CA2496740A1 - Front ski assembly for a snow bicycle - Google Patents
Front ski assembly for a snow bicycle Download PDFInfo
- Publication number
- CA2496740A1 CA2496740A1 CA 2496740 CA2496740A CA2496740A1 CA 2496740 A1 CA2496740 A1 CA 2496740A1 CA 2496740 CA2496740 CA 2496740 CA 2496740 A CA2496740 A CA 2496740A CA 2496740 A1 CA2496740 A1 CA 2496740A1
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- Canada
- Prior art keywords
- clamping
- clamping member
- shaft
- vertical member
- fork
- 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
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Classifications
-
- 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
- B62B19/04—Runners for carrying wheeled vehicles to facilitate travel on ice or snow replacing wheels
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- 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
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- 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
- B62M27/02—Propulsion devices for sledges or the like power driven
- B62M2027/021—Snow bikes resembling conventional motorcycles
Abstract
A front ski assembly for a snow bicycle includes a vertical member having an upper end and a lower end. A lower fork retainer is positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation. The lower fork retainer is adapted to secure a front fork of a bicycle against lateral or vertical movement relative to the vertical member. A ski is pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis. This pivot axis is in parallel spaced relation to the lower fork retainer. An upper fork retainer is positioned at the upper end of the vertical member. The upper fork retainer is adapted to secure the front fork of the bicycle against forward or rearward movement relative to the vertical member.
Description
TITLE OF THE INVENTION:
Front ski assembly for a snow bicycle FIELD OF THE INVENTION
The present invention relates to a ski assembly that attaches to the front forks of a bicycle to convert the bicycle for use on snow.
BACKGROUND OF THE INVENTION
Front ski assemblies for converting bicycles for use on snow are well known.
U.S.
Patents 1,261,204 (Barton 1918) and 1,281,980 (Kostewich 1918) are early examples of bicycles with front ski assemblies. Some more recent examples include U.S.
Patents:
5,423,559 (Rhode 1995); 5,738,361 (Landucci 1998); 6,511,079 (Charles 2003);
6,626,258 (Fortes 2003); and 6,663,117 (Cheney et al 2003).
SUMMARY OF THE INVENTION
According to the present invention there is provided a front ski assembly for a snow bicycle including a vertical member having an upper end and a lower end. A
lower fork retainer is positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation. The lower fork retainer is adapted to secure a 2 0 front fork of a bicycle against lateral or vertical movement relative to the vertical member. A
ski is pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis. This pivot axis is in parallel spaced relation to the lower fork retainer. An upper fork retainer is positioned at the upper end of the vertical member.
The upper fork retainer is adapted to secure the front fork of the bicycle against forward or 2 5 rearward movement relative to the vertical member.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are 30 for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIG. 1 is a rear perspective view of a front ski assembly for a snow bicycle constructed in accordance with the teachings of the present invention.
FIG. 2 is a rear perspective view of the front ski assembly illustrated in FIG.1, engaged with front forks of a bicycle.
FIG. 3 is an enlarged detailed perspective view of the front ski assembly illustrated in FIG. 2.
FIG. 4 through FIG. 7 are top plan views, showing the front ski assembly illustrated in FIG.1 in use with front forks of differing sizes and having differing spacing.
FIG. 8 is a side elevation view of the front ski assembly illustrated in FIG.
2.
FIG. 9 is a side elevation view of the front ski assembly illustrated in FIG.
2, illustrating pivotal movement of the ski.
FIG. 10 is a side elevation view of the vertical member of the front ski assembly illustrated in FIG. 1, with the ski removed.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a front ski assembly generally identified by reference numeral 10, will now be described with reference to FIG.1 through 10.
