| 摘要 |
PURPOSE:To allow lock back for a fully concealed type by dividing a support into two, fitting them rotatably each other, tilting the rotary sliding faces of individual supports against a drive shaft, and providing stopper mechanisms fixing them to individual supports. CONSTITUTION:During the normal use, a stopper pin 70 is coupled with the coupling groove 52 of the second support 5, and the first and second supports 4, 5 are fixed. Individual supports 4, 5 and an arm 2 are reciprocally rotated via a drive shaft 10 to wipe the surface of a front glass 3. On the other hand, at the time of lock back, a knob 71 is moved against a spring 72, and the stopper pin 70 is pulled off from the coupling groove 52. The second support 5 and an arm 2 are rotated against the first support 4 in the (d) direction using a rivet 6 as an axis, the slant rotary sliding face 50 of the second support 5 is rotatively slidden on the slant rotary sliding face 40 of the first support 4 and floated from the surface of the front glass 3 by avoiding a bonnet 30. |
