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WO2015129389A1 - Trolley-utilizing conveying device - Google Patents

Trolley-utilizing conveying device Download PDF

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Publication number
WO2015129389A1
WO2015129389A1 PCT/JP2015/052798 JP2015052798W WO2015129389A1 WO 2015129389 A1 WO2015129389 A1 WO 2015129389A1 JP 2015052798 W JP2015052798 W JP 2015052798W WO 2015129389 A1 WO2015129389 A1 WO 2015129389A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriage
circular
work
traveling body
work support
Prior art date
Application number
PCT/JP2015/052798
Other languages
French (fr)
Japanese (ja)
Inventor
伸大 小佐々
勝由 堤田
秀俊 高橋
智徳 岩崎
克俊 江花
玄徳 藤井
正浩 大江
Original Assignee
株式会社ダイフク
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ダイフク filed Critical 株式会社ダイフク
Priority to BR112016019910-3A priority Critical patent/BR112016019910B1/en
Priority to MX2016011087A priority patent/MX2016011087A/en
Publication of WO2015129389A1 publication Critical patent/WO2015129389A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines

Definitions

  • the present invention relates to a transport device using a carriage that can form a work floor that is continuous in a strip shape along a certain travel route.
  • the hourglass-shaped intermediate platform is connected to the front and rear circular carriages together with the connecting rod around the vertical support shaft and the horizontal turn path portion.
  • the belt-like work floor which is rotated so as to move toward the center side and continuously moves over the entire area of the endless circulation travel path is formed by the circular carriage and the hourglass intermediate stage.
  • the workpiece is supported by a large-sized circular carriage, and the hourglass intermediate stage is used only to fill a gap between the circular carriages.
  • a transport device In order to be able to handle a large workpiece like an automobile body, such a transport device has a drum-shaped intermediate platform as a workpiece support cart that can run on the floor surface, and the length in the running direction is increased. Can be used as work floor forming means for filling gaps between workpiece support carriages.
  • the present invention proposes a carriage-use transfer device that can solve the above-described conventional problems, and the carriage-use transfer device according to the present invention has a relationship with the embodiments described later.
  • the traveling body for transport (4) traveling on a certain travel route is the workpiece support carriage (8).
  • Consists of a circular carriage (9), and the circular carriage (9) is adjacent to one end concave curved edge (13) whose circumferential edge (9a) is provided at one end of the work support carriage (8) in the front and rear direction.
  • the circular peripheral edge (9a) of the circular carriage (9) in one conveyance traveling body (4) is the other end of the work support carriage (8) in the other conveyance concave body (4).
  • Adjacent to the edge (12), the work supporting carriage (8) of each transport traveling body (4) is configured to be able to run in a continuous state via the circular carriages (9) adjacent to the front and rear sides.
  • the work support carriage (8) has a connecting member (14) whose end is located at the center of the arc of the other-end concave end edge (12) of the work support carriage (8). Attached to the end of the connecting member (14) with respect to the vertical support shaft (17) of the circular carriage (9) in the transport traveling body (4) adjacent to the end. A recessed portion (18) that can be relatively rotatably fitted around the shaft (17) is provided, and the horizontal turn path portion (3) in the traveling path is provided with a guide roller (9) provided on the circular carriage (9). 21a, 21b) via the circular platform A guide rail (35) for guiding only the car (9) is laid.
  • the transport traveling bodies composed of the workpiece support carriage and the circular carriage that are connected to each other are not connected and integrated with each other, but are separated and independent. Therefore, outside the travel route, each transport travel body is used as a work transport carriage on the floor surface, and the transport travel body with the work loaded on the work support cart is sent into the travel path. A predetermined work is performed on the work transported by each transporting traveling body on the route, and the finished work is loaded on the transporting traveling body (work support carriage) while the work is transported. The body can be sent out from the exit of the travel route and transported to any place.
  • each transport travel can be performed simply by driving the transport travel body fed into the travel route by an appropriate propulsion drive unit provided in addition to the entrance of the travel route.
  • the front-side transport traveling body is driven to be pushed back by the rear-side transport traveling body by fitting the one-end recessed portion of the connecting member included in the body with the vertical support shaft at the center position of the circular carriage included in each transport traveling body.
  • the circumferential edges of the circular carriages in the front and rear other transportation traveling bodies are adjacent to the other end concave curved edge of the work supporting carriage in the front and rear transportation traveling bodies. It can be made to drive in a state, that is, a state in which the surface of each transporting traveling body is continuous in a band shape.
  • the cart since this state is also maintained in the horizontal turn path portion of the travel route, the cart in a state in which various operations on the transported work on the travel route continue in a belt shape over the entire length of the travel route including the horizontal turn route portion. Using the surface, it can be done safely and easily.
  • the propulsion drive means for causing each transport traveling body to travel forward in the travel route may have any configuration.
  • the width of the work support carriage (8) of each transporting traveling body (4) is larger than the diameter of the circular carriage (9)
  • at least one of the parallel sides of the work support carriage (8) is frictionally driven.
  • a friction drive device using a friction drive wheel that is in pressure contact with the friction driven surface can be used.
  • the connecting member (14) included in the transport traveling body (4) is provided as a single linear shape including the recessed portion (18) at one end and the vertical support shaft (17) at the other end.
  • the linear member (15) is provided with a friction driven surface (15a) continuous over the entire length of the linear member (15), and the linear path portion (1, 2) in the travel path includes the friction driven surface.
  • Each traveling body (4) can be configured to be propelled by friction drive means (5, 6) having a friction drive wheel (38a) in pressure contact with (15a).
  • the friction drive device can be used regardless of the width of the workpiece support carriage and the diameter of the circular carriage, and the friction drive device is not located on the side of the conveyance run body, but on the conveyance run body. It can be arranged using the lower space.
  • each transporting traveling body (4) may be configured so that they cannot be easily separated while being connected by the connecting means.
  • the vertical support shaft (17) that pivotally supports the circular carriage (4) is configured to be detachable above the circular carriage (9), and the workpiece support carriage (8 ) And the circular carriage (9) can be separated. According to this configuration, it becomes very easy to divide and handle the transport traveling body outside the travel route into the work support carriage and the circular carriage, and it is easy to store and maintain the transport traveling body that is not used. become.
  • the transportation device using a carriage of the present invention can be used for transportation of an automobile body in an automobile assembly line or the like.
  • a temporary storage shelf such as a part to be assembled to the automobile body is required.
  • Temporary storage shelves for these parts are preferably arranged on both the left and right sides of the car body supported on the work support carriage. For this reason, not only the lateral width of the work support carriage becomes very large, but also the traveling When the automobile body is loaded and unloaded on the work support carriage outside the route, it is necessary to remove the temporary storage shelves for the parts and the like.
  • the circular carriage (9) is disposed on the rear side of the workpiece support carriage (8), and temporary parts such as the parts are disposed on the lateral side portion of the workpiece support carriage (8).
  • Auxiliary carts (10a, 10b) provided with a storage shelf and the like are arranged, and the circular cart (9) is provided with a pulling member (22) swingable around the vertical support shaft (17), and the auxiliary cart (10a, 10b) is configured to be connected to the pulling member (22) of the transport traveling body (4) positioned immediately before and to be pulled by the transport traveling body (4) positioned immediately before. I can do it.
  • the auxiliary carriage to be pulled by the immediately preceding transport traveling body is disposed on the lateral side of the work supporting carriage of each transport traveling body.
  • the work support carriage and the auxiliary carriage travel together in a state where the auxiliary carriage is attached to the vehicle. Therefore, if provisional shelves for parts and the like are provided on the auxiliary carriage, the parts attaching operation to the work supported on the work support carriage can be performed easily and efficiently.
  • the transport traveling body sent out of the travel path is in a state of pulling the auxiliary cart to the rear side of the rear circular cart, and there is no auxiliary cart on the side of the workpiece support cart. Easy loading and unloading work on the top.
  • the pulling member (22) has its free end connected to the front end of the auxiliary cart (10a, 10b) so as to be swingable horizontally around the vertical pin (28).
  • (10a, 10b) on the inner side adjacent to the workpiece support carriage (8) is provided with an up-down locking pin (29a, 29b), and the workpiece support carriage (8) has the locking pin (29a, 29b).
  • the auxiliary cart is simply configured to be connected to the free end of the traction member with one vertical pin, but on the travel route, the rear traveling vehicle adjacent to the auxiliary cart is located.
  • the auxiliary carriage When the workpiece support carriage and the auxiliary carriage are engaged with the locking pin on the side of the auxiliary carriage to the groove on the side of the work support carriage, the auxiliary carriage is horizontally moved around the vertical pin for connection with the traction member. It is possible to reliably prevent the swinging and to pull the auxiliary cart stably.
  • the operation of the locking pin is unnecessary, and the locking pin is automatically moved to the work support carriage side with the approaching and separating movement of the front and rear transporting traveling bodies. It can be taken in and out of the groove.
  • the pulling member (22) swings around the vertical support shaft (17) on the bearing member (32) of the circular carriage (9) that supports the vertical support shaft (17) so as to be freely pulled upward.
  • a support member (33) is provided that is freely fitted and prevents the pulling member (22) from dropping downward from the bearing member (32), and supports the workpiece on the rear conveyance traveling body (4).
  • the extension parts (23c, 24c) of the pulling member (22) extending backward from the circular carriage (9) in the front conveyance traveling body (4) are separated forward.
  • a receiving tool (43) that can be freely received can be provided.
  • the bearing member of the vertical spindle that pivotally supports the circular carriage can be used, and by the addition of the receiving member,
  • the pulling member can be held at a fixed position of the circular carriage also when the conveyance running bodies are separated from the adjacent conveyance traveling bodies and the circular carriage is separated from the work support carriage.
  • the auxiliary carriage pulls the traction member pulling the auxiliary carriage. It can be received at a fixed position on the front side of the adjacent workpiece support carriage.
  • a special support means is provided on the side of the circular carriage for receiving the middle position of the long traction member from the center position of the circular trolley to the free end connected to the auxiliary carriage while allowing the traction member to swing horizontally.
  • FIG. 1 is a partially omitted plan view showing an entrance part and an exit part of a traveling body for conveyance with respect to a constant travel path, and a horizontal turn path part.
  • FIG. 2 is a partially cutaway plan view of the assembled transport traveling body.
  • FIG. 3 is a side view of the conveying traveling body.
  • FIG. 4A is a plan view showing the workpiece support carriage, and FIG. 4B is a front view showing the workpiece support carriage.
  • FIG. 5A is a plan view of the circular carriage, and FIG. 5B is a front view of the circular carriage.
  • FIG. 6A is a plan view showing an auxiliary cart, and FIG. 6B is a front view showing a main part of the auxiliary cart.
  • FIG. 7 is a partially cutaway front view showing the workpiece support carriage and auxiliary carriages arranged on the left and right sides thereof.
  • FIG. 8A is a partially longitudinal side view showing the structure of the central portion of the circular carriage, and
  • FIG. 8B is a plan view thereof.
  • 9A and 9B are cross-sectional plan views showing the structure of the central portion of the circular carriage.
  • FIG. 10 is a plan view showing an example of the friction drive means.
  • 1, 1 is an entrance-side straight path section
  • 2 is an exit-side straight path section
  • 3 is a horizontal turn path section that connects both straight path sections 1 and 2.
  • 4 is a conveyance traveling body, and each conveyance traveling body 4 that receives thrust by the friction drive means 5 provided near the entrance of the entrance-side straight path portion 1 and is sent to the entrance-side straight path portion 1 Similarly, it is boosted by the subsequent conveying traveling body 4 that receives thrust by the friction drive means 5, and passes from the entrance of the entrance-side straight path portion 1 to the exit of the exit-side straight path portion 2 via the horizontal turn path portion 3.
  • the vehicle travels at a constant speed on a constant travel route, and is fed from the outlet-side straight path portion 2 at a constant speed by the friction drive means 6 provided near the outlet of the outlet-side straight path portion 2.
  • the transport traveling body 4 is adjacent to a work support carriage 8 having a work support portion 7 that supports a work W such as an automobile body, and a rear side in the running direction of the work support carriage 8. And a pair of left and right auxiliary carriages 10a and 10b connected to the rear side of the circular carriage 9 and the circular carriage 9 connected to the workpiece support carriage 8.
  • the work support carriage 8 has a width that can secure a work floor on both the left and right sides of the supported work W, and a length that is slightly longer than the total length of the work W.
  • the work support carriage 8 has a radius slightly larger than the radius of the circular peripheral edge 9a of the circular carriage 9.
  • Arc-shaped concavely curved end edges 12 and 13 located on the center line along the longitudinal direction are formed symmetrically.
  • the bottom of the work support carriage 8 extends forward from the front concave end edge 12 so that the front end reaches the center of the arc of the front concave end edge 12 and from the rear concave end edge 13.
  • a single linear member 15 extending rearward and having a rear end reaching the arc center of the concave curved edge 13 is attached, and extends forward from the concave curved edge 12 on the front side of the linear member 15.
  • a bearing member 16 is attached to the rear end of the linear member 15, and the circular carriage 9 is attached to the bearing member 16 at the center of the circumferential edge 9 a of the circular carriage 9 and the concave curved edge on the rear side of the work support carriage 8.
  • the circular carriage 9 can rotate about the vertical support shaft 17 with respect to the workpiece support carriage 8 while maintaining the state in which the circumferential edge 9 a is adjacent to the concave curved edge 13 on the rear side of the workpiece support carriage 8.
  • the front end of the linear member 15, that is, the front end of the connecting member 14 is a recess that can be fitted from the rear side to the vertical support shaft 17 that supports the circular carriage 9 of the transport traveling body 4 adjacent to the front side.
  • An engagement member 19 having an insertion portion 18 is attached (see FIGS. 8 and 9).
  • the circular carriage 9 has three free wheels for traveling on the floor surface below the circular carriage having a diameter slightly smaller than the width of the workpiece support carriage 8.
  • the two universal wheels 20a and 20b are arranged such that when the conveyance traveling body 4 is in a straight traveling position, as shown in FIG.
  • it is arranged so as to be in series in the front and rear direction in the traveling direction on the outer side when traveling along the horizontal turn path portion 3 in FIG. 1, and is opposite to the center line with respect to the pair of front and rear universal wheels 20a and 20b.
  • a pair of front and rear guide rollers 21a and 21b are arranged at substantially symmetrical positions on the side, and the remaining one free wheel 20c is located at an intermediate position between the pair of front and rear guide rollers 21a and 21b and the pair of front and rear guide rollers 21a and 21b. It is arranged outside the connecting virtual line.
  • An imaginary line connecting the pair of front and rear guide rollers 21 a and 21 b is located inside the pair of front and rear universal wheels 11 on the same side of the work support carriage 8.
  • the pair of left and right auxiliary carts 10 a and 10 b are pulled by a pulling member 22 that can swing left and right around a vertical support shaft 17 that supports the circular cart 9.
  • the pulling member 22 is composed of two pulling member single bodies 23 and 24 that pull the auxiliary carts 10a and 10b separately. These pulling member single bodies 23 and 24 are integrated by a common bearing plate 25 fixed to the front end thereof (see FIGS. 8 and 9), and the parallel portions 23a extending from the bearing plate 25 to the periphery of the circular carriage 9 are provided.
  • Second extending portions 23c and 24c extending obliquely rearward are provided, and auxiliary cart connecting plates 23d and 24d are attached to the free ends of the second extending portions 23c and 24c (see FIG. 5A).
  • each auxiliary carriage 10a, 10b is provided with a free wheel 26 in the vicinity of the four corners of the bottom, and the auxiliary carriage connecting plate 23d at the rear end of the traction member units 23, 24 in the traction member 22 is provided. , 24d, and a bearing member 27 for projecting at the center in the width direction of the front end, and with the auxiliary carriage coupling plates 23d, 24d overlaid on these bearing members 27, the vertical pin 28 is placed between them.
  • the auxiliary carts 10a and 10b are connected to the rear ends of the pulling members 23 and 24 so as to be relatively horizontally swingable around the vertical pins 28, and the vertical pins 28 are extracted. It is possible to release the connection.
  • locking pins 29a and 29b are provided on both the left and right sides near the rear ends of the auxiliary carts 10a and 10b so as to protrude upward at positions slightly laterally outward from the left and right side surfaces of the auxiliary carts 10a and 10b. It is attached. As shown in the figure, the auxiliary carts 10a and 10b are symmetrically configured, and the rear ends of the pulling members 23 and 24 of the pulling member 22 are connected to either of the auxiliary carts 10a and 10b. Can be used.
  • the pair of left and right auxiliary carts 10a and 10b When the pair of left and right auxiliary carts 10a and 10b are pulled by the pulling member 22 on the rear side of the circular cart 9, the pair of left and right auxiliary carts 10a and 10b have substantially the same distance as the lateral width of the workpiece support cart 8. It is configured to be able to follow and move in parallel with each other.
  • the work supporting carriage 8 of the transporting traveling body 4 has a relationship that is located on the inner side of the pair of left and right engaging pins 29a, 29b of the auxiliary carriages 10a, 10b on the left and right sides of the parallel straight line.
  • Lower open recessed grooves 8a and 8b are formed in which the stop pins 29a and 29b are movably fitted in the length direction of the work support carriage 8 (the length direction of the linear member 15) (see FIG. 7). ).
  • These concave groove portions 8a and 8b have at least the forward direction end portion (front end) of the work support carriage 8 among the front and rear ends thereof, and a pair of left and right auxiliary carts 10a and 10b of the front conveyance traveling body 4.
  • the work support carriage 8 of the rear conveyance traveling body 4 enters and moves between the inner sides of the pair of left and right auxiliary carriages 10a and 10b in the recessed groove portions 8a and 8b on the left and right sides of the work support carriage 8.
  • the pair of left and right auxiliary carts 10a and 10b are automatically fitted so that the inner sides of the pair of left and right auxiliary carts 10a and 10b are adjacent to the left and right sides of the work support cart 8.
  • the workpiece support carriage 8 can move to a predetermined position between the two.
  • a rectangular opening 30 penetrating vertically is provided at the center of the circular carriage 9, and is formed at the bottom of the circular carriage 9 so as to cross the lower side of the rectangular opening 30.
  • a bearing member 32 is fixed to the support plate 31 that is installed.
  • the vertical support shaft 17 is inserted into and supported by the bearing member 32 so that the vertical support shaft 17 can be pulled out upward.
  • the lower half portion of the vertical support shaft 17 protruding downward from the bearing member 32 is the rear end of the linear member 15.
  • the shaft member is fitted in the shaft hole of the bearing member 16.
  • the rear half portion of the bearing member 16 having the shaft hole is located in the upper half portion of the thickness of the linear member 15, and the lower end portion of the vertical support shaft 17 protruding below the rear half portion of the bearing member 16.
  • the recessed portion 18 of the engaging member 19 at the front end of the linear member 15 (connecting member 14) extending forward from the work support carriage 8 of the rear transfer traveling body 4 is fitted.
  • the front half portion of the engagement member 19 having the recessed portion 18 is located in the lower half portion of the thickness of the linear member 15 (connecting member 14) and is used for transporting the front side.
  • the bearing member 16 at the rear end of the linear member 15 and the engaging member 19 at the front end are configured to have the same width as the linear member 15 (the connecting member 14), and the bearing member 16 at the rear end is engaged with the front end.
  • the left and right side surfaces of the linear member 15 (the connecting member 14) including the member 19 form linear friction driven surfaces 15a and 15b that are continuous over the entire length.
  • the bearing plate 25 at the front end of the pulling member 22 is fitted to the lower end portion of the bearing member 32 that supports the vertical support shaft 17 so as to protrude downward from the support plate 31 so as to be horizontally swingable around the vertical support shaft 17.
  • a receiving member 33 that prevents the bearing plate 25 from dropping downward from the bearing member 32 is attached to the support plate 31 via an attachment plate 34. Therefore, as shown in FIG. 8A, the parallel portions 23a and 24a of the traction member single bodies 23 and 24 constituting the traction member 22 are formed on the bottom surface of the circular carriage 9 and the linear member 15 of the transport traveling body 4 on the rear side. It is located between the part extended ahead, ie, the connection member 14. FIG. In addition, it is desirable to attach the friction reduction member 33a for smoothing the relative horizontal rocking
  • the straight path portions 1, 2 and the horizontal turn path portion 3 are provided with a pair of front and rear guide rollers 21 a, 21 b included in the circular carriage 9 of each transporting traveling body 4.
  • Guide rails 35 are provided so as to be guided from both sides.
  • the friction drive means 5 provided near the entrance of the entrance-side straight path portion 1 and the friction drive means 6 provided near the exit of the exit-side straight path portion 2 It is composed of a pair of friction drive units 36 and 37.
  • the friction drive units 36 and 37 have the same structure, and a pair of left and right friction drive wheels 38a and 38b sandwiching the linear member 15 provided on the work support carriage 8 of the transport traveling body 4 from both left and right sides, and these Motors 39a and 39b for rotating and driving both friction drive wheels 38a and 38b are provided.
  • the friction drive wheels 38a and 38b and the motors 39a and 39b are respectively attached to movable frames 41a and 41b supported around the vertical support shafts 40a and 40b so as to be swingable horizontally.
  • the movable frames 41a and 41b are compressed coil springs.
  • the urging means 42a and 42b for use urge the friction drive wheels 38a and 38b in the direction in which they are pressed against the left and right friction driven surfaces 15a and 15b of the linear member 15. Therefore, the friction drive wheels 38a and 38b provided in the pair of front and rear friction drive units 36 and 37 are rotationally driven by the motors 39a and 39b, and both the left and right frictions of the linear member 15 to which the friction drive wheels 38a and 38b are pressed. Via the driven surfaces 15 a and 15 b, the transporting traveling body 4 can be moved straight forward in the longitudinal direction of the linear member 15, that is, in a forward direction in which the circular carriage 9 follows the work support carriage 8.
  • the transport traveling body 4 configured as described above has a horizontal turn path from the entrance of the entrance-side straight path portion 1 in a forward direction in which the circular carriage 9 follows immediately after the workpiece support carriage 8. It arrange
  • the circular carriage 9 of each transporting traveling body 4 is regulated in position and orientation on the traveling route by the pair of front and rear guide rollers 21a and 21b engaging with the guide rail 35. As shown in FIGS.
  • the vertical support shaft 17 located at the center of 9 is engaged with the front end of the connecting member 14 extending forward from the work supporting carriage 8 of the rear traveling traveling body 4.
  • the work support carriage 8 of each transporting traveling body 4 is positioned in front of and behind the center of the traveling path.
  • the pair of front and rear circular carriages 9 positioned on the line are regulated in a direction parallel to the travel route.
  • route part 2 has the linear member 15 in each friction drive unit 36,37 of the friction drive means 5,6. It is in a state of being sandwiched between the friction drive wheels 38a and 38b.
  • the traveling body 4 is driven forward, and the forward force is transmitted to the circular carriage 9 at the rear end of the immediately preceding transportation traveling body 4 via the linear member 15, and this boosting action is the outlet of the outlet-side straight path portion 2. It acts on each of the transport traveling bodies 4 until all the transport traveling bodies 4 on the travel path travel forward while maintaining a continuous state of a daisy chain toward the exit of the exit-side straight path portion 2. .
  • Each transporting traveling body 4 that has reached the outlet of the outlet-side straight path portion 2 is sent out at a predetermined speed by the friction drive means 6.
  • the conveyance traveling body 4 is sequentially engaged with the guide rail 35 by the manual operation or the like toward the entrance of the entrance-side straight path portion 1 and the pair of guide rollers 21a and 21b of the circular carriage 9 is engaged with the guide rail 35 and the linear member. 15 for engaging the rear end of the engaging member 19 of the engagement member 19 being driven by the friction drive means 5 (or the linear member 15 is stopped after being separated from the friction drive means 5). It is necessary to feed to a position where thrust is received from the friction drive means 5 so as to be fitted to the vertical support shaft 17 at the center of the circular carriage 9 of the traveling body 4.
  • the transport traveling body 4 when the transport traveling body 4 is sequentially sent to the entrance of the entrance-side straight path portion 1 by manual work or the like, the transport traveling body 4 is interposed between the pair of left and right auxiliary carts 10a, 10b of the immediately preceding transport traveling body 4. At this time, as described above, the locking pins 29a and 29b inside the pair of left and right auxiliary carts 10a and 10b of the immediately preceding transport traveling body 4 are fed back. It is inserted from the front end into the recessed groove portions 8a and 8b on both the left and right sides of the work support carriage 8 in the side transport traveling body 4 (see FIG. 7).
  • tip of the connection member 14 (linear member 15) of the conveyance body 4 for back side is fitted in the vertical support shaft 17 of the center of the circular trolley 9 in the conveyance body 4 for front side.
  • the second extending portions 23c and 24c of the pulling member 22 (the pulling member single bodies 23 and 24) pulling the pair of left and right auxiliary carts 10a and 10b of the front transfer traveling body 4 are used for the rear transfer. Since the workpiece 4 is adjacent to the inclined front sides 8c and 8d on the left and right sides of the front end of the workpiece support carriage 8 in the traveling body 4, the receiving member 43 that receives the second extending portions 23c and 24c in a freely detachable manner at this time is supported by the workpiece.
  • the front end of the carriage 8 is provided on the inclined front sides 8c and 8d on both the left and right sides.
  • the conveyance traveling body 4 is sequentially fed to the entrance of the entrance-side straight path portion 1 so that the exit of the exit-side straight path portion 2 passes from the entrance of the entrance-side straight path portion 1 via the horizontal turn route portion 3.
  • a substantially flat belt-like work floor formed by the surfaces of the work supporting carriage 8 and the circular carriage 9 that are alternately arranged is secured.
  • the Therefore, the work on the work (car body or the like) W supported on each work support carriage 8 via the work support portion 7 is carried out on the surfaces of the work support carriage 8 and the circular carriage 9 so as to protrude from the periphery of the work W.
  • the work floor be formed safely and easily, but also the transfer of workers between the work support carriages 8 can be carried out safely using the circular carriage 9.
  • the pair of left and right auxiliary carts 10a and 10b pulled by the front transporting traveling body 4 travels along the left and right sides of the work supporting carriage 8 of the rear transporting traveling body 4, so By mounting mounting parts, necessary tools, etc. on the workpiece W supported by the workpiece support carriage 8 located inside the pair of left and right auxiliary carriages 10a, 10b on the auxiliary carriages 10a, 10b, respectively, Parts can be efficiently attached to the workpiece W supported by the workpiece support carriage 8 of each transporting traveling body 4.
  • each work support carriage 8 positioned in the middle of the two front and rear circular carriages 9 whose travel path is regulated by the guide rail 35 is Since both front and rear ends of the linear member 15 can swing horizontally relative to the vertical support shaft 17 at the center of the two front and rear circular carriages 9, they are positioned on a line connecting the centers of the two front and rear circular carriages 9. Drive in the state. Accordingly, each work support carriage 8 is connected to the two front and rear circular carriages 9, that is, a connection in which the circular peripheral edge 9 a of the circular carriage 9 is always adjacent to the concave and bent edges 12 and 13 at both front and rear ends of the work support carriage 8. It is possible to run while maintaining the state.
  • the pair of left and right auxiliary carts 10 a and 10 b pulled by each circular cart 9 is conveyed rearward via a pulling member 22 that can swing horizontally around the vertical support shaft 17 at the center of the circular cart 9. Accordingly, the rear ends of the auxiliary carriages 10a and 10b are connected to the left and right sides of the work support carriage 8 via the locking pins 29a and 29b. Since the side engaging grooves 8a and 8b are engaged, the auxiliary carriages 10a and 10b are not separated from the work supporting carriage 8 or moved relative to each other in the traveling direction.
  • the work support carriage 8 of each transporting traveling body 4 that is continuous in a daisy chain.
  • the continuous carriage floor formed by the circular carriage 9 and the auxiliary carriages 10a and 10b on the left and right sides of the workpiece support carriage 8 can be used to safely work on the workpiece W loaded on the workpiece support carriage 8. It can be done efficiently.
  • the horizontal turn path portion 3 between the linear member 15 (connecting member 14) of the rear conveyance traveling body 4 traveling through the section 3 and the linear member 15 (connecting member 14) of the front conveying traveling body 4 is provided.
  • the radius of curvature of the horizontal turn path portion 3 should be determined so that the included angle on the arc center side is an obtuse angle of 90 degrees or more.
  • the transporting traveling body 4 that has reached the outlet of the outlet-side straight path portion 2 and no longer receives the thrust from the friction drive means 6 is pulled out from the outlet-side straight path portion 2 by manual work or the like.
  • the vertical support shaft 17 at the center of the circular carriage 9 in the front transport traveling body 4 is extended from the front end of the work support carriage 8 of the rear transport traveling body 4, and the recessed portion 18 at the tip of the connecting member 14 is extended.
  • the pair of left and right auxiliary carts 10a and 10b that are separated from the front and pulled by the pulling member 22 have a locking pin 29a and 29b on the inner side of the rear end, and a work support cart of the transport traveling body 4 on the rear side.
  • each pulling member unit 23 of the pulling member 22 pulling the pair of left and right auxiliary carts 10a, 10b, 24 is supported at the second extending portions 23c and 24c by support members 43 attached to the inclined front sides 8c and 8d on the left and right sides of the front end of the work support carriage 8 positioned between the auxiliary carriages 10a and 10b.
  • each pulling member is pulled out.
  • the second extending portions 23c and 24c of the single bodies 23 and 24 are detached forward from the receiving tool 43 of the rear work support carriage 8 that has supported the second extending portions 23c and 24c.
  • Each conveyance traveling body 4 pulled out from the outlet of the outlet-side straight path portion 2 draws the vertical support shaft 17 at the center of the circular carriage 9 upward through the rectangular opening 30, so that the workpiece support carriage 8 and the circular carriage 9 are pulled out. Can be separated from each other. Then, by pulling upward the vertical pin 28 that connects the auxiliary carriage connecting plates 23d, 24d of the pulling member 22 extending from the circular carriage 9 and the bearing member 27 of the auxiliary carriages 10a, 10b, the circular carriage is pulled out. 9 can separate auxiliary carts 10a and 10b.
  • the pulling member 22 is in a state of being connected to the center of the circular carriage 9 via the bearing member 32 and the receiving member 33 at the center of the circular carriage 9, but the receiving member 33 is supported on the support plate as necessary. It is also possible to remove the pulling member 22 from the circular carriage 9 by removing it from 31.
  • auxiliary carts 10a and 10b are disposed on both the left and right sides of the workpiece support cart 8
  • the auxiliary cart may be disposed on only one of the left and right sides.
  • the linear member 15 having the friction driven surfaces 15 a and 15 b is not necessary, and the work support carriage 8 is used to support the connecting member 14 extending forward from the work support carriage 8 and the circular carriage 9 by the vertical support shaft 17. It is also possible to provide a bearing member extending rearward from the rear.
  • the circular carriage 9 is pivotally supported by the vertical support shaft 17 on the rear end side of the workpiece support carriage 8, but the pair of left and right auxiliary carriages 10 a and 10 b are pulled by the pulling member 22 on the front end side of the workpiece support carriage 8. It is also possible to support the cart 9 by the vertical support shaft 17. In this case, the connecting member 14 is extended backward from the rear end of the work support carriage 8.
  • a configuration in which a guide roller that sandwiches the linear member 15 from the left and right sides is provided on the travel path side, or on the lower side of the straight member 15 A configuration in which a guide roller rotatably supported around a vertical axis is sandwiched between groove-shaped guide rails on the travel path side can also be used.
  • the conveyance device using a carriage of the present invention can be used in an automobile assembly line or the like as a conveyance device capable of forming a continuous work floor in a strip shape along a certain travel route.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Intermediate Stations On Conveyors (AREA)

