초록 ▼

The surface finisher is an attachment for an angle grinder or other handheld prime mover that precludes the need to finish uncured concrete or other viscous, semi-fluid materials by hand. The surface finisher is a disk having a series of radially disposed blades extending from the plane of the disk,

The surface finisher is an attachment for an angle grinder or other handheld prime mover that precludes the need to finish uncured concrete or other viscous, semi-fluid materials by hand. The surface finisher is a disk having a series of radially disposed blades extending from the plane of the disk, with the blades flexing over the surface to which they are applied to smooth the surface during operation. The disk and blades may be formed as a single, integral component, or may alternatively be formed as a flat, planar disk with a series of removable blades. Either embodiment may be formed of a variety of metal and/or plastic materials. The finishing blades bear against the surface and even out surface irregularities and put a slick, finished surface to the uncured surface, or may be used to form a pattern or texture in the uncured surface by using a contoured blade.

대표청구항 ▼

I claim: 1. A surface finisher being attached to a power tool, comprising a disk having: a frusto-conical central portion adapted for attachment to a rotatable shaft of a prime mover of the power tool; and a plurality of spaced apart blade sections extending radially outward from the central portio

I claim: 1. A surface finisher being attached to a power tool, comprising a disk having: a frusto-conical central portion adapted for attachment to a rotatable shaft of a prime mover of the power tool; and a plurality of spaced apart blade sections extending radially outward from the central portion, each of the blade sections having: a planar stabilizer, the stabilizers being coplanar, with a portion thereof secured to the central portion of the disk; an intermediate tab angled away from the stabilizer at various angles that can be selected to be at least at approximately a forty-five degree angle and spaced from and out of contact with the central portion; and, wherein said blade sections further comprise a finishing blade angled away from the intermediate tab at various selective angles relative to the plane in which the stabilizers are disposed, while being spaced from and out of contact with the central portion, wherein the finishing blade defines at least one edge portion that is bent at an angle toward said disk to prevent scoring of the material being worked. 2. The surface finisher according to claim 1, wherein said disk and blade sections are a one-piece continuous member made from any one of the group comprising metals and plastics. 3. The surface finisher according to claim 1, wherein each said finishing blade has an outer edge having a bend toward said stabilizer. 4. The surface finisher according to claim 1, further including a handheld angle grinder power tool. 5. The surface finisher according to claim 1, wherein the finishing blade of at least one of said blade sections further includes any one of a plurality of surface pattern forming contours formed on a surface contact face. 6. A surface finisher being attached to a rotary shaft of a power tool, the surface finisher comprising: a flat, rigid, planar tool attachment disk defining a rotary plane and having a diameter, a thickness, a central tool attachment shaft passage therethrough for receiving the power tool rotary shaft, and a plurality of blade attachment passages therein; and a plurality of spaced apart thin, flexible surface finishing blade components being attached to said disk and spaced from and out of contact with the central tool attachment passage, and within and contiguous to the circumference of said disk, each of said blade components having a disk attachment portion that is secured to the blade attachment passages, a surface contact portion displaced from the disk attachment portion, an intermediate portion between the disk attachment portion and the surface contact portion, and said surface contact portion including a finishing blade element angled away at selective angles from the intermediate portion with at least one edge portion thereon that is bent at an angle toward said disk to prevent scoring of the material being worked. 7. The surface finisher according to claim 6, further including a handheld angle grinder power tool. 8. The surface finisher of claim 6, further comprising a tool attachment collar assembly. 9. The surface finisher according to claim 8, wherein said collar assembly comprises: a tool spacer having an unthreaded tool shaft passage therethrough and a concentric annular spacer flange fitting closely within the tool attachment shaft passage of said disk when installed therewith; and an attachment nut having a threaded tool shaft installation passage therethrough and a concentric, annular nut flange fitting closely within the tool attachment shaft passage of said disk when installed therewith; and the shaft flange and the nut flange having an additive total height less than the thickness of said disk, thereby clamping said disk securely between said tool spacer and said attachment nut when secured upon the rotary shaft of the power tool. 10. The surface finisher according to claim 6, wherein each of said finishing blade components are removably secured to said attachment disk, and said finishing blade element has an outer edge having a bend toward said disk attachment portion thereof. 11. The surface finisher according to claim 6, wherein: the intermediate portion of each of said blade components has an angle of about forty-five degrees to the disk attachment portion thereof; and the surface contact portion of each of said blade element has an angle of various selective degrees, wherein a preferred angle of the surface contact portion can be selected to be at least between four and twelve degrees from the surface attachment portion thereof, if desired. 12. The surface finisher according to claim 6, wherein the finishing blade components are made from any one of the group comprising metals and plastics, and at least one finishing blade element further includes at least one surface pattern forming contour on a face of said surface contact portion, wherein the at least one surface pattern forming contour can be any one of a variety of shapes and sizes. 