WO2019097923A1 - Patin de chenille en caoutchouc - Google Patents

Patin de chenille en caoutchouc Download PDF

Info

Publication number
WO2019097923A1
WO2019097923A1 PCT/JP2018/038340 JP2018038340W WO2019097923A1 WO 2019097923 A1 WO2019097923 A1 WO 2019097923A1 JP 2018038340 W JP2018038340 W JP 2018038340W WO 2019097923 A1 WO2019097923 A1 WO 2019097923A1
Authority
WO
WIPO (PCT)
Prior art keywords
crawler
passing surface
wheel
main body
area
Prior art date
Application number
PCT/JP2018/038340
Other languages
English (en)
Japanese (ja)
Inventor
穣 安孫子
Original Assignee
株式会社ブリヂストン
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 株式会社ブリヂストン filed Critical 株式会社ブリヂストン
Publication of WO2019097923A1 publication Critical patent/WO2019097923A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
    • B62D55/253—Tracks of continuously flexible type, e.g. rubber belts having elements interconnected by one or more cables or like elements

Definitions

  • the present invention relates to a rubber crawler, and more particularly to a rubber crawler having a roller wheel passing surface on the inner peripheral surface of a crawler body.
  • the rubber crawler is an endless track made of rubber, and has been actively researched and developed since it was first developed as a component for agricultural equipment, and is now widely used and expanded in various applications, and its configuration and type It is diverse.
  • FIG. 7 illustrates an example of the rubber crawler
  • FIG. 7 (a) is a plan view of the inner peripheral surface 54 of the crawler main body of the rubber crawler 46
  • FIG. 7 (b) is an A- of FIG. It is A sectional drawing.
  • FIG. 7 only a half of the rubber crawler 46 in the width direction of the crawler body is shown at the portion where the core metal 48 is embedded.
  • core bars 48 are embedded in the circumferential direction at predetermined intervals, and each of the core bars 52 is provided with a guide projection 50 for guiding a rolling wheel.
  • the metal core 52 has a substantially rectangular shape in a plan view, but as shown in the cross-sectional view of FIG. 7B, the guide projection 50 is located above the inner peripheral surface side of the crawler body near the center in the width direction.
  • a lug 58 is provided protrudingly provided on the outer peripheral surface side of the crawler main body for traveling on a farmland, a construction site or the like.
  • a wheel passing surface 52 through which the rollers pass is continuously formed in the circumferential direction of the crawler body so as to have a predetermined width.
  • the width of the wheel passing surface 52 is set wider than the width of the normal wheel.
  • FIG. 8 is a cross-sectional view taken along the line B-B in FIG.
  • the wheel passing surface 52 and the contact surface of the lug 58 are substantially parallel.
  • the roller 26 sinks into the roller passing surface 52 due to the vehicle load as described above, but when the roller 26 sinks, the roller 26 is rotated.
  • a scratch is formed by the edge of the wheel. The occurrence of the scratch may occur in the presence or absence of the core 48. Since the life of the rubber crawler 46 is shortened when the wheel passing surface 52 is damaged by the edge of the wheel 26, the prevention of the generation of the wound has been desired.
  • the present invention has been made in view of the above problems, and an object of the present invention is to prevent partial damage such as worming without causing edge damage due to the rolling wheel on the rolling wheel passing surface of the rubber crawler. It is to provide a rubber crawler that can
  • the rubber crawler according to claim 1 is Rubber having an endless belt-like crawler main body, lugs formed protruding from the outer peripheral surface of the crawler main body at a predetermined interval, and a wheel passing surface through which a roller provided on the inner peripheral surface of the crawler main body passes In the crawler,
  • the rolling wheel passage surface is provided with a notch at the widthwise outer end edge of the crawler wheel passing surface of the rolling wheel passage surface such that the width of the rolling wheel passage surface is smaller than the width of the rolling wheel.
  • the plurality of notches are provided at predetermined intervals in the circumferential direction of the crawler main body.
  • a plurality of areas having a width smaller than the width of the rolling wheel exist in the circumferential direction due to the formation of the notches in the rolling wheel passage surface. Therefore, when the rolling wheel passes through the rolling wheel passing surface, the rolling of the rolling wheel lowers due to the vehicle body load and the rolling wheel passing surface deforms, but there is a notch, so rolling by rolling of the rolling wheel The deformation of the wheel passage is also absorbed in the space of the recess. Therefore, it is possible to prevent the formation of continuous edge flaws on the surface of the wheel passing surface, and to alleviate the occurrence of edge flaws in the portion where the notch is not formed.
