TW201839290A - Strip-like belt and endless belt - Google Patents

Abstract

Provided are a strip-like belt that allows easy joining on-site where the belt is used, and an endless belt capable of suppressing reduction in durability. This strip-like belt (10A) comprises a strip-like belt body (12) which is formed from a thermosetting resin and joint portions (14) and (16) which are disposed at least one end of the belt body (12). The joint portions (14) and (16) are formed from a thermoplastic resin.

Description

Ribbon belt and seamless belt

The present invention relates to a belt belt and a seamless belt.

The seamless belt system is used for a conveyance belt in a conveyance device such as a financial terminal device, an automatic ticket gate machine, or a ticket vending machine. The seamless belt is a belt made of a thermosetting plastic such as a rubber material (for example, a woven fabric) and a thermosetting plastic such as rubber (for example, Patent Document 1). [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2016-038010

However, in the case of Patent Document 1, since the thermosetting plastic is used as the main material, it is necessary to join the adhesive portions of the thermoplastic plastics, and there is a problem that the work becomes complicated. When the seamless belt used for the conveying device is replaced, the conveying device has to be stopped in the replacement belt. Therefore, it is desirable to change the working time of the belt as short as possible. Moreover, the hot plastic plastic is melted into a seamless joint, and the seam of the thermosetting plastic and the thermoplastic plastic is faster than that of the seamless belt formed of the thermosetting plastic. Deterioration, there is concern about poor durability.

An object of the present invention is to provide a belt-like belt which can be easily joined in the field where a belt is used, and a seamless belt which can suppress a decrease in durability.

The belt belt system of the present invention comprises: a belt body formed in a strip shape and formed of a thermosetting plastic; and a joint portion provided at at least one end of the belt body; and the joint portion is formed of a thermoplastic plastic.

The seamless belt system of the present invention comprises: a belt body formed in a strip shape and formed of a thermosetting plastic; and a fusion portion provided between both end portions of the belt body; the fusion portion being thermoplastic The plastic is formed with a valley-shaped recess at both ends, and the belt system has a mountain-like convex portion complementary to the concave portion at both ends, and the fusion portion and the belt body are in the concave portion and the convex portion Engage. [Effect of the invention]

According to the present invention, the joint portion is previously joined to the belt body, so that the joint belt can be obtained by joining one portion, and therefore, the belt belt can be easily connected in the field to be used. The fusing portion is formed by the concave portion so that the force in the thickness direction is dispersed in the width direction, thereby preventing breakage due to the force acting in the thickness direction of the belt, and suppressing the deterioration of durability.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The belt-shaped belt 10A shown in Fig. 1 includes a belt main body 12, a first joint portion 14 provided at a first end portion 13 as one end of the belt main body 12, and a second joint portion 16 which is provided for It is the second end 15 of the other end. The belt body 12 is a band-shaped member formed of a thermosetting plastic such as a kneaded polyurethane or a polyurethane elastomer. The first end portion 13 is a first convex portion 18 having a convex shape in the longitudinal direction. The second end portion 15 is a second convex portion 19 having a convex shape in the longitudinal direction. The first convex portion 18 and the second convex portion 19 are formed in a sharp mountain shape toward the tip end. The first convex portion 18 and the second convex portion 19 are formed by arranging the center of the belt main body 12 in the width direction as two sides. The first end portion 13 and the second end portion 15 have only one of the first convex portion 18 and the second convex portion 19 (mountain shape) in the width direction. The first convex portion 18 and the second convex portion 19 are formed by punching the first end portion 13 and the second end portion 15 of the belt main body 12.

The first joint portion 14 and the second joint portion 16 are formed of a thermoplastic plastic, for example, a polyurethane elastomer, a polyamide elastomer, a polyester elastomer, a polychlorinated phenyl elastomer, or a polyolefin elastomer. Plate member. The width of the first joint portion 14 and the second joint portion 16 is long, and is the same as the width of the belt body 12. The first joint portion 14 has a first recess 20 at one end on the side joined to the first end portion 13 and a first flat portion 22 at the other end. The first recessed portion 20 has a valley shape complementary to the mountain shape of the first convex portion 18, and is joined without being separated from the first convex portion 18. The first joint portion 14 has only one of the first recesses 20 (valley) in the width direction. The second joint portion 16 has a second recess portion 21 at one end on the side joined to the second end portion 15 and a second flat portion 23 at the other end. The second recessed portion 21 has a valley shape complementary to the mountain shape of the second convex portion 19, and is joined in a state where there is no gap between the second convex portion 19 and the second convex portion 19. The second joint portion 16 has only one second recess portion 21 (valley) in the width direction.

