JP3173308U - Movable rack device for loading wire coils, etc., and truck or trailer - Google Patents

Abstract

An object of the present invention is to enable loading of as many cargos as possible within the load weight limit while keeping the ground height of the cargo when the wire coils etc. are stacked in two stages in the horizontal direction within the vehicle height limit, and shortening with a forklift etc. To provide a movable rack device for trucks and trailers with a simple and robust structure that allows cargo to be loaded and unloaded on time and easily fixed when loaded.
A movable rack device for holding and fixing an upper wire coil, a pair of rails provided on both sides in the longitudinal direction of the carrier with the lower wire coil loaded on the carrier, and the lower wire on the rail. One or a plurality of movable rack parts that can slide freely while straddling the coil, and the movable rack part holds a gap between the lower surface and the upper surface of the loading platform when there is no load, and It has a carriage unit having a suspension mechanism that closely contacts the lower surface with the upper surface of the loading platform, and a locking mechanism for limiting its own sliding on the rail.
[Selection] Figure 1

Description

  The present invention is intended to prevent the collapse of a load that is installed on a loading platform in order to load a wire or coil of wire wound around a core material on a truck or trailer, which is used when transporting metal wires, conductors or other wires. The present invention relates to a movable rack device and a truck or a trailer including the movable rack device.

  When wire coils are transported on land, they are loaded and transported on a truck or trailer. Multiple wire coils are stacked on a truck or trailer bed in a row with the coil axis in the short direction of the bed. Therefore, while maintaining the coil shape, the efficiency of the cargo handling work in the factory and warehouse on the shipping side and the receiving side is improved. In particular, when the coil shaft is loaded in the short direction of the loading platform, the forklift can be accessed from the side of the truck or trailer, and the wire coil can be lifted and lowered by inserting the fork directly into the gap in the center of the coil shaft. Therefore, the work efficiency when lifting and lowering a large number of wire coils is high.

Here, from the viewpoint of transportation efficiency, it is desirable that the number of wire coils loaded on a truck or trailer loading platform at the same time be as large as possible within the limits of the loading weight. If it can be stacked not only horizontally but also on top and bottom, it is advantageous to simply double the load. However, for vehicles running on public roads, the vehicle limit that does not require a license application is 3800mm in the height direction, and if it exceeds this, permission from the authorities will be obtained, and leading vehicles, trailing vehicles, etc. will be required In some cases, the procedure is cumbersome and costly. In addition, in the case of a trailer that has a structure in which the power vehicle and the cargo bed portion are separated and is often used by replacing the cargo bed portion, such permission is required for each combination of the power vehicle and the cargo bed portion, which is further disadvantageous. Accordingly, the ground clearance at the top of the upper wire coil when stacked in two stages is preferably 3800 mm or less.

  On the other hand, since the diameter of the wire coil is generally about 1400 mm, the height of the cargo on the loading platform is 2800 mm when simply stacked in two stages in the vertical direction. Since the height of the loading platform of a general low-floor trailer is about 1000 mm from the road surface, the ground height at the top of the upper wire coil is about 3800 mm, which may exceed the upper limit of the above-mentioned height. There is. Therefore, instead of simply overlapping two stages of wire coils, the center axis is shifted between the lower and upper stages so that the lower ends of the upper stage wire coils alternately enter the lower side of the line connecting the upper ends of the lower stage wire coils. It is desirable to load.

Thereby, since the height from the loading platform of the top part of the upper stage side wire coil can be made 2700 mm or less, it becomes possible to keep the ground height within limits. Actually, if two-stage stacking is performed in such a way that the wire coils are in direct contact with each other, the contact portion may be damaged due to friction due to vibration during loading and unloading work or running of a truck or trailer, or the mutual contact site due to the weight of the wire coil itself The wire coils should be stacked with a slight gap between them, and the upper wire coil should not be placed directly on the lower wire coil, but should be held hollow by some means. Is desirable.

