Adjustable Exercise Bar Rotation for Multi-Angle Weight Training
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Solution Overview
Problem
Conventional weight training apparatuses have a fixed exercise bar angle, limiting the ability to stimulate various muscle areas effectively.
Innovation Solution
A weight training apparatus with an exercise bar rotating unit that allows the first and second exercise bars to rotate in opposite directions, adjusting the angle of the handles through a connecting plate with adjustable securing pins and connecting bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the exercise bar angle is fixed to a single angle, then the device structure is simple, but the ability to stimulate various muscle areas is limited
Solution Approach 1:
The exercise bar is made adjustable through a rotating unit with multiple angle positions. The bar can be rotated to different angles (e.g., 0°, 15°, 30°, 45°) and locked at each position using a securing pin and hole mechanism, allowing users to dynamically change the exercise angle to target different muscle groups while maintaining structural feasibility through discrete positioning options
Solution Approach 2:
The angle adjustment mechanism is segmented into discrete components: a rotating unit with multiple predetermined angle positions, securing pins for locking each position, and angle adjustment holes at specific angular intervals. This segmentation allows the system to provide multiple functional angles without requiring a completely continuous adjustment mechanism, balancing versatility with structural simplicity
2Adaptability or versatility
If the exercise bar angle is adjustable to multiple angles, then the ability to stimulate various muscle areas is improved, but the device structure becomes complex
Solution Approach 1:
The rotating unit serves multiple functions: it acts as both the structural support for the exercise bar and the angle adjustment mechanism simultaneously. The same rotating unit that holds the bar also provides the angle change capability through its rotation and locking mechanism, eliminating the need for separate adjustment devices and reducing overall structural complexity
Solution Approach 2:
The securing pin acts as an intermediary element between the rotating unit and the frame. It transfers the locking function from a complex mechanical latch system to a simple pin-hole engagement mechanism, enabling reliable angle positioning without requiring complex fastening structures
Data Source
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AI summary
The present invention relates to a weight training apparatus capable of adjusting the angle of an exercise bar. The weight training apparatus of the present invention includes: a main frame; first and second exercise bars hinge-coupled to one side of the main frame and configured for a user to push or pull using handles; and an exercise bar rotating unit configured to rotate the first and second exercise bars in mutually opposite directions with respect to their longitudinal central axes. The exercise bar rotating unit includes: a connecting plate having a securing pin, hinge-coupled to the main frame between the first and second exercise bars so as to be rotatable; a holder including a plurality of angle adjustment holes, formed to secure the securing pin inserted into one of the angle adjustment holes; and first and second connecting bars connecting the first and second exercise bars to the connecting plate, and configured to rotate the first and second exercise bars respectively with respect to the central axes according to the rotation of the connecting plate.