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Patent Searching and Data


Title:
LOCK FOR INDOOR DOOR
Document Type and Number:
Japanese Patent JP2004156338
Kind Code:
A
Abstract:

To make incorporable a plurality of devices into a space in a lock box by effectively utilizing the space in the lock box.

In this lock for indoor door, an operation rod frame part is formed in the rear of a latch frame part of the lock box. An operation rod of a latch and the operation rod are arranged in this operation rod frame part, and these operation rod and operation rod are energized in the projecting direction of the latch by a latch spring. A latch pulling-back device X having an intermediary slider for engaging with a latch cam and a latch pulling-back rocking arm for interlocking with the intermediary slider are incorporated into an upper space of the lock box with the latch spring as a reference. While, a shutout preventive device Y of a thumb-turn lock having a release lever and a slider for cooperating with the release lever and engaging with a thumb-turn top joint is incorporated into a lower space of the lock box. A lock piece is movably arranged in an excess space part of the lock box, and this lock piece is arranged so as to be engageable with and disengageable from the latch cam and the thumb-turn top joint, and is always energized in the engaging-releasing direction by a return spring.


Inventors:
KINOSHITA TAKUO
Application Number:
JP2002000323827
Publication Date:
June 03, 2004
Filing Date:
November 07, 2002
Export Citation:
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Assignee:
MIWA LOCK KK
International Classes:
E05B55/04; E05B65/06; (IPC1-7): E05B55/04; E05B65/06
Attorney, Agent or Firm:
三浦 光康