JP2010173765A - Cargo carrying apparatus, cargo loading method to cargo compartment of aircraft using the same and cargo unloading method from cargo compartment of aircraft - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cargo carrying apparatus in a simple constitution for improving working efficiency in cargo loading to the cargo compartment of an aircraft and cargo unloading from the cargo compartment of the aircraft, and to provide a cargo loading method for loading a cargo to the cargo compartment of the aircraft using such a cargo carrying apparatus, and a cargo unloading method from the cargo compartment of the aircraft. <P>SOLUTION: This portable cargo carrying apparatus 150 has a mat member 20, an acrylic plate 40 and a plurality of ball members 10 rotatably supported on the acrylic plate 40 and rotating by being driven in response to the movement of the cargo, and is used for carrying the cargo. The mat member 20 is constituted to be collapsible. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cargo transport device, a method of loading an aircraft into a cargo compartment using the same, and a method of unloading from an aircraft cargo compartment.

  The aircraft has a cargo compartment at the bottom of the fuselage, and when loading or unloading cargo into the cargo compartment at the parking lot, a pallet roller and belt are installed at the cargo entry / exit provided in the cargo compartment. These operations are performed using equipment such as a loader.

  From the viewpoint of improving service to users and improving transportation efficiency, it is desirable that these loading and unloading operations be performed efficiently in a short time. Therefore, conventionally, a method and a system for reducing the time required for loading and unloading an aircraft into the cargo compartment and improving the work efficiency have been proposed.

  Patent Document 1 discloses a configuration of an air cargo transportation system that shortens the time for loading cargo on an aircraft.

JP 2002-321699 A

  However, the conventional loading method into an aircraft cargo compartment and the unloading method from an aircraft cargo compartment have the following problems.

  Aircraft cargo compartments can be broadly divided into two types: “container cargo compartments” and “bulk cargo compartments”. A container cargo compartment is a cargo compartment in which containers containing cargo are united and loaded and unloaded in units, while a bulk cargo compartment is a loose cargo that is not stored in a container. A cargo compartment where these cargoes are loaded and unloaded.

  Large and medium-sized aircraft often have both a container cargo compartment and a bulk cargo compartment, but most of the cargo compartments are container cargo compartments and can be used as container cargo compartments due to space limitations. A difficult narrow space (for example, a space having a slope on the tail side at the bottom of the fuselage) is allocated as a bulk cargo compartment.

  On the other hand, since a small aircraft (hereinafter referred to as a small aircraft) has a small size, there is no space for loading containers, and a container cargo compartment cannot be provided. Therefore, in many cases, only a bulk cargo compartment is provided in a small aircraft.

  In the past, large- and medium-sized aircraft have been the mainstream of the air transportation business, but with the recent changes in the environment surrounding the air transportation business, the proportion of air transportation by small aircraft has increased in recent years. This trend is expected to continue.

Therefore, in the future, a system and a method for quickly and efficiently loading and unloading from / to the bulk cargo room will be further demanded.

  However, at present, loading into the bulk cargo compartment and unloading from the bulk cargo compartment are carried out by workers carrying the cargo one by one directly by hand, so that cargo can be loaded and unloaded efficiently. It is hard to say that it is being done.

  For example, when loading cargo into the bulk cargo compartment, first, bulk cargo is put into the cart one by one at the terminal side and transported to the parking lot, and then one by one with the belt loader. Transport to. Workers are waiting in the cargo compartment, and the workers who have been transported to the cargo entry / exit port are directly carried and loaded by the workers in the cargo compartment. As a result, cargo is loaded.

  On the other hand, when unloading cargo from the bulk cargo compartment, the reverse steps to the loading described above are performed. That is, an operator enters the cargo compartment and directly carries the cargo to the cargo entry / exit, and then conveys the cargo from the cargo entry / exit to the parking lot by the belt loader. Thereby, the unloading of the cargo is performed.

