with reference to fig1 the enlongated supporting platform 10 is further supported by the standard skateboard hardware comprising the mounting plate 13 on the forward end of the board shown at the left side of the drawing and mounting plate 14 on the rearward end of the board at thr right side of the drawing . axles 15 and 16 and wheel assembly 17 and 18 are also standard skateboard hardware . vertical side walls , 22 , extend downward perpendicularly from the supporting platform and are attached to a foot plate , 11 , on either side . the aft section of the foot plate closes the rider &# 39 ; s foot from the heel forward to the ball of the foot and the toe of the rider &# 39 ; s shoe rests on the forward section of the foot plate , 11a . the foot is further enclosed by a side flange , 12 , perpendicular to the foot plate , 11 , and a side flange , 12a , perpendicular to the foot plate section , 11a . thus a foot well is formed on either side of the supporting platform substantially lower than the plane of the platform in contrast to a typical skateboard configuration in which the entire supporting foot surface would be at the higher platform plane . fig2 further illustrates the vertical relationship between the foot plate and the supporting platform . foot plate section 11 is inclined downwardly from the aft section toward the forward section and foot plate section 11a is inclined upwardly from the point of the ball of the user &# 39 ; s foot at the intersection between the two plate sections . the effect of the change in incline of the foot plate is to thrust the rider &# 39 ; s weight forward on his toes in the same posture required in snow skiing . additionally , fig2 illustrates that standard skateboard hardware supports the upper platform on the wheels ; forward skateboard truck 20 and its turning pivot 20a are illustrated as well as aft truck 21 and its pivot 21a mounted in opposite direction from the forward truck in order that the assemblies will induce a turn in the same direction at the same time ; i . e ., in a left turn , truck 20 will turn axle 15 counter clockwise as viewed from fig1 and truck 21 will turn axle 16 clockwise as viewed in fig1 . fig3 shows in cross section that the device may be constructed in solid form by casting or molding providing adequate vertical support for the foot plates to be rigidly attached to the same horizontal position as the supporting platform , and the solid portion is cut away for mounting of the skateboard hardware fore and aft . fig4 further illustrates that the device may be constructed solidly by casting or molding , clearly showing that the unit presents a solid cross section at its midpoint . additionally , fig4 illustrates that the board will contact the ground on its lower side if it is pivoted too far into the turn , limiting the rider &# 39 ; s body position which would otherwise tend to lean more markedly into the hill . finally , fig5 shows the approximate posture of the board in cross section while traversing an inclined ground surface . the board is tilted slightly uphill relative to the axle , which turns the trucks slightly inducing a turn as described above . a significant amount of the rider &# 39 ; s weight , however , must be maintained in the downhill foot well , a posture similar to the weighting requirement on the downhill ski in snow skiing . skateboarding by contrast , typically favors sharp turns and placement of a high proportion of the rider &# 39 ; s weight on the inside or uphill edge of the board . thus , in operation , the motion and posture required of the rider of the within described invention , closely simulates that required of a snow skier : feet parallel and close together , weight forward and centered over the platform evernly with significant weight on the downhill side producing a balanced dynamic condition resulting in the classic carved turn across a slope .
a skateboard - type platform is described using standard skateboard hardware including wheels , axles , trucks , and mounting devices and including a lowered platform for placement of the user &# 39 ; s feet in a parallel position thus simulating the foot placement , posture , and turning motions involved in snow skiing .