Weight Rack Pulley Cable Layout for Space-Saving Multi-Exercise Training

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Solution Overview

Problem

Existing weightlifting machines that utilize cable-based resistance elements are limited in the number of exercises they can perform and require significant space and financial investment, posing challenges for small gyms and home gyms, and often face difficulties with shipping and assembly.

Innovation Solution

A weightlifting machine integrated with a weight rack system, featuring a frame with vertical and lateral frame members, a pulley assembly, and a cable system that redirects resistance through aligned holes in the frame members, allowing for multiple exercises with cost efficiency and easy installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable-based weightlifting machine is configured as a stand-alone machine or connected to a weight rack, then the resistance element can move in a controlled manner with direction alteration, but the machine requires significant space and financial expenditure

Engineering Contradiction:
Improvecontrolled resistance element movementVSAvoidgym floor space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent combines the cable-based weightlifting machine components (pulley assembly, cable system, grip members) with an existing weight rack structure. The pulley assembly mounts to the weight rack's frame members, and the cable system integrates with the rack's existing holes and structure, merging two separate systems into one unified apparatus that provides both storage and exercise functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The weight rack structure serves multiple functions: it acts as both a storage rack for weights and exercise equipment, and as the structural support for the cable-based weightlifting machine. The frame members with multiple holes provide universal mounting points for various exercises, allowing the same structure to support different pulley configurations for different workout routines.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a cable-based weightlifting machine is configured as a stand-alone machine or connected to a weight rack, then the resistance element can move in a controlled manner with direction alteration, but significant financial expenditure is required

Engineering Contradiction:
Improvecontrolled resistance element movementVSAvoidfinancial expenditure
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the cable-based weightlifting machine components (pulley assembly, cable system, grip members) with an existing weight rack structure. The pulley assembly mounts to the weight rack's frame members, and the cable system integrates with the rack's existing holes and structure, merging two separate systems into one unified apparatus that provides both storage and exercise functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The weight rack structure serves multiple functions: it acts as both a storage rack for weights and exercise equipment, and as the structural support for the cable-based weightlifting machine. The frame members with multiple holes provide universal mounting points for various exercises, allowing the same structure to support different pulley configurations for different workout routines.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If a cable-based weightlifting machine is configured as a stand-alone machine or connected to a weight rack, then the resistance element can move in a controlled manner with direction alteration, but difficulties with shipping and assembly are presented

Engineering Contradiction:
Improvecontrolled resistance element movementVSAvoidshipping and assembly
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The weightlifting machine is divided into separate modular components: the pulley assembly that mounts to the weight rack, the cable system that can be threaded through existing holes, and the grip members that attach to the cable ends. This segmentation allows each component to be shipped separately and assembled independently, reducing shipping complexity and assembly difficulty.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The weight rack structure is pre-configured with multiple holes in its frame members before the pulley assembly and cable system are installed. These pre-existing holes serve as ready-made mounting points and cable routing paths, eliminating the need for drilling or complex structural modifications during assembly.

Inventive Principle:
Principle #10Preliminary action

4Area of stationary object

If a traditional weight rack assembly is used, then space is reduced and cost is efficient, but the ability to perform multiple exercises with controlled resistance element movement is limited

Engineering Contradiction:
Improvegym floor spaceVSAvoidnumber of exercises
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The weight rack structure serves multiple functions: it acts as both a storage rack for weights and exercise equipment, and as the structural support for the cable-based weightlifting machine. The frame members with multiple holes provide universal mounting points for various exercises, allowing the same structure to support different pulley configurations for different workout routines.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The pulley assembly and cable system are configured to allow dynamic adjustment of exercise parameters. The cable can be routed through different combinations of holes in the frame members to change resistance directions and exercise types, and the grip members can be repositioned along the cable to adjust exercise mechanics, providing versatility within the compact rack structure.

Inventive Principle:
Principle #15Dynamics

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 performance of multiple exercises in a reduced space with cost efficiency and simplified assembly, utilizing existing weight rack structures.

Implementation Method 1

a weightlifting machine may utilize a pulley and a cable to redirect the movement of a resistance element

Methodology Applied
Scientific EffectPulley: Pulley

Data Source

PatentEP3863737B1Weightlifting machine
Publication Date: 2025.12.03 COULTER VENTURES LLC
  • EP3863737B1 patent drawingFigure 1
  • EP3863737B1 patent drawingFigure 2
  • EP3863737B1 patent drawingFigure 3

AI summary

A weightlifting machine that includes a pulley system and a cable system that attaches to a weight rack frame to allow a user to perform a weightlifting exercise. The pulley system may include a first pulley and a second pulley where the cable system engages each pulley. The cable system may have a first end connected to a grip attachment and a second end attached to a resistance element. The resistance element may include a resistance band, a weight support that holds a weight plate, a set of weight plates, or other type of resistance element. The cable system may extend from the pulley through an opening located one of the frame members that form the frame.