SHOCK ABSORBER OF OPERATION MECHANISM FOR OPENING AND CLOSING DEVICE AND METHOD FOR LUBRICATING SAME

Title:

SHOCK ABSORBER OF OPERATION MECHANISM FOR OPENING AND CLOSING DEVICE AND METHOD FOR LUBRICATING SAME

Document Type and Number:

WIPO Patent Application WO/2011/043076

Kind Code:

A1

Abstract:

Disclosed is a shock absorber wherein a piston rod (15) and a first piston (13) are disposed within an outer cylinder (11) and an inner cylinder (12), and a second piston for absorbing volume change of operating oil (24) is disposed. Further, a first return spring (18) for returning the piston rod (15) to a shutdown position, and a second return spring (20) for returning the operating oil (24) to a high-pressure chamber (25) by pressurizing a second piston (14) are provided. Further, air is removed from the inside of a shock absorber (10) by a vacuum pump (38), and the operating oil which has been degassed is supplied to the shock absorber.

Inventors:

OHDA YOSHIAKI
KOBAYASHI YOSHITAKA
SHIMIZU MASAHARU
MARUSHIMA SATOSHI
TAKAGI HIROKAZU
INOUE TOORU

Application Number:

PCT/JP2010/006006

Publication Date:

April 14, 2011

Filing Date:

October 07, 2010

Export Citation:

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Assignee:

TOSHIBA KK (JP)
OHDA YOSHIAKI
KOBAYASHI YOSHITAKA
SHIMIZU MASAHARU
MARUSHIMA SATOSHI
TAKAGI HIROKAZU
INOUE TOORU

International Classes:

F16F9/32; F16F9/18; F16F9/48; H01H33/42

Foreign References:

JPS60155001A	1985-08-14
JP2007263324A	2007-10-11
JPH10228847A	1998-08-25
JP2008291898A	2008-12-04
JPH09303467A	1997-11-25
JPH09303467A	1997-11-25
JP2008291898A	2008-12-04
JPH10228847A	1998-08-25

Other References: