EP1995019B1 - Défonceuse - Google Patents

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Publication number
EP1995019B1
EP1995019B1 EP20080004316 EP08004316A EP1995019B1 EP 1995019 B1 EP1995019 B1 EP 1995019B1 EP 20080004316 EP20080004316 EP 20080004316 EP 08004316 A EP08004316 A EP 08004316A EP 1995019 B1 EP1995019 B1 EP 1995019B1
Authority
EP
European Patent Office
Prior art keywords
clamping
stop
support table
router according
clamping element
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.)
Active
Application number
EP20080004316
Other languages
German (de)
English (en)
Other versions
EP1995019A2 (fr
EP1995019A3 (fr
Inventor
Arne Holtz
Markus Stark
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 Group and Co KG
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 Group and Co KG filed Critical Festool Group and Co KG
Publication of EP1995019A2 publication Critical patent/EP1995019A2/fr
Publication of EP1995019A3 publication Critical patent/EP1995019A3/fr
Application granted granted Critical
Publication of EP1995019B1 publication Critical patent/EP1995019B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/10—Portable hand-operated wood-milling machines; Routers

Definitions

  • the invention relates to a router with a Kirfan monocyte on a workpiece, a Jerusalem Bachsaus fundamentalung having support table, stand up from the guide columns on which a milling head with a drive unit for a downwardly projecting, milling the cross-recess cross-cutting tool guided in column longitudinal direction and displaceable in the longitudinal direction respective longitudinal position can be determined, wherein the milling head is arranged parallel to the columns, adjustable by means of a fine adjustment in its longitudinal position relative to the milling head stop rod, which is clamped by a clamping element with a stop element arranged on a movable on the top of the support table stop carrier is.
  • the milling depth must be set as accurately as possible. This applies, for example, when milling a workpiece edge, which should be rounded off and pass without offset into the workpiece surface.
  • the stop carrier is rotatably mounted on the support table and has even more stop elements, which can be rotated with non-braced stop rod under respective latching the stop carrier with the support table below the stop bar and other milling work, in which the milling head performs a milling movement in the column longitudinal direction, serve as a depth stop.
  • the rotatable and latching mounting of the stop carrier inevitably brings a certain amount of play between the stop carrier and the support table with it.
  • the resulting work result is not always satisfactory and may be subject to a tolerance in the extent of existing between the stop carrier and the support table game.
  • the resulting inaccuracy depends on the forces acting on the milling head parallel to the column longitudinal direction. These are in particular the spring force applied to the milling head in the usual routers in the direction away from the support table and the force exerted by the user when holding the router to the support table. The resultant of these forces acts on the stop carrier, which can move in the extent of said game, so that the mentioned tolerances can result.
  • the present invention is therefore an object of the invention to provide a router of the type mentioned, with the possible tolerance-free adjustment of the milling depth is possible.
  • clamping element during clamping on the one hand acts on the stop rod to the stop element out and on the other hand supported in the opposite direction to a clearance on the support table arranged abutment element.
  • the stop bar remains free of play relative to the support table regardless of the forces occurring in place, so that the desired depth of cut can be adjusted by means of fine adjustment and permanently maintained unchanged. This applies regardless of whether the milling head is moved toward or away from the support table during the fine adjustment.
  • the abutment element is formed by a radial projection which protrudes in the radial direction of a play-free arranged on the support table holding part.
  • the holding part is expediently one of the support table upstanding retaining bolt and the abutment member formed by a head piece of the retaining bolt.
  • the retaining bolt is preferably screwed into the support table.
  • the retaining bolt forms a bearing axis for the stop carrier rotatably mounted on the support table.
  • the clamping element can be rotatably mounted about an axis of rotation parallel to the longitudinal direction of the column and have a clamping surface which points in the direction of the axis of rotation and which rises in the circumferential direction.
  • the clamping element is mounted rotatably supported on the stop rod and supported in the axial direction to the support table, wherein the clamping surface is arranged on the upper side of the clamping element facing away from the support table and engages under the abutment element during clamping.
  • the clamping element is rotatably mounted on the retaining bolt and supported in the axial direction away from the support table against the abutment element, wherein the clamping surface is arranged on the support table facing the underside of the clamping element and engages over a loading surface on the stop rod during bracing.
  • a hand tool in the form of a router 1 shows that in a usual manner on a milled workpiece (not shown) auf complexityden support table 2 with a für Stammsaus principleung 3, two from the support table 2 at a distance parallel to each other upstanding guide columns 4, 5 and a has on the guide columns 4, 5 slidably guided and lockable in the respective longitudinal position milling head.
