EP1442842A1 - Abrasive disc for grinding machine - Google Patents
Abrasive disc for grinding machine Download PDFInfo
- Publication number
- EP1442842A1 EP1442842A1 EP03356204A EP03356204A EP1442842A1 EP 1442842 A1 EP1442842 A1 EP 1442842A1 EP 03356204 A EP03356204 A EP 03356204A EP 03356204 A EP03356204 A EP 03356204A EP 1442842 A1 EP1442842 A1 EP 1442842A1
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- EP
- European Patent Office
- Prior art keywords
- disc
- zone
- radius
- millimeters
- established
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
Definitions
- abrasive discs to work on materials metallic, non-metallic, concrete, reinforced concrete, tiles, tiles, is very common.
- the discs can receive carbide inserts or diamond segments increasing their hardness, said inserts being arranged both on the periphery of discs and laterally, in regular or irregular positions.
- the discs are in practice made in the form of flat crowns. They come to adapt on grinding machines to be driven from the most appropriately by motor axis in known manner. Very often a protective cover is placed around the grinding wheel, leaving free the cutting and abrasion area.
- FIGS. 1 and 2 thus represent the prior art.
- the abrasion disc is flat (1) and is shown by way of example of carbide abrasion pads (2), the protective casing being represented by (3).
- the abrasion effect only takes place partially on the pad (s) considered, and there is therefore wear partial.
- the clearance zone (d) of the disc relative to the casing is very limited and does not allow full use of the disc.
- the disc (4) present from a central base (4a) necessary for its fixing on the machine, a radial extension defining a folded area with a rising intermediate part (4b) and an oriented end part (4c) differently and arranged angularly compared to the previous one. It is this last part which receives the carbide insert (s) (2) or segments diamonds of all types, is of a length substantially equal to that of the length of the previous area. The last part (4c) receives the pads carbide of all types.
- a protective casing (3) protects the disc from the exception of course for the work area.
- the abrasive disc for machines grinding of the type having a flat central support part with opening fixing to the machine, and having carbide inserts or diamond segments on its curvilinear peripheral zone or laterally on the peripheral border is remarkable in that the shape of the disc beyond said central part is in a curvilinear configuration, continuous, smooth, with a first zone adjacent to the established central part along a first radius and extending through a second established area along a second radius, said second zone constituting the border portion end of the disc receiving the carbide insert (s) or segments diamonds, and in that the spokes have dimensional relationships different, and in that the configuration of said zones makes it possible to define a guide path by a broad, progressive, continuous movement, at the like a claw, to allow rational, complete and regular of all the abrasion pads, or diamond segments, and in that the outside radius (R1) of the area (Z1) is established from a virtual axis (A1) located beyond and behind the horizontal plane of the flat part (10a), and in that the zone (Z
- the abrasive disc according to the invention is referenced as a whole by (10). It has a central and middle flat part (10a) with a cutout (10b) for support and fixing on a grinding machine (11).
- the disc comprises beyond said central part a curvilinear shape (10c), continuous, smooth, with a first zone (Z1) adjacent to the central part, then a second zone (Z2) constituting the end edge of the disc receiving the carbide insert (s) (2), of all shapes and sizes, arranged regularly or not on the curved face (10d) and apparent bulging of the disc.
- the plates are thus arranged on said second zone (Z2), but also as a variant or in addition, they are arranged on the edge (10th) of the disc.
- the zones (Z1-Z2) which define the curvilinear configuration of the disc have different radii (R1-R2), to give and create a claw effect to said form.
- the outside radius (R1) of the area (Z1) can be around 18 to 20 millimeters from a virtual axis (A1) located substantially beyond and behind the horizontal plane of the flat part (10a).
- This radius can preferably be of the order of 19 millimeters for a outer diameter of the disc in the order of 115 millimeters.
- the zone (Z2) has a radius (R2) of the order of 48 to 52 millimeters, of preferably 50 millimeters, for the disc diameter of around 115 millimeters.
- the axis (A2) is located at this distance in the extension of the axis (A1) and relative to the tangent horizontal from the highest point of the area (Z2) relative to the area (Z1).
- the configuration obtained optimizes the conditions of use of the abrasive disc.
- the use of the grinding machine equipped with a abrasion disc according to the invention can be carried out with a movement natural like a claw to allow much more use rational use of the tool with more regular wear.
- the carbide inserts or diamond segments are profiled curvilinear, if they are arranged radially on the zone (Z2), so that there is no longer an angle of attack or the risk of rapid deterioration said platelets.
- the abrasive discs according to the invention are obtained by stamping, so that their manufacturing cost is reduced and in any event much more economical than the discs produced according to the prior art.
