Fixing device for a windscreen wiper system

• US 7,024,722 B2
• Filed: 09/26/2001
• Issued: 04/11/2006
• Est. Priority Date: 10/23/2000
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Neubauer, Achim, Moench, Jochen, Sponar, Heiko, Kalchschmidt, Peter
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US10/149,809
• Publication Number:
  US 20030074761A1
• Time in Patent Office: 1,658 Days
• Field of Search: 152/503, 152/503.1, 296/96.17, 296/96.15, 403/268, 403/265, 156/307.3, 156/91, 156/307.1, 156/60, 294/28
• US Class Current: 15/250.31
• CPC Class Codes: B60S 1/0422 having a separate transverse element
• CPC Class Codes: B60S 1/0433 Attachement of a wiper modular assembly to the vehicle
• CPC Class Codes: B60S 1/0441 characterised by the attachment means
• CPC Class Codes: B60S 1/0447 non-screw fixation, (e.g. snap-in, bayonnet-type..)
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 403/47 Molded joint
• CPC Class Codes: Y10T 403/473 Socket or open cup for bonding material

Abstract

The invention concerns a fastening for a windshield wiper system on a vehicle body, in particular for motor vehicles, whereby the windshield wiper system is composed of a premanufactured assembly having at least one fastening site arranged on it. It is provided that the at least one fastening site of the windshield wiper system (32) is bonded in each case with a fastening site arranged accordingly on the vehicle body (10).

Claims

1. A fastening for a windshield wiper system on a vehicle body, in particular for motor vehicles, whereby the windshield wiper system comprises a premanufactured assembly having at least one fastening site arranged on it,

wherein the at least one fastening site of the windshield wiper system (32) is bonded in each case with a fastening site arranged accordingly on the vehicle body (10),

wherein a first fastening site (16) formed as fixed bearing comprises a half ball (26) and a matching spherical cup (24) having a positive connection with each other, whereby the fastening site of the windshield wiper system (10) is preferably designed as spherical cup (24), and the attachment site on the vehicle body (10) is designed as half ball (26).

2. The fastening according to claim 1, wherein the windshield wiper system (32) has three fastening sites which are spaced from one another and include the first fastening site (16) between the windshield wiper system (32) and the vehicle body (10) as fixed bearing without a corresponding compensation of tolerance, a second fastening site (18) having a single-axis compensation of tolerance, and a third fastening site (20) having a two-axis, planar compensation of tolerance.

3. The fastening according to claim 2, wherein the third fastening site (20) having a two-axis, planar compensation of tolerance is designed as a flat surface.

4. The fastening according to claim 1, wherein the first fastening site (16) designed as fixed bearing on the vehicle body (10) is situated as close as possible to a wiper shaft (34) of a driver-side wiper arm, a second fastening site (18) on the vehicle body (10) designed with a single-axis compensation of tolerance is situated as close as possible to the wiper shaft (34) of a passenger-side wiper arm, and a third fastening site (20) designed with a two-axis, planar compensation of tolerance is situated as close as possible to the vehicle body (10) in a region of a engine suspension.

5. The fastening according to claim 1, wherein the fastening sites (16;

18;

20) for the windshield wiper system (32) are arranged on the vehicle body (10) in such a fashion that they form the largest possible triangle of forces as viewed in one plane.

6. The fastening according to claim 1, wherein at least one spacer is arranged between respective fastening sites (16;

18;

20) of the windshield wiper system (32) and the vehicle body (10) to obtain a predetermined layer thickness of bonding agent.

7. The fastening according to claim 6, wherein the spacer is composed of a vibration-damping material.

8. The fastening according to claim 1, wherein a high-viscosity bonding agent is used.

9. The fastening according to claim 8, wherein the bonding agent is applied in such a thickness between the respective fastening sites (16;

18;

20) of the windshield wiper system (32) and the vehicle body (10) that the windshield wiper system (32) and the vehicle body (10) are separated from each other in terms of vibrational behavior.

10. The fastening according to claim 1, wherein a bonding agent is applied between the respective fastening sites (15;

18;

20) of the windshield wiper system (32) and the vehicle body (10) is a rubber-elastic, polyurethane-based, single-component bonding agent.

11. The fastening according to claim 1, wherein a bonding agent is applied preferably to the respective fastening sites (16;

18;

20) of the windshield wiper system (32).

12. The fastening according to claim 11, wherein the bonding agent comprises a high viscosity in a processing state at processing temperature, its film-forming time is less than 20 minutes, and it comprises a high initial firmness and, after hardening, a hardness of approximately 60 shore (A).

13. The fastening according to claim 11, wherein the bonding agent is resistant to water, oil, surfactants, alcohol, ozone, salt and ageing.

14. The fastening according to claim 11, wherein the bonding agent is elastic and vibration-damping after it hardens.

15. The fastening according to claim 11, wherein the bonding agent is silicone-free, environmentally compatible, and not harmful to health.

16. The fastening according to claim 1, wherein bondings between the respective fastening sites (16;

18;

20) of the windshield wiper system (32) and the vehicle body (10) are separable.

17. The fastening according to claim 16, wherein the bondings are separable by means of a vibrating knife with 90°

offset blade.

18. The fastening according to claim 17, wherein a renewed adhesive bonding can take place on a bonding separated by means of a vibrating knife.

19. The fastening according to claim 1, wherein a layer of a bonding agent is situated between respective surfaces of the fastening sites in such a fashion that there is no contact between components of the windshield wiper system (32) and the vehicle body (10).

20. The fastening according to claim 1, wherein the windshield wiper system (32) is a wiper system for a front and/or rear window, and/or a headlamp and/or a mirror surface.

21. A fastening for a windshield wiper system on a vehicle body, in particular for motor vehicles, whereby the windshield wiper system comprises a premanufactured assembly having at least one fastening site arranged on it, wherein the at least one fastening site of the windshield wiper system (32) is bonded in each case with a fastening site arranged accordingly on the vehicle body (10),

wherein a second fastening site (18) designed with a single-axis compensation of tolerance comprises a U-shaped structural part (28) having one downwardly open side and a correspondingly designed, U-shaped matching part (30) engaged in a positive connection with each other, whereby the fastening site of the windshield wiper system (32) is designed preferably as a U-shaped formed part (28) having one downwardly open side, and the attachment site on the vehicle body (10) is designed as a U-shaped matching piece (30).