WO2019220634A1

WO2019220634A1 - Comb plate movement detection device for passenger conveyor

Info

Publication number: WO2019220634A1
Application number: PCT/JP2018/019351
Authority: WO
Inventors: 尚希大澤
Original assignee: 三菱電機株式会社
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2019-11-21
Also published as: JP6896169B2; CN112119031A; CN112119031B; JPWO2019220634A1

Abstract

A comb plate movement detection device for a passenger conveyor comprises an operation piece, a detection lever, and a detector. The operation piece is fixed to a comb plate. The detection lever is rotatable relative to a plate support member that supports the comb plate. Furthermore, the detection lever is in contact with the operation piece. The detection lever is also rotated by horizontal movement and upward movement of the operation piece. The rotation of the detection lever is detected by the detector.

Description

Complate movement detection device for passenger conveyor

The present invention relates to a comb plate movement detection device for a passenger conveyor that detects the movement and lifting of the comb plate in the horizontal direction.

In the conventional passenger conveyor safety device, a detection arm is disposed under the floor of the exit. The detection arm is rotatable around a horizontal pin. When the user's foot is about to be sandwiched between the upper end of the detection arm and the conveyor belt, the detection arm rotates and the limit switch is operated (see, for example, Patent Document 1).

Also, in other conventional passenger conveyor safety devices, a detection lever is provided at the end of the comb plate in the width direction. A detection switch is provided above the detection lever. When the comb plate is lifted, the detection switch is operated by the detection lever (see, for example, Patent Document 2).

In another conventional passenger conveyor safety device, the movement of the comb plate toward the landing plate is detected by the first limit switch. Further, the lift of the comb plate is detected by the second limit switch (see, for example, Patent Document 3).

Japanese Utility Model Publication No.4-111785 Japanese Patent Laid-Open No. 11-171457 JP-A-8-324949

In the conventional safety device disclosed in Patent Document 1, it is necessary to install a large detection arm under the floor of the exit to detect the intrusion of the foot between the upper end of the detection arm and the conveyor belt. . Further, only the lifting of the upper end of the detection arm could be detected.

Moreover, even the conventional safety device disclosed in Patent Document 2 can only detect the lift of the comb plate.

In addition, since the conventional safety device disclosed in Patent Document 3 uses two limit switches, the cost increases and two installation spaces are required.

The present invention has been made to solve the above-described problems. A complate movement detection device for a passenger conveyor that can detect movement and lifting of a comb plate in the horizontal direction with a simple configuration. The purpose is to obtain.

The comb plate movement detection device for a passenger conveyor according to the present invention can be rotated with respect to a working piece fixed to the comb plate, a plate support member supporting the comb plate, and in contact with the working piece. And a detection lever that rotates when the operating piece moves in the horizontal direction and moves upward, and a detector that detects the rotation of the detection lever.

In the passenger conveyor comb plate movement detection device of the present invention, the detection lever is rotated by the movement of the working piece in the horizontal direction and the upward movement, and the rotation of the detection lever is detected by the detector. For this reason, it is possible to detect the horizontal movement and lifting of the comb plate with a simple configuration.

It is a schematic block diagram which shows the escalator by Embodiment 1 of this invention. It is a side view which expands and shows the II section of FIG. It is a side view which shows the comb plate movement detection apparatus of Embodiment 1. It is a side view which expands and shows the principal part of FIG. It is a side view which shows the comb plate movement detection apparatus by Embodiment 2 of this invention. It is a side view which shows the principal part of the modification of the comb plate movement detection apparatus of Embodiment 1. It is a side view which shows the principal part of the modification of the comb plate movement detection apparatus of Embodiment 2.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a schematic configuration diagram showing an escalator according to Embodiment 1 of the present invention. In FIG. 1, the truss 1 is constructed between the architectural beams on the upper and lower floors. The truss 1 supports the escalator's own weight and passenger load. A plurality of steps 2 are supported on the truss 1. Step 2 is connected endlessly. A pair of balustrades 3 are erected on the truss 1 on both sides in the width direction of step 2.

FIG. 2 is an enlarged side view showing a portion II in FIG. A landing plate 4 and a comb plate 5 are provided on the floor of the entrance / exit of the escalator. The landing plate 4 constitutes a part of the floor board.

The comb plate 5 is disposed on the intermediate side in the longitudinal direction of the truss 1 with respect to the landing plate 4. A plurality of combs 6 are fixed to the comb plate 5. The combs 6 are arranged side by side in the width direction of Step 2. Each comb 6 has a plurality of comb teeth. Each comb tooth meshes with the top surface cleat of step 2.

FIG. 3 is a side view showing the comb plate movement detection apparatus of the first embodiment. A plate support member 7 is provided on the floor of the entrance / exit. The plate support member 7 has a flat horizontal portion 7a and a flat vertical portion 7b. The vertical part 7b protrudes vertically from the horizontal part 7a.

