WO2014119933A1

WO2014119933A1 - Container comprising corner member incorporating lock unit

Info

Publication number: WO2014119933A1
Application number: PCT/KR2014/000861
Authority: WO
Inventors: 황세인; 서병륜
Original assignee: 주식회사 밴플러스; 한국파렛트풀 주식회사
Priority date: 2013-01-29
Filing date: 2014-01-29
Publication date: 2014-08-07

Abstract

The present invention relates to a container, being a freight transporting container comprising: a corner member which is a member disposed in a lower corner of the container and comprises an inner space and a bottom-surface hole constituting a hole formed in the bottom end part thereof so as to connect through to the inner space; and a lock unit which is a unit used to fasten a pair of containers that are adjacent to each other when containers are stowed in multiple levels, is able to move position between a housing position where same is housed in the inner space of the corner member and a use position where same projects to the outside via the bottom-surface hole of the corner member, and fastens the pair of containers to each other in the use position. According to the present invention, in contrast to conventional containers in which container-fastening devices have to be stored separately apart from the containers, the present invention is advantageous in that the locking unit can be housed in the inner space of the corner member, and the locking unit is easily stored and is not at risk of being lost during storage.

Description

Container with corner member with locking unit

The present invention relates to a container, and more particularly, to a container in which the locking unit can be stored in the inner space of the corner member, so that the storage of the locking unit is convenient and there is no fear of losing it during storage.

Freight container (freight container) is a steel container of a rectangular parallelepiped that is frequently used for maritime cargo transportation, as shown in Figure 1, multiple containers (C1, C2) must be stacked in multiple stages during transportation or storage There is a need to do it.

At this time, the container fastening device 1 used is a so-called twist lock, a device for fastening the upper container C1 and the lower container C2 to each other, as shown in FIG. (6) and a lower surface hole (4) formed at the upper end of the main body (6) rotatably between the locked position and the unlocked position and formed on the lower surface of the corner member (2) disposed at the lower corner of the upper container (C1). A first coupling member 7 detachably inserted into and coupled to the first coupling member 7 and a corner member disposed at an upper corner of the lower container C2 and provided at a lower end of the main body 6 so as to be rotatable between a locked position and an unlocked position ( And a second coupling member 8 detachably inserted into and coupled to the coupling hole 5 formed on the upper surface of 3).

In the case of the container fastening device 1, the operator locks the first engagement member 7 inserted into the bottom hole 4 and the second engagement member 8 inserted into the engagement hole 5, respectively, in the locked position. Rotation between the containers C1 and C2 is achieved. On the contrary, when the operator rotates the first coupling member 7 and the second coupling member 8 to the release position, the coupling between the containers C1 and C2 is performed. Is released.

However, since the conventional container fastening device 1 is a separate device separated from the containers C1 and C2, the container fastening device 1 is separated from the containers C1 and C2 and stored separately so that it is used when necessary. There is a problem in that there is a great risk of loss during storage.

Further, in the conventional container fastening device 1, the first coupling member 7 and the second coupling member 8 are connected to the lower surface hole 4 and the coupling hole 5 of the

corner members

2 and 3. Since each of them must be precisely placed and then inserted, there is also a problem in that the fastening of the containers (C1, C2) is not easy and the working time is relatively long.

The present invention has been made to solve the above problems, an object of the present invention is to provide a container with an improved structure so that the locking unit can be stored in the inner space of the corner member so that the storage of the locking unit is convenient and there is no fear of losing it during storage. To do this.

In order to achieve the above object, a container according to the present invention includes a bottom hole formed in a lower portion of the container for freight transportation, the inner space being formed in the lower corner of the container so as to communicate with the inner space. Corner members; A unit used to fasten a pair of containers adjacent to each other in the case of multi-stage loading of containers, between a storage position stored in an inner space of the corner member and a use position projecting outward through a bottom hole of the corner member. It is movable position, the locking unit for fastening the pair of containers to each other in the use position; characterized in that it comprises a.

Here, one end is coupled to the locking unit, the other end preferably comprises a handle disposed outside the corner member.

Here, the handle preferably comprises at least one joint so that it can be deflected freely.

Here, it is preferable to include position fixing means for position fixing the locking unit in the storage position.

Here, the position fixing means, the first fixing portion which is a groove formed in the corner member; And a second fixing part detachably coupled to the first fixing part and a cutting part formed on the handle.

Here, the locking unit, the main body that can be rotatably inserted into the lower surface of the corner member; One end is mounted to the main body in a rotatable state, and the other end is rotatable about a central axis between a locking position that is inseparable from the coupling hole and a release position that is detachable from the coupling hole while the other end is inserted into the coupling hole of an adjacent container. And a coupling member, wherein the coupling member is preferably rotatable in the locked position.

Here, it is preferable that the coupling member includes an inclined surface formed at the other end so that the coupling member can be easily inserted into the coupling hole of the adjacent container.

Here, when the locking unit is in the use position, the other end portion of the engaging member projecting outward through the lower surface hole of the corner member is reinserted into the inner space of the corner member through the lower surface hole of the corner member. It is preferable that it is formed so that it may not be.

