Brake structure of traction machine

Details Brake structure of traction machine Brake structure of traction machine

2006-07-11

2006-07-11

Torres, Melanie (Department: 3683)

Brakes

Operators

Spring

C188S1960BA

Reexamination Certificate

active

07073640

ABSTRACT:
A brake structure of a traction machine includes a brake drum which is made rotatable about a shaft disposed on a rotary axis of the traction machine, and an electromagnetic brake unit built in an inner space of the brake drum. The electromagnetic brake unit includes a plurality of movable iron cores, a plurality of brake shoes located on the outside of the individual movable iron cores and joined thereto by connecting members, the brake shoes having curved outer surfaces facing a curved inner surface of the brake drum, and a one-piece formed stationary iron core block. The one-piece formed stationary iron core block has a plurality of stationary iron core portions joined to the individual movable iron cores via compression springs for forcing the individual brake shoes against the curved inner surface of the brake drum via the movable iron cores and the connecting members.

REFERENCES:
patent: 2385459 (1945-09-01), Nelson et al.
patent: 2467891 (1949-04-01), Hollander
patent: 3584710 (1971-06-01), Frohlich
patent: 14 75 356 (1969-06-01), None
patent: 1 675 145 (1971-07-01), None
patent: 2001343033 (2001-12-01), None
patent: 2002-242961 (2002-08-01), None
patent: 2002-303341 (2002-10-01), None

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