WO2017035285A1 - Planche à roulettes à mécanisme de direction multi-pivotant - Google Patents

Planche à roulettes à mécanisme de direction multi-pivotant Download PDF

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Publication number
WO2017035285A1
WO2017035285A1 PCT/US2016/048501 US2016048501W WO2017035285A1 WO 2017035285 A1 WO2017035285 A1 WO 2017035285A1 US 2016048501 W US2016048501 W US 2016048501W WO 2017035285 A1 WO2017035285 A1 WO 2017035285A1
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WO
WIPO (PCT)
Prior art keywords
skateboard
board
frame
coupled
wheel
Prior art date
Application number
PCT/US2016/048501
Other languages
English (en)
Inventor
Manik Shinde PRATHAMESH
Original Assignee
Prathamesh Manik Shinde
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Prathamesh Manik Shinde filed Critical Prathamesh Manik Shinde
Priority to US15/755,318 priority Critical patent/US20180243638A1/en
Publication of WO2017035285A1 publication Critical patent/WO2017035285A1/fr

Links

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
    • A63C17/01—Skateboards
    • A63C17/011—Skateboards with steering mechanisms
    • A63C17/013—Skateboards with steering mechanisms with parallelograms, follow up wheels or direct steering action
    • 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
    • A63C17/015—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
    • 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
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
    • A63C17/1409—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels
    • A63C17/1427—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels the brake contacting other wheel associated surfaces, e.g. hubs, brake discs or wheel flanks
    • 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
    • A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
    • A63C2017/1463—Foot or toe operated

