EP3487798A1 - Führungsrolle und transportvorrichtung mit mehreren rollen - Google Patents

Führungsrolle und transportvorrichtung mit mehreren rollen

Info

Publication number
EP3487798A1
EP3487798A1 EP17746394.0A EP17746394A EP3487798A1 EP 3487798 A1 EP3487798 A1 EP 3487798A1 EP 17746394 A EP17746394 A EP 17746394A EP 3487798 A1 EP3487798 A1 EP 3487798A1
Authority
EP
European Patent Office
Prior art keywords
roller
contact surface
rollers
notch
central portion
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.)
Granted
Application number
EP17746394.0A
Other languages
English (en)
French (fr)
Other versions
EP3487798B1 (de
Inventor
Paul HORNICK
Gilles PILLONEL
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.)
Bobst Mex SA
Original Assignee
Bobst Mex SA
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 Bobst Mex SA filed Critical Bobst Mex SA
Publication of EP3487798A1 publication Critical patent/EP3487798A1/de
Application granted granted Critical
Publication of EP3487798B1 publication Critical patent/EP3487798B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/046—Feeding sheets or blanks involving changing orientation or changing direction of transport
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/112—Means for varying cross-section
    • B65H2404/1122—Means for varying cross-section for rendering elastically deformable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/117—Details of cross-section or profile comprising hollow portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1314—Details of longitudinal profile shape convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/132—Details of longitudinal profile arrangement of segments along axis
    • B65H2404/1321—Segments juxtaposed along axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to a roller for guiding a sheet by friction.
  • the present invention relates to a transport device comprising such rollers for transporting sheets by friction.
  • the present invention may for example apply to the field of the manufacture of foldable boxes from cardboard sheets, the roller then serving to guide each sheet of cardboard.
  • a foldable box may for example be a carton of packaging.
  • cardboard sheets are moved along a production line.
  • the present invention can be applied in other fields requiring the registration of sheet-like objects such as sheets, wooden boards, plastic sheets, etc.
  • EP1837298 discloses a transport device comprising a plurality of rollers for pushing sheets by friction.
  • Each roller has i) an outer surface contacting the sheet, ii) a central bore for a rotational drive of the roller, and iii) an elastically deformable portion located between the outer contact surface and the central bore.
  • the present invention is intended in particular to solve, in whole or in part, the problems mentioned above.
  • the present invention relates to a roller for guiding a sheet by friction.
  • the roller shows: a contact surface intended to be in contact with the sheet, the contact surface generally having a shape of revolution when the roller is at rest,
  • a central portion configured to mechanically connect the roller to a rotating drive member
  • a deformation portion located between the contact surface and the central portion, the deformation portion being configured to deform elastically when the roller guides the sheet by friction.
  • the roller is characterized in that the deformation portion comprises at least one notch extending from the contact surface to the central portion, the notch being arranged so that the deformation portion comprises at least one elastically deformable segment.
  • such a roller offers greater compliance or lateral flexibility than a roller of the state of the art.
  • the or each cut defines on the roller one or more elastically deformable segments which can flex in the axial direction, independently.
  • this independence of deflection makes it possible to release excessive mechanical stresses as soon as an elastically deformable segment is no longer in contact with the sheet.
  • the roller releases the stresses six times per revolution.
  • a roller has a lateral flexibility allowing an alignment of the sheet against a stop, so as to ensure its location before a treatment of the sheet, for example printing, cutting, laminating or folding-gluing.
  • the contact surface is a surface of the roller which is the outermost radially, that is to say the furthest away from the axis of revolution of the contact surface.
  • the axis of the cylinder forming the contact surface coincides with the axis of rotation of the roller when the roller is in the service configuration.
  • the central portion may have retention members configured to retain the or each rotational bearing.
  • the retaining members can be formed by a roller cage.
  • the deformation portion of the roller comprises an outer ring and several connecting members mechanically connecting the central portion and the outer ring, at least one notch extending through the outer ring so as to interrupt the outer ring. at least one time.
  • Each connecting member extends at least in a radial direction.
  • Each connecting member may also extend in another direction, for example in a tangential direction and / or in an axial direction.
  • each connecting member substantially forms a radius for the roller.
  • the roller has openings respectively between two consecutive connecting members.
  • the roller has a reduced weight.
  • the deformation portion is full. In other words, the deformation portion continuously fills the space between the central portion and the contact surface.
  • several link members of the roller are formed by spring blades.
  • the roller comprises recesses located respectively between two consecutive connecting members.
  • several recesses each have a rounded shape.
  • the stresses are reduced and the life of the rollers is increased.
  • several recesses each have the overall shape of a cylinder extending parallel to an axial direction of the roller.
  • a plurality of recesses each have a triangular shape pointing substantially towards the central portion.
  • the recesses can be filled by a more elastically deformable material than the connecting members.
  • the contact surface of the roller generally has the shape of a cylinder.
  • a contact surface may have a large area in contact with the sheets.
  • the contact surface generally has the shape of a torus portion.
  • the number of notches of the roller is greater than or equal to two, for example equal to seven.
  • the roller makes it possible to release the stresses several times per revolution, thus to increase the angle of jogging and to align the guided sheet faster.
