Roller skate steering and suspension mechanism

A triple action roller skate steering and suspension system comprising:

• a base plate having at least one pivot cup mounting hole and at least one kingpin mounting hole;
• a kingpin having a kingpin axis, said kingpin being attached into said kingpin mounting hole;
• a skate truck having at least one wheel axle holder, a pivot pin socket, and a kingpin aperture with said kingpin disposed therethrough;
• a first resilient cushion radially surrounding a portion of said kingpin and in mechanical communication with said skate truck;
• a first cushion support radially surrounding a portion of said kingpin and disposed in fixed relation to said base plate between said base plate and said first resilient cushion and in mechanical communication with said first resilient cushion;
• said first resilient cushion thereby providing a first steering and suspension action;
• a second resilient cushion radially surrounding a portion of said kingpin and in mechanical communication with said skate truck;
• said second resilient cushion being disposed opposite said first resilient cushion in relation to said skate truck;
• a second cushion support radially surrounding a portion of said kingpin and disposed in fixed relation to said base plate, wherein said second cushion support is in mechanical communication with said second resilient cushion and disposed opposite said second resilient cushion in relation to said skate truck;
• said skate truck thereby being resiliently supported between said first and second resilient cushions and said second resilient cushion thereby providing a second steering and suspension action;
• said pivot cup mounting hole having interior sides and a bottom;
• a pivot cup having a cup body, a cup socket and a cup end disposed opposite said cup socket;
• said pivot cup positioned to float without direct contact in said pivot cup mounting hole such that said cup socket faces outwards;
• a radially disposed resilient means for shock absorbing in mechanical communication between a portion of said cup body and a portion of said interior sides, said radially disposed resilient means for shock absorbing providing the functions of retaining said pivot cup within said pivot cup mounting hole, absorbing lateral loads experienced by said pivot cup, and providing lateral movement for said pivot cup in response to lateral loads;
• an axially disposed resilient means for shock absorbing in mechanical communication between a portion of said cup end and a portion of said bottom;
• a pivot pin having a pivot pin axis, a proximal end comprising a threaded section and a distal end comprising a rounded pivot;
• said threaded section being threaded into said pivot pin socket, said rounded pivot in rotary mechanical communication with said cup socket;
• and,
• whereby the combination of said pivot pin, said pivot cup, said radially disposed resilient means for shock absorbing and said axially disposed resilient means for shock absorbing provides a third steering and suspension action.

A steering and suspension action for a skate mechanism comprising:

• a base plate having at least one pivot cup mounting hole;
• said pivot cup mounting hole having interior sides and a bottom;
• a pivot cup having a cup body, a cup socket and a cup end disposed opposite said cup socket;
• said pivot cup positioned to float without direct contact in said pivot cup mounting hole such that said cup socket faces outwards;
• a radially disposed resilient means for shock absorbing in mechanical communication between a portion of said cup body and a portion of said interior sides, said radially disposed resilient means for shock absorbing providing the functions of retaining said pivot cup within said pivot cup mounting hole, absorbing lateral loads experienced by said pivot cup, and providing lateral movement for said pivot cup in response to lateral loads;
• an axially disposed resilient means for shock absorbing in mechanical communication between a portion of said cup end and a portion of said bottom;
• a skate truck having a pivot pin socket;
• a pivot pin having a pivot pin axis, a proximal end comprising a threaded section and a distal end comprising a rounded pivot;
• said threaded section being threaded into said pivot pin socket, and,
• said rounded pivot in rotary mechanical communication with said cup socket, whereby said pivot pin can be threadedly mechanically preloaded against said pivot cup, and transmission of mechanical forces from said base plate or from said truck cause said pivot cup to travel up and down in said pivot cup mounting hole and to be resiliently supported against mechanical impacts by said axially disposed resilient means and said radially disposed resilient means.

A skate truck comprising:

• a body having a center plane;
• said body having an axle holder, a pivot pin socket, and a kingpin aperture;
• said axle holder, said pivot pin socket, and said kingpin aperture being symmetrical about said center plane;
• said kingpin aperture being disposed between said pivot pin socket and said axle holder;
• an inner cushion recess in said body, radially disposed around said kingpin aperture;
• an outer cushion recess in said body, radially disposed around said kingpin aperture;
• said inner cushion recess and said outer cushion recess being offset from and generally oppositely disposed with respect to the center plane, although they may differ with respect to geometric attributes from the group consisting of depth, angle, exact diameter and contour;
• said axle holder having a center axis approximately coplanar with said center plane;
• and,
• said axle holder center axis being bisected by and perpendicular to said pivot pin axis.