Method for producing a wiper arm

• US 7,272,890 B2
• Filed: 06/01/2002
• Issued: 09/25/2007
• Est. Priority Date: 07/02/2001
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Rapp, Harald, Zimmer, Joachim, Penne, Frans
• Primary Examiner(s): Graham; Gary K.
• Application Number:
  US10/362,608
• Publication Number:
  US 20040025282A1
• Time in Patent Office: 1,942 Days
• Field of Search: 152/503.51, 152/503.52, 295/05, 295/09, 294/28, 298/972
• US Class Current: 29/897.2
• CPC Class Codes: B60S 1/3438 Manufacturing details thereof
• CPC Class Codes: B60S 1/345 the elements being a link piece and a mounting head
• CPC Class Codes: Y10T 29/49622 Vehicular structural member making
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A wiper arm (10), in particular for a wiper apparatus of a motor vehicle, having at least one joint part (12) and/or one fastening part (18) with a base (30) is proposed, from which at least one and preferably two lateral flanks (32) extend at an angle (A), in particular approximately plumb, wherein at least one lateral flank (32) has at least one locking cam (40) and extends outward approximately from the edge (38), remote from the base, of the lateral flank (32) and is embodied integrally with the lateral flank (32), wherein the locking cam (40) is disposed in concealed fashion in the side profile. A method for producing a wiper arm (10) of this kind is also disclosed.

Claims

1. A method for producing a wiper arm for a wiper apparatus of a motor vehicle, comprising the steps of providing at least one part selected from the group consisting of a joint part and a fastening part;

providing in said at least one part a base and at least one lateral flank extending from said base at an angle;

providing in said at least one lateral flank at least one locking cam which extends inwardly from an edge remote from said base of said at least one lateral flank; and

disposing inwardly and configured integrally with said one lateral flank, said at least one locking cam in a concealed fashion in said at least one part in a side profile so that it can not be seen from outside of said at least one part;

stamping out a contour of the at least one part with the locking cam from a metal sheet;

bending the locking cam over out of a plane of the sheet by approximately 90°

;

upsetting the locking cam;

sharp-edged forming of the edge of the lateral flank; and

bending the lateral flank over by an angle creating a profile that is approximately U-shaped in cross-section.

2. A method as defined in claim 1;

and further comprising rotatably connecting the at least one part with the other part from the group; and

defining at least one limit of a rotational angle between the joint part and the fastening part by the locking cam.