Title:
HYDRAULIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2003/106086
Kind Code:
A1
Abstract:
A hydraulic actuator comprising a spool valve (24) for switching an oil circuit through which pressure oil produced by a pressure oil producing mechanism flows, the spool valve (24) being disposed so that it is slidable in a direction orthogonal to a piston rod (18), a columnar grip handle (34) to be gripped by the operator and attached to the outside of a main body casing (5) in parallel with the piston rod (18), the grip handle (34) being turnable around the axis of the grip handle (34), the spool valve (24) and the grip handle (34) being connected to each other through a cam mechanism (29, 30, 31). The grip handle (34) is turned to vertically move the spool valve (24), controlling the direction of flow of the pressure oil.
Inventors:
OIDE EISUKE (JP)
Application Number:
PCT/JP2003/007217
Publication Date:
December 24, 2003
Filing Date:
June 06, 2003
Export Citation:
Assignee:
OGURA KK (JP)
OIDE EISUKE (JP)
OIDE EISUKE (JP)
International Classes:
B23D15/14; B23D17/06; B23D29/00; B25F5/00; B26D5/12; F15B15/06; A62B3/00; (IPC1-7): B23D29/00
Foreign References:
| JPH07241720A | 1995-09-19 | |||
| JPH01295710A | 1989-11-29 | |||
| JPH07148610A | 1995-06-13 | |||
| US6108867A | 2000-08-29 |
Other References:
See also references of EP 1537933A4
Attorney, Agent or Firm:
Yoshitake, Kenji (Room 323 Fuji Bldg., 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo, JP)
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