JP2003112721A - Simplified bottom assembling box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simplified bottom assembling type cardboard box capable of being rigidly assembled at its bottom without having any clearance and capable of being efficiently manufactured at a low cost. SOLUTION: There is provided a simplified bottom assembling box of cardboard in which a bottom side plate 4 is extended from a lower edge of a side wall 1 and a bottom end plate 5 is extended from a lower edge of an end wall 2, respectively. Insertion pieces 8 arranged at both side edges of the extremity end of the bottom side plate 4 are inserted into V-shaped insertion boles 9 arranged at the bottom end plate 5 to close the bottom surface. A score (a) perpendicular to a step is set by a scoring unit, a crease (b) in parallel with a step is set by a creaser, respectively. A groove (c) is cut by a slot-making machine, it is punched out by a partial die to form the insertion pieces 8 and insertion holes 9. When this punching-out operation is carried out, a pair of hole covering pieces 10 connected to the end edges of the insertion holes 9 are arranged at the insertion holes without dropping the inside portions of the insertion holes 9.

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a simple corrugated cardboard box for storing relatively light products such as kamaboko, snacks and other foods. 2. Description of the Related Art As a cardboard box of this type, as shown in FIG. 4, a pair of side walls 1 and an end wall 2 are connected to each other via a passage 3, and are provided below the side walls 1 and the end wall 2. The bottom side plate 4 and the bottom end plate 5 extend from the edge, the lid side plate 6 and the lid end plate 7 extend from the upper edge, respectively, and the insertion pieces 8 provided on both side edges of the tip of the bottom side plate 4 are attached to the bottom end plate 5. Insert into the V-shaped insertion hole 9 provided,
The one that closes the bottom is used. [0003] By the way, when manufacturing a blank of this simple bottom assembly box, if a score line is formed by a scorer of a corrugator, an error in the positional relationship between the insertion piece 8 and the insertion hole 9 will occur. It becomes large, and a gap is generated at the time of bottom assembly, and there is a risk that pests may enter through the gap. For this reason, as shown in FIG. 5, a large corrugated cardboard sheet S is used as a material, and the entire contour and ruled lines are simultaneously formed by cutting to ensure accuracy. However, in order to manufacture in this way,
There is a problem that a large amount of cost is required for manufacturing the mold, and the waste of paper at the time of punching increases. In addition, since the insertion hole 9 is largely opened, there is a fear that the bottom will be lost. Accordingly, an object of the present invention is to provide a simple bottomed cardboard box that can be firmly bottomed without gaps and that can be efficiently manufactured at low cost. [0007] In order to solve the above-mentioned problems, in the simple bottom assembled box according to the present invention, a ruler that is perpendicular to the step by a scorer and a ruled line that is parallel to the step by a cleaner are respectively provided. Insert, cut a groove with a slotter, punch out with a partial mold to form an insertion piece and an insertion hole, and at the time of this punching, connect the edge of the insertion hole to that part without dropping the inside of the insertion hole A pair of hole covering pieces was provided. In this simple bottom-assembled box, the blank can be manufactured only by adding a partial mold to a conventional grooved-type corrugated cardboard box manufacturing apparatus, and there is a slight error in the positional relationship between the insertion piece and the insertion hole at the time of bottom assembly. However, since the insertion hole is closed with the hole cover piece, the pests are prevented from entering, and the insertion piece is sandwiched between the hole cover piece and the bottom end plate, so that the bottom can be prevented from falling out. An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, in this simple bottom assembly box, a pair of side walls 1 and an end wall 2 are connected to each other via a passage 3, as in the conventional case, and the side wall 1 and the end wall 2 are connected to each other. A bottom plate 4 and a bottom end plate 5 extend from the lower edge, and a lid side plate 6 and a lid end plate 7 extend from the upper edge, respectively.
Into the V-shaped insertion hole 9 provided in the bottom end plate 5,
Closes the bottom. As a characteristic feature, a pair of hole covering pieces 10 connected to the edge of the insertion hole 9 are provided in the insertion hole 9 portion. When manufacturing the blank of the simple bottom-assembled box, first, as shown in FIG. 2, similarly to a normal grooved-type corrugated cardboard box, a ruler a perpendicular to the step by a scorer is formed by a creasing machine. A parallel ruled line b is inserted in each step, and a groove c is cut with a slotter. Next, the bottom side plate 4 and the bottom end plate 5 are processed by a partial mold attached to a flexo-gluer roll to form the insertion piece 8 and the insertion hole 9 at the same time. At this time, without dropping the inside of the insertion hole 9, a ruled line d is formed at the edge of the insertion hole 9 located near the tip of the bottom end plate 5, and a vertical line is formed at the center of the insertion hole 9. A cut e is made to form a pair of hole cover pieces 10. As described above, in the above-mentioned simple bottom assembled box, the blank can be manufactured only by adding a partial mold to the manufacturing apparatus of the usual grooved cardboard box. , Paper can be used without waste. In addition, when the product is packed, no scrap from the insertion hole 9 is mixed into the box. Further, even if a slight error occurs in the positional relationship between the insertion piece 8 and the insertion hole 9 at the time of bottom assembly, the insertion hole 9 is closed by the hole cover piece 10, so that pests are prevented from entering. The insertion piece 8 is sandwiched between the hole cover piece 10 and the bottom end plate 5 to prevent the bottom from slipping out. As described above, in the simple bottom assembled box according to the present invention, the blank can be manufactured only by adding a partial mold to the usual apparatus for manufacturing a grooved corrugated cardboard box. Even if there is some error in the positional relationship between the insertion piece and the insertion hole, the insertion hole is closed by the hole cover, so that pests are prevented from entering, and the insertion piece is attached to the hole cover and the bottom end plate. It is sandwiched and the bottom is prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a bottom assembled state of a simple bottom assembled box according to the present invention. FIG. 2 is a view showing a manufacturing process of the above-mentioned blank. FIG. FIG. 4 is a perspective view showing a bottom-assembled state of a conventional simple bottom-assembled box. FIG. 5 is a view showing a blank of the same. [Description of References] 1 Side wall 2 End wall 4 Bottom side plate 5 Bottom end plate 8 Difference Insert 9 Insert hole 10 Hole cover a, b, d Ruled line c Groove e Notch

Claims (1)

Claims 1. A bottom plate 4 extending from a lower edge of a side wall 1 and a bottom end plate 5 extending from a lower edge of an end wall 2 are provided on both side edges of a front end portion of the bottom plate 4. In a simple corrugated cardboard box in which the insertion piece 8 is inserted into a V-shaped insertion hole 9 provided in the bottom end plate 5 and the bottom is closed, a ruler a, which is perpendicular to a step by a scorer, is stepped by a creaser. Insert a ruled line b parallel to the eye, cut a groove c with a slotter, and punch out with a partial die to form an insertion piece 8 and an insertion hole 9, without dropping the inside of the insertion hole 9 during this punching. A simple bottom-assembled box provided with a pair of hole covering pieces 10 connected to the edge of the insertion hole 9 at that portion.