WO2018143197A1 - Engin de chantier - Google Patents

Engin de chantier Download PDF

Info

Publication number
WO2018143197A1
WO2018143197A1 PCT/JP2018/002972 JP2018002972W WO2018143197A1 WO 2018143197 A1 WO2018143197 A1 WO 2018143197A1 JP 2018002972 W JP2018002972 W JP 2018002972W WO 2018143197 A1 WO2018143197 A1 WO 2018143197A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
pair
surface portion
frame
traveling body
Prior art date
Application number
PCT/JP2018/002972
Other languages
English (en)
Japanese (ja)
Inventor
雄大 本山
Original Assignee
コベルコ建機株式会社
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
Priority claimed from JP2018002534A external-priority patent/JP6787350B2/ja
Application filed by コベルコ建機株式会社 filed Critical コベルコ建機株式会社
Priority to US16/481,981 priority Critical patent/US11148916B2/en
Priority to EP18748783.0A priority patent/EP3556717B1/fr
Publication of WO2018143197A1 publication Critical patent/WO2018143197A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/18—Counterweights

Definitions

  • the present invention relates to a construction machine having a pair of left and right side frames.
  • the lower traveling body includes a track frame and a pair of left and right side frames connected to the track frame.
  • the upper swing body includes a work device and is supported by the track frame of the lower traveling body so as to be swingable.
  • Patent Document 1 discloses a technique in which a lower weight is disposed between a pair of side frames in order to improve the stability of a machine body of a construction machine.
  • the track frame includes a jackup cylinder and a jack beam that supports the jackup cylinder.
  • the lower weight is supported by a jack beam.
  • the lower weight has a lower weight and a pair of upper weights.
  • the pair of upper weights are fixed to the upper surface portion of the lower weight with a space in the left-right direction. Both end portions in the left-right direction of the upper weight are arranged close to the pair of side frames, respectively. As a result, a movement passage is formed between the pair of side frames through the lower weight.
  • the present invention has been made in view of the above problems, and allows an operator to easily move between a pair of side frames through a traveling body weight attached to a track frame, and also assembles a traveling body weight. It aims at providing the construction machine which can improve property.
  • the construction machine includes a lower traveling body that can move on the ground and an upper revolving body that is rotatably supported by the lower traveling body.
  • the lower traveling body is provided with a front surface portion and a rear surface portion, and is a track frame that supports the upper revolving body and a pair of side frames that respectively support a circumferentially movable footwear, and is more longitudinal than the track frame.
  • a pair of traveling body weights are provided between the pair of left and right side frames respectively connected to both ends in the left and right direction of the track frame so as to extend to the front and rear sides of the pair of side frames.
  • the track frame includes a frame-side connecting portion that is disposed on each of the front surface portion and the rear surface portion and connected to the traveling body weight, and the pair of front and rear traveling body weights includes a lower weight upper surface portion, and A lower weight comprising a pair of side surfaces disposed opposite to the pair of side frames; a weight side coupling portion coupled to the frame side coupling portion; and an upper weight upper surface portion; An upper weight disposed above the upper surface of the lower weight, wherein both end portions in the left-right direction of the upper weight extend so as to protrude toward the pair of side frames from the pair of side surfaces of the lower weight, respectively. And an upper weight.
  • the upper weight upper surface portion of the upper weight is a movement passage continuously extending along the left-right direction between the both end portions of the upper weight, and allows the operator to move between the pair of side frames. A movement passage is formed.
  • FIG. 1 is a side view of a construction machine according to a first embodiment of the present invention. It is a top view of the lower traveling body of the construction machine concerning a 1st embodiment of the present invention. It is a rear view of the lower traveling body of the construction machine concerning a 1st embodiment of the present invention. It is side sectional drawing of the lower traveling body of the construction machine which concerns on 1st Embodiment of this invention.
  • FIG. 5 is a cross-sectional view of the lower traveling body in FIG. 4 at the XX position.
  • FIG. 6 is an enlarged plan view of a part of the lower traveling body in FIG. 5 as viewed from above.
  • FIG. 5 is an enlarged cross-sectional view in which a part of the lower traveling body in FIG. 4 is enlarged.
  • FIG. 12 is a cross-sectional view of the lower traveling body in FIG. 11 at the AA position.
  • FIG. 12 is an enlarged side view in which one weight connecting portion of the pair of weight connecting portions in FIG. 11 is enlarged.
  • FIG. 1 is a side view of a crane 10 (construction machine) according to a first embodiment of the present invention.
  • a crane 10 construction machine
  • directions of “up”, “down”, “left”, “right”, “front” and “rear” are shown, but the directions are related to the present embodiment. It is shown for convenience in order to describe the structure of the crane 10 and the assembling method, and does not limit the structure, assembling method, usage mode, or the like of the construction machine according to the present invention.
  • the crane 10 includes an upper swing body 11 corresponding to the crane body, a lower traveling body 12 that can move the upper swing body 11 and that can move on the ground, a boom 13 that functions as a hoisting member, and a boom hoist.
  • a lattice mast 14 that is a member for use and a box mast 15 are provided. In FIG. 1, the ground G is illustrated.
  • the boom 13 is rotatably supported by the upper swing body 11 so as to be able to rise and fall around a horizontal axis.
  • the lattice mast 14 is rotatably supported by the upper swing body 11 around a rotation axis parallel to the rotation axis of the boom 13 at a position on the rear side of the boom 13.
  • the lattice mast 14 serves as a support column for the rotation of the boom 13.
  • the box mast 15 has a base end and a rotation end (tip), and is rotatably connected to the upper swing body 11 on the rear side of the lattice mast 14.
  • the rotation axis of the box mast 15 is arranged in parallel with the rotation axis of the boom 13 and at substantially the same position as the rotation axis of the lattice mast 14.
  • the crane 10 further includes a lower spreader 18, an upper spreader 19, a guy line 20, a boom hoisting rope 21, and a boom hoisting winch 22.
  • the guy line 20 connects the upper spreader 19 and the tip of the boom 13.
  • the boom hoisting rope 21 is pulled out from the boom hoisting winch 22 and hung on the first mast sheave 141 and the second mast sheave 142 at the tip of the lattice mast 14, and then the sheave block of the lower spreader 18 and the sheave block of the upper spreader 19. Multiple times between and.
  • the boom hoisting winch 22 changes the distance between the sheave block of the lower spreader 18 and the sheave block of the upper spreader 19 by winding and unwinding the boom hoisting rope 21, and the boom 13 is moved relative to the lattice mast 14.
  • the boom 13 is raised and lowered while rotating relatively.
  • the crane 10 includes a guy line 23, a mast hoisting rope 24, and a mast hoisting winch 25.
  • the guy line 23 connects the tip of the lattice mast 14 and the rotating end of the box mast 15.
  • the mast hoisting rope 24 is hung a plurality of times between a sheave block 26 disposed on the upper swing body 11 and a sheave block 27 disposed on a rotating end portion of the box mast 15.
  • the mast hoisting winch 25 winds and unwinds the mast hoisting rope 24 and changes the distance between the sheave block 26 and the sheave block 27.
  • the lattice mast 14 is raised and lowered while the box mast 15 and the lattice mast 14 rotate integrally with the upper swing body 11.
  • the crane 10 is mounted with a main winding winch 30 and an auxiliary winding winch 31 for winding and lowering a suspended load.
