JPS6260U

JPS6260U -

Info

Publication number: JPS6260U
Application number: JP9200785U
Authority: JP
Priority date: 1985-06-18
Filing date: 1985-06-18
Publication date: 1987-01-06

Description

[Brief explanation of drawings]

第１図は本考案の一実施例であるワイパ装置を
示す模式図、第２図、第３図および第４図はその
作用を説明するための各模式図、第５図は楕円軌
道を作るためのワイパ駆動装置の一実施例を示す
正面図、第６図は第５図の―線に沿う断面図
である。１……ワイパ装置、２……ワイパ駆動装置、３
……クランクアーム、４……リンク機構、５……
ワイパアーム、６……ワイパブレード、７……ハ
ウジング、８……本体、９……蓋体、１０……回
転軸、１１……第１ウオーム、１２……第２ウオ
ーム、１３……カムシヤフト、１４……支軸、１
５……第１ウオームホイール、１６……第２ウオ
ームホイール、１７……第１ギヤ、１８……第２
ギヤ、１９……クランクシヤフト、２０……ドラ
イブアーム、２１……ピン、２２……スライド溝
、２３……スライダ、２４……ボールジヨイント
（駆動力伝達点）、２５……ロツド、２６……レ
バー、２７……ワイパシヤフト、２８……楕円軌
道、２８ａ，２８ｂ……楕円軌道上の短辺対応点
、２９ａ，２９ｂ……ワイパアームの反転位置。 Fig. 1 is a schematic diagram showing a wiper device which is an embodiment of the present invention, Figs. 2, 3 and 4 are schematic diagrams for explaining its operation, and Fig. 5 shows how to create an elliptical orbit. FIG. 6 is a front view showing an embodiment of a wiper drive device for use in the present invention, and FIG. 6 is a sectional view taken along the line -- in FIG. 1... Wiper device, 2... Wiper drive device, 3
...Crank arm, 4...Link mechanism, 5...
Wiper arm, 6... Wiper blade, 7... Housing, 8... Main body, 9... Lid, 10... Rotating shaft, 11... First worm, 12... Second worm, 13... Camshaft, 14 ...Spindle, 1
5...First worm wheel, 16...Second worm wheel, 17...First gear, 18...Second worm wheel
Gear, 19... Crankshaft, 20... Drive arm, 21... Pin, 22... Slide groove, 23... Slider, 24... Ball joint (driving force transmission point), 25... Rod, 26... ... lever, 27 ... wiper shaft, 28 ... elliptical orbit, 28a, 28b ... short side corresponding points on the elliptical orbit, 29a, 29b ... inverted position of wiper arm.

Claims

[Claims for Utility Model Registration] (1) A crank arm is rotated by a wiper drive device, and the rotation of the crank arm is transmitted to the wiper arm via a link mechanism, so that the wiper arm reciprocates. In the wiper device configured so that the reversal speed at the end of the reciprocating rotation of the wiper arm is low, the turning locus of the driving force transmission point in the crank arm is configured to be an elliptical orbit. Features of wiper device. (2) The wiper drive device includes a camshaft and a crankshaft which is eccentrically supported by the camshaft so as to be freely rotatable and has a crank arm fixed thereto, and during one rotation of the crankshaft, The wiper device according to claim 1, wherein the camshaft is configured to rotate once in the opposite direction.