Title:
ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2014/115648
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an actuator such that egress of a lubricant to the outside of a housing during forward and rearward movement of a rod is prevented. The actuator comprises: a housing having a rod through-hole; a rod which passes through the rod through-hole such that a portion thereof protrudes to the outside of the housing and is driven forward and rearward; a first rod sealing member which is arranged near the outside of the housing in the rod through-hole; a second rod sealing member arranged near the inside of the housing in the rod through-hole; a lubricant supply part provided in the housing and supplying lubricant to the rod through-hole; and a pressure change absorption groove which is provided between the first rod sealing member and the second rod sealing member in the rod through-hole to communicate with the lubricant supply part, and forms an air layer while absorbing the pressure changes associated with the forward and rearward movement of the rod.
Inventors:
AMANO KATSUTOSHI (JP)
OTSUKA YUKIHARU (JP)
OTSUKA YUKIHARU (JP)
Application Number:
PCT/JP2014/050775
Publication Date:
July 31, 2014
Filing Date:
January 17, 2014
Export Citation:
Assignee:
IAI CORP (JP)
International Classes:
H02K7/06; F16H25/20; F16J15/18
Domestic Patent References:
| WO2013008539A1 | 2013-01-17 |
Foreign References:
| JPH0569200A | 1993-03-23 | |||
| JP2001200881A | 2001-07-27 | |||
| JPH0738780U | 1995-07-14 | |||
| JP4918234B2 | 2012-04-18 | |||
| JP2001124175A | 2001-05-08 | |||
| JP4918234B2 | 2012-04-18 | |||
| JP2012193195A | 2012-10-11 |
Other References:
See also references of EP 2950428A4
Attorney, Agent or Firm:
SHIMANO Yoshiichi (JP)
Shimano 美伊智 (JP)
Shimano 美伊智 (JP)
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