WO2003106298A1

WO2003106298A1 - Container connector

Info

Publication number: WO2003106298A1
Application number: PCT/JP2003/006563
Authority: WO
Inventors: 高口　博行
Original assignee: 大洋製器工業株式会社
Priority date: 2002-06-17
Filing date: 2003-05-26
Publication date: 2003-12-24
Also published as: AU2003241779A1; JP2004018026A

Abstract

A container connector usable upside down. A connector main body (1) has a flange (2) and projection portions (3a, 3b) are provided on the upper and lower parts of the flange. A rotation shaft (7) penetrates through the projection portions (3a, 3b) and is provided such that the shaft is rotated by pulling operation of a wire (14) and is reverse-rotated by restoring elasticity of a spring (13). Engagement cones (8a, 8b) are provided on the upper and lower ends of the rotation shaft (7). Each cone is structured such that a pyramid portion (10) is formed on one face of a base plate portion (9). Tapered faces (11) are provided on one end portion of one-side face of and on the other end portion of the other-side face of the base plate portion (9). The upper and lower engagement cones (8a, 8b) are formed to the same shape and provided symmetrically in the vertical direction. The upper and lower engagement cones (8a, 8b) are positioned in an engagement position when the spring (13) extending in the radial direction of the rotation shaft (7) is in its natural state. This enables the container connector to be used upside down.

Description

Details

Container connector

The present invention relates to a plurality of stacked side plates.

Are connected to each other. Background art

Generally, when transporting a large number of containers by ship, these containers are stacked in multiple layers, but if they are simply stacked, there is a risk that the containers will collapse due to the shaking of the ship.

For this reason, the container and the container stacked on top of it are connected by a container connector to prevent the container from falling down.

As the above-mentioned container connector, the upper and lower corners of the upper container and the upper and lower flanges of the lower container are arranged above and below a flange disposed between the upper and lower corners. It has a connector main body provided with a protruding portion that fits, a rotary shaft penetrating the vertical protruding portion is provided on the connector main body, engagement cones are provided at both upper and lower ends of the rotary shaft, and a spring is connected to the rotary shaft. To apply a rotational force to the rotating shaft in the direction in which the upper and lower engaging cones rotate toward the engaging position, and connect one end of a rotating operation wire to the rotating shaft and operate the other end of the wire. A device provided with a knob for use is conventionally known. In the above-mentioned container connecting device, the upper and lower projecting portions are inserted into the engaging holes of the corner metal fittings which are vertically opposed to each other, and both ends of each engaging cone are engaged with the peripheral edge portion of the engaging hole to connect the upper and lower containers. They are connected to each other.

In addition, the rotating shaft is rotated by pulling the knob to disengage the lower engaging cone, and in the disengaged state, the upper container is pulled up to disconnect the upper and lower containers.

Here, in order to hold the lower engaging cone and the upper engaging cone at the disengaged position. Lock grooves are provided above and below the open end of the wire insertion hole formed in the connector body. At the other end of the wire, a locking projection is provided near the knob, the wire is inserted into the lower locking groove, and the wire is pulled out by engagement of the locking projection with the lower surface of the flange. Thus, the lower engaging cone is held in the disengaged state. By the way, in the above-mentioned container coupler, the upper and lower engaging cones are relatively out of phase in the circumferential direction of the rotating shaft and relatively inclined, and the rotation angle for rotating the upper engaging cone from the engaged position to the disengaged position is different. Because the rotation angle that rotates the lower engagement cone from the engaged position to the disengaged position is larger, if the container connector is used upside down by mistake, the upper connector to which the container connector is connected moves when the upper container is moved. However, when the lower engaging cone comes into contact with an obstacle to apply a rotating force to the rotating shaft, and the rotating force slightly rotates the rotating shaft, there is a risk that the upper engaging cone is easily disengaged and falls. There is a disadvantage that it cannot be used upside down.

