JPS6240948Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a folding container. More specifically, a tightening mechanism that stands up the end wall of the collapsible container and holds it perpendicular to the floor surface;
In order to fold the end walls onto the floor and stack multiple units to form a unit with the same height H as a single unfolded container (Fig. 25), tightening is used to connect the upper and lower folded containers. The present invention relates to a folding container tightening device that can be used together with the folding container.

(Prior Art) In conventional folding containers, for example, there is a special method in which a single tightening device performs tightening to hold the end walls perpendicular to the floor surface and tightening to connect containers with folded end walls stacked vertically. 1978
-16278 had a large size, so there were problems with its operability. In other words, the upward movement and rotation of the tightening device requires lifting the entire weight of the tightening device directly with one hand, and then rotating the head of the tightening device with the other hand, which makes the operation extremely difficult. It was very difficult. Further, special tools are required for the tightening operation, which must be kept in the folding container, and there is a risk that these tools will be lost during long-term container transportation.

The present applicant improved the above-mentioned tightening device and previously disclosed a ``tightening device for folding containers'' (Utility Application No. 170,485/1985 (Kokoku No. 31,978/1987)). The present invention further improves this.

However, this tightening device had a problem with its operability. To explain the case of tightening, the tightening operation required four steps: 1 pushing up operation, 2 holding operation, 3 rotating operation, and 4 tightening operation. In particular, among the four operations mentioned above, the holding operation requires a lot of force, as it requires pushing up with one hand and holding with the other hand. The present invention aims to automate such a holding operation and simplify the operating procedure.

(Structure of the device) This device is a collapsible container consisting of a column base having corner fittings at the top and bottom and end walls pinned to the floor or column base in a foldable manner, the container comprising a shaft rod having a cone at the top and a threaded portion at the bottom and a small diameter portion at the bottom of the threaded portion, a guide collar that is guided by a guide plate and can move up and down relative to the shaft rod, a cylindrical collar at the bottom of the guide collar, a nut body that is integrally fitted with a ratchet fastener and screws into the threaded portion of the shaft rod at the bottom of the cylindrical collar, a cylinder body having a handle that is fitted into the small diameter portion at the bottom end of the shaft rod, a hanging body rotatably held by the cylindrical body, and a hanging body pivotally supported at one end on the lower end of the hanging body,
The gist of the invention is a fastening device for a folding container which has a fastener having a handle for up and down movement pivoted to a partition wall W of a fastening box whose middle part is located inside the base, and a holding means consisting of a holder, spring and handle which is provided within the hollow metal fitting to hold the fastener in the raised and lowered positions, thereby allowing it to be used both to fix the end walls and to fasten the folded container.

(Example) Reference numeral 1 is a floor of a folding container, and a flooring material is placed on a portion surrounded by vertical beams 2, 2 and horizontal beams 3, 3. Column bases 4 (which have this height in the folded state) are fixed to both ends of the vertical beams 2, 2. Corner fittings 5 are fixed to the top and bottom of the column base 4. Reference numeral 6 denotes an end wall, and a corner fitting 7 is fixed to the top thereof, and the lower end can be bent around a hinge 8 to be raised and lowered. Reference numeral 9 is a corner post on both sides of the end wall, which is reinforced with reinforcing plates 10.

Reference numeral 11 denotes a tightening device according to the present invention, which maintains the end wall 6 in an upright state and connects and maintains the top and bottom of the folded container.

FIG. 3 shows an enlarged detailed view of the tightening device 11. 1
Reference numeral 2 denotes a tightening device which is the main part of the tightening device, and when the end wall 6 is folded, as shown in FIG. It is stored in a fastener box partitioned by a partition wall W provided at the bottom. The hollow metal fitting 13 has a long hole 14 in the upper wall 13a as shown in FIG.
A round hole 15 is provided in the lower wall 13b. Reference numeral 16 denotes a guide plate provided downward on the half circumferential surface of the elongated hole 14 in the upper wall. Note that 17 is a hole for assembling a holder 31, which will be described later.

5-13, exploded views of the fastener 12 are shown. Reference numeral 18 denotes a shaft rod of the tightening device 12, which has a cone 19 cut out in two parallel planes at its top. The bottom surface of the cone 19 has a minor axis a of the cone 19.
A prismatic portion 19a (FIG. 6) having one side of is provided. A bottom surface 19c is provided on both sides of the prismatic portion 19a and is spaced slightly upward from the bottom surface 19b of the prismatic portion. 19d are inclined surfaces provided at both ends of the bottom surface 19e.

