Seat incorporating a cushion
AssigneeRolapal Limited
InventorRoydon Scarlett
Life of this patent
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Abstract
It is common for people who have postural problems to use wheelchairs. It is a problem that extended periods spent in the wheelchair can cause pressure on a particular body part. The invention discloses a seat comprising a cushion. The cushion comprises a flexible bag containing a plurality of pads and a liquid. The cushion is such that the liquid facilitates movement of the pads with respect to one another to mould the cushion in the event that a human user places body weight on the cushion.
Claims20
A wheelchair seat comprising a cushion, the cushion comprising a flexible bag containing a plurality of pads and a liquid, wherein:
- the bag is air free;
- the pads are gel pieces comprised of polymer and occupy less than 60% of the volume capacity of the bag;
- and
- the liquid occupies at least 5% of the volume capacity of the bag;
- the cushion being such that the liquid facilitates movement of the pads with respect to one another to mould the cushion in the event that a human user places body weight on the cushion.
A wheelchair seat comprising a cushion having:
- a cover comprising a pocket,
- a flexible bag inside the pocket, the bag being substantially air free and containing a plurality of gel pieces and liquid;
- the cushion being such that:
- the gel pieces occupy less than 80% of the volume capacity of the bag;
- the liquid occupies at least 5% of the volume capacity of the bag;
- and
- the liquid provides lubrication between the gel pieces to facilitate movement of them with respect to one another to mould the cushion in the event that a human user places body weight on the cushion.
Dependencies are inferred from the claim text.