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Title:
ELECTRO-HYDRAULIC PRESSING TOOL
Document Type and Number:
Japanese Patent JP2004330347
Kind Code:
A
Abstract:

To provide an electro-hydraulic pressing tool which prevents the rise of fluid pressure after the completion of the operation, such as press fitting, without using a pressure control valve 11 by stopping the operation of a hydraulic pump 9 through detecting the fluid pressure using a pressure sensor 14.

The electro-hydraulic pressing tool carries out the operation, such as press fitting, by pressing the member to be pressed by the pressure of the fluid discharged from the hydraulic pump 9 driven by a DC motor 8. The electro-hydraulic pressing tool is configured so as to have the pressure sensor 14 for detecting the pressure of the fluid discharged from the hydraulic pump 9, and a comparator 16 and a stop switch 15 for stopping the DC motor 8 through intercepting the current for driving the DC motor 8 when the fluid pressure detected by the pressure sensor 14 exceeds a specified pressure.


Inventors:
MIYAMOTO SHINICHI
KITAHARA SATOYUKI
Application Number:
JP2003128906A
Publication Date:
November 25, 2004
Filing Date:
May 07, 2003
Export Citation:
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Assignee:
JAPAN STORAGE BATTERY CO LTD
IZUMI PROD CO
International Classes:
B25F5/00; B25B25/00; (IPC1-7): B25F5/00; B25B25/00
Attorney, Agent or Firm:
河▲崎▼ 眞樹



 
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