JP2006062752A - Mouth member and container using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mouth member having a thin wall section capable of being easily broken and more easily unsealed even if the thin wall section to be broken for unsealing is made in a uniform thickness, and a container using the same. <P>SOLUTION: The mouth member 10 to be attached to a container is used to seal a spout for a content of the container, and the spout is unsealed by twisting and breaking the tip of the member without allowing resealing of the spout. A stepped protrusion 18 for threading is protrusively provided at the tip of the spout 16 of the mouth member 10, and an inner hole 22 having a circular cross section formed in the tip of a flow path within the spout 16 is provided at a position located a predetermined distance away from the root of the protrusion 18 for threading toward the tip of the protrusion 18 for threading. A thin wall section 24 of a circular cylindrical shape concentric with the inner hole 22 is provided on the root, and the end face of the closing side of the inner hole 22 is formed into a recessed curved face 26, the depth of which increases toward the axis of the inner hole from the periphery T of the inner hole. The container uses the member 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mouth member that can open a container in a non-resealable state, and a container that uses this mouth member, and in particular, breaks a thin-walled portion that is formed in a circumferential portion in contact with the outlet of a spout. The present invention relates to a mouth member that enables opening of the container and a container using the mouth member.

  Conventionally, in order to open the container in a non-resealable manner, many means have been adopted in which a thin wall portion is provided near the spout of the mouth portion and the container is opened by breaking the thin wall portion. In order to facilitate the breaking of the thin portion, a means for providing a sharp cut groove and forming the thin portion between the opposite surface of the portion and the groove bottom has been proposed. For example, Japanese Patent No. 3030824, a cut groove in contact with the thin portion 4 shown in FIG. 1 (see FIG. 7), a cut groove in contact with the thin portion 4 shown in FIG. 3 of Japanese Utility Model Publication No. 64-39229 (see FIG. 8). Corresponds to this.

  However, since the cut groove (see P in FIG. 7B and Q in FIG. 8) has a sharp angle, the influence of the processing accuracy of the die for manufacturing the mouth member is formed in the mouth member. Since it is easy to appear sensitively to the depth of the cut groove, the thickness of the thin part formed between the surface opposite to the surface provided with the cut groove and the groove bottom is made constant at each position on the circumference. There was a drawback that it was difficult.

Therefore, the inventors of the present invention formed a thin part in a cylindrical shape to eliminate the above-described drawbacks, and configured so that the wall thickness was always constant at each position on the circumference, but it was much larger for breaking the thin part. There was a problem that power was necessary.
Japanese Patent No. 3030824 Japanese Utility Model Publication No. 64-39229

  The problem to be solved is that a thin portion having a uniform thickness on the circumference requires a force to break and is difficult to break.

