JP5145118B2 - Manufacturing method of moving handrail of passenger conveyor and connecting portion processing apparatus - Google Patents

Description

  The present invention relates to a method for manufacturing a moving handrail used for a passenger conveyor and a connection processing apparatus for the moving handrail.

  A moving handrail used for passenger conveyors such as escalators and moving walkways is made of a single-layer or multi-layer thermoplastic elastomer having a C-shaped cross section, and a metal strip provided along the longitudinal direction of the thermoplastic elastomer. It can be obtained by connecting both ends of a linear belt formed by integrally forming the tensile body of the material and the base material bonded to the inside, and processing them into an integral endless shape. A process of removing a part of the elastomer is necessary (for example, see Patent Document 1).

Japanese Patent Laying-Open No. 2004-224504 (paragraph 0013, FIG. 2)

  In the process of removing a part of the thermoplastic elastomer from the molded body in the processing process according to the conventional technique as described above, firstly, a cutting process for separating the base material and the metal tensile body is necessary, but it occurs during the processing. Because the thermoplastic elastomer becomes cutting powder due to heat and makes the cutting blade dull, it is necessary to devise measures such as slowing the processing speed so that the temperature does not rise too much during processing, and processing time will be longer There was a problem.

  The present invention has been made to solve the above-described problems of the prior art, and suppresses an increase in heat generated during processing, suppresses abrasion of the cutting blade, and shortens the processing time. It aims at obtaining the manufacturing method and connecting part processing apparatus of the moving handrail of a passenger conveyor.

A method of manufacturing a moving handrail for a passenger conveyor according to the present invention includes a single-layer or multi-layer thermoplastic elastomer that is formed in a C-shaped cross section and in which a strip-shaped tensile body is provided along the longitudinal direction. When connecting the ends of the linear belts constituting the moving handrail of the passenger conveyor formed integrally with the base material joined to the inside of the thermoplastic elastomer, the heat at the end of the belt is connected. A process of cutting the plastic elastomer from both sides in the direction perpendicular to the longitudinal direction of the belt with a cutting tool and expanding the cut part with a peeling member is included.
The connection part processing device of the moving handrail of a passenger conveyor according to the invention is formed sectional C-shaped, single-layer or multilayer heat strip tensile member therein is provided along the longitudinal direction An end of a linear belt constituting a moving handrail of a passenger conveyor in which a plastic elastomer and a base material bonded to the inside of the thermoplastic elastomer are integrally formed is arranged in a direction perpendicular to the longitudinal direction of the belt. An incision blade that is incised from both sides and a peeling member that widens a site incised by the incision blade.

According to the method for manufacturing a moving handrail of a passenger conveyor according to the present invention, the end portions of the belt constituting the moving handrail which is formed in a C-shaped cross section and is integrally formed with a thermoplastic elastomer and a base material are connected to each other. When cutting the thermoplastic elastomer at the end of the belt from both sides in the direction orthogonal to the longitudinal direction of the belt using an incision blade, the process includes expanding the incised portion using a peeling member. Therefore, when the belt having a C-shaped cross section is processed, an increase in heat generated is suppressed, wear of the cutting blade is suppressed, and the processing speed can be increased to shorten the processing time.
Moreover, in the connection part processing apparatus of the moving handrail of the passenger conveyor which concerns on this invention, the edge part of the belt which comprises the moving handrail in which the thermoplastic elastomer and the base material were shape | molded integrally formed in the cross-sectional C-shape. By providing a cutting blade for cutting from both sides in a direction perpendicular to the longitudinal direction of the belt, and a peeling member for expanding a portion cut by the cutting blade , when processing a belt having a C-shaped cross section, The temperature rise of the cutting blade generated during processing is suppressed, and the processing time can be shortened by increasing the processing speed.

Embodiment 1 FIG.
1-4 is a figure explaining the manufacturing method and connection part processing apparatus of the moving handrail of the passenger conveyor which concern on Embodiment 1 of this invention, FIG. 1 is the perspective view which shows the cross section of the belt which comprises a moving handrail. FIGS. 2 and 2 are perspective views showing an end processing state before connection when the belt shown in FIG. 1 is endlessly connected, (a) is one end side, and (b) is the other end. Indicates side. FIG. 3 is a side cross-sectional view conceptually showing a processing state by the connecting portion processing apparatus, and FIG. 4 is a plan view showing a main part of the connecting portion processing apparatus shown in FIG. In the figure, a belt 1 constituting a moving handrail of a passenger conveyor is formed in a C-shaped cross section, and a belt-like tensile body 2 in which a plurality of steel wires are bundled is provided along a longitudinal direction. The plastic elastomer 3 and the base material 4 made of a canvas joined to the inside of the thermoplastic elastomer 3 are formed of a linear body integrally formed, and both ends thereof are connected to each other and formed into an annular shape. It is done. In this example, the thermoplastic elastomer 3 is formed in a multilayer structure of a surface layer thermoplastic elastomer 31 and an inner layer thermoplastic elastomer 32, but may be a single layer structure.