  However, when loading into the cargo compartment and unloading from the cargo compartment by this method, the ceiling height of the bulk cargo compartment is low (the ceiling height of many bulk cargo compartments is around 100 cm). Will be forced to work in the middle. In addition, since a physical burden is imposed on the worker, this is one of the factors that hinder the shortening of the time required for loading into the cargo compartment and unloading from the cargo compartment.

  In addition, loading and unloading from the bulk cargo compartment is performed manually, so it is necessary to secure a certain amount of manpower in order to improve work efficiency. There is a problem that a lot of labor costs are required.

  On the other hand, it is conceivable to install cargo transportation equipment such as roller members on the floor of the bulk cargo room, and thereby to load and unload the bulk cargo room. In this case, however, there are the following problems: .

  For example, there is a problem that the installation cost for attaching the cargo transportation facility to the floor is increased, and the production cost of the aircraft is increased. In addition, when maintenance is performed on aircraft, maintenance personnel may enter the bulk cargo room and perform maintenance work. In that case, if cargo transport equipment is installed on the floor, There is a problem that it hinders maintenance work.

  In view of the above situation, the present invention has an object to provide a cargo transport device having a simple configuration that improves the work efficiency of loading and unloading from an aircraft cargo compartment. To do. It is another object of the present invention to provide a loading method for loading an aircraft cargo compartment using such a cargo transport device and an unloading method from the aircraft cargo compartment.

In order to achieve the above object, the present invention provides:
A substrate;
A plurality of rotating bodies that are rotatably supported on the base body and follow and rotate as the cargo moves,
With
A portable freight transport device used to transport freight,
The base is configured to be foldable.

  According to such a configuration, since the cargo transportation device is portable, even if the facility for cargo transportation is not provided, the cargo transportation device can be placed at a desired location to carry the cargo. It can be done easily.

  Therefore, even when cargo is desired to be transported in a narrow space where it is difficult to work, the cargo can be easily transported without providing a cargo transport facility in advance.

  Further, since the base body is configured to be foldable, the cargo carrying device can be carried in a compact state in which the base body is folded.

Moreover, in the above-described cargo transportation device,
The substrate is
It is configured to be foldable in two so that the plurality of rotating bodies are on the inner side of the substantially central portion of the base body,
When the base body is folded in half and viewed in the normal direction of the base body, it is preferable that the rotating bodies are arranged at positions that do not overlap each other.

  According to such a configuration, since the rotating bodies are disposed so as not to overlap each other when the base body is folded in half, the thickness of the cargo transportation device in the folded state can be made compact. Can do. Therefore, it becomes easier to carry the cargo carrying device.

Moreover, in the above-described cargo transportation device,
The rotating body is
It is supported so that the direction of rotation can be changed in a free direction.

  According to such a configuration, since the cargo can be moved in a free direction on the cargo transportation device, it is possible to cope with a case where it is necessary to change the transportation direction of the cargo.

In addition, the method of loading the cargo compartment of the aircraft according to the present invention,
A first loading step for storing the cargo in a transport box;
A second loading step of loading the transport box to the cargo loading / unloading port of the cargo chamber and placing the loaded transport box on the cargo transport device described above, which is laid in the cargo chamber. When,
A third loading step of moving on the cargo transfer device and transferring the transfer box in the cargo compartment;
It is characterized by having.

  According to this method, since the cargo is first stored in the transport box, even when bulk cargo is loaded, it is possible to load in units of transport boxes, and the work efficiency of the loading work is improved. To do.

  In addition, since the cargo transportation equipment described above is used for loading into the cargo compartment of the aircraft, for example, compared to the case where the worker carries the cargo directly by hand and loads it as in the past, for example. , Its working efficiency is improved.

  In addition, when loading into a cargo compartment with a low ceiling height, such as a bulk cargo compartment, if the cargo transportation device described above is used, the operator does not carry the cargo directly by hand, but in the bulk cargo compartment. Since the cargo can be moved, the physical burden on the worker can be reduced, and the work efficiency of the loading work is improved.

