JP4274362B2 - Sorting device - Google Patents

Description

  The present invention relates to a sorting apparatus that sorts and feeds articles to be conveyed into a plurality of rows.

  Conventionally, for example, when an article such as a cardboard case is stacked on a pallet with a predetermined loading pattern, it supports the loading pattern while conveying the article conveyed by the upstream conveyor in the conveying direction. Thus, there is known a sorting device called a diverter, which is arranged in a plurality of rows.

In this sorting apparatus, a sorting conveyor is provided in which a sorting conveyor for feeding an article conveyed in the conveying direction from the upstream side to either a linear direction along the conveying direction or a right and left inclined direction with respect to the linear direction is switchable. In the linear direction of the sorting conveyor, there is a linear conveyor that accepts articles that are sent in the linear direction by the sorting conveyor, conveys the articles as they are, and sends them out in the linear direction. Is provided with an inclined transport conveyor that receives articles sent in the tilt direction by the sorting conveyor and transports them in the tilt direction as they are. A guide mechanism is provided that changes the direction of the article from the inclined direction to the conveying direction when it reaches the position of the sorting row (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2001-233443 (page 5-7, FIG. 3)

  However, in the conventional sorting apparatus, the articles sent in the tilting direction by the sorting conveyor are received by the tilting conveyor and transported as they are in the tilting direction to a predetermined sorting row position. There is a problem that it takes a long distance to transport to the position of the row, and there is a problem that it becomes large in the transport direction, and when the article transported in the tilt direction by the inclined transport conveyor reaches the position of the predetermined sorting row, A guide mechanism for changing the direction from the inclined direction to the conveying direction and sending it out is required, and there is a problem that the configuration becomes complicated.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a sorting apparatus that can sort and send articles within a short distance range in the transport direction, and can be downsized and simplified.

The distribution device according to claim 1 is a linear distribution state in which an article is fed in a linear direction along a conveyance direction in which the article is conveyed, an inclination direction that is inclined at a predetermined angle with respect to the linear direction, and an other side. A sorting conveyor provided so as to be able to switch to each tilt direction sorting state in which articles are respectively sent in a tilt direction inclined at a predetermined angle, and provided in a straight line direction from the sorting conveyor, the linear direction from the sorting conveyor a linear conveyor for feeding and conveying in a linear direction to accept the articles to be sent, at both sides the position of the linear transport conveyor, respectively, the start end for receiving articles from the sorting conveyor in the direction of inclination of the sorting conveyor with faces, conveyor width direction that intersects the transport direction at the side position of the terminal end side of the linear conveyor as the terminating feeding the article feed the article to the transport direction Sort adjacently to a plan view layout, including the center of the linear transport conveyor toward the terminating these starting side is arranged on the same circumference around the center of the linear conveyor in a substantially semicircular shape And curved conveyors on both sides which receive articles sent in the inclined direction from the sorting conveyor, convey them in the curved direction, and send them out.

Then, in this configuration, both sides the position of the linear transport conveyor, with the start end for receiving articles from the sorting conveyor face the inclination direction of the sorting conveyor, the linear conveyor as the terminating side for feeding the article feed the article in the conveying direction Adjacent to the conveyor width direction intersecting the conveyance direction at the side position on the terminal end side of the conveyor, and the entire plan view layout including the central linear conveyance conveyor from the starting end side to the terminal end side becomes a substantially semicircular shape. In order to provide a curvilinear curved conveyor arranged on the same circumference with the straight conveyor in the center as the center, and to receive articles to be sent from the sorting conveyor in the inclined direction to the curved conveyor and to convey and send them in the curvilinear direction Compared with the case where articles sent from the sorting conveyor in the tilt direction are transported in the tilt direction and sorted, the distance range in the transport direction is short. It is possible to sort and send out articles, and to reduce the size of the conveyance direction, and it is possible to send out articles received in the curve conveyor from a predetermined row only with the curve conveyor, without the need for a guide mechanism etc. , The configuration is simplified. Further , since the curved conveyors on both sides are provided on the same circumference at the positions on both sides of the linear conveying conveyor, the articles can be divided into three rows while being able to be distributed.

Sorting device according to claim 2, wherein, in the sorting apparatus according to claim 1 Symbol placement, sorting conveyors, linear conveyors and curved conveyor are those provided with a separate drive source for transporting articles, respectively.

