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US3662874A - Parcel sorting conveyor system - Google Patents

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US3662874A
US3662874A US79928A US3662874DA US3662874A US 3662874 A US3662874 A US 3662874A US 79928 A US79928 A US 79928A US 3662874D A US3662874D A US 3662874DA US 3662874 A US3662874 A US 3662874A
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parcel
reset
actuator
track
ramp
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US79928A
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Donald C Muller
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BUTZ ENGINEERING Co
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BUTZ ENGINEERING CO
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/94—Devices for flexing or tilting travelling structures; Throw-off carriages
    • B65G47/96—Devices for tilting links or platform
    • B65G47/962—Devices for tilting links or platform tilting about an axis substantially parallel to the conveying direction

Definitions

  • Deflecting means associated with each of said parcel receiving receptacles including track elements. Said deflecting means is activatable upon command to tilt said receptacles from a normal parcel receiving position to the right or left of the line of travel in said orbit discharging by gravity parcels thereon at predetermined positions.
  • the parcel sorting conveyor system also includes reset deflector means selectively positioned therealong adapted to return said parcel receiving receptacles to said normal parcel receiving position.
  • PATENTEDMAY 15 m2 3. 662 874 sum 05 0F 18 INVENTO/Q. DON/71.0 C.
  • M04452 PATENTEDMY 16 1972 sum 05 0F 18 A I ZMWW E e Arm w w w PATENTEDMAY 16 me sum 07 0F 18 l/vvs/vro/e. Dem/01.0 C Adz/4.1.52
  • barriers when using barriers to deflect even if mechanically activatable it requires relatively short conveyor systems where the barriers are clearly visable to an operator, or if longer conveyors are utilized, additional personnel are required in the area of the barrier to assure proper actuation as to timing and placement.
  • This invention is particularly helpful in the sorting of mail, parcels and other items where a relatively large and continuous volume is encountered.
  • Each of the contiguous parcel receiving receptacle means of this invention is separate and tiltable to the right or left of the line of travel or remain horizontal upon command.
  • the conveyor system would generally be referred to as an endless conveyor means which carries parcels in the receptacles along the top of the conveyor to a desired location where the receptacles are tilted and emptied then reset to a parcel receiving position and pass around the ends of the conveyor means below the top receptacles and then back around the other end ready for loading and discharge in the upper or top position.
  • FIG. 1 is a top elevational, environmental view of several parcel sorting conveyor systems embodying the features of this invention
  • FIG. 2 is a side elevational view taken on line 2-2 of FIG. 1 illustrating the head end of a parcel sorting conveyor means
  • FIG. 3 is a cross sectional, partially in phantom view taken on line 3-3 of FIG. 2;
  • F IG. 4 is a cross sectional view, partially in phantom, taken on line 44 ofFIG. 2;
  • FIG. 5 is a cross sectional view of a part of the rail guide assembly of the deflector means and reset deflector means taken on line 5-5 of FIG. 4;
  • FIG. 6 is a side elevational view taken on line 6-6 of FIG. 4 illustrating one of the contiguous receptacles and its associated receptacle carriage unit;
  • FIG. 7 is an exploded top elevational view partly in section, taken along line 7-7 of FIG. 6 illustrating additional details of a receptacle carriage unit;
