• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method for connecting a tube (3) for liquid or gaseous media with a plug connector (4), wherein a first jacket section (12) of the connector (4) is deformed by means of a pressing tool such that a between the first jacket section ( 12) and a second jacket portion (15) of the connector (4) lying pipe (3) is clamped. During the pressing process, the force applied to the pressing tool pressing force is detected and calculated from the travel of the pressing tool and the pressing force a press force increase per unit travel. The detected press force increase per travel unit is compared with an at least required increase in press force per travel unit, and if the pressure force increase per travel unit determined to be at least required is undershot, the plug connector (4) is recognized as faulty.
    公开号:AT516707A4
    申请号:T50371/2015
    申请日:2015-05-06
    公开日:2016-08-15
    发明作者:
    申请人:Henn Gmbh & Co Kg；
    IPC主号:
    专利说明:

    The invention relates to a method for connecting a tube for liquid or gaseous media with a connector.
    A compression of a connector with an end portion of a line, in which the pressing force is controlled depending on the way to different values, also called path-dependent force control, is apparent from EP 1 762 312 A1. The end portion of the line is inserted into an annular space between the inner sleeve-shaped first wall portion and the outer sleeve-shaped second wall portion, whereupon pressed with a spreading the first wall portion from the inside toward the outer wall portion against the inserted in the annular space between the two wall portions end portion of the line becomes. In this case, an annular circumferential press groove is formed in the first wall section. To ensure that a sufficient degree of compression or sufficient compression is achieved, it is provided that the pressing force is monitored, wherein a setpoint of the pressing force is predetermined and the currently applied pressing force is compared with this target value.
    From EP 2 364 791 B1 a further method or a device for pressing a line is known.
    In the case of the devices and methods known from EP 1 762 312 A1 and EP 2 364 791 B1, a possible breakage of the workpiece or tool to be pressed is only conditionally detectable.
    The present invention has for its object to provide a pressing method in which a possible occurring during the pressing process
    Breakage of the workpiece, in particular the connector or the tool is detected.
    This object of the invention is achieved by the method according to claim 1.
    According to the invention for connecting a tube for liquid or gaseous media is provided with a connector, that a first shell portion of the connector is deformed by a pressing tool so that a lying between the first shell portion and a second shell portion of the connector tube is clamped. It is further provided that during the pressing process, the pressing force applied to the pressing tool is detected and from the travel of the pressing tool and the pressing force a press force increase per unit travel is calculated. In addition, it is provided that the detected press force increase per path unit is compared with an at least required press force increase per path unit and is detected at a fall below the specified minimum required pressing force increase per path unit of the connector as faulty.
    An advantage of this method is that a occurring during the pressing process breakage of the connector can be detected and a corresponding action can be set so that this reject part is not installed in a motor vehicle. In particular, can be achieved by the method according to the invention that a detection of a workpiece fracture can be done regardless of the dimensions of the connector and also regardless of compliance with the manufacturing tolerances in the connector.
    Furthermore, it can be provided that an incremental value is set for a distance unit between one ten-thousandth of a millimeter and one-tenth of a millimeter, in particular one-thousandth of a millimeter. The advantage here is that the scaling is chosen accordingly fine to detect any occurring tool break with sufficient certainty can.
    Furthermore, it may be expedient for a machine operator to be notified of a connector recognized as faulty by an acoustic and / or optical signaling. The advantage here is that the machine operator can thus disassemble the marked as defective connector, so that this excretes from the production process.
    Alternatively, it can be provided that a recognized as defective connector is eliminated in an automated process. The advantage here is that in an automated production process, in which individual process steps are not performed directly by a machine operator, the faulty connector is automatically eliminated.
    In addition, it is possible that the press force increase per unit travel is recorded and graphed. The advantage here is that the record or the graphical representation of the Presskraftverlaufes of damaged connectors information about certain characteristics of the fracture behavior can be obtained.
    Furthermore, it can be provided that the minimum required increase in press force per unit travel is set at greater than zero Newton per unit travel. The advantage here is that with this value can be assumed with high probability that a breakage of the connector is present.