  In this configuration, the article conveying speeds of the sorting conveyor, the straight conveyor, and the curve conveyor are set by the individual driving sources, respectively, and the article sorting and conveying operation can be set optimally.

Sorter of claim 3, wherein, in the sorting apparatus according to claim 1 or 2 wherein the curve conveyor, the outer peripheral side than the diameter of the inner peripheral side of the curved conveyor while being arranged side by side in the curve direction of the curved conveyor Are provided with a plurality of tapered rollers having a large diameter.

  In this configuration, since the curve conveyor is a curve roller conveyor using a plurality of taper rollers, the articles are sorted and sent out while the direction of the articles is kept constant.

The distribution device according to claim 4 is the distribution device according to any one of claims 1 to 3, wherein the length of the linear transport conveyor in a direction intersecting the linear direction is gradually shortened toward the linear direction. A linear conveyor roller group, and a second linear conveyor roller group having a length in the direction intersecting the linear direction successively increasing toward the linear direction following the first linear conveyor roller group. Is provided at the side position of the first linear conveyance roller group, and the inner peripheral side of the curve conveyor is provided at the side position of the second linear conveyance roller group.

  In this configuration, the first end of the linear conveyor is provided at the side position of the first linear transport roller group whose length in the direction intersecting the linear direction becomes shorter in the linear direction. In order to provide the inner peripheral side of the curve conveyor at the side position of the second linear conveying roller group, the length of the second linear conveying roller group that sequentially increases in length in the direction intersecting the linear direction following the roller group, Curve conveyors are arranged efficiently and compactly.

According to the distribution device according to claim 1, the article on both sides the position of the linear transport conveyor, with facing the start end to accept the article in the inclination direction of the sorting conveyor from the distribution conveyor, the terminating side for feeding the articles in the conveying direction Sort adjacent the conveyor width direction crossing the transport direction at the side position of the terminal end side of the linear conveyor to deliver the entire plan view layout, including the center of the linear conveyor toward the terminating these starting side A curvilinear curved conveyor is arranged on the same circumference centering on the linear conveyor in the center so as to be substantially semicircular, and the articles sent from the sorting conveyor in the inclined direction are received by the curved conveyor and curved. Compared with the case of transporting and distributing articles sent from the sorting conveyor in the tilt direction as they are, the transport direction is shorter. Articles can be sorted and sent out within a distance range, the size of the conveyance direction can be reduced, and the articles received by the curve conveyor can be sent out from a predetermined row only by the curve conveyor, without the need for a guide mechanism, The configuration can be simplified. Furthermore , since the curved conveyors on both sides are provided on the same circumference at the positions on both sides of the linear conveyor, the articles can be divided into three rows while being small.

According to the distribution apparatus of claim 2, set by the billing in addition to the effects of claim 1 Symbol placing the sorting device, sorting conveyors, each individual drive sources conveying speed of the article with a linear conveyor and curved conveyors In addition, it is possible to optimally set the sorting / conveying operation of the article.

According to the distribution apparatus according to claim 3, in addition to the effects of the sorting apparatus according to claim 1 or 2 wherein, for curved conveyor is curved roller conveyor with a plurality of tapered roller, the constant orientation of the articles You can sort out and keep sending.

According to the distribution device of the fourth aspect , in addition to the effects of the distribution device according to any one of the first to third aspects, the length in the direction intersecting the linear direction is gradually shortened toward the linear direction. The first end of the curved conveyor is provided at the side position of the one linear conveying roller group, and the length in the direction intersecting the linear direction following the first linear conveying roller group is gradually increased in the linear direction. Since the inner peripheral side of the curved conveyor is provided at the side position of the linear conveying roller group, the linear conveying conveyor and the curved conveyor can be arranged efficiently and compactly.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the sorting device 11 is installed between an upstream conveyor 12 that transports articles W in the transport direction F and a downstream conveyor 13, and is transported by the upstream conveyor 12. A center lane L1 that is a center (first) row in the conveyor width direction of the downstream conveyor conveyor 13, and a left side (second) row on one side in the conveyor width direction. The left lane L2 is distributed and sent to the right lane L3, which is the other side in the width direction of the conveyor and the right (third) row, and the articles W sent to the lanes L1 to L3 are conveyed by the conveyance conveyor 13 on the downstream side. To do. The downstream conveyor 13 is common to the lanes L1 to L3 or provided individually for each lane L1 to L3.

