Mobility Walker With Concave Front Legs And Transverse Handle

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Solution Overview

Problem

Existing mobility walkers with 'hands at the side' designs are difficult to stabilize, hinder proper posture, and restrict a normal gait due to their design, which requires users to bend forward and limits foot movement, causing instability and inconsistent walking patterns.

Innovation Solution

A mobility walker with a transverse handle and concave front legs that allows users to grasp the handle with their hands extended in front, providing stability and enabling a normal gait by distributing force efficiently through the concave shape and positioning the center of gravity forward of the handle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If hands at the side design is used, then user can grasp handles at sides, but user must bend forward and cannot maintain erect posture

Engineering Contradiction:

Improvehandle graspingVSAvoidposture deterioration

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the conventional handle position from the sides to the front center of the walker. This allows users to grasp the handle with hands extended forward in a natural position, eliminating the need to bend forward and maintain erect posture during operation.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If hands at the side design is used, then handles are positioned at sides, but user cannot walk with normal gait due to restricted leg movement

Engineering Contradiction:

Improvehandle positioningVSAvoidgait restriction

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent removes the handles from the side positions where they interfere with leg movement. By extracting the handles to the front center position, the design eliminates the interference with the user's legs and feet, allowing for normal gait and stride during walking.

Inventive Principle:

Principle #2Taking out (Extraction)

3Stability of the object's composition

If center of gravity is positioned forward of handle, then walker provides stable support, but requires specific structural configuration

Engineering Contradiction:

Improvewalker stabilityVSAvoidstructural configuration

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent employs concave curvature in the front legs of the walker to position the center of gravity forward of the handle. This curved structural configuration achieves the desired stability while maintaining structural integrity and support.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS10111803B2Mobility walker

Publication Date: 2018.10.30 JULIAN VICKI L

AI summary

A mobility walker comprising a pair of rear legs and a pair of front legs, each configured to support the mobility walker on the ground. The mobility walker further comprises a transverse handle extending laterally across a width of the mobility walker. The transverse handle is configured to be grasped by a user when operating the mobility walker. At least sixty percent of the length of each of the front legs is formed with a concave curvature, as viewed from a front of the mobility walker.