EP0091707A1 - Self-propelled unit for propelling a person wearing snow skis along a rising snow path - Google Patents
Self-propelled unit for propelling a person wearing snow skis along a rising snow path Download PDFInfo
- Publication number
- EP0091707A1 EP0091707A1 EP83200440A EP83200440A EP0091707A1 EP 0091707 A1 EP0091707 A1 EP 0091707A1 EP 83200440 A EP83200440 A EP 83200440A EP 83200440 A EP83200440 A EP 83200440A EP 0091707 A1 EP0091707 A1 EP 0091707A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- self
- propelled unit
- propelled
- snow
- engine
- 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- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/08—Skis or snowboards motor-driven
- A63C5/085—Skis or snowboards motor-driven with rolling or like devices
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C11/00—Accessories for skiing or snowboarding
- A63C11/10—Apparatus for towing skis
Definitions
- This invention relates to a self-propelled unit able to propel a person wearing snow skis along a rising snow path, comprising a frame, rolling means for the movement of the self-propelled unit along the snow, an engine for driving the rolling means, a transmission which connects the engine to the rolling means, and engine control means.
- Self-propelled units of the aforesaid type for use by a skier in overcoming a rising path are already available commercially.
- the types proposed up to the present time are however in the form of actual vehicles of considerable weight and overall size, and of high cost.
- the main characteristic of the self-propelled unit according to the invention is that it is of such dimensions and weight as to be portable, and that said self-propelled unit is also provided with means for its releasable connection to the skis and sticks of the skier, said connection means being configured in such a manner that a large part of the skier's weight acts on the self-propelled unit.
- the self-propelled unit according to the invention can be advantageously used by a skier in order to overcome an upward snow path, after which it can be carried on the shoulders and conveyed downhill during the next descent on the skis.
- FIG. 1 shows a skier 1 wearing snow skis 2 during upward movement. This movement is obtained by the self-propelled unit according to the present invention, in the manner described in detail hereinafter.
- the self-propelled unit is indicated overall by the reference numeral 3. This unit is controlled by the skier by means of a handle 4 connected to the ski sticks 37 and by means of a bundle of flexible cables 5 connected to the unit 3.
- the skier separates the self-propelled unit 3 from the skis 2 and sticks .37 , and straps it as shown at 6 ( Figure 2) by means of straps 38 with which the unit is provided, so that he can carry it on his shoulders during his subsequent descent on the skis.
- said unit comprises a frame 7 (see Figure 5) on which a pair of front wheels 8 and a pair of rear wheels 9 are rotatably mounted.
- the wheels 8, 9 comprise peripheral recesses 10 in which the ends of transverse bars 11 (see Figure 4) forming part of a crawler track 12 engage.
- the self-propelled unit comprises two lateral protection walls 13 screwed to the frame 7 (see Figures 3, 4), and from which there project two lateral supports 31 which are fixed to the frame (see Figures 5, 6).
- the free ends of the brackets 14 each comprise an articulated connection unit 15 (see Figure 3) designed for releasable fixing, for example by means of a bayonet or instant insertion connection, to a corresponding connection plate 16 situated on the rear end of the ski 2.
- Each articulated connection unit 15 enables a support 17 to rotate relative to the bracket 14 about a longitudinal horizontal axis 18, and enables a plate 19 (to be fixed to the plate 16) to rotate relative to the support 17 about a vertical axis.
- the arrow A indicates the direction of movement of the self-propelled unit according to the invention, which as stated heretofore is in the form of a crawler-tracked unit, in the illustrated embodiment.
- An internal combustion engine of small piston displacement is mounted on the frame 7 of the self-propelled unit in a forward position between the two front wheels 8.
- the shaft of the engine 20 is connected to the rear wheels 9, which act as drive wheels, by a transmission including an automatic clutch of known type used for example in mopeds (indicated by 21 in Figure 6).
- an automatic clutch of known type used for example in mopeds (indicated by 21 in Figure 6).
- the clutch 21 controls an automatic variator 23, which is also of known type used for example in mopeds.
- a drum brake 24 (see Figure 7) is mounted on the shaft of the automatic variator 23. This shaft is also connected by a chain transmission 25 to the shaft of the rear wheels 9..
- the reference numeral 26 indicates overall a device for adjusting the crawler track tension.
- the reference numerals 28 and 29 indicate respectively the fuel tank and exhaust silencer of the internal combustion engine.
- the reference numeral 30 indicates a pulley about which a cable is wound for starting the engine (see also Figure 4).
- the handle 4 includes a member for adjusting the engine rotational speed. As the rotational speed increases, the automatic clutch 21 gradually transmits the torque from the engine to the wheels.
