Passenger conveyor moving handrail storage area safety device

Abstract

To provide a movable handrail storage part safety device of a passenger conveyor capable of easily taking out a foreign matter when the foreign matter enters a movable handrail storage part.SOLUTION: A protection plate 6 is openably / closably mounted on an opening of a movable handrail storage part 5 into which a movable handrail 3 enters so as to cover a space between the movable handrail storage part 5 and the movable handrail 3. The protection plate 6 is engaged by engagement means 8 and energized to be opened toward an inner direction of the movable handrail storage part 5 by a spring member 9. When the engagement of the protection plate 6 by the engagement means 8 is released, abnormality of a passenger conveyor is detected by abnormality detection means 10.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a handrail storage safety device for a passenger conveyor. [Background technology]

[0002] In a conventional safety device for the handrail storage section of a passenger conveyor, a protective plate is pivotally attached to the lower edge of the handrail storage section to prevent foreign objects from entering the handrail storage section and covers the gap between the edge of the handrail storage section and the outer surface of the handrail (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-142768 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional safety device for the moving handrail storage section of the passenger conveyor, the protective plate is pivotally attached to the lower edge of the moving handrail storage section and is always held in an upright position by the holding force of the elastic holding mechanism. When a foreign object tries to enter the moving handrail storage section, the protective plate is pressed by the foreign object and tilts in the direction of the moving handrail's entry. When the tilt of the protective plate exceeds the dead point of the holding force of the elastic holding mechanism, the elastic holding mechanism urges the protective plate to the collapsed side and holds the protective plate in the collapsed position, and at the same time, the elastic holding mechanism presses the abnormality detector and the passenger conveyor stops. With this mechanism, when a foreign object enters the moving handrail storage section, the gap between the moving handrail and the protective plate increases, making it easy to remove the foreign object. However, when the protective plate is in a state where it has been collapsed by a foreign object trying to enter the moving handrail storage section and an attempt is made to remove the foreign object before it exceeds the dead point, the protective plate is urged in the upright direction by the holding force of the elastic holding mechanism. Then, the foreign object is caught in the gap between the moving handrail and the protective plate, making it difficult to remove the foreign object.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a safety device for a handrail storage section of a passenger conveyor that allows for easy removal of foreign objects if they enter the handrail storage section. [Means for solving the problem]

[0006] The safety device for a moving handrail storage section of a passenger conveyor disclosed herein comprises a moving handrail storage section having an opening and storing a part of the moving handrail so that the moving handrail fits into the opening, a protective plate attached to the moving handrail storage section so as to cover the space between the moving handrail storage section and the moving handrail at the opening and be able to be opened and closed freely, an engagement means for engaging the protective plate to maintain the opening of the moving handrail storage section closed, a spring member for biasing the protective plate engaged by the engagement means toward the inside of the moving handrail storage section, and an abnormality detection means for detecting an abnormality in the passenger conveyor when engagement of the protective plate by the engagement means is released. Effect of the Invention

