EP2880229A1 - Concrete dispensing boom for concrete pumps - Google Patents
Concrete dispensing boom for concrete pumpsInfo
- Publication number
- EP2880229A1 EP2880229A1 EP13739458.1A EP13739458A EP2880229A1 EP 2880229 A1 EP2880229 A1 EP 2880229A1 EP 13739458 A EP13739458 A EP 13739458A EP 2880229 A1 EP2880229 A1 EP 2880229A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- side wall
- concrete
- mast
- hollow chamber
- boom according
- 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
Links
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0427—Devices for both conveying and distributing with distribution hose on a static support, e.g. crane
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/8807—Articulated or swinging flow conduit
Definitions
- the invention relates to a Betonverteilernnast for stationary and mobile concrete pumps with several articulated arms connected to articulated joints and one of several, preferably articulated by pipe bends and rotary joints interconnected, along the individual Mastarmen out and attached to this pipe segments existing concrete conveyor line.
- Known concrete distributor masts have mast arms which are designed with a closed box or tube profile (DE 196 44 410 A1). With such a box or tube profile, a good stability and torsional stiffness can be ensured for the pole arms with a comparatively low weight.
- a box or tube profile has the disadvantage that a concrete delivery line, which is arranged in the interior of such a profile, can be made accessible only with considerable design effort to allow maintenance of the concrete delivery line. But if the concrete delivery line out of the mast arms, so elaborate pipe holder are required to hold the concrete delivery line to the mast arms. These tube holders cause additional weight, which must be taken into account when designing concrete distributor masts.
- the object of the invention is to provide a concrete distribution boom, which has a good stability and torsional rigidity with a low weight at the same time.
- a concrete distribution mast of the type mentioned in which at least one of the mast arms has a hollow chamber profile, which has at least two separated by a partition elongated hollow chambers, of which at least one closed and one is circumferentially open, and wherein the pipe segment associated with the respective mast arm is disposed on the opening side outside, partly inside or inside the open hollow chamber.
- the invention is based on the idea that a mast arm, which has a box section, ie having a rectangular cross-section, can be produced cost-effectively by assembling of belt plates and side wall or web plates with a very high stability under manufacturing aspects by the respective sheets welded become.
- An idea of the invention is also that a closed profile offers the advantage that the mast arm can be painted with little effort and rust problems are avoided due to penetrating water.
- a designed as a box mast arm can be designed with little manufacturing effort especially cranked, ie be bent to its sides simply or even several times. In a concrete placing boom, this offset is required on certain boom arms so that they can be moved past each other during operation.
- An idea of the invention is therefore to adapt the cross section of the mast arms in a concrete placing boom to the local load of a mast arm. According to the invention, it is therefore proposed to engage at least one of the side walls in a box-shaped mast arm for a concrete distributor mast. Thus, a circumferentially open cavity is created as an additional space for the concrete delivery line, so that the concrete delivery line can be performed closer to the mast arm. With these measures In particular, it was possible to reduce the lever forces with which the load of the concrete delivery line acts via the tube holders on a mast arm.
- the mast arm having the hollow section profile is designed as a box with a top flange and a bottom flange, which has a first side wall which is engaged relative to the top flange and the bottom flange and which has a second side wall spaced from the first side wall wherein the upper flange and the lower flange with the first side wall and the second side wall define the at least one closed hollow chamber and the first side wall with the upper flange and the lower flange form the circumferentially open hollow chamber.
- This circumferentially open hollow chamber can, for. B. have a trapezoidal, in particular rectangular but also a triangular cross-section.
- the second side wall may be arranged indented relative to the upper flange and the lower flange and thus define a further circumferential hollow chamber.
- the cross section of this further circumferentially open hollow chamber may be trapezoidal, in particular rectangular but also triangular.
- the upper belt and the lower belt are preferably parallel to each other.
- the first side wall and / or the second side wall is perpendicular to the upper belt and / or the lower belt. In order to optimize the torsional loading course in a mast arm, it is advantageous if the distance of the first side wall from the second side wall is varied over the mast arm.
