• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a timber harvesting device which is selectively switchable between the two functions "loading gripper" and "clamp harvester", wherein the switching from the function "loading gripper" on the function '' Klemmernter "can be triggered by the pivot arms (2.1, 2.2) which during the Operating state "load gripper" form the gripper arms of the charging gripper, are pivoted to the maximum open position and wherein the reverse switch is triggered by the pivot arms (2.1, 2.2) are pivoted to the maximum closed position.
    公开号:AT515434A4
    申请号:T251/2014
    申请日:2014-04-04
    公开日:2015-09-15
    发明作者:Wolfgang Haselsteiner；Stefan Kerschbauer；Josef Haselsteiner
    申请人:Wolfgang Haselsteiner；
    IPC主号:
    专利说明:

    description
    The invention relates to a timber harvesting device, which is hydraulically coupled to the boom arm of a mobile working machine such as a tractor or excavator o the timber harvesting trailer and optionally between the two functions "loader for trees and St advises always". and " Clamp harvester for trees and shrubs " is switchable. In the function " clamp harvester " can be felled using the timber harvester trees and shrubs by pressing a knife plate with the cutting edge in front of hydraulic force application transverse to the fiber direction in the shreds or trees to be cut.
    As early as 1959, DE 1059232 B shows a cutting device for the felling of trees, which is based on the cutting principle of a clamp nut. The tree to be felled is clamped between a knife plate and another part and the other part is verschöben by means of a hydraulic drive relative to the blade plate on this, so that the blade plate penetrates into the wood of the tree and this finally cuts through. The cutter is not combined with a loading gripper and it is not coupled to the boom arm of a mobile work machine.
    DE 1901108 A1 shows a clamp harvester for harvesting wood, which is attached to the boom arm of a mobile work machine and has a relative to a frame stationary cutting plate, and hydraulically driven pivotable pivot arms which form the arms of a loading gripper. The clamp harvester is movable to a position in which the pivot arms are pivotable in horizontal planes and thereby hold upstanding trees and shrubs and so can press against the cutting edge of the Sehneidpiatte that the trees and shrubs are cut through. With the help of the device, the cut trees and shrubs are kept well even after cutting and can be stored in an orderly manner. It is not intended and possible to remove the cutting plate of the device so that the device could be used as a simple loading gripper.
    The US 3785415 Ά shows a Klemmerriter which is somewhat simplified over that of DE 1901108 Al. The felled trees are not kept as good after felling as in the construction according to DE 1901108 Al. For stronger trees are likely to be cut with the same machine cost. It is not intended and possible to move the cutting plate of the Klemmernters in a retracted position so that it would also be applicable as a simple loading gripper.
    EP 0 710 068 B1 describes a mobile harvesting harvester such as a timber harvesting trailer, which has a cantilever arm to which two tools are attached, but which can optionally be used individually only. The one tool is a clamp harvester for felling trees. The second tool is a conventional forage harvester for wood. The harvester may allow comfortable working, but is expensive in terms of apparatus.
    DE 69812140 T2 describes a clamp harvester which has a knife plate and pivot arms which are all hydraulically driven relative to a common frame. Fainer trees and shrubs are felled by keeping the knife plate still against the frame and the Sehwenk arms pressing the trees and shrubs against the cutting edge of the knife plate. A stronger tree can be felled by closing the cutting arms so far around the tree that the free ends of the gripping arms can be connected together so that they are mechanically locked against opening. Then, the knife plate is moved with the cutting edge first relative to the frame so that it penetrates into the tree and cuts through this. It is not intended and possible to remove the small-diameter cutter's insert so that it could also be used as a simple loading gripper.
