The present application relates to snowshoes, and to a construction thereof, as well as to a harness used in snow sport equipment such as snowshoes and snowboards.
Snowshoes are commonly used to walk on snow, especially for recreational purposes. Snowshoes come in different configurations, as a function of the physical activity performed with the snowshoes. In order to enhance their performance, snowshoes must be as light as possible. Indeed, snowshoes operate under the principle of flotation on snow, whereby their weight is a design factor.
Moreover, sports equipment such as snowshoes and snowboards featuring a harness to which one attaches a boot are not always practical in that some time is required to attach one's boot into the harness. It would be desirable to develop harnesses that facilitate fastening while not affecting the performance of the sports equipment it is a part of.
It is therefore an aim of the present disclosure to provide a snowshoe that addresses issues related with the prior art.
It is a further aim of the present disclosure to provide a harness that addresses issues related with the prior art.
Therefore, in accordance with an embodiment of the present application, there is provided a harness for an item of footwear comprising: a foot interface adapted to receive an underside of the item of footwear thereon; at least two lateral straps each having opposed ends connected to the foot interface, and each forming a continuous hoop between the opposed ends for a portion of the item of footwear to be received in the continuous hoops on the foot interface, each of the at least two lateral straps having a longitudinal degree of expansion and contraction to increase or reduce a size of the respective continuous hoop; at least one cable route on the at least two lateral straps, the cable route having at least one of cable housings and cable channels; at least one cable routed in the at least one cable route; and at least one closure device to pull on the at least one cable to reduce the size of the continuous hoops in the degree of contraction.
Further in accordance with the embodiment, there is provided a snowshoe comprising: a frame defining a periphery of the snowshoe, a deck defining with the frame a footprint of the snowshoe, and a foot opening in the deck; and a binding comprising the harness described above, the binding pivotally connected to the frame or deck; whereby a front end of the binding is displaceable into the foot opening below a footprint of the snowshoe.
In accordance with another embodiment of the present disclosure, there is provided a snowshoe comprising: a frame having at least a tubular member defining a periphery of the snowshoe, the tubular member having a top surface portion of a given width; a deck having a portion of its periphery aligned with and covering at least a portion of the top surface portion of the tubular member over the given width; an adhesive between the top surface portion and the deck to secure the deck to the frame; and a binding operatively connected to at least one of the frame and the deck and adapted to be connected to footwear of a wearer.
Referring to the drawings and more particularly to
The snowshoe 10 may have a peripheral frame 20, a deck 30, a binding 40 including a harness 50, and a heel cleat unit (not shown).
The peripheral frame 20 forms the structure of the snowshoe 10, and delimits its footprint. The frame 20 is typically made of a metal/alloys, such as aluminum, titanium, steel, etc, or of composite materials.
The deck 30 defines the majority of the footprint surface of the snowshoe 10, and is hence responsible for spreading the weight of the user, i.e., the deck 30 achieves the flotation effect. The deck 30 may be secured directly to the peripheral frame 20 in a stretched state, in accordance with an embodiment of the present disclosure described hereinafter. The deck 30 is made of any suitable panel material, such as textiles, polymers, tarps, woven, non-woven, to name but a few, with properties such as puncture resistance, tear resistance, etc. Alternatively, the frame 20 and deck 30 may form one integral panel, instead of being separate interconnected components.
The binding 40 is the interface between the boot A or shoe of the wearer (hereinafter boot for simplicity), and the snowshoe 10. Moreover, the binding 40 allows a hinging movement of the boot for instance by way of an elastic band connecting the binding 40 to the frame 20 and/or deck 30, by which the front portion of the binding 40 plunges below a footprint of the frame 20 and deck 30.
The harness 50 is part of the binding 40 (although likely removable from a remainder of the binding 40) that is designed to releasably secure the boot A to the binding 40 and hence to the snowshoe 10.
Referring to
In an embodiment, the peripheral frame 20 is a tubular frame, in that it is made of a hollow tube (i.e., frame defined by a tube extending lengthwise along the periphery of the snowshoe 10), and could be open as opposed to closed. It is also considered to have a solid frame 20 as opposed to a tubular frame, provided the weight of the solid frame 20 is not excessive by an appropriate section of materials.
