| 摘要 |
PURPOSE:To improve safety, by installing an air tube in a window frame, while detecting its contact with the tube internal pressure variation, and constituting the closing motion of a door so as to be prohibited, in case of a power window or the like for a vehicle. CONSTITUTION:During closing motion of a glass pane 2, a solenoid control part 10 operates, and its normally opened contact X1a is closed, closing an air hole 25, and an air tube 7 is made into airtightness, while the glass pane 2 is closed. At this time, if a human body or the like is sandwiched between the glass pane 2 and a frame 4, this air tube is compressed and thereby internal pressure goes up. This pressure-up is detected by a pressure sensor 11. This detecting signal is inputted into a differentiator and a comparator and whether there is contact or not is judged. When the presence of contact is the case, contact point of the solenoid control part 10 is selected via a control circuit, making a door into its opening motion. With this constitution, safety is improved.
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