FR2582565A1 - Precision mitre saw - Google Patents

Precision mitre saw Download PDF

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Publication number
FR2582565A1
FR2582565A1 FR8508297A FR8508297A FR2582565A1 FR 2582565 A1 FR2582565 A1 FR 2582565A1 FR 8508297 A FR8508297 A FR 8508297A FR 8508297 A FR8508297 A FR 8508297A FR 2582565 A1 FR2582565 A1 FR 2582565A1
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FR
France
Prior art keywords
panel
cut
stop
fixed
profiles
Prior art date
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Withdrawn
Application number
FR8508297A
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French (fr)
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Individual
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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 FR8508297A priority Critical patent/FR2582565A1/en
Publication of FR2582565A1 publication Critical patent/FR2582565A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
    • B23D51/12—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
    • B23D51/125—Blade tensioning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/02—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of beds; of guiding arrangements for work-tables or saw carriers; of frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Abstract

The present invention relates to a device making it possible to make a very accurate cut at a fixed angle for all shapes of wood, metal or other materials and particularly framing strips (mouldings). In this case, a cut at 45 DEG is the most frequent. This device includes a rigid plinth 1, guides 4 and 4bis, 5 and 5bis, such that the space lying between them allows a panel 6 to slide freely and without play, whilst remaining perpendicular to the plinth 1. A bought-out (commercially available) saw 7 is mounted on the panel 6. Guides 12 and 12bis, fixed to the plinth, form an angle of 45 DEG , on either side of the plane of the saw-holding panel. The section to be cut will be held against the guide through the use of a wedge 13, itself loaded by a cam 15. The wedge 12 is locked longitudinally by a key 14 penetrating into the plate 1 through a slot 13bis. Finally, a sliding rule equipped with a stop piece is incorporated into the wedge 13.

Description

La présente invention est relative à un dispositif permettant de réaliser une coupe angulaire fixe d'une grande précision de tous les profils en bois , en métal ou autres et notamment des moulures d'encadrement.Dans ce cas l'angle de coupesera de 450 (coupe dit d'onglet
Les dispositifs éxistants sont:
-soit des boites à onglets , réalisées en bois, en matières plastiques ou en métal.Cet outillage trés simple et peu coûte#x, manque de précision angulaire.L'usure des fentes guidant la lame de scie est trés rapide , rendant la coupe totalement imprécise.Enfin le blocage du profil, au moment de la coupe , est soit inéxistant soit difficile à utiliser.The present invention relates to a device making it possible to achieve a fixed angular cut with great precision of all the wooden, metal or other profiles and in particular of the frame moldings. In this case the cutting angle will be 450 ( miter cut
The existing devices are:
- or miter boxes, made of wood, plastic or metal. This tool very simple and inexpensive # x, lack of angular precision. The wear of the slots guiding the saw blade is very fast, making the cut totally imprecise.Finally blocking the profile, at the time of cutting, is either nonexistent or difficult to use.

-soit des ensembles mécaniques complexes d'une grande précision , mais d'un prix trés élevé. - or complex mechanical assemblies of great precision, but of a very high price.

On peut observer que la coupe à 450 est presque exclusivement utilisée .En conséquence l'invention n'a pris en compte que cet angle de coupe . Par contre elle sera consue de telle sorte que la précision soit excellente et que d'autre part la coupe soit parfaitement verticale. We can observe that the 450 cut is almost exclusively used. Consequently the invention only took into account this cutting angle. On the other hand it will be designed so that the precision is excellent and that on the other hand the cut is perfectly vertical.

Les Beys aléas de l'usure seront supprimés. The random Beys of wear will be deleted.

Tous les profils (en bois , en métal ou autres) pourront être tronçonnés. All profiles (wood, metal or other) can be cut.

Dans une réalisation préférentielle,cette scie est entièrement réalisée en bois contreplaqué multiplis de 15mm d'épaisseur,à l'exception de quelques petites pièces métalliques. In a preferred embodiment, this saw is entirely made of plywood plywood 15mm thick, with the exception of a few small metal parts.

