US20070278843A1 - Surface conditioning attachment - Google Patents
Surface conditioning attachment Download PDFInfo
- Publication number
- US20070278843A1 US20070278843A1 US11/442,914 US44291406A US2007278843A1 US 20070278843 A1 US20070278843 A1 US 20070278843A1 US 44291406 A US44291406 A US 44291406A US 2007278843 A1 US2007278843 A1 US 2007278843A1
- Authority
- US
- United States
- Prior art keywords
- attachment
- blade
- frusto
- conical
- disc
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
Abstract
A surface cutting attachment for a powered floor abrading or polishing machine, said attachment having a plurality of frusto-conical blades releasable secured in a support having a complimentary frusto-conical socket. Upon the cutting edge becoming worn the frusto-conical blade can be rotated to present a previously unused part of the annular cutting edge. The blades are mounted on a rotatable plate in equally spaced circumferential intervals and a plurality of plates are rotatably mounted at equally spaced circumferential intervals on a power drive disc.
Description
- The present invention is related to improved equipment for removing adherents from surfaces and simultaneously developing a relatively smooth surface. In particular, the present invention is related to an improvement in the ability to remove adherents such as paint and the like from concrete surfaces.
- The art of surface refinement for concrete is now well practiced. In general, concrete, either newly poured or existing, is ground to a smooth surface to improve the appearance. The grinding is typically accomplished by a grinding machine comprising a multiplicity of moving abrasive tools. The abrasive tools move across the surface and remove a sufficient amount of the concrete to create a smooth surface. Abrasive are well known and typically include bits of diamond, or similar hard material, in a binder. The ratio of binder to abrasive and abrasive particle size defines the aggressiveness of the abrasive. It is common to abrade the surface with decreasingly aggressive abrasives such that the final treatment polishes the surface to the final smoothness desired.
- It is not uncommon for surfaces to have a coating thereon. Paints are frequently used, as are adhesives and glues for tiles, carpet and the like. Removing coatings from a surface can be very difficult. Abrasives are very inefficient at removing soft materials since they tend to clog. Therefore, prior to treating the surface with an abrasive, the surface coating or treatment must be removed. There are many ways of removing the surface treatment, none of which are satisfactory. Solvents can be used but this technique is not desirable for a myriad of reasons, all of which are self-explanatory. Projectile approaches, such as sand blasting, pressure washing and the like can be used but they are unacceptable in closed areas or places where the high volume of dust and/or moisture is unacceptable. Furthermore, the equipment utilized for such operations is totally different from that used to polish a floor thereby requiring equipment to be brought into the area twice. This is highly undesirable in a business that is constantly confronted with demands for lowered cost.
- It would be highly desirable to have a system for removing adherents from a surface which is compatible with a grinding system thereby eliminating the necessity of multiple trips to the same job site. It would also be highly desirable to have a system which can remove adherents from a surface without requiring a projectile which scatters removed material, and the projectile, over large areas. These demands have not been adequately met in the past.
- An improved surface finishing tool is provided with a plurality of circumferentially spaced frusto-conical cutters or blades mounted on the underside of an annular plate which is rotatable about a vertical axis. Each blade is secured to an igloo or dome shaped support presenting a frusto-conical socket for receiving a frusto-conical cutter which is held in place by a coaxially positioned cap screw threaded into a threaded opening in the igloo shaped support. An exposed portion of a large diameter edge of the blade performs an efficient scraping or cutting action for removing surface coatings or adhesives, which are more difficult to remove when using rubbing type abrasion or polishing tools. Upon occurrence of wear the blade can be rotated to a new position, thus providing an efficient floor resurfacing tool with excellent service life.
