Patent Application
20160007674
This application claims priority from Canadian Patent Application Serial Number 2,856,781 filed on Jul. 10, 2014. The disclosure of the prior application is hereby incorporated in its entirety by reference.
The present invention relates to a tongue for a skate boot, the tongue comprising a core made of a first material with a first density and a peripheral section affixed to the periphery of the core, the peripheral section being made of a second material with a second density, the first density being less than the second density.
Skate boots having tongues for covering the forefoot and front ankle portion of a wearer are known in the art. These tongues provide protection to the wearer's forefoot and front ankle portion by at least partially absorbing impacts as well as accommodating a skate boot's laces such that they do not apply pressure to the wearer's foot directly.
For many years, felt has been used in the construction of such tongues, particularly as a backing of the tongues. The use of felt, amongst other reasons, is attributed to its good impact protection, its soft texture and the traditional look it provides to skate boots. Recently, tongues made of foam have been introduced into the market. Similarly to felt tongues, foam tongues also offer good impact protection. Foam tongues may be thinner than their felt counterparts and usually weigh less as well. Irrespective of this, many still prefer the felt tongues due to their comfortable texture and the more traditional look they have.
Against this backdrop, there is a need in the industry for a tongue which has the same look and comfortable texture of traditional felt tongues, while also providing a weight reduction with respect to the traditional felt tongues.
In accordance with a first broad aspect, the invention provides a tongue for a skate boot configured for enclosing a human foot, the human foot having a forefoot and a front ankle portion, the tongue comprising: a core for covering at least partially the forefoot and the front ankle portion, the core comprising distal, middle and proximal portions and left and right portions, the left, proximal and right portions defining a periphery of the core, the core comprising a first material having a first density; and a peripheral section affixed to at least one of the left, proximal and right core portions and extending along at least part of the periphery, the peripheral section comprising a second material having a second density, the first density being less than the second density.
According to another broad aspect, the invention provides a tongue for a skate boot configured for enclosing a human foot, the human foot having a forefoot and a front ankle portion, the tongue comprising: a core for covering at least partially the forefoot and the front ankle portion, the core comprising a front surface and a rear surface, distal, middle and proximal portions, and left and right portions, the left, proximal and right portions defining a periphery of the core, the core being made of a first material having a first density; a peripheral section affixed to at least one of the left, proximal and right core portions and extending along at least part of the periphery, the peripheral section being made of a second material having a second density, the first density being less than the second density; and a layer covering the rear surface of the core. The first material may comprise foam, the second material may comprise felt and the layer may comprise felt.
According to a further broad aspect, the invention provides a method of making a tongue for a skate boot configured for enclosing a human foot, the human foot having a forefoot and a front ankle portion, the method comprising: providing a core made of a first material having a first density for covering at least partially the forefoot and the front ankle portion, the core comprising front and rear surfaces, distal, middle and proximal portions, and left and right portions, the left, proximal and right portions defining a periphery of the core; providing a peripheral section made of a second material having a second density, the first density being less than the second density; affixing the peripheral section to at least one of the left, proximal and right core portions such that the peripheral section extends along at least part of the periphery; providing a layer; and covering the rear surface of the core with the layer.
Other aspects and features of the present invention will become apparent to those of ordinary skill in the art upon review of the following description of specific embodiments of the invention in conjunction with the accompanying figures.
A detailed description of the embodiments of the present invention is provided hereinbelow with reference to the following drawings, in which:
In the drawings, embodiments of the invention are illustrated by way of example. It is to be expressly understood that the description and drawings are only for the purposes of illustration and as an aid to understanding, and are not intended to be a definition of the limits of the invention.
To facilitate the description, any reference numeral designating an element in one figure will designate the same element if used in any other figures. In describing the embodiments, specific terminology is resorted to for the sake of clarity but the invention is not intended to be limited to the specific terms so selected, and it is understood that each specific term comprises all equivalents.
Unless otherwise indicated, the drawings are intended to be read together with the specification, and are to be considered a portion of the entire written description of this invention. As used in the following description, the terms “horizontal”, “vertical”, “left”, “right”, “up”, “down” and the like, as well as adjectival and adverbial derivatives thereof (e.g., “horizontally”, “rightwardly”, “upwardly”, “radially”, etc.), simply refer to the orientation of the illustrated structure. Similarly, the terms “inwardly,” “outwardly” and “radially” generally refer to the orientation of a surface relative to its axis of elongation, or axis of rotation, as appropriate.
