JP5258081B2 - Paper carton - Google Patents

Description

  The present invention belongs to the technical field of carton made of paperboard, and more particularly relates to a top-open type paper carton that is suitably used for storing and selling articles such as confectionery and other daily necessities. is there.

  Conventionally, as this type of paper carton, the top panel and the lid panel are overlapped and bonded, and when the lid panel is picked up and lifted, a part of the top panel is cut off at the breaking line. There is a paper carton that can be moved to the lid panel side to open the top panel with a single touch, and can be resealed by inserting the knob on the top of the lid panel into the cut line of the top panel. Yes.

Japanese Utility Model Publication No. 53-53629

  The above-mentioned paper carton is formed from a single blank, and this blank is provided with a break line that divides the opening portion on the top panel, and a sticking piece is continuously provided on one side on the rear side of the top panel. The whole is folded flat and pasted with sack, stored and transported in the sack pasted state, and opened and assembled when the contents are stored.

  In the sack pasting, the sticking piece is stuck to the upper part of the back panel, and the top panel divided by the broken line is partly attached to the lid panel. For this reason, there is a problem that when the sack-attached one is raised in a rectangular tube shape, there is no escape space between the top panel and the sticking piece that are inside, and wrinkles are formed.

  In order to avoid this, a sticking piece is provided on the rear side of the top panel via a panel located inside the back panel, and the sticking piece is stuck to the bottom panel when the sack is applied. However, this increases the area of the blank, resulting in poor chamfering of the paper and high cost. In addition, a folding line serving as a hinge is provided on the rear side of the lid panel, and a part on the rear side of the folding line is also attached to the top panel, but this reduces the opening area when opened, There is a problem that it becomes difficult to take out the contents.

  The present invention has been made in view of such problems, and the object of the present invention is to sack affix without opening the blank area and reducing the opening area. Another object is to provide a top-open paper carton that is free from wrinkles.

In order to achieve the above object, in the paper carton of the present invention, a break line is formed on the top panel to divide the opening portion, a lid panel is connected to the upper side of the back panel, and the lid panel and the top panel are opened. This is a paper carton in which a part is attached, and a reinforcing piece is continuously provided on one side of the rear side of the top panel, and the reinforcing piece is bent and is attached to the inside of the rear panel without being attached to the rear panel. and is positioned, in the folding flaps continuously provided on both sides of the back panel to form a convex embossing towards the front side, the inner side panel continuously provided on the bottom panel, so as not to overlap the protruding embossing folding flap during assembly It may be provided a notch in order to, by bonding the outer side panel with a glue to the convex embossing folding flaps, and fixed to the outer side panel that continuously provided a folding flap top panel It is characterized by a door.

  The paper carton of the present invention attaches the lid panel and the opening part of the top panel when the sack is pasted, but the reinforcing piece continuously provided on the rear side of the top panel is only bent and opened. By fixing the folding flap connected to the back panel to the side panel, you can maintain the shape as a box, so when attaching the sack, just stick the lid panel and the opening part of the top panel Therefore, wrinkles do not occur when the box is opened from the sack-attached state during assembly. Further, the area of the blank is not remarkably increased as compared with the conventional one, and the opening area is not reduced.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a paper carton according to the present invention, and FIG. 2 is a development view of a blank for assembling the paper carton shown in FIG.

  The blank shown in FIG. 2 is formed by punching a paperboard board. As shown in the drawing, the top panel 11, the front panel 12, and the bottom panel 13 are connected to each other through parallel lines a, b, c, and d. The back panel 14 and the lid panel 15 are successively provided, and the reinforcing piece 16 is provided continuously on the opposite side of the top panel 11 via a broken line e. Outer side panels 17 are connected to the left and right sides of the top panel 11, folding flaps 18 are connected to the left and right sides of the front panel 12, and inner side panels 19 are connected to the left and right sides of the bottom panel 13. Folded flaps 20 are connected to the left and right sides of the back panel 14 respectively.

  In the top panel 11, an unsealed portion 11 a is defined by a breaking line α that goes around. The lid panel 15 has a shape in which the vicinity of the center of the tip is slightly swollen as a knob 15a, and an arc-shaped slit 15b is provided inside the knob 15a. The top panel 11 has an opening portion 11a. A linear slit 11b is provided on the outer side of the front panel 12 and corresponding to the slit 15b of the lid panel 15.

  The folding flap 20 of the back panel 14 is formed with a convex emboss 20a facing the front side, and the adjacent inner side panel 19 is provided with a notch 19a so as not to overlap the convex emboss 20a during assembly. ing.

  In order to assemble the above blank, first, as shown in FIG. Specifically, after folding the front panel 12, the bottom panel 13, the back panel 14 and the lid panel 15 with respect to the top panel 11 at the fold line a, and applying glue to the opening portion 11a of the top panel 11, The back panel and the lid panel are bent at the fold line c so that the lid panel 15 is overlapped with the top panel 11 and bonded together.

In the filling step, the sack-attached blank is raised in a square tube shape with broken lines a, b, c and d. At this time, the reinforcing piece 16 on the rear side of the top panel 11 is bent at the fold line e and positioned inside the back panel. Since the reinforcing piece 16 is bent at the time of opening, it is desirable that the fold line e between the top panel 11 and the reinforcing piece 16 is formed by a lead ruled with a cut in the middle of the stamped rule. Next, the folding flaps 18 and 20 are folded inward at one side, and then the inner side panel 19 and the outer side panel 17 are folded inward in this order and bonded together to be closed. At this time, in advance with the glue on the convex embossing 20a of the folding inclusive flaps 20, bonded to the outer side panel 17.

In this way, after one side is closed, the contents are charged from the other side opening. And after throwing in the contents, the folding flaps 18 and 20 are folded inward at the other side, and then the inner side panel 19 and the outer side panel 17 are folded inward in this order and bonded together. Close. At this time, similar to the one side in advance with the glue on the convex embossing 20a of the folding inclusive flaps 20, bonded to the outer side panel 17. Thus, a horizontally placed paper carton having a rectangular parallelepiped shape shown in FIG. 1 is created. For the sake of clarity, the paper carton of FIG. 1 is shown in a partially transparent state in FIG.

  To open the paper carton shown in FIG. 1 (FIG. 4), the knob 15a at the tip of the lid panel 15 is pulled up. As a result, the unsealed portion 11a of the top panel 11 is broken along the breaking line α, and the lid panel 15 with the unsealed portion 11a is opened with the fold line d as a hinge as shown in FIG. When opened in this way, the reinforcing piece 16 on the rear side of the top panel 11 is not attached to the back panel 14, but the folding flap 20 connected to the back panel 14 is attached to the outer side panel 19. Therefore, the shape as a box can be maintained. Moreover, the top panel 11 does not bend because the reinforcing piece 16 in the bent state is provided on the rear side.

  After opening in this way, the opened lid panel 15 is returned to its original position, the arc-shaped slit 15b inside the knob portion 15a is recessed, and the arc-shaped convex portion formed by the slit 15b is removed from the top panel 11 By inserting and engaging the slit 11a, a lid can be applied as shown in FIG.

  Although the embodiments of the present invention have been described in detail above, the paper carton according to the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. It is natural to be.

For example , the opening portion provided on the top panel may have any shape, and may be determined as appropriate according to the application and design. In the above example, the lid panel has a slightly smaller shape than the top panel. However, the lid panel may have a size that hangs on the front panel. Moreover, what is necessary is just to determine arbitrarily the shape of the knob | pick part, and how to stop it.

It is a perspective view which shows an example of the paper carton concerning this invention. It is an expanded view of the blank which assembles the paper carton shown in FIG. It is a top view which shows the blank of FIG. 2 in a sack pasting state. It is a perspective view which shows the paper carton of FIG. 1 in a partially transparent state. It is a perspective view shown in the state which opened the paper carton of FIG. It is a perspective view shown in the closed state from the state shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Top surface panel 11a Opening part 11b Slit 12 Front panel 13 Bottom panel 14 Back panel 15 Lid panel 15a Knob part 15b Slit 16 Reinforcement piece 17 Outer side panel 18 Folding flap 19 Inner side panel 19a Notch part 20 Folding flap 20a Convex emboss α Break line

Claims (1)

A paper carton in which a break line for dividing an opening portion is formed on the top panel, a lid panel is continuously provided on the upper side of the back panel, and the lid panel and the opening portion of the top panel are adhered. consecutively provided the reinforcing piece on the side of one side after the rear panel, the only back panel bending the reinforcing piece is then located inside the back panel without sticking, and continuously provided on both sides of the rear panel fold The flap is formed with a convex emboss toward the front side, and the inner side panel connected to the bottom panel is provided with a notch so that it does not overlap the convex emboss of the folded flap during assembly. A paper carton characterized in that the folding flap is fixed to the outer side panel connected to the top panel by pasting the emboss and pasting it to the outer side panel.

Images