EP1924333B1 - Lames de patin et procédés et appareil de fixation - Google Patents

Lames de patin et procédés et appareil de fixation Download PDF

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Publication number
EP1924333B1
EP1924333B1 EP05790959A EP05790959A EP1924333B1 EP 1924333 B1 EP1924333 B1 EP 1924333B1 EP 05790959 A EP05790959 A EP 05790959A EP 05790959 A EP05790959 A EP 05790959A EP 1924333 B1 EP1924333 B1 EP 1924333B1
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EP
European Patent Office
Prior art keywords
blade
skate
skate blade
tab
elongated
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.)
Not-in-force
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EP05790959A
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German (de)
English (en)
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EP1924333A1 (fr
Inventor
Anatol Podolsky
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C1/00—Skates
    • A63C1/30—Skates with special blades
    • A63C1/32—Special constructions of the simple blade
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C1/00—Skates
    • A63C1/02—Skates rigidly mounted on the sole of the boot

Definitions

  • the present disclosure relates generally to ice skate blades for figure skating and to methods and apparatus for securing figure skating blades to a boot.
  • Figure 1 depicts a traditional ice skate blade 100 having an elongated blade 102 affixed to a toe plate 104 and a heel plate 106.
  • U.S. Patent No. 4,993,725 discloses a skate blade made from a single piece of material.
  • the skate blade includes a blade portion and two extension portions that connect the skate blade to boot plates.
  • the extension portions are twisted 90 degrees and then bent with respect to the blade portion.
  • This twisting requires the blade material to be heated to a temperature at which the material becomes malleable.
  • Such heating as discussed above, complicates the manufacturing process and also introduces weakness into the blade.
  • the substantial amount of steel used in the skate blade of U.S. Patent No. 4,993,725 increases the weight of the skate blade.
  • the toe plate 104 and heel plate 106 of the skate blade 100 are substantially planar and are designed to attach to the bottom of a skate boot.
  • traditional skate blades are commonly affixed to the bottom of a skate boot through the use of standard screws (e.g., wood screws), brackets and/or rivets.
  • these wood screws, or like devices would be inserted through a plurality of holes 108 in the toe plate 104 and the heel plate 106 and into the bottom of a skate boot.
  • skate blades are generally made of a high carbon steel or stainless steel material. These relatively heavy materials increase the weight of the skate blade, thereby increasing the amount of effort needed by the user during skating.
  • Steel blades also require substantial maintenance, such as frequent sharpening and cleaning and/or protective treatments to keep the blade in a preferred condition.
  • edges of skate blades are continually worn down during use, especially when the user makes sharp turns or quick starts and stops.
  • Sharpening steel blades is not a simple process and is generally performed by trained professionals. As can be appreciated, the costs of maintaining skate blades can be substantial.
  • ice skate blades are often subjected to severe mechanical stresses and strains caused by rapid accelerations, sharp turns and/or sudden stops. These movements subject the skate blades to extreme bending and torsional stresses. Not only do the skate blades need to resist mechanical failure, they also need to be corrosion resistant. Skate blades are continually exposed to melted ice, and traditional steel blades require additional care to prevent against rust and to protect the blade from other contaminants.
  • blade materials such as ceramics
  • ceramics are light weight and have a high hardness, but have other setbacks.
  • ceramic materials have a fracture toughness much too low for practical use.
  • a unitary blade design is provided that facilitates attachment to a skate boot. In certain embodiments, such a blade may be attached to the boot without the need for substantial heating, such as for twisting and/or rehardening. In certain embodiments, the unitary blade may also have shock absorption features.
  • the fixation of the blade to the boot reduces play therebetween and/or decreases warping of the skate blade and/or the boot leather.
  • Such fixation also preferably allows the blade to have a longer life span.
  • the skate blade includes temporary fixation holes that allow a user to make minor adjustments to a position of the blade prior to a more permanent securing of the blade to the boot.
  • the invention provides a skate blade as claimed in claim 1.
  • the skate blade comprises a titanium material, such as Ti 6 Al 4 V.
  • the invention also extends to a method of manufacturing a skate blade as claimed in claim 12.
  • the skate blade comprises a titanium material, such as Ti 6 Al 4 V.
  • skate boot with which a skate blade is associated will not be shown.
  • toe and heel portions of the skate boot are all adapted, in a well known manner, for attachment to, or for engagement with the portions of a skate blade.
  • some skate boots are constructed and arranged such that the toe portion and the heel portion occupy a common horizontal plane.
  • Other skate boots are constructed such that the heel portion is at a higher plane than the toe portion.
