JPS644682Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a spout stopper for a liquid-filled paper container, and more specifically, the present invention relates to a spout stopper for a liquid-filled paper container, and more specifically, a spout stopper is fixed to the paper container while maintaining a predetermined arrangement direction. This invention relates to a positioning structure for a pouring tap.

B. Prior Art In recent years, hollow rectangular prismatic paper containers have been widely used as containers for storing liquid contents such as alcoholic beverages and fruit juices. The paper container usually has a spout stopper attached to an appropriate part of the container wall, which functions as a spout for pouring out the liquid contents when the container is opened.

FIGS. 1A and 1B are a side view and a front view of the spout tap.

In FIGS. 1A and B, the spout 1 is inserted from the inside of the paper container P into a mounting hole H drilled in the paper container P, and is connected to the base end of the spout body 2. By welding the provided flange 3 and the resin coating layer provided on the inner surface of the paper container P, it is fixed in a predetermined position.

A spout 4 is formed at the tip of the spout main body 2, and inside the spout 4 is formed an inner wall 7 having a gourd-shaped blind lid 6 that is separated by pulling the pull top 5 when opening the bottle. has been done.

The pouring stopper 1 has the large diameter circular part of the gourd-shaped blind lid 6 located on the lower side, and the side wall on the large diameter circular part side is longer than the side wall on the mounting base end side of the pull top 5. It is attached to the paper container P to form an inclined spout 4, but it is fixed relative to the container wall so that when pouring out the liquid contents, the liquid contents can have a smooth outflow behavior without pulsation. The position must be adjusted.

However, the known spout attachment device (not shown) is not provided with a positioning means for ensuring the preferred relative fixed position of the spout 1, and therefore the spout 1 is In order to maintain the above-mentioned preferred relative fixed position prior to supplying the tap to the spout attachment device, a complicated positioning operation had to be performed in advance.

The above-mentioned positioning operation of the spouting stopper 1 is performed when the spouting stopper 1 moves on the parts feeder. The dispensing stopper 1, which is provided with a predetermined mounting posture by utilizing the self-centering action of the substantially D-shaped flange 3 surrounded by the parts feeder 3c, is attached to a parts shooter connected to the parts feeder. (not shown) and is continuously supplied to the tap attachment device.

By the way, the parts shooter is a means for transferring the spout 1 to the spout mounting device by using its own weight, and is adapted to transfer the spout 1 in the alignment direction given by the parts feeder. The flange is arranged substantially in parallel with a distance substantially equal to the distance between the tip of the arcuate edge of the flange and the straight edge opposite to the arcuate edge so as not to change during the process. It has two guiding side walls.

The pouring tap 1 moves toward the pouring tap mounting device while bringing the arcuate edge 3a of the flange 3 and the opposite straight edge 3b into contact with the respective guiding side walls of the parts shooter. At this time, the spout 1 swings irregularly due to the difference in contact length between the arcuate edge 3a and the straight edge 3b with the guide side wall of the parts feeder, that is, the difference in frictional resistance. There were cases where the spout 1 got caught on the guide side wall surface and prevented the smooth supply of the spout 1 to the spout attachment device.

B. Purpose of the invention The purpose of the invention is to propose a structure of a spout tap that can reliably control the alignment of the spout tap welded to a liquid-filled paper container.

C. Structure of the invention The present invention provides a thin-walled flange 17 that is integrated with the proximal end of the main body 11 of the liquid-filling paper container P in the spouting stopper 10 for liquid contents that is fixed to the wall of the liquid-filled paper container P. a first end edge 18 located at a predetermined eccentric distance l1 from the axis of the spout body 11, and second and third ends connected to the first end edge 18. A fourth edge 18 faces the first edge 18 while maintaining an eccentric distance l2 shorter than the edges 19, 20 and the first edge 18, and has a central portion bulged in an arc shape. contact portions 22 and 23 formed from the edge 21 and engaged in point contact with the guide means of the pouring tap 10 at the corner portions of the first to third edges 18, 19, 20; , 24, 25 are formed thereon.

D. Example FIGS. 2A and 2B are a side view and a front view of a spout stopper of a liquid-filled paper container according to the present invention.

In FIGS. 2A and 2B, the spout 10 is composed of a hollow cylindrical spout main body 11 and a cap 12 fitted into the open end of the spout main body 11. As shown in FIGS.

An inner wall 15 having a thin groove 14 on the back surface is formed inside the spout 13 formed at the tip of the spout main body 11, and a separable gourd-shaped inner wall 15 is formed inside the groove 14. A blind lid 15a is provided. When opening the spout stopper 10, the blind lid 15a is torn along the groove 14 by pulling the pull-top 16 attached to the top 15b of the blind lid 15a, and functions as a spout for pouring out the liquid contents. become able to do so.

A thin flange 17 that is integrally formed with the spout body 11 is connected to the base end of the spout body 11 . The periphery of the flange 17 includes a first edge 18 located at a predetermined eccentric distance l1 from the center axis of the spout 11, and
second and third edges 19, 20 connected to 8;
and an eccentric distance l shorter than the first edge 18
2 and facing the first edge 18, and
A fourth edge 21 whose central portion bulges in an arc shape
It is formed from. The first to third edges 1
At each corner of 8, 19, 20, an arc-shaped protrusion is formed that functions as a point-contact contact portion 22, 23, 24, 25 that reduces frictional resistance for the guide means described below. The intermediate portions of the first to third edges 18, 19, 20 each have a common tangent to the abutting portion, that is, a common tangent to the abutting portions 22, 23, 24, 25 adjacent to each other. The notch is formed so that the side edge thereof is located inside the virtual straight lines 18a, 19a, and 20a connecting the ends. Further, the virtual straight lines 18a, 19a, 20a connecting the outer ends of the abutting parts are substantially orthogonal between adjacent ones, and between the abutting parts 22, 23 located at both ends of the first edge 18. The drawn virtual straight line 18a is the gourd-shaped blind lid 15a.
is located approximately parallel to the axis of symmetry.