  • the main winding winch 30 performs lifting and lowering of the suspended load by the main winding rope 32.
  • a main hook 34 ⁇ / b> A for a suspended load is connected to the main winding rope 32 that hangs down from the tip of the boom 13.
  • the main winding winch 30 winds or unwinds the main winding rope 32, the main hook 34A is wound and lowered.
  • the auxiliary winding winch 31 performs lifting and lowering of the suspended load by the auxiliary hook 34 ⁇ / b> B connected to the auxiliary winding rope 33.
  • a counterweight 35 for adjusting the balance of the crane 10 is loaded at the rear part of the upper swing body 11, and a pallet weight 36 is further disposed behind the upper swing body 11.
  • FIG. 2 is a plan view of the lower traveling body 12 of the crane 10 according to the present embodiment.
  • FIG. 3 is a rear view of the lower traveling body 12.
  • FIG. 4 is a side sectional view of the lower traveling body 12.
  • the lower traveling body 12 includes a track frame 50, a left crawler unit 51, a right crawler unit 52, a front weight 53 (traveling body weight), a rear weight 54 (traveling body weight), and a plurality of connecting portions 56. .
  • the track frame 50 is disposed at the center of the lower traveling body 12 and has a function of supporting the upper swing body 11.
  • the track frame 50 has a substantially rectangular parallelepiped shape including a front surface portion 501 and a rear surface portion 502. Further, a revolving body shaft support 500 is disposed on the upper surface of the track frame 50.
  • the upper swing body 11 is rotatably mounted on the swing body shaft support 500.
  • the left crawler unit 51 and the right crawler unit 52 are connected to the left and right of the track frame 50.
  • the left crawler unit 51 includes a left side frame 511 (side frame), a left drive roller 512, a left driven roller 513, a left crawler shoe 514 (footwear), and a pair of left frame connecting portions 515.
  • the right crawler unit 52 includes a right side frame 521 (side frame), a right drive roller 522, a right driven roller 523, a right crawler shoe 524 (footwear), a pair of right frame coupling portions 525, Is provided.
  • the track frame 50 further includes two pairs of front and rear jack-up devices 55 provided on the front surface portion 501 and the rear surface portion 502, respectively.
  • the two pairs of front and rear jack-up devices 55 have a function of supporting the lower traveling body 12. As shown in FIG. 2, these jack-up devices 55 are arranged so as to protrude forward and backward from both end portions of the front portion 501 and the rear portion 502.
  • the two pairs of jack-up devices 55 on the front side and the rear side of the track frame 50 are disposed at positions sandwiching an upper frame connecting portion 503 and a lower frame connecting portion 504 (FIG. 7) described later from both sides in the left-right direction.
  • the jackup device 55 includes a jackup cylinder 55S and a jackup support member 55T for supporting the jackup cylinder 55S.
  • the jack-up cylinder 55S can be expanded and contracted along the vertical direction by hydraulic pressure (see FIG. 3).
  • the jackup device 55 can support the lower traveling body 12 in such a posture that the left crawler unit 51 and the right crawler unit 52 are lifted from the ground by the extending operation of the plurality of jackup devices 55.
  • the left crawler shoe 514 and the right crawler shoe 524 can be attached to the left side frame 511 and the right side frame 521.
  • a loading platform of a transportation trailer (not shown) can enter the lower traveling body 12 and the crane 10 can be loaded or unloaded on the transportation trailer.
  • the left side frame 511 and the right side frame 521 support the left crawler shoe 514 and the right crawler shoe 524 so as to be able to move around.
  • the left side frame 511 and the right side frame 521 are respectively connected to both left and right ends of the track frame 50 so as to extend in the front-rear direction from the track frame 50 through the left frame connection portion 515 and the right frame connection portion 525, respectively.
  • the left driving roller 512 and the right driving roller 522 are rotatably supported by the front end portions of the left side frame 511 and the right side frame 521, respectively, and receive the driving force of a driving mechanism (not shown) to receive the left crawler shoe 514 and the right crawler.
  • the shoe 524 is driven around.
  • the left driven roller 513 and the right driven roller 523 are rotatably supported at the rear end portions of the left side frame 511 and the right side frame 521.
  • the front weight 53 and the rear weight 54 are disposed on the front side and the rear side of the track frame 50 between the left side frame 511 and the right side frame 521, respectively. Specifically, the front weight 53 and the rear weight 54 are connected and supported by the front surface portion 501 and the rear surface portion 502 of the track frame 50 between the left side frame 511 and the right side frame 521, respectively. These weights are attached to the truck frame 50 in order to maintain the balance of the crane 10.
  • the front weight 53 and the rear weight 54 are connected to the track frame 50 at a plurality of connecting portions 56 in FIG. Each of the connecting portions 56 includes an upper connecting portion 561 and a lower connecting portion 562 (see FIG. 5).
  • the front weight 53 and the rear weight 54 are provided between the left side frame 511 and the right side frame 521 via the other support members, respectively, and the front portion 501 and the rear portion of the track frame 50. 502 may be coupled.
  • FIG. 5 is a cross-sectional view of the lower traveling body 12 in FIG. 4 at the XX position, and corresponds to a view of the rear weight 54 viewed from the track frame 50 side.
  • FIG. 6 is an enlarged plan view of a part of the lower traveling body 12 of FIG. 5 as viewed from above.
  • FIG. 7 is an enlarged cross-sectional view in which a part of the lower traveling body 12 of FIG. 4 is enlarged.
  • the rear weight 54 includes a lower weight 61, an upper weight 62, and a ladder 57.
  • the lower weight 61 is a heavy object having a substantially rectangular parallelepiped shape. As shown in FIG. 2, the lower weight 61 is disposed at a position sandwiched by a pair of jackup devices 55 from both sides in the left-right direction.
  • the lower weight 61 includes a lower weight upper surface portion 61T (FIG. 5), a pair of side surfaces (lower weight left side surface 61L and lower weight right side surface 61R: FIG. 5), and an opposing surface 610 (FIG. 4).
  • the lower weight left side surface 61L and the lower weight right side surface 61R are disposed to face the left side frame 511 and the right side frame 521, respectively.
  • the facing surface 610 connects the lower weight left side surface 61L and the lower weight right side surface 61R in the left-right direction, and is disposed to face the rear surface portion 502 of the track frame 50 (FIG. 4).
  • the lower weight 61 further includes a pair of left and right upper weight connecting portions 611 (weight side connecting portions), a pair of left and right lower weight connecting portions 613 (weight side connecting portions), and a plurality of lower weight connecting plates 614 (FIG. 5). ) And a pair of left and right storage portions 615.
  • the upper weight connecting portion 611 and the lower weight connecting portion 613 constitute the connecting portion 56 (FIG. 2) of this embodiment.
  • the pair of upper weight connecting portions 611 (FIGS. 5 and 7) are arranged so as to protrude from the upper end portion of the facing surface 610 toward the track frame 50, respectively.
  • the pair of upper weight connecting portions 611 are arranged at intervals in the left-right direction.
  • Each upper weight connecting portion 611 includes two plate-like portions and a shaft portion 612 arranged so as to connect the two plate-like portions.
  • the upper weight connecting portion 611 is connected to the upper frame connecting portion 503 of the track frame 50.
  • the pair of lower weight connecting portions 613 are disposed so as to protrude from the lower end portion of the facing surface 610 toward the track frame 50, respectively.
  • the pair of lower weight connecting portions 613 are arranged at intervals in the left-right direction.
  • Each lower weight connecting portion 613 is composed of one plate-like portion.
  • a through-hole 613S (second through-hole) (FIG. 7) is opened in the lower weight connecting portion 613 along the left-right direction.
  • the lower weight connecting portion 613 is connected to the lower frame connecting portion 504 of the track frame 50.
  • the plurality of lower weight connection plates 614 are disposed so as to protrude from the upper ends of the lower weight left side surface 61L and the lower weight right side surface 61R along the left-right direction. Although not shown in FIG. 5, a plurality of lower weight connection plates 614 are arranged at intervals in the front-rear direction on each of the lower weight left side surface 61L and the lower weight right side surface 61R.
  • the lower weight connection plate 614 is used to connect the lower weight 61 and the upper weight 62.
  • a through hole (not shown) is opened in the lower weight connection plate 614 along the front-rear direction.
  • the pair of left and right storage portions 615 are respectively disposed at the lower end portions of the lower weight left side surface 61L and the lower weight right side surface 61R.
  • the storage portion 615 has a cylindrical shape, the upper end portion of the storage portion 615 is opened, and the lower end portion of the storage portion 615 is closed by the bottom portion.
  • the storage portion 615 can store a connection pin P ⁇ b> 1 that connects the lower weight 61 and the track frame 50. Therefore, in the state where the rear weight 54 is not connected to the track frame 50, the connection pin P1 is prevented from being lost.
  • the upper weight 62 is a plate-like heavy object that is detachably attached to the lower weight 61 so as to be disposed above the lower weight upper surface portion 61T of the lower weight 61.
  • the rear weight 54 is configured, and two weights having different lengths in the left-right direction can be separated from each other, so that the transportability of the rear weight 54 is improved.
  • the upper weight 62 includes a plate-like portion 620 extending along the left-right direction, a pair of first leg portions 621, and a pair of second leg portions 622.
  • the plate-like portion 620 is a main body portion of the upper weight 62 and is disposed above the lower weight upper surface portion 61T. As shown in FIG.
  • the plate-like portion 620 has a substantially trapezoidal shape when viewed from above.
  • the plate-like portion 620 of the upper weight 62 has a shape in which two corners of a substantially rectangular shape are partially cut out.
  • notches 62S are formed at two corners of the upper weight 62 facing the track frame 50 so as to avoid the jack-up device 55.
  • the ladder 57 (FIGS. 2 and 4) can be attached to the upper weight 62, and allows an operator to move between the ground and the upper surface portion of the upper weight 62.
  • the first leg portion 621 and the second leg portion 622 are disposed so as to protrude downward from the lower surface portion of the plate-like portion 620.
  • the first leg portion 621 and the second leg portion 622 can support the plate-like portion 620 at a predetermined height with respect to the ground by contacting the ground when the upper weight 62 is detached from the lower weight 61. In this way, each protrudes from the plate-like portion 620 at the same height.
  • the pair of first leg portions 621 is a position where the lower weight 61 is sandwiched from both sides in the left-right direction at a predetermined interval, and in the vicinity of the inner end portion of the notch portion 62S. Projecting from the portion 620.
  • the pair of second leg portions 622 protrudes from the plate-like portion 620 at a position on the rear side of the lower weight 61 so as to face both ends of the lower weight 61 in the left-right direction.
  • the upper weight 62 can be stably placed on the ground by the four legs protruding from the plate-like portion 620. As a result, the operator can access the lower surface portion of the plate-like portion 620 even when the upper weight 62 is placed alone on the ground.
  • the left and right ends of the upper weight 62 have a pair of side frames (a lower weight left side 61L, a lower weight right side 61R) rather than a pair of side frames (lower weight left side 61L, lower weight right side 61R).
  • the left side frame 511 and the right side frame 521) extend so as to protrude.
  • the upper surface portion (upper weight upper surface portion) of the plate-like portion 620 of the upper weight 62 continuously extends in the left-right direction between the left and right end portions.
  • both end portions of the upper weight 62 in the left-right direction are disposed close to the left side frame 511 and the right side frame 521 with a predetermined interval.
  • a movement passage is formed so that the operator of the crane 10 can move between the pair of side frames through the upper weight 62.
  • the upper weight 62 further includes a plurality of upper weight connection plates 623 (FIG. 5).
  • the plurality of upper weight connection plates 623 are arranged so as to protrude downward from the lower surface portion of the plate-like portion 620 of the upper weight 62.
  • a plurality of upper weight connection plates 623 are arranged at intervals in the front-rear direction on each of the right and left sides of the upper weight 62.
  • each upper weight connection plate 623 is disposed at a position overlapping the lower weight connection plate 614 of the lower weight 61 in the front-rear direction.
  • the upper weight connection plate 623 is used to connect the lower weight 61 and the upper weight 62.
  • a through hole (not shown) is opened in the upper weight connection plate 623 along the front-rear direction.
  • the connecting pin P2 (FIG. 5) is inserted into the through hole of the lower weight connection plate 614 of the lower weight 61 and the through hole of the upper weight connection plate 623 of the upper weight 62, so that the left and right sides of the rear weight 54 are left and right.
  • the lower weight 61 and the upper weight 62 are connected.
  • the left and right upper weight connection plates 623 are disposed at positions where the lower weight 61 is sandwiched, the upper weight 62 can be easily disposed at the mounting position with respect to the lower weight 61. it can.
  • the track frame 50 further includes a pair of upper frame connecting portions 503 (frame side connecting portions) (see FIG. 7) and a pair of lower frame connecting portions 504 (frame side connecting portions) provided on the rear surface portion 502. (See FIG. 7).
  • a similar connecting portion is also provided on the front surface portion 501 of the track frame 50 (FIG. 5). These connecting portions constitute the connecting portion 56 (FIG. 2) of the present embodiment.
  • the pair of upper frame connecting portions 503 are plate-like portions protruding from the upper end portion of the rear surface portion 502 of the track frame 50 toward the lower weight 61.
  • the pair of upper frame connecting portions 503 are arranged at an interval in the left-right direction.
  • the upper frame connecting portion 503 is composed of a single plate-like portion.
  • the upper frame connecting portion 503 includes a groove portion 503S.
  • the shaft portion 612 of the above-described upper weight connection portion 611 is fitted into the groove portion 503S, so that the upper weight connection portion 611 and the upper frame connection portion 503 are connected to each other.
  • the pair of lower frame connecting portions 504 are plate-like portions protruding from the lower end portion of the rear surface portion 502 of the track frame 50.
  • the pair of lower frame connecting portions 504 are arranged at an interval in the left-right direction.
  • Each lower frame connecting portion 504 includes two plate-like portions.
  • a through hole 504S (first through hole) is opened in each plate-like portion (FIG. 7).
  • the lower frame connecting portion 504 is connected to the lower weight connecting portion 613 of the lower weight 61.
  • the upper weight 62 is attached to the lower weight 61 at a position away from the track frame 50.
  • the upper weight 62 lifted by an auxiliary crane (not shown) is placed on the lower weight upper surface portion 61T of the lower weight 61 as shown in FIG.
  • the rear weight 54 is assembled by inserting and fastening the connecting pins P ⁇ b> 2 into the through holes of the lower weight connection plate 614 and the upper weight connection plate 623.
