EP3657976A1 - Abrasive tool and use of such an abrasive tool - Google Patents
Abrasive tool and use of such an abrasive toolInfo
- Publication number
- EP3657976A1 EP3657976A1 EP18742484.1A EP18742484A EP3657976A1 EP 3657976 A1 EP3657976 A1 EP 3657976A1 EP 18742484 A EP18742484 A EP 18742484A EP 3657976 A1 EP3657976 A1 EP 3657976A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- abrasive
- tool according
- grinding tool
- plastic
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 claims abstract description 54
- 239000004033 plastic Substances 0.000 claims abstract description 53
- 239000000945 filler Substances 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000011231 conductive filler Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims description 20
- 239000013538 functional additive Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000003242 anti bacterial agent Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 230000001532 anti-fungicidal effect Effects 0.000 claims description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000417 fungicide Substances 0.000 claims 1
- 229920003051 synthetic elastomer Polymers 0.000 claims 1
- 239000005061 synthetic rubber Substances 0.000 claims 1
- 239000003082 abrasive agent Substances 0.000 abstract description 10
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 239000000969 carrier Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 239000006261 foam material Substances 0.000 description 5
- 230000002427 irreversible effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005555 metalworking Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229940121375 antifungal agent Drugs 0.000 description 2
- 239000003429 antifungal agent Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D29/00—Manicuring or pedicuring implements
- A45D29/04—Nail files, e.g. manually operated
- A45D29/05—Nail files, e.g. manually operated motor-driven
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D29/00—Manicuring or pedicuring implements
- A45D29/11—Polishing devices for nails
- A45D29/14—Polishing devices for nails motor-driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
- B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/346—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties utilised during polishing, or grinding operation
-
- 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
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/02—Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D2205/00—Grinding tools with incorporated marking device
Definitions
- the invention relates to an abrasive carrier having a shaft for connecting the abrasive carrier to a drive device for rotatably driving the abrasive carrier about a longitudinal axis and a core connected to an axial end of the shaft. Furthermore, the invention relates to a grinding tool with such an abrasive carrier and an abrasive having a closed in the circumferential direction around the longitudinal axis surface, which encloses a along the longitudinal axis extending cavity. The core of the abrasive carrier is at least partially received in the cavity. Furthermore, the present invention relates to the use of such a grinding tool.
- Abrasive tools of this type are known and are used, for example, for metalworking, foot care, manicure or the dental field.
- the abrasive carriers used in the prior art which are also called Mandrell, are usually expanded slotted rubber with a recessed metal shank for connecting the abrasive carrier with a drive device.
- the longitudinally extending slots are intended to facilitate the attachment or removal of the circumferentially closed abrasives, such as a seamless abrasive cap or abrasive belt, onto or from the abrasive carrier.
- the abrasive carrier clamped in the drive device is rotated about the longitudinal axis.
- the slotted abrasive carrier fans out and presses against the circumferentially closed surface of the abrasive due to the centrifugal forces acting.
- a disadvantage is that the material rubber has a low temperature and dimensional stability, so that the rubber-made abrasive carrier can contract due to the frictional heat generated during grinding.
- the medium effect of the fanning of the slit abrasive desired effect of expansion is partially compensated by the contraction of the rubber under heat input.
- a high heat development which shrinks the rubber-made abrasive carrier is formed.
- the speed of the prime mover regularly decreases, so that the centrifugal forces acting on the abrasive carrier are reduced.
- the result is a reduced static friction between the abrasive carrier and the deferred abrasive, so that there is a risk that the abrasive slip off during operation of the grinding tool from the abrasive carrier.
- it is sometimes proposed to further increase the outer diameter of the abrasive carrier.
- this has the disadvantage that in the cold state of the abrasive carrier, the abrasive can be plugged or withdrawn only with an increased force, so that relativized by the designed in the abrasive carrier slots advantage again.
- abrasive carriers of metal materials are known in the art. These offer the advantage of highest temperature stability. However, these have a higher dead weight and have a hard and unyielding surface.
- the stiction of metallic abrasive carriers between the abrasive carrier and the abrasive is significantly lower than that of rubber, so that chucks are necessary to hold the abrasive securely on the abrasive carrier during rotation.
- clamping devices are costly and expensive to handle.
- a grinding tool with exchangeable grinding rollers is known.
- the abrasive rollers have a multi-part core with two core sections and an abrasive held between the core sections.
- the hollow cylindrical abrasive is made of a solid foam and has abrasive material on the outside.
