CN211871104U

CN211871104U - Elevator car ceiling rescue device

Info

Publication number: CN211871104U
Application number: CN201922075311.5U
Authority: CN
Inventors: 若狭美幸
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 2019-01-08
Filing date: 2019-11-27
Publication date: 2020-11-06
Anticipated expiration: 2029-11-27
Also published as: JP2020111399A

Abstract

The utility model discloses an embodiment relates to a car ceiling save-out device of elevator. When a rescue exit door for closing the rescue exit of the car ceiling is opened, the rescue exit can be safely opened with good operability while avoiding interference with the car frame and passengers in the car room. The utility model discloses an embodiment's car ceiling save-out device of elevator possesses: a rescue opening (16) that opens to the ceiling (14) of the car (10); a rescue door (21) which opens and closes the rescue outlet (16) and to which a ceiling illumination device (26) is integrally attached; a rotating shaft (24) that supports the rescue door (21) at a position offset from one end of the rescue door (21) so that the rescue door (21) rotates toward the car interior when the rescue outlet (16) is opened; and a closing lock mechanism (30) for fixing or releasing the rescue door (21) to the ceiling.

Description

Elevator car ceiling rescue device

Technical Field

The utility model discloses an embodiment relates to a car ceiling save-out device of elevator.

Background

In an elevator car, a rescue hatch is provided in a car ceiling or a car side plate so that passengers can be rescued when the car is stopped in an emergency. When the elevator is emergently stopped at a non-stop floor, the adjacent elevator car is stopped as a rescue car to the side of the emergency-stopped car, and the rescue exit is opened to transfer passengers to the rescue car.

Conventionally, a rescue exit is provided at a rescue exit of a car, and the rescue exit is closed by the rescue exit in a normal state. In the case where the rescue exit is on the ceiling of the car, the rescue exit is opened by an operation from the car.

However, a lighting device for illuminating the inside of the car is provided on the ceiling of the car. Further, a car frame that holds the car and is connected to the main rope is provided in the car. When the rescue doors are provided on the ceiling of the car, it is necessary to consider the arrangement position, size, and the like of the lighting device and the car frame. This is because the lighting device and the car frame on the operation track of the rescue door interfere with each other when the rescue door is opened and closed, and it is difficult to open the rescue door. Therefore, conventionally, various improvements have been made in a rescue device provided on a ceiling of a car in order to minimize restrictions and interference on the rescue device from a car frame and a lighting device.

For example, patent document 1 describes a rescue device applied to a car ceiling of a double structure, in which a rescue exit opening/closing cover is attached to an outer ceiling plate provided with a rescue exit, and an inspection exit opening/closing cover for closing an inspection exit is provided to an inner ceiling plate inside. In this rescue device, the inspection hatchway opening and closing cover is removed by moving it in the horizontal direction, and the movement required for opening is reduced.

Further, patent document 2 discloses the following: in order to open the rescue exit without removing the lighting device from the ceiling, the cover for opening and closing the rescue exit is slidably moved in conjunction with the lighting device by a link mechanism.

Patent document 1: international publication No. WO2008/090593

Patent document 2: japanese patent laid-open publication No. 2016-94292

In the conventional ceiling rescue device, the rescue opening and the ceiling illumination device are provided separately. When the rescue exit and the rescue door are provided at other positions where the lighting device is not provided, the rescue exit and the rescue door are exposed on the ceiling surface along the opening portion closed by the rescue door, and the appearance of the ceiling surface is extremely poor. Further, in the structure in which the rescue cover is removed from the ceiling, the large-sized rescue cover is heavy in weight, and there is a problem that an excessive load is required for the removal work.

In this case, in order to improve the design of the ceiling surface and simplify the operation of opening the rescue door, it is desirable to integrate the rescue door with the lighting device.

In recent years, a ceiling lighting device of a car has a relatively large structure including a lighting housing, and may occupy a considerable area of a ceiling surface. As a rescue exit door integrated with such a large illumination device, a structure in which the rescue exit door is opened and closed by rotation is conceivable, but the problem that the operation locus of the rescue exit door becomes large and the car frame interferes with the rescue exit door becomes more and more obvious.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a car ceiling rescue device for an elevator, which can avoid interference between a passenger in a car room and a car frame when a rescue door is opened, and which can open a rescue opening with good operability and safety.

In order to achieve the above object, according to one embodiment of the present invention, an elevator car ceiling rescue apparatus includes: a rescue opening which is opened in the ceiling of the car; a rescue door for opening and closing the rescue opening and integrally mounting a ceiling lighting device; a rotary shaft supporting the rescue door at a position offset from one end of the rescue door so that the rescue door rotates toward a car room when the rescue opening is opened; and a closing lock mechanism for fixing the rescue door to the ceiling or releasing the fixing.

Drawings

Fig. 1 is a perspective view showing a car to which a car ceiling rescue apparatus according to an embodiment of the present invention is applied.

