Electro-mechanical brake unit, preferably for a rail vehicle

Details Electro-mechanical brake unit, preferably for a rail vehicle Electro-mechanical brake unit, preferably for a rail vehicle

1989-03-20

1990-09-04

Butler, Douglas C.

Brakes

Operators

Spring

188158, 188161, 188 721, R61H 1300, F16D 6534

Patent

active

049536699

ABSTRACT:
An electro-mechanical brake unit includes a drive sleeve (8), which may be subjected to a torque, for example from a coil spring (6), and a ball screw (15, 25) for transforming the torque into an axial force for brake application. Between the drive sleeve and the ball screw there is a control arrangement, comprising an outer locking spring (16), a control sleeve (17), and an inner locking spring (18), a control motor (20) being connected to the control sleeve for rotation thereof in either direction. The control sleeve is connected to the locking springs for control of their locking and unlocking functions.

REFERENCES:
patent: 874219 (1907-12-01), Mahoney
patent: 2218605 (1940-10-01), Down
patent: 3131788 (1964-05-01), Newell
patent: 3217843 (1965-11-01), Newell et al.
patent: 3280944 (1966-10-01), Kyllonen
patent: 4033435 (1977-07-01), Bayliss
patent: 4202430 (1980-05-01), Stevens
patent: 4476965 (1984-10-01), Brown, Jr. et al.

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