Wiper blade for the glass surfaces of motor vehicles with an elongated, spring-elastic support element

• US 6,675,434 B1
• Filed: 02/16/2001
• Issued: 01/13/2004
• Est. Priority Date: 01/23/1998
• Status: Expired due to Term

• Current Assignee: Hitachi, Ltd., Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Wilhelm, Manfred, Mazurkiewicz, Julius, Kotlarski, Thomas
• Primary Examiner(s): Till, Terrence R.
• Application Number:
  US09/763,070
• Time in Patent Office: 1,061 Days
• Field of Search: 152/504.3, 152/504.4, 152/504.51, 152/504.52, 152/504.53, 152/504.54
• US Class Current: 15/250.454
• 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 1/3889 cooperating with holes in the vertebra
• CPC Class Codes: B60S 2001/382 the backing strip being an essentially planar reinforcing strip, e.g. vertebra
• CPC Class Codes: B60S 2001/3822 characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips

Abstract

In a wiper blade (10) a termination part (26 or 126 or 232 or 326) which covers each end of the wiper blade (10) has a base body (28), located on the side remote from the window (18) and bracing itself on the wiper blade (16, 20) which base body is provided with hook-like extensions (30 or 330) that cross the support element (126) on both of its long sides and engage the side of the support element toward the window from behind; if at least one detent shoulder (36 or 132) pointing toward the other end portion is disposed oh each of the two end portions of the support element, and a counterpart shoulder (38 or 134) present on the termination part is associated with the detent shoulders; and if furthermore at least one of the two shoulders and/or at least one of the two extensions is elastically deflectable.

Claims

1. A wiper blade (10) for windows or other glass of motor vehicles, having an elongated, spring-elastic support element (16), on whose side toward the window or glass an elongated, rubber-elastic wiper strip (20) that can be placed against the window or glass is located parallel to the longitudinal axis, and on the side of the support element remote from the window or glass, in the middle portion of the support element, a device for attaching a driven wiper arm is disposed, the two ends of the wiper blade (10) each being covered by a respective termination part (26) in the region of the support element (16), characterized in that the termination part (26) has a base body (28), located on the side of the support element (16) remote from the window (18) and bracing itself on the wiper blade (16, 20), which base body is provided with hook-like extensions (30 or 330) that cross the support element (16) on both of its long sides and engage the side of the support element (16) toward the window from behind;

that at least one detent shoulder (36 or 132) pointing toward the other end portion is disposed on each of the two end portions of the support element, and a counterpart shoulder (38 or 134) present on the termination part (26 or 126) is associated with the detent shoulder; and

that at least one of the two shoulders (36, 132, 38, 134) and/or at least one of the two extensions (30) is elastically deflectable.

2. The wiper blade of claim 1, characterized in that the support element (16) is embodied as a one-piece spring band, on one band face of which, toward the window, the wiper strip (20) is secured, and from the other band face of which, remote from the window, the detent shoulder (36) protrudes.

3. The wiper blade of claim 2, characterized in that on the side of the termination part base body (28) toward the support element (16), a throat (42) is disposed, on which the counterpart shoulder (38) of the termination part (26) is embodied.

4. The wiper blade of claim 1, characterized in that cavities (46) for receiving protrusions (44) protruding from the long sides of the support element are disposed in the hook legs (32), crossing the support element (16), of the hook-like extensions (30) of the termination part (26).

5. The wiper blade of claim 1, characterized in that the support element (16) is embodied as a one-piece spring band, on one band face of which, toward the window (18), the wiper strip (20) is secured, and that the detent shoulder (132) is embodied on at least one of the two long sides of the support element.

6. The wiper blade of claim 5, characterized in that the counterpart shoulder (134) is embodied on the legs (32) of the hook-like extensions of the termination part (26) that cross the support element (16).

7. The wiper blade of claim 5, characterized in that the detent shoulder (132) is embodied on a detent tooth (130) that protrudes from the long side of the support element.

8. The wiper blade of claim 5, characterized in that a recess (140) for receiving a protrusion (142) protruding from the face end of the support element is disposed on the inside wall, covering the face end (17) of the support element (16), of the termination part (26).

9. The wiper blade of claim 1, characterized in that the hook-like extensions (330) that cross the support element and engage the side of the support element (16) toward the window from behind are each joined by a respective film hinge (332) to the base body (28) of the termination part (326).

10. The wiper blade of claim 9, characterized in that the wiper strip (320), on both of its long sides, has a respective longitudinal groove (322), the inside of which is engaged by the claw legs, oriented toward one another and disposed on the hook legs, of the termination part.

11. The wiper blade of claim 1, characterized in that the support element (216) has two elongated, spring-elastic retaining rails (218), which are each disposed in one longitudinal groove (222) extending along both long sides of the wiper strip;

that the retaining rails (218) protrude with their long edges remote from one another out of their longitudinal grooves (222) of the wiper strip (220); and

that the detent shoulder (230) is embodied on at least one of these two long edges.

12. The wiper blade of claim 11, characterized in that the counterpart shoulder of the termination part that are associated with the detent shoulder (230) of the retaining rails (218) are disposed on the hook-like extensions (32, 34) that cross the support element (216) having the two retaining rails.

13. The wiper blade of claim 1, characterized in that the termination part (26 or 126 or 232 or 326) is made from an elastic plastic.