JP4636993B2 - Air cargo small container - Google Patents

Description

  The present invention relates to a small container for air freight suitable for loading air freight as a unit and loading it into a bulk cargo compartment of an aircraft.

Recently, aircraft that are in service on domestic flights have become smaller in size, and large-scale container aircraft with wide cargo compartments (wide-body aircraft-B4, B7, B6, etc.), bulk cargo machines with a narrow cargo compartment (narrow) It has been switched to the body-B3). In a large container machine, as shown in FIG. 11, a ball mat type moving device 2 and a roller conveyor device 3 are laid on the floor of the main cargo compartment 1, and a large container 4 containing air cargo is attached to the floor surface. The ball is slid on the ball or roller and is sequentially loaded in the cargo compartment 1. On the other hand, in a small bulk machine, individual cargoes are loaded directly into the cargo compartment and transported by air.
JP 2004-315071 A

  By the way, since small bulk machines are bulk-stacked, if the cargo is precision parts or valuables, there is a high risk of getting damaged or damaged. There is also a problem that it is easy to load together. Therefore, in the bulk machine, it is conceivable that precision parts and valuables are stored together in a dedicated in-house container and mounted in the cargo compartment as necessary.

  However, in the bulk machine described above, since the doors of the bulk cargo room are also small, it is not possible to use a large existing container as it is in accordance with the wide body machine and mount it in the bulk cargo room. Therefore, it may be possible to reduce the size of the existing container for the wide-body machine according to the cargo compartment door of the bulk machine. Conventionally, however, the bulk cargo space of bulk machines has a relatively low ceiling height while the existing container for wide-body machines is simply reduced in size, while the floor structure slides the container and moves such as a ball mat. Because it is not structured, it takes a lot of time and labor to carry a heavy container that contains cargo in bulk, carrying it to the back of the cargo compartment and mounting it in place. There was a problem that it took.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a small container for air cargo that can be easily and easily mounted in a cargo room of a small bulk machine that loads air cargo in a bulk loading manner.

Therefore, in order to achieve the above object, the invention described in claim 1 is configured such that, for example, as shown in the embodiment described below with reference to the drawings, the upper lid 11 is opened and closed to collectively store a plurality of air cargo. The box B to be fixed is fixed on the carriage T, and is loaded into a bulk cargo room having a floor structure in which no balls or rollers are laid on the floor surface F, moved on the floor surface, and placed at a predetermined mounting position. A small container C for air freight, wherein the carriage T includes a carriage 15 and caster position adjusting means R for moving and adjusting the height position of the caster 16 with respect to the carriage 15. Is composed of a bottom plate 17 that defines the bottom surface of the carriage T and a frame 18 that is fixedly assembled to the bottom plate 17. The caster position adjusting means R is assembled to the frame 18, while the caster position adjusting means R is assembled to the bottom plate 17. The caster 16 enters and exits That the caster hole 17a provided, the caster position adjusting means R is the underframe rotatable parallel camshafts that Jikuka between opposed frame member such as a transverse frame member 19, 20 of the frame body 18 in the 15 25, a cam 30 having a proximal end 30a fixed on the cam shaft 25 and a convex cam surface 30b formed on the distal end side, and the caster 16 attached downward so that the proximal end side is rotated to the frame 15 A rotating plate 40 which is mounted so as to be movable, and a cam pressing plate portion 40a on the distal end side is disposed on the lower side of the cam 30 so that the caster 16 is mounted so as to be able to roll. A compression spring 45 that is sandwiched between a part of the frame 15 and urges the rotation plate 40 in a direction to press the cam 30 by the cam pressing plate portion 40a; A cam rotation operation unit that is attached to the shaft end and rotates the cam 30 from the outside of the frame member. And a 35, when carrying a predetermined mounting position by moving the bulk cargo compartment floor above one direction the cam 30 by operating the cam rotation operation member 35 of the caster position adjusting means R The rotating plate 40 is rotated while the cam pressing plate portion 40a is pushed down against the compression spring 45 by the convex cam surface 30b, and the caster 16 is moved from the bottom surface t of the carriage T. When the caster hole 17a is lowered from the upper standby height position to the working height position protruding downward from the bottom surface t of the carriage T and placed at a predetermined mounting position, the cam rotation operation member 35 is operated. When rotating the cam 30 in the other direction Te, the risen through the caster hole 17a in the rotation plate 40 original standby height position of the caster 16 rotates with the spring force of the compression spring 45 truck Store in T That one, characterized Rukoto such by the bottom plate 17 so as not move directly placed on the floor.