In addition, since the rotating shaft is rotatable only in the direction rotated by pulling the wire when the upper and lower engaging cones are in the engaging position, the rotating shaft rotates to a position beyond the locking position of the lower engaging cone. When the upper engagement cone is disengaged, the wire is sent outward. At this time, if the other end of the wire is bent, the locking groove is on the lower side, so the weight of the knob is also added, and the other end of the wire naturally fits into the lower locking groove, and the upper When the mating cone is rotated to the engaged position by the elastic force of the spring connected to the rotating shaft, the locking projections naturally engage with the lower surface of the flange, and the lower engaging cone is kept in the disengaged state May be done.

In this case, even if the suspended supported container is lowered to the position where it is placed on the upper surface of the stacked container, the lower engaging cone is simply inserted into the engaging hole of the upper corner fitting of the lower container. However, there is a problem that the upper and lower containers cannot be connected without being engaged.

An object of the present invention is to lock the wire in a pulled-out state even when the lower engaging cone is rotated and the upper engaging cone is disengaged, in addition to being able to be used safely even if it is turned upside down. The purpose is to provide a highly secure container connector that prevents the mechanism from operating. Disclosure of the invention

In order to solve the above-mentioned problems, according to the present invention, there is provided a connector main body provided with upper and lower flanges with protrusions which almost exactly fit into substantially oval engagement holes formed in corner fittings of a container. A rotatable rotating shaft that penetrates both of the protrusions, and upper and lower ends of the rotating shaft provided with engagement cones whose both ends in the length direction can be engaged with the peripheral edge of the engagement hole; A spring for returning and rotating the rotation shaft is connected to the rotation shaft, and a wire By pulling a headed knob provided at the other end of the wire, the rotating shaft is rotated to rotate the upper and lower engaging cones to the disengaged position, and a locking mechanism is provided. In the container connecting device capable of holding the wire at the drawn-out position by the above, each of the engaging cones has a base plate portion, a portion from one side center portion to one end of the base plate portion, and another side center portion. The upper and lower engaging cones have substantially the same shape by providing a tapered surface at the portion from the upper end to the other end, and the upper and lower engaging cones are provided symmetrically in the vertical direction with the length direction substantially the same direction, and are returned and rotated by the spring. The configuration is such that each engagement cone is in the engaged state when the rotating shaft is stopped.

As described above, the upper and lower engaging cones have the same shape and are arranged vertically symmetrically, so that the upper and lower containers can be reliably connected even when the container connecting tool is used upside down. Upside down use of the coupler can be enabled.

In order to connect the container connector to the corner fitting on the lower surface of the suspended and supported container, the lower cone is rotated to rotate the upper engaging cone in the direction to disengage. Wire is wound around the outer periphery of the rotating shaft and pulled into the connector body.Therefore, the locking mechanism that locks the wire when it is pulled out does not operate, and the lower engagement connector disengages. It is not held in state.

Therefore, when the upper engaging cone is rotated to the engaging position by the elasticity of the spring connected to the rotating shaft, the lower engaging cone is also brought into the engaged state, and the suspended container is suspended. The lower engaging cone can be engaged with the peripheral edge of the engaging hole of the upper corner fitting of the lower container by lowering the upper container to the container stacked first, and the upper and lower containers can be securely connected. Can be.

In the container coupling device according to the present invention, the rotation angle of the rotation shaft is determined by: a position where the rotation shaft is rotated in one direction by an operation of pulling a wire to disengage the upper engagement cone; If a limiting mechanism is provided to limit the rotation angle of the rotating shaft so that it is in the range of the position where the upper engaging cone is disengaged by rotating the rotating shaft in the other direction by rotating the cone, the lower engaging cone When the upper engaging cone is rotated to the disengaged position by applying a rotational force, the rotation shaft is prevented from rotating and the upper engaging cone is held in the disengaged state, so the lower surface of the suspended and supported container The operability when inserting the upper engaging cone into the engaging hole of the corner fitting can be improved.

As the limiting mechanism, one having a configuration in which an arc-shaped groove is formed on an inner periphery of a shaft insertion hole provided in a protruding portion, and a projection inserted into the arc-shaped groove is provided on an outer periphery of the rotation shaft. adopt be able to.

In the container connector according to the present invention, a detent mechanism for preventing the rotation shaft from rotating in the direction in which the upper engagement cone is disengaged is provided between the connection device main body and the rotation shaft, When the container connecting tool moves the connected container, the rotation shaft does not rotate even if the lower engagement cone contacts an obstacle, and the upper engagement cone is held in the engaged state. It is possible to prevent the connector from falling.

