Cleaning devices for vehicles, cleaning system for vehicles, and control method for cleaning system for vehicles

Patent metadata

Field	Value
Publication number	US-11590937-B2
Application number	US-201917052966-A
Country	US
Kind code	B2
Filing date	May 30, 2019
Priority date	Jun 26, 2018
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A vehicle cleaning device removes an extraneous object collected on a cleaning subject of a vehicle. The vehicle cleaning device includes: a cleaning liquid supply device mounted on the vehicle; and a wiper device including a wiper driver and a wiper blade. The wiper driver includes a linear movement portion that produces a linear movement based on supply of a cleaning liquid that is pressure-fed from the cleaning liquid supply device, and a movement converter that converts the linear movement into a pivoting movement. The wiper blade is arranged to be contactable with the cleaning subject. The wiper device is configured to cause the wiper blade to perform a reciprocal wiping operation based on the pivoting movement of the movement converter.

First claim

The invention claimed is:

1. A vehicle cleaning device that removes an extraneous object collected on a cleaning subject of a vehicle, the vehicle cleaning device comprising:
a cleaning liquid supply device mounted on the vehicle; and
a wiper device including a wiper driver and a wiper blade that is arranged to be contactable with the cleaning subject, wherein:
the wiper driver includes
a linear movement portion that produces a linear movement based on supply of a cleaning liquid that is pressure-fed from the cleaning liquid supply device, and
a movement converter that converts the linear movement into a pivoting movement, the movement converter and the linear movement portion being arranged beside each other at a pivot point of the wiper blade;

the wiper device is configured to cause the wiper blade to perform a reciprocal wiping operation based on the pivoting movement of the movement converter;
the linear movement portion includes:
a piston that receives a pressure of the cleaning liquid that is pressure-fed from the cleaning liquid supply device and performs linear movement, and
a shaft member that is coupled to the piston (i) for linear movement with the piston and (ii) to be rotatable relative to the piston; and

the movement converter includes
a conversion member that converts the linear movement of the shaft member into a rotation movement of the shaft member, and
a drive member that is coupled to the wiper blade and is rotatable integrally with the shaft member.

2. The vehicle cleaning device according to claim 1 , wherein
the linear movement portion includes an urging spring and is configured to perform a reciprocal linear movement,
the linear movement to one side is performed to accumulate urging force in the urging spring based on the supply of the cleaning liquid, and
the linear movement to the other side is performed by receiving urging force accumulated in the urging spring based on a stopping of the supply of the cleaning liquid.

3. The vehicle cleaning device according to claim 1 , further comprising:
an ejection nozzle that ejects and supplies the cleaning liquid, which is pressure-fed from the cleaning liquid supply device, to the cleaning subject.

4. The vehicle cleaning device according to claim 3 , further comprising:
a switch that switches the supply of the cleaning liquid pressure-fed from the cleaning liquid supply device to the ejection nozzle or to the wiper driver.

5. The vehicle cleaning device according to claim 3 , wherein the ejection nozzle is located at a vertically lower side of the wiper blade.

6. The vehicle cleaning device according to claim 1 , wherein the cleaning subject of the vehicle includes a sensing surface of a ranging sensor mounted on the vehicle.

7. The vehicle cleaning device according to claim 2 , wherein
the urging spring is located between the drive member and the shaft member.

8. The vehicle cleaning device according to claim 1 , wherein
the drive member is coupled to the shaft member to be linearly movable and integrally rotatable.

Assignees

• Denso Corp

Inventors

• Yamauchi Yuusuke
• Aoyama Takahiro

Classifications

• B60S1/482

  combined with the operation of windscreen wipers · CPC title

• B08B3/02

  Cleaning by the force of jets or sprays · CPC title

• B60S1/481

  the operation of at least part of the liquid supply being controlled by electric means (electrical washing liquid warming-up means B60S1/488) · CPC title

• B08B13/00

  Accessories or details of general applicability for machines or apparatus for cleaning · CPC title

• B60S1/06

  characterised by the drive (producing other than swinging movement B60S1/44) · CPC title