US20150273658A1 - Button for a attaching an abrasive article to a back-up pad - Google Patents
Button for a attaching an abrasive article to a back-up pad Download PDFInfo
- Publication number
- US20150273658A1 US20150273658A1 US14/432,130 US201314432130A US2015273658A1 US 20150273658 A1 US20150273658 A1 US 20150273658A1 US 201314432130 A US201314432130 A US 201314432130A US 2015273658 A1 US2015273658 A1 US 2015273658A1
- Authority
- US
- United States
- Prior art keywords
- hub
- abrasive article
- button
- abrasive
- post
- 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
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- 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
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/20—Mountings for the wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/16—Bushings; Mountings
Definitions
- the present disclosure is directed to an abrasive article and to a button for attaching an abrasive article to a back-up pad.
- Abrasive articles can be quite useful for smoothing surfaces, polishing surfaces, removing material from surfaces, for cleaning surfaces, etc.
- Certain types of abrasive articles are configured in the shape of a wheel. During use, these abrasive wheels are rotated to create a moving surface on the abrasive wheel that can be placed in contact with another surface in order to alter a characteristic of that surface.
- the abrasive wheel In order to rotate an abrasive wheel, the abrasive wheel is typically mechanically coupled to a shaft of a motor via a tool holder, e.g., a chuck, that can be tightened to engage a portion of the abrasive wheel.
- FIG. 1 includes a view of an abrasive article assembly in accordance with a particular embodiment.
- FIG. 2 includes a partially exploded view of an abrasive article assembly in accordance with a particular embodiment.
- FIG. 3 includes a fully exploded view of an abrasive article assembly in accordance with a particular embodiment.
- FIG. 4 includes a view of a button for attaching an abrasive article to a back-up pad in accordance with a particular embodiment.
- FIG. 5 includes a plan view of a button for attaching an abrasive article to a back-up pad in accordance with another particular embodiment.
- FIG. 6 includes a view of a button for attaching an abrasive article to a back-up pad in accordance with yet another particular embodiment.
- FIG. 7 includes a plan view of a button for attaching an abrasive article to a back-up pad in accordance with yet another particular embodiment.
- FIG. 8 includes a view of a lower plate for a button for attaching an abrasive article to a back-up pad in accordance with a particular embodiment.
- FIG. 9 includes a view of an abrasive article in accordance with a particular embodiment.
- FIG. 10 includes a view of an abrasive article in accordance with a particular embodiment.
- “or” refers to an inclusive-or and not to an exclusive-or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).
- an abrasive article assembly is illustrated and is generally designated 100 .
- the abrasive article assembly 100 can include a back-up pad 102 and an abrasive article 104 coupled to the back-up pad 102 .
- the back-up pad 102 can include a housing 110 that defines a proximal end 112 and a distal end 114 .
- the housing 110 can include a threaded bore (not shown) that extends into the housing 110 from the proximal end 112 .
- the threaded bore can be sized and shaped to receive a threaded post of a button, described in detail below.
- a shank 116 can extend from the distal end 114 of the housing 110 .
- the shank 116 can be received and clamped within a drill chuck (not shown) or some other rotating tool.
- a drill chuck not shown
- the rotating abrasive article assembly 100 can be moved across a surface to be finished in order to abrade the surface, to smooth the surface, to polish the surface, to clean the surface, etc.
- FIG. 1 indicates that the abrasive article 104 can include an upper surface 120 , a lower surface 122 , and an outer peripheral surface 124 .
- the abrasive article 104 can be a non-woven abrasive article 104 .
- the non-woven abrasive article 104 can include a support, at least one polymeric binder, and abrasive particles.
- the support can include one or more nonwoven layers.
- Each nonwoven layer can include a plurality of fibers.
- the fibers can be bonded to each other by a polymeric binder, such as one derived from a latex.
- the fibers can include natural fibers, inorganic fibers, such as fiberglass, synthetic fibers, such as polyester fibers, polyamide fibers, or other suitable synthetic fibers, or any combination thereof.
- the abrasive particles can have a Mohs hardness of at least about 8.0, such as at least about 8.5, even at least about 9.0.
- the abrasive particles 108 can include superabrasive particles, such as diamond, cubic boron nitride, boron carbide, silicon carbide, or any combination thereof.
- the abrasive particles can have a size of between about 10 microns and about 1000 microns, such as between about 50 microns and about 500 microns, particularly between about 100 microns and about 200 microns.
- the one or more polymeric binders can include a curable polymeric binder.
- the curable polymeric binder can include a polyurethane resin, a phenoxy resin, polyester resin, or any combination thereof. Further, the curable polymeric binder can include a blocked resin.
- Polymeric binder can be a strong and flexible polymeric binder in order to hold the support together during abrading while allowing the support to be flexible enough to conform to the shape of the work piece. In a particular embodiment, the polymeric binder can be located between the fibers and the abrasive particles.
- the polymeric binder can include another polymeric binder, such as a phenolic resin, an epoxy resin, a formaldehyde-urea resin, or any combination thereof.
- the other polymeric binder can include a binder that bonds without significant curing and this binder can be used bond the abrasive particles to the support and to permit additionally processing of the abrasive article.
- the one or more polymeric binders can be formed from binder formulations that can further include components such as dispersed filler, solvents, plasticizers, chain transfer agents, catalysts, stabilizers, dispersants, curing agents, reaction mediators, or agents for influencing the fluidity of the dispersion.
- binder formulation can also be added to the binder formulation, including, for example, anti-static agents, such as graphite, carbon black, and the like; suspending agents, such as fumed silica; anti-loading agents, such as metal stearate, including zinc, calcium, or magnesium stearate; lubricants such as wax; wetting agents; dyes; fillers; viscosity modifiers; defoamers; or any combination thereof.
- anti-static agents such as graphite, carbon black, and the like
- suspending agents such as fumed silica
- anti-loading agents such as metal stearate, including zinc, calcium, or magnesium stearate
- lubricants such as wax
- wetting agents dyes
- fillers such as viscosity modifiers
- defoamers or any combination thereof.
- the non-woven abrasive article 104 can have an open structure.
- the open structure can include voids located between the fibers.
- the open structure can be at least about 25% open volume, such as at least about 40% open volume, such as at least about 55% open volume. Additionally, the open structure can be not greater than about 99% open volume, such as not greater than about 95% open volume, even not greater than about 90% open volume.
- FIG. 2 and FIG. 3 indicate that the abrasive article 104 can be removed from the back-up pad 102 . Further, FIG. 2 and FIG. 3 indicate that the abrasive article 104 can include a central bore 126 extending through the abrasive article 104 along a central axis 128 .
- the abrasive article assembly 100 can include a button 130 that can be used to connect the abrasive article 104 to the back-up pad 102 . Specifically, a threaded post that extends from the button 130 , and is described in detail below, can fit into and engage the threaded bore (not shown) formed in the housing 110 of the back-up pad 102 .
- FIG. 4 illustrates details of the button 130 .
- an embodiment of the button 130 can include a lower plate 132 .
- the lower plate 132 can be generally flat and disk-shaped.
- the lower plate 132 can include an outer diameter, O LP .
- the abrasive article 104 can include an outer diameter O AA .
- O LP can be ⁇ 50% O AA , such as ⁇ 45% O AA , ⁇ 40% O AA , ⁇ 35% O AA , or ⁇ 30% O AA .
- O LP can be ⁇ 10% O AA , such as ⁇ 15% O AA , ⁇ 20% O AA , or ⁇ 25% O AA . It will be appreciated that the O LP can be within a range between and including any of the percentages noted above relative to the O AA .
- O LP can be ⁇ 50% O AA and ⁇ 10% O AA , such as ⁇ 50% O AA and ⁇ 15% O AA , ⁇ 50% O AA and ⁇ 20% O AA , or ⁇ 50% O AA and ⁇ 25% O AA .
- O LP can be ⁇ 45% O AA and ⁇ 10% O AA , such as ⁇ 45% O AA and ⁇ 15% O AA , ⁇ 45% O AA and ⁇ 20% O AA , or ⁇ 45% O AA and ⁇ 25% O AA .
- O LP can be ⁇ 40% O AA and ⁇ 10% O AA , such as ⁇ 40% O AA and ⁇ 15% O AA , ⁇ 40% O AA and ⁇ 20% O AA , or ⁇ 40% O AA and ⁇ 25% O AA .
- O LP can be ⁇ 35% O AA and ⁇ 10% O AA , such as ⁇ 35% O AA and ⁇ 15% O AA , ⁇ 35% O AA and ⁇ 20% O AA , or ⁇ 35% O AA and ⁇ 25% O AA .
- O LP can be ⁇ 30% O AA and ⁇ 10% O AA , such as ⁇ 30% O AA and ⁇ 15% O AA , ⁇ 30% O AA and ⁇ 20% O AA , or ⁇ 30% O AA and ⁇ 25% O AA .
- a hub 134 can extend from the lower plate 132 .
- the hub 134 can include a proximal end 136 and a distal end 138 .
- the hub 134 is configured to fit into and engage the abrasive article 104 when the abrasive article 104 is installed over the hub 134 such that the hub 134 fits into the similarly sized and shaped central bore 126 of the abrasive article 104 .
- the hub 134 is configured to engage the abrasive article 104 , e.g., the inner wall of the central bore 126 , at least partially along a height of the hub 124 in order to engage the abrasive article 104 and to prevent the abrasive article 104 from rotating relative to the hub 134 .
- the hub 134 When the hub 134 is disengaged from the back-up pad 102 and removed from the abrasive article 104 , the hub 134 can include a height, H H , and the bore 126 within the abrasive article 104 can include a height, H B .
- H H ⁇ 0.99 H B .
- H H ⁇ 0.98 H B such as ⁇ 0.97 H B , ⁇ 0.96 H B , ⁇ 0.95 H B , ⁇ 0.94 H B , ⁇ 0.93 H B , ⁇ 0.92 H B , ⁇ 0.91 H B , or ⁇ 0.90 H B .
- H H ⁇ 0.80 H B , such as ⁇ 0.81 H B , ⁇ 0.82 H B , ⁇ 0.83 H B , ⁇ 0.84 H B , or ⁇ 0.85 H B .
- H H can be within a range between and including any of the values of H H described herein.
