JPH06127650A - Conveyance sorting device - Google Patents

Abstract

PURPOSE:To improve the durability of a movable rail mechanism equipped at a crossing part of guide rails. CONSTITUTION:A passive element 100 which is rotated by a shoe operating element 63 moving along a guide rail 83 or 84, is equipped at the upstream side of the crossing part of the guide rails 83, 84. The first pulley 101 which rotates in one body together with the passive element 100 is provided. A movable rail 112, which can be connected continually to the end part of the guide rail 83 or 84, is equipped rotatably at the crossing position of the guide rails 83, 84. The second pulley 113 rotating in one body with the movable rail 112 is equipped. An endless belt 122 is stretched between the first pulley 101 and the second pulley 113. Therefore, shock can be lessened and durability can be improved by absorbing the shock at the time when the operating element 63 touches the passive element 100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport sorting device for transporting a transport product on a transport surface and selectively transporting the transport product to the side of the transport surface.

[0002]

2. Description of the Related Art Conventionally, a conveying / sorting device of this type is provided with traveling frames on both sides and is synchronously rotated on each traveling frame, as described in, for example, JP-A-3-284529. An endless chain to be installed is arranged, a plurality of slats that form the conveying surface on the surface are juxtaposed between the chains on both sides, and a shoe that moves along the slats is fitted, and below the conveying surface. A guide mechanism for controlling the movement of the shoe is provided.

A plurality of slats integrally rotate with the rotation of the chains on both sides, and the shoes are brought closer to the side on the return side and come out on the conveying surface. The transported object carried in from the starting end portion is carried on a transportation surface composed of slats. If the conveyed product is not distributed, the shoe is conveyed without moving and is carried out from the end portion. Also, if the transported objects are sorted and transported, when the transported objects reach the sorting section of the transporting device connected to the side of the frame, the guide mechanism moves the shoes laterally along the slats. Then, the conveyed items are pushed laterally by the plurality of shoes and distributed to the distribution unit.

The guide mechanism is provided with a switcher for switching the moving direction of the shoe to one side or the other side at one position upstream of the distributing portion, and the moving direction is continuously switched to the other side by the switcher. A guide rail that guides the shoe toward the other side is provided in an inclined shape. Further, when the distribution portions are provided on both sides of the transport surface, the guide rails are crossed, and the movable rail mechanism is provided at the intersections of the guide rails.

This movable rail mechanism rotatably pivotally supports, on the upstream side of the intersection of the guide rails, a passive member that comes into contact with a shoe that moves along one of the guide rails depending on the rotating position. In addition, at a crossing position of the guide rails, a movable rail that guides the shoe continuously to the end of the guide rail according to the rotation position is rotatably supported, and the passive member and the movable rail are linked to each other. It is linked so that it can be interlocked with.

When the shoe moving along one of the guide rails comes into contact with the passive member and is rotated by pushing,
The movable rails are interlocked with each other via a link to be continuous with the end of one guide rail, and the shoe is moved along the one guide rail. Similarly, when the shoe moves along the other guide rail, the movable rail continues to the end portion of the other guide rail and moves the shoe along the other guide rail.

[0007]

Since the conventional movable rail mechanism has a rigid structure in which the passive member and the movable rail are connected by a plurality of links, the impact force when the shoe contacts the passive member is reduced. Since the rigid body as a whole receives the impact force, there is a problem that the durability of the shoe and the movable rail mechanism is deteriorated.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to improve the durability of a shoe and a movable rail mechanism in a transport sorting device.

[0009]

According to the invention of claim 1, traveling rails 20 arranged on both sides, an endless chain 41 traveling on each traveling rail 20, and chains 41 on both sides thereof.
Plural slats 51 juxtaposed between each other and each of these slats 51
A plurality of shoes 61 which are movably fitted along the slat 51 and project from the back surface of which an operating body 63 is projected, and at least cross-shaped guide rails which move the shoes 61 along the slats 51 through the operating bodies 63 of the shoes 61. A guide mechanism 71 having 83, 84 and a movable rail mechanism 91 provided at an intersection of the guide rails 83, 84 of the guide mechanism 71 are provided, and the movable rail mechanism 91 has an intersection of the guide rails 83, 84. Is rotatably supported on the upstream side of the guide rails 83, 84, and the operating body 63 of the shoe 61 is connected to one of the guide rails 83, 84.
A passive member 100 that is out of the moving range of the other guide rails 83 and 84 in a rotating state projecting in a moving range that moves along, and a first pulley 101 that rotates together with the passive member 100.
The guide 63 is rotatably supported at the intersection of the guide rails 83 and 84, and the actuating body 63 of the shoe 61 is continuously connected to one end of the guide rails 83 and 84 in the rotating direction. The movable rail 112 that moves along the 84 and the movable rail 11
The second pulley 113 rotates integrally with the second pulley 113, and the endless belt 122 stretched between the first pulley 101 and the second pulley 113.

