Container transportation vehicle

Abstract

To provide a container transportation vehicle that facilitates visual checking of a state of a mechanism located between right and left main girders.SOLUTION: A container transportation vehicle that travels while having a container loaded in a chassis includes: right and left support members that respectively receive right and left main girders of the container; and a mechanism located between the right and left support members. In the support member, a gap is provided between the chassis and the main girders of the container at a position corresponding to the mechanism when viewed in a right and left direction of the chassis.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a container transport vehicle that travels with a container loaded thereon. [Background technology]

[0002] Patent Document 1 discloses a container transport vehicle that carries a container and travels under its own power or is towed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5546167 Summary of the Invention [Problem to be solved by the invention]

[0004] Containers manufactured to be loaded onto container transport vehicles may have left and right main girders on the bottom. The left and right main girders function as guided members that guide the container when it is loaded onto or unloaded from the container transport vehicle, and as support legs that come into contact with the chassis of the container transport vehicle or the ground.

[0005] On the other hand, container transport vehicles are generally equipped with container securing devices that secure the loaded containers at various points to prevent them from moving while the container transport vehicle is traveling. In order to ensure the stability of the containers while the container transport vehicle is traveling, it is important to visually confirm that the containers loaded on the container transport vehicle are secured by the container securing devices.

[0006] However, some container lashing devices lash the container by engaging with locking members located between the left and right main girders at the bottom of the container. The reality is that the container lashing devices located between the left and right main girders are obstructed by the main girders when a container is loaded onto the container transport vehicle, making them difficult to visually check from the left and right sides of the container transport vehicle. Furthermore, the space between the left and right main girders is dimly lit because the girders block light, making it difficult to check whether the container lashing devices are engaged with the container locking members.

[0007] As exemplified by the container securing device described above, when a container is loaded onto a container transport vehicle, the state of the mechanism located between the left and right main girders of the loaded container may be obstructed by the container's main girders, making it difficult to visually check the state of the mechanism.

[0008] An object of the present invention is to provide a container transport vehicle that makes it easy to visually check the state of the mechanism located between the left and right main girders. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides a container transport vehicle that travels with a container loaded on its chassis, comprising left and right support members that respectively support the left and right main girders of the container, and a mechanism located between the left and right support members, and the support members are configured so that a gap is provided between the chassis and the main girders of the container being loaded at a position corresponding to the mechanism when viewed left and right on the chassis. [Effects of the Invention]

[0010] According to the present invention, it is possible to easily visually check the state of the mechanism located between the left and right main beams. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing a container detachment vehicle and a trailer according to an embodiment of the present invention. [Figure 2]FIG. 2 is a plan view of a container for the container detachable vehicle shown in FIG. [Figure 3] FIG. 2 is a side view of a container for the container detachable vehicle shown in FIG. [Figure 4] FIG. 2 is a rear view of the container for the container detachable vehicle shown in FIG. [Figure 5] FIG. 2 is a side view of the container detaching vehicle shown in FIG. [Figure 6] 2 is a diagram showing an example of the configuration of a container fastening device provided on the container loading / unloading vehicle shown in FIG. 1. FIG. [Figure 7] 2 is a diagram showing an example of the configuration of a container fastening device provided on the container loading / unloading vehicle shown in FIG. 1. FIG. [Figure 8] FIG. 2 is a rear view of the jack provided on the container loading / unloading vehicle shown in FIG. 1. [Figure 9] 2 is a side view showing the relationship between a jack provided on the container detachable vehicle shown in FIG. 1 and a drawbar of a trailer approaching the container detachable vehicle and the jack. FIG. [Figure 10] FIG. 2 is a perspective view of the deck of the trailer shown in FIG. 1. [Figure 11] FIG. 2 is a plan view of the container lock of the trailer shown in FIG. 1. [Figure 12] FIG. 2 is a front view of the container lock as seen from the front. [Figure 13] FIG. 12 is a cross-sectional view taken along line AA in FIG. [Figure 14] FIG. 2 is a perspective view of a container securing device of the trailer shown in FIG. 1. [Figure 15] 2 is an explanatory diagram of the operation of the container fastening device of the trailer shown in FIG. 1. [Figure 16] 2 is a side view showing a state in which a container is loaded on the trailer chassis shown in FIG. 1, and an enlarged view of part B in this figure. [Figure 17] FIG. 2 is a cross-sectional view of the deck of the trailer shown in FIG. 1. [Figure 18] This is a diagram showing the process of transferring a container C from a container detachment vehicle to a trailer. [Figure 19]This is a diagram showing the process of transferring a container C from a container detachment vehicle to a trailer. [Figure 20] This is a diagram showing the process of transferring a container C from a container detachment vehicle to a trailer. [Figure 21] This is a diagram showing the process of transferring a container C from a container detachment vehicle to a trailer. [Figure 22] This is a diagram showing the process of transferring a container C from a container detachment vehicle to a trailer. [Figure 23] This is a diagram showing the process of transferring a container C from a container detachment vehicle to a trailer. [Figure 24] FIG. 10 is a diagram showing an example of the configuration of a container fastening device provided on a container detaching vehicle according to a modified example. [Figure 25] FIG. 10 is a diagram showing an example of the configuration of a container fastening device provided on a container detaching vehicle according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] -Container detachable vehicles and trailers- Fig. 1 is a diagram showing a container loader and trailer according to one embodiment of the present invention. In the following description of the embodiment, the left and right in Fig. 1 refer to the front and rear of the container loader, trailer, and container, respectively. Note that this embodiment will be described taking as an example a case where the container loader is used as a tractor towing a trailer.

[0014] 1 is in a state where it is approaching the rear of the container loader / unloader vehicle 100, and a container C is transferred from the container loader / unloader vehicle 100 to the trailer 200 by a loading device 120 mounted on the container loader / unloader vehicle 100, and the loaded container C is transferred to the container loader / unloader vehicle 100. The trailer 200 is coupled to the container loader / unloader vehicle 100 to form a container transport vehicle train together with the container loader / unloader vehicle 100, and travels while being towed by the container loader / unloader vehicle 100. The container loader / unloader vehicle 100 and the trailer 200 are container transport vehicles that travel with a container C loaded on their chassis.

[0015] The container loading / unloading vehicle 100 is a self-propelled vehicle and includes a chassis 110, a loading device 120, and guide rollers 130. The chassis 110 includes a chassis frame 111 connected to the rear of the driver's cab and a subframe 112 supported by the chassis frame 111, although the subframe 112 may be omitted. The loading device 120 loads and unloads containers C onto and from the chassis 110 by sliding and pivoting an L-shaped arm 121 back and forth. The loading device 120 is supported by the chassis 110, or the subframe 112 in this embodiment. A pair of left and right guide rollers 130 are provided at the rear end of the chassis 110, or the subframe 112 in this embodiment, and guide the main girders Cg of the containers C being loaded onto and unloaded from the container loading / unloading vehicle 100.

