JPS6288704A - Storing method for trailer chassis for container - Google Patents

Abstract

PURPOSE:To reduce a site area per one trailer chassis, by a method wherein a trailer chassis is stood against a rack for chassis by the use of a chassis stacker for storage. CONSTITUTION:A trailer chassis 1, separated from a tractor, is transported by a chassis stacker 30 to store it in a rack 2 for chassis. The trailer chassis 1 is stood against an arm 15 of the rack 2 in a manner to bring it into a vertical state. A locking member 16, preventing the trailer chassis 1 from falling down externally of a storage place S and slip out therefrom, is mounted to the arm 15. As a result, since a space equivalent to the projection area in a longitudinal direction of the trailer chassis will suffice for a site are occupied by one trailer chassis during storage, a site area is sharply reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for storing a container trailer chassis.

``Prior Art'' Until now, a well-known method for storing container trailer chassis (hereinafter referred to as trailer chassis) is to separate the trailer chassis from the tractor and store them side by side on a container yard. .

``Problems to be Solved by the Invention'' However, the trailer chassis has an elongated shape along the front and rear directions, and the storage method described above increases the area occupied by the trailer chassis I. Moreover, in order to be able to quickly take out any trailer chassis from among the many trailer chassis that are stored or to quickly store it in any storage location, it is also necessary to use a tractor or other vehicle to tow between adjacent trailer chassis. There was a problem in that it was necessary to secure a passageway for the cars to travel, and this required a very large site area for storage.

This invention was proposed in order to solve the above-mentioned problems, and it is possible to quickly store trailer chassis in any storage location among the many storage locations prepared for trailer chassis, and also to store trailer chassis in the order in which they were stored. Regardless of the situation, you can quickly take out any item from among the large number of trailer chassis stored, and moreover, you can keep the area occupied by each trailer chassis small during storage, and you can save space on the trailer chassis to be stored. To provide a method for storing a container trailer shear, which can minimize the passage required for loading and unloading and reduce the site area to be secured as a storage place.

"Means for Solving the Problems" In the trailer chassis storage method according to the present invention, an elevating plate is installed at the front of the stacker body so as to be movable up and down, and an attachment is attached to the elevating plate, (Sharn stacker that grips and transports a container trailer chassis with the attachment, and a container trailer chassis)
- It is essential to use a chassis rack erected on a site such as a container yard in order to lean up the chassis stacker, and the attachment is attached to the lifting plate and extends in the front and back direction of the chassis stacker. a turning table that can turn in a vertical plane perpendicular to the turning table; an arm that projects forward from the turning table and presses the upper end surface of the container trailer chassis from the side of the container trailer chassis; A clamp claw is provided so as to be movable in the front-rear direction and the vertical direction, and the clamp claw is provided at a lower end portion to press the lower end surface of the container trailer chassis, and the container trailer chassis is held by the arm and the clamp claw. On the other hand, the chassis rack has a structure in which a plurality of arms protruding horizontally from the upper part are arranged at predetermined intervals in the width direction of the arms, and the chassis rack can be held in an upright position by the chassis stacker. The trailer chassis is stored in a state where the trailer chassis held by the trailer chassis is placed between a pair of arms adjacent from the direction in which the arms project, and the trailer chassis is propped up against one of the arms.

``Function'' As mentioned above, in the method of storing the trailer chassis by leaning it against the ground, the site area occupied by one trailer chassis during storage is equal to the projected area of the trailer chassis in the front and rear direction. Compared to the conventional case of storing the trailer shear 2
The site area occupied by each vehicle is significantly reduced.

Moreover, the chassis stacker described above grips the trailer chassis by clamping it from the sides between the arm and the clamp claw, but it also grips the trailer chassis by rotating the turning table to which the arm and the clamp claw are attached. The trailer chassis can be set at any angle from a horizontal state to an upright state, and it is also possible to grip and release the grip at any angle.

Therefore, when storing the trailer chassis, the chassis stacker is made to grip the trailer chassis in an upright state, and the chassis stacker is run in this state to transport it to the front of the chassis rack described above. and,
Align the longitudinal direction of the chassis stacker with the protruding direction of the arms of the chassis rack, move the chassis stacker forward, place the trailer chassis held upright between the pair of arms, and then slightly lower the turning plate. The upper end of the trailer chassis should be brought into contact with one arm by a certain amount of rotation, and then the grip between the arm and the clamp claw should be released. Simply move the chassis stacker to the front of the trailer chassis and perform the work in the reverse order of the storage procedure. In other words, if you secure a path for the chassis stacker even in front of the chassis rack, you can quickly store the chassis at any location on the rack, and you can store the chassis regardless of the order in which they are stored in the rack. Any trailer chassis can be quickly taken out from among a large number of trailer chassis, and there is no need to provide a passage between adjacent trailer chassis in order to allow the trailer chassis to be freely taken out and put into any storage location.