- The invention is illustrated in the accompanying drawings, in which:
-
FIG. 1 is a perspective view of a rotary plate to which six cutter assemblies are attached; -
FIG. 2 is an exploded view showing a frusto-conical cutter and its mounting fastener; -
FIG. 3 is a bottom view showing three rotary plate rotatably mounted on a driven disc; -
FIG. 4 is a bottom perspective view showing a plate being secured to its shaft; -
FIG. 5 is a section taken on line 5-5 inFIG. 3 ; -
FIG. 6 is a section taken on line 6-6 inFIG. 5 , and -
FIG. 7 is an enlarged partial section view of the blade showing its tapered cutting edge. - The invention is described with particular reference to the accompanying drawings forming a part of the present specification. The instant invention is directed to an improved surface treatment apparatus and method wherein surface adherents are removed efficiently and thoroughly by use of cutter assemblies having a replaceable carbon steel frusto-conical cutter or
blade 20 with an annularbeveled cutting edge 24. By contacting the floor surface with thebeveled cutting edge 24, the problems associated with material buildup on prior art abraders are eliminated. - A power rotated
horizontal plate 10 for a floor conditioning machine, illustrated in a bottom perspective view inFIG. 1 , has acentral mounting void 12, with primary lobes, 14, and secondary lobes, 16, which facilitate connection of theplate 10 to a power driven shaft, not shown, by aconnector 19 as shown inFIGS. 3 and 4 . As shown inFIG. 3 , threeplates 10 are secured to threeshafts disc 17 of a floor polishing machine and are rotated about equally spacedvertical axes axis 43 of thedisc 17. Rigidly secured to eachplate 10 near its circumference and extending downwardly there from are iglooshaped supports 18, each of which have a frusto-conical socket 31 adapted to accept a frusta-conical blade 20. Theblade 20 is mounted such that itsparallel faces blades 20 is attached to its iglooshaped support 18 by a threaded fastener orscrew 22, which is in threaded engagement with a threadedopening 26 of theannulus 20. Thescrew 22 includes atapered end portion 27 which mates with thetapered shoulder 23 of thescrew 22 when it is installed. Theplate 10 is driven about its axis in the direction of thearrow 29, shown inFIG. 1 , thereby presenting asharp edge 24 which removes material adhering to the floor. - A particular advantage of the instant invention is the ability to loosen and rotate the
blade 20 to present a new section of thecutting edge 24, thereby greatly extending the life span of theblade 20. - Each igloo
shaped support 18 is welded to theplate 10 at equal intervals forming a circumferential ring ofblades 20. Each iglooshaped support 18 has a frusto-conicalshaped socket 31 with which the complimentary shaped frusto-conicalshaped surface 32 of theblade 20 engages in a wedging fit upon tightening of thescrew fastener 22. The wedging fit of the frusto-conical surfaces of the socket and theblade 20 and the wedging fit of the tapered head of thescrew 22 nonrotatably secure theblade 20 to itssupport 18. Thefront face 36 of theblade 20 and therear face 37 of theblade 20 are substantially parallel, with the radially outer edge of thefront face 36 tapering axially outwardly thereby forming a taperedcircumferential cutting lip 38 with the sharptapered cutting edge 24. - As illustrated, the igloo
shaped support 18 is notched presenting avertical wall 41, in general alignment with theface 36 of theblade 20, and ahorizontal shoulder 42 positioned below the lower edge of thesocket 31. During a floor surface operation thedisc 17 is driven clockwise about itsvertical axis 43 indicated by anarrow 44 inFIG. 3 and theplates 10 are also rotated clockwise about their axes as viewed inFIG. 3 .FIG. 4 shows aplate 10 being secured to itsdrive shaft 46. The other twodrive shafts respective plates 10. Three downward extendingflaps 51, positioned in equal circumferentially spaced relation to one another and in interstice relation to the power drivenplates 10, are provided to sweep away material removed from the floor by theblades 20. - Prior art floor abrading devices present a flat abrasion face which is parallel to the surface. A particular problem is the accumulation of material in the roughened face of the abrasive. As abraded material, surface dust and dislodged abrasive particles are created they tend to lodge in the surface of the abrasive thereby decreasing the effectiveness. With the present invention a relatively sharp cutting edge is presented, instead of a flat face thereby eliminating the accumulation of particles on the surface working tool. As a result the amount of time required to clean a large area is decreased due to the self cleaning feature of the
blade 20. As the cutting edge wears, the blade can be rotated very easily to prevent a new edge. In order to renovate the usual power driven floor abrader, the abrasive element must be frequently replaced at considerable operating expense.
Claims (8)
1. A surface cutting attachment for a powered floor conditioning machine comprising:
a horizontally disposed disc adapted for connection to said machine for driven rotation about a first vertical axis,
three horizontal disposed annular plates rotatably mounted on the underside of said disc for rotation in a predetermined direction about equally spaced vertical axes defining a circle concentric with said first vertical axis, and
at least three cutter assemblies mounted near the circumference of and extending downwardly from each of said plates, said cutter assemblies being equally spaced circumferentially to define a circle concentric with said plate upon which they are mounted and each including an igloo shaped support rigidly secured to the underside of its associated plate, said support having a notch with a vertical wall, said vertical wall having a facing frusto-conical socket formed therein facing in said predetermined direction, and
a frusto-conical blade having a frusto-conical surface in wedging engagement with said socket, said frusto-conical blade presenting a radially outer leading cutting edge having a portion extending downwardly beyond said igloo shaped support, said cutting edge being adapted to cuttingly engage a floor surface when said plate is rotated in said predetermined direction of said leading edge.