The comb plate 5 is supported on the horizontal portion 7a. A guide member 8 is interposed between the horizontal portion 7 a and the comb plate 5. The comb plate 5 is guided by the guide member 8 and can move horizontally to the landing plate 4 side.

A first compression spring 9 is provided between the vertical portion 7 b and the comb plate 5. The first compression spring 9 is compressed as the comb plate 5 moves horizontally to the landing plate 4 side. That is, the force required for the horizontal movement of the comb plate 5 is adjusted by the first compression spring 9.

A second compression spring 10 is provided on the comb plate 5. The second compression spring 10 is compressed by lifting the comb plate 5 upward. That is, the force required for the comb plate 5 to lift is adjusted by the second compression spring 10.

An L-shaped support piece 11 is fixed to the end of the comb plate 5 on the comb 6 side. A round bar-shaped working piece 12 is fixed to the support piece 11. That is, the operating piece 12 is fixed to the comb plate 5 via the support piece 11. Thereby, the operation piece 12 moves integrally with the comb plate 5.

A rotating shaft 13 is provided in the vertical portion 7b. The rotation shaft 13 is provided with a detection lever 14. The detection lever 14 is rotatable with respect to the plate support member 7 about the rotation shaft 13.

The detection lever 14 has the inclined surface 14a and the operation part 14b. The inclined surface 14a is inclined with respect to the horizontal direction so as to become lower toward the landing plate 4 side. The inclined surface 14 a is in contact with the operating piece 12. The detection lever 14 is placed on the operating piece 12.

The operation unit 14b is disposed upward at the end of the detection lever 14 opposite to the rotation shaft 13. A detection switch 15 as a detector is disposed above the operation unit 14b. The detection switch 15 faces the operation unit 14b through a gap. A limit switch is used as the detection switch 15.

The detection lever 14 is rotated by moving the operating piece 12 in the horizontal direction and moving upward. The detection switch 15 is mechanically operated by the rotation of the detection lever 14 in the clockwise direction in FIG. Thereby, the detection switch 15 detects the rotation of the detection lever 14.

The guide member 8, the first compression spring 9, the second compression spring 10, the support piece 11, the operation piece 12, the rotating shaft 13, the detection lever 14, and the detection switch 15 are at one end in the width direction of the comb plate 5. It is arranged inside the balustrade 3. A similar configuration is also arranged at the other end of the comb plate 5 in the width direction.

FIG. 4 is an enlarged side view showing the main part of FIG. In the first embodiment, the rotation shaft 13 is disposed at the end of the detection lever 14 opposite to the operation portion 14b. The operating piece 12 and the detection switch 15 are arranged on the same side with respect to the rotating shaft 13.

The horizontal distance L2 from the rotating shaft 13 to the contact portion of the detection lever 14 with the detection switch 15 is larger than the horizontal distance L1 from the rotating shaft 13 to the contact portion of the detection lever 14 with the operating piece 12.

Thereby, the detection lever 14 expands the movement of the operating piece 12 and transmits it to the detection switch 15. For example, when L1: L2 is set to 1: 4, the detection switch 15 can be pushed in by about 4 mm only by lifting the operating piece 12 by 1 mm.

Next, the operation will be described. When step 2 is moving in the direction of the arrow in FIG. 3, an object may be sandwiched between the comb 6 and step 2, and the comb plate 5 may move horizontally to the landing plate 4 side. In this case, since the operating piece 12 also moves in the horizontal direction, the detection lever 14 is pushed up by the operating piece 12 and rotates clockwise in FIG. As a result, the detection switch 15 is operated, and the movement in step 2 is stopped.

Also, the step 2 may be lifted and collide with the comb plate 5, and the comb plate 5 may be lifted vertically upward. In this case, since the operating piece 12 also moves vertically upward, the detection lever 14 is pushed up by the operating piece 12 and rotates clockwise in FIG. As a result, the detection switch 15 is operated, and the movement in step 2 is stopped.

In such a comb plate movement detection device, the detection lever 14 is rotated by the movement of the working piece 12 in the horizontal direction and the upward movement, and the detection switch 15 is operated by the rotation of the detection lever 14. For this reason, it is possible to detect the horizontal movement and lifting of the comb plate 5 with a simple configuration.

Further, even when the entire comb plate 5 is lifted, the detection lever 14 rotates and the detection switch 15 can be operated.

Further, the operating piece 12 is in contact with the inclined surface 14 a of the detection lever 14. For this reason, the movement of the comb plate 5 in the horizontal direction can be converted into the rotation of the detection lever 14 with a simple configuration.

Further, since the detection lever 14 enlarges the movement of the operating piece 12 and transmits it to the detection switch 15, it is possible to more reliably detect the horizontal movement and lifting of the comb plate 5.

