Method for production of a windscreen wiper arm with a U-profile cross-section and the corresponding device

A technology for windshield glass and bow-shaped parts is applied in the field of manufacturing U-shaped cross-section bow-shaped parts of windshield glass wipers, which can solve the problems of complex and time-consuming U-shaped bow-shaped parts.

Inactive Publication Date: 2004-09-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known method of producing U-shaped bows by forming rolled rivets is also disadvantageously complex and time-consuming

Method used

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  • Method for production of a windscreen wiper arm with a U-profile cross-section and the corresponding device
  • Method for production of a windscreen wiper arm with a U-profile cross-section and the corresponding device
  • Method for production of a windscreen wiper arm with a U-profile cross-section and the corresponding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] figure 1 A flat segment blank 14 is shown, which is provided with two through-holes 12 spaced apart from one another. A blank rivet 15 is fixed in place in one of the two through holes 12, forming a press fit. The flat segment blank 14 is fixed by a device 19 comprising two upper punches 23 and a lower punch 22 such that the central section of the segment blank 14 rests on the end face of the lower punch 22, while the segment The two lateral outer sections of the blank 14 protrude beyond the lower punch 22 . The two upper punches 23 of the device 19 are arranged opposite to the lower punch 22 and spaced laterally apart, and they rest with their respective end faces on the part of the flat segment blank 14 protruding beyond the lower punch 22 . on the side section. The lower punch 22 and the two upper punches 23 can be moved toward or away from each other simultaneously or successively along the arrow lines 24 and 25 in such a way that the flat bow arranged between th...

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Abstract

A method for producing a windshield wiper bracket (10) with a U-shaped cross section, with two through holes (12) disposed in the legs (11) of the bracket (10), through which a rivet (13) extends, wherein the method includes the following steps:production of through holes (12) in a flat bracket blank (14);insertion of a rivet slug (15) into one of the through holes (12);folding of the legs (11) to produce the U-shaped profile and to thereby position the rivet slug (15) in a position aligned with the other through hole (12);sliding of the rivet slug (15) into the position extending through both of the through holes (12), andriveting of the rivet slug (15).

Description

technical field [0001] The invention relates to a method for producing a U-section segment for a windscreen wiper, which segment has two through holes in the sides of the segment, through which a blank rivet passes. [0002] The invention also relates to a device for producing a U-section segment of a windshield wiper, wherein the device has a bending mechanism for making a flat segment blank provided with two through holes A U-shaped profile; a positioning mechanism for pushing the rivet blank into through holes aligned with each other after the U-shaped profile is produced; and a deformation mechanism for forming at least one rivet head on the rivet blank. Background technique [0003] Methods for producing windscreen wiper U-section bows are known. In these known methods, a U-shaped bow is deformed in a first station, the two sides of which are provided with through holes aligned with each other. In the second station, a blank rivet is inserted into two mutually aligned...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D53/00B21D5/01B21D35/00B21D53/88B21J15/00B23P15/00B60S1/38
CPCB60S1/3801B60S2001/3813B23P15/00Y10T29/49833Y10T29/49835Y10T29/49837Y10T29/49956Y10T29/53065B23P13/00
Inventor 马克·比日南斯保罗·克里埃尔
Owner ROBERT BOSCH GMBH
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