EP3278940B1 - Dispositif a utiliser pour des constructions seches - Google Patents

Dispositif a utiliser pour des constructions seches Download PDF

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Publication number
EP3278940B1
EP3278940B1 EP16182778.7A EP16182778A EP3278940B1 EP 3278940 B1 EP3278940 B1 EP 3278940B1 EP 16182778 A EP16182778 A EP 16182778A EP 3278940 B1 EP3278940 B1 EP 3278940B1
Authority
EP
European Patent Office
Prior art keywords
blade
guide rail
carriage
plasterboard
working position
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
EP16182778.7A
Other languages
German (de)
English (en)
Other versions
EP3278940A1 (fr
Inventor
Christopher Moog
Andreas Donner
Winfried Ebert
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.)
Wolfcraft GmbH
Original Assignee
Wolfcraft 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 Wolfcraft GmbH filed Critical Wolfcraft GmbH
Priority to EP16182778.7A priority Critical patent/EP3278940B1/fr
Priority to PL17177551T priority patent/PL3278941T3/pl
Priority to EP17177551.3A priority patent/EP3278941B1/fr
Publication of EP3278940A1 publication Critical patent/EP3278940A1/fr
Application granted granted Critical
Publication of EP3278940B1 publication Critical patent/EP3278940B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/06—Arrangements for guiding hand cutting tools
    • 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
    • B27G17/00—Manually-operated tools
    • B27G17/02—Hand planes
    • B27G17/025—Hand planes for forming profiles on wood; for trimming or chamfering edges

