WO1991006350A1 - Verfahren zur herstellung eines ski - Google Patents
Verfahren zur herstellung eines ski Download PDFInfo
- Publication number
- WO1991006350A1 WO1991006350A1 PCT/EP1990/001934 EP9001934W WO9106350A1 WO 1991006350 A1 WO1991006350 A1 WO 1991006350A1 EP 9001934 W EP9001934 W EP 9001934W WO 9106350 A1 WO9106350 A1 WO 9106350A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ski
- hollow body
- webs
- forming
- shaped
- Prior art date
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
- A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
- A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness
-
- 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
- A63C5/12—Making thereof; Selection of particular materials
Definitions
- the invention relates to a method for producing a ski from a strand-shaped hollow body.
- ski There are considerable demands on a ski. For example, it should be as light as possible with a high load capacity and torsion capability and have a long service life. To achieve this, many materials and combinations of materials are used for the production of a ski. The disadvantage is accepted that the ski is complicated in construction and therefore requires a lot of effort in production.
- the object of the invention is to create a method for the production of a ski which does not have the disadvantages of the known skis.
- Extruding or the like is brought into an approximately oval shape, then sections of the length of the ski to be produced are separated from this hollow body, then these sections are subjected to a pressure treatment, such as rolling, pressing, pressing or the like, the later the binding-bearing central region of the ski is not or only slightly exposed to the pressure treatment, while the pressure treatment increases with the distance from the central region and finally - as is known per se - to the edges of the lower surface, the sliding surface of the ski, steel profiles are set up.
- the steel profiles can be attached using a plastic that fills all cavities and can also form the sliding surface of the ski.
- the tip of the ski is put on in the same way as before.
- the extruded hollow body is expediently produced by extrusion from a light metal profile. This enables a very precise shaping within narrow tolerances.
- the wall thickness of the strand-shaped hollow body is at least 1 mm in a ski made of aluminum. This gives the ski a low weight without losing torsional rigidity.
- recesses can be provided for the steel profiles. However, after the pressure treatment, recesses for the steel profiles can be milled into the edges of the lower surface of the ski, ground, pressed in or the like, and the steel profiles can then be inserted into these recesses.
- the wedge-shaped spaces above the lugs are filled with plastic, so that kinking or bending of the lugs is excluded. This ensures that the ski always grips well with its edge, even on icy slopes and on steep slopes.
- a stiffening of the ski can be brought about by using webs in the interior of the hollow body distributed at certain intervals over the length of the hollow body, the distance between the webs being approximately 2 to 3 cm from one another in a further development of the invention.
- the possibility of adjusting the elasticity of the ski is created, specifically in that the length of the webs is dimensioned such that its lower end is at a distance from the lower wall of the hollow body forming the ski. The size of the distance determines the elasticity of the ski in this case.
- the aforementioned feature of the invention eliminates a further deficiency of the known skis, which consists in the fact that they are not suitable for every type of snow and every terrain.
- an elastic ski is more suitable for deep snow and soft slopes while on on a hard and icy slope a very stiff ski would be optimal. Since the conditions for skiers in the mountains can change from day to day, a ski that adapts to the elasticity offers considerably more safety and offers more skiing pleasure. Attempts have already been made to produce a ski with variable elasticity, namely this should be possible by tensioning wire ropes provided in the ski. However, the expected effect did not occur, so that this ski could not prevail in practice.
- the ski according to the invention has a flat surface in the region of the binding, which can be formed, for example, by a plate attached to the hollow body forming the ski.
- a further improvement of the method according to the invention is achieved in that a layer of elastic material is provided between a plate with a flat surface arranged in the region of the binding and the hollow body forming the ski. This allows the hollow body to deform without hindrance.
- the installation of the webs in the hollow body forming the ski can be simplified in that the webs are formed in one piece with the plate.
