Magnetic Cable Guide for Wearable Exercise Resistance Transmission
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Solution Overview
Problem
Existing wearable exercise devices lack efficient mechanisms to guide and manage cables that transmit power from a proximal to a distal wearing member, leading to friction, tangling, and wear, which can hinder effective muscle strengthening exercises.
Innovation Solution
A wearable exercise device with a cable guide system comprising a cable tube, connector, cable chain, and end cover, along with a motor-driven spool and level guide mechanism, uses tube magnets and a cable holder to manage cable path and reduce friction, ensuring smooth power transmission and multiple directional bends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cable is guided through a simple path without magnetic guidance, then the device structure is simpler, but the cable experiences friction and tangling which reduces reliability
Solution Approach 1:
The patent introduces tube magnets as intermediary elements that generate magnetic fields to guide the cable magnet along the desired path. The magnetic field acts as an invisible intermediary that directs cable movement without physical contact, reducing friction and tangling while maintaining reliable power transmission from the proximal to distal wearing member.
Solution Approach 2:
The patent replaces traditional mechanical cable guidance systems with a magnetic guidance system. Instead of using physical guides, pulleys, or slots that create friction, the invention uses magnetic fields generated by tube magnets to guide the cable magnet, eliminating mechanical contact and associated friction while improving cable transmission reliability.
2Adaptability or versatility
If the cable is allowed to bend in multiple directions for flexibility, then the device adapts better to user movement, but the cable becomes more prone to tangling and wear
Solution Approach 1:
The patent implements a dynamic cable management system where the cable magnet can move freely within the magnetic field generated by the tube magnets. This allows the cable to adapt to various user movements and directional changes while the magnetic guidance continuously redirects the cable along the optimal path, preventing tangling and reducing wear even during complex multi-directional movements.
Solution Approach 2:
The magnetic field serves as a dynamic intermediary that continuously guides the cable magnet along the correct path regardless of cable bends or user movements. This magnetic guidance mechanism ensures that even when the cable needs to bend in multiple directions for flexibility, the magnetic field prevents tangling and maintains cable durability.
3Loss of energy
If friction between cable and guide components is reduced, then power transmission efficiency improves, but the cable may become harder to control
Solution Approach 1:
The patent replaces mechanical friction-based cable control with magnetic field-based guidance. The magnetic field provides guidance forces without physical contact, minimizing friction and maximizing power transmission efficiency. The magnetic guidance maintains sufficient control over the cable through the magnetic attraction between the tube magnets and cable magnet, ensuring ease of operation despite reduced friction.
Solution Approach 2:
The patent changes the control mechanism from mechanical friction to magnetic force. By adjusting magnetic field strength through the tube magnets, the system achieves optimal balance between reducing friction for efficient power transmission and maintaining sufficient magnetic attraction for easy cable control and positioning.
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 system effectively reduces friction and tangling, ensuring consistent power transmission and multiple directional bends, enhancing the effectiveness and durability of muscle strengthening exercises.
Implementation Method 1
a cable guide that is connected, directly or indirectly, to the actuator, configured to guide a path of the cable, and may include a plurality of tube magnets in a ring shape
Implementation Method 2
a cable magnet that is connected, directly or indirectly, to the cable and capable of passing through the plurality of tube magnets
Implementation Method 3
a cable holder that is connected, directly or indirectly, to the distal wearing member, supports the cable magnet, and configured to apply magnetic force to the cable magnet
Data Source
AI summary
A wearable exercise device may include an actuator including a motor, a level guide shaft, a level guide body, and a spool, in which the level guide shaft is rotated by the motor, the level guide body is connected to the level guide shaft, and the spool is provided in parallel to the level guide shaft, a cable that is at least partially wound around the spool, a cable guide that is connected to the actuator, configured to guide a path of the cable, and may include a plurality of tube magnets in a ring shape, a cable magnet that is connected to the cable and capable of passing through the plurality of tube magnets, and a cable holder that is connected to the distal wearing member, supports the cable magnet, and configured to apply magnetic force to the cable magnet.