• 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 present invention relates to a tire construction drum and a method of constructing a tire casing. The tire construction drum has a central section comprised of a plurality of segments that are movable in the radial and axial directions. The tire construction drum sleeve over the center section has been eliminated and instead has two seals located at the outer ends or shoulders of the center section of the tire construction drum. The construction drum still comprises shoulder sections that are axially movable. The shoulder sections include radially expandable bead locks. The method uses the steps of applying one or more layers of carcass, locking the bead locks and moving the center section radially outward while moving the bead locks axially inward.
    公开号:BR102015031727B1
    申请号:R102015031727-1
    申请日:2015-12-17
    公开日:2020-06-30
    发明作者:Iván Marcos Roa Guzmán
    申请人:The Goodyear Tire & Rubber Company；
    IPC主号:
    专利说明:

    [0001] [001] The invention relates to a tire construction drum, more particularly to a tire construction drum without a central sleeve. BACKGROUND OF THE INVENTION
    [0002] [002] Tire manufacturing typically involves a tire construction drum in which numerous tire components are applied to the drum in sequence, forming a cylindrical tire casing. This stage of the tire construction process is generally referred to as the “first stage” of the tire construction process. The tire casing is then typically removed from the tire construction drum and sent to an expandable tire shaping drum, from the second stage, where the casing is expanded to a toroidal shape for receiving the remaining tire components, such as the belt package and rubber tread. The unvulcanized tire casing in full toroidal shape or raw tire is then removed from the second stage drum and subsequently molded and vulcanized into a finished tire.
    [0003] [003] The prior art process thus requires two tire construction drums and the transfer of the carcass from one drum to the other. In addition, a problem often arises with the location and precise anchoring of the tire beads on the uncured tire casing, especially when transporting the tire beads from the first stage drum to the second stage drum. Variations in bead positioning can result in distortion of the canvas in the tire.
    [0004] [004] Tire manufacturers have recently started tending towards the use of a single tire construction drum, for both the first and second stage of tire construction. This requires the tire construction drum to be capable of axial expansion and contraction, as well as radial expansion / contraction. In addition, it is important to maintain a positive bead lock throughout the tire construction process, including tire modeling, so that the length of the canvas cord is maintained, resulting in good tire uniformity.
    [0005] [005] Tire manufacturers typically use a flexible cylindrical rubberized central sleeve as the outermost element in the tire's construction drums. The central sleeve acts as the application surface and the attachment point for the innermost component of the tire (inner lining). The section where the central sleeve wraps around the “shoulder” of the radially expandable segments also serves as a pneumatic seal against the bead area of the raw tire, enabling inflation (modeling) of the raw tire in the construction process of the full-stage tire . The center sleeve also typically has a series of holes to produce a vacuum to attach the inner lining to the drum and air to shape the raw tire.
    [0006] [006] It is desired to remove the central sleeve because it is usually of specific width. Removing the central sleeve allows for a greater increase in manufacturing flexibility, as many different tire codes can be run on the same drum without the need to change parts. This results in longer machine uptime and a substantial reduction in drum inventory requirements. With the sleeveless modification, a special set of drum segments is necessary, so that the leading edge of the first tire component can be captured by the drum. However, due to the removal of the center sleeve, it is difficult to use a vacuum to efficiently capture and secure the leading edge of a tire component. This is due to the lack of resilience around the vacuum holes. Thus, an improved tire construction drum is desired that no longer requires a central sleeve and has sufficient vacuum to adhere the first tire component to the drum without corrugating the tire component. DEFINITIONS
    [0007] [007] For ease of understanding of this revelation, the following items are defined:
    [0008] [008] “Apex” means an elastomeric filler located radially above the bead and placed between the canvas and the canvas turn.
    [0009] [009] "Axial" and "axially" means the lines or directions that are parallel or aligned with the longitudinal geometric axis of rotation of the tire construction drum.
    [0010] [010] “Bead” means that part of the tire comprising an annular tensile member generally referred to as the “bead core” surrounded by canvas strings and shaped, with or without other reinforcement elements, such as bead covers, wire reinforcements , tips, nail protectors and anti-friction screens, to fit the design rim.
