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Title:
MECHANISM FOR INHIBITING SPIN OF OPENING AND CLOSING OPERATION MEMBER OF LATCH LOCK SERVING ALSO AS DEAD BOLT
Document Type and Number:
Japanese Patent JP2009114730
Kind Code:
A
Abstract:

To provide a mechanism for inhibiting spin of an opening and closing operation member of a latch bolt serving also as a dead bolt capable of inhibiting spin of the opening and closing operation member when operating a locking-unlocking operation member.

This mechanism for inhibiting spin of the opening and closing operation member of the latch bolt serving also as dead bolt 100 lets a latch 25 advancing and backing in accordance with rotation of the opening and closing operation member 23 function as the dead bolt by restraining its backing by locking rotation operation of the locking-unlocking operation member. This mechanism is provided with a click cam 151 connected with the locking-unlocking operation member to restrain backing of the latch 25 by rotation in the direction of locking, a cam plate 41 fixed on the opening and closing operation member 23, a lock block 181 having a restraining part 181c and pressed by the click cam 151 at an unlocking position to allow the cam plate 41 to rotate, and an energizing means 187 for restraining rotation of the cam plate 41 by arranging the restraining part 181c of the lock block 181 at an interference position with an abutting part 191 by releasing pressing of the lock block 181 by rotating the click cam 151 to a locking position.


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Inventors:
MURAKAMI RYUJI
Application Number:
JP2007000288715
Publication Date:
May 28, 2009
Filing Date:
November 06, 2007
Export Citation:
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Assignee:
MIWA LOCK KK
International Classes:
E05B55/12
Attorney, Agent or Firm:
西村 教光
鈴木 典行