According to a second aspect of the invention, in the first aspect of the invention, a tension roller 123 for tensioning the belt 122 is provided.

According to a third aspect of the present invention, in the first aspect of the present invention, the movable rail 112 is provided with a locking body 127 for positioning and locking the rotating position of the movable rail 112 at a position continuous with the ends of the guide rails 83 and 84. Is.

[0012]

According to the first aspect of the invention, the passive member 100 projects into the range of movement of the actuating body 63 of the shoe 61 moving along one guide rail 83 and deviates from the range of movement of the other guide rail 84, so that the movable rail is movable. In a state where 112 is continuous with the guide rail 84, the operating body 63 of the shoe 61 moving along the guide rail 83 contacts the passive member 100 and rotates the passive member 100. The rotation of the passive member 100 is performed by the first pulley 10
1, transmitted to the movable rail 112 via the belt 122 and the second pulley 113, and the movable rail 112 rotates.
Then, the passive member 100 pushed and rotated by the roller 65 deviates from the moving area of the roller 65 moving along the guide rail 83 and projects into the moving area of the guide rail 84, so that the actuating body 63 is moved by the passive member 10.
When passing the side of 0, the movable rail 112 is switched to a state in which it is continuous with the guide rail 83.

Further, the passive member 100 and the movable rail 112 are connected by a belt 122, and a part of the impact force when the actuating body 63 abuts on the passive member 100 is absorbed by the tension of the belt 122, and the impact force is absorbed. ease.

According to the invention of claim 2, in addition to the operation of the invention of claim 1, the tension roller 12 for tensioning the belt 122 is provided.
3. Adjust the impact absorption effect with 3.

According to the third aspect of the present invention, in addition to the operation of the first aspect of the invention, the locking member 127 positions the rotary position of the movable rail 112 at a position continuous with the ends of the guide rails 83 and 84. Stop.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 shows the overall structure of the transporting apparatus. Reference numeral 1 denotes a frame. In this frame 1, an upper frame 2 and a lower frame 3 are arranged in parallel along both sides, and the lower frame 3 has an installation surface. A plurality of lower legs 4 that support the upper frame 2 and the lower frame 3 and a plurality of intermediate legs 5 that support the upper frame 2 with respect to the lower frame 3 are mounted between the upper frame 2 and the lower frame 3. A plurality of lateral joint members 6 and 7 are connected between the space and the intermediate leg 5, respectively.

As shown in FIGS. 4 to 6, the upper and lower frames 2 and 3 are composed of an outer body frame 11 and a chain frame 12 connected to the inner side of the body frame 11. The main body frame 11 is arranged over the entire length of the frame 1, and the chain frame 12 includes turn units 31a and 31b and a catenary unit 13 which will be described later.
It is arranged except for part 1.

The chain frame 12 is formed with a dovetail-shaped cover mounting groove portion 13 on the outer surface of the upper surface and a rail portion 14 projectingly formed on the inner surface of the upper surface. The rail mounting groove portion 15 is formed, and the rail mounting groove portion 16 having a substantially H-shaped dovetail cross section is formed on the side surface.

In the cover mounting groove portion 13 of the chain frame 12 of the upper frame 2, a cross section L covering the upper side of the rail portion 14 is formed.
A character-shaped chain cover 17 is detachably attached via a locking claw portion 18. On the upper surface of the rail portion 14 of the chain frame 12 of the upper and lower frames 2 and 3, traveling rails 20 made of urethane resin are provided with protruding portions 19 on both sides of the upper surface.
Of the rail mounting groove 15
To the side surface of the rail portion 14,
A guide rail 22 made of urethane resin is mounted by fitting a fitting portion 23 having a substantially H-shaped cross section on the side surface into a rail mounting groove portion 16.

