JP4714455B2 - Aerial work platform - Google Patents

Description

  The present invention relates to an aerial work vehicle used for work at a high place such as loading, maintenance, inspection, and cleaning of luggage on an aircraft or a ship.

The aerial work vehicle has a container that can be moved up and down relative to the carriage, a platform connected to the container and movable in the width direction of the container, and a canopy connected to the container and covering the platform, for example, In order to mount in-flight meals, fixtures, baggage, and the like in an aircraft, there is a platform and canopy that can be extended toward the aircraft (see, for example, Patent Document 1).
Japanese Patent No. 355,020

  On the other hand, since the doors attached to the airframe usually open outward from the airframe, it sometimes obstructs when the canopy is pulled out from the container toward the loading port. In view of this, the above document proposes a structure in which the tip of the canopy is raised when the canopy is pulled out from the container. As means for raising and lowering the canopy, an actuator controlled by electricity or hydraulic pressure is used. Is the mainstream.

  However, if an elevating means that does not use electricity, hydraulic pressure, or the like is proposed in place of the actuator, fuel efficiency can be improved.

  In the conventional canopy, measures are taken when the canopy interferes with an obstacle in the vertical direction of the container, but measures when the canopy interferes with an obstacle in the width direction of the container are taken. Nothing is given. For this reason, when the canopy withdrawn from the container interferes with an obstacle in the width direction of the container, the work of positioning the aerial work vehicle on the airframe becomes complicated, and in the worst case, the canopy cannot be used.

On the other hand, there is a platform that can be moved along the width direction of the container in order to prevent interference with the door (for example, see Patent Document 2).
JP 2000-272403 A

  However, also in this case, in the conventional canopy, when the platform is moved, an area that cannot be covered with the canopy is generated near the mounting opening. For this reason, when working in heavy rain, etc., it is considered that the operator and luggage get wet, or rain enters the aircraft from the loading port, so the operator must take measures as necessary. There is the complexity of not becoming.

  The problem to be solved by the present invention has been made in view of these facts, and is to propose an aerial work vehicle that can be used without the canopy interfering with an obstacle.

  According to a first aspect of the present invention, there is provided a canopy having a container that can be moved up and down with respect to a carriage, a platform connected to the container, and a canopy connected to the container and covering the platform. Is provided with a turning element that pivotally supports the container with respect to the container.

  The invention according to claim 2 is that, in claim 1, the swiveling element has a moving body that is held so as to be movable along the container axis, and connects the moving body and the canopy. It is a feature.

  The invention according to claim 3 is that, in claim 1, the swivel element has a canopy support that holds the canopy in a movable manner, and connects the canopy support and the roof of the container. It is characterized by.

  According to a fourth aspect of the present invention, there is provided a guide member according to the third aspect, wherein the guide member extends around the swivel element and is held by the container, and a pedestal member that holds the canopy support movably along the guide member. It is characterized by providing.

  According to a fifth aspect of the present invention, in any one of the first to third aspects, the guide member that extends around the turning element and is held by the container, and the canopy can be moved along the guide member. And a pedestal member to be held.

  A sixth aspect of the invention is characterized in that in any one of the first to fifth aspects, an actuator for turning the canopy with respect to the container is provided.

  A seventh aspect of the invention is characterized in that in any one of the first to sixth aspects, a canopy raising / lowering means for raising and lowering the canopy with respect to the container is provided.

  The invention described in claim 8 is characterized in that in claim 3 or 4, an actuator for rotating the canopy support relative to the container is provided.

  A ninth aspect of the present invention includes the interlocking mechanism according to any one of the second to fifth aspects, wherein the platform is movable in the width direction of the container and interlocks the platform and the canopy or the canopy support. It is characterized by this.

The invention according to claim 10 is provided with an actuator for raising and lowering the canopy support relative to the container according to any one of claims 3, 4 , 8 or at least claim 9 quoting claim 3. It is a feature.

  An eleventh aspect of the invention is characterized in that in any one of the first to tenth aspects, an auxiliary canopy that is pivotably held at the tip of the canopy is provided.

  A twelfth aspect of the present invention is that, in the eleventh aspect, when the canopy is made of a wire or a bar and is rotated between the canopy and the auxiliary canopy, it is generated between the auxiliary canopy and a target position having a carry-in entrance and the like. A link mechanism for correcting the opening is provided.

  According to a thirteenth aspect of the present invention, there is provided an aerial work vehicle including a container that is attached to the carriage so as to be movable up and down, a platform connected to the container, and a canopy that is connected to the container and covers the platform. And a canopy support body that is movably held along the canopy, and the canopy support body and the canopy form a cam mechanism that moves the canopy up and down with respect to the canopy support body. Is.

  A fourteenth aspect of the present invention is the vehicle according to any one of the first to eleventh aspects, wherein the carriage includes a drive source such as an engine and a cab.

