Safety equipment for tank containers

Abstract

To provide a safety protective tool for a tank container that can protect a worker from a fall risk when the worker ascends to or descends from the top of a tank container using a ladder or some other ascent / descent tool.SOLUTION: The safety protective tool for a tank container protects, from a falling risk, a worker ascending to and descending from a top of a tank container transported by a vehicle. A safety protective tool 50 of an embodiment is placed along a ladder for the worker to ascend to or descend from the top of the tank container and includes: a locking portion 54 at the top thereof to be locked to a corner fitting placed at a top end of the tank container; a strut member 51 at the bottom thereof to be fixed in a falloff prevention state by being inserted into a corner fitting placed at a bottom end of the tank container and rotated; and a safety block, which is attached to a top end of the strut member 51 and can wind up an auxiliary wire connected to the worker.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to safety equipment for tank containers. [Background technology]

[0002] Conventionally, techniques relating to safety protectors for tank containers have already been proposed, for example, as disclosed in Patent Document 1 and the like.

[0003] Patent Document 1 discloses a tank container having a tank that is long in the longitudinal direction and has an openable manhole on its top surface that allows for the feeding and retrieval of liquids or powders, a frame including support columns erected at the front and rear ends of both sides of the tank and beams connecting a pair of the support columns arranged on each side of the tank, scaffolding extending in the longitudinal direction of the tank that is arranged above the tank and along at least one of the beams, and ladders hung above and below the tank close to the scaffolding, and the container is also equipped with a plurality of support columns connected to the beams or scaffolding close to the ladders along the longitudinal direction of the tank at intervals from one another and that can be raised by rotating in the longitudinal direction around fulcrums at the connection points with the beams or scaffolding, and handrails that are erected between the plurality of support columns and can be raised by the rotation around fulcrums at the connection points with each support column. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-131332 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a safety protector for a tank container that can protect a worker from the risk of falling when the worker uses a climbing tool such as a ladder to climb up to the top of the tank container. [Means for solving the problem]

[0006] The invention described in claim 1 is a safety protector for a tank container that protects workers climbing up and down to the top of a tank container transported by a vehicle from the risk of falling, a support member that is arranged on the top of the tank container along the lifting tool used by the worker to ascend and descend, and that has an engaging portion at its upper part that engages with a corner metal fitting arranged at the upper end of the tank container, and a fixing portion at its lower part that is fixed in a non-detachable state by being rotated while being inserted into a corner metal fitting arranged at the lower end of the tank container; a winding means attached to an upper end of the support member and capable of winding up an auxiliary wire connected to the worker; This is a safety protective equipment for tank containers.

[0007] The invention described in claim 2 is a safety protector for a tank container described in claim 1, in which the winding means winds up the auxiliary wire by applying tension to the auxiliary wire that supports the weight of the worker.

[0008] The invention described in claim 3 is the safety protector for a tank container described in claim 1, wherein the winding means is arranged rotatably in a horizontal plane.

[0009] The invention described in claim 4 is the safety protector for a tank container described in claim 1, wherein the support member is made of fiber reinforced plastic using carbon fiber.

[0010] The invention described in claim 5 is the safety protector for tank containers described in claim 1, wherein the locking portion of the support member is formed in a generally L-shape on the side and is locked by inserting its tip into an engagement hole opened in the upper end surface of a corner fitting arranged at the upper end of the tank container.

[0011] The invention described in claim 6 is a safety protector for a tank container described in claim 1, which is provided with an operating lever at the fixing portion of the support member that, when rotated, rotates the fixing piece while it is inserted into an engaging hole of a corner fitting arranged at the lower end of the tank container.

