FR2662610A1 - Improvement for the front steering assembly of a snow bike (skidoo) - Google Patents

Improvement for the front steering assembly of a snow bike (skidoo) Download PDF

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Publication number
FR2662610A1
FR2662610A1 FR9007200A FR9007200A FR2662610A1 FR 2662610 A1 FR2662610 A1 FR 2662610A1 FR 9007200 A FR9007200 A FR 9007200A FR 9007200 A FR9007200 A FR 9007200A FR 2662610 A1 FR2662610 A1 FR 2662610A1
Authority
FR
France
Prior art keywords
snowmobile
type vehicle
lateral bearing
pads
snowmobile type
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.)
Withdrawn
Application number
FR9007200A
Other languages
French (fr)
Inventor
Bibollet Jean-Claude
Original Assignee
Bibollet Jean Claude
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 Bibollet Jean Claude filed Critical Bibollet Jean Claude
Priority to FR9007200A priority Critical patent/FR2662610A1/en
Publication of FR2662610A1 publication Critical patent/FR2662610A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards

Abstract

Vehicle of the snow bike type, consisting of a rear carrier assembly and a front steering assembly, comprising two substantially parallel runners (skids, skates), characterised in that the lower surface of the front part of each of the said runners is extended laterally on the side exterior to the snow bike by a lateral bearing surface extending laterally outwards and upwards. <IMAGE>

Description

PEFECT1ONNEhiEt4T FOR FRONT SET OF DEMOTONEIGE STEERING
The present invention relates to a snowmobile type vehicle. She
relates more particularly to an improvement relating to
front steering assembly.

The type of vehicle mentioned above1 is intended to move on
snow, and comprises, on the one hand a rear carrier assembly, and on the other
share a front steering assembly. Rear carrier assembly
generally comprising the motor intended to actuate the track
propulsion, while the front steering assembly mounted on said
carrier assembly includes two substantially parallel pads that the pilot pivots to steer the snowmobile.

Various patents have already described such devices, as for
example US patents N 3645347, 3817544. 3720421
3871460. The snowmobiles currently on the market are already
relatively safe, but have some drawbacks
like that of having a defective front support, and a very lateral balance
precarious, or even unstable in deep snow, but also and above all
systematically when crossing slopes. Indeed as soon as the
snowmobile begins to tilt, weight transfer to one of the skids
causes it to sink into the snow, and this sink deepens
more and more all the more that this skate is presented more and more on the
edge thus further reducing its bearing surface. The tilting of
the snowmobile is then frequent and fast, and accelerated by the push
oblique support transmitted to the other skate. The movement is then still
faster and more difficult to control when the snowmobile is traveling on a
dammed runway and one of its skates leaves the runway where the snow is
packed and is in uncompressed virgin snow.

The present invention therefore seeks to remedy the aforementioned drawbacks
and offers a snowmobile consisting of a rear carrier assembly and a
front steering assembly comprising two substantially pads
parallel, characterized in that the lower surface of the front part
of each of said pads is extended laterally from the side outside the
snowmobile by a lateral bearing surface extending laterally toward
outside and up. The lateral support surface which can extend
longitudinally from the front end of each of the skates backwards - over at least part of the length of the skate.

According to an additional characteristic, the lateral bearing surface
is a flat, concave or convex inclined surface formed an acute angle
with the ground plane.

The lateral support surface is formed by an appul
lateral integral with the skate, and can be constituted by an independent part fixed to the corresponding skate, or an integral part thereof
Sel has an additional arrangement, the rear end of each of the pads includes a cut out and the front end of each of the pads can be offset inward.

 Note also that the upper edge of the lateral bearing surface may include a projection extending downward, therefore towards the ground, to form an additional attachment element.

 Other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings, which are given only by way of nonlimiting examples.

 Figure 1 is a side view of the snowmobile.

 Figure 2 is a top view.

Figure 3 is a rear perspective view of the two pads
Figure 4 is an enlarged view showing the pads in cross section 111-111.

 Figure 5 shows a shoe in cross section according to an alternative embodiment.

 Figure 6 is a front view of the snowmobile, the skids being cut along a transverse plane in their front zone.

Figures 7 and 8 are schematic bottom views showing two alternative embodiments of the pads
Figures 9a and 9b show an alternative embodiment.

 Figures 1 Oa and 10b are cross sections of a right shoe according to two alternative embodiments.

 Figures 1 la, 1 Ib, 1 lc, show the left shoe according to one embodiment.

