WO2011151663A1

WO2011151663A1 - Skateborad with spring support

Info

Publication number: WO2011151663A1
Application number: PCT/IB2010/001336
Authority: WO
Inventors: Károly CSEPI
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-02
Filing date: 2010-06-02
Publication date: 2011-12-08
Anticipated expiration: 2012-12-02

Abstract

The object of the invention is the skateboard with spring support, giving a possibility of backing of the help upon the execution of directing and maneuvering and of the saving of uninjured communication of the ankle-joint and knee of the user by means of the presence of the rubber brackets. The skateboard consists of deck, wheel holder (2), plastic supports, plates, rubber elements, conical support, screws. The skateboard has a nest with an arched recess and with an additional nest, holes, base plate (6), as well as a support saddle (7) and a groove with a support surface, which is formed in the saddle (7). In the arched recess of the support element (4), which is provided with the hole, between the groove and the additional nest there is placed a plastic sleeve (25). The conical support (26) of the holder (2) is fixed in the sleeve (25). The rubber brackets (5) with the screw (28) are placed on the plate (6) in such a manner, that the screws (28) are placed in the holes, and on their ends there is placed the screw nut (16). The brackets (5) are fixed on the screws of deck (18) by means of the screw nuts. The plastic holder (19), the plate (20) and the rubber element (21) are placed in such an order on the screw (27), which is led through the hole, which is on the support surface of the element (4), whereupon the rubber element (23) and the plate (24) are placed on the screw (27) after its leading through the arched support (22) of the holder (2), whereupon the screw nut (17) is fixed on the end of the screw (27).

Description

Skateboard with spring support

The subject of the invention is a skateboard with spring support making possible to ensure the due flexibility during the use of the skateboard, in case of jumps when landing on the ground, as well as during turns, respectively during other maneuvers it helps to direct and maneuver the skateboard with a springy, lateral shift, perpendicular to the longitudinal axis, and due to its spring support it saves the joint of the user's ankles and knees.

The skateboard is nowadays a very widely used sports device. However its use is very dangerous, not only because of the accidents when falling, but also because of the harmful effect on the joints. During the jumps and changing of direction with the skateboard great power effects are imposed first of all on the joints of the ankles and knees, among which primarily the lateral forces are harmful. The producers of sports goods launch various improvements to the market to subdue these effects.

In the state of the art the EP 1 080 751 patent description published on 07 March 2001 relates generally to an improved skateboard truck for skateboards. The preferred skateboard truck comprises a yoke mounted by a king bolt to a mounting base. The mounting base comprises a socket hub and a bracket. The yoke comprises a hanger and a pivot arm. The pivot arm rotates freely in a bearing unit supporting the pivot arm in the socket hub. The king bolt clamps the hanger with a first grommet and a second grommet. The first grommet is flexible, preferably made of urethane rubber, and comprises an edge circumference and a center circumference. The center circumference is narrower than the edge circumference. Preferably, the first and second grommets are fluorescent.

The US 4 195 857 patent description published on 01 April 1980 makes known a skateboard with an elongated platform having a tail section and a main body section coupled together by an angularly adjustable joint that holds the sections in a preselected angular relation and permits adjustment of the tail section to various angles relative to the plane of the body section. In one embodiment, the adjustable joint is an elongated plate having front and rear end sections secured to the body and tail sections, respectively, of the skateboard platform, and, extending between the front and rear sections, an intermediate section that is bendable to a preselected angle, but has sufficient strength and stiffness to resist bending under the normal forces exerted on the tail section during tilting of the skateboard. In an alternative embodiment, the adjustable joint is an elongated plate with front and rear sections, with the front section being secured to the body section of the platform and the rear section being covered with a pliable nonslip plastic or rubber material to form the tail section of the platform, so that the tail section itself can be curved as well as angularly adjusted relative to the body section. In another alternative embodiment, the angularly adjustable joint is a hinge with front and rear hinge elements secured to the body and tail sections, respectively, of the skateboard platform, and connected together by a pivot pin. The pin has a threaded end engageable with a nut for locking the tail section in its preselected angular position by placing the hinge elements in compressive engagement.

