WO1994023900A1 - Dispositif pour aiguiser le bord des lames de patins a glace - Google Patents

Dispositif pour aiguiser le bord des lames de patins a glace Download PDF

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Publication number
WO1994023900A1
WO1994023900A1 PCT/US1994/002999 US9402999W WO9423900A1 WO 1994023900 A1 WO1994023900 A1 WO 1994023900A1 US 9402999 W US9402999 W US 9402999W WO 9423900 A1 WO9423900 A1 WO 9423900A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
bore
slot
stone
width
Prior art date
Application number
PCT/US1994/002999
Other languages
English (en)
Inventor
Bradley J. Anderson
Original Assignee
Anderson Bradley J
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/044,749 external-priority patent/US5431597A/en
Application filed by Anderson Bradley J filed Critical Anderson Bradley J
Priority to AU66970/94A priority Critical patent/AU6697094A/en
Publication of WO1994023900A1 publication Critical patent/WO1994023900A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/066—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges for sharpening skate blades, i.e. blades having two sharp edges defined by three surfaces intersecting in pairs at an angle of substantially 90°

Definitions

  • the invention relates to tools for sharpening ice skate blades, particularly skate blades having two edges located between a hollow concave curved surface.
  • ice skates are sharpened or touched up using a rotating grinding wheel of a grinding machine.
  • the grinding machine takes a sizeable cut out of the blade each time it is used to sharpen the blade which reduces the useful life of the blade.
  • the blades become excessively sharp increasing the risk of injury.
  • the cost of using the grinding machine limits the number of times a skater can affordably sharpen his or her skates.
  • An alternative to the grinding machine is to use hand held sharpening tools. These tools have a stone that is moved back and forth lengthwise along the skate blade. The stone sharpening surface quickly wears or becomes dirty whereby the tool has to be replaced.
  • the invention is directed to a hand operated ice skate sharpening tool that functions to prolong skate blade life and lowers costs associated with conventional grinding methods of skate sharpening.
  • the sharpener has a cylindrical sharpening stone rotatable within a housing whereby unused surfaces of the stone can be rotated and used to sharpen ice skate blades. The stone is easily removed from the housing for replacement or cleaning of the stone.
  • the sharpener has a generally rectangular body with opposite ends.
  • a cylindrical bore extends longitudinally through the body. The bore is open to each end of the body.
  • a cylindrical stone is located in the bore for sharpening edges of a skate blade. The diameter of the stone is slightly less than the diameter of the bore so that the stone can be rotated within the bore to position unused surfaces of the stone adjacent the edges of the skate blade.
  • the stone has a convex curved outer surface that is complementary to the concave shape on the bottom surface of the blade. The stone can be removed from the bore through one of the open ends of the body for replacement or cleaning purposes.
  • Pins located in holes in the body adjacent the ends of the stone extend into the bore to fix the longitudinal position of the stone within the bore. Each pin has open side ends so that the diameter of the pin can be reduced to remove the pin from the hole and thereby facilitate removal of the stone from the bore.
  • the body of the sharpener has an elongated slot that extends generally parallel to the longitudinal axis of the bore.
  • the slot is open to the top of the bore and also to the opposite ends of the body. This provides access to the outer surface of the stone for the blade to be sharpened.
  • the blade is inserted into the slot to position the bottom surface of the blade in engagement with the outer surface of the stone.
  • Upwardly projecting flanges joined to the body adjacent the slot have transversely spaced inner surfaces aligned with the outer sides of the slot.
  • the sharpener is then moved lengthwise along the blade in both longitudinal directions to sharpen the edges of the blade.
  • the slot has a width substantially the same as the width of the blade to prevent lateral movement of the blade within the slot.
