Portable Exercise Device with Rotating Spool and Cable System
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Solution Overview
Problem
Existing resistance exercise devices for vehicles and seats lack a portable solution that incorporates a rotating spool, cable, and pulley system secured to the seat back, providing varying resistance levels while allowing users to exercise effectively while seated.
Innovation Solution
A portable exercise device featuring a housing with rotating spools, cables, handles, securing straps, and a tensioning knob, where the rotating spool is biased by a spiral coil spring to provide adjustable resistance, allowing users to mount the device to a seat back and perform exercises with adjustable resistance levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a portable exercise device is designed to mount to a seat back, then it enables exercise while seated, but it lacks a rotating spool and cable system for effective resistance training
Solution Approach 1:
The rotating spool and cable system is nested within a compact housing that mounts to the seat back. The housing contains the spool, cable, pulley, and spring mechanism in a space-efficient arrangement, allowing the device to fit on vehicle seats while providing full resistance training functionality.
Solution Approach 2:
The device incorporates a rotating spool with cable and pulley system that dynamically adjusts resistance through a spring mechanism. The cable can be pulled and released, creating variable resistance during exercise movements, transforming a static mounting structure into a dynamic exercise system.
2Device complexity
If elastic members are used for resistance, then the device is simpler, but it cannot provide varying resistance levels through a rotating spool mechanism
Solution Approach 1:
The spring mechanism allows resistance parameters to be changed by adjusting the winding of the cable on the rotating spool. As the cable winds and unwinds during exercise, the spring tension varies, providing progressive resistance levels without requiring multiple elastic members or complex adjustment mechanisms.
3Ease of operation
If the housing rests between the end user and the seat back, then it is easier to mount, but it blocks the user's view and comfort
Solution Approach 1:
The housing is designed to mount to the upper portion of the seat back, positioning the rotating spool mechanism above the user's head or at eye level. This local placement strategy allows the resistance mechanism to be accessible for mounting while leaving the lower seat back area clear for user comfort and visibility.
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 effective, adjustable, and easy-to-use resistance exercises while seated, addressing the need for a portable and versatile exercise solution that departs from conventional designs by utilizing a rotating spool and pulley system within the housing secured to the seat back.
Implementation Method 1
The rotating spool has a spiral coil spring that places a rotational biasing force upon the spool such that the cables will wind upon the rotating spool
Data Source
AI summary
The portable exercise device includes a housing, a rotating spool, a plurality of cables, a plurality of handles, at least one securing strap, and a tensioning knob. The device is temporarily installed about the front surface of the seat back via a single or plurality of straps. The tensioning knob provides varying levels of resistance with the rotating spool. The rotating spool has a spiral coil spring that places a rotational biasing force upon the spool such that the cables will wind upon the rotating spool.