EP3603759B1 - Truck carrying adapter for skateboard - Google Patents
Truck carrying adapter for skateboard Download PDFInfo
- Publication number
- EP3603759B1 EP3603759B1 EP19186382.8A EP19186382A EP3603759B1 EP 3603759 B1 EP3603759 B1 EP 3603759B1 EP 19186382 A EP19186382 A EP 19186382A EP 3603759 B1 EP3603759 B1 EP 3603759B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- truck
- carrying member
- skateboard
- pivoting
- truck carrying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/01—Skateboards
- A63C17/011—Skateboards with steering mechanisms
- A63C17/012—Skateboards with steering mechanisms with a truck, i.e. with steering mechanism comprising an inclined geometrical axis to convert lateral tilting of the board in steering of the wheel axis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/0046—Roller skates; Skate-boards with shock absorption or suspension system
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/0093—Mechanisms transforming leaning into steering through an inclined geometrical axis, e.g. truck
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/01—Skateboards
- A63C17/014—Wheel arrangements
- A63C17/015—Wheel arrangements with wheels arranged in two pairs
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/20—Shock or vibration absorbing
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/42—Details of chassis of ice or roller skates, of decks of skateboards
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/54—Snowboard or ski binding or interface allowing pivoting motion during riding
Definitions
- the field of the invention is skateboard trucks, more specifically, truck carrying members for improving the movement of conventional trucks.
- Skateboards have been around for a long time and different riders have introduced different riding styles over the years.
- U.S. Patent No. 6,793,224 to Stratton titled "Truck for Skateboards” tries to simulate the dynamics of a surfboard with a skateboard truck with a centering mechanism.
- the second axis of rotation is "oblique to the direction of motion.”
- the centering mechanism in Stratton is overly complex and requires numerous parts, including a spring-loaded link, a link pin, and a heavy-duty compression spring.
- the complex design is not durable and fails to provide a natural and smooth transition between turns.
- skateboard truck adaptor that can be used with a conventional truck and has a simple and durable design to improve the maneuverability of the skateboard and provide a more comfortable and enjoyable riding experience.
- U.S. Pat. Publ. No. 2018/0193721 to Martinez titled "Removable Assembly for a Skateboard” teaches a surfskate truck assembly that allows for side-to-side movement.
- the design is overly complex and uses a torsion spring, which does not provide a natural and smooth transition between turns.
- the truck assembly appears to be angled towards the skateboard.
- U.S. Pat. No. 7,810,825 to Cole titled "Braking And Steering System For A Truck, Wheeled Platform, Skateboard Or Vehicle” teaches a truck assembly that moves side-to-side. Again, the design is overly complex and the truck assembly appears to be parallel to the skateboard.
- WO 01/60467 to Tan titled "Skateboard” teaches a truck assembly that allows for rocking motion, but not side-to-side motion. The truck assembly also appears to be parallel to the skateboard.
- the present inventive subject matter provides apparatus, systems, and methods in which a truck carrying member, for coupling a conventional truck to a skateboard, increases the maneuverability of a skateboard by allowing the skateboard to turn and tilt while providing a centering mechanism with smooth transitions between turns.
- An embodiment of the current invention comprises a truck carrying member that couples a truck to a skateboard, the truck comprising a wheel axle, comprising a base plate comprising a first mounting surface for coupling with the skateboard and a first pivoting surface, wherein the first mounting surface and the first pivoting surface form a first obtuse angle; a pivoting plate comprising a second mounting surface for coupling with the truck and a second pivoting surface, wherein the second mounting surface and second pivoting surface form a second obtuse angle; wherein the first pivoting surface and the second pivoting surface are rotatably coupled at a pivot comprising a flexible member that biases the pivoting plate from an off-center position to a center position relative to a longitudinal axis of the base plate; characterised in that the second obtuse angle is less than the first obtuse angle such that the second mounting surface extends downward from the skateboard when the truck carrying member is attached to a bottom surface of the skateboard.
- the pivoting plate may have a first recess sized and dimensioned to receive a first end of the flexible member.
- the base plate may have a second recess sized and dimensioned to receive a second end of the flexible member.
- the flexible member may mechanically lock with the pivoting plate and base plate to prevent rotation with respect to the first end and second end of the flexible member, respectively.
- the flexible member may have a non-cylindrical cross-section.
- the pivot may further comprise a bolt about which the pivoting plate and base plate pivot.
- the flexible member maybe sufficiently flexible to allow the pivoting plate to rotate at least 15 degrees relative to the base plate.
- the pivoting plate may be at a center position relative to the base plate.
- the flexible member may comprise a bushing, and/or may comprise a polymer.
- the base plate comprises a first mounting surface for attaching the skateboard and a first pivoting surface that is coupled with the pivot, and the first mounting surface and first pivoting surface forms a first obtuse angle;
- the pivoting plate comprises a second mounting surface for attaching the truck and a second pivoting surface that is coupled with the pivot, and the second mounting surface and second pivoting surface forms a second obtuse angle that is less than the first obtuse angle.
- the second mounting surface may extend downward between 5 degree to 45 degrees, inclusive, from the bottom surface of the skateboard, when the truck carrying member is attached to a bottom surface of the skateboard.
- the truck carrying member may increase the truck's turn angle by 5 to 45 degrees, inclusive, and decreases the truck's lean angle by 5 to 45 degrees, inclusive, compared to when the truck is attached to the skateboard without the truck carrying adapter.
- the second pivoting surface of the pivoting plate may further comprises a notch; and the first pivoting surface of the base plate may further comprises a protrusion that is sized and dimensioned to move within the notch.
- the pivoting plate may have a range of motion of less than 45 degrees clockwise and counterclockwise away from the default position.
- the truck carrying member comprises a pivoting plate rotatably coupled with a base plate at a pivot.
- the base plate is coupled with the skateboard deck, while the pivoting plate is coupled with a truck.
- the pivot comprises an elastic flexible member coupled with both the pivoting plate and the base plate. Due to the elasticity of the flexible member, the pivoting plate resists rotation with respect to base plate and automatically returns to a default position after rotation ( e.g ., center). In preferred embodiments of the invention, the resistance increases exponentially as the pivoting plate turns, which gives the rider more control of the skateboard.
- the flexible member can be of any suitable shape, but preferably the shape of a bushing with a non-cylindrical cross-section that functions as a mechanical lock.
- the non-cylindrical design does not allow the pivoting plate to rotate without causing a shape change in the flexible member.
- the flexible member is sufficiently flexible to allow the pivoting plate to rotate at least 10 degrees from a center position relative to the base plate.
- the flexible member can be made with any suitable material that is sufficiently flexible and elastic. Contemplated materials include a man-made polymer (e.g. , urethane, isoprene, resilient plastic), a natural polymer ( e.g., rubber), or any mixture thereof ( e.g., silicone rubber).
- the truck carrying member has a base plate and a pivoting plate, each having a mounting surface and a pivoting surface that form an obtuse angle.
- the obtuse angle in the pivoting plate is smaller than the obtuse angle in the base plate, so that the mounting surface of the pivoting plate extends downward from its pivoting surface when the truck carrying member is attached to a bottom surface of the skateboard.
- the downward mounting surface of the pivoting plate increases a truck's turn angle and decreases the truck's lean angle compared to when the truck is used without the truck carrying adapter, and makes the skateboard more agile by allowing the skateboard to turn more easily and rapidly.
- Contemplated downward angles are between 0 and 85 degrees, inclusive. In preferred embodiments, the downward angle is between 5 and 45 degrees, inclusive.
- the truck carrying member comprises a pivoting plate with a mounting surface for attaching a truck and at least two fasteners for attaching the pivoting plate to a skateboard or a base plate.
- the fasteners comprise flexible members that allow the pivoting plate to tilt.
- the flexible members can be of any shape, but preferably the shape of a cylindrical bushing. In preferred embodiments, the flexible members have sufficient flexibility to allow the pivoting plate to tilt at least 10 degrees and as much as 80 degrees, around a longitudinal axis of the skateboard.
- the flexible members can also absorb shock ( e.g., due to sudden landing) and dampen vibration from the ground ( e.g., due to uneven surface) and thus provides a more smooth and comfortable riding experience.
- the inventive subject matter comprises the steps of: (i) removing a conventional truck from a skateboard deck, (ii) attaching the conventional truck to a pivoting plate of a truck carrying member ( e.g ., front or rear adapter), and (iii) coupling the truck carrying member to the skateboard. It is further contemplated that in some embodiments steps (ii) and (iii) could be reversed.
- the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term "about.” Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
- inventive subject matter is considered to include all possible combinations of the disclosed elements.
- inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed.
- Coupled to is intended to include both direct coupling (in which two elements that are coupled to each other contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms “coupled to” and “coupled with” are used synonymously.
- FIG 1 is a perspective view of a conventional skateboard 100.
