Multifunctional ski binding apparatus

Abstract

A ski binding including a toe piece having a base; a rotatable stage disposed on the base and configured for rotation, a first arm and a second arm mounted on the rotatable stage, each arm including a pin; a lever having a state selector, pivotable between locked and unlocked positions; a blocking member movable to disengage at least one of the first and second arm upon rotation of the rotatable stage a predetermined angle; a heel piece spaced aftward from the toe piece including: a heel piece base; a slidable plate configured to receive a ski boot heel; an x-stage extending upwardly from the heel piece base, with an adjustable position along the x-axis; and a heel latch coupled to the x-stage: an Mz release mechanism controlling rotation of the heel latch about the z2-axis; and an My release mechanism controlling rotation of the heel latch about the y2-axis.

Description

MULTIFUNCTIONAL SKI BINDING APPARA TUSCROSS REFERENCE TO RELATED APPLICATIONS

[0001] This Application is a Patent Cooperation Treaty Application that claims the benefit of priority under 35 USC 119 to U.S. Provisional Patent App. No. 63 / 676,815, filed on July 29, 2024 and U.S. Provisional Patent App. No. 63 / 676,871, filed on July 29, 2024, the entire contents of each of which are incorporated by reference herein.BACKGROUND OF THE DISCLOSED SUBJECT MATTERField of the Disclosed Subject Matter

[0002] The disclosed subject matter relates generally to ski bindings. Particularly, the present disclosed subject matter is directed to a multifunctional ski binding apparatus, providing the hybrid functionality of both touring and downhill skiing modes.Description of Related Art

[0003] Existing ski bindings are deficient with regard to several aspects. For instance, current technologies do not prevent pre-release during downhill skiing. Further, current bindings utilize tapered pins secured by mechanical springs, leading to undesirable release modes.Moreover, current technologies lack complete security during normal skiing operations. The toe piece of a traditional ski touring binding is secured to the toe of the boot through the use of arms with tapered pins that fit into tapered inserts in the toe of the boot. The arms may stay open or closed through the use of mechanical springs. In ski mode, these springs are the only thing that may retain the boot in the toe piece. If the boot experiences high enough forces (like during a crash, for example), it can overcome the mechanical springs in the toe piece, causing the arms to open, thus releasing the boot. This construction allows for both desirable and undesirable release modes. The desirable release modes may be lateral rotations about an axis perpendicular to the ski, or forward rotations about the axis of rotation defined by the pins of the toe piece. Theundesirable release modes may be shock loads (such as landing a jump off a cliff, chatter on hard and firm snow) and bending loads (aggressive edging of the ski while turning or stopping). The mechanism has no way to differentiate between these different release modes resulting in unwanted pre-release.

[0004] Therefore, there is a need for improved ski binding apparatuses that may overcome one or more of the above-mentioned problems and / or limitations.SUMMARY OF THE DISCLOSED SUBJECT MATTER

[0005] The purpose and advantages of the disclosed subject matter will be set forth in and apparent from the description that follows, as well as will be learned by practice of the disclosed subject matter. Additional advantages of the disclosed subject matter will be realized and attained by the methods and systems particularly pointed out in the written description and claims hereof, as well as from the appended drawings.

[0006] This summary is provided to introduce a selection of concepts in a simplified form, that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter. Nor is this summary intended to be used to limit the claimed subject matter’s scope.

[0007] To achieve these and other advantages and in accordance with the purpose of the disclosed subject matter, as embodied and broadly described, the disclosed subject matter includes a ski binding system comprising: a toe piece including: a base, the base defining a zi- axis perpendicular thereto; a rotatable stage disposed on a top surface of the base, the rotatable stage configured for rotation about the zi-axis; a first arm and a second arm mounted on the rotatable stage, each arm including a pin configured to releasably engage a ski boot when in a first position, at least one arm movable to a second position to disengage the ski boot and wherein the pins define a yi-axis extending therebetween when in the first position; a lever having a state selector pivotably coupled thereto, the state selector movable between locked andunlocked positions, the lever configured to displace at least one of the first and second arm between the first position and the second position, the rotatable stage inhibited from rotation about the zi-axis when the state selector is in the locked position; a blocking member engaging at least one of the first arm and the second arm when in the first position, the blocking member inhibiting displacement of at least one of the first arm and the second arm to the second position; wherein the blocking member is movable to disengage at least one of the first and second arm upon rotation of the rotatable stage a predetermined angle about the zi-axis; a heel piece spaced aftward from the toe piece along an x-axis, the heel piece including: a heel piece base defining a Z2-axis extending upwardly therefrom; a slidable plate configured for lateral displacement, and wherein the slidable plate is configured to receive a heel of the ski boot; an x-stage extending upwardly along the Z2-axis from the heel piece base, the x-stage coupled to the heel piece base with an adjustable position along the x-axis; and a heel latch coupled to the x-stage, the heel latch configured to rotate about a y2-axis and the Z2-axis and including: an adjustable Mzrelease mechanism controlling rotation of the heel latch about the Z2-axis ; and an adjustable Myrelease mechanism controlling rotation of the heel latch about the y2-axis.

[0008] In some embodiments, when the heel latch is rotated forward about the y2-axis, with the first and second arm of the toe piece in the first position and the state selector is in the unlocked position, the system is in a ski-mode.

[0009] In some embodiments, when the heel latch is rotated aftward about the y2-axis, with the first and second arm in the first position and the state selector in the locked position, the system is in a touring-mode.

[0010] In some embodiments, the heel latch includes a first heel elevator configured to receive the heel of the ski boot, the first heel elevator spaced a first distance from the heel piece base.

[0011] In some embodiments, the heel latch includes a second heel elevator rotatably coupled thereto and spaced a second distance from the heel piece base, the second heel elevator configured to pivot between a stowed position and an extended position.

[0012] In some embodiments, the first heel elevator and second heel elevator are axially aligned along the heel latch.

[0013] In some embodiments, the second heel elevator is configured to receive the heel of the ski boot when in the extended position.

[0014] In some embodiments, rotation of the Mzrelease mechanism beyond a predetermined angle about the Z2-axis disengages the heel latch from the ski boot.

[0015] In some embodiments, the pins of the first arm and the second arm are configured to allow the ski boot to rotate about the yi-axis a predetermined angle when in touring-mode.

[0016] In some embodiments, the blocking member is movable to disengage at least one of the first and second arm upon rotation of the rotatable stage of a predetermined angle about the zi-axis.

[0017] To achieve these and other advantages and in accordance with the purpose of the disclosed subject matter, as embodied and broadly described, the disclosed subject matter includes a heel piece of a ski binding including: a heel piece base defining a Z2-axis extending perpendicularly upward therefrom; a slidable plate, the slidable plate configured for lateral displacement, and configured to receive a heel of a ski boot; an x-stage extending upwardly from the heel piece base along the Z2-axis, the x-stage coupled to the heel piece base with an adjustable position along an x-axis; a heel latch coupled to the x-stage and configured to rotate about a y2-axis perpendicular to the x-axis and the Z2-axis, the heel latch including: an adjustable Mzrelease mechanism controlling rotation of the heel latch about the Z2-axis; an adjustable Myrelease mechanism controlling rotation of the heel latch about the y2-axis.

[0018] In some embodiments, the heel latch is configured to move from a first open position to receive the heel of the ski boot to a second closed position wherein the heel latch engages the heel of the ski boot.

[0019] In some embodiments, the heel latch includes a first heel elevator projecting outwardly along the x-axis from the heel latch and configured to retain the heel of the ski boot in the second closed position and receive the ski boot heel in the first open position.

[0020] In some embodiments, the heel latch includes a second heel elevator rotatably coupled thereto, the second heel elevator configured to pivot between a stowed position and an extended position and wherein the second heel elevator is configured to receive the ski boot heel in the extended position.

[0021] In some embodiments, the second heel elevator is disposed above the first heel elevator along the Z2-axis when the heel latch is in the second closed position.

[0022] In some embodiments, the heel latch is generally parallel with the x-axis in the first open position and generally parallel to the Z2-axis in the second closed position.

[0023] In some embodiments, the adjustable Myrelease mechanism is disposed within the heel latch.

[0024] In some embodiments, the adjustable Mzrelease mechanism is disposed within the x-stage.

[0025] In some embodiments, the Mzrelease mechanism and Myrelease mechanism are each configured to be independently adjustable to release the ski boot via a rotation about the Z2- axis and y2-axis, respectively.

[0026] In some embodiments, the Mzrelease mechanism and Myrelease mechanism each comprise at least one spring configured to independently adjust a required load to release the ski boot from the Mzrelease mechanism and the Myrelease mechanism.