  As shown in FIG. 1 and FIG. 5, the sorting apparatus 11 has a base 21 installed on the floor or the like, and is transported in the transport direction F on the base 21 by the transport conveyor 12 on the upstream side. The incoming article W is distributed into a linear direction F1 along the conveying direction F and left and right inclined directions F2 and F3 (shown in FIGS. 2 and 3) inclined by a predetermined angle in the conveyor width direction with respect to the linear direction F1. The sorting conveyor 22, the article conveyor W sent in the linear direction F1 by the sorting conveyor 22 in the linear direction F1 and sent to the central lane L1, the left and right tilt directions F2, Left and right curve conveyors 24 and 25 are arranged to convey the articles W sent to F3 in the curve direction R and send them to the left lane L2 and the right lane L3, respectively.

  As shown in FIGS. 6 and 7, the sorting conveyor 22 has a plurality of sorting rollers 28 constituting a transport surface for transporting the article W, and each of the sorting rollers 28 is a plurality of sorting roller support members. A sorting roller row 30 is rotatably supported by the shaft 29, and a plurality of sorting roller rows 30 are arranged in parallel in the left-right direction intersecting the transport direction F. The direction of the sorting roller row 30 of the row, that is, the rotation direction of the sorting roller 28 is switched by the switching means 31 between the linear direction F1 and the left and right tilt directions F2 and F3.

  The switching means 31 is connected to both ends of the links 34 on both sides and the left and right links 34, respectively, whose intermediate portions are pivotally supported by the respective supporting points 33 with respect to the support base 32 attached on the base 21. It has a parallel link structure 36 composed of a pair of links 35 movably connected, and the ends of the distribution roller support member 29 of each distribution roller row 30 are connected to the pair of links 35 of the parallel link structure 36. Each is rotatably supported. A pair of cylinders 38 and 39 serving as a switching drive unit for switching the distribution direction are connected between the end of one link 34 and a cylinder connection base 37 mounted on the base 21. Then, a state where the rod 38a of one cylinder 38 is extended and the rod 39a of the other cylinder 39 is contracted is a normal state, and in this normal state, a plurality of sorting roller rows 30 are arranged via the parallel link structure 36. Directing in the linear direction F1, and by contracting the rod 38a of one cylinder 38 from the normal state, the plurality of sorting roller rows 30 are directed in the left inclined direction F2 via the parallel link structure 36. By extending the rod 39a of the other cylinder 39 from the normal state, the plurality of sorting roller rows 30 are configured to face the right tilt direction F3 via the parallel link structure 36.

  A rotating shaft 40 is rotatably supported on the support base 32 along the left-right direction in which the sorting roller rows 30 are arranged below the plurality of sorting roller rows 30, and is provided on the rotating shaft 40. A belt 43 is stretched over each of the plurality of pulleys 41 and the pulley 42 provided on the side of each sorting roller 28 of each sorting roller row 30. A motor roller 44 as a drive source capable of speed control is arranged below the base 21 and extends over a pulley 45 attached to a rotating portion of the motor roller 44 and a pulley 46 attached to one end of the rotating shaft 40. A belt 47 is stretched. Then, by the rotational driving of the motor roller 44, the rotational driving force is transmitted to the rotating shaft 40 via the belt 47 and also transmitted from the rotating shaft 40 to each sorting roller 28 via each belt 43. The sorting roller 28 rotates integrally. Even if the direction of each sorting roller row 30 is switched, the transmission state of the rotational driving force from the rotating shaft 40 to each sorting roller 28 by each belt 43 is maintained.

  Further, as shown in FIG. 1, the linear transport conveyor 23 has a plurality of straight rollers 50 constituting a transport surface for transporting the article W in the linear direction F1, and the plurality of straight rollers 50 are arranged in the linear direction F1. And both ends of each straight roller 50 are rotatably supported by the frames 51 on both sides. The plurality of straight rollers 50 includes a first linear transport roller group 52 that sequentially decreases in length in the conveyor width direction intersecting the linear direction F1 in the linear direction F1, and the first linear transport roller group 52. Subsequently, the second linear transport roller group 53 is configured such that the length in the direction intersecting the linear direction F1 is gradually increased toward the linear direction F1.

