Abstract

An abrasive tool, including an abrasive carrier (1) having a shaft (2) for connecting the abrasive carrier (1) to a driving device for rotatably driving the abrasive carrier (1) about a longitudinal axis (X) and having a core (3) connected to an axial end (4) of the shaft (2), and an abrasive article (15) having a surface (16) being circumferentially closed about the longitudinal axis (X) and enclosing a cavity (17) extending along the longitudinal axis (X), wherein the core (3) is accommodated at least partially in the cavity (17), and wherein the core (3) includes a material mixture which includes a plastic with a heat-conductive filler, wherein the plastic is foamed, and wherein the filler has a thermal conductivity greater than 35 watts per meter and per Kelvin.

IPC Classes  ?

• B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
• B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
• B24D 9/00 - Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
• A45D 29/05 - Nail files, e.g. manually operated motor-driven
• A45D 29/14 - Polishing devices for nails motor-driven

Abstract

The invention relates to an abrasive tool comprising a lap (1) that has a shaft (2) for connecting the lap (1) to a drive device for rotatably driving the lap (1) about a longitudinal axis (X), and a core (3) that is connected to an axial end (4) of the shaft (2), and an abrasive material (15) with a surface (16) closed around the longitudinal axis (X) in the peripheral direction, said surface surrounding a cavity (17) extending along the longitudinal axis (X), the core (3) being received in the cavity (17), at least in sections, and the core (3) consisting of a material mixture comprising a plastic with a heat-conductive filler material, the plastic being foamed, and the filler material having a heat conductivity of more than 35 Watt per meter and per Kelvin. The invention further relates to the use of such an abrasive tool.

IPC Classes  ?

• A45D 29/05 - Nail files, e.g. manually operated motor-driven
• A45D 29/14 - Polishing devices for nails motor-driven
• B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor

Abstract

Embodiments described herein generally relate to a grinding disc is being rotatably drivable around an axis of rotation. The grinding disc has a front side as well as a rear side facing away from the front side. The grinding disc further includes a multi-layered circular grinding blank packet with a plurality of circular grinding blanks. The grinding blanks are flatly stacked over each other along the axis of rotation and in which each grinding blank includes a central through opening. The central through openings form together a recess of the circular grinding blank packet. Wherein the grinding disc has a backing plate, which is arranged in the recess, and the circular grinding blanks each are fixed individually to the backing plate.

IPC Classes  ?

• B24D 13/06 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery the flaps or strips being individually attached
• B24D 13/08 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery comprising annular or circular sheets packed side by side
• B24D 9/08 - Circular back-plates for carrying flexible material

Abstract

The invention relates to an abrasive body (6) for a grinding tool with an abrasive layer (8), which has at least one binding agent (12) and abrasive grains (13), characterised in that thermochromic colouring agents are provided in the abrasive layer (8). The invention relates further to a grinding tool (1) with an abrasive body (6) according to the invention and elements (5) for connecting the grinding tool (1) to a driving device for rotatingly driving the abrasive body (6). The invention relates further to a use of the abrasive body (6) according to the invention or of the grinding tool (1) according to the invention for treating human body parts.

IPC Classes  ?

• A61B 17/54 - Chiropodists' instruments
• B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
• A45D 29/04 - Nail files, e.g. manually operated
• A61C 3/06 - Tooth grinding or polishing discsHolders therefor
• B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor
• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
• A61B 17/32 - Surgical cutting instruments

Abstract

The invention relates to an abrasive wheel, with a supporting plate (2), which is produced from a nonwoven material bonded with a binder and has a fastening portion (3) with an annular clamping surface (4) for receiving a clamping nut (5) and has a supporting portion (6), lying further outwards radially from the fastening portion (3), wherein the supporting portion (6) is produced in the form of a single layer or multiple layers and in a self-supporting manner from bonded nonwoven material, and with an abrasive means (9), which is connected to the supporting portion (6) of the supporting plate (2), wherein a front face (12) of the abrasive means (9) defines a radial plane (E) at an axial distance from the clamping surface (4), wherein the abrasive means comprises an annular abrasive blank (9) with an abrasive means carrier and abrasive particles applied thereto, and wherein an axial distance (t) between the clamping surface (4) and the radial plane (E) is at least 6 mm.

IPC Classes  ?

• B24D 7/04 - Wheels in one piece with reinforcing means
• B24D 7/08 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor with inserted abrasive blocks, e.g. segmental with reinforcing means
• B24D 7/16 - BushingsMountings

Abstract

The invention relates to an abrasive wheel (3) which is drivable in rotation about a rotation axis (D) and has a front side (4) and a rear side (5) facing away from the front side (4), wherein the abrasive wheel (3) furthermore has the following: a multilayer abrasive disc pack (2) having a plurality of abrasive discs (6) which are stacked on top of one another in a flat manner along the rotation axis (D) and each have a central aperture (7), wherein the central apertures (7) jointly form a clearance (10) in the abrasive disc pack (2), characterized in that the abrasive wheel (3) has a carrier plate (1) which is arranged in the clearance (10), and in that the abrasive discs (6) are each fastened individually to the carrier plate (1).

IPC Classes  ?