[0012] The invention described in claim 7 is The support member is A ladder is provided on one side of the rear of the tank container along the vertical direction of the tank container. Located along the lifting tool A safety protector for a tank container as described in claim 1. [Effects of the Invention]

[0013] According to the present invention, a safety protective device for tank containers can be provided that can protect workers from the risk of falling when they use climbing equipment such as ladders to climb up and down to the top of a tank container. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view showing the configuration of a safety protector according to the first embodiment. [Figure 2] FIG. 2 is a perspective view showing a tank container to which the safety protector according to the first embodiment can be applied. [Figure 3] FIG. 3 is a schematic perspective view showing a vehicle for transporting a tank container. [Figure 4] FIG. 4 is a perspective view showing a corner fitting of a tank container. [Figure 5] FIG. 5 is a perspective view showing the configuration of the upper part of the safety protector according to the first embodiment. [Figure 6] 6(a) and 6(b) are a front view and a side view showing a state in which the safety protector according to the first embodiment is used. [Figure 7] FIG. 7 is a partially cutaway side view showing the lower end of the safety protector according to the first embodiment. [Figure 8] 8(a) and 8(b) are diagrams showing the safety protector according to the first embodiment in an unlocked state and a fixed state. [Figure 9] FIG. 9 is a perspective view showing the operation of the upper part of the safety protector according to the first embodiment. [Figure 10] FIG. 10 is an explanatory diagram showing a state in which the safety protector according to the first embodiment is used. [Figure 11] FIG. 11 is a perspective view showing the configuration of a safety protector according to the second embodiment. [Figure 12] FIG. 12 is a perspective view showing the state in which the support members of the safety protector according to the second embodiment are separated. [Figure 13] FIG. 13 is a partially cutaway side view showing the lower end of a safety protector according to the second embodiment. [Figure 14] FIG. 14 is a perspective view showing the operation of the upper part of the safety protector according to the second embodiment. [Figure 15] 15(a) and 15(b) are a front view and a side view showing a state in which the safety protector according to the second embodiment is used. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0016] [Embodiment 1] FIG. 1 is a partially cutaway perspective view showing a safety protector for a tank container according to a first embodiment of the present invention.

[0017] As shown in Figure 2, unlike ordinary containers which are constructed as rectangular parallelepiped boxes, the tank container 1 is constructed by inserting and fixing a roughly cylindrical tank body 2 containing contents such as liquid or powder into a rectangular parallelepiped frame body 3.

[0018] The International Organization for Standardization (ISO) has standardized containers to standardize transportation infrastructure and ensure the efficiency of transportation operations, and ISO-standardized containers have the same external dimensions (external dimensions) regardless of the manufacturer. ISO-standardized containers are available in multiple sizes, including 20-foot and 40-foot.

[0019] Like ordinary containers, the tank container 1 has a rectangular parallelepiped frame 3 formed to a size that complies with standards such as ISO. For example, if the tank container 1 complies with the 20-foot standard, the frame 3 has external dimensions of 6058 mm in length, 2438 mm in width, and 2591 mm in height.

[0020] The tank body 2 is formed in a substantially cylindrical shape from a metal such as stainless steel. The tank body 2 is provided with an openable manhole 4 at the front of its upper end surface, which allows the contents, such as liquid or powder, to flow in and out. Therefore, when the tank container 1 is used, for example, to allow the contents, such as liquid or powder, to flow in or out of the inside of the tank body 2, an operator must climb to the top of the tank body 2 to open or close the manhole 4.

[0021] The frame 3 of the tank container 1 is literally a rectangular parallelepiped frame, consisting of an upper frame 5 with a rectangular planar shape located at the top and a lower frame 6 with a rectangular planar shape located at the bottom, connected to each other by four support columns 7-10 located at each corner. The upper frame 5 is configured by connecting relatively long upper longitudinal beams 11 and 12 arranged along the longitudinal direction of the tank container 1 and relatively short upper cross beams 13 and 14 arranged along the lateral direction intersecting the longitudinal direction of the tank container 1 in a rectangular planar shape. Similarly, the lower frame 6 is configured by connecting relatively long lower longitudinal beams 15 and 16 arranged along the longitudinal direction of the tank container 1 and relatively short lower cross beams 17 and 18 arranged along the lateral direction intersecting the longitudinal direction of the tank container 1 in a rectangular planar shape. The upper cross beams 13 and 14 of the upper frame 5 and the support columns 7-10 are connected to each other by short braces 19-22, as shown in Figures 2 and 3. The upper cross beams 17, 18 of the lower frame 6 and the pillars 7-10 are also connected to each other by short braces 23-26.

