Portable Headrest Ratchet and Telescoping Support Adjustment
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Solution Overview
Problem
Existing headrests often fail to provide adequate support for individuals during long periods of seated travel, leading to neck and back strain, and are limited in adjustability to accommodate different sizes and shapes, especially in vehicles and furniture where support is inadequate.
Innovation Solution
A portable headrest with a center plate and side plates connected by hinges, along with a ratchet assembly in the inner and outer rail assemblies, allowing for adjustable positioning to support the head and alleviate strain, featuring a telescoping design for height adjustment and secure attachment to various surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If headrests are designed with fixed positioning, then manufacturing simplicity is maintained, but adaptability to different users and positions is reduced
Solution Approach 1:
The headrest employs multiple movable components including telescoping rails that allow length adjustment, rotary joints that enable angular positioning, and height-adjustment mechanisms. These dynamic elements transform a static headrest into an adaptable support system that can accommodate various user sizes, seating positions, and comfort preferences without requiring an overly complex overall structure.
Solution Approach 2:
The headrest is divided into multiple independent adjustable segments: the main body, side supports, headrest cushion, and positioning mechanisms. Each segment can be independently adjusted via rails, joints, and locking mechanisms, allowing granular customization of the support configuration while maintaining manufacturing simplicity through modular assembly.
2Adaptability or versatility
If headrests provide comprehensive support features, then comfort and strain reduction are improved, but portability and ease of storage are reduced
Solution Approach 1:
The headrest utilizes collapsible telescoping rails and foldable side supports that can be compacted into a space-efficient configuration for portability. When deployed, these same dynamic mechanisms provide comprehensive support adjustments. This dynamic transformation allows the headrest to offer full support functionality when in use while minimizing weight and volume for travel and storage.
Solution Approach 2:
The design incorporates nested components where smaller elements are housed within larger structures. The side supports nest within the main body, adjustment mechanisms are integrated into the rail structures, and the headrest cushion can be stored within the frame when not in use. This nesting principle reduces overall size and weight while maintaining all support functionalities.
Data Source
AI summary
A portable headrest is provided that includes a center plate, a first side plate, a second side plate, the center plate, the first side plate and the second side plate configured to support a human head. The headrest further includes a first hinge mechanism to couple the first side plate to the center plate, the first side plate configured to rotate about the first hinge mechanism relative to the center plate, a second hinge mechanism to couple the second side plate to the center plate, the second side plate configured to rotate about the second hinge mechanism relative to the center plate, an inner rail assembly, the inner rail assembly including a ratchet assembly to couple the inner rail assembly to the center plate such that the inner rail assembly extends angularly from the center plate, the ratchet assembly configured to allow the center plate to rotate relative to the inner rail assembly and an outer rail assembly, the inner rail assembly sized and configured to slide freely within the outer rail assembly.