Here, it is preferable that the engagement member can be fixed in a rotational position at a point between the locking position and the release position.

Here, it is preferable that an opening for inserting the locking unit into the inner space of the corner member is formed.

Here, the coupling member may be one capable of reciprocating along the central axis between a retracted position drawn into the main body and a protruding position protruding from the main body.

Here, the coupling member, it is preferable that the reciprocating position along the central axis can be fixed in the retracted position and the protruding position.

Here, the main body includes a pair of housing members each having a cut surface disposed to face each other, one of the cut surface is formed with a position fixing projection of the protruding shape, the other one of the cut surface fixed the position It is preferable that a concave shaped position fixing groove that can be engaged with the protrusion is formed.

Here, it is preferable that the main body is rotatably inserted into the engaging hole of the adjacent container while the engaging member is rotatably inserted into the lower surface hole of the corner member when the engaging member is in the locked position.

Here, the main body is in contact with the inner circumferential surface of the lower surface hole of the corner member and the inner circumferential surface of the engaging hole of the adjacent container when the engaging member is rotatably inserted into the lower surface hole of the corner member when the engaging member is in the locked position. It is desirable to maintain the state.

Here, the outer circumferential surface of the coupling member, the pressing ball receiving groove which is spaced apart by a predetermined angle along the central axis is formed, as a spherical member for pressing the outer circumferential surface of the coupling member, the pressure ball moving hole formed in the main body It is arranged to reciprocate along the pressure ball can be accommodated in the pressure ball receiving groove; Spring is an elastic member for elastically biasing the pressing ball in the direction of the outer circumferential surface of the coupling member: a stopper which is a member for closing the outer end of the pressing ball moving hole.

Here, the main body includes a pair of housing members each having a cut surface disposed to face each other, wherein the stopper is formed to protrude on a cut surface of one of the pair of housing members, the pair of It is preferable that a stopper accommodation groove is formed in the cut surface of the other one of the housing members to accommodate the stopper.

Here, one end of the handle is coupled to the upper end of the locking unit, it is preferable that the other end of the handle is formed so as to be rotatable upwards but not rotatable around the joint.

According to the present invention, a member disposed at a lower corner of a container, the corner member including a lower surface hole which is a hole formed in the lower end portion so as to communicate with the inner space, a storage position accommodated in the inner space of the corner member and the lower surface of the corner member. It is possible to move the position between the use position projecting to the outside through the ball, and includes a locking unit for fastening a pair of containers to each other in the use position, so that the container fastening device must be stored separately from the containers Unlike the container, the locking unit can be stored and stored in the inner space of the corner member, so that the storage of the locking unit is convenient and there is no effect of being lost during storage.

1 is a view for explaining a conventional container fastening device.

FIG. 2 is a partially enlarged view of the container fastening device shown in FIG. 1. FIG.

3 is a perspective view of a corner member of a container that is an embodiment of the present invention.

4 is a front view of a partially cut-out state so that the inside of the corner member shown in FIG. 3 can be easily seen.

FIG. 5 is a view showing the locking unit shown in FIG. 4 being moved to the left in the inner space of the corner member.

FIG. 6 is a view illustrating a state in which the locking unit illustrated in FIG. 5 protrudes downward through the bottom hole of the corner member.

FIG. 7 is a view showing a state in which the engaging member of the locking unit shown in FIG. 6 is in a rotational position fixed at a point between the locked position and the released position.

FIG. 8 is a perspective view of the corner member and the locking unit shown in FIG. 7.

FIG. 9 is a view illustrating a state in which the upper container in which the corner member and the locking unit shown in FIG. 7 are mounted descends from above the lower container.

FIG. 10 is a view illustrating a state in which a coupling member of the locking unit illustrated in FIG. 9 is rotated by a predetermined angle while being inserted into a coupling hole of a lower container.

FIG. 11 is a view illustrating a state in which a coupling member of the locking unit illustrated in FIG. 9 is inserted into a coupling hole of a lower container and then rotated to a locked position and fixed in position.

12 is an exploded perspective view of the locking unit shown in FIG. 4.

FIG. 13 is a coupled perspective view of the locking unit shown in FIG. 12.

FIG. 14 is a bottom view showing a state in which the engaging member of the locking unit shown in FIG. 13 is in a released position without being rotated with respect to the main body.

FIG. 15 is a view showing a state in which the engaging member of the locking unit shown in FIG. 14 is rotated by a predetermined angle with respect to the main body to be fixed at a position between the locking position and the unlocking position.

FIG. 16 is a view showing a state in which the engaging member of the locking unit shown in FIG. 15 is rotated by a predetermined angle with respect to the main body and fixed in a locked position.

17 is a horizontal cross-sectional view of the engaging member of the locking unit shown in FIG. 12.

18 is a perspective view of the corner member shown in FIG. 3 viewed from another angle.

19 is a perspective view of the corner member shown in FIG. 3 viewed from the rear.