Prior arts described in Patent Documents 1 to 3 are known as techniques for stacking an externally cylindrical cargo such as a wire coil on a loading platform. For example, in the wrapping paper carrier described in Patent Document 1 (Sho 56-102742), a two-level floor is provided on the loading platform, and the wrapping paper placed on the inclined second floor is rolled and provided at the front end of the second floor. It falls to the first floor from the gap and aligned, and finally realizes two-stage stacking. Such prior art is excellent in work efficiency at the time of unloading, but is not suitable for loading cargoes wound with steel wires and steel plates much heavier than wrapping paper, and is not suitable for application of forklifts.
Sho 56-102742

A carrier pallet described in Patent Document 2 (Japanese Patent Laid-Open No. 175446/1990) has a structure in which a cylindrical cargo is stacked in two stages on a flat bed having foldable legs, and the cargo along with the flat bed is loaded onto a truck or trailer bed. To move horizontally. Although such prior art is also highly efficient in loading and unloading, it is also unsuitable for heavy cargo in terms of load resistance and durability.
Hei-175446

The cargo vehicle loading structure described in Patent Document 3 (Japanese Patent Application Laid-Open No. 11-227514) has two stages of cargo by individually raising and lowering an installation base provided on the floor of a cargo box in which a base on the base is installed. It is to realize stacking. Such prior art is not only unsuitable for heavy cargo in terms of load resistance and durability, but also requires a large number of hydraulic devices, and has a problem that the structure is complicated and expensive.
JP-A-11-227514

The present invention solves the problems of the prior art as described above, and transports two-stage stacks of heavy-weighted externally shaped cargos in which a wire coil or a metal plate is wound in a roll shape on a truck or trailer loading platform. Providing a loading means. The problem to be solved is to make it possible to load as many cargos as possible within the loading weight limit while keeping the ground height of the top of the cargo when stacked in two steps below 3800 mm which does not require application for approval Non-contact wire rod coil, etc., no load collapse due to vibration or shaking during running of truck or trailer, cargo can be loaded and unloaded in a short time by forklift, and cargo can be easily fixed when loading Realizing a simple and robust structure that can withstand the weight of the cargo at low cost.

In order to solve the above-mentioned problem, a device according to claim 1 of the present invention is configured by stacking a plurality of wire coils on a truck or trailer bed and in two upper and lower stages with the coil shaft in the transverse direction of the bed. A movable rack device that holds and fixes an upper wire coil when loaded, and the movable rack device includes a pair of rails provided on both sides in the longitudinal direction of the loading platform across the lower wire coil loaded on the loading platform. One or a plurality of movable rack parts that can slide freely on the rail while straddling the lower wire rod coil, and the movable rack portion holds one of the main body frame and the upper wire coil. It has the some coil holding | maintenance part and one set or several sets of trolley | bogie parts.

In a truck or trailer equipped with a movable rack device according to the present invention, first, lower-stage side wire coils and the like are loaded in a row on the loading platform with the coil shaft directed in the lateral direction of the loading platform. Since the wire coil or the like has a cylindrical shape, if it is loaded as it is on a flat carrier, it is easy to roll in the longitudinal direction of the carrier and is unstable. Therefore, it is desirable to provide a locking mechanism for preventing rolling on the carrier. As such a locking mechanism, it is common to install “car stopper” -like members corresponding to the outer cylinder curved surface of the square rod or wire coil on both sides of the wire coil. It is more desirable to provide a concave surface that supports the shape of the surface. In addition, if a cushion pad such as a rubber sheet is installed at a location where the concave surface is in direct contact with the curved surface of the outer coil of the wire coil, the wire coil may be damaged by friction or shock caused by vibration or shaking during transportation. It is more desirable because it can prevent it.

The movable rack apparatus according to claim 1 is provided with a pair of left and right rails on both sides in the longitudinal direction of the loading platform so as to sandwich a row of lower wire coils on the surface of the loading platform, and straddling the lower wire coils on the rail. One or a plurality of movable rack portions that can slide freely are provided. The movable rack portion freely slides on the rail while straddling the row of loaded lower-stage wire coils, and after being locked at a predetermined position, loads the upper-stage wire coils on the upper portion thereof.

