| 摘要 |
PURPOSE:To ensure and stabilize the wiper blade motion exclusively by the rotary motion, which allows rise-up motion to shift the blade to a position, where the driver's vision is not obstructed, when the wiper is turned off. CONSTITUTION:One end of a motor arm 61 is fixed to a motor shaft 2, while on the other end, a link shaft 14 is mounted. To the link shaft 14, a primary cam 19 and a secondary cam 20 are closely fitted together in a layer letting a groove 19a and a projection 20a fit loosely. The shaft 14 is also fitted with an eccentric plate 23 and an eccentric metal 71, which revolve jointly with a retainer 27, fitted with a connecting rod 15. Between the metal 71 and the retainer 27, a friction spring 25 is mounted, which enables the metal 71 and the retainer 27 to revolve relatively only immediately after the start and immediately before the encasement and stop of the wiper blade motion. |
