Rotary damper and assist grip device
AssigneeNifco Inc.
InventorsKazumasa Kurihara, Masanobu Kawamoto, Masayuki Nishiyama
Life of this patent
Estimating the term…
Abstract
A rotary damper includes a housing having an annular groove with an inlet portion, and a rotor having a main annular portion to be inserted into the annular groove and a cap portion attached at one side of the main annular portion. The main annular portion is inserted into the annular groove to form a space therein so that the cap portion closes the annular groove. A plurality of sealing members is situated on inner and outer sides of the main annular portion for sealing the space, and a viscous fluid is filled in the space. An engaging shoulder portion is provided on one of the housing and rotor, and an engaging portion is provided on the other of the housing and rotor for engaging said engaging shoulder portion.
Claims6
A rotary damper comprising:
- a housing having an annular groove with an inlet portion, and an insertion hole at a center thereof;
- a rotor having a main annular portion to be inserted into said annular groove, a cap portion attached at one side of the main annular portion, and an insertion cylinder situated radially inside the main annular portion and rotationally located in the insertion hole, said main annular portion being inserted into the annular groove to form a space therein so that the cap portion closes the annular groove,
- a plurality of sealing members situated on inner and outer sides of the main annular portion for sealing the space,
- a viscous fluid filled in the space,
- an engaging shoulder portion provided on one of said housing and rotor;
- and
- an engaging portion provided on the other of the housing and rotor for engaging said engaging shoulder portion.
Dependencies are inferred from the claim text.