Land vehicles – Skates – Runner type
Patent
1986-11-28
1989-02-14
Mitchell, David M.
Land vehicles
Skates
Runner type
280607, 280609, A63C 507
Patent
active
048042005
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a National Phase application corresponding to PCT/DE86/00049 filed Feb. 13, 1986 and based, in turn, upon Federal Republic of Germany applications P 35 05 255.4 filed Feb. 15, 1985, P 35 10 717.0 filed Mar. 23, 1985, P 35 33 043.0 of Sept. 17, 1985 and P 35 33 904.7 of Sept. 23, 1985 under the International Convention.
FIELD OF THE INVENTION
The invention relates to a sliding device, particularly an alpine ski, with two superposed and mutually attached body portions made of wood, metal, synthetic material or the like, capable of elastically absorbing a load acting upon them because of a spacing maintained between the two portions.
BACKGROUND OF THE INVENTION
During a fast ride with an alpine ski, water ski, sled or surfboard, strong vibrations are transmitted to the rider due to the bumpiness of the ground or the shock of the waves. These vibrations must be absorbed by the joints and entire motor system of the skier. Injuries of the ankle articulation, the Achilles tendon, as well as of the meniscus and the ligament disks occur during overload. These overloads, at best, result in rapid overtiring and an unsafe ride. The rapidly changing strains present in all of these sports, especially, create big problems.
Attempts have already been made to absorb all these stresses in the ski itself, based upon its particular construction. Thus, it is known from German open application 19 01 614, German published specification 14 78 153, the German published specification 17 03 766 and the German Utility Model 82 04 143 to absorb shocks with damping elements, located particularly in the area of the ski binding. However, this is possible only to a limited extent and does not affect positively the characteristics of the ski itself.
OBJECT OF THE INVENTION
It is the object of the invention to provide a sliding device, especially ski, of the afore-mentioned kind which relieves considerably the strain on the human motor system and, at the same time, improves the sliding performance.
SUMMARY OF THE INVENTION
The problem is solved in accordance with the invention by connecting the body portions to each other in a torsion-resistant manner in the high-stress area which, in the case of the alpine ski, for instance, is the area close to the front and the back of the binding, thereby forming a laterally-open torsion-resistant box for the absorption of the ocurring stresses.
The gliding apparatus has a high degree of self-damping with respect to vibrations, because the area of the binding can be provided with effective and well-calculated damping means. Due to the torsion-resistant connection, the sliding device has excellent sliding characteristics, even over hard and icy tracks. The two superimposed body portions create a damping system, so that the strain on the human motor apparatus is considerably diminished. Altogether, improved gliding and running characteristics result, which can be seen particularly in slalom skiing which can be performed more precisely. This effect is due to the fact that a more even pressure transmission from the skier to the sliding surface is achieved. As a whole, a ski, or a sliding surface, results which presents considerable improvements for the beginner, as well as for the competion level.
Furthermore, simpler and cheaper manufacturing processes are applicable. In this case, the complicated constructions of skis can be avoided, since an even pressure transmission is ensured by the torsion-resistant box. Through the concentration of the torsional load on the torsion-resistant segment, the holding, as well as the turning and steering performances of the gliding device are all brought together in this short zone of the torsion-resistant segment. Due to high specific edge pressures, gliding characteristics similar to skating result. The torsion-resistant connection between the body portions, according to the invention, is effected by spacers which are arranged correspondingly at intervals, in front and in the back of the binding. P
REFERENCES:
patent: 2434851 (1948-01-01), Hoerle
patent: 2539224 (1946-02-01), Beerli
patent: 2550002 (1951-04-01), Chorney
patent: 2661219 (1953-12-01), Coulson, Jr.
patent: 3260532 (1966-07-01), Heuvel
patent: 3514119 (1970-05-01), Sutherland
patent: 3628802 (1971-12-01), Hashimoto et al.
patent: 3817543 (1974-06-01), Haff
patent: 4139214 (1979-02-01), Meyer
Dubno Herbert
Johnson Brian L.
Mitchell David M.
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