EP1607181A1 - Abrasive body - Google Patents
Abrasive body Download PDFInfo
- Publication number
- EP1607181A1 EP1607181A1 EP04425440A EP04425440A EP1607181A1 EP 1607181 A1 EP1607181 A1 EP 1607181A1 EP 04425440 A EP04425440 A EP 04425440A EP 04425440 A EP04425440 A EP 04425440A EP 1607181 A1 EP1607181 A1 EP 1607181A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abrasive body
- abrasive
- tongues
- central portion
- anyone
- 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
- 210000002105 tongue Anatomy 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000013013 elastic material Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000003082 abrasive agent Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000007767 bonding agent Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
-
- 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
- B24D9/08—Circular back-plates for carrying flexible material
- B24D9/085—Devices for mounting sheets on a backing plate
Definitions
- the present invention relates to an abrasive body set to be used in machines designed to carry out working operations by abrasion; in particular the abrasive or sanding disks in accordance with the invention are intended for surface finishing of manufactured articles or for preparing predetermined treatments of same.
- the apparatus of known type generally have a load bearing machine body to first of all bear a corresponding supporting wheel and to set the latter in rotation around an axis thereof.
- the supporting wheel is in turn such envisaged as to be able to receive a suitable sanding disk in engagement, said disk having a work surface that, under operating conditions, is designed to face the article of manufacture to be worked.
- This work surface carries the necessary abrasive material to enable working by material removal.
- the above machines can also enable suction of the powders generated by the action of the abrasive body on the surface being worked and conveying of said powders to appropriate collection regions to allow a healthier and cleaner work environment.
- sanding disks consisting of a support of paper material carrying the abrasive material, said disks being connected with the respective supporting wheel by an adhesive or a coupling involving use of a tape fastener of the so-called "Velcro" type.
- the sanding disk too must have holes of the same features as those of the supporting wheel and in register with the latter to allow passage of the abrasive powders.
- the sanding disks in accordance with this type of solution are made of paper or cloth material and are brought into engagement with the respective supporting wheel by turning the tongues down and engaging them through the holes to the corresponding pins integral with the supporting wheel.
- a supporting wheel having a perimeter portion made of deformable material enables engagement between the sanding disk and the supporting wheel; the presence of tongues and the respective pins allows the suction holes of the sanding disk and those of the supporting wheel to be in register.
- the present invention aims at making available a sanding disk ensuring an optimal grip on the supporting wheel also during the operations for material removal.
- an abrasive body in accordance with the present invention has been generally identified by reference numeral 1.
- the abrasive body therein shown consists of a central portion 4 of a substantially disk-shaped conformation having a lower work surface 2 that under operating conditions is designed to enable material removal from the surface of an article of manufacture to be finished off.
- the work surface 2 will be provided with the suitable abrasive or sanding means 3 at least at the central portion 4 of body 1, which means will consist of appropriate granules of abrasive material applied to said work surface.
- tongues may be provided, that possibly may not be spaced apart the same distance from each other, provided they are able to ensure a substantially steady engagement of the sanding disk with the supporting wheel.
- the tongues 5 and central portion 4 of the abrasive body 1 are of one piece construction and in particular can be manufactured by injection moulding from an appropriate polyurethane material (obviously other materials and other manufacturing technologies can be also adopted).
- the abrasive body 1 can be made of several parts separated from each other, e.g. the tongues 5 separated from the central portion 4 to which they are then linked by means of bonding agents or by other systems.
- the abrasive body 1 will be made (at least partly or preferably fully) of an elastically deformable material.
- deformations can take place in the extension plane of the central portion 4 of the abrasive body without involving breaks and tears on the disk.
- tongues 5 or part of the central portion 4 can be made of elastically deformable material, depending on the operating requirements.
- abrasive means 3 can be alternatively dispersed at the inside of the abrasive disk, only in the central portion 4 thereof, for example (being injected in the abrasive body during the manufacturing step) or alternatively, said abrasive means can be engaged by suitable resins or bonding agents exclusively at the work surface 2 of the abrasive body itself.