Abstract

　Conveying traveling bodies (4) in which a circular trolley (9) is linked by a vertical spindle (17) to a longitudinal end of a work support trolley (8) so as to be capable of rotating are used in this trolley-utilizing conveying device. In between the conveying traveling bodies (4) that are adjacent to each other in the longitudinal direction on the travel path, the end part of a linking member (14) configured so as to enable the circular trolley (9) and the work support trolley (8) to travel adjacent to each other and provided to the work support trolley (8) is provided with a recess that can be fitted, in a mutually rotatable manner, to the vertical spindle (17) of the circular trolley (9) of the conveying traveling body (4) adjacent to the end part side. A guide rail (35) for guiding only the circular trolley (9) through a pair of front and rear guide rollers provided to the circular trolley (9) is installed at a horizontal turn path section (3) of the travel path.

Description

台車利用の搬送装置Conveyor using trolley
　本発明は、一定走行経路に沿って帯状に連続する作業床を形成することの出来る台車利用の搬送装置に関するものである。 The present invention relates to a transport device using a carriage that can form a work floor that is continuous in a strip shape along a certain travel route.
　この種の台車利用の搬送装置としては、特許文献１に記載されるように、無端循環走行経路上で等間隔おきに配置された円形台車を連結杆により無端状に連結すると共に、各連結杆に、前後に隣り合う円形台車間を埋める鼓形中間台を固着支持したものが知られている。この公知の構成では、鼓形中間台の前後両凹曲端縁に円形台車の円周縁が隣接しており、各鼓形中間台がその前後の円形台車に対して、その円形台車の円周縁の中心位置に連結杆を軸支する垂直支軸の周りに相対回転可能に構成されている。従って、無端循環走行経路中の水平ターン経路部を各円形台車が走行通過するとき、鼓形中間台が前後の円形台車に対して、前記垂直支軸の周りに連結杆と共に水平ターン経路部の中心側に移動するように回動することになり、無端循環走行経路の全域にわたって連続して移動する帯状の作業床が円形台車と鼓形中間台とで形成される。 As this type of carriage-use conveyance device, as described in Patent Document 1, circular carriages arranged at equal intervals on an endless circulation travel path are connected endlessly by a connection rod, and each connection rod In addition, a drum-shaped intermediate stand that fills a space between adjacent circular carriages in the front and rear is known. In this known configuration, the circular peripheral edge of the circular carriage is adjacent to the front and rear concave concave edges of the hourglass intermediate stage, and each hourglass intermediate stage has a circular peripheral edge of the circular carriage relative to the front and rear circular carriages. It is comprised so that relative rotation is possible around the vertical spindle which pivotally supports a connecting rod in the center position. Accordingly, when each circular carriage travels through the horizontal turn path portion in the endless circulation traveling path, the hourglass-shaped intermediate platform is connected to the front and rear circular carriages together with the connecting rod around the vertical support shaft and the horizontal turn path portion. The belt-like work floor which is rotated so as to move toward the center side and continuously moves over the entire area of the endless circulation travel path is formed by the circular carriage and the hourglass intermediate stage.
特表２００７－５２６８６１号公報Special table 2007-526861 gazette
　上記の特許文献１に記載された台車利用の搬送装置では、ワークを支持するのはサイズの大きな円形台車であり、鼓形中間台は単に円形台車間の隙間を埋めるためだけに使用されている。このような搬送装置は、自動車車体のように大型のワークを取り扱えるようにするため、鼓形中間台を、床面上を走行可能なワーク支持台車として走行方向の長さを長くし、円形台車を、ワーク支持台車間の隙間を埋める作業床形成手段に転用することが考えられる。しかしながら、このように構成したとしても、無端循環走行経路上で交互に連続して配置された全てのワーク支持台車（鼓形中間台）と円形台車は、連結杆により一体に接続されており、他の作業場所や他の走行経路上にワーク支持台車（鼓形中間台）上のワークを移そうとすると、ワーク支持台車（鼓形中間台）上からワークを他の搬送手段に移載しなければならず、ワーク支持台車（鼓形中間台）をそのまま無端循環走行経路上に対するワークの搬入搬出作業に活用することが出来ない。 In the carriage-based transfer apparatus described in Patent Document 1 described above, the workpiece is supported by a large-sized circular carriage, and the hourglass intermediate stage is used only to fill a gap between the circular carriages. . In order to be able to handle a large workpiece like an automobile body, such a transport device has a drum-shaped intermediate platform as a workpiece support cart that can run on the floor surface, and the length in the running direction is increased. Can be used as work floor forming means for filling gaps between workpiece support carriages. However, even if configured in this way, all the work support carriages (hourglass intermediate stage) and circular carriages that are alternately and continuously arranged on the endless circulation travel path are integrally connected by a connecting rod, If you try to move the workpiece on the workpiece support carriage (hourglass intermediate platform) to another work place or other travel route, the workpiece is transferred from the workpiece support carriage (hourglass intermediate platform) to another transfer means. In other words, the workpiece support carriage (the hourglass intermediate platform) cannot be used as it is for the work loading / unloading work on the endless circulation travel route.
　本発明は、上記のような従来の問題点を解消することのできる台車利用の搬送装置を提案するものであって、本発明に係る台車利用の搬送装置は、後述する実施例との関係を理解し易くするために、当該実施例の説明において使用した参照符号を括弧付きで付して示すと、一定走行経路上を走行する搬送用走行体(4)が、ワーク支持台車(8)と円形台車(9)から構成され、前記円形台車(9)は、その円周縁(9a)がワーク支持台車(8)の走行方向前後の一端に設けられた一端凹曲端縁(13)に隣接する状態で、当該円周縁(9a)と同心状の垂直支軸(17)の周りに自転可能にワーク支持台車(8)に連結され、ワーク支持台車(8)の走行方向前後の他端には、前記一端凹曲端縁(13)と前後対称形の他端凹曲端縁(12)が設けられ、走行経路上において前後に隣接する搬送用走行体(4)間では、一方の搬送用走行体(4)における円形台車(9)の円周縁(9a)が他方の搬送用走行体(4)におけるワーク支持台車(8)の他端凹曲端縁(12)に隣接して、各搬送用走行体(4)のワーク支持台車(8)が、その前後両側に隣接する円形台車(9)を介して連続する状態で走行出来るように構成された台車利用の搬送装置において、前記ワーク支持台車(8)には、端部が当該ワーク支持台車(8)の他端凹曲端縁(12)の円弧中心に位置する連結部材(14)が取り付けられ、この連結部材(14)の前記端部には、この端部側に隣接する搬送用走行体(4)における円形台車(9)の前記垂直支軸(17)に対し、当該垂直支軸(17)の周りに相対回転自在に嵌合可能な凹入部(18)が設けられ、走行経路中の水平ターン経路部(3)には、円形台車(9)に設けられたガイドローラー(21a,21b)を介して当該円形台車(9)のみを案内するガイドレール(35)が敷設された構成になっている。 The present invention proposes a carriage-use transfer device that can solve the above-described conventional problems, and the carriage-use transfer device according to the present invention has a relationship with the embodiments described later. For ease of understanding, when the reference numerals used in the description of the embodiment are shown in parentheses, the traveling body for transport (4) traveling on a certain travel route is the workpiece support carriage (8). Consists of a circular carriage (9), and the circular carriage (9) is adjacent to one end concave curved edge (13) whose circumferential edge (9a) is provided at one end of the work support carriage (8) in the front and rear direction. Connected to the work support carriage (8) so as to be able to rotate around a vertical support shaft (17) concentric with the circumferential edge (9a). Is provided with the one end concave curved edge (13) and the longitudinally symmetrical other end concave curved edge (12), and is adjacent to the front and rear on the traveling route Between (4), the circular peripheral edge (9a) of the circular carriage (9) in one conveyance traveling body (4) is the other end of the work support carriage (8) in the other conveyance concave body (4). Adjacent to the edge (12), the work supporting carriage (8) of each transport traveling body (4) is configured to be able to run in a continuous state via the circular carriages (9) adjacent to the front and rear sides. In the transport apparatus using the carriage, the work support carriage (8) has a connecting member (14) whose end is located at the center of the arc of the other-end concave end edge (12) of the work support carriage (8). Attached to the end of the connecting member (14) with respect to the vertical support shaft (17) of the circular carriage (9) in the transport traveling body (4) adjacent to the end. A recessed portion (18) that can be relatively rotatably fitted around the shaft (17) is provided, and the horizontal turn path portion (3) in the traveling path is provided with a guide roller (9) provided on the circular carriage (9). 21a, 21b) via the circular platform A guide rail (35) for guiding only the car (9) is laid.
　上記本発明の構成によれば、互いに連結されたワーク支持台車と円形台車とから成る各搬送用走行体は、互いに連結一体化されているのではなく、各々分離独立している。従って、走行経路の外では、各搬送用走行体を床面上でのワーク搬送台車として活用し、ワーク支持台車上にワークを積載した状態の搬送用走行体を走行経路内に送り込み、当該走行経路において各搬送用走行体により搬送されるワークに対して所定の作業を遂行し、作業の終わったワークは、搬送用走行体（ワーク支持台車）上に積載した状態のまま、当該搬送用走行体を走行経路の出口から送り出して、任意の場所に搬送することが出来る。 According to the above-described configuration of the present invention, the transport traveling bodies composed of the workpiece support carriage and the circular carriage that are connected to each other are not connected and integrated with each other, but are separated and independent. Therefore, outside the travel route, each transport travel body is used as a work transport carriage on the floor surface, and the transport travel body with the work loaded on the work support cart is sent into the travel path. A predetermined work is performed on the work transported by each transporting traveling body on the route, and the finished work is loaded on the transporting traveling body (work support carriage) while the work is transported. The body can be sent out from the exit of the travel route and transported to any place.
　しかも、前記走行経路内では、例えば当該走行経路の入り口に併設した適当な推進用駆動手段により当該走行経路内に送り込まれた搬送用走行体を駆動して前進走行させるだけで、各搬送用走行体が備える連結部材の一端凹入部と各搬送用走行体が備える円形台車中心位置の垂直支軸との嵌合により、後ろ側の搬送用走行体で前側の搬送用走行体を後押し駆動させることが出来るのであるが、このとき各搬送用走行体を、前後一方の搬送用走行体におけるワーク支持台車の他端凹曲端縁に前後他方の搬送用走行体における円形台車の円周縁が隣接する状態、即ち、各搬送用走行体の表面が帯状に連続する状態で走行させることが出来る。しかもこの状態は走行経路の水平ターン経路部においても維持されるので、当該走行経路上での搬送ワークに対する各種作業を、水平ターン経路部を含む当該走行経路の全長にわたって帯状に連続する状態の台車表面を活用して、安全に且つ容易に行うことが出来る。 Moreover, in the travel route, for example, each transport travel can be performed simply by driving the transport travel body fed into the travel route by an appropriate propulsion drive unit provided in addition to the entrance of the travel route. The front-side transport traveling body is driven to be pushed back by the rear-side transport traveling body by fitting the one-end recessed portion of the connecting member included in the body with the vertical support shaft at the center position of the circular carriage included in each transport traveling body. However, at this time, the circumferential edges of the circular carriages in the front and rear other transportation traveling bodies are adjacent to the other end concave curved edge of the work supporting carriage in the front and rear transportation traveling bodies. It can be made to drive in a state, that is, a state in which the surface of each transporting traveling body is continuous in a band shape. In addition, since this state is also maintained in the horizontal turn path portion of the travel route, the cart in a state in which various operations on the transported work on the travel route continue in a belt shape over the entire length of the travel route including the horizontal turn route portion. Using the surface, it can be done safely and easily.
　尚、走行経路内で各搬送用走行体を前進走行させるための推進用駆動手段は如何なる構成のものでも良い。例えば、各搬送用走行体(4)のワーク支持台車(8)の横巾が円形台車(9)の直径よりも大きい場合、当該ワーク支持台車(8)の平行両側辺の少なくとも一方を摩擦被動面として、この摩擦被動面に圧接する摩擦駆動輪を利用した摩擦駆動装置を利用することが出来る。この場合、前記搬送用走行体(4)が備える前記連結部材(14)を、一端に前記凹入部(18)を備えると共に他端に前記垂直支軸(17)を備えた１本の直線状部材(15)から構成し、この直線状部材(15)に、その全長にわたって連続する摩擦被動面(15a)を設け、前記走行経路中の直線経路部(1,2)では、前記摩擦被動面(15a)に圧接する摩擦駆動輪(38a)を備えた摩擦駆動手段(5,6)により各搬送用走行体(4)を推進させるように構成することが出来る。この構成によれば、ワーク支持台車の横巾や円形台車の直径とは無関係に摩擦駆動装置を利用出来ると共に、当該摩擦駆動装置を搬送用走行体の横側方ではなく、搬送用走行体の下側空間を利用して配設することが出来る。 Incidentally, the propulsion drive means for causing each transport traveling body to travel forward in the travel route may have any configuration. For example, when the width of the work support carriage (8) of each transporting traveling body (4) is larger than the diameter of the circular carriage (9), at least one of the parallel sides of the work support carriage (8) is frictionally driven. As the surface, a friction drive device using a friction drive wheel that is in pressure contact with the friction driven surface can be used. In this case, the connecting member (14) included in the transport traveling body (4) is provided as a single linear shape including the recessed portion (18) at one end and the vertical support shaft (17) at the other end. The linear member (15) is provided with a friction driven surface (15a) continuous over the entire length of the linear member (15), and the linear path portion (1, 2) in the travel path includes the friction driven surface. Each traveling body (4) can be configured to be propelled by friction drive means (5, 6) having a friction drive wheel (38a) in pressure contact with (15a). According to this configuration, the friction drive device can be used regardless of the width of the workpiece support carriage and the diameter of the circular carriage, and the friction drive device is not located on the side of the conveyance run body, but on the conveyance run body. It can be arranged using the lower space.
