| 摘要 |
A heated windshield wiper blade construction includes the use of a pair of integrally attached electrical heating elements which are in parallel alignment and which extend substantially through the entire axial length of a flexible wiper blade. One of the core members is of a triangularly shaped cross-sectional area which lessens relative rotational movement between the core member and the associated wiper blade. The triangular core member further includes a plurality of outwardly extending, arched branch members which operate to provide a spring-like engagement between the wiper blade and an associated support arm, while at the same time completing the electrical heating circuit. The second core member is of a circular cross-sectional area and is of a heavier and thicker construction than the triangularly shaped core member so as to reduce the electrical resistance and the consequent heating within this core member.
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