TWI716605B - Container fixing device - Google Patents

Abstract

Provided is a container fixing device capable of suppressing deformation of an opening of a corner fitting. The container fixing device includes a flange 2 positioned outside a slot of the corner fitting of the container, a support rod 4 provided on the flange 2 and fitted into the elongated opening of the slot, a lower cone (fitting portion) 41 provided on the support rod 4 and fitted into a cavity of the slot, and a movable convex portion 43 which is rotatable and is urged so as to protrude laterally from the vertical surface of the support rod 4. The movable convex portion 43 is provided with a contact portion 43b which is not in contact with the center side in the longitudinal direction of the elongated opening and is in contact with each end sides in the longitudinal direction of the elongated opening.

Description

Container Fixing Device

The present invention relates to a container fixing device that can fix containers stacked on top of each other, or fix the containers to a trailer or the cargo compartment of a truck.

In Patent Document 1, a so-called latch lock type container fixing device has been disclosed. As shown in Figures 19 and 20, the above-mentioned container fixing device is provided with: a flange part 1002, which is located between the corner fittings 1100a of the container 1100 stacked up and down; the upper pillar part 1003 and the lower side The pillar part 1004 protrudes from the flange part 1002; the upper cone 1031 is engaged with the slot 1150 of the upper cabinet corner fitting 1100a; and the lower cone 1041 is engaged on the lower side The slot 1150 of the corner fitting 1100a of the cabinet. The lower cone 1041 is composed of a fixed convex portion 1042 and a movable convex portion (latch) 1043 provided on the opposite side of the fixed convex portion 1042. The movable protrusion 1043 automatically enters the slot of the corner fitting by the elastic force of the elastic member. In addition, the movable convex portion 1043 is rotatably supported with a shaft 1044 provided on the fixed convex portion 1042 as a center.

Here, as shown in Figure 22, the slot 1150 of the corner fitting 1100a is composed of a cavity 1150a and an opening 1150b in the shape of a long hole. The cavity 1150a is formed around the corner fitting 1100a. The inner side of the wall; the opening 1150b is formed in the surrounding wall, and is connected to the cavity 1150a, which is smaller than the cavity 1150a. Then, the opening portion 1150a has: an opening longitudinal surface portion A, which is formed by the thickness of the surrounding wall portion; an entrance corner portion B (taper portion), which is located on the entrance side of the opening longitudinal surface portion A; an outer surface portion C, which is orthogonal to the opening vertical surface A and connected to the entrance corner B; the inner corner D, which is located on the back side of the opening vertical surface A; and the inner surface E, which is orthogonal to and connected to the opening vertical surface A In the inner corner D.

[Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent No. 4781786

The above-mentioned conventional container fixing device has an open part on the center side of the lower pillar part 1004, and has a shape in which pillar parts are separated on both sides of the open part. Then, the movable convex portion 1043 is already located in the open portion, and is supported by the shaft 1044 so as to be rotatable. That is, the movable convex portion 1043 is located on the center side of the lower pillar portion 1004. Therefore, as in the hatched area G shown in FIG. 21, the portion where the movable convex portion 1043 contacts the inner corner D or the inner surface E of the corner fitting 1100a becomes the elongated hole-shaped opening 1150b In the vicinity of the center in the longitudinal direction of the opening 1150b, a large load is applied near the center in the longitudinal direction of the opening 1150b.

Therefore, there is a possibility that the edge near the center in the longitudinal direction of the opening 1150b is deformed into a convex shape, and the corner fitting 1100a may become defective (the strength of the corner fitting is reduced).

In addition, there is known a type of container fixing device that does not have a movable convex portion in the lower cone, but only has a fixed convex portion such as the fixed convex portion 1042 described above. Even in this type of container fixing device, the edge near the center in the longitudinal direction of the opening 1150b is easily deformed into a convex shape, and the corner fitting 1100a may become defective.

The present invention is in view of the above situation, and its subject is to provide a container fixing device that can suppress the deformation of the opening of the corner fitting.

In order to solve the above-mentioned problems, the container fixing device of the present invention is characterized by comprising: a flange part located outside the slot of the corner fitting of the container; and a pillar part provided on the flange part and embedded in the above The slot has an opening in the shape of an elongated hole; and a fitting portion is provided on the pillar portion and is embedded in the hollow portion of the slot; in the fitting portion, a portion that does not contact the elongated hole is provided The center side of the opening in the longitudinal direction is a contact portion that contacts each end side in the longitudinal direction.

According to the above configuration, the fitting portion is provided with contact portions that do not contact the center side of the opening of the elongated hole shape, but contact each end side of the longitudinal direction, so the load is easy Applied near the edge of the above-mentioned opening. Thereby, deformation of the vicinity of the center of the opening portion into a convex shape can be suppressed, and the corner fitting can be prevented from becoming defective.

The fitting portion may be provided with a movable convex portion that is pushed so as to protrude laterally from the vertical surface of the pillar portion, and the contact portion may be provided on the movable convex portion. The width in the longitudinal direction of the movable convex portion may be wider than the width in the longitudinal direction of the pillar portion.

The movable convex portion may have a shaft portion, and the contact portions are provided on both sides of the shaft portion.

The said shaft part may be detachably provided in the shaft support recessed part formed in the said pillar part.

Alternatively, the movable convex portion may be supported by a shaft member inserted into a shaft support hole formed in the pillar portion.

The movable convex portion may be provided with a plate-shaped portion connecting the contact portions.

On the other hand, the fitting portion may be provided with a fixing convex portion protruding laterally from the vertical surface of the pillar portion, and the contact portion may be provided on the fixing convex portion.

The contact portion may be formed by a groove or a recess formed on the center side of the fixed convex portion.

According to the present invention, it is possible to prevent the corner fitting of the container from being deformed into a convex shape near the center of the opening of the corner fitting, and to prevent the corner fitting from becoming defective.

1‧‧‧Container fixing device

2.1002‧‧‧Flange

3. 1003‧‧‧Upper pillar part (second pillar part)

4. 1004‧‧‧Lower pillar part (pillar part)

4A‧‧‧Lower pillar part (pillar part)

4a‧‧‧Tapered side of pillar

4b‧‧‧Shaft support recess

4c, 43d‧‧‧Hole

4d‧‧‧Shaft support

4f‧‧‧Shaft support hole

21‧‧‧Fixed leverage

21b‧‧‧Spring

21c‧‧‧Lower part

21d‧‧‧pin

31、1031‧‧‧Upper cone (second fitting part)

31a‧‧‧Sloping part

32‧‧‧Vertical hole

41、1041‧‧‧Lower cone (fitting part)

42、1042‧‧‧Fixed convex part

43、1043‧‧‧Movable convex part (latch)

43A‧‧‧movable convex part

43a‧‧‧Horizontal axis (shaft)

43b‧‧‧Contact

43c‧‧‧Plate

43e‧‧‧Spring Pin

43f‧‧‧Shaft support hole

44‧‧‧Coil spring

45‧‧‧Long bolt (shaft member)

46‧‧‧Nut

100, 101, 1100‧‧‧Container

100a, 101a, 1100a‧‧‧ cabinet corner accessories

150、151、1150‧‧‧Slot

150a, 151a, 1150a‧‧‧cavity

150b, 151b, 1150b‧‧‧ opening

300‧‧‧Pressing member

420、430‧‧‧First inclined plane

420a‧‧‧Contact

420b‧‧‧slot

421, 431‧‧‧ second inclined plane

422, 432‧‧‧ convex top

433‧‧‧Rotation stop

1044‧‧‧Axis

A‧‧‧Open longitudinal face

B‧‧‧Entrance corner (tapered part on slot side)

C‧‧‧Outside

D‧‧‧Inner corner

E‧‧‧Inner face

F‧‧‧Gap

H, G‧‧‧Hatch area

θ‧‧‧angle

Figure 1 is an explanatory diagram showing the container fixing device, the corner fittings on the bottom of the upper container, and the corner fittings on the upper surface of the lower container according to one embodiment of the present invention.

Fig. 2 is a schematic explanatory diagram showing the upper pillar portion, upper fitting portion, and pressing member of the container fixing device of Fig. 1.

Fig. 3 is an explanatory diagram for explaining the operation of attaching the upper fitting portion of the container fixing device of Fig. 1 to the slot of the corner fitting.

Fig. 4 is an explanatory diagram for explaining the operation of attaching the upper fitting portion of the container fixing device of Fig. 1 to the slot of the corner fitting.

Figure 5 is a six-sided view of the container fixing device of Figure 1. In the bottom view, hatching shows the contact area between the opening of the corner fitting and the movable protrusion.

Figure 6 is a six-sided view of the movable protrusion of the container fixing device shown in Figure 1.

Fig. 7 is a four-sided view (a plan view and a bottom view are omitted) showing the movable convex portion of the container fixing device of Fig. 1 omitted.

Figure 8A is a perspective view of the container fixing device of Figure 1.

Fig. 8B is a perspective view of the container fixing device of Fig. 1 with the movable protrusion removed.

Figure 9 is a cross-sectional view of the container fixing device of Figure 1.

