Contoured plastic seat back
First Claim
1. A chair back comprising:
- a one-piece, rigid inner chair back shell;
a front surface on said inner shell, said front surface being a curved, generally planar surface adapted to be at least partially covered with a padding, said front surface having a generally curved shape for both at least one horizontal cross section and at least one vertical cross section; and
a back surface on said inner shell, said back surface oriented away from said front surface, said back surface having a generally curved shape for at least one vertical cross section and having a straight shape for substantially all horizontal cross sections, said front and back surfaces defining a plurality of apertures adapted to allow ornamentation to be secured to the padding; and
an outer shell adapted to be secured to said inner shell, said outer shell generally conforming to the back surface of said inner shell.
1 Assignment
0 Petitions
Accused Products
Abstract
A plastic contoured seat back includes an inner and an outer shell affixed together. The inner shell includes a three dimensionally curved front surface and a two-dimensionally curved back surface. The inner shell may include an internal rib adjacent the top of the shell that is shaped differently from the top edge of the inner shell. The internal rib is adapted to allow the inner shell to be cut adjacent the internal rib so that the inner shell can be varied in shape. The shell may also include indentations on the back side of the shell adjacent the corners of the inner shell. The indentations are dimensioned to receive overlapping fabric that is pulled around the corners such that the fabric on the back of the shell adjacent the corners does not project outwardly more than the fabric elsewhere, despite the overlapping of the fabric at the corners. The inner shell may also include a plurality of uniquely identified holes adapted to allow a variety of different ornamentation to be attached to the inner shell.
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Citations
21 Claims
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1. A chair back comprising:
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a one-piece, rigid inner chair back shell; a front surface on said inner shell, said front surface being a curved, generally planar surface adapted to be at least partially covered with a padding, said front surface having a generally curved shape for both at least one horizontal cross section and at least one vertical cross section; and a back surface on said inner shell, said back surface oriented away from said front surface, said back surface having a generally curved shape for at least one vertical cross section and having a straight shape for substantially all horizontal cross sections, said front and back surfaces defining a plurality of apertures adapted to allow ornamentation to be secured to the padding; and an outer shell adapted to be secured to said inner shell, said outer shell generally conforming to the back surface of said inner shell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A chair back comprising:
a one-piece inner shell having a two-dimensionally curved back surface and a three-dimensionally curved front surface, said three-dimensionally curved front surface being a curved, generally planar surface adapted to allow unmolded slab foam to be affixed to it;
said inner shell including a plurality of apertures adapted to allow ornamentation to be secured to said slab foam; and
an outer shell adapted to be secured to said inner shell, said outer shell generally conforming to the back surface of said inner shell.- View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A chair back comprising:
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an inner shell having a two-dimensionally curved back surface and a three-dimensionally curved front surface, said three-dimensionally curved front surface adapted to allow unmolded slab foam to be affixed to it; said inner shell including a plurality of holes adapted to receive fasteners to secure said shell to a pair of wings; and an outer shell adapted to be secured to said inner shell at a plurality of different positions, said outer shell being at least partially secured to said inner shell by fasteners engaging said pair of wings.
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17. A chair back, comprising:
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an inner shell having a two dimensionally curved back; an outer shell having a front conforming to said two dimensionally curved back of said inner shell, said outer shell defining a plurality of sets of apertures, each said set of apertures defined at a height on said outer shell different from the rest of said sets of apertures; a pair of wings attached to said inner shell back; and a plurality of fasteners inserted into one of said sets of apertures, said fasteners extending into said wings and at least partially securing said inner and outer shell together. - View Dependent Claims (18, 19, 20)
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21. A chair comprising:
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a seat; at least two legs for supporting said seat; an inner shell disposed above said seat for supporting a user'"'"'s back, said inner shell having a front side which is three-dimensionally curved and a back side which is two-dimensionally curved; an outer shell attached to side back side of said inner shell, said outer shell being two-dimensionally curved; and at least one wing attached to each of said at least two legs and said inner shell, said inner shell supported by said wings and said legs, said legs and said wings attached to said inner shell along the right and left sides of said inner shell.
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Specification