• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is a rotatable body-grinding instrument (7) for skin and nail care with a shank (2) for clamping and a grinding area (4), on whose surface an abrasive (15) is applied, proposed, wherein the abrasive (15) at least essentially as a mixture of diamond grains and ceramic grains, and wherein the ceramic grains comprise at least one oxide ceramic, wherein the weight fraction of diamond grains on the abrasive (15) is less than 50 weight percent.
    公开号:CH708310B1
    申请号:CH00958/14
    申请日:2014-06-24
    公开日:2018-11-30
    发明作者:Busch Gert
    申请人:Busch & Co Gmbh & Co Kg；
    IPC主号:
    专利说明:

    Description: The present invention relates to a rotatable body-grinding instrument for skin and nail care. The body grinding instrument is intended in particular for treating skin, fingernails and / or toenails of humans.
    An embodiment of a body-grinding instrument is known for example from DE 20 2008 015 821 U1. In the embodiment of a body-grinding instrument presented there, the grinding instrument is designed as a rotatable body grinding instrument which has an elongated shaft. The shaft can be clamped on a shaft end. The body-grinding instrument is thereby inserted in the region of its shaft in an opening of a correspondingly provided or suitable processing device and connectable to this. Then, by means of the processing instrument, a movement of the body-grinding instrument can then be brought about and, in particular, a rotation of the body-grinding instrument can be effected. The body-grinding instrument, which can be found in DE 202008015 821 U1, has a rotationally symmetrical shape and a working area, which is designed to taper conically in a direction away from the shaft end. The work area is formed on areas of its surface abrasive decreasing, for example, appropriately designed milling edges are provided.
    The invention has for its object to provide a rotatable body-grinding instrument available, which is optimized in its properties to an abrasive treatment of body parts out to stand for example for a skin and / or nail care available.
    The object is achieved with a rotatable body-grinding instrument having the features of claim 1. Further advantageous embodiments and developments will become apparent from the following description.
    It is proposed a rotatable body-grinding instrument for skin and nail care. The body-grinding instrument has a shank for clamping and a grinding area on the surface of which an abrasive is applied.
    The abrasive is at least substantially as a mixture of diamond grains and ceramic grains. The ceramic grains have at least one oxide ceramic. The proportion by weight of diamond grains in the abrasive is less than 50 weight percent.
    The rotating body-grinding instrument for skin and / or nail care has a shank for clamping and a grinding area. An abrasive is applied to the surface of the grinding area. This is in particular expressed that at least partially the grinding area is provided on its surface with abrasive.
    The abrasive is at least substantially, preferably completely, as a mixture of diamond grains and ceramic grains. The ceramic grains have at least one oxide ceramic.
    It may be provided, for example, that the ceramic grains have an alumina, as zirconia, as titanium oxide, as magnesium oxide, as zinc oxide, as aluminum titanate and / or designed as a barium titanate oxide ceramic.
    In particular, it can be provided in one embodiment of the body-grinding instrument that the ceramic grains have corundum.
    The term of corundum here refers to the so-called alpha-modification of alumina in the composition AI2O3. The term "corundum" is also intended to include varieties, that is to say colored formations of the corundum, which result in small amounts from metallic constituents, such as, for example, ruby and / or sapphire.
    Furthermore, it is provided that the proportion by weight of the diamond grains in the abrasive is less than 50 percent by weight.
    For example, in one particular embodiment of the rotatable body-grinding instrument, it may be provided that the weight fraction of the diamond grains on the abrasive is between 15 weight percent and 35 weight percent. Further, the weight ratio of the ceramic grains to the abrasive is between 60 wt.% And 85 wt.%.
    In a further embodiment of the body-grinding instrument can be provided, for example, that the proportion by weight of the diamond grains in the abrasive between 20 percent by weight and 30 percent by weight. Furthermore, the weight fraction of the ceramic grains on the abrasive is between 65 wt.% And 80 wt.%.
    In another embodiment of the body-grinding instrument, it may be provided, for example, that the proportion by weight of the diamond grains in the abrasive is between 5% by weight and 15% by weight. Further, the weight ratio of the ceramic grains to the abrasive is between 80 wt.% And 95 wt.%.
    In particular, a weight proportion of the diamond grains may be provided on the abrasive between 5 percent by weight and 15 percent by weight for use for the treatment of skin.
    The resulting in this embodiment of the body-Schleifinstruments advantages are particularly evident in a grinding of soft components of the body such as skin, cornea or example of elastic Vorfüllbereichen between nail bed end and nail end of artificial nails. In particular, it has been shown as a surprising effect of this embodiment of the body-grinding instrument that abrasion of, for example, skin is very fine abrasive, so that only the uppermost skin layer can be abraded.
    The abrasive may be, for example, unbonded abrasive such that the ceramic grains and / or the diamond grains are not bonded together.
    Instead, with unbound abrasives, the grains of abrasive are merely bonded to the backing which is formed by the surface of the abrasive region. It can be provided, for example, that the grains are connected by means of a binder material with the surface of the grinding area of the grinding instrument. Likewise, for example, it may be provided that not only one material but also one or more materials or additionally with other materials in different layers is / are applied. Thus, for example, a layered layering of the binder materials may be provided, so that a lower layer of a binder acts as a base weave in a primary layer and this primary layer is provided with a cover weave, which is formed as a secondary layer.