　又、各搬送用走行体(4)を構成するワーク支持台車(8)と円形台車(9)とは、連結手段により連結されたままで、容易には分離させることが出来ない構成でも良い。しかし、前記円形台車(4)を軸支する垂直支軸(17)を当該円形台車(9)の上方に抜取り自在に構成し、この垂直支軸(17)の抜き取りにより、ワーク支持台車(8)と円形台車(9)とを分離出来るように構成することが出来る。この構成によれば、走行経路外にある搬送用走行体を、ワーク支持台車と円形台車とに分割して取り扱うことが非常に容易になり、使用しない搬送用走行体の保管や保守作業が容易になる。 In addition, the work supporting carriage (8) and the circular carriage (9) constituting each transporting traveling body (4) may be configured so that they cannot be easily separated while being connected by the connecting means. However, the vertical support shaft (17) that pivotally supports the circular carriage (4) is configured to be detachable above the circular carriage (9), and the workpiece support carriage (8 ) And the circular carriage (9) can be separated. According to this configuration, it becomes very easy to divide and handle the transport traveling body outside the travel route into the work support carriage and the circular carriage, and it is easy to store and maintain the transport traveling body that is not used. become.
　本発明の台車利用の搬送装置は、自動車の組立てラインなどにおける自動車車体の搬送に活用出来る。この場合、自動車車体に組み付ける部品などの仮置き棚が必要になる。この部品などの仮置き棚は、ワーク支持台車上に支持される自動車車体の左右両側に配設するのが望ましいが、このためワーク支持台車の左右横巾が非常に大きくなるばかりでなく、走行経路外においてワーク支持台車上に自動車車体を積み下ろしする場合、前記部品などの仮置き棚が邪魔になるので取り外しも必要になる。この問題点を解決するために、前記円形台車(9)を、ワーク支持台車(8)に対して後ろ側に配置し、ワーク支持台車(8)の横側部には、前記部品などの仮置き棚などが設けられる補助台車(10a,10b)を配置し、円形台車(9)には、前記垂直支軸(17)の周りに揺動自在な牽引部材(22)を設け、前記補助台車(10a,10b)は、直前に位置する搬送用走行体(4)の前記牽引部材(22)と連結して、当該直前に位置する搬送用走行体(4)により牽引されるように構成することが出来る。 The transportation device using a carriage of the present invention can be used for transportation of an automobile body in an automobile assembly line or the like. In this case, a temporary storage shelf such as a part to be assembled to the automobile body is required. Temporary storage shelves for these parts are preferably arranged on both the left and right sides of the car body supported on the work support carriage. For this reason, not only the lateral width of the work support carriage becomes very large, but also the traveling When the automobile body is loaded and unloaded on the work support carriage outside the route, it is necessary to remove the temporary storage shelves for the parts and the like. In order to solve this problem, the circular carriage (9) is disposed on the rear side of the workpiece support carriage (8), and temporary parts such as the parts are disposed on the lateral side portion of the workpiece support carriage (8). Auxiliary carts (10a, 10b) provided with a storage shelf and the like are arranged, and the circular cart (9) is provided with a pulling member (22) swingable around the vertical support shaft (17), and the auxiliary cart (10a, 10b) is configured to be connected to the pulling member (22) of the transport traveling body (4) positioned immediately before and to be pulled by the transport traveling body (4) positioned immediately before. I can do it.
　この構成によれば、走行経路中では、各搬送用走行体のワーク支持台車の横側方に、直前の搬送用走行体によって牽引される補助台車が配置されていて、恰もワーク支持台車の横に補助台車が取り付けられているような状態で当該ワーク支持台車と補助台車とが一体に走行することになる。従って、この補助台車に部品などの仮置き棚を設けておけば、ワーク支持台車上で支持されるワークに対する部品取り付け作業を容易且つ能率良く行うことが出来る。しかも走行経路外に送り出した搬送用走行体は、後方の円形台車の後ろ側に補助台車を牽引する状態になり、ワーク支持台車の横側方には補助台車が存在しないので、このワーク支持台車上に対するワークの積み下ろし作業なども容易に行える。 According to this configuration, in the travel route, the auxiliary carriage to be pulled by the immediately preceding transport traveling body is disposed on the lateral side of the work supporting carriage of each transport traveling body. The work support carriage and the auxiliary carriage travel together in a state where the auxiliary carriage is attached to the vehicle. Therefore, if provisional shelves for parts and the like are provided on the auxiliary carriage, the parts attaching operation to the work supported on the work support carriage can be performed easily and efficiently. In addition, the transport traveling body sent out of the travel path is in a state of pulling the auxiliary cart to the rear side of the rear circular cart, and there is no auxiliary cart on the side of the workpiece support cart. Easy loading and unloading work on the top.
　上記構成を採用する場合、前記牽引部材(22)は、その遊端を前記補助台車(10a,10b)の前端部に垂直ピン(28)の周りに水平揺動自在に連結し、この補助台車(10a,10b)のワーク支持台車(8)に隣接する内側辺には上下向きの係止ピン(29a,29b)を設け、ワーク支持台車(8)には、前記係止ピン(29a,29b)が上下向きに嵌合する凹溝部(8a,8b)を、当該ワーク支持台車(8)の横側辺に沿って、少なくとも当該ワーク支持台車(8)の前側辺側が開放する状態で設けることが出来る。この構成によれば、補助台車を牽引部材の遊端に１本の垂直ピンで連結しただけの簡単な構成でありながら、走行経路上では、補助台車が隣接する後ろ側の搬送用走行体のワーク支持台車と補助台車とが、ワーク支持台車側辺の凹溝部に対する補助台車側辺の係止ピンとの嵌合により、補助台車が牽引部材との連結用の垂直ピンの周りに水平横方向に揺動するのを確実に防止し、安定良く補助台車を牽引することが出来る。しかも、走行経路に対する搬送用走行体の出し入れに際して、前記係止ピンに対する操作などは不要であり、前後の搬送用走行体の接近離間運動に伴って自動的に係止ピンをワーク支持台車側の凹溝部に対し出し入れすることが出来る。 When adopting the above configuration, the pulling member (22) has its free end connected to the front end of the auxiliary cart (10a, 10b) so as to be swingable horizontally around the vertical pin (28). (10a, 10b) on the inner side adjacent to the workpiece support carriage (8) is provided with an up-down locking pin (29a, 29b), and the workpiece support carriage (8) has the locking pin (29a, 29b). ) Are fitted vertically so that at least the front side of the workpiece support carriage (8) is open along the lateral side of the workpiece support carriage (8). I can do it. According to this configuration, the auxiliary cart is simply configured to be connected to the free end of the traction member with one vertical pin, but on the travel route, the rear traveling vehicle adjacent to the auxiliary cart is located. When the workpiece support carriage and the auxiliary carriage are engaged with the locking pin on the side of the auxiliary carriage to the groove on the side of the work support carriage, the auxiliary carriage is horizontally moved around the vertical pin for connection with the traction member. It is possible to reliably prevent the swinging and to pull the auxiliary cart stably. In addition, when the transporting traveling body is taken in and out of the travel path, the operation of the locking pin is unnecessary, and the locking pin is automatically moved to the work support carriage side with the approaching and separating movement of the front and rear transporting traveling bodies. It can be taken in and out of the groove.
　更に、前記牽引部材(22)は、前記垂直支軸(17)を上方に抜取り自在に支持する円形台車(9)の軸受け部材(32)に、当該垂直支軸(17)の周りに揺動自在に外嵌させ、この軸受け部材(32)から前記牽引部材(22)が下方に脱落するのを防止する受け部材(33)を併設し、後ろ側の搬送用走行体(4)におけるワーク支持台車(8)の前側辺には、前側の搬送用走行体(4)における円形台車(9)から後方に延出する前記牽引部材(22)の延出部(23c,24c)を前方に離脱自在に受ける受け具(43)を設けることが出来る。この構成によれば、牽引部材を円形台車の中心位置に軸支する構成部材として、円形台車を軸支する垂直支軸の軸受け部材を活用することが出来、しかも前記受け部材の併設により、この搬送用走行体が隣り合う搬送用走行体から切り離され且つ円形台車がワーク支持台車から分離されたときにも、牽引部材を円形台車の定位置に保持させることが出来る。更に、このように簡単な構成により牽引部材を円形台車の中心位置に軸支しながら、走行経路中に搬送用走行体があるときには、補助台車を牽引している牽引部材を、当該補助台車が隣接しているワーク支持台車の前側辺の定位置に受け止めることが出来る。従って、円形台車の中心位置から補助台車と連結される遊端までの長さの長い牽引部材の中間位置を、当該牽引部材の水平揺動を許しながら受け止める特別な支持手段を円形台車側に設ける必要が無くなり、全体として構造が簡単になり、安価に実施することが出来る。 Further, the pulling member (22) swings around the vertical support shaft (17) on the bearing member (32) of the circular carriage (9) that supports the vertical support shaft (17) so as to be freely pulled upward. A support member (33) is provided that is freely fitted and prevents the pulling member (22) from dropping downward from the bearing member (32), and supports the workpiece on the rear conveyance traveling body (4). On the front side of the carriage (8), the extension parts (23c, 24c) of the pulling member (22) extending backward from the circular carriage (9) in the front conveyance traveling body (4) are separated forward. A receiving tool (43) that can be freely received can be provided. According to this configuration, as a component member that pivotally supports the traction member at the center position of the circular carriage, the bearing member of the vertical spindle that pivotally supports the circular carriage can be used, and by the addition of the receiving member, The pulling member can be held at a fixed position of the circular carriage also when the conveyance running bodies are separated from the adjacent conveyance traveling bodies and the circular carriage is separated from the work support carriage. Further, when there is a transporting traveling body in the travel path while pivotally supporting the traction member at the center position of the circular carriage with such a simple configuration, the auxiliary carriage pulls the traction member pulling the auxiliary carriage. It can be received at a fixed position on the front side of the adjacent workpiece support carriage. Therefore, a special support means is provided on the side of the circular carriage for receiving the middle position of the long traction member from the center position of the circular trolley to the free end connected to the auxiliary carriage while allowing the traction member to swing horizontally. There is no need, the structure is simplified as a whole, and it can be implemented at low cost.
図１は、一定走行経路に対する搬送用走行体の入り口部と出口部、及び水平ターン経路部を示す一部省略平面図である。FIG. 1 is a partially omitted plan view showing an entrance part and an exit part of a traveling body for conveyance with respect to a constant travel path, and a horizontal turn path part. 図２は、組み立てられた搬送用走行体の一部切欠き平面図である。FIG. 2 is a partially cutaway plan view of the assembled transport traveling body. 図３は、同上搬送用走行体の側面図である。FIG. 3 is a side view of the conveying traveling body. 図４Ａは、ワーク支持台車を示す平面図、図４Ｂは、ワーク支持台車を示す正面図である。FIG. 4A is a plan view showing the workpiece support carriage, and FIG. 4B is a front view showing the workpiece support carriage. 図５Ａは、円形台車の平面図、図５Ｂは、円形台車の正面図である。FIG. 5A is a plan view of the circular carriage, and FIG. 5B is a front view of the circular carriage. 図６Ａは、補助台車を示す平面図、図６Ｂは、補助台車の要部を示す正面図である。FIG. 6A is a plan view showing an auxiliary cart, and FIG. 6B is a front view showing a main part of the auxiliary cart. 図７は、ワーク支持台車とその左右両側に配置された補助台車とを示す一部切欠き正面図である。FIG. 7 is a partially cutaway front view showing the workpiece support carriage and auxiliary carriages arranged on the left and right sides thereof. 図８Ａは、円形台車の中心部の構造を示す一部縦断側面図、図８Ｂは、その平面図である。FIG. 8A is a partially longitudinal side view showing the structure of the central portion of the circular carriage, and FIG. 8B is a plan view thereof. 図９Ａ及び図９Ｂは、円形台車の中心部の構造を示す横断平面図である。9A and 9B are cross-sectional plan views showing the structure of the central portion of the circular carriage. 図１０は、摩擦駆動手段の一例を示す平面図である。FIG. 10 is a plan view showing an example of the friction drive means.
　図１において、１は入り口側直線経路部、２は出口側直線経路部、３は両直線経路部１，２を接続する水平ターン経路部である。４は搬送用走行体であって、入り口側直線経路部１の入り口近くに併設された摩擦駆動手段５により推力を受けて当該入り口側直線経路部１に送り込まれる各搬送用走行体４は、同様に摩擦駆動手段５により推力を受ける後続の搬送用走行体４により後押しされて、当該入り口側直線経路部１の入り口から水平ターン経路部３を経由して出口側直線経路部２の出口に至る一定走行経路上を定速で走行し、当該出口側直線経路部２の出口近くに併設された摩擦駆動手段６により出口側直線経路部２から定速で送り出される。 1, 1 is an entrance-side straight path section, 2 is an exit-side straight path section, and 3 is a horizontal turn path section that connects both straight path sections 1 and 2. 4 is a conveyance traveling body, and each conveyance traveling body 4 that receives thrust by the friction drive means 5 provided near the entrance of the entrance-side straight path portion 1 and is sent to the entrance-side straight path portion 1 Similarly, it is boosted by the subsequent conveying traveling body 4 that receives thrust by the friction drive means 5, and passes from the entrance of the entrance-side straight path portion 1 to the exit of the exit-side straight path portion 2 via the horizontal turn path portion 3. The vehicle travels at a constant speed on a constant travel route, and is fed from the outlet-side straight path portion 2 at a constant speed by the friction drive means 6 provided near the outlet of the outlet-side straight path portion 2.
　図２に示すように、搬送用走行体４は、自動車車体などのワークＷを支持するワーク支持部７を備えたワーク支持台車８、このワーク支持台車８の走行方向の後ろ側に隣接する状態で当該ワーク支持台車８に連結された円形台車９、及びこの円形台車９の後ろ側に連結された左右一対の補助台車１０ａ，１０ｂから構成されている。ワーク支持台車８は、図２～図４に示すように、支持されるワークＷの左右両側に作業床を確保出来る横巾と、当該ワークＷの全長より少し長い程度の長さを有するもので、床面上を走行するための４つの自在車輪１１を備えると共に、長さ方向の前後両端には、円形台車９の円周縁９ａの半径より若干大きい半径で、その中心が当該ワーク支持台車８の前後長さ方向に沿ったセンターライン上に位置する円弧形の凹曲端縁１２，１３が前後対称形に形成されている。 As shown in FIG. 2, the transport traveling body 4 is adjacent to a work support carriage 8 having a work support portion 7 that supports a work W such as an automobile body, and a rear side in the running direction of the work support carriage 8. And a pair of left and right auxiliary carriages 10a and 10b connected to the rear side of the circular carriage 9 and the circular carriage 9 connected to the workpiece support carriage 8. As shown in FIGS. 2 to 4, the work support carriage 8 has a width that can secure a work floor on both the left and right sides of the supported work W, and a length that is slightly longer than the total length of the work W. In addition, four universal wheels 11 for traveling on the floor surface are provided, and at the front and rear ends in the length direction, the work support carriage 8 has a radius slightly larger than the radius of the circular peripheral edge 9a of the circular carriage 9. Arc-shaped concavely curved end edges 12 and 13 located on the center line along the longitudinal direction are formed symmetrically.