- the skateboard 100 has a deck 101, a grip surface 102, a front truck carrying member 110, a front truck 140, a vibration absorbing pad 160, and a rear truck 190.
- Each truck (140 and 190) has an axle (front truck axle not shown, rear truck axle 193) and two wheels (141,145, 191, and 195).
- Fastening mechanisms including bolts 103 and screws, adhesive, etc., are necessary for the assembly of the skateboard.
- the bolts 103 are arranged in a standard pattern across most skateboard products.
- Some embodiments of the current inventive subject matter conform to this standard pattern, so that the adaptors in the current inventive subject matter can be easily mounted to existing skateboards or skateboards made by other manufacturers.
- the grip surface 102 is covered by grip tapes that help a rider's feet stick to the board, especially during turning.
- the current inventive subject matter allows the board to tilt at a larger angle during turning than a board with a conventional truck, so a rider can rely less on the frictional force provided by the grip tape, and more on the support from the deck as the centripetal force required for turning.
- FIG 2 is a perspective view of a conventional skateboard truck 200.
- a conventional truck 200 has a pivot axis 250 and a bushing 215 that allows the wheel axle 240 to turn and to tilt (253 and 254).
- the tiling and turning motion (253 and 254) are very limited in magnitude and scope, and can be slightly non-planar due to wobble (251 and 252) at the pivot 255.
- the tiling and turning motion (253 and 254) also allows a conventional truck to turn. Specifically, when a rider stands on the skateboard with his feet perpendicular to the longitudinal axis of the skateboard, the rider can turn the skateboard by shifting his weight from toe to heal, or vice versa.
- the toe side of the deck dips towards the ground while the heal side of the deck lifts.
- the wheels on the left side of the skateboard [are tucked in closer to the deck than the wheels on the right side.
- the wheels on the left move closer together and the wheels on the right move apart.
- Figure 3 is a perspective view of an embedment of a skateboard 300 having a deck 301, a front truck carrying member 305, a rear truck carrying member 306, a front truck 340, and a rear truck 390.
- Figure 4 is a side view of the skateboard 300 of Fig. 3 .
- the front truck carrying member 305 has a base plate 310, a pivoting plate 320, and a biasing member 330.
- the rear truck carrying member 306 has a base plate 360, a pivoting plate 370, and bushings ( e.g., 380).
- a truck carrying member (305 and 306) can provide a conventional skateboard with advantageous technical effects, including increased maneuverability, without any modification to a conventional skateboard deck 101 or conventional truck 200.
- the advantages include easier and shaper turns, shortened turning radius, smoother transition between turns, and increased tilting potential of deck 301. These technical improvements enable the rider to make shaper turns and experience an enhanced riding sensation.
- a truck carrying member (305 and 306) allows the rider to generate speed without pumping ( i.e ., pushing off of the ground with one's foot), for example, by performing an "S" turn.
- a truck carrying member (305 or 306) is an adaptor that connects a skateboard deck 301 to a truck (340 or 390).
- a truck carrying member (305) is also referred to as a "front adapter.”
- a truck carrying member 306 is also referred to as a "rear adapter.”
- the truck carrying members (305 or 306) can be used either on the front truck 340 or on the back truck 390 of a skateboard.
- a rear adaptor 306 can be installed on the front end of a skateboard, and a front adapter 305 can be used on the back end of a skateboard.
- rear adaptors 306 and front adapters 305 can be used in any combination on a skateboard.
- a skateboard can have a rear adaptor 306 mounted to both front and rear trucks (340 and 390) simultaneously, which best serves skateboarding during high speed, sliding, and hard cornering.
- the truck carrying members (305 or 306) can be of any suitable construction and made of any suitable material, including man-made material (e.g ., metal, composite, or plastic), a natural material (e.g ., wood or mineral), or any combination thereof. In preferred embodiments, the truck carrying members are made of aluminum.
- a base plate (310 and 360) is a component of a truck carrying member (305 or 306) that is connected to the skateboard deck 301.
- a pivoting plate (320 and 370) is a component of a truck carrying member (310 and 360) that rotates or tilts with respect to a skateboard deck 301.
- a pivoting plate 320 is coupled to a base plate 310 and can rotate with respect to the base plate 310.
- a pivoting plate 370 can tilt along the longitudinal axis of the skateboard deck 301.
- the base plate (310 or 360) can be attached to a skateboard 101 and the pivoting plate (320 or 370) can be attached to a truck (340 or 390) in any suitable manner, including using fasteners.
- Contemplated fasteners include any material or device that can fix a truck carrying member to a deck or a truck, including chemicals (e.g., adhesives, glues, etc.), mechanical connectors (e.g., bolts and screws, male-female connections, quick-release fasteners, etc.), magnets, or any combination thereof.
- the front truck carrying member 305 can increase a conventional skateboard's maneuverability by decreasing the turning circle (i.e ., turning radius) of the skateboard, which makes the skateboard more agile.
- a conventional skateboard 100 has a front truck 140 and a rear truck 190 that follow the same arc during turning.
- the rotation of the pivoting plate 320 allows the front truck 340 (which would otherwise remain stationary with respect to the skateboard deck 301) to sway side-to-side.
- the pivoting plate 320 allows the front wheels (345 and 346) to turn in a wider arc than the rear wheels (395 and 396).
- the rotation of the pivoting plate 320 allows the skateboard deck 301 to tilt more than a skateboard on conventional trucks (e.g., 200).
- the tiling angle of the deck 301 is critical to hold the rider's feet to the skateboard as they travel through the arc of a turn. As the deck 301 tilts more, it makes it easier for the rider to make a tighter turn because it can advantageously provide more centripetal force.
- the pivoting plates (320 and 370) can be used to elongate or shorten the wheelbase ( i.e., the distance between the front and rear axles of a skateboard).
- the wheelbase of a board can also change the turning circle of a skateboard. A longer wheelbase increases the turning circle, and a shorter wheelbase decreases the turning circle and makes the board more agile.
- a truck (340 or 390) can be repositioned in front of or behind the conventional location of the truck.
- the pivoting plate 320L of the front adaptor 305 is longer than the pivoting plate 320 in Figure 4 .
- the front truck 340 is located closer to the rear truck 390, so the wheelbase is decreased.
- Figure 6a is a side view of the front truck carrying member 305 of Fig 3 .
- Figure 6b is a front perspective view of the front truck carrying member 305 of Fig 3 .
- a preferred embodiment of the front truck carrying member 305 comprises a base plate 310 and a pivoting plate 320 that are rotatably coupled at a pivot 315.
- the front truck carrying member 305 also has a biasing member 330 that resists movement of the pivoting plate 320 and biases the pivoting plate 320 in a default, and preferably, centered position relative to the base plate 310.
- Figure 7 is an exploded view of another embodiment of a truck carrying member 405 comprising a base plate 410, a pivoting plate 420, a pivot coupling mechanism 440, and a biasing member 430 comprising a bushing 435.
- Figure 8 is an exploded view of the front truck carrying member 405 of Fig. 7 viewed from another perspective.
- Figure 9 is a bottom view of the front truck carrying member 405 of Fig. 7 .
- Figure 10 is a bottom rear view of the front truck carrying member 405 of Fig. 7 .
- the pivot coupling mechanism 415 comprises a bolt 416 that couples the base plate 410 to the pivoting plate 420.
- the performance of a skateboard equipped with a front adaptor 305 would be limited if the rear truck 390 is equipped with a conventional truck carrying member 200 having limited pivoting capabilities.
- the rear adapter 306 enhances the performance of a skateboard as a whole by allowing the rear end of the skateboard to tilt. In preferred embodiments, the rear adaptor 306 allows the back end of the skateboard to tilt at least 10 degrees. In especially preferred embodiments, the rear adaptor 306 allows the back end of the skateboard to tilt at least 45 degrees.
- FIG 11 is a bottom view of the rear truck carrying member 306 of Fig. 3 .
- Figure 12 is a side view of the rear truck carrying member 306 of Fig. 3 .
- Figure 13 is a rear view of the rear truck carrying member 306 of Fig. 3 .
- Figure 14 is an exploded view of the rear truck carrying member 306 of Fig. 3 .
- the rear truck carrying member 306 comprises a base plate 360 and a pivoting plate 370 that are coupled together via two axes of rotation (351 and 352). It is contemplated that flexible members (381-384) can be placed above, below, or between the base plate 360 and the pivoting plate 370.
- flexible members 381-383 are placed between the base plate 360 and the pivoting plate 370, and below the pivoting plate 370.
- the elasticity of the flexible members (381-384) and the elongated holes (371 and 372) on the pivoting plate 370 allow the pivoting plate 370 to tilt (rock and roll) with respect to the base plate 360 (see Figure 16 ).
- the flexible members (381-384) can absorb shock ( e.g., due to sudden landing) and dampen the vibration from the ground ( e.g., due to uneven surface) and thus provides a more smooth and comfortable riding experience.
