Conveyor

Abstract

To provide a transport device capable of moving a complete set of equipment at once. [Solution] The conveying device 1 comprises a mounting cart 10 having a mounting surface 12 on which an attached conveying device having an object conveying means on its upper surface and a moving means on its lower portion can be mounted, and an expansion conveyor 40 which can be placed on the upper part of the mounting cart 10 and has a connecting part 41 which can be connected to an end of the object conveying means, and which, when the attached conveying device moves from a position on the mounting surface 12 to a position outside the mounting surface 12, can form a conveying surface together with the attached conveying device by connecting the end of the object conveying means to the connecting part 41.

Description

[Technical field]

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

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

[0003] [Patent Document 1] JP 2000-142993 A 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"), it is necessary to move the conveyor from its storage location to the front of the truck bed or container, which is the transport work area. In addition, during luggage transport work, depending on the situation, other transport devices may be required to perform the work smoothly. In such cases, it is necessary to move both the conveyor and the other transport devices from their storage locations to the transport work area, which causes problems such as a heavy burden on workers and low efficiency. For example, conventional conveyors such as those disclosed in Patent Document 1 do not take this problem into consideration.

[0005] The present disclosure has been made to solve the above-mentioned problems, and has an object 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 cart 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 portion can be mounted, and a first conveyor that can be placed on the top of the first cart 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 the top of the first cart 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. Effect 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 description of the drawings]

[0008] [Figure 1] 1 is a perspective view of the appearance of a transport device according to a first embodiment. [Diagram 2] FIG. 13 is an external perspective view of the transport device when the loading cart is loaded with a cart and an extendable conveyor which are auxiliary transport devices. [Diagram 3] FIG. 13 is an external perspective view of the expansion conveyor disposed on the upper part of the mounting cart. [Figure 4] FIG. 2 is a perspective view of the exterior of a carriage which is an auxiliary transport device. [Diagram 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. 13 is a diagram showing the configuration of a slope whose length is adjustable. [Figure 9] FIG. 13 is a diagram showing a state in which a dolly, which is an auxiliary transport device, is transported to the back of the luggage compartment of the truck. [Figure 10A] 1A to 1C are diagrams illustrating an unloading operation 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 is a diagram showing the unloading operation following FIG. 10B. [Figure 10D] FIG. 10B is a diagram showing the unloading operation following FIG. 10C. [Figure 10E] FIG. 10B is a diagram showing the unloading operation following FIG. 10D. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 Fig. 1 to Fig. 10. Note that an arrow C in each drawing indicates a conveying direction of a baggage, which is an object or a conveyed article.

[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 baggage conveying work using the conveying device 1 is assumed to be used when loading and unloading baggage, which is a transported object, from a luggage compartment of a truck, a container, or the like. Note that the baggage conveying work using the conveying device 1 may also be used when loading baggage into a luggage compartment 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 a horizontal axis and a vertical axis. The loading cart 10 can move in any direction in a horizontal plane by having the wheels 11. For example, the loading cart 10 can move together with the extension conveyor 40 between the storage location of the transport device 1 and the front of the cargo compartment of a truck or the front of a container, which is a transport work site for luggage. At this time, the transport device 1 is stored in the storage location with the extension conveyor 40 attached. 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 dolly 10 is loaded with the dolly 20 and the extendable conveyor 30, which are the attached conveying devices. As shown in FIG. 2, the loading dolly 10 can load the conveying dolly 20 and the extendable conveyor 30. The dolly 20 and the extendable conveyor 30 are an example of the attached conveying device. When the loading dolly 10 is loaded with the dolly 20 and the extendable conveyor 30, the dolly 20 and the extendable conveyor 30 are loaded in that order when viewed from the side that will be the cargo compartment side or the container side of the truck during the baggage conveying operation. In addition, when the loading dolly 10 is loaded with the attached conveying device, it can move together with the attached conveying device and the extension conveyor 40. At this time, when the attached conveying device is loaded on the loading dolly 10, the conveying device 1 is equipped with the extension conveyor 40 and is stored in a storage location with the attached conveying device loaded on the loading dolly 10.