  • bottom portions of the boot may not be flat, but may be shaped to conform to the requirements of the skate blade.
  • skating footwear other than boots may be used with embodiments of the skate blade described hereinafter. All such variations are to be considered as within the spirit and scope of the disclosure.
  • Figure 2 illustrates a plan view of a flat, unitary, metal member out of which embodiments of the invention may be formed.
  • a skate blade 200 is formed or cut out of a single, flat, relatively larger, piece of metal (not shown), such as, for example, a sheet of metal.
  • the formation of the skate blade 200 may be performed by the use of any of a number of well known means that produces a flat metal member of generally uniform thickness.
  • the skate blade 200 may be formed through EDM or numerical controlled milling, die cutting, cutting with the use of electric, gas, plasma, water, or laser cutting equipment, die stamping or forging metal material under heat and pressure, casting, injection molding, or employing other conventional means known in the metal working industry and prior art.
  • the skate blade 200 comprises an elongated portion 202 that is configured for engagement with ice while skating. Extending from a top portion of the elongated portion 202 are multiple sets of securing tabs: a first set 204 of securing tabs is located near a proximal end of the elongated portion 202; a second set 206 of securing tabs is located near the middle of the elongated portion 202; and a third set 208 of securing tabs is located near a distal end of the elongated portion 202. As shown, each of the securing tabs of the sets 204, 206, and 208 includes a fixation hole for securing the skate blade 200 to a boot or a boot plate.
  • At least one of the securing tabs in sets 204, 206, and 208 is bent about a bend axis 212 such that a screw or other fixation device may be inserted through the fixation hole and into the bottom of the boot.
  • half of the securing tabs in sets 204, 206, and 208 may be bent to one side of the skate blade 200 while the other half of the tabs may be bent to the opposite side of the skate blade 200.
  • securing tabs including the number and/or configuration of the securing tabs, may be used in securing the skate blade 200 to a boot. Furthermore, an equal number of securing tabs need not be bent to opposing sides of the skate blade 200.
  • the skate blade 200 preferably comprises a stiff metal.
  • the skate blade 200 advantageously comprises a titanium material.
  • titanium material refers to any titanium based material, such as, for example, commercially pure titanium, titanium alloys and titanium matrix composites. Such titanium material provides advantages of strength and/or fracture resistance and is also remarkably lightweight. Furthermore, the titanium material provides for a rust resistant material.
  • the skate blade 200 comprises Ti 6 Al 4 V, which is classified by the American Society for Testing and Materials as ASTM-F136 titanium.
  • F136 titanium may advantageously provide a strong crystalline structure and an increased fatigue limit for the skate blade 200.
  • the unitary metal member 200 comprises a metal alloy, such as, for example, steel or stainless steel.
  • the thickness of the skate blade 200 ranges between about 1.5 millimeters and about 5 millimeters. In a more preferred embodiment, the thickness of the skate blade 200 is approximately 3.5 millimeters. In certain embodiments, the length of the elongated portion ranges between about 10 centimeters to about 31 centimeters and may depend on the size of the associated footwear and/or skater.
  • the ice engaging elongated portion 202 may be further coated with a wear resistant material such as diamond, silicon carbide, or the like, in order to reduce the number of times that the .blade must be sharpened as a result of use by a skater.
  • a wear resistant material such as diamond, silicon carbide, or the like
  • the illustrated skate blade 200 provides for several advantages over traditional skate blades. For example, when forming the skate blade 200, it is not necessary to weld or attach other materials or portions to the skate blade 200. This preferably facilitates the manufacturing process, reduces the cost of the skate blade 200, and/or avoids the introduction of weakness into the blade that occurs with the attaching together of multiple pieces. Furthermore, it is not necessary to twist portions of the skate blade 200 in order to attach the skate blade 200 to a boot. Rather, the user may bend the securing tabs about the bend axis 212.
  • Figures 3A-3F illustrate certain embodiments of securing tabs usable with a skate blade, according to embodiments of the invention.
  • the securing tab embodiments shown in Figures 3A-3F may be used with the skate blade 200 of Figure 2 .
  • a skate blade 300 has a first set 306 and a second set of 308 of securing tabs wherein each of the sets 306 and 308 includes two securing tabs.
  • the securing tabs are generally elongated and are substantially the same length.
  • each of the securing tabs has a circular portion near the end of the securing tab that includes a fixation hole.
  • Figure 3B illustrates a skate blade 310 having a first set 316 of securing tabs and a second set 318 of securing tabs. As illustrated, each of the sets 316 and 318 has two securing tabs, each of a different length. Such an embodiment advantageously provides for the use of less material to form the skate blade 310 and allows for the securing tabs to be arranged closer together.
