Rotatable Exercise Handle Assembly with Bearing

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Solution Overview

Problem

Traditional pullup and chin-up exercises place substantial strain on joints and primarily target specific muscle groups in the arms, neck, and back, without effectively engaging core muscles like abdominal and trunk muscles.

Innovation Solution

A rotatable handle assembly with a J-shaped hook and a bearing system that allows the handle to rotate 360 degrees around a vertical axis, enabling the user to perform various exercises such as pullups, chin-ups, Australian pullups, standing rows, and dips by adjusting the orientation of the bar assembly between vertical surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional pullup bars are used, then the exercise targets specific muscle groups in arms, neck and back, but it places substantial strain on joints and does not engage core muscles

Engineering Contradiction:

Improvemuscle group engagementVSAvoidjoint strain

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The handle assembly incorporates a rotation mechanism with a bearing that allows the handle to rotate dynamically during exercise. This dynamic movement enables the user to adjust the handle orientation to engage different muscle groups including core muscles, while the rotation reduces strain on joints by allowing natural movement patterns.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The rotatable handle assembly serves multiple functions: it can be used for traditional pullups, chin-ups, and also enables core muscle exercises by rotating the handle to different orientations. The single device structure combines multiple exercise capabilities that would otherwise require separate equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If traditional fixed handle bars are used, then the structure is simple, but the range of motion and exercise variety are limited

Engineering Contradiction:

Improverange of motionVSAvoidhandle assembly structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The handle assembly is divided into separate components: a handle portion, a rotation mechanism with bearing, and a mounting portion that attaches to the bar. This segmentation allows the rotation mechanism to be integrated without significantly complicating the overall structure, while enabling enhanced range of motion and exercise variety.

Inventive Principle:

Principle #1Segmentation

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 solution reduces joint strain and engages additional muscle groups, allowing for a broader range of motion and facilitating core muscle exercises beyond traditional pullup and chin-up limitations.

Implementation Method 1

The rotation assembly facilitates rotational movement of the handle, via the bearing, about a vertical axis of the J-hook

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS20090203508A1Handle assembly for use with an exercise bar

Publication Date: 2009.08.13 IMPLUS FOOTCARE LLC

AI summary

A handle assembly adapted to grasp a bar for exercise includes a J-shaped hook for placement on the bar, a rotation assembly, and a handle attached to the rotation assembly. The handle has an inverted U-shaped bracket with a cross piece defining a grip that is connected between ends of the U-bracket. The rotation assembly is connected between a lower end of the hook and the U-shaped bracket and includes a bearing, the handle being rotatable via the bearing by a user during exercise with the J-hook on the bar.