JPH07277508A - Container piling-up method and device thereof - Google Patents

Abstract

PURPOSE:To reduce labor by lifting a conveyance cart or a container on the conveyance cart up to a position of the height of work by a cart lifter to load the container, further lifting it up to a container hold position to hold the container by a container holder, then lowering it, and repeating the above procedures. CONSTITUTION:A conveyance cart 1 is lifted by a cart lifter 2 and set to the height H1 of work. Here, a container 3 is loaded on the conveyance cart 1. Then, the conveyance cart 1 on which the container 3 is loaded is lifted up to a position H2 of a container holder 4 by the cart lifter 2. Next, the container holder 4 is operated to support the container 3 by the container holder 4. The cart lifter 2 which supports the container 3 in succession to the container holder 4 is returned to the work position H1 in the empty condition to repeat the same procedures.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container container stacking method and apparatus for stacking container containers such as boxes through a carrier truck.

[0002]

2. Description of the Related Art For example, in a food manufacturing factory for noodles,
In the process of containing and transporting products such as noodles in a plastic container container used as a container box,
There is a work for stacking container containers containing products on a carrier truck. Conventionally, in this work, a worker holds the container containers by hand and sequentially stacks the containers on a carrier truck to stack the containers up to a predetermined height.

[0003]

However, at the start of the above-mentioned stacking work, it is necessary to bend over to work the container containers on the low mounting surface of the carrier truck, and the work height of a predetermined height is required. Although the work becomes easier when approaching the position, as the work further progresses, it is necessary to lift the container containers much higher than the waist height and stack the containers, which poses a problem that the worker is considerably heavy labor.

In view of the above conventional problems, the present invention provides a container container stacking method capable of stacking container containers at a required height on a carrier by only working at a predetermined working height position. The purpose is to propose the device.

[0005]

In order to achieve the above-mentioned object, in the invention according to claim 1, if reference numerals are attached in the drawings, as shown in FIGS. 6 to 8, Carrier 1
Alternatively, the process of lifting the container container 3 on the carrier truck to the working height position H1 by the carrier lifter 2 and placing the container container 3 on the carrier truck 1 or the container container 3 on the carrier truck at the working height position H1, and the carrier truck 1 or a step of lifting the container container 3 on the carrier truck 1 to a container holding position H2 further above the working height position H1 and holding only the container container 3 by the container holder 4 at the container holding position H2; 1 or the step of lowering the container container 3 on the carrier vehicle 1 to the working height position H1 and placing the next container container 3 on the container carrier 3 on the carrier vehicle 1 or the carrier vehicle, and repeating these steps. The container container stacking method of stacking a plurality of container containers 3 on the carrier 1 is adopted. In the present invention, the container holding position H2 means
It is possible to insert at least one container container 3 from between the container holder 4 held at the container holding position H2 and the carrier vehicle 1 or the container container 3 on the carrier vehicle at the working height position H1 below the container holder 4. It means the possible position,
Of course, it may be located above it.

Further, in the invention according to claim 2, FIG.
As shown in FIG. 3, the carrier truck 1 is lifted to the working height position H1 by the carriage lifter 2, and then the container container 3 is placed on the carrier truck 1 at this working height position H1 to move the carrier truck 1 from the working height position H1. Container holding position H2 further above
To container container 3 at this container holding position H2
With only the container holder 4 held, the carrier 1
To the original working height position H1 and the next container container 3 is placed on the transport carriage 1, and again the transport carriage 1 is lifted from its working height position H1 to the container holding position H2 to move the container container 3 to the container holder 4 The carrier vehicle 1 is repeatedly moved up and down between the working height position H1 and the container holding position H2 until the required number of container containers 3 are stacked and held on the container holding position H2, The process of stacking the container containers 3 on the carrier cart 1 by sequentially lowering the carrier cart 1 by the height h1 of the container container 3 with the container container 3 placed on the carrier cart 1 at the working height position H1 Dolly 1
Repeatedly reaches until the floor surface G or its vicinity is reached, and finally the carrier vehicle 1 on which the container containers 3 are stacked is temporarily lifted and stacked on the container holding position H2.
The container container stacking method is characterized in that the carrier cars 1 are lowered to the floor surface G in a state in which the carrier cars 1 are placed on the container containers 3 stacked on the carrier car 1. In the present invention, the height h1 of the container container 3 does not strictly mean the height of the container container 3, but may be any height close to it.

