The present invention relates in general to ski bindings, and pertains, more particularly, to ski bindings that are preferably used with a Telemark ski.
One traditional Telemark ski binding employs a front latch for securing the boot in the binding. This is typically referred to as a three pin 75 mm Nordic Norm binding. These types of bindings have traditionally required the skier to bend down and manually press down upon a latch mechanism at the front of the toe of the ski boot to attach the ski boot to the binding. This is a rather cumbersome arrangement, and it is time consuming in engaging the ski boot with the binding.
Another traditional Telemark binding employs a heel cable to secure the boot to the binding. This also is a cumbersome arrangement requiring time consuming positioning and adjustment for proper securing of the ski boot to the binding. Also, the cable may affect the overall flexibility and use of the ski by the skier.
It is an object of the present invention to provide an improved ski binding, preferably for use with a Telemark ski and in which the binding is a step-in binding.
Another object of the present invention is to provide a ski binding that is of the step-in type and that comprises a toe piece that the boot can readily engage and means for simple and ready disengagement.
Still another object of the present invention is to provide a ski binding with an integral ski brake, particularly a step-in type binding for telemark skiing.
In accordance with the present invention there is provided a step-in binding for receiving a ski boot, comprising: a base constructed and arranged to be secured to the ski; and a pair of boot support members pivotally supported from a front side of the base, and disposed laterally on either side of the base. The pair of boot support members is biased to a boot receiving or open position and further has a locked or closed position that is assumed once the boot is received, engages the pair of boot support members, and is cantilevered downwardly into the locked position. A release lever is arranged at the front of the base, readily accessible to the skier and includes a member that releases the pair of boot support members from the locked position to the boot receiving or boot released position upon activation of the release lever.
In accordance with other features of the present invention there are the following aspects. A base has a pressure plate on a front top surface that firmly engages an underside of the boot. The pressure plate is slightly elevated above the rest of the top surface of the base and includes securing pins engageable in holes in the boot for retaining the boot in place. A cross bar is disposed between the pair of boot support members for engaging the front top of the boot and a pair of stop posts are associated respectively with the pair of support members. The member that releases the pair of support members includes a latch pin that extends through the base retained at its front end at the release lever and has a back end that engages and locks the pair of support members. A cross piece preferably extends between the lateral support members for engagement with the back end of the latch pin, the latch pin being tapered at its back end so as to displace when the lateral support members move downwardly yet lock with the cross piece when filly engaged. A spring is for biasing the latch pin toward a backward position, the base having a front to back passage for receiving the latch pin. The base comprises an outer metal shell and an inner plastic core that has the passage therein. The release lever may be supported from the base by means of a pivot pin, the release lever held by the pivot pin and supported at the front end of the latch pin. Preferably a ski brake is integrated into the base and has wings that extend through the pair of lateral support members. At least one spring is disposed in the base for biasing the brake and for urging the later support members away from the locked position.
In accordance with another aspect of the present invention there is provided a step-in binding for receiving a ski boot for telemark skiing, comprising: a base constructed and arranged to be secured to the ski; and a pair of boot support members pivotally supported from a front side of the base, and disposed laterally on either side of the base. The lateral side members are preferably tapered inwardly toward the front so as to receive and guide the ski boot as it is to be engaged. The pair of boot support members is biased to a boot receiving position and further has a locked position that is assumed once the boot is received, engages the pair of boot support members, and is cantilevered downwardly into the locked position. A release lever is arranged at the front of the base, readily accessible to the skier and including a member that releases the pair of boot support members from the locked position to the boot receiving position upon activation of the release lever. A ski brake is integrated into the base, releasable should the boot become disengaged, and constructed and arranged to urge the lateral support members from the locked position to the released position.
In accordance with other features of the present invention there are the following aspects. The base has a pressure plate on a front top surface that firmly engages an underside of the boot, and the pressure plate is slightly elevated above the rest of the top surface of the base and includes securing pins engageable in holes in the boot for retaining the boot in place. The member that releases the pair of support members includes a latch pin that extends through the base retained at its front end at the release lever and having a back end that engages and locks the pair of support members. A cross piece preferably extending between the lateral support members for engagement with the back end of the latch pin, the latch pin being tapered at its back end so as to displace when the lateral support members move downwardly, yet lock with the cross piece when fully engaged, a spring for biasing the latch pin toward a backward position, the base having a front to back passage for receiving the latch pin, and wherein the base comprises an outer metal shell and an inner plastic core that has the passage therein. A cross bar may be disposed between the pair of boot support members for engaging the front top of the boot and a pair of stop posts associated respectively with the pair of support members.
In accordance with still another aspect of the present invention there is provided a step-in binding for receiving a ski boot comprising: a base constructed and arranged to be secured to the ski, and a pair of boot support members mounted from a front side of the base, and disposed laterally on either side of the base. The lateral side members are adapted to receive and guide the ski boot as it is received. The pair of boot support members are biased to a boot released position and further have a locked position that is assumed once the boot is received, engages the pair of boot support members, and is cantilevered downwardly into the locked position. A release lever is mounted at the front of the base, readily accessible to the skier and includes a release member that releases the pair of boot support members from the locked position to the boot released position upon activation of the release lever.
