JPH0138030Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved coupling device between side plates in a collapsible container.

Regarding containers used for loading and transporting cargo, foldable containers have become quite popular in order to increase the efficiency of transporting containers without cargo. For example, as shown in FIGS. 6 to 8, the time coupling device is generally provided on each periphery of the floor plate 1 so as to be freely raised and folded, and in the folded and stored state, a pair of folded coupling devices are provided on the bottom plate 1 in a folded storage state. When assembling the pair of left and right side plates 4 and 5 that are folded and stored on the upper surfaces of the front and rear side plates 2 and 3, first raise the left and right side plates 4 and 5 to a substantially vertical state and lock them as appropriate. After this state is maintained by a means (not shown), the front and rear side plates 2 and 3 are then disposed approximately horizontally at the upper and both ends of the inner surfaces of the left and right side plates 4 and 5, respectively. A guide rail 16 that is formed to have the same predetermined length and has an engagement groove 16a having a substantially T-shaped cross section along its longitudinal direction;
16..., engagement protrusions 8, 8... are provided protrudingly on both side ends of the front and rear side plates 2, 3 in a positional relationship that engages with the engagement grooves 16a, 16a... of the respective guide rails 16, 16... Raise it to the position just before it engages with the engaging grooves 16a, 16a... (the imaginary line position in Fig. 7), and then
Both engaging protrusions 8, 8 on the front and rear side plates 2, 3, respectively
are simultaneously engaged with the engagement grooves, and the front and rear side plates 2 are held until the engagement protrusions 8, 8 are regulated by stoppers (not shown) protruding from the outer ends of the respective engagement grooves 16a, 16a. , 3, the front and rear side plates 2, 3 and the left and right side plates 4, 5 are configured to be held vertically and connected together.

Therefore, if both the engaging protrusions 8, 8 of the front and rear side plates 2, 3 are not simultaneously engaged with the guide rails 16, 16 of the left and right side plates 4, 5, the front and rear side plates 2, 3 and the left and right side plates 4 must be engaged simultaneously. . 16, it is necessary to place workers on both sides of the front and rear side plates 2 and 3, so at least two workers are required.

The present invention was developed in view of the above-mentioned circumstances, and each side panel is provided so that it can be folded and stored so that it can be folded over the floorboard, and when assembled upright, a pair of front and rear side panels or a pair of A guide formed approximately horizontally on both ends of the inner surface of either one of the left and right side plates and having an engaging groove along the longitudinal direction. Each side plate is connected by engaging the engaging protrusion, which is provided on the rail at both ends of the other pair of side plates in a positional relationship corresponding to the guide rail, by engaging with the engaging groove. In a coupling device between side plates in a foldable container, the length of the guide rails arranged in the opposing positional relationship of either the pair of front and rear side plates or the pair of left and right side plates is determined by By forming the engagement protrusions a predetermined length longer than the other side, one of the engaging protrusions protruding from both ends of a pair of side plates, either the front and rear side plates or the left and right side plates, is connected to the other pair of side plates. By making it possible to engage the longer guide rail provided on the face plate and then engage the other engagement protrusion with the shorter guide rail, it is especially possible for one person to handle large containers. The combination can be assembled by the same number of workers.
The object of the present invention is to propose a coupling device between side plates in a foldable container that can significantly reduce the number of man-hours required for assembly work.

Hereinafter, the present invention will be explained based on an embodiment shown in the drawings.

In FIGS. 1 to 5, A is a foldable container, and this foldable container A is constructed as follows. That is, 1 is the bottom plate of the foldable container A, 2 and 3 are front and rear side plates whose lower ends are pivotally connected to the front and rear edges of the bottom plate 1 so that they can be folded up and down, and which are provided on the bottom plate 2 so that they can be folded and stored. It is.
Reference numerals 4 and 5 refer to front and rear side plates 2 and 3, whose lower ends are pivotably mounted on side frames 1a and 1b fixedly provided on both the left and right sides of the bottom plate 1, and which are folded and stored on the bottom plate 1. These are left and right side panels that can be folded up and stored. Reference numerals 6, 6, 7, and 7 refer to two pairs of guides each having engagement grooves 6a, 7a formed in the width direction along the longitudinal direction in the center portion, each having a wide portion inside and an approximately T-shaped cross section that opens on the inner side. These guide rails 6, 6, 7, 7 are formed so that the guide rails 7, 7 are longer than the guide rails 6, 6 by a predetermined length, and a pair of left and right side plates 4, 5 are formed.
The guide rails 7, 7 are arranged substantially horizontally at upper end positions on both sides of the inner surface of one side plate (in the embodiment, the side plate 5) so that the side edges of the side plate 5 and the side edges of the guide rails 7, 7 coincide with each other. , Also, the guide rails 6, 6
are arranged in a positional relationship corresponding to the guide rails 7, 7 on the other side plate 4. 8, 8... are engagement projections each having an engagement portion 8a that engages with the engagement grooves 6a, 7a at the tip thereof, and these engagement projections 8, 8... are provided on the front and rear side plates 2, 3. Guide rails 6, 6, 7, 7 on each side end surface
The engaging portions 8a of the engaging protrusions 8 are connected to the respective guide rails 6, 6, 7,
The side plates 2, 3, 4, and 5 are connected to each other by engaging with the engagement grooves 6a and 7a of 7.