  According to the present invention, by providing the swivel element that pivotally supports the canopy with respect to the container, the canopy can be used with a simple configuration without interfering with an obstacle in the width direction of the container. Further, in the present invention, since the platform can be rotated in accordance with the movement in the width direction of the container, the platform can be covered in the vicinity of the loading / unloading port such as the loading port of the aircraft. .

  In particular, in the present invention, it is preferable to include a guide member that extends around the swivel element and is held by the container, and a base member that holds the canopy movably along the guide member. In this case, since the canopy is separately held at a position different from the turning member, a stable turning operation can be ensured. In addition, since the load applied to the turning element is reduced, the durability can be improved without reinforcing the turning element itself.

  Further, in the present invention, the canopy can be swung manually with respect to the container. However, if an actuator for swiveling the canopy with respect to the container is provided, fine adjustment during canopy turning is facilitated and workability is also improved. improves.

  Further, in the present invention, if a canopy lifting / lowering means for lifting the canopy with respect to the container is provided, the canopy can be used without interfering with an obstacle in the height direction of the container.

  On the other hand, in the present invention, if the swivel element has a moving body that is held so as to be movable along the container axis and connects the moving body and the canopy, the canopy is swung with respect to the container. At the same time, since the container can be taken in and out along the container axis, it is possible to reliably supplement the cover area contracted by turning the canopy up to the tip of the platform.

  Similarly, in the present invention, even if the swivel element has a canopy support that holds the canopy so as to be movable, and connects the canopy support and the roof portion of the container, the canopy is connected to the container. Can be turned in and out along the container axis. In this case, the canopy may be held by a pedestal member that moves along the guide member held in the container, but when the canopy support is held by the pedestal member, the canopy is held by the pedestal member and Similar effects can be obtained. Also in this case, the canopy support can be turned manually. However, if an actuator for turning the canopy support with respect to the container is provided, the same effect as when the canopy is turned by the actuator can be obtained. It is done.

  By the way, when the platform is also movable in the width direction of the container, a canopy can be automatically set even if the platform moves in the width direction of the container by providing an interlocking mechanism that links the platform and the canopy or the canopy support. Or since a canopy support body can be made to follow a platform, workability can be improved with a simple configuration.

  Furthermore, even when the canopy is held movably by the canopy support, the canopy can be used without interfering with obstacles in the height direction of the container by providing an actuator that raises and lowers the canopy support relative to the container. In addition, fine adjustment during lifting and lowering of the canopy is facilitated and workability is improved.

  Moreover, in this invention, it is preferable to provide the auxiliary canopy hold | maintained rotatably at the front-end | tip of a canopy. According to such a configuration, even when an opening occurs between the auxiliary canopy and a target having a carry-in entrance or the like when the canopy is turned, the platform is closed by further turning the auxiliary canopy with respect to the canopy. Can be reliably covered. In particular, in this case, a link mechanism is provided between the canopy and the auxiliary canopy to correct the opening generated between the auxiliary canopy and the target position having the carry-in port or the like when the canopy is made of a wire or a bar. For example, the opening of the auxiliary canopy can be automatically closed between the auxiliary canopy and the target without using a manual operation or an actuator, so that workability is improved.

  The present invention also includes a canopy carrying surface that holds the canopy movably along the container axis, and the canopy is moved between the canopy carrying surface and the canopy with respect to the canopy carrying surface according to the movement of the canopy. A cam mechanism that moves up and down is provided. According to such a configuration, electricity or hydraulic pressure required for driving the actuator or the like when the canopy is moved up and down with respect to the container becomes unnecessary, so that it is possible to improve power consumption efficiency and fuel consumption. In addition, since an actuator or the like is not necessary, weight can be reduced.

  Furthermore, in the present invention, if a drive source such as an engine and a driver's cab are provided integrally or separately with respect to the cart to which the container is attached, the mobility as an aerial work vehicle is improved. Improvement can be achieved.

  Hereinafter, an aerial work vehicle according to the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a lift truck 1 which is an embodiment of the present invention used for loading luggage, in-flight meals, etc. in an aircraft 10. The lift truck 1 is used for loading luggage or the like. The work state at the time is shown. FIG. 2 is a plan view of FIG. 1 in which a later-described canopy 7 is omitted.

  In FIGS. 1 and 2, reference numeral 100 denotes an aircraft body (target), and a loading port 110 for loading luggage, in-flight meal, and the like is above the main wing 120. The mounting opening 110 is attached with an open door 130 that opens to the left.

  The lift truck 1 is a self-propelled aerial work vehicle in which a vehicle main body (cart) 2 is integrally provided with a driver's cab 2a and a driving source such as an engine (not shown). A carrier frame 4 attached via the mechanism 3, a box-shaped container 5 movable along the carrier frame 4, a platform 6 connected to the container 5, and a roof portion 5 a of the container 5 to cover the platform 5. And a canopy 7 connected to

  The platform 6 is connected to a guide rail 5b provided on both sides of the container 5 through a bracket 6a so as to be movable up and down, and the platform 6b is held by the connection platform 6b so as to be movable along the width direction Y of the container. The main platform 6c is composed of two sub platforms 6d and 6e that are held by the main platform 6c so as to be movable along the container axis X. The two sub platforms 6d and 6e have different widths from each other. Yes.