- the automatic speed variator 23 sets the optimum transmission ratio at all times in relation to the load conditions and the slope of the path.
- a self-propelled unit of the type heretofore described can enable the skier to overcome ascents up to a maximum slope of 40% at a maximum speed of about 20 km per hour.
- the brake 24 is operated by means of the handle 4.
- direction changes are made by the usual method in skiing, namely shifting the weight of the skier from one ski to the other.
- the articulated connection units 15 enable the skis to be tilted on to their front edge, while the self-contained unit remains in contact with the ground.
- the handle 4 also includes a control for stopping the engine.
- a control for stopping the engine within the principle of the invention, the constructional details and shape embodiments can be widely modified relative to that described and illustrated by way of example, without leaving the scope of the present invention.
- an electric motor could be used instead of an internal combustion engine.
- a self-contained unit comprising for example two crawler-tracked means designed for connection laterally to the skis and arranged to be controlled separately in order to obtain a more precise control of the direction of movement.
- movement along the snow could be obtained by a series of wheels or by one or more rotating propellers which grip the snow surface.
- a crawler track could also be used which does not pass around the entire structure of the machine, but which instead is disposed below said structure.
- the structure could be protected by cover walls.
- the wheels on which the track engages could be rubber wheels instead of toothed wheels.
- the self-propelled unit according to the invention can also be applied in general to vehicles fitted with snow skis or skids in order to propel them.
- the self-propelled unit can be arranged in another manner, for example not directly connected to the skis, so allowing the skier greater freedom of movement.
- the skier can be connected to the self-propelled unit only by way of the skis, so remaining upright and holding not only the sticks but also a handle for controlling the unit, which is connected to it by flexible conductors.
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Abstract
A self-propelled unit (3), usable by a skier for moving along a rising snow path, comprises a frame (7), rolling means (12) for the movement of the self-propelled unit (3) along the snow, an engine (20) for driving the rolling means (12), a transmission (21, 25) which connects the engine (20) to the rolling means (12), and control means (4) for the engine (20). The self-propelled unit (3) is of such dimensions and weight as to be portable. It is also provided with means (14 and 34) for the releasable connection of said frame to the skis (2) and sticks (37) of the skier. Said connection means (14 and 34) are configured in such a manner that a large part of the weight of the skier acts on the self-propelled unit.
Description
- This invention relates to a self-propelled unit able to propel a person wearing snow skis along a rising snow path, comprising a frame, rolling means for the movement of the self-propelled unit along the snow, an engine for driving the rolling means, a transmission which connects the engine to the rolling means, and engine control means.
- Self-propelled units of the aforesaid type for use by a skier in overcoming a rising path are already available commercially. The types proposed up to the present time are however in the form of actual vehicles of considerable weight and overall size, and of high cost.
- The main characteristic of the self-propelled unit according to the invention is that it is of such dimensions and weight as to be portable, and that said self-propelled unit is also provided with means for its releasable connection to the skis and sticks of the skier, said connection means being configured in such a manner that a large part of the skier's weight acts on the self-propelled unit.
- By virtue of these characteristics, the self-propelled unit according to the invention can be advantageously used by a skier in order to overcome an upward snow path, after which it can be carried on the shoulders and conveyed downhill during the next descent on the skis.
- Further characteristics and advantages of the present invention will be apparent from the description given hereinafter with reference to the accompanying drawings provided by way of non-limiting example, in which:
- Figure 1 shows the self-propelled unit according to the invention while in use during the upward movement of the skier,
- Figure 2 shows the skier during his descent, and
- Figures 3 to 7 are perspective views showing a preferred embodiment of the self-propelled unit according to the invention.
