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EP3056250B1 - Lame de crosse de hockey et son procédé de fabrication - Google Patents

Lame de crosse de hockey et son procédé de fabrication Download PDF

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Publication number
EP3056250B1
EP3056250B1 EP16154779.9A EP16154779A EP3056250B1 EP 3056250 B1 EP3056250 B1 EP 3056250B1 EP 16154779 A EP16154779 A EP 16154779A EP 3056250 B1 EP3056250 B1 EP 3056250B1
Authority
EP
European Patent Office
Prior art keywords
face member
blade
composite material
layer
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16154779.9A
Other languages
German (de)
English (en)
Other versions
EP3056250A1 (fr
Inventor
Eric Allard
Travis Downing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sport Maska Inc
Original Assignee
Sport Maska Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/620,896 external-priority patent/US20160236050A1/en
Application filed by Sport Maska Inc filed Critical Sport Maska Inc
Publication of EP3056250A1 publication Critical patent/EP3056250A1/fr
Application granted granted Critical
Publication of EP3056250B1 publication Critical patent/EP3056250B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/70—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00 with bent or angled lower parts for hitting a ball on the ground, on an ice-covered surface, or in the air, e.g. for hockey or hurling
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres

Definitions

  • the application relates generally to sporting equipment and, more particularly, to blades for hockey sticks.
  • Conventional hockey sticks such as those used for playing ice or street hockey, may have a blade made from fiber-reinforced composite materials. Although such fiber-reinforced composite materials are stiff in specific directions of load and are also light, other materials may have more desirable properties, for example under impact loads and in vibration damping response.
  • the document US2004/0235592 discloses a hockey stick blade made of composite material and which further discloses a face member embedded in the body of the blade.
  • a blade for a hockey stick comprising: a body adapted to be connected to the proximal end of a shaft, the body defining spaced apart first and second outer impact surfaces, each of the impact surfaces having a heel portion proximate a shaft connection point and a toe portion spaced apart from the shaft connection point, the body including an outer layer having an outer surface defining at least part of each of the first and second impact surfaces of the body, the outer layer made of a first material, the first material being a composite material; and a face member made from a second material different from the first material, the face member having opposed inner and outer surfaces interconnected by a peripheral edge, the face member overlaying and embedded in the body, the peripheral edge being in contact with the first material and at least a major part of the inner surface of the face member being in contact with the body of the blade, the outer surface of the face member defining part
  • the blade may include any one or any combination of the following characteristics:
  • a hockey stick comprising a shaft having a proximal end and a distal end opposite the proximal end; and a blade as defined above connected to the proximal end of the shaft.
  • a method for making a hockey stick blade comprising: positioning a face member over an outer surface of a layer of uncured composite material, the face member being made of a material different from the uncured composite material; putting the face member and the outer surface of the layer of uncured composite material extending around the face member in contact with a blade-shaped mold surface; and heating the uncured layer of composite material and applying pressure to the layer of uncured composite material against the mold surface until the face member is embedded in the layer of composite material and the composite material is cured.
  • the method may include any one or any combination of the following:
  • Fig. 1 illustrates generally a hockey stick 10 (or simply "stick io").
  • the stick 10 can be used to play any suitable sport or activity, and is not strictly limited to the sport of ice hockey.
  • the stick 10 has a generally elongated shaft 20 which can be manipulated by the user of the stick 10, a blade 30 which is adapted to contact an object such as a ball or puck, and a face member 40 which reinforces portions of the blade 30.
  • the shaft 20 joins, or is made integral with, the blade 30, thereby forming the stick 10.
  • the shaft 20 is manipulated by the hands of the user in order to control the blade 30.
  • the shaft 20 therefore has a shaft body 22, generally of a rectangular or oblong cross-section, which can be gripped by the user and which provides the corpus to the shaft 20.
  • the shaft body 22 extends between a distal end 24 and a proximal end 26.
  • the distal end 24 corresponds to the free extremity of the shaft body 22, and the proximal end 26 corresponds to the extremity of the shaft body 22 which is connected to, or made integral with, the heel or neck of the blade 30.
