Folding Frame Foot Assembly With Pivot Pin
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Solution Overview
Problem
Existing folding frame systems with V-shaped leg assemblies lack a robust folding foot assembly, which can lead to difficulties in erecting and dismantling due to potential crushing of components and instability on uneven surfaces.
Innovation Solution
A foot assembly comprising a first U-shaped bracket, a second U-shaped bracket, and a cylindrical foot member, all pivotable relative to a pivot pin, with the brackets receiving the bottom ends of the leg struts and allowing pivotal movement, enhancing stability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple foot assembly is used in folding frame systems, then the device complexity is reduced, but the stability and reliability of the system deteriorates
Solution Approach 1:
The foot assembly is segmented into multiple functional components: U-shaped brackets for attachment, pivot pins for rotation, and foot members for ground contact. This segmentation allows each component to perform its specific function while maintaining overall system stability without excessive complexity.
Solution Approach 2:
The foot assembly incorporates pivot connections that allow dynamic adjustment of the foot angle relative to the leg struts. This dynamic capability enables the foot to adapt to uneven surfaces while maintaining a relatively simple structural design, resolving the contradiction between simplicity and stability.
2Strength
If the foot assembly is made more robust to prevent crushing, then the strength and reliability improve, but the ease of operation for erection and dismantling deteriorates
Solution Approach 1:
The pivot connections enable the foot assembly to dynamically adjust during erection and dismantling operations. The foot can rotate to accommodate different positions and surfaces, making the robust structure easier to manipulate during assembly while maintaining its strength during use.
Solution Approach 2:
By segmenting the foot assembly into separate brackets, pivot pins, and foot members, the design maintains strength through proper connection geometry while enabling easier operation through modular assembly. Each segment can be independently positioned and secured.
3Manufacturing precision
If fixed foot assemblies are used, then the manufacturing precision can be maintained, but the adaptability to various surfaces deteriorates
Solution Approach 1:
The pivot connections transform the fixed foot assembly into a dynamic structure that can adapt to various surface conditions. The foot can rotate to angle appropriate for sloped or uneven surfaces while maintaining precise manufacturing of individual components. The precision is preserved in the manufactured parts while the assembly provides adaptability through movement.
Data Source
AI summary
A foot assembly for a V-leg assembly of a folding frame system includes a first U-shaped bracket having two legs connected by a web, a second U-shaped bracket having two legs connected b a web, a cylindrical foot member, and a pivot pin extending through a hole in the web of the first bracket, a hole in the foot member, and a hole in the web of the second bracket so that the first bracket, the foot member, and the second bracket are all pivotable relative to one another about the pivot pin.