    WO 2005099438 A1 shows a device which is attached to the extension arm of a mobile work machine and has both a clamp and a loading gripper and is intended for felling and moving trees and shrubs. The Klem-mernt & r is as a whole (ie with Schnei dplatte and arms which can possibly be pressed to the cutting material to the cutting plate) wegschwenkbar from the loading gripper, so that the device is also applicable as a simple gripper without cutting function. The equipment required for the device is very high; The device itself is heavy and has many parts; for the control of the device itself several independent hydraulic travel are required.
    The AT 11450 Ul shows a modification of a Klemmernters. The device has a loading gripper and it has hydraulically drivable cutting blades, which are movable parallel to the pivoting plane of the pivotable arms of the loading gripper and can cut through a standing tree. The drive of the cutting blades is coupled to the drive of the arms of the loading gripper such that the cutting blades only come into cutting motion when the pressure in that hydraulic circuit which closes the arms of the loading gripper exceeds a certain limit. In this way, you will end up with only one hydraulic circuit for controlling and driving the device and still can use it either as a simple charging gripper or as a clamp harvester. The disadvantage is that many hydraulic pistons are required, which have to be designed for large loads and large distances, and that, in the event of careless handling, they are in the operating condition "load gripper". may lead to unwanted cutting of the goods gripped by the loader.
    The object of the invention is to provide a timber harvesting machine which attaches to the Äuslegerarm a mobile Ar beitsmaschine such as a tractor or excavator or timber harvesting trailer and to be controlled by the working machine and hydraulically driven and which optionally between the two functions " loading gripper " for trees and shrubs " and " Clamp harvester for trees and shrubs " is switchable, with the device only one hydraulic circuit should be required.
    Compared with the construction method known from the AT 11 450 ül known to the harvester to be more robust and to avoid the risk that in the function " loading gripper " can be cut. To solve the problem of a construction for a wood harvesting device with the following features: • The wood harvesting device has a frame and this compared hydraulically driven guided movable pivot arms and a relative to the frame - preferably hydraulically - driven guided movable cutting plate. • In operating state " loading gripper " The swivel arms form the arms of the loader. • In the operating state " clamp harvester " the cutting plate is held stationary relative to the frame and the pivot arms press trees or shrubs to be cut off against the cutting edge of the cutting plate.
    As an improvement to this invention, the following further features are proposed: • The cutting plate is hydraulically driven relative to the frame between a retracted and an extended position, wherein the wood harvesting device in the retracted position, the function "loader" holds and in the extended position, the function "Klemmernter ". • In the extended position, the insert is held immovable to the frame by a mechanical lock, ie by rigid parts (and not by the pressure of a hydraulic piston). • It is possible to move the cutting plate from the retracted position to the extended position by swiveling the pivoting arms of the loading gripper into the maximum open end position. • It is possible to move the cutting plate from the extended to the retracted position by swiveling the pivoting arms of the loading gripper into the maximum closed end position.
    In the operating condition " clamp harvester " is stationary relative to the frame and is held by a mechanical lock, high-strength mechanical guides and a strong hydraulic piston can be saved.
    By initiating the movement of the insert from the retracted position to the extended position by maximum opening of the pivot arms, there is no danger of the insert, during the closing of the pivot arms, catching wood during the function " loading gripper " unintentionally comes into the Schnei dpos.ition. By holding the cutting plate in the extended step by a mechanical lock and not by a hydraulic cylinder and by the extension of the cutting plate by the position of the pivot arms is triggered, and also by the retraction of the cutting plate by the position of the pivot arms is triggered, you can with a hydraulic circuit to find the Auslangen.
    The invention is illustrated by means of a drawing:
    Fig. 1: shows a schematic diagram of an exemplary inventions to the invention timber harvesting device in the operating state " Klemmern-ter ". Only parts essential for the understanding of the invention are outlined by way of example. Hidden lines may be outlined by dashed lines.
