ONE-WAY DAMPER

Japanese Patent JP3956446

B2

PROBLEM TO BE SOLVED: To perform braking operation on large torque by constituting an inner peripheral surface of an intermediate rotary body out of a toothed first inner peripheral surface projecting toward a shaft member, a toothless second inner peripheral surface continuously extending from the first inner peripheral surface and a toothless third inner peripheral surface extending so as to separate from an outer peripheral surface of the shaft member.
SOLUTION: An inner peripheral surface 6 of an intermediate rotary body 5 has sets of inner peripheral surfaces composed of a circular arc-shaped toothed (41) inner peripheral surface 42 projecting toward a shaft member 4 by gradually approaching a tooth 3 of an outer peripheral surface 2 of the shaft member 4, a toothless inner peripheral surface 43 extending in the rotational direction A of the shaft member 4 continuing from a bottom part of an inner peripheral surface 42 and a toothless inner peripheral surface 44 extending from a top part of the inner peripheral surface 42 so as to separate from the outer peripheral surface 2 of the shaft member 4, in the relative rotational direction A of the shaft member 4. The inner peripheral surface 43 of the respective sets is continuously connected to the inner peripheral surface 44 of the adjacent other set. Therefore, inconvenience such as operational failure is hardly caused, and even if it is a small type, braking operation can be desirably performed on large torque.

Masamitsu Kojima
Miteru Igarashi

JP28135697A

August 08, 2007

September 29, 1997

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OILES CORPORATION

A47C1/025; F16D63/00; F16F9/12; (IPC1-7): F16D63/00; A47C1/025; F16F9/12

JP4025626A
JP6068300B2
JP7158679A

Takeshi Takada

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