[0022] As shown in FIG. 2, corner fittings 27 to 34 are attached to the frame 3 of the tank container 1 at each corner by means of welding or the like, in the same way as in a normal container.

[0023] The corner fittings 27-34 are intended for inserting and connecting a lifting jig for lifting the tank container 1 or a fixing jig for fixing the tank container 1 in a predetermined position. The corner fittings 27-34 are formed in a hollow, approximately rectangular parallelepiped shape, as shown in Fig. 4. The corner fittings 27-34 have insertion holes 35-37 on three surfaces exposed to the outside, through which a lifting jig for lifting the tank container 1 or a fixing jig for fixing the tank container 1 in a predetermined position can be inserted and connected.

[0024] Fig. 4 shows the corner fitting 28 arranged at the upper end portion on the right side of the rear of the frame 3 in Fig. 2. The insertion holes 35 opening in the upper end face or lower end face of the corner fittings 27 to 34 are all formed as elongated holes opening along the longitudinal direction of the tank container 1. Furthermore, the insertion holes 36, 37 opening in the side faces of the corner fittings 27 to 34 are all formed as elongated holes opening along the vertical direction.

[0025] As shown in Figure 2, the cylindrical tank body 2 is fixedly attached in a state where it is in contact with the inside of the rectangular parallelepiped frame 3. A valve 38 for removing the contents is provided below the rear end of the tank body 2. Steps 39 and 40 for workers to walk on are provided on both sides along the width direction and along the entire length along the length of the upper end of the frame 3 of the tank container 1.

[0026] The tank container 1 is provided with a ladder 41 fixed to one side of the rear end of the tank body 2, as an example of a climbing tool for workers to climb up and down to the top of the tank body 2.

[0027] Incidentally, the ladder 41 of the tank container 1 is made up of two vertical beams 42, 43 made of metal such as aluminum and multiple rungs 44 for footholds fixed at regular intervals, but when a worker goes up or down the ladder 41, there are only two vertical beams 42, 43 and the rung 44 for hands to rest on, and no handrails or the like are provided at the top end of the ladder 41. Therefore, when a worker goes up or down to the top of the tank body 2 of the tank container 1, particularly when the worker reaches the top of the ladder 41, there is a risk that the worker will lose his footing and fall from the tank container 1, as there is no member to support the worker's weight.

[0028] In particular, as shown in Fig. 3, the tank container 1 is transported by being placed on top of a transport vehicle 45 such as a truck or trailer that transports the tank container 1. Therefore, the top of the tank container 1, including the height of the loading platform of the transport vehicle 45, is quite high, and there is a risk of serious injury if a worker accidentally falls from the top of the tank container 1.

[0029] In recent years, demand for tank containers 1 has increased dramatically, and with the advancement of SDGs and other initiatives, the safety of various tasks is being reviewed, creating a need to ensure the safety of workers who operate or handle tank containers 1.

[0030] Therefore, in order to provide safety protective equipment for tank containers that can protect workers from the risk of falling when they use climbing equipment such as a ladder to climb up and down to the top of a tank container, the safety protective equipment for tank containers in this embodiment 1 is configured to protect workers from the risk of falling when they climb up and down to the top of a tank container transported by a vehicle, and is configured to include a support member that is arranged on the top of the tank container along the climbing equipment used by the worker to climb up and down, and has an engaging portion on its upper part that engages with a corner fitting arranged at the top end of the tank container, and has a fixing portion on its lower part that is fixed in a non-detachable state by being inserted into a corner fitting arranged at the bottom end of the tank container and rotated, and a winding means that is attached to the upper end of the support member and is capable of winding up an auxiliary wire connected to the worker.

[0031] That is, as shown in Figure 1, the safety protector 50 for the tank container in this embodiment 1 is broadly configured to include a support member 51 arranged along a ladder 41 for workers to climb up and down to the top of the tank container 1, and a safety block 52 (see Figure 6) attached to the upper end of the support member 51 and serving as an example of a winding means capable of winding up an auxiliary wire connected to the worker.

