CA1074357A - Wheeled device for practising cross-country skiing - Google Patents
Wheeled device for practising cross-country skiingInfo
- Publication number
- CA1074357A CA1074357A CA254,848A CA254848A CA1074357A CA 1074357 A CA1074357 A CA 1074357A CA 254848 A CA254848 A CA 254848A CA 1074357 A CA1074357 A CA 1074357A
- Authority
- CA
- Canada
- Prior art keywords
- footboard
- thrust element
- ski binding
- binding
- cross
- 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.)
- Expired
Links
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
- A63C5/035—Skis or snowboards with ground engaging rolls or belts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/045—Roller skis
Abstract
ABSTRACT
A known device for practising cross-country skiing has a wheeled footboard, and a "cross-country" type ski binding on the top of the footboard. The improvement is the provision of a thrust element extending along above the footboard and attached thereto at its front end, the rear end with the ski binding being liftable away from the footboard, by pivoting or resilient bending, to permit the leg to be raised from the footboard.
A known device for practising cross-country skiing has a wheeled footboard, and a "cross-country" type ski binding on the top of the footboard. The improvement is the provision of a thrust element extending along above the footboard and attached thereto at its front end, the rear end with the ski binding being liftable away from the footboard, by pivoting or resilient bending, to permit the leg to be raised from the footboard.
Description
This invention relates to an item of sports equipment for practising cross-country skiing, with a footboard, to which a cross-country ski binding is attached, which moves forward along the ground.
To permit summer training for cross-country skiing, a variety of items of sports and training equipment has been developed. These ski-scooters consist basically of a footboard with front and rear wheel assemblies having either one or two wheels. The cross-country ski binding for strapping to a ski boot is attached firmly to each footboard. Ski sticks are also generally used. Although known cross-country ski bindings allow the foot to bend and the heel to be raised, thus permitting long strides, a natural and free skiing movement still cannot be achieved because the lower part of the leg, for instance, cannot be freely swung up to the rear; this is because, firstly, a scooter is difficult to lift up and, secondly, a raised scooter easily goes off course. When this happens, the skiing rhythm is disturbed and the risk of falling is increased. To overcome these shortcom-ings, there is already known a relatively short four-wheel scooter equipped with an extra guiding mechanism pointing to the front.
However, an additional mechanism of this kind makes the equipment complicated and increases the cost. Consequently, only skilled and fit skiers learn to handle those scooters developed up to now.
Ihe object of this invention is therefore to provide a cross-country skiing device permitting improved mobility for the skier but without affecting contact of the device with the ground.
To solve this problem, the item of sports equipment, of the kind described above, is characterised in accordance with the invention in that its binding can be raised from the footboard by means of a thrust element transmitting the necessary thrust and
To permit summer training for cross-country skiing, a variety of items of sports and training equipment has been developed. These ski-scooters consist basically of a footboard with front and rear wheel assemblies having either one or two wheels. The cross-country ski binding for strapping to a ski boot is attached firmly to each footboard. Ski sticks are also generally used. Although known cross-country ski bindings allow the foot to bend and the heel to be raised, thus permitting long strides, a natural and free skiing movement still cannot be achieved because the lower part of the leg, for instance, cannot be freely swung up to the rear; this is because, firstly, a scooter is difficult to lift up and, secondly, a raised scooter easily goes off course. When this happens, the skiing rhythm is disturbed and the risk of falling is increased. To overcome these shortcom-ings, there is already known a relatively short four-wheel scooter equipped with an extra guiding mechanism pointing to the front.
However, an additional mechanism of this kind makes the equipment complicated and increases the cost. Consequently, only skilled and fit skiers learn to handle those scooters developed up to now.
Ihe object of this invention is therefore to provide a cross-country skiing device permitting improved mobility for the skier but without affecting contact of the device with the ground.
To solve this problem, the item of sports equipment, of the kind described above, is characterised in accordance with the invention in that its binding can be raised from the footboard by means of a thrust element transmitting the necessary thrust and
- 2 -which is movable about a point of attachment located some distance in front of this binding.
A binding which can be raised from the device allows the skier to swing each leg upwards in turn, thereby executing a natural skiing movement, without the equipment itself having to lift and lose contact with the ground.
In a particularly simple embodiment, the binding is attached to a rigid pivoting arm in the shape of, for instance, a bar or strip section which can be swung up about an axis mounted on or in the footboard~ or about an articulated hinge. This pivoting arm can be fitted with lateral guide flanges to enable the binding, when it descends onto the footboard, always to be brought back into the correct running position.