Fig. 10 is a cross-sectional view of another embodiment of the container fixing device.

Fig. 11 is an explanatory diagram showing a state in which the lower side pillar portion and the lower side fitting portion of the container fixing device of Fig. 1 are separated from the lower corner fitting.

Fig. 12 is an explanatory diagram showing the state in which the lower side pillar portion and lower side fitting portion of the container fixing device of Fig. 1 are separated from the lower corner fitting.

Fig. 13 is an explanatory diagram showing a state in which the lower side pillar portion and the lower side fitting portion of the container fixing device of Fig. 1 are separated from the lower corner fitting.

Fig. 14 is an explanatory diagram showing a state where the lower side pillar portion and the lower side fitting portion of the container fixing device of Fig. 1 are separated from the lower cabinet corner fitting.

Fig. 15A is a schematic side view of a container fixing device according to another embodiment of the present invention.

Fig. 15B is an explanatory diagram showing the fixing protrusion of the container fixing device of Fig. 15A.

Figure 16 is a perspective view of another embodiment of the container fixing device.

Fig. 17 is a perspective view of the container fixing device shown in Fig. 16 with the movable protrusion removed.

Figure 18 is a cross-sectional view of the container fixing device shown in Figure 16.

Figure 19 is an explanatory diagram showing the engagement state between the conventional container fixing device and the corner fittings of the upper and lower containers.

Figure 20 is an explanatory diagram showing the conventional container fixing device.

Fig. 21 is an explanatory diagram showing the contact area between the opening part of the corner fitting of the conventional container fixing device and the movable convex part with hatching.

Figure 22 is an explanatory diagram showing the corner fittings of the upper and lower containers.

Hereinafter, an embodiment of the present invention will be described based on the drawings. As shown in Fig. 1, a corner fitting 100a is provided on the lower corner of the upper container 100, and a corner fitting 101a is provided on the upper corner of the lower container 101. The container fixing device 1 is located between the corner fitting 100a and the corner fitting 101a, and is used to connect and fix the upper container 100 and the lower container 101.

The slot 150 of the corner fitting 100a is composed of a cavity 150a and an opening 150b in the shape of a long hole. The cavity 150a is formed on the inner side of the surrounding wall of the corner fitting 100a; the opening 150b is It is formed on the above-mentioned peripheral wall part, and is connected to the above-mentioned hollow part 150a, and is smaller than the above-mentioned hollow part 150a. Then, the opening portion 150a has: an opening longitudinal surface portion A, which is formed by the thickness of the surrounding wall portion; an entrance corner portion B (taper portion), which is located on the entrance side of the opening longitudinal portion A; an outer surface portion C, which is orthogonal to the opening vertical surface A and connected to the entrance corner B; the inner corner D, which is located on the back side of the opening vertical surface A; and the inner surface E, which is orthogonal to and connected to the opening vertical surface A In the inner corner D.

Similarly, the slot 151 of the corner fitting 101a is composed of a hollow portion 151a and a substantially long hole-shaped opening 151b. The hollow portion 151a is formed on the inner side of the peripheral wall of the corner fitting 101a; The opening 151b is formed in the surrounding wall, and is connected to the cavity 151a, and is smaller than the cavity 151a. Then, the opening portion 151a has: an opening vertical surface portion A formed by the thickness of the surrounding wall portion; an entrance corner portion B (slot side tapered portion) located on the entrance side of the opening vertical surface portion A The outer surface C is orthogonal to the opening longitudinal surface A and connected to the entrance corner B; the inner corner D is located on the inner side of the opening longitudinal surface A; and the inner surface E is directly aligned with the opening longitudinal surface A Cross and connect to the inner corner D.

The container fixing device 1 is provided with a flange portion 2. The flange 2 is located outside the slots 150 and 151 of the corner fittings 100a and 101a. Then, an upper pillar portion (second pillar portion) 3 is provided on the upper surface side of the flange portion 2 and a lower pillar portion (pillar portion) 4 is provided on the lower surface side. In the locked state in the container fixing device 1, the flange portion 2 is in contact with the outer surface C of the corner fittings 100a, 101a. In addition, the boundary between the lower pillar portion (pillar portion) 4 and the flange portion 2 has an inclination along the inclination of the entrance corner portion B (slot side taper portion), and is formed with The pillar portion side tapered portion 4a that is in contact with the entrance corner portion B.

On the upper side of the upper pillar portion 3, an upper cone (second fitting portion) 31 is provided. The upper pillar portion 3 is fitted into the opening portion 150b, and the upper cone 31 is fitted into the cavity portion 150a. In addition, a lower taper (fitting portion) 41 is provided on the lower side of the lower pillar portion 4 described above. The lower pillar portion 4 is fitted into the opening portion 151b, and the lower cone 41 is fitted into the cavity portion 151a.

As shown in FIG. 2, the upper pillar portion 3 is configured to have a substantially parallelogram in cross section, and the upper pillar portion 3 can be rotated within a predetermined range in the cavity 150a of the slot 150 of the corner fitting 100a. Then, as shown in FIG. 5, the upper side portion of the fixed lever 21 provided on the flange portion 2 is protruded toward the opening portion 150b of the slot 150, so that the upper taper 31 is fixed to the slot 150 Inside.

As shown in Figure 3, when the upper cone 31 is placed in the slot 150, the longitudinal direction of the upper cone 31 is aligned with the longitudinal direction of the opening 150b, and the container The fixing device 1 is inclined to insert the upper cone 31 into the cavity 150a from the opening 150b. Then, as shown in Fig. 4, the container fixing device 1 is rotated approximately 90 degrees in the horizontal plane. Thereby, the longitudinal direction of the upper taper 31 intersects the longitudinal direction of the substantially long hole shape of the opening 150b.

Furthermore, as shown in Fig. 5 and the like, the fixed lever 21 is rotatably supported by a horizontal shaft part not shown, and the upper part faces the upper surface of the flange part 2 by the elastic force of the spring 21b. Side protruding. In addition, the lower portion 21c of the fixed lever 21 is exposed from the lower surface of the flange portion 2. By operating the lower portion 21c, the upper portion of the fixed lever 21 can be submerged in the flange portion. 2 sides. Furthermore, by bringing the pin 21d provided on the lower surface side of the flange portion 2 into contact with the lower portion 21c, the rotation of the fixed lever 21 is prevented.

In addition, as shown in Fig. 4 and the like, the upper pillar portion 3 is provided with a pressing member 300 for pressing the opening vertical surface portion A of the cabinet corner fitting 100a, and the opening vertical portion A of the cabinet corner fitting 100a forms the opening portion 150b. The pressing member 300 is made of, for example, a coil spring, and is inserted into a horizontal hole formed by the vertical surface of the upper pillar 3. Then, the pressing member 300 protrudes from the vertical surface in a natural length state, and as described above, the longitudinal direction of the upper cone 31 intersects the longitudinal direction of the substantially elongated hole shape of the opening 150b In the state of, touch the opening vertical surface A, and press the opening vertical surface A.

An inclined portion 31a is formed in a portion of the upper cone 31 facing the flange portion 2 side. The inclined portion 31a is formed in such a manner that one end of the inclined portion 31a can be located in the cavity portion 150a and the other end can be located in the opening portion 150b. In addition, a concave portion 31b is formed at the boundary between the other end and the upper pillar portion 3, and the inclined portion 31a is not prevented from contacting the inner corner portion D.

As described above, when the container fixing device 1 is rotated approximately 90 degrees in a horizontal plane, the pressing member 300 contacts the opening vertical surface A and presses the opening vertical surface A. By this pressing, the inclined portion 31a is pressed against the inner corner D located on the opposite side of the opening vertical surface portion A.

Furthermore, as shown in FIG. 2, a vertical hole portion 32 is formed in the upper pillar portion 3 and the upper cone 31, and a receiving recess formed on the inner wall of the vertical hole portion 32 accommodates the pressing member 300 Basal side. In addition, the pressing member 300 can be seen from the vertical hole portion 32. For example, a tool may be inserted through the vertical hole portion 32 to squash and deform a part of the pressing member 300 and prevent the pressing member 300 from falling off. Moreover, instead of the pressing member 300 itself contacting the opening vertical surface portion A, a contact member provided at the front end of the pressing member 300 may contact the opening vertical surface portion A.

As shown in Fig. 1, the lower pillar portion 4 is formed with a vertical surface portion parallel to the long side portion of the opening portion 151b. The lower cone 41 is the same as the container fixing device described in Patent Document 1 (Japanese Patent No. 4781786), including: a fixing convex portion 42 protruding from one longitudinal surface; and protruding from the other longitudinal surface The movable protrusion (latch) 43. The most protruding portion of the fixed convex portion 42 and the most protruding portion of the movable convex portion 43 are offset up and down, and the movable convex portion 43 is located closer to the flange 2 side (upper side) than the fixed convex portion 42 .

