JP4767098B2 - Container chassis transfer plate device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a container chassis configured as a trailer loaded with a container as a transport container and pulled by a tractor, and more particularly to a container chassis transfer plate device configured to be able to stack containers of different lengths. .

  A container used as a transport container has characteristics such as easy loading and unloading of cargo, that is, unloading work, and repeated use over a long period of time. In addition, since containers can be loaded on various transportation facilities such as ships and vehicles, containers have been actively used in recent years as containers for transporting various types of cargo. For this reason, the length and the like of the containers are determined by international standards and the like, and containers having a length of 20 feet (about 6 m) and containers having a length of 40 feet (about 12 m) are often used.

  A container is a large container, and when it is transported on land by a vehicle, it is usually loaded on a container chassis that is a chassis towed by a tractor. Among container chassis, there is a container chassis that is configured to be able to load containers of different lengths, that is, for example, can be used as both a 20-foot container and a 40-foot container. As shown in FIG. 7, this dual-purpose container chassis has a long overall length that can accommodate a 40-foot container, and has a considerably long overhang portion that extends rearward from the rearmost wheel of the container chassis. .

  When one 20-foot container is loaded on the dual-purpose container chassis, it is loaded almost at the center. This is to prevent an excessive axle load from acting on the wheels of the container chassis, and by loading the container chassis in the center, the load of the container is coupled via a coupler (connector between the container chassis and the tractor). The wheel weight of the container chassis is also reduced.

As shown in FIG. 1, the container chassis is provided with two main beams 4 extending over the entire length in the front-rear direction, and a so-called ladder shape in which a cross member 5 for connecting both main beams is disposed at an appropriate position in the front-rear direction. It is based on the structure of A connecting pin 1 connected to the coupler of the tractor is fixed to the lower part of the front of the container chassis, and fastening members called twist locks are provided at the ends of the cross members 6A to 6D extended in the lateral direction. The container is positioned and fixed to the container chassis by inserting a twist lock into a hole formed in a corner or the like on the lower surface of the container and then rotating the twist lock. In the combined container chassis, 40ft container twist locks (tightening fasteners) 7A and 7D are provided at the front and rear ends. Twist locks 7B and 7C are installed. Such a dual-purpose container chassis is disclosed in Japanese Patent Application Laid-Open No. 11-2222072 as an example.
JP 11-2222072 A

  By the way, when carrying out the work of loading and unloading cargo in the container, it is desirable to load a cargo handling work vehicle such as a forklift directly into the container and to carry in and out the cargo while the container is loaded on the container chassis. For this reason, facilities handling container cargo are provided with a platform that has a height that approximately matches the floor of the container loaded on the container chassis. Normally, as shown in FIG. Position so that the ends touch each other, open the door at the rear end of the container and allow the cargo handling work vehicle to enter and exit from the platform. When a 40-foot container is loaded on the dual-purpose container chassis, the container rear end coincides with the rear end of the container chassis, and such a loading / unloading operation is possible. However, when a 20-foot container is loaded in the center, the container chassis has a ladder-shaped frame, so a forklift or the like is run from the rear end of the container, and the overhang part of the container chassis is moved. It is impossible to pass through the container.

  In the dual-purpose container chassis described in the above-mentioned Patent Document 1, for the purpose of enabling traveling such as a forklift when a 20-foot container is loaded in the center of the dual-purpose container chassis, the upper surface of the rear part of the container chassis is used. A transfer plate having a thickness to fill a step with the floor of the container is attached. This transfer plate is flat and is detachably and pivotally connected to the rear end of the container chassis by a detachable hinge. When a 20-foot container is loaded, the platform and the floor of the container And the upper surface of a transfer board becomes substantially the same height, and driving | running | working, such as a forklift, is enabled. When a 40-foot container is loaded, the hinge of the connecting portion is disassembled and the transfer plate is removed.