  In this embodiment, the auxiliary plate 8 is detachably spanned between the main platform 6c and the mounting port 110. Further, in this embodiment, the left and right open / close doors 5c of the container 5 are combined such that three doors are slidable, and a protective wall is formed by pulling each door out to the mounting port 110.

  3 to 5 are plan views for explaining the operation of the canopy 7 disposed on the roof portion 5a of the container 5, FIG. 6 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. It is BB sectional drawing. 3 to 5, only the frame of the canopy 7 is shown for convenience.

  As shown in FIGS. 3 to 5, the canopy 7 has a substantially trapezoidal shape by notching each corner of the end 7e, and moves along the container axis X to the end 7e via a universal joint (swivel element) 10. It is connected to a possible slider (moving body) 11. The slider 11 moves between the two rails 12 provided on the roof portion 5a of the container 5 along the container axis X. For example, as shown in FIG. 6, a roller 11a provided on the slider 11 is provided. To move along the rail 12. The slider 11 is fixed to the container 5 via an actuator 13 that expands and contracts by electric control or hydraulic control. However, the slider 11 may be moved manually without using the actuator 13. In this case, the movement of the slider 11 is not limited to the movement by the roller 11a and the rail 12, but may be slid by bringing them into contact with each other.

  Further, an auxiliary canopy 8 is provided at the tip of the canopy 7 so that the canopy 7 can be swung freely. Specifically, as shown in FIG. 7, the canopy 7 is pivotally attached to a center frame 7 a via a pin P, and a shock-absorbing member 8 a for reducing contact with the airframe 100 is provided at the tip thereof. . Further, a link mechanism composed of a metallic bar 9 is provided between the auxiliary canopy 8 and the slider 11. Specifically, one end 9a of the bar 9 is fixed to the slider 11 so as to be rotatable, and the other end 9b is fixed to the auxiliary canopy 8 so as to be rotatable. According to such a link mechanism, even if the canopy 7 is swung from the state of FIG. 8A where the canopy 7 is not swung around the universal joint 10, the pin P that pivotally supports the auxiliary canopy 8 and the other end 9b of the metallic bar are As shown in FIG. 8B, since the parallel state is maintained, when the canopy 7 is turned, the opening generated between the auxiliary canopy 8 and the airframe 100 having the mounting port 110 and the like is automatically performed. It can be corrected.

  Next, FIGS. 9A to 9C are front views corresponding to FIGS. 3 to 5, respectively, and FIG. 10 is a cross-sectional view taken along the line C-C in FIG.

  In FIG. 9, reference numeral 14 denotes a rail (guide member) that extends around the universal joint 10 and is held by the container 5, and holds the base member 15 movably along the rail 14. Specifically, as shown in FIG. 10, the pedestal member 15 includes a first roller 15 a that rolls on the support surface 14 a of the rail 14, and a second roller that rolls on the back surface (back surface in FIG. 9) 14 b of the rail 14. The rail 14 is movably held by the roller 15b. The pedestal member 15 is held on the rail 14 via an actuator 16 that expands and contracts by electric control or hydraulic control. Accordingly, the base member 15 can move along the rail 14 as shown in FIG.

  Further, rollers 17 for holding the canopy 7 are provided on both upper sides of the base member 15. If the roller 17 has a flat contact surface with the canopy 7, it is necessary to separately provide means for suppressing the canopy 7 from turning with respect to the base member 15. In this embodiment, the roller 17 A canopy carrying surface 17a for carrying the canopy 7 and a turning restricting portion 17b for restricting the turning of the canopy 7 are integrated. Thereby, the canopy 7 can move along the container axis X with respect to the pedestal member 15 while turning along the rail 14 together with the pedestal member 15.

  The pedestal member 15 is held on the rail 14 via the actuator 16, but may be moved manually. Further, the movement of the rail 14 and the pedestal member 15 and the movement of the pedestal member 15 and the canopy 7 are not limited to those using rollers and rails, but may be slid by contacting each other.

  According to such a configuration, the canopy 7 is disposed on the roof portion 5a of the container 5 as shown in FIG. 4 through the slider 11 that moves along the container axis by the actuator 13, as shown in FIG. It can be pulled out toward the aircraft 100. Then, after the canopy 7 is pulled out, as shown in FIG. 5, if the pedestal member 15 is moved along the rail 14 by the actuator 16, and the slider 11 is swung around the universal joint 10, as a result The canopy 7 can be swung with respect to the container 5.

  By the way, in this embodiment, in order to prevent the canopy 7 from interfering with an obstacle in the height direction Z of the container 5, there is means for raising and lowering the canopy 7 relative to the container 5.

  FIGS. 12A and 12B are side views corresponding to FIGS. 3 and 4, respectively, and FIG. 12C is an enlarged view of the main part of FIG.

