Movable Plate Hand Tool for Inside, Outside, and Flat Surfaces
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Solution Overview
Problem
Existing tools lack the ability to easily adjust to both inside and outside corners, as well as planar surfaces, for tasks like finishing, cleaning, sanding, painting, scrubbing, and polishing, leading to inefficiencies and user fatigue.
Innovation Solution
A multipurpose tool with movably arranged plates that can be positioned in angular or coplanar configurations, equipped with interchangeable surface elements and a secure hand grip, allowing for adaptable use on various surfaces without the need for complex mechanisms or many components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed sanding devices are used, then simplicity and low cost are achieved, but the ability to conform to differing angle configurations is lost
Solution Approach 1:
The patent applies the dynamics principle by providing a sanding device with an adjustable planar element that can be reconfigured to different angular orientations. The planar element can be adjusted from a flat position to various angular positions to address interior corners of different degrees, transforming a static device into a dynamic one that adapts to different working conditions.
Solution Approach 2:
The patent segments the sanding device into multiple independent components: a handle assembly, a planar element, and adjustable structural supports. This segmentation allows each component to be optimized independently and enables the planar element to be adjusted relative to the handle, providing versatility while maintaining overall device simplicity.
2Device complexity
If manually operated sanding devices are used, then low cost and availability are achieved, but user fatigue and inefficiency occur
Solution Approach 1:
The adjustable planar element that can be reconfigured to different angular orientations allows the user to maintain optimal contact with various surface geometries, improving sanding efficiency without requiring multiple separate tools or complex mechanical systems.
Solution Approach 2:
The device allows change in the angular parameter of the planar element relative to the handle assembly, enabling adaptation to different corner angles and surface orientations. This parameter adjustment improves productivity by eliminating the need to switch between fixed-angle sanding devices.
3Adaptability or versatility
If adjustable sanding devices are used, then ability to address varying corner angles is improved, but device complexity increases
Solution Approach 1:
By segmenting the device into a handle assembly, planar element, and adjustable supports, the patent achieves angular adjustability through simple, independent components rather than a complex integrated mechanism. Each segment can be optimized for its specific function.
Solution Approach 2:
The adjustable structural supports provide dynamic reconfiguration capability, allowing the planar element to be positioned at different angles while maintaining structural integrity. This dynamic adjustment is achieved through simple mechanical means rather than complex mechanisms.
Data Source
AI summary
A multipurpose tool for cleaning, sanding, abrading, scrubbing, finishing, and polishing a work surface orientated in an angular or coplanar manner, which comprises a body having a top face and left and right sides integrally associated with leftward and rightward runners, respectively, for mounting thereon a pair of movably arranged plates in three distinct positional arrangements. Each leftward and rightward runner comprises a bottom face situated in between inward and outward angular walls each being angularly orientated within a specified range. Each movably arranged plate comprises a beveled edge correlating to a select angular orientated value of the outward and inward angular walls and first and second planar surfaces affixed with a hook and loop fastener to accept thereon an interchangeable surface element appropriately suited to operate on the work surface, the tool further comprising strap members attached to the body to engage one's hand to permit secure handling thereof.