Electromagnetic friction brake with improved mounting pins

Details Electromagnetic friction brake with improved mounting pins Electromagnetic friction brake with improved mounting pins

1989-12-18

1990-12-04

Butler, Douglas C.

Brakes

Operators

Electric

188138, 188 721, 192 84C, 335219, 335266, B60L 700, H01F 706

Patent

active

049747053

ABSTRACT:
An electromagnetic friction brake in which a friction pad on an electromagnet frictionally engages a rotating armature disc when the electromagnet is excited. The electromagnet is attached to a fixed mounting member by a pair of pins which project into holes in the electromagnet. The pins and holes are arranged such that one pin sustains all of the angular thrust which is imposed on the electromagnet by the armature while the other pin sustains no angular thrust and serves to retain the electromagnet radially of the armature. Such an arrangement of the pins serves to reduce accelerated wear which otherwise occurs at the leading edge portion of the friction pad.

REFERENCES:
patent: 3446322 (1969-05-01), Wrensch
patent: 3734245 (1973-05-01), Hubbard
patent: 4014412 (1977-03-01), Swanson et al.
patent: 4135607 (1979-01-01), Brown et al.
patent: 4172242 (1979-10-01), Myers et al.
patent: 4216849 (1980-08-01), Neill
patent: 4228874 (1980-10-01), Brinkmann et al.
patent: 4344056 (1982-08-01), Kroeger et al.
patent: 4718523 (1988-01-01), Scheider et al.
patent: 4804075 (1989-02-01), Koitabashi

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