The first joint portion 14 and the second joint portion 16 will be described with reference to Fig. 2 . Since the first joining portion 14 and the second joining portion 16 are different in direction only, the first joining portion 14 will be described as a representative. When the length L1 of the first joint portion 14 is long, the workability at the time of joining can be improved. The length L1 of the first joint portion 14 is preferably 10 mm or more. The first recessed portion 20 has a center in the width direction of the first joint portion 14 as an apex, and is formed by two sides of a triangle. It is preferable that the length L2 of the first joint portion 14 from the first flat portion 22 to the bottom of the first recess portion 20 is 1 mm or more. When the length L2 is 1 mm or more, the first joining portion 14 and the second joining portion 16 can be melted in a state where there is no gap between the first flat portion 22 and the second flat portion 23.

The angle θ between the both sides of the first recess 20 is preferably 30° or more and 120 degrees or less. When the angle θ is 30° or more, the longitudinal length of the portion where the first joint portion 14 and the first end portion 13 are melted does not become too long. When the angle θ is 120 degrees or less, the joint area between the first joint portion 14 and the first end portion 13 can be sufficiently ensured.

Next, a method of making the belt-shaped belt 10A of the present embodiment a seamless belt will be described. First, after the first flat portion 22 and the second flat portion 23 are butted, the first end portion 13 and the second end portion 15 are placed on the upper surface of the lower mold (not shown). The first joining portion 14 and the second joining portion 16 are disposed in a state in which the first flat portion 22 is in contact with the second flat portion 23 or in a state in which the first flat portion 22 is partially overlapped in the thickness direction. Next, the upper mold is placed on the first joint portion 14 and the second joint portion 16, and heated in the thickness direction by a pressurizing body (not shown) for a predetermined period of time. As a result, the first joint portion 14 and the second joint portion 16 are melted to be fluidized.

Next, the first joining portion 14 and the second joining portion 16 are solidified by cooling the lower mold and the upper mold, and as shown in Fig. 3, the welded portion 24 is formed. As a result, the first end portion 13 and the second end portion 15 are joined by the fusion portion 24, and the seamless belt 25 is formed.

In the case of the present embodiment, the first joint portion 14 and the second joint portion 16 are joined to the belt main body 12 in advance, and therefore, by joining one of the first joint portion 14 and the second joint portion 16, A seamless belt 25 is obtained. Therefore, the joint can be made only at one place, so that the belt belt 10A is attached to the site to be used, and can be easily connected.

Compared with thermosetting plastics, thermoplastic plastics have higher hardness. Therefore, the strength of the force in the thickness direction is lowered between the fusion portion 24 and the first end portion 13 and the second end portion 15 as compared with the belt main body 12. In the case of the present embodiment, the fusion portion 24 is configured to disperse the force in the thickness direction in the width direction by the first concave portion 20 and the second concave portion 21. Therefore, the seamless belt of the present embodiment can prevent breakage due to the force acting in the thickness direction of the belt, and can suppress the deterioration of durability.

(Modifications) The present invention is not limited to the above-described embodiments, and can be appropriately modified within the scope of the present invention.

In the case of the above-described embodiment, the case where the belt-shaped belt 10A includes the first joint portion 14 and the second joint portion 16 has been described, but the present invention is not limited thereto. For example, as shown in FIG. 4, the belt belt 10B may include only one joint portion 26. The belt belt 10B shown in the figure includes a belt main body 12 and a joint portion 26 provided on the second end portion 15. The first end portion 13 has only the first convex portion 18 and is not provided with a joint portion. The joint portion 26 has a first recess 20 at one end and a second recess 21 at the other end. The second recess 21 is joined to the second projection 19 . The belt belt 10B is joined to one of the first recessed portion 20 and the first convex portion 18, whereby the first end portion 13 and the second end portion 15 can be joined. Since the joint portion 26 has the first recessed portion 20 and the second recessed portion 21, the same effects as those of the above-described first embodiment can be obtained.

In the case of the above-described embodiment, the first joint portion 14 and the second joint portion 16 have been described, and the directions are different, and the others are the same. However, the present invention is not limited thereto. For example, the belt belt 10C shown in Fig. 5 includes a belt main body 12, a first joint portion 14 provided at the first end portion 13, and a second joint portion 28 provided at the second end portion 15, and The first joint portion 14 has a longer longitudinal length than the first joint portion 14. The length of the second joint portion 28 is preferably at least 10% or more of the length of the belt body 12. The second joint portion 28 has the above-described length, whereby the length of the seamless belt can be appropriately adjusted in accordance with the machine for providing the belt. Therefore, the belt belt 10C can improve versatility.