    The stated proportions by weight of the abrasive are to be understood to mean that the abrasive in the nomenclature used comprises grains which at least substantially comprise the abrasive. However, any binders should not be considered as part of the abrasive. On the other hand, it may be provided that, in addition to the stated proportions by weight of the diamond grains and the stated weight fractions of the ceramic grains, other constituents of the abrasive, which are in the form of solids, are also included. In this case, these other ingredients may optionally constitute 100 weight percent missing portions of the abrasive. The entirety of the abrasive applied to the surface of the grinding area forms the reference value of 100% by weight, so that, to a lesser extent, predominantly inhomogeneities when considering the weight fractions are of no particular importance.
    The presence of minor proportions of up to 15 percent by weight of other ingredients in the abrasive than diamond grains and ceramic grains may be provided. Such other constituents may, for example, be solids which, due to their too low hardness and / or toughness, do not contribute significantly or not significantly to surface grinding, but nevertheless are intended or unintentionally present as solids in the abrasive. For example, it may be provided that contamination exists. Also, there may be provision of intentionally or unintentionally accepted or intentionally added ingredients, for example, materials having functions other than a grinding function. An example of such possible further ingredients are solid-state constituents of an abrasive intended for improving tribological performance and / or improving heat removal.
    It is envisaged that the ceramic grain has at least one long edge which forms a cutting edge. In one embodiment of the body-grinding instrument, for example, it is provided that a ceramic grain of the abrasive means has an elongated basic shape.
    The term "long edge" is to be understood as meaning that an edge is formed along a region of the ceramic grain. The edge is characterized in that at least one cross-sectional area of the ceramic grain exists, which is cut perpendicularly or substantially perpendicularly by the edge, wherein the edge can be enclosed by two legs resting on outer surfaces of the ceramic grain. Furthermore, these legs are to the ceramic grain indicative include an angle that is at most 180 degrees, so that a long edge angle exists, which is smaller than 180 degrees.
    A long edge may be, for example, an edge of the ceramic grain, which is generated in a production of the ceramic grain in a breakage of the ceramic grain.
    The term elongated basic shape is to be understood such that the ceramic grain is longer in a first direction than in a second direction, wherein the second direction may be oriented substantially perpendicular or perpendicular to the first direction. For example, it may be provided that an aspect ratio of the extent of the ceramic grain in the first direction to the extent of the ceramic grain in the second direction is greater than 1.5. It can also be provided that an aspect ratio between the extent in the first direction and the extent in the second direction is greater than 2. It can also be provided that the aspect ratio between the extent in the first direction and the extent in the second direction is greater than 3. At least, however, the aspect ratio of the expansion of the ceramic grain in the first direction to the extension of the ceramic grain in the second direction should be greater than 1. The term aspect ratio is to be interpreted as the second direction, the shortest dimension of the ceramic grain is based the extension is to be used in a direction perpendicular to the first direction.
    It can be provided, for example, that the long edge is oriented parallel or at least substantially parallel to a longitudinal extent of the ceramic grain. However, it can also be provided any other orientation of the long edge.
    In a totality of the ceramic grains it can be provided that a proportion of at least 30 percent, preferably 50 percent, particularly preferably 70 percent, of the long edges is oriented substantially parallel to a longitudinal extent of the ceramic grain.
    In a specific embodiment of the body-grinding instrument can be provided, for example, that the long edge of the ceramic grain is at least partially sharp-edged. In a preferred embodiment of the body-grinding instrument can be provided that the long edge of the ceramic grain is at least approximately or completely sharp-edged. The term sharp sharpness is to be understood to mean that the radius of the largest circle is as small as possible, which does not leave the cross section of the ceramic grain from the inside in a cross-sectional profile of the ceramic grain and simultaneously touches the long edge. This radius is referred to below as the long edge radius. Preferably, the long edge radius is less than 100 microns to ensure the presence of a sharp edge. An illustrative representation of the long edge radius is shown in Fig. 5c and explained in the accompanying description.
    In a special embodiment of the body-grinding instrument may further be provided that the long edge has an acute angle formed at an angle of less than 90 degrees long edge angle.
    Preferably, it can be provided that a first portion of all long edges of the body-grinding instrument has a long edge angle of less than 90 degrees and a second portion of all long edges of the body-grinding instrument has a long edge angle between 90 degrees and less than 180 degrees. It is preferably provided that the first portion is greater than the second portion, preferably the first portion is more than 70 percent.
    Also, for example, be provided that the long edge has a long edge radius which is less than 50 microns.
    Particularly preferably, it can be provided that the long edge radius is less than 10 micrometers. Particularly preferred may be provided that the long edge radius is less than 5 microns.
    The long edge radius corresponds, as described above, a circle which approximates the profile of the cutting edge.
    It can be provided that the long edge radius meets the requirements described above at least at a position of the extension of the ceramic grain along the first direction. It can also be provided that each long-edge radius of the ceramic grain fulfills the described conditions. Likewise, it can be provided, for example, that along a region of the first direction the long edge radius fulfills the requirements described above at least at a position of the extent of the ceramic grain along the first direction, wherein this region may comprise, for example, at least 50 percent of the extension.
    The smallest possible trained as cutting radius long edge radius with the sharpest possible sharpness of the ceramic grain in the episode has the advantage that a particularly efficient removal of the material to be ground takes place.