  • the milling head 6 includes a motor drive unit for rotatably driving a mounted on the support table 2 facing bottom of the milling head 6 interchangeable, in FIG. 1 dash-dotted lines indicated milling tool 29 which protrudes from the milling head 6 downwards and passes through the through-passage 3 of the support table 2 to the workpiece during milling.
  • two lateral handles 7, 8 are arranged, where the milling head can be taken.
  • the handle 7, a knob 9 is arranged, with which the milling head 6 fixed to the guide columns 4, 5 and can be solved by the guide columns 4, 5.
  • the rotary knob 9 is connected via a arranged in the interior of the handle 7 deflection gear with a cooperating with the guide columns 4, 5 clamping device, as for example in the DE 201 18 117 U1 is described.
  • the milling head 6 is clamped to the guide columns 4, 5 or the clamping is canceled, so that the milling head 6 can be moved.
  • a stop rod 10 is further arranged, which extends parallel to the guide columns 4, 5.
  • the stop rod 10 is adjustable by means of a fine adjustment 11 in its longitudinal position relative to the milling head 6.
  • the stop bar 10 in the embodiment of two parts (in principle, it could also be one piece) and consists of a connected to the milling head 6 via the fine adjustment 11 upper bar section 12 and a telescopically extendable and retractable connected to the upper bar section 12 lower rod section 13, the 2 facing the support table.
  • the lower rod section 13 can be fixed in its respective longitudinal position by means of a rotary handle 14, for example in the form of a clamping lever on the upper rod section 12.
  • a rotary handle 14 When turning the rotary handle 14 in the clamping direction, a non-rotatably connected with her threaded shank screws in the wall of the upper rod section 12 against the lower rod section 13, so that the two rod sections 12, 13 are clamped together.
  • the clamping screw moves away from the lower rod section 13, so that it can be moved.
  • the upper rod section 12 dives from below into the milling head 6 and expediently into a lateral housing extension 15 of the milling head 6. Its longitudinal position relative to the milling head 6 can be adjusted by means of the fine adjustment device 11 already mentioned.
  • the adjustment to the support table 2 out (down) or away from the support table 2 (upward) by twisting in one or the other direction of a rotatably mounted on the milling head, expediently arranged in the embodiment of the lower rod section 13 upper end of the housing extension 15, knob-like rotary member 16 which is fixedly connected in the longitudinal direction 18 with the milling head 6.
  • the fine adjustment device 11 may for example contain a spindle drive. An example of such a spindle drive is in FIG. 2 indicated by dashed lines.
  • He has a rotatably connected to the rotary member 16 threaded spindle 17, which is in threaded engagement with the upper rod section 12.
  • the upper rod section 12 is rotatably mounted so that it is displaced parallel to the column longitudinal direction 18 during rotation of the rotary member 16.
  • a stop support 19 is arranged, which is rotatably mounted about a parallel to the guide columns 4, 5 bearing axis 20.
  • a plurality of spaced about the bearing axis 20 around stop elements 21, 22, 23 are arranged, which stand at different heights.
  • the stop carrier 19 is locked to the support table 2, for example, by means of a planer toothing and under the action of a spring arrangement 26 provided between the stop carrier 19 and the support table 2.
  • stop elements 22, 23 are screwed in upstanding sleeves 24, 25 of the stop member 19 screws so that the stop elements 22, 23 can be adjusted in height.
  • the stop element 21, however, is not adjustable fixedly arranged on the stop carrier 19.
  • the stop elements 21, 22, 23 can be used as selectively interacting with the stop bar 10 depth stops, if you want to move the milling head 6 to a desired depth of cut down.
  • the stop bar 10 is preset in its longitudinal position so that it only hits the respective stop element 21, 22, 23 at the desired cutting depth. This setting of the stop bar 10 takes place by appropriately setting the lower bar section 13 on the upper bar section 12.
  • the present case is concerned that the milling head 6 is fixed before milling at a certain distance from the support table 2.
  • the workpiece edge has a special profile, for example a profile with a curve that merges into the workpiece surface, then the correspondingly shaped milling tool must be positioned as precisely as possible so that no shoulder occurs at the transition of the rounding into the workpiece surface. Therefore, the distance between the milling head and thus the milling head tool on the one hand and the support table 2 on the other hand must be able to be set very accurately. This is practically impossible with the described clamping of the milling head 6 on the guide columns 4, 5. Hereby, only a coarse adjustment of the milling depth can be achieved.
  • the stop bar 10 with one of the stop elements, with the immutable stop element 21 (in principle, it could also be another stop element) is firmly clamped by a clamping element 27 during clamping on the one hand the stop rod 10 to the stop member 21 down and on the other hand in the opposite direction, ie away in the direction of the support table, in a longitudinal direction 18th play free on the support table 2 arranged abutment element 28 is supported.
