Folding Rear Drive Elliptical Mechanism
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Solution Overview
Problem
Conventional elliptical exercise machines occupy substantial space in residential settings and existing space-saving designs often compromise on performance or convenience.
Innovation Solution
An elliptical exercise machine with a pivotable second assembly that folds onto a first assembly without disassembling operational components, using a locking mechanism to maintain the folded position, allowing for easy storage and transportation while maintaining operational relationships between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elliptical machine is designed with a fixed structure to maintain operational stability, then reliability is improved, but space occupancy increases
Solution Approach 1:
The patent applies the dynamics principle by designing a folding mechanism that allows the elliptical machine to transition between a horizontal operational configuration and a vertical storage configuration. The frame includes pivot joints and locking mechanisms that enable stable operation when horizontal and compact storage when vertical, resolving the contradiction between operational stability and space occupancy.
2Area of stationary object
If the elliptical machine is designed to fold for space saving, then space occupancy is reduced, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the frame into modular sections connected by pivot joints. The frame includes a base section, an upright section, and a connecting section with pivot joints that allow folding. This segmentation enables the folding function while keeping each individual component relatively simple, resolving the contradiction between space-saving capability and structural complexity.
3Reliability
If the elliptical machine uses a locking mechanism to maintain folded position, then reliability of storage position is improved, but device complexity increases
Solution Approach 1:
The patent applies self-service through spring-loaded locking mechanisms that automatically engage when the frame is folded to its vertical storage position. The springs provide the force to lock the pivot joints without requiring additional actuators or complex control systems, achieving reliable storage position stability while minimizing mechanism complexity.
Data Source
AI summary
Embodiments of an elliptical exercise machine are provided including an elliptical exercise machine having a rear mechanism that is foldable or collapsible from an operating position to a storage position. In one embodiment, the elliptical machine includes a first assembly pivotally coupled with a second assembly. The first assembly includes a first frame member, a rear rotational mechanism and first and second foot supports operably coupled with the rotational mechanism. The second assembly includes a second frame member, a first reciprocating arm and a second reciprocating arm. The second assembly may be displaced relative to the first assembly from an operating position to a storage position without having to alter the operational relationships of the components of the first assembly and without having to alter the operational relationships of the components of the second assembly.