JPH068021Y2 - Paper container with spout - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a paper container with a spout which is filled and sealed with liquid food such as milk or juice.

[Conventional technology]

Conventionally, in a packaging container in which liquid food such as milk or juice is sealed, in order to pour out the content liquid, for example, in a gable top seal paper container, a spout is provided on a roof-shaped inclined surface, and the spout is poured. In some cases, the cap was removed and the blocking part was torn off in order to pour out the inner solution, which was formed from two pieces, the outlet body and the cap. In order to make such a spout easy to open and to manufacture at low cost and with ease, it is formed by one-piece injection molding, and its construction is separated on the upper surface of the tubular part having a flange-shaped peripheral part to be the container mounting part. There is a spout provided with a lid through a possible shallow groove portion and a shallow groove which becomes a slightly thick hinge portion, and a knob is projected on the surface of the lid (for example, Japanese Patent Laid-Open No. 61-104942). , Japanese Utility Model Application Laid-Open No. 61-117123).

[Problems to be solved by the device]

In the case of a paper container equipped with a one-piece type spout that is easy to open and can be manufactured at low cost, the deep groove portion at the upper part of the tubular spout body is broken and the lid is opened to form the spout opening. Since pouring was performed, a slight force was required to break it, and opening was not always easy.

The present invention has been made in view of the above points, and an object of the present invention is to provide a paper container with a spout that can very easily open the spout when pouring the liquid content from the paper container. And

[Means for Solving the Problems]

In order to achieve the above object, in the paper container with a spout of the present invention, an opening (10) provided for mounting the spout (S) is provided on the upper surface of the paper container (P). Is closed by a coating (11) with a plastic layer covering it from the inside. Then, in the closed opening portion (10), the spout main body (1) consisting of a spout opening (8) and a flange-shaped peripheral portion (3), the lower surface of which is in contact with the coating film (11) in a fitted state. ), And the lower surface of the spout body (1) is flush with the lower surface of the spout body (1) while being fitted to the spout opening (8). The lower surface of the lid body (2) which is provided with the knob (5) and is connected to the spout body (1) by the connecting member (4) is welded to the coating film (11).

[Action]

The paper container with a spout constructed as described above is the spout body.
Since the lower surface of (1) and the lower surface of the lid (2) are welded to the coating (11) having the plastic layer covering the inside of the container, the lid mounted on the upper surface of the paper container filled with the content liquid. When the body (2) is opened, the coating (11) is very easily broken and the content liquid can be poured out.

〔Example〕

 Embodiments of the present invention will be described with reference to the accompanying drawings.

FIGS. 1 to 4 show the first embodiment, and FIG. 1 is a sectional view showing a state in which the spout (S) is attached to the container when the spout-equipped paper container is a gable top seal type container (P). It is shown by.

The spout (S) shown in the drawings is made of a synthetic resin such as polyethylene integrally, that is, by injection molding into one piece. The spout (S) has a spout (W) before the container is formed in the spout attachment opening (10) on the upper surface of the web (W) located on the upper inclined surface of the container (P). When it is in the form of a sheet, it is attached by the flange-shaped peripheral portion (3). This spout mounting opening (10)
Is a film whose inner surface has a plastic surface (1
It is closed due to 1).

In forming this coating (11), the surface (one side) of the paper material of the web (W) is plastic-coated (laminated), then the spout attachment opening (10) is bored, and then the web. The back surface of the paper material can be formed by coating with a coating (11) having a plastic layer.

