Fail-safe brake actuation system

Details Fail-safe brake actuation system Fail-safe brake actuation system

1995-05-31

1997-04-15

Pitts, Andrea L.

192 clutches and power-stop control

Stop mechanism

Material control

188173, 192 9, 477 9, 477172, 477190, B60K 4124

Patent

active

056200773

ABSTRACT:
The actuator uses an electric motor to drive a recirculating ball screw thread connection, to hold a brake-actuation spring at bay. After the spring has been compressed to the brakes-off position, the electric motor is de-energized. Then, the screw-thread connection is prevented from rotating and backing off, by virtue of the fact that the electric motor is connected to the screw thread via a high-reduction worm gear-box, which will not reverse-drive. An electric clutch is included between the screw-thread connection and the gear-box, the clutch being held, electrically, in the locked or drive condition while the brake is required to be held off. The brake is applied by releasing or de-energizing the clutch to the non-drive or free condition.

REFERENCES:
patent: 3741357 (1973-06-01), Krysiuk et al.
patent: 4022307 (1977-05-01), Berrie et al.
patent: 4223775 (1980-09-01), Lloyd
patent: 4538717 (1985-09-01), Blohm et al.
patent: 4805740 (1989-02-01), Wilke et al.
patent: 4844233 (1989-07-01), Kempf et al.
patent: 5180038 (1993-01-01), Arnold et al.

Affiliated with

Also associated with

Rating

Fail-safe brake actuation system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fail-safe brake actuation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fail-safe brake actuation system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-354791