• 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:
    Apparatus for cutting heavy material to be cut, in particular trees, comprising a base part (2) and a rocker (1) pivotable relative to the base part (2) from an open position to a closed position, which is designed to be resilient and carries a cutting plate (5) the rocker (1) in its open position by an abutment (7) of the base part (2) is spaced, and in its closed position with the abutment (7) of the base part (2) a Aufnahtneraum (11) bounded for separated clippings of the Cutting plate (5) is crossed. According to the invention, the abutment (7) projects from the base part (7) in a cantilever manner and has a countershaft plate (6) crossing the receiving space (11), the counterblade plate (6) of the abutment (7) and the cutting plate (5) of Overlap rocker (1) in its closed position. With the aid of the measures provided according to the invention, the receiving space (11) of the cutting unit is enlarged so that even larger tree trunks can now be cut without having to enlarge the rocker (1).
    公开号:AT516719A4
    申请号:T50325/2015
    申请日:2015-04-23
    公开日:2016-08-15
    发明作者:
    申请人:Steininger Werner；
    IPC主号:
    专利说明:

    The invention relates to a device for cutting heavy material to be cut, in particular trees, comprising a base part and a relative to the base part of an opening position in a closed position pivotally mounted rocker, which is executed sickle-shaped and carries a cutting plate, the rocker in its open position of an abutment the base part is spaced, and in its closed position with the abutment of the base part delimits a receiving space for separated clippings, which is quenched by the cutting plate, according to the preamble of claim 1.
    In the wood industry and forestry, for example, large machines are used for cutting trees, which are provided with a boom arm with gripping devices, with the help of which they can comprise tree trunks. These gripping devices may for example be provided with a hydraulic system. In addition, a cutting mechanism is provided on the boom, which can be executed in the form of a relative to an abutment movable rocker with a cutting plate attached thereto and makes it possible to cut through the detected tree trunks. Subsequently, the boom can either put the tree aside or feed it to a machine for shredding or further processing.
    Conventional devices have here to an abutment for the crescent-shaped rocker, which is provided with at least one abutment edge, which is mostly serrated or fluted to improve the frictional engagement with the tree to be cut. In the open position of the rocker to be cut through a tree trunk of the generic device is included, and in the course of the transition to the closed position of the tree trunk is pressed by the cutting plate of the rocker to the abutment edge of the abutment until the cutting plate subsequently penetrates into the tree trunk and him severed. In the closed position of the rocker, the rocker and the abutment finally form a receiving space aufiiimmt the severed tree trunk.
    The clear cross-section of the receiving space in the closed position of the rocker limits the thickness of the tree trunks, which can be severed with the generic device and is essentially determined by the radius of the inner, concave side surface of the sickle-shaped rocker, since the abutment edge forms a stop for the tree trunk , Although it would be possible to make the rocker and the abutment correspondingly larger for cutting thicker logs, but this is the weight of the cutting and the force required for its manipulation is increased.
    There is thus the aim of the invention is to be able to cut larger tree trunks at substantially unchanged dimensions of rocker and abutment of the cutting unit.
    This object is achieved by the features of claim 1. Claim 1 relates to a device for cutting heavy clippings, in particular trees, comprising a base part and a rocker pivotally arranged relative to the base part from an open position into a closed position, which is executed crescent-shaped and carries a cutting plate, the rocker in its open position of an abutment of the base part is spaced, and in its closed position with the abutment of the base part delimits a receiving space for separated clippings, which is traversed by the cutting plate. According to the invention, it is proposed here that the abutment projects crescent-shaped from the base part and has a counter cutting plate crossing the receiving space, wherein the counter cutting plate of the abutment and the cutting plate of the rocker overlap in their closed position.
    The inventively provided counter cutting plate causes the tree trunk is now cut on the side of the abutment, rather than merely provide a stop in the form of the abutment edge. The tree trunk can thus also push on the side of the abutment on the counter cutting plate. Since according to the invention the abutment projects crescent-shaped from the base part of the receiving space of the cutting unit is increased, so now larger logs can be cut without having to increase the swingarm.
