Rotatable Handle Exercise Apparatus for Shoulder Stress Reduction
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Solution Overview
Problem
Conventional exercise apparatuses, such as bench press bars, often result in inefficient lifts due to fixed hand positions, leading to increased stress on the shoulders and surrounding tissues, as they do not allow for customization or rotation of the hands during exercises.
Innovation Solution
The exercise apparatus features a design with rotatable handles and adjustable frames, allowing for customizable hand positioning and 360-degree rotation, which can be moved relative to the shafts, reducing stress on the shoulders and enabling more physiological motion during exercises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed hand positions are used on conventional exercise apparatuses, then structural simplicity is maintained, but exercise efficiency decreases and shoulder stress increases
Solution Approach 1:
The patent applies the dynamics principle by making the handles rotatable relative to the shaft, allowing the hand position to change dynamically during exercise. The handle can rotate 360 degrees or through a range of motion, enabling users to adjust grip orientation and position naturally, thereby improving exercise efficiency while maintaining reasonable structural complexity through simple rotational joints.
2Adaptability or versatility
If fixed hand positions are used on conventional exercise apparatuses, then manufacturing simplicity is maintained, but adaptability to different users decreases
Solution Approach 1:
The rotatable handle mechanism provides adaptability to different users and exercise preferences without requiring multiple fixed-position apparatuses. The simple rotational joint and unidirectional rotation capability allow customization of hand position and orientation while maintaining ease of manufacture through standardized components and assembly processes.
3Object-affected harmful factors
If handles are rotationally fixed relative to the shaft, then structural stability is maintained, but shoulder stress increases due to restricted motion
Solution Approach 1:
The patent resolves the contradiction between stability and stress reduction by implementing a rotatable handle connection that maintains structural stability through controlled rotational movement. The handle rotates unidirectionally along the shaft, providing stable support while allowing natural shoulder motion, thereby reducing shoulder stress without compromising the overall structural integrity of the apparatus.
4Adaptability or versatility
If rotatable handles with 360-degree rotation are implemented, then exercise versatility and safety are improved, but device complexity increases
Solution Approach 1:
The patent implements a rotatable handle mechanism that provides enhanced exercise versatility through 360-degree or partial rotation capability. The rotation is achieved through simple joints that allow natural movement while maintaining connection to the shaft, avoiding complex mechanical systems. This approach improves exercise versatility and safety by enabling more natural motion patterns without significantly increasing device complexity.
Data Source
AI summary
Exercise apparatuses are described herein. An example embodiment of an exercise apparatus includes a first shaft, a first frame, a first handle, a second frame, a second handle, a second shaft, and a third shaft. The first frame is attached to the first shaft. The first handle is rotatably attached to the first frame such that the first handle can rotate relative to the first frame. The second frame is attached to the first shaft. The second handle is rotatably attached to the second frame such that the second handle can rotate relative to the second frame. The second shaft is attached to the first frame and the third shaft is attached to the second frame.