Title:
SAFETY DEVICE
Document Type and Number:
Japanese Patent JP3455819
Kind Code:
B2
Abstract:
PURPOSE: To provide a safety device of one kind which can be widely used for various kinds of uses such as a double hinged door, a hinged door and so on by disposing a switch and an operating part for releasing locking in a switch case, and disposing a cam for locking an operation key in a cam case provided on the switch case.
CONSTITUTION: At the time of opening a door of a safety fence, an electric current is applied to a solenoid 58 to advance a movable iron core 60, and an operation part 56 is pressed by a driving pin 61. Whereupon, a transmission rod 55 is raised to press a release frame 47a, and a locking member 46 is separated from an engaging click 43 against a spring 49 so that the rotation of a cam 38 is put in the free state. When the door is opened, the engaging part 7b of an operation key 7 pulls a locking click 42 to rotate the cam 38 clockwise and retires from a through hole 32, and the cam 38 is put in the double acting state. After that, when application to the solenoid 58 is cut off, the movable iron core 60 and the locking body 46 are respectively returned.
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Inventors:
Hideo Niwa
Application Number:
JP11641493A
Publication Date:
October 14, 2003
Filing Date:
April 20, 1993
Export Citation:
Assignee:
Sanmei Electric Co., Ltd.
International Classes:
F16P3/08; E05B65/00; H01H27/00; (IPC1-7): F16P3/08; E05B65/00
Attorney, Agent or Firm:
Hiroshi Satake
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