  • the rear weight 54 is lifted by the auxiliary crane and moved so as to approach the rear surface portion 502 of the track frame 50.
  • the shaft portion 612 (FIG. 7) of the lower weight 61 is fitted into the groove portion 503 ⁇ / b> S of the upper frame connecting portion 503 of the track frame 50.
  • the connecting pin P1 is inserted and fastened into the through hole 613S of the lower weight connecting portion 613 and the through hole 504S of the lower frame connecting portion 504, whereby the rear weight 54 is connected to the track frame 50.
  • the rear weight 54 is supported by the track frame 50.
  • the rear weight 54 and the track frame 50 can be easily connected by the connecting pin P1.
  • the lower weight 61 of the rear weight 54 is directly connected to the rear surface portion 502 of the track frame 50.
  • the jack-up device 55 is not indispensable as compared with other configurations in which the rear weight 54 is connected to and supported by the jack-up support member 55T of the jack-up device 55. Further, the operability of the jack-up device 55 is prevented from being lowered due to the rear weight 54 being attached to the jack-up support member 55T.
  • connection passage is provided so that the operator can easily access the connection portion 56 (FIG. 2) from the rear of the rear weight 54.
  • AW (FIG. 3) is formed.
  • the connecting passage AW is below the upper weight 62, between the lower weight left side surface 61L of the upper weight 62 and the left jack up device 55, and between the lower weight right side surface 61R and the right jack up device 55.
  • Each is formed along the front-rear direction.
  • the lower weight 61 is disposed at a position sandwiched between the pair of left and right jack-up devices 55 from both sides in order to secure the connection passage AW.
  • a pair of left and right side surfaces (lower weight left side surface 61L, lower weight right side surface 61R) of the lower weight 61 are respectively spaced apart from each other with respect to the jack-up device 55 in the left-right direction.
  • the width in the left-right direction of the lower weight 61 and the upper weight 62 is such that the rear weight 54 has a T-shape that forms the connection passage AW. Is set.
  • the lower weight left side surface 61L and the lower weight right side surface 61R of the lower weight 61 also have a function of defining one side portion of the connection passage AW. For this reason, the worker can easily reach the connecting portion 56 by moving toward the track frame 50 along the side surface of the lower weight 61.
  • the upper weight 62 is provided with a notch 62S so as to face the jackup device 55. Therefore, the operability of the jackup device 55 is further improved without the upper weight 62 preventing the expansion and contraction of the jackup cylinder 55S of the jackup device 55.
  • the storage portion 615 is provided on the lower weight left side surface 61L and the lower weight right side surface 61R. For this reason, the operator can take out the connection pin P1 from the storage portion 615 while entering the connection passage AW.
  • the storage portion 615 may be provided on the rear surface portion of the lower weight 61 (the side surface on the front side in FIG. 3). Also in this case, the operator can take out the connecting pin P1 from the storage portion 615 and quickly reach the connecting portion 56 through the connecting passage AW.
  • connection pin P1 when the connection pin P1 is stored in the storage unit 615, it is desirable that the shape of the storage unit 615 is set so that a part of the connection pin P1 is exposed from the storage unit 615.
  • the storage portion 615 is disposed on any one of the lower weight left side surface 61L, the lower weight right side surface 61R, and the rear surface portion of the lower weight 61, so that the operator can connect the connection pin P1 to the connection portion 56. Whether or not it is attached can be simply confirmed by the presence or absence of the connecting pin P1 in the storage portion 615.
  • a ladder 57 can be attached to the upper weight 62 of the rear weight 54 (front weight 53). For this reason, the operator can move directly onto the upper weight 62 from the ground.
  • the upper weight 62, the left side frame 511, and the right side from the ground are compared with other weight structures that move from the ground to the lower weight 61 and then move from the lower weight 61 to the upper weight 62. Accessibility to the frame 521 is improved.
  • FIG. 8 is a plan view of the lower traveling body 12M of the crane according to the present embodiment.
  • FIG. 9 is a plan view of the rear weight 54 (traveling body weight) of the crane according to the present embodiment.
  • 10 and 11 are a rear view and a side view of the rear weight 54 according to the present embodiment.
  • FIG. 12 is a cross-sectional view of the lower traveling body 12M in FIG. 11 at the AA position, and is a view of the weight connecting portion 70 described later as viewed from above.
  • FIG. 13 is an enlarged side view in which one weight connecting portion 70 of the pair of weight connecting portions 70 in FIG. 11 is enlarged.
  • the upper weight 62 has a rectangular shape in a top view, and forms a movement path as in the first embodiment.
  • notch portions 62 ⁇ / b> S as shown in FIG. 2 are not formed at the left and right end portions of the upper weight 62. That is, the width in the left-right direction of the upper weight 62 is set to be substantially the same along the front-rear direction.
  • the upper weight 62 has an upper weight upper surface portion 62T and an upper weight lower surface portion 62K (FIG. 10).
  • the upper weight upper surface portion 62T is an upper surface portion of the plate-like portion 620 of the upper weight 62
  • the upper weight lower surface portion 62K is a lower surface portion of the plate-like portion 620. That is, the upper weight lower surface portion 62K is positioned below the upper weight upper surface portion 62T.
  • the upper weight lower surface portion 62 ⁇ / b> K is disposed above the lower weight upper surface portion 61 ⁇ / b> T of the lower weight 61 with a space therebetween.
  • the rear weight 54 front weight 53, traveling body weight
  • each weight connection portion 70 includes a connection leg portion 71 and a support bracket 72.
  • the connecting leg portion 71 is disposed so as to protrude downward from the upper weight lower surface portion 62K (plate-like portion 620) of the upper weight 62.
  • the connecting leg 71 has a leg body 711 and an engagement plate 712.
  • the leg main body 711 is a columnar member projecting downward from the plate-like portion 620 and has a U-shape in a horizontal sectional view.
  • the engagement plate 712 is a plate-like member that is fixed to the lower end of the leg body 711 and extends horizontally. As shown in FIG. 12, the engagement plate 712 has a U shape in top view so as to surround the leg main body 711.
  • the concave portion 712 ⁇ / b> S is formed by cutting out the central portion of the outer edge in the left-right direction of the rectangular plate-like member in a top view.
  • An engagement pin 722 to be described later can be inserted into the recess 712S.
  • the support bracket 72 is disposed on the lower weight left side surface 61L and the lower weight right side surface 61R (side surface) of the lower weight 61, and supports the connecting leg portion 71 at a position below the lower weight upper surface portion 61T.
  • the support bracket 72 includes a support plate 721, an engagement pin 722, and a pair of support ribs 723.
  • the support plate 721 is a plate-like member protruding from the lower weight left side surface 61L (lower weight right side surface 61R) of the lower weight 61 toward the outer side in the left-right direction, and extends horizontally. As shown in FIGS.
  • the support plate 721 has a function of supporting the engagement plate 712 of the connecting leg 71 from below, and has a rectangular shape slightly larger than the engagement plate 712.
  • the engagement pin 722 is a pin disposed so as to extend upward from a substantially central portion of the support plate 721. As shown in FIG. 13, the tip (upper end) of the engagement pin 722 is tapered (tapered).
  • the pair of support ribs 723 are fixed to the lower weight left side surface 61L (lower weight right side surface 61R) of the lower weight 61, and support the support plate 721 from below.
