US20200361062A1 - Molded and shaped thermoset abrasive discs - Google Patents
Molded and shaped thermoset abrasive discs Download PDFInfo
- Publication number
- US20200361062A1 US20200361062A1 US16/946,424 US202016946424A US2020361062A1 US 20200361062 A1 US20200361062 A1 US 20200361062A1 US 202016946424 A US202016946424 A US 202016946424A US 2020361062 A1 US2020361062 A1 US 2020361062A1
- Authority
- US
- United States
- Prior art keywords
- disc
- discs
- molded
- pad
- abrasive discs
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- 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
- B24D11/001—Manufacture of flexible abrasive materials
Definitions
- a new design of the shape of abrasive sanding discs that features a slightly oversized, tapered molded edge that curves up over the backing pad will solve the problems listed above.
- the discs will not have the sharp edges that lead to injuries and damage of parts in manufacturing.
- These can have a hook and loop backing or a pressure sensitive adhesive backing.
- Possible backing methods include pressure sensitive adhesive and hook and loop material.
- FIG. 1 A side view of the disc as it would sit on a flat surface
- FIG. 2 A side view of the disc as it would sit on a flat surface
- FIG. 3 A 3D view of the disc as it would sit flat
- FIG. 4 A top view of the disc
- FIG. 5 A bottom view of the disc
- a typical sanding disc is 5′′ OD going on to a 47 ⁇ 8′′ OD back up pad. In that situation, I will start with a 51 ⁇ 2′′ OD disc and form the edges so the edges extend over the back up pad.
Abstract
An abrasive disc that fits on a sander over all of the edges of the back up pad such that the disc itself does not have a sharp edge which can cause injuries or damage parts.
Description
- Abstract: An added molding and shaping process to flexible abrasive sanding discs slightly oversized compared to the backup pad. Possible configurations include sizes of 2″,3″,5″,6″,8″, and 11″ outside diameter. Possible grit configurations include
- 24, 36, 40, 50, 60, 80, 100, 120, 150, 180, 220, 320, 400, 600, 800, 1000, 1200, 1500, 2000 and 3000.
- Background: In my 25 year experience in distribution of coated abrasive products, no company has come up with a safe solution for the following problems while either hand sanding or using pneumatic random orbital sander for flexible disc sanding of wood, metals, composites, or other substrates.
- Description: Taking an existing flat abrasive disc or punching discs from jumbo rolls and shaping it slightly so the outer diameter of the forms to the outside diameter of the backup pad with a tapered edge. This tapered edge will greatly reduce the chance of the disc cutting body parts or work pieces due to spreading the force of the dangerous sharp disc edge, so it sands instead of cuts.
- I want to manufacture and market a safer line of abrasive sanding discs.
- The problems of current discs on the market include:
- 1. Film backed discs being very sharp on the edges leading to injury while accidentally touching the discs while the pneumatic random orbital sander spins at 12,000 rpm. This usually occurs when the sander is set down after use and accidental contact is made while the disc is still spinning. Safety is a major concern for all manufacturers as it should be. In the last week, I have asked 6 different professional sanders about hand injuries and 100% described horrific injuries. Some required stiches.
- 2. While sanding a variety of surfaces that have a 90 degree angle to them, the sharp disc contacts the edge of where the parts meet and gouges the workpiece.
- 3. This can also occur and flat work pieces when the sander is set down at a slight angle.
- 4. When a back up pad (the part the disc attached to), gets worn or loaded, it can make the discs fly off at high speed. This turns them into high speed cutting devices as they fly, very dangerous.
- A new design of the shape of abrasive sanding discs that features a slightly oversized, tapered molded edge that curves up over the backing pad will solve the problems listed above. The discs will not have the sharp edges that lead to injuries and damage of parts in manufacturing. These can have a hook and loop backing or a pressure sensitive adhesive backing. Possible backing methods include pressure sensitive adhesive and hook and loop material.
- The advantages of my design are:
- Operator safety
Lessening the risk of work surface damage
Longer disc pad life
Longer disc life
Much shorter distance of travel if they accidentally fly off -
FIG. 1 —A side view of the disc as it would sit on a flat surface -
FIG. 2 —A side view of the disc as it would sit on a flat surface -
FIG. 3 —A 3D view of the disc as it would sit flat -
FIG. 4 —A top view of the disc -
FIG. 5 —A bottom view of the disc - By specifying new disc sizes from the abrasive manufacturer plant or laser cutting or die stamping new, oversized discs, this gives and extra edge to work with. Example: A typical sanding disc is 5″ OD going on to a 4⅞″ OD back up pad. In that situation, I will start with a 5½″ OD disc and form the edges so the edges extend over the back up pad.
- I will accomplish that by starting with an oversized tube press with internal, thin, welded pieces of metal that conform the individual discs with a pattern. As the discs move down the tubes (with consistent heat added), the outside edges will conform and therefore make a tight seal over the intended back up pad when used.
Claims (1)
1. A molded and shaped circular abrasive disc comprising:
A formed shape that is flat on the surface of the back up pad and extends up over part or all of the edges of the back up pad.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/946,424 US20200361062A1 (en) | 2020-06-20 | 2020-06-20 | Molded and shaped thermoset abrasive discs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/946,424 US20200361062A1 (en) | 2020-06-20 | 2020-06-20 | Molded and shaped thermoset abrasive discs |
Publications (1)
Publication Number | Publication Date |
---|---|
US20200361062A1 true US20200361062A1 (en) | 2020-11-19 |
Family
ID=73231183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/946,424 Abandoned US20200361062A1 (en) | 2020-06-20 | 2020-06-20 | Molded and shaped thermoset abrasive discs |
Country Status (1)
Country | Link |
---|---|
US (1) | US20200361062A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6530830B2 (en) * | 2001-03-19 | 2003-03-11 | 3M Innovative Properties Company | Sanding disc |
-
2020
- 2020-06-20 US US16/946,424 patent/US20200361062A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6530830B2 (en) * | 2001-03-19 | 2003-03-11 | 3M Innovative Properties Company | Sanding disc |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2309016A (en) | Composite grinding wheel | |
US2496352A (en) | Abrasive wheel | |
US2078354A (en) | Abrasive article | |
JP6360750B2 (en) | Wafer processing method | |
JP2008068399A (en) | Improvement of abrasive disc | |
US2307312A (en) | Abrading wheel | |
MX2011000299A (en) | Abrasive wheel comprising a fan-like structure. | |
US20200361062A1 (en) | Molded and shaped thermoset abrasive discs | |
JPWO2015020082A1 (en) | Polishing tool and member processing method | |
CN205799271U (en) | A kind of plated diamond grinding wheel | |
US2076833A (en) | Abrasive article | |
US2027132A (en) | Grinding wheel | |
JP2012250352A5 (en) | Scribing wheel, scribing device and scribing method | |
MY197043A (en) | Outer blade cutting wheel and making method | |
JP6234250B2 (en) | Dressing tools | |
CN203048288U (en) | Automatic adhesive tape cutting machine | |
TWM449077U (en) | Disc saw blade structure with grinding and scrap discharging capability | |
GB2425979A (en) | Dressing the blades of a tobacco cutting apparatus | |
US2735249A (en) | Cold grinding machine | |
US271634A (en) | Emery-wheel for sharpening saws | |
JP6367614B2 (en) | Grinding wheel manufacturing method | |
CN205630343U (en) | Novel abrasive band | |
JPH06312376A (en) | Ultra-abrasive wheel embedded therein with striplike chips, for precise cutting | |
JP2014037035A (en) | Grinding method | |
JP5377429B2 (en) | Honing wheel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |