Global Patent Index - EP 1648668 A1

EP 1648668 A1 20060426 - METHOD AND DEVICE FOR BREAKING DOWN CONICAL TREE TRUNKS

Title (en)

METHOD AND DEVICE FOR BREAKING DOWN CONICAL TREE TRUNKS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM ZERLEGEN VON KONISCHEN BAUMST MMEN

Title (fr)

PROCEDE ET DISPOSITIF POUR COUPE DE TRONCS D'ARBRE CONIQUES

Publication

EP 1648668 A1 20060426 (DE)

Application

EP 04733809 A 20040519

Priority

  • EP 2004005402 W 20040519
  • DE 10335384 A 20030728

Abstract (en)

[origin: WO2005021225A1] The invention relates to a method and a device for breaking down conical tree trunks (42) with a conical angle ( alpha ) into wood products (58, 60). The sides of an optionally pre-treated tree trunk (42) are first laterally levelled (46), and the thus produced model (47) is centred (52), and then split by sawing (56). According to the invention, the sides of the tree trunk (42) are levelled parallel to a surface line (43), whereby a lateral guiding surface (50b) is created for the ensuing centring process, said surface being inclined in relation to the longitudinal axis (45) of the tree trunk (42) by the half conical angle ( alpha /2). The model (47) is sawn in a direction (41) parallel to the lateral guiding surface (50b).

IPC 1-7

B27B 1/00; B27B 31/06

IPC 8 full level

B27B 1/00 (2006.01); B27B 31/06 (2006.01)

CPC (source: EP)

B27B 1/007 (2013.01); B27B 31/06 (2013.01)

Citation (search report)

See references of WO 2005021225A1

Citation (third parties)

Third party :

  • SOEDERHAMN ERIKSSON AB: "Stammzufuehrung mit 3D-Technik, optimale Wertausbeute mit Soederhamn Erikssons Praezisionszufeihrsystem fuer Staemme", SOEDERHAMN ERIKSSON AB BROCHURE, XP003000153
  • "Kompakte Reduzieranlage fuer unsortierten Einschnitt", HOLZ-ZENTRALBLATT, no. 89, 7 November 2003 (2003-11-07), pages 1268, XP003000154
  • LINCK HOLZVERARBEITUNGSTECHNIK GMBH: "Einzugs- und Zentriervorrichtung EV/EVP", PROSPEKTBLATT, pages 1 - 2, XP003000155

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005021225 A1 20050310; AT E348695 T1 20070115; DE 10335384 A1 20050317; DE 502004002394 D1 20070201; EP 1648668 A1 20060426; EP 1648668 B1 20061220; EP 1648668 B8 20070425

DOCDB simple family (application)

EP 2004005402 W 20040519; AT 04733809 T 20040519; DE 10335384 A 20030728; DE 502004002394 T 20040519; EP 04733809 A 20040519