  • the rubber crawler according to claim 2 is the rubber crawler according to claim 1.
  • a core metal is embedded in the crawler main body at predetermined intervals in the circumferential direction of the crawler main body so that right and left wings of the core metal extend in the width direction of the crawler main body,
  • the present invention is characterized in that the inner peripheral surface of the region where the core metal does not exist in the thickness direction of the crawler main body.
  • the core metal embedded area and the installation area of the notch do not overlap. Due to the presence of the core, the pressing force by the rolling wheel is increased at that portion, but the rolling wheel passing surface of the embedded area of the core is not smaller than the width of the rolling wheel, so the per unit area of that portion An increase in pressure can be avoided and partial damage such as so-called worming can be avoided. Therefore, while protecting the wheel passing surface of the embedded area of the core metal portion, protection by permitting or absorbing the deformation of the wheel passing surface by the notch portion is achieved.
  • the embedded area of the core metal and the installation area of the notch portion are sufficient if they do not substantially overlap, and the function of the present invention can be exhibited even if there is an overlapped area.
  • the rubber crawler according to claim 3 is the rubber crawler according to claim 2.
  • the formation area of the notched portion is the area of the inner peripheral surface opposite to the area where the lugs are present, and the area where the wheel passing surface is present, the contact surface area of the core metal and the lugs And H. are arranged so as not to overlap in the thickness direction.
  • the notch is provided to overlap with the formation region of the lug, and the contact surface of the lug does not exist in the region in the thickness direction where the core metal is present.
  • the rolling wheel passing surface where the notch portion is present has a lug on the opposite side, and the contact surface of the lug and the core metal do not overlap Therefore, the deformation of the roller passing surface due to the pressing force of the rollers and the lugs occurs uniformly because there is no core metal in the thickness direction.
  • the contact surface area of the core metal and the lug is sufficient if it does not substantially overlap in the area in the thickness direction of the wheel passing surface, and the function of the present invention can be exhibited even if there is an overlapping area. It is.
  • the rubber crawler according to claim 4 is the rubber crawler according to claim 3.
  • the lug extends at an angle with respect to a direction orthogonal to the circumferential direction of the crawler body, and one end portion of the lug is a region where the roller passing surface in which the notch portion is formed is present and the thickness is The overlapping area in the longitudinal direction and the other end are formed on the outer peripheral surface of the overlapping area in the thickness direction with the installation area of one end of the core metal adjacent in the circumferential direction of the crawler body.
  • This configuration corresponds to a rubber crawler that enhances the grip of the lug like a rubber crawler or the like when traveling on a hard ground, and the lug is inclined with respect to the direction orthogonal to the circumferential direction of the crawler body. And one end of the lug is formed in the area where the notch is formed, and the other end is formed in the area of one end of the adjacent core metal.
  • the rubber crawler according to claim 5 is the rubber crawler according to claim 4. Between the other ends of the lugs adjacent in the circumferential direction of the crawler body, the outer peripheral surface of the crawler body in the area where the core metal does not exist extends in the width direction to the edge of the crawler body A recess is formed.
  • the end of the lug is in the area where the notch is formed, and the other end is the area of the end of the metal core adjacent to one another.
  • Increase in the bending stiffness of the rubber crawler caused by the presence of That is, in the region of the widthwise end of the cored bar, since the recess extending in the widthwise direction to the edge of the crawler main body is formed on the outer peripheral surface of the crawler main body between the cored bars, the bending rigidity can be reduced.
  • the recess is a portion where a member constituting the crawler main body is lightened. Therefore, it is possible to reduce the bending rigidity of the rubber crawler requiring the grip of a strong lug while suppressing the occurrence of rolling wheel edge flaws.
  • a plurality of notches for reducing the width of the rolling wheel passing surface than the width of the rolling wheel are provided at a predetermined location, so the configuration of the rolling wheel passing surface by the pressing force when passing the rolling wheel. The deformation of the member is allowed to be absorbed in the space of the notch and the occurrence of the edge flaw of the rolling wheel is effectively prevented.
  • FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 according to the first embodiment of the rubber crawler of the present invention. It concerns on 2nd embodiment of the rubber crawler of this invention, and is a top view of the internal peripheral surface of a crawler main body. It concerns on 2nd Embodiment of the rubber crawler of this invention, and is a top view of the outer peripheral surface of a crawler main body.
  • FIG. 7 (b) is a cross-sectional view taken along a line BB in FIG. 7 (b), showing a time when a roller is passed, according to a conventional rubber crawler.
  • the first embodiment shows a case where the present invention is applied to a rubber crawler requiring a grip force such as traveling on a hard ground.
  • FIG. 1 is a plan view of the inner peripheral surface of the rubber crawler
  • FIG. 2 is a plan view of the outer peripheral surface of the rubber crawler shown in FIG.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG.
  • the core metal 12 is embedded in the crawler main body at equal intervals in the circumferential direction.
  • the cored bar 12 has right and left wing portions in the width direction of the crawler body, and in the center portion, there are formed rolling wheel guiding projections 14 projecting to the inner peripheral surface side of the crawler body. .
  • a wheel passing surface 16 through which the wheel passes is formed on both outer sides in the width direction of the crawler body of the wheel guiding projection portion 14.
  • the rolling wheel passing surface 16 is continuously formed in the circumferential direction of the crawler body, but as shown in the drawing, a notch is formed in the width direction outer edge of the crawler body in a portion where the core 12 is not directly below In the area where the notch 24 is provided, the width of the wheel passing surface 16 is smaller than that of the wheel. That is, there are a plurality of regions in the circumferential direction of the crawler body on the rolling wheel passage surface 16 whose width is smaller than the width of the rolling wheels.
  • the shape of the notch 24 is substantially semicircular in plan view, but the shape is not limited to this as long as the width of the wheel passing surface 16 is reduced.
  • the width and pattern of the lugs 22 can be appropriately determined according to the application, and the rubber crawler of this embodiment has a width of the ground surface 22a as shown in FIG. 2 in order to enhance the grip of the lugs. It is set wider than usual, and extends obliquely with respect to the direction orthogonal to the circumferential direction of the crawler body. Further, one end of the lug 22 is formed in a region where the wheel passing surface 16 exists in the thickness direction of the outer peripheral surface of the crawler body, and the other end is a cored bar 12 adjacent in the thickness direction. It is formed in the existing area.
  • a notched portion 24 is provided on the roller passing surface 16 on the inner peripheral surface side of one end of the lug 22. That is, the lugs 22 are present in the thickness direction in the region where the notches 24 of the wheel passing surface 16 are formed, and in the region where the wheel passing surface 16 is present, the core 12 and the contact surface 22a of the lug 22 are substantially It does not overlap. In addition, it is possible to achieve the effect of the present embodiment to be described later, even if a part of the overlap is generated in the avoidance of the overlap. For example, in half or more of the width direction of the region where the wheel passing surface 16 exists, it is preferable that the contact surface 22a of the lug and the core metal 12 do not overlap in the thickness direction.
  • the rolling wheel passing surface 16 sinks downward due to the vehicle body load, and the rolling wheel passing surface 16 is deformed, but the notch portion 24 is present.
  • the deformation of the wheel passing surface 16 due to the sinking of the gear is allowed to be absorbed in the space of the notch 24. Therefore, continuous edge flaws are prevented from being formed on the surface of the wheel passing surface 16.
  • the occurrence of edge flaws in the portion where the notch 24 is not formed is also alleviated.
  • the wheel passing surface 16 in the region in which the core metal 12 is present is not smaller than the width of the rolling wheel, in the roller passing surface 16 between the rolling wheel and the core metal 12, the pressure per unit area is reduced. An increase in pressure is avoided. Therefore, partial damage such as so-called worming can also be avoided. As a result, while protecting the wheel passing surface of the embedded region of the portion of the cored bar 12, protection by absorbing the deformation of the wheel passing surface 16 by the notches 24 is achieved.
