Vertical Lower Limb Exercise Device With Spring Resistance
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Solution Overview
Problem
Traditional fitness equipment for exercising the inner and outer thigh muscle group is large, user-unfriendly, and requires switching settings between inner and outer thigh exercises, making it less accessible for home use and more space-consuming than necessary.
Innovation Solution
A compact, portable device with two pivotal members connected by a center bridge and gear set, featuring a wheel system for stability and assisted force through spring or string elements, allowing intuitive adjustment of movement range and force level, enabling inner and outer thigh exercises without a weight stack system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional inner and outer thigh exercise equipment uses a weight stack system with horizontal leg movement, then it provides effective muscle exercise, but it occupies a large space and has a steep learning curve requiring device setting switching
Solution Approach 1:
The device is divided into two independent pivotal members (first and second pivotal members) that can operate independently for inner thigh and outer thigh exercises respectively. Each pivotal member has its own footrest and spring element, allowing simultaneous or separate use without requiring setting switching between exercises
Solution Approach 2:
The device combines both inner thigh exercise and outer thigh exercise capabilities into a single unified structure. The two pivotal members share common components (center bridge, gear set, wheel system, spring elements) while providing distinct exercise functions, eliminating the need for separate devices or setting adjustments
2Volume of moving object
If traditional inner and outer thigh exercise equipment uses a weight stack system, then it provides resistance for muscle exercise, but it occupies a large space and is not portable
Solution Approach 1:
The invention removes the traditional weight stack system entirely and replaces it with spring elements that provide resistance directly at the pivotal members. This extraction of the weight stack eliminates the large horizontal space requirement while maintaining the resistance function necessary for effective muscle exercise
Solution Approach 2:
The device transitions from horizontal leg movement (traditional weight stack) to vertical pivotal member rotation. This dimensional change allows the resistance mechanism to be compact and vertical rather than horizontal, significantly reducing the foot print while maintaining exercise effectiveness
3Force
If traditional inner and outer thigh exercise equipment uses a weight stack system, then it provides resistance force, but it requires added weight system and occupies large space
Solution Approach 1:
The spring elements act as counterweight mechanisms that provide resistance force opposite to the direction of movement. During inner thigh exercise, the second spring element on the second pivotal member provides resistance, and vice versa for outer thigh exercise, eliminating the need for added weight stacks
Solution Approach 2:
The spring elements are self-contained within the pivotal member structure and automatically provide the necessary resistance force for exercise. The system is self-sufficient without requiring external weight stacks or additional force-generating components, reducing overall device weight while maintaining exercise effectiveness
4Ease of operation
If traditional inner and outer thigh exercise equipment is designed for gym use with trainers available, then it provides effective exercise, but it is not suitable for home use due to space and complexity requirements
Solution Approach 1:
The device is divided into two independent pivotal members (first and second pivotal members) that can operate independently for inner thigh and outer thigh exercises respectively. Each pivotal member has its own footrest and spring element, allowing simultaneous or separate use without requiring setting switching between exercises
Solution Approach 2:
The device combines both inner thigh exercise and outer thigh exercise capabilities into a single unified structure. The two pivotal members share common components (center bridge, gear set, wheel system, spring elements) while providing distinct exercise functions, eliminating the need for separate devices or setting adjustments
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 user-friendly, space-efficient, and portable solution for exercising the inner and outer thigh muscles, offering assisted force and adjustable movement, suitable for both commercial gyms and home use, with the ability to remain stationary during exercise while allowing for effective muscle engagement.
Implementation Method 1
one or more spring element is attached to the device which one end of the element is fixed on one pivotal member and the other end of the element is fixed on the other pivotal member. The spring element stores the potential energy released during the outer thigh exercise movement and returns the potential energy back in the form of assisted force during inner thigh exercise.
Implementation Method 2
two axles and two miter gears. The two wheels are locked to a horizontal axle which is parallel to the ground with a miter gear is installed on to the horizontal wheel axle. Another axle that has the same type of miter gear installed connects to the horizontal wheel axle perpendicularly through the miter gear set.
Data Source
AI summary
The present application discloses a standing vertical lower limb exercise device. The lower limb exercise device includes two major pivotal members, a horizontal bridge member that connects the major pivotal members, a stretchable spring, a string member for limiting a split angle formed by the two major pivotal members, and wheels, gears, and shafts to facilitate movement of the two major pivotal members. The stretchable spring and string member are coupled between the two major pivotal members. Wheels are coupled to each major pivotal member.