Shown in
Shown in
The skate boot 10 has an outer shell 12 for receiving the player's foot, the outer shell 12 having an outer surface and an inner surface, a toe cap 14 made of a rigid material for protecting the player's toes, a tongue 20 extending upwardly and rearwardly from the toe cap 14 for covering a forefoot of the player's foot, an inner liner (not shown) having an outer surface mounted to the inner surface of the outer shell 12 and an inner surface adapted to contact the player's foot or a sock covering the player's foot, a footbed, an insole, an outsole, an ice skate blade holder 16 and an ice skate blade 18. The footbed has an upper surface for facing the plantar surface of the player's foot. The outsole has an upper surface on which the sole portion of the outer shell 12 (e.g. the insole) may be affixed and a lower surface on which the blade holder 16 is mounted.
The outer shell 12 may be made of a thermoformable material. As used herein, the expression “thermoformable material” refers to a material that is capable of softening when heated and of hardening again when cooled. Some non-limiting examples of different types of thermoformable material comprise ethylene vinyl acetate (EVA) foam, polyethylene foam, polystyrene foam, polypropylene foam and thermoformable materials sold under the trade-marks MEGABIX®, SURLYN®, SONTARA®, FORMO500®, BYLON®, MOSOCA® and NYLON® 66.
The outer shell 12 is thermoformed such that it comprises a heel portion 26 for receiving the heel of the player's foot, an ankle portion 28 for receiving the ankle of the player's foot, the ankle portion 28 comprising a medial side having a medial upper edge and a medial upper region, a lateral side having a lateral upper edge and a lateral upper region, and a rear portion 30 for receiving the rear side of the ankle, and a medial side portion (not shown) opposite a lateral side portion 24 for receiving the medial and lateral sides of the player's foot respectively, the medial and lateral side portions having medial and lateral upper edges. The medial and lateral side portions of the outer shell 12 extend forwardly from the heel and ankle portions 26, 28. The heel portion 26, ankle portion 28 and medial and lateral side portions form a foot-receiving cavity that conforms to the general shape of the player's foot.
The heel portion 26 of the outer shell 12 may be thermoformed such that it is substantially cup-shaped for following the contour of the player's heel.
The medial side of the ankle portion 28 of the outer shell 12 may have a medial cup-shaped depression for receiving the medial malleolus and the lateral side of the ankle portion 32 of the outer shell 12 may have a lateral cup-shaped depression for receiving the lateral malleolus. The lateral depression is located slightly lower than the medial depression for conforming to the morphology of the player's foot.
The rear portion 30 of the ankle portion 28 may be thermoformed such that it follows the lower part of the rear side of the player's foot.
The medial and lateral side portions of the outer shell 12 may be thermoformed such that they each define an inner surface that generally follows the contour of the side of the player's foot.
The outer shell 12 also comprises a tendon guard 33 for facing at least partially the upper part of the rear side of the ankle. The tendon guard 33 allows backwards flexion of the ankle when the player's foot moves towards full extension. The tendon guard 33 may be made of silicone or may be made by injection molding using polyester, polyurethane, polyamide, or other suitable thermoplastics. The selected material may have enough flexibility to allow the tendon guard 33 to flex rearwardly when pressure is applied on it while it should also have enough resiliency to allow the tendon guard 33 to return to its initial position when pressure is no longer applied on it.
The skate boot 10 may also comprise medial and lateral lace members 35, 37 mounted to the medial and lateral upper edges of the medial and lateral side portions of the outer shell 12. The medial and lateral lace members 35, 37 may be made of fabric, textile, leather or plastic and comprise a series of medial and lateral apertures for receiving a lace. Eyelets 36 may be punched into the lace apertures of lace members 35, 37.
The lace members 35, 37 can be mounted to the medial and lateral upper edges of the medial or lateral side portions of the outer shell 12 via any method known in the art such as stitching, overmolding, thermal bonding, high-frequency bonding, vibration bonding, piping, adhesive, or any combination thereof. In yet other embodiments, the lace members can form an integral part of the outer shell 12. In another embodiment, the lace members may be omitted and lace apertures and eyelets may be rather provided along the medial and lateral upper edges of the medial and lateral side portions of the outer shell. Medial and lateral bands or overlays may then be added to the outer shell in order to add rigidity to the skate boot in the lace regions.
It should be understood that the outer shell 12 of the skate boot 10 is not a limiting feature of the present invention, and that the outer shell 12 can be formed of a single integral piece, or can be made of multiple pieces that are connected together to form the overall shape of the outer shell 12. In addition, the outer shell 12 can be formed of foam, plastic, leather, or any other suitable material or combination of materials known in the art, without departing from the spirit of the invention.
Similarly, the toe-cap 14, blade holder 16 and blade 18 are not limiting features of the present invention. In addition, any suitable form of blade holder 16 and blade 18 can be used with the skate boot 10 without departing from the spirit of the invention. Blade holders 16 and blades 18 are known in the art, and as such will not be described in further detail herein.
