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US20030070326A1 - Ice resurfacing blade - Google Patents

Ice resurfacing blade Download PDF

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Publication number
US20030070326A1
US20030070326A1 US10/272,746 US27274602A US2003070326A1 US 20030070326 A1 US20030070326 A1 US 20030070326A1 US 27274602 A US27274602 A US 27274602A US 2003070326 A1 US2003070326 A1 US 2003070326A1
Authority
US
United States
Prior art keywords
blade
ice
resurfacing
mounting
comprised
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.)
Abandoned
Application number
US10/272,746
Other languages
English (en)
Inventor
Andrew Beilin
William Birch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/272,746 priority Critical patent/US20030070326A1/en
Priority to PCT/US2002/033189 priority patent/WO2003033992A2/fr
Priority to CA002463857A priority patent/CA2463857A1/fr
Priority to AU2002353820A priority patent/AU2002353820A1/en
Publication of US20030070326A1 publication Critical patent/US20030070326A1/en
Priority to US11/159,499 priority patent/US20050245184A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
    • E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails
    • E01H4/023—Maintaining surfaces for ice sports, e.g. of skating rinks

Definitions

  • This invention relates to a device for cutting and smoothing ice with an ice resurfacing machine.
  • Zamboni® is a registered trademark of Frank J. Zamboni & Co., Inc.
  • Olympia is the registered trademark of Leclair Equipment Ltd.
  • the machines employ a large metal blade which scrapes the surface of the ice a precise amount in order to provide an ice surface which is free of defects and which can be left smooth by the introduction of a thin layer of water, which promptly freezes into a new, smooth ice surface.
  • the blade scrapes a ⁇ fraction (1/16) ⁇ -inch to 1 ⁇ 8-inch layer of ice off the ice surface.
  • the blade is as wide as the machine and looks like a very large razor blade.
  • the amount of ice taken off depends on the ice conditions. The more use the ice has, the rougher the surface becomes and the deeper the blade must cut.
  • the replacement procedure is also dangerous.
  • Each blade weighs about 50 pounds and has one very sharp edge.
  • the blade can easily sever an appendage, such as a finger, foot or hand, if it falls.
  • the blade is at its most dangerous during replacement when the worker must reach under the machine and install ten or more bolts to secure the blade in place. Further, the used blades and new replacement blades must be kept stored at the ice rink.
  • Used blades are usually re-sharpened. Because of the size of the blade and the requirement that the blade be very straight and very sharp, sharpening must be done by a machine shop on expensive equipment. This requires that the blades be shipped to the machine shop and returned to the ice rink after sharpening.
  • the blades have a limited life before they are scrapped because each sharpening procedure removes metal from the edge of the blade, thereby reducing its width.
  • the blades also corrode from exposure to the perpetually wet environment of an ice rink.
  • the resulting rust shortens the life of the blade and creates an undesirable staining of both the blade and anything that it comes in contact with, such as the ice rink floor or the technician that replaces the worn blade with a new blade.
  • the machinist must clean the excess rust from the blade before it can be sharpened.
  • the blades must be carefully adjusted during use to avoid making too deep of a resurfacing cut. A cut as deep as 3 ⁇ 8-inch will destroy the blade, perhaps requiring it to be scrapped, if not just removed and re-sharpened. Further, the blades are easily damaged if they strike a hard object, such as a metal threshold surrounding the ice rink entry.
  • the blade is not damaged, thereby shortening its useful life, then its normal life is typically about 15 months, after which it must be scrapped. It is normal that a blade will be removed from the resurfacing machine and sharpened twice per week.
  • the invention is a blade made of stainless steel that has one or two sharp edges for ice reconditioning.
  • the blade can be re-sharpened when it has become dull.
  • the blade may be made of 440C stainless steel and has pre-drilled holes that are threaded to facilitate mounting on the ice resurfacing machine, such as a Zamboni® machine and to avoid having to reach under the machine to install each bolt individually.
  • the mounting hole pattern is designed to allow mounting of the blade to a wide variety of known ice resurfacing equipment.
  • the blade is heat-treated to provide a very hard edge that lasts longer and that cuts deeper than known blades while providing a high quality finished ice surface.
  • the blade stays sharp longer than a conventional blade, it cuts the ice deeper while leaving the resurfaced ice surface flatter and smoother than is possible with a known blade.
  • the blade is stronger and does not chatter when making cuts as deep as 3 ⁇ 8-inch, a cut that destroys known blades.
  • the blade may have two sharp edges, which reduces the cost of blade inventory and reduces the number of blades required for a given resurfacing machine, thus insuring that a blade is available when needed.
  • the cost of maintaining the blade is reduced because it has a long life, as long as 15 years.
  • the cost of replacement is reduced because the blade maintains a sharp edge longer, thus requiring removal and re-sharpening at long intervals, on the order of three weeks.
  • the blade lasts about four times longer than any known blade.
  • stainless steel does not rust when exposed for long durations to the ice resurfacing machine environment at an ice rink.
  • FIG. 1 illustrates a perspective view of the blade and safety cover.
  • FIG. 2 depicts a perspective view of the back of the blade.