    In addition, it is possible that the connector is then detected as faulty when the increase in press force per path unit across several travel units away from the minimum required press force increase. The advantage here is that thus a so-called Ausreißwert can be excluded and thus the quality of the control can be improved. This will produce less waste.
    The term "tube" is used broadly in the context of the present invention. It is understood not only an elastomeric tube, but also a tube which has a rigid shape. It may therefore also be usual plastic pipes.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    Fig. 1 is a perspective view of a plug assembly in a quarter section;
    FIG. 2 shows a vehicle equipped with the plug assembly; FIG.
    3 is a sectional view of a first embodiment of the plug assembly in an exploded view;
    4 is a sectional view of a second embodiment of the plug assembly in an exploded view;
    5 is a sectional view of the plug assembly with Verpresswerkzeug.
    6 is a perspective view of the connector assembly with Verpresswerkzeug.
    Fig. 7 is a schematic representation of the force curve in a pressing process.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    Fig. 1 shows a perspective view of a connector assembly 1, which is shown cut in a quarter section. Furthermore, a mating connector 2 is shown schematically in Fig. 1, which is connectable to the connector assembly 1. The interaction between plug assembly 1 and a mating connector 2 is adequately described in AT 509 196 B1.
    In Fig. 1, the connector assembly 1 is shown in an assembled state. The connector assembly 1 comprises a conduit also referred to as a tube 3 or, which may be formed by a more or less flexible tube or by a substantially rigid tube member and is used to guide liquid or gaseous media.
    Furthermore, the connector assembly 1 includes a connector 4 and optionally a between connector 4 and pipe 3 introduced sealing element 5. The sealing element 5 is particularly necessary if the tube 3 consists of a hard plastic material, which is only slightly deformable.
    The connector 4 comprises a connector body 6, which may be preferably formed as a one-piece forming part, such as a deep-drawn part, in particular of a stainless steel sheet.
    2 shows a schematic representation of a vehicle 7 with a plug connector assembly 1 according to FIG. 1. As can be seen in FIG. 2, the connector assembly 1 is preferably used in a vehicle 7, in particular in a road-bound motor vehicle with an internal combustion engine. Specifically, the connector assembly 1 is used to connect various components of the fresh air supply to the internal combustion engine. For example, it may be provided that the plug assembly 1 is provided with the corresponding mating connector 2 for connecting two parts in the intake region of a turbocharger 8. Furthermore, it can also be provided that such a plug connection is used in the outgoing from the turbocharger 8 pressure side for connecting two components.
    Fig. 3 shows a section through a first embodiment of the connector assembly 1 along a central longitudinal axis 9 of the connector 4. In this embodiment, the tube 3 is formed as a rigid tube, which is not or only slightly deformable. In such a rigid tube, it may be necessary that a sealing element 5 is installed. In order to describe the individual components well, they are shown in Fig. 3 in an exploded view.
    As can be clearly seen in FIG. 3, provision may be made for the plug connector 4 to comprise, in addition to the connector body 6, a plug seal 10 which is accommodated in the connector body 6. The plug seal 10 serves to adequately seal the plug assembly 1 in the mated state with a mating connector 2.
    Furthermore, the plug connector 4 may comprise a spring element 11, by means of which the plug assembly 1 can be secured in its position relative to the mating plug connector 2 mated with the plug assembly 1. The spring element 11 is constructed so that it can be easily activated and deactivated, so that, if necessary, the plug assembly 1 and the mating connector 2 can be separated from each other or connected to each other.
    As can be seen in FIG. 3, a first jacket section 12 is formed on the connector body 6, which surrounds the central longitudinal axis 9 of the connector 4 in a sleeve shape. In other words, the first casing section 12 is a rotationally symmetrical hollow cylinder.