As the detent mechanism, a stopper insertion hole which penetrates the upper and lower surfaces of the flange and communicates with the shaft insertion hole is provided in the connecting member body, and the stopper is slidably inserted into the stopper insertion hole, The rotating shaft may be configured to have a configuration in which a stopper protruding downward below the lower surface of the flange is provided with a projection that faces the stop in the circumferential direction of the rotating shaft when the stopper is stopped. .

Here, the stopper may be provided with a pin on the outer periphery of the round shaft portion, or may be formed of a pole. BRIEF DESCRIPTION OF THE FIGURES

1 is a longitudinal sectional front view showing an embodiment of the container connecting device according to the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG. 1, FIG. 4 is a longitudinal sectional side view of FIG. 1, FIG. 5 is a plan view showing the relationship between the upper engaging cone and the lower engaging cone (I) to (III), and FIG. 6 is a lower engaging cone of FIG. FIG. 7 is a cross-sectional plan view showing another embodiment of the container connector according to the present invention, and FIG. 8 is a cross-sectional plan view showing another embodiment of the container connector according to the present invention. FIGS. 9 (I) to 9 (III) are cross-sectional plan views showing another example of the locking mechanism of the container connecting device according to the present invention, and FIGS. 10 (I) to 10 (III). ) Is a cross-sectional view showing still another example of the locking mechanism of the container connector according to the present invention, and FIG. 11 is a detent mechanism of the container connector according to the present invention. Is a vertical sectional side view shows the other example. BEST MODE FOR CARRYING OUT THE INVENTION

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

As shown in FIGS. 1 to 4, the connector body 1 includes a flange 2 disposed between a corner fitting C on the lower side of the upper container of the stacked container and an upper corner fitting C of the lower container A _2. And a pair of protrusions 3 a and 3 b are provided above and below the flange 2. ing. The protrusions 3 a and 3 b are sized to fit almost exactly into the substantially oval engagement holes H formed in the corner fitting C.

The coupling body 1 has a hollow chamber 4, a shaft insertion hole 5 that penetrates the hollow chamber 4 from the end faces of the upper and lower protrusions 3a and 3b, and a hole that penetrates the outer peripheral part of the flange 2 into the hollow chamber 4. The wire insertion hole 6 is formed.

The rotating shaft 7 is inserted into the shaft insertion hole 5, and engagement cones 8 a and 8 b are provided at upper and lower ends of the rotating shaft 7. The engagement cones 8 a and 8 b have a pyramid portion 10 having a rounded tip at one end of the base plate portion 9. The base plate portion 9 is sized to fit within the outer peripheral surfaces of the protrusions 3a and 3b, and a taper surface is provided at a portion from one side of the center to one end and at a portion from the center to the other end of the other side. 1 1 is provided.

The upper and lower engaging cones 8a and 8b have the same shape, and are provided at both ends of the rotating shaft 7 so that their longitudinal directions substantially coincide with each other, and are arranged vertically symmetrically.

The engaging cones 8a and 8b have both ends projecting in a state in which their longitudinal direction is oriented in a direction orthogonal to the longitudinal direction of the end faces of the projecting portions 3a and 3b. , 3b so that they protrude from both sides. This state is the engagement state of the engagement cones 8a, 8b. On the other hand, the state in which the engagement cones 8a, 8b fit within the outer peripheral surfaces of the protrusions 3a, 3b is the engagement release state. .

As shown in FIGS. 1 and 3, a connecting piece 12 is provided on the outer circumference of the rotating shaft 7, and a spring 13 is connected to the connecting piece 12. The spring 13 extends in the radial direction of the rotating shaft 7 and pulls the rotating shaft 7 in the radial direction. When the rotating shaft 7 is rotated, the spring 13 is extended, and the rotating shaft 7 is restored by the elasticity of the spring 13. The upper and lower engaging cones 8a and 8b are rotated back to the engaged positions.