- the elastic disk When the abrasive means 3 is dispersed in the central portion 4 of disk 1, the elastic disk will have a longer duration than the sanding disks of known type; in fact, simultaneously with consumption of the abrasive means on the surface, also the elastic material in which the abrasive means is buried will be used up, which will cause the abrasive material buried in the region just below the work surface to go up to the surface. Therefore the disk will have to be replaced at a later time than the disks of standard type.
- sanding disks can be produced that are substantially impervious to passage of the abraded powder and in which the granules of abrasive material are directly engaged or not on the surface of the elastic material.
- a plurality of passage holes 14 can be provided on the sanding disk which holes are adapted to enable suction of the scraped off material by a machine 20 of known type (see Fig. 4); said holes 14 must therefore necessarily be in register with the respective holes present in the supporting wheel.
- the sanding disk can be made of a material of a spongy nature with open cells or of an elastic net (i.e. susceptible of deformation in its extension plane following pulling actions) allowing passage of the abraded powder due to the presence of the cavities of the material the sizes of which can be increased following deformations of the disk, which will improve the efficiency in sucking the abraded powder.
- a suitable thickness of the sanding disk 1 can be established a priori and said disk can reach a thickness of 80 mm for example, depending on requirements.
- the support 6 will have respective pins 12 emerging from its upper surface 7 adapted, under engagement conditions, to pass through said cuts 9.
- one of the adjacent edges 11 is in the form of a convex tab and, under operating conditions, it exerts pressure against the respective pin 12 thereby improving the engaging steadiness between the two parts (see Fig. 6).
- the elastic character of the abrasive body can be utilised to promote engagement of same with the supporting wheel.
- the tongues 5 and/or central portion 4 of the abrasive body 1 can be elastically deformed to enable quick engagement of pins 12 in the respective cuts 9 while at the same time maintaining the sanding disk tensioned on the supporting wheel.
- the particular configuration taken during the engagement step makes it impossible to disengage the sanding disk 1 from the supporting wheel 6 even as a result of possible deformations of the peripheral portion 21 of the supporting wheel 6 (which deformable portion enables the shape of the article of manufacture under working to be better followed and therefore improved finishing features and tensioning of the disk to be ensured), so that the operating reliability of the whole device is increased.
- the abrasive body being the object of the invention is adapted to be mounted both on completely rigid supporting wheels and on supporting wheels having a deformable peripheral portion, due to exploitation of the intrinsic elasticity/deformability features of the sanding disk itself.
- the abrasive body of the invention at the upper surface of the central disk-shaped portion 4 has no means for engagement with the supporting wheels such as adhesive means, bonding agents or tape fasteners of the "Velcro" type.
- the abrasive body in accordance with the invention will be connected with the supporting wheel 6 exclusively by means of tongues 5, while the central portion 4 will be movable and will not be linked to the lower surface of the supporting wheel 6 itself.
- the inner deformations of the abrasive body with respect to the surface to be worked allow the workpiece to be better finished through creation of movements adapted to reduce and even eliminate clogging of the sanding disk.
- the supporting wheel 6 will be provided with corresponding hooking portions 22 to receive the tongues 5, as shown in said figure.
- the invention achieves important advantages.
- the solution involving dispersion of the abrasive material within the spongy body increases duration of the disk as compared with the sanding disks present on the market.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
- The present invention relates to an abrasive body set to be used in machines designed to carry out working operations by abrasion; in particular the abrasive or sanding disks in accordance with the invention are intended for surface finishing of manufactured articles or for preparing predetermined treatments of same.
- It is known that there are on the market machines adapted to carry out working operations by abrasion on surfaces to be finished off such as, by way of example, car bodies, wood furniture, floors or thresholds made of stone or wood; these machines enable the surfaces of articles of manufacture to be prepared for further finishing treatments such as painting, or a well-finished appearance to be given to said surfaces.
- The apparatus of known type generally have a load bearing machine body to first of all bear a corresponding supporting wheel and to set the latter in rotation around an axis thereof.
- The supporting wheel is in turn such envisaged as to be able to receive a suitable sanding disk in engagement, said disk having a work surface that, under operating conditions, is designed to face the article of manufacture to be worked.
- This work surface carries the necessary abrasive material to enable working by material removal.
- It is also to be pointed out that the above machines can also enable suction of the powders generated by the action of the abrasive body on the surface being worked and conveying of said powders to appropriate collection regions to allow a healthier and cleaner work environment.
- After the above remarks it is to be pointed out that there are on the market many different typologies of sanding disks.
- Particularly known and widespread are sanding disks consisting of a support of paper material carrying the abrasive material, said disks being connected with the respective supporting wheel by an adhesive or a coupling involving use of a tape fastener of the so-called "Velcro" type.
- Obviously, in all applications where a suction action is required, the sanding disk too must have holes of the same features as those of the supporting wheel and in register with the latter to allow passage of the abrasive powders.
- Taking into account the fact that these disks get worn in short periods of time due to the stresses to which they are submitted, it is apparent that change of same is a difficult and heavy operation since great care must be paid to make the holes correspond.
- In order to solve the serious drawback connected with use of disks of the described type, another type of disk had a wide spreading on the market, said type being provided with suitable tongues each having a through hole of a diameter corresponding to the section of respective pins emerging on top of the supporting wheel.
- In particular, the sanding disks in accordance with this type of solution are made of paper or cloth material and are brought into engagement with the respective supporting wheel by turning the tongues down and engaging them through the holes to the corresponding pins integral with the supporting wheel.
- Use of a supporting wheel having a perimeter portion made of deformable material enables engagement between the sanding disk and the supporting wheel; the presence of tongues and the respective pins allows the suction holes of the sanding disk and those of the supporting wheel to be in register.
- However while the last-mentioned solution enables a rather quick engagement of the sanding disks with the supporting wheel and also engagement of the two elements to the correct relative position, it suffers from some important drawbacks and operating limits as well.
- First of all, if engagement of the sanding disk does not allow a perfect adhesion of same to the supporting wheel without any sliding and in a condition of partial tensioning, tearing of the sanding disk may occur during operation of the machine.
- It is in fact to be pointed out that such a sanding disk is set in rotation at high angular speeds and consequently a loose engagement between the disk and supporting wheel necessarily involves breaking in use of the disk itself with clear and obvious drawbacks for the user.
- Secondly, it is also to be noted that during working by abrasion the supporting wheel with the associated disk is pressed against the surface to be abraded or scraped off and the peripheral portion of the supporting wheel itself, giving rise to deformation and involving a slackening of the grip between the tongues of the abrasive disk and the pins of the supporting wheel thereby causing an undesirable separation of the sanding disk from the support, this fact obviously being a further drawback.
- Under this situation the technical task underlying the present invention is to substantially solve all the drawbacks of the known art.
- It is a first aim of the invention to make available a sanding disk that is of easy mounting to the respective supporting wheel and is able to be maintained in engagement also following deformation of the peripherally region of the supporting wheel during use of same thereby avoiding separation of the sanding disk.
- Therefore the present invention aims at making available a sanding disk ensuring an optimal grip on the supporting wheel also during the operations for material removal.
- It is another aim of the invention to make available an abrasive body having a longer duration and a greater efficiency in working, also enabling an improved surface finishing to be obtained on the articles of manufacture.
- It is a further aim of the invention to eliminate or at least limit the clogging problems present in the sanding disks of known type.
- The foregoing and further aims that will become more apparent in the course of the present description are substantially achieved by an abrasive body in accordance with the features set out in the appended claims.
- Further features and advantages will be best understood from the detailed description of a preferred but not exclusive embodiment of an abrasive body in accordance with the invention.
- This description will be carried out hereinafter with reference to the accompanying drawings, given by way of non-limiting example, in which:
- Fig. 1 shows a supporting wheel adapted to be used in machines for surface working of manufactured articles in a perspective top view;
- Fig. 2 shows an abrasive body with tongues provided with a slit in accordance with the present invention;
- Fig. 3 shows the abrasive disk applied to the supporting wheel in a perspective view;
- Fig. 4 is a side view partly in section showing use of a sanding disk in accordance with the invention on a machine for surface working of articles of manufacture;
- Fig. 5 shows a possible alternative embodiment of the sanding disk in accordance with the present invention; and
- Fig. 6 shows the region of engagement of a tongue of the abrasive body with the respective pin of the supporting wheel, to an enlarged scale.
