WO2007085037A1

WO2007085037A1 - Device and method for splitting uncut timber

Info

Publication number: WO2007085037A1
Application number: PCT/AT2007/000038
Authority: WO
Inventors: Werner Steininger; Johann Thallinger
Original assignee: Werner Steininger; Johann Thallinger
Priority date: 2006-01-30
Filing date: 2007-01-29
Publication date: 2007-08-02
Also published as: EP1984154A1; DE502007006768D1; EP1984154B1; ATE502745T1

Abstract

The invention relates to a device and a method for longitudinally splitting uncut timber. Said device comprises a substantially dish-shaped or arched support (6) or fixture (6) for receiving the log (9) in an essentially horizontal direction, and a splitting wedge which is hydraulically driven or motor-driven in the splitting direction. According to the invention, the splitting wedge is driven into the log (9) in a radial direction.

Description

Apparatus and method for splitting long logs

The invention relates to a device and a method for splitting long logs according to the preamble of claims 1 and 12.

Such a device or such a method is known from AT 00 6 853 Ul; In this case, the long wood is included in the trunk circumference in the longitudinal direction, and split in this direction when splitting by substantially oppositely directed splitting forces a gap from unrecorded part of the long wood, the splitting device is formed by a two-armed splitting tongs, which consists of two split legs , which are mounted on two support plates spaced on both sides with two pivot pins.

The object of the invention is to provide a device and a method for splitting or cutting lumber of the generic type which is structurally simpler and which has an improved effect or unfolds.

This object is achieved by a longwood splitting apparatus according to claim 1 and a log splitting method according to claim 12.

The inventive device for longitudinal slitting of long wood has a substantially cup-shaped or arcuate tray or holder for substantially horizontally lying recording of the long logs, and a hydraulic or motor driven in the splitting direction riving knife on. Following the principle of the invention, it is provided that the splitting wedge is retracted radially into the log.

In a preferred embodiment of the invention, the device is mounted on a vehicle, wherein the tray removably formed on the vehicle frame or is pivotally mounted on the vehicle frame.

In an advantageous continuation of the invention it can be provided that the tray faces away from the riving knife

Side has a stop, the stop in particular carries a cooperating with the riving knife edge.

The drive for the splitting wedge may have a hydraulically arranged on a vehicle or supported hydraulic cylinder.

In this case, the hydraulic cylinder of the riving knife drive can slide in a cylinder bearing, wherein the wall of the cylinder bearing can be formed or provided with a sliding material.

In a preferred embodiment of the invention, the device is mounted in the rear region of a commercial vehicle, wherein the commercial vehicle further comprises a crane

^■ owns the logwood trunk and stores it on the support.

In an advantageous development of the invention can be provided that the shelf for supporting the log is height adjustable, and in particular hydraulically or mechanically mounted in height displaceable.

In a further embodiment of the invention can be provided that the tray for supporting the log has a Auswurforgan, by means of which the log is ejected after splitting from the tray.

The inventive method for splitting or cutting long wood is characterized in that the wood is split or cut by means of a splitting wedge in the longitudinal and / or transverse direction to the wood fiber, and the splitting wedge radially in the log is retracted. The inventive method for longitudinal slitting of long logs is carried out in particular by means of a substantially cup-shaped or arcuate tray or holder for substantially horizontally lying recording of the long logs, and a hydraulic or motor driven in the splitting direction splitting wedge.

Further advantageous embodiments of the device and the method according to the invention are specified in the further subclaims.

The invention will be explained in more detail with reference to an embodiment shown in the drawing. It shows:

Figure 1 is a schematic rear view of the device according to the invention in a first operating position of the splitting wedge.

Figure 2 is a schematic rear view of the device according to the invention in a second operating position of the splitting wedge.

Fig. 3 is a schematic plan view of the device according to the invention; and

Fig. 4 is a schematic circuit diagram of the control for the device according to the invention.

In the figures, a preferred embodiment of the device according to the invention is shown.

The device for longitudinal splitting of long wood 9 mounted on a frame of a commercial vehicle (not shown) comprises a substantially cup-shaped or arch-shaped tray 6 or holder 6 for substantially The tray 6 is pivotally mounted about a joint 8 and a welded to the vehicle frame sheet metal part 1 on the commercial vehicle such that it is in the working position according to figures 1 and 2 pivoted to the outside of the vehicle frame, and can be pivoted in the rest position to the vehicle frame, as indicated by dashed lines in Figure 3.

The tray 6 has on its side facing away from the riving knife 4 a stop 7, wherein the stop in particular carries a cooperating with the riving knife 4 knife edge 11.

The drive for the splitting wedge 4 has a hydraulic cylinder 3 arranged or supported on the vehicle frame. The hydraulic cylinder 3 of the riving knife drive slides in a cylindrical bearing 2 in the form of a profiled tube, wherein the wall of the cylindrical bearing 2 is formed or provided with a sliding material 5.

The entire apparatus is mounted in the rear area of a utility vehicle, the utility vehicle further having a crane for receiving the logwood trunk and depositing it on the support.

The radius of the substantially cup-shaped or arc-shaped tray or holder corresponds to an average Stammholzradius.

