Device for limiting displacement of a container

Abstract

A device for limiting displacement of a container, comprising: a base formed with a long groove; a limiting portion installed on the base so as to be raised with respect to the base or installed on the base so as to be flush with the upper surface of the base with the limiting portion received in the groove, the container moving in a direction intersecting the long direction of the groove of the base, the limiting portion becoming a flat plate when the limiting portion is received in the groove and flush with the upper surface of the base.

Description

TECHNICAL FIELD

[0001] The present application relates to a device for restricting displacement of a container, and more particularly, to a device for restricting displacement of a container in a cargo hold of an airplane. BACKGROUND

[0002] Conventionally, when goods are transported by an airplane, the goods are loaded in a container (a container box or a container plate, etc.) and the container is placed at a fixed position in a cargo hold of the airplane. Also, a device for restricting displacement of the container is provided in the cargo hold of the airplane, which restricts displacement of the container by restricting a bottom plate of the container box or a container plate.

[0003] The device for restricting displacement of the container described above can not only restrict displacement of the container that needs to be restricted in the cargo hold, but also allow the container that does not need to be restricted to pass through smoothly and automatically return to the restricted state after the container passes through.

[0004] The portion for restriction in the container described above is formed in a curved shape so as to catch the container when restricting displacement of the container. However, when the container that does not need to be restricted passes through the device for restricting displacement of the container described above, since the shape for restriction in the container is formed in a curved shape, the container can be caught or can be vibrated when passing through the portion. SUMMARY

[0005] The present application has been achieved in view of the above-described technical problems, and aims to provide a device for restricting displacement of a container, which can not cause vibration or catching even when a container that does not need to be restricted passes through.

[0006] To achieve the above-described object, a first aspect of the present application provides a device for restricting displacement of a container, including: a base formed with a long groove; and a restriction portion installed to the base so as to be raised with respect to the base or to be installed to the base in a manner that the restriction portion is received in the groove and is flush with an upper surface of the base, the container moving in a direction crossing a long direction of the groove of the base, the restriction portion becoming a flat plate when the restriction portion is received in the groove and is flush with the upper surface of the base.

[0007] According to the above-described structure, since the restriction portion becomes a flat plate when the restriction portion is received in the groove and is flush with the upper surface of the base, the container that does not need to be restricted can not be vibrated or caught when passing through the restriction portion. Thus, the container can be prevented from being vibrated or caught when passing through the restriction portion by the simple structure of the restriction portion.

[0008] The device for limiting displacement of the container of the second aspect of the present application is based on the device for limiting displacement of the container of the first aspect of the present application, and the limiting part comprises a first limiting plate and a second limiting plate, one end of the first limiting plate is fixed relative to the long side direction of the groove of the base and can rotate around the short side direction orthogonal to the long side direction, the other end of the second limiting plate reciprocally moves relative to the long side direction of the groove of the base and can rotate around the short side direction, the other end of the first limiting plate is pivotally connected with one end of the second limiting plate, and the first limiting plate and the second limiting plate can be raised in an inverted V shape or be flat with the reciprocating movement of the other end of the second limiting plate relative to the long side direction of the groove of the base.

[0009] According to the above structure, since the limiting part comprises the first limiting plate and the second limiting plate, the first limiting plate is rotatably connected to the base, the second limiting plate is rotatably connected to the base, and the first limiting plate and the second limiting plate are pivotally connected, the limiting part can be converted between flat and inverted V shape.

[0010] The device for limiting displacement of the container of the third aspect of the present application is based on the device for limiting displacement of the container of the second aspect of the present application, and the pivot between the first limiting plate and the second limiting plate extends to the side where the container is located relative to the groove of the base in the short side direction, and the extending part of the pivot to the side where the container is located is sleeved with a limiting roller capable of relative rotation.

[0011] According to the above structure, since the pivot extends to the side where the container is located relative to the pivot between the first limiting plate and the second limiting plate in the short side direction, and the extending part of the pivot to the side where the container is located is sleeved with a limiting roller capable of relative rotation, the displacement of the container in the X direction can be allowed while the container is limited.

[0012] The device for limiting displacement of the container of the fourth aspect of the present application is based on the device for limiting displacement of the container of the third aspect of the present application, and the groove wall of the groove of the base is formed with a receiving hole for receiving the limiting roller.

[0013] According to the above structure, the limiting roller is received in the receiving hole formed in the groove wall of the groove of the base, so that the container that does not need to be limited can be prevented from being hindered by the limiting roller when moving over the first limiting plate and the second limiting plate which become flat.

