Skateboard, extension for a skateboard, and system thereof

Abstract

A skateboard has one or two standing surface extensions. The extension or extensions are mounted on the skateboard and dismounted therefrom by means of a tongue-groove principle to equip a skateboard having a pintail with a kicktail at the front and at the rear or optionally only at the front/rear or at the front and the rear.

Claims

1. A skateboard comprising: a deck defining in part a standing surface of the skateboard for a user and having a front end and a rear end, the deck defining an x-direction and a y-direction, a z-direction being substantially perpendicular to the x-direction and the y-direction; a first axle disposed proximal to the front end; a second axle disposed proximal to the rear end; a standing surface extension for interchangeably extending the standing surface at the front end or the rear end; wherein the deck comprises a first fastening device at the front end and a substantially identical second fastening device at the rear end, each fastening device for attaching the standing surface extension to the front end or the rear end; wherein each fastening device comprises a first upright wall surface in the z-direction, a support surface extending in the x-direction and the y-direction for supporting a weight force of the user standing on the standing surface extension, and a first inclined surface extending from an edge of the support surface; wherein the standing surface extension comprises a second upright wall surface in the z-direction, an engaging surface extending in the x-direction and the y-direction for transferring a weight force of the user standing on the standing surface extension to the support surface, and a second inclined surface abutting the first inclined surface, the second inclined surface preventing the standing surface extension from moving upward in the z-direction relative to the deck.

2. The skateboard of claim 1, wherein the first upright wall and the second upright wall are gapped.

3. The skateboard of claim 1, wherein the support surface comprises a first distance in the y-direction from the first upright wall to the edge of the support surface; wherein the engaging surface comprises a second distance in the y-direction from an edge of the engaging surface to an intersection with the second inclined surface; wherein the first distance is greater than the second distance.

4. The skateboard of claim 1, wherein the front end and the rear end substantially mirror image shapes.

5. The skateboard of claim 1, wherein the standing surface extension is movable in the x-direction relative to the deck.

6. The skateboard of claim 1, wherein the second inclined surface is inclined relative to the z-direction and the y-direction.

7. A standing surface extension for extending a standing surface of a skateboard, the standing surface defining an x-direction and a y-direction, a z-direction being substantially perpendicular to the x-direction and the y-direction, the standing surface extension comprising: a receiving device for attaching the standing surface extension to a fastening device of the the skateboard, the receiving device comprising an upright wall surface in the z-direction, an engaging surface extending in the x-direction and the y-direction for transferring a weight force of the user standing on the standing surface extension to a support surface of the fastening device, and an inclined surface of the standing surface extension abutting an inclined surface of the fastening device; wherein the inclined surface of the standing surface extension is inclined relative to the z-direction and the y-direction to prevent the standing surface extension from moving upward in the z-direction relative to the standing surface.

8. The standing surface extension of claim 7, further comprising a locking element for locking the standing surface extension to the skateboard in the x-direction.

9. The standing surface extension of claim 7, wherein the receiving device comprises a form-fitting connection, the form-fitting connection comprising at least one surface for fixing the standing surface extension to the standing surface of the skateboard in at least the y-direction or the z-direction.

10. The standing surface extension of claim 7, wherein the standing surface extension is movable in the x-direction relative to the deck.

11. A skateboard system comprising: a skateboard comprising a deck defining in part a standing surface of the skateboard for a user and having a front end and a rear end, the deck defining an x-direction and a y-direction, a z-direction being substantially perpendicular to the x-direction and the y-direction; a first axle disposed proximal to the front end; a second axle disposed proximal to the rear end; a standing surface extension for interchangeably extending the standing surface at the front end or the rear end; wherein the deck comprises a first fastening device at the front end and a substantially identical second fastening device at the rear end, each fastening device for attaching the standing surface extension to the front end or the rear end; wherein each fastening device comprises a first upright wall surface in the z-direction, a support surface extending in the x-direction and the y-direction for supporting a weight force of the user standing on the standing surface extension, and a first inclined surface extending from an edge of the support surface; wherein the standing surface extension comprises a second upright wall surface in the z-direction, an engaging surface extending in the x-direction and the y-direction for transferring a weight force of the user standing on the standing surface extension to the support surface, and a second inclined surface abutting the first inclined surface, the second inclined surface preventing the standing surface extension from moving upward in the z-direction relative to the deck.