Definitions

  • the majority of conventional skateboards, utilize an elongated board with a front track, and a rear truck, each having a two wheel steering assembly.
  • Each steering assembly consists of two wheels fixed relative to the truck in straight forward-and-reverse orientation.
  • a person riding the skateboard will lean to the right or left, forcing the trucks to -slightly angle the wheels in the chosen direction.
  • the skateboard will, turn to the right or left, the turning radius is typically limited by resistance from the trucks and wheels, in order to provide motive force, forward or backward, a rider must push the skateboard.
  • an improved steering mechanism is needed that provides significantly improved control, including greater turning capability.
  • An improved skateboard is also needed wherein the board (i.e.. "deck”) can rock up-and-down along the side edges of the frame to provide motive force;
  • Another needed improvement is a skateboard having front wheels that can pivot perpendicularly to the frame, thus a skateboard thai makes the wheels lean and turn, at the same time when turning (i.e., with positive camber in the steering direction), to provide: greater taming control to a rider.
  • a skateboard having such a steering mechanism is advantageous ' when the steering mechanism can be deployed on any other vehicle where positive camber while turning is desired.
  • a skateboard having positive camber steering when steered along a surface.
  • the skateboard comprises a -frame having a center portion and an end portion, and a hoard pivotally coupled to the center portion of the frame by a board pivot assembly.
  • A.t least one steering assembly is coupled proximal th end portion, with, the steering assembly including, an upper truck arm, a lower truck ami, and at least one -wheel
  • the upper truck arm and the lower truck arm. are spaced apart relative to the frame, and the wheel has. an axis of rotation.
  • the up er: truck arm and the lower truck arm are each rotatahle about an axis of travel parallel to the skateboard's line of travel
  • the .upper truck arm is coupled to the wheel above the axis of rotation relative to the surface
  • the lower track arm is coupled to the wheel below the axis of rotation relative to the surface.
  • the upper truck arm extends farther from the frame than the lower truck arm, imparting a positive camber in the direction of steering.
  • a leve connected t a drive assembly is provided, wherein pivoting the board moves the lever and rotates the drive assembly, thereby moving the skateboard forward.
  • the frame preferably has a straight section and a curved outward section, and includes board pivot interface for engaging the board pivot assembly.
  • the frame also has an elevated rear end. portion.
  • the board preferably includes a variable width.
  • Ball joints may couple the lower track arm mi the upper truck arm to the wheel, and the drive assembly preferably comprises a one way bearing coupled to a rear wheel
  • the drive assembly may also include a planetary gear arau a one- a bearing coupled to a -rear wheel.
  • the skateboard also preferabl includes a disk brake coupled to a rear wheel the disk brake- governed by an actuator on the board .
  • the skateboard has positive camber steering along a surface, including a frame having an -end portion and a board coupled to the .frame.
  • a steering assembly coupled t the end portion includes an upper track arm, a lower truck ami and at least one wheel.
  • the upper truck arm and the lower truck anil are spaced apart relative to the frame, the wheel having an axis of rotation.
  • the upper truck arm and the lower truck arm are also each rotatable about an axis of travel parallel to the skateboard's line of travel
  • the upper truck arm is coupled to the wheel above the axis of rotation relative to the surface and the lower truck arm is coupled to the wheel below the axis of rotation relati ve to the surface, such thai the upper truck arm extends farther from the fram than the lower truck arm, thereby imparting a positive camber i the direction of steering.
  • the second embodiment skateboard frame may also have a straight section and a curved outward section, and me frame may include an elevated rear end portion.
  • the board may have a variable width, bail joints may couple the lower truck .arm and the upper truck, ami to the wheel, and the board may be coupled to a center portion of the frame by a board pivot assembly.
  • the skateboard may also include a lever connected .to a drive assembly, wherein pivoting the board moves the lever and rotates the dri e assembly.
  • the drive -assembly preferably includes a one way bearing coupled to a rear wheel, and may include a planetary gear around a one-way bearing coupled to a rear wheel.
  • the skateboard preferably includes a disk brake coupled to a rear wheel, the disk brake governed by an actuator on the board.
  • FIG. 1 illustrates an orthographic left side view -of a multi-pivoting skateboard
  • FIG. 2 illustrates an orthographic right s de view of the multi-pivoting skateboard
  • FIG . 3 il lustrates an elevational left side view of the multi-pivoting skateboard; ⁇ 00121 FIG, 4 illustrates a top plan view of the multi-pivoting skateboard;
  • FIG. 5 illustrates a bottom plan view of the -multi-pivoting skateboard
  • FIG. 6 illustrates a front elevational view of the multi-pivoting skateboard;
  • 00151 FIG. 7 illustrates a rear elevational view of the multi-pivoting skateboard;
  • FIG. 8 illustrates an exploded view of the multi-pivoting skateboard;
  • FIG. 9 illustrates a bottom view of a .frame of the .multi-pivoting skateboard; 1001$!
  • FIG. 10 illustrates an orthographic top view of the frame;
  • FIG. 11 illustrates an exploded view of a front steering assembly of the -multi- pivoting skateboard
  • FIG. .12 illustrates an. exploded view of a rear dri ve assembly of the multi- pivoting skateboard
  • FIG, 13- illustrates an- orthographic view of a person riding the multi-pivoting skateboard
  • FIG. 15 illustrates a first orthographic front view of the front steering assembly showing two iron t tires/wheels in a pi voted position
  • FIG. 16 illustrates a second orthographic front vie of the front steering assembly showing two: front tires/wheels in a pivoted position;
  • FIG. ! 7 illustrates a top view of the front steering assembly showing two front tires/wheels In a pivoted position
  • FIG. 1 S illustxates a side elevational view of the multi-pivoting skateboard's rear tire/wheel with two levers.
  • FIG. 1 illosirates an orthographic top view of a second alternative embodiment multi-pivoting skateboard having, a front steering assembly with two tires/wheels, a rear assembly having two tires/wheels and an alternative board shape;
  • FIG. 20 illustrates a first alternative embodiment, front steering assembly annotated with an. XYZ coordinate system
  • FIG. 21 illustrates an exploded view, a top orthogonal view and a bottom orthogonal view of th - alternative embodiment steering assembly