Structure and Relationship of Parts:
2. Referring to FIG. 1, front ski assembly 10 includes a vertical member 12 2 0 having an upper end 14 and a lower end 16. A top plate 18 is positioned at upper end 14 of vertical member 12. A tower fork retainer clamp, generally indicated by reference numeral 20, is positioned in an intermediate position between upper end 14 and lower end 16 of vertical member 12 in a horizontal orientation. Referring to FIG. 3, lower fork retainer clamp 20 is adapted to clamp a remote end 22 of a front 2 5 fork 24 of a bicycle (entire bicycle not shown) against lateral or vertical movement relative to vertical member 12. Referring to FIG. 1, lower fork retainer clamp 20 has a shaft 26. Referring to FIG. 10, a tubular cross-piece 27 is provided on vertical member 12 to accommodate shaft 26. Referring to FIG. 8, shaft 26 (hidden from view in this illustration) is adapted to engage a slotted opening 28 at remote end 22 of 3 0 front fork 24. Referring to FIG. l, a clamping nut 30 is provided on shaft 26.
Referring to FIG. 2, clamping nut 30 exerts a clamping force upon remote end 22 of front forks 24. Nut 30 which has been illustrated is a quick release nut having a cam locking lever 32. A ski 34 is pivotally secured to lower end 16 of vertical member 12 for pivotal movement about a substantially horizontal pivot axis, identified by reference numeral 36. Pivot axis 36 is in parallel spaced relation to shaft 26 of lower fork retainer clamp 20. Lower end 16 of vertical member 12 has a horizontally positioned shaft 38 and a clamping nut 40 on shaft 38 to exert a clamping force. Nut 40 which has been illustrated is a quick release nut having a cam locking lever 32.
Referring to FIG. 10, a tubular base bracket 41 which accommodates a bushing 43 is provided at second end I 6 of vertical member 12. Bushing 43, in turn, accommodates shaft 38. Referring to FIG. 1, ski 34 has two parallel spaced upwardly projecting plates 42. Plates 42 may be secured directly to ski 34 or may alternatively be part of a bracket which is attached to ski 34. Referring to FIG. 8, plates 42 have a slot 44 with a remote inner end 46. Referring to FIG. 1, slot 44 is adapted to receive shaft 38.
Shaft 38 serves as horizontal pivot axis 36 about which ski 34 pivots. This pivotal movement can best be understood by comparing the positioning of ski 34 in FIG.
with the positioning of ski 34 in FIG. 9. The clamping force of clamping nut against upwardly projecting plates 42 maintains shaft 38 engaged with remote inner end 46 of slot 44 and prevents loss of ski 34 when ski 34 is lifted off the ground.
Referring to FIG. 1, an upper fork retainer clamp, generally identified by reference numeral 50 is positioned at upper end 14 of vertical member 12. Referring to FIG. 3, 2 0 upper fork retainer clamp 50 is adapted to clamp an upper portion 52 of front fork 24 of the bicycle against forward or rearward movement relative to vertical member 12.
Upper fork retainer clamp SO has a first clamping member 54 and a second clamping member 56. One of first clamping member 54 or second clamping member 56 is affixed to the top plate 18. Referring to FIG. 10, top plate 18 has slots 57 to 2 5 accommodate bolts (not shown), which are used to secure either first clamping member 54 or second clamping member 56 to top plate 18. As will hereinafter be described, in order to accommodate some front fork configurations first clamping member 54 is affixed to top plate 18 and for other front fork configurations second clamping member 56 is affixed to top plate 18. Extra versatility is gained due to the 3 0 fact that either one or the other can be affixed. Referring to FIG. 1, both first clamping member 54 and second clamping member 56 have holes 58 by means of which they may be bolted to top plate 18. For the purpose of this description, we will consider that first clamping member 54 has been affixed to top plate 18 by bolts (not shown). This means that second clamping member 56 remains movable. Referring to FIG. 3, a shaft 60 extends through first clamping member 54 and second clamping member 56. Second clamping member 56 travels freely along shaft 60. A clamping 62 is provided on shaft 60 to exert a clamping force to move second clamping member 56 toward first clamping member 54 and maintain second clamping member 56 in a clamping position around upper portion 52 of front forks 24 of the bicycle. As with the previous nuts, nut 62 is illustrated as being a quick release nut with a cam locking lever 32. In order to capture a wide variety of front fork configurations, first clamping member 54 and second clamping member 56 both have outwardly projecting engagement fingers 64, which extend from opposed sides of vertical member 12. The versatility of upper fork retainer clamp 50 can best be understood by a comparison of FIG. 4 through FIG. 7. Upper fork retainer clamp 50 is shown in use clamping different sizes of front forks 24. It must be appreciated that even though front forks produced by two bicycle manufactures, the positioning of the upper portion of the front forks relative to their remote ends can vary. Therefore, even if the front forks were all the same size, the ability to change the configuration of upper fork retainer clamp 50 would provide a huge advantage.
