WO2021022099A1 - Lame de patin à glace à courbure variable pré-appliquée, rigidité variable, et système de montage sur chaussure modulaire - Google Patents

Lame de patin à glace à courbure variable pré-appliquée, rigidité variable, et système de montage sur chaussure modulaire Download PDF

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Publication number
WO2021022099A1
WO2021022099A1 PCT/US2020/044361 US2020044361W WO2021022099A1 WO 2021022099 A1 WO2021022099 A1 WO 2021022099A1 US 2020044361 W US2020044361 W US 2020044361W WO 2021022099 A1 WO2021022099 A1 WO 2021022099A1
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WO
WIPO (PCT)
Prior art keywords
blade
boot
runner
skate
tube
Prior art date
Application number
PCT/US2020/044361
Other languages
English (en)
Inventor
Thomas DI NARDO
Donald Roberts
Paul Marchese
Ren FISHER
Original Assignee
Mayflower Industries, Llc
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
Application filed by Mayflower Industries, Llc filed Critical Mayflower Industries, Llc
Priority to KR1020227006201A priority Critical patent/KR20230038132A/ko
Priority to EP20848446.9A priority patent/EP4003551A4/fr
Priority to CN202080069000.0A priority patent/CN114828967A/zh
Priority to US17/631,872 priority patent/US20220280862A1/en
Publication of WO2021022099A1 publication Critical patent/WO2021022099A1/fr

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Classifications

    • 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
    • A63C1/38—Skates of the tubular type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C1/00—Skates
    • A63C1/04—Skates fastened by means of clamps
    • A63C1/06—Skates fastened by means of clamps with sole and heel plates each equipped with clamps
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C1/00—Skates
    • A63C1/22—Skates with special foot-plates of the boot
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C1/00—Skates
    • A63C1/42—Manufacture of skates
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/42—Details of chassis of ice or roller skates, of decks of skateboards

