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Elevator car door lock

A technology of locking device and car door, which is applied to elevators, transportation and packaging in buildings, and can solve problems such as difficulty in switch design

Inactive Publication Date: 2014-01-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The parts of the electrical safety device are specified to be required to work reliably through the locking part, generally, the parts of the electrical safety device are configured to provide a contact on the latch, and the contact is only in contact with the switch to be energized when locked), and If the switch is installed in such a way that the energization is cut off when the car door is unlocked, the switch and the contacts are strongly collided when the car door is locked, so the design of the switch becomes difficult

Method used

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  • Elevator car door lock
  • Elevator car door lock
  • Elevator car door lock

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Embodiment approach 1

[0021] figure 2 It is a front view showing the overall structure of the elevator car door locking device of the present invention. generally as figure 2 As shown, the split elevator doors include a first car door 1 and a second car door 2 . When the doors are opened, first, the first car door 1 is opened to the left, and the second car door 2 is opened to the right. The first car door suspension device 3 suspends the first car door 1 , and the second car door suspension device 4 suspends the second car door 2 . The first car door suspension device 3 and the second car door suspension device 4 are movable left and right via guide rails 5 . Hereinafter, for the sake of simplicity, only the first car door 1 will be described. In addition, in this embodiment, the door of an elevator is demonstrated using the door of a side opening type as an example, However, this invention is not limited to this, It is applicable also to the door of a side opening type.

[0022] The car do...

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Abstract

A car-door locking device for an elevator includes: a car switch fixed to a door hanger; a car fixed latch fixed to any one of the car and a bracket fixed to the car; a car arm fixed to the one-side opening type door of the car through an intermediation of a first car shaft, the car arm being pressed against a landing vane fixed to a one-side opening type landing-door to turn on the first car shaft when the one-side opening type door of the car is opened; and a car movable latch fixed to a door hanger through an intermediation of a second car shaft, the car movable latch de-energizing the car switch to inhibit an operation of the car and being released from the car fixed latch based on turning of the car movable latch on the second car shaft caused by the turning of the car arm.

Description

technical field [0001] The present invention relates to an apparatus for mechanically locking a car-side door of an elevator at a position separated from a landing area as a lock release area. The door on the car side of the elevator is generally opened by a door driving device arranged on the car of the elevator. For example, when the car stops between floors (outside the landing area) due to a power outage and the passenger manually forcibly opens the car door, the passenger may fall into the hoistway. The car door locking device of an elevator is a device for preventing the door on the car side from being opened manually. Background technique [0002] There is Japanese Unexamined Patent Publication No. 2003-312968 as a conventional elevator car door locking device. In the conventional elevator car door locking device described in Japanese Patent Application Laid-Open No. 2003-312968: [0003] (i) When the car stops at the landing position and the passenger wants to pry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B13/12
CPCB66B13/12
Inventor 北泽昌也
Owner MITSUBISHI ELECTRIC CORP