FI58575B - ANORDNING FOER HANTERING AV FODER EL DYL - Google Patents

Description

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C .... Patent granted 10 03 1981 Patent meddelat ^ ^ (51) Kv.ik3int.ci.3 A 01 F 25/20 SUOMI - FINLAND (21) pltenttlhek * mul - Ptt * nttn * öknln | 791102 (22) Htkamlspllvt - An * öknlnpd »g 03-0U.79 (Fl) (23) Alkupftlvt - Giltighettdkg 03.0U.79 (41) Tullut | external« ktl - Bllvlt ofTantllg OU. 10.80

Patents and registers (44) Date of registration of Nihtivikiipu | -

Patent and registration authorities AmOkan utlftgd och utl-tkrlfun published 2o.ll.o0 (32) (33) (31) Pyydttty «tuolktu * —Begird priority (71) (72) Pauli Juhani Ojala, Tullikatu U-6 J, 6Ul00 Kristiinankaupunki , Suomi-Finland (Fl) (7U) Oy Kolster Ab (5U) Device for handling feed etc. - Anordning för hantering av foder el.dyl.

The present invention relates to a device for handling fodder or the like, comprising at one end an open, substantially cylindrical or frustoconical, rotatable cutting member for penetrating the substance to be treated, the cutting member being internally threaded to enhance penetration and the retaining member to prevent rotation with the cutting member.

Such a device is disclosed in patent application no.

761606. In order to prevent the material to be treated from rotating prematurely with the cutting member, the device is provided with a retaining member formed by two spikes, which starts to rotate with the cutting member only when the material to be treated has reached a predetermined tightness. Although this device itself works completely satisfactorily, it has the disadvantage that the retaining spikes have to penetrate the substance in a mere plug movement, which requires a fairly high power, and in addition there is sometimes inaccuracy in the operation of the coupling member.

2 58575

The object of the invention is to provide a new device for handling feed or the like, which eliminates the above-mentioned drawbacks.

The device according to the invention is characterized in that the holding member is a central screw, the thread of which is opposite to the thread inside the cutting member and which is adapted to rotate in the opposite direction to the cutting member. Thus, the central screw bites into the material to be treated in the same way as the cutting member itself, and the required power is reduced. When the screw rotates in the opposite direction to the cutting member, it at the same time stops the material from rotating with the cutting member until this is filled. Since the torque arm of the internal thread of the cutting member is larger than the torque arm of the screw thread, this is compensated by making the internal thread short to comprise only the portion near the opening of the cutting member. This also reduces the amount of substance that adheres to this internal thread. By changing the directions of rotation of the cutting member and the central screw, the substance becomes emptied from the cutting member.

The invention will be explained in detail below with reference to an exemplary embodiment shown in the accompanying drawing.

Fig. 1 shows a partial longitudinal section of the device, and Fig. 2 shows the end view of the device from the side of the operating members.

Reference numeral 1 denotes a cutting member of the processing device which is substantially cylindrical or frustoconical and open at one end. The cone shape is somewhat more advantageous, as emptying is facilitated as the substance detaches from the inner wall of the cone. The operating member of the cutting member 1 is preferably a so-called a drive pin 6, on the drive shaft 21 of which the cutting member 1 is mounted by means of a flange 18 having mounting holes 4 'corresponding to the mounting holes 4 at the end of the cutting member. The drive button 6, in turn, can be fastened to the tractor's lifting devices or the like by means of a fastening frame 15 and adjustable lugs 16, 17.

The open end of the cutting member 1 has a sharp edge 2 and a short thread 3 runs along its inner surface, which is preferably a so-called double-ended thread in the same way as disclosed in patent application no. 761606. The drive shaft 21 of the drive terminal 6 is hollow and is supported by a second shaft 20 extending all the way to the open end of the cutting edge 1 ending in a sharp tip 7 and having a part 8 inside the cutting member provided with a thread 8. The thread 8 is opposite to the thread 3 and the shaft 20 is adapted to rotate in the opposite direction to the shaft 21. The rotational movements are effected, for example, by means of a chain transmission 10 connected to the motor 14 and driven by a reversing wheel 16 connected thereto, as shown in Fig. 2.

The device for handling fodder or the like according to the invention operates in such a way that the rotating cutting member 1 with its central screws 20 rotating in the other direction is lowered onto the fodder pile or the like, whereby the edge 2 and the tip 7 cut the material and the threads 3 and 8 penetrate. Due to the opposite directions of rotation and the relative shortness of the thread 3, the material to be treated cannot rotate with the cutting member 1 until it is filled, pressing the material against the bottom and inner wall of the cutting member, the torque caused by the cutting member overcomes the thread of the center screw 8. For emptying, the directions of rotation of the cutting member 1 and the screw 20 are reversed, whereby the threads 8 and 3 push out the material to be treated.