The US 4 645 223 patent description published on 24 February 1987 makes known an assembly including a skateboard, a plurality of spaced wheel axles and rotatably secured sets of wheels and elongated resilient suspension frames connected at their opposite ends through housings to the wheel axles and to the underside of the skateboard. The assembly has at least four different shock-absorbing systems. Thus, the frames themselves absorb shock, as do cylinders of resilient rubber or the like set in cups connected to the frames above the wheel axles and bearing against the underside of the board. The wheel axle housings also include resilient dampeners which adjustably restrict steering rotation of the wheel axles and additionally dampen shocks. The frame housing connected to the underside of the skateboard rotatably receives the bases of the frames and adjustably controls that rotation, while providing a shock absorbing function, through the use of resilient bushing around the frame bases. The bushings are adjustably compressible there against by adjustably tightening the frame housing against the underside of the skateboard. The assembly is simple, inexpensive, durable and efficient, imparting greatly improved riding and handling characteristics to the skateboard.

The drawbacks of the solutions described above are that they do not provide sufficient flexibility of the skateboard, and their formation is not suitable to promote easy turns with simple, small power force.

When working out the solution according to the invention we aimed to create a skateboard construction that can provide sufficient flexibility for the user during landing after jumps as well as during turns, respectively other maneuvers and it makes easier the directing of the skateboard and the maneuvering and at the same time protects the joints of the ankles and knees of the user.

When creating the solution according to the invention we realized, that in case between the skateboard deck and the wheel holder a support element of flexible fastening and flexible support is used for the supporting of the wheel holders of the skateboard consisting of a skateboard deck, wheel holder, wheels, plastic holders, plates, rubber elements, conic support, screws, then the set aim can be achieved.

The invention is a skateboard with spring support, consisting of a skateboard deck, wheel holder, wheels, plastic supports, plates, rubber elements, conic support, screws. The characteristic of the solution is, that it has a nest with arched recess, and a further nest, holes, base plate, as well as a supporting saddle, and a groove with support surface formed in the supporting saddle and in the arched recess of the support element provided with hole placed between the groove and the_, nest a plastic sleeve is placed, and the conic support of the wheel holder of the skateboard is fixed in the plastic sleeve in a form-closing way, and the rubber brackets provided with screw and screw nut are placed on the base plate in such a way, that the screws are placed in the holes, and screw nut is placed at their ends, and the rubber brackets are fixed to the screws of the skateboard deck with the help of screw nuts, and the plastic holder, the plate, and the rubber element are placed in this order on the screw led through the hole seated on the support surface of the support element, then the rubber element, and the plate are placed on the screw after having been led through the arched support of the wheel holder, then the screw nut is fixed at the end of the screw.

In one preferred embodiment of the solution according to the invention the material of the support element is metal, primarily aluminum, or plastic, preferably fiberglass- reinforced plastic.

In another preferred embodiment of the solution according to the invention the material of the rubber bracket is hard rubber of high load-bearing capacity.

In a further preferred embodiment of the solution according to the invention one length dimension LI of the support element is 6-8cm, preferably 7.2cm, the length L2 of the supporting saddle is 6- 10cm, preferably 8.4 cm, the width P is 6- 10mm, preferably 6.7mm, the height G is 6-8mm, preferably 7mm, the height H is 10- 15mm, preferably 13 mm, further width F is 10-20mm, preferably 15mm.

In a further preferred embodiment of the solution according to the invention the width of the rubber bracket is 15-30mm, preferably 24mm, the height M is 12-18mm, preferably 16mm.

In a further preferred embodiment of the solution according to the invention the material of the plastic sleeve is flexible, load-bearing, rigid plastic.

