# US 10,308,226 B2 · Wiper motor for the cleaning of vehicle windows and windscreen wiper system

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- Number: US 10,308,226 B2
- Document ID: US10308226B2
- Status: Granted
- Kind: B2
- Application number: 15/580,394
- Filed: 2016-05-30
- Published: 2018-06-14
- Granted: 2019-06-04
- Earliest claimed: 2015-06-11
- Assignees: Valeo Wischersysteme GmbH
- Applicants: Valeo Wischersysteme GmbH
- Inventors: Christof Heuberger; Siegfried Stefani; Markus Stubbe
- Web page: https://patentgrep.com/patent/US10308226B2

## CPC

- B60S 1/166: {characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement}
- B60S 1/245: {with particular rod arrangements between the motor driven axle and the wiper arm axle}
- F16H 1/16: comprising worm and worm-wheel
- B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- F16H: GEARING

## Abstract

The invention relates to a wiper motor (10) for the cleaning of vehicle windows, with an output element (17) rotatable about an axis (19), wherein in the output element (17) at a distance (a) the first axis (19) a bearing mount (25) is constructed for a drive lever (30) for driving a wiper shaft (11), wherein the wiper shaft (11) is pivotably mounted in a further axis (16) arranged at least substantially parallel to the axis (19) of the output element (17), and wherein the drive lever (30) is received with an extension (35) in a clamping manner in the bearing mount (25) and extends at least substantially in a plane arranged perpendicularly to the axes (16, 19). According to the invention, it is provided that the extension (35) has a fastening region (36) in the shape of a spherical segment, which cooperates with the bearing mount (25), and that the extension (35) is pivot able about a center point of the fastening region (36).

## Claims

### Claim 1

A wiper motor for the cleaning of vehicle windows, comprising:
an output element rotatable about an axis,
wherein in the output element, at a distance from the axis, a bearing mount is constructed for a drive lever for driving a wiper shaft,
wherein the wiper shaft is pivotably mounted in a further axis arranged at least substantially parallel to the axis of the output element,
wherein the drive lever is received with an extension in a clamping manner in the bearing mount and extends at least substantially in a plane arranged perpendicularly to the axes, and
wherein the extension has a fastening region in the shape of a spherical segment, which cooperates with the bearing mount, and the extension is pivotable about a center point of the fastening region.

### Claim 2 (depends on 1)

The wiper motor according to claim 1, wherein at least the extension and the output element in the region of the bearing mount consist of materials of different hardness.

### Claim 3 (depends on 2)

The wiper motor according to claim 2, wherein the output element is a gear wheel consisting of plastic and that the extension consists of steel.

### Claim 4 (depends on 1)

The wiper motor according to claim 1, wherein the bearing mount is constructed cylindrically.

### Claim 5 (depends on 1)

The wiper motor according to claim 1, wherein the drive lever in an additional axis, which is arranged parallel to the further axis, is pivotably mounted in a lever connected in a torque-proof manner with the wiper shaft.

### Claim 6 (depends on 1)

A windscreen wiper system for a rear window of a motor vehicle with a wiper motor according to claim 1.

### Claim 7 (depends on 1)

The wiper motor according to claim 1, wherein the fastening region of the bearing mount is such that an external diameter of the bearing mount is smaller than an internal diameter of the bearing mount, and wherein the extension has a corresponding shape.

### Claim 8 (depends on 1)

The wiper motor according to claim 1, wherein the motor rotates forward.

### Claim 9 (depends on 1)

The wiper motor according to claim 1, wherein the output element is round.