# US 2013/0152322 A1 · Window wiping device comprising means for limitation of a curvature acquired by a flexible washing liquid feed tube

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- Number: US 2013/0152322 A1
- Document ID: US20130152322A1
- Status: Published application
- Kind: A1
- Application number: 13/718,074
- Filed: 2012-12-18
- Published: 2013-06-20
- Earliest claimed: 2011-12-19
- Assignees: Valeo Systèmes d'Essuyage
- Inventors: Jean-Michel Jarasson
- Web page: https://patentgrep.com/patent/US20130152322A1

## CPC

- B60S 1/524: {arranged in wiper blades}
- B60S 1/3409: {the wiper arms consisting of two or more articulated elements}
- B60S 1/3415: {with means for supplying cleaning fluid to windscreen cleaners, e.g. washers (arrangement of nozzles B60S1/52)}
- B60S 1/522: {moving liquid spreading means, e.g. arranged in wiper arms}
- B60S 1/488: {electrically}
- B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR

## Abstract

Window wiping device for a motor vehicle comprising at least one link (2, 3), a mobile arm (6) adapted to be mounted on the vehicle by said link (2, 3) and effect an angular to-and-fro movement (A), a flexible washing liquid feed tube (16), rigidly fastened to said mobile arm (6), which device is characterized in that it further comprises a means (20) for limitation of a curvature assumed by said flexible feed tube (16) configured to surround the flexible feed tube (16) so as to prevent it cracking.

## Claims

### Claim 1

A window wiping device for a motor vehicle comprising:
at least one link;
a mobile arm driven in rotation by said at least one link to effect an angular to-and-fro movement;
a flexible washing liquid feed tube, rigidly fastened to said mobile arm; and
means for limitation of a curvature assumed by said flexible feed tube configured to surround the flexible feed tube so as to prevent cracking.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the limitation means surrounds a most curved portion of the feed tube.

### Claim 3 (depends on 2)

The device according to claim 2, wherein the limitation means is formed of an elongate element around the feeder flexible tube and is deformable transversely to its length.

### Claim 4 (depends on 3)

The device according to claim 3, wherein the elongate element has two ends, one of said ends being fixed to an element of the mobile arm.

### Claim 5 (depends on 4)

The device according to claim 4, wherein the mobile arm comprises a main element and a driver connected to the at least one link said driver connecting the mobile arm to a pivot shaft of said mobile arm, and wherein one end of the elongate element is fixed to one of said main element or to said driver.

### Claim 6 (depends on 3)

The device according to claim 3, wherein the elongate element has two ends, one end of the elongate element being fixed to a first link of the at least one link.

### Claim 7 (depends on 1)

The device according to claim 1, wherein the elongate element is extensible.

### Claim 8 (depends on 7)

The device according to claim 7, wherein the elongate element comprises turns so as to feature a plurality of spaces between the turns when the is curved.

### Claim 9 (depends on 3)

The device according to claim 3 wherein the elongate element of is a coil spring.

### Claim 10 (depends on 1)

The device according to claim 1, wherein the feed tube comprises at least one pipe surrounded by the limitation means.

### Claim 11 (depends on 1)

The device according to claim 1, wherein the feed tube comprises two pipes surrounded by the limitation means.

### Claim 12 (depends on 1)

The device according to claim 1, wherein the feed tube comprises heating means embedded in the material constituting the tube or installed in the pipe or pipes.