2 0 Operation:
The use and operation of front ski assembly 10 will now be described with reference to FIG. 1 through FIG. 10. Prior to installation of front ski assembly 10 a user removes the front wheel from his bicycle. Referring to FIG. 1, front ski assembly 10 is illustrated as it would appear prior to installation. Referring to FIG. 2, the user commences 2 5 installation by inserting remote end 22 of front forks 24 into lower fork retainer clamp 20.
Nut 30 is then secured to maintain remote end 22 of front forks 24 in position. Lower fork retainer clamp 20 prevents vertical movement of front forks 24 relative to vertical member 12 and prevents side to side movement. Lower fork retainer clamp 20 does not prevent forward and backward movement of forks 24 relative to vertical member 12. Referring to FIG. 3, the 3 0 user then secures upper end 52 of forks 24 against forward and backward movement through the use of upper fork retainer clamp 50. Upper end 52 of forks 24 are positioned against first clamping member 54. Second clamping member 56 is then slid along shaft 60 to a clamping position. Nut 62 is then secured in place to maintain second clamping member 56 in a clamping position. Referring to FIG. 4 through FIG. 7, it can be seen how upper fork retainer clamp can accommodate many different front fork configurations. In order to accommodate some front fork configurations, it may be necessary to bolt second clamping 5 member 56 to top plate 18 and allow first clamping member 54 to become the movable. As first clamping member 54 and second clamping member 56 differ in shape, switching which one is fixed and which one is movable accommodates a wider variety of angular front fork positions. Referring to FIG. 10, slots 57 which receive the bolts to bolt first clamping member 54 or second clamping member 56 to top plate 18, permit some minor adjustments along their length. Referring to FIG. 2, it is preferred that front forks 24 be positioned substantially parallel to vertical member 12. Referring to FIG. 10, top plate 18 is secured to upper end 14 of vertical member 12 in an eccentric fashion. The purpose of the eccentric mounting is to obtain a further range of adjustment by detaching ski 34 and rotating vertical member 12 by 180 degrees. It will be appreciated that by rotating vertical member 12 one can accommodate forwardly angled forks, rearwardly angled forks, in addition to vertical forks which can be accommodated from either rotational position. Once front ski assembly 10 is securely in position, use can commence. Front ski assembly 10 would normally be used with a rear drive assembly, a number of which are illustrated in the prior art.
FIG. 8 and FIG. 9 illustrate how ski 34 is capable of pivoting to accommodate changes in terrain during use.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that 2 5 there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Front ski assembly for a snow bicycle FIELD OF THE INVENTION
The present invention relates to a ski assembly that attaches to the front forks of a bicycle to convert the bicycle for use on snow.
BACKGROUND OF THE INVENTION
Front ski assemblies for converting bicycles for use on snow are well known.
U.S.
Patents 1,261,204 (Barton 1918) and 1,281,980 (Kostewich 1918) are early examples of bicycles with front ski assemblies. Some more recent examples include U.S.