  As shown in FIGS. 4 and 5, a motor roller 54 as a drive source capable of speed control is disposed on a base 21 below the linear conveyor 23, and a roller portion 55 which is a rotating portion of the motor roller 54. A belt 56 is stretched over the straight roller 50 and the straight roller 50. Each straight roller 50 is stretched with a belt 57 that transmits a rotational driving force to the adjacent straight roller 50. Then, the rotational driving force of the motor roller 54 is transmitted to one straight roller 50 via the belt 56, and from this one straight roller 50 to each straight roller 50 via each belt 57. Sequentially transmitted, all the straight rollers 50 rotate integrally.

  As shown in FIGS. 2 and 3, the left and right curve conveyors 24 and 25 are provided on the same circumference at both side positions of the linear conveyor 23 in the conveyor width direction. The start side 24a, 25a for receiving the articles W of the conveyors 24, 25 faces the inclination directions F2, F3 of the sorting conveyor 22, and the end side 24b, 25b for sending the articles W is the side position of the end side 23b of the linear conveyor 23 Are arranged in a curved line from the start side 24a, 25a to the end side 24b, 25b. The start ends 24a and 25a of the curve conveyors 24 and 25 are arranged at the side positions of the first linear transport roller group 52, and the inner peripheral side of the curve conveyors 24 and 25 is the side section of the second linear transport roller group 53. The layout in plan view including the linear conveyor 23 and the curved conveyors 24, 25 is configured in a substantially semicircular shape.

  Each of the curve conveyors 24 and 25 has a plurality of taper rollers 61 whose diameter on the outer peripheral side is larger than the diameter on the inner peripheral side of each of the curve conveyors 24 and 25, and the plurality of taper rollers 61 are the curves of the curve conveyors 24 and 25. The taper rollers 61 are arranged side by side in the direction R, and both ends of each taper roller 61 are rotatably supported by the inner and outer frames 62.

  As shown in FIGS. 4 and 5, motor rollers 63 and 64 as speed-controllable driving sources are respectively arranged on the base 21 below the curve conveyors 24 and 25. A belt 67 is stretched between the roller portions 65 and 66 which are rotating portions and the one taper roller 61 of each of the curve conveyors 24 and 25. Each taper roller 61 of each of the curve conveyors 24, 25 is stretched with a belt 68 for transmitting a rotational driving force to the adjacent taper roller 61. Then, by the rotational drive of the motor rollers 63 and 64 of the respective curve conveyors 24 and 25, the rotational driving force is transmitted to one taper roller 61 of each of the curve conveyors 24 and 25 through each belt 67, and this one The taper rollers 61 are sequentially transmitted to the respective taper rollers 61 via the respective belts 68, and all the taper rollers 61 of the respective curve conveyors 24 and 25 are integrally rotated.

  Next, the operation of the present embodiment will be described.

  As shown in FIG. 1, when the article W conveyed in the conveying direction F by the upstream conveyor 12 is distributed to the central lane L1, the direction of the distribution conveyor 22 is changed to the article W by the distribution conveyor 22. Is switched to a linear direction distribution state in which is fed in a linear direction F1 along the transport direction F. That is, the rotation direction of the sorting roller 28 of the sorting conveyor 22 is directed to the linear direction F1.

  Articles W conveyed from the upstream conveyor 12 are received on the sorting conveyor 22, and are sent in the linear direction F1 by the rotation of the sorting rollers 28 of the sorting conveyor 22. An article sent from the sorting conveyor 22 in the linear direction F1 is received from the starting end side 23a of the linear conveyor 23, and is conveyed in the linear direction F1 by the linear conveyor 23, and the central lane of the conveying conveyor 13 downstream from the terminal end 23b. Send to L1.

  In addition, as shown in FIG. 2, when the articles W transported in the transport direction F by the upstream transport conveyor 12 are distributed to the left lane L 2, the direction of the distribution conveyor 22 is determined by the distribution conveyor 22. The product W is switched to the tilt direction distribution state in which the article W is sent in the tilt direction F2 tilted to the left by a predetermined angle with respect to the linear direction F1. In other words, the rotation direction of the sorting roller 28 of the sorting conveyor 22 is directed to the leftward inclination direction F2.