In addition, the method of unloading from the cargo compartment of the aircraft according to the present invention,
A first unloading step of transporting the transport box placed on the cargo transport device described above to the cargo port of the cargo chamber by moving the transport box on the cargo transport device;
A second unloading step of unloading the transport box transported to the cargo loading / unloading port;
It is characterized by having.

  According to such a configuration, since the unloading from the cargo compartment of the aircraft is performed using the cargo transportation device described above, for example, an operator directly carries the cargo by hand and unloads it as in the past. Compared to the case, the work efficiency is improved.

  In addition, when unloading from a cargo room with a low ceiling height, such as a bulk cargo room, if the cargo transportation device described above is used, the operator does not carry the cargo directly by hand, Since the cargo can be moved in the vehicle, the physical burden on the worker can be reduced, and the work efficiency of the unloading work is improved.

  As described above, according to the present invention, it is possible to improve the working efficiency of loading an aircraft into a cargo compartment and unloading from an aircraft cargo compartment, and provide a cargo transport device having a simple configuration. Is possible. Furthermore, it is possible to provide a loading method for loading an aircraft into a cargo compartment using such a cargo transport device or an unloading method from an aircraft cargo compartment.

The schematic block diagram of the instrument for cargo conveyance which concerns on 1st Embodiment. The schematic block diagram of the instrument for cargo conveyance which concerns on 2nd Embodiment. The schematic diagram at the time of carrying the instrument for cargo conveyance concerning this invention. The schematic diagram explaining the process of loading and unloading of the cargo based on this invention. The schematic block diagram of the tie-down net | network in this invention.

  The best mode for carrying out the present invention will be exemplarily described in detail below based on the embodiments with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. .

  Here, the cargo transportation device according to the present invention will be described in [First Embodiment] and [Second Embodiment], and the cargo loaded into the cargo compartment of the aircraft according to the present invention will be described in [Third Embodiment]. The unloading method from the cargo compartment of the aircraft according to the present invention will be described in the loading method, [Fourth embodiment].

[First embodiment]
With reference to FIG. 1 and FIG. 3, the freight transfer instrument according to the first embodiment of the present invention will be described.

(Configuration of cargo transport equipment)
In FIG. 1, schematic structure of the instrument for cargo conveyance which concerns on this embodiment is shown. FIG. 1A and FIG. 1B are schematic configuration diagrams in cross-section of a roller unit that holds a plurality of roller members 10 in the cargo transport device according to the present embodiment. Moreover, FIG.1 (c) is a schematic block diagram at the time of seeing the cargo conveyance instrument 150 which concerns on this embodiment from the upper surface.

  The cargo transport device 150 according to the present embodiment includes a plurality of roller units 100 arranged in parallel at a predetermined interval (FIG. 1C). Each roller unit 100 includes a plurality of roller members (rotating bodies) 10 and a roller support member 12 that supports the rotation shaft 11 of each roller member 10 in a state where these roller members 10 are arranged in series. (FIG. 1A, FIG. 1B).

  In addition to the roller unit 100, the cargo transport device 150 includes an acrylic plate 40 that fixes the roller unit 100, and a mat member 20 that is bonded to the lower surface of the acrylic plate 40. In the present embodiment, the mat member 20 corresponds to a base.

  According to such a configuration, by placing the cargo on the roller member 10 and moving the cargo, the roller member 10 is driven to rotate along with the movement of the cargo, and the cargo can be conveyed to a predetermined position. . In addition, the cargo conveyance instrument 150 according to the present embodiment is configured to have a load resistance of about 300 kg at the maximum.

  The acrylic plate 40 has a role of supporting the roller unit 100 and distributing the weight applied to each roller member 10 during cargo transportation. Thereby, it is possible to prevent the weight of the cargo from being locally applied to the mat member 20 during cargo transportation, and to prevent the roller unit 100 from rattling and damage to the floor surface.