　又、ワーク支持台車８の底部には、前側の凹曲端縁１２から前方に延出して、前端が前側の凹曲端縁１２の円弧中心に達すると共に、後ろ側の凹曲端縁１３から後方に延出して、後端が凹曲端縁１３の円弧中心に達する１本の直線状部材１５が取り付けられており、この直線状部材１５の前側の凹曲端縁１２から前方に延出する部分が、連結部材１４となっている。前記直線状部材１５の後端には軸受け部材１６が取り付けられ、この軸受け部材１６に円形台車９が、当該円形台車９の円周縁９ａの中心とワーク支持台車８の後ろ側の凹曲端縁１３の円弧中心とに対して同心状の垂直支軸１７によって、軸支されている。従って円形台車９は、その円周縁９ａがワーク支持台車８の後ろ側の凹曲端縁１３に隣接する状態を保って、ワーク支持台車８に対し垂直支軸１７の周りに自転することが出来る。又、直線状部材１５の前端、即ち、連結部材１４の前端には、前側に隣接する搬送用走行体４の円形台車９を軸支する垂直支軸１７に対して後ろ側より外嵌出来る凹入部１８を備えた係合部材１９が取り付けられている（図８及び図９参照）。 Further, the bottom of the work support carriage 8 extends forward from the front concave end edge 12 so that the front end reaches the center of the arc of the front concave end edge 12 and from the rear concave end edge 13. A single linear member 15 extending rearward and having a rear end reaching the arc center of the concave curved edge 13 is attached, and extends forward from the concave curved edge 12 on the front side of the linear member 15. The part which becomes the connection member 14. A bearing member 16 is attached to the rear end of the linear member 15, and the circular carriage 9 is attached to the bearing member 16 at the center of the circumferential edge 9 a of the circular carriage 9 and the concave curved edge on the rear side of the work support carriage 8. It is supported by a vertical support shaft 17 concentric with the arc center of 13. Accordingly, the circular carriage 9 can rotate about the vertical support shaft 17 with respect to the workpiece support carriage 8 while maintaining the state in which the circumferential edge 9 a is adjacent to the concave curved edge 13 on the rear side of the workpiece support carriage 8. . Further, the front end of the linear member 15, that is, the front end of the connecting member 14 is a recess that can be fitted from the rear side to the vertical support shaft 17 that supports the circular carriage 9 of the transport traveling body 4 adjacent to the front side. An engagement member 19 having an insertion portion 18 is attached (see FIGS. 8 and 9).
　円形台車９は、図２、図３、及び図５に示すように、ワーク支持台車８の横巾より少し小さい直径の円形台の下側に、床面上を走行するための３つの自在車輪２０ａ～２０ｃと、それぞれ垂直支軸によって軸支された前後一対のガイドローラー２１ａ，２１ｂが取り付けられたものである。尚、３つの自在車輪２０ａ～２０ｃの内、２つの自在車輪２０ａ，２０ｂは、図２に示すように、搬送用走行体４が直進する姿勢にあるとき、当該搬送用走行体４のセンターラインに対して、図１の水平ターン経路部３を走行するときの外側になる側で走行方向前後に直列するように配置され、これら前後一対の自在車輪２０ａ，２０ｂに対して前記センターラインの反対側のほぼ対称位置に前後一対のガイドローラー２１ａ，２１ｂが配置され、残りの１つの自在車輪２０ｃは、前後一対のガイドローラー２１ａ，２１ｂの中間位置で且つ当該前後一対のガイドローラー２１ａ，２１ｂを結ぶ仮想線より外側に配置されている。又、前後一対のガイドローラー２１ａ，２１ｂを結ぶ仮想線は、ワーク支持台車８の同一側にある前後一対の自在車輪１１より内側に入った位置にある。 As shown in FIGS. 2, 3, and 5, the circular carriage 9 has three free wheels for traveling on the floor surface below the circular carriage having a diameter slightly smaller than the width of the workpiece support carriage 8. 20a to 20c, and a pair of front and rear guide rollers 21a and 21b supported by vertical support shafts, respectively, are attached. Of the three universal wheels 20a to 20c, the two universal wheels 20a and 20b are arranged such that when the conveyance traveling body 4 is in a straight traveling position, as shown in FIG. On the other hand, it is arranged so as to be in series in the front and rear direction in the traveling direction on the outer side when traveling along the horizontal turn path portion 3 in FIG. 1, and is opposite to the center line with respect to the pair of front and rear universal wheels 20a and 20b. A pair of front and rear guide rollers 21a and 21b are arranged at substantially symmetrical positions on the side, and the remaining one free wheel 20c is located at an intermediate position between the pair of front and rear guide rollers 21a and 21b and the pair of front and rear guide rollers 21a and 21b. It is arranged outside the connecting virtual line. An imaginary line connecting the pair of front and rear guide rollers 21 a and 21 b is located inside the pair of front and rear universal wheels 11 on the same side of the work support carriage 8.
　左右一対の補助台車１０ａ，１０ｂは、円形台車９を軸支する垂直支軸１７の周りに左右揺動自在な牽引部材２２によって牽引される。前記牽引部材２２は、各別に補助台車１０ａ，１０ｂを牽引する２本の牽引部材単体２３，２４から構成されている。これら両牽引部材単体２３，２４は、その前端に固着された共通の軸受け板２５によって一体化され（図８及び図９参照）、当該軸受け板２５から円形台車９の周辺に至る並列部分２３ａ，２４ａと、この並列部分２３ａ，２４ａから左右両側に円形台車９の円周縁９ａに沿って延出する第一延出部２３ｂ，２４ｂと、これら第一延出部２３ｂ，２４ｂから互いに離れるように斜め後方に延出する第二延出部２３ｃ，２４ｃを備えており、これら第二延出部２３ｃ，２４ｃの遊端に補助台車連結板２３ｄ，２４ｄが取り付けられている(図５Ａ参照）。 The pair of left and right auxiliary carts 10 a and 10 b are pulled by a pulling member 22 that can swing left and right around a vertical support shaft 17 that supports the circular cart 9. The pulling member 22 is composed of two pulling member single bodies 23 and 24 that pull the auxiliary carts 10a and 10b separately. These pulling member single bodies 23 and 24 are integrated by a common bearing plate 25 fixed to the front end thereof (see FIGS. 8 and 9), and the parallel portions 23a extending from the bearing plate 25 to the periphery of the circular carriage 9 are provided. 24a, the first extending portions 23b and 24b extending along the circumferential edge 9a of the circular carriage 9 on the left and right sides from the parallel portions 23a and 24a, and the first extending portions 23b and 24b so as to be separated from each other. Second extending portions 23c and 24c extending obliquely rearward are provided, and auxiliary cart connecting plates 23d and 24d are attached to the free ends of the second extending portions 23c and 24c (see FIG. 5A).
　各補助台車１０ａ，１０ｂは、図６に示すように、その底部の四隅近傍に自在車輪２６を備えたもので、前記牽引部材２２における牽引部材単体２３，２４の後端の補助台車連結板２３ｄ，２４ｄと連結するための軸受け部材２７が、前端の巾方向中央位置に突設され、これら軸受け部材２７の上に補助台車連結板２３ｄ，２４ｄを重ねた状態で、垂直ピン２８を両者間にわたって差し込むことにより(図２参照）、各補助台車１０ａ，１０ｂが牽引部材単体２３，２４の後端に、前記垂直ピン２８の周りに相対水平揺動自在に連結され、当該垂直ピン２８を抜き取ることによりその連結を解除することが出来る。又、各補助台車１０ａ，１０ｂの後端近傍の左右両側には、当該補助台車１０ａ，１０ｂの左右両側面から横外側に少し離れた位置で上向きに突出するように係止ピン２９ａ，２９ｂが付設されている。尚、図示のように各補助台車１０ａ，１０ｂは、それぞれ左右対称形に構成されており、牽引部材２２における牽引部材単体２３，２４の後端には、補助台車１０ａ，１０ｂの何れでも連結して使用出来るようにしている。 As shown in FIG. 6, each auxiliary carriage 10a, 10b is provided with a free wheel 26 in the vicinity of the four corners of the bottom, and the auxiliary carriage connecting plate 23d at the rear end of the traction member units 23, 24 in the traction member 22 is provided. , 24d, and a bearing member 27 for projecting at the center in the width direction of the front end, and with the auxiliary carriage coupling plates 23d, 24d overlaid on these bearing members 27, the vertical pin 28 is placed between them. By inserting (see FIG. 2), the auxiliary carts 10a and 10b are connected to the rear ends of the pulling members 23 and 24 so as to be relatively horizontally swingable around the vertical pins 28, and the vertical pins 28 are extracted. It is possible to release the connection. Further, locking pins 29a and 29b are provided on both the left and right sides near the rear ends of the auxiliary carts 10a and 10b so as to protrude upward at positions slightly laterally outward from the left and right side surfaces of the auxiliary carts 10a and 10b. It is attached. As shown in the figure, the auxiliary carts 10a and 10b are symmetrically configured, and the rear ends of the pulling members 23 and 24 of the pulling member 22 are connected to either of the auxiliary carts 10a and 10b. Can be used.
　上記左右一対の補助台車１０ａ，１０ｂが牽引部材２２により円形台車９の後ろ側で牽引されるとき、当該左右一対の補助台車１０ａ，１０ｂは、ワーク支持台車８の横巾とほぼ同一の間隔を隔てて互いに平行状態で追従移動出来るように構成されている。一方、搬送用走行体４のワーク支持台車８には、その平行直線状の左右両側辺に、前記補助台車１０ａ，１０ｂが有する左右一対の係止ピン２９ａ，２９ｂの内、内側に位置する係止ピン２９ａ，２９ｂが、ワーク支持台車８の長さ方向（直線状部材１５の長さ方向）に移動自在に嵌合する下側解放の凹溝部８ａ，８ｂが形成されている(図７参照）。これら両凹溝部８ａ，８ｂは、その前後両端の内、少なくともワーク支持台車８の前進方向端部（前端）が開放されており、前側の搬送用走行体４の左右一対の補助台車１０ａ，１０ｂ間に後ろ側の搬送用走行体４のワーク支持台車８が進入移動したとき、当該ワーク支持台車８の左右両側辺の凹溝部８ａ，８ｂ内に、左右一対の補助台車１０ａ，１０ｂが有する内側の係止ピン２９ａ，２９ｂが自動的に嵌入し、左右一対の補助台車１０ａ，１０ｂの内側辺がワーク支持台車８の左右両側辺に隣接する状態を保って、左右一対の補助台車１０ａ，１０ｂ間をワーク支持台車８が所定位置まで進入移動することが出来る。 When the pair of left and right auxiliary carts 10a and 10b are pulled by the pulling member 22 on the rear side of the circular cart 9, the pair of left and right auxiliary carts 10a and 10b have substantially the same distance as the lateral width of the workpiece support cart 8. It is configured to be able to follow and move in parallel with each other. On the other hand, the work supporting carriage 8 of the transporting traveling body 4 has a relationship that is located on the inner side of the pair of left and right engaging pins 29a, 29b of the auxiliary carriages 10a, 10b on the left and right sides of the parallel straight line. Lower open recessed grooves 8a and 8b are formed in which the stop pins 29a and 29b are movably fitted in the length direction of the work support carriage 8 (the length direction of the linear member 15) (see FIG. 7). ). These concave groove portions 8a and 8b have at least the forward direction end portion (front end) of the work support carriage 8 among the front and rear ends thereof, and a pair of left and right auxiliary carts 10a and 10b of the front conveyance traveling body 4. When the work support carriage 8 of the rear conveyance traveling body 4 enters and moves between the inner sides of the pair of left and right auxiliary carriages 10a and 10b in the recessed groove portions 8a and 8b on the left and right sides of the work support carriage 8. The pair of left and right auxiliary carts 10a and 10b are automatically fitted so that the inner sides of the pair of left and right auxiliary carts 10a and 10b are adjacent to the left and right sides of the work support cart 8. The workpiece support carriage 8 can move to a predetermined position between the two.
　図８及び図９に示すように、円形台車９の中心位置には、上下に貫通する矩形開口部３０が設けられ、この矩形開口部３０の下側を横断するように円形台車９の底部に架設された支持板３１に軸受け部材３２が固着されている。そしてこの軸受け部材３２に前記垂直支軸１７が上方に抜取り自在に挿入支持されており、当該軸受け部材３２から下向きに突出する垂直支軸１７の下半部が、直線状部材１５の後端の軸受け部材１６の軸孔に嵌合している。この軸受け部材１６の軸孔を有する後半部は、直線状部材１５の厚さの上半部に位置し、この軸受け部材１６の後半部の下側に突出している前記垂直支軸１７の下端部に、後ろ側の搬送用走行体４のワーク支持台車８から前方に延出している直線状部材１５（連結部材１４）の前端の係合部材１９の凹入部１８が嵌合する。而して、図８Ａに示すように、当該係合部材１９の凹入部１８を有する前半部は、直線状部材１５（連結部材１４）の厚さの下半部に位置し、前側の搬送用走行体４の直線状部材１５の後端の軸受け部材１６の後半部と、後ろ側の搬送用走行体４の直線状部材１５（連結部材１４）の前端の係合部材１９の前半部とは、直線状部材１５（連結部材１４）の厚さの範囲内で上下に重なった状態になる。そして直線状部材１５の後端の軸受け部材１６と前端の係合部材１９とは、直線状部材１５（連結部材１４）と同一巾に構成され、これら後端の軸受け部材１６と前端の係合部材１９を含めて、直線状部材１５（連結部材１４）の左右両側面が、全長にわたって連続する直線状の摩擦被動面１５ａ，１５ｂを形成している。 As shown in FIGS. 8 and 9, a rectangular opening 30 penetrating vertically is provided at the center of the circular carriage 9, and is formed at the bottom of the circular carriage 9 so as to cross the lower side of the rectangular opening 30. A bearing member 32 is fixed to the support plate 31 that is installed. The vertical support shaft 17 is inserted into and supported by the bearing member 32 so that the vertical support shaft 17 can be pulled out upward. The lower half portion of the vertical support shaft 17 protruding downward from the bearing member 32 is the rear end of the linear member 15. The shaft member is fitted in the shaft hole of the bearing member 16. The rear half portion of the bearing member 16 having the shaft hole is located in the upper half portion of the thickness of the linear member 15, and the lower end portion of the vertical support shaft 17 protruding below the rear half portion of the bearing member 16. The recessed portion 18 of the engaging member 19 at the front end of the linear member 15 (connecting member 14) extending forward from the work support carriage 8 of the rear transfer traveling body 4 is fitted. Thus, as shown in FIG. 8A, the front half portion of the engagement member 19 having the recessed portion 18 is located in the lower half portion of the thickness of the linear member 15 (connecting member 14) and is used for transporting the front side. The rear half of the bearing member 16 at the rear end of the linear member 15 of the traveling body 4 and the front half of the engagement member 19 at the front end of the linear member 15 (connecting member 14) of the rear traveling traveling body 4 Then, the linear member 15 (the connecting member 14) is overlapped vertically within the range of the thickness. The bearing member 16 at the rear end of the linear member 15 and the engaging member 19 at the front end are configured to have the same width as the linear member 15 (the connecting member 14), and the bearing member 16 at the rear end is engaged with the front end. The left and right side surfaces of the linear member 15 (the connecting member 14) including the member 19 form linear friction driven surfaces 15a and 15b that are continuous over the entire length.