In the embodiment, one end of the spring 13 is connected to the connecting piece 12 so as to pull the rotary shaft 7 in the radial direction. The end of the compression spring may be inserted into the hole, the compression spring may be deformed when the rotation shaft 7 rotates, and the rotation shaft 7 may be returned and rotated by a restoring force due to the deformation. One end of a wire 14 is connected to the connecting piece 12 of the rotating shaft 7. One end of the wire 14 is wound around the outer periphery of the rotating shaft 7, extends in the tangential direction of the outer periphery of the rotating shaft 7, and is inserted into the wire insertion hole 6 formed in the connector body 1.

At the other end of the wire 14, a knob 15 with a head is fixed, and by pulling the knob 15, the rotating shaft 7 is rotated. By the rotation of the rotating shaft 7, the lower engaging cone 8 b is Person in charge It is rotated to the engagement release position. Further, by further pulling the wire 14 from the state where the lower engagement cone 8b is rotated to the disengagement position, the upper engagement cone 8a is rotated to the disengagement position.

The wire 14 is locked in a pulled-out state by a locking mechanism 20 provided between the wire 14 and the connector body 1. The locking mechanism 20 has a locking projection 21 fixedly attached to the other end of the wire 14 at a distance from the knob 15, and a locking projection 2 between the locking projection 21 and the knob 15. A spring 23 with almost the same diameter as 1 is incorporated, while locking grooves 2 2 a and 22 b into which the wires 14 can be inserted are inserted into the upper and lower ends of the open end of the wire insertion hole 6. The wire 14 is inserted into the locking groove 22a or 22b, and the wire 14 is inserted by engaging the locking projection 21 with the upper or lower surface of the flange 2. It is locked at the position where it is pulled out.

Here, when the locking projection 21 is engaged with the lower surface of the flange 2, the lower engagement connector 8b is held in the disengaged state, and the wire is inserted into the upper locking groove 22a. When the engagement projections 14 engage with the engagement projections 21 on the upper surface of the flange 2, the upper engagement cone 8a is held in the disengaged state.

As shown in FIGS. 1 and 2, between the rotating shaft 7 and the shaft insertion hole 5 of the upper projecting portion 3a, a limiting mechanism 30 for limiting the rotating angle of the rotating shaft 7 is provided. The limiting mechanism 30 has an arc-shaped groove 31 formed on the inner periphery of the shaft insertion hole 5 and a projection 32 inserted into the arc-shaped groove 31 on the outer periphery of the rotating shaft 7. The rotation angle of the rotating shaft 7 is limited by the contact of the projection 32 with the both ends of the groove 31.

Here, when the rotating shaft 7 is rotated in the counterclockwise direction (one direction) in FIG. 2 to bring the protrusion 32 into contact with one end of the arc-shaped groove 31, the upper engaging cone 8 a is disengaged. It is said. When the rotating shaft 7 is rotated in the clockwise direction (other direction) in FIG. 2, the lower engaging cone 8 b is engaged at a position slightly before the protrusion 32 comes into contact with the other end of the arc-shaped groove 31. When the projection 32 is brought into contact with the other end of the arc-shaped groove 31 at the same time as the release state, the engagement cone 8b is brought into the engagement state.

As shown in FIG. 4, between the connecting member main body 1 and the rotating shaft 7, there is a rotary member for preventing the rotating shaft 7 from rotating in the direction in which the upper engagement connector 8a is disengaged. A stop mechanism 40 is provided.

The anti-rotation mechanism 40 has a stopper insertion hole 41 that penetrates the upper and lower surfaces of the flange 2 in the coupling body 1 and communicates with the hollow chamber 4, and the stopper 42 is formed in the stopper insertion hole 41. The stopper is inserted freely so that the lower part of the stopper 42 protrudes downward from the lower surface of the flange 2 on the outer peripheral surface of the rotary shaft 7 and faces the stop 42 and the rotary shaft 7 in the circumferential direction. The projection 43 is provided.

Here, the stopper hole 41 has a round hole 41a penetrating the upper and lower surfaces of the flange 2, and a pin hole 4 extending vertically along the inner periphery of the round hole 4a. The stopper 42, on the other hand, slides along the pin hole 41b around the outer periphery of the round shaft 42a inserted freely into the round hole 41a. A possible pin 4 2b is provided, and the lower end of the round shaft portion 4 2a is from the lower surface of the flange 2 when the stopper 4 2 stops when the pin 4 2 b comes into contact with the lower end of the pin hole 4 1b. The upper end of the round shaft 42 a protrudes upward from the upper surface of the flange 2 when the stopper 42 stops when the stopper 42 stops when the pin 42 b contacts the upper end of the pin hole 41 b. It has become.