In the invention according to claim 3, FIG.
As shown in FIG. 1, the carrier vehicle 1 is lifted to the working height position H1, the container container 3 is placed on the carrier vehicle 1, and then the carrier vehicle 1 is sequentially lowered by the height h1 of the container container 3 and the container container 3 is placed thereon. The process of stacking 3 is sequentially repeated until the transport carriage 1 reaches the floor surface G or its vicinity, and then the transport carriage 1 on which the container containers 3 are stacked as described above is temporarily lifted to the container holding position H2. Then, all the container containers 3 stacked on the transport carriage 1 are held by the container holder 4 at the container holding position H2, and then only the transport carriage 1 is lowered to the working height position H1 and the next working height position H1 is reached. Of the container container 3 is placed on the carrier vehicle 1, and then the carrier vehicle 1 is sequentially lowered by the height h1 of the container container 3 with the container container 3 placed thereon.
The operation of stacking the sheets on the transport carriage 1 is performed by the transport carriage 1 on the floor surface G.
Or, it is repeated until it reaches the vicinity thereof, and finally the carrier truck 1 on which the container containers 3 are stacked is temporarily lifted up and the container containers 3 stacked and held on the container holding position H2 are placed on the container containers 3 on the carrier truck 1. The container container stacking method is characterized in that the transport carriage 1 is lowered to the floor surface G in the mounted state.

Further, in the invention according to claim 4, FIG.
As shown in FIG. 1, the carrier vehicle 1 is lifted to the working height position H1, the container container 3 is placed on the carrier vehicle 1, and then the carrier vehicle 1 is sequentially lowered by the height h1 of the container container 3 and the container container 3 is placed thereon. The operation of stacking 3 is sequentially repeated until the carrier truck 1 reaches the floor surface G or its vicinity, and then the carrier truck 1 on which the container containers 3 are stacked as described above is placed in the uppermost container container. 3 until the container holding position H2 is reached, and the uppermost container container 3 facing the container holding position H2 is moved to the container holder 4
Then, the carrier 1 is lowered until the next container container 3 faces the working height position H1, and the next container container 3 is placed on the next container container 3 at this working height position H1. Then, the carrier vehicle 1 is lifted again until the container container 3 on which the carrier vehicle 1 is mounted faces the container holding position H2, and the container container 3 is held by the container holder 4, thus elevating the carrier vehicle 1 in the required number of container containers 3 Are repeatedly stacked and held on the container holding position H2, and finally, the carrier truck 1 on which the container containers 3 are stacked is temporarily lifted and the container containers 3 stacked and held on the container holding position H2 are placed on the carrier truck 1. It is also possible to adopt a container container stacking method characterized in that the carrier vehicle 1 is lowered to the floor surface G while being placed on the container container 3.

Further, in the invention according to claim 5, as shown mainly in FIGS. 1 to 3, the carrier truck 1 is moved from the floor surface G to the container holding position H2 above the working height position H1. Adopting a container container stacking device characterized by comprising a dolly lifter 2 for holding up and down and a container holder 4 for detachably holding a container container 3 lifted by a transporting trolley 1 at a container holding position H2. There is something to do.

According to the sixth aspect of the present invention, the carriage lifter 2 includes an elevating body 7 which is elevated and lowered by the elevating and lowering drive means 6, and a holding arm 8 pivotally attached to the elevating and lowering body 7 so as to be swingable. The holding holder 8 comprises a pair of engaging claws 9 fixedly attached to the tip of the holding arm 8 and releasably engaged with the side surface of the carrier 1. The container holder 4 is pivotally mounted at a container holding position H2 so as to be swingable. 6. A holding arm 10 and a pair of engaging claws 11 fixed to the tip of the holding arm 10 and releasably engaged with the side surface of the container 3.
The described container stacking device is adopted.