- the top flange and / or the bottom flange in a mast arm according to the invention can also protrude differently over the side wall of a mast arm in different areas, ie the top chord and / or the bottom chord can have a belt edge extending from the first side wall and / or the second side wall the longitudinal direction of the mast arm has different distances.
- the first side wall and / or the second side wall may have a connection part which can be preassembled on the upper belt and / or the lower belt. With the preassembled connection section, it is possible to ensure that the side wall can be provided with a connection construction which can be screwed together with the further pole arm sections.
- a reduction in the torsional loading of a cranked boom can be achieved, in particular, when the concrete conveyor line in the cranked section is passed from one side of the boom arm through the first side wall and through the second side wall to the opposite side of the boom arm.
- the concrete delivery line is fixed with one or more tube holders on the first side wall or the second side wall and may be partially disposed within or within the open hollow chamber.
- a mast arm with a hollow chamber profile may at least partially made of fiber-reinforced plastic (fiber composite plastic) or made of metal.
- Fig. 1 is a side view of a truck-mounted concrete pump with a concrete distribution boom; a section of a mast arm in the concrete distribution boom with a concrete delivery line; a section of another mast arm for a concrete distributor mast, which has a bent portion and carries a concrete conveying line; one caused by the concrete conveyor line in the other mast arm torsional load; to 8 further alternatively constructed mast arms for a concrete distributor mast as a section; and Fig. 10 is a plan view of further boom arms for a concrete boom.
- the truck-mounted concrete pump 10 in Fig. 1 has a chassis 12 with a substructure 14 which carries a concrete placing boom 18.
- the concrete placing mast 18 is received on the substructure 14 on a mast block 16 and has pivots 34, 34 ', 34 "and 34"' in which the mast arms 22, 22 ', 22 "and 22"' can be moved about a horizontal axis of rotation ,
- the concrete spreader mast 18 is formed with a concrete delivery line 20 having bends 50 and tube segments 30 which are hinged together with tube couplings 32 and rotary joints 52.
- Fig. 2 shows the mast arm 22 along the line II-II in Fig. 1 as a section.
- the mast arm 22 has a hollow chamber profile which has a closed, elongated hollow chamber 24 and has a circumferentially open hollow chamber 26 which extends in the longitudinal direction.
- the hollow chamber profile of the mast arm 22 is designed as a box having a top flange 28 and a bottom flange 36 has.
- the box has a first sidewall 38 and a second sidewall 40.
- the first sidewall 38 is a dividing wall in the hollow chamber profile.
- the upper flange 28 and the lower flange 36 are parallel to each other, wherein the first side wall and / or the second side wall are perpendicular to the upper flange and / or the lower flange.
- the first side wall 38 is positioned back.
- the mast arm 22 associated pipe segment 30 in the concrete distribution mast 18 is disposed outside the hollow chamber 26 on the opening side. It should be noted, however, that in principle it is also possible to arrange the tube segments 30 of the concrete delivery line 20 partly within or also entirely within the open hollow chamber 26. On the mast arm 22, the tube segment 30 is held with a tube holder 42 which projects into the hollow chamber 26 and is fixed to the first side wall 38. With this measure, it can be achieved that the torsional moment introduced by the load of the concrete delivery line 20, which acts according to the arrow 46, via a tube holder 42 into the mast arm 22 is minimized.
- the mast arms 22 ', 22 "and 22"' in the concrete placing mast 18 shown in FIG. 1 also have a construction which corresponds to the construction of the mast arm 22.
- FIG. 3 shows a section of another mast arm 62 for a concrete distributor mast with a concrete conveying line 80.
- the mast arm 62 has a hollow chamber profile which has a closed, elongate hollow chamber 64 and contains two circumferentially open hollow chambers 66, 68 extending in the longitudinal direction ,
- the hollow chamber profile of the mast arm 62 is designed as a box having a top flange 70 and having a bottom flange 72.