　前記牽引部材２２の前端の軸受け板２５は、垂直支軸１７を支持する軸受け部材３２の支持板３１から下向きに突出する下端部に、当該垂直支軸１７の周りに水平揺動自在に嵌合しており、この軸受け板２５が軸受け部材３２から下方に脱落するのを防止する受け部材３３が、前記支持板３１に取付け板３４を介して取り付けられている。従って、図８Ａに示すように、前記牽引部材２２を構成する牽引部材単体２３，２４の並列部分２３ａ，２４ａは、円形台車９の底面と、後ろ側の搬送用走行体４の直線状部材１５の前方に延出する部分、即ち、連結部材１４との間に位置することになる。尚、受け部材３３の軸受け板２５を支持する先端部には、当該軸受け板２５の相対水平揺動を円滑にするための摩擦軽減部材３３ａを装着しておくのが望ましい。 The bearing plate 25 at the front end of the pulling member 22 is fitted to the lower end portion of the bearing member 32 that supports the vertical support shaft 17 so as to protrude downward from the support plate 31 so as to be horizontally swingable around the vertical support shaft 17. A receiving member 33 that prevents the bearing plate 25 from dropping downward from the bearing member 32 is attached to the support plate 31 via an attachment plate 34. Therefore, as shown in FIG. 8A, the parallel portions 23a and 24a of the traction member single bodies 23 and 24 constituting the traction member 22 are formed on the bottom surface of the circular carriage 9 and the linear member 15 of the transport traveling body 4 on the rear side. It is located between the part extended ahead, ie, the connection member 14. FIG. In addition, it is desirable to attach the friction reduction member 33a for smoothing the relative horizontal rocking | fluctuation of the said bearing plate 25 to the front-end | tip part which supports the bearing plate 25 of the receiving member 33. FIG.
　図１～図３及び図５に示すように、直線経路部１，２及び水平ターン経路部３には、各搬送用走行体４の円形台車９が備える前後一対のガイドローラー２１ａ，２１ｂを左右両側から挟んで案内するガイドレール３５が敷設されている。又、入り口側直線経路部１の入り口近傍位置に設けられた摩擦駆動手段５や、出口側直線経路部２の出口近傍位置に設けられた摩擦駆動手段６は、図１０に示すように、前後一対の摩擦駆動ユニット３６，３７から構成されている。各摩擦駆動ユニット３６，３７は、同一構造のものであって、搬送用走行体４のワーク支持台車８が備える直線状部材１５を左右両側から挟む左右一対の摩擦駆動輪３８ａ，３８ｂと、これら両摩擦駆動輪３８ａ，３８ｂを各別に回転駆動するモーター３９ａ，３９ｂを備えている。摩擦駆動輪３８ａ，３８ｂとモーター３９ａ，３９ｂは、それぞれ垂直支軸４０ａ，４０ｂの周りに水平揺動自在に支持された可動フレーム４１ａ，４１ｂに取り付けられ、この可動フレーム４１ａ，４１ｂを圧縮コイルスプリング利用の付勢手段４２ａ，４２ｂにより、各摩擦駆動輪３８ａ，３８ｂが前記直線状部材１５の左右両摩擦被動面１５ａ，１５ｂに圧接する方向に付勢している。従って、これら前後一対の摩擦駆動ユニット３６，３７が備える各摩擦駆動輪３８ａ，３８ｂをモーター３９ａ，３９ｂにより回転駆動して、各摩擦駆動輪３８ａ，３８ｂが圧接する直線状部材１５の左右両摩擦被動面１５ａ，１５ｂを介して、搬送用走行体４を直線状部材１５の長さ方向前方、即ち、円形台車９がワーク支持台車８の直後を追従する前進方向に直進させることが出来る。 As shown in FIGS. 1 to 3 and 5, the straight path portions 1, 2 and the horizontal turn path portion 3 are provided with a pair of front and rear guide rollers 21 a, 21 b included in the circular carriage 9 of each transporting traveling body 4. Guide rails 35 are provided so as to be guided from both sides. Further, as shown in FIG. 10, the friction drive means 5 provided near the entrance of the entrance-side straight path portion 1 and the friction drive means 6 provided near the exit of the exit-side straight path portion 2 It is composed of a pair of friction drive units 36 and 37. The friction drive units 36 and 37 have the same structure, and a pair of left and right friction drive wheels 38a and 38b sandwiching the linear member 15 provided on the work support carriage 8 of the transport traveling body 4 from both left and right sides, and these Motors 39a and 39b for rotating and driving both friction drive wheels 38a and 38b are provided. The friction drive wheels 38a and 38b and the motors 39a and 39b are respectively attached to movable frames 41a and 41b supported around the vertical support shafts 40a and 40b so as to be swingable horizontally. The movable frames 41a and 41b are compressed coil springs. The urging means 42a and 42b for use urge the friction drive wheels 38a and 38b in the direction in which they are pressed against the left and right friction driven surfaces 15a and 15b of the linear member 15. Therefore, the friction drive wheels 38a and 38b provided in the pair of front and rear friction drive units 36 and 37 are rotationally driven by the motors 39a and 39b, and both the left and right frictions of the linear member 15 to which the friction drive wheels 38a and 38b are pressed. Via the driven surfaces 15 a and 15 b, the transporting traveling body 4 can be moved straight forward in the longitudinal direction of the linear member 15, that is, in a forward direction in which the circular carriage 9 follows the work support carriage 8.
　以上のように構成された搬送用走行体４は、図１に示すように、円形台車９がワーク支持台車８の直後を追従する前進向きで、入り口側直線経路部１の入り口から水平ターン経路部３を経由して出口側直線経路部２の出口に至る全走行経路内に、数珠つなぎに連続するように配置される。このとき、各搬送用走行体４の円形台車９は、その前後一対のガイドローラー２１ａ，２１ｂがガイドレール３５に係合することにより、走行経路上での位置と向きが規制され、この円形台車９の中心に位置する垂直支軸１７に、図８Ａ及び図９Ｂに示すように、後ろ側の搬送用走行体４のワーク支持台車８から前方に延出している連結部材１４の先端の係合部材１９の凹入部１８が、当該垂直支軸１７に対して水平揺動自在に嵌合することにより、各搬送用走行体４のワーク支持台車８が、その前後に位置して走行経路の中心線上に位置決めされている前後一対の円形台車９によって、走行経路と平行になる向きに規制される。そして、入り口側直線経路部１の入り口と出口側直線経路部２の出口に位置する搬送用走行体４は、その直線状部材１５が摩擦駆動手段５，６の各摩擦駆動ユニット３６，３７における摩擦駆動輪３８ａ，３８ｂ間に挟まれた状態にある。 As shown in FIG. 1, the transport traveling body 4 configured as described above has a horizontal turn path from the entrance of the entrance-side straight path portion 1 in a forward direction in which the circular carriage 9 follows immediately after the workpiece support carriage 8. It arrange | positions so that it may continue in a daisy chain in the whole traveling path | route which reaches the exit of the exit side linear path | route part 2 via the part 3. FIG. At this time, the circular carriage 9 of each transporting traveling body 4 is regulated in position and orientation on the traveling route by the pair of front and rear guide rollers 21a and 21b engaging with the guide rail 35. As shown in FIGS. 8A and 9B, the vertical support shaft 17 located at the center of 9 is engaged with the front end of the connecting member 14 extending forward from the work supporting carriage 8 of the rear traveling traveling body 4. When the recessed portion 18 of the member 19 is fitted to the vertical support shaft 17 so as to be swingable in the horizontal direction, the work support carriage 8 of each transporting traveling body 4 is positioned in front of and behind the center of the traveling path. The pair of front and rear circular carriages 9 positioned on the line are regulated in a direction parallel to the travel route. And the conveyance traveling body 4 located in the entrance of the entrance side linear path | route part 1 and the exit of the exit side linear path | route part 2 has the linear member 15 in each friction drive unit 36,37 of the friction drive means 5,6. It is in a state of being sandwiched between the friction drive wheels 38a and 38b.
　従って、摩擦駆動手段５，６の各摩擦駆動ユニット３６，３７における摩擦駆動輪３８ａ，３８ｂを所定の前進駆動方向に所定速度で回転駆動すれば、入り口側の摩擦駆動手段５から推力を受ける搬送用走行体４が前進駆動され、その前進力が直前の搬送用走行体４の後端の円形台車９に直線状部材１５を介して伝達され、この後押し作用が出口側直線経路部２の出口までの各搬送用走行体４に作用して、走行経路上の全ての搬送用走行体４が出口側直線経路部２の出口に向かって数珠つなぎの連続状態を保って前進走行することになる。出口側直線経路部２の出口に達した各搬送用走行体４は、摩擦駆動手段６によって所定速度で送り出される。勿論、最後尾の搬送用走行体４の直線状部材１５が入り口側の摩擦駆動手段５から離れたところで、摩擦駆動手段６より後方に位置する全ての搬送用走行体４が停止することになるので、入り口側直線経路部１の入り口に向かって手作業などにより順次搬送用走行体４を、その円形台車９の前後一対のガイドローラー２１ａ，２１ｂをガイドレール３５に係合させると共に直線状部材１５の先端の係合部材１９の凹入部１８を、摩擦駆動手段５によって駆動されて前進している（又は摩擦駆動手段５から直線状部材１５が離れて停止している）最後尾の搬送用走行体４の円形台車９の中心の垂直支軸１７に嵌合させるように、摩擦駆動手段５から推力を受ける位置まで送り込む必要がある。 Therefore, if the friction drive wheels 38a and 38b in the friction drive units 36 and 37 of the friction drive means 5 and 6 are rotationally driven in a predetermined forward drive direction at a predetermined speed, the conveyance receiving thrust from the friction drive means 5 on the entrance side. The traveling body 4 is driven forward, and the forward force is transmitted to the circular carriage 9 at the rear end of the immediately preceding transportation traveling body 4 via the linear member 15, and this boosting action is the outlet of the outlet-side straight path portion 2. It acts on each of the transport traveling bodies 4 until all the transport traveling bodies 4 on the travel path travel forward while maintaining a continuous state of a daisy chain toward the exit of the exit-side straight path portion 2. . Each transporting traveling body 4 that has reached the outlet of the outlet-side straight path portion 2 is sent out at a predetermined speed by the friction drive means 6. Of course, when the linear member 15 of the rearmost transport traveling body 4 is separated from the friction drive means 5 on the entrance side, all the transport travel bodies 4 located behind the friction drive means 6 are stopped. Therefore, the conveyance traveling body 4 is sequentially engaged with the guide rail 35 by the manual operation or the like toward the entrance of the entrance-side straight path portion 1 and the pair of guide rollers 21a and 21b of the circular carriage 9 is engaged with the guide rail 35 and the linear member. 15 for engaging the rear end of the engaging member 19 of the engagement member 19 being driven by the friction drive means 5 (or the linear member 15 is stopped after being separated from the friction drive means 5). It is necessary to feed to a position where thrust is received from the friction drive means 5 so as to be fitted to the vertical support shaft 17 at the center of the circular carriage 9 of the traveling body 4.
　又、入り口側直線経路部１の入り口に向かって手作業などにより順次搬送用走行体４を送り込むとき、直前の搬送用走行体４の左右一対の補助台車１０ａ，１０ｂ間に搬送用走行体４のワーク支持台車８を送り込むことになり、このとき、先に説明したように、直前の搬送用走行体４の左右一対の補助台車１０ａ，１０ｂの内側の係止ピン２９ａ，２９ｂが、送り込む後ろ側の搬送用走行体４におけるワーク支持台車８の左右両側辺の凹溝部８ａ，８ｂ内に前端から嵌入する（図７参照）。そして後ろ側の搬送用走行体４の連結部材１４（直線状部材１５）の先端の凹入部１８が、前側の搬送用走行体４における円形台車９の中心の垂直支軸１７に嵌合した状態では、前側の搬送用走行体４の左右一対の補助台車１０ａ，１０ｂを牽引している牽引部材２２（牽引部材単体２３，２４）の第二延出部２３ｃ，２４ｃが、後ろ側の搬送用走行体４におけるワーク支持台車８の前端左右両側の傾斜前側辺８ｃ，８ｄに隣接するので、このときに当該第二延出部２３ｃ，２４ｃを前方に離脱自在に受ける受け具４３を、ワーク支持台車８の前端左右両側の傾斜前側辺８ｃ，８ｄに突設している。 Further, when the transport traveling body 4 is sequentially sent to the entrance of the entrance-side straight path portion 1 by manual work or the like, the transport traveling body 4 is interposed between the pair of left and right auxiliary carts 10a, 10b of the immediately preceding transport traveling body 4. At this time, as described above, the locking pins 29a and 29b inside the pair of left and right auxiliary carts 10a and 10b of the immediately preceding transport traveling body 4 are fed back. It is inserted from the front end into the recessed groove portions 8a and 8b on both the left and right sides of the work support carriage 8 in the side transport traveling body 4 (see FIG. 7). And the recessed part 18 of the front-end | tip of the connection member 14 (linear member 15) of the conveyance body 4 for back side is fitted in the vertical support shaft 17 of the center of the circular trolley 9 in the conveyance body 4 for front side. Then, the second extending portions 23c and 24c of the pulling member 22 (the pulling member single bodies 23 and 24) pulling the pair of left and right auxiliary carts 10a and 10b of the front transfer traveling body 4 are used for the rear transfer. Since the workpiece 4 is adjacent to the inclined front sides 8c and 8d on the left and right sides of the front end of the workpiece support carriage 8 in the traveling body 4, the receiving member 43 that receives the second extending portions 23c and 24c in a freely detachable manner at this time is supported by the workpiece. The front end of the carriage 8 is provided on the inclined front sides 8c and 8d on both the left and right sides.
　上記のように入り口側直線経路部１の入り口に搬送用走行体４を順次送り込むことにより、入り口側直線経路部１の入り口から水平ターン経路部３を経由して出口側直線経路部２の出口に至る全走行経路内において、搬送用走行体４を数珠つなぎに連続する状態で定速前進走行させることが出来るのであるが、このとき図１に示すように、水平ターン経路部３を含む全走行経路内では、交互に位置するワーク支持台車８と円形台車９とが、ワーク支持台車８の前後両端の凹曲端縁１２，１３に円形台車９の円周縁９ａが常に隣接する状態で走行することになるので、水平ターン経路部３を含む全走行経路において、交互に位置するワーク支持台車８と円形台車９の表面によって形成される、ほぼ面一に連続する帯状の作業床が確保される。従って、各ワーク支持台車８にワーク支持部７を介して支持されるワーク（自動車車体など）Ｗに対する作業を、当該ワークＷの周囲から張り出すようにワーク支持台車８と円形台車９の表面で形成される作業床を利用して安全容易に行えるだけでなく、ワーク支持台車８間の作業者の乗り移りも、円形台車９上を利用して安全に行える。 As described above, the conveyance traveling body 4 is sequentially fed to the entrance of the entrance-side straight path portion 1 so that the exit of the exit-side straight path portion 2 passes from the entrance of the entrance-side straight path portion 1 via the horizontal turn route portion 3. Can be made to travel forward at a constant speed in a continuous state in a continuous manner, but at this time, as shown in FIG. In the travel route, the workpiece support carts 8 and the circular carts 9 that are positioned alternately travel in a state in which the circular peripheral edge 9a of the circular cart 9 is always adjacent to the concave curved edges 12 and 13 at the front and rear ends of the workpiece support cart 8. Therefore, in the entire traveling path including the horizontal turn path part 3, a substantially flat belt-like work floor formed by the surfaces of the work supporting carriage 8 and the circular carriage 9 that are alternately arranged is secured. The Therefore, the work on the work (car body or the like) W supported on each work support carriage 8 via the work support portion 7 is carried out on the surfaces of the work support carriage 8 and the circular carriage 9 so as to protrude from the periphery of the work W. Not only can the work floor be formed safely and easily, but also the transfer of workers between the work support carriages 8 can be carried out safely using the circular carriage 9.