  • protection of the members on the metal core 12 is achieved while achieving the absorption of deformation of the members of the wheel passing surface 16 by the notches 24.
  • the pressing force applied is the crawler body because the contact surface 22a of the lug 22 does not exist immediately below. In the circumferential direction, adjacent lugs 22 are dispersed in the diagonal direction, and concentration of pressure is avoided.
  • one end of the lug 22 is formed on the outer peripheral surface side of the region where the wheel passing surface 16 exists, and the other end is the widthwise end of the adjacent core metal 12 Extends to the outer peripheral surface of the region of In such a configuration, there is a concern that the bending stiffness of the rubber crawler is increased.
  • the outer peripheral surface of the crawler main body between the core metal By forming the recess 28 extending in the width direction to the edge, the bending rigidity can be reduced.
  • the recess 28 is a portion where a member constituting the crawler body is lightened. Therefore, it is possible to reduce the bending rigidity of the rubber crawler requiring the grip of a strong lug while suppressing the occurrence of rolling wheel edge flaws, and it was possible to suppress the occurrence of vibration and to improve ride comfort and fuel consumption.
  • the rubber crawler of the first embodiment of the present invention in the case where a grip force of traveling on a hard ground is required, a lug structure between core bars is adopted, and a wheel passing surface where the core bar 12 does not exist directly below Since the notches 24 are formed at the outer side edge in the width direction at 16, deformation of members constituting the wheel passing surface 16 due to the pressing force when passing through the rollers is absorbed in the space of the notches 24. And the occurrence of edge flaws on the rolling wheels is effectively prevented. In addition, an increase in pressing force per unit area on the wheel passing surface between the wheel and the core metal 12 can be prevented, and partial damage such as so-called worming can be avoided. This can extend the life of the rubber crawler.
  • the configuration in which the notched portion 24 and the core metal 12 do not overlap, and the configuration in which the core metal 12 and the contact surface 22a of the lug do not overlap do not mean complete non-overlapping.
  • the effects of each of the above-described embodiments can be achieved even if the overlap occurs in part.
  • FIG. 4 is a plan view of the inner peripheral surface of the rubber crawler
  • FIG. 5 is a plan view of the outer peripheral surface of the rubber crawler shown in FIG. 6 is a cross-sectional view taken along the line AA of FIG.
  • the core metal embedded area and the installation area of the notch do not overlap, and the cutout is the area where the lug is formed. It is the same that overlapping, in the rolling wheel passage plane, the contact areas of the core metal and the lug do not overlap. However, the size of the cored bar, and the size and shape of the lugs protrudingly formed on the outer peripheral surface side of the crawler main body are different.
  • the cored bar 32 is narrow in width and short in length of the wings extending in the width direction of the crawler body, as compared with those for rubber crawlers that require a gripping force to travel on a hard ground.
  • the lugs include a long lug 42a and a short lug 42b.
  • the short lugs 42b are slightly inclined in the direction orthogonal to the circumferential direction of the crawler body, and are formed on the outer peripheral surface side of the region where the wheel passing surface 36 exists.
  • the long lugs 42a extend on the outer peripheral surface side of the region where the wheel passing surface 36 exists substantially in parallel with the short lugs 42b, and then extend to the end of the crawler main body in the direction parallel to the circumferential direction. doing.
  • the short lugs 42b are about half the length of the long lugs 42a, and the long lugs 42a and the short lugs 42b are alternately provided in the circumferential direction of the crawler body. Further, the width of the ground contact surface 42c of the lugs 42a and 42b is narrower than that of a grip requiring traveling on a hard ground, and the outer circumferential surface 40 of the crawler main body is provided with a recess as described in the first embodiment. It is not done.
  • the notched portion 44 is formed on the wheel passing surface 36 which has no core metal 32 directly below and has lugs 42a and 42b directly below, similar to a rubber crawler requiring grip power to travel on a hard ground. As compared with the notches 24 of the rubber crawler of FIG. Moreover, although the shape of the notch part 44 is substantially semicircular shape in planar view, if the width
  • the vehicle travels the hard ground of the first embodiment. It is possible to obtain the same operation and effect as described for the rubber crawler requiring a gripping force.