  • FIG. 22 illustrates, an exploded view of a second alternative embodimen front steering assembly
  • FIG. ' 23 illustrates an exploded view of a damping system.
  • an improved skateboard 10 includes the following major elements: a board 12, a frame 32, front steering assembly 70 and a rear drive assembly 90.
  • the board 12, as shown in FIGS. -8 » includes an upper surf ace 14, a lower surface 16, a board front end 1 S, a board rear end 20 and a perimeter edge 22, Located substantially centrally of the board 12 on the lower surface 16 is a board pivot assembly 54.
  • Traditional skateboards have elongated flat decks (he, hoards) with straight sides and radlused front and rear ends.
  • the skateboard 10 utilises a unique hoard 12 shape that curves upward at the front and r , with a perimeter edge 22 thai curves inward along the board 12. This creates a board 12 with wider sections toward the board front end 18 and the rear end 20, and narrowed near the hoard pivot assembly .
  • the board rear end 20 of the board 12 tapers to be substantially .rectangular with preferable dimensions of 1.0-2.0 inches (2.54-5.08 cm) in width, extendin along the side of the rear wheel 92 preferably to the left..
  • the illustrated skateboard 1 utilizes a specific board 12 shape,, other shapes and dimensions of the board. 1 are contemplated, such as die board 12 with, straight sides shown in. FIG. 1,4,
  • the frame 32 is comprised of a straight section 34, an outward curved section 36, a frame front end 38 having an open ended hollow cylinder 40 and a frame rear end 42 having a Same opening 44.
  • the straight section 34 s ans the skateboard 10 with the straight section 34 having an upward curve a it approaches, the • frame rear end 42.
  • the outward curved section 36 branches off from the frame front end 38 and eoiitinties at an. outward angle to approximately the board, pivot assembly 54, and men curve back inward with an S-shape until it contacts the straight section 34 at .a point substantially ' two- thirds the length of the straight section 34.
  • a circular pivot board interface 46 Located on both the straight section 34 and the outward curved section 36 is a circular pivot board interface 46, each for interfacing the board pivot assembly 54 for anchoring the board 12 to the frame 32, and allowing the board 12 to smoothly pivot about the board pivot assembly 54.
  • the board pivot, assembly 54 comprises a center rod 56 with two spacers 58 and two nuts 60.
  • a first bearing 24 and a second bearing 26 are located between the circular board pi vot interfaces 46 and the center rod 56.
  • the first bearing 24 and : .second bearing 26 are located on the straight section 34 and outward curved section 36, -respectively Circular hoard pivot interfaces 46 and board 12 are aligned so that the opening on the first bearing 24 and second bearing 26 and. the respective openings 48 on each of the circular pivot board interfaces 46 creates a unitary axial opening as shown i FIG, 8.
  • the center rod 56 is preferably threaded at each end, allowing one of the nuts 60 to be screwed onto each end. Once the nuts 60 are screwed on the board 12 is .securely attached to the frame 32 and can be raised or lowered along each side.
  • the first bearing 24 and second bearing 26 are inserted into the center ci rcular bore of the board 12.
  • T e center rod 56 goes through the center circular bore of the board 12 and is inserted through the first hearing 24 and the second bearing 26, Both sides of the center rod 56 are fitted inside the openings 48 of the circular board pivot interfaces 46 on the frame 32 and fixed by mus 60.
  • the whole board pivot assembly 54 allows a smooth rocking up and down pivoting movement to the board 12.
  • FIGS. L 4, 5, 6, 8; 1 1, 15 and 16 show the front steering assembly 70.
  • the from steering assembly 70 includes t wo front wheels 72:. two trucks 74, a truck upper arm 76, a truck lower arm 78, a stabiliser 80 aud attachment -components 82 which include ball joint rod ends 86 proximal each wheel.
  • a wheel 72 is located on each side of the board 12 and the feme 32 at the front
  • the attachment components 82 in conjunction with the open ended hollow cylinder 40 at the -front end 38 of the -frame 32, are utilized to secure the two front wheels 72, with the ball joint ends 86 attached terminally tliereto.
  • the upper arm 76 and the lower arm 78 are attached to each respective wheel 72,
  • the upper ami 76 and the lower arm 78 ⁇ allow the tw front wheels 72 to pivot about the frame 32.
  • a compression spring 84 is located on each side of the frame 32 and is utilized to provide resiliency to each wheel 72 as the front wheels 72 pivot, urging them back to an upright orientation
  • the front steering assembly 70 is made in such a way that when rider pushes the board 12 down either to the left or right, both front, wheels 72 tilt relative to a vertical plane and also turn into the pushed direction as shown in. FIGS. 13,15, 16 and 17.
  • the principal difference between the upper arm 7 and the lower arm 78 ⁇ is that the upper ami 76 is not straight, but rather angled, frontward from the frame 3 to the front wheels 72, while the lower arm 78 is straight.
  • Both the upper arm 76 and lowe ami 78 hav e a bore in the middle for attachment to the frame front end 38.
  • [004 j ' fhe rea assembly 90 includes a single rear wheel 92, first rear wheel attachment components 94, bearings 96, an internal gear .hub/planetary gear system 106, and second rear wheel attachment components 120.
  • the planetary gear system 106 includes a planetary gear carrier 108, a sun gear 110, three planet gears 1 .12, an annul us 114, a first lever 1 16, a second lever 118, and a one-way bearing 122.
  • the rear drive assembly 90 is located at the rear of the skateboard 10,
  • the rear wheel 92 is attached to the frame rear end 42 by use of the first attachment components 94 in conjunction with the frame opening 44 at the frame rea end 42.
  • the rear- wheel 92 is attached to the frame rear end 42. using of the internal gear hub pianetary gear system 106 and th first attachment components 94.
  • the e r drive assembly 90 is the main driving mechanism of the skateboard 10,
  • the rear end 20 of the board 12 is attached to t he second le v er 118 wit a pressed fi t bearing.
  • One end of the first lever 1 16 is attached to the internal gear hub/planetary gear system 106 with the one-way bearing 1.22 between them.
  • the other end of the first lever 1 16 is attached to the second lever 11-8.
  • the second lever 1.1.8 has a cylindrical extruded cut on both ends for bearings which are pressed fit into it.
  • the first lever 1 16 has a .
  • first end of the lever 1 1 also has a cylindrical extruded mi, with a key way slot so thai the one-wa bearing 122 fits into it
  • the other end has a straight slot shape extruded cut which acts as a. slider
