JPH0340928U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, and FIG. 2A is an explanatory view similar to FIG. 2 of an outer post portion. Fig. 3 is an assembly process diagram of the same as above, Fig. 4 is an exploded view thereof, Figs. 5 to 6A are exploded views and assembly views showing the second embodiment of the present invention, and Figs. This shows the third embodiment of the invention, in which Figures 7 and 8 are developed views, Figure 9 is an assembled view, Figure 10 is a cross-sectional view, and Figure 1 is a cross-sectional view.
1 and 11A are longitudinal sectional views. 12 and 12A are assembly diagrams of the third embodiment, FIG. 13 is a perspective view showing the stacked state of the boxes in FIG. 9, and FIG.
Figures 17 to 17 are assembly drawings and cross-sectional views showing the fourth and fifth embodiments in which a partition plate is provided inside the box, and Figures 18 to 21 show modified examples of the outer post shape. The assembly drawing, cross-sectional view, and FIGS. 22 and 23 are explanatory views of the conventional type. 1... Bottom plate, 2, 3... Left and right side plates, 4... Top plate, 5... Joining flap, 6, 7, 8, 9... End plate, 10, 11, 12, 13... Extension flap,
14, 15, 16, 17... ruled line, 18... corner post, 19... lid material, 20... fitting protrusion.

Claims (1)

[Claims for Utility Model Registration] 1. Extension flaps extending laterally are connected to both ends of a pair of side plates facing the rectangular cylindrical box body, and the extension flaps are folded to the outside of the box body through the bending ruled line. A reinforced corrugated cardboard box characterized in that a reinforcing outer post is formed along the outer surface of the box body and the four corners by bending and pasting, and no sheet steps are provided on the inner surface of the side panels or end plates of the box body. . 2. In a wrap round packaging box or an open top type rectangular cylindrical box, extension flaps that extend laterally are connected to both ends of a pair of opposing side plates of the box body, and the extension flaps are folded to the box body through the ruled lines. Bend it outward and attach it to the outer surface of both end plates or both side plates to form reinforcing outer posts on the outer surface of the four corners of the box body, so that there are no sheet steps on the inner surface of the side plates or end plates of the box body. The reinforced cardboard box described in paragraph 1. 3. The reinforced cardboard box according to item 1 or 2, wherein a fitting protrusion that projects upward from the top surface of the box body is formed at the upper end of the outer post. 4. The reinforced cardboard box according to any one of items 1 to 3, wherein a partition plate having a Z-shaped, I-shaped, or H-shaped cross section is disposed inside the box body.