Land vehicles – Skates – Shoe attaching means
Patent
1987-12-15
1990-03-13
Rice, Kenneth R.
Land vehicles
Skates
Shoe attaching means
A63C 920
Patent
active
049078178
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a binding for cross-country skis, this consisting of one binding unit that is permanently attached to the ski and a second binding unit that forms a part of the ski shoe, said binding incorporating two parallel shafts of which one is held in a rigid shaft receiver in a direction perpendicular to the ski and one is spring-loaded by at least one spring element, so that the ski shoe is clamped down to the ski so as to be sprung.
A ski binding of this type is known from DE-C-29 54 446 and from numerous other examples that operate on the same principle and which are available to the trade. Common to these is the fact that a shaft is moulded into the toe of the ski shoe is inserted so as to be releasable in a shaft receiver that is part of the other binding unit, so that because of the motion required for cross-country travel the ski shoe pivots about this shaft and is simultaneously spring-loaded. The desired spring-back of the ski shoe onto the ski is achieved with this ski binding in that the force of a spring element is applied above this shaft and shaft receiver on the forward part, which is to say the tip, of the ski shoe. The shape of the toe or tip portion of the ski shoe is appropriately configured so as to accommodate the pressure of the spring. In order to avoid any direct effect of the spring element or of a body that transmits the force of the spring onto the ski shoe or onto the extension of its sole that tapers in an upwards direction, according to DE-C-29 54 446, cited above, the shaft of the ski shoe is provided with an upwardly oriented angle piece so that there are two shafts that are slightly separated and extend parallel to each other, transversely offset along parallel geometrical axes. Correspondingly, the spring element or the spring-loaded transmission body presses on the uppermost of these two shaft sections. Since both shaft sections are held in a horizontal direction only by the force of the spring element, they can twist transversely, so that the ski shoe has very little lateral stability with reference to the ski. In addition, it is only possible to open and close this ski binding manually, by operating the locking lever. Furthermore, the known spring elements of ski bindings that consist, for example, of a rubber block or a wire bale are restricted with regard to the travel of the spring and possess unfavourable spring characteristics.
It is the task of the present invention to find an improved ski binding, said binding providing good lateral stability of the ski shoe within the ski binding and which makes it easy to step into and out of the binding. The solution of this and other tasks is made on the basis of the characteristic features of patent claim 1. Numerous advantageous embodiments that are based on these features are the subject of the subsequent patent claims.
The present invention will be described in greater detail below on the basis of the embodiments shown in the drawings appended hereto. These drawings are as follows:
FIGS. 1 to 3: a longitudinal section through a cross-country ski binding with a portion of the ski shoe, in various positions;
FIG. 4: a first variation of the embodiment as shown in FIGS. 1 to 3;
FIGS. 5 and 6: a second variation of the embodiment shown in FIGS. 1 to 3;
FIGS. 7 to 9: a longitudinal section through a further embodiment of a ski binding in three positions;
FIGS. 10 and 11: a longitudinal section through a further embodiment of the ski binding, in two positions;
FIGS. 12 and 13: a variation of the embodiment shown in FIGS. 10 and 11, in two positions;
FIGS. 14 and 15: a longitudinal section through a further embodiment with ski binding in two positions;
FIGS. 16 and 17: a variation of the embodiment shown in FIGS. 14 and 15;
FIG. 18: a front view of the part of the ski binding as in FIGS. 16 and 17, attached to the ski;
FIG. 19: a plan view of the ski binding as in FIG. 16;
FIGS. 20 to 22: a further variation of the embodiment shown in FIGS. 14 and 15 in three positions;
FIGS. 23 to 25: a side view of an e
REFERENCES:
patent: 4309833 (1982-01-01), Salomon
patent: 4382611 (1983-05-01), Salomon
patent: 4484762 (1984-11-01), Salomon
patent: 4496169 (1985-01-01), Salomon et al.
patent: 4562653 (1986-01-01), Salomon
Finlay Tamara L.
Rice Kenneth R.
Salomon S.A.
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