Land vehicles – Skates – Shoe attaching means
Patent
1985-10-22
1987-07-28
Love, John J.
Land vehicles
Skates
Shoe attaching means
280631, A63C 900
Patent
active
046827854
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a cross-country ski binding for cross-country ski boots with a forwardly extended front sole end which is formed as a downwardly directed hook, with a transverse member which is provided for co-operation with the end of the sole and which is mounted in side jaws which extend upwardly from a base plate which is to be fixedly mounted on the ski.
Cross-country ski bindings of that kind are already known from German laid-open application (DE-OS) No 28 29 564. In comparison with other known cross-country ski bindings, they afford the advantage of being of a particularly simple construction which is not liable to give trouble as there is no need to bend either the forwardly extended end of the sole nor a part of the ski binding, when lifting the ski boot off the ski.
In the case of the cross-country ski bindings of the general kind set forth above, the transverse member is part of a bent wire stirrup member which at the same time serves for securing the connection of the ski boot to the ski binding. For that purpose, a special retaining projection is required, on the forwardly extended end of the sole. In addition, the wire stirrup member extends upwardly away from the surface of the ski, in the condition of use thereof. Furthermore, those known cross-country ski bindings do not provide for pivotal movement of the ski boot on the transverse member against a resistance which is initially low and which then progressively increases.
The present invention aims to provide such a configuration of the cross-country ski binding of the general kind set forth, that the above-indicated defects and disadvantages are eliminated.
In accordance with the invention, that is achieved in that, for the purposes of pivotally mounting the front end of the sole in the binding, there is provided a U-shaped stirrup member whose limb portions are mounted at their free ends on tne transverse member and whose web portion extends parallel with respect to the transverse member, thereby forming a frame for accommodating the front end of the sole, and that the U-shaped member is subjected to the force of a spring which loads it in the direction of clamping the front end of the sole in position and the boot is pivotable about the transverse member against the resistance of the spring.
That construction no longer requires a special retaining projection of the forwardly extended end of the sole of the cross-country ski boot. Furthermore, that arrangement also no longer has any part which extends dangerously upwardly away from the ski. The spring for loading the U-shaped member on the one hand secures the boot in its fitting in the ski binding and on the other hand gives a progressively increasing resistance acting against the boot upon pivotal movement thereof.
A first construction has been found to be desirable, wherein the U-shaped member is formed as a crank arm and is connected by way of a journal member to a thrust member which is pivotable and longitudinally displaceable relative to the base plate. In a further development of that concept of the invention, a particularly simple construction is achieved in that the thrust member bears with a projection against the base plate and is held in its inner limit position under the force of the spring and that the spring is in the form of a coil torsion spring and is mounted on the journal member. In that case, the spring performs a double function in that it loads on the one hand the thrust member and on the other hand the stirrup member.
In order to facilitate both insertion of the boot into the ski binding and also release thereof from the ski binding, a design configuration of the present invention provides that disposed on the thrust member is a locking lever which has a lock hook or catch. In that arrangement, the base plate has a co-operating barb or catch portion which is intended to co-operate with the lock catch and the locking lever is loaded in the direction of unlocking by a holding spring.
That construction permits the locking lever to be latched as des
REFERENCES:
patent: 4533154 (1985-08-01), Bernard et al.
Adidas Sportschuhfabriken Adi Dassler Stiftung & Co. KG
Camby Richard
Love John J.
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