JP2000169055A - Passenger rescue method of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rescue a passenger by safely moving an elevator car to the nearest floor in the case when it is impossible to rescue the passenger as a drive device cannot be driven and the elevator car does not move even when a brake is released as the elevator car and a balance weight are balanced in weight. SOLUTION: A passenger 33 is rescued by lowering an elevator car down to the nearest rescue floor 15 by placing a weight 34 on a ceiling 2a of the elevator car 2 and increasing weight on the side of the elevator car 2 in a state where a drive device 3 cannot be driven on an elevator to elevator the elevator car and the balance weight in a well bucket type through a suspension rope 6 by reciprocally rotating and driving a sheave 5 by the drive device 3 by wending the suspension rope 6 to suspend the elevator car 2 and the balance weight 4 on the sheave 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for rescuing an elevator passenger when a driving device cannot operate.

[0002]

2. Description of the Related Art In recent years, elevators having a hoisting mechanism installed in a gap between a car and a hoistway wall have been developed in order to eliminate a machine room of a rope type elevator provided at the top of the hoistway due to the problem of sunshine. Have been. As an example thereof, one described in Japanese Patent No. 2593288 (traction sheave elevator) is known, and the configuration is shown in FIGS. 13 and 14.

In this conventional traction sheave elevator, a hoisting mechanism is installed in a gap between the hoistway wall at the top of the hoistway 1 and the projection surface of the car 2. A traction sheave 5 is provided at the top of the hoistway 1, having a motor as a driving device 3, a car 2 on one end of a suspension rope 6 wound around the traction sheave 5, and a counterweight 4 on the other end.
The traction sheave 5 is driven by the electric motor 3 to transmit the driving force to the suspension rope by friction between the suspension rope 6 and the traction sheave 5, and the car 2 and the counterweight 4 are suspended. Move up and down the formula.

In the case of this structure, the drive unit 3 is disposed in an empty space of the hoistway 1, thereby eliminating the need for a conventional machine room.

As a method of arranging the driving device 3 in an empty space of the hoistway 1, the driving device 3 is mounted on the upper end portions of the car guide rails 10a and 10b.
In order to arrange the driving device 3 in an empty space of the hoistway 1, the suspension rope 6 is made to pass through the turning pulleys 11 a to 11 c. This arrangement eliminates the need for a conventional machine room.

In such a conventional elevator, when the driving device 3 cannot be operated due to a power failure or failure, the brake 21 of the driving device 3 is released by the battery 12 or the manual release operation lever 20, and the car 2 or fishing The heavier one of the weights 4 naturally moves downward to bring the car 2 closer to the nearest floor entrance 15,
A method of rescuing passengers from the entrance 16 of the car 2 is adopted.

[0007]

However, according to such a conventional elevator passenger rescue method, in order to move the car 2, the counterweight 4 and the counterweight 4 are required.
Since the difference in weight is required between the car and the side, if the weight of the car 2 and the weight of the counterweight 4 are balanced, the car 2 does not move even if the brake 21 is released.
There was a problem that the passengers could not be rescued.

The present invention has been made to solve such a conventional problem. In an elevator without a machine room, passengers can be safely and safely protected even in a situation in which rescue operation cannot be performed only by releasing a brake. It is an object of the present invention to provide an elevator passenger rescue method that can be reliably rescued.

[0009]

According to a first aspect of the present invention, there is provided an elevator passenger rescue method, wherein a hanging rope for suspending a car and a counterweight is wound around a sheave, and the sheave is driven by a driving device in a forward / reverse rotation. By doing so, in the elevator in which the car and the counterweight are lifted up and down in a hanging manner via the hanging rope, and when the driving device cannot be operated, a weight is placed on the ceiling of the car. And lower the car to the nearest rescue floor.

According to a second aspect of the present invention, there is provided the elevator rescue method according to the first aspect, wherein the rope-shaped article is provided in a situation where the distance between the ceiling of the car and the elevator entrance located above the car is large. And placing the weight on the ceiling of the car.

