WO2004108564A1

WO2004108564A1 - Container connecting metal fixture

Info

Publication number: WO2004108564A1
Application number: PCT/JP2003/006960
Authority: WO
Inventors: Yoshitaka Watanabe
Original assignee: Kabushiki Kaisha Marifit; Kabushiki Kaisha Sanwa
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2004-12-16
Also published as: US20050191124A1; EP1666378A1; CN1688497A; JPWO2004108564A1; EP1666378A4; TW200427594A

Abstract

A container connecting metal fixture comprising a metal fixture main body (2) having an upper fitting section (22) and a lower fitting section (23) fittable in locking holes in corner metal fixtures for a container, a shaft (3) rotatably journaled in the metal fixture main body (2), an upper metal fixture (4) and a lower metal fixture (5) integrally connected to the upper and lower ends of the shaft (3), respectively, and lockable in locking holes in corner metal fixtures for the container, and an operating member (7) for rotating the shaft. The metal fixture main body (2) is provided with a turning mechanism (6) for turning the shaft (3) by a load acting on the container, and the shaft (3) is provided with a spring means (34) urging the upper metal fixture (4) to turn to a position where it overlaps the upper fitting section (22). The upper metal fixture (4) is formed with a notch (4x) at a corner on the lower surface side at a diagonal position on the side of the container where the corner metal fixture engages an engaging hole.

Description

Specifi cations' Container connection metal

TECHNICAL FIELD The present invention relates to a container connecting fitting that is disposed between upper and lower containers stacked in a multi-tier and connects both containers in a container yard, a container ship, or the like. Background art

Generally, as shown in Fig. 22, container Ct is loaded and unloaded between container yard Yd and container ship Sh.

For example, when loading the container Ct of the container yard Yd onto the container ship Sh, the transfer of the container Ct from the container yard Yd by using a transfer crane Tc or by using a straddle carrier is carried out by a trailer or the like. After transferring to container transport vehicle V, transport to apron Ap. Then, in the apron Α, ρ, the container C t is replaced with a container crane. Lift it with the spreader S of r and place it in the container C t on the deck of the container ship Sh.

On the other hand, when unloading the container Ct on the deck of the container ship Sh, the container Ct is lifted via the spreader Sp of the container crane Cr, moved to the apron Ap, and then moved to the container crane Cr. Transfer container C t to container transport vehicle V from, and transport from apron Ap to container yard Y d.

As described above, when the container Ct is stacked in multiple stages in the container yard Yd, the container ship Sh, etc., the corner fittings provided at the lower four corners of the upper container Ct in order to prevent the collapse of the container Ct. And the corner fittings provided in the upper four corners of the lower container Ct, and are respectively connected to the container fittings so as to be connected to each other.

Such a container connection fitting is described, for example, in International Publication WO92 / 05093. First, the container connecting fitting 10 ° will be described with reference to FIGS. 23 to 26.

The container connection fitting 100 is composed of a metal body 101 that can be divided into right and left, which is integrally fastened by bolts, and a shaft 102 that is rotatably supported by the metal body 101 (Fig. 26). ), And an upper cone 103 and a lower cone 104 integrally connected to the upper and lower ends of the shaft 102, respectively.

The metal fitting body 101 has an upper fitting part 101 U and a lower fitting part 101 D that match the shape of the fitting hole Fa (see Fig. 29) of the corner fitting F of the container Ct. The upper fitting portion 101U and the lower fitting portion 101D are provided integrally on the upper and lower sides of the upper container Ct. The upper corner of Ct can be fitted into the engagement hole Fa of the bracket F.

In addition, a through hole (not shown) is formed in the metal fitting body 101 through the upper fitting portion 101 U and the lower fitting portion 101 D, and the through hole (not shown) is formed in the through hole. 2 is pivoted.

Although not shown in detail, the corner fitting F of the container Ct is specified in JIS Z1616 together with the engagement hole Fa.

On the other hand, the upper cone 103 and the lower cone 104 can be engaged with the engaging holes Fa of the corner fittings F of the container Ct, and have shapes corresponding to the engaging holes Fa of the corner fittings F, respectively. Is formed. The upper cone 103 and the lower cone 104 are connected to the upper surface of the upper fitting portion 101 U of the bracket main body 101 and the lower fitting portion 1 by the rotation of the shaft 102. The upper cone 103 and the lower cone 104 are inserted into and disengaged from the engagement hole Fa of the lower corner fitting F of the upper container Ct. When free, the lower cone 104 engages with the engagement hole Fa of the upper corner fitting F of the lower container Ct, and the lower cone 104 engages the upper corner fitting of the lower container Ct. When the upper cone 103 can be freely inserted into and removed from the engagement hole Fa of F, the upper cone 103 can be engaged with the engagement hole Fa of the lower corner fitting F of the upper container Ct, as viewed from above. It crosses in a letter shape and is integrally connected to the shaft 102.

In addition, when the lower cone 104 is pressed by the engaging hole Fa of the corner fitting F when the lower cone 104 is engaged with the engaging hole Fa of the corner fitting F, a rotational force is applied. Shape to shape Has been established. That is, when the shaft 102 is at the first rotation position A described later and the lower cone 104 is engaged with the engagement hole Fa of the corner fitting F, the lower cone 104 is connected to the corner fitting F. When pressed against the hole edge of the engagement hole F a, the pressing force is applied to the corner fitting F via the lower cone 104, while the reaction force is received by the lower cone 104. The lower cone 104 is formed so as to be rotated around the rotation axis of the shaft 102 by a reaction force against the lower cone 104.

On the other hand, as shown in FIG. 26, inside the bracket main body 101, a first locking portion 101a to which an arm 10021 fixed to the shaft 102 can abut. A cavity 110 X having a second locking portion 101 b is formed. For this reason, the shaft 1021,0 is moved from the first rotation position A where the arm 1021 abuts the first locking portion 101a of the cavity 101X to the second locking portion. It can rotate over a third rotational position C that abuts 101b.

The shaft 102 is provided with a torsion spring 105. Usually, the shaft 102 has its arm 1002 1 as the first locking portion 1 O of the cavity 100X. abut on la

15 Further, a wire 106 is wound around the shaft 102 along a groove 102 formed around the shaft 102. One end loop of the wire 106 is formed by an arm 1′0 2 1 and the other end is pulled out through a mouthpiece 107 slidably disposed on the bracket body 101, and the operation knob

'It is fixed at 108. A locking member 10061 is formed in the vicinity of the other end of the wire 106, and the left and right ends of the locking member 1061 are guides 10 of the metal fitting body 101. Mouthpiece 107 slidably fitted to 1Y can be selectively locked to slots 107a, 107c formed at the upper and lower portions. The mouthpiece 107 has its left and right ends fitted to the guide 101Y of the bracket body 101, and is slidably disposed along the guide 101Y. 5 It is urged by a spring 109 arranged on the main body 101 so as to contact one end of the guide 101Y.

In order to connect the upper and lower containers ct with the container connecting fitting 100 having such a structure, first, the container ct is transferred from the container yard Yd to the container transport vehicle V using the transfer crane Tc. Transport to Apron Ap You. Then, at the apron Ap, the container Ct is lifted by the spreader Sp of the container crane Cr at a height of about 1 m above the ground and stopped, and the upper cone 103 of the container connection fitting 100 is moved to the container Ct. Attach it to the lower corner bracket F (see Fig. 27). Specifically, the operating knob 108 is gripped and pulled, and the locking member 1061 of the wire 106 is locked to the slot 107a of the mouthpiece 107. In this state, the shaft 102 is located at the third rotation position C where the arm 102 1 abuts the second locking portion 101 b of the cavity 101 X of the metal fitting body 101, and the upper cone 1 03 is located at a position overlapping with the upper fitting portion 101U of the metal fitting body 101 when viewed from above. For this reason, the upper cone 103 can be inserted into the engagement hole Fa of the lower corner fitting F of the upper container Ct together with the upper fitting portion 101U of the fitting body 101. When the upper cone 103 is inserted into the engagement hole Fa, the playback operation knob 108 is gripped and pulled, and the locking member 1061 of the wire 106 is inserted into the slot 107 of the mouthpiece 107. When the shaft 102 is disengaged from the shaft 102, the arm 1021 of the shaft 102 is brought into contact with the first locking portion 101a of the cavity 110X of the bracket body 101 by the urging force of the torsion spring 105. Returns to one rotation position A. In this state, as described above, the upper cone 103 and the lower cone 104 of the container connecting fitting 100 engage with the engaging holes Fa of the corner fittings F, respectively. It does not fall off the corner fitting F of the nut Ct (see Fig. 28).

If the container connecting fitting 100 is attached to the lower corner fitting F of the container Ct, the container Ct is lifted by the container crane Cr and placed on the container Ct on the deck of the container ship Sh (see Fig. 29). ). In this case, the lower cone 104 of the container connection fitting 100 is forced along the hole edge of the engagement hole Fa of the upper corner fitting F of the container Ct against the urging force of the torsion spring 105. When the lower cone 104 is rotated and the lower cone 104 overlaps with the lower fitting portion 101D of the fitting body 101 when viewed from above, the lower cone 104 becomes lower fitting portion 100 of the fitting body 101. Along with 1D, it is fitted into the engaging hole Fa of the upper corner fitting F of the container Ct. When the lower cone 104 fits into the upper corner fitting F, the lower cone 104 returns to the re-engagement position by the urging force of the torsion spring 105 and engages with the engagement hole Fa of the corner fitting F. I do. As a result, the upper and lower containers C t correspond to the lower corner fitting F of the upper container C t and the lower corner fitting F of the container connecting bracket 100. They are connected by an upper cone 103 and a lower cone 104 respectively engaged with the upper corner fitting F of the lower container Ct (see FIG. 30).

On the other hand, when unloading the container Ct on the deck of the container ship Sh, lower the lower cone 104 at the engagement position from above the deck by pulling down or pushing down the operation knob 108 to defeat the mouthpiece. The locking member 106 of the wire 106 is locked to the slot 107 c of 107. In this state, the shaft 102 has its arm 1002 1 between the first engagement north portion 1 O la of the cavity 100 1 X of the bracket body 101 and the second engagement portion 10.1 b. Is located at the second rotation position B of the lower container C t, since the lower cone 104 overlaps with the lower fitting portion 101 D of the metal fitting body 101 when viewed from above. Can be disengaged from the engagement hole Fa (see FIG. 31).