    The first jacket section 12 has an inner lateral surface 13 and an outer lateral surface 14. The first jacket section 12 is surrounded by a second jacket section 15, which is likewise rotationally symmetrical with respect to the central longitudinal axis 9. The first jacket section 12 is connected to the second jacket section 15 at a first end section 16 by means of a first end wall section 17.
    Like the first jacket section 12, the second jacket section 15 also has an inner jacket surface 18 and an outer jacket face 19.
    The first shell portion 12 is limited by its inner circumferential surface 13 and the outer circumferential surface 14, resulting in a wall thickness 20 of the first shell portion 12 results. The second jacket section 15 is likewise bounded by an inner jacket surface 18 and an outer jacket face 19, resulting in a wall thickness 21 of the second jacket section 15.
    The spacing of the two jacket sections 12, 15 relative to one another results in an annular space 22. The annular space 22 is bounded in particular in the radial direction by the outer jacket surface 14 of the first jacket section 12 and by the inner jacket surface 18 of the second jacket section 15. In particular, this results in an annular gap 23. This annular space gap 23 is preferably chosen so large that the tube 3 can be at least partially received therein. In the illustrated embodiment, the annulus gap 23 between 2mm and 20mm, in particular, between 3mm and 10mm, preferably between 5mm and 7mm in size.
    The two jacket portions 12, 15 are open at a second end portion 24 of the connector 4 to each other, resulting in a pipe receiving side 25 of the connector body 6 results.
    Furthermore, it can be provided that, viewed in the direction of the first end section 16 of the connector 4, a sealing receptacle 26 adjoins the first jacket section 12, which is likewise formed in the connector body 6. In such a seal holder 26, a plug seal 10 may be included. Furthermore, it can be provided that connects to the seal receptacle 26, a third jacket portion 27, which serves to receive the mating connector 2. The third wall section 27 can be adjoined by the end wall section 17, which connects the third jacket section 27 to the second jacket section 15. By virtue of this structure or relationship, as already mentioned, the first jacket section 12 is connected to the second jacket section 15 via the end wall section 17.
    Preferably, the connector body 6 is produced in a deep-drawing process, wherein all wall thicknesses of the shell portions of the connector body 6 are approximately equal.
    FIG. 4 shows a further and, if appropriate, separate embodiment of the plug assembly 1, in which case the same reference numerals or component designations are again used for the same parts as in the preceding FIG. 3. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIG.
    In the embodiment of Fig. 4, the tube 3 is formed of an elastic rubber element. A sealing element 5 for sealing between the tube 3 and the connector body 6 is therefore not absolutely necessary, since a tube 3 formed in this way can be deformed and therefore a sealing effect can be created directly between the tube 3 and the connector body 6.
    An assembly of the plug assembly 1 will be described below with reference to the illustration in Figures 3 and 4.
    In the embodiment according to FIG. 3, the sealing element 5 is inserted into the annular space 22 in a first method step. If the sealing element 5 is correctly positioned in the connector body 6, the tube 3 can now be inserted into the annular space 22 in a further method step.
    In the embodiment according to FIG. 4, the tube 3 is preferably positioned directly in the connector body 6. Positioning of the sealing element 5 can be omitted.
    In order to fix the individual components to one another, it is provided in both exemplary embodiments that, in a further method step for locating the connector assembly 1, the first jacket section 12 is plastically deformed by a pressing operation, so that a positive connection between the first jacket section 12 and tube 3 is produced , The Verpressver-drive itself will be explained in more detail in the figure description in more detail.
    5 shows a sectional view through a pressing machine 28 with clamped plug assembly 1 according to FIGS. 1 and 3, the cut along the central longitudinal axis 9 being selected here as well. In the further embodiment of the connector assembly 1 according to FIG. 4, in which an elastic tube 3 is used, the pressing process will not be explained separately because it runs analogously to the exemplary embodiment of the connector assembly 1 according to FIG.
    6 shows a perspective view of the sectional view corresponding to FIG. 5.
