US20070257459A1 - Skateboard with direction-caster - Google Patents
Skateboard with direction-caster Download PDFInfo
- Publication number
- US20070257459A1 US20070257459A1 US11/689,827 US68982707A US2007257459A1 US 20070257459 A1 US20070257459 A1 US 20070257459A1 US 68982707 A US68982707 A US 68982707A US 2007257459 A1 US2007257459 A1 US 2007257459A1
- Authority
- US
- United States
- Prior art keywords
- skateboard
- board
- caster
- pipe
- rider
- 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.)
- Abandoned
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Classifications
-
- 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
- A63C17/0033—Roller skates; Skate-boards with a castor wheel, i.e. a swiveling follow-up wheel
-
- 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
-
- 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
-
- 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
- A63C17/016—Wheel arrangements with wheels arranged in one track
-
- 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
- A63C17/018—Ice skateboards
-
- 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
- A63C17/12—Roller skates; Skate-boards with driving mechanisms
-
- 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
- A63C2203/40—Runner or deck of boards articulated between both feet
Definitions
- the present invention relates to a skateboard and a connecting element configured so the rider can easily turn and accelerate.
- conventional skateboard comprises an oval plate ( 111 ) and two wheel-sets ( 113 , 123 ) which are mounted on the underside of the plate ( 111 ), each of the wheel-sets carries two wheels.
- the conventional skateboard can be accelerated by rider's stamping onto the ground and it can be steered to the right or left direction by the rider's leaning to one side or the other side of the plate ( 111 ).
- a conventional caster ( 130 ) comprises a wheel support ( 134 ), roller arm ( 135 ) and a roller ( 136 ).
- Such a conventional caster ( 130 ) is generally used as front wheel in a handcart because is easily changes its rolling direction by application of a minimal turning force by the user.
- the conventional skateboard cannot be tilted much for the right or left turn because the plate ( 111 ) touches the wheel of the wheel-set when the plate ( 111 ) is tilted more than a specific angle. With this reason, the conventional skateboard can be steered to a relatively small degree, so that it is not possible to change the direction of the skateboard for making a turn within a small turning radius.
- a skateboard which has a front board, a rear board and a connecting element which interconnects the two boards in a spaced relationship, the skateboard comprising:
- one or more than one direction-caster which is mounted on the underside of the plate of at least one of the front board and the rear board;
- the connecting element which includes an elastic member so that the connecting element can be elastically twisted or bent when it receives twisting force or bending force and it can be restored to its original shape when the force is removed.
- the front board may have one or more than one direction-caster and the rear board may have one or more than one fixed roller set.
- the connecting element may be a twist-pipe which has elastic material in it.
- the connecting element may comprise the twist-pipe and two elastic members which are provided parallel to the twist-pipe at both sides of the twist-pipe and are connected to the front board and the rear board at each of their both ends.
- a skating board which has a front board, a rear board and a connecting element which interconnects the two boards in a spaced relationship, wherein at least one of the front board and the rear board has one or more than one direction-caster skate blade which is mounted on the underside of the plate of the front board and the rear board, the connecting element includes an elastic member so that it can be elastically twisted or bent when it receives twisting force or bending force and it can be restored to its original shape when the force is removed.
- FIG. 1 is a perspective view illustrating the shape of a skateboard according to a first embodiment of the present invention
- FIG. 2 is an exploded side view of the direction-caster in FIG. 1 ;
- FIG. 3 a , 3 b , 3 c are plan views showing how to steer the skateboard in FIG. 1 ;
- FIG. 3 d is a plan view showing how to generate the driving force of the skateboard in FIG. 1 ;
- FIG. 4 a is a cross section view of the twist-pipe in FIG. 1 ;
- FIG. 4 b is a perspective view showing the installation of the plate spring in FIG. 4 a;
- FIG. 5 a is the outline of a skateboard according to a second embodiment of the present invention.
- FIG. 5 b is the outlines of a skateboard according to a third embodiment of the present invention.
- FIG. 6 is a perspective view of a skating board skateboard according to a fourth embodiment of the present invention.
- FIG. 7 a is a perspective view illustrating the shape of a conventional skateboard.
- FIG. 7 b is a side view of a conventional caster.
