Conveyance apparatus

Abstract

To provide a conveyance apparatus capable of moving a set of devices at once.SOLUTION: A conveyance apparatus 1 comprises: a mounting truck 10 having a mounting surface 12 on which an additional conveyance device having object conveyance means on the upper surface and moving means on the lower part can be mounted; and an expansion conveyor 40 which is disposable on the upper part of the mounting truck 10 and has a connection part 41 connectable to the end of the object conveyance means and which can form a conveyance surface with the additional conveyance device by being disposed on the upper surface of the mounting truck 10 and having the connection part 41 connected to the end of the object conveyance means in a state where the additional conveyance device moves from a position on the mounting surface 12 to a position outside the mounting surface 12.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a transport device. [Background technology]

[0002] A conveyor for transporting cargo may be used to load or unload cargo onto or from the bed of a truck, a container, etc. Patent Document 1 discloses a conveyor for transporting cargo. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-142993 Summary of the Invention [Problem to be solved by the invention]

[0004] When using a conveyor to load or unload cargo (hereinafter referred to as "baggage transport work"), the conveyor must be moved from its storage location to the transport work area, which is the front of the truck bed or container. Depending on the situation, other transport devices may be required to smoothly carry out the work. In such cases, both the conveyor and the other transport devices must be moved from their storage locations to the transport work area, which places a heavy burden on workers and reduces efficiency. Conventional conveyors, such as those disclosed in Patent Document 1, do not take this issue into consideration.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a conveying device that can move an entire set of equipment at once. [Means for solving the problem]

[0006] The transport device of the present disclosure comprises a first carriage having a mounting surface on which an attached transport device having an object transport means on its upper surface and a moving means on its lower surface can be mounted, and a first conveyor that can be placed on top of the first carriage and has a connecting part that can be connected to an end of the object transport means, and when the attached transport device moves from a position on the mounting surface to a position outside the mounting surface, is placed on top of the first carriage and can form a transport surface together with the attached transport device by connecting the end of the object transport means to the connecting part. [Effects of the Invention]

[0007] According to the present disclosure, a transport device capable of moving a complete set of equipment at once can be provided. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of the appearance of a transport device according to a first embodiment. [Figure 2] FIG. 10 is a perspective view of the external appearance of the transport device when the loading carriage is loaded with a carriage and an extendable conveyor that are auxiliary transport devices. [Figure 3] FIG. 10 is an external perspective view of the expansion conveyor arranged on the top of the loading carriage. [Figure 4] FIG. 2 is a perspective view of the exterior of a carriage that is an auxiliary transport device. [Figure 5] FIG. 2 is an external perspective view of the telescopic conveyor. [Figure 6] 6A to 6C are diagrams showing the switching operation of the expansion conveyor. [Figure 7] 7A and 7B are diagrams showing the connection between the telescopic conveyor and the expansion conveyor. [Figure 8] FIG. 10 is a diagram showing the configuration of a slope whose length is adjustable. [Figure 9] FIG. 10 is a diagram showing the state when the dolly, which is the auxiliary transport device, is carried deep into the luggage compartment of the truck. [Figure 10A] 1A and 1B are diagrams illustrating unloading operations when the conveying device according to the first embodiment is used. [Figure 10B] FIG. 10B is a diagram showing the unloading operation following FIG. 10A. [Figure 10C] FIG. 10C shows the unloading operation following FIG. 10B. [Figure 10D] FIG. 10B shows the unloading operation following FIG. 10C. [Figure 10E] FIG. 10B shows the unloading operation following FIG. 10D. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0010] Embodiment 1 A conveying device 1 according to a first embodiment will be described with reference to Figures 1 to 10. Note that an arrow C shown in each figure indicates the conveying direction of a load, which is an object or a conveyed item.

[0011] FIG. 1 is an external perspective view of a conveying device 1 according to the first embodiment. As shown in FIG. 1, the conveying device 1 according to the first embodiment includes a loading cart 10 and an expansion conveyor 40. Hereinafter, the cargo conveying work using the conveying device 1 is assumed to be used when loading and unloading cargo, which is an object to be conveyed, from the trunk of a truck, a container, or the like. Note that the cargo conveying work using the conveying device 1 may also be used when loading cargo into the trunk of a truck, a container, or the like.

[0012] The loading cart 10 is a first cart. As shown in FIG. 1 , the loading cart 10 has a plurality of wheels 11. The plurality of wheels 11 are supported at the bottom of the loading cart 10 so as to be rotatable around horizontal and vertical axes. The loading cart 10 has the wheels 11, which allows it to move in any direction within a horizontal plane. For example, the loading cart 10 can move integrally with the extension conveyor 40 between a storage location of the transport device 1 and the front of a truck compartment or a container, which is a cargo transport work area. At this time, the transport device 1 is stored in the storage location with the extension conveyor 40 attached. Note that the horizontal axis is an axis extending in the horizontal direction. The vertical axis is an axis extending in the vertical direction. The horizontal plane is a surface extending in the horizontal direction.

[0013] FIG. 2 is an external perspective view of the conveying device 1 when the loading cart 10 is equipped with the additional conveying devices, that is, the cart 20 and the extendable conveyor 30. As shown in FIG. 2, the loading cart 10 can be equipped with the conveying cart 20 and the extendable conveyor 30. The cart 20 and the extendable conveyor 30 are examples of the additional conveying devices. When the loading cart 10 is equipped with the cart 20 and the extendable conveyor 30, the loading cart 10 is equipped with the cart 20 and the extendable conveyor 30 in that order when viewed from the side that will be the cargo compartment or the container side of the truck during luggage transport operations. Furthermore, when an additional conveying device is equipped on the loading cart 10, the loading cart 10 can move integrally with the additional conveying device and the extension conveyor 40. In this case, when an additional conveying device is equipped on the loading cart 10, the loading cart 10 is equipped with the extension conveyor 40 and is stored in a storage location with the additional conveying device mounted on the loading cart 10.

[0014] Here, the loading cart 10 being "capable of carrying an accessory transport device (in the example of the first embodiment, the cart 20 and the extendable conveyor 30)" means that the loading cart 10 is required to have a structure capable of carrying an accessory transport device, and the loading cart 10 does not have to be equipped with an accessory transport device. In other words, the transport device 1 is required to be equipped with at least the loading cart 10 and the extendable conveyor 40. Furthermore, the type and number of the auxiliary transport device on which the loading carriage 10 can be mounted is not limited as long as it has a structure with an object transport means on the upper surface and a moving means on the lower surface. When the accessory transport device is a dolly 20 or an extendable conveyor 30 as in this embodiment 1, the loading dolly 10 may be equipped with neither the dolly 20 nor the extendable conveyor 30, or may be equipped with only one or both of the dolly 20 and the extendable conveyor 30. In addition, the loading dolly 10 may be equipped with any number of dollies 20 or extendable conveyors 30. In this first embodiment, the accessory transport devices that can be mounted on the mounting carriage 10 are at least one carriage 20 and one extendable conveyor 30.

[0015] FIG. 3 is an external perspective view of the extension conveyor 40 disposed on top of the mounting cart 10. As shown in FIGS. 1 and 3, the mounting cart 10 has a mounting surface 12. The mounting surface 12 is a surface on which an accessory transport device can be mounted, and in this case, is a surface on which the carriage 20 and the extendable conveyor 30 are mounted. The mounting surface 12 also serves as a running surface for the carriage 20 and the extendable conveyor 30 to move on the mounting cart 10. When the mounting surface 12 also serves as a running surface, for example, the mounting surface 12 is a pair of surfaces extending in the longitudinal direction of the mounting cart 10 and is disposed on both sides in the width direction of the mounting cart 10. In this case, the mounting surface 12 is disposed above the wheels 11. The carriage 20 and the extendable conveyor 30 can move between a position on the mounting surface 12 and a position outside the mounting surface 12. The longitudinal direction of the loading cart 10 refers to the direction in which the attached transport device travels on the loading cart 10. The loading surface 12 also serves as a running surface, but it does not have to be shared with the running surface. When the loading surface 12 and the running surface are provided separately, the attached transport device is moved or remounted from the loading surface 12 to the running surface.

[0016] The extension conveyor 40 is an example of a first conveyor. When not transporting luggage, the extension conveyor 40 is disposed below the loading cart 10. For example, as shown in FIG. 1, the extension conveyor 40 is disposed on the side of the lower part of the loading cart 10 so that the transport surface, which will be described later, is approximately vertical. Alternatively, as shown in FIG. 6B, the extension conveyor 40 is disposed on the bottom of the lower part of the loading cart 10 so that the transport surface is horizontal. Furthermore, when transporting luggage, the extension conveyor 40 is disposed above the loading cart 10.

