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US3912031A Expired / Lapsed US ⏱️ 0.0 years remaining

Convertible vehicle for all seasons

Assignee: Individual
•
Filing: 1974-06-14
•
Granted: 1975-10-14
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Expires: 1994-06-14
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Abstract

Abstract A motor cycle type of vehicle having three wide track wheels in line and steerable front and rear wheel assemblies adaptable to be used on a great variety of terrains and easily convertible to a snowmobile by the application of a traction belt on the rear and intermediate wheels and skis replacing the front steering wheel. The rear traction wheel has a novel suspension which permits coupling it with the front steering wheel to facilitate turning of this wide track vehicle and to prevent its tripping over in curves.

Inventors

  • 👤 Leo Goulet

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:23
CPC Classifications
B; B62; B62K; B62K5/00; B62K5/02; B62K5/027; B62D; B62D55/00; B62D55/04; B62D55/06; B62D55/07; B62K13/00; B62K5/08; B62M; B62M27/00; B62M27/02; B62M2027/026

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 560 words
A three wheel in line wide track vehicle of the the motor cycle variety easily convertible to a snow vehicle capable of transporting at least three passengers comprising: a. a torsion resistance elongated rectangular frame b. engine means transversally mounted on said frame and coupled to the rear wheel to effect rotation c. a seat mounted on top of said frame capable of accomodating the driver and other passengers having their legs straddles about the sides of said frame d. three parallel axes transversally suspended from said frame by shock absorbing and dampening means e. a steering mechanism movably mounted on the forward end of said frame and adapted to control the direction of the vehicle f. a rear traction wheel having steerable means coupled to the front steering mechanism g. a rear tracTion wheel having braking means operated from said steering mechanism h. said front steering means including a steering column secured to said frame i. a handle bar rotably carried in said steering column and having steerable means connected to said rear traction wheel j. an intermediate wide track wheel the axle of which is pivotally mounted on the lower frame with vertical guides and shock absorbing and dampening means k. an open rear end frame pivotally connected to the lower tubular frame and suspended from the upper frame by shock absorping and dampening means so to permit said wheel to rise up and down to follow the ground profile l. a pair of open slotted members pivotally suspended from the lower end frame to provide means for varying the angularity of the transversally suspended rear axle to facilitate the turning of the vehicle. m. rear wheel steering means pivotally connected to the rear end frame and the rear wheel axle spherical bearings to effect turning of said wheel n. rear wheel steering means comprising a pair of direction cables attached to a pivoted T bar adjustably connected to the spherical bearing flanges, tie connections and fork rods, said T bar being pivotally connected to the rear end lower frame o. resilient means attached to the direction cable for maintaining tautness p. rear wheel roller chain driving means coupled to the motor transmission sprocket capable of maintaining alignment of said chain with said sprocket independantly of the angularity of said rear wheel q. rear wheel axle comprising two splined telescopic sections, a wheel drum and disc brake attached to the female section, and sprocket driving means attached to the male section r. spherical bearing in which the rear wheel axle sections are rotably suspended and slidably retained in the slotted extended rear end members and bolted to the respective steering flanges s. brake retention means attached to the rear extended member to prevent the rotation of said disc brake t. rear wheel traction chain guiding means attached to the male telescopic shaft spherical bearing flange comprising roller means riding on the face of said sprocket and means to maintain said traction chain in contact with the toothed circonference of said sprocket u. traction chain tightness maintaining means comprising a pair of idlers, one rotably attached to the extended slotted member supporting the main driving sprocket and a displaceable idler rotably suspended from the chain guide so as to maintain tautness with the movement of the sliding spherical bearing due to variation in angular displacement of the rear wheel.
Claim 2
Dependent Claim 560 words
A three wheel in line wide track vehicle of the the motor cycle variety easily convertible to a snow vehicle capable of transporting at least three passengers comprising: a. a torsion resistance elongated rectangular frame b. engine means transversally mounted on said frame and coupled to the rear wheel to effect rotation c. a seat mounted on top of said frame capable of accomodating the driver and other passengers having their legs straddles about the sides of said frame d. three parallel axes transversally suspended from said frame by shock absorbing and dampening means e. a steering mechanism movably mounted on the forward end of said frame and adapted to control the direction of the vehicle f. a rear traction wheel having steerable means coupled to the front steering mechanism g. a rear tracTion wheel having braking means operated from