JPS6038494Y2 - plastic sheet container - Google Patents

Description

[Detailed explanation of the idea] This proposal concerns containers made of plastic sheets.

BACKGROUND OF THE INVENTION With the diversification of articles stored in containers, containers made of plastic sheets have recently been used for certain types of stored items.

There are various types of containers of this type, but initially the container body was not provided with a mouth, and when the consumer used it, the consumer inserted a spout stopper with a blade-shaped lower end into a part of the top wall. In the case of such a container, the manufacturer had to place the stored items in the main body in advance, and then join the peripheral edge of the top wall to the upper wall of the peripheral wall of the main body by heating or using an adhesive.

However, when the stored items are placed in the main body in advance, it is difficult and time-consuming to join the peripheral edge of the top wall due to reasons such as the liquid from the stored items adhering to the upper end of the peripheral wall. .

In order to eliminate such defects, the top wall is formed with a cylindrical part that serves as the mouth in the same way as a normal container, and the top wall is joined to the upper end of the peripheral wall in advance, so that the contents can be filled from the mouth. However, since the top wall is highly flexible, it has been difficult to join the mouth part.

The present invention eliminates these difficulties and will be described below with reference to the drawings.

1 is a container body made of a plastic sheet, 2 is a peripheral wall of the container body, and 3 is a sheet-like top wall thereof.

The peripheral edge of the top wall is joined 4 to the upper end of the peripheral wall, and prior to this joining, a mouth 5 is formed in the top wall 3.

The mouth portion 5 is formed as follows.

That is, a through hole is provided in a portion of the top wall in advance.

Further, a pouring tube 6 and a tightening tube 14 are provided.

The pouring tube 6 has a cylindrical portion 7 having the same outer diameter S as the through-hole and passing through the through-hole, and a screw 8 is provided on the outer surface of the lower part of the cylindrical portion hanging below the through-hole. An outward flange-shaped wall 9 is projected from the outer surface of the cylindrical portion above the through hole, and a short tube portion 10 is suspended from the outer circumferential portion of the flange-shaped wall to cover the inner wall surface of the short tube portion. A first tapered surface 11 that expands downward and outward,
Furthermore, a lip portion 12 that expands in response to upward force is projected from the upper end of the cylinder, and a cap screw 13 is attached to the outer surface of the cylinder portion between the lip and the outward flange-shaped wall.

For tightening, the tube 14 is screwed into a lower cylindrical portion hanging down below the through hole, and its upper end surface is a second tapered surface 15 having a shape that matches the first tapered surface, By tightening, the peripheral edge portion 3a of the through hole is held between the first and second tapered surfaces in a watertight manner.

A cap 16 may be screwed onto the top of the spout barrel.

As described above, after the opening 5 is formed on the sheet-like top wall 3 in advance, the peripheral edge of the top wall is joined to the upper end of the peripheral wall, and storage and removal into the container body is performed using the opening.

The present invention has the above-mentioned configuration, and from the outer circumference of the outward flange-like wall 9 protruding from the outer surface of the spout cylinder, there is a short section with a first tapered surface 11 that expands the inner wall surface downward and outward. Pipe part 10
Since the upper end surface of the pipe was made into a second tapered surface that matched the first tapered surface, the lower part of the cylindrical portion of the spouting tube was made to have a transparent hole bored in the sheet-like top wall. It is left to hang down from the hole, and by simply screwing the pipe into the hanging part and tightening it, the peripheral edge part 3a of the through-hole is sandwiched between the first and second tapered surfaces, and the clamped through-hole Since the peripheral edge portion of the hole is also deformed into a tapered shape, the above-mentioned clamping becomes extremely reliable, and therefore, it is easy to clamp in a watertight manner without intervening a backing.

Furthermore, since the opening 5 formed as described above can be attached to the sheet-like top wall 3 in advance, when the peripheral edge of the top wall and the upper end of the peripheral wall are joined together, there is no possibility that stored items will adhere to the part and interfere with the joining. In addition, the consumer is freed from the trouble of inserting a spout as in the past, and there is no need to attach a spout as a separate member, so there is no risk of losing it.

[Brief explanation of drawings]

The drawing is a longitudinal sectional view showing the proposed structure. 1... Container body, 6... Pour tube, 14.
...Tighten the pipe.

Claims (1)

[Scope of utility model registration request] It has a container body 1 made of a plastic sheet in which a through hole is formed in a part of a sheet-like top wall 3, and a cylindrical part 7 that penetrates through the through hole, and an outward flange is formed from the outer surface of the cylindrical part above the through hole. shaped wall 9
A spouting cylinder 6 having a short pipe part 10 projecting from the outer periphery of the flange-like wall and having an inner wall surface of the short pipe part as a first tapered surface 11 expanding downward and outward; The clamp screwed onto the tube 14 consists of a tube 14, and the upper end surface of the tube is
A container made of a plastic sheet, characterized in that a peripheral edge portion 3a of the through hole is watertightly sandwiched between the first and second tapered surfaces as a second tapered surface 15 having a shape that matches the tapered surface.