  • FIG. 3C illustrates a skate blade 320 having a first set 326 and a second set 328 of securing tabs.
  • each of the sets 326 and 328 includes two securing tabs that are generally elongated and rectangular.
  • Such an embodiment advantageously provides for a simplified manufacturing process of the securing tabs of the skate blade 320.
  • the rectangular shape of the securing tabs allows for a more efficient use of the material forming the skate blade 320.
  • FIG 3D illustrates a skate blade 330 having a first securing tab 336 and a second securing tab 338.
  • the securing tabs 336 and 338 are generally larger than the securing tabs shown in Figures 3A-3C .
  • each of the tabs 336 and 338 includes multiple fixation holes toward the top edges of the securing tabs.
  • Figure 3E illustrates a skate blade 340 having a single securing tab 346.
  • the securing tab 346 includes multiple fixation holes extending therethrough.
  • the single securing tab 346 allows for the bending of a single tab in order to secure the skate blade 340 to the bottom of a boot.
  • Figure 3F illustrates a skate blade 350 including a first securing tab 356 and a second securing tab 358.
  • the first securing tab 356 includes a neck portion 360 and a terminal portion 362 usable for attaching the skate blade 350 to the bottom of a boot.
  • the second securing tab 358 includes a neck portion 364 and a terminal portion 366 usable to secure the skate blade 350 to the bottom of the boot.
  • the first securing tab 356 may be used to secure the skate blade 350 to the toe portion of the boot
  • the second securing tab 358 may be used to secure the skate blade 350 to the heel portion of the boot.
  • Both of the securing tabs 356 and 358 also include multiple fixation holes usable to accept screws and/or other fixation devices to attach the skate blade 350 to a boot.
  • Figure 4 illustrates a perspective view of a skate blade 400 having bent securing tabs configured to attach to a skate boot or other footwear.
  • the skate blade 400 is formed from a single piece of a unitary material, an example of which is described in more detail with respect to Figure 2 .
  • Figure 4 also contains a three orthogonal-axis reference system, made up of axes X, Y and Z, that will be used to explain embodiments of the invention. References to this axis reference system are for illustration purposes only, and a skilled artisan will recognize from the disclosure herein a wide variety of alternative methods for describing the shape and/or design of the skate blade 400.
  • the skate blade 400 includes an elongated portion 402 configured for engagement with ice or a ground surface during use.
  • the elongated portion 402 generally extends in an X direction, within an X-Y plane, between a proximal end 403 (or front) and a distal end 404 (or rear) of the skate blade 400.
  • the elongated portion 402 further includes a blade portion 405 configured to contact the ice or ground surface.
  • the blade portion 405 includes two outside edges and an arcuate hollow in between the two edges, as is well known in the art.
  • the illustrated skate blade 400 further includes two pairs of securing tabs.
  • securing tabs 406a and 406b are located toward the proximal end 403 of the skate blade 400 and generally extend in a Y direction from a top surface 407 of the elongated portion 402.
  • the illustrated skate blade 400 further includes a second set of securing tabs 408a and 408b located toward the distal end 404 of the skate blade 400 and also generally extending in the Y direction from the top surface 407 of the elongated portion 402.
  • each of the securing tabs 406a, 406b, 408a and 408b are bent at approximately a 90-degree angle to facilitate securing the skate blade 400 to the bottom of a boot.
  • the elongated portion 402 and bottom sections of the securing tabs 406a, 406b, 408a and 408b generally occupy the X-Y plane.
  • Top sections of the securing tabs 406a, 406b, 408a and 408b generally occupy an X-Z plane and are substantially perpendicular to the bottom sections and the elongated portion 402.
  • the illustrated securing tabs 406a and 408a are bent such that the top sections of the securing tabs 406a and 408a extend toward a first side of the skate blade 400 (e.g., in a -Z direction).
  • the top sections of the securing tabs 406b and 408b extend generally in an opposite direction (e.g., in a Z direction) of the securing tabs 406a and 408a.
  • Such an arrangement facilitates balancing of the boot on the skate blade 400.
  • the securing tabs 406a and 406b are configured to attach at or near a toe portion of a skate boot. For example, screws (not shown) may be inserted through fixation holes 410 to secure the securing tabs 406a and 406b to a leather sole of the skate boot.
  • the securing tabs 408a and 408b are configured to attach at or near a heel portion of a skate boot such that screws may be inserted through fixation holes 412 to secure the securing tabs 408a and 408b to the leather sole of the skate boot.
