JPH0118546Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Related Industrial Field) The present invention relates to a folding container. To be more specific, the end walls are erected and held tightly in a position perpendicular to the floor, and the end walls are folded onto the floor and stacked on top of one another. This invention relates to a tightening device for a folding container that can tighten and hold upper and lower containers folded and stacked in order to unitize them to the same size as the height of the container.

(Prior art) In conventional folding containers, there is a tightening mechanism that holds the end walls perpendicular to the floor surface (see mating pin 37 in Figure 5 of Japanese Patent Publication No. 16091/1983), and a clamp that holds the end walls perpendicular to the floor surface. Separate tightening devices were used for each container (refer to Utility Model Application Publication No. 80432/1983), in which multiple folded containers were stacked and connected to form a unit. The tightening device is large and robust in terms of strength, so it is heavy and difficult to handle. Also, at least 8 pieces on top and bottom in one folding container.
This is not desirable from the viewpoint of efficiency of tightening work. Furthermore, when operating these tightening devices, a working tool such as a hammer is required, making the operation extremely difficult.

(Problems to be Solved by the Invention) The present invention consists of tightening the end wall upright and holding it perpendicular to the floor, and placing the end wall on top of the folded container. To provide a tightening device that can perform tightening when a plurality of different containers are stacked and connected to form a unit with one tightening device, and can be operated without requiring any tools during the work. It is something.

(Means for solving problems through invention) A cross beam that is located at the end of the floor and connects the left and right column bases that have corner fittings on the top and bottom, and an end wall that is pivotally connected between the floor surface and the top of the cross beam so that it can rise and fall. In this folding container, both ends of the cross beam can be vertically retracted into the partition wall adjacent to the column base, and the end wall can be tightened to a position perpendicular to the floor surface, and the end wall can be folded to fit the container. A tightening device is provided on top of the container, which can also be used to tighten the upper and lower containers by stacking other similarly folded containers. This tightening device includes a cone, a shaft that is integral with the cone, has a screw at the bottom, and a handle pinned to the lower end, and a shaft that is loosely fitted to the shaft and is movable up and down but not rotatable at the bottom of the cone. a collar fitted into the shaft; a collar loosely fitted onto the shaft below the collar;
A block body located at the lower part of the collar and fixed to the shaft, a locking block having a concave notch on the outer periphery, a threaded portion on the inner periphery, and screwed to the shaft, and a handle. A fastening tool including a ring-shaped rotating member mounted on a locking block, a pedestal having an elongated hole provided in the partition wall, and a pedestal having an elongated hole attached to the upper part of the pedestal. The pedestal is located inside the lower part of the end wall corner column and has a long hole, and the corner fitting has a long hole on the lower surface adjacent to the lower end corner fitting of the column base, and the corner fitting has a long hole on the lower surface. This device can be used both for fixing an end wall, whose center is coincident with the axis of the tightening tool, and for connecting and tightening a folded container on top of a similarly folded container.

(Example) In FIGS. 1 and 2, reference numeral 10 denotes vertical beams on both sides of the container floor in the longitudinal direction, and column bases 11 are fixed to both ends of the vertical beams. Corner fittings 12 are installed at the top and bottom of the column base 11.
is fixed. Reference numeral 13 denotes an end wall, a corner fitting 14 is fixed to the top, and the lower end is foldable around a pin 15. Reference numeral 16 denotes an end wall corner column, which is reinforced with a reinforcing plate 17. 18 (Fig. 2) is a tightening device;
This maintains the upright state of the end wall 13.

Now, both ends of the floor surface F are sloped surfaces 19 that slope toward the end walls, and correspondingly, the ends of the vertical beams 10 are also sloped in the same manner. Due to this inclination, the end wall 13
When the reinforcing plate 17 is folded toward the floor F,
Store the part properly and set it to the desired height H (Fig. 1)
It can be compactly stored within.

FIG. 3 is a detailed sectional view of the tightening device 18. 2
0 is housed in a partition wall w provided inside the column base 11, as shown in FIG. Inside the corner fitting 12 fixed to the upper end of the column base 11 is a long hole 23 having a circular hole in the center, similar to the pedestal 21 which has a cross-shaped long hole 22 (FIG. 6) with a phase shift of 90 degrees. (FIG. 7) A pedestal 24 is fixedly installed.

