Adjustable Push Handle Assembly for Strollers and Wheelchairs
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Solution Overview
Problem
Existing transport devices, such as strollers and wheelchairs, often have push handles designed for an average-sized person, causing inconvenience for users who are taller as they must bend to use them, leading to discomfort.
Innovation Solution
An adjustable handle system that can be removably attached to wheeled transport devices, featuring clamping mechanisms, telescopic push arms, and swiveling mechanisms, allowing users to customize the handle height, width, and angle, enabling one-handle or two-handle configurations to suit individual needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the push handle is designed for an average-sized person, then the device structure is simple and standardized, but taller users must bend to use it causing inconvenience
Solution Approach 1:
The push handle system incorporates adjustable components including telescopic arms that allow length modification, swiveling mechanisms for angle adjustment, and removable parts for reconfiguration. These dynamic elements enable the handle to adapt to different user heights and preferences, transforming a static average-design handle into a customizable system that accommodates various user needs without requiring multiple completely different handle designs.
Solution Approach 2:
The handle system is divided into separate modular components including push arms, horizontal bars, and coupling mechanisms that can be independently adjusted or removed. This segmentation allows users to customize the handle configuration by adjusting individual segments (such as extending push arms or repositioning horizontal bars) rather than requiring a complete handle replacement, thereby improving ease of operation while controlling overall system complexity.
2Adaptability or versatility
If the push handle is made non-customizable to maintain simplicity, then manufacturing is easier, but users cannot adjust height to fit their needs
Solution Approach 1:
The handle system employs universal coupling mechanisms and standardized adjustment components that can be used across different handle configurations. The same coupling mechanism can connect push arms to horizontal bars at various positions, and the telescopic arms can be extended or retracted using identical adjustment mechanisms. This universality enables multiple customization options (different heights, angles, and configurations) while maintaining relatively simple manufacturing processes through standardized parts and assembly procedures.
Solution Approach 2:
The handle system incorporates nested components where telescopic arms can be extended or retracted within their own structure, and adjustable segments can be nested within the overall handle assembly. This nesting approach allows for compact storage and easy adjustment without requiring completely separate components for each configuration option, thereby achieving adaptability while keeping manufacturing complexity manageable through integrated design.
3Ease of operation
If the handle system includes multiple adjustment mechanisms, then user comfort is improved, but the device becomes more complex
Solution Approach 1:
The handle system incorporates self-adjusting mechanisms such as telescopic arms with built-in locking features that allow users to easily extend or retract arms without requiring complex external adjustment devices. The swiveling mechanisms include integrated stops and locks that automatically engage at predetermined positions, enabling users to adjust the handle to their preferred configuration through simple manual operations rather than complex mechanical procedures, thereby improving comfort while limiting the increase in overall system complexity.
Data Source
AI summary
An apparatus configured to attached to a wheeled transport device is disclosed. The apparatus may include a first clamping mechanism and a second clamping mechanism configured to removably attach to the wheeled transport device. The apparatus may include a first push arm and a second push arm extending vertically from respective first clamping mechanism and second clamping mechanism. The apparatus may further include a horizontal bar configured to connect the first push arm and the second push arm. The apparatus may further include a first swiveling mechanism disposed between the first clamping mechanism and the first push arm and a second swiveling mechanism disposed between the second clamping mechanism and the second push arm. The first swiveling mechanism and the second swiveling mechanism may be configured to swivel the first push arm and the second push arm relative to the first clamping mechanism and the second clamping mechanism respectively.