- Figure 1 shows a skier 1 wearing
snow skis 2 during upward movement. This movement is obtained by the self-propelled unit according to the present invention, in the manner described in detail hereinafter. In Figure 1, the self-propelled unit is indicated overall by thereference numeral 3. This unit is controlled by the skier by means of ahandle 4 connected to theski sticks 37 and by means of a bundle offlexible cables 5 connected to theunit 3. - At the end of his ascent, the skier separates the self-propelled
unit 3 from theskis 2 and sticks.37, and straps it as shown at 6 (Figure 2) by means ofstraps 38 with which the unit is provided, so that he can carry it on his shoulders during his subsequent descent on the skis. - With reference to Figures 3 to 7, which illustrate a preferred embodiment of the self-propelled unit according to the invention, said unit comprises a frame 7 (see Figure 5) on which a pair of
front wheels 8 and a pair ofrear wheels 9 are rotatably mounted. Thewheels peripheral recesses 10 in which the ends of transverse bars 11 (see Figure 4) forming part of acrawler track 12 engage. - The self-propelled unit comprises two
lateral protection walls 13 screwed to the frame 7 (see Figures 3, 4), and from which there project twolateral supports 31 which are fixed to the frame (see Figures 5, 6). On thesupports 31 there are mounted, rotatable about a transverse axis 32 (see Figures 3, 4), twobrackets 14 projecting frontwards from the self-propelled unit, and the arms of afork 34 which are joined at a plate 39 (see Figure 3) which is designed for rapid releasable fixing, for example by means of a bayonet connector, to both the lower parts of the ski sticks 37 (see Figure 3) so that the sticks are able to swivel about an axis. 33 orthogonal to theaxis 32. The free ends of thebrackets 14 each comprise an articulated connection unit 15 (see Figure 3) designed for releasable fixing, for example by means of a bayonet or instant insertion connection, to acorresponding connection plate 16 situated on the rear end of theski 2. Each articulatedconnection unit 15 enables asupport 17 to rotate relative to thebracket 14 about a longitudinalhorizontal axis 18, and enables a plate 19 (to be fixed to the plate 16) to rotate relative to thesupport 17 about a vertical axis. - Because of this arrangement, when the articulated
connection units 15 are connected to theskis 2, and theplate 39 is connected to thesticks 37, a large part of the skier's weight acts on the self-propelled unit 3 because of the rigid connection constituted by theconnection brackets 14 and support 34, and at the same time theskis 2 andsticks 37 are given the necessary freedom to enable the direction of movement to be controlled and any necessary edging to be undertaken. - On the drawings, the arrow A indicates the direction of movement of the self-propelled unit according to the invention, which as stated heretofore is in the form of a crawler-tracked unit, in the illustrated embodiment.
- An internal combustion engine of small piston displacement, indicated by 20 in Figure 5, is mounted on the
frame 7 of the self-propelled unit in a forward position between the twofront wheels 8. - The shaft of the
engine 20 is connected to therear wheels 9, which act as drive wheels, by a transmission including an automatic clutch of known type used for example in mopeds (indicated by 21 in Figure 6). By means of abelt 22, theclutch 21 controls anautomatic variator 23, which is also of known type used for example in mopeds. - A drum brake 24 (see Figure 7) is mounted on the shaft of the
automatic variator 23. This shaft is also connected by achain transmission 25 to the shaft of therear wheels 9.. - On the drawings, the
reference numeral 26 indicates overall a device for adjusting the crawler track tension. In Figure 5, thereference numerals - Finally, in Figure 6 the
reference numeral 30 indicates a pulley about which a cable is wound for starting the engine (see also Figure 4). - When the skier wishes to ascend, he connects the connection ends of the
brackets 14 to theskis 2 and thecentral part 39 of thesupport 34 to thesticks 37, on which theseat 35 and thecontrol handle 36 are mounted by means of screws, after which he starts theengine 20 by means of thepulley 30. Thehandle 4 includes a member for adjusting the engine rotational speed. As the rotational speed increases, theautomatic clutch 21 gradually transmits the torque from the engine to the wheels. Theautomatic speed variator 23 sets the optimum transmission ratio at all times in relation to the load conditions and the slope of the path. - A self-propelled unit of the type heretofore described can enable the skier to overcome ascents up to a maximum slope of 40% at a maximum speed of about 20 km per hour.
- In order to slow down, the
brake 24 is operated by means of thehandle 4. - In the example heretofore described, direction changes are made by the usual method in skiing, namely shifting the weight of the skier from one ski to the other. Along a path of small slope, the articulated
connection units 15 enable the skis to be tilted on to their front edge, while the self-contained unit remains in contact with the ground. - The
handle 4 also includes a control for stopping the engine. Within the principle of the invention, the constructional details and shape embodiments can be widely modified relative to that described and illustrated by way of example, without leaving the scope of the present invention. - For instance, an electric motor could be used instead of an internal combustion engine.
- It is also possible to provide a self-contained unit comprising for example two crawler-tracked means designed for connection laterally to the skis and arranged to be controlled separately in order to obtain a more precise control of the direction of movement.
- Furthermore, instead of using a crawler track, movement along the snow could be obtained by a series of wheels or by one or more rotating propellers which grip the snow surface.
- A crawler track could also be used which does not pass around the entire structure of the machine, but which instead is disposed below said structure. In this case, the structure could be protected by cover walls. Moreover, the wheels on which the track engages could be rubber wheels instead of toothed wheels.