The present invention is configured as follows.
A A mouth member for attaching to a container in which the spout of the sealed container contents can be opened in a non-resealable manner by threading the tip, and the base end of the mouth member is attached to the container. A hollow portion or a flow hole having one end opened is provided inside the mounting portion, and a spout portion projects from the base end portion, and the hollow portion or flow passage in the base end portion is provided inside the spout portion. A flow passage communicating with the hole is formed, and a threading projection having a diameter smaller than the tip of the spout is provided in a stepped manner on the tip of the spout, and the root of the threading projection The corner of the portion should not be round or small, and the front end of the flow passage in the spout will form a circular inner hole and the periphery of the closed end of the inner hole. Is the tip of the threading projection by a predetermined minute distance from the root A thin portion having a predetermined minute length in a cylindrical shape by being formed into a circular shape concentric with the inner hole between the base portion and a position separated by a predetermined minute distance from the base portion. In addition, the distance from one end of the base portion to the other end near the tip of the threading projection is always from the base portion to the periphery of the closed end of the inner hole. Further, the end face on the closed side of the inner hole is a curved surface that approaches the tip of the threading protrusion as it goes from the periphery of the inner hole toward the inner hole axis, and the tip of the threading protrusion is A torsion engaging protrusion is formed, and the engaging thin protrusion is engaged with a torsional rotation engaging recess formed in another cap and twisted to break the cylindrical thin-walled portion. A mouth member that opens the spout at the end.
B A mouth member according to item A, wherein the base end portion of the mouth member is formed in a substantially long rhombus and the internal cavity is open to the container side.
In the mouth member described in the section A or B, the corner of the root portion of the threading projection has a radius of curvature of 0.1 mm or less, or the thickness of the cylindrical thin section is about 0.2 mm or less, or A mouth member in which the distance from the peripheral edge of the closed end of the hole to the base portion is 0.15 to 0.25 mm, or the end surface of the inner hole is a conical curved surface having an apex angle of about 100 to 140 degrees.
A mouth member with a cap, comprising the mouth member according to any one of items D A to C and a cap used by covering the mouth member, wherein the cap is formed at an end portion of the mouth member therein. An engagement recess or engagement projection for torsion rotation that can be engaged with an engagement projection or engagement recess at the tip of the threaded projection is provided, and one engagement projection is provided in the other engagement recess. A cap-attached mouth member in which the section is held in the cap even after the threaded projection is threaded.
In the mouth member with a cap described in E D, the mouth member is configured such that the engagement protrusion formed on the threading protrusion is a flat protrusion having a predetermined thickness, and the cap is the flat as the torsional rotation engagement recess. A cap-equipped mouth member that is configured to include a holding portion that can be fitted into a press-fitted state.
F A flexible container in which two resin films are overlapped and welded and sealed at the entire periphery, and a suspension hole is provided at the upper end, and a mouth member for pouring contents is provided at the lower end. In
Forming a protruding portion that protrudes upward in a state where either one of the upper end sides is sealed with a predetermined width near the one end, and the shape is such that the corner portion below the protruding portion on the lower end side is cut off, and The mouth member according to any one of the items A to C or the mouth member with a cap according to the term D or E inserts the base end portion between the two resin films of the part, and the resin film on both sides It is welded and sealed so as to surround it, and a suspension hole is provided at a diagonal position with respect to the mouth member in a state where the periphery of the hole is sealed, and the protrusion protrudes laterally. A flexible container provided with a notch or notch for breaking and opening a portion to form an inlet for drinking water or the like.
G is a mouth member for attaching to the container which can open the spout of the sealed container contents by unscrewing the tip part, and the base end of the mouth member is attached to the container. A hollow part or a flow hole with one end opened is provided inside the attachment part, and a spout part projects from the base end part, and the spout part tapers from the middle part to the tip part. In addition, a plurality of straight cylindrical portions of different lengths with different diameters are arranged between the tip of the tapered portion and the tip of the spout portion, and the cylindrical portion has a smaller diameter. A plurality of cylindrical stepped portions are formed so as to be positioned closer to the tip of the spout portion, and the peripheral wall of the spout portion has a predetermined thickness and the front end of the spout portion is closed at a portion continuous with the peripheral wall. Inside the spout, the cavity in the base end In addition, a flow passage communicating with the flow hole is formed, and a threading projection having a diameter smaller than the tip of the spout is provided in a stepped manner on the tip of the spout. The corner of the base portion of the portion should not be rounded or be rounded, and an inner hole having a circular cross section is formed at the center of the distal end of the flow passage in the spout portion. The peripheral edge of the closed end portion of the inner hole is positioned away from the root portion by a predetermined minute distance closer to the tip of the threading projection, and is spaced from the root portion by a predetermined minute distance. The space is formed into a circular shape concentric with the inner hole to form a cylindrical thin portion with a predetermined minute length, and from the end of the base portion of the circularly formed portion to the tip of the threading projection The distance to the other end of the The end face on the closing side of the inner hole is longer than the distance to the periphery of the closing end of the inner hole. And a torsional engagement protrusion is formed at the tip of the threading protrusion, and the engagement protrusion is engaged with a torsional rotation engagement recess formed in another cap and twisted. The mouth member which cut | disconnected the said cylindrical thin part and opened the spout of a flow-path edge part by this.
In the mouth member described in HG, the spout portion is formed so that the corner portion of each cylindrical stepped portion is located on the extension of the generatrix of the tapered portion, and the spout portion is tapered with its base end portion. A mouth member in which a plurality of ring-shaped protrusions having a minute height are formed on the outer peripheral portion thereof.
In the mouth member according to IG item 7 or H term, the tapered portion of the spout portion has an angle between the lines (taper angle) where the plane including the center line contacts both sides of the tapered portion is 9 to 16 °. .
J The mouth member according to any one of Items G to I, wherein a base end portion of the mouth member is formed in an approximately rhombic shape having a long shape and an internal cavity portion is opened to the container side.
In the mouth member according to any one of KG to I, the corner of the base portion of the threading projection has a radius of curvature of 0.1 mm or less, or the thickness of the cylindrical thin portion is about 0.2 mm. Or the distance from the peripheral edge of the closed end of the inner hole to the base portion is 0.15 to 0.25 mm, or the end face of the inner hole is conically curved with an apex angle of about 100 to 140 degrees. Mouth member.
L A cap-attached mouth member comprising the mouth member according to any one of G to K and a cap used by covering the mouth member, wherein the cap is formed at an end portion of the mouth member therein. An engagement recess or engagement projection for torsion rotation that can be engaged with an engagement projection or engagement recess at the tip of the threaded projection is provided, and one engagement projection is provided in the other engagement recess. A cap-attached mouth member in which the section is held in the cap even after the threaded projection is threaded.
In the mouth member with a cap described in the ML section, the mouth member is configured such that the engagement protrusion formed on the threading protrusion is a flat protrusion having a predetermined thickness, and the cap is the flat as the engagement recess for twisting rotation. A cap-equipped mouth member that is configured to include a holding portion that can be fitted into a press-fitted state.
N A flexible container in which two resin films are stacked and welded and sealed at the entire periphery, and a suspension hole is provided at the upper end and a mouth member for pouring the contents is provided at the lower end. In
Forming a protruding portion that protrudes upward in a state where either one of the upper end sides is sealed with a predetermined width near the one end, and the shape is such that the corner portion below the protruding portion on the lower end side is cut off, and Between the two resin films of the part, the mouth member according to any one of the G term to the K term or the mouth member with a cap according to the L term or the M term inserts the base end portion, and the resin films on both sides It is welded and sealed so as to surround it, and further, a suspension hole is provided in a state where the periphery of the hole is sealed at a diagonal position with respect to the mouth member, and on the side of the protrusion A flexible container provided with a notch or notch for breaking and opening a protruding portion so that an inlet for drinking water or the like can be formed.