- the base plate 360 of the rear truck carrying member 306 can be coupled with the skateboard 301 using fasteners, preferably holes and screws.
- the pivoting plate 370 can be coupled with a conventional truck 390 using similar fasteners. It is contemplated that the holes (373-376) on the pivoting plate 370, can be repositioned to adjust the location of the rear truck 390 relative to its conventional position (at or near the holes on the skateboard deck 301).
- the pivoting plate 470 in Figure 15b has one set of four apertures (471-474) for attaching to a truck 390.
- the pivoting plate 470 can be modified to have another set of four apertures (475-478) for attaching to a truck 390. Since the apertures (475-478) allow the truck 390 to be positioned more to the rear end of the skateboard deck 301 than apertures (471-474), the truck 390 can be located further away from the front truck 340 and the wheelbase can be increased.
- the rear truck carrying member 306 allows deck 301 to tilt along the longitudinal axis of the board more than a deck mounted to a traditional truck would tilt without the rear truck carrying member 306.
- the pivoting plate 370 can tilt at least 10 degrees, inclusive, on either side. In especially preferred embodiments, the pivoting plate 370 can tilt at least 45 degrees, inclusive, on either side.
- Figure 18 is a perspective view of the skateboard 300 in Fig. 3 , shown in a turning configuration (to the left).
- the left front wheel 345 tucks inward and rearward, and the left rear wheel 395 tucks up closer to the deck 301.
- the front right wheel 346 would tuck inward and rearward.
- the rear right wheel 396 would tuck up closer to the right side of the deck 301.
- the front truck carrying member 305 allows the front wheels (345 and 346) to tuck inward and rearward even more than those in a conventional truck 200.
- the rear truck carrying member 306 allows the rear wheels (395 and 396) to tuck up closer to the board 301 than those in a normal truck 200.
- the deck 301 is at a steeper angle, which allows the deck 301 to face the point around which the rider is turning.
- the steeper angle also serves to hold the rider's feet to the board and to provide more centripetal force required for turning.
- the feeling of a deck 301 cradling a rider's feet provides a comfortable sensation and allows the rider to corner harder and to carry more speed through a turn, without the outside wheels lifting off of the ground or loosing grip due to centrifugal force.
- the front truck carrying member 305 allows more speed to be carried through turns while reducing the turn of the rear wheels (395 and 396).
- the front adapter 305 allows the front wheels (345 and 346) to point more in the direction of turning thus making the turning circle tighter.
- the rear truck carrying member 306 allows the deck 301 to tilt while allowing the outside wheel to maintain contact with the ground during hard cornering and provide more grip from the outside wheel.
- a skateboard having both front and rear adapters (305 and 306) allows for the fastest and/or tightest and most controlled turns.
- the adapters (305 and 306) work together to allow the front of the board to rapidly change directions, and the rear adaptor 306 allows the user to pivot off of the rear wheels (395, 396) to change the direction of the skateboard, while allowing hard sharp cornering where both outside wheels contact the ground to provide grip, unlike a conventional truck where the outside wheels may lift off the ground during a sharp turn.
- Both front and rear adapters (305 and 306) help distribute force to the wheels on the outside of the turn so that more speed can be carried through the turn, whereas force is more distributed on the inside wheels in conventional trucks ( e.g ., 200).
- Figure 19 is a perspective view of a skateboard having a front adaptor 505 on the front without a rear adaptor on the rear.
- the rear truck 590 is equipped with a riser 560 ( e.g ., spacer) between the skateboard deck 501 and the truck 590.
- Figure 20 is a perspective of the skateboard of Figure 19 , with the front truck 540 and the rear truck 590 shown in a turning configuration.
- Figure 21 is a perspective view of a skateboard in Fig. 20 .
- Figure 22a is a perspective view of an embodiment of a skateboard 600 having a deck 601, a front truck carrying member 605, a front truck 640, a rear truck carrying member 606, and a rear truck 690.
- the front truck carrying member 605 couples the front truck 640 to the deck 601
- the back truck carrying member 606 couples the rear truck 690 to the deck 601.
- Figure 22b is a perspective view of an embodiment of the front and back truck carrying members (605 and 606) attached to a skateboard surface 601, without trucks.
- Figure 22c is a side view of an embodiment of front and back truck carrying members (605 and 606) attached to a skateboard 601, without trucks.
- Figure 23 ( a-f ) shows a preferred embodiment of a front truck carrying member 605 having a base plate 610 and a pivoting plate 620.
- the pivoting plate 620 has one or more fasteners for coupling with a truck 640, while the base plate 610 has one or more fasteners for coupling with the skateboard deck 601.
- Figure 23a is a right side view
- Figure 23b is a bottom left side perspective view
- Figure 23c is a bottom view
- Figure 23d is a top view
- Figure 23e is an exploded right side view
- Figure 23f is an exploded right side perspective view, of an embodiment of the front truck carrying member 605.
- the base plate 610 and pivoting plate 620 are coupled at a pivot 630 such that the pivoting plate 620 can turn with respect to the base plate 610.
- the pivot 630 has a flexible member 635 coupled with the pivoting plate 620 and base plate 610.
- the pivoting plate 620 has a recess sized and dimensioned to receive a first end of the flexible member 635.
- the base plate 610 also has a recess sized and dimensioned to receive an end of the flexible member 635.
- the pivot further comprises a bolt 631 about which the base plate 610 and pivoting plate 620 pivot.
- the base plate 610 has a mounting surface 611 for attaching a skateboard deck 601 and a pivoting surface 612 for coupling to the pivoting plate 620.
- the mounting surface 611 and pivoting surface 612 of the base plate 610 form an obtuse angle.
- the pivoting plate 620 has a mounting surface 621 for attaching a truck 640 and a pivoting surface 622 for coupling to the base plate 610.
- the mounting surface 621 and pivoting surface 622 of the pivoting plate 620 form an obtuse angle.
- the obtuse angle of the base plate 610 is larger than the obtuse angle of the pivoting plate 620, such that the mounting surface 621 of the pivoting plate 720 extends downward from the pivoting surface 622 when the truck carrying member 605 is attached to a bottom surface of the skateboard 601.
- Contemplated downward angles are between 0 and 85 degrees, inclusive. In preferred embodiments, the downward angle is between 5 and 45 degrees, inclusive. In especially preferred embodiments, the pivoting plate 620 has a downward angle between 5 and 20 degrees relative to the base plate 610.
- the pivot axis 250 is a trade-off between turn angle and lean angle.
- turn angle refers to the degree of rotation of the wheel axle within a plane parallel to the skateboard.
- a “lean angle” refers to the degree of tilt of the board relative the wheel axle. Since a traditional skateboard truck's pivot axis 250 cannot be modified from its manufactured configuration, the downward angle between the pivoting plate 620 and the base plate 610 can advantageously and effectively modify the position of the conventional truck's pivot axis to thereby increase the skateboard's turn angle and decrease the lean angle. For example, if the pivoting plate 620 has 5 degree downward angle relative to the base plate 610, the pivot axis would be adjusted by 5 degrees, so the turn of the truck's pivot axis would be increased and its lean is decreased proportionally.
- the flexible member 635 biases the pivoting plate 620 to a default position relative to the base plate 610.
- the default position is where the pivoting plate 620 is at a center position relative to the base plate 610.
- the flexible member 635 mechanically locks the pivoting plate 620 to the base plate 610 to prevent rotation to a certain extent.
- contemplated flexible members have a non-cylindrical cross-section, including triangle, square, pentagonal, or an irregular shape, such that the pivoting plate 620 cannot rotate relative to the base plate 610 without changing the shape of the flexible member 635.
- the flexible member 635 changes its shape.
- the change in the shape of the flexible member 635 in turn creates tension in the flexible member 635.
- the tension is released when flexible member 635 returns to its original shape.
- the flexible member 635 has a tendency to return to its normal shape due to its elastic nature.
- Contemplated flexible members 635 can be made with any suitable material, including man-made polymer (e.g., urethane, isoprene, resilient plastic), a natural polymer (e.g., rubber), or a mixture of man-made and natural polymers (e.g ., silicone rubber).
- the flexible member 635 is sufficiently flexible to allow the pivoting plate 620 to rotate at least 15 degrees and as much as 90 degrees relative to the base plate 610.
- the flexible member 635 comprises one or more cylindrical bushings which can be securely fastened to the pivoting plate 620 and base plate 610.
- the flexible members 635 made of an elastic material can provide resistance that is gentle and soft, which translates to a smoother transition during turning. It is further contemplated that the resistance can increase exponentially as the angle of the pivot increases, which gives the rider more control of the skateboard during turning and transitioning. In some embodiments, it is contemplated that the flexible member is sufficiently rigid to limit the range of motion of the pivoting place to within 45 degrees.