• B24D 13/06 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery the flaps or strips being individually attached
• B24D 13/08 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery comprising annular or circular sheets packed side by side
• B24D 9/08 - Circular back-plates for carrying flexible material

Abstract

The invention relates to an abrasive body for a grinding tool with an abrasive layer, which has at least one binding agent and abrasive grains, characterized in that thermochromic coloring agents are provided in the abrasive layer. The grinding tool includes elements for connecting the grinding tool to a driving device for rotatingly driving the abrasive body. The grinding tool is used for treating human body parts.

IPC Classes  ?

• A61B 17/54 - Chiropodists' instruments
• B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
• A45D 29/04 - Nail files, e.g. manually operated
• A61C 3/06 - Tooth grinding or polishing discsHolders therefor
• B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor
• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
• A61B 17/32 - Surgical cutting instruments

Abstract

The invention relates to a grinding body (6) for a grinding tool, said grinding body having a grinding layer (8) which has at least one connecting element (12) and grinding structures (13), characterized in that thermochromic dyes are provided in the grinding layer (8). The invention also relates to a grinding tool (1) having the grinding body (6) according to the invention and means (5) for connecting said grinding tool (1) to a drive device for driving the grinding body (6) in a rotating manner. The invention also relates to a use of the grinding body (6) according to the invention or the grinding tool (1) according to the invention for treating parts of the human body.

IPC Classes  ?

• B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
• A45D 29/04 - Nail files, e.g. manually operated
• A61C 3/06 - Tooth grinding or polishing discsHolders therefor
• A61B 17/54 - Chiropodists' instruments
• B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor
• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials

Abstract

A grinding lamella 1 for being arranged on a grinding wheel 19 which is rotatingly drivable around an axis of rotation, comprising an outer edge 2 which is at least partially convex, an inner edge 3 which is at least partially concave, a front edge 4 which connects together the outer edge 2 and the inner edge 3 on the front side of the grinding lamella 1, and a rear edge 5 which connects together the outer edge 2 and the inner edge 3 on a rear side of the grinding lamella 1, wherein the front edge 4 is longer than the rear edge 5 and wherein the outer edge 2 is longer than the inner edge 3.

IPC Classes  ?

• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
• B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
• B24D 13/16 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face comprising pleated flaps or strips

Abstract

The invention relates to a grinding or polishing blade (1) for arrangement on a rotationally drivable grinding or polishing disk, having an outer edge (2) extending over the circumference that has three convex sections (3, 3', 3") and three concave sections (4, 4', 4"), which are arranged alternately over the circumference, wherein the convex sections (3, 3', 3") and the concave sections (4, 4', 4") are shaped as circular arcs having the same radii (R, R1, R2, R3).

IPC Classes  ?

• B24D 7/02 - Wheels in one piece
• B24D 7/12 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor with apertures for inspecting the surface to be abraded
• B24D 9/08 - Circular back-plates for carrying flexible material

Abstract

Grinding lamella 1 for arrangement on a grinding wheel 19 which can be driven in rotation about an axis of rotation D, comprising an outer edge 2, which has a convex form at least in certain regions, an inner edge 3, which has a concave form at least in certain regions, a front edge 4, which connects the outer edge 2 and the inner edge 3 to one another at a front side of the grinding lamella 1, and a rear edge 5, which connects the outer edge 2 and the inner edge 3 to one another at a rear side of the grinding lamella 1, wherein the front edge 4 is longer than the rear edge 5 and the outer edge 2 is longer than the inner edge 3.

IPC Classes  ?

• B24D 13/16 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face comprising pleated flaps or strips
• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials

Abstract

The invention relates to a grinding element made of a laminar material for a grinding tool that can be rotationally driven about a rotary axis (D), comprising a first segment and a second segment and a plurality of grinding disc segments (4) formed in the second segment and connected to the first segment, wherein the grinding disc segments (4) are folded over at an angle to the first segment.

IPC Classes  ?

• B24D 13/04 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis
• B24D 13/14 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face

Abstract

An abrasive disc (1), in particular for abrasive wheels (15) which can be driven in a rotating manner, comprising an outer edge (2) and an inner edge (3), which merge one into the other at a first point of intersection Si, wherein the inner edge (3) has, at least over part of its extent, a concave portion (7), which is formed such that it is congruent with a convex portion (16) of the outer edge (2), wherein the convex portion (16) of the outer edge (2) extends from the first point of intersection Si over a part of the outer edge (2) and wherein the concave portion (7) of the inner edge and the convex portion (16) of the outer edge (2) are arranged point-symmetrically in relation to each other.

IPC Classes  ?

• B24D 13/16 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face comprising pleated flaps or strips
• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials

Abstract

The invention relates to a grinding lamella (1), in particular for arranging on a rotatingly driven grinding disk (8), comprising at least two annular sections (4, 5, 6, 7, 24, 25, 26, 27, 34, 35, 36, 37, 44, 45, 46, 47) arranged next to each other at an angle (α), which at least partially has a shape which deviates from a circular disk having a central opening. A grinding disk (8) containing said grinding lamellas comprises at least one carrier element (2) and at least two grinding lamellas (1) of said type which at least partially cover and form together an annular shape. According to a cut pattern (14, 32) for a material cut or a material strip for producing said type of grinding lamellas (1 ), the grinding lamellas (1) are arranged next to each other in the same direction and also adjacent to each other and offset at 180°.

IPC Classes  ?

• B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
• B24D 13/08 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by their periphery comprising annular or circular sheets packed side by side
• B24D 13/16 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face comprising pleated flaps or strips