FI123357B2 - Wood cutting device for a wood handling gripper - Google Patents

Abstract

This invention relates to a cutting unit for a wood grip to be used in the handling of wood, such as felling and cutting. The wood handle grips include one or more frames (1), one or more tiling frames (2) pivotally attached to the frame, clamping pins (3) and one or more cutting devices (4) comprising one or more knives (4a), and the knife (4a) has one or more cutting edges (4aa) and a rear portion (4ab). It is characteristic of the invention that the knife (4a) is pivotally attached to its rear part (4ab) by means of one or more pivot joints (4b) on the tilt frame (2), whereby the knife (4a) can be turned to cutting position and away from cutting position.

Description

WOOD PROCESSING DOG WOOD CUTTER

The present invention relates to a wood handling grapple wood cutting device according to the preamble of claim 1.

Nowadays, a wood-cutting blade has been attached to screws to cut wood with screws as a wood-cutting device. Remove the wood cutting blade from its screws during loading.

The current removal and reattachment of the blade is slow because all the blade retaining screws must be opened and fixed to remove and reattach the blade.

It is an object of the present invention to provide a woodworking grapple wood cutting device in which the cutting blade can be rapidly moved to and out of the wood cutting position, whereby the wood handling grapple can be used to load the wood.

The foregoing disadvantage can be overcome and the object described above is achieved by a wood-cutting grapple according to the invention, characterized in that is defined in the characterizing part of claim 1. Preferred embodiments of the invention are claimed in the dependent claims.

The main advantage of the invention is that the wood-cutting grapple wood-cutting device can be quickly removed from the wood-cutting position and quickly returned to the wood-cutting position, whereby the wood-handling grapple can be effectively used for cutting and loading wood. According to the best invented design, the cutting device can be turned into and out of the cutting position of the wood from the operator's cab, this is possible when the cutting of the cutting device is performed in an inventive manner by a hydraulic cylinder or a hydraulic motor. It is clear that the invented woodworking grapple with a wood cutting device achieves great economic savings in harvesting.

The invention will now be described in detail with reference to the accompanying figures.

Fig. 1 shows a wood-cutting grapple with a wood-cutting device, the wood-cutting grab in a cutting position, a wood-processing grapple in a vertical cutting position, viewed from above.

Figure 2 shows the wood-cutting device of the wood-handling grapple of Figure 1, the wood-cutting device being in the cutting position, the wood-handling grab in the horizontal cutting position of the wood, viewed from below.

Figure 3 shows the wood cutting device of the wood handling grapple of Figures 1 and 2, the wood cutting machine being out of the wood cutting position, the wood handling grapple in the wood loading position, viewed from below.

Fig. 4 shows the wood-cutting grapple of Figures 1-3, the wood-cutting grapple in the cutting position, the wood-working grapple in a vertical cutting position, viewed from below.

Fig. 5 shows the wood cutting grapple of Figures 1-4, the wood cutting grapple in the cutting position, the wood handling grapple in the vertical cutting position, rear view.

Fig. 6 shows the wood-cutting device of the wood-handling grapple of Figs. 1-5, the wood-cutting device being in the cutting position, the wood-processing grating in the horizontal cutting position of the wood, the blade locking means being spring-loaded pivot pins.

Fig. 7 shows the wood-cutting grapple of Fig. 1-5, the wood-cutting grapple in the cutting position, the wood-working grapple in the horizontal cutting position of the wood, the blade locking member having a spring-loaded handle, viewed from below.

Fig. 8 shows the wood cutting grapple of Fig. 1-5, the wood cutting grapple being in the cutting position, the wood handling grapple in the horizontal cutting position of the wood, the blade rotator being a hydraulic motor, viewed from below.

Fig. 9 shows the wood-cutting grapple of Fig. 1-5, the wood-cutting grapple in the cutting position, the wood-working grapple in the horizontal cutting position of the wood, the blade rotator being a hydraulic cylinder, viewed from below.

Fig. 10 shows the blade of the wood-cutting device of Figs 1-9, viewed perpendicularly from below.

Fig. 11 shows a blade of the wood-cutting grapple of Fig. 10, viewed perpendicular to the side.