Next, the container Ct is lifted and moved via the spreader Sp of the container crane Cr and stopped at a height of about 1 m above the apron Ap, and then from the lower corner fitting F of the container Ct. Remove the upper cone 103 of the container connection fitting 100. That is, the operating knob 108 is gripped and pulled, and the locking member 1061 of the wire 106 is locked to the slot 107a of the mouthpiece 107. In this state, as described above, the shaft 102 is in the third rotational position where its arm 1021 abuts the second locking portion 101b of the cavity 101X of the bracket body 101. C, the upper cone 103 overlaps with the upper fitting portion 101U of the bracket main body 101 when viewed from above. For this reason, the container connecting fitting 100 can be detached from the engaging hole Fa of the lower corner fitting F of the container Ct (see FIG. 32). After this, container Ct is transferred from container crane Cr to container transport vehicle V, and transported from apron to container yard Yd. Disclosure of the invention

In the conventional container connection fitting described above, when loading a container, it is attached to the lower corner fitting of the container to be loaded, and if it is placed on the container, the lower cone is fitted with the engagement hole of the upper corner fitting of the lower container. When it rotates along the edge of the hole and fits into the corner fitting, the torsion spring automatically returns to the position where it engages with the corner fitting, and the upper and lower containers can be connected, but when unloading the container, It is necessary to operate the operating knob to rotate the shaft, that is, the lower cone, from a position where it engages with the corner fitting against the biasing force of the torsion spring, to a position where it can be inserted and removed. In other words, as shown in Fig. 31, workers can use long working tools from the uppermost container stacked in multiple stages, or from the deck (for a container ship) or the ground (for a container yard). It is necessary to pull down or push down the operation knob using the key to lock the wire locking member into the slot of the mouthpiece. In this case, it is difficult to reliably operate the operation knob with the tip of a long work tool, and it takes a lot of time to work, and fatigue caused by operating a heavy, long work tool is reduced. There was a big problem. In addition, when operating from the top container, it is difficult from a safety point of view because it involves work such as falling down due to work at height. The inventor of the present invention has previously filed an application for the container connecting metal fitting described in the re-published patent WO 02 / 358,58. Has a disadvantage that the operation becomes uncertain.

The present invention has been made in view of such a problem, and it is possible to automatically connect a container to be loaded to a lower container and automatically connect a container in a connected state without working at height. It is an object of the present invention to provide a container connecting fitting having a simple structure that can be detached from a container. In order to achieve the above object, a container connecting fitting of the present invention comprises: a fitting main body having an upper fitting portion and a lower fitting portion capable of fitting into an engaging hole of a corner fitting of a container; A shaft rotatably supported, upper and lower fittings integrally connected to the upper end and lower end of the shaft, respectively, and being engageable with the engaging holes of the corner fittings of the container; an operating member for rotating the shaft; The fitting body is provided with a rotating mechanism for rotating the shaft by applying a load of the container, and the shaft is configured to rotate the upper fitting to a position overlapping the upper fitting portion. And a notch is formed at a corner of the lower surface at a diagonal position of a side of the upper metal fitting which engages with the engaging hole of the corner fitting of the container, Via operating member When the upper bracket in a position to engage the engagement hole of the container of the corner fittings against the biasing force of the panel means Te, the lower bracket in a position overlapping with the lower fitting part, also con When the corner fitting of the tenor presses the turning mechanism, the shaft is turned against the urging force of the panel means, and the lower fitting is turned to a position where the lower fitting is engaged with the engaging hole of the corner fitting of the container. When the corner fitting of the container rises along the cutout of the upper fitting and separates from the rotating mechanism, the shaft is rotated by the urging force of the panel means, and the lower fitting overlaps the lower fitting 5 parts. It is characterized by being rotated to a position.

According to this configuration, when loading the container ', first, the upper metal fitting is rotated to a position overlapping the upper fitting portion, and the upper metal fitting is inserted into the lower corner metal fitting through the engagement hole of the lower corner metal fitting in the container. If the upper bracket is inserted into the engagement hole of the lower bracket, the operating member is pulled against the urging force of the panel means, and the upper bracket is moved to the position where it engages with the engagement hole of the lower corner bracket in the container. Rotate. At this time, a pair of notches at the diagonal positions of the upper bracket abut the lower corner fitting, and the container connecting bracket is attached to the lower corner fitting. The lower fitting is located at a position overlapping the lower fitting portion. In this state, if the suspended container is placed on the lower container, the lower metal fitting can be inserted into the upper corner metal fitting through the engagement hole of the upper corner metal fitting in the container. 5 Here, when the suspended container descends, the lower corner fitting of the container rotates, and the shaft is rotated by the urging force of the panel means in order to contact the moving mechanism and load the container. For this reason, the lower fitting is rotated from a position overlapping the lower fitting portion to a position engaging with the engaging hole of the upper corner fitting, and a position at which the upper fitting further engages with the engaging hole of the lower corner fitting. And the upper and lower containers can be connected in series.

On the other hand, when unloading a container, when the container is lifted, the container first rises by an amount corresponding to the height of the notch formed in the upper bracket. For this reason, the lower corner fitting of the container is detached from the rotating mechanism, and the shaft is rotated by the urging force of the panel means. In other words, the lower fitting pivots from the position 5 engaging with the engagement hole of the lower corner fitting to a position overlapping with the lower fitting part, so that the lower fitting is connected to the upper corner fitting hole of the upper corner fitting of the container. It can be detached from the bracket.

In this way, the upper bracket is engaged with the engagement hole of the lower corner fitting of the container, the container is transported with the container connection fitting attached, and placed on the lower container. After the lower bracket is inserted through the mating hole, the lower bracket is inserted into the engagement hole. On the other hand, when the container is lifted, the lower metal fitting can be released from the engagement hole of the upper corner metal fitting of the lower container. Can be automatically connected, and the container connection fitting can be automatically detached from the lower container when unloading the container. As a result, the worker does not need to operate the work tools from the container or the like, which reduces the work and eliminates the need for work at a high place, thereby ensuring safety.

In the above configuration, the rotation mechanism is a substantially right-angled triangular pressing piece slidably fitted along a guide hole or a guide groove formed in a metal fitting body, and The configuration may be such that the shaft is rotated by the sliding of the pressing piece pressed by the corner fitting. '' According to this configuration, when the container descends, the lower corner fitting of the container abuts on the oblique side of the pressing piece to apply the load on the container, and the pressing piece moves along the guide hole and guide groove. And slide it out to abut the shaft. For this reason, the shaft is rotated against the urging force of the panel means, and the upper metal fitting and the lower metal fitting are respectively rotated to positions where they engage with the engagement holes of the corner metal fittings of the container.

The rotating mechanism includes a vertically movable lifting member, and a refraction link mechanism which is in contact with the vertically movable member and is urged in a direction in which it is constantly bent. The vertically movable member is pressed by a corner fitting of the container. The shaft may be rotated by extending the refraction link mechanism via the member.

According to this configuration, when the container descends, the lower corner fitting of the container comes into contact with the elevating member to apply the load of the container, and the refraction link mechanism extends via the descending elevating member, and the shaft is attached to the shaft. Push in contact. For this reason, the shaft is rotated against the urging force of the panel means, and the upper metal fitting and the lower metal fitting are each rotated to a position where they are engaged with the engaging holes of the corner metal fittings of the container.

The rotating mechanism is a sliding member that is slidable along a guide passage formed in the fitting main body. The sliding member pressed by the corner fitting of the container slides along the guide passage. It may be one that rotates the shaft.

According to this configuration, when the container descends, the lower corner fitting of the container is moved to the sliding portion. When the load of the container is applied by contacting the material, the sliding member slides along the guide passage and pushes out by contacting the shaft. For this reason, the shaft is rotated against the urging force of the spring means, and the upper metal fitting and the lower metal fitting are respectively rotated to positions where they are engaged with the engaging holes of the corner metal fittings of the container.

The rotating mechanism is capable of moving up and down along the outer peripheral surface of the shaft, and has an elevating member having a pin protruding inward, a spiral groove formed in the shaft and into which the pin of the elevating member is fitted. And a spring for urging the elevating member to the ascending position, wherein the elevating member pressed by the corner fitting of the container descends to rotate the shaft.

According to this configuration, when the container descends, when the lower corner fitting of the container comes into contact with the elevating member to apply the load of the container, the elevating member provided with the pin descends. At this time, since the pin is fitted in the spiral groove formed in the shaft, the pin pushes down the spiral groove. For this reason, the shaft is rotated against the urging force of the panel means, and the upper metal fitting and the lower metal fitting are respectively rotated to positions where they engage with the engagement holes of the corner metal fittings of the container.

An elevating member having a spiral groove formed on an inner peripheral surface thereof; a pin provided on the shaft and fitted into the spiral groove of the elevating member; And a spring that biases the shaft to an upper position, and the shaft may be rotated by lowering the elevating member pressed by the corner fitting of the container.

According to this configuration, when the container descends, when the lower corner fitting of the container comes into contact with the elevating member to form a load on the container, the elevating member formed with the spiral groove descends. At this time, since the pin provided on the shaft is fitted into the spiral groove, the pin moves along the descending spiral groove. For this reason, the shaft is rotated against the urging force of the panel means, and the upper fitting and the lower fitting are respectively rotated to positions where they engage with the engagement holes of the corner fittings of the container.

In the above configuration, the operating member includes an operating lever, a connecting tool having one end connected to the operating lever, and the other end connected to the shaft, and the metal fitting body is capable of locking the operating lever. A locking part and a housing part capable of housing the operation lever are formed. Preferably.

According to this configuration, the operating lever is grasped, pulled against the urging force of the panel means, and locked by the locking portion of the metal fitting body, so that the shaft is rotated via the connecting member, and the shaft is rotated. The upper metal fitting and the lower metal fitting fixed to the container can be rotated to positions where they engage with the engaging holes of the corner metal fittings of the container, and can be held at that position.

In the above configuration, a stopper is provided at one corner of the upper fitting portion of the metal fitting body so as to be urged in a direction protruding from an upper surface thereof so as to be able to move up and down in a vertical direction. It is preferable to hold the container at a position where it engages with the engagement hole of the corner fitting of the container.

According to this configuration, the stopper normally protrudes from the upper surface of the upper fitting portion by the biasing force of the spring, and the upper metal fitting comes into contact with the stopper and engages with the engaging hole of the corner metal fitting of the container. is there. Therefore, if the stopper is retracted to the inside of the metal fitting body, the upper metal fitting is rotated to a position overlapping with the upper fitting part by the urging force of the panel means, and the upper metal fitting is passed through the engaging hole of the lower corner metal fitting of the container. It can be inserted into the lower corner fitting. In this state, if the operating member is pulled against the urging force of the panel means and the upper metal fitting is rotated to a position where it engages with the engaging hole of the lower corner metal fitting of the container, the stopper comes out of the spring. The upper fitting protrudes from the upper surface of the upper fitting part by the urging force, and thereafter, the upper fitting abuts on the stono and is prevented from rotating to a position overlapping with the upper fitting part. In the engaging position. For this reason, when the container is connected to the lower corner of the container and the container is transported, it is possible to reliably prevent the container coupling from dropping off the lower corner.

