CA1322380C - Skateboard axle mounting apparatus - Google Patents

Skateboard axle mounting apparatus

Info

Publication number
CA1322380C
CA1322380C CA000600171A CA600171A CA1322380C CA 1322380 C CA1322380 C CA 1322380C CA 000600171 A CA000600171 A CA 000600171A CA 600171 A CA600171 A CA 600171A CA 1322380 C CA1322380 C CA 1322380C
Authority
CA
Canada
Prior art keywords
skateboard
mounting
guide block
axle
anchor
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.)
Expired - Fee Related
Application number
CA000600171A
Other languages
French (fr)
Inventor
Brad T. Kenny
Original Assignee
Brad T. Kenny
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 Brad T. Kenny filed Critical Brad T. Kenny
Priority to CA000600171A priority Critical patent/CA1322380C/en
Application granted granted Critical
Publication of CA1322380C publication Critical patent/CA1322380C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/10Roller skates; Skate-boards with endless tracks
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/01Skateboards

Abstract

SKATEBOARD AXLE MOUNTING APPARATUS
ABSTRACT

A skateboard axle mounting apparatus having a base, a support element attached to the base for securely receiving a skateboard axle, and a mounting bracket for attaching the base to a friction-reducing accessory, such as a snow ski or a roller/belt assembly. The support element includes a guide located on the base and a pair of vertical end plates which slidably cooperate with the guide. Each end plate has a bore hole for securely receiving the skateboard axle. The base includes a graduated scale for use in adjustably aligning the end plates on the guide.

Description

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~KATEBOARD AXL~ MOU~TING APPA~ATU8 FIELD OF THE INVENTION

This invention relates to a skateboard axle mounting apparatus. More particularly, this invention pertains to an apparatus for mounting a friction-reducing accessory, such as a snow ski, ice-runner or a roller/belt assembly t:o a conventional skateboard truck.

BACKGROUND OF THE INVENTION

Several devices are known in the prior art for adapting skateboards for use with slidable accessories, such as snow skis.
For example, United States patent No. 4,161,323 granted to Wetteland on July 17, 1979 discloses a snow ski apparatus that can be removably attached to a standard skateboard truck. The apparatus includes a fore-ski and a rear-ski section which may be connected respectively to the front axle and the rear axle of a skateboard. The ski sections of the resulting ski board can be manipulated by the user in substantially the same manner as the rollers of an ordinary roller skateboard.

European patent No. 0,063,179 dated October 27, 1982 reveals a skateboard having four separate skis or runners attachable to standard skateboard axles. United States patent No. 4,225,145 granted to Carr on September 30, 1980 discloses a modified skateboard having ski runners attachable to the pivotable truck of a conventional skateboard. United States patent No. 4,138,128 and French patent Nos. 2405-722, 2~20-984 and 2423-243 also disclose various apparatuses for attaching slidable ski runners and the like to a standard skateboard frame.

The above noted references have several apparent disadvantages or shortcomings. Most of the prior devices require ., - ; , ,, :-1 ~22~

extensive customized installation. Thus, once installed, these devices can be used only for a relatively limited function, such as snow skiing.

In recent years skateboards of varying axle length have become available which are designed for specific purposes, such as slalom racing or trick skateboarding. However, several of the existing devices which the inventor is aware of are designed for use only with skateboard axles of a predetermined axle length.
This greatly limits the adaptability of su~h devices.

SUMMARY OF THE INVENTION

The subjec-t invention allows the user to easily interchange various accessories by attaching them in a standard manner to a conventional skateboard truck. For example, a skateboard can be easily adapted for use on various terrains such as snow, ice, dirt and grass-covered slopes. The present invention incorporates an ad~ustable skateboard mounting mechanism which is designed to accommodate axles of variable length and which is constructed to better withstand lateral stress than prior devices.

