Compact Upper Body Ski Motion Machine With Inverse-Winding Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for exercise machines that offer variety in workout options while maintaining a minimal footprint and requiring modest space, particularly for use in commercial fitness clubs or home exercise rooms.
Innovation Solution
The upper body ski motion exercise machine features a pair of laterally spaced spools with inelastic and elastic lines, resistance application means, and grips, allowing for compact design and emulation of skiing movements with adjustable resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple exercise machines are provided to offer variety in workout options, then exercise diversity is improved, but space requirements increase
Solution Approach 1:
The exercise machine provides multiple workout options through a single device by incorporating dual spools with independent resistance mechanisms. Users can perform various upper body exercises including rowing, climbing, and arm ergometry by manipulating the handles and spools in different ways, eliminating the need for separate machines for each exercise type.
Solution Approach 2:
The machine divides the exercise system into separate functional components - right and left spools, each with their own resistance mechanisms and line systems. This segmentation allows independent operation of each side, enabling diverse exercise patterns while maintaining a compact integrated structure that saves space.
2Adaptability or versatility
If resistance is applied to both rotational directions of spools, then exercise intensity options are improved, but device complexity increases
Solution Approach 1:
Instead of applying resistance to both rotational directions of each spool, the invention applies resistance only to one rotational direction. The elastic lines provide passive resistance in the opposite direction through their elastic recoil, inverting the conventional approach of active resistance application and simplifying the overall mechanism.
Solution Approach 2:
The elastic lines serve a dual function: they store energy during one phase of motion and automatically provide resistance during the return phase through elastic recoil. This self-service mechanism eliminates the need for additional active resistance mechanisms for bidirectional resistance, reducing device complexity while maintaining exercise intensity options.
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 machine provides a novel exercise experience with minimal space requirements, offering diverse workout options and efficient use of space through its compact design and adjustable resistance.
Implementation Method 1
a right side elastic line having a secondary end restrained for maintaining a spaced relationship relative to the right side spool lateral axis of rotation and a primary end secured to the right side spool whereby an intermediate length of the right side elastic line is operable for winding onto the right side spool when the right side spool is rotated in the rotational direction so as to stretch the right side elastic line and thereby create a biasing force favoring rotation of the right side spool in the counter rotation direction
Implementation Method 2
a means for applying friction based resistance to rotation of the pair of spools
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An upper body ski motion exercise machine that includes right and left spools, a single means for applying resistance to rotation of the spools, right and left side elastic lines each having one end anchored and the other end secured to the respective spool, right and left side inelastic lines each having one end secured to the respective spool and a grip attached to the other end, wherein the elastic and inelastic lines are configured and arranged for inverse winding and unwinding on the spool.