    [0011] [011] “Belt structure” or “reinforcement belts” means at least two annular layers or parallel cord strips, woven or non-woven, underlying the tread, not attached to the bead and having both left and right cord angles right in the range of 17 ° to 27 ° with respect to the equatorial plane of the tire.
    [0012] [012] “Carcass” means a non-vulcanized laminate of tire tarp material and other tire components cut to the appropriate length to join, or already joined, in a cylindrical or toroidal shape. Additional components can be added to the carcass before being cured to create the molded tire.
    [0013] [013] “Outside” means the tire casing and associated tire components excluding the tread.
    [0014] [014] “Anti-friction mesh” means narrow strips of material placed around the outside of the bead to protect the lining of the rim cord, distribute the flex above the rim and seal the tire.
    [0015] [015] "On the circumference" means lines or directions extended along the perimeter of the annular tread surface perpendicular to the axial direction.
    [0016] [016] “Cordão” means one of the reinforcement filaments of which the plies on the tire are comprised.
    [0017] [017] "Equatorial plane (EP)" means the plane perpendicular to the geometric axis of rotation of the tire and passing through the center of its tread.
    [0018] [018] “Inner lining” means the layer or layers of elastomer or other material that forms the inner surface of a tubeless tire and that contains the inflation fluid inside the tire.
    [0019] [019] “Reinforcement” means an elastomeric member used as a reinforcement member generally located in the region of the tire tread.
    [0020] [020] “Canvas” means a continuous layer of parallel rubber-lined strands.
    [0021] [021] "Radial" and "radially" mean directions radially near or away from the geometric axis of rotation of the tire construction drum.
    [0022] [022] “Radial tarpaulin tire” means a tire with a belt or restricted in circumference in which at least one tarpaulin layer has the tarpaulin strands extending from bead to bead at cord angles between 65 ° and 90 ° with respect to equatorial plane of the tire.
    [0023] [023] "Shoulder" means the upper portion of the side just below the edge of the tread.
    [0024] [024] “Costado” means that portion of a tire between the tread and the bead.
    [0025] [025] “Tread” means a rubber component that when attached to a tire casing includes that portion of the tire that comes into contact with the road when the tire is normally inflated and under normal load.
    [0026] [026] “Tread width” means the arc length of the tread surface in the axial direction, that is, in a plane parallel to the geometric axis of rotation of the tire. BRIEF DESCRIPTION OF THE DRAWINGS
    [0027] [027] The invention will be described by way of example and with reference to accompanying drawings in which:
    [0028] [028] Figure 1 is a front cross-sectional view of a tire construction drum of the present invention shown having two shoulder sleeves mounted on the bulging portion of the drum.
    [0029] [029] Figure 2 is a cross-sectional view close to the tire construction drum of figure 1 showing the drum in a radially expanded position.
    [0030] [030] Figure 3 is a cross-sectional view close to a tire construction drum in the expanded, bulging condition shown with a prior art central sleeve.
    [0031] [031] Figure 4 is a cross-sectional view close to the tire construction drum in expanded condition with high bulging with the shoulder sleeves of the present invention.
    [0032] [032] Figure 5 is a front view of the central section of the tire construction drum in an axially contracted position.
    [0033] [033] Figure 6 is a front view of the central section of the tire construction drum in an axially expanded position.
    [0034] [034] Figure 7 is a perspective view of the central section of the tire construction drum shown in an axially contracted position.
    [0035] [035] Figure 8 is a perspective view of the central section of the tire construction drum shown in the axially contracted and radially expanded position.
    [0036] [036] Figure 9 is a perspective view of the center section in the axially expanded position of the tire construction drum with the shoulder seals removed.
    [0037] [037] Figure 10 is a cross-sectional view of half the central section of the tire construction drum.
    [0038] [038] Figure 11 is a top view of a single segment of the central section.
    [0039] [039] Figure 12 is a bottom view of the single segment of the central section of figure 11.
    [0040] [040] Figure 13 is a side view of the single segment of the central section of figure 11.
    [0041] [041] Figure 14 is a perspective view of a segment of the tie bar.
