Passenger lift with an electric safety interlock

Details Passenger lift with an electric safety interlock Passenger lift with an electric safety interlock

1993-07-14

1994-12-20

Noland, Kenneth W.

Elevator, industrial lift truck, or stationary lift for vehicle

Stairway assist for individual or minor barrier lift for...

Mounted adjacent stairway for travel parallel thereto

414921, 180270, 187242, 187280, 187285, 187298, B66B 920

Patent

active

053739159

ABSTRACT:
A passenger lift incorporates an electronic safety interlock to prevent all movement of the lift, until a restraining belt is fastened. In some embodiments, the interlock is a normally open electric switch located inside the restraining belt's buckle. The switch is closed and the movement of the lift actuated only when the restraining belt's matingly interlocking tab is inserted in the buckle.

REFERENCES:
patent: 4141089 (1979-02-01), Krumbeck
patent: 4420286 (1983-12-01), Hanson
patent: 4785906 (1988-11-01), Kang
patent: 4808056 (1989-02-01), Oshima
patent: 4904916 (1990-02-01), Gisske et al.
patent: 4913264 (1990-04-01), Voves et al.

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