Here, when the rail is installed at the height of the loading platform surface, the height of the movable rack portion requires the height of the holding portion of the upper wire coil in addition to the diameter of the lower wire coil. There is a risk of instability with respect to left-right shaking of the loading platform. Therefore, for example, if a pair of left and right fixing structures are provided along the longitudinal direction of the loading platform so as to sandwich the row of lower wire coils on the loading platform, and the rail is installed on the upper surface of the fixing structure, the installation position of the rail is increased. Accordingly, the height of the movable rack portion itself can be reduced, and the stability of the movable rack portion and the upper stage side wire coil loaded thereon can be enhanced. In this case, if the height of the upper surface of the fixed structure is slightly lower than the center axis of the lower wire coil on the loading platform, the fork of the fork lift and the fixed wire coil are loaded and unloaded by the forklift from the side of the loading platform. It is possible to prevent the structure from interfering and prevent troubles in loading and unloading cargo. As described above, it is more desirable to install the fixed structure on the loading platform and install the rail on the upper surface thereof because the height of the movable rack portion itself can be suppressed, so that the stability of the cargo is increased. Whether or not to install such a fixed structure is arbitrary, and the rail may be directly installed on the upper surface of the loading platform.

Next, the movable rack part includes, for example, a main body frame that is solidly constructed by welding square steel pipes, one or a plurality of coil holding parts that hold the upper stage side wire coil, and one or a plurality of sets of carriage parts. Become. The upper part of the main body frame has a coil holding part for holding and fixing the upper stage side wire coil so as not to roll, and also in the coil holding part, for example, rubber It is desirable to install a cushion pad such as a sheet. On the other hand, the carriage unit has a wheel that allows the movable rack unit to freely slide along the rail, but the wheel does not drop or derail from the rail due to vibration or shaking while the truck or trailer is running. It is desirable to have a structure. For example, it is conceivable that the rail is constituted by a square steel pipe having a slit in the upper part, a wheel portion of the carriage part is accommodated in the square steel pipe, and is connected to the main body frame through the slit. In that case, the wheel portion includes a vertical wheel that slides on the rail while supporting the weight of the movable rack portion, and a horizontal wheel that guides the sliding of the carriage portion along the inner walls of the side surfaces of the square steel pipes constituting the rail. More desirable.

Note that the number of upper coils mounted on the movable rack unit and the number of movable rack units provided in a set of movable rack devices are arbitrary, but are appropriately determined depending on the effective total length of the truck or trailer platform to which the present invention is applied. Should do. Generally, forklifts having two forks are often used for cargo handling such as wire coils, and accordingly, the movable rack portion is loaded with two wire coils per unit. It is desirable. In addition, since the total length of the low floor part of the loading platform of a general low floor type trailer is 10,000 to 12000 mm, when the total length of the movable rack for loading two wire coils having a diameter of 1400 mm is set to 3000 mm, three movable racks are provided. Equipped and 12 wire coils can be loaded together in the upper and lower stages.

Next, the invention described in claim 2 of the present application is the movable rack device according to claim 1, wherein when the carriage unit is unloaded, the movable rack unit is disposed between the lower surface of the movable rack unit and the upper surface of the loading platform. And a suspension mechanism that holds the lower surface of the movable rack portion in close contact with the upper surface of the loading platform when the upper stage side wire coil is loaded.

  2. The movable rack device according to claim 1, wherein when the movable rack portion is configured to support the total weight of the upper stage side wire coil only by the carriage portion, the carriage portion and the rail support a large load. In addition, since changes in load due to vibration or shaking during traveling of the truck or trailer are also concentrated on the carriage and the rail, it is necessary to have a very solid structure to withstand this.

Here, by providing a suspension mechanism that can be expanded and contracted in the vertical direction on the carriage part as described above, when the upper stage side wire coil is loaded, the suspension mechanism receives the weight and contracts, and the movable rack part is moved downward. By sinking, the lower structural member of the movable rack portion is in close contact with the upper surface of the loading platform or when the fixed structure is provided. As a result, the total weight of the movable rack portion plus the upper-side wire coil can be distributed and supported throughout the main body frame of the movable rack portion without being concentrated only on the carriage and the rail.

On the other hand, when the movable rack portion is empty, the weight applied to the movable rack portion of the carriage portion is only the main body frame, so that the suspension mechanism extends and the main body frame rises upward. At this time, in the state where the main body frame is raised, if the minimum height on the loading platform of the part straddling the lower wire coil is set to a position exceeding the upper end of the lower wire coil, the movable rack part of the empty load can be freely Can be reciprocated on the lower wire coil.