2. The attachment of claim 1 wherein said leading edge is tapered.
3. The attachment of claim 1 wherein said blade is releasably secured to said support by a releasable fastener and wherein upon release of said releasable fastener, said blade is rotatably positionable to present a different portion of said cutting edge in cutting relation to said floor.
4. The attachment of claim 1 wherein said attachment includes six cutting assemblies.
5. The attachment of claim 1 wherein said blade includes an annular opening concentric with the axis of said blade and said igloo shaped support includes a threaded annular opening concentric with said socket and further comprising a threaded fastener extending through said annular opening and in threaded engagement with said threaded annular opening.
6. The attachment of claim 5 wherein said threaded opening includes an unthreaded tapered end portion in said socket and wherein said screw includes a tapered shoulder in engagement with said tapered end portion.
7. The attachment of claim 1 wherein a downward extending flap is secured to a part of said disc between said plates, said flap being operative to sweep abraded material from the floor during rotation of said disc.
8. The attachment of claim 7 wherein a flap is secured to said disc between each circumferentially adjacent pair of said plates.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/442,914 US20070278843A1 (en) | 2006-05-30 | 2006-05-30 | Surface conditioning attachment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/442,914 US20070278843A1 (en) | 2006-05-30 | 2006-05-30 | Surface conditioning attachment |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070278843A1 true US20070278843A1 (en) | 2007-12-06 |
Family
ID=38789254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/442,914 Abandoned US20070278843A1 (en) | 2006-05-30 | 2006-05-30 | Surface conditioning attachment |
Country Status (1)
Country | Link |
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US (1) | US20070278843A1 (en) |
Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347596A (en) * | 1965-03-01 | 1967-10-17 | Gen Stone And Materials Corp | Portable surfacing machine for terrazzo floors |
US3613147A (en) * | 1969-05-26 | 1971-10-19 | John H Norfleet | Wall surface scraper tool |
US3678532A (en) * | 1970-04-06 | 1972-07-25 | Reed L Boyd | Rotating disc scraper |
US4295274A (en) * | 1978-07-27 | 1981-10-20 | Tennant Company | Scarifying machine |
US4592108A (en) * | 1983-01-03 | 1986-06-03 | Tennant Company | Tool and method for scarifying a surface |
US4610112A (en) * | 1984-09-17 | 1986-09-09 | John Kelsey | Apparatus for grinding and/or reconditioning plane, annular surfaces |
US4614380A (en) * | 1983-11-03 | 1986-09-30 | The Boeing Company | Power driven rotary floor preparation device |
US4758050A (en) * | 1984-07-06 | 1988-07-19 | Equipment Development Co., Inc. | Stripping machine cutter finger assembly |
US5081734A (en) * | 1990-10-09 | 1992-01-21 | The Re Partnership | Floor scraping machine |
US5161331A (en) * | 1990-03-17 | 1992-11-10 | Officine Meccaniche F.Lli Zambon S.N.C | Rotating head having oscillating blocks for leveling and polishing surfaces of granite, ceramic or marble |
US5275470A (en) * | 1992-10-27 | 1994-01-04 | Prodigy Products, Inc. | Scraping device for powered stone floor dressing unit |
US5409299A (en) * | 1993-11-03 | 1995-04-25 | Cooper Floor Services, Inc. | Apparatus for removing floor covering |
US5514027A (en) * | 1994-04-22 | 1996-05-07 | Pearl Abrasive Co. | Sanding head for a sanding machine |
US5658100A (en) * | 1994-08-25 | 1997-08-19 | Walter Ag | Interlocking, or form fitting cutting bit or chip |
US5683143A (en) * | 1996-01-11 | 1997-11-04 | Pearl Abrasive Company | Abrasive surface treatment apparatus having removable blocks |
US5788561A (en) * | 1996-01-11 | 1998-08-04 | Pearl Abrasive Co. | Apparatus for grinding floor surfaces and/or cutting grooves in floors |
US5885139A (en) * | 1997-07-15 | 1999-03-23 | Lemieux; Francois | Floor covering stripping and floor re-surfacing machine |
