Pull-Up Bar Shock Absorber Mounts for Controlled Rotation
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Solution Overview
Problem
Existing pull up bar systems lack shock absorption, allow for excessive force transmission to the body, do not allow rotation, and are rigid, making them prone to causing fatigue, strain, and injury, and are difficult to install or remove without tools.
Innovation Solution
A pull up bar system incorporating elastomer mounts that absorb and dampen forces, allow for controlled rotation, and can be easily coupled and uncoupled without tools, featuring a combination of elastomer blocks, support brackets, and u-shaped latch assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bar is welded to the support structures, then the bar is permanently coupled and structurally stable, but the system is rigid and does not allow bars to be changed easily
Solution Approach 1:
The system divides the mounting connection into separate components: a support bracket fixed to the structure and a bar interface that can be independently attached and detached. This segmentation allows the bar to be changed easily while maintaining structural stability through the bracket's fixed connection.
Solution Approach 2:
The mounting system transitions from a static welded connection to a dynamic removable connection. The bar interface can be attached and detached as needed, providing adaptability while the support bracket maintains structural stability when engaged.
2Ease of operation
If the bar is coupled with threaded fasteners, then the bar can be installed or removed, but tools are required and the system remains rigid
Solution Approach 1:
The bar interface is designed to be self-contained with integrated attachment and detachment mechanisms. The user can operate the system without external tools, as the interface itself provides all necessary functions for mounting and unmounting the bar.
3Stability of the object's composition
If the bar is rigidly mounted, then the bar does not rotate, but exercises cause significant forces to muscles and joints without shock absorption
Solution Approach 1:
The support bracket incorporates shock-absorbing elements and flexible mounting features that cushion forces before they are transmitted to the bar and user. This beforehand cushioning reduces the impact of exercise forces on the body while maintaining bar stability.
Solution Approach 2:
The mounting system changes the mechanical parameters of the connection from completely rigid to semi-flexible. The support bracket allows for controlled movement and shock absorption while maintaining sufficient stability for exercise performance.
4Reliability
If the bar is rigidly mounted, then structural stability is maintained, but the system does not allow controlled rotation
Solution Approach 1:
The support bracket incorporates rotational degrees of freedom that allow the bar to rotate in a controlled manner. This dynamic capability enables exercises requiring rotation while maintaining structural stability through the bracket's secure mounting to the support structure.
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 reduces fatigue and strain by absorbing forces, allows for controlled rotation, and facilitates easy installation and removal, enhancing user safety and convenience.
Implementation Method 1
a first block coupled to the first bar end, the first block containing a first shock absorbing non-metal material
Data Source
AI summary
An exercise system for pull up exercises can include a bar, a first block, a first support bracket, and a first u-shaped pocket member. The bar can have a first bar end and a second bar end. The first block can be coupled to the first bar end, and the first block can contain a shock absorbing non-metal material. The first u-shaped pocket member can protrude from the first support bracket. The first u-shaped pocket member can be configured to at least partially mate with the first block such that when the first block slidably fits into the first u-shaped pocket member, the first block is restricted from rotating within the first u-shaped pocket member.