The tongue 20 of the skate boot 10 can be seen in more detail in
As shown in
As shown in
The distal portion 28 is adapted for being positioned in proximity to the toes T. As such, as shown in
The tongue 20 comprises a core 46 for absorbing impacts to the tongue 20, a layer 48 at least partially defining the inner facing surface 44 of the tongue 20, a peripheral section 50 at least partially defining a periphery 52 of the tongue 20, an overlay 54 at least partially defining the outer facing surface 42 of the tongue 20, and a rigid insert 56 defining a section of the tongue 20 with increased rigidity.
The core 46 is configured for absorbing impacts to the tongue 20 such as to protect the foot of the player wearing the skate boot 10. To this end, the core 46 at least partially covers the forefoot FF and the front ankle portion FAP. As best shown in
The core 46 may be arched or may follow a curvature for following the profile of the forefoot FF and the front ankle portion FAR As such, the core 46 may be arched as it extends from the distal portion 60 to the proximal portion 64. In addition, the core 46 may also be arched or may follow a curvature between the left and right portions 66, 68 to better conform to the forefoot FF and the front ankle portion FAP. In order to accommodate the tongue 20 with the toe-cap 14 of the skate boot 10, the distal portion 60 of the core 46 defines an extension 76. The extension 76 is thinner than the remainder of the core 46, i.e., defines a reduced thickness of a material 78 of the core 46, such that an extended portion of the toe-cap 14 may be fitted over the extension 76 and affixed thereto (e.g., via stitching or gluing).
The peripheral section 50 of the tongue 20 is configured for being affixed to at least one of the proximal portion 64, the left portion 66 and the right portion 68 of the core 46 such that the peripheral section 50 extends along at least part of the periphery 74 of the core 46.
As best shown in
In this embodiment, the left and right peripheral sections 821, 822 are elongated to match the elongated shape of the left and right portions 66, 68 of the core 46, whereas the proximal peripheral section 823 has a U-shape similar to that of the proximal portion 64 of the core 46. Moreover, the respective shapes of each of the peripheral sections 821-823 may vary. For example, as shown in
In one embodiment, the core 46 comprises a first material 78 having a first density and the peripheral section 50 comprises a second material 83 having a second density, the first density being less than the second density. For example, the first density may be in the range of 0.015 to 0.05 g/cm3, 0.050 to 0.1 g/cm3, 0.1 to 0.15 g/cm3, or even 0.15 to 0.2 g/cm3. The second density may be in the range of 0.1 to 0.15 g/cm3, 0.15 to 0.2 g/cm3, 0.2 to 0.25 g/cm3, or even 0.25 to 0.3 g/cm3. It is however understood that the materials of the core and peripheral section are selected such that the density of the core material is less than the density of the peripheral section material. For example, the density of the core material may be around 0.15 g/cm3 and the density of the peripheral section material may be around 0.2 g/cm3. In another example, the density of the core material may be around 0.05 g/cm3 and the density of the peripheral section material may be around 0.15 g/cm3.
The material 78 of the core 46 may comprise foam material. For example, the foam material may comprise ethylene vinyl acetate foam, polyethylene foam, ethylene polypropylene foam, polyurethane foam, expanded foam (e.g., expanded polypropylene (EPP), expanded polyethylene (EPE), expanded polystyrene (EPS), engineering thermoplastic polyurethane (ETPU)), polyvinyl chloride (PVC) foam, silicone foam, epoxy foam, polyamide foam (e.g., nylon foam), polyethylene terephthalate (PET) foam, or any combination thereof. In other embodiments, the foam material may be foam made of consolidated microspheres. For example, the microspheres may be thermoplastic microspheres which can be hollow, i.e., empty, or alternatively can be filled with gas. In some embodiments, the microspheres may be glass microspheres.
In a variant, the core 46 may comprise a pocket (e.g., a bag) within which the material 78 may be placed). In one example of implementation, the material 78 may comprise non consolidated microspheres. For example, the material 78 may comprise microspheres placed in the pocket of the core 46 with a substance (e.g., oil) for linking the microspheres to one another. In some embodiments, the material 78 may comprise non expanded foam beads which may be placed in the pocket of the core 46. In other embodiments, the pocket of the 46 may be filled with air or any other suitable gas.
The material 83 of the peripheral section 50 may comprise felt. In other embodiments, the material 83 may comprise a mesh material, a fibrous material, a non-woven material, a laminate material (e.g., foam “sandwiched” between layers of textile) or any other suitable material.
The layer 48 is configured for covering the rear surface 72 of the core 46 and as such constitutes at least in part the inner facing surface 44 of the tongue 20.
