Inflatable seat having a backrest with a plurality of horizontally interspersed PVC sandwich mesh fabric strips

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Solution Overview

Problem

Conventional inflatable seats lack a backrest that conforms to the curvature of the human body's lumbar region, leading to lumbar spine pain and discomfort during prolonged sitting.

Innovation Solution

An inflatable seat design featuring a main body made of inflation brushed cloth with PVC sandwich mesh fabric regions on the backrest, allowing the seat to naturally bend and form a curved backrest when inflated, and a manufacturing method that includes sewing PVC sandwich mesh fabric around the perimeter to connect the sides and create stitching lines for bending functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional inflatable seats use a simple flat structure, then they are easy to manufacture and store, but they do not conform to the lumbar curvature causing discomfort and spine pain

Engineering Contradiction:
Improvecomfort and lumbar supportVSAvoidbackrest structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies curvature by incorporating PVC sandwich mesh fabric regions that create a natural bending arc in the backrest area, conforming to the lumbar curvature. This resolves the contradiction by adding the necessary curvature for comfort while maintaining the overall simplicity of the inflatable seat structure.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent applies local quality by using PVC sandwich mesh fabric specifically in the backrest region where lumbar support is needed, while the rest of the seat remains a simple inflatable structure. This localized application provides the necessary structural complexity only where required for comfort.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If conventional seats use wood or metal frames with sponge filling, then they provide comfort, but they have complex structure, large volume and weight, and are not easy to fold or store

Engineering Contradiction:
ImprovecomfortVSAvoidseat weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The patent uses pneumatic principles by inflating the brushed cloth body to create a lightweight, foldable seat structure that replaces heavy wood or metal frames. The inflation provides the necessary structural support and comfort without the weight and complexity of conventional frames.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent uses flexible shells by employing an inflatable brushed cloth body that can be folded and stored when deflated, yet provides comfort when inflated. This resolves the contradiction between comfort and portability by using a flexible inflatable structure instead of rigid heavy materials.

Inventive Principle:
Principle #30Flexible shells and thin films

3Ease of operation

If conventional inflatable seats use uniform material throughout, then they are simple to manufacture, but they cannot form a naturally bending backrest for lumbar support

Engineering Contradiction:
Improvelumbar supportVSAvoidmanufacturing process
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent applies local quality by using PVC sandwich mesh fabric specifically in the backrest region where lumbar support is needed, while the rest of the seat remains a simple inflatable structure. This localized application provides the necessary structural complexity only where required for comfort.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11969105B1Inflatable seat having a backrest with a plurality of horizontally interspersed PVC sandwich mesh fabric strips
Publication Date: 2024.04.30 LIAN XIANGPENG
  • US11969105B1 patent drawing
  • US11969105B1 patent drawing
  • US11969105B1 patent drawing

AI summary

An inflatable seat, including a main body made of an inflation brushed cloth and a side wall surrounding the main body; where the main body includes a first side and a second side opposite to each other, the side wall connecting the first side and the second side; the first side includes a first surface, and the second side includes a second surface; the main body bends to form a cushion and a backrest; the first surface includes multiple first surface regions, and the first side further includes multiple PVC sandwich mesh fabric regions arranged on the backrest, the PVC sandwich mesh fabric regions being each in the shape of an elongated strip and horizontally interspersed with the multiple first surface regions.