Telescopic Forearm Crutch with Locking Base for Compact Storage
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Solution Overview
Problem
Conventional forearm crutches have a fixed and unadjustable length, making them inconvenient for storage and not adaptable to different user heights.
Innovation Solution
A forearm crutch design featuring a telescopic main cane and forearm support assembly with adjustable bases and locking mechanisms, allowing the crutch to be shortened for storage and adjusted in length to fit various users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the forearm crutch has a long and unadjustable length, then it provides sufficient support and stability for patients, but it occupies large storage space and is inconvenient for storage
Solution Approach 1:
The crutch is divided into multiple telescopic segments (first telescopic component and second telescopic component) that can slide relative to each other. This segmentation allows the crutch to be extended to a long length for stable support during use, and collapsed to a compact size for convenient storage, resolving the contradiction between stability and storage space.
Solution Approach 2:
The crutch employs dynamic telescopic mechanisms with locking assemblies that allow the length to be adjusted between extended and retracted states. The locking assembly secures the telescopic components at desired positions, providing stable support when extended, while allowing compact retraction when the locking assembly is released for storage.
2Ease of manufacture
If the forearm crutch has a fixed length, then the structure is simple and easy to manufacture, but it cannot be adjusted to fit different user heights
Solution Approach 1:
The crutch incorporates telescopic components with locking assemblies that enable length adjustment to accommodate different user heights. The locking assembly maintains structural integrity by securing the telescopic components at selected positions, while still allowing adjustment when needed, thus providing adaptability without significantly complicating the manufacturing process.
Data Source
AI summary
A forearm crutch has a cane assembly including a main cane and a hand grip mounted on the main cane, an adjustable base slidably mounted on the main cane, a forearm support assembly including a forearm support cane securely attached to the adjustable base and a cuff mounted on the forearm support cane, and a first locking assembly selectively locks the adjustable base in place on the main cane. When the first locking assembly is unlocked, the adjustable base and the forearm support assembly can slide along the main cane. By sliding the adjustable base and the forearm support assembly downward, the forearm crutch can be shortened and occupy small room, so as to be suitable for storage.