WO2024038151A1 - Dispositif de montage pour une flèche d'une pelle excavatrice - Google Patents

Dispositif de montage pour une flèche d'une pelle excavatrice Download PDF

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Publication number
WO2024038151A1
WO2024038151A1 PCT/EP2023/072704 EP2023072704W WO2024038151A1 WO 2024038151 A1 WO2024038151 A1 WO 2024038151A1 EP 2023072704 W EP2023072704 W EP 2023072704W WO 2024038151 A1 WO2024038151 A1 WO 2024038151A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
attachment
bearing point
drive housing
connection
Prior art date
Application number
PCT/EP2023/072704
Other languages
German (de)
English (en)
Inventor
Felix HORNSTEIN
Original Assignee
Kiesel Technology Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiesel Technology Gmbh filed Critical Kiesel Technology Gmbh
Publication of WO2024038151A1 publication Critical patent/WO2024038151A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators

Definitions

  • the invention relates to an attachment device for an excavator arm.
  • an excavator which accommodates a mounting device at a free end of the stick, which is pivotally connected to a coupling device of the mounting device about a mounting axis on the stick.
  • a swivel drive is provided on the coupling device, which in turn has a coupling for receiving a working device opposite the coupling device.
  • the attachment device comprises a rotating device with a rotary drive, through which the coupling can be rotated about an axis of rotation relative to a drive housing of the rotating device.
  • a further pivot drive is provided on an upper side of the drive housing, through which the entire rotating device can be pivoted about an axis perpendicular to the axis of rotation relative to the coupling device.
  • the coupling device has an attachment bearing point and a coupling bearing point, both of which lie above the further swivel drive. This results in a large overall height of the attachment device between the attachment bearing point of the coupling device and the coupling. This impairs the pivoting mobility of the attachment to the handle.
  • the invention is based on the object of creating an attachment device for an excavator arm, through which an attachment with a larger swivel range can be controlled.
  • an attachment device in which a plane of rotation is formed between a drive housing of the rotating device and the coupling and a fictitious connection plane for the coupling device fixedly arranged thereon is formed by the at least partially formed top surface of the drive housing, the attachment bearing point of the coupling device being in the fictitious connection plane of the at least partially formed top surface of the drive housing or in the plane of rotation or in an area lies between the connection level and the rotation plane and the coupling bearing point of the coupling device is positioned above the connection level.
  • This arrangement allows the axis of rotation, about which the attachment device can be pivoted on the handle, to be lowered in the direction of the plane of rotation of the attachment device.
  • the axis of rotation of the attachment device lies in the axis of the attachment bearing point, whereby the attachment device is pivotally fixed to the attachment axis of the handle.
  • the coupling device is preferably provided on the drive housing in a rotationally fixed and/or non-pivoting manner. This allows direct power transmission.
  • the coupling bearing point of the coupling device is positioned in an area above the rotary feedthrough to the drive housing. This allows a central introduction of force into the coupling bearing point via the swivel kinematics.
  • the arrangement of the attachment bearing point and coupling bearing point can enable improved leverage ratios and thus increased power transmission to the implement.
  • the coupling device is preferably provided in a detachable manner on the fictitious connection level or on the drive housing.
  • the coupling device can also be connected in one piece to the connection level of the drive housing.
  • the coupling device preferably has two cheeks, which are detachably provided on the at least partially extending top surface of the drive housing. This means that the cheeks can also be adjusted depending on the handle or the design of the handle end in order to achieve a large pivoting range of the attachment. Alternatively, it can be provided that the cheeks of the coupling device are integrally formed onto the drive housing. This can make cost-reduced production possible. In particular, this can result in weight savings. Furthermore, it is preferably provided that the at least two cheeks of the coupling device are connected to one another by at least one connection plate. This allows the cheeks and the connection plates to be detachably connected to the rotating device as a unit. In particular, it is provided that the at least one connection plate can be connected to the rotating device by a screw connection. This provides flexibility in that the coupling device is provided interchangeably on the rotating device and thus allows adaptation to handles that differ from one another by exchanging the coupling device.