In the figures, the parts of the woodworking grapple and its woodcutting device and their locations are marked as follows. Frame 1, Frame is a prior art woodworking grapple frame having a mounting surface 1a for a pivoting device. The figure further shows a known rotating body 2 of a wood handling grapple having a base 2a. The body 2 also has known wood-holding clamping jaws 3. The figure shows a newly invented cutting device 4 having a blade 4a and a pivot joint 4b. The blade 4a has a cutting edge 4aa, a rear part 4ab, an upper surface 4ac and a lower surface 4ad. The pivot joint 4b has a pivot pin 4ba, a locking member 4bc, and a pivot 4bd. The articulation ear 4ba has a blade ear 4baa, a swivel body ear 4bab and a pivot pin 4bba. The blade lug 4baa has a locking hole 4baaa and the blade lug body 4baab. The locking member 4bc has a cutting position lock 4bca and a loading position lock 4bcb. The swivel body earbud 4bab has a swivel body earbud 4baba. The blade ear frame 4baab is secured to the blade 4a by means of fastening means 4baac. The swivel body earbody 4baba is secured to the swivel body 2 by means of fastening means 4babb. The fastening elements 4baac and 4babb may be screws and nuts or similar known fastening means.

A woodworking grapple for cutting wood for use in woodworking such as felling and cutting, wherein the woodworking grapple has one or more frames 1, one or more pivoting bodies 2 pivotally attached thereto, clamping jaws 3 and one or more cutting devices 4 having one or more blades 4. The blade 4a has one or more cutting edges 4aa and a rear portion 4ab. The frames 1 may have several, e.g. screws, fixed to each other, the turning bodies 2 may also be several as mentioned above. Each of the clamping jaws 3 always has two clamping jaws 3 clamping against each other. There may be several cutting devices 4, but according to the best construction there is one piece. In the figures it is shown that the blade 4a has three cutting edges, one is a front front cutting edge 4aaa and one is a side cutting edge 4aab on both sides. The rear part 4ab of the blade 4a is non-cutting, the rear part 4ab has a pivotal joint 4b of the blade 4a. The front of the wood handling grapple refers to the direction of the clamping jaws 3 when the clamping jaws are in the upright position of the upright wood as shown in Figure 1. The blade 4a in Fig. 1 is outwardly in the compression space between the clamping jaws 3, i.e. in the cutting position and in this position the upper surface 4ac of the blade 4a is upwards and the lower surface 4ad is downwards.

Inventively, as shown in the figures, the blade 4a is pivotally mounted at its rear end 4ab on the pivot body 2 by one or more pivoting joints 4b, whereby the blade 4a is pivotable to and away from the cutting position. The blade 4a pivots on the pivot joint 4b as the book page pivots at its attachment point, i.e. the blade 4a pivots with its flap. The pivot joint 4b is parallel to the rear part 4ab of the blade 4a, whereby the blade 4a can be pivoted backwards under the pivot body 2, as shown in Fig. 3. As shown in Fig. 3, when turned underneath the bottom 2a of the pivot body 2, the front cutting edge 4aaa of the blade 4a points backwards, whereby its cutting edge 4aa cannot cut the wood. In Fig. 3, the lower surface 4ad of the blade 4a is turned towards the bottom 2a of the pivot body 2. In Fig. 3, when turned under the base 2a of the turning body 2, the blade 4a has exited the pressing line of the clamping jaws 3, whereby the wood handling grapple can be used to load and move the trees like a conventional wood handling grapple.

The invented pivot joint 4b is parallel to the bottom 2a of the pivot body 2. The pivot joint 4b consists of one or more pivot lugs 4ba to which the blade 4a is pivotally mounted, which pivot lugs 4ba are below the bottom 2a of the pivot body 2.

In the figures it is shown that the blade 4a has one or more blade lugs 4baa attached to the blade lugs body 4baab and the pivot body 2 has one or more swivel body lugs 4bab attached to the turning body lugs 4baba. The blade lug 4baa has one or more blade lug body 4baab attached to the blade 4a by one or more fastening means 4baac. The pivot 5 frame latch 4bab has one or more pivot frame latch body 4baba attached to the pivot frame 2 by one or more fastening means 4babb 2. The above-mentioned blade latch body 4baab and the pivot frame latch body 4baba allow for easy removal of the part can be quickly replaced with a new one, eg in case of breakage. Further, the cutting device can be sold in a so-called. as an accessory so that the user can purchase it later if needed.

The blade 4a can be locked in or out of the cutting position by one or more locking members 4bc. One or more blade lugs 4baa have one or more locking holes 4baaa for the locking member 4bc. The locking member 4bc consists of one or more spring-loaded pins and / or one or more spring-loaded handles and / or one or more spring-loaded pins and / or one or more spring-loaded pivot pins.

Figures 1 to 5 show a locking member 4bc consisting of two spring-loaded pins having hexagon nuts with nuts with a slanted lower surface at their ends. The spring-loaded pins are inside the sleeve and the outer end of these sleeves is also oblique. As a result of the above-mentioned design, when turning the hexagon nuts, the locking pin is raised outwards, whereby the locking is released, after which the blade 4a can be turned to another position. The embodiment of the locking member 4bc shown in Figs. 1 to 5 has its own locking nut / pin combination for the shear locking 4bca and the loading position locking 4bcb.

Fig. 6 shows a locking member 4bc consisting of two spring-loaded pins, each pin being pulled to release the lock by an eccentric pivoting pivoting lever.

Fig. 7 shows a locking member 4bc consisting of a single spring-loaded handle whose ends serve as shear locking 4bca and loading position locking 4bcb, by pulling the handle outwards, both of the above lockings can be released, whereby the blade 4a can be rotated to the desired position.

8, the blade 4a is rotated to or from the cutting position by one or more hydraulic motors. The hydraulic motor is provided with a fluid pressure released brake, whereby the hydraulic motor together with the brake also forms a locking member 4bc. The locking member 4bc may also be provided with one or more locking pins which are hydraulically lockable and unlockable.

9, the blade 4a is rotated to or from the cutting position by one or more hydraulic cylinders. The locking member 4bc may be a pivoting hydraulic cylinder, whereby the end positions of the hydraulic cylinder act as a shear lock 4bca and a load position lock 4bcb.

The invented woodworking grapple woodcutting device and related technology can be made by known methods and machines, preferably from known metals.

It will be apparent to one skilled in the art that the invention is not limited to the above alternatives, but that many modifications are possible within the scope of the inventive concept as defined by the appended claims.

Claims (11)

A cutting unit for a wood grip for use in the handling of wood, such as felling and cutting, which wood handling grip comprises one or more frames (1), one or more tiling frames (2) pivotally attached to the frame, clamps (3) and one or more cutting means (4) comprising one or more knives (4a), and the knife (4a) having one or more cutting edges (4aa) and a rear part (4ab), and that the knife (4a) can be turned into cutting position and away from cutting position; characterized in that the knife (4a) is pivotally mounted in its rear part (4ab) by means of one or more pivotal joints (4b) to the tilt frame (2), and that the pivot joint (4b) is parallel to the rear part (4a) of the knife (4a), and that the knife (4a) can be pivoted rearwardly under the tilt frame (2) away from the cutting position. A cutting unit for a wood grip according to claim 1, characterized in that the pivoting joint (4b) is parallel to the bottom (2a) of the tiltram (2). A cutting assembly for a wood grip according to claims 1-2, characterized in that the pivot joint (4b) is formed by one or Hera joint attachment (4ba), in which the knife (4a) has a pivotable attachment. A cutting unit for a wood grip according to claim 3, characterized in that the hinge bracket (4ba) is formed by one or more knife fittings (4baa) and one or more tether frame brackets (4bab). 5. A cutting unit for a wood grip according to claim 4, characterized in that one or more Hera knife fittings (4baab) are fixed in the knife fitting (4baa) which are fixed to the knife (4a) with one or more fastening means (4baac). A cutting assembly for a timber grip according to claim 4, characterized in that one or more tether frame fasteners (4baba) are fixed to the tether frame (4bab) which are fixed to the tiltram (2) with one or more fastening means (4bab). A cutting unit for a wood grip according to claim 1, characterized in that the knife (4a) can be read in cutting position or away from cutting position with one or more reading means (4bc). A cutting unit for a wood grip according to claims 4 and 7, characterized in that one or more knife fittings (4baa) have one or more reading heels (4baaa) for the reading means (4bc). A cutting assembly for a wood grip according to claim 8, characterized in that the reading means (4bc) are formed by one or more spring loaded pins and / or one or more spring loaded handles and / or one or more springs and / or one or more spring loaded with a rotary arm. pins. A cutting unit for a wood grip according to claim 1, characterized in that the knife (4a) can be turned into cutting position or away from cutting position with one or Hera hydraulic motors. A cutting unit for a wood grip according to claim 1, characterized in that the knife (4a) can be turned into cutting position or away from cutting position with one or more hydraulic cylinders.