20 is an exploded perspective view of the locking unit of the container according to another embodiment of the present invention.

FIG. 21 is a perspective view of the locking unit shown in FIG. 20.

FIG. 22 is a front view of the locking unit shown in FIG. 21.

FIG. 23 is a view illustrating a state in which the coupling member of the locking unit illustrated in FIG. 21 protrudes downward.

24 is an exploded perspective view of a handle of the container which is another embodiment of the present invention.

FIG. 25 is a view for explaining a state in which the knob illustrated in FIG. 24 may be rotated upward.

FIG. 26 is a view showing the locking unit shown in FIG. 20 being moved to the left in the inner space of the corner member.

FIG. 27 is a view showing a state in which the locking unit shown in FIG. 20 protrudes downward through the bottom hole of the corner member.

FIG. 28 is a view showing a state in which the engaging member of the locking unit shown in FIG. 20 is rotated in the locked position.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

3 is a perspective view of a corner member of a container according to an embodiment of the present invention, Figure 4 is a front view of a partially cut state so that the inside of the corner member shown in FIG. FIG. 5 is a view showing the locking unit shown in FIG. 4 being moved to the left in the inner space of the corner member.

3 to 5, a container 100 according to a preferred embodiment of the present invention is a cargo container, a corner member 10, a locking unit 20, and a handle 30. It is configured to include.

The corner member 10 is a rectangular parallelepiped metal member attached to the lower four corners of the container and includes a lower surface hole 11, a side hole 12, and an inner space 13. In the present embodiment, the corner member 10 is manufactured in the form of a box by welding six metal plates, and is welded to the end of the lower frame 9 of the container.

The lower surface hole 11 is an elliptical hole formed in the lower end surface of the corner member 10 and has a shape in accordance with international standards.

The side hole 12 is an elliptical hole formed in the outer surface of the corner member 10, and has a shape in accordance with international standards. In the present embodiment, two side holes 12 are formed.

The inner space 13 is a space formed inside the corner member 10 and communicates with the lower surface hole 11 and the side hole 12.

As shown in FIG. 4, the inner space 13 may be connected to the first coupling member 7 when the locking unit 20 is stored in the right side of the inner space 13 of the corner member 10. A similar separate twist lock has a transverse length of sufficient size to be inserted and fastened through the lower surface hole 11 from the outside.

As shown in FIG. 18, a circular through hole 14 through which the handle 30 penetrates is formed outside the rear surface of the corner member 10.

At the lower end of the through hole 14, a first fixing portion 15, which is a groove extending downward, is formed.

An opening 16 for inserting the locking unit 20 into the inner space 13 of the corner member 10 is formed inside the rear surface of the corner member 10.

The opening 16 is formed toward the interior of the finished container, but is later closed by appropriate means.

The locking unit 20 is a locking device used to fasten a pair of containers C1 and C2 adjacent to each other in a case where a cargo container is stacked in multiple stages up and down, and the corner member ( It is mounted in the internal space 13 of 10).

The locking unit 20 may be disposed between a storage position accommodated in the inner space 13 of the corner member 10 and a use position where the lower end portion protrudes to the outside through the lower surface hole 11 of the corner member 10. The location can be moved.

In this embodiment, the storage position of the locking unit 20, as shown in Figure 4, the position in which the locking unit 20 is stored in the right side of the inner space 13 of the corner member 10. it means.

In this embodiment, the use position of the locking unit 20 is, after the locking unit 20 is moved to the left of the inner space 13 of the corner member 10, as shown in FIG. As illustrated in FIG. 6, the lower end of the locking unit 20 protrudes to the outside by descending through the bottom hole 11 of the corner member 10.

The locking unit 20 is configured to include a main body 21, a coupling member 22, a pressing ball 23, a spring 24, and a stopper 25.

The main body 21 is a housing that can be rotatably inserted into the lower surface hole 11 of the corner member 10.

On both sides of the upper end of the main body 21, a locking step 213 is formed to protrude outward and to be caught by the lower surface hole 11 of the corner member 10, respectively.

Inside the main body 21, a head receiving groove 211 which is a groove formed horizontally in a circular disk shape is formed.

The lower end surface of the main body 21, the connection portion receiving hole 214, which is a circular hole extending vertically to the head receiving groove 211 is formed.

On the outer circumferential surface of both lower ends of the main body 21, a pressure ball moving hole 212, which is a circular hole extending inwardly and communicating with the connection part receiving hole 214, is formed.

In the present embodiment, the main body 21, as shown in Figure 12, the two housing members (21a, 21b) manufactured in a corresponding shape is screwed in a state facing each other the cut surface 215 is formed vertically It is prepared by. Here, the cutting surface 215 is formed to half the head receiving groove 211, the pressing ball moving hole 212 and the connecting portion receiving hole 214.

As shown in FIG. 10, the coupling member 22 may be inserted into and coupled to the coupling hole 5 of the corner member 3 of the lower container C2. The coupling member 22 may include a head 221 and a connection portion ( 222 and the coupling portion 223 is configured.

