CAST AXLE NUT FOR SKATEBOARD AXLE

Abstract

A skateboard truck includes a metal bolt called a pivot and a threaded fastener, called a hex nut, which together hold together the two main components of a truck: the base plate, which is mounted to the underside of the skateboard deck; and the rotating part of the truck called the dropper, which is mounted to the base plate by the pivot and secured to the base plate by a threaded axle nut assembly permanently fixed within the base plate. Two bushings located along the pivot axis and on either side of a flange protruding from the dropper hold the dropper in place when the pivot is tightened into the axle's threaded nut fastener. The pivot is oriented so that a threaded portion of the pivot (at one end opposite the bolt head portion) is usually turned toward the underside of the skateboard deck.

Description

CAST AXLE NUT FOR SKATEBOARD AXLE Field of Invention This description refers in general to skateboard axles and, more specifically, to the center pivots and axle fasteners that secure a rotating bolt to a mounting base plate. Background of the Invention Skateboards have been a popular sporting item in which a user maintains their balance on a pivoting board supported by wheels. A conventional skateboard design includes multiple components, including a skateboard deck, one or more skateboard bolts, one or more skateboard trucks, and / or wheels and / or bearings. The skateboard deck is the board on which the user stands. Skateboard trucks are the pivoting devices for the skateboard and also the carriers for the bolts onto which the wheels and bearings are mounted. Each truck includes two wheels and four bearings mounted on the bolt portion of the axle. The two pivoting trucks are mounted on the underside of the skateboard deck. Finally, it is common to have anti-slip or non-skid tape mounted on the top surface of the skateboard, which provides traction to prevent the user from slipping off the board while riding. Ref. 342607 IVIA / a / ¿U¿ó / UU 1 Summary of the Invention The aspects and advantages of the modalities in this description will be partly explained in the following description, or can be learned from the description, or can be learned through the practice of the modalities. An example of the present description is directed to a skateboard truck that includes a baseplate, a suspension bracket, an axle nut assembly permanently attached to the baseplate, and a pivot bolt. The baseplate is configured to be mounted to a bottom surface of a skateboard deck. The suspension bracket is configured to hold an axle. The axle nut assembly may be permanently fixed within the baseplate. For example, the pivot bolt may have a threaded portion attached to the axle nut assembly to secure the baseplate and suspension bracket together. In some embodiments, the baseplate may include opposing first and second primary surfaces. For example, the primary surface may be configured to match a bottom surface of the skateboard deck. The primary surface of the baseplate may include a recessed cavity.The shaft nut assembly can be permanently fixed inside the recessed cavity. These and other features, aspects, and advantages of various embodiments of the present description will be better understood with reference to the following description and the accompanying claims. The accompanying figures, which are incorporated herein and form part of this description, illustrate example embodiments of the present description and, together with the description, serve to explain the related principles. Brief Description of the Figures The detailed description of the implementations aimed at an expert in the technique is set out in the description, which refers to the attached figures, in which: Figure 1A provides a top perspective view of a skateboard according to the example modalities of the present description; Figure IB provides a bottom perspective view of a skateboard according to the example modalities of the present description; Figure 1C provides a bottom plan view of a skateboard according to the example modalities of the present description; Figure ID provides a side plan view of a skateboard according to the example modalities of the present description; Figure 2 provides an isometric view of a fully assembled skateboard axle according to example aspects of the present description; IVIA / a / ¿U¿ó / UU 1 Figure 3 provides an exploded side view of a skateboard axle according to example aspects of the present description; Figure 4 provides an exploded front view of a skateboard axle according to the example aspects of the present description; Figure 5 provides an exploded view of a skateboard axle base plate according to example aspects of the present description; Figure 6A provides a top view of a skateboard axle assembled according to example aspects of the present description; Figure 6B provides a front view of a skateboard axle assembled according to example aspects of the present description; Figure 6C provides a bottom view of a skateboard axle assembled according to example aspects of the present description; Figure 7A provides a complete side view of a skateboard axle assembled according to example aspects of the present description; Figure 7B provides a side cross-sectional view of a skateboard axle assembled according to example aspects of the present description; Figure 8A provides a complete side view IVIA / a / ¿U¿ó / UU 1 of an axle nut assembly according to example aspects of the present description; Figure 8B provides a side cross-sectional view of a shaft nut assembly according to example aspects of the present description; Figure 8C provides an isometric view of a shaft nut assembly according to example aspects of the present description; Figure 8D provides an isometric view of a shaft nut assembly according to example aspects of the present description; Figure 9A provides a complete side view of a pivot bolt according to example aspects of the present description; Figure 9B provides a top perspective view of a pivot bolt according to example aspects of the present description; Figure 9C provides a side cross-sectional view of a pivot bolt according to example aspects of the present description; Figure 9D provides a top view of a pivot bolt according to example aspects of the present description; Figure 10A provides a top view of a motherboard according to example aspects of the present description; Figure 10B provides a bottom view of a motherboard