If such a transfer plate is provided, a forklift or the like can enter directly into a 20-foot container to perform loading and unloading operations. Therefore, it is not necessary to remove the container from the container chassis, and the convenience of loading and unloading cargo is greatly improved. Even when loading and unloading cargo by hand without using a cargo handling work vehicle, the presence of a transfer plate allows the worker to perform work on it, resulting in very good workability.
However, the height of the cargo loading / unloading platform is not always constant, and there is a considerable difference in height depending on the location. In addition, the container chassis is supported by a wheel suspension mechanism, and when the weight of the cargo in the container changes, the floor height of the container changes slightly, resulting in a difference in height from the platform. There is also. In the transfer plate as shown in Patent Document 1, which is the same height as the floor of the container, if the platform height does not match the height, there is a step between them, so that forklifts and other cargo handling operations Even if the vehicle cannot travel, even if it cannot travel, the forklift or the like will vibrate when passing through the steps, resulting in damage to the cargo.

In addition, the transfer plate must have a high rigidity and strength because a cargo handling work vehicle or the like loaded with cargo travels on the transfer plate, and inevitably has a large weight. The operation of rotating and attaching / detaching a heavy transfer plate around a hinge is burdensome to the operator, and is an operation that needs to be performed carefully in order to avoid dangers such as dropping.
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems that occur in a transfer plate installed in a dual-purpose container chassis in order to facilitate the cargo loading and unloading operation.

In view of the above-described problems, the present invention provides a dual-purpose container chassis in which fasteners are attached to both ends in the front-rear direction and an intermediate portion thereof, and a transfer plate is provided on the upper surface of the rear portion of the container chassis. In addition, struts whose movement amount can be adjusted are respectively arranged on both sides of the actuator so that the transfer plate can be held in any state with respect to the container chassis. That is, the present invention
"It is a transfer board device installed in a container chassis,
In the container chassis, container fasteners are attached to both ends in the front-rear direction, and container fasteners are attached to the middle part in the front-rear direction,
On the upper surface of the container chassis, a transfer plate is installed in a portion from the vicinity of the container fastener in the intermediate portion to the rear end of the container chassis,
The container chassis is provided with an actuator for moving the transfer plate in the vertical direction, and an operation end of the actuator is connected to an intermediate position of the transfer plate, and a front side and a rear side of the intermediate position of the transfer plate. The column is connected to a column that moves in the vertical direction, and the column is provided with a regulating device that abuts on a member fixed to the container chassis and regulates the amount of movement in an adjustable manner, and The container chassis is equipped with a holding device that holds each of the columns in a restricted position . ''
This is a container chassis transfer plate device.

According to a second aspect of the present invention, the support column includes a plurality of holes formed at equal intervals, and the holding device is inserted into one of the plurality of holes formed in the support column. A fixed outer cylinder fixed to the container chassis and fitted to slide the support column, and the fixed outer cylinder has a through-hole through which the holding shaft passes, and the amount of movement of the support column is regulated. The holding shaft can be configured to be inserted into one of a plurality of holes formed in the support column through the through hole . When comprised in this way, as described in Claim 3, the said support | pillar and the said holding | maintenance apparatus are each installed in the both sides of the horizontal direction of the said container chassis, The said holding shaft of each said holding | maintenance apparatus is set to the right-and-left interlocking rod. Further, as described in claim 4, an operation handle having a coil spring connected to an end of the left / right interlocking rod is attached, and the operation handle is operated within an operation range by the tension of the coil spring. It is preferable to hold | maintain in the position of one end or other end of.

  Moreover, when the structure of Claim 2 thru | or 4 is employ | adopted, as described in Claim 5, the said control apparatus provided in the said support | pillar is inserted in one of the some hole formed in the said support | pillar And an adjustment outer cylinder fitted to slide around the support below the fixed outer cylinder, and the adjustment outer cylinder has a through-hole through which the adjustment pin passes, When the support column moves upward, the movement can be restricted by contacting the fixed outer cylinder.

