JP4558267B2 - Loading device and container with loading device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
For example, in the physical distribution using containers, the present invention can be applied to loads loaded without gaps in a container without a pallet without major modification of the container and without providing a large-scale apparatus outside or inside the container. Unloading work or loading work can be mechanized, and the heavy work of unloading by hand can be eliminated, which also improves the aging of container unloading and loading operators and work efficiency. The present invention relates to a cargo handling device and a container with a cargo handling device.
[0002]
[Prior art]
In recent years, container transportation has been increasing from the viewpoint of reducing transportation costs and packaging costs, shortening the transportation period, and preventing cargo pain. However, since containers are box-shaped and most containers have a single entrance / exit, a crane or the like cannot be used for loading and unloading loads. Moreover, in order to increase the loading efficiency and prevent the collapse of the load, the load is loaded in a loose state where it is not on a pallet and without any gaps. For this reason, although a conveyor, a forklift, etc. can be used for the conveyance of the load, the release of the load relies on manual work.
[0003]
The unloading work of the container requires the work of transporting and transporting the load in the container to the outside of the container, but in the case of loose objects such as chips, it is often a work that relies on humans, which is heavy work and is not preferable in terms of work safety . In particular, with the aging of workers in recent years, a cargo handling device that eliminates work to hurt the lower back from countermeasures for lower back pain is required. Conventionally, there is a crane that meets this condition, but it is not used for a container because of the drawbacks that it is difficult to install the container and the working speed is slow.
[0004]
The inventor previously filed the following application as a container with a cargo handling device for loading and unloading or loading.
[0005]
[Patent Document 1]
Japanese Patent Application No. 2000-307713 (Japanese Patent Laid-Open No. 2002-114290)
[0006]
As shown in FIG. 6, the movable bulkhead 12 that moves in the front-rear direction as a load discharging device in the box 10 that is a container outer shell, or in addition to this, can be moved back and forth laid below the movable bulkhead 12. The floor board 13 is provided.
[0007]
In Patent Document 1, the movable partition wall 12 is placed on the floor plate 13 only in contact with the support plate 12a. A so-called telescopic cylinder 14 having a multistage expansion / contraction is provided between the box body 10 and the telescopic cylinder 14. It was possible to move in the front-rear direction. On the other hand, a cylinder 15 that reciprocates between the floor plate 13 and the box 10 is provided so that the floor plate 13 can be moved 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 port 11 (forward direction), the load on the floor plate 13 is also moved so as to be carried by this. Further, the telescopic cylinder 14 is extended to move the movable partition wall 12 in the direction of the rear end port 11 (forward direction) in synchronization with the floor plate 13.
[0009]
Next, as a second stage, the telescopic cylinder 14 is fixed to fix the movable partition 12 to stop the load on the spot, and only the floor plate 13 is moved by the cylinder 15 in the counterload discharge port direction (return direction). Hereinafter, the first stage and the second stage are sequentially repeated to move the movable partition wall 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]
In addition, it replaces with the said telescopic cylinder 14 as the fixing means 16 which fixes the movable partition 12 with respect to the box 10, and is provided on the side plate of the box 10 as shown in FIG. A pendulum type or seesaw type lock bar 17b that is hooked on the locking projection 17a may be provided.
[0011]
Thus, a container is provided with a cargo handling device, and unloading work of loads loaded without gaps in a container without a pallet can be mechanized, including loose articles such as chips. The container is provided with a movable bulkhead that moves in the front-rear direction as a load discharge device or a load device in the box, which is the outer shell. In the case of load discharge, chips and other loads are moved in the direction of the load discharge port. It can be moved and discharged out of the container. In the case of loading, the movable bulkhead is used to send the load to the back side, and there is no major remodeling of the container. It becomes possible to mechanize the unloading or loading operation of the loaded load without any trouble.
[0012]
[Problems to be solved by the invention]
A steel plate or the like is used for the floor plate 13, but it is desirable that the floor plate 13 be formed relatively thin in order to reduce the weight. However, the thin one is likely to bend, and in particular, the portion having the load or the movable partition 12 on the upper side is pressed by excessive weight. On the contrary, the vicinity thereof is turned into a mountain shape, which may lead to buckling and deformation.
