JPS61259961A - Switchgear for box - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a box opening/closing device for opening and closing packaging boxes and the like.

Conventional technology For transporting products and semi-finished products within and between factories, the same box is used multiple times to reduce production costs.

Conventionally, there is a box of this type as shown in FIG. The box shown in FIG. 5A has a reinforcing member 21 made of synthetic resin or the like fitted into the upper end of the side plate of a box 2o made of corrugated paper or the like. Numeral 22 is a locking member provided at the corner of the reinforcing member 21 to prevent boxes from shifting laterally when stacked. What is shown in the opening of FIG. 5 is a box 23 that is integrally formed entirely of synthetic resin. When packing products into these boxes, if the products are sensitive to dust and dust, cover the opening of the box with a lid. For example, box 2° is covered with a board 24 made of corrugated paper as a lid, and box 23 is covered with a lid 25 made of synthetic resin attached to the box.

Problems to be Solved by the Invention However, the above-mentioned lids are separate from the box bodies 2Q and 23, and there is a risk that the lids may come off and be lost during transportation.
Furthermore, when packaging the product, there is a problem in that it is cumbersome to open and close.

The present invention solves the above-mentioned problems, and aims to provide a box opening/closing device that can be easily opened and closed without coming off during transportation.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a frame in which a holding part having a U-shaped cross section for holding the upper end of the side plate of a box and a rib forming a guide groove are integrated. A lid body is constructed by connecting a plurality of rod-shaped members with a soft sheet, and engaging portions that engage with the guide grooves are provided at both ends of the rod-shaped member.

Through the above-mentioned means, the frame has the function of holding the lid and reinforcing the box by pinching the side panels of the box, making it possible to create a highly strong packaging box even when using a relatively weak corrugated paper box. can be configured. Further, the lid can be easily opened and closed by sliding each rod-shaped member along the guide groove.

EXAMPLES Hereinafter, the present invention will be explained in detail based on the drawings. FIG. 1 shows a frame 1 that is fitted into the upper ends of a pair of opposing side plates of a packaging box. The holding portion and the locking rib 6.6 for forming the guide groove 4 are integrally formed of synthetic resin such as vinyl chloride or polypropylene.

FIG. 2A shows a lid 7 whose both ends slide while being guided by the guide groove 4 shown in FIG.
It is constructed by gluing resin or cloth sheets 9 and 10 from both sides of a plurality of sheets arranged at regular intervals. However, both ends of the rod-shaped member 8 protrude from between the seams 9 and 10.

In the opening of FIG. 2, 11 is the substrate, 12 and 13 are the base 11
This is a locking portion having a T-shaped cross section and is integrally formed on both ends of the guide groove 4 and fits into the guide groove 4.

In addition, in FIG. 2A, the interval between each bar member 8 is 1oO to 1
Set to 6ON. Also, in the opening of Figure 2, the dimensions of the rod-shaped member 8 are that the short side width 1 of the cross section is 6 to 10jll+, the long side width y is about 1.6 times the short side width X, and the length l is the size of the box. shall be determined based on the following.

To attach the frame 1 and lid 6 configured as described above to the packaging box shown in FIG. 3, first prepare a set of frames 1 of a predetermined length, and then Cover body 5 in guide groove 4
Insert the locking parts 12 and 13 protruding from both ends.

In this state, each frame 1 is attached by sandwiching the upper ends 14 and 15 of the pair of opposing side plates of the packaging box. Further, another frame 16 is attached to the upper end portions of the other pair of opposing side plates.

FIG. 4 shows the frame and lid attached to the packaging box as described above. Reference numeral 17 denotes locking members provided at four corners of the packaging box to prevent the upper and lower packaging boxes from shifting when the packaging boxes are stacked and transported. , simultaneously frame 1 and frame 16
are joined at four corners.

In this embodiment, the lid 7 can be easily opened and closed by sliding the rod-shaped member 8 along the guide groove 4. Also, even if the packaging box is made of relatively weak corrugated paper,
The packaging box is reinforced by fitting the frame 1 and the frame 16 into each side plate. Furthermore, if the packaging box is damaged, it can be replaced with a new packaging box by removing the frames 1 and 16.

Effects of the Invention The present invention has a guide groove integrated into the frame that is fitted into the upper end of the side plate of the box, and a lid whose end part is slidably fitted into the guide groove, thereby making it possible for the lid to slide. It can be opened and closed easily by simply turning the lid, and it can be prevented from coming off during transportation.

Further, the frame can hold the lid, and can also be fitted into the upper end of the side plate of the packaging box to reinforce the packaging box.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view of a main part of a box opening/closing device according to an embodiment of the present invention, FIG. 2A is a perspective view of a lid of the same cylinder opening/closing device,
The opening in Figure 2 is a perspective view of the rod-like member of the lid, Figure 3 is a perspective view of the packaging box, Figure 4 is a perspective view of the packaging box with the opening/closing device of the cylinder attached, and Figure 6 is the illustration. The second opening is a perspective view of a conventional packaging box. 1...Frame body, 2, 3...Pinch piece, 4.
...Guide groove, 5, 6...Rib, 7...
... Lid body, 8 ... Rod-shaped member, 9, 1o ...
...Sheet. 4-J Gotoi 1mi, Figure 5 (Ladle
(b) 2f? 2

Claims (1)

[Claims] A frame body that is integrally formed with a U-shaped clamping part that clamps the upper ends of a pair of opposing side plates that make up the box and ribs that make up guide grooves, and a plurality of rod-shaped members are connected by a soft sheet. What is claimed is: 1. A box opening/closing device comprising: a foldable lid; and engaging portions formed at both ends of the rod-shaped member are slidably engaged with the guide groove.