  According to a sixth aspect of the present invention, the actuator of the present invention is preferably an air cylinder operated by air pressure.

  The transfer plate device of the present invention installed at the rear part of the dual-purpose container chassis includes an actuator that moves the transfer plate up and down, and further, supports that can adjust the amount of movement are arranged on both sides of the actuator. Since the actuator is operated by power by fluid pressure or the like, it is not necessary to manually move a heavy weight passing plate, and the burden on the operator is remarkably reduced. In addition, the transfer plate is installed so as to be movable in the vertical direction, and when loading a 40-foot container on a dual-purpose container chassis, it can be moved to a low position that does not protrude from the upper surface of the container chassis. Depending on the type, there is no need to attach or detach the transfer plate, and this also reduces the burden on the operator.

The transfer plate of the present invention is connected to the front and rear sides of the position where the operating end of the actuator is connected, and the amount of movement thereof can be adjusted by the regulating device. For this reason, when the transfer plate is moved upward by the actuator, when the height of the two strut connecting positions on the transfer plate reaches the height set by the restricting device, it comes into contact with the member fixed to the container chassis. The upward movement is stopped, and in this state, the posture of the transfer plate is automatically fixed by the holding device . Since the amount of movement of the front and rear columns can be adjusted independently, the transfer plate can be fixed in an arbitrary state.
For example, when loading and unloading cargo onto a platform that matches the floor height of a 20-foot container, both struts must be moved in the same amount so that the transfer plate is level with the floor height of the container. Set to. In addition, when loading and unloading onto a platform higher than the floor height of the container, the amount of movement of the column on the rear end of the container chassis should be larger than the amount of movement of the column on the front, The connecting plate is fixed in an inclined state so that it matches the height and the front end matches the floor height of the container. As a result, even if the platform is higher than the floor height of the container, smooth traveling such as a forklift is possible, and the efficiency of loading and unloading cargo is improved. The regulation device for adjusting the amount of movement of the support is set when it arrives at the facility with the platform. However, if the height is known in advance, it can be set at the time of departure.

  When the state of the transfer plate is fixed as described above, the support columns on both sides are fixed to the container chassis by the holding device and held so that the transfer plate does not move. As a result, the weight of the forklift or the like traveling on the transfer plate is supported by the support columns on both sides, and almost no load acts on the actuator. Therefore, it is sufficient that the actuator has an ability to move the transfer plate upward, and a small and lightweight actuator can be used.

In the holding device according to the second aspect of the present invention, a plurality of holes are aligned in the axial direction and formed at equal intervals in the column supporting the transfer plate, and the column is slid onto a fixed outer cylinder fixed to the container chassis. When fitting and holding the column, the holding shaft is inserted into one of the plurality of holes of the column through the through hole of the fixed outer cylinder. According to this holding device, it is possible to fix and hold the column at an adjustable position with a simple configuration. Positioning in which the holding shaft is inserted into the hole of the support column is a reliable fixing and holding method, and it is possible to support a larger load than, for example, a fixing method using friction.
It is desirable that two support columns for supporting the transfer plate and two holding devices thereof be disposed at symmetrical positions in the lateral direction of the container chassis. When the structure of the invention of claim 2 is adopted as the structure of the holding device arranged in this way, as in the invention of claim 3, when the holding shafts of the holding device are connected to each other by the left and right interlocking rods, Both holding shafts can be moved simultaneously by operating with a handle or the like. Furthermore, as in the invention of claim 4, the left / right interlocking rod is operated using an operating handle that is held at one end or the other end of the operating range by the tension of the coil spring, that is, an operating handle with an over center lock mechanism. With this configuration, the holding shaft is maintained at a fixed position by a simple mechanism, and the unexpected movement of the holding shaft due to vibration or the like during traveling of the container chassis is prevented.