    However, the moving blades are not unproblematic in practice. The counter-cutting plate could be carried out approximately in such a way that in the closed position of the rocker abut the cutting edges of the cutting plate and the counter cutting plate, whereby a clean cut would be guaranteed. However, such an embodiment proves to be problematic when cutting heavy material to be cut, since the cutting plate and the counter cutting plate can easily bend due to the heavy loads in the course of the cutting process and the conclusion of the juxtaposed cutting is incomplete. In addition to an unclean cut, it may even come to an incomplete severing of the tree trunk. In addition, blunt cutting in the course of use increasingly from, so they must be resharpened. However, the usually cutting loops shortens the insert and the counter-cutting plate slightly, so that also the end of the adjacent cutting is affected. Therefore, it is further provided according to the invention that overlap the counter-cutting plate of the abutment and the cutting plate of the rocker in its closed position. In this way, a bending of the cutting plate and counter-cutting plate no longer affects the cutting process, and also resharpening can now be done without affecting the sectional image.
    In order to fix the tree trunk in the course of the cutting process, it is preferably proposed that an abutment element is arranged on the abutment, which has an abutment edge which runs transversely to the receiving space and is toothed and runs parallel to the cutting edge of the counter cutting plate. The tree trunk is thus prevented from sideways dodging during the cutting process by clawing the serrated or serrated abutment edge in the tree trunk.
    This abutment edge could be located above or below the contra tendon plate. Preferably, however, it is proposed that the abutment element is arranged on the concave side surface of the crescent-shaped abutment and comprises an abutment plate crossing the receiving space, which has the serrated abutment edge. The counter-cutting plate can be arranged on an outer surface of the base part, wherein its edge projects slightly beyond the abutment edge in the direction of the cutting plate. Thus, in the course of the cutting process, the cutting edge of the counter cutting plate penetrates into the tree trunk and is subsequently pushed onto the counter bearing plate.
    Preferably, the abutment element can be interchangeably attached to the abutment to easily wait or replace it. Such interchangeability is not given in conventional designs, since the abutment is formed with its abutment edge usually on the base part and therefore the entire base part would have to be replaced.
    The invention will be explained in more detail by means of exemplary embodiments with reference to the accompanying drawings. This show the
    1 is an axonometric view of a cutting unit according to the prior art in the opening position of the rocker,
    2 is a plan view of the cutting mechanism according to the prior art of FIG. 1 in the closed position of the rocker,
    3 is an axonometric view of a first embodiment of a cutting unit according to the invention without abutment edge in the opening position of the rocker,
    4 is a plan view of the inventive cutting unit according to FIG. 3 in the closed position of the rocker, FIG.
    Fig. 5 is an axonometric view of another embodiment of a cutting unit according to the invention with additional abutment edge in the opening position of the rocker, and the
    6 is an exploded view of the cutting unit according to the invention according to FIG. 5, FIG.
    Figures 1 and 2 show a cutting unit according to the prior art with a sickle-shaped rocker 1, which is pivotally mounted on a base part 2. The base part 2 is coupled approximately to the boom of a work machine and connected to a control cock of the machine via a corresponding hydraulic control the rocker 1 and the base 2 to kömien, the rocker 1 is pivotally mounted on a pivot bearing 12 on the base part 2 and can help a hydraulic adjusting device 13 (see FIG. 2) are pivoted about the pivot bearing 12. In a shortened position of the adjusting device 13, the rocker 1 is in its open position for receiving a tree trunk, and at extended position of the adjusting device 13, the rocker 1 is in its closed position for severing the recorded tree trunk.
    The rocker 1 bounds with its concave side surface 3a a receiving space 11. This receiving space 11 is traversed by a cutting plate 5 and serves to receive separated Schnittgut, such as a tree trunk. The cutting plate 5 has a rectilinear cutting edge 9a, which traverses the receiving space 11 for separated cut material. The attachment of the cutting plate 5 takes place on an outer surface of the rocker 1 via a first row of screws 8a, which follows an inner peripheral edge of the concave shaped side surface 3a, as well by means of a second row of screws 8b, which follows a convex outer contour of the rocker 1. The cutting plate 5 is attached fittingly on the outer surface of the rocker 1 and preferably includes flush with the convex outer contour of the rocker 1 from. In the end region of the crescent-shaped rocker 1 two threaded sleeves 4 for two of the screws of the second row of screws 8b are further formed on the base part 2.
