Land vehicles – Skates – Runner type
Patent
1991-09-25
1993-03-30
Culbreth, Eric D.
Land vehicles
Skates
Runner type
280602, 280607, 280617, 280618, 280636, A63C 500
Patent
active
051977524
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a ski comprising a core and at least one upper and one lower surface layer, with recesses being provided in the binding area in the core, in which recesses containers are secured, into which containers inserts for anchoring the end sections of fastening screws for ski bindings are inserted, with each insert being composed of at least two layers, one layer of which consists of an elastomer material and the other layer of a fixed material, for example of metal and/or a glassfiber-reinforced plastic.
BACKGROUND OF THE INVENTION
Such a ski became available to the public through the Tyrolia brochure 1989/90 (No. 136471, "News and Highlights") or through an exhibition at the 1989 ISPO (Feb. 23 to 26, 1989), both corresponding to the teachings in U.S. Pat. No. 5,016,901. Of course, installation of the binding created certain difficulties in this ski, since one single step drill did not only have to drill through the upper surface layer but also through the layer of the elastomer material. Rubber particles, separated thereby from the last-mentioned layer, which particles after the drilling operation clogged at times the drill hole and, therefore, had to be removed prior to the insertion of the screw.
The purpose of the invention is to overcome these disadvantages and to provide a solution in which the layer of elastomer material needed to dampen vibrations no longer needs to be drilled through during the manufacture of the bore for the fastening screws.
SUMMARY OF THE INVENTION
A ski which includes a core having at least one upper surface layer thereon and one lower surface layer thereon and plural recesses in the core in a binding area. A hollow container is fixedly received in each recess, the container having a bottom wall and upstanding sidewalls and a lid. An insert is received in each of the hollow containers for connection in end sections of fastening screws extending through means defining an opening in the lid, which screws are used for fastening a ski binding to the binding area on the ski. Each of the inserts is composed of at least first and second layers, the first layer consisting of an elastomer material and the second layer consisting of a solid material. The first layer of elastomer material is oriented below the second layer of solid material. The elastomer material is fixedly connected to both the bottom wall of the container and also the second layer of solid material. Each of the second layers is supported for movement in said container toward and away from the bottom wall. The fastening screws are connected solely to the second layer of solid material. Means defining a free space is provided between the second layer and the lid so as to facilitate the movement of the second layer toward and away from the bottom wall and a subjection of the first layer of elastomer material to compressive and tension forces in response to the ski binding being forced to move relative to the ski.
BRIEF DESCRIPTION OF THE DRAWINGS
Exemplary embodiments of a ski of the invention are illustrated in the drawings.
FIG. 1 is a longitudinal cross-sectional view taken along the line I--I of FIG. 2 of a first embodiment, and
FIG. 2 is a cross-sectional view taken along the line II--II of FIG. 1,
FIG. 3 is an associated cross-sectional view taken along the line III--III of FIG. 2,
FIGS. 4 and 5 are enlarged cross-sectional views of two further embodiments in a nonstressed state, each of which corresponds with a detail of FIG. 3,
FIG. 4a illustrates the embodiment according to FIG. 4 during the highest level of stress.
DETAILED DESCRIPTION
A ski is identified by the reference numeral 1 in FIGS. 1 to 3. It has a core 2 which on its upper side is covered by an upper belt 3 and on its underside by a lower belt 4. Side walls 5 are attached to the narrow side surfaces of the core 2. The design of such a ski is actually known and is not part of the subject matter of the present invention.
Two recesses 6 extending in longitudinal direction of the ski 1 are recessed in
REFERENCES:
patent: 5016901 (1991-05-01), Mayr
patent: 5026086 (1991-06-01), Guers et al.
Engelbert Spitaler
Erdei Roland
Freisinger Henry
Heinz Wittmann
Himmetsberger Alois
Culbreth Eric D.
HTM Sport- und Freizeitgeraete Gesellschaft m.b.H.
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