JP2510967Y2 - Frame for self-supporting packaging bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a frame used for holding a packaging bag, particularly a large packaging bag, with its mouth opened and having self-sustainability. That is, the present invention relates to a self-supporting frame body for a packaging bag.

(Prior art and problems to be solved) A gusset bag in which both sides of the body member are double-folded inward, and a bottom portion and a side edge portion obliquely above the bottom portion are heat-bonded,
Alternatively, the bag in which the bottom member is folded under the body member and both side edges and the body member and the bottom member are heat-bonded each other is self-supporting when the contents are put therein, and is widely used as a so-called self-supporting bag. There is.

Then, the applicant of the present application has previously devised to open the mouth portion of the self-supporting bag so as to make it easy to put the contents, and to load the self-supporting assisting tool into the bag in order to assist the self-supporting property ( See Japanese Utility Model Publication No. 1-116151).

However, since this type of conventional self-supporting aid is made of a three-dimensional frame, the self-supporting frame used for a large packaging bag is considerably large and bulky, which makes it difficult to handle. However, it causes troubles such as troublesome transportation and space saving.

An object of the present invention is to provide a frame body for supporting the self-sustaining of the packaging bag in which such obstacles are eliminated.

(Means for Solving the Problems) The present invention is one in which a self-supporting frame body for a packaging bag (hereinafter also simply referred to as a self-supporting frame body) is assembled and disassembled to eliminate the above-mentioned obstacles. .

That is, according to the present invention, the side plates a,
b, c, and d are connected in series, and semicircular plates project from the lower parts of the side plates a and c that face each other when assembled, and a pair of mating members are fitted to the left and right of each fold line. Connecting projections 7 and 8 are provided at the upper and lower ends, and an engaging member 9 for inserting and fixing the end 10 of the side plate d into the end of the side plate a.
The sheet provided with is bent at a right angle along each fold line, the connecting projections 7 and 8 are fitted, and the end portion 10 of the side plate d is inserted and fixed to the engaging member 9 at the end portion of the side plate a. It is a frame body for supporting the self-sustaining of the packaging bag.

 The present invention will be described with reference to the drawings showing an example thereof.

FIG. 1 is a plan view of the seat before the self-supporting auxiliary frame is assembled, and FIG. 2 is a front view thereof. Third, fourth,
FIG. 5 shows the self-supporting auxiliary frame of the present invention after assembly.

The sheet 1 for assembling the self-supporting frame body has four side plates a, b, c, and d formed on one plate. Semi-circular plates 2 and 3 are formed on the side plates a and c (see FIGS. 3, 4, and 5) that face each other when assembled. The portions of the semicircular plates 2 and 3 serve as leading portions when the frame is loaded into the packaging bag after assembly, and facilitate the loading of the frame into the packaging bag. Crease lines 4, 5, and 6 are provided between the side plates, respectively. In this example, a cut groove is provided on the fold line. Also, on the left and right of each fold line, a pair of coupling projections 7, 7
8 is provided, and the projecting pieces 7 and 8 are provided with a convex potch 7'and a concave potch 8'which are fitted to each other.
Further, an engaging member 9 for inserting and engaging the end 10 of the side plate d is provided at the end of the side plate a. These connecting lugs,
Since the four corners of the frame are firmly joined by the engaging member,
Even if some force is applied to the frame, it will not be distorted and will not interfere with use.

When assembling this sheet, the sheets are bent at right angles at the fold lines 4, 5, and 6, the connecting projecting pieces 7 and 8 are joined by fitting the respective convex potches 7'and concave potches 8 ', and the side plates a are This is done by inserting and fixing the end portion 10 of the side plate d into the engaging member 9 at the end portion.

FIG. 3 is a front view of the self-supporting auxiliary frame body of the present invention made by assembling the above seats, FIG. 4 is a plan view thereof, and FIG. 5 is a side view thereof.

As in the above example, appropriate parts of each side plate may be cut out to make the self-supporting auxiliary frame lightweight. Further, for the same purpose, the above semicircular plate may be cut out, or the fold line portion may be cut out at an appropriate position.

In addition, for example, the wide side plates a and c may be projected outward in an arc shape in order to make the packaging bag round when the self-supporting auxiliary frame is loaded and to make it easy to put the contents.

The self-supporting frame of the present invention is made of rigid synthetic resin or metal. And this frame is suitable as a frame for supporting self-sustaining of a large-sized packaging bag, for example, a packaging bag for accommodating raw wood for mushroom cultivation. That is, when the self-supporting auxiliary frame is put into the bag from the mouth of the packaging bag and loaded, the bag has a mouth open state, and self-supporting property is created, so that it is easy to put the contents.

The self-supporting frame of the present invention can be disassembled after use and reused if necessary.

(Effect of the Invention) Since the self-supporting frame body of the packaging bag of the present invention is a flat one that can be freely assembled, even if it is for a self-supporting large-sized packaging bag, it must be assembled before assembly. Is not bulky and is easy to transport and store. Further, the self-supporting auxiliary frame of the present invention is easy to assemble, and since the assembled frame has the four corners connected and fixed, it has an advantage that it is not easily distorted. In addition, since a semicircular plate is provided under the pair of facing side plates,
When the frame body is loaded into the packaging bag, the semicircular plate guides, and the frame body can be smoothly loaded into the packaging bag.

Therefore, the self-supporting frame of the packaging bag of the present invention is extremely useful as a self-supporting frame of a large-sized packaging bag.

[Brief description of drawings]

FIG. 1 is a plan view of a seat before the self-supporting auxiliary frame of the present invention is assembled, and FIG. 2 is a front view thereof. Third
FIG. 4 is a front view of the self-supporting auxiliary frame of the present invention, FIG. 4 is its plan view, and FIG. 5 is a right side view. 1 ... Sheet for assembling self-supporting frame body 2, 3 ... Semi-circular plate, 4, 5, 6 ... Fold line 7, 8 ... Connecting projection, 9 ... Engaging member a, b, c, d ... Side plate

Claims (1)

(57) [Scope of utility model registration request] 1. Side plates a, b, through fold lines 4, 5, 6.
c and d are provided in series, and a semicircular plate is projected from the lower part of each of the side plate a and the side plate c which face each other when assembled, and a pair of mutually fitting couplings are provided on the left and right of each fold line. A sheet having projecting pieces 7 and 8 provided at the upper and lower ends and an engagement member 9 for inserting and fixing the end portion 10 of the side plate d at the end portion of the side plate a is formed on each fold line. Self-standing packaging bag characterized in that it is bent at a right angle with, the connecting projections 7 and 8 are fitted, and the end 10 of the side plate d is inserted and fixed to the engaging member 9 at the end of the side plate a. Auxiliary frame.