Gymnast trainer cushions

Claim 2

Gymnastic-training apparatus comprising: a plurality of cushion units each of generally prism form having a regular polygonal cross section; said unit including a core of plastic foam cushioning material, and a cover of tough sheet material enclosing said core; said unit having a diameter in the range of about half the height of the person using it; and fastener means for attaching said units together in a pyramid formation in which a top unit is cradled in a V-channel space between sloping sides of a pair of base units supporting said top unit.

Claim 3

A trainer apparatus as defined in claim 1; each unit having a length in the range of about twice its diameter.

Claim 4

A trainer apparatus as defined in claim 1; each unit having two ends and a number of rectangular sides in the range of 6 to 8.

Claim 5

A trainer apparatus as defined in claim 1; each unit having eight sIdes and two ends, adjacent sides subtending dihedral angles of 135*.

Claim 6

A trainer apparatus as defined in claim 1, said fastener means including: fastener elements located midway between corners of one side thereof, and cooperating fastener elements at remote corners of sides adjacent and embracing said one side; said fastener elements being arranged so that the first-mentioned fastener elements of one unit are attachable to the cooperating fastener elements of another unit. 6, A trainer apparatus as defined in claim 1, each unit having dihedral angular longitudinal corners that are compressible so as to flatten under the weight of a person supported thereon, so as to facilitate rolling of the unit under said weight.

Claim 7

Gymnastic-training apparatus comprising a plurality of cushion units each of generally prism form having a regular polygonal cross section; said unit including a core of plastic foam cushioning material, and a cover of tough sheet material enclosing said core; said unit having a diameter in the range of about half the height of the person using it; said units adapted to be stacked in a triangular pyramid formation with a plurality of base units supporting at least one upper unit; and a wedge-shaped mat having a bottom adapted to rest on a common supporting surface with said pyramid formation, a butt end adapted to abut a side face of an adjacent base unit and having a height between half the height and the full height of said adjacent base unit; and an inclined top face extending downwardly from the upper edge of said butt end to a level near said bottom at the opposite end thereof.

Claim 8

Gymnastic-training apparatus comprising a plurality of cushion units each of generally prism form having a regular polygonal cross section; said unit including a core of plastic foam cushioning material, and a cover of tough sheet material enclosing said core; said unit having a diameter in the range of about half the height of the person using it; said units adapted to be stacked in a triangular pyramid formation with a plurality of base units supporting at least one upper unit; and a wedge-shaped mat having a bottom adapted to rest on a common supporting surface with said pyramid formation, a butt end adapted to abut a side face of an adjacent base unit and having a height between half the height and the full height of said adjacent base unit; and an inclined top face extending downwardly from the upper edge of said butt end to a level near said bottom at the opposite end thereof.