Elevator
A technology of elevators and power supplies, which is applied in the field of elevators and can solve problems such as elevator work rate decline and service decline
Inactive Publication Date: 2014-04-23
TOSHIBA ELEVATOR KK
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- Description
- Claims
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Problems solved by technology
[0006] However, abnormalities in the operating circuit also include abnormalities that do not affect the safety of the elevator.
For example, in the case of occasional poor contact of the electromagnetic contactor contacts, if the opening and closing command signal is sent again, it will work normally.
[0007] In this way, if the car must be stopped for all failures including those that do not affect the safety of the elevator, the operating rate of the elevator will decrease and the service will decrease.
Method used
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Embodiment Construction
[0015] Below, for the implementation, use Figure 1 to Figure 4 Be explained. Description will be given with reference to the accompanying drawings.
[0016] figure 1 It is a schematic front view showing the structure of the elevator of this embodiment. figure 2 yes means figure 1 A block diagram of the structure of the brake system 1 of the elevator. image 3 yes means figure 2 A table for the determination of the fault status of the brake system 1. Figure 4 It is a block diagram of a modified example of the brake system of this embodiment.
[0017] First, the structure of the elevator of this embodiment is demonstrated.
[0018] The elevator in this embodiment has: a hoisting machine 20 arranged above the hoisting passage 24; the main pulley and the like; and the braking system 1 having a function of braking the motor of the hoisting machine 20 to stop the vertical movement of the car 22 and maintaining the stopped state.
[0019] The brake system 1 has: a brake ...
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Embodiments of the invention relates to an elevator, which has a brake device for braking a car so as to prohibit the reduction in working efficiency. The elevator provided by the embodiments comprises an operation circuit (3) for operating the brake device (2) and a control device (10) for controlling the brake device (2). The operation circuit (3) comprises a first contact (5a) and a second contact (5b) in serial connection, a first power supply sensing part (6a) which connects the first contact (5a) and the second contact (5b) and connects the brake device (2) and a brake power supply device (4) so as to sense a power supply, and a second power supply sensing part (6b) which connects the second contact (5b) and the brake device (2) and connects the bake device (2) and the brake power supply device (4) so as to sense a power supply. The control device (10) comprises output parts (12a, 12b) which send on / off instructions to the first contact (5a), input parts (11a-11c) to which information on states of the first power supply sensing part (6a) and so on is inputted, and a judging part (13) for judging whether the state of the operation circuit (3) and so on is normal based on the information inputted to the input parts (11a-11c).
Description
[0001] This application is based on Japanese patent application 2010-142203 (filing date: June 23, 2010), and enjoys the priority rights of this application. This application refers to the Japanese application and includes the entire content of the Japanese application. technical field [0002] Embodiments of the present invention relate to an elevator having a braking device for braking a car. Background technique [0003] Elevators have multiple safety devices for safe operation. These safety devices include a brake system that brakes the car moving up and down in the hoistway. The braking system is also an important part in the safety device of the elevator. [0004] A brake system generally has: a brake device; an operating circuit for operating the brake device; a brake operation sensing device that senses an operating state of the brake device; and a control device that controls these components. The operation circuit performs operations such as turning on and off t...
Claims
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IPC IPC(8): B66B5/16
Inventor 佐藤慎史
Owner TOSHIBA ELEVATOR KK