said steering mechanism h. said front steering means including a steering column secured to said frame i. a handle bar rotably carried in said steering column and having steerable means connected to said rear traction wheel j. an intermediate wide track wheel the axle of which is pivotally mounted on the lower frame with vertical guides and shock absorbing and dampening means k. an open rear end frame pivotally connected to the lower tubular frame and suspended from the upper frame by shock absorping and dampening means so to permit said wheel to rise up and down to follow the ground profile l. a pair of open slotted members pivotally suspended from the lower end frame to provide means for varying the angularity of the transversally suspended rear axle to facilitate the turning of the vehicle. m. rear wheel steering means pivotally connected to the rear end frame and the rear wheel axle spherical bearings to effect turning of said wheel n. rear wheel steering means comprising a pair of direction cables attached to a pivoted T bar adjustably connected to the spherical bearing flanges, tie connections and fork rods, said T bar being pivotally connected to the rear end lower frame o. resilient means attached to the direction cable for maintaining tautness p. rear wheel roller chain driving means coupled to the motor transmission sprocket capable of maintaining alignment of said chain with said sprocket independantly of the angularity of said rear wheel q. rear wheel axle comprising two splined telescopic sections, a wheel drum and disc brake attached to the female section, and sprocket driving means attached to the male section r. spherical bearing in which the rear wheel axle sections are rotably suspended and slidably retained in the slotted extended rear end members and bolted to the respective steering flanges s. brake retention means attached to the rear extended member to prevent the rotation of said disc brake t. rear wheel traction chain guiding means attached to the male telescopic shaft spherical bearing flange comprising roller means riding on the face of said sprocket and means to maintain said traction chain in contact with the toothed circonference of said sprocket u. traction chain tightness maintaining means comprising a pair of idlers, one rotably attached to the extended slotted member supporting the main driving sprocket and a displaceable idler rotably suspended from the chain guide so as to maintain tautness with the movement of the sliding spherical bearing due to variation in angular displacement of the rear wheel.
Claim 3
Dependent Claim 184 words
Means for converting said three wheel vehicle as per claim 1 into a snow vehicle comprising a. a flexible endless belt trained about the rear traction wheel and the intermediate wheel so that the lower tread portion thereof engages with the ground surface, and means for uncoupling the steering means of said rear traction wheel from the front steering means b. means for locking said rear traction wheel steering means in neutral position c. engine driving means located about midway between the rear end and the intermediate traction wheels comprising a rotable shaft d. toothed sprocket gears means fixed at each end of said engine shaft e. toothed sprocket gears means rotably mounted on the axles of the rear and intermediate wheels connected by driving chains to the engine driving shaft f. a ski or pair of skis positioned ahead of said endless belt and in logitudinal axis therewith g. a ski steering device pivotally attached to said ski or skis including a steering column attached to said frame h. shock absorbing and dampening means mounting said ski or skis to the steering means.
Claim 4
Dependent Claim 237 words
A three wheel convertible vehicle as per claim 2 in which the frame comprises a rigid rectangular construction made of flat bar right and left side upper horizontal elements and a lower right and left siDe tubular horizontal elements secured to the upper part by welded vertical and horizontal flat bar struts. a. a front head tubular element forming a bay for the steering means and said lower frame opened at the rear to receive and pivotally suspend the rear traction wheel b. rear end frame members pivotally suspended on the lower part of the frame and slotted to slidably receive the rear wheel spherical bearings c. the lower and upper horizontal part of the frame having lugs to pivotally receive the intermediate and rear wheel shock absorbing and dampening means d. the lower tubular frame having lugs to pivotally suspend the intermediate wheel axle e. the lower tubular frame having slotted guides welded thereon to pivotally guide up and down the intermediate wheel f. the lower rear end of the tubular frame being terminated by a cross member having lugs welded thereon to pivotally receive the two rear slotted frame members and having lugs to pivotally suspend the rear wheel steering T bar. g. a fuel reservoir straddled and removably fixed to the upper part of the frame h. a body forming sides, front and rear bolted to said upper and lower part of the frame.

References Cited (Backward Citations)

US3193039A Cited
US3521717A Cited
US3638746A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-10-13 1979-04-14 1979-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-10-13 1983-04-14 1983-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-10-13 1987-04-14 1987-10-14 $7700.00 Window Closed / Lapsed

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