    With reference to the schematic diagram of Fig. 1, the viewing direction of the viewer is parallel to the pivot axes of the pivot arms 2.1, 2.2, which are held by means of pivot pins 3.1, 3.2 on the frame 1 pivotally mounted. The pivoting movements of the pivot arms 2.1, 2.2 are driven by a double-acting hydraulic cylinder 4, which is pivotally ally with its two ends, each with a pivot arm 2.1, 2.2, wherein the connec tion points to the pivot arms 2.1, 2.2 with respect to their pivot axes are each eccentric.
    As usual with loading grippers, the pivot pins 3.1, 3.2 of the two pivot arms 2.1, 2.2 slightly spaced apart and rule between the pivot arms 2.1, 2.2 is a space enclosed to which the pivot arms 2.1, 2.2 are concavely curved.
    As outlined in Figure 1, the log harvester is operating in the " clamp harvester " is in the space between the pivot arms 2.1, 2.2 protrudes from the side of the frame 1 ago
    Cutting plate 5, wherein the cutting edge 5.1 is aligned facing this space. The plane of the cutting plate 5 is normal to the mutually parallel pivot axes of the two pivot arms 2.1, 2.2. If the two pivot arms comprise a Kolzstaram and - driven by the hydraulic cylinder 4 - continue to close, the log is pressed against the cutting edge 5.1 of the cutting plate 5 and cut apart.
    On the frame 1, the cutting plate 5 is pivotally supported, namely on that Y-bolt 3.1, to which also the pivot arm 2.1 is pivotally mounted. In its respective pivot position relative to the frame 1, the cutting plate 5 is moved by a hydraulic cylinder 6, which is connected to the middle joint of a toggle lever 7. One end of the toggle lever 7 is pivotally connected to the frame 1, the second end is pivotally connected to the cutting plate 5. The junction of the toggle lever 7 with the cutting plate 5 is with respect to the pivot axis of the cutting plate 5 relative to the frame 1 eccentric. {In place to keep the cutting plate on the frame 1 pivotally guided, you could also linearly slidably guided on the frame 1 hold. In general, the pivotally guided hold is easier robustly executable.)
    When the piston of the hydraulic cylinder 6 is extended, the toggle lever 7 is stretched to just above its dead center and the cutting plate 5 is pivoted to the position shown in Fig. 1, in which the timber harvester in the operating state " Xlemmernter " located. When the piston of the hydraulic cylinder 6 is retracted, the toggle lever moves into a strongly bent position, the cutting plate 5 no longer projects beyond the frame 1 into the space between the pivoting arms 2.1, 2.2. The cutting plate 5 is then inactive and the wood harvesting device is in the operating state "loading gripper". (The term " hydraulic cylinder " simply means the piston and cylinder assembly; " piston " means that the piston rod continues to come out of the cylinder; " piston retract " means that the piston rod is pushed into the cylinder. )
    According to the invention, the transition from the operating state " loading gripper " (Retracted cutting plate 5) in the Betriebszüstand " Clamps he " triggered by the swing arms 2.1, 2.2 are moved to the maximum open position, which is the person who operates the harvester, so for example, the driver of the tractor on the boom arm the harvester is attached, easy to control is without requiring a separate lever or requires a separate hydraulic circuit.
    Realized, this control can be, for example, simply by the fact that the high pressure side of that hydraulic circuit is driven by the hydraulic cylinder 4 to retract, with the interposition of a pressure follower valve, also applied to the side facing away from the piston rod of the hydraulic cylinder 6. If the retraction of the hydraulic cylinder 4 causes the
    Bffn ^ R.P. Ι, ιης, α, -ν, "*"! "™ ·«, 2-1, 2-2 «x,,. < * i. ^ 1. C wild, the piston of the hydraulic cylinder 4 no longer retract. The pressure on the high-pressure side of the hydraulic circuit then increases so much that hydraulic fluid flows through the pressurized follow-through valve into the hydraulic cylinder 6, namely on the side of the piston facing away from the piston rod, whereby the piston of the hydraulic cylinder 6 extends, the toggle lever 7 is stretched and the cutting plate 5 is moved in the extended pitch. In an alternative construction, one could attach a hydraulic valve to the harvesting gripper, which in the last part of the opening movement of a gripper arm 2.1, 2.2 touches it and is thus actuated thereby causing the extension of the hydraulic cylinder 6.
    If you can not do it every time when the operating condition " loading gripper " to the operating state " clamp harvester " to be converted, the swing arms 2.1, 2.2 completely open, you can the timber harvesting device, for example, on the frame 1, provided with an adjustable stop member, which may be the opening movement of the pivot arms 2.2, 2.2 earlier limited and thus the above-mentioned pressure increase at the High pressure side of the hydraulic circuit causes, through which the extension of the cutting plate 5 is triggered.
    As shown in FIG. 1, the toggle lever 7 is moved beyond its extended position until it comes into contact with its middle joint on a stop part 8, which is fixed to the frame 1, the cutting plate 5 is then in the in Fig. 1 sketched extended position fixed when the hydraulic raulikzylinder 6 no longer exerts force on the toggle lever 7 which is the case when the Schwenkaxme 2.1, 2.2 are closed for the purpose of grasping and pressing of wood. (Of course you can also limit the Schwenkbarke.it the toggle lever by a stop, which is located in one of the joints of the toggle itself.)
    Also according to the invention, the transition from the operating state " Klem-mernter " {Extended Cutter 5) in the. Operating state " loading gripper " (retracted cutting plate 5) triggered by the pivot arms 2.1, 2.2 are moved to the maximum closed position, which is the person who uses the harvester, so for example, the driver of the tractor on the boom harvester is attached, easy to control without it this requires a separate lever or a separate hydraulic circuit.
    Realized this control can be, for example, simply by the fact that the high pressure side of that hydraulic circuit is driven by which the hydraulic cylinder 4 to extend, also to the piston rod side facing the hydraulic cylinder 6 is applied and by a valve 9, which in dependence on the position of the pivot arm 2.1 is opened, if necessary, discharge of hydraulic fluid from the side facing away from the piston rod side of the hydraulic cylinder 6 releases. In the example outlined in Fig. 1, the valve 9 is a kind of button, which is normally closed. Only when the pivot arm 2.1 is moved to the fully closed position, it abuts the tip of the slider 10, which is held linearly displaceably mounted on the frame 1 and thereby pressed against the Ausl Öseknopf the valve 9 - This will drain hydraulic fluid from the Hydraulic cylinder 6 and that released from the side facing away from the piston rod. As a result, that pressure is still applied to the other side of the piston so that the hydraulic cylinder 6 retracts. (To extend the hydrau likzylinder 6 is still driven when applied pressure on both sides of the piston, since the effective piston surface is smaller at the piston rod side of the piston to the cross-sectional area of the piston rod than at the side facing away from the piston rod side of the piston.
    An exemplary other (not outlined) possibility to cause the retraction movement of the cutting plate 5, which would be, with the extension movement of the cutting plate 5, which may be driven by a single-acting hydraulic cylinder, also a between insert 5 and frame 1 arranged spring to tension the mechanical locking, which holds the insert in the extended position, acts. With the drive of the Einschwenkbewegung the pivot arms 2.1, 2.2 drain can be released from the said hydraulic cylinder. Only with the complete swinging in of a swivel arm 2.1, 2.2 is - if necessary via mechanical translation parts - acted on that lock (toggle lever 7), which otherwise holds the cutting plate 5 in the extended position and the lock solved it. Driven by the said tensioned spring, the cutting plate 5 is thus pivoted back into the retracted position.
    According to an exemplary third possibility could be driven by a double-acting hydraulic cylinder, the extension movement of the cutting plate, wherein preferably the driving hydraulic pressure is applied to the side facing away from the piston rod side, and wherein a pressure accumulator is charged by the forcibly drained from the other piston side hydraulic fluid. For the retraction of the cutting plate is by a valve (9), which in the last part of its closing movement by a pivot arm (2.1, 2.2) is released, discharge from the side facing away from the piston rod side of the hydraulic cylinder released, whereby the piston according to the pressure memory is pushed into the retracted position.