By way of the arrangement of
Hence, the deck 30 may be secured directly to the frame 20, as the support surface 22 of the frame 20 defines sufficient space in the given width for an adhesive to anchor the deck 30 directly against the frame 20, i.e., without additional mechanical fasteners, interfacing brackets, or without loops of excessive deck material surrounding the frame 20. For instance, an adhesive that is well suited is Loctite® H8000™ provided for exemplary purposes, although numerous other adhesives are considered. By the downwardly-facing apex, the tapered bottom 23 may provide additional purchase to the frame 20 compared with flatter bottom shapes of prior art frames. A triangular-like section is well suited to provide addition purchase and to form appropriate support for the deck in the direct connection with the adhesive, but other sectional shapes are considered. For instance, square, trapezoid, oval and/or rounded shapes could achieve suitable results as well.
Referring to
Referring to
The foot interface 51 may be in the form of a plate have a base layer or plate 51A upon which a traction layer or plate 51B is over-molded or fixated face-to-face on the base layer 51A, to concurrently define the foot interface 51. Alternatively, the foot interface 51 may have a unitary construction (e.g., be one monolithic piece). Other configurations for the foot interface 51 include tubular frame members, etc. Concurrently, the base layer 51A and the traction layer 51B form a relatively flat assembly of relatively small thickness. The base layer 51A may be the more rigid of the two layers to provide the structural integrity of the foot interface 51.
The harness 50 further comprises a rear lateral strap 52 and may also comprise a front lateral strap 53. The lateral straps 52 and 53 are provided to wrap around the upper portion of the boot so as to tie down the boot A to the foot interface 51. Stated differently, the lateral straps 52 and 53 form continuous hoops in which a user's boot may be inserted. For this reason, the circumference of the rear lateral strap 52 and front lateral strap 53 can be decreased or increased to tighten or loosen the harness 50 and allow insertion or removal of the boot A from the harness 50. The expression “lateral” is used as it reflects the lateral positioning of the straps 52 and 53 relative to the human anatomy (they are generally parallel to a latero-lateral direction). Another expression that could be used for the straps 52 and 53 is transverse straps or hoops, in that the straps 52 and 53 are transversely positioned relative to a length of the foot.
The rear lateral strap 52 comprises a pair of base strap portions 52A. In an embodiment, the base strap portions 52A are integral with the traction layer 51B of the foot interface 51, although the base strap portions 52A may be pivotally connected to the foot interface 51 as well. The base strap portions 52A project laterally from the foot interface 51. The rear lateral strap 52 further comprises an upper or central strap portion 52B connected at opposite ends to the base strap portions 52A, thereby forming a continuous hoop with the foot interface 51. The lateral strap 52 is said to be continuous in that there is no gap between any of the portions 52A and 52B. As observed, the upper strap portion 52B is in telescopic arrangement with the base strap portions 52A in such a way that the upper strap portion 52B is in sliding relation with the base strap portions 52A, i.e., a sliding joint providing one degree of translation (or degree of contraction and expansion) is allowed between the upper strap portion 52B and the base strap portions 52A. One configuration considered to allow this translation is to have a channel and end bridge defined in the base strap portions 52A as shown in
The front lateral strap 53 has a similar configuration, with a pair of base strap portions 53A and an upper strap portion 53B (or two, four or more of the strap portions overall), whereby the description provided above for the rear lateral strap 52 applies to the front lateral strap 53, especially regarding the translation. The front lateral strap 53 has a guide channel 53C in the upper strap portion 53B, the guide channel 53C formed by a U-bracket or by any other similar formation.
A longitudinal strap 54 projects from a front end of the foot interface 51 and, like the base strap portions 52A and 53A, may be integral with the traction layer 51B of the foot interface 51. The longitudinal strap 54 has an elongated body that then curves rearwardly to pass through the guide channels 53C and 52C of the lateral straps 53 and 52. Teeth 54A (a.k.a., gear rack, serrations, etc) are defined on a top surface of the longitudinal strap 54, and are positioned opposite the guide channel 52C of the rear lateral strap 52. The teeth 54A are of the type found in cable ties or tie wraps, to provide a ratchet-type unidirectional movement of the longitudinal strap 54. A free end of the longitudinal strap 54 may define a handle 54B rear of the lateral strap 52, for the user to exert a pulling action on the longitudinal strap 54.
Accordingly, by way of the guide channels 52C and 53C, the longitudinal strap 54 may translate relative to the lateral straps 52 and 53, i.e., along its longitudinal dimension, in a transverse direction relative to these lateral straps 52 and 53. Moreover, the straps 52 and 53 are tightened, the longitudinal strap 54 may be limited to translational movement in a front-to-rear direction because of the teeth 54A thereon. Stated differently, the tightening caused by the cable 58 may result in the lateral strap 53 and longitudinal strap 54 sufficiently pressed against one another for the teeth 54A to be blocked from moving. This may entail the presence of an abutment on an underside of the central strap portion 52B, in the guide channel 52C.
