JP2023012784A - Movable handrail storage part safety device of passenger conveyor - Google Patents

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

PASSENGER CONVEYOR HANDLING HOUSE SAFETY DEVICE BACKGROUND OF THE INVENTION The present disclosure relates to passenger conveyor handrail stowage safety devices.

In the conventional passenger conveyor moving handrail storage part safety device, in order to prevent foreign objects from entering the moving handrail storage part, it is pivotally attached to the lower edge of the moving handrail storage part, and the moving handrail storage part edge and the moving handrail are pivoted to prevent foreign objects from entering the moving handrail storage part. A protection plate is provided to cover the space between the outer surface and the outer surface (see Patent Document 1, for example).

JP-A-9-142768

In the above-described conventional passenger conveyor handrail housing portion safety device, the protective plate is pivotally attached to the lower edge portion of the moving handrail housing portion 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 part, the protective plate is pressed by the foreign object and tilts in the direction in which the moving handrail enters. When the inclination 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 toward the lodging side, and holds the protective plate in the lying position. Press to stop the passenger conveyor. With such a mechanism, when a foreign object enters the moving handrail housing portion, the distance between the moving handrail and the protection plate is increased, so that the foreign object can be easily taken out. However, when the protective plate is tilted by a foreign object trying to enter the moving handrail storage section and the foreign object is to be taken out before the dead point is exceeded, the holding force of the elastic holding mechanism urges the protective plate in the upright direction. be done. In addition, foreign matter is caught in the gap between the moving handrail and the protective plate, making it difficult to remove the foreign matter.

SUMMARY OF THE INVENTION The present disclosure has been made to solve the above-described problems, and to provide a moving handrail storage part safety device for a passenger conveyor that can easily take out a foreign object when it enters the moving handrail storage part. It is intended for

A moving handrail storage unit safety device for a passenger conveyor according to the present disclosure includes a moving handrail storage unit that has an opening and stores a part of the moving handrail so that the moving handrail enters the opening; A protection plate provided to cover a space between the handrail and attached to the moving handrail storage part so as to be openable and closable, and an engagement that engages the protection plate so as to maintain the closed state of the opening of the moving handrail storage part. means, a spring member for biasing the protective plate engaged by the engaging means toward the inside of the moving handrail housing portion, and detecting an abnormality of the passenger conveyor when the protective plate is disengaged by the engaging means. and an anomaly detection means for detecting.

The moving handrail storage part safety device of the passenger conveyor of the present disclosure includes a spring member that biases the protective plate engaged by the engaging means toward the inside of the moving handrail storage part, thereby allowing the handrail to enter the moving handrail storage part. When the engagement of the protective plate is released by the foreign object, the space of the opening of the moving handrail housing expands, so that the foreign object can be easily taken out.

Fig. 2 is a side view of the passenger conveyor according to Embodiment 1; FIG. 4 is a front view when two protective plates are attached to the opening of the moving handrail storage section in Embodiment 1; 4 is a cross-sectional view taken along line A-A' in a state where the opening of the moving handrail storage part is closed by two protective plates according to Embodiment 1. FIG. 4 is a cross-sectional view taken along line A-A' in a state in which the opening of the moving handrail housing portion is opened by two protective plates in Embodiment 1. FIG. FIG. 4 is a front view when three protective plates are attached to the opening of the moving handrail storage section according to Embodiment 1; FIG. 4 is a B-B' cross-sectional view showing a state in which the opening of the moving handrail storage part in Embodiment 1 is opened by three protective plates; FIG. 11 is a cross-sectional view taken along line A-A′ in a state where the opening of the moving handrail housing portion is closed by two protective plates according to Embodiment 2; FIG. 11 is a cross-sectional view taken along line A-A′ in a state where the opening of the moving handrail storage section is opened by two protective plates according to Embodiment 2;

Embodiment 1.
A moving handrail storage section safety device for a passenger conveyor according to Embodiment 1 will be described. As shown in FIG. 1, balustrades 1 are provided on both sides of steps (not shown) of a passenger conveyor, and moving handrails 3 are provided above guide rails 2 installed on the outer periphery of the balustrade 1 . A base part 4 is provided in the lower part of the balustrade 1, and a moving handrail storage part 5 for storing the moving handrail 3 moved while being guided by the guide rail 2 is provided in the base part 4. - 特許庁The moving handrail storage part 5 has an opening, and the moving handrail 3 enters the opening, and a part of the moving handrail 3, that is, the entered part is stored inside the moving handrail storage part 5.例文帳に追加

As shown in FIG. 2, the opening of the moving handrail storage part 5 is provided with two protective plates 6 so as to cover the space between the edge of the opening and the moving handrail 3 and close the opening. . As shown in FIG. 3, the protection plate 6 is attached to the edge of the opening of the moving handrail storage part 5 so as to be freely opened and closed, and is supported so as to be opened and closed in different rotation directions with a hinge 7 as a rotation axis. Here, these rotation axes are parallel to each other.