According to a third aspect of the present invention, there is provided an elevator passenger rescue method according to the first or second aspect, wherein a sand bag is used as the weight.

According to a fourth aspect of the present invention, there is provided an elevator passenger rescue method according to the first or second aspect, wherein a water tank is used as the weight.

According to a fifth aspect of the present invention, there is provided an elevator passenger rescue method according to the first or second aspect, wherein a chain is used as the weight.

According to a sixth aspect of the present invention, there is provided an elevator passenger rescue method according to the second aspect, wherein a weight having a step is provided at a portion where the rope-shaped article is applied.

According to a seventh aspect of the present invention, there is provided an elevator passenger rescue method, wherein a suspension rope for suspending a car and a counterweight is wound around a sheave, and the sheave is driven to rotate forward and reverse by a driving device. In the elevator in which the car and the counterweight are lifted up and down in a hanging manner via a rope, if the driving device cannot be operated, suspend the weight at the bottom of the car and move the car to the nearest It descends to the rescue floor.

According to a eighth aspect of the present invention, there is provided an elevator passenger rescue method, wherein a suspension rope for suspending a car and a counterweight is wrapped around a sheave, and the sheave is driven by a driving device in forward and reverse rotations. In an elevator that raises and lowers the car and the counterweight in a hanging manner via a rope, if it becomes impossible to operate the drive device, between the bottom of the car and the bottom of the counterweight A weight is suspended at a position where a load is applied to the car side of the suspended rope, and the car is lowered to the nearest rescue floor.

According to a ninth aspect of the present invention, in the elevator rescue method according to the eighth aspect, a position where a load is applied to the car side of the rope suspended between the bottom of the car and the bottom of the counterweight. The weight is hooked on one of the hooks provided at a plurality of locations.

According to a tenth aspect of the present invention, in the elevator rescue method according to the eighth aspect, a chain is suspended between the bottom of the car and the bottom of the counterweight in place of the rope. .

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show the configuration of the first embodiment of the present invention. In the first embodiment, the same components as those in the conventional example shown in FIGS. 13 and 14 are denoted by the same reference numerals.

In the elevator rescue method of the first embodiment, the rescue worker 31 usually uses the intercom 32 to rescue the passengers in the car 2 when the driving device 3 cannot be driven due to a power failure or failure. After contacting the passenger 33 to confirm the number of passengers, the brake 21 is intermittently released using the brake release lever 20, and the car 2 is moved to the entrance 15 on the nearest floor, and then the passenger 33 is rescued.

However, when the driving device 3 cannot be operated and the car 2 and the counterweight 4 cannot be moved in any of the upper and lower directions due to the weight balance, FIG. As shown, the rescue worker 31 places the weight 34 on the ceiling 2a of the car 2 and
Then, the brake 21 is intermittently released, and the passenger car 33 is rescued after the car 2 is moved to the nearest floor entrance 15 as shown in FIG.

According to the elevator rescue method of the first embodiment, when the driving device cannot be operated and the car and the counterweight are weight-balanced and do not move, the weight is moved to the car. The passenger can be rescued by placing the vehicle on the ceiling to increase the weight on the car side, and gradually releasing the car to the nearest floor entrance by releasing the brake intermittently.

Next, an elevator passenger rescue method according to a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, when the driving device 3 cannot operate due to a failure, the car 2 and the counterweight 4 are weight-balanced, and the worker 31 is moved from the doorway above the car 2. Is a rescue method when the weight 34 cannot be placed directly on the ceiling 2a.

In this case, the rescue worker 31 suspends the weight 34 with the rope 35 from the upper entrance, gradually lowers the weight 34 on the ceiling 2a of the car 2 and places it thereon.
Increase side weight.

Then, the brake 21 is intermittently released by operating the brake release lever 20, and the car 2 is gradually lowered to rescue the passenger 33 at the nearest floor entrance 15.

