Adjustable-Resistance Bench Seat for Multi-Mode Strength Training
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Solution Overview
Problem
Existing exercising devices lack versatility in training modes, often requiring multiple apparatuses for different workouts, leading to inefficiency and space wastage, and existing multifunctional devices are cumbersome to reconfigure.
Innovation Solution
A bench seat training structure with adjustable resistance, featuring a base frame, transmission units, retracting units, and adjustable resistance units, allowing for variable resistance and posture adjustments to simulate various exercises like dumbbell lifting, rowing, and stretching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple exercising apparatuses are purchased for different training modes, then training versatility is improved, but space occupation and cost increase
Solution Approach 1:
The patent integrates multiple training modes (leg extension, rowing, chest press, etc.) into a single exercising apparatus. The bench seat can be positioned at different locations along the guiding piece, and the pull cord can be routed through different pulleys, allowing one device to perform functions that would traditionally require multiple separate apparatuses, thereby reducing space occupation while maintaining training versatility
Solution Approach 2:
The bench seat is designed to be movable along the guiding piece rather than fixed, and the pull cord system allows dynamic reconfiguration of exercise paths. This dynamic adaptability enables the same apparatus to provide different training modes by simply repositioning components, achieving multi-functionality without requiring multiple separate devices
2Adaptability or versatility
If the rack unit is changed between horizontal and upright states for different exercises, then training versatility is improved, but device complexity and reconfiguration time increase
Solution Approach 1:
Instead of requiring the entire rack unit to be dismantled and reassembled in different configurations, the patent employs a dynamic bench seat that can be easily repositioned along the guiding piece. The pull cord system with multiple pulleys allows different exercise paths to be created without changing the fundamental structure, significantly reducing reconfiguration complexity while maintaining exercise variety
Solution Approach 2:
The patent divides the exercising system into independent functional modules: the bench seat, the guiding piece, the pull cord, and multiple pulleys. This segmentation allows each component to remain in place while combinations are changed by repositioning individual elements, avoiding the need to reconfigure the entire structure for different exercises
3Ease of manufacture
If fixed resistance is used in exercising devices, then device simplicity is maintained, but training effectiveness for different muscle groups is reduced
Solution Approach 1:
The patent incorporates an adjustable resistance unit that can change the resistance parameter during exercise. This allows the same simple apparatus structure to provide variable resistance levels, enabling effective training for different muscle groups and exercise intensities without complicating the overall device design
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 flexible adjustment of resistance for diverse training needs, reducing the risk of injury and optimizing space usage by integrating multiple exercises into a single apparatus.
Implementation Method 1
each transmission unit includes a pulley set, the pulley set includes a moving pulley and at least one fixed pulley, the pull cord wraps around the moving pulley and the fixed pulley
Implementation Method 2
The retracting unit includes a spindle, a transmission wheel, a one-way wheel, a retractor, a connecting piece, and an auxiliary pulley. The spindle is pivoted on the base frame, the transmission wheel is fixed on the spindle, and a one-way bearing is disposed between the one-way wheel and the spindle. The retractor is connected to the spindle, and the retractor includes a casing and a volute spring.
Data Source
AI summary
A bench seat training structure with adjustable resistance includes: a base frame extending in a horizontal direction and including first and second support portions on opposite ends thereof in the horizontal direction as well as a bench portion, the first and second support portions and the bench portion jointly defining a bottom space; a transmission unit disposed on the base frame and including a pull cord having a free end and a fixed end; and an adjustable resistance unit disposed in the bottom space, with the fixed end being directly or indirectly connected thereto so that when an operational force is applied to the free end, the pull cord is dragged to move and a resistance is applied to the fixed end. Therefore, an operator can apply a force onto either side of the base frame to select various training modes and to adjust the resistance at will.