[0027] To achieve these and other advantages and in accordance with the purpose of the disclosed subject matter, as embodied and broadly described, the disclosed subject matter includes a toe piece of a ski binding including: a base, the base defining a zi-axis extending perpendicular therefrom; a rotatable stage disposed on a top surface of the base, the rotatable stage configured for rotation about the zi-axis; a first arm and a second arm mounted on the rotatable stage, each arm including a pin configured to releasably engage a ski boot when in a first position, at least one arm movable to a second position to disengage the ski boot and wherein the pins define a Myrotational yi-axis extending therebetween when in the first arm and the second are in the first position; a lever having a state selector pivotably coupled thereto, the state selector movable between locked and unlocked positions, the lever configured to displace at least one of the first and second arm between the first position and the second position, the rotatable stage inhibited from rotation about the zi-axis when the state selector is in the locked position; a blocking member engaging at least one of the first and second arm when in the first position, the blocking member inhibiting displacement of at least one of the first and second arm to the second position; wherein the blocking member is movable to disengage at least one of the first and second arm upon rotation of the rotatable stage a predetermined distance about the zi- axis.

[0028] In some embodiments, the blocking member is disposed below the rotatable stage.

[0029] In some embodiments, the blocking member is displaced linearly while the rotatable stage rotates about the zi-axis.

[0030] In some embodiments, the blocking member comprises a blocker tab portion configured to engage an arm tab portion disposed on at least one of the first arm and the second arm when in the first position.

[0031] In some embodiments, the lever is configured to displace the blocking member to disengage the blocker tab portion from the arm tab portion and force the first and second arm to the second position upon displacement of the lever.

[0032] In some embodiments, the second arm is operatively coupled to the first arm and configured to move from the first position to the second position when the blocking member releases the first arm.

[0033] In some embodiments, the blocking member is disposed at a midpoint of the first and second arms.

[0034] In some embodiments, the blocking member is movable to disengage the first and second arm upon rotation of the rotatable stage of between about 5 and about 20 degrees about the zi-axis.

[0035] In some embodiments, the rotatable stage comprises a cam profile which linearly displaces the blocking member upon rotation of the rotatable stage about the zi-axis.

[0036] In some embodiments, the state selector is configured to engage the base when in the locked position, thereby preventing the rotatable stage from rotating about the zi-axis.

[0037] In some embodiments, the lever is configured to engage the first arm and the second arm when the state selector is in the locked position, thereby preventing the first arm and the second arm from moving to the second position.

[0038] Both the foregoing summary and the following detailed description provide examples and are explanatory only. Accordingly, the foregoing summary and the following detailed description should not be considered to be restrictive. Further, features or variations may be provided in addition to those set forth herein. For example, embodiments may be directed to various feature combinations and sub-combinations described in the detailed description. It is to be understood that both the foregoing general description and the following detailed descriptionare exemplary and are intended to provide further explanation of the disclosed subject matter claimed.BRIEF DESCRIPTION OF THE DRAWINGS

[0039] A detailed description of various aspects, features, and embodiments of the subject matter described herein is provided with reference to the accompanying drawings, which are briefly described below. The drawings are illustrative and are not necessarily drawn to scale, with some components and features being exaggerated for clarity. The drawings illustrate various aspects and features of the present subject matter and may illustrate one or more embodiment s) or example(s) of the present subject matter in whole or in part.

[0040] Furthermore, the drawings may contain text or captions that may explain certain embodiments of the present disclosure. This text is included for illustrative, non-limiting, explanatory purposes of certain embodiments detailed in the present disclosure.

[0041] FIG. l is a perspective view of a toe piece of a ski binding apparatus in accordance with embodiments of the present disclosure.

[0042] FIG. 2 is a section view of a toe piece of a ski binding apparatus in accordance with embodiments of the present disclosure.

[0043] FIG. 3 is a bottom view of a toe piece of a ski binding apparatus in accordance with embodiments of the present disclosure.

[0044] FIG. 4 is a bottom view of a toe piece of a ski binding apparatus rotated to a predefined position for an Mzrelease, in accordance with embodiments of the present disclosure.

[0045] FIG. 5A is a perspective view of a heel piece of a ski binding apparatus in a closed position in accordance with embodiments of the present disclosure.

[0046] FIG. 5B is a side section view of the Myand Mzrelease mechanisms of the heel piece in accordance with embodiments of the present disclosure.

[0047] FIG. 6 is a perspective view of a heel piece of a ski binding apparatus in an open position in accordance with embodiments of the present disclosure.

[0048] FIGS. 7A-7B are side and perspective views of a heel piece of a ski binding apparatus in an open position showing clearance with a portion of a ski boot in accordance with embodiments of the present disclosure.

[0049] FIGS. 8A-8B are side and perspective views of a heel piece of a ski binding apparatus with a portion of a ski boot in accordance with embodiments of the present disclosure.

[0050] FIGS. 9A-9B are side and perspective views of a heel piece of a ski binding apparatus in a closed position providing a platform for a portion of a ski boot in accordance with embodiments of the present disclosure.

[0051] FIG. 10 is a side view of a heel piece of a ski binding apparatus in a closed position with the second heel elevator deployed to receive a heel of a portion of a ski boot in accordance with embodiments of the present disclosure.

[0052] FIG. 11 is a perspective view of a heel piece and a toe piece aligned along an x- axis in accordance with embodiments of the present disclosure.

[0053] FIG. 12A is a side view of a ski binding showing the Myrelease of the heel piece in accordance with embodiments of the present disclosure.

[0054] FIG. 12B is a planform view showing the Mzrelease of the heel piece in accordance with embodiments of the present disclosure.

[0055] FIG. 13 is a bottom view of a heel piece showing a fore / aft preload mechanism in accordance with embodiments of the present disclosure.

[0056] The accompanying drawings, which are incorporated in and constitute part of this specification, are included to illustrate and provide a further understanding of the method and system of the disclosed subject matter. Together with the description, the drawings serve to explain the principles of the disclosed subject matter.DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

[0057] As a preliminary matter, it will readily be understood by one having ordinary skill in the relevant art that the present disclosure has broad utility and application. As should be understood, any embodiment may incorporate only one or a plurality of the above-disclosed aspects of the disclosure and may further incorporate only one or a plurality of the abovedisclosed features. Furthermore, any embodiment discussed and identified as being “preferred” is considered to be part of a best mode contemplated for carrying out the embodiments of the present disclosure. Other embodiments also may be discussed for additional illustrative purposes in providing a full and enabling disclosure. Moreover, many embodiments, such as adaptations, variations, modifications, and equivalent arrangements, will be implicitly disclosed by the embodiments described herein and fall within the scope of the present disclosure.

[0058] Accordingly, while embodiments are described herein in detail in relation to one or more embodiments, it is to be understood that this disclosure is illustrative and exemplary of the present disclosure and are made merely for the purposes of providing a full and enabling disclosure. The detailed disclosure herein of one or more embodiments is not intended, nor is to be construed, to limit the scope of patent protection afforded in any claim of a patent issuing here from, which scope is to be defined by the claims and the equivalents thereof. It is not intended that the scope of patent protection be defined by reading into any claim a limitation found herein that does not explicitly appear in the claim itself.

[0059] Thus, for example, any sequence(s) and / or temporal order of steps of various processes or methods that are described herein are illustrative and not restrictive. Accordingly, it should be understood that, although steps of various processes or methods may be shown and described as being in a sequence or temporal order, the steps of any such processes or methods are not limited to being carried out in any particular sequence or order, absent an indication otherwise. Indeed, the steps in such processes or methods generally may be carried out in variousdifferent sequences and orders while still falling within the scope of the present invention. Accordingly, it is intended that the scope of patent protection is to be defined by the issued claim(s) rather than the description set forth herein.

[0060] Additionally, it is important to note that each term used herein refers to that which an ordinary artisan would understand such term to mean based on the contextual use of such term herein. To the extent that the meaning of a term used herein — as understood by the ordinary artisan based on the contextual use of such term — differs in any way from any particular dictionary definition of such term, it is intended that the meaning of the term as understood by the ordinary artisan should prevail.

[0061] Furthermore, it is important to note that, as used herein, “a” and “an” each generally denotes “at least one” but does not exclude a plurality unless the contextual use dictates otherwise. When used herein to join a list of items, “or” denotes “at least one of the items” but does not exclude a plurality of items of the list. Finally, when used herein to join a list of items, “and” denotes “all of the items of the list”.

[0062] The following detailed description refers to the accompanying drawings.Wherever possible, the same reference numbers are used in the drawings and the following description to refer to the same or similar elements. While many embodiments of the disclosure may be described, modifications, adaptations, and other implementations are possible. For example, substitutions, additions, or modifications may be made to the elements illustrated in the drawings, and the methods described herein may be modified by substituting, reordering, or adding stages to the disclosed methods. Accordingly, the following detailed description does not limit the disclosure. Instead, the proper scope of the disclosure is defined by the appended claims. The present disclosure contains headers. It should be understood that these headers are used as references and are not to be construed as limiting upon the subjected matter disclosed under the header.

[0063] The present disclosure includes many aspects and features. Moreover, while many aspects and features relate to, and are described in the context of a ski binding apparatus, embodiments of the present disclosure are not limited to use only in this context.

