Title:
キー及びディスク・タンブラ型シリンダ錠
Document Type and Number:
Japanese Patent JP2009541616
Kind Code:
A
Abstract:
The invention relates to a disc tumbler cylinder lock and a key for it. The key according to the invention comprises a groove that is transverse to the key shank. The groove comprises a bottom section and side sections that are transverse to the bottom section between the bottom section and the outer surface of the key shank. The bottom section of the groove is the key's main driving surface used to transfer turning force to the disc tumbler cylinder lock. This reduces wear on the O-surfaces of the key because the O-surfaces do not transfer the majority or any of the key turning force to the disc tumbler cylinder lock.
Inventors:
Martin Kainen, Carlo
Application Number:
JP2009515902A
Publication Date:
November 26, 2009
Filing Date:
June 11, 2007
Export Citation:
Assignee:
Abreu salmon yukichu
International Classes:
E05B19/08; E05B29/00
Domestic Patent References:
| JPS49133196A | 1974-12-20 | |||
| JPS5344298A | 1978-04-20 | |||
| JPS5646073A | 1981-04-27 | |||
| JPH06346639A | 1994-12-20 |
Foreign References:
| DE4404137A1 | 1995-08-10 |
Attorney, Agent or Firm:
Asamura patent office
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Toru Mori
Katsunori Shirae
Tadashi Tanaka
Ken Kanai
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Toru Mori
Katsunori Shirae
Tadashi Tanaka
Ken Kanai