EP1491291B1 - Ponçeuse à plateau excentrique - Google Patents

Ponçeuse à plateau excentrique Download PDF

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Publication number
EP1491291B1
EP1491291B1 EP20040008919 EP04008919A EP1491291B1 EP 1491291 B1 EP1491291 B1 EP 1491291B1 EP 20040008919 EP20040008919 EP 20040008919 EP 04008919 A EP04008919 A EP 04008919A EP 1491291 B1 EP1491291 B1 EP 1491291B1
Authority
EP
European Patent Office
Prior art keywords
locking
eccentric
latching
grinder according
disc grinder
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.)
Expired - Lifetime
Application number
EP20040008919
Other languages
German (de)
English (en)
Other versions
EP1491291A1 (fr
Inventor
Hans-Peter Albrecht
Johannes Dr. Steimel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Festool GmbH
Original Assignee
Festool GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Festool GmbH filed Critical Festool GmbH
Publication of EP1491291A1 publication Critical patent/EP1491291A1/fr
Application granted granted Critical
Publication of EP1491291B1 publication Critical patent/EP1491291B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B23/03—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement

Definitions

  • the invention relates to a Exzentertellerschleifer with a motor driven drive shaft, to which an eccentrically arranged to her eccentric shaft extension is arranged, and with a rotatably mounted on the eccentric shaft extension coaxial with this sanding pad holding unit to which a sanding pad can be attached and at Operation performs a circular motion about the axis line of the drive shaft, wherein the circular motion is a rotational movement about the axis line of the eccentric shaft extension superimposed by the sanding pad holding unit carries a coaxial to the axis line of the eccentric shaft extension first sprocket, which is coaxial with the drive shaft , a second ring gear having a different diameter than the first ring gear on a separate from the sanding pad holding unit gear which is freely rotatably disposed in an inoperative state and rotatably in an operative state, the gear from the outside h it is associated with operable locking device which is adjustable between a release position releasing the gear and a locking position locking the
  • the sanding pad holding unit performs a planetary rotation about the axis line of the drive shaft Eccentric motion with superimposed rotation about the axis line of the eccentric shaft extension and thus about their own axis line, so that overall results in a hypocycloidal movement. Due to the simultaneous rotation of the sanding pad holding unit is obtained at her attached sanding disc increased material abrasion on the workpiece.
  • the second sprocket when the second sprocket is inoperative, when the sprocket is allowed to rotate freely, the forced rotation around the axis line of the eccentric shaft extension is eliminated, thus giving a finer grinding pattern. This mode is selected for workpiece finishing.
  • the present invention seeks to arrange the locking device on a possible dust-protected and easily accessible location of the Exzentertellerschleifers.
  • the locking device with the associated actuating element is thus in the region of the top of the Exzentertellerschleifers and thus at a location of dust formation relatively far away. Furthermore, the actuator is easy to reach, since you usually holds such Exzentertellerschleifer at least with one of the two hands on the top.
  • the inventive measures are also structurally relatively easy to implement. This is possible by the principle used to design the eccentric shaft extension and the drive shaft hollow, so that you store the sanding pad unit inside the eccentric shaft extension and the second sprocket forming gear from above through the drive shaft between its inoperative state and can adjust its effective state.
  • the head 1 of a motor-driven Exzentertellerschleifers is shown schematically, wherein the parts not of interest in the present context are omitted and the outline of the machine housing 1 and the releasably secured sanding plate 3 are indicated by dash-dotted lines.
  • the head 1 is adjoined by a machine area 4, in which an unillustrated drive motor is arranged, which can be switched on or off by means of an on / off switch 5 arranged at the top of the eccentric disc grinder in the region of the head 1.
  • the Eccentric disc grinder is held in operation with one or two hands. This can be done on the machine section 4 containing the drive motor, which can be covered with one hand. With the other hand you can hold the head 1 against the respective workpiece down.
  • the head 1 contains a working unit which has a drive shaft 6 mounted in the machine housing 2, an eccentric shaft extension 7 arranged eccentrically to the drive shaft 6 and a grinding plate holding unit 8 rotatably mounted on the eccentric shaft extension coaxially therewith.
  • the axis line 9 of the drive shaft 4 and the axis line 10 of the eccentric shaft extension 7 extend with eccentric displacement parallel to each other.
  • the drive shaft 6 is mounted by means of a pivot bearing 11 on the machine housing. Further, located between the eccentric shaft extension 7 and the sanding pad holding unit 8, a further pivot bearing 12, so that the eccentric shaft extension 7 coaxial sanding pad holding unit 8 is rotatable relative to the eccentric shaft extension 7.
  • the sanding pad holding unit 8 has a protruding attachment member 13 on the underside of the machine housing 2 in front of this, on which the sanding pad 3 for grinding a workpiece can be attached.