  • An ice resurfacing blade 10 illustrated in FIG. 1 is configured to be mounted to a conventional ice-resurfacing machine.
  • the ice resurfacing blade 10 is comprised of a corrosion resistant, heat-treatable metal that is as about 77 to 84-inches long.
  • the preferred material is stainless steel such as 440C.
  • Alternative steels include 17-4 ph stainless, 15-5 ph stainless, 13-8 ph stainless, 410 stainless, and 420 stainless. These materials are less advantageous since they are not heat treatable to the same extent as the preferred 440C stainless.
  • Blades 10 that are comprised of other corrosion resistant materials, such as ceramics, including, alumina, transformation toughened alumina, transformation toughened zirconia, carbides, nitrides, or refractory materials, such as tungsten carbide, tungsten nitride, nitrided steel, and refractory metals, including tungsten, molybdenum, and niobium.
  • the blade 10 may be a composite blade that includes inserts of these materials in a mounting plate, where the corrosion resistant material forms a part of the sharp first use edge 12 or second use edge 14 that retain their sharpness after prolonged use.
  • a further alternative embodiment utilizes coatings of hard, corrosion resistant materials, such as ceramic or refractory metals, on the blade 10 so as to enable the blade edge 12 and edge 14 to maintain a sharp edge for prolonged use.
  • hard, corrosion resistant materials such as ceramic or refractory metals
  • ceramic coatings include diamond, diamond like carbon, and ultra-nanocrystalline diamond.
  • first use edge 12 is on front surface of blade 30 and second use edge 14 is on back surface of blade 42 . This is not preferred for safety reasons, since in the preferred design both edges 12 and 14 are protected with one safety cover 20 .
  • the blade 10 is machined to the approximate final dimensions, including placing the sharp edges 10 and 12 at a known blade angle 16 that is preferably approximately 30°. In alternative embodiments, the blade angle 16 may vary between about 15° and 65°.
  • receiver holes 32 each containing a receiver hole step 34 before heat treatment.
  • Each hole 32 is identical to the other.
  • a bushing 18 is placed in each receiver hole 32 after heat-treatment and machining of the blade 10 .
  • conventional grinding operations are performed to result in a straight blade 10 and parallel edges 12 and 14 .
  • a preferred material for the bushing 18 is 303 stainless steel.
  • the bushing 18 contains a bushing reduction 24 that when pressed into receiver hole 32 bottoms out on receiver hole step 34 , thereby securely fixing the bushing 18 in the holes 32 .
  • the bushings 18 are machined flat to the front surface 30 and to the back surface 42 of blade 10 . Then a series of holes 22 are placed at precise locations so as to align with the required mounting holes in the resurfacing machine.
  • the holes 22 may be through holes with no threading, but in a preferred embodiment each hole 22 is threaded to receive a mounting bolt 40 .
  • the mounting bolt 40 emerges from the back surface 42 as a threaded stud, as shown in FIG. 2.
  • each mounting bolt 40 is ready to receive a nut after the blade is initially placed in position.
  • mounting bolt 40 is not threaded, but is attached to a resurfacing machine by means such as pins placed though holes in the bolts 40 that emerge from blade 10 .
  • FIG. 2 The back surface 42 of blade 10 is illustrated in FIG. 2 with the threaded mounting bolts 40 , which are securely fastened to the blade 10 by means of the threaded bushing 18 , emerging from bushing 18 .
  • the bushing reduction 24 having been machined to be flat with back surface 42 of blade 10 .
  • the final machining is performed to place straight sharp edge of first use 12 and straight edge of second use 14 parallel to the longitudinal axis of the blade 10 and parallel to each other.
  • the heat treatment is preferably accomplished to result in an extremely hard material having a preferred hardness of about 55 to 60 Rockwell C when the blade 10 material is 440C stainless.
  • an alternative embodiment is to honeycomb the front surface 32 and/or the back surface 42 of the blade 10 . This stiffens the blade without increasing the weight. The resulting blade stiffness leads to reduced vibration helps to insure that the machined ice surface is smooth and ripple free.
  • a safety cover 20 illustrated in FIG. 1, is a preferred embodiment wherein the safety cover 20 has dimensions that are approximately equal to the length and width of front surface 30 .
  • the safety cover 20 is preferably made of a lightweight material, such as aluminum, but may be comprised of any strong material, such as wood or metal.
  • the safety cover 20 is held in place during shipping, storage, handling, and placement by safety cover bolts 44 , preferably one at each end of safety cover 20 .
  • the safety cover through holes 46 are not threaded and are aligned with the threaded holes 36 in the front surface 32 .
  • Safety cover bolts 44 are securedly attached into safety cover mounting holes 36 . It is preferred that the safety cover 20 remains in place on blade 20 until blade 20 is mounted and secured to the resurfacing machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Gloves (AREA)
  • Tires In General (AREA)
  • Knives (AREA)
US10/272,746 2001-10-17 2002-10-16 Ice resurfacing blade Abandoned US20030070326A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/272,746 US20030070326A1 (en) 2001-10-17 2002-10-16 Ice resurfacing blade
PCT/US2002/033189 WO2003033992A2 (fr) 2001-10-17 2002-10-17 Lame de resurfaçage pour la glace
CA002463857A CA2463857A1 (fr) 2001-10-17 2002-10-17 Lame de resurfacage pour la glace
AU2002353820A AU2002353820A1 (en) 2001-10-17 2002-10-17 Ice resurfacing blade
US11/159,499 US20050245184A1 (en) 2001-10-17 2005-06-23 Ice resurfacing blade

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32994001P 2001-10-17 2001-10-17
US10/272,746 US20030070326A1 (en) 2001-10-17 2002-10-16 Ice resurfacing blade

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/159,499 Continuation-In-Part US20050245184A1 (en) 2001-10-17 2005-06-23 Ice resurfacing blade

Publications (1)

Publication Number Publication Date
US20030070326A1 true US20030070326A1 (en) 2003-04-17

Family

ID=26955715

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/272,746 Abandoned US20030070326A1 (en) 2001-10-17 2002-10-16 Ice resurfacing blade
US11/159,499 Abandoned US20050245184A1 (en) 2001-10-17 2005-06-23 Ice resurfacing blade

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/159,499 Abandoned US20050245184A1 (en) 2001-10-17 2005-06-23 Ice resurfacing blade

Country Status (4)

Country Link
US (2) US20030070326A1 (fr)
AU (1) AU2002353820A1 (fr)
CA (1) CA2463857A1 (fr)
WO (1) WO2003033992A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050245184A1 (en) * 2001-10-17 2005-11-03 32 Degrees, Inc. Ice resurfacing blade
US20060097564A1 (en) * 2004-11-10 2006-05-11 Seely Scott H Resurfacing ice skating rinks

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329831A (en) * 1940-08-03 1943-09-21 Lester C Ferguson Scraper blade
US3529677A (en) * 1968-05-15 1970-09-22 Kennametal Inc Grader blade
US5778572A (en) * 1996-12-11 1998-07-14 Caterpillar Inc. Wear resistant cutting edge and method for making same
US5813474A (en) * 1996-05-24 1998-09-29 Kennametal Inc. Plow blade
US6094845A (en) * 1997-05-07 2000-08-01 Lela; Gary J. Snow-handling trail-grooming device
US6109362A (en) * 1997-11-24 2000-08-29 Simpson, Sr.; David W. Hand grader

