JP2001114410A - Conveyor roller unit and conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyor roller unit whose roller body is easily changeable, and a conveyor. SOLUTION: The conveyor roller unit 9 is so designed that the roller body 8 is rotatably disposed in a hollow frame 7. Unit carriers 3a to 3c each have a plurality of unit mounting openings 4. The conveyor roller unit 9 is fitted in each unit mounting opening 4. The conveyor roller unit 9 is removable from the unit mounting opening 4. When rotated, the roller body 8 of the conveyor roller unit 9 conveys an object of conveyance that is placed in contact therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a transport roller unit and a transport device for transporting a transported object by rotation.

[0002]

2. Description of the Related Art As a conventional transfer apparatus, for example, a transfer apparatus described in Japanese Utility Model Publication No. 49-36714 is known.

[0003] In the transfer device described in Japanese Utility Model Publication No. 49-36714, a plurality of spindles are bridged between a pair of frames, and a roller body for transporting a conveyed object by rotation is mounted on these spindles. It is rotatably mounted on multiple axes. Also,
These roller bodies are attached at positions separated along the longitudinal direction of the support shaft. Further, annular locking rings inserted through and attached to the support shafts are attached to both ends in the axial direction of each roller body that is axially mounted on each support shaft. In addition, each roller body is positioned and fixed in the axial direction of the support shaft by locking rings attached to both axial ends of each roller body.

[0004]

However, in the transfer device described in Japanese Utility Model Publication No. 49-36714, if the roller body attached to the support shaft is damaged, first, the damaged roller body is used. The support shaft on which is mounted is removed from the pair of frames. Next, one of the locking rings attached to both ends of the roller body is removed, and the damaged roller body is removed from the support shaft. Then, the damaged roller body is replaced with a functioning roller body, and the roller body is attached to the support shaft again. Next, the locking ring is inserted through the support shaft, and the locking ring is attached to one end of the roller body, and the roller body is rotatably positioned and fixed, and the roller body is further mounted on the shaft. Both ends of the support shaft must be attached to a pair of frames.

Therefore, when the roller body is damaged, there is a problem that it is not easy to replace the damaged roller body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a transport roller unit and a transport device that can easily replace a roller body.

[0007]

According to a first aspect of the present invention, there is provided a transport roller unit which is mounted on a plurality of unit mounting openings which are located at an interval from the transport start end to the transport end and open. A frame body detachably fitted to each of the unit mounting openings, and a roller body rotatably disposed in the frame bodies and transporting a conveyed object by rotation.

In this configuration, the frame body in which the roller body is rotatably disposed is fitted into each of the plurality of unit mounting openings, and the roller body is positioned from the transport start end side toward the transport end side. Let it. As a result, the conveyed article is conveyed from the conveyance start side to the conveyance end side along the rollers by the rotation of the respective roller bodies. Further, when any one of the frames is damaged, the frame is detachably fitted to the unit mounting opening. And it is only necessary to attach a frame in which a normal roller body is disposed to the unit mounting opening, so that the roller body can be easily replaced.

According to a second aspect of the present invention, there is provided the transport roller unit according to the first aspect, wherein the frame is formed in a substantially cylindrical shape in which the frame is detachably fitted to the unit mounting opening and at least one of which has an opening. A base formed on the base, wherein the base is fitted to the unit mounting opening, the base is fitted to the unit mounting opening, and the locking unit is provided to determine a constant amount of protrusion of the roller body; The roller body is rotatably disposed in the base with at least a part thereof protruding from the opening of the base.

In this configuration, when the frame in which the roller body is rotatably disposed in the base is fitted into the unit mounting opening, the frame is locked in the unit mounting opening by the locking portion. You. At this time, the protrusion amount of the roller body disposed in the frame fitted into each unit mounting opening is fixed. Therefore, it is not necessary to adjust the protrusion amount of the roller body after the frame body is fitted in each unit mounting opening. For this reason, the mounting operation when the frame body in which the roller body is disposed is mounted to the plurality of unit mounting openings is facilitated.

According to a third aspect of the present invention, there is provided the transport roller unit according to the second aspect, wherein the frame is formed below the engaging portion of the base of the frame and formed in the unit mounting opening. In a state in which the base is fitted, a fitting portion for positioning and fixing the base together with the locking portion is provided.

In this configuration, a frame in which a roller body is rotatably disposed is fitted into the unit mounting opening, so that a locking portion formed at the base of the frame, The base of the frame is positioned and fixed by a fitting portion formed below the locking portion of the base of the frame. Therefore, detachment of the frame from the unit mounting opening is prevented. Further, fluctuation of the roller body and the frame body when the conveyed object is carried by the rotation of the roller body is prevented.

According to a fourth aspect of the present invention, there is provided the transport roller unit according to the second or third aspect, wherein the roller body is rotatably mounted in the base by burning the base. is there.