  • first lever 1 16 has a straight slot shape extruded cu t on the second end. The cut is made because when a vertical force is applied to the first Sever 1 16 the internal gear huh/ planetary gear assembly .106 and the rear wheel. 92 wi.ll not rotate because the vertical force is moving through the center of the internal gear h ub/planetary gear assemb ly 106 and rear wheel 92, So the straight slot shape on the second end of the first lever 116 shifts the force
  • the shift o the force direction/angle causes the internal gear hub/planetary gear assembly 106 and rear wheel 92 to rotate when the board 12 is pushed up and down,
  • the skateboard. 10 can selectivel engage various gears depending on the speed and riding conditions thai are encountered.
  • the internal gear hub/pl netary gear system 106 has gear ratios so that rider can go faster, as best shown in FIG;. 8,
  • the planet gear carrier 108, sun gear 110, three planet gears 1 12 and annulns S 14 are attached inside the rear wheel 9 and the whole assembly is attached to the frame rear end 42. It ' should be noted that while the haemal gear hub/planetary gear assembly 106 is disclosed and shown, the skateboard 10 is not limited to any specific number of gea ratios. Other numbers of gears, or no gears, can also be utilized without departing from the scope, of the invention,
  • the rectangular section of the board 12 is attached to the rear end 42 of the frame by use of the first levers and the second lever 118.
  • the first lever 116 and the second lever 1 18 allow re tear end 20 of the board 1.2 to pivot up down about the ' frame 32.
  • the first lever 1 1 is attached to the frame rear end 42, and the second lever 1 18 is ' attached to the one-way bearing 122.
  • the one-way hearing 122 is attached to the internal gear hub/pl anetary gear sys tem 306 and the internal, gear ' huh planetary gear system 106 i s attached to the rear wheel 92,
  • the first lever 1 16 is also attached t the rear end 20 of the board 12 which is attached to the rear drive assembly .90. As a rider pushes the board 12 up and down the rear wheel -92 rotates with the help of the assembly 90.
  • the disc brake assembly 97 comprises a caliper 98., a disc 99, a wire 100, a brake actuator support 102 and a brake actuator 1 4.
  • the disc brake assembly 97 is utilized. As best shown in FIG. 8, the disc brake assembly 97 is located on the right ' side of the rear wheel 92 (when viewed from the front).
  • the disc brake assembly 97 functions as other conventional, disc brake systems, in order to slow down, or stop, a person tiding the skateboard 10 will step downward on the brake actuator 104, which is accessed from the upper surface 14 of the board 1 2 and is located on the left side adjacent the rear end 20 of the board 1.2.
  • the disc brake assembly 97 is disclosed and shown on the right side of th rear wheel 92, and the .gear system 106 is disclosed and shown on the left side of the rea wheel 92. Both the disc brake assembly 97 and the gear system 106 can be manufactured on opposite sides of the rear wheel 92 by the use. of minor modification to the skateboard's 10 design. Also, other types/designs of brake systems can be utilized. Also, in. this disclosure the multi-pivoting skateboard 10 has been described and shown with a front assembly having two front, wheels 72 and a rear assembly -having a single rear wheel 92. The fundamental inventive operation of the multi-pivoting skateboard 10 is not limited ' to the disclosed design. Other alternative embodiment skateboard design, having front and rear assemblies each having two wheels and with an appropriately modified board, is shown in FIG. 1 .
  • the multi-pivoting skateboard 10 provides a rider with significantl improved control.
  • a person riding the skateboard .10 can pivot the board up or down and to the right or left, .as shown in FIGURE 13.
  • the control is also increased by the ability of the wheels to pivot, as previously- disclosed.
  • the unique scrape of the board 12 provides a platform that allows a rider to fully utilize the capabilities of the multi-pivoting skateboard .10 while -maintainin -balance and riding comfort
  • the rider When riding the skateboard 10, the rider stands on the board 12 and uses both legs to push skate board 10 up and down to go forward, and left and right to steer int a turn, as- shown in FIG. 13. Th e board 12 pi vots about the frame interface 24 with the help of the board pivot assembly 54. The u and down oscillating movement causes the- skateboard 10 to move forward with the help of rear drive assembly 90.
  • the front steering assembly 70 helps a rider to turn, left and right by pushing the skateboard left and right,
  • FIGURE 20 shows an XYZ coordinate system and Parallelogram linkage system 136 and the two wheels 142 ( ' front or back, depending on the embodiment).
  • the parallelogram linkage system 136 has four sides 1 4.1 6, 148,150 and it is held by the center part 138 and attached at the bottom of the board 140.
  • the wheels .142 are -attached to two sides 144,148 of the parallelogram.
  • the wheels 142 are resting on the bottom plane ⁇ - ⁇ .
  • Z-X is vertical plane. All linkages 144,146,148,150 are attached to. each other with joints 152,154,156,158 these joint allow for the rotation of the linkages as shown with arrows- 160,162. hi assembly 70 shown in FIGS.
  • the ball joints 86 are used to allow degrees of freedom of rotation and in the assembly in.
  • FIG. 21 sleeve bearings 170 are attached at every joint 1.5.2,154, 156,158. And in FIG. 22 joints 200,202,204,206 are used.
  • FIG. 21 shows assembly 160. Unlike tipper aim 76 and the lower arm 78 from assembly 70 from PIG, 1.1, the- Top. Rod 162 and Bottom Rod 164 are straight and they are attached to the Mid 166 with nuts 168 and Bolts 170, There are sleeve bearings 170 at every joint point 172,174,176,178. Side pin 180 is used to attach the upright 182 to both the Top Rod 162 and the Bottom Rod 164, Wheels 72 are attached to the upright 182 with the nut 184 which is going, through opening 186. This, whole assembly .160 makes the parallelogram l inkage system which makes the wheels lean and turn at the same time.
  • FIG.22 shows assembly 188, i this assembly parallelogram linkage system has different joints that assembly 70 and 160.
  • Top bar 200 and Bottom bar 1 8 has bore
  • This bore openings 202,204,206,208 are at an angle.
  • a boh goes through opening 202,204,206,208 and attached to wheel holder 210.
  • the rubber bushings 194,196 are inserted into counferbore 212,214 of center Part 194, The rubber bushings 194,196 has through opening 212,214 where Top bar 200 and Rottorn bar 19$ are attached to center Pari 194 with the bol
  • FICl 23 shows the damping system.
  • the spherical bails 188, 190 tests in spherical concave ' 186 which is inside Mid 166, suspension Push 184 is between spring 192 and Mid 166 and lis inclined surfaces 216 are touching spherical balls 188,190.
  • Parallelogram moves at. an angle the Spherical balls 188, 190 slide over Incline surfaces 216 of suspension Push 184 and compresses the spring 1 2.