  • fixation devices may be use in place of, or in combination with, screws to secure the skate blade 400 to a boot.
  • the skate blade 400 may include other features in combination with, or in place of, the above-described features.
  • the skate blade 400 optionally includes a toe pick 414 having a plurality of teeth for facilitating skating maneuvers, such as jumps or spins.
  • the skate blade 400 may include slots or additional devices configured to provide shock absorption during skating.
  • at least one of the securing tabs 406a, 406b, 408a and 408b may be configured for attachment to a metal plate or other surface positioned between the skate blade 400 and the bottom of the boot.
  • the skate blade 400 may include more or fewer securing tabs, and/or may include at least one securing tab having a different shape, than the securing tabs 406a, 406b, 408a and 408b depicted in Figure 4 .
  • the skate blade 400 may include any of the forms or number of securing tabs depicted in Figures 3A-3F .
  • the securing tabs of the skate blade 400 may be bent or formed at angles other than approximately 90 degrees.
  • Figures 5A-5E illustrate various examples of securing tabs and bends thereof for attaching the securing tabs to the bottom of a skate boot.
  • FIG. 5A illustrates a cross-sectional view of a skate blade 500.
  • the skate blade 500 includes an elongated portion 502, a securing tab 506, and a securing tab 508.
  • the elongated portion 502 also includes a bottom portion 509 that is configured for engagement with an ice surface.
  • the illustrated securing tab 506 has two substantial bends.
  • the first bend, where the securing tab 506 extends from the elongated portion 502, has an angle ⁇ .
  • the angle ⁇ is an obtuse angle and, in certain embodiments, has a value of approximately 135 degrees.
  • the second bend of the securing tab 506 has an angle ⁇ .
  • the angle ⁇ is an acute angle and, in certain embodiments, has a value of approximately 45 degrees.
  • the illustrated securing tab 508 is bent similarly to the securing tab 506 but in the opposite direction.
  • the section of the securing tab 506 between the first and second bends has a hole extending through it to permit a fastening tool, such as, for example, a screwdriver, to be adjust a fastening device (e.g., a screw) for fixing the securing tab, and hence the blade 500, to the boot.
  • a fastening tool such as, for example, a screwdriver
  • a fastening device e.g., a screw
  • Figure 5B illustrates a cross-sectional view of a skate blade 510 according to another embodiment of the invention.
  • the skate blade 510 includes a single securing tab 516, which is bent similarly to the securing tab 506 shown in Figure 5A . That is, the securing tab 516 has a first bend (angle ⁇ ) of approximately 135 degrees and a second bend (angle ⁇ ) of approximately 45 degrees.
  • the skate blade 510 is configured to have only a single securing tab.
  • the securing tab 516 is preferably of a sufficient length and/or width to support the weight of a user.
  • Figure 5C illustrates a cross-sectional view of a skate blade 520 according to another embodiment of the invention.
  • the skate blade 520 includes a securing tab 526 extending from an elongated portion 522.
  • the securing tab 526 is bent at an angle ⁇ from the elongated portion 522.
  • the angle ⁇ is an obtuse angle and, in preferred embodiments, the angle ⁇ advantageously has a value of approximately 135 degrees.
  • the securing tab 526 further comprises two additional bends at angles ⁇ a and ⁇ b , wherein ⁇ a is an acute angle and ⁇ b is an obtuse angle.
  • the sum of the angles of ⁇ a and ⁇ b is approximately 90 degrees more than angle ⁇ .
  • a skilled artisan will also recognize from the disclosure herein other ranges of angles for ⁇ and/or ⁇ a and/or ⁇ b usable with the skate blade 520 for arranging the securing tab 526 to attach to a boot.
  • FIG. 5D illustrates a cross-sectional view of a skate blade 530 according to an embodiment of the invention.
  • the skate blade 530 includes an elongated portion 532, a securing tab 536 and a securing tab 538.
  • the securing tabs 536 and 538 have a generally arcuate shape such that end portions of the securing tabs 536 and 538 are in a plane approximately perpendicular to the plane comprising the elongated portion 532.
  • the securing tabs 536 and 538 may provide for increased cushioning in comparison with skate blades having securing tabs with only a 90-degree bend.
  • FIG. 5E illustrates a cross-sectional view of a skate blade 540 according to an embodiment of the invention.
  • the skate blade 540 includes an elongated portion 542, a securing tab 546 and a securing tab 548.
  • the securing tab 546 includes a first bend having an angle ⁇ a at the connection of the securing tab 546 to the elongated portion 542.
  • angle ⁇ a is an obtuse angle and, in certain embodiments, has a value of approximately 135 degrees.
