JPS6048420B2 - sorting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sorting device, and particularly relates to a sorting device in which a belt conveyor (including a steel belt conveyor, etc.) for conveying loads and a number of consignee recipients are placed facing each other across the belt conveyor. and at least a pair of branching chutes,
When discharging the loads conveyed on the belt conveyor to either one of the pair of recipients, it is important to keep the distance between the loads conveyed on the belt conveyor as close as possible. This invention relates to a sorting device that can improve sorting efficiency as much as possible.

2. Description of the Related Art Sorting devices are conventionally known devices that manually sort loads into predetermined destinations.

1 to 3 and 4 to 5 respectively show examples of conventional sorting devices, and these will be explained below with reference to the figures, and their drawbacks will be pointed out. In Figure 1, a
is a steel belt of a steel belt conveyor which is a type of belt conveyor, and the steel belt a is configured to move in the direction of arrow X.

On both sides of this steel belt a, branch chutes g, g...
Consignee populations i, i... are arranged. As shown in Fig. 2 and Fig. 3, the branch chutes g are so-called slide-shaped ones with both edges bent upward at right angles to prevent the sliding load from falling off. The tip of g is connected to a sorting destination (not shown). Further, in particular, the receivers i of the illustrated branch chute g are arranged to face each other with the steel belt a interposed therebetween. The width of each receiver I, i, etc. of these branch chutes G, g, etc. is designed so that one side of the rear side in the direction of movement of the steel belt a is expanded diagonally so that the cargo can easily pass through. and these consignee populations I, i...
In particular, on one side of the forward side of the steel belt a in the traveling direction, there is a rotation axis C perpendicular to the upper surface of the steel belt a, c...
・ is provided. As shown in FIGS. 1 and 2, one end of a rotating arm b called a diverter is fixed to the upper end of these rotating shafts C, c, and so on, and as the rotating shaft c rotates, It is designed to rotate along the upper surface of the steel belt a as indicated by the arrow y in FIG. on the other hand,
The rotating shaft c is rotatably supported by a bearing member d attached to the frame h of the steel belt conveyor via a bracket, as shown in FIGS. 2 and 3. Also, a rotating shaft c that passes through the bearing member d vertically and projects downward.
A fluid cylinder f is connected to the tip of the swing arm b via a lever e, and the swing arm b is rotated by the fluid cylinder f. In the above configuration, the swing arm b provided at the receiver i of the branch chute g that drives the fluid cylinder f to pass it to the desired sorting destination is swung from the imaginary line position to the solid line position in FIG. Then, the load j conveyed on the steel belt a rotates a. - At the same time as it hits the arm b, its direction changes due to the combined force of the force in the conveying direction by the steel belt a and the reaction force received from the side of the swing arm b, and while it is being held against the side of the swing arm b, Finally, a branch shoe is formed from the steel belt a through the receiver i. It will be paid out to 卜g. However, the conventional device described above has the following drawbacks. 1. In order to discharge the load j conveyed on the steel belt a by this conventional device, the rotating arm b must be moved before the load j reaches the desired discharge position.
must be in a state where it obliquely obstructs the front of the load j in the transport direction.

On the other hand, when the swing arm b swings from the standby position shown by the phantom line A in FIG. 1 to the predetermined setting position shown by the solid line opening in the same figure, s, and when passing through this part s, if there is a load in this part s that is being transported ahead of the target load, the swing speed of the swing arm b is relatively fast. The load being conveyed in front of this will be affected by contact with the rotating swing arm b, and in the worst case, it will be dropped under the steel belt a by the swing arm b. Therefore, a sufficient distance must be provided between the target load and the load being conveyed in front of this load so that the rotating arm b can freely rotate without contacting them. This limits the number of loads that can be sorted within a certain period of time, that is, the sorting capacity. 2 When the load is discharged from the steel belt a to the branch chute g, it slides along the side surface of the swing arm b while resisting the frictional force with the side surface of the swing arm b, and reaches the receiver i of the branch chute g. Since the load is guided, if the angle between the swing arm b and the transport direction of the load is too large, the above-mentioned frictional force becomes large and it becomes difficult to effectively discharge the load.

Therefore, it is necessary to make the swing arm b long, which increases the moment of inertia structurally, which is disadvantageous in terms of design (operating time, cost, etc.), and also limits the mounting pitch of the branching chute. Next, the sorting apparatus shown in FIGS. 4 to 6 will be explained.

