KR101120388B1 - Container connector - Google Patents

Abstract

The present invention is a container connection bracket provided with cones on the upper and lower sides of a shaft, and the lower cone can be detached from the upper corner casting of the lower container or the socket on the deck without manual rotation of the lower cone. The purpose of the present invention is to provide a connection bracket that can improve the performance and secure the necessary high force according to the situation. To achieve this object, the lower cone has a rotary locking engagement structure in which the cone is engaged with the inner edge of the engaging hole when the lower cone is inserted into the upper corner casting or the socket and rotated from the engaging release position to the engaging position. And a non-rotating second locking structure in which the projection-shaped locking portion provided on the side of the cone is engaged with the inner edge of the locking hole even when it is not rotated when inserted into the upper corner casting or the socket. .

Description

Container fittings {CONTAINER CONNECTOR}

TECHNICAL FIELD This invention relates to the container connection bracket which concerns on container loading foiling technology. The connecting bracket of the present invention is used when a plurality of containers are stacked up and down, or when the container is fixed on the deck of a ship.

Conventionally, as disclosed in the following Patent Document 1, the lower corner casting (when multiple containers are stacked up and down) provided on the lower surface of the upper container or the lower corner casting (container of the vessel is installed on the lower surface of the container) Upper cones engaged on the deck, and upper corner castings (if multiple containers are stacked up and down) on the upper surface of the lower container, or sockets on the deck of the ship (containers Connection brackets for containers with lower cones are known, and the upper and lower cones are respectively installed at the top or bottom of the rotating shaft, and the corner castings or sockets from the engaging holes of the corner castings or sockets. When the cone is inserted into and rotated from the unlocking position to the engaging position, the cone It is structured to engage with the inner edge. Therefore, according to such a structure, a very strong container high force is exerted, while it is difficult to unload the container because the cone cannot be separated from the corner casting or the socket unless the cone is rotated by manual operation.

[Patent Document 1] Utility Model Publication H5 (1993) -23514

In view of this, the present invention allows the lower cone to be separated from the upper corner casting of the lower container or the socket on the deck without manual rotation of the lower cone, thereby improving the workability of the loading. An object of the present invention is to provide a connection bracket for a container, and to provide a container connection bracket that can exert a high force equivalent to that of the conventional cone rotation locking structure as necessary.

In order to achieve the above object, the connection bracket for a container according to claim 1 of the present invention is provided between a lower corner casting of an upper container and an upper corner casting of a lower container or of a container. Cases integrally formed with fittings fitted in a state where they are rotated and restrained in the engaging holes of the corner casting or socket, respectively, above and below a plate-shaped support panel portion arranged to be fitted between the lower corner casting and the socket on the deck. A shaft rotatably inserted into the case, an upper cone installed at the top of the shaft and inserted into the lower corner casting, and at the same time installed in the lower corner of the shaft and in the upper corner casting or socket. Lower cone inserted and rotation of the shaft in one rotational direction by manual operation A shaft rotating operation means for rotating the shaft, a return spring for rotating the shaft back, and a shaft rotation stopping means for stopping the shaft at a predetermined rotation position by manual operation, and the upper cone is inserted into the lower corner casting to release the engagement. Has a rotational engagement structure in which the cone is engaged with the inner edge side of the engagement hole when rotated from the position to the engagement position, and the lower cone is inserted into the upper corner casting or the socket and engaged from the engagement release position. It has a rotational engagement structure in which the cone is engaged with the inner edge side of the engagement hole when rotated to a position, and a projection-like engagement formed on one side of the cone without rotation when inserted into the upper corner casting or socket. The non-rotating part in which the engaging part is engaged with the inner edge of the engaging hole. It further has a 2nd engagement structure, and a lower cone is planar with respect to a engagement hole by slidingly moving with respect to the outer edge of the engagement hole of an upper corner casting or a socket at the time of installation in order to operate the said 2nd engagement structure. A first guide surface having an inclined surface shape which is displaced so that the engaging portion can pass through the engaging hole, is provided at the lower portion of the engaging part, and after passing through the engaging part, with respect to the outer edge of the engaging hole of the upper corner casting or socket. Sliding to move the displaced lower cone to return to the lower fitting portion is provided with a second guide surface of the inclined surface shape to move the locking engagement portion to the position to engage the inner edge side of the engagement hole, the upper corner casting Or sliding with respect to the inner edge of the engaging hole of the socket Thus, the lower cone is displaced in a plane with respect to the engaging hole so that a third guide surface having an inclined surface that allows the engaging part to pass through the engaging hole is provided on the upper part of the engaging part, and the shaft is formed of a material having a different rotation angle. In the first rotation stop position and the second rotation stop position, it is possible to stop. In the first rotation stop position, the rotation engaging structure of the upper cone is in the engaging position, and the rotation engaging structure of the lower cone is in the unlocking position. In addition, the second locking engagement structure is operable while the locking engagement portion facing the locking engagement hole in the front direction, and in the second rotation stop position, both the locking engagement structure of the upper cone and the rotating engagement coupling structure of the lower cone are engaged. Position, the shaft stops at the first rotational stop position, and the lower cone is at the second engagement mechanism in normal use of the connecting bracket. It is automatically engaged with the corner casting or socket, and it is automatically pulled out, and when strengthening the high force of the connecting bracket, the shaft stops at the second rotation stop position, and the lower cone is engaged with the upper corner casting or socket in the rotation locking structure. It is characterized by.

Further, in the connecting tool for containers according to claim 1, the connecting spring according to claim 2 of the present invention is characterized in that the return spring is set in a neutral state at the first rotation stop position of the shaft. It is characterized by.

In addition, in the connecting bracket according to claim 3 of the present invention, in the container connecting bracket according to claim 1, the second engaging structure of the lower cone is provided on one side of the lower cone. The projection engaging portion is structured to be engaged with one long edge side of the upper corner casting or the engagement hole of the socket, and in order to set a large engagement depth of the engagement portion with respect to the edge side, the shaft is engaged with the fitting portion. It is characterized in that it is arranged eccentrically in a direction close to the edge side with respect to the center of the engaging hole in the state of being fitted into the engaging hole.

In addition, in the connecting bracket according to claim 4 of the present invention, in the container connecting bracket according to claim 1, the second engaging structure of the lower cone is provided on one side of the lower cone. The projection engaging portion is structured to be engaged with one long edge side of the upper corner casting or the engagement hole of the socket, and in order to set a large engagement depth of the engagement portion with respect to the edge side, the shaft is engaged with the fitting portion. In a state of being fitted into the engaging hole, the center of the engaging hole is eccentrically arranged in a direction approaching the edge side, and the rotary engaging engagement structure of the upper cone has one end of the engaging hole in the longitudinal direction of the upper cone. The long edge side of the engaging hole is engaged at the same time as the other end of the other side of the engaging hole is engaged. The length from the center of the shaft to one end in the long direction of the upper cone and the length from the center of the shaft to the other end in the long direction of the upper cone are set so as to set a large engagement area of both ends with respect to both edges. It is characterized in that the side arranged on the opposite side is set larger than the side arranged in the eccentric direction of the shaft.

In addition, in the connection bracket according to claim 5 of the present invention, in the container connection bracket according to claim 1, the second engaging structure of the lower cone is provided on one side of the lower cone. The projection engaging portion is structured to be engaged with one long edge side of the upper corner casting or the engagement hole of the socket, and in order to set a large engagement depth of the engagement portion with respect to the edge side, the shaft is engaged with the fitting portion. In a state of being fitted into the engaging hole, the center of the engaging hole is eccentrically arranged in a direction approaching the edge side, and the rotary engaging engagement structure of the upper cone has one end of the engaging hole in the longitudinal direction of the upper cone. The long edge side of the engaging hole is engaged at the same time as the other end of the other side of the engaging hole is engaged. The length from the center of the shaft to one end in the short direction of the upper cone and the length from the center of the shaft to the other end in the short direction of the upper cone is set so as to set a large engagement area of both ends with respect to both edges. It is characterized in that the side arranged on the opposite side is set larger than the side arranged in the eccentric direction of the shaft.

Further, the connecting bracket according to claim 6 of the present invention is the container connecting bracket according to claim 1, wherein the second engaging structure of the lower cone is provided on one side of the lower cone. The projection engaging portion is structured to be engaged with one long edge side of the upper corner casting or the engagement hole of the socket, and in order to set a large engagement depth of the engagement portion with respect to the edge side, the shaft is engaged with the fitting portion. In a state of being fitted into the engaging hole, the center of the engaging hole is eccentrically arranged in a direction closer to the edge side, and the rotary engaging engagement structure of the lower cone has one end of the engaging hole in one of the longer directions of the lower cone. The other end of the other end of the long direction is engaged with the long edge of the other side of the engaging hole, The length from the center of the shaft to one end in the long direction of the lower cone and the length from the center of the shaft to the other end in the long direction of the lower cone are set so as to set the engaging area of both ends with respect to the both edges large. It is characterized in that the side arranged on the opposite side is set larger than the side arranged in the eccentric direction of the shaft at the time of engagement.

The connection bracket of the present invention having the above configuration has a rotation engaging structure for engaging the upper corner casting or the socket by rotating the lower cone with respect to the structure for engaging the lower cone to the upper corner casting of the lower container or the socket on the deck. And two non-rotating second engagement structures that engage the upper corner casting or socket without rotating the lower cone.

The former rotation engaging structure is that the cone is engaged with the inner edge of the engaging hole when the lower cone is inserted into the upper corner casting or the socket and rotated from the engaging release position to the engaging position. As with the technology, a very strong high force is exerted, while the lower cone cannot be separated from the upper corner casting or socket unless the lower cone is rotated by manual operation.

On the other hand, in the latter non-rotating second engagement structure, the projection-shaped engagement portion provided on the side of the cone does not rotate when the lower cone is inserted into the upper corner casting or the socket on the inner edge side of the engagement hole. As the engagement is high, the high force is smaller than the rotational engagement structure of the former, while the lower cone can be automatically separated from the upper corner casting or socket without manual rotation of the lower cone.

Therefore, at the time of normal use, the latter second engagement mechanism is relatively high, but the workability of the load is good, and the rotational engagement mechanism of the high force is high only in an emergency where the shaking of the ship is great, such as in bad weather. By using it properly, it is possible to improve the workability of the unloading operation and to secure the required high force according to the situation.

The mechanism for engaging and disengaging the latter second engaging structure is configured as follows.

In addition, although the connection bracket of this invention is used when loading a some container up and down as mentioned above, or when fixing a container on a deck, the description in the following "means for solving a problem", The case where the former plurality of containers are stacked up and down is described. When the latter container is fixed on the deck, the "top container" in the following description is "container", "lower corner casting of the upper container" is "lower corner casting of the container", and "lower container" In the "deck shape", the "upper corner casting of the lower container" is replaced by the "deck socket."

That is, a lower cone is provided in the lower end of a rotating shaft, and the said lower cone is arrange | positioned under the lower fitting part of a case. When the lower cone rotates, the lower cone acts as the rotation engaging structure, and the following second engaging structure is provided which operates without rotating in the engaging release position.

First, a projection engaging portion is installed on one side of the lower cone, and the engaging portion is engaged from the inside of the edge of the engaging hole of the upper corner casting of the lower container so that the lower cone is cast on the upper corner of the lower container. It is fixed so as not to fall out. The engaging portion is a projection projecting in the lateral direction, the upper surface of which is engaged with the inner edge of the engaging hole.

In addition, an inclined surface first guide surface is provided below the engaging portion, and an inclined surface second guide surface is similarly provided in the lower fitting portion. The first and second guide surfaces have an upper cone hooked to the lower corner casting of the upper container such that the connecting bracket is mounted to the upper container, the upper container is suspended by a crane, and the lower cone is hooked to the upper corner casting of the lower container. When combined, it works like this:

That is, as described above, since the projection-shaped engaging portion provided on one side of the lower cone is engaged from the inner side to the edge side of the engaging hole of the upper corner casting of the lower container, it is brought down from the vertically above the engaging position. Then, since the engaging portion interferes with the outer edge of the engaging hole, the lower cone cannot be inserted into the upper corner casting of the lower container. Accordingly, a first guide surface is provided below the engaging portion, and the first guide surface slides with respect to the outer edge of the engaging hole of the upper corner casting of the lower container so that the lower cone is displaced in a plane with respect to the engaging hole. Allow the engaging portion to pass through the engaging hole. Thus, the engaging portion passes through the engaging hole, and the lower cone is inserted into the upper corner casting of the lower container. In addition, a second guide surface is provided in the lower fitting portion, and the second guide surface slides relative to the outer edge of the engaging hole of the upper corner casting of the lower container after passing through the engaging portion to move the displaced lower cone back. The engaging portion is moved to a position engaging with the inner edge of the engaging hole. Therefore, the engaging portion enters the lower side of the edge side of the engaging hole and becomes capable of engaging from the inside thereof to the edge side of the engaging hole.

In addition, a third guide surface having an inclined surface shape is installed on the engaging portion, and the third guide surface operates as follows when separating the lower cone from the upper corner casting of the lower container.

That is, when the upper container is pulled up by the crane and a come-off load of a predetermined value or more is applied to the lower cone, the third guide surface is placed on the inner edge of the engaging hole of the upper corner casting of the lower container. By sliding relative to the lower cone in the plane displacement with respect to the engagement hole to allow the engagement portion to pass through the engagement hole. Thus, the engaging portion passes through the engaging hole in the disengaging direction so that the lower cone is released from the upper corner casting of the lower container.

As can be seen from the above operation, the locking engagement by the second locking engagement structure is set so as not to be released when an escape load of less than a predetermined value is applied, but to be released when an escape load of more than a predetermined value is applied. As a result, a relatively small high force is exerted as described above.

The connecting brackets having the two engaging structures for the lower cone are used as follows.

(Normal)

Manually attach the connecting brackets with the upper cones to the lower corner castings of the lower side of the upper container, which is attached by crane. At the start of this operation, the axis is in the first rotational stop position or the second rotational stop position, for example. The following describes the case where the axis is at the first rotation stop position. When the shaft is in the first rotation stop position, with respect to the rotation position of the upper and lower cones, the upper cone is in the engaging position, and the lower cone is in the engaging engagement release position. Subsequently, the crane is operated to move the upper container directly above the lower container to lower the vertically. Then, the sliding movement of the first guide surface and the sliding movement of the second guide surface in the second engagement structure are sequentially performed, and the lower cone is automatically engaged with the upper corner casting of the lower container. This completes the loading operation, and the upper and lower containers are connected with a relatively small high force. Fortunately, the container loading vessel is in good condition, unless the weather is good and the emergency conditions such as bad weather are encountered. The crane then pulls the top container vertically upwards from the bottom container by the crane when loading the vessel after arriving at its destination. Then, a sliding movement of the third guide surface in the second engagement structure is performed, so that the lower cone is automatically separated from the upper corner casting of the lower container. Therefore, it is not necessary to manually rotate the lower cone as in the prior art, so that the loading operation can be made easier. Subsequently, the upper cone is manually separated from the lower corner casting of the lower surface of the upper container which is suspended by a crane.