    [0042] [042] Figure 15 is a central section having a second embodiment of a joint bar assembly.
    [0043] [043] Figure 16 is a perspective view of an assembly of the tie bar of the present invention.
    [0044] [044] Figure 17 is a cross-sectional view of the coupling bar assembly of the present invention.
    [0045] [045] Figure 18 is an end view of the connection bar assembly of figure 17.
    [0046] [046] Figure 19 illustrates the joint bar assembly in an axially retracted position.
    [0047] [047] Figure 20a shows the right frame of the tie bar assembly and figure 20b shows the left frame of the tie bar assembly. DETAILED DESCRIPTION OF THE INVENTION
    [0048] [048] With reference to figures 1 to 2, an exemplary tire construction drum 5 of the present invention is illustrated. As shown more particularly in figure 1, the tire construction drum 5 has a left side 7 and a right side 9 joined by a central section 20. The central section is further divided into a right side 22b and a left side 22a, which they are both mobile in the axial and radial directions, as described in more detail below. Adjacent to the central section 20 are a first and a second bead locking mechanism 25a, b, which are also radially movable as shown in figure 2. Adjacent to the bead locking mechanisms are the first and second sections of the shoulder 29. Both the bead locking mechanisms and shoulder sections are movable in an axial direction. Thus, both the left side and the right side of the drum are axially movable. These components are described in more detail below. CENTRAL SECTION
    [0049] [049] The central section 20 of the tire construction drum as shown in figures 2 to 10 still comprises a plurality of central segments 22a, b located around the outer circumference of the drum. Each of the central segments can be further divided into a left side 22a and a right side 22b, as shown in figures 4 to 12 (although not required). As shown in figure 11, the central segment on the left side 22a has one or more finger-like projections 24a, with recesses 26a. The right side is the opposite mirror. As shown in figure 10, the left central segment 22a has three finger-like projections 24a which are received by sliding into three elongated slits 26b in an interdigital or interconnected manner. Likewise, the right central segment 22b has three finger-like projections 24b which are received by sliding into three opposite elongated slits 26a. The central segments 22a, b thus cooperate to expand or contract axially, as the fingers slide into the recesses.
    [0050] [050] The central section 20 can also expand radially as shown in figure 8. The central section 20 can expand radially in the range of approximately 20 to approximately 50 mm. When each central segment 22a, b expands radially, the gap between the central segments increases. Supplied within each half of the central segment 22a, b is a radially oriented piston chamber 28. Received in each chamber 28 is an elbow joint 30 connected to a common actuator (not shown), such as a piston 33. A control system (not shown) activates the pistons 33, making the joint 30 slide from the retracted position (not shown) to the driven position shown in figure 3. When the joints 30 are actuated, the joints push the central segments radially outward to inside the high bulging position as shown in figure 3. SHOULDER SEALS
    [0051] [051] Figure 3 illustrates a typical tire construction drum having a central section that is completely covered by a central sleeve in a cylindrical shape A. The central sleeve A is typically comprised of thick rubber. The tire construction drum of the present invention does not have a central glove, a glove or any type of rubber component that extends from one end of the center section to the other end, nor a glove that is located in the center of the center section the drum. The tire construction drum of the present invention eliminated the central sleeve and includes a first and a second shoulder seal 60a, b. The purpose of shoulder seals is to maintain the pneumatic seal between the bead of the raw tire and the tire construction drum, enabling inflation and shaping of the raw tire in the full stage tire construction process. The first and second shoulder seals 60a, b are located at the axially external ends of the segments 22a, b that form the central section. Each central seal preferably has a general annular shape, having a first end 62a, b which is secured to seal clips 70 located adjacent to the segments of the central section. Preferably, the first ends 62a, b of the seal have a projection of the outer bead 63 for reception corresponding to the internal protrusion of the seal clip. Each of the shoulder seals further comprises a second end 64a, b which is a free or unrestricted end. Thus, the shoulder seals are not subject to axial stress which substantially reduced the life of the central sleeve. The free end 64a, b rests on the outer surface 23a, b (figure 11) of the central segments 22a, b and will slide relative to the central segments when the drum is radially expanded. The outer surface 23a, b has an outer diameter smaller than the center of the central section, forming a radial step, so that when the shoulder seals are mounted, the shoulder seals form a level surface with the central section of the drum.