In FIG. 4, a indicates a steel belt of a steel belt conveyor, which is a type of belt conveyor, and the steel belt a moves in the direction of arrow X. On both sides of this steel belt a, receivers I, i... of branch chutes G, g, etc. are arranged alternately with the steel belt a in between, at appropriate intervals in the direction of progress of the steel belt a. has been done. As shown in Figs. 5 and 6, the branching chute g is a so-called slide-like structure in which both edges are bent upward at right angles to prevent the sliding load from falling off. The tips of G, g, . . . are connected to a sorting destination (not shown). The width of each receiver I, i, etc. of these branch chutes G, g, etc. is designed so that one side of the rear side in the direction of movement of the steel belt a is expanded diagonally so that the cargo can easily pass through. ing. For each consignee population I, i..., in particular, at a position facing the rear side of the steel belt a in the traveling direction with the steel belt a in between, there are rotating axes C, c perpendicular to the upper surface of the steel belt a. ...is erected. These rotation axes C,
As shown in FIGS. 4 and 5, one end of a rotating arm b called a diverter is fixed to the upper end of c..., as shown in FIG. 4 as the rotating shaft c rotates. It is designed to rotate along the upper surface of the steel belt a as indicated by the arrow y. On the other hand, as shown in FIGS. 5 and 6, the rotating shaft c is rotatably supported by a bearing member d attached to the frame h of the steel belt conveyor via a bracket. Further, an electric motor F is connected to the tip of a rotating shaft c that vertically penetrates the bearing member d and projects downward through levers El, e2, and e3, and the guide arm b is controlled by the electric motor F. It is designed to rotate. In the above configuration, the sorting operation is performed as follows.

First, as shown by the solid line in FIG. 4, the swing arm b is placed on standby in a state parallel to the steel belt a, and in this state, the load j is conveyed on the steel belt a at appropriate intervals. The number of recipients i desired for this transported cargo j
When passing in front of , electric motor F is operated to swing swing arm b from the solid line position to the imaginary line position in FIG. By the rotation of the swing arm b, the cargo j is forced to change its direction, slides on the steel belt a, and is finally pushed out to the receiver i. The conventional device described above has the following drawbacks. 1 In this conventional device, it is necessary to provide a swing arm b at a position facing each consignee i with the steel belt a in between, so the conventional device shown in FIGS. If each consignee I, i... is placed in a position facing each other with a steel belt a in between, the rotating arm b that delivers cargo to each consignee i will block the consignee i on the opposite side. Therefore, as shown in FIG. 4, the receivers i can only be arranged alternately with the steel belt Ja in between.

Therefore, the number of branch chutes g that can be installed on a steel belt a of a certain length is small.

2. As a result of branching chutes g being arranged alternately on both sides of steel belt a, when passing under steel belt a for work purposes, it is only possible to cross under steel belt a diagonally; Therefore, traffic under the steel belt a is obstructed.

The present invention has been made to improve the drawbacks of the conventional sorting apparatus described above. An object of the present invention is to provide a sorting method and apparatus that can sort as many loads as possible to as many destinations as possible within a predetermined time.

A preferred embodiment of the sorting device of the present invention will be explained in detail below with reference to the accompanying drawings.

The drawings are for explaining the device of the present invention, and FIG. 1 is a plan view showing an example of a conventional sorting device, FIG. 2 is a perspective view of the same, and FIG. 3 is a view taken along arrow A-A in FIG. A sectional view, FIG. 4 is a plan view showing another example of a conventional sorting device, and FIG. 5 is a perspective view of the same.
6 is a side sectional view taken along the line B-B in FIG. 4, FIG. 7 is a plan view showing an embodiment of the sorting device according to the present invention, FIG. Enlarged side sectional view taken along the line C-C in the figure, No. 10
The figure is a partially cutaway side view taken in the direction of arrow D in FIG.

In FIGS. 7 and 8, 1 is a steel belt conveyor, and the steel belt conveyor 1 has a frame 2,
The frame 2 includes a drive drum 3 and a driven drum 4 rotatably attached to both ends of the frame 2 in the longitudinal direction, and an endless steel belt 5 stretched between these drums 3 and 4. The rotational force obtained by the electric motor 6 attached at the bottom is transmitted via the chain 7 to the sprocket 7 attached to the rotating shaft of the drive drum 3, thereby rotating the endless belt 5 and moving the load 8 in the direction of the arrow 9. It is designed to be transported. Furthermore, a charging conveyor 10 used for loading the load 8 is connected to one end of the steel belt conveyor 1 on the driven drum 4 side.
Steel belt conveyor (hereinafter simply referred to as conveyor) 1
In the illustrated example, branch chutes 11, 11, .
The consignee populations 12, 12... of 11... face each other with the conveyor 1 in between, that is, the conveyor 1
They are placed symmetrically between the two sides.

The branching chute 11 is a slide consisting of a floor plate 13 which is inclined so as to gradually descend as it moves away from the conveyor 1, and side plates 14, 14 formed on both side edges of the floor plate 13 upward in a direction perpendicular to the floor plate 13. The height of the upper end 13a of the floor plate 13 is approximately equal to the height of the upper surface of the conveyor 1, and the branch chutes 11, 11, . It is done like this. Branch chute 11, 11...
The upper end of each of the conveyor 1
A long hole 15 is formed in the long hole 15, which is long in the conveying direction 9. Particularly in one end of the long hole 15 on the upstream side of the conveyor 1, that is, on the rear side with respect to the conveying direction 9, there is a A rotating shaft 16 extending vertically is inserted. One end 17a of a rotating arm 17 oriented perpendicular to the rotating shaft 16 is integrally fixed to the upper end of these rotating shafts 16. Therefore, these rotating arms 17,1
7... indicates arrow 1 in FIG. 7 as the rotating shaft 16 rotates.
As shown in 8, it is configured to rotate along the upper surface of the conveyor 1. Next, the structures of the steel belt conveyor 1, branch chute IL swing arm 17, etc. described above will be explained in more detail with reference to FIGS. 9 and 10. The frames 2 of the conveyor 1 are arranged in two rows on the floor 19 at appropriate intervals in the direction of movement of the conveyor 1. row of pillars 20,
20..., and horizontal ropes 21, 21... spanned over the upper ends of these pillars 20, 20.... Yokoro 2
1, two steel materials 2:2, 22 each having a C-shaped cross section (hereinafter referred to as C-shaped steel materials) extending parallel to each other in the direction of movement of the conveyor 1 are fixed, and these C-shaped steel materials 22 , 22, upper carrier rollers 23 for supporting and guiding the steel belt 5 are rotatably supported parallel to each other and at an appropriate interval. On the other hand, near the lower ends of the pillars 20, 20..., there are two steel members (hereinafter referred to as L-shaped steel members) 24, each having an L-shaped cross section and extending parallel to each other in the direction of movement of the conveyor 5A1. 24 are provided. Between these L-shaped steel members 24, 24, lower stage carrier rollers 25, 25... are rotatably supported parallel to each other at appropriate intervals 4, and these carrier rollers 25, 25... The return of the steel belt 5 is supported and guided by . In addition, a rectangular mounting plate 26 shown in FIGS. 9 and 10 is horizontally provided between the pillars 20 and 2 slightly below the horizontal ropes 21, 21... ,
This mounting plate 26 is supported by a pair of pillars 20, 20 facing each other with the conveyor 1 in between, and vertical bars 27, 27 attached to the lower surfaces of the C-shaped steel members 22, 22 facing downward. ing. As shown in FIGS. 9 and 10, two bearing members 28, 28 are arranged in a line on the mounting plate 26 at a position corresponding to the center line of the conveyor 1. A rotary shaft 29 is rotatably supported in the conveyor 1 in the direction in which the conveyor 1 moves. This rotating shaft 2
One end of a lever 30 is integrally fixed to one end of the lever 30 in a direction perpendicular to the rotating shaft 29, and the other end of the lever 30 is connected to a hydraulic cylinder such as a hydraulic cylinder or a pneumatic cylinder. The tip of the piston rod 32 of the cylinder 31 is pivotally attached. The fluid cylinder 31 is mounted on the mounting plate 2 described above.
It is pivotally connected to a pair of brackets 34a and 34b erected on a cylinder base 33 provided on the cylinder 6. Further, the center portion of a bar 35 (hereinafter referred to as a seesaw rod) oriented perpendicularly to the rotating shaft 29 is integrally fixed to the other end of the rotating shaft 29. on the other hand,
Horizontal bars (made of I-beam steel in the illustrated example) 36, 36 extending toward the sides of the conveyor 1 are attached to the intermediate portions of the pair of pillars 20, 20 that face each other with the conveyor 1 in between. Guide members 37, 37 extending vertically upward are attached to the tips of these horizontal bars 36, 36. The guide member 37 is formed with a protrusion 38 that extends in the vertical direction and has a substantially T-shaped cross section.The protrusion 38 of the guide member 37 has a sliding member 40 provided with a groove 39 that has a T-shaped cross section. It is fitted so that it can slide freely in the direction.
A bearing member 41 is integrally attached to the side surface of the sliding member 40, and the rotating shaft 16 passing through the bearing member 41 in the vertical direction is rotatable via ball bearings 41a, 41a. is supported by.

