| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic wiper arm lift with a function to be automatically operated by solar heat by preventing adhesion of wiper blades of an automobile to a window glass under the framing sun in summer without manually raising a wiper stand. SOLUTION: Coil springs opposite to each other and respectively formed from a shape memory alloy and stainless steel as raw materials are assembled in a cylinder 7, and when the temperature reaches an optional temperature, a protruding shaft 4 protrudes to make a clearance between the window glass 14 and the wiper blades 6. Alternatively, the protruding shaft 4 is structured to be withdrawn when the temperature lowers to the optional temperature or less. COPYRIGHT: (C)2008,JPO&INPIT
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