JP2002070953A - Toothed belt for repair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothed belt for repair which can shorten a stop time of a line or the like smaller than in the past. SOLUTION: This toothed belt 1 for repair, used in emergency when a regular belt is at trouble time or the like, is provided with a connection end part 3 which must be connected to each other in a condition wound to a toothed pulley, the connection end part 3 has a tooth lacked region 8, and its length is set in accordance with a length of a tooth which must be essentially provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothed belt for repairing, for example, a factory line.

[0002]

2. Description of the Related Art Toothed belts have conventionally been used in manufacturing lines and transport lines in factories, but failures such as tearing of the belts may occur suddenly during operation of the line.

[0003] In order to replace a faulty toothed belt, it is necessary to make the pulleys of the machine on which the belt is mounted slightly closer to each other so that a new belt can be extended.

[0004] However, this replacement requires a certain amount of disassembly of the machine and is very troublesome and takes a long time. However, during this time, there is a problem that the line is stopped and product production is stopped. Was.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a toothed belt for repair capable of shortening a stop time of a line or the like as compared with a conventional belt.

[0006]

In order to solve the above-mentioned problems, the present invention employs the following technical means. The repaired toothed belt according to the present invention is a repaired toothed belt which is used immediately when a regular belt fails, and has a connecting end to be connected to each other while being wound around a toothed pulley. The connection end has a toothless region, and the length of the toothless region is set in accordance with the length of the original tooth.

Since the repaired toothed belt has a connecting end to be connected to the toothed pulley while being wound around the toothed pulley, it is not necessary to particularly bring the toothed pulleys of the machine close to each other during the repair. In addition, the length of the toothless area at the connection end is set according to the length of the teeth that should be, so that it can be wrapped around the toothed pulley without excess or shortage, which is an obstacle to emergency use. There is no. After the connecting ends are connected to each other, the back surface thereof may be pressed with a roll to generate belt tension.

[0008] With this configuration, the belt can be set to be slightly longer, so that the belt can be slightly lengthened while being wound around the toothed pulley during repair. The work of connecting the ends to each other is easy. The connection operation may be performed in a state where the connection ends are brought close to each other by a jig of a clamp mold having a corresponding tooth mold formed thereon.

With this configuration, tension is generated when the connection of the connecting end is completed during repair, so that there is no need to press the rear surface with a roll during use.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) As shown in Figs. 1 to 9, the repaired toothed belt 1 of this embodiment is used for emergency when a regular belt fails. The original regular toothed belt is used for conveying goods with light load transmission.

The repair belt is provided with connecting ends 3 to be connected to each other while being wound around the toothed pulley 2 at the time of repair. A plurality of long annular fittings 4 are embedded in both of the connection ends 3 in such a manner that the connection ends thereof are exposed. The two connecting ends 3 are elongated metal fittings 4.
8 and 9 are joined by inserting a metal pin 5 (FIGS. 8 and 9 show a pin having a different form from FIGS. 1 to 7).

As shown in FIGS. 6 and 7, the metal pin 5 is coated with a resin 6 so as to suppress the wear of the metal portion 7. In addition, the coating resin 6 of the pin may be provided with irregularities in accordance with the embedding pitch of the metal ring (not shown).

As shown in FIG. 3, the connecting end 3 has a toothless region 8, and the length of the toothless region 8 is set in accordance with the length of the tooth that should be. The protective cloth 9 (FIG. 3,
4, and FIGS. 1, 2, and 6 to 9 are adhered to cover the long-circular metal fitting 4 and the pin 5. As the protective cloth 9, a canvas, a resin sheet, or the like can be used. FIG. 4 shows a state in which the protective cloth 9 is disposed on the front side of the belt 1, but may be disposed on the rear side or both sides.

As shown in FIG. 3 and FIG.
Are disposed on the outer side of the long annular fitting 4. The protective cloth 9 has the function of protecting the long annular fitting 4 and the pin 5 from wear and preventing generation of abnormal noise.

As shown in FIG. 5, the protective cloth 9 may be directly fixed to the inner side of the long metal fitting 4, that is, to both the front and back surfaces of the belt 1 itself. In this case, the protective cloth 9 has an action of reinforcing the belt 1 into which the long annular metal fitting 4 is inserted. The protection cloth 9 may be provided on both the inner side and the outer side of the long annular fitting 4.

As shown in FIG. 1, after the connecting ends 3 are connected to each other in the above-described manner, two portions on the back surface thereof are pressed by rolls 10 to generate belt tension. . By the way, the breaking strength of the connecting end 3 was set so as to maintain more than the tension on the tight side when a load is generated in emergency use.

In this embodiment, the connecting end 3 is provided at one place. However, it may be easier to form the connecting end 3 at two or more places depending on the situation around the machine. It may be formed.

Next, the state of use of the repaired toothed belt of this embodiment will be described.

In the repaired toothed belt 1, the connecting end portions 3 to be connected to each other while being wound around the toothed pulley 2.
Therefore, there is no need to particularly bring the toothed pulleys 2 of the machine closer to each other at the time of repair, and there is an advantage that the stop time of the line or the like can be shortened as compared with the related art.
That is, when a failure occurs, the belt can be replaced with the repaired toothed belt 1 simply and quickly in a short time, so that the stoppage of product production during operation can be minimized.

