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Wiper linkage

A connecting rod mechanism and wiper technology, which is applied in the direction of mechanical equipment, vehicle cleaning, vehicle maintenance, etc., can solve the problems that the advantages cannot be brought into play

Inactive Publication Date: 2012-10-31
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This high internal force and the unfavorable ratio between the length of the window wiper arm and the swing length make the wiper system sensitive to external disturbances, which can lead to chattering of the window wiper arm and thus a rotational speed The advantages of the flip-type system of the control action cannot be used

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] figure 1A schematic diagram showing the arrangement of a synchronously operating wiper system with a known wiper linkage for a window washing system of a motor vehicle, the wiper linkage having a motor crank 10. The motor crank is connected to the drive motor through a connecting element 12 in the form of an output shaft. The motor crank 10 is here connected at a first end section 14 to a connecting element 12 . At a second end section 16 opposite the first end section 14, the motor crank has a figure 2 and image 3 The double ball stud 18 shown in , at which the figure 2 and image 3 The first hinge lever 20 and the second hinge lever 22 are not shown. A window wiper arm 24 designed for the passenger side of the motor vehicle is arranged on the first hinge lever 20 and a second hinge lever 22 is connected to a window wiper arm 26 arranged on the driver's side of the motor vehicle . This known synchronously operating wiper system has a window wiper arm 24 for t...

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PUM

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Abstract

A wiper linkage of a windscreen washing system for a motor vehicle, comprising a motor crank (10) with a first end section (14) and a second end section (16), wherein the motor crank (10) is connected at its first end section (14) to a drive motor via a connecting element (12), and wherein the motor crank (10) has, at its second end section (16), a double ball pin (18) which is connected to a first joint rod (20) and to a second joint rod (22), wherein by means of a rotational movement of the motor crank (10) a first crank radius (28) can be transmitted to the first joint rod (20) and a second crank radius (34) can be transmitted to the second joint rod (22), wherein according to the invention the first crank radius (28) of the first joint rod (20) has a different size from the second crank radius (34) of the second joint rod (22).

Description

technical field [0001] The invention relates to a wiper linkage for a window washing device of a motor vehicle. Background technique [0002] The wiper linkage usually has a motor crank which is connected to an output shaft of a drive motor, in particular a wiper motor, via which output shaft the motor crank is driven by the drive motor. On the motor crank there is usually a ball stud or a double ball stud, in the case of a double ball stud, where the first hinge lever for the first window wiper and the Second hinge lever for second window wiper. In this way, two synchronously operating windshield wiper arms are realized, which act on the driver's side and the front passenger's side, respectively. In order to achieve the lowest possible force at the hinge lever, the motor crank usually has a relatively large length. This results in a large radius of the crank path of the motor crank, which, together with the generally small ratio of crank radius to connecting rod length o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60S1/24
CPCB60S1/24B60S1/163Y10T74/18232
Inventor J·齐默尔
Owner ROBERT BOSCH GMBH