In this configuration, after the roller body is disposed in the base of the frame, the base of the frame is subjected to a burning process, so that the roller is rotatably mounted in the base. For this reason, the manufacturing process when the roller body is rotatably mounted on the base of the frame body is facilitated, and the manufacturing cost is reduced.

According to a fifth aspect of the present invention, in the transport roller unit according to any one of the second to fourth aspects, the locking portion of the frame is formed by bending.

In this configuration, the frame is bent and formed to form a locking portion. Therefore, as compared with the case where the locking portion is formed separately from the frame body and the locking portion is attached to the frame body by welding, the manufacturing process when forming the locking portion on the frame body is simplified. And manufacturing costs are reduced.

According to a sixth aspect of the present invention, there is provided a transport device, comprising: a unit holder having a plurality of unit mounting openings which are spaced from the transport start end side to the transport end side; and a plurality of unit mounting openings of the unit holder. A plurality of transport roller units according to any one of claims 1 to 5, which are detachably fitted.

In this configuration, the transport roller unit according to any one of claims 1 to 5, wherein the roller body is rotatably disposed in the frame, is fitted into each of the plurality of unit mounting openings of the unit holder. Then, the same operation and effect as those of the transport roller unit according to any one of claims 1 to 5 can be obtained.

According to a seventh aspect of the present invention, in the transporting device of the sixth aspect, the plurality of unit mounting openings are formed in a dispersed state on a unit holding body formed in a substantially flat plate shape. In a state in which the transport roller units are respectively fitted in the plurality of unit mounting openings, the roller body of each of the transport roller units is disposed so as to be rotatable in the circumferential direction along the transport direction in which the transported object is transported. These are formed in different shapes.

In this configuration, the roller unit is rotatably disposed in the base of the frame at each of the unit mounting openings formed in a dispersed state on the substantially flat unit holder. The roller units are fitted respectively. At this time, the roller bodies of the respective transport roller units are disposed so as to be rotatable in the circumferential direction along the transport direction in which the transported article is transported by these roller bodies. Therefore, the conveyed article is reliably conveyed from the conveyance end side to the conveyance end side by the rotation of each roller body. For this reason, the work of transporting the transported material becomes more accurate.

According to an eighth aspect of the present invention, there is provided the transport device according to the sixth or seventh aspect, wherein the unit holder is formed in a flat plate shape, and the transported object transported from an upstream side of the unit holder is transported. The distance between the unit mounting openings located on one side in the width direction, which is the downstream linear direction, is shorter than the distance between the unit mounting openings located on the other side.

In this configuration, the conveyed object conveyed from the upstream side of the flat unit holder is conveyed along one side in the width direction which is the downstream linear direction of the conveyed object. Is done. Therefore, the separation distance between the unit mounting openings located on one side of the unit holder is
By being formed shorter than the separation distance between the unit mounting openings located on the other side, the transport direction of the transport object is appropriately corrected toward the transport direction in which the transport object is to be transported by this unit holder. .

According to a ninth aspect of the present invention, in the transporting device according to the sixth or seventh aspect, the unit holder is formed in an arc shape in a plan view, and the space between the unit mounting openings located on the inner diameter side of the unit holder is provided. Are formed longer than the separation distance between the unit mounting openings located on the outer diameter side of the unit holder.

In this configuration, the distance in the radial direction between the unit mounting openings located on the inner diameter side of the unit holder is formed longer than the distance between the unit mounting openings located on the outer diameter side. . For this reason, a relatively large number of unit mounting openings are formed on the outer diameter side of the unit holding body as compared with the inner diameter side, and the transport roller unit is fitted into each of the unit mounting openings. The radial separation distance between the roller bodies of the transport roller units on the side is reduced. Therefore, when the transported object is transported by the unit holder, the transported material is transported intensively along the outer diameter side of the unit holder. The transport direction of the transported object is easily corrected toward. Further, a unit mounting opening is formed in the entire unit holder at a distance on the outer diameter side, and the manufacturing cost is reduced as compared with a case where a transport roller unit is mounted in each of the plurality of unit mounting openings.

According to a tenth aspect of the present invention, there is provided the transport device according to the ninth aspect, wherein the plurality of unit mounting openings have a radial separation distance between the unit mounting openings located on the inner diameter side of the unit holder. It is formed longer than the radial separation distance between the unit mounting openings located on the outer diameter side of the unit holder.

In this configuration, the radial distance between the unit mounting openings located on the inner diameter side of the unit holder is longer than the radial distance between the unit mounting openings located on the outer diameter side. Have been. For this reason, a relatively large number of unit mounting openings are formed on the outer diameter side of the unit holding body as compared with the inner diameter side, and the transport roller unit is fitted into each of the unit mounting openings. The radial separation distance between the roller bodies of the transport roller units on the side is reduced. Therefore, when the conveyed object is conveyed by the unit holder, the conveyed object is concentrated and conveyed along the outer diameter side of the unit holder. The roller body prevents the transport object from sliding in the radial direction, and the transport direction of the transport object is easily corrected in the transport direction in which the transport is to be performed by the unit holder. Further, a plurality of unit mounting openings are formed in the entire unit holding body at a radial distance on the outer diameter side, and the manufacturing cost is reduced as compared with a case where a transport roller unit is mounted in each of the plurality of unit mounting openings. Be reduced.

