JP2001316063A - Rescue operating device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a rescue operating device for an elevator impeding opening action of a door released in a landing in a prescribed position, when rescue operating work is performed of a car stopped by abnormality. SOLUTION: When a door 3 released in a landing 2 is manually opened, at rescue operating work time for a car stopped by abnormality, opening action of the door 3 is impeded by a function of an impeding mechanism 12 in the beginning of opening action in a prescribed position, that is, in a narrow door opening width where a person can not easily pass through. Accordingly, when the landing 2 is released by a foreman, the door 3 is opened to a surplus amount, when the car is lifted to reach the landing 2 by operating a rescue operator, by opening the door 3 to a surplus amount, a trouble of tension relating to a falling accident or the like forced to the foreman working in the landing 2 can be eliminated, the rescue operating work is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator rescue operation device which releases braking of a hoist by manual operation when a car abnormally stops and moves up and down to a landing by the weight of the car.

[0002]

2. Description of the Related Art FIG. 5 is a vertical sectional view of a main part of a hoistway showing a conventional rescue operation state of an elevator similar to the structure disclosed in Japanese Utility Model Publication No. 5-30069.
In the drawing, 1 is a hoistway provided with a landing 2, 3 is a door for opening and closing the entrance of the landing 2, 4 is a hoisting machine installed on the bottom surface of the hoistway 1, and a braking device for braking a rotating body 5 for braking. A motive 6 is provided. Reference numeral 7 denotes a main rope that is hung on a sheave of the hoisting machine 4 and that suspends a car (not shown) that moves up and down the hoistway 1.

Reference numeral 8 denotes a foot-operated rescue operation device, which is housed near the landing 2 in the hoistway 1, and when the car is abnormally stopped at a position off the landing 2 due to a power failure or failure.
The person is taken out to the landing 2 by the attendant. A release cable 9 is composed of an outer tube and a flexible cable composed of a core wire inserted through the outer tube, one end of which is connected to the brake 6, and the other end of which is connected to the fixing portion of the rescue operation device 8. And the core wire is connected to the movable traction unit.

In the elevator rescue operation device configured as described above, the door 3 of the hall 2 which is locked when the car abnormally stops is unlocked and opened by the attendant.
Then, as shown in FIG. 5, the rescue operation device 8 is taken out to the landing 2, and the stepping portion, that is, the movable traction portion is intermittently pressed.

As a result, the braking by the brake 6 is released intermittently, and the car moves up and down intermittently due to its weight. Then, an operation of raising and lowering the car while observing the movement of the main ropes 7 from the open landing 2 and stopping the car at an appropriate landing 2 by a mark (not shown) provided on the main ropes 7 is performed. Thereby, the passenger in the car is rescued from the landing 2 where the car has stopped.

[0006]

In the elevator rescue operation device as described above, the door 3 of the hall 2 is unlocked and opened by a person in charge, and the rescue operation device 8 is operated in the hall 2 to operate the car. A rescue operation such as intermittent elevating is performed. As described above, the rescue operation is performed in the hall 2 that has been opened, so that the door 3 is opened further when the attendant unlocks the hall 2 or the door is opened more when the rescue operation device 8 is operated. Or For this reason, there has been a problem that a person working in the hall 2 is nervous for a fall accident or the like.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide an elevator rescue operation device in which an unlocked landing door is prevented from opening at a predetermined position. .

[0008]

In an elevator rescue operation apparatus according to the present invention, a brake for braking a rotating rotary body provided on a hoist of an elevator, an outer pipe, and an outer pipe inserted through the outer pipe. One end is connected to the brake, and the other end is held by an operation box provided at the landing of the elevator, and the core is pulled by manual operation. A release cable for releasing the braking action, and a disengagement cable that is provided at the landing and is normally disposed at a non-engagement position with respect to a door that opens and closes the landing,
A blocking mechanism is provided for displacing the landing operation device housed in the operation device box to a disengaged position to prevent the door from opening at a predetermined position.

In the elevator rescue operation device according to the present invention, a turning arm is provided at the lower edge of the entrance of the hall, and a blocking portion formed on the turning arm is provided at the lower end of the door. A blocking mechanism is provided that engages with an engaging element formed of the legs of the door and prevents the door from opening at a predetermined position.

In the elevator rescue operation device according to the present invention, a turning arm is provided at the upper edge of the entrance of the hall, and a blocking portion formed on the turning arm is provided at the upper end of the door. A blocking mechanism is provided that engages with an engaging element formed of a shaft of a hanging hand and prevents the door from opening at a predetermined position.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 3 show an example of an embodiment of the present invention. FIG. 1 is an elevation view conceptually showing a main part inside a hoistway, and FIG. 2 is a view showing a rescue operation situation in FIG. FIG. 3 is a landing side elevational view showing a rescue operation situation next to FIG. 2. In the figure, reference numeral 1 denotes a hoistway provided with a landing 2, and 3 denotes a door which opens and closes an entrance of the landing 2.