In the invention according to claim 7, the holding arms 8 and 10 of the truck lifter 2 and the container holder 4 are provided with regulating means 12 and 13 for regulating the swing drive range. The container container stacking device according to claim 6 is adopted.

[0012]

According to the first aspect of the invention, which can be said in common with the stacking method shown in FIGS. 6 to 8, the container container is placed on the carrier 1 at the work height position H1 where the work is easy. Three
Can be stacked.

Further, it is sufficient to drive only the carrier truck 1 up and down by the truck lifter 2 to hold the container container 3 at a fixed position at the container holding position H2, and the elevator drive means need only be provided for the carrier truck 1. become.

According to the second aspect of the present invention, as shown in FIG. 6, the transport vehicle 1 that exerts the operation described in the first aspect of the invention and that drives the container container 3 up and down to move up and down.
In most of the processes, the driving force is the highest, and only one container container 3 is lifted at the time of ascending. Therefore, the ascending driving force is minimal, and it does not rise in a high stacked state. Stable and container container 3 stacked on carrier 1 at the last stage
As a result, it is possible to stack the container containers 3 on the transport carriage 1 in a stable manner with a small driving force for raising the container.

According to the third aspect of the present invention, as shown in FIG. 7, the same effects as those of the first aspect of the invention are exhibited, and in most of the steps, the transport vehicle 1 is lowered while being lowered. 1, container containers 3 are loaded on the container container 1. The container containers 3 stacked in the middle of the process are driven to rise so that these container containers 3 are held at the container holding position H2.
Since it is held in the container holder 4 by the above, the ascending driving force of the carrier truck 1 can be minimized and the container containers 3 can be stably stacked on the carrier truck 1.

According to the invention of claim 4, as shown in FIG. 8, the same effects as those of the invention of claim 1 are exhibited, and in most of the steps, the carriage 1 is lowered while being lowered. 1, the container container 3 is loaded on the container container 1. Also, since the stroke when the container container 3 is lifted in a stacked state is small, the driving force for raising the container container is small, and the container container 3 is stable. Can be loaded on the carrier 1.

Further, according to the invention of claim 5, the container container 3 can be always loaded on the transport carriage 1 at the working height position H1, so that the loading operation is easy and because of this work. Of the transport carriage 1 and the container holder 4, only the transport carriage 1 is driven to move up and down. Therefore, the lifting drive means may be provided only in the transport carriage 1 and the structure is simple.

Further, according to the sixth aspect of the present invention, by the swing drive of the holding arms 8 and 10 and the engaging claws 9 and 11 provided on the truck lifter 2 and the container holder 4, respectively, the carrier truck 1 and the container container 3 are moved. Is structured so that it can be engaged with and disengaged from each of the engaging claws 9 and 11, and the structure thereof is simple. Therefore, it is possible to drive up and down stably.

Further, in the invention according to claim 7, the carrier truck 1 and the container container 3 are driven by swinging the holding arms 8 and 10 and the engaging claws 9 and 11 provided on the truck lifter 2 and the container holder 4, respectively. And engaging claws 9, 11
Since the holding arms 8 and 10 are provided with restricting means 12 and 13 for restricting the swing drive range when the engaging arms are detachably engaged and held, the engaging claws 9 for the carriage lifter 2 and the container holder 4 are provided. The engagement and disengagement positions of 11 and 11 can be freely adjusted.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A container stacking apparatus according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the same, FIG. 2 is a plan view and FIG. 3 is a side view.

On the floor surface G, pillars 1 are provided upright in the front, rear, left and right directions.
The transport carriage 1 is carried in and out between the left and right sides of the carriage 4, and the container container 3 is placed on the carriage 1.

As shown in FIG. 1, the height from the floor surface G to the position where the operator can easily work or the loading position of the container 3 is the working height position H1, and the position above it is the container holding position. H2, a carriage lifter for moving the carriage 1 and the container container 3 placed on the pillar 14 to the working height position H1, and for moving the carriage 1 up and down to the container holding position H2 via the working height position H1. 2 is provided, and the container holder 4 holds the container container 3 lifted to the container holding position H2 at that position.
Is provided.