In the above configuration, it is preferable that the metal fitting body is provided with a safety mechanism that prevents rotation of the shaft due to the urging force of the panel means when the container connecting metal is inclined at a certain angle with respect to a horizontal plane. .

According to this configuration, when the container is tilted or rocked and jumped in a state where the upper and lower containers are connected, the corner fitting of the container is disengaged from the rotating mechanism. That is, the lower fitting is to be rotated to a position overlapping the lower fitting portion. However, the rotation of the shaft is cheap. It does not rotate because it is blocked by all mechanisms. For this reason, the connection state of the upper and lower containers can be reliably maintained.

In the above configuration, the safety mechanism is provided so as to be movable in the front-rear direction with respect to the container main body, a lid body that covers an upper opening of the container main body, the container main body installed in the metal fitting main body, and a connecting member. A movable body that is passed through and is in contact with the operation lever, and a rolling element that is disposed on an outwardly descending inclined surface formed on the container body and that can roll freely. The configuration may be such that when the mobile body is tilted, the movement of the mobile body is prevented by the rolling elements.

According to this configuration, when the container is tilted in a state where the upper and lower containers are connected, the bracket body, that is, the safety mechanism provided on the bracket body is also inclined, and the one of the inclined surfaces corresponding to the inclination direction is inclined. The rolling element rolls along, and the backward movement of the moving body is prevented. In this case, since the operating lever is in contact with the moving body, the operating lever does not move backward unless the moving body moves. Therefore, the connecting tool connected to the operating lever can be maintained in the same state, and the rotation of the shaft due to the urging force of the panel means can be reliably prevented.

The safety mechanism comprises: an outwardly-facing downwardly inclined passage formed in the bracket main body; a rolling element disposed in the inclined passage and capable of rolling; and a fitting recess formed in the shaft. When the lever is in the rotating position by the extended refraction link mechanism, the inclined passage of the bracket body and the fitting recess of the shaft communicate with each other, and in this state, the rolling element fits into the fitting recess when tilted beyond the set angle. In addition, the rotation of the shaft may be prevented.

According to this configuration, when the container is inclined in a state where the upper and lower containers are connected, the metal fitting body, that is, the safety mechanism provided on the metal fitting body is also inclined, and the one of the inclined passages corresponding to the inclination direction. The rolling elements roll along, and are fitted into fitting recesses formed in the shaft to face each other. Therefore, the rotation of the shaft due to the urging force of the panel means can be reliably prevented.

The safety mechanism comprises: an outwardly-inclined inclined passage formed in the shaft; a rolling element disposed in the inclined passage and capable of rolling; and a fitting recess formed in the fitting body. Is in the pivot position by the sliding member, In this state, when the inclined passage is communicated with the fitting recess of the bracket body, and in this state, the rolling element fits into the fitting recess, the shaft is prevented from rotating. You can.

According to this configuration, when the container is inclined while the upper and lower containers are connected, the bracket body, that is, the safety mechanism provided on the bracket body is also inclined, and one of the inclinations corresponding to the inclination direction. The rolling element rolls along the passage and fits into a fitting recess formed in the metal fitting body facing the rolling element. Therefore, the rotation of the shaft due to the urging force of the panel means can be reliably prevented.

The safety mechanism comprises: an outwardly descending inclined passage formed in the bracket main body; a rolling element disposed in the inclined passage and capable of rolling; and a fitting recess formed in the elevating member. When the member is in the lowered position, the inclined passage of the bracket body and the fitting recess of the elevating member communicate with each other. In this state, when inclined beyond a set angle, the rolling element fits into the fitting recess and moves up and down The member may be prevented from rising.

According to this configuration, when the container is inclined in a state where the upper and lower containers are connected, the metal fitting body, that is, the safety mechanism provided on the metal fitting body is also inclined, and the one of the inclined passages corresponding to the inclination direction. The rolling element rolls along and fits into the fitting recess formed in the elevating member in opposition. Therefore, the lifting member is prevented from rising. In this case, since the pin is inserted into the spiral groove, the shaft does not rotate unless the elevating member rises, and the rotation of the shaft due to the urging force of the panel means is reliably prevented. Can be. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an overall perspective view showing a first embodiment of a container connection fitting of the present invention. FIG. 2 is an exploded perspective view of the container connection fitting of FIG.

FIG. 3 is a perspective view showing one half of a fitting main body constituting the container connecting fitting of FIG.

FIG. 4 is a perspective view showing a shaft and an upper metal member and a lower metal member integrally connected to the shaft constituting the container connecting metal member of FIG.

FIG. 5 is a rear perspective view showing the upper metal fitting. FIG. 6 is a cross-sectional view of the container connecting fitting of FIG. 1 cut along a plane crossing the upper fitting portion of the fitting main body.

FIG. 7 is a perspective view for explaining the operation of the safety mechanism constituting the container connection fitting of FIG. 1 and its operation.

FIG. 8 is a front view showing a state in which the container connecting fittings connecting the upper and lower containers are inclined at a certain angle with respect to a horizontal plane, and a sectional view taken along line AA.

FIG. 9 is a rear perspective view showing a modification of the upper metal fitting.

FIG. 10 is a perspective view for explaining a step of attaching the container connecting fitting of FIG. 1 to the lower corner fitting of the container.

-Fig. 11 is a perspective view showing a state where the container connecting fitting of Fig. 1 is attached to the lower corner fitting of the container, partially cut away.

FIG. 12 is a perspective view illustrating a process of attaching the container connecting fitting of FIG. 1 to the lower corner fitting of the container and inserting the same into the upper corner fitting of the container.

Fig. 13 shows the upper and lower metal fittings of the container connecting metal fittings of Fig. 1 engaged with the lower corner metal fitting and the upper corner metal fitting of the container, respectively, and the state where the upper and lower containers are linked is partially broken. FIG.

FIG. 14 is a perspective view illustrating a process of unloading the upper container connected by the container connection fitting of FIG. 1 from the lower container.

FIG. 15 is a longitudinal sectional view partially showing the second embodiment of the container connecting fitting of the present invention.

FIG. 16 is a cross-sectional view of the container connection fitting of FIG.

FIG. 17 is a longitudinal sectional view partially showing the third embodiment of the container connecting fitting of the present invention.

FIG. 18 is a cross-sectional view of the container connection fitting of FIG. '

FIG. 19 is a cross-sectional view when the upper metal fitting and the lower metal fitting of the container connecting metal fitting of FIG. 17 are located at positions respectively engaged with the engaging holes of the corner metal fittings of the container.

FIG. 20 is a vertical cross-sectional view showing a fourth embodiment of the container connecting fitting of the present invention with a part thereof being omitted.

FIG. 21 is a cross-sectional view of the container connection fitting of FIG. Fig. 22 is an explanatory diagram showing the state where containers are transported between the container yard and the apron by the container transport vehicle, and the containers are unloaded between the container transport vehicle and the container ship by the container crane.

FIG. 23 is a perspective view of a conventional container connection fitting.

FIG. 24 is a plan view of the container connection fitting of FIG.

FIG. 25 is a bottom view of the container connection fitting of FIG.

FIG. 26 is a cross-sectional view of the container connection fitting of FIG.

FIG. 27 is a process diagram illustrating the work of attaching the container connection fitting of FIG. 23 to a container and loading the container on a container ship. .

FIG. 28 is a process diagram illustrating an operation of attaching the container connection fitting of FIG. 23 to a container and loading the container on a container ship.

FIG. 29 is a process diagram illustrating an operation of attaching the container connection fitting of FIG. 23 to a container and loading the container on a container ship.

FIG. 30 is a process diagram illustrating an operation of attaching the container connection fitting of FIG. 23 to a container and loading the container on a container ship.

FIG. 31 is a process diagram illustrating an operation of unloading containers loaded by being connected by the container connection fittings of FIG. 23 from a container ship.

FIG. 32 is a process diagram illustrating an operation of unloading a container connected and loaded by the container connection fitting of FIG. 23 from a container ship. BEST MODE FOR CARRYING OUT THE INVENTION

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

FIG. 1 and FIG. 2 show a first embodiment of a container connecting fitting 1 of the present invention.

The container connecting bracket 1 is integrally connected to the upper end of the shaft 3, which is integrally fixed by bolts and is capable of being divided into right and left, a shaft 3 rotatably supported by the bracket main body 2, and the shaft 3. Upper bracket 4, a lower bracket 5 integrally connected to the lower end of the shaft 3, a rotating mechanism 6 for rotating the shaft 3 when a load of the container Ct is applied, and a shaft 3, that is, Rotate the upper bracket 4 and lower bracket 5 And a safety mechanism 8 for restricting the rotation of the shaft 3.

The metal fitting body 2 is provided integrally with the main body part 21 larger than the engagement hole Fa of the corner metal fitting F in the container Ct, and above and below the main body part 21, and is provided with the corner metal fitting F in the container Ct. The upper fitting portion 22 and the lower fitting portion 23 are shaped to match the engaging holes Fa of the upper and lower fitting portions 23. The engagement hole Fa of the lower corner fitting F of the nut Ct and the engagement hole Fa of the upper corner fitting F of the lower container Ct can be fitted respectively. At the front end of the main body 21 of the bracket main body 2, a locking portion 21a for locking the operation lever 71 of the operation member 7 is formed, and a housing capable of housing the operation lever 71 is formed. The part 21b is formed.

As shown in detail in FIG. 3, the metal fitting body 2 has a cylindrical first hollow portion 2a formed at an approximately middle portion in the vertical direction, and a rectangular parallelepiped first hollow portion 2a is formed above the first hollow portion 2a with a partition wall therebetween. A second cavity 2b is formed, and a cylindrical third cavity 2c having a smaller diameter than the first cavity 2a communicates with the first cavity 2a below the first cavity 2a. It is formed as follows. Furthermore, the through hole 2 d penetrating from the upper surface of the upper fitting portion 22 to the lower surface of the lower fitting portion 23 is formed in the metal fitting body 2 through the first hollow portion 2 a and the third hollow portion 2 c. It is formed centered on the center of. Also, in front of the main body 21 of the bracket main body 2, one end communicates with the first hollow portion 2a, and the other end opens to its front end (locking portion 2la). A fourth hollow portion 2 e is formed.

Here, the first cavity portion 2a, the second cavity portion 2b, and the third cavity portion 2c are rotatably supported by through holes 2d of the metal fitting body 2 as described later. The flange portion 32 of the shaft 3, the arm 33, and the torsion spring 34 disposed on the shaft 3 are respectively housed, and the fourth hollow portion 2e houses a safety mechanism 8.

