JPH0620152U - Cableway pulley - Google Patents

Abstract

(57) [Abstract] [Purpose] A light-weight and low-cost cableway pulley is obtained by integrally molding a main body portion and a side surface holding portion of a rubber ring with plastic. [Structure] The body portion 1 and the side surface holding portion 2 are integrally molded of plastic, the inner surface of the rubber tire portion 4 is adhered to the body peripheral surface 1a, and both side surfaces of the rubber tire portion 4 are respectively bonded to the side surface holding portions 2 on both sides. Adhere by 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a circular main body portion having a bearing portion in the center, a rubber tire portion having an outer peripheral surface for guiding and supporting a ropeway rope to be mounted along the peripheral surface of the main body portion, and the rubber tire portion is a peripheral portion of the main body portion. The present invention relates to a cableway pulley for a lift or a gondola having side surface holding portions provided on the peripheral surface of the main body portion on both sides of the rubber tire portion so as to prevent the rubber tire portion from coming off the surface.

[0002]

[Prior art]

 In such a conventional pulley for a cableway, as shown in FIG. 1, the main body portion 11 and the side surface holding portion 12 are formed as separate metal portions, and the side surface holding portion 12 is provided on the peripheral surface 11a of the main body portion 11. In general, the rubber tire portion 14 is fixed to the peripheral surface 11a of the main body portion 11 by the elasticity of rubber while being fixed by the lock ring 13 and welding.

[0003]

[Problems to be solved by the device]

 However, since the conventional pulley for cableway is made of metal, for example, even if it is made of aluminum alloy, it is relatively heavy, and since post-treatment such as quenching treatment is required, the cost is also high. There are drawbacks.

Further, since the main body portion 11 and the side surface holding portion 12 are separate bodies, the number of assembling steps is correspondingly increased, which causes a cost increase.

Further, since the annular rubber tire portion 14 is attached to the peripheral surface 11a of the pulley body by friction simply by crimping fitting using rubber elasticity, the stress applied to the rubber tire portion 14 due to the tension of the cableway rope 15 The reaction is applied only to the inner surface of the rubber tire portion 14 that engages with the peripheral surface 11a of the main body portion, the rubber tire fatigues quickly, the rubber tire has a short life and needs to be replaced frequently.

Therefore, an object of the present invention is to obtain a cableway pulley that is lightweight, can be manufactured at low cost, and can extend the life of rubber tires.

[0007]

[Means for Solving the Problems]

 To achieve this object, the cableway pulley according to the present invention integrally forms the main body portion and the side surface holding portion with plastic, adheres the inner surface of the rubber tire portion to the peripheral surface of the main body, and It is characterized in that the side surfaces are respectively adhered to the side surface holding portions on both sides.

[0008]

[Action]

 According to the body part integrally formed with the side holding part according to the present invention, it can be manufactured in one molding process, and since the inner surface and both side surfaces of the rubber tire part are adhered to the surface of the body part and the side holding part, the cableway The stress applied to the rubber tire by the tension of the rope is supported not only on the peripheral surface of the main body but also on the wall surface of the side surface holding portion. Therefore, the holding efficiency is improved and the stress applied to the rubber tire is dispersed.

[0009]

【Example】

 Next, preferred embodiments of the present invention will be described with reference to the drawings.

According to the present invention, as shown in FIG. 2, the main body portion 1 of the pulley 10 and the side surface holding portion 2 that limits the side surface of the rubber tire are integrally molded from engineering plastic. A rubber tire portion 4 is arranged in an annular recess 3 formed by the main body portion 1 and the side surface holding portion 2, and the inner surface and the side surface of the rubber tire portion 4 are attached to the peripheral surface 1a of the main body portion 1 and the wall surface 2a of the side surface holding portion 2. Each is bonded by the adhesive 5.

In the illustrated embodiment, the depression 3 has a trapezoidal sectional shape, and the rubber tire portion has a trapezoidal sectional shape correspondingly. However, the depression has a rectangular sectional shape, and the rubber tire portion has a rectangular sectional shape. You can also do it.

According to the present invention, since the rubber tire portion is attached to the main body portion 1 by adhesion, the rubber tire portion does not necessarily have to be an annular body, and may be a plurality of annular body segments separated from each other. In this case, since it is not necessary to forcibly expand the annular body and then shrink the annular body, the mounting is extremely easy.

[0013]

[Effect of device]

 According to the present invention, since the main body portion and the side surface holding portion are integrally formed of plastic, it is lightweight, can be manufactured at a low cost and with a small number of manufacturing steps.

Further, since the inner surface and the side surface of the rubber tire portion are respectively bonded to the peripheral surface of the main body portion and the wall surface of the side surface holding portion, the stress applied to the rubber tire portion is dispersed over such a wide range, and the holding efficiency is improved, The life of the rubber tire part is extended.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a conventional cableway pulley.

FIG. 2 is a longitudinal sectional view of a cableway pulley according to the present invention.

[Explanation of symbols]

 1,11 Body part 1a, 11a Circumferential surface 2,12 Side holding part 2a Wall surface 3 Dimple 4,14 Rubber tire part 5 Adhesive 10 Pulley 13 Lock ring 15 Cableway rope

Claims (4)

[Scope of utility model registration request] 1. A circular main body portion having a bearing portion in the center,
A rubber tire portion having an outer peripheral surface for guiding and supporting a ropeway rope to be mounted along the peripheral surface of the main body portion, and the main body portion on both sides of the rubber tire portion so as to prevent the rubber tire portion from coming off the peripheral surface of the main body portion. In a cableway pulley having a side surface holding portion provided on the peripheral surface of the body, the body portion and the side surface holding portion are integrally molded of plastic, and the inner surface of the rubber tire portion is adhered to the body peripheral surface, and both sides of the rubber tire portion are bonded together. Pulleys for cableways, characterized in that the side surfaces of the above are respectively adhered to the side surface holding portions on both sides. 2. A cableway pulley according to claim 1, wherein the tire portion is a continuous annular body. 3. The cable pulley for a cableway according to claim 1, wherein the tire portion is a plurality of annular body segments separated from each other. 4. The cable pulley for a cableway according to claim 1, wherein the tire has a trapezoidal sectional shape.