| 摘要 |
<p>PURPOSE: To eliminate a limit of a tolerance on manufacture without needing a special assembling space by inserting an electronic optical indication element in the locking button of a closing device, in the door locking display device of a theft preventing device. CONSTITUTION: A locking button 1 is provided with an end part, formed of a transparent material 4, on the opposite side to a screw hole 2 for screw fastening the locking button to an automobile by a locking rod 3. Further, an electronic optical converter 5, for example, a light emitting diode is arranged thereat. The electronic optical converter 5 is connected through a set of electric conductors 6 and 7 from the lower part of the locking button 1 to an energy feed source 8 having an electric plug 10 fixed at the internal part of an automobile door by a bolt 9. When a closing device is locked, electrical connection to the energy feed source 8 is continued, and the electronic optical converter 5 is lighted ON to illuminate a material 4. This constitution eliminates a need for special disposing space.</p> |