　更に、前側の搬送用走行体４で牽引される左右一対の補助台車１０ａ，１０ｂは、後ろ側の搬送用走行体４のワーク支持台車８の左右両側に沿う状態で走行するので、これら左右一対の補助台車１０ａ，１０ｂのそれぞれに、これら左右一対の補助台車１０ａ，１０ｂの内側に位置するワーク支持台車８に支持されているワークＷに対する取付け部品や必要工具などを積載しておくことにより、各搬送用走行体４のワーク支持台車８に支持されているワークＷに対する部品の取り付け作業などを能率良く行うことが出来る。 Further, the pair of left and right auxiliary carts 10a and 10b pulled by the front transporting traveling body 4 travels along the left and right sides of the work supporting carriage 8 of the rear transporting traveling body 4, so By mounting mounting parts, necessary tools, etc. on the workpiece W supported by the workpiece support carriage 8 located inside the pair of left and right auxiliary carriages 10a, 10b on the auxiliary carriages 10a, 10b, respectively, Parts can be efficiently attached to the workpiece W supported by the workpiece support carriage 8 of each transporting traveling body 4.
　尚、水平ターン経路部３を各搬送用走行体４が走行するとき、ガイドレール３５によって走行経路が規制されている前後２台の円形台車９の中間に位置する各ワーク支持台車８は、その直線状部材１５の前後両端が前後２台の円形台車９の中心の垂直支軸１７の周りに水平相対揺動自在であるから、前後２台の円形台車９の中心を結ぶ線上に位置決めされた状態で走行する。従って、各ワーク支持台車８は、前後２台の円形台車９に対する接続状態、即ち、円形台車９の円周縁９ａがワーク支持台車８の前後両端の凹曲端縁１２，１３に常に隣接する接続状態、を保ちながら走行することが出来る。又、各円形台車９に牽引される左右一対の補助台車１０ａ，１０ｂは、当該円形台車９の中心の垂直支軸１７の周りに水平揺動自在な牽引部材２２を介して、後ろ側の搬送用走行体４のワーク支持台車８と一体に水平相対揺動することになり、しかもこれら補助台車１０ａ，１０ｂの後端部は、係止ピン２９ａ，２９ｂを介してワーク支持台車８の左右両側辺の凹溝部８ａ，８ｂに係合しているので、補助台車１０ａ，１０ｂがワーク支持台車８から外側に離れたり、走行方向前後に相対移動することは無い。従って、水平ターン経路部３を各搬送用走行体４が走行するときも、直線経路部１，２を走行するときと同様に、数珠つなぎに連続する各搬送用走行体４のワーク支持台車８と円形台車９とで形成される帯状連続作業床と、ワーク支持台車８の左右両側の補助台車１０ａ，１０ｂを利用して、ワーク支持台車８上に積載されているワークＷに対する作業を安全且つ能率良く行うことが出来る。 In addition, when each traveling traveling body 4 travels along the horizontal turn path portion 3, each work support carriage 8 positioned in the middle of the two front and rear circular carriages 9 whose travel path is regulated by the guide rail 35 is Since both front and rear ends of the linear member 15 can swing horizontally relative to the vertical support shaft 17 at the center of the two front and rear circular carriages 9, they are positioned on a line connecting the centers of the two front and rear circular carriages 9. Drive in the state. Accordingly, each work support carriage 8 is connected to the two front and rear circular carriages 9, that is, a connection in which the circular peripheral edge 9 a of the circular carriage 9 is always adjacent to the concave and bent edges 12 and 13 at both front and rear ends of the work support carriage 8. It is possible to run while maintaining the state. The pair of left and right auxiliary carts 10 a and 10 b pulled by each circular cart 9 is conveyed rearward via a pulling member 22 that can swing horizontally around the vertical support shaft 17 at the center of the circular cart 9. Accordingly, the rear ends of the auxiliary carriages 10a and 10b are connected to the left and right sides of the work support carriage 8 via the locking pins 29a and 29b. Since the side engaging grooves 8a and 8b are engaged, the auxiliary carriages 10a and 10b are not separated from the work supporting carriage 8 or moved relative to each other in the traveling direction. Accordingly, when the transporting traveling bodies 4 travel along the horizontal turn path portion 3, similarly to when traveling along the straight path portions 1 and 2, the work support carriage 8 of each transporting traveling body 4 that is continuous in a daisy chain. And the continuous carriage floor formed by the circular carriage 9 and the auxiliary carriages 10a and 10b on the left and right sides of the workpiece support carriage 8 can be used to safely work on the workpiece W loaded on the workpiece support carriage 8. It can be done efficiently.
　尚、水平ターン経路部３での後ろ側搬送用走行体４の直線状部材１５（連結部材１４）による前側搬送用走行体４の後押し作用を円滑且つ確実に行わせるために、この水平ターン経路部３を走行する後ろ側搬送用走行体４の直線状部材１５（連結部材１４）と前側搬送用走行体４の直線状部材１５（連結部材１４）との間の、水平ターン経路部３の円弧中心側の挟角が、９０度以上の鈍角になるように、水平ターン経路部３の曲率半径を定めるべきである。 In order to smoothly and reliably perform the pushing action of the front conveyance traveling body 4 by the linear member 15 (connecting member 14) of the rear conveyance traveling body 4 in the horizontal turn path section 3, The horizontal turn path portion 3 between the linear member 15 (connecting member 14) of the rear conveyance traveling body 4 traveling through the section 3 and the linear member 15 (connecting member 14) of the front conveying traveling body 4 is provided. The radius of curvature of the horizontal turn path portion 3 should be determined so that the included angle on the arc center side is an obtuse angle of 90 degrees or more.
　出口側直線経路部２の出口に達して、摩擦駆動手段６から推力を受けなくなった搬送用走行体４は手作業などで当該出口側直線経路部２から引き出すことになるが、このとき、引き出される前側の搬送用走行体４における円形台車９の中心の垂直支軸１７が、後ろ側の搬送用走行体４のワーク支持台車８の前端から延出している連結部材１４の先端の凹入部１８から前方に離脱すると共に、牽引部材２２を介して牽引されている左右一対の補助台車１０ａ，１０ｂは、その後端内側の係止ピン２９ａ，２９ｂが後ろ側の搬送用走行体４のワーク支持台車８における左右両側辺の凹溝部８ａ，８ｂ内を前方に滑動して、当該凹溝部８ａ，８ｂの開放されている前端部から前方に離脱することにより、後ろ側の搬送用走行体４のワーク支持台車８の左右両側から前方に移動して離れることが出来る。又、走行経路中において各搬送用走行体４が数珠つなぎに連続する状態で走行しているときは、左右一対の補助台車１０ａ，１０ｂを牽引している牽引部材２２の各牽引部材単体２３，２４は、その第二延出部２３ｃ，２４ｃにおいて、当該補助台車１０ａ，１０ｂ間に位置しているワーク支持台車８の前端左右両側の傾斜前側辺８ｃ，８ｄに付設の受け具４３によって支持されていて、長尺になる各牽引部材単体２３，２４の中間部の垂れ下がりを防止されているが、上記のように出口側直線経路部２から各搬送用走行体４を引き出すときには、各牽引部材単体２３，２４の第二延出部２３ｃ，２４ｃが、これを支持していた後ろ側のワーク支持台車８の前記受け具４３から前方に離脱することになる。 The transporting traveling body 4 that has reached the outlet of the outlet-side straight path portion 2 and no longer receives the thrust from the friction drive means 6 is pulled out from the outlet-side straight path portion 2 by manual work or the like. The vertical support shaft 17 at the center of the circular carriage 9 in the front transport traveling body 4 is extended from the front end of the work support carriage 8 of the rear transport traveling body 4, and the recessed portion 18 at the tip of the connecting member 14 is extended. The pair of left and right auxiliary carts 10a and 10b that are separated from the front and pulled by the pulling member 22 have a locking pin 29a and 29b on the inner side of the rear end, and a work support cart of the transport traveling body 4 on the rear side. 8 slides forward in the concave groove portions 8a and 8b on both the left and right sides, and disengages forward from the open front end portions of the concave groove portions 8a and 8b, thereby allowing the workpiece of the rear traveling traveling body 4 to move. Support cart Can be from both the left and right sides of the leaves to move forward. Further, when each transport traveling body 4 travels in a continuous manner in the travel route, each pulling member unit 23 of the pulling member 22 pulling the pair of left and right auxiliary carts 10a, 10b, 24 is supported at the second extending portions 23c and 24c by support members 43 attached to the inclined front sides 8c and 8d on the left and right sides of the front end of the work support carriage 8 positioned between the auxiliary carriages 10a and 10b. However, when the pulling traveling members 4 are pulled out from the outlet-side straight path portion 2 as described above, each pulling member is pulled out. The second extending portions 23c and 24c of the single bodies 23 and 24 are detached forward from the receiving tool 43 of the rear work support carriage 8 that has supported the second extending portions 23c and 24c.
　出口側直線経路部２の出口から引き出した各搬送用走行体４は、円形台車９の中心の垂直支軸１７を、矩形開口部３０を通じて上方に引き抜くことにより、ワーク支持台車８と円形台車９とを互いに分離することが出来る。そして、円形台車９から延出している牽引部材２２の補助台車連結板２３ｄ，２４ｄと補助台車１０ａ，１０ｂの軸受け部材２７とを連結している垂直ピン２８を上方に引く抜くことにより、円形台車９から補助台車１０ａ，１０ｂを分離することが出来る。このとき牽引部材２２は、円形台車９の中心の軸受け部材３２と受け部材３３とを介して当該円形台車９の中心部に連結された状態にあるが、必要に応じて受け部材３３を支持板３１から取り外すことにより、円形台車９から牽引部材２２を取り外すことも可能である。 Each conveyance traveling body 4 pulled out from the outlet of the outlet-side straight path portion 2 draws the vertical support shaft 17 at the center of the circular carriage 9 upward through the rectangular opening 30, so that the workpiece support carriage 8 and the circular carriage 9 are pulled out. Can be separated from each other. Then, by pulling upward the vertical pin 28 that connects the auxiliary carriage connecting plates 23d, 24d of the pulling member 22 extending from the circular carriage 9 and the bearing member 27 of the auxiliary carriages 10a, 10b, the circular carriage is pulled out. 9 can separate auxiliary carts 10a and 10b. At this time, the pulling member 22 is in a state of being connected to the center of the circular carriage 9 via the bearing member 32 and the receiving member 33 at the center of the circular carriage 9, but the receiving member 33 is supported on the support plate as necessary. It is also possible to remove the pulling member 22 from the circular carriage 9 by removing it from 31.
　尚、ワーク支持台車８の左右両側に補助台車１０ａ，１０ｂを配設したが、左右何れか片側にのみ補助台車を配設しても良い。又、搬送用走行体４を推進させる駆動手段として、ワーク支持台車８の側辺を利用して摩擦駆動する摩擦駆動手段を利用する場合や、摩擦駆動手段以外の駆動手段を利用するときは、摩擦被動面１５ａ，１５ｂを有する直線状部材１５は不要であり、ワーク支持台車８から前方に延出する連結部材１４と、円形台車９を垂直支軸１７で軸支するためにワーク支持台車８から後方に延出する軸受け部材とを別々に設けることも出来る。更に、ワーク支持台車８の後端側に円形台車９を垂直支軸１７により軸支したが、ワーク支持台車８の前端側に、左右一対の補助台車１０ａ，１０ｂを牽引部材２２により牽引する円形台車９を垂直支軸１７により軸支することも可能である。この場合には、ワーク支持台車８の後端から後方に連結部材１４を延出させることになる。又、直線経路部２，３において搬送用走行体４を案内する手段として、直線状部材１５を左右両側から挟むガイドローラーを走行経路側に設けた構成や、当該直線状部材１５の下側に垂直軸周りに回転自在に軸支したガイドローラーを走行経路側の溝形ガイドレールで挟むような構成を利用することも出来る。 In addition, although the auxiliary carts 10a and 10b are disposed on both the left and right sides of the workpiece support cart 8, the auxiliary cart may be disposed on only one of the left and right sides. In addition, when using a friction drive unit that drives friction using the side of the work support carriage 8 as a drive unit for propelling the conveyance traveling body 4, or when using a drive unit other than the friction drive unit, The linear member 15 having the friction driven surfaces 15 a and 15 b is not necessary, and the work support carriage 8 is used to support the connecting member 14 extending forward from the work support carriage 8 and the circular carriage 9 by the vertical support shaft 17. It is also possible to provide a bearing member extending rearward from the rear. Further, the circular carriage 9 is pivotally supported by the vertical support shaft 17 on the rear end side of the workpiece support carriage 8, but the pair of left and right auxiliary carriages 10 a and 10 b are pulled by the pulling member 22 on the front end side of the workpiece support carriage 8. It is also possible to support the cart 9 by the vertical support shaft 17. In this case, the connecting member 14 is extended backward from the rear end of the work support carriage 8. Further, as a means for guiding the traveling body 4 for conveyance in the straight path portions 2 and 3, a configuration in which a guide roller that sandwiches the linear member 15 from the left and right sides is provided on the travel path side, or on the lower side of the straight member 15 A configuration in which a guide roller rotatably supported around a vertical axis is sandwiched between groove-shaped guide rails on the travel path side can also be used.
　本発明の台車利用の搬送装置は、一定走行経路に沿って帯状に連続する作業床を形成することの出来る搬送装置として、自動車組立てラインなどに活用することが出来る。 The conveyance device using a carriage of the present invention can be used in an automobile assembly line or the like as a conveyance device capable of forming a continuous work floor in a strip shape along a certain travel route.
　１　　入り口側直線経路部
　２　　出口側直線経路部
　３　　水平ターン経路部
　４　　搬送用走行体
　５，６　　摩擦駆動手段
　８　　ワーク支持台車
　８ａ，８ｂ　　凹溝部
　９　　円形台車
　９ａ　　円周縁
　１０ａ，１０ｂ　　補助台車
　１２，１３　　凹曲端縁
　１４　　連結部材
　１５　　直線状部材
　１５ａ，１５ｂ　　摩擦被動面
　１６，２７，３２　　軸受け部材
　１７　　垂直支軸
　１８　　凹入部
　１９　　係合部材
　２１ａ，２１ｂ　　ガイドローラー
　２２　　牽引部材
　２３，２４　　牽引部材単体
　２５　　軸受け板
　２８　　垂直ピン
　２９ａ，２９ｂ　　係止ピン
　３０　　矩形開口部
　３１　　支持板
　３３　　受け部材
　３３ａ　　摩擦軽減部材
　３５　　ガイドレール
　３６，３７　　摩擦駆動ユニット
　４３　　受け具
　Ｗ　　ワーク
  DESCRIPTION OF SYMBOLS 1 Entrance side linear path part 2 Outlet side linear path part 3 Horizontal turn path part 4 Transporting traveling body 5,6 Friction drive means 8 Work support carriage 8a, 8b Groove part 9 Circular carriage 9a Circular periphery 10a, 10b Auxiliary carriage 12, DESCRIPTION OF SYMBOLS 13 Concave end edge 14 Connection member 15 Linear member 15a, 15b Friction driven surface 16, 27, 32 Bearing member 17 Vertical support shaft 18 Recessed part 19 Engagement member 21a, 21b Guide roller 22 Pulling member 23, 24 Traction member single-piece | unit 25 Bearing plate 28 Vertical pin 29a, 29b Locking pin 30 Rectangular opening 31 Support plate 33 Receiving member 33a Friction reducing member 35 Guide rail 36, 37 Friction drive unit 43 Receiving tool W Workpiece