[0014] Here, the loading cart 10 being "capable of mounting the auxiliary transport device (in the example of the first embodiment, the cart 20 and the extendable conveyor 30)" means that the loading cart 10 only needs to have a structure capable of mounting the auxiliary transport device, and the loading cart 10 does not need to be equipped with the auxiliary transport device. In other words, the transport device 1 only needs 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 mounting cart 10 can be mounted is not limited as long as it includes a structure having an object transport means on its upper surface and a moving means on its lower portion. In the case where the auxiliary transport device is the dolly 20 or the extendable conveyor 30 as in the first embodiment, 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 auxiliary transport devices that can be mounted on the mounting cart 10 are at least one each of a cart 20 and an extendable conveyor 30.

[0015] FIG. 3 is an external perspective view of the state in which the extension conveyor 40 is disposed on the upper part of the mounting dolly 10. As shown in FIG. 1 and FIG. 3, the mounting dolly 10 has a mounting surface 12. The mounting surface 12 is a surface on which an auxiliary transport device can be mounted, and in this case, is a surface for mounting the dolly 20 and the telescopic conveyor 30. The mounting surface 12 also serves as a running surface for the dolly 20 and the telescopic conveyor 30 to move on the mounting dolly 10. In this way, 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 dolly 10 and is disposed on both sides in the width direction of the mounting dolly 10. In this case, the mounting surface 12 is disposed above the wheels 11. The dolly 20 and the telescopic 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 mounting cart 10 refers to the direction in which the attached transport device travels on the mounting cart 10. The mounting surface 12 is also used as a running surface, but it does not have to be used as the running surface. When the mounting surface 12 and the running surface are provided separately, the attached transport device is moved or transferred from the mounting surface 12 to the running surface.

[0016] The expansion conveyor 40 is an example of a first conveyor. When the expansion conveyor 40 is not transporting luggage, it is disposed at the bottom of the loading cart 10. For example, as shown in FIG. 1, the expansion conveyor 40 is disposed at the side of the bottom of the loading cart 10 so that the transport surface described below is substantially vertical. Alternatively, as shown in FIG. 6B, the expansion conveyor 40 is disposed at the bottom of the bottom of the loading cart 10 so that the transport surface is horizontal. Moreover, when the expansion conveyor 40 is transporting luggage, it is disposed at the top of the loading cart 10.

[0017] For example, the expansion conveyor 40 is a free roller conveyor. In this case, the expansion conveyor 40 has a plurality of free rollers, which form the conveying surface of the expansion conveyor 40. That is, the free rollers of the expansion conveyor 40 form the conveying surface when the expansion conveyor 40 is disposed on the upper part of the mounting dolly 10 as shown in FIG. 3. In addition, when the expansion conveyor 40 is used together with the dolly 20 and the extendable conveyor 30 in the luggage conveying operation, the free rollers of the expansion conveyor 40 form one conveying surface together with the dolly 20 and the extendable conveyor 30. The expansion conveyor 40 is used to extend the conveying surface in the conveying direction when the conveying surface by the dolly 20 and the extendable conveyor 30 is not long enough in the conveying direction.