On the other hand, the pouring stopper 10 has the gourd-shaped blind lid 15 in order to give the liquid contents smooth outflow behavior without pulsation when pouring out the liquid contents.
The large-diameter circular portion a is located on the lower side, and the length of the side wall of the spout 13 located on the large-diameter circular portion side is equal to that of the side wall of the spout 13 located on the mounting base end side of the pull top 16. Slanted spout 1 that is longer than the length
It must be attached to the paper container P so as to form 3.

The procedure for positioning the spout 10 will be explained below.

The above-mentioned positioning of the spout 10 is performed when the spout 10 is supplied to the spout attachment device by the vibrating parts feeder. The above-mentioned vibratory parts feeder has a spiral track along the inner wall of a ball hopper (not shown), and by applying periodic vibrations to the ball hopper, spout plugs are randomly fed into the ball hopper. 10 is conveyed upward of the ball hopper along the spiral trajectory. Since the inner wall of the ball hopper functions as a guide means for the spout 10 when the spout 10 moves along the spiral trajectory of the parts feeder, the flange 17 eccentrically connected to the spout body 11 Due to the self-centering action of the spout 10,
As described above, they are positioned in a predetermined alignment direction.

The spout 10 positioned in this way moves in a stable state without changing the above-mentioned preferred aligned posture, and is fed from the parts feeder to the parts shooter.

FIG. 3 is a partially cutaway front view illustrating the structure of the parts shooter. In FIG. 3, parts shooter A is a spouting tap transfer device in which guide plates 27, 27 are fixed to the upper and lower surfaces of two guide rails 26 arranged opposite to each other.
0 is slidably supported by the guide plate, and is configured to be able to be transferred to a subsequent pouring tap attachment device while maintaining an aligned state without falling off.

When the pouring stopper 10 moves from above to below inside the parts shooter A due to its own weight, the spouting stopper 10 contacts the contact portions 22 provided at both ends of the first edge 18 of the flange 17, 23 and the center part of the fourth edge 21 is connected to the inner wall 2 of the guide rail 26.
6a, 26a, move smoothly while making point contact with the parts shooter A, and at the end point of the parts shooter A, the contact portions 22, 25 of the third edge 20 are brought into contact with the stopper 28.
It stands still in a state of point contact and assumes a standby posture for being inserted into the mounting hole H of the paper container P.

As described above, the pouring tap 10 is supplied to a pouring tap mounting device (not shown), and the large-diameter circular portion of the gourd-shaped blind lid 15a is positioned on the lower side, and the long portion located on the large-diameter circular portion side is It is attached to the attachment hole H of the paper container P while maintaining the insertion posture in which the side wall is positioned below the short side wall located on the attachment base end side of the pull top 16.

E. Effect of the invention The pouring stopper of the liquid-filled paper container according to the invention is as follows:
A flange eccentric with respect to the axis of the spout body is integrally molded at the base end of the spout body, and a corner of the periphery of the flange is in point contact with the guide member of the spout supply mechanism. The flange has a point-contact type of sliding that reduces frictional resistance when supplying the spout by forming a protrusion that engages with the flange, and bulging out the center of one side of the periphery in an arc shape. Since the dispenser is configured to be able to do this, there is no disturbance in the alignment direction of the pouring stopper during the feeding process, which was a problem with conventional devices. Therefore, the present invention can significantly contribute to improving the quality of liquid-filled paper containers by providing the spout stopper with a predetermined device position suitable for stabilizing the discharge behavior of the liquid contents.

Furthermore, since the spout according to the present invention has a notch in the center of the first to third edges, it is possible to save the material used to form the spout.

[Brief explanation of drawings]

1A and B are a side view and a front view of a known spouting stopper, FIGS. 2A and 2B are a side view and a front view of a spouting stopper for a liquid-filled paper container according to the present invention, and FIG. FIG. 2 is a partially cutaway front view of a parts shooter that transfers a spout from a parts feeder toward a spout attachment device. P... Liquid-filled paper container, H... Mounting hole for spouting stopper, 10... Spouting stopper, 11... Spouting stopper body, 1
7...flange, 18...first edge, 19...
Second edge, 20...Third edge, 21...Fourth edge
edge, 22, 23, 24, 25... contact area.

Claims (1)

[Scope of utility model registration request] In a dispensing stopper for liquid contents that is fixed to the wall of a liquid-filled paper container, the periphery of a thin flange that is integrally constructed with the proximal end of the dispensing stopper body is aligned from the axis of the dispensing stopper main body. A first edge located at a predetermined eccentric distance, second and third edges connected to the first edge, and maintaining an eccentric distance shorter than the first edge. a fourth edge facing the first edge and having a central portion bulged in an arc shape;
, and abutment portions are formed at the corners of the first to third edges to engage in point contact with the guide means of the spout tap. Pour stopper for liquid-filled paper containers.