  • the upper weight 62 is lifted above the lower weight 61 by an unillustrated auxiliary crane, and the four connecting leg portions 71 are mounted on the corresponding support brackets 72, respectively.
  • the recess 712 ⁇ / b> S of the engagement plate 712 is fitted into the engagement pin 722, so that the position of the upper weight 62 is regulated in the front-rear and left-right directions.
  • the four weights of the upper weight 62 cause the four engagement plates 712 to contact the support plate 721, so that the upper weight 62 is positioned in the downward direction. As a result, as shown in FIGS.
  • the upper weight lower surface portion 62 ⁇ / b> K of the upper weight 62 is disposed at an upper interval with respect to the lower weight upper surface portion 61 ⁇ / b> T of the lower weight 61.
  • the fixing structure of the upper weight 62 with respect to the lower weight 61 is not limited to the above.
  • the upper weight 62 may be fixed to the lower weight 61 with bolts or other fixing members.
  • the front weight 53 and the rear weight 54 are heavy items of several tons to several tens of tons, their surface areas also increase. Therefore, as in the previous embodiment, in order to bring the upper weight lower surface portion 62K of the upper weight 62 into close contact with the lower weight upper surface portion 61T of the lower weight 61, the surfaces of the lower weight upper surface portion 61T and the upper weight lower surface portion 62K. It is desirable to ensure the property with high accuracy (machining). In other words, if there are irregularities in the lower weight upper surface portion 61T and the upper weight lower surface portion 62K, the upper weight 62 may be tilted or rattled.
  • the upper weight lower surface portion 62K and the lower weight upper surface portion 61T do not come into close contact with each other, so that the necessity of processing the surface properties of these surfaces with high accuracy is reduced.
  • the upper weight 62 can be stably disposed on the lower weight 61 only by ensuring the horizontality and surface property of the four engagement plates 712 and the support plate 721 within a predetermined range.
  • the upper weight lower surface portion 62K of the upper weight 62 is thus disposed above the lower weight upper surface portion 61T of the lower weight 61 so that the notch portion 62S as shown in FIG.
  • the need to form the weight 62 is reduced. That is, the upper weight lower surface portion 62K and the lower weight upper surface portion 61T are arranged such that the upper weight 62 is positioned above the uppermost position of the jackup device 55 (translifter) that is vertically moved by the hydraulic jackup cylinder 55S.
  • the upper weight 62 is always arranged so as to cover the jack-up device 55 from above. Therefore, even when the jack-up device 55 expands and contracts up and down, the upper weight 62 is prevented from hindering the expansion and contraction operation.
  • both the left and right ends of the upper weight 62 are disposed at positions close to the left side frame 511 and the right side frame 521, so that the operator can move easily and safely. To be realized. Furthermore, since the weight of the upper weight 62 is not reduced by providing the notch 62S, it is possible to prevent the suspension capacity and stability of the crane 10 from being lowered. Moreover, the manufacturing cost of the upper weight 62 for providing the notch 62S can be reduced.
  • a height adjusting shim (plate member) is inserted in advance between the engagement plate 712 and the support plate 721 (insertion portion SS in FIG. 13). By doing so, it can be adjusted as appropriate. Further, the shim of the upper weight 62 can be further reduced by the shim.
  • the upper weight upper surface portion 62T of the upper weight 62 and the upper surface portion of the track frame 50 are set to substantially the same height (level) by the position adjustment by the shim and the shape of the weight connecting portion 70. Is desirable. In this case, the movement between the upper weight 62 and the track frame 50 by the operator is realized easily and safely.
  • the upper weight upper surface portion 62T of the upper weight 62 and the upper surface portions of the left frame connecting portion 515 and the right frame connecting portion 525 may be set at substantially the same height. Also in this case, the operator can easily and safely move between the upper weight 62, the left side frame 511, and the right side frame 521 through the left frame connecting portion 515 and the right frame connecting portion 525.
  • the crane 10 is used as the construction machine, but the present invention is not limited to this.
  • the construction machine according to the present invention may include other aspects such as a hydraulic excavator and an excavator.
  • the storage unit 615 has been described as being disposed on the lower weight left side surface 61L and the lower weight right side surface 61R of the lower weight 61.
  • the side weights 54 the front weights 53
  • they may be disposed on the surface opposite to the facing surface 610 (see FIGS. 9 and 10).
  • the storage unit 615 may be disposed on the lower surface of the upper weight 62 or the like.
  • the entire upper surface of the upper weight 62 extends continuously between both ends thereof, so that a movement passage is formed between the pair of side frames.
  • the present invention is not limited to this.
  • a mode in which a part in the front-rear direction of the upper surface portion of the upper weight 62 extends continuously along the left-right direction between both end portions in the left-right direction may be employed.
  • a plurality of grooves may be formed on the upper surface portion of the upper weight 62 in order to prevent the operator from slipping. Even in the configuration as described above, a plurality of upper weights 62 are divided and attached to the lower weight 61, and there is a difference in level between the lower weight 61 and the upper weight 62. Thus, the movement of the worker can be realized safely and easily.
  • the upper weight 62 is supported by the four weight connecting portions 70 provided in the lower weight 61 and the upper weight 62.
  • the plurality of weight connecting portions according to the present invention may include a track frame side support portion that is disposed on the track frame 50 and supports the upper weight 62 from below.
  • the support bracket 72 of FIG. 10 is provided on the front surface portion 501 and the rear surface portion 502 of the track frame 50, so that the other connecting leg portion 71 disposed on the upper weight 62 is supported by the support bracket 72. That's fine.
  • the upper weight 62 is supported by the track frame 50 in addition to the lower weight 61. For this reason, the stability of the upper weight 62 that extends long to the left and right is improved.
  • a plurality of left frame connecting portions 515 and right frame connecting portions 525 (also referred to as interframe connecting members, ASKUL) that connect the track frame 50 to the left side frame 511 and the right side frame 521 (a pair of left and right side frames), respectively.
  • an auxiliary support part that supports the upper weight 62 from below.
  • the upper surface portions of the left frame connecting portion 515 and the right frame connecting portion 525 support the upper weight lower surface portion 62K of the upper weight 62 as an auxiliary support portion.
  • the connection leg part 71 provided in the upper weight 62 is supported by the left frame connection part 515 and the right frame connection part 525 may be sufficient.
  • the upper weight 62 is supported by the left frame connecting portion 515 and the right frame connecting portion 525 in addition to the lower weight 61. For this reason, the stability of the upper weight 62 that extends long to the left and right is similarly improved.
  • a construction machine provided by the present invention includes a lower traveling body that is movable on the ground, and an upper revolving body that is rotatably supported by the lower traveling body.
  • the lower traveling body is provided with a front surface portion and a rear surface portion, and is a track frame that supports the upper revolving body and a pair of side frames that respectively support a circumferentially movable footwear, and is more longitudinal than the track frame.