- H H can be ⁇ 0.99 H B and ⁇ 0.80 H B , such as ⁇ 0.99 H B and ⁇ 0.81 H B , ⁇ 0.99 H B and ⁇ 0.82 H B , ⁇ 0.99 H B and ⁇ 0.83 H B , ⁇ 0.99 H B and ⁇ 0.84 H B , or ⁇ 0.99 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.98 H B and ⁇ 0.80 H B , such as ⁇ 0.98 H B and ⁇ 0.81 H B , ⁇ 0.98 H B and ⁇ 0.82 H B , ⁇ 0.98 H B and ⁇ 0.83 H B , ⁇ 0.98 H B and ⁇ 0.84 H B , or ⁇ 0.98 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.97 H B and ⁇ 0.80 H B , such as ⁇ 0.97 H B and ⁇ 0.81 H B , ⁇ 0.97 H B and ⁇ 0.82 H B , ⁇ 0.97 H B and ⁇ 0.83 H B , ⁇ 0.97 H B and ⁇ 0.84 H B , or ⁇ 0.97 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.96 H B and ⁇ 0.80 H B , such as ⁇ 0.96 H B and ⁇ 0.81 H B , ⁇ 0.96 H B and ⁇ 0.82 H B , ⁇ 0.96 H B and ⁇ 0.83 H B , ⁇ 0.96 H B and ⁇ 0.84 H B , or ⁇ 0.96 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.95 H B and ⁇ 0.80 H B , such as ⁇ 0.95 H B and ⁇ 0.81 H B , ⁇ 0.95 H B and ⁇ 0.82 H B , ⁇ 0.95 H B and ⁇ 0.83 H B , ⁇ 0.95 H B and ⁇ 0.84 H B , or ⁇ 0.95 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.94 H B and ⁇ 0.80 H B , such as ⁇ 0.94 H B and ⁇ 0.81 H B , ⁇ 0.94 H B and ⁇ 0.82 H B , ⁇ 0.94 H B and ⁇ 0.83 H B , ⁇ 0.94 H B and ⁇ 0.84 H B , or ⁇ 0.94 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.92 H B and ⁇ 0.80 H B , such as ⁇ 0.92 H B and ⁇ 0.81 H B , ⁇ 0.92 H B and ⁇ 0.82 H B , ⁇ 0.92 H B and ⁇ 0.83 H B , ⁇ 0.92 H B and ⁇ 0.84 H B , or ⁇ 0.92 H B and ⁇ 0.85 H B .
- H H can be ⁇ 0.91 H B and ⁇ 0.80 H B , such as ⁇ 0.91 H B and ⁇ 0.81 H B , ⁇ 0.91 H B and ⁇ 0.82 H B , ⁇ 0.91 H B and ⁇ 0.83 H B , ⁇ 0.91 H B and ⁇ 0.84 H B , or ⁇ 0.91 H B and ⁇ 0.85 H B .
- H H can be less than H B before the button 130 is installed through the abrasive article 104 and engaged with the back-up pad 102 , when the button 130 is engaged with the back-up pad 102 and the abrasive article 104 is captured between the lower plate 132 and the proximal end 112 of the back-up pad 102 , the abrasive article 104 can be compressed between the lower plate 132 of the button 130 and the proximal end 112 of the back-up pad 102 such that the height of the bore when engaged, H BE , is equal to H H .
- the button 130 can be configured to apply a compressive force on the abrasive article, C F , wherein C F can be ⁇ 5 lbs, such as ⁇ 6 lbs, ⁇ 7 lbs, ⁇ 8 lbs, ⁇ 9 lbs, or ⁇ 10 lbs. Further, C F can be ⁇ 50 lbs, such as ⁇ 40 lbs, ⁇ 30 lbs, ⁇ 20 lbs, or ⁇ 15 lbs. Moreover, C F can be within a range between and including any of the values of C F described herein.
- C F can be ⁇ 5 lbs and ⁇ 50 lbs, such as ⁇ 5 lbs and ⁇ 40 lbs, ⁇ 5 lbs and ⁇ 30 lbs, ⁇ 5 lbs and ⁇ 20 lbs, or ⁇ 5 lbs and ⁇ 15 lbs.
- C F can also be ⁇ 6 lbs and ⁇ 50 lbs, such as ⁇ 6 lbs and ⁇ 40 lbs, ⁇ 6 lbs and ⁇ 30 lbs, ⁇ 6 lbs and ⁇ 20 lbs, or ⁇ 6 lbs and ⁇ 15 lbs.
- C F can be ⁇ 7 lbs and ⁇ 50 lbs, such as ⁇ 7 lbs and ⁇ 40 lbs, ⁇ 7 lbs and ⁇ 30 lbs, ⁇ 7 lbs and ⁇ 20 lbs, or ⁇ 7 lbs and ⁇ 15 lbs.
- C F can be ⁇ 8 lbs and ⁇ 50 lbs, such as ⁇ 8 lbs and ⁇ 40 lbs, ⁇ 8 lbs and ⁇ 30 lbs, ⁇ 8 lbs and ⁇ 20 lbs, or ⁇ 8 lbs and ⁇ 15 lbs.
- C F can be ⁇ 9 lbs and ⁇ 50 lbs, such as ⁇ 9 lbs and ⁇ 40 lbs, ⁇ 9 lbs and ⁇ 30 lbs, ⁇ 9 lbs and ⁇ 20 lbs, or ⁇ 9 lbs and ⁇ 15 lbs.
- C F can be ⁇ 10 lbs and ⁇ 50 lbs, such as ⁇ 10 lbs and ⁇ 40 lbs, ⁇ 10 lbs and ⁇ 30 lbs, ⁇ 10 lbs and ⁇ 20 lbs, or ⁇ 10 lbs and ⁇ 15 lbs.
- the hub 134 can have a cross-sectional shape, or an end shape, perpendicular to the central axis 128 that includes a convex polygon having at least three vertices.
- the cross-sectional shape of the hub can be selected from the group of shapes including: triangle, square, pentagon, and hexagon.
- the hub 134 can have a cross-sectional shape, or end shape, perpendicular to the central axis 128 that includes a concave polygon having at least six vertices.
- the cross-sectional shape of the hub 134 can be selected from the group of shapes including: concave hexagon, concave octagon, concave decagon, and concave dodecagon.
- the hub 134 can have a cross-sectional shape, or end shaped, perpendicular to the central axis 128 that includes a regular star polygon having at least ten vertices.
- the at least ten vertices can be selected from the group that includes: 10, 14, 18, 22, and 26 vertices.
- the distal end 138 of the hub 134 includes a surface area, A HDE
- the upper surface 120 of the abrasive article 104 can also include a surface area A USA .
- a HDE can be ⁇ 10.0% A USA , such as ⁇ 7.5% A USA , ⁇ 5.0% A USA , ⁇ 4.0% A USA , or ⁇ 3.0% A USA .
- a HDE can be ⁇ 0.5% A USA , such as ⁇ 0.75% A USA , ⁇ 1.0% A USA , ⁇ 1.25% A USA , ⁇ 1.5% A USA , ⁇ 1.75% A USA , ⁇ 2.0% A USA , or ⁇ 2.5% A USA .
- a HDE can be within a range between and including any of the values of A HDE described herein.
- a HDE can be ⁇ 10.0% A USA and ⁇ 0.5% A USA , such as ⁇ 10.0% A USA and ⁇ 0.75% A USA , ⁇ 10.0% A USA and ⁇ 1.0% A USA , ⁇ 10.0% A USA and ⁇ 1.5% A USA , ⁇ 10.0% A USA and ⁇ 2.0% A USA , or ⁇ 10.0% A USA and ⁇ 2.5% A USA .
- a HDE can be ⁇ 7.5% A USA and ⁇ 0.5% A USA , such as ⁇ 7.5% A USA and ⁇ 0.75% A USA , ⁇ 7.5% A USA and ⁇ 1.0% A USA , ⁇ 7.5% A USA and ⁇ 1.5% A USA , ⁇ 7.5% A USA and ⁇ 2.0% A USA , or ⁇ 7.5% A USA and ⁇ 2.5% A USA .
- a HDE can be ⁇ 5.0% A USA and ⁇ 0.5% A USA , such as ⁇ 5.0% A USA and ⁇ 0.75% A USA , ⁇ 5.0% A USA and ⁇ 1.0% A USA , ⁇ 5.0% A USA and ⁇ 1.5% A USA , ⁇ 5.0% A USA and ⁇ 2.0% A USA , or ⁇ 5.0% A USA and ⁇ 2.5% A USA .
- a HDE can be ⁇ 4.0% A USA and ⁇ 0.5% A USA , such as ⁇ 4.0% A USA and ⁇ 0.75% A USA , ⁇ 4.0% A USA and ⁇ 1.0% A USA , ⁇ 4.0% A USA and ⁇ 1.5% A USA , ⁇ 4.0% A USA and ⁇ 2.0% A USA , or ⁇ 4.0% A USA and ⁇ 2.5% A USA .
- a HDE can be ⁇ 3.0% A USA and ⁇ 0.5% A USA , such as ⁇ 3.0% A USA and ⁇ 0.75% A USA , ⁇ 3.0% A USA and ⁇ 1.0% A USA , ⁇ 3.0% A USA and ⁇ 1.5% A USA , ⁇ 3.0% A USA and ⁇ 2.0% A USA , or ⁇ 3.0% A USA and ⁇ 2.5% A USA .
- the button 130 can also include a back-up pad engagement post 150 that can extend from the hub 134 longitudinally along the central axis 128 .
- the engagement post 150 can include a height, H P .
- the engagement post 150 can include a proximal end 152 and a distal end 154 and at least one helical thread 156 can extend outwardly along H P from the proximal end 152 of the engagement post 150 to the distal end 154 of the engagement post 150 .
- the helical thread 156 can include a thread lead, L. In a particular aspect, L can be ⁇ 0.50 H P .
- L can also be ⁇ 0.57 H P , such as ⁇ 0.66 H P , ⁇ or ⁇ 0.80 H P .
- L can be ⁇ 4.00 H P , such as ⁇ 2.00 H P , ⁇ 1.33 H P , or ⁇ 1.00 H P .
- the thread lead, L defines the linear distance along a longitudinal axis of the engagement post 150 that is covered by one complete rotation of the post 150 .
- L can also be within a range between and including any of the values of L described above.
- L can be ⁇ 0.50 H P and ⁇ 4.00 H P , such as ⁇ 0.50 H P and ⁇ 2.00 H P , ⁇ 0.50 H P and ⁇ 1.33 H P , or ⁇ 0.50 H P and ⁇ 1.00 H P .
- L can be ⁇ 0.57 H P and ⁇ 4.00 H P , such as ⁇ 0.57 H P and ⁇ 2.00 H P , ⁇ 0.57 H P and ⁇ 1.33 H P , or ⁇ 0.57 H P and ⁇ 1.00 H P .
- L can be ⁇ 0.66 H P and ⁇ 4.00 H P , such as ⁇ 0.66 H P and ⁇ 2.00 H P , ⁇ 0.66 H P and ⁇ 1.33 H P , or ⁇ 0.66 H P and ⁇ 1.00 H P .