  • the securing tab 546 also includes a second bend having an angle ⁇ b .
  • angle ⁇ b is also an obtuse angle and, in certain embodiments, has a value of approximately 135 degrees.
  • the sum of the angles ⁇ a and ⁇ b is approximately 270 degrees such that the end portion of the securing tab 546 is in a plane substantially perpendicular to the plane comprising the elongated portion 542.
  • any of the securing tabs illustrated in Figures 5A-5E may be bent in a variety of ways and/or at a variety of angles such that at least a portion of the securing tab is in a plane substantially perpendicular to the plane including the associated elongated portion.
  • the lengths of the securing tabs may vary to fit certain users or particular sizes and/or shapes of skate boots.
  • the thickness of the securing tabs in either or both of the two dimensions may be altered to increase or relax stiffness or cushioning between the boot and the ice-engaging blade.
  • Figure 6 illustrates a side view of another embodiment of a skate blade made from a unitary piece of material.
  • the skate blade 600 includes an elongated portion 602 configured to engage the ground surface or ice during use.
  • the elongated portion 602 generally extends between a proximal end 603 and a distal end 604 of the skate blade 600.
  • the skate blade 600 further comprises a first set 606 of securing tabs and a second set 608 of securing tabs that generally extend from a top edge of the elongated portion 602.
  • Each of the securing tabs of the sets 606 and 608 also includes a fixation hole 610.
  • the skate blade 600 further includes a first shock absorption slot 620 near the proximal end 603 and a second shock absorption slot 622 near the distal end 604.
  • each shock absorption slot 620, 622 is formed by excising one or more portions of the blade 600.
  • One or more of the shock absorption slots advantageously provides for more cushioning to the skater while using the skate blade 600.
  • the shock absorption slots 620 and 622 also decrease the weight of the skate blade 600.
  • the shock absorption slots 620 and 622 do not require extra material or devices to provide for cushioning.
  • the skate blade 600 may comprise any material, such as a metal, suitable for skate blades.
  • the skate blade 600 comprises a titanium material, and in particular, ASTM-F136 titanium.
  • Figure 7A illustrates an embodiment of a blade fixation assembly for securing a skate blade to the bottom of a boot and/or a boot plate.
  • Figure 7A illustrates a partial perspective view of a skate blade 700 having a bent securing tab 706.
  • the securing tab 706 further includes a grooved fixation hole 710 extending through a terminal portion of the securing tab 706.
  • a locking screw 714 (or fixation screw) is used to affix the securing tab 710 to a boot 715 by extending through the fixation hole 710 into the bottom of the boot 715.
  • the locking screw 714 may be configured to engage a leather sole of the boot 715.
  • the locking screw 712 includes a threaded head 714 and a threaded body 716.
  • the threads of the locking screw 712 advantageously engage grooves of both the securing tab 706 and the hole of the boot 715 when used to secure the blade 700 to the boot 715.
  • the threads of the head 714 are of a different pitch than the threads of the body 716.
  • the threads of the head 714 have less space therebetween (i.e., tighter pitch) than the threads of the body 716.
  • the two threaded portions of the locking screw 712 provide for a more secure attachment between the skate blade 700 and the boot 715. Such stability is due, in part, to portions of the locking screw 712 engaging both the securing tab 706 and the boot 715.
  • the locking screw 712 advantageously comprises a titanium material.
  • the locking screw 712 may comprise stainless steel or another like metal, wood, ceramic, alloys, combinations of the same or the like.
  • FIG. 7B illustrates a cross-sectional view of a blade 700 affixed to the bottom of the boot 715.
  • the skate blade 700 includes an elongated portion 702 and securing tabs 706 and 708.
  • the securing tabs 706 and 708 are affixed to the bottom of the boot 715 through the use of multiple locking screws 712.
  • each of the locking screws 712 has a threaded head 714 that engages the grooves of the securing tabs 706 and 708.
  • the grooves of the securing tabs 706, 708 may comprise a spiral thread matching the pitch of the threaded head 714.
  • each locking screw 712 comprises a threaded body 716 that engages grooves in holes in the bottom of the skate boot 715.
  • the securing tabs 706 and 708 of the skate blade 700 are not substantially flush with the bottom of the skate boot 715. Rather, a gap 724 exists between the skate blade 700 and the boot 715. Because the threads of the locking screw 712 engage both the grooves of the securing tabs 706 and 708 and grooves of the holes in the skate boot 715, the skate blade 700 need not be substantially flush with the bottom of the boot 715. That is, such locking screws 712 need not rely solely upon compression between the skate blade 700 and the boot 715 to withstand lateral forces experienced by the blade 700 and/or boot 715.