    A sharp edge of the ceramic grain on its long edge causes the advantage of the body-grinding instrument that even at low contact forces a comparatively high chip thickness and / or efficient removal of the ablated counterpart body, such as cornea done.
    It can be provided that there is a Gaussian normal distribution of the cutting radii and that the said values, which were mentioned as possible long-edge radii, are to be regarded as the arithmetic average of the normal distribution. For example, it can be provided that a value of 20 percent of the stated mean value is provided as a standard deviation. It can also be provided that a value of 30 percent of the corresponding value is provided as a standard deviation.
    It can be provided, for example, that the long edge of a coarse abrasive a length of K1 between 200 microns +/- 10 percent and 1800 microns +/- 10 percent, preferably between 200 microns +/- 10 percent and 300 microns + / -10 percent. Furthermore, it can be provided that the long edge in the case of a medium abrasive has a length of K2 between 85 micrometers +/- 10 percent and 185 micrometers +/- 10 percent, preferably between 115 micrometers +/- 10 percent and 130 micrometers +/- 10 Percent. It can also be provided, for example, that the long edge of a fine abrasive has a length of K3 between 25 micrometers +/- 10 percent and 80 micrometers +/- 10 percent, preferably between 40 micrometers +/- 10 percent and 50 micrometers +/- 10 percent.
    In a preferred embodiment it is provided that said values for K1, K2 and K3 indicate the boundaries of the areas within which the length of the long edge is located in a light microscopic determination.
    In a further refinement, it can furthermore be provided that the stated values are in each case an arithmetic mean of all lengths of all long edges of the body-grinding instrument with a standard deviation for a gaussian normal distribution on which it is based.
    In a further embodiment of the body-grinding instrument can be provided, for example, that a diamond grain of the abrasive is present in blocky formation.
    In a preferred embodiment, it can be provided, for example, that a diamond grain of the abrasive is block-shaped to the extent that the block-shaped formation of the diamond grain is at least substantially formed as a rectangular shape.
    In a particularly preferred embodiment, a diamond grain of the abrasive is in an at least substantially cubic shape.
    Furthermore, it can be provided, for example, that the diamond grain of the abrasive has a number of diamond edges. Preferably, the diamond grain has a number of 12 diamond edges.
    Each of the diamond edges forms a tip of a diamond edge angle in a cross section of the diamond grain.
    In particular, it can be provided that at least one, preferably all, diamond edge angle of the diamond grain have a value between 80 degrees and 100 degrees. For example, it may be the mean angle of each diamond edge. It can also be provided that these are the extreme values of each diamond edge.
    In a further embodiment of the body-grinding instrument may be provided that the blocky shape of the diamond grains is formed so that substantially a cuboid and / or cubic shape of a diamond grain is approximated, at least derived from the actual blocky shape of the diamond grain is, so that additional angles may be present, for example, by the fact that a wear of a diamond grain has taken place. In such an embodiment, for example, the term of a blocky diamond grain can also be interpreted as meaning that the diamond grain can be enveloped by a cuboid in such a way that the diamond grain is completely surrounded by a parallelepiped and fills at least 80 percent of the volume of this cuboid. It can be provided, for example, that a total of the diamond grains of the abrasive assumes a volume of 80 plus / minus 10 percent each of a cuboid, based on a normal distribution and the volume of the underlying cuboid for each diamond grain may be different.
    In particular, it can be provided that an expansion of the diamond grain in at least one spatial dimension at least substantially corresponds to an expansion of the ceramic grain in at least one spatial dimension. Substantially corresponding matching is given in particular with length deviations of less than 10 percent of the longer length. It may preferably be provided that an expansion of the diamond grain along an edge of the cuboid, which is approximated by the diamond grain, at least substantially corresponds to an expansion of the ceramic grain in a direction perpendicular to the long edge.
    This has the advantage that when the grains are aligned on the body-grinding instrument, both the diamond grains and the ceramic grains have approximately the same height. This has the advantage that both the diamond grains and the ceramic grains simultaneously come into contact with the surface to be ground.
    By the simultaneous use of a comparatively large proportion of ceramic grains and a comparatively small proportion of diamond grains corresponding to the proportions described, it is expected that the very advantageous abrasive properties of the ceramic grains, which in addition to a comparatively high hardness, which is in particular harder than the materials, which have the areas of the body to be removed and / or treated, and a comparatively high toughness, which would, for example, cause breakage of the tips by brittle fracture, are connected to one another. Thus, especially at low and moderate contact pressures, which are advantageous for grinding of the relatively soft materials of the areas of the body to be removed and / or treated, an efficient grinding of these materials can take place. At very high contact pressure of the body grinder on the body extremity, however, is expected that the very hard diamond counteracts a wear of the ceramic grains.
    In a further embodiment of the body-grinding instrument is provided that the ceramic grains have a corundum formed as sintered corundum. Sintered corundum refers to a corundum, which is obtained from very finely ground bauxite. The bauxite is ground to grain sizes of only a few microns. The ground bauxite is then pressed into molds, sintered and granulated after sintering by grinding.
    In a further embodiment of the body-grinding instrument can be provided, for example, that the ceramic grains at least predominantly have the material corundum. By the use of ceramic grains which have at least predominantly corundum, it is achieved in particular that the expense for producing the abrasive is reduced.