[0014] The device for limiting displacement of the container of the fifth aspect of the present application is based on the device for limiting displacement of the container of any one of the first aspect to the fourth aspect of the present application, one end of the first limiting plate is connected to the base via a fixed shaft, the other end of the second limiting plate is connected to the base via a rotating shaft, and the fixed shaft and the rotating shaft are connected via an elastic restoring spring.

[0015] According to the above structure, since one end of the first limiting plate and the second limiting plate is connected to the base and the other end is connected via the elastic restoring spring, the limiting portion can be changed into an inverted V shape when the limiting function is performed, and can be changed into a flat plate when the limiting is not needed so that the container can pass, and can be automatically reset after passing. Thus, the limiting portion can be well limited and automatically reset with a simple structure.

[0016] The device for limiting displacement of the container of the sixth aspect of the present application is based on the device for limiting displacement of the container of the fifth aspect of the present application, and a guide hole for reciprocating movement of the rotating shaft in the long direction is formed in the groove wall.

[0017] According to the above structure, since the guide hole for reciprocating movement of the rotating shaft in the long direction is formed in the groove wall, the deformation of the first limiting plate and the second limiting plate can be realized by the reciprocating movement of the rotating shaft in the guide hole.

[0018] The device for limiting displacement of the container of the seventh aspect of the present application is based on the device for limiting displacement of the container of the sixth aspect of the present application, and the guide hole is configured such that, when the limiting portion is changed into a flat plate, the rotating shaft moves to one end of the guide hole, and when the limiting portion is changed into a prescribed angle, the rotating shaft moves to the other end of the guide hole.

[0019] According to the above structure, since the guide hole is configured such that, when the limiting portion is changed into a flat plate, the rotating shaft moves to one end of the guide hole, and when the limiting portion is changed into a prescribed angle, the rotating shaft moves to the other end of the guide hole, the length of the guide hole can be appropriately adjusted in accordance with the deformation requirement of the limiting portion.

[0020] The device for limiting displacement of the container of the eighth aspect of the present application is based on the device for limiting displacement of the container of any one of the first aspect to the fourth aspect of the present application, and a limiting member is formed by protruding the groove wall inward, and the distance of the limiting member from the upper surface of the groove wall is not less than the thickness dimension of the first limiting plate and the second limiting plate.

[0021] According to the above structure, since the limiting part is formed on the groove wall of the groove, and the distance from the upper surface of the groove wall of the limiting part is not less than the thickness dimension of the first limiting plate and the second limiting plate, when the limiting part is formed as a flat plate and is accommodated in the groove of the base, the container can be prevented from being stuck when the container passes over the limiting part.

[0022] The device for limiting displacement of the container according to the ninth aspect of the present application is based on the device for limiting displacement of the container according to the eighth aspect of the present application, and the limiting part is formed to include a plurality of limiting blocks arranged along the long direction.

[0023] According to the above structure, since the limiting part is formed to include a plurality of limiting blocks arranged along the long direction, the limiting part can be made flush with or lower than the upper surface of the groove wall of the groove of the base when the limiting part is formed as a flat plate, by a simple structure. Therefore, the container that does not need to be limited can be prevented from being stuck when the container passes over the limiting part.

[0024] The tenth aspect of the present application provides an airplane in which the device for limiting displacement of the container according to any one of the first to ninth aspects is provided in a cargo compartment of the airplane.

[0025] According to the above structure, since the device for limiting displacement of the container according to any one of the first to eighth aspects is provided in the cargo compartment of the airplane, the container can be smoothly positioned at a prescribed position in the cargo compartment, and the containers can be arranged in the X direction. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 is a schematic view showing the device for limiting displacement of the container according to the first embodiment of the present application.

[0028] Figure 2 is a schematic view showing the state of limiting displacement of the container by the device for limiting displacement of the container according to the first embodiment of the present application.

[0029] Figure 3 is a side view showing the state of limiting displacement of the container by the device for limiting displacement of the container according to the first embodiment of the present application.

[0030] Figure 4Fig. 1 is a schematic view showing a state in which the device for restricting displacement of a container according to the first embodiment of the present application does not restrict the container.

