WO2019165493A1 - Bogie de planches à roulettes - Google Patents

Bogie de planches à roulettes Download PDF

Info

Publication number
WO2019165493A1
WO2019165493A1 PCT/AU2019/000028 AU2019000028W WO2019165493A1 WO 2019165493 A1 WO2019165493 A1 WO 2019165493A1 AU 2019000028 W AU2019000028 W AU 2019000028W WO 2019165493 A1 WO2019165493 A1 WO 2019165493A1
Authority
WO
WIPO (PCT)
Prior art keywords
skateboard
truck
caster arm
caster
skateboard truck
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.)
Ceased
Application number
PCT/AU2019/000028
Other languages
English (en)
Inventor
William Henry PERRONET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Streetboardz International Pty Ltd
Original Assignee
Streetboardz International Pty Ltd
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
Priority claimed from AU2018900666A external-priority patent/AU2018900666A0/en
Application filed by Streetboardz International Pty Ltd filed Critical Streetboardz International Pty Ltd
Publication of WO2019165493A1 publication Critical patent/WO2019165493A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A63C17/0033—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
    • A63C17/011—Skateboards with steering mechanisms
    • A63C17/012—Skateboards with steering mechanisms with a truck, i.e. with steering mechanism comprising an inclined geometrical axis to convert lateral tilting of the board in steering of the wheel axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/26—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices

Definitions

  • the present invention relates to an improved truck for a rideable vehicle, such as a skateboard. More particularly, the present invention relates to a truck having a supported axle that pivots independently around two axes where one axis can be releasably locked to provide dual modalities of use as either a conventional skateboard truck or a more
  • Trucks illustrative of those used in skateboards are shown in U.S. Pat. No. 2,763,490 entitled “Roller Skate” issued to Crone on Sep. 18, 1956, and U.S. Pat. No. 3,945,655 entitled “Brake for Skateboard and the Like” issued to Banks, et al. on Mar. 23, 1976.
  • trucks are mounted at the front and rear ends of an elongated skateboard deck where each truck includes a pair of wheels mounted at opposite ends of a supported axle.
  • Trucks provide the steering mechanism for skateboards whereby lateral tilting of the skateboard deck opposably twists the axles causing the skateboard to turn.
  • the trucks also resist lateral tilting of the deck by means of spring-loaded resilient linkages, commonly urethane bushings that stabilise the skateboard, returning the skateboard deck to its normal horizontal position when a turn is completed.
  • spring-loaded resilient linkages commonly urethane bushings that stabilise the skateboard, returning the skateboard deck to its normal horizontal position when a turn is completed. This lateral stability is crucial to the useful operation of a skateboard.
  • an improved skateboard truck which pivots about two axes where a sliding lock is used to disable movement about the first axes so the truck functions in one of two modes, as either a conventional skateboard truck with adjustable lateral stability or as a caster truck with enhanced turning ability, all while utilising conventional skateboard bushings and pivot cups to reduce manufacturing cost and improve mechanical reliability.
  • a skateboard is comprised of an elongated deck with a pair of trucks attached underneath.
  • the improved skateboard truck is preferably attached to the front of the skateboard deck, while a conventional skateboard truck is fastened to the rear.
  • the improved skateboard truck according to this invention comprises an assemblage of a baseplate, caster arm, a hanger supporting a transverse axle and a releasable locking mechanism.
  • the baseplate includes a pivot pin receiving hole, a supporting bracket with a kingpin bolt receiving hole, a sliding lock cradle receiving aperture, and a longitudinal slot with a small spring loaded bolt receiving hole.
  • the caster arm with a pivot pin sheathed within a pivot cup mates with the pivot pin receiving hole in the baseplate.
  • the caster arm includes a mounting portion with an oval shaped through-hole.
  • First and second bushings are positioned on either side of the caster arm mounting portion.
  • First and second washers are positioned against respective outer ends of the bushings.
  • a kingpin bolt passes through the washers, bushings, and the oval shaped hole for mating with the kingpin bolt receiving hole on the support bracket of the baseplate.
  • the caster arm carried by the baseplate by means of the pivot pin and bushings is rotatable relative to the baseplate about a first axis.
  • the resilient linkage of the bushings pressed by the kingpin bolt against the mounting portion of the caster arm restricts rotational motion of the caster arm and biases the caster arm towards a centre position aligned with the skateboard's direction of movement.
  • the caster arm includes a first horizontal bracket with a pivot pin receiving hole and a second horizontal bracket with a kingpin bolt receiving hole.
  • the hanger supporting an axle having a pair of wheels mounted at opposite ends thereof has a pivot pin sheathed within a pivot cup that mates with the pivot pin receiving hole on the first horizontal bracket of the caster arm.
  • the hanger includes a body portion with an oversized through-hole. Third and fourth bushings are positioned on either side of the hanger body portion.
  • Third and fourth washers are positioned against respective outer ends of the bushings.
  • a kingpin bolt passes through the washers, bushings, and the oversized hole for mating with the kingpin bolt receiving hole on the second horizontal bracket of the caster arm.
  • the hanger carried by the caster arm via the pivot pin and bushings is rotatable relative to the caster arm about a second axis.
  • the resilient linkage of the bushings pressed by the kingpin bolt against the body portion of the hanger restricts rotational motion of the hanger relative to the caster arm and biases the hanger towards a centre position such that the supported axle is horizontal to the skateboard's direction of movement.
  • a sliding lock comprised of a cradle and an elongated slide member are intercoupled with the baseplate such that the cradle is positioned inside the baseplate cradle receiving aperture and the elongated slide member is positioned inside baseplate longitudinal slot for relative longitudinal sliding between retracted and extended positions. In said retracted position the cradle sits clear of the caster arm and the caster arm is rotatable.
  • the elongated slide member of the slide lock includes a first and second aperture with a narrow open slot running between them.
