Seat Portion for a Seat

Abstract

A seat portion ( 2 ) for a seat ( 4 ), which seat ( 4 ) is made of a single foam material having one or more apertures ( 6 ) defining a seating area ( 8 ), the seating area ( 8 ) being such that it comprises a first portion ( 10 ) for receiving a person's buttocks, a second portion ( 12 ) for receiving a rear thigh part of a first leg of the person, and a third portion ( 14 ) for receiving a rear thigh part of a second leg of the person, the third portion ( 14 ) being spaced apart from the second portion ( 12 ), and the seating area ( 8 ) being softer than the remainder of the seat ( 4 ) portion.

1 . A seat portion for a seat, which seat is made of a single foam material having one or more apertures defining a seating area, the seating area being such that it comprises a first portion for receiving a person's buttocks, a second portion for receiving a rear thigh part of a-first leg of the person, and a third portion for receiving a rear thigh part of a second leg of the person, the third portion being spaced apart from the second portion, and the seating area being softer than the remainder of the seat portion.  
   
   
       2 . A seat portion according to  claim 1  in which the or each aperture has an open end which forms part of an outer surface of the seat portion.  
   
   
       3 . A seat portion according to  claim 2  in which the outer surface is that surface of the seat portion which is sat on, whereby the open end of the or each aperture is visible in use of the seat portion.  
   
   
       4 . A seat portion according to  claim 1  in which the or each aperture is formed inside the seat portion, whereby the seat portion has two opposed outer surfaces which do not show the or each aperture.  
   
   
       5 . A seat portion according to  claim 1  in which there is a plurality of the apertures, the apertures being cylindrical blind bores.  
   
   
       6 . A seat portion according to  claim 5  in which the bores are of circular cross-section.  
   
   
       7 . A seat portion according to claims  1 - 4  in which there is one of the apertures.  
   
   
       8 . A seat portion according to  claim 7  in which the aperture is formed inside the seat portion, whereby the seat portion has an outer surface which is sat on and which does not show the aperture, and in which the aperture is defined by an upper surface and a lower surface.  
   
   
       9 . A seat portion according to  claim 8  in which the upper surface has a plurality of abutments for abutting against the lower surface and thereby to restrict the amount by which the upper surface moves towards the lower surface.  
   
   
       10 . A seat portion according to  claim 9  in which the abutments are pillars.  
   
   
       11 . (canceled)  
   
   
       12 . A seat comprising a seat portion according to  claim 1  and a backrest portion.  
   
   
       13 . A seat according to  claim 12  in which the backrest portion is made of a single foam material having one or more apertures defining a backrest area, the backrest area being such that it comprises a first portion for receiving a spine part of the person's back, and a second portion for receiving a shoulder part of the person's back.  
   
   
       14 . A seat according to  claim 13  in which the backrest portion has the same type of aperture or apertures as the seat portion.