  Articles W transported in the transport direction F from the transport conveyor 12 on the upstream side are received on the sorting conveyor 22, and are sent in the tilt direction F2 on the left side by the rotation of the sorting rollers 28 of the sorting conveyor 22. An article W sent from the sorting conveyor 22 in the left inclined direction F2 is received from the start end side 24a of the left curve conveyor 24, and is conveyed in the curve direction R by the curve conveyor 24 and is conveyed downstream from the end side 24b. To left lane L2. At this time, since the curve conveyor 24 is a curve roller conveyor using the taper roller 61, the left side lane L2 of the downstream conveyor 13 is maintained while keeping the direction of the articles W conveyed by the upstream conveyor 12 constant. Can be sent out by sorting.

  In addition, as shown in FIG. 3, when the articles W transported in the transport direction F by the upstream transport conveyor 12 are distributed to the right lane L3, the direction of the distribution conveyor 22 is determined by the distribution conveyor 22. The product W is switched to the tilt direction distribution state in which the article W is sent in the tilt direction F3 tilted to the right by a predetermined angle with respect to the linear direction F1. That is, the rotation direction of the sorting roller 28 of the sorting conveyor 22 is directed to the rightward inclination direction F3.

  Articles W transported in the transport direction F from the transport conveyor 12 on the upstream side are received on the sorting conveyor 22, and are sent in the right tilt direction F3 by the rotation of the sorting rollers 28 of the sorting conveyor 22. An article W sent from the sorting conveyor 22 in the right inclination direction F3 is received from the start end side 25a of the right curve conveyor 25, and is conveyed in the curve direction R by the curve conveyor 25 and is conveyed downstream from the end side 25b. To the right lane L3. At this time, since the curve conveyor 25 is a curve roller conveyor using the taper roller 61, the direction of the article W conveyed by the upstream conveyor 12 is kept constant in the right lane L3 of the downstream conveyor 13. Can be sent out by sorting.

  As described above, in the sorting apparatus 11, the start side 24a, 25a that receives the article W faces the inclination direction F2, F3 of the sorting conveyor 22 and the end side 24b that sends the article W to the side position of the linear conveyor 23. , 25b are arranged side by side on the end side 23b of the straight conveyor 23, and curved curve conveyors 24, 25 are provided from the start side 24a, 25a to the end side 24b, 25b. In order to receive the articles W to be sent to F3 on the curve conveyors 24 and 25, to convey them in the curve direction R and send them out, the articles W to be sent from the sorting conveyor 22 to the inclination directions F2 and F3 are conveyed in the inclination directions F2 and F3 Compared with the case of sorting, the articles W can be reliably sorted and sent out within a short distance range in the conveying direction F, the size of the conveying direction F can be reduced, and the articles W received in the curve conveyors 24 and 25 are curved. Specified only by conveyors 24 and 25 Lanes can be delivered from the L1 to L3, is not required such as a guide mechanism, the configuration can be simplified.

  In addition, since the curved conveyors 24 and 25 on both sides are provided on the same circumference at the positions on both sides of the linear conveyor 23, the articles W can be divided into three rows while being small.

  Moreover, the curved conveyors 24 and 25 on both sides are provided on both sides of the linear conveyor 23 on the same circumference, and the length in the direction intersecting the linear direction F1 is gradually shortened toward the linear direction F1. The first end of the curve conveyors 24, 25 is provided at the side position of the first linear conveying roller group 52, and the length in the direction intersecting the linear direction F1 following the first linear conveying roller group 52 is the linear direction. In order to provide the inner peripheral side of the curved conveyors 24 and 25 at the side position of the second linear conveying roller group 53 that becomes longer gradually toward F1, the layout in plan view including the linear conveying conveyor 23 and the curved conveyors 24 and 25 is provided. Can be configured in a substantially semicircular shape, and the linear conveyor 23 and the curved conveyors 24, 25 can be arranged efficiently and compactly.

