JP7409546B1 - Passenger conveyor and safety equipment - Google Patents

Abstract

The present invention provides a passenger conveyor that can prevent equipment such as a detector from being damaged after displacement of a comb plate is detected by a detector. A receiving member 21 is supported by a truss 1 so as to be movable in a direction A with respect to the truss 1. The comb plate 10 is supported by the receiving member 21 so that it can be displaced in the A direction with respect to the receiving member 21. When the comb 10c receives a force in the A direction, the delay device 24 causes the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 after the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23. The displacement of the comb plate 10 is delayed from the displacement of the receiving member 21 so that the displacement of the comb plate 10 starts or continues. [Selection diagram] Figure 4

Description

The present disclosure relates to passenger conveyors and safety devices used with passenger conveyors.

Patent Document 1 describes a passenger conveyor. In the passenger conveyor described in Patent Document 1, a comb plate is provided at the entrance/exit. The comb board is guided by the guide member and moves horizontally. When the comb plate moves a certain distance in the horizontal direction, the detection switch is turned on. When the detection switch is turned on, the step stops.

International Publication No. 2019/220634

In the passenger conveyor described in Patent Document 1, the steps stop when the detection switch is turned on. However, it takes a certain amount of time for the step to completely stop after the detection switch is turned on. If the comb board moves further in the horizontal direction during this time, an excessive load is applied to equipment such as a detection switch, which may cause damage to the equipment.

The present disclosure has been made to solve the problems described above. An object of the present disclosure is to provide a passenger conveyor that can prevent equipment such as a detector from being damaged after the displacement of the comb plate is detected by the detector. Another object of the present disclosure is to provide a safety device for use in such passenger conveyors.

The passenger conveyor according to the present disclosure includes a floor plate, a step that moves in a first direction and enters under the floor plate, a truss that supports the moving step, and a truss that is movable in the first direction with respect to the truss. a receiving member supported by the truss; a comb board having a comb facing the tread surface of the step and supported by the receiving member so as to be displaceable in a first direction relative to the receiving member; a detector that detects when the distance by which the receiving member is displaced in the first direction with respect to the truss reaches the first distance; and a regulating device for regulating the displacement of the comb plate relative to the receiving member in the first direction after the displacement of the receiving member relative to the truss in the first direction is regulated by the regulating device when the comb receives a force in the first direction. and a delay device for delaying the displacement of the comb plate relative to the displacement of the receiving member so that the displacement begins or continues.

The passenger conveyor according to the present disclosure includes a floor plate, a step that moves in a first direction and enters under the floor plate, a truss that supports the moving step, and a truss that is movable in the first direction with respect to the truss. a receiving member supported by the receiving member; a comb board having a comb facing the tread surface of the step and supported by the receiving member so as to be displaceable in a first direction relative to the receiving member; a detector that detects when the distance by which the comb plate is displaced in the first direction relative to the receiving member reaches the first distance; a regulating device that regulates the distance between two distances; and a regulating device that regulates the displacement of the comb plate relative to the receiving member in the first direction when the comb receives a force in the first direction, and then the receiving member in the first direction relative to the truss after the displacement of the comb plate relative to the receiving member in the first direction is regulated by the regulating device. and a delay device for delaying the displacement of the receiving member relative to the displacement of the comb plate so that the displacement of the receiving member begins or continues.

A safety device according to the present disclosure is a safety device used in a passenger conveyor that includes a floor plate, a step that moves in a first direction and enters under the floor plate, and a truss that supports the moving step. The safety device has a receiving member supported by the truss so as to be displaceable in a first direction with respect to the truss, and a comb that faces the tread surface of the step, and the comb is displaceable in the first direction with respect to the receiving member. a detector that detects when the distance that the receiving member is displaced in the first direction relative to the truss reaches a first distance; a regulating device for regulating the distance by which the comb can be displaced in the first direction to a second distance that is longer than the first distance; A delay device is provided to delay the displacement of the comb plate relative to the displacement of the receiving member so that the displacement of the comb plate in the first direction relative to the receiving member starts or continues after the displacement is regulated by the regulating device.

A safety device according to the present disclosure is a safety device used in a passenger conveyor that includes a floor plate, a step that moves in a first direction and enters under the floor plate, and a truss that supports the moving step. The safety device has a receiving member supported by the truss so as to be displaceable in a first direction with respect to the truss, and a comb that faces the tread surface of the step, and the comb is displaceable in the first direction with respect to the receiving member. a comb board supported by the receiving member such that the comb board can move in the first direction relative to the receiving member; a regulating device that regulates a distance that the comb can be displaced in the first direction to a second distance that is longer than the first distance; and a delay device that delays the displacement of the receiving member relative to the displacement of the comb plate so that the displacement of the receiving member relative to the truss in the first direction starts or continues after the displacement in the direction is regulated by the regulating device.

According to the present disclosure, it is possible to prevent equipment such as a detector from being damaged in a passenger conveyor after displacement of a comb board is detected by a detector.

It is a figure showing an example of a passenger conveyor in Embodiment 1. It is a view of the exit seen from above. FIG. 3 is a diagram schematically showing an example of a safety device. FIG. 3 is a diagram schematically showing an example of a safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. It is a figure which shows typically another example of a safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. It is a figure which shows typically another example of a safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. It is a figure which shows typically another example of a safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device. FIG. 3 is a diagram for explaining an example of the operation of the safety device.

A detailed explanation will be given below with reference to the drawings. Duplicate explanations will be simplified or omitted as appropriate. In each figure, the same reference numerals indicate the same or corresponding parts.

Embodiment 1.
FIG. 1 is a diagram showing an example of a passenger conveyor in the first embodiment. FIG. 1 shows an escalator as an example of a passenger conveyor. Other examples of passenger conveyors, such as moving walkways, will not be described in detail.

