Segmented Back Scratcher With Pivoting Rod
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Solution Overview
Problem
Existing backscratchers are cumbersome to use and store, and difficult to position for scratching hard-to-reach places due to their design, lacking a configuration that allows for selective angular positioning of scratching elements.
Innovation Solution
A backscratcher comprising a rod with multiple linear segments connected by pivots, allowing for adjustable angular positioning, and equipped with barbs at one end for scratching, which can be configured and stored conveniently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a backscratcher comprises a pair of elongate arcuate arms that are pivotally attached with scratching means on one end and a handle on the other, then the scratching means can be positioned in a U-shaped configuration for scratching one's back, but the device becomes cumbersome to use and to store when not in use
Solution Approach 1:
The rod is divided into multiple linear segments that can be selectively positioned relative to each other, allowing the device to be configured into different shapes including straight and angled positions, making it easier to store and transport while maintaining scratching capability
Solution Approach 2:
The linear segments are connected by pivots that allow selective angular positioning, enabling the rod to transition between different configurations (straight, angled, bent) to adapt to various scratching needs and storage requirements
2Ease of operation
If backscratchers comprise extensible rods with scratching means on one end and motors on the other end to induce movement, then the scratching means can be moved, but the rods are linear making it difficult to position the scratching means on one's back
Solution Approach 1:
The rod is segmented into multiple linear segments connected by pivots, allowing the device to be configured into different angular positions and shapes, providing both movement capability and positioning flexibility for scratching various areas of the back
Solution Approach 2:
The pivots between linear segments enable selective angular positioning, allowing the rod to adapt its shape and angle to reach different areas of the back, combining movement with positioning versatility
3Adaptability or versatility
If a backscratcher uses a single rigid rod design, then the structure is simple, but it cannot be selectively configured to reach hard-to-reach areas
Solution Approach 1:
The rod is divided into multiple linear segments that can be selectively positioned relative to each other, enabling the device to be configured into different shapes and angles to reach hard-to-reach areas while maintaining relatively simple construction
Solution Approach 2:
The pivots allow the linear segments to be selectively angled relative to each other, providing configuration flexibility to adapt to different scratching needs without requiring complex mechanical systems
Data Source
AI summary
A back scratching device for scratching hard to reach places includes a rod, which in turn comprises a plurality of linear segments. Each pivot of a set of pivots is operationally attached to a respective linear segment and to an adjacent linear segment. Each linear segment thus is selectively angularly positionable relative to at least one adjacent linear segment. A plurality of barbs is attached to a first end of the rod. The rod can be grasped, proximate to a second end of the rod, in a hand of a user, positioning the user to manipulate the rod so that the barbs scratch a back of the user to relieve itching.