CA2406914A1 - Gravity driven lean to steer wheeled vehicle - Google Patents

Gravity driven lean to steer wheeled vehicle Download PDF

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Publication number
CA2406914A1
CA2406914A1 CA 2406914 CA2406914A CA2406914A1 CA 2406914 A1 CA2406914 A1 CA 2406914A1 CA 2406914 CA2406914 CA 2406914 CA 2406914 A CA2406914 A CA 2406914A CA 2406914 A1 CA2406914 A1 CA 2406914A1
Authority
CA
Canada
Prior art keywords
chassis
axle
molded
seat
steer
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
Application number
CA 2406914
Other languages
French (fr)
Inventor
Claude Pj Moreau
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2406914 priority Critical patent/CA2406914A1/en
Priority to CA 2429881 priority patent/CA2429881C/en
Publication of CA2406914A1 publication Critical patent/CA2406914A1/en
Abandoned 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
    • A63C17/01Skateboards
    • A63C17/011Skateboards with steering mechanisms
    • A63C17/012Skateboards 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
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/0026Roller skates used otherwise than standing or sitting on them, e.g. body skates
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/0093Mechanisms transforming leaning into steering through an inclined geometrical axis, e.g. truck
    • 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
    • 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
    • A63C17/014Wheel arrangements
    • A63C17/015Wheel arrangements with wheels arranged in two pairs
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/26Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/28Roller skates; Skate-boards with arrangements for sitting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B15/00Other sledges; Ice boats or sailing sledges
    • B62B15/008Wheeled sledges

Abstract

A gravity driven lean to steer wheeled vehicle (fig 1) for recreational riding and racing, most commonly used on hard packed sloped surfaces.

The vehicle (fig 1) comprises of an extruded aluminum chassis (O1) mounted on two custom axle assemblies (02) with polyurethane wheels (08) one being positioned at the rear of the chassis (01) and one being positioned in between the seat (15) and the front of the chassis (01). An adjustable molded padded seat (15) with raised handgrips (19) is mounted on top of the chassis (01) at a position determined by the operator, given a choice of forward for shorter riders, or back for taller riders. A molded leg rest (10) is bolted to the front of the chassis (01) to support and cradle the rider's legs. The vehicle has polyurethane front (11) and rear (17) bumpers.

The vehicle (fig 1 ) is operated by sitting on the seat (15) with your legs over the leg rest (10). You push off with your hands, and steer by leaning your body to the left for left turns, and to the right for right turns. You stop by placing the heals of your shoes on the ground.

