JP2007269069A - Semi-trailer for loading container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a semi-trailer for loading containers facilitated in loading of a load into a container in the state that the container is loaded on the semi-trailer, displacing forward in the travelling direction. <P>SOLUTION: The semi-trailer 10 for loading containers has a main frame provided with several vertical beam materials and lateral beam materials and to be loaded with the container 24a. The main frame is provided with a deck installation part 25 in a rear end thereof. A rear deck 31 is installed in the deck installation part 31 freely to vertically move, and the rear deck 31 is raised in the state that the main frame is loaded with the container 24, displacing the rear end of the container 24a in comparison with a front side of the main frame, to form the floor surface 38 of the container 24a and the rear deck 31 into the nearly same surface for loading in relation to the container 24a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a container-loading semi-trailer that is driven by a tractor and transports a container.

  In a connected vehicle having a tractor that is a tow vehicle and a trailer that is a towed vehicle, a full trailer with a loading platform provided on the towing vehicle side, and a coupler that connects the front side of the towed vehicle with the loading platform provided only on the towed vehicle There is a semi-trailer that is connected to the towing vehicle by. Containers loaded on the semi-trailer include a small container with a 20-foot length in the direction of travel of the vehicle and a large container with a length of 40 feet. There is a type and a dual-purpose type that can load both lengths.

  Since the container-loading semi-trailer travels by being pulled by the tractor, no driving wheel is provided, and a traveling axle having a traveling wheel that follows is disposed on the rear end side of the semi-trailer. The semi-trailer is usually provided with one to three traveling axles.

  The loading and unloading of cargo into the container is performed by a cargo unloading vehicle such as a forklift or a trolley with the rear end of the semi-trailer approaching the platform provided at the entrance of the warehouse. It is desirable that the container is loaded on the semi-trailer so as to be close to the rear end. However, since the semi-trailer is connected to the trailer by a coupler provided at the tip of the semi-trailer and is pulled by a tractor having a driving wheel, if the load is not applied from the semi-trailer to the driving wheel of the tractor at the coupling portion, the driving wheel Slipping and traction traveling by the tractor cannot be performed stably. Therefore, a load is applied to the tractor from the semi-trailer by attaching a weight of a predetermined weight to the front end portion of the semi-trailer.

  Patent Document 1 describes a semi-trailer in which a container is mounted on a semi-trailer so as to be movable in the direction of travel of the trailer. In this semi-trailer, when loading and unloading cargo into the container, the rear end of the container is brought close to the rear end of the semi-trailer, and when the semi-trailer is running, the container is slid forward in the running direction to load the container. Is added to the drive wheel of the tractor.

On the other hand, a small container is loaded while being shifted to the front side of the semi-trailer, and the transfer plate can be rotated to fill the space between the platform and the floor of the small container in the space at the rear end of the semi-trailer. Patent Document 2 discloses a container chassis that is detachably provided. In this case, it is necessary to use a transfer plate when loading and unloading cargo into a small container, and to remove a transfer plate when loading a large 40-foot container. The rear end of the large container is supported.
JP 2000-142205 A JP 11-2222072 A

  As described above, in order to change the position of the container in the traveling direction between loading and unloading the luggage into the container and traveling the luggage, a large driving device for sliding the heavy container is required. , Semi-trailer manufacturing costs increase. On the other hand, a transfer plate is provided at the rear end of the semi-trailer so that it can be pivoted and detached. The transfer plate is used when loading and unloading cargo into a small container, and when a large container is loaded. If it is made to remove, the rotation operation | work and attachment / detachment operation | work of a transfer board must be performed by a manual operation, and the operation | work will become a burden on an operator.

  An object of the present invention is to enable easy loading and unloading of luggage into a container in a state where the container is loaded on the semi-trailer with its rear end shifted to the front side in the traveling direction from the rear end of the semi-trailer. is there.

  Another object of the present invention is to load a large container with the rear end of the container approaching the rear end of the semi-trailer and to load a small container with the rear end of the container shifted from the rear end of the semi-trailer. It is to be able to easily switch to a state.

  The container-loading semi-trailer of the present invention comprises a main frame on which a container is loaded, comprising a plurality of vertical beam members extending in the traveling direction and a plurality of horizontal beam members extending in the lateral direction and interconnecting the vertical beam members. A container-loading semi-trailer provided with a king pin connected to the tractor at the front end of the main frame and provided with a traveling wheel on the rear end, the deck mounted on the rear end of the main frame A container supporting portion provided on the main frame in front of the deck mounting portion, and mounted on the deck mounting portion so as to be movable up and down, and a luggage is loaded in a small container loaded on the container supporting portion. A rear deck that moves up and guides the cargo unloading vehicle when loading and unloading, and is provided at the deck mounting portion, and the rear deck is moved vertically And having a kinematic drive means.