The passenger conveyor shown in FIG. 1 includes a truss 1 and a step 2. The passenger conveyor shown in FIG. The truss 1 is a structure that spans the upper and lower floors of a building, and is fixed to the building. Equipment provided on the passenger conveyor is supported on the truss 1. For example, the moving step 2 is also supported by the truss 1. Passengers ride on step 2 and move from boarding gate 3 to getting off gate 4. Figure 1 shows an up escalator. FIG. 2 is a diagram of the exit 4 seen from above.

The passenger conveyor shown in FIG. 1 may be a downward escalator. In such a case, the upper entrance indicated by numeral 4 is the entrance, and the lower entrance indicated by numeral 3 is the exit.

A machine room 5 is provided below the entrance 3. The machine room 5 is a space formed inside the truss 1. The machine room 5 is closed off by a floor plate 6. Further, a comb plate 7 is provided at the entrance 3. The comb board 7 is arranged on the exit 4 side of the floor board 6 so as to be adjacent to the floor board 6. The floorboard 6 and the comb board 7 form the floor of the entrance 3.

A machine room 8 is provided below the exit 4. The machine room 8 is a space formed inside the truss 1. The machine room 8 is closed off by a floor plate 9. Further, a comb plate 10 is provided at the exit 4. The comb board 10 is arranged on the entrance 3 side of the floor board 9 so as to be adjacent to the floor board 9. The floorboard 9 and the comb board 10 form the floor of the exit 4.

A motor 11 and a control device 12 are provided in the machine room 8 . The electric motor 11 drives step 2. Control device 12 controls electric motor 11 . As an example, the electric motor 11 rotates a shaft 14 provided in the machine room 8 via a reduction gear 13. A sprocket 15 is provided on the shaft 14. A step chain 16 is wound around the sprocket 15. A large number of step shafts 17 are provided in the step chain 16. A step 2 is fixed to each step shaft 17. As a result, a large number of steps 2 are connected to the step chain 16.

The step 2 moves by being pulled by the step chain 16. In the example shown in FIG. 1, the step 2 appears from below the floorboard 6 and the comb board 7 at the entrance 3 and moves toward the exit 4. Skirt guards 18 are provided on both sides of the step 2 moving from the entrance 3 to the exit 4. The step 2 appearing from below the comb plate 7 moves between the skirt guards 18 and along the skirt guards 18.

Arrow A shown in FIG. 2 indicates the direction in which the step 2 moves at the exit 4. In the following, the direction in which the step 2 moves at the exit 4 will also be referred to as the A direction. Step 2 moves in the direction A at the exit 4 and enters under the comb board 10 and floor board 9. Step 2 is reversed in the machine room 8. Step 2 is to move inside the truss 1 toward the machine room 5 in an inverted state. The step 2 returns to its normal position by further inversion in the machine room 5, and reappears from under the floor plate 6 and the comb plate 7.

Next, safety devices used in passenger conveyors will be explained. The safety device is provided at the entrance 3 and exit 4, respectively. 3 and 4 are diagrams schematically showing examples of safety devices. FIG. 3 corresponds to a view of the exit 4 seen from above. Further, in FIG. 3, illustrations of the skirt guard 18 and the like are omitted. FIG. 4 is a diagram showing a cross section taken along line BB in FIG. In the following, the safety device provided at the exit 4 will be explained in detail. A detailed explanation of the safety device provided at the entrance 3 will be omitted.

The comb plate 10 is part of the safety device. In addition to the comb plate 10, the safety device includes a receiving member 21, a detector 22, a regulating device 23, and a delay device 24.

In the example shown in FIGS. 3 and 4, part of the truss 1 is placed on both sides of the moving step 2. For example, in step 2, the space formed between the support member 1a and the support member 1b of the truss 1 is moved. Each of the support member 1a and the support member 1b is a long member arranged along the A direction.

The receiving member 21 is supported by the truss 1 so that it can be displaced in the A direction with respect to the truss 1. In the example shown in this embodiment, the receiving member 21 includes a receiving member 21-1 and a receiving member 21-2.

The receiving member 21-1 is supported by the supporting member 1a. The receiving member 21-1 is movable in the A direction with respect to the supporting member 1a. For example, the receiving member 21-1 is placed on the upper surface of the supporting member 1a. The upper surface of the support member 1a is horizontal. The receiving member 21-1 is slidable along the upper surface of the supporting member 1a. The receiving member 21-2 is supported by the supporting member 1b. The receiving member 21-2 is movable in the A direction with respect to the supporting member 1b. For example, the receiving member 21-2 is placed on the upper surface of the supporting member 1b. The upper surface of the support member 1b is horizontal. The receiving member 21-2 is slidable along the upper surface of the supporting member 1b.

The comb plate 10 is supported by the receiving member 21 so that it can be displaced in the A direction with respect to the receiving member 21. In the example shown in this embodiment, the comb plate 10 is spanned between the receiving members 21-1 and 21-2.

One end 10a of the comb plate 10 is supported by a receiving member 21-1. The end portion 10a is movable in the A direction with respect to the receiving member 21-1. The end 10a is the end adjacent to the support member 1a. For example, the end portion 10a is placed on the upwardly inclined surface 21-1a of the receiving member 21-1. The inclined surface 21-1a is slightly inclined to become higher toward the A direction. The end portion 10a of the comb plate 10 is slidable along the inclined surface 21-1a.

The other end 10b of the comb plate 10 is supported by a receiving member 21-2. The end portion 10b is movable in the A direction with respect to the receiving member 21-2. End portion 10b is an end portion adjacent to support member 1b. For example, the end portion 10b is placed on the upwardly inclined surface 21-2a of the receiving member 21-2. The inclined surface 21-2a is slightly inclined to become higher toward the A direction. The end portion 10b of the comb plate 10 is slidable along the inclined surface 21-2a.

