Variable Contour Pillow with Internal Segmentation for Fill Stability
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Solution Overview
Problem
Conventional pillows lack the ability to maintain arbitrary shapes and varying thickness and density along dimensions, leading to inadequate cushioning for different body areas, especially bony regions, and often feature external seams or hardware that compromise comfort during sleep.
Innovation Solution
A method of constructing pillows with interconnectible thickness controlling members, such as ribbons with g-hooks and loops, that allow for variable thickness and density along dimensions, ensuring comfortable cushioning without external seams or hardware, by cutting pillow covers to desired shapes and attaching these members internally to control fill distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fiber fill is used to achieve softness and flexibility, then the pillow can accommodate varying fill densities at different locations, but the fill material moves or shifts under pressure, reducing cushioning ability
Solution Approach 1:
The pillow is divided into multiple compartments or chambers that separately contain different fill materials or densities. This segmentation prevents fill migration between areas while maintaining the ability to provide different cushioning characteristics in different regions, resolving the contradiction between adaptability and reliability.
Solution Approach 2:
A baffle or barrier structure is introduced as an intermediary element between fill material sections. This baffle prevents the fill from moving freely under pressure while still allowing the pillow to maintain varying densities, thus preserving cushioning ability while enabling density variation.
2Reliability
If the pillow size is limited to prevent fill movement, then the fill stays in place, but the pillow cannot provide adequate cushioning for larger body areas
Solution Approach 1:
The larger pillow is segmented into multiple smaller compartments, each small enough to contain its fill effectively. This allows the overall pillow to cover larger body areas while each segment maintains fill stability, resolving the contradiction between area and reliability.
3Reliability
If tufting is used to hold fill in place, then the fill is restrained within limited areas, but hard components are added to the pillow exterior, compromising comfort
Solution Approach 1:
The tufting buttons or hard anchoring components are removed from the exterior design. Instead, the fill containment function is achieved through internal baffles or compartment structures that are hidden within the pillow, eliminating the harmful external hardness while maintaining fill containment reliability.
4Strength
If binding or piping is added to finish external seams, then the seam structure is strengthened, but the pillow surface becomes more rigid and uncomfortable for users
Solution Approach 1:
The binding or piping elements are removed from the pillow exterior. The seam strength is maintained through alternative internal reinforcement methods or by using flexible seam construction techniques that do not add external rigidity, thus eliminating the harmful surface hardness while preserving structural integrity.
5Manufacturing precision
If pre-cut foam is used to determine fill density, then the density is consistent with the foam's inherent qualities, but adjusting fill density requires specifying different foam types, increasing complexity
Solution Approach 1:
Different fill densities are achieved by using different fill materials or configurations in different local regions of the pillow, rather than requiring different foam types throughout. This allows density adjustment in specific areas without increasing overall manufacturing complexity, resolving the contradiction between precision and device complexity.
Data Source
AI summary
Variable contour pillow and method of making the same, comprising: a pillow cover preferably with internal seams, a plurality of internal interconnecting members that define the thickness and/or taper of the pillow in desired locations along the length and/or width of the pillow, the method comprising steps of attaching the interconnecting members during the process of filling the pillow, alternately preferably hand filling behind an interconnecting member, interconnecting the interconnecting member, filling in front of the first interconnecting member and a next interconnecting member, interconnecting the next interconnecting member, and so on, until the pillow is completely filled and desired multiple levels of fill and/or surface tapers are achieved, with specific application to construction of a form-fitting body pillow with variable shape and thickness of fill material.