• 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:
    Multiangular abrasive disc for sanders. It allows to provide several working angles in a single tool for sanding/polishing pieces with abrasion material of different size and/or type, said material being placed in different inclination planes, avoiding having to replace and replace the abrasive disc continuously, or having to acquire several sanding machines, the abrasive disk (1) comprising a rotating support (10) provided with a shaft or central hole (2) for coupling and driving, where said support (10) has a plurality of rings (11, 12, 13, 14), which extend radially from the central axis (2) towards the outer perimeter of the support (10); said concentric rings (11, 12, 13, 14) being located at angles of inclination (α 1, α 2, α 3) different from each other, with respect to a horizontal plane (h) of the support (10); and wherein said rings (11, 12, 13) have an abrasion material (g1, g2, g3) adhered and/or bonded on its surface. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2639374A2
    申请号:ES201630527
    申请日:2016-04-26
    公开日:2017-10-26
    发明作者:Abel Fernando PEREIRA DE OLIVEIRA
    申请人:Abel Fernando PEREIRA DE OLIVEIRA；
    IPC主号:
    专利说明:

    image 1 DESCRIPTION
    Multiangular abrasive disc for sander machines OBJECT OF THE INVENTION
    The present invention belongs to the field of sanding and polishing machines, and more specifically to tools for working with grinding wheels or abrasive discs, provided on their surface with abrasive materials to debase and polish surfaces of different nature, be it wood, metal, stone, etc.
    The object of the present invention is a multiangular abrasive disk for sander machines, which in addition to providing a homogeneous and complete quality polishing of the workpiece, allows abrasion material of different types and / or sizes of abrasion to be bonded into a single tool. abrasive grains, said abrasion material and / or grains located on surfaces at different planes, avoiding having to continuously replace and replace the abrasion disk or having to have several sander machines in the workshop. BACKGROUND OF THE INVENTION
    Nowadays, sanders, or polishing machines, perhaps better known as radial machines, are widely known in the industrial and DIY sector.
    These sander machines basically consist of a “grinding wheel” or rotating abrasion disc, electrically operated through the rotation of its central axis or mandrel. Generally on the discs an abrasive sheet is disposed that incorporates in its surface multitude of grains of a certain size to mechanise pieces of work of different materials (stone, metal, wood, etc.). More particularly, the size of these grains is normalized, from just a few microns (8-10 µm) to several tens, hundreds or thousands of microns (1200 µm) depending on the application and the level of roughing or polishing desired. Thus, the abrasive grain selected to perform a sanding job should not be too thin, so that it does not get enough wear on the surface, or so thick that it causes sanding marks that cannot be corrected or subsequently covered by the paint product that It will be applied, in case there is a subsequent painting phase.
    image2
    As an example, the Spanish utility model ES1026429 U relating to a sanding disc provided with a plurality of independent sanding strips can be cited; or the European patent translation ES2365302 T3, in which an abrasive material support disc for power tools is described. Also, the ES2546673 T3 patent is known, referring to a multi-abrasive tool that incorporates a plurality of grains of different sizes, all of them being located in the same horizontal plane of the disk, and acting with all the grains at the same time on the workpiece. . This produces uneven uneven roughing, where the user does not have real control over the type of polishing / sanding being performed. Therefore, several drawbacks have been detected in the current abrasion discs, among which at least the following stand out:
    -The current discs have a single type and size of grain, or thickness of abrasive material, on its surface, which is the inconvenience that the user has to replace and replace the disc of his sander machine every time he needs a different grain for optimum grinding and polishing of the work piece. This entails a significant loss of time for the operator, not to mention the inconvenience caused by having to stop his work, search and select the new disk and reinstall it properly on the machine, which reduces the efficiency of the process and produces “ dead times".
    -The previous point is resolved in some cases with the existence of several sander machines in the same workshop, each with a specific grain size. As it is logical to think, the purchase and acquisition of each one of the machines supposes a high economic cost.