- L can also be ⁇ 0.80 H P and ⁇ 4.00 H P , such as ⁇ 0.80 H P and ⁇ 2.00 H P , ⁇ 0.80 H P and ⁇ 1.33 H P , or ⁇ 0.80 H P and ⁇ 1.00 H P .
- L can be ⁇ 0.50 H P and ⁇ 0.80 H P , such as ⁇ 0.50 H P and ⁇ 0.66 H P , or ⁇ 0.5 H P and ⁇ 0.57 H P .
- L can be ⁇ 4.00 H P and ⁇ 1.00 H P , such as ⁇ 4.00 H P and ⁇ 1.33 H P , or ⁇ 4.00 H P and ⁇ 2.00 H P .
- FIG. 4 also shows that the button 130 can include a guide post 160 extending from the distal end 154 of the engagement post 150 .
- the guide post 160 can facilitate insertion of the button 130 into the back-up pad 102 during assembly.
- FIG. 5 illustrates another aspect of a button 500 that can be used to engage an abrasive article to a back-up pad.
- the button 500 can include a body that has a generally disc-shaped lower plate 502 .
- a twisted hub 504 can extend from the disc-shaped lower plate 502 .
- the twisted hub 504 can include a proximal end 506 and a distal end 508 .
- a threaded engagement post 510 can extend from the distal end of the hub 504 .
- a guide post 512 can extend from the engagement post 510 .
- the twisted hub 504 is twisted along a height of the hub 504 so that the distal end 506 of the hub 504 is rotated with respect to a proximal end 506 of the hub by an angle, ⁇ .
- ⁇ can be ⁇ 5.0°, such as ⁇ 6.0°, ⁇ 7.0°, ⁇ 8.0°, ⁇ 9.0°, or ⁇ 10.0°.
- ⁇ can be ⁇ 30°, such as ⁇ 25°, ⁇ 20°, ⁇ 15°, or ⁇ 12.5°.
- ⁇ can be within a range between and including and of the values of ⁇ described herein.
- ⁇ can be ⁇ 5.0°and ⁇ 30°, such as ⁇ 5.0°and ⁇ 25°, ⁇ 5.0°and ⁇ 20°, ⁇ 5.0°and ⁇ 15°, or ⁇ 5.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 6.0°and ⁇ 30°, such as ⁇ 6.0°and ⁇ 25°, ⁇ 6.0°and ⁇ 20°, ⁇ 6.0°and ⁇ 15°, or ⁇ 6.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 7.0°and ⁇ 30°, such as ⁇ 7.0°and ⁇ 25°, ⁇ 7.0°and ⁇ 20°, ⁇ 7.0°and ⁇ 15°, or ⁇ 7.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 8.0°and ⁇ 30°, such as ⁇ 8.0°and ⁇ 25°, ⁇ 8.0°and ⁇ 20°, ⁇ 8.0°and ⁇ 15°, or ⁇ 8.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 9.0°and ⁇ 30°, such as ⁇ 9.0°and ⁇ 25°, ⁇ 9.0°and ⁇ 20°, ⁇ 9.0°and ⁇ 15°, or ⁇ 9.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 10.0°and ⁇ 30°, such as ⁇ 10.0°and ⁇ 25°, ⁇ 10.0°and ⁇ 20°, ⁇ 10.0°and ⁇ 15°, or ⁇ 10.0°and ⁇ 12.5°.
- the hub 504 is configured to impart a force, e.g., a twisting or rotational force, on an abrasive article installed on the hub 504 during use in order to cause the abrasive article to rotate over an angle, A, with respect to the hub 504 and to move linearly toward the lower plate 502 .
- a force e.g., a twisting or rotational force
- multiple abrasive articles can be installed over the hub 504 to create a stack of like, or different, abrasive articles.
- the twisting of the abrasive articles, and liner motion associated therewith, can cause the abrasive articles to tighten against the lower plate.
- the angle of rotation, A can be ⁇ 5°, such as ⁇ 4°, ⁇ 3°, ⁇ 2°, or ⁇ 1°. Further, A can be ⁇ 0.1°, such as ⁇ 0.25°, ⁇ 0.5°, or ⁇ 0.75°. A can also be within a range between and including any of the values of A described herein.
- A can be ⁇ 5°and ⁇ 0.1°, such as ⁇ 5°and ⁇ 0.25°, ⁇ 5°and ⁇ 0.5°, or ⁇ 5°and ⁇ 0.75°.
- A can be ⁇ 4°and ⁇ 0.1°, such as ⁇ 4°and ⁇ 0.25°, ⁇ 4°and ⁇ 0.5°, or ⁇ 4°and ⁇ 0.75°.
- A can be ⁇ 3°and ⁇ 0.1°, such as ⁇ 3°and ⁇ 0.25°, ⁇ 3°and ⁇ 0.5°, or ⁇ 3°and ⁇ 0.75°.
- A can be ⁇ 2°and ⁇ 0.1°, such as ⁇ 2°and ⁇ 0.25°, ⁇ 2°and ⁇ 0.5°, or ⁇ 2°and ⁇ 0.75°.
- A can be ⁇ 1°and ⁇ 0.1°, such as ⁇ 1°and ⁇ 0.25°, ⁇ 1°and ⁇ 0.5°, or ⁇ 1°and ⁇ 0.75°.
- the button 504 can include an overall height, H BA , and D can be ⁇ 0.25% H BA , such as ⁇ 0.5% H BA , 0.75% H BA , or 1.0% H BA . Further, D can be ⁇ 5.0% H BA , such as ⁇ 4.5% H BA , ⁇ 4.0% H BA , ⁇ 3.5% H BA , ⁇ 3.0% H BA , ⁇ 2.5% H BA , or ⁇ 2.0% H BA . D can also be within a range between and including any of the values of D described herein.
- D can be ⁇ 0.25% H BA and ⁇ 5.0% H BA , such as ⁇ 0.25% H BA and ⁇ 4.5% H BA , ⁇ 0.25% H BA and ⁇ 4.0% H BA , ⁇ 0.25% H BA and ⁇ 3.5% H BA , ⁇ 0.25% H BA and ⁇ 3.0% H BA , ⁇ 0.25% H BA and ⁇ 2.5% H BA , or ⁇ 0.25% H BA and ⁇ 2.0% H BA .
- D can be ⁇ 0.5% H BA and ⁇ 5.0% H BA , such as ⁇ 0.5% H BA and ⁇ 4.5% H BA , ⁇ 0.5% H BA and ⁇ 4.0% H BA , ⁇ 0.5% H BA and ⁇ 3.5% H BA , ⁇ 0.5% H BA and ⁇ 3.0% H BA , ⁇ 0.5% H BA and ⁇ 2.5% H BA , or ⁇ 0.5% H BA and ⁇ 2.0% H BA .
- H BA and ⁇ 5.0% H BA can be ⁇ 0.75% H BA and ⁇ 5.0% H BA , such as ⁇ 0.75% H BA and ⁇ 4.5% H BA , ⁇ 0.75% H BA and ⁇ 4.0% H BA , ⁇ 0.75% H BA and ⁇ 3.5% H BA , ⁇ 0.75% H BA and ⁇ 3.0% H BA , ⁇ 0.75% H BA and ⁇ 2.5% H BA , or ⁇ 0.75% H BA and ⁇ 2.0% H BA .
- D can be ⁇ 1.0% H BA and ⁇ 5.0% H BA , such as ⁇ 1.0% H BA and ⁇ 4.5% H BA , ⁇ 1.0% H BA and ⁇ 4.0% H BA , ⁇ 1.0% H BA and ⁇ 3.5% H BA , ⁇ 1.0% H BA and ⁇ 3.0% H BA , ⁇ 1.0% H BA and ⁇ 2.5% H BA , or ⁇ 1.0% H BA and ⁇ 2.0% H BA .
- the button 600 can include a body 602 .
- the body 602 can include a lower plate 604 .
- a hub 610 can extend from the lower plate 604 .
- the hub 610 can include a center portion 612 and a plurality of fins 614 can extend radially outward from the center portion 612 of the hub 610 .
- Each fin 614 can include a proximal end 616 and a distal end 618 .
- the proximal end 616 of each fin 614 can extend from and be attached to (or integrally formed with) the lower plate 604 .
- the fins 614 are configured to extend at least partially through an abrasive article installed on the hub 610 and to prevent the abrasive article from rotating relative to the hub 610 .
- Each fin 614 is integrally formed with, or rigidly connected to, the lower plate 604 and can transmit a torque from the lower plate directly to an abrasive article installed over the fins 614 so that as the lower plate 604 rotates the abrasive article rotates therewith.
- an abrasive article can be formed with an opening at or near a center of the abrasive article and the opening can be sized and shaped to fit over the hub 610 .
- FIG. 6 further illustrates that an engagement post 620 can extend from the hub 610 , e.g., from a distal end 618 of the hub 610 and fins 614 .
- the engagement post 620 can include a proximal end 622 and a distal end 624 .
- the engagement post 620 can also include at least one helical thread 626 that can extend along a height of the post 620 from the proximal end 622 and the distal end 624 .
- a guide post 630 can extend from the distal end 624 of the engagement post 620 .
- FIG. 6 also indicates that each fin 614 can include at least one post 632 extending from the distal end 618 of each fin 614 .
- the button 600 can also include an upper plate 640 formed with a central bore 642 that is configured to fit over the guide post 630 and the engagement post 620 .
- the upper plate 640 can also include a plurality of lateral bores (not shown) and lateral bore can be configured to align with a respect post 632 on each fin 614 .
- the upper plate 640 is configured to be installed over the posts 632 such that each lateral bore receives and engages a respective post 632 , e.g., in a snap fit.
- the upper plate 640 is configured to be installed between an abrasive article and a back-up pad.
- the upper plate 640 is configured to compress the abrasive article against the lower plate 604 when the engagement post 620 is threadably engaged with the back-up pad.
- the hub 610 can include at least three fins, at least four fins, at least five fins, at least six fins, at least seven fins, or at least eight fins.
- each fin 614 can be twisted along a height of the fin 614 so that the distal end 618 of the fin is rotated with respect to the proximal end 616 of the fin by an angle, ⁇ , and ⁇ can be ⁇ 5.0°, such as ⁇ 6.0°, ⁇ 7.0°, ⁇ 8.0°, ⁇ 9.0°, or ⁇ 10.0°.
- ⁇ can be ⁇ 30°, such as ⁇ 25°, ⁇ 20°, ⁇ 15°, or ⁇ 12.5°.
- ⁇ can be within a range between and including and of the values of ⁇ described herein.