  For connecting the end 1A and the end 1B of the belt 1 constituting the moving handrail as described above, as shown in FIG. 2, first, for example, the surface thermoplastic elastomers 31A and 31B of the ends 1A and 1B and the inner layer heat are used. After removing the plastic elastomers 32A and 32B to expose the base materials 4A and 4B and the tensile bodies 2A and 2B, and then separating the steel wires constituting the tensile body 2 one by one, a known wire knitting machine or the like Join by the method. After joining the tensile bodies 2A and 2B and pasting the application cloth on the base materials 4A and 4B, both ends 1A and 1B of the belt 1 are placed in a mold not shown in the figure, and injection molding or press molding is performed. A surface layer is formed with a thermoplastic elastomer by a known method such as the above, and an integrally formed annular moving handrail is completed. When removing the surface layer thermoplastic elastomers 31A, 31B and the inner layer thermoplastic elastomers 32A, 32B at the end portions 1A, 1B, it is necessary to cut up and down the tensile body 2 in a so-called three-sheet lowering manner.

A typical feature of the present invention lies in the process of exposing the tensile body 2 and the base material 4 when the ends of the belt 1 are connected to each other. The method and apparatus will be specifically described below.
As shown in FIGS. 3 and 4, the connecting part processing device 10 for the moving handrail of the passenger conveyor has arrows A <b> 1 and A <b> 2 arranged symmetrically on both sides in a direction orthogonal to the longitudinal direction of the linear belt 1. Cutting blades 11, 12 each consisting of a pair of disc-shaped rotary blades that rotate in the respective directions, and disposed on the front side (left side) in the moving direction B of the belt 1 with respect to the pair of cutting blades 11, 12. A peeling member 13 having a cutting edge 13a is provided at the right end in the figure. The interval t between the cutting blades 11 and 12 is separated so that the contact portion between the thermoplastic elastomer 3 and the tensile body 2 remains with a width of about 5 mm or less.

  As shown in FIG. 4, the peeling member 13 is formed in a mountain shape that protrudes in the cutting direction (right side in the figure) so that the central portion in the width direction enters between the pair of cutting blades 11, 12. Are formed in a wedge shape when viewed from the side, and both ends of the cutting blades 11 and 12 are cut open by the cutting blades 11 and 12, and the connecting portion between the tensile body 2 and the thermoplastic elastomer 3 is left at the center. It has a function of spreading the thermoplastic elastomer 3 and the tensile body 2 so as to jump upward while being separated so as to be peeled off by the cutting edge 13a. The inclination angle of the wedge-shaped cross section of the peeling member 13 is preferably in the range of about 5 ° to 45 ° in order to reduce the load during peeling. A driving source for rotating the cutting blades 11 and 12, a feed mechanism for holding the end of the belt 1 and moving it relative to the connecting portion processing apparatus 10 in the left direction in FIG. Since the technology can be used without any particular limitation, illustration and description are omitted.

  Next, the operation of the first embodiment configured as described above will be described. The cutting blades 11 and 12 of the connecting portion processing apparatus 10 are rotated in the directions of arrows A1 and A2 by a driving source (not shown), and one end of the belt 1 is moved from left to right as indicated by arrow B in FIGS. The incision blades 11 and 12 that rotate from both sides of the belt 1 are inserted so that the joining portion of the thermoplastic elastomer 3 and the tensile body 2 remains with a width of 5 mm or less. Incision 3 is made. Thereafter, when the end of the belt 1 is further moved in the direction of the arrow B, the incision is made while the joining portion of the plastic elastomer 3 and the tensile body 2 left by the cutting edge 13a of the peeling member 13 with a width of 5 mm or less is peeled off. As shown in FIG. 3, the thermoplastic elastomer 3 and the tensile body 2 at the portion thus formed are spread so as to spring up. Thereafter, the thermoplastic elastomer 3 is removed in the same manner as in the prior art to expose the tensile body 2 and the base material 4, and processing is performed as shown in FIG.