In FIG. 3, turn units 31a and 31b are arranged at the start side and the end side of the frame 1 in the conveying direction, respectively. Each turn unit 31a, 31b has a lower frame 3 with a support frame 32 having a plurality of lower legs 4.
Supports the lower surface of the lower frame 3 of this support frame 32.
Bearings 33 are supported on both side portions projecting laterally from, and a rotary shaft 34 is rotatably installed between the bearings 33 on both sides. Sprocket 35 as a rotating body is fixed near both sides of the rotating shaft 34, and an operating body 63 of a shoe 61, which is composed of a pair of discs inside the sprocket 35, and which will be described later.
Guide wheels 36 for guiding the are fixedly attached. A motor 37 that rotationally drives the rotary shaft 34 is coupled to one side of the rotary shaft 34 of the turn unit 31b on the terminal side.

A plurality of transfer rollers 38 are arranged between the upper frames 2 of the turn units 31a and 31b.

An endless chain 41 is stretched between the sprockets 35 on both sides of the turn units 31a and 31b on both ends. As shown in FIG. 4, in the chain 41, the inner end of a pin 44 that rotatably connects the end portions of the pair of inner links 42 and the end portions of the pair of outer links 43 has a long projection. A traveling roller 46 having a bearing 45 built therein is rotatably attached.

A plurality of slats 51 are juxtaposed between the chains 41 on both sides, and the surfaces of these slats 51 form a carrying surface 52 for carrying and carrying a carried object. This slat 51 is made of aluminum, and its surface is formed by extrusion molding into a substantially flat surface.Slat covers 53 are fitted on both sides and a bush 54 is press-fitted, and the pins of the chain 41 are fitted into the bush 54. 44 is inserted and connected to the chain 41.

In the assembled state of the frame 1, the traveling roller 46 of the chain 41 is placed on the traveling rail 20 so that it can travel, and the slat cover 53 is arranged to face the guide rail 22.

A shoe 61 is attached to each slat 51 so as to be movable along the slat 51. The shoe 61 is made of urethane resin, for example, and is integrally formed in a substantially U-shaped cross section that fits on the front surface, the front surface, and the back surface of the slat 51, and cushioning members 62 for pressing the conveyed object are attached to both sides. There is. An actuator 63 is attached to the back of the shoe 61,
The actuation body 63 includes a pin 64 and a roller 65 rotatably attached to the pin 64.

In FIG. 3, a shoe 61 is attached to the frame 1.
A guide mechanism 71 for controlling the lateral movement of the shoe 61 with respect to the slat 51 is mounted via the actuating body 63. In this guide mechanism 71, guide members 72 for guiding the operating body 63 of the shoe 61 are arranged on the upper surfaces of the plurality of lateral joint members 6 so as to be continuous with the guide wheels 36 of the turn unit 31a on the start end side. A first switching portion 73 and a second switching portion 74, which switch the moving direction of the shoe 61 to one side or the other side, are provided continuously to the guide member 72. From the second switching portion 74, one side or the other side is provided. A guide member 75 for guiding the operating body 63 of the shoe 61 moving along the side to each guide wheel 36 of the turn unit 31b on the terminal side is provided, and a return side switching unit (not shown) is provided on the return side. I have it.

The first switching portion 73 is provided with a switching device 76 for switching the moving direction of the shoe 61 to one side or the other side on one side of the upper surface of the lateral joint member 6, and is continuous with this switching device 76. A parallel guide rail 77 for guiding the roller 65 of the shoe 61 along one side and an inclined guide rail 78 for guiding the shoe 65 toward the other side, and the roller 65 of the shoe 61 on the other side. A parallel guide rail 79 is arranged to guide along the other side.

In the second switching portion 74, the switching devices 80 are arranged on both sides of the upper surface of the horizontal joint member 6, and the switching devices are connected to each other.
Parallel guide rails 81 and 82 for guiding the roller 65 of the shoe 61 along each side and sloped guide rails 83 and 84 for guiding the shoe 65 toward the other side are arranged continuously to the guide rail 80. A movable rail mechanism 91 is arranged at the intersection of 83 and 84 so that the roller 65 moves along the guide rails 83 and 84 through the intersection.
Is provided.