  As shown in FIG. 12 (c), on the back surface of the canopy 7 that contacts the canopy carrying surface 17a, there is a contact surface f1 extending from the end 7e side of the canopy 7, and the tip of the canopy 7 connected to the contact surface f1. A step surface f2 that is lifted toward the surface and a contact surface f3 that is connected to the step surface f2 and extends toward the tip of the canopy 7 and that is higher than the contact surface f1 are formed. Thus, a cam mechanism Cm is formed between the canopy carrying surface 17a and the canopy 7 with the contact surfaces f1, f2, and f3 as cam surfaces and the carrying surface 17a of the roller 17 as a cam follower. According to such a configuration, as shown in FIGS. 12A and 12B, the canopy 7 can be raised and lowered with respect to the canopy carrying surface 17 a in accordance with the movement of the canopy 7.

  In addition, FIG. 13 is a principal part front view which shows the 2nd form of this invention. In this embodiment, the base member 15 is provided with a cover member 15c that covers the turning restricting portion 17b provided integrally with the roller 17 and prevents the canopy 7 from being lifted. Other configurations are the same as the first embodiment. Are the same.

  FIG. 14 is a third embodiment of the present invention, and FIGS. 14A to 14C are front views corresponding to FIGS. In addition, in this form, the same part as the 1st and 2nd form has the same code | symbol, and abbreviate | omits the description.

  In this embodiment, an actuator 18 is employed as means for raising and lowering the canopy 7 with respect to the container 5, and a second pedestal member 19 provided with a roller 17 for holding the canopy 7 is provided separately. The second pedestal member 19 is held and fixed by the pedestal member 15 via the actuator 18. Also with this configuration, the canopy 7 can be raised and lowered with respect to the container 5.

  FIGS. 15 to 17 are each a plan view for explaining the canopy operation of the fourth embodiment of the present invention, FIG. 18 is a side view corresponding to FIG. 15, and FIG. FIG. 20 (a) and 20 (b) are side views for explaining the operation of an actuator 28, which will be described later, from the DD cross section of FIG. 15, and FIGS. The front view and side view explaining the operation | movement of the below-mentioned actuator 26 corresponding to (b) are shown. In the present embodiment, the same parts as those in the other embodiments are denoted by the same reference numerals and the description thereof is omitted.

  In this embodiment, the canopy 7 is movably held by a guide frame (canopy support) 21. The guide frame 21 includes two guide portions 21a arranged in parallel along the container axis, and an end portion 21e connected across the guide portion 21a. The end 21e is connected to the end 7e of the canopy via an actuator 23. Yes. Accordingly, the canopy 7 can move along the guide portion 21a of the guide frame 21. The canopy 7 is fixed to the guide frame 21 via an actuator 23 that expands and contracts by electric control or hydraulic control. However, the canopy 7 may be moved manually without using the actuator 23. Further, the movement of the guide frame 21 is not limited to that by the roller and the rail, but may be slid by bringing them into contact with each other.

  Further, the end 21e of the guide frame 21 is pivotally connected to the roof portion 5a of the container 5 through the universal joint 20. As shown in FIG. 19, the universal joint 20 includes a first joint element 20 a that is rotatably attached to the distal end 21 e of the guide frame 21 around the axis of the actuator 23, and a roof 5 a of the container 5. The second joint element 20b is rotatably mounted around the axis, and the two joint portions 20a and 20b are rotatably mounted by a pin member 20c.

  15-17, the code | symbol 24 is the 1st sliding rail (guide member) extended around the universal joint 20, Comprising: As shown in FIG. 20, the actuator 28 standingly arranged from the roof part 5a of the container 5 is shown. And a joint member 29. The guide beam 21c spanned between the guide portions 21a of the guide frame 21 has a second slide rail (pedestal member) 25 held by the slide rail 24 so as to be movable along the slide rail 24. Is fixed. Further, as shown in FIGS. 21 and 22, a connecting portion 21d hangs down integrally from the guide beam 21c, and an end protrusion 26a of the actuator 26 fixed to the container 5 is inserted into a long hole n1 provided in the connecting portion 21d. Are slidably fitted. As a result, the guide frame 21 can move along the slide rails 24 and 25 as shown in FIG. 17 due to the expansion and contraction of the actuator 26, and as shown in FIGS. The guide frame 21 can be raised and lowered with respect to the container 5.

  According to such a configuration, the canopy 7 can be pulled out from the state accommodated in the guide frame 21 toward the body 100 as shown in FIG. 16 by the actuator 23 as shown in FIG. After the canopy 7 is pulled out, as shown in FIG. 17, the guide frame 21 is swung around the universal joint 20 by moving the guide frame 21 along the slide rails 24 and 25 by the actuator 26. As a result, the canopy 7 can be turned with respect to the container 5. Further, according to such a configuration, when the actuator 28 is extended from the position of FIG. 20A to the position of 20B, the guide frame 21 at the position of FIG. 21 has the actuator 26 along the long hole n1. Since it can move freely, it can rise to the position of FIG. 22 without interfering with the actuator 26.

