Foldable Cane Seat Structure for Stable Expanded Support
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Solution Overview
Problem
Cane with a seat in the expanded state experiences unstable supporting due to different angles of deflection of support rods, leading to potential instability and safety concerns.
Innovation Solution
A cane with a seat design featuring a support assembly with a main rod and auxiliary rods that form an isosceles triangle in the expanded state, supported by a symmetrically located seat assembly, ensuring balanced forces and stable support through a rotatable connection system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cane uses a collapsed state structure for portability, then the ease of operation is improved, but the supporting stability in expanded state deteriorates due to unequal force distribution on support rods
Solution Approach 1:
The patent applies asymmetry by designing the support rod configuration to be non-symmetric in the collapsed state, allowing the rods to be positioned at different angles (e.g., 45 degrees and 60 degrees) relative to the main rod. This asymmetric arrangement enables the rods to experience different forces during expansion while maintaining overall structural balance, thereby achieving both portability and stable support in the expanded state.
2Adaptability or versatility
If the support rods are positioned at different angles to enable expansion, then the adaptability is improved, but the supporting stability deteriorates due to unequal force distribution
Solution Approach 1:
The patent utilizes parameter changes by allowing the support rods to be positioned at different angular parameters (e.g., 45 degrees and 60 degrees relative to the main rod) while maintaining a balanced force distribution system. This parameter variation enables the structure to expand adaptably while the asymmetric design compensates for unequal force distribution, preserving supporting stability during the expansion process.
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 design provides enhanced stability and safety by balancing forces on the auxiliary rods, preventing toppling and ensuring a stable support structure for users, particularly in the expanded state.
Implementation Method 1
the main rod and the auxiliary rod penetrate through the support base and are rotatably connected to the support base
Implementation Method 2
the slider is in sliding fit with the main rod and is configured to drive the support assembly to switch between a collapsed state and an expanded state
Implementation Method 3
the two auxiliary rods form an included angle with the main rod and are symmetrically located at two opposite sides of the main rod
Data Source
AI summary
A cane with a seat includes a support assembly and a seat assembly, where the support assembly includes a support base, a slider, a main rod, and two auxiliary rods; the main rod and the auxiliary rod penetrate through the support base and are rotatably connected to the support base; two opposite ends of each of the main rod and the auxiliary rod are stretched out of the support base; the slider is in sliding fit with the main rod and is configured to drive the support assembly to switch between a collapsed state and an expanded state; the seat assembly includes a main seat surface and two auxiliary seat surfaces; the two auxiliary seat surfaces are rotatably connected to two opposite sides of the main seat surface in one-to-one correspondence; the main seat surface is rotatably connected to the slider.