The dolly lifter 2 has the following structure. That is, an elevating body 7 supported so as to be lifted and lowered by a plurality of pairs of guide rollers 16 rolling while sandwiching guide rails 15 extending from the vicinity of the lower end to the upper part on the front and rear facing surfaces of each column 14. The lifting / lowering body 7 is configured to be lifted / lowered by a lifting / lowering drive means 6. A holding arm 8 is pivotally mounted on the lifting body 7 by a pivot 17 so that the lifting arm 7 can swing freely, and locking pawls 9 for engaging and holding both side edges of the carriage 1 are fixed to the lower end of the holding arm 8. There is.
Further, a cylinder device 18 is interposed between the pair of left and right holding arms 8, and the pair of left and right holding arms 8 are swing-driven by the cylinder device 18 so as to approach or separate from each other to lock the left and right pair of left and right ends. The pawl 9 is adapted to engage and disengage the transport carriage 1 in a detachable manner.

The elevating and lowering drive means 6 is provided with a speed reducer 19 having an input shaft facing inward in the left and right facing directions and an output shaft facing forward, above the pair of left and right supporting columns 14 at the rear. One end of the rotary shaft 20 is connected to the output shaft, and the other end is rotatably supported by a bearing bracket 21 projecting from the upper part of each of the columns 14 in the front part. Thus, the sprocket 22 is fixed, and one end of the chain 23 meshed with the sprocket 22 is connected to the lifting body 7, and the other end is connected to the balance weight 24. The input shaft of the speed reducer 19 is connected to the drive shaft 25, and the drive shaft 25 and the drive motor 26 are interlockingly connected to the transmission sprocket and the transmission chain 27.

In the container holder 4 provided at the container holding position H2, the holding arm 10 is pivotally attached to the bearing brackets 28 projecting from the right and left facing surfaces of the columns 14 via a rotatable pivot shaft 29, and this holding is carried out. Engaging claws 11 that engage and hold the flange portions on both sides of the container container 2 are fixed to the lower end portion of the arm 10. A cylinder device 30 is interposed between the pair of left and right holding arms 10, and the pair of left and right holding arms 10 is swing-driven by the cylinder device 30 so as to approach or separate from each other, and a pair of left and right engaging arms at the lower end portions thereof. The container claw 3 is releasably engaged with the fitting claw 11.

The restriction means 1 provided on the holding arms 8 and 10 of the truck lifter 2 and the container holder 4, respectively.
2 and 13 have the following configurations.

That is, the restricting means 12 provided on the holding arm 8 of the dolly lifter 2 extends between the elevating bodies 7 and 7 provided on the front and rear columns 14 and 14 so as to be vertically movable as shown in FIG. Restriction plates 3 on the top and bottom of the left and right outer surfaces
1, 32 are fixed to each other, and a stopper bolt 33 is screwed onto an upper side regulation plate 31 so that the stopper bolt 33 can be retracted and retracted, and a swing of a holding arm 8 swinging in a left-right direction between the front and rear lifting bodies 7, 7. The range of motion is regulated by the holding arm 8 coming into contact with the stopper bolt 33 on the upper side and the regulating plate 32 on the lower side. That is, the swing range of the holding arm 8 in the releasing direction (retracting direction) is regulated by the stopper bolt 33, and the swing range of the holding arm 8 in the engaging direction (projecting direction) is the regulating plate 3.
It will be regulated by 2.

Further, the regulating means 13 provided on the holding arm 10 of the container holder 4 is integrated with a pivot 29 rotatably provided for pivotally attaching the holding arm 10 to the bearing bracket 28, as shown in FIG. Axis 2 to rotate
The rocking plate 34 is fixed to the side surface of the rocking plate 34.
A rocking plate 3 which has stopper bolts 35 and 36 screwed into the upper and lower parts thereof so as to be capable of retracting, and rocks in synchronization with the swing motion of the holding arm 10 which swings around a pivot 29.
The swing range of the holding arm 10 is regulated by the abutment of 4 on the side surface of the column 14. That is, the swing range of the holding arm 10 in the releasing direction (retracting direction) is regulated by the lower stopper bolt 36, and the swing range of the holding arm 10 in the engaging direction (projecting direction) is regulated by the upper stopper bolt 35. It is like this.

