PNEUMATIC CUSHION WITH VARIABLE CONFIGURATION & CONSTRICTION

摘要

A bladder formed inside or positioned on a seat accounts for variations in personal anatomy with changes in the configurations of multiple chambers in the bladder and may also allow for changes to the constriction between the chambers in the bladder. The bladder forms a cushioning device that is used for seating applications which involve movement and continuously changes softness between the chambers by using the movement of the rider. Rider movement results in the interchange of pressures through variable-sized orifices between variable-displacement chambers. The number and size of the chambers can be varied according to a desired seating configuration. The orifice size can be changed with a variable constriction mechanism. Different fastening configurations can change the number and shape of the chambers. The cushioning device can be used in retrofitting existing seats and can be produced in new seats.

主权项

1. A cushion for a seat, comprising:
a sealed bladder having an interior portion and an exterior portion; a plurality of chambers in said interior potion of said sealed bladder; a fluid communication path between said plurality of chambers; and a variable constriction in said fluid communication path between said plurality of chambers, wherein said variable constriction has a first selectable constriction and a second selectable constriction, wherein said first selectable constriction and said second selectable constriction respectively correspond with a first flow rate and a second flow rate through said fluid communication path and wherein said second flow rate is greater than said first flow rate.