초록 ▼

An internal frame backpack having a large flat closable pocket along one entire side which pocket is adapted to receive a rigid contoured rectangular piece in order to provide support for said pack. The piece may be corrugated for additional strength, and is specially molded to conform to the lumbar

An internal frame backpack having a large flat closable pocket along one entire side which pocket is adapted to receive a rigid contoured rectangular piece in order to provide support for said pack. The piece may be corrugated for additional strength, and is specially molded to conform to the lumbar region, shoulders, back and head of a human wearer so as to minimize interference with the free movement of the wearer's back, shoulders and head. An alternative embodiment provides contours adapted to receive the shoulder straps of the backpack to avoid their rubbing against the back of the user.

대표청구항 ▼

1. In combination, an internal frame backpack having a large flat pocket along one side adapted to receive a stiffened rectangular piece in order to provide support for said pack, said pocket having a closing means for holding said piece therein wherein said rectangular piece has a top edge, a botto

1. In combination, an internal frame backpack having a large flat pocket along one side adapted to receive a stiffened rectangular piece in order to provide support for said pack, said pocket having a closing means for holding said piece therein wherein said rectangular piece has a top edge, a bottom edge opposite said top edge, and two intermediate longitudinal side edges and is longitudinally corrugated for strength, and wherein said piece is molded to conform to the features of a human back, and wherein said piece is provided with an inwardly bowed area near the bottom edge of said piece which corresponds to the lumbar region of a human back, and said piece is provided with a pair of recessed areas along the longitudinal edges of said piece, which recesses correspond to the location of the shoulders of a human back. 2. The backpack described in claim 1 wherein said piece is provided with a recess in the top edge of said piece which corresponds to the location of the back of a human neck. 3. The backpack described in claim 2 wherein said piece is provided with a bowed recessed area which corresponds to the location of the middle of the human back. 4. A single stiffened corrugated rectangular Plastic piece for use in an internal frame backpack having a top edge, a bottom edge opposite said top edge, and two intermediate longitudinal side edges that is molded to generally conform to the contours of a human back, wherein said piece is bowed in an outward direction at the bottom edge, and wherein said piece is provided with a concave bow intermediate the side edges in the middle thereof. 5. The piece described in claim 4 wherein a recessed area is provided at the top edge of said piece. 6. The piece described in claim 5 wherein a pair of recesses are provided on each side of said piece above said concave bow and below said recessed area. 7. In combination an internal frame pack wherein a single large stiffened rectangular plastic piece forms one side thereof in order to provide support for said pack wherein said piece has a top edge, a bottom edge opposite said top edge, and two intermediate longitudinal side edges, is longitudinally corrugated, and is molded to generally conform to the contours of a human back, wherein said piece is bowed in an outward direction at the bottom edge, and wherein said piece is provided with a concave bow intermediate said side edges. 8. The pack described in claim 7 wherein a recessed area is provided along the top edge of said piece. 9. The pack described in claim 8 wherein a pair of recesses are provided along each side of said piece above said concave bow and below said recessed area.