  The invention according to claim 2 is a small container for air freight according to claim 1, for example, as shown in an embodiment described below with reference to the drawings, in the cart T, On the outside of the frame material on which the cam rotation operation member 35 is disposed, an accommodation recess 19a for accommodating the cam rotation operation member 35 is formed, while the caster position adjusting means R connects the cam shaft 25 to the pipe material. The connecting shaft 26 is slidably fitted to the shaft end 25a of the cam shaft 25 on the side where the cam rotating operation member 35 is attached, and the cam rotating operation member 35 is connected to the cam shaft 25 via the connecting shaft 26. The cam shaft 25 is attached to the cam shaft 25, and one of the cam shaft 25 and the connecting shaft 26 is provided with a long hole 31 in the axial direction, and the other is provided with a stopper pin 27. The elongated hole 31 and the stopper pin 27 are engaged with each other. Let Thus, the connecting shaft 26 is connected to the cam shaft 25 in the circumferential direction so as to be integrally rotatable, and the connecting shaft 26 is operated to rotate the cam shaft 25 in the axial direction. It is characterized in that the member 35 is connected so as to be able to reciprocate between an accommodation position where the member 35 is accommodated in the accommodation recess 19a and a rotation operation position pulled out from the accommodation recess 19a.

  According to the first aspect of the present invention, (1) the cam rotation operation member is rotated to move and adjust the height position of the caster, and the air cargo small container is loaded after the air cargo is loaded, for example, The caster is raised to a standby height position above the bottom of the carriage and stored in the carriage until it is transported to the bulk loading compartment of the machine, and then, for example, from the cargo compartment door to the bulk loading compartment. When carrying in, the caster is lowered to the working height position that protrudes downward from the bottom of the carriage, so that the container can be moved on the floor surface in the cargo compartment by rolling the caster. Even in a cargo room with a floor structure with a low ceiling and no ball mat or the like, it can be easily carried and loaded into the back of the cargo room without any trouble. (2) Even if the air cargo is a precision part or valuables, it can be stored in its own container and mounted in the bulk cargo room of the bulk machine. The risk of damage or damage can be eliminated, and the occurrence of adverse effects such as the freight of a competitive transport company being mixed can be prevented.

  According to the second aspect of the present invention, the cam rotation operating member is housed in the receiving recess of the carriage except when the caster is lowered to the working height position and the container is moved in the cargo compartment. It is also possible to prevent the moving operation member from protruding from the container, thereby preventing damage or damage to the equipment or the like of the cargo compartment due to this protrusion.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a small container for air freight which is an example of the present invention in an exploded manner into a box and a cart, and FIG. 2 is a plan view showing the cart. The small container C for air freight includes a box B for storing a plurality of air freights therein and a carriage T on which the box B is mounted and fixed.

  Box B is made of plastic corrugated cardboard, which is lightweight but rich in strength and water resistance. The box body 10 is a rectangular box that is slightly horizontally long in the left and right direction in the figure and the upper opening of the box body 10 is opened and closed. And an upper lid 11 to be made. The box body is reinforced by fitting a metal frame 12 to the upper edge of the upper side of the upper opening, and resin handles 13 are fitted to the front, rear, left and right side plate portions. The upper lid 11 has elongated bent pieces on the left and right and front and rear four side edges, and these bent pieces are fitted into the upper opening and closed, and a resin latch 14a attached to the front bent piece 11c is provided. The box body 10 is locked by being locked to the resin hook 14b.

  The carriage T is entirely made of metal, and has a structure including a frame 15 and a pair of caster position adjusting means R on the left and right in the drawing for adjusting the height position of the caster 16 relative to the frame 15. .