In another advantageous embodiment, the thrust element is made of a flat spring rigidly attached at one end to the front of the footboard, while the other end, with the binding, can be swung upwards by virtue of its flexible nature.
The connection between the thrust element and the cheeks of the binding may be effected by riveting, welding or the like.
In a practical construction, the cheek is in one piece with the thrust element, which is particularly advantageous if plastics is used in the manufacture.
To ensure gentle and silent setting down of the cheek of the binding whilst skiing, padded inserts are useful. Front arching of the thrust element can similarly be helpful.
Further details and features of the invention will be apparent from the following description of the embodiments shown in the drawing, wherein:-Fig. 1 is a side view of a ski scooter, with pivoting arm binding in the horizontal position;
Fig. 2 is a side view of the same ski scooter but with the binding in the raised position;
Fig. 3 is a section taken on the line III-III
in Fig. 1, and Fig. 4 is a side view of a ski scooter with a flat spring binding in the raised position.
The ski scooter shown consists of a footboard 1 with a normal cross-country ski binding 2, a front wheel assembly 3 consisting for example of one running wheel, and a rear assembly 4 with ~win wheels. The wheels can be covered by mudguards 5 and 6. At least one of the two wheel assemblies is fitted with a back stop (not shown). The scooter is further equipped with a hinged bracket 8 for the ski sticks for operating a front or rear brake, of which no further details are shown.
In contrast to the known rigid attachment of a binding cheek 10 to the footboard 1, in the version according to Figures 1 and 2, the binding cheek 10 is secured to a pivoting arm 12 in the form of a section of strip. The front end 13 is supported by a rotating axle 15 on or in the footboard 1, and can swing upwards~ In place of the rotating axle 15, an articulated hinge could be used.
The pivoting arm 12 has side flanges 16 (Fig. 3) which guide the strip so that when the strip is moved up and down they always bring the binding back into the correct starting position. The side flanges of such a pivoted arm, which is mainly of U-section, can at the same time be used to form the bearing of the rotating axle. Its surface serves as a support for the binding 2.
The ability to raise the binding 2, as shown in Fig. 2, makes long strides possible, because the lower part of the running leg 20 can be raised backwards with no real impediment, thus achieving a natural flow of movement. On the other hand, the scooter loses neither contact with the ground nor its course.
As in cross-country skiing, diagonal and swing steps can be achieved in the correct skiing rhythm.
The pivoting arm 12 serves as a thrust element for trans-mitting from the skier's leg to the footboard the necessary thrust for the forward movement of the scooter. The thrust element must therefore possess sufficient rigidity. Such rigidity can be found in a flexible pivoting element in the form of a flat spring 22, as shown in Fig. 4. This f at spring requires no specific pivot and can therefore be fixed to the footboard at 29 without a rotating axis. A flat spring lmm thick and 20 to 35 cm long, for example, provides the necessary flexure in this case to raise the foot as well. The flat spring can also be fitted with lateral extensions 26 projecting downwards. However, in order not to impair flexi-bility, these will only be at a few spaced points.
By virtue of the thrust element which characterises the invention, the safety of the skier is not impared; on the contrary, due to the increased mobility of the binding, the risk of injury from falls is greatly reduced.
If it is desired, for specific reasons, to prevent the bind-ing from swinging upwards, this can be achieved by a simple catch or locking device. For instance, a hole can be drilled in the side flanges and in the footboard in which a locking pin (not shown) can be inserted. The same result can be achieved if the footboard and the laterally overlapping cheek of the binding have eyelets into which a locking pin can be inserted.
To soften the impact shock when the binding swings back down onto the footboard, a shock and noise absorbing material such as rubber, felt, foam or a similar substance is provided on the foot-board and/or on the underside of the binding or of the pivoting unit. A gentler setting down of the binding will also be achieved if the thrust element is arched upwards towards the binding (as shown by a broken line in Fig. 4) so that the binding, when not under load, is slightly raised from the footboard in the starting posltion. This can be particularly well achieved with a flexible thrust element.
Finally, to prevent the thrust element, with the binding, from tipping over forwards when making long strides, a suitable catch should preferably be provided for limiting the pivoting movement. A uitable stop can be fitted, for example, at the fulcrum of the pivoting arm.
As the footboard is usually relatively narrow in comparison with the cheek of the binding, shock absorbers mounted laterally on the footboard, apart from serving to absorb noise and shock, also increase the area of support for the binding.
The invention is not limited to the embodiments described.
For example, the pivoting arm can be made from a rod or even from a single sectional bar, instead of from a sectional strip. A
further imporvement in foot mobility can be achieved in certain circumstances by means of an articulated link between the cheek of the binding and the thrust element.