In a further preferred embodiment of the solution according to the invention the shape of the rubber bracket is cylindrical, or square prism-shape.

In a further preferred embodiment of the solution according to the invention the production of the rubber bracket of the skateboard takes place in such a way, that two pressed plates are preferably welded on each screw and screw nut each, then the rubber material is baked on the screw and screw nut provided with pressed plates.

In a further preferred embodiment of the solution according to the invention altogether two wheel holders assembled with support elements are fixed on the bottom of the skateboard deck.

In a further preferred embodiment of the solution according to the invention the support surface formed in the groove of the support element preferably has an angle of a= 15- 30°, in given case a=20° with the plane of the base plate of the support element. The solution according to the invention is furthermore set forth on basis of the attached figures:

The Fig 1 shows a possible preferable realization of the skateboard according to the invention.

The Fig 2 shows a possible realization of the support element of the skateboard according to the invention, in side view.

The Fig 3 shows the realization of the support element of the skateboard according to the invention as shown in the Fig 2, in bottom view.

The Fig 4 shows the realization of the support element of the skateboard according to the invention as shown in the Fig 2, in top view.

The Fig 5 shows the rubber bracket of the skateboard according to the invention, in section.

The Fig 6 shows the support element fixed to the wheel holder of the skateboard according to the invention before assembling on the skateboard deck, in front view. The Fig 7 shows the support element fixed to the wheel holder of the skateboard according to the invention before assembling on the skateboard deck, in top view.

The Fig 8 shows the joining of the wheel holder of the skateboard according to the invention with the skateboard deck, in side view.

The Fig 1 shows a possible preferable realization of the skateboard according to the invention. The skateboard 1 with the wheel holder 2 provided with wheels 3 and the skateboard deck 18 can be seen in the figure. The support elements 4 having a base plate 6 and supporting saddle 7 are fixed to the skateboard deck 18 through the screws mounted on it, the rubber brackets 5 with the help of screws 28 and screw nuts 16. It can be seen well in the figure, that the conic support 26 of the wheel holder 2 fits into the plastic sleeve 25 placed in the support element 4. It can be furthermore seen in the figure, that the plastic holder 19 with the plate 20 and rubber elements 21, 23 and plate 24 is fixed to the support element 4 with the help of the screw 27 and screw nut 17 through the arched support 22.

The Fig 2 shows a possible realization of the support element of the skateboard according to the invention, in side view. The base plate 6 and supporting saddle 7 of the support element 4 can be seen in the figure, as well as the groove 9 formed in the supporting saddle 7 with the support surface 10 of the groove 9. The nest 15 can be seen in the figure as well. The hole 12 is formed between the groove 9 and the nest 15, in the supporting saddle 7 partly in the base plate 6. The nest 13 is formed in the base plate 6, from which the arched recess 14 - formed partly in the base plate 6, partly in the supporting saddle 7 - starts. The holes 1 1 are also formed in the base plate 6.

The Fig 3 shows the realization of the support element of the skateboard according to the invention as shown in the Fig 2, in bottom view. The base plate 6 of the support element 4 can be seen, and the nests 13, 15 as well as the supporting saddle 7 in the figure. The hole 12 is formed starting from the nest 15. The arched recess 14 is formed in the nest 13, partly in the base plate 6, partly in the supporting saddle 7. The holes 1 1 are also formed in the base plate 6. The Fig 4 shows the realization of the support element of the skateboard according to the invention as shown in the Fig 2, in top view. The base plate 6 and the supporting saddle 7 of the support element 4 can be seen in the figure, as well as the groove 9 formed in the supporting saddle 7 with the support surface 10 of the groove 9. The hole 12 is formed in the groove 9. The holes 1 1 are also formed in the base plate 6.