As described above, by the regulating means 12 and 13 provided on the holding arms 8 and 10 of the truck lifter 2 and the container holder 4, respectively, the carrier truck 1 or the container container 3 held by these is adjusted to the size thereof. It can be adjusted so that it is always brought to the center between the columns 14 and 14.

Next, a stacking method for sequentially loading the container containers 3 on the carrier vehicle 1 will be described.

First, the method shown in FIG. 6 will be described.
As shown in (a), as shown by an arrow, the carriage 1 carried by the floor G between the columns 14 and 14 is lifted to the working height position H1 by the carriage lifter 2 as shown by an arrow, and this work is performed. At the height position H1, the worker places the container container 3 containing the product on the carrier 1. The working height position H1 is about the waist height at which the worker can easily work, but the container container 3 may be horizontally transported at this position and placed on the transport carriage 1.

Next, as shown in (b), the carriage 1 is lifted to a container holding position H2 which is further above the working height position H1, and the container container 3 is held by the container holder 4 at this container holding position H2.

Next, as shown in (c), the carriage 1 is lowered to the original working height position H1, whereby the container holding position H is reached.
2 creates a gap 5 between the container container 3 held at 2 and the carriage 1 held at the working height position H1. Put.

Next, as shown in (d), the carrier vehicle 1 is lifted from its working height position H1 to the container holding position H2 and the container container 3 already held in the container holder 4 is lifted. The container container 3 is held by the container holder 4. At this time, the next container 3
When the carrier truck 1 on which is mounted rises to the container holding position H2, the operation of raising the bottom of the container container 3 held by the container holder 4 above it to the container holding position H2 at once is not performed, and the container holder is temporarily held. The container container 3 held by the container container 3 is lightly pushed up a little, and the locking claw 9 of the container holder 4 holding the container container 3 is pushed.
It is preferable to disengage from the container and then raise to the container holding position H2. Through this operation, it is possible to favorably separate the locking claw 9 of the container holder 4 from the container container 3 and the timing of the separation.

Next, as shown in (e), the carriage 1 is lowered by the carriage lifter 2 to the original working height position H1. At the container holding position H2, two container containers 3 are held by a container holder 4. Then, at this working height position H1, the container container 3 is further placed on the carrier 1 as shown by the broken line, and the operation (d) is repeated.

In this way, the transport carriage 1 is repeatedly moved up and down between the working height position H1 and the container holding position H2 until the required number of container containers 3 are stacked and held on the container holding position H2.

Next, as shown in (f), when the required number of container containers 3 are held by the container holder 4 at the container holding position H2 in the previous step, the container containers 3 descend from the container holding position H2 to the working height position H1. The next container container 3 is placed on the carrier 1.

Then, as shown in (g), the carrier vehicle 1 is lowered by the height h1 of the container containers 3 in sequence to stack a number of container containers 3, and the carrier vehicle 1 reaches the floor surface G or its vicinity. Repeat until you do.

When the carriage 1 reaches the floor surface G,
As shown in (h), the carrier vehicle 1 on which the container containers 3 are stacked is once lifted as indicated by an arrow to move the container holding position H2.
The container containers 3 stacked and held above are placed on the container containers 3 stacked on the carrier 1 and the container holder 4 is released. Finally, the carrier truck 1 in which all the container containers 3 are stacked is lowered to the floor surface G as shown by the broken line, the truck lifter 2 is released, and the carrier trucks 1 stacked in the container container 3 are supported by the pillars 14, It will be carried out from between 14.

As described above, according to the stacking method shown in FIG. 6, the container containers 3 can be stacked on the carrier 1 at the working height position H1.

The stacking method shown in FIG. 7 will be described below.
As shown in (a), the carriage 1 indicated by a broken line is lifted to a working height position H1 by a carriage lifter 2 as indicated by an arrow, and at this working height position H1, the worker carries the carriage 1
The container container 3 containing the product is placed on.