12. The system of claim 11, further comprising a locking element for locking the standing surface extension to the skateboard in x-direction.

13. The system of claim 12, further comprising a form-fitting connection or force-fitting connection; wherein the locking element locks the standing surface extension and the skateboard using the form-fitting connection or force-fitting connection.

14. The system of claim 12, further comprising a form-fitting connection or force-fitting connection; wherein the locking element is releasably held in a locked position by clamping, by the form-fitting connection, or by pretension at the locking position.

15. A skateboard system comprising: a skateboard comprising a deck defining in part a standing surface of the skateboard for a user and having a front end and a rear end, the deck defining an x-direction and a y-direction, a z-direction being substantially perpendicular to the x-direction and the y-direction; a first axle disposed proximal to the front end; a second axle disposed proximal to the rear end; a first standing surface extension for extending the standing surface at the front end and a second standing surface extending the standing surface at the rear end; wherein the deck comprises a first fastening device at the front end and a substantially identical second fastening device at the rear end, each fastening device for attaching a respective standing surface extension to the respective front end or the rear end; wherein each fastening device comprises a first inclined surface extending from an edge of the support surface; wherein each standing surface extension comprises a second inclined surface abutting the first inclined surface; wherein the second inclined surface is inclined relative to the z-direction and the y-direction preventing the standing surface extension from moving upward in the z-direction relative to the deck.

16. The system of claim 15, further comprising a locking element for locking the standing surface extension to the skateboard in x-direction.

17. The system of claim 15, wherein each fastening device further comprises a first upright wall surface in the z-direction, and a support surface extending in the x-direction and the y-direction for supporting a weight force of the user standing on the standing surface extension.

18. The system of claim 17, wherein each standing surface extension further comprises a second upright wall surface in the z-direction, an engaging surface extending in the x-direction and the y-direction for transferring a weight force of the user standing on the standing surface extension to the support surface.

Description

BRIEF DESCRIPTION OF THE INVENTION

(1) FIG. 1 shows a skateboard 2 with a non-mounted, but nevertheless illustrated standing surface extension 1 in an isometric view seen obliquely from above.

(2) FIG. 2 shows the illustration of FIG. 1 seen obliquely from below.

(3) FIG. 3 shows an isometric view of a skateboard 2 with two mounted standing surface extensions 1.

(4) FIG. 4 shows an isometric view of a skateboard 2 without standing surface extensions 1.

(5) FIG. 5 show a plan view of a skateboard 2 with two mounted standing surface extensions 1.

(6) FIG. 6 shows the section A-A of FIG. 5.

(7) FIG. 7 shows the skateboard 2 of FIG. 5 in side view.

DETAILED DESCRIPTION OF THE INVENTION

(8) In the following, the term skateboard is used throughout. However, the special embodiment of the skateboard, the longboard, is also explicitly included herein.

(9) FIG. 1, as well as the figures described below, shows a modified embodiment of the HYVE GridBoard. A front part of a skateboard 2 including a fastening device 28 which is tongue-shaped in plan view is shown. The skateboard has openings 23 which are provided for screwing the skateboard 2 and its axles (trucks), which are not shown, together. The axles of the skateboard 2 are not shown in any of the illustrations. The fastening device 28 of the skateboard 2 is provided for fastening a standing surface extension 1 by means of a receiving device 18. The receiving device 18 and the fastening device 28 are provided for a form-fitting engagement. The fastening geometry of the receiving device 18 and the fastening device 28 is shown in more detail in FIG. 6.

(10) FIG. 2 shows the isometric view of FIG. 1 seen obliquely from above. The illustrations shown in FIGS. 1 and 2 represent the front end 21 of the skateboard. It is formed in the shape of a tongue that tapers with increasing distance from the center of the board.

(11) FIG. 3 shows the skateboard 2 with two standing surface extensions 1 mounted thereon. At the rear end 22 and at the front end 21 of the skateboard 2, a standing surface extension 1 is attached. FIG. 4 shows the embodiment shown in FIG. 3, but with the standing surface extensions 1 removed.

(12) FIG. 5 shows the skateboard 2 with two standing surface extensions 1 mounted thereon in plan view. Furthermore, a coordinate system is shown, which defines the direction of travel of the skateboard 2 as the x direction. Herein, the board of the skateboard 2 board defines a plane parallel to a plane, in which the x and y directions are. Thus, the y direction is transverse to the x direction, as shown in FIG. 5. Furthermore, FIG. 5 illustrates the position of a section A-A, which passes through the skateboard 2 and one of the standing surface extensions 1, in a region of the receiving device 18 and the fastening device 28.

(13) FIG. 6 shows the embodiment illustrated in FIG. 5. The z axis points upwards in the vertical direction. Thus, the section A-A passes through a plane, which is parallel to a plane, in which the y and z direction are. Furthermore, the y axis is to define a horizontal axis. The section A-A shows the form-fitting engagement of the skateboard 2 and the standing surface extensions 1. In this exemplary embodiment, the skateboard 2 has a horizontal surface 282, and the standing surface extensions 1 have a horizontal surface 182. These two horizontal surfaces 182, 282 are provided for supporting the standing surface extension 1 on the skateboard 2. If the rider of the skateboard puts load on the standing surface extensions 1 while riding, i.e., puts the bulk of his weight thereon, the weight of the rider can be introduced from the standing surface extensions 1 into the skateboard 2 by means of the horizontal surfaces 182, 282. Hence, the horizontal surfaces 182, 282 prevent the standing surface extensions 1 from moving downward with respect to the skateboard 2. Furthermore, an inclined surface 283 is provided at the skateboard 2, and an inclined surface 183 is provided at the standing surface extension 1. The mutually abutting surfaces 183, 283 are provided to prevent the standing surface extensions 1 from moving upward with respect to the skateboard 2. In the illustration shown in FIG. 6, a movement of the standing surface extensions 1 to the right appears to be possible. However, it is to be noted that the section A-A extends only through a part of the standing surface extensions 1 and the skateboard 2, as shown in FIG. 5. If the section A-A were to extend over the entire width, the geometry shown in FIG. 6 would exist once more in mirrored form (to the left of the illustration currently shown in FIG. 6). Accordingly, the surfaces 183, 283 prevent a relative movement of standing surface extensions 1 and skateboard 2 to the left/right, i.e. in y direction. A vertical surface 281 of the skateboard 2 does not touch a vertical surface 181 of the standing surface extension 1 in this embodiment. By providing a small gap between the surfaces 181 and 281, a double fit is prevented. A relative movement of the standing surface extension 1 and the skateboard 2 in the direction of the image plane (x direction) is only possible in one direction due to the contour of the fastening device 28, which tapers outward in the x-direction, or the contour of the receiving device 18 of the standing surface extension 1, which engages form-fittingly with this contour. The relative movability of the standing surface extension 1 and the skate board 2 in this one direction (x direction) is used to mount the standing surface extensions 1 on the skateboard 2 and to remove them therefrom.

(14) In order to bring the skateboard 2 with the standing surface extension mounted thereon into a ready-to-ride state, the movability between the standing surface extension 1 and the skateboard 2 must be suppressed. For this purpose, a locking element (not shown) is provided, which penetrates a standing surface extension 1 and the skateboard 2 and is thus locked by means of a form-fitting connection.

(15) Advantageously, this locking element is provided either as part of the standing surface extension 1, or as part of the skateboard 2, or as a separately provided component.

(16) In a further embodiment not shown, the locking element is configured as a snap fit element. This snap fit element is attached to the standing surface extension 1 and hooks into the skateboard 2 in the assembled and thus to be locked position. In a further embodiment not shown, the snap fit element is attached to the skateboard 2 and hooks into the standing surface extension 1 in the assembled and thus to be locked position. The snap fit element of the embodiments just described preferably includes a spring element which urges the hook into the locked position.

(17) The idea of the invention is essentially based on providing a possibility of connection between the standing surface extension 1 and the skateboard 2 by means of the tongue-groove principle. For this, the exact geometry of the flanks of the fastening device 28 or the receiving device 18 can vary without deviating from the scope of the invention.

(18) FIG. 7 shows a skateboard 2 with standing surface extensions 1 mounted thereon in side view. In this illustration, the axles with wheels are also not shown. The standing surface extensions 2 on the right-hand side of the illustration are curved upwards (in z direction) in the direction of the x axis. As a result, the distance between the lower edge of the standing surface extension 1 to the bottom not illustrated increases, whereby a larger deflection angle and thus a larger jump height is possible when executing various skateboard tricks (such as ollie).