  The invention according to claim 5 is a column support method adopting the holding device according to claim 2 (or claims 3 and 4), and controls the amount of movement of the column using a plurality of equally spaced holes formed in the column. It constitutes a device. In the invention of claim 5, the adjustment outer cylinder fitted to slide around the support column is used, and when the support column connected to the transfer plate moves upward in accordance with the operation of the actuator, the adjustment outer cylinder is attached to the holding device. The movement is restricted by abutting the fixed outer cylinder. The position of the adjustment outer cylinder with respect to the support can be changed by inserting an adjustment pin into a hole of a different support through a through hole provided in the adjustment outer cylinder. Adjusted. Therefore, it is possible to easily configure a support column with a variable amount of movement, and it is not necessary to install a separate stopper or the like.

  According to the sixth aspect of the present invention, an air cylinder that operates pneumatically is used as an actuator that moves the transfer plate. The container chassis is usually equipped with an air tank for braking the wheel. When an air cylinder is used for the actuator, a power source can be easily obtained and piping to the actuator is simplified. . In addition, since the air has compressibility, the actuator will be damaged even if the movement of the transfer plate is stopped by a regulating device that regulates the amount of movement of the column or the transfer plate is bent slightly due to the weight of the forklift, etc. Not receive.

  Hereinafter, a container chassis transfer plate device of the present invention will be described with reference to the drawings. FIG. 1 shows a plan view and a front view of an entire combined container chassis equipped with the transfer plate device of the present invention. In the plan view of FIG. 1, the connecting plate 10 is indicated by hatching above the center line, and the connecting plate 10 is removed below the center line. Moreover, the front view of FIG. 1 represents the figure which looked at the right side of the container chassis from the center cross section in the part of the transfer board 10, and represents the principal part enlarged view in FIG. FIG. 3 is a perspective view showing a holding device or the like of the transfer plate 10 and represents the left side of the container chassis, and FIG. 4 is a view taken along the line AA.

  The container chassis is pulled by a tractor (not shown). As shown in FIG. 1, a connecting pin 1 connected to the coupler of the tractor is fixed to the lower front part of the container chassis, and this container is connected to the rear part. In the embodiment, three wheels 2A, 2B, 2C are connected to one side via a suspension mechanism such as a leaf spring. Further, between the pin 1 and the wheel, a support leg 3 that supports the front of the container chassis when the tractor is separated is installed, and this is lifted while the vehicle is running.

  The container chassis includes two main beams 4 extending over the entire length in the front-rear direction, and a plurality of cross members 5 that connect the two main beams 4 are disposed. Twist locks for positioning and fixing the container are attached to both ends of a cross member extending in the lateral direction of the container chassis, that is, orthogonal to the main beam 4 and extending to a length exceeding it. In the dual-purpose container chassis for loading a 40-foot container and a 20-foot container, twist locks 7A, 7D for fixing the 40-foot container to the cross members 6A, 6D provided at the front and rear ends of the container chassis. Are attached, and twist locks 7B and 7C for fixing a 20-foot container are also attached to the tips of the cross members 6B and 6C installed in the middle part of the container chassis. Instead of the twist lock, a fastener having another structure may be used.

  The transfer plate device of the present invention is provided in the overhang portion which is the rear portion of the container chassis. As shown by hatching in the plan view of FIG. 1, the transfer plate device includes a rectangular transfer plate 10 placed on the upper surface of the container chassis, and the transfer plate 10 is a twist lock 7 </ b> C that fixes the rear end of a 20-foot container. The range from the vicinity of the container chassis to the rear end of the container chassis is covered over substantially the entire length of the container chassis in the lateral direction (showing a state in which the transfer plate 10 is removed below the center line). The height of the main frame 4 where the transfer plate 10 is placed is set lower than the front main frame by the thickness of the transfer plate 10. Below the transfer plate 10, two air cylinders 20 that move up and down the transfer plate 10 are arranged symmetrically with respect to the center line of the container chassis, and are fixed to the inside of the main beam 4 by brackets. And before and after each air cylinder 20, a holding device 30 for fixing the transfer plate 10 is also arranged symmetrically with respect to the center line and fixed to the main beam 4 by a bracket. Although not shown, the air cylinder 20 is provided with an air cylinder operating device including a control valve and the like through which compressed air supply piping from the air tank 8 is guided.

