Doorway Exercise Device with Slidable Carriages and Adjustable Resistance
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Solution Overview
Problem
Existing home gym devices for doorways lack versatility and stability, often obstructing space and limiting exercise variations due to cumbersome designs and difficult configuration processes.
Innovation Solution
A doorway exercise device featuring slidable carriages on vertical rail members with locking mechanisms and resistance bands that can be adjusted for tension, allowing for various exercise configurations with minimal effort and unobstructed passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the home gym device includes multiple configurations and exercise components, then the exercise variety is improved, but the device size increases and space requirements worsen
Solution Approach 1:
The device is divided into separate modular components: vertical rail members that attach to the doorway, slidable carriages that move independently on each rail, and resistance bands that connect between carriages. This segmentation allows each component to be compact while the system as a whole provides multiple exercise configurations through different combinations and arrangements of the modular parts.
Solution Approach 2:
The device utilizes the vertical dimension by attaching rail members to the vertical sides of a doorway, allowing carriages to slide up and down. This vertical arrangement enables multiple exercise configurations without requiring additional horizontal floor space, effectively trading horizontal area for vertical utilization.
2Stability of the object's composition
If the home gym device is anchored to the wall for stability, then the stability is improved, but the device protrudes substantially from the wall increasing space occupation
Solution Approach 1:
Instead of anchoring the device horizontally to the wall where it would protrude into the room, the invention attaches rail members vertically to the doorway frame. The exercise components operate in the vertical plane along the rails, maintaining stability while minimizing horizontal protrusion and preserving floor space.
Solution Approach 2:
The device extracts the anchoring function to the doorway structure itself rather than requiring a separate wall-mounted support structure. The doorway frame serves as the anchor, eliminating the need for additional wall-protruding support elements.
3Adaptability or versatility
If the elastic band attachment uses pins or wedges for configuration, then the configuration flexibility is improved, but the attachment stability and exercise variation are limited
Solution Approach 1:
The invention introduces carriages as intermediary components between the resistance bands and the rail members. The carriages slide along the rails and provide structured attachment points for the resistance bands, combining the flexibility of adjustable positioning with stable, reliable connections. The carriage-rail interface maintains stability while allowing configuration changes.
4Area of stationary object
If the device attaches to the face of the door with fixed horizontal bars, then the space conformity is improved, but the configuration variation is limited
Solution Approach 1:
The device replaces fixed horizontal bars with dynamic, slidable carriages that can be positioned at various heights along vertical rails. This dynamic configuration allows users to adjust the setup for different exercises while maintaining compact attachment to the doorway, providing configuration variation without sacrificing space conformity.
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 device provides a wide range of exercises with enhanced stability and ease of configuration, accommodating different resistance levels and athletic accessories, effectively substituting for a complete gym within limited space without obstructing doorways.
Implementation Method 1
The elastic band can be used for numerous exercises and the elasticity property offers the user varying degrees of resistance
Implementation Method 2
A first carriage is slidably engaged with the first vertical rail member and is sized and configured to move longitudinally along the first vertical rail member
Data Source
AI summary
An exercise device for use in a doorway including resistance bands extending from slidable carriages is provided. The exercise device includes a pair of vertical rail members attachable to sides of a doorway. The vertical rail members are engageable with carriages such that the carriages are capable of being slid longitudinally along the vertical rail members. Resistance bands extend along the vertical rail members and extend out from the carriages. The tension in the resistance bands may be altered by manipulating the distance between the carriages. The resistance bands extending from the carriages are attachable at each end to an athletic accessory such as a hand grip, belt, or crossbar. A pull-up bar may also be attached to the exercise device, the pull-up bar capable of vibration for enhanced performance.