JP2003063628A - Drive roller conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller-driven roller conveyer that hardly fails with a simple structure without using a drive belt. SOLUTION: Many conveyance rollers 3, 3 are placed in parallel between frames 2, 2 and drive rollers 5 are arranged below the conveyance rollers near the frame ends. First highly frictional rollers 3a, 3a with a large frictional resistance contacting the drive rollers 5 are fixed on one end part side of plural conveyance roller shafts 13 at a head-tail part of the conveyer and second highly frictional rollers 3b are fixed on the other end part side of the respective conveyance roller shafts 13. A support member 8 is placed on inside surface of a frame along one end part side of the conveyance roller group and many interlocking rollers 6 elastically abutting respectively on two adjoining second highly frictional rollers 3b, 3b are arranged above the support member 8. The respective conveyance rollers 3 are synchronously rotated for conveying objects to be conveyed via the first highly frictional rollers 3a contacting the drive rollers 5, the conveyance roller shafts 13, the second highly frictional rollers 3b, the interlocking rollers 6 and the second highly frictional rollers of the adjoining conveyance roller shafts 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller conveyor which does not require a flat belt and which is small in size and conveys a relatively small and lightweight product.

[0002]

2. Description of the Related Art A conventional conveyor of this type is known as Shokai Sho 63.
No. -67515, a driving belt is arranged on the lower surface of the conveying roller, and the driving belt is pressed against the conveying roller using a large number of pressure rollers to rotate the conveying roller. In addition, a fixed roller with the same diameter as the transport roller is fixed to one side of each transport roller shaft, an endless high-friction flat belt is placed below the fixed roller portion, and the flat belt is driven to drive the transport roller via the fixed roller. It is also known to rotate. However, in the above-mentioned conveyor, the flat belt has a narrow width, and therefore it is easy to meander, and the belt is severely damaged, so that the joint portion of the belt is easily damaged.

[0003]

As described above, in the normal roller conveyor, the high friction flat belt is rotated by driving the motor, and the conveying roller is rotated by the rotation of the belt, so that the flat belt causes a defect. It will be.
The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a drive roller conveyor capable of rotating a conveying roller with a simple structure without using a flat belt.

[0004]

In order to achieve the above object, the drive roller conveyor of the present invention has a plurality of shafts juxtaposed between the frames in which the transport rollers are rotatably inserted to form a transport surface. An axial drive roller conveyor in which at least one drive roller is arranged below the plurality of transfer rollers near the frame end; to the drive roller on one end side of the plurality of transfer roller shafts at the head and tail of the conveyor A first high friction roller having a large frictional resistance in contact is fixed, and a second high friction roller is fixed to the other end side of each conveying roller shaft; a frame extending along one end side of the conveying roller group. A support member is provided on the inner side surface of the above, and a large number of interlocking rollers that elastically contact the lower surfaces of two adjacent second high friction rollers are arranged above the support member. Further, the interlocking roller is rotatably supported on the support member by a holder biased upward via a spring. Further, the carrying roller is characterized in that it is divided into a plurality in the width direction of the conveyor.

According to the present invention configured as described above,
Since it is a roller conveyor driven by rollers, it has a simpler conveyor structure, fewer failures, and is easier to maintain than a roller conveyor driven by belts.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view of the drive roller conveyor of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is a back view of FIG. As shown in the figure, in the drive roller conveyor 1 of the present invention, a plurality of shafts 13 arranged in parallel between the frames 2 and 2 are respectively rotatably fitted with conveying rollers 3 to form a conveying surface, and the conveying surface is formed near the end of the frame. The drive rollers 5 and 5 are arranged below the plurality of transport rollers. A first high-friction roller 3a having the same frictional resistance as the transport roller and having a large frictional resistance is fixed to one end side of the shaft 13 of each transport roller, and the other of the plurality of transport roller shafts 13 at the head and tail of the conveyor is attached. A second high-friction roller 3b having the same diameter as the conveying roller and having a large frictional resistance in contact with the driving roller 5 on the end side
To fix. Further, the interlocking roller 6 that elastically abuts the two adjacent second high-friction rollers 3b and 3b on the inner surface of the frame along one end side of the transport roller group.
Place many.

FIG. 5 is an enlarged perspective view of an assembly portion of the conveying roller 3 and the interlocking roller 6. A plate 7 is fixedly attached to the inner surface of the frame 2 along one end of the conveying roller group 3 and a supporting member 8 is attached thereto. Above the supporting member 8, two adjacent second high friction rollers are provided. A large number of interlocking rollers 6, 6 that elastically contact with 3b, 3b are arranged. Each interlocking roller 6 is rotatably supported by the shaft holder 9, and is upwardly moved by the coil spring 11 provided between the support member 8 and the shaft holder 9, that is, the first high friction roller 3a.
Is placed under pressure. In FIG. 5, 10 is an interlocking roller shaft, 12 is a bearing recess for supporting the end of the conveying roller shaft formed on the upper side of the frame 2, 14 is a bearing piece, 15 is a screw, 16 and 18 are bolts, 17 and 19
Is a bolt hole formed in the support member 8, and 19a is a bolt hole formed in the plate 7.