    -On the other hand, there are discs such as the one described in the ES2546673 T3 patent mentioned above, which do incorporate grains of different sizes, but the problem that entails is that the operator cannot control or decide when to act with one type of grain or another, because all the grains are arranged or glued in the same horizontal plane, and therefore, all of them act at the same time on the workpiece, with the consequent doubtful result, obtaining a polished piece of low quality and defective finish.
    image3 DESCRIPTION OF THE INVENTION
    By means of the present invention, the aforementioned drawbacks are solved by providing a multiangular abrasive disk for sander machines, which allows different working angles to be bonded together, preferably with abrasive material or grains of different types and / or sizes, avoiding having to replace and continually replace the abrasion disc or have to purchase several sander machines. In this way, dead times are eliminated, making the process of polishing or roughing of pieces of different nature faster, more efficient, be it metal, stone, wood, etc., all with a comfortable and simple handling of the disc described here. .
    The abrasive disk of the invention comprises a rotating support provided with a central axis or hole for its actuation, where the support has a plurality of concentric rings with the central axis, which extend radially from the central axis towards the outer perimeter of the support. Said concentric rings are located at different angles of inclination from each other, relative to a horizontal plane of the support, and have an abrasion material adhered and / or glued on its surface.
    Preferably, each of the concentric rings has an abrasion material of different size and / or type. In this way, by means of a single disc, the operator can proceed with the sanding / polishing of a piece completely and quickly, moving from one concentric ring to another, depending on the degree of roughing that is desired.
    Thus, the abrasive disk of the invention allows to provide more than one operative angle of abrasion (multiangular character), having a perimeter surface arranged in each of its rings, suitable for receiving abrasive material or grains of different size and / or type (multi-abrasive character), intended for roughing or polishing pieces of different material, be it metal, stone, wood, etc. In this way, by means of a single sander machine equipped with the abrasive disc of the invention, an operator can complete a whole sanding / polishing process of one piece without stopping to change the disc, starting to work, for example, with the grain surface of more thickness. large, with which a greater initial roughing of material is achieved, to subsequently go to work with the surface of medium grain with no more than slightly tilting the machine, and finally proceed with the surface that carries impregnated grains of smaller size, to a finer and more precise work, where what is sought is the perfect and homogeneous finish of the piece.
    image4
    According to a preferred embodiment, it is provided that each of the concentric rings can have at least one free section of its surface, that is, without abrasion material on said free section, such that the polishing of a piece by means of the material Abrasion of a ring is executed without interference or contact with the abrasion materials of adjacent rings. This particularity allows to guarantee an optimal sanding and / or polishing procedure, so that the different materials and / or abrasive grains, corresponding to different concentric rings, never get to contact at the same time about the piece that is being worked, which could cause defects or inaccuracies of polishing.
    In addition, the abrasive disc of the invention allows to pass quickly and immediately from one phase of roughing to another, without further tilting the machine slightly, until it seeks contact with the desired ring surface. This allows to correct small defects of the piece not discovered at first, quickly moving from one surface to another of the disk, obtaining a final piece of high quality and homogeneous finish, in a shorter time and with a lower total cost compared to the current systems and abrasion discs. DESCRIPTION OF THE DRAWINGS
    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:
    image5
    Figure 1.- Shows a bottom perspective view of the multiangular abrasive disc according to a first preferred embodiment of the invention.
    Figure 2.- Shows a sectional view of the disk of Figure 1 along the axis of cut A-A ’.
    Figure 3.- Shows a bottom perspective view of another multiangular abrasive disc according to a second preferred embodiment.
    Figure 4.- Shows a bottom perspective view of another multiangular abrasive disc according to a third preferred embodiment.
    Figure 5.- Shows a sectional view of the disk of Figure 4 along the axis of cut B-B ’.
    Figure 6. - It shows a fourth embodiment of the abrasive disk, the rings being constituted in this case by independent parts that can be coupled together. PREFERRED EMBODIMENT OF THE INVENTION
    Several examples of preferred embodiment are described below with reference to the aforementioned figures, without limiting or reducing the scope of protection of the present invention.
