Title:
LOCK DEVICE FOR DOOR
Document Type and Number:
Japanese Patent JP2620198
Kind Code:
B2
Abstract:
PURPOSE: To facilitate pull-off of a cylinder lock from a lock handle when a trouble occurs by a method wherein a pull-off preventing means is attached to the outer cylinder part of the cylinder lock.
CONSTITUTION: A spring-form pull-off preventing member 40 is fitted in an engaging state in the outer peripheral wall of a cylinder 31 and the pull-off preventing member 40 and the cylinder lock 31 are assembled in a fit-in hole 24 of a lock handle 21. In this case, the outer end part side 40b of the pull-off preventing member 40 is protruded to the outside of an insertion drum part 22 of the lock handle 21 by utilizing a first notch groove 42a. By pushing up the externally protruding outer end part side 40b to the upper side of a second notch groove 42b by fingers, the inside diameter of an annular part 40c is expanded. In which case, the cylinder lock 31 is inserted in the pull-off preventing member 40 and the finger are released from the outer end part side 40b, the annular part is contracted through the return force of the pull-off preventing member 40, and the annular part 40c is engaged in a close adhesion state with a lock groove 32b of the cylinder lock 31.
Inventors:
Yoshihiro Kawasato
Application Number:
JP7956894A
Publication Date:
June 11, 1997
Filing Date:
March 24, 1994
Export Citation:
Assignee:
Miwa Lock Co., Ltd.
International Classes:
E05B5/00; E05B9/08; E05B13/10; E05B65/02; (IPC1-7): E05B13/10; E05B5/00; E05B9/08; E05B65/02
Attorney, Agent or Firm:
Mitsuyasu Miura