  • the notches of the roller are evenly distributed around the central portion, on the perimeter formed by the contact surface.
  • such an arrangement of the notches makes it possible to distribute the mechanical stresses on the roller.
  • the notches are uniformly distributed around the axis of rotation of the roller, when the roller is at rest.
  • At least one notch of the roller is configured so that the intersection of the notch with the contact surface forms a segment rectilinear and parallel to the axis of revolution of the contact surface.
  • the roller is simple to manufacture. It can for example be extruded or cut with water.
  • At least one notch of the roller is configured so that the intersection of the notch with the contact surface forms a segment oblique to the axis of revolution of the contact surface.
  • At least one notch of the roller extends parallel to a plane including the oblique segment.
  • a notch when such a notch is relatively thin, it has a generally flat shape.
  • at least one notch may have a generally curved shape.
  • the roller with its entailes can accommodate at least two disks.
  • a roller divided into several discs still offers greater lateral flexibility.
  • the discs are added to the notches and define on the roller one or more elastically deformable segments that can flex in the axial direction, independently.
  • Such a disk roller has lateral flexibility, each disk bending independently of each other. Thus, this independence of deflection of the disks between them makes it possible to release excessive mechanical stresses, as soon as a disk segment, situated between two notches, and elastically deformable, is no longer in contact with the sheet.
  • a disc roller permits transport and alignment of the sheet, regardless of the position of the sheet initially.
  • the discs are coaxial, the discs are parallel to each other, the discs are of the same thickness, the discs are spaced from each other, and the discs are equidistant from each other.
  • the present invention relates to a transport device, for frictionally transporting sheets, for example cardboard sheets for composing foldable boxes, the transport device comprising a stop and several rollers as described and claimed, the rollers being inclined so as to guide and align each sheet against the stop.
  • the transport device comprises at least two pairs of rollers as described and claimed, each pair of rollers including an upper roller and a lower roller arranged face to face so as to grip a sheet, the transport device comprising in in addition to a rotational drive member integral with the central portion of at least one of the rollers of each pair of rollers, so that the rotational driving member can transmit a torque to at least one of the rollers of each pair of rollers.
  • the transport device furthermore comprises a rotational drive element integral with the central portion so that the rotational drive member can transmit a torque to the roller.
  • FIG. 1 and 2 respectively show a perspective view, at two different angles, of a roller according to a first embodiment of the invention
  • FIG. 3 shows a side view of the roller of Figures 1 and 2;
  • FIG. 4 shows a sectional view along the plane IV - IV of the roller of Figure 3;
  • FIG. 5 shows a view similar to Figure 4 of the roller of Figure 4 equipped with ball bearings
  • Figures 8 and 9 show respectively a perspective view, and a side view with transparency, of a roller according to a third embodiment of the invention.
  • FIG. 10 and 1 1 show respectively a perspective view, and a side view of a roller according to a fourth embodiment of the invention
  • FIG. 12 shows a perspective view of a roller according to a fifth embodiment of the invention.
  • FIG. 13 shows a sectional view along the XIII plane of the roller of Figure 12;
  • - Figure 14 shows a partial perspective view of a roller according to a sixth embodiment of the invention, mounted in a transport device;
  • FIG. 16 shows a sectional view along the plane XVI of the roller of Figure 14;
  • FIG. 17 shows a sectional view of a roller according to a seventh embodiment of the invention.
  • FIG. 18 shows a perspective view of a transport device according to the invention comprising a plurality of idle rollers and a plurality of drive rollers according to the invention
  • Figure 19 is a side view of a pair of rollers of the transport device of Figure 18.
  • FIG. 20 shows a sectional view along the plane XX of the pair of rollers of Figure 19.
  • Figs. 1 to 5 illustrate a roller 1 for guiding a sheet 101 by friction.
  • the roller 1 has a contact surface 2 intended to be in contact with a sheet 101.
  • the contact surface 2 globally has a shape of revolution when the roller 1 is at rest. In this case, the contact surface 2 has the overall shape of a cylinder.
  • the contact surface 2 is here the surface of the roller 1 which is the outermost radially, that is to say the furthest from the axis of revolution X2 of the contact surface 2.
  • the axis of the cylinder forming the contact surface 2 coincides with the axis of rotation of the roller 1 when the roller 1 is at rest.
  • the roller is at least partially composed of a flexible material, for example a polyurethane.
  • a roller according to the invention may have:
  • the roller 1 has a central portion 6 which is configured to mechanically connect the roller 1 to a rotating drive member as shown in Figs. 13 to 16.
  • the roller 1 has a deformation portion 10 which is located between the contact surface 2 and the central portion 6.
  • the deformation portion 10 is configured to deform elastically when the roller 1 guides the sheet 101 by friction.
  • the deformation portion 10 here has six notches 12. Each of the notches 12 extends from the contact surface 2 to the central portion 6. Each notch 12 is arranged so that the deformation portion 10 here comprises six elastically deformable segments 16 The notches 12 are here uniformly distributed around the central portion 6.
  • the deformation portion 10 comprises an outer ring 18 and a plurality of connecting members 11.
  • the link members 1 1 .1 mechanically connect the central portion 6 and the outer ring 18.
  • the notches 12 extend through the outer ring 18 so as to interrupt the outer ring 18 six times.
  • Each link member 1 1 .1 substantially forms a radius for the roller 1.
  • the roller 1 has recesses January 1 located respectively between two consecutive connecting members 1 1 .1.
  • Each recess 1 1 .2 has a triangular shape pointing substantially towards the central portion 6.