(In case of emergency)

In the case of an emergency such as bad weather in the course of the above elapsed time, according to the judgment of the crew, the high force due to the rotary connection structure is relatively high because the high force due to the second engagement mechanism is relatively small in the connection state of the upper and lower containers. Switch to the big one. That is, the sailor manually operates the shaft rotation manipulation means to rotate the shaft in one rotational direction and stops the shaft at the second rotation stop position by the shaft rotation stop means. The upper cone is still in the engaged position, while the lower cone is switched from the disengaged position to the engaged position, thereby exhibiting a very strong high force that the lower cone engages at the inner edge of the engaging hole. do. Therefore, even if the ship is greatly shaken, it is possible to prevent the load from collapsing or the outflow of the container. Subsequently, after the end of the emergency or after the arrival of the destination, the axial rotation stop means is manually released and the shaft is returned and rotated by the return spring to return the lower cone to the engagement release position. In this state, when the upper container is pulled up vertically upward from the lower container by the crane, sliding movement of the third guide surface in the second locking engagement structure is performed, and the lower cone is automatically separated from the upper corner casting of the lower container. Subsequently, the upper cone is manually separated from the lower corner casting of the lower surface of the upper container which is suspended by a crane.

Therefore, if it is used suitably as mentioned above, according to the objective of this invention, it becomes possible to improve the workability of a load operation, and to ensure the required high force according to a situation.

In addition, when the shaft is in the second rotation stop position as the initial position at the start of the normal operation, the lower cone is caught by the second cone in the step of attaching the connecting bracket to the lower corner casting of the lower surface of the upper container. An operation is performed to rotate the shaft from the second rotation stop position to the first rotation stop position so as to automatically engage the upper corner casting of the lower container with the coupling structure.

As shown in the above normal and emergency operation, the axis is stopped at the first rotational stop position as the basic state, and the time to be in this state is long. Therefore, the load on the return spring can be reduced by setting the return spring for rotating the shaft back to a neutral state (free state without elastic deformation) when the shaft is in the first rotation stop position. Paragraph 2).

In addition, as described above, in the second locking engagement structure of the lower cone, the projection engaging portion provided on one side of the lower cone is locked to one long edge side of the locking hole of the upper corner casting of the lower container. Since it is a structure, in the mounting state, that is, the case where the fitting portion is fitted to the engaging hole of the corner casting, the shaft is disposed eccentrically with respect to the center of the engaging hole in a direction close to the one long edge side, whereby the one long edge It is possible to set a large engagement depth of the engagement portion for the sides. Therefore, the engaging force of the projection engaging portion for corner casting is increased (claim 3).

However, if the shaft is eccentrically arranged in a direction close to one of the long edges of the engaging hole, the upper cone is also eccentrically arranged accordingly. If the length from the center to one end of the long cone of the upper cone and the length from the center of the shaft to the other end of the long cone of the upper cone are the same size, it is impossible to set a large engagement area for the corner casting of the upper cone. There is. Therefore, in the present invention, as described in claim 4, as a more suitable configuration, the length from the center of the shaft to one end of the longitudinal direction of the upper cone with respect to the dimensional relationship of the longitudinal direction in the planar shape of the upper cone and The length from the center of the shaft to the end of the other side in the longitudinal direction of the upper cone was set to be larger than the side arranged in the eccentric direction of the shaft at the time of engagement, thereby increasing the engagement area.

This also applies to the dimensional relationship in the short direction in the planar shape of the upper cone, and as described in claim 5, the length from the center of the shaft to one end of the short direction of the upper cone and the center of the shaft to the upper side. The length of the cone to the other end in the short direction is also set to be larger on the opposite side than the side arranged in the eccentric direction of the shaft at the time of engagement, thereby increasing the engagement area.

The same applies to the rotation engaging structure of the lower cone, and as described in claim 6, the length from the center of the shaft to one end portion of the lower cone in the longitudinal direction is different from the length of the lower cone in the longitudinal direction of the lower cone. The length to the end of the side was set to be larger on the opposite side than the side arranged in the eccentric direction of the shaft at the time of engagement, thereby expanding the engagement area.

Therefore, according to these structures, since the engaging area for the corner casting of the upper and lower cones is enlarged, the engaging force, that is, the container high force can be increased.

The present invention exhibits the following effects.

That is, according to the present invention having the above configuration, as described above, with respect to the structure of engaging the lower cone to the upper corner casting of the lower container or the socket on the deck, the rotating engaging coupling structure for rotating the lower cone, and the lower cone By having two locking mechanisms of the non-rotating second locking engagement structure which does not rotate, and using it suitably, it is possible to improve the workability of the unloading operation and to secure necessary high force according to the situation.

In addition to this, according to the configuration according to claim 2, the burden on the return spring can be reduced, and according to the configuration according to claim 3 or 6, the upper and lower cones are caught by the corner casting. Cohesion and, consequently, increase container high force.

1 is a front view of a container connection bracket according to a first embodiment of the present invention.
2 is a plan view of the connecting bracket.
3 is a right side view of the connecting bracket.
4 is a left side view of the connecting bracket.
5 is a plan sectional view of the connecting bracket.
6 is an explanatory view of the rotation position of the upper and lower cones.
7 is an explanatory view of the rotation position of the upper and lower cones.
8 is an explanatory view of the rotation position of the upper and lower cones.
9 is an explanatory view of an operating state of the connecting bracket.
10 is an explanatory view of the operating state of the connecting bracket.
11 is an explanatory view of the operating state of the connecting bracket.
12 is an explanatory view of an operating state of the connecting bracket.
13A and 13B are explanatory views of the engaging area of the upper cone.
14A and 14B are explanatory views of the engaging area of the lower cone.
15 is an explanatory view of the rotational position of the upper and lower cones in the second embodiment of the present invention.
16 is an explanatory view of the rotational position of the upper and lower cones in the embodiment.
17 is an explanatory view of the rotational position of the upper and lower cones in the third embodiment of the present invention.
18 is an explanatory view of the rotational position of the upper and lower cones in the embodiment.

Next, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)

1 is a front view of a container connecting bracket according to a first embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a right side view, FIG. 4 is a left side view, and FIG. 5 is a flat sectional view, respectively. 6 to 8 are explanatory views of the rotational positions of the upper and lower cones, and FIGS. 9 to 12 are explanatory views of the operating states of the connecting brackets, respectively. In view of its function and structure, the connecting bracket may be called a container high foil twist lock. In addition, the description in the following "Example" also demonstrates the case where a plurality of containers are stacked up and down. Therefore, when fixing the container on the deck, the "top container" in the following description is "container", "lower corner casting of the upper container" is "lower corner casting of the container", "lower container" is " "On the deck", "upper corner casting of the lower container" is replaced by "deck socket", respectively.