[0017] For example, the extension conveyor 40 is a free roller conveyor. In this case, the extension conveyor 40 has a plurality of free rollers, which form the conveying surface of the extension conveyor 40. That is, the free rollers of the extension conveyor 40 form the conveying surface when placed above the loading carriage 10 as shown in FIG. 3. Furthermore, when the extension conveyor 40 is used together with the carriage 20 and the extendable conveyor 30 in a luggage conveying operation, the free rollers of the extension conveyor 40 form a single conveying surface together with the carriage 20 and the extendable conveyor 30. The extension conveyor 40 is used to extend the conveying surface in the conveying direction when the length of the conveying surface formed by the carriage 20 and the extendable conveyor 30 in the conveying direction is insufficient.

[0018] 7A and 7B are diagrams showing the connection between the telescopic conveyor 30 and the expansion conveyor 40. As shown in FIGS. 7A and 7B, the extension conveyor 40 has a connecting portion 41. The connecting portion 41 is provided at one end of the extension conveyor 40. The connecting portion 41 is used when the extension conveyor 40 is disposed above the loading cart 10 as shown in FIG. 3 and is used together with the cart 20 and the extendable conveyor 30. When at least the extendable conveyor 30 of the cart 20 and the extendable conveyor 30 is mounted on the loading cart 10 and the extendable conveyor 30 is used together with the extension conveyor 40 for luggage transport work, the connecting portion 41 can be connected to the connecting portion 34 of the extendable conveyor 30, as shown in FIGS. 7A and 7B. The connecting portion 34 will be described in detail later. When only the cart 20 of the cart 20 and the extendable conveyor 30 is mounted on the loading cart 10 and the cart 20 is used together with the extension conveyor 40 for luggage transport work, the connecting portion 41 can be connected to the end of the cart 20.

[0019] Assume that the dolly 20 and the extendable conveyor 30 as accessory conveying devices are mounted on the mounting surface 12 of the loading dolly 10 and moved from a storage location to a conveying work site. In this case, when starting a baggage conveying operation, the dolly 20 and the extendable conveyor 30 are moved from their positions on the mounting surface 12 of the loading dolly 10 to their positions outside the mounting surface 12. Then, as described above, in a state in which the dolly 20 and the extendable conveyor 30 have moved from their positions on the mounting surface 12 of the loading dolly 10 to their positions outside the mounting surface 12, the extension conveyor 40 is disposed above the loading dolly 10, and the connecting portion 41 is connected to the end of the extendable conveyor 30. As a result, when the extension conveyor 40 forms a conveying surface together with the dolly 20 and the extendable conveyor 30, the connection between the two conveyors can be maintained during the baggage conveying operation, and the baggage can be maintained in a state suitable for conveying. Note that the state in which the carriage 20 and the extendable conveyor 30 have moved from a position on the mounting surface 12 of the mounting carriage 10 to a position outside the mounting surface 12 also includes, for example, a state in which a portion of the extendable conveyor 30 is disposed on the mounting surface 12. In other words, the state in which the accessory transport device has moved from a position on the mounting surface 12 of the mounting carriage 10 to a position outside the mounting surface 12 also includes a state in which a portion of the accessory transport device is disposed on the mounting surface 12.

[0020] As described above, when the extension conveyor 40 is used to transport luggage, the extension conveyor 40, which is disposed below the loading cart 10, needs to be disposed above the loading cart 10. To accommodate this, the loading cart 10 has a switching mechanism and a height adjustment mechanism. The switching mechanism is a mechanism for switching the extension conveyor 40 from one state to the other, between a state where the extension conveyor 40 is disposed below the loading cart 10 and a state where the extension conveyor 40 is disposed above the loading cart 10. The height adjustment mechanism is a mechanism for adjusting the height of the transport surface of the extension conveyor 40 when the extension conveyor 40 is disposed above the loading cart 10.