  The underframe 15 includes a bottom plate 17 that defines the bottom surface of the carriage T, and a rectangular frame 18 that is fixed and assembled on the bottom plate 17. The bottom plate 17 is formed with round caster holes 17a at symmetrical positions near the four corners. The frame 18 includes an outer frame portion composed of horizontal frame members 19 and 20 facing front and rear in the figure and vertical frame members 21 and 21 facing left and right, and two vertical and horizontal reinforcing frame members 22 and 23 in the outer frame portion. It is formed with a reinforcing frame part that is crossed and incorporated in a well shape. A resin handle 24 is fitted to the outer frame portion with a gap. In this outer frame portion, the front side (front side) horizontal frame member 19 is provided with an accommodation recess 19a between the outer handles 24 for accommodating a cam rotation operation member 35 described later. The base frame 15 is assembled so that the overall vertical and horizontal frame size is slightly smaller than the vertical and horizontal box size of the box B, and the outer frame portion of the carriage T does not protrude outward from the box B (see FIGS. 9 and 10). ).

  As shown in FIGS. 1 and 2, the right and left caster position adjusting means R penetrates a pair of cam shafts 25 between the horizontal frame members 19 and 20 of the base frame 15 and the two horizontal reinforcing frame members 23. Thus, the shaft is rotatably mounted in parallel with the vertical frame member 21. The cam shaft 25 in the illustrated example is made of a pipe material, and the cams 30 are screwed onto the shafts beside the caster holes 17a. As shown in FIG. 3A, the cam 30 has a cam piece shape that protrudes from the proximal end 30a through which the cam shaft 25 penetrates toward the distal end, and the cam surface 30b is rounded at one corner of the distal end. It has a formed structure. Therefore, the cam shaft 25 is provided with a lever-type cam rotation operation member 35 having a rubber grip 35a for rotating the cam 30 from the outside to the front shaft end 25a on the side of the horizontal frame member 19. , Attached in a direction parallel to the cam 30.

  Therefore, as shown in FIG. 3B, the camshaft 25 is slidably fitted with a connecting shaft 26 to a hollow front shaft end 25a, and a cam rotating operation member 35 shaft is connected to the tip of the connecting shaft 26. The part 35 a is attached via the connecting member 29. Further, a long hole 31 that is long in the axial direction is provided at the front shaft end 25 a of the cam shaft 25. The long hole 31 is formed to a predetermined length that regulates a length range in which the connecting shaft 26, that is, the cam rotation operation member 35 slides in the axial direction with respect to the cam shaft 25. On the other hand, the connecting shaft 26 fitted to the front shaft end 25 a is erected in advance by screwing a screw-type stopper pin 27 at the tip, and the stopper pin 27 is engaged with the elongated hole 31 to be cam shaft 25. It is linked to. Then, in the caster position adjusting means R, the connecting shaft 26 with respect to the cam shaft 25, and in the axial direction, as shown in FIG. As shown in FIG. 3 (C), it is connected so as to be reciprocally movable within a predetermined length range from the rotational operation position pulled out from the housing recess 19a. It has a connected structure. As shown in FIGS. 4 and 5, the receiving recess 19 a of the underframe 15 is provided with a holding tool 28 that is detachably held with the shaft portion 35 b interposed when the cam rotation operation member 35 is received. Yes. The holder 28 has a pair of leaf spring members 28a on the housing recess 19a, and a cam rotation operation member 35 with a shaft portion 35b interposed between rubber rollers 28b rotatably attached to the distal ends of the leaf spring members 28a. It is the structure which holds detachably.

  Furthermore, as shown in FIGS. 1 and 2, the left and right caster position adjusting means R have casters 16 attached to the rotating plate 40, respectively. As shown in FIG. 6, the caster 16 shown in FIG. 6 is pivotally supported by the mounting bracket 33, but the mounting bracket 33 itself is rotatably attached to the rotating plate 40 so that the direction can be changed. Yes. The rotating plate 40 is formed by bending the tip of a horizontally long metal plate into an L plate shape to form a cam pressing plate portion 40a, and a compression spring 45 is arranged side by side on the mounting plate surface to which the casters 16 are attached. Has been established. Then, the rotating plate 40 has the caster 16 and the compression spring 45 facing downward, and the base end 40b is rotatably attached to the vertical reinforcing frame member 22 of the base frame 15 via a hinge 50. The cam pressing plate portion 40a is disposed on the lower side of the cam 30 so that the caster 16 faces downward from the caster hole 17a, and the compression spring 45 is sandwiched between the bottom plate 17 of the base frame 15. Therefore, the rotating plate 40 is always urged to rotate in the direction in which the cam pressing plate portion 40a is pressed against the cam 30 by the spring force of the compression spring 45, whereby the cam pressing plate portion 40a on the distal end side is camped. It is held in a state where it is pressed against 30 and stopped. In this case, in the caster position adjusting means R, when the cam rotation operation member 35 is tilted sideways and the cam 30 is also laid sideways, the caster 16 is on standby above the base frame 15, that is, the bottom surface t of the carriage T. It is stored and supported in the carriage T at a height position.