according to example aspects of the present description; Figure 10C provides a side cross-sectional view of a base plate according to example aspects of the present description; Figure 11A provides a complete side view of a base plate showing the pivot bolt with the shaft nut assembly permanently fixed inside the base plate according to the example aspects of the present description; Figure 11B provides a cross-sectional side view of a base plate with a pivot bolt and axle nut assembly permanently fixed within the base plate according to example aspects of the present description; Figure 12A provides a top perspective cross-sectional view of a base plate with a shaft nut assembly permanently fixed within the base plate according to example aspects of the present description; Figure 12B provides a side view of the shaft nut assembly according to example aspects of the present description; Figure 12C provides a top view of the shaft nut assembly according to example aspects of the present description; and Figure 12D provides a bottom perspective cross-sectional view of a base plate with a shaft nut assembly permanently fixed within the base plate according to example aspects of the present description. The reference numbers that are repeated throughout several figures are intended to identify the same characteristics in various implementations. Detailed Description of the Invention The example aspects of this description are directed toward improved skateboard trucks. A known skateboard truck configuration includes a metal alloy (e.g., aluminum) baseplate that is mounted to the underside of the skateboard using a multitude of steel machine screw fasteners and nylon insert locknuts. This known baseplate design may be rectangular, square, and / or oval, with two main surfaces, and may be made of aluminum. It may have a steel bolt pressed through a hole in the baseplate. The bolt may be oriented so that the bolt head fits into a recess in the main surface of the baseplate, corresponding to the IVIA / a / ¿U¿ó / UU 1 lower surface of the skateboard deck. The threaded portion of the bolt can be positioned protruding beyond the opposite main surface of the base plate. The conventional mounting of the suspension mount to the base plate may include the following steps. A circular steel washer with a hole in the center is placed over the exposed end of the pivot's threaded rod. Next, a circular elastomeric bushing with a hole in the center is placed over the pivot. Then, the integral flange of the suspension mount with a circular receiving hole is placed over the pivot. Next, a second circular elastomeric bushing with a hole in the center is placed over the pivot. A circular steel washer with a hole in its center is then placed over this bushing. Finally, a standard nylon-insert hexagonal lock nut is threaded onto the end of the pivot. The threads on the pivot are long enough to allow the nut to be tightened. It is this tightening action that secures the suspension mount to the base plate.The tightening action itself and the degree to which the nut is tightened can affect how easily the suspension mount can rotate relative to the base plate and the fixed pivot. It is desirable for skateboard trucks to have this tightening feature, thus controlling the amount of tension on the suspension mount and the ease or difficulty of turning, thereby increasing control. IVIA / a / ¿U¿ó / UU 1 the skateboard. A potential problem with the design of some common trucks is that the threaded pivot end is fixed, specifically at a fixed distance from the bottom surface of the skateboard and also from the ground the skateboard rolls on. Tightening the nut to increase the torque on the hanger does not change the fixed position of the pivot end. Conversely, loosening the nut to decrease the torque on the hanger also does not change the fixed position of the pivot end relative to the ground surface the skateboard rolls on. The pivot end protrudes from the baseplate and hanger, and is exposed in such a way that obstacles on the ground surface can, and often do, impact the pivot end.This impact can stop or completely alter the momentum of the skateboard, resulting in the user having a greater risk of falling off the skateboard, losing control of the skateboard, or having the skateboard's movement affected by the desired motion. It would be more desirable to have a skateboard axle design such that when the user tightens the pivot nut to beneficially affect the pivot tension of the axle's suspension mount, the pivot end retracts toward the base plate, creating more dimensional clearance between the axle and any obstacles on the ground. Skateboard axles with this capability are to be provided. As such, the example aspects of this description are directed to a skateboard axle where the orientation of the pivot and the locking and / or tightening nut are reversed or flipped (e.g., relative to conventional skateboards). The tightening nut (e.g., the axle nut assembly) may be permanently positioned within a recess in the main surface of the baseplate that matches the underside of the skateboard deck (e.g., as a manufacturing step, such as molding). The nut assembly may be permanently fixed within the baseplate during a metal casting process, with aluminum surrounding an annular surface of the outer diameter of the axle nut assembly. The axle nut assembly may be positioned within the baseplate mold cavity.Molten aluminum can be inserted between the annular surface of the outer diameter of the nut assembly and the inner surface of the mold cavity in the base plate. Pressure can be applied during this process. The assembly steps and / or the orientations of the steel washers, elastomeric cushions, hanger bracket flange, etc., can be the same as for a known shaft configuration, except that the pivot head can be positioned to protrude beyond the opposite main surface of the base plate. The special axle nut assembly may include a monocoque construction of a conventional nylon insert hex nut at one end, combined with an elongated hollow bar, and an additional hexagonal shape at the opposite end. Hereafter, the locking / tightening nut will be referred to as the axle nut assembly. This hexagonal shape may be the same as the hexagonal shape of the common nylon insert hex nut at one end, but without threads or nylon elements. A hole may run the entire length of the axle nut assembly. The axle nut may be permanently fixed during an in-situ molding