JP5082441B2 - Elevator passenger rescue device - Google Patents

Description

  The present invention relates to a passenger rescue device used when a passenger trapped in an elevator car is rescued.

  If the elevator car stops in the hoistway for any reason, the passenger cannot get out of the car and a so-called confinement occurs. In such a case, an elevator maintenance worker who receives a report from a passenger in the car, when arriving at the confined elevator, normally releases the elevator hoisting machine's brake device to force the car and the counterweight. The car is driven to the landing on the nearest floor using the difference in weight of the car to rescue passengers in the car.

  However, if the weight of the car and the weight of the counterweight are balanced, the car cannot be raised or lowered even if the maintenance staff forcibly releases the brake device. In such a case, conventionally, a rescue weight is newly attached to the governor rope to cancel the equilibrium state of the car and the counterweight, that is, the weight acting on the main rope cage side and the weight acting on the counterweight side. And the brake device is then released to allow the car to travel to the landing on the nearest floor (see, for example, Patent Document 1).

  As another method, for example, as shown in FIG. 3, by newly attaching a rescue weight 18 to the main rope 3, the car 1 side and the counterweight that act on the main rope 3 (not shown in FIG. 3). The car 1 was driven to the landing on the nearest floor with the brake device opened.

JP 2002-338162 A

  In order to rescue passengers in the car, including those described in Patent Document 1, when the confinement occurs in the elevator, it is necessary for the car to start moving until the car arrives at the landing on the nearest floor. Therefore, it was necessary to replace the rescue weight of a predetermined weight with a governor rope many times. For this reason, as the weight of the rescue weight to be attached increases, the workability deteriorates, and there has been a problem that a great deal of time and labor is required for rescue.

  The present invention has been made to solve the above-described problems, and its purpose is to provide a passenger in a car when the passenger is confined in the elevator car and the car and the counterweight are in equilibrium. It is to provide an elevator passenger rescue device that can reduce the rescue work and shorten the rescue time.

An elevator passenger rescue device according to the present invention is an elevator equipped with a car and a counterweight that are suspended on a main rope of the elevator and move up and down in the hoistway, and a long object that moves up and down in conjunction with the car. When the cage and the counterweight are in a balanced state, the support attached to the long object, the winding means provided on the support, and one end of the device provided on the fixed body of the road, and rescue rope wound around the intermediate portion wrapping unit, a supporting portion provided on the other end of the rescue rope by Rukoto is supported by the supporting portion, an elongated The rescue weight attached to the object by 2: 1 roping and the guide rail provided at one end of the support, which guides the cage or counterweight, guides the vertical movement of the rescue weight. , One guide portion for restraining the horizontal displacement of the rescue sinker includes a support portion, the other end portion side is arranged on the side of the guide rail, in which the rescue rope is connected to the other end is there.

In the elevator passenger rescue device according to the present invention, when the passenger is confined in the elevator car and the car and the counterweight are in an equilibrium state, the rescue operation of the passenger in the car can be reduced, and the rescue time can be reduced. Can be shortened.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is an overall configuration diagram showing an elevator passenger rescue apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a car that moves up and down in an elevator hoistway, 2 denotes a counterweight that moves up and down in the hoistway in the opposite direction to the car 1, and 3 denotes a main suspension of a car 1 and a counterweight 2 in a fishing bottle type. It is a rope. FIG. 1 shows a case where the car 1 and the counterweight 2 are suspended by a 2: 1 roping method. Reference numeral 4 denotes a drive sheave for an elevator hoisting machine in which a part of the main rope 3 is wound and the car 1 is moved up and down by moving the main rope 3 by rotation. The counterweight 2 is substantially equal to the weight of the car 1 when half of the passengers get on the car 1 in order to reduce the load on the hoisting machine necessary for raising and lowering the car 1. , Its weight is set.

  Further, 5 is a sheave of a governor provided at the upper part of the hoistway, 6 is a swinging wheel that is rotatably provided at the lower part of the hoistway and is biased downward, and 7 is a sheave 5 and a tensioner. An endless governor rope 8 wound around a tension wheel 6 and applied with a predetermined tension by a tension wheel 6 is connected between the car 1 and the governor rope 7, and the governor rope 7 is connected to the car 1. It is an arm that is interlocked with the lifting and lowering operation.

  Further, in FIG. 1, confinement occurs in the elevator, and the car 1 and the counterweight 2 are in an equilibrium state. Therefore, even if the hoisting machine brake device (not shown) is forcibly released, the car 1 is The case where neither ascending nor descending is shown. In such a case, an elevator maintenance worker or the like who has received a report from a passenger in the car 1 first enters the hoistway pit, and the governor rope 7, main rope 3, balancing rope (not shown), etc. A passenger rescue device described later is attached to ropes and chains that move up and down in conjunction with the car 1. And, by operating the passenger rescue device attached to a long object such as the rope or chains, the weight acting on the car 1 side of the main rope 3 and the weight acting on the counterweight 2 side are unbalanced. And move the car 1 to the nearest floor.

  Here, in the passenger rescue device, when the car 1 and the counterweight 2 are confined in an equilibrium state, a long object such as a rope or chain that moves up and down in conjunction with the car 1, for example, a governor A support 9 attached to the rope 7, winding means comprising a pulley 10 rotatably provided on the support 9, one end portion is provided on a pit portion fixing body of the hoistway, and an intermediate portion is provided on the pulley 10. A rescue rope composed of a wire rope 11 wound around and a rescue weight 12 attached to the governor rope 7 by 2: 1 roping by being provided at the other end of the wire rope 11 are provided. It has been.