Definitions

  • the invention relates to a device for dividing a plasterboard plate each having a cardboard layer on its two broad sides.
  • the invention also relates to a method for dividing a plasterboard.
  • the WO 2012/020330 A1 describes a device for dividing a plasterboard.
  • a slide can be moved on a guide rail which has a guide profile.
  • the carriage carries a blade carrier which has a blade which, by pivoting the blade carrier from a rest position in which the blade does not engage the surface of the workpiece, can be brought into a working position in which a corner of the blade engages in the surface of the workpiece .
  • a known device for fixing a guide rail on the surface of a workpiece has the form of a clamp, wherein one leg of the clamp can be inserted into a profile groove. The pressure screw of the clamp is clamped against the back of the workpiece from below.
  • a device for producing a chamfer on a plasterboard describes the DE 196 29 202 C2 .
  • the device described there has the shape of a plane.
  • the planer has a base body that carries two blades one behind the other in the cutting direction.
  • the underside of the plane forms a support flank from which webs project at the two opposite ends, which form a contact flank for contacting a narrow side of the workpiece.
  • the blade arrangement is located in the space between the two contact flanks, a chip exit opening being formed in each case in front of a cutting edge.
  • a device for generating chamfers is also in the DE 87 03 786 described.
  • the FR 2.120.206 describes a dividing device with two blades arranged one behind the other in the cutting direction.
  • the US 2006/0201000 A1 describes a device for cutting workpieces with two blades, which can optionally protrude from mutually pointing ends of a blade carrier.
  • the invention has for its object to further develop a method and an apparatus for cutting plasterboard advantageously.
  • a guide rail is placed on a broad side of the plasterboard provided with a cardboard layer.
  • a contact surface of the guide rail comes in flat contact with the broad side.
  • the top of the guide rail which then faces upward, has a guide profile, for example a groove or a projection.
  • the guide profile extends in the machining direction.
  • a slide is provided which is displaceable along the guide profile with respect to the guide rail. It has a counter profile matching the guide profile, for example a groove or a projection engaging in a guide groove.
  • the carriage has a first blade carrier. This carries a blade that goes from a rest position to a working position is feasible.
  • the blade carrier can be brought from the rest position into a working position.
  • a working section of the blade protrudes from the underside of the base body carrying the blade carrier in such a way that moving the carriage along the guide rail leads to a severing of the cardboard layer.
  • a corner of the blade only needs to penetrate slightly into the surface of the workpiece in order to produce an incision that at least partially penetrates the cardboard layer.
  • the plasterboard can then be bent around this incision.
  • a kink forms on the cardboard layer opposite the divided cardboard layer.
  • a fracture edge is formed through the gypsum core of the gypsum board, which extends along the incision.
  • the following and / or advantageous properties are the following: a second blade is provided which can also be brought from a rest position into a working position.
  • the second blade is held by a second blade carrier.
  • the second blade carrier can preferably be pivoted about a second pivot axis.
  • the first blade carrier and the second blade carrier can be moved independently of one another from the rest position to the working position and back.
  • a displacement of the slide causes the cardboard layer pointing away from the guide rail to be severed along the broken edge. This then results in a complete separation of the broken piece from the plasterboard.
  • the cutting edges of the two blades point in opposite directions, so that when the slide moves along the guide rail, the cardboard layer pointing upwards towards the guide rail is severed and after breaking through the gypsum core of the gypsum plasterboard panel in one movement in the opposite direction the second blade, the cardboard layer pointing away from the guide rail severed.
  • the plasterboard is thus cut to length in three successive processing steps, with the second blade carrier taking its rest position in the first processing step and the first blade carrier being brought into the working position. In this working position, the slide is moved in a first direction along the guide rail.
  • the core of the plasterboard is broken, so that the broken piece takes up an angle to the plate and is only connected to the plasterboard with the cardboard layer pointing away from the guide rail.
  • the second blade carrier is brought from its rest position into the working position.
  • the first blade carrier takes its rest position.
  • the other plasterboard layer is severed at a kink.
  • the two blade carriers can each be assigned to the slide or to a base body so as to be pivotable about a pivot axis.
  • the two swivel axes can run parallel to each other. In particular, it is provided that the swivel axes run perpendicular to the surface normal of the broad side or to the contact surface of the guide rail.
