JPH08133435A - Driving roller device - Google Patents

Abstract

PURPOSE: To downsize the whole of a device, and to reduce the cost by forming the peripheral dimension of a driving chain to be wrapped around sprockets as nearly same as the outer diameter dimension of a roller, and supporting a material to be carried with the chain and a bent attachment. CONSTITUTION: A bent attachment 31, which is bent inward, is provided in a driving chain 3 wrapped around a sprocket 2, which is integrally fitted to a roller 1, and the peripheral dimension (a) formed by the driving chain 3 is formed as nearly same as the outer diameter dimension of the roller 1. A material to be carried can be supported by not only the periphery of the roller 1 but also the bent attachment 31 of the driving chain 3, and the whole of the device can be downsized and the cost thereof can be reduced. Machine width space can be reduced, and since a driving unit is not projected outside, manufacture of a device having a different specification is unnecessary at the time of combining plural devices for arrangement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive roller device driven by a chain.

[0002]

2. Description of the Related Art As a conventional technique relating to a driving roller device, those shown in FIGS. 8, 10 and 11 are known.

The prior art shown in the above drawings will be described. FIG. 8 is a schematic front view of a shaft-fixed drive roller device, and FIG. 10 is a schematic front view of a shaft-rotated drive roller device. As shown, in these drive roller devices, a sprocket and a drive chain are mounted so as to project to the outside of the conveyed product. Also, FIG.
1 shows a schematic front view of another shaft-rotating drive roller device. In this drive roller device, another roller is attached to the outer side of a sprocket.

[0004]

However, the above-mentioned prior art has the following problems.

That is, since the driving roller device shown in FIGS. 8 and 10 is designed so that the bottom surface of the conveyed article is entirely supported by the rollers, the sprocket and the driving roller hung on the sprocket. Since the chain and the chain largely protrude to the outside of the conveyed object, the entire apparatus cannot be downsized. Further, in the drive roller device shown in FIG. 11, one roller is divided into two so that a sprocket or the like can be attached to the middle part of one shaft, so the entire device is not enlarged. However, the structure becomes complicated and the manufacturing cost of the entire apparatus becomes expensive.

Therefore, it is an object of the present invention to provide a drive roller device which can be downsized at low cost.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a drive chain suspended on a sprocket integrally attached to a roller, and the outer peripheral dimension formed by the drive chain suspended on the sprocket is defined as above. The object described above is achieved by providing a drive roller device characterized in that the outer diameter of the roller is made substantially equal.

It is preferable that the drive chain is a roller chain with a bent attachment having an inward bend.

[0009]

The drive roller device according to the present invention can be inexpensively downsized in its entirety. In addition, since the machine width space can be reduced and the drive unit does not need to be projected outward, it is not necessary to manufacture a different device when arranging a plurality of devices in combination.

[0010]

Embodiments of the drive roller device of the present invention will be described below.

FIG. 1 is a front view of an essential portion showing an embodiment of a drive roller device of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is an enlarged view of the drive chain shown in FIGS. FIG. 4 is a front view of FIG. 3, FIG. 5 is a side view of FIG. 3,
FIG. 9 is a schematic front view of the drive roller device shown in FIGS. 1 and 2.

In these drawings, 1 is a roller, 2 is a sprocket integrally attached to the roller 1, 3 is a drive chain which is hung on the sprocket 2, and is a roller chain with a bent attachment 31 having an inward bend. It is configured. The outer peripheral dimension a formed by the drive chain 3 suspended on the sprocket 2 and the outer diameter dimension b of the roller 1 are substantially equal to each other. Then, the conveyed article G is attached to the roller 1 and the vent attachment 31 of the drive chain 3.
It is designed to be supported by.