- the abrasion disc according to the invention also makes it possible to be subjected to a surface treatment if necessary.
- the disc according to the invention in its particular configuration allows more precise, larger work with guidance manual more natural compared to the receiving structure. They also allow to cut more irregular, curvilinear, wavy and practical, allow interventions on building site more many and more varied.
Abstract
Description
L'utilisation de disques abrasifs pour travailler sur des matériaux métalliques, non métalliques, bétons, bétons armés, tuiles, carrelages, est bien courante. Les disques peuvent recevoir des plaquettes carbure ou des segments diamantés augmentant leur dureté, lesdites plaquettes étant disposées aussi bien en périphérie de disques que latéralement, dans des positions régulières ou irrégulières.The use of abrasive discs to work on materials metallic, non-metallic, concrete, reinforced concrete, tiles, tiles, is very common. The discs can receive carbide inserts or diamond segments increasing their hardness, said inserts being arranged both on the periphery of discs and laterally, in regular or irregular positions.
Les disques sont en pratique réalisés sous forme de couronnes plates. Ils viennent s'adapter sur des machines à meuler pour être entraínés de la manière la plus appropriée par axe moteur de manière connue. Très souvent, un capot de protection est disposé autour de la meule, en laissant libre la zone de coupe et d'abrasion.The discs are in practice made in the form of flat crowns. They come to adapt on grinding machines to be driven from the most appropriately by motor axis in known manner. Very often a protective cover is placed around the grinding wheel, leaving free the cutting and abrasion area.
On a ainsi représenté aux figures 1 et 2 l'art antérieur. Selon la figure 1, le disque d'abrasion est plat (1) et on a représenté à titre d'exemple des plaquettes carbure (2) d'abrasion, le carter de protection étant représenté par (3). En pratique, on constate que l'effet d'abrasion ne s'effectue que partiellement sur la ou les plaquettes considérées, et il y a donc une usure partielle. Par ailleurs, la zone de dégagement (d) du disque par rapport au carter est très limitée et ne permet pas une utilisation complète du disque.FIGS. 1 and 2 thus represent the prior art. According to Figure 1, the abrasion disc is flat (1) and is shown by way of example of carbide abrasion pads (2), the protective casing being represented by (3). In practice, it can be seen that the abrasion effect only takes place partially on the pad (s) considered, and there is therefore wear partial. Furthermore, the clearance zone (d) of the disc relative to the casing is very limited and does not allow full use of the disc.
En outre, les conditions d'utilisation de ces disques abrasifs sont limitatives au niveau des applications, et on ne peut pas par exemple traiter des formes complexes ou des formes en angle.In addition, the conditions of use of these abrasive discs are limiting at the application level, and we cannot for example treat forms complex or angled shapes.
Il existe semble-t-il sur le marché une configuration du disque abrasif présentant une structure en plis comme représenté figure 2. Dans ce cas, le disque (4) présente à partir d'une base centrale (4a) nécessaire à sa fixation sur la machine, un prolongement radial définissant une zone pliée avec une partie intermédiaire (4b) montante et une partie d'extrémité (4c) orientée différemment et disposée angulairement par rapport à la précédente. C'est cette dernière partie qui reçoit la ou les plaquettes carbures (2) ou segments diamantés de tous types, est d'une longueur sensiblement égale à celle de la longueur de la zone précédente. La dernière partie (4c) reçoit les plaquettes carbure de tous types. Un carter de protection (3) protège le disque à l'exception bien sûr de la zone de travail.There seems to be a configuration of the abrasive disc on the market with a pleated structure as shown in Figure 2. In this case, the disc (4) present from a central base (4a) necessary for its fixing on the machine, a radial extension defining a folded area with a rising intermediate part (4b) and an oriented end part (4c) differently and arranged angularly compared to the previous one. It is this last part which receives the carbide insert (s) (2) or segments diamonds of all types, is of a length substantially equal to that of the length of the previous area. The last part (4c) receives the pads carbide of all types. A protective casing (3) protects the disc from the exception of course for the work area.
Dans cette configuration de pliage, l'usure des plaquettes carbure ou segments diamantés ne s'effectue que partiellement. Dans cette mise en oeuvre, la configuration du disque limite les conditions d'utilisation. La fabrication de ce type de disques reste délicate et coûteuse.In this folding configuration, the wear of the carbide inserts or diamond segments are only partially made. In this setting the configuration of the disk limits the conditions of use. The manufacturing this type of discs remains delicate and costly.