- the base plate 610 further comprises a protrusion 615 that is sized and dimensioned to move within the notch 625 in the pivoting plate 620. All degrees of motion of the pivoting plate 620 are contemplated. In preferred embodiments, due to the limit imposed by notch 625, the pivoting plate 620 has a range of motion of less than or equal to 45 degrees clockwise and counterclockwise, relative to the base plate 610. In other embodiments, the pivoting plate 620 has a range of motion of less than or equal to 30 degrees clockwise and counterclockwise, due to the limit imposed by notch 625.
- the pivot 630 provides a smooth transition between one position and another when pivoting, without any catching ( i.e ., abrupt disruption) or friction that likely to exist in dual pivot trucks especially with springs.
- the rider experiences a smooth sensation as he shifts weight between toes and heals, as the board rolls over from side to side, as if resting on a cylinder.
- Figure 24 ( a-f ) shows a preferred embodiment a pivoting plate 620 of a front truck carrying member 605.
- the pivoting plate 620 further comprises a notch 625.
- Figure 24a is a perspective bottom left side view
- Figure 24b is a bottom view
- Figure 24c is a front view
- Figure 24d is a front view
- Figure 24e is a rear view
- Figure 24f is a right side view, of an embodiment of the pivoting plate 620.
- Figure 25 (a-f) shows a preferred embodiment a base plate 610 of a front truck carrying member 605.
- the pivoting surface 612 of the base plate 610 further comprises a protrusion 615.
- Figure 25a is a bottom left side perspective view
- Figure 25b is a bottom view
- Figure 25c is a top view
- Figure 25d is a front view
- Figure 25e is a rear view
- Figure 25f is a right side view of an embodiment of the base plate 610.
- Figure 26 shows another embodiment of a rear truck carrying member 706 that couples a truck 790 to a skateboard deck 701, comprising a pivoting plate 760, without a base plate.
- Figure 26a is a bottom rear left side view of an embodiment of the rear truck carrying member 706.
- Figure 26b is a bottom rear left view of an embodiment of the rear truck carrying member 706 in a tilting position.
- Figure 26c is a right side perspective view of an embodiment of the rear truck carrying member 706 attached to a skateboard 701.
- Figure 26d is a right side view of an embodiment of the rear truck carrying member 706 attached to a truck 790 and a skateboard 701.
- Figure 26e is a right side view of an embodiment of the rear truck carrying member 706 attached to a skateboard 701, detached from a truck 790.
- Figure 26f is an exploded view of an embodiment of the rear truck carrying member 706.
- the pivoting plate 760 has a mounting surface 761 for attaching to a truck 790.
- the pivoting plate 760 can be attached to a skateboard deck 701 using one or more fasteners (702 and 703).
- the fasteners comprise one or more flexible members 781-784 that allow the pivoting plate 760 to tilt.
- the flexible members 781-784 have sufficient flexibility to allow the pivoting plate 760 to tilt at least 45 degrees.
- Contemplated flexible members 781-784 include cylindrical bushings.
Description
- The field of the invention is skateboard trucks, more specifically, truck carrying members for improving the movement of conventional trucks.
- The background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
- Skateboards have been around for a long time and different riders have introduced different riding styles over the years. Today's skateboard riders desire an enhanced performance with respect to maneuverability over traditional skateboard configurations. Unfortunately, traditional skateboard trucks are designed for street skating and aerial tricks, and do not provide enhanced maneuverability for a superior riding experience.
- Some have attempted to redesign traditional skateboards by providing a dual pivot truck with side-to-side movement. For example,
U.S. Patent No. 5,522,620 to Pracas titled "Truck For A Rideable Vehicle, Such As A Skateboard" teaches a truck design that has a second pivotal member to allow for "to and fro type swinging motion." Col. 4, line 46. While the additional axis in Pracas provides another degree of freedom, the plane of rotation is parallel to the direction of motion (i.e., deck). This design makes it difficult to control the board especially during extreme turns or at high speeds, since it does not provide a centering (i.e., biasing) mechanism. In addition, the truck is incompatible with an existing conventional truck, because the second axis is built into the truck. It would be advantageous to provide an adapter that can be used with a conventional truck and enhances its function by having a centering mechanism. - As another example,
U.S. Patent No. 6,793,224 to Stratton titled "Truck for Skateboards" tries to simulate the dynamics of a surfboard with a skateboard truck with a centering mechanism. Col. 2, line 3. Unlike Pracas, the second axis of rotation is "oblique to the direction of motion." Col. 6, line 12. However, like Pracas, the second axis of rotation is built-into the truck and therefore cannot be used on an existing conventional truck. Moreover, the centering mechanism in Stratton is overly complex and requires numerous parts, including a spring-loaded link, a link pin, and a heavy-duty compression spring. Col. 7, lines 45-50. The complex design is not durable and fails to provide a natural and smooth transition between turns. - Thus, there is still a need for a skateboard truck adaptor that can be used with a conventional truck and has a simple and durable design to improve the maneuverability of the skateboard and provide a more comfortable and enjoyable riding experience.
- As another example,
U.S. Pat. Publ. No. 2018/0193721 to Martinez titled "Removable Assembly for a Skateboard" teaches a surfskate truck assembly that allows for side-to-side movement. However, the design is overly complex and uses a torsion spring, which does not provide a natural and smooth transition between turns. In addition, the truck assembly appears to be angled towards the skateboard. - As yet another example,
U.S. Pat. No. 7,810,825 to Cole titled "Braking And Steering System For A Truck, Wheeled Platform, Skateboard Or Vehicle" teaches a truck assembly that moves side-to-side. Again, the design is overly complex and the truck assembly appears to be parallel to the skateboard. -
U.S. Pat. No. 6,979,007 to Hosoda titled "Truck Structure of Skateboard" teaches a truck assembly that moves side-to-side. Like the previously discussed examples, this design is overly complex, uses springs, and the truck assembly appears to be angled towards the skateboard. -
WO 01/60467 to Tan - The present inventive subject matter provides apparatus, systems, and methods in which a truck carrying member, for coupling a conventional truck to a skateboard, increases the maneuverability of a skateboard by allowing the skateboard to turn and tilt while providing a centering mechanism with smooth transitions between turns.
- An embodiment of the current invention comprises a truck carrying member that couples a truck to a skateboard, the truck comprising a wheel axle, comprising a base plate comprising a first mounting surface for coupling with the skateboard and a first pivoting surface, wherein the first mounting surface and the first pivoting surface form a first obtuse angle; a pivoting plate comprising a second mounting surface for coupling with the truck and a second pivoting surface, wherein the second mounting surface and second pivoting surface form a second obtuse angle; wherein the first pivoting surface and the second pivoting surface are rotatably coupled at a pivot comprising a flexible member that biases the pivoting plate from an off-center position to a center position relative to a longitudinal axis of the base plate; characterised in that the second obtuse angle is less than the first obtuse angle such that the second mounting surface extends downward from the skateboard when the truck carrying member is attached to a bottom surface of the skateboard.
- The pivoting plate may have a first recess sized and dimensioned to receive a first end of the flexible member. The base plate may have a second recess sized and dimensioned to receive a second end of the flexible member.
- The flexible member may mechanically lock with the pivoting plate and base plate to prevent rotation with respect to the first end and second end of the flexible member, respectively.
- The flexible member may have a non-cylindrical cross-section.
- The pivot may further comprise a bolt about which the pivoting plate and base plate pivot.
- The flexible member maybe sufficiently flexible to allow the pivoting plate to rotate at least 15 degrees relative to the base plate.
- In the default position, the pivoting plate may be at a center position relative to the base plate.
- The flexible member may comprise a bushing, and/or may comprise a polymer.
- The base plate comprises a first mounting surface for attaching the skateboard and a first pivoting surface that is coupled with the pivot, and the first mounting surface and first pivoting surface forms a first obtuse angle; the pivoting plate comprises a second mounting surface for attaching the truck and a second pivoting surface that is coupled with the pivot, and the second mounting surface and second pivoting surface forms a second obtuse angle that is less than the first obtuse angle.
- The second mounting surface may extend downward between 5 degree to 45 degrees, inclusive, from the bottom surface of the skateboard, when the truck carrying member is attached to a bottom surface of the skateboard.
- The truck carrying member may increase the truck's turn angle by 5 to 45 degrees, inclusive, and decreases the truck's lean angle by 5 to 45 degrees, inclusive, compared to when the truck is attached to the skateboard without the truck carrying adapter.
- The second pivoting surface of the pivoting plate may further comprises a notch; and the first pivoting surface of the base plate may further comprises a protrusion that is sized and dimensioned to move within the notch.
- The pivoting plate may have a range of motion of less than 45 degrees clockwise and counterclockwise away from the default position.