- the foam-lined abrasive material By means of the foam-lined abrasive material, the abrasive can adapt to the contour of the body site to be treated, for example on a fingernail.
- No. 7,493,670 B1 shows a polishing tool with an abrasive carrier made of an elastic core, which can be connected to a drive device via a shaft.
- the elastic core may consist of closed porous polyurethane, wherein the shaft is cast in the core.
- a cotton bag filled with an abrasive or polishing agent may be coated, which may be secured to the abrasive carrier by pulling a cord carried in a drawstring.
- a cup grinding wheel with a cured resin-based core is known, wherein to increase the thermal conductivity of the core contains large amounts of metal particles, namely 40 to 90 vol. -% Aluminum and / or copper powder and 35 to 2 vol % Tin and / or tin alloy.
- the object of the present invention is to provide an improved abrasive carrier which is easier to handle and reliably prevents heat damage to the abrasive carrier or to the object to be processed, even during longer grinding cycles. Furthermore, the object of the present invention to provide an improved grinding tool with such an abrasive carrier.
- the invention is based on the consideration that a plastic is heat-insulating and thus only allows short grinding cycles in order to prevent heat-related damage to the abrasive carrier or on the object to be processed, in particular on a workpiece or to be treated body site of a patient.
- an abrasive carrier of the type mentioned above in that the core consists of a material mixture having a plastic with a thermally conductive filler, wherein the filler has a thermal conductivity greater than 35 watts per meter and per Kelvin.
- the plastic is foamed.
- the material mixture of the core has a plastic-based foam material.
- the object is achieved by a grinding tool of the type mentioned above in that the core of the abrasive carrier consists of a material mixture comprising a foamed plastic with a thermally conductive filler, wherein the filler has a thermal conductivity greater than 35 watts per meter and per Kelvin.
- the entire core is based on preferably elastic plastic, which is added to the targeted increase in the thermal conductivity of the heat-conductive filler.
- the filler can distribute the thermal energy absorbed on the outer surface of the abrasive carrier into the entire core.
- the outer surface of the abrasive medium carrier cools down faster, so that the generated during operation of the grinding tool on the abrasive frictional heat is removed by the abrasive in the core.
- longer grinding cycles are possible without damaging the object to be processed or treated, the abrasive carrier itself or the abrasive due to the heat.
- the faster cooling down can shorten the pauses between the individual grinding cycles.
- the removal rate of the grinding tool and the average service life of the abrasive carrier could be significantly increased compared to known abrasive carriers made of rubber without heat-conducting filler. Overall, a safer and more efficient grinding is achieved.
- the thermal conductivity describes the ability of a material to transport thermal energy by means of heat conduction. This is expressed by the thermal conductivity ⁇ in watts per meter and per Kelvin i w / m i ⁇ ). It has been shown that with a
- Core for example made of flexible polyurethane (short: PUR), in particular made of flexible polyurethane foam by a patient perceived as more comfortable abrasive carrier can be provided.
- the core can also be made of elastic PUR hard foam or another in the foamed or unfoamed state elastic plastic.
- the polyurethane foam mentioned here by way of example has a low thermal conductivity ⁇ of about 0.04 w / mK , the thermal conductivity being only marginally dependent on the foam density.
- the filler has a thermal conductivity greater than 35 watts per meter and per Kelvin, in particular greater than 80 watts per meter and per Kelvin. Since foam is generally formed from gaseous bubbles enclosed by solid or liquid walls, the foamed plastic has a low dead weight. As a result, the weight of the core, compared to a non-foamed plastic, significantly reduced. This is advantageous because in this way the weight introduced by the filler, especially if this is a metal or mineral filler, can be partially compensated.
- the volume of the foamed plastic may be about 70% to 95% of the total volume of the core, wherein the volume of the filler and the volume of an optionally admixed functional additive together amount to a maximum of 30% of the total volume.
- the core is still elastic.
- the manufacture of the core from a plastic-based foam material in which the fillers are incorporated provides a substantially lighter overall abrasive carrier.
- the filler is inorganic, in particular metal or mineral.
- the filler may be admixed in powder or liquid form to the plastic.
- the filler may be, for example, silver, copper or another highly thermally conductive metal. Particularly good results were also achieved with silicon carbide.
- carbon nanotubes which have a particularly light weight and highly heat-conductive properties.
- the filler may also be a mixture of different thermally conductive materials.