  Each of FIGS. 23 to 25 is a plan view for explaining the canopy operation according to the fifth embodiment of the present invention, and FIG. 26 is a side view corresponding to FIG. In the present embodiment, the same parts as those in the other embodiments are denoted by the same reference numerals and the description thereof is omitted.

  In this embodiment, the platform 6 moves in the width direction of the container 5 together with the slide frame 30 provided on the front surface (the loading port 110 side) of the container 5. Specifically, as shown in FIG. 26, the slide frame 30 has rollers 30a and 30b that roll on rails 5d and 5e provided on the front surface of the container 5, and the guide rail 30c of the slide frame 30 includes A bracket 6a of the platform 6 is attached so as to be movable up and down. Further, the platform 6 is obtained by notching the corner of the sub-platform 6e and providing an auxiliary platform 6f at the notch, and the auxiliary platform 6f can be inserted into and removed from the notch by rotation. ing.

  In this embodiment, an interlocking mechanism IL that interlocks the platform 6 and the guide frame 21 is provided to rotate the canopy 7. This interlocking mechanism IL mechanically connects between the guide frame 21 and the slide frame 30 by loosely fitting a pin member (projection) 31 provided in the slide frame 30 and a long hole n2 provided in the guide frame 21. Connected.

  Here, FIGS. 27A and 27B are EE sectional views of FIG. 23 corresponding to FIGS. 23 and 26, respectively, and FIG. 28 is a schematic perspective view corresponding to FIG.

  In the interlocking mechanism IL in the fifth embodiment, the long hole n2 spans the guide beam 21e separately from the guide beam 21c between the guide portions 21a of the guide frame 21, and forms a space below the guide beam 21e. It is formed on the lower surface of the case body 21f. The pin member 31 is fitted with a loose fit so that it can move with a predetermined degree of freedom with respect to the long hole n2, and has a retaining portion 32 at the top thereof. The pin member 31 is slidably attached along a pin holding hole n3 of a sleeve body 34 provided in the slide frame 30 through a through hole formed in the slide frame 30. A retaining part 33 is provided.

  Thereby, even if the slide frame 30 moves along the width direction of the container 5 by the actuator 36 attached to the container 5, the pin member 31 held by the slide frame 30 is provided on the turning guide frame 21. Since the long hole n2 can escape from the position shown in FIG. 26A to the position shown in FIG. 26B, the guide frame 21 turns following the slide frame 30 without being distorted by the escape amount. As a result, the canopy 7 automatically follows the platform 6 even when the platform 6a moves in the width direction of the container 5. Further, as shown in FIG. 26, since the pin member 31 can be pulled out from the position shown in FIG. 26 (a) to the position shown in FIG. The guide frame 21 rises with respect to the container 5 without being distorted by the amount of the drawer. As a result, the canopy 7 also rises with respect to the container 5.

  According to such a configuration, the canopy 7 can be pulled out from the state accommodated in the guide frame 21 toward the body 100 as shown in FIG. 24 by the actuator 23 as shown in FIG. Then, after pulling out the canopy 7, as shown in FIG. 25, if the guide frame 21 is turned around the universal joint 20 by moving the slide frame 30 by the actuator 36, as a result, with respect to the container 5. The canopy 7 can be turned. Further, according to such a configuration, when the actuator 28 is extended, the movement of the pin member 31 at the position of FIG. 26A is restricted by the retaining portions 32, 33 when the guide frame 21 is extended (FIG. 26B). The position can be raised to the position shown in FIG. 22 without interfering with the slide frame 30.

  The pin member 31 may be provided not only on the slide frame 30 but also directly from the platform 6. In this case, the pin member 31 is also applied to the platform 6 according to the first to fourth embodiments without the slide frame 30. it can. Further, the interlocking mechanism IL for turning the canopy 7 is not limited to the one composed of the long hole n1 and the projection 32 loosely fitted in the long hole n1, but for example, a rotating body such as a roller provided on the slide frame 30. Thus, an interlocking mechanism that interlocks the canopy 7 or the guide frame 21 and the slide frame 30 may be used.

  FIG. 29 is a plan view of a sixth embodiment in which another interlocking mechanism IL is adopted as the first embodiment, and the same parts as those of the above-described embodiments are denoted by the same reference numerals and description thereof is omitted.

  In this embodiment, a roller that is rotatably attached to the slide frame 30 is used as the interlocking mechanism IL. Specifically, as shown in FIG. 29, two arms 35 extending toward the mounting port 110 are provided on the slide frame 30, and a guide member 14 (see FIG. 9) is provided between these arms 35. A base member 15 (see FIG. 9) provided with a roller 17 is directly stretched and fixed without being used.

