DE29601825U1 - Device for splitting wood, in particular tree trunk parts - Google Patents

Description

PAINTER, Klaus

Seelach 7

76534 BADEN-BADEN

Device for splitting wood, especially tree trunk parts

The invention relates to a device for splitting wood, in particular tree trunk parts of approximately 1 m to 1.1 m in length, consisting of a hydraulically operated working cylinder with a piston rod, which presses the trunk resting on a splitting table arranged in front of it against a splitting knife device.

The previously known devices for splitting such logs consist of a working cylinder arranged on a tractor, in front of which a splitting table is attached, onto which the log to be split had to be placed by hand and which has a splitting knife device at the rear end.

The present invention is based on the object of significantly increasing the ejection of split wood from the splitting device and at the same time reducing the physically demanding work of the forestry workers to a minimum.

To solve the problem, a device of the type mentioned at the beginning is proposed, which is characterized in that the working cylinder with the associated hydraulic pump and the piston rod and a stamp attached to it, the splitting table and the splitting knife device are arranged on the frame of a mobile trailer and on the frame a crane arm with a gripper for picking up and transferring the logs to a side of the frame in

Height of the splitting table with a work table arranged on it at an angle.

The device according to the invention has the significant advantage that after parking and securing the trailer on solid ground and connecting the shaft of the hydraulic pump to a forestry vehicle, e.g. a tractor, Unimog, MB-Trac or similar, the device is immediately ready for use and the tree trunk parts can be picked up by the gripper and placed on the work table. The slanted arrangement of this work table achieves a certain workflow, as the wood rolls can slide along. Individual wood rolls that have been picked up can also be placed directly on the splitting table and split.

According to a particular embodiment of the device according to the invention, the work table is pivotably mounted on the frame and in the working position runs at an angle of 10° to the splitting table.

In order to achieve good guidance of the piston rod and the punch, the punch is guided on the piston rod on preferably four rollers that rest on two double T-rails.

According to a further embodiment of the invention, the splitting knife device can consist of two splitting knives arranged in a cross shape, with a vertically running splitting knife and two horizontally running splitting knives arranged to the side of it with only one bevel running to the rear being provided.

The device according to the invention will be explained in more detail using the example of a preferred embodiment with reference to the drawings.

In the drawings

Fig.1

a side view of the device according to the invention.

Fig.2

shows a plan view of the device of Fig. 1.

Fig.3

shows a front view of the device according to the invention with the crane part removed.

Fig.5

shows a detailed view of the guide for the printing stamp.

Fig.4

shows a top view of Fig. 5.

Fig.6

shows a front view of Fig. 5.

Figures 7, 8 and 9

show a front view, a top view and a side view of the splitting knife device.

As can be seen from Figures 1 to 3, the device according to the invention consists of a mobile trailer with a frame 1 and wheels 2. The frame 1 has a coupling 3 on the front for attaching to a towing vehicle. A hydraulic working cylinder 4 is arranged on the frame 1, which is provided with a hydraulic pump 6 via a pressure line 5, which is connected to the power take-off shaft on the auxiliary drive of a forestry vehicle.

A crane 10 is arranged on a cross bridge 7 connected to the frame 1 and having two hydraulic supports 8, 9 at its ends. The crane 10 has a gripper 11 on the front side which serves to pick up the logs 12 to be split.

As an extension of the working cylinder 4, its piston rod 13 is connected to the pressure stamp 15 via an articulated connection 14. The pressure stamp 15 has four rollers 16 on each side, which are guided between two double T-rails 17. This ensures simple and effective guidance of the pressure stamp, so that relatively large pressure forces can be transferred to the tree trunk to be split.

In front of the pressure stamp 15 is the splitting table 18, on which the tree trunk 12 to be split is placed. At the rear end is the splitting knife device, which consists of a vertical splitting knife 19 and two horizontal splitting knives 20, which only have a bevel 21 at the back. This prevents the wood from being jammed between the splitting knife when splitting. The work table 22 is pivotably attached to the side of the frame 1 and is folded up in the transport position. In the working position it has an angle of inclination to the work table of approx. 10°.

The device according to the invention functions as follows. After the work table 22 has been moved from the transport position to the working position, the operator steers the crane so that he can pick up one or more rolls of wood (tree trunk parts with a length of 1 m to a maximum of 1.10 m) from the ground using the gripper 11. The rolls of wood are placed on the work table 22. The work table can also be mounted alternately, and its inclination achieves a certain work flow, since the rolls of wood can slide onto the splitting table 18. Individually picked up rolls of wood can be placed directly on the splitting table.

After a tree trunk is on the splitting table 18, the piston rod 13 of the working cylinder 4 extends and presses the tree trunk 12 with the stamp 15 against the splitting knife device, consisting of the vertical splitting knife 19 and the horizontal splitting knives 20, where the wood is split. After the splitting process

·

the split wood lies behind the device and the piston rod of the working cylinder is retracted again.

Claims (1)

SCHULZ, Klaus PROTECTION CLAIMS Device for splitting wood, in particular tree trunk parts of approximately 1 m to 1.10 m in length, consisting of a hydraulically operated working cylinder with a piston rod which presses the trunk lying on a splitting table arranged in front of it against a splitting knife device, characterized in that the working cylinder (4) with the associated hydraulic pump (6) and the piston rod (13) and a stamp (15) located thereon, the splitting table (18) and the splitting knife device (19, 20) are arranged on the frame (1) of a mobile trailer and a crane arm (10) with a gripper (11) for picking up and transferring the trunks (12) to a work table (22) arranged on the side of the frame (1) at the height of the splitting table (18) with a slope thereon is attached to the frame (1). Device according to claim 1, characterized in that the work table (22) is pivotably arranged on the frame (1) and is inclined at an angle of approximately 10° to the splitting table in the working position. Device according to claims 1 and 2, characterized in that the stamp (15) coupled to the piston rod (13) is guided on both sides by preferably four rollers (16) resting on two double-T-rails (17). Device according to claim 1, 2 or 3, characterized in that the splitting knife device consists of a vertical splitting knife (19) and two horizontal splitting knives (20) arranged laterally therefrom with only one bevel (21) running to the rear.