The Fig 5 shows the rubber bracket of the skateboard according to the invention, in section. In the figure the rubber bracket 5 with dimensions K width and M height can be seen with the screw 28 provided with pressed plates 8 fixed into the lower part, and the screw nut 29 provided with pressed plates 8 in the upper part. It can be seen well in the figure, that the screw 28 and the screw nut 29 are placed in such a way, that they do not prevent the deflection of the rubber bracket 5 made of flexible material, ensuring this way, that the rubber bracket 5 can go through optional form changes resulting from forces from different directions. The dimensions of the screw 28 must be chosen so, that the Z length size projecting from the rubber bracket 5 going through the G thickness of the base plate 6 of the support element 4 ensures the screwing on of the screw nut 16.

The Fig 6 shows the support element fixed to the wheel holder of the skateboard according to the invention before assembling on the skateboard deck, in front view. The support element 4 fixed to the wheel holder 2 can be seen in the figure. The wheel holder 2 provided with wheels 3 as well as the rubber brackets 5 placed on the support element 4 can be seen in the figure. It can be seen well in the figure, that the rubber brackets 5 are placed on the base plate 6 of the support element 4 in such a way, that the screw 28 of the rubber bracket 5 is led through the holes 11 formed in the support element 4. The screw nuts 16 are placed on the screw 28 during the assembly of parts of the skateboard 1. The screw nuts 29 placed in the rubber brackets 5 can be seen as well in the figure. The screws built in the skateboard deck 18 are screwed into the screw nuts 29 during the assembly of the skateboard 1. The supporting saddle 7 of the support element 4 with the groove 9 formed in it can be seen as well.

The Fig 7 shows the support element fixed to the wheel holder of the skateboard according to the invention before assembling on the skateboard deck, in top view. The support element 4 fixed on the wheel holder 2 can be seen in the figure. The wheel holder 2 provided with wheels 3, as well as the rubber brackets 5 placed on the support element 4 can be seen in the figure. It can be well seen in the figure, that the rubber brackets 5 are placed on the base plate 6 of the support element 4. The supporting saddle 7 of the support element 4 with the groove 9 formed in it, as well as the screw 27 bearing on the support surface 10 in the groove 9 can be seen in the figure as well. The screw nuts 29 placed in the rubber brackets 5 can be seen in the figure as well. During the assembly of the skateboard 1 the screws built in the skateboard deck 18 are screwed in the screw nuts 29.

The Fig 8 shows the joining of the wheel holder of the skateboard according to the invention with the skateboard deck, in side view. The wheel 3 fixed on the wheel holder 2, as well as the conic support 26, and the arched support 22 of the wheel holder 2 can be seen in the figure. It can be seen well in the figure, that the rubber element 21, the plate 20, and the plastic holder 19 are joined through the arched support 22 with the help of the screw 27. The support element 4 with the base plate 6 and the supporting saddle 7 with the groove 9 formed in the supporting backbone 7 can be seen in the figure. The rubber brackets 5 are placed on the base plate 6 of the support element 4. It can be seen well in the figure, that the support element 4 is fixed to the skateboard deck 18 of the skateboard 1 through the screws 28 of the rubber brackets 5 placed on the base plate 6 of the support element 4 with the help of the screw nut 16, in such a way, that the screws fixed into the skateboard deck 18 are fixed into the screw nuts 29 formed in the rubber bracket 5.

In the figure the groove 9 formed in the supporting saddle 7 of the support element 4 and the screw 27 in the groove 9 can be seen as well.