[0032] The support member 51 includes a support member body 53 that is arranged along the ladder 41 that workers use to climb up and down to the top of the tank container 1. The support member body 53 is formed in a long, thin cylindrical shape and made of, for example, carbon fiber reinforced plastics (hereinafter referred to as "CFRP") using carbon fiber. When the support member body 53 is made of CFRP, it is lighter and stronger than metals such as stainless steel or aluminum, and is excellent in terms of ensuring operability and safety.

[0033] As shown in FIGS. 1 and 5 , the upper part of the strut member body 53 is provided with a locking portion 54 that is locked to a corner fitting 28 arranged at the upper end of the tank container 1. Like the strut member body 53, the locking portion 54 is made of a metal such as CFRP or aluminum (A7075), and is formed as a rigid body with a generally U-shaped side surface. The locking portion 54 includes a fixed portion 55 that is fixed to the strut member body 53, an intermediate portion 57 that extends horizontally outward from the upper end of the opposing portion that faces the fixed portion 55, and an engaging portion 58 that is bent downward into an L-shape at the tip of the intermediate portion 57. The fixed portion 55 of the locking portion 54 is separate from the intermediate portion 57 and the engaging portion 58, and is fixed to a predetermined position on the strut member body 53 by means of screws 56 or the like while sandwiching the strut member body 53 together with the opposing portion of the intermediate portion 57. In addition, the fixing portion 55 of the engaging portion 54 may have an insertion hole that is inserted into the support member main body 53, and may be configured to be fixed at a predetermined position on the support member main body 53 by means of a screw 56 or the like while inserted into the support member main body 53.

[0034] 5, the support member main body 53 is fastened to the upper end of the tank container 1 by inserting the engaging portion 58 of the locking portion 54 from above into and engaging with the insertion hole 35 of the corner fitting 28 arranged at the upper end of the tank container 1. It is desirable that the side surface of the engaging portion 58 located on the fixing portion 55 side be formed into an arc-shaped cross section that matches the insertion hole 35 of the corner fitting 28.

[0035] 1, the support member 51 is provided at its lower end with a fixing portion 60 that is fixed to a corner fitting 33 arranged at the lower end of the tank container 1. Therefore, the locking portion 54 and the fixing portion 60 of the support member 51 are arranged along the longitudinal direction of the support member main body 53 at a distance that corresponds to the height of the tank container 1.

[0036] 7, the fixing part 60 is made of metal such as CFRP or aluminum (A7075), like the engaging part 54, and is formed in the shape of a vertically long rectangular parallelepiped. A part (detachable part) located on the upper front side of the fixing part 60 is separated from the fixing part 60, and is attached by clamping the lower end of the support member main body 53 together with the detachable part with a means such as a screw 62. The fixing part 60 may have an insertion hole (not shown) that is inserted through the support member main body 53, and may be configured to be fixed by a means such as a screw 62 when inserted into the lower end of the support member main body 53.

[0037] A rotating shaft 63 is rotatably provided at the bottom of the fixed part 60. An operating handle 64 for rotating the rotating shaft 63 is attached in a fixed loose state to the outer end of the rotating shaft 63.

[0038] Furthermore, a fixing plate 65 is provided at the end located on the inside (tank container 1 side) of the rotating shaft 63. The fixing plate 65 is fixed in a non-detachable state by being inserted into the insertion hole 36 of the corner fitting 32 arranged at the bottom end of the tank container 1 and rotated. As shown in Fig. 8, the fixing plate 65 is made of a long, narrow, rectangular flat plate or a rigid body with a substantially trapezoidal side surface.

[0039] As shown in FIGS. 8( a) and 8(b), the fixing portion 60 is fixed by inserting a fixing plate 65 fixed to the tip of the rotating shaft 63 from the front into the insertion hole 36 of the corner fitting 32 arranged at the bottom end of the tank container 1, and then rotating the operating handle 64 by 90 degrees to engage the fixing plate 65 inside the insertion hole 36 of the corner fitting 32. The fixing plate 65 is attached to the rotating shaft 63 so that it matches the orientation of the operating handle 64. Therefore, when the operating handle 64 is positioned vertically, as shown in FIG. 8(a), the fixing plate 65 also faces vertically. When the operating handle 64 is positioned horizontally, as shown in FIG. 8(b), the fixing plate 65 also faces horizontally and is inserted into and fixed in the insertion hole 36 of the corner fitting 32.