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  • Motorcycle And Bicycle Frame (AREA)

Abstract

L'invention concerne une planche à roulettes à direction de carrossage positive comprenant un châssis et une planche accouplée pivotante au châssis. Un ensemble de direction accouplé au châssis comprend un bras de bogie supérieur, un bras de bogie inférieur et une ou plusieurs roues. Le bras de bogie supérieur et le bras de bogie inférieur sont espacés par rapport au châssis et peuvent chacun tourner autour d'un axe de déplacement parallèle à la ligne de déplacement de la planche à roulettes. Le bras de bogie supérieur est accouplé à la roue au-dessus de l'axe de rotation par rapport à la surface, le bras de bogie inférieur étant accouplé à la roue au-dessous de l'axe de rotation par rapport à la surface. Ainsi, le bras de bogie supérieur s'étend davantage hors du châssis que le bras de bogie inférieur, ce qui crée un carrossage positif dans le sens de la direction.
PCT/US2016/048501 2015-08-26 2016-08-24 Planche à roulettes à mécanisme de direction multi-pivotant WO2017035285A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/755,318 US20180243638A1 (en) 2015-08-26 2016-08-24 Multi-Pivoting Steering Mechanism

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US201562209993P 2015-08-26 2015-08-26
US62/209,993 2015-08-26

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Publication Number Publication Date
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