In accordance with the invention, a skateboard axle mounting apparatus is provided having a base, a support element attached to the base for s~curely receiving a skateboard axle, and a mounting bracket for attaching the base to a friction-reducing accessory, such as a snow ski or a roller/belt assembly.
The support element preferably includes a guide located on the base and a pair of vertical end plates adapted to slidably cooperate with the guide. In one embodiment the guide is an elongate block which mates with corresponding slots in the vertical end plates. In alternative embodiments the guide may comprise a slot or a groove in the base which cooperates with a : : ; :.
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2~3~0 fastener or mating protrusion extending downwardly from the end p~ates.

The end plates preferably have bore holes Eor receiving the skateboard axle. ~dvantageo~sly, ~he bore holes may be fitted with sealed roller bearings.

The support element may further incorporate an anchor block mounted on the guide for supporting the pivotable truck of a conventional skateboard. An anchor stud may also be provided for securing the anchor block tG each of the vertical end plates when the axle mounting apparatus is assembled. Fasteners are provided for adjustably fastening the skateboard axle and the anchor stud to the end plates.
Preferably the base also includes a graduated scale for adjustably aligning the end plates at the appropriate position on the guide.

In accordance with one embodiment of the invention, a skateboard axle mounting apparatus for attaching a ground engaging accessory to a skateboard axle is provided which comprises (a) a planar base plate; (b) a guide block extending transversely across the width of the base plate, the guide block having an upper surface, a lower surface and diverging walls extending from the lower surface to the upper surface, thereby providing the guide block with a dove-tail shaped cross-section, the lower surface of the guide block being secured to an upper surface of the base plate; (c) an anchor block attached to the upper surface of the guide block, the anchor block having an anchor stud extending transversely from the opposite sides thereof; (d) a pair of vertical end plates, each end plate having an upper bore hole adapted to receive a respective end of the skateboard axle, a lower bore hole adapted to receive a respect-ive end of the anchor stud, and a dove-tail shaped slot adapted to slidably receive a respective end of the guide block; (e) fastener means for releasably fastening the end plate to a respective end of the skateboard axle and the anchor stud; and (f) mounting means for releasably securing the ground engaging accessory to the base plate.

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BRIEF DESCRIPTION OF THE DRAWINGS

In drawings which illustrate embodiments of the 5 invention/

Figure 1 is a partially exploded, perspective view of the skateboard axle mounting apparatus in conjunction with a conventional skateboard truck and a section of a snow ski.

Figure 2 is a partially exploded, per~pective view of the sXateboard axle mounting apparatus of Figure 1.

Figure 3 is a partially exploded, perspective view of an alternative embodiment of the skateboard mounting apparatus which incorporates a slotted guide means.

Figure 4 is a side elevation view of the skateboard axle mounting apparatus assembled to attach a roller/belt assembly to a conventional skateboard frame.

Figure 5 is a perspective view of the skateboard axle mounting apparatus assembled to attach a roller/belt assembly to a conventional skateboard frame ~3~23~
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to Figure 1, the front end of a standard skateboard is shown with its forward pair of roller wheels removed. Skateboard axle 10 is attached to platfQrm 12 by means of pivotable truck 14. Truck 14 is designed to cause the skateboard to turn to one side or the other when pressure is applied unevenly to the wheels, or other mounted accessories, thus allowing the user to steer the board by leaning his weight to one side or the other.

The present invention is directed to a skateboard axle mounting apparatus generally designated 16 for attaching skateboard truck 14 to a friction-reducing assembly, such as a snow ski 18. Axle mounting apparatus 16 includes a base 20, a guide means 22 attached to base 20, an anchor means 24 attached to guide means 22 and a pair of vertical end plates 26, 28 which may be adjustably secured to guide means 22 and anchor means 24 as discussed below.
As shown in Figure 1, axle mounting apparatus 16 may also include a pair of mounting brackets 30 and 32 for securing base 20 to snow ski 18 or the like. Alternat-vely, base 20 may be mounted on snow ski 18 directly. Base 20 is a solid plate having a plurality of bore holes 34 for use in attaching base 20 to underlying brackets 30, 32 or directly to ski 18. Although base 20 is depicted as being rectangular in the drawings, it may be of any suitable shape and dimension.

