Conveying system

Abstract

Reduce the processing time required for data transfer. [Solution] The sorting mechanism (101) of the present disclosure is a sorting mechanism (101) for transferring articles at a sorting position, and comprises a transport cart (10) equipped with a platform (11) for transporting articles and for placing articles on, the platform (11) includes a transfer conveyor (12) for transferring articles to the sorting platform at the sorting position, and comprises a drive mechanism (20) for driving the transfer conveyor (12) from a predetermined distance L before the transport cart (10) reaches the sorting position, and a motor (26) for operating the drive mechanism (20) is located at the sorting position.

Description

Technical Field

[0001] The present invention relates to a conveying system that conveys articles and sorts them at a sorting position.

Background Art

[0002] There are known sorting devices that automatically sort articles (Patent Documents 1 to 3). In the sorting device, a transport cart moves on a rail to transport articles, stops at a sorting position, and transfers the articles to a placement table or the like that leads to a sorting destination. Then, after the transfer is completed, the transport cart moves again. Therefore, if the stop time at the sorting position (transfer position) becomes long, it will take time for transportation and sorting accordingly.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the sorting device, at the sorting position, it is necessary to stop the transport cart and transfer the articles from the transport cart to a placement table or the like that leads to the sorting destination. If the transfer operation takes time, it is necessary to stop the transport cart accordingly. Since a plurality of transport carts move on the same rail at predetermined intervals, when one transport cart is stopped, other transport carts are also stopped or decelerated. If the stop time of a certain transport cart becomes long, it will also affect the transportation of other transport carts, and it will take time for the overall transportation and sorting operations.

[0005] The present invention aims to realize a sorting device that reduces the processing time required for transfer. [Means for solving the problem]

[0006] To solve the above problems, a transport system according to one aspect of the present disclosure is a transport system for transferring articles at a sorting location, comprising a transport cart equipped with a platform for transporting the articles and for placing the articles on, wherein the platform includes a transfer conveyor for transferring the articles to the sorting platform at the sorting location, and comprises a drive mechanism for driving the transfer conveyor from a predetermined distance before the transport cart reaches the sorting location, and a power unit for operating the drive mechanism is located at the sorting location. [Effects of the Invention]

[0007] According to one aspect of the present invention, the transfer conveyor is driven from a predetermined distance before the transport trolley reaches the sorting position, so that the transfer of goods can begin before reaching the sorting position, thereby reducing the time required for transfer. [Brief explanation of the drawing]

[0008] [Figure 1] This is a top view showing the configuration of a transport system including a sorting mechanism according to one embodiment of the present invention. [Figure 2] This is a perspective view of the transport cart and drive mechanism of the sorting mechanism. [Figure 3] This is a functional block diagram showing the control unit that controls the speed of the transport cart and rotating belt included in the sorting mechanism. [Figure 4] This is a top view of the transport trolley and drive mechanism of the sorting mechanism. [Figure 5] This is a top view of the transport trolley and drive mechanism of a sorting mechanism, showing one state during operation. [Figure 6] This is a top view of the transport trolley and drive mechanism of a sorting mechanism, showing one state during operation. [Figure 7]This is a top view of the transport trolley and drive mechanism of a sorting mechanism, showing one state during operation. [Figure 8] This is a top view of a transport trolley and drive mechanism included in a sorting mechanism according to another embodiment.

[0009] In Figures 1 and 4-8, when an arrow is shown superimposed on or next to a component, the arrow represents the direction of movement, travel, or rotation of that component. Furthermore, when the symbols v_car, v_con, or v_belt are shown next to the arrow, these symbols represent the speed of movement or travel of the component, i.e., the absolute value of the numerical part of the component's speed of movement or travel. Therefore, the positive direction of the component's speed of movement or travel does not necessarily coincide with the direction of the arrow in each figure. [Modes for carrying out the invention]

[0010] [Embodiment 1] One embodiment of the present invention will be described in detail below.

[0011] (Configuration of the transport system 100) First, an overview of the transport system 100 according to this embodiment will be described. The transport system 100 transports the goods OB and sorts the goods OB at the sorting position P using the sorting mechanism 101.