[0064] Reference will now be made in detail to exemplary embodiments of the disclosed subject matter, an example of which is illustrated in the accompanying drawings. The method and corresponding steps of the disclosed subject matter will be described in conjunction with the detailed description of the system.Toe Piece

[0065] The apparatus may include a toe binding piece or assembly, with a rotatable stage, a front holding device, a slidable blocking element, a manual release lever, a cam-following profile, and a heel piece for torque control. The ski binding apparatus may offer predetermined rotational release points or degrees (Mzand My), and ensures efficient release under predetermined torque conditions, thus enhancing safety and performance for snow skiers. Further, the disclosed ski binding apparatus may be designed for use in both uphill and downhill modes on skis. The disclosed ski binding apparatus may be configured to allow for switching between these modes while ensuring safety, performance, and user comfort during both ascent and descent in various snow conditions.

[0066] Further, the disclosed apparatus may include a mechanism to differentiate between these different release modes resulting in unwanted pre-release while maintaining the main advantage of traditional ski touring bindings. The method of securing the toe of a ski boot 101 to the toe piece 100 of a binding via tapered pins is advantageous in the realm of ski touring, for it provides an excellent mechanism for walking uphill. The pivot point location is natural, there is minimal friction, and it is a relatively robust mechanism for interfacing in a harsh environment plagued with ice, snow, and dirt. This disclosed apparatus maintains this advantage and independently solves the issue of pre-releasing in the undesirable release modes describedabove. In various embodiments, components as described herein may be formed from a plurality of materials, such as high-density polyethylene (HDPE), polyoxymethylene (POM), aluminum of various chemical composition (such as 7075), steel of various chemical composition and the like. In various embodiments, any component described herein may be formed as a skeletonized structure to reduce weight while maintaining adequate rigidity and performance characteristics.

[0067] Referring now to FIG. 1, a perspective view of a toe piece 100 of a ski binding apparatus is shown. Toe piece 100 may include a base 104. Base 104 may be a generally planar component having a top surface spaced from a bottom surface, defining a thickness therebetween. Base 104 may be mounted on a portion of a top surface of a snow ski such that the top surface of base 104 is parallel to the top surface of the ski. Base 104 may be configured to rotatably couple to a rotatable stage 108 positioned on a top surface thereof. Rotatable stage 108 may be configured to rotate relative to the base 104 which is fixedly coupled to the ski, therefore rotatable stage 108 may be configured to rotate relative to the ski. A zi-axis may extend perpendicularly from the top surface of ski through the center point of rotatable stage 108, thus rotatable stage 108 can be described as rotating about the zi-axis while base 104 remains fixed to the top surface of the ski.

[0068] Rotatable stage 108 may be configured to rotate about zi-axis relative to the base 104 via one or more corresponding rails. In various embodiments, rotatable stage 108 may be configured to ride on one or more bearings, such as section bearings, roller bearings, toroidal bearings, ball bearings, or the like. In various embodiments, rotatable stage 108 may be snapped into place on base 104 via one or more compliant members, such as retaining edges or the like. Rotatable stage 108 may be generally positioned in a horizontal plane parallel to the top of the ski and rotate within said horizontal plane.

[0069] With continued reference to FIG. 1, toe piece 100 may include a first arm 112a and a second arm 112b. First arm 112a may extend in an arcuate shape from a central portion ofrotatable stage 108 or a cavity formed therein and extend upwardly and outwardly terminating in an upper end. First arm 112a may be formed from generally linear segments joined at an elbow, such that a first segment extends upwardly and diagonally from the central portion of rotatable stage 108 and a second linear segment may extend generally upwardly from the elbow, terminating in a second end. The upper end of first arm 112a may include a pin 116a extending inwardly from the upper end of first am 112a. In various embodiments, pin 116a may include a conical tip, such that a proximal portion of the pin 116a may be wider than a distal portion of pin 116a. In various embodiments pin 116a may include a planar cone, where the proximal end linearly decreases in width towards the distal end. In various embodiments, pin 116a may include an arcuate conical surface such that the side profile of pin 116a may decrease nonlinearly from the proximal end to the distal end. The profile of pin 116a may be configured to interfere and interact with a receptacle on a ski boot when in the various modes to be described herein. For example, and without limitation, arm 112a may be secured to a ski boot by pin 116a when in a first position. Similarly, a second arm 112b may extend in an arcuate shape from a central portion rotatable stage 108 or a cavity formed therein and extend upwardly and outwardly terminating in an upper end. Second arm 112b may be a mirror image (e.g. symmetrical) of first arm 112a across an x-axis, which generally runs from the front end of the ski to the aft end of the ski, perpendicular to the zi-axis, where a lower end is positioned proximate the central cavity of rotatable stage 108 opposite the lower end of first arm 112a, and second arm 112b may extend upwardly and outwardly in an arcuate path to terminate at a distal end and a pin 116b. Pin 116b may extend inwardly toward pin 116a. In some embodiments the first and second arm are integrally connected as a unitary structure (with a arcuate middle portion bridging the space therebetween).

[0070] The upper end of second arm 112b may include a pin 116b extending inwardly from the upper end of second arm 112b. In various embodiments, pin 116b may include aconical tip, such that a proximal portion of the pin 116b may be wider than a distal portion of pin 116b. In various embodiments pin 116b may include a planar cone, where the proximal end linearly decreased in width towards the distal end. In various embodiments, pin 116b may include an arcuate conical surface such that the side profile of pin 116b may decrease nonlinearly from the proximal end to the distal end. The profile of pin 116b may be configured to engage with a corresponding receptacle on a ski boot when in the various modes to be described herein. For example, and without limitation, second arm 112b may be secured to a ski boot by pin 116b when in a first position for example.

[0071] First arm 112a and second arm 112b may be coupled to rotatable stage 108 and rotate with rotatable stage 108 about the zi-axis. First arm 112a and second arm 112b may be coupled to rotatable stage 108 such that the relative position of first arm 112a relative to second arm 112b does not change during rotation about the zi-axis. At least one of first arm 112a and second arm 112b may include a tab portion extending from a lower end thereof and parallel to the plane of the ski. The tab portion may be formed integrally with the first arm 112a and / or the second arm 112b and have a generally rectilinear shape. In various embodiments, first arm 112a and second arm 112b may be pivotably coupled to rotatable stage 108 such that each arm may be individually capable of pivoting about an axis relative to rotatable stage, affecting a first closed state, and a second open state, to be described hereinbelow. First arm 112a and second arm 112b may be configured to pivot together, such as through a linkage. For example, and without limitation, the lower ends of first arm 112a and second arm 112b may be configured to be released from a first position so one or more external forces move the arms to the second position, such as the force applied to the pins 116a, 116b from ski boot 101. For example, and without limitation, the lower ends of first arm 112a and second arm 112b may be configured to be forced from a first position or a second position to another position based on rotation of the rotatable stage 108. In various embodiments, first arm 112a may be configured to affect pivotingof second arm 112b when first arm 112a pivots. For example, and without limitation, first arm 112b may be coupled to second arm 112b such that when first arm 112a pivots from a first closed position to a second open position, second arm 112b pivots the same angular distance. In various embodiments, first arm 112a and second arm 112b may be coupled via a hinge, such as a living hinge, or a compliant member configured to deflect or elastically deform in a first position and return to an initial state in a second position, or vice versa. In various embodiments, first arm 112a and second arm 112b may be configured to pivot from a first closed state, where the pins 116a and 116b are aligned along a yi-axis formed therebetween, to a second open position, where each arm pivots outwardly, releasing the ski boot.

[0072] Second arm 112b may be operatively coupled to first arm 112a through a linkage and configured to move from a first closed position to a second open position, wherein the pins 116a and 116b are aligned along a yi-axis perpendicular to both the x-axis and the zi-axis. First arm 112a and second arm 112b may be configured to operate between a first position where the ski boot is retained by the pins 116a and 116b and a second position, where the arms rotate outwardly and release the ski boot.

[0073] With continued reference to FIG. 1, toe piece 100 may include a movable lever 120 and a state selector 124 rotatably coupled thereto. The lever 120 may be coupled to rotatable stage 108 and configured to rotate about the zi-axis therewith. In various embodiments, lever 120 may be configured to pivot relative to the horizontal plane of the rotatable stage 108 as well. Lever 120 may extend downwardly within a central opening of rotatable stage 108 from a proximal end proximate the state selector 124 to a distal end positioned proximate the central cavity of rotating state 108 and the lower ends of first arm 112a and second arm 112b. Lever 120 may include a forked distal end terminating in an upper finger 121 and a lower finger 122. Upper finger 121 may extend above the midpoint of the first arm 112a and second arm 112b and contact the arms when the state selector 124 is locked, thereby locking the arms in the firstclosed position through a force exerted downward on them. Lower finger 122 may extend under the midpoint of first arm 112a and second arm 112b and is positioned proximate the blocking member 136. Lower finger 122 may be configured to engage with the blocking member 136 when lever 120 is depressed and further engage with the first arm 112a and / or second arm 112b forcing the arms from the first closed position to the second open position. The lower finger 122 may be configured to axially translate relative to the pivot point of lever 120 when the lever 120 is manually interacted with by a user.