One end 17a of the rotating arm 17 is integrally attached to the upper end of the rotating shaft 16, as shown in FIG. The swing arm 17 is a member having a substantially U-shaped cross section with its upper surface 17b inclined to match the inclination angle of the floor plate 13 of the swing chute 11. It is fixed. In addition, this rotating arm 17
A pull-in roller 43 is provided in parallel with the steel belt 5 in the groove 42 provided between the steel belt 5 and the steel belt 5. It is rotatably supported by bearings 45, 45 on roller bases 4, 44 mounted in a more horizontal direction. On the other hand, connecting rods 46 are provided on the side surfaces of the bearing members 41, 41, respectively, toward the inside of the conveyor 1.
46 are integrally attached, and the tips of these connecting rods 46 are connected to the ends 35a, 35b of the seesaw rod 35 via cam joints 47, 47, respectively. Further, at the tips of the rotating shafts 16, 16 protruding from the lower ends of the bearing ends 41, 41, respectively, these rotating shafts 1
6, 16 in the direction perpendicular to the rotating shaft drive lever 4.
8 and 48 are integrally attached, and at the tips of these rotary shaft drive levers 48 and 48, one ends of extendable connecting rods 49 and 49 are rotatable in the horizontal direction and are vertically variable in angle. installed. These connecting rods 49
, 49 is attached to a lever 52 integrally attached to a shaft 50 of an electric motor 51, which is attached with its axis 50 perpendicular to the side surface of the horizontal bars 36, 36, so as to be rotatable in a horizontal plane. In addition, it is attached vertically so that the angle can be changed. Next, the operation of the apparatus of the present invention having the above configuration will be explained in detail.

When a load is placed on the input conveyor 10, this load is conveyed on the input conveyor 10 and transferred to the steel belt conveyor 1.
reaches the side end of the driven drum 4, and then automatically moves onto the steel belt conveyor 1. After being transferred to , it is conveyed on the steel belt 5 in the direction shown by the arrow 9 in FIGS. 7 and 8.

Now, let us consider discharging the transported load 8 to the branch chute 11a located in the second row on the front right side in the transport direction. In this case, first, it is shown in Figure 9. The fluid cylinder 31 is actuated to move the piston rod 32 backward in the direction shown by the arrow C. This linear movement of the piston rod 32 is converted into a rotational movement of the rotating shaft 29 via the lever 30, and the seesaw rod 35 fixed to the tip of the rotating shaft 29 rotates and rotates as the shaft 29 rotates. It will stop at an inclined position as shown by the solid line in the figure. When the seesaw rod 35 is tilted as shown in FIG.
The ends 35a, 35b of the conveyor 1 are raised and lowered, and this movement is transmitted to a pair of bearing members 41, 41 facing each other with the conveyor 1 in between, via cam joints 47, 47, respectively. Here, each of the bearing members 41, 41 is supported by the guide members 37, 37 via the sliding members 40, 40, and the sliding members 40, 40 are guided by the guide members 37, 37, respectively. It is restricted to move linearly only in the vertical direction, and furthermore, as the seesaw rod 35 rotates, the force in the width direction of the conveyor 1 is received by each of the bearing members 41, 41 due to the arc-shaped trajectory drawn by the tip of the seesaw rod 35. is released by the cam joints 47, 47, so one of the bearing members 41, 41 rises vertically as shown in FIG. 9, and the other falls vertically. As mentioned above, since the rotating shafts 16, 16 of the swing arms 17, 17 are rotatably supported by the bearing members 41, 41, respectively, when the bearing members 41, 41 move up and down in this way, One of the pair of rotating arms 17, 17 provided at opposite positions with the conveyor 1 in between (the branch chute 11a that passes through to the intended sorting destination and the branch chute 11 on the opposite side)
b) protrudes upward from the upper surface of the steel belt 5 of the conveyor 1, and conversely, the other (provided at the receiving area 12 of the branch chute 11a leading to the intended sorting destination) ) will sink below the floor plate 13 of the branching chute 11a, and in particular, in the illustrated example, the sunken upper surface 17b of the swing arm 17 and the upper surface of the floor plate 13 will coincide as shown in FIG.