  • the proximal end 26 is made integral with the blade 30, such as during the manufacturing process of the stick 10, the stick 10 is a one-piece, integral construction.
  • the shaft body 22, and thus the shaft 20, can take any suitable shape or have features and components which make it suitable for the activity for which it is used. For example, it may be desirous to reduce the weight of the shaft 20, which constitutes a major component of the overall weight of the stick 10.
  • the shaft body 22 of the shaft 20 can be hollow so as to define an elongated body cavity. If it is desired to additionally reinforce the stiffness of shaft 20 while still providing the requisite flexibility, one or more longitudinal shaft ribs can be disposed within the body cavity, and extend between opposed interior walls of the shaft body 22. Each shaft rib can extend along some portion, or all, of the length of the shaft body 22 between the first end 24 and the second end 26.
  • each shaft rib can be discontinuous along their length. It will therefore be appreciated that each shaft rib can reinforce the stiffness of the shaft body 22 along its length and/or along its width, while still providing the shaft body 22, and thus the shaft 20, with the desired amount of flexibility. Combinations of features not covered by the claims are to be understood as examples, not covered by the invention.
  • the blade 30 can be any suitable curved body which provides one or more impact surfaces to be used to manipulate the object. It can also be curved along its length to provide for improved manipulation of the object. Some portion, or all, of the blade 30 can be hollow in order to reduce the overall weight of the stick 10.
  • the blade 30 has a body 31 which forms the corpus of the blade 30 and provides structure thereto.
  • the body 31 is an elongated object which extends along a blade axis 32 between a heel portion 33 proximate the connection with the shaft 20 and a toe portion 34 spaced apart from the connection with the shaft 20.
  • the heel portion 33 generally defines a curved bottom edge of the body 31 which contacts the ice or playing surface when the stick 10 is in use.
  • the toe portion 34 may otherwise be referred as the tip of the blade 30.
  • the body 31 may also have a neck portion, which defined a connection point of the blade 30 in direct contact with the proximal end 26 of the shaft 20, and which is joined with this end so as to form the stick 10.
  • the general shape of the blade 30 is defined between these components, in that the body 31 of the blade 30 extends between the heel portion 33 and the toe portion 34. It will be appreciated that the blade 30 can take shapes and configurations which differ from those shown in the figures.
  • the body 31 defines spaced-apart first and second outer impact surfaces 35A, 35B.
  • Each of the impact surfaces 35A, 35B is a contact surface for impacting the object and providing a force thereto.
  • the impact surfaces 35A, 35B may be exposed to the environment, or covered by a protective coating, for example transparent.
  • the first impact surface 35A designates the "front" area of the body 31 which forms the primary contact surface with the object being manipulated, and is generally concave
  • the second impact surface 35B is a "rear" surface, generally convex.
  • Both the first and second impact surfaces 35A, 35B extend along the entirety of the body 31 and define part of the heel portion 33 and of the toe portion 34. The curvature and shape of the impact surfaces 35A, 35B therefore defines that of the blade 30.
  • the body 31 has an outer material layer 37.
  • the outer material layer 37 is made of composite material, and may be formed of a single or multiples connected plies of composite materials, with the multiple plies disposed in side by side and/or overlaying relationship.
  • the body 31 has an inner blade cavity 36 and the outer material layer 37 circumscribes this inner blade cavity 36.
  • the inner blade cavity 36 may be hollow; alternately, the inner blade cavity 36 may be filed with an appropriate type of material, for example an appropriate type of foam including, but not limited to, PVC or polyurethane foam.
  • the outer material layer 37 delimits the thickness, length, and height of the inner blade cavity 36 within the body 31.
  • the outer surface of the outer material layer 37 forms at least part of each of the outer impact surfaces 35A, 35B. In the embodiment shown, the outer surface of the outer material layer 37 corresponds to the entire second impact surface 35B and to a peripheral portion of the first impact surface 35A, as will be further detailed below.
  • the outer material layer 37 may include any appropriate type of composite material, including, but not limited to, suitable fiber-reinforced polymers, for example fiber-reinforced epoxy.