In order to maintain the closed state of the opening of the handrail housing portion 5, a latch 8, which is engaging means for engaging two protective plates 6, is provided at the edge of the opening of the handrail housing portion 5. As shown in FIG. A tension spring 9 is attached to the surface of the guard plate 6 within the handrail housing 5 . The tension spring 9 is a spring member that urges the protection plate 6 to open toward the inside of the handrail housing portion 5 when the engagement of the protection plate 6 by the latch 8 is released. A switch 10, which is an abnormality detecting means for detecting an abnormality of the passenger conveyor, is provided in the moving handrail housing portion 5. As shown in FIG. An operating piece 11 is provided on the protective plate 6 to press the switch 10 . The actuating piece 11 is attached at a position where it can press the switch 10 when the protective plate 6 is disengaged and opened.

Next, the operation of the moving handrail storage section safety device in the passenger conveyor constructed in this manner will be described. The passenger conveyor starts operating with the opening of the moving handrail housing portion 5 closed by the protective plate 6 . When the passenger conveyor starts to operate, the moving handrail 3 is guided by the guide rail 2 from the opening at one end of the base 4 and moves along the balustrade 1 in the longitudinal direction. stored in.

When a foreign object tries to enter the moving handrail housing portion 5 during operation of the passenger conveyor, the invasion is prevented by a protection plate 6 provided at the opening of the moving handrail housing portion 5.例文帳に追加However, when the engagement of the protective plate 6 by the latch 8 is released by the foreign object, the tension spring 9 urges the protective plate 6 to open toward the inside of the handrail housing portion 5, and the protective plate 6 engages the hinge 7. It rotates as a rotating shaft, and the opening of the moving handrail storage part 5 opens. Here, opening inward means opening inside the handrail housing portion 5 instead of opening outside the handrail housing portion 5 with respect to the opening. When the protection plate 6 is opened, the operating piece 11 attached to the protection 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 for stopping the passenger conveyor, the stop signal is detected by the passenger conveyor control device, and the control device stops the drive motor.

As described above, the handrail storage section safety device of the first embodiment includes the protection plate 6 closing the opening of the handrail storage section 5 and the protection plate 6 engaged by the latch 8 of the handrail storage section 5. It is equipped with a tension spring 9 that biases the door to open inward and a switch 10 that detects an abnormality in the passenger conveyor. Therefore, even if a foreign object trying to enter the moving handrail housing part 5 releases the engagement of the protection plate 6 and the protection plate 6 does not fall down, the foreign matter does not have to release the engagement of the protection plate 6. If so, the opening space of the moving handrail housing portion 5 is enlarged. As a result, foreign matter can be prevented from being caught between the moving handrail 3 and the protective plate 6, and the foreign matter can be easily taken out. In addition, since the tension spring 9 always urges the protective plate 6 in the engaged state, the space of the opening can be enlarged immediately after the engagement is released, and the foreign matter can be easily taken out.

In the safety device for the moving handrail storage section of the passenger conveyor according to Embodiment 1, the foreign matter trying to enter the moving handrail storage section 5 releases the engagement of the protection plate 6 and the protection plate 6 opens. When the switch 10 is pressed by the operating piece 11, the passenger conveyor detects an abnormality and stops the operation. Therefore, the foreign matter is prevented from entering deeply into the moving handrail housing portion 5, and the foreign matter can be easily taken out.

Furthermore, in the safety device for the moving handrail storage part of the passenger conveyor in Embodiment 1, since the two protective plates 6 are opened inwards of the moving handrail storage part 5 in different rotational directions, the moving handrail storage part 5 It is possible to prevent foreign matter that has entered inside from coming into contact with the switch 10 and other internal devices in the moving handrail storage part 5 and damaging them. In particular, since the rotation directions are different, it is possible to cover a plurality of different surfaces in the inner surface of the moving handrail housing portion 5 and hide foreign matter. For example, when the two protective plates 6 are double-folded in the left-right direction, the left and right surfaces can be covered, so that the protection range can be widened. In addition, since the protection plate 6 is made of a plate, it contributes to a reduction in the material used for the protection member.

Although two protective plates 6 are attached to the edge of the opening of the moving handrail housing portion 5, the number of protective plates 6 may be one or three or more. By constructing the protective plate 6 with one sheet, the trouble of installing the protective plate 6 can be reduced. As shown in FIGS. 5 and 6, when three or more protection plates 6 are used, at least one protection plate 6 is attached so that the rotation axis of at least one protection plate 6 is at a different angle from the rotation axes of the other protection plates 6 . By mounting in this manner, foreign objects entering the moving handrail housing portion 5 can be protected from three or more directions, and damage caused by contact with internal equipment in the moving handrail housing portion 5 can be prevented.