- ⁇ can be ⁇ 5.0°and ⁇ 30°, such as ⁇ 5.0°and ⁇ 25°, ⁇ 5.0°and ⁇ 20°, ⁇ 5.0°and ⁇ 15°, or ⁇ 5.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 6.0°and ⁇ 30°, such as ⁇ 6.0°and ⁇ 25°, ⁇ 6.0°and ⁇ 20°, ⁇ 6.0°and ⁇ 15°, or ⁇ 6.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 7.0°and ⁇ 30°, such as ⁇ 7.0°and ⁇ 25°, ⁇ 7.0°and ⁇ 20°, ⁇ 7.0°and ⁇ 15°, or ⁇ 7.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 8.0°and ⁇ 30°, such as ⁇ 8.0°and ⁇ 25°, ⁇ 8.0°and ⁇ 20°, ⁇ 8.0°and ⁇ 15°, or ⁇ 8.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 9.0°and ⁇ 30°, such as ⁇ 9.0°and ⁇ 25°, ⁇ 9.0°and ⁇ 20°, ⁇ 9.0°and ⁇ 15°, or ⁇ 9.0°and ⁇ 12.5°.
- ⁇ can be ⁇ 10.0°and ⁇ 30°, such as ⁇ 10.0°and ⁇ 25°, ⁇ 10.0°and ⁇ 20°, ⁇ 10.0°and ⁇ 15°, or ⁇ 10.0°and ⁇ 12.5°.
- FIG. 8 illustrates a particular aspect of a lower plate, designated 800 , that can be used with any of the buttons described herein.
- the lower plate 800 can include a series of regularly spaced undulations 802 extending from the lower plate 800 in the same direction that a hub (not shown) would extend from the lower plate 800 or toward the hub (not shown).
- Each undulation 802 can include an arch shape having a peak 804 and a base 806 .
- the peak 804 of each arch can be spaced from the base 806 of each arch at a distance, DP.
- H BA , D P When used as part of a button that includes an overall height, H BA , D P , and wherein D P can be ⁇ 0.25% H BA , such as ⁇ 0.5% H BA , 0.75% H BA , or 1.0% H BA . Further, D P can be ⁇ 5.0% H BA , such as ⁇ 4.5% H BA , ⁇ 4.0% H BA , ⁇ 3.5% H BA , ⁇ 3.0% H BA , ⁇ 2.5% H BA , or ⁇ 2.0% H BA . In another aspect, D P can be within a range between and including any of the values associated with D P herein.
- DP can be ⁇ 0.25% H BA and ⁇ 5.0% H BA , such as ⁇ 0.25% H BA and ⁇ 4.5% H BA , ⁇ 0.25% H BA and ⁇ 4.0% H BA , ⁇ 0.25% H BA and ⁇ 3.5% H BA , ⁇ 0.25% H BA and ⁇ 3.0% H BA , ⁇ 0.25% H BA and ⁇ 2.5% H BA , or ⁇ 0.25% H BA and ⁇ 2.0% H BA .
- D P can be ⁇ 0.5% H BA and ⁇ 5.0% H BA , such as ⁇ 0.5% H BA and ⁇ 4.5% H BA , ⁇ 0.5% H BA and ⁇ 4.0% H BA , ⁇ 0.5% H BA and ⁇ 3.5% H BA , ⁇ 0.5% H BA and ⁇ 3.0% H BA , ⁇ 0.5% H BA and ⁇ 2.5% H BA , or ⁇ 0.5% H BA and ⁇ 2.0% H BA .
- D P can be ⁇ 0.75% H BA and ⁇ 5.0% H BA , such as ⁇ 0.75% H BA and ⁇ 4.5% H BA , ⁇ 0.75% H BA and ⁇ 4.0% H BA , ⁇ 0.75% H BA and ⁇ 3.5% H BA , ⁇ 0.75% H BA and ⁇ 3.0% H BA , ⁇ 0.75% H BA and ⁇ 2.5% H BA , or ⁇ 0.75% H BA and ⁇ 2.0% H BA .
- D P can be ⁇ 1.0% H BA and ⁇ 5.0% H BA , such as ⁇ 1.0% H BA and ⁇ 4.5% H BA , ⁇ 1.0% H BA and ⁇ 4.0% H BA , ⁇ 1.0% H BA and ⁇ 3.5% H BA , ⁇ 1.0% H BA and ⁇ 3.0% H BA , ⁇ 1.0% H BA and ⁇ 2.5% H BA , or ⁇ 0.25% H BA and ⁇ 2.0% H BA .
- the undulations 802 are configured to impart pleats in at least one abrasive article installed on a hub extending from the lower plate 800 on a button when the button is engaged with a back-up pad.
- FIG. 9 illustrates another exemplary abrasive article 900 .
- the abrasive article 900 includes a body 902 formed with a bore 904 at or near a center of the abrasive article 900 .
- the bore 904 can be sized and shaped to fit over a hub that is formed with multiple fins, e.g., the hub shown in FIG. 6 and FIG. 7 .
- the bore 904 can include a central opening 906 with multiple branches 908 extending radially outward therefrom.
- the bore 904 can include three branches, four branches, five branches, six branches, seven branches, eight branches, etc.
- FIG. 10 depicts yet another exemplary abrasive article 1000 .
- the body 1002 of the abrasive article 1000 may be cut with multiple slits 1004 that correspond to the number of fins. Accordingly, when the fins are fitted through the slits, the material of the abrasive article 1000 can expand around the fins to accommodate the fins.
- the flaps 1006 created between adjacent slits 1004 can bend along a central axis in the same direction that a button having fins is inserted through the abrasive article 1000 (e.g., into the page on which FIG. 10 is illustrated).
- the button for attaching an abrasive article to a back-up pad provides a relatively user friendly way to quickly attach an abrasive article to a back-up pad. Further, as easily as the abrasive article is attached, it can be just as easily detached.
- the button includes an engagement post having a thread lead that allows the engagement post to be engaged with a back-up pad with fewer than 2 revolutions of the button and abrasive tool.
- An abrasive article e.g., a non-woven abrasive article
- the back-up pad can be engaged with a rotating tool holder, such as a drill chuck.
- the button may be disengaged from the back-up pad, removed from the abrasive article, installed in a new abrasive article, and re-engaged with the back-up pad for further use.
- the button can be removed from the abrasive article, the abrasive article can be flipped over, the button can be re-installed in the abrasive article, and the button can be re-engaged with the back-up pad for further use of the abrasive article.
- a previously un-used side of an abrasive article can be used and full use may be made of the abrasive article—unlike abrasive articles having buttons that are glued or otherwise fixed thereto.
- the hub of a button may be formed with a twist and during use the twist may cause the abrasive article installed thereon to move to a lower plate and further increase the gripping force on the abrasive article.
- Multiple abrasive articles having the same or different abrasive characteristics can be installed on a single hub in any stack order desired by a user. After use, the abrasive articles can be re-stacked in any other order for further use.
- a lower plate of a button can be formed with undulations and these undulations can impart pleats on the working surface of the abrasive article place on the button.
- the button may be formed with fins and the abrasive article may be formed with slits corresponding to the number of fins in a relatively simple and efficient cutting operating that only cuts the abrasive article without removing any of the abrasive article.
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- Engineering & Computer Science (AREA)
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Abstract
Description
- The present disclosure is directed to an abrasive article and to a button for attaching an abrasive article to a back-up pad.
- Abrasive articles can be quite useful for smoothing surfaces, polishing surfaces, removing material from surfaces, for cleaning surfaces, etc. Certain types of abrasive articles are configured in the shape of a wheel. During use, these abrasive wheels are rotated to create a moving surface on the abrasive wheel that can be placed in contact with another surface in order to alter a characteristic of that surface. In order to rotate an abrasive wheel, the abrasive wheel is typically mechanically coupled to a shaft of a motor via a tool holder, e.g., a chuck, that can be tightened to engage a portion of the abrasive wheel.
- In response to changes in the abrasives industry, new ways to connect abrasive articles may be desirable.
- Embodiments are illustrated by way of example and are not limited in the accompanying figures.
-
FIG. 1 includes a view of an abrasive article assembly in accordance with a particular embodiment. -
FIG. 2 includes a partially exploded view of an abrasive article assembly in accordance with a particular embodiment. -
FIG. 3 includes a fully exploded view of an abrasive article assembly in accordance with a particular embodiment. -
FIG. 4 includes a view of a button for attaching an abrasive article to a back-up pad in accordance with a particular embodiment. -
FIG. 5 includes a plan view of a button for attaching an abrasive article to a back-up pad in accordance with another particular embodiment. -
FIG. 6 includes a view of a button for attaching an abrasive article to a back-up pad in accordance with yet another particular embodiment. -
FIG. 7 includes a plan view of a button for attaching an abrasive article to a back-up pad in accordance with yet another particular embodiment. -
FIG. 8 includes a view of a lower plate for a button for attaching an abrasive article to a back-up pad in accordance with a particular embodiment. -
FIG. 9 includes a view of an abrasive article in accordance with a particular embodiment. -
FIG. 10 includes a view of an abrasive article in accordance with a particular embodiment. - Skilled artisans appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures can be exaggerated relative to other elements to help to improve understanding of embodiments of the invention. The use of the same reference symbols in different drawings indicates similar or identical items.
- The following description in combination with the figures is provided to assist in understanding the teachings disclosed herein. The following discussion will focus on specific implementations and embodiments of the teachings. This focus is provided to assist in describing the teachings and should not be interpreted as a limitation on the scope or applicability of the teachings. As used herein, the terms “comprises,” “comprising,” “includes,” “including,” “has,” “having,” or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of features is not necessarily limited only to those features but can include other features not expressly listed or other features that are inherent to such process, method, article, or apparatus. Further, unless expressly stated to the contrary, “or” refers to an inclusive-or and not to an exclusive-or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).
- The use of “a” or “an” is employed to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the embodiments of the disclosure. This description should be read to include one or at least one and the singular also includes the plural, or vice versa, unless it is clear that it is meant otherwise. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The materials, methods, and examples are illustrative only and not intended to be limiting.
- Referring initially to
FIG. 1 , an abrasive article assembly is illustrated and is generally designated 100. As illustrated, theabrasive article assembly 100 can include a back-uppad 102 and anabrasive article 104 coupled to the back-uppad 102. The back-up pad 102 can include ahousing 110 that defines aproximal end 112 and adistal end 114. Thehousing 110 can include a threaded bore (not shown) that extends into thehousing 110 from theproximal end 112. The threaded bore can be sized and shaped to receive a threaded post of a button, described in detail below. - A
shank 116 can extend from thedistal end 114 of thehousing 110. Theshank 116 can be received and clamped within a drill chuck (not shown) or some other rotating tool. Thus, as the drill chuck rotates, theshank 116 will rotate, and can cause the entireabrasive article assembly 100 to rotate. The rotatingabrasive article assembly 100 can be moved across a surface to be finished in order to abrade the surface, to smooth the surface, to polish the surface, to clean the surface, etc. -
FIG. 1 indicates that theabrasive article 104 can include anupper surface 120, alower surface 122, and an outerperipheral surface 124. In a particular aspect, theabrasive article 104 can be a non-wovenabrasive article 104. - In one non-limiting, exemplary embodiment the non-woven
abrasive article 104 can include a support, at least one polymeric binder, and abrasive particles. In one aspect, the support can include one or more nonwoven layers. Each nonwoven layer can include a plurality of fibers. The fibers can be bonded to each other by a polymeric binder, such as one derived from a latex. The fibers can include natural fibers, inorganic fibers, such as fiberglass, synthetic fibers, such as polyester fibers, polyamide fibers, or other suitable synthetic fibers, or any combination thereof. - The abrasive particles can have a Mohs hardness of at least about 8.0, such as at least about 8.5, even at least about 9.0. In particular, the abrasive particles 108 can include superabrasive particles, such as diamond, cubic boron nitride, boron carbide, silicon carbide, or any combination thereof. The abrasive particles can have a size of between about 10 microns and about 1000 microns, such as between about 50 microns and about 500 microns, particularly between about 100 microns and about 200 microns.
- The one or more polymeric binders can include a curable polymeric binder. The curable polymeric binder can include a polyurethane resin, a phenoxy resin, polyester resin, or any combination thereof. Further, the curable polymeric binder can include a blocked resin. Polymeric binder can be a strong and flexible polymeric binder in order to hold the support together during abrading while allowing the support to be flexible enough to conform to the shape of the work piece. In a particular embodiment, the polymeric binder can be located between the fibers and the abrasive particles.
- In another aspect, the polymeric binder can include another polymeric binder, such as a phenolic resin, an epoxy resin, a formaldehyde-urea resin, or any combination thereof. The other polymeric binder can include a binder that bonds without significant curing and this binder can be used bond the abrasive particles to the support and to permit additionally processing of the abrasive article.
- In an embodiment, the one or more polymeric binders can be formed from binder formulations that can further include components such as dispersed filler, solvents, plasticizers, chain transfer agents, catalysts, stabilizers, dispersants, curing agents, reaction mediators, or agents for influencing the fluidity of the dispersion. In addition to the above constituents, other components can also be added to the binder formulation, including, for example, anti-static agents, such as graphite, carbon black, and the like; suspending agents, such as fumed silica; anti-loading agents, such as metal stearate, including zinc, calcium, or magnesium stearate; lubricants such as wax; wetting agents; dyes; fillers; viscosity modifiers; defoamers; or any combination thereof.
- In one particular embodiment, the non-woven
abrasive article 104 can have an open structure. Specifically, the open structure can include voids located between the fibers. The open structure can be at least about 25% open volume, such as at least about 40% open volume, such as at least about 55% open volume. Additionally, the open structure can be not greater than about 99% open volume, such as not greater than about 95% open volume, even not greater than about 90% open volume. - In an embodiment, the non-woven
abrasive article 104 can have a hardness of 20 kgf/25% compression to 90 kgf/25% compression, such as 30 kgf/25% compression to 80 kgf/25% compression, even 40 kgf/25% compression to 70 kgf/25% compression as measured by applying a force with a 25.4 mm semi-spherical probe to compress the abrasive article by 25% along the thickness direction. In a particular embodiment, the hardness can be 50 to 60 kgf/25% compression. -
FIG. 2 andFIG. 3 indicate that theabrasive article 104 can be removed from the back-uppad 102. Further,FIG. 2 andFIG. 3 indicate that theabrasive article 104 can include acentral bore 126 extending through theabrasive article 104 along acentral axis 128. Theabrasive article assembly 100 can include abutton 130 that can be used to connect theabrasive article 104 to the back-uppad 102. Specifically, a threaded post that extends from thebutton 130, and is described in detail below, can fit into and engage the threaded bore (not shown) formed in thehousing 110 of the back-uppad 102. -
FIG. 4 illustrates details of thebutton 130. As depicted, an embodiment of thebutton 130 can include alower plate 132. Thelower plate 132 can be generally flat and disk-shaped. Thelower plate 132 can include an outer diameter, OLP. Theabrasive article 104 can include an outer diameter OAA. OLP can be ≦50% OAA, such as ≦45% OAA, ≦40% OAA, ≦35% OAA, or ≦30% OAA. Further, OLP can be ≧10% OAA, such as ≧15% OAA, ≧20% OAA, or ≧25% OAA. It will be appreciated that the OLP can be within a range between and including any of the percentages noted above relative to the OAA. - For example, OLP can be ≦50% OAA and ≧10% OAA, such as ≦50% OAA and ≧15% OAA, ≦50% OAA and ≧20% OAA, or ≦50% OAA and ≧25% OAA. In another aspect, OLP can be ≦45% OAA and ≧10% OAA, such as ≦45% OAA and ≧15% OAA, ≦45% OAA and ≧20% OAA, or ≦45% OAA and ≧25% OAA. OLP can be ≦40% OAA and ≧10% OAA, such as ≦40% OAA and ≧15% OAA, ≦40% OAA and ≧20% OAA, or ≦40% OAA and ≧25% OAA. OLP can be ≦35% OAA and ≧10% OAA, such as ≦35% OAA and ≧15% OAA, ≦35% OAA and ≧20% OAA, or ≦35% OAA and ≧25% OAA. OLPcan be ≦30% OAA and ≧10% OAA, such as ≦30% OAA and ≧15% OAA, ≦30% OAA and ≧20% OAA, or ≦30% OAA and ≧25% OAA.
- A
hub 134 can extend from thelower plate 132. Thehub 134 can include aproximal end 136 and adistal end 138. In one aspect, thehub 134 is configured to fit into and engage theabrasive article 104 when theabrasive article 104 is installed over thehub 134 such that thehub 134 fits into the similarly sized and shapedcentral bore 126 of theabrasive article 104. Thehub 134 is configured to engage theabrasive article 104, e.g., the inner wall of thecentral bore 126, at least partially along a height of thehub 124 in order to engage theabrasive article 104 and to prevent theabrasive article 104 from rotating relative to thehub 134. - When the
hub 134 is disengaged from the back-uppad 102 and removed from theabrasive article 104, thehub 134 can include a height, HH, and thebore 126 within theabrasive article 104 can include a height, HB. In a particular aspect, HH≦0.99 HB. Moreover, HH≦0.98 HB, such as ≦0.97 HB, ≦0.96 HB, ≦0.95 HB, ≦0.94 HB, ≦0.93 HB, ≦0.92 HB, ≦0.91 HB, or ≦0.90 HB. In another aspect, HH≧0.80 HB, such as ≧0.81 HB, ≧0.82 HB, ≧0.83 HB, ≧0.84 HB, or ≧0.85 HB. HH can be within a range between and including any of the values of HH described herein. - For example, HH can be ≦0.99 HBand ≧0.80 HB, such as ≦0.99 HBand ≧0.81 HB, ≦0.99 HB and ≧0.82 HB, ≦0.99 HB and ≧0.83 HB, ≦0.99 HB and ≧0.84 HB, or ≦0.99 HB and ≧0.85 HB. HH can be ≦0.98 HB and ≧0.80 HB, such as ≦0.98 HB and ≧0.81 HB, ≦0.98 HB and ≧0.82 HB, ≦0.98 HB and ≧0.83 HB, ≦0.98 HB and ≧0.84 HB, or ≦0.98 HB and ≧0.85 HB.
- In another aspect, HH can be ≦0.97 HB and ≧0.80 HB, such as ≦0.97 HB and ≧0.81 HB, ≦0.97 HB and ≧0.82 HB, ≦0.97 HB and ≧0.83 HB, ≦0.97 HB and ≧0.84 HB, or ≦0.97 HB and ≧0.85 HB. HH can be ≦0.96 HB and ≧0.80 HB, such as ≦0.96 HB and ≧0.81 HB, ≦0.96 HB and ≧0.82 HB, ≦0.96 HB and ≧0.83 HB, ≦0.96 HB and ≧0.84 HB, or ≦0.96 HB and ≧0.85 HB. HH can be ≦0.95 HB and ≧0.80 HB, such as ≦0.95 HB and ≧0.81 HB, ≦0.95 HB and ≧0.82 HB , ≦0.95 HB and ≧0.83 HB , ≦0.95 HB and ≧0.84 HB, or ≦0.95 HB and ≧0.85 HB. HH can be ≦0.94 HB and ≧0.80 HB, such as ≦0.94 HB and ≧0.81 HB, ≦0.94 HB and ≧0.82 HB, ≦0.94 HB and ≧0.83 HB, ≦0.94 HB and ≧0.84 HB, or ≦0.94 HB and ≧0.85 HB.
- HH can also be ≦0.93 HB and ≧0.80 HB, such as ≦0.93 HB and ≧0.81 HB, ≦0.93 HB and ≧0.82 HB, ≦0.93 HB and ≧0.83 HB, ≦0.93 HB and ≧0.84 HB, or ≦0.93 HB and ≧0.85 HB. HH can be ≦0.92 HB and ≧0.80 HB, such as ≦0.92 HB and ≧0.81 HB, ≦0.92 HB and ≧0.82 HB, ≦0.92 HB and ≧0.83 HB, ≦0.92 HB and ≧0.84 HB, or ≦0.92 HB and ≧0.85 HB. HH can be ≦0.91 HB and ≧0.80 HB, such as ≦0.91 HB and ≧0.81 HB, ≦0.91 HB and ≧0.82 HB, ≦0.91 HB and ≧0.83 HB, ≦0.91 HB and ≧0.84 HB, or ≦0.91 HB and ≧0.85 HB. HH can be ≦0.90 HB and ≧0.80 HB, such as ≦0.90 HB and ≧0.81 HB, ≦0.90 HB and ≧0.82 HB, ≦0.90 HB and ≧0.83 HB, ≦0.90 HB and ≧0.84 HB, or ≦0.90 HB and ≧0.85 HB.