Reference numeral 25 denotes a pedestal attached to the inside of the lower part of the end wall corner post 16, and has a long hole 26, so that the end wall 13
When it stands upright, it is tightened by the tightening tool 20 to maintain the upright position. 27 is a cross beam, and the tightening device 18 is provided between the column base 11 and the cross beam 27.

FIG. 9 is a detailed perspective view of the fastener. 28 is a cone integrally formed on the top of the shaft 29. axis 2
A screw 30 is provided at the bottom of 9, and a handle 31 is pivotally supported at the bottom end by a pin 32. A collar 33 is loosely fitted onto the shaft 29 and has an oval cross section. The collar 33 has a vertical groove 34 (sixth
) is provided, which fits into a guide plate 35 fixed to the cross beam 27, making it impossible to rotate. 36 is a cylindrical collar, 37 is a block body having an oval upper part and a cylindrical lower part, and is fixed to the shaft 29 with a set bolt 37a (FIG. 3).

Reference numeral 33 denotes a stepped cylindrical locking block, the inner diameter of which is screwed into the threaded portion 30, and the smaller outer diameter portion of which is fitted with a ring-shaped rotating member 41.
is loosely fitted. A handle 39 is pivotally attached to the ring-shaped rotating member 41 with a pin 40. A retaining ring 42 holds the rotating member 41 from the locking block 38 so that it does not fall off.

When the handle 39 is not in use, it hangs down as shown by the imaginary line c in FIG. When it is desired to rotate the ring-shaped rotating member 41 together, it is operated at the a position in FIG. 10, that is, the horizontal position. Locking block 3
8 is provided with arc-shaped notches 43 at regular intervals on its circumferential surface, with which the tip of the handle 39 engages.
Correspondingly, the tip 44 of the handle 39 has an arcuate hook. A concave notch 43 having a radius slightly larger than that of the handle tip 44 and slightly larger than the width of the handle 39 is provided at the lower part of the large diameter circumferential surface of the locking block 38.

The handle 39 engages in the notch 43 of the locking block 38 when it is in the horizontal position a or the hanging position c. In the horizontal position a, when the handle 39 is turned, the locking block 38 also turns at the same time. When it is in the hanging position c, it is the position when not in use and is also the storage position. When the handle 39 is in the diagonally upward position b, it comes off the notch 43 of the locking block 38, and only the ring-shaped member 41 rotates.

Further, the screw tightening and loosening operations for the threaded portion 30 of the shaft 29 of the locking block 38 are performed as follows. That is, when the handle 39 is raised from the c position to the a position and rotated clockwise, it is rotated together with the locking block 38 and tightened. Since the tightening device 18 is stored in a narrow space and its rotation angle is restricted, the handle 39 is raised to position b and only the ring-shaped member 41 is returned counterclockwise. Then, the handle 39 is returned to the horizontal position again, the tip 44 of the handle 39 is locked in the notch 43 of the locking block 38, and the handle 39 is turned. By repeating this process, the locking block 38 can be tightened or loosened.

(Fixing the end wall in a vertical state) Next, a method of fixing the end wall in a vertical state using the tightening device 18 will be described below.

(1) From the retracted state, hold the handle 31 and push it upwards (Fig. 11).

(2) When the handle 31 is turned 90 degrees in the pushed-up state, the ring-shaped rotating member 41 to which the cone 28, block 37, locking block 38, and handle 39 are pivotally connected and the shaft 29 rotate simultaneously (first
Figure 2).

(3) After standing the end wall 13 upright and fitting the cone 28 into the long hole 26 of the pedestal 25, turn the handle 31 on.
Rotate 90° (Figure 13).

(4) Turn the handle 39 and lock the locking block 38.
Tighten and secure (Figure 14).

(5) Reverse operation loosens the tightening device.