  • the track frame includes a frame-side connecting portion that is disposed on each of the front surface portion and the rear surface portion and connected to the traveling body weight, and the pair of front and rear traveling body weights includes a lower weight upper surface portion, and A lower weight comprising a pair of side surfaces disposed opposite to the pair of side frames; a weight side coupling portion coupled to the frame side coupling portion; and an upper weight upper surface portion; An upper weight disposed above the upper surface of the lower weight, wherein both end portions in the left-right direction of the upper weight extend so as to protrude toward the pair of side frames from the pair of side surfaces of the lower weight, respectively. And an upper weight.
  • the upper weight upper surface portion of the upper weight is a movement passage continuously extending along the left-right direction between the both end portions of the upper weight, and allows the operator to move between the pair of side frames. A movement passage is formed.
  • the moving passage is formed between the pair of side frames by the traveling body weight.
  • the operator can easily move between the pair of side frames through the upper weight upper surface portion of the upper weight of the traveling body weight.
  • the upper weight upper surface portion continuously extends along the left-right direction between both ends of the upper weight, so that the movement of the worker is safer and easier than other configurations in which the upper weight is divided. And the assembly of the traveling body weight is easily realized.
  • the pair of front and rear traveling body weights are respectively supported by the front surface portion and the rear surface portion of the track frame between the pair of side frames.
  • the pair of front and rear traveling body weights can be stably supported by the track frame.
  • the track frame is disposed so as to protrude from the front surface portion and the rear surface portion at a position sandwiching the frame side connecting portion from both sides in the left-right direction, and can support the lower traveling body.
  • the lower weight is arranged at a position sandwiched from both sides in the left-right direction by a pair of the jackup devices of the two pairs of front and rear jackup devices,
  • the pair of side surfaces of the weights are respectively spaced apart in the left-right direction between the pair of jack-up devices, so that the frame side connecting portion and the weight side from the front or rear of the traveling body weight
  • a connecting passage that allows access to the connecting portion is below the upper weight and the lower weight.
  • it is formed along the longitudinal direction between said pair of side surfaces and said pair of jack-up device.
  • the worker can access the frame side connecting portion and the weight side connecting portion from the front or rear of the traveling body weight through the connecting passage. For this reason, in the configuration in which the traveling body weight is connected to the front surface portion or the rear surface portion of the track frame, it is possible to easily realize the connection work between them.
  • the upper weight is detachable from the lower weight.
  • the transportability of the traveling body weight is improved by separating two weights having different lengths in the left-right direction.
  • the upper weight extends in the left-right direction, and protrudes downward from the plate-like portion disposed above the upper surface of the lower weight of the lower weight and the lower surface of the plate-like portion.
  • a plurality of legs that can support the plate-like portion at a predetermined height with respect to the ground by contacting the ground when the upper weight is detached from the lower weight, and It is desirable to provide.
  • the upper weight can be stably placed on the ground.
  • the upper weight is placed on the ground, it is possible to access the lower surface portion of the plate-like portion of the upper weight.
  • the upper weight includes an upper weight lower surface portion positioned below the upper weight upper surface portion, and the upper weight lower surface portion is disposed above the lower weight upper surface portion with a space therebetween. It is desirable to further comprise a plurality of weight connecting portions for connecting the upper weight and the lower weight.
  • the lower weight upper surface portion is disposed above the lower weight upper surface portion with a space therebetween. For this reason, since the upper weight lower surface portion and the lower weight upper surface portion are not in close contact with each other, the need for processing the surface properties of these surfaces with high accuracy is reduced.
  • the plurality of weight connecting portions are arranged so as to sandwich the lower weight from both sides in the left-right direction, and are respectively connected leg portions arranged so as to protrude downward from the lower surface portion of the upper weight. It is desirable to include a lower weight side support bracket that is disposed on the side surface of the lower weight and supports the connecting leg at a position lower than the upper surface of the lower weight.
  • the lower weight portion of the upper weight is disposed above the upper surface portion of the lower weight with the connecting leg portion disposed on the upper weight and the lower weight side support bracket disposed on the lower weight. Can do.
  • the plurality of weight connecting portions include a track frame side support portion that is disposed on the track frame and supports the upper weight from below.
  • the upper weight is supported by the track frame in addition to the lower weight. For this reason, the stability of the upper weight extending long from side to side is improved.
  • the apparatus further includes a plurality of inter-frame connection members that respectively connect the track frame and the pair of left and right side frames, and the plurality of weight connecting portions are disposed on the plurality of inter-frame connection members and It is desirable to include an auxiliary support portion that supports the weight from below.
  • the upper weight is supported by the interframe connecting member in addition to the lower weight. For this reason, the stability of the upper weight extending long from side to side is improved.
  • the track frame is disposed so as to protrude from the front surface portion and the rear surface portion at a position sandwiching the frame side connecting portion from both sides in the left-right direction, and can support the lower traveling body.
  • the upper weight is disposed so as to cover the plurality of jackup devices from above.
  • This configuration reduces the need for an operator to detour around the jack-up device when moving in the movement path. Further, by adjusting the distance between the lower weight upper surface portion and the lower weight upper surface portion in advance, even when the jackup device expands and contracts vertically, the upper weight is prevented from interfering with the expansion and contraction operation.
  • the frame-side connecting portion has a first through hole opened in the left-right direction
  • the weight-side connecting portion has a second through-hole opened in the left-right direction
  • the lower traveling body further includes a connecting pin that is inserted through the first through hole and the second through hole and connects the traveling body weight and the track frame to each other.
  • the traveling body weight and the track frame can be easily connected by the connecting pin.
  • the traveling body weight includes a storage portion that can store the connection pin.
  • the storage portion is disposed on at least one of the pair of side surfaces of the lower weight and the side surface opposite to the facing surface in the front-rear direction.
  • the operator can take out the connecting pin from the storage portion and quickly reach the frame side connecting portion and the weight side connecting portion.
  • the lower traveling body further includes a ladder that can be attached to the upper weight and that allows an operator to move between the ground and the upper surface of the upper weight.
  • the operator can move directly from the ground onto the upper weight.
  • the accessibility from the ground to the upper weight and the pair of side frames is improved as compared with other weight structures that move from the ground to the lower weight and then move from the lower weight to the upper weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

