Wiping device for a detection system

Patent metadata

Field	Value
Publication number	US-12134373-B2
Application number	US-202117797574-A
Country	US
Kind code	B2
Filing date	Jan 11, 2021
Priority date	Feb 7, 2020
Publication date	Nov 5, 2024
Grant date	Nov 5, 2024

Abstract

The present invention relates to a wiping device for a detection system of a vehicle, including a wiper blade, a wiper arm, a motor unit and a drive unit. The drive unit includes a guidance block which carries the wiper arm, and which is inserted in a guidance frame, and a plurality of belt wheels. At least one drive belt wheel is driven in a rotational motion by the motor unit. The drive unit further includes a belt which is driven by the belt wheels and moves the guidance block according to a rectilinear motion.

First claim

What is claimed is:

1. A wiping device for a detection system of a vehicle, comprising a wiper blade, a wiper arm, a motor unit and a drive unit, the drive unit including a guidance block which carries the wiper arm, and which is inserted in and extending through opposite sides of a C-shaped guidance frame, the drive unit further including a plurality of belt wheels, at least one drive belt wheel is driven in a rotational motion by the motor unit, wherein the drive unit includes a belt which is driven by the belt wheels and moves the guidance block according to a rectilinear motion.

2. The wiping device according to claim 1 , further comprising two driven belt wheels which are arranged on each endpoint of the guidance frame.

3. The wiping device according to claim 2 , wherein at least one driven belt wheel is carried by a belt wheel support arranged on the guidance frame.

4. The wiping device according to claim 2 , wherein the belt is a toothed belt, the drive belt wheel and the driven belt wheels being toothed belt wheels to interact with the belt.

5. The wiping device according to claim 1 , wherein the guidance frame includes a guidance slot where the guidance block is inserted in a sliding manner.

6. The wiping device according to claim 1 , wherein the guidance block comprises a first attachment for the wiper arm, and a second attachment for the belt.

7. The wiping device according to claim 6 , wherein the first attachment of the guidance block is passing through an opening of the guidance frame.

8. The wiping device according to claim 6 , wherein the second attachment comprises a cavity where the belt is inserted in, and a fixing cover that comprises complementary forms with the belt.

9. The wiping device according to claim 1 , wherein the motor unit includes a motor and a gearbox, the motor comprising a motor shaft which moves according to a unidirectional rotational motion, the gearbox being driven by the motor shaft and driving the drive belt wheel according to a reversible rotational motion.

10. The wiping device according to claim 9 , wherein a motor axis of rotation is perpendicular to a drive belt wheel axis of rotation.

11. A detection system for a vehicle, comprising a sensor and a wiping device, the wiping device including a wiper blade, a wiper arm, a motor unit and a drive unit, the drive unit including a guidance block which carries the wiper arm, and which is inserted in and extending through opposite sides of a C-shaped guidance frame, the drive unit further including a plurality of belt wheels, at least one drive belt wheel is driven in a rotational motion by the motor unit, wherein the drive unit includes a belt which is driven by the belt wheels and moves the guidance block according to a rectilinear motion.

12. The detection system according to claim 11 , further comprising a windscreen configured to be placed in front of the sensor of the detection system.

13. The detection system according to claim 12 , wherein the windscreen includes a cleaning area which is wiped by the wiper blade, a length of the cleaning area depends on a diameter of the drive belt wheel and a rotation angle of the drive belt wheel.

Assignees

• Valeo Systemes Dessuyage

Inventors

• Stefani Siegfried

Classifications

• G02B27/0006

  with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation (G02B1/18 takes precedence; cleaning in general B08B) · CPC title

• G01S7/4813

  Housing arrangements · CPC title

• B60S1/3404

  the wiper blades being moved substantially parallel with themselves · CPC title

• B60S1/20

  by cable drives; by flexible shafts · CPC title

• G01S17/931

  of land vehicles · CPC title