Guide means 22 is preferably secured to the upper surface of base 20 along its lateral axis. As shown in Figures 1 and 2, guide means 22 may be a elongate, dovetail-shaped block which is designed to articulate with mating slots 36 in vertical end plates 26, 28. Guide means 22 thereby restricts vertical and longitudinal movement of end plates 26, 28 after they have been slidably fitted onto guide means 22. In other embodiments, guide means 22 may be T-shaped, cylindrical or some other geometric ,, , ~':
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shape which can articulate with end plates 26, 28 in a similar manner~

In the embodiment shown in Figure 3, guide means 22 may comprise one or more slots 59 located on base 20. Slots 59 are designed to receive fasteners ~0 which extend downwardly from end plates 26,28. Alternatively, guide means 22 may comprise one or more notched grooves on base 20 for mating with corresponding protrusions projecting downwardly from end plates 26, 28.

Anchor means 24 is secured to the upper, middle surface of guide means 22. As shown in Figures 1 and 2, anchor means 24 includes a solid anchor block 36 attachable to guide means 22 and a threaded anchor stud 38 extending outwardly from ~ither side of anchor block 36 along the lateral axis of base 20.

End plates 26, 28 are preferably solid plates having bore holes 40 and ~2 therethrough for receiving skateboard axle 10 and anchor stud 38 respectively. Bore holes 40 are fitted with sealed roller bearings to permit free rotation of axle 18 in end plates 26, 28. In the embodiment shown in Fiyures 1 and 2, end plates 26, 28 also include slots 36 for slidably mating with guide means 22 as discussed aboveO

As shown in Figure 2, anchor stud 38 may be maintained in bore hole 42 of end plates 26, 28 by means of lock washers 4~ and nuts 46. Similarly, as shown in Figures 4 and 5, skateboard axle 10 may be maintained in bore hole 40 of end plates 26, 28 by axle nuts 48 which conventionally fasten the roller wheels of the skateboard to axle 10.

Base 20 includes a graduated scale 52 for use in aligning end plates 26, 28 on guide means 22. End plates 26,2~
include alignment markings 54,56 to enable accurate alignment on graduated scale 52. Thus each end plate 26, 28 may be accurately off-set relative to skateboard platform 12 to suit the preference of the user.

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In use, mounting brackets 30, 32 are attached at the desired location on a friction-reducing accessory, such as snow ski 18. Base 20 is then secured to mounting hrackets ~0, 32 such as by inserting suitable fasteners through bore holes 34 in base 20.

The skateboard is prepared for attachment to axle mounting apparatus 16 by removing the roller wheels from skateboard axle 10. As shown in Figure 1, truck 14 is placed above the upper surface of anchor block 36. End plates 26 and 28 are then slidably fitted on to guide means 22; axle 10 and anchor stud 38 are concurrently inserted into bore holes ~o and 42 respectively. Graduated scale 52 and alignment markings 54,56 may be used to align end plates 26 and 28 at the desired location on guide means 22. Nuts 46 and 48 can then be tightened to rigidly secure end plates 26 and 28 to anchor stud 38 and axle 10 respectively, thereby providing lateral support for axle mounting apparatus 16.
The rear skateboard axle is similarly attached to ski 18 to complete the mounting operation.

once skateboard axle mounting apparatus 16 is assembled as aforesaid, the skateboard can then be manipulated by the user for its intended purpose, such as snow skiing. The design of apparatus 16 permits skateboard truck 14 to pivot fully so that the assembled apparatus may be readily steered in the same manner as a conventional roller skateboard. Since apparatus 16 is capable of withstanding a high degree of lateral stress when properly assembled, it provides the user with greater stability and maneuverability khan prior devices.

Axle mounting apparatus 1~ is also very versatile. It may be readily detached from snow ski 18 and used with other friction-reducing accessories, such as ice-runners or roller/belt : ' ',: ' , ~322~
assemblies. Moreover, apparatus 16 may also be conveniently used with other skateboard frames of variable axle length.