13. A power tool with a surface finisher, comprising in combination: a tool attachment disk having a plurality of spaced apart thin, flexible surface finishing blade components extending from said disk at different spaced locations thereon, with each of said blade components having at least a first surface secured at the different locations, a second surface having an intermediate portion that extends at an angle from the first surface and a third surface defining a finishing blade portion having a surface contact portion extending angularly away from the second surface and displaced from the plane of said disk at selective angles with at least one edge portion thereon that is bent at an angle toward said disk to prevent scoring of the material being worked; a handheld power tool; and a tool attachment collar assembly removably attaching the disk to a rotatable shaft of a prime mover of the power tool through a central tool attachment passage, wherein the finishing blade components being spaced and extending outwardly from the central tool attachment passage, and within and contiguous to the circumference of said disk. 14. The power tool with a surface finisher according to claim 13, wherein: said disk further includes a frusto-conical central portion adapted for attachment to the rotatable shaft of the prime mover of the power tool; said first surface defines a planar stabilizer, the stabilizers being secured to the central portion of said disk; said second surface intermediate portion defines an intermediate tab angled away from the stabilizer at an angle defined by various selective degrees; and said finishing blade portion being angled away from the intermediate tab at least at an angle defined by various degrees, wherein the angle of the finishing blade portion can be selected to be at least between six and twelve degrees relative to the plane in which the stabilizers are disposed, if desired. 15. The power tool with a surface finisher according to claim 13, wherein: said tool attachment disk comprises a flat, rigid component defining a rotary plane and having a diameter, a thickness, a central tool attachment shaft passage therethrough, and a plurality of blade attachment passages therein; and said finishing blade components are removably attached to said disk, each of said blade components having a disk attachment portion that is removably attached via said blade attachment passages, the surface contact portion being displaced from the disk attachment portion, and the intermediate portion being positioned between the disk attachment portion and surface contact portion. 16. The power tool with a surface finisher according to claim 13, wherein said power tool is an angle grinder. 17. The power tool with a surface finisher according to claim 13, wherein said collar assembly comprises: a tool spacer having an unthreaded tool shaft passage therethrough and a concentric annular spacer flange fitting closely within the tool attachment shaft passage of said disk when installed therewith; and an attachment nut having a threaded tool shaft installation passage therethrough and a concentric annular nut flange fitting closely within the tool attachment shaft passage of said disk when installed therewith; the shaft flange and the nut flange having an additive total height less than the thickness of said disk, thereby clamping said disk securely between said tool spacer and said attachment nut when secured upon the rotary shaft of the power tool. 18. The power tool with a surface finisher according to claim 13, wherein each of said finishing blade portion has an outer edge having a bend toward said disk attachment portion thereof. 19. The power tool with a surface finisher according to claim 13, wherein: the intermediate portion of each of said finishing blade components has an angle of about forty-five degrees to the disk attachment portion thereof; and the surface contact portion of each of said finishing blade portion has an angle of various selective degrees, wherein the angle of the surface contact portion can be selected to be at least between four and twelve degrees from the disk attachment portion thereof. 20. The power tool with a surface finisher according to claim 13, wherein the finishing blade components are made from any one of the group comprising metals and plastics, and at least one of said finishing blade portions has at least one surface pattern forming contour formed on a face of said surface contact portion, wherein the at least one surface pattern forming contour can be any one of a variety of shapes and sizes. 21. A surface finisher having a tool attachment collar assembly for removably securing a surface finishing disk to a rotary power tool shaft, the disk having a thickness and a tool attachment shaft passage therethrough and a plurality of blade attachment passages therein; the disk having: a plurality of spaced apart thin, flexible surface finishing blade components being attached to said disk spaced outwardly from the tool attachment passage and within and contiguous to the circumference of said disk, each of said blade components having a disk attachment portion that is secured to the blade attachment passages, a surface contact portion displaced from the disk attachment portion, an intermediate portion between the disk attachment portion and the surface contact portion, and a finishing blade element being angled away from the intermediate portion at selective angles, said finishing blade element having at least one edge portion thereon that is bent at an angle toward said disk to prevent scoring of the material being worked, the collar assembly comprising: a tool spacer having an unthreaded tool shaft passage therethrough and a concentric annular spacer flange fitting closely within the tool attachment shaft passage of the disk when installed therewith; and an attachment nut having a threaded tool shaft installation passage therethrough and a concentric annular nut flange fitting closely within the tool attachment shaft passage of the disk when installed therewith; the shaft flange and the nut flange having an additive total height less than the thickness of the disk, thereby clamping the disk securely between said tool spacer and said attachment nut when secured upon the rotary shaft of the power tool.