[0074] State selector 124 may be pivotably coupled to lever 120 and configured to be switched from an unlocked position to a locked position. State selector 124 may include a profile portion configured to swing through an arc based on the switchable position of the state selector 124. For example, and without limitation, when state selector 124 is in an unlocked position, the profile portion of state selector 124 may be aligned with lever 120 such that the profile portion is upwardly stowed and out of the way of base 104 such that the rotatable stage 108 is free to rotate, this may be called “ski-mode.” When state selector 124 is in ski-mode, rotatable stage 108 may be free to rotate relative to base 104 a predetermined distance. When state selector 124 is interacted with and moved to a locked position, called “touring-mode,” the profile portion of state selector 124 may slot into corresponding recesses in base 104, thereby arresting the rotational motion of rotatable stage 108. When in touring-mode, state selector 124 may stop rotatable stage 108 from rotating relative to base 104 due to the profile portions being fixedly retained in the corresponding recessed in base 104. Base 104 may include a series of scalloped recesses 105 protruding upwardly therefrom that correspond to the state selector 124. Each of the scalloped recesses 105 may be configured to ratchet the upper finger 121 of lever 120 downward onto the first arm 112a and second arm 112b when in touring mode, thereby both arresting the rotatable stage 108 from rotating, and further locking the first arm 112a and 112b into the first closed position about the ski boot. The scalloped recesses 105 may be configured to reducerelative play of the first arm 112a and second arm 112b relative to rotatable stage 108 by forcing the arms downward in their first closed position, affecting a more rigid overall structure for user comfort and security from accidental pivoting of the arms into the second open position.

[0075] With continued reference to FIG. 1, toe piece 100 may include brake 128. Brake 128 may be pivotably coupled to base 104. Brake 128 may include two L-shaped components that extend outwardly and aft of toe piece 100 such that when a ski boot is positioned within toe piece 100, the arms of brake 128 are held above the top plane of the ski. When a ski boot is removed from toe piece 100, as will be described during one of the many release regimes, brake 128 may pivot downward such that the arms protrude past the top plane of the ski and can catch snow, ice or ground features and act as an anchor such that the ski cannot slide down an inclined plane. Brake 128 may include a central tab portion disposed proximate the center of rotatable stage 108 configured to retain the brake 128 in an upright position until release of the ski boot. Break 128 may include two arms that terminate in brake caps 128a having generally angular edges configured to catch snow, ice or ground features to effectively anchor a ski from sliding down an inclined plane, such as down a snowy mountain, when the toe piece 100 releases the ski from the ski boot. Brake 128 may be pivotably coupled to base 104 via a bias mechanism 132. Bias mechanism 132 may be configured to pivot the arms of brake 128 and brake caps 128a downward relative to the top plane of the ski under spring tension or through interference with one or more bosses when released from the ski boot.

[0076] Referring now to FIG. 2, a section view of toe piece 100 are shown. Toe piece 100 may include a blocking member 136. Blocking member 136 may be positioned within a central cavity of rotatable stage 108. Blocking member 136 may be retained within one or more retaining features of rotatable stage 108 and configured to linearly translate relative to the rotatable stage 108. Blocking member 136 may be biased to a forward most position by a spring or other biasing component configured to apply forward tension to a blocking member 136 whenin a first position. Blocking member 136 may include a tab portion extending upwardly through rotatable stage 108 and forward. Tab portion of blocking member 136 may be configured to interfere with at least one of first arm 112a and second arm 112b. Tab portion of blocking member 136 may be configured to retain tab portion extending aftward from at least one of the first arm 112a and second arm 112b, thereby securing the arms in a first closed position.

[0077] Blocking member 136 may be configured to translate axially aft when engaged by the lower finger 122 of lever 120 when manually depressed, as can be seen in FIG. 2. For example, and without limitation, when lever 120 is depressed downward, such as being pushed down by the ski pole of a user, the distal end of lower finger 122 of lever 120 pushes blocking member 136 in an aftward direction, disengaging the tab portion of blocking member 136 from the tab portions of first arm 112a and second arm 112b. The disengagement of blocking member 136 from the first arm 112a and second arm 112b unlocks the arms and allows the arms to pivot from the first closed position to a second open position and in turn allowing the pins 116a, 116b to exit the recesses on the ski boot, thereby disengaging the ski boot from the toe piece 100. In various embodiments, when the lever 120 is released, the biasing component operatively coupled to the blocking member 136 may push the blocking member 136 back forward, thus returning the first arm 112a and second arm 112b to the first closed position or allowing the first arm 112a and second arm 112b to return to the first closed position.

[0078] Referring now to FIG. 3, a bottom planform view of toe piece 100 is shown where the rotatable stage 108 is aligned along an x-axis with base 104. Rotatable stage 108 is shown in the aligned position with the first arm 112a and second arm 112b in the first closed position. In this configuration, the rotatable stage 108 is unlocked and free to rotate about the zi-axis. Blocking member 136 can be seen on the underside of the rotatable stage 108. Blocking member 136 includes two cams 137 extending downwardly therefrom. Cams 137 may be cylinders having a curved or arcuate sidewall configured to slide or roll against the interior edge of camprofile 140. Cams 137 may be configured to rotate about a central axis extending therethrough, be bearings themselves, or be configured with a predetermined coefficient of friction such that cams 137 are not bound up by cam profile 140. Blocking member 136 may include any number of cams 137, such as a single cam 137 positioned centrally and extending downwardly therefrom. Blocking member 136 may include the same size cams or differently sized cams 137. For example, and without limitation, when cams 137 are of different sizes, such as different radii, the rotation in either direction may be customized to release the ski boot upon different angular displacement based on said radii of each of cams 137. The base 104, now seen from below may include a cam profile 140 coupled thereto. Cam profile 140 may be fixedly attached to a rim portion of the bottom of base 104 and extend across the bottom thereof. Cam profile 140 may have an opening defining an interior edge configured to retain cams 137 disposed on the underside of blocking member 136, which extend therethrough. The cams 137 of blocking member 136 may be configured to be pushed into an interior edge of the cam profile 140 by the biasing component of the blocking member 136. When the rotatable stage 108 is oriented in a straight position relative to base 104, the cams 137 of blocking member 136 may be disposed at a shorter end of the cam profile 140 and blocking member 136 may be held in the locked position on first arm 112a and second arm 112b.

[0079] Referring now to FIG. 4, a bottom planform view of toe piece 100 is shown with rotatable stage 108 rotated about zi-axis relative to base 104. As shown in FIG. 4, as rotatable stage 108 rotates, it rotates blocking member 136 therewith, the cams 137 of blocking member 136 are dragged across the interior edge cam profile 140, which increases in lateral width, thereby pushing blocking member 136 aftward, and eventually releases the tab portion of blocking member 136 from contact with the first arm 112a or the second arm 112b. In this configuration, rotation of rotatable stage 108 therefore unlocks the arms 112a, 112b at a predetermined angular displacement of about 5 to about 20 degrees. In various embodiments therotatable stage 108 may be configured to unlock the arms at a rotation of about 12 degrees. One would appreciate that the predetermined angle at which the blocking member 136 unlocks the first arm 112a and second arm 112b is determined by a combination of the cam 137 of blocking member 136, the cam profile 140, and the size and shape of tab portions of the blocking member 136 and at least one of the first arm 112a and the second arm 112b. In various embodiments, as blocking member 136 is pushed aftward via the interaction of the cams 137 with cam profile 140, the biasing component is compressed between blocking member 136 and the rotatable stage 108. In various embodiments, the biasing component may force blocking member 136 forward once rotation is stopped or once the ski boot is disengaged from the toe piece. In various embodiments, the biasing component acting on the blocking member 136 may force the rotatable stage 108 to rotate back to the aligned position with base 104 such that the cams 137 again rest at the shorter edge of cam profile 140 at rest.Heel Piece

[0080] Referring now to FIG. 5 A, a perspective view of a heel piece 200 in a closed position is shown. Heel piece 200 may be aligned along the x-axis aftward of toe piece 100 and positioned on a top surface of a ski in an arrangement shown in FIGS. 11, 12A and 12B. In an initial resting position, heel piece 200 may be axially aligned with toe piece 100 and spaced therefrom approximately the length of a ski boot as shown in FIGS. 12A and 12B while the ski is not flexed. Heel piece 200 may include a heel piece base 204 having an aft end and a forward end, defining a generally planar surface therebetween. Heel piece base 204 may be fixedly coupled to the top surface of the ski via one or more mechanical fasteners such as bolts, screws, adhesives, or the like.

