FI70383C - TVAERFOERFLYTTARE FOER EN STOCK - Google Patents

Description

ΓΒΊ Mi advertisement publication

B UTLÄGGNINGSSKRIFT 'UOÖO

® ® ^ (45) uj vty

Patent i; .e '' Elit ID 00 10SG (51) Kv.lk. '/ Int.CI. * B 27 B 31/06 SUOMJ - FINLAND (21) Patent application - Patentansökning 8021 1 3 (22) Application date - Ansökningsdag 02.07 .80 (H) (23) Date of commencement — Giltighetsdag 02.07-80 (41) Has become public - Blivit offentlig 03.01 .82

National Board of Patents and Registration Date of publication and publication. - 27.O3.86

Patent and registration authorities '' Ansökan utlagd och utl.skrifter. published (86) Kv. application - Int. ansökan (32) (33) (31) Requested priority — Begärd priority (71) Kallion Konepaja Oy, PO Box 25, 21201 Raisio, Finland-Fin 1 and (FI) (72) Lars Willberg, Turku, Arto Aalto, Raisio, Finland -Fin 1 and (FI) (7 * +) Ins.tsto Olli Heikinheimo Ky (5 * 0 Log cross conveyor - Tvärförf1yttare för en stock

The invention relates to a transverse log conveyor, in particular a so-called for saws or the like, comprising at least one circular saw and a table movable past this blade, on which the log rests parallel to the blade during sawing, the transfer comprising two hook-shaped transfer arms mounted on a frame structure under the table, the pivots of which are parallel to the table.

The above-mentioned circular saws are popular, for example, in agricultural enterprises or in sawmills of different sizes, where they can be part of a larger system. Known field saws usually operate with a two-man occupation. In this case, the sawmill works near the circular blade and the helper usually at the back of the table. The main task of the helper is to position the back of the tree on the table according to the sawmill's instructions so that the yield from each log would be as good as possible. The disadvantages of the known field saws are based on the use of an assistant. The assistant's salary represents a significant cost item each year. In addition, there are clear difficulties in the work itself. The distance between the sawmill and the assistant and the loud noise cause communication difficulties.

2 70383

The object of the invention is to provide a mechanical device which completely replaces an assistant. This is of great financial importance because the assistant's salary is saved. In addition, occupational safety will be improved by halving the number of people prone to accidents. In fact, occupational safety is improving even more, as efforts have often been made to employ young people or people who are otherwise unfamiliar with the job. To achieve this, the log conveyor according to the invention is characterized mainly by the elements set out in the claim.

In the following, the invention will be explained in detail with the aid of the accompanying drawings.

Figure 1 shows one embodiment of the invention fitted in connection with a field saw.

Figure 2 shows a top view of the apparatus of Figure 1.

Figure 3 shows a log transfer according to the invention in the direction of a table.

Figure 4 shows a section IV-IV of Figure 3.

Figure 1 shows a log transfer 1 according to the invention in connection with a single-blade circular saw. The circular saw comprises a blade 2 and a movable table 4 mounted on a frame 3. The log to be sawn is attached to a table 4, which can be moved past the blade 2 by mechanical feed. The device according to the invention makes it possible to saw with only one man. In this case, the saw operator usually stands close to the saw blade 2. The log is easily positioned by the log transfer 1 according to the invention, which will be explained in detail below.

The log conveyor 1 comprises a circumferential body 5 provided with height-adjustable legs 6, 7. Shafts 8 and 9 are mounted on the upper surface of the body 5. Transfer arms 10, 11 are attached to the shafts 8, 9. A hydraulic cylinder 12 is attached to each transfer arm 10, 11. 13. By means of the hydraulic cylinders 12, 13, each transfer arm can be rotated about its own axis 8, 9 by a certain angle. The transfer arms 10, 11 are arranged on the shafts 8, 9 in different planes so that they can move without interfering with each other.

According to Fig. 3, the log shifter is placed below the table 4 'at such a height that the working movement of the transfer arm 10, 11 extends above the level of the table. In this case, the log on the table can be moved to the desired position in the transverse direction of the table 4 'by the transfer arms 10, 11.

The invention has been described above with reference to only one preferred embodiment thereof. However, it is clear that it is not intended to limit the invention in any way to the example. Thus, the structure of the log conveyor according to the invention may differ considerably from the example described above. The transfer arms can be mounted on the same shaft and have different shapes as shown in the drawings. It is conceivable that the transfer arms can be manufactured as a single piece, the control movement of which is controlled, for example, by one double-acting cylinder, etc. Thus, the scope of the invention can be read only from the following claims.

Claims (3)

70383 4 1. for field saws or the like comprising at least one circular saw and a table (4, 4 ') movable past this blade (2), on which the log rests parallel to the blade during sawing, the conveyor comprising two frame structures (5, 4') placed under the table (4, 4 ') ) bearing hook-shaped transfer arm (ID, H), the pivot axes (8, 9) of which are parallel to the direction of movement of the table (4, 4 '), characterized in that each transfer arm (10, 11) is provided with its own drive device (12, 13), by means of which the transfer arms (10, li) are made to perform, independently of one another, an adjustable positioning movement extending from below the table surface substantially above the surface of the table (4, 4 '). Transverse log shifter according to Claim 1, characterized in that the transfer arms (10, 11) are mounted on the same shaft. Transverse log shifter according to Claim 1 or 2, characterized in that the frame structure (5) is height-adjustable.