Elle emporte un plateau (l)de forme trapézoidale muni de deux traverses(2) et (3) destinées à former avec le plateau (1) un socle trés rigide et parfaitement plan. It carries a tray (l) of trapezoidal shape provided with two crosspieces (2) and (3) intended to form with the tray (1) a very rigid and perfectly flat base.

Deux guides verticaux (4) et (4 bis)sont fixés contre le grand côté du-trapèze.De même 2 guides (5) et (5bis) sont fixés contre le petit coté du trapèze. Two vertical guides (4) and (4a) are fixed against the long side of the trapezium. Likewise 2 guides (5) and (5a) are fixed against the short side of the trapezoid.

L'espace parallèle entre (4) et (4 bis),(5) et (5bis) est parfaitement perpendiculaire au plan du socle d'une part et d'une largeur de 15mm d'autre part.  The parallel space between (4) and (4a), (5) and (5a) is perfectly perpendicular to the plane of the base on the one hand and a width of 15mm on the other.

Une pièce mobile 6 de forme rectangulaire allongée glissera sans effort et sans jeu entre les glissières 4 et 4bis,5 et Sbis.La pièce 6 est échancrée en 6bis et perforée d'un trou oblond 8bis permettant le passage de la main.Nous appellerons la pièce 6 : panneau porte-scie. A movable piece 6 of elongated rectangular shape will slide effortlessly and without play between the slides 4 and 4bis, 5 and Sbis. The piece 6 is indented in 6bis and perforated with an oblong hole 8bis allowing the passage of the hand. We will call it part 6: saw holder panel.

La longueur de l'échancrure est telle qu'elle dégage l'emplaçement d'une lame de scie -à métaux du commerce de 300mm environ 7
La lame de scie 7 est maintenue dans le plan axial de la pièce mobile 6 par l'intermédiaire des pièces métalliques 8 , 9 et 10, (figure 2 )
La pièce 8 est réalisée en fer plat de 14mm de large et de 2mm d'épaisseur.Une de ses extrémités est recourbée et fendue longitudinalement,dans son plan axial,pour reçevoir une lame de scie , bloquée dans cette position de travail par un tourillon 11 s'appuyant sur 8 et passant à travers le trou de la lame. 8 est fixé par deu#x vis dans l'épaisseur de la pièce mobile 6
La pièce 9 est presque identique à la pièce 8 à ceci prés qu'à l'opposé de l'extrémité recourbée 9 est coudée l'équerre et perçue d'un trou.The length of the notch is such that it clears the location of a commercial hacksaw blade of about 300mm 7
The saw blade 7 is held in the axial plane of the moving part 6 by means of the metal parts 8, 9 and 10, (FIG. 2)
Piece 8 is made of flat iron 14mm wide and 2mm thick. One of its ends is bent and slit longitudinally, in its axial plane, to receive a saw blade, locked in this working position by a pin 11 resting on 8 and passing through the hole in the blade. 8 is fixed by two # x screws in the thickness of the moving part 6
The part 9 is almost identical to the part 8 except that opposite the curved end 9 is bent the square and perceived a hole.

La pièce 10 ne comporte que le coude -#
Les pièces 9 et 10 sont reliées entre elles par une vis llbis.Au montage , 10 est vissée sur 6.Par contre 9 ne l'est pas.En serrant la vis 11,on met en traction 8, donc la lame de scie 7.Ce n'est qu'aprés cette mise en traction que 8 est vissée dans I'âme du panneau.Part 10 has only the elbow - #
Parts 9 and 10 are connected to each other by an llbis screw. On assembly, 10 is screwed on 6. On the other hand, 9 is not. By tightening screw 11, we put in tension 8, so the saw blade 7 . It is only after this tensioning that 8 is screwed into the core of the panel.

Le plateau est muni de 2 guides 12 et 12bis,Sixes, dont les directions font exactement 450 de part et d'autre du plan de coupe. The plate is provided with 2 guides 12 and 12bis, Sixes, whose directions are exactly 450 on either side of the cutting plane.

Le profil à découper doit être solidement maintenu contre 12 ou 12bis selon la direction de l'onglet. The profile to be cut must be securely held against 12 or 12bis depending on the direction of the tab.

Pour cela une pièce de serrage 13 s'appliquera contre le profil.Son glissement sera rendu impossible par la présence d'une clavette 14 pénétrant dans une rainure 13bis du plateau 1
Une pression irreversible sera éxerçée sur la pièce 13 par une came 15 munie d'un axe 16 qui en est solidaire.Ce dernier s'engage librement dans l'un des trous 17 du plateau 1 .Cet ensemble de trous 17 est tel que le réglage de la distance de compression entre 12 et 13 est continu. For this a clamping piece 13 will be applied against the profile. Its sliding will be made impossible by the presence of a key 14 penetrating into a groove 13bis of the plate 1
Irreversible pressure will be exerted on the part 13 by a cam 15 provided with an axis 16 which is integral therewith. The latter engages freely in one of the holes 17 of the plate 1. This set of holes 17 is such that the adjustment of the compression distance between 12 and 13 is continuous.

Pour réaliser des encadrements rectangulaires, il est trés important que les deux cotés opposés soient exactement de même longueur.Pour cela, on disposera d'une butée réglable 18 solidaire d'une réglette 19.Cette réglette coulisse dans une rainure de la pièce 13.Lorsque la bonne distance de la butée par rapport au plan de coupe est définie,le blocage de la butée se fera par serrage de la vis 20. To make rectangular frames, it is very important that the two opposite sides are exactly the same length. For this, there will be an adjustable stop 18 secured to a strip 19. This strip slides in a groove in part 13. When the correct distance of the stop relative to the cutting plane is defined, the stop will be blocked by tightening the screw 20.

Si la distance entre la butée 18 et le plan de coupe dépasse la longueur de la pièce 13,on retournera la réglette portebutée de telle sorte que là butée 18 se trouve au delà de 13 mais dans son prolongement. If the distance between the stop 18 and the cutting plane exceeds the length of the part 13, we will return the door stop strip so that the stop 18 is beyond 13 but in its extension.

Le profil de la butée , incliné à 450 ,est évidé à sa base pour que la partie la plus fine de la coupe de l'encadrement soit sauvegardée.En outre , le sommet de l'angle , peu resistant , rendrait le role de la butée problématique. The profile of the stop, inclined at 450, is hollowed out at its base so that the thinnest part of the frame cut is saved. In addition, the top of the angle, not very resistant, would make the role of the problematic stop.

Bien entendu, le même dispositif est situé à droite et à gauche , symétriquement par rapport au plan de coupe.  Of course, the same device is located on the right and on the left, symmetrically with respect to the cutting plane.

Claims (8)

