WO2004002811A1 - Bicyclette a neige - Google Patents

Bicyclette a neige Download PDF

Info

Publication number
WO2004002811A1
WO2004002811A1 PCT/IB2002/004640 IB0204640W WO2004002811A1 WO 2004002811 A1 WO2004002811 A1 WO 2004002811A1 IB 0204640 W IB0204640 W IB 0204640W WO 2004002811 A1 WO2004002811 A1 WO 2004002811A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
drive wheel
snowbike
ground
ski
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.)
Ceased
Application number
PCT/IB2002/004640
Other languages
English (en)
Inventor
Dario Verda
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 AU2002348964A priority Critical patent/AU2002348964A1/en
Publication of WO2004002811A1 publication Critical patent/WO2004002811A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K13/00—Cycles convertible to, or transformable into, other types of cycles or land vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B19/00—Runners for carrying wheeled vehicles to facilitate travel on ice or snow
    • B62B19/02—Runners for carrying wheeled vehicles to facilitate travel on ice or snow attachable to wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M27/00—Propulsion devices for sledges or the like

Definitions

  • the present invention relates to snowbikes, that is bicycles fitted with runners or skis which by means of these members are able to travel freely over snow without sinking into it.
  • traction is provided by a drive wheel driven by pedals: this invention relates particularly to snowbikes fitted with a front ski, a rear ski and a drive wheel fitted to the rear.
  • the inventor of this invention has sought for a solution to the drawbacks described above, and has come up with a bike in which the drive wheel is mounted at the rear, in a position analogous to that of the rear wheels of conventional bicycles, but rests on the ground (or rather on the snow) after passing through a slot formed along the centre line of the rear ski.
  • the assembly made up of the drive wheel and the rear ski thus encounters irregularities and soft areas as a single unit, and the drive wheel is supported by the rear ski which, being the first to encounter them, exerts an appropriate supporting action made possible by its large surface area.
  • the invention has also provided that, in the snowbike of his invention, the rear wheel is connected to the frame in such a way that it is able to rotate with respect to the frame, separating itself from the ground in response to the actuation of suitable means, which will be described later, fixed to the said frame.
  • This arrangement makes it possible to achieve maximum speed when desired during a descent.
  • the subject of the present invention is therefore a snowbike as disclosed in the appended Claim 1.
  • a more detailed description will now be given of a preferred illustrative example, with reference also to the appended figure, which shows it in a perspective view.
  • a mountain bike-type frame 2 is fitted with a front ski 3, which replaces the front wheel, and a rear ski 4, which has a longitudinal slot 6 along its centre line, with the lower part of a rear drive wheel 5 projecting through it.
  • the wheel contacts the ground T after passing through the abovementioned slot 6, the dimensions of which are of course such that its edges- do not interfere with the said drive wheel 5 and thus allow it to move freely.
  • the said rear ski 4 is mounted to the frame 2 via a fork 10 with two blades lOd, 10s connected to the two opposite sides of the rear ski 4.
  • the drive wheel 5 is attached by its axle 5r to the free end of an arm 7 whose other end is hinged about a point P on the frame 2 so as to be able to rotate about it (arrow A).
  • the drive wheel 5 is held down against the ground T by an elastic member 16, which in this particular case is a spring moving in a cylindrical sleeve (a known technique, already adopted on conventional mountain bikes ) .
  • the arm 7 is also provided with means which, when actuated, overcome the resistance of the said elastic member 16 and rotate it (in the anticlockwise direction in the figure) so that the drive wheel 5 is lifted off the ground T.
  • these means consist of a cable 8 mounted on the frame 2 with one end connected to the said arm 7 and the other to a lever 9 mounted on the handlebar 17, of the type currently used for operating the brakes of a conventional bicycle.
  • the drive wheel 5 of the type described thus far is fitted with a conventional friction brake system essentially consisting of two pads 12 acting on the rim and operated by a lever 14 mounted on the handlebar 17 and connected to the said two pads 12 by a cable 13.
  • a snowbike 1 produced in accordance with the present invention is safer and easier to use and allows the slope of the ground to be used to maximum effect to build up greater speed, thus achieving all the inventor's intended objects.
  • a snowbike according to the invention can also be made by fitting to a normal mountain bike frame 2 with a kit consisting of the front and rear skis 3 and 4, mounted as stated to the frame 2, and the drive wheel 5 with the associated arm

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

L'invention concerne une bicyclette à neige (1) qui comprend un cadre (2), un ski avant (3), un ski arrière (4) et une roue d'entraînement arrière (5) reliée au cadre (2) et reposant sur le sol (T). Ladite roue d'entraînement (5) est introduite perpendiculairement dans une fente (6) s'étendant le long d'une ligne centrale du ski arrière (4). Dans cette fente, ladite roue peut tourner librement, et est reliée au cadre (2) par un bras (7), articulé au cadre, qui peut tourner par rapport à un point d'articulation (P) grâce à des moyens d'actionnement (8, 9) fixés audit cadre (2) de manière à lever du sol (T) ladite roue d'entraînement (5).
PCT/IB2002/004640 2002-06-26 2002-11-06 Bicyclette a neige Ceased WO2004002811A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002348964A AU2002348964A1 (en) 2002-06-26 2002-11-06 Snowbike

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1102/02 2002-06-26
CH11022002 2002-06-26

Publications (1)

Publication Number Publication Date
WO2004002811A1 true WO2004002811A1 (fr) 2004-01-08

Family

ID=29783973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/004640 Ceased WO2004002811A1 (fr) 2002-06-26 2002-11-06 Bicyclette a neige

Country Status (2)

Country Link
AU (1) AU2002348964A1 (fr)
WO (1) WO2004002811A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881706A1 (fr) * 2005-02-10 2006-08-11 Pierre Marius Montimart Equipement adaptable sue un velo tout terrain comportant deux skis rigides
US10059362B1 (en) 2016-04-26 2018-08-28 Bombardier Recreational Products Inc. Snowmobile ski assembly
US11814136B2 (en) 2019-08-20 2023-11-14 Polaris Industries Inc. Snow vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US469227A (en) * 1892-02-23 William g
US504625A (en) * 1893-09-05 Ice-velocipede
US1391506A (en) * 1920-08-16 1921-09-20 John H Riley Ice-tractor
DE4340479A1 (de) * 1993-11-27 1995-06-01 Czornik Juergen Dipl Ind Desig Ski Kit für die Montage an muskel- oder motorkraftgetriebenen Zweiradfahrzeugen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US469227A (en) * 1892-02-23 William g
US504625A (en) * 1893-09-05 Ice-velocipede
US1391506A (en) * 1920-08-16 1921-09-20 John H Riley Ice-tractor
DE4340479A1 (de) * 1993-11-27 1995-06-01 Czornik Juergen Dipl Ind Desig Ski Kit für die Montage an muskel- oder motorkraftgetriebenen Zweiradfahrzeugen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881706A1 (fr) * 2005-02-10 2006-08-11 Pierre Marius Montimart Equipement adaptable sue un velo tout terrain comportant deux skis rigides
US10059362B1 (en) 2016-04-26 2018-08-28 Bombardier Recreational Products Inc. Snowmobile ski assembly
US11814136B2 (en) 2019-08-20 2023-11-14 Polaris Industries Inc. Snow vehicle
US12325486B2 (en) 2019-08-20 2025-06-10 Polaris Industries Inc. Snow vehicle

Also Published As

Publication number Publication date
AU2002348964A1 (en) 2004-01-19

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