Boneless Wiper Connection Structure for Easy Secure Positioning
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Solution Overview
Problem
Existing boneless wipers face challenges in achieving easy and secure positioning on various wiper arms with reduced assembly components.
Innovation Solution
A boneless wiper structure featuring a wiper blade with positioning holes and a connection base assembly, including a fixing base with engagement grooves and a joint base with transverse ribs, allowing for direct positioning and reduced assembly components, and accommodating different wiper arm types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If positioning elements are used to secure the fixing base to the wiper blade, then positioning accuracy is improved, but the number of assembly components increases
Solution Approach 1:
The positioning feet are integrated directly into the fixing base as a unified structure, eliminating the need for separate positioning elements. The positioning feet extend from the bottom of the fixing base and engage with positioning holes in the wiper blade, combining the positioning function with the fixing base itself, thereby reducing the total number of components while maintaining positioning accuracy.
Solution Approach 2:
The fixing base serves multiple functions simultaneously: it provides structural support, enables positioning through integrated positioning feet, and facilitates connection to the joint base via engagement grooves. This multi-functional design eliminates the need for separate positioning elements and reduces overall assembly complexity.
2Adaptability or versatility
If the wiper structure is designed for wide applicability to various wiper arms, then adaptability is improved, but the structural complexity increases
Solution Approach 1:
The joint base is designed with a universal structure that can accommodate different types of wiper arms through its engagement mechanism. The containing groove and engagement grooves allow the joint base to interface with various wiper arm configurations without requiring complex specialized components for each type, thus achieving wide applicability while maintaining relatively simple structure.
Solution Approach 2:
The wiper structure is divided into modular components (wiper blade, fixing base, joint base) that can be independently manufactured and assembled. This segmentation allows each component to be optimized for its specific function while maintaining overall adaptability, reducing the need for complex integrated designs.
3Ease of operation
If the number of assembly components is reduced, then ease of assembly is improved, but positioning stability may deteriorate
Solution Approach 1:
The positioning feet are merged into the fixing base structure, creating a stable integrated connection between the wiper blade and fixing base without requiring additional positioning elements. This integration maintains positioning stability while simplifying the assembly process by reducing the number of components that need to be installed.
Solution Approach 2:
The engagement grooves and blocks are designed with curved surfaces that provide stable mechanical engagement between the fixing base and joint base. The curved geometry of the engagement features ensures stable positioning while allowing for easy assembly through simple insertion and engagement motions.
Data Source
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AI summary
A boneless wiper structure (10) for a wiper arm (3) includes a wiper blade (1) and a connection base assembly (2). The wiper blade (1) is provided with two positioning holes. The connection base assembly (2) includes a fixing base (21) and a joint base (22). The fixing base (21) is assembled to the wiper blade (1). Two positioning feet (211) extend from a bottom of the fixing base (21) for engagement with the two positioning holes (11). A top of the fixing base (21) includes a containing groove (212) and a first engagement groove (213) and a second engagement groove (214) arranged on a front side and a rear side of the containing groove (212). The joint base (22) is engaged with the containing groove (212). A block (221) extends from one end of the joint base (22) to engage with the first engagement groove (213).