  According to this configuration, the canopy 7 connected to the slider 11 via the universal joint 10 is supported on the slide frame 30 via the canopy carrying surface 17a so as to be able to be taken in and out of the container 5, and the canopy 7 is moved up and down by the cam mechanism. Can be achieved by Cm. In addition, if a play (clearance) is set in the interval W between the two turning restricting portions 17b so that the canopy 7 can turn by a predetermined amount, the canopy 7 is linked to the slide frame 30 within the play range and the container 5 As a result, the canopy 7 can pivot around the universal joint 10 with respect to the container 5. As a modification of the sixth embodiment, instead of the pedestal member 15 disclosed as the first embodiment in FIG. 9, the pedestal member 15 including the roller 17 disclosed as the second embodiment in FIG. 13 is diverted. Furthermore, it is possible to divert the pedestal members 15 and 19 with the actuator 18 disclosed as the third embodiment in FIG.

  Further, FIG. 30 is a plan view showing the seventh embodiment, and the same parts as those of the above-described embodiments are denoted by the same reference numerals and the description thereof is omitted.

  This embodiment is a modification of the first embodiment, and as shown in FIG. 30, the canopy 7 and the slide 11 are integrally connected, and a predetermined play (clearance) is provided between the slide 11 and the rail 12. Then, an integrated body of the canopy 7 and the slide 11 is connected to the actuator 13 through the universal joint 10. Also in this case, the movement of the slider 11 is not limited to the movement by the roller 11a and the rail 12, but may be slid by bringing them into contact with each other.

  In the first embodiment, when the canopy 7 is raised and lowered with respect to the container 5, the rail 14 can be raised and lowered.

  31 and 32 are side views of the main part showing an example of means for raising and lowering the canopy 7 with respect to the container 5 by the rail 14 from the outside of the container 5, and FIG. 33 is a plan view showing FIG. 31 from the direction D1. It is. In the following description, such means will be described as being employed in the first embodiment, and the same portions will be denoted by the same reference numerals and description thereof will be omitted.

  31 and 32, reference numeral 40 denotes a swing frame that is swingably held on the guide rail 5 b of the container 5 and fixed to each end of the rail 14. The swing frame 40 includes a horizontal portion 41 for fixing the rail 14, a swing base 42 provided at one end of the horizontal portion 41, a vertical portion 43 depending from the swing base 42, and the vertical portion 43. This is a right-angled triangular frame comprising an inclined portion 44 that diagonally connects the end portion with the horizontal portion 41. The swing frame 40 has a swing base 42 disposed between an extension 5b1 extending from the guide rail 5b and a bracket 5f welded to the guide rail 5b, and is integrally connected by a pin member P1.

  The swing frame 40 includes an actuator 45 that is swingably attached to the inclined portion 44 and the guide rail 5b via pin members P2 and P3, respectively. Therefore, the swing frame 40 swings upward with respect to the guide rail 5b around the pin member P1 due to the extension of the actuator 45, and swings downward with respect to the guide rail 5b around the pin member P1 due to contraction of the actuator 45. Move. In this embodiment, a buffer member B made of a stainless steel plate or the like is provided at each contact portion between the vertical portion 43 and the guide rail front surface 5bf.

  According to such a configuration, in the state where the actuator 45 is not extended, the canopy 7 contacts the front surface 5bf of the guide rail 5b with the vertical portion 43 of the swing frame 40 as shown in FIG. Although it is held in a horizontal state, when the actuator 45 is extended, the swing frame 40 swings upward and the canopy 7 can be raised with respect to the container 5 as shown in FIG. When the canopy 7 is lowered, the swing frame 40 can be returned to the position shown in FIG. 31 by contracting the actuator 45.

  In the above-described configuration in which the swing frame 40 is adopted as the first configuration, the cam mechanism Cm may be omitted if it is not necessary to raise and lower the canopy 7 greatly. Further, when the swing frame 40 is employed in the third embodiment, the actuator 18 may be omitted if it is not necessary to raise and lower the canopy 7 greatly. Further, the frame 40 may be configured to slide along the guide rail 5b instead of swinging with respect to the container 5.

  As described above, according to the present invention, the universal joints 10 and 20 for pivotally supporting the canopy 7 with respect to the container 5 are provided, so that the canopy 7 can be mounted in the width direction of the container 5 with a simple configuration. It can be used without interfering with obstacles such as the door 130. Further, in the present invention, the platform 6 can be swung in accordance with the movement of the platform 6 in the width direction of the container 5, so that the platform 6 can be covered in the vicinity of the mounting port 110 of the machine body.

  In particular, in the present invention, a guide member 14 extending around the universal joint 10 (20) and held by the container 5 and a base member 15 for holding the canopy 7 movably along the guide member 14 are provided. , 19, the canopy 7 is separately held at a position different from the universal joint 10 (20), so that a stable turning operation can be ensured. In addition, since the load applied to the universal joint 10 (20) is reduced, the durability can be improved without reinforcing the universal joint 10 (20) itself.

  In the present invention, the canopy 7 can be swung manually with respect to the container 5, but by providing the actuators 13 and 23 for swiveling the canopy 7 with respect to the container 5, Subtle adjustment is easy and workability is improved.

  In the present invention, if canopy lifting means Cm, 18 and 28 for raising and lowering the canopy 7 with respect to the container 5 are provided, the canopy 7 interferes with obstacles such as the body door 130 in the height direction of the container 5. Can be used without

  On the other hand, in the present invention, if the universal joint 10 has a slider 11 that is movably held along the container axis and connects the slider 11 and the canopy 7, the canopy 7 is connected to the container 5. Since it can be swung in and out along the container axis, the covered area contracted by swiveling the canopy 7 can be reliably compensated up to the tip of the platform 6.

  Similarly, in the present invention, even if the universal joint 20 has a guide frame 21 that holds the canopy 7 so as to be movable, and connects the guide frame 21 and the roof portion 5a of the container 5, the canopy 7 Can be swung with respect to the container 5 and simultaneously moved in and out along the container axis. In this case, the canopy may be held by the base members 15 and 19 that move along the guide member 14 held by the container 5, but the guide frame 21 is moved by the base member 25 that moves along the guide member 24. Even if held, the same effect as when the canopy 7 is held by the base members 15 and 19 can be obtained. Also in this case, the canopy support 21 can be turned manually. However, if the actuator 26 for turning the guide frame 21 with respect to the container 5 is provided, the canopy 7 is turned by the actuator 16. Similar effects can be obtained.

  Further, when the canopy 7 is held movably by the guide frame 21 and the platform 6 is also movable in the width direction of the container 5, the protrusion 31 or the protrusion 31 is loosened on the platform 6 and the guide frame 21, respectively. If the long hole n2 to be fitted is provided and the platform 6 and the guide frame 21 are mechanically connected to each other, the canopy 7 automatically follows the platform 6 even if the platform 6 moves in the width direction of the container 5. Therefore, workability can be improved with a simple configuration.

  Further, even when the canopy 7 is held movably by the guide frame 21, if the actuator 28 for raising and lowering the guide frame 21 relative to the container 5 is provided, the canopy 7 can be moved in the height direction of the container 5 by the machine door 130 or the like. In addition to being able to be used without interfering with other obstacles, fine adjustment during lifting and lowering of the canopy 7 is facilitated and workability is improved.

  Further, in the present invention, when the auxiliary canopy 8 that is pivotably held at the tip of the canopy 7 is provided, when the canopy 7 is rotated, the auxiliary canopy 8 and the airframe 100 having the mounting port 110 are interposed. Even if the opening occurs, the platform 6 can be reliably covered by closing the opening by further turning the auxiliary canopy 8 with respect to the canopy 7. In particular, in this case, a link mechanism is provided between the canopy 7 and the auxiliary canopy 8 and includes a wire or a bar 9 to correct an opening generated between the auxiliary canopy 8 and the fuselage 100 when the canopy 7 is turned. For example, the opening between the auxiliary canopy 8 and the airframe 100 can be automatically closed without manual operation or using an actuator or the like, so that workability is improved.

  Further, the present invention includes a canopy carrying surface 17a that holds the canopy 7 so as to be movable along the container axis, and the canopy 7 is moved between the canopy carrying surface 17a and the canopy 7 according to the movement of the canopy 7. If the cam mechanism Cm for raising and lowering the canopy with respect to the canopy carrying surface 17a is provided, electricity or hydraulic pressure required for driving the actuator or the like when raising or lowering the canopy 7 with respect to the container 5 becomes unnecessary. It is possible to improve the fuel economy and the like. In addition, since an actuator or the like is not necessary, weight can be reduced.

  Furthermore, in the present invention, if a drive source such as an engine and the cab 2a are provided integrally or separately from the carriage 2 to which the container 5 is attached, the mobility as an aerial work vehicle is improved. Workability can be improved.

  The above description is merely an example of the present invention, and various modifications can be made. For example, the platform 6 and the canopy 7 may not expand and contract with respect to the container 5. Further, the platform 6 may extend and contract only toward the mounting port 130 and may not move along the width direction of the container 5. Further, the container elevating mechanism is not limited to the cross link type, and various types can be employed. In addition, the elements, members, mechanisms, and the like employed in the respective forms can be variously replaced or combined between the forms depending on the application.