process. Permanent fixation of the axle nut assembly (e.g., by an in-situ molding process, etc.) may prevent the axle nut assembly from moving in any direction (e.g., radially relative to its main axis, linearly along its main axis, etc.).The nut may be made of hardened steel, and the pivot bolt may also be made of hardened steel, but the base plate may be made of much softer aluminum. As used here, the term "permanently fixed" means fixed in a way that it cannot be removed without destroying the axle nut assembly, or, if removed, cannot be reattached to the axle nut assembly. According to the example aspects of this description, the pivot can be variably tightened on the base plate of a skateboard axle, which is provided by the novel orientation of the pivot as described herein. As the user tightens the pivot head (e.g., with a common tool such as a screwdriver, wrench, etc.), the bolt head retracts into the base plate. This tightening action increases the clearance between any obstacle on the ground and the surface of the pivot bolt head. Since the elastomeric bearings can wear down or compress, or if the user wishes to further increase the tension and rotation of the axle's suspension mount, more clearance can be created, reducing the likelihood of impacts with obstacles and thus minimizing potential falls. Simply reversing or flipping the orientation of the steel bolt pivot and a common nylon insert locknut presents obvious problems with subsequent pivot wear resulting from contact between the hardened steel pivot and the aluminum base plate, especially due to movement induced over time. Therefore, another example of the present description relates to a IVIA / a / ZUZÓ / UU 1 Improved axle nut design (e.g., axle nut assembly) to prevent contact between the pivot surface and the inner surface of the aluminum hole. The permanently fixed axle nut assembly provides a hard steel surface between the softer aluminum base plate recess and the much harder surface of the hardened steel pivot bolt. While the axle is in use and the suspension mount is rotating, force is applied by the tilting action of the suspension mount, which is transmitted to the elastomeric bushings and ultimately to the exposed pivot axle. This force moves the pivot slightly, dozens or hundreds of times per hour, and if the hardened steel pivot were to come into direct contact with the softer surface of the aluminum baseplate (for example, as in some common skateboard axles), wear (for example, from forced deformation) occurs in the circular hole of the baseplate. Over time, the wear can change the shape of the hole from a circle to an oval. Because the cross-sectional shape of the hardened steel pivot is circular, but a worn hole in the baseplate can become ovalized, the pivot cannot be securely attached to the baseplate.In use, the pivot can move significantly from side to side, affecting the rotation of the axle and the skateboard, and in turn creating the possibility of the user losing control of the skateboard and falling. Bolts with nuts (e.g., bolt-nut assemblies, hex nut bolts, etc.) designed according to the example aspects of this description can prevent contact between the harder pivot and the softer base plate. This can provide the inverted pivot orientation as described in the example aspects of this description. For example, the shaft portion of the axle nut assembly design can be assembled into the base plate by a molding process (e.g., metal casting, cast-in-place molding, etc.) during manufacturing. Therefore, the aspects described herein provide controllable and adjustable drive and have a design that retracts the pivot end toward the base plate when tightened by the user, thus increasing safety.Skateboards based on the example aspects of this description may also provide greater durability and a lower probability of impact with obstacles on the road while the skateboard is in use. Depending on one or more particular aspects of the technology described, an example skateboard axle may include both a pivot and a threaded fastener, called a bar nut, which when combined hold the two IVIA / a / ¿U¿ó / UU 1 Main components of a truck together for proper function. The two main components of a skateboard truck are the base plate, which mounts to the underside of the skateboard deck; and the rotating portion of the truck called the hanger, which mounts to the base plate by means of a metal bolt called the pivot and is secured to the base plate by means of a threaded nut on the bar that is permanently fixed inside the base plate. Two bushings made of rubber or elastomeric material, positioned along the pivot bar and on either side of a flange protruding from the hanger, hold the hanger in place by tightening the pivot into the threaded nut fastener on the bar (e.g., the bar nut assembly, etc.). According to one example of the described technology, the pivot is configured in a specific orientation when mounted to the baseplate and is held firmly by the axle nut assembly, which is permanently fixed to the baseplate. The pivot's specific orientation is the reverse of that of other skateboard axles known in the art. For example, the pivot's orientation is such that a threaded portion of the pivot (at one end opposite the bolt portion) is typically turned toward the underside of the skateboard deck rather than away from it. According to another example of the described technology, the skateboard axle is configured so that the axle's tightness can be adjusted. As the axle is tightened, the pivot bolt head moves closer to the base plate. Increased clearance between the pivot bolt head and the ground is advantageous for the skateboarder, reducing the likelihood of hitting obstacles while riding. Hitting an obstacle will cause the rider to fall off the skateboard. The axle nut embedded in the base plate has an elongated steel sleeve that protrudes toward the pivot bolt head. This unique nut and sleeve design securely holds the pivot axle and prevents movement or vibration during skateboard use. The skateboard axle technology described herein can help improve the overall structural integrity of the skateboard, the efficiency of its operation, and the safety of skateboard riders. By providing a skateboard axle configuration that allows for greater clearance between a pivot component and the ground, the possibility of impact between the skateboard and obstacles in the travel path is reduced. This impact reduction means that skateboards