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Patent Searching and Data


Title:
AUTOMATIC UNLOCKING MECHANISM FOR LATCH
Document Type and Number:
Japanese Patent JP2003074245
Kind Code:
A
Abstract:

To automatically release (unlock), using a simple mechanism and rational means and the driving force of a driving source, a locking member which locks a latch, even in the case of a lock with a latch device, such as a push-pull lock.

This automatic unlocking mechanism for a latch includes the driving source 15 disposed within a lockbox 3; an arm-shaped control member 20 connected to an actuating rod 17 of the driving source via a pivotal shaft 26 and journaled to a horizontal shaft 27 stretched across the lockbox; an engagement member 30 journaled to the horizontal shaft 27 and having both an engaged part 35 for engagement with a tip 23 of the control member 20 and a locking part 34 for locking the latch 6 for temporary locking; and an energizing spring 39 for energizing the engagement member 30 at all times in the direction to engage the latch 6.


Inventors:
TABATA HIROSHI
Application Number:
JP2001000271453
Publication Date:
March 12, 2003
Filing Date:
September 07, 2001
Export Citation:
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Assignee:
MIWA LOCK KK
International Classes:
E05C3/16; E05B47/00; E05B55/02; (IPC1-7): E05C3/16; E05B47/00; E05B55/02
Attorney, Agent or Firm:
三浦 光康