When the line is stopped, such as when the factory is closed, the regular toothed belt should be disassembled and formally replaced. In the next operation, the regular toothed belt can be moved with the regular toothed belt. it can.

Further, since the length of the toothless region 8 of the connecting end portion 3 is set in accordance with the length of the tooth that should be,
It can be wound around the toothed pulley 2 without any excess or shortage, and there is no problem in emergency use. In other words, even if there is some deviation from the actual tooth portion of the toothed belt,
The displacement can be absorbed by the overall elongation including the joint portion.

Further, as shown in FIG.
After the belts are connected to each other, the back surface of the belt is pressed with a roll 10 to generate belt tension.Because the belt length can be set slightly longer, the There is an advantage that the belt can be slightly lengthened in a state of being wound around the pulley 2, and the work of connecting the connecting ends 3 to each other can be easily performed. (Embodiment 2) Next, Embodiment 2 will be described focusing on differences from the above embodiment.

As shown in FIG. 11, in this embodiment,
The connecting end 3 is shaped so that it can be fitted to each other by the rubber itself of the repaired toothed belt 1, and these are brought into contact with each other so that the pin 5 is inserted into the insertion hole 11 and joined. I have. (Embodiment 3) Next, Embodiment 3 will be described focusing on differences from the above embodiment (not shown).

At both connection ends, the core cord is vulcanized in a state of being wound in a loop. The pins are inserted and joined in a state where the two loop-shaped core cords are arranged so as to overlap each other.

According to this embodiment, since the processing is performed integrally, there is an advantage that the strength is excellent and the whole is soft and easily wound around the toothed pulley. (Embodiment 4) Next, Embodiment 4 will be described focusing on differences from the above embodiment.

As shown in FIG. 11, in this embodiment,
The connection work is performed in a state where the connecting ends 3 are brought close to each other by a jig 12 of a pulling clamp mold having a corresponding tooth form.

That is, the two connecting ends 3 are fixed from above and below by the clamps 13 and the screwing means 14 is tightened with the centers of the clamps protruding, so that the connecting ends 3 are brought closer to each other. I try to go. In this case, the repaired toothed belt 1 is elastically elongated.

The pin 5 is inserted in a state in which the two long annular metal fittings 4 of the connecting end 3 are overlapped, and the tightening of the screwing means 14 is released, so that the extended repair tooth is provided. The belt 1 is elastically restored, and finally the jig
When the connection 12 is removed, the connection ends 3 are connected to each other. Although the illustrated screwing means 14 is a thumbscrew 15, it may be a hexagonal screw.

In this embodiment, the connection work is carried out in a state in which the connection ends 3 are brought close to each other by the jigs 12 of the clamp molds having the corresponding tooth molds formed. Since tension is generated at the time when the connection of No. 3 is completed, there is an advantage that it is not necessary to press the back surface of the roll 10 with the roll 10 during use.

[0030]

The present invention is configured as described above and has the following effects.

Since there is no need to particularly bring the toothed pulleys of the machine closer to each other during the repair, it is possible to provide a repaired toothed belt capable of shortening the stop time of a line or the like as compared with the related art.

[Brief description of the drawings]

FIG. 1 is a side view illustrating a use state of a repair toothed belt according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of a main part for explaining the vicinity of a toothed pulley of the repair toothed belt of FIG. 1;

FIG. 3 is an enlarged view of a main part for explaining the vicinity of a connection end of the belt with a repair tooth shown in FIG. 1;

FIG. 4 is an enlarged view of a main part for explaining the vicinity of a protective cloth in FIG. 3;

FIG. 5 is an enlarged view of a main part for explaining another embodiment different from the vicinity of the protective cloth of FIG. 4;

FIG. 6 is an enlarged perspective view of a main part for explaining a state before joining of a connection end portion of the repaired toothed belt of FIG. 1;

FIG. 7 is an enlarged perspective view of an essential part for explaining a state after joining of a connection end portion of the belt with repair teeth of FIG. 1;

FIG. 8 is an enlarged plan view of a main part for explaining the vicinity (rear side) of a connection end portion of the repaired toothed belt of FIG. 1;

FIG. 9 is an enlarged bottom view for explaining the vicinity (tooth side) of the connection end portion of the repaired toothed belt of FIG. 1;

FIG. 10 is a second embodiment of a toothed belt for repair according to the present invention.
The principal part expansion perspective view explaining the vicinity of the connection end part of FIG.

FIG. 11 is a fourth embodiment of the repaired toothed belt of the present invention.
The principal part expansion perspective view explaining the vicinity of the connection end part of FIG.

[Explanation of symbols]

 1 Toothed belt for repair 2 Toothed pulley 3 Connecting end 8 Tooth missing area 10 Roll 12 Jig

Claims (3)

[Claims] 1. A repaired toothed belt for emergency use in the event of a regular belt failure, comprising a connecting end to be connected to a toothed pulley while being wound around the toothed pulley; A toothed belt for repair having a toothless region and a length of the toothless region is set according to a length of a tooth which should be originally. 2. The repaired toothed belt according to claim 1, wherein, after the connecting ends are connected to each other, a back surface thereof is pressed by a roll to generate belt tension. 3. The repaired toothed belt according to claim 1, wherein the connecting operation is performed while the connecting ends are brought close to each other by a jig of a clamp mold in which a corresponding tooth form is formed.