Definitions

  • the invention discussed herein relates to the general field of ice-skating accessories and describes a skate blade with pre-applied variable curvature, variable stiffness, and modular boot mounting system.
  • Speed skating blades are generally manufactured with an aluminum or steel longitudinal tubular structure, into which a steel blade is mounted on one side of the tube, and aluminum mounting“cups” or“arms” are attached to the opposite side of the tube to allow for the mounting and adjustment of a boot.
  • There are two general types of speed skating blades one being designated for short track skating on a 111 m skating track, and the other for long track skating on a 400m skating track.
  • the short track blades are designed to be mounted in a fixed position at the forefoot and heel of the boot as shown in Fig. 1 .
  • the mounts used on short track blades may be changed for different heights to increase or decrease the distance between the boot and the blade depending on the preference of the skater.
  • the most popular long track blades are designed to be mounted in a fixed position in the forefoot of the blade on a hinged arm (34) that is not fixed to the heel of the boot as shown in Fig. 2A, commonly referred to as a“clap skate” named after the clapping sound that occurs when the hinge closes while skating.
  • Fig. 2B illustrates the movement of the clap arm. This design allows for longer contact with the ice and more speed to be generated by the skater.
  • the hinged clap arm design on the long track skate is not allowed to be used on a short track skate under regulation by the International Skating Union, the governing body for the sport.
  • the steel blade is mounted inside a machined slot using adhesive that remains somewhat elastic once cured.
  • the steel runner of the blade is normally mounted inside the tube using a welding, brazing, or soldering process. Adhesives are not currently used in the context of a steel runner and tube assembly.
  • skate boots and blades are typically configured to take advantage of the counterclockwise turns. Blades are mounted on boots with an offset to the left, and some blades are positioned to the left in their support structure.
  • the blade runner surface is also generally adjusted with a radius or“rocker” that complements the dimensions of the skating rink and the experience level of the skater.
  • the radius applied to a beginning skater is normally a single radius, whereas expert level skaters might use a complex curve made of multiple radii varying over the length of the blade surface, also referred to as a compound radius.
  • the chosen rocker is more curved at the heel and toe areas of the blade, and flatter toward the center of the blade.
  • the center section of the blade tends to be more curved than the turn radius of the racing course.
  • the rocker provided by manufacturers is a single general radius approximating 9 meters for short track blades and 23 meters for long track blades. The skater or technician must then manually adjust the rocker to the skaters desired specification using a radiusing machine with an appropriate template or using a manual hand lapping process with honing stones and a gauge to validate the changes.
  • the blades can be also bent to the left to take advantage of skating only in a counterclockwise direction.
  • the bend applied to the blades can be varied according to the various radii to increase the contact area of the blade with the surface of the ice, thereby increasing grip as well as allowing the skater to turn more sharply as they apply pressure to that section of the blade.
  • the technician must bend the tube far beyond the desired shape in order to enact plastic deformation, and have it return to the desired shape when relaxed.
  • This extensive overbending significantly increases the fatigue impact on the tube.
  • the overbending also results in fatigue sheer stress on the glue bond because of the surface sheer created by the changing radii of the four vertical surfaces when the bending operation is performed. This stress on the glue bond surfaces can, and does, result in catastrophic blade delamination which can result failure of the assembly and potentially in injury to the athlete.
  • some manufacturers pin" the runner into the tube using mechanical rivets.
  • This pinning process results in further problems because it locks the tube and runner in a static location.
  • mechanical bending processes are implemented on a pinned blade assembly, the contact surfaces of the steel runner and the slot in the aluminum tube are prevented from moving along their contact planes. This results in waves in the locations where the pins are installed, and the pin makes it impossible for the tube and runner to move at all, so bending becomes even more difficult resulting in more bending operations being required, resulting in more fatigue and reduces life of the blade assembly.
  • the waves created by the mechanical pins result in performance degradation of the assembly.
  • the present invention proposes to address this vibration issue by introducing vibration reducing systems like fluid dampers, elastomeric vibration isolators, or tuned mass damper systems to the hollow portion of the tube.
  • vibration reducing systems like fluid dampers, elastomeric vibration isolators, or tuned mass damper systems
  • different compounds, or combinations thereof may be required.
  • viscous fluids are used, the addition of a hollow foam core may be necessary to counter the effects of fluid movement within the tube.
  • foam may be sufficient to address vibratory concerns.
  • Compounds that are used in this application must be thermally dimensionally stable to prevent unintended increases in stiffness as well as hydraulic pressure failure of the tube assembly due to the severe temperature ranges that ice skate blades must endure.
  • the performance impact of this harmonic resonance is equivalent to the operation of an impact drill being used to drill into concrete.