    In one embodiment of the grinding instrument can be provided, for example, that the abrasive is a quasi-homogeneous mixture of the diamond grains and the ceramic grains. The term quasi-homogeneity is to be understood to mean that there is a macroscopic order within which a number of diamond grains per area are within a bandwidth of a maximum of 5 percent deviation, regardless of the position within the grinding area. As an additional criterion of the quasi-homogeneity of the abrasive, it is also required that within the same macroscopic order, a number of diamond grains per area be within a bandwidth of a maximum of 5 percent deviation, regardless of the position within the grinding area.
    Another aspect of the invention includes a body and abrasive tool set. The grinder set has at least three body grinders. It will at least comprise: - a body-grinding instrument with a coarse abrasive, - a body-grinding instrument with a medium abrasive, and - a body-grinding instrument with a fine abrasive.
    Here, the coarse abrasive, the middle abrasive and the fine abrasive are different in particular in that both the ceramic grains and the diamond grains of the coarse abrasive have a larger grain size than both the ceramic grains and the diamond grains of the middle abrasive, and that Further, both the ceramic grains and the diamond grains of the middle abrasive have a larger grain size than both the ceramic grains and the diamond grains of the fine abrasive.
    Preferably, both the coarse abrasive as well as the middle abrasive and the fine abrasive is preferably provided that an extension of the diamond grain in at least one spatial dimension at least substantially an extension of the ceramic grain in a direction perpendicular to the long edge in coarse, medium and fine Abrasive corresponds.
    Particularly preferably, the body-grinding instrument on an abrasive instrument base body having a metallic embedding layer in a designated grinding area. The embedding layer may be provided as an electroplated embedding layer. The abrasive is attached over the embedding layer.
    The metallic embedding layer is preferably an embedding layer consisting at least for the most part of nickel.
    It can be provided, for example, that an average embedding height of the diamond grains and / or the ceramic grains in a radial direction of the body-grinding instrument is greater than 50 percent. Preferably, it can be provided that an average embedding height of the diamond grains and / or the ceramic grains in a radial direction of the body grinding instrument is between 60 percent and 75 percent. More preferably, the average embedding height of the diamond grains and / or the ceramic grains in a radial direction of the body grinding instrument is between 65 percent and 70 percent. Here, said proportionate embedding height refers to the respective total extension over a height of a diamond grain and / or ceramic grain in a radial direction of the body grinding instrument. An embedding performed as described has an advantageous combination of the highest possible desired exposure of abrasive long edges on the one hand with an achieved backup of the ceramic grains against breaking out during the grinding process on the other hand to the advantage.
    In the abrasive, a weight fraction of less than 50 percent by weight of the abrasive is present as diamond grains. These diamond grains are preferably in block formation.
    Furthermore, it can be provided, for example, that the long edge in the coarse abrasive a length of K1 between 200 Mii ^ r ^ or ^ e ^ tt ^ r - ^ / - 10 percent and 1800 microns +/- 10 percent, preferably between 200 microns +/- 10 percent and 300 microns +/- 10 percent. Furthermore, it can be provided that the long edge in the middle abrasive has a length of K2 between 85 micrometers + / 10 percent and 185 micrometers +/- 10 percent, preferably between 115 micrometers + / 10 percent and 130 micrometers +/- 10 percent, having. It can also be provided, for example, that the long edge of the fine abrasive has a length of K3 between 25 microns γ +/- 10 percent and 80 microns +/- 10 percent, preferably between 40 microns +/- 10 percent and 50 microns + / -10 percent.
    In a preferred embodiment it is provided that said values for K1, K2 and K3 indicate the boundaries of the areas within which the length of the long edge is located in a light microscopic determination.
    In a further refinement, it can furthermore be provided that the stated values are in each case an arithmetic mean value of all lengths of all long edges of the body-grinding instrument with a standard deviation for a gaussian normal distribution laid down.
    It is envisaged that the values described will be determined by means of light microscopy.
    The provided body-grinding tool set in particular offers the possibility of making an edit of existing surfaces depending on an individually present situation. For example, a grinding tool with a coarse abrasive may be provided for working on the epidermis of a skin, after which an abrasive article with a medium abrasive is used after penetration into the dermis and a fine abrasive article is used for subsequent treatment of the subcutaneous tissue of a skin becomes.
    It is envisaged that the diamond grains of the abrasive material are more likely to resist wear of a portion of the abrasive article having abrasive means, the higher the contact pressure of the abrasive article on the surface to be sanded, such as a body extremity.
    This is to be understood in particular as meaning the operative connection that there exists a region of contact pressure which has the area of the contact pressure intended for the intended use of the body-grinding instrument, within which a monotonous relationship between increasing contact pressure and increasing influence of the diamond grains on protection the ceramic grains from wear exists.
    Another aspect of the invention, which may be pursued independently as well as in combination with the other aspects of the invention, relates to a body-grinding tool set comprising a plurality of body-grinding instruments, comprising: a body-grinding instrument having a grinding-tool base body a first basic form, - a body-grinding instrument with a grinding-tool basic body with a second basic form and - a body-grinding instrument with a grinding-tool basic body with a third basic form, wherein the body-grinding instruments of the body-grinding tool set have a same abrasive in their grinding area , and wherein - the first basic shape, the second basic shape and the third basic shape have a similar configuration and differ only in their dimensions or - have the first basic shape, the second basic shape and the third basic shape in different embodiments.