- the filler can bring in addition to the preferred heat conduction further advantageous properties in the core.
- silver, in particular colloidal silver additionally has antibacterial and / or antifungal activity.
- the particular elastic plastic, or synthetic resin for example, be polyurethane. In principle, however, elastic polymers, silicones, synthetically produced rubber or natural rubber are also suitable. In terms of foamed
- This plastic may preferably be a one- or two-component plastic. Particularly good results have been achieved with two-component plastics, which harden more uniformly and foam more vigorously by means of a chemical reaction between the two components.
- the plastic can also be foamed by blowing agent. It is advantageous if the filler can be admixed with the at least one component of the plastic prior to the foaming of the plastic, so that the filler is distributed as homogeneously as possible in the core. In addition, it has been shown that the core with foamed plastic is particularly temperature-stable.
- this can be poured or injected in the core.
- the shaft can already be held in the material mixture during production of the core.
- a bonding agent may be previously applied to the axial end of the shaft.
- the axial end of the shaft can have embossments which serve to anchor the core to the shaft.
- an abrasive carrier is provided in which the shaft is permanently bonded to the core and can only be separated from the shaft by destroying the core.
- the shaft may be made of a material, in particular metal, which has a higher thermal conductivity than the plastic, in particular has a thermal conductivity greater than 35 watts per meter and per Kelvin. This allows the core to cool faster.
- the shaft usually has a smooth surface in order to connect the shaft in a simple manner to the drive device, in particular to be able to clamp into it.
- the shaft can have heat transfer means which are formed on the shaft in a shaft section arranged outside the core.
- the heat conduction transfer means are arranged between a clamping region of the shank which is designed on an axial end of the shank facing away from the core and in particular has a smooth surface for connection to the drive device and the opposite axial end of the shank overlapped by the core.
- the heat transfer means may in particular imprints, corrugations, Grooves, bumps, wings or the like, which increase the surface of the shaft against a smooth surface to give thermal energy to the environment.
- wing-like or turbine-like geometries are aligned on the shaft in such a way that ambient air is drawn in and the abrasion resulting during the grinding process is blown away.
- the abrasive does not overlap the heat transfer elements.
- the heat transfer means can also serve as a clamping aid when connecting the abrasive carrier with the drive device.
- the clamping area in a known manner have a smooth surface, wherein by the beginning of the heat transfer means, for example, the corrugation the user of the abrasive carrier an optimal clamping depth of the shaft is displayed in the drive device.
- At least one radially projecting flange is arranged on the shaft, wherein the flange is made of a material which has a higher thermal conductivity than the plastic, in particular a thermal conductivity greater than 35 watts per meter and per Kelvin having.
- the flange can absorb thermal energy and release it to the environment.
- the flange may be made of the same material as the shaft or of a material having a higher thermal conductivity than the shaft.
- the flange may be annular or circumferentially interrupted about the longitudinal axis.
- an outer side of the flange can be arranged with a shaft facing the end face of the core in a plane.
- the flange may rest on the front side of the core or be flush with the end face of the core. This arrangement of the flange simplifies the manufacture of the abrasive carrier. In this case, the flange prevents bleeding of the particular liquid adhesion promoter, which can be applied to the axial end of the shaft before connecting the shaft to the core, in the remaining, coreless part of the shaft.
- the core consists of 25 to 75 percent by weight, in particular 50 to 55 percent by weight of the filler and from 0 to 10 percent by weight of at least one functional additive, the remainder of the Kerns from the plastic and unavoidable impurities.
- a plastic is particularly suitable polyurethane.
- the foamed plastic can be closed-pored.
- the plastic can have a density, or a density of 700 to 1250 kilograms per cubic meter.
- the plastic can have a Shore A hardness of 30 to 90.
- the Shore hardness A is standardized according to DIN ISO 7619-1 and measures the indentation depth of a frustoconical steel pin in a test specimen on a scale of 0 -1 00.
- the core expediently has a plastic with a Shore A hardness of 30 to 90, especially up to 80, preferably up to 70 on.
- the core is somewhat more compliant, so that the risk of grain breakage of abrasive grains from the grinding layer is reduced when preparing the grinding tool, especially on hard edges of a metal workpiece.
- an abrasive carrier with a resilient, respectively elastic core which can adapt to the contour of the object to be machined or the body site to be treated, up to a firmer core, which inter alia podiatry is well deployed.
- the material mixture of the core has at least one functional additive.
