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Title:
ADAPTER FOR CASE LOCK, AND CASE LOCK
Document Type and Number:
Japanese Patent JP2011006939
Kind Code:
A
Abstract:

To provide an adapter for a case lock, and a case lock which are compatible with a locking/unlocking shaft having a square, cross-shaped or rectangular cross section, while eliminating the risk of idling upon rotation of the locking/unlocking shaft.

The adapter having a tube shape fitted into a fitting hole formed in a lock cam of the case lock provided with the lock cam for locking and unlocking by rotation includes an insertion hole formed by a square hole and rectangular holes overlapping with each other. Each of the rectangular holes includes a diagonal line of the square hole as the center line, projects outward from each corner of the square, and has a locking/unlocking shaft abutting face height l1. A projection which forms a rectangular hole, having a locking/unlocking shaft abutting face height l2 larger than the locking/unlocking shaft abutting face height l1, is formed on an inner wall of a deep side of the insertion hole. A downward slope surface toward the opening is formed on each of both opening sides of the projection. A tube body having the projection formed is deflected in the direction perpendicular to the direction of the insertion when the locking/unlocking shaft having the square cross section is inserted.


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Inventors:
HIRANO FUMIISA
Application Number:
JP2009152015A
Publication Date:
January 13, 2011
Filing Date:
June 26, 2009
Export Citation:
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Assignee:
KAWAJUN CO LTD
International Classes:
E05B3/08; E05B65/06; E05B55/12; E05B65/10
Domestic Patent References:
JP2004092091A2004-03-25
JP2006077459A2006-03-23
Attorney, Agent or Firm:
Kenji Akatsuka
Yasuo Fukuda
Yasuyuki Sakata