JP3595525B2 - Elevator anti-sway device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an elevator anti-sway device.
[0002]
[Prior art]
In a general elevator, a car is suspended by a rope, and the rope is shifted by a drive unit including a drive motor, a sheave, and a brake, and the car is raised and lowered.
Conventionally, since a brake is mounted on the drive unit, a braking force is transmitted via a rope when the car is stopped.
In an emergency, the car was suddenly stopped by an emergency brake attached to the car.
[0003]
[Problems to be solved by the invention]
By the way, as a building becomes higher in height, a rope for hanging a car becomes longer. As a result, the influence of the expansion and contraction of the rope due to the load fluctuation at the time of getting on and off the car increases, and the car swings up and down, giving a passenger discomfort.
In addition, since the emergency brake has a structure to be operated in the event of an abnormal situation, once it is operated, there is a problem that the recovery is not easy, and it is not suitable for regular use.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem and to make it possible to use an elevator comfortably without causing a vertical swing even if the length of the rope of the elevator is increased. It is another object of the present invention to provide an anti-sway device that can smoothly perform a frequent operation of stopping the up and down movement each time the car stops.
[0005]
[Means for Solving the Problems]
The elevator anti-swing device according to the present invention secures the guide rail to the elevator car, which guides the car suspended by the ropes to the left and right guide rails of the hoistway and lifts and lowers the guide rail. And a pair of left and right lashing devices , and a single electromagnetic drive device, which is operated by an electromagnetic force, provided on the car, and two flexible push-pull wires.
[0006]
And, the lashing device has a pair of arms which friction material is attached in contact separation relative to the guide rail on the front end side, a base end of the arm, and an electromagnetic driving device, the above Pusshupuruwa ear And interlocked to transmit the driving force of the electromagnetic drive.
[0007]
Further, the base end side of the arm crosses in an X-shape, a middle part of the arm is pivotally supported by a fixed member on a support shaft, and the base end of the arm is connected to the base end of the arm. A spring that urges the leg in the direction to open the leg is attached.
[0008]
Further, when the car is stopped at the stop floor, the friction material presses the guide rail when the electromagnetic drive device is energized when the car stops on the stop floor, and when the electromagnetic drive device is not energized when the car is moved up and down, the friction material uses the spring. It is configured to be separated from the guide rail by an elastic force .
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will now be described with reference to certain exemplary embodiments illustrated.
[0010]
In FIG. 1, an example of a schematic configuration of the entire elevator is shown, 1 indicates a car suspended by a (wire) rope 2 or the like, and pulleys 4, 5 and a car 1 on an upper side of an elevator hoistway 3 are shown. The car 1 is moved up and down by the lifting means A including the pulleys 6 and 7 on the side, the traction pulley 8 on the lower side, and the pulley 10 having the counterweight 9, and the car 1 can be stopped at each floor of the building.
[0011]
The traction pulley 8 is driven by a drive unit U, which includes a drive motor and a brake. In addition, the arrangement of the pulleys 4, 5, 6, 7, 10 and the pulley 8 as the constant pulley and the moving pulley can be variously modified other than those shown in FIG. It can be freely set at the middle or upper part of the hoistway 3.
[0012]
Incidentally, in the simplified plan explanatory view of FIG. 2, reference numerals 11 and 11 denote a pair of left and right guide rails (although omitted in FIG. 1) along the left and right inner wall surfaces 3a and 3a of the hoistway 3 in the vertical direction. It is fixed. The guide rails 11 are for guiding the car 1 up and down, and are provided with guided grooves (not shown) on the left and right outer wall surfaces of the car 1 so that the guide rails 11 are fitted and guided to guide the car up and down. A friction material of an emergency stop brake (not shown) is a member for holding (stopping) the car 1 in an emergency (emergency) by gripping and holding the guide rail 11.
[0013]
The anti-sway device S according to the present invention includes a pair of left and right lashing devices 12, 12 that diverge the guide rails 11, 11 to lash them to the guide rails 11 so as to be freely opened. That is, a pair of lashing devices 12, 12 are attached to the car 1 side.
[0014]
Next, reference numeral 13 denotes a single electromagnetic drive device provided on the car 1 side. The electromagnetic drive device 13 operated by electromagnetic force and the pair of securing devices 12, 12 are connected to the push-pull wires 14, 14. And linked together.
[0015]
For example, as the electromagnetic driving device 13, an electromagnetic thruster 15 in which the rod 16 operates in the projecting direction B when energized, a horizontal member 17 fixed to the rod 16 of the thruster 15, and a fixed casing of the thruster 15 are fixed. And a fixed mounting member 18.
On the other hand, the lashing device 12 is composed of a pair of arms 21, 21 pivotally supported by a support shaft 20 on a halfway portion of the fixing member 19, and a friction material 22 attached to the tip side (inside) of the arm 21. And so on.
The fixing member 19 is fixed to a part of the car 1. The friction materials (brake shoes) 22 and 22 are opposed to both side surfaces of the guide rail 11 so as to be able to contact and separate.
[0016]
The base ends of the pair of arms 21, 21 intersect in an X shape, and are configured to transmit the driving force of the electromagnetic drive device 13 to the base ends of the arms 21, 21 via the push-pull wire 14. I have. That is, the base ends of the pair of arms 21 and 21 are connected to the push-pull wire 14 to transmit the force in the protruding direction (indicated by the arrow B) by the electromagnetic drive device 13 and cause the friction members 22 and 22 to move. The guide rail is configured to be pressed (contacted).
[0017]
More specifically, a spring 23 that elastically urges the base ends of the arms 21 and 21 crossed in an X-shape in a direction in which the arms 21 are opened, and the base end of one arm 21 The movable wire 14a of the push-pull wire 14 is connected (locked), and the outer end 14b of the push-pull wire 14 is attached to the base end of the other arm 21. At the other end of the push-pull wire 14, the movable wire 14a is connected (locked) to the horizontal member 17 of the electromagnetic driving device 13, and the outer tube portion 14b is attached to the attachment member 18.
[0018]
With this configuration, when the car 1 stops at the stop floor, power is supplied, and when the electromagnetic drive device 13 is supplied with power, the rod 16 and the horizontal member 17 linearly move in the projecting direction indicated by the arrow B. Then, the movable wire 14a inside the push-pull wire 14 is pulled, and the base ends of the arms 21, 21 crossed in an X shape are operated in the closing direction, and the distal ends of the arms 21, 21 and the friction materials 22, 22 are strongly guided. By pressing both side surfaces of the rail 11, a braking force is exerted to suppress the vertical movement of the elevator car 1.
[0019]
On the other hand, when the electromagnetic drive device 13 is not energized, the respective members operate in reverse, and the friction members 22, 22 are surely moved from the guide rail 11 (especially by the action of the elastic biasing force of the spring 23). To separate. As a result, the resistance of the car 1 to travel up and down does not become a resistance.
[0020]
Since the friction members 22, 22 and the guide rail 11 are normally open in this way, there is an advantage that sliding contact is caused when the car 1 moves up and down, thereby preventing problems due to frictional resistance and frictional heat.
[0021]
According to the above-described embodiment of the present invention, since the flexible push-pull wire (cable) 14 is used, the anti-sway device according to the present invention can be easily provided even in a small space. In addition, the driving force of the single electromagnetic drive device 13 can be transmitted to the pair of lashing devices 12, 12, and the structure can be simplified.
In addition, since the existing guide rail 11 can be used, the structure can be further simplified, and the installation cost can be reduced.
[0022]
【The invention's effect】
(According to claim 1) Even in a high-rise building elevator, the vertical swing of the car can be easily suppressed. In addition, frequent ON-OFF operations can be freely performed, and the practical effect is remarkable.
[0023]
The of et, since using a push-pull wire 14 with a flexible, it can be simplified in structure, and is easy to also added to existing elevators, or even in a narrow space, attached it can.
[0024]
In addition, compactness can be achieved, and a structure with high durability and safety can be easily obtained. In addition, since the existing guide rail 11 can be used, the structure can be further simplified, and the installation cost can be reduced.
[Brief description of the drawings]
FIG. 1 is an overall simplified explanatory diagram showing an embodiment of the present invention.
FIG. 2 is a plan view showing a configuration of a main part.
[Explanation of symbols]
1 basket 2 rope (wire rope)
3 hoistway
11 Guide rail
12 lashing device
13 Electromagnetic drive
14 Push-pull wire
19 Fixing member
20 spindles
21 arm
22 Friction material
23 spring

Claims (1)

To the car 1 of an elevator for elevating and the car 1 which is suspended by the rope 2 is guided by the left and right guide rails 11 of the elevator path 3, the pair of lashing the guide rail 11 freely lashing open solid Attached with the binding device 12, and having a single electromagnetic drive device 13 that is operated by the electromagnetic force provided in the car 1 and two flexible push-pull wires 14 ,
The lashing device 12 has a pair of arms 21 , 21 provided with a friction material 22 attached to and separated from the guide rail 11 on the distal end side , and a base end of the arms 21 , 21 and an electromagnetic drive device. And 13 are interlockingly connected by the above-mentioned push-pull wire 14 to transmit the driving force by the electromagnetic driving device 13 ,
Further, the base ends of the arms 21 , 21 intersect in an X-shape, and a middle part of the arm 21 is pivotally supported by a fixing member 19 on a support shaft 20 , and the base ends of the arms 21 , 21 are pivoted. A spring 23 for elastically biasing the base ends of the arms 21 and 21 in a direction in which the legs are mutually opened .
During energization of the electromagnetic drive device 13 when the car 1 is stopped at stop floor, the friction member 22 presses the guide rail 11, when electric power is applied to the electromagnetic drive unit 13 during lifting of the car 1, the friction material An elevator swing-stop device, wherein the spring 22 is configured to be separated from the guide rail 11 by the elastic biasing force of the spring 23 .

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