| 摘要 |
PURPOSE:To perform a relatively inexpensive temperature display without using an electrical operating element by utilizing the thermal change of a shaped member to the shape of memory. CONSTITUTION:The rays of light of a halogen heater 4 protruding from a fixed roller 5 are received with an optical fiber 2 at one end of a rod-shaped piece 1. The piece 1 is provided in the vicinity of the roller 5 heated by the heater 4 and the form of the part A of the piece 1 is stored at a prescribed temperature. Then, in the display part 7 of a console panel 9, when the heater 4 is lighted, the rays of light emitted from one end 8 of the piece 1 through the optical fiber 2 look like a red spot state. Accordingly, the spot displays the position of (WAIT) at a time of low temperature but the force to return to the shape of memory is actuated on the piece 1 as the part A approaches the prescribed temperature and the piece 1 moves as shown with a broken line in figure against the force of a spring 6 by pulling the vicinity of the display end of the piece 1 by the spring 6. Then, the display end of the piece 1 moves from the position of (WAIT) to the position of (WAIT UP) and the temperature-up state of the fixed roller 5 is displayed with the display part 7. |