[0021] 6A to 6C are diagrams illustrating the switching operation of the expansion conveyor 40. FIG. For example, as shown in Fig. 6A, when the extension conveyor 40 is installed on the side of the lower part of the loading cart 10, a holding mechanism for holding the extension conveyor 40 in a state where it is arranged on the side is provided on the side of the lower part of the loading cart 10. The holding mechanism is, for example, a plurality of hooks provided on the side of the lower part of the loading cart 10 so that the frame of the extension conveyor 40 can be hooked. As shown in FIG. 6C, the worker manually lifts the expansion conveyor 40 and places it on top of the loading cart 10. The upper part of the loading cart 10 is provided with one or more first engagement parts (not shown) for horizontal alignment when the extension conveyor 40 is placed on the upper part. Meanwhile, the frame of the extension conveyor 40 is provided with one or more second engagement parts (not shown) for alignment. When an operator manually lifts the extension conveyor 40 and places it on the upper part of the loading cart 10, the second engagement parts of the extension conveyor 40 are engaged with the first engagement parts of the loading cart 10, thereby positioning the extension conveyor 40 in the horizontal direction on the upper part of the loading cart 10. In this case, the above-mentioned hook portion, and the first and second engaging portions constitute the switching mechanism.

[0022] Furthermore, for example, when the extension conveyor 40 is placed at the bottom below the loading cart 10 as shown in FIG. 6B, the worker may manually lift the extension conveyor 40 and place it on top of the loading cart 10, as in the case described above, but instead, the loading cart 10 may have a lifting device that automatically or manually raises and lowers the extension conveyor 40 from the bottom to the top of the loading cart 10. If the expansion conveyor 40 is large and heavy, it would be a heavy burden for an operator to manually change the position of the expansion conveyor 40 between the upper and lower parts. If the loading cart 10 has a lifting device, as shown in Fig. 6C, the worker operates the lifting device to lift the expansion conveyor 40 to the top of the loading cart 10. The lifting device is, for example, one or more winch mechanisms provided on the top of the loading cart 10. The lifting device may be powered, or may have a mechanism that converts the operation of a rotary handle or foot pedal for manual operation into power. In this case, the above-mentioned lifting device is the switching mechanism.

[0023] Here, in both the cases of FIG. 6A and FIG. 6B, after the worker places the extension conveyor 40 on the top of the loading cart 10, the worker then adjusts the height of the conveying surface of the extension conveyor 40 using the height adjustment mechanism. The height adjustment mechanism is provided, for example, on a plurality of vertically extending frames (hereinafter referred to as "vertical frames") that support the upper frame of the mounting cart 10 where the expansion conveyor 40 is located. Each vertical frame is composed of two long frames nested together. The two long frames are slidably movable relative to each other. The sliding positions of the two long frames can be adjusted by a so-called rack-and-pinion position adjustment mechanism, for example, by engaging a pinion rotatable by a rotary handle provided on one long frame with a rack provided on the other long frame. Note that instead of the rotary handle, a mechanism that converts the operation of a foot pedal into rotational force may be used. In this case, the worker can adjust the relative height positions of the frame at the lower position and the frame at the upper position of the loading cart 10 by turning the rotary handle, thereby adjusting the height of the expansion conveyor 40 after it is placed at the top.

[0024] The dolly 20 is an example of an auxiliary conveying device and a second dolly. Fig. 4 is an external perspective view of the dolly 20. As shown in Fig. 4, the dolly 20 has a portion 23 (hereinafter referred to as "the dolly main body 23") that functions as a dolly and has a plurality of wheels 21, and an unloading auxiliary device 22.

[0025] The dolly body 23 is an example of a moving means provided at the bottom of the attached transport device. Each of the multiple wheels 11 provided on the dolly body 23 is supported at the bottom of the dolly 20 so as to be rotatable around a horizontal axis and a vertical axis. The dolly 20 is movable by having the wheels 11. For example, the dolly 20 can move between a position on the mounting surface 12 of the loading dolly 10 and a position outside the mounting surface 12. For example, the position outside the mounting surface 12 is the floor of the cargo compartment of a truck or the floor of a container.

[0026] The unloading auxiliary device 22 is an example of an object transport means provided on the upper surface of the auxiliary transport device, and is also an example of a second conveyor that is a drive conveyor. The unloading auxiliary device 22 is provided on the upper part of the dolly 20 so as to form its upper surface. The unloading auxiliary device 22 is a device that assists manual unloading of goods from the cargo compartment of a truck or a container. The unloading auxiliary device 22 has a drive conveyor, the upper surface of which forms the transport surface of the dolly 20. For example, the drive conveyor is a belt conveyor driven by a drive roller. The transport surface of the drive conveyor is formed by the surface of the belt. The drive roller is driven, for example, by an electric motor, and its rotation speed is controlled by the current applied to the electric motor, etc. The unloading auxiliary device 22 may have, for example, three configurations.