FIG. 1 is a side view showing a lift truck that is an embodiment of the present invention and is used for loading luggage, in-flight meal, and the like in an aircraft. It is a top view of FIG. In the same form, it is a top view explaining operation | movement of the canopy arrange | positioned at the roof part of a container. In the same form, it is another top view explaining operation | movement of the canopy arrange | positioned at the roof part of a container. In the same form, it is another top view explaining operation | movement of the canopy arrange | positioned at the roof part of a container. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. In the same form, it is a geometric diagram explaining operation | movement of the link mechanism which connects a canopy and an auxiliary canopy, and a slider. (A)-(c) is a front view corresponding to FIGS. 3-5, respectively. It is CC sectional drawing of Fig.9 (a). In the form, it is a basic diagram explaining operation | movement of the base member which moves along a guide member. (A), (b) is a side view corresponding to FIG.3 and FIG.4, respectively, (c) is a principal part enlarged view of (b). It is a principal part front view which shows the 2nd form of this invention. (A)-(c) is a 3rd form of this invention, Comprising: It is a front view corresponding to FIGS. It is a 4th form of the present invention, and is a top view explaining the canopy operation. It is another top view explaining canopy operation in the form. It is another top view explaining the canopy operation in the form. In the same form, it is a side view corresponding to FIG. It is a principal part enlarged view which shows the universal joint in the same form. (A), (b) is a side view explaining the operation | movement of the actuator in the form from the DD cross section of FIG. 15, respectively. (A), (b) respectively shows the front view and side view explaining operation | movement of an actuator corresponding to Fig.20 (a). (A), (b) respectively shows the front view and side view explaining operation | movement of an actuator corresponding to FIG.20 (b). It is a 5th form of the present invention, and is a top view explaining canopy operation. It is another top view explaining canopy operation in the form. It is another top view explaining the canopy operation in the form. FIG. 24 is a side view corresponding to FIG. 23. (A), (b) is EE sectional drawing of FIG. 23 corresponding to FIG. 23, 26, respectively. FIG. 27 is a schematic perspective view corresponding to FIG. 26. It is a top view which shows the 6th form of this invention. It is a top view which shows the 7th form of this invention. In the 1st form of this invention, it is a principal part side view which shows an example of the means to raise / lower a canopy with respect to a container with a rail from the outer side of a container. It is another principal part side view which shows the form. It is a top view which shows FIG. 31 from the direction D1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lift truck 2 Vehicle main body 3 Lifting mechanism 4 Cargo frame 5 Container 6 Platform 7 Canopy 8 Auxiliary canopy 9 Link bar
10 Universal joint
11 Slider
13 Actuator
14 Guide members
15 Base member
16 Actuator
17 Laura
17a Canopy carrying surface
17b Turn control part
18 Actuator
20 Universal joint
21 Guide frame
23 Actuator
24, 25 Slide rail
28 Actuator
30 Slide frame
31 Pin member
40 Swing frame
41 Horizontal section
42 Swing base
43 Vertical section
44 Slope
45 Actuator
100 aircraft
110 loading port
120 Wings
130 Opening and closing door Cm Cam mechanism f1, f2, f3 Contact surface n2 Long hole

Claims (14)

In an aerial work vehicle having a container that can be moved up and down with respect to a carriage, a platform connected to the container, and a canopy connected to the container and covering the platform,
An aerial work vehicle comprising a turning element for pivotally supporting a canopy with respect to a container.   The aerial work vehicle according to claim 1, wherein the turning element has a moving body that is held so as to be movable along the container axis, and connects the moving body and the canopy.   The aerial work vehicle according to claim 1, wherein the swivel element has a canopy support that holds the canopy in a movable manner, and connects the canopy support and the roof of the container. .   The high member according to claim 3, further comprising a guide member extending around the swivel element and held by the container, and a pedestal member holding the canopy support movably along the guide member. Work vehicle.   4. A guide member extending around the swivel element and held by a container, and a pedestal member holding the canopy movably along the guide member. The aerial work vehicle described in the paragraph.   The aerial work vehicle according to any one of claims 1 to 5, further comprising an actuator for rotating the canopy with respect to the container.   The aerial work vehicle according to any one of claims 1 to 6, further comprising canopy elevating means for elevating and lowering the canopy with respect to the container.   The aerial work vehicle according to claim 3 or 4, further comprising an actuator for rotating the canopy support relative to the container.   The high-altitude work according to any one of claims 2 to 5, wherein the platform is movable in the width direction of the container, and includes an interlocking mechanism that interlocks the platform and a canopy or a canopy support. car. The aerial work vehicle according to any one of claims 3, 4 , and 8, or at least a reference to claim 3, further comprising an actuator for raising and lowering the canopy support relative to the container.   The aerial work vehicle according to any one of claims 1 to 10, further comprising an auxiliary canopy that is rotatably held at a tip of the canopy.   A link mechanism is provided between the canopy and the auxiliary canopy, which is composed of a wire or a bar and corrects an opening generated between the auxiliary canopy and a target position having a carry-in entrance when the canopy is turned. The aerial work vehicle according to claim 11. In an aerial work vehicle having a container that can be moved up and down with respect to a carriage, a platform connected to the container, and a canopy connected to the container and covering the platform,
A canopy support that holds the canopy movably along the container axis, and a cam mechanism that moves the canopy up and down relative to the canopy support according to the movement of the canopy between the canopy support and the canopy. An aerial work vehicle characterized by being provided.   The aerial work vehicle according to any one of claims 1 to 13, wherein the carriage includes a drive source such as an engine and a cab.

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