- With reference to the drawings an abrasive body in accordance with the present invention has been generally identified by
reference numeral 1. - As can be viewed from the accompanying figures, the abrasive body therein shown consists of a
central portion 4 of a substantially disk-shaped conformation having alower work surface 2 that under operating conditions is designed to enable material removal from the surface of an article of manufacture to be finished off. - Obviously, the
work surface 2 will be provided with the suitable abrasive or sanding means 3 at least at thecentral portion 4 ofbody 1, which means will consist of appropriate granules of abrasive material applied to said work surface. - Also provided is the presence of a predetermined number of
tongues 5 emerging from thecentral portion 4 and designed to enable engagement of the abrasive body itself with asupport 6, as better clarified in the following. - There is in particular the presence of four of said tongues angularly spaced apart the same distance with respect to a central symmetry axis S of the abrasive body.
- Obviously a different number of tongues may be provided, that possibly may not be spaced apart the same distance from each other, provided they are able to ensure a substantially steady engagement of the sanding disk with the supporting wheel.
- As can be viewed from the accompanied figures, the
tongues 5 andcentral portion 4 of theabrasive body 1 are of one piece construction and in particular can be manufactured by injection moulding from an appropriate polyurethane material (obviously other materials and other manufacturing technologies can be also adopted). - Clearly, the
abrasive body 1 can be made of several parts separated from each other, e.g. thetongues 5 separated from thecentral portion 4 to which they are then linked by means of bonding agents or by other systems. - In this connection it is to be pointed out that the
abrasive body 1 will be made (at least partly or preferably fully) of an elastically deformable material. - In particular, deformations can take place in the extension plane of the
central portion 4 of the abrasive body without involving breaks and tears on the disk. - In embodiments different from the one shown only some of the
tongues 5 or part of thecentral portion 4 can be made of elastically deformable material, depending on the operating requirements. - In addition, the above mentioned abrasive means 3 can be alternatively dispersed at the inside of the abrasive disk, only in the
central portion 4 thereof, for example (being injected in the abrasive body during the manufacturing step) or alternatively, said abrasive means can be engaged by suitable resins or bonding agents exclusively at thework surface 2 of the abrasive body itself. - When the abrasive means 3 is dispersed in the
central portion 4 ofdisk 1, the elastic disk will have a longer duration than the sanding disks of known type; in fact, simultaneously with consumption of the abrasive means on the surface, also the elastic material in which the abrasive means is buried will be used up, which will cause the abrasive material buried in the region just below the work surface to go up to the surface. Therefore the disk will have to be replaced at a later time than the disks of standard type. - In addition it is also apparent that, depending on the materials used, sanding disks can be produced that are substantially impervious to passage of the abraded powder and in which the granules of abrasive material are directly engaged or not on the surface of the elastic material.
- In this manner, on the one hand a greater amount of abrasive material on the operating surface of the disk is ensured with respect to solutions in which the disk is made in the form of an elastic net or fabric, exactly due to the greater operating surface provided and, on the other hand, a sanding disk is produced that is impervious to passage of the abraded powder.
- Under this first situation a plurality of passage holes 14 can be provided on the sanding disk which holes are adapted to enable suction of the scraped off material by a
machine 20 of known type (see Fig. 4); saidholes 14 must therefore necessarily be in register with the respective holes present in the supporting wheel. - It will be recognised in this connection that due to the presence of the
engagement tongues 5 and therespective pins 12 to be fitted in the tongue holes and emerging from the supporting wheel, the correct relative positioning of the two parts and therefore the correspondence of the holes is ensured. - As an alternative to the above solution, it is possible to provide use of an elastic material capable of allowing passage of the abraded material at least in a situation of elastic deformation of the abrasive body.
- For example, the sanding disk can be made of a material of a spongy nature with open cells or of an elastic net (i.e. susceptible of deformation in its extension plane following pulling actions) allowing passage of the abraded powder due to the presence of the cavities of the material the sizes of which can be increased following deformations of the disk, which will improve the efficiency in sucking the abraded powder.
