Elevator brake device and elevator equipment equipped therewith
A technology for braking devices, elevators, used in mechanically driven drum brakes, transportation and packaging, elevators, etc.
Inactive Publication Date: 2015-06-17
HITACHI LTD
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- Abstract
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- Application Information
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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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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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PROBLEM TO BE SOLVED: To provide a braking device for an elevator, which can move an elevating body when a power supply for energizing an actuator of the braking device cannot be secured, and to provide an elevator device using the braking device. SOLUTION: The braking device 10 of the elevator and the braking device 10 equipped with the elevator device are arranged in a pair facing each other and includes: operating arms 14 provided rotatably around a shaft 11 serving as a fulcrum; an operating braking part 17; a spring 15; an actuator 16; and a braking member for braking the elevating body in association with the contact of the operating braking part 17 with a pressed member 7. The braking device for the elevator is provided at the elevating body, and an invalidating stopper 22 preventing the contact of the operating braking part 17 with the pressed member 7 against the spring force of the spring 15 of the operating arms 14 can be mounted in the intercepted state of energization to the actuator 16.
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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IPC IPC(8): F16D51/12B66B5/18
Inventor 酒井悠至座间秀隆平野薰羽田诚秀
Owner HITACHI LTD