[0040] 1, a hanging block member 70 is provided at the upper end of the support member main body 53 to attach the safety block 52 in a suspended state. The hanging block member 70 is made of a metal such as CFRP or aluminum (A7075), just like the support member main body 53, and is formed as a rigid body with a generally I-shaped side surface. The hanging block member 70 is inserted into the support member main body 53 via an insertion hole, and is fixed to the upper end of the support member main body 53 by means of fixing rings 71 and 72 arranged above and below it using screws 73 or other means.

[0041] Furthermore, the suspension block member 70 is fixed in its vertical position by fixing rings 71 and 72, but is attached so that it can rotate 360 ​​degrees in a horizontal plane. However, taking into consideration the ease of operation by the worker, the suspension block member 70 may be configured so that the rotation angle is restricted so that it can rotate through an angle smaller than 360 degrees (for example, about 270 degrees).

[0042] 1, a generally U-shaped metal fitting 75 for attaching the safety block 52 to the tip of the arm portion 74 extending laterally from the hanging block member 70 is attached by a bolt 76, a nut 77, etc. As shown in FIG. 6, the safety block 52 is attached to the metal fitting 75 of the hanging block member 70 via a carabiner 78, etc.

[0043] The safety block 52 is a member for protecting the worker from falling. A wire (or rope) 80 that is connected to the body of the worker is housed in the safety block 52 so that it can be wound up. A weight 81 and a hook 82 are attached to the tip of the wire 80.

[0044] In the event of a worker falling, the safety block 52 locks onto the wire 80 to prevent the fall. The safety block 52 is also configured so that the wire 80 can be smoothly pulled out during normal worker movement, and can be wound up while applying a certain amount of tension to the wire 80 and supporting the worker's weight, so as not to interfere with the worker's movements.

[0045] In the above configuration, the safety protective equipment for tank containers according to this embodiment 1 is capable of protecting workers from the risk of falling when they use climbing equipment such as ladders to climb up and down to the top of a tank container, as follows.

[0046] That is, the tank container safety gear 50 according to this embodiment 1 is normally stored in a predetermined storage position, such as on the loading platform 45a of the transport vehicle 45 that transports the tank container 1, as shown in Fig. 3. When the transport vehicle 45 that transports the tank container 1 arrives at a predetermined location and a worker climbs onto the top of the tank body 2 of the tank container 1, the worker takes out the tank container safety gear 50 that has been stored in the predetermined storage position.

[0047] Unlike normal containers, the tank container 1 requires operations such as opening and closing the manhole 4 provided at the upper end of the tank body 2 when storing contents inside the tank body 2 or when removing contents stored inside the tank body 2 at the destination. Therefore, a worker needs to climb to the top of the tank container 1 while the tank container 1 is placed on the loading platform 45a of the transport vehicle 45 to open and close the manhole 4.

[0048] The tank container safety gear 50 taken out by the worker 90 is attached to the frame 3 of the tank container 1, as shown in Fig. 10. At this time, the wire 80 of the safety block 52 is pulled out to its lowest end. As shown in Fig. 5, the tank container safety gear 50 has its locking portion 54 locked by the worker 90 to the corner fitting 28 located at the upper end of the frame 3 of the tank container 1.

[0049] Furthermore, as shown in Figure 7, the safety protector 50 for tank containers has a fixing portion 60 located at its lower end fixed by a worker 90 to a corner fitting 32 located at the lower end of the frame 3 of the tank container 1.

[0050] Thereafter, as shown in Figure 10, the safety protective equipment 50 for tank containers is in a state where the hook 82 attached to the end of the wire 80 of the safety block 52 is engaged with the safety belt 91 of the worker 90, thereby connecting the worker 90 to the wire 80 of the safety block 52.

[0051] Then, the worker 90 climbs onto the loading platform 45a of the transport vehicle 45, and further climbs up to the upper end of the tank container 1 via the ladder 41 provided on the tank container 1. At this time, the wire 81 connected to the safety belt 91 of the worker 90 is wound up with a predetermined tension around the safety block 52 as the worker 90 climbs up to the upper end of the tank container 1.

[0052] Even if worker 90 steps off ladder 41 while climbing to the top of tank container 1, or if he unintentionally loses his balance and is in danger of falling from tank container 1, wire 81 is locked to worker 90's body by the action of safety block 52, preventing worker 90 from falling to the ground.

[0053] At this time, the worker's body is supported by the wire 81 locked by the action of the safety block 52, so the worker 90 can regain his posture and grab onto the ladder 41 or the like of the tank container 1 to safely descend from the tank container 1.

[0054] When removing the safety protector 50 for tank containers from the tank container 1, the operating handle 64 of the fixing part 60 is rotated 90 degrees counterclockwise to release the connection between the fixing plate 65 and the corner fitting 32 of the tank container 1, and the fixing part 60 is pulled forward and the support member main body 53 is lifted upward to release the engagement between the locking part 54 and the corner fitting 28 of the tank container 1, allowing it to be easily removed from the tank container 1.

[0055] [Embodiment 2] FIG. 11 is a partially cutaway perspective view showing a safety protector for a tank container according to a second embodiment of the present invention.

[0056] The safety protective equipment 50 for tank containers has a technical problem in that the support member 51 has a long support member body 53 that is longer than the height of the tank container 1, making it difficult to handle when removing the support member 51 from its storage location and installing it in the required position in the tank container 1.

[0057] Furthermore, the safety protector 50 for tank containers has a technical problem in that the support member main body 53 of the support member 51 is long, which limits the storage space and makes it difficult to store.

[0058] Furthermore, the tank container 1 in which the safety protector 50 for tank containers is used is manufactured in various sizes according to the capacity of the tank body 2. The capacity of the tank body 2 of the tank container 1 is, for example, 7 m 3 , 10.15mm 3 , 12m 3 , 13m 3 , 16.1m 3 , 23.3mm 3 , 36.5m 3 And so on.

[0059] As shown in Figure 2, the tank container 1 has different lengths of the support columns 7 to 10 depending on its capacity, and accordingly the height of the upper cross beam 13 relative to the lower cross beam 17 of the lower frame 6 varies. 3 In the case of 2326mm, 10.15mm 3 In the case of 2438mm, 12m 3 In the case of 1980mm and 2134mm, 16.1m depending on the type 3 2591mm, 23.3mm 3 In the case of 2670mm, 36.5m 3 In this case, the width varies from 2740mm to 2740mm.

[0060] Therefore, the safety protective equipment 50 for tank containers has a technical problem in that if the support member body 53 of the support member 51 has only one length, the safety protective equipment 50 will not fit the height of the tank container 1 and will not be able to be used, or even if it is used, the safety protective equipment 50 will not be able to be securely fixed to the tank container 1, and there is a risk that the safety of workers working on top of the tank container 1 will not be ensured.

[0061] Therefore, in the safety protector for a tank container according to the second embodiment of the present invention, the support member is divided into a plurality of members so that the length of the support member can be adjusted.

[0062] Furthermore, in the tank container safety protector according to the second embodiment of the present invention, the support members are configured to be applicable to tank containers 1 of different heights.

[0063] 11 and 12, in a tank container safety protector 50 according to the second embodiment of the present invention, a strut member body 53 of a strut member 51 is divided into two members, an upper end portion 53a and a lower end portion 53b. Both the upper end portion 53a and the lower end portion 53b of the strut member body 53 are formed in a long cylindrical shape. Furthermore, the outer diameter of the lower end portion 53b of the strut member body 53 is set smaller than the outer diameter of the upper end portion 53a, and the lower end portion 53b is configured to be insertable into the upper end portion 53a.

