Modular Cable Machine Exercise System for Home Gyms
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Solution Overview
Problem
Traditional cable machines have a large footprint and high cost, limiting their practicality in micro and home gyms, and they restrict the range of exercises that can be performed due to fixed weight increments and limited adjustability.
Innovation Solution
A portable cable machine exercise system comprising upper and lower pulley assemblies, an anchor assembly, and a cable that can be easily attached to and detached from standard uprights, allowing for adjustable resistance and various exercise modes by using a cable threaded through the pulleys and anchored with a resistance system that can include weights, elastic, or pneumatic units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional cable machine is used, then a wide array of exercise movements can be performed, but the footprint and cost become impractical for micro and home gyms
Solution Approach 1:
The traditional cable machine is divided into separate functional modules: pulley assemblies, cable systems, and resistance mechanisms. Each module can be independently attached to vertical frames at different heights, allowing the system to provide full cable machine functionality while occupying minimal floor space. The pulley assemblies can be mounted on standard vertical frames, enabling exercises from floor level up to seven feet high without requiring a large dedicated machine footprint.
2Force
If a traditional cable machine with fixed weight stack is used, then resistance can be provided, but the user is limited to fixed weight increments and total load
Solution Approach 1:
The resistance system transitions from a fixed weight stack to a dynamic, adjustable configuration. Users can attach different resistance mechanisms (weight stacks, spring stacks, elastic bands, or hydraulic/pneumatic units) to the pulley assemblies and adjust their positions along the vertical frames. This allows continuous variation of resistance magnitude and distribution, enabling users to customize load for each exercise movement rather than being constrained by predetermined weight increments.
Solution Approach 2:
The system employs universal attachment mechanisms that allow multiple types of resistance mechanisms to be interchangeably mounted on the same pulley assemblies and vertical frames. Whether using traditional weight stacks, spring stacks, elastic resistance, or hydraulic units, the same structural platform supports all configurations, providing versatility in resistance selection while maintaining a compact footprint.
3Ease of operation
If a standalone cable machine is used, then pulling and pressing movements can be performed, but the cost becomes prohibitive for home gyms
Solution Approach 1:
The invention merges the functionality of an entire cable machine system into a modular configuration that can be integrated with existing vertical frames (such as squat racks or wall-mounted frames). By combining the pulley assemblies, cable systems, and resistance mechanisms into attachable modules rather than a monolithic machine, the system achieves full cable machine functionality at a lower cost, making it accessible for home gym applications.
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 provides a compact, cost-effective solution for a wide range of exercises, allowing users to adjust resistance and angles, thereby overcoming the limitations of traditional cable machines in terms of space and versatility.
Implementation Method 1
The cable is threaded thru the upper pulley assembly and the lower pulley assembly, pulling on the handle is opposed by the resistance
Implementation Method 2
The anchor system may include a spring biasing the wedge toward the opening in the block
Implementation Method 3
The anchor assembly may include a wedge with two opposed, straight sides angled together toward a narrow end of the wedge, and a block with a recess shaped and sized to accept the wedge
Data Source
AI summary
A portable exercise system that can be attached to the uprights on any commonly available training rig, squat stand, or power rack, and for resistance can use any attachable weight. The system includes an upper pulley assembly, a lower pulley assembly and an anchor assembly. The anchor assembly utilizes a wedge and block to set the cable length and is adapted to attach the weights. The upper pulley assembly includes pulleys to keep the cable aligned and the resistance coming from above. The lower pulley assembly could be hinged for an additional degree of freedom. The cable runs through the lower pulleys, to the upper pulleys, and down to the anchor and weights. The other end of the cable has a fixed loop for attaching a handle for the user.