Patents:
5,423,559 (Rhode 1995); 5,738,361 (Landucci 1998); 6,511,079 (Charles 2003);
6,626,258 (Fortes 2003); and 6,663,117 (Cheney et al 2003).
SUMMARY OF THE INVENTION
According to the present invention there is provided a front ski assembly for a snow bicycle including a vertical member having an upper end and a lower end. A
lower fork retainer is positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation. The lower fork retainer is adapted to secure a 2 0 front fork of a bicycle against lateral or vertical movement relative to the vertical member. A
ski is pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis. This pivot axis is in parallel spaced relation to the lower fork retainer. An upper fork retainer is positioned at the upper end of the vertical member.
The upper fork retainer is adapted to secure the front fork of the bicycle against forward or 2 5 rearward movement relative to the vertical member.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are 30 for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIG. 1 is a rear perspective view of a front ski assembly for a snow bicycle constructed in accordance with the teachings of the present invention.
FIG. 2 is a rear perspective view of the front ski assembly illustrated in FIG.1, engaged with front forks of a bicycle.
FIG. 3 is an enlarged detailed perspective view of the front ski assembly illustrated in FIG. 2.
FIG. 4 through FIG. 7 are top plan views, showing the front ski assembly illustrated in FIG.1 in use with front forks of differing sizes and having differing spacing.
FIG. 8 is a side elevation view of the front ski assembly illustrated in FIG.
2.
FIG. 9 is a side elevation view of the front ski assembly illustrated in FIG.
2, illustrating pivotal movement of the ski.
FIG. 10 is a side elevation view of the vertical member of the front ski assembly illustrated in FIG. 1, with the ski removed.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a front ski assembly generally identified by reference numeral 10, will now be described with reference to FIG.1 through 10.
Structure and Relationship of Parts:
2. Referring to FIG. 1, front ski assembly 10 includes a vertical member 12 2 0 having an upper end 14 and a lower end 16. A top plate 18 is positioned at upper end 14 of vertical member 12. A tower fork retainer clamp, generally indicated by reference numeral 20, is positioned in an intermediate position between upper end 14 and lower end 16 of vertical member 12 in a horizontal orientation. Referring to FIG. 3, lower fork retainer clamp 20 is adapted to clamp a remote end 22 of a front 2 5 fork 24 of a bicycle (entire bicycle not shown) against lateral or vertical movement relative to vertical member 12. Referring to FIG. 1, lower fork retainer clamp 20 has a shaft 26. Referring to FIG. 10, a tubular cross-piece 27 is provided on vertical member 12 to accommodate shaft 26. Referring to FIG. 8, shaft 26 (hidden from view in this illustration) is adapted to engage a slotted opening 28 at remote end 22 of 3 0 front fork 24. Referring to FIG. l, a clamping nut 30 is provided on shaft 26.
Referring to FIG. 2, clamping nut 30 exerts a clamping force upon remote end 22 of front forks 24. Nut 30 which has been illustrated is a quick release nut having a cam locking lever 32. A ski 34 is pivotally secured to lower end 16 of vertical member 12 for pivotal movement about a substantially horizontal pivot axis, identified by reference numeral 36. Pivot axis 36 is in parallel spaced relation to shaft 26 of lower fork retainer clamp 20. Lower end 16 of vertical member 12 has a horizontally positioned shaft 38 and a clamping nut 40 on shaft 38 to exert a clamping force. Nut 40 which has been illustrated is a quick release nut having a cam locking lever 32.
Referring to FIG. 10, a tubular base bracket 41 which accommodates a bushing 43 is provided at second end I 6 of vertical member 12. Bushing 43, in turn, accommodates shaft 38. Referring to FIG. 1, ski 34 has two parallel spaced upwardly projecting plates 42. Plates 42 may be secured directly to ski 34 or may alternatively be part of a bracket which is attached to ski 34. Referring to FIG. 8, plates 42 have a slot 44 with a remote inner end 46. Referring to FIG. 1, slot 44 is adapted to receive shaft 38.
