Title:
COUPLING FOR MANIPULATION LEVER DEVICE
Document Type and Number:
WIPO Patent Application WO/1994/012922
Kind Code:
A1
Abstract:
A coupling for a manipulation lever device for connecting a shaft (23) that is rotated by a lever (20) supported on a valve main body (10) to a rotating shaft (25a) of a rotating angle sensor (25) mounted on the valve main body, comprising a fitting recessed portion (40) formed in the shaft, a coupling (41) adapted to be fitted into the fitting recessed portion, and a projection (42) provided on the rotating shaft so as to be fitted into a square hole (45) of the coupling, wherein the coupling is constituted by a pair of first pieces (43) confronting each other and a pair of wave-shaped second pieces (44) confronting each other so as to be formed into a shape having therein a square hole, wherein the pair of first pieces are fitted into the fitting recessed portion of the shaft, and wherein the projection is fitted into between the pair of second pieces, whereby even if the interference of a fitting portion between the square hole of the coupling and the projection is made large, the deformation of the coupling is made small, thereby making it possible to fit the coupling into the fitting recessed portion without any gap.
Inventors:
HAYASHI SEITA (JP)
Application Number:
PCT/JP1993/001752
Publication Date:
June 09, 1994
Filing Date:
December 01, 1993
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
HAYASHI SEITA (JP)
HAYASHI SEITA (JP)
International Classes:
F16D3/04; F16D3/12; F16D3/52; G05G9/04; G05G9/047; H01H25/00; H01H25/04; (IPC1-7): G05G9/047; G05G9/053
Foreign References:
| JPS5340658Y2 | 1978-10-02 |
Other References:
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 27455/1986 (Laid-Open No. 140636/1987) (KOMATSU LTD.), (04.09.87), page 5.
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