| 摘要 |
<p>PURPOSE: To remodel a regular fastening lock into an electronic lock by inputting a code by rotatably operating an operation knob, actuating a switch on a printed circuit board, and moving the regular fastening bolt up to a door releasing position. CONSTITUTION: When rotatably operating an operation knob 14 at a prescribed angle, a selected code number is displayed on a liquid crystal display device 20. Next, a code display is selected through a window 43, and the knob 14 is pushed inward so that an individual code signal is inputted. Next, an electric contact point is closed by a circuit of a printed circuit board 21 so that a solenoid 53 is excited. A column part 52 is pulled in the solenoid 53 to release rotational restriction of a disk 45. When rotating the knob 14 further by 180 degrees, a regular fastening bolt 13 is moved to a door releasing position.</p> |