    At the base part 2, the abutment 7 of the cutting plate 5 is arranged. The abutment 7 has in the illustrated embodiment, two protruding abutment edges 10, which are designed serrated or serrated to ensure a better grip of the tree trunk to be cut. The abutment 7 is formed on the base part 2.
    Upon actuation of the adjusting device 13, the rocker 1 is pivoted about the pivot bearing 12 and the cutting plate 5 moves to the abutment edges 10 of the abutment 7 to. An existing between the rocker 1 and the abutment 7 tree trunk is thereby increasingly cut using the cutting plate 5, wherein the tree trunk is supported on the abutment edges 10. As soon as the cutting edge 9a of the
    Cutting insert 5 occurs between the abutment edges 10, the tree trunk is completely severed and is absorbed by the receiving space 11 between the rocker 1 in its closed position and the abutment 7, wherein it rests on the cutting plate 5.
    As can be seen in particular in FIG. 2, the clear cross-section of the receiving space 11 in the closed position of the rocker 1 limits the thickness of the tree trunks, which can be severed with the cutting unit shown. This clear cross section is determined essentially by the radius of the inner, concave side surface 3a of the sickle-shaped rocker 1, since the abutment edges 10 form a stop for the tree trunk.
    Therefore, according to the invention, an embodiment according to FIGS. 3-6 is proposed. In this case, the abutment 7, as can be seen in particular in FIG. 4, is designed such that it protrudes in a sickle-shaped manner from the base part 2 and has a counter cutting plate 6 crossing the receiving space 11 with a cutting edge 9b oriented in the direction of the cutting plate 5. The counter-cutting plate 6 is comparable to the cutting plate 5 on an outer surface of the abutment 7 of the base part 2 via a first row of screws 8a, which follows an inner peripheral edge of the concave side surface 3b of the crescent-shaped abutment 7, and by means of a second row of screws 8b, the convex outer contour of the abutment 7 follows, attached. The counter-cutting plate 6 is attached fittingly on the outer surface of the abutment 7 and preferably closes flush with the convex outer contour of the abutment 7.
    Upon actuation of the adjusting device 13 (see FIG. 4), the rocker 1 is in turn pivoted about the pivot bearing 12 and the cutting plate 5 moves toward the counter-cutting plate 6 of the abutment 7. An existing between the rocker 1 and the abutment 7 tree trunk is thereby increasingly cut using the cutting plate 5, but the tree trunk is now cut on the side of the abutment 7 using the counter cutting plate 6. The tree trunk can thus also slide on the side of the abutment 7 on the counter-cutting plate 6. Since, according to the invention, the abutment 7 projects from the base part 2 in the shape of a sickle, the receiving space 11 of the cutting unit is enlarged so that even larger tree trunks can now be cut without the rocker 1 having to be enlarged.
    The counter-cutting plate 6 of the abutment 7 and the cutting plate 5 of the rocker 1 are designed so that they overlap in the closed position of the rocker 1. The overlapping region is also referred to as a protrusion and causes in particular that a slight bending of the cutting plate 5 and counter-cutting plate 6 does not affect the cutting process mine and re-sharpening of the cutting edges 9 can be done easily without affecting the sectional image.
    Figures 5 and 6 show an alternative embodiment variant of a cutting unit according to the invention, in which the abutment 7, an abutment member 14 is arranged, which has a receiving space 11 crossing and toothed running abutment edge 10 which is parallel to the cutting edge 9b of the counter cutting plate 6. The tree trunk is thus prevented from sideways dodging during the cutting process by clawing the serrated or ribbed abutment edge 10 in the tree trunk. The abutment element 14 is arranged on the concave side surface 3b of the sickle-shaped abutment 7 and comprises an abutment plate 15 which crosses the receiving space 11 and has the toothed abutment edge 10 (see in particular FIG. 6). The abutment edge 10 is slightly surmounted by the cutting edge 9b of the counter-cutting plate 6. Thus, in the course of the cutting process, the cutting edge 9b of the counter cutting plate 6 penetrates into the tree trunk and is subsequently pushed onto the abutment plate 15.
