METHOD FOR MANUFACTURING A WINDSHIELD WIPER BLADE

• US 20090158545A1
• Filed: 06/11/2007
• Published: 06/25/2009
• Est. Priority Date: 06/14/2006
• Status: Active Grant

• Current Assignee: Valeo Systemes D'Essuyage (Valeo SE)
• Original Assignee: Valeo Systemes D'Essuyage (Valeo SE)
• Inventors: Grasso, Guiseppe, Ollier, Nicolas
• Granted Patent: US 8,631,537 B2
• Time in Patent Office: Days
• US Class Current: 15/250.1
• CPC Class Codes: B60S 1/38 Wiper blades provided with liquid spreading means B60S1/524; provided with gas spreading means B60S1/546
• CPC Class Codes: B60S 1/381 Spoilers mounted on the squeegee or on the vertebra
• CPC Class Codes: B60S 1/3863 Connectors having a spoiler
• CPC Class Codes: B60S 1/3877 embedded in the squeegee
• CPC Class Codes: B60S 1/3881 in additional element, e.g. spoiler
• CPC Class Codes: B60S 2001/3822 characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips
• CPC Class Codes: Y10T 29/4998 Combined manufacture including applying or shaping of fluent material

Abstract

The invention relates to a method of manufacturing a windscreen-wiper blade for a motor vehicle, the blade comprising at least one mounting element in which a housing and an attachment rail are arranged parallel to the longitudinal axis of said mounting element, an elastically deformable spine arranged inside said housing of the mounting element, and a wiping strip, comprising a heel interlocked inside said rail of the mounting element, the method comprising a step of hot deformation of at least one longitudinal end of the mounting element, so as to immobilise said spine and said wiping strip longitudinally inside said housing and said rail of the mounting element respectively.

Claims

1. A method of manufacturing a windscreen-wiper blade for a motor vehicle, the blade comprising:

at least one mounting element in a longitudinal direction in which a housing and an attachment rail are arranged parallel to the longitudinal axis of said mounting element,

an elastically deformable spine arranged inside said housing of the mounting element, and

a wiping strip, comprising a heel interlocked inside said rail of the mounting element, wherein the method comprises;

hot deformation of at least one longitudinal end of the mounting element so as to longitudinally immobilise said spine and said wiping strip, respectively inside said housing and said rail of the mounting element.

2. The method according to claim 1, wherein the hot deformation consists of deformation by melting said longitudinal end, preferably by ultrasonic sealing, contact fusion or hot air blowing.

3. The method according to claim 1, wherein the hot deformation consists of deformation by adding material to said longitudinal end preferably by thermoplastic welding.

4. The method according to claim 1, wherein, prior to the hot-deformation, the method comprises:

cutting said longitudinal end of the mounting element, so as to obtain a protruding longitudinal end, after melting said longitudinal end.

5. The method according to claim 4, wherein the longitudinal end is cut according to a cutting plane forming an acute angle with the bottom horizontal surface of the mounting element.

6. The method according to claim 5, wherein said acute angle is substantially equal to 70°

.

7. The method according to claim 1, wherein in addition to the hot-deformation, th method further comprises:

shaping the hot-deformed longitudinal end.

8. A windscreen-wiper blade for a motor vehicle, obtained using the method according to claim 1, wherein the windscreen-wiper blade comprises at least one hot-deformed longitudinal end.