Reference numeral 4 denotes a hoisting machine installed on the bottom surface of the hoistway 1, and a brake 6 for braking the rotating body 5 for braking is provided. Reference numeral 7 denotes a main rope that is hung on a sheave of the hoisting machine 4 and that suspends a car (not shown) that moves up and down the hoistway 1. 10
Numeral denotes an operation box provided on the door stop side edge of the entrance 2 of the hall 2. Reference numeral 11 denotes a hall operation unit which is removably stored in the operation box 10 and is always mounted at a predetermined position.

Reference numeral 12 denotes a blocking mechanism provided on the landing 2, a pivoting arm having one end pivotally mounted near the middle of the entrance width of the lower edge of the landing 2 and the other end disposed immediately below the operation box 10. 13,
A blocking portion 15 is provided at the longitudinal middle of the rotating arm 13 and faces the engaging element 14 formed by the legs of the door of the door 3.
An operating rod 16 pivotally attached to the turning end of the vehicle and having an upper end slidably inserted into the lower side of the operating box 10 and impinging on the landing operating device 11 is provided.

The blocking mechanism 12 has a spring receiving member 17 fixed to the insertion end of the operating rod 16, and a compression fitting fitted to the operating rod 16 and disposed between the lower side of the operation box 10 and the receiving member 17. An urging member 18 composed of a coil spring is fixed to the operating rod 16 and is disposed below the lower side of the operation box 10. The restricting piece 19 restricts the upward displacement of the operating rod 16 by the urging member 18 at a predetermined position. Have been.

Reference numeral 8 denotes a foot-operated rescue operation device which is normally stored in an elevator management room or the like, and is operated by an attendant when the car is abnormally stopped at a position off the hall 2 due to a power failure or failure. It is arranged in hall 2. Reference numeral 9 denotes a release cable, which is composed of an outer tube and a flexible cable composed of a core wire inserted through the outer tube, and has a brake 6 at one end.
And the other end is always held in place in the operation box 10 at all times. Reference numeral 20 denotes a space formed between the door stop side edge of the entrance and exit of the hall 2 and the door 3 during the rescue operation of the elevator, which will be described in detail later.

In the rescue operation device for an elevator constructed as described above, the landing operating device 11 is always stored at a predetermined position of the operating box 10 and the operating rod 16 of the blocking mechanism 12 is provided.
Is located in the lowered position. As a result, the rotating arm 13 is arranged in a horizontal posture, and the blocking portion 15 is arranged at a position away from the engaging element 14 as shown in FIG.

When the car abnormally stops at a position off the hall 2 due to a power failure or a failure of the elevator, a foot-operated rescue operation device 8 stored in an elevator management room or the like is moved to the hall 2 by an attendant. Be placed.
Next, as shown in FIG. 3, the release cable 9 is pulled out from the operation box 10, the outer tube at the end on the operation box 10 side is connected to the fixed portion of the rescue operation device 8, and the core wire is a movable traction portion. Linked to

Then, from the operation box 10 to the landing operation unit 11
Is taken out by the attendant, whereby the operating rod 16 of the blocking mechanism 12 is urged upward by the urging body 18, so that the rotating arm 13 is engaged with the engaging element 14 in the state shown in FIG.
Is pressed upward. Next, the door 3 of the locked landing 2
Is unlocked by the attendant and the door is opened, at the beginning of this door opening operation, the rotating arm 13 urged upward rises, and the blocking portion 15 is fitted to the engagement element 14.

As a result, the state shown in FIG.
Is prevented at a predetermined position, and a void 20 is formed. The width of the space 20 is set to about 30 cm, which cannot be easily passed by a person. Then, in the state shown in FIG. 3, the stepping portion of the rescue operation device 8, that is, the movable traction portion is intermittently pressed by the space 20 while observing the behavior of the main rope 7.

As a result, the braking by the brake 6 is released intermittently, and the car moves up and down intermittently due to its weight. Then, an operation of raising and lowering the car while observing the movement of the main rope 7 from the space 20 and stopping the car at an appropriate landing 2 by a mark (not shown) provided on the main rope 7 is performed. Next, the passengers in the car are rescued from the landing 2 where the car has stopped.

In the rescue operation of such an elevator, the opening operation of the door 3, which is unlocked by the attendant and opened by the attendant, is blocked at a predetermined position by the function of the blocking mechanism 12, so that the cavity 20 is formed. . Then, the space 20 is set to a narrow width that a person cannot easily pass through. Therefore, when the clerk unlocks the hall 2, the door 3 is opened extra when the rescue operation device 8 is operated, and the door 3 is opened extra when the rescue operation device 8 is operated. It is possible to eliminate a problem that causes strain on a fall accident or the like.

Embodiment 2 FIG. FIG. 4 is a view corresponding to FIG. 1 showing an example of another embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 denote corresponding parts, 21 is a guide rail of a door 3 attached to the upper edge of the entrance of the hall 2, and 22 is a suspension provided on the door 3 and guided by the guide rail 21. hand,
Reference numeral 23 denotes an engaging element formed of a shaft of the hanging hand 22. Reference numeral 24 denotes a blocking mechanism, which is essentially the same as the blocking mechanism 12 described above. A corresponding blocking portion 26 is provided.