  • the drive housing of the rotating device advantageously has at least one slope or flattened area between the at least partially formed top surface and the end face of the drive housing, to which the mounting bearing point is assigned. This allows the mounting bearing point to be moved closer towards the drive housing. The distance between the axis of rotation of the mounting bearing point of the coupling device and the axis of rotation of the rotating device, about which the coupling is rotatably mounted to the drive housing, can thereby be further reduced.
  • the at least one slope is inclined at an angle between 15° to 75° relative to the top surface in the direction of the end face of the rotating device.
  • only one slope is provided between the top surface and the end face of the rotating device. This can be inclined at an angle of 45° to the top surface.
  • two or more slopes arranged in a row can also be provided. These can be arranged in a row to one another at the same or different angles.
  • the at least one bevel shortens a distance between the axis of the mounting bearing point in the direction of the rotation axis of the rotating device. This allows improved Power relationships are created.
  • the at least one bevel can also ensure that the shear forces can be reduced to a screw connection for the coupling device on the rotating device. This allows screw cross sections to be reduced.
  • the at least one connection plate of the coupling device is connected to the slope or rests on the slope and the at least one further connection plate of the coupling device is connected to the top surface of the rotating device.
  • the mounting bearing point of the coupling device is assigned to the slope or the end face of the rotating device. This assignment also depends on the positioning of the attachment bearing point between the connection plane and the rotation plane. This assignment can also depend on the size of the slope, since it can extend from the top surface at least partially or completely towards the end face of the rotating device.
  • the attachment bearing point and the bearing point of the coupling device are arranged at an angle ⁇ to the attachment device, which is formed by two fictitious straight lines.
  • the first or one fictitious straight line extends through the attachment bearing point and the coupling bearing point and the second or the other fictitious straight line extends in a plane of rotation or parallel to a plane of rotation of the rotating device, which is offset in the direction of the top surface. Due to this offset arrangement of the coupling bearing point and the attachment bearing point of the coupling device, the attachment bearing point can be offset in the direction of the plane of rotation of the rotating device, resulting in a reduction in the structural height the attachment to the handle is possible. As a result, in particular a swivel angle range of the attachment device towards the underside of the handle can be increased.
  • the fictitious straight lines of the attachment device are provided at an angle ⁇ of 15° to 45°, preferably 25° to 35°. This in turn enables an advantageous connection of the attachment device to both a straight and a cranked handle section of the handle.
  • a rotary feedthrough is provided in the drive housing, which has a stator which is rotationally fixed on the drive housing and a rotor which is rotatable relative to the stator and which is connected to a coupling and which has at least one connection, preferably three connections, in the coupling is connected.
  • a connection is advantageously provided as a supply line for supplying a working fluid.
  • Another connection is connected to a supply line for discharging the working fluid; a third connection can be provided for a leakage fluid.
  • Figure 1 shows a schematic side view of an excavator with a stick, an attachment and a working device
  • Figure 2 is a schematic side view of a stick for an excavator with a cranked stick section
  • FIG 3 is a perspective view of the handle according to Figure 2
  • FIG 4 is a perspective view of a mounting device for connection to the handle according to Figure 2
  • FIG 5 is a schematic side view of the attachment device according to Figure 4,
  • Figure 6 is a schematic sectional view of the attachment device along line IV-IV in Figure 4,
  • FIG 7 is a perspective view of the handle according to Figure 2 with a mounting device according to Figure 4,
  • FIG. 8 shows a schematic side view of the handle according to FIG. 3 with an attachment device according to FIG. 4 in a first working position
  • FIG. 9 shows a schematic side view of the arrangement according to FIG. 7 in a further working position
  • Figure 10 is a perspective view of an alternative embodiment of the handle to Figure 3,
  • FIG. 11 shows a perspective view of the handle according to FIG. 10 with a mounting device according to FIG. 4 in a working position
  • Figure 12 is a perspective view of an alternative embodiment of the handle to Figure 3, 13 shows a perspective view of the handle according to FIG. 12 with a mounting device according to FIG. 4 in a working position,
  • Figure 14 is a perspective view of an alternative embodiment of the handle to Figure 12,
  • Figure 15 is a perspective view of the handle according to Figure 14 with a mounting device according to Figure 4 in a working position
  • Figure 16 is a schematic side view of an excavator with an alternative working device to Figure 1.