- Obviously, a suitable thickness of the
sanding disk 1 can be established a priori and said disk can reach a thickness of 80 mm for example, depending on requirements. - The type of engagement of the
abrasive body 1 with the supporting wheel orsupport 6 will be now examined. In this connection it is to be noted that at least one of thetongues 5 and preferably all of them have a throughcut 9 defined byadjacent edges - Correspondingly the
support 6 will haverespective pins 12 emerging from itsupper surface 7 adapted, under engagement conditions, to pass through saidcuts 9. - As can be viewed from the accompanying figures, one of the
adjacent edges 11 is in the form of a convex tab and, under operating conditions, it exerts pressure against therespective pin 12 thereby improving the engaging steadiness between the two parts (see Fig. 6). - During the mounting step the elastic character of the abrasive body can be utilised to promote engagement of same with the supporting wheel.
- In particular, the
tongues 5 and/orcentral portion 4 of theabrasive body 1 can be elastically deformed to enable quick engagement ofpins 12 in therespective cuts 9 while at the same time maintaining the sanding disk tensioned on the supporting wheel. - If a deformable supporting wheel is used, the particular configuration taken during the engagement step makes it impossible to disengage the
sanding disk 1 from the supportingwheel 6 even as a result of possible deformations of theperipheral portion 21 of the supporting wheel 6 (which deformable portion enables the shape of the article of manufacture under working to be better followed and therefore improved finishing features and tensioning of the disk to be ensured), so that the operating reliability of the whole device is increased. - It will be appreciated in this connection that the abrasive body being the object of the invention is adapted to be mounted both on completely rigid supporting wheels and on supporting wheels having a deformable peripheral portion, due to exploitation of the intrinsic elasticity/deformability features of the sanding disk itself.
- In addition, the abrasive body of the invention at the upper surface of the central disk-shaped
portion 4 has no means for engagement with the supporting wheels such as adhesive means, bonding agents or tape fasteners of the "Velcro" type. - In other words, the abrasive body in accordance with the invention will be connected with the supporting
wheel 6 exclusively by means oftongues 5, while thecentral portion 4 will be movable and will not be linked to the lower surface of the supportingwheel 6 itself. - In this manner and by use of an elastically deformable material, the inner deformations of the abrasive body with respect to the surface to be worked allow the workpiece to be better finished through creation of movements adapted to reduce and even eliminate clogging of the sanding disk.
- In an alternative embodiment provision can be made for engagement of
tongues 5 to the upper portion of thesupport 6 by use of a hooking system of the "Velcro" type, as shown in Fig. 5. In this case the supportingwheel 6 will be provided with corresponding hookingportions 22 to receive thetongues 5, as shown in said figure. - The invention achieves important advantages.
- First of all use of an elastic material to make the abrasive body allows engagement between the disk and the supporting wheel to be greatly simplified. In addition, the solution herein adopted allows engagement of the abrasive body with completely rigid supporting wheels that are devoid of deformable portions.
- The presence of through cuts instead of through holes in the
tongues 5 enables a safe grip during the working operations also in the presence of important deformations of theperipheral portion 21 of the supporting wheel. - In addition, due to the absence of fasteners of the Velcro type or bonding agents between the
upper surface 7 of thesanding disk 1 and the supportingwheel 6 the elastic character of the sanding disk is always maintained, which enables generation of inner deformations of the disk itself with respect to the surface under working. As a result of the above a better finishing off is achieved and clogging of the sanding disk is reduced or even eliminated. - In addition, the solution involving dispersion of the abrasive material within the spongy body increases duration of the disk as compared with the sanding disks present on the market.
Claims (13)
- An abrasive body comprising:a work surface (2) that is designed, under working conditions, to face a surface to be worked;abrasive means (3) associated at least with one central portion (4) of the abrasive body (1) to enable said working by abrasion; anda predetermined number of tongues (5) emerging from the central portion (4) of the abrasive body (1) to enable engagement of the abrasive body itself with a support (6), characterised in that said abrasive body (1) is at least partly made of an elastically deformable material.
- An abrasive body as claimed in claim 1,
characterised in that under engagement conditions of the tongues (5) with the support (6) an upper surface (7) of the abrasive body (1) is not directly fastened to the lower surface (8) of the support (6), by adhesive means or fasteners of the "Velcro" type, for example. - An abrasive body as claimed in anyone of the preceding claims, characterised in that at least one of the tongues (5) and preferably all of them have a cut (9) defined by edges adjacent to each other (10, 11) said cut (9) being set to enable engagement of the tongue (5) with a respective pin (12) emerging from the upper surface (13) of the support (6).