- the box has a first sidewall 74 and a second sidewall 76.
- the two sidewalls 74, 76 are partitions in the hollow chamber profile.
- the upper flange 28 and the lower flange 36 are parallel to each other, with the first side wall 74 and / or the second side wall 76 perpendicular to the upper flange 70 and the lower flange 72.
- the mast arm 62 has a bent portion 78.
- the concrete feed line 80 is fixed to the mast arm 62 with the tube holders 82, 84 on the first side wall 74 and with the tube holders 86 , 88 held on the second side wall 76.
- the concrete delivery line is passed from one side of the mast arm 62 through the first side wall 74, the closed hollow chamber 64 and through the second side wall 76 to the opposite side of the mast arm 62.
- the distance A of the first side wall 74 from the second side wall 76 is constant.
- the distance between the first side wall 74 and the second side wall 76 decreases.
- B for the distance B of the first side wall 74 from the second side wall 76, B ⁇ A.
- FIG. 4 shows the torsional load T introduced into the mast arm 62 by the load of the concrete conveyor line 80 with respect to the line 90 of the common centroid of the upper and lower chords 70, 72 in the mast arm portion 92.
- the side walls 74,76 are designed for connection to the upper flange 70 and the lower flange 72 with a connecting structure.
- This connection structure is designed so that in the engaged position of the side walls 74,76 a high-quality connection with the upper and lower chord 70,72 is made possible.
- the sections of the page walls 74, 76 are then fixed to this adjacent construction by screwing or welding.
- FIG. 5 shows a further mast arm 122, which is alternatively constructed for the mast arm 22, for a concrete distributor mast in a section corresponding to the view of FIG.
- the mast arm 122 also has a hollow chamber profile which has a closed, elongated hollow chamber 124 and has a circumferentially open hollow chamber 126 which is extended in the longitudinal direction.
- the hollow chamber profile of the mast arm 122 is also designed as a box having a top flange 128 and a bottom flange 136 has.
- the chest has a first sidewall 138 and a second sidewall 140.
- the upper chord 128 and lower chord 136 are parallel to each other, with the first sidewall and / or the second sidewall 138,140 perpendicular to the upper and / or lower chords.
- the first side wall 138 is positioned rearwardly with respect to the lower flange 136 and has the distance Dui from the belt edge 137 on the side of the first side wall 138.
- the belt edge 129 of the upper belt 128 on the side of the first side wall 138 has the distance D 0 i ⁇ Dui.
- the first side wall 138 is a partition wall in the hollow chamber profile.
- the second side wall 140 is a partition wall in the hollow chamber profile.
- the second side wall 140 is positioned recessed with respect to the upper flange 128 and has the distance D 0 2 from the belt edge 131 on the side of the first side wall 138.
- the belt edge 139 of the lower belt 136 on the side of the second side wall 140 has the distance Du2 ⁇ D 02 .
- the upper flange 128 and the lower flange 136 form with the first side wall 138 a circumferentially open hollow chamber 126, which has a convex trapezoid trained cross-section 127 has.
- the upper flange 128 and the lower flange 136 define another hollow cannister 148 with a convex trapezoidal cross-section 154, which is also circumferentially open.
- the mast arm 122 associated pipe segment 130 of the concrete conveyor line in the concrete distribution boom 1 18 is disposed outside the hollow chamber 126 on the opening side and fixed with one or more pipe holders 142 on the first side wall 138. It should be noted, however, that in principle it is also possible to arrange the pipe segments 130 of the concrete delivery line partially within or also entirely within the open hollow chamber 126. It is also possible to arrange the tube segments of the concrete delivery line also on the side of the circumferentially open hollow chamber 148 of the mast arm 122, both inside and only partially inside or outside the circumferentially open hollow chamber 148.
- the first side wall 138 may be flush with the top flange 128 or the second side wall 140 with the bottom flange 136.
