Adjustable Rollator Handrail Angles for Ergonomic Support

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Solution Overview

Problem

Existing rollators lack flexibility in adjusting the angle of their handrails, limiting their functionality and user comfort.

Innovation Solution

A rollator design that allows the first and second handrail tubes to be adjusted between two inclined states, with angles ranging from 80°-90° and 65°-75°, through rotatable and adjustable connections to the frame, enabling ergonomic positioning and multiple use states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the handrail tube is fixed on the frame, then the structure is simple and stable, but the rollator lacks flexibility and has single function

Engineering Contradiction:

Improvehandrail angle adjustment capabilityVSAvoidhandrail connection structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The handrail tube is changed from a fixed connection to a rotatable connection with the frame, allowing it to dynamically adjust between a first inclined state (80°-90°) and a second inclined state (65°-75°). This dynamic adjustment capability enables the rollator to adapt to different user needs while maintaining structural integrity through the rotatable joint mechanism.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the handrail angle is fixed, then the manufacturing is simple, but the user comfort and ergonomics are limited

Engineering Contradiction:

Improveuser comfort and convenienceVSAvoidhandrail assembly process

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The handrail tube's inclination angle parameter is made variable rather than fixed. The rotatable connection mechanism allows the handrail to be positioned at different angles (first inclined state at 80°-90° or second inclined state at 65°-75°), enabling ergonomic optimization for different users while using standard manufacturing processes for the modular components.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the rollator has single function, then the device complexity is low, but the adaptability to different use scenarios is poor

Engineering Contradiction:

Improvemultiple use statesVSAvoidadjusting mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The rollator is designed with multi-functionality through the adjustable handrail tube that can switch between different inclined states. This single adjustment mechanism enables the device to serve multiple functions: providing support at different angles for various user conditions, adapting to different walking styles, and accommodating different ergonomic preferences, all through one integrated rotatable connection system.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260090942A1rollator

Publication Date: 2026.04.02 SHENZHEN ASPIRED TECHNOLOGY CO LTD

AI summary

A rollator comprising a frame body, pedal assemblies, a backrest assembly, and a seat assembly. The frame body comprises a first frame, a second frame, and a connecting frame; the seat assembly is arranged on the connecting frame; the first frame is connected to the second frame by means of the connecting frame and can be folded towards the second frame; the pedal assemblies are rotatably connected or detachably mounted on the first frame and the second frame and are located below the connecting frame; the backrest assembly is rotatably connected or detachably mounted on the first frame and the second frame and are located above the connecting frame.