  • the gap 724 allows for more stability between the blade 700 and the boot 715, such as when the bottom of the boot 715 is not a planar surface.
  • the securing tabs 706 and 708 may contact at least a portion of the boot 715, and the gap 724 may be reduced or substantially eliminated.
  • the use of multiple locking screws 712 provides for increased stability between the skate blade 700 and the boot 715.
  • the multiple locking screws 712 jointly counteract the lateral force to decrease movement between the skate blade 700 and the boot 715.
  • Such reduction in play between the skate blade 700 and the boot 715 advantageously preserves the life of the skate blade 700 and/or the boot 715.
  • the skate blade 700 may be less susceptible to warping, and/or the skate boot 715 may be less susceptible to deterioration of the leather (e.g., such as may be caused by movement of the blade 700 when affixed with conventional screws).
  • FIG 7C illustrates further details of the locking screw 712.
  • the locking screw 712 includes the threaded head 714 and the threaded body 716.
  • the threaded head 714 includes multiple threads 730
  • the threaded body 716 includes multiple threads 732.
  • the space between each of the head threads 730 is less (tighter pitch) than the space between the body threads 732.
  • the body threads 732 may have less space (tighter pitch) therebetween than the head threads 730.
  • the locking screw 712 may include a head having a conical, cylindrical, tapered, or customized shape.
  • the locking screw 712 may include a shallower thread profile than what is depicted in Figures 7A-7C .
  • the locking screw 712 has a length between about 1 centimeter to about 3 centimeters.
  • the length of a locking screw used to fasten a skate blade to the front (toe) portion of a boot may be of a shorter length than a locking screw used to fasten the skate blade to the back (heel) portion of the boot.
  • the securing tab 706 may include multiple holes therethrough for affixing the skate blade 700 to the boot 715.
  • the securing tab 706 may include at least one non-grooved hole for a standard screw, bolt, rivet, bracket, clip or other attachment device and at least one grooved hole to receive the locking screw 712.
  • Such embodiments allow for the option of securing the skate blade 700 with one or more types of securing devices.
  • Figure 8 illustrates a side view of another embodiment of a skate blade 800 having a securing tab 806.
  • the illustrated securing tab 806 includes a fixation hole 810, such as those described above with respect to Figures 2 and 7 .
  • the illustrated securing tab 806 further includes a provisional hole 840 usable, for example, to temporarily affix the securing tab 806 to the underside of a boot.
  • the provisional hole 840 has a smaller circumference than the fixation hole 810.
  • the provisional hole 840 may be used to temporarily affix the skate blade 800 to a boot when the skate blade 800 is being fitted or adjusted.
  • the provisional hole 840 is advantageously of a smaller diameter to allow for the use of smaller securing mechanisms, such as, for example, pins or small screws, that can be inserted through the provisional hole 840 and into the bottom of a boot without requiring substantial alterations or holes in the boot.
  • the securing tab 806 may include multiple provisional holes 840. Using the provisional holes 840 may advantageously avoid disruption of the integrity of the boot bottom in areas that receive the more permanent fixation device, such as the locking screws 712 illustrated in Figures 7A-7C .
  • the skate blade 800 may function without provisional holes.
  • a user may insert temporary fixation devices through the fixation hole 810 when fitting or adjusting the skate.
  • FIG. 9 illustrates a side view of a skate blade 900 according to an embodiment of the invention.
  • the skate blade 900 includes an elongated portion 902 from which extend a first set 906 of securing tabs and a second set 908 of securing tabs usable to affix the skate blade 900 to the bottom of a boot.
  • each of the securing tabs includes a fixation hole 910 and a provisional hole 940.
  • the skate blade 900 differs from the skate blades 200, 400 and 600 in Figures 2 , 4 and 6 , respectively, in that the first set 906 of securing tabs extends from a first common neck portion 907, and the second set 908 of securing tabs extends from a second common neck portion 909. As shown, each of the first neck portion 907 and the second neck portion 909 extends from a top edge of the elongated portion 902.
  • the illustrated skate blade 900 also includes a toe pick 914, a first shock absorption slot 920 and a second shock absorption slot 922. Furthermore, the skate blade 900 includes an opening 942 positioned within the first neck portion 907 that advantageously provides for a reduction in the weight and/or air resistance of the skate blade 900.
  • the skate blade may be made of a synthetic non-metallic material or a thermoplastic material, such as, for example, nylon or polyurethane, a hydrophobic material such as an ultra high molecular weight polyethylene (UHMW PE), a fluoropolymer, a silicone material, combinations of the same or the like.