  Although details will be described later, the cargo transport device 150 according to the present embodiment is configured to be folded, and the acrylic plate 40 is provided on almost the entire area other than the portion that is folded when the mat member 20 is folded. However, the region where the acrylic plate 40 is provided is not limited to this (FIG. 1C).

  For example, the acrylic plate 40 may be disposed like a rail sleeper at a predetermined interval on the lower surface of the roller units 100 disposed adjacent to each other. In this embodiment, the acrylic plate 40 is used as a member for supporting the roller unit 100. However, instead of the acrylic plate 40, a lighter hard vinyl chloride material or the like may be used.

  In this embodiment, an elastic rubber roller is used as the roller member 10, and the roller support member 12 is formed of a lightweight aluminum alloy. However, the material used for the roller member 10 and the roller support member 12 is not limited to this, and any material that has a load resistance capable of transporting a cargo of up to about 300 kg and satisfies the safety standards of an aircraft. For example, other materials may be used.

  In the present embodiment, the mat member 20 is made of a flame retardant and elastic (flexible) material from the viewpoint of safety, and thus the safety when the cargo transporting instrument 150 is used in the cargo compartment. Can be improved. In addition, it is possible to prevent damage to the floor surface of the cargo compartment when using the cargo transport device 150.

  The cargo transport device 150 according to the present embodiment is configured to be foldable, and is characterized in that it is configured so that an operator can carry it alone in the folded state. FIG. 3B is a schematic diagram when the worker carries the cargo transportation device 150.

The cargo transportation device 150 according to the present embodiment is configured to be folded in half at a substantially central portion. That is, since the acrylic plates 40 are provided on both sides of the mat member 20 with a gap therebetween, the mat member 20 can be folded as a portion for folding the gap (hereinafter, this portion is referred to as a “folded portion”). The folding direction is a direction in which the roller members 10 arranged on both sides of the folded portion come inside the folded portion.

  Furthermore, as shown in FIG.1 (c), the cargo conveyance instrument 150 which concerns on this embodiment is provided with the holding part 21 so that it can carry easily in the folded state. Specifically, holes are formed in the vicinity of both end edges of the mat member 20 and the acrylic plate 40, and the holes are used as the gripping portions 21. When the mat member 20 is folded, the gripping portions 21 (holes) on both sides are overlapped, and the operator carries the freight transfer device 150 by putting the hand into the gripping portion 21 in the folded state. (FIG. 3B).

  Further, when the mat member 20 is viewed in the normal direction with the mat member 20 folded, the roller members 10 disposed on both sides of the folded portion overlap each other. It is arranged on the acrylic plate 40 so as not to be present.

  By disposing the roller member 10 in this manner, the thickness of the cargo transportation device 150 in a state in which the mat member 20 is folded can be reduced, so that the operator can easily carry the cargo transportation device 150. It becomes possible.

(Dimensions / weights / positions of each member)
<Freight Carrying Equipment 150>
The length and width dimensions of the cargo transportation device 150 according to the present embodiment are set to about 1050 mm × 1005 mm. In the following description, the dimension in the cargo conveyance direction (the rotation direction of the roller member 10) is referred to as “length dimension”, and the dimension in the direction orthogonal to the cargo conveyance direction is referred to as “width dimension”.

  The dimensions (length × width) of the acrylic plates 40 arranged on both sides with the bent portion interposed therebetween are about 500 mm × 1005 mm, and the interval between the two acrylic plates 40 is set to about 50 mm. This interval may be set to a dimension that allows the mat member 20 to be folded and does not hinder the conveyance of the cargo (such as the cargo falling into the gap between the two acrylic plates 40).

  In addition, the weight of the cargo transportation device 150 is set to about 15 kg. By setting the weight of the cargo transportation device 150 to about 15 kg or less, an operator can carry the cargo transportation device 150 alone.