The head 221 is a portion of a circular disk shape having the center axis C as the center of the circle, and is separated from the head receiving groove 211 of the main body 21 provided at the upper end of the coupling member 22. Impossible to mount.

The head 221 is mounted to the head receiving groove 211 of the main body 21 in a rotatable state.

The connecting portion 222 is a cylindrical portion having the center axis C as the center of the circle, and extends downward from the lower surface of the head 221.

On the outer circumferential surface of the connecting portion 222, four pressing ball receiving grooves 225 are formed at intervals of 90 degrees along the circumference.

The pressing ball receiving groove 225 is a hemispherical groove having a shape corresponding to the pressing ball 23 can be accommodated, as shown in Figure 17, the central axis (P2) of the coupling portion 223 It is formed in the position rotated by the predetermined angle (alpha) 1 with respect to. Here, the angle α1 may have a value of 10 degrees to 30 degrees. In this embodiment, the angle α1 is 15 degrees.

The coupling portion 223 is a rectangular portion having a corresponding shape so as to be inserted into the coupling hole 5 of the corner member 3 of the lower container C2, and is provided at the lower end of the connection portion 222.

The engaging portion 223 is in a state of being inserted into the engaging hole 5 of the corner member 3 of the lower container C2, the locking position that cannot be separated from the engaging hole 5, and the engaging hole 5. It is rotatable between release positions that are detachable from.

Here, the locking position is a position where the central axis P1 of the main body 21 and the central axis P2 of the coupling part 223 form a predetermined angle α2 as shown in FIGS. 11 and 16. 6 and 14, the central axis P1 of the main body 21 and the central axis P2 of the coupling part 223 are parallel to each other. The angle α2 is 105 degrees.

As shown in FIG. 8, a plurality of inclined surfaces 224 are disposed on the lower surface of the coupling part 223 so that the coupling part 223 can be easily inserted into the coupling hole 5 of the lower container C2. Is formed.

The inclined surface 224 is provided such that the lower surface of the coupling portion 223 is convex downward, and as shown in FIGS. 9 and 10, at the edge of the coupling hole 5 of the lower container C2. By contact, the guide function can be guided by the coupling hole (5). In this case, the coupling part 223 may be rotated from the posture shown in FIG. 15 to the posture shown in FIG. 14.

The pressing ball 23 is a sphere-shaped member for pressing the outer circumferential surface of the connecting portion 222, may be accommodated in the pressing ball receiving groove 225, the pressing ball moving hole 212 It is arrange | positioned so that reciprocation is possible.

The spring 24 is an elastic member which elastically biases the pressing ball 23 in the direction of the outer circumferential surface of the connecting portion 222. In this embodiment, a coil spring is used.

The stopper 25 is a member for closing the outer end of the pressing ball moving hole 212, and one end of the spring 24 is in contact with an inner surface thereof.

Therefore, once the pressing ball 23 is accommodated in the pressing ball receiving groove 225, the pressing ball 23 is in close contact with the pressing ball receiving groove 225 by the spring 24, by the external force As long as the connection part 222 is not rotated, the pressure ball 23 does not move away from the pressure ball receiving groove 225, so that the coupling member 22 is rotated relative to the body 21. Has

As a result, the coupling member 22 is fixed to the rotational position at intervals of 90 degrees, so that the locking position can be fixed to the rotational position as shown in FIG. 16, and the locking position and the release as shown in FIG. 15. Rotational position can also be fixed at points between positions. However, the term "rotating position fixed" herein means that the rotation is not performed when an external force of a predetermined size or less is applied, and a rotatable structure when an external force of a predetermined size or more is applied.

The handle 30 is used by the operator to move the locking unit 20, one end of which is inserted into the interior space 13 of the corner member 10 and coupled to the locking unit 20. The other end is disposed outside the corner member 10. The handle 30 is configured to include a grip 31, an extension 32, a distal end 33, a joint 34, and a second fixing part 35.

The gripping portion 31 is an annular member that can be gripped by a worker by hand, and is disposed outside the corner member 10.

The extension portion 32 is a straight rod member that is elongated and has one end connected to the gripping portion 31.

The extension part 32 is disposed to penetrate the through hole 14 formed in the corner member 10, and can move in a reciprocating position along the through hole 14.

On the other end of the extension part 32, a second fixing part 35, which is a cutting part of a corresponding shape, is formed to be detachably coupled to the first fixing part 15 formed on the corner member 10. It is.

In the present embodiment, a position fixing means for positioning the locking unit 20 at the storage position to the corner member 10 is provided, and the position fixing means includes the first fixing portion 15 and the second fixing portion. And a fixing part 35.

The distal end 33 is a “b” shaped rod member, one end of which is connected to the other end of the extension part 32, the other end of which is welded to the main body 21 of the locking unit 20. Are combined.

The joint part 34 is a hinge structure that can be freely refracted, and is disposed at a connection point of the grip part 31 and the extension part 32 and at a connection point of the extension part 32 and the distal end part 33, respectively. It is.

Hereinafter, an example of the method of using the container 100 of the structure mentioned above is demonstrated.