    According to a first preferred embodiment, shown in Figures 1 and 2, the multiangular abrasive disk (1) comprises:
    - a rotating support (10) provided with a central axis or hole (2) for its actuation, which has in this first embodiment three concentric rings (11, 12, 13), which extend radially from the central axis (2) towards the outer perimeter of the support (10),
    -where said concentric rings (11, 12, 13) are located at different angles of inclination (α1, α2, α3), relative to a horizontal plane (H) of the support (10), as shown in the figure 2,
    image6
    - and where said rings (11,12, 13) also have an abrasion material (G1, G2, G3), in the present example of different grain size and / or type, adhered and / or glued on its surface.
    Thus, as can be seen in figures 1 and 2, each of the concentric rings (11, 12, 13) has at least one free section (d1, d2, d3) of its surface, that is, sections without material abrasion (G1, G2, G3), which define a separation distance between the different abrasion materials of each of the rings (11, 12, 13). This feature allows the polishing of a piece to be carried out by means of the abrasion material (G2) of a ring (12) without interference or contact with the abrasive materials (G1, G3) of adjacent rings (11, 13) . In this way, an optimum finish of the piece being worked is guaranteed at all times, since said free sections (d1, d2, d3) constitute a safety distance between each of the abrasion materials (G1, G2, G3) , avoiding the simultaneous rubbing of them on the workpiece.
    Furthermore, in the abrasive disk (1) shown in Figure 1, it is observed that the free sections (d1, d2, d3) of each of the concentric rings (11, 12, 13) have a plurality of through holes (20 ) distributed equidistant from each other, along the entire perimeter of the rings (11, 12, 13). These through holes (20) have visibility and reference functions, so that the operator has an additional element to control at all times the sanding / polishing procedure, and to know which ring (11, 12, 13) is being worked on, thus favoring the maintenance of the same angle of inclination of the sanding machine on the piece being worked, affecting only the desired ring (11, 12, 13) in each case.
    At this point, it should be noted that due to the different radii of the rings (11, 12, 13), it is expected that the amount of abrasive material (G1, G2, G3) adhered and / or glued in each of the rings (11, 12, 13) is such that it allows the abrasive disc (1) to be discarded with all the rings worn at the same time, or with a level of wear as equal as possible. This possibility has been considered to improve the efficiency and useful life of the abrasion disk (1), in order to prevent a ring from being totally unusable due to the extreme wear of its abrasion material, while the rest of the rings still have several uses ahead before disposal, with a large amount of excess abrasion material.
    image7
    More specifically, in the example of Figure 2 the first ring (11) has an angle (α1) of 0 °; the second ring (12) has an angle (α2) between 15 ° and 45 °; and the third ring
    (13) has an angle (α3) of 90 ° with respect to the horizontal plane (H) of the support (10). In this way, three working angles are provided, preferably with different abrasion material (G1, G2, G3), so that by means of a single abrasive disk (1) the operator is able to work completely, quickly and efficiently. piece, without the need to replace the abrasive disc (1). Thus, the operator can move in a controlled and immediate way from one angle of work to another, that is, impacting with the abrasive material of one or another ring, as many times as he wishes, in order to correct small defects of the workpiece and achieve a better finish, which results in a higher quality of the product finally obtained.
    Although the most useful and interesting application of the invention is the provision of abrasive materials of different grain size and / or type of abrasive material, for different levels of roughing, it is provided that each of the rings and their respective angles of work can incorporate the same grain size or thickness of abrasive material.
    According to a second preferred embodiment, shown in Figure 3, the abrasive disk (1) has the through holes (20) made in the ring surface itself
    (12) where the abrasive material (G2) is adhered and / or glued, that is, each of the through holes (20) are surrounded by their sides with sheets of abrasive material (G2). Thus, as seen in said figure 3, it is provided that the abrasive material (G1, G2, G3) of each of the rings (11, 12, 13) may be adhered and / or glued intermittently, so that you get a greater impact on the piece to work. According to a third preferred embodiment, shown in Figures 4 and 5, the first ring (11) is a closed plate (11 ') on which a disposable abrasive material (30), such as a sponge or paper, is disposed. Sanding, by means of a velcro® type joining system, as shown in Figure 4. In addition, unlike the previous embodiments, in this third embodiment the abrasive disk (1) includes a fourth ring (14) located between the first ring (11 ') and the second ring (12), with different angle of inclination with respect to said rings (11', 12), where this fourth ring (14) has no abrasion material and is adapted to include therein through holes (20) above. This fourth ring (14) also acts as a spacer and / or separation element between the different abrasion materials (30, G2) of each of the adjacent rings (11 ', 12), thus guaranteeing an optimal polishing / sanding process with a single abrasion material, thus constituting an additional safety element to prevent abrasion materials of different adjacent rings from being able to influence the workpiece at the same time.
