EP3683362B1 - Fraise pour parois moulées - Google Patents

Fraise pour parois moulées Download PDF

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Publication number
EP3683362B1
EP3683362B1 EP20150905.6A EP20150905A EP3683362B1 EP 3683362 B1 EP3683362 B1 EP 3683362B1 EP 20150905 A EP20150905 A EP 20150905A EP 3683362 B1 EP3683362 B1 EP 3683362B1
Authority
EP
European Patent Office
Prior art keywords
drive unit
frame
motor
unit
motor unit
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP20150905.6A
Other languages
German (de)
English (en)
Other versions
EP3683362A3 (fr
EP3683362A2 (fr
Inventor
Tobias Griesemer
Sebastian Wedl
Maria Knünz
Adrian Fend
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Werk Nenzing GmbH
Original Assignee
Liebherr Werk Nenzing 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 Liebherr Werk Nenzing GmbH filed Critical Liebherr Werk Nenzing GmbH
Priority to EP21162496.0A priority Critical patent/EP3851586B1/fr
Publication of EP3683362A2 publication Critical patent/EP3683362A2/fr
Publication of EP3683362A3 publication Critical patent/EP3683362A3/fr
Application granted granted Critical
Publication of EP3683362B1 publication Critical patent/EP3683362B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/246—Digging wheels; Digging elements of wheels; Drives for wheels drives
    • 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
    • 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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
    • E02F3/475—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets for making foundation slots
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids

Definitions

  • the present invention relates to a trench cutter according to the preamble of claim 1.
  • Trench wall cutters are available in many variants from the prior art, for example from the publication EP 1 666 671 A , known.
  • a wide variety of drive methods can be used for the milling tools of such trench wall cutters, which are used to break up the soil material when producing the soil trench.
  • one or more motors are used for the rotary drive of several cutting wheels via corresponding gears.
  • the object of the present invention is to provide a trench cutter with a drive unit that can be assembled and disassembled quickly and easily.
  • this object is achieved by a trench wall cutter having the features of claim 1.
  • the invention relates to a trench wall cutter for producing vertical trenches in the ground, which can be connected to a carrier device, comprising a frame, a motor unit and a drive unit which can be detachably connected to the frame.
  • the drive unit comprises a support structure, at least one gear arranged on the support structure, and at least one milling tool, which is connected to the gear and can be driven by the motor unit, for crushing soil material.
  • the motor unit can be releasably connected to the drive unit, the frame and the drive unit each having guide means which are designed such that the drive unit, in relation to a longitudinal axis of the frame, when the connection to the motor unit is released, can be inserted laterally into the frame. and can be pushed out of this.
  • the drive unit which is separate from the motor unit, can be pushed in and out from the side, which brings considerable advantages when carrying out maintenance work and enables the components to be exchanged in just a few steps.
  • the motor unit which is not subject to wear to the same extent as the gears, can remain in the installed position in or on the frame during assembly or maintenance work, while only the drive unit has to be dismantled or assembled. In particular, the assembly times are when entering and leaving Removal is therefore significantly shorter than with conventional trench cutters.
  • the simplified assembly and disassembly process also increases safety in the workplace. Potentially occurring errors in the exchange process are minimized by the small scope and the simple design of the overall process.
  • the drive unit has a motor mount to which the motor unit can be releasably connected and which is preferably arranged on the upper side of the support structure.
  • the engine mount can have mechanical connections as well as connections for hydraulic and/or electrical lines. These can be designed as a quick coupling or multi-coupling.
  • the trench wall cutter can comprise a plurality of drive units, each with an assigned motor unit.
  • the frame has a recess on at least one side, preferably on two opposite sides, through which the motor mount can be pushed when the drive unit is displaced using the guide means.
  • the motor mount In the assembled state, the motor mount therefore protrudes into the frame of the trench wall cutter and, after separation from the motor unit, can be displaced relative to the frame and pushed through the recess(es).
  • the recess thus has geometric dimensions that exceed those of the engine mount.
  • the guide means of the frame and the drive unit are designed as chamfers, the beveled surfaces of which contact one another in the connected state. During the lateral displacement of the drive unit relative to the frame, the beveled surfaces slide past one another. In this case, there can be freedom of movement perpendicular to the direction of insertion and removal. For example, when moving the drive unit, there can be a downward movement range (when the frame is aligned vertically), so that the drive unit must be pressed in the direction of the frame for contacting guidance by means of the guide means.
  • the guide means are preferably formed both on the frame and on the support structure.
  • the motor mount can be arranged between the guide means on the upper side of the support structure.
  • the frame has a recess on the underside into which a part, preferably an upper part, of the drive unit can be inserted, with a detachable connection of drive unit and frame viewed relative to the frame either by lateral insertion of the drive unit into the lateral recess or (in the case of a vertical orientation of the frame) from the bottom upwards introducing the drive unit into the lower recess can be produced.
  • the initial assembly of the drive unit or an assembly after replacement or maintenance of the motor unit can be carried out relative to the frame from bottom to top by pushing it into the lower recess.
  • This is therefore dimensioned in particular so that the motor mount can be pushed in together with the motor unit connected to it.
  • the drive unit can be installed and removed for assembly or maintenance purposes of wear parts such as gears and wear plates after the connection to the motor unit has been separated by lateral displacement of the drive unit in relation to the frame.
  • the guide means are arranged and designed in such a way that when the drive unit is introduced into the lower recess of the frame, the drive unit is centered and finely positioned relative to the frame.
  • the guide means thus fulfill a dual function. These are preferably designed as chamfers, with the slanted surfaces of the chamfers formed on the frame pointing downwards, so that when the drive unit is introduced from the bottom up, centering automatically takes place via the contacting and guiding of the respective slanted surfaces. This makes the installation process much easier and faster.
  • the drive unit can be introduced into the lower recess in a state in which the motor unit is connected to the motor mount.
  • the drive unit can be detachably connected to the lower end of the frame.
  • the motor unit can be detachably connected to the frame or to corresponding connections provided on the frame, it being possible for the connections to be used to produce a hydraulic and/or electrical supply to the motor unit.
  • the present disclosure also shows a trench wall cutter for the production of vertical soil trenches, which can be connected to a carrier device, comprising a frame, a motor unit and a drive unit, the drive unit having a carrier structure, at least one gear arranged on the carrier structure and at least one gear connected to the gear and a milling tool, which can be driven by the motor unit, for crushing soil material, and wherein the frame and the drive unit have connecting means, by means of which the frame and the drive unit can be releasably connected to one another are.
  • the motor unit can be releasably connected to the drive unit, with the connecting means being accessible from the outside, so that the connection between the drive unit and the frame can be established or released from the outside.
  • the assembly and disassembly of the drive unit on the frame is significantly simplified by the connecting means, which are easily accessible from the outside and which are preferably parts of a screw-nut connection.
  • the connecting means which are easily accessible from the outside and which are preferably parts of a screw-nut connection.
  • the frame has indentations which enable access to the connecting means from the outside, the frame preferably being designed in such a way that the parts of the connecting means which are accessible from the outside are inside the indentations and inside the outer contour of the frame which is extended beyond the indentations are arranged.
  • indentations which are arranged in particular on the side, the parts of the connecting means that are accessible for making or loosening the connection, in particular the nuts and screw heads of the screw connections, do not protrude beyond the outer contour of the frame, which would be obtained without indentations, so that the space required or the external dimensions of the trench wall cutter do not increase.
  • the indentations are preferably arranged on the sides of the frame where there are no recesses.
  • the present disclosure further shows a trench wall cutter for the production of vertical soil trenches, which is connectable to a carrier device, comprising a frame, a motor unit and a drive unit, the drive unit having a carrier structure, at least one arranged on the carrier structure gear and at least one milling tool connected to the gear and driven by the motor unit for crushing soil material, the frame and the drive unit each having connecting means by means of which the frame and the drive unit can be detachably connected to one another, the motor unit being detachably connected to the drive unit is, wherein the connecting means are accessible from the outside, so that the connection between the drive unit and the frame can be established or released from the outside and wherein the frame and the drive unit have guide means which are designed in such a way that the drive unit can be moved laterally when the connection to the motor unit is released can be inserted into and removed from the frame.
