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Elevator brake device and elevator equipment equipped therewith

A brake device, elevator technology, applied in the direction of transportation and packaging, elevators, etc.

Inactive Publication Date: 2012-05-02
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned existing braking device, when the power supply to the actuator of the braking device cannot be ensured, in order to move the lifting body, the braking device must be invalidated. The brake piece at the end of the brake section is separated from the guide rail
It is conceivable that, for example, when performing maintenance and other operations, the above-mentioned situation in which the elevator car must be moved in the state where the power supply of the actuator is cut off may occur.

Method used

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  • Elevator brake device and elevator equipment equipped therewith
  • Elevator brake device and elevator equipment equipped therewith
  • Elevator brake device and elevator equipment equipped therewith

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0049] Embodiments of the braking device for an elevator and the elevator equipment according to the present invention will be described below with reference to the drawings.

[0050] Such as figure 1 As shown, the elevator equipment of this embodiment has a hoist as a driving device installed in the machine room 1, and the sheave 2 installed on the hoist and the diverting pulley 9 that keeps the elevator car 4 and the counterweight 5 at a predetermined distance are rolled up. Sling 3 is wound around. The lifting body lifting in the lifting passage 6, that is, the elevator car 4 and the counterweight 5 are connected to the two ends of the sling 3 respectively. The elevator car 4 ascends and descends in the hoisting passage 6 under the guidance of the elevator car side guide rail 7, and the counterweight 5 ascends and descends in the hoisting passage 6 under the guidance of the counterweight side guide rail 8. By rotating the sheave 2 of the winch, the The elevator car 4 and ...

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PUM

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Abstract

The invention provides an elevator brake device and elevator equipment equipped therewith. The elevator brake device (10) is arranged on an elevating body and comprises acting arms (14), an acting brake part (17), a spring (15), an actuator (16) and a braking member. The acting arms are arranged mutually opposite to each other in pairs and can be rotated with a shaft as the fulcrum thereof. The acting brake part is in contact with a pressing member through the braking member so as to realize the braking of the elevating body. The elevator brake device is characterized by being provided with an invalidation retainer (22). Due to the arrangement of the invalidation retainer, under the turn-off state of the actuator, the elastic force of the spring of the acting arms can be overcome, so that the acting brake part is prevented from being in contact with the pressing member.

Description

technical field [0001] The present invention relates to a braking device for an elevator and elevator equipment using the braking device, in particular to a braking device using an actuator. Background technique [0002] As a device that uses an actuator to brake the lifting body, there is known a brake device having an actuator and a brake member. When the power supply of the actuator is cut off, the braking member slides into contact with the pressed body through elastic force, so that the lifting body decelerates and stops. In addition, as a device that uses an actuator to brake the lifting body, it can also be cited that when the lifting speed of the lifting body exceeds a predetermined value or when the lifting body travels in an uncontrolled state, using the actuator to brake the lifting body The braking device for braking the lifting body. [0003] As a prior art, for example, Patent Document 1 discloses an elevator device having a lifting body and a braking device,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/18
Inventor 酒井悠至座间秀隆平野薰羽田诚秀
Owner HITACHI LTD