    As can be seen in a combination of FIGS. 5 and 6, the pressing machine 28 comprises a pressing tool 29, by means of which the first casing section 12 of the connector body 6 can be deformed and thus the press connection of the plug assembly 1 can be produced. The pressing tool 29 moves during the pressing process in the radial direction 30. In order to produce a tight connection between the connector 4 and 3 tube, a certain degree of deformation of the connector 4 and thus a certain travel 31 is necessary, which the pressing tool 29 must move.
    For pressing a rigid tube 3, the pressing tool 29 may have two partial areas. During the pressing process, a first partial region 32 deforms the first jacket section 12 in such a way that a first deformation point 33 is formed. The first deformation point 33 in this case produces a positive connection between the tube 3 and the connector body 6. A second portion 34 of the pressing tool 29 generates a second deformation point 35 through which the sealing element 5 is clamped.
    When pressing an elastic tube 3, the pressing tool 29 may have only one pressing nose, which deforms the first shell section 12 during the pressing process.
    Furthermore, a distance measuring device 36 may be provided which detects the outer surface 38 of the tube 3 facing the window opening 37 through a window opening 37 arranged in the second jacket section 15. Thereby, the deformation of the first shell portion 12 can be performed depending on the result of the detection of the surface 38 of the pipe 3 performed by the distance measuring means 36.
    Furthermore, it can be provided that the distance measuring device 36 detects a correct position of the sealing element 5 on the first jacket section 12 before inserting the tube 3 into the annular space 22.
    Furthermore, it can be provided that the outer diameter of the first casing section 12 is detected by the distance measuring device 36. This information can be used in the press machine 28 to control, for example, the travel path 31 on the basis of the measured outside diameter. Thus, when measuring a larger outer diameter and the travel 31 of the pressing tool 29 can be increased, so that the degree of compression can be kept constant due to the manufacturing tolerances slightly different connector assemblies 1.
    In order to be able to detect a damage occurring during the pressing operation of the connector 4, it is provided that the force profile, which is applied during the forming of the pressing tool 29, continuously monitored and evaluated.
    This evaluation of the force curve or the possibility of detecting a breakage of the connector 4 by means of the evaluation of the force curve will be described in detail with reference to the diagram in FIG. On the abscissa of this slide program the travel 31 of the pressing tool 29 is applied. On the ordinate of the diagram, the pressing force 39 applied by the pressing machine 28 is plotted. Furthermore, a possible force curve 40 of a good part is shown in broken lines and applied with a continuous line to a possible force curve 41 of a part which has been broken during the packaging process.
    From Fig. 7 it can be clearly seen that the two force profiles 40, 41 basically have a similar shape, wherein in the course of force 41, the location of the workpiece split 42 based on the drop in the pressing force 39 can be seen.
    In order to detect such a workpiece fracture 42, it is provided that the pressing force 39 applied to the pressing tool 29 is detected during the pressing process. The pressing force 39 can directly on the pressing tool 29 by means of a
    Load cell can be determined. Alternatively, it is also conceivable that the pressing force 39 is determined by measuring the applied force or the applied torque on the drive train. From the detected pressing force 39 and the travel 31 of the pressing tool 29, the force profile 40, 41 can be determined. In particular, a press force increase 43 per travel unit 44 is determined. This determined press force increase 43 per path unit 44 is compared with an at least required increase in pressing force 43 per path unit 44, which can be used to draw conclusions about a possible breakage of the connector 4.
    In particular, it is assumed that there is a breakage of the connector 4, if at any time during the pressing process, the detected pressing force increase 43 per path unit 44 is less than the minimum required pressing force increase 43 per path unit 44. If this is detected, it can be provided that an acoustic and / or optical signaling is displayed to the operator that a breakage of the connector 4 is present.
    Alternatively, it can be provided that a recognized as defective connector 4 is eliminated in an automatic process.
    In order to achieve a sufficiently high resolution, it can be provided that a value of 0.001 mm is set as the incremental value for path unit 44. In accordance with this fine resolution, the occurring increase in pressing force 43 can also be correspondingly low.