  • the stop bar 10 is not only pressed firmly against the stop element 21 but also the stop element 21 and with this the stop carrier 19 firmly against the support table 2, so that play-free conditions are present.
  • the procedure is such that the milling depth is initially roughly adjusted by displacing the milling head 6 when the milling head 6 permits rotating position of the rotary knob 6 so far that the milling tool 29 is approximately at the correct height. Then, the milling head 6 is fixed by means of the rotary knob 9 to the guide columns 4, 5 and the lower rod portion 13 of the stop bar 10 is lowered onto the stop element 21 ( FIG. 2 ). For this purpose, the rotary handle 14 is rotated accordingly, so that the lower rod section 13 can be moved relative to the upper rod section 12. Subsequently, one brings the clamping element 27 in its clamping position ( FIG.
  • a length scale 30 may be arranged on the outside of the milling head 6, which is assigned a read-out pointer 31 in the longitudinal direction of a holding rod 33 connected to its lower end via a connecting member 32 fixed to the stop bar 10 and thereby with its lower bar section 13 18 is slidably mounted and lockable.
  • the abutment element 28 is expediently formed by a radial projection 34 which projects in the radial direction from a holding part 35 arranged without play on the support table 2.
  • the holding part 35 can be formed by a support pin 36 standing up from the support table 2 and the abutment element 28 by a head piece 37 of the retaining bolt 36.
  • the retaining bolt 36 is suitably screwed fixed in the support table 2.
  • the retaining bolt 36 is used as a bearing axis 20 for the rotatably mounted on the support table 2 stop support 19.
  • the stop carrier 19 accordingly has a through-hole 38 penetrated by the retaining bolt 36.
  • a stop carrier 19 is arranged with a rotational play against the support table 2 retaining collar 39 which can be formed for example by a bearing ring.
  • the clamping element 27 is rotatably mounted about an axis parallel to the longitudinal axis 18 axis of rotation, which in the case of the embodiment of the FIGS. 1 to 5 from the stop bar 10 and in the case of the alternative embodiment FIG. 6 is formed by the retaining bolt 36.
  • the clamping element 27 thus on the stop bar 10 and thereby on the lower rod section 13 and in the case of the embodiment according to FIG. 6 rotatably mounted on the retaining bolt 36.
  • the clamping element 27 is supported in both cases to the support table 2 out.
  • a fixed support ring 40 is arranged at the bottom of the stop bar 10, via which the clamping element 27 transmits the clamping force on the stop rod 10 during clamping.
  • FIG. 6 is on the retaining pin 36 below the clamping element 27, a retaining ring 41 is arranged, which holds the clamping element 27 in height.
  • the clamping element 27 has an in the axial direction of the stop rod 10 and the retaining pin 36 formed axis of rotation facing, rising in the circumferential direction clamping surface 42.
  • the clamping surface 42 is arranged on the upper side of the clamping element 27 facing away from the support table 2 and engages under tensioning the abutment element 28, which is formed here by the head piece 37 of the retaining bolt 36.
  • FIG. 6 is the clamping surface 42 disposed on the support table 2 facing the underside of the clamping element 27 and engages during clamping a arranged on the stop bar 10 Beaufschlagungs makeup 43.
  • the respective clamping element 27 has a sleeve-shaped bearing portion 45, with which the clamping element 27 is rotatably mounted on the stop bar 10 and on the retaining bolt 36.
  • the respective Clamping element 27 further has a clamping part 46 which is arranged on the outside of the sleeve-shaped bearing part 45 and forms the clamping surface 42. The tensioning part 46 projects radially outward from the bearing part 45.
  • the arrangement is expediently made such that the tensioning part 46 extends over a smaller circumferential angle than 360 °, so that the tensioning element 27 has a peripheral region 47 which is free of the tensioning part 46.
  • the free peripheral region 47 is so large that the clamping element 27, it is mounted on the stop bar 10, the abutment member 28 and, if it is mounted on the retaining pin 36, the stop rod 10 can be moved past. This is necessary so that you can lower the previously arranged above holding rod 10 on the stop element 21.
  • the clamping element 27 has a protruding from him handle 48, where the user can take the clamping element 27 to rotate.
  • associated stop member 21 may have a centering mandrel 49 on its upper side facing the stop bar 10, which is associated with a corresponding centering on the stop bar 10. In this way, the stop bar 10 is exactly centered during clamping.
  • FIGS. 1 and 3 show with respect to the embodiment of the FIGS. 1 to 5 the situation in which the stop bar 10 is lowered onto the stop element 21, the tensioning element 27, however, still occupies its release position remote from the abutment element 28.
  • the tensioning element 27 Upon rotation of the clamping element 27 whose clamping surface 42 passes under the abutment member 28, such as FIG. 4 shows.
  • FIG. 6 shows the local clamping element 27 in its release position. If the local tensioning element 27 is twisted, its tensioning part 46 passes into the engagement recess 44 of the stop rod 10 and presses against its loading surface 43. The tensioning element 27 is supported on the abutment element 28 formed by the head piece 37 of the retaining bolt 36.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Claims (15)