- the plate is provided on both sides - with respect to the longitudinal direction of the ski - with tongue-like extensions which extend almost to the tip and end of the ski, the webs also being formed in one piece with the tongue-like extensions.
- Both the plate arranged in the region of the binding and the adjoining tongue-like projections can be firmly connected, for example screwed, to the hollow body forming the ski.
- a very precise adjustment of the elasticity of the ski according to the invention is possible in that the webs are designed as screws screwed into the upper wall of the hollow body.
- the ski can be given any elasticity by screwing the screws in or out. It is also possible to screw in the screws to such an extent that a pretension occurs, whereby the rigidity of the ski can be increased if necessary.
- the screws forming the webs are provided with a head and a washer is located under the screw head.
- a washer By using washers of different thicknesses, the elasticity of the ski can be changed and adapted to the respective requirements.
- the individual washers can have different colors or be provided with different notches so that the elasticity that is actually required is also set.
- threaded bushings are inserted into the upper wall of the hollow body forming the ski and the screws forming the webs are screwed into the threaded bushings. This makes it possible to manufacture the hollow body which forms the ski from light metal and the threaded bushings and the screws which form the bridge from steel.
- the hollow body forming the ski is inserted at least in the area of the openings into which the webs are inserted are foamed with a plastic before inserting or screwing in the webs.
- Figure 1 is a plan view of a ski.
- Figure 2 is a section along the line II-II in Figure 1, on a larger scale.
- Figure 3 is a section along the line III-III in Figure 1, also on a larger scale.
- FIG. 4 shows a section corresponding to FIG. 2 through another ski
- FIG. 5 shows a section corresponding to FIG. 2 through a further ski
- FIG. 7 shows the ski according to FIG. 6 in a side view
- Fig. 9 is a section along the line IX-IX in Fig. 8, on a larger scale.
- the ski 1 shown in FIGS. 1 to 3 is formed from a uniform hollow body, the ski 1 has a smaller width in its central region 2 than in its front and rear Area. This has been achieved by a different pressure load, whereby - as can be seen from FIGS. 2 and 3 - the ski 1 in its front or rear area 3 is correspondingly flatter than in its central area 2.
- the sliding surface - steel profiles 4 are attached, which are connected by a plastic layer 5 to the hollow body forming the ski 1.
- a plurality of webs 7 arranged one behind the other are provided, the webs 7 in the present case being designed as grub screws which are screwed into the upper wall 8 of the hollow body forming the ski 1.
- the edges of the lower surface of the ski 1 are provided with recesses 9, in which the steel profiles 4 are inserted.
- the webs 7 are designed as screws provided with a head, a washer 10 being arranged under the screw head.
- the lower end of the webs 7 is at a distance from the lower wall 11 of the hollow body forming the ski 1, which can be changed by using washers 10 of different thicknesses.
- the upper wall 8 of the hollow body forming the ski 1 is provided with a shoulder 12 in the region of the webs 7 on its lower edge.
- the ski 1 shown in FIGS. 6 and 7 with a wall thickness W has the shape of a flat lens, that is to say the shape of an oval with sharp lateral edges.
- the ski 1 On its underside, the ski 1 is provided with side lugs 14, so that there is a flat support surface.
- the wedge-shaped spaces 15 above the lugs 14 are filled with plastic.
- Correspondingly shaped ribs 16, which are at a distance A from one another, are embedded in the wedge-shaped spaces 15 in the central region of the ski 1.
- the sliding surface of the ski 1 is formed by a plastic layer 17, in which steel profiles 18 are inserted.
- the ski 1 shown in FIGS. 8 and 9 is provided in the region of the binding with a plate 19 with a flat surface, on which tongue-like projections 20 are formed on both sides, based on the longitudinal direction of the ski 1.
- the webs 7 are formed in one piece with the plate 19 and the tongue-like projections 20.
- a layer 21 of elastic material is arranged between the plate 19 and the hollow body forming the ski 1.