As shown in FIG. 1, each of the guide rails 83, 84 is divided into an upstream rail member 83a, 84a and a downstream rail member 83b, 84b at an intersection, and the upstream rail member 83a, 84a is divided. A rail surface 85 on which the roller 65 moves is formed on the inner surfaces of 84a facing each other, and a rail surface 86 is formed on the outer surfaces of the downstream rail members 83b, 84b.

Next, the movable rail mechanism 91 has the structure shown in FIGS. The movable rail mechanism 91 has different types depending on the distribution angle of the conveyed object, and for example, distribution angles are 30 ° and 22 °. In this embodiment, when the distribution angle α is 30 °, It corresponds.

The movable rail mechanism 91 is provided with a base 92, and substantially L-shaped attachment pieces 93 at both ends of the base 92 are bolted to the upper surfaces of the upstream and downstream lateral joint members 6. On the upper surface of the base 92, the rail members 83 of the guide rails 83 and 84 are provided.
The ends of a and 83b are mounted by a mounting bracket 94, and the ends of the rail members 84a and 84b are mounted on a support base 95.

Both rail members 83a attached to the base 92
, 84a, a supporting table 96 is erected upright.
A partition member 98 on the upstream side is mounted on 6 via a pillar member 97. The partition member 98 is made of resin and is formed in a substantially rhombic shape, and is supported by the support member 97 at the height of the roller 65 of the shoe 61, and partitions the roller 65 moving along the rail members 83a and 84a. Together with each rail member 83a,
Guide the roller 65 to the intersection with 84a. A support shaft 99 is installed between the downstream end of the partition member 98 and the support base 96.

A passive member 100 is rotatably fitted on the upper side of the support shaft 99, and a first pulley 101 composed of a timing pulley is rotatably fitted on the lower side thereof. . The passive member 100 and the first pulley 101 are integrally and rotatably fixed to each other. The passive member 100 is the support shaft 99.
A metal base 104 is provided with a projection 103 protruding from a base 102 through which the resin is inserted, and a resin contact member 105 is attached to the upper surface of the tip of the base 104. On both side surfaces of the contact member 105, arc-shaped contact surfaces 106 that contact the roller 65 are formed.

A partition member 108 on the downstream side is mounted on the support base 95 via a pillar member 107. This partition member 108
Is made of resin and formed into a substantially triangular shape, and is supported by the column member 107 at the height of the roller 65 of the shoe 61, and the recesses 109 into which the ends of the rail members 83b and 84b are fitted are formed on both sides. . In addition, the tip of the partition member 108 is a guide rail 8
It is located at the intersection of 3 and 84, and a spindle 111 is installed between the intersection and the bearing fitting 110 mounted on the base 92.

The support shaft 111 has a movable rail 11 on the upper side.
2 is rotatably fitted, and a second pulley 113, which is a timing pulley, is rotatably fitted on the lower side. The movable rail 112 and the second pulley 113 are integrally and rotatably fixed to each other. Movable rail 112
From the base 114 through which the support shaft 111 is inserted to the rail surface on both sides.
A flat plate-shaped rail portion 116 having 115 is provided in a protruding manner, and a resin contact member 117 is attached to the tip of the rail portion 116.

An oscillating plate 118 is fixed to the lower surface of the second pulley 113, and a damper 121 for urging the rod 119 attached to the oscillating plate 118 and the bracket 120 attached to the base 92 in the extending direction. Both ends of each are rotatably connected. Then, by the action of the damper 121, the second pulley 113 and the movable rail 112 are rotated in opposite directions on both sides via the swing plate 118 with the straight line connecting the connection fulcrum of the bracket 120 and the support shaft 111 as a sakai. Energize.

An endless timing belt 122 is stretched around the first pulley 101 and the second pulley 113, and the belt 122 is tensioned by a tension roller 123. The tension roller 123 is attached to the base 92 and is rotatably supported by the tip of a lever 124.

Support blocks 125 are mounted on the bases 92 on both sides of the intersection, and a support plate 126 is installed above the belt 122 between the support blocks 125. A pair of locking bodies 127 are attached to both sides of the upper surface of the support plate 126. The locking body 127 is a rail member 83.
A recess 128 for fitting the ends of a and 84a is formed, and the turning position of the movable rail 112 is set to the rail member 83a ,.
A concave locking portion 129 for positioning and locking is formed at a position continuous with the end of 84a.