  • FIG. 1 A schematic side view of an excavator 11 is shown in FIG.
  • the excavator 11 includes a basic machine 13 with a boom 12, which is articulated to one another at the end with a stick 14.
  • the boom 12 is moved up and down with a lifting cylinder 19.
  • the boom 12 comprises at least one stick cylinder 18 for controlling a pivoting movement of the stick 14.
  • At least one pressure cylinder 16 is provided on the stick 14, through which an attachment device 21 provided on the stick 14 can be controlled.
  • the attachment device 21 is pivotally mounted in a mounting axis 17.
  • This attachment 21 can include a rotating device 22 with a rotary drive 24 and a clutch 23, in particular a quick-change clutch.
  • the rotating device 22 includes a drive housing 66.
  • the clutch can be rotated relative to the drive housing 66 in an axis of rotation 26 by the rotary drive 24.
  • An interchangeable implement 25 is provided on the coupling 23.
  • a pivoting kinematics 27 is provided. This comprises a deflector 28, which is connected to the handle 14 in an articulated manner at one end on a deflector axis 29. Furthermore, the pivot kinematics 27 includes a coupling 31, which is connected at one end to the deflector 28 via a common pivot axis 35. At the opposite end comes the Coupling 31 to a coupling device 33.
  • This coupling device 33 is a component of the attachment device 21 or is mounted on the attachment device 21.
  • the drive housing 66 preferably has a top surface 67 which extends at least in sections and on which the coupling device 33 is provided.
  • the pressure cylinder 16 in particular a piston rod of the pressure cylinder 16, engages on the pivot axis 35 of the pivot kinematics 27.
  • FIG. Figure 3 shows a perspective view of the handle 14 according to Figure 2.
  • the handle 14 has a main handle section 50. At one end of the main arm section 50 there is a arm bearing point 41, through which the arm 14 is mounted in an articulated manner to the boom arm 12. Adjacent to this is an arm cylinder axis 42, in which the arm cylinder 18 of the boom arm 12 engages. An underside 43, which is designed as a lower flange, extends from the handle bearing point 41 to the front handle end 48. Opposite, the handle 14 includes a top 45, which is designed as a top flange. On the top 45 there is an impression cylinder bearing 46 for receiving the impression cylinder 16. The top 45 and the bottom 43 are aligned at an acute angle to one another in the direction of the deflector axis 29.
  • the stem 14 has a cranked stem section 51.
  • This cranked handle section 51 is provided at the handle end 48.
  • the handle 14 includes a main handle section 50 with the handle bearing point 41 and 42 and the cranked handle section 51.
  • the mounting axis 17 is provided in the cranked handle section 51.
  • the cranked handle section 51 extends from the deflector axis 29 towards the top 45 of the handle 14.
  • the offset handle section 51 is cranked upwards at an angle a of, for example, 30° to the bottom 43 of the handle 14.
  • the angle for the bend of the handle section 21 is determined by two fictitious straight lines 52, 53.
  • Straight line 52 extends through the mounting axis 17 and deflection axis 29 of the cranked stem section 51.
  • the straight line 52 extends through the deflection axis 29 and preferably runs parallel to the underside 43 of the stem 14.
  • the straight line 53 can also extend through the deflection axis 29 and the stem bearing point 41.
  • the length of the cranked handle section 51 can be determined from the angle a and a height HS between the mounting axis 17 and the deflector axis 29.
  • the distance between the mounting axis 17 and the deflector axis 29 includes the height HS.
  • the cranked handle section 51 is the same width as the main section 50 of the handle 14. With very long handles 14, the main handle section 50 can taper to the beheaded handle section 51.
  • the width of the cranked stem section 51 and the distance between the cheeks 36 coupling device 33 are adapted to one another.
  • FIG. Figure 5 shows a schematic side view of the attachment device 21 according to Figure 4.
  • the coupling device 33 consists of two cheeks 36 arranged at a distance from one another.
  • the cheeks 36 can be connected to at least one connection plate 34 which extends between the cheeks 36.
  • the at least one connection plate 34 can rest on an upper side of the rotating device 22 and can preferably be releasably attached thereto.
  • a connection level 65 is formed between the top of the rotating device 22, to which the coupling device 33 is attached, and the coupling device 33, in particular the connection plate 34 of the coupling device 33.
  • Each cheek 36 includes a coupling bearing point 37 and an attachment bearing point 38.
  • the coupling bearing point 37 and the attachment bearing point 38 are arranged offset from one another at the height HK.
  • the attachment bearing point 38 is recessed relative to the coupling bearing point 37.
  • the attachment bearing point 38 of the coupling device 33 is located at for example in the connection plane 65.
  • the mounting bearing point 38 can also be offset in the direction of a plane of rotation 39 of the rotating device 22 or lie in this plane of rotation 39.
  • the mounting bearing point 38 is offset laterally outwards relative to the mounting device 21, in particular the rotating device 22, or is assigned to an end face of the rotating device 22.
  • the coupling bearing point 37 and the add-on bearing point 38 are arranged at an angle ⁇ to the plane of rotation 39, which is determined by two fictitious straight lines 56, 57.
  • the fictitious straight line 56 extends through the coupling bearing point 37 and the add-on bearing point 38.
  • the fictitious straight line 57 extends through the plane of rotation 39 or is aligned parallel to it. This can also lie in the at least partially formed top surface 67 of the drive housing 66 of the rotating device 22.
  • the mounting bearing point 38 can lie on the straight line 57 or lower in the direction of the plane of rotation 39, preferably within a height formed by the straight line 57 and the plane of rotation 39.
  • the angle ⁇ between the straight lines 56, 57 is preferably provided in a range from 15° to 60°. In particular, an angle ⁇ of 30° is provided. This angle ⁇ preferably corresponds to the angle a.
  • FIG. 6 A schematic sectional view along line VI-VI according to FIG. 4 is shown in FIG. 6.
  • the rotating device 22 has an incline 69 between the top or the connection level 65 and an end face 81 of the rotating device 22.
  • This slope 69 can, for example, be inclined at an angle of 45° to the connection plane 65. Deviating from this, the slope 69 can also be provided at an angle to the connection plane 85.
  • This slope 69 makes it possible in particular for the attachment bearing point 38 of the cheeks 36 to be moved closer to the rotating device 22 and/or downwards relative to the connection level 65 on the one hand.
  • This arrangement has the particular advantage that a reduced introduction of force from the handle 14 into the attachment device 21 is made possible, whereby shear forces acting on the coupling device 33 of the attachment device 21 during operation can be reduced.
  • the coupling device 33 is preferably connected to the rotating device 22 by a screw connection 83.
  • one or more connection plates 34 rest on the top of the rotating device 22 and on the slope 82 of the rotating device 22 and are fixed in particular by the screw connection 83.
  • This detachable arrangement of the coupling device 33 to the rotary device 22 also enables increased flexibility through a possible exchange of the coupling device 33 to the rotary drive 24 and the coupling 23.
  • the kinematics of the handle 14 and the attachment device 21 are improved to the extent that an overloading height and /or a breakaway force can be increased. This is particularly the case when the mounting bearing point 38 lies in the plane of rotation 39.
  • the attachment device 21 according to Figures 4 to 6 also has the advantage that a reduction in the number of hydraulic connections for controlling a working device 25 is made possible by integrating the rotary drive 24 and the clutch 23.
  • the number of connections in the coupling 23 can be reduced from five connections to three connections. Two of the connections serve a main function, namely an inlet and a return of the working fluid, in particular hydraulic oil.
  • the third connection is intended for a so-called leakage oil.
  • the connection or integration of the clutch 23 into the rotary drive 24 enables the hydraulic connections required for control of the rotary drive to be provided within the rotary drive 24 and/or the clutch 23 and to be permanently connected to one another.
  • the fork-shaped connection 20 is between the pivoting Kinematics 27 and the attachment device 21 are provided.
  • the pivoting kinematics 27 includes two deflectors 28, which are each positioned on an outside of the handle section 51 and are mounted in the deflector axis 29. Opposite, these deflectors 28 engage the pivot axis 35 of the pivot kinematics 27.
  • the coupling 31 of the swivel kinematics 27 is fork-shaped.
  • the paddock 31 has two coupling arms 64 pointing towards the attachment device 21.
  • the coupling 31 includes, for example, a coupling stem 65.
  • This coupling stem 65 is narrower in width than the distance between the two coupling arms 64.
  • the coupling stem 65 can include a recess so that a piston rod of the pressure cylinder 16 can be positioned in between and on the Pivot axis 35 attacks.
  • the height HK of the coupling bearing point 37 and the attachment bearing point 38 of the coupling device 33 advantageously corresponds to the height HS on the bent stem section 51, which is formed by the distance between the attachment axis 17 and the deflector axis 29.
  • the cranked stem section 51 is positioned between the cheeks 36.
  • the mounting axis 17 of the cranked handle section 51 is aligned with the mounting bearing point 38, so that they are pivotally connected to one another by a bearing pin.
  • FIG 8 shows a schematic side view of the handle 14 with the attachment device 21 in a first pivoting or working position.
  • the handle 14 with the attachment device 21 is shown in a further pivoting or working position, different from the arrangement in Figure 7.
  • the handle 14 with the cranked handle section 51 makes it possible for the attachment device 21 to be pivoted relative to the fictitious straight line 53 at a pivot angle A of up to 60° in the direction of the underside 43 of the Stem 14 is pivotable. Due to the offset mounting bearing point 38 to the coupling bearing point 37 and the cranked stem section 51, the rotating device 22 can be positioned almost parallel or parallel to the fictitious straight line 52 with respect to its axis of rotation.
  • Figure 9 shows the further pivoting position of the attachment device 21 in the opposite direction to that in Figure 6.
  • a pivot angle B of up to 160 ° can be assumed.
  • This pivoting position can be assumed by the cranked handle section 51. This results in a pivot angle of the attachment device 21 to the cranked handle section 51 of up to 220°.
  • FIG. 10 An alternative embodiment of the handle 14 is shown in Figure 10.
  • the handle section 51 is not aligned with the main handle section 50 in a cranked manner.
  • Such a stem 14 is referred to as a straight stem. It is provided that an upper and/or lower side of the handle section 51 and the main handle section 50 lie in a common plane. Otherwise, the comments on the aforementioned Article 14 apply.
  • FIG. 11 shows a perspective view of the handle 14 according to FIG. 10 and the attachment device 21 according to FIG. 4.
  • the control of a pivoting movement of the attachment device 21 to the handle 14 takes place with a pivoting kinematics 27, which corresponds to the embodiment according to FIG. A fork-shaped paddock 31 is used.
  • This embodiment therefore includes a fork-shaped connection 20 between the pivoting kinematics 27 and the attachment device 21.
  • the handle 14 has a cranked handle section 51 to the main handle section 50. Deviating from the embodiment according to FIGS. 2 and 3, the cranked stem section 51 according to FIG. 12 is fork-shaped.
  • the cranked stem section 51 includes two fork arms 61 that are spaced apart from one another.
  • the deflector axle 29 and the mounting axle 17 are provided in each fork arm 61.
  • the distance between the fork arms 61 in the area in which the deflection axis 29 is provided is preferably smaller than in the section facing the free end of the handle 48 and in which the mounting axis 17 lies. This has the advantage that the conditions for connecting the attachment device 21 to the handle 14 are analogous or the same as in the embodiment according to the handle in FIGS. 2 and 3 and in FIG. 9.
  • the pivoting kinematics 27 has a coupling 31, which is, for example, rod-shaped.
  • the coupling 31 can also be designed as a fork-shaped coupling 31 with two coupling arms 64.
  • the coupling 31 can preferably be designed as a welded construction in which two rod-shaped sheets are connected to a web, preferably also made of sheet metal, the rod-shaped sheets engaging both on the pivot axis 35 and on the coupling bearing point 37.
  • the welded construction can also be designed as a cast construction.
  • FIG. 11 An alternative embodiment of the handle 15 to FIG. 11 is shown in FIG. This embodiment differs from that in Figure 11 in that the handle section 51 is formed straight to the main handle section 50. An offset of the handle section 51 is not provided. Otherwise, the comments on Figure 12 apply.
  • FIG. 15 shows a perspective view of the handle 14 according to FIG. 14 and the attachment device 21 according to FIG. 4 in a working position.
  • the pivoting kinematics 27 is designed analogously to that in Figure 12.
  • a fork-shaped coupling 31 can also be provided as an alternative in this regard.
  • the working device 25 according to FIG. 16 is, for example, a puller bar.
  • the excavator 11 can be used as a so-called grader.
  • graders which are also called levelers, earth planes or road planes, enable the creation of large flat surfaces in road construction, gardening, landscaping or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

L'invention concerne un dispositif de montage conçu pour une flèche (14) d'une pelle excavatrice (11), comprenant un dispositif de rotation (22) qui comprend un carter d'entraînement (66) présentant une surface de recouvrement (67) supérieure, réalisée au moins par parties, un dispositif d'entraînement rotatif (24) qui permet d'entraîner en rotation, autour d'un axe de rotation (26), un dispositif d'accouplement (23) par rapport au carter d'entraînement (66), au moins un système d'accouplement (33) qui est disposé au moins partiellement sur la surface de recouvrement (67) supérieure du carter d'entraînement (66) et qui comprend un point de support de montage (38) pour le raccordement à la flèche (14) et un point de support d'accouplement (37) pour le raccordement à un système cinématique de pivotement (27) disposé sur la flèche (14), un plan de rotation (39) étant formé entre le carter d'entraînement (66) et le dispositif accouplement (23), un plan de raccordement (65) fictif pour le système d'accouplement (33) étant formé par la surface de recouvrement (67) du carter d'entraînement (66) réalisée au moins par parties, et le point de support de montage (38) du système d'accouplement (33) étant disposé dans le plan de raccordement (65) fictif ou dans le plan de rotation (39) ou entre le plan de raccordement (65) fictif et le plan de rotation (39).
PCT/EP2023/072704 2022-08-18 2023-08-17 Dispositif de montage pour une flèche d'une pelle excavatrice WO2024038151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022120932.6A DE102022120932A1 (de) 2022-08-18 2022-08-18 Anbauvorrichtung für einen Stiel eines Baggers
DE102022120932.6 2022-08-18

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WO2024038151A1 true WO2024038151A1 (fr) 2024-02-22

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WO (1) WO2024038151A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011100482U1 (de) 2011-05-10 2012-08-13 Kinshofer Gmbh Drehschwenkantrieb für Anbauwerkzeuge

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JPS6299502A (ja) 1985-10-23 1987-05-09 株式会社水谷組 鉄道軌道の道床のバラスト除去用、土壌の溝堀り用、整地のための抜根等を含む土地整地用及び宅地造成のための法面の段切り用等の多目的土木機装置
US5114301A (en) 1991-01-10 1992-05-19 Allied Gator, Inc. Rotator for backhoe equipment
JP2001205195A (ja) 2000-01-31 2001-07-31 Komaki Kogyo Kk バックホー用トロンメル
US7832130B2 (en) 2006-10-06 2010-11-16 The Stanley Works Multiple mounting bracket for a mobile processor attachment mounted on a hydraulic excavator
FI121755B (fi) 2009-01-19 2011-03-31 Kinshofer Gmbh Työkalun kiinnitysjärjestely
DE102010027895A1 (de) 2010-04-17 2011-10-20 Holp Gmbh Drehvorrichtung für ein Anbaugerät an einer Arbeitsmaschine
DE102020121740A1 (de) 2020-08-19 2022-02-24 Holp Gmbh Drehvorrichtung

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE202011100482U1 (de) 2011-05-10 2012-08-13 Kinshofer Gmbh Drehschwenkantrieb für Anbauwerkzeuge

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