[0027] Furthermore, when the trolley 20 and the extension conveyor 40 are connected, the connecting portion 41 of the extension conveyor 40 is connected to the end portion located near the unloading auxiliary device 22 on the trolley 20, so that the extension conveyor 40 and the unloading auxiliary device 22 of the trolley 20 can both form a conveying surface. The dolly 20 may also have a loading assist device instead of the unloading assist device 22. The loading assist device is a device that assists manual loading of cargo into the trunk of a truck or a container.

[0028] The extendable conveyor 30 is an example of an auxiliary conveying device and a third conveyor. Fig. 5 is an external perspective view of the extendable conveyor 30. As shown in Fig. 5, the extendable conveyor 30 can form a single conveying surface together with the carriage 20 and the extension conveyor 40. The extendable conveyor 30 adjusts the length of the conveying surface in the conveying direction by extending and contracting in accordance with the amount of movement of the carriage 20 from the loading carriage 10. The extendable conveyor 30 has a conveyor section 31, an extendable section 32, a plurality of wheels 33, and a connecting section 34.

[0029] The conveyor unit 31 is an example of an object conveying means provided on the upper surface of the auxiliary conveying device. The conveyor unit 31 is provided so as to form the upper surface of the extendable conveyor 30 itself. For example, the conveyor unit 31 is a free roller conveyor. The conveyor unit 31 has a plurality of free rollers, which form the conveying surface of the extendable conveyor 30. The extendable unit 32 uses a known cross link such as a pantograph or a magic wand as an extendable mechanism, and can extend or contract the conveying surface of the conveyor unit 31 in the conveying direction.

[0030] The wheels 33 are an example of a moving means provided at the bottom of the auxiliary transport device. The wheels 33 are supported at the bottom of the extendable section 32 so as to be rotatable around a horizontal axis and a vertical axis. The wheels 33 enable the telescopic conveyor 30 to move. For example, the telescopic conveyor 30 can move between a position on the mounting surface 12 of the mounting cart 10 and a position outside the mounting surface 12.

[0031] The extendable conveyor 30 is connectable to the carriage 20 and the extension conveyor 40. One end portion of the extendable conveyor 30, which serves as a first end portion, is connectable to one end portion of the extension conveyor 40. For example, as shown in FIG. 7, a connecting portion 34 is provided at one end portion of the extendable conveyor 30. This connecting portion 34 is connectable to a connecting portion 41 provided at one end portion of the extension conveyor 40. In this case, the connecting portion 34 is hook-shaped and can be hooked onto the connecting portion 41. In addition, the other end portion of the extendable conveyor 30, which serves as a second end portion, is connectable to one end portion of the carriage 20.

[0032] As shown in FIGS. 1 to 3, the loading cart 10 has a slope 51, an article stopper 52, and a fixed stopper 53.

[0033] The slope 51 is provided at one longitudinal end of the loading cart 10. This slope 51 bridges between the loading surface 12 of the loading cart 10 and the floor of the cargo compartment of the truck or the floor of the container. The base end of the slope 51 is rotatably supported on one end of the loading cart 10 around a horizontal axis and faces the loading surface 12. The horizontal axis is an axis extending in the short direction and horizontally at one end of the loading cart 10. When no cargo transport operation is being performed, the slope 51 is stored with its tip facing vertically upward. When cargo transport operation is being performed, the slope 51 rotates around its base end as a rotation center, so that the tip rotates from facing vertically upward to facing approximately horizontally, and can abut against the floor of the cargo compartment of the truck, etc. At this time, the upper surface of the slope 51, which serves as the running surface, is connected in a straight line with the loading surface 12. The upper surface that serves as the running surface is the surface of the slope 51 that is located opposite to the surface that abuts against the floor surface.

[0034] Fig. 3 is a diagram showing a state in which the tip of the slope 51 is lowered from the stored state as described above, so that the slope 51 can abut against the floor surface of the luggage compartment of the truck, etc. Fig. 2 is a diagram showing a state in which the tip of the slope 51 is raised from the state during luggage transport work, so that the slope 51 is stored in the loading cart 10. When the ramp 51 is able to abut against the floor surface of the cargo compartment of a truck or the like, the ramp 51 can movably support the wheels 21 of the trolley 20 and the wheels 33 of the extendable conveyor 30 when the trolley 20 and the extendable conveyor 30 move between a position on the mounting surface 12 and a position on the floor surface outside the mounting surface 12.