[0007] The safety device for a moving handrail storage section of a passenger conveyor according to the present disclosure includes a moving handrail storage section having an opening and storing a part of the moving handrail so that the moving handrail fits into the opening, the moving handrail storage section being provided to cover a void between the moving handrail storage section and the moving handrail at the opening, By rotation axis The device is provided with a protective plate attached to the movable handrail storage section so as to be able to be opened and closed freely, an engagement means provided on the protective plate for engaging the protective plate so as to maintain the opening of the movable handrail storage section in a closed state, and a spring member for biasing the protective plate engaged by the engagement means toward the inside of the movable handrail storage section, the protective plate being made up of a plurality of protective plates, The engaging means engages one of the plurality of protective plates with another protective plate other than the one protective plate. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a side view of the passenger conveyor in the first embodiment. [Diagram 2]This is a front view of the first embodiment when two protective plates are attached to the opening of the handrail storage section. [Diagram 3] This is an AA' cross-sectional view of the state in which the opening of the handrail storage section in embodiment 1 is closed by two protective plates. [Figure 4] This is an AA' cross-sectional view of the state in which the opening of the handrail storage section in embodiment 1 is opened by two protective plates. [Diagram 5] This is a front view of the first embodiment when three protective plates are attached to the opening of the handrail storage section. [Figure 6] This is a BB' cross-sectional view of the state in which the opening of the handrail storage section in embodiment 1 is opened by three protective plates. [Figure 7] This is an A-A' cross-sectional view of the second embodiment, showing a state in which the opening of the handrail storage section is closed by two protective plates. [Figure 8] This is an AA' cross-sectional view of the state in which the opening of the handrail storage section in embodiment 2 is opened by two protective plates. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Embodiment 1 A description will now be given of a safety device for a moving handrail storage section of a passenger conveyor in embodiment 1. As shown in Fig. 1, balustrades 1 are provided on both sides of the steps (not shown) of the passenger conveyor, and a moving handrail 3 is provided on the upper part of a guide rail 2 installed on the outer periphery of the balustrade 1. A base 4 is provided at the lower part of the balustrade 1, and a moving handrail storage section 5 is provided on the base 4 to store the moving handrail 3 that has been moved while being guided by the guide rail 2. The moving handrail storage section 5 has an opening, into which the moving handrail 3 fits, and a part of the moving handrail 3, i.e., the fitted part, is stored inside the moving handrail storage section 5.

[0010] As shown in Fig. 2, two protective plates 6 are provided at the opening of the movable handrail storage section 5 to cover the space between the edge of the opening and the movable handrail 3 and close the opening. As shown in Fig. 3, the protective plates 6 are attached to the edge of the opening of the movable handrail storage section 5 so as to be able to open and close freely, and are supported so as to open and close in different rotational directions with a hinge 7 as the rotation axis. Here, these rotation axes are parallel to each other.

[0011] A latch 8, which is an engagement means for engaging the two protective plates 6, is provided on the edge of the opening of the movable handrail storage section 5 in order to maintain the opening of the movable handrail storage section 5 in a closed state. A tension spring 9 is attached to the surface of the protective plate 6 inside the movable handrail storage section 5. This tension spring 9 is a spring member that urges the protective plate 6 to open toward the inside of the movable handrail storage section 5 when the engagement of the protective plate 6 by the latch 8 is released. In addition, a switch 10, which is an abnormality detection means for detecting an abnormality in the passenger conveyor, is provided inside the movable handrail storage section 5. An operating piece 11 is provided on the protective plate 6 to press the switch 10. The operating piece 11 is attached in a position where the switch 10 can be pressed when the engagement of the protective plate 6 is released and the protective plate 6 opens.

[0012] Next, the operation of the moving handrail storage safety device in the passenger conveyor configured as above will be described. The passenger conveyor starts operation with the opening of the moving handrail storage 5 closed by the protective plate 6. When the passenger conveyor starts operation, the moving handrail 3 is guided by the guide rail 2 from the opening at one end of the base 4, moves longitudinally along the balustrade 1, and is stored in the moving handrail storage 5 provided at the other end of the base 4.

[0013] When a foreign object tries to enter the movable handrail storage unit 5 while the passenger conveyor is in operation, the intrusion is prevented by the protective plate 6 provided at the opening of the movable handrail storage unit 5. However, when the foreign object releases the engagement of the protective plate 6 by the latch 8, the tension spring 9 urges the protective plate 6 to open toward the inside of the movable handrail storage unit 5, and the protective plate 6 rotates around the hinge 7 as the rotation axis, opening the opening of the movable handrail storage unit 5. Here, opening inward means opening toward the inside of the movable handrail storage unit 5, not toward the outside of the movable handrail storage unit 5, based on the opening. When the protective plate 6 opens, the operating piece 11 attached to the protective plate 6 presses the switch 10, so that the passenger conveyor detects an abnormality. That is, when the switch 10 detects an abnormality, it outputs a stop signal to stop the passenger conveyor, and this stop signal is detected by the control device of the passenger conveyor, and the control device stops the drive motor.

