Wiper blade for motor vehicle windows with support having connection device with projections and welding connection

• US 6,397,428 B2
• Filed: 01/26/2001
• Issued: 06/04/2002
• Est. Priority Date: 05/02/1997
• Status: Expired due to Term

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Kotlarski, Thomas
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US09/771,290
• Publication Number:
  US 20010004783A1
• Time in Patent Office: 494 Days
• Field of Search: 152/504.3, 152/504.4, 152/503.61, 152/503.2, 152/503.1, 152/504.51, 152/504.52, 152/504.53, 152/504.54
• US Class Current: 15/250.43
• 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 1/3855 by welding, gluing or the like
• CPC Class Codes: B60S 1/3858 with protrusions cooperating with holes
• CPC Class Codes: B60S 1/3867 pin formed on the interior of side walls
• CPC Class Codes: B60S 1/4006 for arms provided with a hook-shaped end

Abstract

A wiper blade for motor vehicle windows has an elongated spring-elastic support element, an elongated, rubber elastic wiper strip which is pressable against a window to be wiped and is held substantially parallel to a longitudinal axis by the elongated, spring-elastic support element, a connection device for a driven wiper arm, the connection device being loaded toward the window and secured to a middle portion of the spring-elastic support element, remote from the window, the connection device being formed as a component which is separate from the support element, and a welding connection which connects the connection device with the support element, the support element being band-shaped, the connection device having a base resting flatly on a side remote from the window of the band-shaped support element and connected to the band-shaped supporting element by the welding connection.

Claims

1. A wiper blade for motor vehicle windows, comprising an elongated spring-elastic support element;

an elongated, rubber elastic wiper strip which is pressable against a window to be wiped and is held by said elongated, spring-elastic support element;

a connection device for a driven wiper arm, said connection device being loadable toward the window and secured to a middle portion of said spring-elastic support element, at a side remote from the window, said connection device being formed as a component which is separate from said support element, rests flatly on a side remote from the window of said band-shaped support element and is connected to said band-shaped supporting element by a welding connection said connection device having protrusions which are provided with claw shaped attachments pointing in opposite directions from one another, so that a spacing between an outside of said connection device is adapted to a thickness of said support element, the welding connection being arranged on said claw shaped attachments.

2. A wiper blade as defined in claim 1, wherein said connection device has a pivot pin for connecting of said connection device with a driven wiper arm.

3. A wiper blade as defined in claim 1, wherein said welding connection of said connection device and said band-shaped support element is provided in one point.

4. A wiper blade as defined in claim 1, wherein said welding connection of said connection device and said band-shaped support element is provided in one strip.

5. A wiper blade as defined in claim 1, wherein said welding connection is composed of a plurality of point shaped welding points.

6. A wiper blade as defined in claim 5, wherein said strips have free ends remote from said base of said connection device.

7. A wiper blade for motor vehicle windows, comprising an elongated spring-elastic support element;

an elongated, rubber elastic wiper strip which is pressable against a window to be wiped and is held substantially parallel to a longitudinal axis by said elongated, spring-elastic support element;

a connection device for a driven wiper arm, said connection device being loadable toward the window and secured to a middle portion of said spring-elastic support element, at a side remote from the window, said connection device being formed as a component which is separate from said support element; and

a welding connection which connects said connection device with said support element, said support element being band-shaped, said connection device having a base resting flatly on a side remote from the window of said band-shaped support element and is connected to said band-shaped supporting element by said a welding connection said connection device having also legs joined by the base, said base on its side remote from said legs being provided with protrusions which are spaced from one another crosswise to a longitudinal extent of said support element by a distance which is adapted to a width of said support element, said protrusions being formed as strips which extend longitudinally of said support element.