| 摘要 |
<p>A slide variable resistor (1) wherein an adjusting joint (11) is fitted into an operating rod (2) by a relatively great frictional force is mounted on a refrigerator body (30). When a closed refrigerator door (31) has pushed the operating rod (2) to its stroke end through the joint (11), it presses the operating rod (2) further, the position into which the joint (11) is fitted is automatically changed. Accordingly, when the refrigerator door (31) has pushed in the operating rod (2) and reached its terminal position, the operating rod reaches its stroke end without fail. This effect can be attained without adjusting the door opening/closing sensor to individual units of a product while mounting it on them. Besides, the stroke of the operating rod is always kept constant. <IMAGE></p> |