can operate for longer periods between impacts and / or that potential impacts occur with less severity. Both impact reduction scenarios can beneficially preserve the skateboard's structure and its overall ability to remain operational and effective. Furthermore, the described skateboard axle technology advantageously provides beneficial performance and safety measures for a skateboard operator. The impact reduction due to increased ground clearance can help decrease the likelihood of a skateboard user falling off the skateboard or sustaining potential injuries due to the skateboard striking an obstacle at the pivot point. An example of the present description is directed to a skateboard truck that includes a baseplate, a suspension bracket, an axle nut assembly permanently fixed to the baseplate, and a pivot bolt. The baseplate is configured to be mounted to a lower surface of a skateboard deck. The suspension bracket is configured to hold an axle. The axle nut assembly may be permanently fixed within the baseplate. For example, the pivot bolt may have a threaded portion attached to the axle nut assembly to secure the baseplate and suspension bracket together. In some embodiments, the baseplate may include opposing first and second primary surfaces. For example, the The main surface of the baseplate can be configured to match a bottom surface of the skateboard deck. The main surface of the baseplate may include a recessed cavity. The axle nut assembly can be permanently fixed within the recessed cavity. In some example aspects of the present description, a portion of the bar is arranged between a first hexagonal portion and a second hexagonal portion. The first hexagonal portion, the portion of the bar, and the second hexagonal portion may define a central hole. In some example aspects of this description, an inner surface of the center hole may include cut threads. Alternatively, an outer surface of the shaft nut assembly may have a smooth, unthreaded circular diameter. In some example aspects of this description, the inner surface of the center hole may include a threaded end opposite a hollow end with a smooth circular diameter without threads. In some example aspects of the present description, the axle nut assembly is molded into the base plate. In some example aspects of the present description, the outer surface of the shaft nut assembly may include a first hexagonal portion that projects radially in a direction generally perpendicular to a first shaft from the outer surface of the bar portion to form an annular surface with a hexagonal outer edge and / or a second hexagonal portion that projects radially in a direction generally perpendicular to the first shaft from the outer surface of the bar portion to form an annular surface with a hexagonal outer edge. In some exemplary aspects of the present description, a first hexagonal portion includes a first vertical surface and / or a second vertical surface projecting radially from the outer surface of the bar portion in a direction generally perpendicular to the first shaft. In some exemplary aspects of the present description, the second hexagonal portion further comprises a first vertical surface and / or a second vertical surface projecting radially from the outer surface of the bar portion in a direction generally perpendicular to the first shaft. In some example aspects of the present description, a first hexagonal portion may include a plurality of wall faces that are arranged between the first vertical surface and the second vertical surface that are positioned in a direction parallel to the first tree. In some example aspects of the present IVIA / a / ¿U¿ó / UU 1 description, the hexagonal wall faces are connected to form an outer edge of the annular surface, wherein the outer edge of the annular surface is hexagonal in shape. For example, the second hexagonal portion further comprises a plurality of wall faces that are arranged between the first vertical surface and the second vertical surface that are positioned in a direction parallel to the first shaft. In some embodiments, the hexagonal wall faces are connected to form the outer edge of the annular surface. For example, the outer edge of the annular surface may be hexagonal in shape. In some example aspects of the present description, the first and second vertical wall surfaces are configured to prevent linear movement parallel to the first tree. In some exemplary aspects of the present description, the plurality of wall faces of the first hexagonal portion and the plurality of wall faces of the second hexagonal portion are configured to prevent rotary motion around the first tree. In some example aspects of this description, the axle nut assembly may include a first hexagonal nut. The first hexagonal nut may include a nylon insert. An inner surface of the first hexagonal nut may include a thread. In addition, or alternatively, the axle nut assembly may include an elongated hollow rod portion. In addition, or alternatively, the axle nut assembly may include a second hexagonal nut. In some embodiments, the second hexagonal nut may be the same size as the first hexagonal nut. In addition, or alternatively, an inner surface of the second hexagonal nut may include a smooth surface. The first hexagonal nut may be attached to the elongated hollow rod portion at a first end of the elongated hollow rod portion.The second hexagonal nut can be attached to the elongated hollow rod portion at one end. A through-hole is formed through the entire shaft nut assembly. In some example aspects of this description, the pivot bolt is configured to function to move and tighten into the base plate. In some example aspects of the present description, the pivot bolt may include a first end comprising a threaded portion and a second end including a bolt head. In some example aspects of this description, the motherboard is made of aluminum. In some example aspects of this description, the motherboard has the shape of a rectangle, oval, and / or square. In some example aspects of this description, the suspension support includes an aluminum suspension bracket configured to hold a steel bar. In some aspects of the present description, a skateboard includes a skateboard deck and any of the skateboard axle configurations described herein. An example of the present description relates to a method for producing a skateboard axle. In some embodiments, the method may include receiving a base plate comprising a