Two stage electromagnetic braking device for an elevator

Details Two stage electromagnetic braking device for an elevator Two stage electromagnetic braking device for an elevator

1990-09-27

1992-10-06

Pellinen, A. D.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187109, B66B 132

Patent

active

051533898

ABSTRACT:
An electromagnetic brake for arresting the rotation of a driving shaft of an elevator includes a pair of brake shoes and a pair of plungers operated by separate solenoidal coils. Each plunger is in communication with a corresponding break shoe. A brake coil exciting circuit is provided for exciting the brake coils and differentiating the timing at which the excitations of the brake coils are attenuated, so that the brake shoes can be applied to the driving shaft intermittently.

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patent: 4984659 (1991-01-01), Nomura

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