As shown in the figure, the two drive rollers 5 are arranged near the front and rear ends of the roller conveyor 1 in the longitudinal direction, but it goes without saying that at least one drive roller also functions. The first and second high-friction rollers 3a and 3b are made of, for example, a resin roller or a knurled metal roller so as to have a high friction surface.

In the illustrated embodiment, the interlocking roller 6 is provided between all the conveying rollers, but if the drive of the drive roller can be transmitted to the conveying roller, it may be omitted as appropriate. Further, although the interlocking roller is rotatably supported at both ends of the shaft 10 penetrating the shaft holder 9, the interlocking roller may be fixed to the rotatable shaft. Further, instead of forming the shaft holder 9 into a block shape, a U-shaped support fitting may be used, and one interlocking roller may be provided in each of the fittings (not shown). The interlocking roller 6 is preferably a roller surface having a high frictional force.

The operation of the drive roller conveyor having the above structure will be described. Drive rollers 5, 5 by driving motor 4.
The first high-friction rollers 3a, 3a that are in contact with
The high friction rollers 3b and 3b are rotated. By rotating the high friction rollers 3b and 3b, the conveyance rollers 3 and 3 are synchronously rotated via the interlocking roller 6 and the second high friction roller 3b of the adjacent conveyance roller shaft 13 to convey the object to be conveyed.
At this time, the transport rollers 3 rotate with low friction as the shaft 13 to which the high friction roller is fixed rotates.

FIG. 6 shows another embodiment of the roller conveyor according to the present invention, which is the same as the above-mentioned embodiment except that the conveying roller 3d is composed of divided rollers. Since the conveying roller in this case is the dividing roller 3d, the storage function is smoothly exerted when an object (conveyed article) is accumulated in the conveying path, and the range of use of the roller conveyor can be expanded.

[0012]

As described above, in the drive roller conveyor of the present invention, the first high friction roller having a large frictional resistance, which is in contact with the drive roller, is fixed to the other end of the plurality of conveying roller shafts at the head and tail. At the same time, the second high friction roller is fixed to one end side of the shaft of each conveyance roller, and further elastically abutted on the two second high friction rollers adjacent to the inside of one frame. Since the interlocking rollers are arranged, it is possible to smoothly convey the object to be conveyed by synchronously rotating the respective conveyance rollers via the interlocking roller and the second high friction roller of the adjacent conveyance roller shaft. Further, according to the present invention, since the flat belt is not used and the interlocking roller can be attached to the pressurizing state by the spring to rotate the conveying roller, there are few failures as compared with the belt driving conveyor, and any trouble is caused. The drive roller conveyor can be easily maintained without any adjustment.

[Brief description of drawings]

FIG. 1 is a front view of a drive roller conveyor according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a rear view of FIG.

FIG. 5 is an enlarged perspective view of an assembly portion of a conveyance roller and an interlocking roller.

FIG. 6 is a plan view of a drive roller conveyor according to another embodiment of the present invention.

[Explanation of symbols]

1 Roller Conveyor 2 Frame 3 Conveying Rollers 3a, 3b High Friction Roller 3d Dividing Roller 4 Driving Motor 5 Driving Roller 6 Interlocking Roller 7 Support Plate 8 Supporting Member 9 Shaft Holder 10 Interlocking Roller Shaft 11 Spring 12 Bearing Recess 13 Conveyor Roller Shaft 14 Bearing piece 15 Screw 16, 18 Bolt 17, 19, 19a Hole

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[Procedure amendment]

[Submission date] September 17, 2001 (2001.9.1)
7)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

Claims (3)

[Claims] 1. A conveying surface is formed by rotatably inserting a conveying roller on a large number of shafts arranged in parallel between frames, and at least one driving roller is arranged under a plurality of conveying rollers near a frame end. In the drive roller conveyor of the shaft drive described above, a first high friction roller having a large frictional resistance that is in contact with the drive roller is fixed to one end side of a plurality of transfer roller shafts at the head and tail of the conveyor, and A second high-friction roller is fixed to the other end of the roller shaft, and a support member is provided on the inner side surface of the frame along one end of the transport roller group. A drive roller conveyor characterized in that interlocking rollers that elastically contact each other are arranged on the lower surfaces of the two second high-friction rollers. 2. The drive roller according to claim 1, wherein the interlocking roller is rotatably supported by a holder that is biased upward through a spring on the support member. Conveyor. 3. The drive roller conveyor according to claim 1, wherein the conveying roller is divided into a plurality in the width direction of the conveyor.