As shown in Figs. 1 to 5, the connecting bracket 1 is, first of all, a basic configuration, the lower corner casting 22 of the upper container 21 and the upper corner casting 25 of the lower container 24; Upper and lower fitting portions that are inserted into the locking holes 23 and 26 of the corner castings 22 and 25 in a state of being rotated and rested, respectively, above and below the plate-shaped support half 2a arranged to be sandwiched between them. A case (2b) integrally formed with (2b, 2c), a shaft (rotation shaft) 3 inserted through the case 2 so as to be rotatable in a vertical direction, and an upper end of the shaft 3 at the same time The upper cone 4 inserted into the lower corner casting 22 of the container 21 and the lower cone 5 inserted into the upper corner casting 25 of the lower container 24 while being installed at the lower end of the shaft 3. ) And shaft that rotates the shaft 3 in one rotational direction (by turning to the left when viewed from the top) by manual operation. The operating means 6, the return spring 10 for rotating the shaft 3 (rotating to the right when viewed from above), and the shaft 3 by a manual operation at a predetermined rotational position (in this embodiment, It has the axis rotation stop means 11 which stops in the 2nd rotation stop position (FIG. 7) and 3rd rotation stop position (FIG. 8) mentioned later.

As shown in FIG. 9, the lower corner casting 22 of the upper container 21 is attached to the lower surface of the upper container 21 among the upper and lower containers 21 and 24 stacked on each other, and is caught by the lower opening. It has the engaging hole 23, and the inside is hollow. As shown by the dotted line in Fig. 6, the locking engagement hole 23 is formed in a rectangular shape (the length in one direction of the plane is longer than the length in the direction orthogonal to this, hereinafter the same). ) Has a directionality with respect to the mounting (insertion of the fitting portion 2b and the cone 4), and similarly, the upper fitting portion 2b of the case 2 formed in a rectangular shape with a plane is rotated in It is fitted in the state.

As shown in FIG. 9, the upper corner casting 25 of the lower container 24 is attached to the upper surface of the lower container 24 among the upper and lower containers 21 and 24 that are stacked on each other, and opens on the upper surface. It has the engaging hole 26 and the inside is hollow. As shown by the dotted line in Fig. 6, the engaging hole 26 has an opening shape of a rectangular shape, which has a directional direction with respect to the mounting bracket 1, and here the case 2 has a flat surface in a rectangular shape. The lower fitting portion 2c of the c) is fitted in the state of being rotated and restrained in the direction.

The case 2 which has the support half 2a and the upper and lower fitting parts 2b and 2c integrally is divided into two left and right when viewed from the front as a component, and the left and right halves are bolted together. .

As shown in FIG. 5, the shaft 3 rotatably inserted into the case 2 has an arm-shaped contact portion 3a provided on the outer circumferential surface of the case 2 as shown in FIG. 5. It stops by contacting the stopper part 2d provided in the inner surface, and the stop position in the state which the said contact part 3a contacted the stopper part 2d is the 1st rotation stop position of the shaft 3, and its initial position. (Fig. 6). As described above, the case 2 has a structure in which the case 2 is divided into two left and right, so that the shape of the shaft 3 is simplified, thereby forming by high strength forging rather than casting.

The upper cone 4 is formed on the basis of a rectangular plane, and has an orientation with respect to the insertion into the engaging hole 23. In addition, the upper cone 4 is inserted into the lower corner casting 22 of the upper container 21 to be locked from the locking release position (open position, FIG. 8) (lock position). 6 or 7) the rotation engaging structure in which the engaging end portions 4a at both ends of the longitudinal direction of the cone 4 are engaged with the edge sides of the engaging holes 23 from the inside thereof, respectively. Have. In addition, when the upper cone 4 is mounted on the lower corner casting 22 of the upper container 21 on the upper portion of the upper cone 4, the cone in the engaging position (first position, Fig. 6) ( 4) is pressed against the outer edge of the engaging hole 23 of the lower corner casting 22 of the upper container 21 by sliding with the outer edge of the engaging hole 23, whereby the cone 4 The cam surface 4b which automatically rotates from the engagement position (the initial position, FIG. 6) to the engagement engagement release position (FIG. 8) is provided.

The lower cone 5 is also formed on the basis of a rectangular plane, and has a directionality with respect to the insertion into the engaging hole 26. In addition, the lower cone (5) is inserted into the upper corner casting (25) of the lower container (24) and the locking engagement release position (the locking engagement release position of the second locking engagement structure as the locking engagement release position of the rotary locking engagement structure is 6, the locking engagement ends 5a at both ends of the longitudinal direction of the cone 5 are engaged from the inside of the edge of the locking hole 26, respectively, when rotating from the inside to the locking engagement position (FIG. 7). It has a rotating locking engagement structure that is coupled, and when the projection is inserted into the upper corner casting (25) of the lower container 24, a projection-shaped locking engagement installed on one side (one long side) of the cone (5) without rotation. The portion 5b further has a non-rotating second locking engagement structure that engages from the inner side to the edge side (one long edge side) of the locking engagement hole 26.

In order to operate the second engaging structure, the outer edge of the engaging hole 26 of the upper corner casting 25 of the lower container 24 is mounted at the lower portion of the protrusion-shaped engaging portion 5b. Sliding movement with respect to the first guide surface of the inclined surface shape for displacing the lower cone (5) in the plane with respect to the engagement hole 26 so that the engagement portion 5b can pass through the engagement hole 26 ( 5c) is installed. In addition, on the side opposite to the lower fitting portion 2c, the engaging portion 5b passes through the engaging hole 26, and then the engaging hole 26 of the upper corner casting 25 of the lower container 24 is formed. Sliding movement with respect to the outer edge side, to move the displaced lower cone (5) to return to move the locking portion 5b to the position to engage the inner edge side of the engaging hole 26, 2 guide surface 5d is provided. In addition, the upper portion of the engaging portion 5b is engaged with the lower cone 5 by slidingly moving relative to the inner edge of the engaging hole 26 of the upper corner casting 25 of the lower container 24 at the time of separation. A third guide surface 5e having an inclined surface shape is provided so as to be displaced in the plane again with respect to the engaging hole 26 so that the engaging portion 5b can pass through the engaging hole 26 in the disengaging direction. These guide surfaces 5c, 5d, and 5e are all formed in a planar shape, thereby slidably moving in a line contact state with respect to the straight edges of the engaging hole 26.

Comparing the rotation locking engagement structure in the lower cone 5 with the non-rotating second locking engagement structure, the former rotation locking engagement structure has a high locking force (high force), and the latter second locking engagement structure is locked. Cohesion (hyperpulsion) is in a small relationship. Compared to the locking engagement by the former rotation locking coupling structure, in the latter second locking coupling structure, since the locking engagement portion with the upper corner casting 25 of the lower container 24 is biased to one side and the locking engagement area is small, The casting 25 becomes a bottleneck of structural strength, and the yield point and breaking load, which change from elastic deformation to plastic deformation, are lower than that of the rotationally engaged coupling structure. Accordingly, the possibility of residual deformation occurring in the corner casting 25 during bad weather encounters during ship operation is higher than that of the rotational engagement structure. However, while the former rotation engaging structure requires manual operation to rotate the cone 5 at the time of separation, the latter second engaging structure does not require manual operation, and does not require manual operation by a crane. 21) There is an operational merit of being automatically released when hanging up.

With respect to the rotational positions of the upper and lower cones 4 and 5, when the shaft 3 is in the first rotation stop position as shown in Fig. 6, the rotation locking engagement structure of the upper cone 4 is in the engaging position. , The rotation engaging structure of the lower cone (5) is in the locking release position, the second locking structure of the lower cone (5) is the engaging portion (5b) of the edge side (one side of the engaging hole 26) It is possible to operate by facing the long edge side). In addition, as shown in Fig. 7, when the shaft 3 is in the second rotation stop position by the shaft rotation stop means 11, the rotation locking engagement structure of the upper cone 4 is in the locking engagement position, and the lower side The rotating locking engagement structure of the cone 5 is also in the locking engagement position.

