Walker Adapter System With Adjustable Armrests and Brakes
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Solution Overview
Problem
Standard rolling walkers cause strain and pain on users' wrists, hands, arms, back, and body due to the downward orientation of hand rests and lack of adjustable arm rest rotation and vertical frame attachment.
Innovation Solution
An adapter system for walkers that includes an attachment assembly with a bracket assembly allowing armrest support above or away from the telescoping tube, a brake assembly for movement control, and adjustable components like a vertical bracket with latching and pivot pins, enabling comfortable positioning and pain relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the hand rests are oriented downward in standard rolling walkers, then the walker structure is simple, but the user experiences strain and pain on wrists, hands, arms, back and body
Solution Approach 1:
The invention divides the walker into functional modules: a U-shaped bracket assembly that attaches to the telescoping tube, separate armrest supports that can be positioned above the tube, and independent brake assemblies. This segmentation allows each component to be optimized for its specific function while reducing overall strain on the user.
Solution Approach 2:
The invention transitions the armrest support from a downward orientation (standard walker design) to an upward orientation above the telescoping tube. This dimensional change in the vertical axis fundamentally alters the ergonomics, allowing users to rest their arms in a more natural position that reduces strain on the wrists, hands, and back.
2Adaptability or versatility
If the armrests are fixed in position, then the walker structure is simple, but the user cannot adjust for comfort or different usage scenarios
Solution Approach 1:
The bracket assembly incorporates rotational capability through pivot pins and latching mechanisms, allowing the armrest supports to be dynamically adjusted between different positions. The U-shaped bracket can rotate about the telescoping tube axis, and armrests can be positioned at various heights and angles, transforming a static structure into a dynamic, adaptable system.
Solution Approach 2:
The invention enables multiple adjustable parameters including the rotational angle of the U-shaped bracket, the vertical position of armrest supports, and the distance between the brake handle and hand grip handle. These parameter changes allow the same basic structure to accommodate different user preferences and usage scenarios without requiring multiple different walker designs.
3Adaptability or versatility
If the brake handle is fixed at a standard distance from the hand grip handle, then the walker is simple to manufacture, but it cannot accommodate users with different hand sizes or grip preferences
Solution Approach 1:
The brake assembly incorporates an adjustable mechanism that allows the brake handle to be repositioned along the cable routing path. This dynamic adjustment capability enables users with different hand sizes and grip preferences to position the brake handle at an optimal distance from the hand grip handle, while the modular cable and bracket design keeps the manufacturing process relatively simple.
Data Source
AI summary
An adapter system can be used on a walker having a walker tube attached to a walker telescoping tube. The adapter system has an attachment assembly that is configured to connect the adapter system to the walker telescoping tube. A bracket assembly is connected to the attachment assembly. The bracket assembly is configured in a first mode of operation to provide an armrest support above the walker telescoping tube and in a second mode of operation to be located away from the walker telescoping tube. A brake assembly is attached to a bracket assembly. The brake assembly is configured to enable movement of a brake adjustment screw to stop or slow movement of the walker and also act as a means of controlling the distance between the brake handle and the vertical hand handle.