  • FIG. 8 is a view of the receptacle and receptacle carriage unit, partially in phantom, together with a portion of the guide track assembly deflector means and reset deflector means taken on line 8-8 of FIG. 6;
  • FIG. 9 is a view similar to FIG. 8 illustrating deflector means which may be employed to cause tilting of the receptacle in a left direction to the line of travel;
  • FIG. 10 is a slightly enlarged detailed view of a stabilizing guide roller of the receptacle carriage unit taken on line 10- 10 of FIG. 6;
  • FIGS. 11 through 19 illustrate various combinations of the guide track assembly, deflector means and reset deflector means which are utilized to cause tilting and righting of the receptacles;
  • FIG. 20 is a detailed side elevational view of a left deflector means interposed in the guide track assembly
  • FIG. 21 is a sectional view taken on line 21-21 of FIG. 20;
  • FIG. 21a is a sectional view taken on line 21a-21a of FIG. 20;
  • FIG. 22 is a side elevational view of a left reset deflector means
  • FIG. 23 is a view similar to FIG. 22 but partially in section showing the left reset deflector means in a different position
  • FIG. 24 is a top elevational view of the left reset deflector means taken on line 24-24 of FIG. 22;
  • FIG. 25 is a vertical sectional view taken on line 25-25 of FIG. 22;
  • FIG. 26 is en enlarged detailed sectional view taken on line 26-26 of FIG. 25;
  • FIG. 27 is a side elevational view of a right deflector means interposed in the guide track assembly
  • FIG. 28 is a detailed sectional view taken on line 28-28 of FIG. 27;
  • FIG. 28a is a sectional view taken on line 28a-28a of FIG. 27;
  • FIG. 29 is a side elevational view of a right reset deflector means
  • FIG. 30 is a view similar to FIG. 29 but partially in section, illustrating the right reset deflector means in a different position
  • FIG. 31 is a top elevational view of the right reset deflector means taken on line 31-31 of FIG. 29;
  • FIG. 32 is a vertical sectional view of a portion of the right reset deflector means taken on line 32-32 of FIG. 29;
  • FIG. 33 is an enlarged sectional view taken on line 33-33 of FIG. 32;
  • FIG. 34 is a side elevational view taken on line 34-34 of FIG. 1, illustrating the tail end of the parcel sorting conveyor means opposite the head end illustrated in FIG. 2;
  • FIG. 35 is a view taken on line 35-35 of FIG. 34 illustrating a plurality of contiguous receptacles
  • FIG. 36 is an elevational view, partly in section, showing the drive mechanism of the conveyor means taken along line 36- 36 of FIG. 34;
  • FIG. 37 is a sectional view taken along lines 37-37 of FIG. 34 illustrating further details of the conveyor means drive mechanism.
  • FIG. 1 is an environmental view of several parcel sorting conveyor means or systems generally designated 50. As can be seen there are three such parcel sorting conveyor systems 50 which are independent and for purposes of illustration, parallel one with the other.
  • the particular system 50 is adaptable for use in Post Offices and in factories or businesses wherein it is desired to convey parcels, packages, parts, etc., along a conveyor system in relatively large volume and to sort them by depositing or deflecting the parcels, packages, parts, etc., from the conveyor system 50 during transit.
  • the parcel sorting conveyor system 50 move in the direction of the arrow, that is, from left to right, when viewing FIG. 1.
  • a loading platform generally designated 52 is built around the head end generally designated 54 of the parcel sorting conveyor system 50.
  • Packages or parcels are preferably pre-sorted, loaded on the parcel sorting conveyor means 50 from the loading platform