  • a carrier device 20 designed as a mobile cable excavator with a trench wall cutter 10 according to the invention is shown in a side view.
  • a carrier device 20 for the trench wall cutter according to the invention 10 other working machines such as hydraulic excavators or special civil engineering equipment are also used.
  • the figure 2 shows a detail of an embodiment of the trench wall cutter 10 according to the invention in a side view, in which the drive unit 12 and the lower end of the frame 7 are shown.
  • the trench wall cutter 10 comprises a frame 7, with the lower end of which a drive unit 12 is detachably connected.
  • the drive unit 12 includes a support structure 1, which has a supporting function for the other components of the drive unit 12 such as the milling tools (not shown).
  • a support structure 1 which has a supporting function for the other components of the drive unit 12 such as the milling tools (not shown).
  • gears 3 which are connected to receptacles 4 for milling tools designed as a milling wheel.
  • the support structure 1 has a substantially T-shaped cross-section, gears 3 being arranged at the same level on both sides of the longitudinal beam of the T-shaped cross-section.
  • the support structure 1 has wear plates 5 on the end faces (seen from the side).
  • the transmission 3 and the wear plates 5 are components of the drive unit 12 that are particularly susceptible to wear and therefore require intensive maintenance and must be replaced at regular intervals.
  • the entire drive unit 12 together with the motor unit(s) 9 connected thereto has to be dismantled for this and the corresponding components have to be replaced or serviced.
  • the present invention significantly simplifies and accelerates this exchange or assembly and disassembly process.
  • the drive unit 12 is reversibly connected to the underside of the frame 7 of the trench wall cutter 10 on its upper side (via the crossbeam of the T-shaped cross section seen from the side) via corresponding connecting means 8 .
  • the connecting means 8 form a screw-nut connection, the upper side of the support structure 1 and the lower area of the frame 7 having corresponding openings for the screws 8.
  • the trench wall cutter 10 can be fastened or hung on a carrier device 20 via the frame 7 .
  • the trench wall cutter 10 also includes at least one motor unit 9, by means of which the cutting wheels can be driven via the gear 3.
  • the energy supply of the motor unit(s) 9 is ensured by corresponding supply lines in or on the frame 7 .
  • the motor unit 9 can comprise or represent a hydraulic or electric motor.
  • the motor unit 9 is connected to the drive unit 12 via a motor mount 2 which is arranged on the upper side of the drive unit 12 and to which the motor unit 9 can be detachably connected.
  • a motor mount 2 which is arranged on the upper side of the drive unit 12 and to which the motor unit 9 can be detachably connected.
  • Corresponding connections for mechanical, electrical, hydraulic and/or other connections are provided for this purpose, which can be designed, for example, as quick-action or multi-couplings.
  • the connection of the motor unit 9 to the connections of the frame 7 is also detachable and can also be designed as a quick or multi-coupling.
  • the motor mount 2 protrudes into the frame 7 so that the motor unit 9 is arranged inside the frame 7 in the assembled state.
  • the frame 7 has a recess on the underside, into which when the drive unit 12 is installed, the motor mount 2 , possibly together with the motor unit 9 already connected to the motor mount 2 , can be inserted.
  • the upper side of the support structure 1 has guiding means 6 designed as chamfers, which correspond to corresponding guiding means 6 also designed as chamfers on the underside of the frame 7 at the edge of the recess.
  • the slanted surfaces of the chamfers 6 of the frame 7 point downwards, with the slanted surfaces of the chamfers 6 of the drive unit 12 and the frame 7 making contact in the assembled state.
  • the chamfers 6 act as an aid that the Center drive unit 12 on the last piece when pushing in. This simplifies the assembly of the drive unit 12 via the lower recess.
  • the drive unit 12 together with the motor unit 9 can be mounted on the frame 7 via the lower recess.
  • the frame 7 also has a further recess 13 on the side, the geometric dimensions of which exceed those of the motor unit 9 (seen from the side).
  • the recess 13 is open at the bottom and thus forms a continuous opening with the lower recess.
  • the chamfers 6 are aligned horizontally and parallel to one another (when the trench wall cutter 10 is vertically aligned) and are located on opposite edges of the lower recess.
  • the chamfers 6 thus serve as guide means, via which the drive unit 12 can be laterally displaced horizontally in relation to the frame 7 (when the trench wall cutter 10 is aligned vertically).
  • the connection via the connecting means 8 must be released for this.
  • the drive unit 12 can therefore be pushed laterally out of the frame 7 or pushed into it without the motor unit 9 after the connection between the motor mount 2 and the motor unit 9 has been released.
  • the guidance along the guide means 6 facilitates the process of displacement. This results in a simplified and accelerated disassembly and assembly process for the drive unit 12 , with the motor unit 9 remaining in the frame 7 . This is particularly advantageous in cases in which the drive unit 12 is to be removed and reinstalled for the purpose of replacing or servicing the wear-prone components such as gears 3, cutting wheel mounts 4 or wear plates 5.
  • the guide means 6 consequently fulfill a double function. On the one hand, they serve to center the drive unit 12 during assembly from bottom to top (with the frame 7 aligned vertically) via the lower recess (in which the motor unit 9 can already be connected to the motor mount 2) and, on the other hand, to guide the drive unit 12 during lateral Sliding in or out via the lateral recess 13 (in this case the motor unit 9 is not connected to the motor mount 2).
  • the frame 7 can have such a recess 13 on both sides, so that it is possible to slide it in and out from both sides. Provision can also be made for the geometric dimensions of the lateral recess 13 to exceed those of the motor mount 2 and the motor unit 9 in the connected state, so that the drive unit 12 can be installed and removed laterally together with the motor unit 9 .
  • the drive unit 12 can either extend over the entire or essentially over the entire width of the frame 7, so that only a single drive unit 12 is used in the trench cutter according to the invention. Alternatively, several, in particular two, drive units 12 can be used side by side, each of which is assigned to a motor unit 9 . In this case, there is a lower recess for a drive unit 12 on the underside of the frame 7. Furthermore, in this case, the frame 7 expediently has a recess 13 on both sides, so that each of the drive units 12 fits into the frame 7 on the corresponding side can be inserted.
  • the frame 7 has in the lower area of the front and back (which can be seen in the figure 2 located to the right and left of the lateral recess 13) indentations 11, within which the externally accessible parts (in particular the nuts) of the connecting means 8 are located in the connected state.
  • the screw-nut connections between the drive unit 12 and the frame 7 can be easily loosened or fixed from the outside without the need for additional connecting elements inside the frame 7, which would make assembly and disassembly more difficult.
  • the nut 8 is located completely within the indentations 11, ie within the outer contour of the frame 7, which would be obtained if the outer contour were to be extended beyond the indentations 11, ie the outer contour without indentations 11 would result. This saves space and prevents the connecting means 8 from colliding with the walls of the trench in the ground to be created by the trench wall cutter 10 .
  • the trench cutter 10 is shown in a state in which the drive unit 12 is dismantled from the frame 7, with the motor unit 9 being connected to the motor mount 2.
  • Such a dismantling takes place in relation to the (vertically oriented) frame 7 from top to bottom via the lower recess of the frame 7.
  • the chamfers 6 of the frame 7 and the support structure 1 can be seen individually.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (9)

  1. Fraise de rideau souterrain (10) pour produire des tranchées de sol verticales, laquelle peut être raccordée à un appareil de support (20), comprenant un châssis (7), une unité moteur (9) et une unité d'entraînement (12) pouvant être raccordée de manière amovible au châssis (7), dans laquelle l'unité d'entraînement (12) comprend une structure de support (1), au moins un engrenage (3) disposé sur la structure de support (1) ainsi qu'au moins un outil de fraisage raccordé à l'engrenage (3) et pouvant être entraîné par l'unité moteur (9) pour fragmenter du matériau de sol,
    caractérisée en ce que
    l'unité moteur (9) peut être raccordée de manière amovible à l'unité d'entraînement (12), et que le châssis (7) et l'unité d'entraînement (12) présentent respectivement des moyens de guidage (6), lesquels sont configurés de telle sorte que l'unité d'entraînement (12) peut être entrée par glissement latéralement dans le châssis (7) et en être sortie lorsque le raccordement à l'unité moteur (9) est détaché.
  2. Fraise de rideau souterrain (10) selon la revendication 1, caractérisée en ce que l'unité d'entraînement (12) présente un carter de moteur (2), auquel l'unité moteur (9) peut être raccordée de manière amovible et lequel est disposé de préférence sur le côté supérieur de la structure de support (1).
  3. Fraise de rideau souterrain (10) selon la revendication 2, caractérisée en ce que le châssis (7) présente, sur au moins un côté, de préférence sur deux côtés se faisant face, un évidement (13), à travers lequel le carter de moteur (2) peut être enfilé par glissement de part en part lorsque l'unité d'entraînement (12) est coulissée de manière guidée à l'aide des moyens de guidage (6).
  4. Fraise de rideau souterrain (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que les moyens de guidage (6) du châssis (7) et de l'unité d'entraînement (12) sont configurés en tant que chanfreins, dont les surfaces chanfreinées établissent un contact entre elles dans l'état raccordé.
  5. Fraise de rideau souterrain (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que le châssis (7) présente sur son côté inférieur un creux, dans lequel une partie, de préférence une partie supérieure, de l'unité d'entraînement (12) peut être introduite, dans laquelle un raccordement amovible de l'unité d'entraînement (12) et du châssis (7) peut être établi, vu par rapport au châssis (7), soit par l'intermédiaire d'une introduction latérale de l'unité d'entraînement (12) dans l'évidement (13) latéral soit d'une introduction dirigée du bas vers le haut de l'unité d'entraînement (12) dans le creux inférieur.
  6. Fraise de rideau souterrain (10) selon la revendication 5, caractérisée en ce que les moyens de guidage (6) sont disposés et sont réalisés de telle sorte que lors de l'introduction de l'unité d'entraînement (12) dans le creux inférieur du châssis (7), un centrage et un positionnement précis de l'unité d'entraînement (12) ont lieu par rapport au châssis (7).
  7. Fraise de rideau souterrain (10) selon la revendication 5 ou 6, caractérisée en ce que l'unité d'entraînement (12) peut être introduite dans l'évidement inférieur dans un état, dans lequel l'unité moteur (9) est raccordée au carter de moteur (2).
  8. Fraise de rideau souterrain (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'unité d'entraînement (12) peut être raccordée de manière amovible à l'extrémité inférieure du châssis (7).
  9. Fraise de rideau souterrain (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'unité moteur (9) peut être raccordée de manière amovible au châssis (7).
EP20150905.6A 2019-01-21 2020-01-09 Fraise pour parois moulées Active EP3683362B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21162496.0A EP3851586B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019100319.7U DE202019100319U1 (de) 2019-01-21 2019-01-21 Schlitzwandfräse