- Since HH can be less than HB before the
button 130 is installed through theabrasive article 104 and engaged with the back-uppad 102, when thebutton 130 is engaged with the back-uppad 102 and theabrasive article 104 is captured between thelower plate 132 and theproximal end 112 of the back-uppad 102, theabrasive article 104 can be compressed between thelower plate 132 of thebutton 130 and theproximal end 112 of the back-uppad 102 such that the height of the bore when engaged, HBE, is equal to HH. - In a particular aspect, the
button 130 can be configured to apply a compressive force on the abrasive article, CF, wherein CF can be ≧5 lbs, such as ≧6 lbs, ≧7 lbs, ≧8 lbs, ≧9 lbs, or ≧10 lbs. Further, CF can be ≦50 lbs, such as ≦40 lbs, ≦30 lbs, ≦20 lbs, or ≦15 lbs. Moreover, CF can be within a range between and including any of the values of CF described herein. - For example, CF can be ≧5 lbs and ≦50 lbs, such as ≧5 lbs and ≦40 lbs, ≧5 lbs and ≦30 lbs, ≧5 lbs and ≦20 lbs, or ≧5 lbs and ≦15 lbs. CF can also be ≧6 lbs and ≦50 lbs, such as ≧6 lbs and ≦40 lbs, ≧6 lbs and ≦30 lbs, ≧6 lbs and ≦20 lbs, or ≧6 lbs and ≦15 lbs. CF can be ≧7 lbs and ≦50 lbs, such as ≧7 lbs and ≦40 lbs, ≧7 lbs and ≦30 lbs, ≧7 lbs and ≦20 lbs, or ≧7 lbs and ≦15 lbs. CF can be ≧8 lbs and ≦50 lbs, such as ≧8 lbs and ≦40 lbs, ≧8 lbs and ≦30 lbs, ≧8 lbs and ≦20 lbs, or ≧8 lbs and ≦15 lbs. CF can be ≧9 lbs and ≦50 lbs, such as ≧9 lbs and ≦40 lbs, ≧9 lbs and ≦30 lbs, ≧9 lbs and ≦20 lbs, or ≧9 lbs and ≦15 lbs. CF can be ≧10 lbs and ≦50 lbs, such as ≧10 lbs and ≦40 lbs, ≧10 lbs and ≦30 lbs, ≧10 lbs and ≦20 lbs, or ≧10 lbs and ≦15 lbs.
- The
hub 134 can have a cross-sectional shape, or an end shape, perpendicular to thecentral axis 128 that includes a convex polygon having at least three vertices. For example, the cross-sectional shape of the hub can be selected from the group of shapes including: triangle, square, pentagon, and hexagon. In another aspect, thehub 134 can have a cross-sectional shape, or end shape, perpendicular to thecentral axis 128 that includes a concave polygon having at least six vertices. In this aspect, the cross-sectional shape of thehub 134 can be selected from the group of shapes including: concave hexagon, concave octagon, concave decagon, and concave dodecagon. In still another aspect, thehub 134 can have a cross-sectional shape, or end shaped, perpendicular to thecentral axis 128 that includes a regular star polygon having at least ten vertices. The at least ten vertices can be selected from the group that includes: 10, 14, 18, 22, and 26 vertices. - In another aspect, the
distal end 138 of thehub 134 includes a surface area, AHDE, and theupper surface 120 of theabrasive article 104 can also include a surface area AUSA. In this aspect, AHDE can be ≦10.0% AUSA, such as ≦7.5% AUSA, ≦5.0% AUSA, ≦4.0% AUSA, or ≦3.0% AUSA. Further, AHDE can be ≧0.5% AUSA, such as ≧0.75% AUSA, ≧1.0% AUSA, ≧1.25% AUSA, ≧1.5% AUSA, ≧1.75% AUSA, ≧2.0% AUSA, or ≧2.5% AUSA. AHDE can be within a range between and including any of the values of AHDE described herein. - For example, AHDE can be ≦10.0% AUSA and ≧0.5% AUSA, such as ≦10.0% AUSA and ≧0.75% AUSA, ≦10.0% AUSA and ≧1.0% AUSA, ≦10.0% AUSA and ≧1.5% AUSA, ≦10.0% AUSA and ≧2.0% AUSA, or ≦10.0% AUSA and ≧2.5% AUSA. AHDE can be ≦7.5% AUSA and ≧0.5% AUSA, such as ≦7.5% AUSA and ≧0.75% AUSA, ≦7.5% AUSA and ≧1.0% AUSA, ≦7.5% AUSA and ≧1.5% AUSA, ≦7.5% AUSA and ≧2.0% AUSA, or ≦7.5% AUSA and ≧2.5% AUSA. AHDE can be ≦5.0% AUSA and ≧0.5% AUSA, such as ≦5.0% AUSA and ≧0.75% AUSA, ≦5.0% AUSA and ≧1.0% AUSA, ≦5.0% AUSA and ≧1.5% AUSA, ≦5.0% AUSA and ≧2.0% AUSA, or ≦5.0% AUSA and ≧2.5% AUSA. AHDE can be ≦4.0% AUSA and ≧0.5% AUSA, such as ≦4.0% AUSA and ≧0.75% AUSA, ≦4.0% AUSA and ≧1.0% AUSA, ≦4.0% AUSA and ≧1.5% AUSA, ≦4.0% AUSA and ≧2.0% AUSA, or ≦4.0% AUSA and ≧2.5% AUSA. Moreover, AHDE can be ≦3.0% AUSA and ≧0.5% AUSA, such as ≦3.0% AUSA and ≧0.75% AUSA, ≦3.0% AUSA and ≧1.0% AUSA, ≦3.0% AUSA and ≧1.5% AUSA, ≦3.0% AUSA and ≧2.0% AUSA, or ≦3.0% AUSA and ≧2.5% AUSA.
- As further depicted in
FIG. 4 , thebutton 130 can also include a back-uppad engagement post 150 that can extend from thehub 134 longitudinally along thecentral axis 128. Theengagement post 150 can include a height, HP. Further, theengagement post 150 can include aproximal end 152 and adistal end 154 and at least onehelical thread 156 can extend outwardly along HP from theproximal end 152 of theengagement post 150 to thedistal end 154 of theengagement post 150. Thehelical thread 156 can include a thread lead, L. In a particular aspect, L can be ≧0.50 HP. L can also be ≧0.57 HP, such as ≧0.66 HP, ≧or ≧0.80 HP. In another aspect, L can be ≦4.00 HP, such as ≦2.00 HP, ≦1.33 HP, or ≦1.00 HP. It can be appreciated that the thread lead, L, defines the linear distance along a longitudinal axis of theengagement post 150 that is covered by one complete rotation of thepost 150. - As such, if L=0.50 HP, then it takes 2 rotations of the
engagement post 150 to fully engage thepost 150 with the back-uppad 102. L=0.57 HP corresponds to 1.75 rotations. L=0.66 HP corresponds to 1.5 rotations. L=0.80 HP corresponds to 1.25 rotations. L=4.00 HP corresponds to 0.25 rotations. L=2.00 HP corresponds to 0.50 rotations. L=1.33 HP corresponds to 0.75 rotations. L=1.00 HP corresponds to 1.00 rotations. - L can also be within a range between and including any of the values of L described above. For example, L can be ≧0.50 HP and ≦4.00 HP, such as ≧0.50 HP and ≦2.00 HP, ≧0.50 HP and ≦1.33 HP, or ≧0.50 HP and ≦1.00 HP. L can be ≧0.57 HP and ≦4.00 HP, such as ≧0.57 HP and ≦2.00 HP, ≧0.57 HP and ≦1.33 HP, or ≧0.57 HP and ≦1.00 HP. L can be ≧0.66 HP and ≦4.00 HP, such as ≧0.66 HP and ≦2.00 HP, ≧0.66 HP and ≦1.33 HP, or ≧0.66 HP and ≦1.00 HP. L can also be ≧0.80 HP and ≦4.00 HP, such as ≧0.80 HP and ≦2.00 HP, ≧0.80 HP and ≦1.33 HP, or ≧0.80 HP and ≦1.00 HP.
- In another aspect, L can be ≧0.50 HP and ≦0.80 HP, such as ≧0.50 HP and ≦0.66 HP, or ≧0.5 HP and ≦0.57 HP. In yet another aspect, L can be ≦4.00 HP and ≧1.00 HP, such as ≦4.00 HPand ≧1.33 HP, or ≦4.00 HP and ≧2.00 HP.
-
FIG. 4 also shows that thebutton 130 can include aguide post 160 extending from thedistal end 154 of theengagement post 150. Theguide post 160 can facilitate insertion of thebutton 130 into the back-uppad 102 during assembly. -
FIG. 5 illustrates another aspect of abutton 500 that can be used to engage an abrasive article to a back-up pad. In this aspect, thebutton 500 can include a body that has a generally disc-shapedlower plate 502. Atwisted hub 504 can extend from the disc-shapedlower plate 502. Thetwisted hub 504 can include aproximal end 506 and adistal end 508. A threadedengagement post 510 can extend from the distal end of thehub 504. Moreover, aguide post 512 can extend from theengagement post 510. - In this aspect, the
twisted hub 504 is twisted along a height of thehub 504 so that thedistal end 506 of thehub 504 is rotated with respect to aproximal end 506 of the hub by an angle, α. In a particular aspect, α can be ≧5.0°, such as ≧6.0°, ≧7.0°, ≧8.0°, ≧9.0°, or ≧10.0°. Further, α can be ≦30°, such as ≦25°, ≦20°, ≦15°, or ≦12.5°. In another aspect, α can be within a range between and including and of the values of α described herein. - For example, α can be ≧5.0°and ≦30°, such as ≧5.0°and ≦25°, ≧5.0°and ≦20°, ≧5.0°and ≦15°, or ≧5.0°and ≦12.5°. α can be ≧6.0°and ≦30°, such as ≧6.0°and ≦25°, ≧6.0°and ≦20°, ≧6.0°and ≦15°, or ≧6.0°and ≦12.5°. α can be ≧7.0°and ≦30°, such as ≧7.0°and ≦25°, ≧7.0°and ≦20°, ≧7.0°and ≦15°, or ≧7.0°and ≦12.5°. α can be ≧8.0°and ≦30°, such as ≧8.0°and ≦25°, ≧8.0°and ≦20°, ≧8.0°and ≦15°, or ≧8.0°and ≦12.5°. α can be ≧9.0°and ≦30°, such as ≧9.0°and ≦25°, ≧9.0°and ≦20°, ≧9.0°and ≦15°, or ≧9.0°and ≦12.5°. Moreover, α can be ≧10.0°and ≦30°, such as ≧10.0°and ≦25°, ≧10.0°and ≦20°, ≧10.0°and ≦15°, or ≧10.0°and ≦12.5°.
- Accordingly, the
hub 504 is configured to impart a force, e.g., a twisting or rotational force, on an abrasive article installed on thehub 504 during use in order to cause the abrasive article to rotate over an angle, A, with respect to thehub 504 and to move linearly toward thelower plate 502. It can be appreciated that multiple abrasive articles can be installed over thehub 504 to create a stack of like, or different, abrasive articles. The twisting of the abrasive articles, and liner motion associated therewith, can cause the abrasive articles to tighten against the lower plate. - In a particular aspect, the angle of rotation, A, can be ≦5°, such as ≦4°, ≦3°, ≦2°, or ≦1°. Further, A can be ≧0.1°, such as ≧0.25°, ≧0.5°, or ≧0.75°. A can also be within a range between and including any of the values of A described herein.