- the at least one functional additive can be added to the plastic in powder or liquid form.
- the at least one functional additive may comprise thermochromic color pigments and / or antibacterial agents and / or antifungal agents and / or friction modifiers.
- Anti-bacterial and / or antifungal agents may, in particular, be added to those abrasive carriers which are intended for use on the patient in order to provide a hygienically perfect abrasive carrier.
- the at least one functional additive may be, for example, silver, in particular colloidal silver or copper.
- the abrasive carrier often get very hot, so that the object to be processed, the abrasive carrier or the abrasive could be damaged to the fingers of the user.
- the abrasive carrier can be admixed with reversible and / or irreversible thermochromic color pigments which optically indicate the achievement of at least one defined temperature or a critical temperature range by means of at least one color change.
- the user of the abrasive carrier can be visually indicated that the abrasive and / or the abrasive carrier, for example, has become too warm.
- the effect of thermochromism is exploited, that is, certain substances change their color when heated.
- thermochromic colorants Based on the color of the thermochromic colorants, respectively color pigments in a cool state, for example at room temperature, the user is signaled by a change in the color of the color pigments, a temperature increase. For example, dark color pigments could initially signal the temperature increase by changing color in red.
- thermochromic color pigments the user is given the opportunity, for example, by reducing the contact pressure, by regulating the speed of the drive device or by interrupting the grinding process to react to overheating. Since the outer surface of the core quickly cools again due to the use of the heat-conductive filler, it is also expedient to use reversible color pigments in order to indicate the cooling of the abrasive carrier.
- irreversible color pigments can change colors as soon as they reach an outside surface temperature which is just above room temperature in order to permanently indicate after a short grinding process that the abrasive carrier has already been used once. The at least one color change is sufficiently clearly indicated to the user if the thermochromic color pigments account for up to 10% by weight of the material mixture.
- the abrasive carrier has a coating which is applied to the surface of the core, wherein the coating having the thermochromic color pigments and / or antibacterial agents and / or antifungizidic agents.
- the grinding tool according to the invention has, in addition to the abrasive carrier according to the invention on the abrasive.
- the abrasive is interchangeable with the core.
- the abrasive carrier is usable for multiple grinding operations, whereas the abrasive may be a wear product.
- the surface of the abrasive is circumferentially formed closed about the longitudinal axis of the abrasive carrier and enclosing a along the longitudinal axis of the abrasive carrier extending cavity.
- the abrasive may have a cylindrical, conical, conical, spherical, partially cylindrical and hemispherical, or cap-shaped surface, with other geometric shapes are possible.
- the abrasive may be a particularly seamless abrasive cap that can be slid onto the core of the abrasive carrier.
- the abrasive may be a grinding sleeve, which encloses the core only partially.
- an outer surface of the core is at least partially formed complementary to the surface of the abrasive surrounding the cavity.
- the core may have a cylindrical, conical, conical, spherical, partially cylindrical and hemispherical, or cylindrical round outer surface, wherein other geometric shapes are possible.
- the abrasive can lie flat against the core with its surface facing the core, so that the core connects the abrasive with the shaft.
- the abrasive adheres to the abrasive carrier.
- the exchangeable held on the core abrasive can be changed in a simple manner by plugging on the core or peeling off the core.
- the abrasive is thus a separate component from the abrasive carrier, which is held only by static friction on the core.
- the grinding tool can basically be used with adapted to the particular application abrasive, which may be different, for example, in terms of their grinding properties or strength.
- the abrasive is preferably made of a flexible material, such as abrasive cloth.
- the abrasive cloth may have a preferably flexible carrier material, which faces away from the core Grinding side is coated with an abrasive material.
- the outer surface may be a circumferential surface closed circumferentially about the longitudinal axis. That is, the lateral surface has a continuous surface without slots or the like. This also makes the core easier to clean.
- the closed lateral surface can be smooth, or pore-free or porous.
- the core can consist of a closed-cell foam material, with good static friction values also being achieved with an open-pored foam material.
- the maximum outer diameter of the core is equal to or minimally less than the maximum inner diameter of the abrasive.
- the abrasive can be plugged and pulled off well on the one hand and is held securely on the other hand during rotation on the core.
- the core whose material mixture comprises the foamed plastic
- the core with its lightweight foam material and the heavy filler incorporated in the foamed plastic, presses against the surface of the abrasive material from the inside during rotation about the longitudinal axis.
