Wheel Exercising Device With Opposing Threads
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Solution Overview
Problem
Conventional wheel exercising devices have a fixed arm width, limiting variation and amusement during exercise, and are difficult to assemble and disassemble due to precise clearance requirements between wheels and shank.
Innovation Solution
A wheel exercising device with a shank featuring opposing threaded sections, handgrips with internal threads, and elastic members that move inward and outward with wheel rotation, allowing for adjustable handgrip displacement and easy assembly/disassembly via a quick release mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between the two rough surfaces is fixed, then the structure is simple, but the user's two arms are kept a constant width, thereby decreasing the variation and amusement of the exercising process
Solution Approach 1:
The patent converts the static fixed-distance structure into a dynamic adjustable structure by introducing threaded sections and handgrips that can move along the shank. The handgrips engage with opposite-threaded sections, allowing the distance between them to be adjusted by rotating the handgrips, thereby enabling variable arm width during exercise.
2Ease of operation
If the clearance between each of the two wheels and the shank is controlled exactly, then the device is stable, but the screw covers are detached from the two wheels only when it is necessary, and it is difficult to detach the screw covers
Solution Approach 1:
The patent segments the wheel-shank connection into modular components: the shank with connecting portions, wheels with axial holes, and caps that interface between them. This segmentation allows for easy assembly by simply connecting the axial holes to the connecting portions, eliminating the need for precise clearance control and making disassembly as easy as removing the caps.
3Use of energy by moving object
If the two wheels are rotated backward, then the user can move the wheels, but the two handgrips are moved outward relative to each other, requiring the user to apply determined force continuously
Solution Approach 1:
The patent implements a self-service mechanism where the elastic member automatically provides restoring force to the handgrips. When the wheels are rotated backward and the handgrips move outward, the elastic member stores energy; when the wheels are rotated forward, the elastic member releases energy to pull the handgrips inward, reducing the continuous user effort required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances exercise variation and amusement by adjusting handgrip position during wheel rotation, reduces user effort through elastic assistance, and simplifies device assembly and disassembly.
Implementation Method 1
At least one elastic member is connected between the connecting rings of the two handgrips... the at least one elastic member provides a pulling force between the two handgrips to pull the two handgrips toward the stop portion of the shank
Implementation Method 2
the at least one elastic member provides a restoring force to the two handgrips so that the user operates the two handgrips in an energy-saving manner
Implementation Method 3
The through hole of each of the two handgrips has a peripheral wall formed with an internal threaded section screwed onto the first threaded section and the second threaded section of the shank
Data Source
AI summary
A wheel exercising device includes a shank, two handgrips, two wheels, and two caps. The shank has a first threaded section and a second threaded section having different screwing directions. Each of the two handgrips is formed with an internal threaded section screwed onto the first threaded section and the second threaded section of the shank. At least one elastic member is connected between the two handgrips. Each of the two wheels is mounted on the shank. Each of the two caps is mounted on the shank and rests on one of the two wheels. When the two wheels are rotated forward and backward, the two handgrips are moved inward and outward synchronously along the first threaded section and the second threaded section of the shank.