Next, as shown in (b), the container 3
Then, the carrier vehicle 1 is lowered by the height h1 and the next container container 3 is stacked on the container container 3 placed on the carrier vehicle 1 in the step (a).

As shown in (c), the operation of lowering the carriage 1 by the height h1 of the container 3 is sequentially repeated until the carriage 1 reaches the floor surface G or its vicinity.

Next, as shown in (d), the carrier vehicle 1 on which the container containers 3 are stacked in the previous step is temporarily lifted to the container holding position H2, and at the container holding position H2, the lowermost container container 3 is held. Hold at 4. As a result, a large number of stacked container containers 3 are held at the container holding position H2.

In this state, as shown in (e), the carriage 1
Only lowers to working height position H1. As a result, a gap 5 is generated between the container containers 3 stacked and held at the container holding position H2 and the transport carriage 1 held at the working height position H1, and the next container container 3 is transported through this gap 5. Place on trolley 1.

Then, as shown in (f), the container 3
With the carrier mounted, place the carrier 1 by the height of the container container 3 h
The operation of gradually lowering by 1 and stacking the container containers 3 on the transport carriage 1 as shown in (g) is repeated until the transport carriage 1 reaches the floor surface G or its vicinity, and as shown in (h). The carrier truck 1 on which the container containers 3 are stacked is once lifted, and the container holder 4 is released with the container containers 3 stacked and held on the container holding position H2 placed on the container containers 3 on the carrier truck 1. The carrier vehicle 1 is lowered to the floor G as shown by the broken line, the carrier lifter 2 is released, and the carrier vehicle 1 in which a large number of container containers 3 are stacked is carried out.

As described above, also by the stacking method shown in FIG. 7, the container containers 3 can always be stacked on the carrier 1 at the working height position H1.

The stacking method shown in FIG. 8 will be described below.
As shown in (a), the carriage 1 indicated by a broken line is lifted to a working height position H1 by a carriage lifter 2 as indicated by an arrow, and at this working height position H1, the worker carries the carriage 1
The container container 3 containing the product is placed on.

Next, as shown in (b), the container 3
Then, the carrier vehicle 1 is lowered by the height h1 and the next container container 3 is stacked on the container container 3 placed on the carrier vehicle 1 in the step (a).

As shown in (c), the operation of lowering the carriage 1 by the height h1 of the container container 3 is sequentially repeated until the carriage 1 reaches the floor surface G or its vicinity.

Then, as shown in (d), the carrier vehicle 1 on which the container containers 3 are stacked in the previous step is lifted until the container container 3 at the uppermost stage faces the container holding position H2. The uppermost container container 3 facing H2 is held by the container holder 4.

Next, as shown in (e), the carriage 1 is lowered until the container container 3 at the next stage faces the working height position H1, whereby the uppermost container held at the container holding position H2. Since a gap 5 is generated between the container 3 and the container container 3 held at the working height position H1, the container container 3 shown by the broken line is placed on the container container 3 in the next stage from this gap 5.

Then, as shown in (f), the carrier truck 1 is lifted until the container container 3 on which it is placed faces the container holding position H2, and the container container 3 already held by the container holder 4 is lifted. Next, the container container 3 is held by the container holder 4. At this time, the carrier truck 1 on which the next container container 3 is placed is moved to the container holding position H2.
When the container container 3 held by the container holder 4 is lifted up to the container holding position H2 by pushing up the bottom of the container container 3 held by the container holder 4 above it at once, the container container 3 once held by the container holder 4 is slightly lightened. It is preferable that the engaging claw 9 of the container holder 4 holding the container container 3 is pushed up by only the above to disengage from the container container 3 and then raised to the container holding position H2 as described in the embodiment shown in FIG. As I did.

As shown in (g), however, the step (f) is repeated until the transport carriage 1 is lifted and lowered until the required number of container containers 3 are stacked and held on the container holding position H2.

