| 摘要 |
PURPOSE:To return a button automatically, by pressing the button against spring elastic force and moving a slide plate on the slanting surface of the button, engaging the notched part of the slide plate with the recessed part of the button, and disengaging them through a timer. CONSTITUTION:A button 2 is pressed against a spring 5 to move the slide plate 16 on the slanting surface 25 of the button as shown by an arrow A and the opening edge 22a of the notched hole is engaged with the recessed part 26 of the button 26 to hold the button 2 in the pressed state. Then when a button 3 is pressed, its depressed state is held by the engagement between the opening edge 23a of the notched hole and the recessed part 28 of the button 3 and the button 2 is released. When a button 4 is pressed, the slanting surface 30 presses the opening edge 24a of the notched part of the slide plate as shown by the arrow A to return the button 3. The button 3 returns automatically through the operation of the timer a specific time later. Consequently, the button 3 is prevented from being held in the pressed state unreasonably. Inner cables 10 and 14 are connected to a gas burner which is not shown in a figure to prevent the burner suitably from being left turned on forgetfully. |