[0012] Figure 1 is a top view showing the configuration of a transport system 100 according to one embodiment of the present invention. As shown in Figure 1, the transport system 100 comprises a rail 1, a plurality of transport trolleys 10, a supply conveyor 3, and a discharge conveyor 4. Hereafter, the supply conveyor 3 and the discharge conveyor 4 will be collectively referred to as the sorting table D. The transport trolleys 10 move along the rail 1 at a constant speed in a counterclockwise direction with intervals between them in a plan view in Figure 1. The rail 1 forms the travel path of the transport trolleys 10. As an example, the rail 1 is configured in an oval shape with an inner rail and an outer rail. The inner rail and the outer rail are arranged parallel to each other with a constant interval between them.

[0013] The rail 1 has straight portions 1a and 1b and a pair of curved portions 1c. The straight portions 1a and 1b have the same length and are arranged in parallel with a predetermined interval therebetween. The pair of curved portions 1c each form an arc of a semicircle connecting the ends of the straight portions 1a and 1b. The curved portion 1c constitutes a curved path along which the carrier cart 10 travels in a curve on the rail 1. Note that the rail 1 may have a shape other than an oval shape. For example, the rail 1 may have a shape similar to a triangle having three straight portions and connecting two of the straight portions with a curved portion.

[0014] The carrier cart 10 places the article OB and travels on the rail 1. That is, the carrier cart 10 moves in the horizontal direction. The carrier cart 10 has a traveling section (not shown), a mounting table 11, and a transfer conveyor 12. The traveling section travels on the rail 1. The mounting table 11 is a mounting table for placing the article OB. The transfer conveyor 12 also serves as the mounting table 11 and transfers the article OB during transfer.

[0015] The supply conveyor 3 is a conveyor that conveys the article OB from the supply source of the article OB and transfers it to the carrier cart 10 on the rail 1. The discharge conveyor 4 is a conveyor that receives the article OB conveyed by the carrier cart 10 on the rail 1 and conveys it to the supply destination of the article OB. Each end of the supply conveyor 3 and the discharge conveyor 4 is arranged to be close to the transfer conveyor 12 during transfer. The position where the supply conveyor 3 and the discharge conveyor 4 are arranged becomes the sorting position P.

[0016] In the present embodiment, the plane on which the carrier cart 10 travels is defined as the XY plane, the direction parallel to the straight portions 1a and 1b is defined as the X direction, the direction perpendicular to the straight portions 1a and 1b is defined as the Y direction, and the direction perpendicular to the XY plane is defined as the Z direction.

[0017] (Configuration of the sorting mechanism 101) The sorting mechanism 101 sorts the article OB at the sorting position P. FIG. 2 is a perspective view showing an overview of the sorting mechanism 101. FIG. 3 is a functional block diagram showing a control unit that controls the speeds of the transport cart 10 and the rotating belt 24 included in the sorting mechanism 101. As shown in FIG. 2, the sorting mechanism 101 includes a transport cart 10 and a drive mechanism 20.

[0018] (Configuration of the transport cart 10) The transport cart 10 is a cart that transports the article OB. The transport cart 10 includes a mounting table 11 and a transfer conveyor 12. The mounting table 11 is a substantially flat table. The transfer conveyor 12 is a belt conveyor that transports the article OB in the Y direction. The transfer conveyor 12 is arranged such that the upper and lower sections face each other vertically in the Y direction. The article OB is placed on the upper section (hereinafter referred to as the "article-side belt") of the upper and lower sections and serves as the mounting table 11.

[0019] Also, a fall-preventing member may be provided at a position on the opposite side of the sorting table D of the mounting table 11 to prevent the article OB from falling from the mounting table 11. Thereby, it is possible to prevent the article OB from falling to the side opposite to the sorting table D.

[0020] As shown in FIG. 3, the moving speed of the transport cart 10 is controlled by a transport cart speed control unit 30. For example, the transport cart speed control unit 30 may move the transport cart 10 at 60 m / min and decelerate it at 0.5G (G is the gravitational acceleration) from a predetermined distance L before the sorting position P.

[0021] (Configuration of the drive mechanism 20) The drive mechanism 20 includes a first gear 21, a second gear 22, a roller 23, a rotating belt 24, an adjustment mechanism 25, and a motor (power unit) 26.

[0022] The first gear 21 is joined to the rotating shaft (not shown) of the transfer conveyor 12 at the end on the moving direction side (front side) of the transport cart 10. When the first gear 21 rotates, the rotating shaft of the transfer conveyor 12 rotates and the transfer conveyor 12 operates.