According to the elevator passenger rescue method of the second embodiment, even if the distance between the car ceiling 2a and the entrance located above the car 2 is large, the weight 34 can be safely attached to the car ceiling 2a. To rescue passengers smoothly.

Next, a third embodiment of the present invention will be described with reference to FIG. The elevator rescue method according to the third embodiment uses a sand bag 36 instead of the weight 34 used in each of the first embodiment shown in FIG. 1 and the second embodiment shown in FIG. It is characterized by using.

According to the elevator passenger rescue method of the third embodiment, when the sand bag 36 is used as the weight, the sand bag is flexible when the sand bag is placed on the car ceiling 2a because the sand bag is flexible. There is no danger of hurting. Further, even if the user hangs the rope 35 to the car ceiling 2a and accidentally hits it with any member in the hoistway 1, there is no risk of damaging the member, and the work can be performed more safely.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The feature of the elevator rescue method of the fourth embodiment is that a water tank 38 is used instead of the weight 34 used in each of the first and second embodiments.

First, an empty water tank 38 is set on the car ceiling 2a, and then water 40 is poured into the water tank 38 using a hose 39. As a result, the poured water 40
, The weight of the car 2 is increased, and the heavier car 2 can be lowered by intermittently releasing the brake 21. Then, the car 2 is lowered to the nearest floor entrance 15 and the passengers 33 in the car are lowered.
To rescue.

According to the elevator rescue method of the fourth embodiment, the work can be performed without damaging the car ceiling 2a, and the worker 31 does not handle heavy objects. The work can be performed more safely for both the passenger 31 and the passenger 33.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The feature of the elevator rescue method of the fifth embodiment is that a chain 41 is used instead of the weight 34 used in each of the first and second embodiments. In order to freely deform the chain 41, a projection 2b is provided on the car ceiling 2a in advance.

When rescuing passengers, the worker 31
Takes the chain 41 from the entrance above the car 2 to the car ceiling 2a
Lower it little by little. And a suitable amount of chain 41
When the car 2 is lowered onto the car ceiling 2a, the weight of the car 2 increases due to the entire load, and the heavier car 2 side is gradually lowered to the nearest floor entrance 15 by opening the brake 21 intermittently. Rescue the passenger 33.

In this case, since the weight per unit length of the chain 41 is not so large, the weight that the operator 31 must support is small, regardless of the load of the entire chain 41 on the car 2, and the operator 31 And the passenger 33 can safely perform the work. Also, by mistake chain 4
Even when 1 is dropped on the car ceiling 2a, the load is dispersed due to the characteristics of the chain 41, so that the car ceiling 2a and other components are less likely to be broken.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. In the elevator rescue method of the sixth embodiment, the weight 43 placed on the ceiling 2a of the car 2 is shaped as shown in FIG. Through
The operator 31 gradually lowers the weight 43 by holding both ends of the rope 44 from the upper entrance and puts it on the car ceiling 2a to increase the weight of the car 2. Then, by releasing the brake 21 intermittently, the car 2 is lowered to the nearest floor entrance 15 to rescue the passenger 33.

In the case of the sixth embodiment, when the rescue work is completed and the weight 43 needs to be collected, the rope 44
Without being caught between the weight 43 and the car ceiling 2a,
The lifting of the weight 43 by the rope 44 can be performed smoothly.

Next, a seventh embodiment of the present invention will be described with reference to FIG. According to the elevator rescue method of the seventh embodiment, a suspension ring 45 is attached to the bottom of the car 2 in advance, and in rescue work, the worker 31 removes the weight 46 from the entrance 15 below the car 2. Hook 46
a, the weight of the car 2 is increased by hooking it on the suspension ring 45, and then the brake 21 is intermittently released to lower the car 2 to the nearest floor entrance 15 to rescue the passengers 33. I do.

According to the seventh embodiment, the weight 46
Is hung from the lower side to the bottom of the car 2, so there is no danger that the weight will fall during the work and damage the car 2.