L'invention concerne un engin de chantier dans lequel l'aptitude à l'assemblage d'un poids de corps mobile à monter sur un châssis de camion peut être améliorée, et le passage d'un opérateur entre une paire de châssis latéraux est facilité par le poids de corps mobile. Un corps mobile inférieur (12) d'une grue (10) est pourvu d'un châssis de camion (50), d'un châssis latéral gauche (511) et d'un châssis latéral droit (521), et d'un poids côté avant (53) et d'un poids côté arrière (54). Le poids côté avant (53) et le poids côté arrière (54) sont pourvus d'un poids inférieur (61) et d'un poids supérieur (62), respectivement. La partie de surface supérieure du poids supérieur (62) s'étend en continu dans la direction gauche-droite de façon à former une voie de passage entre la paire de châssis latéraux.
PCT/JP2018/002972 2017-02-02 2018-01-30 Engin de chantier WO2018143197A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/481,981 US11148916B2 (en) 2017-02-02 2018-01-30 Construction machine
EP18748783.0A EP3556717B1 (fr) 2017-02-02 2018-01-30 Engin de chantier

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017017514 2017-02-02
JP2017-017514 2017-02-02
JP2018-002534 2018-01-11
JP2018002534A JP6787350B2 (ja) 2017-02-02 2018-01-11 建設機械