Further, the metal fitting body 2 is provided at one corner thereof with a stopper 24 urged so as to protrude from the upper surface of the upper fitting portion 22 via a spring (not shown) so as to be able to protrude and retract. The stopper 24 is provided with an operating rod 2 41 on the body, and the operating port 2 41 is pushed down against the urging force of the spring, so that the stopper 24 is fitted to the upper side. Fitting body 2 so that it does not protrude from the top of part 2 2 Can be evacuated inside.

Note that a recess 21 c is formed in the main body 21 of the bracket main body 2 so that the operation rod 241 can be pushed down over a certain distance.

As shown in FIGS. 2 and 4, the shaft 3 has a shaft portion 31 having an outer diameter corresponding to the hole diameter of the through hole 2 d of the metal fitting body 2, and a shaft portion substantially in the middle of the shaft portion 31. A flange 3 2 having a diameter larger than 3 1 and a pair of arms 3 3 protruding outward at an interval of about 180 degrees on the outer peripheral surface of the shaft 31 above the flange 3 2. The flange 32 is positioned so that the flange 32 is housed in the first cavity 2a of the bracket body 2 and the arm 33 is housed in the second cavity 2b. I have.

Further, panel means, for example, a torsion spring 34 is fitted below the shaft 31 of the shaft 3, and one end of the torsion panel 34 is fixed to the flange 32 of the shaft 3. The other end is fixed to the metal fitting body 2. Then, the shaft 3 is urged to rotate in a counterclockwise direction (arrow direction) in FIG. 4 by the urging force of the torsion spring 34.

On the other hand, a connecting member of the operating member 7, for example, a control cable 72 such as a Kevlar is fixed to one end of the flange portion 32 of the shaft 3, and the other end is connected to the operating lever 7 1 through the safety mechanism 8. It is anchored in.

The upper bracket 4 is integrally fixed to the upper end of the shaft 31 of the shaft 3, and is formed in a shape corresponding to the engagement hole Fa of the lower corner bracket F in the container Ct when viewed from above. ing. For this reason, when the upper metal fitting 4 is located at a position overlapping with the upper fitting part 22 of the metal fitting body 2, the upper metal fitting 4 can be inserted into the lower corner metal fitting F through the engaging hole Fa. The upper fitting portion 22 is fitted into the engagement hole Fa of the lower corner fitting F. When the upper fitting 4 is located at a position crossing the upper fitting portion 22 at a fixed angle, that is, the upper fitting 4 engages with the engaging hole Fa of the lower corner fitting F in the container Ct. When notched, a notch 4X is formed at the lower corner on the diagonal side of the upper fitting portion 22 beyond the left and right outer surfaces. The notch 4X of the upper bracket 4 corresponds to the thickness of the lower corner bracket F when the upper bracket 4 is at a position where the upper bracket 4 is engaged with the engagement hole Fa of the lower corner bracket F in the container Ct. The size is set so that it can be raised by the height, and its outer surface is the inner periphery of the engagement hole Fa of the lower corner fitting F. It is chamfered into a curved shape so that it contacts the edge smoothly.

The lower metal fitting 5 is integrally fixed to the lower end of the shaft 31 of the shaft 3, and is formed in a shape corresponding to the engaging hole Fa of the upper corner metal fitting F in the container Ct when viewed from above. ing. For this reason, when the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23 of the metal fitting body 2, the lower metal fitting 5 can be inserted into the upper corner metal fitting F through the engaging hole Fa. At this time, the lower fitting portion 23 is fitted into the engaging hole Fa of the upper corner fitting F. Here, the upper bracket 4 and the lower bracket 5 cross each other in a substantially X-shape when viewed from above and are fixed to the shaft 3, respectively. The upper bracket 4 is stopped by the biasing force of the torsion spring 34. When the lower metal fitting 5 is in a position where the lower metal fitting 5 is in contact with the engagement hole Fa of the lower corner metal fitting F in the container Ct, the lower metal fitting 5 overlaps the lower fitting portion 23 of the metal fitting body 2, That is, it is located at a position where it can be inserted into and removed from the engagement hole Fa of the upper corner fitting F of the container Ct (see FIG. 1). On the other hand, the upper bracket 4 rotates clockwise from the position where it comes into contact with the stopper 24 against the urging force of the torsion panel 34, and engages with the engagement hole Fa of the lower corner bracket F in the container Ct. The lower metal fitting 5 is also in a position to be engaged with the engaging hole Fa of the upper corner metal fitting F in the container Ct. When the upper bracket 4 is in a position where it comes into contact with the stopper 24, as shown by the solid line in FIG. 1, the operation lever 71 has a margin inside the accommodation part 21b to the inner part thereof. It is housed in a state where Therefore, by pushing down the operating rod 2 41 and retracting the stopper 24 inside the bracket main body 2, the upper bracket 4 is overlapped with the upper fitting portion 22 by the urging force of the torsion spring 34. When rotated in the counterclockwise direction, the operation lever 71 is pulled through the control cable 72 to a position where the operation lever 71 comes into contact with the inner part of the housing portion 21b. On the other hand, when grasping the operation lever 71 and pulling it toward the front side, as shown by the chain line in FIG. 1, it turns 90 degrees, crosses the bracket body 2 and locks the locking portion 21 a. The rotation of the shaft 3 in the counterclockwise direction due to the biasing force of the torsion spring 34 can be restricted via the control cable 72 connected between the shaft 3 and the operation lever 71. At this time, the shaft 3, that is, the upper bracket 4 and the lower bracket 5, which are rotated clockwise through the control cable 72 against the urging force of the torsion spring 34, are respectively connected to the container C t. At a position where it engages with the engaging hole Fa of the corner fitting F. The turning mechanism 6 is a pair of substantially right-angled isosceles triangular pressing pieces 6 1 slidably provided in the upper fitting portion 22 of the metal fitting body 2. When the metal fitting 4 is in the position to engage with the engagement hole Fa of the lower corner metal fitting F, the longitudinal direction is substantially diagonally positioned at the upper fitting portion 22 on the side crossing the upper metal fitting 4 in an X-shape. Each of the guide holes 61a (see FIG. 6), which are formed in communication with the second hollow portion 2b from the left and right outer surfaces in the vertical direction and are formed in a substantially oval cross section, are slidably fitted respectively. I have. A guide groove 61b having a semicircular cross section is formed on the upper surface and the lower surface of the second hollow portion 2b of the main body 21 so as to communicate with the guide hole 61a. When the pressing piece 61 slides along 61 a, the bottom side and the upper side of the pressing piece 61 are respectively guided by the guide grooves 61b.

Here, the pressing piece 61 is fitted into the guide hole 61a so that the hypotenuse is located outward, and when the lower corner fitting F of the container Ct abuts on the hypotenuse of the pressing piece 61. The pressing piece 61 is pushed into the second hollow portion 2b along the guide hole 61a and the guide groove 61b by the weight of the container Ct.

The distal end of the pressing piece 61 is set to abut on each arm 33 in the second hollow portion 2b. For example, the upper metal fitting 4 is stopped by the urging force of the torsion panel 34. When abutting against 24, the pressing piece 61 abuts against the arm 33 of the shaft 3 as shown in Fig. 6, and is pushed outward along the guide hole 61a and the guide groove 61b. Have been.

The safety mechanism 8 can be fitted into the fourth hollow portion 2 e of the fitting body 2, and as shown in FIG. 7 (a), a substantially cross-shaped container body 81 and a container body 81 are formed. A lid 82 (see FIG. 7 (d)), which is formed almost vertically symmetrically and closes the upper opening of the container body 81, and a cross-shaped member arranged on the container body 81 and movable in the front-back direction Of the movable body 83, the container body 81 and the movable body 83, and the spring 84, which constantly urges the movable body 83 forward, is formed on the bottom surface of the container body 81. It does not interfere with the right and left edges of the rolling element, for example, a pair of balls 85 and the moving body 83, which can roll on the inclined surface 8X (see FIG. 8 (b)), which has a downward slope toward the left and right outward directions. And a guide 86 that is provided in the container body 81 and forms a space for accommodating the balls 85. Each ball 85 is provided in the container body 81. Guide 8 6, the moving body 8 3 Oyopi volumes The space extending in the left-right direction defined by the container body 81 can be rolled along the inclined surface 8X.

When the safety mechanism 8 is disposed in the fourth hollow portion 2 e of the metal fitting body 2, the locking part 21 a of the metal fitting body 2 and the housing part 2 are provided in the container body 81 and the lid body 82. An engaging portion 8a and a receiving portion 8b corresponding to 1b are formed.

Further, a through hole (not shown) is formed in the moving body 83 in the front-rear direction, and the control cable 72 inserted through the through hole of the moving body 83 is connected to the front end of the moving body 83. The operation lever 71 is in a contact state with the operation lever 71.

Here, when the container body 81 is in the horizontal state, each ball 85 is in contact with the inner wall surface of the inclined surface 8 in the left-right direction, which is the lowermost position. At this time, when the control cable 72 is pulled rearward, the moving body is moved via the operation lever 71 which is housed in the housings 8b and 21b with some margin to its inner part. 8 3 can be moved rearward against the biasing force of the spring 8 4, and in this case, the operation lever 71 is housed in a state in which it abuts on the inner part of the housing portion 8 b (See Fig. 7 (b)).

On the other hand, when the container body 81 is inclined at a certain angle from the horizontal state, specifically, when the container body 81 is inclined at an angle exceeding the gradient of the inclined surface 8X (in the present embodiment, it is set to about 5 degrees) (FIG. 8 (a)), one of the balls 85 rolls along the inclined surface 8X in the space extending in the left-right direction defined by the guide 86, the moving body 83 and the container body 81, Since the ball 85 is interposed between the moving body 83 and the container body 81, the movement of the moving body 83 is prevented even if the control cable 72 is pulled backward. Therefore, the operating lever 71 does not move from the position corresponding to the locking portion 8a (see FIGS. 7C and 8B), and the rotation of the shaft 3 is prevented.

Instead of the notch 4X of the upper fitting 4 of the above-described embodiment, as shown in FIG. 9, a horizontal plane at a height position substantially corresponding to the plate thickness of the corner fitting F, and the upper fitting portion 22 It may be a notch formed by a vertical surface continuous with each of the left and right outer surfaces.

Also, the case where the ball 85 is used as the rolling element of the safety mechanism 8 has been described, but a roller may be used. Next, the operation of the thus configured container connection fitting 1 will be described. First, in the initial state, as shown in FIGS. 1 and 2, the upper bracket 4 is brought into contact with the stopper 24 by the urging force of the torsion spring 34, and the engagement hole of the lower corner bracket F in the container Ct is provided. The lower metal fitting 5 is located at a position where the lower metal fitting 5 overlaps with the lower fitting portion 23 of the metal fitting main body 2. As shown in FIG. 6, the pressing piece 61 abuts on the arm 33 of the shaft 3 and is pushed outward along the guide hole 61 a and the guide groove 61 b. Further, the operation lever 71 is accommodated in the accommodation portion 2 lb of the metal fitting body 2 (accommodation portion 8 b of the safety mechanism 8) with a slight margin to the inner part, and is returned.