    [0052] [052] Each shoulder seal can be cast into a mold (not shown) in the desired shape or as shown in figure 4. Preferably, each seal is cast or formed in an "L" shape as shown. The seal can be made of rubber, polyurethane or other flexible material.
    [0053] [053] The segments have been redesigned, so that the inner lining is applied directly to the external radial surface of the segments, instead of the central sleeve. At least one finger of a segment (see figures 5 to 7) is equipped with one or more vacuum holes 99 to enable the front edge of the inner lining to be fixed on the drum using vacuum. Preferably, a finger from each of the left and right segments is equipped with vacuum holes. Figure 14 illustrates a special segment 103 with a tie bar plate 101. The special segment illustrates a finger 105 having a plurality of vacuum holes.
    [0054] [054] Figures 15 to 18 illustrate a second embodiment of a segment of the tie bar 300 with vacuum. In this embodiment, segment 103 is replaced by the link bar segment 300 on the tire construction drum 5, as shown in figure 15. Unlike segment 103, the link bar 300 has a complete axial width of the central section 20. Thus, the tie bar extends from an axial end 321 to the opposite axial end 323 of the central section 20. Because the central section contracts axially as shown in figure 19, the tie bar 300 also contracts axially. UNION BAR ASSEMBLY
    [0055] [055] The tie bar 300 has a frame 302 having a left side 304 and a right side 306 that are slidable with respect to each other, so that the tie bar 300 can expand or contract axially. As shown in figure 20a, the right side or frame of the first side 306 includes a rigid joint plate 310 and a vacuum bar 320 having a plurality of vacuum holes 322. The vacuum bar 320 is radially separated from the rigid union plate forming a radial gap, so that a second vacuum bar 330 connected to the left side or frame of the second side 304 can be received therein. Figure 20b illustrates the frame of the second side 304, which also includes a support plate 318 which is received under the rigid joint plate 310. Received in each vacuum hole is a resilient suction cup 324. The resilient suction cups 324 they are preferably formed of elastomer, rubber, silicone or other resilient material. It is further preferred that the vacuum suction cups protrude from the vacuum holes 322 of the vacuum bars 320, 330. The vacuum suction cups provide a larger surface area and better seal between the inner liner material and the vacuum cups. suction due to resilience and greater surface area. Preferably, there are 6 to 14 vacuum cups per vacuum bar 320, 330.
    [0056] [056] The rigid joint plate 310 provides a surface having sufficient radial depth D to support the leading edge of a tire component on it, as well as providing a rigid surface support to allow the tire component to be joined. The rigid joint plate 310 has a first end which is pivotally mounted on the right side 306 of the joint bar 300 at point 316. The rigid joint plate 310 has a free end 314 which is slid over the outer surface 318 on the left side 304 when the tie bar 300 contracts axially, as shown in figure 19.
    [0057] [057] Figure 17 shows a cutout view of the tie bar 300. The tie plate 310 is rotatable around pivot point 316 in the direction shown by arrow 317. A compression spring 319 predisposes the spring in the closed position as shown . In the event of interference, the joint plate 310 will rotate around pivot point 316, so that the joint plate moves out of the way. The tie bar 300 further includes a second compression spring 321 which slides on sleeve 323. The second compression spring is oriented in the axial direction and predisposes the tie bar 300 in the axially open position as shown. TALON LOCK MECHANISM
    [0058] [058] Adjacent to central section 20 are the first and second ring bead locking mechanisms 25. The bead locking mechanisms are radially expandable to a bead clamp position, in order to secure the bead during the construction process of the tire. Figure 2 illustrates the locking mechanisms of bead 25 in the stowed position. SHOULDER SECTION AND SHOULDER CLIP
    [0059] [059] The right and left shoulder sections 29 of the tire construction drum 5 are defined as the drum components located axially outside the centerline of the center section, including the sealing clamps and bead locking mechanisms. The left and right shoulder sections of the tire construction drum are axially slidable in bearing sleeves. The shoulder sections 29 are driven by drive pins 125 mounted on nuts 130, which extend along the drive screw 121. When the central screw is rotated, nuts 130 move axially inward / outward, causing the pins motives 125 and each shoulder section move axially in / out in corresponding mode. In addition, the driving pins are also in mechanical cooperation with the divided central segments, causing the divided central segments 22a, b to extend or contract axially.