  • the rolling wheel passing surface 36 sinks downward due to the vehicle body load and the rolling wheel passing surface 36 is deformed, but the notch portion 44 exists.
  • the deformation of the wheel passing surface 36 due to the sinking of the gear is allowed to be absorbed in the space of the notch 44. Therefore, continuous edge flaws are prevented from being formed on the surface of the wheel passing surface 36.
  • the occurrence of edge flaws in the portion where the notch 44 is not formed is also alleviated.
  • the wheel passing surface 36 in the region where the core metal 32 is present is not smaller than the width of the rolling wheel, the wheel passing surface 36 between the rolling wheel and the core metal 32 has a pressure per unit area An increase in pressure is avoided. Therefore, partial damage such as so-called worming can also be avoided. As a result, while protecting the wheel passing surface of the embedded region of the portion of the cored bar 32, protection by permitting or absorbing the deformation of the wheel passing surface 36 by the notch portion 44 is achieved.
  • protection of the members on the cored bar 32 is achieved while achieving the absorption of deformation of the members constituting the wheel passing surface 36 by the notches 44.
  • the pressing force is It disperses in the diagonal direction in which the adjacent lugs 42a and 42b exist in the circumferential direction of the crawler body, and concentration of pressure is avoided.
  • the core metal 32 has a small width in the circumferential direction of the crawler body and a small length of the wings extending in the width direction, the weight of the rubber crawler 30 can be reduced, and the core metal 32 and lugs Since there is no overlap in the thickness direction of the contact surfaces 42a and 42b with the contact surface 42c, the bending rigidity of the crawler body can be reduced.
  • the rubber crawler of the second embodiment of the present invention in the case of traveling on a relatively soft ground such as rice straw, a lug structure between the core bars is adopted, and the rolling wheel without the core bar 32 directly below Since the notch 44 is formed in the widthwise outer end edge of the passage surface 36, the deformation of the member constituting the roller passage surface 36 due to the pressing force at the time of passing the rollers is the space of the notch 44. Permissible absorption, and the occurrence of the edge flaws of the rolling wheels can be effectively prevented. In addition, an increase in pressing force per unit area on the wheel passing surface between the wheel and the core metal 32 can be prevented, and partial damage such as so-called worming can be avoided. This can extend the life of the rubber crawler.
  • the configuration in which the notched portion 44 and the core metal 32 do not overlap, and the configuration in which the core metal 32 and the contact surface 42c of the lug do not overlap do not mean complete non-overlapping.
  • the effects of each of the above-described embodiments can be achieved even if the overlap occurs in part.
  • the rubber crawler is shown when traveling on a hard ground and when traveling on a soft ground, but is not limited thereto.
  • the shape of the notch may be another shape as long as it reduces the width of the wheel passing surface.
  • the notch may be triangular, rectangular or trapezoidal. In particular, if it is configured in a curvilinear shape, it is more preferable that cracking is less likely to occur than in the case of a rectangle or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un patin de chenille en caoutchouc caractérisé en ce qu'aucun dommage, provoqué par un galet de chenille, n'affecte le bord de la surface de passage du galet de chenille de celui-ci et en ce que des dommages partiels, tels que le poinçonnage de la surface de passage du galet de chenille, peuvent être évités. La solution selon la présente invention consiste en un patin de chenille en caoutchouc qui comprend un corps principal de patin de chenille en forme de courroie sans fin, des ergots formés en saillie sur la surface périphérique externe du corps principal du patin de chenille en caoutchouc à des intervalles prédéterminés, et une surface de passage de galet de chenille (16) qui est disposée sur la surface périphérique interne du corps principal du patin de chenille et sur laquelle passe un galet de chenille. Le patin de chenille en caoutchouc est caractérisé en ce que la surface de passage du galet de chenille (16) est pourvue de parties découpées (24) sur ses bords extérieurs dans le sens de la largeur du corps principal du patin de chenille de façon à ce que la largeur de la surface de passage du galet de chenille soit inférieure à la largeur du galet de chenille et en ce que les parties découpées (24) sont disposées en pluralité à des intervalles prédéterminés sur la circonférence du corps principal du patin de chenille.
PCT/JP2018/038340 2017-11-15 2018-10-15 Patin de chenille en caoutchouc WO2019097923A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-219667 2017-11-15
JP2017219667A JP2021014132A (ja) 2017-11-15 2017-11-15 ゴムクローラ