    Preferably, the abutment member 14 may be interchangeably attached to the abutment 7 to easily wait or replace it. Such interchangeability is not given in conventional Ausfühlungen, since the abutment 7 as shown in Fig. 1 can be seen formed with its abutment edge 10 usually on the base part 2 and therefore the entire base part 2 would have to be replaced.
    By means of the measures provided according to the invention, the receiving space 11 of the cutting unit is increased so that now even larger tree trunks can be cut without having to increase the rocker 1.
    REFERENCE LIST 1 rocker 2 base 3 a concave side surface of rocker 1 3b concave side surface of abutment 7 4 threaded sleeve 5 cutting plate 6 counter cutting plate 7 abutment 8a first row of screws 8b second row of screws 9a cutting edge 5 cutting edge 9b cutting edge counter cutting edge 6 10 abutment edge 11 receiving space 12 pivot bearing 13 adjusting device 14 abutment element 15 abutment plate
    权利要求:
    Claims (5)
    [1]
    1. A device for cutting heavy clippings, in particular trees, comprising a base part (2) and a relative to the base part (2) from an open position into a closed position pivotally mounted rocker (1), which is executed sickle-shaped and carries a cutting plate (5) , wherein the rocker (1) in its open position by an abutment (7) of the base part (2) is spaced, and in its closed position with the abutment (7) of the base part (2) delimits a receiving space (11) for separated clippings, the is traversed by the cutting plate (5), characterized in that the abutment (7) projects crescent-shaped from the base part (7) and has a counter cutting plate (6) crossing the receiving space (11), the counter cutting plate (6) of the abutment (7 ) and the cutting plate (5) of the rocker (1) overlap in their closed position.
    [2]
    2. Apparatus according to claim 1, characterized in that on the abutment (7) an abutment element (14) is arranged, which has a receiving space (11) crossing and toothed ausgefuhrte abutment edge (10) parallel to the cutting edge of the counter cutting plate (6). runs.
    [3]
    3. A device according to claim 2, characterized in that the abutment element (14) on the concave side surface (3b) of the crescent-shaped abutment (7) is arranged and a receiving space (11) crossing abutment plate (15), which executed the toothed Abutment edge (10).
    [4]
    4. Apparatus according to claim 3, characterized in that the abutment element (14) is replaceably mounted on the abutment (7).
    [5]
    5. Work machine with a boom and a device attached to the boom arm according to one of claims 1 to 4.
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    同族专利:
    公开号 | 公开日
    AT516719B1|2016-08-15|
    EP3085224B1|2018-03-07|
    EP3085224A1|2016-10-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5044409A|1989-12-08|1991-09-03|Hamilton Douglas D|Force matching tree shear|
    US3183954A|1963-07-10|1965-05-18|Beloit Corp|Shears|
    US20090065094A1|2007-09-10|2009-03-12|Arrow Forklift Parts, Llc|Shear linkage device|CA2941877A1|2016-09-14|2018-03-14|Robert Lachance|Tree shear head assembly|
    SI25693A|2018-08-24|2020-02-28|PIĹ EK - VITLI KRPAN, d.o.o.|Cutting head for bagger or forestry machinery|
    FI129294B|2020-04-06|2021-11-15|Jakite Oy|An energy wood grapple and a method for assembling an energy wood grapple|
    CN112136641A|2020-09-17|2020-12-29|梅家亮|Municipal garden felling device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50325/2015A|AT516719B1|2015-04-23|2015-04-23|Device for cutting heavy clippings|ATA50325/2015A| AT516719B1|2015-04-23|2015-04-23|Device for cutting heavy clippings|
    EP16166302.6A| EP3085224B1|2015-04-23|2016-04-21|Device for cutting heavy lumber|
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