    [0060] [060] When the center section 20 of the tire construction drum 5 moves to the high bulging position as shown in figure 2, the lug lock mechanisms 25 and the seal clamp mechanism 70 are further driven axially inward , so that the sealing clamp is received in the recess 74. The axial actuation of the bead locking mechanisms and sealing clamps preferably takes place simultaneously with the movement of the central segments to the high bulging position. TRANSMISSION SHAFT
    [0061] [061] A central drive shaft 120 is provided for the rotational movement of the tire construction drum 5 around its longitudinal geometric axis. The central axis 120 is connected to a driving device (not shown). Supplied within the central drive shaft 120 is a central screw 121. The central screw 121 is supported at each end by bearings 123. The fillets on one side of the central screw 121 are on the left and on the opposite side are on the right. On the left side is an inner nut 125 connected to one end of the threaded screw 121 and similarly on the opposite right is an outer ball nut 125 connected to the central screw 121. TURNED BALLOONS
    [0062] [062] An upper balloon 150 extends axially out of the lug lock mechanism 25 to the respective ends of the tire construction drum. The upper balloon 150 extends over a lower balloon 152, which is mounted in the shoulder area of the drum and extends axially outward to the respective ends of the tire construction drum. The upper and lower balloons function as overturned balloons that are used to inflate and, with this, make the turned ends of the canvas wrap around the apex and cores of the bead.
    [0063] [063] Although certain representative modalities and details have been shown for the purpose of illustrating the invention, it will be evident to those skilled in this technique that various changes and modifications can be made to it without departing from the spirit or scope of the invention.
    权利要求:
    Claims (9)
    [0001]
    Tire construction drum, comprising: a rotating drum (5) having a central section (20) and a first and a second shoulder section (29), said central section (20) being radially expandable, wherein said section central (20) has a first shoulder (22a), a second shoulder (22b) and a central portion extending between the first and the second shoulders, where the central section (20) still comprises a first half and a second half, wherein the first half and the second half are axially movable with respect to each other; wherein the central section (20) comprises a rigid joint bar assembly (300) comprising the assembly having a rotating joint plate (310) and a plurality of holes (322) in fluid communication with a vacuum source, CHARACTERIZED by fact that a resilient suction cup (324) is positioned in a respective hole (322), in which the suction cup (324) has a hole for fluid vacuum communication and in which the resilient suction cup (324) protrudes from the hole (322).
    [0002]
    Tire construction drum according to claim 1, CHARACTERIZED by the fact that the joining plate (310) is rotatable around a direction transverse to the axial direction.
    [0003]
    Tire construction drum according to claim 1 or 2, CHARACTERIZED by the fact that the joint plate is pivotable around one end.
    [0004]
    Tire construction drum according to any one of claims 1 to 3, CHARACTERIZED by the fact that the central portion (20) has no central sleeve.
    [0005]
    Tire construction drum according to any one of claims 1 to 4, CHARACTERIZED by the fact that said central section (20) still comprises a plurality of first half-segments and a plurality of second half-segments, in which the the first half-segments are axially slidable in relation to the second half-segments.
    [0006]
    Tire construction drum according to any one of claims 1 to 5, CHARACTERIZED by the fact that the central section (20) still comprises a first and a second shoulder seals positioned on the first and second shoulders, respectively.
    [0007]
    Tire construction drum according to any one of claims 1 to 6, CHARACTERIZED by the fact that the rigid joint bar assembly (300) is axially closed.
    [0008]
    Tire construction drum according to any one of claims 1 to 7, CHARACTERIZED by the fact that a spring predisposes the rigid joint bar assembly (300) to an axially open position.