  In the state where there is no peeling member 13 as in the prior art, the cutting blades 11 and 12 are in contact with the thermoplastic elastomer 3 before and after the cutting direction, so that the load on the cutting blades 11 and 12 increases, and the processing temperature is high. On the other hand, in the first embodiment, the thermoplastic elastomer 3 and the tensile body 2 are spread so as to jump upward, so that the load on the cutting blades 11 and 12 is concentrated forward in the cutting direction. The load is reduced, and therefore the temperature rise is also suppressed. Similarly, the other end side (end portion 1B) of the belt 1 is exposed to the tensile body 2 and the base material 4 and processed as shown in FIG. Thereafter, the connection is made using a known appropriate conventional technique such as Patent Document 1.

  As described above, according to the method for manufacturing the moving handrail of the passenger conveyor according to the first embodiment, the plastic elastomer 3 is cut with the cutting blades 11 and 12, and the cut portion is moved upward with the peeling member 13. By including the process of spreading so as to jump up, the load on the cutting blades 11 and 12 at the time of processing is reduced, and the increase in processing temperature due to heat generated during processing can be suppressed, It also leads to a reduction in the environmental impact of the production process itself. For this reason, the processing time can be shortened by increasing the processing speed. Further, since the wear of the cutting blades 11 and 12 can be reduced, the life of the cutting blades 11 and 12 can be extended, and the effect of reducing maintenance and management costs can be obtained. In addition, in the incision process, the joining portion of the thermoplastic elastomer 3 and the tensile body 2 is left with a width of 5 mm or less, so that the load on the cutting edge 13a of the peeling member 13 can be reduced. Further, since the inclination angle of the wedge-shaped cross section of the peeling member 13 is set to 5 ° to 45 °, the load at the time of peeling can be reduced.

Further, when the joining portion between the plastic elastomer 3 and the tensile body 2 is spread by the peeling member 13, the cutting powder is discharged, so that the clogging of the cutting blades 11 and 12 due to the cutting powder can be reduced and stable. An incision surface can be obtained, and the effect of simplifying the molding process when connecting both ends to complete an endless moving handrail can be obtained.
Moreover, in the connection part processing apparatus of the moving handrail of the passenger conveyor which concerns on Embodiment 1, the cutting blades 11 and 12 which cut | disconnect the edge part of the linear belt 1, and the site | part cut | disconnected by this cutting blade By providing the peeling member 13 that spreads out, the temperature rise of the cutting blades 11 and 12 generated during the processing can be suppressed, the processing speed can be increased, the processing time can be shortened, and the energy consumption can be reduced. The effect is also connected to reduction.

Embodiment 2. FIG.
FIG. 5 is a plan view conceptually showing a main part of the connecting part processing device for a moving handrail of a passenger conveyor according to Embodiment 2 of the present invention. Note that the same or corresponding parts are denoted by the same reference numerals throughout the embodiments. In the figure, a pair of cutting blades 11 and 12 made of disk-shaped rotary blades are arranged on both sides in a direction intersecting with the longitudinal direction of the linear belt 1 while shifting the positions in the longitudinal direction. The blades 11 and 12 are provided such that the blade edges overlap each other when viewed from the cutting direction C. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  In the second embodiment configured as described above, the thermoplastic elastomer 3 is cut by disposing the pair of cutting blades 11 and 12 so that their longitudinal positions are shifted so as to overlap with the cutting direction. Sometimes, the joint between the thermoplastic elastomer 3 and the tensile body 2 does not remain. Accordingly, since it is not necessary for the peeling member 13 to cut the thermoplastic elastomer 3 in the peeling process, the cutting edge 13a of the peeling member 13 is also unnecessary, and the peeling member 13 simply moves the cut thermoplastic elastomer 3 and the tensile body 2 upward. It can be constituted by a block member having a simple wedge-shaped cross-section for spreading so as to jump up. Therefore, according to the configuration of the second embodiment, in addition to the effect of the first embodiment, an effect of reducing the maintenance / management cost of the peeling member 13 can be obtained.

Embodiment 3 FIG.
FIG. 6: is a side view which shows the peeling member which is the principal part of the connection part processing apparatus of the moving handrail of the passenger conveyor which concerns on Embodiment 3 of this invention. In the figure, the peeling member 13 is provided with an air blow vent 13b for forcibly discharging cutting powder to the outside. It is configured to be supplied in the direction. Other portions are configured in the same manner as in the first or second embodiment. Note that when the cutting blades 11 and 12 are arranged shifted in the longitudinal direction as in the second embodiment, the cutting edge 13a may not be provided.
In the third embodiment configured as described above, the cutting powder generated when the thermoplastic elastomer 3 is cut by the cutting blades 11 and 12 shown in FIG. (Not shown) is forcibly discharged outside. For this reason, clogging of the cutting blades 11 and 12 is further suppressed, and a more stable cutting surface can be obtained.