  When the passenger rescue device is attached when confinement occurs, the maintenance staff first enters the pit portion of the hoistway and fixes one end of the wire rope 11 to the pit portion fixing body. Moreover, the maintenance staff attaches the support body 9 to a position as high as possible of the governor rope 7 and fixes the pulley 10 to the governor rope 7 so as to be rotatable. Thereafter, an intermediate portion of the wire rope 11 is wound around the pulley 10 and a rescue weight 12 is attached to the other end portion of the wire rope 11, and the speed governor rope 7 is fixed to the speed governor rope 7 via the pulley 10 (and the support body 9). Apply the load.

  According to Embodiment 1 of the present invention, the rescue weight 12 is attached to the governor rope 7 by 2: 1 roping. For this reason, a load twice the mass of the rescue weight 12 acts on the governor rope 7 via the pulley 10 and the support 9. For this reason, the weight required for the rescue weight 12 is ½ of the weight required to cancel the equilibrium state between the car 1 and the counterweight 2, and the rescue operation of the passenger can be greatly reduced. Also, by reducing rescue work. The rescue time is also greatly reduced. Worm gear with poor gear efficiency is used for the hoisting machine, and when the weight required to cancel the equilibrium state between the car 1 and the counterweight 2 is large, or the car 1 stops in the express zone and reaches the nearest floor This is a particularly effective means when the distance is long. Moreover, since the weight required for the rescue weight 12 can be small, it is possible to reduce the price of the passenger rescue device and improve the transportability.

Embodiment 2. FIG.
FIG. 2 is a detail view of a main part showing an elevator passenger rescue apparatus according to Embodiment 2 of the present invention. In FIG. 2, 13 a to 13 c are divided into a plurality of parts, and provided at the other end of the wire rope 11, a rescue weight attached to the governor rope 7 by 2: 1 roping, and 14 a rescue This is a guide device for guiding the vertical movement of the weights 13a to 13c. Here, the guide device 14 is provided at the other end portion of the wire rope 11 and is provided at a support portion 14a that supports the rescue weights 13a to 13c, and an end portion of the support portion 14a, and a guide rail in the hoistway. 15 and a guide portion 14b that restrains the horizontal displacement of the rescue weights 13a to 13c.

  Such a guide device 14 can prevent rolling of the rescue weights 13a to 13c during the rescue operation of the passenger, and can prevent deterioration of workability. Further, since the horizontal displacement of the rescue weights 13a to 13c is restricted within a predetermined range, even when the rescue weights 13a to 13c are lowered, the rescue weights 13a to 13c are in the hoistway equipment, For example, a secondary disaster that collides with the tension vehicle 6 can be prevented. The guide rail 15 with which the guide portion 14b is engaged may be for the car 1 or the counterweight 2. However, by using the existing guide rail 15, the structure of the hoistway pit portion can be simplified. Can be realized.

  In FIG. 2, the winding means is constituted by, for example, a steel pipe 16 fixed to the support 9. In such a case, when the rescue weights 13 a to 13 c are lowered, the wire rope 11 moves so as to slide on the outer peripheral surface of the steel pipe 16. By employ | adopting such a structure, compared with the case where the pulley 10 is used, a structure can be simplified.

  Moreover, the one end part of the wire rope 11 is connected with the shock absorber stand 17 provided between a pair of guide rails 15 via the attachment hole 17a, for example. In this case, if a hook or the like is connected to one end portion of the wire rope 11 and the one end portion of the wire rope 11 is fixed to the shock absorber base 17 by hooking the hook to the attachment hole 17a, workability is improved. Moreover, when fixing the one end part of the wire rope 11 to the buffer stand 17, even if it uses a wire clip etc., it is possible to show the same effect as the above.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram which shows the passenger rescue apparatus of the elevator in Embodiment 1 of this invention. It is principal part detail drawing which shows the passenger rescue apparatus of the elevator in Embodiment 2 of this invention. It is a whole block diagram which shows the passenger rescue apparatus of the conventional elevator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Counterweight 3 Main rope 4 Drive sheave 5 Sheave 6 Tension wheel 7 Speed governor rope 8 Arm 9 Support body 10 Pulley 11 Wire rope 12 Rescue weight 13a, 13b, 13c Rescue weight 14 Guide device 14a Support Part 14b Guide part 15 Guide rail 16 Steel pipe 17 Shock absorber stand 17a Mounting hole 18 Rescue weight

Claims (2)

A car and a counterweight suspended on the main rope of the elevator and moving up and down in the hoistway;
A long object that moves up and down in conjunction with the car;
A device for rescue passengers in an elevator equipped with
A support attached to the elongate object when confinement occurs in an equilibrium state of the car and the counterweight; and
Winding means provided on the support;
A rescue rope having one end portion provided on a fixed body of the hoistway and an intermediate portion wound around the winding means;
A support provided at the other end of the rescue rope ;
The Rukoto is supported by the support portion, 2 with respect to the long product: the rescue sinker attached in 1 roping,
It is provided at one end of the support portion, and engages with a guide rail that guides the car or the counterweight, thereby guiding the vertical movement of the rescue weight, and the horizontal displacement of the rescue weight. A guide part to restrain;
Equipped with a,
An elevator passenger rescue device in which the other end of the support portion is disposed on the side of the guide rail and the rescue rope is connected to the other end side . The elevator passenger rescue device according to claim 1 , wherein the winding means is made of a steel pipe fixed to the support.

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