Elevator – industrial lift truck – or stationary lift for vehicle – Having specific means contacting or on load support for... – Includes movable contact component on support for engaging...
Patent
1994-04-25
1996-03-05
Noland, Kenneth
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific means contacting or on load support for...
Includes movable contact component on support for engaging...
187375, B66B 504
Patent
active
054959195
ABSTRACT:
A safety brake apparatus for a vehicle traveling in an elevator hoistway is provided, comprising a first link, a pair of second links, a connector rod, and an intermediate link. The first link is pivotly attached to a first side member of the vehicle. The connecting rod extends through the first and second side members, pivotly mounted within each side member. One of the second links is fixed to the connecting rod on the first side member side of the vehicle and the other second link is fixed to the connecting rod on the second side member side of the vehicle. The intermediate link is pivotly attached to both the first and second links on the first side member side of the counterweight. Each second link is connected to a safety brake. Actuating the first link causes the intermediate link to rotate the second links and therefore the connector rod, and causes the second links to actuate the respective safety brake.
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Jones "Ingenious Mechanisms for Designers and Inventors" 1936, The Industrial Press, New York, pp. 407-408.
Draper James M.
Ericson Richard J.
Noland Kenneth
Otis Elevator Company
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