  • the pivot axes also run perpendicular to the direction of extension of the guide profile.
  • the first blade carrier can have a handle.
  • the handle can have a foot.
  • the foot can lie in a recess in the base body and can be pivoted there about the first pivot axis.
  • a spring element can be provided which urges the first blade carrier into its rest position.
  • the blade carrier can have a blade holder.
  • This blade holder can be slidably arranged in a handle cavity.
  • the handle cavity has a shaft in which the blade holder is inserted.
  • the foot can have a base area into which the cavity opens. The blade can be moved out of the base area through this base surface opening. This is done by moving the blade holder relative to the handle.
  • the handle can be formed by two handle shells.
  • Locking means can be provided be in order to fix the blade holder in different displacement positions with respect to the handle. This allows the depth of cut to be adjusted.
  • the blade holder can also be moved out of the shaft of the handle to such an extent that the blade can be replaced. It is preferably a trapezoidal blade, which is connected to the blade holder in a form-fitting manner against a contact surface of the blade holder. A pointed corner of the first blade can protrude from the base of the foot. In the use position, the handle preferably protrudes upward from the basic carrier. If the handle is moved in the cutting direction of the first blade, the torque exerted on the handle causes the first blade carrier to pivot into the working position.
  • the second blade can be carried by a blade holder, which can be pivoted through 90 °.
  • the second blade preferably has a 30 ° to 60 °, preferably a 30 ° to 60 °, inclination to the broad side surface or to the contact surface of the rail. It is preferably a 45 ° angular position.
  • the blade can be a blade with a hook-shaped cutting edge.
  • the blade is arranged on the base body in such a way that the hook of the hook-shaped cutting edge in the working position of the second blade lies perpendicularly below the path of movement of the first blade in the first cut, so that the second cardboard layer can be severed with the hook-shaped second blade in the second cut.
  • the second blade thus has a section that crosses an imaginary plane that runs perpendicular to the contact surface of the guide rail, this plane running through the cutting line generated by the first blade or through the cutting edge of the first blade. In their rest position the second blade in a niche of the basic body.
  • the plasterboard to be cut is in a horizontal plane, so that the guide rail can be placed on the upward-facing broad side surface of the plasterboard.
  • a handle then protrudes from the body.
  • This handle is pivoted on the first cut. As a result, the blade moves from its rest position to the working position. If the handle is released, the spring described above automatically returns the handle to a rest position of the first blade.
  • a rotary knob protrudes from one side surface of the base body. This knob is the second blade holder that has a blade carrier that has an inclined contact surface for the second blade. By rotating the pivot axis, the second blade is brought from its rest position, in which the blade lies in a recess of the base body, to its working position, in which it crosses an imaginary cutting plane of the first blade at an oblique angle.
  • fastening means can be provided, in particular on the base body, with which a fixing device, as described below, can be fastened to the device.
  • the base body has a pocket in which one or more fastening devices, in particular in the form of fastening tongues, are arranged, with which a fixing element can be detachably fastened to the device.
  • the fixing element can be inserted into a groove of a guide rail and has mandrels which press into the surface of the workpiece when the guide rail is placed on a workpiece.
  • the pocket can be designed in such a way that two fixing elements can lie one behind the other in the direction of extension. Each fixing element is fastened in the pocket with a pair of locking tongues.
  • the Figures 1 to 14 show an embodiment of the invention, which is a device for dividing a plasterboard 6.
  • a gypsum plasterboard has a core of gypsum and two broad sides 7, 7 'pointing away from one another, each of which is coated with a layer of cardboard 8, 8' which gives the gypsum plasterboard 6 stability.
  • an incision 9' is first made in a first broad side 7.
  • the gypsum core of the gypsum board 6 is broken along this section line 9 ', so that a broken edge 9 is formed and the broken-off part is only connected to the rest of the board via the now bent second board layer 8'.
  • the complete division takes place by means of a second cut, in that the second cardboard layer 8 'is divided along an articulation angle.
  • the in the Figures 1 to 14 shown device allows a simplified implementation of this method.
  • a guide rail 1 is provided, which can be an aluminum profile body.
  • the guide rail 1 forms a guide profile 2. It is a projection 5 that extends along the guide rail 1.
  • the projection 5 forms a guide groove 3 on its rear side, namely the contact surface of the guide rail 1.
  • the guide groove 3 is an undercut groove 3, the undercuts being formed by projections 5 which protrude into the interior of the groove in the region of the mouth of the groove 3.
  • the guide profile 2 forms a further projection 4 which projects laterally from the guide profile 2.
  • a base body of the dividing device is referred to below as a carriage 10.
  • the carriage 10 has a guide recess 23 into which the guide rib formed by the guide profile 2 projects.
  • the guide recess 23 has a plurality of projections 36 which can engage in the space between the projection 4 and the rail body of the guide rail 1. The carriage 10 is thus positively connected to the guide profile 2 and displaceable along the guide profile 2.
  • the carriage 10 forms a base body 22 which has the guide recess 23 and a recess 29.
  • a foot 30 of a handle which consists of two handle shells 13, 14.
  • the foot 30 is pivotally mounted within the recess 29 by means of a pivot axis 18.
  • the pivot axis 18 is located on a first side of the foot 30, which forms a short lever arm.
  • a blade holder 12 is located within the handle 13, 14.
  • the blade holder 12 has a contact surface against which a trapezoidal blade 11 bears.
  • a corner 11 "of the cutting edge 11 'of the blade 11 projects beyond a lower end of the blade holder 12.
  • the upper end of the blade holder 12 has locking projections 16 which can engage in locking recesses 17 of the handle shells 13, 14.
  • the locking projections 16 can emerge from the locking niches 17, so that the blade holder 12 within the grips 13, 14 of the in the Figure 6 shown custody of the blade 11 in the in Figure 7 shown changing position of the blade 11 can be brought. In this position, the section of the blade holder 12 carrying the blade 11 projects substantially completely out of the underside 20 of the foot 30.
  • the blade holder 12 is arranged in the channel 21 formed by the handle scales 13, 14 so as to be longitudinally displaceable and fixable with the latching means 16, 17 in such a way that in an operating position such as that shown in FIG Figure 9 shows, a corner 11 "protrudes from the underside 20 of the foot 30.
  • the handle 13, 14 takes its in the Figure 10 shown rest position, the corner 11 "does not protrude beyond the underside of the base body 22, but is located completely within the recess 29.
  • the handle 13, 14 By applying a torque to the handle 13, 14, the handle 13, 14 can be pivoted about the pivot axis 18. As a result, the leg spring 19 is tensioned.
  • the stop shoulder 32 moves away from the stop 31 and the corner 11 ′′ of the blade 11 protrudes under the underside of the base body 22, so that the cutting edge 11 ′ creates an incision 9 ′ in the cardboard layer 8 when the slide 11 is displaced longitudinally , 14 released again, then the then relaxing spring 19 returns the blade carrier 12 formed by the handle 13, 14 to the rest position.
  • a first incision 9 ' is made in an upward facing cardboard layer 8 of a plasterboard 6, in which the cardboard layer 8 lying on top is completely severed.
  • the spring 19 has such a spring force that when the handle arrangement is acted upon, the handle 13, 14 pivots, so that the cutting edge 11 'cuts an incision 9' into the cardboard layer 8.
  • the core of the gypsum plasterboard 6 is then broken, so that a section 6 hangs down vertically from the rest of the board located in the horizontal plane, as is the case Figure 11 shows.
  • a second blade 25 is provided for severing the downward-facing second cardboard layer 8 'in the region of the crease formed.
  • the second blade 25 is arranged inclined relative to the base body 22 in such a way that its cutting edge 25 'in the working position of the second blade 25 is located perpendicularly below a line through the first blade 11 in the cutting direction and is thus able to be at a 45 ° - Angle the cardboard layer 8 '.
  • the slide is moved in the opposite direction. This is also done by introducing a force into the handle, which does not then pivot, however, since the stop shoulder 32 bears against the stop 31.
  • the second blade 25 is carried by a second blade carrier 24, 26.
  • a blade holder 24 has a contact surface 35 which has a surface normal which is inclined by 45 ° to a pivot axis 27, with which the blade holder 24 can be pivoted by 90 ° relative to the base body 22.
  • the pivot axis 27, like the pivot axis 18, lies in a horizontal plane in the normal position of use of the device and extends perpendicular to the direction of extension of the guide profile 2 or to the direction of extension of the guide recess 23, that is to say the direction of movement of the slide 10.
  • the second blade holder 24 is overlaid by a cap 26, which can also perform a holding function in order to hold the blade 25 on the contact surface 35.
  • the blade holder 24 is inserted in a bearing recess 33 on a side wall of the slide 10.
  • An axle journal 34 protrudes from a bottom surface of the bearing recess 33 and protrudes into a bearing cavity in the blade holder 24.
  • the pivot axis 27 is inserted in a bore in the axle journal 34.
  • the blade 25 is positively attached to the blade holder 24.
  • fastening ribs of the blade holder 24 protrude into fastening niches of the blade 25 designed as a double hook blade.
  • the cutting edge 25 'of the blade 25 has an arch shape. The hook thus formed makes the separating cut through the cardboard layer 8 '.
  • the blades 11, 25 and the axes 18, 27 and the spring 19 are made of plastic.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (13)

  1. Procédé pour diviser une plaque de plâtre (6) comportant une couche de carton (8, 8') sur chacune de ses deux faces larges (7, 7'), dans lequel un rail de guidage (1) comportant un profilé de guidage (2) est placé sur une face large (7) de la plaque de plâtre (6) et dans une première étape, par le déplacement d'un chariot (10) portant une première lame (11) avec un premier porte-lame (12, 13, 14), le long du profil de guidage (2) avec le premier porte-lame (12, 13, 14) amené d'une première position de repos dans une première position de travail, la couche de carton (8) tournée vers le rail de guidage (1) est coupée lors du déplacement du chariot (10), et ensuite, dans une deuxième étape, la plaque de plâtre (6) est rompue autour d'une arête de rupture (9) le long de la couche de carton (8') tournée à l'opposé du rail de guidage (1), caractérisé en ce que dans une troisième étape dans laquelle le premier porte-lame (12, 13, 14) prend la première position de repos, une deuxième lame (25), portée par un deuxième porte-lame (24, 26) du chariot (10) lequel deuxième porte-lame (24, 26) prend une deuxième position de repos pendant la première étape, est amenée de la deuxième position de repos dans une deuxième position de travail et, par un déplacement vers l'arrière du chariot (10) le long du profil de guidage (2), la couche de carton (8') tournée à l'opposé du rail de guidage (1) est coupée le long de l'arête de rupture (9).
  2. Dispositif pour la mise en œuvre du procédé selon la revendication 1, avec un rail de guidage (1) pouvant être placé avec une surface d'appui sur la face large (7) de la plaque de plâtre (6) et présentant un profil de guidage (2), et avec un chariot (10) pouvant être déplacé le long du profil de guidage (2), qui porte une première lame (11) pouvant être amenée d'une première position de repos à une première position de travail qui, lors du déplacement du chariot (10), provoque une coupe de la couche de carton (8) tournée vers le rail de guidage (1) de sorte que la plaque de plâtre (6) peut être cassée autour d'un bord de rupture (9) le long de la couche de carton (8') tournée à l'opposé du rail de guidage (1), et avec une deuxième lame (25) qui peut être amenée d'une deuxième position de repos dans une deuxième position de travail, caractérisé en ce que la deuxième lame (25) est supportée par un deuxième porte-lame (24, 26) et a dans la deuxième position de travail une inclinaison par rapport à la surface d'appui du rail telle qu'une partie de la deuxième lame (25) croise un plan imaginaire passant par la ligne de coupe produite par la première lame et perpendiculaire à la surface d'appui.
  3. Dispositif selon la revendication 2, caractérisé en ce que la première lame (11) est portée par un premier porte-lame (12, 13, 14) qui est associé à un corps de base (22) du chariot (10) de manière à pouvoir pivoter autour d'un premier axe de pivotement (18), dans lequel il est prévu en particulier que l'axe de pivotement (18) s'étende perpendiculairement à la normale à la surface de la face large (7) ou à une surface d'appui du rail de guidage (1) et perpendiculairement à la direction d'extension du profilé de guidage (2).
  4. Dispositif selon l'une des revendications 2 ou 3, caractérisé par une poignée (13, 14) portant la première lame (11) et comportant un pied (30) qui est agencé dans un évidement (29) du chariot (10) ou du corps de base (22), dans lequel il est prévu en particulier que le pied (30) puisse pivoter autour de l'axe de pivotement (18).
  5. Dispositif selon l'une des revendications 3 ou 4, caractérisé en ce que le premier porte-lame (12, 13, 14) est maintenu dans la première position de repos par un ressort (19).
  6. Dispositif selon l'une des revendications 3, 4 ou 5, caractérisé par un support de lame (12) associé au premier porte-lame (12, 13, 14), qui est agencé de manière déplaçable entre deux coquilles de poignée (13, 14) pour remplacer la première lame (11) ou pour régler la profondeur de coupe.
  7. Dispositif selon l'une des revendications 5 ou 6, caractérisé en ce que dans la première position de travail, la première lame (11) ne dépasse d'un côté inférieur (20) du pied (30) que par un coin en pointe (11").
  8. Dispositif selon l'une des revendications 3 à 7, caractérisé en ce que le deuxième porte-lame (24, 26) est associé au corps de base (22) de manière à pouvoir pivoter autour d'un deuxième axe de pivotement (27).
  9. Dispositif selon la revendication 8, caractérisé en ce que la deuxième lame (25) s'étend dans la deuxième position de travail selon un angle d'inclinaison compris entre 30° et 60°, de préférence 45°, par rapport à la face large (7) ou à la surface d'appui du rail de guidage (1) et en ce qu'une partie du tranchant (25') de la deuxième lame (25) coupe un plan imaginaire s'étendant perpendiculairement à la surface d'appui du rail de guidage (1) et qui passe par la ligne de coupe (9') produite par la première lame (11).
  10. Dispositif selon l'une des revendications 8 ou 9, caractérisé en ce que le deuxième axe de pivotement (27) s'étend perpendiculairement à la normale à la surface de la face large (7) ou à la surface d'appui du rail de guidage (1) et perpendiculairement à la direction d'extension du profil de guidage (2).
  11. Dispositif selon la revendication 10, caractérisé en ce que la deuxième lame (25) repose sur une surface d'appui (35) qui est inclinée selon un angle de 30° à 60°, de préférence 45°, par rapport au deuxième axe de pivotement (27).
  12. Dispositif selon l'une des revendications 2 à 11, caractérisé en ce que la deuxième lame (25) présente un tranchant en forme de crochet (25').
  13. Dispositif selon l'une des revendications 3 à 12, caractérisé en ce que dans la deuxième position de repos, le tranchant (25') se trouve dans une niche (28) du corps de base (22).
EP16182778.7A 2016-08-04 2016-08-04 Dispositif a utiliser pour des constructions seches Active EP3278940B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16182778.7A EP3278940B1 (fr) 2016-08-04 2016-08-04 Dispositif a utiliser pour des constructions seches
PL17177551T PL3278941T3 (pl) 2016-08-04 2016-08-04 Przyrząd do montażu na sucho płyt gipsowo-kartonowych
EP17177551.3A EP3278941B1 (fr) 2016-08-04 2016-08-04 Dispositif à utiliser pour des constructions sèches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16182778.7A EP3278940B1 (fr) 2016-08-04 2016-08-04 Dispositif a utiliser pour des constructions seches

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP17177551.3A Division-Into EP3278941B1 (fr) 2016-08-04 2016-08-04 Dispositif à utiliser pour des constructions sèches
EP17177551.3A Division EP3278941B1 (fr) 2016-08-04 2016-08-04 Dispositif à utiliser pour des constructions sèches

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EP3278940A1 EP3278940A1 (fr) 2018-02-07
EP3278940B1 true EP3278940B1 (fr) 2020-07-29

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EP17177551.3A Active EP3278941B1 (fr) 2016-08-04 2016-08-04 Dispositif à utiliser pour des constructions sèches

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Publication number Publication date
EP3278940A1 (fr) 2018-02-07
PL3278941T3 (pl) 2020-03-31
EP3278941A1 (fr) 2018-02-07
EP3278941B1 (fr) 2019-09-25

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