- the cross-section 127 of the circumferentially open hollow chamber 126 has the shape of a right-angled triangle. The same applies to the circumferentially open hollow chamber 148.
- FIGS. 6 to 8 show mast arms 22 of alternative construction of further mast arms 122 ', 122 "and 122"' for a concrete distributor mast in a section corresponding to the view of FIG. 2.
- functionally corresponding elements in FIGS. 5 to 9 are identified by the same numbers as reference symbols.
- the belt edge 137 '' of the lower belt 136 '' and the belt edge 129 '' of the upper belt here has the distance Du2 ⁇ D 0 2 of the second side wall 140 ''.
- FIG. 9 shows a further mast arm 222, which is constructed as an alternative to the mast arm 22 in FIG. 2 and has a hollow-chamber profile designed as a box with a circumferentially open hollow chamber and with a first and a second side wall 238, 240.
- the belt edge 237 of the upper girth over the longitudinal direction has the varying distance D 0 i from the first side wall 238 corresponding to the values D 0 i (1) , D 0 i (2) , D 0 i (3) .
- the distance between the belt edge 231 of the upper belt and the second side wall 240 along the longitudinal direction is constant here.
- the distance Dui of the belt edge of the lower chord on the side of the first side wall 238 or only the distance Dui of the belt edge of the lower chord gurts along the longitudinal direction of the mast arm 222 have different values.
- the upper chord and the lower chord with a first and a second side wall 338, 340 also form a hollow chamber profile designed as a box, in which case the distance Du2 or D 0 2 from the belt edge 331 of the upper chord of the second side wall 340 has different values D 0 2 (1) , Do 2 (2) , Do 2 (3) - - - over the longitudinal direction of the mast arm 322.
- the distance Dui or D 0 i of the belt edge 337 of the lower chord or upper chord on the side of the first side wall 338, the distance Dui the belt edge 331 of the lower chord on the side of the second side wall 340 or only the distance dui of the belt edge of the lower chord along the longitudinal direction of the mast arm 322 may have different values.
- hollow chamber profiles of the above-described mast arms can not only be made of metal, but at least partially made of fiber composite plastic.
- a concrete distributor mast 18 for stationary and mobile concrete pumps has a number of joints 34 connected to one another.
- At least one of the mast arms 22 has a hollow section
- the at least two a partition 40 has hollow chambers 24,26 separate from each other, of which at least one closed 24 and one 26 is circumferentially open.
- the pipe arm 30 assigned to the relevant boom arm 22 is arranged on the opening side outside, partially inside or inside the open hollow chamber 26.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012213729.7A DE102012213729A1 (en) | 2012-08-02 | 2012-08-02 | Concrete distributor boom for concrete pumps |
PCT/EP2013/065468 WO2014019885A1 (en) | 2012-08-02 | 2013-07-23 | Concrete dispensing boom for concrete pumps |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2880229A1 true EP2880229A1 (en) | 2015-06-10 |
EP2880229B1 EP2880229B1 (en) | 2016-09-07 |
Family
ID=48808378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13739458.1A Not-in-force EP2880229B1 (en) | 2012-08-02 | 2013-07-23 | Concrete dispensing boom for concrete pumps |
Country Status (8)
Country | Link |
---|---|
US (1) | US9512628B2 (en) |
EP (1) | EP2880229B1 (en) |
JP (1) | JP6031605B2 (en) |
KR (1) | KR20150033720A (en) |