In addition, after moving the movable rack portion to a position where the axis of the upper wire coil is located at the midpoint between the axes of the lower wire coil (hereinafter referred to as “loading position”), the upper wire coil is moved. When loaded, the loaded upper-stage side wire coil sinks downward together with the movable rack portion, and the lower structural member of the movable rack portion is stably fixed to the upper surface of the loading platform or the upper surface of the fixed structure. At this time, the lower end of the upper wire coil is lowered below the line connecting the upper ends of the lower wire coils. Therefore, even if the movable rack part slides back and forth during transportation, the upper and lower wire members Since the coils come into contact with each other to prevent further sliding, it is possible to prevent a situation in which the movable rack portion falls from the rear end of the cargo bed or collides with the front edge of the cargo bed.

Furthermore, the merit of adding the suspension mechanism is that it is sufficient that the carriage unit has a load resistance sufficient to support only the weight of the body frame in an unloaded state, so an unnecessary and rigid structure is unnecessary. Thus, the structure of the entire movable rack device can be simplified and the cost can be reduced.

In addition, the trolley | bogie part in this invention is applicable also to uses other than the support of the said movable rack. For example, on the outside of a pair of rails for sliding the movable rack, a hood rail for a hood covering another pair of cargoes is installed, and a plurality of trolley frame posts attached to the carriage part are installed, and the hood is attached to the column. If a cloth is stretched, a movable hood structure that can be easily deployed and stored can be realized.

  Next, the invention described in claim 3 of the present application is the movable rack device according to claim 1 or 2, wherein the movable rack portion restricts its own sliding on the rail. It has the latching mechanism for doing.

As mentioned above, the movable rack part can slide freely on the rail, so even if the wire coil is loaded, it can move freely on the loading platform while the truck or trailer is running. It is important to ensure safety. Further, when the upper stage side wire coil is loaded, it is necessary to accurately fix the position of the movable rack portion to the loading position described above. Therefore, in the device according to the third aspect, a locking mechanism is provided that can lock the movable rack portion to the loading platform or the fixed structure at a predetermined position.

The structure of such a locking mechanism is not particularly limited. For example, a structure in which a certain locking device is provided in the main body frame or the carriage portion and the rail or the loading platform or the fixed structure is mechanically directly gripped at a predetermined position is considered. It is done. In the loading platform of a truck or trailer, there are cases where pillars for preventing the collapse of the load, so-called stanchions, are inserted at fixed intervals for fixing in a standing state. When the movable rack side fixed pipe is attached and the movable rack portion is fixed at the time of cargo loading, the fixed hole is in a state of being aligned below the vertical line of the movable rack side fixed pipe, and in this state, the movable rack side fixed pipe An extremely simple locking mechanism can be realized by inserting a rod-shaped fixed shaft from above, reaching the fixed hole as it is, and locking the movable rack portion to the loading platform by insertion and fitting. At least one locking mechanism is provided for each movable rack, and when moving the empty movable rack portion, the fixed shaft is removed, and when loading, the movable rack portion is positioned and the fixed shaft is inserted. Thus, the movable rack is locked, and then the upper side wire coil is loaded.

Next, the invention according to claim 4 of the present application is a truck or a trailer for stacking and transporting a plurality of wire coils in two upper and lower stages with the coil shaft directed in the lateral direction of the loading platform. The movable rack apparatus according to any one of claims 1 to 3 is provided.

Since the movable rack apparatus according to claims 1 to 3 of the present application includes only a rail and one or a plurality of movable rack portions that are slidable on the rail, the movable rack device has a flat loading platform over its entire length. In the case of a trailer, it can be equipped simply by installing a rail directly on the upper surface of the loading platform. Therefore, it is not necessary to remodel the truck or trailer platform on a large scale as in the preceding example, and the present invention can be widely applied to existing general trucks or trailers, and the cost can be reduced.

In the case of a two-stage low-floor trailer with a high loading platform surface at the connection with the power vehicle and a low main loading platform surface, the fixed structure is installed on the main loading platform and the loading platform surface and the top surface of the connection If the rails are installed over the entire length of the loading platform, the slidable range in which the movable rack portion can be routed when loading the lower wire coil is increased, and convenience during loading of cargo can be improved.

  The present invention makes it possible to stack the wire coils in a single row in the short direction of the loading platform and in two stages up and down without compromising the stability and safety of the vehicle during transportation, and within the restricted size of the vehicle. It is possible to provide a structure of a loading platform that does not require any dedicated power, at a low cost. For this reason, more wire coils can be loaded without obtaining special permission from the authorities. In addition, it is possible to make the upper and lower wire coils and the like non-contact, and it is possible to minimize the work of securing and fixing the cargo with a wire rope or the like to prevent load collapse due to vibration or shaking during traveling. . Moreover, cargo can be loaded and unloaded in a short time by a forklift, and a simple and robust structure that can withstand the weight of the cargo can be realized at low cost. For this reason, the effect of enhancing the cost reduction effect in the wire coil transportation is demonstrated from both the viewpoint of safe and efficient transportation and the saving of labor and cost for obtaining the permission.

  Below, the example of the form for implementing this invention is demonstrated using figures. FIG. 1 is a side view of a semi-trailer for transporting a wire coil of a movable rack device according to the present invention, and FIG. 2 is an elevation view from the rear. A trailer unit 1 is connected to a motor vehicle 0, but the trailer unit 1 in this figure has a two-stage type with a high ground clearance of the loading platform portion on the connecting portion with the motive power 0 and a low main ground height of the loading platform portion. Is assumed. On both sides of the main loading platform portion of the trailer unit 1, a cross-section box-shaped fixed structure 4 is provided so as to sandwich a lower wire coil 7 loaded on the loading platform, and the upper surface of the fixed structure 4 is connected to the coupling portion. It forms the same surface as the upper carrier part, and a pair of rails 5 are installed on the entire surface of the carrier. In the figure, H1 indicates the ground clearance of the main loading platform portion 2, and H2 indicates the ground clearance of the fixed structure 4.

A bottom raising portion 3 having a concave surface for holding the lower wire rod coil 7 is provided on the upper surface of the main loading platform portion 2. Further, a plurality of loading platform side fixed pipes 6 constituting locking means for the movable rack portion are provided in the loading platform portion and the main loading platform portion on the coupling portion. The loading platform side fixing pipe 6 forms an opening directly on the loading platform surface in the loading platform portion on the connecting portion, and in the main loading platform portion, from the fixing hole provided in the loading platform frame to the upper surface of the fixing structure 4. It has an upright shape, and an opening is formed on the upper surface of the fixed structure 4. Further, three movable rack portions L1 to L3 are stacked on the rail 5 so as to straddle the lower wire coils, and any of them can freely slide on the rail 5.

  1 and 2, a total of six lower-stage wire coils 7 are loaded on the main loading platform, and two upper-stage wire coils are placed on the central movable rack portion L2 and the rear movable rack portion L3, respectively. 8 shows a loaded state. Here, the movable rack portions L2 and L3 are locked at positions where the axis of the loaded upper wire coil 8 is directly above the midpoint of the line connecting the shafts of the lower wire coil 7, and the upper rack at that time The lower end of the side wire coil 8 is positioned below the line connecting the upper ends of the lower side wire coil 7. In addition, the movable rack part L1 is waiting in the loading platform part on all the connection parts in the state of an empty load.

FIG. 3 is a diagram showing the step of loading the wire coil on the wire coil semi-trailer for the movable rack device according to the present invention step by step from a to e. First, as shown in FIG. 1, the wire coils are loaded in such a manner that all the movable rack portions L1 to L3 are placed in front of the loading platform of the trailer 1 and, for example, the lower wire coils 7 are sequentially arranged two by two with a forklift from the rear of the loading platform. It is loaded on the loading platform. In FIG. 2B, after loading the first two, the movable rack portion L3 is moved to the end of the loading platform, and the next two lower-stage wire rod coils 7 are loaded.
At this time, since the movable rack portion L3 that moves is empty, it can pass above without interfering with the upper end of the already loaded lower wire coil. In the figure, the movable rack portion L2 is continuously passed over the lower wire rod coil on which the movable rack portion L2 has already been loaded, the next two lower wire rod coils 7 are loaded, and the lower loading is completed.

  Next, in FIG. 2, the movable rack portions L2 and L3 are moved to a predetermined locking position, and two upper side wire coils 8 are loaded respectively, while the remaining movable rack portion L1 is also locked to the predetermined locking position. As shown in the figure, the upper stage side wire coil 8 is loaded, and the upper stage side loading is also completed. At the time of unloading at the transportation destination, the unloadable movable rack portions L1 to L3 are sequentially moved to an unobstructed position after the unloading of the upper-stage-side wire coil 8 and the lower-stage-side wire. The coil 7 is unloaded. The movable rack portions L1 to L3 can be easily slid by human power when in an empty state. After loading the upper and lower wire coils as shown in Figure E, if the load capacity of the trailer allows, an appropriate rolling prevention member is also placed between the rails on the loading platform on the open joint. By installing, it is possible to further load a wire coil.

  FIG. 4 is an enlarged view of any one of the movable racks L1 to L3 as viewed obliquely from above. The main body frame is not only a vertical member 10 made of a square steel pipe or a round steel pipe, a lower vertical member 11, an upper vertical member 12, and a horizontal girder member 13, but also a gate type as viewed from the front and rear direction of the loading platform by a vertical reinforcing member 14 and a horizontal reinforcing member 16. It has a structure. Further, an inclined member 15 is provided between the vertical member 10 and the upper vertical member 12, a holding member 17 is passed between the left and right inclined members 15, and the upper stage side wire coil 8 is provided between the opposing holding members 17. A structure to hold. It is more desirable to attach a buffer member such as a rubber sheet to the surface that contacts the upper wire coil 8 of the holding member 17. Further, movable rack side fixed pipes 18 are respectively attached to the side surfaces of the vertical members 10 located at the four corners of the main body frame, and the lower end of the movable rack side fixed pipe 18 is connected to the lower surface of the lower vertical member 11. I try to be the same.

  Further, a carriage part 20 is attached to the outer side surface of the vertical reinforcing member 14 by a support member 19 so as to protrude on both rails, and the carriage part 20 has a square shape with a cross section having a slit on the upper side. A pair of rails 5 made of steel pipes can freely slide. The carriage unit 20 has a suspension member 23 sandwiched between an upper plate 21 and a lower plate 22, and a wheel 24 is attached to the lower plate 22, and the wheel 24 travels in a square steel pipe forming the rail 5. The wheel 24 is a vertical wheel for traveling on the inner bottom surface of the rail 5, but in addition to this, a horizontal wheel (not shown) that stabilizes the sliding of the carriage unit 20 from the left and right directions along the inner side surface. A combined structure is preferable.

In addition, the suspension member 23 pushes up the main body frame to the position where the cross beam 13 can pass over the lower wire coil 7 when empty, and when the upper wire coil 8 is loaded. It is assumed that the lower vertical member 11 has a repulsive force enough to lower the main body frame to a position where the lower vertical member 11 comes into close contact with the upper surface of the fixed structure 4 due to the shrinkage due to the weight. Although the material and structure are not limited, for example, it is possible to use a steel wire spiral spring (coil spring), and a steel plate spring may be used.

  With the configuration of the carriage unit 20, the movable rack portions L1 to L3 slide freely on the rail when empty, and when the upper stage side wire coil 8 is loaded at a predetermined locking position, the main body frame itself is Since it is placed directly on the upper surface of the fixed structure 4, the carriage unit 20 is released from the weight of the upper wire coil 8. Thereby, the cart unit 20 only needs to have a structure that can support only the weight of the main body frame.

  FIG. 5 is an enlarged side view in which the lower stage side wire coil 7 is loaded and the movable rack portion L1 is loaded with the upper stage side wire coil 8 and the movable rack portion L2 is in an empty state as viewed from the side of the loading platform. FIG. 6 is an enlarged elevation view of the trailer as viewed from the rear. FIG. 7 is a perspective view of the state of the loading platform 2, the fixed structure 4, the rail 5 installed thereon, and the movable rack portions L1 and L2 in the state shown in FIGS. . 5 and 6, h1 indicates the height from the loading platform upper surface 2 to the top of the movable rack portion L1, and h2 similarly indicates the height to the top of the movable rack portion L2. The difference between h1 and h2 indicates a change in the holding height of the movable rack portion due to the contraction and extension of the suspension member 23.

A loading platform side fixed pipe 6 stands up from a fixed hole provided in the loading platform upper surface 2 through the fixed structure 4 to the upper surface of the stationary structure 4, and the movable rack side is vertically above the loading platform side fixed pipe 6. The position where the fixed tube 18 overlaps becomes the locking position of the movable rack portion. In this figure, the movable rack portions L1 and L2 are stopped at the locking position, and the movable rack portion L1 loaded with the upper stage side wire coil 8 is in a state where the lower vertical member 11 is placed on the upper surface of the fixed structure 4. It is descending. Therefore, the lower end of the movable rack side fixed pipe 18 is in contact with the upper end of the loading platform side fixed pipe 6 so that both the fixed pipes are vertically overlapped, and a rod-like fixed shaft 25 is inserted from directly above the movable rack side fixed pipe 18. Thus, both the fixed pipes are penetrated. Thus, the movable rack portion L1 is locked by the fixed shaft 25 so as not to move from the locking position. The other movable rack portions L2 and L3 are also locked to the cargo bed in the same manner.

  The embodiment of the structure of the movable coil device for loading the wire rod coil and the loading platform of the truck or trailer according to the present invention has been described above in detail for each step of the specific configuration and operation. The present invention is not limited to the above, and can be improved or changed within the scope of the technical idea of the present invention, and they belong to the technical scope of the present invention.

  According to the present invention, it is possible to stack the wire coils in a single row in the short direction of the loading platform and in two stages up and down without compromising the stability and safety of the vehicle during transportation, and within the restricted size of the vehicle. The structure of the loading platform can be provided. For this reason, it has the effect of improving the cost reduction effect in wire coil transportation, both in terms of improving safety and efficiency of transportation efficiency and reducing the effort and cost for obtaining permission, especially metal wires, conductors and other wires. Or, it is suitable for transporting a cylindrical heavy cargo such as a rolled steel sheet, and also suitable for transporting large diameter steel pipes or concrete pipes by appropriately changing the size of the apparatus.

1 is a side view of a semi-trailer for transporting a wire coil to which a movable coil device for loading a wire coil according to the present invention is applied. It is the figure which looked at the said trailer from back. It is the figure which showed the loading process of the wire coil to the said trailer in steps. It is a perspective view of the movable rack apparatus for wire rod coil loading concerning this invention. FIG. 6 is an enlarged side view of the state in which the lower-stage side wire coil 7 is loaded and the movable rack portion L1 is loaded with the upper-stage side wire coil 8 and the movable rack portion L2 is empty. It is the expanded elevation view which looked at the state of Drawing 5 from the back of a trailer. It is a perspective view of the loading platform part in the state of FIG.

0 Motor vehicle 1 Trailer (semi-trailer)
2 loading platform 3 bottom raising portion 4 fixed structure 5 rail 6 loading platform side fixed tube 7 lower stage side wire coil 8 upper stage side wire coil 10 vertical member 11 lower vertical member 12 upper vertical member 13 horizontal girder 14 vertical reinforcing member 15 inclined member 16 horizontal Reinforcing member 17 Holding member 18 Movable rack side fixed tube 19 Support member 20 Cart unit 21 Upper plate 22 Lower plate 23 Suspension member 24 Wheel 25 Fixed shaft

Claims (4)

A movable rack device that holds and fixes an upper wire coil when a plurality of wire coils are stacked on a truck or trailer loading platform in two upper and lower stages with the coil shaft facing in the lateral direction of the loading platform. The movable rack device includes a pair of rails provided on both sides in the longitudinal direction of the loading platform across the lower wire coil loaded on the loading platform, and one that can freely slide on the rail while straddling the lower wire coil. Or a plurality of movable rack parts, the movable rack part having a main body frame, one or a plurality of coil holding parts for holding the upper side wire coil, and one or a plurality of sets of carriage parts. A movable rack device characterized by the above. The carriage unit has a suspension mechanism that maintains a gap between the lower surface of the movable rack unit and the upper surface of the loading platform when no load is applied, and that closely contacts the lower surface of the movable rack unit with the upper surface of the loading platform when loading the upper stage side wire coil. The movable rack device according to claim 1, wherein the movable rack device is provided. The movable rack apparatus according to claim 1, wherein the movable rack portion has a locking mechanism for restricting its own sliding on the rail. A truck or a trailer for stacking and transporting a plurality of wire coils in two upper and lower stages with the coil axis directed in the lateral direction of the loading platform, wherein the coil is on the loading platform. A truck or trailer comprising a movable rack device.

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