[0018] 7A and 7B are diagrams showing the connection between the telescopic conveyor 30 and the expansion conveyor 40. As shown in FIG. 7A and FIG. 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 on the upper part of the mounting cart 10 as shown in FIG. 3, and the extension conveyor 40 is used together with the cart 20 and the telescopic conveyor 30. When at least the telescopic conveyor 30 of the cart 20 and the telescopic conveyor 30 is mounted on the mounting cart 10 and the telescopic conveyor 30 is used together with the extension conveyor 40 for baggage transport work, as shown in FIG. 7A and FIG. 7B, the connecting portion 41 can be connected to the connecting portion 34 of the telescopic conveyor 30. The details of the connecting portion 34 will be described later. When only the cart 20 of the cart 20 and the telescopic conveyor 30 is mounted on the mounting cart 10 and the cart 20 is used together with the extension conveyor 40 for baggage 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 the auxiliary conveying device are mounted on the mounting surface 12 of the mounting dolly 10 and moved from the storage place to the conveying work site. In this case, when starting the luggage conveying work, the dolly 20 and the extendable conveyor 30 are moved from the position on the mounting surface 12 of the mounting dolly 10 to the position outside the mounting surface 12. Then, as described above, the extension conveyor 40 is disposed on the upper part of the mounting dolly 10 in a state in which the dolly 20 and the extendable conveyor 30 are moved from the position on the mounting surface 12 of the mounting dolly 10 to the position outside the mounting surface 12, and the connecting part 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 luggage conveying work, and the luggage can be maintained in a state suitable for conveying. The state in which the cart 20 and the extendable conveyor 30 have moved from a position on the mounting surface 12 of the mounting cart 10 to a position outside the mounting surface 12 also includes, for example, a state in which a part of the extendable conveyor 30 is disposed on the mounting surface 12. In other words, the state in which the auxiliary transport device has moved from a position on the mounting surface 12 of the mounting cart 10 to a position outside the mounting surface 12 also includes a state in which a part of the auxiliary transport device is disposed on the mounting surface 12.

[0020] Here, as described above, when the extension conveyor 40 is used to transport luggage, the extension conveyor 40 arranged at the bottom of the mounting cart 10 needs to be arranged at the top of the mounting cart 10. Corresponding to this, the mounting 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 state, that is, a state in which the extension conveyor 40 is arranged at the bottom of the mounting cart 10 and a state in which the extension conveyor 40 is arranged at the top of the mounting cart 10. The height adjustment mechanism is a mechanism for making it possible to adjust the height of the transport surface of the extension conveyor 40 when the extension conveyor 40 is arranged at the top of the mounting cart 10.

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

[0022] Also, for example, when the extension conveyor 40 is placed at the bottom under the mounting cart 10 as shown in FIG. 6B, as in the above-mentioned case, an operator may manually lift the extension conveyor 40 and place it on the top of the mounting cart 10, but instead, the mounting 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 mounting 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. When 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 upper part of the loading cart 10. The lifting device is, for example, one or more winch mechanisms provided on the upper part of the loading cart 10. The lifting device may have a power source, or may have a mechanism for converting the operation of a rotary handle or a foot pedal for manual operation into power. In this case, the lifting device described above is the switching mechanism.

[0023] Here, in both cases of FIG. 6A and FIG. 6B, after the worker places the expansion conveyor 40 on the upper part of the mounting cart 10, the worker then adjusts the height of the conveying surface of the expansion conveyor 40 using the height adjustment mechanism. The height adjustment mechanism is provided, for example, in a plurality of vertically extending frames (hereinafter referred to as "vertical frames") that support the frame at the upper position where the expansion conveyor 40 is disposed among the frames constituting the mounting cart 10. Each vertical frame is composed of two long frames that are combined with each other in a nested manner. The two long frames can slide relative to each other. The sliding positions of the two long frames can be adjusted by a so-called rack and pinion type position adjustment mechanism that engages a pinion that can be rotated by a rotating handle provided on one of the long frames with a rack provided on the other long frame. Note that instead of the rotating handle, a mechanism that converts the operation of a foot pedal into a rotational force may be adopted. 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 mounting cart 10 by turning the rotary handle, thereby making it possible to adjust the height of the expansion conveyor 40 after it has been 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 auxiliary 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 due to having the wheels 11. For example, the dolly 20 can move between a position on the mounting surface 12 of the mounting dolly 10 and a position outside the mounting surface 12. For example, the position outside the mounting surface 12 is the floor surface of the luggage compartment of a truck or the floor surface 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 from the cargo compartment of a truck or a container. The unloading auxiliary device 22 has a drive conveyor, and the upper surface of this drive conveyor 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 by, for example, 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] In addition, when the trolley 20 and the extension conveyor 40 are connected, the connecting portion 41 of the extension conveyor 40 is connected to an end portion located near the unloading auxiliary device 22 of 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. Moreover, the dolly 20 may 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 cargo compartment of a truck or a container.

