CA2173001C - Ice skate blade technology - Google Patents
Ice skate blade technologyInfo
- Publication number
- CA2173001C CA2173001C CA 2173001 CA2173001A CA2173001C CA 2173001 C CA2173001 C CA 2173001C CA 2173001 CA2173001 CA 2173001 CA 2173001 A CA2173001 A CA 2173001A CA 2173001 C CA2173001 C CA 2173001C
- Authority
- CA
- Canada
- Prior art keywords
- edge
- blade
- ice skate
- central
- skate blade
- 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.)
- Expired - Fee Related
Links
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
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Carbon And Carbon Compounds (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
Angled edges are disposed in the bottom ice contact surface of ice skate blades located between the two side perimeters. These edges run the full or partial horizontal length and vary in angle size between zero and 180 degrees. The edge(s) can be located at any point along any horizontal, vertical, or sloped axis.
The edge(s) slopes can be of any length and shape. Grooves of any size and shapecan be placed in the slopes. Any number and size of bottom edges can be added toice blades. The blade frame can be increased or decreased in thickness to suit any number and size of edge(s).
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The edge(s) slopes can be of any length and shape. Grooves of any size and shapecan be placed in the slopes. Any number and size of bottom edges can be added toice blades. The blade frame can be increased or decreased in thickness to suit any number and size of edge(s).
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Description
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This invention relates to skate blades. In particular, the invention relates to angled edge(s) of various sizes and shapes which can be added to the contact surface of ice skate blades.
In conventional ice skate blades their bottom contact surface is flat.
The perimeters of their bottom surface is two 90 degree side edges. Skaters glide on the bottom surface and achieve resistance with the side edges against the ice in order to propel themselves. In order to achieve motion the back and legs of the skater must be put in strenuous positions and extensions. The back must be placed too far forward and the legs moved too far laterally which reduces efficiency in achieving motion. This causes excessive strain and stress to be put on the joints and ligaments. Acceleration, cornering, maneuverability, and braking are hampered. The side edge does not provide enough traction from the ice in order for the skater to achieve optimum motion and skating ability.
These disadvantages can be substantially overcome by adding edge(s) with slopes of any shape and size to the bottom location of ice skate blades.
Bottom surface edge(s) allow the bottom of skate blades to largely remain in contact with the ice surface. They thus work in conjunction with any number of other bottom surface edges or the two conventional side edges to increase traction.
Acceleration, cornering, maneuverability, and braking are increased resulting inthe creation of performance ice blades. Centrally located and all other bottom edges can be any angle size between zero and 180 degrees, placed at any point along any horizontal, vertical, or sloped axis located between the side perimeters.
With the bottom surface remaining more in contact with the ice during tl~e skating process greater physical support is provided. This results in the reduction of over extensions and decrease of stress in the back, knees, and ankles, making skating more comfortable and reducing injuries.
A bottom edge which is less in angle size will promote skating and braking in relation to an edge which can be greater in angle size which will promote more gliding. An edge placed on a sloped axis will promote ,, ~ 7~ o a ~
This invention relates to skate blades. In particular, the invention relates to angled edge(s) of various sizes and shapes which can be added to the contact surface of ice skate blades.
In conventional ice skate blades their bottom contact surface is flat.
The perimeters of their bottom surface is two 90 degree side edges. Skaters glide on the bottom surface and achieve resistance with the side edges against the ice in order to propel themselves. In order to achieve motion the back and legs of the skater must be put in strenuous positions and extensions. The back must be placed too far forward and the legs moved too far laterally which reduces efficiency in achieving motion. This causes excessive strain and stress to be put on the joints and ligaments. Acceleration, cornering, maneuverability, and braking are hampered. The side edge does not provide enough traction from the ice in order for the skater to achieve optimum motion and skating ability.
These disadvantages can be substantially overcome by adding edge(s) with slopes of any shape and size to the bottom location of ice skate blades.