  • the drive shaft 6 is formed as a hollow shaft. It is rotatably connected to a drive gear 14 which is driven by the drive motor ago. Also, the bottom of the drive shaft 6 scheduled and rotatably connected thereto eccentric shaft extension 7 is hollow, wherein the Sanding pad holding device 8, it can be seen in the embodiment of the projecting portion of the fastening member 13, is mounted in the interior of the eccentric shaft extension 7.
  • the eccentric shaft extension 7 is widened in diameter with respect to the drive shaft 6, so that the sanding pad holding unit 8 has sufficient space in the eccentric shaft extension 7.
  • the sanding pad holding unit 8 carries a first toothed rim 15, which is arranged coaxially to the axial line 10 of the eccentric shaft extension 7.
  • the first ring gear 15 meshes with a coaxial with the drive shaft 6 second gear 16, which has a different diameter than the first ring gear 15 and is arranged on a separate from the sanding pad holding unit 8 gear 17.
  • This gear 17 can assume two states, wherein it is freely rotatable in an inoperative state ( Figures 1 to 3) and in an operative state ( Figure 5) is arranged.
  • the sanding pad holding unit 8 revolves planetary about the axis line 9 of the drive shaft 6. If the second ring gear 16 is in its inoperative state, ie if the gear 17 is freely rotatable, the sanding pads guide Holding unit 8 only their circular motion. The gear 17 can follow this movement freely.
  • the second ring gear 16 is in its active state, ie if the gear 17 is arranged in a rotationally fixed manner, the first ring gear 15 and thus the sanding pad holding unit 8 will roll on the second ring gear 16 during their circular movement, so that the circular movement will be in rotational motion is superposed on the axis line 10 of the eccentric shaft extension 7, so that a total of hypocycloidal movement of the sanding pad holding unit 8 and thus results in the attached to this grinding plate.
  • This hypocycloidal movement leads to a coarser workpiece machining compared to the purely circular movement.
  • the sanding pad holding unit 8 is arranged with the arranged thereon first sprocket 15 in the interior of the eccentric shaft extension 7. It is provided in the embodiment that the first ring gear 15 is an internal gear, within which the gear 17 is arranged with the formed as an external ring gear second sprocket 16. In principle, however, it could also be the other way around so that the first ring gear is an outer ring gear and the second ring gear is an inner ring gear surrounding the outer ring gear.
  • the sanding pad holding unit 8 has at its upper end region 19 a receiving recess 20 which is open at the top end and at the edge of which the first toothed rim 15 is arranged.
  • the receiving recess 20 also receives the gear 17 with the second sprocket 16.
  • the receiving recess 20 containing the upper end portion 19 of the sanding pad holding unit 8 has a relation to the downwardly towards him, on the eccentric shaft extension 7 rotatably mounted bearing portion 21 of the sanding pad holding unit 8 enlarged diameter.
  • the sanding pad holding unit 8 is essentially formed by two parts, namely the already mentioned fastening member 13, to which the sanding pad 3 is fastened, and an inner member 22, which is arranged inside the eccentric shaft extension 17 and which are screwed together in the axial direction (Connecting screw 23).
  • the bearing part 21 is partially formed by the fastening member 13 and partially by the inner member 22.
  • the interior of the eccentric shaft extension 7 and the interior of the drive shaft 6 are in open connection with each other and merge into one another.
  • the drive shaft 6 is penetrated by a shaft piece 24, on whose the eccentric shaft extension 7 facing lower end portion of the second ring gear 16 supporting gear 17 is fixedly arranged (the connection can be done by means of a fastening screw 25) and its upper end region associated with the locking device 18 is.
  • the locking device 18 has a in the region of the grinding disc 3 opposite top of the eccentric disc grinder arranged actuator 26 which can be actuated from the outside.
  • the shaft member 24 is rotatably connected at its upper end portion with a locking member 27, on which a plurality (four in the embodiment) locking recesses 28 are arranged distributed in the circumferential direction. In principle, only a single such recess could be present. Furthermore, it would be conceivable to provide the at least one latching recess directly at the upper end of the shaft piece 24.
  • the at least one latching recess 28 is associated with a latching element 30 which is connected to the actuating element 26 so that it is carried along when adjusting the actuating element 26 becomes. If the locking element 30 is out of engagement with the locking member 27, ie it does not engage in any of the locking recesses 28, the locking member 27 and thus the shaft member 24 and the gear 17 can rotate freely. On the other hand, if the latching element 30 engages in one of the latching recesses 28, the latching member 27 is locked in the direction of rotation, so that the gearwheel 17 is arranged in a rotationally fixed manner. The locking element 30 is arranged fixed in the circumferential direction.
  • the locking member 27 is formed in the expedient embodiment of a protruding in the radial direction over the shaft piece 24 locking disk 31.
  • the locking disc 31 may be connected by means of a fastening screw 32 with the shaft piece 24.
