Title:
エアダンパ
Document Type and Number:
Japanese Patent JP4041812
Kind Code:
B2
Abstract:
An air damper (1) includes a cylinder (3) having a bottom, a piston (5) received inside the cylinder to move freely back and forth coaxially, and an orifice provided in the piston. The piston (5) is formed of a synthetic resin, and has a piston rod (4) extending toward a side of the cylinder opposite to the bottom, and a recess portion (9a, 9b) provided on a portion facing the bottom in order to prevent sink or the like during molding of the piston. A protruding portion (10a, 10b) is provided on the bottom of the cylinder to protrude into the recess portion when the piston is fully moved into the cylinder.
Inventors:
Furuya Norihiro
Yosuke Yanagida
Yosuke Yanagida
Application Number:
JP2004207078A
Publication Date:
February 06, 2008
Filing Date:
July 14, 2004
Export Citation:
Assignee:
Honda motor industry stock company
Nifco Co., Ltd.
Nifco Co., Ltd.
International Classes:
F16F9/02; E05F3/02
Domestic Patent References:
| JP1138293U | ||||
| JP3036596U | ||||
| JP8105482A | ||||
| JP2002146861A |
Attorney, Agent or Firm:
Yoichi Oshima