  • the first aperture of the elongated slide member centre aligns with the spring loaded bolt receiving hole of the baseplate.
  • the second aperture of the elongated slide member centre aligns with the spring loaded bolt receiving hole of the baseplate.
  • a small spring loaded bolt with a round head affixed to the bolt receiving hole of the baseplate operatively latches the sliding lock in either the retracted or extended position when the round head of the bolt mates with the respective first and second apertures of the elongated slide member.
  • the spring loaded bolt is depressed so the round head of the bolt clears the first and second apertures while the shank of the bolt passes through the narrow slot between the apertures.
  • the spring snaps the round head of the bolt back into the respective aperture latching the sliding lock.
  • a skateboard truck comprising a caster arm adapted to be pivotally attached with resilient bushings operatively connected to a raised bracket, raised relative to the underside of a skateboard deck having a first skateboard truck pivot axis; an axle with provision for wheels to be attached at opposite ends thereof supported by a cross member adapted to be pivotally attached with resilient bushings operatively connected to the caster arm having a second skateboard truck pivot axis; said caster arm and cross member being ganged together to provide independently adjustable pivoting of the skateboard truck about two axes of freedom; and a releasable locking means to prevent said caster arm from pivoting about the first pivot axis by said locking means to optionally provide conventional pivoting of the skateboard truck about a single axis.
  • FIG. 1 is an exploded perspective view of the improved skateboard truck of the present invention
  • FIG. 2 is a perspective view of the baseplate of the truck in FIG. 1;
  • FIG. 3 is a perspective view of the sliding lock of the truck in FIG. 1;
  • FIG. 4 is a perspective view of the caster arm of the truck in FIG. 1;
  • FIG. 5 is a perspective view of the hanger of the truck in FIG. 1;
  • FIG. 6 is a cross section view of the truck in FIG. 1;
  • FIG. 7A is a bottom on view of the truck in FIG. 1 mounted on then underside of a skateboard deck with the sliding lock in the retracted position and showing pivoting of the caster arm and hanger
  • FIG. 7B is a bottom on view of the truck in FIG. 1 mounted on then underside of a skateboard deck with the sliding lock in the extended position and showing pivoting of the hanger only;
  • an improved skateboard truck 10 having first 90 and second 92 axes of rotation.
  • the truck 10 comprises a baseplate 12, a caster arm 14, a hanger 16 and a sliding lock 18.
  • the baseplate 12, caster arm 14, hanger 16 and sliding lock 18 can be of any suitable construction and made of any suitable material.
  • the baseplate 12, caster arm 14, and hanger 16 are cast in A356 aircraft grade aluminium and heat treated to T6 and the sliding lock 18 is injection moulded in glass reinforced nylon plastic.
  • the baseplate 12, caster arm 14, hanger 16 and sliding lock 18 may be cast or forged of any formable high strength metal or plastic.
  • the baseplate 12 comprises a casting forming a base 20, a pivot platform 22, a support bracket 24, a cradle receiving aperture 26 and a longitudinal slot 28.
  • the base 20 is a substantially rectangular plate having a finite thickness, for example 6 mm, and a plurality of apertures 40 suitably configured for mounting the baseplate 12 onto the underside of a skateboard deck.
  • the support bracket 24 braced by side walls 30 projects outwards from one end of the base 20.
  • the support bracket 24 includes a bushing mating surface 32 preferably angled at seventy-five degrees relative to the base 20 and includes a kingpin bolt receiving hole 34 therein.
  • the pivot platform 22 is positioned between the side walls 30 and adjacent to the support bracket 24.
  • the pivot platform 22 is integral with the support bracket 24 and projects outwards from the base 20 at a preferable relative angle of fifteen degrees and includes a pivot pin receiving hole 36 therein.
  • the cradle receiving aperture 26 is a substantially rectangular opening in the base 20 positioned adjacent to the pivot platform 22.
  • a longitudinal slot 28 extends from the cradle receiving aperture 26 to the outside edge of the base 20.
  • the longitudinal slot 28 includes a circular opening 38 for receiving a spring-loaded bolt.
  • the sliding lock 18 comprises a substantially U shaped cradle
  • the elongated slide member 48 extends laterally from the opposite side of the cradle 44 to the curved notch 47.
  • the elongated slide member 48 includes a first 50 and second 52 circular aperture with a narrow open slot 54 running between the respective apertures 50, 52.
  • the caster arm 14 comprises a casting forming a mounting portion 56 with an oval shaped through hole 58 centrally located between first 60 and second 62 bushing mounting surfaces.
  • a pivot pin 64 projects laterally from one end of the mounting portion 56.
  • a first horizontal bracket 66 projects outwards from the mounting portion 56 and includes a pivot platform 68.