  • boot mounting system design An additional problem with all skate blade prior art is the boot mounting system design.
  • the mounting system is generally referred to as a“cup”.
  • the mounting system is generally referred to as a “bridge”. These components are integral parts of the complete assembly.
  • the current generation of short track blades are all based on the original design conceived by Johan Bennink, the founder of Maple Skate B.V. in 1992.
  • This design is generally constructed using a machined aluminum extrusion or block of aluminum billet, though other materials such as titanium can be used, and other methods of manufacturing such as forging can be used, to create a uniform mounting structure to connect the boot to the blade tube.
  • clap skate Long track speedskating’s blade mounting system, referred to as a clap skate, is quite different from short track’s cup system. Unlike in traditional skates where the blade is rigidly fixed to the boot and blade, clap skates have the blade attached to the boot by a hinge mechanism at the front. This allows the blade to remain in contact with the ice longer, as the ankle can now be extended toward the end of the stroke, as well as for more natural movement, thereby distributing the energy of the leg more effectively and efficiently. This clap design is permitted only in long track speed skating. It has been banned from short track speed skating due to safety concerns.
  • the bridge mounting of the long track skates allows the attachment of the boot at the forefoot and heal of the boot to a beam that is normally constructed of aluminum and fashioned to attach in a hinge fixture at the front third of the blade tube.
  • the bridge incorporates springs which cause the blade to return to its starting location aligned with the bridge.
  • the entire assembly is referred to as a“clap” mechanism, aptly named because to the clapping sound that is made when the blade returns to rest against the bridge.
  • FIG. 5a for a cross section of the boot mount design in use within the industry showing occlusions in the retention material. See FIG. 5b for a detail view of the occlusion.
  • the current design makes it difficult for the worker completing the assembly to properly secure the mounting block resulting in a mounting system that is prone to failure under high torsional load.
  • a skate blade having a generally elongated configuration, is defined as a blade runner which provides a contacting section for contacting a gliding surface such as ice, and a blade attachment section for attaching the blade to a skate boot, inclusive of the boot mount features that affix to the blade attachment assembly.
  • the skate blade also defines a blade longitudinal axis, a blade first side surface, and a blade second side surface.
  • the blade with pre-applied bend is comprised of: a tube with mounting flange with the desired bend profile and variable stiffness profile applied during the fabrication process and a matching slot installed in the vertical orientation, a blade runner with retention features, and a modular mounting system with alignment and retention features for installing the assembly onto a skating boot with anti-pullout and alignment features.
  • machining the blade runner mounting flange to the desired bend profile during the manufacturing process ensures that the lengths of each contacting side are correct prior to assembly so there is no need to mechanically apply significant additional bend which will weaken or damage the assembly; and machining a consistent flange thickness on the concave flange surface and a
  • variable stiffness profile along the convex flange surface ensures that the appropriate stiffness level is introduced in the correct locations along the length of the flange ensuring the expected performance of the assembly is achieved.
  • this retention feature is the use of round holes, other methods can be used, such as grooves, divots, etc. Further, these changes also reduce or eliminate the propensity of blade runners affixed with adhesive from delaminating because of manual bending operations thereby eliminating the need for supplemental retention methods and their resultant decrease in performance of the assembly.
  • An additional feature of the present invention is the elimination of the requirement for deburring the skate blade during routine sharpening maintenance through the application of a Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD) surface coating.
  • PVD Physical Vapor Deposition
  • CVD Chemical Vapor Deposition
  • boot mounting and alignment features of the invention allow for the installation of boots with improperly installed mounts to self-align for proper contact of all mounting surfaces without imparting torsional loads to the assembly.
  • the use of the optional proposed anti-pull-out boot mounts and the alignment system together allows the skater or technician to ensure that any changes that occur as a result of impact damage or loosened fasteners can be quickly identified and corrected.
  • the alignment features allow for set up of new equipment to be quickly and easily reproduced, as well as being quick to change and highly repeatable
  • Figure 1 is a side elevation of a short track speed skate.
  • Figure 2A is a side elevation of a long track speed skate illustrating the hinged“clap arm” mechanism which is affixed to the forefoot area of the boot.
  • Figure 2B is a side elevation of a long track speed skate illustrating the movement of the hinged“clap arm” mechanism.
  • Figure 3 is a perspective view of a Maple PB Mounting Cup with alignment marks (Prior Art).
  • Figure 4 is a side elevation of a boot with incorrectly installed boot mounts misaligned showing misaligned surface contact on mounting cups.
  • Figure 5a is a cross-section view of an industry standard boot mount installed in a boot showing occlusions in the retention feature of the boot mount.
  • Figure 5b is a detail view of figure 5a showing occlusions in the retention feature of the boot mount.