In accordance with other features of the present invention there are the following aspects. A ski brake is integrated into the base, and constructed and arranged to urge the lateral support members from the locked position to the released position. The lateral side members are preferably tapered inwardly toward the front so as to receive and guide the ski boot as it is to be engaged. The member that releases the pair of support members includes a latch pin that extends through the base retained at its front end at the release lever and having a back end that engages and locks the pair of support members.
In accordance with still another aspect of the present invention there is provided a step-in binding for receiving a ski boot comprising a base constructed and arranged to be secured to the ski; and a boot support member supported from a front side of said base; The boot support member is biased to a boot receiving position and further has a locked position that is assumed once the boot is received, engages the boot support member, and is cantilevered downwardly into the locked position. A release lever is arranged at the front of the base, readily accessible to the skier and includes a member that releases the boot support member from the locked position to the boot receiving position upon activation of the release lever. A ski brake is integrated into the base, and constructed and arranged to urge the support member from the locked position to the released position.
The step-in binding of the present invention is primarily anticipated as for use for Telemark skiing. A preferred embodiment of the binding is illustrated in
Now, with reference to the preferred embodiment of the invention illustrated in
The base 10 is comprised of a main channel member 30 having a passage for receiving the plastic block 32. The channel member 30 at its base wall has pairs of front and rear holes for receiving securing screws 35, such as illustrated in
A pressure plate 36 is secured to the top surface at the front of the channel member 30. The pressure plate 36 supports three boot alignment pins 38.
The base 10 supports the ski brake 16 as well as the binding release mechanism. The center loop 16A of the ski brake 16 is adapted for support within a lower slot in the plastic block 32. In the assembly of the mechanism, the ski brake 16 is engaged with the block through the channel member passage 41, as illustrated in FIG. 8. Opposite sides of the ski brake 16 also extend through respective holes 42 in the support members 12A and 12B. This inter-engagement between the ski brake 16 and the lateral support members 12A and 12B is instrumental in providing the releasing force for release of the binding from its locked position to its released position as illustrated in, for example, FIG. 1. Springs 18 disposed within the block 32 urge the ski brake 16 to the position illustrated in
Also supported through the block 32 is the latch pin 22. Block 32 has a front to back passage 23 for receiving the latch pin 22. The rear end of the latch pin 22 is tapered as illustrated at 44. A pin 46 is used, passing though the latch pin 22 at passage 47 so as to secure in position one end of the spring 24. The very front end of the latch pin 22 is secured on the front side of the release lever 20 by means of a further pin 48 also passing through a hole at the front end of latch pin 22.
As indicated previously, the lateral support members 12A and 12B are pivotally supported from the base 10 by means of the pivot pin 14. The rear face of the release lever 20 is urged against pin 14. The pin 14 also functions as a spacer between the support members 12A and 12B, and assures that there is correct spacing between the support members and the pin 14. The pin 14 provides the main pivot for the lateral support members 12A and 12B and is attached to them by means of screws 50, as depicted in FIG. 8.
The lateral support members 12A and 12B each have tapered sidewalls 52 that are adapted to guide the boot as it is inserted, such as the boot 55 illustrated in FIG. 2. Also refer to
The cross-sectional view of
Reference is now made to
It can be readily seen from the foregoing description, that the step-in binding of this invention is a relatively simple construction and, in the preferred embodiment, incorporates the ski brake into the binding. The ski brake actually functions both as a brake and as a means for assisting in releasing the binding by means of the bias of associated ski brake springs.
Another feature of the present invention is the relative flatness of the entire mechanism, particularly at the top surface 33 and at the surfaces that the boot rest upon on the lateral support members. By making these surfaces flat, there is far less of a likelihood of snow and ice buildup between the ski boot and the binding surfaces.
Another feature of the present invention is the use of a separate pressure plate elevated slightly above the surface 33 that enables a firm pressure contact with the boot, between the pressure plate 36 and the crossbar 54.
Still another feature of the present invention is the preferred front positioning of the release lever. Many times release levers are disposed on the back of the binding and this makes it quite difficult to have access thereto. In accordance with the present invention the release lever is readily accessible at the front of the binding and preferably has an indentation therein to receive, for example, the end of a ski pole.
Another feature of the present invention relates to the simplified construction, such as the use of three crossbars that are used to unify the lateral support members. The front bar forms the hinge mechanism, the bar across the top of the boot holds the boot in place, and the rear bar locks the lateral member down. This locking down occurs between the spacer 60 and the pin 22. Also, it is noted that the cross bars (spacers) abut to the inner surface of the lateral members thus maintaining the width necessary to receive the center block. These pins that support the bars or spacers are held in place with a screw through the lateral members and threaded into them.
Having now described a limited number of embodiments of the present invention, it should be now apparent to those skilled in the art that numerous embodiments, modifications and equivalents are contemplated as following within the scope of the present invention as defined by the appended claims. For example, the lateral boot support members and crossbar over the toe of the boot may be constructed as a single molded part that covers the whole front of the boot sole.
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Number | Date | Country | |
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20040041366 A1 | Mar 2004 | US |