On connaít aussi des dispositifs abrasifs décrits dans les brevets US 6280309 et JP 2000 144 244, qui ne permettent pas une optimisation du mouvement de l'outil.Also known abrasive devices described in US patents 6280309 and JP 2000 144 244, which do not allow optimization of the tool movement.
La démarche du Demandeur a donc été de s'intéresser à cet art antérieur et de rechercher une nouvelle conception de disques abrasifs permettant un meilleur contrôle et régularité d'usure des plaquettes carbure ou segments diamantés, mais aussi de rechercher une extension d'applications, par une optimisation de la forme et améliorer les conditions d'utilisation.The Applicant's approach was therefore to take an interest in this prior art and to research a new design of abrasive discs allowing a better control and regularity of wear of carbide inserts or segments diamonds, but also to seek an extension of applications, by a optimizing the shape and improving the conditions of use.
Un autre but recherché était de réduire le coût de fabrication des disques.Another goal sought was to reduce the cost of manufacturing discs.
Ces buts et d'autres encore ressortiront bien de la suite de la description. These goals and others will become apparent from the following description.
Selon une première caractéristique, le disque abrasif pour machines à meuler du type présentant une partie centrale plate d'appui avec ouverture de fixation sur la machine, et présentant des plaquettes carbure ou segments diamantés sur sa zone périphérique curvilignes ou latéralement sur la bordure périphérique est remarquable en ce que la forme du disque au delà de ladite partie centrale est dans une configuration curviligne , continue, lisse, avec une première zone adjacente à la partie centrale établie selon un premier rayon et se prolongeant par une seconde zone établie selon un second rayon, ladite seconde zone constituant la partie de bordure d'extrémité du disque recevant la ou les plaquettes carbure ou segments diamantés , et en ce que les rayons ont des rapports dimensionnels différents , et en ce que la configuration desdites zones permet de définir un chemin de guidage par un mouvement ample, progressif, continu, à la manière d'une griffe, pour autoriser une utilisation rationnelle, complète et régulière de l'ensemble des plaquettes d'abrasion, ou segments diamantés, et en ce que le rayon extérieur (R1) de la zone (Z1) est établi à partir d'un axe (A1) virtuel se situant au-delà et en arrière du plan horizontal de la partie plate (10a), et en ce que la zone (Z2) présente un rayon (R2) qui est établi à partir d'un axe (A2) virtuel, se situant dans le prolongement de l'axe (A1) et par rapport à la tangente horizontale au point le plus haut de la zone (Z2) relative à la zone (Z1).According to a first characteristic, the abrasive disc for machines grinding of the type having a flat central support part with opening fixing to the machine, and having carbide inserts or diamond segments on its curvilinear peripheral zone or laterally on the peripheral border is remarkable in that the shape of the disc beyond said central part is in a curvilinear configuration, continuous, smooth, with a first zone adjacent to the established central part along a first radius and extending through a second established area along a second radius, said second zone constituting the border portion end of the disc receiving the carbide insert (s) or segments diamonds, and in that the spokes have dimensional relationships different, and in that the configuration of said zones makes it possible to define a guide path by a broad, progressive, continuous movement, at the like a claw, to allow rational, complete and regular of all the abrasion pads, or diamond segments, and in that the outside radius (R1) of the area (Z1) is established from a virtual axis (A1) located beyond and behind the horizontal plane of the flat part (10a), and in that the zone (Z2) has a radius (R2) which is established from a virtual axis (A2), located in the extension of the axis (A1) and with respect to the horizontal tangent at the highest point of the zone (Z2) relative to zone (Z1).
Ces caractéristiques et d'autres encore ressortiront bien de la suite de la description.These characteristics and others will become clear from the rest of the description.
Pour fixer l'objet de l'invention illustré d'une manière non limitative aux figures des dessins où :
- Les figures 1 et 2 sont des vues de côté et à caractère schématique des disques d'abrasion selon l'art antérieur.
- La figure 3 est une vue de profil et en coupe d'un disque d'abrasion selon l'invention.
- La figure 4 est une vue en plan du disque selon la figure 3.
- La figure 5 est une vue en perspective du disque d'abrasion selon l'invention, les plaquettes carbure ou segments diamantés n'étant pas représentées.
- La figure 6 est une vue du disque selon l'invention monté sur une machine à meuler.
- Figures 1 and 2 are schematic side views of the abrasion discs according to the prior art.
- Figure 3 is a side view in section of an abrasion disc according to the invention.
- FIG. 4 is a plan view of the disc according to FIG. 3.
- Figure 5 is a perspective view of the abrasion disc according to the invention, the carbide inserts or diamond segments not being shown.
