FI61117B - BRYTJAERN - Google Patents

Description

ΓΒΐ <11) ANNOUNCEMENT Λ * Ί «Tfc IBJ UTLAGGNI NGSSKRI FT ® 1 1 1 'C ..latent granted 10 06 1982' Patent meddelat (51) Kv.ik.3 / i« .a.3 A 01 G 23 / 08 FINLAND — FINLAND (21) p »t * nttih« k * mu · —ΡΜ · ο »Μβι« «ΐιι * 783652 (22) Hak« mltpllvt - AmBknliigtdag 29.11.76 (23) Alkuptlvi — Glkighatsdag 29.11.78 (41) ) Gotten stuck - Bllvlt offuntllg 31.05.79

Patent and Registration Office ______________ . ,. ...., „* (44) Date of issue of the plain weave | -

Patent- och registerstyrelsan λ Antttkun utlucd och utttkrHtun pubiicurud 26.02.82 (32) (33) (31) Pyy «*« * y utuoikuut - B «glrd prlorltut 30.11.77

Sweden-Sweden (SE) 7713532-5 (71) Sandvik Aktiebolag, Fack, S-811 01 Sandviken, Sweden-Sweden (SE) (72) Nils Göran Eriksson, Edsbyn, Lars Peter Engman, Edsbyn, Sweden-Sweden (SE) (7 ^) Oy Kolster Ab (51 *) Kaatokanki - Brytjärn

The invention relates to a felling rod for use in felling trees, comprising a rod having a plate at one end and a handle attached to the other end, the plate being an integral part of the rod and formed by twisting the rod.

Conventional pouring rods comprise a plate to which a rod with a handle is attached. The plate is often provided with a protrusion welded to the plate to obtain a new handle. A significant disadvantage of this kaa token is that the joint between the plate and the rod can break. Other disadvantages are that it contributes to both the time consuming and expensive hisatat plate rig and cantilever plate.

The present invention, which eliminates the above-mentioned disadvantages, is characterized in that the pouring rod is provided with a wedge-shaped transition part interposed between the plate and the remaining part of the rod, and that the wedge-shaped transition part partly acts as a conventional wedge, partly a re-adhesion. The invention will be explained in more detail with reference to the accompanying drawing, in which: Fig. 61117 shows in Fig. 1 a view of one side of the tipping bar and in Fig. 2 a view of its second side.

The pouring bar comprises a bar 2 made of plate iron, one end of which is provided with a handle 1. At the other end of the bar is a plate 3 formed by rotating the lower end of the bar 90 °. Thanks to this structure, three essential e-tuts are achieved. First, the plate 3 is an integral part of the rod 2, so that there is no special joint between the plate and the rod that could break. Second, when the rod is used, it is oriented so as to obtain maximum strength against bending. Third, the transition portion between the plate and the bar is a continuously increasing wedge 4, the largest dimension of which is the same as the maximum width of the bar. This wedge 4 works in two ways. First, it acts like a traditional wedge, i.e. the felling rod can be forced into the sawing gap, for example, when the trees are felled with a force directed in the longitudinal direction of the felling rod. Second, the wedge 4 acts as a protrusion when acquiring new extracts. This means that, for example, when felling trees, the felling rod is pushed deeper into the sawing slot when the tree begins to move and in this way the vertical movement of the rod can be limited.

In order to reduce the risk of the felling bar slipping out of the sawing slot, the front part of the plate is provided with a protruding part 5, which can be sharpened and adheres to the remaining part of the wood which forms the stump.

When making a pouring bar, the bar is cut from a suitable iron plate. One end of the bar is rotated 90 ° to form a plate and the other end of the bar is provided with a handle made of rubber or similar material. In this way, the manufacture of the pouring bar is very simple, which makes the pouring bar cheap, but still very suitable for its purpose.