  • the outer material layer 37 is made of an epoxy/carbon fiber material.
  • the outer material layer 37 consists of a fiber portion and a resin portion, the resin portion serving as a matrix in which the fibers are embedded in a defined manner.
  • the composite material may be provided in prepreg form, superposed in a "lay-up" manner and then cured to a rigid condition using heat and pressure.
  • the blade 30 may have two or more internal ribs 38 spanning the inner blade cavity 36.
  • Each internal rib 38 reinforces the stiffness of the body 31 between the first and second impact surfaces 35A, 35B while helping to reduce the overall weight of the blade 30, and thus the overall weight of the stick 10.
  • Each internal rib 38 extends longitudinally along the blade axis between the heel portion and the toe portion.
  • each internal rib 38 may extend transverse to the blade axis between the top and bottom edges of the body 31. Irrespective of its orientation, each internal rib 38 forms a bridge between opposed inner surfaces of the outer material layer 37, and can be formed during the making of the blade 30 using any suitable technique.
  • each internal rib 38 is made of the same composite material as the outer material layer 37; alternately, different materials may be used.
  • the internal rib 38 can consist of a single, substantially uninterrupted body.
  • a number of discrete internal ribs 38 can be used forming rib sections which are spread apart. Each rib section divides the inner blade cavity 36 into separate hollow channels.
  • the blade includes at least one face member 40 made of a material different from that of the outer material layer 37.
  • the material of the face member(s) 40 is selected depending on the property of the blade 30 which is designed to be tailored by it.
  • the material of the face member(s) may be more rigid in torsion and/or bending, more resistant to cracks, have increased vibration dampening properties, and/or have a more isotropic rigidity than the material of the outer material layer 37.
  • each face member 40 provides a localized zone of increased reinforcement over the portion of the body 31 where it is located.
  • Such reinforcement may provide for an increased durability of the blade 30, a better feel and control of the blade 30 by users of the stick 10, and/or a modification of the stiffness and torsional rigidity of the blade 30, for example.
  • suitable materials for the face member 40 include composite materials different from that of the outer material layer 37, ceramics, ceramic matrix composites (CMC), polymer/elastomer materials, organic materials, metals, alloys, metal matrix composites (MMC), etc.
  • the face member 40 is made of a metal material, for example 6 - 4 titanium alloy ( ⁇ - ⁇ Ti) or 7075 aluminum alloy, such as to provide suitable isotropic rigidity properties which help to stiffen the blade 30 in both bending and torsion efficiently. Therefore, using a metal material for the face member 40 represents a potential upgrade in blade durability and responsiveness due to the isotropic properties of metal materials.
  • Each face member 40 has an inner surface 42A and an outer surface 42B spaced apart from one another across the thickness of the face member 40, and a peripheral edge 44 interconnecting the inner and outer surfaces 42A, 42B.
  • the face member 40 is embedded in the body 31 by being embedded in the outer material layer 37: at least a major part of the peripheral edge 44 and of the inner surface 42A are in contact with the material of the outer material layer 37.
  • the entirety or substantially the entirety of the peripheral edge 44 and of the inner surface 42A are in contact with the material of the outer material layer 37.
  • the peripheral edge 44 is bevelled, such that the perimeter of the inner surface 42A is smaller than the perimeter of the outer surface 42B, which may facilitate contact between the peripheral edge 44 and the outer material layer 37.
  • the material of the outer material layer 37 may extend over a periphery of the face member 40, such that only a central portion of the face member 40 is exposed and visible.
  • the outer surface 42B of the face member 40 defines part of the first impact surface 35A, surrounded by the outer material layer 37 defining the remaining part of the first impact surface 35A.
  • the outer surface 42B of the face member 40 is aligned with the adjacent outer surface of the outer material layer 37, such that the first impact surface 35A is continuous over the transition between the outer material layer 37 and the face member 40.
  • the outer surface 42B of the face member 40 is therefore flush or level with the adjacent outer surface of the outer material layer 37, and is thus able to enter into contact with the playing object.
  • the blade 30 may alternately include two or more face members embedded in the body 31, each defining a part of one of the impact surfaces 35A, 35B.