In case of a preferable concrete realization of the solution according to the invention first the plastic sleeve 25 is placed into the arched recess 14 formed in the nest 13 of the support element 4. The conic support 26 of the wheel holder 2 is put into the plastic sleeve 25 in a form-closing way. Following this, the screw 27 is put into the hole 12 starting from the groove 9 formed in the supporting saddle 7 of the support element 4 in such a way, that the inner plane of the head of the screw 27 is seated on the support surface 10. Following this the screw 27 is led through the openings formed in the plastic holder 19, the plate 20 and the rubber element 21 , then through the arched support 22 of the wheel holder 2, then through the openings of the rubber element 23 and the plate 24, and the screw nut 17 is screwed on the part projecting over the plate 24. Following this the rubber brackets 5 are screwed on the screws protruding from the skateboard deck 18 with the help of the screw nuts 29, then the rubber brackets 5 are fitted to the base plate 6 of the support element 4 in such a way, that the screws 28 of the rubber brackets 5 are placed into the holes 11 formed in the base plate 6 overhanging the holes 1 1, and the screw nuts 16 are screwed on the overhanging screws 28. The above process has to be carried out in case of both wheel holder 2 of a skateboard 1.

In case of a preferable, concrete realization of the skateboard 1 according to the invention, when standing on the skateboard deck 18 or after a jump with the skateboard 1 resulting from the weight of the person stepping, almost falling on the skateboard deck 18 the rubber brackets 5 are compressed, agglomerated due to their flexibility between the skateboard deck 18 and the support element 4. The value of the compression can be maximum„S", where„S" distance is the distance between the upper plane of the supporting saddle 7 and the lower plane of the skateboard deck 18. Resulting from this flexibility the person using the skateboard 1 feels this impact-like effect in a much more pleasant way, and their legs and joints are saved.

In case of the skateboard I according to the invention the conic support 26 placed into the plastic sleeve 25 in a form-closing way makes it possible, that due to the small-rate flexibility of the plastic sleeve 25 the support element 4 on the conic support 26 and together with it the skateboard deck 18 itself move, tilt a little laterally, perpendicular to the length, (which is the direction of course as well). This way the user of the skateboard 1 can tilt the skateboard deck 18 from its horizontal position resulting from the force on the edges of the skateboard deck 18 to a slightly sloping position in such a way, that the support element 4 and together with it the skateboard deck 18 itself can be slightly tilted laterally on the conic support 26 in the above mentioned way, and also resulting from the force on the edges of the skateboard deck 18 the rubber brackets 5 placed this side are compressed, ensuring the lateral tilting of the skateboard deck 18. With this procedure the user can cause the tilting, that is its lateral movement, turn of the skateboard 1 in a simple way.

The rubber bracket 5 of the skateboard 1 according to the invention is of cylindrical or square prism-shaped. The production of the rubber bracket 5 of the skateboard 1 according to the invention takes place in such a way, that two of each of the pressed plates 8 are fixed on the screw 28 and screw nut 29 preferably by welding, then the rubber material is baked on the screw 28 and screw nut 29 provided with the pressed plates 8.

The dimension of the support element 4 is: LI length = 6-8cm, preferably 7.2cm L2 length = 6-10cm, preferably 8.4cm P width = 6-10mm, preferably 6.7mm G height = 6-8mm, preferably 7mm H height = 10-15mm, preferably 13mm F width = 10-20 mm, preferably 15mm.

The dimension of the rubber bracket 5 is: K width = 15-30mm, preferably 24mm M height = 12- 18mm, preferably 16mm. The material of the support element 4 is metal, primarily aluminum, or plastic, preferably fiberglass-reinforced plastic. The material of the rubber bracket 5 is rubber, the material of the plastic sleeve 25 is plastic. In case of a preferable formation the support surface 10 formed in the groove 9 of the support element 4 is preferably a= 15-30°, in given case a=20° with the plane of the base plate 6 of the support element 4. This in given case is the same as the angle of the bottom of the nest 13 and that of the base plane of the support element 4.

The advantage of the solution according to the invention is that the skateboard according to the invention ensures sufficient flexibility landing on the ground after jumps, and during turn, respectively other maneuvers, with the help of flexible movement perpendicular to the longitudinal axis it makes the direction, and the maneuvering movements of the skateboard easier and saves the ankle and knee joints of the rider to a great extent.

List of references:

1 - skateboard

2 - wheel holder

3 - wheel

4 - support element

5 - rubber bracket

6 - base plate

7 - supporting saddle

8 - pressed plate

9 - groove

10 - support surface

1 1 - hole

12 - hole

13 - nest

14 - arched recess

15 - nest

16 - screw nut

17 - screw nut

18 - skateboard deck

19 - plastic holder

20 - plate

21 - rubber element

22 - arched support

23 - rubber element

24 - plate

25 - plastic sleeve

26 - conic support

27 - screw

28 - screw

29 - screw nut

S - distance

K - width

M - height

H - height

G - height

LI - length

L2 - length

P - width

F - width

Z - length a - angle

Claims

CLAIMS:

1. Skateboard with spring support, consisting of a skateboard deck, wheel holder, wheels, plastic supports, plates, rubber elements, conic support, screws, characterized by that, it has a nest (13) with arched recess (14), and a further nest (15), holes (1 1), base plate (6), as well as a supporting saddle (7), and a groove (9) with support surface (10) formed in the supporting saddle (7) and in the arched recess (14) of the support element (4) provided with hole (12) placed between the groove (9) and the nest (15) a plastic sleeve (25) is placed, and the conic support (26) of the wheel holder (2) of the skateboard (1) is fixed in the plastic sleeve (25) in a form-closing way, and the rubber brackets (5) provided with screw (28) and screw nut (29) are placed on the base plate (6) in such a way, that the screws (28) are placed in the holes (1 1 ), and screw nut (16) is placed at their ends, and the rubber brackets (5) are fixed to the screws of the skateboard deck (18) with the help of screw nuts (29), and the plastic holder (19), the plate (20), and the rubber element (21) are placed in this order on the screw (27) led through the hole (12) seated on the support surface (10) of the support element (4), then the rubber element (23), and the plate (24) are placed on the screw (27) after having been led through the arched support (22) of the wheel holder (2), then the screw nut (17) is fixed at the end of the screw (27).

2. Skateboard according to claim 1, characterized by that, the material of the support element (4) is metal, primarily aluminum, or plastic, preferably fiberglass-reinforced plastic.

3. Skateboard according to claims 1 or 2, characterized by that, the material of the rubber bracket (5) is hard rubber of high load-bearing capacity.

4. Skateboard according to any of claims 1-3, characterized by that, one length dimension (LI) of the support element (4) is 6-8cm, preferably 7.2cm, the length (L2) of the supporting saddle (7) is 6-lOcm, preferably 8.4 cm, the width (P) is 6-10mm, preferably 6.7mm, the height (G) is 6-8mm, preferably 7mm, the height (H) is 10- 15mm, preferably 13mm, further width (F) is 10-20mm, preferably 15mm.

5. Skateboard according to any of claims 1-4, characterized by that, the width ( ) of the rubber bracket (5) is 15-30mm, preferably 24mm, the height ( ) is 12- 18mm, preferably 16mm.

6. Skateboard according to any of claims 1 -5, characterized by that, the material of the plastic sleeve (25) is flexible, load-bearing, rigid plastic.

7. Skateboard according to any of claims 1-6, characterized by that, the shape of the rubber bracket (5) is cylindrical, or square prism-shape.

8. Skateboard according to any of claims 1-7, characterized by that, the production of the rubber bracket (5) of the skateboard (1) takes place in such a way, that two pressed plates (8) are preferably welded on each screw (28) and screw nut (29) each, then the rubber material is baked on the screw (28) and screw nut (29) provided with pressed plates (8).

9. Skateboard according to any of claims 1-8, characterized by that, altogether two wheel holders (2) assembled with support elements (4) are fixed on the bottom of the skateboard deck (18).

10. Skateboard according to any of claims 1-9, characterized by that, the support surface (10) formed in the groove (9) of the support element (4) preferably has an angle of a= 15-30°, in given case a=20° with the plane of the base plate (6) of the support element (4).