 Figure It has is a side view.

 Figure 1 lb is a top view.

 The figure il c is a front view.

 The snowmobile according to the invention consists of a rear carrier assembly (1) and a front steering assembly (2). The snowmobile having a vertical plane (P) of general symmetry is, in a manner known per se, propelled by a track (3). The rear carrier assembly (1) further comprises a seat (4) intended for the pilot and a bodywork (5) intended inter alia for the aesthetics of the machine, as well as for other functions, such as that of protection.

 Front steering assembly (2) consists of a steering column (6) carrying at its upper end a handlebar or the like (7), and at its lower part two pads (8, 8 '), a left pad (and a straight shoe (8 ') substantially parallel arranged symmetrically with respect to the plane (P) of general symmetry and spaced from each other by a distance (d) constituting the front path. Each of the shoes (8, 8') is connected to the rear carrier assembly (1) by a retaining assembly (9, 9 ') To this end, each of the pads is articulated in a manner known per se, about a transverse axis (10) at the end lower of its corresponding set of retainers.

 According to the invention, each skate comprises an external lateral support surface (11, 1 1 ') extending upward and outward of the snowmobile to form a surface inclined relative to the ground (at an angle (a ) open to the outside. This angle of inclination of the surface being between zero and ninety degrees, with the exception of zero and ninety. This angle is advantageously between dlx and seventy degrees, and can for example be forty degrees.

 The inclined lateral support surface is disposed at the front part (13, 13 '), and extends from the point of the shoe (12.12') towards the rear over a more or less long length. Thus, and in other words, the front part of each of the pads is such that its lower sliding surface (14, 14 ′) is extended laterally on the side outside of the snowmobile, by a lateral bearing surface (11, 1 1 ') extending outward (EX) and upward (HA) to form an acute angle (a) with the ground plane (S). This bearing surface extends from the point (12) towards the rear (AR) over a distance (1) more or less long. For example the length (had other substantially equal to half the length (L) but the lateral bearing surface can extend over a greater length (11) as shown in dotted lines in FIG. 3, to extend as far as the rear part of the skate or even up to its rear end.

 FIG. 5 shows a variant according to which the bearing surface is constituted by an independent part (150) fixed on the corresponding pad. for example by screws (150 ').

 Oràce the lateral support surface, and as can be seen in 1- Figure 6, the snowmobile moving on a slope or in a tilting position will find better support on the snow allowing it to avoid sinking more important and to return in case of tilting in a correct position of progression.

 As we have already specified above, it is particularly advantageous to increase the bearing surface of the front of the skate, but also to reduce the bearing surface of the rear part.

 Thus, according to the variant of Figure 7 the rear (16) and particularly its rear end (160) of the shoe comprises a cutout (17).

According to another improvement shown in FIG. 8, the point or front end (12, 12 ′) of each of the pads is offset toward the inside of the snowmobile. This provision makes it possible to avoid the obstacle of obstacles to the maXiRìUn
FIGS. 9a and 9b show a variant according to which the upper edge (110) of the lateral bearing surface comprises a projection 111) extending downwards, therefore towards the ground, in this way forming an additional hooking element .

 According to the embodiments shown previously the lateral bearing surfaces are inclined planar surfaces, but it could be otherwise as shown in Figures 1 Oa and 10b. According to the variant of Figure 10a the lateral bearing surface (11) is convex while according to the variant of Figure 10b the lateral bearing surface (1 1) is concave.

 Increasing the bearing surface of the front part of the skates makes it possible to shift the transverse axis (10) of the skate pivoting with respect to the conventional arrangement of snowmobiles of the prior art. In fact according to the prior art, the transverse axis (10) is such that the part of the shoe in front of said axis has a greater length than the part of the shoe located behind it. On the one hand by increasing the width of the front part of the skate and on the other hand by amputating the rear part, the axis of rotation of the skates is brought closer which will be located in the vicinity of the middle of these, thus reducing the lever arm of the torque resistant to rotation while allowing said skids to plan in deep snow, that is to say to allow the tip of said skid to go up more quickly towards the snow surface thanks to the inclination of said skate.

 Figures iota, il b1 il cl represent the left shoe according to another embodiment, Figure 1a is a side view., Figure 1 lb is a top view, Figure Il c is a front view. according to this embodiment, the lateral bearing surface (I 1,11 ') of each of the pads does not extend from the front end (12) of said pad but only from the corresponding area (140) substantially at the point where the skate is in contact with the snow.