During the splitting process, the long wood 9 to be split is placed in the support 6, then the cylinder 3 extends with the splitting wedge 4 and presses the wood 9 to be split against the counter-blade 7 until it is pressed apart by the rising shape of the splitting wedge and in the longitudinal direction (along the fiber) is split. The drive is made by at least one overhead hydraulic power cylinder. This is guided in a profile tube 2, so that the riving knife 4 can not rotate. The shape of the tray 6 or the counter-holder is approximately equal to an ellipse or a semicircle. In these, the material to be split is inserted transversely to the fiber. In addition, the counter-holder 6 is removable or rotatably mounted to z. B. to save space for transport.

In a particular embodiment, the hydraulic cylinder or cylinders may be provided with a bypass valve (FIG. 4) which accelerates the opening of the splitter. Depending on the size and construction of the splitter opening and closing by a correspondingly large-sized Hydraulikzylin- and the correspondingly necessary amount of oil is relatively slow. Since the force required when opening the cleavage device is less than during the cleavage process, the backflow in the cylinder can be reduced by the bypass valve. Thus the necessary force decreases and the speed of the opening process increases. During the splitting process, the bypass valve has no effect.

Function splitter closes:

With low gap resistance valve 18 is open, valve 17 and 18 a closed. The backflowing medium is added via the valve and flows to the side of the larger cylindrical surface. This closes the splitter faster. If the cutting edge then hits the material to be split, a greater resistance is created, thus opening valve 17, valve 18 is closed and the medium of the smaller cylindrical surface then flows directly back into the tank.

Function Forceps opens: The medium flows through valve 18a, valve 17 closed, valve 18 is blocked by a form of line A. The bypass valve is thus without effect.

The main advantage of this design is a quick closing of the cylinder by the regenerative oil recirculation.

In another, not shown in the figures embodiment of the invention can be provided that the receptacle for supporting the log is height adjustable, and in particular hydraulically or mechanically mounted in height displaceable. In this way it is possible that the riving knife to be penetrated radially into the log can be aligned as far as possible with respect to the logwood center.

In another, not shown in the figures embodiment of the invention can be provided that the receptacle for supporting the log has an ejection organ, by means of which the log is ejected after splitting from the recording. Such an ejector can be, for example, a discharge plate pivotally mounted in or on the receptacle, or a variable height lifting element. The ejection member is in turn advantageously powered by a hydraulic cylinder, which hydraulic cylinder also in turn of advantage in a horizontal position, i. is arranged horizontally.

Claims

claims

1. Apparatus for longitudinally splitting long lumber (9), with a substantially shell-shaped or arcuate Abia- (6) or holder (6) for substantially horizontally located receiving the LangholzStammes (9), and a hydraulic or motor in Cleaving direction powered riving knife (4).

2. Apparatus according to claim 1, characterized in that the splitting wedge (4) is moved radially into the log (9).

3. Apparatus according to claim 1 or 2, characterized marked, that it is mounted or mounted on a vehicle, wherein the tray (6) removably formed from the vehicle frame or is pivotally mounted on the vehicle frame.

4. Apparatus according to claim 1, 2 or 3, characterized in that the tray (6) on its the splitting wedge (4) 'side facing a stop (7), wherein the stop (7) in particular one with the splitting wedge (4) carries cooperating knife edge (11).

5. Device according to one of the preceding claims, characterized in that the drive (3) for the splitting wedge (4) has a lying on a vehicle frame or supported hydraulic cylinder (3).

6. Apparatus according to claim 5, characterized in that the hydraulic cylinder (3) of the riving knife drive slides in a cylinder bearing, wherein the wall of the cylinder bearing (2) is formed or provided with a sliding material.

7. Device according to one of the preceding claims, characterized in that it is mounted in or in the rear region of a commercial vehicle, and the Nutz- vehicle further has a crane for receiving the long wooden trunk (9) and for storage on the holder (6).

8. Device according to one of the preceding claims, character- ized in that the radius of the substantially cup-shaped or arc-shaped tray (6) or holder corresponds to an average Stammholzradius.

9. Device according to one of the preceding claims, character- ized in that the hydraulic power cylinder (3) has a bypass valve to accelerate the opening operation of the splitting wedge (4).

10. Device according to one of the preceding claims, character- ized in that the receptacle (6) for supporting the log (9) is adjustable in height, and in particular hydraulically or mechanically displaceably mounted in height.

11. Device according to one of the preceding claims, characterized in that the receptacle (6) for supporting the log () has an ejector, by means of which the log is ejected after the split from the tray (6).

12. A method for splitting or cutting of long wood, characterized in that the wood (9) is split or cut by means of a splitting wedge in the longitudinal and / or transverse direction to the wood fiber, and the splitting wedge (4) radially retracted into the log (9) becomes.

13. A method for splitting long wood according to claim 12, by means of a substantially cup-shaped or arcuate tray (6) or holder (6) for substantially horizontally receiving the long timber trunk (9), and a hydraulic or motor driven in the splitting direction Splitting wedge (4).

14. The method according to any one of the preceding claims, characterized in that the tray (6) for supporting the log (9) in height is adjustable, and in particular is mounted hydraulically or mechanically displaceable in height.

15. The method according to any one of the preceding claims, characterized in that the tray (6) for supporting the log (9) has an ejection means, by means of which the log (9) after splitting from the tray (6) is ejected.