- the skateboard with direction-casters comprises two boards, which are the front board ( 10 ) and the rear board( 20 ) respectively, and a twist-pipe( 40 ) which interconnects the two boards( 10 , 20 ) in a spaced relationship.
- the board( 10 or 20 ) comprises a plate( 11 or 21 ), a direction-caster( 13 or 23 ) which is mounted on the underside of the plate( 11 or 21 ) and fastening devices( 12 ) which tightly fasten the board( 10 or 20 ) to the twist-pipe( 40 ).
- the direction-caster comprises a wheel support( 34 ) attached to the plate, a roller arm( 35 ) which is pivotably connected to the wheel support( 34 ) and a roller( 36 ) which is rotatably connected to the free-end parts of the roller arm( 35 ).
- the wheel support( 34 ) has the shape of a wedge, so that an acute angle is formed between the contact surface of the wheel support( 34 ) and the plate( 11 ) and the facing surface of the wheel support( 34 ) and the roller arm( 35 ).
- FIG. 3 d The mechanics for generating the driving force is shown in FIG. 3 d , where the rider makes twisting motion to the left direction with respect to the advancing direction.
- the front board( 10 ) is biased to +y direction and the rear board( 20 ) is biased to ⁇ y direction, so that the direction-casters( 13 , 23 ) make rolling angles( ⁇ , ⁇ ) with respect to the advancing direction proportional to the magnitude of the biasing forces received by the boards( 10 , 20 ).
- the twist-pipe( 40 ) comprises the front pipe( 41 ), the rear pipe( 50 ), the inner pipe( 52 ) which is fixedly field in the rear pipe( 50 ) by ball bearing( 51 ) so that it can rotate with respect to the rear pipe( 50 ) but cannot be separated from the rear pipe( 50 ), and the spring lock( 53 , 54 ) which is fixed in the inner pipe( 52 ) and connects the inner pipe( 52 ) with the front pipe( 41 ) to make the two pipes( 52 , 41 ) rotate together.
- the plate spring( 55 ) is combined to the inner pipe( 52 ) at one end and combined to the rear pipe( 50 ) at the other end by the holders( 56 ), so that the plate spring( 55 ) is elastically twisted by the rotation of the front pipe( 41 ), relative to the rear pipe( 50 ), caused by the rider's twisting force.
- the plate spring( 55 ) provides restoring force when the twisting force is removed.
- the twist-pipe( 40 ), with the plate spring( 55 ) in it enables the rider to safely maintain his/her balance by its restoring force generated by the plate spring( 55 ) when the rider twists the front and rear boards( 10 , 20 ) right and left to make a turn or to generate driving force while riding the skateboard of the present invention.
- the two boards( 10 , 20 ) can be separated by pushing the button( 54 ) of the spring lock( 53 , 54 ), so it is convenient for the rider to keep and carry the skateboard.
- two or more direction-casters( 13 , 23 ), which are mounted on the underside of the plates( 11 , 21 ), can be installed so as to be aligned along a longitudinal axis of the plates( 11 , 21 ), or so as to be parallel in a side-by-side arrangement With the longitudinal or the parallel configuration, the skateboard has a relatively larger turning radius, but it ensures greater safety.
- the direction-caster( 13 ) is adopted in the front board( 10 ), but one or more fixed roller sets( 61 ), in which the roller cannot be rotated on the axis of the roller arm, are adopted in the rear board( 20 ).
- the turning of the skateboard can be effected only by the front board( 10 ). So, in consideration of safety, this skateboard can be used for young children.
- the twist-pipe( 40 ) is not equipped with the plate spring device( 55 , 56 , 57 ), but there are two flexible rubber members( 65 ) which are parallel to the twist-pipe( 40 ) at both side of the twist-pipe( 40 ).
- the two flexible rubber members( 65 ) are connected at each of their one ends to the front board( 10 ) and at their other ends to the rear board( 20 ). The restoring force can be obtained by these flexible rubber members( 65 ) when the twist-pipe( 40 ) is twisted.
- skateboard it is conceivable to invent a skating board, as can be seen in FIG. 6 , provided with direction-caster skate blades( 73 , 83 ) that have blades( 76 , 86 ) instead of the rollers( 36 , 26 ) in the direction-casters( 13 , 23 ) in FIG. 1 .
