Title:
CYLINDER WITH BUILT-IN STROKE SENSOR
Document Type and Number:
WIPO Patent Application WO/1991/003652
Kind Code:
A1
Abstract:
This invention relates to a cylinder with a built-in stroke sensor which is mounted to machine and equipment used in a rigorous environment, such as construction equipment. The cylinder of this invention minimizes a storage space for the stroke sensor and facilitates inspection/replacement of the stroke sensor. To this end, an eccentric member 8 is fitted to the tip of a sensor rod (6) and this member is equipped at its center with recessed portion (10, 11) which is coaxial with the sensor rod (6) and at its tip with projecting or recessed portion (9a, 9b) supported pivotally by recessed or projecting portion (3a, 3b) disposed at the center of the end surface of the rod head (3). A ring-like member (4) that engages with the recessed portion (10, 11) of the eccentric member 8 is fitted into the hollow portion of the piston rod (2). The projecting or recessed portion (9a, 9b) that is supported pivotally by recessed or projecting portion (12a, 12b) disposed at the center of the end surface of a bottom (12) may be provided to the tip of the eccentric member (8) and the ring-like member (4) engaging with the recessed portion (10, 11) of the eccentric member 8 may be fitted to the hollow portion of the cylinder (1).
Inventors:
MURAYAMA OSAMU (JP)
HIROSAWA YOSHIYUKI (JP)
NAGAHASHI NOBUYUKI (JP)
HIROSAWA YOSHIYUKI (JP)
NAGAHASHI NOBUYUKI (JP)
Application Number:
PCT/JP1990/001121
Publication Date:
March 21, 1991
Filing Date:
August 31, 1990
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
F15B15/28; (IPC1-7): F15B15/14; F15B15/28
Foreign References:
| JPS56106209U | 1981-08-18 | |||
| JPS51123494U | 1976-10-06 | |||
| JPS61164803U | 1986-10-13 | |||
| JPS6325304U | 1988-02-19 |
Other References:
See also references of EP 0441981A4
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