Two projections 43 provided on the rotating shaft 7 are provided at an interval in the axial direction, and the lower projection 43 faces the pin 42b when the stopper 42 stops moving down. The protruding portion 4 3 is opposed to the pin 4 2 b when the stopper 42 is stopped from rising.

Container connector shown in the embodiment consists structure described above, when the coupling of the stacked containers A x, A _2, connecting the top of the container connector hanging supported container A of the lower surface of the Interview corner fittings C and, after ligation of the container connector, the container Α is lowered after having been moved up on the lower side container a ₂ stacked above the engaging hole H of the corner fitting C of the upper surface of the lower side container a ₂ Insert the lower part of the container connector into the container.

When connecting the container connector to the corner fitting C on the lower surface of the suspended and supported container A i, push up the stopper 42 and move the pin 42 b to the lower protrusion 43 in the axial direction of the rotating shaft 7. After the position is shifted to the position shown in FIG. 5 (I), a rotational force in the direction shown by the arrow in the figure is applied to the lower engaging cone 8b in the engaged state shown in FIG. The rotating shaft 7 is rotated until the position 3 2 comes into contact with one end of the arc-shaped groove 3 1, and the upper engaging cone 8 a is brought into the disengaged state as shown in FIG. I do.

Here, when a rotational force is applied to the lower engaging cone 8b to bring the upper engaging cone 8a into the disengaged state, the wire 14 is picked up, and the wire 15 is pulled into the connector body 1. Move in the direction. For this reason, even if the other end of the wire 14 is bent, the wire 14 does not fit into the locking groove 22 b, and the locking mechanism 20 is operated to engage the lower portion. : Pin 8b is not held in the disengaged state. Also, when the upper engaging cone 8a is disengaged, the spring 13 is extended, and the upper and lower engaging cones 8a and 8b rotate toward the engaging position by the restoring elasticity. A rotational force in the direction is applied to the rotating shaft 7.

After disengaging the upper engaging cone 8a, insert the upper engaging cone 8a and the upper protrusion 3a into the engaging hole H of the corner fitting C on the lower surface of the container Ai. Then, when the rotating operation force on the lower engaging cone 8b is released while the upper surface of the flange 2 is pressed against the lower surface of the corner fitting C, the rotating shaft 7 is rotated by the restoring elasticity of the springs 13 and FIG. 5 (I) Both ends of the upper engaging cone 8 a engage with the peripheral edge of the engaging hole H as shown in FIG. By this engagement, the container connecting tool is connected to the corner fitting C.

After the container connector is connected, when the lifting of the stopper 42 is released, the stopper 42 is lowered by its own weight to a position where the pin 42b is supported by the lower end of the pin hole 41b.

With the stopper 42 stopped in the downward movement, the pin 42b faces the lower projection 43 provided on the rotating shaft 7 in the circumferential direction of the rotating shaft 7, and the lower projection 4 corresponds to the pin 42b. By the engagement of 3, the rotating shaft 7 is prevented from rotating in the direction in which the upper engaging cone 8a is disengaged.

For this reason, when moving the suspended and supported container A onto the container A ₂ stacked first, the lower engaging cone 8 b abuts against an obstacle and the upper engaging cone 8 a The rotation shaft 7 does not rotate even if a rotational force in the direction of releasing the engagement is applied, and the upper engagement cone 8a is held in the engaged state. Therefore, there is no inconvenience that the container connector falls when the container At is moved, and the container can be moved extremely safely.

The container A: L is moved to above the container A ₂ stacked above is lowered, when揷入the engaging hole H of the upper surface corner fitting C of the lower side container A _2, of the engaging hole H The direction in which the lower engaging cone 8b is disengaged by contact with the circumference and the lower engaging cone 8b is applied with a rotational force in the direction opposite to the direction indicated by the arrow in FIG. Is rotated. When the lower engaging cone 8b enters the engaging hole H of the lower corner bracket C, the lower engaging cone 8b is in the disengaged state as shown in FIG. 5 (III) — (mouth). Is done. At this time, the upper engaging cone 8a is in the engaged state as shown in FIG. 5 (III)-(a) and is not disengaged.