  • the face member 40 may also include multiple layers of material embedded in the body 31.
  • the blade 30 is integrally formed.
  • integrally formed refers to the relationship between the face member(s) 40 and the materials of the body 31 (outer material layer 37, foam if applicable), in that the face member(s) 40 are embedded in the body 31, for example in the outer material layer 37, during its molding process, incorporating the face member(s) 40 in the cured material layer 37 in the finished blade 30.
  • such an integral construction reinforces the bond between the material layer 37 and face member(s) 40 to reduce the chances of detachment of the face member(s) 40 during use, for example by contrast to heads for striking objects where a reinforcement piece is adhered or otherwise applied separately to the head after it has been manufactured.
  • the face member 40 extends along a direction which is transverse to the longitudinal blade axis to span across two or more internal ribs 38.
  • the relationship between the face member 40 and the internal ribs 38 may vary.
  • the face member 40 may overlay a portion of the outer material layer 37 spanning across two internal ribs 38, each rib 38 extending near opposite ends of the face member 40.
  • the face member 40 may overlay a portion of the outer material layer 37 spanning across three internal ribs 38, for example two ribs 38 extending near opposite ends of the face member 40, and a third rib 38 disposed between these two ribs 38.
  • the face member 40 may be embedded in the body 31 by being embedded in the outer material layer 37, such that at least a major part (and preferably, the entirety or substantially the entirety) of the peripheral edge 44 and of the inner surface 42A are in contact with the material of the outer material layer 37 - i.e., the outer material layer 37 extends between the face member 40 and the foam.
  • the face member 40 may be embedded in the body 31 by having at least a major part (and preferably, the entirety or substantially the entirety) of the peripheral edge 44 in contact with the material of the outer material layer 37, the outer material layer 37 optionally overlapping a periphery of the outer surface 42B of the face member 40, and with that at least a major part (and preferably, the entirety or substantially the entirety) of the inner surface 42A supported by and in contact with the foam and with the ribs 38 if such are present.
  • having the face member 40 embedded in the body 31 allows for the face member 40 to have a greater impact on the properties of the body 31, for example in contrast to heads for striking objects where the reinforcement piece is applied only against inner ribs spanning a hollow cavity of the head.
  • the one or more face member(s) 40 can assume different shapes and configurations in order to achieve such functionality.
  • the face member 40 may extend along the periphery of the body 31 along the top and/or bottom edges thereof, in the toe portion and/or the heel portion of the blade 30, depending on the property(ies) of the blade to be tailored by the face member(s) 40 - i.e. wear resistance, stiffness, impact resistance, vibration dampening, etc.
  • the Figure shows the inner surface which is to be received against the body 31 (for example against the outer material layer 37).
  • the face member 40A is shaped as a varying thickness metal plate extending longitudinally along a length of the body of the blade between the heel portion and the toe portion.
  • the inner surface of the face member 40A includes a central protuberance 41A forming a zone of increased thickness with respect to a remainder of the face member 40A.
  • the protuberance 41A has an irregular shape and extends along the length of the length of the face plate 40.
  • the protuberance 41A may help to reinforce those regions of the outer impact surface 35A of the blade 30 which are most often in contact with the playing object.
  • the shape of the protuberance is determined to correspond to regions of highest load or highest deflection in the blade 30 under particular constraint conditions.
  • FIG. 3B another alternate configuration for the face member 40B is shown.
  • the Figure shows the inner surface which is to be received against the body 31 (for example against the outer material layer 37).
  • the face member 40B is shaped as a varying thickness metal plate extending longitudinally along a length of the body of the blade between the heel portion and the toe portion.
  • the inner surface of the face member 40B also includes a central protuberance 41B forming a zone of increased thickness with respect to a remainder of the face member 40B.
  • the protuberance 41B has an irregular shape and extends along the length of the length of the face plate 40, covering more of the toe portion that that of the previous embodiment.
  • the shape of the protuberance 41B may be determined to correspond to regions of highest load or highest deflection in the blade 30 under particular constraint conditions different from those of the previous embodiment.