  1. Défonceuse comprenant une semelle (2) à placer sur une pièce à usiner, présentant un évidement de passage, de laquelle semelle des colonnes de guidage (4, 5) font saillie vers le haut, au niveau desquelles une tête de fraisage (29) dotée d'un groupe d'entraînement pour un outil de fraisage faisant saillie vers le bas, traversant lors du fraisage l'évidement de passage est guidée de manière à pouvoir être déplacée par coulissement dans la direction longitudinale des colonnes et peut être immobilisée dans la position longitudinale respective, sachant qu'une tige de butée (10) parallèle par rapport aux colonnes (4, 5), pouvant être déplacée dans sa position longitudinale par rapport à la tête de fraisage au moyen d'un dispositif de réglage haute précision est disposée au niveau de la tête de fraisage, laquelle tige de butée peut être serrée à un élément de butée (21) au moyen d'un élément de serrage (27), lequel élément de butée est disposé au niveau d'un support de butée logé de manière à pouvoir être déplacé au niveau du côté supérieur de la semelle, caractérisée en ce que l'élément de serrage (27) sollicite lors du serrage d'une part la tige de butée (10) en direction de l'élément de butée (21) et s'appuie d'autre part, dans la direction opposée, au niveau d'un élément de contre-palier (28) disposé sans jeu au niveau de la semelle (2).
  2. Défonceuse selon la revendication 1, caractérisée en ce que l'élément de contre-palier (28) est formé par une partie radiale faisant saillie (34), qui dépasse dans la direction radiale d'un élément de maintien (35) disposé sans jeu au niveau de la semelle (2).
  3. Défonceuse selon la revendication 2, caractérisée en ce que l'élément de maintien (35) est formé par un boulon de maintien (36) faisant saillie vers le haut de la semelle (2), et en ce que l'élément de contre-palier (28) est formé par une pièce formant la tête (37) du boulon de maintien (36).
  4. Défonceuse selon la revendication 3, caractérisée en ce que le boulon de maintien (36) est vissé dans la semelle (2).
  5. Défonceuse selon la revendication 3 ou 4, caractérisée en ce que le boulon de maintien (36) forme un axe de palier pour le support de butée (19) logé de manière à pouvoir tourner au niveau de la semelle (2).
  6. Défonceuse selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément de serrage (27) est logé de manière à pouvoir tourner autour d'un axe de rotation parallèle par rapport à la direction longitudinale (18) des colonnes et présente une face de serrage (42) orientée dans la direction axiale de l'axe de rotation, ascendante dans la direction périphérique.
  7. Défonceuse selon la revendication 6, caractérisée en ce que l'élément de serrage (27) est logé de manière à pouvoir tourner sur la tige de butée (10), sachant que la face de serrage (42) est disposée au niveau du côté supérieur, opposé à la semelle (2), de l'élément de serrage (27) et vient en prise par le bas lors du serrage avec l'élément de contre-palier (28).
  8. Défonceuse selon la revendication 6, caractérisée en ce que l'élément de serrage (27) est logé de manière à pouvoir tourner sur le boulon de maintien (36), sachant que la face de serrage (42) est disposée au niveau du côté inférieur, tourné vers la semelle (2), de l'élément de serrage (27) et recouvre lors du serrage, une face de sollicitation (43) au niveau de la tige de butée (10).
  9. Défonceuse selon la revendication 8, caractérisée en ce que la tige de butée (10) présente un évidement d'engrènement (44) délimité par la face de sollicitation (43), destiné à venir en prise avec l'élément de serrage (27) lors du serrage.
  10. Défonceuse selon l'une quelconque des revendications 6 à 9, caractérisée en ce que l'élément de serrage (27) présente une partie formant palier (45) présentant une forme de douille, par laquelle l'élément de serrage (27) est logé de manière à pouvoir tourner, et une partie de serrage (46) disposée au niveau du côté extérieur de la partie formant palier (45) présentant une forme de douille, formant la face de serrage (42).
  11. Défonceuse selon la revendication 10, caractérisée en ce que la partie de serrage (46) s'étend sur un angle périphérique inférieur à 360° de sorte que l'élément de serrage (27) présente une zone périphérique exempte de la partie de serrage (46) et peut être déplacé le long de la tige de butée (10) si l'élément de serrage est logé au niveau de la tige de butée (10), au niveau de l'élément de contre-palier (28) ou si l'élément de serrage est logé au niveau du boulon de maintien (36).
  12. Défonceuse selon l'une quelconque des revendications 6 à 11, caractérisée en ce que l'élément de serrage (27) présente une poignée (48) dépassant de ce dernier.
  13. Défonceuse selon l'une quelconque des revendications 1 à 12, caractérisée en ce que l'élément de contre-palier (28) est disposé par rapport à la semelle (2) à une distance plus grande que l'élément de butée (21).
  14. Défonceuse selon l'une quelconque des revendications 1 à 13, caractérisée en ce que l'élément de butée (21) associé à la tige de butée (10) est relié de manière immobile, de manière appropriée en un seul tenant, au support de butée (19).
  15. Défonceuse selon l'une quelconque des revendications 1 à 14, caractérisée en ce que l'élément de butée (21) associé à la tige de butée (10) présente au niveau de son côté supérieur tourné vers la tige de butée (10) un mandrin de centrage (49), auquel est associé un évidement de centrage au niveau de la tige de butée (10).
EP20080004316 2007-05-22 2008-03-08 Défonceuse Active EP1995019B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710023783 DE102007023783B3 (de) 2007-05-22 2007-05-22 Oberfräse

