JPH0237697Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a pouring spout in a paper container, etc., and more specifically, to a thin-walled opening provided in the sealed bottom plate of the spout, and a tension knob for separating the spout. It is related to.

(Prior art) Conventionally, in the case of a spout that is attached to this type of paper container using a seat plate, a separate sealing member is attached to the spout tube to seal the spout tube. He placed it on the rim of his mouth, screwed it on with a cap, and pressed it down.

In addition, a paper container with a spout, in which a sealing member having a thin wall part is provided inside the spout of a plastic spout and a pull ring is provided on the sealing member, has been developed since 1973.
It is disclosed in Publication No. 63331.

(Problems to be solved by the invention) In the above-mentioned spout sealing means, a sealing member must be prepared separately for the spout, and in the case of sealing, the sealing member must be placed between the spout and the spout. It takes a lot of effort to screw the cap on at the edge, and it is difficult to open the cap because the sealing member does not have a knob or the like.

In addition, in the case of the container with a spout disclosed in the publication, the opening opened with a pull ring is not designed with special consideration given to the outflow of the liquid content and the inflow of air, and is made of a plastic spout. No special consideration was given to the mounting flange when welding it to the container body.

The present invention was devised in view of the above points, and its purpose is to make it easier to attach the spout body to the container body, and to make it easier to pull the tension knob for opening. Moreover, the purpose is to ensure that the liquid inside flows out smoothly and without pulsation from the opening opened by the tension knob.

(Means for Solving the Problems) In order to achieve the above object, the present invention has the following features: The problem is solved by matching the direction of the mounting seat plate with the straight side of the mounting seat plate.

That is, in the present invention, the thin-walled opening provided in the sealed bottom plate inside the spout barrel of the spout main body is formed by an enlarged outflow part for the liquid content and a narrow inflow part for air following this. However, the tension knob for separating from the thin section, which is set upright on the side of the narrow section with a support, is an elongated ring shape extending from the narrow section of the thin section for opening toward the enlarged section. The ring-shaped tension knob is configured such that its center portion slightly protrudes from the mouth edge of the spout tube, and the direction of the elongated oval coincides with the direction of the straight side of the mounting seat plate.

(Function) The spout described above is used by being welded to the roof-shaped surface of a paper container, etc. so that it protrudes from the inside of the container to the outside. To do so, remove the cap, put it on the ring-shaped part of the tension knob that protrudes slightly from the rim of the spout barrel, pull it with your fingertips, and then separate it from the thin-walled opening part of the sealed bottom plate to open it. Then, the liquid content flows out from the enlarged part of the opening. At this time, air flows in from the narrow part and exchanges with the liquid content.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The spout B attached to the paper container etc. A of the present invention is
It consists of a spout body a and a cap b.

The spout main body a is integrally injection molded from synthetic resin and is composed of a spout tube 1, a sealed bottom plate 2 on the inside thereof, and a mounting seat plate 3 on the lower outside. A thin wall portion 5 for opening is formed in the sealing bottom plate 2 by a notch 4 extending upward from the bottom surface.

The thin portion 5 has a shape in which a wide portion 6 and a narrow portion 7 are connected when viewed from above.

A tension knob 8 is provided on the upper surface of the airtight bottom plate 2 protruding inside the narrow part 7 of the thin wall part 5, and this knob 8 has a ring-shaped knob part 9 provided on the support column 8a.

This ring-shaped knob 9 is connected to the thin wall portion 5.
It is an elongated ellipse in the direction connecting the narrow part 7 and the enlarged part 6, and its central part protrudes slightly outward from the mouth edge 10 of the spout barrel 1.

The mounting seat plate 3 is for attaching to the roof-shaped surface of the paper container A, etc. When installing, the spout tube 1 is projected outward from the inside through the through hole of the container body, and the mounting seat plate 3 to the inner surface of the container body.
This mounting seat plate 3 has a straight side 3a, and the direction of this straight side 3a coincides with the direction connecting the narrow part 7 and the enlarged part 6 of the thin part 5.

The cap b is integrally injection molded from synthetic resin like the spout body a, and has an inner cylinder 12 protruding from the inside of the outer cylinder 11, which covers the cap b on the spout body a. At this time, the spouting cylinder 1 comes to fit tightly between the outer cylinder 11 and the inner cylinder 12.

To attach the spout B as described above inside a paper container A, etc., it is necessary to weld it using the straight side 3a of the seat plate 3 as a reference. The thin wall portion 5 is attached such that the direction connecting the narrow portion 7 and the enlarged portion 6 is, for example, in the case of a roof-shaped container, the direction in which the roof is inclined, and the enlarged portion 7 is on the lower side.

In order to pour out the liquid inside the roof-shaped container to which the spout B is attached as described above, the cap b is removed from the spout body a, and the tension knob 8 protruding outward from the spout tube 1 is pulled out. When you put your fingertips on the long oval ring-shaped knob 9 and pull it, the pulling force is concentrated at the base of the column 8a of the tension knob 8, and the pulling force is concentrated on the narrow part of the thin-walled part 5 for opening. 7, this spreads to both sides of the enlarged portion 6 and is separated.

When the container main body, which has been separated from the thin wall portion 5 and opened, is held and tilted toward the lower side of the roof, the liquid inside flows out from the enlarged portion 6, and air flows in from the narrow portion 7 for exchange.

(Effects of the invention) The present invention allows the spout to be attached to a paper container, etc. to connect the thin part for opening of the sealed bottom plate, the enlarged part for outflow of the liquid content, and the narrow part for air inflow. , since it is in the direction of the straight side of the mounting seat plate,
The spout can always be attached to the container body with the straight side of the mounting seat plate as the reference, and the attached spout should be such that the opening opened by the tension knob is located downwards and the enlarged part of the outflow of the liquid content is downward. In addition, the narrow part of the air inflow is located at the upper side, which can effectively prevent pulsation when the content liquid flows out.
Moreover, the pull knob for opening is in the shape of an elongated ring extending in the direction connecting the narrow part and the wide part of the opening, and its center part protrudes slightly from the spout barrel, so that it touches the opening and is easy to use with your hands and fingers. It is easy to hook and pick it up, and since the thin part due to tension spreads from the narrow part to the enlarged part, it is easy to break and open.

[Brief explanation of the drawing]

The drawings relate to the present invention; Figure 1A is a sectional view of the spout body with the cap removed, Figure 2B is a plan view thereof, and Figure 2A is a sectional view of the spout body with the cap on.
B is a plan view thereof, and FIG. 3 is a partial side view of the paper container with a spout attached. Code A... Paper container etc., B... Pour spout, a...
Spout body, b... Cap, 1... Spout barrel, 2
... Sealing bottom plate, 3 ... Mounting seat plate, 3a ... Straight side, 4 ... Notch, 5 ... Thin wall part for opening, 6 ...
Wide part, 7... Narrow part, 8... Tension knob.

Claims (1)

[Scope of utility model registration request] A thin walled part for the opening provided in the sealed bottom plate inside the spout barrel of the spout body is formed by an enlarged outflow part for the liquid content and a narrow air inflow part following this, and the narrow part side is The tension knob for separating from the thin-walled part erected with a support is in the shape of an elongated oval ring extending in the direction from the narrow part of the thin-walled part for opening to the enlarged part, and this ring-shaped tension knob is A spout for a paper container, etc., whose central part protrudes slightly from the rim of the spout tube, and whose elongated direction coincides with the direction of the straight sides of the mounting seat plate.