US6021771A (en) * | 1998-09-04 | 2000-02-08 | Equipment Development Co., Inc. | Surfacing machine with "strip-sert" cutter assemblies |
USD434052S (en) * | 1999-11-15 | 2000-11-21 | Equipment Development Company, Inc. | Grinder blade assembly |
US6231432B1 (en) * | 1999-11-12 | 2001-05-15 | Pearl Abrasive Company | Floor treatment machine with torque limiter |
US6331138B1 (en) * | 1997-05-27 | 2001-12-18 | Holland Industriele Diamantwerken B.V. | Grinding machine |
US6491575B2 (en) * | 1997-07-03 | 2002-12-10 | Andreas Sarantitis | Tool for the removal of paint-like materials from work surfaces |
US20030040265A1 (en) * | 2001-07-23 | 2003-02-27 | Simon Palushi | Wood floor sanding machine |
US20030210961A1 (en) * | 2002-03-21 | 2003-11-13 | Peder Arvidsson | Tool and cutting insert for chip removing machining |
US7104739B2 (en) * | 2004-04-13 | 2006-09-12 | Eugen Laegler Gmbh | Milling disk for a floor machining appliance |
-
2006
- 2006-05-30 US US11/442,914 patent/US20070278843A1/en not_active Abandoned
Patent Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3347596A (en) * | 1965-03-01 | 1967-10-17 | Gen Stone And Materials Corp | Portable surfacing machine for terrazzo floors |
US3613147A (en) * | 1969-05-26 | 1971-10-19 | John H Norfleet | Wall surface scraper tool |
US3678532A (en) * | 1970-04-06 | 1972-07-25 | Reed L Boyd | Rotating disc scraper |
US4295274A (en) * | 1978-07-27 | 1981-10-20 | Tennant Company | Scarifying machine |
US4592108A (en) * | 1983-01-03 | 1986-06-03 | Tennant Company | Tool and method for scarifying a surface |
US4614380A (en) * | 1983-11-03 | 1986-09-30 | The Boeing Company | Power driven rotary floor preparation device |
US4758050A (en) * | 1984-07-06 | 1988-07-19 | Equipment Development Co., Inc. | Stripping machine cutter finger assembly |
US4610112A (en) * | 1984-09-17 | 1986-09-09 | John Kelsey | Apparatus for grinding and/or reconditioning plane, annular surfaces |
US5161331A (en) * | 1990-03-17 | 1992-11-10 | Officine Meccaniche F.Lli Zambon S.N.C | Rotating head having oscillating blocks for leveling and polishing surfaces of granite, ceramic or marble |
US5081734A (en) * | 1990-10-09 | 1992-01-21 | The Re Partnership | Floor scraping machine |
US5275470A (en) * | 1992-10-27 | 1994-01-04 | Prodigy Products, Inc. | Scraping device for powered stone floor dressing unit |
US5409299A (en) * | 1993-11-03 | 1995-04-25 | Cooper Floor Services, Inc. | Apparatus for removing floor covering |
US5514027A (en) * | 1994-04-22 | 1996-05-07 | Pearl Abrasive Co. | Sanding head for a sanding machine |
US5658100A (en) * | 1994-08-25 | 1997-08-19 | Walter Ag | Interlocking, or form fitting cutting bit or chip |
US5683143A (en) * | 1996-01-11 | 1997-11-04 | Pearl Abrasive Company | Abrasive surface treatment apparatus having removable blocks |
US5788561A (en) * | 1996-01-11 | 1998-08-04 | Pearl Abrasive Co. | Apparatus for grinding floor surfaces and/or cutting grooves in floors |
US6331138B1 (en) * | 1997-05-27 | 2001-12-18 | Holland Industriele Diamantwerken B.V. | Grinding machine |
US6491575B2 (en) * | 1997-07-03 | 2002-12-10 | Andreas Sarantitis | Tool for the removal of paint-like materials from work surfaces |
US5885139A (en) * | 1997-07-15 | 1999-03-23 | Lemieux; Francois | Floor covering stripping and floor re-surfacing machine |
US6021771A (en) * | 1998-09-04 | 2000-02-08 | Equipment Development Co., Inc. | Surfacing machine with "strip-sert" cutter assemblies |
US6231432B1 (en) * | 1999-11-12 | 2001-05-15 | Pearl Abrasive Company | Floor treatment machine with torque limiter |
USD434052S (en) * | 1999-11-15 | 2000-11-21 | Equipment Development Company, Inc. | Grinder blade assembly |
US20030040265A1 (en) * | 2001-07-23 | 2003-02-27 | Simon Palushi | Wood floor sanding machine |
US6616517B2 (en) * | 2001-07-23 | 2003-09-09 | Onfloor Technologies, Llc | Wood floor sanding machine |
US20030210961A1 (en) * | 2002-03-21 | 2003-11-13 | Peder Arvidsson | Tool and cutting insert for chip removing machining |
US7104739B2 (en) * | 2004-04-13 | 2006-09-12 | Eugen Laegler Gmbh | Milling disk for a floor machining appliance |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |