Ice Scraper Joint Coupling for Curved Surface Adaptability
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Solution Overview
Problem
Existing ice scrapers face difficulties in maintaining a consistent scraping angle on curved surfaces, leading to strain and inefficiency in removing ice from car windows, as users must adjust the scraper's angle to maintain contact effectively.
Innovation Solution
An ice scraper with a joint coupling between the blade holder and blade allows for movement to maintain a constant scraping angle, and features multiple transverse scraping edges for enhanced efficiency, ensuring optimal contact and ergonomic use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed blade holder is used to maintain scraping angle, then the structure is simple, but the scraping edge cannot adapt to curved surfaces
Solution Approach 1:
The blade holder is designed to be movable relative to the handle, allowing it to dynamically adjust its position and angle in response to the curvature of the window surface. This dynamic adjustment enables the scraping edge to maintain optimal contact angle while adapting to varying surface geometries, resolving the contradiction between adaptability and structural simplicity.
2Productivity
If the scraping edge is pressed against the window surface to break ice, then ice removal efficiency improves, but user strain increases on curved surfaces
Solution Approach 1:
The blade holder is designed to automatically adjust its position and maintain optimal scraping angle through its own mechanical properties when subjected to pressing forces. This self-adjusting mechanism eliminates the need for the user to manually adjust the angle while maintaining effective ice removal, thereby improving ease of operation without sacrificing productivity.
3Ease of manufacture
If the blade is fixed at a constant angle, then manufacturing is simple, but the scraping edge cannot maintain optimal angle on curved surfaces
Solution Approach 1:
The blade holder incorporates a movable joint that allows automatic angular adjustment while maintaining manufacturing simplicity. The joint mechanism is designed with simple geometric features that enable the blade to self-adjust to the optimal angle on curved surfaces without complex manufacturing processes, thus maintaining both ease of manufacture and reliable consistent scraping angle.
Data Source
AI summary
An ice scraper for removing ice from a surface includes a longitudinal handle with a longitudinal axis, and a blade with a first scraping edge extending transversely relative to the handle. A blade holder extends between the handle and the blade, with the blade holder extending in an angle relative to the longitudinal axis of the handle. The blade is connected to the blade holder with a joint coupling for allowing movement of the blade relative to the blade holder.