[0013]
The object of the present invention is to eliminate the inconvenience of the conventional example, and as a loading / unloading device provided in the box, a floor plate that can be moved back and forth by a cylinder is arranged at the bottom, and on this floor plate, when locked To provide a cargo handling device and a container equipped with a cargo handling device capable of preventing deflection by preventing the floor plate from being pushed in a cargo handling device provided with a movable partition wall that moves only when the floor plate moves and moves together with the floor plate. is there.
[0014]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention arranges a floor plate that can be moved back and forth by a cylinder at the bottom as a loading / unloading device provided in the box, and only the floor plate moves on the floor plate when locked. In a loading / unloading device provided with a movable partition that moves with the floor plate when moving, cylinders that reciprocate between the floor plate and the box are arranged on the left and right sides of the rear of the floor plate and on the left and right of the front portion. The front and rear cylinders are arranged in the opposite direction, and the driving direction of the front and rear cylinders is reversed. Oil from the pump driven by the engine is alternately distributed to the front cylinder and the rear cylinder by a valve. The gist of the invention is that only the cylinder on the side of drawing out is driven, and that the cargo handling device according to claim 1 is installed in the container.
[0015]
According to the first and second 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 stage of moving the movable partition and the load together with the floor plate; The relative position of the movable bulkhead, the load, and the floorboard is changed by sequentially repeating the stop phase in which only the floorboard is retracted while preventing the movement of the load by locking the movable bulkhead, and the box body in order from the rear load. Send out the outside.
[0016]
And, the floor plate that can move back and forth is divided by the front and rear cylinders, and the deflection of the front and rear cylinders is reversed, and the cylinder on the side that pulls out the floor plate is used differently forward and backward This can be prevented.
[0017]
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view showing a first embodiment of a container provided with a cargo handling device and a container with a cargo handling device according to the present invention, FIG. 2 is a back view of the same, and 10 is a box body that is a container outer shell. The rear end is the rear end port 11.
[0019]
The present invention is also provided with a movable partition wall 12 that moves in the front-rear direction as a load discharging device or a loading device in the box body 10 as in the above-described conventional example. (Slide plate) 13 was laid.
[0020]
The movable partition wall 12 is made of steel, and is arranged in a direction parallel to the surface of the rear end port 11 assuming that the box 10 is a rectangular parallelepiped. In addition, the movable partition 12 has an inclined surface 12c that protrudes forward at the lower side on the side facing the rear end port 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 on the floor plate 13 only in contact with the lower surface. On the other hand, a reciprocating cylinder is provided between the floor plate 13 and the box 10.
[0022]
FIG. 2 shows a second embodiment of the present invention. Cylinders 15a and 15b disposed on the left and right of the rear portion of the floor board 13 and cylinders 15c and 15d disposed on the left and right of the front portion are in opposite directions. It was supposed to be driven.
[0023]
FIG. 3 is a hydraulic circuit diagram. Oil from a pump 26 driven by the engine 23 is alternately distributed to the cylinders 15a, 15b and 15c, 15d by valves 25a, 25b.
[0024]
As shown in FIGS. 6 and 7 , the first rotating body (guide roller) 1 a and the second rotating body 1 b are provided at the lower part of the movable partition wall 12 so as to be spaced apart from each other in the wall width direction. A third rotating body 1c is provided close to the rotating body 1a, a fourth rotating body 1d is provided close to the second rotating body 1b, one end is fixed to the rear end side of the box body 10, and the front end side is fixed. The middle of the first chain 2a that fixes the other end is stretched over the first rotating body 1a and the fourth rotating body 1d, and one end is fixed to the front end side of the box 10, and the rear end The middle of the second chain 2b that fixes the other end to the side is stretched over the second rotating body 1b and the third rotating body 1c.