[0027] In the transfer device according to the eleventh aspect, in the transfer device according to the ninth or tenth aspect, the plurality of unit mounting openings may have a circumferential separation distance between the unit mounting openings located on the inner diameter side of the unit holder. The unit holder is formed to be longer than the circumferential separation distance between the unit mounting openings located on the outer diameter side of the unit holder.

In this configuration, the circumferential distance between the unit mounting openings located on the inner diameter side of the unit holder is longer than the circumferential distance between the unit mounting openings located on the outer diameter side. Have been. For this reason, on the outer diameter side of the unit holder, a relatively larger number of unit mounting openings are formed than on the inner diameter side, and the transport roller unit is fitted into each of these unit mounting openings. The distance between the roller bodies of the respective transport roller units in the circumferential direction is reduced. Therefore, when a transported object is transported by the unit holder, the transported material is concentrated along the outer diameter side of the unit holder, so that even a transported object having a small width dimension is transferred to the unit holder. The transport direction of the transported object is easily corrected in the transport direction to be transported by the unit holder. Further, a plurality of unit mounting openings are formed in the entire unit holding body at a circumferentially spaced distance on the outer diameter side, and the manufacturing cost is reduced as compared with a case where a transport roller unit is mounted in each of the plurality of unit mounting openings. Be reduced.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the transport device of the present invention will be described below with reference to FIGS.

In FIG. 1 to FIG. 3, reference numeral 1a denotes a transfer device, which is formed in an arc shape in plan view by an elongated flat plate curved along the longitudinal direction. The transfer device 1a includes a pair of frames 2a and 2b on both sides, and the pair of frames 2a and 2b are formed in an arc shape, have a longitudinal direction in the horizontal direction, and are parallel to each other. It is supported by support legs (not shown) in a state of being opposed to the space.

As shown in FIG. 3, between the upper ends of the pair of frames 2a and 2b, a unit holder 3a of an elongated flat plate curved along the longitudinal direction and having an arc shape in a plan view.
It is connected by. A plurality of substantially rectangular unit mounting openings 4 are formed at dispersed positions on the unit holder 3a and at intervals from the transport start end to the transport end.

Further, the unit mounting openings 4 are spaced apart in the radial and circumferential directions between the unit mounting openings 4 located on the inner diameter side 5 from the widthwise center of the unit holder 3a. Are formed longer than the separation distance in the radial direction and the circumferential direction between the unit mounting openings 4 located on the outer diameter side 6 from the center of the unit. Furthermore, the unit mounting openings 4 are formed such that the inner diameter side 5 of the unit holder 3a is formed more densely than the outer diameter side 6 of the unit holder 3a,
They are linearly arranged side by side in the radial direction from the imaginary center of 3a.

A transport roller unit 9 in which a roller body 8 is rotatably disposed in a substantially rectangular cylindrical frame 7 is detachably fitted to each of the unit mounting openings 4. The frame 7 of the transport roller unit 9 is formed of metal or the like, and has a base 10 having a substantially rectangular cylindrical cross section in which the opening shape of the unit mounting opening 4 and the outer peripheral shape are the same.
It has.

Further, a pair of locking portions 11 projecting outward are formed on both sides in the longitudinal direction of the base end side with respect to the tip end side when the base portion 10 is inserted into the unit mounting opening 4. I have. These locking portions 11 hook the base 10,
That is, it is formed by bending.

Further, the locking portions 11 are formed in a flange shape that locks to the opening edge on the surface side of the unit mounting opening 4 when the base 10 is fitted into the unit mounting opening 4.
The lower surfaces of these pairs of locking portions 11 are formed substantially flush. Note that the locking portion 11 has a base portion at the unit mounting opening 4.
In a state in which the roller body 10 is fitted, the roller body 8 is locked to the unit mounting opening 4, and the protrusion amount P of the roller body 8 is fixed.

A fitting portion along the width direction of the base 10 is located near the base end side of both end surfaces in the longitudinal direction of the base 10 and below the locking portion 11 of the base 10. 12 are provided as a pair. These fitting portions 12 are fitted to the opening edge on the back surface side of the unit mounting opening 4 in a state where the transport roller unit 9 is fitted to the unit mounting opening 4 of the unit holding body 3a. The transport roller unit 9 is formed so as to be positioned and fixed and prevent the transport roller unit 9 from being detached from the unit mounting opening 4 of the unit holder 3a.

Here, when the transport roller unit 9 is fitted in the unit mounting opening 4 of the unit holder 3a, the engaging portion 11 and the fitting portion 12 of the transport roller unit 9 are fitted in the unit mounting opening 4. The transport roller unit 9 is prevented from fluctuating with respect to the unit holder 3a when the transported object is transported by the rotation of the roller body 8 of the transport roller unit 9 because the transport roller unit 9 is locked and fitted.

In the base 10, a shaft portion 13 is formed by subjecting substantially central portions of both sides in the longitudinal direction of the base 10 to burning processing, that is, flange forming. A substantially annular roller body 8 is rotatably mounted on the shaft portion 13. Further, the roller body 8 has a base 10
The roller 8 is rotatably mounted in the base 10 in a state where the outer peripheral portion of the roller body 8 projects from the opening 14 on the base end side in the axial direction.

Further, the plurality of unit mounting openings 4 are provided in such a state that the transport roller units 9 are fitted in the plurality of unit mounting openings 4, respectively. Are formed so as to be rotatable in the transport direction C for transporting.

When the transported object comes into contact with any one of the roller bodies 8 of the transport roller units 9 fitted in the respective unit mounting openings 4 of the unit holder 3a, the roller body 8 contacting the transported object is moved. Rotate, unit holders 3a, 3
The paper is transported in the transport direction C from the transport start end side of b and 3c to the transport end side.

Further, as shown in FIG. 3, on the transport end side of the transport device 1a, that is, on the downstream side, as shown in FIG.
The transport start end side, that is, the upstream side, of the transport device 1b formed into a slender rectangular shape in plan view is continuously connected. The transfer device 1b includes a pair of frames 2c and 2d on both sides. The pair of frames 2c and 2d are formed in an elongated linear shape, have a longitudinal direction in a horizontal direction, and are spaced apart and opposed to each other in parallel. , Are supported by support legs (not shown). Further, the upper ends of the pair of frames 2c and 2d are connected by a unit holder 3b formed in a slender rectangular shape in plan view.

Further, on the transport start end side of the transport device 1a, that is, on the upstream side, the transport end side of the transport device 1c having a trapezoidal shape in plan view is provided.
That is, the downstream side is continuously connected. The transfer device 1c includes a pair of frames 2e and 2f on both sides, and the pair of frames 2e and 2f are formed in an elongated linear shape, have a longitudinal direction in a horizontal direction, and are spaced apart from each other in a parallel state. , Are supported by support legs (not shown). further,
The upper ends of the pair of frames 2e and 2f are connected by a unit holder 3c having a trapezoidal shape in plan view.

The unit mounting openings 4 are located at the dispersed positions on the unit holders 3b and 3c and at intervals from the transport start end, that is, the upstream side to the transport end side, that is, the downstream side. Each has a plurality of openings. Further, the unit holders 3b and 3c
A unit mounting opening located on one side 16 in the linear direction on the downstream side in the transport direction of the articles transported from the upstream sides of the unit holders 3b and 3c, that is, on one side 16 in the width direction that is the direction of inertia due to the transport of the articles. The distance between the four sides is 17
Is formed to be shorter than the separation distance between the unit mounting openings 4 located at the positions.

The unit mounting openings 4 are formed along the transport direction C of the unit holders 3b and 3c, and are formed along the width direction orthogonal to the transport direction C. A transport roller unit 9 is attached to each of the unit attachment openings 4.

Here, the transfer devices 1b and 1c are
Since the conveyed material conveyed from the upstream side of the unit holders 3b and 3c of 1b and 1c is conveyed along one side 16 in the width direction which is the linear direction on the downstream side in the conveying direction C of the conveyed material. ,
The unit holders 3b and 3c are formed so that the transport direction of the transport object is corrected in the transport direction C in which the transport object is to be transported.

Further, a plurality of transport rollers 19 having a roller body 8 rotatably mounted on a shaft body 18 at a fixed distance are provided at the transport start end side of the transport device 1c, that is, at the upstream end.
For example, seven are attached.

Further, the transport start end side, that is, the upstream side, of the transport device 1c is connected via a transport roller portion 19 to a side portion in the transport direction of a roller conveyor 21 having a sorter device (not shown). The roller conveyor 21 includes a plurality of roller devices between a pair of elongated linear frames 22a and 22b.
23 is rotatably mounted in the transport direction.

The transfer surfaces of the transfer devices 1a, 1b, and 1c are, for example, about 7 ° with respect to the transfer surface of the roller conveyor 21, respectively, so that one side 16 and the outer diameter side of the transfer devices 1a, 1b, and 1c. 6 is inclined downward along the other side 17 and the inner diameter side 5.

Next, the assembling process of the embodiment will be described.

The base end of the base 10 and the base
The locking edges 11 are formed by bending the opening edges of both end faces in the longitudinal direction of 10.

Next, the roller body 8 is disposed in the base 10, and the center of both sides in the longitudinal direction of the base 10 is burned to form a shaft portion 13. To form the transport roller unit 9.

Then, the transport roller unit 9 is driven into each of the unit mounting openings 4 of the unit holders 3a, 3b, 3c with, for example, a plastic hammer. At this time, the locking portion 11 is attached to the frame 7 of the transport roller unit 9.
And the fitting portion 12 are formed, so that the unit holder
The protrusion amount P of the transport roller unit 9 in the roller body 8 with respect to each of 3a, 3b, and 3c is constant, and the locking portion 11 is locked in each unit mounting opening 4, and the fitting portion 12 is fixed. Are fitted and positioned and fixed.

Next, the operation of the above embodiment will be described.

When the conveyed material conveyed by the rotation of the roller device 23 of the roller conveyor 21 is sorted by the sorter device (not shown) on the conveying start end side of the conveying device 1c, that is, on the upstream side, the conveying device 1c The conveyed object comes into contact with the roller body 8 on the transport start end side of the unit holding body 3c of the transport device 1c through the rotation of the roller body 8 of the transport roller unit 19.

At this time, the roller body 8 of the transport roller unit 9 with which the conveyed object comes into contact rotates, and the conveyed object is moved to the unit mounting opening 4 located next to the convey start end of the unit holder 3a. It comes into contact with the roller body 8 of the transport roller unit 9 fitted.

Further, by the rotation of the roller body 8 of the conveying roller unit 9 which comes into contact with the conveyed object, the conveyed roller which is next fitted to the unit mounting opening 4 located on the conveying start end side of the unit holder 3a. It contacts the roller body 8 of the unit 9.

Therefore, the conveyed object sequentially moves on the roller body 8, and finally passes through the conveying device 1a and is conveyed to the conveying end side of the unit holder 3b of the conveying device 1b.

At this time, the conveyed material is moved by one side 16 of the conveying device 1c by the rotational force of the roller device 23 of the roller conveyor 21.
After being conveyed to the conveying end side of the conveying device 1c along the frame 2e, the conveying device 1a is conveyed from the starting end side of the conveying device 1a toward the conveying end side along the frame 2a on the outer diameter side 6 of the conveying device 1a. The transport device 1b is further transported along the frame 2c on one side 16 of the transport device 1b from the transport start end side to the transport end side of the transport device 1b.

As described above, according to the embodiment, each unit mounting opening 4 of the unit holders 3a, 3b, 3c is provided.
When the transport roller units 9 are fitted to the respective rollers, the roller body 8 of each transport roller unit 9 can be disposed rotatably in the transport direction C from the transport start end side to the transport end side. For this reason, the unit holder 3 located on the transport start end side
A conveyed object that has come into contact with the roller body 8 of the transport roller unit 9 fitted in the unit mounting opening 4 of a, 3b, 3c is rotated by the rotation of the roller body 8 of each transport roller unit 9 to hold the unit holders 3a, 3b, 3c. It can be transported to the transport termination side of 3c. Therefore, the work of transporting the transported object can be further accurately performed.

Further, as compared with a transfer device in which a plurality of roller members are rotatably mounted on a support shaft and the support shaft is arranged between a pair of frames, the transfer roller unit 9 can be detachably attached to the unit mounting opening 4. It is fitted. For this reason, if any of the transport roller units 9 fitted in each unit mounting opening 4 is damaged, the damaged transport roller unit 9 is removed from the unit mounting opening 4 and the normal Can be newly attached. Therefore, the roller body 8
Can be easily exchanged, so that the handling of the transfer devices 1a, 1b, 1c can be facilitated, and the usability can be improved.

Further, a plurality of unit mounting openings 4 are formed in the unit holders 3a, 3b, 3c, and a conveying roller unit 9 is fitted into these unit mounting openings 4 to form conveying devices 1a, 1b, 1c. You. Therefore, the manufacturing process can be simplified as compared with a transfer device in which a plurality of roller bodies are rotatably mounted on a support shaft and the support shafts are arranged side by side between a pair of frames, so that the transfer devices 1a, 1b, and 1c can be easily mounted. Manufacturability can be improved.

Further, a locking portion 11 is formed on the frame 7 of the transport roller unit 9 so that the transport roller unit 9
Is fitted in the unit mounting opening 4, the locking portion 11 is locked in the unit mounting opening 4,
, The amount of protrusion P of the roller body 8 with respect to the distance. Therefore, the work of attaching the transport roller unit 9 to the unit attachment opening 4 can be easily performed.

For this reason, a plurality of roller bodies are rotatably mounted on a support shaft, and the transfer roller unit 9 is disposed in each unit mounting opening 4 as compared with a transfer device in which the support shaft is arranged between a pair of frames. It is not necessary to adjust the height of the roller body 8 of each transport roller unit 9 at the time of fitting.

When the transport roller units 9 are fitted into the respective unit mounting openings 4 of the unit holders 3a, 3b, 3c, the lower surfaces of the engaging portions 11 forming pairs of the respective transport roller units 9 are formed. Are substantially flush with each other.
According to 11, the backlash of the transport roller unit 9 with respect to the unit mounting opening 4 can be prevented.

