Abdominal Exercise Device With Curved Frame And Elastic Bands
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Solution Overview
Problem
Conventional abdominal exercise devices require the use of hands to create a rocking motion, leading to muscle fatigue and limiting the ability to perform simultaneous exercises for other muscle groups, and they do not effectively engage the lower body or provide adjustable width for users of varying sizes.
Innovation Solution
A full body exercise device with a curved frame that utilizes elastic bands to create a rocking motion without the need for hands, featuring adjustable connectors, a contoured headrest, and adjustable width, allowing for a range of exercises that target multiple muscle groups simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hands are used to create rocking motion in conventional ab exercise devices, then the device can be operated effectively, but hand muscle fatigue occurs and limits extended use
Solution Approach 1:
The device uses the user's own body weight and the elastic band's mechanical properties to automatically generate the rocking motion. The elastic band stores and releases energy during the rocking cycle, creating a self-sustaining motion that eliminates the need for continuous hand effort to drive the mechanism.
Solution Approach 2:
The elastic band acts as an intermediary between the user's body movements and the rocking frame. It transfers and transforms the user's input forces into the desired rocking motion, reducing direct mechanical demand on the hands while maintaining effective operation.
2Ease of operation
If hands are used to create rocking motion, then the exercise device functions properly, but other muscle groups cannot be exercised simultaneously
Solution Approach 1:
The device automatically generates rocking motion through the elastic band mechanism and user body weight, freeing the hands to perform additional exercises. This self-sustaining motion system enables simultaneous engagement of multiple muscle groups without compromising the primary abdominal exercise function.
Solution Approach 2:
The device is designed to support multiple exercise functions simultaneously. The rocking mechanism works autonomously while the user can perform various arm, chest, and leg exercises, making the device versatile for full-body workouts rather than limited to single-muscle group exercise.
3Ease of manufacture
If the device has a fixed width, then manufacturing is simpler, but it cannot accommodate users of varying sizes
Solution Approach 1:
The device incorporates adjustable width components that allow the frame or support elements to be reconfigured for different user sizes. This dynamic adjustability enables the same device to accommodate a range of body types while maintaining structural integrity and functional performance.
Solution Approach 2:
The device is divided into modular segments that can be adjusted or reconfigured. This segmentation allows the width to be modified by repositioning or reconfiguring specific components, providing size accommodation without requiring complete redesign for each user type.
4Measurement precision
If the device engages only the abdominal muscles, then the exercise focus is targeted, but the lower body and other muscle groups are not utilized
Solution Approach 1:
The device is designed to support multiple exercise functions simultaneously. The rocking mechanism works autonomously while the user can perform various arm, chest, and leg exercises, making the device versatile for full-body workouts rather than limited to single-muscle group exercise.
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
Enables extended use without hand fatigue, engages the abdominal muscles effectively while allowing for simultaneous exercise of other muscle groups, including the lower body, and accommodates users of different sizes with adjustable features.
Implementation Method 1
utilizes elastic bands to create a rocking motion
Data Source
AI summary
An abdominal exercise device includes a frame comprising top, middle, and bottom frame sections. The middle frame section has a curved shape for creating a teeter-totter movement during exercise. The device includes a headrest connected to the bottom frame section, a plurality of connectors for connecting elastic bands to the frame, and an elastic band connected to at least two connectors. The two ends of the elastic band are connected to two straps. The device creates the teeter-totter movement to exercise the abdominal muscles in response to a person lying down in supine position with the back of the head on the headrest and the feet in the two straps, the person applying a downward pressure with the feet to the straps to move the headrest from a resting position, and the person removing the downward pressure to allow the headrest to go back to the resting position.


