Skateboard truck with inverted king pin and integrated kingpin fastener
A skateboard truck includes a metal bolt called a kingpin and a threaded fastener, called a hex nut, which when combined hold the two main components of a truck together: the baseplate, which is mounted to the bottom surface of the skateboard deck; and the turning part of the truck called the hanger, which is mounted onto the baseplate by means of the kingpin, and affixed tightly into the baseplate by means of a threaded hex nut. Two bushings placed along the shaft of the kingpin and on either side of a flange protruding from the hanger hold the hanger in place by the tightening of the kingpin into the threaded shaft nut fastener. The kingpin is oriented such that a threaded portion of the kingpin (on an end opposite a bolt head portion) is generally facing towards a bottom surface of the skateboard deck.
1. A skateboard truck, comprising:
a baseplate configured for mounting to a bottom surface of a skateboard deck;
a hanger configured to hold an axle;
a monocoque hex nut mounted inside the baseplate; and
a kingpin bolt having a threaded portion affixed to the monocoque hex nut to secure the baseplate and hanger together relative to the bottom surface of the skateboard deck;
wherein the baseplate comprises first and second opposing primary surfaces, the first primary surface configured to be positioned coincident with the bottom surface of the skateboard deck;
wherein the first primary surface of the baseplate comprises a recessed cavity to fit the monocoque hex nut;
wherein the baseplate comprises a through hole that is bored through the recess cavity and out to the second primary surface; and
wherein the baseplate through hole has the same inside dimension as an outer major surface of the monocoque hex nut.
2. The skateboard truck of claim 1 , wherein the kingpin bolt is configured to be tightened into the baseplate.
3. The skateboard truck of claim 1 , wherein a first end of the kingpin bolt comprises the threaded portion, and wherein a second end of the kingpin bolt comprises a bolt head configured in one of a hex shape or a round shape.
4. The skateboard truck of claim 3 , wherein the kingpin bolt is oriented such that the first end of the kingpin bolt generally faces the bottom surface of the skateboard deck.
5. The skateboard truck of claim 1 , wherein:
the monocoque hex nut comprises a hex portion and a shaft portion adjacent, to the hex portion.
6. The skateboard truck of claim 5 , wherein the hex portion and the shaft portion are formed to define a center hole throughout.
7. The skateboard truck of claim 6 , wherein:
an inside surface of the center hole formed throughout the hex portion and the shaft portion comprises cut threads; and
an outer surface of the monocoque hex nut has a smooth circular diameter with no threads.
8. The skateboard truck of claim 1 , wherein the baseplate comprises aluminum.
9. The skateboard truck of claim 1 , wherein the baseplate is formed in the shape of one of a rectangle, oval, or square.
10. The skateboard truck of claim 1 , wherein the hanger comprises an aluminum hanger configured to hold a steel axle.
11. The skateboard truck of claim 10 , wherein the hanger comprises a mounting flange with a through hole at the center of the flange.
12. The skateboard truck of claim 10 , wherein a major axis of the axle is coincident to a major axis of the hanger.
13. The skateboard truck of claim 10 , wherein the axle comprises two axle ends with threads cut into each axle end.
14. The skateboard truck of claim 13 , wherein each axle end is configured to extend beyond an outer surface of the hanger.
15. The skateboard truck of claim 13 , wherein bearings and wheels are affixed to each axle end.
16. The skateboard truck of claim 10 , wherein an axis of the axle is coaxial with an axis of the hanger.