<Roller unit 100>
The roller support member 12 provided in the roller unit 100 has a height dimension of 37 mm and a maximum dimension of a width (a length of the roller member 10 in the rotation axis direction) of 40 mm. The height including the mat member 20 and the acrylic plate 40 is set to 50 mm.

  The length of the roller unit 100 is about 500 mm. That is, the roller unit 100 is configured to be disposed almost over the entire length of the acrylic plate 40 (FIG. 1C).

  Further, five roller units 100 are provided on each of the acrylic plates 40 on both sides of the bent portion, and the interval between the roller units 100 arranged on the same acrylic plate 40 is about 200 mm. It is set to ˜250 mm.

The interval between the roller units 100 is determined in consideration of the size of the cargo transported by the cargo transporting instrument 150, the weight of the cargo transporting instrument 150, and the like. Increasing the interval to reduce the number of roller units 100 installed reduces the weight of the cargo transport device 150 and makes it easier to carry. However, if the interval is increased too much, the cargo may be reduced depending on the size of the cargo. There is a risk that the cargo will fall in between and the transportation of the cargo will be delayed.

  In view of such a situation, in the present embodiment, the distance between the roller units 100 provided on the same acrylic plate 40 is set as described above in consideration of the assumed cargo size, the weight of the cargo transporting instrument 150, and the like. It was determined as follows.

  In addition, the roller members 10 provided on both sides of the bent portion are disposed on both sides of the bent portion when viewed from the normal direction of the mat member 20 with the mat member 20 being folded. The roller members 10 are disposed on the acrylic plate 40 so as not to overlap each other. Specifically, as shown in FIG. 1C, the roller members 10 disposed on both sides of the bent portion are disposed so as to be alternately shifted on the left and right.

  According to this, since the roller members 10 disposed on both sides of the folded portion do not interfere with each other when the mat member 20 is folded, the thickness of the cargo transport device 150 in the folded state can be reduced. This makes it easy to carry the cargo carrying device 150.

  Note that the dimensions, weights, and positional relationships of the cargo conveyance device 150 and the roller unit 100 described above are not limited thereto. In the above description, the length and width of the cargo transport device 150 are about 1050 mm × 1005 mm. However, even if the length of the roller unit 100 is about 750 mm, the cargo transport device 150 Can be folded and carried.

  As described above, according to the cargo transportation device according to the present embodiment, the cargo transportation device having a simple configuration that improves the work efficiency of loading and unloading from the cargo space of the aircraft. It becomes possible to provide.

[Second Embodiment]
With reference to FIG. 2 and FIG. 3, a freight transport instrument 250 according to a second embodiment of the present invention will be described. FIG. 2A is a schematic configuration diagram in a cross section of the ball member 30 provided as a rotating body in the cargo transportation device 250 according to the present embodiment. Moreover, FIG.2 (b) is a schematic block diagram at the time of seeing the cargo conveyance instrument 250 which concerns on this embodiment from the upper surface.

  In the first embodiment, the roller member 10 is used as the rotating body. However, the present embodiment is characterized in that the ball member 30 is used as the rotating body. Other configurations (such as the configuration of the acrylic plate 40, the mat member 20, and the gripping portion 21) are not different from those of the first embodiment, and thus the same reference numerals are given and description thereof is omitted.

(Configuration of cargo transport equipment)
As shown in FIG. 2A, the ball unit 300 includes a ball member (rotating body) 30 and a ball support member 31 that rotatably supports the ball member 30. A ball support member 31 is fixed on the acrylic plate 40. In the present embodiment, both the ball member 30 and the ball support member 31 are made of a metal material.

  As shown in FIG. 2B, a plurality of the ball units 300 are arranged on the acrylic plates 40 on both sides with the bent portion interposed therebetween. Further, the cargo carrying device 250 according to the present embodiment has a load resistance set to about 300 kg, as in the first embodiment.

