JP2005075377A - Blow molded container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blow molded container wherein a recessed channel is provided along a parting on a bottom part to make it as a folding line, and the bottom part of the container can be easily bent to be crashed into a flat and can be discarded. <P>SOLUTION: The blow molded container is provided with a spout part, a barrel part and the bottom part. The recessed channel approximately in parallel along the parting line is provided on the bottom part, or the parting line on the bottom part is positioned so as to deviate from the central line on the bottom wall of the bottom part, and the recessed channel is provided on the central line. The barrel part is equipped with front and back walls and side walls provided with a continuous walls connected to the bottom wall, and the recessed channels are provided on the bottom part and the continuous walls. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a blow molded container that can be flattened.

In order to reduce the volume of waste, waste containers are required to be crushed, and a fold line is provided on the body of the blow-molded container to fold the container after use. Blow molded containers that have been crushed and discarded are conventionally known.
Japanese Utility Model Publication No. 6-6215 JP 2001-315742 A

  In the prior art described in Patent Documents 1 and 2, as the folding line, the former is a folding rib having a mountain-shaped cross section, and the latter is provided with a crease line at a required portion of the body part. There is a problem that the bottom wall cannot be easily folded because it is not disposed on the wall.

  A blow molded container generally has a problem that the part of the parting line at the bottom part is thick because it overlaps the pinch-off part, and the bottom part cannot be bent along the parting line.

  An object of the present invention is to solve the above-mentioned problems by providing a concave groove along the parting along the parting to form a fold line, so that the bottom of the container can be easily folded and crushed flat and discarded. It is an object of the present invention to provide a blow molded container that can be used.

  In order to achieve the above object, the present invention is a blow molded container having a mouth portion, a body portion, and a bottom portion as a blow molded container, and provided with a concave groove substantially parallel to the parting line at the bottom portion. The structure characterized by this is adopted.

As a blow molded container of another embodiment, a blow molded container having a mouth portion, a body portion, and a bottom portion, wherein the parting line of the bottom portion is positioned so as to deviate from the center line of the bottom wall of the bottom portion, and the center A configuration characterized in that a concave groove is provided on the line is adopted.

  As an embodiment of the concave groove, the body portion includes front and rear walls and a side wall provided with a continuous wall connected to the bottom wall, and the concave portion is provided in the bottom portion and the continuous wall. Add configuration.

  By providing the concave groove in the bottom wall of the container bottom, the container bottom can be easily folded when the container is discarded, and the container can be flattened and discarded.

Next, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, A is a blow molded container, and the container A is composed of a mouth part 1 and a shoulder part 2 with a diameter-expanded part at the lower part, and a body part 3 and a bottom part 4 following the shoulder part 2. .

  The shoulder portion 2 has a mountain shape having a ridge line 5 that is inclined so that the center is higher. As shown in FIGS. 1 and 2, the trunk portion 3 has a substantially rectangular cross section, and the front and rear walls 6. It consists of left and right side walls 7.

The front and rear walls 6 are flat wall surfaces that are continuous with an arcuate edge 8 at the hem of the shoulder 2, the side edges of the wall surface are side edges 9 that are connected to the side walls 7, and the lower end is a horizontal lower end. It is edge 10.
As shown in FIG. 3, the side wall 7 has a mountain-shaped upper end edge 11 whose end edge is the side surface of the shoulder portion 2, the side end edge 9 continuous with the front and rear walls 6, and a crossing point 12 below the center portion. A flat wall surface 14 formed of two inclined end edges 13 and a continuous wall 15 extending downward from the two inclined end edges 13 and connected to the bottom portion 4.

A parting line P is provided in the center of the ridge line 5 of the shoulder 2 and the wall surface 14 of the side wall 7, and a folding line is provided on the parting line P in the center of the wall surface of the side wall 7 and on the inclined edge 13. 16 is formed.
As shown in FIG. 5A, the fold line 16 is formed by a convex rib 17 having an arcuate cross section protruding outward.

  As shown in FIGS. 3 and 4, the bottom 4 has front and rear bottom end walls 18 that are continuous with the lower end edge 10 of the front and rear wall 6, and a center that extends from the bottom end wall 18 so as to rise in a mountain shape. It consists of a bottom wall 20.

  The ridge line 19 of the bottom wall 20 is on the parting line P, and a pinch-off portion 21 of the container bottom 4 is formed in a certain range at the center of the ridge line 19 of the bottom wall 20.

  On the continuous wall 15 of the bottom wall 20 and the body portion 3, a concave groove 22 is engraved along the parting line P so as to be positioned adjacent to the parting line P or slightly apart. Yes.

Next, the effect of the container of the present invention will be described.
When the container after use is discarded, when the front and rear walls 6 are pressed from the front and rear of the body portion 3, the side walls 7 are expanded so that the folding line 16 extends outward, and the body portion 3 can be flattened. .

  Since the bottom wall 20 is provided with the concave groove 22 along the parting line P, the concave groove 22 is bent so that the bottom surface moves upward, and the bottom wall 20 and the connecting wall 15 are located above the ridge line 19. To be easily folded.

  Therefore, it is possible to obtain a crushed container in which the body portion 3 is flattened and the bottom portion 4 is folded in two.

Next, another embodiment relating to the parting line will be described.
The parting line and the pinch-off part of the above embodiment are positioned on a straight line passing through the center of the side wall and the bottom wall of the container body. However, in this example, the position of the parting line, particularly the pinch-off part is The position is changed.
Hereinafter, the difference will be mainly described.

  In FIGS. 6 and 7, Aa is a container and, like the above-described embodiment, comprises a mouth part 1a and a shoulder part 2a, a trunk part 3a and a bottom part 4a, and the mouth part 1a, shoulder part 2a and trunk part 3a. These are the same as those in the previous embodiment, so that they are denoted by the same reference numerals and will not be described in detail.

The bottom portion 4a includes a bottom end wall 25 and a bottom wall 26 extending from the bottom end wall 25 so as to rise in a mountain shape.
The parting line Pa is curved near the connecting wall 27 of the side wall 7a from the parting line Pb of the body 3a passing through the center (center line) of the side wall 7a of the body 3a of the container Aa, and deviates forward or backward. The pinch-off part 28 is also located at a predetermined distance from a line passing through the center of the bottom wall 26 of the bottom part 4a.

  The ridge lines of the bottom wall 26 and the connecting wall 27 below the trunk portion 3a are located so as to pass through the center line of the bottom portion 4a and the center line of the side wall 7a of the trunk portion 3a, respectively, and the parting line Pa of the trunk portion 3a. The bottom wall 26 and the connecting wall 27 are provided with a groove 29 on the ridge line.

  In discarding the container after use, the same effects as those of the above embodiment can be obtained, and the concave wall 29 provided in the bottom wall 26 and the connecting wall 27 is arranged on the center line of the bottom 4a and the side wall 7a. Thus, the bottom wall 26 is folded with the center line between the bottom end walls 25 as a base point.

  Therefore, it is possible to obtain a specific effect that the bottom portion 4a is neatly folded together with the body portion 3a.

Next, another embodiment according to the folding line will be described.
In the above embodiment, the convex ribs 17 are provided as the folding lines 16, but instead of the convex ribs 17, as shown in FIG. 5B, the center of the side wall 7 and the inclined edge 13 are recessed from the wall surface. A concave rib 30 having an arcuate cross section may be provided.

  Since the bottom of the container is provided with a groove close to the parting line, the bottom can be folded in two, and the container can be flattened, which is useful for volume reduction of the waste container.

It is a perspective view of this invention container. It is a front view of a container. It is a side view of a container. It is a bottom view of a container. It is sectional drawing which shows the Example of the rib which concerns on a bending line, (a) is a convex rib, (b) is a concave rib. It is a side view of the container of another Example. It is a bottom view of the container of another Example.

Explanation of symbols

A, Aa Container P, Pa, Pb Parting line 1, 1a Mouth part 2, 2a Shoulder part 3, 3a Body part 4, 4a Bottom part 5, 19 Ridge line 6, 6a Front and rear walls 7, 7a Side wall 8 Edge 9 Side edge Edge 10 Lower edge 11 Upper edge 12 Intersection point 13 Inclined edge 14 Wall surface 15, 27 Continuous wall 16 Folding line 17 Convex rib 18, 25 Bottom end wall 20, 26 Bottom wall 21, 28 Pinch-off part 22, 29 Concave groove 30 Concave rib

Claims (3)

A blow molded container having a mouth, a trunk, and a bottom,
A blow-molded container characterized in that a substantially parallel concave groove is provided at the bottom along a parting line. A blow molded container having a mouth, a trunk, and a bottom,
A blow-molded container, wherein a parting line at the bottom is positioned so as to be displaced from a center line on the bottom wall of the bottom, and a concave groove is provided on the center line. The torso has front and rear walls and side walls with continuous walls connected to the bottom wall.
The blow-molded container according to claim 1, wherein a concave groove is provided in the bottom portion and the continuous wall.

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