Therefore, the passageway secured for loading and unloading the trailer chassis to be stored can be minimized, and the site area to be secured as a storage site can be effectively reduced.

"Example" First, an apparatus used to carry out the present invention will be explained, and then a storage method as an embodiment of the present invention will be explained.

In the present invention, as shown in FIG. 1, the apparatus includes a chassis rack 2 that provides a storage place for a container trailer chassis 1, and a chassis that transports the trailer chassis 1 to the rack 2 and takes it in and out of the rack 2. Use Stacker 3.

The trailer chassis 1 is for a normal container, and as shown in FIGS. 5 and 6, it has a pair of left and right beams 4 and 5 extending in the front and back direction, and a pair of beams 4.
- A front connecting member 6 that interconnects the front ends of the beams 4 and 5, and a rear connecting member 7 that interconnects the rear ends of the pair of beams 4 and 5, are located near the front end and are grounded when separated from the tractor. extendable legs 8 for holding the cargo platform horizontally;
It is equipped with an intermediate connecting member 9 that connects the pair of beams 4 and 5 between the front and rear connecting members 6 and 7, and a wheel 10 that is arranged near the rear end, so that the front connecting member 6 side is connected to the tractor. It is designed to be connected to the rear.

The chassis rack 2 includes a bottom frame 12 that is grounded on a site secured in a part of a container yard, columns 13 arranged in a row on the bottom frame 12, and these columns 1.
A beam 14 whose upper ends of 3 are interconnected, and a number of arms 15 extending horizontally from the beam 14 corresponding to each pillar 13.
and between the pair of adjacent arms 15, the trailer chassis! Since the trailer chassis 1 is stored in a storage location S, the trailer chassis 1 is stored leaning against one arm 15 with its longitudinal direction facing up and down.

A locking member 16 is provided at the tip of the arm 15, which protrudes in the width direction of the arm 15 and prevents the stored trailer chassis l from falling outward and being pulled out from the storage location S. ing. The chassis rack 2 is fixed to the site using anchor bolts or the like buried in the site to facilitate installation work.

The chassis stacker 3 is a modified existing forklift.

That is, as shown in FIG. 2, the chassis stacker 3 includes a stacker main body 18 equipped with a driving device for traveling;
The stacker body 18 is composed of an elevating plate 20 that is mounted on a mast 19 at the front part of the stacker body 18 so as to be able to rise and fall by a stroke Q1, and an attachment 21 that is attached to this elevating plate 20. 1
9 and the elevating plate 20, etc., are those for the existing forklift truck and are used as they are.

The attachment 21 includes a turning table 22 attached to the elevating plate 20, and a gripping device 23 attached to the turning table 22 and gripping the trailer chassis I.

The turning table 22 has a structure like an internal gear and is rotatably attached to the elevating plate 20, and is driven by a drive motor 25 having a pinion 24 that engages with its internal teeth to move the chassis stacker 3 in the front and back direction. It is designed to be rotated within a vertical plane perpendicular to (the left-right direction in FIG. 2).

As shown in FIGS. 2 to 4, the gripping device 23 protrudes forward from the turning table 22 and is inserted into the upper side of the trailer chassis 1 from the side of the trailer chassis 1, so that the gripping device 23 is attached to the beams 4 and 5. A pair of left and right arms 27 that press the upper end surface, and a pair of vertical members 28a and 29a provided spaced apart in the front-back direction of the arms 27 and inserted between the pair of beams 4 and 5 and extending in the vertical direction While holding down the inner surfaces of the beams 4 and 5, the vertical members 28a and 29
Clamp claws 28 and 29 are provided which hold down the lower end surfaces of the beams 4 and 5 by claws 28b and 29b extending horizontally from the lower ends of a.

A guide beam 32 is provided above the arm 27 and extends along the front-rear direction of the arm 27 and is supported movably up and down by a cylinder 31 whose lower end is fixed to the arm 27. The beam 32 is provided with an elongated guide hole that extends in the longitudinal direction of the arm 27 and passes through it in the vertical direction.

Each of the above-mentioned clamp claws 28 and 29 is attached to the vertical members 28a and 29.
The upper end of the arm 27 is inserted into the guide hole of the guide beam 32, and the arm 27 is supported by the guide beam 32 so as to be movable in the front and rear directions. Further, a threaded rod 34 extending along the front-rear direction of the arm 27 is provided on the guide beam 32 .

This threaded rod 34 has a left-handed thread formed at one end from the middle part, and a right-handed thread formed at the other end from the middle part, and has a bearing 35 fixed to the guide beam 32 at both ends. It is rotatably supported by a guide beam 32, and can be rotated in both clockwise and counterclockwise directions by a motor 36 also installed on the guide beam 32.