Then, as shown in (h), the container 3
The carrier 1 with the stacks of
In the state where the container containers 3 stacked and held on 2 are placed on the container containers 3 on the transport carriage 1, the container holder 4 is released, and the transport carriage 1 is lowered to the floor surface G as shown by the broken line, and the carriage lifter 2 Then, the carrier vehicles 1 in which a large number of container containers 3 are stacked are unloaded.

As described above, also by the stacking method shown in FIG. 8, the container containers 3 can be stacked on the carrier 1 at the working height position H1.

[0057]

According to the first aspect of the present invention, since the container containers can be stacked on the carrier truck at a predetermined position such as a work height position where the work can be easily performed, the worker can work on the floor surface. Compared to loading container containers directly on the carrier truck, the work is easier and easier, and the loading position does not change when the container containers are loaded and loaded on the carrier truck by a conveyor. Therefore, loading work can be performed efficiently.

Further, since it is sufficient to drive only the carrier truck up and down by the truck lifter and hold the container container in the fixed position at the container holding position, the operator can easily operate.

According to the second aspect of the present invention, in addition to exhibiting the effect described in the first aspect of the invention, the carrier truck for loading and unloading the container container has the highest driving force in most steps. Since only one container container is lifted at the time of ascent, the driving force for raising it is minimal, and it is stable because it does not rise in a state of being stacked high. Since it is only necessary to raise the stacked container containers by a small amount, it is possible to stably stack the container containers on the transport carriage with a small lifting drive force.

According to the third aspect of the invention, the same effect as that of the first aspect of the invention is exhibited, and in most of the steps, the container truck is lowered and the container containers are loaded on the carrier truck. Since the container containers stacked in the middle of the process are lifted and held in the container holder at the container holding position, the lifting drive force of the carrier is It is possible to stack container containers on the transport carriage with minimum and good stability.

According to the invention of claim 4, the same effect as that of the invention of claim 1 is exhibited, and in most of the steps, the container truck is lowered and the container containers are loaded on the carrier truck. Also, because there are few strokes when rising with container containers stacked,
As a result, the driving force for raising is small, and the container containers can be stably loaded on the carrier truck.

According to the fifth aspect of the present invention, since the container containers can be always loaded on the carrier truck at the working height position, the loading operation is easy, and the carrier truck for this work can be used. Among the container holders, only the carriage is driven to move up and down. Therefore, the lifting drive means may be provided only on the carriage and the structure is simple.

According to the sixth aspect of the present invention, the carrier truck and the container can be engaged with and disengaged from the engaging claws by swinging the holding arms and the engaging claws provided on the truck lifter and the container holder, respectively. Since it is configured to be engaged and held, its structure is simple. Among them, the dolly lifter is lifted and lowered by the lifting and lowering body that is lifted and lowered by the lifting and lowering drive means, so that it can be stably lifted and lowered.

Further, in the invention according to claim 7, the carrier truck and the container can be engaged with and disengaged from the engaging claws by swinging the holding arms and the engaging claws respectively provided on the truck lifter and the container holder. Since the holding arm is provided with the regulating means for regulating the swing drive range when engaging and holding the engaging arm, it is possible to freely adjust the engagement / disengagement position of each engaging claw with respect to the carriage lifter and the container holder. Therefore, the carrier truck or container container held by the truck lifter or container holder can always be held at an accurate position and stable stacking operation can be performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a container container stacking device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a right side view of FIG.

FIG. 4 is a front view showing a truck lifter that is a main part of the embodiment.

FIG. 5 is a front view showing a container holder which is a main part of the embodiment.

FIG. 6 is a diagram showing working steps of the container container stacking method according to the present invention.

FIG. 7 is a diagram showing another working step of the container container stacking method according to the present invention.

FIG. 8 is a diagram showing still another working process of the container container stacking method according to the present invention.

