JPH07206351A - Handrail for moving passage - Google Patents

Abstract

PURPOSE:To perform gentle bending by a method wherein the strength and bending ability of the joint between strength members are presented from being inferior to those of other part, in a handrail for a moving passage with a built-in belt-like strength member. CONSTITUTION:A handrail for a moving passage being an example has structure wherein a decorative rubber layer 4 is integrally formed on a core 3 consisting of a lamination-mold reinforcing canvas layer 1 and a belt-like strength member 2, such as a steel tape, and joints 5 of the belt-like strength member are disposed in two spots. At an intermediate part between the two joints 5, the belt-like strength member 2 is nipped between the first and second layers and the second and third layers of canvas. At each joint 5, the end parts of the strength members 2 on both sides are overlapped with each other through a second layer canvas 1b.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to handrails for moving walkways such as escalators and moving walkways.

[0002]

2. Description of the Related Art Conventionally, handrails (handrails) used for moving passages such as escalators and moving walkways are
On a core body that has a built-in strength member and is laminated with adhesive rubber or the like of canvas such as cotton cloth and has a substantially C-shaped cross section,
It has a structure in which a decorative rubber layer is provided, and its end portions are joined together to form an endless shape. Here, as the strength member, a stranded wire in which strands of steel wire or aramid fiber is twisted is conventionally used, but recently, for the purpose of further increasing the strength by lengthening the moving passage, a steel strip is used. There is a case where a bendable belt-shaped strength member having a high tensile strength such as the above is used.

In order to obtain sufficient tensile strength, the end portions of the strip-shaped strength members are abutted and welded to each other, or the end portions are superposed on each other by a predetermined length in order to obtain sufficient tensile strength. The structure is such that it is directly bonded with an adhesive.

[0004]

However, in the structure in which the ends of the strength members of these joints are butt-welded, the tensile strength and bending strength of the welded parts are lower than those of other parts (non-bonded parts). In addition, there is a problem that it cannot be used in a place where a large amount of tension is applied or in a place where the bending conditions are severe because it is easily fatigued by pulling or bending.

Further, in the joint portion in which the strip-shaped strength members are superposed in the thickness direction and directly adhered to each other, the bending resistance of the joint portion becomes larger than that of the other portions, so that smooth running is difficult. Further, there is a problem that the strip-shaped strength member is excessively bent on both sides of the joint, and that portion is easily fatigued.

The present invention has been made in order to solve these problems, and in a handrail for a moving passage in which a strip-shaped strength member such as a steel strip is incorporated, the strength and bendability of the joint portion of the strength member are other. So that it is not inferior to
The purpose is to enable smooth bending.

[0007]

A handrail for a moving passage according to the present invention has a decorative rubber layer provided on a core body in which a belt-shaped strength member is built in and a canvas is laminated and formed to have a substantially C-shaped cross section. In the endless movement handrail, the joint portion of the strip-shaped strength member is provided at a plurality of locations, and the end portions of the two strip-shaped strength members sandwiched between the different laminated canvases on both sides at each joint portion. Is laminated and joined via an intermediate layer of the laminated canvas.

[0008]

In the handrail for a moving passage according to the present invention, the end portions of the handrail are provided with two or more joint portions of the strip-shaped strength member in the entire handrail.
The ends of two strip-shaped strength members arranged on both sides are overlapped and joined with a canvas layer sandwiched therebetween. That is, the strip-shaped strength members on both sides of each joint are sandwiched between canvases of different stacking orders, and the end portions of the strength members directly form one layer or two or more layers of canvas. The sandwiched sheets are overlapped with each other over an appropriate length and are integrally joined by a laminated material (adhesive rubber or the like) of canvas. In this way, at each joint of the strip-shaped strength members, since the canvas is interposed between the overlapping ends of the strength members, the bending resistance is small, and the same bending as other portions (non-bonded portions) is achieved. be able to. Therefore, abrasion or damage of the canvas or the like is prevented and the service life is long. Further, since the strip-shaped strength member is joined by the material for laminating the canvas and no special material such as a welding material or an adhesive is required, the cost is low and the work for forming the joint is easy. Furthermore, each joint of the strip-shaped strength member has sufficient tensile strength.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of the handrail for a moving passage according to the present invention, and FIG. 2 is a diagram schematically showing the whole embodiment. 3 and 4 are a sectional view taken along the line AA and a sectional view taken along the line BB in FIG. 1, respectively.