  • Figure 6 is a left elevation of a fully assembled short track skate blade in accordance with an embodiment of the invention.
  • Figure 7 is a right elevation view of a fully assembled short track skate blade in accordance with an embodiment of the invention.
  • Figure 8 is a perspective view of the front of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 9 is an exploded front perspective view of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 10 is a front elevation of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 11 is a rear elevation of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 12 is a rear-perspective view of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 13 is a top plan view of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 14 is a bottom plan view of a fully assembled short track skate blade assembly in accordance with an embodiment of the invention.
  • Figure 15 is a partial perspective cross-sectional view illustrating a skate blade runner slot with consistent flange, variable stiffness flange, and adhesive shown throughout the FIGS.
  • Figure 16 is a partial front elevation illustrating a skate blade runner slot with consistent flange, variable stiffness flange, and adhesive shown throughout the FIGS in accordance with an embodiment of the invention.
  • Figure 17 is a perspective view of the front of a skate blade runner slot with consistent flange, variable stiffness flange, and adhesive in accordance with an embodiment of the invention.
  • Figure 18 is a perspective view of the side of a skate blade runner with glue rivet retention holes in accordance with an embodiment of the invention.
  • Figure 19 is an alternate perspective view of the side of a skate blade runner with glue rivet retention groves in accordance with an embodiment of the invention.
  • Figure 20a is an alternate perspective view of the side of a skate blade runner with glue rivet retention divots in accordance with an embodiment of the invention.
  • Figure 20b is a detail perspective view of the side of a skate blade runner with glue rivet retention divots in accordance with an embodiment of the invention.
  • Figure 21 is a front view of the front of a skate blade runner slot showing the adhesive pooling feature and adhesive in accordance with an embodiment of the invention in accordance with an embodiment of the invention.
  • Figure 22 is a detail perspective view of the dampening system ports with bung plug in accordance with an embodiment of the invention.
  • Figure 23 is a perspective view of the front of an embodiment of the long track bridge feature with adjustable/replicable boot mounting system in accordance with an embodiment of the invention.
  • Figure 24 is a perspective view of the anti-pullout boot mount component of the mounting assembly in accordance with an embodiment of the invention.
  • Figure 25 is an exploded perspective view of a graduated angle alignment pattern applied to the mounting assembly components in accordance with an embodiment of the invention.
  • Figure 26 is a partial perspective view of the Quick Release Boot Mounting Cup.
  • Figure 27 is an exploded view of the Quick Release Boot Mounting Cup.
  • Figure 28 is a partial perspective view of the Quick Release Boot Mounting Cup mounted to the Anti-Pull Out Boot Mount.
  • Figure 29 is an exploded view of the Quick Release Boot Mounting Cup mounted to the Anti-Pull Out Boot Mount.
  • Figure 30 is multiple views illustrating different concepts for the Boot Mount Plate, showing the Boot Mount Cup Plate Alignment Marks feature.
  • Figure 31 is a section view illustrating the Quick Release Boot Mounting Cup
  • Figure 32a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 32b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 33a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 33b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 34a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 34b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 35a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 35b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 36a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 36b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 37a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 37b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 38a is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • Figure 38b is multiple views depicting a different potential geometry for retention on the Quick Release Plate.
  • FIGS. 6 and 7 a preferred but exemplary embodiment of an ice skate blade with pre-applied variable curvature and modular boot mounting and alignment system is shown.
  • the depicted skate assembly concepts can be used for either a short track skate blade or a long track skate blade, examples of which are shown in FIGS. 1 and 2A.
  • the skate blades and are generally configured with an elongated rail-type support, which is typically a cylindrical tube shape, commonly referred to as a blade tube, with appendages to facilitate mounting of a blade runner component and mounting points for affixing boots.
  • the blade tube generally has a slot adapted to hold and retain the upper portion of the blade or runner on one side of the blade tube, and mounting platform(s) referred to as“cups” or“arms” attached on the side opposite the slot for attaching the blade assembly to boots.
  • the short track blade and long track blade shown in FIGS. 1 and 2A exemplify one possible embodiment of each type of skate blade bendable with the blade bending apparatus.
  • Various other types of skate blades, including blades of various configurations, may be used without departing from the scope of the present invention.
  • blade attachment sections with and without the associated runner or attachment components installed can also be used without departing from the scope of the present invention.
  • the skate blade assembly is shown in an exploded view in FIG. 9.