  According to this configuration, the cargo can be transported by placing the cargo on the cargo transport device 250 and moving the cargo on the ball unit 300. In this embodiment, since the ball member 30 is used as the rotating body, the cargo transport direction on the cargo transport device 250 is not limited to one direction.

  That is, since the ball member 30 is supported so as to be able to rotate in a free direction, it is possible to transport the cargo in an arbitrary direction. For example, a cargo that has been transported from a certain direction can be transported in a different direction after changing its direction on the cargo transport device 250.

(Dimensions, weight and position of ball unit 300)
The maximum width dimension of the ball unit 300 is about 70 mm, and the height dimension including the mat member 20 and the acrylic plate 40 is set to about 50 mm. The ball units 300 are arranged on the acrylic plate 40 at intervals of about 200 mm. The size of the mat member 20 is about 1240 mm × 900 mm, and the weight of the cargo transport device 250 is about 15 kg.

  Further, the plurality of ball members 30 disposed on both sides with the bent portion interposed therebetween are disposed at positions that do not overlap each other when the mat member 20 is folded. Thereby, the thickness of the cargo transportation instrument 250 in the folded state can be reduced, and the cargo transportation instrument 250 can be easily carried.

  As described above, according to the present embodiment, it is possible to improve the work efficiency of loading and unloading from an aircraft cargo compartment, and to provide a cargo transport device having a simple configuration. become.

[Third Embodiment]
With reference to FIG. 4, FIG. 5, the loading method to the cargo compartment of the aircraft which concerns on the 3rd Embodiment of this invention is demonstrated. The method for loading an aircraft into a cargo compartment according to the present embodiment is a method for loading an aircraft, particularly into a bulk cargo compartment, using the cargo transportation device according to the first and second embodiments. . This method of loading the aircraft into the bulk cargo compartment is composed of (first loading step) to (third loading step). Hereinafter, each loading step will be described.

(First loading step)
As described above, the bulk cargo compartment is a cargo compartment intended for loose cargo that is not stored in a container, and conventionally, loading was performed in a loose state. The present embodiment is characterized in that loose cargo is stored in a box 50 (conveying box) and loaded into the cargo compartment in that state.

  The pass box 50 used in the present embodiment is formed of a dura plate (aluminum plate), and has dimensions (length × width × height) of about 1200 mm × 770 mm × 1050 mm. Is provided. The material used for the pass box 50 is not limited to the dura plate (aluminum plate), but is selected in consideration of slipperiness with the ball member 30 and the roller member 10, strength, and the like.

  When the passing box 50 having such a configuration is used, it is possible to store the cargo in a loose state in the box 50 and transport the unit as the passing box 50, so that the efficiency of the loading operation is improved.

The operation of storing the cargo in the box 50 is performed on the terminal side. After the cargo is stored in the terminal box 50 on the terminal side, the box 50 is transported to a parking lot by a cart or the like and parked by the belt loader 200. The box 50 is carried into the bulk cargo room 210 from the machine place (FIG. 4). As described above, the first loading step is performed.

(Second loading step)
Next, the worker places the cargo on the cargo transportation device 250 laid in the cargo compartment.

  Note that the cargo carrying device 150 and the cargo carrying device 250 are previously laid on the floor surface in the bulk cargo room by an operator when loading the cargo. In addition, the cargo transport device 150 and the cargo transport device 250 may be those stored in the cargo room as they are after the previous unloading operation, or brought from outside the machine (for example, from the terminal side). But you can.

  The worker carries the cargo transport device 150 and the cargo transport device 250 into the cargo chamber 210 in a state in which they are folded, opens them, and lays them on the floor surface of the cargo chamber 210. In the present embodiment, a cargo transport device 250 including the ball unit 300 is laid near the cargo entry / exit provided in the cargo chamber 210, and the roller unit 100 is provided along the back side of the cargo chamber 210 from there. A freight transfer device 150 is laid.

