JP2561850Y2 - Heating equipment for handrails of passenger conveyors - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating device for a handrail of a passenger conveyor used for repairing the shape of a handrail such as an escalator.

[0002]

2. Description of the Related Art A conventional example of this type of handrail heating device will be described with reference to a sectional view of FIG. 3 and an overall perspective view of FIG.

[0003] The heating device shown in these figures has a heating section 2a.
Upper mold 2 which is pressed against handrail 1 from above with
A middle mold 3 which is divided into three parts and inserted into the inside of the handrail 1 and is fitted into the recess 2b of the upper mold 2 to be in close contact with the upper mold 2; Rail 1
A lower frame 4 formed integrally with the upper die 2; a lower frame 6 formed integrally with the lower die 4;
And a fastener 7 which is rotatably attached to both sides of the upper frame 5 and whose front end is detachable from the notches 5a on both sides of the upper frame 5. By inserting the tip of the fastener 7 into the notch 5a of the upper frame 5 and tightening the nut 7a, the upper frame 5 and the lower frame 6 can clamp the upper mold 2 and the lower mold 4 from above and below. As a result, the handrail 1 in this device is clamped by the upper mold 2, the middle mold 3 and the lower mold 4, and in this state, the heating units 2a and 4a generate heat to produce the molds 2 and 4.
By heating 3, 4 the shape of the handrail 1 can be repaired.

A reference known example of this type of apparatus is disclosed in Japanese Patent Application Laid-Open No. 63-147795.

[0005]

[Problem to be Solved by the Invention] By the way, in the case of passenger conveyors such as escalators, the shape of handrails has also changed with the progress of technology.
A heating device used for repairing a handrail requires various types of mold clamping dies. However, the above-described conventional heating device for a handrail uses a mold (upper mold 2 or lower mold 4).
And the frame (the upper frame 5 and the lower frame 6) are integrally formed, so that the weight of the mold with the frame is large and the handling is not easy. If many types of molds are prepared and used or stored as appropriate, the work efficiency must be reduced and the storage space is not secured.

[0006] The present invention has been made in view of such problems in the prior art, and has as its object to improve the working efficiency and reduce the waste of storage space even when preparing many types of molds for the passengers. An object of the present invention is to provide a heating device for a handrail of a conveyor.

[0007]

In order to achieve the above object, the present invention provides an upper die having a heating portion and pressed against a handrail from above, and a handrail fitted to the upper die. And a lower die having a heating unit and pressed against the handrail from below, an upper frame for pressing the upper die, and a lower frame for pressing the lower die. Heating for the handrail of a passenger conveyor capable of repairing the shape of the handrail by causing the heating unit to generate heat while clamping the upper and lower dies from above and below with the upper and lower frames. In the device, the upper frame and the upper mold are separated from each other, and the lower frame and the lower mold are separated from each other, and the upper frame and the lower frame can be opened and closed with a hinge. To be connected.

[0008]

In the handrail heating device constructed as described above, the upper frame and the lower frame are separate from the mold clamping mold. They can be used in common, and only the mold for mold clamping needs to be replaced according to the shape of the handrail. Therefore, the weight of these molds separated from the frame is reduced and it is easy to handle, storage space can be saved, and since the upper frame and the lower frame are connected by hinges, both frames are integrated It can be handled and only needs to be provided on one side of the device with fasteners used during clamping.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. Here, FIG. 1 is a sectional view of a heating device for a handrail according to an embodiment, and FIG. 2 is an overall perspective view of the heating device.