As shown in these figures, the handrail for a moving passage of the embodiment has a reinforcing canvas layer 1 laminated and formed so that its cross section has a substantially C shape, and a center portion in the width direction of the canvas layer 1. It has a structure in which a decorative rubber layer 4 is integrally provided on a core body 3 made up of a strip-shaped strength member 2 such as a built-in steel strip. It is provided in two places and formed in an endless shape. And
The arrangement position of the strip-shaped strength member 2 in the core body 3 is as shown below. That is, in the intermediate portion C between the two joint portions 5, as shown in FIG. 3, the strip-shaped strength member 2 is sandwiched between the first-layer canvas 1a and the second-layer canvas 1b from the inside. On the other hand, in the intermediate portion D, the strip-shaped strength member 2 is sandwiched between the second-layer canvas 1b and the third-layer canvas 1c from the inside. Then, at the two joint portions 5 of the strip-shaped strength member 2 arranged in this way, the strength member 2 sandwiched between the first layer and the second layer of the canvas, and the second layer and the third layer. Each end of the strength member 2 sandwiched between the eye and the eye is overlapped with a second layer of the canvas 1b interposed therebetween, and is integrally joined by a laminated material of the canvas layer 1. .

In the handrail for a moving passage according to the embodiment thus constructed, two joint portions 5 of the strip-shaped strength member 2 are provided throughout the endless-shaped handrail, and each joint portion 5 has the joint portion 5. Since the second layer of canvas 1b from the inside is interposed between the overlapping end portions of the strip-shaped strength member 2, the joint portion 5 is compared with the case where the end portions of the strip-shaped strength member are overlapped and directly bonded. It has a small bending resistance, and can be smoothly bent like the normal part other than the joint part. Therefore, wear and damage of the canvas layer 1 and the like are prevented, and the service life is long. Further, since the strip-shaped strength member 2 is joined by the laminated material of the canvas layer 1 and no special material such as a welding material or an adhesive is required, the cost is low and the forming work of the joint portion 5 is easy. is there. Furthermore, since each joint 5 has sufficient tensile strength, it can be used in a place where a large amount of tension is applied.

Generally, in a handrail for a moving passage, in order to reduce expansion and contraction of the reinforcing canvas layer 1 at the jaw portion 6 when bent, the band-shaped strength member 2 is arranged at a position as close as possible to the inner rail, that is, It is said that it is good to set it between the first and second layers from the inside of the canvas layer 1, but as a result of actually measuring the bending resistance, the strip-shaped strength member 2 is provided between the second and third layers of the canvas. Even with the above arrangement, the same measurement results as when the first arrangement and the second arrangement were provided were obtained. Therefore, in the intermediate portion D of the example, as well as the intermediate portion C, good flexibility is exhibited, and there is no problem in use.

In the above embodiment, the strip-shaped strength member 2 is used.
Although the example in which the two joint portions 5 are provided has been described, the number of the joint portions 5 provided is not limited to two. However,
When the number of joints 5 is set to an odd number (for example, three), the strip-shaped strength member 2 is provided between the third and fourth layers from the inside of the canvas layer 1 in at least one intermediate portion. It has to be provided, and is not preferable in terms of flexibility. Therefore,
It is preferable that the number of joints 5 provided is an even number, and it is more preferable that the number of joints 5 is two in terms of workability.

[0015]

As described above, in the handrail for a moving passage according to the present invention, two or more joint portions of a strip-shaped strength member such as a steel strip are provided, and each joint portion has two joints on both sides. The strength members sandwiched between canvases of different stacking order are superposed and joined together through the canvas layers, so the bending resistance of the joint is small, and it bends as smoothly as other non-joint parts. It has a long service life. Further, since no special material such as a welding material or an adhesive is required for joining the strip-shaped strength members, the cost is low and the forming operation is easy. Furthermore, since the joint portion of the strip-shaped strength member has sufficient tensile strength, it can be used in a place where a large amount of tension or bending is applied.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a handrail for a moving passage according to the present invention.

FIG. 2 is a diagram schematically showing the whole of the embodiment.

FIG. 3 is a sectional view taken along the line AA in FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

 1 ...... cloth layer 1a, 1b, 1c ....... cloth 2 ... strip-shaped strength member 4 ... decorative rubber layer 5 ......... joint part of strip-shaped strength member

Claims (1)

[Claims] 1. An endless handrail for a moving passage, comprising a decorative rubber layer provided on a core body in which a belt-shaped strength member is built-in and a canvas is laminated and formed to have a substantially C-shaped cross section. In addition to providing multiple parts joints,
At each joint, the ends of two strip-shaped strength members sandwiched between mutually different laminated canvases on both sides are superposed and joined through an intermediate layer of the laminated canvas, which is characterized by a movement. Handrails for passages.