Windscreen wiper adapter with safety position

Patent metadata

Field	Value
Publication number	US-10077025-B2
Application number	US-201214235363-A
Country	US
Kind code	B2
Filing date	Jul 27, 2012
Priority date	Jul 27, 2011
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

The invention relates to an adapter ( 9 ) for connecting a windscreen wiper blade ( 1 ) to a drive arm ( 3 ) of a wiper system, said adapter ( 9 ) being configured to be connected to a connector ( 8 ) with a degree of freedom in pivoting about an axis of articulation, said connector ( 8 ) being fixed to the blade ( 1 ), said adapter ( 9 ) comprising means for keeping in a nominal position of immobilization on the arm, said adapter ( 9 ) being configured to be immobilized, in a direction known as the direction of retraction, situated in a plane perpendicular to the axis of articulation, in a safety position, should said retaining means ( 20 ) fail. According to the invention, the adapter ( 9 ) is configured to be guided by the arm ( 3 ) in a translational movement, in said direction of retraction, from said nominal position to said safety position and/or to have a direction of deliberate disengagement from the arm starting from a position located between the two, nominal and safety positions. The invention also relates to an attachment device and to a wiper system comprising such an adapter.

First claim

The invention claimed is:

1. A wiper system comprising:
a driving arm;
an adapter for connecting a wiper blade to the driving arm of the wiper system, said adapter being configured to be connected to a connector with a degree of freedom in pivoting about a pivot pin, said adapter comprising:
maintaining means for maintaining a nominal position of blockage on the driving arm, said adapter being configured to be blocked, in a direction referred to as the direction of withdrawal, situated in a plane perpendicular to the pivot pin, in a position of safety in the event of failure of said maintaining means;
at least one lateral flange delimited by at least one exterior wall configured to guide the driving arm in translation, in said direction of withdrawal, and a rear wall situated set back from said exterior wall, a safety stop for said position of safety extending laterally outward from said rear wall; and
a ramp for disengaging the arm connecting said exterior wall and said rear wall, the safety stop being situated a distance from an end of the ramp in the direction of withdrawal,
wherein the nominal position is distinct from the position of safety; and

an attachment device comprising the connector and the adapter articulated to said connector.

2. The wiper system as claimed in claim 1 , wherein the distance separating said ramp from said safety stop is comprised between 0.5 and 3 cm.

3. The wiper system as claimed in claim 1 , wherein the adapter further comprises at least one lower edge situated substantially level with said exterior wall, said disengagement ramp extending from a low point situated level with said lower edge of the adapter, the distance separating said low point from said safety stop being comprised between 1.5 and 4 cm.

4. The wiper system as claimed in claim 1 , wherein the safety stop is situated at a rear end of said rear wall.

5. The wiper system as claimed in claim 1 , wherein the adapter further comprises a front face and a rear face which are opposite one another each comprising a slot for the passage of a deflector of the blade.

6. The wiper system as claimed in claim 5 , wherein the adapter further comprises a second safety stop, the slot borne by the rear face of said adapter extending in a direction concurrent with a plane which comprises the two safety stops of the adapter and which is substantially perpendicular to said direction of withdrawal.

7. The wiper system as claimed in claim 1 , wherein said maintaining means consist of a flexible stud provided on an upper face of said adapter, said flexible stud comprising an upper face and a front face, said upper face and front face of said flexible stud being connected by a sharp edge.

8. The wiper system as claimed in claim 7 , said flexible stud comprising a rear face opposite to its front face and connected to its upper face by means able to make it easier to introduce a yoke of the driving arm.

9. The wiper system as claimed in claim 1 , wherein the adapter is able to collaborate with the driving arm comprising means of translational guidance on the adapter in said direction of withdrawal, said means of translational guidance coming into contact with the safety stop, said means of translational guidance, in said direction of withdrawal, also serving when mounting the driving arm on the adapter and/or contributing to holding the driving arm on the adapter during the transition from the nominal position to the position of safety.

10. The wiper system as claimed in claim 1 , wherein a yoke of the driving arm comprises lateral faces and guideways provided at said lateral faces, said guideways being formed respectively by a single bend of said lateral faces of the driving arm, each guideway extending toward the inside of the driving arm at an angle substantially equal to 90° with respect to said lateral faces.

11. The wiper system as claimed in claim 10 , wherein the driving arm is configured to be connected to the adapter, the adapter comprising two lower edges, in which arm said guideways are able to hold said driving arm on the adapter in the vertical direction, said guideways covering only a surface of said lower edges.

12. The wiper system as claimed in claim 11 , wherein said guideways have a length less than a distance separating a low point situated level with said lower edge of the adapter from said safety stop.

13. An adapter for connecting a wiper blade to a driving arm of a wiper system, said adapter being configured to be connected to a connector with a degree of freedom in pivoting about a pivot pin, said adapter comprising:
maintaining means for maintaining a nominal position of blockage on the arm, said adapter being configured to be blocked, in a direction referred to as the direction of withdrawal, situated in a plane perpendicular to the pivot pin, in a position of safety in the event of failure of said maintaining means;
at least one lateral flange delimited by at least one exterior wall configured to guide the arm in translation, in said direction of withdrawal, and a rear wall situated set back from said exterior wall, a safety stop for said position of safety extending laterally outward from said rear wall;
a ramp for disengaging the arm connecting said exterior wall and said rear wall, the safety stop being situated a distance from an end of the ramp in the direction of withdrawal,
wherein the nominal position is distinct from the position of safety;
a front face and a rear face which are opposite one another each comprising a slot for the passage of a deflector of the blade; and
a second safety stop, the slot borne by the rear face of said adapter extending in a direction concurrent with a plane which comprises the two safety stops of the adapter and which is substantially perpendicular to said direction of withdrawal.

Assignees

• Bousset Xavier
• Grasso Giuseppe
• Valeo Systemes Dessuyage

Inventors

• Bousset Xavier
• Grasso Giuseppe

Classifications

• B60S1/3868 Primary

  pin formed on the exterior of side walls · CPC title

• B60S1/4048

  the element being provided with retention means co-operating with the channel-shaped end of the arm · CPC title

• B60S2001/4054

  the intermediate element engaging the back part of the arm · CPC title

• B60S2001/4051

  the intermediate element engaging the side walls of the arm · CPC title

• B60S1/3863

  Connectors having a spoiler · CPC title