  • each notch 12 is configured so that the intersection of this notch 12 with the contact surface 2 forms a rectilinear segment and parallel to the axis of revolution X2 of the contact surface 2.
  • Figs. 6 and 7 illustrate a roller 1 according to a second embodiment.
  • the description of the roller 1 given above in relation to FIG. 1 may be transposed to the roller 1 of Figs. 6 and 7, except for the notable differences mentioned below.
  • the roller 1 of Figs. 6 and 7 differs from the roller 1 of FIG. 1, because the deformation portion 10 has two notches 12, instead of six, which extend from the contact surface 2 to the central portion 6.
  • the roller 1 of Figs. 6 and 7 differs from the roller 1 of FIG. 1, because the deformation portion 10 has no recesses. On the contrary, the deformation portion 10 is full.
  • the deformation portion 10 is configured to deform elastically when the roller 1 guides the sheet 101 by friction.
  • Figs. 8 and 9 illustrate a roller 1 according to a third embodiment.
  • the description of the roller 1 given above in relation to FIG. 1 may be transposed to the roller 1 of Figs. 8 and 9, except for the notable differences mentioned below.
  • the roller 1 of Figs. 8 and 9 differs from the roller 1 of FIG. 1, because each notch 12 is configured so that the intersection of this notch 12 with the contact surface 2 forms a segment oblique to the axis of revolution X2 of the contact surface 2. As shown in FIG. 8, each notch 12 extends parallel to a plane P12 which includes the oblique segment.
  • Figs. 10 and 1 1 illustrate a roller 1 according to a fourth embodiment.
  • the roller 1 of Figs. 10 and 1 1 differs from the roller 1 of FIG. 1, because each recess 1 1 .2 has a rounded shape, to reduce the mechanical stresses.
  • Each recess 1 1 .2 has the overall shape of a cylinder extending parallel to an axial direction X2 of the roller 1.
  • the central portion 6 has a groove 6.0 configured to receive a not shown key. The groove 6.0 extends parallel to the axial direction X2.
  • Figs. 12 and 13 illustrate a roller 1 according to a fifth embodiment.
  • the description of the roller 1 given above in relation to FIG. 1 may be transposed to the roller 1 of Figs. 12 and 13, except for the notable differences mentioned below.
  • the roller 1 of Figs. 12 and 13 differs from the roller 1 of FIG. 1, since each connecting member 1 1 .1 is formed by a respective leaf spring.
  • each recess 1 1 .2 has a triangular shape pointing substantially towards the central portion 6.
  • Figs. 14 to 16 illustrate a roller 1 according to a sixth embodiment.
  • Six notches 12 extend from the contact surface 2 to the central portion 6.
  • Each notch 12 is configured so that the intersection of this notch 12 with the contact surface 2 forms a rectilinear segment and parallel to the axis of contact. X2 revolution of the contact surface 2.
  • the description of the roller 1 given above in relation to FIG. 1 may be transposed to the roller 1 of Figs. 14 to 16, except for the notable differences mentioned below.
  • the roller 1 of Figs. 14 to 16 differs from the roller 1 of FIG. 1, first because each recess 1 1 .2 is found in the extension of each of the notches 12.
  • each recess 1 1 .2 has an elongate shape, pointing substantially towards the central portion 6, and having a spacing greater than the spacing W12 of the corresponding notch 12.
  • the roller 1 is formed with at least two disks 19, parallel to each other, coaxial, and spaced from each other.
  • the discs 19 are of the same thickness, equidistant from each other, and held on the central hub 20.
  • the space between two discs 19 extends from the contact surface 2 to the central portion 6.
  • the notches 12 of the roller 1 are formed on the surface of one or more discs 19 uniformly around the central portion 6, on the perimeter formed by the contact surface 2.
  • the roller 1 of the sixth embodiment comprises four discs 19.
  • the deformation portion 10, and thus the contact surface 2, of the roller 1 are thus divided along the width W2 into four.
  • the contact surface 2 comprises twenty-four elastically deformable segments 16.
  • the notches 12 of a disk 19 are shifted from the teeth of the disk immediately. adjacent.
  • the roller 1 of the seventh embodiment of FIG. 17 differs from the roller 1 of FIG. 1, because it is formed of six disks 19, parallel to each other, coaxial, and spaced apart from each other.
  • the six discs 19 are of the same thickness, equidistant from each other, and held on the central hub 20.
  • the deformation portion 10, and thus the contact surface 2 of the roller 1, are thus divided along the width W2 into six .
  • the contact surface 2 comprises thirty-six elastically deformable segments 16.
  • Figs. 18, 19 and 20 illustrate a transport device 100 according to the invention.
  • the transport device 100 is used to convey friction sheets 101, here cardboard sheets for composing foldable boxes.
  • the transport device 100 comprises a stop 102 and several pairs of rollers 1a and 1b, including idler rollers 1a and drive rollers 1b.
  • the rollers 1a and 1b are inclined towards the stop 102, so as to guide, to bring and to align each sheet 101 against this stop 102.
  • a tangent to the contact surface 2 of the rollers 1a and 1b is thus different from the main longitudinal axis of leaf transport.
  • the tangent to the contact surface 2 is oriented toward the stop 102.
  • Each pair of rollers 1 comprises an upper roller 1a and a lower roller
  • the transport device 100 further comprises, for the lower rollers 1b, a rotational drive member 104 which is integral with the central portion 6, so that the rotational drive member 104 can transmit a torque to the roller 1 when the rotational drive member 104 is connected to an actuator.
  • the transport device 100 further comprises rotational drive members which are secured respectively to the central portions of the rollers of each pair of rollers 1a and 1b, so that the rotary drive member can transmit a torque at least one of the rollers 1 of each pair of rollers 1a and 1b.
  • the drive member may comprise a belt 104.
  • the upper rollers 1a are held by an upper spar 105.
  • the lower rollers 1b are held by a lower spar 106.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Paper Feeding For Electrophotography (AREA)
EP17746394.0A 2016-07-19 2017-07-12 Führungsrolle und transportvorrichtung, die mehrere solche rollen umfasst Active EP3487798B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16020275 2016-07-19
PCT/EP2017/025200 WO2018015025A1 (fr) 2016-07-19 2017-07-12 Galet de guidage et dispositif de transport compremant plusieurs galets