Reference numeral 9 denotes a stopper protruding from the outer end of the engagement grooves 6a, 7a of each guide rail 6, 6, 7, 7, and these stoppers 9, 9, . . . Each side plate 2, 3, 4, so that they touch each other
By joining 5, each side plate 2, 3,
4 and 5 are designed to maintain a vertical state.
In addition, the foldable container A has side plates 2, 3,
After 4 and 5 are connected to each other, the connected state is maintained by appropriate locking means (not shown), and then the ceiling plate (not shown) is appropriately locked to each side plate 2, 3, 4, and 5. It is configured to be assembled by locking with means.

Since the coupling device between the side plates in the foldable container according to the present invention has the above-described configuration,
When assembling the side plates 2, 3, 4, and 5 (see Figure 6) that are folded and stored on the bottom plate 1, first, the left and right side plates 4 and 5 that are folded upward are first assembled. After raising it to a substantially vertical state and maintaining this state by appropriate locking means (not shown),
Next, while raising the front and rear side plates 2 and 3 between the left and right side plates 4 and 5, engaging protrusions 8, 8, which protrude from both end surfaces of the front and rear side plates 2 and 3, are arranged on the left and right side plates. Each engagement groove 6a7 of the guide rail 6, 6, 7, 7
a, and by raising the engaging portions 8a of each engaging protrusion 8 until they are regulated by the stoppers, the front and rear side plates 2, 3 are joined to maintain a vertical state. When engaging the respective engagement protrusions 8, 8 of the front and rear side plates 2, 3 with the engagement grooves 6a7a, since the lengths of the guide rails 6, 7 disposed on the left and right side plates 4, 5 are different, In the state where the engagement protrusion 8 is engaged with the engagement side tip of the guide rail 7, the engagement protrusion 8 is not engaged with the guide rail 6;
Next, by raising the front and rear side plates 2 and 3 so that the engagement protrusion 8 engages with the guide rail 6, the engagement protrusion 8 on the guide rail 6 side is engaged with the guide rail 6, and the engagement protrusion 8 is engaged with the guide rail 6 first. The engaging protrusion 8 on the guide rail 7 side that has been moved remains engaged with the guide rail 7 and moves while being guided by the guide rail 7.
Further, by raising the front and rear side plates 2, 3 until the engaging protrusions 8, 8 are restrained by the stoppers 9, 9, the front and rear side plates 2, 3 are vertically connected to the left and right side plates 4, 5.

The structure and operation of the coupling device between the side plates of the foldable container of the present invention have been explained above, but the present invention is not limited to this, and the design may be changed as desired without changing the gist of the invention. It is possible.

As is clear from the above description, the present invention has the configuration as described in the claims, so that each of the pair of side plates, either the front and rear side plates or the left and right side plates, Since it is now possible to sequentially engage the engaging protrusions protruding from both ends with the guide rails provided on the other pair of side plates, it is especially possible to use one person's work even when the container is large. Assembly is now possible by workers,
The effects it has are significant, such as the ability to significantly improve work efficiency during assembling.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention, and FIG. 1 is a perspective explanatory view showing the assembly process;
Fig. 2 is a plan view of the main part of Fig. 1, Fig. 3 is a sectional view taken along line A-A in Fig. 2, Fig. 4 is a perspective view of the guide rail, and Fig. 5 is a diagram of the engaging protrusion. perspective illustration,
6 to 8 show a conventional example, and FIG. 6 is a perspective explanatory view showing the folded and stored state of each side plate;
FIG. 7 is a plan view showing the main parts in an assembled state, and FIG. 8 is a sectional view taken along line BB in FIG. 7. In the figure, A is a folding container, 1 is a bottom plate, 2 is a front side plate, 3 is a rear side plate, 4 is a left side plate, 5
is the right side plate, 6 and 7 are guide rails, 6a and 7
a is an engagement groove, 8 is an engagement protrusion, 8a is an engagement portion, and 9 is a stopper.

Claims (1)

[Scope of utility model registration request] Each side panel is provided so that it can be folded and stored so that it can be folded over the floorboard, and when assembled upright, each of the pair of front and rear side panels or the pair of left and right side panels is folded and stored on the top side. The guide rails, which are arranged approximately horizontally at both ends of the inner surface of the guide rails, are formed to have the same predetermined length and have engagement grooves along the longitudinal direction; In the coupling device between side plates in a foldable container configured to couple the side plates by engaging an engagement protrusion protrudingly provided in a positional relationship corresponding to the guide rail with the engagement groove, The length of the guide rails arranged in the opposing position of one of the pair of front and rear side plates or the pair of left and right side plates is formed so that one is longer than the other by a predetermined length. A connecting device between side plates in a foldable container.