JPH0230758U

JPH0230758U -

Info

Publication number: JPH0230758U
Application number: JP10962888U
Authority: JP
Priority date: 1988-08-23
Filing date: 1988-08-23
Publication date: 1990-02-27
Anticipated expiration: 2003-08-23
Also published as: JPH086642Y2

Description

[Brief explanation of drawings]

第１図は本考案の防音構造の一実施例を備えた
押圧力可変ワイパの断面図である。第２図は上記
実施例における合成樹脂製ケースの２面図、第３
図はその−断面図である。第４図は前記実施
例における蓋の２面図である。第５図は公知例の
押圧力可変ワイパの断面図、第６図はその要部拡
大図である。１……ピボツトシヤフト、２……アームヘツド
、３……アーム軸、４……ワイパアーム、５……
スプリング、７……Ｌ字形レバー、１０……モー
タ、１１……減速機、１１ａ……減速歯車群、１
２……出力軸、１３……ネジ手段、１４……カバ
ー、１５……合成樹脂製ケース、１５ａ……底部
、１５ｂ……筒状部、１５ｃ……輪形の突条、１
６……蓋、１６ａ……短筒状部、１６ｂ，１６ｃ
……輪形の突条。 FIG. 1 is a sectional view of a variable pressing force wiper equipped with an embodiment of the soundproof structure of the present invention. Figure 2 is a two-sided view of the synthetic resin case in the above embodiment;
The figure is a sectional view thereof. FIG. 4 is a two-sided view of the lid in the embodiment. FIG. 5 is a cross-sectional view of a known variable pressing force wiper, and FIG. 6 is an enlarged view of its main parts. 1... Pivot shaft, 2... Arm head, 3... Arm shaft, 4... Wiper arm, 5...
Spring, 7... L-shaped lever, 10... Motor, 11... Reduction gear, 11a... Reduction gear group, 1
2... Output shaft, 13... Screw means, 14... Cover, 15... Synthetic resin case, 15a... Bottom, 15b... Cylindrical part, 15c... Annular protrusion, 1
6... Lid, 16a... Short cylindrical part, 16b, 16c
...A ring-shaped protrusion.

Claims

[Claim for Utility Model Registration] A wiper arm is pivotally attached to the tip of an arm head that is attached to a pivot shaft and rotates back and forth, and the other end of a coil spring, whose one end is attached to the wiper arm, is attached to one end of an L-shaped lever. The L-shaped lever is pivoted near the tip of the arm head, and a motor housed in the arm head rotates the L-shaped lever via a reduction gear and screw means to engage the coil spring. A variable pressing force wiper having a structure in which a landing point is moved includes: a cylindrical synthetic resin case with a bottom and no top that covers the motor and the reduction gear; a synthetic resin lid that covers the open end of the case; a small-diameter short cylindrical part integrally molded to penetrate through the lid; a ring-shaped protrusion integrally connected to the outer periphery of the short cylindrical part; a ring-shaped protrusion that surrounds and is integrally continuous with the cylindrical case; and a ring-shaped protrusion that is integrally continuous with the outer periphery of the bottomed and topless cylindrical case near the bottom; The lid is fixed to the case with the output shaft of the reduction gear passing through the short cylindrical part, and the synthetic resin is attached to the hollow part provided in the arm head and the cover covering the hollow part. A soundproof structure for a variable pressing force wiper, characterized in that the case made of synthetic resin and the cover made of synthetic resin are in line contact via the protrusion mentioned above.