EP1048423B9 - Verfahren zur Profilierung von Holzleisten für Parkett und Ausrichtungsmaschine zur Verwendung in solch einem Verfahren - Google Patents

Verfahren zur Profilierung von Holzleisten für Parkett und Ausrichtungsmaschine zur Verwendung in solch einem Verfahren Download PDF

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Publication number
EP1048423B9
EP1048423B9 EP00108072A EP00108072A EP1048423B9 EP 1048423 B9 EP1048423 B9 EP 1048423B9 EP 00108072 A EP00108072 A EP 00108072A EP 00108072 A EP00108072 A EP 00108072A EP 1048423 B9 EP1048423 B9 EP 1048423B9
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EP
European Patent Office
Prior art keywords
lath
chain
laths
engravings
case
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 - Lifetime
Application number
EP00108072A
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English (en)
French (fr)
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EP1048423B1 (de
EP1048423A2 (de
EP1048423A3 (de
Inventor
Pier Luigi Franchin
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.)
A COSTA SpA
Original Assignee
A COSTA SpA
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
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Publication of EP1048423A2 publication Critical patent/EP1048423A2/de
Publication of EP1048423A3 publication Critical patent/EP1048423A3/de
Publication of EP1048423B1 publication Critical patent/EP1048423B1/de
Application granted granted Critical
Publication of EP1048423B9 publication Critical patent/EP1048423B9/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
    • 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
    • B27F1/02—Making tongues or grooves, of indefinite length
    • B27F1/06—Making tongues or grooves, of indefinite length simultaneously along opposite edges of a board
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove

Definitions

  • the invention relates to a method of lath profiling used for making parquets and to a squaring machine which makes such a method for profiling laths.
  • suitable squaring machines make on one lateral side of the laths a male profile joint and on the opposite lateral side a female profile joint.
  • the joint profiles are connected one with each other and the floor surface is overlaid through a plurality of laths alongsided and connected one with each other joining the male element of each one in the female element of the adjacent lath.
  • the squaring machines used (representing the closest prior art disclosing the preamble of method claim 1 and the preamble of device claim 6) comprise a frame provided with a plurality of operating units, each one having a rotating tool with a profile suitable for making in the lath the desired profile.
  • the squaring machine is provided with a chain on which the working laths are head - tail aligned one after each other.
  • the chain advances continuously along the longitudinal direction of the frame and the laths are hold adherent through suitable pressure means generally made by an higher track.
  • the laths are worked in correspondence with the ribs by the operating units tools located two by two one opposed with another and operate at the same time on both ribs of the laths themselves.
  • the lath advancement chains are composed by a plurality of grids one pivoted after another in order to make a closed ring which is advanced along the longitudinal direction of the frame through gears, being at least one of them motorized, which engage the grids.
  • the chains are provided with slipping pads, which lean on sliding guide integral with the frame and internal to a protection case.
  • the case width is lower than the finished width of the lath which is easily manufactured in correspondence with the ribs of the shaped tools applied to the operating heads.
  • the parts of the lath to be manufactured project with respect to the case containing the chain and therefore they can be easily reached by the operating heads tools, which operate rotating on parallel planes or perpendicular with respect to the working surfaces.
  • the chains used are slipping chains of the known type, built by the same applicant of the present patent.
  • a disadvantage of the slipping chains is the limited speed of advance they permit, varying between 40 and 45 m/minute.
  • Squaring machines which have advancing speeds reaching also 60/80 m/minute using slipping chains.
  • the present invention is intended to overcome such disadvantages and limitations.
  • operating heads forming longitudinal engravings on both faces and mounted on slanting saddles suitable for advancing the tool slantingly to said lath, are present in the squaring machine.
  • the chain supporting the laths is a rolling chain and is provided with a plurality of supporting plates on which they rest the working laths.
  • Each plate has its width both lower than the case width enclosing the chain and than the distance between the longitudinal engravings on each lath.
  • the plate height is sufficient to define on each side a reentering area with respect to the case housing the chain, which is delimited on the bottom of the case itself, sideways from the plate side and higher up from the lower surface of the working lath.
  • Such a reentering area allows the entering of the rotating tool slanting to the lath lower surface, on which the longitudinal engravings have to be made.
  • the raising of the sliding plane of the laths with respect to the case plane housing the chain through a plate having a width lower with respect to the distance between the engravings to be made on the lath, together with the slanting position of the tools allows the manufacturing of the lath lower surface making on it longitudinal engravings, one distant from another of a lower quantity with respect to the case width housing the chain.
  • the squaring machine of the invention As we can see in fig. 1 the squaring machine of the invention, indicated as a whole with 1, realizing the method being also an aim of the invention, comprises a base 2 supporting a plurality of operating heads 3, 4, 5, 6, 7, located one after another.
  • Each couple of operating heads is formed by two opposite operating heads, each one placed on one side of the squaring machine according to the arrangement seen as a title of example in fig. 17, relative to the first couple of operating heads 3, comprising the left 3a and right 3b heads one opposite to another.
  • the operating heads manufacture the laths L, which are advanced along the longitudinal direction of the squaring machine in the sense indicated by the arrow 8 of fig. 1 and 2.
  • a plurality of laths is located one after another, leaning on a chain 9, which is winded as a ring between a back gear 10 and a shaped front slide 11, where the back gear 10 is rotated by a power group, indicated as a whole by 12.
  • the chain 9, as we can see in greater detail in fig. 17, is a rolling chain, being composed by plurality of grids 13 linked one with another and of the type per se known, each one having a transverse pin 14 supported on its ends by rolling bearings 15, 16 leaning on respective tracks 17, 18 belonging to the frame 2 of the squaring machine.
  • the chain 9 is housed on the case 19 belonging to the frame 2 of the squaring machine and each grid 13 of the chain 9 is provided with a supporting plate 20.
  • Each plate 20 has a datum plane 21 preferably made using a material with a high coefficient of friction, on which the lower surface L' of the working laths L rests.
  • a presser 22 holds the laths L adherent to the datum plane 21 and therefore also to the grid 13 of the chain.
  • the profiling method of the laths which are the aim of the invention comprises, with reference to figs. 2 to 16, the following operations:
  • the distance D between the engravings S', S" is lower than the width 24 of the case 19, each engraving being obtained using a rotating tool 3', 3", 4', 4" belonging to one of the operating heads 3a, 3b, 4a, 4b and having the rotating plane 30', 30", 40', 40” slanting with respect to the plane defined by the horizontal plane face L', L" of the lath L.
  • each supporting plate 20 has its width 23 lower than the width 24 of said case 19 and the sides 25 vertically protruding from the case itself in order to define laterally to each lath L a zone Z limited by the lath L, by the side 25 of said plates 20 and by said case 19, suitable for housing the tools 3', 3" making said longitudinal engravings S' on the faces L' of said laths L leaning on the datum planes 21 of said plates 20.
  • finishing tools 7', 7" are finished through finishing tools 7', 7", as we can see in figg. 2 and 13 to 15 obtaining finished profiles M', F'.
  • tool and manufacture profiles made on the lath sides could be of a different type from the description, according to the final product we want to obtain.
  • the plates put on the advance chain of the laths could be of a different form or dimensions according to the working laths, but these must have a width not higher than the distance between the engravings to be made on the lower face of the laths and on the case width.

Claims (8)

  1. Eine Methode zur Profilbearbeitung von Parkettleisten, die auf einer Schleppkette (9) ausgerichtet sind in einem Gehäuse (19) einer Basis (2) einer Abkantmaschine (1), welche mit einer Vielzahl von Arbeitsköpfen versehen ist, folgende Schritte umfassend:
    Einritzen von einem Paar Längseinschnitten über die gesamte Leistenlänge zur Kette hin an wenigstens der ebenen, waagerechten Fläche (L') jeder Leiste (L);
    Fräsen beider Seitenrippen (B', B") jeder Leiste, wobei auf jeder Rippe eine im Wesentlichen ebene und senkrechte Fläche über die gesamte Länge der Leiste gebildet wird;
    Formen dieser Seitenrippen über die gesamte Leistenlänge, wobei an einer der Rippen ein Außenprofil und an der entgegengesetzten Rippe ein Hohlprofil erzeugt wird, wobei jedes Profil aus dem entsprechenden Längseinschnitt erzielt wird;
    dadurch gekennzeichnet, dass der Abstand zwischen den Einschnitten (S', S") geringer ist als die Breite (24) des Gehäuses (19), wobei jeder der beiden Einschnitte durch ein drehendes Werkzeug (3', 3", 4', 4") erzielt wird, das zu einem der Arbeitsköpfe (3a, 3b, 4a, 4b) gehört und bezüglich der durch die wenigstens eine ebene, waagerechte Fläche (L', L") der Leiste (L) definierte Ebene schräg stehende Drehebenen (30', 30", 40', 40") hat.
  2. Methode gemäß Patentanspruch 1), dadurch gekennzeichnet, dass die Einschnitte (S', S") zuerst an der unteren Fläche (L') zur Kette (9) hin und dann an der oberen Fläche (L") aufwärts ausgeführt werden.
  3. Methode gemäß Patentanspruch 2), dadurch gekennzeichnet, dass an jeder Fläche (L', L") der Leiste (L) die Einschnitte (S', S") gleichzeitig und in der Nähe beider Rippen (B', B") der Leiste (L) vorgenommen werden.
  4. Methode gemäß Patentanspruch 1), dadurch gekennzeichnet, dass die Fräsungen zur Erzielung der Oberflächen (I', I") gleichzeitig an beiden Rippen (B', B") der Leiste (L) ausgeführt werden.
  5. Methode gemäß Patentanspruch 1), dadurch gekennzeichnet, dass auf jede der Formarbeiten zur Erzielung des Außenprofils (M) und des Hohlprofils (F) eine Endbearbeitung der Profile folgt.
  6. Abkantmaschine (1), geeignet zur Durchführung der Methode nach Patentanspruch 1), Folgendes umfassend:
    einen Rahmen (2) zum Halt einer Vielzahl von Arbeitsköpfen (3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b), von denen jeder mit einem drehenden Werkzeug (3', 3", 4', 4", 5', 5", 6', 6", 7', 7") zur Fertigung der Leisten (L) ausgerüstet ist;
    ein hinteres Getriebe (10) und einen durch den Rahmen gehaltenen, vorderen geformten Schieber (11), zwischen denen eine geschlossene Rollkette (9) die aufeinander ausgerichtete Leisten (L) trägt;
    Antriebsmittel (12) für den Vorschub der Kette (9), an das hintere Getriebe (10) gekuppelt;
    ein Schutzgehäuse (19), das die durch den Rahmen (2) gehaltene Kette (9) aufnimmt;
    eine Vielzahl an die Kette (9) befestigter Tragplatten (20) mit Bezugsebenen (21), auf welche die Leisten (L) gelegt werden,
    dadurch gekennzeichnet, dass jede der Tragplatten (20) eine Breite (22) aufweist, die kleiner ist als die Breite (24) des Gehäuses (19) und der Seiten (25), die senkrecht aus dem Gehäuse selbst hervorstehen, um seitlich an jeder Leiste (L) eine Zone (Z) zu definieren, die durch die Leisten (L), durch die Seiten der Platten (20) und durch das Gehäuse (19) begrenzt ist, zur Aufnahme der Werkzeuge (3', 3") für die Längseinschnitte (S', S") an den Flächen (L') der auf den Bezugsebenen (21) der Tragplatten (20) liegenden Leisten (L).
  7. Abkantmaschine (1) gemäß Patentanspruch 6), dadurch gekennzeichnet, dass die Kette (9) eine Drehkette ist, die aus einer Vielzahl von Gittern (13) besteht, welche schwenkbar über Bolzen (14) miteinander verbunden sind, wobei jeder Bolzen an jedem Ende mit Rollmitteln (15, 16) gestützt wird, die auf Spuren (17, 18) laufen, welche zum Rahmen (2) der Abkantmaschine (1) gehören.
  8. Abkantmaschine (1) gemäß Patentanspruch 6), dadurch gekennzeichnet, dass die Arbeitsköpfe paarweise einander gegenüberliegend angeordnet sind, wobei sich jeder Arbeitskopf an einer Seite der Abkantmaschine befindet.
EP00108072A 1999-04-29 2000-04-25 Verfahren zur Profilierung von Holzleisten für Parkett und Ausrichtungsmaschine zur Verwendung in solch einem Verfahren Expired - Lifetime EP1048423B9 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999VI000081A IT1307424B1 (it) 1999-04-29 1999-04-29 Metodo per la profilatura di listelli per parquet e macchinasquadratrice atta a realizzare tale metodo.
ITVI990081 1999-04-29

Publications (4)

Publication Number Publication Date
EP1048423A2 EP1048423A2 (de) 2000-11-02
EP1048423A3 EP1048423A3 (de) 2001-09-26
EP1048423B1 EP1048423B1 (de) 2003-09-24
EP1048423B9 true EP1048423B9 (de) 2005-05-04

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Application Number Title Priority Date Filing Date
EP00108072A Expired - Lifetime EP1048423B9 (de) 1999-04-29 2000-04-25 Verfahren zur Profilierung von Holzleisten für Parkett und Ausrichtungsmaschine zur Verwendung in solch einem Verfahren

Country Status (5)

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EP (1) EP1048423B9 (de)
AT (1) ATE250489T1 (de)
DE (1) DE60005431T2 (de)
ES (1) ES2208170T3 (de)
IT (1) IT1307424B1 (de)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8940216B2 (en) 2006-09-15 2015-01-27 Valinge Innovation Ab Device and method for compressing an edge of a building panel and a building panel with compressed edges
US9169654B2 (en) 2009-12-17 2015-10-27 Valinge Innovation Ab Methods and arrangements relating to surface forming of building panels
US9447587B2 (en) 2009-12-17 2016-09-20 Valinge Innovation Ab Methods and arrangements relating to surface forming of building panels
US9538842B2 (en) 2011-05-06 2017-01-10 Valinge Innovation Ab Mechanical locking system for building panels

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Publication number Publication date
ES2208170T3 (es) 2004-06-16
DE60005431D1 (de) 2003-10-30
ATE250489T1 (de) 2003-10-15
ITVI990081A0 (it) 1999-04-29
EP1048423B1 (de) 2003-09-24
ITVI990081A1 (it) 2000-10-29
EP1048423A2 (de) 2000-11-02
DE60005431T2 (de) 2004-07-01
EP1048423A3 (de) 2001-09-26
IT1307424B1 (it) 2001-11-06

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