When the lower engaging cone 8b rotates to the disengaged state, the spring 13 is stretched, and the lower engaging cone 8b moves toward the engaging position on the rotating shaft 7 due to its resilience. And a rotational force in the direction of rotation.

When the upper-side container is lowered to a position where the corner bracket C of the upper-side container is supported by the flange 2, the lower protrusion 3b is inserted into the engagement hole H of the lower-side corner bracket C, and The engagement cone 8b descends to a position passing through the engagement hole H.

When the lower engaging cone 8b passes through the engaging hole H, the rotating shaft 7 is rotated by the restoring elasticity of the spring 13 and the lower engaging cone 8b is as shown in FIG. 5 (I) — (port). In this state, both ends are engaged with the peripheral edge of the engagement hole H, and the upper and lower containers A ₂ are held in a connected state by the engagement.

1 and 4 show the upper and lower container A t, the state of connecting the A ₂ each other.

When unloading the container, pull down the knob 15 shown in Fig. 1 while pulling it outward, pull out the wire 14 until the locking projection 21 is pulled out, and then pull out the wire 14 The end is fitted into the locking groove 22b, and the locking projection 21 is engaged with the lower surface of the flange 2 as shown in FIG.

By pulling the wire 14, the rotating shaft 7 rotates, and the lower engaging cone 8b rotates in the disengaging direction. When the wire 14 is pulled out to a position where the locking projection 21 faces the outside of the wire insertion hole 6, the lower engaging cone 8b is disengaged, and the locking projection 21 is attached to the lower surface of the flange 2. , The wire 14 is held in the pulled-out state, and the lower engaging cone 8b is held in the disengaged state.

Then, when the upper container A: ^ is lifted, the lower projecting portion 3 b and the lower engaging cone 8 b are pulled out from the engaging hole H of the lower corner metal fitting C, and the upper container A: t is lowered. are decoupled from the container a _2, Ru can offload upper side container.

At this time, the container connector is unloaded together with the upper container At while being connected to the corner fitting C on the lower surface of the upper container Ai.

When removing the container connector connected to the lower corner fitting C of the upper container A i, push up the stopper 42 and move the pin 42 b from the projection 43 to the axial position of the rotating shaft 7. After the displacement, a rotational force is applied to the lower engaging cone 8b to rotate the rotating shaft 7 to a position where the projection 32 of the limiting mechanism 30 contacts the other end of the arc-shaped groove 31. At this time, since the wire 14 is pushed out from the wire insertion hole 6, the locking projection 21 of the locking mechanism 20 is disengaged, and the locking projection 21 is placed on the upper surface of the flange 2. By engaging, the wire 14 is held in the pulled-out state, and the upper engaging cone 8a is disengaged. Is a state, the container connector is lowered by its own weight, the upper projecting portion 3 a and an upper engaging cone 8 is brought out from the engagement hole H of the corner fitting C, shown in the form of a _c implementation can be detached container connector As described above, each of the upper engaging cone 8a and the lower engaging cone 8b is provided with a pyramid portion 10 on one surface of the base plate portion 9, and is provided from one side center of the base plate portion 9 to one end. The upper and lower engaging cones 8a and 8b have the same shape with tapered surfaces 11 provided at the leading edge and the other side center to the other end. vertical by providing symmetrical, it is possible that the container connector is securely connected the upper and lower container a, the a _2, even when used upside down.

When connecting the container connector to the corner fitting C on the lower surface of the suspended and supported container Ai, the lower engaging cone 8b rotates the taper surface 11 provided on the base plate portion 9. When the lower engaging cone 8b is rotated so that it faces the front, and the upper engaging cone 8a is disengaged, the wire 14 has a knob 15 at the other end and the wire 15 has a wire insertion hole. Since the wire 14 moves in the direction of being drawn into the wire 14, even if the other end of the wire 14 is bent, the wire 14 does not fit into the locking groove 22b, and the lower engaging cone There is no inconvenience that 8b is held in the disengaged state.

