JPH037336B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fish container used by anglers to put decoy fish or game fish, and which has a rounded bottom and both sides.

BACKGROUND TECHNOLOGY Conventionally, as shown in Fig. 13, a fish container used by anglers to put decoy fish or fishing fish has U-shaped notches c, c on both sides of the bottom part b of a sheet a. Raise the parts d, d and d, d that sandwich c, c upward as shown in Figure 14, then raise the parts e and f sandwiched between d, d and d, d as shown in Figure 15. Let it go up. Then parts d, d and d, d are the 15th
As shown in the figure, overlap the inner edges and add the lower edge to part b.
In this state, the overlapping parts of d and d are welded together to form a bag body using a welder. It's at the bottom.

Problems to be Solved by the Invention Fish containers produced by the above method often have sharp corners at the four corners of the bottom, and these parts often rub against each other, resulting in holes. For this reason, a corner guard must be made separately and attached to each corner, which increases the production cost.Furthermore, the corner bottom has creases on all four sides, and dirt tends to accumulate on the inside, and the creases start from here. There was a problem that it did not last long due to muscle tearing.

The present invention has been made to solve the above-mentioned problems, and aims to provide a method for manufacturing a clean and long-lasting fish container at a low cost by forming the bottom and both sides rounded on three sides.

Means for Solving the Problems As shown in the embodiments shown in Figures 1 to 12 of the drawings, the present invention involves folding a sheet in half with reinforcing pieces attached to both corners of the folded portion, and welding the edges on both sides. A bag is formed, and both corners of the bag to which the reinforcing pieces are attached are heated and pressed using a mold that curves in an arc shape in both plane and side directions, so that the bottom and both sides of the bag are sealed. This relates to a method of molding into a rounded shape.

Function When using the above method, the bag body is formed by simply folding the material sheet in half and welding the side edges.
When both corners of this bag are hot-pressed using a mold that curves in both the plane and side directions, the bag is formed into a shape with radiuses on three sides, the bottom and both sides. , we have completed a fish container that does not have creases that can easily collect dirt or cause streaks, and moreover,
This fish container has reinforcing pieces attached to both corners of the bag to strengthen easily damaged parts, increasing durability, and providing sufficient wall thickness to improve moldability with a mold. This serves to prevent the film from losing its shape later.

Examples Next, the method of the present invention will be explained in detail based on examples.

First of all, place the sheet No. 1 in the drawing on both ends of the middle folded part A of the thick (0.5 mm) polyethylene sheet 1 that will be the material.
Reinforcing pieces 2, 2 made of the same material as shown in the figure are attached by welding, and then the polyethylene sheet 1 is folded in half from the middle bending part A as shown in Fig. 2.
Heat pressure is applied to both sides of the bag using hot pressing plates 3 and 4 with blades as shown in Figure 3, and both sides are welded together and margins A and B are cut off on both sides to form a bag as shown in Figure 4. Form A.

Next, raise the bag A, hold down both corners of the bag as shown in Figure 5, and bend this part in two directions, plane and side, as shown in Figure 6. When hot pressure is applied using hot press plates 5 and 6 with blades, welded edges are formed at both ends so that both corners have a rounded planar shape as shown in FIG. 7 and a side shape as shown in FIG. C, C are formed, the bottom D part and the side part E are formed into a rounded shape, and the outer margins are cut out. Next, inside and outside of both side edges of the bag body A, Round-shaped hot press plates 7, 8, one of which is shown in Figure 9
When applying heat and pressure, the heat and pressure will compress the joint edges of the bag A as shown in Figure 10, and both sides of the bag A will be formed into a rounded shape. The 11th is rounded on three sides: bottom D, both sides E, E.
Complete bag A as shown in the figure.

Therefore, a fish loading/unloading section 10 having an opening/closing lid 9 as shown in FIG. 12 is attached to the opening of the bag body A to form a fish container.

Effects of the Invention The method of the present invention is inexpensive because the bag is formed by simply folding a sheet with reinforcing pieces in two and welding both sides and corners.

Since both corners of the bag are heat-pressed by a mold that curves in two directions, the plane and the sides, welded edges that curve in two directions, the bottom and both sides, are formed, and the three sides of the bottom and both sides are bent. The goal is to create a bag with a smart shape that is rounded and has no corners where holes can easily form due to rubbing, or creases where dirt can accumulate and cause streaks.

Since the bag is made by attaching reinforcing pieces in advance to the sheet parts that will form both corners of the bag, it is possible to improve workability and processability, and to form a durable bag that does not lose its shape.

It has the following unique effects.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a material sheet used in the method of the present invention. FIG. 2 is a perspective view of the same sheet folded in two. FIG. 3 is a partial view showing the state of welding of both side edges of the bifold sheet same as above. FIG. 4 is a front view of a bag formed by welding both side edges. FIG. 5 is a perspective view of the bag with its corners pressed down. FIG. 6 is a perspective view of a welding mold that is curved in two directions: the plane and the side. FIG. 7 is a plan view of a welded edge formed by a welding die. FIG. 8 is a side view of the same as above. FIG. 9 is a sectional view showing the molded state of the side surface of the bag. FIG. 10 is a sectional view showing the side shape after molding. FIG. 11 is a perspective view of the completed bag. 12th
The figure is a front view of a fish container manufactured by attaching a fish loading/unloading section to the bag body. FIG. 13 is a plan view of a sheet used in the conventional manufacturing method. FIG. 14 is a perspective view of both sides of the cutout of the same sheet. FIG. 15 is a perspective view of the same sheet as above, with the portion sandwiched between both sides raised to form a bag shape. FIG. 16 is a plan view of the formed bag. In the figure, 1 is a sheet, 2 and 2 are reinforcing pieces, A is a bag,
5 and 6 are welding types.

Claims (1)

[Claims] 1 Fold the sheet in half with reinforcing pieces attached to both corners of the folded part, weld the both sides of the sheet to form a bag, and attach the reinforcing pieces to both corners of this bag,
A method for producing a three-sided rounded fish container, characterized in that the bottom and both sides of the bag are formed into a rounded shape by heat-pressing with a mold that curves in an arc shape in both plane and side directions.