  • the latching recesses 28 are arranged on the radially above the shaft piece 24 projecting portion of the locking disc 31. They pass through the locking disc 31 in the axial direction and are radially open on the outside.
  • the locking element 30 is loaded by a spring force.
  • the arrangement is such that the locking element 30 is held against the spring force out of engagement with the locking member 27 in the release position corresponding position of the actuating element 26. Accordingly, the locking element 30 engages in the locking position corresponding position of the actuating element 26 under the spring force in the or one of the recesses 28, as shown in Figure 5.
  • the locking element 30 is thus spring-loaded in the direction of the Arretiergliea 27. Accordingly, the transfer of the actuating element from the release position into the locked position takes place with the assistance of the spring force.
  • the reverse adjustment of the actuating element 26 from the locking position into the release position takes place counter to the spring force.
  • latching element 30 moves toward the arresting member 27 and does not immediately strike it in a latching recess 28, it rests against the locking member 27 under the spring force until a latching recess 28 has turned towards it so that the latching element 30 can engage.
  • the locking element 30 is in the release position the locking member 27 upstream in the axial direction.
  • the locking element 30 is advantageously the locking member 27 upstream downwards.
  • the latching element 30 is formed by a U-like curved bracket member 33 having a leg 34 arranged at the bottom and a leg 35 arranged at the top.
  • the locking element 30 is arranged at the free end of the lower leg 34.
  • the upper leg 35 is in driving connection with the actuating element 26.
  • the bracket element 33 is an integral part of band-shaped material.
  • the actuating element 26 is disposed above the shaft piece and thus also above the locking member 27 and movable transversely thereto by the user.
  • the locking element 30 is releasably fixed in the release position, so that it can not be moved unintentionally into the locked position.
  • the locking element 30 is connected to a locking portion 36 which is formed in the embodiment of two on both sides of the upper leg 35 of the bracket member 33 and laterally projecting step portions.
  • the locking part 36 engages in the release position corresponding position of the actuating element 26 in a stationary on Exzentertellerschleifer arranged locking recess 37 a, which is arranged in the embodiment of a fixed, U-type locking element 38 in the form of two arranged on the two U-legs 39, 40 of the locking element 38 individual recesses.
  • the bracket member 33 engages with its transitional part between the lower leg 34 and the upper leg 35 between the two U-legs 39, 40 of the locking element 38. If you transfer the actuator 26 in the locking position corresponding position ( Figure 5), the locking section 36 arrives from the locking recess 37. From the drawing it can be seen that this is done by a transverse movement of the bracket member 33. The already mentioned spring force is directed so that in the release position, the locking portion 36 of the bracket member 33, expediently upwards, against the edge of the locking recess 37 is pressed.
  • the spring force is expediently applied by a strip-shaped leaf spring 41, which has an approximately L-shaped configuration with a rounded transition region between the two leaf spring legs 42, 43.
  • the one leaf spring leg 42 extends transversely to the shaft piece 24 and is connected to the upper leg 35 of the bracket member 33 is connected.
  • the said leaf spring leg 42 could also be connected to the actuating element 26.
  • the other leaf spring leg 43 extends from the transition region between the two leaf spring legs down and is fixed at a distance from the transition region, in the embodiment with its end portion 44 fixed.
  • the leaf spring 41 exerts both a force in the transverse direction and a force in the vertical direction on the stirrup element 33 and the actuating element 26. Accordingly, the actuator 26 is actuated by the user by a transverse movement with superimposed vertical movement.
  • Switching from the fine grinding operation in which the second ring gear 16 is inoperative and the actuator 26 assumes its release position on the rough grinding operation in which the second ring gear 16 is effective and the actuator 26 assumes its locked position, and vice versa can be performed only when the drive motor .
  • the user-actuated on / off switch 5 which is connected to the drive motor via an actuating lever 45, connected to a stop element 46, which is associated with a connected to the actuator 26 counter-stop 47.
  • the on / off switch 5 is in its off position, in which the actuator 26 can be moved back and forth, so that a switch between the above modes is possible.
  • the on / off switch 5 is forward in the direction moved to the more forwardly disposed actuator 26.
  • the stop element 46 enters the movement value of the counter-stop 47, in the embodiment under the counter-stop 47, so that the actuator 26 can not be moved, which must indeed perform not only a transverse movement but also a vertical movement to switch.
  • the transverse movement of the actuating element 26 extends in the width direction of the grinder, while the switching movement of the on / off switch 5 is perpendicular thereto in the longitudinal direction of the grinder toward the actuator 26 towards or away.