[0014] Thus, the handrail storage safety device of this embodiment 1 includes a protective plate 6 that closes the opening of the handrail storage 5, a tension spring 9 that urges the protective plate 6 engaged by the latch 8 to open toward the inside of the handrail storage 5, and a switch 10 that detects an abnormality in the passenger conveyor. Therefore, even if a foreign object that is trying to enter the handrail storage 5 releases the engagement of the protective plate 6 and does not collapse the protective plate 6, the empty space of the opening of the handrail storage 5 will expand as long as the foreign object releases the engagement of the protective plate 6. As a result, it is possible to prevent the foreign object from being caught between the handrail 3 and the protective plate 6, and the foreign object can be easily removed. In addition, since the tension spring 9 constantly urges the protective plate 6 in the engaged state, the empty space of the opening can be expanded immediately when the engagement is released, and the foreign object can be easily removed.

[0015] Furthermore, in the safety device for the moving handrail storage section of the passenger conveyor in embodiment 1, when a foreign object attempting to enter the moving handrail storage section 5 releases the engagement of the protective plate 6 and the protective plate 6 opens, the switch 10 is pressed by the operating piece 11, the passenger conveyor detects the abnormality and stops operating. This prevents the foreign object from penetrating too deeply into the moving handrail storage section 5 and makes it easy to remove the foreign object.

[0016] Furthermore, in the moving handrail storage safety device of the passenger conveyor in embodiment 1, the two protective plates 6 each open toward the inside of the moving handrail storage section 5 in a different rotation direction, so that it is possible to prevent foreign objects that have entered the moving handrail storage section 5 from coming into contact with and damaging the switch 10 or other internal equipment in the moving handrail storage section 5. In particular, because the rotation directions are different, it is possible to cover multiple different surfaces on the inner surface of the moving handrail storage section 5 and conceal foreign objects. For example, when the two protective plates 6 open like a double door in the left-right direction, it is possible to cover the left and right surfaces, thereby widening the protection range. In addition, because the protective plates 6 are made of plates, it contributes to reducing the material of the protective members.

[0017] Although it has been described that two protective plates 6 are attached to the edge of the opening of the movable handrail storage section 5, the number of protective plates 6 may be one or three or more. By configuring the protective plate 6 with one piece, the effort required for installing the protective plate 6 can be reduced. When configuring the protective plate 6 with three or more pieces as shown in Figures 5 and 6, at least one protective plate 6 is installed so that the rotation axis of the protective plate 6 is at a different angle from the rotation axis of the other protective plates 6. By installing them in this manner, foreign objects that enter the movable handrail storage section 5 can be protected from three or more directions, and can be prevented from coming into contact with and damaging the internal equipment in the movable handrail storage section 5.

[0018] In this embodiment 1, the latch 8 is provided on the edge of the opening of the handrail storage section 5, but it may be provided on the surface of the protective plate 6 as shown in Figure 5. Also, the engagement means of the protective plate 6 does not have to be the latch 8, and a magnet or the like may be used.

[0019] A tension spring 9 is used to urge the protective plate 6 to open towards the inside of the moving handrail storage section 5, but a leaf spring may be installed on the hinge 7 to urge the protective plate 6 to open towards the inside of the moving handrail storage section 5. A switch 10 is used as a means for detecting abnormalities in the passenger conveyor, but an illuminance sensor or pressure sensor may also be used to sense that the protective plate 6 has opened and detect the abnormality.

[0020] Even in the moving handrail storage safety device of the passenger conveyor configured in this way, if a foreign object attempts to enter the moving handrail storage 5, it will release the engagement of the protective plate 6, and even if the protective plate 6 is not lowered, the empty space at the opening of the moving handrail storage 5 will expand simply by releasing the engagement of the protective plate 6. Therefore, it is possible to prevent the foreign object from being caught between the moving handrail 3 and the protective plate 6, and the foreign object can be easily removed.

[0021] Embodiment 2 A description will now be given of a safety device for a moving handrail storage section of a passenger conveyor in embodiment 2. In Figures 7 and 8, the same reference numerals as in Figures 3 and 4 indicate the same or corresponding parts. The safety device for a moving handrail storage section of a passenger conveyor in embodiment 2 is configured such that, whereas the switch 10 of the safety device for a moving handrail storage section of a passenger conveyor in embodiment 1 is pressed by an operating piece 11, the operating piece 11 is not provided and the switch 10 is pressed by a protective plate 6. In this case, the switch 10 is positioned so as to come into contact with the protective plate 6 when the protective plate 6 is opened.