First, as shown in FIG. 4, when the locking unit 20 is in the retracted position, the second fixing part 35 of the handle 30 as shown in FIG. 18 is removed from the corner member 10. When inserted into the first fixing part 15, the locking unit 20 in the storage position is maintained in a fixed position without shaking in the inner space 13 of the corner member 10.

In this state in which the locking unit 20 is fixed in position, when fastening the containers (C1, C2), an operator grasps the grip portion 31 of the handle 30 and lifts it slightly upwards, as shown in FIG. 18. As shown, the second fixing part 35 of the handle 30 is separated from the first fixing part 15 of the corner member 10.

Subsequently, when the operator pushes the gripping portion 31 inwards, as shown in FIG. 5, the locking unit 20 moves horizontally to the left side in the inner space 13 of the corner member 10. As shown in FIG. 6, the locking unit 20 descends through the lower surface hole 11 of the corner member 10 by gravity to a use position in which the lower end portion of the locking unit 20 protrudes outward. Is moved. At this time, the main body 21 of the locking unit 20 is maintained in a state rotatably inserted into the lower surface hole 11 of the corner member 10, the locking jaw 213 is the lower surface hole 11 ), It does not fall down through the lower surface hole (11).

Then, the operator rotates the engaging portion 223 by a predetermined angle α1 by hand, and the engaging member 22 is disposed between the locked position and the released position as shown in FIGS. 8 and 15. The rotational position at the point is fixed.

After operating the locking unit 20 mounted on the upper container (C1) as described above, as shown in Figure 9 moves the upper container (C1) on the lower container (C2) to be lowered slowly, As the inclined surface 224 of the coupling portion 223 comes into contact with the edge of the coupling hole 5 of the corner member 3 of the lower container C2, the coupling portion 223 is illustrated in FIGS. 10 and 14. ) Rotates to the release position, and the main body 21 of the locking unit 20 is rotatably inserted into the coupling hole 5.

Lastly, as shown in FIG. 11, when the operator rotates the coupling part 223 to the locked position by hand, the coupling between the pair of containers C1 and C2 adjacent to each other is completed.

Meanwhile, the fastening release method between the containers C1 and C2 may be performed in the reverse order of the above fastening method, and thus detailed description thereof will be omitted.

The container 100 of the above-mentioned structure is a member arrange | positioned at the lower corner of the container C1, C2 and the corner member 10 which includes the lower surface hole 11 which is a hole formed in the lower end part so that it may communicate with the internal space 13. And, the position can be moved between the storage position accommodated in the inner space 13 of the corner member 10 and the use position projecting to the outside through the bottom hole 11 of the corner member 10, the use position Since it includes a locking unit 20 for fastening the pair of containers (C1, C2) to each other, the container and the conventional container that must be stored separately from the container fastening device (1) separately from the (C1, C2) and Alternatively, the locking unit 20 can be stored and stored in the inner space 13 of the corner member 10, there is an advantage that the storage of the locking unit 20 is convenient and there is no risk of losing it during storage. .

In addition, the container 100 has one end coupled to the locking unit 20 and the other end includes a handle 30 disposed outside the corner member 10. By using the 30) there is an advantage that can easily perform the position movement of the locking unit 20.

In addition, the container 100 includes the one or more joints 34 so that the handle 30 can be deflected freely, even if a horizontal movement or a vertical movement of the locking unit 20 occurs. There is an advantage that the position of the other end of 30 can be fixed within a predetermined area.

In addition, since the container 100 includes position fixing means 15 and 35 for positioning and fixing the locking unit 20 at the storing position, the locking unit 20 at the storing position is located at the corner. It can be maintained in a fixed position without shaking in the inner space 13 of the member 10, there is an advantage that there is no fear of noise caused by the locking unit 20 or damage to the locking unit 20.

In addition, the container 100, the position fixing means, the first fixing portion 15 which is a groove formed in the corner member 1 and the first fixing portion 15 is detachably coupled to the handle ( Since the second fixing part 35, which is a cutting part formed at 30, is included, there is an advantage that the position fixing means can be implemented by simple machining without using a separate member.

The container 100 may include a main body 21 in which the locking unit 20 may be rotatably inserted into the lower surface hole 11 of the corner member 10, and one end of the container 100 may be rotatable. It is mounted to the main body 21, the other end in the state of being inserted into the coupling hole 5 of the adjacent container (C2) in the locking position that can not be separated from the coupling hole 5 and the release position detachable from the coupling hole (5) A coupling member 22 that is rotatable between and the coupling member 22 can be fixed in a rotational position in the locked position, as shown in FIG. 6 when the locking unit 20 is in the use position. It is easy for an operator to rotate the coupling member 22 with respect to the main body 21 at various angles, and as shown in FIG. 11, the coupling member 22 is coupled to the coupling hole 5 of the lower container C2. Easily rotated to the locked position when inserted There is an advantage that is not separated and separated from the coupling hole (5).