In this way, if the swing arm 17 provided at the receiver 12 of the branch chute 11a leading to the intended sorting destination is buried downward, and the opposing swing arm 17 is made to protrude upward, these Swivel arm 17, 17
The conveyors 1 and 1 wait until the load 8 reaches a predetermined position indicated by the imaginary line in FIG. 7. This position is determined by taking into account the length of the swing arm 17, the swing speed, the conveyance speed of the conveyor 1, etc. , as shown in FIG. 7, is located almost in front of the recipient population 12. Next, when the load 8 conveyed on the conveyor 1 reaches a predetermined position, the seventh
As shown in the figure, the swing arm 17 provided at the target receiver 12 and the receiver 12 on the opposite side is rotated as shown by the imaginary line in the figure. This pivoting motion is transmitted from the electric motor 51 to the target rotating shaft 16 of the rotating arm 17 via the rotating lever 52, connecting rod 49, and rotating shaft drive lever 48 shown in FIGS. 9 and 10. It is carried out with

This motion is similar to the mechanism in which the driving wheel of a locomotive rotates the driven wheel using a rod. That is, when the electric motor 51 rotates once, this rotational motion is transmitted to the lever 52, the connecting rod 49, and the rotating shaft drive lever 48. Thus, the intended turning arm 17 is reciprocated by a predetermined angle. In this way, when the swing arm 17 swings around the rotating shaft 16, the conveyed load 8 is prevented from advancing by the side surface of the swing arm 17, and is pushed out in the width direction of the conveyor 1, and finally Target recipient population12
It will be paid out to. At this time, the swing arm 17 provided to the target recipient population 12 is buried in the elongated hole 15 as shown in FIG. 13, the load 8 is transferred from the steel belt 5 to the retracting roller 43 and the upper surface 1 of the swing arm.
Ski down 7b and take branch chute 1 without any interference.
1a, and transported to a desired sorting destination.

In this manner, while the electric motor 51 rotates once, the articles 8 are delivered to the desired number of recipients 12, and the swing arm 17 is returned to the standby position parallel to the conveyor 1, completing the sorting operation. On the other hand, contrary to the above explanation, when it is desired to discharge the load 8 conveyed on the conveyor 1 to the branching chute 11b on the opposite side, the fluid cylinder 31 is operated and the piston rod 32 is moved as indicated by the arrow in FIG. Move forward in two directions. When the piston rod 32 is advanced, the same process as described above occurs, and contrary to the case described above, the swing arm 17 on the branch chute 11b side sinks downward, and the swing arm 17 on the Z branch chute 11a side projects upward. So, from now on,
There is also a system for discharging the load 8 to the branch chute 1b after going through the same process as described above. In this way, the sorting device according to the present invention allows the pair of rotating arms 17, 17 provided at opposing positions with the conveyor 1 in between to be able to be raised and lowered alternately, that is, one of them protrudes above the top surface of the conveyor 1. By making the other part sink downward when doing so,
Although the swing arm 17 is one that swings using the upstream side of the conveyor 1 as a fulcrum, it is possible to arrange the receivers 12 of the branch chute 11 facing each other with the conveyor 1 in between. Branch chutes 11 can be arranged closely on both sides of the conveyor 1. In the above embodiment, only four branch chutes 11 are arranged on both sides of the conveyor 1, but this is not limited to the illustrated example, and may vary depending on the length of the conveyor 1 and the number of sorting destinations. Of course, a larger number can be arranged depending on the situation.

Further, in the above embodiment, the seesaw rod 35 and the fluid cylinder 31 are used as means for alternately raising and lowering the bearing members 41, 41, but the means for alternately raising and lowering the bearing members 41, 41 is limited to the above. For example, a fluid cylinder is attached upward to each of the bearing members 41, 41, and an electrical sequence is set to alternately open and close a solenoid valve interposed in a circuit that supplies pressurized fluid to these fluid cylinders. Of course, it is also possible to configure a circuit. Further, in the above embodiment, only a fluid cylinder was shown as a means for driving the seesaw rod, but the means for driving the seesaw is not limited to the above, and for example, a combination of an electric motor and a cam, a combination of an electric motor and a It goes without saying that various mechanisms such as a combination with a threaded rod or an electromagnetic solenoid can be employed, and in short, any mechanism that can drive the seesaw rod in a seesaw manner can be employed. Furthermore, although the above embodiments have been described with respect to a sorting apparatus that employs a steel belt conveyor, other types of belt conveyors can also be employed in the sorting apparatus of the present invention.