The above-mentioned pair of clamp claws 28 and 29 have upper ends of the respective vertical members 28a and 29a screwed into the left-hand thread and right-hand thread of the threaded rod 34, and are brought close to each other by rotation operation by the motor 36. The mutual spacing is adjusted by the stroke Q, respectively.

With such a configuration, the attachment 21 can, by driving the cylinder 31 and the motor 36,
The height positions of the claws 28b and 29b of the clamp claws 28 and 29 and the mutual spacing between the vertical members 28a and 29a can be adapted to the height and spacing dimensions of the beams 4 and 5 of the trailer chassis I, and these clamps The trailer chassis I is gripped by gripping the beams 4 and 5 between the claws 28 and 29 and the aforementioned arm 27.

An embodiment of the present invention using the chassis rack 2 and chassis stacker 3 will be described below.

Normally, the trailer chassis l is separated from the tractor and placed horizontally, and the storage work first involves moving the trailer chassis l placed horizontally to the
3 and conveys it to the front of the chassis rack 2.

In order for the chassis stacker 3 to grip the horizontally placed trailer chassis I, first, the elevating plate 20 and the cylinder 31 are operated to move the arm 27 and the clamp claws 28 and 29 onto the beam 4 of the trailer chassis I. 5, and pull the trailer chassis slightly upwards.
Move the chassis stacker 3 from the side of the arm 27.
And the clamp claws 28 and 29 are positioned above the beams 4 and 5. Next, the motor 36 is operated to narrow the distance between the clamp claws 28 and 29, and the cylinder 31 is operated to lower the clamp claws 28 and 29 between the pair of beams 4 and 5. And clamp claws 28 and 29
When the claws 28b and 29b have fallen below the lower end positions of the beams 4 and 5, the lowering of the clamp claws 28 and 29 is stopped, and the motor 36 is operated again to widen the interval between the clamp claws 28 and 29, and the elevating plate 20 and cylinder 31, the arm 27 is brought into contact with the upper end surfaces of the beams 4 and 5, and the claws 28b and 29b of the clamp claws 28 and 29 are brought into contact with the lower end surfaces of the beams 4 and 5, and the clamp claw 28b
- When the vertical members 28a and 29a of 29b are brought into contact with the inner surfaces of the beams 4 and 5, the trailer chassis l is held by the arm 27 and the clamp claws 28 and 29, as shown in FIG. Become. Next, the trailer chassis I grabbed! By raising the elevating plate 20 by an appropriate amount to the extent that the rack 2 can be turned, and then turning the turning table 22, the trailer chassis l can be brought into an upright state as shown in FIG. (The vertical movement of the trailer chassis 1 when standing upright is prevented by the intermediate connecting member 9 connecting the beams 4 and 5 coming into contact with the arm 27).

After moving the trailer stacker 3 holding the trailer chassis l in an upright state to the front of the chassis rack 2, align the front and rear direction of the chassis stacker 3 with the protruding direction of the arm 15 of the chassis rack 2, and place U-1 directly on the chassis stacker. 3 and put the trailer chassis 1, which is held in an upright position, between the pair of arms 15, 15,
Next, the turning table 22 is turned a little to bring the upper end side of the trailer chassis I into contact with the arm 15 having the locking member 16, and then the grip by the arm 27 and the clamp claws 28 and 29 is released, If Nyasi Stacker 3 is retreated,
All storage work has been completed.

On the other hand, when taking out the trailer chassis l stored in the chassis rack 2, move the chassis stacker 3 in front of the trailer chassis l to be taken out and perform the work in the reverse order of the storage procedure. .

In other words, in the above-mentioned storage method using the chassis rack 2 and the chassis stacker 3, as long as a passage for the chassis stacker 3 is secured even in front of the chassis rack 2, the chassis stacker 3 can be stored anywhere on the rack 2. In addition, regardless of the order in which they are stored in the rack 2, any trailer chassis 1 can be quickly taken out from among the many stored trailer chassis 1, and can be freely stored in any storage location. There is no need to provide a passage between adjacent trailer chassis 1 in order to allow loading and unloading. Furthermore, as mentioned above, in the method of storing the trailer chassis I by leaning it, the site area occupied by the trailer chassis I during storage can be equal to the projected area of the trailer chassis I in the longitudinal direction. Compared to the conventional case where the trailer chassis is stored separately from the tractor, the area occupied by each trailer chassis is also significantly reduced.

Therefore, compared to conventional methods, it is possible to minimize the passageway required for loading and unloading stored trailer chassis l, and it is also possible to significantly reduce the area occupied by each trailer chassis. I can,
The site area that must be secured as a storage space can be effectively reduced.

In addition, the chassis stacker 3 used in the above-mentioned example
Now, we decided to press the upper end surface of the trailer chassis l with the arm 27 and the lower end surface of the trailer chassis l with the claws 28b and 29b of the clamp claws 28 and 29, but the trailer chassis is held down in order to grip the trailer chassis l! The upper surface is not limited to the above embodiment. Further, in the above embodiment, the clamp claws 28 and 29 are inserted between the pair of beams 4 and 5 of the trailer chassis 1, but the clamp claws 28 and 29 are inserted between the pair of beams 4 and 5.
It is also conceivable to position it outside of 5 and sandwich it therein.

"Effects of the Invention" As is clear from the above explanation, the method for storing a container trailer chassis according to the present invention uses a newly developed chassis stacker to store a trailer chassis by leaning it against a chassis rack. As a result, the site area occupied by one trailer chassis during storage is equal to the projected area of the trailer chassis in the longitudinal direction, compared to the conventional case where the trailer chassis is stored separately from the tractor. The site area occupied by one trailer chassis is significantly reduced.

Moreover, the chassis stacker described above grips the trailer chassis by clamping it from the sides between the arm and the clamp claw, but it also grips the trailer chassis by rotating the turning table to which the arm and the clamp claw are attached. The trailer chassis can be set at any angle from a horizontal state to an upright state, and it is also possible to grip and release the grip at any angle.

Therefore, when storing a trailer chassis, the chassis stacker is made to hold the trailer chassis in an upright state, and the chassis stacker is driven in this state to be transported to the front of the chassis rack described above. and,
Align the front and back direction of the chassis stacker with the protruding direction of the arms of the chassis rack, move the chassis stacker forward, place the trailer chassis held upright between the pair of arms, and then turn the turning table. It is sufficient to rotate the trailer chassis slightly to bring the upper end of the trailer chassis into contact with one arm, and then release the grip between the arm and the clamp claw.On the other hand, if the trailer chassis is to be taken out from storage, the trailer chassis can be taken out. Simply move the chassis stacker to the front of the trailer chassis and perform the work in the reverse order of the storage procedure. In other words, if you secure a path for the chassis stacker even in front of the chassis rack, you can quickly store the chassis at any location on the rack, and you can store the chassis regardless of the order in which they are stored in the rack. Any trailer chassis can be quickly taken out from among a large number of trailer chassis, and there is no need to provide a passage between adjacent trailer chassis in order to allow the trailer chassis to be freely taken out and put into any storage location.

Therefore, the passageway secured for loading and unloading the trailer chassis to be stored can be minimized, and the site area to be secured as a storage site can be effectively reduced.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the storage state according to the present invention, and FIG.
Fig. 4 shows the Nyashi stacker used in carrying out the present invention, Fig. 2 is a side view, Fig. 3 is a view from the ■ arrow in Fig. 2, and Fig. 4 is a view shown by the - arrow in Fig. 3. The perspective view, FIG. 5, and FIG. 6 are respectively process explanatory diagrams when carrying out storage according to the present invention. !・・・・・・Container trailer shaan, 2...
... Chassis rack, 3 ... Sharn stacker, 4, 5 ... Pa beam, 9 ... Middle connecting member, 12 ... Bottom frame, 13...
...Column, 14...Beam, 15...Arm, 1
6...Locking member, S...Storage location, 1
8... Stacker body, 19... Mast, 20... Elevating plate, 21... Attachment, 22... Turning table, 23... ... Gripping device, 24 ... Binion, 25 ... Drive motor, 27 ... Arm, 28, 29 ...
...Clamp claw, 28a, 29a...Vertical member, 28b, 29b...Claw, 31...Cylinder, 32...Guide beam, 34... ...
...Threaded rod, 35...Bearing, 36...
motor. Figure 4

Claims (1)

[Claims] An elevating plate is installed at the front of the stacker body so that it can be raised and lowered, and an attachment is attached to the elevating plate, and the chassis stacker grips and transports the container trailer chassis with the attachment, and the container trailer chassis is propped up against the chassis stacker. In order to store the chassis, it is essential to use a chassis rack installed on a site such as a container yard, and in addition, the attachment is attached to the elevating plate and is installed vertically perpendicular to the front-rear direction of the chassis stacker. A turning table that can turn within the plane,
an arm that protrudes forward from the turning platform and presses one side of the container trailer chassis from the side of the container trailer chassis; The chassis rack is provided with a clamp claw that holds the other surface of the trailer chassis, and the container trailer chassis is gripped by the arm and the clamp claw, while the chassis rack has a plurality of horizontally protruding racks on the top thereof. The trailer chassis is configured such that arms are arranged at predetermined intervals in the width direction of the arms, and a trailer chassis held upright by the chassis stacker is inserted between a pair of adjacent arms from the direction in which the arms protrude, A method for storing a trailer chassis for a container, characterized in that the trailer chassis is stored in a state where the trailer chassis is propped up against one arm of the trailer chassis.