  According to this, the following effects are produced. As shown in FIG. 4, the bulk cargo compartment 210 is generally provided with a cargo entry / exit on the side of the aircraft body, and cargo is loaded from here. That is, when a cargo is carried in the P direction in FIG. 4 by the belt loader 200 from the parking area, the cargo carried in the P direction is transported in the Q direction when the cargo is transported in the depth direction (Q direction) of the cargo compartment. It is necessary to perform “direction change” such as transport to

  Therefore, by laying a cargo transport device 250 including the ball unit 300 in the vicinity of the cargo loading / unloading port in the bulk cargo chamber 210, it is possible to “redirect” the cargo transported by the belt loader 200. Then, the cargo can be transported to a predetermined position in the cargo compartment 210 by the roller unit 150 following the ball unit 300.

  It should be noted that the number of the cargo transportation device 150 and the cargo transportation device 250 laid on the floor can be appropriately changed according to the size of the cargo room (mainly the length in the axis direction). In addition, in order to perform “change of direction”, it is necessary to lay a cargo transport device 250 equipped with a ball unit 300 at least near the cargo entry / exit. An instrument 250 may be laid.

(Third loading step)
In the second loading step, the pass box 50 placed on the cargo transportation device 250 laid near the cargo loading / unloading entrance is moved to a predetermined position on the cargo transportation device 250 by an operator. .

  Then, the cargo is transported from the cargo transport device 250 onto the cargo transport device 150, and is transported on the cargo transport device 150 by the worker in the depth direction (Q direction in FIG. 4) of the bulk cargo chamber 210. Compared with the case where the worker directly carries the cargo by hand as in the prior art, it is only necessary to move on the cargo carrying device 150, so the physical burden on the worker is reduced and the working efficiency is improved.

  A hammock-shaped tie-down net 220 shown in FIG. 5 is covered on the freight transporting instrument 150 on the passing box 50 transported to a predetermined position in the bulk cargo chamber 210.

The straps 221 provided at both ends of the tie-down net 220 are squeezed by a buckle member (not shown). In this state, the single stud fitting for aircraft provided in the strap 221 is anchored on the floor surface of the bulk cargo chamber 210. Plate
By connecting to (not shown), the pass box 50 can be fixed to the floor surface of the bulk cargo chamber 210.

  In the tie-down net 220, the size of the net portion is set to about 1800 mm × 1200 mm and the length of the strap 221 is set to about 1100 mm so as to cover at least a part of the side surface of the passing box 50. The length of the strap 221 can be adjusted and can be shortened to about 300 mm. Further, the tie-down net 220 has a strength (about 1000 kgs) that can withstand up to 4 G for a 250 kg cargo, for example.

  The tie-down nets 220 may be prepared in the number of at least the number of boxes 50, stored in the bulk cargo room 210, or carried from outside the machine when loading the boxes 50. Good.

  As described above, the bulk cargo can be efficiently loaded into the bulk cargo chamber 210 by performing the third loading step from the first loading step. That is, according to the loading method according to the present embodiment, the cargo is loaded using the cargo transportation device having the simple configuration described in the first and second embodiments. It becomes possible to improve the work efficiency of loading.

[Fourth Embodiment]
A method for unloading cargo from an aircraft cargo compartment according to a fourth embodiment of the present invention will be described. The method of unloading from the cargo compartment of the aircraft according to the present embodiment is a method of unloading from an aircraft, particularly from the bulk cargo compartment, using the cargo transportation device according to the first and second embodiments. The method of unloading from the bulk cargo compartment of this aircraft comprises (first unloading step) to (second unloading step). Hereinafter, each unloading step will be described.

(First unloading step)
The unloading method may be the reverse of the “loading method” described in the third embodiment. That is, first, the tie-down net 220 is removed, and the box 50 is made movable. Then, the pass box 50 is sequentially conveyed to the cargo entry / exit on the cargo conveyance device 150.

