EP0181623B1 - Dispositif auxiliaire pour fraiser des rainures pour assembler des planches à angle droit - Google Patents

Dispositif auxiliaire pour fraiser des rainures pour assembler des planches à angle droit Download PDF

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Publication number
EP0181623B1
EP0181623B1 EP85114264A EP85114264A EP0181623B1 EP 0181623 B1 EP0181623 B1 EP 0181623B1 EP 85114264 A EP85114264 A EP 85114264A EP 85114264 A EP85114264 A EP 85114264A EP 0181623 B1 EP0181623 B1 EP 0181623B1
Authority
EP
European Patent Office
Prior art keywords
alignment
slits
auxiliary device
table support
cutter
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
Application number
EP85114264A
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German (de)
English (en)
Other versions
EP0181623A1 (fr
Inventor
Robert Wolff
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT85114264T priority Critical patent/ATE33580T1/de
Publication of EP0181623A1 publication Critical patent/EP0181623A1/fr
Application granted granted Critical
Publication of EP0181623B1 publication Critical patent/EP0181623B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/08—Making dovetails, tongues, or tenons, of definite limited length
    • B27F1/12—Corner- locking mechanisms, i.e. machines for cutting crenellated joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303416—Templet, tracer, or cutter
    • Y10T409/303696—Templet