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Sorting Of Articles (AREA)

Abstract

An endless parcel sorting conveyor system embodying a plurality of contiguous parcel receiving receptacles movable through a predetermined orbit. Deflecting means associated with each of said parcel receiving receptacles including track elements. Said deflecting means is activatable upon command to tilt said receptacles from a normal parcel receiving position to the right or left of the line of travel in said orbit discharging by gravity parcels thereon at predetermined positions. The parcel sorting conveyor system also includes reset deflector means selectively positioned therealong adapted to return said parcel receiving receptacles to said normal parcel receiving position.

Description

United States Patent [15] 3,662,874 1 May 16, 1972 Muller [54] PARCEL SORTING CONVEYOR SYSTEM [72] Inventor: Donald C. Muller, Whittier, Calif. [73] Assignee: Butz Engineering Corporation, Azusa,
Calif.
[22] Filed: Oct. 12,1970 [21 Appl. No: 79,928
[52] U.S.Cl ..198/l55,l98/38 [51] Int.Cl ..B65gl7/18 [58] FieldoiSearch ..l98/38,l55;214/llR,llAST [5 6] References Cited UNITED STATES PATENTS 3,231,066 1/1966 Harrison ..198/l55 3,167,192 l/l965 Harrison ..198/l55X Primary Examiner-Edward A. Sroka Attorney-Huebner & Worrel [5 7] ABSTRACT An endless parcel sorting conveyor system embodying a plurality of contiguous parcel receiving receptacles movable through a predetermined orbit. Deflecting means associated with each of said parcel receiving receptacles including track elements. Said deflecting means is activatable upon command to tilt said receptacles from a normal parcel receiving position to the right or left of the line of travel in said orbit discharging by gravity parcels thereon at predetermined positions. The parcel sorting conveyor system also includes reset deflector means selectively positioned therealong adapted to return said parcel receiving receptacles to said normal parcel receiving position.
14 Claims, 39 Drawing Figures PATENTEDMAY 16 I972 3, 662 874 SHEET 01 0F 18 I r' when F Don/01.0 C. Ill/4.4.52
PATENTEDMAY 15 m2 3. 662 874 sum 05 0F 18 INVENTO/Q. DON/71.0 C. M04452 PATENTEDMY 16 1972 sum 05 0F 18 A I ZMWW E e Arm w w w PATENTEDMAY 16 me sum 07 0F 18 l/vvs/vro/e. Dem/01.0 C Adz/4.1.52
w w i i 7' roe/V54 sum 13 [1F 18 PATENTEUMAY 16 m2 PATENTEDMM 16 m2 SHEET 1'4 0F 18 INVEN roe ,DoA/ALD C. MULLEE minnow 1s m:
SHEET 15 0F 18 .ZPVVEA/ 70,2
PATENTEDIAY 16 I972 sum 18 0F 18 INVENTO/Q. DOA/9L0 C. MULLER M M fiTTOE/VEJJ.
HHU "HM (WU GU 1 PARCEL SORT'ING CONVEYOR SYSTEM BACKGROUND OF THE INVENTION Heretofore in conveyor and sorting systems, certain mechanical features, by way of physical deflecting barriers have been utilized in the path of travel of the conveyor to discharge parcels or items traveling along the conveyor system. Also, other systems require the use of human labor to physically remove parcels at designated areas which is cumbersome and expensive.
Also, when using barriers to deflect even if mechanically activatable it requires relatively short conveyor systems where the barriers are clearly visable to an operator, or if longer conveyors are utilized, additional personnel are required in the area of the barrier to assure proper actuation as to timing and placement.
Some of the prior art has utilized a belt type of conveyor which can increase the problem of appropriate discharge at the place desired of the parcels spaced therealong because of bunching and lack of pre-sorting into designated groups.
SUMMARY OF THE INVENTION It is the object of this invention to provide a plurality of contiguous receptacles wherein parcels may be pre-sorted and placed thereon and selectively discharged by gravity normal to the line of travel of the parcel sorting conveyor system. This invention is particularly helpful in the sorting of mail, parcels and other items where a relatively large and continuous volume is encountered.
With this invention it is only necessary that there be a console at one end of the conveyor system whereby a person may,
by any appropriate control means, activate deflector means embodied in this invention whereby the individual receptacles may be tilted to the right or left of the line of travel and gravity will cause parcels thereon to exit from the conveyor to a subconveyor, platform or other further sorting device.
Each of the contiguous parcel receiving receptacle means of this invention is separate and tiltable to the right or left of the line of travel or remain horizontal upon command. The conveyor system would generally be referred to as an endless conveyor means which carries parcels in the receptacles along the top of the conveyor to a desired location where the receptacles are tilted and emptied then reset to a parcel receiving position and pass around the ends of the conveyor means below the top receptacles and then back around the other end ready for loading and discharge in the upper or top position.