recessed cavity. The method may include placing an axle nut assembly within the recessed cavity, oriented so as to receive a threaded end of a pivot bolt. The method may include molding molten aluminum around the axle nut assembly. The molten aluminum may be disposed between an outer surface of the axle nut assembly and an inner surface of the recessed cavity within the base plate. In some example aspects of the present description, the method includes applying gravity pressure through the casting. In some aspects of the present example IVIA / a / ¿U¿ó / UU 1 description, the method includes applying pressure through die casting. Reference will now be made in detail to modalities, one or more examples of which are illustrated in the figures. Each example is provided to explain the modalities, not as a limitation of this description. In fact, it will be evident to those skilled in the art that various modifications and variations can be made to the modalities without departing from the scope or spirit of this description. For example, features illustrated or described as part of one modality can be used with another modality to produce yet another modality. Therefore, the aspects of this description are intended to cover such modifications and variations. With reference now to the figures, the example implementations of the present description will be discussed in more detail. Figures 1A–1D collectively provide four profile views of a skateboard according to the example modalities described herein. More specifically, Figure 1A provides a top perspective view of a conventional example skateboard 100, while Figure 1B provides a bottom perspective view of the skateboard 100, Figure 1C provides a bottom plan view of the skateboard 100, and Figure 1D provides a top plan view. IVIA / a / ¿U¿ó / UU 1 IVIA / a / ¿U¿ó / UU 1 Side of skateboard 100. Skateboard 100 includes a skateboard deck 102 formed as an elongated board having two opposing surfaces, specifically, a top surface 104 and a bottom surface 106. The top surface 104 of the skateboard deck 102 corresponds to a surface on which the skateboard user stands. The bottom surface 106 of the skateboard deck 102 corresponds to a surface on which two skateboard axles 108 are mounted using, for example, machined screws or bolts. Wheels 110 and bearings assembled within the wheels can be mounted on the axle bars. In one example, each skateboard axle 108 can have two wheels 110 and four bearings. Figure 2 provides an isometric view of a fully assembled skateboard axle 108 according to example aspects of the present description. More particularly, the skateboard axle 108 in Figure 2 includes an axle 200, a suspension bracket 206, and a base plate 208. The axle 200 can be characterized by a first end 202 and a second end 204 opposite the first end of the axle 202. The suspension bracket 206 can be configured to clamp the axle 200, for example, such that a major axis of the axle 200 coincides with a major axis of the suspension bracket 206. Figure 2 shows an orientation of the axle 200 within the suspension bracket 206. The axle 200 can include two axle ends, specifically, the first end 202 and the second end 204, each axle end configured to extend beyond the surfaces of the suspension bracket 206.The first end 202 and the second end 204 of the axle 200 may also have threads cut into each end of the shaft so that they are configured to attach bearings and wheels to it (e.g., wheels 110). In some embodiments, the axle 200 may be formed from steel or another suitable material. The base plate 208 may be configured to be mounted on a bottom surface of a skateboard deck (e.g., the bottom surface 106 of the skateboard deck 102). Figures 3 and 4 provide exploded views of a skateboard axle 108, as per the example aspects of this description. Figure 3 provides an exploded side view of the skateboard axle 108, while Figure 4 provides an exploded front view. More specifically, skateboard axle 108 may include a pivot bolt 300, a first washer 302, a first bushing 304, a suspension bracket 206, a second bushing 306, a second washer 308, a base plate 208, an axle nut assembly 310, and a pivot cup 312. Skateboard axle 108 may notably include the inverted pivot bolt 300 with the bolt head 314 protruding from the base plate 208 and the axle nut assembly 310 permanently fixed within the base plate 208. The suspension components of the skateboard axle IVIA / a / ¿U¿ó / UU 1 108 includes the first washer 302, the first bushing 304, the suspension bracket 206, the second bushing 306, the second washer 308, and the base plate 208. The suspension bracket 206 may include a mounting flange with a through hole in the center of the flange. The suspension mount 206 may have a special pivot point in its design, which may be surrounded by a pivot cup 312. The first bushing 304 and the second bushing 306 may be positioned along the pivot axis 300 and on both sides of the mounting flange protruding from the suspension mount 206 to hold the suspension mount 206 in place relative to the base plate 208 by tightening the pivot bolt 300 into a threaded axle nut retainer incorporated by the axle nut assembly 310. In some example embodiments, the first washer 302 and / or the second washer 308 may be made of steel or another suitable material.In some example embodiments, the first bushing 304 and / or the second bushing 306 may be made of rubber or an elastomeric material, such as, but not limited to, an elastomeric plastic or other suitable material. In some example embodiments, the pivot cup 312 may be made of an elastomeric material, such as, but not limited to, an elastomeric plastic or other suitable material. Figure 5 provides another exploded view of the skateboard axle 108, showing in particular example aspects of the base plate 208. Figure 5 also shows the pivot bolt 300 and its orientation to the axle nut assembly 310, both on either side of the axle base plate 208. In some examples, the base plate 208 may be made of aluminum or another suitable material. Additional aspects of the base plate 208 are shown, for example, in Figures 10A-10C, 11A-11B, and 12A-12B. Figures 6A-6C provide respective assembled views of a skateboard axle 108 according to example aspects of the present description. Figure 6A provides a top view of the assembled skateboard axle 108, Figure 6B provides a front view of the assembled skateboard axle 108, and Figure 6C provides a bottom view of the assembled skateboard axle 