JPH11180463A - Capped nozzle used for bag or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a capped nozzle with which a main body can be easily inserted into a bag or the like, deaeration can be performed excellently and the bag is not damaged by a rib inside it even if the bag or the like is deformed. SOLUTION: The capped nozzle comprises a block prevention part 24, consisting of a rib whose cross-section has the shape of a cross, which is inserted into a bag or the like, a joint base part 23 which is fixed between the edges of the bag or the like, a nozzle main body 20 having a tubular part onto which a cap is screwed, and the cap which is screwed onto the tubular part of the nozzle main body 20. In the capped, at least the sides of the rib of the block prevention part 24 which contact the inner faces of the bag or the like have the form of a taper, and a thick wall part 42 is provided at the front end of the rib.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spout with a lid which is sandwiched between two sides of a plastic bag or a paper bag.

[0002]

2. Description of the Related Art As shown in FIG. 1, a gusset-type plastic bag mainly used for filling a beverage liquid such as sports drink, juice, jelly or the like is conventionally known. In such a bag or the like, a spout with a lid is often sandwiched between two sides of the periphery.
The spout body (50) of this spout with lid has
As shown in FIG. 18, four plate-like ribs (51), (52), (53), and (5) formed so as to have a cross-shaped cross section.
An obstruction prevention portion (55) comprising 4) is provided, and the obstruction prevention portion (55) is inserted into the bag to prevent the bag from being obstructed.

[0003]

However, conventionally,
This blocking prevention rib (51) (52) (53) (5
4) is formed linearly in both front and side views,
The ribs formed in such a straight line make it difficult to insert the spout body (50) into the bag, and when the bag is deformed, the ribs (51) and (52) cause the inner surface of the bag to be deformed. However, there was a problem in that the bag was damaged and the bag was damaged in severe cases. Further, at the time of the degassing step in the bag performed before filling the contents, the width (W ″) of the ribs (51) and (52) is large, so that the ribs (51), (52) and (53).
An unnecessary space is formed in the vicinity of the tip of (54), and there is a problem that the gas cannot be sufficiently deaerated. Therefore, the present invention makes it easy to insert the spout body into a bag or the like, and can suitably perform the deaeration process. The purpose is to obtain a spout with a lid.

[0004]

In order to achieve the above object, the present invention provides a spout with a lid used for the following bags and the like. That is, an obstruction preventing portion formed of a cross-shaped cross-shaped rib inserted into the inside of a bag or the like,
A lid configured by an adhesive base sandwiched between peripheral portions of a bag or the like, a spout main body having a cylindrical portion to which the lid is screwed, and a lid screwed to the cylindrical portion of the spout main body. In the attached spout, at least a side of the rib of the blockage preventing portion that comes into contact with the inner surface of the bag or the like is formed in a tapered shape. A closing prevention portion formed of a cross-shaped cross-shaped rib inserted into the bag or the like, an adhesive base sandwiched between peripheral portions of the bag or the like, and a cylindrical portion to which a lid is screwed. In a spout with a lid constituted by an outlet main body and a lid screwed to a cylindrical portion of the spout main body, a thick portion is provided at a tip of at least a side of the rib of the blockage preventing portion which comes into contact with an inner surface of a bag or the like. This is a spout with a lid used for a bag or the like, characterized in that a spout is provided. The lid has tamper-evident prevention means.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on examples shown in the drawings. FIG. 1 is a perspective view of a gusset type bag provided with a spout with a lid according to the present invention and filled with contents, and FIG. 2 is a perspective view showing a lid, a spout body, and a bag. FIG. 3 is a front view showing a state in which the spout is attached to the bag and the lid is screwed. 4 is a front view of the lid body, FIG. 5 is a plan view of the ring body, FIG. 6 is a right half sectional view showing a state where the lid body is unscrewed from the spout body, and FIG. FIG. 6 is a right half cross-sectional view showing a state in which is screwed.
8 is a front view of the spout body, FIG. 9 is a side view of the same, FIG. 10 is a plan view of the same, FIG. 11 is an enlarged front view showing a tip end portion of a rib constituting the blockage prevention section, and FIG. It is an expansion side view similarly. 13 is a partially enlarged front view of the spout main body, FIG. 14 is a cross-sectional view taken along the line XX ′ of FIG. 13, and FIG. 15 is a blockage prevention portion of the spout main body when injection molding is performed by a hot runner. Enlarged front view showing one example, FIG.
6 is an enlarged side view of the same.

As shown in FIG. 1, a spout with a lid according to the present invention is a bag-shaped container mainly for storing a fluid such as a liquid.
That is, a plastic bag or paper bag of a gusset type, a stand type, or the like, or a pouch or the like, or a pouch or the like, which is provided so as to be sandwiched between two sides of an upper side edge portion where a corner is cut. It is. As shown in FIGS. 2 and 3, the spout (1) is provided with a blockage prevention part (24) formed of a cross-shaped rib inserted into the bag (2), and a bag (2). A spout body (20) having an adhesive base (23) sandwiched between the edges of the spout, a tube (21) into which the lid (10) is screwed, and a tube of the spout body (20) (21).

First, the gusset-type bag (2) will be described. As shown in FIGS. 1 to 3, the bag (2) has a front part (3), a rear part (4) and A side portion (5) and a side portion (6).
(6) Inner peripheral part, front part (3) and rear part (4)
Of the front side (3) and the rear side (4), and the inner side upper side edge and the inner side lower side edge of the front side (3) and the rear side (4). The corner portion and the lower corner portion on the outer surface side are bonded to each other. In this case, in consideration of the fact that the content is a liquid, the bonding is performed by an appropriate method such as an adhesive, heat, an ultrasonic seal or the like so as to maintain the liquid tightness.

The bag (2) is often made of plastic and has an inner surface because the bag (2) is mainly used for carrying drink liquids such as sports drinks, juices and jellies, and is often carried and used. A water-resistant material made of a synthetic resin is desirable. In the center of the upper edge of the bag (2),
An insertion hole (7) as shown in FIG. 2 is formed so that the adhesive base (23) of the spout main body (20) can be sandwiched between the spout main body (20) and the insertion hole (7). ), The front part (3) of the bag (2) and the rear part (4) of the bag (2) by an appropriate bonding method such as an adhesive, heat, an ultrasonic seal or the like.
The inner surface and the outer surface of the adhesive base (23) are respectively bonded so as to maintain liquid tightness.

Next, the lid (10) will be described. The lid (10) is made of high-, medium-, or low-density polyethylene,
It is injection molded with polypropylene or the like.
, The cap body (11) and the ring body (1)
2). The cap body (11) and the ring body (12) have a plurality (preferably four) of thin portions (1).
3), the lower peripheral surface of the cap body (11) has a rectangular shape in a side view for preventing the thin portion (13) from being crushed when the lid (10) is taken out from the injection molding die. And a ring body (1) for screwing the lid (10) to the spout body (20) after filling the contents.
A trapezoidal engaging portion (1) which is an engaging member for 2).
A plurality of (preferably two opposed to) 5) protrude from each other, and a trapezoidal engaging portion in a side view, which is also an engaging member for the cap body (11), is provided on an upper peripheral surface portion on the ring body (12) side. (16) are provided in the same number.

The cap body (11) and the ring body (1)
Each of the engaging portions (15) and (16) protruding from 2) is filled with a liquid as a content, and then, when the lid (10) is screwed onto the spout body (20), the cap body is used. Even if the resistance when screwing the (11) and the ring body (12) is different, the ring body (12) can be screwed together with the cap body (11) without breaking the thin part (13). The engaging flanges (26) of the spout body (20), which will be described later, are fixed to the lower part of the ring body (12) by engaging the engaging portions (15) and (16) with each other. When the annular projection (17) provided on the inner peripheral surface gets over, a sufficient force is applied. Others
As shown in FIG. 5, on the upper inner peripheral surface of the ring body (12), a locking portion (18) having a trapezoidal shape in a plan view is formed inward.
Are projected (preferably four).

