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Patent Searching and Data


Title:
OBSTACLE DETECTION DEVICE IN ELECTRICITY-DRIVEN SWITCHGEAR
Document Type and Number:
Japanese Patent JPH0893363
Kind Code:
A
Abstract:

PURPOSE: To detect a wiring trouble of an obstacle detection device when detecting an obstacle accompanied by the opening of a switching contact.

CONSTITUTION: A resistor means 11 is connected to a tape switch 6 wired to the bottom of a seat plate. Even when the tape switch 6 is opened, a wiring is installed so that an electric current may flow to an obstacle detection circuit. On one hand, a resistant value of the resistor means 11 is set so that an electric current value may flow, which starts a detection operation means 8 when the tape switch 6 is opened and a weak current below the electric current value may flow when the tape switch 6 is closed.


Inventors:
UENO KOHEI
Application Number:
JP1994000254603
Publication Date:
April 09, 1996
Filing Date:
September 22, 1994
Export Citation:
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Assignee:
SANWA SHUTTER CORP
International Classes:
E06B9/80; E06B9/84; (IPC1-7): E06B9/80
Attorney, Agent or Firm:
廣瀬 哲夫