Pull-up Machine Grip Bar Positioning Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pull-up fitness exercise machines have limited grip bar positioning, leading to repetitive exercises that cause user fatigue and decreased interest due to lack of variability, resulting in reduced practical value.
Innovation Solution
A pull-up fitness exercise machine with a grip bar hanging frame structure that allows the grip bar to be randomly lifted and positioned, featuring an electric adjusting mechanism, hand-operated and foot-operated switch units, and a safety sling for varied training and user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the grip bar position is fixed at a predetermined location, then the structure is simple and stable, but the exercise variability is limited and user interest decreases
Solution Approach 1:
The grip bar is transformed from a fixed static structure to a dynamic movable structure. The grip bar can be freely positioned along the vertical rod through a sliding mechanism with limiting blocks, allowing users to adjust the grip bar to different heights according to their training needs, thereby increasing exercise variability without significantly complicating the overall structure
Solution Approach 2:
The positioning system is segmented into independent components: the vertical rod with multiple positioning holes, the grip bar with limiting blocks, and the sliding mechanism. This segmentation allows the grip bar to be independently adjusted to different positions while maintaining structural simplicity and stability
2Adaptability or versatility
If the grip bar position is adjusted during exercise, then exercise variability increases, but the operation becomes more complex and time-consuming
Solution Approach 1:
The grip bar incorporates a dynamic adjustment mechanism that allows smooth movement along the vertical rod. The limiting blocks can easily slide between positioning holes during exercise, enabling users to quickly change grip bar positions without complex operations or significant time loss, thus maintaining training flexibility while preserving ease of operation
3Adaptability or versatility
If multiple hanging bars are provided for random hanging, then exercise variety increases, but the device complexity and space requirements increase
Solution Approach 1:
Instead of providing multiple fixed hanging bars simultaneously, the invention uses a single vertical rod with multiple positioning holes that allows the grip bar to be dynamically repositioned. This dynamic approach achieves the same training variability as multiple fixed bars while maintaining a simpler, more compact structure that occupies less space
Solution Approach 2:
The vertical rod with multiple positioning holes serves as a universal positioning structure that can accommodate the grip bar at any height. This multi-functional design replaces the need for multiple dedicated hanging bars, achieving exercise variety through a single versatile component rather than multiple specialized ones
Data Source
AI summary
A pull-up fitness exercise machine with a grip bar hanging frame structure for a hang-up training includes a support board. The support board is automatically lifted upward by a pushing unit for the user to take an expected pull-up exercise. The pushing unit is activated by an electric adjusting element in a mechanism box unit for a proper adjustment of the pushing force. The support board is provided with a hand-operated switch unit and a foot-operated switch unit for cooperating with their corresponding barbed hooks respectively, such that the support board can always be kept at a relatively low position in the case that the foot-operated switch group is not stressed. A hanging frame having a plurality of corresponding hanging bars is positioned on both top ends of the front frame for providing a random hanging of a grip bar with a safety sling.