  • a synthetic non-metallic material or a thermoplastic material such as, for example, nylon or polyurethane
  • a hydrophobic material such as an ultra high molecular weight polyethylene (UHMW PE)
  • UHMW PE ultra high molecular weight polyethylene
  • the skate blade may comprise a composite material such as a resin or epoxy material including glass, aramide, carbon, boron, or stainless steel fibers, a thermoplastic metal matrix material, a ceramic material, combinations of the same or the like.
  • the skate blade may also include one or more filler materials such as carbon black, graphite, glass fiber, aramide fiber, carbon fiber, boron fiber, stainless steel fiber, microspheres, fluorinated fillers such as fluorinated graphite, silicone, diamond, metal fillers such as titanium carbide or tungsten carbide, titanium coated graphite, diamond films, aluminum-based ceramics, non-oxide ceramics, ceramic, fiber reinforced material, combinations of the same or the like.
  • embodiments of the present invention find utility in various types of skates, of which figure skates, roller skates and speed skates are three examples. Since the skating characteristic requirements for these various type skates may vary, the precise material and/or configuration for a given type of skate, or for an individual skater who will use the given type of skate, may also vary.

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  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (19)

  1. Lame de patin (200 ; 400 ; 600 ; 900) comportant :
    une partie allongée (202 ; 402 ; 602 ; 902) occupant un premier plan et ayant une extrémité distale (404 ; 604),
    une extrémité proximale (403 ; 603), une partie supérieure (407) et un bord inférieur (405) configurés pour être mis en prise avec une surface de patinage pendant l'utilisation; et
    une pluralité de pattes (204, 206, 208 ; 406a, b, 408a, b ; 606, 608 ; 906, 908) s'étendant depuis la partie supérieure (407) de la partie allongée (202 ; 402 ; 602 ; 902), chaque patte parmi la pluralité de pattes étant configurée pour plier suivant une ligne de pliage (212) sensiblement parallèle au premier plan de sorte qu'une section supérieure de chaque patte parmi la pluralité de pattes occupe un second plan sensiblement perpendiculaire au premier plan, et dans laquelle chacune des sections supérieures parmi la pluralité de pattes comporte au moins un trou (210 ; 410, 412 ; 610 ; 910) s'étendant à travers elles et utilisable pour fixer la patte à une chaussure de patin lorsque les sections supérieures sont dans les positions pliées,
    et dans laquelle la partie allongée (202 ; 402 ; 602 ; 902) et la pluralité de pattes (204, 206, 208 ; 406a, b, 408a, b ; 606, 608 ; 906, 908) sont formées à partir d'une pièce unique constituée d'un matériau unitaire et ont sensiblement la même épaisseur.
  2. Lame de patin selon la revendication 1, dans laquelle chaque patte parmi la pluralité de pattes (204, 206, 208 ; 406a, b, 408a, b ; 606, 608 ; 906, 908) comporte une section inférieure s'étendant depuis la partie supérieure (407) de la partie allongée (202 ; 402 ; 602 ; 902) et occupant le premier plan.
  3. Lame de patin selon la revendication 1, dans laquelle la ligne de pliage (212) occupe le premier plan.
  4. Lame de patin selon la revendication 1, dans laquelle l'extrémité distale (604) de la partie allongée (602) comporte une entaille allongée (620).
  5. Lame de patin selon la revendication 4, dans laquelle l'extrémité proximale (403) de la partie allongée (402 ; 902) comporte une dent (414 ; 914).
  6. Lame de patin selon la revendication 1, dans laquelle au moins un trou (210 ; 410, 412 ; 610 ; 910) d'au moins une patte (204, 206, 208 ; 406a, b, 408a, b ; 606, 608 ; 906, 908) comporte une paroi rainurée pour la mise en prise avec une partie filetée d'une vis de verrouillage (712).
  7. Lame de patin selon la revendication 1, dans laquelle une circonférence d'au moins un trou (210 ; 410, 412 ; 610 ; 910) est sensiblement circulaire.
  8. Lame de patin selon la revendication 1, dans laquelle le au moins un trou d'au moins une patte (906 ; 908) comporte en outre :
    un premier trou (910) pour fixer la lame de patin à une chaussure de patin ; et
    un second trou (940) pour fixer temporairement la lame de patin à la chaussure de patin.
  9. Lame de patin selon la revendication 1, dans laquelle au moins deux pattes parmi la pluralité de pattes (606) sont positionnées en direction d'une partie centrale de la partie allongée (602) et au moins deux autres pattes parmi la pluralité de pattes (608) sont positionnées en direction de l'extrémité distale (604) de la partie allongée (602).