  Therefore, in the caster position adjusting means R, as shown by an arrow in FIG. 7, the cam rotation operating member 35 is rotated in one direction and is raised, and the cam 30 is rotated accordingly. The rotating plate 40 rotates while pushing the pressing plate portion 40a against the compression spring 45, and the caster 16 starts to descend accordingly. Therefore, as shown in FIG. 8, when the cam rotation operation member 35 is further rotated in the same direction until it stands upright and the cam 30 is raised, the cam pressing plate portion 40a is further pushed down by the cam surface 30b accordingly. By rotating the rotating plate 40, the caster 16 is lowered to the working height position protruding downward from the bottom surface t of the carriage T through the caster hole 17a. On the other hand, when the cam rotating operation member 35 in the upright state is rotated in the opposite direction to tilt the cam 30, the rotating plate 40 is rotated in the same direction by the spring force of the compression spring 45. The caster 16 is configured such that the height position of the caster 16 can be adjusted so that the caster 16 returns to the original standby height position above the bottom surface t of the carriage T through the caster hole 17a.

  The box B is mounted on the frame 15 with the caster position adjusting means R assembled as described above, and fixed with screws or the like. As a result, as shown in FIG. It is assembled to a size that can pass through the bulk cargo doorway.

  Now, in the airport, when the cargo is loaded using such a small container C for air cargo, for example, when it is mounted in a bulk cargo room of a bulk machine, the upper lid 11 of the box B is opened, and the box main body is opened. After the cargo is stored and loaded together in the container 10, the container C is put on a container dolly, a cargo loader or the like and carried to the bulk cargo room. At this time, the container C rotates the cam rotation operation member 35 to tilt the cam 30 sideways, pushes up the cam pressing plate portion 40a of the rotation plate 40, and moves the caster 16 to the bottom surface t of the carriage T. The movement is adjusted by raising it to a higher standby height position, and it is stored in the cart T. Further, the cam rotation operation member 35 holds the shaft portion 35b with the holding tool 28 so that the grip portion 35a does not hang down due to an impact or the like during the handling operation or is pulled out of the housing recess 19a. In the receiving recess 19a.

  Next, when the cargo compartment door is opened and the container C is loaded into the bulk cargo compartment from the entrance, the cam rotation operation member 35 is pulled out from the accommodation recess 19a as shown in FIG. 3B or FIG. 10 is turned upright in the direction shown by the arrow in FIG. 10 to erect the cam 30 in the same manner, and the rotating plate 40 is pushed while the cam pressing plate portion 40a is pushed down against the compression spring 45 by the convex cam surface 30b. The caster 16 is lowered to a working height position protruding downward from the bottom surface t of the carriage T through the caster hole 17a. Thus, the height position is adjusted so that the small container C for air cargo of the present invention can be moved on the floor F of the cargo compartment by rolling the casters 16.

  Thereafter, the container C is moved while rolling the caster 16 on the floor surface F, and is carried to the back side of the bulk loading cargo room and carried into a predetermined loading position. After carrying in, the container C, in this loading position, turns the upright cam turning operation member 35 in the direction indicated by the arrow in FIG. 40 is rotated to raise the caster 16 and return to the original standby height position. Then, the caster 16 is returned to the state stored in the cart T, and the container C is placed directly on the floor surface F so as not to move at the predetermined mounting position. When the container C is moved in the cargo compartment, since the metal cart T does not protrude structurally outward from the box B, the cart T hits and damages or damages the equipment in the cargo compartment. To prevent that.