Claims (16)

  1. Meuleuse à disque excentrique comportant un arbre d'entraînement, actionnable par moteur et auquel est aboutée une queue d'arbre excentrée par rapport à celui-ci, et comportant une unité porte-meule, qui est montée rotative sur la queue d'arbre excentrée et coaxialement à celle-ci et sur laquelle peut être fixée une meule et qui, en cours de service, effectue un mouvement circulaire autour de l'axe de l'arbre d'entraînement, un mouvement de rotation autour de l'axe de la queue d'arbre excentrée pouvant se superposer au mouvement circulaire en ce sens que l'unité porte-meule porte une première couronne dentée, qui est disposée coaxialement à l'axe de la queue d'arbre excentrée et qui engrène avec une deuxième couronne dentée, ayant un diamètre différent de celui de la première couronne dentée et montée coaxialement à l'arbre d'entraînement sur une roue dentée, qui est séparée de l'unité porte-meule et qui, dans une position inactive est librement rotative et, dans une position active est immobilisée en rotation, un dispositif d'immobilisation, destiné à être actionné de l'extérieur, étant associé à la roue dentée et étant réglable entre une position de déblocage libérant la roue dentée et une position de blocage immobilisant la rotation de la roue dentée, caractérisée en ce que l'arbre d'entraînement (6) et la queue d'arbre excentrée (7) sont creux et l'unité porte-meule (8) est montée à l'intérieur de la queue d'arbre excentrée (7) et est disposée avec la première couronne dentée (15) à l'intérieur de la queue d'arbre excentrée (7), et en ce que l'arbre d'entraînement (6) est traversé par une partie d'arbre (24) sur la zone d'extrémité inférieure de laquelle, orientée vers la queue d'arbre excentrée (7), est disposée de manière fixe la roue dentée (17) portant la deuxième couronne dentée (16) et dont la zone d'extrémité supérieure est associée au dispositif d'immobilisation (18) qui comporte un élément de manoeuvre (26), apte à être actionné de l'extérieur et disposé dans la zone du côté supérieur de la meuleuse à disque excentrique.
  2. Meuleuse à disque excentrique selon la revendication 1, caractérisée en ce que la première couronne dentée (15) est une couronne à denture intérieure, à l'intérieur de laquelle est disposée la roue dentée (17) munie de la deuxième couronne dentée (16) réalisée sous forme de couronne à denture extérieure.
  3. Meuleuse à disque excentrique selon la revendication 2, caractérisée en ce que l'unité porte-meule (8), dans sa zone d'extrémité supérieure, comporte un logement (20) ouvert sur le côté frontal, sur le bord duquel est disposée la première couronne dentée (15) et qui reçoit la roue dentée (17) avec la deuxième couronne dentée (16).
  4. Meuleuse à disque excentrique selon la revendication 3, caractérisée en ce que l'unité porte-meule (8), dans sa zone d'extrémité supérieure comportant le logement (20), a un diamètre plus grand que dans la partie de palier (21) de l'unité porte-meule (8), laquelle est montée vers le bas devant ladite zone d'extrémité et est montée rotative sur la queue d'arbre excentrée (7).
  5. Meuleuse à disque excentrique selon l'une des revendications 1 à 4, caractérisée en ce que la partie d'arbre (24) sur sa zone d'extrémité supérieure comporte au moins un ou plusieurs évidements d'encliquetage (28) répartis sur le pourtour ou est liée en rotation avec un organe de blocage (27) comportant ledit au moins un évidement d'encliquetage (28), et en ce que l'élément de manoeuvre (26) est relié à un élément d'encliquetage (30) associé audit au moins un évidement d'encliquetage (28).
  6. Meuleuse à disque excentrique selon la revendication 5, caractérisée en ce que l'organe de blocage (27) est formé par un disque de blocage (31) en saillie dans le sens radial au-dessus de la partie d'arbre (24), ledit au moins un évidement d'encliquetage (28) étant disposé dans la zone en saillie radiale du disque de blocage (31).
  7. Meuleuse à disque excentrique selon la revendication 5 ou 6, caractérisée en ce que l'élément d'encliquetage (30) est sollicité par la force d'un ressort et, dans la position de l'élément de manoeuvre (26) correspondant à la position de déblocage, est maintenu hors de prise dudit au moins un évidement d'encliquetage (28) dans le sens opposé à la force du ressort.