- Figure 6 is a view of the disc according to the invention mounted on a grinding machine.
Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant
d'une manière non limitative illustrée aux figures des dessins.
Le disque abrasif selon l'invention est référencé dans son ensemble par
(10). Il présente une partie plate (10a) centrale et médiane avec une découpe
(10b) pour l'appui et la fixation sur une machine à meuler (11).In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.
The abrasive disc according to the invention is referenced as a whole by (10). It has a central and middle flat part (10a) with a cutout (10b) for support and fixing on a grinding machine (11).
Selon l'invention et en vue d'une optimisation de performances, le disque comprend au delà de ladite partie centrale une forme curviligne (10c), continue, lisse, avec une première zone (Z1) adjacente à la partie centrale, puis une seconde zone (Z2) constituant la bordure d'extrémité du disque recevant la ou les plaquettes carbure (2), de toutes formes et dimensions, disposées de manière régulière ou non sur la face (10d) curviligne et bombée apparente du disque. Les plaquettes sont ainsi disposées sur ladite secondes zone (Z2), mais aussi en variante ou à titre complémentaire, elles sont disposées sur le chant (10e) du disque.According to the invention and with a view to optimizing performance, the disc comprises beyond said central part a curvilinear shape (10c), continuous, smooth, with a first zone (Z1) adjacent to the central part, then a second zone (Z2) constituting the end edge of the disc receiving the carbide insert (s) (2), of all shapes and sizes, arranged regularly or not on the curved face (10d) and apparent bulging of the disc. The plates are thus arranged on said second zone (Z2), but also as a variant or in addition, they are arranged on the edge (10th) of the disc.
Dans le cadre de l'optimisation de réalisation du disque selon l'invention, les zones (Z1-Z2) qui définissent la configuration curviligne du disque ont des rayons (R1-R2) différents, afin de donner et de créer un effet de griffes à ladite forme. In the context of optimizing the production of the disc according to the invention, the zones (Z1-Z2) which define the curvilinear configuration of the disc have different radii (R1-R2), to give and create a claw effect to said form.
Plus particulièrement, le rayon extérieur (R1) de la zone (Z1) peut être de l'ordre de 18 à 20 millimètres à partir d'un axe (A1) virtuel se situant sensiblement au delà et en arrière du plan horizontal de la partie plate (10a). Ce rayon peut être de préférence de l'ordre de 19 millimètres pour un diamètre extérieur du disque de l'ordre de 115 millimètres.More particularly, the outside radius (R1) of the area (Z1) can be around 18 to 20 millimeters from a virtual axis (A1) located substantially beyond and behind the horizontal plane of the flat part (10a). This radius can preferably be of the order of 19 millimeters for a outer diameter of the disc in the order of 115 millimeters.
La zone (Z2) présente un rayon (R2) de l'ordre de 48 à 52 millimètres, de préférence 50 millimètres, pour le diamètre du disque de l'ordre de 115 millimètres. En relation avec le rayon (R2), l'axe (A2) se situe à cette distance dans le prolongement de l'axe (A1) et par rapport à la tangente horizontale du point le plus haut de la zone (Z2) relative à la zone (Z1).The zone (Z2) has a radius (R2) of the order of 48 to 52 millimeters, of preferably 50 millimeters, for the disc diameter of around 115 millimeters. In relation to the radius (R2), the axis (A2) is located at this distance in the extension of the axis (A1) and relative to the tangent horizontal from the highest point of the area (Z2) relative to the area (Z1).
Ainsi la configuration obtenue optimise les conditions d'utilisation du disque abrasif. En effet, l'utilisation de la machine à meuler équipée d'un disque d'abrasion selon l'invention peut s'effectuer avec un mouvement naturel à la manière d'une griffe pour permettre l'utilisation beaucoup plus rationnelle de l'outil avec une usure plus régulière.Thus the configuration obtained optimizes the conditions of use of the abrasive disc. Indeed, the use of the grinding machine equipped with a abrasion disc according to the invention can be carried out with a movement natural like a claw to allow much more use rational use of the tool with more regular wear.
Par ailleurs, les plaquettes carbure ou segments diamantés sont profilées curvilignes, si elles sont disposées radialement sur la zone (Z2), de sorte qu'il n'y a plus d'angle d'attaque, ni de risque de détérioration rapide desdites plaquettes.In addition, the carbide inserts or diamond segments are profiled curvilinear, if they are arranged radially on the zone (Z2), so that there is no longer an angle of attack or the risk of rapid deterioration said platelets.