A useful construction is also achieved if the thrust element is formed in the shape, for example, of a pivoting strip extension to the cheek of the binding. This type of constructikn is particularly easily achieved if made of plastics. In this case also the thrust element can be arched upwards. As there are limits to the extent to which a plastics pivoting strip can be flexed, the front fulcrum consists of a hinge or a rotating axis.
The length of the thrust element should preferably be between 20 and 30 _ .
A binding which can be raised from the device allows the skier to swing each leg upwards in turn, thereby executing a natural skiing movement, without the equipment itself having to lift and lose contact with the ground.
In a particularly simple embodiment, the binding is attached to a rigid pivoting arm in the shape of, for instance, a bar or strip section which can be swung up about an axis mounted on or in the footboard~ or about an articulated hinge. This pivoting arm can be fitted with lateral guide flanges to enable the binding, when it descends onto the footboard, always to be brought back into the correct running position.
In another advantageous embodiment, the thrust element is made of a flat spring rigidly attached at one end to the front of the footboard, while the other end, with the binding, can be swung upwards by virtue of its flexible nature.
The connection between the thrust element and the cheeks of the binding may be effected by riveting, welding or the like.
In a practical construction, the cheek is in one piece with the thrust element, which is particularly advantageous if plastics is used in the manufacture.
To ensure gentle and silent setting down of the cheek of the binding whilst skiing, padded inserts are useful. Front arching of the thrust element can similarly be helpful.
Further details and features of the invention will be apparent from the following description of the embodiments shown in the drawing, wherein:-Fig. 1 is a side view of a ski scooter, with pivoting arm binding in the horizontal position;
Fig. 2 is a side view of the same ski scooter but with the binding in the raised position;
Fig. 3 is a section taken on the line III-III
in Fig. 1, and Fig. 4 is a side view of a ski scooter with a flat spring binding in the raised position.
The ski scooter shown consists of a footboard 1 with a normal cross-country ski binding 2, a front wheel assembly 3 consisting for example of one running wheel, and a rear assembly 4 with ~win wheels. The wheels can be covered by mudguards 5 and 6. At least one of the two wheel assemblies is fitted with a back stop (not shown). The scooter is further equipped with a hinged bracket 8 for the ski sticks for operating a front or rear brake, of which no further details are shown.
In contrast to the known rigid attachment of a binding cheek 10 to the footboard 1, in the version according to Figures 1 and 2, the binding cheek 10 is secured to a pivoting arm 12 in the form of a section of strip. The front end 13 is supported by a rotating axle 15 on or in the footboard 1, and can swing upwards~ In place of the rotating axle 15, an articulated hinge could be used.
The pivoting arm 12 has side flanges 16 (Fig. 3) which guide the strip so that when the strip is moved up and down they always bring the binding back into the correct starting position. The side flanges of such a pivoted arm, which is mainly of U-section, can at the same time be used to form the bearing of the rotating axle. Its surface serves as a support for the binding 2.
The ability to raise the binding 2, as shown in Fig. 2, makes long strides possible, because the lower part of the running leg 20 can be raised backwards with no real impediment, thus achieving a natural flow of movement. On the other hand, the scooter loses neither contact with the ground nor its course.
As in cross-country skiing, diagonal and swing steps can be achieved in the correct skiing rhythm.
The pivoting arm 12 serves as a thrust element for trans-mitting from the skier's leg to the footboard the necessary thrust for the forward movement of the scooter. The thrust element must therefore possess sufficient rigidity. Such rigidity can be found in a flexible pivoting element in the form of a flat spring 22, as shown in Fig. 4. This f at spring requires no specific pivot and can therefore be fixed to the footboard at 29 without a rotating axis. A flat spring lmm thick and 20 to 35 cm long, for example, provides the necessary flexure in this case to raise the foot as well. The flat spring can also be fitted with lateral extensions 26 projecting downwards. However, in order not to impair flexi-bility, these will only be at a few spaced points.
By virtue of the thrust element which characterises the invention, the safety of the skier is not impared; on the contrary, due to the increased mobility of the binding, the risk of injury from falls is greatly reduced.
If it is desired, for specific reasons, to prevent the bind-ing from swinging upwards, this can be achieved by a simple catch or locking device. For instance, a hole can be drilled in the side flanges and in the footboard in which a locking pin (not shown) can be inserted. The same result can be achieved if the footboard and the laterally overlapping cheek of the binding have eyelets into which a locking pin can be inserted.