- Finally, the self-propelled unit according to the invention can also be applied in general to vehicles fitted with snow skis or skids in order to propel them.
- In a further embodiment (not shown), the self-propelled unit can be arranged in another manner, for example not directly connected to the skis, so allowing the skier greater freedom of movement. Alternatively, in a simplified embodiment the skier can be connected to the self-propelled unit only by way of the skis, so remaining upright and holding not only the sticks but also a handle for controlling the unit, which is connected to it by flexible conductors.
Claims (10)
1. A self-propelled unit for propelling a person wearing snow skis along a rising snow path, comprising a frame (7), rolling means (12) for the movement of the self-propelled unit (3) along the snow, an engine (20) for driving the rolling means (12), a transmission (21 to 25) which connects the engine (20) to the rolling means (12), and control means (4) for the engine (20), characterised in that said self-propelled unit is of such dimensions and weight as to be portable, and is provided with means (14) for its releasable connection to the skier's skis (2), said connection means (14) being configured in such a manner that a large part of the weight of the skier acts on said self-propelled unito
2. A self-propelled unit as claimed in claim 1, characterised by being also provided with means (34) for its releasable connection to the ski sticks (37).
3. A self-propelled unit as claimed-in claim 1, characterised in that the engine (20) is an internal combustion engine.
4. A self-propelled unit as claimed in claim 1, characterised in that the rolling means are constituted by a crawler track (12).
5. A self-propelled unit as claimed in claim 1, characterised in that said transmission includes an automatic clutch (21) and an automatic speed variator (23).
6. A self-propelled unit as claimed in claim 1, characterised by comprising a drum brake (24).
7. A self-propelled unit as claimed in claim I, characterised in that the control means comprise a control handle (4) connected by a bundle (5) of flexible cables to the self-propelled unit (3).
8. A self-propelled unit as claimed in claim 1, characterised in that the frame (7) is provided with two lateral brackets (14) projecting forwards and provided at their free ends with articulated connection units (15) for their connection to the skis (2), said articulated connection units (15) being arranged to allow rotation about a longitudinal horizontal axis (18) and about a vertical axis.
9. A self-propelled unit as claimed in claim 2, characterised in ; that the frame (7) is provided with a frontwardly projecting fork (34) connected to a plate (39) for releasable connection to the ski sticks (37), the fork (34) being hinged to the frame (7) on a horizontal axis (32) transverse to the direction of movement, and the ski sticks (37) being able to swivel on the plate (39) about an axis (33) orthogonal to said axis (32) and to the axis of said ski sticks.
10. A self-propelled unit as claimed in claim 3, characterised in that the crawler track (12) includes a series of transverse bars (11), of which the ends engage in the recesses (10) of a pair of front wheels (8) and of a pair of rear wheels (9).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT6749582 | 1982-04-14 | ||
IT67495/82A IT1155528B (en) | 1982-04-14 | 1982-04-14 | SELF-PROPELLED GROUP SUITABLE FOR COMMANDING THE ADVANCE ON A SNOW COVERED ROUTE OF A PERSON WITH SNOW SKIING |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0091707A1 true EP0091707A1 (en) | 1983-10-19 |
Family
ID=11302896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83200440A Withdrawn EP0091707A1 (en) | 1982-04-14 | 1983-03-29 | Self-propelled unit for propelling a person wearing snow skis along a rising snow path |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0091707A1 (en) |
JP (1) | JPS58188477A (en) |
IT (1) | IT1155528B (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126547A (en) * | 1982-09-11 | 1984-03-28 | Iain Sinclair | Propelling apparatus for skiers and skaters |
FR2604367A1 (en) * | 1986-09-26 | 1988-04-01 | Imberteche Rene | Device for electrically assisting the various functions of a universal ski |
GB2246751A (en) * | 1990-07-05 | 1992-02-12 | Frank Cecil Kneale | Rider-supported motor vehicle |
