JP2004149136A - Loading apparatus and container with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a floor plate from being pushed to prevent it from warping in a loading apparatus for unloading or loading equipped with the floor plate which can be moved fore and aft by cylinders on the base, and equipped on the floor plate with a movable bulkhead wherein only the floor plate moves when locked and the bulkhead moves together with the floor plate when moving. <P>SOLUTION: The loading apparatus for unloading or loading provided in a box 10 is constituted of the floor plate 13 which can move fore and aft by the cylinders on the base, and the movable bulkhead 12 provided on the floor plate 13 wherein only the floor plate 13 moves when locked and the bulkhead 12 moves together with the floor plate 13 when moving. The cylinders 15a, 15b, 15c and 15d are provided on the front and the rear of the floor plate 13. All of the front and rear cylinders are driven in the same direction, or the front and rear cylinders are driven in the reverse directions. Thus only the cylinders on the side of drawing out the floor plate are driven. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to, for example, a logistics using a container, in which a container is loaded without gaps without a pallet in the container without major modification of the container and without providing a large device outside or in the container. The unloading or loading operation can be mechanized, eliminating the heavy labor of manual unloading, which can lead to the unloading of containers, the aging of loading workers, and the improvement of work efficiency. The present invention relates to a cargo handling device and a container with a cargo handling device.
[0002]
[Prior art]
2. Description of the Related Art In recent years, container transportation has been increasing in terms of reducing transportation costs and packaging costs, shortening transportation periods, preventing cargo pain, and the like. However, since the containers are box-shaped and most of the containers have a single entrance at the rear end, a crane or the like cannot be used for loading and unloading the load. In addition, in order to increase the loading efficiency and prevent the load from collapsing, the loads are piled up without any gaps in a bulk state without being loaded on a pallet. For this reason, conveyors and forklifts can be used for transferring and transporting the load, but the load is relied on manually.
[0003]
The unloading work of the container requires the work of transporting the load inside the container to the outside of the container.However, loose objects such as chips often require manual work, which is heavy work, which is not preferable in terms of work safety. . In particular, with the aging of workers in recent years, there is a need for a cargo-handling device that eliminates the work of lower back pain as a countermeasure for lower back pain. Conventionally, there is a crane that meets this condition, but the container is not used because of the drawbacks that it is difficult to mount and the working speed is slow.
[0004]
The inventor has previously filed the following application as a container with a cargo handling device for loading / unloading or loading.
[0005]
[Patent Document 1]
Japanese Patent Application No. 2000-307713 (Japanese Patent Application Laid-Open No. 2002-114290)
[0006]
As shown in FIG. 12, a movable partition 12 that moves in the front-rear direction as a load discharge device in a box 10 that is a container outer shell, or in addition to this, can be moved back and forth that is laid below the movable partition 12 The floor plate 13 is provided.
[0007]
In the Patent Document 1, the movable partition 12 is placed only on the support plate 12a in contact with the floor plate 13, and a multistage telescopic cylinder 14 is provided between the box 10 and the telescopic cylinder 14. , Which makes it possible to move back and forth. On the other hand, a cylinder 15 that reciprocates is provided between the floor plate 13 and the box 10 so that the cylinder 15 can move the floor plate 13 in the front-rear direction.
[0008]
The floor plate 13 is moved in the front-rear direction by the cylinder 15, and as a first stage, when the floor plate 13 moves in the direction of the rear end opening 11 (forward direction), the load on the floor plate 13 also moves so as to be carried by this. Further, the telescopic cylinder 14 is extended to move the movable partition 12 in the direction of the rear end opening 11 (forward direction) in synchronization with the floor plate 13.
[0009]
Next, as a second stage, the movable partition 12 is fixed by fixing the telescopic cylinder 14 to stop the load at that position, and only the floor plate 13 is moved by the cylinder 15 in the counter load discharge direction (return direction). Hereinafter, the first step and the second step are sequentially repeated to move the movable partition 12 and the load to the rear end port 11 and discharge the load from the rear end port 11 to the outside of the container.
[0010]
As shown in FIG. 13, fixing means 16 for fixing the movable partition 12 to the box 10 is provided on a side plate of the box 10 instead of the telescopic cylinder 14. A pendulum-type or seesaw-type lock bar 17b that hooks on the locking projection 17a may be provided.
