Arced Handle Bar with Adjustment Bracket for Rollator
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Solution Overview
Problem
Existing walker extension accessories do not adjust in height and angle relative to the user and are not configured for attachment to rollators, failing to meet the need for a position-adjustable accessory handle device that facilitates mounting, demounting, and maneuvering of rollators.
Innovation Solution
A position-adjustable accessory handle device with an arced handle bar that detachably attaches to a rollator in multiple adjustable heights and angles, featuring an adjustment bracket for frictionless pivoting and fixed angle orientation, allowing the handle bar to be positioned in multiple angular positions and securely fastened using various fasteners, accommodating different rollator styles and user preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed extension bar accessory is used, then the structure is simple and cost-effective, but the handle cannot be adjusted in height and angle relative to the user
Solution Approach 1:
The handle bar is designed with dynamic adjustability through multiple fastening holes at different heights and angles, allowing the user to reposition and secure the handle at various configurations. This transforms a static fixed handle into a dynamic adjustable one, resolving the contradiction between adaptability and complexity by providing adjustability through a relatively simple hole-and-fastener mechanism rather than complex mechanical adjustment devices.
Solution Approach 2:
The invention changes the positional parameters of the handle bar by providing multiple pre-determined height and angle positions through spaced-apart fastening holes. This allows the handle to be adjusted to different heights and angles relative to the rollator, achieving adaptability without requiring continuous adjustment mechanisms, thus maintaining relative simplicity.
2Ease of operation
If a frictionless pivoting articulation is implemented, then the handle bar can be easily positioned at multiple angles, but the manufacturing precision required for smooth articulation increases
Solution Approach 1:
The articulation mechanism is segmented into discrete angular positions defined by multiple fastening holes at specific angles on the adjustment bracket. Instead of requiring continuous smooth pivoting, the system divides the adjustment range into discrete steps, allowing easy repositioning through simple fastener manipulation while reducing the manufacturing precision requirements for the pivoting mechanism itself.
Solution Approach 2:
The adjustment bracket acts as an intermediary component between the handle bar and the rollator handle. It provides the frictionless pivoting articulation feature that enables easy angular adjustment, while the multiple fastening holes provide discrete positioning points. This intermediary structure separates the pivoting function from the positioning function, easing operational requirements.
3Adaptability or versatility
If multiple fastening holes are provided for height adjustment, then the handle can be secured at multiple heights, but the number of parts and potential attachment points increases
Solution Approach 1:
The adjustment bracket serves multiple functions simultaneously: it provides the pivoting articulation for angular adjustment, it contains multiple fastening holes for height adjustment, and it acts as the attachment interface to the rollator handle. By consolidating these functions into a single multi-functional component, the invention achieves high adaptability without proportionally increasing device complexity.
Solution Approach 2:
The invention merges the angular adjustment mechanism with the height adjustment mechanism by integrating multiple fastening holes at different angles and heights into a single adjustment bracket structure. This consolidation allows both height and angle adjustments to be achieved through one unified component rather than separate mechanisms, reducing overall complexity.
Data Source
AI summary
A position-adjustable accessory handle device helps a user maneuver a rollator. The handle device provides an arced handle bar that detachably fastens to a rollator handle, serving as an extension. An adjustment bracket fits between handle bar and rollator handle, allowing the handle bar to adjustably articulate in height and angle, relative to the rollator handle. The handle bar has a short proximal section and a long distal section. An arced bridge extends therebetween. The bridge orients the proximal section towards the user, and allows for fastening to different rollators. The proximal section of handle bar has a grip member for gripping. Fastening holes form in the distal section of handle bar. An adjustment bracket fits between handle bar and rollator handle. This creates frictionless pivoting articulation of the handle bar; and to enable the handle bar to be fixedly oriented at a set angle relative to rollator handle.