  In the first to third embodiments, a pair of disk-shaped rotary blades are used as the cutting blades. For example, a linear so-called saw blade or an endless belt-shaped saw blade may be used. Even in the case, the same effect can be obtained. Further, it goes without saying that it can be used not only when one end and the other end of one belt 1 are connected but also when a plurality of belts are joined together. Further, the incision process and the peeling process are described as being performed in one step, but the present invention is not necessarily limited thereto, and may be performed in a plurality of steps. For example, the upper portion of the tensile body 2 is first incised, After peeling off, the substrate 4 under the tensile body 2 may be incised and peeled off.

The perspective view which shows the cross section of the belt used for the manufacturing method of the moving handrail of the passenger conveyor which concerns on Embodiment 1 of this invention. It is a perspective view which shows the edge part processing state before a connection when connecting the belt shown in FIG. 1 in endless form, (a) shows one end part side, (b) shows the other end part side. Side surface sectional drawing which shows notionally the processing state by the connection part processing apparatus concerning Embodiment 1 of this invention. The top view which shows the principal part of the connection part processing apparatus shown by FIG. The top view which shows notionally the principal part of the connection part processing apparatus of the moving handrail of the passenger conveyor which concerns on Embodiment 2 of this invention. The side view which shows the peeling member which is the principal part of the connection part processing apparatus of the moving handrail of the passenger conveyor which concerns on Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Belt (moving handrail), 2 Tensile body, 3 Thermoplastic elastomer, 31 Surface layer thermoplastic elastomer, 32 Inner layer thermoplastic elastomer, 4 Base material, 10 Connection part processing apparatus, 11, 12 Cutting tool, 13 Peeling member, 13a Cutting edge, 12b Vent hole.

Claims (11)

Is formed in cross-section C-shaped, and a single-layer or multi-layer thermoplastic elastomer strip tensile member therein is provided along the longitudinal direction, and the thermoplastic inside bonded substrates of the elastomer is integrally When connecting the end portions of the linear belts constituting the moving handrail of the passenger conveyor formed in the above, the thermoplastic elastomer at the end portions of the belt is perpendicular to the longitudinal direction of the belt by the cutting blade. A method for manufacturing a moving handrail for a passenger conveyor, comprising a step of incising from both sides of a direction and expanding the incised portion with a peeling member.   The pair of disk-shaped rotary blades disposed on both sides in a direction perpendicular to the longitudinal direction of the belt is used as the cutting blade. The moving handrail of the passenger conveyor according to claim 1, Production method.   The pair of disk-shaped rotary blades are separated from each other so that a contact portion between the thermoplastic elastomer and the tensile body remains with a width of about 5 mm or less in the cutting process. The manufacturing method of the moving handrail of the passenger conveyor of Claim 2.   The manufacturing method of the moving handrail of the passenger conveyor in any one of Claim 1 to 3 with which the blade edge | tip is provided in the front-end | tip part of the said peeling member.   2. The moving handrail of a passenger conveyor according to claim 1, wherein a pair of disk-shaped rotary blades arranged at different positions in the longitudinal direction on both sides of the belt are used as the cutting blade. Production method. The manufacturing method of the moving handrail of the passenger conveyor in any one of Claim 1-5 which spreads the said tensile body and the said thermoplastic elastomer so that it may jump up upwards by the said peeling member. Is formed in cross-section C-shaped, and a single-layer or multi-layer thermoplastic elastomer strip tensile member therein is provided along the longitudinal direction, and the thermoplastic inside bonded substrates of the elastomer is integrally An incision blade for incising the end of the linear belt constituting the moving handrail of the passenger conveyor formed in the shape from both sides in the direction perpendicular to the longitudinal direction of the belt, and a portion incised by the incision blade A connecting part processing apparatus for a moving handrail of a passenger conveyor, comprising a peeling member that spreads.   8. The moving handrail of a passenger conveyor according to claim 7, wherein the cutting blade includes a pair of disk-shaped rotary blades disposed on both sides in a direction orthogonal to the longitudinal direction of the belt. Connection processing equipment.   8. The moving handrail of a passenger conveyor according to claim 7, wherein the cutting blade is composed of a pair of disk-shaped rotary blades which are disposed on both sides of the belt while being shifted in the longitudinal direction. Connection processing equipment.   The connecting part processing of the moving handrail of the passenger conveyor according to any one of claims 7 to 9, wherein the peeling member is formed in a wedge-shaped cross section having an inclination angle of 5 ° to 45 °. apparatus.   The connecting part processing device for a moving handrail of a passenger conveyor according to any one of claims 7 to 10, wherein an air blow vent for discharging cutting powder is provided in the peeling member.

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