- the skating board is used on ice.
Landscapes
- Motorcycle And Bicycle Frame (AREA)
Abstract
A skateboard has a board, and at least one front direction-caster and at least one rear direction-caster each respectively mounted at the front part and rear part of the underside of the board and having roller arms that are freely pivotable about an inclined axis and oriented in a common directional orientation at an angle defined by the inclined axis.
Description
- This application is a Divisional Application of U. S. patent application Ser. No. 10/491,671, filed Apr. 2, 2004 which claims priority to Korean Patent Application No. 2002-0023890, filed May 1, 2002, Korean Patent Application No. 2003-0025663, filed Apr. 23, 2003, and PCT/KR2003/000874, filed Apr. 30, 2003, the entirety of all are incorporated herein by reference as if fully set forth herein.
- The present invention relates to a skateboard and a connecting element configured so the rider can easily turn and accelerate.
- As it can be seen in
FIG. 7 a, conventional skateboard comprises an oval plate (111) and two wheel-sets (113, 123) which are mounted on the underside of the plate (111), each of the wheel-sets carries two wheels. With this configuration, the conventional skateboard can be accelerated by rider's stamping onto the ground and it can be steered to the right or left direction by the rider's leaning to one side or the other side of the plate (111). As it can be seen inFIG. 7 b, a conventional caster (130) comprises a wheel support (134), roller arm (135) and a roller (136). Such a conventional caster (130) is generally used as front wheel in a handcart because is easily changes its rolling direction by application of a minimal turning force by the user. - However, without the rider's stamping onto the ground, the conventional skateboard cannot be accelerated or can be accelerated only by an extremely skillful rider.
- Besides, there is another problem that the conventional skateboard cannot be tilted much for the right or left turn because the plate (111) touches the wheel of the wheel-set when the plate (111) is tilted more than a specific angle. With this reason, the conventional skateboard can be steered to a relatively small degree, so that it is not possible to change the direction of the skateboard for making a turn within a small turning radius.
- Therefore, it is needed and is the objective of this invention to provide a skateboard which is much more steerable than the conventional skateboard and which can be accelerated without the rider's stamping onto the ground.
- In order to achieve the objects above, there is provided a skateboard which has a front board, a rear board and a connecting element which interconnects the two boards in a spaced relationship, the skateboard comprising:
- one or more than one direction-caster which is mounted on the underside of the plate of at least one of the front board and the rear board; and
- the connecting element which includes an elastic member so that the connecting element can be elastically twisted or bent when it receives twisting force or bending force and it can be restored to its original shape when the force is removed.
- In accordance with the present invention, the front board may have one or more than one direction-caster and the rear board may have one or more than one fixed roller set.
- In accordance with the present invention, the connecting element may be a twist-pipe which has elastic material in it.
- In accordance with the present invention, the connecting element may comprise the twist-pipe and two elastic members which are provided parallel to the twist-pipe at both sides of the twist-pipe and are connected to the front board and the rear board at each of their both ends.
- In accordance with an aspect of the present invention, there is provided a skating board which has a front board, a rear board and a connecting element which interconnects the two boards in a spaced relationship, wherein at least one of the front board and the rear board has one or more than one direction-caster skate blade which is mounted on the underside of the plate of the front board and the rear board, the connecting element includes an elastic member so that it can be elastically twisted or bent when it receives twisting force or bending force and it can be restored to its original shape when the force is removed.
-
FIG. 1 is a perspective view illustrating the shape of a skateboard according to a first embodiment of the present invention; -
FIG. 2 is an exploded side view of the direction-caster inFIG. 1 ; -
FIG. 3 a, 3 b, 3 c are plan views showing how to steer the skateboard inFIG. 1 ; -
FIG. 3 d is a plan view showing how to generate the driving force of the skateboard inFIG. 1 ; -
FIG. 4 a is a cross section view of the twist-pipe inFIG. 1 ; -
FIG. 4 b is a perspective view showing the installation of the plate spring inFIG. 4 a; -
FIG. 5 a is the outline of a skateboard according to a second embodiment of the present invention; -
FIG. 5 b is the outlines of a skateboard according to a third embodiment of the present invention; -
FIG. 6 is a perspective view of a skating board skateboard according to a fourth embodiment of the present invention; -
FIG. 7 a is a perspective view illustrating the shape of a conventional skateboard; and -
FIG. 7 b is a side view of a conventional caster. - Hereinafter, the present invention will be described in more detail with reference to the following Examples. However, these examples are given for the purpose of illustration and are not to be construed as limiting the scope of the invention.
