EP0087089A2 - Device for preventing lateral slipping while driving a ski - Google Patents

Device for preventing lateral slipping while driving a ski Download PDF

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Publication number
EP0087089A2
EP0087089A2 EP83101359A EP83101359A EP0087089A2 EP 0087089 A2 EP0087089 A2 EP 0087089A2 EP 83101359 A EP83101359 A EP 83101359A EP 83101359 A EP83101359 A EP 83101359A EP 0087089 A2 EP0087089 A2 EP 0087089A2
Authority
EP
European Patent Office
Prior art keywords
web
ski
edge
flush
tread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83101359A
Other languages
German (de)
French (fr)
Other versions
EP0087089A3 (en
Inventor
Hans Martin
Original Assignee
MARTIN, Hans
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CH105182 priority Critical
Priority to CH1051/82 priority
Application filed by MARTIN, Hans filed Critical MARTIN, Hans
Publication of EP0087089A2 publication Critical patent/EP0087089A2/en
Publication of EP0087089A3 publication Critical patent/EP0087089A3/en
Withdrawn legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/12Ski crampons preventing lateral slipping
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/04Structure of the surface thereof
    • A63C5/048Structure of the surface thereof of the edges
    • A63C5/0485Complementary or supplementary ski edges

Abstract

Such a device has a web (5) attached to the inner side surface (4) of the ski (1), the edge (8) of which is directed towards the roadway (7) and is flush with the level of the running surface (9) of the ski (1) or by a small amount (z). This ensures that the web (5) does not interfere when the ski (1) lies flat on the road (7). However, if the ski (1) is inclined to the roadway (7), the edge (8) with its cutting edge (11) penetrates into the roadway (7) and prevents slipping on an icy roadway (7).

