Wiper device for motor vehicle panes

• US 6,625,842 B1
• Filed: 06/28/2001
• Issued: 09/30/2003
• Est. Priority Date: 10/28/1999
• Status: Expired due to Term

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: De Block, Peter
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US09/869,500
• Time in Patent Office: 824 Days
• Field of Search: 152/503.2, 152/503.1, 152/504.4, 152/504.3
• US Class Current: 15/250.32
• CPC Class Codes: B60S 1/3849 Connectors therefor; Connection to wiper arm; Attached to blade
• CPC Class Codes: B60S 1/4038 for arms provided with a channel-shaped end
• CPC Class Codes: B60S 1/4041 the channel-shaped end comprising a pivot pin mounted between the side walls
• CPC Class Codes: B60S 1/4048 the element being provided with retention means co-operating with the channel-shaped end of the arm

Abstract

The invention relates to a wiper apparatus (10) for motor vehicle windows, having a driven wiper arm (12), guided on one end on the motor vehicle, to the free end of which arm an elongated wiper blade (14) that can be pressed with a wiper strip (18) against the window is separably connected via a connection device (16) which toward the arm has a pivot bolt (40), whose hinge axis extends substantially transversely to the longitudinal direction of the wiper blade (14) in the working direction (double-headed arrow 42) of the wiper apparatus (10) and which on the side toward the wiper blade, in a middle portion of the wiper blade (14) on its side remote from the window (20), has a coupling part (34) with a bearing recess (48) for the pivot bolt (40), which can be introduced into the recess (48) via a mounting channel (60) that opens the bearing recess toward the side remote from the window (20), wherein the wiper blade (14) is provided with securing means, which are movable between a mounting position and a locking position to open and close the mounting channel (50). Simple, unproblematic disconnection of the wiper blade from the wiper arm and connection of the wiper blade to the wiper arm are attached if as the securing means, a pivot lever (66) which is movable between the two operating positions is supported on the coupling part (34), which pivot lever, in its mounting position, uncovers the mounting channel (50) and in its locking position closes the mounting channel (50).

Claims

1. A wiper apparatus (10) for a motor vehicle window, having a driven wiper arm (12), guided on a motor vehicle, wherein an elongated wiper blade (14) that can be pressed with a wiper strip (18) against the window is separably connected via a connection device to a free end of the arm, wherein the connection device has a pivot bolt (40) on the arm, wherein a hinge axis of said pivot bolt (40) extends substantially transversely to a longitudinal direction of the wiper blade (14) in a working direction of the wiper apparatus (10) and which on a side toward the wiper blade, in a middle portion of the wiper blade (14) on a side of the wiper blade (14) remote from the window (20), has a coupling part (34) with a bearing recess (48) for the pivot bolt (40), wherein said pivot bolt can be introduced into the recess (48) via a mounting channel (50) that opens the bearing recess toward the side remote from the window (20), wherein the wiper blade (14) is provided with securing means, wherein said securing means are movable between a mounting position and a locking position to open and close the mounting channel (50), characterized in that as the securing means, a pivot lever (66) which is movable between two operating positions is supported on the coupling part (34), wherein said pivot lever, in a mounting position, uncovers the mounting channel (50) and in a locking position closes the mounting channel (50), and wherein the connection device (16) for locking the pivot lever (66) in the locking position is provided with a barrier element (38), wherein said barrier element (38) is arranged on the wiper arm.

2. The wiper apparatus of claim 1, characterized in that the wiper arm (12) has a U-shaped cross section on its free end, and that each of two ends of the pivot bolt (40) is retained on one of two legs (36) of the U.

3. The wiper apparatus of claim 2, characterized in that a base of the U (38) joining the two legs (36) of the U is located on an end of the legs (36) of the U remote from the wiper blade (14) and ends at a distance from the pivot bolt (40).

4. The wiper apparatus of claim 2, characterized in that a width (52) of the coupling part (34), measured transversely to the longitudinal direction of the wiper blade (14), is adapted to a spacing distance (35) between the two legs (36) of the U on the free end of the wiper arm (12).

5. The wiper apparatus of claim 1, characterized in that a pivot lever bearing point (62) on the coupling part is disposed toward a guided end of the wiper arm (12) at a distance from the bearing recess (48) for the pivot bolt (40), and that the pivot axis of the pivot lever (66) is oriented at least approximately parallel to the hinge axis.

6. The wiper apparatus of claim 5, characterized in that a base of the U (38) of the free end of the wiper arm (12) extends past the pivot lever bearing point (62) and ends between said bearing point and a hinge axis of the bearing recess (48).

7. The wiper apparatus of claim 1, characterized in that the pivot lever (66) in its locking position protrudes with an extension (70) into the mounting channel (50) and in a region thereof continues a jacket face of the recess (48).

8. The wiper apparatus of claim 1, characterized in that the pivot lever (66) is provided with a stop (86, 87), wherein said stop in a pivot lever operating position cooperates with a counterpart stop (88) of the coupling part (34).

9. The wiper apparatus of claim 1, characterized in that the coupling part (34) is located on a band face, remote from the window (20) of an elongated, spring-elastic support element (32), wherein the wiper strip is disposed on the band face toward the window.

10. The wiper apparatus of claim 9, characterized in that the coupling part (34) at least in some portions engages two longitudinal side edges of the support element (32) in the manner of a claw.

11. The wiper apparatus of claim 1, characterized in that the coupling part (34) is made of a plastic.

12. The wiper apparatus of claim 1, characterized in that the pivot lever (66) is made of a plastic.