JPH1072031A - Folding container for transport - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drastically improve the strength of a side plate by a method wherein a protruding stripe which is formed on an upper side plate and a groove which is formed on a lower side plate, are fitted, and also, a protruding stripe which is formed on the lower side plate and a groove which is formed on the upper side plate, are fitted. SOLUTION: For this folding container for transport, a groove 14 which is formed on a vertical rib 13 of an upper side plate 6, and a protruding stripe 12 which is formed on the internal side surface of an external side wall 10 of an upper frame body 1, are fitted when this folding container is built up by engaging an engaging part which is provided on the bottom end of a gate plate 9, with an engaging part which is provided at an end part of a bottom plate 2. Then, at every specified part of the side plate, a protruding stripe which is formed on the external side surface of a downward protruding piece of the upper side plate 6, and a groove which is formed on the internal surface of a recessed part of a lower side plate 5, are fitted, and also, a protruding stripe 21 which is formed on the external surface of an upward protruding piece 19, and a groove 22 which is formed on the internal surface of a recessed part 20 of the upper side plate 6, are fitted. By this method, the side plates can be prevented from deforming when a pressure from an article housed inside or from the outside is put on it, and a large strength can be imparted to the side plates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding transport container used for transporting various articles.

[0002]

2. Description of the Related Art An upper frame, a bottom plate, and an upper side plate and a lower side plate which are attached to be rotatable with respect to the upper frame and the bottom plate, and are connected so as to be bent inward by a connecting shaft. Although a folding transport container having a side plate consisting of and a tilt plate attached so as to be rotatable with respect to the upper frame body is used, by folding it,
There is a disadvantage that the strength of the side plate is reduced, the side plate swells outward due to the pressure from the articles stored inside, or the side plate is deformed inward when pressure is applied from the outside, and the articles stored inside are damaged. Was.

Therefore, in Japanese Utility Model Publication No. 55-36350, the lower end of the upper side plate and the upper end of the lower side plate are provided with a concave portion and a key-like projecting portion which can be fitted with the concave portion to improve the strength of the side plate. However, it was not possible to sufficiently improve the strength of the side plate only by providing a concave portion and a key-like protruding portion capable of fitting with the concave portion at the lower end of the upper side plate and the upper end of the lower side plate.

[0004]

DISCLOSURE OF THE INVENTION The present inventors have conducted research for the purpose of greatly improving the strength of a side plate in a folding transport container, and have reached the present invention.

[0005]

SUMMARY OF THE INVENTION The present invention provides an upper frame having a double wall structure of an outer wall and an inner wall, a bottom plate, and a rotatably mounted relative to the upper frame and the bottom plate. A folding transport container having a side plate composed of an upper side plate and a lower side plate connected so as to be bent inward with a connection shaft, and a tilt plate attached so as to be rotatable with respect to the upper frame body. The upper side plate is formed with a downwardly projecting piece extending below the axis of the connection shaft, and the lower side plate is formed with a concave portion with which the downwardly protruding piece engages. A ridge and a groove are formed on the inner side surface so as to fit each other, and an upwardly projecting piece extending upward from the axis of the connection shaft is formed on the lower side plate, and the upwardly projecting piece is engaged with the upper side plate. A recess is formed, and the outer surface of the upwardly projecting piece is It relates to the transfer vessel folding, characterized in that ridges and grooves to be fitted with each other on the inner surface of the concave portion is formed.

Further, according to the present invention, a vertical rib is formed on the outer surface of the upper side plate, a groove is formed in the vertical rib, and a ridge fitting into the groove is formed on the inner surface of the outer wall of the upper frame. The present invention relates to the folding transport container that is formed.