Shaft 38 serves as horizontal pivot axis 36 about which ski 34 pivots. This pivotal movement can best be understood by comparing the positioning of ski 34 in FIG.
with the positioning of ski 34 in FIG. 9. The clamping force of clamping nut against upwardly projecting plates 42 maintains shaft 38 engaged with remote inner end 46 of slot 44 and prevents loss of ski 34 when ski 34 is lifted off the ground.
Referring to FIG. 1, an upper fork retainer clamp, generally identified by reference numeral 50 is positioned at upper end 14 of vertical member 12. Referring to FIG. 3, 2 0 upper fork retainer clamp 50 is adapted to clamp an upper portion 52 of front fork 24 of the bicycle against forward or rearward movement relative to vertical member 12.
Upper fork retainer clamp SO has a first clamping member 54 and a second clamping member 56. One of first clamping member 54 or second clamping member 56 is affixed to the top plate 18. Referring to FIG. 10, top plate 18 has slots 57 to 2 5 accommodate bolts (not shown), which are used to secure either first clamping member 54 or second clamping member 56 to top plate 18. As will hereinafter be described, in order to accommodate some front fork configurations first clamping member 54 is affixed to top plate 18 and for other front fork configurations second clamping member 56 is affixed to top plate 18. Extra versatility is gained due to the 3 0 fact that either one or the other can be affixed. Referring to FIG. 1, both first clamping member 54 and second clamping member 56 have holes 58 by means of which they may be bolted to top plate 18. For the purpose of this description, we will consider that first clamping member 54 has been affixed to top plate 18 by bolts (not shown). This means that second clamping member 56 remains movable. Referring to FIG. 3, a shaft 60 extends through first clamping member 54 and second clamping member 56. Second clamping member 56 travels freely along shaft 60. A clamping 62 is provided on shaft 60 to exert a clamping force to move second clamping member 56 toward first clamping member 54 and maintain second clamping member 56 in a clamping position around upper portion 52 of front forks 24 of the bicycle. As with the previous nuts, nut 62 is illustrated as being a quick release nut with a cam locking lever 32. In order to capture a wide variety of front fork configurations, first clamping member 54 and second clamping member 56 both have outwardly projecting engagement fingers 64, which extend from opposed sides of vertical member 12. The versatility of upper fork retainer clamp 50 can best be understood by a comparison of FIG. 4 through FIG. 7. Upper fork retainer clamp 50 is shown in use clamping different sizes of front forks 24. It must be appreciated that even though front forks produced by two bicycle manufactures, the positioning of the upper portion of the front forks relative to their remote ends can vary. Therefore, even if the front forks were all the same size, the ability to change the configuration of upper fork retainer clamp 50 would provide a huge advantage.
2 0 Operation:
The use and operation of front ski assembly 10 will now be described with reference to FIG. 1 through FIG. 10. Prior to installation of front ski assembly 10 a user removes the front wheel from his bicycle. Referring to FIG. 1, front ski assembly 10 is illustrated as it would appear prior to installation. Referring to FIG. 2, the user commences 2 5 installation by inserting remote end 22 of front forks 24 into lower fork retainer clamp 20.
