JPH01110492A - Escalator - Google Patents

Abstract

PURPOSE: To securely expand a tread while eliminating the generation of contact failure and short-circuit accident by forming one of plural steps connected in the endless condition into a specified step for expanding a tread, and providing a cover member for covering over a power feeding part of the specific step. CONSTITUTION: In the case of conveying a wheelchair at the time of ordinary operation of an escalator, a specific step 7 is stopped at a landing position. At this stage, a contact 20 of a power receiving system 19 of the specific step contacts with a trolley wire 23 of a power feeding system 22, and the power is fed to a driving machine 9, and a tread 7A is moved so as to expand the tread for wheelchair. After concluding the getting-on of the wheelchair while utilizing the moved tread 7A, the wheelchair is conveyed. At this stage, since an upper part of the power receiving system 19 and the power feeding system 22 are covered with an inner deck cover 15 and an outer deck cover 16, even in a case where the rainwater and the dust intrudes through a clearance Q between a step side part and a skirt guard 17, the contact 20 and the trolley wire 20 are protected from the rainwater and the dust, and adhesion and deposition are eliminated so as to prevent the generation of contact failure and short-circuit accident.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an escalator, and more particularly to an escalator equipped with specific steps capable of transporting a wheelchair.

[Conventional technology]

In order to improve services not only for general pedestrians but also for wheelchair users, at least one of the plurality of steps is designated as a specific step, and the tread surface of this specific step is expanded so that a wheelchair can be placed on it. In order to expand the tread surface, a tread expansion mechanism and its driving machine are provided at a specific step, and power is supplied to the driving machine of this specific step from the fixed side. As described in Japanese Patent Laid-Open No. 62-4187, power is supplied to this driving machine by installing a power feeding section (contact, trolley wire) on a fixed member under a specific step, and receiving power at the opposite specific step. We have set up a department.

[Problem that the invention seeks to solve]

In the above-mentioned conventional technology, since the power feeding part is provided upward under a specific step, if the escalator is installed outside R or in a humid subway station, intrusion may occur through gaps around the step. The problem is that rainwater and dust easily accumulate on the power supply part, causing poor contact with the power receiving part and short-circuiting of the power supply part, leading to malfunction of the tread extension.
Improving reliability was a major challenge.

An object of the present invention is to provide an escalator that can improve reliability by ensuring expansion of the tread surface of a specific step.

[Means for solving problems]

In order to achieve the above object, the present invention provides a cover member that covers at least the upper part of the conductive cloth of the power supply device to isolate it from the intrusion route of rainwater and dust.

This was done to eliminate poor connections and short circuit accidents.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

The structure of the escalator is to support the parapet 2 on both sides along the longitudinal direction of the main frame 1, and to wrap a chain 5 endlessly between sprockets 3 and 4 disposed at the top and bottom of the main frame.
A plurality of steps 6 are connected to this chain 5. These plurality of steps 6 are driven by a tread expansion mechanism 8 provided on the back side of the specific step 7 and its driving machine 9 to move upward or horizontally, or to move upward and then horizontally, and the specific step 7 alone or By using the specific step 7 in conjunction with the adjacent normal step 6, the tread surface is expanded to ensure a seating surface for the wheelchair. In addition, as the tread expansion mechanism, Japanese Patent Application Laid-Open No. 60-218285, Japanese Patent Application Laid-Open No. 61-178391, and Japanese Patent Application Laid-Open No. 62-41
What is described in Publication No. 87 is applicable. These step 6 and specific step 7 are the previous llI! IOA and rear wheel 1
0B, and a guide rail IIA fixed to the main frame 1 by these front axle 10A and rear wheel 10B in the same manner as before,
I am trying to run on IIB.

On the other hand, the above-mentioned (fighter 2) has a handrail panel 13 made of a glass panel or the like supported by the main frame 1 via banking 14 and having a guide frame (not shown) fixedly attached to the upper end for slidingly guiding the handrail 12. An inner deck cover 15 and an outer deck cover 16 are arranged around the parapet panel 13 to cover structures below this backing 14.
, a skirt guard 17 that partitions between the inner deck cover 15 and the step 6.7, and an exterior plate 18 provided continuously at the outer end of the outer deck cover 16.

By the way, it is necessary to supply power in order to drive the driver 9 in step 7. For this purpose, a bracket B is extended from the end in the rlJ direction of the specific step 7 beyond the skirt guard 17 and below the inner deck cover 15, and a power receiving device 19 is attached to the tip. This power receiving device 19
A plurality of insulated contacts 20 are provided horizontally, and Ii? It is connected to the J drive machine 9 by a power supply line (not shown).

A support 21 is attached to the main frame 1 at a position facing the contact 20.
A power supply device 22 is fixedly installed via the power supply device 22 .

This power supply device 22 has the same number of trolley wires 23 as the contacts 20, an insulator 24 that supports the trolley wires 23 vertically at intervals, and an opening surrounding these on the contactor 20 side. The trolley duct 25 has a U-shaped cross section and is disposed laterally, and the trolley wire 23 is connected to a power source (not shown). The trolley wire 23 need not be disposed for one boarding/disembarking period as long as it has a length Q that can absorb variations in the stop position when the specific step 7 is stopped at the boarding/disembarking position. In addition, the first insulator 247 has a spacer wall 24W protruding between the vertically adjacent trolley wires to ensure a creeping distance.

In the escalator configured as described above, the specific step 7 is placed near the entrances 26A and 26B on both sides.
call switch S1 that calls the boarding position, and specifying step 7
A detection switch Sx that detects.

S3 is provided.

The normal operation of the escalator having the above structure is the same as that of a general escalator, and the specific step 7 rotates together with the plurality of steps 6 to transport passengers. During such normal operation, if you want to transport a wheelchair from the lower floor to the upper floor, by operating the call switch S1, the control circuit changes from normal operation to special 'M' rotation, and in the specific step 7, the detection switch S2 is turned on. As a result, it comes to the descending boarding position and stops. At this time, the contact 2o of the power receiving device 19 in the specific step 7 contacts the trolley wire 23 of the power receiving device 22, power is supplied to the drive machine 9, and the tread 7A is moved to ensure a tread on which the wheelchair can ride. .

After the user finishes boarding the wheelchair using the moved tread 7A, a start button (not shown) is pressed to transport the wheelchair to the upper entrance/exit 2613. At that time, the specific step 7 is detected by the detection switch S3 and stopped at a predetermined position. At this time, the power receiving device 19 contacts the power feeding device 22 in the same way as the stopping of the specific step 7 at the lower entrance/exit 26A, so the driving device 9 is operated to return the tread surface 7A to its original state.

Incidentally, if the power feeding device carator between the power feeding devices 22 and 22 located above and below is switched to normal operation, operation can be performed as before.

According to the above embodiment, since the power receiving device and the power feeding device are arranged in a position where the upper portions are covered by the inner deck cover 15 and the outer deck cover 16, it is assumed that the power receiving device and the power feeding device pass through the gap G between the step side part and the skirt guard 17. Even if rainwater or dust enters, these rainwater and dust will be removed from the contactor 20 or the trolley wire 2.
Since it falls downward before reaching 3, there is almost no adhesion and accumulation of rainwater and dust, and there are no contact failures or short-circuit accidents due to adhesion and accumulation.

In addition, since each contact 20 and each trolley wire 23 are arranged sideways to face each other, and each contact and each trolley wire are arranged above and below each other, rainwater and dust can
Even if it reaches , it will not stay there and will fall,
As mentioned above, there is less adhesion and accumulation of rainwater and dust, which naturally reduces contact failures and short-circuit accidents.

Furthermore, since the power supply position 22 is almost covered by the trolley duct 25 having a sideways opening, rainwater and dust are unlikely to accumulate on the trolley wires 1 to 23.

By the way, in the above embodiment, ■ the power feeding device 22 and the power receiving device 1
9 is provided in a position covered by the inner deck cover 15,
■ By arranging the power supply device 22 and the power receiving device 19 sideways to face each other, and by providing the power supply device 22 with a trolley duct 25 that opens sideways, it is possible to minimize the adhesion and accumulation of rainwater and dust. However, it is not necessarily necessary to configure the above-mentioned items (1) to (2) at the same time, and depending on the installation location of the escalator, each may be configured independently, or a combination of two may be configured. That is, the above ■.