    For example, it can be provided that, in different embodiments, the first basic shape, the second basic shape and the third basic shape have a substantially equal maximum cross-sectional area.
    The maximum cross-sectional area here refers to that cross-sectional area of each of the body-grinding instruments in an area provided with an abrasive which is maximum and perpendicular to the axis of rotation of the grinding head. Substantially equal maximum cross-sectional areas should include two next larger areas, the larger of which deviates by no more than 20 percent from their smaller ones.
    A use of a body-grinding instrument and / or a Körper-Schleifinstrumentensatzes is provided for example for one or more of the following uses: a processing of skin, namely in particular - processing of cornea, - treatment of dermatomycoses, a fungal infection of the skin, - Treatment of psoriasis, also called psoriasis, - processing, in particular removal of tattoos, age spots and / or scars, for processing nails, namely in particular - processing, in particular for molding, of finger and / or toenails, - processing of grypotic and mycotic nail material, - treatment of, for example, elastic, prefilling areas between nail bed end and nail end of artificial nail fixed on a natural nail and / or treatment, in particular adaptation, of orthoses.
    Further, there is provided sequential use first of a coarse abrasive body abrasive tool, then a middle abrasive body abrasive tool and a fine abrasives body abrasive tool, starting with the coarse abrasive body abrasive tool With increasing penetration a body-grinding instrument with increasingly finer abrasive is used.
    In particular, the depth-dependent sequential use of the different body-grinding instruments of a body-grinding tool set has the particular suitability for use for processing a tattoo, in particular their complete or partial removal result.
    Further advantageous embodiments and developments will be apparent from the following figures. However, the details and features of the figures are not limited to these. Rather, one or more features having one or more features from the above description may be linked to new designs. In particular, the following statements do not serve as a limitation of the respective scope, but explain individual features as well as their possible interaction with each other.
    It shows:
    Fig. 1: embodiments of a grinding tool basic body;
    Fig. 2: a grinding tool main body;
    Fig. 3: a body-grinding instrument;
    4 shows a schematic illustration of the concept of a long cane;
    5a-5b: schematic representations of a diamond grain;
    Fig. 5c-5e: schematic representations of a ceramic grain;
    6 shows an illustration of an embodiment of applied to the grinding tool body
    Abrasive;
    Fig. 7: an embodiment of a body-grinding tool set;
    8 shows a further embodiment of a body-grinding tool set.
    FIG. 1 shows three embodiments of a grinding tool main body 1, each in a side view. FIG. 1 a shows a first embodiment of a grinding tool main body 1. The grinding tool basic body 1 has a shaft 2, which has a step in the embodiment shown. At a shaft end 3 of the grinding tool base body 1 is clamped in a corresponding processing instrument and can thereby be brought by the processing unit to rotate. Furthermore, the grinding-tool main body 1 has a grinding area 4, which is intended to be coated on its surface at least in areas with an abrasive. In the embodiment of the grinding-tool main body 1 shown, it is a base body which, starting from the shank end 3, first cylindrically in the shank region 2 and then tapering conically to a rounded tip 6, which is designed like a cap in the embodiment shown. The grinding area 4 runs in the direction away from the shaft end 3 conically towards the tip 6 and tapers in this case. In the embodiment shown, the grinding tool main body 1 is rotationally symmetrical, in particular also the grinding region 4 is rotationally symmetrical, the axis of rotation of the grinding region 4 being identical to the axis of rotation of the shaft 2. This causes a uniform grinding is made possible during a rotation of the grinding tool body 1.
    1 b differs from the embodiment shown in FIG. 1 a, in particular by the shape of the grinding region 4. The grinding region 4 is formed in a substantially circular-cylindrical configuration, the design of the Shank end 3 further away end of the grinding area 4 does not conclude with a circular area, but instead also with a cap, similar, as shown in Fig. 1a.
    The embodiment of the grinding tool main body 1 shown in FIG. 1c differs from the embodiment shown in FIG. 1a as well as the embodiment shown in FIG. 1b in particular by the design of the grinding region 4, which has a bulbous configuration which extends from the connecting region of the grinding region 4 with the shaft 2 in the direction away from the shaft end 3 first increases in diameter and is formed conically tapering with further from the shaft end 3 growing distance on a cap-like tip 6.
    Further possible embodiments of a grinding tool main body 1 are shown in FIGS. 2a to 2e. Thus, for example, in the order of FIGS. 2a to 2e, grinding tool bases can be seen in disk-shaped, spherical, conical, circular-cylindrical and frusto-conical form.
    3a shows an embodiment of a body-grinding instrument 7, wherein the body-grinding instrument 7 of FIG. 3a substantially corresponds to the grinding-tool main body 1 of FIG. 1a, wherein the grinding region 4 is provided in regions with an abrasive 15.
    FIG. 3b shows a body grinding instrument 7, which in its basic form corresponds to the basic shape of the grinding tool main body 1 of FIG. 1b. In the embodiment of a body-grinding instrument 7 to be taken from FIG. 3b, an abrasive 15 is applied to the surface of the grinding area 4. In the embodiment of the body-grinding instrument 7 of FIG. 3b, the grinding area 4 is not provided with straight, line-like, edges, but provided with wavy edges.