  In addition, since the conveying speed of the article W by the sorting conveyor 22, the straight conveyor 23 and the curve conveyors 24, 25 can be set by motor rollers 44, 54, 63, 64, which are drive sources capable of individual speed control, the articles The W sorting / conveying operation can be set optimally. For example, according to the mass and size of the article W, the conveying speed of the sorting conveyor 22 is made faster than that of the linear conveying conveyor 23 and the curved conveyors 24, 25, and the conveying speed of the linear conveying conveyor 23 and the curved conveyors 24, 25 is adjusted. By making it slower than the distribution conveyor 22, the articles W are quickly and reliably distributed from the distribution conveyor 22 to the linear conveyor 23 and the curved conveyors 24, 25. The setting of stabilizing the conveyance of the article W can be arbitrarily made.

  In addition, since the curve conveyors 24 and 25 are curved roller conveyors using the taper roller 61, they are distributed to the downstream conveyor 13 while keeping the direction of the articles W conveyed by the upstream conveyor 12 constant. Since it can be sent out, it is not necessary to correct the direction of the article W with a guide mechanism or the like.

  The drive source for the sorting conveyor 22, the straight conveyor 23 and the curve conveyors 24, 25 is not limited to a motor roller, and any motor may be used as long as it can control the speed.

  Further, as the curve conveyors 24 and 25, a curve belt conveyor whose conveying surface is constituted by a rotating endless belt can be used, and the same effect as the curve roller conveyor using the taper roller 61 can be obtained.

  Further, it is possible to deal with the sorting device 11 that uses only one of the curved conveyors 24 and 25 on both sides and distributes the articles W in two rows of the central lane L1 and the left and right lanes L2 and L3.

It is a top view of the linear direction distribution state of the distribution apparatus which shows one embodiment of this invention. It is a top view of the left direction distribution state of a distribution apparatus same as the above. It is a top view of the right direction distribution state of a distribution apparatus same as the above. It is a top view of the state which removed the roller of the distribution apparatus same as the above. It is a rear view seen from the side which sends out the articles | goods of a distribution apparatus same as the above. It is a top view of the distribution conveyor of a distribution apparatus same as the above. It is a front view of the distribution conveyor of a distribution apparatus same as the above.

11 Sorting device
22 Sorting conveyor
23 Straight conveyor
24, 25 Curve conveyor
24a, 25a Start side
24b, 25b Termination side
44, 54, 63, 64 Motor roller as drive source
52 First linear transport roller group
53 Second linear transport roller group
61 Tapered roller W Article

Claims (4)

A linear distribution state in which an article is fed in a linear direction along the conveyance direction for conveying the article, an inclination direction inclined at a predetermined angle to one side with respect to the linear direction, and an inclination direction inclined at a predetermined angle to the other side. A sorting conveyor provided so as to be switchable to each tilt direction sorting state to be sent;
A linear conveyor that is provided in a linear direction from the sorting conveyor, receives articles sent in the linear direction from the sorting conveyor, and conveys and sends the articles in a linear direction;
In both side position of the linear transport conveyor, respectively, along with the start end for receiving articles from the sorting conveyor faces the inclination direction of the sorting conveyor, the straight line as the terminating feeding the article feed the article to the transport direction Lined up next to each other in the conveyor width direction intersecting the conveying direction at the side position on the terminal side of the conveyor, and the layout in plan view including the linear conveyor in the center from the starting side to the terminal side is substantially semicircular. made as provided in a curved shape disposed on the same circumference around the center of the linear conveyor, the curve on both sides for feeding and conveying from the sorting conveyor in the curve direction accept articles delivered to the inclined direction A sorting apparatus comprising a conveyor. Sorting conveyors, linear conveyors, and curve conveyor according to claim 1 Symbol placing the sorting device, characterized in that it comprises a separate drive source for conveying each article. Curve conveyor according to claim 1 or 2, characterized in that it comprises a plurality of tapered roller is larger in diameter at the outer circumferential side than the diameter of the inner peripheral side of the curved conveyor while being arranged side by side in the curve direction of the curved conveyor Sorting device. The linear conveying conveyor has a first linear conveying roller group whose length in a direction intersecting the linear direction is sequentially shortened toward the linear direction, and intersects the linear direction following the first linear conveying roller group. Having a second linear transport roller group whose length in the direction becomes longer as it goes in the linear direction,
The start side of the curve conveyor is provided at a side position of the first linear conveyance roller group, and the inner peripheral side of the curve conveyor is provided at a side position of the second linear conveyance roller group. 3. The sorting apparatus according to any one of 3 .

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