Invention Grant
- Patent Title: Hydraulic shock absorber
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Application No.: US14605016Application Date: 2015-01-26
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Publication No.: US09328792B2Publication Date: 2016-05-03
- Inventor: Masatoshi Ohta
- Applicant: Showa Corporation
- Applicant Address: JP Gyoda-Shi
- Assignee: SHOWA CORPORATION
- Current Assignee: SHOWA CORPORATION
- Current Assignee Address: JP Gyoda-Shi
- Agency: Leason Ellis LLP
- Priority: JP2014-062773 20140325
- Main IPC: F16F9/00
- IPC: F16F9/00 ; F16F9/44 ; F16F9/34

Abstract:
A hydraulic shock absorber includes a damping force generation unit and a damping force adjustment unit. The damping force adjustment unit includes a push rod that changes an opening area of an oil path formed in a piston rod, an electric motor functioning as a driving source, and a feed screw mechanism that converts rotation of the electric motor into linear movement of the push rod. The feed screw mechanism includes a first slider that is screwed to an output shaft of the electric motor in an advanceable/retractable manner, a second slider is fitted movably to the first slider, and a set spring that pushes the second slider against one end of the push rod.
Public/Granted literature
- US20150276003A1 HYDRAULIC SHOCK ABSORBER Public/Granted day:2015-10-01
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