Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Windscreen wiper apparatus

A wiper and glass technology, applied in transportation and packaging, vehicle cleaning, vehicle maintenance, etc., can solve the problems of increased force, difficulty, and increased risk of unmeasured force, and achieve the effect of reduced forced deformation and reliable connection

Active Publication Date: 2012-07-11
ROBERT BOSCH GMBH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is very difficult, since the formed crimps on the bearing pin cannot be seen from the outside in the assembled state of the bearing pin and the tubular support part.
[0005] Since the material of the tubular carrier is usually steel and therefore requires a greater deformation force than the material of the bearing pin mounted thereon, usually made of aluminum, zinc or plastic, there is a risk when the bearing pin deforms during the crimping process. May not measure appreciable force increase
It is therefore difficult to achieve force-controlled crimping depending on the material properties, so that only pure stroke control can be used for the crimping process, which further increases the risk of introducing stress peaks into the bearing pin, especially at too great a crimping force

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Windscreen wiper apparatus
  • Windscreen wiper apparatus
  • Windscreen wiper apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1 A tubular carrier 1 for a windshield wiper system of a motor vehicle, not shown in detail, is shown in a schematic cross-sectional illustration.

[0037] Arranged on the tubular support part 1 is a crimping tool which comprises four crimping punches 2 . The crimping punch 2 is arranged such that the springback is adapted to the deformation of the circular cross-section of the tubular support part 1 caused by crimping, ie the springback δ and the deformation are minimized.

[0038] The tubular support part 1 has a circular cross-section in its initial shape, which has an inner contour 3 which, by exerting a force F on the crimping punch 2 压皱 deform locally, thus making it appear after the creasing process as figure 2 the shape shown. according to the existing technology figure 1 and 2 A bearing pin is accommodated in a tubular carrier part 1 whose cross section is substantially circular and whose outer contour essentially follows the inner contour 3 of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a windscreen wiper apparatus for a motor vehicle, having a wiper motor and having at least one wiper bearing in which a wiper shaft is mounted, it being possible to drive said wiper shaft by means of the wiper motor in order to operate a wiper arm which is connected to the wiper shaft, wherein the wiper bearing has a bearing pin (4) for holding a tubular support (1), it being possible for said bearing pin to be fixed to the tubular support (1) by means of a crimp, characterized in that the bearing pin (4) has an outer contour (5) which is already formed, at least in a region of overlap with the crimp, so as to correspond to an inner contour (3) of the crimped tubular support (1), before the crimp is introduced, and also to a method for producing said windscreen wiper apparatus.

Description

technical field [0001] The invention relates to a windshield wiper device for a motor vehicle, having a wiper motor and at least one wiper bearing, in which a wiper shaft is mounted, which can be used for actuating a wiper arm connected to the wiper shaft by means of the A wiper motor drive, wherein the wiper bearing has a bearing pin for receiving a tubular carrier, the bearing pin being fastened to the tubular carrier by crimping. The invention also relates to a method for producing a windshield wiper device. Background technique [0002] Such windshield wiper devices are generally known. During the crimping process, the parts to be fastened to one another are subjected to very high deformation forces in order to produce a positive connection between the bearing pin and the tubular support part. In addition to the tubular support part, the material area of ​​the bearing pin is also plastically deformed in order to achieve a corresponding positive connection between the tu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60S1/04
CPCB60S1/0425Y10T29/49771Y10T29/4978Y10T29/49913Y10T29/49925Y10T29/49927Y10T29/49929Y10T403/49B60S1/02B60S1/0436B60S1/34
Inventor S.马伊F.豪泽M.魏勒A.克劳斯
Owner ROBERT BOSCH GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com