JPH0451853U

JPH0451853U -

Info

Publication number: JPH0451853U
Application number: JP9582790U
Authority: JP
Priority date: 1990-09-11
Filing date: 1990-09-11
Publication date: 1992-04-30

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る格納式ワイパ
装置の通常払拭動作時における要部平面図、第２
図はその格納動作時における要部平面図、第３図
はその縦断面図、第４図はその分解斜視図、第５
図Ａは同一角位置にあるカムの斜視図、第５図Ｂ
および第５図Ｃはカム体の平面図、第６図Ａはず
れ角位置にあるカムの斜視図、第６図Ｂおよび第
６図Ｃはカム体の平面図、第７図Ａ，Ｂ〜第１２
図Ａ，Ｂはワイパ払拭作動説明図、第１３図Ａ，
Ｂ〜第１７図Ａ，Ｂは格納作動説明図、第１８図
、第１９図は、本実施例のストツパ屈曲動作およ
びその構成の説明図、第２０図は従来の格納式ワ
イパ装置を示す平面図、第２１図はその作動状態
を示す説明図である。１０……減速出力軸、１２……第１クランク、
１４……第２クランク、１６，１８……リンク、
２０……ワイパブレード、２２……ストツパ、２
４……第１のカム体、２６……第２のカム体、３
４，３６……凹部、４２……連結軸、４４……連
結軸の中心、４６……減速出力軸の連結中心、４
８……リンクの連結中心、５０……中心線。 FIG. 1 is a plan view of main parts of a retractable wiper device according to an embodiment of the present invention during normal wiping operation, and FIG.
The figure is a plan view of the main part during storage operation, Figure 3 is a vertical sectional view, Figure 4 is an exploded perspective view, and Figure 5 is a perspective view of the main part.
Figure A is a perspective view of the cam in the same angular position, Figure 5B
FIG. 5C is a plan view of the cam body, FIG. 6A is a perspective view of the cam in the off-angle position, FIGS. 6B and 6C are plan views of the cam body, and FIGS. 12
Figures A and B are explanatory diagrams of wiper wiping operation, Figure 13 A,
B~17A and B are explanatory diagrams of the retracting operation, FIGS. 18 and 19 are explanatory diagrams of the stopper bending operation of this embodiment and its configuration, and FIG. 20 is a plan view showing a conventional retractable wiper device. 21 are explanatory diagrams showing the operating state thereof. 10... Deceleration output shaft, 12... First crank,
14...Second crank, 16,18...Link,
20... Wiper blade, 22... Stopper, 2
4...First cam body, 26... Second cam body, 3
4, 36... Recessed portion, 42... Connection shaft, 44... Center of connection shaft, 46... Connection center of deceleration output shaft, 4
8... Link connection center, 50... Center line.

Claims

[Claims for Utility Model Registration] A first crank connected to the deceleration output shaft of the motor, and a linkage is maintained at a predetermined bending angle with respect to the first crank during normal rotation, and with respect to the first crank during reverse rotation. a second crank rotatably supported by the first crank, and a second crank slidably supported by the second crank, with the first and second cranks bent so that the linkage is maintained in a substantially extended state a stopper that fits into a recess provided in the first crank corresponding to each angular position to hold the second crank at each angular position when the angular position or the extended angular position is reached; a link that is rotatably connected to the crank and transmits the motion of the second crank to the wiper blade; and a link that is fixed to the second crank connecting end of the link and rotates, and its rotational position makes it relative to the recess of the stopper. a first cam body that performs restraint and release of restraint; and a first cam body that rotates in conjunction with the first cam body with a predetermined play angle, and the rotation restrains the stopper in a phase different from that of the first cam body. and a second cam body which can release the inhibition and inhibits the stopper by cooperating with the first cam body when the first crank rotates in the forward direction, the first and second cam bodies when the motor rotates in the reverse direction. The movement angle of the second crank from the bent state to the extended state can be set to a small value. A retractable wiper device characterized in that it is provided offset in the direction of normal rotation of the motor from a centerline position connecting the centers.