[0081] Heel piece base 204 may include one or more components configured to adjust the axial position of heel piece 200 along the x-axis, for example, to accommodate differing sized ski boots for users with different foot sizes or accommodate differing flexibility of skis. Invarious embodiments, heel piece base 204 may include a threaded rod positioned at the aft end thereof configured to interact with a threaded portion of an x-stage 212 which can adjust the x- axis position of x-stage 212 via turning the threaded rod. A Z2-axis may extend perpendicularly from the planar top surface of the heel piece base 204, orthogonal to the x-axis. In various embodiments the heel piece base 204 may be capable of mounting the x-stage 212 with an adjustability of about 27.5 mm from the aft end of the heel piece base 204.

[0082] With continued reference to FIG. 5A, heel piece 200 includes a slidable plate 208, which may also be called an anti-friction device (AFD) slidably coupled to the forward end of the heel piece base 204. Slidable plate 208 may be configured to selectably translate along the x- axis and laterally relative to the x-axis. In various embodiments, slidable plate 208 may be configured to translate along the x-axis via interaction with a threaded rod, such that turning the threaded rod may adjust the x-axis position of the slidable plate 208. In various embodiments, a similar arrangement may be utilized to adjust the lateral position of slidable plate 208. In various embodiments, slidable plate 208 may be laterally adjusted by loosening one or more mechanical fasteners and retightening when a desired lateral position is achieved. Slidable plate 208 may include a planar top surface configured to receive the heel of the ski boot 101 as shown in FIGS. 7A-7B (with the heel latch 216 in the open position). The planar top surface of slidable plate 208 may be configured with a predetermined coefficient of friction such that a desired frictional force between the slidable plate 208 and the ski boot is achieved. In this way, slidable plate 208 may be configured to retain the heel of the ski boot 101 from laterally sliding during skiing. Slidable plate 208 may be configured with an adjustable height, such that the top surface of the slidable plate is spaced from the heel piece base 204 of a predetermined distance, such as about 24 mm.

[0083] With continued reference to FIG. 5A, heel piece 200 includes an x-stage 212. X- stage 212 may be slidably coupled to heel piece base 204. X-stage 212 may be selectably coupled to heel piece base 204 at a predetermined position along the x-axis, again toaccommodate differing sized ski boots. X-stage 212 may be retained to heel piece base 204 via the threaded rod described above. X-stage 212 may include slot portions configured to capture corresponding rails of the lateral edges of heel piece base 204, coupling x-stage 212 to heel piece base 204 by capturing the rails via the slotted portions. X-stage 212 may include an upright portion extending along the Z2-axis from heel piece base 204. The upright portion may terminate in a yoke portion oriented laterally relative to the x-axis. The upright portion’s yoke may have two forked struts spaced from one another having openings formed therein and configured to receive one or more pins or rods. The upright portion of x-stage 212 may be configured to pivotably retain a heel latch 216. Heel latch 216 may pivot about a y2-axis defined by a rod extending between the yoke of the upright. Heel latch 216 may be configured to selectively pivot about the y2-axis when a predetermined torque or force is applied thereto, as controlled by the Myrelease mechanism, which will be described in greater detail below. Heel latch 216 may be biased into either a closed position, as shown in FIG. 5 A-5B, or an open position, shown in FIG. 6. Heel latch 216 may include a retaining feature extending forward when in the closed position, said retaining feature (the latch itself) configured to lock the heel of a ski boot to the heel piece 200 when closed, and allow rotation of the heel of the ski boot about the yi-axis (the pins 116a, 116b of toe piece 100) when opened. Heel latch 216 may be complementarily shaped to the heel of a ski boot, such as having an arcuate cutout matched to the arc of the heel of a ski boot. In various embodiments, when in touring mode, the heel latch 216 may be closed without the presence of the heel of ski boot 101, the heel may then be received on a top surface of heel latch 216 forward protrusion, acting as a first heel elevator, for example, when walking uphill within the binding.

[0084] Heel latch 216 may be fixedly coupled to Myrelease mechanism 218, which extends therefrom. Myrelease mechanism 218 may be configured to pivot about y2-axis with heel latch 216. Myrelease mechanism 218 may be configured to adjust the force or torquerequired to move the heel latch 216 from the closed position to the open position about the y2- axis. In a closed position, Myrelease mechanism 218 may be generally upright and extend along the Z2-axis , or at least diagonally upward relative to the plane of the ski. Myrelease mechanism may include a second heel elevator 224 pivotably coupled thereto. The second heel elevator 224 may be biased between a stowed position and an extended position. In the stowed position, the generally U-shaped second heel elevator may be aligned with the Myrelease mechanism and in the extended position, may extend forward along the x-axis and be configured to receive the bottom of the heel of the ski boot, as shown in FIG. 10.

[0085] With continued reference to FIG. 5 A, heel piece 200 may include a handle 220 positioned at a distal end of the Myrelease mechanism. Handle 220 may be fixed to the tubular housing of the Myrelease mechanism 218 at a selectable position, for example by an integral collar circumscribing the Myrelease mechanism 218 and set in place by a mechanical fastener, such as a screw, to tighten the collar about the tubular housing. Handle 220 may include a projection extending past the distal end of the tubular housing of Myrelease mechanism 218 positioned to allow user interaction by a gloved hand of the skier or the tip of a ski pole. For example, and without limitation, the handle 220 may include a notch formed in the distal portion thereof, said notch sized to received a finger of a glove or the ski pole to pull the heel latch 216 from the open position to the closed position. For example, and without limitation, the handle 220 may include a recess or other cutout formed in a front surface thereof, said recess sized to receive the tip of a ski pole such that a user can force the heel latch 216 to pivot about the y2-axis from its closed position to the open position through an applied linear force aftward.

[0086] With continued reference to FIG. 5 A, heel piece 200 may include a Mzrelease mechanism 217 extending aftward of the upright portion of x-stage 212. Mzrelease mechanism may be configured to control the force or torque required to rotate the heel latch 216 about the Z2-axis , thereby controlling the release force required to pivot the heel of the ski boot laterallyoutward in either direction to disengage the heel from the heel latch 216. Mzrelease mechanism 217 may include a generally tubular housing extending aftward of the upright of x-stage along the x-axis. Mzrelease mechanism 217 may be constrained to the x-stage or be integral therewith. For example, and without limitation, x-stage 212 may provide for a housing of both Mzrelease mechanism and the internal components thereof, and selectably position said Mzrelease mechanism 217 along the x-axis.

[0087] Referring now to FIG. 5B, a side section view of heel piece 200 is shown with the internal components visible. Myrelease mechanism 218 extends along the upper tubular shaft of heel latch 216. Myrelease mechanism 218 may be formed by one or more biasing components, here shown as a spring, compressed between a fixed end proximate the pivoting axis, the y2-axis, and an adjustable threaded component 218a. By turning threaded component 218a, the spring is either compressed or lengthened, thereby increasing or decreasing the tension applied by the spring to a faceted rod extending along the y2-axis, respectively. The faceted rod may extend between the yoke of the upright of the x-stage 212 and provide both the axis about which the heel latch 216 pivots, and the biasing force to retain the heel latch 216 in either the open or closed position. For example and without limitation, in the orientation show in FIG. 5B, a cap or follower may be positioned between the spring and the faceted rod, and the follower may include a planar face configured to press against one facet of the faceted rod in the upright (or closed position) and another facet of the faceted rod in the open position (as shown in FIG. 6). The faceted rod may provide planar surfaces oriented towards the desired positions of the heel latch 216. One of ordinary skill in the art would appreciate that the radial position of the facets of the faceted rods would define the biased resting positions of the heel latch 216. For example, and without limitation, as the heel latch 216 is pivoted aftward about the y2-axis, the follower of the Myrelease mechanism 218 may be deflected towards the adjustable component 218a by an arcuate portion of the faceted rod, the spring would exert an opposite force on the faceted roduntil the heel latch 216 is rotated aftward enough to reach the second facet of the faceted rod, where the tension in the spring would effectively snap the heel latch 216 into its open position and the follower would rest on the second facet of the faceted rod, retaining the heel latch 216 in the open orientation. In various embodiments, the Myrelease mechanism 218 may employ another tensioning component such as a hydraulic or pneumatic piston configured to deflect and provide an opposite restoring force configured to bias the heel latch 216 into either the closed or open positions. This disclosure does not seek to limit the components with which the Myrelease mechanism may provide said restoring force.