Bottom surface edge(s) allow the bottom of skate blades to largely remain in contact with the ice surface. They thus work in conjunction with any number of other bottom surface edges or the two conventional side edges to increase traction.
Acceleration, cornering, maneuverability, and braking are increased resulting inthe creation of performance ice blades. Centrally located and all other bottom edges can be any angle size between zero and 180 degrees, placed at any point along any horizontal, vertical, or sloped axis located between the side perimeters.
With the bottom surface remaining more in contact with the ice during tl~e skating process greater physical support is provided. This results in the reduction of over extensions and decrease of stress in the back, knees, and ankles, making skating more comfortable and reducing injuries.
A bottom edge which is less in angle size will promote skating and braking in relation to an edge which can be greater in angle size which will promote more gliding. An edge placed on a sloped axis will promote ,, ~ 7~ o a ~
maneuverability, and cornering. Round slopes promote gliding. Grooves placed in slopes promote movement control. The blade frame can be increased or decreased in thickness to accommodate any number of bottom surface edges.
One of the bottom edges may be more centrally located in the bottom surface of the blade. This central edge is greater in angle size than all other edges.
A 120 to 140 degree edge provides ample gliding surface to a skater and at the same time is much more efficient and responsive than a flat surface. When lateral motion is initiated by a skater, an edge located toward the instep or sidestep perimeter will achieve greater traction because it is already inclined toward and into the ice. This edge(s) may preferably be between 80 to 100 degrees and placed at higher horizontal planes.
For this reason a skaters legs need to travel a shorter lateral distance.
When the skate blade is inclined this next edge is placed into the ice at an angle great enough to allow it to penetrate the ice and permit traction upon contact.
Thus, less lateral gliding and movement is required. A subsequent edge is prepositioned to work itself into the ice surface. The angle of contact being preset, and increasing in biting angle as the blade is inclined, a better bite into the ice occurs. Thus, acceleration, braking, maneuverability are achieved much more efficiently.
The three factors which most determine the edges ability to work with each other and increase traction and performance are the height of the edges in relation to each other, the axis on which they are positioned in relation to each other and their angle in relation to each other (between 0 and 180 degrees).
When the angle size of the bottom most pivot edge is increased, greater blade frame angle inclination, and lateral movement is required, reducing traction. When the angle size is decreased less blade frame inclination, and lateral or gliding movement is required because the pivot edge has more bite to overcome the contact surface with, and achieve traction. The same principle applies to subsequent edges.
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One of the bottom edges may be more centrally located in the bottom surface of the blade. This central edge is greater in angle size than all other edges.
A 120 to 140 degree edge provides ample gliding surface to a skater and at the same time is much more efficient and responsive than a flat surface. When lateral motion is initiated by a skater, an edge located toward the instep or sidestep perimeter will achieve greater traction because it is already inclined toward and into the ice. This edge(s) may preferably be between 80 to 100 degrees and placed at higher horizontal planes.
For this reason a skaters legs need to travel a shorter lateral distance.
When the skate blade is inclined this next edge is placed into the ice at an angle great enough to allow it to penetrate the ice and permit traction upon contact.
Thus, less lateral gliding and movement is required. A subsequent edge is prepositioned to work itself into the ice surface. The angle of contact being preset, and increasing in biting angle as the blade is inclined, a better bite into the ice occurs. Thus, acceleration, braking, maneuverability are achieved much more efficiently.
The three factors which most determine the edges ability to work with each other and increase traction and performance are the height of the edges in relation to each other, the axis on which they are positioned in relation to each other and their angle in relation to each other (between 0 and 180 degrees).
When the angle size of the bottom most pivot edge is increased, greater blade frame angle inclination, and lateral movement is required, reducing traction. When the angle size is decreased less blade frame inclination, and lateral or gliding movement is required because the pivot edge has more bite to overcome the contact surface with, and achieve traction. The same principle applies to subsequent edges.