[0064] A plurality of adjustment holes 101, 102 (two in the illustrated example) including an adjustment hole for storage that fixes the lower end 53b when the lower end 53b is inserted are drilled in the upper end 53a of the support member main body 53. A lock pin 103 is inserted into the adjustment hole 101 of the upper end 53a of the support member main body 53 and is fixed in a state where it passes through an adjustment hole provided in the lower end 53b.

[0065] As shown in Figure 12, for example, two adjustment holes 101 and 102 are drilled in the upper end 53a of the support member main body 53, and a storage adjustment hole 104 and multiple (four in the illustrated example) adjustment holes 105 to 108 are drilled in the lower end 53b of the support member main body 53.

[0066] The adjustment hole 104 for storage is provided at a position near the fixed part 60 in the lower end part 53b of the support member main body 53.

[0067] The length of the support member main body 53 can be adjusted in eight stages by combining the two adjustment holes 101, 012 at the upper end portion 53a and the four adjustment holes 105 to 108 at the lower end portion 53b.

[0068] Furthermore, the tank container safety protector 50 according to the second embodiment may be configured so that the position of the locking portion 54 can be adjusted to match the height of the container frame of the tank container 1.

[0069] In this way, by making the length of the support member body 53 adjustable in eight stages, the capacity of the tank body 2 can be adjusted to 7 m according to the height of the tank container 1. 3 In the case of 2326mm, 10.15mm 3 In the case of 2438mm, 12m 3 In the case of 1980mm and 2134mm, 16.1m depending on the type 3 2591mm, 23.3mm 3 In the case of 2670mm, 36.5m 3 In this case, it will be possible to accommodate 2740mm etc.

[0070] 13, the tank container safety protector 50 according to the second embodiment is configured so that a coil spring S made of a compression spring, as an example of an elastic member, is inserted into the rotation shaft 63 of the operating handle 64 of the fixing part 60, and so that the fixing plate 65 is securely abutted against the end face of the insertion hole 36 of the corner fitting 32. By securely abutting the fixing plate 65 against the end face of the insertion hole 36 of the corner fitting 32, it is possible to prevent the fixing part 60 from separating from the corner fitting 32 due to misalignment of the fixing plate 65, etc.

[0071] In the above configuration, the safety protective equipment for tank containers according to the second embodiment can protect workers from the risk of falling when they use climbing equipment such as ladders to climb up and down to the top of multiple tank containers of different heights, as follows.

[0072] That is, as shown in FIG. 11, when the safety protector 50 for a tank container according to the second embodiment is stored, the lower end portion 53b is accommodated inside the upper end portion 53a of the strut member main body 53 of the strut member 51, thereby making it possible to shorten the length of the strut member main body 53 to about 1 / 3 to 1 / 2 compared to when in use.

[0073] Therefore, in the safety protector 50 for tank containers, the length of the support member body 53 of the support member 51 is significantly reduced, thereby improving portability and storability.

[0074] In addition, as shown in Figure 12, the safety protector 50 for tank containers in this embodiment 2 can adjust the length of the support member main body 53 in eight stages by combining two adjustment holes at the upper end 53a of the support member main body 53 and three adjustment holes at the lower end 53b.

[0075] As a result, according to the capacity of the tank body 2, 3 In the case of 2326mm, 10.15mm 3 In the case of 2438mm, 12m 3 In the case of 1980mm and 2134mm, 16.1m depending on the type 3 2591mm, 23.3mm 3 In the case of 2670mm, 36.5m 3 Even for tank containers 1 with different container frame heights, such as 2740 mm in the case of a tank container 1, the length of the support member main body 53 can be adjusted according to the height of the container frame, so that the safety protective equipment 50 for tank containers can be securely fixed to the tank container 1, thereby ensuring the safety of workers.

[0076] 3, the tank container safety protective equipment 50 according to the second embodiment is normally stored in a predetermined storage position such as on the loading platform 45a of a transport vehicle 45 that transports the tank container 1. When the transport vehicle 45 that transports the tank container 1 arrives at a predetermined location and a worker climbs onto the top of the tank body 2 of the tank container 1, the worker takes out the tank container safety protective equipment 50 that has been stored in the predetermined storage position.

[0077] As shown in Figure 11, the safety protector 50 for tank containers taken out by the worker 90 has the length of the support member body 53 of the support member 51 adjusted to a length that matches the height of the container frame of the tank container 1 by appropriately combining the two adjustment holes 101, 012 at the upper end 53a and the four adjustment holes 105 to 108 at the lower end 53b, and is fixed with a lock pin 103.

[0078] Then, the safety protector 50 for tank containers with the length of the support member 51 adjusted has its locking portion 54 locked by a worker 90 to the corner fitting 28 located at the upper end of the frame 3 of the tank container 1, as shown in Figure 14.

[0079] Furthermore, as shown in Figure 15, the safety protector 50 for tank containers has a fixing portion 60 located at its lower end fixed by a worker 90 to a corner fitting 32 located at the lower end of the frame 3 of the tank container 1.

[0080] Thereafter, as shown in Figure 15, the safety protective equipment 50 for tank containers is in a state where the hook 82 attached to the end of the wire 80 of the safety block 52 is engaged with the safety belt 91 of the worker 90, thereby connecting the worker 90 to the wire 80 of the safety block 52.

[0081] Furthermore, when removing the safety protector 50 for tank containers from the tank container 1, the operating handle 64 of the fixing part 60 is rotated 90 degrees counterclockwise to release the connection between the fixing plate 65 and the corner fitting 32 of the tank container 1, and the fixing part 60 is pulled forward and the support member main body 53 is lifted upward to release the engagement between the locking part 54 and the corner fitting 28 of the tank container 1, allowing it to be easily removed from the tank container 1.

[0082] Then, the safety protector 50 for tank containers removed from the tank container 1 is fixed by the lock pin 103 in a state in which the lower end 53b is stored inside the upper end 53a of the support member main body 53 of the support member 51, shortening its length, as shown in Figure 11.

[0083] Therefore, when the safety protector 50 for tank containers is stored, the length of the support member 51 is significantly shortened, making it easy to handle and store.

[0084] The other configurations and operations are the same as those of the first embodiment, and therefore the description thereof will be omitted. [Explanation of symbols]

[0085] 1. Tank container 2...Tank body 3…Frame body 4...Manhole 41...Ladder 50...Safety equipment for tank containers 51...Support member 52...Safety block

Claims

1. A safety protective equipment for tank containers that protects workers climbing up and down to the top of a tank container transported by a vehicle from the risk of falling, a support member that is arranged on the top of the tank container along the lifting tool used by the worker to ascend and descend, and that has an engaging portion at its upper part that engages with a corner metal fitting arranged at the upper end of the tank container, and a fixing portion at its lower part that is fixed in a non-detachable state by being rotated while being inserted into a corner metal fitting arranged at the lower end of the tank container; a winding means attached to an upper end of the support member and capable of winding up an auxiliary wire connected to the worker; Tank container safety equipment.

2. 2. The safety protector for a tank container according to claim 1, wherein the winding means winds up the auxiliary wire while applying a tension to the auxiliary wire that supports the weight of the worker.

3. 2. A safety device for a tank container according to claim 1, wherein said winding means is arranged rotatably in a horizontal plane.

4. 2. A safety protector for a tank container according to claim 1, wherein the support members are made of fiber reinforced plastic using carbon fiber.

5. 2. The safety protector for a tank container according to claim 1, wherein the locking portion of the support member is formed into a generally L-shaped side surface and is locked by inserting its tip into an engaging hole opened in an upper end surface of a corner fitting arranged at the upper end of the tank container.

6. 2. The safety protector for a tank container according to claim 1, wherein the fixing portion of the support member is provided with an operating lever that, when turned, rotates the fixing piece while it is inserted into an engaging hole of a corner fitting arranged at the lower end of the tank container.

7. Safety protective equipment for a tank container as described in Claim 1, wherein the support member is arranged along the climbing device consisting of a ladder installed on one side of the rear of the tank container along the vertical direction of the tank container.

Images