  8. Meuleuse à disque excentrique selon la revendication 7, caractérisée en ce que l'élément d'encliquetage (30), dans la position de l'élément de manoeuvre (26) correspondant à la position de blocage, s'engage sous l'effet de la force du ressort dans le ou l'un des évidements d'encliquetage (28) ou est en appui sur l'organe de blocage (27) jusqu'à ce qu'un évidement d'encliquetage (28) soit tourné vers lui.
  9. Meuleuse à disque excentrique selon la revendication 7 ou 8, caractérisée en ce que l'élément d'encliquetage (30) dans la position de déblocage est disposé dans la direction axiale devant l'organe de blocage (27).
  10. Meuleuse à disque excentrique selon la revendication 9, caractérisée en ce que l'élément d'encliquetage (30) dans la position de déblocage est disposé vers le bas devant l'organe de blocage (27).
  11. Meuleuse à disque excentrique selon la revendication 10, caractérisée en ce que l'élément d'encliquetage (30) est formé par un étrier (33) cintré en forme de U avec une branche (34) disposée en bas et une branche (35) disposée en haut, l'élément d'encliquetage (30) étant disposé au niveau de l'extrémité libre de la branche inférieure (34) et la branche supérieure (35) étant en liaison d'entraînement avec l'élément de manoeuvre (26).
  12. Meuleuse à disque excentrique selon l'une des revendications 7 à 11, caractérisée en ce que l'élément d'encliquetage (30) est relié à une partie de verrouillage (36) qui, dans une position de l'élément de manoeuvre (26) correspondant à la position de déblocage, s'engage dans un évidement de verrouillage (37) fixe, de telle sorte que la partie de verrouillage (36) parvient hors de l'évidement de verrouillage (37) lorsque l'élément de manoeuvre (26) est amené dans la position correspondant à la position de blocage.
  13. Meuleuse à disque excentrique selon l'une des revendications 1 à 14, caractérisée en ce que l'élément de manoeuvre (26) est disposé au-dessus de la partie d'arbre (24) et est déplaçable transversalement à celle-ci.
  14. Meuleuse à disque excentrique selon la revendication 13, caractérisée en ce que, pendant le mouvement transversal de l'élément de manoeuvre (26) à partir de la position de celui-ci correspondant à la position de déblocage, la partie de verrouillage (36), au début du mouvement transversal, sort de l'évidement de verrouillage (37), à la suite de quoi sous l'effet de la force de ressort, un mouvement vertical correspondant sensiblement à la direction longitudinale de la partie d'arbre (24) se superpose au mouvement transversal de l'élément de manoeuvre (26) et l'élément d'encliquetage (30) s'engage dans le ou l'un des évidements d'encliquetage (28) ou vient en appui sur l'organe de blocage (27) jusqu'à ce qu'un évidement d'encliquetage (28) soit tourné vers lui.
  15. Meuleuse à disque excentrique selon la revendication 14, caractérisée en ce que la force de ressort est appliquée par un ressort à lame (41) formé par une bande avec une forme sensiblement en L, une des branches du ressort (branche 42) étant orientée transversalement à la partie d'arbre (24) et étant reliée à la branche supérieure (35) de l'étrier (33) ou à l'élément de manoeuvre et l'autre branche du ressort (branche 43) s'étendant depuis la zone de transition entre les deux branches du ressort vers le bas et étant fixée à distance de la zone de transition.
  16. Meuleuse à disque excentrique selon l'une des revendications 1 à 15, caractérisée en ce qu'un interrupteur marche/arrêt (5) associé au moteur d'entraînement est relié à un élément de butée (46), auquel est associée une contre-butée (47) reliée à l'élément de manoeuvre (26), l'élément de butée (46) étant situé dans la trajectoire de la contre-butée (47) lorsque l'interrupteur marche/arrêt (5) est en position enclenchée, de telle sorte que l'élément de manoeuvre (26) est immobilisé en mouvement.
EP20040008919 2003-06-27 2004-04-15 Ponçeuse à plateau excentrique Expired - Lifetime EP1491291B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10329827 2003-06-27
DE2003129827 DE10329827B4 (de) 2003-06-27 2003-06-27 Exzentertellerschleifer