The fixed convex portion 42 has a first inclined surface 420, a second inclined surface 421, and a convex top 422 located between the inclined surfaces. The first inclined surface 420 is in contact with the inner corner D located on the inner side of the opening 151b during the stretching action during unloading. The second inclined surface 421 is in contact with the entrance corner B located on the entrance side of the opening vertical surface portion A during the lowering operation for locking and the stretching operation during unloading. The first inclined surface 420 and the second inclined surface 421 are not limited to a linear shape, and may have a curved shape or a broken line shape. Then, the convex top portion 422 is in contact with the opening longitudinal surface portion A during the lowering action for locking and the stretching action during unloading.

The movable convex portion 43 has a first inclined surface 430, a second inclined surface 431, and a convex top 432 located between these inclined surfaces. The first inclined surface 430 is in contact with the inner corner D located on the inner side of the opening 151b during the lowering operation for locking and the stretching operation during unloading. The second inclined surface 431 is in contact with the entrance corner B located on the entrance side of the opening vertical surface portion A during the lowering operation for locking and the stretching operation during unloading. The first inclined surface 430 and the second inclined surface 431 are not limited to a linear shape, and may have a curved shape or a zigzag shape. In addition, the surface of the first inclined surface 430 may be formed with, for example, minute concavities and convexities, so that it is not easy to slide in the contact between the first inclined surface 430 and the inner corner D. Then, the convex top portion 432 will contact the opening vertical surface portion A during the lowering action for locking and the stretching action during unloading. Furthermore, the movable convex portion 43 is formed with a rotation preventing portion 433, and the rotation preventing portion 433 prevents the movable convex portion 43 from rotating (protruding) beyond a predetermined amount.

As shown in FIGS. 6, 8A, and 8B, the movable convex portion 43 includes: a horizontal shaft (shaft) 43a; contact portions 43b, which are provided on both sides of the horizontal shaft 43a; and a plate-shaped portion 43c is provided in such a way that these members are connected throughout the contact portion 43b. The portion of the contact portion 43b that constitutes the first inclined surface 430 is not in contact with the center side in the longitudinal direction of the elongated hole-shaped opening 151b, but in contact with each end side in the longitudinal direction. Then, in the plate-shaped portion 43c, a hole portion 43d that accommodates a part of the coil spring 44 is formed. Moreover, the said plate-shaped part 43c may be continuously formed in the said horizontal shaft 43a. The above-mentioned movable protrusion 43 can be integrally produced by casting or the like. In addition, by having the above-mentioned plate-shaped portion 43c, the rigidity of the movable convex portion 43 is improved.

In addition, as shown in FIG. 7, the lower pillar portion 4 is formed with a shaft support concave portion 4 b that supports the horizontal shaft 43 a of the movable convex portion 43. The shaft support recessed portion 4b is formed in a substantially semicircular arc shape in cross section, and the horizontal shaft 43a is detachable from the direction intersecting the axial direction of the horizontal shaft 43a. In addition, a hole 4c for accommodating the other part of the coil spring 44 is formed in the lower pillar portion 4. Then, as described above, since the two contact portions 43b are provided at both ends of the horizontal shaft 43a, they can be arranged so as to sandwich the lower pillar portion 4.

The movable convex portion 43 is rotated by the elastic force of the coil spring 44 and protrudes laterally from the longitudinal surface of the lower pillar portion 4. In addition, during the lowering operation for locking and the stretching operation during unloading, the movable convex portion 43 rotates against the elastic force of the coil spring 44 and temporarily enters the lower pillar portion 4 side. That is, the movable convex portion 43 is formed in a state protruding laterally from the vertical surface of the lower pillar portion 4 and a state in which it enters the lower pillar portion 4 side.

Fig. 9 is a schematic cross-sectional view of the A-A arrow in the state where the corner fitting 101a is omitted from the bottom view in Fig. 5. It is also clear from the 9th figure that the angle θ formed by the pushing direction (coil center) of the movable convex portion 43 by the coil spring 44 and the attaching and detaching direction of the movable convex portion 43 is set to 90 degrees or less . By setting it at such an angle, the above-mentioned movable convex portion 43 is prevented from falling off. Furthermore, in the example shown in FIG. 9, in order to accommodate the coil spring 44, a part of the center part of the said horizontal shaft 43a is hollowed out. The coil spring 44 may be inserted after the movable protrusion 43 is installed, or the coil spring 44 may be inserted first, and then the movable protrusion 43 may be installed while reducing the coil spring 44 with a clamp.

