Wiper Arm Holder Locking Structure for Arc-Groove Compatibility
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Solution Overview
Problem
Existing wiper arm holder structures are not compatible with wiper arms featuring arc-shaped grooves, such as the Roc-lock 3 series, leading to installation interference and difficulties.
Innovation Solution
A holder for a wiper arm with a dovetail slot, a fixing pin, and equidistant first and second locking pins, which engage with arc-shaped grooves on the wiper arm, allowing for smooth installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional holder structure is used, then it is compatible with flat wiper arms, but it causes installation interference with arc-shaped groove wiper arms
Solution Approach 1:
The holder body is designed with a universal interface system that can accommodate both flat wiper arms and arc-shaped groove wiper arms. The dovetail slot provides a standard mounting interface, while the locking pin mechanism with arc-shaped grooves enables compatibility with Roc-lock 3 series wiper arms, making the holder suitable for multiple wiper arm types without requiring different holder designs
2Ease of manufacture
If the holder structure is simplified, then manufacturing is easier, but installation compatibility with arc-shaped groove wiper arms is lost
Solution Approach 1:
The holder is segmented into distinct functional components: the holder body with dovetail slot for basic mounting, and locking pins with arc-shaped grooves for secure engagement. This segmentation allows each component to be manufactured independently using standard processes, while the combination provides the necessary compatibility with arc-shaped groove wiper arms
3Reliability
If locking mechanism is added, then connection security is improved, but device complexity increases
Solution Approach 1:
The locking function is merged into the holder body itself through integrated locking pins with arc-shaped grooves, rather than being a separate mechanism. This integration provides secure connection for arc-shaped groove wiper arms while minimizing additional complexity, as the locking features are built into the holder's basic structure
Data Source
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AI summary
The present invention relates to a holder for a wiper arm, a wiper assembly and a motor vehicle. The holder comprises: a body, having two opposite sidewalls extending in the longitudinal direction of the wiper arm, the bottom of the body being provided with a dovetail slot configured to match a protrusion of an adapter; a fixing pin, arranged between the two opposite sidewalls of the body; and a first locking pin and a second locking pin, arranged in the two opposite sidewalls of the body respectively, the first locking pin and the second locking pin being equidistant from the fixing pin.