Multifunctional Arm Cranking Exerciser with Quick Release Pin
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Solution Overview
Problem
Conventional arm exercisers lack versatility, with complex mechanisms that are difficult to maintain, boring exercise routines due to fixed crank separation, and inability to attach to other exercising devices, limiting user engagement and functionality.
Innovation Solution
A multifunctional arm cranking exerciser with an omnidirectional support bracket, quick release pin device for adjustable crank positioning, and damping adjustment device, allowing for collaborative, synchronous, and independent operation modes, as well as attachment to leg exercisers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional arm exercisers use fixed crank separation at 180 degrees, then the structure is simple, but the exercise becomes boring and not interesting
Solution Approach 1:
The patent applies the dynamics principle by making the crank positioning adjustable rather than fixed. The quick release pin device allows users to dynamically change the angular separation between cranks during exercise, enabling transitions between 180-degree separation (traditional mode) and other configurations. This dynamic adaptability makes exercise more interesting while maintaining structural simplicity through a straightforward pin-based positioning system.
Solution Approach 2:
The patent segments the crank positioning function into discrete angular positions using the quick release pin device. Instead of continuous adjustment, the system divides the possible crank orientations into specific segments (e.g., 180-degree separation, 0-degree alignment), allowing users to switch between predefined exercise modes. This segmentation simplifies the mechanism while providing exercise variety.
2Adaptability or versatility
If arm exercisers are stand-alone devices, then the structure is simple, but they cannot be attached to other exercising devices
Solution Approach 1:
The patent applies the universality principle through the omnidirectional support bracket assembly, which enables the arm exerciser to serve multiple functions. The bracket can be attached to various surfaces (walls, ceilings, floors) and can also connect to leg exercisers, transforming the stand-alone device into a multi-functional exercise station. This universal attachment capability is achieved through a standardized bracket design with multiple mounting options rather than complex custom interfaces.
Solution Approach 2:
The patent applies the dimensionality change principle by enabling attachment in multiple spatial dimensions. The omnidirectional support bracket allows installation on walls (vertical dimension), ceilings (overhead dimension), and floors (horizontal dimension), as well as connection to leg exercisers (combined hand-leg exercise dimension). This multi-dimensional attachment capability expands the device's versatility without requiring complex mechanisms for each orientation.
3Productivity
If damping is fixed, then the mechanism is simple, but exercising efficiency cannot be optimized
Solution Approach 1:
The patent applies the parameter changes principle through the damping adjustment device, which allows users to modify the damping parameter according to their exercise needs and fitness level. The mechanism provides adjustable damping levels that can be changed during exercise sessions, enabling optimization of exercising efficiency. The adjustment mechanism maintains relative simplicity through a user-friendly interface that modifies the damping parameter without requiring complex mechanical changes.
Data Source
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AI summary
A multifunctional arm cranking exerciser includes an omnidirectional support bracket assembly, which comprises a five-way bracket mounted to a top thereof and having a left side to which a left arm exercising device is mounted and a right side to which a right arm exercising device is mounted. Also mounted on the five-way bracket are a damping adjustment device and a quick release pin device. The quick release pin device allows for quick coupling and positioning of left and right arm cranks of the left and right arm exercising devices at an angular difference of 0 degree or 180 degrees and also allows for quick release and decoupling of the left and right arm exercising devices to be independent of each other. The damping adjustment device adjusts and regulates a level of damping for achieving an effect of efficient exercising.