Title:
ROTARY DAMPER AND COVER OPENING/CLOSING DEVICE WITH THE DAMPER
Document Type and Number:
Japanese Patent JP3427284
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make a rotary damper compact which has means for varying torque according to the direction of rotation and returning a rotor to an original position when the rotor is rotated in a casing.
SOLUTION: In a rotary damper 1 for changing torque produced according to the direction of rotation by combining a projection (t) formed on a shaft 3a of a part of a rotor 3 built-in a cylindrical casing 2 receiving viscous fluid and a valve body 7 covering the projection (t), a coil spring 5 is disposed in the casing 2 to engage the casing 2 at one end and a rotor 3 at the other end. If rotary load on the rotor 3 rotating in a direction of a high torque side is removed, the rotor 3 is rotated in a direction of a low torque side to return to an original position.
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Inventors:
Kenji Takahashi
Application Number:
JP30656995A
Publication Date:
July 14, 2003
Filing Date:
October 31, 1995
Export Citation:
Assignee:
Tok Bearing Co., Ltd.
International Classes:
F16F9/14; G10C3/02; (IPC1-7): F16F9/14; G10C3/02
Domestic Patent References:
| JP212541U | ||||
| JP43097U | ||||
| JP710575U |
Attorney, Agent or Firm:
Kunihiko Ohashi