Fig. 2 is a view showing a rotary shaft for rotatably supporting the rescue door.

Fig. 3 is a view of the rescue door as viewed from a direction perpendicular to the longitudinal direction.

Fig. 4 is a perspective view showing a structure of the closing lock mechanism.

Fig. 5(a) to 5(C) are views showing the releasing operation of the closing fixing mechanism for fixing the rescue door to the ceiling.

Fig. 6 is a view showing the rescue door slid in the horizontal direction in fig. 3.

Detailed Description

Hereinafter, an embodiment of a car ceiling rescue device for an elevator according to the present invention will be described with reference to the drawings.

Fig. 1 is a perspective view showing a car to which a car ceiling rescue device according to the present embodiment is applied. In fig. 1, reference numeral 10 denotes a car. The

vertical frames

11 and 12, the upper frame 13, and a lower frame not shown constitute a car frame that supports the car 10. The upper frame 13 is connected to the end of a main rope (not shown). Reference numeral 20 denotes a car ceiling rescue device provided on the ceiling 14 of the car 10.

A rescue outlet 16 serving as an outlet for rescuing passengers is opened in the center of the ceiling 14. The rescue exit 16 is opened and closed by a rescue door 21. Fig. 1 shows the rescue door 21 in an open state. The rescue door 21 is a door of a lower opening type that opens while rotating toward the inside of the car room.

Next, fig. 2 is a view showing a rotary shaft that rotatably supports the rescue door 21. Reference numeral 24 denotes a rotation shaft of the rescue door 21. The rotary shaft 24 is disposed perpendicular to the longitudinal direction of the rescue door 21, and both ends of the rotary shaft 24 are supported by

support brackets

25a, 25b fixed to the ceiling 14. The rotary shaft 24 is disposed at a position offset (biased) from the end of the rescue door 21 toward the inside of the rescue opening 16.

In this embodiment, as the rescue door 21, a plate member having reinforcing

portions

22a and 22b bent at right angles at side edge portions is used for reinforcement.

Long holes

23a, 23b that are horizontally long are formed in the vertical surfaces of the reinforcing

portions

22a, 22 b. Both ends of the rotating shaft 24 are inserted into the

elongated holes

23a and 23b, respectively.

Next, fig. 3 is a view of the rescue door 21 as viewed from a direction perpendicular to the longitudinal direction.

As shown in fig. 3, a ceiling illumination device 26 is attached to the lower surface of the rescue door 21. As the illumination case 27 of the ceiling illumination device 26, an illumination case smaller than the outer shape of the rescue door 21 is attached. The illumination case 27 is smaller than the rescue outlet 16, does not interfere with the ceiling 14, and is rotatable integrally with the rescue outlet 16.

Fig. 3 shows a state in which the rescue door 21 is closed and the rescue outlet 16 is closed. The rescue door 21 is set in a closed state such that the front end 21a and the rear end 21b are placed on the ceiling 14, respectively, and the weight of the rescue door 21 is applied to the

ends

21a, 21 b. In fig. 3, reference numeral 30 denotes a closing lock mechanism that locks the rescue door 21 so as not to open during normal operation of the elevator.

Here, fig. 4 is a perspective view showing the off-lock mechanism 30.

The closing lock mechanism 30 is disposed at a corner of the rescue door 21, and includes a door fixing screw 31, a stopper 33, and a latch 34. The door fixing screws 31 are wing screws that fix the rescue door 21 to a bracket fixed to the ceiling 14. The stopper 33 is engaged with an engagement hole 35 formed in the bracket 39, and is capable of preventing the rescue door 21 from being opened in the middle even when the door fixing screw 31 and the latch 34 are released. The rescue door 21 can be opened only slightly unless the screw 32 is released and the stopper 33 is disengaged from the engagement hole 35. A switch 40 for detecting the open/close state of the rescue door 21 is disposed near the latch 34. Reference numeral 42 denotes a chain having one end connected to the ceiling 14 and the other end connected to the rescue door 21. The chain 42 is used as a cable-like auxiliary support member for assisting in supporting the weight of the rescue door 21 when the rescue door 21 rotates.

The car ceiling rescue device for an elevator according to the present embodiment is configured as described above, and its operation and effects will be described below.

When the elevator is normally operated, the rescue door 21 is closed as shown in fig. 3. The rescue door 21 is fixed to the ceiling 14 by a door fixing screw 31 and a latch 34. As shown in fig. 5(a), the stopper 33 engages with the engagement hole 35. The latch 34 is configured to be able to recognize the state where the rescue door 21 is closed without any problem through the control panel by turning on the switch 40 and receiving the signal.

As shown in fig. 3, the front end 21a and the rear end 21b of the rescue door 21 overlap the ceiling 14, respectively, and the rescue door 21 is fixed in a state of being supported by the ceiling 14. The rescue door 21 can be made to ensure the following strength: in the periodic inspection or the like, when the worker performs the inspection work on the car, the worker stands on the rescue door 21 and performs the work with sufficient strength.