Description

SPECIFICATION
FIELD OF THE INVENTION
This invention relates to a gravity driven lean to steer wheeled vehicle for recreational riding and racing, most commonly used on hard packed sloped surfaces. Most particularly, the invention relates to a durable, stable, easy to maneuver vehicle with an extruded aluminum chassis, molded seat and leg rest, with polyurethane front and rear bumpers, and two custom axle assemblies with four polyurethane wheels. Also the invention relates to a vehicle which is ridden in a seated position with legs cradled on a leg rest, and which is steered by leaning to the left for leil turns, and leaning to the right for right turns. The invention was designed to allow for simple manufacturing of parts and easy assembly, while not jeopardizing the stability, durability, and performance of the vehicle.
DESCRIPTION OF TILE PRIOR ART
Although there are various patents disclosing embodiments for wheeled vehicles and skateboard trucks, the following patents known to the inventor hereof, do not in any manner suggest or teach the Gravity Driven Lean to Steer Wheeled Vehicle disclosed and claimed by the applicant in the instant application for patent.
Patent Application CA 2238468 to Wav. Walton, and Newton discloses a gravity driven steerable wheeled vehicle for recreational use, most particularly on surfaces such as pavement, artificial hard-pack turf, mountain slopes, dirt roads, grass and hard-packed snow. The vehicle has at least (3) but preferably four (4) wheels which may or may not be on independent axles one from the other and which may or may not be each independently shock suspended. There is also a steering mechanism for steering the vehicle and a driver compartment portion for containing a driver of the vehicle in a prone face-down and face-forward position. The vehicle is steerable by the driver from the prone face-down and face-forward position. The vehicle may further have a braking system for slowing or stopping the vehicle and a harness apparatus for harnessing the driver onto and into the vehicle. The gravity driven steerable wheeled vehicle mentioned above is driven in a prone face-down and face forward position. In the description of the preferred embodiments in the 29 of 30'~ paragraph "the weight is approximately 100 pounds; the length is about 70 inches; the width is about 40 inches..."
The above vehicle is driven in a dif~'erent position then the instant gravity driven lean to steer wheeled vehicle, which is driven, in a seated position with legs on a forward positioned leg rest. The above vehicle has a steering mechanism where the instant gravity driven lean to steer wheeled vehicle relies simply on a balanced leaning pressure exerted on the pivoting axle assemblies to turn the vehicle. The above vehicle is complex and heavy, the instant gravity driven lean to steer wheeled vehicle weighs approximately 10 pounds;
the length is about 41'/4 inches; the width is about 17'X2 inches.
Patent Application CA 1073492 to Kimmell. and Mattel. Issued Mar 1 l, 1980 discloses a skateboard truck having a cup-shaped housing with the axis thereof transverse to a mounting plate member secured adjacent the housing opening, the bottom of the housing pivotally secured thereto a trunnion supporting a transversely extending axle and wheel assembly. An annular rubber cushion fits within the cup in alignment with the axis thereof, the inner surface of the cup and the cushion being matingly configured to restrain the cushion from rotating. A member is received within the cushion, the member having diametrically opposed outwardly extending flanges received within splits within the cushion, the member being secured for rotation with the trunnion whereby the surfaces of the flanges apply circumferential compressive forces to the adjacent surfaces of the cushion during pivoting of the trunnion. Means are provided far axially varying the volume or density of the cushion whereby to vary the circumferential compressive forces resulting from pivoting of the trunnian.
The preceding mentioned skateboard truck however very similar in design to the axle assembly being used on the instant gravity driven lean to steer wheeled vehicle; it does not offer the stability, nor the strength required for the instant gravity driven lean to steer wheeled vehicle. Instead of "a member having diametrically opposed outwardly extending flanges received within splits within the cushion, the member being secured for rotation"(see fig 3 / 4 patent application CA1073492), the instant axle assembly relies on a design, where a pivot pin which is cast with the axle in an opposing angle to the tnunnion mount sits in a pivot bushing securing the axle from rotating (see fig 4 section A).
The average skateboard truck axle length is between five (5 ) and seven (7) inches and is generally light in construction to allow for tricks and maneuvering. The instant axle length is ten ( 10) inches and is designed with heavier gussets and a larger shaft diameter, and is designed for stability and strength and has no practical use for skateboards.
The patents noted herein provide information regarding the developments that have taken place in the field of non motorized vehicle technology and skaxeboard trucks. Clearly the Gravity Driven Lean to Steer Wheeled Vehicle provides many advantages over the prior art inventions noted above. Ii is a lightweight vehicle, which is simple in overall design allowing for inexpensive manufacturing and assembly, giving a durable product with a stable and controlled ride.
SAY OF THE INVENTION
The most fundamental objects and advantages of the invention are: 1 ) a gravity driven vehicle, 2) that such a vehicle is maneuvered by leaning in the direction you wish to turn, 3) that such a vehicle has four wheels on two pivoting axles, 4) that such a vehicle is ridden in a seated position, 5) that such a vehicle is stable, 6) that such a vehicle is durable, 7) that such a vehicle is affordable.