20 is the threaded part at the bottom of the shaft rod 18, 21 is the threaded part 2
The small diameter portion 22 provided at the lower end of the 0 is a pin hole provided in the small diameter portion 21. 23 (FIG. 12) is a bottomed cylindrical body having a hole 23a in the center with a diameter slightly larger than the small diameter portion 21 and a small diameter hole 23b in the bottom surface. 2
3c is a pin hole bored in the side body of the cylindrical body, and 23d is a rotating handle fixed to the side body of the cylindrical body 23.

Reference numeral 24 (FIG. 13) denotes a hanging body, which consists of a cylindrical portion 24a that is smaller in diameter than the hole 23a of the cylindrical body 23 and larger than the hole 23b, and a small diameter portion 24b that is smaller than the hole 23b. 24c is a slit provided in the small diameter portion 24b, and 24d is a pin hole provided in the small diameter portion.

25 (Fig. 9) is a guide collar in the shape of a cylinder cut out on parallel planes, and the diameter d of the cylinder before cutting on parallel planes and the width w of the parallel planes are the long diameter d of the long hole 14 shown in Fig. 4. ′ and the width w′ of the parallel plane. 25a is a recess on the upper surface, and 25b is a hole into which the shaft rod 18 is inserted. Slanted portions 25c and 25d are provided on the upper and lower sides of the guide collar 25. 25e is a cylindrical portion protruding from the lower part of the guide collar 25.

26 (FIG. 11) is in color. 27 (8th
The nut body shown in FIG. 2 is composed of a cylindrical portion 27a, a hexagonal body 27b, and a cylindrical portion 27d having a small diameter stepped portion 27c on the lower surface of the hexagonal body 27b. Reference numeral 27e denotes a central threaded portion, and a ratchet wheel fastener 36, which will be described later, is fitted into the hexagonal portion 27b which is threaded into the threaded portion 20 of the shaft rod 18.

As shown in FIG. 3, in the above-mentioned tightening tool 12, first, the guide collar 25 and then the collar 26 are inserted into the shaft rod 18 from below, and then the nut body 27 is screwed into the threaded portion 20. and pawl wheel fastener 36
is fitted into the hexagonal portion 27b of the nut body 27. Although not shown, a commercially available C-shaped retaining ring is inserted into the stepped portion 27c to maintain the position of the ratchet wheel fastener 36. Furthermore, after the hanging body 24 is fitted and supported in the hole 23a of the cylindrical body 23, the shaft rod 18 is inserted into the hole 23a.
The small diameter portion 21 at the lower end is inserted, and the pin hole 22 of the shaft rod 18 and the pin hole 23c of the cylindrical body 23 are aligned and fixed with a bolt 28 (FIG. 3). 29 is a handle and one end is pinned to the small diameter part 24b of the hanging body 24.
0, and the intermediate portion is pinned 31 to the partition wall w. As a result, the tightening tool 12 moves up and down.

32 (FIG. 5) is a holder that holds the tightening tool 12 in the raised position and the lowered position. The holder 32 has parallel arms 32b extending from both ends of a cylindrical shaft portion 32a.
is extending. The arm 32b is provided with a stepped portion 32c that engages with and disengages from the inclined surface 19d of the cone 19 or the inclined surface 25d of the guide collar 25. 32d
32e is a hole provided in the shaft portion 32a, and 32e is a set screw hole provided in the shaft portion 32a perpendicular to the hole 32d.

Reference numeral 33 denotes a spring, which constantly urges the holder 32 toward the shaft rod 18. 34 is a T-shaped handle. As shown in FIG. 11, the shaft portion 34a of the T-shaped handle 34 is rotatably supported at both ends of the hollow metal fitting 13. The holding body 32 and the spring 33 are supported. The T-shaped handle 34 and the holding body 32 are integrated with a set screw 35.

Next, the ratchet wheel fastener 36 will be explained with reference to FIGS. 14 to 18. The ratchet wheel tightening tool 36 is composed of a block body 37 and a clamping body 38.
A hexagonal hole 39 in the center and a gear 40 on the side.
There is a groove 4 for fitting a retaining ring 41 (Fig. 19) near the upper and lower ends.
It is equipped with 2. 43 is a cylindrical portion having a slightly smaller diameter than the root diameter of the gear 40.