By the way, the lid (10) according to the present invention.
The pill fur proof means which can prevent unauthorized opening and tampering is provided, and cannot be opened unless the four thin portions (13) are torn. In other words, if the opening has been illegally performed, the thin portion (13) is torn, so that the unauthorized opening can be recognized at a glance. Therefore, the lid (1) screwed to the cylindrical portion (21) of the spout body (20).
When actually opening (0), as shown in FIG. 6, the cap body (11) of the lid (10) is rotated to tear the thin portion (13), and the cap body (11) is removed from the ring body (12). 11) is separated and opened.

At this time, the locking portion (18) provided on the upper inner peripheral surface of the ring body (12) is locked by the locking portion (28) of the spout body (20). The rotation of (12) is prevented, and only the cap body (11) rotates and is unscrewed from the cylindrical portion (21) of the spout body (20). Further, in this ring body (12), an annular projection (17) provided on the lower inner peripheral surface rides over a locking flange (26) formed on the spout body (20) and is fitted. Therefore, the annular projection (17) interferes with the locking flange (26) so that it does not easily come off the spout body (20).

The inner top surface of the cap body (11), which has a large number of grooves (8) on the outer surface, is in contact with the inner peripheral surface of the cylindrical portion (21) of the spout body (20). A ring-shaped insertion member (1) which is inserted while preventing liquid leakage of the contents.
A contact ring (9) having a height of about 0.3 mm is formed on the inner top surface between the fitting member (19) and the inner surface of the cap body (11). Have been.
When the cap body (11) is completely screwed into the spout body (20), the contact ring (9) presses the upper surface of the cylindrical portion (21) of the spout body (20), and furthermore, Liquid leakage is prevented. Needless to say, the unscrewed cap body (11) is connected to the spout body (2).
If screwed back to 0), the bag is sealed again.

Next, the spout body (20) will be described. The spout body (20) is injection-molded from high-, medium-, or low-density polyethylene, polypropylene, or the like. As shown in FIG. When the lid (10) is screwed onto the spout main body (20), the outer peripheral surface of the fitting member (19) vertically hanging on the inner top surface of the cap body (11) of the lid (10) is connected to the spout main body. The cylindrical portion (21) of (20) is fitted while being pressed against the inner peripheral surface thereof, so that tightness for preventing liquid leakage can be maintained. The spout body (20)
As shown in FIGS. 8 and 9, in order from the top, a cylindrical portion (21) to which the lid (10) is screwed, and a spout body (2) using a machine or the like.
0), a gripping portion (22) for gripping when transporting, a boat-like adhesive base (23) sandwiched in the insertion hole (7) of the bag (2), and the inside of the bag (2). And an obstruction preventing portion (24) that is inserted to prevent obstruction of the bag.

A thread (25) into which the cap body (11) of the lid (10) is screwed and an annular projection (17) of the ring (12) are engaged with the cylinder (21). A locking flange (26) is provided, and the locking flange (2) is provided.
A vertical rib (2) for preventing rattling of the fitted ring body (12) between the first flange portion (31) and the first flange portion (31).
7) are provided in plurality. In addition, the locking flange (2
6), four gaps (26a) are provided at substantially equal intervals as shown in FIG. 10, and when the cap body (11) is separated from the ring body (12) and opened, the cap body (11) is opened. The ring body (12) is a non-interference part of the locking part (18) so that the ring body (12) falls downward. In addition, the locking flange (2) near the gap (26a) on the left and right lateral directions
At the upper portion of 6), a locking portion (28) is provided, and as described above, when the cap body (11) is unscrewed and opened, the locking portion (18) of the ring body (12) is opened. ) And the ring body (12) is prevented from rotating.

On the other hand, as shown in FIGS. 8 and 9, the grip portion (22) has a first flange portion (31) and a second flange portion having a width in the left-right lateral direction larger than that of the first flange portion (31). (32) and a third flange portion (33); an angular projection rib (29) protruding between the first flange portion (31) and the second flange portion (32); and a second flange portion. (32)
And a third protruding rib (30) projecting between the first flange portion (33) and the first flange portion (31) when conveyed by a machine or the like (not shown). Between the second flange portion (32) and the second flange portion (32).
And the third flange portion (33).