Next, an eighth embodiment of the present invention will be described with reference to FIG.
It will be described based on. An elevator passenger rescue method according to the eighth embodiment includes connecting a rope 51 between the bottom of the car 2 and the bottom of the counterweight 4, and applying a load to the car 2 side of the rope 51, A weight or a weight 50 such as a sand bag is attached from the entrance below the car 2 to increase the weight of the car 2. And brake 2
By intermittently opening 1, the car 2 is gradually lowered to the nearest floor entrance 15 to rescue the passengers 33.

According to the elevator rescue method of the eighth embodiment, the weight 50 is attached to the rope 51 below the car 2 as in the seventh embodiment. There is no danger that the car 2 will be damaged by this.

Next, a ninth embodiment of the present invention will be described with reference to FIG.
It will be described based on. In the elevator rescue method according to the ninth embodiment, hooks 5 are provided at a plurality of places on a rope 51 suspended from a lower side of the car 2 to a lower side of the counterweight 4.
In carrying out the rescue work, the weight of the car 2 is increased by hooking the weight 53 from one of the entrances below the car 2 to one of the hooks 52 easily accessible by the worker 31. Thereafter, the car 2 is gradually lowered by intermittently releasing the brake 21 to rescue the passengers 33 at the nearest floor entrance 15.

According to the elevator rescue method of the ninth embodiment, the weight 53 only needs to be hooked to the hook 52 at a position where the worker 31 can easily get hooked from the entrance below the car 2. , The rescue operation can be easily performed.

Next, a tenth embodiment of the present invention will be described with reference to FIG.
2 will be described. The elevator rescue method of the tenth embodiment replaces the rope 51 suspended between the lower side of the car 2 and the lower side of the counterweight 4 in the ninth embodiment shown in FIG. When the chain 60 is suspended and the rescue operation is performed, the weight 61 is hooked by the hook 61a onto the chain ring at a position where the operator 31 can easily reach from the entrance below the car 2 so that After increasing the weight, the car 21 is gradually lowered by intermittently releasing the brake 21 to rescue the passengers 33 at the nearest floor entrance 15.

According to the elevator rescue method of the tenth embodiment, in the case of the chain 60, the weight 61 can be hooked on the chain ring at any position by the hook 61a. The rescue operation can be performed smoothly.

[0045]

As described above, according to the first aspect of the present invention,
The drive cannot be operated due to power failure or failure,
Moreover, even when the weight of the car side and the weight of the counterweight side are equal, the brake is intermittently released,
By lowering the car to the nearest floor entrance,
Passengers can be reliably rescued.

According to the second aspect of the present invention, even when the distance between the car ceiling and the entrance above the car is far, passengers can be reliably rescued.

According to the third, fourth and fifth aspects of the present invention, since the load that must be supported by the operator when installing the weight is small, the rescue operation can be performed more safely. Also,
There is no danger of damaging the car or other members if the weight is accidentally dropped.

According to the sixth aspect of the present invention, the rope used for installing the weight can be reused, and the collecting operation can be performed easily and safely.

According to the seventh aspect of the present invention, even when the driving device cannot be operated due to a power failure or a failure and the weight of the car is equal to the weight of the counterweight, the brake is intermittently operated. By opening the car to the nearest floor entrance, passengers can be reliably rescued. Further, even if the weight is dropped when the weight is installed, the weight does not hit the car, so that the passenger can be safely rescued.

According to the eighth aspect of the present invention, the work can be performed at any position under the car when the weight is installed, and the degree of freedom of the work is large.

According to the ninth and tenth aspects of the present invention, the weight installation work can be facilitated, and as a result, the passenger rescue work can be performed safely and easily.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a weight installation operation in an elevator passenger rescue method according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state where passengers are rescued from the nearest floor entrance by the method for rescuing passengers of the elevator according to the first embodiment.

FIG. 3 is an explanatory diagram showing a weight installation operation using a rope in an elevator passenger rescue method according to a second embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an operation of installing a sand bag as a weight in the elevator passenger rescue method according to the third embodiment of the present invention.

FIG. 5 is an explanatory view showing an operation of using a water tank as a weight and injecting water into the water tank in the elevator rescue method according to the fourth embodiment of the present invention.

FIG. 6 is an explanatory view showing an operation of installing a chain as a weight in an elevator passenger rescue method according to a fifth embodiment of the present invention.

FIG. 7 is an explanatory view showing an operation of installing a weight with a suspension ring by a rope in a method for rescuing a passenger of an elevator according to a sixth embodiment of the present invention.

FIG. 8 is a perspective view showing a weight with a suspension ring used in the above embodiment and a rope passing therethrough.

FIG. 9 is an explanatory diagram showing weight installation work in an elevator passenger rescue method according to a seventh embodiment of the present invention.

FIG. 10 is an explanatory view showing a weight installation operation in an elevator passenger rescue method according to an eighth embodiment of the present invention.

FIG. 11 is an explanatory diagram showing weight installation work in an elevator passenger rescue method according to a ninth embodiment of the present invention.

FIG. 12 is an explanatory diagram showing a weight installation operation in the elevator rescue method of the elevator according to the tenth embodiment of the present invention.

FIG. 13 is a mechanism diagram of a general traction sheave elevator.

FIG. 14 is a plan view of the traction sheave elevator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car 2a Ceiling 2b Projection 3 Drive 4 Balance weight 5 Sheave 6 Suspension rope 15 Nearest entrance / exit 20 Brake release lever 21 Brake 31 Worker 33 Passenger 34 Weight 35 Rope 36 Sand bag 38 Water tank 39 Hose 40 Water 41 Chain 43 Weight 43a Rope loop 43b Step 44 Rope 45 Hanging ring 46 Weight 46a Hook 50 Weight 51 Rope 52 Hook 53 Weight 60 Chain 61 Weight 61a Hook

Claims (10)

[Claims] 1. A hanging rope for suspending a rider and a counterweight is wrapped around a sheave, and the sheave is driven to rotate forward and reverse by a driving device, whereby the rider and the counterweight are driven via the suspension rope. If the elevator cannot be operated in a state where the driving device cannot be operated, a weight is placed on the ceiling of the car and the car is lowered to the nearest rescue floor. How to rescue elevator passengers. 2. In a situation where the distance between the ceiling of the car and the elevator entrance located above the car is large, placing the weight on the ceiling of the car using a rope-shaped article. The method according to claim 1, wherein the passenger is rescued. 3. The method according to claim 1, wherein a sand bag is used as the weight. 4. The elevator rescue method according to claim 1, wherein a water tank is used as the weight. 5. The method according to claim 1, wherein a chain is used as the weight. 6. The method according to claim 2, wherein a weight having a step is provided at a portion where the rope-shaped article is hung. 7. A suspending rope for suspending a rider and a counterweight is wrapped around a sheave, and the sheave is driven forward and reverse by a driving device, whereby the rider and the counterweight are driven through the suspender rope. In the elevator that lifts and lowers in a hanging manner, when it becomes impossible to operate the driving device, an elevator is characterized in that a weight is hung on the bottom of the car and the car is lowered to the nearest rescue floor. Passenger rescue method. 8. A suspending rope for suspending the rider and the counterweight is wrapped around a sheave, and the sheave is driven forward and reverse by a driving device, whereby the rider and the counterweight are driven through the suspender rope. If the elevator is lifted up and down in a hanging manner, and the driving device cannot be operated, a load is applied to the car side of the rope suspended between the bottom of the car and the bottom of the counterweight. An elevator passenger rescue method, wherein a weight is hung at a position to be added and the car is lowered to a nearest rescue floor. 9. The weight suspended at one of a plurality of hooks provided at a plurality of positions of the rope suspended between the bottom of the car and the bottom of the counterweight at a position where a load is applied to the car. The passenger rescue method for an elevator according to claim 8, wherein the passenger is caught. 10. The method according to claim 8, wherein a chain is suspended between the bottom of the car and the bottom of the counterweight using a chain instead of the rope.