- the outer surface of the core may be a circumferential surface interrupted in the circumferential direction about the longitudinal axis. The breaks may be slotted and may extend in a longitudinal direction defined by the shaft.
- the interruptions can be cut into these, if necessary after production of the core or be provided directly during production, for example by casting or spraying a particular lamellar surface.
- the core can thus fan out and press against the surface of the abrasive material from the inside.
- a maximum outer diameter of the core may be greater than a maximum inner diameter of the abrasive to further increase the stiction between the outer surface of the core and the surface of the abrasive. This provides an interference fit between the core and the abrasive that securely holds the abrasive to the abrasive backing during operation of the abrasive tool.
- the core can also be easily compressed by hand, to reduce the static friction during the attachment or removal of the abrasive against the abrasive carrier for a short time.
- the abrasive may have reversible and / or irreversible thermochromic colorants for determining an outer surface temperature of the abrasive. Analogous to the thermochromic color pigments added as an additive in the core, the user can be shown by color change the achievement of a defined temperature or a critical temperature range. Especially if the abrasives are designed as a grinding cap which completely cover the core, the thermochromic color pigments are expediently arranged in the abrasive.
- the outer surface of the abrasive medium carrier cools quickly even after a brief interruption, since the frictional heat is transported away into the core.
- a heat build-up on the outer surface of the core is prevented so that the outer surface temperature of the abrasive article is more precisely indicated by the thermochromic color pigments, in particular with a lower measurement error.
- the abrasive may, for example, be designed to be open on both axial sides, at least on a side facing the shaft and on the example of a grinding sleeve.
- Both the grinding tool according to the invention and the abrasive carrier according to the invention can be used, for example, for metalworking and / or the treatment of human body parts, in particular in connection with a non-therapeutic or cosmetic treatment of a patient, for example for foot care, manicure or dental care.
- FIG. 1 shows an inventive abrasive carrier in side view; and Figure 2 shows an inventive grinding tool with the abrasive carrier of Figure 1 in side view.
- FIG. 1 shows an embodiment of an abrasive carrier 1 according to the invention.
- the abrasive carrier 1 comprises a metal shaft 2 and a core 3 made of a material mixture which has a plastic with a heat-conducting filler and, here, further functional additives.
- the shaft 2 has an elongated, pin-like basic shape with a front axial end 4 and a rear axial end 5 and defines a longitudinal axis X.
- the rear end 5 of the shaft 2 serves to connect the abrasive carrier 1 with a drive device, not shown, for rotationally driving the Abrasive carrier 1 about the longitudinal axis X.
- the shaft 2 may be clamped for example in a chuck of the drive device.
- the shaft 2 has a roughened, in particular corrugated surface, along the front end 4 covered by the core 5.
- a radially projecting, here annularly closed flange 6 is arranged on the shaft 2.
- the flange 6 is also metal, and here, like the shaft 2, made of steel, for example.
- An outer side 7 of the flange 6 facing the rear end 5 of the shaft 2 is provided with a front side 8 of the core 3 facing the shaft 2 in a plane E, that is, the flange 6 is flush with the core 3.
- the shank 2 has heat transfer means 10 in a shank portion 9 of the shank 2 arranged outside the core 3.
- the heat transfer medium 10 are, here, embossments that increase the surface, respectively the radiating surface of the shaft 2 in the shaft portion 9.
- the rear end 5 of the shaft 2 has a smooth surface. Starting from the rear end 5, the beginning of the embossments 10, as a clamping mark 1 1, indicates to the user the optimum clamping depth in the drive device.
- the core 3 is rotationally symmetrical with respect to the longitudinal axis X and has a solid body which, by way of example only, has a cylindrical portion and a hemispherical portion. Alternative geometries are also possible.
- the Shaft 3 is received in the cylindrical portion of the core 3.
- the material mixture of the core 3 is, here, foamed polyurethane, which is closed-cell cured.
- the foam is formed by gaseous bubbles enclosed by solid walls.
- the plastic can be provided with different properties.
- the plastic may have a density of 700 to 1250 kilograms per cubic meter.
- the plastic can have a Shore A hardness of 30 to 90.
- the heat-conducting filler is provided in the material mixture of the core 3, which is mixed with the plastic and distributed as homogeneously as possible in the core 3.
- the filler together with the other functional additives in the figure 1 by the points shown in the core 3, which are provided for clarity only once with the reference numeral 12, indicated.
- the filler may be inorganic, especially metallic or mineral.
- the filler may be silver, copper or silicon carbide.