  As shown in FIG. 2, a plurality of reinforcing members are fixed to the lower surface of the transfer plate 10, and the operation end of the rod 21 of the air cylinder 20 is pivotally attached to the approximate center of the lower surface of the transfer plate 10. The In front of it, a support column 40 that supports a load when the transfer plate 10 moves upward is pivotally attached, and the support column 40 is fitted into a fixed outer cylinder 31 of a holding device 30 that is fixed inside the main beam 4. It can slide up and down. A support column 40 having a similar structure is pivotally mounted near the rear end portion of the lower surface of the transfer plate 10, but the bracket that pivotally mounts the support column 40 near the rear end portion is used to rotate the transfer plate 10. A long hole is formed in order to absorb the accompanying minute shift in the front-rear direction.

Here, the detailed structure and operation method of the holding device 30 and the column 40 of the present invention will be described with reference to the perspective view of FIG.
The support column 40 is a rectangular column that is hollow and has a rectangular cross section that is long in the axial direction, and has a plurality of holes 41 of the same diameter formed at equal intervals in the axial direction. A pin 42 that engages with a hole in a bracket fixed to the lower surface of the transfer plate 10 is provided at the upper portion of the support column 40, whereby the support column 40 is pivotally attached to the transfer plate 10 and the holding device 30 is fixed. It is configured to be fitted into the outer cylinder 31 and to be able to slide in the vertical direction. The fixed outer cylinder 31 has a boss portion 32 having a rectangular cross section for guiding the support column 40 and having through holes having the same diameter as the plurality of holes of the support column 40, and the inner side surface of the main beam 4 by the bracket. It is fixed to.

  A holding shaft 33 that slides in the front-rear direction of the container chassis is fitted into a through hole formed in the boss portion 32 of the fixed outer cylinder 31, and a shaft operation lever 34 is connected to the end portion thereof. In the illustrated position, the holding shaft 33 passes through one of the through hole formed in the boss portion 32 and the hole 41 of the support column 40 and reaches the rear portion of the fixed outer cylinder 31, and the support column 40 is fixed to the main beam 4. . When the shaft operating lever 34 is rotated, the holding shaft 33 is pulled out from the hole 41 of the column 40, and the column 40 can be slid up and down. The holding shaft 33 is connected by a pin and a long hole so that the holding shaft 33 can be slid by the rotation of the shaft operating lever 34, and the moving range of the holding shaft 33 is limited by the long hole.

  A shaft for rotating the shaft operating lever 34 is a left / right interlocking rod 35, which extends in the lateral direction of the container chassis as shown in FIG. Are simultaneously rotated. On one side of the container chassis, the left / right interlocking rod 35 extends outward through the side surface of the main beam 4 via a bearing bracket, and an operation handle 36 that manually rotates the shaft operation lever 34 at the tip thereof. Is attached. The extending direction is preferably on the left side of the container chassis so that the operator can operate on the end side of the road.

  As can be seen from FIG. 4 which is an AA arrow view of FIG. 3, the intermediate point of the operation handle 36 is connected to the tip of a rod-shaped bracket 38 fixed to the main beam 4 by a coil spring 37. The coil spring 37 and the rod-shaped bracket 38 are arranged at a position that functions as a so-called over-center lock. When the operation handle 36 is at the position of the solid line in FIG. In the drawing, it operates to rotate clockwise, and when the operation handle 36 reaches the position of the two-dot chain line beyond the operation center, it operates to rotate counterclockwise. As a result, the holding shaft 33 connected to the shaft operating lever 34 can be held at the positions at both ends of the moving range.