  • the Adhesive (6) flows into the Adhesive Retention Feature (4) forming adhesive rivets to help retain the Runner (3) in the Variable Radii Runner Mounting Slot (5).
  • the Boot Mounting Cups (8) are attached with Boot Mount Cup Fasteners (9).
  • the Boot Mounting Cup Plate (10) is attached to the anti-pullout boot mount (13) using Fastener (11 ).
  • the Boot Mounting Cup Plate (10) is attached to the Boot Mounting Cup (8) using Fastener (11 ).
  • the boot position is then adjusted using the Boot Mount Alignment Grid (14) and the Boot Mount Plate Alignment Marks (12).
  • the tube (1 ) of this embodiment be made of aluminum and Computerized Numerical Control machined from an extruded shape of material to minimize waste, but other materials and methods are also suitable including, but not limited, to alloys, plastics, composites such as carbon fiber, etc.
  • the runner (3) be made of steel, but other materials are suitable.
  • mounting cups (8) or alternately long track clap arms, plates (10), and boot mounts (16), and retention gib (11 ) be made of aluminum, but other materials also suitable.
  • fasteners (9, 12, 13, and 14) be made of steel and titanium alloy, but other materials are also suitable.
  • boot mount cup plates (10) can be made of different thicknesses to increase or decrease the effective height of the blade assembly; however, the height increase can also be accomplished by increasing the height of the cup itself while maintaining the thin mounting plate.
  • the adhesive (6) will be a commercially available adhesive appropriate for bonding dissimilar metals.
  • a gluing process like that used with aluminum tubes is possible and may be preferred due to some performance benefits a glued assembly would offer, including but not limited to: impact energy reduction that can reduce blade damage and vibration dampening.
  • the adhesive retention feature will be round holes (4) drilled into the runner (3), but other methods including groves, Divots,
  • the adhesive pooling feature will be an angled chamfer (7) machined into the top edge of both flanges (21 and 22) that form either wall of the mounting slot (5), but other methods including notches, divots, slots, etc. are also suitable to achieve the desired result.
  • variable stiffness flange (21 ) will be CNC machined to specifications, including radius specifications, during the manufacturing process.
  • the variable stiffness flange (21 ) will have a varied thickness as opposed to the constant stiffness flange (22) which is uniform (FIGS. 15-17).
  • this variable stiffness concept can also be applied to the circumference of the tube as well as the top of the tube.
  • the alignment grids and marks on the boot mounting cups/arms (8), plates (10), and mounting blocks (13) will be laser etched into the aluminum surfaces, but these marks can also be included by CNC machining, screen printing, surface labeling, etc., or other suitable means. Further, the graduation marks are specifically for the purpose of making the installation and alignment procedure a repeatable process and they can be designated by letters, numerals, or other symbols as appropriate.
  • skate blade assembly of the various embodiments can be used to provide an assembly that requires minimal set up steps for the end user, such steps are easy to accomplish, easily repeatable, and consistent in their application.
  • the multi-radii pre-curved slot (5) in the tube (1 ) allows for the significant reduction, or elimination, of manual bending operations while yielding the preferred bend for each skater.
  • the multi-radii, or“complex,” pre-installed radius (20) allows for the significant reduction, or elimination, of manual radius/rockering operations.
  • a consumer may purchase a blade and/or tube that is reasonably close to desired specifications. This would result in not only less time and effort to provide final alterations, but also the metal memory of the blade and tube will be closer to the desired specifications than is currently available in the market.
  • the adhesive pooling feature (7) ensures that any excess adhesive that may be applied during the installation of the runner into the tube will flow into the retention area rather than moving up the side of the runner surface, which must subsequently be removed by the skater or technician prior to use.
  • the boot mounting plates (10) allow for easier and faster replacement of broken or damaged blades as well as easier and less expensive adjustment of the height of the assembly to improve cornering clearance of the boot when the skater is leaning in the corner.
  • the tube can have other shapes, such as circular, trapezoidal, triangular, etc.; the mounting
  • cups/arms, plates, and anti-pullout boot mounts can likewise have other shapes, etc.
  • scope of the embodiments should be determined by the appended claims and their legal equivalents, rather than by the examples given.
  • Dampening feature utilizes the tube dampening system fill port (18), to allow the addition of dampening fluid, foam, and/or compounds, into the tube dampening system cavity (18), which are then retaining in the cavity by installation of the tube dampening system plug.
  • the anti -pull out boot mount (16) has an angular shape to prevent the pull out of the mount from the shell of the boot.
  • the runner surface coating (24), is 1 -5 microns thick, provides extremely low friction (0.5-0.6 coefficient of friction), higher hardness than the steel surface to which it is adhered, reduced resistant to sliding wear. Because of the extremely high surface hardness, any burr that occurs during the sharpening and polishing process of the runner surface is easily removed.
  • the present invention may be manufactured and used in industry, with a primary purpose of being used in the ice-skating industry.
  • Other industries may be able to utilize the invention including, but not limited to, skiing, snowboarding, mountaineering, and other sports.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