  • Flanges guide the blade as the sharpener is moved relative to the blade.
  • the sharpening procedure results in blade edges having a non- excessive sharpness facilitating skating and reducing risk of injury.
  • a transverse groove in the sharpener body has a bottom portion that intersects the top portion of the bore. This exposes the top surface of the stone to facilitate the rotation thereof within the bore. The user uses a thumb or finger to slightly rotate the stone and position an unused surface of the stone in alignment with the slot. When all of the outer surface of the stone becomes worn, the stone can be replaced by removing the pin from the housing and removing the stone from the bore.
  • a modification of the sharpener has a generally rectangular body with opposite ends and a cylindrical bore that extends longitudinally through the body opening to each end of the body.
  • a generally cylindrical member is located in the bore.
  • the member has opposite ends that are rotatably mounted on annular bearings that fit into the ends of the bore.
  • a tubular sleeve of stone material is attached to the outer surface of the cylindrical member and is used to sharpen edges of a skate blade.
  • the cylindrical member rotates on bearings to position an unused surface of the sleeve adjacent the edges of the blade.
  • the bearings function to prolong the useful life of the cylindrical member.
  • the sleeve has a convex curved outer surface complementary to the curve of the bottom surface of the blade.
  • the screws are turned out of engagement with the bearings so that the cylindrical member can be removed from the bore through one of the open ends of the body for replacement or cleaning purposes.
  • the body of the sharpener has an elongated slot extending generally parallel to the longitudinal axis of the bore.
  • the slot is open to the top of the bore and to the ends of the body. This provides access to the outer surface of the sleeve so that the blade can be sharpened.
  • Upwardly projecting flanges joined to the body have transversely spaced inner surfaces that are aligned with the inner surfaces of the body forming the slot and are used to guide the blade as the sharpener is rubbed against the blade.
  • the distance between the flanges and the width of the slot are substantially the same as the width of the blade to prevent lateral movement of the blade within the slot.
  • a transverse groove in the sharpener body has a bottom cylindrical intersecting top portion of the bore whereby the cylindrical member can be rotated by the user person as desired.
  • Figure 1 is a perspective view of an ice hockey skate sharpener of the invention
  • Figure 2 is a top view of Figure 1;
  • Figure 3 is a bottom view of Figure 1;
  • Figure 4 is an end view of Figure 1;
  • Figure 5 is a side view of Figure 1;
  • Figure 6 is a sectional view taken along the line 6-6 of Figure 5;
  • Figure 7 is an enlarged side view of the skate sharpener of Figure 1 inserted on a blade of an ice hockey skate;
  • Figure 8 is a sectional view taken along the line 8-8 of Figure 7;
  • Figure 9 is a partially sectioned end view of an ice hockey skate blade showing the concave curved bottom surface of the blade;
  • Figure 10 is a perspective view of a modification of the ice hockey skate sharpener of the invention
  • Figure 11 is a top view of Figure 10;
  • Figure 12 is a bottom view of Figure 10;
  • Figure 13 is an enlarged sectional view taken along the line 13-13 of Figure 11;
  • Figure 14 is an end view of Figure 10;
  • Figure 15 is a side view of Figure 10;
  • Figure 16 is a sectional view taken along the line 16- 16 of Figure 15;
  • Figure 17 is an enlarged side view of the skate sharpener of Figure 10 inserted on a blade of an ice hockey skate;
  • Figure 18 is a sectional view taken along the line 18- 18 of Figure 17;
  • Figure 19 is a partially sectioned end view of an ice hockey skate blade showing the concave curved bottom surface of the blade.
  • Blade sharpener 10 is used to make a concave groove 34 and define bottom edges 36 and 37 of an ice hockey skate blade 33.
  • Sharpener 10 is a hand held device that can be carried in an equipment bag and used at rink side to sharpen blade 33 to the user's personal preference to match ice conditions and the like.
  • Sharpener 10 has a generally rectangular body 11 having a flat bottom surface 12 that curves upwardly into a pair of upright side walls 13 and 14.
