Elevator overspeed protection apparatus

A kind of protective equipment and elevator technology, which is applied in the direction of elevators, transportation and packaging, etc. It can solve the problems of inconvenient handling, changes in the displacement of the flat block 17, danger, etc.
CN1500714AInactive Publication Date: 2004-06-02MITSUBISHI ELECTRIC CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
MITSUBISHI ELECTRIC CORP
Publication Date
2004-06-02
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

An elevator overspeed protection apparatus includes a brake apparatus which makes use of eddy currents. The brake apparatus includes a magnetic spring placed on a car in the proximity of a pickup of the elevator overspeed protection apparatus such that, when an arm of the brake apparatus is in a horizontal condition, a displacement of the pickup is prevented with a strong attracting force by the magnetic spring, but when the arm is inclined obliquely, the attracting force of the magnetic spring is prevented from acting upon the pickup. Due to the construction, the brake apparatus operates stably and with certainty and has an increased life.
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Description

[0001] This application is a divisional application of the patent application with the application number 00119247.7, the application date being November 3, 1995, and the invention title being "Elevator Overspeed Protection Equipment". technical field

[0002] The present invention relates to an elevator overspeed protection device, or relates to an elevator controller, which is used to safely operate the elevator to lift people and / or objects. Background technique

[0003] Figure 93 (1) and 93(2) are a plan view and a front view respectively, showing a traditional elevator overspeed protection device such as disclosed in Japanese Patent (Open) Application No. Heisei 5-147852. exist Figure 93 (1) and 93 (2), label 12 refers to an elevator car, and 13 refers to a base that is located on the car 12, and 14 is the arm that is formed by a pair of parallel connecting rods, and 15 is provided with on the base 13 and is used for Supporting arm 14 is the fulcrum that rotates, and ...

Claims

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