    image8
    For this third embodiment, it is also provided that the central shaft or hole (2) of the support (10) can have an internal thread, not shown in the figures, to favor the coupling and rotation movement of the abrasive disk (1) by means of a threaded joint in the mandrel, bolt or corresponding mechanism of the sanding machine.
    Thus, according to the three embodiments mentioned above, the concentric rings (11, 12, 13, 14) are joined together forming a single body, that is, a single piece. More particularly, in the first two embodiments, figures 1 to 3, the abrasive disk (1) has three rings (11, 12, 13), where a first ring (11) is the one with the lowest radius and is located closer to the central axis (2), while a third ring (13) is the one with the greatest radius and is located furthest from said central axis (2), constituting the perimeter edge of the abrasive disk (1). On the other hand, as already mentioned, in the third embodiment the abrasive disk (1) includes four rings (11, 12, 13, 14), there being a fourth ring (14) located between the first ring (11 ') and the second ring (12), without abrasion material and suitable for including through holes (20), also constituting a separation element between the abrasion materials of adjacent rings. Notwithstanding the foregoing, it is envisioned that the abrasive disc described herein may incorporate any other number of concentric rings, in order to use them as a separation distance, or include a greater or lesser number of different abrasion materials and / or different sizes of abrasive grains
    image9
    Preferably, the abrasion material (G1, G2, G3) are abrasive sheets, where the abrasive sheets of the first and second ring (11, 12) are partially superimposed on each other, as seen in Figures 1, 3 and 4 ; while the abrasive sheets of the third ring (13) are arranged perpendicular to the surface of said ring (13). Notwithstanding the foregoing, it is envisaged that they may have another arrangement, according to each application, so that the different rings (11, 12, 13, 14) may have another random order according to the user's needs, that is, the rings without Abrasion material, totally or partially covered with material, could have another distribution to that shown in the figures. Furthermore, it has been envisioned that said abrasion sheets may have different shapes and configurations, be they rectangular, square, triangular, or any other geometric shape, without the essence of the present invention changing in any way.
    On the other hand, it is foreseen that between each pair of abrasive sheets there may be another flexible and / or spongy material that serves as a buffer to the sheets, to make sanding / polishing softer.
    In addition, the possibility that the abrasion material (G1, G2, G3) may be constituted by granulated, adhered and / or glued particles in the concentric rings (11, 12, 13), or may consist of wool, has been contemplated of steel, sponges or similar to work together with abrasive pastes. Regarding the different size of the grains, it is foreseen that the order of thickness can be random according to the wishes of the operator, where preferably the grain size is distributed from highest to lowest, that is, the first ring (11) contains a grain thicker, while the third ring (13) has a finer grain attached, the second ring (12), or intermediate ring, being the medium sized one.
    On the other hand, according to a fourth preferred embodiment, shown in Figure 6, the concentric rings (11, 12, 13) are independent pieces, attachable and / or interlocked with each other on top of each other. In this way the different parts, with their different working angles, constitute a set or “kit” to be assembled and / or disassembled by the operator. These pieces can therefore be purchased separately, for subsequent coupling according to the degree of inclination, size and / or type of abrasion material desired.
    image10
    权利要求:
    Claims (15)
    [1]
    image 1
    1.-Multiangular abrasive disc (1) for sander machines, comprising a support
    (10) swivel equipped with a central axis (2) for its drive, characterized in that:
    - the support (10) has a plurality of rings (11, 12, 13, 14) concentric with the central axis (2), which extend radially from the central axis (2) to the outer perimeter of the support (10),
    - where said concentric rings (11, 12, 13, 14) are located at different angles of inclination (α1, α2, α3), relative to a horizontal plane (H) of the support (10), and
    -where said rings (11, 12, 13, 14) have an abrasion material (G1, G2, G3) adhered and / or glued on their surface.