WO2003020381A1 (en) * | 2001-09-01 | 2003-03-13 | Andreas Bockelmann | Vehicle for gliding and rolling sports |
WO2011134047A1 (en) * | 2010-04-29 | 2011-11-03 | Claude Nadeau | Personal propulsion system |
US8453769B2 (en) | 2010-04-15 | 2013-06-04 | Yvon Martel | Compact pulling apparatus |
US8827014B2 (en) | 2010-04-15 | 2014-09-09 | Yvon Martel | Compact pulling apparatus |
US9694859B2 (en) | 2012-10-19 | 2017-07-04 | Yvon Martel | Compact drive unit including juxtaposed tracks |
US9821865B2 (en) | 2010-04-15 | 2017-11-21 | Yvon Martel | Compact pulling apparatus |
CN108704300A (en) * | 2018-05-29 | 2018-10-26 | 哈尔滨体育学院 | A kind of skis with auxiliary power |
EP3592633A4 (en) * | 2017-03-10 | 2021-04-21 | Roshell Industries Incorporated | Tracked personal snow transport system |
US20220316162A1 (en) * | 2021-04-02 | 2022-10-06 | Mary Margaret Sullivan | Power-assisted ski track setter system |
WO2023029456A1 (en) * | 2021-08-30 | 2023-03-09 | 孙寅贵 | Power device for supporting automatic movement of skis |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3568787A (en) * | 1968-01-09 | 1971-03-09 | Henri Gremeret | Tractor for a skier |
US3826323A (en) * | 1973-04-12 | 1974-07-30 | A Mehne | Propelling apparatus for skiers |
FR2431304A1 (en) * | 1978-07-18 | 1980-02-15 | Jaulmes Eric | Outboard motor for propelling skier uphill - has motor surrounded by endless track and arms joined by strap to push user |
-
1982
- 1982-04-14 IT IT67495/82A patent/IT1155528B/en active
-
1983
- 1983-03-29 EP EP83200440A patent/EP0091707A1/en not_active Withdrawn
- 1983-04-14 JP JP58064616A patent/JPS58188477A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3568787A (en) * | 1968-01-09 | 1971-03-09 | Henri Gremeret | Tractor for a skier |
US3826323A (en) * | 1973-04-12 | 1974-07-30 | A Mehne | Propelling apparatus for skiers |
FR2431304A1 (en) * | 1978-07-18 | 1980-02-15 | Jaulmes Eric | Outboard motor for propelling skier uphill - has motor surrounded by endless track and arms joined by strap to push user |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126547A (en) * | 1982-09-11 | 1984-03-28 | Iain Sinclair | Propelling apparatus for skiers and skaters |
FR2604367A1 (en) * | 1986-09-26 | 1988-04-01 | Imberteche Rene | Device for electrically assisting the various functions of a universal ski |
GB2246751A (en) * | 1990-07-05 | 1992-02-12 | Frank Cecil Kneale | Rider-supported motor vehicle |
GB2246751B (en) * | 1990-07-05 | 1994-06-15 | Frank Cecil Kneale | Motorised vehicle |
WO2003020381A1 (en) * | 2001-09-01 | 2003-03-13 | Andreas Bockelmann | Vehicle for gliding and rolling sports |
US8827014B2 (en) | 2010-04-15 | 2014-09-09 | Yvon Martel | Compact pulling apparatus |
US8453769B2 (en) | 2010-04-15 | 2013-06-04 | Yvon Martel | Compact pulling apparatus |
US8528672B2 (en) | 2010-04-15 | 2013-09-10 | Yvon Martel | Compact pulling apparatus |
US9821865B2 (en) | 2010-04-15 | 2017-11-21 | Yvon Martel | Compact pulling apparatus |
WO2011134047A1 (en) * | 2010-04-29 | 2011-11-03 | Claude Nadeau | Personal propulsion system |
US9694859B2 (en) | 2012-10-19 | 2017-07-04 | Yvon Martel | Compact drive unit including juxtaposed tracks |
US9862433B2 (en) | 2012-10-19 | 2018-01-09 | Yvon Martel | Compact drive unit including juxtaposed tracks |
EP3592633A4 (en) * | 2017-03-10 | 2021-04-21 | Roshell Industries Incorporated | Tracked personal snow transport system |
US11154766B2 (en) | 2017-03-10 | 2021-10-26 | Roshell Industries Incorporated | Tracked personal snow transport system |
US11717741B2 (en) | 2017-03-10 | 2023-08-08 | Roshell Industries Incorporated | Tracked personal snow transport system |
CN108704300A (en) * | 2018-05-29 | 2018-10-26 | 哈尔滨体育学院 | A kind of skis with auxiliary power |
US20220316162A1 (en) * | 2021-04-02 | 2022-10-06 | Mary Margaret Sullivan | Power-assisted ski track setter system |
WO2023029456A1 (en) * | 2021-08-30 | 2023-03-09 | 孙寅贵 | Power device for supporting automatic movement of skis |
Also Published As
Publication number | Publication date |
---|---|
IT8267495A0 (en) | 1982-04-14 |
JPS58188477A (en) | 1983-11-02 |
IT1155528B (en) | 1987-01-28 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
Designated state(s): AT CH DE FR GB IT LI NL SE |
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17P | Request for examination filed |
Effective date: 19840411 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19850619 |