Rotating Exercise Arm for Cage-Mounted Weight Training

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Solution Overview

Problem

Existing exercise devices with vertically adjustable arms are cumbersome, difficult to connect to existing cages, and often rely on complex pulley systems, failing to provide easy and reliable vertical adjustment for both pushing and pulling exercises.

Innovation Solution

A rotatable exercise device with a horizontally extending axle connected to a weight support and exercise arm, allowing easy vertical adjustment between two positions via a locking mechanism, eliminating the need for pulleys and enabling direct or indirect connection to existing cage frame members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If vertically adjustable members are used in exercise devices, then both pushing and pulling exercises can be performed, but the members become heavy and difficult to use

Engineering Contradiction:
Improveability to perform both pushing and pulling exercisesVSAvoidease of vertical adjustment
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The exercise arm is made rotatable about a horizontal axle, allowing dynamic repositioning between upper and lower vertical positions. This rotational capability enables the same device to accommodate both pushing and pulling exercises without requiring heavy adjustable members, as the arm simply rotates to the needed position rather than moving vertically through a complex mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The exercise arm is divided into separable components: the arm itself, the horizontal axle, and the weight support. This segmentation allows the arm to be rotated independently about the axle while the weight support remains stationary, simplifying the adjustment mechanism and reducing the weight of moving components.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If vertically adjustable members are used in exercise devices, then adjustability is provided, but complex pulley systems are required

Engineering Contradiction:
Improvevertical adjustabilityVSAvoidcomplexity of pulley system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The complex pulley system is completely removed from the design. Instead of using pulleys to provide vertical adjustability, the invention uses a simple horizontal axle with a rotatable exercise arm. This extraction of the pulley system eliminates the associated complexity while maintaining the desired adjustability through direct rotational movement.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The complex mechanical pulley system is replaced with a simpler rotational mechanism consisting of a horizontal axle and a rotatable exercise arm. This substitution uses basic rotational mechanics rather than complex pulley arrangements, achieving the same adjustability function with significantly reduced mechanical complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If vertically adjustable members are used in exercise devices, then position adjustment is enabled, but the members are heavy and cumbersome

Engineering Contradiction:
Improvevertical position adjustmentVSAvoidweight of vertically adjustable member
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The exercise arm is designed to rotate dynamically about a fixed horizontal axle rather than moving vertically through a heavy adjustable mechanism. This rotational dynamic allows the arm to be repositioned between upper and lower locations without requiring the entire vertical adjustment mechanism to be heavy, as only the arm and axle need to be sufficiently lightweight.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system is segmented into the exercise arm, the horizontal axle, and the weight support. By separating the arm from the vertical adjustment mechanism, the arm can be made lightweight while the axle provides the necessary rotational support. This segmentation allows each component to be optimized for its specific function, reducing overall weight.

Inventive Principle:
Principle #1Segmentation

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 easy and reliable vertical adjustment of the exercise arm for both pushing and pulling exercises without complex pulley systems, facilitating use with existing cage constructions and providing a stable and versatile workout experience.

Implementation Method 1

A horizontally extending axle is rotatably mounted to the elongate support member... The elongate support member is grippable to be rotated about its rotatable mount to change the vertical position of the horizontally extending axle, the weight support and the exercise arm

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

The exercise arm has a second locking member configured to be engaged and disengaged from the first locking member to permit the exercise arm, when the locking members are disengaged, to be rotated about the horizontally extending axle

Methodology Applied
Scientific EffectMechanical locking: Mechanical Fastener

Implementation Method 3

The weight support can be of any desired configuration, provided that it is connected to the horizontally extended axle and is capable of receiving one or more weights to provide a resisting force to the rotational movement of the exercise arm during a pulling or pushing exercise

Methodology Applied
Scientific EffectGravitational force: Gravitation

Data Source

PatentUS11944861B1Exercise device with vertically adjustable exercise arm
Publication Date: 2024.04.02 GOLDBERG SERGE
  • US11944861B1 patent drawing
  • US11944861B1 patent drawing
  • US11944861B1 patent drawing

AI summary

An exercise device includes an elongate support member having opposed ends and being rotatably mounted through either directly to—or through an attachment member to a mounting member intermediate the opposed ends of the elongate support member. A horizontally extending axle is rotatably mounted to the elongate support member adjacent one the opposed ends. The horizontally extending axle is connected to a weight support and to an exercise arm. The elongate support member is grippable to permit its rotation about its rotatable mount to change the vertical position of the horizontally extending axle and the weight support and exercise arm connected thereto. An attachment member configured be connected to the mounting member in a desired location also constitutes a part of the invention.