[0016] -container- FIG. 2 is a plan view of the container C shown in FIG. 1, FIG. 3 is a side view thereof, and FIG. 4 is a rear view thereof.

[0017] The container C loaded on the container detachable vehicle 100 or the trailer 200 is a box-shaped container with an open top, and its rear is formed by a rear gate Cw. The rear gate Cw is a downward-opening type, and its lower part rotates via a hinge at the top to open and close the rear opening of the container C. A pair of left and right main girders Cg extending in the fore-and-aft direction are provided at the bottom of the container C and protrude downward. The left and right main girders Cg are vertically long, rod-shaped members with an H-shaped cross section, and extend parallel to each other in the fore-and-aft direction. The main girders Cg extend the entire length of the container C. These main girders Cg serve as reinforcement materials for the container C, and are supported by the guide rollers 130 of the container detachable vehicle 100 and the support rollers 8 of the trailer 200. Therefore, the left and right spacing between the left and right main girders Cg is set to match the left and right spacing between the guide rollers 130 and the support rollers 8.

[0018] Furthermore, the container C is a container for a container detachable vehicle designed to be loaded onto the container detachable vehicle 100, and the bottom of the container C is provided with left and right engagement members Ce that engage with the container lashing device 140 (Fig. 5) provided on the container detachable vehicle 100. These engagement members Ce are members for locking the container C, and their configuration can be changed as appropriate as long as they have a shape that will engage with the container lashing device 140, but in this embodiment, a cylindrical member (body lock case) that extends in the front and rear directions is used as the engagement members Ce. In this embodiment, a pair of engagement members Ce (two in total), one on the left and one on the right, are provided, and are located between the left and right main girders Cg near the center of the container C in the fore-and-aft direction. The engagement members Ce are open at the front and rear.

[0019] The upper front surface of the container C is provided with a bar-shaped engaging portion Cb that engages with and disengages from the hook of the arm 121. In addition, a pair of left and right support legs Cl are fixed to the front of the bottom of the container C, and a pair of left and right rear rollers Cr, which serve as traveling rollers, are rotatably attached to the rear end of the bottom of the container C. Both the support legs Cl and the rear rollers Cr are positioned outboard in the left-right direction relative to the main girder Cg and protrude downward below the underside of the main girder Cg. When the rear rollers Cr and support legs Cl are in contact with a horizontal surface, the container C is substantially horizontal. However, when the container C is loaded on the chassis 110 of the container loading / unloading vehicle 100, the main girder Cg is supported by the support members 160 (Figure 5), and the support legs Cl and rear rollers Cr are slightly raised above the chassis 110.

[0020] -Container detaching vehicle- Figure 5 is a side view of the container detachment vehicle 100 shown in Figure 1. The container detachment vehicle 100 is equipped with a plurality of various mechanisms such as a cargo handling device 120, a container lashing device 140, and a jack 150. The cargo handling device 120, the container lashing device 140, and the jack 150 are movable mechanisms that operate by themselves or with their associated components.

[0021] Loading equipment The loading / unloading device 120 is a mechanism for lifting a container C onto the vehicle chassis 110 and lowering it from the vehicle chassis 110. The arm 121 of the loading / unloading device 120 is configured to include a dump arm (not shown) and a loading / unloading arm 123. The dump arm is an arm that stands up when the container C is tilted up on the vehicle chassis 110 to dump and unload the cargo of the loaded container C. This dump arm is disposed at the rear of the subframe 112 and is rotatably connected to the rear of the subframe 112 via a shaft 124 that extends in the left-right direction (vehicle width direction). The front-to-rear length of the dump arm is shorter than the front-to-rear length of the subframe 112. The loading / unloading arm 123 is an arm used for loading and unloading the container C, and is rotatably connected to the front (tip) of the dump arm, so that it can rotate back and forth on the vehicle chassis 110. Although detailed illustration is omitted, the loading / unloading arm 123 is composed of a base arm connected to the subframe 112 and a hook arm connected to the tip of the base frame. The hook arm is formed in an L shape with a horizontal portion and an upright portion, and the horizontal portion is slidably inserted into the base arm. A hook 125 for hanging on a container C is provided at the tip (upper end) of the upright portion of the hook arm.

[0022] Although not specifically shown, the upper part of the upright part of the hook arm may be configured to be able to rotate freely back and forth relative to the lower part by a hydraulic cylinder (not shown), and the height and front-to-back position of the hook 125 may be changed on this rotation path. Also, in this embodiment, a configuration in which the hook arm slides relative to the base arm is exemplified, but the hook arm may also be configured to rotate instead of sliding relative to the base arm. Also, the loading / unloading arm 123 may not be divided into a base arm and a hook arm, but may be configured as an integrated L-shaped arm.

[0023] In the container loading / unloading vehicle 100 of this embodiment, when loading or unloading the container C, only the loading / unloading arm 123 rotates back and forth while the dump arm remains in a horizontal position, and when dumping, the dump arm rotates integrally with the loading / unloading arm 123. To enable this movement, a dump lock device (not shown) is provided that locks or unlocks the loading / unloading arm 123 relative to the dump arm.

[0024] The dump truck lock device comprises a lock pin and a lock hook that can be engaged with and disengaged from the lock pin. The lock pin is provided at the tip of the dump truck arm, and the lock hooks are rotatably provided on both sides of the base arm of the loading / unloading arm 123. The lock hook is engaged with and disengaged from the lock pin by utilizing the sliding movement of the hook arm relative to the base arm. For example, the lock hook is subjected to a force from a spring or the like in the direction that engages with the lock pin, and when the hook arm slides near the rear end, the hook arm pushes the operating rod, causing the lock hook to disengage from the lock pin.

[0025] In this case, when the hook arm retreats near the rear end, the lock between the loading / unloading arm 123 and the dump arm is released, and the extension and contraction of a lift cylinder (not shown) that drives the arm 121 causes the loading / unloading arm 123 to rotate back and forth relative to the dump arm. Conversely, when the hook arm moves forward, the loading / unloading arm 123 and the dump arm are locked, and when the lift cylinder extends and contracts in this state, the dump arm tilts up and down together with the loading / unloading arm 123. The configuration of such a dump lock device is described in Japanese Patent No. 5284541, etc.

[0026] ·Container securing equipment The container lashing device 140 is a mechanism for securing the container C loaded on the chassis 110. Figures 6 and 7 show an example of the configuration of the container lashing device 140. Figure 6 shows the container lashing device 140 in an unlocked state, and Figure 7 shows the container lashing device 140 in a locked state.

