EP0077284A1 - Verfahren und Vorrichtung zum Zusammenleimen von zwei Holzflächen - Google Patents

Verfahren und Vorrichtung zum Zusammenleimen von zwei Holzflächen Download PDF

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Publication number
EP0077284A1
EP0077284A1 EP82440032A EP82440032A EP0077284A1 EP 0077284 A1 EP0077284 A1 EP 0077284A1 EP 82440032 A EP82440032 A EP 82440032A EP 82440032 A EP82440032 A EP 82440032A EP 0077284 A1 EP0077284 A1 EP 0077284A1
Authority
EP
European Patent Office
Prior art keywords
grooves
wood
wheel
displacement
compression
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.)
Withdrawn
Application number
EP82440032A
Other languages
English (en)
French (fr)
Inventor
Raymond Burger
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
Publication of EP0077284A1 publication Critical patent/EP0077284A1/de
Withdrawn legal-status Critical Current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
    • B27F1/16—Making finger joints, i.e. joints having tapers in the opposite direction to those of dovetail joints
    • 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
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing

Definitions

  • the invention relates to a new method of bonding and means for applying it, this method having the result of simplifying the current bonding methods and improving the strength qualities of the joint.
  • the first method described has the drawback, on the one hand, of having to keep the two surfaces under pressure until the adhesive hardens, even if this time can be reduced by physical or chemical means.
  • this collage to be perfect, requires great care in the machining of the woods to be assembled, the bonding surface not being greater than the surface of the joint.
  • the object of the present invention is to remedy the drawbacks of current methods which in particular slow down the development of reconstituted wood by lamination and end-to-end assembly.
  • the main idea of the invention starts from the observation that it is relatively easy to densify the wood by compression in the direction perpendicular to the fibers of the wood, and this particularly when it is coniferous wood, essentially concerned.
  • the second idea is inspired by the self-tightening obtained by the assembly of multiple splices.
  • the inventor endeavored to find means making it possible to make splints, not by machining, but by deformation and densification of the fibers. Because, by making these cuts by densification of the fibers, one practically obtains a doubling of the resistance of the wood at the place of the joint.
  • the preferred means for applying the process described is a simple cylindrical "wheel", the surface of which consists of grooves having the shape of the cuts which it is desired to produce.
  • the wheel rotating freely on an axis, is strongly compressed against the surface of the wood to be entered.
  • the wheel or the wood moves by mechanical action perpendicular to the compressive force exerted between the surface of the wood and the wheel, and perpendicular to the axis thereof, the distance between the axis of the wheel and the surface to enter being constant.
  • the single figure illustrates one of the preferred means recommended for the application of the method, given by way of nonlimiting example.
  • the easy means, object of the invention make it possible to improve not only the assembly techniques, but also the bonding joints.
  • the wheel for example, which is easy to implement and easy to make, will have a much longer service life than the very expensive cutting tools currently used.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP82440032A 1981-10-01 1982-09-30 Verfahren und Vorrichtung zum Zusammenleimen von zwei Holzflächen Withdrawn EP0077284A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8118661A FR2513930A1 (fr) 1981-10-01 1981-10-01 Procede et dispositif de collage de deux surfaces de bois entre elles
FR8118661 1981-10-01

Publications (1)

Publication Number Publication Date
EP0077284A1 true EP0077284A1 (de) 1983-04-20

Family

ID=9262717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82440032A Withdrawn EP0077284A1 (de) 1981-10-01 1982-09-30 Verfahren und Vorrichtung zum Zusammenleimen von zwei Holzflächen

Country Status (3)

Country Link
EP (1) EP0077284A1 (de)
DK (1) DK431282A (de)
FR (1) FR2513930A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161371A1 (de) * 1982-11-19 1985-11-21 Raymond Burger Verfahren und Vorrichtung zum Herstellen von Schichtholz durch Selbsthemmung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262723A (en) * 1961-05-29 1966-07-26 Univ Washington Finger jointing of lumber
GB1049757A (en) * 1963-09-26 1966-11-30 Nat Res Dev Improvements in and relating to the jointing of timber and like material
GB1156144A (en) * 1965-11-22 1969-06-25 Nat Res Dev End Jointing of Timber and the like
DE1902973A1 (de) * 1969-01-22 1970-08-20 Erwin Dimter Arbeitsverfahren zur Herstellung von Keilzinken an den Stossflaechen von durch Leimung miteinander zu verbindenden Holzwerkstuecken durch mindestens zwei hintereinander geschaltete Werkzeuge,und Vorrichtung zur Ausfuehrung des Arbeitsverfahrens
DE1528174A1 (de) * 1966-07-05 1971-01-21 Hombak Maschinenfab Kg Verfahren und Werkzeuganordnung zur Herstellung extrem kleiner Keilzinkenverbindungen
GB1279236A (en) * 1968-05-03 1972-06-28 Secretary Trade Ind Brit Improvements in or relating to method and apparatus for die-forming fingers and for finger jointing timber or like material
GB1287561A (en) * 1968-05-03 1972-08-31 Secretary Trade Ind Brit Improvements in or relating to joints between longitudinally relatively inclined pieces of timber or like material
US4248280A (en) * 1978-12-07 1981-02-03 Taylor Keith A Method and machine structure for finger jointing of lumber

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262723A (en) * 1961-05-29 1966-07-26 Univ Washington Finger jointing of lumber
GB1049757A (en) * 1963-09-26 1966-11-30 Nat Res Dev Improvements in and relating to the jointing of timber and like material
GB1156144A (en) * 1965-11-22 1969-06-25 Nat Res Dev End Jointing of Timber and the like
DE1528174A1 (de) * 1966-07-05 1971-01-21 Hombak Maschinenfab Kg Verfahren und Werkzeuganordnung zur Herstellung extrem kleiner Keilzinkenverbindungen
GB1279236A (en) * 1968-05-03 1972-06-28 Secretary Trade Ind Brit Improvements in or relating to method and apparatus for die-forming fingers and for finger jointing timber or like material
GB1287561A (en) * 1968-05-03 1972-08-31 Secretary Trade Ind Brit Improvements in or relating to joints between longitudinally relatively inclined pieces of timber or like material
DE1902973A1 (de) * 1969-01-22 1970-08-20 Erwin Dimter Arbeitsverfahren zur Herstellung von Keilzinken an den Stossflaechen von durch Leimung miteinander zu verbindenden Holzwerkstuecken durch mindestens zwei hintereinander geschaltete Werkzeuge,und Vorrichtung zur Ausfuehrung des Arbeitsverfahrens
US4248280A (en) * 1978-12-07 1981-02-03 Taylor Keith A Method and machine structure for finger jointing of lumber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161371A1 (de) * 1982-11-19 1985-11-21 Raymond Burger Verfahren und Vorrichtung zum Herstellen von Schichtholz durch Selbsthemmung

Also Published As

Publication number Publication date
DK431282A (da) 1983-04-02
FR2513930B1 (de) 1985-03-22
FR2513930A1 (fr) 1983-04-08

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Effective date: 19831022

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Effective date: 19831018

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18D Application deemed to be withdrawn

Effective date: 19850327