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US 2022/0089206 A1Published application
Expandable hand truck
OwnerJose Cejainventor
Life of this patent
Estimating the term…
Abstract
A hand truck having a plurality of hingeably engaged sides that is expandable from a closed position dimensioned to fit through a standard doorway, to an open position to form a movable platform having a swing out support frame having an upper end hingedly attached to the rear side of the center frame which is movable between an extended position and a stored position. A corresponding sofa dolly and a platform enclosure is also disclosed.
Claims20
A hand truck comprising:
- a plurality of frames, each defining a top end separated from a bottom end by a height;
- a first side comprising a first side member separated from a second side comprising a second side member by a width, and further comprising at least one cross member extending between the first side member and the second side member;
- a deck attached to a front side of one or more of the first side, the second side or the at least one cross member, dimensioned and arranged to cover at least a portion of the width and the height defined by the frame;
- wherein one of the plurality of frames forms a center frame and comprises a wheel assembly attached to a rear side of the center frame, proximate to the bottom end and comprising at least one wheel adapted to facilitate a rolling movement of the hand truck over an external surface;
- each of the remaining plurality of frames forming side frames, wherein the first side of the center frame is hingedly attached to a second side of a first side frame;
- moveable between an open position and a closed position such that in the open position, the deck of the center frame is essentially coplanar with a deck of the first side frame, and in the closed position the deck of the center frame is non-coplanar with the deck of the first side frame;
- wherein the second side of the center frame is hingedly attached to a first side of a third side frame;
- moveable between an open position and a closed position such that in the open position, the deck of the center frame is essentially coplanar with a deck of the third side frame, and in the closed position the deck of the center frame is non-coplanar with the deck of the third side frame;
- a swing out support frame having an upper end hingedly attached to the rear side of the center frame which is movable between an extended position and a stored position;
- the support frame dimensioned and arranged such that when in the stored position, a lower end of the support frame is near and/or in contact with a cross member of the center frame and does not extend below the bottom of the center frame, and when in the extended position, the lower end of the support frame extends a distance away from the side members such that the support frame forms an angle of greater than about 10° and less than 90°, determined relative to the side members of the center frame.
7 more elements
A hand truck comprising:
- a plurality of frames, each defining a top end separated from a bottom end by a height;
- each frame comprising a first side comprising a first side member separated from a second side comprising a second side member by a width, and further comprising at least one cross member extending between the first side member and the second side member, and a deck attached to a front side of one or more of the first side, the second side or the at least one cross member, dimensioned and arranged to cover at least a portion of the width and the height defined by the frame;
- wherein one of the plurality of frames forms a center frame and comprises a wheel assembly attached to a rear side of the center frame, proximate to the bottom end and comprising at least one wheel adapted to facilitate a rolling movement of the hand truck over an external surface;
- the remaining plurality of frames each forming one of a plurality of side frames;
- wherein the first side of the center frame is hingedly attached to a second side of a first side frame and a first side of the first side frame is hingedly attached to a second side of a second side frame;
- wherein the second side of the center frame is hingedly attached to a first side of a third side frame and a second side of the third side frame is hingedly attached to a first side of a fourth side frame;
- wherein each of the side frames are moveable between an open position and a closed position such that in the open position, the deck of the center frame is essentially coplanar with the deck of each side frame, and in the closed position, the deck of the center frame is non-coplanar with the deck of each side frame;
- wherein each of the frames have a total height of greater than or equal to about 48 inches;
- and
- wherein the hand truck has a total width of less than or equal to about 30 inches when all of the side frames are in their respective closed positions, and wherein the hand truck has a total width of greater than or equal to about 70 inches when all of the side frames are in their respective open positions;
- a swing out support frame having an upper end hingedly attached to the rear side of the center frame which is movable between an extended position and a stored position;
- the support frame dimensioned and arranged such that when in the stored position, a lower end of the support frame is near and/or in contact with a cross member of the center frame and does not extend below the bottom of the center frame, and when in the extended position, the lower end of the support frame extends a distance away from the side members such that the support frame forms an angle of greater than about 10° and less than 90°, determined relative to the side members of the center frame.
9 more elements
A hand truck comprising:
- a plurality of frames, each defining a top end separated from a bottom end by a height;
- a first side comprising a first side member separated from a second side comprising a second side member by a width, and further comprising at least one cross member extending between the first side member and the second side member;
- a deck attached to a front side of one or more of the first side, the second side or the at least one cross member, dimensioned and arranged to cover at least a portion of the width and the height defined by the frame;
- wherein one of the plurality of frames forms a center frame and comprises a wheel assembly attached to a rear side of the center frame, proximate to the bottom end and comprising at least one wheel adapted to facilitate a rolling movement of the hand truck over an external surface;
- each of the remaining plurality of frames forming side frames, wherein the first side of the center frame is hingedly attached to a second side of a first side frame;
- moveable between an open position and a closed position such that in the open position, the deck of the center frame is essentially coplanar with a deck of the first side frame, and in the closed position the deck of the center frame is non-coplanar with the deck of the first side frame;
- and
- wherein a first side of the first side frame is hingedly attached to a second side of a second side frame movable between an open position and a closed position such that in the open position, the deck of the first side frame is essentially coplanar with a deck of the second side frame, and in the closed position, the deck of the first side frame is non-coplanar with the deck of the center frame;
- a swing out support frame having an upper end hingedly attached to the rear side of the center frame which is movable between an extended position and a stored position;
- the support frame dimensioned and arranged such that when in the stored position, a lower end of the support frame is near and/or in contact with a cross member of the center frame and does not extend below the bottom of the center frame, and when in the extended position, the lower end of the support frame extends a distance away from the side members such that the support frame forms an angle of greater than about 10° and less than 90°, determined relative to the side members of the center frame.
7 more elements
Dependencies are inferred from the claim text.