[0023] The second gear 22 meshes with the first gear 21 with its rotational plane perpendicular to the rotational plane of the first gear 21. The axis of rotation of the second gear 22 is vertical. The rotation of the second gear 22 causes the first gear 21 to rotate.

[0024] The roller 23 is formed integrally with the second gear 22 such that the axis of rotation of the roller 23 coincides with the axis of rotation of the second gear 22. Therefore, the axis of rotation of the roller 23 is also vertical.

[0025] The first gear 21, the second gear 22, and the roller 23 are located at the end of the transport trolley 10 on the side facing the direction of movement. Therefore, the first gear 21, the second gear 22, and the roller 23 are collectively referred to as the drive mechanism 20A (first transmission mechanism).

[0026] The rotating belt 24, adjustment mechanism 25, and motor 26 are installed at sorting position P. Therefore, the rotating belt 24 and adjustment mechanism 25 together are also called the drive mechanism 20B. The rotating belt 24 is a belt conveyor and contacts the roller 23 to rotate the roller 23. Therefore, the rotating belt 24 can be called the second transmission mechanism. The rotating belt 24 is operated by the motor 26 and its speed is controlled by the rotating belt speed control unit 40. The rotating belt 24 is positioned such that the direction of travel of the belt is perpendicular to the rotation axis of the roller 23, and the surface of the belt of the rotating belt 24 is parallel to the rotation axis of the roller 23.

[0027] The adjustment mechanism 25 is mechanically connected to the rotating belt 24 and, when the transport cart 10 reaches a predetermined position, brings the rotating belt 24 into contact with the rollers 23 located on the transport cart 10. More specifically, the adjustment mechanism 25 adjusts the position of the rotating belt 24 and brings the rotating belt 24 into contact with the rollers 23 when the transport cart 10 reaches a predetermined distance L before the sorting position P. The arrival of the transport cart 10 at a predetermined distance L before the sorting position P may be determined, for example, by receiving a signal from a sensor provided at the predetermined position P. Alternatively, it may be determined by reaching a preset time, or the position of the transport cart 10 may be derived based on speed information output from the transport cart speed control unit 30.

[0028] As a result, the drive mechanism 20 will perform the following operations: The rotating belt 24 will operate, causing the roller 23 to rotate. The rotation of the roller 23 will cause the second gear 22 to rotate. The rotation of the second gear 22 will cause the first gear 21 to rotate. The rotation of the first gear 21 will cause the drive shaft of the transfer conveyor 12 to rotate, and the transfer conveyor 12 will operate. Thus, the transfer conveyor 12 can be operated by operating the rotating belt 24.

[0029] (Operation of sorting mechanism 101) Next, the operation of the sorting mechanism 101 in the transport system 100 will be described with reference to Figures 4 to 7. Figure 4 is a top view of the sorting mechanism 101. Figures 5 to 7 are top views of the sorting mechanism 101 showing the positional relationship between the transport trolley 10 and the drive mechanism 20B during operation.

[0030] As shown in Figure 4, consider the case where the transport cart 10 is moving in the X direction. Let the speed of the transport cart 10 at this time be v_car(t). Let the speed of the item-side belt of the transfer conveyor 12, which operates in the Y direction, be v_con(t). Let the speed of the contact-side belt of the rotating belt 24, which is the side that contacts the roller 23, be v_belt(t). Hereafter, the speed of the item-side belt of the transfer conveyor 12 will also be simply referred to as the speed of the transfer conveyor 12. Similarly, the speed of the contact-side belt of the rotating belt 24, which is the side that contacts the roller 23, will also be simply referred to as the speed of the rotating belt 24.

[0031] As shown in Figure 5, when the transport cart 10 reaches a predetermined distance L0 in front of the sorting position P, the adjustment mechanism 25 adjusts the position of the rotating belt 24 and brings the rotating belt 24 into contact with the roller 23. At this time, the rotating belt speed control unit 40 adjusts the speed v_belt(t) of the rotating belt 24 to match the speed v_car(t) of the transport cart 10 and operates the rotating belt 24. As a result, the roller 23 does not rotate even when the transport cart 10 moves. This prevents the transfer conveyor 12 from suddenly starting to operate when the rotating belt 24 and the roller 23 come into contact.

[0032] Thereafter, as shown in FIG. 6, the carrier speed control unit 30 decelerates the carrier 10 so that the carrier 10 can stop at the sorting position P. On the other hand, the rotating belt 24 operates at a constant speed. FIG. 6 shows a state where the carrier 10 is at a position at a distance L1 (<L0) from the sorting position P. By decelerating the carrier 10, a difference is created between the speed v_car(t) of the carrier 10 and the speed v_belt(t) of the rotating belt 24, causing the roller 23 to rotate. As a result, the transfer conveyor 12 operates at a speed v_con(t). The speed v_con(t) is a speed proportional to the speed v_belt(t) of the rotating belt 24 - the speed v_car(t) of the carrier 10. The proportionality coefficient is determined by the ratio of the diameter of the roller 23 to the diameter of the rotating shaft of the transfer conveyor 12 (hereinafter referred to as the "diameter ratio"), and the gear ratio between the first gear 21 and the second gear 22. If the diameter ratio is 1:1 and the gear ratio is 1:1, then the speed v_belt(t) of the rotating belt 24 - the speed v_car(t) of the carrier 10 directly becomes the speed v_con(t) of the transfer conveyor 12.

[0033] Note that L0 may be equal to L1. That is, the carrier speed control unit 30 may start decelerating the carrier 10 from the time when the carrier 10 is at a position at a distance L0 from the sorting position P. When the carrier 10 is decelerating toward the sorting position P, since the rotating belt 24 operates at a constant speed, this difference (v_car(t) - v_belt(t)) causes the roller 23 to rotate. The rotation of the roller 23 causes the transfer conveyor 12 to operate in the direction of transferring the article OB to the sorting table D. Therefore, the transfer conveyor 12 starts operating at a low speed before a predetermined distance L1 from the sorting position P and gradually increases its speed as it approaches the sorting position P. As a result, the article OB can be smoothly transferred without applying a sudden acceleration to the article OB. Note that the rotating belt 24 may operate at a constant speed in a predetermined section. For example, the rotating belt 24 may start decelerating at the timing when the transfer conveyor 12 is made to operate at a constant speed.

[0034] Subsequently, as shown in Figure 7, when the transport trolley 10 reaches the sorting position P, the transport trolley speed control unit 30 stops the transport trolley 10. As a result, when the diameter ratio is 1:1 and the gear ratio is 1:1, the speed v_con(t) of the transfer conveyor 12 operates at the same speed as the speed v_belt(t) of the rotating belt 24. After the items OB are transferred from the transfer conveyor 12 to the sorting table D, the rotating belt speed control unit 40 can stop the transfer conveyor 12 by stopping the rotating belt 24.

[0035] For example, the rotating belt speed control unit 40 may decelerate the rotating belt 24, which is operating at a constant speed, by 0.3G and then stop it.

[0036] (summary) As described above, the transport system 100 according to this embodiment includes a sorting mechanism 101. The sorting mechanism 101 includes a transport cart 10 equipped with a platform 11 for transporting goods OB and for placing the goods OB on. The platform 11 includes a transfer conveyor 12 for transferring the goods OB to the sorting platform D at the sorting position P. The sorting mechanism 101 also includes a drive mechanism 20 that drives the transfer conveyor 12 from a predetermined distance L before the transport cart 10 reaches the sorting position P. A motor 26 that operates the drive mechanism 20 is located at the sorting position P. As a result, the transfer conveyor 12 is driven from a predetermined distance L before the transport cart 10 reaches the sorting position P, so the transfer of goods OB can be started before reaching the sorting position P, and the time required for transfer can be shortened.

[0037] The sorting mechanism 101 includes a drive mechanism 20 which comprises a first gear 21 that drives the transfer conveyor 12, a second gear 22 that meshes with the first gear 21, a roller 23 that rotates integrally with the second gear 22, a rotating belt 24 that contacts the roller 23 and rotates the roller 23, and an adjustment mechanism 25 that adjusts the relative position between the rotating belt 24 and the roller 23. The first gear 21, the second gear 22, and the roller 23 are provided on the transport trolley 10 and constitute a first transmission mechanism that transmits power transmitted from the rotating belt 24 to the transfer conveyor 12. The rotating belt 24 constitutes a second transmission mechanism that transmits power from the motor 26 to the first transmission mechanism. As a result, when the transport trolley 10 reaches a predetermined distance L before the sorting position P, the rotating belt 24 can be brought into contact with the roller 23, causing the second gear 22 to rotate, thereby rotating the first gear 21 and driving the transfer conveyor 12. Therefore, the drive of the transfer conveyor 12 can be controlled from the moment the transport trolley 10 reaches a predetermined distance L before the sorting position P.