To attach the container connection fitting 1 to the engagement hole Fa of the corner fitting F of the container Ct, first push down the operating rod 2 41 against the biasing force of the spring, and then push the stopper 24 4 into the upper fitting section. 22 Retract from the position protruding from the upper surface of the inside of the bracket body 2. At this time, since the rotation of the upper fitting 4 by the stopper 24 is released, the shaft 3 is rotated to a position where the upper fitting 4 overlaps the upper fitting portion 22 by the urging force of the torsion panel 34. At this time, the operating lever 71 is pulled rearward through the control cable 72 by an amount corresponding to the rotation of the shaft 3, and the housing 21b of the metal fitting body 2 (the housing 8b of the safety mechanism 8) is pulled. In this state, the container connection fitting 1 is lifted and lifted to a height of about lm above the ground by the container crane Cr at the apron Ap. Insert the upper bracket 4 into the lower corner bracket F through the engagement hole Fa of the lower corner bracket F in the container C t (see FIG. 10). Thereafter, if the operating lever 71 is pulled against the urging force of the torsion panel 34, the shaft 3 rotates clockwise, and the upper bracket 4 engages inside the lower corner bracket F. It pivots to a position where it engages with the hole Fa. At this time, when the upper bracket 4 rotates to a position where it engages with the engagement hole Fa of the corner bracket F, the stopper 24 projects from the upper surface of the upper fitting portion 22 by the biasing force of the spring. The upper bracket 4 contacts the stopper 24 and is prevented from rotating further counterclockwise by the biasing force of the torsion panel 34, and is engaged with the engagement hole Fa of the lower corner bracket F. Held in position. Therefore, even if you release your hand from the container connection bracket 1, Since the metal fitting 4 is engaged with the engagement hole Fa of the lower corner metal fitting F, the container connecting metal fitting 1 is securely prevented from falling off from the lower corner metal fitting F of the container Ct.

At this time, the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23. In addition, the container connecting fitting 1 is lowered by its own weight, the notch 4X of the upper fitting 4 comes into contact with the inner peripheral edge of the engaging hole Fa of the lower corner fitting F, and is supported by the upper fitting part. 22 is partially fitted into the engagement hole Fa of the lower corner fitting F (see FIG. 11).

When the upper fitting 4 is engaged with the engagement hole Fa of the lower corner fitting F of the container C t and the container connecting fitting 1 is attached, the container C t is lifted using the container crane Cr, Load on container ship Sh. At this time, as described _above;> upper bracket 4, because it is in a position to be engaged with the engaging hole F a lower to look fitting F of the container C t which is lifted is restrained by the stopper 2 4, the container Until Ct is transferred from the apron Ap to the deck of the container ship Sh, the container connecting fitting 1 does not fall off the lower corner fitting F of the container Ct.

On the other hand, since the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23, the lower metal fitting 5 is passed through the engaging hole Fa of the upper corner metal fitting F of the lower container Ct previously loaded. The upper corner fitting F can be purchased. At this time, the lower fitting portion 23 is fitted into the engaging hole Fa of the upper corner fitting F (see FIG. 12).

Furthermore, if the upper container Ct is lowered, the lower surface of the main body 21 of the metal fitting body 2 is placed on the upper corner metal fitting F of the lower container Ct, and then the upper container Ct is moved to the upper metal fitting. 4 Notch 4 Lowers by a height equivalent to the height of X. At this time, the lower corner metal fitting F comes into contact with the oblique side of the pressing piece 61 protruding outward from the upper fitting portion 22 of the metal fitting body 2 and loads the upper container Ct. 6 1 is pushed along the guide hole 6 1 a and the guide groove 6 1 b toward the second hollow portion 2 b of the fitting body 2. On the other hand, when the pressing piece 61 is pushed into the second hollow portion 2 b of the metal fitting body 2, the arm 33 of the shaft 3 with which the tip abuts against the biasing force of the torsion panel 34. Since the shaft 3 is pushed out, the shaft 3 is rotated clockwise, and the lower metal fitting 5 is rotated inside the upper corner metal fitting F of the lower container Ct to a position where the lower metal fitting 5 is engaged with the engagement hole Fa. Similarly, the upper bracket 4 is also rotated to a position where the upper bracket 4 further engages with the engagement hole Fa of the lower corner bracket F in the upper container C t (FIG. 13). See). Finally, the lower surface of the lower corner fitting F of the upper container Ct is placed on the upper surface of the main body 21 of the fitting main body 2.

As a result, the upper and lower containers Ct are connected via the container connection fitting 1 rotated to a position where the upper fitting 4 and the fitting 5 respectively engage with the engagement holes Fa of the corner fitting F.

In addition, the clockwise rotation of the shaft 3 causes the operation lever 71 to correspond to the locking portion 21a from the receiving portion 21 of the bracket body 2 via the control cable 72 connected to the shaft 3. It is pushed out to the position.

By the way, in a state where the upper and lower containers C t are connected via the container connection fitting 1 and the container ship Sh rolls and inclines more than a certain angle with respect to the horizontal plane, one of the poles 8 5 rolls along the inclined surface 8X and interferes with the moving body 83 and the pole 85, so that the moving body 83 is prevented from moving backward (see FIG. 7 (c) and FIG. b)).

That is, when the container ship Sh rolls or pitches, and the container Ct is tilted or rocked, and the lower corner fitting F is disengaged from the pressing piece 61, the lower bracket 5 is lowered. An attempt is made to rotate the shaft 3 by the biasing force of the torsion panel 34 so as to overlap the side fitting portion 23. However, at this time, since the control lever 71 to which the control cable 72 is fixed is in contact with the moving body 83 which is prevented from moving backward by the ball 85, it must move. Can not. As a result, the shaft 3, that is, the lower metal fitting 5 is rotated to a position overlapping the lower fitting part 23, and the lower metal fitting 5 is detached from the engaging hole Fa of the upper corner metal fitting F in the lower container Ct. However, it is possible to reliably prevent the connection state of the upper and lower containers Ct by the container connection fitting 1 from being released.

For example, if stormy weather is anticipated during the voyage, the operating lever 71 located at the position corresponding to the locking portion 21a of the bracket body 2 is rotated 90 degrees and locked to the locking portion 21a. (See the position of the chain line in Fig. 1 and Fig. 7 (d)), which can prevent the shaft 3 from rotating counterclockwise due to the urging force of the torsion spring 34. Even if the rotation operation of the lever 7 1 is forgotten, the safety mechanism 8 (3) The counterclockwise rotation of the torsion panel (3) 4 is prevented, and the lower bracket 5 is securely prevented from being detached from the engagement hole Fa of the upper corner bracket F of the lower container Ct. Can be.

On the other hand, when unloading container Ct from container ship Sh, container Ct may be lifted via container crane Cr. That is, if the upper container C t is lifted, first, only the upper container C t rises by the height of the notch 4 X of the upper bracket 4. At this time, the lower corner fitting Fa of the upper container Ct is detached from the oblique side of the pressing piece 61, and the shaft 3 is rotated counterclockwise by the urging force of the torsion panel 34, so that the arm 3 3 pushes out the pressing piece 6 1. That is, the shaft 3 rotates counterclockwise to a position where the upper bracket 4 comes into contact with the stopper 24 by the urging force of the torsion panel 34. At this time, since the lower metal fitting 5 is located at a position overlapping the lower fitting part 23, the container connecting metal fitting 1 can be detached from the upper corner metal fitting F of the lower container C t (FIG. 14). See).

In this way, only by lifting the upper container Ct, the lower fitting 5 of the container connecting fitting 1 can be securely detached from the upper corner fitting F of the lower container Ct. Operation or work at height is not required. In this case, as described above, since the upper fitting 4 is located at the position where it engages with the engaging hole Fa of the lower corner fitting F in the container Ct being lifted, the upper fitting 4 extends from the container ship Sh to the apron Ap. Until the transfer, the container connecting fitting 1 does not fall off the lower corner fitting F of the container Ct.

If the container C t is transferred to the apron A p, the operation rod 2 4 1 is pushed down in the apron A p, and the horn and ° 24 are retracted inside the bracket body 2, so the torsion spring 3 The shaft 3 is rotated counterclockwise by the urging force of 4, and the upper metal fitting 4 is rotated to a position overlapping the upper fitting portion 22. Therefore, the upper metal fitting 4 and the upper fitting part 22 can be detached from the engaging hole Fa of the lower corner metal fitting F of the container Ct.

In the above-described embodiment, the stopper 24 is provided on the bracket main body 2, the upper bracket 4 is brought into contact with the stopper 24, and the upper bracket 4 is connected to the lower corner bracket F of the container Ct. The case of holding at the position engaging with the engagement hole Fa has been described. Instead of 24, or together with the stopper 24, the front end of the bracket body 2 and the front end of the safety mechanism 8 are orthogonal to the housings 21b, 8b, and the housing 21b, 8 Form a groove-shaped second locking portion with a depth slightly smaller than the depth of b, lock the operation lever 7 1 in the second locking portion, and connect the upper bracket 4 to the corner fitting F in the container C t. May be held at a position where it engages with the engagement hole Fa.

Incidentally, FIGS. 15 and 16 show a second embodiment of the container connecting fitting 1 of the present invention.

In describing the second embodiment of the container connection fitting 1, the same members as those of the first embodiment of the container connection fitting 1 described above are denoted by the same reference numerals, and detailed description thereof is given. Are omitted, and only the rotation mechanism 6 and the safety mechanism 8 that are different from the first embodiment will be described.

The rotating mechanism 6 of the container connection fitting 1 includes an elevating member 62 provided in the main body 21 of the fitting main body 2 so as to be able to protrude and retract, and a hollow portion 2 f communicating with the main body 21 of the fitting main body 2. And a bending link 63 such as a chain having a plurality of bending portions disposed below the elevating member 62 in the storage space formed by the lifting member 62.Each bending portion of the bending link 63 includes: A torsion panel (not shown) is provided, and the bending link 63 is urged in a bending direction. The distal end of the refracting link 63 projects through the storage space into the hollow portion 2 f of the metal fitting body 2, and the distal end is in contact with the engaged portion 3 a formed on the shaft 3. . The elevating member 62 protrudes beyond the upper surface of the main body 21 of the metal fitting main body 2 by the refracted link 63.

