Viscoelastic Seating Pad for Bridging Seat Gaps and Pinch Points
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Public transportation seats, particularly those for long-distance travel, are often uncomfortable due to structural gaps, creases, and seams that cause pressure points and discomfort, and existing solutions like pillows and mats do not adequately address these issues.
Innovation Solution
A seating pad assembly made of viscoelastic material with a rectangular shape and adjustable dimensions to fit various seat types, featuring a cover that is removable and stretchable to conform to the seat and passenger, providing support across pinch points and absorbing vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a seat is designed with movable components to enable reclining, then comfort during long trips is improved, but structural gaps and seams are created that cause pressure points and discomfort
Solution Approach 1:
A continuous cushioning layer is introduced as an intermediary element between the passenger and the seat structure. This layer spans across the gaps and seams created by movable seat components, distributing body weight evenly and eliminating pressure points while allowing the seat to maintain its reclining functionality.
Solution Approach 2:
A flexible cushioning membrane or layer is used to bridge the discontinuities in the seat structure. This flexible layer conforms to the seat's movable components while providing continuous support, preventing bodily tissue from being squeezed into gaps during reclining motion.
2Ease of repair
If terminal seats are made from hard rigid plastic for durability, then ease of cleaning and maintenance is improved, but comfort for waiting passengers deteriorates
Solution Approach 1:
The seating system is divided into two functional segments: the hard rigid plastic seat structure that provides durability and ease of cleaning, and a separate removable cushioning layer that provides comfort. The cushioning layer can be detached for cleaning while the permanent seat structure remains intact.
Solution Approach 2:
A removable cushioning layer is added that can be easily replaced or cleaned independently from the permanent seat structure. This allows the comfort element to be maintained or replaced without affecting the durable base seat.
3Adaptability or versatility
If seat gaps are made larger to accommodate relative movement, then reclining functionality is improved, but friction and discomfort during movement increase
Solution Approach 1:
A continuous cushioning layer acts as a mediator between the passenger and the seat's movable components. This layer reduces friction during movement by providing a smooth, compliant surface that moves with the passenger, eliminating the pulling sensation that occurs when tissue is extracted from large gaps.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The viscoelastic cushion effectively distributes weight, reduces pressure on discomfort points, and isolates passengers from seat vibrations, enhancing comfort during long trips by creating a smooth surface and reducing friction and pain.
Implementation Method 1
The cushioning layer may be formed from a viscoelastic material such as memory foam
Implementation Method 2
providing support across pinch points and absorbing vibrations
Data Source
AI summary
A seating pad assembly is provided for use by travelers to increase the comfort for a seat on a public transportation vehicle or at a public transit terminal. The seating pad assembly includes a cushion formed from a viscoelastic foam and having dimensions substantially conforming to the dimensions of at least the hip/thigh support and the back support of the seat. Thus, the viscoelastic foam will bridge hard points and pinch points of the seat and will efficiently support the traveler across the gap. The seating pad assembly further includes a removable cover, straps for holding the pad in a coiled condition and a carrying bag for transporting the pad assembly.