Definitions

  • the invention relates to an auxiliary device for milling grooves in right-angled planks for comb-corner connections by means of a hand-held milling cutter, on the workbench side consisting of a right-angled guide part with a table support plate and a back plate, both plates being comb-like with slots which are flush in the area of the corner angle merge into one another, and on the milling cutter side consists of a guide piece guided in the slots.
  • auxiliary device for milling such corner connections by means of a hand-held router which on the workbench side consists of a right-angled guide part with a table support plate and a back plate. Both plates are comb-like with slots that merge into one another in the area of the corner angle. A guide piece is provided on the cutter side and is guided in the slots.
  • this device it is possible to mill out the grooves in the longitudinal and transverse wood with the required relative positional accuracy without complex calculations and measurements, however, the second board to be machined must be clamped together with the guide piece on the workbench side by exactly half the groove spacing, if e.g. two boards of the same width are to be joined flush. This still requires certain alignment work and leaves room for error.
  • the invention has for its object to improve the generic auxiliary device in such a way that the correct alignment of the second board to be processed results inevitably and foolproof.
  • this object is achieved in that the table support plate is provided on its free edge facing away from the corner angle with at least one alignment finger projecting parallel to the extension of the slots of the table support plate, which, offset from the slots by a gap, is aligned with a prong spacing two slots lies and whose cross-section is adapted to the contour of the groove to be milled.
  • the grooves in the longitudinal wood can first be milled in the usual way. Then this first board is turned over and placed with the groove side - with flush side edges - on the second board.
  • the alignment of the auxiliary device for milling the transverse grooves in the second board is now achieved by inserting the alignment finger into a groove of the first board. In this way, the grooves and tines of the two boards can be correctly and dimensionally allocated without taking any measurements and without complicated alignment work, taking into account their flushness - or a desired edge overhang.
  • two alignment fingers can be arranged in the middle of the table top, the center distance of which is equal to the center distance between two adjacent slots.
  • the arrangement of two alignment fingers improves the guiding accuracy of the auxiliary device, and due to the adjacent position of the alignment fingers, this advantage also with very narrow corner connections, i.e. narrow boards, can take effect.
  • one or two further alignment fingers can be provided in the outer region of the table support plate. These additional alignment fingers improve the contact between the longitudinal timber and the auxiliary device in the case of wide corner connections.
  • the alignment finger (s) can have a trapezoidal cross section, the smaller base lying in the table support plane of the table support plate.
  • This trapezoidal cross section is adapted in a special way to suitably designed dovetail grooves.
  • this embodiment can also be associated with a cylindrical end mill, the diameter of which is equal to the length of the large trapezoidal base. As a result, both frustoconical and cylindrical end mills can be used with the same auxiliary device.
  • the alignment finger or fingers can have a rectangular cross section.
  • This contour is particularly suitable for milling rectangular grooves.
  • a frustoconical end mill can also be used, the smallest diameter of which is equal to the width of the rectangular cross section.
  • the use for both types of grooves is possible.
  • Fig. 1 shows a perspective view of the guide part 1 of an auxiliary device for milling grooves in rectangular planks for comb-corner joints.
  • the guide part has the basic shape of a U-shaped screw clamp which can be clamped to a workbench 3 or the like by means of two clamping screws 2, 2, cf. 4 to 6.
  • the guide part 1 comprises, in addition to a clamping leg 4 for the clamping screws 2, 2, a table support plate 5 and a back plate 6, which are aligned at right angles to one another.
  • Both plates 5, 6 are comb-like with slots 7, 8, which merge into one another in the area of the corner angle 9 between the two plates 5, 6. Tines 10 and 11 remain between the slots 7, 8, which also merge into one another and have the same width as the slots 7, 8.
  • the tines 10, 11 are provided on their longitudinal edges facing the workbench 3 with corner grooves 12, 13 which serve as a guide for a cutter-side, T-shaped guide piece 14; see. 2 to 5 in particular.
  • corner grooves 12, 13 are only indicated on the surfaces of the plates 5 and 6 in FIG. 1.
  • Fig. 4 shows a first step for milling longitudinal grooves 15 in a first board 16, the longitudinal wood.
  • A, e.g. B. frustoconical, end mill 17 is inserted by means of the guide piece 14 into a slot 7 of the table platen 5 in the horizontal direction.
  • a second board 18, the cross member is provided with transverse grooves 19 in a second operation.
  • the table support plate 5 of the guide part 1 is provided with two alignment fingers 22 on its free edge 21 facing away from the corner bracket 9. These protrude parallel to the extension of the slots 7 of the table support plate 5 and are offset from the slots 7 in such a way that they are each in alignment with a prong 10 spacing two slots 7.
  • the first board 16 is now turned over and placed with the groove side on the second board. Then the two alignment fingers 22 are inserted into the end openings of the longitudinal grooves 15 of the first board 16 so far that there is a flush contact between the front edge 23 of the first board 16 and the free edge 21 of the table platen 5.
  • the two boards 16, 18 are now aligned with one another with their side edges 24, 25.
  • the second board 18 can now be clamped to the workbench 3 with the aid of the guide part 1, the transverse grooves 19 to be milled in the vertical direction now being precisely aligned.
  • the two alignment fingers 22 are arranged in the middle of the table support plate 5, their center distance being equal to the center distance between two adjacent slots 7. In this way, good guidance is ensured even with corner connections between very narrow boards.
  • 5 further alignment fingers 26, indicated by dash-dotted lines, can be provided on the free edge 21 in the outer region of the table support plate.
  • FIG. 7 shows a section in the area of a slot 8 of the back plate, which has a trapezoidally enlarged passage 27 for the frustoconical end mill 17, cf. also FIG. 8.
  • dovetail-shaped grooves 15 are created.
  • This contour is adapted to the cross section of the alignment fingers 22, as FIG. 9 shows more precisely.
  • the alignment finger 22 has a trapezoidal cross-section, the smaller base 28, in adaptation to the flipped first board 16, lying on the table support surface 29 of the table support plate 5.
  • the length 30 of the small trapezoidal base corresponds to the smallest diameter 31 of the truncated cone cutter 17.
  • the embodiment of the passage opening 27 and the alignment finger 22 also allow the use of a cylindrical end mill 32 according to FIG. 10, only its diameter 33 having to be equal to the length of the large trapezoidal base 34 of the alignment finger 22.
  • FIG. 11 shows a second example of an alignment finger 35 with a rectangular cross-section, which of course is first of all adapted to rectangular grooves of the same width.
  • alignment with dotted tail-shaped grooves - or a frustoconical cutter 36 - is also possible if the width of the alignment fingers 35 corresponds to the narrowest width at the opening of this groove.
  • the guide part 37 shows a further embodiment of the guide part 37 of an auxiliary device for milling grooves in the case of boards for comb-corner connections which are to be contracted at right angles.
  • the guide part 37 consists of a guide plate 38 and an alignment plate 39 arranged at right angles to it.
  • the guide plate 38 is, like the table support plate or the back plate of the embodiment according to FIG. 1, provided with comb-like slots 40 which pass through the alignment plate 39.
  • the alignment plate 39 itself has no slots, but is provided on its free edge 42 facing away from the corner angle 41 of the plates 38, 39 with two alignment fingers 43 which protrude perpendicularly to the extent of the slots 40 of the guide plate 38.
  • the alignment fingers are facing the slots 40 offset so that they lie in alignment with a prong 44 spacing two slots 40.
  • the cross section of the alignment fingers 43 is adapted to the contour of a groove 15 to be milled.
  • longitudinal grooves 15 can be milled in a first board 16 in a first step analogous to FIG. 4.
  • the guide plate 38 is placed on the board 16 and the guide part 37 is clamped to the work table 3 with a screw clamp or the like (not shown).
  • transverse grooves 19 can be milled in a second board 18 in a second step.
  • the alignment plate 39 is placed on the second board 18, while the guide plate 38 now lies vertically in front of the work table 3 with the slots 40 pointing downward.
  • the guide part 37 can be precisely aligned again and then clamped onto the work table 3.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Joining Of Corner Units Of Frames Or Wings (AREA)