The comb plate 10 has a comb 10c. The comb 10c faces the tread surface of the step 2 when the step 2 passes below. For example, the comb 10c is arranged so that its tip engages with a cleat formed on the tread surface of the step 2.

The detector 22 detects that the distance that the receiving member 21 is displaced in the A direction with respect to the truss 1 has reached a first distance. The first distance is set in advance. In the example shown in this embodiment, the detector 22 includes a detector 22-1 and a detector 22-2.

The detector 22-1 detects that the distance that the receiving member 21-1 is displaced in the A direction with respect to the supporting member 1a has reached a first distance. For example, the detector 22-1 is a mechanical switch. The detector 22-1 is fixed to the support member 1a via an attachment member. The detector 22-1 is arranged such that its actuating piece faces the surface 21-1b of the receiving member 21-1 at a position a first distance away from the surface 21-1b in the A direction. The surface 21-1b is a surface facing the A direction.

When receiving member 21-1 is displaced a first distance in direction A relative to truss 1, surface 21-1b contacts the actuating piece of detector 22-1. As a result, detection is performed by the detector 22-1, and a detection signal is transmitted from the detector 22-1 to the control device 12.

The detector 22-2 detects that the distance that the receiving member 21-2 is displaced in the A direction with respect to the supporting member 1b has reached a first distance. For example, the detector 22-2 is a mechanical switch. The detector 22-2 is fixed to the support member 1b via an attachment member. The detector 22-2 is arranged such that its actuating piece faces the surface 21-2b of the receiving member 21-2 at a position a first distance away from the surface 21-2b in the A direction. The surface 21-2b is a surface facing the A direction.

When the receiving member 21-2 is displaced a first distance in the A direction relative to the truss 1, the surface 21-2b contacts the actuating piece of the detector 22-2. As a result, detection is performed by the detector 22-2, and a detection signal is transmitted from the detector 22-2 to the control device 12.

The regulating device 23 regulates the distance by which the receiving member 21 can be displaced in the A direction with respect to the truss 1 to a second distance. The second distance is longer than the first distance and is set in advance. In the example shown in this embodiment, the regulating device 23 includes a regulating device 23-1 and a regulating device 23-2.

The regulating device 23-1 regulates the distance by which the receiving member 21-1 can be displaced in the A direction with respect to the supporting member 1a to a second distance. For example, the regulating device 23-1 includes a bolt 23-1a fixed to the support member 1a and a bolt 23-1b fixed to the receiving member 21-1. The bolt 23-1a and the bolt 23-1b are arranged in a straight line so that each axis is along the A direction. Further, the bolt 23-1a is arranged such that its head faces the head of the bolt 23-1b at a position separated from the head of the bolt 23-1b by a second distance in the A direction.

When the receiving member 21-1 is displaced by a second distance in the A direction with respect to the truss 1, the head of the bolt 23-1b contacts the head of the bolt 23-1a. As a result, displacement of the receiving member 21-1 in the A direction with respect to the truss 1 is regulated by the regulating device 23-1. That is, when the bolt 23-1b contacts the bolt 23-1a, the receiving member 21-1 cannot be displaced any further in the A direction.

The regulating device 23-2 regulates the distance by which the receiving member 21-2 can be displaced in the A direction with respect to the supporting member 1b to a second distance. For example, the regulating device 23-2 includes a bolt 23-2a fixed to the support member 1b and a bolt 23-2b fixed to the receiving member 21-2. The bolt 23-2a and the bolt 23-2b are arranged in a straight line so that each axis is along the A direction. Further, the bolt 23-2a is arranged such that its head faces the head of the bolt 23-2b at a position separated from the head of the bolt 23-2b by a second distance in the A direction.

When the receiving member 21-2 is displaced by a second distance in the A direction with respect to the truss 1, the head of the bolt 23-2b contacts the head of the bolt 23-2a. As a result, displacement of the receiving member 21-2 in the A direction with respect to the truss 1 is regulated by the regulating device 23-2. That is, when the bolt 23-2b contacts the bolt 23-2a, the receiving member 21-2 cannot be displaced any further in the A direction.

The delay device 24 is a device that delays the displacement of the comb plate 10 in the A direction relative to the receiving member 21 than the displacement of the receiving member 21 in the A direction relative to the truss 1. When the comb 10c receives a force in the A direction, the delay device 24 maintains the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 even after the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23. The displacement of the comb plate 10 is delayed so that the displacement continues.

In the example shown in FIGS. 3 and 4, the delay device 24 includes a spring 25 and a spring 26. The spring 25 generates a resistance force when the receiving member 21 is displaced in the A direction with respect to the truss 1. The spring 26 generates a resistance force when the comb plate 10 is displaced in the A direction with respect to the receiving member 21. The spring constant of spring 26 is greater than the spring constant of spring 25.

In the example shown in this embodiment, the springs 25 include a spring 25-1 and a spring 25-2. The spring 25-1 generates a resistance force when the receiving member 21-1 is displaced in the A direction with respect to the supporting member 1a. For example, the spring 25-1 is arranged between the surface of the receiving member 21-1 facing the A direction and the surface of the supporting member 1a facing the C direction. The C direction is the opposite direction to the A direction. That is, the support member 1a is always pushed in the A direction by the spring 25-1, and the receiving member 21-1 is always pushed in the C direction by the spring 25-1.

If no external force is acting on the safety device, the receiving member 21-1 is configured such that the distance between the surface 21-1b and the detector 22-1 is the first distance, and the distance between the bolt 23-1b and the bolt 23-1a is the first distance. It is held relative to the support member 1a so that the distance is the second distance.

The spring 25-2 generates a resistance force when the receiving member 21-2 is displaced in the A direction with respect to the supporting member 1b. For example, the spring 25-2 is arranged between the surface of the receiving member 21-2 facing the A direction and the surface of the supporting member 1b facing the C direction. That is, the support member 1b is always pushed in the A direction by the spring 25-2, and the receiving member 21-2 is always pushed in the C direction by the spring 25-2.

If no external force is acting on the safety device, the receiving member 21-2 is configured such that the distance between the surface 21-2b and the detector 22-2 is the first distance, and the distance between the bolt 23-2b and the bolt 23-2a is the first distance. It is held relative to the support member 1b so that the distance is the second distance.

Further, in the example shown in this embodiment, the springs 26 include a spring 26-1 and a spring 26-2. The spring 26-1 generates a resistance force when the comb plate 10 is displaced in the A direction with respect to the receiving member 21-1. For example, the spring 26-1 is arranged between the surface of the end portion 10a of the comb plate 10 facing the A direction and the surface of the receiving member 21-1 facing the C direction. That is, the receiving member 21-1 is always pushed in the A direction by the spring 26-1, and the comb plate 10 is always pushed in the C direction by the spring 26-1.

The spring 26-2 generates a resistance force when the comb plate 10 is displaced in the A direction with respect to the receiving member 21-2. For example, the spring 26-2 is arranged between the surface of the end portion 10b of the comb plate 10 facing the A direction and the surface of the receiving member 21-2 facing the C direction. That is, the receiving member 21-2 is always pushed in the direction A by the spring 26-2, and the comb plate 10 is always pushed in the direction C by the spring 26-2.

If no external force is acting on the safety device, the comb plate 10 is held at a position closest to the entrance 3 within its movable range.

Next, with reference also to FIGS. 5 to 8, the operation when the comb 10c receives a force in the A direction will be described. 5 to 8 are diagrams for explaining an example of the operation of the safety device. 5 to 8 are views corresponding to the BB cross section shown in FIG. 3.

FIG. 5 shows a state in which the foreign object D stuck to the tread surface in step 2 is in contact with the tip of the comb 10c. The foreign object D moves in the A direction together with step 2. Therefore, when the foreign object D comes into contact with the tip of the comb 10c, the comb 10c is then pushed in the direction A by the foreign object D.

When the comb 10c is pushed in the A direction, the receiving member 21 is displaced in the A direction with respect to the truss 1, and the comb plate 10 is displaced in the A direction with respect to the receiving member 21. As mentioned above, the spring constant of spring 26 is greater than the spring constant of spring 25. In other words, the load required to compress the spring 26 (= repulsive force F2) in a state where no external force is acting on the safety device is greater than the load required to compress the spring 25 (= repulsive force F1). big. Therefore, when the comb 10c is pushed in the A direction, the amount of displacement of the receiving member 21 in the A direction with respect to the truss 1 is greater than the amount of displacement of the comb plate 10 in the A direction with respect to the receiving member 21.

When the receiving member 21 is displaced by a first distance in the A direction with respect to the truss 1, the displacement of the receiving member 21 is detected by the detector 22. As a result, a detection signal is transmitted from the detector 22 to the control device 12. FIG. 6 shows a state when a detection signal is transmitted from the detector 22.

When the control device 12 receives the detection signal from the detector 22, it starts an operation to stop step 2. However, it takes a certain amount of time after the detection by the detector 22 is performed until the step 2 is completely stopped. During this time as well, step 2 moves in the A direction. Therefore, the comb 10c is pushed in the direction A by the foreign object D even after the detection by the detector 22 is performed.

When the receiving member 21 is displaced by the second distance in the A direction with respect to the truss 1 , the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23 . That is, since the bolt 23-1b contacts the bolt 23-1a, the receiving member 21-1 cannot be displaced any further in the A direction. When the bolt 23-2b comes into contact with the bolt 23-2a, the receiving member 21-2 can no longer be displaced in the A direction. In the following, the state in which the displacement of the receiving member 21 in the A direction with respect to the truss 1 is restricted by the restriction device 23 will also be referred to as a first restriction state. FIG. 7 shows the state immediately after entering the first regulation state.

The displacement of the receiving member 21 in the A direction with respect to the truss 1 needs to be regulated by the regulating device 23 after the detection by the detector 22 is performed and before an excessive load is applied to the detector 22. The second distance is appropriately set to a distance that can prevent damage to the detector 22, depending on the first distance and the specifications of the detector 22. As an example, the second distance is set to 10 mm.

The comb plate 10 can be displaced in the A direction with respect to the receiving member 21 even when the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23 . Furthermore, the comb plate 10 is pushed in the A direction by the foreign object D even after the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23 . Therefore, after the displacement of the receiving member 21 in the A direction is regulated by the regulating device 23, the comb plate 10 is displaced in the A direction with respect to the receiving member 21 as the spring 26 is further compressed. More specifically, the comb plate 10 is displaced in the direction A along the inclined surfaces 21-1a and 21-2a.

FIG. 8 shows a state where step 2 is stopped. In the state shown in FIG. 8, the position of the receiving member 21 with respect to the truss 1 is the same as that shown in FIG. The position of the comb plate 10 relative to the receiving member 21 is shifted in the direction A from the position shown in FIG. In the state shown in FIG. 8, the floorboard 9 is pushed by the comb board 10 and is displaced upward and in the A direction. The floorboard 9 is attached to the truss 1 on the premise that the displacement shown in FIG. 8 will occur.

As described above, in this safety device, when the comb 10c is pushed in the A direction, first, the receiving member 21 is mainly displaced in the A direction with respect to the truss 1. As a result, detection is performed by the detector 22, and an operation for stopping step 2 is started. Thereafter, displacement of the receiving member 21 is regulated by the regulating device 23, and damage to the detector 22 is prevented. After the regulation by the regulation device 23 is performed, the comb plate 10 is displaced in the A direction with respect to the receiving member 21.

In this way, in this safety device, when the comb 10c is pushed in the A direction, two stages of displacement occur: one for detection by the detector 22, and one for preventing damage to equipment such as the detector 22. displacement is performed. For example, in an escalator with a rated speed of 30 m/min, the distance that step 2 moves after detection by the detector 22 can be about 0.1 m to 0.6 m. With this safety device, this two-step displacement function can prevent equipment such as the detector 22 from being damaged after the displacement of the comb plate 10 is detected by the detector 22. It is also effective in protecting foreign matter D.

In the present embodiment, a preferred example has been described in which the receiving member 21, the detector 22, the regulating device 23, and the delay device 24 are provided on both sides of the comb plate 10, respectively. This is an example. The receiving member 21, the detector 22, the regulating device 23, and the delay device 24 may be provided only on one side of the comb plate 10. The receiving member 21, the detector 22, the regulating device 23, and the delay device 24 may be provided only at the center of the comb plate 10.

In the present embodiment, a preferred example has been described in which "repulsion force F2>repulsion force F1" is achieved by making the spring constant of the spring 26 larger than the spring constant of the spring 25. This is an example. If possible, "repulsion force F2>repulsion force F1" may be realized by other methods. For example, "repulsion force F2>repulsion force F1" may be realized by making the initial compression amount of the spring 26 larger than the initial compression amount of the spring 25.

In this embodiment, an example has been described in which the foreign object D stuck to the tread surface in step 2 pushes the comb 10c in the direction A. In addition, even if the step 2 is lifted, the comb 10c can be pushed in the direction A by the lifted step 2.

Next, another example in which a safety device can be adopted will be described. In the example shown below, only the points that are different from the example described above will be explained in detail.

FIG. 9 is a diagram schematically showing another example of the safety device. FIG. 9 shows a cross section corresponding to the BB cross section in FIG. Also in the example shown in FIG. 9, the safety device includes a comb plate 10, a receiving member 21, a detector 22, a regulating device 23, and a delay device 24. The comb plate 10 and the receiving member 21 are the same as in the example described above.

In the example shown in FIG. 9, the detector 22 detects that the distance that the comb plate 10 is displaced in the A direction with respect to the receiving member 21 has reached the first distance.

For example, the detector 22-1 detects that the distance by which the end portion 10a of the comb plate 10 is displaced in the A direction with respect to the receiving member 21-1 has reached a first distance. Detector 22-1 is fixed to receiving member 21-1. The detector 22-1 is arranged such that its actuating piece faces the surface 10-1a of the comb plate 10 at a position away from the surface 10-1a by a first distance in the A direction. For example, the end portion 10a of the comb plate 10 includes an upwardly extending protrusion. The surface 10-1a is the surface of the projection facing in the A direction.

The detector 22-2 (not shown) detects that the distance by which the end portion 10b of the comb plate 10 is displaced in the A direction with respect to the receiving member 21-2 has reached a first distance. The detector 22-2 is fixed to the receiving member 21-2 in the same configuration as the detector 22-1 is fixed to the receiving member 21-1.

In the example shown in FIG. 9, the regulating device 23 regulates the distance by which the comb plate 10 can be displaced in the direction A relative to the receiving member 21 to a second distance. The second distance is longer than the first distance and is set in advance.

For example, the regulating device 23-1 regulates the distance by which the end portion 10a of the comb plate 10 can be displaced in the direction A relative to the receiving member 21-1 to a second distance. In the example shown in FIG. 9, the regulating device 23-1 includes a regulating member 23-1c fixed to the receiving member 21-1 and a bolt 23-1d fixed to the end 10a of the comb plate 10. The regulating member 23-1c is arranged such that the surface facing the C direction faces the head of the bolt 23-1d at a position a second distance away from the head of the bolt 23-1d in the A direction.

When the end portion 10a of the comb plate 10 is displaced by a second distance in the A direction with respect to the receiving member 21-1, the head of the bolt 23-1d comes into contact with the regulating member 23-1c. As a result, displacement of the comb plate 10 in the A direction with respect to the receiving member 21-1 is regulated by the regulating device 23-1. That is, when the bolt 23-1d contacts the regulating member 23-1c, the end portion 10a of the comb plate 10 cannot be displaced any further in the A direction.

The regulating device 23-2 (not shown) regulates the distance by which the end portion 10b of the comb plate 10 can be displaced in the direction A relative to the receiving member 21-2 to a second distance. The regulating device 23-2 has a configuration similar to that of the regulating device 23-1. For example, the regulating device 23-2 includes a regulating member corresponding to the regulating member 23-1c and a bolt corresponding to the bolt 23-1d. The regulating member is fixed to the receiving member 21-2. The bolt is fixed to the end portion 10b of the comb plate 10.

In the example shown in FIG. 9, the delay device 24 is a device for delaying the displacement of the receiving member 21 relative to the truss 1 in the direction A than the displacement of the comb plate 10 relative to the receiving member 21 in the direction A. When the comb 10c receives a force in the A direction, the delay device 24 maintains the displacement of the receiving member 21 in the A direction with respect to the truss 1 even after the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is regulated by the regulating device 23. The displacement of the receiving member 21 is delayed so that the displacement continues.

In the example shown in FIG. 9, the delay device 24 includes a spring 25 and a spring 26. The spring 25 generates a resistance force when the receiving member 21 is displaced in the A direction with respect to the truss 1. The spring 26 generates a resistance force when the comb plate 10 is displaced in the A direction with respect to the receiving member 21. The spring constant of spring 25 is greater than the spring constant of spring 26.

In the example shown in FIG. 9, the springs 25 include a spring 25-1 and a spring 25-2 (not shown), as in the above-described example. Further, as the springs 26, a spring 26-1 and a spring 26-2 (not shown) are provided.

Next, referring also to FIGS. 10 to 12, the operation when the comb 10c receives a force in the direction A in the example shown in FIG. 9 will be described. 10 to 12 are diagrams for explaining an example of the operation of the safety device. 10 to 12 show cross sections corresponding to the BB cross section shown in FIG. 3.

When the foreign object D comes into contact with the tip of the comb 10c, the comb 10c is then pushed in the direction A by the foreign object D. As mentioned above, in the example shown in FIG. 9, the spring constant of the spring 25 is greater than the spring constant of the spring 26. In other words, the load required to compress the spring 25 (= repulsive force F1) from a state where no external force is acting on the safety device is greater than the load required to compress the spring 26 (= repulsive force F2). big. Therefore, when the comb 10c is pushed in the A direction, the amount of displacement of the comb plate 10 in the A direction relative to the receiving member 21 is greater than the displacement amount of the receiving member 21 in the A direction relative to the truss 1.

When the comb plate 10 is displaced by a first distance in the A direction with respect to the receiving member 21, the displacement of the comb plate 10 is detected by the detector 22. As a result, a detection signal is transmitted from the detector 22 to the control device 12. FIG. 10 shows a state when a detection signal is transmitted from the detector 22.

When the comb plate 10 is displaced by the second distance in the A direction with respect to the receiving member 21, the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is regulated by the regulating device 23. In the following, the state in which the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is restricted by the restriction device 23 will also be referred to as a second restriction state. FIG. 11 shows the state immediately after entering the second regulation state.

The receiving member 21 can be displaced in the A direction with respect to the truss 1 even when the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is regulated by the regulating device 23. Furthermore, even after the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is regulated by the regulating device 23, the comb plate 10 is pushed in the A direction by the foreign object D. Therefore, after the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is regulated by the regulating device 23, the comb plate 10 and the receiving member 21 are moved in the A direction with respect to the truss 1 by further compression of the spring 25. Displaced in the direction.

FIG. 12 shows a state in which step 2 is stopped. In the state shown in FIG. 12, the position of the comb plate 10 with respect to the receiving member 21 is the same as that shown in FIG. The position of the receiving member 21 with respect to the truss 1 is shifted in the direction A from the position shown in FIG. In the state shown in FIG. 12, the floorboard 9 is pushed by the comb board 10 and is displaced upward and in the A direction.

The example shown in FIG. 9 can also provide the same effects as the examples shown in FIGS. 3 and 4.

FIG. 13 is a diagram schematically showing another example of the safety device. FIG. 13 shows a cross section corresponding to the BB cross section in FIG. The example shown in FIG. 13 differs from the examples shown in FIGS. 3 and 4 in that the delay device 24 further includes a delay member 27. The example shown in FIG. 13 is different from the examples shown in FIGS. 3 and 4 in that the spring constant of the spring 26 does not have to be larger than the spring constant of the spring 25. The spring constant of the spring 26 may be larger or smaller than the spring constant of the spring 25. The spring constant of the spring 26 may be the same as that of the spring 25. Other points are similar to the examples shown in FIGS. 3 and 4.

In the example shown in FIG. 13, the delay device 24 is a device for delaying the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 than the displacement of the receiving member 21 in the A direction with respect to the truss 1. When the comb 10c receives a force in the A direction, the delay device 24 causes the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 after the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23. The displacement of the comb plate 10 is delayed so that the displacement of the comb plate 10 starts.

The delay member 27 prevents displacement of the comb plate 10 in the A direction relative to the receiving member 21 until the comb 10c receives the first force in the A direction in the first regulation state. The delay member 27 allows the comb plate 10 to be displaced in the A direction relative to the receiving member 21 when the comb 10c receives a first force in the A direction in the first regulation state. The first force is larger than the force with which the spring 25 pushes the truss 1 when the receiving member 21 is displaced in the A direction with respect to the truss 1.

In the example shown in FIG. 13, the delay member 27 includes a delay member 27-1 and a delay member 27-2 (not shown). The delay member 27-1 allows the comb plate 10 to be displaced in the A direction relative to the receiving member 21-1 when the comb 10c receives a first force in the A direction in the first regulation state. For example, delay member 27-1 is a pin. The delay member 27-1 is arranged so as to pass through the end portion 10a of the comb plate 10, and its tip end is inserted into a hole formed in the inclined surface 21-1a of the receiving member 21-1. Further, the delay member 27-1 is arranged perpendicularly to the inclined surface 21-1a.

The delay member 27-2 allows the comb plate 10 to be displaced in the A direction relative to the receiving member 21-2 when the comb 10c receives a first force in the A direction in the first regulation state. The delay member 27-2 has a configuration similar to that in which the delay member 27-1 is attached to the end portion 10a of the comb plate 10 and the receiving member 21-1. It can be attached to.

Next, referring also to FIGS. 14 and 15, the operation when the comb 10c receives a force in the direction A in the example shown in FIG. 13 will be described. 14 and 15 are diagrams for explaining an example of the operation of the safety device. 14 and 15 show cross sections corresponding to the BB cross section shown in FIG. 3.

When the foreign object D comes into contact with the tip of the comb 10c, the comb 10c is then pushed in the direction A by the foreign object D. In the example shown in FIG. 13, since the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is prevented by the delay member 27, first, the spring 25 is compressed and the receiving member 21 is moved in the A direction with respect to the truss 1. Displaced to.

When the receiving member 21 is displaced by a first distance in the A direction with respect to the truss 1, the displacement of the receiving member 21 is detected by the detector 22. Further, when the receiving member 21 is displaced by a second distance in the A direction with respect to the truss 1 , the displacement of the receiving member 21 in the A direction with respect to the truss 1 is regulated by the regulating device 23 . FIG. 14 shows the state immediately after entering the first regulation state. The comb plate 10 is not displaced in the A direction with respect to the receiving member 21 until the first regulation state is reached.

When the comb 10c receives the first force in the A direction in the first regulation state, an excessive shearing load acts on the delay member 27, causing the delay member 27 to break. Note that the first force is set so that the detector 22 will not be damaged before the delay member 27 is broken. By breaking the delay member 27, the comb plate 10 can be displaced in the A direction with respect to the receiving member 21. As a result, compression of the spring 26 is started, and the comb plate 10 is displaced in the A direction with respect to the receiving member 21.

FIG. 15 shows a state where step 2 is stopped. In the state shown in FIG. 15, only the tip of the delay member 27-1 remains on the receiving member 21-1.

In the examples shown in FIGS. 13 to 15, the comb plate 10 is not displaced in the A direction with respect to the receiving member 21 from the time when the comb 10c starts to be pushed in the A direction until the detection by the detector 22 is performed. . Therefore, detection by the detector 22 can be performed with high accuracy. Furthermore, since there is no need to increase the spring constant of the spring 26, it is also effective in protecting foreign matter D.

FIG. 16 is a diagram schematically showing another example of the safety device. FIG. 16 shows a cross section corresponding to the BB cross section in FIG. The example shown in FIG. 16 differs from the example shown in FIG. 9 in that the delay device 24 further includes a delay member 27. The example shown in FIG. 16 is different from the example shown in FIG. 9 in that the spring constant of the spring 26 does not have to be larger than the spring constant of the spring 25. The spring constant of the spring 26 may be larger or smaller than the spring constant of the spring 25. The spring constant of the spring 26 may be the same as that of the spring 25. Other points are similar to the example shown in FIG.

In the example shown in FIG. 16, the delay device 24 is a device for delaying the displacement of the receiving member 21 relative to the truss 1 in the A direction than the displacement of the comb plate 10 relative to the receiving member 21 in the A direction. When the comb 10c receives a force in the A direction, the delay device 24 causes the displacement of the receiving member 21 relative to the truss 1 in the A direction after the displacement of the comb plate 10 in the A direction relative to the receiving member 21 is regulated by the regulating device 23. The displacement of the receiving member 21 is delayed so that the displacement of the receiving member 21 starts.

The delay member 27 prevents displacement of the receiving member 21 in the A direction with respect to the truss 1 until the comb 10c receives the first force in the A direction in the second restriction state. The delay member 27 allows the receiving member 21 to be displaced in the A direction with respect to the truss 1 when the comb 10c receives the first force in the A direction in the second regulation state. The first force is greater than the force with which the spring 26 pushes the receiving member 21 when the comb plate 10 is displaced in the direction A relative to the receiving member 21.

In the example shown in FIG. 16, the delay member 27 includes a delay member 27-1 and a delay member 27-2 (not shown). The delay member 27-1 enables displacement of the receiving member 21-1 in the A direction with respect to the truss 1 when the comb 10c receives the first force in the A direction in the second regulation state. For example, delay member 27-1 is a pin. The delay member 27-1 is arranged so as to penetrate both the lower part of the receiving member 21-1 and the upper part of the support member 1a. Furthermore, the delay member 27-1 is arranged perpendicular to the A direction.

The delay member 27-2 enables displacement of the receiving member 21-2 in the A direction with respect to the truss 1 when the comb 10c receives the first force in the A direction in the second regulation state. The delay member 27-2 is attached to the receiving member 21-2 and the supporting member 1b in the same configuration as the delay member 27-1 is attached to the receiving member 21-1 and the supporting member 1a.

Next, referring also to FIGS. 17 and 18, the operation when the comb 10c receives a force in the A direction in the example shown in FIG. 16 will be described. 17 and 18 are diagrams for explaining an example of the operation of the safety device. 17 and 18 show cross sections corresponding to the BB cross section shown in FIG. 3.

When the foreign object D comes into contact with the tip of the comb 10c, the comb 10c is then pushed in the direction A by the foreign object D. In the example shown in FIG. 13, since displacement of the receiving member 21 in the A direction with respect to the truss 1 is prevented by the delay member 27, the spring 26 is first compressed and the comb plate 10 is moved in the A direction with respect to the receiving member 21. Displaced to.

When the comb plate 10 is displaced by a first distance in the A direction with respect to the receiving member 21, the displacement of the comb plate 10 is detected by the detector 22. Further, when the comb plate 10 is displaced by a second distance in the A direction with respect to the receiving member 21, the displacement of the comb plate 10 in the A direction with respect to the receiving member 21 is regulated by the regulating device 23. FIG. 17 shows the state immediately after entering the second regulation state. The receiving member 21 is not displaced in the A direction with respect to the truss 1 until the second regulation state is reached.

When the comb 10c receives the first force in the A direction in the second regulation state, an excessive shearing load acts on the delay member 27, causing the delay member 27 to break. Note that the first force is set so that the detector 22 will not be damaged before the delay member 27 is broken. By breaking the delay member 27, the receiving member 21 can be displaced in the A direction with respect to the truss 1.
As a result, compression of the spring 25 is started, and the receiving member 21 is displaced in the A direction with respect to the truss 1. FIG. 18 shows a state where step 2 is stopped.

In the example shown in FIGS. 16 to 18, the receiving member 21 is not displaced in the A direction with respect to the truss 1 from the time when the comb 10c begins to be pushed in the A direction until the detection by the detector 22 is performed. Therefore, detection by the detector 22 can be performed with high accuracy. Further, since it is not necessary to increase the spring constant of the spring 25, it is effective in protecting foreign matter D.

1 truss, 1a-1b support member, 2 step, 3 entrance, 4 exit, 5 machine room, 6 floor board, 7 comb board, 8 machine room, 9 floor board, 10 comb board, 10a-10b end, 10- 1a surface, 10c comb, 11 electric motor, 12 control device, 13 speed reducer, 14 shaft, 15 sprocket, 16 step chain, 17 step shaft, 18 skirt guard, 21 receiving member, 21-1 to 21-2 receiving member, 21 -1a ~ 21-2a Slanted surface, 21-1b ~ 21-2b Surface, 22 Detector, 22-1 ~ 22-2 Detector, 23 Regulatory device, 23-1 ~ 23-2 Regulatory device, 23-1a ~ 23-1b bolt, 23-1c regulating member, 23-1d bolt, 23-2a to 23-2b bolt, 24 delay device, 25 spring, 25-1 to 25-2 spring, 26 spring, 26-1 to 26- 2 spring, 27 delay member, 27-1 to 27-2 delay member

Claims (8)

floorboards and
moving in a first direction to get under the floorboard;
a truss supporting the moving step;
a receiving member supported by the truss so as to be displaceable in the first direction with respect to the truss;
a comb board having a comb facing the tread surface of the step and supported by the receiving member so as to be movable in the first direction with respect to the receiving member;
a detector that detects that a distance by which the receiving member is displaced in the first direction with respect to the truss has reached a first distance;
a regulating device that regulates a distance that the receiving member can be displaced in the first direction with respect to the truss to a second distance that is longer than the first distance;
When the comb receives a force in the first direction, the displacement of the receiving member relative to the truss in the first direction is regulated by the regulating device, and then the comb plate relative to the receiving member is regulated in the first direction. a delay device for delaying the displacement of the comb plate relative to the displacement of the receiving member so that displacement of the comb plate begins or continues;
Passenger conveyor with. The delay device is
a first spring that generates a resistance force when the receiving member is displaced in the first direction with respect to the truss;
a second spring that generates a resistance force when the comb plate is displaced in the first direction with respect to the receiving member;
Equipped with
The passenger conveyor according to claim 1, wherein the spring constant of the second spring is greater than the spring constant of the first spring. The delay device is
a first spring that generates a resistance force when the receiving member is displaced in the first direction with respect to the truss;
a second spring that generates a resistance force when the comb plate is displaced in the first direction with respect to the receiving member;
When the comb receives a first force in the first direction with displacement of the receiving member relative to the truss in the first direction being regulated by the regulating device, the comb plate is displaced in the first direction relative to the receiving member. a delay member that allows displacement in one direction;
Equipped with
The passenger conveyor of claim 1, wherein the first force is greater than the force with which the first spring pushes the truss when the receiving member is displaced in the first direction relative to the truss. floorboards and
moving in a first direction to get under the floorboard;
a truss supporting the moving step;
a receiving member supported by the truss so as to be displaceable in the first direction with respect to the truss;
a comb board having a comb facing the tread surface of the step and supported by the receiving member so as to be movable in the first direction with respect to the receiving member;
a detector that detects that a distance by which the comb plate is displaced in the first direction with respect to the receiving member reaches a first distance;
a regulating device that regulates a distance by which the comb plate can be displaced in the first direction relative to the receiving member to a second distance that is longer than the first distance;
When the comb receives a force in the first direction, the displacement of the comb plate relative to the receiving member in the first direction is regulated by the regulating device, and then the receiving member is moved in the first direction relative to the truss. a delay device for delaying displacement of the receiving member relative to displacement of the comb plate so that displacement of the receiving member begins or continues;
Passenger conveyor with. The delay device is
a first spring that generates a resistance force when the receiving member is displaced in the first direction with respect to the truss;
a second spring that generates a resistance force when the comb plate is displaced in the first direction with respect to the receiving member;
Equipped with
The passenger conveyor according to claim 4, wherein the spring constant of the first spring is greater than the spring constant of the second spring. The delay device is
a first spring that generates a resistance force when the receiving member is displaced in the first direction with respect to the truss;
a second spring that generates a resistance force when the comb plate is displaced in the first direction with respect to the receiving member;
When the comb receives a first force in the first direction while the displacement of the comb plate relative to the receiving member in the first direction is regulated by the regulating device, the displacement of the receiving member relative to the truss is a delay member that allows displacement in one direction;
Equipped with
5. The passenger conveyor according to claim 4, wherein the first force is greater than the force with which the second spring pushes the receiving member when the comb plate is displaced in the first direction relative to the receiving member. floorboards and
moving in a first direction to get under the floorboard;
a truss supporting the moving step;
A safety device used in a passenger conveyor equipped with a
a receiving member supported by the truss so as to be displaceable in the first direction with respect to the truss;
a comb board having a comb facing the tread surface of the step and supported by the receiving member so as to be movable in the first direction with respect to the receiving member;
a detector that detects that a distance by which the receiving member is displaced in the first direction with respect to the truss has reached a first distance;
a regulating device that regulates a distance that the receiving member can be displaced in the first direction with respect to the truss to a second distance that is longer than the first distance;
When the comb receives a force in the first direction, the displacement of the receiving member relative to the truss in the first direction is regulated by the regulating device, and then the comb plate relative to the receiving member is regulated in the first direction. a delay device for delaying the displacement of the comb plate relative to the displacement of the receiving member so that displacement of the comb plate begins or continues;
Safety equipment with. floorboards and
moving in a first direction to get under the floorboard;
a truss supporting the moving step;
A safety device used in a passenger conveyor equipped with a
a receiving member supported by the truss so as to be displaceable in the first direction with respect to the truss;
a comb board having a comb facing the tread surface of the step and supported by the receiving member so as to be displaceable in the first direction with respect to the receiving member;
a detector that detects that a distance by which the comb plate is displaced in the first direction with respect to the receiving member reaches a first distance;
a regulating device that regulates a distance by which the comb plate can be displaced in the first direction relative to the receiving member to a second distance that is longer than the first distance;
When the comb receives a force in the first direction, the displacement of the comb plate relative to the receiving member in the first direction is regulated by the regulating device, and then the receiving member is moved in the first direction relative to the truss. a delay device for delaying the displacement of the receiving member relative to the displacement of the comb plate so that displacement of the receiving member begins or continues;
Safety device with.

Images