Publications (1)

Publication Number Publication Date
WO2018143197A1 true WO2018143197A1 (fr) 2018-08-09

Family

ID=63040535

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/002972 WO2018143197A1 (fr) 2017-02-02 2018-01-30 Engin de chantier

Country Status (1)

Country Link
WO (1) WO2018143197A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018123005A (ja) * 2017-02-02 2018-08-09 コベルコ建機株式会社 建設機械

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000255986A (ja) * 1999-03-09 2000-09-19 Hitachi Constr Mach Co Ltd 建設機械のスイングロック取付け構造
JP2001171978A (ja) * 1999-12-20 2001-06-26 Hitachi Constr Mach Co Ltd ホイール式建設機械
JP2004203501A (ja) * 2002-12-24 2004-07-22 Toyota Industries Corp 産業車両用の重量調整型カウンタウエイト
JP2006219241A (ja) 2005-02-09 2006-08-24 Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd 建設機械
JP2012111618A (ja) * 2010-11-26 2012-06-14 Kobelco Cranes Co Ltd クローラ式走行体
US20160289047A1 (en) * 2015-03-31 2016-10-06 Manitowoc Crane Companies, Llc System and method for crane counterweight positioning

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000255986A (ja) * 1999-03-09 2000-09-19 Hitachi Constr Mach Co Ltd 建設機械のスイングロック取付け構造
JP2001171978A (ja) * 1999-12-20 2001-06-26 Hitachi Constr Mach Co Ltd ホイール式建設機械
JP2004203501A (ja) * 2002-12-24 2004-07-22 Toyota Industries Corp 産業車両用の重量調整型カウンタウエイト
JP2006219241A (ja) 2005-02-09 2006-08-24 Hitachi Sumitomo Heavy Industries Construction Crane Co Ltd 建設機械
JP2012111618A (ja) * 2010-11-26 2012-06-14 Kobelco Cranes Co Ltd クローラ式走行体
US20160289047A1 (en) * 2015-03-31 2016-10-06 Manitowoc Crane Companies, Llc System and method for crane counterweight positioning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018123005A (ja) * 2017-02-02 2018-08-09 コベルコ建機株式会社 建設機械

Similar Documents

Publication Publication Date Title
JP6787350B2 (ja) 建設機械
WO2018143193A1 (fr) Engin de chantier
JP4619147B2 (ja) 建設機械
JP6829143B2 (ja) クライミングクレーン
JP2007112526A (ja) 自走式小型クレーン
WO2018143197A1 (fr) Engin de chantier
US20140175039A1 (en) Construction Machinery Body
JP2016108118A (ja) カウンタウエイト装置および作業機械
JP6460132B2 (ja) 建設機械
JP5473294B2 (ja) 天井クレーンの据付け方法及び据付けシステム
KR200402250Y1 (ko) 크레인용 인양물의 무게중심 조정장치
JP2021147123A (ja) カウンタウエイトおよびカウンタウエイトの移動方法
JP2003201089A (ja) 自走式クレーンおよびその自力着脱方法
JP4353343B2 (ja) 大型昇降ステージとこれを用いた揚重方法および逆打工法
AU2021262054B2 (en) Assembly method for crane
JP6703758B2 (ja) 建設機械
JP4684007B2 (ja) 建設機械のジャッキアップ装置
JP6565949B2 (ja) 建設機械
JP2006016208A5 (fr)
JP7230895B2 (ja) クレーンの連結ビーム
JPH085197Y2 (ja) シヤトルブーム式ジブクレーン
JP6622514B2 (ja) 建設機械およびカーボディウエイトの取付方法
JP2003118977A (ja) 油圧クレーンのジブ格納装置
JP7396211B2 (ja) 建設機械
JP7491121B2 (ja) 作業機械の起伏シリンダ支持装置および作業機械の起伏シリンダ支持方法、作業機械の輸送方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18748783

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018748783

Country of ref document: EP

Effective date: 20190718

NENP Non-entry into the national phase

Ref country code: DE