Nut 30 is then secured to maintain remote end 22 of front forks 24 in position. Lower fork retainer clamp 20 prevents vertical movement of front forks 24 relative to vertical member 12 and prevents side to side movement. Lower fork retainer clamp 20 does not prevent forward and backward movement of forks 24 relative to vertical member 12. Referring to FIG. 3, the 3 0 user then secures upper end 52 of forks 24 against forward and backward movement through the use of upper fork retainer clamp 50. Upper end 52 of forks 24 are positioned against first clamping member 54. Second clamping member 56 is then slid along shaft 60 to a clamping position. Nut 62 is then secured in place to maintain second clamping member 56 in a clamping position. Referring to FIG. 4 through FIG. 7, it can be seen how upper fork retainer clamp can accommodate many different front fork configurations. In order to accommodate some front fork configurations, it may be necessary to bolt second clamping 5 member 56 to top plate 18 and allow first clamping member 54 to become the movable. As first clamping member 54 and second clamping member 56 differ in shape, switching which one is fixed and which one is movable accommodates a wider variety of angular front fork positions. Referring to FIG. 10, slots 57 which receive the bolts to bolt first clamping member 54 or second clamping member 56 to top plate 18, permit some minor adjustments along their length. Referring to FIG. 2, it is preferred that front forks 24 be positioned substantially parallel to vertical member 12. Referring to FIG. 10, top plate 18 is secured to upper end 14 of vertical member 12 in an eccentric fashion. The purpose of the eccentric mounting is to obtain a further range of adjustment by detaching ski 34 and rotating vertical member 12 by 180 degrees. It will be appreciated that by rotating vertical member 12 one can accommodate forwardly angled forks, rearwardly angled forks, in addition to vertical forks which can be accommodated from either rotational position. Once front ski assembly 10 is securely in position, use can commence. Front ski assembly 10 would normally be used with a rear drive assembly, a number of which are illustrated in the prior art.
FIG. 8 and FIG. 9 illustrate how ski 34 is capable of pivoting to accommodate changes in terrain during use.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that 2 5 there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims
1. A front ski assembly for a snow bicycle, comprising:
a vertical member having an upper end and a lower end;
a lower fork retainer positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation, the lower fork retainer being adapted to secure a front fork of a bicycle against lateral or vertical movement relative to the vertical member;
a ski pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis, the pivot axis being in parallel spaced relation to the lower fork retainer;
an upper fork retainer positioned at the upper end of the vertical member, the upper fork retainer being adapted to secure the front fork of the bicycle against forward or rearward movement relative to the vertical member.
3. The front ski assembly as defined in Claim 1, wherein the lower fork retainer is a clamp.
4. The front ski assembly as defined in Claim 2, wherein the lower fork retainer clamp has a shaft which is adapted to engage a slotted opening at a remote end of the front fork and a clamping nut which is adapted to engage the shaft to exert a clamping force upon the remote end of the front forks.
5. The front ski assembly as defined in Claim 1, wherein the upper fork retainer is a clamp.
6. The front ski assembly as defined in Claim 4, wherein the upper fork retainer clamp includes including a first clamping member, a second clamping member and means for effecting relative movement of the first clamping member and the second clamping member to assume a clamping position around an upper portion of the front forks of the bicycle.
7. The front ski assembly as defined in Claim 5, wherein the first clamping member and the second clamping member both have outwardly projecting engagement fingers extending from opposed sides of the vertical member.
8. The front ski assembly s defined in Claim 5, wherein a top plate is positioned at the upper end of the vertical member and one of the first clamping member or the second clamping member is affixed to the top plate, while the other of the first clamping member or the second clamping member remains movable, the means for effecting relative movement of the first clamping member and the second clamping member to assume a clamping position around an upper portion of the front forks of the bicycle is a shaft along which at least one of the first clamping member or the second clamping member travels, with a clamping nut on the shaft to exert a clamping force to maintain the first clamping member or the second clamping member in the clamping position.
9. The front ski assembly as defined in Claim 1, wherein the lower end of the vertical member has a horizontally positioned shaft and a clamping nut on the shaft adapted to exert a clamping force, and the ski has two parallel spaced upwardly projecting plates with a slot having a remote inner end, the slot being adapted to receive the shaft such that the shaft serves as the horizontal pivot axis about which the ski pivots with the clamping force of the clamping nut against the upwardly projecting plates maintaining the shaft engaged with the remote inner end of the slot.