[0088] With continued reference to FIG. 5B, Mzrelease mechanism 217 is also shown in a side section view, rendering the internal components visible. Mzrelease mechanism 217 may be formed by one or more biasing components, here shown as a spring, compressed between a fixed end proximate the pivoting axis, the Z2-axis , and an adjustable threaded component 217a. By turning threaded component 217a, the spring is either compressed or lengthened, thereby increasing or decreasing the tension applied by the spring to a faceted column extending along the Z2-axis , respectively. The faceted column may extend through the upright of the x-stage 212 and provide both the axis about which the heel latch 216 pivots, and the biasing force to retain the heel latch 216 in either the rotated or resting position. For example and without limitation, in the orientation show in FIG. 5B, a cap or follower may be positioned between the spring and the faceted column, and the follower may include a planar face configured to press against the facet of the faceted column in the rest position. The faceted column may provide a planar surface oriented aftward in the direction of the axis of the spring of Mzrelease mechanism 217. One of ordinary skill in the art would appreciate that the radial position of the facet of the faceted column about the Z2-axis would define the biased resting position of the heel latch 216 about the Z2-axis . For example, and without limitation, as the heel latch 216 is pivoted about the Z2-axis , the follower of the Mzrelease mechanism 217 may be deflected towards the adjustablecomponent 217a by an arcuate portion of the faceted column, the spring would exert an opposite force on the faceted column until the heel latch 216 is rotated leftward or rightward to release the heel of the ski boot 101, where the tension in the spring would effectively snap the heel latch 216 back to its rest position and the follower would press against the facet of the faceted column, retaining the heel latch 216 in the rest, aligned orientation. In various embodiments, the Mzrelease mechanism 217 may employ another tensioning component such as a hydraulic or pneumatic piston configured to deflect and provide an opposite restoring force configured to bias the heel latch 216 back to its aligned position. This disclosure does not seek to limit the components with which the Mzrelease mechanism 217 may provide said restoring force. In various embodiments, the adjustable threaded component 217a may be interacted with by a user to adjust the spring tension within Mzrelease mechanism 217 via turning with a screwdriver or other tool, including a user’s hand or one or more ski poles. In various embodiments, the adjustable threaded component 217a may include any component configured to adjust the length of the spring, including a component that slides along the x-axis and is retained in the desired position or the like.

[0089] Referring now to FIG. 6, a top perspective view of heel piece 200 is shown in the open position, where the Myrelease mechanism 218 is generally parallel to the x-axis, as the heel latch 216 is rotated aftward about the y2-axis and the protrusion of the heel latch 216 is rotated correspondingly upward and aftward, out of the way of the heel of the ski boot. As described hereinabove, the open position of the heel piece 200 may denote touring mode of the ski binding depending on the selectable positions of the toe piece. In the orientation shown in FIG. 6, the heel of the ski boot may be emplaced on the top surface of the slidable plate 208, the heel latch 216 rotated out of engagement thereof, and allowing free rotation of the heel of the ski boot about the yi and zi-axes of the toe piece. In effect, the open position of the heel latch 216 allows for movement of the ski boot constrained only by the toe piece 100, except for a resting positionof the heel of the ski boot on the slidable plate 208. Heel piece 200 may be biased to remain in the open configuration shown in FIG. 6 by the interaction of the followers of the Mzrelease mechanism 217 and the Myrelease mechanism 218 with the facets of the faceted column and faceted rod, respectively. The heel piece 200 may be configured to retain the open position with enough force that accidental closure of the heel latch 216 is not affected by routine bumping and play of the heel piece 200 during skiing, touring or any intended mode of use of the ski binding.

[0090] Referring now to FIGS. 7A and 7B, the heel piece 200 is shown in a side view emplaced on a ski with the heel of the ski boot 101 resting on the top surface of the slidable plate 208. In this configuration, clearance can be seen between the heel of the ski boot 101 and the heel latch 216, allowing for rotation of the heel of the ski boot 101 about the yi and zi-axes as described herein.

[0091] Referring now to FIGS. 8A and 8B, heel piece 200 is shown in a side view emplaced on a ski with the heel of the ski boot 101 resting on the top surface of the slidable plate 208 and the heel latch 216 engaged with the heel of the ski boot 101. In the orientation shown in FIGS. 8A-8B, heel latch 216 is rotated forward about the y2-axis such that the protrusion of the heel latch 216 is engaged with a platform disposed on the heel of the ski boot. In the closed position, heel latch 216 retains the ski boot 101 against the slidable plate and the system can be described as in ski mode. In the closed position, the Myrelease mechanism 218 and Mzrelease mechanism 217 resist rotation of the heel latch 216 about the y2-axis and Z2-axis , respectively. In ski mode, when the heel latch 216 is in the closed position, the second heel elevator 224 is stowed against the tubular housing of Myrelease mechanism 218 and may be retained by one or more biasing components, disallowing the second heel elevator from accidental forward deployment during skiing. As can be seen in FIGS. 8A-8B, the heel latch 216 may be formed with a corresponding shape to the heel of the ski boot 101, such as an arcuate cutout that partially circumscribes the heel of the ski boot 101. Heel latch 216 may include planar bottom surface forengagement with a corresponding planar surface of the ski boot 101 in the closed position. In the closed position, heel latch 216 may adjustably control the angular displacement of the heel of the ski boot 101 before disengagement of the ski boot 101. For example, and without limitation, during ski mode, the heel of the ski boot 101 may be allowed to rotate a certain arc leftward or rightward, inducing an opposite rotation of the heel latch 216 about the Z2-axis before disengagement, as can be seen in FIG. 12B, allowing for certain rotations during skiing without disengagement of the ski boot 101 from the ski binding. Similarly, during ski mode, the heel of the ski boot 101 may be allowed to rotate a certain arc forward, inducing an opposite rotation of the heel latch 216 about the y2-axis before disengagement, as can be seen from FIG. 12A, allowing for certain rotations during skiing without disengagement of the ski boot 101 from the ski binding.

[0092] Referring now to FIGS. 9A-9B, a side and perspective view of the heel piece 200 in a closed position with the heel of the ski boot 101 emplaced on the first heel elevator is shown. In this configuration, the toe piece 100 may be locked via the state selector 124, the heel latch 216 may be rotated forward about the y2-axis, and the ski binding may be considered in touring mode. The first heel elevator may be spaced from the heel piece base 204 a first distance, creating a platform for the heel of the ski boot that is generally higher than the toe of the ski boot relative to the top surface of the ski. In various embodiments, the first heel elevator may be spaced from the heel slidable plate 208 a first distance, creating a platform for the heel of the ski boot that is generally higher than the toe of the ski boot relative to the top surface of the ski. In various embodiments, the first heel elevator may be spaced from the heel piece base 204 a distance of about 40-50 mm, such as about 42 mm. In various embodiments, the first heel elevator may be spaced from the slidable plate 208 a distance of about 40-50 mm, such as about 42 mm. The first heel elevator may therefore account for the slope of a hill and allow for ease of walking in in the ski binding by allowing the ski boot 101 to be generally held perpendicular tothe force of gravity as the ski is angularly offset therefrom to allow for walking up an inclined slope while in touring mode. A user may manually interact with the handle 220 of heel piece 200 to switch from the open configuration to the closed configuration shown in FIGS. 9A-9B, thereby positioning the first heel elevator under the heel of the ski boot 101 and allowing for touring mode uphill or in environmental situations where having inclining the heel of the ski boot 101 in the binding may be advantageous to the user. In the configuration shown in FIGS. 9A-9B, the Myrelease mechanism 218 may be retained in the generally upright position via interaction between the Myrelease mechanism 218 and the faceted rod extending along the yi- axis, such that the heel latch 216 does not rotate aftward while the first heel elevator is deployed and supporting the heel of the ski boot 101. During touring mode with the heel latch 216 rotated forward and the first heel elevator deployed under the heel of the ski boot 101, the second heel elevator 224 may be stowed as to not interfere with the stepping motion of the ski boot 101 in the binding. The stowed position may be generally aligned with the tubular housing of the Myrelease mechanism 218 and may be retained via one or more biasing mechanisms.

[0093] Referring now to FIG. 10, a side view of heel piece 200 with the second heel elevator 224 deployed is shown having received the heel of the ski boot 101 in touring mode. As described with reference to FIGS. 9A-9B, the second heel elevator 224 may be deployed while the heel latch 216 is in the upright and closed position. The second heel elevator 224 may be pivoted from the stowed position to the deployed position, thereby extending second heel elevator 224 forward generally parallel to the x-axis such that it interferes with the heel of the ski boot. The second heel elevator 224 may be spaced from the heel piece base 204 a second distance, which is greater than the first distance, such that the second heel elevator creates a second and higher platform for the heel of the ski boot. In various embodiments, the second heel elevator 224 may be spaced from the heel piece base 204 by about 55-70 mm, for example, about 66 mm. When the second heel elevator 224 is deployed, the heel of the ski boot is generallyhigher than the toe of the ski boot relative to the top surface of the ski. The second heel elevator may therefore account for any even greater slope than the first heel elevator does and allow for ease of walking in the ski binding by allowing the ski boot 101 to be generally held perpendicular to the force of gravity as the ski is angularly offset therefrom to allow for walking up an inclined slope while in touring mode. A user may manually interact with the handle 220 of heel piece 200 to switch from the open configuration to the closed configuration shown in FIG. 10, thereby positioning the second heel elevator proximate the ski boot 101, then the user may manually interact with the second heel elevators 224 to pivot it to the deployed state such that it is positioned under the heel of the ski boot 101, allowing for touring mode uphill or in environmental situations where having inclining the heel of the ski boot 101 in the binding may be advantageous to the user.

