JPH0640100Y2 - Foldable container - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention is a box having an open upper surface in which side plates are screwed to each side of a rectangular bottom plate so as to be tiltable inward, and the side plates are erected and connected to each other. It has a structure that can be assembled into the body.For example, when transporting replenishment items, the parts are stored in the assembled box body and sent out, the replenishment items are taken out, and the box that is no longer needed is disconnected from the side plate. , A foldable container that is folded back, reassembled and used for shipping.

(B) Prior art: The side plate of the foldable container is connected by using bolts and nuts, or a connector using a latch is used, and the side plate has at least one side plate so that articles can be easily taken in and out. It is known that it can be folded outward from an intermediate portion.

(C) Problems to be solved by the invention It is better for the assembly to be as simple as possible, and the assembled box body must be sturdy. In the conventional collapsible container, the thing to be bolted is solidly assembled, but the bolting work is complicated.
Further, a connector using a latch is easy to assemble but easily disengages. Particularly, in the case of a device having a side plate that can be folded outward from an intermediate portion, for example, it is connected to a lower side plate. Forget it, or make a mistake in the connection order,
There were some cases where they could not be connected.

D. Means for Solving the Problems Although the present invention is easy to assemble, it cannot be assembled unless a correct coupling procedure is taken, and the once assembled box body may come off after the side plates are securely connected. It is a foldable container that does not have a structure such that a pair of facing side plates is divided into an upper plate and a lower plate with a horizontal line as a boundary at an intermediate portion, and the upper plate is slightly lifted with respect to the lower plate. It is a split side plate that is foldably connected to the outside, and the other opposing pair is a flat plate that can be lifted slightly upward, and one of the adjacent side plates is opposed to the other. On the other side, a locking pin is projected horizontally, and on the other side, a plate having a locking pin introduction part at a position slightly higher than the locking pin position is formed on a plate orthogonal to the locking pin, Both of them are locked by the hook and the locking pin. Among the connecting tools for connecting the plates, the locking pins are provided on the upper side edges of the lower plate in the divided side plates, and the hooks are provided on the upper side edges of the upper plate, respectively. The hook and the locking pin corresponding to the locking pin and the hook are provided respectively.

(E) Action When the split side plate is first erected while folded, and then the side plate consisting of a single flat plate that is not split is erected, the locking pin protruding from the split side plate is inserted in the hook of the undivided side plate. The abutment, undivided side plate is lifted and the locking pin is locked to the hook. Next, when the upper plate of the split side plate is raised, the locking pin protruding from the non-divided side plate comes into contact with the hook introduction part of the split side plate, and this time only the upper plate of the split side plate is lifted, and the locking pin Is locked to the hook.

F. Embodiment A foldable container according to the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a bottom plate made of a steel plate surrounded by a base frame 1a and having a rectangular shape. The four corners of the base frame 1a have corner metal fittings having an L-shaped cross section along adjacent sides of the corners. 2 is vertically installed, and side plates 3, 3, 4 and 4 made of steel plates are provided on each side so as to be able to be tilted inward. One of the side plates 3 and 3 facing each other has a lower end edge hinged to the base frame 1a, and is divided into an upper plate 3a and a lower plate 3b with a horizontal line as a boundary at an intermediate portion, and the upper plate 3a and the lower plate 3b. Means that the connecting shaft 6 provided on the upper plate 3a is vertically and rotatably inserted into the connecting ring 5 fixed to the outer surface of the upper edge of the lower plate 3b. On the other hand, the divided side plates are connected so that they can be slightly lifted and folded outward. The other side plate 4, which faces the other side,
Reference numeral 4 denotes a lower edge and base frames 1a, 1a corresponding to the lower edge, which are provided with connecting plates 7, 7, ..., 8, 8 ..., respectively, and through holes are provided in the connecting plates 7, 7 ,. 7a, 7a, ..., and long holes 8a that are long in the vertical direction are formed in the connecting plates 8, 8 ,.
Is pivotally attached (in the embodiment, rotatably connected by a bolt 9 and a nut 10), so that the side plate 4 has its lower edge a base frame.
It is hinged so that it can be slightly lifted upward with respect to 1a (Figs. 2a and 2b). The side plates 3, 3, 4 and 4 are reinforced by the side frame 11 and come into contact with the corner fittings 2 when standing up to prevent tilting outward, and side edges are in close contact with each other due to deformation prevention. It is like this.

On the upper side edge of the lower plate 3b of the divided side plate 3, a locking pin 12 is horizontally projected on the facing surface side, while the side plate 4 has a locking pin at a portion corresponding to the locking pin 12. A hook 13 is provided in which a locking pin introduction portion 13a of the plate orthogonal to 12 is set at a position slightly higher than the position of the locking pin 12. The upper edge of the introduction portion 13a is inclined. In the embodiment, the plate body is substituted by a side frame 11, a backing plate 11a is attached to the side frame 11, and a hook 13 is formed in the backing plate 11a by cutting from the side. According to the connector including the hook 13 and the locking pin 12, the lower plate 3b of the side plate 3 is first erected (the upper plate 3a is folded outward), and the side plate 4 is erected. Then, immediately before standing up, there is a feeling that the introduction portion 13a of the hook 13 of the side plate 4 comes into contact with the locking pin 12. Then, if the side plate 4 is forcefully raised, the side plate 4 is lifted so that the locking pin 12 can pass over the introduction portion 13a, and the side plate 4 is locked by the hook 13. On the upper side edge of the side plate 4, a locking pin 12 'is horizontally projected on the facing surface side, whereas the upper side edge of the upper plate 3a of the divided side plate corresponds to the locking pin 12'. A locking plate 14 orthogonal to the locking pin 12 ′ is attached to the part, and the locking plate 14
Further, a hook 13 'is provided in which the pin introduction portion 13a is set at a position slightly higher than the position of the locking pin 12'.

According to the connector including the hook 13 'and the locking pin 12', the lower plate 3b of the split side plate and the side plate 4 are connected in an upright state as described above, and the split side plate is folded. When the lower plate 3a is erected, contrary to the above, the upper plate of the divided side plate
Only 3a is lifted and the locking pin 12 'is locked by the hook 13'.

With the arrangement of such a connecting tool, even one person can easily assemble it by only raising the side plate. For example, if the upper plate is connected first, the lower plate cannot be removed unless the upper plate is disconnected. As described above, the side plates can be connected only in the above order, and once assembled, even if it is attempted to release the connection of the lower plate only, the connection of the upper plate with the opposite locking direction prevents it. There are no assembly failures.

The folding container of this embodiment can be stacked vertically by using the locking plates 14 provided at the upper ends of the four corners, and the through holes 15 provided in the side frame 11 as shown in FIG.
It is also possible to connect left and right with bolts by using the and nuts 16.

In the above embodiment, the hook for connecting the upper plate is formed on the lower edge of the locking plate, and the hook for connecting the lower plate is cut into a groove shape from the side of the locking plate using the side frame. Although what is formed is described, the hook may be formed on the lower end edge of the locking plate or may be formed in a groove shape.

Further, the materials of the side plates and the bottom plate, the presence / absence of side frames, the hinge structure, etc. are not limited to those in the embodiment.

According to the present invention, as long as the correct procedure is followed, anyone can easily assemble it, and if the procedure is incorrect, it becomes impossible to assemble,
The assembled box is sturdy and absolutely reliable. On the other hand, if the correct procedure is not followed, the connection cannot be removed and folding is not possible, so there is no variation in the assembly and folding depending on the operator, and there are no failure examples of forgetting to connect.

[Brief description of drawings]

The drawings show an embodiment of a folding container according to the present invention. FIG. 1 is a perspective view of the assembled container, FIG. 2 is an explanatory view showing a hinged portion of a side plate which is not divided, and FIG.
FIG. 4 is an explanatory view showing a hinged portion of the divided side plate, FIG. 4 is an explanatory view showing a connecting structure of a lower plate, FIG. 5 is an explanatory view showing a connecting structure of an upper plate, and FIG. 6 is folded. It is a perspective view of a container. 1 ... Bottom plate, 1a ... Base frame, 2 ... Corner fittings, 3, 4 ...
… Side plate, 3a …… Upper plate, 3b …… Lower plate, 5 …… Connecting ring, 6…
... Connection shaft, 7, 8 ... Connection plate, 7a ... Through hole, 8a ... Long hole, 9 ... Bolt, 10 ... Nut, 11 ... Side frame, 11a ...
… Patching plate, 12, 12 ′ …… Locking pin, 13a …… Introduction part, 1
3, 13 'Hook, 14 …… Locking plate, 15 …… Through hole, 16
……nut,

Claims (1)

[Scope of utility model registration request] 1. A foldable container in which side plates are hinged to each side of a rectangular bottom plate so as to be tiltable inward, and the side plates are erected and connected to each other to be assembled into a box body having an open top. A pair of side plates facing each other is divided into an upper plate and a lower plate with a horizontal line as a boundary in the middle part,
The upper plate is a split side plate that is slightly lifted with respect to the lower plate and is foldably connected to the outside, and the other opposing pair is a flat plate that can be slightly lifted upward. Between adjacent side plates, one side is provided with a locking pin horizontally on the opposite side, and the other side is provided with a locking pin introducing portion on a plate body orthogonal to the locking pin, which is slightly higher than the locking pin position. Forming hooks with the introduction portion set at the position, and providing a locking pin on the upper side edge of the lower plate of the split side plate among the connecting tools that connect both plates by the locking action of these hooks and the locking pin, Each hook is provided on the upper side edge of the upper plate,
A foldable container in which hooks and locking pins corresponding to these locking pins, hooks are provided on a side plate made of a flat single plate, respectively.