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Patent Searching and Data


Title:
LOCKOUT PREVENTING DEVICE FOR THUMB-TURN LOCK OF INTERIOR DOOR
Document Type and Number:
Japanese Patent JP2004204660
Kind Code:
A
Abstract:

To prevent a lockout situation when closing an interior door.

In this lockout preventing device for a thumb-turn lock of the interior door, an operating rod is disposed in a horizontally retreating manner in a lock case behind a latch, and a release constituent member for a thumb-turn tumbler having a lever engaged with the operating rod is built in. When the latch abuts on the edge of a door frame and retreats in closing the interior door, the release constituent member separates a driving arm of the thumb-turn tumbler from a locking piece in cooperation with the retreating movement of the operating rod. The locking piece for a latch cam thereby moves in a direction of releasing engagement by the spring force of a return spring.


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Inventors:
KINOSHITA TAKUO
Application Number:
JP2003000050915
Publication Date:
July 22, 2004
Filing Date:
February 27, 2003
Export Citation:
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Assignee:
MIWA LOCK KK
International Classes:
E05B55/16; E05B65/06; (IPC1-7): E05B55/16; E05B65/06
Attorney, Agent or Firm:
三浦 光康