Next, in order to stack and fix the folded containers, a special corner fitting 45 having a long hole 46 on the bottom surface for connecting the folded containers vertically is provided at the lower end of the column base 11. Since it is adjacent to the inside of the ordinary corner fitting 12 (FIGS. 15 and 16), it is tightened in the same manner as when fixing the end wall 13 thereto. Naturally, the dedicated corner fitting 45 and the tightening device 18 are provided concentrically.

(Effects) As explained above, the present invention can be used both for tightening the end walls of a folding container and for tightening when stacking multiple folded containers to form a unit. Tightening devices that can be used18
This provided a great advantage in terms of structure and weight.

[Brief explanation of the drawing]

FIG. 1 is a side view of a container in which the present invention is implemented.
Figure 2 is also an end view. FIG. 3 shows the tightening device of the present invention when the end wall is upright. FIG. 4 is a sectional view showing the storage state of the tightening device. FIG. 5 is a view taken along the arrow in FIG. FIG. 6 is a cross-sectional view taken from FIG. FIG. 7 is a cross-sectional view taken from FIG. Figure 8 is the − of Figure 4.
Cross-sectional view. FIG. 9 is a perspective view of the tightening device. FIG. 10 is a diagram showing the relationship between the locking block and the handle. Figure 11~
FIG. 14 is an explanatory diagram of the operation of the tightening device. FIG. 15 shows the folded container in its tightened state. Figure 16 is a detailed diagram of the dedicated corner fittings. In the figure; F...floor surface, 10...vertical beam, 11
... Column base, 12 ... Corner fitting, 13 ... End wall, 14
... Corner fitting, 15 ... Hinge, 16 ... End wall corner post, 17 ... Reinforcement plate, 18 ... Tightening device, 19 ...
... Inclined surface, 20 ... Tightening tool, 21 ... Pedestal, 22
... Long hole, 23 ... Long hole, 24 ... Pedestal, 25 ...
...Pedestal, 26...Long hole, 27...Horizontal beam, 28...
Cone, 29...shaft, 30...screw, 31...handle, 32...pin, 33...collar, 34...
... Groove, 35 ... Guide plate, 36 ... (cylindrical) collar, 37 ... Block body, 37a ... Set bolt, 38 ... Locking block, 39 ... Handle,
40... Pin, 41... Ring-shaped rotating member, 42
... Retaining ring, 43 ... Concave notch, 44 ... (handle) tip, 45 ... (dedicated) corner fitting, 46
...Long hole.

Claims (1)

[Scope of utility model registration request] A folding container comprising a cross beam 27 located at the end of the floor and connecting left and right column bases 11 having corner fittings 12, and an end wall 13 pivotally connected between the floor surface and the top of the cross beam 27 so as to be able to rise and fall, Both ends of the cross beam 27 can be vertically retracted into the partition wall W adjacent to the column base 11, and can be tightened to a position perpendicular to the floor surface F and the end wall 13 can be folded. A tightening device 18 is provided on top of the container, which can also be used to tighten the upper and lower containers by stacking other similarly folded containers. , a shaft 29 having a screw 30 at the bottom and a handle 31 pinned to the bottom end; a collar 33 loosely fitted onto the shaft and movable up and down but not rotatable and fitted into the bottom of the cone; A collar 36 is loosely fitted to the shaft 29 at the bottom, a block body 37 is fixed to the shaft 29 at the bottom of the collar 36, a concave notch 43 is provided on the outer periphery, and a threaded portion is provided on the inner periphery. A locking block 38 screwed onto the shaft and a handle 3
9 and a ring-shaped rotating member 41 mounted on a locking block 38; and a long hole provided in the partition wall w to house the fastening tool 20 in the partition wall w. a pedestal 24 having 23;
A pedestal 21 which also has an elongated hole 22 and is provided on the upper part of the pedestal 24, a pedestal 25 which is located inside the lower part of the end wall corner column 16 and has an elongated hole 26, and a pedestal 25 adjacent to the lower end corner fitting 12 of the column pedestal 11. and a corner fitting 45 having an elongated hole 46 on the lower surface, and the elongated holes 22, 23, 26, 4
fixing of the end wall 13, characterized in that the center of each of the ends 6 coincides with the axis of the tightening device 20, and connecting a folded container with a similarly folded container on top of the folded container. A folding container tightening device that can also be used for tightening.