    [2]
    2.-Abrasive disc (1) according to claim 1, characterized in that each of the concentric rings (11, 12, 13, 14) have an abrasion material (G1, G2, G3) of different types and / or abrasive grain size.
    [3]
    3. Abrasive disc (1) according to any one of the preceding claims, characterized in that each of the concentric rings (11, 12, 13) has at least one free section (d1, d2, d3) of surface, without abrasion material (G1, G2, G3), such that the polishing of a piece by means of the abrasion material (G2) of a ring (12) is performed without interference or contact with the abrasion materials (G1, G3) of adjoining rings (11, 13).
    [4]
    4. Abrasive disc (1) according to claim 1, characterized in that the concentric rings (11, 12, 13, 14) have a plurality of through holes (20) distributed equidistant from each other, along of the entire perimeter of said rings (11, 12, 13, 14).
    [5]
    5.-Abrasive disc (1) according to claims 3 and 4, characterized in that the through holes (20) are made in the free sections (d1, d2, d3) of each of the rings (11, 12, 13).
    12
    image2
    [6]
    6. Abrasive disc (1) according to claim 4, characterized in that the through holes (20) are made in the surface of the ring (12) where the abrasive material (G2) is adhered and / or glued.
    [7]
    7. Abrasive disc (1) according to any one of the preceding claims, characterized in that the concentric rings (11, 12, 13) are joined together forming a single body.
    [8]
    8. Abrasive disc (1) according to any one of the preceding claims 1-4, characterized in that the concentric rings (11, 12, 13) are independent pieces, attachable and / or interlocked with one another.
    [9]
    9. Abrasive disc (1) according to any one of the preceding claims, characterized in that it has three concentric rings (11, 12, 13), where a first ring (11) is the one with the smallest radius and is located closest to the central axis (2), while a third ring (13) is the one with the greatest radius and is located furthest from said central axis (2).
    [10]
    10. Abrasive disc (1) according to any one of the preceding claims 18, characterized in that it has four concentric rings (11, 12, 13, 14), wherein a fourth ring (14) has a different inclination angle to of the rest of the rings (11, 12, 13), without abrasion material, and having a plurality of through holes (20) on its surface.
    [11]
    11. Abrasive disc (1) according to claim 1, characterized in that the abrasion material (G1, G2, G3) are abrasive sheets.
    [12]
    12. Abrasive disc (1) according to claims 9 and 11, characterized in that the abrasive sheets of the first and second ring (11, 12) are partially superimposed on each other. 13. Abrasive disk (1) according to claims 9 or 10, and 11, characterized in that the abrasive sheets of the third ring (13) are arranged perpendicularly
    13
    image3
    to the surface of said third ring (13).
    [14]
    14. Abrasive disc (1) according to claim 9 or 10, characterized in that the first ring (11) is a closed plate (11 ') on which a disposable abrasive material 5 (30) is arranged, such as a sponge or sanding paper, using a velcro® type joining system.
    [15]
    15.-Abrasive disk (1) according to claim 1, characterized in that the abrasion material (G1, G2, G3) are granulated, adhered and / or glued particles in the concentric rings (11, 12, 13) .
    [16]
    16. Abrasive disc (1) according to claim 1, characterized in that the abrasion material (G1, G2, G3) are steel wool, sponges or the like.
    fifteen
    14
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    同族专利:
    公开号 | 公开日
    ES2639374R1|2017-11-29|
    ES2639374B1|2018-09-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN111805359A|2020-07-16|2020-10-23|绍兴市神龙铝塑制品有限公司|Finishing treatment device for aluminum product processing production and operation method thereof|US2451295A|1944-11-08|1948-10-12|Super Cut|Abrasive wheel|
    WO2001076821A1|2000-04-05|2001-10-18|Sankyo Diamond Industrial Co., Ltd.|Grinding stone|
    EP1292428B1|2000-06-19|2005-04-20|Struers A/S|A multi-zone grinding and/or polishing sheet|
    DE102009025116A1|2009-06-11|2010-12-16|Dronco Ag|Grinding and / or polishing tool and manufacturing method|
    法律状态:
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    优先权:
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