- As it can be seen in
FIG. 1 , the skateboard with direction-casters according to the present invention comprises two boards, which are the front board (10) and the rear board(20) respectively, and a twist-pipe(40) which interconnects the two boards(10,20) in a spaced relationship. - The board(10or20) comprises a plate(11or21), a direction-caster(13or23) which is mounted on the underside of the plate(11or21) and fastening devices(12) which tightly fasten the board(10or20) to the twist-pipe(40).
- As it can be seen in
FIG. 2 , the direction-caster comprises a wheel support(34) attached to the plate, a roller arm(35) which is pivotably connected to the wheel support(34) and a roller(36) which is rotatably connected to the free-end parts of the roller arm(35). The wheel support(34) has the shape of a wedge, so that an acute angle is formed between the contact surface of the wheel support(34) and the plate(11) and the facing surface of the wheel support(34) and the roller arm(35). - With this skateboard having the direction casters(13,23), as can be seen in
FIG. 3 a, if the rider leans the front board(10) to its right side with respect to the advancing direction of the skateboard, the roller arm(35) of the front direction-caster(13) turns to the left side and the roller(36) rolls to the right direction with respect to the advancing direction, so that the rider can turn to the right direction. - Alternatively, as can be seen in
FIG. 3 b, if the rider leans the rear board(20) on its right side with respect to the advancing direction, the roller arm(25) of the rear direction-caster(23) turns to the left side and the roller(26) rolls to the right with respect to the advancing direction, so that the rear board(20) turns to the right, with the result that the rider can turn to the left direction. - Combining said two effects, as can be seen in
FIG. 3 c, when the rider leans the front board(10) to its right side and the rear board(20) to its left side with respect to the advancing direction, the rider can turn to the right direction within a small turning radius. In addition, if the rider leans the both boards(10,20) to the same lateral side with respect to the advancing direction, he/she can advance in that direction with the both boards(10,20) advancing parallely. - The mechanics for generating the driving force is shown in
FIG. 3 d, where the rider makes twisting motion to the left direction with respect to the advancing direction. As the rider twists to the left direction, the front board(10) is biased to +y direction and the rear board(20) is biased to −y direction, so that the direction-casters(13,23) make rolling angles(α,β) with respect to the advancing direction proportional to the magnitude of the biasing forces received by the boards(10,20). And because of the characteristics of the wedge shape of the wheel supports(34,24) which is the components of the direction asters(13,23), forces(F1,F2) are generated in the rolling direction of the direction-casters(13,23). So the horizontal component forces(F1Cos α, F2Cosβ) of the forces(F1,F2) generate the driving forces which accelerate the skateboard. As a result, with the skateboard having direction casters, there is no need for the rider to stamp on the ground for generating the driving force, instead, he/she needs only to twist his/her body right and left without moving his/her feet. And it can be seen inFIG. 3 d, the vertical components of the F1 and F2 (F1Sin α, F2Sin β) make a moment M to make the skateboard rotate around its center of gravity. - As shown in
FIG. 4 a, the twist-pipe(40) comprises the front pipe(41), the rear pipe(50), the inner pipe(52) which is fixedly field in the rear pipe(50) by ball bearing(51) so that it can rotate with respect to the rear pipe(50) but cannot be separated from the rear pipe(50), and the spring lock(53,54) which is fixed in the inner pipe(52) and connects the inner pipe(52) with the front pipe(41) to make the two pipes(52,41) rotate together. - A plate spring(55), which will be installed in the rear pipe(50), is shown in
FIG. 4 b. The plate spring(55) is combined to the inner pipe(52) at one end and combined to the rear pipe(50) at the other end by the holders(56), so that the plate spring(55) is elastically twisted by the rotation of the front pipe(41), relative to the rear pipe(50), caused by the rider's twisting force. At this time, the plate spring(55) provides restoring force when the twisting force is removed. With said configuration, the twist-pipe(40), with the plate spring(55) in it, enables the rider to safely maintain his/her balance by its restoring force generated by the plate spring(55) when the rider twists the front and rear boards(10,20) right and left to make a turn or to generate driving force while riding the skateboard of the present invention. - Besides, the two boards(10,20) can be separated by pushing the button(54) of the spring lock(53,54), so it is convenient for the rider to keep and carry the skateboard.