In addition, the container 100, the inclined surface 224 formed on the other end of the coupling member 22 so that the coupling member 22 can be easily inserted into the coupling hole 5 of the lower container (C2). Since the inclined surface 224 is in contact with the edge of the coupling hole 5 of the lower container C2, as shown in FIG. 10, the coupling member 22 is formed by the coupling hole 5. There is an advantage that can be guided.

And, the container 100, the coupling member 22, as shown in Figure 9 and 15 can be fixed to the rotation position at the point (alpha) 1 between the locking position and the release position, the upper container ( When C1 slowly descends toward the lower container C2, the position of the coupling hole 5 of the coupling member 22 and the lower container C2 does not correspond exactly, so that the coupling member 22 is connected to the lower container. Even when contacting the other part of (C2), the engaging portion 223 exposed to the outside of the lower surface hole 11 through the lower surface hole 11 of the corner member 10 inside the corner member 10. There is an advantage not to be reinserted into the space 13.

In addition, since the container 100 includes an opening 16 formed inside the rear surface of the corner member 10 as shown in FIG. 19, the container 100 may be connected to the corner member 10. There is an advantage that can be easily inserted into the interior space 13 to be mounted.

Meanwhile, FIG. 20 illustrates an example of the locking unit 120 of the container 200, which is another embodiment of the present invention. Since the configuration and effects of the locking unit 120 are the same as the configuration and effects of the locking unit 20 described above, only the differences between them will be described below.

As shown in FIG. 20, the main body 21 of the locking unit 120 includes a pair of

housing members

21a and 21b each having a cutting surface 215 disposed to face each other, and the cutting surface ( 215 is provided by being screwed by a screw (not shown) passing through the screw hole 26 formed in the housing members (21a, 21b) facing each other.

The head receiving groove 211 of the locking unit 120 is formed such that the head 221 can be reciprocated linearly up and down.

The connection part receiving hole 214 of the locking unit 120 is formed such that the connection part 222 can reciprocate linearly up and down.

Accordingly, the coupling member 22 of the locking unit 120 may be formed between the center axis (B) between the retracted position introduced into the main body 21 and the protruding position protruding downward from the main body 21 by a predetermined interval. It has a structure capable of linear reciprocating along C).

On the other hand, in the connecting portion 222 of the locking unit 120, the pressing ball receiving groove 225 is arranged in two rows up and down.

That is, four pressurized ball receiving grooves 225 are formed at intervals of 90 degrees on the outer circumferential surface of the upper end of the connecting portion 222, and two pressurized ball accommodated along the circumference at the outer circumferential surface of the lower end of the connecting portion 222. The grooves 225 are formed at 180 degree intervals.

Two of the four upper pressurizing ball receiving grooves 225 are arranged side by side with the central axis P2 of the coupling part 223, unlike FIG. 17. That is, in the present embodiment, the angle α1 shown in FIG. 17 is 0 degrees.

The two lower pressure ball receiving grooves 225 are spaced downward from the four upper pressure ball receiving grooves 225 by a predetermined interval, and as shown in FIG. It is arrange | positioned in parallel with the central axis P2.

The pressing ball 23 is a sphere-shaped member that can be accommodated in each of the six pressing ball receiving grooves 225.

Accordingly, the coupling member 22 of the locking unit 120 has a structure in which the vertical position along the central axis C is fixed at the retracted position and the protruding position.

A pair of position fixing protrusions 216 having a protruding shape is formed on the left and right sides of the cut surface 215 of the housing member 21a, and on the left and right sides of the top end of the cut surface 215 of the housing member 21b. A concave shape fixing groove 217 that can be engaged with the positioning protrusion 216 is formed.

The stopper 25 of the locking unit 120 is integrally formed to protrude from the cut surface 215 of the housing member 21a, and the stopper 25 is formed on the cut surface 215 of the housing member 21b. The plug receiving groove 251, which is a groove of a corresponding shape, is formed to accommodate the protruding portion of the). In the present embodiment, the plug receiving groove 251 is provided at both ends of the pressing ball moving hole 212 formed in the housing member 21b.

In addition, the main body 21 of the locking unit 120, as shown in Figs. 11 and 28, the corner member of the lower container (C2) when the engaging member 22 is in the locked position ( It has a predetermined vertical length so that at least a part of the coupling hole 5 of the 3) can be rotatably inserted.

For example, as shown in FIG. 28, when the coupling member 22 is in the locked position, the vertical clearance T2 from the upper surface of the coupling portion 223 to the lower surface of the coupling hole 5 is increased. Since the main body 21 has a value smaller than the vertical clearance T1 from the lower end surface of the main body 21 to the upper end surface of the coupling hole 5, the main body 21 always has the corner member ( The state in which the coupling hole 5 of 3) is rotatably inserted can be maintained.

In addition, the main body 21 of the locking unit 120, the inner peripheral surface of the lower surface hole 11 of the corner member 10 of the upper container C1 when the engaging member 22 is in the locked position. It has a structure capable of maintaining a contact state on the inner peripheral surface of the coupling hole 5 of the corner member 3 of the lower container (C2).

The handle 130 of the container 200 includes a grip 31, an extension 32, a distal end 33, and a joint 34.

The grip portion 31 of the handle 130 is a linear member that can be gripped by a worker by hand, and is disposed outside the corner member 10.

The extension part 32 of the handle 130 is a long extending straight rod member, one end of which is connected to the central part of the gripping part 31.

End portion 33 of the handle 130 is a "b" shaped bar member, one end is connected to the other end of the extension portion 32, the other end of the main body of the locking unit 120 ( 21) It is coupled to the upper end by a fixing screw 333.

The fixing screw 333 is screwed to the handle coupling hole 218 formed in the upper end of the housing member 21b in a state of passing through the through hole 332 formed in the distal end 33.

The joint part 34 is a hinge structure that can be freely refracted, and is disposed at a connection point between the extension part 32 and the distal end 33, and the first joint hole 341 formed in the distal end 33. And a second joint hole 342 formed at the other end of the extension part 32, a joint male thread 343 passing through the first joint hole 341 and the second joint hole 342, and the joint part. And a joint female screw 344 screwed to the male screw 343.

A first anti-rotation part 331, which is a locking jaw formed in a “┌” shape, is formed at a lower surface of one end of the distal end 33, and the first anti-rotation part is formed at the other end of the extension part 32. A second anti-rotation part 321 is formed which is a "J" shaped locking jaw formed to engage with the 331.

By the first rotation preventing portion 331 and the second rotation preventing portion 321, the joint portion 34, the grip portion 31 of the handle 130 as shown in Figure 25, the joint portion It is rotatable about 34 and up, i.e., counterclockwise (S1), but it is formed so as not to be rotatable around the joint part 34, i.

The container 200 of the above-described configuration has a center between the engaging position 22 of the locking unit 120 and the protruding position protruding from the main body 21 and the protruding position protruding from the main body 21. Since the reciprocating movement along the axis (C), it is possible to reduce the height of the locking unit 120 in the storage position, there is an advantage that can reduce the height of the corner member (10). Therefore, the container 200 does not need to use a separate triangular reinforcement plate (not shown) when attaching the corner member 10 to the lower corner of the container 200, so that the triangular reinforcement plate is a container door ( Since the door does not cover the opening, there is an advantage that the size of the cargo to be loaded is not limited and convenient to unload.

And, the container 200, the engaging member 22 of the locking unit 120, by the pressing ball 23, the spring 24 and the pressing ball receiving groove 225, the retracted position and the Since the reciprocating position along the central axis C can be fixed in the protruding position, it is easy for the operator to move the position to the retracted position or the protruding position by pulling down or pushing up the engaging member 22 by hand. There is an advantage.

In addition, the container 200 includes a pair of

housing members

21a and 21b each having a cutting surface 215 disposed such that the main body 21 faces each other, and one of the cutting surfaces 215 Since the position fixing protrusion 216 of the protruding shape is formed, and the other one of the cut surface 215 is formed with a concave position fixing groove 217 that can be coupled to the position fixing protrusion 215, The

housing members

21a and 21b may be easily assembled, and may have a vertical shear force greater than the vertical shear force that may be supported by a screw inserted into the screw hole 26.

The container 200 is rotatably inserted into the lower surface hole 11 of the corner member 10 when the coupling member 22 is in the locked position. Since the lower container C2 is rotatably inserted into the coupling hole 5, the pair of containers C1 and C2 adjacent to each other by the main body 21 may be firmly coupled even when the transport vehicle is shaken. There is an advantage to maintain.

In addition, the container 200 is in a state in which the main body 21 is rotatably inserted into the lower surface hole 11 of the corner member 10 when the coupling member 22 is in the locked position. Since the contact state is maintained simultaneously with the inner circumferential surface of the lower surface hole 11 of the corner member 10 and the inner circumferential surface of the coupling hole 5 of the lower container C2, the pair of containers (even if the transportation vehicle is shaken) C1 and C2 do not move relative to each other in the horizontal direction, there is an advantage that can maintain a firm coupling state.

And, the container 200, the outer peripheral surface of the coupling member 22 is formed with a pressing ball receiving groove 225 spaced apart by a predetermined angle along the central axis (C), the coupling member 22 As a spherical member for pressing the outer circumferential surface of the) is arranged to reciprocate along the pressure ball moving hole 212 formed in the main body 21, the pressure ball that can be accommodated in the pressure ball receiving groove (225) 23, a spring 24 which is an elastic member for elastically biasing the pressing ball 23 in the direction of the outer circumferential surface of the coupling member 22, and a member for closing the outer end of the pressing ball moving hole 212. Since it includes a stopper 25, the engaging member 22 can be fixed in the rotational position in the locking position, the reciprocating position along the central axis C in the retracted position and the protruding position can be fixed That make the structure easy to implement There is an advantage in that.