Each part in the above embodiment will be described. The roller 1 is constructed by housings (not shown) fixed to both ends of a pipe, and a sprocket 2 is integrally attached to the outside of one of the housings. Has been.
A bearing (not shown) is inserted into the housing, and the roller 1 is connected to the frame 4 via the bearing.
The roller shaft 5 is fixedly mounted on the roller shaft 5 so as to be freely rotatable, and is driven by the drive chain 3 via the sprocket 2.

The drive chain 3 has two rollers 1
Is a roller chain stretched endlessly so as to mesh with a sprocket 2 attached to each of the sprocket 2 and a drive sprocket 61, which will be described later. The vent attachment 31 is provided.

The roller shaft 5 is fixedly installed on the frame 4 by a key plate 51. The shaft 62 to which the driving sprocket 61 is attached is driven by a motor 63.

Since the outer peripheral dimension a formed by the drive chain 3 suspended on the sprocket 2 and the outer diameter dimension b of the roller 1 are substantially equal to each other, the article G is conveyed by the roller 1
Not only the outer periphery of the drive chain 3 but also the vent attachment 31 of the drive chain 3 can be supported. The outer peripheral dimension a is the diameter of the arc formed by the outside of the vent attachment 31 of the drive chain 3 suspended on the sprocket 2, and in FIG. 2, the vent of the drive chain 3 is from the center of the roller shaft 5. It is twice the distance to the outside of the attachment 31.

The embodiments of the drive roller device of the present invention have been described above, but the invention is not limited to these.
For example, as the drive chain 3, as shown in FIGS. 6 and 7, a roller link plate on one side is protruded in a tongue shape and is bent inward to bend the bent attachment 31 and a pin link plate on the opposite side is protruded in a tongue shape. It is also possible to use a roller chain provided with an inwardly bent vent attachment 32 that is bent inward. An ordinary roller chain without the vent attachments 31 and 32 is used.
The outer peripheral dimension formed by the roller link plate may be substantially equal to the outer diameter dimension b of the roller 1.

Further, as shown in FIG. 12, the roller 1 and the sprocket 2 may be fixed to the roller shaft 5, and the roller shaft 5 may be supported by the bearing 7 so as to be freely rotatable.

Further, the drive chain 3 may be hung on only one roller 1. Alternatively, the driving chain 3 may be stretched over three or more rollers 1 to form a roller conveyor.

[0020]

Since the drive roller device of the present invention is configured as described above, the entire device can be inexpensively downsized. In addition, since the machine width space can be reduced and the drive unit (sprocket, drive chain, etc.) does not need to be projected outward, it is not necessary to manufacture a different device when arranging a plurality of devices in combination.

[Brief description of drawings]

FIG. 1 is a front view of essential parts showing an embodiment of a drive roller device of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an enlarged (partially cutaway) plan view showing the drive chain shown in FIGS. 1 and 2;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a side view of FIG. 3;

FIG. 6 is a plan view showing another embodiment of the drive chain shown in FIGS. 1 and 2 in an enlarged manner (partially cut away).

FIG. 7 is a front view of FIG.

FIG. 8 is a schematic front view of a conventional shaft-fixed drive roller device.

9 is a schematic overall front view of the drive roller device shown in FIGS. 1 and 2. FIG.

FIG. 10 is a schematic front view of a conventional shaft rotation type drive roller device.

FIG. 11 is a schematic front view of another conventional shaft-rotating drive roller device.

FIG. 12 is a schematic front view of another embodiment of the drive roller device of the present invention.

[Explanation of symbols]

 1 Roller 2 Sprocket 3 Drive chain 31 Vent attachment 32 Vent attachment a Perimeter dimension formed by drive chain b Roller outer diameter dimension

Claims (2)

[Claims] 1. A driving chain hung on a sprocket integrally attached to a roller, the outer peripheral dimension of the driving chain hung on the sprocket being substantially equal to the outer diameter of the roller. A drive roller device characterized by what is done. 2. The drive roller device according to claim 1, wherein the drive chain is a roller chain with a bent attachment having an inward bend.