[0025]
The first chain 2a and the second chain 2b are provided with a sprocket 3a in which convex portions 4 for fitting one of the continuous rings of the chain are provided 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 plan view, similarly, a first rotating body (guide roller) 9a and a second rotating body 9b are provided below the movable partition wall 12 so as to be spaced apart from each other in the wall width direction. A third rotating body 9c is provided close to the rotating body 9a, and a fourth rotating body 9d is provided close to the second rotating body 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 coaxially positioned at the upper and lower stages, respectively. There is a relationship.
[0027]
One end is fixed to the rear end side of the floor plate 13 and the middle of the first chain 20a fixing the other end to the front end side is stretched over the first rotating body 9a and the fourth rotating body 9d. To do. In addition, the middle of the second chain 20b that fixes one end to the front end side of the floor plate 13 and the other end to the rear end side is stretched over the second rotating body 9b and the third rotating body 9c. To do. Between the first chain 20a and the second chain 20b, a sprocket 3b in which convex portions 4 for fitting one of the continuous rings of the chain are provided at appropriate intervals is provided.
[0028]
The first chain 20a and the second chain 20b have one end fixed to the rear end side of the box body 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 floor board 13 side.
[0029]
As shown in FIG. 8 , the rotating shaft 5 of the sprockets 3a and 3b is provided with a gear 7 and a locking cam 8 that can be engaged with the gear 7 as a rotation locking mechanism. The locking cam 8 is a claw 8a, 8b that allows reverse rotation (clockwise rotation or counterclockwise rotation) even when engaged with the recess 7a of the gear 7. Have These claws 8a and 8b prevent rotation opposite to each other with respect to the gear 7, and when both allow rotation, they move away from the recess 7a. In the figure, reference numeral 8c denotes a manual operation lever for the locking cam 8, which selects locking of the claws 8a, 8b with respect to the recess 7a.
[0030]
Next, the usage will be described. In the case of unloading in a state where the container of the present invention is loaded on a trailer truck, the rear end port 11 is opened assuming that there is a load in the box 10 which is a container. The movable partition 12 is located on the front side of the box 10.
[0031]
When the floor board 13 is moved from the front side to the rear end in the box 10, the cylinders 15a and 15b are driven, and conversely, the cylinder 15a and 15b are moved from the rear side to the front end to return to the original position. 15c and 15d are driven.
[0032]
In this way, it is possible to drive only the cylinder on the side from which the floor board 13 is drawn, and as a result, it is possible to prevent the floor board 13 from being bent.
[0033]
In this state, the first chains 2a, 20a are wound around the first rotating bodies 1a, 9a and the fourth rotating bodies 1d, 9d, so that the first rotating bodies 1a, 9a and the fourth rotating bodies 1d and 9d are stretched along the width direction of the movable partition wall 12. Similarly, the second chains 2b and 20b are connected to the second rotating bodies 1b and 9b and the third rotating body. Since the body 1c, 9c is wound on the way, the movable partition 12 is overlaid by the first chain 2a, 20a and the second chain 2b, 20b, and the first rotating body 1a, 9a, second The left and right sides of the movable partition 12 are pulled in front and rear of the box 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. Keeping a stable state by preventing turning movement Can.
[0034]
When the movable partition 12 moves together with the floor plate 13, the locking cam 8 is engaged with the gear 7 to fix the sprocket 3 a, thereby fixing the movable partition 12 together with the floor plate 13. On the other hand, even if the claw 8a of the locking cam 8 is engaged with the recess 7a of the gear 7, the sprocket 3a moves away from the recess 7a and allows the gear 7 to rotate, so that it can move freely. . 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 wall 12 moves in a state of being struck by the second chain 2b.
[0035]
Next, when the cylinders 15a, 15b, 15c, and 15d are reduced and the floor plate 13 moves in the reverse direction, the gear 7 is prevented from rotating clockwise by the locking cam 8, which is the first through 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 load is not moved as it is because the front end is fixed to the movable partition 12. Even if only the floor board 13 moves, it returns to the original. In this case, even if the claw 8a of the locking cam 8 is engaged with the recess 7a of the gear 7, the sprocket 3b moves away from the recess 7a and allows the gear 7 to rotate. Can do. 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 is left as it is. The movable partition 12 is moved in a state of being struck by the second chain 20b.
[0036]
In this way, the procedure of (1) rearward movement of the floor board 13 and movement of the movable partition 12 and the load accompanying it, (2) locking of the movable partition 12 and (3) forward movement of only the floor board 13 is repeated. Then, the movable partition 12 and all the loads are sequentially moved to the rear side of the floor plate 13, and the loads are dropped from the rear end to the outside of the box body 10.
[0037]
In order to prepare for unloading again from the state where all of the load is unloaded, or to perform loading, it is necessary to move the movable partition wall 12 to the front side of the floor plate 13.
[0038]
In this case, the claw 8b of the locking cam 8 is engaged with the recess 7a of the gear 7 to prevent the gear 7 from rotating counterclockwise and allow clockwise rotation.
[0039]
(1) Forward movement of the floor board 13 and accompanying movement of the movable partition wall 12 (also movement when loading a load), (2) Locking of the movable partition wall 12, and (3) Rear movement of only the floor board 13 The above procedure is repeated to move the movable partition 12 to the front side and prepare for the next unloading.
[0040]
[0041]
[0042]
[0043]
[0044]
FIGS. 4 and 5 show a second embodiment of the present invention . Basically, the rear cylinders 15a and 15b are driven, and a front cylinder 15e is added to the upper side of the center. Were driven alternately.
[0045]
The cylinders 15a and 15b and the cylinder 15e are driven in the opposite directions.
[0046]
[0047]
In the case of the second embodiment, the same bending effect of the floor plate 13 as in the first embodiment 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 are arranged as a cargo handling device for discharging or loading in the box, and a floor plate that can be moved back and forth by a cylinder at the bottom is disposed on the floor plate, In the loading and unloading apparatus of the present invention provided with a movable partition wall that moves only when locked and moves together with the floor plate when moving, and a container equipped with the same, the floor plate can be prevented from being bent to prevent deflection. is there.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing a first embodiment of a cargo handling apparatus and a container with a cargo handling apparatus according to the present invention.
FIG. 2 is a back view showing the first embodiment of the cargo handling device and the container with the cargo handling device of 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 of 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 of the present invention.
FIG. 5 is a longitudinal side view of a main part showing a second embodiment of the cargo handling device and the container with the cargo handling device of the present invention.
FIG. 6 is a longitudinal side view of a main part of the cargo handling device and the container with the cargo handling device of the present invention.
FIG. 7 is a plan view of a main part of the cargo handling apparatus and the container with the cargo handling apparatus according to the present invention.
FIG. 8 is a plan view of a locking mechanism for fixing the loading device and the movable partition wall of the container with the loading device of the present invention.
FIG. 9 is a perspective view showing a conventional example.
FIG. 10 is a perspective view showing another example of fixing means for fixing the movable partition wall in the conventional example.
[Explanation of symbols]
1a: first rotating body (guide roller)
DESCRIPTION OF SYMBOLS 1b ... 2nd rotary body 1c ... 3rd rotary body 1d ... 4th rotary body 2a ... 1st chain 2b ... 2nd chain 3a, 3b ... Sprocket 4 ... Convex part 5 ... Rotating shaft 7 ... Gear 7a ... Recessed part 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 11 ... rear end 12 ... movable partition wall 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 ... Oil tank 25a, 25b ... Valve 26 ... Pump

Claims (2)

  A floor plate that can be moved back and forth by a cylinder at the bottom as a loading / unloading device installed in the box body, and on this floor plate, only the floor plate moves when locked and moves with the floor plate when moving In the loading / unloading device provided with the cylinder, the reciprocating cylinders are arranged between the floor plate and the box in the cylinder disposed on the left and right of the rear portion of the floor plate and the cylinder disposed on the left and right of the front portion. The cylinders at the rear and the rear are driven in opposite directions, and oil from the pump driven by the engine is alternately distributed to the front cylinder and the rear cylinder by valves, and only the cylinder on the side that pulls out the floor plate is driven. A cargo handling device characterized by   A container with a cargo handling device, wherein the cargo handling device according to claim 1 is installed in the container.

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