- In addition, two or more direction-casters(13,23), which are mounted on the underside of the plates(11,21), can be installed so as to be aligned along a longitudinal axis of the plates(11,21), or so as to be parallel in a side-by-side arrangement With the longitudinal or the parallel configuration, the skateboard has a relatively larger turning radius, but it ensures greater safety.
- As it can be seen in
FIG. 5 a, the direction-caster(13) is adopted in the front board(10), but one or more fixed roller sets(61), in which the roller cannot be rotated on the axis of the roller arm, are adopted in the rear board(20). With this configuration, the turning of the skateboard can be effected only by the front board(10). So, in consideration of safety, this skateboard can be used for young children. - In
FIG. 5 b, the twist-pipe(40) is not equipped with the plate spring device(55,56,57), but there are two flexible rubber members(65) which are parallel to the twist-pipe(40) at both side of the twist-pipe(40). The two flexible rubber members(65) are connected at each of their one ends to the front board(10) and at their other ends to the rear board(20). The restoring force can be obtained by these flexible rubber members(65) when the twist-pipe(40) is twisted. - And from the skateboard above, it is conceivable to invent a skating board, as can be seen in
FIG. 6 , provided with direction-caster skate blades(73,83) that have blades(76,86) instead of the rollers(36,26) in the direction-casters(13,23) inFIG. 1 . The skating board is used on ice.
Claims (2)
1. A skateboard comprising:
a board, and at least one front direction-caster and at least one rear direction-caster each respectively mounted at the front part and rear part of the underside of the board and having roller arms that are freely pivotable about an inclined axis and oriented in a common directional orientation at an angle defined by the inclined axis.
2. A skateboard according to claim 1 , wherein the direction-caster comprises:
a wheel support attached to the board having the shape of a wedge, a roller arm pivotably connected to the wheel support, and a roller rotatably connected to a free-end part of the roller arm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/689,827 US20070257459A1 (en) | 2002-05-01 | 2007-03-22 | Skateboard with direction-caster |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020023890A KR20020042572A (en) | 2002-05-01 | 2002-05-01 | The skateboard that go forward by swing |
KR2002-0023890 | 2002-05-01 | ||
KR2003-0025663 | 2003-04-23 | ||
KR1020030025663A KR100394848B1 (en) | 2002-05-01 | 2003-04-23 | Skating board having steering caster |
PCT/KR2003/000874 WO2003092831A1 (en) | 2002-05-01 | 2003-04-30 | Skateboard with direction-caster |
US10/491,671 US7195259B2 (en) | 2002-05-01 | 2003-04-30 | Skateboard with direction-caster |
US11/689,827 US20070257459A1 (en) | 2002-05-01 | 2007-03-22 | Skateboard with direction-caster |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/491,671 Division US7195259B2 (en) | 2002-05-01 | 2003-04-30 | Skateboard with direction-caster |
PCT/KR2003/000874 Division WO2003092831A1 (en) | 2002-05-01 | 2003-04-30 | Skateboard with direction-caster |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070257459A1 true US20070257459A1 (en) | 2007-11-08 |
Family
ID=29405396
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/491,671 Expired - Lifetime US7195259B2 (en) | 2002-05-01 | 2003-04-30 | Skateboard with direction-caster |
