JPH0616372U - Handrail - Google Patents

Abstract

(57) [Summary] [Purpose] Highly safe and prolong product life. [Structure] A decorative rubber layer 2 provided on the surface thereof, and a canvas layer 1 formed on the inside of the rubber layer 2 and laminated with canvas.
And a handrail having a C-shaped cross section, which is provided inside the canvas layer 1 and has a tensile strength core body 3 for preventing elongation in the longitudinal direction, has braided yarn on the outer circumference of the rubber tube on both side ears. It is characterized in that a braided bead 7 formed by winding is embedded. [Effect] The handrail can follow the compressive force applied to both ears when the handrail warps.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a handrail.

[0002]

[Prior art]

 FIG. 3 shows a conventional example of a handrail. As shown in the figure, the handrails used for escalators and auto lines are made by first impregnating canvas with resorcin resin, then topping with an unvulcanized rubber sheet, and then laminating multiple sheets of these. Thus, the canvas layer 1 is formed, and then the decorative rubber layer 2 is placed on the surface of the canvas layer 1, and finally the mold layer is integrally molded.

In order to prevent elongation inside the canvas layer 1, a tensile strength core 3 made of aramid fiber, steel wire or the like is interposed in the longitudinal direction, and bending properties are further improved in both ears of a C-shaped cross section. A round string-shaped bead rubber 4 was inserted.

[0004]

[Problems to be solved by the device]

 In general, the handrail bends during the operation of the escalator or auto line, and when it passes through the rotating parts such as the drive roller and rollers, it causes complicated deformation. At that time, it is necessary to prevent the handrail from coming off the guide rail, and cracks may occur in the left and right ears where the bending is large compared to the part that hits the body of the C-shaped cross section during inward warping or reverse warping. The peeling of the canvas layer must be prevented.

During operation, the ear portion of the handrail is repeatedly contracted by about 8% during inward warping and by about 4% during reverse warping. For this reason, it is required that both ears of the handrail have good flexibility during bending, but with the conventional handstring with a rubber cord-shaped bead rubber insertion, it is effective against the elongation at the time of reverse warping, but at the time of inward warping. No sufficient effect was obtained on the compression of. This caused abnormal deformation of the handrail ears during inward warping and increased running resistance during operation.

The present invention has been made in view of the above points, and an object of the present invention is to provide a handrail which has high safety and can prolong the life of the product.

[0007]

[Means for Solving the Problems]

 The above object is achieved by embedding a braided bead formed by winding a braided yarn around the outer circumference of a rubber tube on both side ears of the handrail.

[0008]

[Action]

 Since the above means is provided, the handrail can follow the compressive force applied to both ears when the handrail warps.

[0009]

【Example】

 Next, the present invention will be specifically described by way of examples.

Embodiment 1 FIGS. 1 and 2 show an embodiment of the present invention. Since the same parts as those of the conventional one are designated by the same reference numerals, the description thereof will be omitted. In this embodiment, a braided bead 7 formed by winding a braided yarn 6 around the outer circumference of a rubber tube 5 is embedded in both ears of the handrail. By doing so, the handrail can follow the compressive force applied to both ears during inward warping, and thus a handrail with high safety and long product life can be obtained. be able to.

That is, elastic braid beads 7 were embedded inside the both side ears of the handrail. This braided bead 7 is composed of a braided yarn 6 around a rubber tube 6. By doing so, it is possible to follow the compressive force applied to both ears when the handrail is warped and prevent abnormal deformation, and to reduce the change in ears when the C-shaped cross section is bent. Therefore, it is possible to obtain a handrail that can improve safety and prolong the product life.

As described above, according to this embodiment, since the stretchable braided beads are embedded inside the both side ears of the handrail, it is possible to follow the compressive force applied to both ears when the handrail warps. As a result, abnormal deformation can be prevented, and ear deformation due to bending of the C-shaped cross section can be reduced.

[0013]

[Effect of device]

 As described above, according to the present invention, the braid beads formed by winding the braided yarn around the outer circumference of the rubber tube are embedded in the both side ears of the handrail, so that the handrail is resistant to the compressive force applied to both ears during inward warping. This makes it possible to obtain a handrail that is highly safe and has a long product life.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a handrail according to the present invention.

FIG. 2 is a perspective view of the braided bead of the same embodiment.

FIG. 3 is a vertical sectional side view of a conventional handrail.

[Explanation of symbols]

 1 Canvas layer 2 Decorative rubber layer 3 Tensile strength core 5 Rubber tube 6 Braided yarn 7 Braided bead

Claims (1)

[Scope of utility model registration request] 1. A decorative rubber layer provided on the surface, a canvas layer formed on the inside of this rubber layer and laminated with a canvas, and interposed between the canvas layer and preventing the elongation in the longitudinal direction. A handrail having a C-shaped cross-section having a tensile strength core, wherein a braided bead formed by winding a braided yarn around an outer circumference of a rubber tube is embedded in both side ears of the handrail. .