10. The front ski assembly as defined in Claim 8, wherein the top plate is eccentrically positioned at the upper end of the vertical member, such that by rotation of the vertical member either forwardly angled front forks or rearwardly angled front forks can be accommodated.
11. The front ski assembly as defined in Claim 8, wherein the top plate has slotted openings adapted to accommodate bolts securing one of the first clamping member or the second clamping member to the top plate.
12. A front ski assembly for a snow bicycle, comprising:
a vertical member having an upper end and a lower end;
a top plate positioned at the upper end of the vertical member;
a lower fork retainer clamp positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation, the lower fork retainer clamp being adapted to clamp a front fork of a bicycle against lateral or vertical movement relative to the vertical member, the lower fork retainer clamp having a shaft which is adapted to engage a slotted opening at a remote end of the front fork and a clamping nut on the shaft which is adapted to exert a clamping force upon the remote end of the front forks;
a ski pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis, the pivot axis being in parallel spaced relation to the lower fork retainer clamp;
an upper fork retainer clamp positioned at the upper end of the vertical member, the upper fork retainer clamp being adapted to clamp an upper portion of the front fork of the bicycle against forward or rearward movement relative to the vertical member, the upper fork retainer clamp having a first clamping member and a second clamping member, one of the first clamping member or the second clamping member being affixed to the top plate, while the other of the first clamping member or the second clamping member remains movable, a shaft extending through the first clamping member and the second clamping member along which at least one of the first clamping member or the second clamping member travels, a clamping nut on the shaft exerting a clamping force to maintain the first clamping member or the second clamping member in a clamping position around an upper portion of the front forks of the bicycle.
13. The front ski assembly as defined in Claim 9, wherein the first clamping member and the second clamping member both have outwardly projecting engagement fingers extending from opposed sides of the vertical member.
14. The front ski assembly as defined in Claim 9, wherein the lower end of the vertical member has a horizontally positioned shaft and a clamping nut on the shaft adapted to exert a clamping force, and the ski has two parallel spaced upwardly projecting plates with a slot having a remote inner end, the slot being adapted to receive the shaft such that the shaft serves as the horizontal pivot axis about which the ski pivots with the clamping force of the clamping nut against the upwardly projecting plates maintaining the shaft engaged with the remote inner end of the slot.
a vertical member having an upper end and a lower end;
a lower fork retainer positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation, the lower fork retainer being adapted to secure a front fork of a bicycle against lateral or vertical movement relative to the vertical member;
a ski pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis, the pivot axis being in parallel spaced relation to the lower fork retainer;
an upper fork retainer positioned at the upper end of the vertical member, the upper fork retainer being adapted to secure the front fork of the bicycle against forward or rearward movement relative to the vertical member.
3. The front ski assembly as defined in Claim 1, wherein the lower fork retainer is a clamp.
4. The front ski assembly as defined in Claim 2, wherein the lower fork retainer clamp has a shaft which is adapted to engage a slotted opening at a remote end of the front fork and a clamping nut which is adapted to engage the shaft to exert a clamping force upon the remote end of the front forks.
5. The front ski assembly as defined in Claim 1, wherein the upper fork retainer is a clamp.
6. The front ski assembly as defined in Claim 4, wherein the upper fork retainer clamp includes including a first clamping member, a second clamping member and means for effecting relative movement of the first clamping member and the second clamping member to assume a clamping position around an upper portion of the front forks of the bicycle.
7. The front ski assembly as defined in Claim 5, wherein the first clamping member and the second clamping member both have outwardly projecting engagement fingers extending from opposed sides of the vertical member.
8. The front ski assembly s defined in Claim 5, wherein a top plate is positioned at the upper end of the vertical member and one of the first clamping member or the second clamping member is affixed to the top plate, while the other of the first clamping member or the second clamping member remains movable, the means for effecting relative movement of the first clamping member and the second clamping member to assume a clamping position around an upper portion of the front forks of the bicycle is a shaft along which at least one of the first clamping member or the second clamping member travels, with a clamping nut on the shaft to exert a clamping force to maintain the first clamping member or the second clamping member in the clamping position.