Les disques abrasifs selon l'invention sont obtenus par matriçage, de sorte que leur coût de fabrication est réduit et en toute hypothèse beaucoup plus économique que les disques fabriqués selon l'art antérieur. The abrasive discs according to the invention are obtained by stamping, so that their manufacturing cost is reduced and in any event much more economical than the discs produced according to the prior art.
Le disque d'abrasion selon l'invention permet également d'être soumis à un traitement de surface si nécessaire.The abrasion disc according to the invention also makes it possible to be subjected to a surface treatment if necessary.
En pratique, le disque selon l'invention dans sa configuration particulière permet d'effectuer des travaux plus précis, plus amples avec un guidage manuel plus naturel par rapport à la structure réceptrice. Ils permettent aussi de découper des formes plus irrégulières, curvilignes, en ondulation et en pratique, permettent des interventions sur chantier de bâtiments plus nombreuses et plus variées.In practice, the disc according to the invention in its particular configuration allows more precise, larger work with guidance manual more natural compared to the receiving structure. They also allow to cut more irregular, curvilinear, wavy and practical, allow interventions on building site more many and more varied.
Claims (4)
et en ce que la zone (Z2) présente un rayon (R2) qui est établi à partir d'un axe (A2) virtuel, se situant dans le prolongement de l'axe (A1) et par rapport à la tangente horizontale au point le plus haut de la zone (Z2) relative à la zone (Z1).Abrasive disc for grinding machines of the type having a flat central support part with opening for attachment to the machine, and having carbide inserts or diamond segments on its curvilinear peripheral zone or laterally on the peripheral edge, characterized in that the shape of the disc beyond said central part (10a) is in a curvilinear configuration (10c), continuous, smooth, with a first zone (Z1) adjacent to the central part established according to a first radius (R1) and extending by a second zone (Z2) established according to a second radius (R2), said second zone constituting the end edge portion of the disc receiving the carbide insert (s) or diamond segments, and in that the spokes have different dimensional ratios, and in that the configuration of said zones makes it possible to define a guide path by a broad, progressive, continuous movement, in the manner of a claw, to authorize a use rational, complete and regular ion of all the abrasion pads, or diamond segments, and in that the outside radius (R1) of the area (Z1) is established from a virtual axis (A1) located beyond and behind the horizontal plane of the flat part (10a),
and in that the zone (Z2) has a radius (R2) which is established from a virtual axis (A2), lying in the extension of the axis (A1) and relative to the horizontal tangent at the point the highest of the zone (Z2) relative to the zone (Z1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0216938A FR2849401B1 (en) | 2002-12-30 | 2002-12-30 | ABRASIVE DISC FOR MILLING MACHINES |
| FR0216938 | 2002-12-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1442842A1 true EP1442842A1 (en) | 2004-08-04 |
| EP1442842B1 EP1442842B1 (en) | 2008-03-05 |
Family
ID=32480345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20030356204 Expired - Fee Related EP1442842B1 (en) | 2002-12-30 | 2003-12-19 | Abrasive disc for grinding machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1442842B1 (en) |
| DE (1) | DE60319499T2 (en) |
| FR (1) | FR2849401B1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120568A (en) * | 1989-12-20 | 2000-09-19 | Neff; Charles E. | Article and a method for producing an article having a high friction surface |
| US6280309B1 (en) * | 1995-10-19 | 2001-08-28 | Norton Company | Accessories and attachments for angle grinder |
| JP2002144244A (en) * | 2000-11-13 | 2002-05-21 | Tenryu Saw Mfg Co Ltd | Hat type rotating grinding tool |
-
2002
- 2002-12-30 FR FR0216938A patent/FR2849401B1/en not_active Expired - Fee Related
-
2003
- 2003-12-19 EP EP20030356204 patent/EP1442842B1/en not_active Expired - Fee Related
- 2003-12-19 DE DE2003619499 patent/DE60319499T2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120568A (en) * | 1989-12-20 | 2000-09-19 | Neff; Charles E. | Article and a method for producing an article having a high friction surface |
| US6280309B1 (en) * | 1995-10-19 | 2001-08-28 | Norton Company | Accessories and attachments for angle grinder |
| JP2002144244A (en) * | 2000-11-13 | 2002-05-21 | Tenryu Saw Mfg Co Ltd | Hat type rotating grinding tool |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2002, no. 09 4 September 2002 (2002-09-04) * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2849401B1 (en) | 2006-03-31 |
| DE60319499T2 (en) | 2009-03-12 |
| DE60319499D1 (en) | 2008-04-17 |
| EP1442842B1 (en) | 2008-03-05 |
| FR2849401A1 (en) | 2004-07-02 |
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