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Placing a subsequent edge at a higher horizontal axis in relation to a pivot edge, traction is decreased because blade frame inclination is increased, along with lateral movement. Also, sharp edge angle entry will prevent further traction loss. Placing a subsequent edge at a lower height in relation to a pivot edge, traction is increased because frame inclination angle, and lateral movement are decreased. As well, less edge bite will reduce traction.
Moving an edge from one vertical axis position to another, will move an edge closer and farther away from other edges. When an edge is moved closer to another edge, frame inclination angle and lateral movement are increased, reducing traction. Also, sharp edge entry will prevent further traction loss. When an edge is moved farther away from another, frame inclination angle and lateral movement are decreased, resulting in increased traction. As well, less edge bite will reduce traction.
Placing an edge at a sloped axis will increase and decrease traction.
The side of the edge that is sloping away from the ice has more bite because it requires less frame inclination angle, and lateral movement to achieve traction.The side sloping toward the ice provides gliding.
Thus, the angle size of the edges, their height or horizontal axis position, their vertical axis position, and their sloped axis position; these three factors working together according to the specifications to which they are preset, will determine the increased functionability of this ice skate blade technology over flat blades, to allow better skating.
In drawings which illustrate examples of preferred embodiments of the invention, Figure 1 is a cross-section of a skate blade embodying the invention, Figure 2 is a perspective view of the blade of Figure 1, Figure 3 is a cutaway perspective view of a further embodiment, Figure 4 is a perspective view of the blade of Figure 3, Figure 5 is a cross-section of a further embodiment, Figures 6a and 6b are cross-sections of left and right blades, respectively, embodying a further embodiment, Figure 7 is a perspective view of the blade of Figure 6b, Figures 8a and 8b are cross-sections showing the blades of Figures 6a and 6b showing alternate centre and in step edge positions in phantom lines, Figures 9a and 9b are cross-sections of left and right blades, respectively, embodying a further embodiment, and Figure 10 is a perspective view of the blade of Figure 9b.
Detailed Description of the Invention In Figures 1 and 2, the edge(s) 1, la, lb are formed, cut or added to the bottom surface of a skate blade. The number of edges 1 may vary and is unlimited.
The size of the angles may vary between zero and one hundred and eighty degrees.
The length and shape of the slopes of the surfaces 2 may be the same or vary in relation to each other. Any size and shape of grooves 3 can be placed in the sloped surfaces 2 The thickness of the blade frame 4 can be increased or decreased to accommodate any number of edges 1. In the illustrated embodiment la are sidestep edges which are less in angle than the central edge 1; lb are instep edges which are less in angle than the central edge 1.
In Figures 3 and 4, the bottom surfaces 2 are curved. The number of edges 1 may vary and are unlimited. The size of their angles may vary and ~ ~ 7 3 between zero and 180 degrees. The angled surfaces 2a slope at any length and shape. Grooves 3 are any size and shape. Any blade frame 4 thickness can be provided to accommodate any number of bottom edges 1. In step edges la are less in angle size than central edge 1. Central edge 1 is greater in angle size than the other edges la. Edge 1 is a pivot and support edge.
In Figure 5, the edges 1, la, lb are cut, formed, or added. The number of edges 1 may vary and is unlimited. The size of their angles may vary between zero and one hundred and eighty degrees. All the locations along any horizontal,vertical, and sloped axis where the edge(s) may be placed are designated 7. The slope(s) of the surfaces 2 and their length and shape may vary or be the same inrelation to each other.
In Figures 6a and 6b the bottom surface edge(s) 1, la, lb may vary between zero and 180 degrees in angle size. The shape and length of the slopes of the surfaces 2 may vary, as shown in phantom, or be constant in relation to eachother.