[0027] The container lashing device 140 of this embodiment is equipped with a jump-up prevention piece 141 and a lock sensor 142. The jump-up prevention piece 141 is a member that engages with and disengages from the engaging member Ce of the container C loaded on the container loading / unloading vehicle 100, and in this embodiment is configured in an L-shape with a claw 141b and a post 141c that supports the claw 141b. In this embodiment, the post 141c is fixed to the chassis 110 (subframe 112) by welding or the like. The claw 141b is supported on the upper part of the post 141c with its tip extending horizontally rearward. The lock sensor 142 is configured by a proximity sensor or a limit switch, and is fixed to the post 141c of the jump-up prevention piece 141. A bracket 143 is fixed to the post 141c of the jump-up prevention piece 141, and an L-shaped swinging member 145 is rotatably connected to the bracket 143 via a rotation shaft 144.

[0028] For example, when a container C is loaded onto the chassis 110, it is pulled by the arm 121 and slides forward on the support member 160 on the chassis 110, and as can be seen from FIGS. 6 and 7, the engaging member Ce provided at the bottom of the container C covers the claw 141b of the anti-jump piece 141. In this way, the claw 141b is inserted into the engaging member Ce, thereby preventing the container C from jumping up from the chassis 110 while traveling, etc. In addition, when the engaging member Ce covers the claw 141b, it pushes the swinging member 145. This causes the swinging member 145 to rotate, and a part of the swinging member 145 interferes with the detection area of ​​the lock sensor 142. As a result, the swinging member 145 is detected by the lock sensor 142, and it is detected that the engaging member Ce of the container C is in a state of being fastened by the container lashing device 140.

[0029] As described above, when a container C is loaded on the chassis 110 of the container loading / unloading vehicle 100, the main girders Cg are supported by multiple support members 160 ( FIG. 5 ). The support members 160 are provided on the left and right sides of the subframe 112, protruding upward from the upper surface of the subframe 112. Furthermore, multiple (three in the example of FIG. 5 ) support members 160 are arranged at intervals in the front-rear direction on the left and right sides of the subframe 112. These support members 160 function as pedestals, and when a container C is seated on the multiple pedestals at the main girders Cg, a gap G1 is ensured between the chassis 110 (subframe 112) and the container C (main girders Cg) between adjacent pedestals (i.e., support members 160) in the front-rear direction. In this embodiment, these support members 160 as pedestals are, for example, pads having a sliding surface (upper surface) made of resin, and have the function of sliding the main girders Cg of the container C back and forth when loading or unloading the container C.

[0030] The container lashing device 140 is one of the mechanisms located between the left and right support members 160, and is located between the left and right main girders Cg of the container C when the container C is loaded on the chassis 110. The multiple support members 160 are arranged to avoid positions corresponding to the container lashing devices 140 when viewed in the left-right direction of the chassis 110, and are configured to ensure the above-mentioned see-through gap G1 between the chassis 110 (subframe 112) and the bottom surfaces of the main girders Cg of the container C to be loaded, at positions corresponding to the container lashing devices 140 when viewed in the left-right direction of the chassis 110. As shown in Figures 6 and 7, parts of the left and right container lashing devices 140 can be visually confirmed from the left and right sides of the chassis 110 through this gap G1. In this embodiment, as shown in FIG. 6, when the container lashing device 140 is not engaged with the engaging members Ce of the container C, the lower part of the swinging member 145 described above is horizontal and hardly faces the gap G1. However, as shown in FIG. 7, when the container lashing device 140 engages with the engaging members Ce of the container C, the swinging member 145 tilts and the lower part of the swinging member 145 faces the gap G1. The tilted state of the swinging member 145, that is, the fact that the container lashing device 140 and the engaging members Ce are engaged with each other, can be clearly visually confirmed from the gap G1.

[0031] In this embodiment, an example has been described in which the container fastening device 140 is visually confirmed through the gap G1, but the container loading / unloading vehicle 100 is also provided with, for example, the dump lock device of the cargo handling device 120 as a mechanism located between the left and right support members 160. It is also possible to ensure the gap G1 so that the operating state of this dump lock device can be visually confirmed.

[0032] ·jack The jack 150 is a support device that prevents the rear of the chassis 110 from sinking when the container C is loaded or unloaded by the cargo handling device 120 or when the container C is dumped up. Figures 8 and 9 show an example of the configuration of the jack 150. Figure 8 is a view of the jack 150 as seen from the rear, and Figure 9 is a side view showing the interaction between the jack 150 and the drawbar 5 of the trailer 200 approaching the container loading / unloading vehicle 100.

[0033] 8 and 9 is a device for preventing the rear of the chassis 110 from sinking, and is disposed below the rear of the chassis 110. The jack 150 is a roller jack that includes an arm 151 and a roller 152 and that contacts the ground with the roller 152 when the chassis 110 sinks, but may also be a general jack that does not have a roller on the contact part.

[0034] The arm 151 is rotatably supported on a bracket 154 via a shaft 153. The bracket 154 is a support structure appropriately connected to the rear of the chassis 110 (subframe 112). The shaft 153 connecting the bracket 154 and the arm 151 is located below the chassis 110 (subframe 112). The roller 152 is a cylindrical member extending in the left and right directions, and is rotatably supported at the tip of the arm 151 via a shaft 155 extending in the left and right directions. In this embodiment, the length of the roller 152, i.e., the dimension in the vehicle width direction, is longer than the diameter of the roller 152 but smaller than the width W1 of the subframe 112 in the vehicle width direction.

[0035] The jack 150 is equipped with a hydraulic cylinder, and is configured to rotate the arm 151 using the hydraulic cylinder 158 (shown by a two-dot chain line in FIG. 8). The hydraulic cylinder 158 connects a reinforcing rib 156 provided on the bracket 154 to a member 157 connecting the left and right arms 151, thereby rotating the arm 151 relative to the chassis 110. The arm 151 can be displaced between a working position (shown by a solid line in FIG. 9) in which it extends downward and a storage position (shown by a two-dot chain line in FIG. 9) in which it extends forward. In the storage position, the arm 151 may extend rearward. When the arm 151 is in the storage position, the legal departure angle of the container loading / unloading vehicle 100 is ensured. The jack 150 is positioned rearward within a range that ensures the legal departure angle. By displacing the arm 151 to the working position, the roller 152 moves to a position where it is in contact with the ground or is slightly (for example, by a few centimeters) away from the ground. For example, when loading a container C onto the chassis 110, if the container C leans against it and pushes down the rear of the chassis 110, the jack 150 will come into contact with the ground via the rollers 152. The jack 150 braces itself between the chassis 110 and the ground, preventing the rear of the chassis 110 from sinking when the container C is loaded or unloaded.

[0036] In this embodiment, the shaft 153 that is the rotation center of the arm 151 is located forward of the shaft 124 (FIG. 5) of the dump arm, and the roller 152 is configured to be located forward of the shaft 124 even in the working posture. However, the shaft 153 is located rearward of the axle of the rear wheel (rearmost wheel) of the container loading / unloading vehicle 100.