- the filler may comprise carbon nanotubes.
- Such fillers have a thermal conductivity ⁇ of greater than 35 M / mK .
- the fillers have a significantly higher thermal conductivity than the plastic
- the example of foamed polyurethane has a thermal conductivity ⁇ of about
- thermochromic color pigments that signal the user by color change to reach a defined temperature or a critical temperature range.
- the use of the thermochromic color pigments in the core 3 of the abrasive carrier 1 is particularly useful when abrasives are used which cover the core 3 only in sections. This may for example be a cylindrical grinding sleeve, which is arranged on the cylindrical portion of the core 3.
- the functional additives can influence the friction behavior of an outer surface 13 of the core 3. In this way, the static friction coefficient can be increased.
- antibacterial and antifungicidal additives in particular silver or colloidal silver, are provided here.
- the core 3 is thus, here, from 25 to 75 weight percent of the filler and 0.5 to 10 weight percent of the functional additives, the remainder of the core 3 is made of plastic, with marginal impurities can not be excluded.
- a coating 14 is applied, which, in this case, has antibacterial and antifungicidal agents in order to be able to provide a hygienically perfect starting material for the treatment of patients.
- the coating 14 could also have thermochromic color pigments.
- FIG. 2 shows a grinding tool according to the invention which, in addition to the abrasive carrier 1 shown in FIG. 1, has an abrasive means 15 interchangeable with the core 3.
- the abrasive 15 has a circumferentially closed around the longitudinal axis X surface 16, which encloses a along the longitudinal axis X extending cavity 17.
- the abrasive 15 is shown here, in the form of a seamless abrasive cap.
- the abrasive carrier 1 is added.
- the outer surface 13 is shaped complementarily to the surface 16 and designed as a circumferential surface closed in the circumferential direction about the longitudinal axis X.
- the surface 16 of the abrasive 15 lies flat on the outer surface 13 of the core 3, so that the exchangeable abrasive 15 is held only by the static friction force on the core 3.
- thermochromic color pigments for determining an outer surface temperature of the abrasive 15, in particular the abrasive layer 18 have.
- the grinding tool During operation of the grinding tool, it is driven in rotation by the drive device about the longitudinal axis X.
- the core 3 can dissipate the absorbed thermal energy via the end face 8 of the core 3 which is not covered by the abrasive 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18742484T PL3657976T3 (en) | 2017-07-25 | 2018-07-17 | Abrasive tool and use of such an abrasive tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017116851.6A DE102017116851B4 (en) | 2017-07-25 | 2017-07-25 | Grinding tool and use of such a grinding tool |
PCT/EP2018/069406 WO2019020438A1 (en) | 2017-07-25 | 2018-07-17 | Abrasive tool and use of such an abrasive tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3657976A1 true EP3657976A1 (en) | 2020-06-03 |
EP3657976B1 EP3657976B1 (en) | 2021-09-08 |
Family
ID=62948128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18742484.1A Active EP3657976B1 (en) | 2017-07-25 | 2018-07-17 | Abrasive tool and use of such an abrasive tool |
Country Status (12)
Country | Link |
---|---|
US (1) | US11850706B2 (en) |
EP (1) | EP3657976B1 (en) |
CN (1) | CN111093422A (en) |
CA (1) | CA3068783C (en) |
CL (1) | CL2020000205A1 (en) |
DE (1) | DE102017116851B4 (en) |
DK (1) | DK3657976T3 (en) |
ES (1) | ES2898248T3 (en) |
HU (1) | HUE057071T2 (en) |
PL (1) | PL3657976T3 (en) |
RU (1) | RU2738757C1 (en) |
WO (1) | WO2019020438A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115106948B (en) * | 2022-07-14 | 2024-03-15 | 苏州市九研超硬材料有限公司 | Temperature-sensitive control Wen Shalun |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3283448A (en) | 1964-08-14 | 1966-11-08 | Bay State Abrasive Products Co | Organic bonded abrasive article |
GB1279413A (en) | 1968-10-11 | 1972-06-28 | Impregnated Diamond Prod Ltd | Improvements in abrasive wheels and other abrasive tools |
DE1950880B2 (en) * | 1968-10-11 | 1979-02-15 | Impregnated Diamond Products Ltd., Gloucestershire (Grossbritannien) | Diamond grinding tool |