- In another embodiment of the invention, the truck carrying member comprises a pivoting plate rotatably coupled with a base plate at a pivot. The base plate is coupled with the skateboard deck, while the pivoting plate is coupled with a truck. The pivot comprises an elastic flexible member coupled with both the pivoting plate and the base plate. Due to the elasticity of the flexible member, the pivoting plate resists rotation with respect to base plate and automatically returns to a default position after rotation (e.g., center). In preferred embodiments of the invention, the resistance increases exponentially as the pivoting plate turns, which gives the rider more control of the skateboard.
- The flexible member can be of any suitable shape, but preferably the shape of a bushing with a non-cylindrical cross-section that functions as a mechanical lock. The non-cylindrical design does not allow the pivoting plate to rotate without causing a shape change in the flexible member. In preferred embodiments of the invention, the flexible member is sufficiently flexible to allow the pivoting plate to rotate at least 10 degrees from a center position relative to the base plate. The flexible member can be made with any suitable material that is sufficiently flexible and elastic. Contemplated materials include a man-made polymer (e.g., urethane, isoprene, resilient plastic), a natural polymer (e.g., rubber), or any mixture thereof (e.g., silicone rubber).
- In some embodiments of the current invention, the truck carrying member has a base plate and a pivoting plate, each having a mounting surface and a pivoting surface that form an obtuse angle. The obtuse angle in the pivoting plate is smaller than the obtuse angle in the base plate, so that the mounting surface of the pivoting plate extends downward from its pivoting surface when the truck carrying member is attached to a bottom surface of the skateboard. The downward mounting surface of the pivoting plate increases a truck's turn angle and decreases the truck's lean angle compared to when the truck is used without the truck carrying adapter, and makes the skateboard more agile by allowing the skateboard to turn more easily and rapidly. Contemplated downward angles are between 0 and 85 degrees, inclusive. In preferred embodiments, the downward angle is between 5 and 45 degrees, inclusive.
- In other embodiments of the current invention, the truck carrying member comprises a pivoting plate with a mounting surface for attaching a truck and at least two fasteners for attaching the pivoting plate to a skateboard or a base plate. The fasteners comprise flexible members that allow the pivoting plate to tilt. The flexible members can be of any shape, but preferably the shape of a cylindrical bushing. In preferred embodiments, the flexible members have sufficient flexibility to allow the pivoting plate to tilt at least 10 degrees and as much as 80 degrees, around a longitudinal axis of the skateboard. The flexible members can also absorb shock (e.g., due to sudden landing) and dampen vibration from the ground (e.g., due to uneven surface) and thus provides a more smooth and comfortable riding experience.
- From a methods perspective, the inventive subject matter comprises the steps of: (i) removing a conventional truck from a skateboard deck, (ii) attaching the conventional truck to a pivoting plate of a truck carrying member (e.g., front or rear adapter), and (iii) coupling the truck carrying member to the skateboard. It is further contemplated that in some embodiments steps (ii) and (iii) could be reversed.
- Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components. The drawing figures are embodiments (i.e., examples) described from the observer's perspective and may not be drawn to scale.
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Figure 1 is a front perspective view of a conventional skateboard and a partially exploded view of the front truck and wheel. -
Figure 2 is a perspective view of a conventional truck. -
Figure 3 is a perspective view of an embodiment of the invention, of a skateboard having a front truck carrying member according to the invention, and a rear truck carrying member which is not part of the invention. -
Figure 4 is a side view of the skateboard ofFig. 3 . -
Figure 5 is a side view of the skateboard ofFig. 3 , with an elongated pivoting plate in the front truck carrying member. -
Figure 6a is a side view of the front truck carrying member ofFig 3 . -
Figure 6b is a front perspective view of the front truck carrying member ofFig 3 . -
Figure 7 is an exploded view of another embodiment of the invention showing a truck carrying member. -
Figure 8 is an exploded view of the truck carrying member ofFig. 7 viewed from another perspective. -
Figure 9 is a bottom view of the truck carrying member ofFig. 7 . -
Figure 10 is a bottom rear perspective view of the truck carrying member ofFig. 7 . -
Figure 11 is a bottom view of the rear truck carrying member ofFig. 3 . -
Figure 12 is a side view of the rear truck carrying member ofFig. 3 . -
Figure 13 is a rear view of the rear truck carrying member ofFig. 3 . -
Figure 14 is an exploded view of the rear truck carrying member ofFig. 3 . -
Figure 15a is a bottom view of the pivoting plate of the rear truck carrying member ofFig. 3 . -
Figure 15b is top view of a modified embodiment of the invention showing a pivoting plate in the rear truck carrying member. -
Figure 16 is a rear view of the rear truck carrying member ofFig. 3 , shown in a turning configuration. -
Figure 17 is a side view of the rear truck carrying member ofFig. 3 , shown in a turning configuration. -
Figure 18 is a bottom perspective view of the skateboard ofFig. 3 having a front truck carrying member and a rear truck carrying member shown in a turning configuration. -
Figure 19 is a front perspective view of another embodiment of the invention showing a skateboard having a front truck carrying member, shown in a turning configuration. -
Figure 20 is a front perspective view of the skateboard ofFigure 18 , with the front and rear trucks shown in a turning configuration. -
Figure 21 is a top right perspective of the skateboard ofFigure 18 , with the front and rear trucks shown in a turning configuration. -
Figure 22a is a front bottom right perspective view of an embodiment of the invention showing a skateboard fully assembled. -
Figure 22b is a bottom left perspective view of the skateboard inFig.22a with an embodiment of front and back truck carrying members. -
Figure 22c is a right side view of the skateboard inFig.22b . -
Figure 23a is a right side view of an embodiment of the invention showing the front truck carrying member inFig 22a . -
Figure 23b is a bottom left side perspective view of the front truck carrying member inFig.23a -
Figure 23c is a bottom view of the front truck carrying member inFig.23a . -
Figure 23d is a top view of the front truck carrying member inFig.23a . -
Figure 23e is an exploded right side view of the front truck carrying member inFig.23a . -
Figure 23f is an exploded right side perspective view of the front truck carrying member inFig.23a . -
Figure 24a is a perspective bottom left side view of an embodiment of the invention showing the pivoting plate of the front truck carrying member inFig.23a . -
Figure 24b is a bottom view of an embodiment of the invention showing the pivoting plate of the front truck carrying member inFig. 24a . -
Figure 24c is a front view of an embodiment of the invention showing the pivoting plate of the front truck carrying member inFig. 24a . -
Figure 24d is a front view of an embodiment of the invention showing the pivoting plate of the front truck carrying member inFig. 24a .. -
Figure 24e is a rear view of an embodiment of the invention showing the pivoting plate of the front truck carrying member inFig. 24a . -
Figure 24f is a right side view of an embodiment of the invention showing the pivoting plate of the front truck carrying member inFig. 24a . -
Figure 25a is a bottom left side perspective view of an embodiment of the invention showing the base plate of the front truck carrying member inFig. 22a . -
Figure 25b is a bottom view of an embodiment of the invention showing the base plate of the front truck carrying member inFig. 25a . -
Figure 25c is a top view of an embodiment of the invention showing the base plate of the front truck carrying member inFig. 25a . -
Figure 25d is a front view of an embodiment of the invention showing the base plate of the front truck carrying member inFig. 25a . -
Figure 25e is a rear view of an embodiment of the invention showing the base plate of the front truck carrying member inFig. 25a . -
Figure 25f is a right side view of an embodiment of the invention showing the base plate of the front truck carrying member inFig. 25a . -
Figure 26a is a bottom rear left side view of an embodiment, which is not part of the invention, of a rear truck carrying member. -
Figure 26b is a bottom rear left view of the rear truck carrying member inFig. 26a . -
Figure 26c is a right side perspective view of the rear truck carrying member inFig. 26a . -
Figure 26d is a right side view of the rear truck carrying member inFig. 26a . -
Figure 26e is a right side view of the rear truck carrying member inFig. 26a attached to a skateboard, detached from a truck. -
Figure 26f is an exploded view of an embodiment, which is not part of the invention, of the rear truck carrying member inFig. 26a . - In some embodiments, the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term "about." Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
- As used in the description herein and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
- Unless the context dictates the contrary, all ranges set forth herein should be interpreted as being inclusive of their endpoints, and open-ended ranges should be interpreted to include only commercially practical values. Similarly, all lists of values should be considered as inclusive of intermediate values unless the context indicates the contrary.
- The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., "such as") provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
- Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion of deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all Markush groups used in the appended claims.
- The following discussion provides example embodiments of the inventive subject matter. Although each embodiment represents a single combination of inventive elements, the inventive subject matter is considered to include all possible combinations of the disclosed elements. Thus if one embodiment comprises elements A, B, and C, and a second embodiment comprises elements B and D, then the inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed.
- As used herein, and unless the context dictates otherwise, the term "coupled to" is intended to include both direct coupling (in which two elements that are coupled to each other contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms "coupled to" and "coupled with" are used synonymously.
