Title:
AIR DAMPER
Document Type and Number:
WIPO Patent Application WO/2019/039370
Kind Code:
A1
Abstract:
Provided is an air damper capable of rapidly switching from a braking force released state to a braking force imparted state, and with which it is possible to obtain a braking force that is stable at all times. This air damper (10) includes a cylinder (20), a piston (30) and a valve body (60), wherein: the piston (30) includes a head portion (31) and a shaft portion (32); a first chamber (R1) and a second chamber (R2) are formed inside the cylinder (20); a communicating hole (37) allowing the first chamber (R1) and the second chamber (R2) to communicate with one another is formed in the head portion (31); a valve seat (38) with which the valve body (60) comes into contact and from which the valve body (60) moves away is formed in an opening portion peripheral edge of one end thereof; the valve body (60) includes a valve main body (61) and an urging leg portion (69) which urges the valve main body (61) toward the valve seat (38); and the urging leg portion (69) is provided on the opposite side of the valve main body (61) to the valve seat (38) and is formed integrally with the valve main body (61).
More Like This:
| WO/2005/075262 | A SAFETY DEVICE |
Inventors:
CHO JUNG HYUNG (KR)
TAMAI NOBUHIRO (KR)
TAMAI NOBUHIRO (KR)
Application Number:
PCT/JP2018/030388
Publication Date:
February 28, 2019
Filing Date:
August 16, 2018
Export Citation:
Assignee:
PIOLAX INC (JP)
International Classes:
F16F9/02; B60R7/06
Foreign References:
| JP2017096375A | 2017-06-01 | |||
| JP2010265990A | 2010-11-25 | |||
| JPH1044873A | 1998-02-17 | |||
| JPH1038004A | 1998-02-13 |
Attorney, Agent or Firm:
MATSUI Shigeru (JP)
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