  • Body 11 has generally flat ends 16 and 17 that extend between side walls 13 and 14.
  • Upper portions of side walls 13 and 14 curve inwardly to define a top wall 18 and body 11.
  • a slot 19 extends longitudinally on top wall 18 along the length of body 11. Slot 19 is open to each end 16 and 17 of body 11. As shown in Figure 8, slot 19 has a width that is substantially the same as the width of blade 33.
  • the body 11 has a centrally located cylindrical bore 21 that extends the length of body 11 and is open to ends 16 and 17. The top of bore 21 is open to slot 19. Slot 19 can have different widths to accommodate blades having different widths.
  • body 11 has transverse groove or U-shaped recess 22 in top wall 18 that interrupts slot 19.
  • the bottom of groove 22 intersects a top portion of bore 21 adjacent a mid-point of bore 21.
  • Upwardly projecting flanges 23, 24, 25 and 26 are joined to top wall 18 adjacent groove 22.
  • Flanges 23 - 26 have transversely spaced inner surfaces, generally parallel to the inner surfaces of body 11 that form the 5 upper portion of slot 19.
  • Flanges 23 - 26 function to guide skate blade 33 and prevent lateral movement of the blade during the sharpening procedure as hereinafter described.
  • a generally cylindrical skate sharpening material or stone 27 is located in bore 21 of
  • Stone 27 has a diameter that is slightly less than the diameter of bore 21 whereby stone 27 can be rotated in bore 21, as shown by arrows 41 and 42 of Figures 2 and 6, respectively.
  • Stone 27 has a convex curved outer surface that is complementary to concave curve 34 on the bottom of skate blade 33.
  • Stone 27 can be removed from bore 21 for replacement or cleaning purposes.
  • the outer surface of stone 27 can have different convex curves to complement different concave curves on the bottom of other skate blades.
  • body 11 has a pair of holes 28 and 29 that extend normally to bottom wall 12 and are open to bore 21 adjacent opposite ends of stone 27.
  • Each hole 28, 29 has a diameter that is less than the width of slot 19. Stops or pins 31 and 32 are inserted into holes 28 and 29, respectively, and
  • Holes 28 and 29 are open to bottom wall 12 whereby a punch (not shown) or similar tool can be used to remove pins 31, 32 from holes 28, 29.
  • Pins 31, 32 are generally tubular members having open ends to form a split sleeve. This allows the diameter of pins 31, 32 to be reduced so that pins 31, 32 can be inserted into and removed from holes 28, 29 to facilitate removal of stone 27 from bore 21. When pins 31, 32 are in position adjacent the opposite ends of stone 27, pins 31, 32 expand into tight-fit engagement with body 11 within holes 28 and 29.
  • blade 33 is positioned on a stable surface with groove 34 facing upwardly. Drops of honing oil are placed along the length of blade 33 to lubricate the blade. Sharpener 10 is inverted, as shown in Figures 8 and 9, and slot 19 is aligned with the longitudinal exterior blade 33. Side walls 13 and 14 of body 11 are gripped with the thumb and forefingers of one hand of the user. The other hand is placed through the opening in the blade holder of the skate to temporarily fix the position of blade 33. Sharpener 10 is installed on blade 33 by moving blade 33 into slot 19 and into engagement with stone 27. The width of slot 19 is substantially the same as the width of blade 33 whereby sides 38 and 39 of blade 33 are located adjacent the inner surfaces of body 11 that define slot 19.
  • flanges 23 - 26 slideably engages sides 38 and 39.
  • the operator moves sharpener 10 back and forth lengthwise along blade 33, as indicated by arrows 43 and 44 in Figure 7, several times using minimal downward pressure.
  • Flanges 23 - 26 function to guide blade 33 longitudinally within slot 19 relative to stone 27.
  • the honing oil on blade 33 reduces friction between sides 38 and 39 and the inner surface of flanges 23 - 26 to reduce the force required for the sharpening stroke of the operator.
  • Sharpener 10 is then lifted off blade 33 to bring stone 5 27 out of engagement with the blade.
  • the thumb of the operator is placed into groove 22 and used to slightly rotate stone 27, as indicated by arrows 41 and 42 in Figures 2 and 6, whereby an unused surface of stone 27 is located directly below the bottom of slot 21.
  • Sharpener 10 is reinstalled on blade 33 by
  • sharpener 10 is removed from blade