Axial rotation operation means 6 is a wire structure, in order to rotate the shaft 3 and the upper and lower cones 4 and 5 manually, as shown in FIG. 5, one end of the wire 7 is the shaft 3. While holding the grip 8 attached to the other end of the wire 7 while pulling the other end of the wire 7 to the outside of the case 2 while being fixed to the shaft 3 to surround the periphery of the wire 7, The shaft 3 and the upper and lower cones 4 and 5 rotate in one rotational direction (rotated to the left when viewed from above) against the elasticity of the return spring 10 (Figs. 6 to 7 to 8). Further, when the tension force is released, the shaft 3 and the upper and lower cones 4 and 5 are rotated back in the opposite direction (rotated to the right when viewed from above) by the elasticity of the return spring 10 (Fig. 8 to Fig. 7 →). 6).

The return spring 10 consists of the coil spring arrange | positioned around the shaft 3 in the inside of the case 2, and hangs one end to the case 2 side, and hangs the other end to the shaft 3 side. As described above, the shaft 3 rotated in one rotational direction by the shaft rotation manipulation means 6 is rotated back. When the shaft 3 rotates back, the wire 7 is also drawn into the case 2 accordingly.

The axial rotation stop means 11 is a wire lock structure in which the shaft 3 and the upper and lower cones 4 and 5 are rotated against the elasticity of the return spring 10 in the second rotation stop position (FIG. 7) or the third rotation. In order to stop in the stop position (FIG. 8), the piece member 9 provided in the middle of the wire 7 is provided with the mouthpiece member 12 and the compression spring 13 which press-fixes this to the case 2. The wire 7 is pulled out and stopped by engaging the notches 12a and 12b provided in the opening of the mouthpiece member 12. The notches 12a and 12b are formed at two upper and lower positions of the opening of the mouthpiece member 12, and the distance from the shaft 3 is set different from each other, so that the notches 12a (see FIG. 5) are close to each other. When the piece member 9 is engaged, the upper and lower cones 4 and 5 stop in the state shown in Fig. 7 (the second rotation stop position), and the piece member is placed on the far notch 12b (see Fig. 2). When 9 is engaged, the upper and lower cones 4 and 5 stop in the state of FIG. 8 (the third rotation stop position, that is, the engagement release position of the upper cone 4). Used to separate the connecting bracket from the lower corner casting (22) of the upper container (21).

The connecting bracket 1 of the above configuration is used as follows and operates as follows.

[1 when normal (when container is loaded)]

When loading the upper container 21 on the lower container 24, the connection bracket (1) with the upper cone (4) to the lower corner casting 22 of the lower surface of the upper container (21), which is first suspended by a crane, Manually mount it. Initially, the shaft 3 is in the first rotation stop position (Fig. 6) as its initial position, and with respect to the rotation positions of the upper and lower cones 4 and 5, the upper cone 4 is in the engaged position, and the lower side is The cone 5 is in the engaged release position. The operation | work which strongly presses the upper cone 4 of the state of FIG. 6 to the outer edge of the engaging hole 23 of the lower corner casting 22 of the upper container 21 is performed. Then, the cam surface 4b slides with the outer edge of the engaging hole 23 so that the upper cone 4 automatically rotates from the engaging position (FIG. 6) to the engaging engagement release position (FIG. 8). After passing through 23, the return spring 10 rotates by the elasticity of the return spring 10 to return to the engaged position (Fig. 6). Therefore, since the engaging end portion 4a of the upper cone 4 is locked to the edge side of the engaging hole 23 from the inside thereof so as not to be pulled out, the connecting bracket 1 is fixed to the upper container 21. It hangs in the lower corner casting 22 of the ().

Next, as shown in FIG. 9, the crane is operated to move the upper container 21 directly above the lower container 24 to lower it vertically. Then, the first guide surface 5c in the second engaging structure of the lower cone 5 contacts and slides to the outer edge of the engaging hole 26 of the upper corner casting 25 of the lower container 24. Accordingly, as shown in FIG. 10, the lower cone 5 is displaced in one direction on the plane (the arrow x direction in the drawing) with respect to the engagement hole 26, and the projection-shaped engagement portion 5b is engaged. It is to pass through the engaging hole (26). As described above, since the connection bracket 1 is suspended from the lower corner casting 22 of the upper container 21, the lower cone 5 is flat in one direction (arrow in the drawing) with respect to the engaging hole 26. in the x direction), the entire connecting bracket 1, the lower corner casting 22 which is tied to it, and the upper container 21 to which it is attached are also simultaneously displaced. In addition, when loading the containers 21 and 24, since the corner castings 22 and 25 are provided in four corners on the plane of the containers 21 and 24, four connection brackets 1 are used. In this case, the planar shape of the containers 21 and 24 is made into a rectangle, and the two connection brackets 1 used for the both ends of the long side of one side lengthen the protrusion direction of the protrusion-shaped engaging part 5b in one direction of a long direction. And the remaining two connecting brackets 1, which are used at both ends of the other long side, arrange the protruding direction of the protruding engaging portion 5b toward the other long side. Then, the former two connecting brackets 1 and the latter two connecting brackets 1 are displaced with respect to the engaging holes 26 in opposite directions, so that within the limit of this operation, the upper container 21 is a lower container. Rotate about 24. Since this rotation is a point symmetrical movement around the suspended portion of the crane, the rotation balance is good.

When lowering the upper container 21 further from the state of FIG. 10, as shown in FIG. 11, the lower cone 5 has a projection-shaped engaging portion 5b completely passing through the engaging hole 26, and then the lower side. The second guide surface 5d in the second locking engagement structure of the cone 5 contacts and slides on the outer edge side opposite the locking hole 26 of the upper corner casting 25 of the lower container 24. Accordingly, as shown in FIG. 12, the displaced lower cone 5 is moved back in the opposite direction to the one direction on the plane (in the direction of the arrow y in the drawing), and the protrusion-shaped engaging portion 5b is engaged. The edge of the engaging hole 26 is moved to a position engaged from the inside thereof. Therefore, even when the lower cone 5 tries to escape upward from the upper corner casting 25 of the lower container 24, the protrusion-shaped engaging portion 5b has its upper surface (that is, the third guide surface 5e). The lower cone 5 does not fall out because it is in a state of being engaged and detached from the inside of the edge 26 of the hole 26. In addition, the engaging engagement of the protrusion-shaped engaging portion 5b with respect to the inner edge of the engaging hole 26 is set so as not to be released when an escape load of a size smaller than a predetermined value is applied, and the later loading operation is performed. As shown in the figure, when a release load of a predetermined value or more is applied to a crane or the like, this engagement is automatically released. Therefore, the container high force by a 2nd engagement structure is comparatively small.

In the above procedure, the usual container loading operation is finished, and the upper and lower containers 21 and 24 are connected with a relatively small high force. As described above, the mounting of the lower container 24 to the upper corner casting 25 of the lower cone 5 by the second engaging structure is all performed by the sliding movement of the first and second guide surfaces 5c and 5d. It is done automatically.