Further, the adhesive base (23) is formed in a boat shape in plan view, and there is no liquid leakage or the like when sandwiched in the insertion hole (7) provided in the upper edge of the bag (2). So that it can be adhered tightly. As shown in FIGS. 8 and 9, four connecting members (34) from the adhesive base (23).
(35), (36), and (37) are suspended, and the blocking prevention portion (24) is suspended through the connecting members (34), (35), (36), and (37). The obstruction preventing portion (24) is composed of four elongated plate-like ribs (3
8) (39), (40) and (41), which are formed so that the cross section becomes a cross shape. And among these plate-shaped ribs (38) (39) (40) (41),
Ribs (38) and (39) are inserted so as to contact the inner surfaces of the front part (3) and the rear part (4) of the bag (2), respectively, so as to prevent the bag (2) from being closed. Has become.

The present invention is an improvement of the spout (1) as described above, in which the blockage preventing portion (24) of the spout body (20) is improved. That is, at least the ribs (38) and (39) on the side of the bag (2) that are in contact with the inner surfaces of the front surface portion (3) and the rear surface portion (4) of the rib constituting the blockage prevention portion (24) of the spout body (20). 9), as shown in a side view of FIG. 9, a taper-like shape that becomes thinner toward the tip, and a rib (38) formed in the taper-like shape.
At the tip of (39), a thick portion (42) as shown in FIG.
(43) is provided.

With such a configuration, when the blockage preventing portion (24) of the spout body (20) is inserted into the bag (2), the ribs contact the front surface portion (3) and the rear surface portion (4), respectively. (38) Since the contact surface of (39) has a gentle slope, it can be easily inserted, and at the time of the deaeration step of the bag (2), the width of the tip of the rib (38) (39). (W) is smaller than before, so that the ribs (38) (3)
If the bag (2) is compressed and evacuated along the tapered shape of (9), the bag can be evacuated appropriately, and the problem that a space portion which is not evacuated as in the related art remains remains. can do. Further, the ribs (3) on the side of contacting the inner surfaces of the front part (3) and the rear part (4) of the bag (2), respectively.
8) Since the thick portions (42) and (43) are provided at the tip of (39), even if the bag (2) is deformed, the inner surface of the bag (2) is not damaged, and therefore, the bag (2) is not damaged. ) Is not damaged.

The ribs (40) and (41) on the side not in contact with the inner surfaces of the front part (3) and the rear part (4) of the bag (2).
Need not be formed in a tapered shape, but if it is formed in a tapered shape, the width (W ′) of the tip portion of the ribs (40) (41) is larger than the diameter (R) of the cylindrical portion (21). It is desirable to form. This is to prevent the tip of the rib from entering the cylindrical portion (21) when transporting or transporting the injection-molded spout body (20) by a parts feeder or the like. Alternatively, this is to prevent trouble during transportation and to prevent the inner peripheral surface of the cylindrical portion (21) from being damaged.

Injection molding of such a spout body (20) generally includes a molding method using a cold runner and a molding method using a hot runner. In the case of injection molding with a cold runner, as shown in FIGS. 11 to 14, it is preferable to provide a concave portion (45) so that the gate mark (44) of the poured resin does not protrude. 12 shows an example in which a concave portion (45) is provided in a thick portion (42) of one of the ribs (38), and FIGS. 13 and 14 show an example in which a third flange portion (33) of a grip portion (22) is provided. An example is shown. In the case of injection molding using a hot runner, since a heater or the like is wound around a gate into which a resin is poured, the gate diameter is large, and a molded product requires a certain flat surface. Therefore, in the case of molding with this hot runner, as shown in FIGS. 15 and 16, for example, the ribs (38) and (39) are formed short so that the flat surfaces (48) and (49) are formed. It is desirable. Although (46) and (47) are thick portions in this case, the shape and the like are not particularly limited.