A primary object of the invention is to provide a stable, durable, and affordable gravity driven lean to steer wheeled vehicle for recreational riding and racing.
Comprising of an extruded aluminum chassis mounted on two custom axle assemblies with polyurethane wheels one being positioned at the rear of the chassis and one being positioned in between the seat and the front of the chassis. An adjustable molded padded seat with raised handgrips is mounted on the chassis at a position determined by the operator, given a choice of forward for shorter riders, or back for taller riders. A molded padded leg rest is bolted to the front of the chassis to support and cradle the rider's legs. The vehicle also has polyurethane front and rear bumpers.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. l shows a perspective view of the vehicle itemizing the vehicles basic components, illustrating the aluminum chassis, the custom axle assemblies with polyurethane wheels, the adjustable molded padded seat with raised handgrips, the molded leg rest, and the front and rear bumpers.
Fig. 2 shows a plan, side and front view of the vehicle itemizing the vehicles components and listing them as: reference no., description, part no., and quantity. This figure also shows basic dimensions.
Fig. 3 shows a perspective view of the axle assembly itemizing its components.
Fig. 4 shows a plan, front, and sectional side view labeled (Section A) itemizing the axle assemblies components and listing them as: reference no., description, part no., and quantity. This figure also shows basic dimensions.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following is a description of the preferred embodiment of the invention.
In order to most simply and clearly characterize the essential features of the invention reference is made to drawings Fig 1, Fig 2, Fig 3, and Fig 4.
With reference now to Fig 1, and Fig 2 there is illustrated a gravity driven lean to steer wheeled vehicle comprising of an extruded aluminum chassis (O1) mounted on two custom axle assemblies (02) with eight screws (04) sixteen washers (OS) and eight nuts (05). Two polyurethane wheels (08) are sandwiched between two bearings (07) and are fastened to the axles with four nuts (09). The leg rest. ( 10) is mounted integrally with the front bumper ( 11 ) at the front of the vehicle with twa screws ( 12 ) four washers ( 13 ) and two nuts ( 14).
The seat is mounted in either of two positions at the back of the vehicle with three screws ( 12) six washers ( 13) and three nuts ( 14). There will be two unused holes on the side of the the chassis, which can be plugged by two cap plugs ( 16). The back bumper ( 17) is inserted :in the back of the chassis (01 ) and secured with a screw ( 18). Two handgrips ( 19) are slotted and fit over the top edges of the molded seat ( l 5) and are secured with eight screws (20).
The driver of the vehicle is held in place by the molded padded seat and handgrips. The molded padded leg rest having a curved face helps cradle the driver's legs in position on 'the Ieg rest. The custom axle assemblies Fig 3 and Fig 4 are ten inches in width, which ,give needed lateral stability. The chassis is made from 1 '/2 inch x 3 inch x 40 inch long extruded aluminum tube with .120 inch wall thickness and .120 inch radiused corners.
The molded seat may be manufactured with aluminum, molded fiberglass, or plastic.
The seat has closed cell foam laminated to the top surface to provide a cushion.
The handgrips may be manufactured from plastic, polyurethane; or may even be molded as part of the seat.
The molded leg rest may be manufactured with aluminum, molded fiberglass, or plastic.
The leg rest has closed cell foam laminated to the top surface to provide a cushion.
With reference now to Fig 3 and Fig 4 the axle assembly is made of two main components. The base (O1) which is an aluminum casting, and the 5/16 inch diameter x 10 inch wide steel axle cast in aluminum (OS). The two parts are mated together as shown in Fig 4 Section A, with a polyurethane pivot bushing (01 ) inserted in the base.
A 3/8-24 x 2 inch Hex Head Cap Screw (03) inserted through the base {02) with a large polyurethane bushing (04) between the base (O1) and the axle (OS) a smaller polyurethane bushing (06) at the bottom with a cup washer (07) arid a Nylock Nut (08) holding it together.
The amount of stability can be regulated simply by tightening the nut (08) limiting the amount of pivot and turn giving more stability, or by loosening the nut {08) increasing the pivot and turn giving more turning ability.
The preferred size of the vehicle is as follows: the weight is approximately 10 pounds, the length is about 41 '/. inches; the width is about 17 %Z inches; the wheel base is about 24 '/< inches; and the height is about 10 5/16 inches.
It is thought that the present gravity driven Lean to steer wheeled vehicle, used for recreational riding or racing down hard packed sloped surfaces, and many of its outlined advantages is understood from the foregoing description and it will be apparent that various changes may be made in the form, construction and arrangement of the parts thereof without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form herein described being merely a preferred exemplary embodiment thereof.