The holding plate 38 (FIGS. 17 and 18) has a hole 44 in the center for holding the block body 37 therein. 45 is a holding piece that holds the upper and lower holding plates 38, 38 horizontally. 46 is a pawl, which is supported by a pin 47 between the upper and lower holding plates 38, 38. Claw 46
is a symmetrical protruding pawl 46 on the side facing the gear 40.
a, which engages with the gear 40. The pawl 46 has a ball 50 inside a hole 48 formed in the holding piece 45 and which is constantly urged outward by a spring 49.
engages with the protrusion 46b on the rear surface to maintain meshing with the gear 40.

The holding plate 38 is fixed to the block body 37 by a retaining ring 41 at one end and a bolt 51 at the other end. 52 is a handle supported by a pivot pin 53.

Now, the operation of projecting the tightening tool 12 upward from the stored state shown in FIG. 3 and then turning it through 90 degrees to bring it into the tightened state will be described. In the following, a case will be described in which the end wall 6 is held upright and tightened, but the same procedure can be used when the end wall is folded and connected vertically as shown in FIG. 25.

1 When the tightening device 12 is in the retracted state, the holding body 3
The second step portion 32c engages with the inclined surface 19d of the cone 19 and maintains its position (FIG. 3).

2 From the state of item 1) above, move the vertical movement handle 29
If you hold this and push it down, the tightening tool 12
is pushed upward (double-dashed line in Figure 3).

3 At that time, the tip of the stepped portion 32c of the holder 32 slides on the parallel plane of the guide collar 25, and the guide collar 2
The stepped portion 32c sinks into the inclined surface 25d of No. 5, the two engage, and the raised position of the tightening tool 12 is maintained (FIG. 20).

4 Release the handle 29 once.

5 Folding position of end wall 6 (two-dot chain line in Figure 1)
The patient is then raised to an upright position (solid line in Figure 1).

6. If you hold the handle 29 again and push it further down from the state in item 3), the tightening tool 12 will rise further. At this time, the bottom surface 19b of the square portion 19a of the cone 19 is made to be above the upper surface 54a of the receiving seat 54 of the end wall 6 (double-dashed line of the cone 19).
(Figure 20).

7 In this state, hold the handle 23d and pull it.
Rotate it 90 degrees (Figure 21).

8 Release the handle 29. Then, the tightening tool 12
The bottom surface 19c is the top surface 54 of the receiving seat 54 of the end wall 6.
Sit on seat a (Figure 22). At this time, the square portion 19a of the cone 19 is positioned within the elongated hole 54b of the receiving seat 54, and free rotation of the cone 19 is restricted (FIG. 23).

9 Next, remove the handle 52 (first
4) and rotate it repeatedly, the nut body 27 is rotated, and the nut body 27 is rotated against the bottom surface of the hollow metal fitting 13.
Tightened.

If more than 10 operations are performed at the four corners of the collapsible container, the end wall 6 will remain upright.

11 When folding a collapsible container, you can do it by doing exactly the opposite of the above.

As described above, according to the present invention, the lifting and lowering position holding operation of the tightening device 12 is changed from manual operation to an automatic operation method of the holding body using an elastic body, so the operating procedure is simplified and the operability of the tightening device 11 is improved. Now I can improve it even more.

This allows the folding end wall 6 to stand upright as well as
It becomes easy to stack several folded containers and tighten them to form a unit, which greatly contributes to improving not only operability but also transportation efficiency.

[Brief explanation of the drawing]