Publications (1)

Publication Number Publication Date
WO2019097923A1 true WO2019097923A1 (fr) 2019-05-23

Family

ID=66539735

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/038340 WO2019097923A1 (fr) 2017-11-15 2018-10-15 Patin de chenille en caoutchouc

Country Status (2)

Country Link
JP (1) JP2021014132A (fr)
WO (1) WO2019097923A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006159943A (ja) * 2004-12-02 2006-06-22 Bridgestone Corp ゴムクロ−ラ
WO2016185670A1 (fr) * 2015-05-21 2016-11-24 株式会社ブリヂストン Chenille élastique et dispositif à chenille élastique
WO2017017958A1 (fr) * 2015-07-30 2017-02-02 株式会社ブリヂストン Chenille élastique
WO2017017957A1 (fr) * 2015-07-30 2017-02-02 株式会社ブリヂストン Chenille élastique et dispositif à chenille élastique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006159943A (ja) * 2004-12-02 2006-06-22 Bridgestone Corp ゴムクロ−ラ
WO2016185670A1 (fr) * 2015-05-21 2016-11-24 株式会社ブリヂストン Chenille élastique et dispositif à chenille élastique
WO2017017958A1 (fr) * 2015-07-30 2017-02-02 株式会社ブリヂストン Chenille élastique
WO2017017957A1 (fr) * 2015-07-30 2017-02-02 株式会社ブリヂストン Chenille élastique et dispositif à chenille élastique

Also Published As

Publication number Publication date
JP2021014132A (ja) 2021-02-12

Similar Documents

Publication Publication Date Title
EP1820718B1 (fr) Chenille en caoutchouc sans noyau
WO2010021384A1 (fr) Chenille en caoutchouc et corps mobile de type à chenille
JP5411627B2 (ja) ゴムクローラ
JP5469163B2 (ja) ゴムクローラ
US20100013297A1 (en) Core Bar for Rubber Crawler
JP5319249B2 (ja) 弾性履帯
JP2010111355A (ja) 弾性履帯
WO2019097923A1 (fr) Patin de chenille en caoutchouc
JP6934810B2 (ja) ゴムクローラ
JP5213377B2 (ja) ゴムクローラ
JP2009255863A (ja) ゴムクローラ
JP4907230B2 (ja) 弾性履帯
JP6799127B2 (ja) 弾性クローラ
JP2007210478A (ja) ゴムクロ−ラ
WO2017017958A1 (fr) Chenille élastique
JP7043963B2 (ja) 弾性クローラ
JP2018176830A (ja) 弾性クローラ
JP5348992B2 (ja) 弾性履帯
JP7314617B2 (ja) 弾性クローラ
JP6797743B2 (ja) 弾性クローラ
JP3094882B2 (ja) 脱輪防止ゴムクロ−ラ
JP3904652B2 (ja) ゴムクロ−ラ用芯金
JP3907788B2 (ja) ゴムクロ−ラ
JPH0911937A (ja) ゴムクローラ
JPH05345581A (ja) ゴムクロ−ラ

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: 18877846

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18877846

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP