(19)
(11) EP 0 261 090 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.04.1990 Bulletin 1990/17

(43) Date of publication A2:
23.03.1988 Bulletin 1988/12

(21) Application number: 87850188.1

(22) Date of filing: 10.06.1987
(51) International Patent Classification (IPC)4: B27B 1/00, B27B 3/00
(84) Designated Contracting States:
AT CH DE FR GB IT LI NL

(30) Priority: 12.06.1986 SE 8602627

(71) Applicant: Raute Wood Processing Machinery Oy
SF-15551 Nastola (FI)

(72) Inventor:
  • Linnér, Bruno
    S-382 00 Nybro (SE)

(74) Representative: Eriksson, Hans Gustaf 
Patentfirman Hans G. Eriksson HB Box 50
640 24 Sköldinge
640 24 Sköldinge (SE)


(56) References cited: : 
   
       


    (54) Method and means related to sawing


    (57) The present invention relates to a method and to means in sawing, preferably in frame sawing.
    The method according to the invention is characterized in that the movement of the saw blade is compulsory guided along slides in such a way that the rearward part of the saw blade - seen in the moving direction thereof - is given a movement towards the work piece while the forward part of the blade at the same time is given a movement away from the work piece, at which the ratio between the movement of the saw blade towards respectively from the work piece and the total movement of the sawblade during one sawing cycle is within the range 7:100 - 1:100.
    The means according to the invention is characterized in at least two pair of slides (3, 4), along which the saw blade (2) is guided during its movement in both sawing directions, the angle between the slides is in the range between 172° and 179°.






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