Wiper linkage system

Patent metadata

Field	Value
Publication number	US-11364877-B2
Application number	US-202016931085-A
Country	US
Kind code	B2
Filing date	Jul 16, 2020
Priority date	Dec 13, 2019
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

A wiper linkage system directly transmits rotating force of a motor to one wiper arm. The wiper linkage system includes: a gear housing installed on a wiper motor, a pipe rod installed on the gear housing, a crank arm installed on an output shaft of the wiper motor, a first wiper arm installed on a first end of the crank arm by a rotating shaft, a pivot housing assembled with the pipe rod, and a second wiper arm operated by a link structure including a link unit coupled to a second end of the crank arm and the pivot housing. In particular, a first end of the pipe rod is fixed to a vehicle body by a pipe mounting.

First claim

What is claimed is:

1. A wiper linkage system, consisting of:
a gear housing installed on a wiper motor;
a pipe rod installed on the gear housing;
a crank arm directly coupled to an output shaft of the wiper motor;
a first wiper arm installed on a first end of the crank arm by a rotating shaft;
a pivot housing coupled to the pipe rod; and
a second wiper arm operated by a link structure including a link unit coupled to a second end of the crank arm and the pivot housing,
wherein a first end of the pipe rod is fixed to a vehicle body by a pipe mounting, and
wherein the rotating shaft is positioned below a window glass of a vehicle and an arm head part of the first wiper arm is covered by a bonnet of the vehicle during operation.

2. The wiper linkage system of claim 1 , wherein the first wiper arm is rotated by a rotating force that is directly transmitted from the wiper motor, and the link structure further includes a link member configured to connect the link unit to the pivot housing such that the second wiper arm is operated through the pivot housing.

3. The wiper linkage system of claim 1 , wherein the pivot housing is coupled to a second end of the pipe rod.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Dy Auto Corp

Inventors

• Gwon Su-Hak
• Kim Il-Soo
• Hong Seong-Jin
• Choi Jung-Kwan

Classifications

• B60S1/3409

  the wiper arms consisting of two or more articulated elements · CPC title

• B60S1/26 Primary

  by toothed gearing · CPC title

• B60S1/08

  electrically driven {(conjoint control of windscreen wiper motor and liquid supply of windscreen washer B60S1/482; conjoint control of windscreen wiper motor and means for cleaning parts o parts other than windscreens or front windows B60S1/56, B60S1/58, B60S1/606)} · CPC title

• B60S1/3459 Primary

  the element being a mounting head and a shaft · CPC title

• B60S1/245 Primary

  with particular rod arrangements between the motor driven axle and the wiper arm axle · CPC title