Claims (8)

1. Dispositif auxiliaire pour le fraisage de rainures dans des planches à réunir à angle droit par assemblage à queue d'aronde, pour liaison d'angle en peigne, au moyen d'une fraise conduite à la main, dispositif consitué, côté étabili, d'une partie guide (1) à angle droit munie d'une plaque d'appui sur établi (5) et une plaque dorsale (6), les deux plaques (5, 6) étant munies de fentes (7, 8) du genre peigne qui, dans la zone de la partie d'angle (9), passent l'une dans l'autre alignées, et constitué côté fraise d'une pièce de guidage guidée dans les fentes (7, 8), caractérisé par le fait que la plaque d'appui sur établi (5) est munie, sur son bord libre (21) écarté de la partie d'angle, d'au moins un doigt d'alignement (22) en saillie par rapport à la plaque d'appui sur établi (5), et parallèle au prolongement des fentes (7), doigt qui est décalé d'un vide par rapport aux fentes (7), est dans l'alignement d'une queue d'aronde (10) séparant deux fentes (7) et dont la section est adaptée au contour de la rainure (15) à fraiser.
2. Dispositif auxiliaire selon la revendication 1, caractérisé par le fait que sont prévues deux doigts d'alignement (22) au centre de la plaque d'appui sur établi (5) dont l'écartement est égal à l'écartement entre deux fentes voisines (7).
3. Dispositif auxiliaire selon la revendication 2, caractérisé par le fait que sont prévus un ou deux autres doigts d'alignement (26) dans la zone extérieure de la plaque d'appui sur établi (5).
4. Dispositif auxiliaire selon l'une ou plusieurs des revendications 2, caractérisé par le fait que le ou les doigts d'alignement (22) ont une section trapézoïdale, dont la petite base (28) est située dans le plan d'appui sur établi (29) de la plaque d'appui sur établi (5).
5. Dispositif auxiliaire selon la revendication 4, caractérisé par une fraise à queue (32) cylindrique, associée, dont le diamètre est égal à la longueur de la grande base (34) du trapèze.
6. Dispositif auxiliaire selon l'une ou plusieurs des revendications 1 à 3, caractérisé par le fait que le ou les doigts d'alignement (35) ont une section rectangulaire.
7. Dispositif auxiliaire selon la revendication 6, caractérisé par une fraise à queue (36) de forme tronconique, associée, dont le plus petit diamètre est égal à la largeur de la section rectangulaire du doigts d'alignement (35).
8. Dispositif auxiliaire pour le fraisage de rainures dans des planches à réunir à angle droit par assemblage à queue d'aronde, pour liaison d'angle en peigne, au moyen d'une fraise conduite à la main, dispositif constitué, côté étabili, d'une partie guide (37) à angle droit, munie d'une plaque de guidage (38) et d'une plaque d'alignement (39), la plaque de guidage (38) étant munie de fentes (40) genre peigne, qui, dans la zone de l'angle (41), traversent la plaque d'alignement (39), et constitué, côté fraise, d'une pièce de guidage (14) guidée dans les fentes (40), caractérisé par le fait que la plaque d'alignement (39) est munie, sur son bord libre (42) écarté de d'angle (41), d'au moins un doigt d'alignement (43) en saillie par rapport à la plaque de guidage (38) à l'aplomb du prolongement des fentes (40), et qui est décalé d'un vide par rapport aux fentes (40), se trouve dans l'alignement d'une queue d'aronde (44) séparant deux fentes (40) et sa section est adaptée au contour de la rainure à fraiser (15).
EP85114264A 1984-11-09 1985-11-08 Dispositif auxiliaire pour fraiser des rainures pour assembler des planches à angle droit Expired EP0181623B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114264T ATE33580T1 (de) 1984-11-09 1985-11-08 Hilfsvorrichtung zum fraesen von nuten bei rechtwinklig zusammenzuzinkenden brettern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843440945 DE3440945A1 (de) 1984-11-09 1984-11-09 Hilfsvorrichtung zum fraesen von nuten bei rechtwinklig zusammenzuzinkenden brettern
DE3440945 1984-11-09

Publications (2)

Publication Number Publication Date
EP0181623A1 EP0181623A1 (fr) 1986-05-21
EP0181623B1 true EP0181623B1 (fr) 1988-04-20

Family

ID=6249882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114264A Expired EP0181623B1 (fr) 1984-11-09 1985-11-08 Dispositif auxiliaire pour fraiser des rainures pour assembler des planches à angle droit

Country Status (4)

Country Link
US (1) US4648433A (fr)
EP (1) EP0181623B1 (fr)
AT (1) ATE33580T1 (fr)
DE (2) DE3440945A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928399A (en) * 1989-02-09 1990-05-29 Jer's Pattern Project, Inc. Marking template
US5199477A (en) * 1992-02-13 1993-04-06 Keller David A Apparatus and method for forming dovetail joints
US5421384A (en) * 1994-01-26 1995-06-06 Nuwordu; Alexander A. Unlimited width dovetailing system with overhead clamp
US5692861A (en) * 1996-09-12 1997-12-02 Stottmann; Richard L. Method and device for making dovetail and pin pattern plates
US7455089B2 (en) * 2004-07-30 2008-11-25 Black & Decker Inc. Jig apparatus
US7857020B2 (en) * 2004-07-30 2010-12-28 Black & Decker Inc. Jig apparatus
US7434604B2 (en) * 2004-07-30 2008-10-14 Black & Decker Inc. Jig apparatus
GB2422132B (en) * 2005-01-12 2009-07-15 Derek Quinton Slot cutting apparatus
US7241091B1 (en) * 2006-06-23 2007-07-10 Kun-Ying Yang Decoration-used mold unit
USD560235S1 (en) 2006-08-22 2008-01-22 Black & Decker Corporation Sliding tapered dovetail and fixed half-blind dovetail template
USD573615S1 (en) 2006-08-22 2008-07-22 Black & Decker Inc. Dust collector
USD559875S1 (en) 2006-08-22 2008-01-15 Black & Decker Corporation Half-blind router bit depth guide
USD569882S1 (en) 2006-08-22 2008-05-27 Black & Decker Inc. Miniature variable-spaced finger assembly
USD559287S1 (en) 2006-08-22 2008-01-08 Black & Decker Corporation Variable-spaced finger assembly
USD575312S1 (en) 2006-08-22 2008-08-19 Black & Decker Inc. Outrigger for a jig apparatus
USD571836S1 (en) 2006-08-22 2008-06-24 Black & Decker Inc. Box joint template
USD577752S1 (en) 2006-08-22 2008-09-30 Black & Decker Inc. Jig apparatus
USD574864S1 (en) 2006-08-22 2008-08-12 Black & Decker Inc Mortise and tenon assembly
US7828024B1 (en) * 2008-05-07 2010-11-09 General Tool Mfg. Co, LLC Dovetail jig
US20160214425A1 (en) * 2015-01-22 2016-07-28 Mabel Ko Writing Template

Family Cites Families (5)

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DE1004363B (de) * 1953-11-06 1957-03-14 Bosch Gmbh Robert Zusatzeinrichtung fuer elektrische Hand-werkzeugmaschinen mit einem zum Fuehren des zu bearbeitenden Werkstuecks dienenden Auflagetisch
US3606916A (en) * 1969-09-30 1971-09-21 Mildred M Day Gauge apparatus and method for cutting uniformly spaced routered tenons and mortises
DE2524247A1 (de) * 1975-05-31 1976-12-09 Robert Wolff Fraeslehre fuer das fraesen der schwalbenschwanznuten bei rechtwinklig zusammenzuzinkenden brettern
DE2642924C3 (de) * 1976-09-24 1980-02-07 Robert 5446 Engeln Wolff Hilfsvorrichtung zum Fräsen von Schwalbenschwanznuten bei rechtwinklig zusammenzuzinkenden Brettern
IT1075361B (it) * 1976-05-15 1985-04-22 Wolff Robert Maschera per fresare incavi a coda di rondine in tavole da congiungere con incastro ortogonlae

Also Published As

Publication number Publication date
ATE33580T1 (de) 1988-05-15
DE3440945A1 (de) 1986-05-15
DE3562198D1 (en) 1988-05-26
EP0181623A1 (fr) 1986-05-21
US4648433A (en) 1987-03-10

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