Skateboard truck assembly
AssigneeUnicomm Corporation
InventorsToshihiro Yamada, Takayuki Hiranuma
Life of this patent
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Abstract
The present invention relates generally to an improved skateboard truck for skateboards. The preferred skateboard truck comprises a yoke mounted by a king bolt to a mounting base. The mounting base comprises a socket hub and a bracket. The yoke comprises a hanger and a pivot arm. The pivot arm rotates freely in a bearing unit supporting the pivot arm in the socket hub. The king bolt clamps the hanger with a first grommet and a second grommet. The first grommet is flexible, preferably made of urethane rubber, and comprises an edge circumference and a center circumference. The center circumference is narrower than the edge circumference. Preferably, the first and second grommets are fluorescent.
Claims22
An improved skateboard truck comprising:
- a mounting base comprising a pivot hole, and
- a yoke comprising at least one wheel axle, a pivot arm, and a hanger, said hanger clamped by an upper and lower elastic grommet and a king bolt;
- said upper elastic grommet comprising an interior segment disposed between two exterior segments wherein the interior segment has a circumference narrower than the circumference of each exterior segment;
- said yoke mounted to the mounting base resiliently and fixedly at the hanger by the king bolt, and the pivot arm inserted into a bearing unit and contacting a rubber urethane bush in the pivot hole.
An improved skateboard truck comprising a yoke mounted by a king bolt to a mounting base comprising a socket hub and a bracket;
- the yoke comprising a hanger and a pivot arm;
- the pivot arm supported in the socket hub by a bearing unit;
- the king bolt clamping the hanger with a first grommet and second grommet;
- the first grommet comprising an interior circumference disposed between two edge circumferences, wherein the interior circumference is narrower than both edge circumferences.
A skateboard comprising a board, at least two wheels and at least one improved skateboard truck;
- the skateboard truck comprising a yoke mounted by a king bolt to a mounting base comprising a socket hub and a bracket;
- the yoke comprising a hanger and a pivot arm;
- the pivot arm rotates freely in a bearing unit supporting the pivot arm in the socket hub;
- the king bolt clamping the hanger with a first grommet and a second grommet;
- the first grommet is flexible and comprises a center circumference disposed between two edge circumferences wherein the center circumference is smaller than both edge circumferences.
An improved skateboard truck comprising a yoke mounted by a king bolt to a mounting base comprising a socket hub and a bracket;
- the yoke comprising a hanger and a pivot arm;
- the pivot arm inserted in the socket hub;
- the king bolt clamping the hanger with a first grommet and a second grommet;
- the first grommet comprising an interior circumference disposed between two edge circumferences wherein the interior circumference is narrower than the two edge circumferences.
An improved skateboard truck comprising:
- a yoke mounted by a bolt to a mounting base comprising a socket and a bracket;
- the yoke comprising a hanger and a pivot arm;
- the pivot arm inserted in the socket;
- the bolt supporting the hanger and a grommet;
- the grommet comprising an interior circumference disposed between two edge circumferences wherein the interior circumference is narrower than the two edge circumferences.
An improved skateboard truck comprising:
- a hanger interposed between a first grommet and a second grommet;
- said first grommet having an interior circumference disposed between two edge circumferences wherein the interior circumference is smaller than the two edge circumferences.
Dependencies are inferred from the claim text.