Improved seating cushion

A cushion and airbag technology, applied in the field of pneumatically adjustable airbag systems

Pending Publication Date: 2020-01-07
COMFORT CONCEPTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Padded seat bottoms incorporating pneumatically adjustable airbag systems are known, but rarely allow the user to sit into the sea...

Method used

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  • Improved seating cushion
  • Improved seating cushion
  • Improved seating cushion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] figure 1 The pneumatically adjustable airbag system 10 shown in is configured for use with a padded seat bottom and includes an airtight arrangement of a self-inflating bag 12 (located at the rear end and lower region of the seat bottom), a pair of inflation chambers 14, 16 (located at the front and middle regions of the seat bottom), and respective air passages 18 , 20 interconnecting the airbag 12 with each inflation chamber 14 , 16 .

[0050]In this embodiment, the self-inflating bag 12 has an airtight shell made of a flexible and weldable material, such as a deformable polyvinyl chloride (PVC) film or more preferably a thermoplastic polyurethane (TPU) film, which is filled with a Compressed materials and expandable foam or foam-like materials.

[0051] In this embodiment, the compressible and expandable material is reticulated polyurethane foam, although any suitable form of open cell polyurethane foam may be used.

[0052] The foam-filled bladder 12 is capable of...

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PUM

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Abstract

A pneumatically adjustable bladder system (90) for use in a cushioned seat bottom (24) has one or two rear foam filled bladders (62, 64) for location under the ischial tuberosities of a seated occupant of the seat bottom, and one or more expansion chambers (14, 16) or front foam filled bladders (66, 68) for location under the thighs of the seated occupant. There are air passageways (70, 72, 74, 92) interconnecting the bladders with each other or with an expansion chamber. The system is air tight and the bladders are compressible under the weight of the seated occupant and are expandable when the weight is removed. The compression of a bladder causes air therewith in to be displaced through the air passageways to the expansion chambers or to the other bladders, which then expand. The compression of a bladder under the ischial tuberosities of the seated occupant and the expansion of the expansion chambers or of the other bladders under the thighs of the seated occupant cause the seated occupant to experience a correct level of immersion into the cushioned seat bottom which is desired for effective postural support and prevention of lower back pain.

Description

technical field [0001] The present invention relates to pneumatically adjustable cushioning, and more particularly to a pneumatically adjustable airbag system for a padded seat bottom that can be filled as desired by filling the airbag with one or more expansion chambers or multiple foam fills Automatic inflation and deflation with internally controlled air displacement between the bladders. This internally controlled air shift occurs when the seat bottom seated occupant re-seats himself on the seat bottom, and the change in its weight automatically adjusts how effectively the seated occupant's postural support is. Background technique [0002] Padded seat bottoms incorporating pneumatically adjustable airbag systems are known, but rarely allow the user to sit into the seat bottom to the correct degree, which is essential for effectively rotating and stabilizing the pelvis and preventing lower back pain is needed. This is especially true for airbag systems that occupy a la...

Claims

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Application Information

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IPC IPC(8): A47C7/02A47C27/18A47C27/08
CPCA47C7/021A47C27/088A47C27/10A47C7/142A47C7/144A47C7/18A47C27/084A47C27/18
Inventor D·沃奈
Owner COMFORT CONCEPTS
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