[Normal 2 (loading)]

Fortunately, the connection state of the upper and lower containers 21, 24 is maintained in the same order as described above (unless the weather of the container loading vessel is good and the weather encounters in an emergency such as bad weather). . Accordingly, the lower cone 5 is engaged with the upper corner casting 25 of the lower container 24 by the second engaging structure. Subsequently, when the ship arrives at the destination and lowers the upper container 21, the upper container 21 is pulled vertically upward from the lower container 24 by a crane without manually manipulating the connecting bracket 1. At this time, the leaving cone 5 acts on the leaving load of the above predetermined value. Then, the third guide surface 5e in the second engaging structure of the lower cone 5 slides with respect to the inner edge side of the engaging hole 26 of the upper corner casting 25 of the lower container 24, As a result, as shown in FIG. 11, the lower cone 5 is displaced again in one direction in the plane with respect to the engaging hole 26, and the projection-shaped engaging portion 5b is moved with respect to the engaging hole 26. Allow it to pass. Therefore, as shown in FIG. 10, the projection-shaped engaging portion 5b passes through the engaging hole 26 in the disengaging direction, and the lower cone 5 moves from the upper corner casting 25 of the lower container 24. It is separated automatically. Therefore, since the lower cone 5 does not need to be manually rotated as in the conventional art, the loading operation can be facilitated by this amount. Subsequently, manual operation (stop the shaft 3 at the third rotation stop position (Fig. 8) by the shaft rotation stop means 11) from the lower corner casting 22 of the lower surface of the upper container 21 in the state of being suspended by a crane. To separate the upper cone (4).

[1 in case of emergency]

In the midst of the above process, for example, when a ship encounters bad weather, or when there is a danger of bad weather, the connection state of the upper and lower containers 21 and 24 is determined according to the judgment of the crew. From this relatively small thing, the high force by a rotation connection structure changes into a comparatively big thing. That is, the sailor manually operates the shaft rotation manipulation means 6 to pull the wire 7, and rotates the shaft 3 from the initial position (FIG. 6) in one rotational direction (rotation to the left when viewed from above). And stops at the second rotation stop position (Fig. 7) by the axial rotation stop means (11). The upper cone 4 is then still in the engaged position, while the lower cone 5 switches from the unlocked position to the engaged position, so that the lower cone 5 has its engaging end 5a. A very strong high force that is engaged from the inside to the edge side of the engaging hole 26 is exerted. This strong high force does not allow the lower cone 5 to fall out of the upper corner casting 25 even when a breakaway load of a predetermined value or more is applied. Therefore, even if the ship is greatly shaken, it is possible to prevent the load from collapsing or the leakage of the container.

[In emergency 2 (when container gets off)]

Subsequently, after the end of the emergency or after the arrival of the destination, the axial rotation stop means 11 is manually released, the shaft 3 is returned by the elasticity of the return spring 10, and the lower cone 5 is moved to the engaged release position. Return (FIG. 6). Accordingly, the lower cone 5 returns to a state of being engaged to the upper corner casting 25 of the lower container 24 by the second engaging structure. Subsequently, when lowering the upper container 21, the upper container 21 is pulled up vertically from the lower container 24 with a crane, without carrying out the manual fitting of the coupling tool 1 in particular. At this time, the leaving cone 5 acts on the leaving load of the magnitude | size more than the said predetermined value. Then, the third guide surface 5e in the second engaging structure of the lower cone 5 slides with respect to the inner edge side of the engaging hole 26 of the upper corner casting 25 of the lower container 24, As a result, as shown in FIG. 11, the lower cone 5 is displaced again in one direction in the plane with respect to the engaging hole 26, and the projection-shaped engaging portion 5b is moved with respect to the engaging hole 26. Allow it to pass. Therefore, as shown in FIG. 10, the projection-shaped engaging portion 5b passes through the engaging hole 26 in the disengaging direction, and the lower cone 5 moves from the upper corner casting 25 of the lower container 24. It is separated automatically. Therefore, after releasing the axial rotation stop means 11, it is not necessary to manually rotate the lower cone 5 as in the conventional art, so that the load operation of the upper container 21 can be made easier. can do. Subsequently, manual operation (stop the shaft 3 at the third rotation stop position (Fig. 8) by the shaft rotation stop means 11) from the lower corner casting 22 of the lower surface of the upper container 21 in the state of being suspended by a crane. To separate the upper cone (4).

Therefore, if it is used suitably as mentioned above, since it is not necessary to operate the connecting tool 1 manually when lowering the upper container 21, the workability of the container unloading operation can be improved and it is also necessary according to a situation. High force can be secured.

In addition, as shown in the above-mentioned normal and emergency operation, the state where the shaft 3 is stopped at the first rotation stop position (Fig. 6) becomes a basic state, and the actual time for which the state is in this state is the longest. Therefore, with respect to the return spring 10 which rotates and rotates the shaft 3, by setting it to the neutral state (free state which is hardly elastically deformed) when the shaft 3 is in the 1st rotation stop position (FIG. 6). The burden on the return spring 10 can be reduced.

In addition, as described above, the second locking engagement structure of the lower cone 5 has a locking engagement hole (5b) in which the projection-shaped locking engagement portion 5b provided on one side surface of the lower cone 5 has a rectangular shape. Since it is a structure that is engaged without being rotated to one long edge side of 26, the mounting state, that is, the fitting portion 2c of the case 2 is fitted in the engaging hole 26 of the corner casting (25) Figure 6 As shown in the figure, the one long edge side of the shaft 3 with respect to the center O _{1 of the} engagement hole 26 (the position where the long direction center line and the short direction center line of the engagement hole 26 intersect). By eccentrically arranging in a direction approaching (the right edge in FIG. 6) close to (the long edge on the right side in FIG. 6), the engagement depth of the engagement portion 5b with respect to the one long edge side is set large. It becomes possible. Therefore, in this embodiment, from this point of view, the direction in which the shaft 3 is close to the one long edge side (the long edge side on the right side in FIG. 6) with respect to the center O ₁ of the engaging hole 26 ( 6 is eccentrically arranged, and the engaging force of the engaging portion 5b of the projection shape with respect to the corner casting 25 is increased.

In addition, when the shaft 3 is eccentrically arranged in a direction approaching one of the long edges of the engaging hole 26 in this manner, the upper cone 4 is also eccentrically arranged accordingly, so that the upper cone 4 As shown in (A) of FIG. 13, with respect to the rotation engaging structure, one end in the longitudinal direction of the upper cone 4 from the center O ₂ of the shaft 3 in the planar shape of the upper cone 4. (4c) is set at the same size, the length (L ₂₎ to the length (L ₁₎ and the shaft 3, the center upper cone 4, the longitudinal direction other end (4d) of from (O ₂₎ of up to (L ₁ = L ₂ ), the engagement area (contact area during engagement) of the upper cone 4 of the corner casting 22 cannot be set sufficiently large, and the engagement area is the upper cone 4. Unbalance may occur at both ends of the rod, resulting in unstable engagement. Therefore, in the embodiment, even the center of such a preferred configuration, as shown in (B) of Figure 13, for a long dimension relationship on the flat of the upper cone 4, the shaft (3) (O ₂₎ From the length L ₁ to the one end 4c in the long direction of the upper cone 4 and the center O ₂ of the shaft 3 from the end 4d of the other side in the long direction of the upper cone 4. that the length (L _2), the engaging state is arranged on the other side than the (first or second rotation stop position) to (L ₂₎ is arranged in the eccentric direction (the figure, the right direction) of the shaft (3) in ( L ₁ ) is set large (L ₁ > L ₂ ), and the engagement area is enlarged accordingly.

