JPH11106171A - Connecting method of handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve efficiency and industrial availability of connecting work by overlapping both of covering tension members in a state where a specific distance of arrangement pitches of their tension member element wires is slipped after integrally covering tension member parts of both end side terminal parts respectively by unvulcanized rubber. SOLUTION: A material of one side tension member element wire 4-2 and the other side tension member element wire 5-2 is a steel wire cord. A connecting part of a handrail exposes the one side and other side tension member element wires 4-2 and 5-2 to connect to each other by peeling an interface between a core body and decorative rubber of its both end parts. Thereafter, unvulcanized rubber is squeezed out around their circumference by a pressing machine or an unvulcanized rubber sheet is placed vertically, and it is applied by respectively pressing under unvulcanized rubber temperature. Thereafter, both of the unvulcanized rubber coating tension members of the both end side terminals parts are overlapped with each other in a state of slipping a distance of 1/2 of an arrangement pitch of the tension member element wires 4-2 and 5-2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for connecting a handrail. More specifically, the present invention relates to a method for connecting a handrail used as a moving handrail such as an escalator or an autorail.

[0002]

2. Description of the Related Art Escalators and autorails are widely installed in department stores, airports, stations and the like.

In these escalators and autorails, handrails are used as moving handrails.

FIG. 4 is a cross-sectional explanatory view of a conventional handrail.

In FIG. 4, 1 is a core body, 1-1 is a canvas, 1
-2 is a tension member, and 3 is a decorative rubber.

That is, the core body 1 is composed of a plurality of canvases 1-1 and a plurality of tension members 1-2 embedded at predetermined intervals between layers of the plurality of canvases 1-1.
The crossing cotton is substantially C-shaped.

When the handrail is used by being mounted on an escalator or an autorail, both ends are connected endlessly.

[0008] Here, endless connection of the handrail can be performed at the manufacturing stage, but in that case, productivity is low and practically hardly used.

Therefore, in general, a long handrail is first manufactured, and then the manufactured long handrail is cut into an endless length of an escalator to which the long handrail is mounted, and finally, both ends of the cut long handrail are cut. Endless connection to form an endless connection handrail.

By the way, since a handrail is run by a large number of passengers while touching it, the connection portion must endure a large tensile strength and be free from irregularities in terms of tactile sensation.

For this reason, several methods have been proposed for endless handrail connection.

For example, Japanese Unexamined Utility Model Publication No. Hei 4-133671 discloses a connection method in which a tension member is inserted into an insertion hole provided in an unvulcanized rubber attachment.

However, this connection method requires special production of an unvulcanized rubber attachment provided with an insertion hole. In this connection method, it is necessary to insert the tension members one by one into the insertion holes of the unvulcanized rubber attachment provided with the manufactured insertion holes, so that there is a drawback that the connection operation takes a lot of time.

[0014]

SUMMARY OF THE INVENTION The present invention has been made in view of such a point, and an object of the present invention is to solve the above-mentioned disadvantages of the prior art and to provide an unvulcanized rubber provided with an insertion hole. An object of the present invention is to provide a method for connecting a handrail, which does not require special manufacture of an attachment, can perform connection work quickly and easily, and can exhibit excellent tensile strength and a smooth surface after connection.

[0015]

SUMMARY OF THE INVENTION The gist of the present invention is that the tension members at both ends of the handrail to be connected are integrally coated with unvulcanized rubber, respectively. A handrail connection method is characterized in that both unvulcanized rubber-coated tension members at a terminal portion are overlapped with each other with a distance shifted by a half of an arrangement pitch of the tension member strands.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method for connecting a handrail according to the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional explanatory view showing a state in which both unvulcanized rubber-coated tension members at both ends are overlapped in one embodiment of a method for connecting a handrail according to the present invention, and FIG. FIG.

In FIG. 1 and FIG. 2, reference numeral 4 denotes a tension member coated with unvulcanized rubber on one side of a terminal on one side.
-1 is one-side canvas, 4-2 is one-side tension member strand, 5 is the other-side unvulcanized rubber-coated tension member of the other end to be connected, 5-1 is the other-side canvas, and 5-2 is the other. It is a side tension member strand.

Here, the material of the one-side tension member strand 4-2 and that of the other-side tension member 5-2 are both steel wire cords. That is, the connecting portion of the handrail according to one embodiment of the present invention is as follows. Connected like First, although not shown, the interface between the core and the decorative rubber at both ends of the handrail to be connected is peeled off.

Next, although not shown, the peeled core is disassembled into a canvas layer and a tension member to be exposed.

As a result of this disassembly operation, one side of the core member is exposed to the one-side tension member 4-2, and the other side is connected to the other-side tension member wire 5-
2 is exposed.

Next, although not shown, the exposed one-side tension member strand 4-2 and the other-side tension member strand 5-2 are respectively coated with unvulcanized rubber.

The unvulcanized rubber can be coated by extruding the unvulcanized rubber around the one-side tension member strand 4-2 by an extruder, or by unextruding the unvulcanized rubber above and below the one-side tension member strand 4-2. The vulcanized rubber sheet is placed and then coated by pressing at a temperature at which it does not cure.

Next, as shown in FIGS. 1 and 2, both of the unvulcanized rubber-coated tension members at the end portions on both ends are overlapped while being shifted by a distance of 配 列 of the arrangement pitch of the tension member strands.

Next, although not shown, the exposed canvas layers are connected to each other.

Next, although not shown, the exposed decorative rubber layer is connected.

Next, although not shown, the thus configured connection portion is press-vulcanized at a high temperature.

FIG. 3 is an explanatory cross-sectional view showing a tension member layer portion of a handrail connecting portion obtained by press-vulcanizing the thus-formed connecting portion at a high temperature.

In FIG. 3, reference numeral 6 denotes a tension member layer,
4-2 is a tension member element wire of one terminal, 5-2.
Is a tension member strand at the other end, and 6-1 is a vulcanized rubber part.

As can be seen from FIG. 3, by press vulcanization at a high temperature, the tension member layer 6 is formed into a tension member strand 4-2 at one end and a tension member strand 5-2 at the other end. Are alternately horizontal. The horizontal linear tension member is thus integrally coated with the vulcanized rubber 6-1.

As described above, since the tension member layer portion 6 is formed in a horizontal straight line, there is no increase in the thickness of the connection portion due to the overlapping connection, no unevenness, and the tensile strength is large. It can be performed quickly and easily without trouble.

In the present invention, in order to eliminate the increase in the thickness of the connection portion and the unevenness in the overlapping connection portion as described above, the tension member wires 4-2 of the one terminal portion and the tension member wires of the other terminal portion are used. 5-2 are arranged at a pitch larger than their element wire diameter.

In the embodiment of the handrail connecting method according to the present invention shown in FIGS. 1 and 2, the tension members at both ends are cut at right angles to the buried longitudinal direction and connected. However, it may be cut diagonally, in which case there is an advantage that the stress concentration during practical use of the handrail operation can be dispersed.

[0034]

According to the method for connecting a handrail of the present invention, even if the terminal portions on both ends are overlapped and connected, the tension member layer of the connection portion can be made horizontal and straight, and as a result, the thickness of the connection portion is reduced. It is industrially useful because there is no increase or unevenness and the connecting portion has a high tensile strength.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view showing a state in which both unvulcanized rubber-coated tension members at both ends are overlapped in one embodiment of a method for connecting a handrail according to the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is an explanatory cross-sectional view of a vulcanized rubber-coated tension member layer obtained by press-vulcanizing the overlapped product of FIG. 1 at a high temperature.

FIG. 4 is an explanatory cross-sectional view of a handrail.

[Explanation of symbols]

 Reference Signs List 1 core body 1-1 canvas 1-2 tension member 3 decorative rubber 4 one-side unvulcanized rubber-coated tension member 4-1 one-side canvas 4-2 one-side tension member strand 5 other side unvulcanized rubber-coated tension member 5-1 The other side canvas 5-2 The other side tension member strand 6 The tension member layer section 6-1 The vulcanized rubber section

Claims (2)

[Claims] 1. A decorative rubber layer, a canvas layer at both ends of a handrail, wherein decorative rubber is fixed to an upper layer of a core body in which a tension member layer is buried between a plurality of canvas layers.
After disassembling and exposing the tension member layers, respectively, first connect the exposed tension members, then connect the exposed canvas layers, then connect the exposed decorative rubber layers, and then connect them under high temperature. In the method of connecting a handrail to be press-vulcanized, the step of connecting the exposed tension members includes first covering both of the exposed tension members integrally with unvulcanized rubber, and then uncovering the one end portion. The unvulcanized rubber-coated tension at the other end is shifted from the upper surface of the vulcanized rubber-coated tension member by half the pitch of the tension member strand arrangement pitch of the unvulcanized rubber-coated tension member at the one end. A method for connecting a handrail, wherein members are overlapped. 2. The method of connecting a handrail according to claim 1, wherein the tension members at both end portions are cut obliquely with respect to the longitudinal direction in which the tension members are embedded.