Claims (6)

  1. 　一定走行経路上を走行する搬送用走行体が、ワーク支持台車と円形台車から構成され、前記円形台車は、その円周縁がワーク支持台車の走行方向前後の一端に設けられた一端凹曲端縁に隣接する状態で、当該円周縁と同心状の垂直支軸の周りに自転可能にワーク支持台車に連結され、ワーク支持台車の走行方向前後の他端には、前記一端凹曲端縁と前後対称形の他端凹曲端縁が設けられ、走行経路上において前後に隣接する搬送用走行体間では、一方の搬送用走行体における円形台車の円周縁が他方の搬送用走行体におけるワーク支持台車の他端凹曲端縁に隣接して、各搬送用走行体のワーク支持台車が、その前後両側に隣接する円形台車を介して連続する状態で走行出来るように構成された台車利用の搬送装置において、前記ワーク支持台車には、端部が当該ワーク支持台車の他端凹曲端縁の円弧中心に位置する連結部材が取り付けられ、この連結部材の前記端部には、この端部側に隣接する搬送用走行体における円形台車の前記垂直支軸に対し、当該垂直支軸の周りに相対回転自在に嵌合可能な凹入部が設けられ、走行経路中の水平ターン経路部には、前記円形台車に設けられたガイドローラーを介して当該円形台車のみを案内するガイドレールが敷設されている、台車利用の搬送装置。 The transport traveling body that travels on a fixed travel path is composed of a work support carriage and a circular carriage, and the circular carriage has a concave end edge that is provided at one end of the work support carriage at the front and rear of the traveling direction. Is connected to a work support carriage so as to be able to rotate about a vertical support shaft concentric with the circumference of the circle, and the other end of the work support carriage in the traveling direction is connected to the one end of the concave curved edge and the front and rear. A symmetrical other end concave curved edge is provided, and between the transport traveling bodies adjacent to each other on the travel path, the circular peripheral edge of the circular carriage in one transport travel body supports the workpiece in the other transport travel body. Next to the other end concave curved edge of the carriage, the carriage using the carriage is constructed so that the work supporting carriage of each conveyance body can run continuously through the circular carriage adjacent to both the front and rear sides. In the apparatus, the workpiece support A connecting member whose end is located at the center of the arc of the concave end of the other end of the work support carriage is attached to the car, and the end of the connecting member is connected to the end of the transport for transportation. A recessed portion that can be rotatably fitted around the vertical support shaft is provided with respect to the vertical support shaft of the circular carriage in the body, and a horizontal turn path portion in the traveling path is provided in the circular carriage. A carriage using a carriage, in which a guide rail that guides only the circular carriage via a guide roller is laid.
  2. 　前記連結部材は、一端に前記凹入部を備えると共に他端に前記垂直支軸を備えた１本の直線状部材から構成され、この直線状部材には、その全長にわたって連続する摩擦被動面が設けられ、走行経路中の直線経路部には、前記直線状部材の摩擦被動面に圧接する摩擦駆動輪を備えた摩擦駆動手段が配設されている、請求項１に記載の台車利用の搬送装置。 The connecting member is composed of one linear member having the recessed portion at one end and the vertical support shaft at the other end, and the linear member is provided with a friction driven surface continuous over the entire length. 2. The carriage-use transfer device according to claim 1, wherein friction drive means including a friction drive wheel that presses against a friction driven surface of the linear member is disposed in a straight path portion in the travel path. .
  3. 　前記垂直支軸は、円形台車の上方に抜取り自在に構成され、この垂直支軸の抜取りにより、ワーク支持台車と円形台車とを分離出来るように構成された、請求項１に記載の台車利用の搬送装置。 The cart according to claim 1, wherein the vertical support shaft is configured to be freely detachable above the circular cart, and the workpiece support cart and the circular cart can be separated by extracting the vertical support shaft. Conveying device.
  4. 　各搬送用走行体の前記円形台車は、ワーク支持台車に対して走行方向の後ろ側に配置され、この円形台車には、その中心の前記垂直支軸の周りに揺動自在で後方に延出する牽引部材が設けられ、この牽引部材に、後ろ側の搬送用走行体におけるワーク支持台車の横側部に配置された補助台車が連結され、この補助台車が、前側の搬送用走行体により前記牽引部材を介して牽引されるように構成された、請求項１に記載の台車利用の搬送装置。 The circular carriage of each conveyance traveling body is arranged on the rear side in the running direction with respect to the workpiece support carriage, and the circular carriage is swingable around the vertical support shaft at the center thereof and extends backward. A pulling member is provided, and an auxiliary carriage disposed on the lateral side portion of the work supporting carriage in the rear transfer traveling body is connected to the pulling member, and the auxiliary carriage is The transport apparatus using a cart according to claim 1, wherein the transport apparatus is configured to be pulled through a pulling member.
  5. 　前記牽引部材は、その遊端が前記補助台車の前端部に垂直ピンの周りに水平揺動自在に連結され、この補助台車のワーク支持台車に隣接する内側辺には上下向きの係止ピンが設けられ、ワーク支持台車には、前記係止ピンが上下向きに嵌合する凹溝部が、当該ワーク支持台車の横側辺に沿って、少なくとも当該ワーク支持台車の前側辺側が開放する状態で設けられている、請求項４に記載の台車利用の搬送装置。 The free end of the pulling member is connected to the front end of the auxiliary carriage so as to be horizontally swingable around a vertical pin, and a vertical locking pin is provided on the inner side adjacent to the work support carriage of the auxiliary carriage. The work support carriage is provided with a concave groove portion into which the locking pin fits in the vertical direction, with at least the front side of the work support carriage being open along the lateral side of the work support carriage. The trolley | bogie utilization conveying apparatus of Claim 4 currently provided.
  6. 　前記牽引部材は、前記垂直支軸を上方に抜取り自在に支持する円形台車の軸受け部材に当該垂直支軸の周りに揺動自在に外嵌し、この軸受け部材から前記牽引部材が下方に脱落するのを防止する受け部材が併設され、後ろ側の搬送用走行体におけるワーク支持台車の前側辺には、前側の搬送用走行体における円形台車から後方に延出する前記牽引部材の延出部を前方に離脱自在に受ける受け具が設けられている、請求項４に記載の台車利用の搬送装置。 The traction member is externally fitted to a bearing member of a circular carriage that supports the vertical support shaft so that the vertical support shaft can be pulled upward. The traction member drops downward from the bearing member. A receiving member for preventing the above is provided, and on the front side of the work supporting carriage in the rear transfer traveling body, an extension portion of the traction member extending rearward from the circular carriage in the front transfer traveling body is provided. The carriage-use conveyance device according to claim 4, further comprising a receiving member that is detachably received forward.
PCT/JP2015/052798 2014-02-28 2015-02-02 Trolley-utilizing conveying device WO2015129389A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112016019910-3A BR112016019910B1 (en) 2014-02-28 2015-02-02 Transport device that uses car
MX2016011087A MX2016011087A (en) 2014-02-28 2015-02-02 Trolley-utilizing conveying device.