In Embodiment 1, the latch 8 is provided at the edge of the opening of the moving handrail housing portion 5, but it may be provided on the surface of the protective plate 6 as shown in FIG. Moreover, the engaging means of the protective plate 6 may not be the latch 8, and a magnet or the like may be used.

Although the tension spring 9 is used to urge the protection plate 6 to open inwardly of the handrail housing portion 5 , a plate spring is installed in the hinge 7 to open the protection plate 6 inwardly of the handrail housing portion 5 . may be biased open. Although the switch 10 is used as means for detecting an abnormality in the passenger conveyor, an illuminance sensor or a pressure sensor may be used to detect the opening of the protection plate 6 and detect an abnormality.

Even in the safety device for the moving handrail housing portion of the passenger conveyor constructed in this manner, foreign matter trying to enter the moving handrail housing portion 5 releases the engagement of the protective plate 6 and causes the protective plate 6 to fall down. Even if it is not done, if the engagement of the protection plate 6 is released, the space of the opening of the moving handrail storage part 5 is enlarged. Therefore, foreign matter can be prevented from being caught between the moving handrail 3 and the protective plate 6, and the foreign matter can be easily taken out.

Embodiment 2.
A moving handrail storage section safety device for a passenger conveyor according to Embodiment 2 will be described. 7 and 8, the same reference numerals as in FIGS. 3 and 4 denote the same or corresponding parts. In the passenger conveyor moving handrail storage section safety device of the second embodiment, the switch 10 of the passenger conveyor moving handrail storage section safety device of the first embodiment is pressed by the operating piece 11, whereas the operating piece 11 is pressed. The switch 10 is pressed by the protection plate 6 without providing it. At this time, the switch 10 is arranged so as to come into contact with the protection plate 6 when the protection plate 6 is opened.

Even in the moving handrail storage part safety device for the passenger conveyor shown in the second embodiment configured in this manner, the same operation as the moving handrail storage part safety device for the passenger conveyor shown in the first embodiment can be performed. do. That is, even if the foreign matter that tries to enter the moving handrail housing portion 5 releases the engagement of the protection plate 6 and the protection plate 6 does not fall down, the foreign matter can move as long as the engagement of the protection plate 6 is released. Since the empty space of the opening of the handrail housing part 5 is enlarged, it is possible to prevent the foreign matter from being caught between the moving handrail 3 and the protection plate 6, so that the foreign matter can be easily taken out.

Also in the second embodiment described above, as in the first embodiment, the protective plate 6 may be composed of one sheet or three or more sheets. Also, the latch 8 may be provided on the surface of the protective plate 6 rather than on the edge of the opening of the handrail housing portion 5 . The engaging means of the protection plate 6 may not be the latch 8, and a magnet or the like may be used.

A tension spring 9 is used to urge the protection plate 6 to open toward the inside of the handrail housing portion 5 , but a plate spring is installed on the hinge 7 to move the protection plate 6 toward the inside of the handrail housing portion 5 . May be biased open. Although the switch 10 is used as means for detecting an abnormality in the passenger conveyor, an illuminance sensor or a pressure sensor may be used to detect the opening of the protective plate 6 and detect an abnormality.

3 moving handrail, 5 moving handrail housing, 6 protective plate, 7 hinge, 8 latch, 9 tension spring, 10 switch

Claims (5)

a moving handrail storage unit having an opening for storing a part of the moving handrail so that the moving handrail enters the opening;
a protective plate provided so as to cover a space between the moving handrail storage part and the moving handrail in the opening and attached to the moving handrail storing part so as to be openable and closable;
engaging means for engaging the protection plate to maintain the closed state of the opening of the handrail housing;
A handrail storage section safety device for a passenger conveyor, comprising a spring member that biases the protection plate engaged by the engaging means to open toward the inside of the handrail storage section. 2. A safety device for a moving handrail housing portion of a passenger conveyor according to claim 1, wherein said spring member always biases said protection plate toward said inside of said moving handrail housing portion. an abnormality detection means for detecting an abnormality of the passenger conveyor when the engagement of the protection plate by the engagement means is released;
3. The moving handrail storage section safety device for a passenger conveyor according to claim 1, wherein said abnormality detecting means outputs a stop signal for stopping said passenger conveyor when detecting an abnormality of said passenger conveyor. 4. The protection plate is composed of a plurality of protection plates, and the rotation axes of the plurality of protection plates are parallel to each other and rotate in different rotation directions when the plurality of protection plates are opened and closed. 3. Passenger conveyor moving handrail stowage safety device according to claim 1. 4. The handrail housing part is provided with said protection plate so that said protection plate is composed of a plurality of protection plates, and said plurality of protection plates are provided in said moving handrail storage part so that the rotation axes thereof are at different angles when opening and closing said plurality of protection plates. 10. Passenger conveyor moving handrail stowage safety device according to any one of the preceding claims.

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