[0035] Furthermore, the length of the slope 51 may be adjustable in consideration of the length of the gap that occurs between the end of the mounting surface 12 and the end of the floor surface. Fig. 8 is a diagram showing the configuration of a slope 51 whose length is adjustable. As shown in Fig. 8, the slope 51 is composed of a plurality of slope pieces 51a and a plurality of hinges 51b. The plurality of slope pieces 51a are aligned in the movement direction of the attached conveying device, and hinges 51b are provided between the slope pieces 51a adjacent to each other in the movement direction. In the slope 51, the number of slope pieces 51a is adjusted according to the length of the gap.

[0036] As shown in FIGS. 1 to 3 , the article stopper 52 is provided at one end of the loading cart 10 in the longitudinal direction of the transport direction, that is, at the end opposite the one end that faces the truck compartment or container during cargo transport operations. The article stopper 52 is provided downstream in the transport direction of the transport surface of the extension conveyor 40 arranged above the loading cart 10, so as to straddle the transport surface in the lateral direction of the loading cart 10. Therefore, the article stopper 52 can prevent articles transported on the transport surface of the extension conveyor 40 arranged above the loading cart 10 from passing through the transport surface of the extension conveyor 40 and falling. The article stopper 52 may be provided on the extension conveyor 40 itself, rather than on the loading cart 10.

[0037] 2, a plurality of fixed stoppers 53 are provided on the lower part of the loading cart 10. These fixed stoppers 53 are pressed against the ground to fix the loading cart 10 to the ground. The fixed stopper 53 may be provided on the lower part of the mounting cart 10 via a stopper lifting device (not shown). The stopper lifting device is operated by an operator to extend the fixed stopper 53 in a substantially vertical direction from a state in which the fixed stopper 53 is not in contact with the ground to a state in which the fixed stopper 53 is in contact with the ground. The stopper lifting device also contracts the fixed stopper 53 in a substantially vertical direction from a state in which the fixed stopper 53 is in contact with the ground to a state in which the fixed stopper 53 is not in contact with the ground. This stopper lifting device is, for example, a known lifter mechanism or a hydraulic jack.

[0038] Incidentally, by extending the fixed stopper 53 on the other end side of the mounting cart 10 longer than the other fixed stoppers 53 while keeping it in contact with the ground, the other end of the mounting cart 10 can be placed in an inclined state in which it is positioned higher than one end. This inclined state makes it relatively easy for the worker to move the accessory transport device (the cart 20 and the extendable conveyor 30 in this first embodiment) from on the mounting surface 12 of the mounting cart 10 to outside the mounting surface 12. This is because, in the inclined state, the accessory transport device having moving means such as wheels can easily move outward from the mounting surface 12 due to its own weight.

[0039] 9 is a diagram showing the carriage 20 of the conveying device 1 being carried to the back of the cargo room 102 of the truck 101. As shown in this Fig. 9, for example, the conveying device 1 can carry the carriage 20 to the back of the cargo room 102 of the truck 101 by extending the extendable conveyor 30 and arranging the extension conveyor 40 above the loading carriage 10, and the carriage 20, the extendable conveyor 30, and the extension conveyor 40 can form one conveying surface or a series of conveying surfaces. The conveying device 1 can transport cargo piled up in the cargo room 102 to the outside of the cargo room 102 using the conveying surface formed by the carriage 20, the extendable conveyor 30, and the extension conveyor 40.

[0040] Next, the unloading operation when the conveying device 1 according to the first embodiment is used will be described with reference to Figures 10A to 10E. Figures 10A to 10E are diagrams sequentially showing the unloading operation when the conveying device 1 is used. The extension conveyor 40 is arranged on the side of the lower part of the loading cart 10, and the loading cart 10 is equipped with a cart 20 and an extendable conveyor 30 as auxiliary transport devices.

[0041] 10A, when the truck 101 arrives at the berth 103, a worker moves the conveying device 1 according to the first embodiment from the storage location to the conveying work area, that is, to the front of the cargo compartment 102 of the truck 101. The berth 103 is a space in a logistics center or a warehouse where the truck 101 stops to load or unload cargo.