In the rescue operation device for an elevator constructed as described above, in the rescue operation operation when the car is abnormally stopped, the locking mechanism is used when the door 3 of the locked landing 2 is unlocked and opened. Since the door 24 is provided, the opening operation of the door 3 is blocked at a predetermined position by the function of the blocking mechanism 24 at the beginning of the door opening operation. Therefore, although detailed description is omitted, the embodiment of FIG.
The same operation as that of the embodiment can be obtained.

[0024]

As described above, the present invention provides a brake for braking a rotating body for braking provided on a hoist of an elevator, an outer tube, and a flexible body constituted by a core wire inserted through the outer tube. One end is connected to the brake, and the other end is held by an operation box provided at the landing of the elevator, for releasing the braking action of the brake by pulling the core wire by manual operation. The cable and the door provided at the landing that normally opens and closes the landing are disposed at the non-engagement position, and are displaced to the engagement position through removal of the landing operation device housed in the operation box, and the door is displaced. A blocking mechanism for blocking the opening operation at a predetermined position.

Thus, in the rescue operation when the car is abnormally stopped, when the door of the locked landing is unlocked and the door is opened, the opening operation of the door is determined by the blocking mechanism at an early stage of the door opening operation. It is blocked at a location, i.e. a narrow door opening, through which a person cannot easily pass. Therefore, when the staff unlocks the hall, the door is opened excessively, or when the rescue operation device is operated, the door is opened excessively. It is possible to solve the problem of imposing a severe tension and to facilitate the rescue operation.

As described above, according to the present invention, a pivot arm is provided at the lower edge of the entrance of the landing, and a blocking portion formed on the pivot arm is provided at the lower end of the door. A blocking mechanism is provided that engages with an engaging element formed of a leg and blocks the opening operation of the door at a predetermined position.

Thus, in the rescue operation when the car is abnormally stopped, when the door of the locked landing is unlocked and the door is opened, the rotating arm at the lower edge of the landing entrance is moved from the leg of the door. In the initial stage of the door opening operation, the opening operation of the door is prevented at a predetermined position, that is, at a narrow door opening width through which a person cannot easily pass. Therefore, when the staff unlocks the hall, the door is opened excessively, or when the rescue operation device is operated, the door is opened excessively. It is possible to solve the problem of imposing a severe tension and to facilitate the rescue operation.

Further, as described above, according to the present invention, a swing arm provided with a turning arm at the upper edge of the entrance of the landing, and a blocking portion formed at the turning arm provided at the upper end of the door. And a blocking mechanism for blocking the door opening operation at a predetermined position by engaging with the engaging element composed of the shafts.

Thus, in the rescue operation when the car is abnormally stopped, when the locked door of the landing is unlocked and the door is opened, the rotating arm at the upper edge of the landing entrance is moved to the axis of the lifting hand. In the initial stage of the door opening operation, the opening operation of the door is prevented at a predetermined position, that is, at a narrow door opening width where a person cannot easily pass through.
Therefore, when the staff unlocks the hall, the door is opened excessively, or when the rescue operation device is operated, the door is opened excessively. It is possible to solve the problem of imposing a severe tension and to facilitate the rescue operation.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention, and is an elevation view conceptually showing a main part inside a hoistway.

FIG. 2 is a view corresponding to FIG. 1, showing a rescue operation situation in FIG. 1;

FIG. 3 is a landing side elevation view showing the rescue operation situation next to FIG. 2;

FIG. 4 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 1 described above.

FIG. 5 is a vertical sectional view of a main part of a hoistway showing a rescue operation state by a conventional elevator rescue operation device.

[Explanation of symbols]

2 landing, 3 houses, 4 hoisting machine, 5 rotating body for braking, 6
Trigger, 9 Release cable, 10 Controller box, 11
Hall controller, 12 blocking mechanism, 13 rotating arm, 14
Engaging member, 15 blocking portion, 23 engaging member, 24 blocking mechanism, 26 blocking portion.

Claims (3)

[Claims] 1. A brake provided on an elevator hoist for braking a rotating body for braking, an outer tube and a flexible cable composed of a core wire inserted through the outer tube, and one end of which is the brake. The other end is held by an operation box provided at the landing of the elevator, and a release cable for releasing the braking action of the brake by pulling the core wire by manual operation; and The door is normally disposed at a non-engagement position with respect to the door that opens and closes the landing, and is displaced to the engagement position through removal of the landing operation device housed in the operation box to open the door. A rescue operation device for an elevator, comprising a blocking mechanism for blocking operation at a predetermined position. 2. A locking mechanism, comprising: a pivot arm provided at a lower edge portion of an entrance of a landing, and a blocking portion formed at the pivot arm formed by a door leg provided at a lower end of the door. Engage with
2. The rescue operation device for an elevator according to claim 1, wherein the opening operation of the door is prevented at a predetermined position. 3. The blocking mechanism according to claim 1, wherein a turning arm is provided at an upper edge of the entrance of the hall, and a blocking portion formed on the turning arm is formed of a shaft of a hanger provided at an upper end of the door. 2. The rescue operation device for an elevator according to claim 1, wherein the rescue operation device according to claim 1, wherein the door is engaged at a predetermined position to prevent the door from being opened.