108. The skateboard axle 108 includes a suspension bracket 206 and a base plate 208. The suspension bracket 206 is configured to support the axle 200 as illustrated. The base plate 208 may include a plurality of through-holes for mounting 600. In some examples, as illustrated in Figures 6A-6C, the base plate 208 is generally rectangular and includes four through-holes for mounting 600, one at each corner of the generally rectangular base plate 208.It should be noted that the 208 motherboard could also have different shapes, such as, but not limited to, a square, circular, or oval shape. Additionally, the number and location of the mounting through-holes may vary. The number of 600 holes may vary depending on the different skateboard models. For example, a 208 baseplate may include two, three, four, five, six, seven, eight, or another number of 600 mounting through-holes. A 108 skateboard truck can be mounted to a skateboard deck (for example, the 102 skateboard deck as illustrated in Figures 1A-1D) by means of machined screws or bolts and nuts, secured in the assembly through the 600 holes. Figures 7A-7B represent respective side views of an assembled skateboard axle 108 according to example aspects of the present description. Figure 7A provides a full side view of the skateboard axle 108, while Figure 7B provides a side cross-section view of the skateboard axle 108. Figure 7A shows the suspension bracket 206 with the axle 200 assembled relative to the base plate 208 via the pivot bolt 300 and hex nut 310. As best illustrated in the cross-section view of Figure 7B, the axle nut assembly 310 is positioned with its axle portion permanently fixed within the recess 500 of the base plate 208. The axle nut assembly 310 is formed to define a central hole 700 throughout, with threads, into which the pivot bolt 300 can slide and engage the threads. The pivot bolt 300 can be configured to tighten variably on the base plate 208.The more you tighten the bolt. IVIA / a / ¿U¿ó / UU 1 pivot 300, more clearance is provided between the skateboard 108 and the ground surface. The pivot bolt 300 is configured to orient itself with respect to a skateboard deck so that a first end (corresponding to a threaded portion) is generally turned toward the underside of a skateboard deck (e.g., the underside 106 of the skateboard deck 102). Figures 8A-8D provide respective views of a 310 shaft nut assembly according to example aspects of the present description. Figure 8A shows a complete side view of the 310 shaft nut assembly, Figure 8B shows a cross-sectional side view of the 310 shaft nut assembly, Figure 8C shows a bottom perspective view of the 310 shaft nut assembly, and Figure 8D shows a top perspective view of the 310 shaft nut assembly. The 310 shaft nut assembly may include a portion of the 800 bar, a first hexagonal portion 808, and a second hexagonal portion 802. The first hexagonal portion 808 may be formed adjacent to the portion of the 800 bar at a first end of the 800 bar. The 310 shaft nut assembly may include a nylon insert ring 806. The shaft nut assembly may also include threads 804 arranged on the inner surface of the 800 bar. The second hexagonal portion 802 may be formed adjacent to the portion of the 800 bar at a second end opposite the first end of the 800 bar. The first hexagonal portion 808 and the second hexagonal portion 802 may project radially in a generally perpendicular direction (e.g., within 15 degrees of a 90-degree angle) to a first shaft 814 extending parallel to the outer and / or inner surface of the 800 shaft.The first hexagonal portion 808 may include a first vertical wall face 808A and a second vertical wall face 808B. The first vertical wall face 808A and the second vertical wall face 808B may project radially in a direction generally perpendicular to the first shaft 814 from the outer surface of the shaft 800. The first hexagonal portion 808 may include a plurality of horizontal wall faces 812A-812E that may be arranged between the first vertical surface 808A and the second vertical surface 808B in a direction generally parallel to the first shaft 814. The second hexagonal portion 802 may be formed adjacent to the shaft portion 800 at a second end of the shaft 800. The second hexagonal portion may include a first vertical wall face 802A and a second vertical wall face 802B.The first vertical wall face 802A and the second vertical wall face 802B may project radially in a direction generally perpendicular to the first shaft 814 from the outer surface of the bar 800. The second hexagonal portion 802 may include a plurality of horizontal wall faces 810A-810F that may be arranged between the first vertical surface 802A and the second vertical surface 802B in a direction generally parallel to the first shaft 814. The first hexagonal portion 808, the bar 800, and the second hexagonal portion 800 may be formed to define a center hole 700 through them. An inner surface of the center hole 700 formed along the first hexagonal portion 808, the portion of the bar 800, and the second hexagonal portion 802 may include cut threads. The cut threads 804 of the shaft nut assembly 310 can be mated with a threaded portion of the pivot bolt 300. The vertical wall faces 808A, 808B, 802A, and 802B can be configured to prevent linear movement in a direction parallel to the first shaft 814. The plurality of horizontal wall faces 810A–810F and 812A–812F can be configured to prevent rotary movement around the first shaft 814. While the first hexagonal portion 808 and the second hexagonal portion 802 can be formed as a nut of generally hexagonal shape, it should be appreciated that other polygonal variations are also within the scope of the described technology. The bar portion 800 of the shaft nut assembly can be formed with a smooth, unthreaded, circular outer diameter surface. The shaft nut assembly 310 can also include a special nylon insert ring 806 that facilitates the coupling of the pivot 300 with the shaft nut assembly 310. Figures 9A-9D provide respective views of a pivot bolt 300 according to example aspects of the present description. Figure 9A represents a full side view of the pivot bolt 300, Figure 9B represents an isometric view of a pivot bolt, Figure 9C represents a cross-sectional side view of the pivot bolt 300, and Figure 9D represents a top view of the pivot bolt 300. The pivot bolt 300 may include opposite first and second ends, with the first end of the pivot bolt 300 corresponding to