Figure 4 shows the present invention in use with a conven-tional skateboard frame (including axle 10, platform 12 and truck 14) and roller/belt assembly 58. Roller/belt assembly 58 permits the skateboard to be used on uneven terrain such as dirt or grass-covered slopes. Figure 5 shows a perspective view of the present invention in use with a skateboard frame and a pair of roller/~elt assemblies 58.

The present invention may be adapted for a wide variety of similar uses. As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.

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Claims (5)

1. A skateboard axle mounting apparatus for attaching a ground engaging accessory to a skateboard axle comprising:

(a) a planar base plate;

(b) a guide block extending transversely across the width of said base plate, said guide block having an upper surface, a lower surface, and diverging walls extending from said lower surface to said upper surface, thereby providing said guide block with a dovetail-shaped cross -section, the lower surface of said guide block being secured to an upper surface of said base plate;

(c) an anchor block attached to the upper surface of said guide block, said anchor block having an anchor stud extending transversely from opposite sides thereof;

(d) a pair of vertical end plates, each end plate having an upper bore hole adapted to receive a respective end of said skateboard axle, a lower bore hole adapted to receive a respective end of said anchor stud, and a dove-tail shaped slot adapted to slidably receive a respective end of said guide block;

(e) fastener means for releasably securing each end plate to a respective end of said skateboard axle and said anchor stud; and (f) mounting means for releasably securing a ground engaging accessory to said base plate.
2. The skateboard axle mounting apparatus as defined in claim 1, wherein said upper bore holes are fitted with sealed roller bearings.
3. The skateboard axle mounting apparatus of claim 1, wherein said mounting means comprises a pair of universal The skateboard axle mounting apparatus of claim 1, wherein said mounting means comprises a pair of universal brackets for use in attaching said base plate to said ground engaging accessory.
4. The skateboard axle mounting apparatus of claim 1, further comprising a graduated scale on said base plate for use in aligning said end plates along said guide means.
5. A skateboard mounting axle apparatus for attaching a ground engaging accessory to a skateboard axle comprising:

(a) a planar base plate integral with an upper surface of said ground engaging accessory;

(b) a guide block extending transversely across the width of said base plate, said guide block having an upper surface, a lower surface, and diverging walls extending from said lower surface to said upper surface, thereby providing said guide block with a dovetail-shaped cross -section, the lower surface of said guide block being secured to an upper surface of said base plate;

(c) an anchor block attached to the upper surface of said guide block, said anchor block having an anchor stud extending transversely from opposite side thereof;

(d) a pair of vertical end plates, each end plate having an upper bore hole adapted to receive a respective end of said skateboard axle, a lower bore hole adapted to receive a respective end of said anchor stud, and a dove-tail shaped slot adapted to slidably receive a respective end of said guide block; and (e) fastener means for releasably securing each end plate to a respective end of said skateboard axle and said anchor stud.
CA000600171A 1989-05-19 1989-05-19 Skateboard axle mounting apparatus Expired - Fee Related CA1322380C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000600171A CA1322380C (en) 1989-05-19 1989-05-19 Skateboard axle mounting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000600171A CA1322380C (en) 1989-05-19 1989-05-19 Skateboard axle mounting apparatus

Publications (1)

Publication Number Publication Date
CA1322380C true CA1322380C (en) 1993-09-21

Family

ID=4140075

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000600171A Expired - Fee Related CA1322380C (en) 1989-05-19 1989-05-19 Skateboard axle mounting apparatus

Country Status (1)

Country Link
CA (1) CA1322380C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006053397A1 (en) 2004-11-19 2006-05-26 Scarpar Pty Ltd Motorised personal transport vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006053397A1 (en) 2004-11-19 2006-05-26 Scarpar Pty Ltd Motorised personal transport vehicle
EP1827625A1 (en) * 2004-11-19 2007-09-05 Scarpar Pty Ltd Motorised personal transport vehicle
EP1827625A4 (en) * 2004-11-19 2009-01-21 Scarpar Pty Ltd Motorised personal transport vehicle
US8210304B2 (en) 2004-11-19 2012-07-03 Scarpar Pty Ltd. Motorized personal transport vehicle

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