(2) has the configuration as shown in FIG. 1, but the configuration (2) above is not limited to the configuration shown in FIG. 1, and as shown in FIG. May be applied. In addition, it may be done as shown in FIG.

In the embodiment shown in FIG. 1, a contact 20 of a power receiving device 19 and a trolley wire 23 of a power feeding device 22 are fixed to a specific step 7 and a main frame 1 via a bracket B and a support 21, respectively. Therefore, the power receiving device 1 from the specific step 7
If the protruding dimension of 9 is increased and the skirt guard is positioned closer to the exterior plate 18 than the gap G between 7 and the specific step 7, so that rainwater and dust are less likely to adhere to it, the rotation range of the specific step 7 will be increased. It is necessary to ensure a rotation range for the protruding power receiving device I9, which goes against the idea of saving space. Therefore, as shown in FIG.
A power receiving device 19 having a one-way deck cover 1 is provided.
5 and the lower part of the parapet panel 13 covered by the outer deck cover 16, a power supply device 22 is provided, and the power supply device 2.
2 is configured to include a telescoping mechanism 29 and an insulating support 28 that supports the power supply section 30 at its tip, and when power is supplied, the telescoping mechanism 2
9 is extended toward the specific step 7 to press the power supply section 30 against the contact 27 of the power receiving device 19, and the power supply section 30 is separated from the contact 27 when power is not supplied.

With the above configuration, the power receiving device 19 of the specific step 7 does not protrude from the rotation range of this specific step, and the power receiving device 22 is also located away from the specific step 7, so it is protected from intruding rainwater and dust. Can be isolated. Furthermore, in the power supply device 22 having the trolley wires 23 arranged laterally as shown in FIG. The creepage distance between the two can be increased. [Effects of the Invention] As explained above, according to the present invention, it is possible to make it possible to provide power to the power supply section for a specific step by moving the tread surface.

4. Brief explanation of the drawings - Fig. 1 is a longitudinal sectional front view showing one embodiment of the main part of the escalator according to the present invention, Fig. 2 is a side view showing the main frame in Fig. 1, and Fig. 3 is a main frame of the escalator according to the present invention. FIG. 4 is a side view schematically showing an escalator according to the invention, FIG. 4 is a longitudinal sectional front view of main parts showing another embodiment of the invention, FIG. 5 is a front view showing an example of a power supply device according to the invention, and FIG. 7 is a longitudinal sectional front view of a main part showing still another embodiment according to the present invention, and FIG. 7 is a longitudinal sectional front view showing another embodiment according to the present invention corresponding to FIG.

1... Main frame, 2... Balustrade, 6... Step, 7...
・・Specific step, 15・・Inner deck cover, 16・
... Outer deck cover, 17 ... Skirt guard, 19
...Power receiving device.

20...Contactor, 22...Power supply device, 23...Trolley No. 1 Figure 7

Claims (1)

[Scope of Claims] 1. A specific step is provided in at least one of the plurality of steps connected in an endless manner, and a tread expansion mechanism and its driver are provided for expanding the tread surface at this specific step, and the said drive mechanism is provided when using a wheelchair. In the escalator that operates after power is supplied to the drive machine and the tread is expanded, a power supply device for supplying power to the drive machine is attached to a fixed member, and a cover member is provided to cover the top of the power supply device. An escalator characterized in that the specific step is provided with a power receiving device that comes into contact with the power supply device when the specific step stops at a stop position. 2. The escalator according to claim 1, wherein the cover member is a deck cover. 3. The escalator according to claim 1, wherein the cover member is a duct member of the power supply device. 4. The escalator according to claim 1, wherein the power feeding device and the power receiving device are disposed facing each other in the width direction of the step. 5. The escalator according to claim 4, wherein the power supply device includes a plurality of trolley wires arranged discontinuously on the same plane line.