    In particular, it is assumed that the force curve 40 of a good part, that is, a non-broken connector 4, always has a positive slope and therefore that the required pressing force increase 43 per path unit 44 must have a positive value greater than 0 Newton.
    The slope of the force curve 40, 41 can be calculated in particular from the arctan (pressing force increase 43 / path unit 44).
    Another calculation method is based on the fact that the first derivative of the force curve 40, 41 at the point is zero at which the force curve 40, 41 in the region of the workpiece breakage 42 has a turning point.
    In addition, in the monitoring of the force curve 40, 41, a maximum force can be monitored and thus a force overflow can be displayed. The monitoring of the maximum force can be used in particular in order to be able to determine that the intended or necessary degree of deformation of the compression has been reached. Optionally, along with the maximum force and the Verpressweg can be monitored so as to determine the achievement of the degree of deformation.
    The embodiments show possible embodiments of the connector assembly 1, and the monitoring of the pressing process for producing a connector assembly 1 wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather also various combinations of the individual embodiments with each other possible and this possibility of variation is due to the doctrine of technical action by objective invention in the skill of those skilled in this technical field.
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description. All statements of value ranges in the present description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    For the sake of order, it should finally be pointed out that, for a better understanding of the construction of the plug assembly 1, these or their components have been shown partly unevenly and / or enlarged and / or reduced in size. And that the diagram for the representation of the force curve is also shown only schematically for better understanding.
    LIST OF REFERENCE NUMERALS 1 plug assembly 26 gasket receptacle plug 2 mating connector connector 3 pipe 27 third shell portion 4 connector 28 pressing machine 5 sealing element 29 pressing tool 6 connector body 30 radial direction 7 vehicle 31 travel 8 turbocharger 32 first portion 9 longitudinal axis of the connector 33 first Umformstelle ders 34 second portion 10 plug seal 35 second deformation point 11 spring element 36 distance measuring device 12 first shell portion 37 window opening 13 inside lateral surface 38 surface 14 outside lateral surface 39 pressing force 15 second shell portion 40 force course Goodteil 16 first end plug 41 force curve broken part binder 42 work piece break 17 end wall portion 43 press force increase 18 inside lateral surface 44 path unit 19 outer circumferential surface 20 wall thickness first shell portion 21 wall thickness second shell portion 22 annulus 23 annulus gap 24 second end portion Steckve rbinder 25 pipe receiving side
    权利要求:
    Claims (7)
    [1]
    claims
    1. A method for connecting a pipe (3), for liquid or gaseous media, with a connector (4), wherein a first jacket portion (12) of the connector (4) by means of a pressing tool (29) is deformed such that a between the first jacket section (12) and a second jacket section (15) of the connector (4) lying pipe (3) is clamped, characterized in that - during the pressing operation, the pressing force (39) applied to the pressing tool (29) is detected and out of the travel path (31) of the pressing tool (29) and the pressing force (39) a pressing force increase (43) per path unit (44) is calculated; - The detected pressing force increase (43) per path unit (44) with a minimum required pressing force increase (43) per path unit (44) is compared and below a specified minimum required pressing force increase (43) per path unit (44) of the connector (4) is recognized as faulty.
    [2]
    2. The method according to claim 1, characterized in that as an incremental value for a path unit (44) between a ten thousandth of a millimeter and a tenth of a millimeter, in particular one thousandth of a millimeter is set.
    [3]
    3. The method according to claim 1 or 2, characterized in that a machine operator as detected as defective connector (4) is displayed by an acoustic and / or visual signaling.
    [4]
    4. The method according to claim 1 or 2, characterized in that a detected as defective connector (4) is eliminated in an automated process.
    [5]
    5. The method according to any one of the preceding claims, characterized in that the pressing force increase (43) per path unit (44) is recorded and graphically displayed.
    [6]
    6. The method according to any one of the preceding claims, characterized in that the at least required pressing force increase (43) per path unit (44) with greater than zero Newton per path unit (44) is set.
    [7]
    7. The method according to any one of the preceding claims, characterized in that the connector (4) is detected as defective when the increase in pressing force (43) per path unit (44) over several travel units (44) away the minimum required press force increase (43).
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3291928A1|2018-03-14|
    EP3291928B1|2019-05-22|
    KR20180004222A|2018-01-10|
    US10434561B2|2019-10-08|
    ES2741873T3|2020-02-12|
    US20180126441A1|2018-05-10|
    WO2016176704A1|2016-11-10|
    AT516707B1|2016-08-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19960652C1|1999-12-16|2001-03-01|Itt Mfg Enterprises Inc|Compression pipe connection method detects radial force acting on compression sleeve by compression tool for controlling compression tool residual displacement path|
    DE10056571C1|2000-11-15|2002-07-11|Continental Ag|Process for the pressure-tight fastening of a piece of hose to a connecting part|
    EP1762312A1|2005-09-10|2007-03-14|Henn Gmbh & Co.KG|Method and apparatus for crimping of fittings in a pipe joint|
    EP2586542A1|2011-10-28|2013-05-01|Henn GmbH & Co.KG|Process for the fixing of a connector into an end portion of a conduit|WO2019104363A1|2017-11-30|2019-06-06|Henn Gmbh & Co Kg.|Method for positioning measurement points on a moving object|DE19935402C2|1999-07-30|2001-08-16|Contitech Luftfedersyst Gmbh|Method and device for the tight fastening of a piece of hose made of elastomeric material to a connecting part|
    AT509561B1|2010-03-04|2012-07-15|Henn Gmbh & Co Kg|PROCESS FOR CONNECTING A CONDUCTOR, IN PARTICULAR TO CONNECTORS, OF A FASTENING DEVICE TO A LINE FOR LIQUID AND / OR GASEOUS MEDIA|
    AT509195B1|2010-03-12|2011-07-15|Henn Gmbh & Co Kg|METHOD FOR CONNECTING A FINAL SECTION OF A LINE FOR LIQUID OR GASEOUS MEDIA TO A CONNECTOR|
    AT509196B1|2010-03-12|2011-07-15|Henn Gmbh & Co Kg|METHOD FOR CONNECTING A FINAL SECTION OF A LINE FOR LIQUID OR GASEOUS MEDIA TO A CONNECTOR|
    DE102013219159B3|2013-09-24|2014-11-20|Continental Teves Ag & Co. Ohg|Method for pressure-tight attachment of a piece of hose to a connection part|AT517085B1|2015-10-07|2016-11-15|Henn Gmbh & Co Kg|Connector for connecting lines for liquid or gaseous media|
    DE102018123468A1|2018-09-24|2020-03-26|Kautex Textron Gmbh & Co. Kg|Test method, test device and arrangement for evaluating the attachment of a line to a connection element|
    AT522335B1|2019-08-14|2020-10-15|Henn Gmbh & Co Kg|Connector assembly for use in an internal combustion engine|
    KR102138370B1|2019-12-31|2020-07-27|김양훈|The exerciser for adductor and core|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50371/2015A|AT516707B1|2015-05-06|2015-05-06|Method for connecting a pipe, for liquid or gaseous media, with a connector|ATA50371/2015A| AT516707B1|2015-05-06|2015-05-06|Method for connecting a pipe, for liquid or gaseous media, with a connector|
    PCT/AT2016/050118| WO2016176704A1|2015-05-06|2016-04-29|Method for connecting a pipe, for liquid or gaseous media, with a plug connector|
    EP16728588.1A| EP3291928B1|2015-05-06|2016-04-29|Method for connecting a pipe, for liquid or gaseous media, with a plug connector|
    KR1020177034986A| KR20180004222A|2015-05-06|2016-04-29|How to connect pipes for liquid or gas media using plug connectors|
    ES16728588T| ES2741873T3|2015-05-06|2016-04-29|Procedure to connect a tube, for liquid or gaseous media, with a plug connector|
    US15/571,539| US10434561B2|2015-05-06|2016-04-29|Method for connecting a pipe, for liquid or gaseous media, with a plug connector|
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