Title:
HYDRAULICALLY OPERATED TOOL
Document Type and Number:
Japanese Patent JPH11114852
Kind Code:
A
Abstract:
To improve working efficiency by speeding up the reciprocating motion such as of a cutting work while maintaining separated state from the valve seat of a switching valve.
This operating tool is provided with oil exhust ports 5 which are drilled to discharge oil in a cylinder 1 and a operating valve 10 to open and close the oil exhust ports 5. Plural oil exhust ports 5 are provided an they are formed to secure the separated state of the operating valve 10 when oil is discharged from the cylinder 1.
Inventors:
HAYASHI SOICHI
Application Number:
JP27896497A
Publication Date:
April 27, 1999
Filing Date:
October 13, 1997
Export Citation:
Assignee:
LOBTEX CO LTD
International Classes:
B25B25/00; B23D29/00; (IPC1-7): B25B25/00; B23D29/00
Attorney, Agent or Firm:
Noboru Fujimoto (2 outside)
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