 Of course, the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents and their combinations.

Claims (5)

  1.  i) Snowmobile type vehicle3 consisting of a rear carrier assembly (t) and a front steering assembly (2) comprising two substantially parallel pads (8, 8 '), characterized in that the lower surface (14, 14') of front part (13, 13 ') of each of said pads is extended laterally on the exterior side of the snowmobile by a lateral bearing surface (11, 1 1') extending outward (EX) and upward ( HA).
  2.  2) Snowmobile type vehicle according to claim 1, characterized in that the lateral bearing surface (11, 11 ') extends longitudinally over the front part of each of said skates towards the rear (AR) over at least one part 11) of the length (1 3 of these.
  3.  3) Snowmobile type vehicle according to claim 2, characterized in that the lateral bearing surface (11, Il ') is a flat inclined surface; concave or convex forming an acute angle (a) with the ground plane (S), said acute angle being open towards the outside.
  4.  4) Snowmobile type vehicle according to claim 33 characterized in that the lateral bearing surface is constituted by a lateral bearing piece (15> 15 ') secured to the skate.
     6) 'Snowmobile type vehicle according to claim 4 characterized in that the support piece (15, 15') is an integral part of the corresponding pad.
  5.  5) Snowmobile type vehicle according to claim 4, characterized in that the support piece (15, 15 ') is constituted by an independent piece (150> 150') fixed to the corresponding pad
     7) Snowmobile type vehicle according to any one of the preceding claims, characterized in that the rear end (160,160 ') of each of the pads comprises a cutout (17,17').
     8) Snowmobile type vehicle according to any one of the preceding claims, characterized in that the front end (i 2, 12 ') of each of the pads is offset inwards (IN).
     9) Snowmobile type vehicle according to any one of the preceding claims, characterized in that the upper edge (1 I 0) of the lateral bearing surface comprises a projection (111) extending downwards, therefore towards the ground to form an additional fastening element.
FR9007200A 1990-06-05 1990-06-05 Improvement for the front steering assembly of a snow bike (skidoo) Withdrawn FR2662610A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9007200A FR2662610A1 (en) 1990-06-05 1990-06-05 Improvement for the front steering assembly of a snow bike (skidoo)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9007200A FR2662610A1 (en) 1990-06-05 1990-06-05 Improvement for the front steering assembly of a snow bike (skidoo)

Publications (1)

Publication Number Publication Date
FR2662610A1 true FR2662610A1 (en) 1991-12-06

Family

ID=9397450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9007200A Withdrawn FR2662610A1 (en) 1990-06-05 1990-06-05 Improvement for the front steering assembly of a snow bike (skidoo)

Country Status (1)

Country Link
FR (1) FR2662610A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5836594A (en) * 1992-12-09 1998-11-17 Simmons, Inc. Snowmobile ski
US7311165B2 (en) 2002-06-21 2007-12-25 Starting Line Products, Inc. Snowmobile ski
US8191665B1 (en) 2006-08-09 2012-06-05 Polaris Industries Inc. Snowmobile
US8381857B1 (en) 2006-08-09 2013-02-26 Polaris Industries Inc. Snowmobile
US8641055B2 (en) 2006-03-17 2014-02-04 Verlin M. Simmons Snow machine ski
US9446810B2 (en) 2010-02-08 2016-09-20 Polaris Industries Inc. Snowmobile

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5836594A (en) * 1992-12-09 1998-11-17 Simmons, Inc. Snowmobile ski
US7311165B2 (en) 2002-06-21 2007-12-25 Starting Line Products, Inc. Snowmobile ski
US7841089B2 (en) 2002-06-21 2010-11-30 Starting Line Products, Inc. Methods of manufacturing snowmobile skis
US8915503B2 (en) 2002-06-21 2014-12-23 Starting Line Products, Inc. Snowmobile skis having elongated wing members
US8641055B2 (en) 2006-03-17 2014-02-04 Verlin M. Simmons Snow machine ski
US8191665B1 (en) 2006-08-09 2012-06-05 Polaris Industries Inc. Snowmobile
US8381857B1 (en) 2006-08-09 2013-02-26 Polaris Industries Inc. Snowmobile
US9446810B2 (en) 2010-02-08 2016-09-20 Polaris Industries Inc. Snowmobile
US10035554B2 (en) 2010-02-08 2018-07-31 Polaris Industries Inc. Snowmobile

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