Publications (2)

Publication Number Publication Date
EP1491291A1 EP1491291A1 (fr) 2004-12-29
EP1491291B1 true EP1491291B1 (fr) 2006-04-05

Family

ID=33395059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040008919 Expired - Lifetime EP1491291B1 (fr) 2003-06-27 2004-04-15 Ponçeuse à plateau excentrique

Country Status (2)

Country Link
EP (1) EP1491291B1 (fr)
DE (2) DE10329827B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010012023A1 (de) 2010-03-19 2011-09-22 Festool Gmbh Hand-Werkzeugmaschine mit einem Teller-Werkzeug
DE102010012024B4 (de) 2010-03-19 2015-05-28 Festool Gmbh Handwerkzeugmaschine mit einem Zwangsrotation-Exzentergetriebe
DE102010012027A1 (de) 2010-03-19 2011-09-22 Festool Gmbh Hand-Werkzeugmaschine mit einer Radialbremse
CN115351673B (zh) * 2022-06-30 2024-02-06 徐州柏通铝业有限公司 一种手持磨削工具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857206A (en) * 1973-03-08 1974-12-31 Nat Detroit Inc Co Compound motion rubbing machine
DE4012774C1 (en) * 1990-04-21 1991-10-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De Manual eccentric grinder with rotation reverser - which is used for grinding wheel switching on and off, with eccentric spindle hub centring machine gear
JP3063872B2 (ja) * 1992-06-08 2000-07-12 株式会社マキタ 研磨機
DE4233729A1 (de) * 1992-10-07 1994-04-14 Bosch Gmbh Robert Exzentertellerschleifer mit Schleiftellerbremse
DE19901122A1 (de) * 1999-01-14 2000-07-20 Bosch Gmbh Robert Motorgetriebener Exzentertellerschleifer
DE19905624A1 (de) * 1999-02-11 2000-08-17 Festo Tooltechnic Gmbh & Co Exzenterteller-Schleifmaschine

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Publication number Publication date
EP1491291A1 (fr) 2004-12-29
DE10329827B4 (de) 2005-09-15
DE502004000416D1 (de) 2006-05-18
DE10329827A1 (de) 2005-01-27

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