    In Fig. 3c, an embodiment is shown, which is formed starting from the grinding tool main body 1 of Fig. 1c.
    FIG. 4 shows a schematic representation of a long edge. In FIG. 4, a section through a ceramic grain 11 is shown executed such that the long edge 12 is oriented perpendicular to the cut surface. With the legs 18 and 19, which bear against two outer surfaces of the ceramic grain 11, there are two axes that enclose the long edge. The two axes include an angle of less than 180 degrees in the ceramic grain 11 hinweisender direction. The edge 12 is thus a long edge in the sense of explanation.
    To detect the presence of a long edge, it is possible, for example, to provide evidence by means of light microscopy.
    FIG. 5 a shows an idealized schematic sketch of a diamond grain 8. The diamond grain 8 is illustrated in its macroscopic configuration as a block-shaped diamond grain 8 idealized. Shown is an embodiment of a diamond grain 8, which corresponds approximately to a basic cubic shape. Starting from the cubic basic shape of the diamond grain 8 shown in FIG. 5a, a first diamond edge angle 9 is shown, which lies between two surfaces which together form a diamond edge 10. As a blocky diamond grain 8 in particular such diamond grains are to be designated, for which the cubic body shown in Fig. 5a are formed as a complete envelope such that at least 80 percent of the volume of the cube shown in Fig. 5a are filled. FIG. 5b shows an embodiment of a diamond grain 8, which likewise has a diamond edge 10, and which, in contrast to the embodiment shown in FIG. 5a, is not designed as a sharp-edged edge but as an edge with a comparatively larger edge radius. Since the diamond grain 8 is provided essentially as a wear protection body and less than abrasive abrasive body, the smallest possible diamond edge radius and a resulting sharp edge of the diamond grain 8 is not required.
    FIGS. 5c, 5d and FIG. 5e show three embodiments of a ceramic grain 11. In the embodiment of the ceramic grains of FIGS. 5c, 5d and 5e shown, one respective long edge 12 ', one long edge 12 "and one long edge 12"' can be seen, in each case a corresponding long edge angle 13 ', 13 "and 13'" as well as in FIG Magnification of the long edge angle of Fig. 5c a long edge radius 14, which forms by the idealized approach of a circle with a long edge radius 14 to the top of the long edge angle 13. FIGS. 5c, 5d and 5e in particular denote formations of a ceramic grain 11, which are formed as a cylindrical body with a triangular base. Such a configuration of a ceramic grain 11 can be achieved for example by extrusion with subsequent sintering. In the embodiment of FIGS. 5d and 5e, the long edges 12 "and 12 '" are oriented parallel to the longitudinal extension of the ceramic grain. Furthermore, the long edges 12 "and 12 '" extend along the entire longitudinal extension of the ceramic grain. These are merely schematic representations which are intended to illustrate the individual terms.
    Furthermore, it can be seen in FIGS. 5c, 5d and 5e how different configurations of the ceramic grain 11 can only result from an imaginary long stretch of an otherwise identically shaped ceramic grain 11. Thus, the three shown ceramic grains 11 of FIGS. 5c, 5d and 5e differ at the same long edge angle 13, the same base area and the same long edge radius 14 only by the length of the long edges 12. In the embodiment shown, an aspect ratio results by dividing a length of the long edge 12 and the shortest height of the triangle representing the footprint.
    FIG. 6 shows an embodiment of the abrasive 15 applied to the grinding tool base body 1. The abrasive agent 15 applied to the grinding tool base body 1 is a mixture which results from a substantially quasi-homogeneous mixture of blocky diamond grains 8 with elongated ceramic grains 11. The abrasive 15 is applied in an undirected orientation.
    A body abrasive article with the coarse abrasive made according to the example of Fig. 6 has a long edge length of 256 microns +/- 44 microns. In the medium abrasives body sanding tool, the length of the long edge is 126 microns +/- 36 microns. In the body abrasive article with the fine abrasive, the length of the long edge is 46 microns +/- 24 microns. The values given are each the desired value of the length of the long edges of the ceramic grains and an area within which a length of the long edge is located. The stated values of the length of the long edges were determined optically by light microscopy. Furthermore, the proportion by weight of the diamond grains in the three mentioned cases of the body-grinding instruments produced according to the example of FIG. 6 is 10% by weight.
    FIG. 7 shows an embodiment of a body-grinding tool set 16. The body-grinding tool set 16 of Fig. 7 comprises three body-grinding instruments, 7 ', 7 "and 7'". The three body-grinding instruments 7 ', 7 "and 7'" of FIG. 7 have a grinding area 4, wherein each of the body-grinding instruments has a circular cylindrical grinding head whose outer surface acts as a grinding area 4 and on its grinding area in each case an abrasive 15 is available. The body-grinding instruments 7 ', 7 "and 7'" of FIG. 7 in this case have an abrasive 15, so that, for example, grain size distributions and other property parameters are comparable. Preferably, the abrasive 15 of the body abrasives 7 ', 7 ", and 7"' of a body grinder set 16 are of identical manufacturing procedure and batch. The grinding heads and the grinding area 4 of the three body grinding instruments 7 ', 7 "and 7" of Fig. 7 differ from each other by scaling the dimension in all three dimensions of the space, so that the first basic form of the body-grinding instrument 7', the second The basic shape of the body-grinding instrument 7 "and the third basic form of the body-grinding instrument 7 '" of Fig. 7 have the same configuration and differ only in their dimensions.
    FIG. 8 shows a further embodiment of a body-grinding tool set 16. The body-grinding tool set 16 of Fig. 8 comprises three body-grinding instruments, 7 ', 7 "and 7". The body-grinding instruments 7 ', 7 "and 7"' of the body-grinding tool set 16 of FIG. 8 comprise an abrasive 15. The body-grinding instruments 7 ', 7 "and 7"' differ in the configuration of the circular-cylindrical first basic shape of the body-grinding instrument 7 ', the cone-shaped second basic form of the body-grinding instrument 7 "and the frustoconical third basic shape of the body Grinding Instruments 7 ". The three body grinders, 7 ', 7 "and 7"' of the body-grinding tool set 16 of FIG. 8 have at least substantially the same maximum cross-sectional area, the maximum cross-sectional area of the three body grinders 7 ', 7 "and 7". 'Is identical and this is in each case to the shaft facing base of the three basic shapes circular cylinder, cone and truncated cone.
    权利要求:
    Claims (15)
    [1]
    A rotatable body-sharpening instrument (7) for skin and nail care, comprising a grinding tool main body (I) with a shank (2) for clamping and a grinding area (4), on whose surface an abrasive (15) is applied, wherein the abrasive (15) is present at least substantially as a mixture of diamond grains (8) and ceramic grains (II), and wherein the ceramic grains (11) comprise at least one oxide ceramic, wherein the weight fraction of diamond grains on the abrasive (15) is less than 50% by weight Percent.
    [2]
    2. body grinding instrument (7) according to claim 1, characterized in that a ceramic grain (11) of the abrasive means (15) has an elongated basic shape with at least one long edge (12) which forms a cutting edge.
    [3]
    3. body-grinding instrument (7) according to claim 2, characterized in that the long edge (12) of the ceramic grain (11) is at least partially sharp-edged.
    [4]
    4. body grinding instrument (7) according to claim 3, characterized in that the long edge (12) formed as an acute angle at an angle of less than 90 degrees long edge angle (13) and / or a long edge radius (14) of less than 50 Micrometer, preferably less than 10 micrometers, more preferably less than 5 micrometers.
    [5]
    5. body-grinding instrument (7) according to one of claims 2 to 4, characterized in that the long edge has a length K between 25 microns +/- 10 percent and 1800 microns +/- 10 percent, wherein - the long edge in a coarse Abrasive having a length of K1 between 200 microns +/- 10 percent and 1800 microns +/- 10 percent, - the long edge for a medium abrasive, a length of K2 between 85 microns +/- 10 percent and 185 microns +/- 10 percent and / or the long edge of a fine abrasive has a length of K3 between 25 microns +/- 10 percent and 80 microns +/- 10 percent.
    [6]
    6. body grinding instrument (7) according to any one of the preceding claims, characterized in that a diamond grain (8) of the abrasive (15) in block formation, preferably substantially cuboidal shape, particularly preferably substantially cubic shape, and in this case a number of diamond edges (10), preferably a number of 12 diamond edges (10) each having a diamond edge angle (9).
    [7]
    7. body grinding instrument (7) according to claim 6, characterized in that at least one, preferably all, diamond edge angle (9) have a value between 80 ° and 100 °.
    [8]
    8. body grinding instrument (7) according to any one of the preceding claims, characterized in that the ceramic grains (11) have a formed as a corundum oxide ceramic, which is preferably formed as sintered corundum.
    [9]
    9. body grinding instrument (7) according to any one of the preceding claims, characterized in that the abrasive means (15) is a quasi-homogeneous mixture of the diamond grains (8) and the ceramic grains (11).
    [10]
    10. body grinding instrument (7) according to any one of the preceding claims, characterized in that a grinding instrument base body (1) is present, which has a metallic, preferably made of nickel, embedding layer in a designated grinding area (4), wherein the Embedding layer is applied galvanically and the abrasive (15) is fixed over the embedding layer.
    [11]
    11. Body grinding instrument (7) according to claim 10, characterized in that in the embedding layer an average embedding height of the diamond grains and / or the ceramic grains is greater than 50 percent, preferably between 60 percent and 75 percent, particularly preferably between 65 percent and 70 Percent.
    [12]
    A body-grinding tool set (16) comprising body grinding instruments (7) according to any one of claims 2 to 11, comprising: - a body-grinding instrument (7) with a coarse abrasive (15), a length of the long edge of K1 between 200 Micrometer +/- 10 percent and 1800 microns +/- 10 percent comprising - a Body Abrasive (7) with a Medium Abrasive (15), a long edge length of K2 between 85 microns +/- 10 percent and 185 microns + Having -10 percent, and having a body abrasive article (7) with a fine abrasive (15) having a long edge length of K3 between 25 micrometers +/- 10 percent and 80 micrometers +/- 10 percent, both the ceramic grains as well as the diamond grains of the coarse abrasive have a larger grain size than both the ceramic grains and the diamond grains of the middle abrasive, and that further - both the ceramic grains and the diamond grains of the average eren abrasive have a larger grain size than both the ceramic grains and the diamond grains of the fine abrasive.
    [13]
    A body-grinding-tool set (16) comprising body-grinding instruments (7) according to any one of claims 1 to 11, comprising: - a body-grinding instrument (7 ') having a grinding-tool base (1) with a first basic shape; A body-grinding instrument (7 ") having a grinding-tool base body (1) with a second basic shape, and - a body-grinding instrument (7 '") with a grinding-tool base (1) having a third basic shape, wherein the body-grinding instruments (7 ', 7 ", 7"') of the body-grinding tool set (16) in their grinding area (4) have a same abrasive (15), and wherein - the first basic shape, the second basic shape and the third basic shape have a same configuration and differ only in their dimensions or - the first basic form, the second basic form and the third basic form have different configurations.
    [14]
    14. Use of a body sanding instrument (7) according to one of claims 1 to 11 for skin and nail care, namely in particular - for processing cornea, -working, in particular removal, of tattoos, age spots and / or scars, - for shaping of fingernails and / or toenails, or for machining, for example elastic, prefilling areas between nail bed end and nail end of artificial nail fixed on a natural nail.
    [15]
    15. Use of a body-grinding tool set (16) according to any one of claims 12 or 13 for skin and nail care, namely - for processing corneas, -zur editing, especially removal of tattoos, age spots and / or scars, - for shaping of fingernails and / or toenails, or for machining, for example elastic, prefilling areas between nail bed end and nail end of artificial nail fixed on a natural nail.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE202014101739U1|2014-05-09|Abrasive grain with knots and extensions
    EP2692820A1|2014-02-05|Abrasive grit with base surface, ridge and opening
    DE102013212634A1|2014-12-31|abrasive
    EP2692821A1|2014-02-05|Abrasive grit with base body and top body
    DE102006042762B3|2008-04-03|Method for producing a surgical instrument
    DE202008015821U1|2009-03-19|Rotating tool for nail work
    DE102014010033B4|2018-07-12|Rotating body-grinding instrument
    DE102015208491B4|2019-03-14|Polycrystalline diamond body, cutting tool, wear-resistant tool, grinding tool and method for producing a polycrystalline diamond body
    DE102005003496A1|2006-07-27|Drill tool, comprising main cutting edge provided with protective chamfer of varying shape
    DE102018212732A1|2020-02-06|Shaped ceramic abrasive grain, process for producing a shaped ceramic abrasive grain, and abrasive article
    EP1031325B1|2007-05-30|Dental tool
    DE102016120863A1|2017-05-11|Sintered, polycrystalline, flat-shaped, geometrically structured ceramic abrasive element, process for its preparation and its use
    EP3137254A1|2017-03-08|Tool
    DE102010025677A1|2011-02-17|dressing tool
    DE102010045836A1|2012-03-22|Shaping tool for grinding tools, includes processing section having a top processing surface on which positive abrasive particles are applied galvanically
    DE102018110994A1|2019-11-14|Apparatus and method for fine machining toothed and hardened work wheels
    DE102018222444A1|2020-06-25|Shaped ceramic abrasive grain and process for producing a shaped ceramic abrasive grain
    CH707009A2|2014-03-31|Producing an internal structure of a ceramic implant or a ceramic construction element.
    DE102020115476A1|2021-12-16|Abrasive with an abrasive skeleton
    DE102005016523B4|2008-03-06|Tool for processing zirconium oxide
    DE202020000786U1|2021-05-31|Polishing tool
    DE2902399A1|1979-08-02|TOOTH GRINDING TOOL
    DE202012009800U1|2012-11-15|Diamond grinding tool
    EP2564803B1|2016-11-30|Tool for preparing surfaces of dental materials
    AT515587B1|2017-05-15|Schleifteilchenagglomerat
    同族专利:
    公开号 | 公开日
    DE102014010033B4|2018-07-12|
    CH708310A2|2015-01-15|
    DE202013006268U1|2013-08-02|
    DE102014010033A1|2015-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US6640811B2|2001-12-03|2003-11-04|Yong Hoon Cho|Portable nail care device|
    DE202006006564U1|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|
    DE202008015821U1|2008-12-01|2009-03-19|Busch & Co. Kg|Rotating tool for nail work|DE202014001414U1|2014-02-17|2014-04-25|Daniel Bolz|Device for removing the epidermis with changeable, surgical tool - Biopsy Punch|
    CN105919657A|2016-05-02|2016-09-07|应国珍|Foot callus grinding machine|
    法律状态:
    2017-06-30| AZW| Rejection (application)|
    2017-07-31| AECN| Continuation of proceedings agreed|Free format text: DIE PATENTANMELDUNG IST AUFGRUND DES WEITERBEHANDLUNGSANTRAGS VOM 31.07.2017 REAKTIVIERT WORDEN. |
    2018-02-28| AZW| Rejection (application)|
    2018-04-16| AECN| Continuation of proceedings agreed|Free format text: DIE PATENTANMELDUNG IST AUFGRUND DES WEITERBEHANDLUNGSANTRAGS VOM 16. APRIL 2018 REAKTIVIERT WORDEN. |
    2020-05-29| AEN| Modification of the scope of the patent|Free format text: :DIE PATENTANMELDUNG IST AUFGRUND DES WEITERBEHANDLUNGSANTRAGS VOM 16. APRIL 2018 REAKTIVIERT WORDEN. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE201320006268|DE202013006268U1|2013-07-12|2013-07-12|Rotating body-grinding instrument|
    [返回顶部]