La présente invention concerne une lame de patin dotée d'un tube (1) présentant une fente arrondie complexe (5) dans laquelle est placé le patin (3), conférant ainsi le rayon complexe au patin (3). L'invention concerne également une structure de montage rapide uniforme, une coupelle de montage (8) fixée au tube (1) étant fixée à une chaussure de patin par interaction entre une flèche de scellement (11) et une plaque de montage (10) qui est située sur la chaussure. Une fixation uniforme et reproductible est ainsi obtenue. D'autres caractéristiques comprennent un amortissement harmonique, des caractéristiques de scellement adhésif et des caractéristiques d'alignement de botte.
PCT/US2020/044361 2019-07-30 2020-07-30 Lame de patin à glace à courbure variable pré-appliquée, rigidité variable, et système de montage sur chaussure modulaire WO2021022099A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020227006201A KR20230038132A (ko) 2019-07-30 2020-07-30 가변 곡률, 가변 강성 및 모듈식 부트 마운팅 시스템이 사전 적용된 아이스 스케이트 블레이드
EP20848446.9A EP4003551A4 (fr) 2019-07-30 2020-07-30 Lame de patin à glace à courbure variable pré-appliquée, rigidité variable, et système de montage sur chaussure modulaire
CN202080069000.0A CN114828967A (zh) 2019-07-30 2020-07-30 具有预应用变曲率变刚度模块化靴部安装系统的冰鞋冰刀
US17/631,872 US20220280862A1 (en) 2019-07-30 2020-07-30 Ice skate blade with pre-applied variable curvature, variable stiffness, and modular boot mounting system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962880203P 2019-07-30 2019-07-30
US62/880,203 2019-07-30

Publications (1)

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WO2021022099A1 true WO2021022099A1 (fr) 2021-02-04

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PCT/US2020/044361 WO2021022099A1 (fr) 2019-07-30 2020-07-30 Lame de patin à glace à courbure variable pré-appliquée, rigidité variable, et système de montage sur chaussure modulaire

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US (1) US20220280862A1 (fr)
EP (1) EP4003551A4 (fr)
KR (1) KR20230038132A (fr)
CN (1) CN114828967A (fr)
WO (1) WO2021022099A1 (fr)

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CN115607940A (zh) * 2022-11-10 2023-01-17 齐齐哈尔黑龙国际冰雪装备有限公司 一种竞技类速滑冰刀

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Title
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EP4003551A1 (fr) 2022-06-01
US20220280862A1 (en) 2022-09-08
KR20230038132A (ko) 2023-03-17
CN114828967A (zh) 2022-07-29
EP4003551A4 (fr) 2024-04-10

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