  10. Lame de patin selon la revendication 1, dans laquelle le matériau unitaire comporte un matériau en titane.
  11. Lame de patin selon la revendication 10, dans laquelle le matériau en titane comporte Ti6Al4V (titane ASTM-F136).
  12. Procédé de fabrication d'une lame de patin (200 ; 400 ; 600 ; 900), le procédé comportant les étapes consistant à : fournir un élément de type feuille, plat occupant un plan X-Y et ayant une première épaisseur ;
    mettre en forme l'élément de type feuille afin de former : une partie de lame allongée (202 ; 402 ; 602 ; 902) qui s'étend généralement dans une direction X dans le plan X-Y ;
    une première patte (204 ; 406a ; 606 ; 906) s'étendant depuis une partie supérieure (407) de la partie de lame allongée et comportant sensiblement la même épaisseur que l'élément de type feuille, et
    plier la première patte au niveau d'une première ligne de pliage (212) s'étendant sensiblement dans la direction X de sorte qu'au moins une partie de la première patte occupe généralement un plan X-Z.
  13. Procédé selon la revendication 12, comportant en outre la mise en forme d'une extrémité (604) de ladite partie de lame allongée (602) afin de former une encoche allongée (620) dans la partie de lame allongée.
  14. Procédé selon la revendication 12, comportant en outre la mise en forme de l'élément de type feuille afin de former une deuxième patte (206 ; 406b ; 608 ; 908) s'étendant depuis la partie supérieure de la partie de lame allongée (202 ; 402 ; 602 ; 902), dans laquelle la seconde patte comporte sensiblement la même épaisseur que l'élément de type feuille.
  15. Procédé selon la revendication 14, comportant en outre le pliage de la deuxième patte sensiblement au niveau d'une seconde ligne de pliage s'étendant sensiblement dans la direction X, de sorte qu'au moins une partie de la deuxième patte occupe sensiblement le plan X-Z.
  16. Procédé selon la revendication 15, dans lequel le pliage des première et deuxième pattes (406a, b) comporte le pliage d'au moins une partie de la première patte (406a) sur un côté de la partie de lame allongée et le pliage d'au moins une partie de la deuxième patte (406b) sur un côté opposé de la partie de lame allongée.
  17. Procédé selon la revendication 16, comportant en outre la formation d'un premier trou (210 ; 410 ; 610 ; 910) dans la première patte.
  18. Procédé selon la revendication 17, dans lequel ladite formation comporte l'étape consistant à former le premier trou avec une rainure spirale.
  19. Procédé selon la revendication 17, comportant en outre l'étape consistant à former un second trou (840 ; 940) ayant un diamètre sensiblement plus petit que le premier trou.
EP05790959A 2005-08-18 2005-08-18 Lames de patin et procédés et appareil de fixation Not-in-force EP1924333B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/029470 WO2007021283A1 (fr) 2005-08-18 2005-08-18 Lames de patin et procédés et appareil de fixation

Publications (2)

Publication Number Publication Date
EP1924333A1 EP1924333A1 (fr) 2008-05-28
EP1924333B1 true EP1924333B1 (fr) 2010-10-13

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EP05790959A Not-in-force EP1924333B1 (fr) 2005-08-18 2005-08-18 Lames de patin et procédés et appareil de fixation

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US (1) US20090206562A1 (fr)
EP (1) EP1924333B1 (fr)
AT (1) ATE484324T1 (fr)
CA (1) CA2619788A1 (fr)
DE (1) DE602005024189D1 (fr)
WO (1) WO2007021283A1 (fr)

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RU2715298C1 (ru) * 2019-06-19 2020-02-26 Волегова Александра Александровна Лезвие конькобежного конька и устройство для заточки лезвия конькобежного конька
US11878386B2 (en) 2019-09-11 2024-01-23 Prosharp Inc. Automatic blade holder
US11806826B2 (en) 2019-09-11 2023-11-07 Prosharp Inc. Automatic blade holder
JP7542848B2 (ja) 2020-06-22 2024-09-02 新潟精密鋳造 株式会社 アイススケート靴用ブレード

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Also Published As

Publication number Publication date
DE602005024189D1 (de) 2010-11-25
CA2619788A1 (fr) 2007-02-22
US20090206562A1 (en) 2009-08-20
ATE484324T1 (de) 2010-10-15
EP1924333A1 (fr) 2008-05-28
WO2007021283A1 (fr) 2007-02-22

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