[0031] (Symbol explanation)

[0032] 100 device for restricting displacement of a container;

[0033] 10 base;

[0034] 11 groove bottom;

[0035] 12 groove wall;

[0036] 121 guide hole;

[0037] 122 stopper;

[0038] 123 housing hole;

[0039] 20 stopper portion;

[0040] 21 first stopper plate;

[0041] 22 second stopper plate;

[0042] 23 pivot;

[0043] 24 fixed shaft;

[0044] 241 shaft end portion;

[0045] 242 shaft body;

[0046] 25 rotating shaft;

[0047] 251 shaft end portion;

[0048] 252 shaft body;

[0049] 26 elastic restoring spring;

[0050] 27 stopper roller;

[0051] 3 container;

[0052] 31 bottom plate;

[0053] 32 container box;

[0054] 4 floor. DETAILED DESCRIPTION

[0055] Hereinafter, the present application will be described with reference to Figures 1 to 4 Embodiments of the device for restricting displacement of a container 100 according to the present application will be described. The device for restricting displacement of a container 100 according to the present application is a state for restricting displacement of a container 30 in an aircraft cargo compartment. Figure 1This is a schematic diagram illustrating a device for limiting the displacement of a container according to a first embodiment of the present invention. Figure 2 This is a schematic diagram illustrating the state in which the device for limiting the displacement of a container according to the first embodiment of the present invention limits the displacement of the container. Figure 3 This is a side view showing the state in which the device for limiting the displacement of a container according to the first embodiment of the present invention limits the displacement of the container. Figure 4 This is a schematic diagram showing the state of the container passing over the device for limiting the displacement of the container according to the first embodiment of the present invention.

[0056] In addition, for ease of explanation, in the following Figures 1 to 4 In this paper, the long side direction of the groove of the base 10 is set as the X direction, one side is set as X1 side and the other side is set as X2 side; the short side direction of the groove of the base 10 is set as the Y direction, one side is set as Y1 side and the other side is set as Y2 side; and the depth direction of the groove of the base 10 is set as the Z direction, one side is set as Z1 side and the other side is set as Z2 side.

[0057] The container of the present invention is formed to include a container plate (see reference). Figure 2 This includes structures that fix containers to pallets or structures that directly secure cargo to pallets using safety nets. In the preferred embodiments described below, only structures that fix containers to pallets will be explained.

[0058] Although the following embodiments describe the case where the container is displaced in a direction orthogonal to the long side direction, the invention is not limited thereto, and the container may also be displaced in other directions intersecting the long side direction.

[0059] Furthermore, in the following description, the direction of the long side of the groove of the base 10 is defined as the X direction, the direction of the short side of the groove of the base 10 is defined as the Y direction, and the direction orthogonal to both the X and Y directions is defined as the Z direction.

[0060] (First Implementation)

[0061] like Figure 1 and Figure 2 As shown, the device 100 for limiting the displacement of the container in this embodiment is fixed to a predetermined position in the aircraft cargo hold by a fastener (not shown).

[0062] The device 100 for limiting displacement of the container of the present embodiment includes a base 10 formed in a groove shape including a groove bottom 11 and a groove wall 12, and a limiting portion 20 including a first limiting plate 21, a second limiting plate 22, a pivot 23 pivotally connecting the first limiting plate 21 and the second limiting plate 22, a limiting roller 27 sleeved on the pivot 23, a fixed shaft 24, a rotating shaft 25, and an elastic restoring spring 26 connecting the fixed shaft 24 and the rotating shaft 25.

[0063] Specifically, as shown in Figure 2 and Figure 3 , the limiting portion 20 can limit displacement of the container 3 in the Y direction. In the limiting portion 20, the first limiting plate 21 is in a flat plate shape, one end thereof on the X2 side is rotatably mounted to the base 10 via the fixed shaft 24, the fixed shaft 24 is formed to include a shaft body 242 located in the groove of the base 10 and shaft end portions 241 located at both ends of the groove of the base 10 in the Y direction, the diameters of the shaft end portions 241 are larger than that of the shaft body 242, and fixing holes (not shown) for mounting the fixed shaft 24 are respectively formed in the groove walls 12, the shaft end portions 241 of the fixed shaft 24 are exposed to the outer surfaces of the groove walls 12 and abut against the outer surfaces.

[0064] The second limiting plate 22 is in a flat plate shape, is rotatably mounted to the base 10 via the rotating shaft 25, and one end thereof on the X1 side is mounted to the base 10 via the rotating shaft 25. The rotating shaft 25 is formed to include a shaft body 252 located in the groove of the base 10 and shaft end portions 251 located at both ends of the groove of the base 10 in the Y direction, the diameters of the shaft end portions 251 are larger than that of the shaft body 252. Fixing holes (not shown) for mounting the rotating shaft 25 are respectively formed in the groove walls 12, the shaft end portions 251 of the rotating shaft 25 are exposed to the outer surfaces of the groove walls 12 and abut against the outer surfaces.