9. The front ski assembly as defined in Claim 1, wherein the lower end of the vertical member has a horizontally positioned shaft and a clamping nut on the shaft adapted to exert a clamping force, and the ski has two parallel spaced upwardly projecting plates with a slot having a remote inner end, the slot being adapted to receive the shaft such that the shaft serves as the horizontal pivot axis about which the ski pivots with the clamping force of the clamping nut against the upwardly projecting plates maintaining the shaft engaged with the remote inner end of the slot.
10. The front ski assembly as defined in Claim 8, wherein the top plate is eccentrically positioned at the upper end of the vertical member, such that by rotation of the vertical member either forwardly angled front forks or rearwardly angled front forks can be accommodated.
11. The front ski assembly as defined in Claim 8, wherein the top plate has slotted openings adapted to accommodate bolts securing one of the first clamping member or the second clamping member to the top plate.
12. A front ski assembly for a snow bicycle, comprising:
a vertical member having an upper end and a lower end;
a top plate positioned at the upper end of the vertical member;
a lower fork retainer clamp positioned in an intermediate position between the upper end and the lower end of the vertical member in a horizontal orientation, the lower fork retainer clamp being adapted to clamp a front fork of a bicycle against lateral or vertical movement relative to the vertical member, the lower fork retainer clamp having a shaft which is adapted to engage a slotted opening at a remote end of the front fork and a clamping nut on the shaft which is adapted to exert a clamping force upon the remote end of the front forks;
a ski pivotally secured to the lower end of the vertical member for pivotal movement about a substantially horizontal pivot axis, the pivot axis being in parallel spaced relation to the lower fork retainer clamp;
an upper fork retainer clamp positioned at the upper end of the vertical member, the upper fork retainer clamp being adapted to clamp an upper portion of the front fork of the bicycle against forward or rearward movement relative to the vertical member, the upper fork retainer clamp having a first clamping member and a second clamping member, one of the first clamping member or the second clamping member being affixed to the top plate, while the other of the first clamping member or the second clamping member remains movable, a shaft extending through the first clamping member and the second clamping member along which at least one of the first clamping member or the second clamping member travels, a clamping nut on the shaft exerting a clamping force to maintain the first clamping member or the second clamping member in a clamping position around an upper portion of the front forks of the bicycle.
13. The front ski assembly as defined in Claim 9, wherein the first clamping member and the second clamping member both have outwardly projecting engagement fingers extending from opposed sides of the vertical member.
14. The front ski assembly as defined in Claim 9, wherein the lower end of the vertical member has a horizontally positioned shaft and a clamping nut on the shaft adapted to exert a clamping force, and the ski has two parallel spaced upwardly projecting plates with a slot having a remote inner end, the slot being adapted to receive the shaft such that the shaft serves as the horizontal pivot axis about which the ski pivots with the clamping force of the clamping nut against the upwardly projecting plates maintaining the shaft engaged with the remote inner end of the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2496740 CA2496740A1 (en) | 2005-02-09 | 2005-02-09 | Front ski assembly for a snow bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2496740 CA2496740A1 (en) | 2005-02-09 | 2005-02-09 | Front ski assembly for a snow bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2496740A1 true CA2496740A1 (en) | 2006-08-09 |
Family
ID=36791472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2496740 Abandoned CA2496740A1 (en) | 2005-02-09 | 2005-02-09 | Front ski assembly for a snow bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2496740A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020083806A1 (en) * | 2018-10-23 | 2020-04-30 | MK Evol AS | Ski assembly |
-
2005
- 2005-02-09 CA CA 2496740 patent/CA2496740A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020083806A1 (en) * | 2018-10-23 | 2020-04-30 | MK Evol AS | Ski assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |
Effective date: 20130211 |