JP2001097648A - Passenger rescue method of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rescue a passenger in a shorter time, by facilitating the rescuing work of the passenger. SOLUTION: A bracket 21 is installed to a part of a main rope 5, a winch 22 is installed between the bracket 21 and a winding machine 2 set at a pitch part 1a, and the bracket 21 is hung down by the winch 22. As a result, an elevator car 6 is raised through the main rope 5, and the elevator car 6 is to be raised to the nearest floor, as well as an emergency stopping device is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator passenger rescue method for rescuing passengers in a car by moving the car to the nearest floor when the car stops between floors, for example, during an earthquake. is there.

[0002]

2. Description of the Related Art FIG. 9 is an explanatory view for explaining an example of a conventional elevator rescue method. In the figure, a hoist 2 having a sheave 2a is installed at a pit (bottom) of a hoistway 1. In the upper part of the hoistway 1, rotatable car-side and weight-side return wheels 3, 4 are provided. A main rope 5 is wound around the sheave 2a, the car side and the weight side return wheels 3, 4. One end 5 a and the other end 5 b of the main rope 5 are fixed to the upper part of the hoistway 1.

[0003] One end 5a of the main rope 5 and the car side turning wheel 3
Between them, a car 6 is suspended. At the lower part of the car 6, a pair of car suspension wheels 7 around which the main rope 5 is wound are provided. A counterweight 8 is suspended between the other end 5b of the main rope 5 and the weight return wheel 4. Above the counterweight 8, a weight suspension wheel 9 around which the main rope 5 is wound is provided.

A lifting beam 1 fixed to the upper part of a hoistway 1
A winch 12 for lifting the car 6 is attached between the car 1 and the car 6. This winch 12
It has been removed during normal operation, and is carried in and attached when rescuing passengers.

For example, in the event of an earthquake or the like, the emergency stop device (not shown) malfunctions due to the swing of the car 6, causing the car 6 to make an emergency stop between floors.
May remain active. In this state, if a passenger is in the car 6, it is necessary to move the car 6 to the nearest floor and rescue the passengers immediately.

In such a case, conventionally, a winch 12 (or a chain block) is carried into the hoistway 1, and the winch 12 is attached between the lifting beam 11 and the car 6. 6 is lifted. Thus, by lifting the car 6 to some extent, the braking by the safety device is released. Thereafter, the car 6 is further lifted by the winch 6 and moved to the nearest floor. Then, the landing door and the car door are opened, and the passengers are rescued.

[0007]

In the conventional method for rescuing a passenger of an elevator as described above, a winch 12 and the like are attached between a lifting beam 11 and a car 6 at an upper portion of a hoistway 1, and then the car 6 Since it is necessary to carry out the work of lifting the car 6 above, there is a problem that the work is troublesome, and it takes a long time to rescue the passengers.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has an object to rescue passengers in a shorter time by facilitating the rescue operation of passengers. The aim is to get the method.

[0009]

According to a first aspect of the present invention, there is provided an elevator passenger rescue method in which a car is raised to a nearest floor from a state in which a brake device and an emergency stop device of a hoist are operated. A method of rescuing a passenger, the step of attaching a bracket to a part of a rope connected to a car, the step of attaching traction means between a bracket and a fixed part in a hoistway, the bracket being lowered by the traction means, The method includes a step of lifting the car through a rope to release the safety device, and a step of further lowering the bracket by the traction means and raising the car to the nearest floor.

According to a second aspect of the present invention, there is provided an elevator passenger rescue method, wherein a bracket is attached to a main rope for suspending a car in a hoistway.

According to a third aspect of the present invention, there is provided an elevator passenger rescue method, wherein a bracket is attached to a balancing rope suspended between a car and a balancing weight.

According to a fourth aspect of the present invention, an elevator passenger rescue method utilizes a fixed portion located in a pit portion of a hoistway.

According to a fifth aspect of the present invention, there is provided an elevator passenger rescue method, wherein a hoist installed in a pit portion is used as a fixed portion.

According to a sixth aspect of the present invention, there is provided an elevator passenger rescue method, wherein a mounting bracket as a fixing portion is fixed to a wall of a hoistway.

According to a seventh aspect of the present invention, there is provided a method for rescuing passengers of an elevator by raising a car to a nearest floor from a state in which a brake device and an emergency stop device of a hoist are operated. Attach the traction means between the counterweight and the fixed part in the hoistway, lower the counterweight by the traction means, and pull the basket through the main rope suspending the basket and the counterweight. It includes a step of raising the emergency stop device and a step of further lowering the counterweight by the traction means and raising the car to the nearest floor.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a perspective view showing an elevator passenger rescue method according to Embodiment 1 of the present invention. In the figure, a hoist 2 having a sheave (traction sheave) 2a is installed in a pit section 1a of a hoistway 1. In the upper part of the hoistway 1, rotatable car-side and weight-side return wheels 3, 4 are provided. A main rope 5 is wound around the sheave 2a, the car side and the weight side return wheels 3, 4.
One end 5 a and the other end 5 b of the main rope 5 are fixed to the upper part of the hoistway 1.

One end 5a of the main rope 5 and the car-side turning wheel 3
Between them, a car 6 is suspended. At the lower part of the car 6, a pair of car suspension wheels 7 around which the main rope 5 is wound are provided. A counterweight 8 is suspended between the other end 5b of the main rope 5 and the weight return wheel 4. Above the counterweight 8, a weight suspension wheel 9 around which the main rope 5 is wound is provided.

A bracket 21 is attached to a portion of the main rope 5 between the hoisting machine 2 and the car side turning wheel 3. A winch 22 as a traction means is provided between the hoist 2 and the bracket 21 which are fixed portions in the pit 1a.
Is attached. Bracket 21 and winch 2
Reference numeral 2 is removed during normal operation, and is carried in and attached when rescuing passengers. The winch 22 may be a manual one or an electric one as long as a power source such as an emergency power source or a battery can be secured.

FIG. 2 is a side view showing an example of the bracket 21 of FIG. 1, and FIG. 3 is a sectional view taken along the line III-III of FIG. The bracket 21 has first and second rope clamp members 23 and 24 for simultaneously holding a plurality of (four in the figure) main ropes 5 and a plurality of sets of bolts and nuts 25 for tightening these. A ring-shaped winch connection portion 23 a for connecting the winch 22 is fixed to the first rope clamp member 23. Here, the bolts and nuts 25 were used for tightening,
A method of clamping the main rope 5 in a short time (with one touch) without using the bolts and nuts 25, for example, a rope lock member (not shown) of a folding lock clamping method may be used.

Next, a passenger rescue method will be described. FIG. 4 is a flowchart illustrating a passenger rescue method according to the first embodiment, and FIG. 5 is an explanatory diagram illustrating a passenger rescue method according to the first embodiment. For example, in the event of an earthquake or the like, the emergency stop device (not shown) malfunctions due to the swing of the car 6, and the car 6 stops emergency between the floors 10a and 10b. When the brake device remains operating, the worker enters the pit portion 1a and attaches the winch 22 to an appropriate position in the pit portion 1a. Further, the bracket 21 is attached to an appropriate height of the main rope 5 (Step S1).

The mounting position of the winch 22 in the pit portion 1a, that is, the fixing portion is not particularly limited as long as it has sufficient strength against the traction force of the winch 22, but FIG.
Shows an example in which the hoist 2 is used. Thereafter, the wire end of the winch 22 is attached to the winch connection portion 23a of the bracket 22 (Step S2). FIG. 5A shows a state after the bracket 21 and the winch 22 are attached.

Thereafter, the winch 22 is activated, the main rope 5 is pulled down via the bracket 21, and the car 6 is raised (step S3). Normally, the safety device of the car 6 is released by raising the car 6 slightly (for example, 30 mm or less). FIG. 5B shows a state where the car 6 is slightly raised and the safety device is released.

Even after the safety device is released, the winch 22 pulls a part of the main rope 5 downward, and the car 6
Is further raised. At this time, the main rope 5 is
Of the sheave 2a. Thereafter, when the car 6 is raised to an appropriate position (floor level) with respect to the floor 10a, the winch 22 is stopped (step S4). FIG. 5C shows a state in which the car 6 is raised to the floor 10a.

From this state, the landing door and the car door are opened (step S5), and the passengers in the car 6 are rescued to the landing.

In such a rescue method, the car 6 is not directly lifted from the upper part of the hoistway 1 but is fixed to the main rope 5 by the bracket 21 and the bracket 21 is pulled down by the winch 22 so that the car 6 is lowered. Since the car 6 is raised indirectly, there is no need to work on the car 6 to move the car 6 to the nearest floor, the work only needs to be performed in the pit section 1a, and the rescue work of passengers becomes easy,
Passengers can be rescued in a shorter time.

Embodiment 2 FIG. Next, FIG. 6 is an explanatory view showing an elevator passenger rescue method according to Embodiment 2 of the present invention. In this example, a car 6 is suspended at one end of a main rope 5 wound around a hoist 2 and a deflecting wheel 31, and a counterweight 8 is suspended at the other end. Basket 6 and counterweight 8
Between them, a balancing rope 32 is suspended. The lower end of the balancing rope 32 is wound around a tension pulley 33 provided in the pit portion 1a.

The bracket 21 is mounted between the tension pulley 33 of the balancing rope 32 and the balancing weight 8. A winch 22 is mounted between the bracket 21 and an appropriate fixing portion in the pit 1a.

In the first embodiment, the bracket 21 attached to the main rope 5 is towed. In the second embodiment, the bracket 21 is attached to the balancing rope 21, and the bracket 21 is towed by the winch 22. Thereby, the counterweight 8 is lowered and the car 6 is raised to the floor level. Other procedures are the same as in the first embodiment.

As described above, it is not necessary to work on the car 6 by pulling a part of the balancing rope 21.
The car 6 can be raised by the work in the pit section 1a, and the rescue work of the passengers becomes easy, and the passengers can be rescued in a shorter time.

Embodiment 3 In the first and second embodiments, the winch 22 is attached to the fixed portion in the pit portion 1a. However, for example, as shown in FIG. The winch 22 may be fixed between the mounting bracket 34 and the bracket 21. Also in this case, the car 6 can be lifted by the work at the landing without getting on the car 6.

Embodiment 4 FIG. In the first to third embodiments, the bracket 21 is attached to the main rope 5 or the balancing rope 32, and the bracket 21 is pulled by the winch 22. For example, as shown in FIG. The winch 22 is provided between the mounting bracket 34 provided and the counterweight 8.
And the counterweight 8 may be pulled downward. Also in this case, the car 6 can be lifted by the work at the landing without getting on the car 6.

Further, in the first to fourth embodiments, the winch 22 is shown as the traction means. However, the present invention is not limited to this. For example, a chain block may be used.

[0033]

As described above, in the elevator rescue method according to the first aspect of the present invention, the bracket is attached to a part of the rope, and the traction means is attached between the bracket and the fixed portion in the hoistway. By lowering the bracket by the towing means, the car is raised via the rope, the safety device is released, and the car is raised to the nearest floor, so on the car to move the car to the nearest floor There is no need to perform any work, and the rescue operation of the passengers becomes easier, and the passengers can be rescued in a shorter time.

In the elevator rescue method according to the second aspect of the present invention, since the bracket is attached to the main rope for suspending the car in the hoistway, the rescue operation of the passenger is facilitated and the passenger can be rescued in a shorter time. Can be.

In the elevator passenger rescue method according to the third aspect of the present invention, since the bracket is attached to the balancing rope suspended between the car and the counterweight, the passenger can be easily rescued, and the passenger can be relieved more easily. Passengers can be rescued in time.

In the elevator rescue method according to the fourth aspect of the present invention, since the fixed portion located in the pit portion of the hoistway is used, the car can be easily raised by working in the pit portion.

In the elevator rescue method according to the fifth aspect of the present invention, since the hoisting machine installed in the pit portion is used as a fixing portion, the towing means can be more easily fixed in the pit portion.

In the elevator passenger rescue method according to the sixth aspect of the present invention, since the mounting bracket as a fixing portion is fixed to the wall of the hoistway, the car can be pulled up by work at the landing.

According to a seventh aspect of the present invention, there is provided an elevator passenger rescue method, wherein a traction means is attached between a counterweight and a fixed portion in a hoistway, and the counterweight is lowered by the traction means so that the main rope is used. Raising the car, releasing the safety gear, and raising the car to the nearest floor, in order to move the car to the nearest floor,
There is no need to work on the car, and the rescue operation of the passengers becomes easier, and the passengers can be rescued in a shorter time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an elevator passenger rescue method according to Embodiment 1 of the present invention.

FIG. 2 is a side view showing an example of the bracket of FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a flowchart illustrating a passenger rescue method according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a passenger rescue method according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an elevator passenger rescue method according to Embodiment 2 of the present invention.

FIG. 7 is an explanatory diagram showing an elevator passenger rescue method according to Embodiment 3 of the present invention.

FIG. 8 is an explanatory view showing an elevator passenger rescue method according to Embodiment 4 of the present invention.

FIG. 9 is an explanatory diagram for explaining an example of a conventional elevator rescue method.

[Explanation of symbols]

1 hoistway, 1a pit section, 2 hoisting machines, 5 main ropes, 6 cars, 8 counterweights, 21 brackets, 22
Winches (traction means), 32 balancing ropes, 34 mounting hardware.

Claims (7)

[Claims] An elevator passenger rescue method for rescuing passengers in a car by raising a car to a nearest floor from a state in which a brake device and an emergency stop device of a hoist are operated, comprising connecting to the car. Attaching a bracket to a part of the rope being attached, attaching a traction means between the bracket and a fixed portion in the hoistway, pulling down the bracket by the traction means, and raising the car through the rope A method for rescuing an elevator passenger, comprising: releasing the safety device; and further lowering the bracket by the traction means to raise the car to the nearest floor. 2. The rope to which the bracket is attached,
The elevator rescue method according to claim 1, wherein the elevator is a main rope that suspends the car in the hoistway. 3. The rope to which the bracket is attached,
2. The elevator rescue method according to claim 1, wherein a balancing rope is suspended between the car and the balancing weight. 4. The method according to claim 1, wherein the fixed portion is located in a pit portion of the hoistway. 5. The elevator rescue method according to claim 4, wherein the fixed portion is a hoist installed in a pit portion. 6. The fixing device according to claim 1, wherein the fixing portion is a mounting bracket fixed to a wall of the hoistway.
The passenger rescue method for an elevator according to any one of the above. 7. A method for rescuing an elevator passenger, wherein the elevator is lifted to a nearest floor from a state in which a brake device and an emergency stop device of the hoist are operated to rescue the passengers in the elevator car. Attaching the traction means to the fixed part in the hoistway, lowering the counterweight by the traction means, and raising the car through a main rope suspending the car and the counterweight. Removing the emergency stop device; and further lowering the counterweight by the towing means, and raising the car to the nearest floor.