(Second unloading step)
The through box 50 transported to the cargo loading / unloading port is unloaded from the cargo transporting device 250 onto the belt loader 200 by the worker, and is unloaded to the parking lot (outside the machine) by the belt loader 200. As a result, the cargo is unloaded.

  After unloading the cargo to be unloaded from the bulk cargo chamber 210, an operator collects the cargo transport device 150 and the cargo transport device 250, folds them, carries them to the storage location, and carries them to the storage location. It can be stored. Note that when the next cargo is loaded immediately after the cargo is unloaded, the cargo transporting devices 150 and 250 may be laid on the floor as they are without being collected.

  As described above, the bulk cargo can be efficiently unloaded from the bulk cargo chamber 210 by performing the second unloading step from the first unloading step. That is, according to the unloading method according to the present embodiment, since the cargo is unloaded using the cargo transportation device having the simple configuration described in the first and second embodiments, it is possible to The work efficiency of unloading can be improved.

[Other Embodiments]
In the first to fourth embodiments, the case where the rotating body unit such as the roller unit 100 and the ball unit 300 is fixed on the acrylic plate 40 has been described. However, these units are not mated to the mat member. 20 may be attached directly.

  The acrylic plate 40 is provided mainly to disperse the load of the cargo. However, if the mat member 20 can carry the cargo without delay in a state where the load is locally applied to the mat member 20, the acrylic plate 40 is acrylic. The structure which does not provide the board 40 may be sufficient.

  In this case, the thickness of the folded cargo transportation devices 150 and 250 can be further reduced, and the operator can further carry them.

  In the first to fourth embodiments, the roller unit 100 and the ball unit 300 are used as the rotating body unit. However, for example, an endless belt member and a plurality of roller members disposed on the inner periphery thereof are provided. Even if the rotating belt unit provided with is used, the same effects as those of the above embodiment can be obtained.

  The roller member that can rotate in one direction is pivotally supported by a support member that can rotate in a horizontal plane so that the roller member can rotate in any direction. For example, a caster member is used as a rotating body. Also good.

10 Roller member (rotating body)
12 Roller support member 20 Mat member 21 Grasping part 30 Ball member (rotating body)
31 Ball support member 40 Acrylic plate 50 Passing box (Transport box)
DESCRIPTION OF SYMBOLS 100 Roller unit 150 Cargo conveying instrument 200 Belt loader 210 Bulk cargo compartment 220 Tie down net 221 Strap 250 Cargo conveying instrument 300 Ball unit

Claims (5)

A substrate;
A plurality of rotating bodies that are rotatably supported on the base body and follow and rotate as the cargo moves,
With
A portable freight transport device used to transport freight,
A cargo transport device, wherein the base body is configured to be foldable. The substrate is
It is configured to be foldable in two so that the plurality of rotating bodies are on the inner side of the substantially central portion of the base body,
2. The rotating body according to claim 1, wherein when the base body is folded in half and viewed in the normal direction of the base body, the rotating bodies are arranged at positions that do not overlap each other. Cargo transport equipment. The rotating body is
3. The cargo transport device according to claim 1, wherein the cargo transport device is supported so that the direction of rotation thereof can be changed in a free direction. In the loading method to the cargo compartment of the aircraft,
A first loading step for storing the cargo in a transport box;
4. The cargo transporting device according to claim 1, wherein the transporting box is loaded to a cargo loading / unloading port of the cargo chamber, and the loaded transporting box is laid in the cargo chamber. 5. A second loading step for mounting;
A third loading step of moving on the cargo transfer device and transferring the transfer box in the cargo compartment;
A method for loading an aircraft cargo compartment. In the method of unloading from the cargo compartment of an aircraft,
A transport box placed on the cargo transport device according to any one of claims 1 to 3 is moved on the cargo transport device and transported to the cargo entry / exit of the cargo chamber. 1 unloading step,
A second unloading step of unloading the transport box transported to the cargo loading / unloading port;
An unloading method from the cargo compartment of an aircraft, comprising:

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