In the case of the above-described embodiment, the first recessed portion 20 (second recessed portion 21) has a center in the width direction of the first joint portion 14 (second joint portion 16) as a vertex, and is formed by two sides of a triangle. However, the present invention is not limited to this. For example, as shown in FIG. 6A, the first concave portion (second concave portion) 34 may have a position on one side in the width direction of the first joint portion (second joint portion) 32 as a vertex, and may be formed on both sides of a triangle. As shown in FIG. 6B, the first joint portion (second joint portion) 33 forms a contact between the two sides of the valley-shaped triangular portion of the first recessed portion (second recessed portion) 35 and the side of the belt main body, and may be deviated to The length direction of the belt body.

As shown in FIG. 6C, the first recess (second recess) 40 may have an arc shape. The radius of curvature r of the first concave portion (second concave portion) 40 having an arc shape is preferably W/2 < r < ∞.

In the case of the above-described embodiment, the first joint portion 14 (second joint portion 16) is described in the first recess 20 (second recess portion 21) provided at one end, and the first projection of the belt body. The portion 18 (the second convex portion 19) is joined, but the present invention is not limited thereto. For example, as shown in FIG. 7A, the first joint portion (second joint portion) 42 may be joined to the belt main body 12 in the flat portion 44. The flat portion 44 shown in the figure is a straight line in the longitudinal direction of the straight belt body 12. In this case, the belt body 12 has a straight portion 46 that is orthogonal to the longitudinal direction. The flat portions 44, 46 are not limited to the straight line shape of the straight belt body 12. The first joint portion (second joint portion) 48 shown in Fig. 7B has a flat portion 50 that is inclined with respect to the direction of the orthogonal longitudinal direction. In this case, the belt body 12 has a flat portion 52 that is inclined to complement the flat portion 50.

The first joint portion (second joint portion) may be joined to the belt body in the mountain-shaped convex portion. In this case, the belt system has a valley-like recess complementary to the above-mentioned convex portion. The outer angle θ1 of the above convex portion is preferably 180° < θ1 < 330°.

10A, 10B, 10C‧‧‧belt belt

12‧‧‧ Belt body

13‧‧‧1st end

14‧‧‧1st joint (joint)

15‧‧‧2nd end

16‧‧‧2nd joint (joint)

18‧‧‧1st convex

19‧‧‧2nd convex

20‧‧‧1st recess

21‧‧‧2nd recess

24‧‧‧Fuse Department

25‧‧‧Seamless belt

26, 28‧‧‧ joints

Fig. 1 is a perspective view showing a belt belt of the embodiment. Fig. 2 is a plan view showing the end portion of the belt belt of the embodiment. Fig. 3 is a perspective view showing a joint portion of the seamless belt of the embodiment. Fig. 4 is a perspective view showing a modified example (1) of the belt belt of the embodiment. Fig. 5 is a perspective view showing a modified example (2) of the belt belt of the embodiment. Fig. 6 is a plan view showing an end portion of a belt belt according to a modification of the embodiment; Fig. 6A shows a modification (3); Fig. 6B shows a modification (4); and Fig. 6C shows a modification (5) ) The map. Fig. 7 is a plan view showing an end portion of a belt-like belt according to a modification of the embodiment; Fig. 7A shows a modification (6); and Fig. 7B shows a modification (7).

Claims (6)

A belt belt comprising: a belt body formed in a strip shape and formed of a thermosetting plastic; and a joint portion provided at at least one end of the belt body, wherein the joint portion is formed of a thermoplastic plastic. The belt-shaped belt according to claim 1, wherein the joint portion has one end and has a valley-shaped first recess, and the belt system has a mountain-shaped portion complementary to the first recess at one end. In the first convex portion, the joint portion and the belt main body are joined to each other in the first concave portion and the first convex portion. The belt-shaped belt according to claim 2, wherein the joint portion has a valley-shaped second recess at the other end that is not joined to the belt body, and the belt system has the other end. A mountain-shaped second convex portion complementary to the second concave portion. The belt-shaped belt according to any one of claims 1 to 3, wherein the length of the joint portion is 10 mm or more. The belt-shaped belt according to any one of claims 1 to 3, wherein the joint portion has: a first joint portion provided at one end of the belt body; and a second joint portion provided At the other end of the belt body, the length of the second joint portion is longer than the first joint portion, and is at least 10% or more of the length of the belt body. A seamless belt comprising: a belt body formed in a strip shape and formed of a thermosetting plastic; and a fusion portion disposed between the two ends of the belt body, wherein the fusion portion is formed of a thermoplastic plastic a groove having a valley shape at both ends, wherein the belt system has a mountain-shaped convex portion complementary to the concave portion at both ends, and the fusion portion and the belt body are joined to the concave portion and the convex portion .