[0011]
As described above, the container is provided with the cargo handling device, and it is possible to mechanize the unloading operation of the load, such as loose objects such as chips, loaded without any pallet in the container without any gap. The container has a movable bulkhead that moves in the front-rear direction as a load discharging device or a loading device in the outer shell box, and in the case of discharging the load, chips and other loads are moved in the direction of the load discharge port by this movable partition. It can be moved and discharged out of the container.In the case of loading, the load is sent to the back side by this movable bulkhead, and the gap is opened without major modification of the container and without pallet inside the container without installing large scale equipment outside. It is possible to mechanize the unloading or loading of the loaded load without any trouble.
[0012]
[Problems to be solved by the invention]
Although a steel plate or the like is used for the floor plate 13, it is preferable that the floor plate 13 be formed relatively thin in order to reduce the weight. However, if it is thin, it is easy to bend, and in particular, the portion where the load and the movable partition 12 are located is pressed down by excessive load, but conversely, the vicinity thereof may be turned up into a mountain shape, leading to buckling and deformation.
[0013]
An object of the present invention is to solve the above-mentioned disadvantages of the conventional example, and arrange a floor plate which can be moved back and forth by a cylinder at the bottom as a loading / unloading device provided in a box body, and on this floor plate, at the time of locking. It is an object of the present invention to provide a cargo handling apparatus having a movable partition in which only a floor board moves and which moves together with the floor board at the time of movement, and a container provided with the cargo handling apparatus and a container provided with the cargo handling apparatus capable of preventing deflection by preventing the floor board from being pushed. is there.
[0014]
[Means for Solving the Problems]
According to the present invention, in order to achieve the above object, the cylinders are arranged at the front and rear of the floorboard, and these front and rear cylinders drive all cylinders in the same direction, or these front and rear cylinders The gist of the invention is that the driving direction is reversed, only the cylinder on the side from which the floorboard is drawn out is driven, and the cargo handling device according to claim 1 or 2 is installed in the container.
[0015]
According to the first and third aspects of the present invention, in order to unload a load such as chips placed on a floor plate in a container box, a transfer step of moving the bulkhead and the load together with the floor plate, The relative position between the movable bulkhead, the cargo, and the floorboard is changed by sequentially repeating a stop step of retracting the floorboard while locking the movable bulkhead to prevent the cargo from retreating, and the box body is sequentially arranged from the rear cargo. To the outside.
[0016]
The front and rear cylinders are responsible for the movement of the floorboard, which can be moved back and forth, and the deflection is moved by pulling the floorboard by either the front or rear cylinder extending it. By doing so, it is possible to prevent the floor plate from being pressed, and it is possible to sufficiently transmit the extension tension of the cylinder to the floor plate without causing deflection.
[0017]
According to the second aspect of the present invention, the operation of the first aspect of the present invention is substantially the same as that of the first aspect of the invention, except that the front and rear cylinders have opposite directions of expansion and contraction, and the cylinder on the side from which the floorboard is drawn is moved forward and backward. By properly using them, the deflection of the floorboard can be prevented.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical sectional side view showing a first embodiment of a container provided with a cargo handling device as a cargo handling device and a container with the cargo handling device according to the present invention, FIG. 2 is a rear view of the same, and FIG. And the rear end is a rear end opening 11.
[0019]
In the present invention, similarly to the above-described conventional example, a movable partition 12 that moves in the front-rear direction is provided in the box 10 as a load discharging device or a loading device. (Slide plate) 13 was laid.
[0020]
The movable partition 12 is made of steel, and is arranged in a direction parallel to the surface of the rear end opening 11 assuming that the box 10 is a rectangular parallelepiped. Further, the movable partition wall 12 has an inclined surface 12c whose lower portion projects more forward on the side facing the rear end opening 11. The floor plate 13 is also made of steel or stainless steel, and may be relatively thin.
[0021]
The movable partition wall 12 is placed only on the lower surface of the floor plate 13 so as to be in contact therewith. On the other hand, a reciprocating cylinder is provided between the floor plate 13 and the box 10.