REVENDICATIONS 1.Dispositif destiné à tronçonner des profils en bois , métal ou autres matières , à angle fixe et notamment à 450 ,constitué par un plateau mobile 6 muni d'une lame de scie du commerce 7 ,coulissant entre deux guides parallèles,4 et 4bis,5 et Sbis.Le dit plateau 6 se trouve ainsi constamment perpendiculaire à un socle 1 supportant les profils à tronçonner. 1.Device intended for cutting sections of wood, metal or other materials, at a fixed angle and in particular at 450, consisting of a movable plate 6 provided with a commercial saw blade 7, sliding between two parallel guides, 4 and 4bis , 5 and Sbis. Said plate 6 is thus constantly perpendicular to a base 1 supporting the profiles to be cut. 2.Dispositif selon la revendication 1 caractérisé en ce que la lame de scie 7 est fixée sur un panneau plan 6 avantageusement réalisé en contre-plaqué multiplis et de forme et de rigidité telle que sa planéité soit conservée lorsque la lame 7 est en traction. 2. Device according to claim 1 characterized in that the saw blade 7 is fixed to a flat panel 6 advantageously made of plywood plywood and of form and rigidity such that its flatness is preserved when the blade 7 is in tension. 3.Dispositif selon la revendication 1 caractérisé en ce que la lame de scie est fixée sur le panneau 6 par l'intermédiaire de pièces métalliques spéciales ,permettant de la mettre sous tension mécanique dans le plan axial du panneau. 3. Device according to claim 1 characterized in that the saw blade is fixed to the panel 6 by means of special metal parts, making it possible to put it under mechanical tension in the axial plane of the panel. 4.Dispositif selon l'ensemble des revendications ci-dessus caractérisé en ce que le profil à tronçonner est comprimé contre la pièce 12 par l'intermédiaire d'une pièce mobile 13 dont le glissement longitudinal est rendu impossible par la présence d'une clavette 14 pénètrant dans une rainure 13bis du plateau 1. 4. Device according to all of the above claims characterized in that the sectioning profile is compressed against the part 12 by means of a movable part 13 whose longitudinal sliding is made impossible by the presence of a key 14 penetrating into a groove 13bis of the plate 1. 5.Dispositif selon la revendication 4 caractérisé en ce que une came 15 vient exerçer par rotation une compression irréversible sur la pièce 13. 5. Device according to claim 4 characterized in that a cam 15 exerts by rotation an irreversible compression on the part 13. 6.Dispositif selon la revendication 5 caractérisé en ce que l'axe de la came peut pénétrer dans une série de trous 17 , rendant ainsi possible le serrage de profils de dimensions variées. 6. Device according to claim 5 characterized in that the axis of the cam can penetrate a series of holes 17, thus making possible the tightening of profiles of various dimensions. 7.Dispositif selon revendication 4 caractérisé en ce que l'égalité de longueur de plusieurs tronçons de profils est obtenue par référence à une butée réglable 18 assujétie à une réglette 19 coulissant dans une rainure de la pièce 13 et pouvant être bloquée par une vis 20. 7. Device according to claim 4 characterized in that the equality of length of several sections of profiles is obtained by reference to an adjustable stop 18 subject to a strip 19 sliding in a groove of the part 13 and which can be blocked by a screw 20 . 8.Dispositif selon la revendication 7 caractérisé en ce que la butée a une forme inclinée à 450 avec un évidement à sa base sauvegardant l'intégrité du profil et réant la butée plus précise.  8. Device according to claim 7 characterized in that the stop has a shape inclined to 450 with a recess at its base saving the integrity of the profile and making the stop more precise.
FR8508297A 1985-05-30 1985-05-30 Precision mitre saw Withdrawn FR2582565A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8508297A FR2582565A1 (en) 1985-05-30 1985-05-30 Precision mitre saw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8508297A FR2582565A1 (en) 1985-05-30 1985-05-30 Precision mitre saw

Publications (1)

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FR2582565A1 true FR2582565A1 (en) 1986-12-05

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FR8508297A Withdrawn FR2582565A1 (en) 1985-05-30 1985-05-30 Precision mitre saw

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867262A1 (en) * 1997-03-27 1998-09-30 Daniel L. Poole Clamping system
WO2014135836A1 (en) * 2013-03-05 2014-09-12 Martin Louie Christopher Yanton Morgan A coving mitre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867262A1 (en) * 1997-03-27 1998-09-30 Daniel L. Poole Clamping system
WO2014135836A1 (en) * 2013-03-05 2014-09-12 Martin Louie Christopher Yanton Morgan A coving mitre
GB2526504A (en) * 2013-03-05 2015-11-25 Ronald Owthwait Martin A coving mitre
GB2526504B (en) * 2013-03-05 2020-01-22 Owthwait Martin Ronald A coving mitre

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