According to the mouth member of the present invention, the mouth member with a cap, and the container using these, the following effects are exhibited.
Since the thin-walled portion is formed in a cylindrical shape and has a uniform thickness, the thin-walled portion is uniformly broken when a twisting force is applied at the time of opening, and the opening of the mouth is completely performed. (If the thickness of the thin-walled portion is not uniform, when applying torsional force and attempting to break, there will be a portion that will not be broken and it will be difficult to completely open the mouth, but such a problem does not occur in the present invention. .)
As mentioned above, when the torsional force is applied, the thin-walled portion breaks uniformly, and the mouth is completely opened. There are advantages.
The end surface on the closed end side of the circular inner hole formed inside the cylindrical thin wall portion becomes deeper from the peripheral edge of the inner hole toward the center of the inner hole (that is, the threading protrusion The end surface of the closed end has a concave curved surface recessed on the tip side of the threading projection, and is easily broken when a torsional force is applied to the thin wall portion. The ease of opening is improved (this effect was found for the first time during the completion of the invention while the inventors repeated the prototype test.)
In the mouth member with a cap, since the engaging protrusion at the tip of the threading protrusion is press-fitted into the clamping part as the engaging recess of the cap, there is an advantage that the threading protrusion separated at the time of opening does not scatter. .

  For the purpose of making the thickness of the thin-walled portion uniform and facilitating the breaking of the thin-walled portion when opened, a threaded projection with a diameter smaller than the spout portion is stepped on the tip side of the spout portion of the mouth member The tip of the flow path in the spout port has an inner hole with a circular cross section. In addition, the peripheral edge of the closed end of the inner hole is positioned away from the root portion by a predetermined minute distance toward the tip of the threading projection, and the threading projection is separated from the root portion by a predetermined distance. A portion of the inner hole is formed into a circular shape concentric with the inner hole to form a cylindrical thin portion with a predetermined minute length, and the end surface on the closing side of the inner hole extends from the inner periphery of the inner hole to the inner hole. It is a curved surface that approaches the tip of the threading projection as it goes toward the axis. An engagement protrusion for twisting is formed at the tip of the threading protrusion, and the engagement protrusion is engaged with and twisted with a pinching portion as an engagement recess for torsion rotation formed in another cap. Thus, the cylindrical thin-walled portion was broken and the spout at the end of the flow passage was opened.

  FIG. 1 is an explanatory view, partly in section, showing an assembled state of an embodiment of a cap-equipped mouth member according to the present invention. Both are shown enlarged. In the present embodiment, the mouth member 10 and the cap 12 are made of polypropylene (PP).

    As shown in FIG. 2, the mouth member 10 has a spout portion 16 projecting from a base end portion 14 and a threading projection 18 projecting in a stepped manner at its distal end portion. The base end portion 14 has a substantially rhombus shape with both ends sharpened, and has a hollow portion inside, but one end portion on the container mounting side is open. The spout portion 16 has a hollow portion on the inner side, but the inner and outer diameters gradually decrease toward the tip portion, and the tip portion forms a tubular portion 20. The cavity portion communicates with the cavity portion of the base end portion 14. Further, a thread cutting projection 18 is provided at the tip of the circular tubular portion 20, and the projection 18 has a wide flat shape with a constant thickness as shown in FIGS. There is no.

  As shown in an enlarged view in FIGS. 3 and 4, the threading projection 18 has a stepped shape with a diameter that is sharply reduced with respect to the circular tubular portion 20 at the tip of the spout portion 16. In this embodiment, the diameter of the circular tubular portion 20 is about 4 mm, but the tip thereof is tapered to facilitate the insertion into the clamping portion as the engaging concave portion of the cap. The level difference (radial difference) of the shape portion is small. The corner portion of the step, that is, the corner of the root portion of the threading projection 18 is not rounded or the roundness (radius of curvature) is reduced, stress concentration occurs when the thin portion is broken. Desirable in terms of easy opening.

  As shown in FIGS. 3 and 4, an inner hole 22 having a circular cross section is provided on the inner side of the tubular portion 20, and a portion having a circular outer periphery concentric with the inner hole 22 is provided near the base of the threading projection 18. A cylindrical thin portion 24 having a predetermined minute thickness t is provided. Further, the peripheral edge portion T of the inner hole 22 is located at a position that is a predetermined minute distance S away from the root portion of the threading projection 18, and the thin portion 24 is formed in the dimension portion of S.

  A concave curved surface 26 is formed at the closed end of the inner hole 22 so as to increase in depth from the peripheral edge T toward the center of the inner hole (that is, closer to the tip of the threading projection). It is formed. In this embodiment, a conical curved surface having an apex angle α (see FIGS. 3 and 4) of about 100 to 140 degrees is formed as the concave curved surface. The concave curved surface 26 that follows the thin-walled portion 24 is useful for facilitating the breakage of the thin-walled portion 24 by twisting the threading protrusion 18 and improving the ease of opening. (This effect was found for the first time at the time of the prototype test of the present inventors in the process of completing the invention as described above.) As the concave curved surface, for example, a concave spherical surface obtained by cutting off a part of the spherical surface may be used. .

  In this embodiment, the corner of the root portion of the threading projection has a radius of curvature of 0.1 mm (0.1 R) or less, and the thickness t of the thin wall portion is 0.2 mm or less, and the inner hole 22 is closed from the root portion. The distance s to the periphery of the end was set to 0.2 mm or less. The closed end portion of the inner hole 22 closes the spout portion and forms a portion for sealing the mouth member.

  The configuration of each unit shown in FIGS. 4A and 4B is the same as that in FIG. However, since the threading projection 18 faces the thickness direction with a small dimension, there is a difference in that an inclined portion exists between the base of the threading projection 18 and the thin portion 24. The tip of the threading projection 18 constitutes a torsional engagement projection, and can be press-fitted into a clamping portion as an engagement recess in the cap 12.

    As shown in FIG. 5, the cap 12 is formed so that one end on the bottom side of the bottomed cylindrical member has a narrow width so that it can be easily picked with a finger. A clamping part 30 is formed as an engaging concave part into which the mating protrusion can be press-fitted. As shown in FIG. 1, the attachment to the mouth member 10 covers the opening end of the cap 12 over the spout 16 of the mouth member 10, and the engagement protrusion at the tip of the threading protrusion 18 serves as an engagement recess. This is performed by press-fitting into the sandwiching portion 30.

6A and 6B, two multilayer resin films laminated with aluminum are overlapped, and a peripheral portion is welded to form a container main body 34. The container main body 34 has a predetermined width at one end on the upper end side and is sealed by welding the peripheral edge. In this state, a protruding portion 35 protruding upward is formed, and the container body 34 has a shape in which the lower corner of the protruding portion 35 on the lower end side is cut off. The resin film is welded in a state where a substantially rhombus-shaped portion of the base end portion 14 of the mouth member 10 is sandwiched, and a suspension hole 38 is provided at a diagonal position of the mouth member 10 and the periphery of the hole 38 is welded. Thus, the flexible container 36 is configured by sealing.
And the side part of the protrusion part 35 is formed with a notch 40 for breaking and opening the protrusion part 35 in the lateral direction as shown by the dotted line in FIG. It can be used as an injection port for pouring drinking water or the like when food edible or beverages are too concentrated. If the part is folded after opening, it can prevent that dust etc. penetrate | invade. A cut may be provided instead of the cutout 40. One of the resin films laminated with aluminum is composed of an aluminum film adhered to the outside of the transparent resin film, and the inside of the container is made visible when the aluminum film is peeled off. .

  In order to open the flexible container, the substantially rhombic portion of the mouth member is held by hand from the outside of the resin film, and the cap 12 is turned with the other hand and twisted by 90 to 150 degrees. Easy to open. At this time, there is an advantage that it can be easily understood that it has been opened by the impact at the time of breaking and the impact sound generated at that time. Since the thin part is broken, it is of course impossible to reseal.

  FIG. 9 is a partial cross-sectional explanatory view showing an assembled state of another embodiment of the cap-equipped mouth member of the present invention, and the cap 12 is attached to the mouth member 40 so as to be attached. The same cap as the cap used in the above embodiment is used. These are all illustrated in an enlarged manner. In this embodiment, the mouth member 40 and the cap 12 are made of polypropylene (PP) as in the above embodiment.

As shown in FIG. 10, the mouth member 40 has a spout 44 projecting from a base end 42, and a threading projection 46 projecting in a stepped manner at its distal end. The base end portion 42 has a substantially rhombus shape with both ends sharpened, and is similar to the above embodiment in that the inner end has a hollow portion but the one end portion on the container mounting side is open. It differs in that it has The spout portion 44 has a predetermined thickness and has a hollow portion on the inside, but has a cylindrical shape near the base portion, and a tapered portion 48 is formed at a portion closer to the tip than that. A plurality of straight cylindrical portions 50 having a predetermined length with different diameters are arranged on the portion closer to the tip, and the plurality of cylindrical portions 50 are successively arranged with smaller diameters as they approach the tip of the spout portion. Has been. As a result, the plurality of cylindrical portions 50 are gradually reduced in diameter and are stepped. In addition, the corner | angular part of the step part of the cylindrical part 50 is located on the extension line | wire of the tangent which touches the taper-shaped part 48 outer side, as shown in FIG. 11, FIG. In the present embodiment, the stepped cylindrical portion 50 is formed at three locations including the tip portion, but can be further increased or decreased. 58 is a ring-shaped protrusion. The spout portion has a cylindrical shape between the base end portion and the tapered portion, and a plurality of ring-shaped protrusions 58 having a minute height are formed on the outer peripheral portion thereof. The cap 12 can be easily attached and detached.

The plurality of straight cylindrical portions formed in the vicinity of the tip of the spout portion have the advantage of being easy to insert and easy to use because they are easy to pinch and slide with fingers when inserted into a tube or the like during use. Further, since the straight cylindrical portion has the smallest diameter and gradually becomes larger, there is an advantage that it is easy to adapt to the size of the tube or the like to be used.
The tapered portion 48 has a taper angle β of about 12 ° 30 ′ as shown in FIGS. 11 and 12, but can be increased or decreased as appropriate. The cavity portion communicates with the cavity portion of the base end portion 14. In addition, a threading projection 46 is provided at the tip of the cylindrical portion 50 at the end of the spout portion, and this projection 46 has a constant thickness as shown in FIGS. 10 (a) and 10 (b). It is wide and flat.

As shown in FIGS. 11 and 12 in an enlarged manner, the threading projection 46 has a stepped shape with a diameter that is sharply reduced with respect to the cylindrical portion 50 at the tip of the spout portion. It should be noted that the stepped corner portion of the stepped portion, that is, the corner of the base portion of the threading projection 46 may not be rounded or the roundness (curvature radius) may be reduced to break the thin portion. It is desirable in that it causes stress concentration and facilitates opening. About this point, it is the same as that of the case of the said Example.

As shown in FIGS. 11 and 12, an inner hole 52 having a circular cross section is provided at the center of the top of the spout 44, and the outer periphery is concentric with the inner hole 52 near the base of the threading projection 46. The thin portion 54 having a predetermined cylindrical thickness t ₁ is formed. Further, the peripheral edge portion T1 of the inner hole 52 is in a position apart by a minute distance S ₁ from the base portion a predetermined threading projection 46, the thin portion 54 is formed on this S ₁ becomes dimension portion. This is the same as the relation between the wall thickness t and the minute distance s in the above embodiment.

A concave curved surface 56 is formed at the closed end of the inner hole 52 so as to increase in depth from the peripheral edge T1 toward the center of the inner hole (that is, closer to the tip of the threading projection). It is formed. In this embodiment, a conical curved surface having an apex angle α ₁ (see FIGS. 11 and 12) of about 100 to 140 degrees is formed as the concave curved surface. The concave curved surface 56 following the thin wall portion 54 is useful for facilitating the breakage of the thin wall portion 54 when the threaded projection 46 is twisted to break the thin wall portion 54 and improving the ease of opening. About this point, it is the same as that of the case of the said Example. As the concave curved surface, for example, a concave spherical surface obtained by cutting off a part of the spherical surface may be used.

In the present embodiment, the corner of the root portion of the threading projection is set to have a radius of curvature of 0.1 mm (0.1 R) or less and the thickness t ₁ of the thin wall portion is 0.2 mm or less, as in the previous embodiment. the distance _{S 1} to the peripheral edge of the closed end portion of the inner hole 52 was 0.2mm or less from. The closed end of the inner hole 52 closes the spout and forms a part for sealing the mouth member.

  The configuration of each part shown in FIGS. 12A and 12B is the same as that in FIG. However, since the threading projection 46 faces the thickness direction with a small dimension, there is a difference in that an inclined portion exists between the base portion of the threading projection 46 and the thin portion 54. The tip of the threading projection 46 constitutes a torsional engagement projection that can be press-fitted into a clamping portion as an engagement recess in the cap 12.

  Although the cap 12 is shown in FIG. 5, as shown in FIG. 9, the cap 12 is attached to the opening end 46 of the cap member 40 over the spout 46 of the mouth member 40 as shown in FIG. The engaging protrusion is press-fitted into the holding portion 30 as the engaging recess of the cap 12.

As in the case of FIG. 6 showing the embodiment, the mouth member 40 is welded to a container main body 34 formed by superposing two multilayer resin films laminated with, for example, aluminum and welding the peripheral edge portion, and is flexible. A conductive container 36 is configured. Other configurations and methods of use are the same as in the above-described embodiment.
In this embodiment, since a plurality of straight cylindrical portions are formed near the tip of the spout portion, when inserting into a tube or the like during use, it is easy to pinch with a finger and difficult to slide, so that insertion is easy and easy to use. There is an advantage. Further, since the straight cylindrical portion has the smallest diameter and gradually becomes larger, there is an advantage that it is easy to adapt to the size of the tube or the like to be used.

  The flexible container can be opened in the same manner as in the above embodiment, and can be easily opened. At this time, the advantage that it can be easily understood from the impact at the time of breakage and the impact sound generated at that time is also the same as in the above embodiment. Since the thin part is broken, it is of course impossible to reseal.

  The mouth member of the present invention has a sealing container for storing, storing, packaging, etc. of other substances, parts, members, etc. by changing the size of the mouth member and the size of the thin part. It can be applied as a mouth member of a packaging container. Further, the container to which the mouth member is attached can be applied as a container for storing the substance or the like.

(A), (b) is explanatory drawing which shows the Example of an opening | mouth member with a cap, (c) is CC sectional drawing in the same figure (a). (A)-(c) is the front view, side view, and top view which fractured | ruptured some components used for the Example. (A) is the elements on larger scale of the part shown to FIG. 2 (a) of the same component, (b) is the A section detail drawing of the same elements enlarged view. (A) is the elements on larger scale of the part shown to FIG. 2 (b) of the same component, (b) is the B section detailed drawing of the part enlarged view. (A)-(c) is sectional drawing of the front side of other components used for the said Example, sectional drawing of a side, and bottom view. It is explanatory drawing which shows the Example of the container using the said mouth member with a cap. (A), (b) is explanatory drawing which shows the prior art example of a mouth member, and is the D section enlarged view in the same figure (b). (Patent Document 1) It is explanatory drawing which shows the other conventional example of a mouth member. (Patent Document 2) (A), (b) is explanatory drawing which shows the other Example of a mouth member with a cap, (c) is DD sectional drawing in the same figure (a). (A)-(d)) is the front view, side view, top view, and bottom view which fractured | ruptured some components used for the Example. (A) is the elements on larger scale of the part shown to FIG. 10 (a) of the same component, (b) is the E section detail drawing of the same elements enlarged view. (A) is the elements on larger scale of the part shown to FIG. 10 (b) of the same component, (b) is the F section detail drawing of the same element enlarged view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Opening member 12 Cap 16 Outlet part 18 Thread cutting protrusion 22 Inner hole 24 Thin part 26 Concave surface 30 Clamping part (engagement recessed part)
34 Container body 36 Flexible container 40 Mouth member 42 Base end portion 44 Spout portion 46 Thread cutting projection 48 Tapered portion 50 Cylindrical portion 52 Inner hole 54 Thin portion 58 Ring-shaped projection

Claims (14)

  A mouth member for attaching a spout of a sealed container content to a container that can be opened in a non-resealable manner by threading the tip, and the base end of the mouth member is attached to the container. A hollow portion or a flow hole with one end opened is provided inside the discharge port portion, and a spout portion projects from the base end portion, and the hollow portion or flow hole in the base end portion is provided inside the spout portion. And a threading projection having a diameter smaller than the tip of the spout portion is provided in a stepped manner on the tip side of the spout portion, and the root portion of the threading projection The end of the flow path should not be round or small, and the front end of the flow passage in the spout will form an inner hole with a circular cross section and the peripheral edge of the closed end of the inner hole will be The tip of the threading projection by a predetermined minute distance from the base portion A thin portion having a predetermined minute length is formed into a circular shape concentric with the inner hole between the base portion and a position separated by a predetermined minute distance from the base portion. In addition, the distance from one end of the base portion of the part formed into a circle to the other end near the tip of the threading projection is always the distance from the base portion to the peripheral edge of the closed end of the inner hole. Further, the end face on the closed side of the inner hole is a curved surface that is closer to the tip of the threading projection as it goes from the periphery of the inner hole toward the axis of the inner hole, and the tip of the threading projection is twisted. An engagement projection is formed, and the cylindrical projection is broken by engaging and twisting the engagement projection with a torsional rotation engagement recess formed in another cap. A mouth member that opens the spout of the part.   The mouth member according to claim 1, wherein a base end portion of the mouth member is formed in a substantially long rhombus and an internal cavity is open to the container side.   3. The mouth member according to claim 1 or 2, wherein the corner of the root portion of the threading projection has a radius of curvature of 0.1 mm or less, or the thickness of the cylindrical thin portion is about 0.2 mm or less, or the inner hole A mouth member in which the distance from the peripheral edge of the closed end to the base portion is 0.15 to 0.25 mm, or the end face of the inner hole is a conical curved surface having an apex angle of about 100 to 140 degrees.   A cap-attached mouth member comprising the mouth member according to any one of claims 1 to 3 and a cap used by covering the mouth member, wherein the cap is formed at an end of the mouth member therein. An engagement recess or engagement projection for torsion rotation that can be engaged with the engagement projection or engagement recess at the tip of the threaded projection is provided, and one engagement projection is press-fitted into the other engagement recess. A cap-attached mouth member in which the section is held in the cap even after the threading projection is threaded.   5. The cap-equipped mouth member according to claim 4, wherein the mouth member is configured such that an engaging protrusion formed on the threading protrusion is a flat protrusion having a predetermined thickness, and the cap is the flat as an engaging recess for twisting rotation. A cap-equipped mouth member that is configured to include a holding portion that can be fitted into a press-fitted state. In a flexible container in which two resin films are stacked and welded and sealed at the entire periphery, a suspension hole is provided at the upper end portion, and a mouth member for pouring contents is provided at the lower end side. ,
Forming a protruding portion that protrudes upward in a state where either one of the upper end sides is sealed with a predetermined width near the one end, and the shape is such that the corner portion below the protruding portion on the lower end side is cut off, and The mouth member according to any one of claims 1 to 3 or the mouth member with a cap according to claim 4 or 5 inserts the base end portion between two resin films of a portion, and the resin films on both sides It is welded and sealed so as to surround it, and further, a suspension hole is provided in a state where the periphery of the hole is sealed at a diagonal position with respect to the mouth member, and on the side of the protrusion A flexible container provided with a notch or notch for breaking and opening a protruding portion so that an inlet for drinking water or the like can be formed.   A mouth member for attaching a spout of a sealed container content to a container that can be opened in a non-resealable manner by threading the tip, and the base end of the mouth member is attached to the container. A hollow portion or a flow hole having one end opened is provided on the inside thereof, and a spout portion projects from the base end portion, and the spout portion is tapered from the middle portion to the tip portion. A taper-shaped portion is formed, and between the tip of the taper-shaped portion and the tip of the spout portion, a plurality of straight cylindrical portions of predetermined lengths having different diameters are arranged, and the smaller the cylindrical portion, the smaller the diameter. A plurality of cylindrical stepped portions are formed so as to be located closer to the tip of the outlet portion, and the peripheral wall of the spout portion has a predetermined thickness and the tip of the spout portion is closed at a portion continuous with the peripheral wall. Inside the spout is also the cavity in the base end In addition, a flow passage communicating with the flow hole is formed, and a threading protrusion having a diameter smaller than the tip of the spout part is provided in a stepped manner on the front end side of the spout part. The corner of the base portion of the portion should not be rounded or be rounded, and an inner hole having a circular cross section is formed at the center of the distal end of the flow passage in the spout portion. The peripheral edge of the closed end portion of the inner hole is positioned away from the root portion by a predetermined minute distance closer to the tip of the threading projection, and is spaced from the root portion by a predetermined minute distance. The space is formed into a circular shape concentric with the inner hole to form a cylindrical thin portion with a predetermined minute length, and from the end of the base portion of the circularly formed portion to the tip of the threading projection The distance to the other end of the The inner surface is longer than the distance to the periphery of the closed end portion of the inner hole, and the end surface on the closed side of the inner hole is a curved surface that approaches the tip of the threading projection as it goes from the periphery of the inner hole toward the inner hole axis. A threading projection is formed at the tip of the threading projection, and the engagement projection is engaged with and twisted with a torsional rotation engaging recess formed in another cap. A mouth member in which the cylindrical thin wall portion is broken to open the spout at the end of the flow passage.   8. The mouth member according to claim 7, wherein the spout portion is formed such that a corner portion of each cylindrical stepped portion is positioned on an extension of the generatrix of the tapered portion, and the spout portion is tapered with its base end portion. A mouth member in which a plurality of ring-shaped protrusions having a minute height are formed on the outer peripheral portion thereof.   The mouth member according to claim 7 or 8, wherein the tapered portion of the spout portion has an angle (taper angle) between 9 to 16 degrees between lines where a plane including a center line thereof contacts both sides of the tapered portion.   The mouth member according to any one of claims 7 to 9, wherein a base end portion of the mouth member is formed in a substantially rhombic shape having a long shape, and an internal cavity portion is opened to the container side.   The mouth member according to any one of claims 7 to 9, wherein the corner of the base portion of the threading projection has a radius of curvature of 0.1 mm or less, or the thickness of the cylindrical thin portion is about 0.2 mm. Or the distance from the peripheral edge of the closed end of the inner hole to the base portion is 0.15 to 0.25 mm, or the end face of the inner hole is conically curved with an apex angle of about 100 to 140 degrees. Mouth member.   It is a mouth member with a cap provided with the mouth member of any one of Claims 7-11, and the cap used covering this mouth member, Comprising: A cap is formed in the edge part of a mouth member in the inside. An engagement recess or engagement projection for torsion rotation that can be engaged with the engagement projection or engagement recess at the tip of the threaded projection is provided, and one engagement projection is press-fitted into the other engagement recess. A cap-attached mouth member in which the section is held in the cap even after the threading projection is threaded.   13. The mouth member with a cap according to claim 12, wherein the mouth member is configured such that an engaging protrusion formed on the threading protrusion is a flat protrusion having a predetermined thickness, and the cap is the flat as an engaging recess for twisting rotation. A cap-equipped mouth member that is configured to include a holding portion that can be fitted into a press-fitted state.   In a flexible container in which two resin films are stacked and welded and sealed at the entire periphery, a suspension hole is provided at the upper end portion, and a mouth member for pouring contents is provided at the lower end side. Forming a protruding portion that protrudes upward in a state where the periphery of the upper end side is sealed with a predetermined width on the one end side, and has a shape in which a corner portion below the protruding portion on the lower end side is cut off, and The mouth member according to any one of claims 7 to 11 or the cap-attached mouth member according to claim 12 or 13 inserts the base end portion between the two resin films of the portion, and the resin on both sides It is welded and sealed so as to be surrounded by a film, and a suspension hole is provided at a diagonal position with respect to the mouth member in a state where the periphery of the hole is sealed, and to the side of the protrusion. Break the protrusion A notch or incision for opening provided, the flexible container so as to form an inlet for water and the like.

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