[0028] The telescopic conveyor 30 is an example of an auxiliary conveying device and a third conveyor. FIG. 5 is an external perspective view of the telescopic conveyor 30. As shown in FIG. 5, the telescopic conveyor 30 can form one conveying surface together with the dolly 20 and the extension conveyor 40. The telescopic conveyor 30 adjusts the length of the conveying surface in the conveying direction by expanding and contracting according to the amount of movement of the dolly 20 from the loading dolly 10. The telescopic conveyor 30 has a conveyor section 31, an expandable section 32, a plurality of wheels 33, and a connecting section 34.

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

[0030] The wheels 33 are an example of a moving means provided at the lower part of the auxiliary transport device. The wheels 33 are supported at the lower part of the extendable part 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 telescopic conveyor 30 can be connected to the carriage 20 and the expansion conveyor 40. One end of the telescopic conveyor 30, which is a first end, can be connected to one end of the expansion conveyor 40. For example, as shown in FIG. 7, a connecting portion 34 is provided at one end of the telescopic conveyor 30. This connecting portion 34 can be connected to a connecting portion 41 provided at one end of the expansion conveyor 40. At this time, the connecting portion 34 is hook-shaped and can be hooked onto the connecting portion 41. In addition, the other end of the telescopic conveyor 30, which is a second end, can be connected to one end 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 end of the loading dolly 10 in the longitudinal direction. This slope 51 bridges between the loading surface 12 of the loading dolly 10 and the floor surface of the cargo room of the truck or the floor surface of the container. The base end of the slope 51 is supported at one end of the loading dolly 10 so as to be rotatable around a horizontal axis and faces the loading surface 12. The horizontal axis is an axis that extends in the short direction and horizontal direction at one end of the loading dolly 10. When no luggage transport operation is being performed, the slope 51 is stored in a position in which its tip faces vertically upward. When luggage transport operation is being performed, the slope 51 rotates around its base end as a rotation center, so that the tip of the slope 51 rotates in a direction from facing vertically upward to facing approximately horizontally, and can abut against the floor surface of the cargo room of the truck or the like. At this time, the upper surface of the slope 51, which is the running surface, is connected in a straight line with the loading surface 12. The upper surface serving as the running surface is the surface of the slope 51 that is located opposite 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 the luggage transport operation, so that the slope 51 is stored in the loading cart 10. When the ramp 51 is capable of abutting 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 telescopic conveyor 30 when the trolley 20 and the telescopic conveyor 30 move between a position on the mounting surface 12 and a position outside the mounting surface 12.

[0035] Moreover, the length of the slope 51 may be adjustable, taking into consideration 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 lined up in the movement direction of the attached transport 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 above-mentioned gap.

[0036] As shown in Figs. 1 to 3, the transported article stopper 52 is provided on one end of the loading cart 10 in the transport direction, which is the longitudinal direction of the loading cart 10, opposite to the one end that is the side that becomes the truck compartment side or the container side during the baggage transport operation. The transported article stopper 52 is provided on the downstream side of the transport direction of the transport surface of the extension conveyor 40 arranged on the upper part of the loading cart 10 so as to straddle the transport surface in the short direction of the loading cart 10. Therefore, the transported article stopper 52 can prevent the baggage transported on the transport surface of the extension conveyor 40 arranged on the upper part of the loading cart 10 from passing through the transport surface of the extension conveyor 40 and falling. The transported article stopper 52 may be provided on the extension conveyor 40 itself, not on the loading cart 10.

[0037] 2, a plurality of fixed stoppers 53 are provided on the lower part of the loading cart 10. The 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] In addition, 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 the fixed stopper 53 in contact with the ground, the other end of the mounting cart 10 can be in an inclined state in which it is higher than the 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 embodiment 1) from the mounting surface 12 of the mounting cart 10 to the outside of the mounting surface 12. This is because in the inclined state, the accessory transport device having a moving means such as wheels can easily move outward from the mounting surface 12 by its own weight.

[0039] 9 is a diagram showing a state where the dolly 20 of the conveying device 1 is carried into 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 dolly 20 into the back of the cargo room 102 of the truck 101 by extending the telescopic conveyor 30 and arranging the extension conveyor 40 above the mounting dolly 10, and the dolly 20, the telescopic conveyor 30, and the extension conveyor 40 can form one conveying surface or a series of conveying surfaces. The conveying device 1 can convey the luggage piled up in the cargo room 102 to the outside of the cargo room 102 using the conveying surface formed by the dolly 20, the telescopic conveyor 30, and the extension conveyor 40.

[0040] Next, the unloading operation when the conveying device 1 according to the embodiment 1 is used will be described with reference to Fig. 10A to Fig. 10E. Fig. 10A to Fig. 10E are diagrams sequentially showing the unloading operation when the conveying device 1 is used. The expansion conveyor 40 is disposed on the side of the lower portion 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, an operator moves the conveying device 1 according to the first embodiment from a storage location to a conveying work site, 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] 10B, the worker connects the other end of the extendable conveyor 30 to one end of the dolly 20, and causes the dolly 20 to enter the luggage compartment 102 from the mounting surface 12 of the loading dolly 10. Therefore, the extendable conveyor 30 follows the dolly 20. As a result, the unloading auxiliary 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 auxiliary device 22 of the dolly 20 and the extendable conveyor 30.

[0043] Next, as shown in FIG. 10C, when a certain amount of baggage 104 has been transported from the luggage compartment 102, the worker moves the cart 20 further into the luggage compartment 102. As a result, the extendable conveyor 30 follows the cart 20. Next, the worker moves the extendable conveyor 30 from the mounting surface 12 of the loading cart 10 to the outside thereof, thereby forming a space above the loading cart 10. Then, the worker moves the extension conveyor 40 from the side of the loading cart 10 to the upper part. 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 the baggage 104 has been transported from the luggage compartment 102, the worker releases the connection between the connecting parts 34, 41 and moves the expansion conveyor 40 from the top of the loading cart 10 to the side.

[0045] 10E, the worker moves the dolly 20 toward the outside of the cargo compartment 102 and gradually shortens the extendable conveyor 30. Therefore, 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 the front of the cargo compartment 102 of the truck 101.

[0046] As described above, the transport device 1 according to the first embodiment includes a mounting cart 10 having a mounting 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 which can be placed on the upper part of the mounting cart 10 and has a connecting part 41 which can be connected to an end of the object transport means, and which can form a transport surface together with the accessory transport device by being placed on the upper part of the mounting cart 10 and connecting the end of the object transport means to the connecting part 41 when the accessory transport device moves from a position on the mounting surface 12 to a position outside the mounting surface 12. Therefore, the transport device 1 can move with the accessory transport device mounted as necessary, and a set of equipment used for luggage transport work can be moved at once.

