One-Piece Wiper Connecting Element Vertical Blocking
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Solution Overview
Problem
The existing motor vehicle wiper blade designs with a connecting element and support frame are complex, requiring multiple components and intricate assembly processes, which complicates the securing of the connecting element to the support frame.
Innovation Solution
A one-piece connecting element with vertical longitudinal lateral legs that extend through lateral openings of a tubular body, featuring transverse tabs for vertical blocking and a crimpable end for longitudinal locking, simplifies the assembly and secures the structural element to the support frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the connecting element is produced in two parts to simplify assembly, then the assembly process is simplified, but the number of components and device complexity increases
Solution Approach 1:
The patent merges the connecting element into a single integrated piece that combines multiple functions: the connecting element itself, the lateral legs for insertion, and the tabs for blocking. This eliminates the need for separate components while maintaining assembly simplicity, directly resolving the contradiction between assembly ease and device complexity.
2Ease of operation
If the support frame is produced in two parts to facilitate connecting element mounting, then the mounting process is simplified, but the number of components and securing complexity increases
Solution Approach 1:
The support frame is designed as a single integrated structure combining the tubular body and mounting hooks, eliminating the need for separate parts while facilitating the mounting process through the lateral openings and structural element configuration.
3Reliability
If multiple securing means are used to secure the connecting element to the support frame, then the reliability of securing is improved, but the device complexity and assembly complexity increase
Solution Approach 1:
The connecting element integrates multiple securing functions into a single component: the lateral legs provide insertion through lateral openings, the tabs provide vertical blocking, and the one-piece structure provides longitudinal securing. This reduces assembly complexity while maintaining high securing reliability through multiple integrated securing mechanisms.
Data Source
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AI summary
The invention relates to a wiper brush (10) for an automotive vehicle, comprising: a longitudinal bearing mount (12) that comprises lower means for holding the wiping blade (13) and a tubular body (18) having a longitudinal main axis; a structural member (14) in the shape of a longitudinal horizontal blade received inside the tubular body (18); and a connection member (16) of the brush (10) with the driving arm, mounted on the bearing mount (12); characterised in that the connection member (16) is made of a single piece and includes two side longitudinal vertical tabs, each of which extends through a side opening (38) of the tubular body (18) on either side of the structural member (14), and in that the lower edge of each tab (34) is capable of interaction with the structural member (14) for vertically blocking the connection member (16) on the bearing mount (12).