It is a perspective view which decomposes | disassembles and shows the small container for air cargo of this invention in a box and a trolley | bogie. It is a top view which shows the trolley | bogie of the small container for air cargo. It is a perspective view which shows the rotation structure and slide structure with respect to the cam shaft of a cam rotation operation member. It is a perspective view which shows a part of trolley | bogie in the state which accommodated the cam rotation operation member in the accommodation recessed part. It is a perspective view which shows a part of trolley | bogie in the state which pulled the cam rotation operation member from the accommodation recessed part to the rotation operation position. It is a partial longitudinal cross-sectional view of the trolley | bogie which shows the structure of a caster position adjustment means in the state which has a caster in a stand-by height position. It is a partial longitudinal cross-section of the trolley | bogie which shows the structure of a caster position adjustment means in the state in which the caster is moving. It is a partial longitudinal cross-sectional view of the trolley | bogie which shows the structure of a caster position adjustment means in the state which has a caster in an action height position. It is a front view which shows the small container for air cargo in the state which stored the caster in the trolley | bogie. It is a front view which shows the small container for air cargo in the state which made the caster partly protrude from the trolley | bogie. It is a description perspective view which shows the aircraft cargo compartment which mounts the conventional large container for air cargo.

Explanation of symbols

B Box C Small container for air cargo T Cart R R Caster position adjusting means 15 Base frame 16 Caster 19a Housing recess 25 Cam shaft 26 Connecting shaft 30 Cam 30b Cam surface 35 Cam rotating operation member 40 Rotating plate 40a Cam pressing plate 45 Compression spring

Claims (2)

A box for storing a plurality of air cargoes in the inside by opening and closing the top lid is fixed on the carriage, and is loaded into a bulk cargo room with a floor structure in which balls and rollers are not laid on the floor surface. moving on a small containers for air freight you placed at the predetermined mounting position,
The carriage includes a carriage and caster position adjusting means for moving and adjusting the height position of the caster relative to the carriage.
The underframe includes a bottom plate that defines a bottom surface of the carriage, and a frame that is fixedly assembled to the bottom plate. The caster position adjusting means is assembled to the frame, and the caster enters and exits the bottom plate. Caster holes to be
The caster position adjusting means includes a parallel cam shaft that is rotatably supported between opposing frame members of the frame body in the frame, and a cam that has a proximal end fixed on the cam shaft and has a convex shape on the distal end side. a cam forming a surface, attached downwardly to attaching a base end side of the caster rotatably the underframe, disposed to overlap the cam pressing plate portion of the front end side to the lower side of the cam the A rotating plate on which a caster is rotatably mounted, and the rotating plate is sandwiched between the rotating plate and a part of the base frame so that the cam pressing plate portion presses the cam. A compression spring that is urged to rotate, and a cam rotation operation member that is attached to the shaft end of the cam shaft and rotates the cam from the outside of the frame member;
When the cam is rotated in one direction by operating the cam rotation operation member of the caster position adjusting means when moving on the floor surface in the bulk cargo room and carrying it to a predetermined loading position, the convex shape The rotating plate rotates while pushing down the cam pressing plate portion against the compression spring on the cam surface, and the caster protrudes downward from the bottom surface of the cart from the standby height position above the bottom surface of the cart. When the cam rotating operation member is operated and the cam is rotated in the other direction when it is lowered through the caster hole to the working height position and placed at a predetermined mounting position, the spring force of the compression spring while stored in the carriage rotating plate rotates to rise through the caster hole original standby height position of the caster, that do so as not move directly put the bottom plate on the floor Small for air cargo, characterized by Container. In the bogie,
On the outside of the frame, on the outside where the cam rotation operation member is disposed, an accommodation recess for accommodating the cam rotation operation member is formed.
The caster position adjusting means includes
The cam shaft is formed of a pipe material, and a connecting shaft is slidably fitted to a shaft end of the cam shaft on the side where the cam rotating operation member is attached, and the cam rotating operation member is inserted through the connecting shaft. Attaching to the camshaft,
Either one of the cam shaft and the connecting shaft is provided with a long hole in the axial direction, a stopper pin is provided on the other, and the long hole and the stopper pin are engaged with each other in the circumferential direction with respect to the cam shaft. The connecting shaft is connected so as to be integrally rotatable, and in the axial direction, the connecting shaft is pulled out of the housing recess, the housing position where the cam rotation operation member is housed in the housing recess, and the cam shaft. The small container for air freight according to claim 1, wherein the container is configured to be reciprocally movable between the rotating operation positions.

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