  The container loading semi-trailer according to the present invention is configured such that when a large container having a length longer than that of the small container is loaded on the main frame, the upper surface of the rear deck is set to be substantially the same height as the upper surface of the container support portion. The rear end of the large container is supported by the rear deck after positioning.

  The container-loading semi-trailer of the present invention is provided with a support leg movably in the vertical direction toward the traveling ground, and the load that the support leg applies to the deck mounting part when loading / unloading a load in the small container It is characterized by supporting.

  The container-loading semi-trailer of the present invention is provided with a rear transfer plate rotatably at the rear end of the rear deck, and the platform and the rear deck are separated by the transfer plate when loading and unloading the cargo in the small container. It is characterized by bridging between.

  The container-loading semi-trailer of the present invention is provided with a front-side transfer plate rotatably at the front end of the rear deck, and when the cargo is loaded and unloaded in the small container, the transfer plate allows the rear deck and the small container to be unloaded. It is characterized by a bridge between the floor.

  The container-loading semi-trailer according to the present invention is characterized in that the rear deck is inclined in the traveling direction of the vehicle under a state where the rear deck is moved up.

  According to the present invention, since the container can be loaded while being shifted to the front side of the main frame, it is possible to apply the load of the container to the driving wheel of the tractor without mounting the load on the front end portion of the main frame. The semi-trailer can be smoothly pulled by the tractor.

  According to the present invention, since the rear deck is mounted on the deck mounting portion provided at the rear end portion of the main frame so as to be movable up and down, a step can be eliminated between the rear deck and the floor in the container. In addition, it is possible to easily carry out loading and unloading operations on the loaded containers in a state where the rear end of the container is shifted to the front side in the traveling direction from the rear end of the main frame.

  According to the present invention, by making the upper surface of the rear deck substantially coincide with the upper surface of the container support portion of the main frame, not only a small container with the rear end of the container shifted from the rear end of the semi-trailer, but also the rear of the container. Large containers can be loaded with the end approaching the rear end of the semi-trailer.

  According to the present invention, the loading / unloading vehicle can be smoothly guided between the rear deck and the platform by rotatably mounting the transfer plate on the rear end portion of the rear deck. Further, by mounting the transfer plate on the front end portion of the rear deck so as to be rotatable, it is possible to smoothly guide the cargo unloading vehicle between the rear deck and the container.

  According to the present invention, by tilting the rear deck in the traveling direction of the vehicle, a step can be eliminated between the rear deck and the platform, and a step can be eliminated between the rear deck and the floor in the container. .

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a container loading semi-trailer according to an embodiment of the present invention, and FIG. 2 is a plan view of FIG.

  As shown in FIG. 2, the semi-trailer 10 includes a main frame 13 including two vertical beam members 11 extending in the traveling direction and a plurality of horizontal beam members 12 extending in the horizontal direction and connecting the vertical beam members 11 to each other. have. On the rear end side of the main frame 13, three traveling axles 15 to 17 each having traveling wheels 14 provided at both ends are provided.

  The front end portions of the two vertical beam members 11 are formed with a gooseneck portion 18 that is narrower than the rear portion and protrudes upward. A king pin 19 is provided to protrude toward the surface. The semi-trailer 10 is connected to a tractor as a towing vehicle (not shown) by the king pin 19 and travels by being pulled by the tractor. As shown in FIG. 1, the front end of the semi-trailer 10 is a landing leg, i.e., supports the load at the front end of the semi-trailer 10 and keeps it in a horizontal state when the semi-trailer 10 is not connected to the tractor. A support leg 21 is mounted so as to be movable in the vertical direction. 1 and 2 show a state in which the semi-trailer 10 is separated from the tractor and left alone on the ground surface 22. Side bumpers 23 manufactured by combining a plurality of bars are attached to the main frame 13 on the left and right.

