CUTTING CIRCULAR SAW

The invention concerns a Kapp=Kreissäge with a saw blade, which is move backwardable by means of force cylinders from an ineffective position into one from the saw plate outstanding, stored underneath the saw plate in a storing, effective position and. Such saws are well-known and to the cross cutting by massif woods are used. The woods cutting to s fit immovably against a rear attack, while the saw blade implements the Schnittbewegung. From the DE-OS 1503967 also a cutting saw is well-known, with which the stop bar for the workpiece is adjustable after the release from lock screws. Furthermore the way of the Vorschubeinhelt, which the cutting depth and Schnittlänge of the saw blade regulate lo, arranged at a parallel guide, is likewise adjustable. This way is limited thereby to a desired length that at the lock screws for the stop bar attacks are arranged, which cooperate with the control cam of the pneumatic linear feed unit. This arrangement is meaningful if larger series of same workpieces must be worked on. For the change of the cutting depth and/or Schnittlänge each time the Ansehlaglelste must by means of its Feststellsehrauben understands to become. is it is task of the invention to train a cutting circular saw of the kind initially specified in such a manner that the Sägeb] a short-stroke or a long stroke would drive out att alternatively can, so that the cut movement is adaptable the form of the workpieces which can be worked on at any time, without an adjustment of attacks must be made u.dgl. This Aafgabe is solved according to invention thereby that the wave of the Sägehlattes is stored to a ending Sehwenkhebeln, whose are stored other ends on a first axis of rotation at the upper end of a L-shaped carrier, whereby the rockers are tiltable around the first axis of rotation by a first force cylinder that furthermore the L-shaped carrier is stored around a second axis of rotation tiltable in the underframe and is versehwenkbar by means of a second force cylinder that furthermore the lower end of the first force cylinder stores to a lever arm of a double-armed bell crank ge2S is, which is stored in a Drehaehse tiltable in the underframe, and that the other lever arm of the Winkeihebels over a latch with the second Drehaehse which is away arm the L-shaped carrier is articulated connected, so that with manipulation of the first Kraftzyllnders the saw blade implements one approximated vertical movement and with manipulation of both force cylinders the saw blade a vertical and approximated parallel movement to the surface of the saw plate. A Ausffihrungsbeispiel of the invention article is represented and on the basis the same is more near described in the designs. Show: Fig.1 a schematic side view of a cutting circular saw with cut open underframe, Fig.2 an opinion of the saw after Fig. 1 from the front with cut open underframe and the Fig.3 and 4 the representation of the stroke of the saw blade with long stroke and with short-stroke. 3s after the cutting saw the Fig.1 and 2 points an underframe --1-- with housing --2-- up, its upper surface the saw plate --3-- forms. The circular saw blade --4-- can in Fig. 1 dash-dotted represented Ausgangsbzw. End positions take. At a console --5-- Abdeckund is pressing hood -6-- for the workpieces arranged, over an actually well-known ttebelgestänge and a force cylinder --7-- to be raised and on the workpieces which can be worked on be lowered can. This part of the cutting saw belonged to the invention and is not therefore not more near described. On the saw plate --3-- furthermore is a rear attack --8-- for the workpieces which can be worked on fastens. In the housing --2-- is in, by the side seen, L-shaped carrier --9-- arranged, a longer, upward rising up thigh --9a-- and a shorter thigh --9b-- exhibits. At the upper 4s nde of the thigh --9a-- is a first axis of rotation --10-- fastened, on the two rockers --IL-- are stored, which at their other end the camps for the wave --12-- the saw blade --4-- carry. lVlit the wave --12-- is also the end of the piston rod --13-- a hydraulic cylinder --14-- swivelling connected. The carrier --9-- is at the front end of his shorter thigh --9b-- on a second Drehaehse --15-- fastened, those in the underframe --1-- is stored. so the Kolb “nstange --16-- a second hydraulic cylinder --17-- -9a is with the longer thigh-- the carrier --9-- connected. By the piston rod --16-- the cylinder --17-- the carrier can --9-- taken off from the drawn situation into the dash-dotted drawn situation and to be back swivelled. The hydraulic cylinder --14-- is at a bell crank --18-- fastened, that around an axis of rotation --19-- is tiltable. Anglelift --18-- is over a latch --20-- with an arm --21-- connected, that with the thigh --9b-- is firmly connected and diagonally upward arranged from this is away. By this joint mechanism the coupling point becomes --14a-- the cylinder --14-- when swivelling the carrier --9-- in the way it swivels that the saw blade --4-- in the long stroke an exactly horizontal gumption movement implements, how this is represented in Fig.3. At the carrier --9-- furthermore is the electrical driving motor --22-- arranged, that over drive belts --23, 24-- the wave --12-- the saw blade --4-- propels. By a further drive belt --25-- it drives a hydraulic pump --26--, which the necessary oil ffir the cylinders --14 and 17-- supplies. It would be naturally also possible, in place of hydraulic cylinders --14, 17-- To plan pneumatic cylinders, which are fed from a compressed air network. In this case the hydraulic pump became --26-- not applicable. The impact of the cutting circular saw is the following: Caps of woods of relatively small width, e.g. of square woods, etc. only the cylinder becomes --14-- activated. Thus the rockers become --11-- around the first axis of rotation --10-- into taken off the represented situation and back swivels. The saw blade --4-- implements then only one approximated vertical stroke, how it is suggested by the double arrow in Fig.4. For the caps of boards u.dgl, of larger width is switched the cutting saw to long stroke in accordance with Fig.3. In this case first the cylinder becomes --17-- activated, those the carrier --9-- with the rockers --11-- into the dash-dotted situation moves. Then becomes by the cylinder --14-- the saw blade --4-- into its working position raised and in this by the cylinder --17-- against the attack --8-- moved, as this is suggested by the two double arrows in Fig.3. The impact of the cutting saw can be abgestemmt thus favourably on the cross-sectional shape of the Werkstüekes which can be worked on.