Publications (2)

Publication Number Publication Date
EP3487798A1 true EP3487798A1 (de) 2019-05-29
EP3487798B1 EP3487798B1 (de) 2021-05-05

Family

ID=56507380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17746394.0A Active EP3487798B1 (de) 2016-07-19 2017-07-12 Führungsrolle und transportvorrichtung, die mehrere solche rollen umfasst

Country Status (10)

Country Link
US (1) US11465869B2 (de)
EP (1) EP3487798B1 (de)
JP (1) JP6918918B2 (de)
KR (1) KR102149624B1 (de)
CN (1) CN109715539B (de)
BR (1) BR112019000992B1 (de)
CA (1) CA3031221C (de)
ES (1) ES2874303T3 (de)
TW (1) TWI639547B (de)
WO (1) WO2018015025A1 (de)

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KR102245464B1 (ko) * 2019-06-05 2021-04-28 주식회사 보성산업롤 모듈형 탄성롤
KR102579993B1 (ko) * 2020-03-11 2023-09-21 이상규 탄성롤

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Also Published As

Publication number Publication date
JP6918918B2 (ja) 2021-08-11
WO2018015025A1 (fr) 2018-01-25
ES2874303T3 (es) 2021-11-04
TWI639547B (zh) 2018-11-01
EP3487798B1 (de) 2021-05-05
KR20190026919A (ko) 2019-03-13
TW201805223A (zh) 2018-02-16
US11465869B2 (en) 2022-10-11
CA3031221A1 (en) 2018-01-25
BR112019000992A2 (pt) 2019-05-14
KR102149624B1 (ko) 2020-08-31
US20210292123A1 (en) 2021-09-23
CA3031221C (en) 2021-10-26
BR112019000992B1 (pt) 2022-12-06
CN109715539B (zh) 2021-07-30
CN109715539A (zh) 2019-05-03
JP2019523199A (ja) 2019-08-22

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