[0037] In this embodiment, as shown in FIG. 8 , two jacks 150 having the above configuration are provided. One is provided on the left side of the chassis 110, and the other is provided on the right side. These left and right jacks 150 are arranged on both the left and right sides of the chassis 110 with a gap between them. The gap W2 between the left and right jacks 150, specifically the distance between the opposing end faces of the left and right rollers 152, is greater than the width of the arm 121 of the loading device 120 in the vehicle width direction and is also greater than the width W3 of the draw bar 5 of the trailer 200 in the vehicle width direction. Although not shown, the draw bar 5 has a narrower width in the vehicle width direction at its tip (the portion connected to the tractor, specifically the front portion 32) than at its base portion 31 (the portion connected to the chassis 4 of the trailer 200) to ensure a lateral swing angle relative to the tractor to which it is connected. The width W3 is the width of the tip of the front portion 32 of the draw bar 5. In this embodiment, the interval W2 is narrower than the maximum width of the drawbar 5 (for example, the width of the connecting portion of the base 31 with the chassis 4 in the vehicle width direction).

[0038] -Trailer- Figure 10 is a perspective view of the deck of the trailer 200. As shown in Figures 10, 9, etc., the trailer 200 is equipped with a chassis 4 having front wheels 2 and rear wheels 3 and for loading a container C, and a drawbar 5 provided at the front of the chassis 4 and connected to the container loading / unloading vehicle 100. One container C can be loaded onto the trailer 200 from the front.

[0039] The chassis 4 includes a trailer frame 6, a running surface 7, support rollers 8, and roller pits 9. The trailer frame 6, running surface 7, support rollers 8, and roller pits 9 are provided in pairs on the left and right sides.

[0040] The left and right trailer frames 6 are, for example, rod-shaped members made of high-strength steel material with an I-shaped cross section and extending in the front-to-rear direction. The left and right trailer frames 6 are connected by multiple cross members 6a arranged at intervals in the front-to-rear direction.

[0041] A turning mechanism 10, which is called a turntable, dolly, or the like, that can rotate freely around a vertical axis of rotation, is provided on the underside of the front of the trailer frame 6. The front wheels 2 are connected to the bottom of this turning mechanism 10 via a suspension, and the front wheels 2 can swing left and right in the horizontal direction relative to the trailer frame 6. The rear wheels 3 are also connected to the underside of the rear of the trailer frame 6 via a suspension. The orientation of the rear wheels 3 relative to the trailer frame 6 is constant. In this embodiment, of the front wheels 2 and rear wheels 3, only the front wheels 2 swing left and right, but this can be changed as appropriate depending on the vehicle class, etc.

[0042] A deck 15 extending in the front-to-rear direction is supported on the upper part of each of the left and right trailer frames 6. The deck 15 is a member on which rear rollers Cr provided at the rear of the container C run when the container C is loaded onto or unloaded from the trailer 200, and its thickness varies depending on the position in the front-to-rear direction. Specifically, the lower surface of the deck 15 is flush, while the height of the upper surface varies depending on the position in the front-to-rear direction. The front portion 16 of the deck 15 is thinner in the up-down direction than the main body portion 17 located further rearward, and the upper surface of the front portion 16 is lower in height than the upper surface of the main body portion 17.

[0043] The upper surface of the main body 17 of the deck 15 is the running surface 7. This running surface 7 forms the road surface on which the rear rollers Cr of the container C run when loading and unloading the container C. The running surface 7 also has a slope 7a at its front end that slopes downward toward the front. This slope 7a is connected to the upper surface of the front part 16 of the deck 15. The slope 7a is located rearward of the claws 23j of the container lock 23 (described later), and at least a portion of the slope 7a is located rearward of the leading edge of the front wheel 2. In this embodiment, the entire slope 7a is located rearward of the leading edge of the front wheel 2, and most of the slope 7a (more than half) is located rearward of the rotation center of the front wheel 2. The running surface 7 also has a slope 7b at its rear end that slopes downward toward the roller pit 9. The slopes 7a and 7b are gentle slopes with an inclination angle (the angle formed with respect to the running surface 7 excluding the slopes 7a and 7b) of 45 degrees or less (for example, about 10 degrees). The traveling surface 7 excluding the slopes 7a and 7b is horizontal when the trailer 200 is placed on level ground. Rear roller guides 11 that guide the rear rollers Cr of the container C traveling on the traveling surface 7 are provided to protrude upward from the inner lateral edges of the left and right traveling surfaces 7.

[0044] The left and right support rollers 8 are rollers that support the main girders Cg of the container C loaded on the trailer 200. These support rollers 8 are arranged between the left and right running surfaces 7 so that their rotation axes (rotation center lines) are located forward of the leading edges of the roller pits 9. In this embodiment, all of the support rollers 8 are located forward of the leading edges of the roller pits 9, and all or some (some in this embodiment) of the support rollers 8 are located forward of the rear edges of the rear wheels 3.

[0045] The roller pit 9 is a space (for example, a hole or depression) into which the rear rollers Cr of the container C fall after traveling over the traveling surface 7, and is adjacent to the rear end of the traveling surface 7, i.e., the rear side of the rear end of the slope 7b. A roller stopper 21 that acts as a stopper for the rear rollers Cr of the container C is provided on the rear side of the roller pit 9. The roller stopper 21 is provided on the front side of the cross member 19 that connects the rear ends of the left and right trailer frames 6.

[0046] The left and right running surfaces 7 are provided on their inner left-right edges with left and right pedestals 18, one at the front and one at the back, on which the main girders Cg of the container C rest. The pedestals 18 are part of the rear roller guide 11. The left pedestal 18 and the left support roller 8 are positioned on the same straight line extending parallel to the running surfaces 7. Similarly, the right pedestal 18 and the right support roller 8 are positioned on the same straight line extending parallel to the running surfaces 7.

[0047] Further, a container lashing device 40 for lashing down a container C is attached to the cross member 6a. In this embodiment, a pair of container lashing devices 40 (two in total) are provided, one on each side. Further, a container lock 23 that is operated by air pressure, for example, is provided between the front portions 16 of the left and right decks 15. The detailed configurations of the container lock 23 and the container lashing devices 40 will be described later.

[0048] Additionally, the trailer 200 may be provided with a movable front stopper 22 that holds down the front of the loaded container C. The front stopper 22 is supported so as to be rotatable up and down relative to a cross member that connects the front ends of the left and right trailer frames 6, and can be displaced to an unlocked position where it is tilted forward, and to a locked position where it is raised upward. Figure 10 shows the front stopper 22 in the locked position.

[0049] -Drawbar- The drawbar 5 (FIG. 9) is a connecting member that is connected to the connecting portion at the rear of a tractor such as the container loader / loader vehicle 100 in order to connect the trailer 200 to the tractor. For example, as shown in FIG. 9, the drawbar 5 has a base portion 31 that is connected to the chassis 4 (e.g., the trailer frame 6) so as to be able to swing up and down, and a front portion 32 that is connected above the base portion 31 so as to be able to swing up and down. When connecting the drawbar 5 to the container loader / loader vehicle 100, the base portion 31 and the front portion 32 extend forward, and the front portion 32 is positioned at approximately the same height as the chassis 110 of the container loader / loader vehicle 100, ensuring sufficient length in the front-to-rear direction. On the other hand, when transferring a container C between the container loader / loader vehicle 100 and the trailer 200, the base portion 31 faces downward, and the front portion 32 is bent forward from the tip of the base portion 31, as shown in FIG. 9, and the front portion 32 is lowered to near the ground.

[0050] -Container Lock- Fig. 11 is a plan view of the container lock 23 described above, Fig. 12 is a front view of the container lock 23 as seen from the front (the lower side in Fig. 11), and Fig. 13 is a cross-sectional view taken along line AA in Fig. 11. The left-right direction in Figs. 11 to 13 corresponds to the left-right direction of the trailer 200, the container detachable vehicle 100, and the container C, and corresponds to the direction perpendicular to the plane of the paper in Fig. 1. In Figs. 11 to 13, the container lock 23 is shown in perspective through its exterior cover 23x (Fig. 10).

[0051] The container lock 23 is located between the front parts 16 of the left and right decks 15 of the chassis 4, and regulates the vertical movement of the container C. The container lock 23 includes a base 23a, a cylinder 23b, a bell crank 23c, a first shaft 23d, a bell crank 23e, an arm 23f, a bell crank 23g, a second shaft 23h, a link 23i, and a claw 23j.

[0052] The base 23a is supported by a cross member 6a located at the front of the trailer 200. The cylinder 23b is a pneumatic cylinder that extends left and right, and one end of the cylinder 23b is connected to the base 23a via a bracket 23k so as to be rotatable up and down. A hydraulic cylinder may also be used for the cylinder 23b. The other end of the cylinder 23b is connected via a bell crank 23c to a first shaft 23d that is rotatably supported on the base 23a. The extension and contraction of the cylinder 23b causes the first shaft 23d to rotate.

[0053] Furthermore, arm 23f, also called a "snake neck," which is partially U-shaped, is connected to first shaft 23d via bell crank 23e. The tip of bell crank 23e is rotatably connected to one end of arm 23f via pin 23l. Arm 23f extends left and right (in a direction perpendicular to first shaft 23d) and straddles first shaft 23d at its U-shaped portion. The other end of arm 23f is connected via bell crank 23g to second shaft 23h, which is rotatably supported on base 23a. Arm 23f and bell crank 23g are rotatably connected via pin 23m. Left and right claws 23j, which are rotatably connected to base 23a left and right, are connected to second shaft 23h via left and right links 23i, respectively.

[0054] With this configuration, when the cylinder 23b extends and the first shaft 23d rotates in one direction (the direction of arrow R1 in FIG. 13), the rotation of the first shaft 23d is transmitted to the second shaft 23h via the bell crank 23e and the arm 23f, causing the second shaft 23h to rotate in one direction (the direction opposite to the arrow R2 in FIG. 13). Furthermore, the rotation of the second shaft 23h is transmitted to the left and right claws 23j via the left and right links 23i, causing the left and right claws 23j to rotate outward in the left and right directions (the vehicle width direction), respectively, and protrude outward from the exterior cover (FIG. 10) (resulting in the states shown in FIGS. 10 to 13). The protruding claws 23j on the left and right engage with claw holes (not shown) provided on the opposing side surfaces of the left and right main girders Cg of the container C loaded on the trailer 200, restricting the up-down, front-back, and left-right movement of the container C.

[0055] Conversely, when the cylinder 23b contracts and the first shaft 23d rotates in the other direction (the direction opposite to the arrow R1 in FIG. 13), the rotation of the first shaft 23d is transmitted to the second shaft 23h via the bell crank 23e and the arm 23f, causing the second shaft 23h to rotate in the other direction (arrow R2 in FIG. 13). Furthermore, the rotation of the second shaft 23h is transmitted to the left and right claws 23j via the left and right links 23i, causing the left and right claws 23j to rotate inward in the left and right directions (vehicle width directions) from the states shown in FIGS. 10 to 13, and the left and right claws 23j are retracted into the exterior cover 23x (FIG. 10). When the left and right claws 23j are retracted with a container C loaded on the trailer 200, the left and right claws 23j disengage from the claw holes (not shown) in the left and right main girders Cg of the container C, and the container C is released from restraint by the container lock 23.

[0056] In this state, when the claws 23j protrude to the left and right, as shown in FIG. 13, a plane S passing through the center lines of the pins 23l and 23m at both ends of the arm 23f is located below the center of the first shaft 23d. Therefore, the force transmitted from the second shaft 23h rotating in the direction of arrow R2 to the first shaft 23d is converted into a force that rotates the first shaft 23d in the direction of arrow R1. As described above, in order for the second shaft 23h to rotate in the direction of arrow R2, the first shaft 23d must structurally rotate in the opposite direction to the direction of arrow R1. Therefore, the rotational force of the first shaft 23d in the direction of arrow R1 resists the force that rotates the second shaft 23h in the direction of arrow R2. As a result, even if an upward external force F ( FIG. 13 ) acts on the claws 23j from the container C, for example, the rotation of the second shaft 23h in the direction of arrow R2 is restricted, preventing the claws 23j from tipping inward and detaching from the container C.

[0057] -Container securing device- Fig. 14 is a perspective view of the container lashing device 40, and Fig. 15 is an explanatory diagram of the operation of the container lashing device 40. Figs. 14 and 15 show the left-side container lashing device 40, but the right-side container lashing device 40 may have a symmetrical configuration or the same configuration as the left-side container lashing device 40.

[0058] The container lashing device 40 is a member that restricts the up-down and left-right movement of the container C loaded on the trailer 200, and is equipped with a support 41, a rod 42, a jump prevention piece (locking member) 43, a cylinder 44, and a guide 45. The container C that is loaded onto the container loader / detacher vehicle 100 from the front side (the engaging portion Cb side) does not have a hole on the back side through which the jump prevention piece is inserted, but instead is equipped with an engaging member Ce that receives from the front a rear-facing claw 141b of the jump prevention piece 141 provided on the container loader / detacher vehicle 100, as shown in Figure 7. The container lashing device 40 of the trailer 200 engages with this engaging member Ce of the container C.

[0059] The support 41 is attached to the trailer 200, which is a base for loading the container C. Specifically, the support 41 is fixed to a cross member 6a located near the center of the trailer 200 in the fore-and-aft direction, for example. In this embodiment, a cylindrical member is used for the support 41. Two cylindrical supports 41 are arranged in the front and rear direction, each fixed to two cross members 6a arranged in the front and rear, and the rod 42 is inserted into these supports 41 and supported so as to be slidable in the direction in which the container C is loaded (the loading and unloading direction, i.e., the fore-and-aft direction). A stopper 41a is attached to the cross member 6a to which the front support 41 is attached, separately from the front support 41. The front support 41 and the stopper 41a may be attached to different cross members 6a. The stopper 41a has a hook 41b that engages with the protrusion 43d of the anti-jump piece 43.