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Figure 1 is a perspective view of aconventional skateboard 100. Theskateboard 100 has adeck 101, agrip surface 102, a fronttruck carrying member 110, afront truck 140, avibration absorbing pad 160, and arear truck 190. Each truck (140 and 190) has an axle (front truck axle not shown, rear truck axle 193) and two wheels (141,145, 191, and 195). Fasteningmechanisms including bolts 103 and screws, adhesive, etc., are necessary for the assembly of the skateboard. Although not shown inFig.1 , it is commonly known that thebolts 103 are arranged in a standard pattern across most skateboard products. Some embodiments of the current inventive subject matter conform to this standard pattern, so that the adaptors in the current inventive subject matter can be easily mounted to existing skateboards or skateboards made by other manufacturers. Thegrip surface 102 is covered by grip tapes that help a rider's feet stick to the board, especially during turning. The current inventive subject matter allows the board to tilt at a larger angle during turning than a board with a conventional truck, so a rider can rely less on the frictional force provided by the grip tape, and more on the support from the deck as the centripetal force required for turning. -
Figure 2 is a perspective view of aconventional skateboard truck 200. Aconventional truck 200 has apivot axis 250 and abushing 215 that allows thewheel axle 240 to turn and to tilt (253 and 254). The tiling and turning motion (253 and 254) are very limited in magnitude and scope, and can be slightly non-planar due to wobble (251 and 252) at thepivot 255. The tiling and turning motion (253 and 254) also allows a conventional truck to turn. Specifically, when a rider stands on the skateboard with his feet perpendicular to the longitudinal axis of the skateboard, the rider can turn the skateboard by shifting his weight from toe to heal, or vice versa. When the rider pushes on his toes, the toe side of the deck dips towards the ground while the heal side of the deck lifts. For example, during a left turn, the wheels on the left side of the skateboard [are tucked in closer to the deck than the wheels on the right side. In addition, during a left turn the wheels on the left move closer together and the wheels on the right move apart. -
Figure 3 is a perspective view of an embedment of askateboard 300 having adeck 301, a fronttruck carrying member 305, a reartruck carrying member 306, afront truck 340, and arear truck 390.Figure 4 is a side view of theskateboard 300 ofFig. 3 . The fronttruck carrying member 305 has abase plate 310, a pivotingplate 320, and a biasingmember 330. The reartruck carrying member 306 has abase plate 360, a pivotingplate 370, and bushings (e.g., 380). - Overall, a truck carrying member (305 and 306) can provide a conventional skateboard with advantageous technical effects, including increased maneuverability, without any modification to a
conventional skateboard deck 101 orconventional truck 200. The advantages include easier and shaper turns, shortened turning radius, smoother transition between turns, and increased tilting potential ofdeck 301. These technical improvements enable the rider to make shaper turns and experience an enhanced riding sensation. Moreover, a truck carrying member (305 and 306) allows the rider to generate speed without pumping (i.e., pushing off of the ground with one's foot), for example, by performing an "S" turn. - As used herein, a truck carrying member (305 or 306) is an adaptor that connects a
skateboard deck 301 to a truck (340 or 390). When used on the front end of askateboard 301, a truck carrying member (305) is also referred to as a "front adapter." When used on the back end of askateboard 301, atruck carrying member 306 is also referred to as a "rear adapter." However, it is contemplated the truck carrying members (305 or 306) can be used either on thefront truck 340 or on theback truck 390 of a skateboard. For example, arear adaptor 306 can be installed on the front end of a skateboard, and afront adapter 305 can be used on the back end of a skateboard. It is further contemplated thatrear adaptors 306 andfront adapters 305 can be used in any combination on a skateboard. For example, a skateboard can have arear adaptor 306 mounted to both front and rear trucks (340 and 390) simultaneously, which best serves skateboarding during high speed, sliding, and hard cornering. - The truck carrying members (305 or 306) can be of any suitable construction and made of any suitable material, including man-made material (e.g., metal, composite, or plastic), a natural material (e.g., wood or mineral), or any combination thereof. In preferred embodiments, the truck carrying members are made of aluminum.
- As used herein, a base plate (310 and 360) is a component of a truck carrying member (305 or 306) that is connected to the
skateboard deck 301. A pivoting plate (320 and 370) is a component of a truck carrying member (310 and 360) that rotates or tilts with respect to askateboard deck 301. In some embodiments, a pivotingplate 320 is coupled to abase plate 310 and can rotate with respect to thebase plate 310. In other embodiments, a pivotingplate 370 can tilt along the longitudinal axis of theskateboard deck 301. - The base plate (310 or 360) can be attached to a
skateboard 101 and the pivoting plate (320 or 370) can be attached to a truck (340 or 390) in any suitable manner, including using fasteners. Contemplated fasteners include any material or device that can fix a truck carrying member to a deck or a truck, including chemicals (e.g., adhesives, glues, etc.), mechanical connectors (e.g., bolts and screws, male-female connections, quick-release fasteners, etc.), magnets, or any combination thereof. - The front
truck carrying member 305 can increase a conventional skateboard's maneuverability by decreasing the turning circle (i.e., turning radius) of the skateboard, which makes the skateboard more agile. Aconventional skateboard 100 has afront truck 140 and arear truck 190 that follow the same arc during turning. However, the rotation of the pivotingplate 320 allows the front truck 340 (which would otherwise remain stationary with respect to the skateboard deck 301) to sway side-to-side. As a result, the pivotingplate 320 allows the front wheels (345 and 346) to turn in a wider arc than the rear wheels (395 and 396). Moreover, the rotation of the pivotingplate 320 allows theskateboard deck 301 to tilt more than a skateboard on conventional trucks (e.g., 200). The tiling angle of thedeck 301 is critical to hold the rider's feet to the skateboard as they travel through the arc of a turn. As thedeck 301 tilts more, it makes it easier for the rider to make a tighter turn because it can advantageously provide more centripetal force. - It is also contemplated that the pivoting plates (320 and 370) can be used to elongate or shorten the wheelbase (i.e., the distance between the front and rear axles of a skateboard). The wheelbase of a board can also change the turning circle of a skateboard. A longer wheelbase increases the turning circle, and a shorter wheelbase decreases the turning circle and makes the board more agile. It is further contemplated a truck (340 or 390) can be repositioned in front of or behind the conventional location of the truck. For example, in
Figure 5 , the pivotingplate 320L of thefront adaptor 305 is longer than the pivotingplate 320 inFigure 4 . As a result, thefront truck 340 is located closer to therear truck 390, so the wheelbase is decreased. -
Figure 6a is a side view of the fronttruck carrying member 305 ofFig 3 .Figure 6b is a front perspective view of the fronttruck carrying member 305 ofFig 3 . A preferred embodiment of the fronttruck carrying member 305 comprises abase plate 310 and apivoting plate 320 that are rotatably coupled at apivot 315. The fronttruck carrying member 305 also has a biasingmember 330 that resists movement of the pivotingplate 320 and biases the pivotingplate 320 in a default, and preferably, centered position relative to thebase plate 310. -
Figure 7 is an exploded view of another embodiment of atruck carrying member 405 comprising abase plate 410, a pivotingplate 420, a pivot coupling mechanism 440, and a biasingmember 430 comprising abushing 435.Figure 8 is an exploded view of the fronttruck carrying member 405 ofFig. 7 viewed from another perspective.Figure 9 is a bottom view of the fronttruck carrying member 405 ofFig. 7 .Figure 10 is a bottom rear view of the fronttruck carrying member 405 ofFig. 7 . In this embodiment, thepivot coupling mechanism 415 comprises abolt 416 that couples thebase plate 410 to the pivotingplate 420. - The performance of a skateboard equipped with a
front adaptor 305 would be limited if therear truck 390 is equipped with a conventionaltruck carrying member 200 having limited pivoting capabilities. Therear adapter 306 enhances the performance of a skateboard as a whole by allowing the rear end of the skateboard to tilt. In preferred embodiments, therear adaptor 306 allows the back end of the skateboard to tilt at least 10 degrees. In especially preferred embodiments, therear adaptor 306 allows the back end of the skateboard to tilt at least 45 degrees. -
Figure 11 is a bottom view of the reartruck carrying member 306 ofFig. 3 .Figure 12 is a side view of the reartruck carrying member 306 ofFig. 3 .Figure 13 is a rear view of the reartruck carrying member 306 ofFig. 3 .Figure 14 is an exploded view of the reartruck carrying member 306 ofFig. 3 . The reartruck carrying member 306 comprises abase plate 360 and apivoting plate 370 that are coupled together via two axes of rotation (351 and 352). It is contemplated that flexible members (381-384) can be placed above, below, or between thebase plate 360 and the pivotingplate 370. In preferred embodiments, flexible members 381-383 are placed between thebase plate 360 and the pivotingplate 370, and below the pivotingplate 370. The elasticity of the flexible members (381-384) and the elongated holes (371 and 372) on the pivoting plate 370 (seeFigure 15a ) allow thepivoting plate 370 to tilt (rock and roll) with respect to the base plate 360 (seeFigure 16 ). Moreover, the flexible members (381-384) can absorb shock (e.g., due to sudden landing) and dampen the vibration from the ground (e.g., due to uneven surface) and thus provides a more smooth and comfortable riding experience. - The