The return-side switching device is composed of the horizontal joint member 7
Is installed on the lower surface of the
The moving direction of 61 is switched to one side or the other side.

A catenary unit 131 is arranged on the lower frame 3 on both sides.
1, the chain frame 12 is not provided, the chain 41 and the slats 51 are slackened by their own weight, and the extension of the chain 41 is absorbed.

As shown in FIG. 3, a carry-in conveyor (not shown) is continuously provided at the start end of the frame 1, and a carry-out conveyor (not shown) is continuously provided at the end of the frame 1. In the section, sorting conveyors 141 are connected to the other side of the first switching section 73 and both sides of the second switching section 74, respectively. Note that these sorting conveyors 141
As shown in FIGS. 5 and 6, is a roller conveyor having a plurality of rollers 142, and the end of a frame 143 supporting the rollers 142 is connected to the main frame 11 of the upper frame 2.
It is bolted on.

Next, the operation of this embodiment will be described.

Along with the rotation of the chains 41 on both sides, the plurality of slats 51 are integrally rotated, and the shoe 61 is brought closer to one side or the other side by the return side switching portion, and the turn unit on the start end side is formed. It advances onto the transport surface 52 through 31a.

Then, the conveyed product carried in from the carry-in conveyor is transferred and carried on a carrying surface 52 composed of a plurality of slats 51.

For the conveyed goods which are not sorted and conveyed, the shoe 61 is moved along one side or the other side of the frame 1 so that the conveyed matter is conveyed to the terminal end while being placed on the slats 51 and is conveyed to the conveying conveyor. .

For the conveyed goods to be sorted and conveyed, the moving direction of the plurality of shoes 61 in the section on which the conveyed goods are placed is changed by the first switching portion 73 or the second switching portion 74. It is moved to the side and sent to the sorting conveyor 141.

In the second switching portion 74, the shoe 61 that has moved to one side or the other side is moved along the guide rail 83 or the guide rail 84 by each switching machine 80, and the guide rail is moved. Rail switching is performed by the movable rail mechanism 91 at the intersection of 83 and 84.

In the movable rail mechanism 91, in the state shown in FIG. 1, the passive member 100 protrudes into the movement area of the roller 65 which moves along the guide rail 83 and moves out of the movement area of the guide rail 84, so that the movable rail 112 moves. It is continuous with the guide rail 84, and the state of the passive member 100 and the movable rail 112 is held by the biasing force of the damper 121 in the clockwise direction.

When the roller 65 of the shoe 61 moves along the guide rail 84, the roller 65 is moved by the passive member 10
Pass the side of 0 and move from the rail member 84a to the movable rail 112.
Is guided to the rail member 84b via.

When the roller 65 of the shoe 61 moves along the guide rail 83, the roller 65 contacts the passive member 100 to rotate the passive member 100 counterclockwise. The rotation of the passive member 100 is performed by moving the movable rail 11 via the first pulley 101, the belt 122 and the second pulley 113.
2 is transmitted to the movable rail 112, and the movable rail 112 rotates counterclockwise.

Then, the passive member 100 pushed and rotated by the roller 65 deviates from the moving area of the roller 65 which moves along the guide rail 83 and projects into the moving area of the guide rail 84, and the roller 65
Is moving past the side of the passive member 100, the movable rail 11
2 is switched to a state in which it continues to the guide rail 83. The state of the passive member 100 and the movable rail 112 is also a damper.
It is held by the urging force of 121 in the counterclockwise direction.

Therefore, the roller 65 that has moved along the guide rail 83 passes the side portion of the passive member 100, and the rail member 83a passes through the movable rail 112 and the rail member 83b.
Will be guided to.

In this way, the passive member 100 is moved by the roller 65 of the shoe 61 moving along the guide rails 83 and 84.
The movable rail 112 by pushing and rotating the corresponding guide rail.
It is possible to switch to the 83, 84 side as a unit.

Further, since the passive member 100 and the movable rail 112 are connected by the belt 122, the roller 65 is connected to the passive member 10.
Part of the impact force when it contacts 0 is absorbed by the tension of the belt 122, and the impact force can be alleviated.
The durability of 61 and the movable rail mechanism 91 can be improved.