In addition, in the above embodiment, each branch chute 11...
・ are arranged perpendicularly to the conveyor 1, but the direction of the branch chutes is not limited to this.In short, the part that receives the cargo, that is, the cargo receivers, face each other with the conveyor 1 in between. It suffices if it is arranged in such a way that it falls in the same position. In addition, in the above embodiments, an electric motor is used as a means for swinging the swing arm, but the means for swinging the swing arm is not limited to the above, and a fluid cylinder, a link, a lever, etc. may also be used. Of course it's a good thing. Furthermore, in the above explanation, the explanation of means for detecting that the load 8 has reached a predetermined position has been omitted, but these may be of any type such as a limit switch or a photo switch, and signals from these switches may be used. Any circuit may be used to process this, and a person skilled in the art can easily do this using a sequence circuit or the like. Further, the branch chute 11, 1 in the above explanation
1... shows what is called a slide-like thing,
The shape of the branching chute is not limited to the above,
Of course, a cylindrical one or a belt conveyor may also be used. As is clear from the above, according to the present invention, the following excellent effects can be exhibited. 1 By adopting a rotating arm that rotates using the upstream side of the conveyor as a fulcrum, the rotating movement when discharging loads is
This can be done immediately after the load in front passes in front of the intended recipient, and since the load is pushed out while being discharged, the time required to complete the discharge is extremely short, and the machine returns to the waiting position after discharging the load. When turning, the direction of the turning coincides with the traveling direction of the following load, so the following load does not get in the way.

Therefore, when loads are continuously conveyed on the conveyor, the distance between the loads can be made as close as possible. 2 Conventionally,
If a swing arm that pivots around the upstream side of the conveyor is used, and if you try to place receivers in positions facing each other across the conveyor, the swing arms will block each other's receivers. Therefore, if we adopt a 挌Π arm that rotates using the upstream side of the conveyor as a fulcrum,
There has been a problem in that the number of receivers can only be arranged alternately across the conveyor, and as a result, the number of receivers that can be provided on a conveyor of a certain length is limited, but according to the present invention, the number of receivers can only be arranged alternately across the conveyor. By making the rotating arms facing each other alternately appear and retract, it is possible to set up receivers at opposite positions across the conveyor, and as a result, there are receivers on both sides of the conveyor over the entire length. The population can be arranged densely, and many sorting destinations can be connected to a single conveyor.

As a result of 32.3, it is possible to provide a sorting device that connects a large number of sorting destinations to a single conveyor, allows the goods to flow continuously and densely onto the conveyor, and has extremely high sorting efficiency. can.

[Brief explanation of the drawing]

The drawings are for explaining the device of the present invention, and FIG. 1 is a plan view showing an example of a conventional sorting device, FIG. 2 is a perspective view of the same, and FIG. 3 is a view taken along arrow A-A in FIG. A sectional view, FIG. 4 is a plan view showing another example of a conventional sorting device, and FIG. 5 is a perspective view of the same.
6 is a side sectional view taken from the arrow B-B in FIG. 4, FIG. 7 is a plan view showing an embodiment of the sorting device according to the present invention, FIG. Enlarged side sectional view taken along the line C-C in the figure, No. 10
The figure is a partially cutaway side view taken in the direction of arrow D in FIG.

Claims (1)

[Scope of Claims] 1. A belt conveyor for transporting loads, at least a pair of load receiving ports arranged symmetrically on both sides of the belt conveyor with the belt conveyor in between, and a connection to each of these load receiving ports. and a guide path leading to a predetermined sorting destination, the sorting device selectively discharges the cargo conveyed on the belt conveyor to any one of the cargo receiving ports, wherein each of the cargo receiving ports In particular, on the upstream side of the belt conveyor, there are rotating shafts erected perpendicularly to the conveying surface of the belt conveyor, and one end of each of the rotating shafts is integrally connected to the upper ends of the rotating shafts, and a rotating arm oriented in a direction perpendicular to each, a bearing member rotatably supporting each of the rotating shafts, and a pair of these bearing members arranged symmetrically across the belt conveyor. elevating means for alternately elevating and lowering the bearing members; a rotational drive source for rotating each of the rotating shafts; and a groove or hole provided in each of the cargo receiving openings in which the rotating arm can be buried. A sorting device comprising: 2. The elevating means is constituted by a seesaw rod whose both ends are connected to each of the bearing members via a cam joint and rotates about the intermediate portion as a fulcrum, and a seesaw drive means for moving the seesaw rod. A sorting device according to claim 1, characterized in that: