JP2017071403A - Floor surface detector for cargo transport container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor surface detector for a cargo transport container that allows an operator to more reliably and efficiently check whether or not a floor part in a cargo transport container is in an abnormal state in an inspection work before a cargo is carried in.SOLUTION: A floor surface detector 1 for a container includes: a floor detection part 2 including a detection surface 4 formed so as to be brought into surface contact with a floor part 32 of a container body 31 for an ocean container 30 (dry container 30) used for transporting a cargo stored in a container body 31 to a destination; and a pulling part 3 connected to the floor detection part 2 for pulling the floor detection part 2. By pulling the pulling part 3, the floor detection part 2 relatively moves on the floor part 32 while maintaining a state of contact with the floor part 32 of the container body 31, thereby detecting an abnormal state occurring in a height direction H of the floor part 32 by the detection surface 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a floor detector for a freight container used for checking the state of an internal floor surface of a freight container mainly used for sea freight transportation.

  In sea freight transportation, cargo is stored in a container for sea (container for cargo transportation), loaded on a container ship on the sea, on a trailer on the land, and transported to a destination. The container body of a marine container is formed in a box shape with steel, aluminum, etc., and generally, the opening / closing door for loading and unloading cargo is on the one end side in the full length direction along the width direction and the height direction. It is on one side of the container body. The marine containers are configured in accordance with the ISO standard. As standard size (outer dimensions) containers, so-called 20ft containers (total length 6.058m, total width 2.438m, total height 2.591m) and 40ft containers (full length) 12.192 m, overall width 2.438 m, and overall height 2.591 m) are mainly used.

  In addition, such marine containers have multiple types of container configuration specifications such as dry containers, ventilator containers, flat rack containers, etc. The type of container used varies depending on the transportation mode of the cargo to be transported. For example, in the case of a dry container, the floor portion in the container body is lined with a wooden plate material, but the four side portions including the open / close door and the ceiling portion have no lining, and the inside of the container body is It remains exposed. The floor is formed by connecting a plurality of plate members laid on the cross member of the container body in the full length direction and the full width direction.

  The cargo transported in the dry container is, for example, cargo such as daily commodities, industrial commodities, and industrial products. Freight is often packed and fixed on a loading table having an opening into which the fork can be inserted so that the cargo is packed and lifted up by the fork so as not to collapse. Also, to prevent the cargo (load) from moving in the dry container during transportation, the operator hits a fixing nail from the loading platform to the floor of the container body before transportation, and the load is secured to the floor of the container body. In state, it is being transported. When unloading the cargo that arrived at the destination from the dry container, the operator pulls out the fixing nails, then inserts the lift fork into the opening of the cargo handling platform, lifts it up, and loads the load to the floor of the container body. The lift is moved in a state of being separated from the section, and the cargo is carried out from the dry container together with the loading table. When all the cargo is unloaded from the dry container and the dry container becomes empty, the dry container is returned to the container pool of the shipping company or the like that is the owner.

  Next, the person who uses the container borrows this dry container from the container pool of the shipping company, etc., and the worker prepares for cargo loading, and forgetting to remove the fixing nail or abnormalities in the floor etc. in the container body It is confirmed by visual inspection whether there is any. Such inspection work is performed by opening the door and daylighting from the outside.

  In addition, since such inspection work is publicly implemented, prior art documents are not disclosed.

  However, in marine containers such as dry containers, the depth (the total length of the inner dimensions) is 5.898 m for 20 ft containers and 12.032 m for 40 ft containers. However, the inside of the container body is dark. Therefore, the following problems have occurred in the visual inspection work.

(1) The fixing nails left on the floor are difficult to find in the inspection work Among the fixing nails that have fixed the load on the floor of the container body, a part of the fixing nails that remain without being pulled out The nail may be overlooked in the inspection work. In particular, it is difficult for the operator who performs the inspection work to identify the fixing nail on the floor portion that is rusted and brownish brown because it has the same color as the brown floor portion made of a wooden board.

(2) It is difficult to find the level difference between the plate materials in the floor part due to the deterioration of the plate material over time and the wear of the plate material caused by loading and unloading of cargo. A step with a large difference may have occurred. In the floor portion, the plate members are connected to each other over a plurality of rows in the full length direction and the full width direction, and therefore, such a step between the plate materials is difficult to confirm for an operator who performs the inspection work. .

  After unloading all the cargo from the dry container, when exporting the next cargo using this dry container, etc., if the fixing nails are overlooked by the inspection work and remain on the floor, the next cargo will be At the time of carrying in, there is a possibility that the fixing nails remaining on the floor may be damaged. In addition, when the next cargo is carried into the container body with a large level difference between the plates on the floor of the container body, the operator moves the next cargo by dragging it onto the floor. Then, when trying to fix at a predetermined position, the next cargo is caught by the step between the plate materials. For this reason, it is not only difficult to move the next cargo to a fixed position, but the impact when the next cargo is caught in a step causes the balance to be lost and the form of the cargo to be damaged. There is a risk of damaging the product. Therefore, the inspection work of the floor of the container body before carrying the cargo is important for the quality control of the cargo to be exported, and it is more reliable among workers without relying only on visual inspection. The development of a floor detector that can efficiently check and inspect the floor of the container body has been desired.

  The present invention has been made to solve the above problems, and whether or not an abnormal state has occurred with respect to the floor portion in the container for freight transportation in the inspection work before carrying in the cargo, It is an object of the present invention to provide a floor detector for a freight container that can be confirmed more reliably and efficiently by an operator.

  One aspect of the present invention made to solve the above-described problem is that a container for freight transportation used for storing cargo in a container body and transporting it to a destination is in surface contact with the floor of the container body. A floor detection unit including a detection surface formed in a possible manner; and a tow unit coupled to the floor detection unit for towing the floor detection unit, and by pulling the tow unit, the floor While the detection unit maintains a contact state with the floor of the container body, the detection unit detects an abnormal state of the floor generated in the height direction on the detection surface. Detecting.

  According to this aspect, in preparation for export of cargo using a container for cargo transportation, etc., in the inspection work to confirm by the operator whether there is any abnormality in the floor or forgetting to remove the fixing nails in the container body. Compared to the conventional inspection work that relies solely on visual inspection, the operator can easily and easily remove the fixing nails and floor steps that have been forgotten to be removed by using the floor detector of the cargo transportation container of the present invention. It can be discovered reliably and efficiently. Moreover, the time required for the inspection work using the floor detector of the cargo transportation container of the present invention is, for example, 70 to 80% less than the conventional inspection work that relies solely on visual observation. The cost associated with the floor inspection work can be significantly reduced.

  In said aspect, the said floor detection part is formed in the flat form which makes the said detection surface a plane, and the said tow | pulling part is formed in the rod shape, and is connected with respect to the said floor detection part so that rotation is possible. It is preferable.

  According to this aspect, when the operator performs an inspection operation for checking the abnormality of the floor portion of the container main body, the operator pulls the floor surface detection tool of the cargo transportation container of the present invention with the towing portion. The detection surface of the floor detection unit can always be in surface contact with the floor surface regardless of the above. For this reason, the operator can accurately grasp the fixing nail left on the floor and the large level difference generated in the floor without overlooking the dark container body.

  In said aspect, it is preferable to provide the illumination light which illuminates the inside of the said container main body.

  According to this aspect, the operator pulls the floor detection tool of the cargo transportation container of the present invention even in the dark container body, and also by the operator's own visual observation together with the floor detection unit, Therefore, a more reliable inspection of the floor can be realized.

  According to the floor detector for a freight shipping container according to the present invention, whether or not an abnormal state has occurred with respect to the floor portion in the freight shipping container in the inspection work before carrying in the cargo is checked. Can confirm more reliably and efficiently.

It is a front view which shows the container floor surface detection tool which concerns on embodiment. It is a side view of the container floor surface detection tool shown in FIG. It is a top view which shows the floor detection part of the container floor surface detection tool shown in FIG. It is explanatory drawing which shows a mode that the inspection of the floor part of a container main body is performed with the container floor surface detection tool which concerns on embodiment. It is a schematic diagram explaining the effect | action of the container floor surface detection tool which concerns on embodiment. It is a schematic diagram explaining the effect | action of the container floor surface detection tool which concerns on embodiment similarly to FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a floor detector for a cargo transportation container according to the present invention will be described in detail with reference to the drawings. In the present embodiment, the freight shipping container according to the present invention is a marine container used to carry cargo by sea freight transport by a container ship. Drawing 4 is an explanatory view showing signs that the inspection work of the floor part of a container main part is performed by the container floor detector according to an embodiment.

  Specifically, as shown in FIG. 4, in this embodiment, the marine container is a dry container 30 having a standard size (outside dimension) configured in accordance with the ISO standard, so-called 20 ft. Containers (total length 6.058 m, total width 2.438 m, total height 2.591 m) and 40 ft containers (total length 12.192 m, total width 2.438 m, total height 2.591 m). These marine containers 30 have an opening / closing door (not shown) for loading and unloading cargo on one end side in the full length direction (lower left side in the L direction as viewed in FIG. 4) and in the width direction (in FIG. This is a general dry container that is provided on one side portion (left side portion in FIG. 4) of the container main body 31 along the W direction as viewed and the height direction (H direction as viewed in FIG. 4).

  In the dry container 30, the floor portion 32 in the container body 31 is lined with a wooden plate material 33 (see FIGS. 5 and 6), but the four side portions including the open / close door and the ceiling portion have no lining. The inner side of the container body 31 made of steel or aluminum is exposed as it is. The floor portion 32 is formed by connecting a plurality of plate members 33 laid on a cross member disposed along the width direction W to the container body 31 in the full length direction L and the full width direction W. Yes. The floor width W0 along the full width direction W of the floor 32 is 2.352 m for both the 20 ft container and the 40 ft container.

  This dry container 30 is ready to inspect the inside of the container main body 31 before loading the cargo in preparation for exporting the cargo. When this inspection is performed, a container floor surface detection tool (a floor surface detection tool for a cargo transportation container of the present invention) is used.

  Next, the container floor detector according to the embodiment will be described. FIG. 1 is a front view showing a container floor detector according to the embodiment, and a side view thereof is shown in FIG. FIG. 3 is a plan view showing a floor detector of the container floor detector. As shown in FIGS. 1 to 3, in the present embodiment, the container floor surface detection tool 1 is roughly divided into a floor detection unit 2 and a traction unit 3 connected to the floor detection unit 2. The floor detection unit 2 has a detection surface 4 formed so as to be in surface contact with the floor 32 of the container main body 31 for a dry container 30 used for storing cargo in the container main body 31 and transporting it to a destination. Contains. The detection surface 4 is a flat surface having a rectangular outer shape.

  As shown in FIG. 3, the floor detection unit 2 is made of a thin aluminum plate material having a thickness of 3 mm and has a substantially rectangular outer shape with four corners having an R shape, and the thickness of the floor detection unit 2 is flattened to about 15 mm. It is formed into a flat plate shape by bending into a substantially rectangular parallelepiped shape. If the four corners of the floor detection unit 2 have an R shape, when the floor detection unit 2 comes into contact with the left and right sides of the corrugated container body 31, the floor detection unit 2 is caught on this side. Can be suppressed. The horizontal width (size in the left-right direction in FIG. 1) W1 of the floor detection unit 2 is 1.2 m as an example, which is slightly larger than the floor width W0 / 2.

  Further, it is particularly important that the floor detection unit 2 has a certain rigidity so as not to warp in the lateral width direction as indicated by a two-dot chain line in FIG. As in the present embodiment, when the floor detector 2 is formed by bending a thin plate material into a flat, substantially rectangular parallelepiped shape, such a certain rigidity can be secured, and the floor detector 2 Since the interior is hollow, the weight of the container floor surface detector 1 can be reduced (the weight of the container floor surface detector 1 is 2.2 kg). If the floor detection unit 2 is warped, the range of surface contact with the floor unit 32 extends to the entire detection surface 4 of the floor detection unit 2. As described later, the range in which the state of the floor unit 32 can be detected is narrow. Therefore, there is a possibility that the detection of an abnormal part in the floor portion 32 may be missed.

  The detection surface 4 is a smooth flat surface whose surface roughness is increased, and has a surface shape in which the frictional resistance with the surface of the plate member 33 of the floor portion 32 is further reduced. Note that when the detection surface 4 is anodized, the corrosion resistance of the detection surface 4 and the friction resistance of the detection surface 4 are further improved. Alternatively, for example, a metal material or a hard resin material having a friction coefficient of less than 0.5, a coating treatment, or the like is applied to the detection surface 4 by making the unevenness smaller, or a metal material having such a small friction coefficient, The detection surface 4 may be formed of a hard resin material, and the slidability with the floor portion 32 may be improved together with the friction resistance of the detection surface 4.

  The towing unit 3 is a part for towing the floor detection unit 2 by an operator's hand, is formed in a rod shape, and is rotatably connected to the floor detection unit 2. Specifically, the traction part 3 is made of an aluminum round bar, and has a through hole 15 that penetrates upward in the radial direction. The traction portion 3 is connected to the first hinge portion 11 in an inverted T shape while being sandwiched between the two support members 14, and the two support members 14, the traction portion 3 and the first hinge portion 11 are connected to each other. It is connected so as to be able to rotate about 180 degrees around one pivot shaft inserted. In addition, the traction unit 3 is assisted with the second hinge unit 12 with respect to the floor detection unit 2 by two auxiliary members 13 made of an aluminum plate material as a brace with the floor detection unit 2, as with the traction unit 3. A single pivot that is inserted through the member 13 is connected to be pivotable about 180 degrees.

  The through hole 15 is, for example, a hole for inserting and attaching an anchoring member such as a string or a hook. When the container floor detector 1 is not used, the anchoring member is anchored on a wall or the like at a predetermined place, It is provided for storing the floor detector 1. Moreover, the container floor surface detection tool 1 is equipped with the LED light 5 (illumination lamp of this invention) which illuminates the inside of the container main body 31. FIG. The LED light 5 is attached to the traction part 3, and the attachment position of the traction part 3 and the position where the light is illuminated can be freely adjusted.

  Next, how to use the container floor detector according to the embodiment will be described. The operator enters the floor portion 32 in the container main body 31 in an empty state with the container floor surface detection tool 1 with the open / close door of the dry container 30 fully opened. The depth in the full length direction L of the floor portion 32 is 5.898 m in the case of a 20 ft container and 12.032 m in the case of a 40 ft container, and the interior of the container body 31 is dark even when the opening / closing door is open. The LED light 5 is turned on. Next, the operator brings the floor detection unit 2 to the right side portion (lower right side portion in FIG. 4) of the container main body 31, and pulls the container floor surface detection tool 1 from the rear side as shown in FIG. Then, it walks toward the back side 35 of the container main body 31 from the opening / closing door. Next, when the floor detector 2 reaches the back side 35, the operator makes a U-turn, and then moves the floor detector 2 to the left side (upper left in FIG. 4) of the container main body 31, which is the same as the forward path. In the posture, it walks from the back side portion 35 toward the opening / closing door of the container main body 31. At this time, as shown in FIG. 4, the container floor detector 1 that reciprocates once through the floor 32 overlaps the range of the overlap length W2 (0 <W2) near the center of the floor 32 both in the forward path and the return path. Since it moves, the non-contact range of the floor detection part 2 and the floor part 32 does not exist.

  As described above, when the operator reciprocates once between the open / close door and the back side portion 35 at the floor portion 32 of the container main body 31, the container floor surface detector 1 pulls the towing portion 3 by the operator. The floor detection unit 2 relatively moves on the floor 32 while maintaining the contact state with the floor 32 of the container body 31. And this floor detection part 2 detects the abnormal state of the floor part 32 which has arisen in the height direction H with the detection surface 4. FIG.

  That is, as the abnormal state of the floor 32 occurring in the height direction H, the following two are specifically assumed. FIG.5 and FIG.6 is a schematic diagram explaining the effect | action of the container floor surface detection tool which concerns on embodiment. An operator may push and move the cargo while dragging it to the floor portion 32 in the container main body 31 of the dry container 30 at the time of loading or unloading the cargo. Due to the aging deterioration of the floor portion 32, a step 34 having a large difference in height may occur at the joint between the adjacent plate members 33A and 33B. In this case, if a large level difference 34 is generated in the floor 32, the floor detection unit 2 of the moving container floor surface detection tool 1 comes into contact with the large level difference 34 and is caught by the pulling of the pulling unit 3. . Therefore, the movement of the floor detection unit 2 is blocked by the large step 34, and the operator notices that the large step 34 is generated in the floor 32.

  In addition, when the operator unloads the load from the dry container 30 when the dry container 30 is used, the plate material 33 among all the fixing nails 41 that have fixed the load to the floor 32 of the container body 31. In some cases, the cargo handling platform is lifted up as it is without being aware of some of the fixing nails 41 that remain without being removed from the cargo, and the cargo is unloaded. In this case, if the fixing nail 41 is left on the floor portion 32, the container floor surface detector that is being moved is pulled by the traction portion 3 in the inspection work to be performed in the next use of the dry container 30. As shown in FIG. 6, the floor detection unit 1 of 1 is in contact with the fixing nail 41 left on the floor 32. Therefore, the movement of the floor detection unit 2 is blocked by the remaining fixing nail 41, and the operator can find the fixing nail 41 remaining without being extracted by the floor 32.

  Next, the operation and effect of the container floor detector according to this embodiment will be described. In the container floor detector 1 according to the embodiment of the present embodiment, the container main body is intended for the marine container 30 (dry container 30) used for storing cargo in the container main body 31 and transporting the cargo to the destination. A floor detection unit 2 including a detection surface 4 formed so as to be able to come into surface contact with a floor 32 of 31; and a tow unit 3 connected to the floor detection unit 2 for towing the floor detection unit 2 Yes. By pulling the towing unit 3, the floor detection unit 2 moves relative to the floor 32 while maintaining the contact state with the floor 32 of the container body 31, and the floor generated in the height direction H The abnormal state of the unit 32 is detected by the detection surface 4. Due to this feature, in preparation for export of cargo using the dry container 30, etc., in the inspection work to confirm by the operator whether there is any abnormality in the container body 31 forgetting to remove the fixing nail or the floor 32. Compared to the conventional inspection work that relies solely on visual inspection, the operator can easily and easily remove the fixing nail 41 and the step 34 of the floor portion 32 that have been forgotten to be removed from the floor portion 32 by using the container floor detector 1. It can be discovered reliably and efficiently. Moreover, according to the experiment of the present applicant, the time required for the inspection work using the container floor detector 1 is about 29 seconds for the 20 ft container and about 54 seconds for the 40 ft container, and only for visual inspection. Compared to the conventional inspection work that relied on, the inspection work time was reduced by about 80%. As a result, the cost associated with the inspection work of the floor portion 32 of the dry container 30 can be greatly reduced.

  Therefore, according to the container floor detector 1 according to the present embodiment, whether or not the floor portion 32 in the dry container 30 is in an abnormal state in the inspection work before the cargo is carried in There is an excellent effect that the person can confirm more reliably and efficiently.

  In the container floor detector 1 according to the present embodiment, the floor detector 2 is formed in a flat plate shape with the detection surface 4 as a plane, and the traction unit 3 is formed in a bar shape, with respect to the floor detector 2. It is connected so that rotation is possible. Due to this feature, when the operator performs an inspection operation for checking the abnormality of the floor portion 32 of the container main body 31, the operator can hold the traction portion 3 and pull the container floor surface detector 1 regardless of the posture. The detection surface 4 of the floor detection unit 2 can always be in surface contact with the surface of the plate member 33 of the floor unit 32. Therefore, the operator can accurately grasp the fixing nail 41 left on the floor portion 32 and the step 34 having a large height difference generated in the floor portion 32 without overlooking the dark container body 31. Then, the operator completely removes the fixing nail 41 that has been forgotten to be removed from the floor 32. In addition, the position of the step 34 having a large height difference generated on the floor 32 is confirmed. Paying attention under such a premise, if the operator carries in the next cargo in the container body 31 of the dry container 30 in an empty state, the goods of the customer who is the contents of the cargo (load) The cargo can be safely loaded into the dry container 30 without damaging the cargo and without damaging the load form of the cargo.

  In addition, the container floor detector 1 according to this embodiment includes the LED light 5 that illuminates the inside of the container main body 31, so that the operator can use the container floor even in the dark container main body 31. While pulling the surface detector 1, the floor 32 of the container body 31 can be confirmed by the operator's own visual observation together with the floor detector 2, thereby realizing a more reliable inspection of the floor 32. it can.

In the above, the present invention has been described with reference to the embodiments. However, the present invention is not limited to the above-described embodiments, and can be appropriately modified and applied without departing from the gist thereof.
(1) For example, in the embodiment, the container floor surface detection tool 1 in which the floor detection unit 2 and the traction unit 3 are both made of aluminum has been described. However, as described above, the floor detection unit 2 of FIG. If there is no warp as indicated by a two-dot chain line and the weight of the floor detector 1 can be reduced, the configuration, structure, shape and material of the floor detector of the cargo transportation container are particularly limited. is not.
(2) In the embodiment, the floor detector 2 has the container floor detector 1 with no additional objects. For example, in addition to a simple brush for cleaning the floor of the container body, a small brush is used. A foreign matter receiving portion that captures and collects foreign matters such as debris and debris of cargo packing material may be a floor surface detection tool for a cargo transportation container attached to the floor detection portion.
(3) In the embodiment, the freight transportation container is a 20 ft or 40 ft dry container among maritime containers, but is generated in the height direction in the empty container body. Any container may be used as long as it is necessary to check the abnormal state of the floor.

1 Container floor detector (Freight transport container floor detector)
2 Floor detection unit 3 Towing unit 4 Detection surface 5 LED light (illumination lamp)
30 Marine container, dry container (container for freight transportation)
31 Container body 32 Floor H Height direction of the floor

Claims (3)

A floor detection unit including a detection surface formed so as to be able to come into surface contact with the floor of the container main body, intended for a freight container used to store cargo in the container main body and transport it to a destination,
Connected to the floor detection unit, and has a tow unit for towing the floor detection unit,
By pulling the towing unit, the floor detecting unit relatively moves on the floor while maintaining the contact state with the floor of the container body, and the floor is generated in the height direction. Detecting an abnormal state of the part on the detection surface;
A cargo floor container floor detector. In the floor detector of the freight container according to claim 1,
The floor detection unit is formed in a flat plate shape having the detection surface as a plane,
The traction portion is formed in a rod shape and is rotatably connected to the floor detection portion;
A cargo floor container floor detector. In the floor detector for a freight container according to claim 1 or claim 2,
Comprising an illuminating lamp that illuminates the interior of the container body;
A cargo floor container floor detector.

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