In Figure 7, side step edge lb may be the same angle size or less than that of the central edge 1. This side step edge lb has been placed at the same height or horizontal axis as the central edge 1. This would cause the side step edge lb to give regular traction and performance. The central edge 1 may be increased from 90 degrees to between 90 and 180 degrees. The in step edge la is positioned at agreater height in order to bite into the ice upon contact much more quickly and efficiently.
In the new blade the instep edge la is placed above central edge 1, and thus is better positioned to grip the ice surface upon inclination. The central edge 1 is a pivot and glide edge. It may have a sloped axis of 45 degrees or a vertical axis.
This causes it to have a slope horizontal with the ice surface when the blade is not inclined. The lateral distance a blade of the invention must travel for good traction is determined by the angle size of the central pivot edge, the height difference of edges and the edge slope axis.
. " .~
~ ~ 7 In Figures 9a and 9b, the edges 1, la, lb are cut, formed, or added. The number of edge(s) 1 is unlimited. Their angles may vary between zero and one hundred and eighty degrees. All the locations along any horizontal, vertical, and sloped axis where the edge(s) may be placed are designated 7. The slopes of the surfaces and their length and shape may vary or be the same in relation to each other.
In Figure 10, side step edge lb is less in angle size than central edge 1 and less in edge size than instep edge la (has less bite). The central edge 1 is greater in angle size than other edges la, lb, placed on a sloped axis to act as a pivot and glide edge, which is improved by the sloped axis. In step edge la is less in angle size than central edge 1 and greater in edge size than side step edge lb (has more bite). Sidestep edge lb and instep edge la are pre-positioned at a height to make optimum bite contact with the ice surface.
~ ~4 : ;~ . ~;.'
Moving an edge from one vertical axis position to another, will move an edge closer and farther away from other edges. When an edge is moved closer to another edge, frame inclination angle and lateral movement are increased, reducing traction. Also, sharp edge entry will prevent further traction loss. When an edge is moved farther away from another, frame inclination angle and lateral movement are decreased, resulting in increased traction. As well, less edge bite will reduce traction.
Placing an edge at a sloped axis will increase and decrease traction.
The side of the edge that is sloping away from the ice has more bite because it requires less frame inclination angle, and lateral movement to achieve traction.The side sloping toward the ice provides gliding.
Thus, the angle size of the edges, their height or horizontal axis position, their vertical axis position, and their sloped axis position; these three factors working together according to the specifications to which they are preset, will determine the increased functionability of this ice skate blade technology over flat blades, to allow better skating.
In drawings which illustrate examples of preferred embodiments of the invention, Figure 1 is a cross-section of a skate blade embodying the invention, Figure 2 is a perspective view of the blade of Figure 1, Figure 3 is a cutaway perspective view of a further embodiment, Figure 4 is a perspective view of the blade of Figure 3, Figure 5 is a cross-section of a further embodiment, Figures 6a and 6b are cross-sections of left and right blades, respectively, embodying a further embodiment, Figure 7 is a perspective view of the blade of Figure 6b, Figures 8a and 8b are cross-sections showing the blades of Figures 6a and 6b showing alternate centre and in step edge positions in phantom lines, Figures 9a and 9b are cross-sections of left and right blades, respectively, embodying a further embodiment, and Figure 10 is a perspective view of the blade of Figure 9b.
Detailed Description of the Invention In Figures 1 and 2, the edge(s) 1, la, lb are formed, cut or added to the bottom surface of a skate blade. The number of edges 1 may vary and is unlimited.
The size of the angles may vary between zero and one hundred and eighty degrees.
The length and shape of the slopes of the surfaces 2 may be the same or vary in relation to each other. Any size and shape of grooves 3 can be placed in the sloped surfaces 2 The thickness of the blade frame 4 can be increased or decreased to accommodate any number of edges 1. In the illustrated embodiment la are sidestep edges which are less in angle than the central edge 1; lb are instep edges which are less in angle than the central edge 1.
In Figures 3 and 4, the bottom surfaces 2 are curved. The number of edges 1 may vary and are unlimited. The size of their angles may vary and ~ ~ 7 3 between zero and 180 degrees. The angled surfaces 2a slope at any length and shape. Grooves 3 are any size and shape. Any blade frame 4 thickness can be provided to accommodate any number of bottom edges 1. In step edges la are less in angle size than central edge 1. Central edge 1 is greater in angle size than the other edges la. Edge 1 is a pivot and support edge.
In Figure 5, the edges 1, la, lb are cut, formed, or added. The number of edges 1 may vary and is unlimited. The size of their angles may vary between zero and one hundred and eighty degrees. All the locations along any horizontal,vertical, and sloped axis where the edge(s) may be placed are designated 7. The slope(s) of the surfaces 2 and their length and shape may vary or be the same inrelation to each other.
In Figures 6a and 6b the bottom surface edge(s) 1, la, lb may vary between zero and 180 degrees in angle size. The shape and length of the slopes of the surfaces 2 may vary, as shown in phantom, or be constant in relation to eachother.
In Figure 7, side step edge lb may be the same angle size or less than that of the central edge 1. This side step edge lb has been placed at the same height or horizontal axis as the central edge 1. This would cause the side step edge lb to give regular traction and performance. The central edge 1 may be increased from 90 degrees to between 90 and 180 degrees. The in step edge la is positioned at agreater height in order to bite into the ice upon contact much more quickly and efficiently.
In the new blade the instep edge la is placed above central edge 1, and thus is better positioned to grip the ice surface upon inclination. The central edge 1 is a pivot and glide edge. It may have a sloped axis of 45 degrees or a vertical axis.
This causes it to have a slope horizontal with the ice surface when the blade is not inclined. The lateral distance a blade of the invention must travel for good traction is determined by the angle size of the central pivot edge, the height difference of edges and the edge slope axis.
. " .~
~ ~ 7 In Figures 9a and 9b, the edges 1, la, lb are cut, formed, or added. The number of edge(s) 1 is unlimited. Their angles may vary between zero and one hundred and eighty degrees. All the locations along any horizontal, vertical, and sloped axis where the edge(s) may be placed are designated 7. The slopes of the surfaces and their length and shape may vary or be the same in relation to each other.
In Figure 10, side step edge lb is less in angle size than central edge 1 and less in edge size than instep edge la (has less bite). The central edge 1 is greater in angle size than other edges la, lb, placed on a sloped axis to act as a pivot and glide edge, which is improved by the sloped axis. In step edge la is less in angle size than central edge 1 and greater in edge size than side step edge lb (has more bite). Sidestep edge lb and instep edge la are pre-positioned at a height to make optimum bite contact with the ice surface.
~ ~4 : ;~ . ~;.'
Claims (16)
1. An ice skate blade comprising a blade frame having a bottom surface defined between a side step edge and a single central edge located between an instep edge and the side step edge, and extending substantially horizontally relative to the blade frame, the in step edge being disposed at a level above the central edge.
2. The ice skate blade of claim 1 in which between the in step edge and the central edge are a substantially horizontal raised surface and a substantially vertical surface.
3. The ice skate blade of claim 1 in which between the in step edge and the central edge are a substantially horizontal raised surface and an oblique surface.
4. The ice skate blade of claim 1 in which between the in step edge and the central edge are two oblique surfaces adjoining at an obtuse angle.
5. The ice skate blade of claim 2 in which the bottom surface has a width substantially equal to a width of the raised surface.
6. The ice skate blade of claim 2 in which the bottom surface has a widthgreater than a width of the raised surface.
7. The ice skate blade of claims 2, 3, 4, 5 or 6 in which on or more horizontal, vertical or sloped surfaces are interposed between the substantiallyhorizontal raised surface and the central edge.
8. The ice skate blade of claims 1, 2, 3, 4, 5 or 6 in which the bottom surface is provided with at least one groove.
9. An ice skate blade comprising a blade frame having an inner limit defined by an instep edge and an outer limit defined by a side step edge, and a single central edge inset from the inner limit, the in step edge being disposed at a vertical level above the central edge.
10. The ice skate blade of claim 9 in which the central edge is defined by a substantially vertical surface and a bottom surface of the blade.
11. The ice skate blade of claim 9 in which the central edge is defined by an oblique surface and a bottom surface of the blade.
12. The ice skate blade of claim 9 in which the central edge is disposed substantially along a central axis of the blade.
13. The ice skate blade of claim 9 in which the central edge is disposed between the in step edge and a central axis of the blade.
14. The ice skate blade of claim 9 in which the central edge is disposed between the side step edge and a central axis of the blade.
15. The ice skate blade of claims 9, 10, 11, 12, 13 or 14 in which one ormore horizontal, vertical or sloped surfaces are interposed between the central edge and the in step edge.
16 The ice skate blade of claims 9, 10, 11, 12, 13 or 14 in which one or more horizontal, vertical or sloped surfaces are interposed between the central edge and the side step edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2173001 CA2173001C (en) | 1996-03-29 | 1996-03-29 | Ice skate blade technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2173001 CA2173001C (en) | 1996-03-29 | 1996-03-29 | Ice skate blade technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2173001A1 CA2173001A1 (en) | 1997-02-10 |
| CA2173001C true CA2173001C (en) | 1998-07-14 |
Family
ID=4157854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2173001 Expired - Fee Related CA2173001C (en) | 1996-03-29 | 1996-03-29 | Ice skate blade technology |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2173001C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD733240S1 (en) | 2009-03-12 | 2015-06-30 | 1339513 Ontario Ltd. | Flat bottom vee ice skate blade |
| US9259637B2 (en) | 2007-05-10 | 2016-02-16 | 1339513 Ontario Ltd. | Ice skate blades and sharpening machines |
| USD751614S1 (en) | 2011-03-28 | 2016-03-15 | 1339513 Ontario Ltd. | Multiple spinner carousel for dressing a grinding wheel |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008365B3 (en) | 2007-02-16 | 2008-08-21 | Onyx-Systems Patentmanagement Gmbh | Winter sports equipment with runners |
| US8056907B2 (en) | 2008-05-02 | 2011-11-15 | 1339513 Ontario Ltd. | Ice skate blades |
| US7934978B2 (en) | 2007-05-10 | 2011-05-03 | 1339513 Ontario Ltd. | Ice skate blade sharpening machine |
| ES2370480B1 (en) * | 2009-12-24 | 2012-08-30 | Ulf Morgan Friberg | Applicable singing of skis, snowboards and ice skates. |
| CN106955481B (en) * | 2017-04-18 | 2018-11-02 | 哈尔滨体育学院 | Skating basic exercise skates |
-
1996
- 1996-03-29 CA CA 2173001 patent/CA2173001C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9259637B2 (en) | 2007-05-10 | 2016-02-16 | 1339513 Ontario Ltd. | Ice skate blades and sharpening machines |
| US9480903B2 (en) | 2007-05-10 | 2016-11-01 | 1339513 Ontario Ltd. | Ice skate blades and sharpening machines |
| USD733240S1 (en) | 2009-03-12 | 2015-06-30 | 1339513 Ontario Ltd. | Flat bottom vee ice skate blade |
| USD766392S1 (en) | 2009-03-12 | 2016-09-13 | 1339513 Ontario Ltd. | Flat bottom vee ice skate blade |
| USD751614S1 (en) | 2011-03-28 | 2016-03-15 | 1339513 Ontario Ltd. | Multiple spinner carousel for dressing a grinding wheel |
| USD827684S1 (en) | 2011-03-28 | 2018-09-04 | 1339513 Ontario Ltd. | Multiple spinner carousel for dressing a grinding wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2173001A1 (en) | 1997-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |