EP0119890A1 - Vorrichtung zum Schrägschneiden eines Werkstücks - Google Patents

Vorrichtung zum Schrägschneiden eines Werkstücks Download PDF

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Publication number
EP0119890A1
EP0119890A1 EP84400339A EP84400339A EP0119890A1 EP 0119890 A1 EP0119890 A1 EP 0119890A1 EP 84400339 A EP84400339 A EP 84400339A EP 84400339 A EP84400339 A EP 84400339A EP 0119890 A1 EP0119890 A1 EP 0119890A1
Authority
EP
European Patent Office
Prior art keywords
support
flanges
slots
faces
flange
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
Application number
EP84400339A
Other languages
English (en)
French (fr)
Other versions
EP0119890B1 (de
Inventor
Claude Guiu
Régis Artru
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
Priority claimed from FR8302548A external-priority patent/FR2541172A1/fr
Priority claimed from FR8400148A external-priority patent/FR2557827B2/fr
Application filed by Individual filed Critical Individual
Priority to AT84400339T priority Critical patent/ATE25027T1/de
Publication of EP0119890A1 publication Critical patent/EP0119890A1/de
Application granted granted Critical
Publication of EP0119890B1 publication Critical patent/EP0119890B1/de
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
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes

Definitions

  • the present invention relates to an apparatus for bevel cutting of a part such as a board, a molding, etc.
  • a miter box For bevel cutting of elongated parts, such as moldings intended to form a frame, a miter box is generally used which has a U-shaped cross section and whose side walls are drilled right through coplanar slots defining several cutting planes inclined at various angles to the longitudinal axis of the miter box. These miter boxes generally allow cuts to be made at angles of 30, 45 or 90 ° relative to the longitudinal axis.
  • the present invention relates to an apparatus making it possible to adjust the cutting angle at will relative to a reference plane and moreover to cut parts of variable width.
  • this apparatus for bevel cutting of a part having a reference surface with respect to which the cutting plane must be inclined by the desired angle is characterized in that it comprises two vertical flanges parallel in which are provided respectively two slots for guiding a saw blade, these two slots being parallel and opening into the edges of the flanges to define the cutting plane, means for connecting the two parallel vertical flanges to keep them at a distance from each other along a transverse axis common, a support mounted, on each flange, orientable around the transverse axis and having an upper support face, the two parallel upper support faces defining a support plane for the reference surface of the workpiece , and means for locking each support on the associated flange so that its bearing face makes, with the guide slot of the corresponding flange, an angle equal to the desired cutting angle.
  • the connecting means between the two parallel vertical flanges are provided to allow mutual displacement of the two flanges one towards the other, in order to ensure the tightening and blocking of the piece to be cut between the facing faces of the two flanges.
  • These connecting and tightening means are advantageously constituted by a threaded rod mounted for rotation and locked in translation in one of the flanges and which is screwed into a thread provided in the other flange.
  • the apparatus shown in the drawing is intended to make it possible to bevel a piece 1 which may consist of a board, a molding, etc. of any width.
  • the device essentially comprises two parallel vertical flanges 2, 3, between which extends the part to be cut 1. These flanges 2, 3, of reduced thickness, have a periphery of any shape delimited by their respective edges 2a, 3a.
  • the piece to be cut 1 is supported on two supports 7, 8 mounted for rotation on the respective flanges 2, 3 about a common transverse axis xy.
  • the supports 7, 8 can be made up of yokes comprising webs 7a, 8a parallel to the edges 2a, 3a of the flanges 2, 3 and into which are screwed locking screws 9, 10 the tips of which can come into contact with the edges 2a, 3a.
  • the cores 7a, 8a are extended, inside, that is to say in the space between the two flanges 2, 3, by wings 7b, 8b of great length and, outside, by wings 7c, 8c much shorter.
  • each of the supports 7, 8 in the form of a yoke covers in a way the flange 2, 3 which is associated with it.
  • the internal wings 7b, 8b of great length are crossed by a threaded rod 11 materializing the common transverse axis xy. These wings 7b, 8b present try, on their respective upper faces 7e, 8e, notches 7d, 8d allowing engagement therein of the lower cutting edge of the saw blade 6.
  • the inner wings 7b, 8b of the respective supports 7, 8 are rotatably mounted on internal hubs 2b, 3b, that is to say directed towards each other, two flanges 2, 3.
  • the threaded rod 11 which passes through these hubs 2b, 3b, is mounted in one of the flanges, in this case in the flange 2, being blocked in translation relative to the latter, while this threaded rod is screwed into a tapped hole drilled right through in the other flange 3.
  • An operating handle 13 is provided at one end of the threaded rod 11.
  • the external wings 7c, 8c of the respective supports 7, 8 constitute movable indexes facing circular graduations 14 traced on the external faces of the flanges 2, 3.
  • the supports 7, 8 are first of all oriented in a position such that their upper bearing faces 7e, 8e make , with the guide slots 4, 5, an angle a. corresponding to the desired angle for the bevel cut of the part 1.
  • This orientation is obtained by moving the short wings 7c, 8c forming an index facing the circular graduations 14 and blocking the supports 7, 8 by means of the screws 9, 10 in the appropriate positions corresponding to the angle; desired.
  • the upper faces 7e, 8e of the supports 7, 8 thus define a support plane P ( Figures 1 and 3) substantially horizontal for the part 1 to be cut.
  • the device according to the invention allows to cut the piece 1 at an angle a having any value. Furthermore the device allows to cut pieces 1 having any width as the two lateral flanges 2, 3 can be more or less distant from each other.
  • Figures 4 and 5 illustrate various embodiments of the feet which can be associated with the flanges 2, 3 to allow them to rest on an appropriate plane 15 during the cutting operation.
  • each of the lateral flanges 2, 3 is pierced, in its lower part, which is opposite to the slots 4, 5, with a succession of holes 16 distributed over a circular arc centered on the transverse axis xy and in which are engaged the bent ends 17 of feet 18 of wire or similar material. It is possible, by appropriately choosing the two holes 16 in which the bent ends 17 are engaged, to ensure that, during cutting, the supports 7, 8 and the part 1 to be cut are substantially horizontal, as it is illustrated in figure 4.
  • FIG. 5 illustrates an alternative embodiment in which each leg 19, constituted by a vertical plate having for example a trapezoidal shape, is made integral with the associated flange 2, 3 by means of connecting members 20, such as balls, engaged in two holes 16 corresponding to the flange 2 or 3.
  • FIG. 6 illustrates an adaptation of the apparatus according to the invention in the case where it is desired to keep a substantially constant width between the two flanges 2, 3 for repetitive work, while maintaining tightness.
  • rigid intermediate wedges 21 are arranged between the two flanges 2, 3 so as to extend over the entire space provided between these two flanges, with additionally an elastic wedge 22 to ensure tightening.
  • the shims 21 may have different widths so as to allow the device to be preset for different working widths. All the rigid wedges 21 and the elastic wedge 22 are pierced with a central hole for the passage of the clamping and locking rod 11.
  • These wedges also preferably have, on one of their front faces, lugs 23 which come to engage in corresponding notches 24 provided in the other end face of the neighboring wedge.
  • the wedges 21 thus remain slightly nested one inside the other, as a result of the engagement of the lugs 23 in the notches 24, when the apparatus is loosened and the elastic wedge 22 is relaxed.
  • Particular lugs 25 extend through the elastic shim 22 and are engaged in notches of the neighboring elements and more particularly of the adjacent rigid shim 21 and possibly in notches 26 provided in one of the neighboring supports 7, 8.
  • the bevel cutting device shown in Figures 7 to 12 allows to cut pieces of different shapes such as a board 1 ( Figure 11) or a corner molding 31 ( Figure 12), of any width.
  • the apparatus essentially comprises two parallel vertical flanges 32, 33 between which extends and is held tight the part to be cut.
  • Each of these flanges 32, 33 comprises a circular part 32a, 33a extended, on a part of its periphery, by an arm 32b, 33b 'extending outwards, the two circular parts being able to rotate around the same axis common xy.
  • slots 34, 35 for guiding a saw blade, parallel to one another, are provided in the circular central part 32a, 33a and in the corresponding arm 32b, 33b of the two flanges 32, 33.
  • the two flanges 32, 33 are rotatably mounted on respective supports 36, 37 constituted by two parallel vertical plates, of rectangular shape, respectively having upper horizontal bearing faces 36a, 37a for the part to be cut.
  • the two support plates 36, 37 which can be fixed, at their lower part, to a table or a workbench, also have, in their external faces 36b, 37b, semi-circular recesses 36c, 37c in which the parts are housed respectively.
  • the two support plates 36, 37 carrying the two associated rotary flanges 32, 33 are connected to each other by means of the threaded rod 11 materializing the common transverse axis xy around which the two flanges 32, 33 rotate.
  • This threaded rod 11 is rotatably mounted in one of the support plates, for example the plate 37, being locked in translation relative to the latter, while this threaded rod is screwed into a tapped hole drilled right through. share in the other support plate 36.
  • the two flanges 32, 33 are mounted to rotate freely around the common axis xy, on their respective support plates 36, 37, and they can be locked on these support plates in any angular position desired with respect to these plates, position in which the guide slots 34, 35 make, with the upper bearing faces 36a, 37 of the support plates 36, 37 an angle at which the bevel cut must be made.
  • each of the flanges 32, 33 has, on its outer face and along its periphery, a circular graduated scale 38 scrolling past an index 39 secured to a locking button 41 carried by the corresponding support plate.
  • This button 41 makes it possible to block the corresponding flange in the desired angular position, when the index 39 is found to be placed opposite the desired graduation of the scale 38 carried by the flange.
  • cutouts 42 In the horizontal upper support faces 36a, 37a of the support plates 36, 37 are provided cutouts 42 which are always located aligned, if one looks in a direction parallel to the common axis of rotation xy, with the end portions of the slots 34, 35 for guiding the saw blade.
  • the two cutouts 42 are located in the immediate vicinity of the threaded rod 41 materializing the axis of rotation xy.
  • the support plates 36, 37 have, at the upper part of their internal faces 36d, 37d, respective supports 43, 44 whose upper surfaces are flush with the horizontal bearing faces 36a, 37a and which are constituted by tongues horizontal extending transversely, that is to say parallel to the xy axis.
  • the support tabs 43 of the support plate 36 extend in the direction of the other support plate 37 and conversely the support tabs 44 of this support plate 37 extend in the direction of the other support plate 36.
  • slots in which these support tongues 43, 44 can engage namely slots 45 formed in the upper part of the internal face 36d of the support plate 36 and which open into the upper support surface 36a, and slots 46 formed in the upper part of the internal face 37d of the support plate 37 and which open into the upper support surface 37a.
  • the two flanges 32, 33 have, on their facing internal faces, circular grooves 47 which are centered on the axis of rotation xy of the two flanges.
  • the shim 48 has a vertical core 49 of small thickness, intended to come be housed between the two support plates 36, 37 and which is connected, at its upper part, to a horizontal base 51 of square or rectangular section which is in turn extended upwards by a vertical arm 52.
  • the upper part of the 'core 49 and the base 51 have a cutout 53 of suitable shape for engaging the intermediate wedge 48 on the threaded rod 11, when this wedge is used.
  • slots 54 are provided in the upper part of the core 49 just below the base 51, to allow engagement, in these slots, of the support tabs 43, 44 carried by the support plates 36, 37.
  • the positions of the slots 54 and their number correspond respectively to those of the support tabs 43, 44.
  • the arm 52 also has a vertical opening 55 in which a bolt 56 can slide to ensure the locking of a stop 57 constituted by a small square.
  • the light 56 has two parts of different width, namely a part 56a of relatively large width in which the head of the bolt 56 slides and a narrower part 56b in which the rod of this bolt slides.
  • FIG. 10 illustrates the use of the intermediate shim 48 for the bevel cut of a bar 58 of width a less than 2x.
  • the intermediate shim 48 is mounted on one of the support plates, for example the support plate 37.
  • the intermediate shim 48 comes to be pressed against the internal face 37d of this support plate 37, the support tabs 44 of this support plate then engaging in the slots 54 of the core 49 of the intermediate wedge.
  • the intermediate wedge can be held by a stud 58 integral with the core 49 and perpendicular thereto, this stud coming to forcely engage in a hole 59 drilled in the lower part of the support plate 37, parallel to the xy axis.
  • the base 51 of this wedge comes to bear on the upper horizontal surface 37a of the support plate 37 and the clamping of the part 58 is then carried out between the opposite flange 32 and the vertical face opposite the base 51.
  • FIG. 12 illustrates the use of the intermediate shim 48 for the bevel cut of an angle molding 31.
  • this molding 31 is kept inclined between the upper bearing surface 37a and the support tongues 44 of the support plate 37 and the stop 57 of the intermediate shim 48 which is then pressed against the internal face 36d of the opposite support plate 36.
  • the upper stop 57 is locked in the appropriate position corresponding to the dimensions and to the shape of the molding angle 1 to be cut.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
EP19840400339 1983-02-17 1984-02-17 Vorrichtung zum Schrägschneiden eines Werkstücks Expired EP0119890B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400339T ATE25027T1 (de) 1983-02-17 1984-02-17 Vorrichtung zum schraegschneiden eines werkstuecks.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8302548A FR2541172A1 (fr) 1983-02-17 1983-02-17 Appareil pour la coupe en biseau d'une piece
FR8302548 1983-02-17
FR8400148 1984-01-06
FR8400148A FR2557827B2 (fr) 1984-01-06 1984-01-06 Appareil pour la coupe en biseau d'une piece

Publications (2)

Publication Number Publication Date
EP0119890A1 true EP0119890A1 (de) 1984-09-26
EP0119890B1 EP0119890B1 (de) 1987-01-21

Family

ID=26223289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840400339 Expired EP0119890B1 (de) 1983-02-17 1984-02-17 Vorrichtung zum Schrägschneiden eines Werkstücks

Country Status (2)

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EP (1) EP0119890B1 (de)
DE (1) DE3462097D1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579923A1 (en) * 1985-04-05 1986-10-10 Guiu Claude Guide slit for apparatus for cutting a bevel in a component
FR2618364A1 (fr) * 1987-07-21 1989-01-27 Charlot Pierre Appareil formant gabarit de decoupe pour profile destine a etre mis en forme par pliage
US4945648A (en) * 1988-02-08 1990-08-07 Isover Saint-Gobain Mitering gauge
GB2241196A (en) * 1989-10-27 1991-08-28 Turco Mario Lo Workpiece cutting guide
US5464184A (en) * 1992-08-28 1995-11-07 Black & Decker Inc. Saw blade mounting apparatus

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1855945A (en) * 1930-03-07 1932-04-26 Denyer Walter Gauge for cutting timber
US2598979A (en) * 1950-01-17 1952-06-03 Bertram C Denney Miter gauge
US2705029A (en) * 1949-04-26 1955-03-29 Zophel Emil Adjustable layout and mitering tool
US3397722A (en) * 1965-10-22 1968-08-20 Albert E. Long Miter box
US3767183A (en) * 1971-10-18 1973-10-23 Universal Clamp Corp Clamp having miter jaws
US3866897A (en) * 1974-01-14 1975-02-18 Jr Raymond Stephen Whalen Combined vice and saw guide
US4052046A (en) * 1976-05-27 1977-10-04 James L. Taylor Mfg. Co. Jaw adapter for a clamp
EP0032476A2 (de) * 1980-01-10 1981-07-22 Société DOLEX (SARL.) Schraubstock mit verschiedenen maximalen Öffnungskapazitäten und mit verschiedenen Spannwirkungen
DE2951078C1 (de) * 1979-12-19 1982-07-15 Franziskus Gerhardus Denekamp Segerink Gehrungslade

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1855945A (en) * 1930-03-07 1932-04-26 Denyer Walter Gauge for cutting timber
US2705029A (en) * 1949-04-26 1955-03-29 Zophel Emil Adjustable layout and mitering tool
US2598979A (en) * 1950-01-17 1952-06-03 Bertram C Denney Miter gauge
US3397722A (en) * 1965-10-22 1968-08-20 Albert E. Long Miter box
US3767183A (en) * 1971-10-18 1973-10-23 Universal Clamp Corp Clamp having miter jaws
US3866897A (en) * 1974-01-14 1975-02-18 Jr Raymond Stephen Whalen Combined vice and saw guide
US4052046A (en) * 1976-05-27 1977-10-04 James L. Taylor Mfg. Co. Jaw adapter for a clamp
DE2951078C1 (de) * 1979-12-19 1982-07-15 Franziskus Gerhardus Denekamp Segerink Gehrungslade
EP0032476A2 (de) * 1980-01-10 1981-07-22 Société DOLEX (SARL.) Schraubstock mit verschiedenen maximalen Öffnungskapazitäten und mit verschiedenen Spannwirkungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579923A1 (en) * 1985-04-05 1986-10-10 Guiu Claude Guide slit for apparatus for cutting a bevel in a component
FR2618364A1 (fr) * 1987-07-21 1989-01-27 Charlot Pierre Appareil formant gabarit de decoupe pour profile destine a etre mis en forme par pliage
US4945648A (en) * 1988-02-08 1990-08-07 Isover Saint-Gobain Mitering gauge
GB2241196A (en) * 1989-10-27 1991-08-28 Turco Mario Lo Workpiece cutting guide
US5464184A (en) * 1992-08-28 1995-11-07 Black & Decker Inc. Saw blade mounting apparatus

Also Published As

Publication number Publication date
EP0119890B1 (de) 1987-01-21
DE3462097D1 (en) 1987-02-26

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