[0065] It should be noted that although the first limiting plate 21 can rotate around the fixed shaft 24 and the second limiting plate 22 can rotate around the rotating shaft 25, the position of the fixed shaft 24 in the long side direction (i.e., the X direction) relative to the groove walls 12 is fixed, and the position of the rotating shaft 25 in the long side direction (i.e., the X direction) relative to the groove walls 12 is movable.

[0066] In addition, one end of the first limiting plate 21 on the X1 side and one end of the second limiting plate 22 on the X2 side are connected via the pivot 23, both can rotate around the pivot 23, and the limiting roller 27 is sleeved on the part of the pivot 23 that protrudes to the Y1 side beyond the two limiting plates, the limiting roller 27 can rotate around the pivot 23.

[0067] Specifically, as shown in Figure 1As shown, long circular guide holes 121 are formed in the groove walls 12 respectively, and the shaft body 252 of the rotating shaft 25 passes through the guide holes 121 and the shaft end 251 is exposed to the outer surface of the groove wall 12 and abuts against the outer surface. The rotating shaft 25 is installed in the base 10 in a manner that it can move along the X direction in the guide holes 121. The elastic restoring spring 26 is connected between the fixed shaft 24 and the rotating shaft 25.

[0068] In the initial state, as shown, Figure 2 under the action of the elastic restoring spring 26, the first limiting plate 21 and the second limiting plate 22 are in inverted V-shaped elevation, and the included angle therebetween is 60 degrees. At this time, if the container 3 on the floor 4 moves along the Y direction to the device 100 for limiting the displacement of the container, the Y2 side edge of the bottom plate 31 of the container 3 will enter the space between the limiting roller 27 and the floor 4, thereby limiting the displacement of the container 3 in the Y direction.

[0069] In addition, as shown, Figure 3 the limiting roller 27 and the floor 4 can also limit the position of the bottom plate 31 of the container 3, thereby limiting the displacement of the container 3 in the Z direction.

[0070] That is, when the first limiting plate 21 and the second limiting plate 22 of the limiting portion are in inverted V-shaped elevation, the displacement of the container 3 in the Y direction and the Z direction can be simultaneously limited by the limiting portion 20.

[0071] In addition, in the case where the bottom plate 31 of the container 3 enters the space between the limiting roller 27 and the floor 4, as shown, Figure 3 the limiting roller 27 contacts the bottom plate 31 and drives the bottom plate 31 to move along the X direction by rotating. In this way, the displacement of the container 3 in the Y direction can be limited while the container 3 is arranged in the X direction.

[0072] In addition, as shown, Figure 1 corresponding to the opposite inner surfaces of the two groove walls 12, two limiting blocks 122 arranged in the X direction are formed, i.e. a total of four limiting blocks 122 are formed. These limiting blocks 122 are arranged at the same interval in the X direction (i.e. the long side direction of the groove of the base 10), and the distance from the upper surface of the groove of the base 10 in the Z direction is less than the thickness dimension of the first limiting plate 21 and the second limiting plate 22. In this way, when the first limiting plate 21 and the second limiting plate 22 are pressed from the Z1 side as shown, Figure 4 the lower surfaces of the first limiting plate 21 and the second limiting plate 22 abut against the four limiting blocks 122 to be accommodated in the groove of the base 10. In this way, the first limiting plate 21 and the second limiting plate 22 become a whole flat plate, and the upper surfaces thereof are flush.

[0073] At this time, as shown, Figure 4As shown, without the need to limit the displacement of the container 3, the operator presses the first limiting plate 21 and the second limiting plate 22 downward from the pivot 23 to make them into a whole flat plate. At this time, the limiting roller 27 is accommodated in the accommodating hole 123 formed in the groove wall 12. That is, the upper surface of the whole limiting portion 20 is flush with the upper surface of the groove of the base 10, and the upper surface of the bottom plate 31 of the container 3 is flush with the upper surface of the groove wall of the base 10. In this way, the container 32 on the bottom plate 31 will smoothly pass over the surface of the first limiting plate 21 and the second limiting plate 22. Since the first limiting plate 21 and the second limiting plate 22 become a whole flat plate at this time, the container 32 will not be fluctuated or jammed when passing over. Moreover, after the container 32 passes over, the first limiting plate 21 and the second limiting plate 22 are automatically restored to the inverted V shape under the restoring force of the elastic restoring spring 26. Figure 2 the inverted V shape.