Therefore, depending on the rear upper side container A t consolidated lower surface of the container coupling for the corner fitting C of, be揷入the lower portion of the engagement cone 8 b to the engaging hole H of the lower side container A _2, lower the engagement cones 8 b of the can engage the periphery of the engaging hole H, to securely couple the upper and lower container a, the a _2.

FIG. 7 shows another embodiment of the container connector according to the present invention. In this embodiment, when the upper container moves, the lower engaging cone 8b of the container connector connected to the corner fitting on the lower surface collides with the obstacle and the impact force in the direction of rotating the rotary shaft 7 is reduced. When provided, a shock absorbing mechanism 50 for damping the impact force is provided to prevent the parts such as the wires 14 from being damaged.

The buffer mechanism 50 divides the wire 14 in the length direction, fixes a spring seat 51 to each of the split ends, and overlaps the split ends of the wire 14 with each other to form a pair of spring seats 5. A buffer spring 52 is incorporated between 1.

As described above, when the buffer mechanism 50 is provided, the impact force in the rotational direction in which the wire 14 is drawn into the lower engagement cone 8b while the wire 14 is locked by the locking mechanism 20 is applied. When it is received, the buffer spring 52 contracts and absorbs the impact force. For this reason, it engages with the connection between the wire 14 and the rotating shaft 7 and the open end of the wire locking groove 22 b. An impact force can be prevented from being applied to the locking projection 21 or the wire 14, which is effective in preventing damage.

FIG. 8 shows another example of the buffer mechanism 50. In this example, a hole 12a is provided in the connecting piece 12 provided on the outer periphery of the rotary shaft 7, one end of the wire 14 is inserted into the hole 12a, and one end of the wire 14 is inserted. The retaining projections 5 3 are fixed to the bosses, and the cushioning springs 5 are incorporated between the retaining projections 5 3 and the connecting pieces 12 to cushion the buffering force applied to the lower engaging cone 8 b. The springs 54 are buffered by contraction.

9 and 10 show another example of the locking mechanism 20 that locks the wire 14 in a state where the wire 14 is pulled out. In the locking mechanism 20 shown in FIG. 9, a small-diameter locking projection 21a and a large-diameter locking projection 21b are provided at the other end of the wire 14 at an interval. A spring 24 whose outer diameter is almost the same as the outer diameter of the small-diameter locking projection 21 1a is incorporated between the projections 21a and 21b, and the large-diameter locking projection 21b and the knob 15 A spring 25 whose outer diameter is substantially the same as the outer diameter of the large-diameter locking projection 21b is incorporated between the two.

Also, the width of the locking groove 22 a provided above the open end of the wire insertion hole 6 is slightly larger than the outer diameter of the wire 14, and the locking groove provided below the open end. The groove width of 22 b is slightly larger than the outer diameter of the spring 24.

With the above configuration, it is not necessary to displace the locking grooves 22a and 22b in the length direction of the wire insertion hole 6, so that the locking grooves 22a and 22b are not provided. Since the opening end face of the wire insertion hole 6 can be made substantially vertical while the processing is easy, a container connector having good appearance can be obtained.

In the locking mechanism 20 shown in FIG. 9, the small-diameter locking projection 21a is fixed to the wire 14, but the locking projection 2la is movable along the wire 14. A sleeve for limiting the amount of movement of the locking projection 21a is fixed to the wire 14 and the locking projection 21a is pressed against the sleeve by the spring 24, and the rotating shaft 7 is wired to the lower engagement cone 8b. The spring 24 may be elastically deformed to absorb the above-mentioned impact when an impact in the direction of winding the 14 is applied.

In the locking mechanism 20 shown in FIG. 10, a stepped locking projection 26 composed of a small-diameter shaft portion 26 a and a large-diameter shaft portion 26 b is fixed to the other end of the wire 14. A spring 27 is incorporated between the locking projection 26 and the knob 15.