[0022]
In the present invention, the cylinders are cylinders 15a and 15b disposed on the left and right of the rear portion of the floor plate 13 and cylinders 15c and 15d disposed on the left and right of the front portion. These cylinders 15a, 15b, 15c and 15d are disposed on the rear and front portions. Drive all in the same direction.
[0023]
FIG. 3 is a hydraulic circuit diagram in which oil from a pump 26 driven by the engine 23 is evenly distributed to the cylinders 15a, 15b, 15c, 15d by a valve 25. Reference numeral 24 denotes a fuel tank.
[0024]
As shown in FIGS. 9 and 10, a first rotating body (guide roller) 1 a and a second rotating body 1 b are provided below the movable partition 12 so as to be separated from each other in the wall width direction. A third rotating body 1c is provided near the rotating body 1a, and a fourth rotating body 1d is provided near the second rotating body 1b. One end is fixed to the rear end of the box 10, and the The middle of the first chain 2a for fixing the other end is stretched over the first rotating body 1a and the fourth rotating body 1d and stretched, and one end is fixed to the front end side of the box 10, and the rear end is fixed. The middle of the second chain 2b, the other end of which is fixed to the side, is stretched across the second rotating body 1b and the third rotating body 1c.
[0025]
A sprocket 3a is provided on the first chain 2a and the second chain 2b. The sprocket 3a is provided with projections 4 for fitting one of the continuous rings of the chain at appropriate intervals. In the figure, reference numeral 22 denotes a guide having a curved surface that presses the first chain 2a and the second chain 2b against the sprocket 3a.
[0026]
Although not shown in a plane, a first rotating body (guide roller) 9a and a second rotating body 9b are similarly provided at a lower portion of the movable partition wall 12 so as to be separated in the wall width direction. The third rotator 9c is provided near the rotator 9a, and the fourth rotator 9d is provided near the second rotator 9b. The four sets of the first rotating body (guide roller) 9a to the fourth rotating body 9d correspond to the four sets of the first rotating body (guide roller) 1a to the fourth rotating body 1d. The first rotating bodies (guide rollers) 1a and 9a, the second rotating bodies 1b and 9b, the third rotating bodies 1c and 9c, and the fourth rotating bodies 1d and 9d are coaxial with each other. It is in the lower position.
[0027]
One end is fixed to the rear end side of the floor plate 13 and the other end is fixed to the front end side. The middle of the first chain 20a is stretched over the first rotating body 9a and the fourth rotating body 9d. I do. Further, one end is fixed to the front end side of the floor plate 13 and the other end is fixed to the rear end side. The middle of the second chain 20b is stretched over the second rotating body 9b and the third rotating body 9c. I do. A sprocket 3b is provided between the first chain 20a and the second chain 20b. The sprocket 3b is provided with protrusions 4 for fitting one of the continuous ring bodies of the chain at appropriate intervals.
[0028]
The first chain 20a and the second chain 20b have one end fixed to the rear end side of the box 10 and the other end fixed to the front end side, and the first chain 2a and the second chain 2b are connected to each other. You may make it fix to the floorboard 13 side.
[0029]
As shown in FIG. 11, a gear 7 and a locking cam 8 engageable with the gear 7 are provided as a rotation locking mechanism on the rotation shaft 5 of the sprockets 3a and 3b. The pawls 8a and 8b allow reverse rotation (either clockwise rotation or counterclockwise rotation) even when the locking cam 8 is engaged with the concave portion 7a of the gear 7. Having. The pawls 8a and 8b prevent the gear 7 from rotating in the opposite direction to each other. When both of the pawls 8a and 8b allow rotation, the pawls 8a and 8b move away from the recess 7a. In the figure, reference numeral 8c denotes a manual operation lever of the locking cam 8, which is used to select the locking of the claws 8a and 8b with respect to the concave portion 7a.
[0030]
Next, the usage will be described. In the case of unloading the container of the present invention loaded on a trailer truck, the rear end port 11 is opened assuming that there is a load in the container 10, which is a container. The movable partition 12 is located on the front side of the box 10.
[0031]
When the cylinders 15a, 15b, 15c, and 15d are extended, the floor plate 13 moves from the front side to the rear end in the box 10, and the load on the floor plate 13 and the movable partition 12 also move by that amount.