[0094] In the configuration shown in FIG. 10, the Myrelease mechanism 218 may be retained in the generally upright position via interaction between the Myrelease mechanism 218 and the faceted rod extending along the y2-axis, such that the heel latch 216 does not rotate aftward while the second heel elevator is deployed and supporting the heel of the ski boot 101. Additionally, the weight of the user in the ski boot 101 acts downwards on the second heel elevator 224 which forces the heel latch 216 to remain in the forward and upright position. During touring mode with the heel latch 216 rotated forward and the second heel elevator 224 deployed under the heel of the ski boot 101, the ski boot 101 may be free to rotate about the yi- axis (defined by the pins 116a and 116b of the toe piece) forwards and aftward until it is stopped by the second heel elevator, to account for stepping in touring mode.

[0095] Referring now to FIG. 11, a perspective view of the ski binding 1100 is shown with relative placement on a ski is shown. As shown by the broken lines, the relative distance along the x-axis between the toe piece 100 and the heel piece 200 is variable. The toe piece 100 and the heel piece 200 may be axially located on the top surface of the ski as determined by theuser. As described above, the heel piece 200 may be axially adjustable along the x-axis even after the heel piece base 204 is affixed to the ski. As shown in FIG. 11, the axes yi, zi, yz and Z2 are shown for clarity. As described hereinabove, the zi-axis is defined perpendicular to the top surface of the ski and traverses the central point of the rotatable stage 108, which defines the axis about which the rotatable stage 108 rotates. The yi-axis is shown defined by the axis traversing the center points of each of the pin 116a and pin 116b when the arms 112a and 112b are in the closed position. The Z2-axis is shown perpendicular to the top surface of the ski through the upright of the x-stage 212 and crossing perpendicularly through the yoke of the y2-axis and defines a first rotational axis of the heel latch 216. The y2-axis is shown defined as the axis defined by the yoke of the upright portion of x-stage 212, which defines a second rotational axis of the heel latch 216.

[0096] Referring now to FIGS. 12A and 12B, a side view of a y axis rotation is shown and a planform view of a z-axis rotation is shown, respectively. Specifically, FIG. 12A, as the heel of the ski boot 101 rotates about the yi-axis, defined by forward rotation about the toe piece 100, the heel of the ski boot 101 applies an upward force on the heel latch 216. The Myrelease mechanism 218 applies an opposite force downward on the heel of the ski boot 101 until a predetermined threshold torque is applied to the heel latch 216, thereby snapping the heel latch216 open to the aftward position. As described hereinabove, the predetermined torque required to pivot the heel latch 216 to the open position may be adjusted by user interaction with the adjustable threaded component 218a. Specifically in FIG. 12B, as the heel of the ski boot 101 rotates about the zi-axis, defined by lateral rotation of the foot about the toe piece 100, the heel of the ski boot 101 applies a rotational force on the heel latch 216. The Mzrelease mechanism217 applies an opposite rotational force on the heel of the ski boot 101 until a predetermined threshold torque is applied, thereby releasing the heel of the ski boot 101 from the heel piece (and releasing the toe of the ski boot 101 from the toe piece 100). As described hereinabove, thepredetermined torque required to pivot the heel latch about the Z2-axis may be adjusted by user interaction with the adjustable threaded component 217a.

[0097] Referring now to FIG. 13, a bottom planform view of heel piece 200 is shown with a preload component 232 disposed therein. Heel piece base 204 may include a preload component 232 configured to apply a preload to a ski boot 101 through the heel piece 200 along the x-axis to accommodate for a change in distance between toe piece 100 and heel piece 200 due to ski deflection or flexion. In various embodiments, the preload component 232 may be configured to accommodate a travel of heel piece 200 along the x-axis of approximately 2.5 mm. Preload component 232 may be positioned underneath the heel piece base 204 at an aftward- most point, such that biasing components like springs are compressed between the aft end of heel piece base 204 and the x-stage 212, forcing x-stage 212 forward towards ski boot 101 with a predetermined and adjustable preloaded tension.Ski Mode

[0098] The various modes of use of the ski binding 1100 will be discussed hereinbelow by describing the plurality of components of the ski binding functional operations. In ski mode, the toe piece 100 may be free to rotate about the zi-axis by retaining the state selector 124 in the unlocked position, thereby stowing the profile portions up and out of the way of the base 104, allowing rotation of the rotatable stage 108. The toe of the ski boot 101 is stepped into the toe piece 100 while the arms 112a and 112b are in second open position, the weight of the boot forcing the arms into the first closed position, engaging the pins 116a and 116b into corresponding recesses into the ski boot toe. The heel of the ski boot 101 is emplaced on the slidable plate 208 of the heel piece 200 and the heel latch 216 is rotated forward about the yi- axis, engaging with the heel of the ski boot 100. The ski binding 1100 may be considered to be in ski mode, where ski boot 101 is retained in the toe piece 100 and heel piece 200 and free to rotate a predetermined angular displacement about the yi-axis and zi-axis. To release the ski bootfrom the binding 1100, a lateral rotation of the heel about the zi-axis may rotate the rotatable stage 108 until the blocking member 136 is disengaged and the arms are released from the first closed position to the second closed position. During lateral rotation, the heel latch 216 of the heel piece 200 may rotate corresponding and oppositely relative to the heel of the ski boot 101 until the heel slips out of the heel latch 216. Manual release of the toe of the ski boot 101 may be affected while the arms 112a and 112b are in the first closed position by depressing the lever 120 downward, wherein the lower finger 122 linearly displaces the blocking member 136 and further rotates upward to push arms 112a and 112b upward and outward, affecting movement of the arms 112a, 112b from the first closed position to the second open position. Further manual releasing of the ski boot may be affected by manual interaction of a user with the heel latch 216 itself, wherein a user applies a force with a hand or ski pole on the recess of the handle 220, forcing the heel latch 216 to pivot aftward about the y2-axis, disengaging the latch from the heel of the ski boot 101.Touring Mode

[0099] With the toe of the ski boot emplaced in the toe piece 100 and the arms 112a, 112b engaged therewith in the first closed position, the state selector 124 may be flipped downward to engage with base 104. The state selector 124 may now be described as in the locked position, where a profile of the state selector 124 is retained within corresponding slots of the base, including the scalloped portions 105. The upper finger 121 is forced aftward and downward to apply a force to the top surfaces of the innermost portions of the arms 112a and 112b, preventing disengagement of the arms 112a and 112b from the first closed position to the second open position, and further reduces relative movement of any components in the linkage, reducing play and rattling. With the toe piece 100 in the locked position, the toe of the ski boot 101 is prevented from rotating and may generally be aligned with the x-axis. In touring mode, the heel piece 200 may be in any of three configurations. First, the heel piece 200 may be in theopen position, wherein the heel latch 216 is rotated aftward about the y2-axis and stowed such that the Myrelease mechanism 218 is generally parallel to the x-axis. The heel of the ski boot 101 may be emplaced on the slidable plate 208 but generally free to rotated forward about the yi- axis (about the pins 116a, 116b of the toe piece 100) to allow walking in the ski binding.

[0100] Still while in touring mode, the heel of the ski boot 101 may be rotated upward and forward about the yi-axis and the heel latch 216 may be pivoted forward about the y2-axis to the closed position where the heel latch 216 protrudes forward about the x-axis and provides the first heel elevator to receive the heel of the ski boot 101. This configuration may allow for walking within the ski binding on an upwardly sloping surface. The first heel elevator may allow the ski boot to rest perpendicular to the force of gravity while the ski is angularly offset and parallel to the sloped surface. The heel of the ski boot 101 may be free to rotate about the y2-axis (defined by the pins 116a, 116b) to allow for walking on a sloped surface while in the ski binding.

[0101] Third, the heel of the ski boot 101 may be rotated upward and forward and a manual interaction from the user may deploy the second heel elevator 224 by pivoting it from its stowed position along the tubular housing of the Myrelease mechanism 218 such that it extends generally forward and parallel to the x-axis. The heel of the ski boot 101 may then be placed on the top surface of the second heel elevator, thereby increasing the angular offset of the ski boot in the rest position from the sloped surface of the ski parallel to the ground (such as a steeper hill or mountain). In either the second or third configuration, i.e. the first or second heel elevators deployed, a manual user interaction with the handle 220 may pivot the heel latch 216 aftward about the y2-axis, disengaging the heel latch 216 from interference with the heel of the ski boot 101 and the heel can again be emplaced on the slidable plate 208, with the sole of the ski boot generally parallel with the top surface of the ski again. Further the user can manually flip the state selector 124 of the toe piece 100 to the unlocked position, and either rotate the ski boot 101about the Z2-axis to release the arms 112a and 112b through rotation of the rotatable stage or depress the lever 120 to force the arms 112a and 112b from the first closed position to the second open position.