a threaded portion 900 and the second end of the pivot bolt 300 corresponding to the bolt head portion 314.The threaded portion 900 of the pivot bolt 300 can be engaged and used to secure the pivot bolt 300 to an axle nut assembly (e.g., axle nut assembly 310) to secure a base plate (e.g., base plate 208) and a suspension bracket (e.g., suspension bracket 206) together relative to a bottom surface of a skateboard deck (e.g., bottom surface 106 of skateboard deck 102). In some instances, the head portion of the bolt 314 can be configured into a polygonal shape, such as, but not limited to, a round or hexagonal shape. The pivot bolt 300 can be made. IVIA / a / ¿U¿ó / UU 1 Turn with tools from the outer surface of the bolt head portion 314 (e.g., the hexagonal shape), as shown in the top view of Figure 9D. Alternatively, a hex key can also turn the pivot bolt 300 by placing the hex key in the hexagonal hole 904 on the upper portion of the bolt head portion 314. Figures 10A-10C provide respective views of an example baseplate 208 according to example aspects of the present description. Figure 10A shows a top view of the baseplate 208, while Figure 10B shows a bottom view of a baseplate 208, and Figure 10C shows a side cross-section view of the baseplate 208. The baseplate 208 may include opposing first and second primary surfaces, such as first primary surface 910 and second primary surface 912. The first primary surface 910 of the baseplate 208 is configured to align with a bottom surface of a skateboard deck (for example, the bottom surface 106 of skateboard deck 102).The first primary surface 910 of the base plate 208 may include a recess 500, corresponding to a recessed cavity within which the shaft nut assembly (e.g., shaft nut assembly 310) can be permanently fixed (e.g., by means of a molding process). The base plate 208 may also include a molded cavity 914. The molded cavity 914 may include an opening through the recess 500 and into the second primary surface 912 of the base plate 208. The molded cavity 914 can be configured to receive the shaft nut assembly (e.g., shaft nut assembly 310) permanently by means of a molding process. For example, the shaft nut assembly can be permanently fixed within the molded cavity 914 by means of a molding process (e.g., cast-in-place molding, etc.).The shaft nut assembly (e.g., shaft nut assembly 310) can be placed inside the molded cavity 914. Molten aluminum (e.g., liquid aluminum) can be poured into a closed baseplate mold and surround the shaft nut assembly, which is placed (e.g., suspended) inside the molded cavity 914. The molten aluminum can be positioned between the outer surface of the shaft nut assembly (e.g., shaft nut assembly 310) and the inner surface of the molded cavity 914. The molded cavity 914 can have the same inner dimension as a major outer surface of the shaft nut assembly (e.g., shaft nut assembly 310). This can permanently fix (e.g., bond) the shaft nut assembly (e.g., shaft nut assembly 310) within the molded cavity 914. IVIA / a / ¿U¿ó / UU 14^7 IVIA / a / ¿U¿ó / UU 1 Figures 11A-11B provide respective views of an example base plate 208 with the pivot bolt 300 and shaft nut assembly 310 installed according to example aspects of the present description. Figure 11A represents a complete side view of such an assembly, while Figure 11B represents a cross-sectional side view of such an assembly. In particular, Figure 11A shows an orientation of the pivot bolt 300 with respect to the base plate 208, while Figure 11B shows the pivot bolt 300 engaged with the threads of a shaft nut assembly 310. The first hexagonal portion (e.g., hexagonal portion 808 as shown in Figures 8A-8D) and the second hexagonal portion (e.g., hexagonal portion 802 as shown in Figures 8A-8D) of the shaft nut assembly 310 are permanently fixed within the recess of the base plate 500.The 310 shaft nut assembly can be molded into the 914 molded cavity. Figures 12A-12D provide additional views of the base plate 208 and the shaft nut assembly 310. Figure 12A shows an isometric cross-sectional view of a base plate with a shaft nut assembly 310 permanently attached to the base plate 208, Figure 12B provides a side view of the shaft nut assembly 310, Figure 12C provides a top view of the shaft nut assembly, and Figure 12D provides a cross-sectional view. IVIA / a / ZUZÓ / UU 1 Isometric view of a base plate 208 with a shaft nut assembly 310 permanently fixed to the base plate 208. Figure 12A represents the shaft nut assembly 310 permanently fixed within the base plate 208. A first shaft 814 may generally extend parallel to the inner surface of the shaft nut assembly 310. The shaft-shaped figures 1204 and 1206 represented at opposite ends of the first shaft 814 indicate a direction of linear motion along the first shaft 814. Figure 12B provides a side view of the shaft nut assembly as shown in Figure 8A. The 310 shaft nut assembly may include the first hexagonal portion 808, the bar 800, and the second hexagonal portion 802. Figure 12C shows a top view of the 310 shaft nut assembly. Figure 12D shows an additional cross-sectional view of the base plate 208.The shaft-shaped figures show a rotational axial movement direction 1208 around the first shaft 814. The plurality of wall faces (e.g., the plurality of wall faces 810A-810F and 812A-812F) can be permanently fixed within the base plate. The plurality of wall faces can prevent movement in the rotational axial movement direction 1208. Although the subject matter has been described in detail with respect to several specific exemplary forms, each example is provided for illustrative purposes only, not to limit the description. Those skilled in the art, upon understanding the foregoing, can readily produce modifications, variations, and / or equivalents of such forms. Consequently, the description of the subject matter does not preclude the inclusion of such modifications, variations, and / or additions to the subject matter that would be readily apparent to a person skilled in the art. For example, features illustrated and / or described as part of one form can be used with another form to produce yet another form. Therefore, the description herein is intended to cover such alterations, variations, and / or equivalents. It is hereby stated that, as of this date, the best method known to the applicant for putting the aforementioned invention into practice is the one that is clear from the present description of the invention.