Claims (7)

1 The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A gravity driven lean to steer wheeled vehicle comprising:
a chassis having a front portion, a rear portion, an underside and a top side;
a molded seat with raised sides and hand grips on said chassis top side configured to give a rider on said seat balance and control;
a molded leg rest on said chassis top front portion helping the rider to keep balance and control;
custom front and rear axle assemblies designed to give stability and control in turning;
means for attaching a custom rear pivoting axle assembly at said chassis underside rear portion;
means for attaching a custom front pivoting axle assembly at said chassis underside front portion;
means for attaching a molded leg rest at said chassis top side front portion;
means for attaching an adjustable molded seat with hand grips at said chassis top side rear portion;
means to adjust said molded seat forward or backward to accommodate rider maintaining the riders center of gravity over the two custom axle assemblies;
2. The gravity driven lean to steer wheeled vehicle according to claim 1 wherein said means lean to steer comprises a front and rear pivoting axle with pivot pins towards the center of the vehicle causing both axles to turn inward when leaned upon causing the vehicle to turn in the same direction of the lean.
3. The gravity driven lean to steer wheeled vehicle according to claim 1 wherein said means a molded seat with raised sides and hand grips on said chassis top side configured to cause a rider on said seat to have balance and control comprises a molded curved seat with sides and hand grips which help keep the rider in position and keeping control of the vehicle by holding on with the hand grips.
4. The gravity driven lean to steer wheeled vehicle according to claim 1 wherein said means a molded leg rest on said chassis top front portion helping the rider to keep balance and control comprises a molded curved leg rest which helps to cradle the riders legs in position and keeping control of the vehicle.
5. The gravity driven lean to steer wheeled vehicle according to claim 1 wherein said means custom front and rear axle assemblies designed to give stability and control in turning comprises of a one inch diameter, ten inch wide reinforced axle for stability. The axle is joined to a base with a bolted assembly consisting of a bolt passing through the base and down from the chassis, a polyurethane bushing being sandwiched between the base and the axle casting, a second polyurethane bushing placed on the underside of the axle casting held in place with a cup washer and a nut. The axle also has a pivot pin recessed at an opposing angle to the said bolt assembly into the base keeping the axle from rotating. By tightening the nut on the said bolt assembly you reduce the pivot and axle rotation, reducing turning. By loosening the nut on the said bolt assembly you increase pivot and axle rotation, increasing turning.
6. The gravity driven lean to steer wheeled vehicle according to claim 1 wherein said means for attaching comprises of a one and a half (1 1/2) inch by three (3) inch extruded aluminum tube representing said chassis being pre-drilled and machined for assembly of parts.
7. The gravity driven lean to steer wheeled vehicle according to claim 1 wherein said means to adjust said molded seat forward or backward to accommodate rider maintaining the riders center of gravity over the two custom axle assemblies comprises of extra holes provided in the chassis allowing positioning of the seat to be adjusted for the rider in order to keep the riders center of gravity balanced over the custom axle assemblies which is critical in maintaining a balanced turn from both said axles.
CA 2406914 2002-10-22 2002-10-22 Gravity driven lean to steer wheeled vehicle Abandoned CA2406914A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA 2406914 CA2406914A1 (en) 2002-10-22 2002-10-22 Gravity driven lean to steer wheeled vehicle
CA 2429881 CA2429881C (en) 2002-10-22 2003-05-28 Gravity driven lean to steer wheeled vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2406914 CA2406914A1 (en) 2002-10-22 2002-10-22 Gravity driven lean to steer wheeled vehicle

Publications (1)

Publication Number Publication Date
CA2406914A1 true CA2406914A1 (en) 2004-04-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2406914 Abandoned CA2406914A1 (en) 2002-10-22 2002-10-22 Gravity driven lean to steer wheeled vehicle

Country Status (1)

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CA (1) CA2406914A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112124407A (en) * 2019-04-13 2020-12-25 关世华 Wooden ox and gliding horse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112124407A (en) * 2019-04-13 2020-12-25 关世华 Wooden ox and gliding horse

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