US3868233A (en) | 1973-03-12 | 1975-02-25 | Norton Co | Grinding wheel core |
US4389192A (en) * | 1979-08-20 | 1983-06-21 | Neuwirth Siegmund A | Dental reducing tool |
JPS5917572Y2 (en) * | 1980-06-13 | 1984-05-22 | 豊田工機株式会社 | Grinding wheel |
DE4006660A1 (en) * | 1990-03-03 | 1991-09-05 | Winter & Sohn Ernst | Grinding disc for profiling spectacle lens edges - has plastic body with outer abrasive edge of diamond particles in metal, e.g. bronze, and a supporting copper ring |
TW221967B (en) * | 1991-08-30 | 1994-04-01 | Minnesota Mining & Mfg | |
CN2297280Y (en) * | 1997-05-02 | 1998-11-18 | 张建民 | Flexible grinding tools |
JP3308246B2 (en) * | 1999-08-18 | 2002-07-29 | 株式会社リード | Diamond blade core metal for rare earth magnet cutting |
WO2003099496A2 (en) * | 2002-05-28 | 2003-12-04 | Homma Michael M | Rotary foam sanding tool and method for manufacture |
WO2006121080A1 (en) * | 2005-05-11 | 2006-11-16 | Kabushiki Kaisha Shofu | Dental abrading agent contaiing spherical resin particles |
US7493670B1 (en) | 2005-08-16 | 2009-02-24 | Brogan Daniel L | Buffing and polishing tool |
US20070221238A1 (en) | 2006-03-21 | 2007-09-27 | Hong Tran | Foot Sanding Disc with a Flat Abrasive Sanding Surface, Smooth Periphery and Slip-On Shaft |
DE202006006564U1 (en) * | 2006-04-25 | 2006-07-13 | Busch & Co. Kg | Grinding unit attachment, comprises a cap which is fixed to a carrier which has a shaft and a tensioning section for a drive |
DE102008033915A1 (en) * | 2008-07-18 | 2010-01-21 | Busch & Co. Kg | Sharpening system for e.g. treatment of nails or claws, of human and animal, has supporter with shaft and contour for holding of sharpening unit attachment, where attachment is made of rigid, humidity-resistant material i.e. metal |
DE102013103643B4 (en) * | 2013-04-11 | 2019-11-07 | Lukas-Erzett Vereinigte Schleif- Und Fräswerkzeugfabriken Gmbh & Co. Kg | Grinding tool and use of a grinding tool |
CN103341829B (en) * | 2013-07-17 | 2016-01-27 | 江西铜业股份有限公司 | A kind of copper sliding bearing grinding rod and manufacturing process thereof |
US9491997B2 (en) | 2013-12-02 | 2016-11-15 | Soft Lines International, Ltd. | Drum assembly, cosmetic device with drum assembly, and battery compartment for cosmetic device |
BR112018001669B1 (en) | 2015-07-29 | 2022-08-16 | Saint-Gobain Abrasives, Inc. | ABRASIVE ARTICLE WITH A CORE INCLUDING A COMPOSITE MATERIAL |
-
2017
- 2017-07-25 DE DE102017116851.6A patent/DE102017116851B4/en not_active Expired - Fee Related
-
2018
- 2018-07-17 EP EP18742484.1A patent/EP3657976B1/en active Active
- 2018-07-17 WO PCT/EP2018/069406 patent/WO2019020438A1/en unknown
- 2018-07-17 CN CN201880048169.0A patent/CN111093422A/en active Pending
- 2018-07-17 US US16/633,829 patent/US11850706B2/en active Active
- 2018-07-17 ES ES18742484T patent/ES2898248T3/en active Active
- 2018-07-17 RU RU2020107701A patent/RU2738757C1/en active
- 2018-07-17 DK DK18742484.1T patent/DK3657976T3/en active
- 2018-07-17 HU HUE18742484A patent/HUE057071T2/en unknown
- 2018-07-17 CA CA3068783A patent/CA3068783C/en active Active
- 2018-07-17 PL PL18742484T patent/PL3657976T3/en unknown
-
2020
- 2020-01-24 CL CL2020000205A patent/CL2020000205A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20200238476A1 (en) | 2020-07-30 |
CL2020000205A1 (en) | 2020-10-02 |
DE102017116851A1 (en) | 2019-01-31 |
PL3657976T3 (en) | 2022-02-07 |
EP3657976B1 (en) | 2021-09-08 |
ES2898248T3 (en) | 2022-03-04 |
WO2019020438A1 (en) | 2019-01-31 |
HUE057071T2 (en) | 2022-04-28 |
CA3068783A1 (en) | 2019-01-31 |
RU2738757C1 (en) | 2020-12-16 |
CN111093422A (en) | 2020-05-01 |
DK3657976T3 (en) | 2021-12-06 |
CA3068783C (en) | 2022-05-03 |
DE102017116851B4 (en) | 2020-06-04 |
US11850706B2 (en) | 2023-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102013103643B4 (en) | Grinding tool and use of a grinding tool | |
EP1985435B1 (en) | Method and device for manufacturing a wheel rim | |
DE68920501T2 (en) | Finishing / polishing system. | |
DE602005001842T2 (en) | GRINDING ELEMENT | |
EP3657976B1 (en) | Abrasive tool and use of such an abrasive tool | |
DE69017130T2 (en) | Grooved flexible sheet material for brushes and brushes made with them. | |
DE10020101A1 (en) | Deposition of a high viscosity fluid or paste onto a carrier material uses a screen printing process | |