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US652311A (en) * 1899-04-15 1900-06-26 John T Hourihan Ice-planing machine.
US715955A (en) * 1900-02-24 1902-12-16 William T Wood & Company Ice-plane.
US2257992A (en) * 1939-11-14 1941-10-07 Kochring Company Dirt moving machine
US2778129A (en) * 1951-05-16 1957-01-22 Gen Motors Corp Offset cutting edge for scrapers
US2763939A (en) * 1952-10-23 1956-09-25 Frank J Zamboni Ice rink resurfacing machine
US3011274A (en) * 1958-02-19 1961-12-05 Curtiss Wright Corp Blade construction for carry-type scraper
US2981015A (en) * 1959-04-29 1961-04-25 Int Harvester Co Cutting blade assembly for scrapers
US3044193A (en) * 1960-05-04 1962-07-17 Frank J Zamboni & Co Ice resurfacing machine
US3302975A (en) * 1964-06-29 1967-02-07 Boniard I Brown Ice resurfacing machine
US3469331A (en) * 1965-10-21 1969-09-30 Jay J Wood Reversible edge bit structure for blade of earth working implement
US3475056A (en) * 1967-03-17 1969-10-28 Kenneth R Jones Ice resurfacing machine
US3622205A (en) * 1970-06-22 1971-11-23 Frank J Zamboni & Co Ice rink resurfacing machine
US3851711A (en) * 1973-05-29 1974-12-03 Caterpillar Tractor Co Replaceable cutting edge
US3917350A (en) * 1974-04-22 1975-11-04 Tennant Co Ice resurfacer cutting blade apparatus
US4390071A (en) * 1979-11-23 1983-06-28 Paper, Calmenson & Co. Replaceable cutting blade assembly for dozers
US4372617A (en) * 1981-01-05 1983-02-08 Frank J. Zamboni & Co. Ice edger for ice resurfacing machine
US4705320A (en) * 1986-06-10 1987-11-10 Frank J. Zamboni & Co. Inc. Ice resurfacing machine blade holder
US4770253A (en) * 1987-02-20 1988-09-13 Kennametal Inc. Grader blade with tiered inserts on leading edge
US4899472A (en) * 1988-02-11 1990-02-13 Winter Kent L Snow plow guards comprising pliant polymer
US5701690A (en) * 1996-04-16 1997-12-30 Miscio; Raymond Device for filling a hole in an ice rink surface
US6240662B1 (en) * 1997-05-19 2001-06-05 Jeff Borowiak Snow plow having removable plow guard attachment
CA2213114A1 (fr) * 1997-10-07 1999-04-07 Wilf Vaillancourt Surface de glace amelioree
US6138387A (en) * 1998-07-07 2000-10-31 Fox; Paul G. Portable ice resurfacing device
WO2000079060A1 (fr) * 1999-06-18 2000-12-28 Toronto Gmbh Dispositif a raboter place sur des machines de traitement de la glace
US20030070326A1 (en) * 2001-10-17 2003-04-17 Andrew Beilin Ice resurfacing blade
CA2437234A1 (fr) * 2003-08-12 2005-02-12 Jeff Buchko Fixation de lame aimante dans une machine de traitement de la glace
US7364240B2 (en) * 2004-11-10 2008-04-29 Edward Wisz Resurfacing ice skating rinks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329831A (en) * 1940-08-03 1943-09-21 Lester C Ferguson Scraper blade
US3529677A (en) * 1968-05-15 1970-09-22 Kennametal Inc Grader blade
US5813474A (en) * 1996-05-24 1998-09-29 Kennametal Inc. Plow blade
US5778572A (en) * 1996-12-11 1998-07-14 Caterpillar Inc. Wear resistant cutting edge and method for making same
US6094845A (en) * 1997-05-07 2000-08-01 Lela; Gary J. Snow-handling trail-grooming device
US6109362A (en) * 1997-11-24 2000-08-29 Simpson, Sr.; David W. Hand grader

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050245184A1 (en) * 2001-10-17 2005-11-03 32 Degrees, Inc. Ice resurfacing blade
US20060097564A1 (en) * 2004-11-10 2006-05-11 Seely Scott H Resurfacing ice skating rinks
US7364240B2 (en) 2004-11-10 2008-04-29 Edward Wisz Resurfacing ice skating rinks
US20080155864A1 (en) * 2004-11-10 2008-07-03 Scott Hastings Seely Ice skating rink resurfacing apparatus
US7698837B2 (en) 2004-11-10 2010-04-20 Edward Wisz Ice skating rink resurfacing apparatus

Also Published As

Publication number Publication date
CA2463857A1 (fr) 2003-04-24
US20050245184A1 (en) 2005-11-03
WO2003033992A3 (fr) 2004-03-04
AU2002353820A1 (en) 2003-04-28
WO2003033992A2 (fr) 2003-04-24
WO2003033992A8 (fr) 2004-04-22

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STCB Information on status: application discontinuation

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