[0022] The safety device for the moving handrail storage section of the passenger conveyor shown in the second embodiment configured in this manner operates in the same manner as the safety device for the moving handrail storage section of the passenger conveyor shown in the first embodiment. That is, even if a foreign object attempts to enter the moving handrail storage section 5, it releases the engagement of the protective plate 6, and even if the protective plate 6 is not lowered, simply releasing the engagement of the protective plate 6 expands the empty space at the opening of the moving handrail storage section 5, so that it is possible to prevent the foreign object from being caught between the moving handrail 3 and the protective plate 6, and the foreign object can be easily removed.

[0023] In the above-mentioned embodiment 2, similarly to embodiment 1, the protective plate 6 may be configured with one plate or three or more plates. Furthermore, the latch 8 does not have to be provided on the edge of the opening of the movable handrail storage section 5, but may be provided on the surface of the protective plate 6. The engagement means of the protective plate 6 does not have to be the latch 8, but a magnet or the like may be used.

[0024] A tension spring 9 is used to urge the protective plate 6 to open towards the inside of the moving handrail storage section 5, but a leaf spring may be installed on the hinge 7 to urge the protective plate 6 to open towards the inside of the moving handrail storage section 5. A switch 10 is used as a means for detecting abnormalities in the passenger conveyor, but an illuminance sensor or pressure sensor may also be used to sense that the protective plate 6 has opened and detect the abnormality. [Explanation of symbols]

[0025] 3 handrail, 5 handrail storage section, 6 protective plate, 7 hinge, 8 latch, 9 tension spring, 10 switch

Claims

1. A handrail storage section having an opening and storing a part of the handrail so that the handrail fits into the opening; A protective plate is provided to cover a void between the handrail storage section and the handrail at the opening, and is attached to the handrail storage section so as to be freely opened and closed by a rotating shaft; An engagement means provided on the protective plate for engaging the protective plate to maintain the opening of the handrail storage section in a closed state; A spring member that biases the protective plate engaged by the engaging means toward the inside of the movable handrail storage section; Equipped with The protective plate is composed of a plurality of protective plates, A safety device for a moving handrail storage section of a passenger conveyor, characterized in that the engagement means engages one of the plurality of protective plates with another protective plate other than the one protective plate.

2. 2. The handrail storage section safety device of a passenger conveyor according to claim 1, wherein the spring member constantly urges the protective plate toward the inside of the handrail storage section.

3. an abnormality detection means for detecting an abnormality in the passenger conveyor when the engagement of the protective plate by the engagement means is released, 3. A safety device for a moving handrail storage section of a passenger conveyor according to claim 1 or 2, characterized in that the abnormality detection means outputs a stop signal to stop the passenger conveyor when it detects an abnormality in the passenger conveyor.

4. The rotation axes of the protective plates when opening and closing are parallel to each other, The safety device for a moving handrail storage section of a passenger conveyor according to any one of claims 1 to 3, wherein the plurality of protective plates rotate in different rotational directions.

5. A safety device for a handrail storage section of a passenger conveyor as described in any one of claims 1 to 3, characterized in that the multiple protective plates are provided in the handrail storage section so that the rotation axis is at different angles when the multiple protective plates are opened and closed.

6. A handrail storage section having an opening and storing a part of the handrail so that the handrail fits into the opening; A protective plate is provided to cover a void between the handrail storage section and the handrail at the opening and is attached to the handrail storage section so as to be openable and closable; An engagement means for engaging the protective plate to maintain the opening of the handrail storage section in a closed state; A spring member that biases the protective plate engaged by the engaging means toward the inside of the movable handrail storage section; Equipped with A safety device for a handrail storage section of a passenger conveyor, characterized in that the protective plate is composed of multiple protective plates and is installed in the handrail storage section so that the rotation axes of the multiple protective plates are at different angles when opening and closing.

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