Description

  • The invention relates to a device for non-skid guidance of a ski on a hard-pressed or icy road, which device has at least one web attached to the side of the ski, which extends over a part of the inner side surface of the ski that is in the region of the ski binding.
  • The skis used in many known designs have a tread on the carriageway, on the longitudinal edges of which hard metal strips are arranged as ski edges, which above all protect the highly stressed longitudinal edge. In addition, such ski edges also offer protection against lateral slipping. However, this protection is not guaranteed on hard-pressed or icy ski slopes, especially on steep slopes. Efforts have therefore not been lacking to ensure protection against lateral slipping, even under extreme driving conditions, without making it difficult or even impossible to guide the ski.
  • In the case of a known ski (CH-PS 609 571), its tread has an essentially convex shape, with projecting edges attached to the long sides, which extend over the binding or ski shoe area. When driving on icy roads, the strongly protruding edges would make normal driving impossible, since the initiation of curves is practically not it is possible.
  • In another known ski (DE-OS 24 17 061) the tread is flat as with normal skis. In the area of the ski binding, a bow-like plate is attached to the ski surface, in which the inner holding bridge protrudes so far that its edge protrudes from the tread. Although the edge that has been pulled down so far can provide good protection against slipping on icy roads, normal driving, in which the direction of travel is changed as required, is no longer possible, since the protruding edge makes it difficult to change the direction of travel.
  • This is where the invention comes in, which is based on the task of designing a ski for non-skid guidance on hard-pressed or icy road surfaces, but a change in the direction of travel is possible in the same way as with normal skis.
  • This object is achieved according to the invention in that the edge of the web directed towards the roadway is at most flush with the plane of the tread of the ski.
  • This means that if the tread is lying smoothly on the road, the skis have no or practically no influence of the additionally arranged web, while when driving with the tread inclined to the road, as is necessary on the slope to prevent slipping, the web in Intervention comes and offers reliable protection against slipping. You can even leave the edge of the bridge facing the road a little behind the plane of the tread of the ski, whereby the effect of the additionally arranged web is further reduced when the tread lies smoothly on the road, while its effect remains practically unchanged when the skis are inclined to the road surface.
  • The invention is shown in the drawing in some exemplary embodiments and described below. Show it
    • 1 shows a side view of the binding area of a partially represented ski with a device according to the invention,
    • 2 shows an enlarged section of the ski according to FIG. 1 along the line II-II,
    • 3 shows an enlarged section according to FIG. 1 along the line III-III, FIGS. 2 and 3 only showing part of the section,
    • 4 shows a further enlarged section of the ski according to FIG. 1 along line IV to illustrate the conditions when the running surface of the ski is inclined to the road surface,
    • 5 shows an enlarged side view of a device according to the invention,
    • 6 shows a side view of a further embodiment of the device according to the invention and
    • 7 shows a section along the line VII - VII in FIG. 6.
  • In Fig. 1, a ski 1 is partially shown, on the surface 2 of a toe-side binding part 3 of a safety ski binding is attached. On the side surface 4, a web 5 is fastened with two screws, the edge of which is directed towards the road 7 and is flush with the running surface 9 of the ski 1.
  • As can be seen from the enlarged partial sections according to FIGS. 2, 3 and 4, the web 5 lies on the side surface 4, but the web 5 could also be inserted flush in the side surface 4. However, the thin-walled web 5, which is drawn too thick in FIGS. 2-4, practically does not contribute to an increase in driving resistance. 2-4 shows a ski edge 10 lying in the tread 9 in the form of a metal strip, which however does not form part of the invention. 2-4, the edge 8 of the web 5 forms a cutting edge 11 which lies on the outside of the web 5 and at a distance from the side surface 4. If the formation of the cutting edge 11 is dispensed with, the beveling of the edge 8 is omitted. Instead of the beveling of the edge 8, a hollow grinding-like edge 8 can also be provided, as is also used in ice skates.
  • In FIG. 2, the cutting edge 11 is flush with the plane of the tread 9, while in FIG. 3 it is set back by a small amount z from this plane. With this reset it is achieved that the web 5 is practically ineffective when the ski lies smooth on the road 7. However, if the tread 9 forms an angle with the road 7, the edge 8 or the cutting edge 11 becomes effective, as can be seen from the greatly enlarged FIG. 4. The web 5 ends in the extended stel development of its cutting edge 11 by the amount z above the tread 9 of the ski 1. Nevertheless, it can be seen without difficulty that the cutting edge 11 can penetrate the road 7 and thus reliably prevent the ski 1 from slipping off. The edge shown in dashed lines in FIG. 4 shows the flush position of the cutting edge 11 with the running surface 9 of the ski 1. It can be seen that in this case the cutting edge 11 penetrates the driving surface 7 earlier, ie with a smaller inclination of the running surface 9 towards the road 7 can.
  • Fig. 5 shows an arrangement in which the web 5 is slidably attached to the side surface 4. For this purpose, the bores 12 in the web 5 have an oval shape, so that after loosening the screws 6 the web 5 can be brought into the flush position with the running surface 9 of the ski. If, on the other hand, the ski is used in soft or freshly fallen snow, the web 5 can be brought back to its previous position according to FIG. 5.
  • 6 and 7 show an embodiment of the device according to the invention, in which the transition of the web 5 from the back to the flush position is effected by the weight of the driver and / or by inertial forces exerted by the driver. For this purpose, the web 5 is provided with oval openings 12 for the shaft of the fastening screws 6, the screw head being located in a likewise oval recess 13 in the web 5. A step 14 is connected to the web 5, which, see FIG. 7, extends at a distance parallel to the ski surface up to the opposite side surface 4. A compression spring 15, for example a leaf spring, as shown in FIG. 7, or a rubber spring is located in the space formed between the ski surface and the step bracket 14. The Compression spring 15 exerts an upward force and holds the web 5 in its previous position, which also does not change when only about half the weight of the skier presses on the kick bar 14. Only when a certain limit force is exceeded, for example when shifting the body weight of the driver onto a ski or when an additional centrifugal force arises when a change of direction is initiated, does the compression spring 15 yield and the web 5 moves downward into the essentially flush position. 6 and 7, the sole 16 of a ski boot is shown schematically, which rests on the step bracket 14 and is otherwise held by the binding part 3 and the heel part, not shown. The movement of the web 5 can be determined either by the size of the oval openings 12 or the oval depressions 13, but it is also possible to omit a limitation of the flush position, so that in extreme stress cases the web 5 extends beyond the level of the tread 9 can extend. During normal travel with corresponding changes in direction, on the other hand, the web 5 remains within the previous and the flush position.
  • In the embodiment according to FIG. 5 and that according to FIGS. 6 and 7, the past position of the web 5 does not in any way need to correspond to the position with the distance z according to FIG. 3, rather this value can be larger, so that with normal the safety Driving no influence of the web 5 is noticeable. In addition, the setting of the web 5 and the choice of the distance z must be determined individually for the individual driver, which can be achieved in that the screw 6 has an eccentric that lies in the circular opening 12 of the web 5 and allows any setting of the value z. The web 5 does not have to be moved over its entire length from the previous to the flush position. It is also possible to use the one screw 6, for example the screw on the back in the direction of travel, as the axis of rotation and to pivot the web 5 about this axis, so that only the front part of the web 5 seen in the direction of travel is displaced into the flush position, 5 by manual adjustment in the embodiment according to FIG. 5 or automatic adjustment in the embodiment according to FIGS. 6 and 7.
  • The edge 8 of the web 5 is subject to a certain amount of wear. The web 5 can, however, be easily removed and the edge 8 reworked. The web 5 as a whole only has to be replaced after it has been reworked several times.
  • The web 5 is expediently only attached to the inner side surfaces 4 of the skis, so that a web 5 is effective with each change of travel on one side or the other.
  • Of course, it is also possible to arrange the web 5 completely or only sunk in the side face 4 in the front side seen in the direction of travel, so that the risk of being attached is thus further reduced or avoided. The recessed arrangement of the web 5, however, requires a corresponding recess in the ski edge 10 lying in the tread 9 and in the side surface 4. The length of the web 5 can also be selected depending on the weight and driving style of the driver. In any case, the skis should be guided safely, including a slight change in the direction of travel during normal driving and, on the other hand, a safe hold of the ski without slipping on icy slopes is understood.
  • The web 5 can be relatively short and cannot exceed the area of the ski binding, i.e. about 40 - 150 mm long. The arrangement of the web 5 in the region of the toe ball or forefoot is particularly expedient. The dimension Z can be about 0.5 to 1.8 mm and the web thickness 1.5 to 3.0 mm.