- round rods 22 are embedded in the plastic filling the wedge-shaped spaces 15.
Landscapes
- Panels For Use In Building Construction (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893936378 DE3936378A1 (de) | 1989-07-26 | 1989-11-02 | Verfahren zur herstellung eines ski |
DEP3936378.3 | 1989-11-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991006350A1 true WO1991006350A1 (de) | 1991-05-16 |
Family
ID=6392664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1990/001934 WO1991006350A1 (de) | 1989-11-02 | 1990-10-30 | Verfahren zur herstellung eines ski |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0452448A1 (de) |
WO (1) | WO1991006350A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995003859A1 (de) * | 1993-07-27 | 1995-02-09 | Gramlich, Markus | Aus mehreren elementen zusammengesetzter ski |
EP0758557A2 (de) * | 1995-08-14 | 1997-02-19 | ATOMIC Austria GmbH | Brettartiges Gleitgerät, insbesondere Schi mit einem Tragkörper |
AT405023B (de) * | 1992-03-23 | 1999-04-26 | Wolfgang Lehner | Ski |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2661219A (en) * | 1948-12-31 | 1953-12-01 | Jr Bevis P Coulson | Flexible ski |
FR1304880A (fr) * | 1961-11-02 | 1962-09-28 | Ski avec résistance variable à la flexion | |
FR2126613A5 (de) * | 1971-02-12 | 1972-10-06 | Sactra Sa | |
US3977688A (en) * | 1972-12-30 | 1976-08-31 | Nippon Gakki Seizo Kabushiki Kaisha | Structure for connecting a ski binding clamp to a ski |
FR2345176A1 (fr) * | 1976-03-22 | 1977-10-21 | Bondivenne Jules | Perfectionnement a la construction des skis en utilisant une structure creuse metallique |
FR2565836A1 (fr) * | 1983-11-25 | 1985-12-20 | Cheramy Sylvain | Structure monobloc de ski a profil bi-convexe |
-
1990
- 1990-10-30 WO PCT/EP1990/001934 patent/WO1991006350A1/de not_active Application Discontinuation
- 1990-10-30 EP EP19900915775 patent/EP0452448A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2661219A (en) * | 1948-12-31 | 1953-12-01 | Jr Bevis P Coulson | Flexible ski |
FR1304880A (fr) * | 1961-11-02 | 1962-09-28 | Ski avec résistance variable à la flexion | |
FR2126613A5 (de) * | 1971-02-12 | 1972-10-06 | Sactra Sa | |
US3977688A (en) * | 1972-12-30 | 1976-08-31 | Nippon Gakki Seizo Kabushiki Kaisha | Structure for connecting a ski binding clamp to a ski |
FR2345176A1 (fr) * | 1976-03-22 | 1977-10-21 | Bondivenne Jules | Perfectionnement a la construction des skis en utilisant une structure creuse metallique |
FR2565836A1 (fr) * | 1983-11-25 | 1985-12-20 | Cheramy Sylvain | Structure monobloc de ski a profil bi-convexe |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT405023B (de) * | 1992-03-23 | 1999-04-26 | Wolfgang Lehner | Ski |
WO1995003859A1 (de) * | 1993-07-27 | 1995-02-09 | Gramlich, Markus | Aus mehreren elementen zusammengesetzter ski |
US5788259A (en) * | 1993-07-27 | 1998-08-04 | Uwe Emig | Ski composed of several elements |
EP0758557A2 (de) * | 1995-08-14 | 1997-02-19 | ATOMIC Austria GmbH | Brettartiges Gleitgerät, insbesondere Schi mit einem Tragkörper |
EP0758557A3 (de) * | 1995-08-14 | 1997-12-29 | ATOMIC Austria GmbH | Brettartiges Gleitgerät, insbesondere Schi mit einem Tragkörper |
Also Published As
Publication number | Publication date |
---|---|
EP0452448A1 (de) | 1991-10-23 |
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