[0074] (Technical effects of the first embodiment)

[0075] When the container 3 passes over the limiting portion 20 along the Y direction as described above, the first limiting plate 21 and the second limiting plate 22 become a whole flat plate and are accommodated in the groove of the base 10, so that the container 3 will not be fluctuated or jammed during the process of passing over the limiting portion 20. Thus, fluctuation or jamming of the container 3 can be avoided by a simple structure.

[0076] When the displacement of the container 3 is limited by the raised limiting portion 20, the limiting roller 27 limits the displacement of the container 3 in the Y direction and the Z direction while allowing the container 3 to move in the X direction. Thus, a plurality of containers 3 can be arranged in the X direction.

[0077] Moreover, since the first limiting plate 21 and the second limiting plate 22 are connected via the elastic restoring spring 26, after the container 3 passes over the first limiting plate 21 and the second limiting plate 22 which become a whole flat plate, the elastic restoring spring 26 can automatically restore the first limiting plate 21 and the second limiting plate 22 to the inverted V shape. Thus, manual operation can be made simpler.

[0078] The technical solutions of the embodiments of the present application are described clearly and completely in combination with the drawings in the embodiments of the present application, in order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0079] Four limit blocks are exemplified in the above embodiment, but the present application is not limited thereto, and other number of limit blocks can be used, and the limit blocks can be arranged in other ways.

[0080] In the above embodiment, the limit member is formed in a block shape, but the present application is not limited thereto, and can be formed in other shapes.

[0081] In the above embodiment, the first limit plate and the second limit plate are raised in an inverted V shape to achieve the effect of limiting displacement, but the present application is not limited thereto, and can be raised in other shapes to achieve the effect of limiting displacement.

[0082] In the above embodiment, the included angle between the first limit plate and the second limit plate when the Y-direction limiting action is exerted is 60 degrees, but the present application is not limited thereto, and can be other degrees.

Claims

1. A device for limiting the displacement of a container, comprising: A base having an elongated groove; A limiting part is mounted on the base in a manner that allows it to protrude relative to the base or be housed in the groove and flush with the upper surface of the base. The container moves along a direction that intersects the long side of the groove in the base. Its features are, When the limiting part is housed in the groove and flush with the upper surface of the groove, the limiting part becomes a flat plate. The limiting part includes a first limiting plate and a second limiting plate. One end of the first limiting plate is fixed relative to the long side of the groove in the base and can rotate around the short side orthogonal to the long side. The other end of the second limiting plate reciprocates relative to the long side of the groove in the base and can rotate around the short side. The other end of the first limiting plate is pivotally connected to one end of the second limiting plate. The first limiting plate and the second limiting plate can be raised in an inverted V shape or become flat as the other end of the second limiting plate moves back and forth relative to the long side of the groove of the base.

2. The device for limiting the displacement of a container as described in claim 1, characterized in that, The pivot between the first limiting plate and the second limiting plate extends in the short-side direction relative to the groove of the base toward the side where the container is located. A limiting roller capable of relative rotation is fitted onto the protruding portion of the pivot extending toward the side where the container is located.

3. The device for limiting the displacement of a container as described in claim 2, characterized in that, The groove wall of the base has a receiving hole for receiving the limiting roller.

4. The device for limiting the displacement of a container as described in any one of claims 1 to 3, characterized in that, One end of the first limiting plate is connected to the base via a fixed shaft. The other end of the second limiting plate is connected to the base via a rotating shaft. The fixed shaft and the rotating shaft are connected by an elastic restoring spring.

5. The device for limiting the displacement of a container as described in claim 4, characterized in that, Guide holes are formed on the groove walls of the groove to allow the rotating shaft to reciprocate in the long side direction.

6. The device for limiting the displacement of a container as described in claim 5, characterized in that, The guide hole is configured such that when the limiting part is deformed into a flat plate, the rotating shaft moves to one end of the guide hole, and when the limiting part is deformed into a predetermined angle, the rotating shaft moves to the other end of the guide hole.

7. The device for limiting the displacement of a container as described in any one of claims 1 to 3, characterized in that, A limiting component is formed by protruding inward from the groove wall of the groove, and the distance between the limiting component and the upper surface of the groove wall is not less than the thickness of the first limiting plate and the second limiting plate.

8. The device for limiting the displacement of a container as described in claim 7, characterized in that, The limiting component is formed by including multiple limiting blocks arranged along the long side direction.

9. An aircraft, characterized in that, The aircraft is provided with a device for limiting the displacement of a container as described in any one of claims 1 to 8 in its cargo hold.

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