Further, the present invention provides (1) a vertical rib formed on the outer surface of the upper side plate, a groove formed in the vertical rib, and fitted into the groove on the inner surface of the outer wall of the upper frame. A ridge is formed. (2) A downward projecting piece is formed on the upper side plate and extends downward from the axis of the connecting shaft between the upper side plate and the lower side plate, and the downward projecting piece is engaged with the lower side plate from the inner upper end downward. A concave portion is formed on the outer surface of the downwardly projecting piece, and a groove is formed on the inner surface of the concave portion to be fitted with the ridge. (3) The upper side plate and the lower side plate are formed on the lower side plate. An upwardly projecting piece extending upward from the axis of the connecting shaft is formed, and a concave portion is formed on the upper side plate so as to engage the upwardly projecting piece upward from an inner lower end, and a projecting part is formed on an outer surface of the upwardly projecting piece. A ridge is formed and a groove is formed on the inner side surface of the concave portion to be fitted with the ridge. Fold it relates to transport container.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 is a perspective view showing an example of the folding transport container according to the present invention, FIG. 2 is a front view of the right half of the folding transport container shown in FIG. 1, and FIG. 2 is a left half of the line A- in FIG.
A is a cross-sectional view along A, FIG. 3 is a partial cross-sectional view showing the upwardly projecting piece of the lower side plate and the concave portion of the upper side plate in the folding transport container shown in FIG. 1, and FIG. 4 is the folding transport container shown in FIG. FIG. 6 is a partial cross-sectional view showing a state of a downwardly protruding piece of the upper side plate and a recess of the lower side plate in FIG.

The folding transport container according to the present invention has an upper frame 1 having a double wall structure of an outer wall 10 and an inner wall 11.
A bottom plate 2 and an upper side plate 6 and a lower side plate 5 attached to the upper frame 1 and the bottom plate 2 so as to be rotatable, respectively, and connected to bend inward by the connection shaft 3. It has a side plate and a tilt plate 9 attached to be rotatable with respect to the upper frame 1. The lower side plate 5 and the upper side plate 6 are connected by the connecting shaft 4 and the lower side plate 5
Is mounted so as to be rotatable with respect to the bottom plate 2 by a mounting shaft 7, and furthermore, the tilt plate 9 is mounted so as to be rotatable with respect to the upper frame body 1 by a mounting shaft 8.

The upper frame 1 has a double wall structure of an outer wall 10 and an inner wall 11 along the upper side plate 6. A ridge 12 is formed on the inner surface of the outer wall 10 of the upper frame 1. It is preferable that a ridge is formed on the inner side surface of the outer wall 10, but the effect of the present invention is recognized by a ridge and a groove formed near the connecting shaft 4 between the upper side plate 6 and the lower side plate 5, which will be described later. In such a case, the ridge can not be formed.

Vertical ribs 13 are formed on the outer surfaces of the upper side plate 6 and the lower side plate 5. The vertical rib 13 formed on the upper side plate 6 is formed with a groove 14 into which the ridge 12 formed on the inner surface of the outer wall 10 of the upper frame 1 is fitted.
It is preferable that a groove 14 is formed on the inner side surface of the outer wall 10 of the upper frame body 1. When the effect of the invention is recognized, the groove can not be formed.

The upper side plate 6 is formed with a downwardly projecting piece 15 extending downward from the inner lower end below the axis of the connecting shaft 4, and the lower side plate 5 is engaged with the downwardly projecting piece 15 downward from the inner upper end. Recess 16 is formed, and the downward projecting piece 15 is formed.
A ridge 17 is formed on the outer side surface of the groove, and a groove 18 into which the ridge 17 is fitted is formed on the inner side surface of the concave portion 16.
A groove may be formed on the outer surface of the downward projecting piece 15 instead of the protrusion 17, and in this case, a protrusion that fits into the groove is formed in the recess of the lower side plate 5.

The lower side plate 5 has an upwardly projecting piece 19 extending upward from the inner upper end thereof above the axis of the connecting shaft 4, and the upper side plate 6 is engaged with the upwardly projecting piece 19 upwardly from the inner lower end. Recesses 20 are formed, and upwardly projecting pieces 19 are formed.
A ridge 21 is formed on the outer surface of the groove 20 and a groove 22 into which the ridge 21 is fitted is formed on the inner surface of the concave portion 20.
A groove may be formed on the outer surface of the upward projecting piece 19 instead of the protrusion 19, and in this case, a protrusion that fits into the groove is formed in the recess of the upper side plate 6.