    [0009]
    Tire construction drum according to any one of claims 1 to 8, CHARACTERIZED by the fact that a compression spring predisposes the rotating joint plate (310) to a closed position.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3355346A|1964-01-17|1967-11-28|Uniroyal Inc|Automatic tire building apparatus|
    US4148680A|1978-03-09|1979-04-10|The Goodyear Tire & Rubber Company|Tire building machine|
    US4149927A|1978-03-24|1979-04-17|The General Tire & Rubber Company|Tire building apparatus with improved drum shoulder|
    US5268057A|1989-12-14|1993-12-07|Sumitomo Rubber Industries Ltd.|Tire building apparatus|
    JP3388023B2|1994-04-25|2003-03-17|東洋ゴム工業株式会社|Apparatus for attaching steel ply to automobile tires|
    IT1303143B1|1998-07-10|2000-10-30|Bridgestone Firestone Tech|UNISTAGE DRUM FOR TIRE FORMING|
    DE102004008273B4|2004-02-20|2012-09-20|Continental Reifen Deutschland Gmbh|Device for manufacturing tire components and method for their operation|
    DE102004036516A1|2004-07-28|2006-03-23|Continental Aktiengesellschaft|Method and device for constructing a tire carcass of a green tire|
    FR2879957B1|2004-12-24|2007-03-02|Michelin Soc Tech|COMBINATION DRUM OF FRAME OF REINFORCEMENT|
    ITTO20060118A1|2006-02-21|2007-08-22|Bridgestone Corp|TIRE DRYING DRUM|
    US20090151873A1|2007-12-18|2009-06-18|Pinto Ricardo De Mello|Sleeveless tire building drum|
    US7832541B2|2008-01-08|2010-11-16|Gm Global Technology Operations, Inc.|Torque based park lock assembly|
    CN201309263Y|2008-12-24|2009-09-16|昊华南方橡胶有限责任公司|Tyre body transferring and clamping device of tyre forming machine|
    US20140048213A1|2012-08-15|2014-02-20|The Goodyear Tire & Rubber Company|Sleeveless tire building drum with interchangeable width elements|
    ITMI20122148A1|2012-12-17|2014-06-18|Pirelli|PROCESS AND APPARATUS FOR REALIZING TIRES|US10611112B2|2016-07-22|2020-04-07|The Goodyear Tire & Rubber Company|Center mechanism for tire building drum|
    JP6332368B2|2016-09-06|2018-05-30|横浜ゴム株式会社|Pneumatic tire molding method and apparatus|
    KR101900665B1|2016-11-14|2018-09-27|한국타이어 주식회사|Carcass building drum for greentire manufacture|
    WO2018196210A1|2017-04-26|2018-11-01|青岛森麒麟轮胎股份有限公司|Forming drum and side ring pair thereof|
    US20190070814A1|2017-09-01|2019-03-07|The Goodyear Tire & Rubber Company|Method of building tires|
    US10960627B2|2017-09-01|2021-03-30|The Goodyear Tire & Rubber Company|Method of making a tire|
    EP3450153B1|2017-09-01|2020-07-29|The Goodyear Tire & Rubber Company|Tire building drum and method of building a tire|
    CN107584786A|2017-10-30|2018-01-16|萨驰华辰机械有限公司|Assembly drum and tyre building machine|
    WO2019085885A1|2017-10-30|2019-05-09|萨驰华辰机械有限公司|Building drum, tire building machine and tire building method thereof|
    CN108215261B|2017-12-29|2019-10-15|萨驰华辰机械有限公司|The tire moulding method of tyre building machine|
    NL2021843B1|2018-10-19|2020-05-13|Vmi Holland Bv|Tire building drum and method for tire building|
    US20210347136A1|2020-04-22|2021-11-11|William A. Jones|Shoulder Assembly for Tire Building Machine|
    法律状态:
    2016-11-16| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-12-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-04-22| B09A| Decision: intention to grant|
    2020-06-30| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/12/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201462095830P| true| 2014-12-23|2014-12-23|
    US62/095.830|2014-12-23|
    US14/924.111|2015-10-27|
    US14/924,111|US20160176138A1|2014-12-23|2015-10-27|Sleeveless tire building drum|
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