  An adjustment outer cylinder 43 having a hollow rectangular cross section is slidably fitted to the lower portion of the support column 40 in order to regulate the amount of movement of the support column 40 that rises with the transfer plate 10 by the air cylinder 20. The adjustment outer cylinder 43 is provided with a through hole having the same diameter as the plurality of holes 41 of the support column 40, and the adjustment pin 44 is inserted into one of the holes 41 of the support column 40 through the through hole, so Attached to. The adjustment outer cylinder 43 and the adjustment pin 44 constitute a regulating device that regulates the amount of movement of the support column 40 so that the movement amount of the support column 40 can be adjusted. When the support column 40 moves upward, the upper end of the adjustment outer cylinder 43 is fixed to the fixed outer cylinder. Abutting on the lower end of 31 makes further movement impossible.

Next, the operation of the transfer plate device of the present invention will be described with reference to FIGS.
When the container chassis is in a traveling state with a 20-foot container loaded, compressed air is not supplied to the air cylinder 20, and the transfer plate 10 is at the lowest position as shown in FIG. The upper surface coincides with the upper surface of the front main frame 4. The support column 40 is also at the lowermost position, and the holding shaft 33 of the holding device 30 is inserted into the uppermost hole 41 of the support column 40 so that the transfer plate 10 is fixed at this position during traveling. When the transfer plate 10 is positioned at the lowermost position, it does not protrude from the upper surface of the container chassis. Therefore, a 40-foot container can be loaded on the container chassis without removing the transfer plate 10.

When a container chassis loaded with a 20-foot container arrives at the facility where the platform is located, cargo handling work for loading and unloading is carried out. When the platform height matches the floor surface of the container, as shown in FIG. 5B, the transfer plate 10 is raised to the height of the container floor surface in parallel with the upper surface of the container chassis. Therefore, the operator operates the operation handle 36 to pull out the holding shaft 33 from the hole 41 of the support column 40, and the adjustment outer cylinder 43 with respect to the support column 40 so that the amount of movement of the support column 40 is the distance to the container floor. The position is set and fixed with the adjusting pin 44. In order to make the transfer plate 10 parallel to the upper surface of the container chassis, the adjustment outer cylinder 43 is fixed at the same position on the front and rear columns 40.
Next, the operator operates the operating device of the air cylinder 20 to supply compressed air to the air cylinder 20 and raise the rod 21. As a result, the transfer plate 10 moves upward, but when the transfer plate 10 rises in parallel to the container floor surface, the adjustment outer cylinder 43 fixed to the front and rear columns 40 is at the lower end of the fixed outer cylinder 31. Abuts and automatically stops moving. The operator rotates the operation handle 36 again to insert the holding shaft 33 into the hole 41 of the column 40, and the column 40 is fixed to the container chassis by the holding device 30 at this position. Since the left and right holding shafts 33 of the container chassis are connected by the left and right interlocking rods 35, the operator can operate both holding shafts 33 by work only on one side of the container chassis.

  When the height of the platform is lower than the floor of the container, the amount of movement of the front column is larger than the amount of movement of the rear column so that the transfer plate 10 rises forward and the state shown in FIG. The air cylinder 20 is operated after setting it large and fixing the adjustment outer cylinder 43 to both the columns 40. Conversely, when the height of the platform is higher than the floor of the container, the movement amount of the rear column is set to be larger than the movement amount of the front column so that the transfer plate 10 is in the state shown in FIG. After setting it large, the air cylinder 20 is operated. When the transfer plate 10 is stopped in each state, the operation handle 36 is rotated and each support column 40 is fixed to the container chassis at the position by the holding device 30 in the same manner as described above.

  In this way, when the transfer plate 10 is installed in the overhang portion of the container chassis, a work vehicle such as a forklift can directly enter a 20-foot container and perform a cargo handling operation. Further, even when there is a difference in height between the platform and the floor of the container, the step between them can be eliminated by inclining the transfer plate 10 so that the work vehicle can run smoothly. Since the transfer plate 10 is moved using the air cylinder 20, the operator is hardly burdened, and the weight of the work vehicle traveling on the transfer plate 10 is supported by the four support columns 40. An excessive load does not act on the rod of the cylinder 20.

