Roller locking brake

Details Roller locking brake Roller locking brake

1991-03-28

1992-04-14

Butler, Douglas C.

Brakes

Operators

Spring

188 8284, 188 829, B60T 1304

Patent

active

051039419

ABSTRACT:
A roller locking brake structure includes a roller locking/lifting ring, a housing, a set of conical locking rollers, a striker ring and a drive disc. The roller locking/lifting ring includes respective V-shaped locking cam surface segments for each locking roller which is in the form of a truncated cone and provides a force and torque reaction surface for forces and torques generated in the braking process as well as providing a channel for a magnetic coil and flux return path of a magnetic circuit used to release a conical roller when the brake is off. The locking conical rollers couple the ring to the rim surface of the drive disc which provides another cam surface. The striker ring is located adjacent the rollers and is pulled down against the small end of the rollers by an electromagnetic coil when energized to decouple the locking rollers from the drive disc and thus cease the braking action.

REFERENCES:
patent: 2693254 (1954-11-01), Barish
patent: 3068975 (1962-12-01), Theuer
patent: 3096863 (1963-07-01), Shefke
patent: 3169607 (1965-02-01), Romney
patent: 3198293 (1965-08-01), Mathews
patent: 3536169 (1970-10-01), Arnold
patent: 3812936 (1974-05-01), Dane
patent: 3900089 (1975-08-01), Ivey
patent: 4119310 (1978-10-01), Trubody

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