base plate 360 of the reartruck carrying member 306 can be coupled with theskateboard 301 using fasteners, preferably holes and screws. The pivotingplate 370 can be coupled with aconventional truck 390 using similar fasteners. It is contemplated that the holes (373-376) on the pivotingplate 370, can be repositioned to adjust the location of therear truck 390 relative to its conventional position (at or near the holes on the skateboard deck 301). For example, the pivotingplate 470 inFigure 15b has one set of four apertures (471-474) for attaching to atruck 390. The pivotingplate 470 can be modified to have another set of four apertures (475-478) for attaching to atruck 390. Since the apertures (475-478) allow thetruck 390 to be positioned more to the rear end of theskateboard deck 301 than apertures (471-474), thetruck 390 can be located further away from thefront truck 340 and the wheelbase can be increased. - The rear
truck carrying member 306 allowsdeck 301 to tilt along the longitudinal axis of the board more than a deck mounted to a traditional truck would tilt without the reartruck carrying member 306. In preferred embodiments, the pivotingplate 370 can tilt at least 10 degrees, inclusive, on either side. In especially preferred embodiments, the pivotingplate 370 can tilt at least 45 degrees, inclusive, on either side. -
Figure 18 is a perspective view of theskateboard 300 inFig. 3 , shown in a turning configuration (to the left). In this left turn configuration, the leftfront wheel 345 tucks inward and rearward, and the leftrear wheel 395 tucks up closer to thedeck 301. If the skateboard were to be turning right, then the frontright wheel 346 would tuck inward and rearward. The rearright wheel 396 would tuck up closer to the right side of thedeck 301. The fronttruck carrying member 305 allows the front wheels (345 and 346) to tuck inward and rearward even more than those in aconventional truck 200. - The rear
truck carrying member 306 allows the rear wheels (395 and 396) to tuck up closer to theboard 301 than those in anormal truck 200. As the front wheels (345 and 346) are tucked in harder, thedeck 301 is at a steeper angle, which allows thedeck 301 to face the point around which the rider is turning. The steeper angle also serves to hold the rider's feet to the board and to provide more centripetal force required for turning. The feeling of adeck 301 cradling a rider's feet provides a comfortable sensation and allows the rider to corner harder and to carry more speed through a turn, without the outside wheels lifting off of the ground or loosing grip due to centrifugal force. - The front
truck carrying member 305 allows more speed to be carried through turns while reducing the turn of the rear wheels (395 and 396). Thefront adapter 305 allows the front wheels (345 and 346) to point more in the direction of turning thus making the turning circle tighter. The reartruck carrying member 306 allows thedeck 301 to tilt while allowing the outside wheel to maintain contact with the ground during hard cornering and provide more grip from the outside wheel. - It is appreciated that a skateboard having both front and rear adapters (305 and 306) allows for the fastest and/or tightest and most controlled turns. The adapters (305 and 306) work together to allow the front of the board to rapidly change directions, and the
rear adaptor 306 allows the user to pivot off of the rear wheels (395, 396) to change the direction of the skateboard, while allowing hard sharp cornering where both outside wheels contact the ground to provide grip, unlike a conventional truck where the outside wheels may lift off the ground during a sharp turn. Both front and rear adapters (305 and 306) help distribute force to the wheels on the outside of the turn so that more speed can be carried through the turn, whereas force is more distributed on the inside wheels in conventional trucks (e.g., 200). -
Figure 19 is a perspective view of a skateboard having afront adaptor 505 on the front without a rear adaptor on the rear. In this embodiment, therear truck 590 is equipped with a riser 560 (e.g., spacer) between theskateboard deck 501 and thetruck 590.Figure 20 is a perspective of the skateboard ofFigure 19 , with thefront truck 540 and therear truck 590 shown in a turning configuration.Figure 21 is a perspective view of a skateboard inFig. 20 . -
Figure 22a is a perspective view of an embodiment of askateboard 600 having adeck 601, a fronttruck carrying member 605, afront truck 640, a reartruck carrying member 606, and arear truck 690. The fronttruck carrying member 605 couples thefront truck 640 to thedeck 601, and the backtruck carrying member 606 couples therear truck 690 to thedeck 601.Figure 22b is a perspective view of an embodiment of the front and back truck carrying members (605 and 606) attached to askateboard surface 601, without trucks.Figure 22c is a side view of an embodiment of front and back truck carrying members (605 and 606) attached to askateboard 601, without trucks. -
Figure 23 (a-f) shows a preferred embodiment of a fronttruck carrying member 605 having abase plate 610 and apivoting plate 620. The pivotingplate 620 has one or more fasteners for coupling with atruck 640, while thebase plate 610 has one or more fasteners for coupling with theskateboard deck 601.Figure 23a is a right side view,Figure 23b is a bottom left side perspective view,Figure 23c is a bottom view,Figure 23d is a top view,Figure 23e is an exploded right side view, andFigure 23f is an exploded right side perspective view, of an embodiment of the fronttruck carrying member 605. - The
base plate 610 and pivotingplate 620 are coupled at apivot 630 such that the pivotingplate 620 can turn with respect to thebase plate 610. Thepivot 630 has aflexible member 635 coupled with the pivotingplate 620 andbase plate 610. The pivotingplate 620 has a recess sized and dimensioned to receive a first end of theflexible member 635. Thebase plate 610 also has a recess sized and dimensioned to receive an end of theflexible member 635. In preferred embodiments, the pivot further comprises abolt 631 about which thebase plate 610 and pivotingplate 620 pivot. - The
base plate 610 has a mountingsurface 611 for attaching askateboard deck 601 and a pivotingsurface 612 for coupling to the pivotingplate 620. The mountingsurface 611 and pivotingsurface 612 of thebase plate 610 form an obtuse angle. The pivotingplate 620 has a mountingsurface 621 for attaching atruck 640 and a pivotingsurface 622 for coupling to thebase plate 610. The mountingsurface 621 and pivotingsurface 622 of the pivotingplate 620 form an obtuse angle. The obtuse angle of thebase plate 610 is larger than the obtuse angle of the pivotingplate 620, such that the mountingsurface 621 of the pivoting plate 720 extends downward from the pivotingsurface 622 when thetruck carrying member 605 is attached to a bottom surface of theskateboard 601. Contemplated downward angles are between 0 and 85 degrees, inclusive. In preferred embodiments, the downward angle is between 5 and 45 degrees, inclusive. In especially preferred embodiments, the pivotingplate 620 has a downward angle between 5 and 20 degrees relative to thebase plate 610. - The
pivot axis 250 is a trade-off between turn angle and lean angle. As used herein, "turn angle" refers to the degree of rotation of the wheel axle within a plane parallel to the skateboard. A "lean angle" refers to the degree of tilt of the board relative the wheel axle. Since a traditional skateboard truck'spivot axis 250 cannot be modified from its manufactured configuration, the downward angle between the pivotingplate 620 and thebase plate 610 can advantageously and effectively modify the position of the conventional truck's pivot axis to thereby increase the skateboard's turn angle and decrease the lean angle. For example, if the pivotingplate 620 has 5 degree downward angle relative to thebase plate 610, the pivot axis would be adjusted by 5 degrees, so the turn of the truck's pivot axis would be increased and its lean is decreased proportionally. - The
flexible member 635 biases the pivotingplate 620 to a default position relative to thebase plate 610. The default position is where the pivotingplate 620 is at a center position relative to thebase plate 610. Theflexible member 635 mechanically locks the pivotingplate 620 to thebase plate 610 to prevent rotation to a certain extent. To achieve this mechanical lock, contemplated flexible members have a non-cylindrical cross-section, including triangle, square, pentagonal, or an irregular shape, such that the pivotingplate 620 cannot rotate relative to thebase plate 610 without changing the shape of theflexible member 635. However, if the torque is sufficient large, theflexible member 635 changes its shape. The change in the shape of theflexible member 635 in turn creates tension in theflexible member 635. The tension is released whenflexible member 635 returns to its original shape. As such, theflexible member 635 has a tendency to return to its normal shape due to its elastic nature. - Contemplated