EP1313594B1 (en) | Polishing tool | |
DE1502632A1 (en) | Grinding wheel | |
DE60206663T2 (en) | METHOD AND DEVICE FOR PRODUCING A SPIKE TIRE | |
EP3527106B1 (en) | Sanding or polishing brush | |
DE202007012818U1 (en) | Rotating dry grinding instrument for foot care | |
EP1157627B1 (en) | Rotating abrasive device for chiropody having cooling means | |
DE102009009821A1 (en) | Polishing disc with an elastically compressible foam body | |
EP2913150A2 (en) | Polishing device with heat dissipation device | |
DE9113647U1 (en) | Working disc arrangement | |
DE3130083C2 (en) | Process for the production of tape-shaped handle material made of flexible plastic with a porous structured surface | |
DE4136169C2 (en) | Working wheel arrangement | |
AT387723B (en) | Method for producing a ski running-surface coating material for cross-country skis, and cross-country ski with such a running-surface coating material | |
JP2005131754A (en) | Kneading method and kneading device for elastic grinding wheel | |
DE1140545B (en) | Brush and brush material | |
AT413494B (en) | METHOD AND DEVICE FOR TREATING TREES OF WINTER SPORTS EQUIPMENT | |
DE3942447A1 (en) | Cooling for brake disc - has surface layer removed on rear of disc and replaced with heat conducting layer | |
DE102006047185A1 (en) | Device for applying and fixing a web of material onto a surface, where the material includes a heat-activatable binder, comprises a hot roller made of a material that is elastic and has good thermal conductivity | |
EP0876877A2 (en) | Grinding body |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200120 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LUKAS-ERZETT GMBH & CO. KG |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 40027603 Country of ref document: HK |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20210414 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1427742 Country of ref document: AT Kind code of ref document: T Effective date: 20210915 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502018006997 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 Effective date: 20211130 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: EE Ref legal event code: FG4A Ref document number: E021592 Country of ref document: EE Effective date: 20211126 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20211208 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20211209 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2898248 Country of ref document: ES Kind code of ref document: T3 Effective date: 20220304 |
|
REG | Reference to a national code |
Ref country code: HU Ref legal event code: AG4A Ref document number: E057071 Country of ref document: HU |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220108 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220110 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502018006997 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20220609 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220717 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20230720 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: RO Payment date: 20230712 Year of fee payment: 6 Ref country code: IT Payment date: 20230731 Year of fee payment: 6 Ref country code: IE Payment date: 20230726 Year of fee payment: 6 Ref country code: GB Payment date: 20230724 Year of fee payment: 6 Ref country code: ES Payment date: 20230821 Year of fee payment: 6 Ref country code: EE Payment date: 20230718 Year of fee payment: 6 Ref country code: CZ Payment date: 20230707 Year of fee payment: 6 Ref country code: CH Payment date: 20230801 Year of fee payment: 6 Ref country code: BG Payment date: 20230719 Year of fee payment: 6 Ref country code: AT Payment date: 20230718 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20230724 Year of fee payment: 6 Ref country code: PL Payment date: 20230705 Year of fee payment: 6 Ref country code: HU Payment date: 20230710 Year of fee payment: 6 Ref country code: FR Payment date: 20230724 Year of fee payment: 6 Ref country code: DK Payment date: 20230724 Year of fee payment: 6 Ref country code: DE Payment date: 20230720 Year of fee payment: 6 Ref country code: BE Payment date: 20230719 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210908 |