SERVO MOTOR BRAKE DEVICE
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United States of America Patent
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N/A
Issued Date -
Sep 3, 2009
app pub date -
Feb 12, 2009
filing date -
Mar 3, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A small-sized, lightweight servo motor brake device (1) that has a low operation speed for releasing a brake during normal operation is provided, wherein compression coil springs (7) cause a slide plate (6) to be pressed against a brake disc (4) that is securely connected to a motor shaft (2), and a braking state is formed. When a small-sized motor (12) causes a cam disc (8) to rotate in a direction in which a cam follower (10) rolls up from a trough (9b) of a cam surface (9) to a peak (9a), the slide plate (6) moves against the spring force away from the brake disc (4), and the device switches to a rotation-maintaining state in which the braking force has been released. When the cam disc (8) is caused to rotate further in the same direction, the cam follower (10) drops from the peak (9a) of the cam surface (9) into a next trough (9b), the slide plate (6) is again pushed against the brake disc (4) by the force of the springs, and the device switches to the braking state in which a braking force acts upon the motor shaft (2).
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