  As described in detail above, the present invention provides a dual-purpose container chassis for loading containers of different lengths, and is provided with a transfer plate that is moved up and down by the actuator on the upper surface of the rear portion of the container chassis, and is further provided with support columns on both sides of the actuator. It is arranged so that the transfer plate can be held in an arbitrary state with respect to the container chassis. In the above-described embodiment, the combined container chassis of the 20-foot container and the 40-foot container has been described. However, it goes without saying that the present invention can be applied to a container loaded with containers of other dimensions. There are various modifications to the above embodiment, such as using an electric motor as the actuator, or adopting a mechanism that holds the friction material in pressure contact with the support as the brake plate holding device. Obviously it is possible.

1 is an overall view of a container chassis according to the present invention. It is a principal part enlarged view of the delivery board apparatus of this invention. It is a perspective view which shows the holding | maintenance apparatus etc. in the delivery board apparatus of this invention. It is an AA arrow line view of FIG. It is operation | movement explanatory drawing of the delivery board apparatus of this invention. It is operation | movement explanatory drawing of the delivery board apparatus of this invention. It is a figure which shows the loading / unloading state of the cargo in a container chassis.

Explanation of symbols

2A to 2C Wheel 4 Main beam 6A to 6D Cross member (with twist lock)
7A to 7D Twist lock 10 Transfer plate 20 Air cylinder 30 Holding device 31 Fixed outer cylinder 33 Holding shaft 34 Shaft operating lever 35 Left and right connecting rod 36 Operating handle 37 Coil spring 40 Post 41 Hole 43 Adjusting outer cylinder 44 Adjustment pin

Claims (6)

A transfer board device installed in a container chassis,
In the container chassis, container fasteners are attached to both ends in the front-rear direction, and container fasteners are attached to the middle part in the front-rear direction,
On the upper surface of the container chassis, a transfer plate is installed in a portion from the vicinity of the container fastener in the intermediate portion to the rear end of the container chassis,
The container chassis is provided with an actuator for moving the transfer plate in the vertical direction, and an operation end of the actuator is connected to an intermediate position of the transfer plate, and a front side and a rear side of the intermediate position of the transfer plate. The column is connected to a column that moves in the vertical direction, and the column is provided with a regulating device that abuts on a member fixed to the container chassis and regulates the amount of movement in an adjustable manner, and A container chassis transfer plate device, wherein the container chassis is provided with a holding device for holding each of the columns in a restricted position . The support column includes a plurality of holes formed at equal intervals, and the holding device is fixed to the container chassis and a support shaft inserted into one of the plurality of holes formed in the support column. A fixed outer cylinder that is fitted to slide, and the fixed outer cylinder has a through-hole through which the holding shaft passes , and the holding outer cylinder is held when the holding column is held at a regulated amount of movement. The container chassis transfer plate device according to claim 1, wherein the shaft is inserted into one of a plurality of holes formed in the support column through the through hole . The container chassis delivery according to claim 2, wherein the support column and the holding device are respectively installed on both lateral sides of the container chassis, and the holding shafts of the holding devices are connected to each other by a left-right interlocking rod. Board equipment. An operation handle to which a coil spring is connected is attached to an end of the left / right interlocking rod, and the operation handle is held at one end or the other end of an operation range by the tension of the coil spring. 3. The container chassis transfer plate device according to 3. The regulating device provided in the support column includes an adjustment pin inserted into one of a plurality of holes formed in the support column, and an adjustment outer tube fitted to slide around the support column below the fixed outer tube. And the adjustment outer cylinder has a through-hole through which the adjustment pin penetrates, and when the support column moves upward, the adjustment outer cylinder abuts on the fixed outer cylinder to restrict movement. The container chassis transfer plate device according to any one of claims 4 to 4. The container chassis transfer plate device according to any one of claims 1 to 5, wherein the actuator is an air cylinder operated by air pressure.

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