On the other hand, as shown in the embodiment shown in Fig. 10, the angle formed by the spring direction (coil center) of the movable protrusion 43 formed by the coil spring 44 and the attachment/detachment direction of the movable protrusion 43 can be made θ is formed to be larger than 90 degrees. In this case, for example, a spring pin 43e can be used to prevent the movable convex portion 43 from falling off. The spring pin 43e is provided so that its axial direction crosses the attaching and detaching direction of the movable convex portion 43. In addition, in the movable protrusion 43, a part of the central portion is cut away so as not to hinder its rotation. In addition, the spring pin 43e can be installed by being press-fitted from the hole 4f formed in the lower taper 41, and can also be formed with a structure in which a bottom is formed from the side of the shaft support recess 4b in advance. The hole portion, instead of such a hole portion 4f, and with the movable convex portion 43 protruding, a pin or the like (either a spring pin or a ball pin) is inserted from the upper side in Figure 10 The above-mentioned hole. The coil spring 44 is positioned above the pin and the like.

As shown in Figure 1, the flange portion 2 is in contact with the outer surface C (upper surface) of the corner fitting 101a, the lower taper 41 enters the slot 151, and the movable convex portion 43 comes from the lower side The state where the vertical surface of the pillar portion 4 protrudes laterally is the locked state. Then, in this locked state, by the coil spring 44, in the middle of the rotation of the movable convex portion 43 that is pushed in the clockwise direction in Figure 1, the first inclined surface 430 will be in contact with the The inner corner D on the back side of the opening 151b maintains this contact state. The horizontal axis 43a is not at a position directly below the inner corner D, but on the left side in Figure 1 (the center side of the opening 151b). Furthermore, in the locked state where the first inclined surface 430 has contacted the inner corner D, the first inclined surface 430 is in an inclined state, and one end of the first inclined surface 430 is located in the cavity 151a, The other end of the first inclined surface 430 is located in the opening 151b.

When the unloading operation is performed from the locked state shown in Fig. 1, as shown in Fig. 11, the container fixing device 1 is not lifted straight upwards, but along the fixed convex portion 42 side. The entrance corner B is inclined upward (upper left in Figure 11). At this time, the movable convex portion 43 urged by the coil spring 44 can further rotate in the clockwise direction. In other words, since the movable convex portion 43 can be further rotated, the container fixing device 1 can be lifted obliquely upward along the inclination of the entrance corner B.

As shown in FIG. 12, when the movable convex portion 43 rotates further, the movable convex portion 43 can be prevented from rotating by the rotation preventing portion 433. In this rotation preventing state, the length (width) from the front end of the convex top 432 to the other vertical surface of the lower pillar 4 located on the back side thereof is shorter than the shorter side of the opening 151b The width is slightly shorter to set a predetermined clearance. Furthermore, as a configuration that does not provide such a clearance, when the lower taper 41 passes through the opening 151b, the movable convex portion 43 may be brought into contact with the opening vertical surface portion A.

As shown in Fig. 13, when the container fixing device 1 is further pulled up, because the first inclined surface 420 of the fixing protrusion 42 contacts the inner corner D, it moves along the first The inclined surface 420 is inclined upward (upper right in FIG. 13) for lifting. In addition, by this operation, the movable convex portion 43 is rotated in the counterclockwise direction.

As shown in FIG. 14, when the container fixing device 1 is further pulled up, the convex top 422 moves while contacting the opening vertical surface A. The length (width) from the front end of the convex top 422 to the vertical surface of the lower cone 41 on the opposite side of the convex top 522 is slightly shorter than the width of the opening 151b in the short-side direction, thereby Set the predetermined clearance.

According to the above configuration, since the contact portions 43b provided on both sides of the horizontal shaft 43a of the movable convex portion 43 are located on both sides of the support portion 4 so as to sandwich the support portion 4, the two contact portions 43b is not in contact with the center side of the opening 151b of the corner fitting 101a, but as shown by the hatched area H in the bottom view of FIG. 5, it can be in contact with the vicinity of the edge of the opening 151b. Thereby, it is easy to apply a load to the vicinity of the edge of the opening 151b, and the center of the opening 151b can be suppressed from being deformed into a convex shape, and the corner fitting 101a can be prevented from becoming defective.

However, as shown in Figure 19, the container fixing device disclosed in Patent Document 1 is locked when the upper cone 1031 is inserted into the slot 1150 of the corner fitting 1100a. A gap F is formed between 1031 and the inner corner D and inner face E described above. Moreover, in the locked state where the lower cone 1041 is fitted into the slot 1150 of the corner fitting 1100a, a gap F is also generated between the movable convex portion 1043 and the inner corner portion D and the inner surface portion E.

Here, when the container 1100 is stacked on a ship, when the ship is tilted, the container 1100 will also tilt. At this time, assuming that there is no such gap F, the inclination of the container 1100 will converge to the same degree as the inclination of the ship. However, when the above-mentioned gap F is generated at each fixed position of the upper and lower containers 1100, 1100, the inclination due to the above-mentioned gap F will accumulate between the stacked containers, and it is impossible to prevent the upper container 1100 from tilting more than the ship Tilt greatly. That is, in the above-mentioned conventional container fixing device, it is difficult to stack a large number of containers due to the above-mentioned gap F, and there is a problem that the container transportation fee becomes relatively high.

According to the container fixing device 1, since the flange portion 2 can contact the outer surface C of the corner fitting 101a, and the movable convex portion 43 is in contact with the inner side of the opening portion 151b during the rotation operation. When the inner corner portion D is in a locked state, the gap between the movable convex portion 43 and the slot hole 151 can be reduced. In this way, more containers can be stacked, and advantages such as reduced container transportation costs can be obtained. On the other hand, in the above-mentioned locked state, since the movable protrusion 43 is in the middle of the rotation operation, the movable protrusion 43 is detached from the corner fitting 101a by the movement of the container fixing device 1 It can rotate further while contacting the inner corner D. By the rotation of the movable convex portion 43 during the detachment, the corner fitting 101a and the container fixing device 1 can be allowed to move away from each other while shifting in an oblique direction, and the lower pillar portion 4 and the The movable convex portion 43 passes through the opening 151b in the initial stage. That is, by pulling up the container, the container fixing device 1 can be automatically detached from the corner fitting 101a.

In addition, when the pillar portion side tapered portion 4a is formed, when the container fixing device 1 is detached from the cabinet corner fitting 101a, it follows the inclination of the entrance corner B on the fixing convex portion 42 side. The pillar portion side tapered portion 4a is guided in an oblique direction, so that the detachment can be performed smoothly.

Moreover, when the inclined portion 31a is crimped to the inner corner D of the corner fitting, the gap between the upper fitting portion (second fitting portion) 31 and the slot 151 can be reduced. Therefore, more containers can be stacked, and the advantages of reducing container transportation costs can be obtained.

Of course, the container fixing device of the present invention is not limited to a structure that can suppress the generation of the gap F as described above, and the container fixing device having a structure that generates the gap F as described above may be provided with the movable convex portion 43. The structure of the contact portion 43b described above. In addition, the container fixing device of the present invention is not limited to fixing the containers stacked up and down, and may have a structure that can fix the containers to the trailer or the cargo compartment of the truck. For example, it may be a structure which fixes the said flange part 2 to a cargo compartment with a bolt etc.

In addition, the container fixing device of the present invention is shown in FIGS. 15A and 15B, and may be provided with a pillar portion 4 embedded in the opening portion 151b, and a lower cone that is embedded in the cavity portion 151b of the slot 151 Body (fitting portion) 41, and the lower taper body 41 does not have a movable convex portion 43 but only has a structure of a fixed convex portion 420. The fixing protrusion 420 is located below the edge in the longitudinal direction of the opening 151b in a locked state in which the fixing protrusion 420 has been fitted into the cavity 151a. Even in such a structure, contact portions 420a contacting the edges of the opening 151b of the cabinet corner fitting 101a can be provided at both ends of the fixing protrusion 420. Even with such a structure, as shown by the hatched area H in Figure 15B, the two contact portions 420a are not in contact with the center side of the opening 151b of the corner fitting 101a, but can be in contact with the end side . Thereby, since it is easy to apply a load to the vicinity of the edge of the opening 151b, it is possible to prevent the center of the opening 151b from being deformed into a convex shape, and it is possible to prevent the corner fitting 101a from becoming defective.

Furthermore, in the above example, although it is on the center side of the upper surface of the fixing convex portion 420, the groove 420b is formed so as to reach the front end side of the fixing convex portion 420 from the pillar portion 4 side. The contact portion 420a described above is formed, but it is not limited to this. Basically, since the side of the upper surface of the fixing convex portion 420 that is closer to the longitudinal side of the pillar portion 4 is in contact with the edge of the opening portion 151b, it may also be on the longitudinal surface of the pillar portion 4 A concave portion is formed on the side, thereby forming the aforementioned contact portion 420a. Moreover, in order to make the said lower taper body (fitting part) 41 easily enter the said opening part 151b, you may make the front end side of the said lower taper body 41 sharp.

In the above example, although the movable convex portion 43 has a horizontal shaft (shaft portion) 43a, and the horizontal shaft 43a is detachably provided in the shaft support recess 4b formed by the lower pillar portion (pillar portion) 4 , But not limited to such a structure. For example, as shown in Figs. 16, 17 and 18, it is possible to provide a structure capable of supporting the movable convex portion 43A by a long bolt 45 as a shaft member provided in the lower pillar portion (pillar portion) 4A .