Still referring to
A closure dial 57 is provided on top of the upper strap portion 52B. According to an embodiment, the closure dial 57 is part of a Boa™ closure system. Other closure systems or closure devices are usable as well, as will be described hereinafter. In the case of the use of a Boa™ closure system, the closure dial 57 is a ratchet wheel that rotated to induce a pulling action on opposite ends of cable 58. As cable 58 is attached at opposite ends to the closure dial 57, it forms a closed figure, whereby the pulling action on its end with shorten the size of the hoop, and this feature is used to tighten the harness 50 upon the boot A.
More specifically, cable 58 passes through a cable route that may consist of a plurality of cable housings 59A provided in the upper strap portions 52B and 53B of the lateral straps 52 and 53, respectively. Moreover, cable housings 59 may also be part of the base strap portions 52A and 53A, as observed in
Cable channels 59B route the cable 58 from the cable housings 59A in the base strap portions 52A to the housings 59A of the base strap portions 53A. Accordingly, in the illustrated embodiment, a single cable 58 travels from the closure dial 57 down one of the housings 59A of the upper strap portion 52B through the housing 59A of one of the base strap portions 52A, through one of the channels 59B, into all housings surrounding the front lateral strap 53, back through another of the channels 59B in the foot interface 51, and through the housing 59A of the other base strap portion 52A. The end of the cable 58 then reaches the closure dial 57 through the housing 59A on the other side of the upper strap portion 52B. A rotation of the closure dial 57 will result in a pulling action on both ends of the cable 58, thereby bringing the upper strap portions 52B and 53B in a tightened position with their related base strap portions 52A and 53A. As per the configuration of a Boa™ closure system, upon raising the closure dial 57, the tension in the cable 58 is released, thereby allowing the loosening of the lateral straps 52 and 53 by a simple movement of one's boot A in the harness 50.
Advantageously, the cable route for the cable 58 as described above allows the use of a single closure system (and single closure dial 57) to close the two lateral straps. Hence, there results a simpler tightening of the harness 50 over two or more distinct closure systems, i.e., one per lateral strap, although two separate closure systems could be used as well, one for each strap. It is however contemplated to use other closure mechanisms, such as a rack and pinion assembly as an alternative to the closure dial 57. A rack and pinion assembly, with a two-direction closure system, could be used to pull/release a cable (such as cable 58) in a similar fashion to the Boa™ closure system. Hence, there are alternatives to the Boa™ closure system. Moreover, although a single cable 58 is shown and described, a pair of cables 58 could be used, each of these cables 58 having an end in the closure dial 57, and another end secured to the lower strap portions 53A or to the foot interface 51, to pull on the upper strap portion 53B. It is observed that the continuous nature of the hoops formed by the lateral straps 52 and 53 prevents direct contact between the boot and the cable(s) 58. The degree of contraction and expansion as described above is configured to provide enough play between strap portions of each strap 52/53 to prevent contact of the cable 58 with the boot.
As mentioned above, the closure dial 57 has an up and down movement in a direction parallel to its rotational axis, to engage or release the mechanism of the closure dial 57 to the cable 58. When the closure dial 57 is up, the cable 58 is free to be loosened, whereas when the closure dial 57 is down, the cable 58 is tied to the closure dial 57 such that a rotation of the closure dual 57 results in the pulling action.
When the closure dial 57 is raised to its releasing position, the longitudinal strap 54 may be used to help loosening the straps 52 and 53. Indeed, as the longitudinal strap 54 is transversely positioned relative to the straps 52 and 53 and under same (in guide channels 52C and 53C), the user A may simply pull on the handle 54B to expand the lateral straps 52 and 53.
It is pointed out that the harness 50 may be used with other equipment. For example, the harness 50 may have some of its parts used for a snowboard binding. For example, the telescopic lateral straps 52 and 53, and closure system with dial 57, cable 58 and housings 59A/channels 59B could form part of a snowboard biding.
The present application claims the priority of U.S. Provisional Patent Application No. 62/082,290. Filed on Nov. 20, 2014 and incorporated herein by reference.
Number | Date | Country | |
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62082290 | Nov 2014 | US |