As described above, in any case, it is preferable that the rib constituting the blocking prevention portion of the spout body according to the present invention be formed in a tapered shape only on the side that comes into contact with the inner surface of the bag. The part only needs to be on the side that contacts the inner surface of the bag. In addition, the present invention is not limited to the illustrated one, and the design can be appropriately changed within the spirit of the present invention.

[0023]

According to the present invention, at least the rib on the side of the obstruction preventing portion formed of a cross-shaped cross-shaped rib inserted into the bag or the like, which is in contact with the inner surface of the bag or the like, is formed in a tapered shape. Insertion of the blockage prevention portion into the bag or the like becomes easy, and the width of the rib tip becomes smaller than before in the process of deaeration of the bag or the like. In addition, since a thick portion is provided at least at the end of the rib on the side that comes into contact with the inner surface of the bag or the like of the blockage preventing portion formed of a cross-shaped cross-shaped rib inserted into the bag or the like, the bag or the like is deformed. Also, the inner surface of the bag or the like is not damaged, so that the bag or the like is not damaged.

[Brief description of the drawings]

FIG. 1 is a perspective view of a gusset-type bag provided with a spout with a lid and filled with contents.

FIG. 2 is a perspective view showing a lid, a spout body, and a bag.

FIG. 3 is a front view showing a state in which a spout is attached to a bag and a lid is screwed.

FIG. 4 is a front view of a lid.

FIG. 5 is a plan view of a ring body.

FIG. 6 is a right half sectional view showing a state in which the lid is unscrewed from the spout body.

FIG. 7 is a right half sectional view showing a state where the lid is screwed to the spout body.

FIG. 8 is a front view of a spout body.

FIG. 9 is a side view of the above.

FIG. 10 is a plan view of the above.

FIG. 11 is an enlarged front view showing a distal end portion of a rib constituting the blockage prevention section.

FIG. 12 is an enlarged side view of the above.

FIG. 13 is a partially enlarged front view of a spout body.

FIG. 14 is a cross-sectional view taken along line X-X ′ of the above.

FIG. 15 is an enlarged front view showing an example of a blocking prevention portion of a spout body when injection molding is performed with a hot runner.

FIG. 16 is an enlarged side view of the above.

FIG. 17 is a front view of a conventional spout body.

FIG. 18 is a plan view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spout 2 Bag 7 Insertion hole 9 Contact ring 10 Lid 11 Cap body 12 Ring 13 Thin part 14 Contact part 15 Engagement part 16 Engagement part 17 Annular projection 18 Engagement part 19 Fitting member 20 Spout body 21 Tubular part 22 Gripping part 23 Adhesive base part 24 Blocking prevention part 25 Screw part 26 Locking flange part 27 Vertical rib 28 Locking part 29 Projecting rib 30 Projecting rib 31 First flange part 32 Second flange part 33 Third flange part 34 Connecting member 35 Connecting member 36 Connecting member 37 Connecting member 38 Rib 39 Rib 40 Rib 41 Rib 42 Thick part 43 Thick part 45 Depression 46 Thick part 47 Thick part

Claims (3)

[Claims] An obstruction preventing portion comprising a cross-shaped cross-shaped rib inserted into a bag or the like, an adhesive base sandwiched between edges of the bag or the like, and a cylindrical portion to which a lid is screwed. A spout body having a lid and a lid that is screwed to the cylindrical portion of the spout body, and the side of the rib of the blocking prevention section that contacts at least the inner surface of the bag or the like. A spout with a lid used for bags and the like characterized by being formed in a tapered shape. 2. An obstruction preventing portion formed of a cross-shaped rib inserted into a bag or the like, an adhesive base sandwiched between edges of the bag or the like, and a cylindrical portion to which a lid is screwed. A spout body having a spout, and a spout with a lid constituted by a lid screwed to the cylindrical portion of the spout body, the side of the rib of the blockage preventing portion being in contact with at least the inner surface of a bag or the like. A spout with a lid used for bags and the like, characterized in that a thick portion is provided at the tip. 3. The spout with a lid used for a bag or the like according to claim 1, wherein the lid has a means for preventing unauthorized opening.