[Explanation of symbols]

 1 Transport Cart 2 Cart Lifter H1 Working Height Position 3 Container Container H2 Container Holding Position 4 Container Holder 5 Gap G Floor 6 Lifting Drive Means 7 Lifting Body 8 Holding Arm 9 Locking Claw 10 Holding Arm 11 Engaging Claw 12 Restricting Means 13 Restriction Means 14 Supports

Claims (7)

[Claims] 1. A carrier truck or a container container on the carrier truck is lifted to a working height position by a truck lifter,
A step of placing the container container on the carrier car or a container container on the carrier car at the working height position, and raising the container carrier or the container container on the carrier carrier to a container holding position further above the working height position, The process of holding only the container container with the container holder at the holding position, and the process of lowering the carrier car or the container container on the carrier car to the working height position and placing the next container container on the carrier car or the container container on the carrier car The method for stacking container containers comprises stacking a plurality of container containers on a carrier by repeating these steps. 2. A carrier truck is lifted by a truck lifter to a working height position, and then a container container is placed on the carrier truck at this working height position to lift the carrier truck to a container holding position further above the working height position. , With only the container container held by the container holder at this container holding position, lower the carrier truck to the original working height position, place the next container container on the carrier truck, and move the carrier truck from the working height position. The container truck is lifted to the container holding position to hold the container container in the container holder, and the transport carriage is moved between the working height position and the container holding position until the required number of container containers are stacked and held on the container holding position. Repeatedly ascending and descending, and then, with the container container placed on the carrier car at the working height position, lower the carrier car by the height of the container container and transfer the container container. The process of stacking on the trolley is repeated until the transport trolley reaches the floor surface or its vicinity, and finally the transport trolley on which the container containers are stacked is temporarily lifted and the container containers stacked on the container holding position are transported by the transport trolley. A method of stacking container containers, characterized in that the carrier truck is lowered to the floor while being placed on the container containers stacked in the. 3. A step of raising a carrier truck to a working height position to place a container container on the carrier truck, then sequentially lowering the carrier truck by the height of the container container and stacking the container containers on top of it Are sequentially repeated until the container reaches the floor surface or its vicinity, and then the carrier truck on which the container containers are stacked as described above is temporarily lifted to the container holding position and all container containers stacked on the carrier truck are containerized. Hold it with the container holder at the holding position, then lower only the carrier to the working height position, place the next container container on the carrier at this working height position, and in this state, move the carrier container to the height of the container container. The operation of stacking container containers on the transfer cart by sequentially lowering them is repeated until the transfer cart reaches the floor surface or its vicinity, and finally the transfer table on which container containers are stacked. A container container stacking method, characterized in that a vehicle is lifted once and the container containers that are stacked and held on a container holding position are placed on the container container on the carrier car and the carrier car is lowered to the floor. 4. An operation of lifting a carrier truck to a working height position, placing a container container on the carrier truck, then sequentially lowering the carrier truck by the height of the container container and stacking the container containers on top of it. Are sequentially repeated until the container reaches the floor surface or its vicinity, and then the carrier truck on which the container containers are stacked as described above is lifted until the uppermost container container faces the container holding position. Hold the topmost container container facing the position with the container holder, and then lower the carrier until the next container container faces the working height position, and then move the next container container at this working height position. Place it on the corrugated container
Once again, the carrier truck is lifted until the container container on which it is placed faces the container holding position to hold the container container in the container holder. Repeat until it is held, and finally lift up the carrier truck that stacks the container containers, and place the container containers that are stacked and held on the container holding position on the container container on the carrier truck and place the carrier carrier on the floor. Container container stacking method characterized by lowering to 5. A dolly lifter for holding a carrier truck up and down from a floor surface to a container holding position above a working height position, and a container container lifted by the carrier carriage detachably held at the container holding position. Container container stacking device, comprising: 6. A dolly lifter includes a lifting body that is lifted and lowered by lifting and lowering drive means, a holding arm pivotally mounted to the lifting body so as to be swing-driving, and a side surface of the carriage that is fixed to a tip end portion of the holding arm. The container holder is composed of a pair of engaging claws that are engaged with each other in a detachable manner. The container container stacking device according to claim 5, comprising a pair of engaging claws that engage with each other in a disengageable manner. 7. The container container stacking apparatus according to claim 6, wherein each of the holding arms of the dolly lifter and the container holder is provided with restriction means for restricting a swing drive range.