[0060] The anti-jumping piece 43 is a locking member that engages with and disengages from the engaging member Ce of the container C loaded on the trailer 200 and is supported on the rod 42 via a rotating shaft 43a. In this embodiment, the anti-jumping piece 43 is configured in an L-shape with a claw 43b and a post 43c that supports the claw 43b. In this embodiment, the anti-jumping piece 43 is illustrated as a locking member, but the shape of the locking member can be modified as needed, for example, into a rod shape or a block shape depending on the shape of the engaging member Ce. The rotating shaft 43a supports the lower part of the post 43c, and the claw 43b is supported by the upper part of the post 43c. When the anti-jumping piece 43 assumes an upright position with the post 43c raised, the claw 43b rises in an arc orbit centered on the rotating shaft 43a, displaces to a locked position, and transforms into a horizontal position with its tip facing forward, as shown in FIG. 15 . When the anti-jumping piece 43 assumes a lying-down position with the post 43c tilted down, the claw 43b descends in an arcuate path centered on the rotation axis 43a, displacing to the release position and transforming into an inclined position with the tip pointing downward as shown in Figure 14. When in the locked position, the anti-jumping piece 43 is inserted into and engages with the engaging member Ce of the container C being loaded onto the chassis 4 from the front, restricting the up, down, left, and right movement of the loaded container C. In addition, the anti-jumping piece 43 is biased in the upright direction by a spring (for example, a torsion spring) not shown, and is subjected to a force that attempts to displace it to the locked position.

[0061] One end of the cylinder 44 is supported via a bracket 44a on a cross member 6a different from the cross member 6a that supports the support 41, and the other end is connected to the rod 42. As a result, when the cylinder 44 extends and retracts, the rod 42 and the anti-jump piece 43 attached thereto slide back and forth while being guided by the support 41. The cylinder 44 can be a hydraulic cylinder, but in this embodiment it is a pneumatic cylinder.

[0062] The guide 45 is a member that abuts against the anti-jumping piece 43 that slides together with the rod 42 to rotate the anti-jumping piece 43, and is fixed to, for example, the cross member 6a. In this embodiment, the guide 45 is provided with a pressure roller 45a, and a configuration is adopted in which the pressure roller 45a presses down the anti-jumping piece 43. In the state shown in FIG. 14 (when the cylinder 44 is contracted), the anti-jumping piece 43 is biased by a spring in a direction in which the post 43c stands up, and the pressure roller 45a of the guide 45 presses down the post 43c in a lying position. When the cylinder 44 is extended as shown by the straight arrow in FIG. 15 and the anti-jumping piece 43 moves toward the engaging member Ce of the container C loaded on the trailer 200 (i.e., moves forward), the anti-jumping piece 43 is released from the guide 45 (disengages from the guide 45) and stands up as shown by the arc arrow (displaced to the locked position). When the protrusion 43d of the anti-jumping piece 43 engages with the hook 41b of the stopper 41a and restricts rotation, the post 43c is locked in an upright position, and the claw 43b is firmly inserted from behind into the engaging member Ce of the container C loaded on the trailer 200.

[0063] In this embodiment, the anti-jumping piece 43 is configured to stand up by a spring, but it may also be configured to stand up by its own weight by setting the position of the center of gravity relative to the rotation shaft 43a. In this case, as with the above, the anti-jumping piece 43 stands up when the cylinder 44 extends and is released from the guide 45. Conversely, the anti-jumping piece 43 may also be configured to fall forward, for example, by a spring or by its own weight. For example, a guide member (roller, etc.) that abuts against the anti-jumping piece 43 as it moves may be provided, so that when the cylinder 44 extends, the anti-jumping piece 43 hits the guide member and stands up, and when the cylinder 44 retracts, the anti-jumping piece 43 is freed and falls down.

[0064] The container securing device 40 is configured in such a way that the combination of the translational movement associated with the sliding of the rod 42 and the rotational movement around the rotation axis 43a causes the anti-jump piece 43 to move translationally toward the engaging member Ce of the container C, rise up, and engage with the engaging member Ce.

[0065] -Rear roller guide- FIG. 16(a) is a side view showing a state in which a container is loaded on the trailer chassis shown in FIG. 1, and FIGS. 16(b) and 16(c) are enlarged views of portion B in FIG. 16(a). FIG. 16(b) shows a state in which the anti-jumping piece 43 of the container lashing device 40 is engaged with the engaging member Ce of the container C, and FIG. 16(c) shows a state in which the anti-jumping piece 43 and the engaging member Ce are not engaged. FIGS. 16(a) to 16(c) are views seen from the left side of the chassis 4. The left and right rear roller guides 11 are members that guide the left and right rear rollers Cr of the container C traveling on the left and right decks 15, and extend longitudinally along the running surface 7 of the corresponding deck 15. The left and right rear roller guides 11 protrude upward from the running surface 7 on the inner side of the corresponding deck 15 in the vehicle width direction, and guide the inner portion of the rear roller Cr of the container C in the vehicle width direction (FIG. 17). As described above, a portion of the left and right rear roller guides 11 constitutes the bases 18 on which the left and right main girders Cg of the container C are seated, i.e., the left and right support members that respectively support the left and right main girders Cg of the container C. As with the container loading / unloading vehicle 100, the trailer 200 also has, between the left and right rear roller guides 11, which are these support members, mechanisms that should be visually confirmed, such as the container fastening device 40.

[0066] The left and right rear roller guides 11 each have a front and rear portion that constitute a pedestal 18. In addition to the front and rear pedestals 18, the left and right rear roller guides 11 are configured to include an intermediate portion 12 that is located between the front and rear pedestals 18 and that protrudes less from the running surface 7 of the deck 15 than the front and rear pedestals 18. The intermediate portion 12 corresponds to the position of the center portion in the fore-and-aft direction of the main girder Cg, which may bend downward due to the weight of the container C, etc., and serves as a relief that ensures that the front and rear portions of the main girder Cg of the container C are securely seated on the pedestal 18 even when the center portion is bent downward. In this embodiment, a notch 13 is provided in the intermediate portion 12. The notch 13 is a portion where at least the upper portion of the intermediate portion 12 is cut out, and enlarges the gap G2 secured between the bottom surface of the main girder Cg of the container C seated on the pedestal 18 and the chassis 4 (the running surface 7 of the deck 15). In this embodiment, the intermediate portion 12 is divided by a notch 13, and the vertical dimensions of the gap G2 are equal to the protruding height of the base 18 from the running surface 7.

[0067] As shown in Figures 16(a) to 16(c), the notches 13 are positioned to correspond to the installation positions of the container lashing devices 40 (for example, the positions where the anti-jumping pieces 43 engage with the engaging members Ce of the container C) when viewed in the left-right direction of the chassis 4. Therefore, the left and right container lashing devices 40 can be observed from the left and right sides of the chassis 4 through the gap G2 secured by the notches 13, and the state in which the anti-jumping pieces 43 engage with the engaging members Ce of the container C can be visually confirmed. In Figure 16(b), it is clear at a glance that the anti-jumping pieces 43 are standing up and facing the portion of the gap G2 enlarged by the notches 13. In Figure 16(c), it is clear at a glance that the anti-jumping pieces 43 have fallen down and moved from the portion of the gap G2 enlarged by the notches 13.

[0068] -From the deck- Figure 17 is a cross-sectional view of the deck of the trailer shown in Figure 1. Figure 17 shows a cross-section of the deck 15 at a position corresponding to the base 18. As shown in Figure 17, the deck 15 has a structure in which flat plates (flat bars) 15a that make up the running surface 7 are supported by supports 15b that are spaced apart in the fore-and-aft direction in the same manner as the cross members 6a. Each support 15b is fixed by welding or the like to the side of the frame 6b that supports the rear roller guide 11. The frame 6b is a hollow square steel pipe that makes up part of the trailer frame 6, and is located below the rear roller guide 11, extending fore-and-aft along the rear roller guide 11.

[0069] Furthermore, the upper surface of each support 15b is generally horizontal, while the lower surface is inclined upward toward the outside in the vehicle width direction, and is formed so that the vertical dimension decreases toward the tip (toward the outside in the vehicle width direction). This makes the deck 15 lighter than if the vertical dimensions of the supports 15b were uniform. The tip surface of each support 15b is welded to a side cover 15d of the deck 15. The shape of the side cover 15d is not particularly limited, but in the example of Figure 17, it is formed from a channel (channel steel) with a U-shaped cross section. The rib 15c extends in the front-rear direction along the flat plate 15a.

[0070] The flat plate 15a is reinforced by ribs 15c provided on the back side (lower surface) of the running surface 7. The shape of the ribs 15c is not particularly limited, but in the example of FIG. 17, an angle (angle iron) is used for the ribs 15c, and they are welded to the center of the back surface of the flat plate 15a in the vehicle width direction with their apex angle pointing downward. The ribs 15c extend in the front-rear direction along the flat plate 15a. The back surface of the flat plate 15a is supported by supports 15b and is bridged between the side cover 15d and the frame 6b. The back surface is welded to the support 15b, the outer end surface in the vehicle width direction is welded to the side cover 15d, and the inner end surface in the vehicle width direction is welded to the rear roller guide 11. At this time, the flat plate 15a is arranged with a gap between it and the rear roller guide 11, a groove surrounded by the flat plate 15a, the rear roller guide 11, and the frame 6b forms a groove, and weld metal 15e joining the flat plate 15a and the rear roller guide 11 is contained in the groove. In this way, the weld metal 15e is configured not to protrude above the running surface 7, and consideration is given to preventing the weld metal 15e from interfering with the rear roller Cr (two-dot chain line in FIG. 17) of the container C running on the running surface 7.

[0071] -Procedure for loading containers onto trailers- 18 to 23 are diagrams showing the process of transferring a container C from the container detachable vehicle 100 to the trailer 200. As an example, the procedure for loading a container C by the container detachable vehicle 100 onto an empty trailer 200 that has been towed by a tractor to a loading work site will be described with reference to Fig. 1 and Figs. 18 to 23.

[0072] When loading a container C onto the trailer 200, the drawbar 5 of the trailer 200 is bent into an L shape as shown in Fig. 1, the container loader / detacher vehicle 100 loaded with the container C is brought close to the front of the trailer 200, and the container loader / detacher vehicle 100 and the trailer 200 are lined up in tandem facing in the same direction. In this state, the rear of the container loader / detacher vehicle 100 and the front of the trailer 200 face each other.

[0073] After arranging the container loading / unloading vehicle 100 and the trailer 200 in tandem as shown in Figure 1, it is confirmed that the anti-jumping piece 43 of the container securing device 40 of the trailer 200 is in the release position, and if the anti-jumping piece 43 is in the lock position, the cylinder 44 is retracted to displace the anti-jumping piece 43 to the release position. Also, the jack 150 is lowered. Then, as shown in Figure 18, the arm 121 of the loading / unloading device 120 pushes the container C rearward. The container C slides rearward on the container loading / unloading vehicle 100, guided by the guide rollers 130 along the main girder Cg.

[0074] After sliding the container C rearward, the arm 121 (loading / unloading arm 123) of the cargo handling device 120 is rotated rearward as shown in Figure 19, causing the container C to come into contact with the trailer 200. The container C moves rearward with its front part lifted up, using the guide roller 130 as a fulcrum, and first makes contact with the running surface 7 of the trailer 200 with its rear roller Cr. At this time, the rear roller Cr of the container C lands on the slope 7a on the front side of the running surface 7 as the arm 121 starts to rotate (Figure 19).

[0075] Thereafter, when the arm 121 of the cargo handling device 120 swings further backward, the rear roller Cr of the container C travels on the travel surface 7 of the trailer 200 and moves backward as shown in FIG.

[0076] When the rear rollers Cr of the container C travel to the rear end on the running surface 7, they drop into the roller pit 9 (Fig. 10) as shown in Fig. 21, and at the same time, the main girders Cg of the container C are supported by the support rollers 8 of the trailer 200. The support point at the rear of the container C is changed from the rear rollers Cr to the support rollers 8, and even when the rear rollers Cr pass the running surface 7, the support point at the rear of the container C remains within the range of the running surface 7.

[0077] Finally, the container C reaches a state where its main girders Cg are seated on the pedestal 18 (Fig. 22). Once the main girders Cg of the container C are seated on the pedestal 18, the cylinders 44 of the container securing devices 40 are extended and the anti-jump pieces 43 are inserted into the engaging members Ce of the container C, restricting the up-down, down-down, front-back, left-right movement of the container C (Fig. 23). Furthermore, by fixing the front of the container C with the claws 23j of the container locks 23, the up-down, front-back, left-right movement of the container C relative to the trailer 200 is restricted. In addition, the front stopper 22 is raised (Fig. 23), restraining the front of the container C and further firmly restricting the fore-and-aft movement of the container C.

[0078] Once the container C has been transferred onto the trailer 200 in this manner, the connection between the arm 121 and the container C is released, and the container loading / unloading vehicle 100 is moved forward.

[0079] When connecting a trailer to the container loader / unloader vehicle 100 or another container loader / unloader vehicle 100, the drawbar 5 is returned to a position in which it extends straight forward, and the drawbar 5 is connected to the container loader / unloader vehicle 100.

[0080] The procedure for unloading the container C from the trailer 200 is generally the reverse of the above procedure.

[0081] -effect- (1) In the container detachable vehicle 100, which is a container transport vehicle traveling with a container C loaded, a see-through gap G1 is secured by the support member 160 between the bottom surface of the main girder Cg of the container C and the chassis 110 at a position corresponding to the container lashing device 140 and other mechanisms located between the left and right main girders Cg of the loaded container C when viewed from the left and right. This allows the operating status of the container lashing device 140 and other mechanisms to be visually confirmed from the left and right sides of the container detachable vehicle 100 through the gap G1. In addition, the container lashing device 140 and its vicinity are illuminated by light that enters through the gap G1 corresponding to the position of the container lashing device 140. Therefore, when viewed from the rear of the container detachable vehicle 100, only the area around the container lashing device 140 appears bright in the dimly lit space shielded by the left and right main girders Cg. Therefore, the operating status of the container lashing device 140 can be easily confirmed not only from the left and right sides of the container detachable vehicle 100 but also from the rear.

[0082] Similarly, in the trailer 200, which is a container transport vehicle, a see-through gap G2 is secured by the rear roller guide 11, which is a support member, between the bottom surface of the main girder Cg of the container C and the chassis 4 at a position corresponding to the container lashing device 40 and other mechanisms located between the left and right main girders Cg of the loaded container C when viewed from the left and right, so that the operating status of the container lashing device 40 and other devices can be visually confirmed from the left and right sides of the trailer 200 through the gap G2. In addition, the light that shines through the gap G2 illuminates the container lashing device 40 and its vicinity, making it easy to check the operating status of the container lashing device 40 even from the rear of the container C.

[0083] In this way, according to this embodiment, it is possible to easily visually check the state of the mechanism located between the left and right main girders Cg.

[0084] (2) In addition, in the trailer 200, assuming that the center portion in the fore-and-aft direction of the main girder Cg of the container C will bend downward, the intermediate portion 12 of the rear roller guide 11 is made lower than the front and rear pedestals 18, so that the main girder Cg can be seated securely on the front and rear pedestals 18. In this embodiment, a notch 13 is provided in the intermediate portion 12, which is lower in height from the running surface of the deck 15 than the pedestals 18, to ensure a gap G2. The intermediate portion 12 only has the function of guiding the rear roller Cr and does not play a role in supporting the main girder Cg of the container C. Therefore, providing the notch 13 here does not affect the supporting function of the container C.

[0085] (3) Furthermore, each support 15b constituting the deck 15 of the trailer 200 is formed so that its vertical dimension decreases toward the tip (toward the outside in the vehicle width direction). This allows the deck 15 to be lighter than if the vertical dimensions of the supports 15b were uniform.

[0086] (4) The flat plate 15a constituting the deck 15 of the trailer 200 is placed with a gap between it and the rear roller guide 11, and a groove surrounded by the flat plate 15a, the rear roller guide 11, and the frame 6b is formed as a groove, and the weld metal 15e joining the flat plate 15a and the rear roller guide 11 is placed in the groove. By configuring the weld metal 15e in this way so that it does not protrude above the running surface 7, it is possible to suppress interference between the weld metal 15e of the rear roller Cr of the container C running on the running surface 7 and the rear roller Cr, as shown in FIG. 17, and to smooth the movement of the container C. Furthermore, because interference between the rear roller Cr running on the running surface 7 and the weld metal 15e does not occur, the inclined surface of the rear roller guide 11 can ensure the guide function of the rear roller Cr.

[0087] -Variations- 24 and 25 are diagrams showing an example of the configuration of a container lashing device provided on a container loading / unloading vehicle according to a modified example. FIGS. 24 and 25 correspond to FIGS. 6 and 7. In FIGS. 24 and 25, elements that are the same as or correspond to those in the above-described embodiment are denoted by the same reference numerals as those in the previously described drawings, and their description will be omitted. In this example, the configuration of the container lashing device 140 differs from that of the above-described embodiment. In the example of FIGS. 6 and 7, the cylindrical engaging member Ce of the container C engages with the fixed, L-shaped anti-jumping piece 141. In this example, the engaging member Ce of the container C is fixed and L-shaped, and the engaging member Ce is inserted into the annular anti-jumping piece 141 of the container lashing device 140 to secure the container C. The anti-jumping piece 141 is rotatable about a shaft 141a and rises and falls in conjunction with the movement of the container C during loading and unloading. The anti-jumping piece 141 stands up when a container C is fastened, as shown in FIG. 24, and falls down when a container C is not fastened, as shown in FIG. 25. In the container loading / unloading vehicle 100 of this example, as in the above embodiment, when a container C is loaded onto the vehicle chassis 110, a gap G1 is secured between the subframe 112 of the vehicle chassis 110 and the main girder Cg of the container C. Through this gap G1, the up-and-down state of the anti-jumping piece 141, i.e., the state of fastening of the container C by the container lashing device 140, can be visually confirmed. Furthermore, because light entering through the gap G1 illuminates the container lashing device 140 and its vicinity, the operating state of the container lashing device 140 can be confirmed even from behind the container C. In this way, even if the type of container lashing device 140 is different, the gap G1 is effective for visually confirming the state. [Explanation of symbols]

[0088] 4... chassis, 11... rear roller guide (support member), 12... middle portion, 13... notch, 15... deck, 18... base, 40... container securing device (mechanism), 100... (container transport vehicle), 110... chassis, 120... cargo handling device, 140... container securing device (mechanism), 160... support member (base, pad), 200... trailer (container transport vehicle), C... container, Cg... main girder, Cr... rear roller, G1, G2... gap

Claims

1. In a container transport vehicle that runs with a container on the chassis, left and right support members for respectively supporting the left and right main girders of the container; a mechanism located between the left and right support members, The support member is configured to provide a gap between the chassis and the main girder of the container to be loaded at a position corresponding to the mechanism when viewed in the left-right direction of the chassis. A container transport vehicle characterized by:

2. The container transport vehicle according to claim 1, the support members are a plurality of bases arranged at intervals in the front and rear directions on the chassis, When the container is seated on the plurality of pedestals by the main girder, the gap is secured between the chassis and the container between the adjacent pedestals in the front and rear. A container transport vehicle characterized by:

3. The container transport vehicle according to claim 2, The container transport vehicle is characterized in that the base is a pad that allows the main beam of the container to slide back and forth when loading and unloading the container.

4. The container transport vehicle according to claim 2, a deck on which rear rollers provided at the rear of the container run when loading and unloading the container; the support member is a rear roller guide that guides the rear roller that travels on the deck, The base is a part of the rear roller guide. A container transport vehicle characterized by:

5. The container transport vehicle according to claim 4, the rear roller guide is configured to include a front portion and a rear portion that constitute the base, and an intermediate portion that is located between the front and rear portions and that protrudes less from the deck than the front and rear portions, A notch is provided in the middle portion to ensure the gap. A container transport vehicle characterized by:

6. The container transport vehicle according to any one of claims 1 to 3, A container transport vehicle characterized in that it is a container loading / unloading vehicle equipped with a loading device for loading and unloading the container onto the chassis.

7. The container transport vehicle according to any one of claims 1, 4 and 5, A container transport vehicle characterized by being a trailer.

8. A container transport vehicle according to any one of claims 1 to 5, A container transport vehicle, wherein the mechanism is a container securing device.

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