Figure 1 is a partial side view of the folding container. Figure 2 is a left side view of Figure 1. FIG. 3 is a detailed view of the section shown by the arrow in FIG. FIG. 4 is a view taken along the - arrow in FIG. Figure 5 is a side view of the shaft rod. FIG. 6 is a perspective view of the shaft head. FIG. 7 is an upper right side view of FIG. 5. Figure 8 is a side view of the nut body. FIG. 9 is a perspective view of the guide collar.
FIG. 10 is a perspective view of the holder. Figure 11 is color 2
6 side view. FIG. 12 is a perspective view of the cylindrical body 23. FIG. 13 is a perspective view of the hanging body 24. FIG. 14 is a plan view of the ratchet wheel tightening tool. FIG. 15 is a front view of the ratchet wheel tightening tool. FIG. 16 is a partially sectional front view of the block body. FIG. 17 is a partially sectional front view of the clamping plate. FIG. 18 is a plan view of the clamping plate. FIG. 19 is a plan view of the retaining ring. Second
Figure 0 shows the state in which the tightening tool is pushed up. FIG. 21 shows a state in which the tightening tool is further pushed up from the state shown in FIG. 8 and the cone is rotated 90 degrees. FIG. 22 shows the cone seated in the seat on the end wall. FIG. 23 shows the relationship between the cone and the receiving seat on the end wall, and is a view taken in the direction of the arrow in FIG. 22. Figure 24 is - of Figure 22.
Arrow view. FIG. 25 shows a state in which the collapsible containers are folded and stacked and tightened. In the diagram; 1...floor (of the container), 2...
Vertical beam, 3...Horizontal beam, 4...Column base, 5...Corner fitting,
6... End wall, 7... Corner fitting, 8... Hinge, 9...
... Corner pillar, 10 ... Reinforcement plate, 11 ... Tightening device, 1
2... Tightening tool, 13... Hollow metal fitting, 14... Long hole, 15... Round hole, 16... Guide plate, 17...
Assembly hole (of the holding body), 18... shaft rod, 19...
Cone, 19a...Prismatic portion, 19b...Bottom surface (of the prismatic portion), 19c...Bottom surface, 19d...Slope surface,
20... Threaded part, 21... Small diameter part, 22... Pin hole, 23... Cylindrical body, 23a... Hole, 23b...
Small diameter hole, 23c... Pin hole, 23d... Rotating handle, 24... Hanging body, 24a... Cylindrical part, 24
b...Small diameter part, 24c...Slit, 24d...
Pin hole, 25... Guide collar, 25a... Upper surface recess, 25b... Hole, 25c, 25d... Inclined part,
25e... (lower protruding) cylindrical part, 26... collar, 27... nut body, 27a... cylindrical part, 27
b...Hexagonal body, 27c...Small diameter stepped portion, 27d...
Cylindrical part, 27e... Center screw part, 28... Bolt, 29... Handle, 30... Pin, 31...
Pin, 32... Holder, 32a... Shaft, 32b
... Arm, 32c ... Step part, 32d ... Hole (provided in the shaft), 33 ... Spring, 34 ... T-shaped handle, 35 ... Set screw, 36 ... Rattle wheel tightener, 37 ... Block body, 38 ... Clamping plate, 39
... (Hexagonal) hole, 40 ... Gear, 41 ... Retaining ring, 42 ... (Retaining ring) insertion groove, 43 ... Cylindrical portion, 44 ... (Holding the block body) hole, 4
5... Holding piece, 46... Pawl, 46a... Protruding claw, 46b... Protrusion, 47... Pin, 48...
Hole (in the holding piece), 49... Spring, 50...
...Ball, 51...Bolt, 52...Handle,
53... Pivot pin, 54... (end wall) receiving seat.

Claims (1)

[Scope of utility model registration request] A folding container consisting of a column base 4 located at the four corners of a floor 1 and having corner fittings 5 above and below, and an end wall 6 pinned 8 to the floor 1 or column base 4 so that it can be folded, a cone is attached to the top. 19 at the bottom screw part 2
0 and a small diameter portion 21 at the bottom of the threaded portion 20, a guide collar 25 that is movable up and down relative to the shaft 18 while being guided by a guide plate 16, and a cylindrical collar at the bottom of the guide collar 25. 26 and the cylindrical collar 26
The nut body 27 is integrally fitted with the ratchet tightener 36 and is screwed into the threaded portion 20 of the shaft rod 18, and the nut body 27 is fitted and supported by the lower end small diameter portion 21 of the shaft rod 18. Cylindrical body 2 having a handle 23d
3, a hanging body 24 rotatably held by the cylindrical body 23, and a partition wall W of a tightening box having one end pivoted to the lower end of the hanging body 24 and an intermediate part provided inside the column base 4. Pivotally supported handle 29 for vertical movement
A holding means consisting of a holding body 32, a spring 33, and a handle 34 for holding the fastening tool 12 in the raised position and the lowered position is provided in the hollow metal fitting 13, and the end wall 6 is fixed. A folding container tightening device that can be used both for tightening a folded container and for tightening a folded container.