# US 2012/0074772 A1 · Drive track for snowmobile or tracked vehicle

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- Number: US 2012/0074772 A1
- Document ID: US20120074772A1
- Status: Published application
- Kind: A1
- Application number: 13/307,816
- Filed: 2011-11-30
- Published: 2012-03-29
- Earliest claimed: 2005-06-02
- Assignees: Camoplast Solideal Inc.
- Inventors: Jules DANDURAND; Denis Courtemanche
- Web page: https://patentgrep.com/patent/US20120074772A1

## CPC

- B62D 55/24: of continuously flexible type, e.g. rubber belts
- B62D 55/06: with tracks without ground wheels
- B62D 55/244: {Moulded in one piece, with either smooth surfaces or surfaces having projections, e.g. incorporating reinforcing elements}
- B62D 55/26: Ground engaging parts or elements {(tracks specially adapted for amphibious vehicles B60F3/0015)}
- B62M 27/02: power driven
- B62M 2027/027: {Snow mobiles characterised by the tracks}
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- B62M: RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general B60K; transmission elements per se F16)

## Abstract

A track formed of a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending longitudinally of the track.

## Claims

### Claim 1

A track for a tracked vehicule, comprising a molded rubber base sandwiching a cord layer and a single layer of ply fabric extending at least in parts longitudinally in the rubber base.

### Claim 2 (depends on 1)

The track of claim 1, wherein said molded rubber base further sandwiches transverse reinforcing member.

### Claim 3 (depends on 2)

The track of claim 2, wherein said reinforcing member is a rod made in a composite material.

### Claim 4 (depends on 2)

The track of claim 2, wherein said reinforcing members are located at spaced intervals along a longitudinal direction of the track beneath profiles projecting from a ground engaging side of the track.

### Claim 5 (depends on 1)

The track of claim 1, wherein said cord layer comprises a dense strand arrangement formed of a twist arrangement of strands.

### Claim 6 (depends on 5)

The track of claim 5, wherein said dense strand arrangement comprises at least 18 strands per inch for a cord of 1.25 mm.

### Claim 7 (depends on 5)

The track of claim 5, wherein said dense strand arrangement comprises high strength, light weight materials.

### Claim 8 (depends on 5)

The track of claim 5, wherein said materials are selected in the group consisting of Kevlar™, nylon, and polyester.

### Claim 9 (depends on 2)

The track of claim 2, wherein said cord layer extends on the rubber base and passes beneath the reinforcing member.

### Claim 10 (depends on 1)

The track of claim 1, wherein said cord layer is discontinued at locations of the track where idler wheels of the vehicule pass.