    Likewise, according to an alternative - not sketched-construction also the extension of the cutting plate 5 without separate hydraulic cylinder 6 realize, for example by the opening movement of a pivot arm 2.1, 2.2 a mechanical translation, such as a slider drives, on the. Cutting plate 5 acts and this pivots in the extended position. Such a mechanism could be made quite slender and with a very high gear ratio (small driving movement translated into large driven motion), since the movement of the cutting plate 5 in the extended position yes takes place while the cutting plate 5 is not burdened by good to be cut.
    There are a variety of alternative ways to realize the pivot drive and the locking of the movement of the cutting plate instead of means of toggle lever 7 and stop member 8 by means of other rigid parts, for example by means of pivoting cam, simple lever, slide, etc ..
    If the timber harvester, in the operating state " Klemmernter " is located, it is best to arrange so that the pivot axes of the pivot arms 2.1, 2.2 are aligned vertically. When the log harvester is in the operating state " loading gripper " is located, it is best to arrange so that the pivot axes of the pivot arms 2.1, 2.1 are aligned horizontally.
    The timber harvester shown in Fig. 1 is therefore to be connected via a further - not sketched - connection assembly with the boom of the mobile work machine, said connection assembly causes the pivoting of the timber harvesting device about an axis 12, which advantageously approximately normal to the mirror plane between the two pivot arms 2.1, 2.2 is aligned and positioned so that the center of gravity of the timber harvesting device is located on the same side of the axis 12 as the pivot arms 2.1, 2.2. This ensures that, if that
    Harvester hanging freely on the jib arm, the pivoting arms 2.1, 2.2 are oriented downwards, which corresponds to the operating state " loading gripper " fits well.
    To hang the timber harvester from the. Position in the position with (about] horizontal pivot arms 2.1, 2.2 to swing - as it fits well for the operating state "Klemmernter" - one can provide a hydraulic cylinder (not shown in Fig. 1) as a drive unit, ith its driving effect as well the drive for the extension of the cutting plate 5 is triggered by the fact that the grippers 2.1, 2.2 are opened to the maximum.
    The drive for pivoting the timber harvester from the horizontal to the hanging position - as it fits well for the operating state "loading gripper" - can be effected in the described arrangement of the pivot axis 12 by gravity. In order to allow the pivoting movement downwards only the required for the pivoting of the timber harvesting device hydraulic cylinder pressure to be switched. This Drucklosschalt can be triggered as well as the retraction of the cutting plate 5 by closing movement of the pivot arms 2.1, 2.2.
    It is advantageous to design the hydraulic control so that during the movement of the pivoting arms 2.1, 2.2 in the completely closed position, first the swinging down of the timber harvesting device about the axis 12 to the suspended position is triggered and only after that the retraction of the cutting plate 5. that the cutting plate 5 is optionally also operational when the timber harvester is in the hanging position. In order to select this option during operation of the timber harvester, the operating state " clamp harvester " from the swing arms just as far (or so long) to close, that although the swinging down of the timber harvesting device is triggered, but not yet the retraction of the cutting plate 5. This is especially useful, already cut, lying trees or shrubs through the timber harvester to be able to cut one more time.
    One possibility for realizing the sequential triggering of vertical pivoting of the timber harvester and F in driving the cutting plate 5 is indicated in FIG. 1 by the spring 11. The slider 10 of FIG. 1 is not directly connected to the Aususöseknopf of the valve 9, but it is slidably guided on a guide on the frame 1 and - in the absence of other forces - prevented by the used as a compression spring spring 11 from it to the Aususlöseknopf of the valve 9 to press. The spring 11. Is clamped between the frame 1 and a broadening of the slider 10. Depending on the stiffness of the spring 11 is adjustable with which force the Schwenksrrr 2.1 must press on the slider 10 to move it so much that it triggers the valve 9, which subsequently retracting {retraction to the rest position) the cutting plate 5 triggers. When the Srhwenkarm 2.1 encounters when closing the slider 10 increases by the action of the spring 11, the force with which the pivot arm against the slider 10 presses continuously, whereby the pressure in the driving hydraulic cylinder 4 increases continuously. The hydraulic control has a valve (not shown in FIG. 1) which, when exceeding a certain threshold of the pressure applied to the hydraulic cylinder 4 upwards performs a switching operation by which the Hinuntersehwenken the timber harvester is triggered in the hanging position, even before that Valve 9 has triggered the slide 10, which would cause the insertion of the cutting plate 5.
    If the person operating the timber harvester terminates the closing movement of the swivel arms after the transfer of the timber harvester from the horizontal to the hanging position has been initiated, but before the feeding of the cutting plate 5 has been initiated, the timber harvester enters that state of operation the timber harvester hangs on the cantilever arm with the cutting blade extended and thus can be used well for cutting through lying trunks. Usually, there are the Schwenkerme 2.1, 2.2 from each at least two partial arms, which are rigidly connected to each other like the tines of a fork and arranged parallel to each other at a distance from each other. In FIG. 1, only the upper part arm is shown; the lower arm or arms are covered by the obe -ren arms.) In this case, with respect to the axial alignment, the partial arms of the two pivot arms offset from each other so that the arms of the two pivot arms when closing the pivot arms interlock. Preferably, the plane of the cutting plate 5 lies between the planes of the uppermost and lowermost arms of the pivot arms 2.1, 2.2.
    权利要求:
    Claims (10)
    [1]
    Claims i. Holzgetegeirät, which is to be angepepepe on. Jib of a mobile work machine, hydraulically driven and optionally between the two functions "Ladegrei fer for trees and shrubs " and "Klepiernter for trees and Sträu-cher" uir.schaltbar, wherein - the timber harvesting device has a frame (1) and this guided hydraulically driven guided pivoting arms (2.1, 2.2) and one with respect to the frame (1) guided hydraulically driven movable cutting plate (5), wherein - the pivot arms (2.1, 2.2) during the operating state " loading gripper " form the gripper arms of the loading gripper, wherein - in the operating state " crimping " the cutting plate (5) is immovably held relative to the frame (1) and the pivot arms (2.1, 2.2) are able to press trees or bushes to be cut off against the cutting edge (5.1) of the cutting plate (5), characterized in that - The cutting plate (5) relative to the frame (1) is hydraulically driven between a retracted and an extended pitch, wherein the timber harvester at the retracted position the function " loading tongs " holds and in the extended position, the function "Klemmernter", wherein - in the extended position, the cutting plate (5) is held by a mechanical detent, however, to be moved back to the retracted position, wherein - moving the cutting plate from the retracted into the extended position can be triggered by the pivot arms (2.1, 2.2) are pivoted to the maximum open end position, wherein - the movement of the cutting plate (5) from the extended to the retracted position is triggered by the pivot arms (2.1, 2.2) in the be pivoted maximum closed end position.
    [2]
    2. Harvesting apparatus according to claim 1, characterized in that the cutting plate (5) on the frame (1) is pivotally mounted.
    [3]
    3. Harvesting apparatus according to claim 1 or 2, characterized in that the locking of the cutting plate (5) in the extended position by a pivotable lever (7) is formed with the movement of the cutting plate (5) movable in the extended position over a dead center is and is prevented from further movement of the dead center by a rigid stop member (8).
    [4]
    4. timber harvesting device according to one of claims 1 to 3, characterized in that opening pivotal movement of the pivot arms {2.1, 2.2) by a hydraulic cylinder (4) is driven and that the high pressure side of the driving hydraulic circuit with the interposition of a pressure follower valve to another hydraulic cylinder (6 ) is applied, through which the out-driving movement of the crop-cutting plate (5) is drivable.
