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Elevator and testing method for braking peremptorily

An emergency braking and elevator technology, applied in the field of elevators, can solve the problem that it is difficult for workers to run idle on the hoist sheave

Active Publication Date: 2005-09-07
HITACHI LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the position of the governor and the hoist is relatively far away, for example, the governor is set on the highest floor of the hoistway, and the hoist is set on the bottom floor, it is very difficult for the operator to test the speed governor on the top floor. It is difficult to visually confirm whether the sheave of the hoist installed on the bottom layer has idling

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  • Elevator and testing method for braking peremptorily
  • Elevator and testing method for braking peremptorily

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Embodiment Construction

[0013] Embodiments of the present invention will be described below with reference to the drawings.

[0014] figure 1 It is an overall configuration diagram showing an elevator apparatus according to an embodiment of the present invention. Such as figure 1 As shown, in the hoistway 10, the elevator car 1 and the counterweight 2 are suspended in the shape of a bucket by the sling 3 in a 2:1 pulley winding manner. And, the elevator car 1 travels in the vertical direction along the guide rail 8 . In addition, a winch 6 for driving the elevator and a control device 7 equipped with a microcomputer for controlling the winch 6 are respectively arranged on the bottom floor 11 in the hoistway 10 . At this time, the installation positions of the hoist 6 and the control device 7 are not limited to the above-mentioned positions, as long as the hoist 6 and the control device 7 are arranged near the lower part of the hoistway 10 or near the central part of the elevator without a machine ...

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PUM

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Abstract

This invention provides an elevator and its emergency stop testing method capable of making sure the sheave idling condition of a hoist easily even if an operator etc. is in a position apart from the hoist at the time of performing an emergency stop test. A machine room-less elevator according to the invention includes a speed governor 4 to sense the over-speed of an elevator car 1 and an emergency stopping device 5 actuated by the governor 4 to prevent the car 1 from dropping and is configured so that the hoist 6 and a control device 7 are installed near a part under the shaft 10 or near the middle part, in which the governor 4 is located near the upper part of the shaft 10, and a signal to show that the sheave 62 of the hoist 6 is idling when the test is to be conducted, is transmitted to a notifying means installed near the uppermost floor or a notifying means installed in the car.

Description

technical field [0001] The present invention relates to an elevator, in particular to a technique suitable for emergency braking tests. Background technique [0002] Conventionally, during elevator installation and periodic maintenance inspections, it has been necessary to perform an operation test on the safety device that prevents the elevator car from falling, that is, the emergency brake device. The method of this test is specified in Japanese Industrial Standard JIS-A4302 (1992). [0003] According to this regulation, firstly, when the elevator car 1 descends at a low speed as low as possible, manually start the clamping mechanism (sling clamping mechanism) of the governor to temporarily stop the elevator car, and then operate the winch to make the elevator The car descends. After that, even if the rope pulley (sheave) rotates, the elevator car will not descend to check whether the emergency braking device is operating normally. [0004] In addition, an invention rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/30B66B5/00B66B5/02
Inventor 荒堀升古桥昌也冈部令藤野笃哉
Owner HITACHI LTD