In the past, since the magnifying mechanism was fixed to the comb plate, a long magnifying mechanism was required to operate the limit switch with a small displacement of the comb plate. However, in the present embodiment, by using the rotatable detection lever 14 separately from the comb plate 5, the detection switch 15 can be operated with a smaller displacement while suppressing the installation space.

Further, by changing the horizontal distances L1 and L2 in FIG. 4, the displacement amount of the comb plate 5 necessary for operating the detection switch 15 can be easily adjusted.

Embodiment 2. FIG.
Next, FIG. 5 is a side view showing a comb plate movement detection apparatus according to Embodiment 2 of the present invention. In the second embodiment, the rotation shaft 13 is disposed at the intermediate portion of the detection lever 14. The operating piece 12 is disposed on one side of the rotating shaft 13. The detection switch 15 is disposed on the other side of the rotating shaft 13.

The operation unit 14b is disposed downward at the end of the detection lever 14 opposite to the operating piece 12. The detection lever 14 is placed on the operating piece 12 on one side of the rotating shaft 13. The detection switch 15 is disposed below the detection lever 14 on the other side of the rotating shaft 13.

When the comb plate 5 moves horizontally to the landing plate 4 side, the detection lever 14 is pushed up by the operating piece 12 and rotates counterclockwise in FIG. Thereby, the operation part 14b moves downward, the detection switch 15 is operated, and the movement of step 2 stops.

Further, when the comb plate 5 is lifted vertically upward, the detection lever 14 is pushed up by the operating piece 12 and rotates counterclockwise in FIG. As a result, the detection switch 15 is operated, and the movement in step 2 is stopped. Other configurations and operations are the same as those in the first embodiment.

Even with such a configuration, the same effect as in the first embodiment can be obtained. Moreover, since both the operation piece 12 and the detection switch 15 are arrange | positioned under the detection lever 14, the space of the up-down direction required for installation of an apparatus can be reduced.

FIG. 6 is a side view showing the main part of a modification of the comb plate movement detection device of the first embodiment. In this modification, an operating piece 16 having an inclined surface 16a is used. The inclined surface 16a is inclined with respect to the horizontal direction so as to become lower toward the landing plate 4 side.

The detection lever 14 has a pin 14c in contact with the inclined surface 16a. The pin 14 c and the operation unit 14 b are disposed on the same side with respect to the rotation shaft 13.

When the operating piece 16 moves horizontally to the landing plate 4 side, the pin 14c is pushed up by the operating piece 16, and the detection lever 14 rotates clockwise in FIG. Thereby, the operation part 14b moves upward and the detection switch 15 is operated. Other configurations and operations are the same as those in the first embodiment.

FIG. 7 is a side view showing a main part of a modification of the comb plate movement detection device of the second embodiment. In this modified example, an operating piece 16 similar to that shown in FIG. 6 is used. Further, the pin 14 c is disposed on the opposite side of the operation unit 14 b with respect to the rotation shaft 13. Other configurations and operations are the same as those in the second embodiment.

As shown in FIGS. 6 and 7, even if the inclined surface 16a is provided on the operating piece 16 side and the pin 14c is provided on the detection lever 14 side, the same effect as in the first and second embodiments can be obtained.

Further, the

inclined surfaces

14a and 16a may be curved surfaces.

Further, the detection switch 15 is not limited to the limit switch, and may be another mechanical switch. The detector is not limited to a switch, and may be a sensor that detects the rotation of the detection lever 14 in a non-contact manner using magnetism, light, or the like.

Further, the comb plate movement detection device may be installed only at one end of the comb plate 5 in the width direction.

In the above example, the escalator is shown as the passenger conveyor, but the present invention can also be applied to a moving sidewalk.

5 comb plate, 7 plate support member, 12, 16 working piece, 14 detection lever, 14a, 16a inclined surface, 15 detection switch.

Claims

Working piece fixed against the comb plate,
A detection lever that is rotatable relative to a plate support member that supports the comb plate and that is in contact with the operating piece, and that rotates by moving the operating piece in a horizontal direction and moving upward; and A compass plate movement detection device for a passenger conveyor equipped with a detector for detecting rotation of a detection lever.
Either one of the detection lever and the operation piece has an inclined surface that is in contact with the other of the detection lever and the operation piece,
The compass movement detection device for a passenger conveyor according to claim 1, wherein the inclined surface is inclined with respect to a horizontal direction.
The detector is a detection switch operated by the detection lever;
The said detection lever is a comb plate movement detection apparatus of the passenger conveyor of Claim 1 or Claim 2 which expands and transfers the movement of the said operation piece to the said detection switch.
The detection lever is placed on the operating piece on one side of the rotation shaft of the detection lever,
The said detector is a comb plate movement detection apparatus of the passenger conveyor of any one of Claim 1- Claim 3 arrange | positioned under the said detection lever at the other side of the said rotating shaft.