These and other objects and advantages will become apparent from the following description and drawings.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top elevational, environmental view of several parcel sorting conveyor systems embodying the features of this invention;
FIG. 2 is a side elevational view taken on line 2-2 of FIG. 1 illustrating the head end of a parcel sorting conveyor means;
FIG. 3 is a cross sectional, partially in phantom view taken on line 3-3 of FIG. 2;
F IG. 4 is a cross sectional view, partially in phantom, taken on line 44 ofFIG. 2;
FIG. 5 is a cross sectional view of a part of the rail guide assembly of the deflector means and reset deflector means taken on line 5-5 of FIG. 4;
FIG. 6 is a side elevational view taken on line 6-6 of FIG. 4 illustrating one of the contiguous receptacles and its associated receptacle carriage unit;
FIG. 7 is an exploded top elevational view partly in section, taken along line 7-7 of FIG. 6 illustrating additional details of a receptacle carriage unit;
FIG. 8 is a view of the receptacle and receptacle carriage unit, partially in phantom, together with a portion of the guide track assembly deflector means and reset deflector means taken on line 8-8 of FIG. 6;
FIG. 9 is a view similar to FIG. 8 illustrating deflector means which may be employed to cause tilting of the receptacle in a left direction to the line of travel;
FIG. 10 is a slightly enlarged detailed view of a stabilizing guide roller of the receptacle carriage unit taken on line 10- 10 of FIG. 6;
FIGS. 11 through 19 illustrate various combinations of the guide track assembly, deflector means and reset deflector means which are utilized to cause tilting and righting of the receptacles;
FIG. 20 is a detailed side elevational view of a left deflector means interposed in the guide track assembly;
FIG. 21 is a sectional view taken on line 21-21 of FIG. 20;
FIG. 21a is a sectional view taken on line 21a-21a of FIG. 20;
FIG. 22 is a side elevational view of a left reset deflector means;
FIG. 23 is a view similar to FIG. 22 but partially in section showing the left reset deflector means in a different position;
FIG. 24 is a top elevational view of the left reset deflector means taken on line 24-24 of FIG. 22;
FIG. 25 is a vertical sectional view taken on line 25-25 of FIG. 22;
FIG. 26 is en enlarged detailed sectional view taken on line 26-26 of FIG. 25;
FIG. 27 is a side elevational view of a right deflector means interposed in the guide track assembly;
FIG. 28 is a detailed sectional view taken on line 28-28 of FIG. 27;
FIG. 28a is a sectional view taken on line 28a-28a of FIG. 27;
FIG. 29 is a side elevational view of a right reset deflector means;
FIG. 30 is a view similar to FIG. 29 but partially in section, illustrating the right reset deflector means in a different position;
FIG. 31 is a top elevational view of the right reset deflector means taken on line 31-31 of FIG. 29;
FIG. 32 is a vertical sectional view of a portion of the right reset deflector means taken on line 32-32 of FIG. 29;
FIG. 33 is an enlarged sectional view taken on line 33-33 of FIG. 32;
FIG. 34 is a side elevational view taken on line 34-34 of FIG. 1, illustrating the tail end of the parcel sorting conveyor means opposite the head end illustrated in FIG. 2;
FIG. 35 is a view taken on line 35-35 of FIG. 34 illustrating a plurality of contiguous receptacles;
FIG. 36 is an elevational view, partly in section, showing the drive mechanism of the conveyor means taken along line 36- 36 of FIG. 34; and
FIG. 37 is a sectional view taken along lines 37-37 of FIG. 34 illustrating further details of the conveyor means drive mechanism.
DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 is an environmental view of several parcel sorting conveyor means or systems generally designated 50. As can be seen there are three such parcel sorting conveyor systems 50 which are independent and for purposes of illustration, parallel one with the other. The particular system 50 is adaptable for use in Post Offices and in factories or businesses wherein it is desired to convey parcels, packages, parts, etc., along a conveyor system in relatively large volume and to sort them by depositing or deflecting the parcels, packages, parts, etc., from the conveyor system 50 during transit.
The parcel sorting conveyor system 50 move in the direction of the arrow, that is, from left to right, when viewing FIG. 1. In the preferred embodiment a loading platform generally designated 52 is built around the head end generally designated 54 of the parcel sorting conveyor system 50. Packages or parcels are preferably pre-sorted, loaded on the parcel sorting conveyor means 50 from the loading platform