Further, the effect of absorbing the impact force can be adjusted and set by the tension roller 123 for tensioning the belt 122.

Further, the locking body 127 allows the movable rail 11
The rotation position of 2 can be positioned and locked at a position continuous with the ends of the guide rails 83 and 84.

Next, FIGS. 7 and 8 show another embodiment of the present invention. This embodiment corresponds to the case where the distribution angle β of the conveyed product is 22 °. By the way, when the distribution angle β is small, the interval between the rail members 83a and 84a of the guide rails 83 and 84 becomes narrow, and the rotation fulcrum part of the passive member 100 disposed between them enters the moving range of the roller 65. Therefore, the passive member 100 is pushed and rotated by the pin 64 of the shoe 61.

In this embodiment, the basic structure is the same as that of the previous embodiment, but the partition member 98 and the passive member 100 are connected to the pin 64.
Arrange at the height of. Then, when the roller 65 of the shoe 61 is guided along each of the guide rails 83 and 84, the passive member 100 is pushed and rotated by the pin 64 so that the movable rail 112 is integrated with the corresponding guide rails 83 and 84. Can be switched to each other. Also in the case of this embodiment, the same effect as that of the above embodiment can be obtained.

[0060]

According to the invention of claim 1, since the passive member and the movable rail are connected by the belt, a part of the impact force when the actuating body abuts the passive member is absorbed by the belt, and the impact force is absorbed. Can be alleviated, and the durability of the shoe and the movable rail mechanism can be improved.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the effect of absorbing the impact force can be easily adjusted and set by the tension roller for tensioning the belt.

According to the third aspect of the invention, in addition to the effect of the first aspect of the invention, the locking member ensures that the pivoting position of the movable rail is continuous with the end of the guide rail. You can stop.

[Brief description of drawings]

FIG. 1 is a plan view of a movable rail mechanism showing an embodiment of a transport distribution device of the present invention.

FIG. 2 is a sectional view of a movable rail mechanism according to the above embodiment.

FIG. 3 is a perspective view of an entire conveying / sorting device according to the embodiment.

FIG. 4 is a perspective view of a slat portion of the embodiment.

FIG. 5 is a cross-sectional view of one side portion of the frame of the above embodiment.

FIG. 6 is an enlarged cross-sectional view of one side portion of the frame of the above embodiment.

FIG. 7 is a plan view of a movable rail mechanism showing another embodiment of the present invention.

FIG. 8 is a cross-sectional view of a movable rail mechanism of the above embodiment.

[Explanation of symbols]

 20 Traveling rail 41 Chain 51 Slat 61 Shoe 63 Actuator 71 Guide mechanism 83, 84 Guide rail 91 Movable rail mechanism 100 Passive member 101 First pulley 112 Movable rail 113 Second pulley 122 Belt 123 Tension roller 127 Locking body

Claims (3)

[Claims] 1. A traveling rail arranged on both sides, an endless chain traveling on each traveling rail, a plurality of slats arranged in parallel between the chains on both sides, and along these slats. A guide mechanism having a plurality of shoes movably fitted and having an operating body projectingly provided on the back surface thereof, and a guide mechanism having at least intersecting guide rails for moving the shoes along the slat via the operating body of the shoe, and the guide mechanism. And a movable rail mechanism provided at the intersection of the guide rails, the movable rail mechanism being rotatably supported on the upstream side of the intersection of the guide rails, and the operating body of the shoe being one guide rail. A passive member that is out of the movement range of the other guide rail in a rotating state protruding in a movement range that moves along the first pulley, a first pulley that rotates integrally with the passive member, and an intersection position of the guide rails. A movable rail that is movably supported and that moves the operating body of the shoe along one of the guide rails continuously with the end of the one guide rail in the direction of rotation, and that rotates integrally with the movable rail. A transport sorting device comprising a second pulley and an endless belt stretched between the first pulley and the second pulley. 2. The conveying / sorting device according to claim 1, further comprising a tension roller for tensioning the belt. 3. The transport sorter according to claim 1, further comprising a locking body that positions and locks the rotating position of the movable rail at a position continuous with the end of the guide rail.