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP21162496.0A Division EP3851586B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées
EP21162496.0A Division-Into EP3851586B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Publications (3)

Publication Number Publication Date
EP3683362A2 EP3683362A2 (fr) 2020-07-22
EP3683362A3 EP3683362A3 (fr) 2020-08-05
EP3683362B1 true EP3683362B1 (fr) 2023-05-24

Family

ID=69156302

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Application Number Title Priority Date Filing Date
EP21162496.0A Active EP3851586B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées
EP20150905.6A Active EP3683362B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

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Application Number Title Priority Date Filing Date
EP21162496.0A Active EP3851586B1 (fr) 2019-01-21 2020-01-09 Fraise pour parois moulées

Country Status (4)

Country Link
US (1) US12049743B2 (fr)
EP (2) EP3851586B1 (fr)
CN (1) CN111456133B (fr)
DE (1) DE202019100319U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112459150B (zh) * 2020-11-12 2022-04-15 广东天汇建设工程有限公司 一种地基及基础施工设备

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US1850363A (en) * 1930-07-16 1932-03-22 Parsons Co Ralph M Trench excavator construction
US3524270A (en) * 1969-05-01 1970-08-18 R J Mfg Co Inc Drive mechanism for ditching machine
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US12049743B2 (en) 2024-07-30
CN111456133A (zh) 2020-07-28
EP3683362A3 (fr) 2020-08-05
DE202019100319U1 (de) 2020-04-22
EP3851586B1 (fr) 2023-04-05
EP3851586A1 (fr) 2021-07-21
US20200232182A1 (en) 2020-07-23
EP3683362A2 (fr) 2020-07-22
CN111456133B (zh) 2023-01-10

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