The present invention relates to a ski binding that retains a boot to a ski in at least two independent operational states. One embodiment of a ski binding includes a toe receiving member and a releasable system. The toe receiving member is configured to engage the toe portion of the boot. The releasable system is configured to couple the toe receiving member to the ski in at least two independent operational states. A first state corresponds to a state in which the toe receiving member is allowed to freely rotate with respect to the ski. The first state is particularly useful in minimizing the necessary energy output for uphill travel. A second state corresponds to a state in which the toe receiving member is locked with respect to the ski. The second state is particularly useful in high performance downhill travel. The releasable system further includes an engagement mechanism and a switching mechanism. Additional states may also be included such as a third state in which both the toe receiving member and a heel portion of the boot are fixed with respect to the ski.
1. Telemark binding configured to releasably couple a boot to a ski comprising:
a toe receiving member configured to engage a toe portion of the boot;
a releasable system configured to couple the toe receiving member to the ski in at least two independent operational states, wherein a first state corresponds to a state in which the toe receiving member is free to rotate with respect to the ski, and wherein a second state corresponds to a state in which the toe receiving member is locked with respect to the ski, and wherein the releasable system further comprises:
an engagement mechanism configured to selectively engage the toe receiving member in the second state; and
a switching mechanism configured to transition the releasable mechanism between the first and second state, wherein a first force is required to switch the switching mechanism between the first and second state and a second force is required to switch the switching mechanism between the second and first state, and wherein the first and second force are both mechanically translated into a lengthwise linear under-boot force effectuated upon the engagement mechanism so as to selectively engage the engagement mechanism to the toe receiving member in the second state.
2. The binding of claim 1 , wherein the lengthwise under-boot force is translated via a switch cable routed below the toe receiving member.
3. The binding of claim 2 , wherein the engagement mechanism is moveable alone an axis substantially parallel to the lengthwise axis of the ski.
4. A Telemark binding configured to releasably couple a boot to a ski comprising:
a toe receiving member configured to engage a toe portion of the boot;
a releasable system configured to couple the toe receiving member to the ski in at least two independent operational states, wherein a first state corresponds to a state in which the toe receiving member is free to rotate with respect to the ski, and wherein a second state corresponds to a state in which the toe receiving member is locked with respect to the ski, and wherein the releasable system further comprises:
an engagement mechanism configured to selectively engage the toe receiving member in the second state, wherein the engagement mechanism is disposed on a rear lengthwise side of the toe receiving member; and
a switching mechanism configured to transition the releasable mechanism between the first and second state, wherein a first force is required to switch the switching mechanism between the first and second state and a second force is required to switch the switching mechanism between the second and first state, and wherein the first and second force are both mechanically translated into a lengthwise linear under-boot force effectuated upon the engagement mechanism so as to selectively engage the engagement mechanism to the toe receiving member in the second state, and wherein the switching mechanism is disposed on a front lengthwise side of the toe receiving member.
5. The binding of claim 4 , wherein the lengthwise under-boot force is translated via a switch cable routed below the toe receiving member.