One or at least one of the downwardly projecting pieces 15 of the upper side plate 6 and the upwardly projecting pieces 19 of the lower side plate 5 are formed along the connecting shaft 4.
Groove 1 formed on downward projecting piece 15 and upward projecting piece 19
8, groove 22, recess 16 and recess 20 engaging with each projecting piece
The ridges 17 and 19 formed on the upper side plate 6 and the lower side plate 5 are rotated by the connecting shaft 4 to smoothly fit when assembling the container, and are easily disassembled when folded. be able to. In such fitting with the ridges and grooves, the side plate is not loosened despite the easy attachment and detachment compared to the hook type, etc., which is loosely connected to facilitate attachment and detachment. Shows high strength. Furthermore,
It is preferable to form the groove 14 of the vertical rib 13 of the upper side plate 6 and the ridge 12 on the inner surface of the outer wall 10 of the upper frame 1 because the strength is further increased.

In the folding transport container shown in FIGS. 1 to 4, a groove 14 is formed in a vertical rib 13 provided on the outer surface of the upper side plate 6, and a groove 14 is formed on the inner surface of the outer wall 10 of the upper frame 1. A ridge 12 that fits into the groove 14 is formed.
A protrusion 17 is formed on the outer surface of the downwardly projecting piece 15, and a groove 18 is formed on the inner side of the recess 16 of the lower side plate 5, and the upwardly projecting piece 1 of the lower side plate 5 is formed.
9, a groove 22 is formed on the inner side surface of the concave portion 20 of the upper side plate 6, and a groove 22 is formed on the inner side surface of the concave portion 20. A protrusion is formed on the vertical rib 13 provided on the outer surface of the upper frame 1 and a groove is formed on the inner surface of the outer wall 10 of the upper frame 1 so as to fit into the protrusion. A groove is formed on the side surface, a ridge is formed on the inner surface of the concave portion 16 of the lower side plate 5, and a groove is formed on an outer surface of the upwardly projecting piece 19 of the lower side plate 5. A protrusion may be formed on the inner surface of the concave portion 20 to fit into the groove.

In the folding transport container according to the present invention, the upper frame 1, the bottom plate 2, the upper side plate 6, the lower side plate 5, and the tilt plate 9 can be formed of a synthetic resin such as polyethylene or polypropylene.

When the folding transport container according to the present invention is assembled as shown in FIG. 1 by locking the locking portion provided at the lower end of the tilting plate 9 to the locking portion provided at the end of the bottom plate 2, Grooves 14 formed in the vertical ribs 13 of the side plate 6 and protrusions 12 formed on the inner surface of the outer wall 10 of the upper frame 1 are fitted to each other, and protrusions formed on the outer surface of the downward projecting piece 15 of the upper side plate 6. Article 17
The groove 18 formed on the inner surface of the concave portion 16 of the lower side plate 5 fits with the ridge 21 formed on the outer surface of the upwardly projecting piece 19 of the lower side plate 5 and the inner surface of the concave portion 20 of the upper side plate 6. By fitting with the formed groove 22, it is possible to prevent the side plate from being deformed when receiving pressure from an article housed inside or receiving pressure from the outside, and the side plate has a large strength. ing.

The folding transport container according to the present invention is shown in FIG.
From the assembled state shown in (1), the pivoting plate 9 can be turned inward and the upper side plate 6 and the lower side plate 5 can be folded inward by the connecting shaft 4 to be folded.

[0019]

The folded transport container according to the present invention, when assembled, has a downwardly projecting piece 15 on the upper side plate 6.
The protrusions 17 formed on the outer surface of the lower side plate 5 and the grooves 18 formed on the inner surface of the concave portion 16 of the lower side plate 5 are fitted, and the protrusions 21 formed on the outer surface of the upwardly projecting piece 19 of the lower side plate 5 and the upper part The fitting of the groove 22 formed on the inner side surface of the concave portion 20 of the side plate 6 prevents the side plate from being deformed when receiving pressure from the stored articles or receiving pressure from the outside. And the side plates have great strength. In particular, in such a container, the vertical ribs 1 of the upper side plate 6
3 and a ridge 1 on the inner surface of the outer wall 10 of the upper frame 1
By forming 2, the groove and the ridge are fitted, and the strength of the side plate is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a folding transport container according to the present invention.

2 is a front view of the right half of the folding transport container shown in FIG. 1, and a left half is a cross-sectional view taken along line AA in FIG.

FIG. 3 is a partial cross-sectional view showing a state of an upwardly projecting piece of a lower side plate and a concave portion of an upper side plate in the folding transport container shown in FIG. 1;

FIG. 4 is a partial cross-sectional view showing a state of a downwardly protruding piece of an upper side plate and a concave portion of the lower side plate in the folding transport container shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 upper frame 2 bottom plate 4 connecting shaft 5 lower side plate 6 upper side plate 9 tilt plate 10 outer side wall 11 inner side wall 12 ridge 13 vertical rib 14 groove 15 downward protruding piece 16 recess 17 ridge 18 groove 19 upward protruding piece 20 recess 21 Ridge 22 groove

Claims (6)

[Claims] 1. An upper frame having a double wall structure of an outer side wall and an inner side wall, a bottom plate, and mounted to be rotatable with respect to the upper frame and the bottom plate, respectively, and folded inward by a connecting shaft. In a folding transport container having a side plate composed of an upper side plate and a lower side plate connected so as to be bent and a tilting plate attached so as to be rotatable with respect to the upper frame body, the upper side plate has the above-mentioned connection. A downwardly projecting piece extending below the axis of the shaft is formed, and a recess is formed in the lower side plate to engage the downwardly projecting piece, and the outer surface of the downwardly projecting piece and the inner surface of the recess are fitted to each other. Ridges and grooves are formed on the lower side plate, and upwardly projecting pieces extending above the axis of the connection shaft are formed on the lower side plate, and concave portions with which the upwardly projecting pieces are engaged are formed on the upper side plate. The outer surface of the protruding piece and the inner surface of the concave portion A foldable transport container, wherein a fitting ridge and a groove are formed. 2. A vertical rib is formed on an outer surface of the upper side plate,
A groove is formed in the vertical rib, and a ridge is formed on an inner surface of an outer wall of the upper frame to fit the groove.
The foldable transport container as described. 3. A vertical rib is formed on an outer surface of the upper side plate,
2. The folding transport container according to claim 1, wherein a protrusion is formed on the vertical rib, and a groove is formed on an inner surface of an outer wall of the upper frame so as to be fitted with the protrusion. 4. A projecting ridge is formed on an outer surface of a downwardly projecting piece of the upper side plate, and a groove is formed on an inner side surface of a concave portion of the lower side plate so as to be fitted with the projecting ridge. The folding transport container according to claim 1, wherein a groove is formed on an outer surface of the piece, and a ridge that fits into the groove is formed on an inner surface of the concave portion of the lower side plate. 5. A projecting ridge is formed on an outer surface of an upwardly projecting piece of the lower side plate, and a groove is formed on an inner side surface of a concave portion of the upper side plate. The folding transport container according to claim 1, wherein a groove is formed on an outer surface of the piece, and a ridge is formed on an inner surface of the concave portion of the upper side plate so as to fit with the groove. 6. A vertical rib is formed on an outer surface of an upper side plate, a groove is formed on the vertical rib, and a ridge is formed on an inner surface of an outer wall of the upper frame to fit into the groove. (2) The upper side plate is formed with a downwardly projecting piece extending downward from the axis of the connection shaft between the upper side plate and the lower side plate, and the lower side plate has a concave portion with which the downwardly projecting piece engages downward from the inner upper end. A groove is formed on the outer surface of the downwardly projecting piece, and a groove is formed on the inner surface of the recess to fit the ridge.
The lower side plate is formed with an upwardly projecting piece extending above the axis of the connection axis between the upper side plate and the lower side plate, and the upper side plate is formed with a concave portion with which the upwardly projecting piece engages upward from the inner lower end. 2. The folding transport container according to claim 1, wherein a ridge is formed on an outer side surface of the upward projecting piece, and a groove is formed on an inner side surface of the concave portion to be fitted with the ridge.