flexible members 635 can be made with any suitable material, including man-made polymer (e.g., urethane, isoprene, resilient plastic), a natural polymer (e.g., rubber), or a mixture of man-made and natural polymers (e.g., silicone rubber). In preferred embodiments, theflexible member 635 is sufficiently flexible to allow thepivoting plate 620 to rotate at least 15 degrees and as much as 90 degrees relative to thebase plate 610. In especially preferred embodiments, theflexible member 635 comprises one or more cylindrical bushings which can be securely fastened to the pivotingplate 620 andbase plate 610. It is contemplated that theflexible members 635 made of an elastic material (e.g., urethane) can provide resistance that is gentle and soft, which translates to a smoother transition during turning. It is further contemplated that the resistance can increase exponentially as the angle of the pivot increases, which gives the rider more control of the skateboard during turning and transitioning. In some embodiments, it is contemplated that the flexible member is sufficiently rigid to limit the range of motion of the pivoting place to within 45 degrees. - In preferred embodiments, the
base plate 610 further comprises aprotrusion 615 that is sized and dimensioned to move within thenotch 625 in the pivotingplate 620. All degrees of motion of the pivotingplate 620 are contemplated. In preferred embodiments, due to the limit imposed bynotch 625, the pivotingplate 620 has a range of motion of less than or equal to 45 degrees clockwise and counterclockwise, relative to thebase plate 610. In other embodiments, the pivotingplate 620 has a range of motion of less than or equal to 30 degrees clockwise and counterclockwise, due to the limit imposed bynotch 625. - It is contemplated that the
pivot 630 provides a smooth transition between one position and another when pivoting, without any catching (i.e., abrupt disruption) or friction that likely to exist in dual pivot trucks especially with springs. As a result, the rider experiences a smooth sensation as he shifts weight between toes and heals, as the board rolls over from side to side, as if resting on a cylinder. -
Figure 24 (a-f) shows a preferred embodiment apivoting plate 620 of a fronttruck carrying member 605. The pivotingplate 620 further comprises anotch 625.Figure 24a is a perspective bottom left side view,Figure 24b is a bottom view,Figure 24c is a front view,Figure 24d is a front view,Figure 24e is a rear view, andFigure 24f is a right side view, of an embodiment of the pivotingplate 620. -
Figure 25 (a-f) shows a preferred embodiment abase plate 610 of a fronttruck carrying member 605. The pivotingsurface 612 of thebase plate 610 further comprises aprotrusion 615.Figure 25a is a bottom left side perspective view,Figure 25b is a bottom view,Figure 25c is a top view,Figure 25d is a front view,Figure 25e is a rear view, andFigure 25f is a right side view of an embodiment of thebase plate 610. -
Figure 26 shows another embodiment of a reartruck carrying member 706 that couples atruck 790 to askateboard deck 701, comprising apivoting plate 760, without a base plate.Figure 26a is a bottom rear left side view of an embodiment of the reartruck carrying member 706.Figure 26b is a bottom rear left view of an embodiment of the reartruck carrying member 706 in a tilting position.Figure 26c is a right side perspective view of an embodiment of the reartruck carrying member 706 attached to askateboard 701.Figure 26d is a right side view of an embodiment of the reartruck carrying member 706 attached to atruck 790 and askateboard 701.Figure 26e is a right side view of an embodiment of the reartruck carrying member 706 attached to askateboard 701, detached from atruck 790.Figure 26f is an exploded view of an embodiment of the reartruck carrying member 706. - The pivoting
plate 760 has a mountingsurface 761 for attaching to atruck 790. The pivotingplate 760 can be attached to askateboard deck 701 using one or more fasteners (702 and 703). In preferred embodiments, the fasteners comprise one or more flexible members 781-784 that allow thepivoting plate 760 to tilt. In especially preferred embodiments, the flexible members 781-784 have sufficient flexibility to allow thepivoting plate 760 to tilt at least 45 degrees. Contemplated flexible members 781-784 include cylindrical bushings. - Thus, specific devices and methods of skateboard truck carrying members have been disclosed. It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the scope of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C .... and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.
Claims (14)
- A truck carrying member (605) for coupling a truck (200) to a skateboard (100), the truck (200) comprising a wheel axle (240), comprising:a base plate (610) comprising a first mounting surface (611) for coupling with the skateboard (100) and a first pivoting surface (612), wherein the first mounting surface (611) and the first pivoting surface (612) form a first obtuse angle;a pivoting plate (620) comprising a second mounting surface (621) for coupling with the truck (200) and a second pivoting surface (622), wherein the second mounting surface (621) and second pivoting surface (622) form a second obtuse angle;wherein the first pivoting surface (612) and the second pivoting surface (622) are rotatably coupled at a pivot (630) comprising a flexible member (635) that biases the pivoting plate (620) from an off-center position to a center position relative to a longitudinal axis of the base plate (610);characterised in that the second obtuse angle is less than the first obtuse angle such that the second mounting surface (621) extends downward from the skateboard (100) when the truck carrying member (605) is attached to a bottom surface of the skateboard (100).
- The truck carrying member (605) of claim 1, wherein the pivoting plate (620) has a first recess sized and dimensioned to receive a first end of the flexible member (635).
- The truck carrying member (605) of claim 1 or claim 2, wherein the base plate (610) has a second recess sized and dimensioned to receive a second end of the flexible member (635).
- The truck carrying member (605) of any preceding claim, wherein the flexible member (635) mechanically locks with the pivoting plate (620) and base plate (610) to prevent rotation with respect to the first end and second end of the flexible member (635), respectively.
- The truck carrying member (605) of any preceding claim, wherein the flexible member (635) has a non-cylindrical cross-section.
- The truck carrying member (605) of any preceding claim, wherein the pivot (630) further comprises a bolt (631) about which the pivoting plate (620) and base plate pivot (610).
- The truck carrying member (605) of any preceding claim, wherein the flexible member (635) is sufficiently flexible to allow the pivoting plate (620) to rotate at least 15 degrees relative to the base plate (610).
- The truck carrying member (605) of any preceding claim, wherein, in the default position, the pivoting plate (620) is at a center position relative to the base plate (610).
- The truck carrying member (605) of any preceding claim, wherein the flexible member (635) comprises a bushing.
- The truck carrying member of any preceding claim, wherein the flexible member comprises a polymer.
- The truck carrying member (605) of claim 1, wherein the second mounting surface (621) extends downward between 5 degree to 45 degrees, inclusive, from the bottom surface of the skateboard (100), when the truck carrying member (605) is attached to a bottom surface of the skateboard (100).
- The truck carrying member (605) of any preceding claim, wherein the truck carrying member (605) increases the truck's (200) turn angle by 5 to 45 degrees, inclusive, and decreases the truck's (200) lean angle by 5 to 45 degrees, inclusive, compared to when the truck (200) is attached to the skateboard (100) without the truck carrying adapter (605).
- The truck carrying member (605) of claim 1 or claim 11, wherein:the second pivoting surface (622) of the pivoting plate (620) further comprises a notch (625); andthe first pivoting surface (612) of the base plate (610) further comprises a protrusion (615) that is sized and dimensioned to move within the notch (625).
- The truck carrying member (605) of claim 13, wherein the pivoting plate (620) has a range of motion of less than 45 degrees clockwise and counterclockwise away from the default position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/047,951 US10864430B2 (en) | 2017-07-28 | 2018-07-27 | Truck carrying adapter for skateboard |
Publications (2)
Publication Number | Publication Date |
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EP3603759A1 EP3603759A1 (en) | 2020-02-05 |
EP3603759B1 true EP3603759B1 (en) | 2023-05-17 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19186382.8A Active EP3603759B1 (en) | 2018-07-27 | 2019-07-15 | Truck carrying adapter for skateboard |
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EP (1) | EP3603759B1 (en) |
AU (1) | AU2019204565B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4279155A1 (en) * | 2022-05-18 | 2023-11-22 | HLC SB Distribution, S.L. | Detachable assembly to give a direction to a skateboard |
DE102022116787B4 (en) * | 2022-07-05 | 2024-02-29 | Henning Wagner | Skateboard suspension and skateboard axle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2105290C (en) | 1991-03-01 | 2004-02-10 | Victor Manuel Pracas | Truck for a rideable vehicle, such as a skateboard |
AUPQ560400A0 (en) * | 2000-02-15 | 2000-03-09 | Lundbech, Tyson Dain | A skateboard |
US6793224B2 (en) | 2001-03-08 | 2004-09-21 | Carver Skateboards | Truck for skateboards |
US7159879B2 (en) * | 2004-11-02 | 2007-01-09 | Jeffrey Cole | Braking and steering system for a truck, wheeled platform, skateboard or vehicle |
US6979007B1 (en) * | 2004-08-03 | 2005-12-27 | Deux Nee Co., Ltd. | Truck structure of skateboard |
US20150097352A1 (en) * | 2013-10-04 | 2015-04-09 | Paul Ivazes | Suspension system for a skateboard or other rider platform |
ES2546702B5 (en) * | 2015-06-15 | 2022-01-26 | Drysurf S L | detachable skateboard set |
-
2019
- 2019-06-27 AU AU2019204565A patent/AU2019204565B2/en active Active
- 2019-07-15 EP EP19186382.8A patent/EP3603759B1/en active Active
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AU2019204565B2 (en) | 2021-09-30 |
EP3603759A1 (en) | 2020-02-05 |
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