Similarly, with respect to the rotation engaging structure of the upper cone 4, the length from the center O ₂ of the shaft 3 in the planar shape of the upper cone 4 to one end portion of the upper cone 4 in the short direction. When the length from the center O ₂ of the axial axis 3 to the other end in the short direction of the upper cone 4 is set to the same size (not shown), the corner casting 22 of the upper cone 4 The locking engagement area (contact area during locking engagement) cannot be set sufficiently large, and the locking engagement state may become unstable because the locking engagement area becomes unbalanced at the long ends of the upper cone 4. Therefore, in the embodiment, even the center of such a preferred configuration, shown in FIG. 13 (B), for the transverse direction dimensional relationship on the flat of the upper cone 4, the shaft (3) (O ₂₎ From the length L ₃ to the one end 4e in the short direction of the upper cone 4 and the center O ₂ of the shaft 3 from the end 4f of the other side in the short direction of the upper cone 4. that the length (L _4), the eccentric direction of the engaged state the axis (first or second rotation stop position) (3) are disposed on (in the figure the right) which is disposed on the other side than the (L ₄₎ ( L ₃ ) is set large (L ₃ > L ₄ ), and the engagement area is enlarged accordingly.

Similarly, with respect to the rotation engaging structure of the lower cone 5, as shown in Fig. 14A, the lower cone from the center O ₂ of the shaft 3 in the planar shape of the lower cone 5 is formed. Length L ₅ to one end 5f of the long direction of ( ₅ ), and length from the center O ₂ of the shaft 3 to the end 5g of the other direction of the lower cone 5 ( When L ₆ ) is set to the same size (L ₅ = L ₆ ), the engaging area (contact area at the time of engaging engagement) for the corner casting 25 of the lower cone 5 cannot be set sufficiently large, and Since the engagement area becomes unbalanced at both ends of the lower cone 5, the engagement state may become unstable. Therefore, in the embodiment, even the center of a desired configuration, as shown in FIG. 14 (B), for the longitudinal direction dimension between the flat on the lower cone 5, a shaft (3) (O ₂₎ From the length L ₅ and the center O ₂ of the shaft 3 to the one end 5f of the longitudinal direction of the lower cone 5 from the other end 5g of the lower direction of the longitudinal direction of the lower cone 5. The length of L ₆ is arranged on the opposite side than that of the shaft (3 in the second rotational stop position) in the eccentric direction (right direction in the drawing) of the shaft 3 (L ₆ ) (L ₅ ) It is set large, and (L _5> L _6), there are engaging area is to be enlarged accordingly.

Therefore, according to the above structure, since the engaging area (contact area at the time of engaging engagement) with respect to the corner castings 22 and 25 of the upper and lower cones 4 and 5 respectively expands, the engaging force, ie, the container high force, can be increased. In addition, it becomes easy to secure 800 mm ² of the ISO prescribed area. In addition, since the balance of the size of the engaging area is improved at both ends of the upper and lower cones 4 and 5 in the longitudinal direction, the engaging state can be stabilized by this amount.

(Second embodiment)

Further, in the first embodiment, the starting position of the shaft 3 is in the locking engagement position of the upper cone 4, and the rotation locking engagement structure of the lower cone 5 is the engagement release position. And a first rotation stop position (FIG. 6) in which the second engagement structure is operable, but not limited thereto, for example, the rotation engagement structure of the upper cone 4 and the lower cone 5; The rotation locking engagement structure of the structure may be a second rotation stop position in the locking engagement position.

From this point of view, in the second embodiment, as shown in Fig. 15, both the rotation engaging structure of the upper cone 4 and the rotating engaging structure of the lower cone 5 are locked in the initial position of the shaft 3. It is in the second rotation stop position at the engaged position, and from this state the wire 7 of the shaft rotation control means 6 is pulled out to close the piece member 9 of the shaft rotation stop means 11. 12a), the rotary locking engagement structure of the upper cone 4 is in the locking position, and the rotary locking engagement structure of the lower cone 5 is in the locking release position as shown in FIG. 2 The engaging engagement structure is the first rotational stop position in which it is operable. Further, when the wire 7 of the shaft rotation control means 6 is further pulled out and the piece member 9 of the shaft rotation stop means 11 is engaged with the notch 12b at the far side, the upper cone 4 The rotation locking engagement structure becomes a third rotation stop position which becomes the locking engagement release position. However, in this example, since the return spring 10 is set to the neutral state at the second rotation stop position (FIG. 15), the return spring 10 is neutral at the first rotation stop position. The invention is excluded from the subject.

In addition, in the first embodiment, as shown in Fig. 6, the planar shape of the upper and lower cones 4 and 5 is arranged in a direction in which the respective longitudinal directions are substantially orthogonal, but the upper and lower cones 4 and 5 The crossing angle of the long direction in planar shape is not limited to right angle, It does not specifically limit.

From this point of view, in the second embodiment shown in Figs. 15 and 16, the intersecting angle θ ₁ in the longitudinal direction in the planar shape of the upper and lower cones 4 and 5 is about 33 degrees (the longitudinal direction of the upper cone 4). The long direction of the lower cone 5 is set in the axial rotation direction (rotated to the left in the drawing) by about 33 degrees on the basis of.

(Third embodiment)

In addition, in the third embodiment shown in Figs. 17 and 18, the intersecting angle θ ₂ of the longitudinal direction in the planar shape of the upper and lower cones 4 and 5 is about 110 degrees (the longitudinal direction of the upper cone 4). As a reference, the long direction of the lower cone 5 is set in the axial rotation direction (rotated to the left in the figure) by about 110 degrees), and according to the verification of the inventors, the planar shape of the upper and lower cones 4 and 5 is determined. In the case shown in Figs. 17 and 18, the angle setting allows the largest engagement area (contact area during engagement) of the cones 4 and 5 to the corner castings 22 and 25. In general, the intersecting angle in the longitudinal direction in the planar shape of the upper and lower cones 4 and 5 is 100 to 120 degrees (the longitudinal direction of the lower cone 5 is based on the longitudinal direction of the upper cone 4). It is appropriate to set in the range of rotation (about 100-120 degree displacement) in the direction of rotation (turn left in the drawing).

Other configurations and operation effects in the second and third embodiments are the same as in the first embodiment. Also in the second and third embodiments, as shown in Fig. 16 or 18, the second engagement structure of the lower cone 5 is a projection of a protrusion provided on one side of the lower cone 5; The coupling portion 5b is configured to be engaged without being rotated to one long edge side of the engagement hole 26, and to increase the engagement depth of the engagement portion 5b with respect to the one long edge side. For setting, the shaft 3 is arranged eccentrically in a direction closer to the one long edge side with respect to the center O ₁ of the engaging hole 26 in a state where the fitting part is fitted into the engaging hole 26. It is. Moreover, with respect to the dimensional relationship of the longitudinal direction in the planar shape of the upper cone 4, the length L ₁ from the center O ₂ of the shaft 3 to the one end 4c of the longitudinal direction of the upper cone 4 is _one . The length L ₂ from the center O ₂ of the shaft 3 to the other end 4d in the longitudinal direction of the upper cone 4 is disposed in the eccentric direction of the shaft 3 in the engaged state. The side L ₁ which is disposed on the opposite side from the side L ₂ is set larger (L ₁ > L ₂ ), thereby expanding the engaging area. The length L ₃ from the center O ₂ of the shaft 3 to one end 4e of the shorter direction of the upper cone 4 with respect to the dimensional relationship in the short direction in the planar shape of the upper cone 4. The length L ₄ from the center O ₂ of the shaft 3 to the other end 4f in the short direction of the upper cone 4 is disposed in the eccentric direction of the shaft 3 in the engaged state. The side L ₃ which is disposed on the opposite side from the side L ₄ is set larger (L ₃ > L ₄ ), whereby the engagement area is enlarged. Furthermore, with respect to the dimensional relationship in the longitudinal direction in the planar shape of the lower cone 5, the length L ₅ from the center O ₂ of the shaft 3 to one end 5f of the longitudinal direction of the lower cone _5. ) And the length L ₆ from the center O ₂ of the shaft 3 to the other end 5g in the longitudinal direction of the lower cone 5 are arranged in the eccentric direction of the shaft 3 in the engaged state. The side L ₅ disposed on the opposite side of the side L ₆ is set larger (L ₅ > L ₆ ), thereby expanding the engaging area.

