JPS5962464A - Packing vessel for can and its semimanufacture - 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 The present invention provides a peripheral rim (
The present invention relates to packaging containers for accommodating can-like containers each having a protruding rim) and semi-finished products for forming such packaging containers.

For example, US Pat. No. 2,788,603, US Pat.
No. 9, No. 3031812 and British Patent No. 82597
According to No. 1, a can is packaged in a packaging container so that the packaging container and the can can be held in position relative to each other through cooperation between a tongue (or flap) formed on the packaging container and a rim at the end of the can. It has been known.

The object of the present invention is to strengthen the holding force between the packaging container and the can to form a stronger and more reliable cooperation between them.

It is an object of the present invention to provide a packaging container for accommodating containers, such as cans, each having a peripheral rim extending beyond at least one end, comprising: a retaining opening in which a peripheral portion of the rim is received; a retaining tongue having a free edge that joins the inner surface of the peripheral portion of the rim for retaining the mutual position of the can and the packaging container; It is hinged along an arcuate fold line extending between the ends of the retention opening such that the distance between this arcuate fold line and the peripheral edge of the rim is greatest midway between the ends of the retention opening. This is achieved by providing a packaging container with the following characteristics:

For a clearer understanding of the invention, reference will now be made to the accompanying drawings, which illustrate one embodiment of the invention.

FIG. 1 shows two cooperating base panels 10.12 and side wall panels 14.16, each of an enclosed sheath.

Panel 10 is notched and includes a pair of male locking tabs 18.20 defined by retaining tabs 22.24 for securing the two base panels together. To ensure tight assembly of the sheath to the article to be packaged, a row of clamping holes 26, 28 are respectively formed in the base panel for engagement with appropriate clamping elements of the packaging machine. These features are well known per se.

A row of projecting edge retention openings, including openings 30, 32, 34, are stamped from the blank along the fold line 36 where the base panel 10 and sidewall panel 14 are hinged. Similarly, openings 3B, 40, 42 are formed along fold line 44 where base panel 12 and sidewall panel 6 are hinged. Since each of the protruding edge retaining openings has the same features, only the features of the opening 32 will be described for the sake of brevity. Opening 3
2 is defined by a protruding edge retaining tongue 46 that hinges along an arcuate fold line 48 formed in the base panel 10 . An arcuate fold line 48 extends from one edge of the opening 32 to the other edge to interconnect the rounded corners 50, 52 of the opening;
The center of curvature is located at the portion of the side wall 4 beyond the opposite straight edge 54 of the opening 32.

The tongue 46 is formed by a pair of diagonal fold lines 54,56;
each extending between each hinged corner of the tongue and the free straight edge, thereby forming a rounded corner 50.52 l! J
J-contact folded ears 58,60 are defined.

The retaining tongue 46 engages a peripheral portion of the can's projecting edge 62 (FIG. 2) so that the packaging container and can are held in position relative to each other. Such engagement is accomplished during the packaging process, which will be briefly described below.

An appropriate number of cans (in this example, 6 cans arranged in two rows of 3 each) to be accommodated in the semi-finished packaging product are assembled into a group using the conventional method, and the top panel of the semi-finished product (Fig. (not shown) on the top of the can. Next, fold the side wall panels 14-, 16 downward along the main body of each row of cans. By pre-folding the base panel 10.12 along the fold lines 36, 4.4 outwardly away from the row of cans, the base panel 10.12 is essentially in a position parallel to the top panel. be. This folding step causes the free edge of the protruding edge retaining tongue to disengage from the adjacent edge of the corresponding protruding edge retaining opening, resulting in each tongue protruding inwardly into the 17'l edge portion of the adjacent recessed edge. Become. In this way, the peripheral edge portion of the difficult-to-reach edge is received in the adjacent protruding edge holding opening. To complete the packaging process, the base panel 10.12 is folded upwardly and further inwardly and secured together by the fixing tabs 1.8, 20 and the cooperating retaining tabs 22.24.

Referring again to the projecting edge retention opening 32 and the same tongue 46, during the final folding stage the retention tongue 46 is within the recessed bottom of the can 64 and the arcuate fold line 48 folds the base panel. pivot around. This pivoting of the tongue 46 causes the folded ears 58, 60 to engage the recessed edges 62 at each end of the retaining opening 32 and fold inwardly along diagonal fold lines 54, 56, respectively. The free edge of the result retaining tongue 46 joins the inner surface of the periphery of the hard-to-read portion at the bottom of the can. The retention tongue is dimensioned to substantially conform to the contour of the inner surface of the recessed edge, the raised edge being within the retention opening, such that the raised edge is within the retention opening. Fixed.

It will be appreciated that retention is enhanced in relation to cans that have projecting edges that extend beyond the ends of the can and also extend outwardly from the end body.

In this example, the straight edge 54 of the lip retention opening 32 engages the underside of the outwardly projecting portion of the lip when the lip retention tongue 46 is positioned. A short score line 66 extends upwardly from the straight edge 54 to provide some clearance for the sidewall panel material around the end body adjacent the projecting edge.

The advantage of having an arcuate fold line 48 is that the retaining tongue is strengthened because it encompasses more material than if the fold line ran parallel to the straight edge 54. It is. Additionally, the angle at which the retaining tongue joins the recessed edge is more gradual than if the retaining tongue were hinged along a straight fold line. That is, since the retaining tongue has a gentle slope relative to the bottom of the can, a force greater than that required when the slope is steep is required to disengage the retaining tongue from the protruding edge. It is.

Although this description specifically refers to cans with projecting edges, it will be appreciated that the invention is also applicable to holding other suitable articles having at least one tail or rim (=J-edge). For articles with raised edges or rims on each section, the hinged engagement of the top and side panels of the packaging container may also include raised edge ports so that the article is retained at both ends.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a pair of joint base panels for a semi-packaged product, each panel having a can retaining tongue according to the invention. FIG. 2 is a sketch of a part of a packaging container using the semi-finished packaging product shown in FIG. 1, showing the connection between the retaining flap and the difficult-to-reach edges at the periphery of the can. 10.12...Base panel, 14.16...
...Side wall panel, 18,20...Male locking tab, 22,20 4...Retaining tab, 26.28...Tightening hole, 36°44... ...Fold line, 30, 32.34
...Protruding edge holding opening, 38 , 40 , 42
...Protruding edge retention opening, 46...Protrusion edge retention tongue, 50.52...Rounded corner of protrusion edge retention opening 32, 54...・Protruding edge holding opening 3
Straight edge of 2, 54.56...Diagonal fold line, 5
8.60... folded ears, 66...
Folding line, 62... Protruding edge of can, 64...
...Can. Patent Applicant The Mead Cooperation Agent
Hideo Takino 1 FIG, 7

Claims (7)

[Claims] (1) In a packaging container for accommodating containers each having a peripheral rim extending beyond at least one end, a retaining opening in which the peripheral portion of the rim is received;
a retaining tongue having a free edge that joins the inner surface of the peripheral portion of the rim for retaining the mutual position of the can and the packaging container; II! along an arcuate fold line extending between the ends of the retaining opening such that the distance between this arcuate fold line and the peripheral edge of the rim is greatest midway between the ends of the retaining opening II! ll! The packaging container is characterized in that it is double-jointed. (2) the retention tongue is sized to occupy a surface defined by the peripheral portion of the container rim and the arcuate fold line, and the free edges of the retention tongue are at the ends of the retention opening; A packaging container according to claim 1, characterized in that the container substantially follows the contour of the peripheral portion of the rim of the container between. (3) A retaining tongue has one arcuate fold line at each of its ends.
a tab (ear) hinged to the adjacent central portion of the tongue by a diagonal fold line extending from the end to the free edge of the retention opening; 2. A packaging container according to claim 1, characterized in that it is folded downward so that the free edge of the retaining tongue follows the contour of the peripheral portion of the rim of the container. (4) the retention opening includes a locking lip adjacent the free edge of the retention tongue, the locking lip being located below the peripheral portion of the rim that projects outwardly from the body of the container; A packaging container according to claim 1. (5) In a packaging container for accommodating containers, such as cans, each having a peripheral rim extending beyond at least one end and outwardly from the container body, the peripheral portion of the rim of the container is received therein. a retaining opening having one linear edge positioned below an outwardly extending portion of the rim received in the opening, and engaging an inner inner surface of the peripheral portion of the rim; an arcuate-shaped retaining tongue that curves in a direction away from the one straight edge of the retaining opening; a free edge hinged to the other straight edge along a fold line and extending between opposite ends of the retention opening, the free edge joining and substantially sealing the contour of the interior surface of the rim; A packaging container characterized by: (6) a top panel, a pair of sidewall panels hinged to opposite ends of the top panel, and a pair of base panels hinged to each of the sidewall panels and spaced from the top panel;
a plurality of article retention means spaced apart along the joint of each of the sidewall panels and the adjacent base panel, the retention means including an elongated retention opening and a retention tongue extending therewith; The retaining opening receives a peripheral portion of the rim of the article such that a straight edge of the retaining opening located in the panel engages below the rim, and the tongue-like opening engages the inner inner surface of the rim. a straight edge of the retention opening and an adjacent free edge for
the tongue is hinged to the adjacent base panel along an arcuate fold line, the fold line arcing away from the linear edge of the retention opening and extending between the ends of the retention opening; Packaging semi-finished products featuring: (7) Feature 1: The center of curvature of the arcuate fold line is located inside the adjacent side wall of the packaging container! : The packaging semi-finished product according to claim 6.