To soften the impact shock when the binding swings back down onto the footboard, a shock and noise absorbing material such as rubber, felt, foam or a similar substance is provided on the foot-board and/or on the underside of the binding or of the pivoting unit. A gentler setting down of the binding will also be achieved if the thrust element is arched upwards towards the binding (as shown by a broken line in Fig. 4) so that the binding, when not under load, is slightly raised from the footboard in the starting posltion. This can be particularly well achieved with a flexible thrust element.
Finally, to prevent the thrust element, with the binding, from tipping over forwards when making long strides, a suitable catch should preferably be provided for limiting the pivoting movement. A uitable stop can be fitted, for example, at the fulcrum of the pivoting arm.
As the footboard is usually relatively narrow in comparison with the cheek of the binding, shock absorbers mounted laterally on the footboard, apart from serving to absorb noise and shock, also increase the area of support for the binding.
The invention is not limited to the embodiments described.
For example, the pivoting arm can be made from a rod or even from a single sectional bar, instead of from a sectional strip. A
further imporvement in foot mobility can be achieved in certain circumstances by means of an articulated link between the cheek of the binding and the thrust element.
A useful construction is also achieved if the thrust element is formed in the shape, for example, of a pivoting strip extension to the cheek of the binding. This type of constructikn is particularly easily achieved if made of plastics. In this case also the thrust element can be arched upwards. As there are limits to the extent to which a plastics pivoting strip can be flexed, the front fulcrum consists of a hinge or a rotating axis.
The length of the thrust element should preferably be between 20 and 30 _ .
Claims (10)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for practising cross-country skiing, comprising a footboard to move forward over the ground on front and rear wheel assemblies, a thrust element disposed longitudinally over the footboard, means coupling a forward end of said thrust element to the footboard, the rearward end of the thrust element being raisable and lowerable with respect to the footboard, and a cross-country ski binding on said thrust element at a position a distance to the rear of the forward end of said element.
2. A device as claimed in claim 1, wherein said coupling means includes a transverse shaft engaged through the footboard and the thrust element.
3. A device as claimed in claim 1, wherein said coupling means is a hinge.
4. A device as claimed in claim 1, wherein said thrust element is a spring blade.
5. A device as claimed in claim 1, wherein said thrust element includes a wall means depending at each lateral edge to embrace the lateral edges of the footboard.
6. A device as claimed in claim 1, wherein said thrust element includes a plurality of longitudinally spaced lugs depending at each lateral edge to embrace the lateral edges of the footboard.
7. A device as claimed in claim 1, wherein the ski binding is relatively movably attached to the thrust element.
8. A device as claimed in claim 1, wherein the thrust element is arched so that in the condition of the closest approach of the ski binding to the footboard, the ski binding remains spaced from the footboard.
9. A device, as claimed in claim 1 wherein the ski binding includes a cheek, and wherein the thrust element is a pivoting strip extension to said cheek.
10. A device, as claimed in claim 9, wherein said pivoting strip extension is arched, such that in the condition of closest approach of the ski binding to the footboard the ski binding remains spaced from the footboard, and wherein the coupling means includes a transverse shaft engaged through the pivoting strip extension and the footboard.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2527611A DE2527611C3 (en) | 1975-06-20 | 1975-06-20 | Roller skis for cross-country skiing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1074357A true CA1074357A (en) | 1980-03-25 |
Family
ID=5949577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA254,848A Expired CA1074357A (en) | 1975-06-20 | 1976-06-15 | Wheeled device for practising cross-country skiing |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT361361B (en) |
| CA (1) | CA1074357A (en) |
| CH (1) | CH608719A5 (en) |
| DE (1) | DE2527611C3 (en) |