  • both the inner and outer surfaces may be smooth, defining a thickness of the face member 40C which is uniform along its length, and accordingly may be easier to manufacture than the face members 40A, 40B.
  • FIG. 3D another alternate configuration for the face member 40D is shown.
  • the Figure shows the inner surface which is to be received against the body 31 (for example against the outer material layer 37).
  • the metal face member 40D is shaped as a plate extending longitudinally along a length of the body of the blade between the heel portion and the toe portion, with the inner surface including multiple reinforcement blocks 41D forming local zone of increased thickness with respect to a remainder of the face member 40D.
  • the thickness of the reinforcement blocks 40D can be uniform or vary between blocks 40D.
  • FIG. 3E another alternate configuration for the face member 40E is shown.
  • the Figure shows the inner surface which is to be received against the body 31 (for example against the outer material layer 37).
  • the metal face member 40E includes another configuration of plate and reinforcement blocks 41E forming local zone of increased thickness with respect to a remainder of the face member 40D.
  • the thickness of the reinforcement blocks 40E can be uniform or vary between blocks 40E. "Lattice"-like configuration such as the face members 40D, 40E may be easier to manufacture than the configurations of Figs. 3A and 3B .
  • the outer surface of the face member which in use is the visible surface, may be smooth or alternately be provided with a textured pattern, or with raised features defining a variation in thickness, for example similarly to the inner surface.
  • Fig. 3F shows an alternate configuration for the face member 40F, shown here embedded in the outer material layer 37 to define the body of the blade 30.
  • the face member 40F which can have an inner surface with any of the above-described configurations, extends from the bottom edge of the blade 30 along the entire length of the blade, covers a majority of the toe portion and only a small part of the heel portion, while the top portion of the blade 30 is free from the face member 40F.
  • such a configuration used with a face member 40F made of metal material provides for increased stiffness in bending and torsion, by comparison with a similar blade made only with the composite material.
  • Fig. 3G shows another alternate configuration for the face member 40G, also shown embedded in the outer material layer 37 to define the body of the blade 30. It can be seen that the face member 40G extends from the bottom edge of the blade 30 in the heel portion only, forming a band coming higher in the toe portion such that the top and bottom edges of the blade in the toe portion are left uncovered.
  • a face member 40F made of metal material provides for increased stiffness in torsion, by comparison with a similar blade made only with the composite material.
  • the shape of the face member can thus be selected in accordance with the property of the body 31 to be changed, for example the stiffness in torsion and/or bending.
  • the method involves the use of a mold, and curing using heat and pressure.
  • the outer material layer 37 is formed in its uncured state by one or more plies of prepreg wrapped around a bladder, or around a foam core; in the case of a blade with internal ribs, multiple bladders/foam cores may be individually wrapped with prepreg material to define the ribs, and the wrapped bladders/foam cores are then wrapped together with prepreg material to form the outer material layer 37.
  • the face member is positioned over the uncured outer material layer 37, or against the foam core and surrounded by the outer material layer 37.
  • the inner surface of the face member may be abraded prior to assembly.
  • Adhesive can also be added between the face member and composite material layer or foam, for example in the form of an adhesive resin film.
  • the face member and uncured outer material layer adjacent to it are then put into contact with a mold surface defining the desired shape for the blade impact surface.
  • the mold surface typically forms part of a mold enclosure which encloses the uncured composite material wrapped around the bladder(s)/foam core(s) together with the face member to form the blade.
  • the uncured outer material layer 37 is heated while pressing it against the mold surface, for example by inflating the bladder(s) and/or applying pressure with the mold surfaces. As it is heated, the composite material first softens, and the pressure and heat allow the face member to "sink" and become embedded in the outer material layer 37; the face member and composite material around it being pressed against the mold surface ensuring the formation of a continuous impact surface.
  • the assembled composite material and face member are heated and compressed until the composite material is cured, the face member remaining embedded in it.
  • the cavities created in the cured blade when the bladders are removed may be filled with material such as expandable foam, or alternately may remain hollow.
  • the face member is made of a material that is in desired or cured state before assembly with the uncured outer material layer, for example a metal, an alloy, or a cured composite material.