[0102] While the disclosed subject matter is described herein in terms of certain preferred embodiments, those skilled in the art will recognize that various modifications and improvements may be made to the disclosed subject matter without departing from the scope thereof. Moreover, although individual features of one embodiment of the disclosed subject matter may be discussed herein or shown in the drawings of the one embodiment and not in other embodiments, it should be apparent that individual features of one embodiment may be combined with one or more features of another embodiment or features from a plurality of embodiments.

[0103] In addition to the specific embodiments claimed below, the disclosed subject matter is also directed to other embodiments having any other possible combination of the dependent features claimed below and those disclosed above. As such, the particular features presented in the dependent claims and disclosed above can be combined with each other in other manners within the scope of the disclosed subject matter such that the disclosed subject matter should be recognized as also specifically directed to other embodiments having any other possible combinations. Thus, the foregoing description of specific embodiments of the disclosed subject matter has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosed subject matter to those embodiments disclosed.

[0104] It will be apparent to those skilled in the art that various modifications and variations can be made in the method and system of the disclosed subject matter without departing from the spirit or scope of the disclosed subject matter. Thus, it is intended that the disclosed subject matter include modifications and variations that are within the scope of the appended claims and their equivalents.

Claims

CLAIMSWhat is claimed is:

1. A ski binding system comprising: a toe piece including: a base, the base defining a zi-axis perpendicular thereto; a rotatable stage disposed on a top surface of the base, the rotatable stage configured for rotation about the zi-axis; a first arm and a second arm mounted on the rotatable stage, each arm including a pin configured to releasably engage a ski boot when in a first position, at least one arm movable to a second position to disengage the ski boot and wherein the pins define a yi-axis extending therebetween when in the first position; a lever having a state selector pivotably coupled thereto, the state selector movable between locked and unlocked positions, the lever configured to displace at least one of the first and second arm between the first position and the second position, the rotatable stage inhibited from rotation about the zi-axis when the state selector is in the locked position; a blocking member engaging at least one of the first arm and the second arm when in the first position, the blocking member inhibiting displacement of at least one of the first arm and the second arm to the second position; wherein the blocking member is movable to disengage at least one of the first and second arm upon rotation of the rotatable stage a predetermined angle about the zi-axis; a heel piece spaced aftward from the toe piece along an x-axis, the heel piece including: a heel piece base defining a Z2-axis extending upwardly therefrom; a slidable plate configured for lateral displacement, and wherein the slidable plate is configured to receive a heel of the ski boot;an x-stage extending upwardly along the Z2-axis from the heel piece base, the x- stage coupled to the heel piece base with an adjustable position along the x- axis; and a heel latch coupled to the x-stage, the heel latch configured to rotate about a yi- axis and the Z2-axis and including: an adjustable Mzrelease mechanism controlling rotation of the heel latch about the Z2-axis; an adjustable Myrelease mechanism controlling rotation of the heel latch about the y2-axis.

2. The ski binding system of claim 1, wherein when the heel latch is rotated forward about the y2-axis, with the first and second arm of the toe piece in the first position and the state selector is in the unlocked position, the system is in a ski-mode.

3. The ski binding system of claim 1, wherein when the heel latch is rotated aftward about the y2-axis, with the first and second arm in the first position and the state selector in the locked position, the system is in a touring-mode.

4. The ski binding system of claim 3, wherein the heel latch includes a first heel elevator configured to receive the heel of the ski boot, the first heel elevator spaced a first distance from the heel piece base.

5. The ski binding system of claim 4, wherein the heel latch includes a second heel elevator rotatably coupled thereto and spaced a second distance from the heel piece base, the second heel elevator configured to pivot between a stowed position and an extended position.

6. The ski binding system of claim 5, wherein the first heel elevator and second heel elevator are axially aligned along the heel latch.

7. The ski binding system of claim 5, wherein the second heel elevator is configured to receive the heel of the ski boot when in the extended position.

8. The ski binding system of any one of claims 1-5, wherein rotation of the Mzrelease mechanism beyond a predetermined angle about the Z2-axis disengages the heel latch from the ski boot.

9. The ski binding system of any one of claims 1-8, wherein the pins of the first arm and the second arm are configured to allow the ski boot to rotate about the yi-axis a predetermined angle when in touring-mode.

10. The ski binding system of any one of claims 1-9 wherein the blocking member is movable to disengage at least one of the first and second arm upon rotation of the rotatable stage of a predetermined angle about the zi-axis.

11. A heel piece of a ski binding comprising: a heel piece base defining a Z2-axis extending perpendicularly upward therefrom; a slidable plate, the slidable plate configured for lateral displacement, and configured to receive a heel of a ski boot; an x-stage extending upwardly from the heel piece base along the Z2-axis, the x-stage coupled to the heel piece base with an adjustable position along an x-axis; a heel latch coupled to the x-stage and configured to rotate about a y2-axis perpendicular to the x-axis and the Z2-axis, the heel latch including: an adjustable Mzrelease mechanism controlling rotation of the heel latch about the Z2-axis; an adjustable My release mechanism controlling rotation of the heel latch about the y2-axis.

12. The heel piece of claim 11, wherein the heel latch is configured to move from a first open position to receive the heel of the ski boot to a second closed position wherein the heel latch engages the heel of the ski boot.

13. The heel piece of claim 12, wherein the heel latch includes a first heel elevator projecting outwardly along the x-axis from the heel latch and configured to retain the heel of the ski boot in the second closed position and receive the ski boot heel in the first open position.

14. The heel piece of claim 12, wherein the heel latch includes a second heel elevator rotatably coupled thereto, the second heel elevator configured to pivot between a stowed position and an extended position and wherein the second heel elevator is configured to receive the ski boot heel in the extended position.

15. The heel piece of claim 14, wherein the second heel elevator is disposed above the first heel elevator along the Z2-axis when the heel latch is in the second closed position.

16. The heel piece of claim 15, wherein the heel latch is generally parallel with the x-axis in the first open position and generally parallel to the Z2-axis in the second closed position.

17. The heel piece of claim 11, wherein the adjustable Myrelease mechanism is disposed within the heel latch.

18. The heel piece of claim 11, wherein the adjustable Mzrelease mechanism is disposed within the x-stage.

19. The heel piece of claim 11, wherein the Mzrelease mechanism and Myrelease mechanism are each configured to be independently adjustable to release the ski boot via a rotation about the Z2-axis and y2-axis, respectively.

20. The heel piece of claim 19, wherein the Mzrelease mechanism and Myrelease mechanism each comprise at least one spring configured to independently adjust a required load to release the ski boot from the Mzrelease mechanism and the Myrelease mechanism.

21. A toe piece of a ski binding comprising: a base, the base defining a zi-axis extending perpendicular therefrom; a rotatable stage disposed on a top surface of the base, the rotatable stage configured for rotation about the zi-axis; a first arm and a second arm mounted on the rotatable stage, each arm including a pin configured to releasably engage a ski boot when in a first position, at least one arm movable to a second position to disengage the ski boot and wherein the pins define a My rotational yi-axis extending therebetween when in the first arm and the second are in the first position; a lever having a state selector pivotably coupled thereto, the state selector movable between locked and unlocked positions, the lever configured to displace at least one of the first and second arm between the first position and the second position, the rotatable stage inhibited from rotation about the zi-axis when the state selector is in the locked position; a blocking member engaging at least one of the first and second arm when in the first position, the blocking member inhibiting displacement of at least one of the first and second arm to the second position; wherein the blocking member is movable to disengage at least one of the first and second arm upon rotation of the rotatable stage a predetermined distance about the zi-axis.

22. The toe piece of claim 21, wherein the blocking member is disposed below the rotatable stage.

23. The toe piece of claim 21, wherein the blocking member is displaced linearly while the rotatable stage rotates about the zi-axis.

24. The toe piece of claim 23, wherein the blocking member comprises a blocker tab portion configured to engage an arm tab portion disposed on at least one of the first arm and the second arm when in the first position.

25. The toe piece of claim 24, wherein the lever is configured to displace the blocking member to disengage the blocker tab portion from the arm tab portion and force the first and second arm to the second position upon displacement of the lever.

26. The toe piece of claim 21, wherein the second arm is operatively coupled to the first arm and configured to move from the first position to the second position when the blocking member releases the first arm.

27. The toe piece of claim 21, wherein the blocking member is disposed at a midpoint of the first and second arms.

28. The toe piece of claim 21, wherein the blocking member is movable to disengage the first and second arm upon rotation of the rotatable stage of between about 5 and about 20 degrees about the zi-axis.

29. The toe piece of claim 21, wherein the rotatable stage comprises a cam profile which linearly displaces the blocking member upon rotation of the rotatable stage about the zi-axis.

30. The toe piece of claim 21, wherein the state selector is configured to engage the base when in the locked position, thereby preventing the rotatable stage from rotating about the zi- axis.

31. The toe piece of claim 21, wherein the lever is configured to engage the first arm and the second arm when the state selector is in the locked position, thereby preventing the first arm and the second arm from moving to the second position.

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