  • the pivot platform 68 is preferably angled at sixty-five degrees relative to the mounting portion 56 and includes a pivot pin receiving hole 70 therein.
  • a second horizontal bracket 72 projects outwards from the opposite end of the mounting portion 56 and includes a bushing mating surface 74.
  • the bushing mating surface 74 is preferably angled at twenty-five degrees relative to the mounting portion 56 and includes a kingpin receiving hole 76 therein.
  • the hanger 16 comprises a casting forming a body portion 78 with an oversized through hole 80 centrally located between first 82 and second 84 bushing mounting surfaces.
  • a transverse cross member 85 extends outward in opposite directions from one end of the body portion 78.
  • An axle rod 88 extends from end portions 87 of the cross member 85 suitable for mounting skateboard wheels 94 (See FIG. 6) on the axle threaded ends 89.
  • a pivot pin 86 projects laterally from a central region of the body portion 78 opposite to the cross member 85.
  • a first resilient bushing 100 is circumferentially mounted on the first bushing mounting surface 60 and a second resilient bushing 102 is circumferentially mounted on the second bushing mounting surface 62 of the caster arm 14.
  • First 104 and second 106 washers are positioned against respective outer ends of the bushings 100, 102.
  • a first kingpin bolt 96 passes through the receiving hole 34 of the support bracket 24, the first washer 104 and bushing 100, the oval shaped through hole 58 of the caster arm 14, the second bushing 102 and washer 106, against which it is retained and adjustably tensioned by a first kingpin lock nut 98.
  • the caster 14 arm carried by the baseplate 12 by means of the pivot pin 64 and bushings 100, 102 is rotatable relative to the baseplate 12 about a first axis 90.
  • a second kingpin bolt 120 passes through the receiving hole 76 of the second horizontal bracket 72 of the caster arm 14, the third washer 114 and bushing 110, the oversized through hole 80 of the hanger 16, the forth bushing 112 and washer 116, against which it is retained and adjustably tensioned by a second kingpin lock nut 98.
  • the hanger 16 carried by the caster arm 14 by means of the pivot pin 86 and bushings 110, 112 is rotatable relative to the caster arm 14 about a second axis 92.
  • the sliding lock 18 and baseplate 12 are slidably intercoupled by means of the cradle 44 being positioned inside the receiving aperture 26 of the baseplate 12 with the shoulders 46 of the sliding lock 18 supported by the sides 42 of the baseplate 12 aperture 26 and the elongated slide member 48 of the sliding lock 18 positioned inside the longitudinal slot 28 of the baseplate 12.
  • a round headed bolt 124 passes through the receiving hole 38 of the baseplate 12 and a compression spring 126 is held in place by a suitably tensioned lock nut 128. Relative longitudinal movement of the sliding lock 18 cradle 44 inside the baseplate 12 receiving aperture 26 is latched by means of the round head 130 of the bolt 124 mating with the circular first 50 and second 52 apertures of the slide member 48.
  • the resilient linkage of the first 100 and second 102 bushings pressed by the first kingpin bolt 96 and nut 98 against the mounting surfaces 60, 62 of the caster arm 14 and the mating surface 32 of the baseplate 12 support bracket 24 restricts rotational motion of the caster arm 14 about the first axis 90 and biases the caster arm 14 towards a centre position.
  • the resilient linkage of the third 110 and fourth 112 bushings pressed by the second kingpin bolt 120 and nut 122 against the mounting surfaces 82, 84 of the hanger 16 and the mating surface 74 of the caster arm 14 second horizontal bracket 72 restricts rotational motion of the hanger 16 about the second axis 92 and biases the hanger 16 towards a centre position.
  • a user may adjust the compression of the bushings 100, 102, 110, 112 against the mounting surfaces 60, 62, 82, 84, by tightening or loosening the kingpin nuts 98, 122, which in turn, limits the rotational movement of the caster arm 14 and hanger 16.
  • a beginner can tighten the kingpin nuts 98, 122, so the skateboard becomes pivotally restricted and more stable, whereas an advanced rider, can loosen the kingpin nuts 98, 122, so the skateboard becomes pivotally looser and more manoeuvrable.
  • the improved skateboard truck 10 is preferably attached to the front underside of the skateboard deck 93 such that the horizontal brackets 66 (See Fig. 1), 72 of the caster arm 14 extend rearward, with a conventional skateboard truck 138 fastened to the rear of said deck 93.
  • the sliding lock 18 With the sliding lock 18 in the retracted position 134 described above, the caster arm 14 is free to rotate.
  • the truck 10 converts lateral tilting of the skateboard deck 93 into substantially more than conventional 138 turning of the hanger 16 and wheels 94.
  • the resilient bushings 100, 102, 110, 112 See FIG.
  • the truck 10 converts lateral tilting of the skateboard deck 93 into conventional 138 turning of the hanger 16 and wheels 94 providing increased lateral stability to the deck 93 allowing the skateboard to be less sensitive to turning and able to be ridden at higher speeds with increased control and steadiness.