[0032]
In this case, the floorboard 13 is pulled in the same direction separately in front and rear, and it is possible to prevent deflection.
[0033]
In this state, the first chains 2a, 20a are wound halfway around the first rotating bodies 1a, 9a and the fourth rotating bodies 1d, 9d. 9a and the fourth rotating bodies 1d, 9d are stretched along the width direction of the movable partition 12, and similarly, the second chains 2b, 20b are similarly rotated by the second rotating bodies 1b, 9b and the third rotating body. Since the first and second chains 2a and 20a and the second chains 2b and 20b cross the movable partition 12 because the first and second chains 2a and 20a are wound halfway around the bodies 1c and 9c, the first rotating bodies 1a and 9a and the second The left and right sides of the movable partition 12 are pulled from the front and back of the box body 10 with the rotating bodies 1b and 9b, the third rotating bodies 1c and 9c, and the fourth rotating bodies 1d and 9d as fulcrums. To maintain a stable condition by preventing turning movements Can.
[0034]
When the movable partition 12 moves together with the floor plate 13, the engaging cam 8 is engaged with the gear 7 to fix the sprocket 3a, thereby fixing the movable partition 12 together with the floor plate 13. On the other hand, even if the sprocket 3a engages the claw 8a of the locking cam 8 in the recess 7a of the gear 7, the sprocket 3a moves away from the recess 7a and allows the gear 7 to rotate. it can. Then, the first rotating body 1a, the second rotating body 1b, the third rotating body 1c, and the fourth rotating body 1d slide on the first chain 2a and the second chain 2b, and the first chain 2a as it is. The movable partition 12 is moved in a state of being crossed by the second chain 2b.
[0035]
Next, when the cylinders 15a, 15b, 15c and 15d are contracted and the floor plate 13 moves in the reverse direction, the gear 7 is prevented from rotating clockwise by the locking cam 8, and this is transmitted to the first gear via the sprocket 3a. The movement of the chain 2a and the second chain 2b is stopped, and as a reaction, the movable partition 12 is fixed to the box 10, and the cargo does not move as it is because the front end is fixed to the movable partition 12. Even if only the floorboard 13 moves, it returns to the original state. In this case, even if the sprocket 3b engages the claw 8a of the locking cam 8 in the concave portion 7a of the gear 7, the sprocket 3b moves away from the concave portion 7a and allows the gear 7 to rotate. Can be. Then, the first rotating body 9a, the second rotating body 9b, the third rotating body 9c, and the fourth rotating body 9d slide on the first chain 20a and the second chain 20b, and the first chain 20a as it is. The movable partition 12 is moved in a state of being crossed by the second chain 20b.
[0036]
In this manner, (1) the backward movement of the floor plate 13 and the accompanying movement of the movable bulkhead 12 and the cargo, (2) the locking of the movable bulkhead 12, and (3) the forward movement of only the floor plate 13 are repeated. Then, the movable bulkhead 12 and all the cargo are sequentially moved to the rear side of the floor plate 13, and the cargo is dropped from the rear end to the outside of the box 10.
[0037]
It is necessary to move the movable partition 12 to the front side of the floor plate 13 in order to prepare for the unloading again or to load the cargo from the state where all the cargo is unloaded.
[0038]
In this case, the claw 8b of the locking cam 8 is engaged with the concave portion 7a of the gear 7, thereby preventing the gear 7 from rotating counterclockwise and allowing clockwise rotation.
[0039]
(1) The forward movement of the floor plate 13 and the accompanying movement of the movable bulkhead 12 (and the movement when loading the cargo), (2) the locking of the movable bulkhead 12, and (3) the rearward movement of only the floor board 13 Is repeated to move the movable partition 12 to the front side to prepare for the next unloading.
[0040]
FIG. 4 shows a second embodiment of the present invention, in which cylinders 15a and 15b disposed on the left and right of the rear part of the floor plate 13 and cylinders 15c and 15d disposed on the left and right of the front part are opposite to each other. It was driven.
[0041]
FIG. 5 is a hydraulic circuit diagram in which oil from a pump 26 driven by the engine 23 is alternately supplied to the cylinders 15a, 15b and 15c, 15d by valves 25a, 25b.
