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Title:
LOCKING DEVICE
Document Type and Number:
Japanese Patent JP2005213781
Kind Code:
A
Abstract:

To provide a locking device lockable regardless of dimensional deviation and the size of a clearance due to the looseness and aging effect of an opening/closing part and an opening, capable of determining whether locking is performed normally and whether the door is closed, and lockable only when the opening/closing part and the opening are closed.

This locking device 3 is provided with a base 6 provided at a sash door 1R; a dead bolt 8 capable of going in and out of an opening/closing operation region of the sash doors 1L, 1R; a drive mechanism 10; and a restraining member 5 provided on the other side of the sash door 1L and receiving the dead bolt 8 projected by the drive mechanism 10 to regulate opening of the sash doors 1L, 1R. The drive mechanism 10 is provided with a helical spring 34 for further energizing the dead bolt 8 to the restraining member 5 side when the dead bolt 8 abuts on the restraining member 5. Further, a first projecting part 12A, a second projecting part 12B, contacts 13, 14 and conductive projections 28A, 28B are provided for detecting whether the dead bolt 8 appropriately closes the opening 2D.


Inventors:
UCHIDA AKIYOSHI
NAGANO SHIGERU
MORIMOTO TAKEYUKI
YAMAGUCHI MORIO
Application Number:
JP2004000019077
Publication Date:
August 11, 2005
Filing Date:
January 27, 2004
Export Citation:
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Assignee:
MAX CO LTD
International Classes:
E05B45/06; E05B47/00; (IPC1-7): E05B45/06; E05B47/00
Attorney, Agent or Firm:
西脇 民雄
西村 公芳



 
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