[0047] The conveying device 1 further includes an auxiliary conveying device. The auxiliary conveying device includes a cart 20 having a cart as a moving means, an extendable section 32, a conveyor section 31 as an object conveying means, wheels 33 at the lower part of the extendable section 32, a first end section connectable to the mounting cart 10 by a connecting section 41, a second end section connectable to the cart 20, and an extendable conveyor 30 forming a conveying surface together with the extension conveyor 40 and the unloading auxiliary device 22. Therefore, the conveying device 1 can move the cart 20 and the extendable conveyor 30 as the auxiliary conveying devices, and the extendable conveyor 40 as a set of devices at once. Furthermore, when a trolley 20 having an unloading auxiliary device 22 which is a driven conveyor, an extendable conveyor 30, and an expandable conveyor 40 are used, luggage loaded in the cargo compartment of a truck or the like can be sequentially removed from the front while the conveying surface moves to the back of the cargo compartment, and the luggage can be steadily removed by the driving force of the unloading auxiliary device 22, thereby achieving efficient luggage transport operations.

[0048] The loading cart 10 includes a switching mechanism for switching the expansion conveyor 40 from one state to the other, that is, a state in which the expansion conveyor 40 is disposed under the loading cart 10 and a state in which the expansion conveyor 40 is disposed over the loading cart 10. Therefore, the transport device 1 can easily switch the position of the expansion conveyor 40 to an appropriate arrangement position.

[0049] The transport device 1 includes a height adjustment mechanism that can adjust the height of the transport surface of the extension conveyor 40 when the extension conveyor 40 is placed on the upper part of the loading cart 10. Therefore, the transport device 1 can finely adjust the height of the transport surface of the extension conveyor 40 once placed on the upper part to match the height of the transport surfaces of the cart 20 and the extendable conveyor 30.

[0050] The mounting cart 10 movably supports the auxiliary transport device when the auxiliary transport device moves between a position on the mounting surface 12 and a position outside the mounting surface 12, and includes a slope 51 whose length in the movement direction of the auxiliary transport device is adjustable. Therefore, the transport device 1 can adjust the length of the slope 51 according to the length of a gap generated between a position on the mounting surface 12 and a position outside the mounting 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 to be transported on the transport surface of the expansion conveyor 40 arranged on the upper part of the loading cart 10, from passing through the transport surface of the expansion conveyor 40 and falling. Therefore, the transport device 1 can prevent the object from falling from the expansion conveyor 40.

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

[0053] The loading cart 10 is provided with a stopper lifting device that can raise and lower the fixed stopper 53. Therefore, the transport device 1 can abut the fixed stopper 53 against the ground. In addition, since the transport device 1 has the stopper lifting device, the other end of the loading cart 10 can be in an inclined state in which the other end is in a higher position than the one end, and the worker can relatively easily perform the task of moving the auxiliary transport device from above the loading surface 12 of the loading cart 10 to outside the loading surface 12.

[0054] In addition, in the present disclosure, any of the components of the embodiments may be modified or omitted within the scope of the disclosure. [Explanation of symbols]

[0055] 1. Transport 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 auxiliary 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 the upper part of the first carriage and has a connecting part that can be connected to an end part of the object transport means, and that can form a transport surface together with the auxiliary transport device by connecting the end part of the object transport means to the connecting part when the auxiliary transport device moves from a position on the mounting surface to a position outside the mounting surface; A conveying device characterized by the above.

2. The auxiliary conveying device is further provided. The auxiliary conveying device is 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 a lower portion of the extendable section as the moving means, a first end section connectable to the first conveyor by the connecting section, a second end section connectable to the second cart, 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 includes: A switching mechanism is provided for switching the first conveyor from one state to the other state between 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 includes: a height adjustment mechanism that adjusts 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 includes: The auxiliary transport device is provided with a slope that movably supports the auxiliary transport device when the auxiliary transport device moves between a position on the mounting surface and a position outside the mounting surface, and the length of the slope in the moving direction of the auxiliary transport device is adjustable.

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

6. The conveyor includes an object stopper for preventing an object, which is an object to be conveyed on the conveying surface of the first conveyor arranged on the upper part of the first carriage, from passing through and falling off the conveying surface of the first conveyor.

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

7. The first carriage includes: 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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