The spout (S) includes a spout body (1) having a home base shape with a low height and having a flange-shaped peripheral portion (3) on the outer periphery, and the spout body (1).
(1) is integrally formed by injection molding from the rear of the brim-shaped peripheral portion (3) to the main body (1) in an open state via a belt-shaped connecting member (4) having a predetermined thickness and a predetermined width. Consists of a lid (2) (4th
(Refer to the drawing), when this is in the closed state and the web for the container is in the form of a perforated sheet of the spout attachment opening (10) before being formed into a tubular shape, it is attached to the opening (10) Is. The blank sheet with the spout (S) attached in a closed state is bonded to both side edges to form a cylindrical container member (container blank), which is folded and transported in a flat state for transport on the filling machine. After being raised in a cylindrical shape to form a container, the content liquid is filled and sealed. Figure 3 shows a perspective view of the spout (S) in the closed state, and Figure 2 shows the spout (S) in the closed state.
Fig. 3 is a sectional view taken along line AA (Fig. 3) of the spout (S) when the spout is attached to the spout mounting opening (10) of the web (W). The spout (S) has a spout opening in the center of its body (1).
(8) is opened and formed to be low in height, and at the lower part of the main body, the outer periphery of the web (W) that fits into the spout attachment opening (10) and the opening (10) of the web (W). There is a web fitting part (1a) with a flat lower surface having a height excluding the coating part (11) on the lower surface, and a predetermined thickness along the upper edge of the fitting part (1a) in the outer peripheral direction of the main body (1). A flange-shaped peripheral portion (3) of the lid (2) is provided on the inner wall of the main body (1) along the height near the upper surface of the flange-shaped peripheral portion (3). A recessed engaging portion (7) for engaging with 6) is provided in the outer peripheral portion of the pouring opening (8). The lid body (2) integrally molded from the rear portion of the brim-shaped peripheral portion (3) through the connecting member (4) is a main body.
An engaging portion (6) for engaging with the engaging portion (7) of the main body (1) when the lid is closed is formed so that it can be fitted in the inside of (1) like a lid, and the lid body ( A knob (5) is formed on the upper surface of 2) in a ring shape so that it can be easily pulled up by a finger, and the knob base is provided on the opposite side of the connecting member (4) with the center of the upper surface of the lid body (2) interposed. (5a) is provided so as to be bendable, and is formed so as to extend to the side of the connecting member (4) for a predetermined length in the vicinity of the upper surface of the lid (2). The connecting member (4) is located laterally away from the center line of the knob (5) (see FIG. 3) so that the knob (5) can be operated without any trouble. Further, on the side opposite to the connecting member (4) of the main body (1), the height is slightly increased and the inner surface is formed in a gently sloping shape so that the liquid can be favorably discharged. There is. Furthermore, the lower surface of the lid (2) is
When the spout is closed, that is, when the engaging portions (6), (7) of the main body (1) and the lid (2) are in a fitted state, the bottom surface of the main body (1) is It is formed so as to be on the same plane.

When the spout is attached to the spout attachment opening (10) of the web (W) in a closed state, the spout in the closed state is provided on the upper surface of the coating film (11) that closes the lower surface of the opening (10). (S) The main body (1) and the lid (2) of the same plane are welded to each other at the same time, and at the same time, the upper surface of the web (W) when the lower surface of the flange-shaped peripheral portion (3) is in a sheet shape. To be welded to. The welding is performed by ultrasonic welding using a predetermined device (not shown). A container is formed from these blanks and filled with the internal solution to complete the paper container with a spout. However, in order to open the spout, the knob (5) is raised as shown by the phantom line in Fig. 1. By pulling up with, the coating portion (11) welded to the lower surface of the lid (2) below the spout (S) on the inner surface of the container (P) is easily torn off and the spout opening (8) is opened. Further, by appropriately selecting the strength of the connecting member (4), when the lid is opened and the container is tilted to pour out the content liquid, the lid is not closed and the opened state is maintained. You can go out.

5 to 8 show the embodiment of FIG.

In the first embodiment, since the lid body (2) is formed so as to drop into the spout body (1) and fit into the body (1) in a lid type, The boundary portion of the upper edge engaging with the lid body (2) is exposed upward as in the case of a commercially available milk bottle. Therefore, there are hygiene concerns depending on the storage conditions. In the second embodiment, the lid body (2) is attached to the spout body to eliminate the concern.
It has a format that covers (1).

Similar to the first embodiment, the spout (S) is integrally molded by injection molding with the lid (2) opened from the spout body (1) (8th embodiment).
(See the figure), and then, in the closed state, insert the web fitting part (1a) at the bottom of the main body (1) into the opening (10) for attaching the spout of the web (W) in the sheet state, and open the opening. (10) The coating (11) closing the lower surface is welded to the lower surface of the spout body (1) and the lower surface of the lid body (2) that are coplanar with the spout (S), and the main body ( 1) The outer periphery of the flange-shaped peripheral portion (3) is welded and attached to the upper surface of the web (W) as in the first embodiment (see FIG. 6). Further, the engaging portion (7) of the spout body (1) and the engaging portion (6) of the lid body (2) have a flange-shaped peripheral portion (3) whose height is the same as in the first embodiment. It is formed so as to be close to the height of the upper surface, and is further formed on the outer peripheral portion of the pouring opening (8) of the main body (1) and of the spout-shaped main body (1) protruding from the upper surface of the flange-shaped peripheral portion (3) The lid (2) is formed so as to cover the wall from the upper surface. Therefore, the groove provided with the engaging portion (6) of the lid (2) is the lid.
The lid (2) is formed in a state of being recessed on the inner surface of the periphery of (2). Further, the connecting member (4) is formed wider and stronger than that of the first embodiment, and the holding of the lid at the time of opening the lid is good without the engaging member. Further, the spout body (1) is formed so that the opposite side across the connection member (4) and the spout opening (8) is slightly higher and the inner surface is gently inclined outward to facilitate pouring of the content liquid. Is the same as in the first embodiment. Further, in this embodiment, the inner surface groove portion of the lid body (2) is formed into a substantially elliptical shape so that there is no refraction portion, and a knob formed in a ring shape is further formed.
In order to protect (5), the outer peripheral part of the lid (2) on the side of the knob (5) is at the same height as the upper surface of the knob (5) and the outer peripheral wall (2a ) Is formed.

With the above construction, the height of the spout (S) of the second embodiment is slightly increased, but a spout that is strong and sanitary can be formed. The usage state and the opening state of the spout are the same as those in the first embodiment.

[Effect of device]

According to the paper container with a spout of the present invention as set forth in claim 1, a spout opening is formed for pouring the liquid content of the paper container like a conventional one-piece spout attached to the paper container. If you do
It took some force to pull up the lid and rupture the thin portion to open it, so opening was not always easy, but
The paper container with a spout according to the present invention can be opened very easily only by pulling up the lid and breaking the coating on the inner surface of the container. Moreover, the spout can be attached from the upper surface of the container without the need to attach it from the inner surface of the container, which is advantageous in manufacturing. Further, it is possible to provide a paper container provided with a spout having a barrier property to the outside air by utilizing the inner surface film of the paper container without requiring a separate film even if the fitting accuracy of the engaging portion is not high. it can.

[Brief description of drawings]

FIGS. 1 to 4 show a first embodiment of the present invention, and FIG. 1 shows a state in which a spout is attached to a container when the paper container with spout is a gable top seal type container. 2 is a sectional view taken along line AA of the spout of FIG. 3, FIG. 3 is a perspective view of the spout, and FIG. FIG. 5 is a sectional view of the spout during injection molding, and FIGS. 5 to 8 show a second embodiment of the present invention. In FIG. 5, the paper container with spout is a gable top seal type container. FIG. 6 is a cross-sectional view showing how the spout is attached to the container in the case of a container, and FIG. 6 is a cross-sectional view taken along line BB of the spout of FIG. FIG. 7 is a perspective view of the spout, and FIG. 8 is a cross-sectional view of the spout during injection molding. (1) ... spout main body, (2) ... lid, (3) ... flange-shaped peripheral part, (4) ...
Connecting member, (5) ... knob, (5a) ... knob base, (6), (7) ... engaging portion, (8) ... spout opening, (10) ... spout outlet mounting opening, (11)
... coating with a plastic surface, (P) ... container, (S) ... spout, (W) ... web.

Claims (1)

[Scope of utility model registration request] 1. A film having a plastic layer which is closed by covering an opening (10) for attaching a spout (S) on the upper surface of a paper container (P) from the inside of the paper container (P). (11)
A bottom surface contacts the coating film (11) in a state of being fitted in the opening portion (10), the pouring opening (8) and the brim-shaped peripheral portion (3)
And a knob (5) whose lower surface is flush with the lower surface of the spout body (1) when fitted into the spout opening (8). A lid (2), a connecting member (4) for connecting the spout body (1) and the lid (2), and further, the lower surface of the spout body (1) and the lid ( A paper container with a spout characterized in that the lower surface of 2) is welded to the coating film (11).