| 摘要 |
PROBLEM TO BE SOLVED: To provide a link built-in rear wiper with a rise-up function. SOLUTION: This link built-in rear wiper has a connecting rod 21 one end of which is connected to a worm wheel 14 meshing with a worm 18 rotated in the normal and reverse directions by a motor, with the other end connected to a free end of a lever 20 fixed to a wiper shaft 19. A wiping angle switching device 30 is provided in a connecting part between the connecting rod 21 and the worm wheel 14 within the thickness of the worm wheel 14. The wiping angle switching device 30 is formed by a joint pin 43 disposed in the center line of rotation of the connecting rod 21, an eccentric bush 37 rotatably engaged with the joint pin 43, a cam ring 33 butted to the eccentric bush 37 to regulate the turning range, and springs 32, 46 for holding the turning positions of the eccentric bush 37 and the cam ring 33. Thus, the rise-up function can be secured while securing the performance and durability of the motor.
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