  • the face member is made of another material that is uncured or partially cured, and reaches its desired cured state simultaneously with the curing of the outer material layer.
  • a coating for example a clear protective coating, may be applied over the impact surfaces of the cured blade, for example for increased durability.

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Claims (14)

  1. Une palette pour une crosse de hockey, comprenant :
    un corps (31) apte à être relié à l'extrémité proximale (26) d'un manche (20), le corps (31) définissant une première et une seconde surface d'impact extérieures (35A, 35B) espacées l'une de l'autre, chacune des surfaces d'impact (35A, 35B) possédant une partie de talon (33) à proximité d'un point de liaison au manche et une partie de bout (34) à distance du point de liaison au manche, le corps (31) comprenant une couche externe (37) avec une surface externe définissant au moins partiellement chacune des première et seconde surfaces d'impact (35A, 35B) du corps (31), la couche externe (37) étant réalisée en un premier matériau, le premier matériau étant un matériau composite ; et
    un élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) réalisé en un second matériau différent du premier matériau, l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) possédant des surfaces interne et externe (42A, 42B) opposées interconnectées par un bord périphérique (44), l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) recouvrant le corps (31) et étant intégré dans celui-ci, le bord périphérique (44) étant en contact avec le premier matériau et au moins une majeure partie de la surface interne (42A) de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) étant en contact avec le corps (31) de la palette (30), la surface externe (42B) de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) définissant une partie de la première surface d'impact (35a) du corps (31), la surface externe de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) étant alignée avec la surface externe de la couche externe (37) adjacente à l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) de telle sorte que la première surface d'impact (35a) du corps (31) soit continue sur une transition entre la couche externe (37) et l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G),
    dans laquelle la palette (30) possède une cavité interne (36) entourée par la couche externe (37), la cavité (36) étant parcourue par une pluralité de nervures internes espacées entre elles (38) s'étendant longitudinalement entre la partie de talon (33) et la partie de bout (34), les nervures (38) interconnectant des surfaces internes opposées de la couche externe (37), l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) recouvrant une partie du corps (31) s'étendant sur l'étendue d'au moins deux nervures internes (38).
  2. La palette telle que définie dans la revendication 1, dans laquelle une totalité ou substantiellement la totalité de la surface interne (42A) de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) est en contact avec le corps (31) de la palette (30).
  3. La palette telle que définie dans la revendication 1 ou 2, dans laquelle l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) recouvre et est intégré dans la couche externe (37) de telle sorte que le bord périphérique (44) et la au moins une majeure partie de la surface interne (42A) soient en contact avec le premier matériau, et éventuellement dans laquelle une totalité ou substantiellement la totalité de la surface interne (42A) de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) est en contact avec le premier matériau.
  4. La palette telle que définie dans l'une des revendications précédentes, dans laquelle la palette (30) présente une rigidité différente en torsion ou en flexion, ou en torsion et en flexion par rapport au corps (31) de la palette (30) sans l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) intégré dedans.
  5. La palette telle que définie dans l'une des revendications précédentes, dans laquelle :
    le second matériau est un métal ; et/ou
    le second matériau est plus résistant aux fissures que le premier matériau ; et/ou le second matériau présente des propriétés accrues d'amortissement des vibrations par rapport au premier matériau ; et/ou le second matériau présente une rigidité isotrope et le premier matériau présente une rigidité non isotrope.
  6. La palette telle que définie dans l'une des revendications précédentes, dans laquelle l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) s'étend longitudinalement depuis la partie de talon (33) jusqu'à la partie de bout (34).
  7. La palette telle que définie dans l'une des revendications précédentes, dans laquelle :
    la surface externe (42B) de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) est lisse ; et/ou
    la surface interne (42A) de l'élément frontal (40A, 40B, 40D, 40E) comprend au moins une protubérance (41A, 41B, 41D, 41E), de telle sorte que l'élément frontal (40A, 40B, 40D, 40E) présente une épaisseur variable.
  8. La palette telle que définie dans l'une des revendications précédentes, dans laquelle l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) s'étend au moins jusqu'à un bord du corps (31).
  9. La palette telle que définie dans l'une des revendications précédentes, comprenant en outre un revêtement par-dessus les surfaces d'impact (35A, 35B) du corps (31).
  10. Une crosse de hockey comprenant :
    un manche (20) possédant une extrémité proximale (26) et une extrémité distale opposée à l'extrémité proximale (26) ; et
    une palette (30) telle que définie dans l'une des revendications précédentes, reliée à l'extrémité proximale (26) du manche (20).
  11. Un procédé de fabrication d'une palette de crosse de hockey, comprenant :
    le positionnement d'un élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) au-dessus d'une surface externe d'une couche (37) de matériau composite non durci, l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) étant réalisé en un matériau différent du matériau composite non-durci ;
    le placement de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) et de la surface externe de la couche (37) de matériau composite non durci s'étendant autour de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) en contact avec une surface de moule en forme de palette ; et
    le chauffage de la couche non durcie (37) de matériau composite et l'application d'une pression à la couche (37) de matériau composite non durci contre la surface du moule jusqu'à ce que l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) soit intégré dans la couche (37) de matériau composite et que le matériau composite soit durci, une surface externe du matériau composite durci entourant l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) se trouvant alignée avec une surface externe (42B) de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) pour former une surface continue,
    dans lequel la palette (30) possède une cavité interne (36) entourée par la couche (37), la cavité (36) étant parcourue par une pluralité de nervures internes éloignées les unes des autres (38) s'étendant longitudinalement entre une partie de talon (33) et une partie de bout (34) d'un corps de la palette, les nervures (38) interconnectant des surfaces internes opposées de la couche externe (37), l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) recouvrant une partie du corps (31) s'étendant sur l'étendue d'au moins deux nervures internes (38).
  12. Le procédé tel que défini dans la revendication 11, dans lequel le positionnement de l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) au-dessus de la surface externe comprend l'application d'un adhésif entre l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G) et la surface externe.
  13. Le procédé tel que défini dans la revendication 11 ou 12, dans lequel la couche (37) de matériau composite non durci est enroulée autour d'au moins une vessie, et l'application d'une pression est opérée par gonflage de la au moins une vessie.
  14. Le procédé tel que défini dans l'une des revendications 11 à 13, comprenant en outre l'application d'un revêtement par-dessus le matériau composite durci et l'élément frontal (40, 40A, 40B, 40C, 40D, 40E, 40F, 40G).
EP16154779.9A 2015-02-12 2016-02-09 Lame de crosse de hockey et son procédé de fabrication Active EP3056250B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/620,896 US20160236050A1 (en) 2015-02-12 2015-02-12 Hockey stick blade and method of making same
CA2885001A CA2885001C (fr) 2015-02-12 2015-03-16 Lame de baton de hockey et procede de fabrication de ladite lame

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EP3056250A1 EP3056250A1 (fr) 2016-08-17
EP3056250B1 true EP3056250B1 (fr) 2018-12-05

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CN106267756A (zh) * 2016-09-23 2017-01-04 桐乡波力科技复材用品有限公司 一种应用Gel红色胶生产的击球板的制作方法
CN106422239A (zh) * 2016-09-23 2017-02-22 桐乡波力科技复材用品有限公司 一种应用Gel红色胶生产的击球板
US12029951B2 (en) 2017-12-14 2024-07-09 Bauer Hockey, Llc Hockey stick and blade for hockey stick
US12042706B2 (en) 2017-12-14 2024-07-23 Bauer Hockey, Llc Hockey stick with variable stiffness blade

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US7963868B2 (en) * 2000-09-15 2011-06-21 Easton Sports, Inc. Hockey stick
US7294072B2 (en) * 2005-04-11 2007-11-13 Nick Montecchia Hockey stick blade
WO2012012287A2 (fr) * 2010-07-23 2012-01-26 Easton Sports, Inc. Crosses de hockey à groupements de bosses à poids centré co-moulées et autres structures composites
US20130160921A1 (en) * 2011-12-22 2013-06-27 Nathan Robert DiCasmirro Cushioned tape and method to improve playability and grip

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