Exercise Machine Rail Mechanism for Free-Weight Motion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing exercise machines fail to accurately emulate the complex movement and resistance of free weight exercises, particularly in movements like bicep curls, which involve both vertical and horizontal components, while aiming for a compact and inexpensive setup.
Innovation Solution
An exercise machine with a moveable rail system that is independently and simultaneously movable along horizontal and vertical directions, connected to a weight stack and frame via a combination bearing mechanism with horizontal and vertical rollers, allowing for natural movement and resistance similar to free weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a compact pulley type weight resistant machine is used, then the setup becomes less expensive and more compact, but the machine fails to accurately emulate the complex movement and resistance of free weight exercises
Solution Approach 1:
The machine divides the movement into independent horizontal and vertical components using separate rail systems and bearing mechanisms. The weight stack provides vertical resistance while the moving rail allows horizontal movement, segmenting the complex free-weight motion into manageable orthogonal components that can be independently controlled.
Solution Approach 2:
The invention adds a horizontal movement dimension to the traditional vertical weight stack system. By incorporating a moving rail that permits horizontal displacement coupled with vertical weight resistance, the machine creates two-dimensional movement capability, better emulating the natural multi-directional motion of free weight exercises.
2Reliability
If free weights are used, then accurate movement and resistance are achieved, but numerous weights and bars are required increasing complexity and space requirements
Solution Approach 1:
The moving rail mechanism serves multiple functions: it provides the horizontal movement component, supports the weight stack vertically, enables multi-directional exercise motions, and replaces the need for multiple separate weights and bars. This single integrated structure performs what would otherwise require numerous individual free-weight components.
Solution Approach 2:
The invention merges the horizontal movement function and vertical resistance function into a single integrated system. The moving rail combines horizontal translation capability with vertical weight stack support, consolidating what would be separate free-weight components (bars, multiple weight sets for different directions) into one unified mechanism.
3Force
If a traditional weight stack machine is used, then resistance is provided, but horizontal movement components are restricted
Solution Approach 1:
The moving rail mechanism transforms the static, fixed-path weight stack system into a dynamic system that adapts to natural body movement. The rail allows the weight stack to move horizontally along with the user's motion while maintaining vertical resistance, making the resistance mechanism responsive and adaptable rather than rigid and restrictive.
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 users to perform exercises with both vertical and horizontal movement components, providing a compact and cost-effective solution that mimics free weight resistance without the need for multiple weights and bars, allowing for effective muscle engagement and efficient training.
Implementation Method 1
a combination bearing mechanism with horizontal and vertical rollers, allowing for natural movement and resistance similar to free weights
Implementation Method 2
The moving rail and the weight stack are operably connected to a frame
Data Source
AI summary
The present invention is an exercise machine which includes a moveable section connected to a frame such that the moveable section is independently and simultaneously moveable along an horizontal direction and vertical direction. The exercise machine further includes and a weight stack operably connected to the moveable section, such that the weight stack providing resistance to movement of the moveable section; and a frame operably supporting the moveable section and the weight stack.