On the other hand, as the safety mechanism 8, one end is opened in the hollow portion 2 f of the metal fitting body 2, and a pair of downwardly inclined inclined passages 2 X formed to extend in the diameter direction of the through hole 2 d, and each inclined passage 2 X, A plurality of poles 85 as rolling elements rotatably arranged on 2X, and a pair of fitting recesses 3X formed on the shaft 3 corresponding to the openings of each inclined passage 2X. When the shaft 3 is in the position rotated by the set angle by the extended refraction link 6 3, each inclined passage 2 X of the bracket body 2 and each fitting recess 3 X of the shaft 3 are set to communicate with each other. Have been.

Here, the inclined passage 2X is provided at a position displaced by a predetermined angle at an interval of 180 degrees so as not to interfere with the storage space for storing the refraction link 63. Next, the operation of the second embodiment of the container connection fitting 1 configured as described above will be described.

First, in the initial state, the upper metal fitting 4 is in a position where it comes into contact with the stopper 24 and engages with the engagement hole Fa of the lower corner metal fitting F of the container Ct. It is located at a position that overlaps the lower fitting portion 23 of the main body 2. The elevating member 62 is located at the ascending position by the urging force of the refracting link 63 in the refracting state, and protrudes upward from the upper surface of the main body 21 of the metal fitting main body 2.

To attach the container connecting tool 1 to the engaging hole Fa of the corner fitting F of the container Ct, first, push down the operation rod 241, and retract the stopper 24 into the fitting body 2. At this time, the shaft 3 is rotated to a position where the upper fitting 4 overlaps the upper fitting portion 22 by the biasing force of the torsion panel 34. For this reason, the operation lever 71 is pulled rearward through the control cable 72 by an amount corresponding to the rotation of the shaft 3, and is stored in contact with the inner part of the storage portion 21 b of the metal fitting body 2.

In this state, the container connection fitting 1 is lifted, and the upper fitting 4 is inserted into the lower corner fitting F through the engagement hole Fa of the lower corner fitting F in the suspended container Ct. Thereafter, when the operation lever 71 is pulled against the urging force of the torsion panel 34, the shaft 3 rotates clockwise, and the upper bracket 4 is engaged inside the lower corner bracket F. It rotates to the position where it engages with the mating hole Fa. At this time, the stopper 24 protrudes from the upper surface of the upper fitting portion 22 by the biasing force of the spring, and thereafter, the upper bracket 4 comes into contact with the stopper 24 and rotates further counterclockwise. And the lower corner fitting F is held at a position where it engages with the engagement hole Fa.

In this case, the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23. In addition, the container connecting fitting 1 descends by its own weight, and the notch 4X of the upper fitting 4 comes in contact with the inner peripheral edge of the engaging hole Fa of the lower corner fitting F to be supported and fitted to the upper side. The part 22 is partially fitted into the engagement hole Fa of the lower corner fitting F.

When the upper fitting 4 is engaged with the engagement hole Fa of the lower corner fitting F of the container C t and the container connecting fitting 1 is attached, the container C t is lifted using the container crane Cr, Load on container ship Sh. At this time, the upper bracket 4 is located at a position where the upper bracket 4 is engaged with the engagement hole Fa of the lower corner bracket F in the suspended container Ct. Therefore, the container connecting fitting 1 does not fall off from the lower corner fitting F of the container Ct until the container Ct is transferred from the apron Ap to the deck of the container ship Sh.

On the other hand, since the lower metal fitting 5 is located at a position overlapping with the lower fitting part 23, the lower metal fitting 5 passes through the engaging hole Fa of the upper corner metal fitting F of the lower container Ct previously loaded. Can be inserted into the upper corner fitting F. At this time, the lower fitting portion 23 is fitted into the engaging hole Fa of the upper corner fitting F.

Furthermore, if the upper container Ct is lowered, the lower surface of the main body 21 of the metal fitting body 2 is placed on the upper corner metal fitting F of the lower container Ct, and then the upper container Ct is moved to the upper metal fitting. 4 Notch 4 Lowers by a height equivalent to the height of X. At this time, the lower corner fitting F comes into contact with the elevating member 62 protruding above the main body 21 of the fitting body 2 and loads the weight of the upper container Ct, so that the elevating member 62 is pushed down. When the elevating member 62 is lowered, the refracting link 63 is extended, and its tip comes into contact with the engaged portion 3a of the shaft 3 and is pushed out, so that the shaft 3 is biased by the torsion panel 34. Then, the lower metal fitting 5 is rotated inside the upper corner metal fitting F of the lower container Ct to a position where the lower metal fitting 5 is engaged with the engaging hole Fa. Similarly, the 'upper bracket 4' is also rotated to a position further engaging with the engagement hole Fa of the lower corner bracket F in the upper container Ct. Finally, the lower surface of the lower corner fitting F of the upper container Ct is placed on the upper surface of the main body 21 of the fitting main body 2. At this time, since the fitting recess 3X of the rotated shaft 3 communicates with the opening of the inclined passage 2X, the ball 85 faces the fitting recess 3X of the shaft 3.

By the way, in the state where the upper and lower containers C t are connected via the container connection fitting 1 and the container ship Sh rolls and inclines at a certain angle with respect to the horizontal plane, the ball on one side is 85 rolls along the inclined passage 2X and spans the fitting recess .3X of the shaft 3 and the inclined passage 2X of the bracket body 2, so that the rotation of the shaft 3 is prevented. That is, even if the container ship Sh rolls or pitches and the container Ct is tilted or swung, the lower corner fitting F is disengaged from the elevating member 62 even if the container Ct is disengaged from the lifting member 62. Since the rotation of the shaft 3 is prevented, the lower metal fitting 5 does not rotate to a position overlapping with the lower fitting portion 23 due to the urging force of the torsion panel 34.

As a result, the lower bracket 5, i.e., the container connecting metal 1 is disengaged from the engaging hole Fa of the upper corner metal F in the lower container C t, and the connected state of the upper and lower containers C t by the container connecting metal 1 is released. Can be reliably prevented from being performed. On the other hand, when unloading container Ct from container ship Sh, container Ct may be lifted via container crane Cr. That is, if the upper container C t is lifted, first, only the upper container C t rises by the height of the notch 4 X of the upper bracket 4. At this time, the lower corner metal fitting Fa of the upper container Ct is detached from the elevating member 62, so that the shaft 3 is pushed by the urging force of the torsion panel 34, and the upper metal fitting 4 is brought into contact with the stopper 24. Rotate counterclockwise. At this time, since the lower fitting 5 is located at a position overlapping the lower fitting portion 23, the container connecting fitting 1 can be detached from the upper corner fitting F of the lower container Ct. Also, since the tip of the bending link 63 is pushed back through the engaged portion 3a of the shaft 3, the bending link 63 is bent in cooperation with the biasing force of the torsion panel, and pushes the lifting member 62 upward. I'm sorry. '

In this way, only by lifting the upper container Ct, the lower fitting 5 of the container connecting fitting 1 can be securely detached from the upper corner fitting F of the lower container Ct. Operation or work at height is not required. In this case, since the upper fitting 4 is located at the position to be engaged with the engaging hole Fa of the lower corner fitting F in the suspended container Ct, the upper fitting 4 is transported from the container ship Sh to the apron Ap. However, the container connection fitting 1 does not fall off the lower corner fitting F of the container Ct.

When the container Ct is transferred to the apron Ap, if the operation rod 2 4 1 is pushed down on the apron Ap, the stopper 24 is retracted inside the bracket body 2, so that the torsion panel 3 4 The shaft 3 rotates counterclockwise by the biasing force, The metal fitting 4 is rotated to a position overlapping the upper fitting part 22. Therefore, the upper metal fitting 4 and the upper fitting part 22 can be detached from the engaging hole Fa of the lower corner metal fitting F of the container Ct.

17 to 19 show a third embodiment of the container connecting fitting 1 of the present invention.

In describing the third embodiment of the container connection fitting 1, the same reference numerals are given to members that are the same as those of the first embodiment of the container connection fitting 1 described above, and a detailed description thereof will be given. Are omitted, and only the rotating mechanism 6 and the safety mechanism 8 that are different from the first embodiment will be described.

: As the rotating mechanism 6 in the container connecting fitting 1, there are a guide passage 21d formed from the upper surface of the main body 21 of the fitting main body 2 to communicate with the cavity 2f, and a guide passage 21d. And a sliding member 64 slidably housed therein. The leading end of the sliding member 64 protrudes into the cavity 2 f through the guide passage 21 d to engage the engaged portion 3 a of the shaft 3. Is abutted. The upper end of the sliding member 64 projects beyond the upper surface of the main body 21 of the metal fitting main body 2.

On the other hand, as the safety mechanism 8, a pair of fitting recesses 2 y formed at an interval of 180 degrees on the inner peripheral surface side of the hollow portion 2 f of the bracket main body 2 and the outer peripheral surface of the shaft 3 One end is opened at an interval of 80 degrees, and a pair of downwardly inclined inclined passages 3y formed from the opening toward the center, and a rolling roller arranged to be rotatable in each inclined passage 3y. When the shaft 3 is in a position rotated by the set angle by the sliding member 64, each inclined passage 3y of the shaft 3 and each fitting recess 2y of the metal fitting body 2 are formed. Each is set to communicate.

Next, the operation of the third embodiment of the thus configured container connecting fitting 1 will be described.

First, in the initial state, the upper metal fitting 4 is in a position where it comes into contact with the stopper 24 and engages with the engagement hole Fa of the lower corner metal fitting F of the container Ct. It is located at a position that overlaps the lower fitting portion 23 of the main body 2. The sliding member 64 is in contact with the engaged portion 3 a of the shaft 3 and is pushed up along the guide passage 21 d. The upper end of the sliding member 64 is located on the upper surface of the main body 21 of the metal fitting body 2. It is projected from. To attach the container connecting fitting 1 to the engaging hole Fa of the corner fitting F of the container Ct, first, push down the operating rod 241, and retract the stopper 24 into the fitting main body 2. At this time, the shaft 3 is rotated to a position where the upper fitting 4 overlaps the upper fitting portion 22 by the biasing force of the torsion panel 34. For this reason, the operation lever 71 is pulled rearward via the control cable 72 by an amount corresponding to the rotation of the shaft 3, and is brought into contact with the inner part of the housing portion 21 b of the metal fitting body 2 to be housed. In addition, the engaged portion 3 a of the shaft 3 rotates at a position in contact with the distal end of the sliding member 64, and therefore does not affect the sliding member 64.

In this state, the container connecting fitting 1 is lifted, and the upper fitting 4 is inserted into the lower corner fitting F through the engaging hole Fa of the lower corner fitting F 'in the suspended container Ct. Thereafter, if the operating lever 71 is pulled against the urging force of the torsion spring 34, the shaft 3 rotates clockwise, and the upper bracket 4 is engaged inside the lower corner bracket F. It rotates to the position where it engages with the mating hole Fa. At this time, the stopper 2.4 protrudes from the upper surface of the upper fitting portion 22 by the biasing force of the spring, and thereafter, the upper bracket 4 comes into contact with the stopper 24 and rotates further counterclockwise. And the lower corner fitting F is held at a position where it engages with the engagement hole Fa.

If the upper fitting 4 engages with the engaging hole Fa of the lower corner fitting F of the container C t and the container connecting fitting 1 is attached, lift the container C t using the container crane Cr. Load on container ship Sh. At this time, since the upper fitting 4 is located at a position where the upper fitting 4 is engaged with the engaging hole Fa of the lower corner fitting F in the lifted container Ct, the container Ct is moved from the apron Ap to the deck of the container ship Sh. Until the container is transported upward, the container connecting fitting 1 does not fall off the lower corner fitting F of the container Ct.

On the other hand, since the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23, the lower metal fitting 5 passes through the engaging hole Fa of the upper corner metal fitting F in the lower container Ct previously loaded. The fitting 5 can be inserted into the upper corner fitting F. At this time, the lower fitting portion 23 is fitted into the engaging hole Fa of the upper corner fitting F.

If the upper container C t is lowered, the lower surface of the main body 21 of the metal fitting body 2 is placed on the upper corner F of the lower container C t, and then the upper container C t is moved to the upper metal fitting. 4 Notch 4 Lowers by a height equivalent to the height of X. At this time, the lower corner metal fitting F comes into contact with the sliding member 64 protruding above the main body 21 of the metal fitting body 2 and loads the weight of the upper container Ct. Press and slide along guideway 21d. If the sliding member 64 slides along the guide passage 21d, its tip comes into contact with the engaged portion 3a of the shaft 3 and is pushed out against the biasing force of the torsion panel 34. The shaft 3 rotates clockwise, and in the upper corner fitting F of the lower container Ct, the lower fitting 5 is rotated to a position where the lower fitting 5 is engaged with the engagement hole Fa. Similarly, the upper fitting 4 is also rotated to a position where it is further engaged with the engaging hole Fa of the lower corner fitting F of the upper container Ct. Then, finally, the lower surface of the lower corner fitting F of the upper container Ct is placed on the upper surface of the main body 21 of the fitting main body 2. At this time, since each inclined passage 3 y of the rotated shaft 3 and the fitting recess 2 y of the fitting body 2 communicate with each other, the ball 85 faces the fitting recess 2 y of the fitting body 2 (FIG. 1). 9).

By the way, in a state where the upper and lower containers C t are connected via the container connection fitting 1 and the container ship Sh rolls and inclines more than a certain angle with respect to the horizontal plane, one of the balls 8 5 rolls along the inclined passage 3 y and is positioned over the inclined passage 3 y of the shaft 3 and the fitting recess 2 y of the metal fitting body 2, thereby preventing the rotation of the shaft 3. (See the position of the dashed line in Figure 19).

That is, even if the container ship Sh rolls or pitches, and the container Ct tilts or rocks, the lower corner fitting F separates from the sliding member 64 so that the ball 8 5 The rotation of the shaft 3 is prevented by the torsion panel 34, so that the lower metal fitting 5 overlaps the lower fitting part 23 by the urging force of the torsion panel 34. Does not rotate.

As a result, the lower bracket 5, i.e., the container connecting metal 1 is disengaged from the engaging hole Fa of the upper corner metal F in the lower container C t, and the connected state of the upper and lower containers C t by the container connecting metal 1 is released. Can be reliably prevented from being performed. On the other hand, when unloading container Ct from container ship Sh, container Ct may be lifted via container crane Cr. That is, if the upper container C t is lifted, first, only the upper container C t rises by the height of the notch 4 X of the upper bracket 4. At this time, the lower corner fitting Fa of the upper container Ct is detached from the driving member 64, and the shaft 3 is pushed by the urging force of the torsion panel 34 until the upper fitting comes in contact with the stopper 24. Turn counterclockwise. At this time, since the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23, the container connecting metal fitting 1 can be detached from the upper corner metal fitting F of the lower container Ct. At this time, since the tip of the sliding member 64 'is pushed back through the engaged portion 3a of the shaft 3, the sliding member 64 is pushed up along the guide passage 21d.

If the container C t is transferred to the apron A p, if the operation rod 2 4 1 is pushed down in the apron A p, the horn and ° 24 will be retracted inside the bracket body 2, and the torsion panel 3 The shaft 3 is rotated counterclockwise by the urging force of 4, and the upper metal fitting 4 is rotated to a position overlapping the upper fitting portion 22. Therefore, the upper fitting 4 and the upper fitting portion 22 can be detached from the engaging hole Fa of the lower corner fitting F in the container Ct.

Further, FIGS. 20 and 21 show a fourth embodiment of the container connecting fitting 1 of the present invention. In describing the fourth embodiment of the container connecting fitting 1, the same reference numerals are given to the same members as those constituting the first embodiment of the container connecting fitting 1 described above, and a detailed description thereof will be given. Are omitted, and only the rotating mechanism 6 and the safety mechanism 8 that are different from the first embodiment will be described.

The rotating mechanism 6 of the container connection fitting 1 includes a lifting member 65 fitted in a vertically movable manner along the outer peripheral surface of the shaft 3, and a spring 6 6 for urging the lifting member 65 to the raised position. And a spiral groove 3 z formed on the outer peripheral surface of the shaft 3. On the outer peripheral surface of the elevating member 65, the pair of operating portions 651 are displaced by 180 degrees and directed outward. And the tip thereof protrudes beyond the upper surface of the main body 21 of the metal fitting main body 2. Further, the elevating member 6 5, pin 6 5 2 is provided to be fitted in the spiral groove 3 _Z of the shaft 3.

On the other hand, as the safety mechanism 8, one end is opened in the hollow portion 2 f of the metal fitting body 2, and a pair of descending inclined passages 2 X formed to extend in the diameter direction of the through hole 2 d, and each inclined passage 2 X. A plurality of balls 85 as rolling elements rotatably arranged in 2X, and a pair of balls formed at 180 ° intervals on the elevating member 65 corresponding to the opening of the inclined passage 2X. When the elevating member 65 is in the ascending position by the biasing force of the spring 66, each inclined passage 2X of the bracket body 2 and each fitting recess of the elevating member 65 are formed. When the elevating member 65 is at the lowered position against the biasing force of the spring 66, the inclined passage 2X of the metal fitting body 2 and the elevating member 65 are not connected. The fitting recesses 65X are set so as to communicate with each other.

Here, the inclined passage 2X and the fitting concave portion 65X are provided at positions that are displaced by a predetermined angle at intervals of 180 degrees so as not to interfere with the operation portion 651.

A pressing member 67 urged to protrude from the upper surface of the main body 21 via a spring 68 is provided on the main body 21 of the bracket main body 2 so as to be able to come and go. When the member 67 is in the raised position by the biasing force of the spring 68, the pawl 85 is accommodated in the inclined passage 2X, and the pressing member 67 is in the lowered position against the biasing force of the spring 68. Is set so that the ball 85 is pushed out along the inclined passage 2X, and the ball 85 on the other side is accommodated in each fitting recess 65X of the elevating member 65. In this case, the pressing members 67 protrude from the upper surface of the main body 21 of the bracket main body 2. The protruding height is set smaller than the protruding height of the operating portion 651 of the elevating member 65.

Next, the operation of the fourth embodiment of the container connection fitting 1 configured as described above will be described.

First, in the initial state, the upper bracket 4 is in contact with the stopper 24 and is in a position where it engages with the engagement hole Fa of the lower corner bracket F of the container Ct. It is located at a position overlapping with the lower fitting portion 23 of the fitting body 2. The elevating member 65 is located at the ascending position by the urging force of the spring 66, and the operating portion 65 1 protrudes upward from the upper surface of the main body 21 of the bracket main body 2. Further, the operation lever 71 is connected to the container connecting member 1 housed in the housing portion 21b of the metal member main body 2 with a margin to the inner part with a margin to the engagement hole F a of the corner metal member F of the container C t. First, push down the operating rod 2 41 against the urging force of the spring, and retract the stopper 24 from the position protruding from the upper surface of the upper fitting portion 22 to the inside of the bracket body 2. Let At this time, the shaft 3 is rotated by the urging force of the torsion spring 34 to a position where the upper fitting 4 overlaps the upper fitting portion 22. For this reason, the operation lever 71 is pulled rearward through the control cable 72 by an amount corresponding to the rotation of the shaft 3, and is stored in contact with the inner part of the storage portion 21 b of the metal fitting body 2. In addition, when the shaft 3 rotates, the spiral groove 3z does not interfere with the pin 652 of the elevating member 65, and the elevating member 65 is not raised.

In this state, the container connecting fitting 1 is lifted, and the upper fitting 4 is inserted into the lower corner fitting F through the engaging hole Fa of the lower corner fitting F of the suspended container ct. Thereafter, when the operating lever 71 is pulled, the shaft 3 rotates clockwise, and the upper bracket 4 rotates to a position in the lower corner bracket F where it engages with the engagement hole Fa. . At this time, the stopper 24 protrudes from the upper surface of the upper fitting portion 22 by the biasing force of the spring, and thereafter, the upper bracket 4 contacts the stopper 24 and is prevented from rotating further in the counterclockwise direction. And is held at a position where it engages with the engagement hole Fa of the lower corner fitting F. Further, by rotating the shaft 3 clockwise by a certain angle, the relationship of the spiral groove 3 z of the shaft 3 with respect to the elevating member 65 is shown in FIG. Has returned to the state of -In this case, the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23. In addition, the container connecting fitting 1 descends by its own weight, and the notch 4X of the upper fitting 4 comes in contact with the inner peripheral edge of the engaging hole Fa of the lower corner fitting F to be supported and fitted to the upper side. The part 22 is partially fitted into the engagement hole Fa of the lower corner fitting F.

When the upper fitting 4 is engaged with the engagement hole Fa of the lower corner fitting F of the container C t and the container connecting fitting 1 is attached, the container C t is lifted using the container crane Cr, Load on container ship Sh. At this time, since the upper fitting 4 is located at a position where the upper fitting 4 is engaged with the engaging hole Fa of the lower corner fitting F in the lifted container Ct, the container Ct is moved from the apron Ap to the deck of the container ship Sh. Until the container is transported upward, the container connecting fitting 1 does not fall off the lower corner fitting F of the container Ct.

On the other hand, since the lower metal fitting 5 is located at a position overlapping with the lower fitting portion 23, the lower metal fitting 5 is passed through the engaging hole Fa of the upper corner metal fitting F of the lower container Ct previously loaded. It can be inserted into the upper corner fitting F. At this time, the lower fitting portion 23 is fitted into the engaging hole Fa of the upper corner fitting F.