Further, a fitting portion 12 formed on the base 10 of the frame 7 of the transport roller unit 9 fits the transport roller unit 9 into the unit mounting opening 4 of the unit holders 3a, 3b, 3c. At this time, it is fitted with the opening edge on the back side of the unit mounting opening 4. For this reason, when the transport roller unit 9 is fitted into the unit mounting opening 4, the transport roller unit 9 is locked to the unit holders 3a, 3b, 3c.
Positioning and fixing can be performed by the fitting 11 and the fitting portion 12. Therefore, it is possible to prevent the transport roller unit 9 from being detached from the unit mounting opening 4 when transporting the transport object, and further, to transport the transport object by rotating the transport roller unit 9 roller body 8. 9 can be prevented from fluctuating.

The roller body 8 is disposed within the base 10 of the frame 7 of the transport roller unit 9, and the substantially central portions of both sides in the longitudinal direction of the base 10 are burned to form the roller body 8. It is rotatably mounted in the base 10. For this reason, a shaft portion 13 for rotatably mounting the roller body 8 is newly formed separately, and the shaft portion 13 is mounted in the base portion 10 and the roller body 8 is rotatably disposed in the base portion 10. As compared with the case where the roller body 8 is rotatably provided in the base 10, the manufacturing process becomes easier, and the manufacturing cost can be reduced.

The engaging portion 11 of the frame 7 of the transport roller unit 9 is formed by bending the base 10 of the frame 7. For this reason, the manufacturing work of the locking portion 11 can be facilitated, and the manufacturing cost of the transport roller unit 9 can be reduced.

Further, when the transported object is transported from the transport start end side of the unit holder 3a to the transport end side by the rotation of the roller body 8 of each transport roller unit 9, the width of the unit holder 3a in the width direction is increased. The spacing in the radial and circumferential directions between the unit mounting openings 4 located on the inner diameter side 5 from the center is between the unit mounting openings 4 located on the outer diameter side 6 from the center in the width direction of the unit holder 3a. It is formed longer than the separation interval in the radial direction and the circumferential direction.

Therefore, a larger number of transport roller units 9 are fitted on the outer diameter side 6 of the unit holder 3a than on the inner diameter side 5, so that the unit holder 3a transports a conveyed object. Are conveyed in a concentrated manner along the outer diameter side 6 of the unit holder 3a, so that the unit mounting openings 4 are formed at a distance from the outer diameter side 6 over the entire unit holder 3a. The manufacturing cost can be reduced as compared with the case where the transport roller unit 9 is attached to each of the four.

Further, since the radial distance between the roller bodies 8 of the respective conveying roller units 9 on the outer diameter side 6 is shorter than that on the inner diameter side 5, there are many contact points with the conveyed object and the arc shape in a plan view. When a conveyed object is conveyed on the unit holding member 3a, the roller bodies 8 of the plurality of conveying roller units 9 on the outer diameter side 6 can prevent the conveyed object from sliding in the radial direction. Accordingly, the transport direction of the transported object when the transported object is transported by the roller conveyor 21 can be easily corrected in the transport direction C in which the transport is to be performed by the unit holder 3a.

The circumferential separation distance between the unit mounting openings 4 located on the inner diameter side 5 of the unit holder 3a is longer than the circumferential separation distance between the unit mounting openings 4 located on the outer diameter side 6. By being formed, more unit mounting openings 4 are formed on the outer diameter side 6 of the unit holding body 3a than the inner diameter side 5, and more transport roller units 9 are fitted. . For this reason, when the transported object is transported by the unit holder 3a, the transported object is concentrated along the outer diameter side 6 of the unit holder 3a. The unit holder 3a can convey in the conveying direction C.

Further, when the conveyed material conveyed by the roller conveyor 21 is sorted by the sorter device (not shown) to the conveyance start side of the conveyance device 1c, the conveyance is performed by the rotation of the roller device 23 of the roller conveyor 21. The object is transported along the outer diameter side 6 of the transport device 1a after being transported along one side 16 of the transport device 1c, and is further transported along the one side 16 of the transport device 1b.
Conveyed along.

At this time, in the unit holders 3b and 3c of the transporting devices 1b and 1c, the distance between the unit mounting openings 4 on one side 16 is larger than the distance between the unit mounting openings 4 on the other side 17. The transport roller unit 9 is fitted into each of the unit mounting openings 4.
For this reason, the transporting devices 1b and 1c adjust the transport direction of the transported material transported toward one side 16 of the unit holders 3b and 3c in the transport direction C of the unit holders 3b and 3c. Can be transported to

Further, as compared with a transport device in which the separation distance between the unit mounting openings 4 is formed at a constant interval, most of the transported material transported by the transport devices 1a, 1b, 1c is on the outer diameter side 6. And conveyed along one side 16 so that the inner side 5
By reducing the number of unit mounting openings 4 on the other side 17 and further reducing the number of conveying roller units 9 fitted in these unit mounting openings 4, the manufacturing cost of the conveying devices 1a, 1b, 1c can be reduced. Can be reduced.

Further, the outer diameter side 6 and the other side 17 correspond to the size of the conveyed object to be conveyed by the conveying devices 1a, 1b, 1c.
Transfer devices 1a, 1
The separation distance between the unit mounting openings 4 of b and 1c may be increased sequentially or stepwise. With this configuration, it is possible to reduce the number of unit mounting openings 4 of the transporting devices 1a, 1b, and 1c, and the number of transport roller units 9 fitted into each of the unit mounting openings 4, and reduce the size of each size. The transported object can be transported by the transport devices 1a, 1b, 1c.

In the above-described embodiment, the transfer device 1 is a long and thin flat plate curved along the longitudinal direction and has a circular arc shape in plan view.
a, the configuration of the transport device 1b having a slender rectangular shape in a plan view and the transport device 1c having a trapezoidal shape in a plan view have been described. However, the present invention is not limited to such a configuration, and the transport device fitted to the unit mounting opening 4 is not limited thereto. Any configuration is possible as long as the transported object can be transported by the rotation of the roller body 8 of the roller unit 9.

Further, when the transport roller unit 9 is fitted into the unit mounting opening 4, a flange-shaped engaging portion 11 which engages with the unit mounting opening 4 is attached to the frame 7 of the transport roller unit 9. However, the present invention is not limited to such a configuration. When the transport roller unit 9 is fitted into the unit mounting opening 4, the transport roller unit 9 is locked in the unit mounting opening 4. Any configuration may be used.

For this reason, for example, the transport roller unit 9
When the base 10 of the frame 7 is fitted to the unit mounting opening 4, it expands from the distal end side toward the base end side, and when fitted to the unit mounting opening 4, the base end of the base 10 It may be formed in a tapered shape to be locked in the unit mounting opening 4.

Further, in each of the above embodiments, a pair of frames 2a, 2b, 2c, 2d, 2e, 2f attached to the unit holders 3a, 3b, 3c are respectively provided with support legs (not shown). Has been described, but the present invention is not limited to such a configuration. For example, the surface sides of the unit holders 3a, 3b, and 3c are set to face sideways, and the unit holders 3a and When the transported object comes into contact with the roller body 8 of the transport roller unit 9 fitted in the unit mounting opening 4 of 3b, 3c, the transported object is rotated by the rotation of the roller body 8 of each transport roller unit 9, and the unit holder 3 is rotated.
It may be configured to be conveyed to the conveying end side of a, 3b, 3c.

[0080]

According to the transport roller unit of the first aspect, the transported article is transported from the transport start end side by the rotation of the roller body rotatably disposed in the frame fitted into each unit mounting opening. It can be transported to the terminal end side, and since each frame is detachably fitted to each unit mounting opening, the roller body rotatably arranged in the frame with respect to the unit mounting opening can be easily replaced. it can.

According to the transport roller unit of the second aspect, in addition to the effect of the transport roller unit of the first aspect,
A frame body in which a roller body is rotatably disposed is fitted into each unit mounting opening, so that the locking portion of the frame body is locked in each unit mounting opening, and the roller in each frame body is Since the projecting amount of the body can be made constant, the mounting operation when the frame is fitted into each unit mounting opening can be facilitated.

According to the transport roller unit of the third aspect, in addition to the effect of the transport roller unit of the second aspect,
In a state where the frame body provided with the roller body is fitted in the unit mounting opening, the frame body can be positioned and fixed by the locking portion and the fitting portion of the frame body. In addition, it is possible to prevent fluctuation of the roller body and the frame body when the conveyed object is carried by the rotation of the roller body.

According to the transport roller unit according to the fourth aspect, in addition to the effect of the transport roller unit according to the second or third aspect, the roller body is rotatably mounted in the base of the frame by burning. In addition, the manufacturing process when the roller body is axially mounted in the base can be simplified, and the manufacturing cost can be reduced.

According to the transport roller unit of the fifth aspect, in addition to the effect of the transport roller unit of the second aspect, the locking portion is formed by bending the frame body. The manufacturing process for forming the locking portion can be facilitated, and the manufacturing cost can be reduced.

According to the transfer device of the sixth aspect, each unit mounting opening of the unit holder is provided with the first to fifth aspects.
Since any one of the transport roller units is detachably fitted, the same effect as the transport roller unit according to any one of claims 1 to 5 can be obtained.

According to the transfer device of the seventh aspect, in addition to the effect of the transfer device of the sixth aspect, the roller bodies of the respective transfer roller units fitted into the respective unit mounting openings of the unit holder are formed by the transfer device. Since it is rotatable in the circumferential direction along the transport direction for transporting objects, the rotation of each roller body can reliably transport the transported object from the transport start end side to the transport end side, and the transport operation of the transported object can be performed. I can do it properly.

According to the transport device of the eighth aspect, in addition to the effect of the transport device of the sixth or seventh aspect, the transported material transported from the upstream side of the flat plate-shaped unit holding member can be moved by the transport device. Since the sheet is conveyed along one side in the width direction that is the downstream linear direction in the conveying direction, the separation distance between the unit mounting openings on one side of the unit holder is set between the unit mounting openings on the other side. By being formed shorter than the separation distance, the transport direction of the transport object can be appropriately corrected in the transport direction in which the transport object is to be transported by the unit holder.