Claims (14)

1. An endless conveyor means adapted to receive and move parcels therealong and selectively discharge said parcels normal to the line of travel of said conveyor means comprising: an endless drive means; motor means associated with said drive means and adapted to be energized to move said endless drive means; a plurality of contiguous parcel receptacle means each having a portion fixed to said endless drive means, and a tiltable parcel receiving portion pivotally mounted thereon normally riding in a horizontal position relative to the line of travel; guide means paralleling said endless drive means and spaced therefrom, said guide means engageable by said portion of said parcel receptacle means fixed to said endless drive means whereby said portion is stabilized during movement; reset means positioned generally parallel with said guide means; actuator means riding in said reset means and secured to said parcel receiving portion of said receptacle means; single direction deflecting means selectively positioned in said reset means adapted to vertically shift said actuator means and pivot said parcel receiving portion in said desired direction normal to the line of travel whereby a parcel thereon will be gravitationally discharged therefrom and further vertically shift said actuator means to return said parcel receiving portion to said generally horizontal position after said discharge wherein said single direction deflecting means includes gates positioned in said reset means which normally are stabilized in a horizontal position to form a continuation of said reset means but which may be moved from said horizontal position in a vertical plane relative thereto to effect a tilting of said parcel receiving portion and return to said horizontal position relative to the line of travel.
2. An endless conveyor means as defined in claim 1 wherein said single direction deflecting means adapted to vertically shift said actuator means returning said parcel receiving portion to said generally horizontal position includes a ramp communicable with said reset means and wherein said ramp is pivotable and includes a counterweight to maintain said ramp in a horizontal position; said ramp adapted to yieldably pivot when said counterweight is momentarily overcome by the weight of said actuator means to engage said reset means and cause the vertical shifting of said actuator means.
3. An endless conveyor means as defined in claim 1 wherein said gates include deflector actuator means which may be selectively energized to effect movement of said gates.
4. An endless conveyor means as defined in claim 1 wherein said actuator means includes an actuator arm pivotally connected to said portion of said parcel receptacle means fixed to said endless drive means and a roller mounted on said arm remote from said pivotal connection riding in said reset means and a coNnecting rod extending between said parcel receiving portion and said actuator arm.
5. An endless parcel sorting conveyor system adapted to receive and move parcels normal to the line of travel of said system comprising: a frame, a plurality of contiguous parcel receptacle means movably mounted on said frame, and each of said receptacle means including a parcel receiving portion pivotally mounted thereon and independently tiltable with respect to another parcel receiving portion, said parcel receiving portion normally riding in a horizontal position relative to the line of travel; an endless drive means including motor means to energize said drive means, and each of said parcel receptacle means fixed to said drive means for movement; guide means on said frame paralleling said endless drive means, and engageable by said receptacle means whereby said receptacle means is stabilized during movement, reset track means on said frame generally parallel with said guide means; actuator tie means secured to and extending from said parcel receiving portion outwardly of said pivot and having a portion riding in said reset track means whereby said parcel receiving portion remains horizontal; deflecting means selectively positioned in said reset means and adapted to interrupt said reset track means and upon engagement, channel said actuator tie means portion riding in said reset track means above or below said reset track means causing said actuator tie means to shift vertically and tyingly impart direct pivoting of said parcel receiving means normal to the line of travel whereby a parcel thereon will be gravitationally discharged, and maintaining said means in said tiltable condition, and another deflecting means adapted to return said actuator tie means portion back to said reset track means and vertically shift said actuator tie means and tyingly pivot said parcel receiving portion to said generally horizontal position.
6. A parcel sorting conveyor adapted to receive parcels and convey them to a selected position where they are discharged from said conveyor comprising: an endless drive means; motor means connected to said endless drive means and adapted to be energized to move said endless drive means; a plurality of contiguous parcel receptacle means each having a carriage assembly including guide wheels, said assembly being fixed to said endless drive means and a parcel receiving tray pivotally mounted on said carriage assembly riding generally horizontal yet adapted to be tilted to either side of the line of travel; guide track means mounted parallel to and vertically spaced from at least a portion of said endless drive means, and said guide wheels engageable with said guide track whereby the movement of said carriage assembly is stabilized; reset track means mounted parallel to said guide track means and adapted to cooperatively maintain said tray generally horizontal; actuator means riding in said reset track means and secured to said parcel receiving tray; single direction deflecting means selectively positioned in said reset track means adapted to be activated to vertically shift said actuator means and pivot said parcel receiving tray from the horizontal in said single direction normal to the line of travel whereby a parcel thereon will be gravitationally discharged therefrom, and counterbalance deflector means adapted to vertically shift said actuator means to said reset means to return said tray to said generally horizontal position.
7. A parcel sorting conveyor as defined in claim 6 wherein said actuator means is secured to said tray outward of said pivotal connection of said tray to said carriage assembly.
8. A parcel sorting conveyor as defined in claim 6 wherein said single direction deflecting means includes at least one pivotable gate formed in said reset track means adapted to be pivoted vertically upward interrupting said reset track; a left-hand track section mounted above said reset track; said gate when pivoted upward mating with said left-hand tRack causing said actuator means to be moved vertically upward tilting said tray to the left of the line of travel, and said gate being returnable to continue said reset track upon passage therethrough of said actuator means.
9. A parcel sorting conveyor as defined in claim 6 wherein said single direction deflecting means includes at least one pivotable gate formed in said reset track adapted to be pivoted vertically downward interrupting said reset track; a right-hand track section mounted below said reset track; said gate when pivoted downwardly mating with said right-hand track causing said actuator means to be moved vertically downward tilting said tray to the right of the line of travel, and said gate being returnable to continue said reset track upon passage therethrough of said actuator means.
10. A parcel sorting conveyor as defined in claim 8 wherein said counterbalance deflecting means includes a pivotally mounted yieldable ramp in said left-hand track section including a counterweight to maintain said ramp as a continuation of said left-hand track section, said ramp being yieldable when said counterweight is momentarily overcome by the weight of said actuator means thereby causing said ramp to pivot downwardly and engage said reset track causing said actuator means to vertically shift downward and return said tray to said generally horizontal position.
11. A parcel sorting conveyor as defined in claim 8 wherein said counterbalance deflecting means includes a fixed ramp extending upward between said right-hand track section and said reset track means, a pivotally mounted yieldable ramp formed in said reset track above said fixed ramp including a counterweight maintaining said pivotally mounted ramp in a horizontal position; said actuator means engaging said fixed ramp and in turn engaging said pivotally mounted ramp pivoting the same upwardly allowing said actuator means to move into said reset means and the same vertically shift upwardly to return said tray to said generally horizontal position.
12. A parcel sorting conveyor as defined in claim 6 wherein said single direction deflector means are each activated for movement by a deflector actuator which includes a plunger united with said single direction deflector means adapted to stroke outwardly or inwardly in the alternative to effect movement of said single direction deflector means.
13. A parcel sorting conveyor as defined in claim 12 wherein said plunger is united with said single direction deflector means by a cam race assembly.
14. A parcel sorting conveyor as defined in claim 6 wherein said actuator means includes an actuator arm pivotally connected to said carriage assembly and a roller mounted on said arm remote from said pivotal connection; said roller riding in said reset track means and a connecting rod extending between said tray and said actuator arm.
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AU475409B2 (en) 1976-08-19
FR2111272A5 (en) 1972-06-02
AU3449071A (en) 1973-04-19
GB1335114A (en) 1973-10-24
DE2151439A1 (en) 1972-04-20
JPS5511572B1 (en) 1980-03-26
CA943984A (en) 1974-03-19
DE2151439C2 (en) 1982-10-21

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