- An abrasive body as claimed in anyone of the preceding claims, characterised in that the central portion (4) of the abrasive body (1) and the tongues (5) are of one piece construction and are made of an elastically extendible material.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that the central portion (4) and tongues (5) are made separately and fastened to each other by suitable connecting means.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that the abrasive means (3) is directly in engagement at least with the central portion (4) of the abrasive body (1) at the work surface (2) in particular without interposition of any surface of non elastic material such as paper material, cloth material or still others.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that the abrasive means (3) is dispersed within at least the central portion (4) of the abrasive body (1).
- An abrasive body as claimed in anyone of the preceding claims, characterised in that it is made of an elastically extendible material and is impervious to the passage of the abraded powder.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that it is made of an elastically extendible material, said abrasive body (1) enabling passage of the abraded powder through its central portion (4) at least when it is elastically deformed.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that the central portion (4) is flat and is fully formed of an elastic material enabling at least deformation of same in the extension plane thereof.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that the central portion (4) has a plurality of through holes (14) to enable possible suction of the abraded particles.
- An abrasive body as claimed in anyone of the preceding claims, characterised in that at least the tongues (5) are made of an elastically deformable material to enable engagement with the support (6).
- An abrasive body as claimed in claim 3,
characterised in that under engagement conditions of the tongues (5) with the pins (12) of the support, one of the adjacent edges (11) is in the form of a tab pressing against the pin itself.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04425440A EP1607181B1 (en) | 2004-06-15 | 2004-06-15 | Abrasive body |
DE602004026700T DE602004026700D1 (en) | 2004-06-15 | 2004-06-15 | abrasives |
AT04425440T ATE464980T1 (en) | 2004-06-15 | 2004-06-15 | ABRASIVE BODY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04425440A EP1607181B1 (en) | 2004-06-15 | 2004-06-15 | Abrasive body |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1607181A1 true EP1607181A1 (en) | 2005-12-21 |
EP1607181B1 EP1607181B1 (en) | 2010-04-21 |
Family
ID=34932564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04425440A Expired - Lifetime EP1607181B1 (en) | 2004-06-15 | 2004-06-15 | Abrasive body |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1607181B1 (en) |
AT (1) | ATE464980T1 (en) |
DE (1) | DE602004026700D1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7458883B2 (en) | 2006-01-31 | 2008-12-02 | B A Werk Industries Ltd. | Apparatus for abrading a surface |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62292367A (en) * | 1986-06-11 | 1987-12-19 | Kouyoushiya:Kk | Elastic grain abrasive sheet covered with diamond |
WO1995021729A1 (en) * | 1994-02-15 | 1995-08-17 | Catalfer Snc Di Catalfamo Giuseppe | System for clamping replaceable abrasive discs to the sides of plates on rotating dressers |
US5637386A (en) * | 1995-01-10 | 1997-06-10 | Norton Company | Fining abrasive materials |
-
2004
- 2004-06-15 AT AT04425440T patent/ATE464980T1/en not_active IP Right Cessation
- 2004-06-15 DE DE602004026700T patent/DE602004026700D1/en not_active Expired - Lifetime
- 2004-06-15 EP EP04425440A patent/EP1607181B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62292367A (en) * | 1986-06-11 | 1987-12-19 | Kouyoushiya:Kk | Elastic grain abrasive sheet covered with diamond |
WO1995021729A1 (en) * | 1994-02-15 | 1995-08-17 | Catalfer Snc Di Catalfamo Giuseppe | System for clamping replaceable abrasive discs to the sides of plates on rotating dressers |
US5637386A (en) * | 1995-01-10 | 1997-06-10 | Norton Company | Fining abrasive materials |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0121, no. 82 (M - 702) 27 May 1988 (1988-05-27) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7458883B2 (en) | 2006-01-31 | 2008-12-02 | B A Werk Industries Ltd. | Apparatus for abrading a surface |
Also Published As
Publication number | Publication date |
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ATE464980T1 (en) | 2010-05-15 |
EP1607181B1 (en) | 2010-04-21 |
DE602004026700D1 (en) | 2010-06-02 |
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