Rotational resistance applying device in main shaft driving...

Details Rotational resistance applying device in main shaft driving... Rotational resistance applying device in main shaft driving...

2011-04-26

2011-04-26

Schwartz, Christopher P (Department: 3657)

Brakes

Operators

Spring

C074S81300L

Reexamination Certificate

active

07931131

ABSTRACT:
A rotational resistance applying device in which a hollow roller is provided between a first surface of a clamp piston (pressing member) and a second surface of a sliding disc (a press member), and in which a pressing force applied to the clamp piston acts upon the sliding disc through the hollow roller that press-contacts the first and second surfaces by displacement of the clamp piston. By this, rolling resistance of the hollow roller resiliently deformed by the pressing force causes a rotational resistance to be applied to a main shaft within a range allowing rotation. This makes it possible to prevent pulsation from being generated in the rotation of the main shaft. In addition, even if the pressing force is applied to the clamp piston, the hollow roller rolls, so that wear of the clamp piston and wear of the sliding disc can be restricted.

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patent: 2010/0175505 (2010-07-01), Tatsuda
patent: 2000-218404 (2000-08-01), None
patent: 2006-95668 (2006-04-01), None

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