    [5]
    5. Harvesting apparatus according to claim 4, characterized in that the opening movement of a Schwcnkarms (2.1, 2.2) can be limited by an adjustable stop member.
    [6]
    6. harvesting apparatus according to one of claims 1 to 5, characterized in that closing pivotal movement of the pivot arms (2.1, 2.2) by a hydraulic cylinder (4) is drivable and that the high pressure side of the closing movement driving hydraulic circuit with the interposition of a valve (9), whose flow position of the position of the pivot arm (2.1) is dependent on a further hydrau likzylinders (6) is applied, by which the retracting movement of the cutting plate (5) can be driven.
    [7]
    7. Harvesting apparatus according to one of claims 1 to 5, characterized in that an elastic spring with both the frame (1) and with the cutting plate (5) is connected and by the extending movement of the cutting plate (5) can be tensioned and by the retracting movement of the cutting plate (5) is at least partially relaxed.
    [8]
    8. Harvesting apparatus according to one of claims 1 to 7 with the exception of claims 4 and 5, characterized in that extending pivotal movement of the cutting plate (5) via a mechanical translation by opening pivotal movement of a pivot arm (2.1, 2.2) is driven.
    [9]
    9. timber harvester according to one of claims 1 to 8, characterized in that it is driven by a hydraulic cylinder relative to the Ausiegerarm the mobile work machine from a suspended position in which the pivot axes of the pivot arms (2.1, 2.2) is approximately horizontal in a position pivotable , in which the pivot axes of the pivot arms (2.1, 2.2) are approximately perpendicular, said pivoting is triggered by the pivot arms (2.1, 2.2) are opened maximum and wherein the reverse pivoting is triggered by the pivot arms (2.1, 2.2) closed maximum become.
    [10]
    10. Harvesting device according to claim 9, characterized in that for the triggering of the pivoting movement of the timber harvesting device in the position with approximately horizontally extending pivot axes of the pivot arms (2.1, 2.2) is below a larger öffnuncswinkels the pivot arms (2.1, 2.2) is set as for the Triggering the retraction of the cutting plate (5).
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    同族专利:
    公开号 | 公开日
    DE102015206027A1|2015-10-08|
    AT515434B1|2015-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2014154A1|2007-07-11|2009-01-14|Gebr. Kraaijeveld Machinebouw B.V.|Device for cutting down a tree trunk|
    DE1059232B|1957-06-25|1959-06-11|Andre Kamp|Machine for felling or processing wood|
    US3468352A|1968-01-10|1969-09-23|Beloit Corp|Tree shear and accumulator apparatus|
    US3785415A|1972-06-14|1974-01-15|Raymond Lee Organization Inc|Tree felling device|
    FI92454C|1993-06-30|1994-11-25|Toivo Tammisalo|Combined logging and harvesting machine|
    SE513257C2|1997-06-04|2000-08-07|Elmek Automation Ab|Tree harvesting unit|
    FI118716B|2004-04-16|2008-02-29|Ponsse Oyj|Arrangement at a tree handling device|
    AT11450U1|2009-11-23|2010-11-15|Dorfmeister Gmbh & Co Kg|DEVICE FOR HARVESTING STANDING WOOD GOODS|AT522916B1|2019-09-11|2021-10-15|Werner Steininger|Grapple|
    法律状态:
    2019-12-15| MM01| Lapse because of not paying annual fees|Effective date: 20190404 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA251/2014A|AT515434B1|2014-04-04|2014-04-04|Harvesting equipment|ATA251/2014A| AT515434B1|2014-04-04|2014-04-04|Harvesting equipment|
    DE102015206027.6A| DE102015206027A1|2014-04-04|2015-04-02|Harvesting equipment|
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