Landscapes

  • Motorcycle And Bicycle Frame (AREA)

Abstract

L'invention concerne un bogie de planche à roulettes qui pivote autour de deux axes, un verrou coulissant étant destiné à bloquer le mouvement autour des premiers axes de sorte que le bogie fonctionne dans un mode parmi deux modes, soit comme un bogie de planche à roulettes classique ayant une stabilité latérale réglable, soit comme un bogie à roulettes orientables présentant une capacité de rotation améliorée, à l'aide de bagues de planche à roulettes classiques et de coupelles de pivot. Le bogie de planche à roulettes comprend un bras de roulettes orientables fixé pivotant à un plateau de planche à roulettes ayant un premier axe de pivotement de bogie de planche à roulettes. Le bogie comprend un axe porté par un élément transversal fixé pivotant au bras de roulettes orientables ayant un second axe de pivotement de bogie de planche à roulettes. Le bras de roulettes orientables et l'élément transversal sont accouplés l'un à l'autre pour fournir un pivotement réglable indépendamment du bogie de planche à roulettes autour de deux axes de liberté. Un moyen de verrouillage libérable empêche le bras de roulettes orientables de pivoter autour du premier axe de pivotement pour éventuellement fournir un pivotement classique du bogie de planche à roulettes autour d'un seul axe.
PCT/AU2019/000028 2018-03-01 2019-03-01 Bogie de planches à roulettes Ceased WO2019165493A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2018900666 2018-03-01
AU2018900666A AU2018900666A0 (en) 2018-03-01 A Skateboard Truck

Publications (1)

Publication Number Publication Date
WO2019165493A1 true WO2019165493A1 (fr) 2019-09-06

Family

ID=67804770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2019/000028 Ceased WO2019165493A1 (fr) 2018-03-01 2019-03-01 Bogie de planches à roulettes

Country Status (1)

Country Link
WO (1) WO2019165493A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112846058A (zh) * 2020-12-24 2021-05-28 惠州市朝凰铸件有限公司 一种基于高强韧铝合金滑板支架的新型锻造工艺
IT202200005915A1 (it) * 2022-03-25 2023-09-25 Giulio Contin Attacco per skateboard
JP7574494B1 (ja) * 2024-07-02 2024-10-28 信太郎 二江 スケートボード、及び操舵装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522620A (en) * 1991-03-01 1996-06-04 Pracas; Victor M. Truck for a rideable vehicle, such as a skateboard
US20050051983A1 (en) * 2003-09-09 2005-03-10 Williams Alfred C. Double stacked trucks for skateboards
US20150130154A1 (en) * 2013-11-13 2015-05-14 Dashboards Skimboards Company, Llc Skateboard / Longboard Truck with Improved Mechanical Advantage
US20150265907A1 (en) * 2012-10-02 2015-09-24 Catapult Products, Llc Skateboard truck with dynamic action angle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522620A (en) * 1991-03-01 1996-06-04 Pracas; Victor M. Truck for a rideable vehicle, such as a skateboard
US20050051983A1 (en) * 2003-09-09 2005-03-10 Williams Alfred C. Double stacked trucks for skateboards
US20150265907A1 (en) * 2012-10-02 2015-09-24 Catapult Products, Llc Skateboard truck with dynamic action angle
US20150130154A1 (en) * 2013-11-13 2015-05-14 Dashboards Skimboards Company, Llc Skateboard / Longboard Truck with Improved Mechanical Advantage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112846058A (zh) * 2020-12-24 2021-05-28 惠州市朝凰铸件有限公司 一种基于高强韧铝合金滑板支架的新型锻造工艺
IT202200005915A1 (it) * 2022-03-25 2023-09-25 Giulio Contin Attacco per skateboard
JP7574494B1 (ja) * 2024-07-02 2024-10-28 信太郎 二江 スケートボード、及び操舵装置

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