JPH0544905U - Conveyor belt - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a conveyor belt that does not generate noise during the transportation of articles and can be easily manufactured and maintained. [Structure] Thin portions 12a and 12b are provided at both ends of the belt 11.
And the racing belt 13 is connected endlessly, and the entire thin portions 12a and 12b and the racing hook 13 are partially adhered and covered with the cover member 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a conveyor belt suitable for use in transmitting a rotational force to a conveyance roller for conveying various articles.

[0002]

[Prior Art]

 There is a conveyor belt configured to convey various articles as shown in FIG. That is, the belt 1 has a predetermined length and is configured to be endless. The belt 1 is wound around a belt wheel 2 that rotates in conjunction with a drive source such as a motor (not shown), and travels in the direction of arrow A, for example. Is becoming The plurality of transport rollers 3 are for transporting the article 4 placed thereon, and both ends of each transport roller 3 contact the outer surface of the belt 1 and rotate in the direction of arrow B. Is configured. Therefore, the article 4 to be conveyed is conveyed in the direction of arrow C, which is the opposite direction to the moving direction of the belt (direction A), by the rotation of the plurality of conveying rollers 3.

[0003]

[Problems to be solved by the device]

 In the belt 1 described above, the racing hooks that alternately intersect the end portions of the belt-shaped belt are connected in a flex shape through the common mandrel, so that there is a connecting portion 5 in at least one position. The racing hooks in the connecting portion 5 are made of metal, and the transport rollers 3 are also generally made of metal and formed into a cylindrical shape. Therefore, when the belt 1 travels in the direction of the arrow A, the racing hooks come into contact with the respective conveying rollers 3 in sequence, so that the conveying rollers 3 and the joint portion 5 are damaged, and a noise is generated each time they make contact. In addition, the noise reverberates in each of the conveying rollers 3. Further, as a structure for connecting both end portions of the belt, as disclosed in, for example, Japanese Utility Model Laid-Open No. 56-117145, there is a structure in which a metal portion is filled with rubber to cover a coupling portion by a racing hook. .. If the belt having such a structure is used, the above problems can be solved.

However, the disclosed structure is one in which the joining portion of the belt by the racing hook, that is, both ends is formed in a concave shape, and the concave portion is filled with unvulcanized rubber and integrally vulcanized and molded. In addition to the need for facilities for chemical treatment for vulcanization, the number of man-hours for production will increase. In addition, the use of a conveyor belt causes the stuffed rubber to wear and create a step, which causes noise and rattles in the rotation of the roller. It cannot be repaired. That is, the work of removing the stuffing rubber is not only a troublesome work, but also it is extremely difficult to cleanly remove the stuffing rubber. If the size of the belt is large, this kind of maintenance work is not only difficult, but the time until the stuffed rubber solidifies cannot be used. There is a problem that it becomes longer and the work efficiency decreases.

The present invention has been made in view of the above problems, and an object thereof is to provide a conveyor belt that does not generate noise during the transportation of articles and can be easily manufactured and maintained.

[0006]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTIONThe above-mentioned problem of the present invention relates to a conveyor belt in which both ends of the belt are joined endlessly by using lacing hooks, and at least one side of each end of the belt is formed as a thin portion recessed from the belt surface. This is achieved by a conveyor belt characterized in that both ends thereof are connected by the racing hook, and a cover member adhered to the thin portion is provided so as to cover at least a part of the racing hook.

[0007]

[Action]

 That is, by forming the connecting portions at both ends of the belt as a thin portion, in other words, as a concave portion, the racing hook does not protrude from the belt surface, and at least a part of the racing hook or the entire thin portion is covered. Since there is no step difference due to the formation of the thin portion, and in the belt that drives the transport roller, the transport roller and the racing hook are not in contact with each other, so no noise is generated. Furthermore, there is no need for any device or process for integrally vulcanizing the stuffed rubber, and since the cover member is simply glued, it can be easily manufactured and, in addition, it wears out due to long-term use. However, the user can easily repair it at the site of use.

[0008]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view of the main part of the conveyor belt, and FIG. 2 is an enlarged sectional view of the main part. Further, in the description of the embodiment, FIG. 4 used in the description of the conventional example is appropriately incorporated. The belt 11 in this embodiment is used in the same manner as the belt 1 described in the conventional example shown in FIG. 4, and has a thin portion at both ends of the belt 11, that is, at a connecting position for connecting the belt 11 endlessly. 12a and 12b are formed.

The racing hook 13 is for flexibly and flexibly coupling the belt 11, and has a so-called U-shaped hook member 13a, which is annular at one end and open at the other end, and is arranged in a comb shape. The connecting rod 13b is inserted through the portion. Then, the claw portions 13c formed so as to face each other at the open ends of the hook members 13a are bitten into the thin portions 12a and 12b, whereby the end portions of the belt 11 are joined endlessly.

On the other hand, the entire upper side surfaces of the thin portions 12 a and 12 b are covered with a cover member 14. The cover member 14 is made of soft rubber in the shape of a thin plate, and its area is set so as to cover the thin portions 12a and 12b and the entire racing hook 13. Further, the thickness of the cover member 14 is set so that there is no step between the recessed portion formed by the thin portions 12a and 12b and the belt 11. In addition, by appropriately forming a concave portion for receiving the protrusion of the racing hook 13 as necessary, the concave portion of this connecting portion can be eliminated and the surface of the cover member 14 can have the same height as other portions of the belt. It can be a flat surface.

The cover member 14 is adhered to an upper side surface side of the thin portion 12a (a portion removed from the racing hook 13) with an adhesive in a partial region, that is, an adhesive region 15 shown by a thick line in each drawing. The thin portion 12b is not adhered. Therefore, if the belt 11 travels in the direction indicated by the arrow A, for example, the cover member 14 is made of soft rubber, so that the cover roller 14 is stretched as if by the transport roller 3. As a result, the entire cover member 14 expands, but since one side, that is, the downstream side when viewed in the running direction of the belt 11, is not in contact, it extends without bending and a gap is formed with the belt 11. It will not be done. Therefore, the transport rollers 3 and the racing hooks 13 are not in contact with each other, and when each transport roller 3 transfers from the cover member 14 to the belt 11, the transport rollers 3 smoothly rotate without moving up and down, so that noise is not generated. By applying the belt 11 having the above-mentioned structure to the belt 1 described with reference to FIG. 4, it is possible to significantly reduce noise when the article is conveyed by the conveyor belt. Further, with the above-mentioned configuration, for example, when the cover member 14 is replaced, it can be replaced very simply by peeling off the adhesive region 15 described above, and when the racing hook 13 is replaced, the cover can be replaced. It is also possible to replace the member 14 without removing it.

Although the first embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, if the belt 11 travels in the direction opposite to the arrow A, the cover member 14 is bonded to the thin portion 12b side. Further, it is not limited to the one-sided adhesion, and the entire thin portions 12a and 12b may be adhered. Regarding the method of adhering the cover member 14, it is possible to apply an adhesive to the main part of the cover member 14 and then apply the adhesive to the thin portion 12a to adhere it, but a so-called double-sided adhesive tape is previously attached to the main part of the cover member 14. Alternatively, the release paper may be peeled off before being attached to the belt 11 and then attached. In any case, since the cover member 14 is a component different from the belt 11 and the cover member 14 can be stored as a repair component, it is necessary to replace the cover member 14 for long-term use. It is very convenient when

Next, a second embodiment of the present invention will be described with reference to FIG. The feature of this embodiment is that the cover member is divided into two parts and bonded to the thin portions 12a and 12b, respectively. Therefore, the members having the same functions as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted. That is, the size of each cover member 21a, 21b is set so as to cover the thin portions 12a, 12b and half of the racing hook 13, and the thickness thereof is set as described in the first embodiment. The cover members 21a and 21b are individually adhered to the thin portions 12a and 12b by an adhesive 15 shown by a thick line in FIG. 3, and are not in contact with each other on the racing hook 13. A gap G corresponding to the extension of each cover member 21 is provided at the seam of each cover member 21 just above the racing hook 13. Therefore, the entire thin portions 12a and 12b are completely covered by the respective cover members 21a and 21b, and the racing hook 13 is almost covered.

When the belt 11 travels in the direction of arrow A, the pressure is first applied to the cover member 21a by each of the conveying rollers 3, and the cover member 21a is made of soft rubber, so that the belt 11 is stretched downstream. As a result, the gap G formed between the cover member 21b and the cover member 21b is filled with the expansion of the cover member 21a, and there is substantially no gap. Then, the transport roller 3 moves from the cover member 21a to the cover member 21b by the traveling of the belt 11, but since the gap G is filled, rattling does not occur during transfer and noise does not occur. It should be noted that the gap G may not be formed on the assumption that it may extend depending on the material of the cover member, and it is very good that it is hardly formed.

When the belt 11 travels and comes into contact with the transport roller 3, the transport roller 3 applies pressure from the non-adhesive portion of the cover member 21b to the adhesive portion, but the gap between the non-adhesive portions is narrow. Therefore, wrinkling does not occur in this non-adhesive portion, and rattling and noise do not occur even when the transport roller 3 moves from the cover member 21a to the cover member 21b.

Even when the belt 11 travels in the direction opposite to the arrow A, noise is not generated by the same action as described above. As described above, in the present embodiment, the rotation direction of the belt 11 can be reversed by the configuration using the cover members 21a and 21b having a size half the width shown in FIG. With the cover members 21a and 21b, it is possible to reliably reduce the generation of noise. Further, the cover members 21a and 21b may have the same structure, and only one of them can be replaced if necessary. If the cover members 21a and 21b are stored as repair products, they can be replaced easily and in a short time when they need to be replaced. Therefore, it is possible to shorten the time for interrupting the transportation of the articles and improve the transportation efficiency.

In each of the above-mentioned embodiments, a pair of belts 11 are run in parallel, and the transport roller 3 that is in contact with the upper surface of the belts 11 is driven to rotate. It is not limited. For example, the present invention can also be applied to a conveyor belt configured so that a belt is widely formed and an article placed directly on the belt is conveyed. This type of conveyor belt has a structure in which a plurality of rotating rollers are arranged on the lower surface of the belt and the belt is run in a predetermined direction while supporting the belt under the belt. Therefore, in such a structure, by applying the present invention to the lower surface of the coupling portion of the belt, it is possible to reduce noise generation when the coupling portion and the rotating roller are in contact with each other.

In each of the above embodiments, the cover member is provided on one side, but in the present invention, the cover member may be provided on both the upper and lower surfaces. Further, in each of the above-mentioned embodiments, the cover member that covers the entire racing hook is used, but the present invention is not limited to such a configuration, and a structure in which a plurality of cover members are provided at predetermined intervals in the belt width direction, Even if the racing hook can be seen from the outside, the function of the present invention does not matter.

[0019]

[Effect of the device]

 As described above, the conveyor belt according to the present invention has thin portions formed at both ends of the belt to be connected by the racing hooks, and a part of the conveyor hook is covered with the cover member. It is a structure provided by bonding. Therefore, since the entire thin portion is filled with the cover member so as to have substantially the same thickness as the belt, the contact between the conveying roller and the lacing hook can be avoided, and the conveyor roller rotates and the cover member moves from the belt. No noise is generated when transferring to the belt, and when transferring from the cover member to the belt. Moreover, since the cover member is adhered to the thin portion, the replacement work can be easily performed, and the maintenance work of the racing hook portion can be facilitated. Therefore, the device using the conveyor belt of the present invention can be easily used. In addition, the articles can be exchanged for a long time without being stopped, and the efficiency of the transportation work can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a belt according to a first embodiment of the present invention.

2 is a cross-sectional view of a portion taken along line XX of FIG.
FIG. 3 is a cross-sectional view of the main parts showing the structure of the belt.

FIG. 3 is a sectional view of an essential part of a belt showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a structure of a conventional conveyor belt.

[Explanation of symbols]

 1, 11 Belt 3 Transport rollers 12a, 12b Thin portion 13 Racing hook 13a Hook member 13b Connecting rod 13c Claw portion 14, 21a, 21b Cover member 15 Adhesive A Belt running direction C Transport direction

Claims (1)

[Scope of utility model registration request] 1. A conveyor belt in which both end portions of a belt are joined endlessly by using a racing hook, at least one surface of each end portion of the belt is formed as a thin portion recessed from the belt surface, and the both end portions are A conveyor belt, characterized in that it is provided with a cover member connected to the racing hook and bonded to the thin portion so as to cover at least a part of the racing hook.