Land vehicles – Skates – Shoe attaching means
Patent
1990-12-12
1993-03-02
Marmor, Charles A.
Land vehicles
Skates
Shoe attaching means
280607, 280632, 36117, A63C 900
Patent
active
051903105
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is directed to a cross-country or touring ski binding. Such a ski binding, which also originated from the-applicant, has recently become available the market. It is being sold under the name ROTTEFELLER NNN-BC (BACKCOUNTRY). This binding is distinguished by a robust structure, good guiding properties and safe operation. Accordingly, it has been well received among users.
The present invention is based on the object of improving the known ski binding in such a way that both "steppingin" and "steppingout" into and out of the binding are facilitated. At the same time, the binding is intended to guarantee an ergonomic flow of motion, especially without excessive load on the toes of the cross-country skier while skiing.
SUMMARY OF THE INVENTION
In accordance with the invention, a cross-country or touring ski binding for a cross-country ski shoe includes a front end of sole having an engaging member which is constructed to engage a member of the binding and form an articulated pivotal coupling. The front end member forms a sole-integrated pivot axis which extends transversely to the longitudinal direction of the shoe and approximately parallel with the bottom surface of said shoe. The complementing engaged member of the binding includes a retaining hook which at least partially encompasses the pivot axis member and defines a hinge therewith for moving the ski between a raised pivoted position and a lowered position approximately parallel with the ski. The retaining hook is movable between a closed position and a release position. The binding includes an elastically deformable element elastically engaging the front end of the shoe and restoring the shoe from the raised pivoted position to the lowered position, the specified object is solved by a locking member which is secured to the binding body in the location of the shoe within the binding and in the lowered position. Step-in of the shoe into the binding actuates the locking member to hold the retaining member in the release position in which the retaining hook is freely movable to its closed position at least partially encompassing the sole-integrated pivot axis.
The design according to the invention permits stepping into the binding without manual operation of an opening mechanism. Also, when the binding has been opened to permit stepping out, the corresponding actuating element need not be kept in the open position until the stepping out operation has been completed. Rather, the engaging elements inherent in the binding are kept in open or release position, respectively, by the locking member in accordance with the invention Thereby convenient stepping-in and stepping-out into and from the binding is enabled. In this respect the design according to the invention represents a considerable improvement over the known ski binding according to EPA83 400 403.8, in which during stepping out from the binding the retaining member for fixing the ski boot must also be kept in the open position either manually or by means of the ski pole against the action of an elastically deformable element or flexor cooperating with the retaining member. Consequently, the ski is continually urged away during the stepping-out operation and the skier may easily lose his balance. Above all, stepping out of the binding after a fall poses a problem in connection with such binding designs; in unfavourable cases it may even become impossible to step out of the binding because the power required to open the retaining member cannot be applied. Moreover, in case of the last-mentioned design even stepping into the binding may be problematic, because the retaining member is continuously biased. It is necessary to apply a relatively high pressure so as to urge the retaining element against the mentioned biasing force while stepping into the binding.
Due to the fact that the locking element according to the invention cooperates on the one hand with the retaining member, i.e. a retaining hook, and on the other hand with the complementary engaging eleme
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Richter et al.: Bauelements der Feinmechanik, 9 Auflage 1964, VEB Verlag Technik Berlin, pp. 265, 266.
Hauglin Bernt-Otto
Popp Eugen
Johnson Brian L.
Marmor Charles A.
Witco A.S
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