The heating device shown in FIGS. 1 and 2 has an upper die 8 having a heating portion 8a and pressed against the handrail 1 from above,
It has a heating die 9a which is inserted into the inside of the handrail 1 after being divided into three parts and has a heating part 9a, and a heating part 10a which is fitted into the recess 8b of the upper die 8 and is in close contact with the upper die 8. A lower die 10 pressed against the handrail 1 from below, an upper frame 11 for pressing the upper die 8, a lower frame 12 for pressing the lower die 10, and the upper frame 11 and the lower frame 12. And a fastener 14 for connecting the protruding piece 11a of the upper frame 11 to the protruding piece 12a of the lower frame 12 to keep both frames 11, 12 closed. Has been
The handrail 1 is placed between the upper frame 11 and the lower frame 12 in the open state.
After setting the upper die 8, the middle die 9 and the lower die 10 with the nip therebetween, the both frames 11 and 12 are closed and the nut 14 a of the fastener 14 is closed.
By tightening, the upper die 8 and the lower die 10 can be pressed from above and below. In addition, fastener 1
Since the retaining pin 14b is attached to 4, the fastener 14 is held by the projecting piece 11a of the upper frame 11 when the upper frame 11 and the lower frame 12 are opened, and there is no fear of falling off.
In this embodiment, the heating units 8a, 9a, and 10a are
Heating wires for heaters are embedded in the upper mold 8, the middle mold 9, and the lower mold 10, respectively.

Therefore, even if the upper mold 8 and the upper frame 11 are separate from each other, and the lower mold 10 and the lower frame 12 are separate from each other, the upper mold 8 is closed by closing the frames 11 and 12. And lower mold 1
0, the handrail 1 in this device is clamped by the upper die 8, the middle die 9, and the lower die 10,
In this state, the heating units 8a, 9a, and 10a generate heat to heat the molds 8, 9, and 10, so that the handrail 1
The shape can be repaired.

As described above, in the above embodiment, the upper die 8 and the upper frame 1
1 is a separate body, and the lower mold 10 and the lower frame 12 are separate bodies, so that the upper frame 11 and the lower frame 12 can be commonly used even when the shape of the handrail 1 is different. It is sufficient to replace only the molds 8, 9, and 10 for clamping according to the shape of the handrail 1. As a result, these molds 8, which are prepared in various types and used as appropriate,
The weight of the frames 9 and 10 is reduced to improve the handleability, and it is not necessary to prepare a plurality of types of frames 11 and 12, thereby saving storage space. Further, in the above embodiment, since the upper frame 11 and the lower frame 12 are connected by the hinge 13, the frames 11 and 12 can be handled as an integrated product, and the fastener 14 used at the time of clamping is used for the device. It is only necessary to provide it on one side, so that the number of parts can be reduced and workability can be improved.

[0013]

As described above, the handrail heating device according to the present invention uses the upper frame and the lower frame separately from the mold for mold clamping even when the shape of the handrail is different. Since only the mold for mold clamping needs to be replaced according to the shape of the handrail, the weight of these molds separated from the frame is reduced, and handling is improved, so that many types of molds can be used. Even if they are prepared and used as appropriate, the work efficiency is good and the storage space can be saved, which has the excellent effect of saving space.The upper and lower frames are connected by hinges, so both frames are integrated. In addition to the above, it is only necessary to provide a fastener used at the time of squeezing on only one side of the device, which has an excellent effect of reducing the number of parts and improving workability.

[Brief description of the drawings]

FIG. 1 is a sectional view of a heating device for a handrail according to an embodiment.

FIG. 2 is an overall perspective view of the heating device shown in FIG.

FIG. 3 is a cross-sectional view showing a conventional heating device for a handrail.

4 is an overall perspective view of the heating device shown in FIG.

[Explanation of symbols]

 Reference Signs List 8 upper die 8a heating unit 9 middle die 9a heating unit 10 lower die 10a heating unit 11 upper frame 12 lower frame 13 hinge 14 fastener

Claims (1)

(57) [Scope of request for utility model registration] 1. An upper mold having a heating section and pressed against the handrail from above, a middle mold fitted to the upper mold and inserted inside the handrail, and a lower mold having a heating section. A lower die pressed against the handrail from the side, an upper frame for pressing the upper die, and a lower frame for pressing the lower die, and the upper frame and the lower frame are used in the vertical direction. In a heating device for a handrail of a passenger conveyor capable of repairing the shape of the handrail by causing the heating portion to generate heat while clamping the upper mold and the lower mold, the upper frame and the upper mold can be separated from each other. A heating device for a handrail of a passenger conveyor, wherein the lower frame and the lower mold are separated from each other, and the upper frame and the lower frame are hingedly connected to each other. .