[0038] [Variation] In the above description, the drive mechanism 20 was provided as an example in which it is located at the end of the transport trolley 10 on the side facing the direction of movement, but the present invention is not limited to this. As shown in the sorting mechanism 101' of Figure 1, the drive mechanism 20 may be located at the end of the transport trolley 10 on the opposite side (rear side) from the direction of movement.

[0039] Figure 8 is a top view of the sorting mechanism 101' according to this modified example. As shown in Figure 8, even when the drive mechanism 20 is located at the end opposite to the direction of movement of the transport cart 10, when the transport cart 10 reaches a predetermined distance L before the sorting position P, the relative position of the rotating belt 24 and the roller 23 is adjusted to bring the rotating belt 24 into contact with the roller 23 on the contact side. At this time, the rotating belt speed control unit 40 adjusts the speed v_belt(t) of the rotating belt 24 to match the speed v_car(t) of the transport cart 10 and operates the rotating belt 24. As a result, even if the transport cart 10 moves, the roller 23 does not rotate, so it is possible to prevent the transfer conveyor 12 from suddenly starting to operate when the rotating belt 24 and the roller 23 come into contact. Therefore, the sorting mechanism 101' can achieve the same effects as the sorting mechanism 101 described above.

[0040] Furthermore, if the drive mechanism 20 is located on the opposite side of the direction of movement of the transport cart 10, the rotation direction of the first gear 21 for operating the transfer conveyor 12 will be opposite to that of the sorting mechanism 101. Therefore, in order to operate the transfer conveyor 12 according to this modified example, the speed v_belt(t) of the rotating belt 24 must be less than the speed v_car(t) of the transport cart 10. Accordingly, the rotating belt speed control unit 40 according to this modified example decelerates the rotating belt 24 after contact between the rotating belt 24 and the roller 23 so that the speed v_belt(t) of the rotating belt 24 is less than the speed v_car(t) of the transport cart 10.

[0041] Furthermore, the rotating belt speed control unit 40 in this modified example may decelerate the rotating belt 24 until the speed of the rotating belt 24, v_belt(t), takes a negative value. That is, as shown in Figure 8, in the sorting mechanism 101', the direction of travel of the rotating belt 24 may be opposite to that of the sorting mechanism 101, i.e., opposite to the direction of movement of the transport cart 10. This allows the transfer conveyor 12 to operate even if the transport cart 10 stops at the sorting position P, by generating the difference (v_car(t)-v_belt(t)) between the speed of the transport cart 10 and the speed of the rotating belt 24.

[0042] In other words, in sorting mechanism 101, the drive mechanism 20 is located at the end of the transport trolley 10 on the side facing the direction of movement, while in sorting mechanism 101', the drive mechanism 20 is located at the end of the transport trolley 10 on the opposite side of the direction of movement. Furthermore, in sorting mechanism 101 and sorting mechanism 101', the direction of rotation of the rollers 23, which is determined by the difference between the speed of the transport trolley 10 and the speed of the rotating belt 24, is reversed. This ensures that the direction of travel of the transfer conveyor 12 is always towards the sorting table D.

[0043] 〔summary〕 A transport system according to Embodiment 1 of the present disclosure is a transport system for transferring articles at a sorting location, comprising a transport cart equipped with a platform for transporting the articles and for placing the articles, wherein the platform includes a transfer conveyor for transferring the articles to the sorting platform at the sorting location, and comprises a drive mechanism for driving the transfer conveyor from a predetermined distance before the transport cart reaches the sorting location, and a power unit for operating the drive mechanism is located at the sorting location.

[0044] A transport system according to aspect 2 of the present disclosure, in aspect 1, the drive mechanism includes a first transmission mechanism provided on the transport trolley, a second transmission mechanism provided at the sorting position, and an adjustment mechanism for adjusting the relative position between the second transmission mechanism and at least a part of the first transmission mechanism, wherein the second transmission mechanism transmits power from the power unit to the first transmission mechanism, the first transmission mechanism transmits the power transmitted from the second transmission mechanism to the transfer conveyor, and the adjustment mechanism adjusts the relative position to a position where the power can be transmitted from the second transmission mechanism to the first transmission mechanism when the transport trolley reaches a predetermined distance in front of the sorting position.

[0045] A transport system according to aspect 3 of the present disclosure, in aspect 2, wherein the first transmission mechanism includes a first gear for driving the transfer conveyor, a second gear that meshes with the first gear, and a roller that rotates integrally with the second gear, and the second transmission mechanism includes a rotating belt that contacts the roller and rotates the roller.

[0046] In the transport system according to embodiment 4 of the present disclosure, in embodiment 3, the transport trolley moves horizontally, the axis of rotation of the roller is vertical, the direction of travel of the contact belt on the side of the rotating belt that contacts the roller is the same as the direction of movement of the transport trolley, and when the transport trolley reaches the predetermined distance ahead, the contact belt and the roller come into contact, and the contact belt moves at the same speed as the speed of movement of the transport trolley.

[0047] In the transport system according to aspect 5 of the present disclosure, in aspect 3, the transport trolley begins to decelerate a predetermined distance before the sorting position and stops at the sorting position, the rotating belt operates at a constant speed for a predetermined section from the moment it comes into contact with the roller, and the rotation of the roller due to the difference between the forward speed of the contacting belt and the moving speed of the transport trolley causes the transfer conveyor to move in the direction of transferring the articles to the sorting table.

[0048] In the transport system according to embodiment 6 of the present disclosure, the predetermined section in embodiment 5 is the section from the time the rotating belt comes into contact with the roller until the transport trolley stops at the sorting position.

[0049] In any of embodiments 1 to 6, the transport system according to embodiment 7 of the present disclosure is provided with a fall prevention member at a position opposite to the sorting table of the aforementioned stand, which prevents the articles from falling from the aforementioned stand.

[0050] [Explanation of symbols] 10 Transport carts 11. Mounting platform 12 Transfer conveyor 20 Drive mechanism 21 First gear 22 Second Spectrum 23 Laura 24 Rotating Belt 25 Adjustment mechanism 26. Motor (power unit) 30 Transport Cart Speed ​​Control Unit 40. Rotational belt speed control unit 100 Conveyor Systems 101, 101' Sorting mechanism

Claims

1. A transport system for transferring goods at a sorting location, A transport trolley is provided for transporting the aforementioned articles and for having a platform on which to place the aforementioned articles, The aforementioned loading platform includes a transfer conveyor that transfers the items to the sorting platform at the sorting position. The transport trolley is equipped with a drive mechanism that drives the transfer conveyor from a predetermined distance before it reaches the sorting position. The power unit that operates the aforementioned drive mechanism is located at the sorting position and is part of a transport system.

2. The aforementioned drive mechanism is The first transmission mechanism provided on the transport trolley, The sorting position includes a second transmission mechanism and an adjustment mechanism for adjusting the relative position between the second transmission mechanism and at least a part of the first transmission mechanism, The second transmission mechanism transmits power from the power unit to the first transmission mechanism. The first transmission mechanism transmits the power transmitted from the second transmission mechanism to the transfer conveyor. The adjustment mechanism is activated when the transport trolley reaches the predetermined distance before the sorting position. The transport system according to claim 1, wherein the relative position is adjusted to a position in which the power can be transmitted from the second transmission mechanism to the first transmission mechanism.

3. The first transmission mechanism includes a first gear for driving the transfer conveyor, a second gear that meshes with the first gear, and a roller that rotates integrally with the second gear. The conveying system according to claim 2, wherein the second transmission mechanism includes a rotating belt that contacts the roller and rotates the roller.

4. The transport trolley moves horizontally, and the axis of rotation of the rollers is vertical. The direction of travel of the contact-side belt of the rotating belt that contacts the roller is the same as the direction of movement of the transport trolley. The transport system according to claim 3, wherein when the transport trolley reaches the predetermined distance in front, the contact belt and the roller come into contact, and the contact belt moves at the same speed as the transport trolley.

5. The transport trolley begins to decelerate a predetermined distance before the sorting position and stops at the sorting position. The rotating belt operates at a constant speed for a predetermined distance from the moment it comes into contact with the roller. The transport system according to claim 4, wherein the rotation of the rollers due to the difference between the forward speed of the contact belt and the moving speed of the transport trolley causes the transfer conveyor to move in the direction of transferring the articles to the sorting table.

6. The transport system according to claim 5, wherein the predetermined section is the section from the time the rotating belt comes into contact with the roller until the transport trolley stops at the sorting position.

7. The transport system according to claim 1, wherein a fall prevention member is provided at a position on the opposite side of the loading platform from the sorting platform to prevent the articles from falling from the loading platform.

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