Title:
OPERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/105037
Kind Code:
A1
Abstract:
An operation device configured so that, even if the operating speed of an operation section is any speed including zero, the operation device can effectively generate a resisting force against the operation of the operation section to prevent the pivoting and vibration of the operation section which are not expected by the operator.
An operation device (50) comprising an operation section (17) which is pivotably provided to a casing (1), hydraulic pilot valves (53A, 53B) which are operated by the pivotal operation of the operation section (17), and damper sections (54, 54) which, when the operation section (17) is pivotally operated, generate a resisting force against the pivotal operation. The damper sections (54, 54) are each configured so that pivoting friction plates (57), which pivot as the operation section (17) is operated, are pressed by a pressing spring (60) against stationary friction plates (58), which are prevented from pivoting, in the direction perpendicular to the direction of the pivoting, and thus the damper section (54, 54) generates frictional torque.
Inventors:
KUBO NOBUYASU
Application Number:
PCT/JP2011/000943
Publication Date:
September 01, 2011
Filing Date:
February 21, 2011
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
KUBO NOBUYASU
KUBO NOBUYASU
International Classes:
G05G5/03; E02F9/20; F15B13/042; F16K31/44
Foreign References:
| JPH06102950A | 1994-04-15 | |||
| JP2001124010A | 2001-05-08 | |||
| JP2002366242A | 2002-12-20 | |||
| JPH07295669A | 1995-11-10 | |||
| JPH11305863A | 1999-11-05 | |||
| JP2002193100A | 2002-07-10 | |||
| JPS61294281A | 1986-12-25 |
Other References:
See also references of EP 2541365A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
Patent business corporation Owner old patent firm (JP)
Patent business corporation Owner old patent firm (JP)
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Claims: