Chest Press Arm Quick Release Mechanism for Fast Arm Swapping
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Solution Overview
Problem
Existing exercise machines, such as chest press machines, lack efficient mechanisms for quickly and easily switching between different types of exercise arms, including rigid and flexible arms, which hinders user flexibility and convenience.
Innovation Solution
A quick release attachment mechanism featuring an elongated body with a curved aperture and a button assembly that pivots to lock or unlock, utilizing a biasing member to secure or release exercise arms, allowing for rapid interchangeability between various arm types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a traditional attachment mechanism is used for exercise arms, then the structure is simple, but the time required to switch between different arm types is excessive
Solution Approach 1:
The attachment mechanism is divided into separable components: a quick release button assembly, a body with aperture, and detachable exercise arms with rings. This segmentation allows the arms to be quickly detached and reattached without complex tools or procedures, directly reducing the time to switch between different arm types while maintaining ease of operation.
2Ease of operation
If a quick release mechanism is implemented, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The locking function is extracted into a separate button assembly that can be independently actuated. The button assembly with its extending portion and biasing member is positioned near the distal end of the body, allowing users to easily engage and disengage arms by simply pressing the button, without needing to manipulate complex multi-component mechanisms.
Solution Approach 2:
The biasing member automatically maintains the button assembly in the locked position and provides the force needed to engage the aperture with the ring. The system is self-actuating through the spring-loaded mechanism, reducing the user's operational effort while maintaining secure locking without requiring complex external actuation systems.
3Reliability
If a secure locking mechanism is used, then the reliability of arm attachment is high, but the ease of release is reduced
Solution Approach 1:
Instead of requiring force to maintain locking and release by removing that force, the mechanism is inverted: the default state is locked through the biasing member's inherent spring force, and release is achieved by applying minimal counteracting force through the button. This inversion allows secure attachment through passive spring pressure while enabling easy release through active button actuation.
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 seamless and efficient switching between different exercise arms, enhancing user convenience and versatility by allowing easy attachment and detachment with a simple operation, ensuring secure locking and easy adjustment of arm length.
Implementation Method 1
a biasing member that urges the extending portion of the button assembly into the locked position
Data Source
AI summary
A quick release mechanism for an exercise arm assembly enabling a user to switch exercise arms very quickly, the mechanism having: (a) an elongated body; (b) a curved aperture passing laterally across a distal end of the elongated body, cutting downwardly through the elongated body, and being angled towards the distal end of the elongated body; (c) a button assembly positioned near the distal end of the elongated body, moveable to either project into or project away from the aperture; and a biasing member that urges the extending portion of the button assembly into the locked position.