- For example, A can be ≦5°and ≧0.1°, such as ≦5°and ≧0.25°, ≦5°and ≧0.5°, or ≦5°and ≧0.75°. A can be ≦4°and ≧0.1°, such as ≦4°and ≧0.25°, ≦4°and ≧0.5°, or ≦4°and ≧0.75°. A can be ≦3°and ≧0.1°, such as ≦3°and ≧0.25°, ≦3°and ≧0.5°, or ≦3°and ≧0.75°. A can be ≦2°and ≧0.1°, such as ≦2°and ≧0.25°, ≦2°and ≧0.5°, or ≦2°and ≧0.75°. A can be ≦1°and ≧0.1°, such as ≦1°and ≧0.25°, ≦1°and ≧0.5°, or ≦1°and ≧0.75°.
- In a particular aspect, the
button 504 can include an overall height, HBA, and D can be ≧0.25% HBA, such as ≧0.5% HBA, 0.75% HBA, or 1.0% HBA. Further, D can be ≦5.0% HBA, such as ≦4.5% HBA, ≦4.0% HBA, ≦3.5% HBA, ≦3.0% HBA, ≦2.5% HBA, or ≦2.0% HBA. D can also be within a range between and including any of the values of D described herein. - For example, D can be ≧0.25% HBA and ≦5.0% HBA, such as ≧0.25% HBA and ≦4.5% HBA, ≧0.25% HBA and ≦4.0% HBA, ≧0.25% HBA and ≦3.5% HBA, ≧0.25% HBA and ≦3.0% HBA, ≧0.25% HBA and ≦2.5% HBA, or ≧0.25% HBA and ≦2.0% HBA. D can be ≧0.5% HBA and ≦5.0% HBA, such as ≧0.5% HBA and ≦4.5% HBA, ≧0.5% HBA and ≦4.0% HBA, ≧0.5% HBA and ≦3.5% HBA, ≧0.5% HBA and ≦3.0% HBA, ≧0.5% HBA and ≦2.5% HBA, or ≧0.5% HBA and ≦2.0% HBA. D can be ≧0.75% HBA and ≦5.0% HBA, such as ≧0.75% HBA and ≦4.5% HBA, ≧0.75% HBA and ≦4.0% HBA, ≧0.75% HBA and ≦3.5% HBA, ≧0.75% HBA and ≦3.0% HBA, ≧0.75% HBA and ≦2.5% HBA, or ≧0.75% HBA and ≦2.0% HBA. D can be ≧1.0% HBA and ≦5.0% HBA, such as ≧1.0% HBA and ≦4.5% HBA, ≧1.0% HBA and ≦4.0% HBA, ≧1.0% HBA and ≦3.5% HBA, ≧1.0% HBA and ≦3.0% HBA, ≧1.0% HBA and ≦2.5% HBA, or ≧1.0% HBA and ≦2.0% HBA.
- Referring now to
FIG. 6 , another aspect of a button for attaching an abrasive article to a back-up pad is illustrated and is generally designated 600. As indicated inFIG. 6 , thebutton 600 can include abody 602. Thebody 602 can include alower plate 604. Ahub 610 can extend from thelower plate 604. Thehub 610 can include acenter portion 612 and a plurality offins 614 can extend radially outward from thecenter portion 612 of thehub 610. Eachfin 614 can include aproximal end 616 and adistal end 618. Theproximal end 616 of eachfin 614 can extend from and be attached to (or integrally formed with) thelower plate 604. In this aspect, thefins 614 are configured to extend at least partially through an abrasive article installed on thehub 610 and to prevent the abrasive article from rotating relative to thehub 610. Eachfin 614 is integrally formed with, or rigidly connected to, thelower plate 604 and can transmit a torque from the lower plate directly to an abrasive article installed over thefins 614 so that as thelower plate 604 rotates the abrasive article rotates therewith. As described below, an abrasive article can be formed with an opening at or near a center of the abrasive article and the opening can be sized and shaped to fit over thehub 610. -
FIG. 6 further illustrates that anengagement post 620 can extend from thehub 610, e.g., from adistal end 618 of thehub 610 andfins 614. Theengagement post 620 can include aproximal end 622 and adistal end 624. Theengagement post 620 can also include at least onehelical thread 626 that can extend along a height of thepost 620 from theproximal end 622 and thedistal end 624. As illustrated, aguide post 630 can extend from thedistal end 624 of theengagement post 620. -
FIG. 6 also indicates that eachfin 614 can include at least onepost 632 extending from thedistal end 618 of eachfin 614. Thebutton 600 can also include anupper plate 640 formed with acentral bore 642 that is configured to fit over theguide post 630 and theengagement post 620. Theupper plate 640 can also include a plurality of lateral bores (not shown) and lateral bore can be configured to align with arespect post 632 on eachfin 614. Theupper plate 640 is configured to be installed over theposts 632 such that each lateral bore receives and engages arespective post 632, e.g., in a snap fit. Further, theupper plate 640 is configured to be installed between an abrasive article and a back-up pad. Theupper plate 640 is configured to compress the abrasive article against thelower plate 604 when theengagement post 620 is threadably engaged with the back-up pad. - In a particular aspect, the
hub 610 can include at least three fins, at least four fins, at least five fins, at least six fins, at least seven fins, or at least eight fins. Further, as best illustrated inFIG. 7 , eachfin 614 can be twisted along a height of thefin 614 so that thedistal end 618 of the fin is rotated with respect to theproximal end 616 of the fin by an angle, β, and βcan be ≧5.0°, such as ≧6.0°, ≧7.0°, ≧8.0°, ≧9.0°, or ≧10.0°. Further, βcan be ≦30°, such as ≦25°, ≦20°, ≦15°, or ≦12.5°. In another aspect, βcan be within a range between and including and of the values of α described herein. - For example, βcan be ≧5.0°and ≦30°, such as ≧5.0°and ≦25°, ≧5.0°and ≦20°, ≧5.0°and ≦15°, or ≧5.0°and ≦12.5°. βcan be ≧6.0°and ≦30°, such as ≧6.0°and ≦25°, ≧6.0°and ≦20°, ≧6.0°and ≦15°, or ≧6.0°and ≦12.5°. βcan be ≧7.0°and ≦30°, such as ≧7.0°and ≦25°, ≧7.0°and ≦20°, ≧7.0°and ≦15°, or ≧7.0°and ≦12.5°. βcan be ≧8.0°and ≦30°, such as ≧8.0°and ≦25°, ≧8.0°and ≦20°, ≧8.0°and ≦15°, or ≧8.0°and ≦12.5°. βcan be ≧9.0°and ≦30°, such as ≧9.0°and ≦25°, ≧9.0°and ≦20°, ≧9.0°and ≦15°, or ≧9.0°and ≦12.5°. Moreover, βcan be ≧10.0°and ≦30°, such as ≧10.0°and ≦25°, ≧10.0°and ≦20°, ≧10.0°and ≦15°, or ≧10.0°and ≦12.5°.
-
FIG. 8 illustrates a particular aspect of a lower plate, designated 800, that can be used with any of the buttons described herein. As depicted inFIG. 8 , thelower plate 800 can include a series of regularly spacedundulations 802 extending from thelower plate 800 in the same direction that a hub (not shown) would extend from thelower plate 800 or toward the hub (not shown). Eachundulation 802 can include an arch shape having apeak 804 and abase 806. Thepeak 804 of each arch can be spaced from thebase 806 of each arch at a distance, DP. - When used as part of a button that includes an overall height, HBA, DP, and wherein DP can be ≧0.25% HBA, such as ≧0.5% HBA, 0.75% HBA, or 1.0% HBA. Further, DP can be ≦5.0% HBA, such as ≦4.5% HBA, ≦4.0% HBA, ≦3.5% HBA, ≦3.0% HBA, ≦2.5% HBA, or ≦2.0% HBA. In another aspect, DP can be within a range between and including any of the values associated with DP herein.
- For example, DP can be ≧0.25% HBAand ≦5.0% HBA, such as ≧0.25% HBA and ≦4.5% HBA, ≧0.25% HBA and ≦4.0% HBA, ≧0.25% HBA and ≦3.5% HBA, ≧0.25% HBA and ≦3.0% HBA, ≧0.25% HBA and ≦2.5% HBA, or ≧0.25% HBA and ≦2.0% HBA. DP can be ≧0.5% HBA and ≦5.0% HBA, such as ≧0.5% HBA and ≦4.5% HBA, ≧0.5% HBA and ≦4.0% HBA, ≧0.5% HBA and ≦3.5% HBA, ≧0.5% HBA and ≦3.0% HBA, ≧0.5% HBA and ≦2.5% HBA, or ≧0.5% HBA and ≦2.0% HBA. DP can be ≧0.75% HBA and ≦5.0% HBA, such as ≧0.75% HBA and ≦4.5% HBA, ≧0.75% HBA and ≦4.0% HBA, ≧0.75% HBA and ≦3.5% HBA, ≧0.75% HBA and ≦3.0% HBA, ≧0.75% HBA and ≦2.5% HBA, or ≧0.75% HBA and ≦2.0% HBA. DP can be ≧1.0% HBA and ≦5.0% HBA, such as ≧1.0% HBA and ≦4.5% HBA, ≧1.0% HBA and ≦4.0% HBA, ≧1.0% HBA and ≦3.5% HBA, ≧1.0% HBA and ≦3.0% HBA, ≧1.0% HBA and ≦2.5% HBA, or ≧0.25% HBA and ≦2.0% HBA.
- In a particular aspect, the
undulations 802 are configured to impart pleats in at least one abrasive article installed on a hub extending from thelower plate 800 on a button when the button is engaged with a back-up pad. -
FIG. 9 illustrates another exemplaryabrasive article 900. As illustrated, theabrasive article 900 includes abody 902 formed with abore 904 at or near a center of theabrasive article 900. Thebore 904 can be sized and shaped to fit over a hub that is formed with multiple fins, e.g., the hub shown inFIG. 6 andFIG. 7 . As such, thebore 904 can include acentral opening 906 withmultiple branches 908 extending radially outward therefrom. Depending on the number of fins, thebore 904 can include three branches, four branches, five branches, six branches, seven branches, eight branches, etc. -
FIG. 10 depicts yet another exemplaryabrasive article 1000. In lieu of removing material from thebody 1002 of theabrasive article 1000 to form a passageway for the fins to fit through, as illustrated inFIG. 9 , thebody 1002 of theabrasive article 1000 may be cut withmultiple slits 1004 that correspond to the number of fins. Accordingly, when the fins are fitted through the slits, the material of theabrasive article 1000 can expand around the fins to accommodate the fins. Alternatively, theflaps 1006 created betweenadjacent slits 1004 can bend along a central axis in the same direction that a button having fins is inserted through the abrasive article 1000 (e.g., into the page on whichFIG. 10 is illustrated). - With the configuration described herein, the button for attaching an abrasive article to a back-up pad provides a relatively user friendly way to quickly attach an abrasive article to a back-up pad. Further, as easily as the abrasive article is attached, it can be just as easily detached. The button includes an engagement post having a thread lead that allows the engagement post to be engaged with a back-up pad with fewer than 2 revolutions of the button and abrasive tool. An abrasive article (e.g., a non-woven abrasive article) may be compressed between the button and the back-up pad, in order to provide substantial gripping force on the abrasive article during use. The back-up pad can be engaged with a rotating tool holder, such as a drill chuck.
- The button may be disengaged from the back-up pad, removed from the abrasive article, installed in a new abrasive article, and re-engaged with the back-up pad for further use. Alternatively, the button can be removed from the abrasive article, the abrasive article can be flipped over, the button can be re-installed in the abrasive article, and the button can be re-engaged with the back-up pad for further use of the abrasive article. As such, a previously un-used side of an abrasive article can be used and full use may be made of the abrasive article—unlike abrasive articles having buttons that are glued or otherwise fixed thereto.
- The hub of a button may be formed with a twist and during use the twist may cause the abrasive article installed thereon to move to a lower plate and further increase the gripping force on the abrasive article. Multiple abrasive articles having the same or different abrasive characteristics can be installed on a single hub in any stack order desired by a user. After use, the abrasive articles can be re-stacked in any other order for further use. A lower plate of a button can be formed with undulations and these undulations can impart pleats on the working surface of the abrasive article place on the button.
- The button may be formed with fins and the abrasive article may be formed with slits corresponding to the number of fins in a relatively simple and efficient cutting operating that only cuts the abrasive article without removing any of the abrasive article.
- Note that not all of the activities described above in the general description or the examples, if provided, are required, that a portion of a specific activity may not be required, and that one or more further activities can be performed in addition to those described. Still further, the order in which activities are listed is not necessarily the order in which they are performed. Certain features that are, for clarity, described herein in the context of separate embodiments, can also be provided in combination in a single embodiment. Conversely, various features that are, for brevity, described in the context of a single embodiment, can also be provided separately or in any subcombination. Further, reference to values stated in ranges includes each and every value within that range.
- Benefits, other advantages, and solutions to problems have been described above with regard to specific embodiments. However, the benefits, advantages, solutions to problems, and any feature(s) that can cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential feature of any or all the claims. The specification and illustrations of the embodiments described herein are intended to provide a general understanding of the structure of the various embodiments. The specification and illustrations are not intended to serve as an exhaustive and comprehensive description of all of the elements and features of apparatus and systems that use the structures or methods described herein. Separate embodiments can also be provided in combination in a single embodiment, and conversely, various features that are, for brevity, described in the context of a single embodiment, can also be provided separately or in any subcombination. Further, reference to values stated in ranges includes each and every value within that range. Many other embodiments can be apparent to skilled artisans only after reading this specification. Other embodiments can be used and derived from the disclosure, such that a structural substitution, logical substitution, or another change can be made without departing from the scope of the disclosure.
- Accordingly, the disclosure is to be regarded as illustrative rather than restrictive.
Claims (27)
Priority Applications (1)
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US14/432,130 US20150273658A1 (en) | 2012-09-27 | 2013-09-27 | Button for a attaching an abrasive article to a back-up pad |
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US201261706569P | 2012-09-27 | 2012-09-27 | |
US14/432,130 US20150273658A1 (en) | 2012-09-27 | 2013-09-27 | Button for a attaching an abrasive article to a back-up pad |
PCT/US2013/062322 WO2014052840A1 (en) | 2012-09-27 | 2013-09-27 | Button for attaching an abrasive article to a back-up pad |
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US20150273658A1 true US20150273658A1 (en) | 2015-10-01 |
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US14/432,130 Abandoned US20150273658A1 (en) | 2012-09-27 | 2013-09-27 | Button for a attaching an abrasive article to a back-up pad |
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US (1) | US20150273658A1 (en) |
EP (1) | EP2900424A4 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11040429B2 (en) * | 2015-09-08 | 2021-06-22 | 3M Innovative Properties Company | Abrasive rotary tool with abrasive agglomerates |
US11518001B2 (en) | 2018-02-20 | 2022-12-06 | Weiler Corporation | Backing pad assembly with anti-rotational locking feature for resin fiber discs |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2696700A (en) * | 1953-12-17 | 1954-12-14 | Tocci George | Universal sanding disk adapter |
US5152106A (en) * | 1986-04-03 | 1992-10-06 | Mackay Joseph H Jun | Cut-off wheel having disposable mounting hub |
US5349786A (en) * | 1993-09-27 | 1994-09-27 | Dorrah James M | Apparatus and method for producing and oscillating, an orbiting and a vibrating movement on a disc body |
US6322435B1 (en) * | 1998-01-28 | 2001-11-27 | Alan L. Hanosh | Rotary polishing discs and arbors therefor |
US6332836B1 (en) * | 2001-04-02 | 2001-12-25 | Ming-Xin Tseng | Grinding wheel assembly |
US6609951B1 (en) * | 2000-06-30 | 2003-08-26 | 3M Innovative Properties Company | Method of making a surface treating article |
US6676499B1 (en) * | 2001-07-23 | 2004-01-13 | Stewart, Ii Joseph T. J. | Male/female abrasive disk/wheel mounting member and subsequent abrasive mounting systems |
US7121924B2 (en) * | 2004-04-20 | 2006-10-17 | 3M Innovative Properties Company | Abrasive articles, and methods of making and using the same |
US20070141970A1 (en) * | 2003-01-06 | 2007-06-21 | Mackay Joseph H | Arbors and fasteners to afford two forms of easy/quick change mounting for abrasive discs |
US20080254724A1 (en) * | 2005-03-14 | 2008-10-16 | Mackay Joseph | Expandable Unitary Quick Mount Abrasive Discs and Support Pad Therefor |
US20090104862A1 (en) * | 2007-09-12 | 2009-04-23 | Mackay Joseph Hartley | Expendable unitary quick mount abrasive discs and support pad therefor |
US20090191376A1 (en) * | 2008-01-30 | 2009-07-30 | 3M Innovative Properties Company | Method, apparatus, and system using adapter assembly for modifying surfaces |
US20100048109A1 (en) * | 2008-08-20 | 2010-02-25 | King Wade C | Sander having removable platen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3003157U (en) * | 1994-04-15 | 1994-10-18 | ゼン技研有限会社 | Assembly bolt |
JP3088708U (en) * | 2002-03-20 | 2002-09-27 | 株式会社ツボ万 | Mounting structure for disc whetstones, etc. |
-
2013
- 2013-09-27 EP EP13841210.1A patent/EP2900424A4/en not_active Withdrawn
- 2013-09-27 WO PCT/US2013/062322 patent/WO2014052840A1/en active Application Filing
- 2013-09-27 JP JP2015534759A patent/JP6006427B2/en not_active Expired - Fee Related
- 2013-09-27 MX MX2015003794A patent/MX2015003794A/en unknown
- 2013-09-27 US US14/432,130 patent/US20150273658A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2696700A (en) * | 1953-12-17 | 1954-12-14 | Tocci George | Universal sanding disk adapter |
US5152106A (en) * | 1986-04-03 | 1992-10-06 | Mackay Joseph H Jun | Cut-off wheel having disposable mounting hub |
US5349786A (en) * | 1993-09-27 | 1994-09-27 | Dorrah James M | Apparatus and method for producing and oscillating, an orbiting and a vibrating movement on a disc body |
US6322435B1 (en) * | 1998-01-28 | 2001-11-27 | Alan L. Hanosh | Rotary polishing discs and arbors therefor |
US6609951B1 (en) * | 2000-06-30 | 2003-08-26 | 3M Innovative Properties Company | Method of making a surface treating article |
US6332836B1 (en) * | 2001-04-02 | 2001-12-25 | Ming-Xin Tseng | Grinding wheel assembly |
US6676499B1 (en) * | 2001-07-23 | 2004-01-13 | Stewart, Ii Joseph T. J. | Male/female abrasive disk/wheel mounting member and subsequent abrasive mounting systems |
US20070141970A1 (en) * | 2003-01-06 | 2007-06-21 | Mackay Joseph H | Arbors and fasteners to afford two forms of easy/quick change mounting for abrasive discs |
US7121924B2 (en) * | 2004-04-20 | 2006-10-17 | 3M Innovative Properties Company | Abrasive articles, and methods of making and using the same |
US20080254724A1 (en) * | 2005-03-14 | 2008-10-16 | Mackay Joseph | Expandable Unitary Quick Mount Abrasive Discs and Support Pad Therefor |
US20090104862A1 (en) * | 2007-09-12 | 2009-04-23 | Mackay Joseph Hartley | Expendable unitary quick mount abrasive discs and support pad therefor |
US20090191376A1 (en) * | 2008-01-30 | 2009-07-30 | 3M Innovative Properties Company | Method, apparatus, and system using adapter assembly for modifying surfaces |
US20100048109A1 (en) * | 2008-08-20 | 2010-02-25 | King Wade C | Sander having removable platen |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11040429B2 (en) * | 2015-09-08 | 2021-06-22 | 3M Innovative Properties Company | Abrasive rotary tool with abrasive agglomerates |
US11518001B2 (en) | 2018-02-20 | 2022-12-06 | Weiler Corporation | Backing pad assembly with anti-rotational locking feature for resin fiber discs |
Also Published As
Publication number | Publication date |
---|---|
WO2014052840A1 (en) | 2014-04-03 |
MX2015003794A (en) | 2015-07-14 |
JP6006427B2 (en) | 2016-10-12 |
JP2015530272A (en) | 2015-10-15 |
EP2900424A4 (en) | 2016-11-02 |
EP2900424A1 (en) | 2015-08-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAINT-GOBAIN ABRASIVES, INC, MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GODREAU, GREGORY C.;REEL/FRAME:033438/0310 Effective date: 20071207 |
|
AS | Assignment |
Owner name: SAINT-GOBAIN ABRASIFS, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAINT-GOBAIN ABRASIVES, INC.;REEL/FRAME:033454/0639 Effective date: 20140804 Owner name: SAINT-GOBAIN ABRASIVES, INC, MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAINT-GOBAIN ABRASIVES, INC.;REEL/FRAME:033454/0639 Effective date: 20140804 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |