KR970004717Y1 - Foldable box - Google Patents

Abstract

None.

Description

Folding box

1 is a perspective view of this design box

2 is a perspective view of the folded state of the box

3 is A-A hospitality cross section

4 is an enlarged cross-sectional view of line B-B and line B'-B '.

5 is a cross-sectional view of the B-B and B'-B 'line operating state

6 degrees C-C line enlarged cross-sectional view

7 is an enlarged cross-sectional view of the D-D line

8 is an enlarged cross-sectional view of the E-E line

This design is an improvement of the plastic folding box, which is characterized by the fact that the product can be fully sized and the empty box can be folded in a small volume.

An important drawback of wooden fruit crates is the inability to reduce the volume of empty crates. If you make wooden apple crates or collect empty crates, you need to have a wide box dump. These crates do not reduce the same volume during transportation, resulting in higher transportation costs. These increased costs will be borne by the final consumer of the packaged goods.

A plastic folding box is proposed in Japanese Laid-Open Utility Model Publication No. 60-43517 to remedy this problem. Such a conventional folding box is used as a complete box for packaging the goods, and the empty box is folded in a small volume, thereby greatly reducing the storage or transportation cost of the empty box. It is also very easy and quick to fold and unfold the box and does not use other tools. The conventional folding boss configuration is connected to the lower plate and the state by the flexing side plate to support the flexing side plate by the opening and closing side plate. When folding the box, the bottom of the opening and closing side plate is lifted up and the flexing side plate is folded and the state overlaps with the bottom plate and is folded in a small volume. When the box is unfolded, the state is lifted up, the expansion shaft plate is opened, and the opening and closing side plate is sandwiched between the two expansion side plates.

The drawback of such a folding box is the difficulty of assembling the flexures by folding and unfolding; The brace of the flexing side plate is weak and it is raised outward when the internal pressure is large, and the edge of the connection between the opening and closing side plate and the flexing side plate or the edge of the connection between the side plate and the lower plate occurs.

The present invention is to provide a folding box that improves the above problems, the flexion box is not pushed by the internal pressure and to prevent the connection edge bursting.

This invention is described in detail according to the accompanying drawings as follows.

The folding box is configured to connect the lower plate 1 and the upper frame 2 to both ends of the flexing side plate 3 and to support the flexing side plate 3 with the opening and closing side plate 4 as shown in the first diagram.

The features of this design are as follows. As shown in FIG. 3 (A-A cross sectional view), the connecting shaft 31 provided on the bottom of the flexing side plate 3 is coupled to the insert bearing 12 provided on the lower plate 1 circumferential cover 11; A coupling shaft 32 installed on the upper portion is coupled to the insert bearing 22 provided on the upper cover 2; The upper and lower plates 2 and 1 are connected to the upper and lower sides of the flexing side plate 3 so as to be extensible;

The coupling shaft 36 'installed on the lower plate 35 is coupled to the insert bearing 33' installed on the upper plate 33; The support plate 38 of the flexing upper plate 33 is brought into contact with the catching jaw 38 'of the flexing lower plate 35 when deployed; As shown in FIGS. 4 and 5 (cross-sectional views of lines BB and B'-B '), the connecting shaft 34 installed on the upper flexure plate 33 is inserted into the insert bearing 36 provided on the flexure lower plate 35. Engaging and bringing the support plate 37 of the lower plate 35 into contact with the jaw 37 'of the upper plate 33 when deployed; The flexing side plate 3 was able to fold and unfold the connecting shafts 35 'and 34 to the movement shaft, and at the same time, the connecting portions of the connecting shafts 35' and 34 were not pushed by the internal pressure in the deployed state.

As shown in FIG. 8 (E-E cross-sectional view), the protrusion shaft 41 provided on both sides of the opening and closing side plate 4 is configured to be coupled to the hinge plate 23 of the upper frame 2; Opening and closing side plate 4 can be opened and closed;

As shown in FIG. 7 (D-D cross-sectional view), the protrusion pieces 40 installed on the corner members 39 of the expansion and contraction plate 3 are fitted into the side support holes 42 of the opening and closing side plate 4; The edge connection between the flexing side plate 3 and the opening and closing side plate 4 was prevented,

The protrusion piece 14 of the lower plate 1 is fitted into the support groove 43 provided at the bottom of the opening and closing side plate 4; Prevents the edge connection between the side plate 4 and the bottom plate 1 from bursting,

A projection 44 provided at the bottom of the opening and closing side plate 4 as shown in FIG. 6 (C-C front sectional view) is coupled to the bottom spring projection 15 at the bottom plate 1; It is to be able to prevent unnecessary vibration of the opening and closing side plate (4).

In this manner, when the folding box (2nd degree) is opened, the folding box is lifted and the opening and closing side plate (33) and the lower plate (35) of the flexing side plate (3) of the flexing side plate (3) are opened. 4) is sandwiched between two flexing side plates (3) to support the flexing side plates (3),

As described above, the improved folding box of the present invention has the support plate 37 of the flexion side plate 3 touching the upper locking jaw 37 '(FIG. 4 and 5) and the upper support plate 38 having the lower locking jaw. (38 ') is pushed outward by the internal pressure of the flexing side plate 3, and when the bottom of the opening and closing side plate 4 is pushed outward, it is stretched to both side support holes 42 of the opening and closing side plate. Since the stone pieces of the side plate 3 of the corner member 39 are inserted (FIG. 7), the side plate edge connecting portion of the box is prevented from being broken, and the stone pieces 14 of the lower plate 1 are fitted into the bottom support groove 43 ( 8 is to prevent the edge of the connection between the side plate 4 and the bottom plate 1, the bottom projection 44 is coupled to the spring projection 15 while clicking (figure 6) as the deployment operation is completed The shaking of the opening and closing side plate 4 is suppressed to prevent the box from being folded.

Claims (1)

(Correction) connect the lower plate 1 and the upper frame 2 to both ends of the flexing side plate 3; The flexing side plate 3 is supported by the opening and closing side plate 4; The flexing side plate 3 is composed of a flexing upper plate 33 and a flexing lower plate 35; In having provided the opening and closing shaft in the upper part of the opening and closing side plate 4, Coupling the connecting shaft 31 of the bottom of the flexing side plate 3 to the insert bearing 12 of the lower plate 1 circumferential cover 11; Coupling the upper connecting shaft 32 to the insert bearing 22 of the upper cover 2; Coupling the connecting shaft 35 'of the lower plate 35 to the insert bearing 33' of the upper plate 33; The support plate 38 of the flexing upper plate 33 is brought into contact with the catching jaw 38 'of the flexing lower plate 35 when deployed; Coupling the connecting shaft 34 of the flexing upper plate 33 to the insert bearing 36 of the flexing lower plate 35; The support plate 37 of the lower flexion plate 35 is brought into contact with the jaw 37 'of the flexion upper plate 33 when deployed; The protrusion piece 40 of the edge member 39 of the expansion side plate 3 is fitted into the support hole 42 on the side of the opening and closing side plate 4; The protrusion 14 of the lower plate 1 is fitted into the support groove 43 of the bottom of the opening and closing side plate 4; Folding box characterized in that the protrusion 44 of the bottom of the opening and closing side plate (4) is configured to be coupled to the spring protrusion (15) of the bottom of the lower plate (1).