1: Connecting bracket
2: case
2a: support half
2b, 2c: fitting
2d: stopper part
3: axis
3a: contact
4: upper cone
4a, 5a: engaging end
4b: cam surface
4c, 4d, 5f, 5g: long direction end
4e, 4f: short direction end
5: lower cone
5b: engaging portion
5c: first guide surface
5d: second guide surface
5e: third guide surface
6: shaft rotation control means
7: wire
8: grip
9: piece member
10: return spring
11: shaft rotation stop means
12: mouthpiece member
12a, 12b: notch
13: compression spring
21: top container
22: lower corner casting
23, 26: engaging hole
24: bottom container
25: upper corner casting

Claims (6)

A plate-shaped support panel portion arranged to fit between the lower corner casting of the upper container and the upper corner casting of the lower container or between the lower corner casting of the container and the socket on the deck. A case integrally formed with a fitting portion fitted in a state where it is rotated and stopped in the engagement hole of the corner casting or socket, respectively, above and below a shaft, a shaft rotatably inserted through the case, and installed at an upper end of the shaft, An upper cone inserted into the corner casting, a lower cone installed at the bottom of the shaft and inserted into the upper corner casting or the socket, and an axis for rotating the shaft in one rotation by manual operation. Rotation operation means, a return spring for rotating the shaft back, and manual operation Axis has a shaft rotation stopping means for stopping at the predetermined rotational position,
The upper cone has a rotation locking engagement structure in which the cone is engaged with the inner edge of the locking engagement hole when inserted into the lower corner casting and rotated from the locking release position to the locking engagement position.
The lower cone has a rotation locking engagement structure in which the cone is engaged with the inner edge of the locking hole when the lower cone is inserted into the upper corner casting or the socket and rotates from the locking release position to the locking engagement position. The projection-shaped engaging portion provided on one side of the cone does not rotate when inserted into the socket, and further has a non-rotating second locking structure engaged with the inner edge of the engaging hole. Sliding movement of the upper corner casting or the outer edge of the engaging hole of the socket during mounting to actuate the structure allows the lower cone to be displaced in a plane with respect to the engaging hole so that the engaging part can pass through the engaging hole. The first guide surface of the inclined surface shape is installed below the engaging portion, and the locking An inclined surface that moves the displaced lower cone to a position to engage the inner edge of the engaging hole by sliding the displaced lower cone by sliding the outer corner of the engaging hole of the upper corner casting or the socket after passing through the mating portion. The second guide surface of the shape is installed in the lower fitting portion, and when the separation is performed, the lower cone is displaced in a plane with respect to the locking hole by slidingly moving with respect to the inner edge side of the locking hole of the upper corner casting or the socket so that the locking portion is locked. A third guide surface having an inclined surface which allows the coupling hole to pass therethrough is provided on the upper portion of the engaging portion,
The shaft can be stopped at the first rotation stop position and the second rotation stop position, the rotation angles being different from each other, and in the first rotation stop position, the rotation engaging mechanism of the upper cone is in the engaging position, and the lower cone The rotation locking engagement structure is in the locking engagement release position, and the second locking engagement structure enables the locking engagement portion to face the engaging engagement hole in the front, and in the second rotation stop position, the locking engagement coupling of the upper cone and the lower locking position. The rotating locking coupling structure of the cone is in the locking engagement position,
In normal use of the connecting bracket, the shaft stops at the first rotational stop position, the lower cone is automatically engaged with the upper corner casting or socket in the second locking engagement structure, and is automatically released.
When reinforcing the high force of the connecting bracket, the shaft stops at the second rotation stop position, the lower cone is connected to the upper corner casting or the socket in the rotary locking coupling structure, characterized in that the connector for the container. The method of claim 1,
The return spring is set in a neutral state at the first rotational stop position of the shaft. The method of claim 1,
The second engaging structure of the lower cone is a structure in which the projection-shaped engaging portion provided on one side of the lower cone is engaged with one long edge of the upper corner casting or the engaging hole of the socket. The container is characterized in that the shaft is arranged eccentrically in a direction closer to the edge side with respect to the center of the engagement hole in a state where the fitting portion is fitted into the engagement hole in order to set the engagement depth of the engagement portion with respect to the engagement engagement portion. Dragon bracket. The method of claim 1,
The second engaging structure of the lower cone is a structure in which the projection-shaped engaging portion provided on one side of the lower cone is engaged with one long edge of the upper corner casting or the engaging hole of the socket. In order to set a large engagement depth of the engagement portion with respect to the engagement portion, the shaft is disposed eccentrically in a direction closer to the edge side with respect to the center of the engagement aperture with the fitting portion fitted in the engagement aperture,
In the rotary locking engagement structure of the upper cone, one end of the long cone of the upper cone is engaged with one long edge of the engaging hole while the other end of the long cone is connected to the other long edge of the engaging hole. It is a structure that is engaged, and the length from the center of the shaft to one end of the longitudinal direction of the upper cone and the end of the longitudinal direction of the upper cone the other side in order to set a large engagement area of the both ends to the both edge sides The length of the up to container container connecting brackets, characterized in that the side arranged on the opposite side than the side arranged in the eccentric direction of the shaft at the time of engagement. The method of claim 1,
The second engaging structure of the lower cone is a structure in which the projection-shaped engaging portion provided on one side of the lower cone is engaged with one long edge of the upper corner casting or the engaging hole of the socket. In order to set a large engagement depth of the engagement portion with respect to the engagement portion, the shaft is disposed eccentrically in a direction closer to the edge side with respect to the center of the engagement aperture with the fitting portion fitted in the engagement aperture,
In the rotary locking engagement structure of the upper cone, one end of the long cone of the upper cone is engaged with one long edge of the engaging hole while the other end of the long cone is connected to the other long edge of the engaging hole. It is a structure that is engaged, the length from the center of the shaft to one end in the short direction of the upper cone and the end of the other side in the short direction of the upper cone in order to set a large engagement area of both ends with respect to both edge sides. The length of the up to container container connecting brackets, characterized in that the side arranged on the opposite side than the side arranged in the eccentric direction of the shaft at the time of engagement. The method of claim 1,
The second engaging structure of the lower cone is a structure in which the projection-shaped engaging portion provided on one side of the lower cone is engaged with one long edge of the upper corner casting or the engaging hole of the socket. In order to set a large engagement depth of the engagement portion with respect to the engagement portion, the shaft is disposed eccentrically in a direction closer to the edge side with respect to the center of the engagement aperture with the fitting portion fitted in the engagement aperture,
The rotating engagement mechanism of the lower cone has one end in the long direction of the lower cone engaged with one long edge of the engagement hole while the other end in the long direction is connected to the other long edge of the engagement hole. It is a structure that is engaged, and the length from the center of the shaft to one end of the long direction of the lower cone and the end of the other direction of the lower cone from the center of the shaft in order to set the engaging area of both ends with respect to the both edge sides large The length of the up to container container connecting brackets, characterized in that the side arranged on the opposite side than the side arranged in the eccentric direction of the shaft at the time of engagement.

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