CN (1) | CN104641058B (en) |
BR (1) | BR112015001930A2 (en) |
DE (1) | DE102012213729A1 (en) |
WO (1) | WO2014019885A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014200396A1 (en) * | 2014-01-13 | 2015-07-30 | Putzmeister Engineering Gmbh | Truck-mounted concrete pump and protection circuit for it |
DE102014215947A1 (en) | 2014-08-12 | 2016-03-03 | Putzmeister Engineering Gmbh | hollow body |
DE102018204079A1 (en) * | 2018-03-16 | 2019-09-19 | Putzmeister Engineering Gmbh | Truck-mounted concrete pump and method for the stability-relevant control of a truck-mounted concrete pump |
CN114517580B (en) * | 2020-11-20 | 2024-03-08 | 三一汽车制造有限公司 | Arm support device and working vehicle |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT946523B (en) * | 1972-01-13 | 1973-05-21 | Worthington Soc Italiana Pompe | TRUCK PUMPING COMPLEX FOR THE CASTING OF CONCRETE IN PARTICULAR PARTS IN THE CONSTRUCTION OF GALLE RIE AND PROCEDURE FOR CASTING THE CAP OF PARTICOLARMEN T TUNNELS THAT CAN BE USED THROUGH THIS COMPLEX |
US3942554A (en) * | 1974-04-19 | 1976-03-09 | Werner Corporation | Extendable crane with folding conduit |
DE3013450A1 (en) * | 1980-04-05 | 1981-10-08 | Stetter Gmbh, 8940 Memmingen | DISTRIBUTION POLE OF A CONCRETE PUMP |
US4828033A (en) * | 1981-06-30 | 1989-05-09 | Dowell Schlumberger Incorporated | Apparatus and method for treatment of wells |
US4519768A (en) * | 1982-10-29 | 1985-05-28 | Takenaka Komuten Co., Ltd. | Apparatus for horizontally casting concrete |
DE19641789C1 (en) * | 1996-10-10 | 1998-07-16 | Korthaus Ernst | Concrete distribution system for ready-mixed concrete |
DE19644410A1 (en) | 1996-10-25 | 1998-04-30 | Putzmeister Ag | Concrete placing boom for concrete pumps |
JP3678592B2 (en) * | 1998-11-12 | 2005-08-03 | 極東開発工業株式会社 | Telescopic cylinder mounting structure in boom device |
US6786233B1 (en) * | 2001-02-23 | 2004-09-07 | Schwing America, Inc. | Boom utilizing composite material construction |
DE102006040092A1 (en) * | 2006-08-28 | 2008-03-06 | Putzmeister Ag | Arrangement for conveying concrete with height-adjustable concrete boom |
ITUD20070169A1 (en) * | 2007-09-19 | 2009-03-20 | Cifa Spa | PROCEDURE FOR THE CONSTRUCTION OF A CONCRETE DISTRIBUTION ARM, AND ARM OBTAINED SO |
CN201321722Y (en) * | 2008-12-23 | 2009-10-07 | 赵光辉 | Novel concrete material distributing rod |
-
2012
- 2012-08-02 DE DE102012213729.7A patent/DE102012213729A1/en not_active Withdrawn
-
2013
- 2013-07-23 JP JP2015524715A patent/JP6031605B2/en not_active Expired - Fee Related
- 2013-07-23 KR KR1020157003234A patent/KR20150033720A/en not_active Application Discontinuation
- 2013-07-23 CN CN201380048186.1A patent/CN104641058B/en not_active Expired - Fee Related
- 2013-07-23 BR BR112015001930A patent/BR112015001930A2/en not_active IP Right Cessation
- 2013-07-23 EP EP13739458.1A patent/EP2880229B1/en not_active Not-in-force
- 2013-07-23 WO PCT/EP2013/065468 patent/WO2014019885A1/en active Application Filing
-
2015
- 2015-01-30 US US14/610,654 patent/US9512628B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2014019885A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104641058A (en) | 2015-05-20 |
JP6031605B2 (en) | 2016-11-24 |
JP2015527510A (en) | 2015-09-17 |
US9512628B2 (en) | 2016-12-06 |
CN104641058B (en) | 2016-09-28 |
DE102012213729A1 (en) | 2014-02-06 |
BR112015001930A2 (en) | 2017-07-04 |
US20150136266A1 (en) | 2015-05-21 |
KR20150033720A (en) | 2015-04-01 |
WO2014019885A1 (en) | 2014-02-06 |
EP2880229B1 (en) | 2016-09-07 |
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