In addition, the width of the locking groove 22 a provided at the upper end of the opening of the wire insertion hole 6 is set slightly larger than the outer diameter of the wire 14, and the width of the locking groove 2 a provided at the lower part of the opening is reduced. 2b groove The width is slightly larger than the outer diameter of the small diameter shaft portion 26 a of the stepped locking projection 26. With the configuration described above, it is not necessary to displace the locking grooves 22 a and 22 b in the length direction of the wire insertion hole 6 as in the case shown in FIG. 9. The processing of 22a and 22b is easy, and the opening end face of the wire insertion hole 6 can be made substantially vertical, so that a container connector having good appearance can be obtained.

FIG. 11 shows another example of a detent mechanism 40 that detents the rotation shaft 7. In the anti-rotation mechanism 40 shown in this example, the connecting member body 1 is provided with stopper holes 45 penetrating through the upper and lower surfaces of the flange 2 and communicating with the empty space 4. 5 has a length whose both ends are located above and below the upper and lower surfaces of the flange 2, and a stopper 46 composed of a ball is movably incorporated in the stopper hole 45.

As described above, by using the stopper 46 as a pole, the pole 46 can be moved up and down smoothly by its own weight, and high-precision machining is not required for the stopper hole 45. The machining of the stopper holes 45 can be facilitated. Industrial applicability

As described above, in the present invention, the engagement cones provided at the upper and lower ends of the rotating shaft are configured such that the pyramid portion is provided in the base plate portion, and the portion extending from the center to one end of one side surface of the base plate portion is provided. A tapered surface is provided from the center to the other end of the other side surface, the upper and lower engaging cones have the same shape, are provided vertically symmetrically at both ends of the rotating shaft, and the spring naturally pulls the rotating shaft in the radial direction. Since the upper and lower engaging cones are held in the engaged state in this state, the container connecting tool can be used upside down, and the container connecting operation can be performed efficiently.

Claims

s S

1. A coupling tool body provided with protrusions at the upper and lower parts of the flange, which are fitted into substantially oblong engagement holes formed in the corner fittings of the container, and which are fitted to almost all of the holes. A rotating shaft is provided, and at both upper and lower ends of the rotating shaft, engaging cones are provided at which both ends in the length direction can be engaged with the peripheral edge of the engaging hole, and the rotating shaft is returned to the rotating shaft. Rotate the spring, connect one end of the wire, and pull the knob with the head provided at the other end of the wire to rotate the rotating shaft and disengage the upper and lower engaging cones In the container connector, the engagement cone has a base plate portion, and one end from the center of one side surface of the base plate portion. And the other side from the center to the other side The upper and lower engaging cones have substantially the same shape by providing a taper surface at the portion reaching the upper and lower portions, and the upper and lower engaging cones are provided in a vertically symmetrical manner with the length direction substantially the same, and the return circuit is provided by the spring. A container coupling device, wherein each engagement cone is brought into an engagement state when the rotation shaft is stopped.

2. The rotation angle of the rotating shaft is determined by the operation of pulling a wire to rotate the rotating shaft in one direction to disengage the upper engaging cone and the lower engaging cone to rotate the rotating shaft. 2. The container connector according to claim 1, further comprising a restriction mechanism for restricting a rotation angle of the rotation shaft so as to be in a range of a position where the upper engagement cone is disengaged by being rotated in the other direction.

3. The limiting mechanism has a configuration in which an arc-shaped groove is formed on the inner periphery of a shaft insertion hole provided in the projecting portion, and a projection inserted into the arc-shaped groove is provided on the outer periphery of the rotating shaft. A container connector according to claim 2.

4. A detent mechanism for preventing rotation of the rotation shaft in a direction in which the upper engagement cone is disengaged is provided between the coupling body and the rotation shaft. The container connector described in Crab.

5. The detent mechanism penetrates the upper and lower surfaces of the flange in the connecting member body and provides a stopper insertion hole communicating with the shaft insertion hole, and the stopper is slidably inserted into the stopper insertion hole. 5. The container connector according to claim 4, wherein the rotating shaft has a configuration in which a stopper protruding downward below the lower surface of the flange is provided with a protruding portion facing the stop in a circumferential direction of the rotating shaft when the stopper is stopped. .

6. The stove is composed of a round shaft portion and a pin provided on an outer periphery of the round shaft portion. Item 6. The container connector according to Item 5.

7. The container connector according to claim 5, wherein the stopper comprises a pole.