| 摘要 |
PURPOSE:To contrive to keep steadily the range from a combustible substance by a method wherein a fitment is formed by a shape memory alloy having two direction memory effect, then the fitment is fixed to a guard. The shape memory alloy is memorized the shape closed to the guard surface at lower temperature side, and the shape protruded toward the outer direction from the guard surface at high temperature side. CONSTITUTION:A guard 4 is fixed on the front surface opening part of a stove main body 1. A U-shaped fitment 5 made of alloy having the shape memory effect to be adhered closely on the guard 4 surface at the normal operational temperature (lower temperature side) is fixed on the guard 4. The fitment 5 is memorized the shape to be protruded in dogleg-shaped manner from the guard 4 surface at the atmosphere temperature of the guard 4 surface at the atmosphere temperature of the guard 4 (high temperature side) in case of the front surface of the guard 4 is shut off. When the stove main body 1 is placed closely to a forward obstacle 6, the temperature of the guard 4 is raised, the temperature of the fitment 5 is also raised. When the temperature of the fitment 5 is raised up to the shape memory temperature, the fitment 5 is protruded forward in dogleg-shaped manner, the range between the stove main body and the obstacle 6 is made larger, accordingly, the temperature rising of the obstacle 6 and the danger due to the stove burning can be prevented. |