Claims

1. A skateboard axle, characterized in that it comprises: a base plate; a suspension bracket configured to hold an axle; an axle nut assembly permanently fixed within the base plate; a pivot bolt having a threaded portion attached to the axle nut assembly to secure the base plate and the bracket together; and wherein the base plate comprises first and second opposing primary surfaces, the first primary surface being configured to be positioned coincidentally with a lower surface of a skateboard deck; and wherein the first primary surface of the base plate comprises a recessed cavity, in which the axle nut assembly is permanently fixed within the recessed cavity.

2. The skateboard axle according to claim 1, characterized in that the axle nut assembly comprises an axle portion disposed between a first hexagonal portion and a second hexagonal portion, wherein the first hexagonal portion, the axle portion and the second hexagonal portion define a central hole.

3. The skateboard axle according to claim 2, characterized in that: an inner surface of the central hole comprises cut threads; and an outer surface of the axle nut assembly has a smooth circular diameter without threads.

4. The skateboard axle according to claim 3, characterized in that the inner surface of the central hole further comprises a threaded end opposite a hollow end with a smooth circular diameter without threads.

5. The skateboard axle according to claim 1, characterized in that the axle nut assembly is formed by molding into the base plate.

6. The skateboard axle according to claim 3, characterized in that the outer surface of the axle nut assembly further comprises: the first hexagonal portion projecting radially in a direction perpendicular to a first shaft from the outer surface of the bar portion to form an annular surface with a hexagonal outer edge; and the second hexagonal portion projecting radially in a direction perpendicular to the first shaft from the outer surface of the bar portion to form an annular surface with a hexagonal outer edge.

7. The skateboard axle according to claim 6, characterized in that the first hexagonal portion further comprises a first vertical surface and a second vertical surface that project radially from the outer surface of the bar portion in a direction generally perpendicular to the first axle, and wherein the second hexagonal portion further comprises a first vertical surface and a second vertical surface that project radially from the outer surface of the bar portion in a direction generally perpendicular to the first axle.

8. The skateboard axle according to claim 7, characterized in that the first hexagonal portion further comprises a plurality of wall faces arranged between the first vertical surface and the second vertical surface, which are positioned in a direction parallel to the first axle, wherein the wall faces connect to form an outer edge of the annular surface, wherein the outer edge of the annular surface is hexagonal in shape, and wherein the second hexagonal portion further comprises a plurality of wall faces arranged between the first vertical surface and the second vertical surface, which are positioned in a direction parallel to the first axle, wherein the wall faces connect to form the outer edge of the annular surface, wherein the outer edge of the annular surface is hexagonal in shape.

9. The skateboard axle according to claim 7, characterized in that the first and second vertical surfaces are configured to prevent linear movement parallel to the first axle.

10. The skateboard axle according to claim 8, characterized in that the plurality of wall faces of the first hexagonal portion and the plurality of wall faces of the second hexagonal portion are configured to prevent rotary motion about the first axis.

11. The skateboard axle according to claim 1, characterized in that the axle nut assembly comprises: a first hexagonal nut, wherein the first hexagonal nut comprises a nylon insert, wherein an internal surface of the first hexagonal nut comprises a thread; an elongated hollow rod portion; a second hexagonal nut, wherein the second hexagonal nut is the same size as the first hexagonal nut; wherein an internal surface of the first hexagonal nut comprises a smooth surface; wherein the first hexagonal nut is fixed to the elongated hollow rod portion at a first end of the elongated hollow rod portion; wherein the second hexagonal nut is fixed to the elongated hollow rod portion at a second end of the elongated hollow rod portion;and in which a through hole is formed through the entire axle nut assembly.; 12. The skateboard axle according to claim 1, characterized in that the pivot bolt is configured in its operation to move so that it is tightened in the base plate.

13. The skateboard axle according to claim 1, characterized in that the pivot bolt further comprises a first end comprising the threaded portion and a second end comprising a bolt head.

14. The skateboard axle according to claim 1, characterized in that the base plate is made of aluminum.

15. The skateboard axle according to IVIA / a / ¿U¿ó / UU 1 claim 1, characterized in that the base plate has the shape of a rectangle, an oval or a square.

16. The skateboard axle according to claim 1, characterized in that the suspension support comprises an aluminum suspension support configured to support a steel shaft.

17. A skateboard, characterized in that it comprises: a skateboard deck; and the skateboard axle according to claim 1.

18. A method for producing a skateboard axle, characterized in that it comprises: receiving a base plate comprising a recessed cavity; placing an axle nut assembly within the recessed cavity, oriented so as to receive a threaded end of a pivot bolt; and molding molten aluminum around the axle nut assembly, wherein the molten aluminum is disposed between an outer surface of the axle nut assembly and an inner surface of the recessed cavity within the base plate.

19. The method according to claim 18, characterized in that it further comprises applying pressure through gravity casting. IVIA / a / ¿U¿ó / UU 1 20. The method according to claim 18, characterized in that it further comprises applying pressure through die casting.

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