  As shown by a two-dot chain line in FIG. 1, the semi-trailer 10 selects either a small container 24a having a length in the running direction of 20 feet or a large container 24b having a length of 40 feet. Can be loaded. A deck mounting portion 25 is formed at the rear end of the main frame 13, and a container support portion 26 is provided in front of the deck mounting portion 25, and a small container 24 a is loaded on the container support portion 26. . When the small container 24a is loaded on the container support 26, the rear end surface of the container 24a is positioned between the intermediate traveling axle 16 and the rear traveling axle 17. On the other hand, the large container 24 b is supported by almost the entire semi-trailer 10 so that the rear end portion thereof covers the deck mounting portion 25.

  3 and 4 are enlarged front views showing the deck mounting portion 25 formed at the rear end portion of the semi-trailer 10, and FIG. 5 is a perspective view showing a schematic structure of the deck mounting portion 25.

  The vertical beam member 11 in the deck mounting portion 25 is set to have a short vertical dimension, and as shown in FIG. 5, a crossbar 27 is fixed to the rear end of the deck mounting portion 25 extending in the horizontal direction. A cross bar 28 is fixed to the front end of the deck mounting portion 25 so as to extend in the horizontal direction, and a rear bumper 29 is attached to the lower portion of the cross bar 27 via a connecting bracket. A rear deck 31 is mounted between the crossbars 27 and 28 so as to be movable in the vertical direction.

  The rear deck 31 has a quadrilateral frame 32. A reinforcing bar 33 is incorporated in a lattice shape inside the frame 32, and a floor plate 34 made of expanded metal or the like is attached to the surface. In FIG. 5, a part of the floor board 34 is cut away. In order to guide the rear deck 31 in the vertical direction, a plurality of rods 35 projecting downward are attached to the rear deck 31, and the rod 35 is moved up and down corresponding to each rod 35 to the deck mounting portion 25 of the semi-trailer 10. A guide 36 for guiding is attached. As shown in FIG. 5, the rods 35 are formed of square pipes and six are attached to the rear deck 31, but the number of rods 35 can be set to an arbitrary number. The guide 36 fixed to the deck mounting portion 25 is formed of a steel material having a U-shaped cross section, but the guide 36 may be formed of a square pipe.

  A plurality of air springs 37 are attached to the deck mounting portion 25 as driving means for driving the rear deck 31 in the vertical direction. In the illustrated case, two air springs 37 are attached to the deck mounting portion 25. When compressed air is supplied to each air spring 37 from an external compressed air supply source, the air spring 37 expands in the vertical direction. The rear deck 31 is driven upward, and when the air in the air spring 37 is discharged to the outside, the rear deck 31 is lowered. The number of the air springs 37 can be set arbitrarily.

  FIG. 3 shows a state where the rear deck 31 is moved downward. Under the state where the rear deck 31 is lowered, the upper surface of the rear deck 31 is positioned substantially flush with the upper surface of the container support portion 26. At this time, the upper surface of the rear deck 31 is lower than the floor surface 38 of the small container 24 a, and the rear deck 31 has a step with respect to the floor surface 38. On the other hand, when the rear deck 31 is moved up, the upper surface of the rear deck 31 becomes substantially flush with the floor surface 38 as shown in FIG. Therefore, as shown in FIG. 4, when loading or unloading a cargo from the platform 39 into or out of the container 24 a by a cargo loading / unloading vehicle such as a forklift, a wheelbarrow, or a car cart, The cargo unloading operation can be easily performed by the cargo unloading vehicle, and the cargo unloading vehicle can be entered from the rear deck 31 into the container 24a.

  As shown in FIG. 3, when the rear deck 31 is moved downward and the upper surface of the rear deck 31 is positioned substantially flush with the upper surface of the container support 26, the rear end of the large container 24b is moved to the rear deck 31. The container 24b can be loaded on the entire semi-trailer 10 so as to be supported. At this time, it is possible to load and unload luggage directly from the platform 39 using a luggage loading and unloading vehicle.

  As shown in FIG. 3 and FIG. 4, support legs 41 are provided on the deck mounting portion 25 in order to transmit the load applied from the cargo loading / unloading vehicle to the rear deck 31 and to support the rear deck 31 on the ground surface 22. It is mounted so that it can move vertically. As shown in FIG. 3, the support leg 41 moves upward in a state of being retracted from the ground surface 22, and the support leg 41 is in the retracted position when the semi-trailer 10 travels.

  1 and 2 show the semi-trailer 10 that can selectively load both the small container 24a and the large container 24b, but the rear end of the container 24a is more forward than the rear end of the semi-trailer 10. Even in the small-sized semi-trailer 10 of the type in which the container 24a is loaded in a shifted state, the rear deck 31 is provided at the rear end portion of the semi-trailer 10 so that cargo can be easily loaded and unloaded into the container 24a. it can.

  FIG. 6 is a front view showing a modified example of the rear deck 31, and a rear transfer plate 42 is provided at the rear end of the rear deck 31 so as to be rotatable around a hinge 43. As a result, when loading and unloading the cargo in the container 24a, the rear plate 31 and the rear deck 31 are opened by opening the transfer plate 42 to a position where the leading end of the transfer plate 42 is placed on the platform 39 as shown in FIG. Even if there are gaps or steps between the platform 39 and the bridge plate 42 between them, the cargo loading / unloading vehicle can be smoothly guided between the platform 39 and the rear deck 31. it can. When the transfer plate 42 is closed at the rear end portion of the rear deck 31, a recess 44 into which the transfer plate 42 enters is formed, and the surface of the transfer plate 42 in the closed state substantially coincides with the upper surface of the rear deck 31. It becomes. As a result, the rear end portion of the large container 24b is supported by the entire rear deck 31.

  The rear deck 31 shown in FIG. 6 is provided with a front transfer plate 42a that is rotatable about a hinge 43a. As a result, when loading and unloading cargo in the container 24a, the transfer plate 42a is opened to a position where the tip of the transfer plate 42a is placed on the floor surface 38 of the container 24a as shown in FIG. Even if there are gaps or steps between the rear deck 31 and the floor surface 38, the transfer plate 42a is bridged between them. When the bridge plate 42a is in a closed state, a recess 44a into which the transfer plate 42a enters is formed at the front end portion of the rear deck 31.

  The rear deck 31 shown in FIG. 6 is provided with transfer plates 42 and 42a at the front end portion and the rear end portion, respectively. However, the transfer plate is rotatably provided only at one of the front end portion and the rear end portion. May be. Further, without providing the recesses 44 and 44 a on the surface of the rear deck 31, when the entire upper surface of the rear deck 31 is flattened and the respective transfer plates 42 and 42 a are closed, the closed transfer plates 42 and 42 a are separated from the surface of the rear deck 31. You may make it protrude only by thickness, and in that case, when supporting the large sized container 24a, it is made for the upper surface of the transfer plates 42 and 42a to become substantially the same surface as the upper surface of the container support part 26. Is preferred.

  FIG. 7 is a front view showing another modified example of the rear deck 31. A rod 35 is swingably connected to the rear deck 31 by means of a pin 45. It will be in the state which inclined in the running direction of vehicles so that an end side may become lower than a front end side. By tilting the rear deck 31 in the ascending limit position in this way, it is possible to smoothly guide the cargo unloading vehicle on the rear deck 31 even if there is a step between the platform 39 and the floor surface 38. . Thus, in order to incline the rear deck 31, the stroke of the ascending limit is made different between the driving means provided on the front side of the deck mounting portion 25 and the driving means provided on the rear side. Note that when the rear deck 31 is in the ascending limit position, the rear deck 31 may be inclined in the direction opposite to that shown in FIG. That is, you may make it incline so that the rear-end part side of the rear deck 31 may become higher than the front-end part side.

  The means for moving the rear deck 31 up and down is not limited to the above-described case, and various mechanisms can be used as shown in FIGS. 8 to 16, only the rear deck 31 and the vertical movement mechanism provided thereon are shown, and the deck mounting portion 25 is not shown.

  FIG. 8A is a perspective view showing a modification of the guide mechanism for guiding the vertical movement of the rear deck 31, and FIG. 8B is a front view of FIG. In the embodiment shown in FIG. 5, the rod 35 provided on the rear deck 31 is slidably attached to the guide 36 provided on the deck mounting portion 25 to guide the vertical movement of the rear deck 31. On the other hand, in the case shown in FIG. 8, two pairs of link mechanisms 51 are mounted between the rear deck 31 and the deck mounting portion 25. Each link mechanism 51 has two levers 52 and 53, one end of which is pin-coupled to the rear deck 31 and the other end of which is pin-coupled to the deck mounting portion 25. The levers 52 and 53 are pin-coupled at respective intermediate portions. ing. By sliding the pin on the deck mounting portion 25 side with respect to the deck mounting portion 25, the rear deck 31 moves up and down while maintaining the horizontal state.

