Land vehicles – Skates – Shoe attaching means
Patent
1985-10-01
1987-04-28
Love, John J.
Land vehicles
Skates
Shoe attaching means
280629, A63C 908
Patent
active
046608494
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a toe piece of a safety ski-binding, and in particular to a toe piece or front piece constructed to compensate for the effect of friction between a ski boot and the toe piece on the release characteristics of the unit.
Toe pieces are known in the market which have a sliding plate which is fixably mounted on the ski for eliminating the effect of friction between the boot and the binding. Under conditions where the toe piece receives forces from the side and is, at the same time under load from the pressure of the ball of the foot, the friction between the ski boot sole and the ski together with the sliding plate, respectively, is avoided. However, such toe pieces do by no means operate free of friction. Only the location where the friction occurs is moved under the pedal and is independent from the material and the condition of the ski boot sole.
It is an object of the present invention to provide a toe piece for a ski binding whose release resistance is virtually independent of the friction created by the ball of the foot.
Another object of the invention is to provide an improved toe piece for a safety ski binding which is constructed to compensate for the effect of friction between a skier's boot at the ball of the skier's foot and the binding for many directions of applied forces, so as to avoid the effect of such friction or the release characteristics of the binding.
Yet another object of the invention is to provide a toe piece for a safety ski binding as described above which is of simple construction, and which can be made and used in an effective and efficient manner.
Other objects will become apparent from the description to follow and from the appended claims.
These objects are achieved according to the preferred embodiment of the invention by the provision of various inclined surfaces in the binding toe piece which, depending on the angle at which forces are applied to the binding according to the direction in which the skier is leaning, are engaged by cooperating binding structure to generate a resultant force whose direction and magnitude compensate for the resultant force from the friction which occurs between the ski boot and the toe piece. The direction of the compensating force is determined by the angle of inclination of the inclined surfaces. The binding structure which is engageable with the inclined surfaces can be in the form of rollers mounted on axes fixed relative to the surfaces, and/or the heads of rigid posts fixed relative to the inclined surfaces. The preferred toe piece includes a pair of sole holders pivotally mounted for rotation about laterally spaced vertical axes.
The preferred embodiment of the invention is described below in connection with the following drawings:
FIG. 1 is a horizontal cross sectional view of the preferred toe piece along line I--I in FIG. 2;
FIG. 2 is a longitudinal sectional view of the toe piece along II--II in FIG. 1;
FIG. 3 is a cross sectional view of the toe piece along III--III in FIG. 2; and
FIGS. 4-7 are representations similar to FIG. 3 showing the toe piece when different conditions of load are present.
The toe piece as shown has a housing which comprises a bottom portion 1 and an upper portion 2. The housing can be mounted by means of screws on a ski in a known manner. For this purpose the bottom portion 1 is provided with holes 4 in an extension 3 which projects with respect to the upper portion 2. The holes 4 are adapted to receive mounting screws. Within the housing a quadrangle of links is located. The linkage quadrangle comprises levers 5 and 6 and a coupling element 7. Levers, 5, 6 are pivotally mounted on axles 8 and 9, respectively; said axles 8 and 9 extend within said housing perpendicularly with respect to the plane of the ski. Mounting pins 10 and 11 are provided for connecting the coupling element with the respective levers 5, 6. Each of the mounting pins 10, 11 also supports a sole holder 12 and 13, respectively. The releasable locking of said sole holders does not form part of the present inv
REFERENCES:
patent: 3667770 (1972-06-01), Lawrence
patent: 3920256 (1975-11-01), Sittmann
patent: 4170372 (1979-10-01), Salomon
patent: 4336956 (1982-06-01), Richert et al.
patent: 4516792 (1985-05-01), Scheck et al.
Knabel Walter
Sedlmair Gerhard
Hochberg D. Peter
Love John J.
Mab Michael
Marker International Company
LandOfFree
Toe piece for a safety ski-binding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toe piece for a safety ski-binding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toe piece for a safety ski-binding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-472671