[0042] Next, as shown in FIG. 10B , the worker connects the other end of the extendable conveyor 30 to one end of the dolly 20, and moves the dolly 20 into the luggage compartment 102 from the loading surface 12 of the loading dolly 10. Therefore, the extendable conveyor 30 follows the dolly 20. As a result, the unloading assist device 22 of the dolly 20 moves in front of the luggage 104 stacked in the luggage compartment 102. Then, the worker transports the luggage 104 stacked in the luggage compartment 102 one by one using the unloading assist device 22 of the dolly 20 and the extendable conveyor 30.

[0043] Next, as shown in FIG. 10C , when a certain amount of luggage 104 has been transported from the luggage compartment 102, the worker moves the dolly 20 further into the luggage compartment 102. As a result, the extendable conveyor 30 follows the dolly 20. Next, the worker moves the extendable conveyor 30 from the mounting surface 12 of the loading dolly 10 to the outside thereof, thereby creating space above the loading dolly 10. Then, the worker moves the extension conveyor 40 from the side of the loading dolly 10 to the top. Furthermore, the worker connects the connecting portion 34 of the extendable conveyor 30 and the connecting portion 41 of the extension conveyor 40 to each other.

[0044] Next, as shown in FIG. 10D, when all of the luggage 104 has been transported from the luggage compartment 102, the worker releases the connection between the connecting parts 34 and 41 and moves the expansion conveyor 40 from the top of the loading cart 10 to the side.

[0045] Next, as shown in FIG. 10E, the worker moves the dolly 20 toward the outside of the cargo compartment 102 and gradually shortens the extendable conveyor 30. As a result, the dolly 20 and the extendable conveyor 30 are mounted on the mounting surface 12 of the mounting dolly 10. Then, the worker moves the transport device 1 away from in front of the cargo compartment 102 of the truck 101.

[0046] As described above, the transport device 1 according to the first embodiment comprises a loading cart 10 having a loading surface 12 on which an accessory transport device having an object transport means on its upper surface and a moving means on its lower surface can be mounted, and an expansion conveyor 40 that can be placed on top of the loading cart 10 and has a connecting part 41 that can be connected to an end of the object transport means, and that, when the accessory transport device has moved from a position on the loading surface 12 to a position outside the loading surface 12, can be placed on top of the loading cart 10 and form a transport surface together with the accessory transport device by connecting the end of the object transport means to the connecting part 41. Therefore, the transport device 1 can move with the accessory transport device mounted as needed, and the entire set of equipment used for luggage transport work can be moved at once.

[0047] The conveying apparatus 1 further includes an auxiliary conveying device. The auxiliary conveying device has an unloading auxiliary device 22 which is a drive conveyor as object conveying means, a dolly 20 having a dolly as moving means, an extendable section 32, a conveyor section 31 as object conveying means, wheels 33 at the bottom of the extendable section 32, and an extendable conveyor 30 which has a first end connectable to the loading dolly 10 by a connecting section 41 and a second end connectable to the dolly 20, and which forms a conveying surface together with the extension conveyor 40 and the unloading auxiliary device 22. Therefore, the conveying apparatus 1 can move the dolly 20 and the extendable conveyor 30 as auxiliary conveying devices, and the extension conveyor 40 as a complete device at once. Furthermore, when a trolley 20 having an unloading auxiliary device 22 which is a driving conveyor, an extendable conveyor 30, and an expansion conveyor 40 are used, the cargo loaded in the cargo compartment of a truck or the like can be sequentially carried out from the front side while the conveying surface is moved to the back of the cargo compartment, and the driving force of the unloading auxiliary device 22 allows the cargo to be steadily carried out, thereby realizing efficient cargo transport work.

[0048] The loading cart 10 is provided with a switching mechanism for switching the extension conveyor 40 from one state to the other, that is, a state in which the extension conveyor 40 is disposed below the loading cart 10 and a state in which the extension conveyor 40 is disposed above the loading cart 10. Therefore, the transport device 1 can easily switch the position of the extension conveyor 40 to an appropriate placement position.

[0049] The transport device 1 is equipped with a height adjustment mechanism that enables adjustment of the height of the transport surface of the extension conveyor 40 when the extension conveyor 40 is placed above the loading carriage 10. Therefore, the transport device 1 can fine-tune the height of the transport surface of the extension conveyor 40, once placed above, to match the height of the transport surfaces of the carriage 20 and the extendable conveyor 30.