  • Blade sharpener 100 is used to make a concave groove 134 and define bottom edges 136 and 137 of an ice hockey skate blade 133.
  • sharpener 100 has a generally rectangular body 111 having a flat bottom 112 curving upwardly into upright side walls 113 and 114.
  • Body 111 has generally flat end surfaces 116 and 117 extending between side walls 113 and 114.
  • the upper portions of side walls 113 and 114 curve inwardly to define a top wall 118 and body 111.
  • a longitudinal slot 119 is located on top wall 118 extending along the length of body 111.
  • Slot 119 is open to ends 116 and 117 of body 111.
  • slot 119 has a width substantially the same as the width of ice hockey skate blade 133. Slot 119 can have other widths to accommodate ice hockey skate blades having different widths.
  • body 111 has a centrally located cylindrical bore 121 that extends the length of body 111 and is open to ends 116 and 117.
  • the top of bore 121 is open to slot 119.
  • Body 111 has a transverse groove or U- shaped recess 122 in top wall 118 interrupting slot 119.
  • the bottom of groove 122 intersects the top portion of bore 121 at a mid-point of bore 121.
  • Upwardly projecting flanges 123, 124, 125 and 126 project from top wall 118 adjacent groove 122.
  • Flange 123 is transversely spaced from flange 124, and flange 125 is transversely spaced from flange 126.
  • flanges 123 - 126 extend generally parallel to the inner surfaces of body 111 thereby defining the upper portion of slot 119. Flanges 123 - 126 function to guide skate blade 133 preventing lateral movement of the blade during the sharpening procedure thereof.
  • a generally cylindrical member 130 is rotatably located in bore 121 of body 111.
  • a sleeve 127 surrounds the outer surface of cylindrical member 130 and is attached thereto with an adhesive.
  • Sleeve 127 is made of a skate sharpening material, such as a sharpening stone material.
  • Sleeve 127 has a convex curved outer surface complementary to concave curve 134 on the bottom of skate blade 133.
  • the outer surface of sleeve 127 can have other concave shapes to complement concave curves on the bottom of other skate blades.
  • Sleeve 127 has an outer diameter that is slightly less than the diameter of bore 121 whereby cylindrical member 130 can be rotated within bore 121.
  • the outer ends of sleeve 127 are spaced inwardly from the ends of cylindrical member 130.
  • a pair of annular bearings 131 and 132 are telescopically located on opposite ends of cylindrical member 130 adjacent sleeve 127.
  • Bearings 131 and 132 have an outer diameter substantially the same as the diameter of bore 121 and an inner diameter which is slightly more than the diameter of the ends of cylindrical member 130 whereby member 130 can be rotated relative to the bearings within bore 121.
  • Bearings 131 and 132 engage the outer ends of sleeve 127 to prevent longitudinal movement of outer ends of sleeve 127 to prevent longitudinal movement of member 130 relative to body 111. Cylindrical member 130 is rotated to move an unused sharpening surface of sleeve 127 into alignment with lower end of slot 119.
  • Each bearing 131, 132 has a longitudinal groove 13IA, 132A in a top portion thereof in alignment with slot 119. Grooves 131A and 132A allow sharpener 100 to be moved back and forth along skate blade 133 without interference from bearings 131 and 132.
  • body 111 has vertically threaded holes open to bottom wall 112 and bore 121 accommodating threaded screws 128 and 129 for holding bearings 131 and 132 in the outer ends of bore 121.
  • a hand tool (not shown) is used to tighten screws 128 and 129 into engagement with bearings 131 and 132, as shown in Figures 13 and 16, to fix the position of the bearings relative to body 111 and prevent longitudinal movement of cylindrical member 130.
  • Screws 128 and 129 are moved out of engagement with bearings 131 and 132 whereby cylindrical member 130 can be removed from bore 131 and 132 whereby cylindrical member 130 can be removed from bore 121 for replacement or cleaning purposes.
  • blade 133 is positioned so that the concave groove 134 faces upwardly.
  • Drops of honing oil are placed along the length of blade 133 for lubrication.
  • the honing oil reduced friction between sides 138 and 139 of blade 133 and the inner surfaces of body 111 and flanges 123 - 126.
  • sharpener 100 With sharpener 100 in an inverted position, the sharpener is placed over blade 133 with slot 119 aligned with the longitudinal exterior of blade 133.
  • Side walls 113 and 114 of sharpener body 111 are gripped with the thumb and forefingers of one hand of the operator. The other hand is positioned through the opening in the blade holder of the skate to fix the position of blade 133.
  • Moving blade 133 into slot 119 moves the bottom surface of the blade into engagement with sleeve 127.
  • the width of slot 119 is substantially the same as that of blade 133 whereby sides 138 and 139 of blade 133 are located adjacent the inner surfaces of body 111 and flanges 123 - 126.
  • Flanges 123 - 126 function to guide blade 133 longitudinally within slot 119 relative to sleeve 127. This prevents lateral movement of blade 133 within slot 119 and skewing of blade edges 136 and 137 during the sharpening process.
  • the user person moves sharpener 100 back and forth lengthwise along blade 133, as indicated by arrows 143 and 144 in Figure 17, several times using minimal downward pressure until surface 134 has a smooth concave shape.
  • sharpener 100 is removed from blade 133 and a generally flat stone (not shown) is placed on side 138 of the blade.
  • the flat stone is rubbed back and forth along the length of side 138 to remove burrs and other imperfections on blade 133.
  • Side 139 of blade 133 is finished with the flat stone in like manner. When sides 138 and 139 have been finished, excess oil is wiped from blade 133 with a cloth or towel.
  • To rotate cylinder member 130 the thumb of the user person is placed into groove 122 and used to slightly turn member 130, as indicated by arrow 141 in Figure 11, whereby an unused surface of sleeve 127 is located below the bottom of slot 121.
  • the ends of cylindrical member 130 rotate on bearings 131 and 132 as the unused surface of sleeve 127 is positioned adjacent the slot 121.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Un outil (10) tenu à la main servant à aiguiser les lames de patins à glace présente une pierre (27) d'affûtage rotative retenue dans un élément de corps (13) en forme de canal. Les tiges amovibles (31) montées sur le corps sont disposées près des extrémités externes de la pierre (27) pour limiter son mouvement longitudinal dans un canal de l'élément de corps (13). L'élément de corps (13) présente une fente d'accès (19) s'étendant radialement par rapport à la pierre (27). Des guides allongés (25, 26) faisant saillie vers le haut près de la fente (19) sont espacés transversalement à une distance qui est sensiblement identique à la largeur de la lame du patin pour guider et limiter le mouvement latéral de la lame dans la fente (19). Une rainure transversale (22) coupant la fente (19) et les guides (25, 26) est ouverte sur le canal (21), exposant la pierre (27). Ceci permet de tourner la pierre manuellement dans le canal (21) afin de faire tourner une surface d'affûtage non usée en alignement avec la fente (19).
PCT/US1994/002999 1993-04-12 1994-03-18 Dispositif pour aiguiser le bord des lames de patins a glace WO1994023900A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU66970/94A AU6697094A (en) 1993-04-12 1994-03-18 Skate blade edge resurfacer

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/044,749 1993-04-12
US08/044,749 US5431597A (en) 1993-04-12 1993-04-12 Skate blade edge resurfacer
US08/176,464 US5383307A (en) 1993-04-12 1994-01-03 Skate blade edge resurfacer
US08/176,464 1994-01-03

Publications (1)

Publication Number Publication Date
WO1994023900A1 true WO1994023900A1 (fr) 1994-10-27

Family

ID=26721954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/002999 WO1994023900A1 (fr) 1993-04-12 1994-03-18 Dispositif pour aiguiser le bord des lames de patins a glace

Country Status (2)

Country Link
AU (1) AU6697094A (fr)
WO (1) WO1994023900A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092831A (en) * 1936-01-27 1937-09-14 Cannon Will Alban Device for grinding the edges of blades
US2118617A (en) * 1937-04-08 1938-05-24 Constant E Nicolet Skate sharpener

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092831A (en) * 1936-01-27 1937-09-14 Cannon Will Alban Device for grinding the edges of blades
US2118617A (en) * 1937-04-08 1938-05-24 Constant E Nicolet Skate sharpener

Also Published As

Publication number Publication date
AU6697094A (en) 1994-11-08

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