In such a structure, for example, a shaft support portion 4d is formed in the lower pillar portion 4A, and a shaft support hole 4f is formed in the shaft support portion 4d along the horizontal direction. Moreover, 43 f of shaft support holes are formed in 43 A of said movable convex parts along a horizontal direction. The lateral width of the shaft support portion 4d is formed to be shorter than the interval between the contact portions 43b of the movable convex portion 43A, and the shaft support portion 4d can be positioned between the contact portions 43b and the movable convex portion 43A can be fitted in The above-mentioned lower pillar portion 4A. Then, in the thus-inserted state, the long bolt 45 is inserted from the side into the shaft support hole 43f and the shaft support hole 4f, and the nut 46 is screwed to the front end side of the long bolt 45, thereby The movable convex portion 43A can be rotatably supported in the lower pillar portion 4A.

Furthermore, a boring hole may be provided at the end side of the shaft support hole 43f in advance, so that the head of the long bolt 45 and the nut 46 are respectively accommodated in the boring hole. In addition, the shaft member is not limited to the long bolt 45, and a spring pin may be used. In this case, the diameters of the shaft support hole 43f and the shaft support hole 4f are different, and the spring pin can be loosely fitted into the shaft support hole 43f and press-fitted into the shaft support hole 4f, for example. Or, on the contrary, the spring pin is press-fitted into the shaft support hole 43f and loosely fitted into the shaft support hole 4f.

Above, although the embodiment of the present invention has been described with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various corrections or changes can be added to the illustrated embodiment within the same range as the present invention or within an equal range.

2‧‧‧Flange

3‧‧‧Upper pillar part (second pillar part)

21‧‧‧Fixed leverage

21b‧‧‧Spring

31‧‧‧Upper cone (second fitting part)

41‧‧‧Lower cone (fitting part)

42‧‧‧Fixed convex portion

43‧‧‧Movable convex part (latch)

43b‧‧‧Contact

43c‧‧‧Plate

433‧‧‧Rotation stop

Claims (8)

A container fixing device is provided with: a flange part located outside the slot of a corner fitting of a container; a pillar part is arranged on the flange part and is embedded in the slot-shaped opening of the slot; And the fitting part is provided on the pillar part and is fitted into the cavity of the slot; the fitting part is provided not contacting the center side of the elongated hole in the longitudinal direction but The contact portion that contacts each end side in the longitudinal direction is provided with a movable convex portion that springs to protrude laterally from the vertical surface of the pillar portion in the fitting portion, and the movable convex portion is provided with the In the contact portion, the width in the longitudinal direction of the movable convex portion is wider than the width in the longitudinal direction of the pillar portion. A container fixing device is provided with: a flange part located outside the slot of a corner fitting of a container; a pillar part is arranged on the flange part and is embedded in the slot-shaped opening of the slot; And the fitting part is provided on the pillar part and is fitted into the cavity of the slot; the fitting part is provided not contacting the center side of the elongated hole in the longitudinal direction but Contact the contact parts on each end side in the longitudinal direction, The fitting portion is provided with a movable convex portion that is pushed so as to protrude laterally from the longitudinal surface of the pillar portion, the movable convex portion has a shaft portion, and the contact portions are provided on both sides of the shaft portion . The container fixing device described in claim 1 or 2, wherein the shaft portion is detachably provided in the shaft support recess formed in the pillar portion. The container fixing device described in claim 1 or 2, wherein the movable convex portion is supported by a shaft member inserted into a shaft support hole formed in the pillar portion. The container fixing device described in claim 1 or 2, wherein the movable convex portion is provided with a plate-shaped portion connecting the contact portions. The container fixing device described in claim 3, wherein the movable convex portion is provided with a plate-shaped portion connecting the contact portions. The container fixing device described in claim 4, wherein the movable convex portion is provided with a plate-shaped portion connecting the contact portions. A container fixing device is provided with: a flange part located outside the slot of a corner fitting of a container; a pillar part is arranged on the flange part and is embedded in the slot-shaped opening of the slot; And the fitting part is provided on the pillar part and is embedded in the cavity of the slot; the fitting part is provided with a shape that does not contact the long hole The central side of the opening in the longitudinal direction is a contact portion that contacts each end side in the longitudinal direction. The fitting portion is provided with a fixed convex portion protruding laterally from the longitudinal surface of the pillar portion, and The fixing convex portion is provided with the contact portion, and the contact portion is formed by a groove or a recess formed on the central side of the fixing convex portion.

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