Claims (9)

1. Device for non-skid guidance of a ski on a hard-pressed or icy lane (7), which device has at least one web (5) attached to the side of the ski (1), which lies over a part of the interior lying in the area of the ski binding (3) Lateral surface (4) of the ski (1), characterized in that the edge (8) of the web (5) directed against the roadway (7) runs at most flush with the plane of the running surface (9) of the ski (1).
2. Device according to claim 1, characterized in that the edge (8) of the web (5) with respect to the plane of the tread (9) lies back by a measure (z).
3. Device according to claim 2, characterized in that the web (5) is displaceable from a previous position into the flush position and back.
4. The device according to claim 1, characterized in that the edge (8) of the web (5) is chamfered such that it forms a cutting edge (11) on the outside.
5. The device according to claim 1 or 4, characterized in that the edge (8) of the web (5) has a concave, hollow-section-like curvature.
6. The device according to claim 3, characterized in that the web (5) under the action of a spring member, e.g. a leaf spring (15) or a rubber spring, which holds the web (5) in the previous position and is arranged on the ski surface (2).
7. The device according to claim 6, characterized in that the web (5) with a, parallel and spaced above the ski surface (2) projecting tread member (14) is connected, on which the body weight of the skier is supported and against that of the spring member (15) presses.
8. The device according to claim 1, characterized in that the web (5) has a length not exceeding the ski binding area.
9. The device according to claim 1, characterized in that the web (5) is arranged in the region of the forefoot.
EP83101359A 1982-02-19 1983-02-12 Device for preventing lateral slipping while driving a ski Withdrawn EP0087089A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH105182 1982-02-19
CH1051/82 1982-02-19

Publications (2)

Publication Number Publication Date
EP0087089A2 true EP0087089A2 (en) 1983-08-31
EP0087089A3 EP0087089A3 (en) 1984-04-11

Family

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Family Applications (1)

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EP83101359A Withdrawn EP0087089A3 (en) 1982-02-19 1983-02-12 Device for preventing lateral slipping while driving a ski

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EP (1) EP0087089A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7390009B2 (en) * 2004-09-02 2008-06-24 Armada Skis, Inc. Ski with replaceable edge
US7445227B2 (en) * 2005-03-16 2008-11-04 Harris Jr Gerald W Ski with improved edging characteristics

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE481575C (en) * 1927-03-19 1929-08-26 Gabriel Froeholm Control device for snowshoes
AT141523B (en) * 1933-02-23 1935-04-25 Max Brunner Edging made of metal or synthetic material for skis and similar sports equipment.
DE685833C (en) * 1938-07-29 1939-12-27 E H Gustav De Grahl Dr Ing operated by the foot of the skier Ruecklaufhemmvorrichtung
CH246021A (en) * 1946-09-09 1946-12-15 Reinhard Willi Ski with protective edges.
FR1368152A (en) * 1963-05-04 1964-07-31 Carre Ski
US3790184A (en) * 1972-12-13 1974-02-05 J Bandrowski Ski construction
DE2417061A1 (en) * 1974-04-08 1975-10-09 Max Jacobs Metal blade along inner edge of downhill ski - is shortened to give a better grip when cornering on ice
DE3040253A1 (en) * 1979-11-12 1981-05-14 Arnold L Wyler Device for influencing the ground contact on skis, especially cross-country skiing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE481575C (en) * 1927-03-19 1929-08-26 Gabriel Froeholm Control device for snowshoes
AT141523B (en) * 1933-02-23 1935-04-25 Max Brunner Edging made of metal or synthetic material for skis and similar sports equipment.
DE685833C (en) * 1938-07-29 1939-12-27 E H Gustav De Grahl Dr Ing operated by the foot of the skier Ruecklaufhemmvorrichtung
CH246021A (en) * 1946-09-09 1946-12-15 Reinhard Willi Ski with protective edges.
FR1368152A (en) * 1963-05-04 1964-07-31 Carre Ski
US3790184A (en) * 1972-12-13 1974-02-05 J Bandrowski Ski construction
DE2417061A1 (en) * 1974-04-08 1975-10-09 Max Jacobs Metal blade along inner edge of downhill ski - is shortened to give a better grip when cornering on ice
DE3040253A1 (en) * 1979-11-12 1981-05-14 Arnold L Wyler Device for influencing the ground contact on skis, especially cross-country skiing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7390009B2 (en) * 2004-09-02 2008-06-24 Armada Skis, Inc. Ski with replaceable edge
US7445227B2 (en) * 2005-03-16 2008-11-04 Harris Jr Gerald W Ski with improved edging characteristics

Also Published As

Publication number Publication date
EP0087089A3 (en) 1984-04-11

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AK Designated contracting states

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17P Request for examination filed

Effective date: 19840706

18D Application deemed to be withdrawn

Effective date: 19850821