US11/357,918 Abandoned US20070001414A1 (en) | 2002-05-01 | 2006-02-17 | Skateboard with direction-caster |
US11/689,827 Abandoned US20070257459A1 (en) | 2002-05-01 | 2007-03-22 | Skateboard with direction-caster |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/491,671 Expired - Lifetime US7195259B2 (en) | 2002-05-01 | 2003-04-30 | Skateboard with direction-caster |
US11/357,918 Abandoned US20070001414A1 (en) | 2002-05-01 | 2006-02-17 | Skateboard with direction-caster |
Country Status (9)
Country | Link |
---|---|
US (3) | US7195259B2 (en) |
EP (1) | EP1511541B1 (en) |
JP (1) | JP4411200B2 (en) |
AT (1) | ATE377443T1 (en) |
AU (1) | AU2003224481B2 (en) |
CA (1) | CA2524490C (en) |
DK (1) | DK1511541T5 (en) |
ES (1) | ES2297154T3 (en) |
WO (1) | WO2003092831A1 (en) |
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US20100117316A1 (en) * | 2008-11-13 | 2010-05-13 | Jasun Weiner | Scooter with inclined caster |
US20110018215A1 (en) * | 2008-02-14 | 2011-01-27 | Mk Partner Holding Aps | Skateboard |
US20110133420A1 (en) * | 2008-11-13 | 2011-06-09 | Smith Kevin L | Three-wheeled skateboard method |
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USD865096S1 (en) | 2015-05-04 | 2019-10-29 | Razor Usa Llc | Skateboard |
USD871532S1 (en) | 2016-09-02 | 2019-12-31 | Razor Usa Llc | Powered wheeled board |
US10709960B2 (en) | 2014-11-26 | 2020-07-14 | Razor Usa Llc | Powered wheeled board |
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US8079604B2 (en) * | 2009-05-28 | 2011-12-20 | Surfskate Industries, Llc | Skateboard providing substantial freedom of movement of the front truck assembly |
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US8152176B2 (en) * | 2009-06-25 | 2012-04-10 | Sbyke Usa Llc | Truck assembly |
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US20130168936A1 (en) * | 2010-03-20 | 2013-07-04 | Shuei Morita | Skateboard |
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Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3399904A (en) * | 1966-09-09 | 1968-09-03 | James W. Schinke | Skate board structure |
US4076267A (en) * | 1976-09-20 | 1978-02-28 | Willis Leonard Lipscomb | Articulated skateboard |
US4082306A (en) * | 1976-12-09 | 1978-04-04 | Gregg Sheldon | Torsion bar skateboard |
US4093252A (en) * | 1977-01-28 | 1978-06-06 | Charles A. Burrell | Scooter board |
US4451055A (en) * | 1978-04-11 | 1984-05-29 | Lee Robert E | Propulsion means actuated by weight |
US5098087A (en) * | 1991-06-06 | 1992-03-24 | Matile Curtis L | Pole propelled land vehicle |
US5347681A (en) * | 1993-02-03 | 1994-09-20 | James P. Wattron | Releasable fifth wheel caster for skateboards |
US5458351A (en) * | 1994-12-19 | 1995-10-17 | Yu; Fu B. | Skate board combination |
US5492345A (en) * | 1994-08-25 | 1996-02-20 | Kruczek; Leszek | Self propelled roller skate |
US5540455A (en) * | 1994-02-23 | 1996-07-30 | Chambers; Lile R. | Articulating skateboard with springable connector |
US5984328A (en) * | 1996-04-25 | 1999-11-16 | Tipton; David W. | Two-wheeled skateboard |
US6193249B1 (en) * | 1996-07-03 | 2001-02-27 | Salvatore Buscaglia | Turning mechanism for tandem wheeled vehicles and vehicles employing the same |
US6206389B1 (en) * | 1999-05-24 | 2001-03-27 | George Yagi | Method and apparatus for surfable skateboards |
US6338494B1 (en) * | 2001-01-24 | 2002-01-15 | Michael Killian | Articulated two wheel board |
US20020006705A1 (en) * | 2000-05-12 | 2002-01-17 | Hideomi Suzawa | Semiconductor device and method for manufacturing same |
US20020067015A1 (en) * | 2000-10-27 | 2002-06-06 | Tyler Tierney | Steerable in-line skateboard |
US6419249B1 (en) * | 2001-07-20 | 2002-07-16 | Sheng-Huan Chen | Roller board with a pivoting roller unit which is adapted to provide enhanced stability during turning movement |
US6428022B1 (en) * | 1999-12-13 | 2002-08-06 | Yoshi Namiki | Inline skateboard |
US20020149166A1 (en) * | 2001-04-11 | 2002-10-17 | Potter Steven Dickinson | Balancing skateboard |
US6481724B1 (en) * | 2000-04-14 | 2002-11-19 | Renny Carl Whipp | Adapter for converting in-line roller skates to ice skates |
US20020195788A1 (en) * | 2001-02-05 | 2002-12-26 | Tyler Tierney | Steerable in-line street ski |
US20040021281A1 (en) * | 2002-08-01 | 2004-02-05 | Odell Stephens | Skateboards |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1405865A1 (en) * | 1986-04-16 | 1988-06-30 | К. Д. Гнилоквас | Skateboard |
JPH06103765B2 (en) | 1987-10-30 | 1994-12-14 | 日本電気株式会社 | Semiconductor laser bias current control method |
GB2318519B (en) | 1996-10-22 | 2000-07-12 | John Edward Stewardson | Inherently stable rideable platform |
JP2001029663A (en) * | 1999-07-19 | 2001-02-06 | Koji Takahashi | Spring board for game |
US6528022B1 (en) * | 1999-11-29 | 2003-03-04 | Yukio Kinoshita | Ozone generating apparatus and corona generating apparatus |
KR100391949B1 (en) | 2001-10-30 | 2003-07-23 | 차기영 | Road roller-board |
-
2003
- 2003-04-30 ES ES03721127T patent/ES2297154T3/en not_active Expired - Lifetime
- 2003-04-30 CA CA2524490A patent/CA2524490C/en not_active Expired - Lifetime
- 2003-04-30 WO PCT/KR2003/000874 patent/WO2003092831A1/en active IP Right Grant
- 2003-04-30 AU AU2003224481A patent/AU2003224481B2/en not_active Expired
- 2003-04-30 US US10/491,671 patent/US7195259B2/en not_active Expired - Lifetime
- 2003-04-30 JP JP2004501009A patent/JP4411200B2/en not_active Expired - Lifetime
- 2003-04-30 EP EP03721127A patent/EP1511541B1/en not_active Revoked
- 2003-04-30 DK DK03721127.3T patent/DK1511541T5/en active
- 2003-04-30 AT AT03721127T patent/ATE377443T1/en active
-
2006
- 2006-02-17 US US11/357,918 patent/US20070001414A1/en not_active Abandoned
-
2007
- 2007-03-22 US US11/689,827 patent/US20070257459A1/en not_active Abandoned
Patent Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3399904A (en) * | 1966-09-09 | 1968-09-03 | James W. Schinke | Skate board structure |
US4076267A (en) * | 1976-09-20 | 1978-02-28 | Willis Leonard Lipscomb | Articulated skateboard |
US4082306A (en) * | 1976-12-09 | 1978-04-04 | Gregg Sheldon | Torsion bar skateboard |
US4093252A (en) * | 1977-01-28 | 1978-06-06 | Charles A. Burrell | Scooter board |
US4451055A (en) * | 1978-04-11 | 1984-05-29 | Lee Robert E | Propulsion means actuated by weight |
US5098087A (en) * | 1991-06-06 | 1992-03-24 | Matile Curtis L | Pole propelled land vehicle |
US5347681A (en) * | 1993-02-03 | 1994-09-20 | James P. Wattron | Releasable fifth wheel caster for skateboards |
US5540455A (en) * | 1994-02-23 | 1996-07-30 | Chambers; Lile R. | Articulating skateboard with springable connector |
US5492345A (en) * | 1994-08-25 | 1996-02-20 | Kruczek; Leszek | Self propelled roller skate |
US5458351A (en) * | 1994-12-19 | 1995-10-17 | Yu; Fu B. | Skate board combination |
US5984328A (en) * | 1996-04-25 | 1999-11-16 | Tipton; David W. | Two-wheeled skateboard |
US6193249B1 (en) * | 1996-07-03 | 2001-02-27 | Salvatore Buscaglia | Turning mechanism for tandem wheeled vehicles and vehicles employing the same |
US6206389B1 (en) * | 1999-05-24 | 2001-03-27 | George Yagi | Method and apparatus for surfable skateboards |
US6428022B1 (en) * | 1999-12-13 | 2002-08-06 | Yoshi Namiki | Inline skateboard |
US6481724B1 (en) * | 2000-04-14 | 2002-11-19 | Renny Carl Whipp | Adapter for converting in-line roller skates to ice skates |
US20020006705A1 (en) * | 2000-05-12 | 2002-01-17 | Hideomi Suzawa | Semiconductor device and method for manufacturing same |
US20020067015A1 (en) * | 2000-10-27 | 2002-06-06 | Tyler Tierney | Steerable in-line skateboard |
US6338494B1 (en) * | 2001-01-24 | 2002-01-15 | Michael Killian | Articulated two wheel board |
US20020195788A1 (en) * | 2001-02-05 | 2002-12-26 | Tyler Tierney | Steerable in-line street ski |
US20020149166A1 (en) * | 2001-04-11 | 2002-10-17 | Potter Steven Dickinson | Balancing skateboard |
US6419249B1 (en) * | 2001-07-20 | 2002-07-16 | Sheng-Huan Chen | Roller board with a pivoting roller unit which is adapted to provide enhanced stability during turning movement |
US20040021281A1 (en) * | 2002-08-01 | 2004-02-05 | Odell Stephens | Skateboards |
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US20110018215A1 (en) * | 2008-02-14 | 2011-01-27 | Mk Partner Holding Aps | Skateboard |
US8469376B2 (en) * | 2008-02-14 | 2013-06-25 | Mk Partner Holding Aps | Skateboard |
US20110140386A1 (en) * | 2008-08-11 | 2011-06-16 | Eem Sik Yoon | Skateboard |
US8459668B2 (en) * | 2008-08-11 | 2013-06-11 | Eem Sik Yoon | Skateboard |
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US20100108423A1 (en) * | 2008-11-04 | 2010-05-06 | Performance Concepts, Inc. | Self-propelled vehicle and articulated steerable mobile chassis thereof |
US8376378B2 (en) | 2008-11-04 | 2013-02-19 | Performance Concepts, Inc. | Self-propelled vehicle and articulated steerable mobile chassis thereof |
US8684377B2 (en) | 2008-11-04 | 2014-04-01 | Performance Concepts, Inc. | Self-propelled vehicle and articulated mobile chassis thereof |
US20110133420A1 (en) * | 2008-11-13 | 2011-06-09 | Smith Kevin L | Three-wheeled skateboard method |
US20100117316A1 (en) * | 2008-11-13 | 2010-05-13 | Jasun Weiner | Scooter with inclined caster |
US8075006B2 (en) * | 2008-11-13 | 2011-12-13 | Smith Kevin L | Three-wheeled skateboard system and method |
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US8636288B2 (en) | 2008-12-19 | 2014-01-28 | Jeong Ho Jeon | Street board |
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US20150238845A1 (en) * | 2012-09-29 | 2015-08-27 | Benjamin Daniel Clayton | Freestyle Board Sports Device |
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US11478693B2 (en) | 2014-11-26 | 2022-10-25 | Razor Usa Llc | Powered wheeled board |
US10709960B2 (en) | 2014-11-26 | 2020-07-14 | Razor Usa Llc | Powered wheeled board |
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US11446562B2 (en) | 2019-09-18 | 2022-09-20 | Razor Usa Llc | Caster boards with removable insert |
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Also Published As
Publication number | Publication date |
---|---|
WO2003092831A1 (en) | 2003-11-13 |
CA2524490A1 (en) | 2003-11-13 |
ES2297154T3 (en) | 2008-05-01 |
ATE377443T1 (en) | 2007-11-15 |
EP1511541A1 (en) | 2005-03-09 |
JP4411200B2 (en) | 2010-02-10 |
AU2003224481B2 (en) | 2006-12-21 |
CA2524490C (en) | 2013-04-09 |
US20040262872A1 (en) | 2004-12-30 |
EP1511541B1 (en) | 2007-11-07 |
DK1511541T3 (en) | 2008-03-10 |
US20070001414A1 (en) | 2007-01-04 |
DK1511541T5 (en) | 2010-10-25 |
EP1511541A4 (en) | 2005-09-07 |
US7195259B2 (en) | 2007-03-27 |
JP2005537820A (en) | 2005-12-15 |
AU2003224481A1 (en) | 2003-11-17 |
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