According to the transfer device of the ninth aspect, in addition to the effects of the transfer device of the sixth or seventh aspect, when the transported object is transported by the unit holder, the transport device is disposed on the outer diameter side of the unit holder. The transport direction of the transported object can be easily corrected in the transport direction in which the transported object is to be transported by this unit holder, and further, the unit holder has an outer diameter side. The unit mounting opening is formed at the separation distance of, and the manufacturing cost can be reduced as compared with the case where the transport roller unit is mounted in each of the plurality of unit mounting openings.

According to the transport device of the tenth aspect, in addition to the effect of the transport device of the ninth aspect, when transporting the conveyed article by the unit holder, the transported object is moved along the outer diameter side of the unit holder. Since the conveyed material is concentrated, each roller body of a large number of conveying roller units formed on the outer diameter side can prevent the conveyed object from sliding in the radial direction, and the conveying direction of the conveyed object to the unit holder. It can be easily corrected in the transport direction to be transported, and the manufacturing cost can be further reduced.

According to the transfer device of the eleventh aspect, in addition to the effect of the transfer device of the ninth or tenth aspect, when a conveyed object is conveyed by the unit holder, the transfer device is disposed on the outer diameter side of the unit holder. Since the objects are conveyed in a concentrated manner, even a conveyed object having a small width can be conveyed by the unit holder, and the conveying direction of the conveyed object is set to the conveying direction in which the object is to be conveyed by the unit holder. And can be easily modified, further reducing manufacturing costs.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a transport roller unit of the present invention.

FIG. 2 is a cross-sectional view showing a transport device to which the transport roller unit is fitted.

FIG. 3 is a top view showing the transport device.

[Explanation of symbols]

 1a, 1b, 1c Conveyor 3a, 3b, 3c Unit holder 4 Unit mounting opening 7 Frame 8 Roller 9 Transport roller unit 10 Base 11 Locking section 12 Fitting section 14 Opening

Claims (11)

[Claims] 1. A transport roller unit which is attached to a plurality of unit attachment openings which are opened at a distance from each other from a transport start end side to a transport end side, and which are detachably fitted to the unit attachment openings. And a roller body rotatably disposed in the frame body and transporting the conveyed object by rotation. 2. A frame body having a substantially cylindrical base portion detachably fitted to a unit mounting opening and having an opening formed in at least one of the frames, and the base portion fitted to the unit mounting opening formed at the base portion. And a locking portion that locks the unit mounting opening to fix the amount of protrusion of the roller body in a state where the roller body is at least partially protruded from the opening of the base. 2. The transport roller unit according to claim 1, wherein the transport roller unit is rotatably disposed in the base. 3. The frame is formed below the locking portion of the base of the frame, and the base is fixed together with the locking portion in a state where the base is fitted in the unit mounting opening. 3. The transport roller unit according to claim 2, further comprising a fitting portion for positioning and fixing. 4. The transport roller unit according to claim 2, wherein the roller body is rotatably mounted in the base by burning the base. 5. The transport roller unit according to claim 2, wherein the locking portion of the frame is formed by bending. 6. A unit holder having a plurality of unit mounting openings located at an interval from the transport start end side to the transport end side, and detachably fitted to the plurality of unit mounting openings of the unit holder. A transport device comprising a plurality of transport roller units according to any one of claims 1 to 5. 7. A plurality of unit mounting openings are formed in a dispersed state on a substantially flat unit holder, and a transport roller unit is fitted into each of the plurality of unit mounting openings. 7. The roller body of each of the transport roller units is formed in such a shape that the circumferential direction thereof is rotatable along the transport direction in which the transported article is transported. The transfer device as described in the above. 8. The unit holding body is formed in a flat plate shape,
The separation distance between the unit mounting openings located on one side in the width direction that is the linear direction on the downstream side in the transport direction of the conveyed object conveyed from the upstream side of the unit holder is located on the other side. 8. The transfer device according to claim 6, wherein the transfer device is formed to be shorter than a separation distance between the openings. 9. The unit holder is formed in an arc shape in a plan view, and a separation distance between unit mounting openings located on the inner diameter side of the unit holder is set on the outer diameter side of the unit holder. 8. The transfer device according to claim 6, wherein the transfer device is formed to be longer than a separation distance between the openings. 10. A plurality of unit mounting openings, wherein a radial distance between the unit mounting openings located on the inner diameter side of the unit holder is a diameter between the unit mounting openings located on the outer diameter side of the unit holder. The transport device according to claim 9, wherein the transport device is formed to be longer than the separation distance in the direction. 11. A plurality of unit mounting openings, wherein a circumferential separation distance between unit mounting openings located on the inner diameter side of the unit holder is a distance between the unit mounting openings located on the outer diameter side of the unit holder. The transport device according to claim 9, wherein the transport device is formed to be longer than the separation distance in the direction.