Wiping device, in particular wiping device for a motor vehicle pane

• US 9,758,132 B2
• Filed: 05/21/2012
• Issued: 09/12/2017
• Est. Priority Date: 06/28/2011
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Bex, Koen, Depondt, Helmut, Herinckx, Dirk
• Primary Examiner(s): GRAHAM, GARY K
• Application Number:
  US14/130,290
• Publication Number:
  US 20140130287A1
• Time in Patent Office: 1,940 Days
• Field of Search: 15250201, 1525043
• CPC Class Codes: B29C 48/022 characterised by the choice of material
• CPC Class Codes: B29C 48/12 Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
• CPC Class Codes: B60S 1/381 Spoilers mounted on the squeegee or on the vertebra
• CPC Class Codes: B60S 1/3848 Flat-type wiper blade, i.e. without harness
• CPC Class Codes: B60S 1/3881 in additional element, e.g. spoiler
• CPC Class Codes: B60S 1/3882 C-shape section

Abstract

The invention relates to a wiping device, in particular a wiping device for a motor vehicle pane, comprising a spoiler unit (22a-22p). According to the invention, said spoiler unit (22a-22p) is produced in a co-extrusion process.

Claims

1. A wiping device, with a spoiler unit (22a-22p) produced in a co-extrusion process, wherein the spoiler unit (22a-22p) has two separate harder spoiler part elements (34a-34p) separated from one another by an open gap along a wiping direction (88a) and a softer spoiler part element (32a-32p) coupled to each of the two harder spoiler part elements (34a-34p), and wherein each of the harder spoiler part elements (34a-34p) conceals a respective portion of the softer spoiler part element (32a-32p) along the wiping direction (88a-88p), so that the harder spoiler part elements (34a-34p) protect the softer spoiler part element from damage on opposite sides of the softer spoiler part element along the wiping direction (88a-88p), and further comprising a separate holding element (12a-12p) coupled to the spoiler unit (22d-22p), wherein the holding element (12a-12p) includes a longitudinal guide channel (14a) sized to receive a spring element (16a-16p) along a longitudinal direction, wherein the longitudinal guide channel (14a) is spatially offset from the open gap, such that the entire spoiler unit (22a-22p) is spaced above the longitudinal guide channel (14a) along a vertical direction (102a) that is perpendicular to both the longitudinal direction and the wiping direction (88a), wherein the wiping device further includes a spring element (16a-16p) disposed in the longitudinal guide channel (14a-14p), wherein the entire spring element (16a-16p) is spaced below the spoiler unit (22a-22p) along the vertical direction (102a), and wherein the wiping device further includes a wiper blade connected to the holding element on a side of the holding element opposite the spoiler unit.

2. The wiping device as claimed in claim 1, characterized in that the softer spoiler part element (32a-32i;

32n) has a longitudinal channel (82a-82i;

82n) with a triangular cross section.

3. The wiping device as claimed in claim 1, characterized in that the softer spoiler part element (32b;

32c) and the harder spoiler element (34b;

34c) are joined together by material fit over a wide area in a plane (86b;

86c) which runs parallel to a wiping direction (88b-88c).

4. The wiping device as claimed in claim 1, characterized in that the spoiler unit (22d-22h;

22n) lies at least partly laterally on the holding element (12d-12h;

12n) in a region of the longitudinal guide channel (14d-14h;

14n).

8. The wiping device as claimed in claim 1, wherein a plane extends along the wiping direction (88a-88p), wherein the plane passes through one of the harder spoiler part elements (34a-34p), then through the softer spoiler part element (32a-32p), and then through the other harder spoiler part element (34a-34p) moving along the wiping direction (88a-88p).

9. The wiping device as claimed in claim 8, wherein the spoiler unit (22a-22p) is symmetrical about an axis (102a-102p) that is perpendicular to the plane.

10. The wiping device as claimed in claim 1, wherein the wiping direction (88a-88p) extends through a portion of each of the harder spoiler part element (34a-34p) and the softer spoiler part element (32a-32p).

11. The wiping device as claimed in claim 1, wherein the holding element (12a-12p) includes side walls (52a, 54a) and channel walls (36a, 38a) that extend perpendicular to the side walls (52a, 54a), wherein the side walls (52a, 54a) and the channel walls (36a, 38a) define boundaries of the longitudinal guide channel (14a) and are configured to guide the spring element (16a-16p) in the longitudinal guide channel (14a).

12. The wiping device as claimed in claim 11, wherein the holding element (12a-12p) includes two L-shaped fixing elements (18a, 20a) that extend from the channel walls (36a, 38a), wherein portions of the fixing elements (18a, 20a) are received in the spoiler unit (22a-22p).

5. The wiping device as claimed in 1, wherein the spoiler unit (22a-22p) is symmetrical about an axis (102a-102p) that extends perpendicular to the wiping direction.

6. The wiping device as claimed in claim 5, wherein interfaces between the harder spoiler part elements (34a-34p) and the softer spoiler part element (32a-32p) define planes that extend at oblique angles relative to the wiping direction.

7. The wiping device as claimed in claim 6, wherein the planes form a “

V”

-shape.