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Patent Searching and Data


Title:
LIQUID DAMPER DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/024359
Kind Code:
A1
Abstract:
Provided is a liquid damper device by which the operation of a movable body can be silently completed due to damping, the durability of a valve body can be improved, and the characteristics in the relationship between a moving speed and a drag of a piston can be adjusted in a wider range. A liquid damper device (1) is provided with a cylinder (3) in which a silicone oil is enclosed, a piston (5) which divides the inside of the cylinder (3) into a pressure chamber (11) side and a counter pressure chamber (13) side and which is provided with a piston rod (15) which protrudes outwardly from the cylinder (3), flow passages (41) provided in the piston (5) to cause the pressure to be adjusted, and a flexible valve body (42) for the flow passages (41). The surface (37) of the piston (5) which is located on the pressure chamber (11) side and into which the flow passages open is provided with convex surface portions (43) which locally support the outer peripheral edge of the valve body (42) at two portions opposed to each other in the radial direction of the piston (5) and a concave surface portion (45) which is formed between the convex surface portions (43). The flow passages (41) open at a median bottom portion (45a) of the concave surface portion (45).

Inventors:
NAKAYA, Shinichiro (3-19-1 Kanda Nishiki-cho, Chiyoda-k, Tokyo 54, 〒1010054, JP)
中谷進一郎 (〒54 東京都千代田区神田錦町3丁目19番地1 不二ラテックス株式会社内 Tokyo, 〒1010054, JP)
Application Number:
JP2010/003886
Publication Date:
March 03, 2011
Filing Date:
June 10, 2010
Export Citation:
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Assignee:
Fuji Latex Co., Ltd. (3-19-1 Kanda Nishiki-cho, Chiyoda-ku Tokyo, 54, 〒1010054, JP)
不二ラテックス株式会社 (〒54 東京都千代田区神田錦町3丁目19番地1 Tokyo, 〒1010054, JP)
NAKAYA, Shinichiro (3-19-1 Kanda Nishiki-cho, Chiyoda-k, Tokyo 54, 〒1010054, JP)
International Classes:
F16F9/32; E05F3/04; F16F9/34
Foreign References:
JP2005299791A2005-10-27
JP2008057685A2008-03-13
JPS4523099Y11970-09-11
Other References:
None
Attorney, Agent or Firm:
SUDO, Yuichi (1-6-7, Atago Minato-k, Tokyo 02, 〒1050002, JP)
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