As best shown in
The layer 48 comprises a backing material 80 having a soft texture in order to provide a soft texture to the inner facing surface 44 of the tongue 20. The backing material 80 may comprise felt. However, in other embodiments, the backing material 80 may comprise any other type of soft-textured material, including fibrous material, non-woven material, mesh material, a laminate material (e.g., foam “sandwiched” between layers of textile) or any other suitable material.
The peripheral section 50 may be configured in any other suitable way. For instance, although in this embodiment the peripheral section 50 is described as comprising three peripheral sections, i.e., peripheral sections 821-823, in other embodiments, the peripheral section may comprise any number of peripheral sections. For instance, in some embodiments, the peripheral section may be divided into two sections (e.g., left and right sections), four sections, or even more sections. Furthermore, in some embodiments, the peripheral section may simply extend along a majority of the periphery 74 at the left, proximal and right portions 66, 64, 68 of the core 46 and not necessarily an entirety of the periphery 74 at the left, proximal and right portions 66, 64, 68 of the core 46.
The overlay 54 is configured to at least partially cover the front surface 70 of the core 46 and, as such, at least partially defines the outer facing surface 42 of the tongue 20.
With additional reference to
The overlay elements 841-844 comprise an overlay material 86. In this embodiment, the overlay material 86 comprises polyurethane. In other embodiments, the overlay material 86 may comprise leather, denier nylon, denier cordura, ballistic nylon, mesh material, non woven material, or a film of thermoplastic material.
The overlay 54 may be configured in any other suitable way. For instance, although in this embodiment the overlay 54 is described as comprising four overlay elements, i.e., overlay elements 841-844, in other embodiments, the overlay may comprise any other number of overlay elements. For instance, in some embodiments, the overlay may be divided into two elements (e.g., left and right elements), three elements, five elements, or even more elements. In another embodiment, as shown in
The rigid insert 56 is configured to define the rigid section of the tongue 20, i.e., a section with increased rigidity, such as to provide additional protection to the wearer's foot. In this embodiment, with additional reference to
The rigid insert 56 comprises a rigid material 96. The rigid material 96 may comprise plastic, a carbon fiber laminate molded in epoxy, thermoplastic material such as polyethylene, polyamide (nylon), or polycarbonate, thermosetting resin, or any other suitable material.
The rigid insert 56 covers a part of the front surface 70 of the core 46. More particularly, in this embodiment, the rigid insert 56 covers the front surface 70 at the middle portion 62 of the core 46.
The rigid insert 56 may be manufactured in a variety of ways. For instance, in this embodiment, the rigid insert 56 is made via a thermoforming process. The thermoforming process uses a mold which defines therein the final shape of the rigid insert 56 (e.g., a curved shape as describe above). Any underlying structure of the rigid insert 56 is placed into the mold prior to initiating the molding procedure. The epoxy is then placed into the mold and the mold is subsequently placed into an oven for heating thereof. Once heated for an appropriate amount of time and the epoxy has reached an appropriate temperature, the mold is placed in a press which presses the shape of the rigid insert 56 on the heated material (e.g., epoxy) by applying a negative mold thereon. In other embodiments, the insert 56 may be manufactured in any other suitable way.
A method for making the tongue 20 will be described below with additional reference to
Starting with
Next, with additional reference to
With additional reference to
Next, as best shown in
Next, with additional reference to
As best seen in
The core 46 may be entirely covered on its front and rear surfaces 70, 72. More specifically, on its front surface 70, the core 46 may be covered by the overlay 54 and the rigid insert 56, while on its rear surface 72, the core 46 may be covered by the layer 48. Moreover, as described above, the periphery 74 of the core 46 may also be entirely covered by the peripheral section 50.
The construction of the tongue 20 allows maintaining the look and feeling of a traditional felt tongue while at the same time allowing a reduction in weight relative to a traditional felt tongue. For example, for a North American size 8 skate, a traditional felt tongue may weigh about 105 grams to about 110 grams. On the other hand, for a North American size 8 skate, a tongue according to the present invention may weigh about 75 grams to about 80 grams if all the other components to the exception of the core remain the same and about 50 grams to about 60 grams if the weight of the other components is also reduced. This translates to about 42% to about 55% reduction in weight from a traditional felt tongue to the tongue of the present invention (for a North American size 8 skate).
Any feature of any embodiment discussed herein may be combined with any feature of any other embodiment discussed herein in some examples of implementation.
Certain additional elements that may be needed for operation of certain embodiments have not been described or illustrated as they are assumed to be within the purview of those of ordinary skill in the art. Moreover, certain embodiments may be free of, may lack and/or may function without any element that is not specifically disclosed herein.
Although various embodiments and examples have been presented, this was for the purpose of describing, but not limiting, the invention. Various modifications and enhancements will become apparent to those of ordinary skill in the art and are within the scope of the invention, which is defined by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2856781 | Jul 2014 | CA | national |