Moreover, the said container 200 is formed in the state which the said stopper 25 protruded in the cut surface 215 of the said pair of housing member 21a, and is cut in the cut surface 215 of the said housing member 21b. Since the plug receiving groove 251 is formed to accommodate the plug 25, the

housing members

21a and 21b may be assembled in the same manner as the advantages of the positioning protrusion 215 and the positioning groove 217. This is easy, there is an advantage that can bear a vertical shear force greater than the vertical shear force that can be supported by a screw inserted into the screw hole (26).

In addition, the container 200, one end of the handle 130 is coupled to the upper end of the locking unit 120, the other end of the handle 130, the upper half of the joint portion 34, that is half It is rotatable in a clockwise direction S1, but is formed so as not to rotate in a downward direction, that is, in a clockwise direction S2, with respect to the joint part 34, so that the locking unit 120 is opened using the handle 130. As shown in FIG. 26, when the horizontal unit 13 horizontally moves from the inner space 13 of the corner member 10 to the left side, the locking unit 120 may stably move horizontally without falling down to the left side.

Although the present invention has been described above, the technical scope of the present invention is not limited to the contents described in the above-described embodiments, and an equivalent configuration modified or changed by those skilled in the art is a technical feature of the present invention. Obviously, it is not beyond the scope of thought.

Claims

In a freight container,

A member disposed at a lower corner of the container, the corner member including an inner space and a lower surface hole which is a hole formed in a lower end portion so as to communicate with the inner space;

A unit used to fasten a pair of containers adjacent to each other in the case of multi-stage loading of containers, between a storage position stored in an inner space of the corner member and a use position projecting outward through a bottom hole of the corner member. A locking unit movable in position and fastening the pair of containers to each other at the use position;

Container comprising a
The method of claim 1,

A container having one end coupled to the locking unit and the other end including a handle disposed outside the corner member.
The method of claim 2,

The handle is,

A container comprising one or more joints to be freely refracted
The method of claim 2,

And position fixing means for position fixing the locking unit at the stowed position.
The method of claim 4, wherein

The position fixing means,

A first fixing part which is a groove formed in the corner member;

A second fixing part detachably coupled to the first fixing part and a cutting part formed on the handle;

Container comprising a
The method of claim 1,

The locking unit,

A main body which can be rotatably inserted into the lower surface of the corner member;

One end is mounted to the main body in a rotatable state, and the other end is rotatable about a central axis between a locking position that is inseparable from the coupling hole and a release position that is detachable from the coupling hole while the other end is inserted into the coupling hole of an adjacent container. Coupling member;

Including;

The coupling member is characterized in that the container can be fixed in the rotation position in the locked position
The method of claim 6,

The coupling member,

A container comprising an inclined surface formed at the other end thereof so as to be easily inserted into the coupling hole of the adjacent container
The method of claim 6,

When the locking unit is in the use position, the other end of the engaging member protruding outward through the lower surface of the corner member is not reinserted into the inner space of the corner member through the lower surface of the corner member. Formed container
The method of claim 8,

The engaging member may be fixed in a rotational position at a point between the locking position and the release position.
The method of claim 1,

An opening for inserting the locking unit into the inner space of the corner member is formed
The method of claim 6,

The coupling member,

A container capable of reciprocating along the central axis between an inlet position entering the body and a protruding position protruding from the body
The method of claim 11,

The coupling member,

Containers, characterized in that in the retracted position and the projecting position, the reciprocating position along the central axis can be fixed
The method of claim 6,

The main body,

A pair of housing members each having a cut face disposed to face each other,

One of the cut surfaces is formed with a position fixing projection of the protruding shape, the other one of the cut surface is a container characterized in that the concave shape fixing groove that can be combined with the position fixing projections are formed
The method of claim 6,

The main body,

A container which is rotatably inserted in the engaging hole of the adjacent container when the engaging member is in the locked position and is rotatably inserted into the lower surface hole of the corner member;
The method of claim 14,

The main body,

When the coupling member is in the locked position, the contact member is maintained in contact with the inner circumferential surface of the lower surface hole of the corner member and the inner circumferential surface of the coupling hole of the adjacent container while being rotatably inserted into the lower surface hole of the corner member. Featured container
The method of claim 6,

On the outer circumferential surface of the coupling member, there is formed a pressing ball receiving groove spaced by a predetermined angle along the central axis,

A spherical member for pressing the outer circumferential surface of the coupling member, the spherical member being arranged to reciprocate along a pressure ball moving hole formed in the main body, the pressure ball being accommodated in the pressure ball receiving groove;

Spring is an elastic member for elastically biasing the pressing ball in the direction of the outer peripheral surface of the coupling member:

A stopper which is a member for closing an outer end of the pressing ball moving hole;

Container comprising a
The method of claim 16,

The main body,

A pair of housing members each having a cut face disposed to face each other,

The stopper is formed to protrude on a cutting surface of one of the pair of housing members,

Containers characterized in that the stopper receiving groove for accommodating the stopper is formed on the other cut surface of the pair of housing members
The method of claim 3, wherein

One end of the handle is coupled to the upper end of the locking unit,

Containers, characterized in that the other end of the handle is formed so as to be rotatable upward with respect to the joint portion but not rotatable downward