When an abnormality occurs in the elevator due to some cause and the car 10 stops in an emergency, the rescue doors 21 are opened as follows to rescue the trapped passengers. The operation of opening the rescue door 21, which will be described below, is performed by an operator standing on the car.

Fig. 5(a) to 5(C) are views showing the releasing operation of the closing lock mechanism 30 for fixing the rescue door 21 to the ceiling 14. Fig. 5(a) shows the positions of the latch 34 and the stopper 33 when the rescue door 21 is closed. The stopper 33 is in contact with the upper edge of the engagement hole 35, and has a clearance (gap) until it comes into contact with the lower edge.

First, to release the closing of the rescue door 21, the latch 34 is pulled and the door fixing screw 31 (see fig. 4) is removed. The screws 32 fixing the stopper 33 remain tightened. At this stage, the rescue door 21 cannot be opened yet, but as shown in fig. 6, the rescue door 21 can slide in the horizontal direction. Therefore, the rear end portion 21b of the rescue door 21, which has been overlapped with the ceiling 14 up to this point, is slid to be separated from the ceiling 14. In this case, the rotation shaft 24 is fitted into the

elongated holes

23a and 23b, and thus the sliding operation of the rescue door 21 is allowed. In fig. 5(a), the engaging hole 35 with which the stopper 33 is engaged also has a width that can achieve the above-described sliding amount. In this way, since the support by the ceiling 14 is lost, the rescue door 21 can be opened by being rotated about the rotary shaft 24 as a fulcrum.

In the present embodiment, the rescue door 21 is not directly opened at a time, but is gradually opened in order while the stopper 33 is activated.

As shown in fig. 5(B), when the position of the rescue door 21 is lowered by the rotation, the stopper 33 comes into contact with the lower edge of the engagement hole 35, and the rotation of the rescue door 21 is stopped. In this way, even if the rescue door 21 is released from closing, the rescue door 21 does not immediately rotate quickly by its own weight to be fully opened, but slightly opens and stops, so that it is possible to avoid an accident in which the rescue door 21 collides with a passenger in the car room or an operator on the car and injures the passenger.

Next, when the rescue door 21 is fully opened, the screw 32 is loosened and the stopper 33 is pulled out from the engagement hole 35 in fig. 5 (C). In this case, in fig. 4, when the worker pulls out the stopper 33, the worker can hold the chain 42 in advance and support the rescue door 21. In this way, even if the stopper 33 is disengaged, the rescue door 21 can be rotated slowly while being supported by the chain 42 in an auxiliary manner, and can be opened safely.

In the present embodiment, as shown in fig. 6, the rotation shaft 24 of the rescue door 21 is offset from the front end 21a of the rescue door 21 by a predetermined distance. Due to this offset, in the rescue door 21 that is rotated and opened toward the car interior, the amount of projection of the rescue door 21 from the ceiling 14 and the amount of projection into the car interior can be appropriately adjusted. That is, by setting an appropriate offset, when the rescue door 21 is fully opened, the front end 21a of the rescue door 21 does not contact the upper frame 13, and the rear lower end 21b does not contact a passenger in the car room.

Further, according to the present embodiment, since the rescue door 21 is rotated and opened and closed integrally with the ceiling illumination device 26, there is an advantage that the appearance design is improved without increasing the number of lines around the rescue door 21 to the ceiling 14.

The car ceiling rescue device for an elevator according to the present invention has been described above by way of example with reference to the preferred embodiments, but these embodiments are given by way of example and are not intended to limit the scope of the present invention. It is to be understood that the novel devices, methods and systems described in the specification can be implemented in various forms, and various omissions, substitutions and changes can be made therein without departing from the spirit of the invention. The claims and their equivalents are intended to cover the embodiments or modifications within the scope of the spirit of the invention.

Claims

1. A car ceiling rescue device for an elevator, comprising:

a rescue opening which is opened in the ceiling of the car;

a rescue door for opening and closing the rescue opening and integrally mounting a ceiling lighting device;

a rotary shaft supporting the rescue door at a position offset from one end of the rescue door so that the rescue door rotates toward the car interior when the rescue opening is opened; and

and closing the locking mechanism to fix the rescue door to the ceiling or release the rescue door from the ceiling.

2. The car ceiling rescue apparatus of an elevator according to claim 1,

both ends of the rotary shaft are slidably fitted into a long groove formed in the rescue door, and both ends of the rescue door in the sliding direction overlap with an end edge of the rescue opening to support the weight of the rescue door in a state where the rescue door closes the rescue opening.

3. The car ceiling rescue apparatus of an elevator according to claim 1 or 2,

the closing lock mechanism includes a stopper that restricts an opening operation of the rescue door immediately after the rescue door is released from being fixed.

4. The car ceiling rescue apparatus of an elevator according to claim 1 or 2,

the rescue door is connected to the ceiling through a cord-like auxiliary support member for supporting the weight of the rescue door in an auxiliary manner during rotation.