Wrist Strength Training Device With Threaded Rod And Spring

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Solution Overview

Problem

Current arm strength training equipment primarily targets forearm muscles, neglecting wrist strength training and often results in muscle strain or spring injury due to improper control of spring expansion.

Innovation Solution

A wrist strength training device featuring a threaded rod with a resistance member, torsion handles, and a positioning sleeve, where the resistance member is a spring arranged between the torsion handles, allowing for controlled rotation and adjustable resistance to effectively train wrist muscles, with anti-skid features to prevent slipping and a hanging hole for storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If spring arm strength devices are used, then arm strength training is provided, but wrist strength training is weak and muscle strain or spring injury may occur

Engineering Contradiction:

Improvesafety of useVSAvoidtraining effectiveness

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The device segments the training function by providing separate torsion handles for wrist training while maintaining spring resistance for arm training, allowing independent wrist exercise without risking spring injury

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The positioning sleeve acts as an intermediary component between the spring and torsion handles, controlling spring expansion to prevent injury while maintaining training effectiveness

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the thread stroke at both ends of the threaded rod is longer than the length of the torsion handle, then the torsion handle becomes more flexible when moving or backward, but the device complexity increases

Engineering Contradiction:

Improveflexibility of torsion handleVSAvoidthread stroke design

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The extended thread stroke enables dynamic adjustment of the torsion handle position, allowing greater range of motion and flexibility during wrist training exercises

Inventive Principle:

Principle #15Dynamics

3Length of moving object

If the whole length of the threaded rod is provided with threads, then the stroke of torsion action is increased, but the manufacturing complexity increases

Engineering Contradiction:

Improvestroke of torsion actionVSAvoidthreaded rod manufacturing

Core Design Contradiction:

Length of moving objectVSEase of manufacture

Solution Approach 1:

Full-length threading on the rod enables maximum stroke of torsion action by allowing the torsion handles to travel the entire length of the rod while maintaining threaded connection

Inventive Principle:

Principle #15Dynamics

4Reliability

If a positioning sleeve is arranged between the spring and torsion handle, then uniform force distribution is achieved, but the device complexity increases

Engineering Contradiction:

Improveforce distribution uniformityVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The positioning sleeve serves as a mediator between the spring and torsion handle, distributing force uniformly across the spring ends to prevent localized stress and injury

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The positioning sleeve provides beforehand cushioning by controlling spring expansion and preventing sudden releases that could cause injury

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

5Reliability

If the torsion handle is provided with an anti-skid sleeve and anti-skid bulge, then slipping is prevented, but the device complexity increases

Engineering Contradiction:

Improvegrip stabilityVSAvoidhandle structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The anti-skid sleeve with anti-skid bulge provides a simple, effective solution to prevent slipping during sweaty training sessions without adding complex mechanisms

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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

The device provides a safe and effective means to train wrist muscles by varying resistance levels, ensuring uniform force distribution and preventing accidents during use, accommodating different users and offering flexibility and convenience.

Implementation Method 1

the spring is extruded by the positioning sleeve to produce deformation, thus producing the elastic force opposite to the extrusion direction

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

the two ends of the threaded rod are provided with threads screwed with each of the torsion handles

Methodology Applied

Scientific EffectScrew mechanism: Screw

Data Source

PatentUS20220168612A1Wrist strength training device

Publication Date: 2022.06.02 QUANZHOU ZHONGLONG INFORMATION TECH CO LTD

AI summary

The present application provides a wrist strength training device which is mainly aimed at wrist strength training and is very safe to use, including a threaded rod, a resistance member sheathed on the threaded rod and a torsion handle sheathed on both ends of the threaded rod and connected with the threaded rod, the resistance member is arranged between the two torsion handles on the threaded rod.