[0050] The loading cart 10 movably supports the accessory transport device when the accessory transport device moves between a position on the loading surface 12 and a position outside the loading surface 12, and includes a slope 51 whose length in the movement direction of the accessory transport device is adjustable. Therefore, the transport device 1 can adjust the length of the slope 51 according to the length of the gap that occurs between the position on the loading surface 12 and the position outside the loading surface 12.

[0051] The loading cart 10 is provided with a transported object stopper 52 for preventing an object, which is transported as an object on the transport surface of the extension conveyor 40 arranged above the loading cart 10, from passing through the transport surface of the extension conveyor 40 and falling. Therefore, the transport device 1 can prevent the object from falling from the extension conveyor 40.

[0052] The loading cart 10 is provided with a fixing stopper 53 for fixing the loading cart 10 to the ground. Therefore, the conveying device 1 can fix the loading cart 10 to the ground during the baggage conveying operation.

[0053] The loading cart 10 is equipped with a stopper lifting device that can raise and lower the fixed stopper 53. Therefore, the transport device 1 can bring the fixed stopper 53 into contact with the ground. Furthermore, since the transport device 1 has the stopper lifting device, the other end of the loading cart 10 can be placed in an inclined state in a position higher than the one end, and the worker can relatively easily move the accessory transport device from above the loading surface 12 of the loading cart 10 to outside the loading surface 12.

[0054] It should be noted that, within the scope of the present disclosure, any of the components of the embodiments may be modified or omitted. [Explanation of symbols]

[0055] 1. Conveyor device 10 Loading cart (first cart) 11 wheels 12 Mounting surface (running surface) 20 Cart (attached transport device, second cart) 21 wheels 22 Unloading auxiliary device (object conveying means, second conveyor, drive conveyor) 23 Cart body (means of transportation) 30 Telescopic conveyor (auxiliary conveying device, third conveyor) 31 Conveyor section (object transport means) 32 Extendable part 33 Wheels (transportation means) 34 Connecting part 40 Extension Conveyor (First Conveyor) 41 Connecting part 51 Slope 51a Slope piece 51b Hinge 52 Transport stopper 53 Fixed stopper 101 Tracks 102 luggage compartment 103 Bath 104 Luggage C. Conveying direction

Claims

1. a first carriage having a mounting surface on which an accessory transport device having an object transport means on an upper surface and a moving means on a lower surface can be mounted; a first conveyor that can be arranged on top of the first carriage and has a connecting part that can be connected to an end of the object transport means, and that can form a transport surface together with the attached transport device by connecting the end of the object transport means to the connecting part when the attached transport device has moved from a position on the mounting surface to a position outside the mounting surface; A conveying device characterized by:

2. The auxiliary conveying device is further provided, The auxiliary conveying device a second conveyor that is a drive conveyor as the object transport means, and a second carriage that has a carriage as the moving means; a third conveyor having an extendable section, a conveyor section as the object transport means, wheels at the bottom of the extendable section as the moving means, a first end section connectable to the first conveyor by the connecting section, and a second end section connectable to the second carriage, and forming the transport surface together with the first conveyor and the second conveyor; 2. The conveying device according to claim 1.

3. The first carriage comprises: A switching mechanism is provided for switching the first conveyor from one state to the other of a state in which the first conveyor is disposed below the first carriage and a state in which the first conveyor is disposed above the first carriage.

3. The conveying device according to claim 1 or 2.

4. The first carriage comprises: a height adjustment mechanism that enables adjustment of the height of the conveying surface of the first conveyor when the first conveyor is disposed above the first carriage; 2. The conveying device according to claim 1.

5. The first carriage comprises: a slope that movably supports the attachment transport device when the attachment transport device moves between a position on the mounting surface and a position outside the mounting surface, and that is adjustable in length in the movement direction of the attachment transport device; 3. The conveying device according to claim 1 or 2.

6. a transported object stopper for preventing an object, which is transported on the transport surface of the first conveyor arranged on the upper part of the first carriage, from passing through and falling off the transport surface of the first conveyor; 3. The conveying device according to claim 1 or 2.

7. The first carriage comprises: A fixed stopper is provided for fixing the first carriage to the ground.

3. The conveying device according to claim 1 or 2.

8. A stopper lifting device is provided to lift the fixed stopper.

8. The transport device according to claim 7.

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