Exercise Machine Slide Structure With Dry-Running Limit Slider
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Solution Overview
Problem
Existing exercise machine slide structures are prone to damage and noise due to foreign objects entering recessed rails, affecting the smooth operation and longevity of rollers.
Innovation Solution
A slide structure featuring a slide seat, rotatably coupled rollers, and a dry-running limit slider with a bushing seat and dry-running bushing that embraces the slide rail, preventing foreign objects and reducing the force exerted on the rollers, ensuring stable and smooth movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rollers are used to roll in recessed rails, then the slide structure can move smoothly along the axial direction, but foreign objects can fall into the recessed rail and damage the rollers
Solution Approach 1:
The patent extracts the harmful recessed portion from the rail structure and replaces it with a protruding limit slider that extends into the sliding space. This removes the cavity where foreign objects could accumulate while maintaining the guiding function through the protruding limit slider that prevents lateral displacement.
Solution Approach 2:
The limit slider acts as an intermediary component between the roller and the rail. It provides a protective interface that prevents foreign objects from reaching the roller while still allowing smooth axial movement through its designed sliding contact with the rail.
2Device complexity
If foreign objects enter the recessed rail, then the structure becomes more complex, but the rollers bounce and make noise reducing service life
Solution Approach 1:
The patent eliminates the recessed cavity from the rail structure, thereby removing the space where foreign objects could enter and cause damage. The simplified protruding limit slider structure prevents foreign object accumulation while maintaining the necessary guiding function.
Solution Approach 2:
The protruding limit slider is positioned in advance to prevent foreign objects from entering the sliding interface. By extending into the sliding space, it creates a barrier that stops foreign objects from reaching the roller before they can cause damage.
3Ease of operation
If the slide seat moves freely along the axial direction, then the operation is easier, but the displacement control on the vertical plane is insufficient
Solution Approach 1:
The patent segments the movement control into two independent functions: axial movement is enabled through the roller's rolling contact with the rail, while vertical plane displacement is controlled by the limit slider's sliding contact with the rail. This segmentation allows each direction to be optimized independently.
Solution Approach 2:
The limit slider serves as an intermediary that provides vertical plane constraint while allowing axial movement. It mediates between the free rolling motion of the roller and the need for vertical stability, enabling controlled movement in the axial direction while preventing lateral displacement.
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 solution prevents foreign objects from entering the slide rail, reduces the working load on rollers, and extends their lifespan, while maintaining smooth operation and stability by limiting displacement on the vertical plane.
Implementation Method 1
The roller rolls on the slide rail along the axial direction
Implementation Method 2
The dry-running bushing embraces the slide rail on a vertical plane perpendicular to the axial direction to limit displacement of the slide seat on the vertical plane
Data Source
AI summary
A slide structure of an exercise machine comprises a slide seat, configured to be movable along an axial direction relative to a slide rail; a roller, rotatably coupled to the slide seat; a dry-running limit slider, having a bushing seat and a dry-running bushing, the dry-running bushing embracing the slide rail on a vertical plane perpendicular to the axial direction. The slide seat moves on the slide rail along the axial direction through the roller to roll along the axial direction, the dry-running limit slider to slide along the axial direction, and the dry-running limit slider to limit the displacement of the slide seat on the vertical plane.