Title:
THUMB-TURN PROTECTION DEVICE
Document Type and Number:
Japanese Patent JP2004225241
Kind Code:
A
Abstract:
To provide a thumb-turn protection device capable of preventing the illegal operation from the outside to a thumb-turn.
The thumb-turn protection device is constituted of a cylinder section 3 fixed to a door body 1 and surrounding the perimeter of the thumb-turn 2 posed to the surface of the door body 1 and a cap body 4 closing the front open end of the cylinder section 3 in an openable manner.
Inventors:
KOBOSOZAWA MIYUKI
Application Number:
JP2002379604A
Publication Date:
August 12, 2004
Filing Date:
December 27, 2002
Export Citation:
Assignee:
ALPHA CORP
International Classes:
E05B13/00; (IPC1-7): E05B13/00
Attorney, Agent or Firm:
Masao Yamakawa