| FR (1) | FR2315963A1 (en) |
| GB (1) | GB1520375A (en) |
| NO (1) | NO139591C (en) |
| SE (1) | SE7606723L (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT408952B (en) * | 1996-04-01 | 2002-04-25 | Fancyform Design Engineering | Single-track roller skate or sliding shoe with runners |
| US6082768A (en) * | 1997-04-25 | 2000-07-04 | Jenex, Inc. | Roller ski |
| US7419187B2 (en) | 1997-10-24 | 2008-09-02 | K-2 Corporation | Double klap flex base boot with heel linkage |
| US6666463B2 (en) | 1997-10-24 | 2003-12-23 | K-2 Corporation | Flexing base skate |
| US6082744A (en) * | 1997-10-24 | 2000-07-04 | K-2 Corporation | Double hinged skate |
| US6056299A (en) * | 1999-02-01 | 2000-05-02 | Soo; Mike | Skate base structure |
| US6513815B2 (en) * | 2000-07-18 | 2003-02-04 | Verducci Usa Llc | In-line racing skate propulsion device |
| US6736412B1 (en) | 2000-10-04 | 2004-05-18 | K2 Corporation | Klop skate having pushing and pulling capabilities |
| DE10209592A1 (en) * | 2002-03-05 | 2003-09-18 | Michael Netreba | Training device for langlauf skiing comprises two wheels in line at each end of support to overcome uneven ground |
| AT515975B1 (en) * | 2014-06-30 | 2016-03-15 | Otto Eder | Binding device for roller skis or roller skis |
| DE202015100864U1 (en) | 2015-02-23 | 2015-03-04 | Siegfried Rieckhoff Electronic E.K. | Rollski |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH103240A (en) * | 1923-01-12 | 1924-02-16 | Nationale Delacroixri Corderie | Ski binding. |
| US1801230A (en) * | 1928-12-14 | 1931-04-14 | Fehre Paul | Roller skate |
| FR791593A (en) * | 1935-06-21 | 1935-12-13 | Skate advanced for road circulation and equipment for the use of this skate | |
| CH185999A (en) * | 1936-01-15 | 1936-08-31 | Korger Hans | Running equipment. |
| DE710567C (en) * | 1940-02-27 | 1941-09-17 | Louis Beerli | Ski binding |
| FR1167543A (en) * | 1955-11-17 | 1958-11-26 | New sports vehicle | |
| US3749413A (en) * | 1972-03-03 | 1973-07-31 | J Nicolson | Wheeled ski |
-
1975
- 1975-06-20 DE DE2527611A patent/DE2527611C3/en not_active Expired
-
1976
- 1976-06-09 GB GB23861/76A patent/GB1520375A/en not_active Expired
- 1976-06-14 SE SE7606723A patent/SE7606723L/en not_active Application Discontinuation
- 1976-06-15 CA CA254,848A patent/CA1074357A/en not_active Expired
- 1976-06-17 FR FR7618492A patent/FR2315963A1/en not_active Withdrawn
- 1976-06-18 CH CH767857A patent/CH608719A5/en not_active IP Right Cessation
- 1976-06-18 NO NO762119A patent/NO139591C/en unknown
- 1976-06-18 AT AT444276A patent/AT361361B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2527611B2 (en) | 1980-11-20 |
| CH608719A5 (en) | 1979-01-31 |
| SE7606723L (en) | 1976-12-21 |
| AT361361B (en) | 1981-03-10 |
| GB1520375A (en) | 1978-08-09 |
| NO139591C (en) | 1979-04-18 |
| NO139591B (en) | 1979-01-02 |
| DE2527611A1 (en) | 1976-12-23 |
| DE2527611C3 (en) | 1981-08-27 |
| NO762119L (en) | 1976-12-21 |
| ATA444276A (en) | 1980-07-15 |
| FR2315963A1 (en) | 1977-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4351538A (en) | Spring assisted roller skates | |
| US5503413A (en) | In-line roller skates with suspension | |
| US4943075A (en) | Pair of wheeled skate-skis with brakes usable on most terrains | |
| US4043566A (en) | Skateboard | |
| US5351975A (en) | Sliding apparatus for snow sports | |
| US4168076A (en) | Skateboard with tail brake | |
| US4886298A (en) | Roller ski | |
| CA1094120A (en) | Wheeled steerable coasting vehicle | |
| JP4178111B2 (en) | Snow scooter | |
| CA1074357A (en) | Wheeled device for practising cross-country skiing | |
| US5295701A (en) | In line roller skate assembly having training wheels | |
| US5397137A (en) | Braking device particularly for skates | |
| US4805936A (en) | Wheeled ski | |
| US4145064A (en) | Sled-type vehicles | |
| US4193609A (en) | Ski device | |
| US5439238A (en) | Braking system for in-line roller skates | |
| US6213484B1 (en) | Skateboard with a foot brake | |
| US5909885A (en) | Energized in-line roller skate | |
| JP2002537959A (en) | Roller skates | |
| JPS59500085A (en) | Device for improved control of skis | |
| CA1057050A (en) | Ski boot | |
| CA2151549A1 (en) | Braking system for in-line skates | |
| NO180613B (en) | Sports boot designed for use in sliding sports | |
| US5636855A (en) | Apparatus for modifying the pressure distribution of a ski along its sliding surface | |
| JPH07506980A (en) | Device for changing the pressure distribution of the ski on the running surface and skis equipped with this device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |