JP2003341704A - Plug having built-in opening blade - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug having a built-in opening blade which stops at a position free from interfering with a re-sealing cap even when an opening cylinder is transferred by pouring-out of a content. <P>SOLUTION: The plug comprises a spout 100 having a built-in opening cylinder 300 and a cap 200, and when the cap is rotated in the screwing-off direction, the opening cylinder having the opening blade 310 built in the inner side of the pouring out cylinder of the spout and having the opening blade 310 in the lower edge descends accompanying the rotation of the cap to break a seal film mounted in the downward side and open the container. An opening cylinder drop preventing protrusion 141 is arranged in a sliding groove 140 between sliding vertical ribs 130 mounted in the inner circumferential surface of the spout to prevent the unopened opening cylinder from dropping and an opening cylinder return preventing protrusion 142 is arranged in the upward vicinity of the position where the opening cylinder is downward kicked out by a guiding inner cylinder of the cap in opening. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to sake, fruit juice beverage,
The present invention relates to a tamper-proof opening blade built-in blade that is provided at the top of a liquid paper container used for seasonings, softeners, liquid detergents and the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6 (a), a liquid paper container (20) has a rectangular columnar body (21), and a gable roof top sloping plate (22). For the sake of ease of pouring, the one having the opening plug with a built-in blade (10) provided in a protruding manner has been used in a wide range of product fields. As shown in FIG. 6 (b), for example, as shown in FIG.
A plurality of triangular opening blades (310) are provided at the lower end of the blade (31).
1) The vertically opened unsealing tubular body (300) is built into the spout (100) (spouting device) inside the pouring tube (110) so that it can be lowered, and the cap (200) screwed to the spout.
When the screw is rotated in the unscrewing direction, the spiral sliding contact guide inclined surface provided on the outer peripheral surface of the inner guide tube vertically installed at the center position of the top plate of the cap and the inner surface of the opening cylinder. The unsealing tubular body (300) is lowered by the sliding contact with the spiral slidable contact guide inclined surface provided on the peripheral surface, and the liquid sheet is opened by the unsealing blade (310) provided at the lower end of the unsealing tubular body. It is known that the sealing film (400) for sealing the container is broken and opened. It should be noted that the provision of the cutting edge portion is to prevent the broken pieces (401) of the sealing film from falling into the content (30). And, in this mouthpiece with a built-in opening blade, the mouthpiece with the sealing film heat-sealed to the lower surface of the spout to seal the lower opening of the spout tube is poured into the mouthpiece mounting hole of the liquid paper container. As shown in FIG. 6 (a), an internal attachment with the upper surface of the flange attached by heat-sealing the upper surface of the flange to the inner surface of the container, and a sealing film (40) for the liquid paper container (20).
There is an external attachment that attaches the lower surface of the flange (120) of the spout (100) to the upper surface of the outer peripheral edge of the spout hole (23) sealed with 0) by heat fusion.

[0003]

However, in the above-mentioned opening plug with a built-in opening blade, the cap is rotated in the unscrewing direction to lower the opening cylinder and seal the liquid paper container. After breaking (400) and opening, removing the cap, tilting the container and pouring out the contents from the spout, when trying to reseal the spout again with the cap, the cap is screwed well on the spout. There were things I couldn't do. This is because when the contents are pouring out vigorously from the spout, the unsealing cylinder, which is stopped only by suppressing the broken opening hole of the sealing film, causes the opening hole of the sealing film by the flow output of the contents. When the cap is screwed onto the spout for resealing after moving from the restraint of the spout to the spout outlet direction, the lower end of the slidable contact guide inclined surface (cam) of the cap and the opening tubular body are This is because the upper end of the sliding contact guide inclined surface (cam) interferes with each other.

The present invention solves the above-described problem of the conventional opening plug with a built-in opening blade, and for resealing even if the opening cylinder moves in the pouring direction due to the flow output of the contents. (EN) Provided is a plug with a built-in opening blade, in which an unsealing tube body stops at a position where it does not interfere with a cap screwed to the.

[0005]

That is, the first aspect of the present invention
The invention of claim 1 is formed by a spout that is provided at a pouring position of the liquid paper container and has a tubular body for opening, and a cap that is screwed to the spout, and when the cap is rotated in a screwing direction, A mouth for opening the container by opening the unsealing cylinder having the unsealing blade at the lower end which is built inside the spout's pouring cylinder and breaks the sealing film provided below to open the container. In the stopper, in the sliding contact groove between the sliding contact vertical ribs provided on the inner peripheral surface of the spout, in addition to the unsealing tubular body fall prevention projection of the upper end portion for preventing the unsealing tubular body from falling, It is a cap with a built-in opening blade, wherein an opening tubular body return preventing projection is provided at a position near an upper position where the opening tubular body is kicked out downward by the guide inner tube of the cap at the time of opening.

Next, a second invention of the present invention is characterized in that the unsealing tubular body return preventing projection is horizontally provided in the sliding contact groove in the shape of an inverted right triangle having a rounded vertical section. The opening plug with a built-in blade according to the first invention.

Next, a third invention of the present invention is that the unsealing tubular body return preventing projection is provided in the sliding contact groove in the shape of a hemispherical upper part and in the shape of an inverted half-cone downward. The opening plug with a built-in blade according to the first aspect of the invention.

According to a fourth aspect of the present invention, the unsealing tubular body return preventing projection has a hemispherical shape in an upper part and an inverted half-cone shape in a downward direction in the sliding contact groove. The opening blade built-in plug according to the first aspect of the present invention, which is provided in parallel.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the opening blade built-in stopper of the present invention will be described in detail with reference to the drawings. Figure 1
FIG. 3 is a cross-sectional view of the opening blade built-in stopper according to the embodiment of the present invention. FIG. 2 is an explanatory view showing a state in which the opening tubular body is generally kicked downward at the lower end of the sliding contact guide inclined surface of the inner guide tube of the cap when the cap is unscrewed. 3A is a plan view of the spout, and FIG. 3B is a sectional view. FIG. 4A is a plan view of the unsealing cylinder,
FIG.3 (b) is sectional drawing.

One embodiment of the present invention, the opening blade built-in stopper (1
As shown in FIG. 1, 0) is a spout (100) movably incorporating an unsealing cylinder (300) having an unsealing blade (310) at the lower end, and a cap (20) screwed to this spout.
0) and the cap is connected to the tamper-evident ring (230) having an engaging portion (231) on the inner peripheral surface of the lower end via a plurality of thin fragile bridges (223) on the lower end of the peripheral wall (220), A guide inner cylinder (24) provided with two opposing sliding contact guide inclined surfaces (241) at the center of the lower surface of the top plate (210) for lowering the unsealing cylinder on the outer peripheral surface at equal intervals in the circumferential direction.
0), and the unsealing cylinder (300) has two sliding contact guide inclined surfaces (corresponding to the sliding contact guide inclined surfaces of the cap, as shown in FIGS. 4A and 4B). 301) are provided on the inner circumferential surface at equal intervals in the circumferential direction, and usually four sliding protrusions (320) are provided on the upper end of the outer circumferential surface at equal intervals in the circumferential direction.
0), as shown in FIGS. 3 (a) and 3 (b),
Normally, eight sliding vertical ribs (130) corresponding to the sliding protrusions of the unsealing cylinder are provided on the inner peripheral surface of 10) at equal intervals in the circumferential direction, and the screwing portions (111) of the outer peripheral surface are formed. An engaging portion (112) with which the engaging portion of the tamper-evident ring of the cap engages by fitting or biting is provided below. Then, as shown in FIGS. 1 and 3B, the sliding contact groove (140) between the sliding contact vertical ribs (130) provided on the inner peripheral surface of the spout (100).
In addition to the opening cylinder drop prevention protrusion (141) at the upper end for preventing the opening of the opening cylinder when it is not opened, as shown in FIG. (2
The sliding tubular guide return preventing projection (142) is provided in the vicinity of the upper side of the position where the unsealing tubular body (300) is kicked downward by the slidable contact guide inclined surface (241) of 40).

The unsealing tubular body return preventing projection (14) provided in the sliding contact groove (140) on the inner peripheral surface of the spout (100).
As shown in FIGS. 1 and 3 (b), the shape of 2) is normally an inverted right-angled triangular shape with rounded vertical cross sections and is provided in the horizontal direction. It may be a hemispherical shape in the upper part with less resistance and an inverted half-cone shape in the lower part. In addition, if necessary, in order to reduce the resistance to jump over, the number is reduced, or two pieces are arranged in a horizontal direction in a small shape with a hemispherical shape on the upper side and an inverted half-faced cone shape as shown in FIG. 5 (b). It may be provided.

[0012] In the opening stopper built-in opening blade with tamper proof of the present embodiment attached to the container, the cap rises when the cap is rotated in the screw-out direction, but the tamper-evident ring is engaged with the spout. The thin brittle bridges that connect the lower end of the peripheral wall of the cap and the tamper-evident ring are cut by the rotational force of the cap, so that the cap and the tamper-evident ring are separated, and the cap is rotated. And the sliding contact guide inclined surface of the cap and the sliding contact guide inclined surface of the unsealing tubular body slide down to lower the unsealing tubular body to unseal the sealing film that seals the lower container. The container is opened by breaking with an opening blade provided at the lower end of the cylindrical body. Then, after using the contents as much as necessary, the cap is screwed onto the spout's spout tube to reseal the container. Even if it is poured out, the opening tubular body is prevented from returning to the upper vicinity of the position where the opening tubular body is kicked downward by the sliding contact guide inclined surface of the guide inner tube of the cap of the sliding contact groove on the inner circumference of the spout. A protrusion is provided, and the unsealing cylinder is out of the restraint of the opening hole of the sealing film due to the flow output of the contents,
Even if the spout moves toward the pouring direction, the sliding projection provided on the upper end of the outer peripheral surface of the unsealing tube comes into contact with the unsealing tube return prevention projection and stops. Since it does not move, even if the cap is screwed onto the spout for resealing after pouring out the contents, the lower end of the sliding contact guide inclined surface of the cap and the sliding contact guide inclined surface of the opening cylinder are There is no interference with the upper end.

[0013]

EFFECTS OF THE INVENTION The opening blade built-in stopper of the present invention is an opening tube at a position where it does not interfere with the screwed cap even when the cap is unscrewed to open and the contents are strongly poured out from the spout. Since the body is stopped, the cap does not interfere with the opening cylinder and the cap cannot be screwed into the spout.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an opening blade built-in plug according to an embodiment of the present invention.

[Fig. 2] When the cap of the opening blade built-in stopper shown in Fig. 1 is unscrewed, when the unsealing cylinder is generally kicked downward at the lower end of the sliding contact guide inclined surface of the inner guide cylinder of the cap. It is explanatory drawing which shows the state of.

3A is a plan view of a spout of the opening blade built-in plug shown in FIG. 1, and FIG. 3B is a sectional view.

4 (a) is a plan view of an unsealing cylinder of the opening blade built-in stopper shown in FIG. 1, and FIG. 4 (b) is a sectional view.

5 (a) and 5 (b) are explanatory views showing the shape of another embodiment of the unsealing tubular body return preventing projection provided on the inner peripheral surface of the spout of the opening blade built-in plug according to the present invention.

FIG. 6A is an explanatory diagram showing a state before opening of the liquid paper container to which the opening blade-embedded stopper of the example is attached,
(B) is an explanatory view showing a state when opened.

[Explanation of symbols]

10 ... Plug with built-in opening blade 20 ... Liquid paper container 21 ... Body 22 ... Top sloping plate 23 ... pouring hole 30 …… Contents 100 ... spout 110 ... Dispenser 111,221 …… Screwed part 112, 231 ... Engagement part 120 ...... flange 130 ... Sliding contact vertical rib 140 ... Sliding groove 141 ... Opening cylinder drop prevention protrusion 142: Opening cylinder return prevention protrusion 200 …… Cap 210: Top plate 211 ... Contact sealing ring 212 …… Inner sealing ring 220 ... Surrounding wall 222 ...... Thin wall fragile bridge 230: Tamper-proof ring 240 ... Inner cylinder for guide 241, 301 ...... Sliding contact guide inclined surface 300 ... Opening cylinder 310 ... Opening blade 311 ... missing edge 320 ... sliding protrusion 400 ... Sealing film 401 ... Fragment

Claims (4)

[Claims] 1. A spout that is provided at a pouring position of a liquid paper container and has an opening tubular body and a cap that is screwed to the spout. When the cap is rotated in a screw unscrew direction, An unsealing tube body having an unsealing blade at the lower end built inside the spout tube of the spout descends as the cap rotates, breaking the sealing film provided below to open the container. In the mouth plug, in the sliding contact groove between the sliding contact vertical ribs provided on the inner peripheral surface of the spout, in addition to the unsealing tubular body drop prevention projection at the upper end portion for preventing the unsealing tubular body from falling. A cap with a built-in opening blade, characterized in that an opening cylinder return preventing protrusion is provided at a position near an upper position of a position where the opening inner cylinder is kicked out downward by the guide inner cylinder of the cap when opening. 2. A built-in opening blade according to claim 1, wherein the unsealing tubular body return preventing projection is provided in the sliding contact groove in an inverted right-angled triangular shape having a rounded vertical section in a horizontal direction. Mouth plug. 3. The unsealing blade according to claim 1, wherein the unsealing tubular body return preventing projection is provided in the sliding contact groove so as to have a hemispherical upper shape and an inverted half conical downward shape. Built-in spout. 4. The unsealing tubular body return prevention projections are provided in the sliding contact groove in parallel with each other in a horizontal direction with a hemispherical upper shape and an inverted half-cone shape downward. The plug with a built-in opening blade according to claim 1.