Publications (3)

Publication Number Publication Date
EP1995019A2 EP1995019A2 (fr) 2008-11-26
EP1995019A3 EP1995019A3 (fr) 2013-06-12
EP1995019B1 true EP1995019B1 (fr) 2014-01-15

Family

ID=39531110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080004316 Active EP1995019B1 (fr) 2007-05-22 2008-03-08 Défonceuse

Country Status (2)

Country Link
EP (1) EP1995019B1 (fr)
DE (1) DE102007023783B3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1770357U (de) * 1957-06-18 1958-07-17 Rudolf Nitzsche Fraestiefen-feststelleinrichtung fuer elektrische handfraesmaschinen.
DE7415327U (de) * 1974-05-02 1974-08-01 Lutz E Kg Vorrichtung zur Schnittiefeneinstellung von Hand-Oberfräsen
DE3314419C2 (de) * 1983-04-21 1985-09-12 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Oberfräse mit Staubabsaugung
DE3347764C2 (de) * 1983-04-21 1986-08-14 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Oberfräse
US6488455B1 (en) * 2000-07-28 2002-12-03 S-B Power Tool Company Plunge base router
DE20118117U1 (de) * 2001-11-07 2002-01-10 Festool GmbH, 73240 Wendlingen Werkzeugmaschine mit zwei Säulen und einer Feststelleinrichtung

Also Published As

Publication number Publication date
EP1995019A2 (fr) 2008-11-26
EP1995019A3 (fr) 2013-06-12
DE102007023783B3 (de) 2008-07-24

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