[0042]
When moving the floor plate 13 from the front side to the rear end in the box 10, the cylinders 15a and 15b are driven. Conversely, when the floor plate 13 is moved from the rear side to the front end and returned to the original position, the cylinder 15c and 15d are driven.
[0043]
In this manner, only the cylinder on the side from which the floor plate 13 is pulled out is driven, and as a result, the deflection of the floor plate 13 can be prevented.
[0044]
FIGS. 6 and 7 show a third embodiment of the present invention. Basically, the rear cylinders 15a and 15b are driven, and a front cylinder 15e is added to the upper part of the center. Are driven alternately.
[0045]
The cylinders 15a and 15b and the cylinder 15e are driven in opposite directions.
[0046]
FIG. 8 shows a fourth embodiment of the present invention, in which a front cylinder 15e added to the upper center is driven in the same direction as rear cylinders 15a and 15b. 15e drives in the same direction.
[0047]
Also in the case of these third and fourth embodiments, the same bending effect of the floor plate 13 as in the first and second embodiments can be exhibited.
[0048]
【The invention's effect】
As described above, the cargo handling device and the container with the cargo handling device of the present invention, as a cargo handling device for discharging or loading provided in the box, arrange a floor plate that can be moved back and forth by a cylinder at the bottom, and on this floor plate, In the loading / unloading device of the present invention and the container provided with the movable bulkhead that moves with the floor plate when moving and only the floor plate moves when locked, the floor plate can be prevented from bending by preventing the floor plate from being pushed. is there.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional side view showing a first embodiment of a cargo handling device and a container with a cargo handling device according to the present invention.
FIG. 2 is a rear view showing the first embodiment of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 3 is a hydraulic circuit diagram showing a first embodiment of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 4 is a rear view showing a second embodiment of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 5 is a hydraulic circuit diagram showing a second embodiment of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 6 is a rear view showing a third embodiment of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 7 is a longitudinal sectional side view of a main part showing a third embodiment of a cargo handling device and a container with a cargo handling device of the present invention.
FIG. 8 is a rear view showing a fourth embodiment of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 9 is a longitudinal sectional side view of a main part of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 10 is a plan view of a main part of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 11 is a plan view of a locking mechanism for fixing the movable partition of the cargo handling device and the container with the cargo handling device according to the present invention.
FIG. 12 is a perspective view showing a conventional example.
FIG. 13 is a perspective view showing another example of a fixing means for fixing a movable partition in a conventional example.
[Explanation of symbols]
1a: First rotating body (guide roller)
1b 2nd rotating body 1c 3rd rotating body 1d 4th rotating body 2a 1st chain 2b 2nd chain 3a, 3b ... sprocket 4 ... convex part 5 ... rotating shaft 7 ... gear 7a ... recess 8 ... locking cam 8a, 8b ... claw 9a ... first rotating body (guide roller)
9b 2nd rotating body 9c 3rd rotating body 9d 4th rotating body 10 ... box body 11 ... rear end opening 12 ... movable partition 12a ... support plate 12b ... partition plate 12c ... inclined surface 13 ... floor plate 14 ... Telescopic cylinders 15a, 15b, 15c, 15d, 15e Cylinder 16 Fixing means 17a Locking projection 17b Lock bar 20a First chain 20b Second chain 21 Hydraulic motor 22 Guide 23 Engine 24 Refueling tanks 25a, 25b ... valves 26 ... pumps

Claims (3)

As a loading / unloading device installed in the box, a floor plate that can be moved back and forth by a cylinder is placed at the bottom, and only a floor plate moves on this floor plate when locked and moves with the floor plate when moving In the cargo handling apparatus provided with the above, the cylinders are arranged at the front and rear of the floorboard, and the front and rear cylinders drive all the cylinders in the same direction. As a loading / unloading device installed in the box, a floor plate that can be moved back and forth by a cylinder is placed at the bottom, and only a floor plate moves on this floor plate when locked and moves with the floor plate when moving In the cargo handling equipment provided with the above, the cylinders are arranged at the front and rear of the floorboard, the front and rear cylinders are driven in opposite directions, and only the cylinder from which the floorboard is drawn is driven. apparatus. A container with a cargo handling device, wherein the cargo handling device according to claim 1 or 2 is installed in the container.

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