If the upper container C t is lowered, the lower surface of the main body 21 of the metal fitting body 2 is placed on the upper corner F of the lower container C t, and then the upper container C t is moved to the upper metal fitting. 4 Notch 4 Lowers by a height equivalent to the height of X. At this time, the lower corner metal fitting F comes into contact with the operation part 651 of the elevating member 65 protruding above the main body part 21 of the metal fitting body 2 and loads the weight of the upper container Ct. The lifting member 65 is pushed down along the shaft 3 via the part 651. If the elevating member 65 descends against the biasing force of the spring 66, the pin 652 provided on the elevating member 65 also descends and pushes down the spiral groove 3z of the shaft 3, so that the shaft 3 rotates clockwise to rotate the lower metal fitting 5 to a position where the lower metal fitting 5 is engaged with the engagement hole Fa inside the upper corner metal fitting F of the lower Yuntena Ct. Similarly, the upper fitting 4 is also rotated to a position further engaging with the engagement hole Fa of the lower corner fitting F in the upper container Ct. Finally, the lower surface of the lower corner fitting F of the upper container Ct is placed on the upper surface of the main body 21 of the fitting main body 2. On the other hand, at the time of lowering of the container Ct, when the lower corner fitting F comes into contact with the operating portion 651 of the elevating member 65 and starts to push down the elevating member 65 along the shaft 3, then the pressing member 67 is also pressed. The pressing member 67 is pressed down against the urging force of the spring 68. For this reason, the pole 85 arranged in the inclined passage 2X is pushed up along the inclined passage 2X by the pressing member 67, and the elevating member 65, which starts descending the ball 85 ahead first. In the fitting recess 65X. In this case, the return of the ball 85 is prevented by the pressing member 67.

The clockwise rotation of the shaft 3 causes the operation lever 71 to correspond to the locking portion 21a from the housing portion 21 of the metal fitting body 2 via the control cable 72 connected to the shaft 3. It is pushed out to the position.

By the way, in a state where the upper and lower containers C t are connected via the container connection fitting 1 and the container ship Sh rolls and inclines more than a certain angle with respect to the horizontal plane, one of the balls 8 5 rolls along the inclined passage 2X and straddles the fitting recess 65X of the elevating member 65 and the inclined passage 2X formed in the bracket body 2, so that the elevating member 65 is prevented from rising. Is done.

• In other words, even if the container ship Sh rolls or pitches and the container Ct is tilted or jogged, the pressing member can be pressed even if the lower corner fitting F is disengaged from the operation section 651. As long as the ball 85 is not detached from the lifting member 67, the ball 85 is housed in the fitting recess 65X of the lifting member 65, so that the lifting member 65 is prevented from rising. Here, since the rotation of the shaft 3 in the clockwise direction is performed by the elevation of the elevating member 65, as long as the elevation of the elevating member 65 is restricted, the lower metal fitting 5 is provided by the urging force of the torsion panel 34. Does not rotate to the position where it overlaps the lower fitting portion 23.

As a result, the lower bracket 5, i.e., the container connecting metal 1 is disengaged from the engaging hole Fa of the upper corner metal F in the lower container C t, and the connected state of the upper and lower containers C t by the container connecting metal 1 is released. Can be reliably prevented from being performed. On the other hand, when unloading the container Ct from the container ship Sh, the container Ct may be lifted via the container crane. That is, if the upper container C t is lifted, first, only the upper container C t rises by the height of the notch 4 X of the upper bracket 4. At this time, the lower corner fitting F of the upper container Ct starts to be simultaneously released from the pressing member 67 and the operating section 651, so that the ball 85 first rolls along the inclined passage 2X. The lifting member 65 is moved out of the fitting recess 65 X of the lifting member 65, and the lifting member 65 is raised by the urging force of the spring 66, so that the pin 652 of the lifting member 65 becomes a spiral groove of the shaft 3. 3 Push z up. At the same time, the shaft 3 is rotated counterclockwise by the urging force of the torsion panel 34, and the upper bracket 4 is rotated to a position where it comes into contact with the stopper 24. At this time, since the lower metal fitting 5 is located at a position overlapping the lower fitting portion 23, the container connecting metal fitting 1 can be detached from the upper corner metal fitting F of the lower container Ct.

· If the container Ct is transferred to the apron Ap, if the operation rod 2 41 is pushed down on the apron Ap, the stopper 24 is retracted inside the metal fitting body 2, so that the torsion panel 3 4 The biasing force causes the shaft 3 to rotate counterclockwise, thereby rotating the upper fitting 4 to a position overlapping the upper fitting portion 22. Therefore, the upper metal fitting 4 and the upper fitting part 22 can be detached from the engaging hole Fa of the lower corner metal fitting F of the container Ct.

In the above-described fourth embodiment, the case where the spiral groove 3 _Z is formed in the shaft 3 —the case where the pin 652 is provided in the elevating member 65 and the spiral groove 3 z is inserted is exemplified. A spiral groove is formed on the inner peripheral surface side of the member 65, and a pin is provided on the shaft 3 to fit into the spiral groove. " Further, in the above-described embodiment, the inclined passages 2X and 3y are not necessarily limited to the case where the inclined passages 2X and 3y are formed at a diameter direction of the through hole 2d or an extension direction thereof, that is, at intervals of 180 degrees. Also, the inclination angle with respect to the front-rear direction can be arbitrarily set. Further, the slopes of the inclined passages 2 x and 3 y are not limited to 5 degrees. Industrial applicability

As described above, according to the container connecting fitting of the present invention, although the structure is extremely simple, in use, the containers to be loaded are automatically and reliably connected only by stacking the container to be loaded on the lower container. It can be connected, and it can be automatically and reliably detached from the lower container simply by lifting the connected upper container, eliminating the need for operation of working tools and work at heights. It is also beneficial in terms of safety.

Claims

The scope of the claims

1. A fitting body having an upper fitting portion and a lower fitting portion that can be fitted into the engaging holes of the corner fittings of the container, a shaft rotatably supported by the fitting body, and upper and lower ends of the shaft. And an operating member for rotating the shaft.

The metal fitting body is provided with a rotating mechanism for rotating the shaft by using the load force of the container, and the shaft is configured to rotate the upper metal fitting to a position overlapping the upper fitting part. Panel means for urging the upper bracket, and a notch is formed in a lower corner on a lower surface side of a diagonal position of a side of the upper bracket which engages with an engagement hole of the corner bracket of the container. When the upper bracket is at a position where it engages with the engaging hole of the corner fitting of the container against the urging force of the panel means via the member, the lower bracket is in a position overlapping with the lower fitting portion, and When the corner fitting of the container presses the turning mechanism, the shaft is turned against the urging force of the panel means, and the lower fitting is turned to a position where it engages with the engaging hole of the corner fitting of the container. The corner fittings of the container rise along the cutouts of the upper fittings. And when separated from the rotating mechanism, is rotated by the urging force of the panel section of the shaft, container consolidation fitting, characterized in that pivoting in a position overlapping the lower bracket and the lower fitting part.

2. The rotating mechanism is a substantially right-angled triangular pressing piece slidably fitted along a guide hole and a guide groove formed in the metal fitting body, and is provided by a corner fitting of the container. 2. The container connection fitting according to claim 1, wherein the shaft is rotated by sliding the pressed pressing piece.

3. The rotating mechanism is composed of an elevating member that can be raised and lowered, and a refraction link mechanism that is in contact with the elevating member and is constantly urged in a direction of bending, and is pressed by the corner fitting of the container. 2. The container connection fitting according to claim 1, wherein the shaft is rotated by extending the refraction link mechanism via the raised / lowered member.

4. The rotating mechanism is a sliding member slidable along a guide passage formed in the metal fitting body, and a sliding member pressed by the corner fitting of the container slides along the guide passage. Claim 1 characterized by rotating the shaft by moving The container connection fitting described in the above.

5. The rotating mechanism is vertically movable along the outer peripheral surface of the shaft, and has an elevating member having a pin protruding inward; a spiral groove formed on the shaft and into which the pin of the elevating member is fitted; A spring for urging the elevating member to the ascending position, wherein the elevating member pressed by the corner fitting of the container descends to rotate the shaft. The described container connection bracket.

6. The rotating mechanism is movable up and down along the outer peripheral surface of the shaft, and an elevating member having a spiral groove formed on the inner peripheral surface; a pin provided on the shaft and fitted into the spiral groove of the elevating member; The spring configured to urge the elevating member to the upper position, and wherein the elevating member pressed by the corner fitting of the container descends to rotate the shaft. Container connecting bracket.

7. The operating member is composed of an operating lever, a connecting tool having one end connected to the operating lever, and the other end connected to the shaft, and the operating lever can be locked to the bracket body. 2. The container connection fitting according to claim 1, wherein a storage portion capable of storing the operation lever and a locking portion are formed.

8. A stopper is provided at one corner of the upper fitting portion of the metal fitting main body so as to be urged in a direction protruding from the upper surface thereof so as to be able to move up and down in the vertical direction. 2. The container connecting fitting according to claim 1, wherein the container connecting fitting is held at a position where the container fitting engages with the engaging hole of the corner fitting.

9. The bracket main body is provided with a safety mechanism for preventing rotation of the shaft due to the urging force of the panel means when the container coupling bracket is inclined at a predetermined angle with respect to the horizontal plane. 9. The container connecting fitting according to any one of claims 1 to 8.

10. The safety mechanism is provided so as to be movable in the front-rear direction with respect to the container main body, a lid covering the upper opening of the container main body, and a connecting member. And a rolling element disposed on an outwardly descending inclined surface formed on the container body and capable of rolling. 10. The container connecting fitting according to claim 9, wherein the rolling element prevents movement of the moving body when inclined.

11. The safety mechanism includes a downwardly inclined path formed in the metal fitting body, and a rolling element disposed on the inclined path and capable of rolling, and a fitting recess formed in the shaft. When the shaft is in the rotating position by the extended refraction link mechanism, the inclined passage of the bracket body and the fitting recess of the shaft communicate with each other. 10. The container connecting fitting according to claim 9, wherein the fitting is fitted into the fitting recess to prevent rotation of the shaft.

12. The safety mechanism comprises: an outwardly-inclined inclined passage formed in the shaft; a rolling element disposed in the inclined passage and capable of rolling; and a fitting recess formed in the bracket body. When the shaft is in the rotating position by the sliding member that slides, the inclined passage of the shaft communicates with the fitting recess of the metal fitting body. 10. The container connection fitting according to claim 9, wherein the moving body is fitted into the fitting recess to prevent rotation of the shaft.

13. The safety mechanism includes a downwardly inclined path formed in the metal fitting body, the rolling element being disposed in the inclined path and being rollable, and a fitting recess formed in the elevating member. When the elevating member is at the lowered position, the inclined passage of the bracket body and the fitting recess of the elevating member communicate with each other. 10. The container connecting fitting according to claim 9, wherein the fitting is fitted to the container to prevent the elevating member from rising.