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JP2014038686A JP6240002B2 (en) 2014-02-28 2014-02-28 Conveyor using trolley
JP2014-038686 2014-02-28

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CN110127567A (en) * 2018-02-09 2019-08-16 本田技研工业株式会社 Transport operation equipment

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JPS61278459A (en) * 1985-05-29 1986-12-09 ペル・エリツク・ウア−レン Conveyor line for carrying heavy article
JP2013107731A (en) * 2011-11-21 2013-06-06 Nakanishi Metal Works Co Ltd Conveyer apparatus
WO2013168706A1 (en) * 2012-05-11 2013-11-14 本田技研工業株式会社 Vehicle body component mounting system
WO2013187222A1 (en) * 2012-06-13 2013-12-19 株式会社ダイフク Conveyance device capable of frictional driving

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Publication number Priority date Publication date Assignee Title
JPS61278459A (en) * 1985-05-29 1986-12-09 ペル・エリツク・ウア−レン Conveyor line for carrying heavy article
JP2013107731A (en) * 2011-11-21 2013-06-06 Nakanishi Metal Works Co Ltd Conveyer apparatus
WO2013168706A1 (en) * 2012-05-11 2013-11-14 本田技研工業株式会社 Vehicle body component mounting system
WO2013187222A1 (en) * 2012-06-13 2013-12-19 株式会社ダイフク Conveyance device capable of frictional driving

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110127567A (en) * 2018-02-09 2019-08-16 本田技研工业株式会社 Transport operation equipment
CN110127567B (en) * 2018-02-09 2020-11-03 本田技研工业株式会社 Transport operation equipment

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BR112016019910A8 (en) 2021-04-06
MX2016011087A (en) 2016-11-25
BR112016019910A2 (en) 2017-08-15
JP6240002B2 (en) 2017-11-29
BR112016019910B1 (en) 2022-05-17
JP2015160740A (en) 2015-09-07

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