  FIG. 9A is a perspective view showing another modification of the guide mechanism for guiding the vertical movement of the rear deck 31, and FIG. 9B is a front view of FIG. This guide mechanism is formed by two pairs of link mechanisms 51 as in the case shown in FIG. 8, but unlike the link mechanism 51 shown in FIG. These levers 54 have one end connected to the rear deck 31 and the other end connected to the deck mounting portion 25. The guide mechanism shown in FIGS. 8 and 9 may be provided in the deck mounting portion 25 together with the vertical movement guide mechanism using the rod 35 and the guide 36 shown in FIG. In addition to the guide mechanism shown in FIGS. 8 and 9, the rear deck 31 can be driven in the vertical direction by providing the deck mounting portion 25 with the air spring 37 shown in FIG.

  FIG. 10A is a perspective view showing a modification of the driving means for driving the rear deck 31 in the vertical direction, and FIG. 10B is a front view of FIG. This driving means is formed by a plurality of pantographs 55 having a structure similar to that of a manual jack. By rotating a driving shaft 56 provided on each of them manually or by a motor, the rear deck 31 is kept in a horizontal state while being vertically moved. Can be driven in the direction. In the case shown in FIG. 10, four pantographs 55 are provided, but three pantographs 55 may be provided, or four or more pantographs 55 may be provided.

  FIG. 11A is a perspective view showing a modification of the driving means for driving the rear deck 31 in the vertical direction, and FIG. 11B is a front view of FIG. A plurality of screw shafts 57 fixed to the rear deck 31 and nut members 58 screwed to the respective screw shafts 57 and rotatably attached to the deck mounting portion 25 form drive means, and the nut members 58 are rotated by a motor. As a result, the screw shaft 57 is driven in the vertical direction. Therefore, this driving means can drive the rear deck 31 in the vertical direction while holding the rear deck 31 in the horizontal state as in the case shown in FIG.

  FIG. 12A is a perspective view showing a modification of the driving means for driving the rear deck 31 in the vertical direction, and FIG. 12B is a front view of FIG. A plurality of fluid pressure cylinders 61 that are operated by a fluid such as hydraulic pressure or air are attached to the deck mounting portion 25, and the piston rod 62 of each fluid pressure cylinder 61 is attached to the rear deck 31. When the rear deck 31 is driven by the fluid pressure cylinder 61 in this way, the rear deck 31 is moved up and down while maintaining the horizontal state without using the piston rod 35.

  FIG. 13A is a perspective view showing a modification of the driving means for driving the rear deck 31 in the vertical direction, and FIG. 13B is a front view of FIG. A plurality of rack gears 63 are attached to the rear deck 31 so as to protrude downward, and pinion gears 64 that mesh with the respective rack gears 63 are attached to the deck mounting portion 25. Therefore, the rear deck 31 is moved up and down by rotationally driving the pinion gear 64 by a motor (not shown). The pinion gear 64 may be a spur gear or an inclined gear.

  FIG. 14A is a perspective view showing a modification of the driving means for driving the rear deck 31 in the vertical direction, and FIG. 14B is a front view of FIG. A plurality of driven cams 65 each having an inclined surface are fixed to the rear deck 31, and an inclined surface that contacts the inclined surface of the driven cam 65 is formed in the deck mounting portion 25 so as to correspond to each driven cam 65. A drive cam 66 is movably provided. Each drive cam 66 is driven by a fluid pressure cylinder 67 that is operated by a fluid such as hydraulic pressure or air pressure. However, the drive cam 66 may be driven by a motor.

  When the driving means shown in FIGS. 13 and 14 is used, the rod 35 shown in FIG. 5 is attached to the rear deck 31 and the guide 36 is attached to the deck mounting portion 25 in order to guide the rear deck 31 in the vertical direction. become.

  FIG. 15A is a perspective view showing a modification of the driving means for driving the rear deck 31 in the vertical direction, and FIG. 15B is a front view of FIG. A plurality of compression coil springs 68 are attached between the rear deck 31 and the deck mounting portion 25, and an upward spring force is applied to the rear deck 31 by these coil springs 68. The rear deck 31 can be moved up and down by applying a downward thrust to the rear deck 31 against this spring force.

  FIG. 16A is a perspective view showing driving means for applying a downward thrust against the rear deck 31 against the spring force, and FIG. 16B is a front view of FIG. A plurality of pulleys 71 are rotatably mounted on the rear deck 31, and a wire 73 wound around a take-up pulley 72 is wound around each pulley 71 with its tip fixed to the deck mounting portion 25. Therefore, when the coil spring 68 shown in FIG. 15 and the wire winder shown in FIG. 16 are combined, the rear deck 31 is driven upward by the spring force by loosening the wire 73, and the spring force is resisted by winding the wire 73. Thus, the rear deck 31 can be moved downward. In addition to the compression coil spring 68 shown in FIG. 15, various spring members such as a sition bar and a leaf spring can be used as the spring member for applying the upward spring force to the rear deck 31.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Although the three traveling axles 15 to 17 are provided in the semi-trailer 10 shown in FIG. 1, the present invention can be applied to various semi-trailers 10 such as a single-axle type or a two-axle type. it can.

It is a front view which shows the semi-trailer for container loading which is one embodiment of this invention. It is a top view of FIG. It is an enlarged front view which shows the deck mounting part in the state in which the rear deck fell. It is an enlarged front view which shows the deck mounting part in the state which the rear deck raised. It is a perspective view which shows schematic structure of a deck mounting part and a rear deck. It is a front view which shows the modification of a rear deck. It is a front view which shows the modification of a rear deck. (A) is a perspective view which shows the modification of the guide mechanism which guides the vertical movement of a rear deck, (B) is a front view of (A). (A) is a perspective view which shows the modification of the guide mechanism which guides the vertical movement of a rear deck, (B) is a front view of (A). (A) is a perspective view which shows the modification of the drive means which drives a rear deck to an up-down direction, (B) is a front view of (A). (A) is a perspective view which shows the modification of the drive means which drives a rear deck to an up-down direction, (B) is a front view of (A). (A) is a perspective view which shows the modification of the drive means which drives a rear deck to an up-down direction, (B) is a front view of (A). (A) is a perspective view which shows the modification of the drive means which drives a rear deck to an up-down direction, (B) is a front view of (A). (A) is a perspective view which shows the modification of the drive means which drives a rear deck to an up-down direction, (B) is a front view of (A). (A) is a perspective view which shows the modification of the drive means which drives a rear deck to an up-down direction, (B) is a front view of (A). (A) is a perspective view which shows the drive means which applies the thrust which resists a rear deck against a spring force, (B) is a front view of (A).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Semi trailer 11 Vertical beam material 12 Horizontal beam material 13 Main frame 14 Traveling wheel 15-17 Traveling axle 18 Gooseneck part 19 King pin 24a Small container 24b Large container 25 Deck mounting part 26 Container support part 27, 28 Crossbar 31 Rear deck 32 Frame Body 37 Air spring (drive means)

Claims (6)

A main frame having a plurality of longitudinal beam members extending in the traveling direction and a plurality of transverse beam members extending in the lateral direction and interconnecting the longitudinal beam members, on which a container is loaded, and a front end portion of the main frame A semi-trailer for container loading in which a king pin connected to the tractor is provided and a traveling wheel is provided on the rear end side,
A deck mounting portion provided at a rear end portion of the main frame;
A container support provided on the front side of the main frame relative to the deck mounting portion;
A rear deck that is mounted on the deck mounting part so as to be movable up and down, and that moves up and guides the cargo unloading vehicle when unloading the luggage into a small container loaded on the container support part;
A container-loading semi-trailer comprising drive means provided in the deck mounting portion and configured to drive the rear deck in a vertical direction.   The semi-trailer for container loading according to claim 1, wherein when a large container having a length longer than that of the small container is loaded on the main frame, the rear deck has a height substantially equal to the upper surface of the container support portion. A semi-trailer for container loading, characterized in that an upper surface is positioned and a rear end portion of the large container is supported by the rear deck.   3. The container-loading semi-trailer according to claim 1 or 2, wherein a support leg is mounted so as to be movable in a vertical direction toward a traveling ground, and the support leg is mounted on the deck when loading / unloading a load in the small container. Semi-trailer for container loading, characterized by supporting the load applied to the part.   The container loading semi-trailer according to any one of claims 1 to 3, wherein a rear transfer plate is provided at the rear end of the rear deck so as to be freely rotatable, and when loading and unloading luggage in the small container. A container-loading semi-trailer that bridges between the platform and the rear deck by the transfer plate.   The container loading semi-trailer according to any one of claims 1 to 4, wherein a front transfer plate is rotatably provided at a front end of the rear deck, and when loading and unloading luggage in the small container, A container-loading semi-trailer that bridges between the rear deck and the floor surface of the small container by a transfer plate.   The container loading semi-trailer according to any one of claims 1 to 5, wherein the rear deck is inclined in a traveling direction of a vehicle under a state in which the rear deck is moved upward. Semi-trailer.

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