JP2013082491A - Spout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spout which is favorably applicable especially to a container containing granular contents, sufficiently and reliably prevents leakage of the content usually, and sufficiently and easily discharges a suitable amount of content when discharge is required.SOLUTION: At least the upper end part of a cylindrical wall and a closing wall 6 are formed of an elastically deformable flexible material. A cruciform slit is formed in the closing wall 6. End faces 20a, 20b, 20c, 20d for regulating the cruciform slit are formed in a special shape. Usually, leakage of the content is sufficiently and reliably prevented. In discharging the content, a discharge opening 26 suitable for discharging the content can be formed by pressing the cylindrical wall with, for example, a thumb and an index finger, to sufficiently and easily expanding the slit.

Description

  The present invention relates to a spout applied to a container such as a pouch made of a synthetic resin film, and particularly to a spout that can be advantageously applied when the contents of the container are granules.

  Patent Documents 1 and 2 below disclose a spout having a cylindrical wall and a closing wall that is connected to the distal end or the vicinity of the distal end of the cylindrical wall and closes the cylindrical wall. A cross-shaped slit is formed in advance on the closing wall (Patent Document 1) or is generated when the contents of the container are consumed (Patent Document 2).

Japanese Utility Model Publication No. 5-82848 JP 2008-133209 A

  The conventional spout as described above can be applied without problems when the contents of the container are liquid. When discharging the liquid in the container, the container can be squeezed to apply pressure to the closed wall, thereby expanding the slit and discharging the liquid. However, especially when the contents of the container are granules, it is extremely difficult to squeeze the container and apply pressure to the closed wall, thereby creating an opening suitable for discharging the granules, It is virtually impossible to discharge the granules accordingly.

  The present invention has been made in view of the above-mentioned facts, and its main technical problem can be advantageously applied particularly when the contents of the container are granules, and normally the leakage of the contents is sufficiently ensured. It is to provide a new and improved spout that can be prevented, but which can be discharged easily enough when it is required.

  As a result of intensive studies, the inventor has formed at least the upper end portion of the cylindrical wall and the blocking wall from a flexible material that can be elastically deformed, and in addition to forming the cross-shaped slit in the blocking wall, the cross-shaped slit is defined. If the end face to be used is made into a special shape, the leakage of the contents is normally prevented sufficiently reliably. However, when the contents are discharged, it is easy enough by pressing the cylinder wall with, for example, the thumb and forefinger. It has been found that the slit can be expanded to produce an opening suitable for discharging the contents.

That is, according to the present invention, as a spout that achieves the main technical problem, a spout having a cylindrical wall and a closing wall that is connected to the end of the cylindrical wall or in the vicinity of the distal end and closes the cylindrical wall.
At least the tip of the cylindrical wall and the closing wall are made of a flexible material that can be elastically deformed, and the closing wall has a first straight slit and a second straight slit perpendicular to the first straight slit. A cross-shaped slit composed of
End faces located in the first quadrant and the second quadrant with respect to the cross-shaped slit and extending along the first straight slit are in the first quadrant or the second quadrant from the front surface to the rear surface of the blocking wall. Has an inclined surface inclined to
End faces located in the third quadrant and the fourth quadrant with respect to the cross-shaped slit and extending along the first straight slit are in the third quadrant or the fourth quadrant from the front surface to the rear surface of the blocking wall. Having an inclined surface inclined to
A spout characterized by this is provided.

Preferably, an end face located in each of the first quadrant and the fourth quadrant with respect to the cross-shaped slit and extending along the second linear slit has a first quadrant or a second end face from the front surface to the rear surface of the blocking wall. It has an inclined surface inclined to the four quadrant side,
End faces located in the second quadrant and the third quadrant with respect to the cross-shaped slit and extending along the second linear slit are in the third quadrant or the second quadrant from the front surface to the rear surface of the closed wall. And an inclined surface that is inclined to each other. The cylindrical wall has a thin tip portion and a thick base portion, and at least a part of the outer peripheral surface of the base portion has a cylindrical shape and is formed with a male thread, and further from the top wall and the top wall. An outer lid having a hanging skirt wall, the inner peripheral surface of the skirt wall of the outer lid being cylindrical and formed with a female thread, and the female thread is screwed onto the male thread It is convenient that the outer lid is attached to the cylindrical wall, and the top wall of the outer lid covers the tip of the cylindrical wall.

  In the spout of the present invention, the end surface defining the cross-shaped slit has a special shape. Therefore, as will be clearly understood from the following description, when discharging the contents, for example, the thumb and the index finger. When the cylindrical wall is pressed, the end surfaces are appropriately overlapped to generate an opening suitable for discharging the granules, and thus even when the contents are granules, the appropriate amount can be discharged sufficiently appropriately.

1 is a front view, partly in section, of a preferred embodiment of a spout constructed in accordance with the present invention. The top view of the spout shown in FIG. The bottom view of the spout shown in FIG. The fragmentary figure which shows the end surface of the cross-shaped slit currently formed in the obstruction | occlusion wall of the spout shown in FIG. The top view which shows the state which deform | transformed the cross-shaped slit formed in the obstruction | occlusion wall of the spout shown in FIG. 1, and produced | generated the discharge opening. The front view which shows the outer cover combined with the spout shown in FIG. 1, and shows a part in cross section. The top view of the outer cover shown in FIG. The bottom view of the outer cover shown in FIG. The front view which shows the state which combined the outer cover shown in FIG. 6 thru | or FIG. 8 with the spout shown in FIG. 1 thru | or FIG. The front view which shows a part of other embodiment of the spout comprised according to this invention in a cross section. The front view which shows the state which combined the outer cover with the spout shown in FIG.

  Hereinafter, preferred embodiments of a spout constructed according to the present invention will be described in more detail with reference to the accompanying drawings.

  Referring to FIG. 1 to FIG. 3, a spout which is integrally formed from an appropriate synthetic resin such as polyethylene or polypropylene and which is generally designated by reference numeral 2 has a cylindrical wall 4 and an overall cylindrical wall 4. And a blocking wall 6 that is connected to the tip of the wall 4 and closes the cylindrical wall 4. The boundary region between the cylindrical wall 4 and the blocking wall 6 has an arc shape in the cross section. The base portion of the cylindrical wall 4 is relatively thick, but the distal end portion (that is, the upper portion in the axial direction) of the cylindrical wall 4 and the blocking wall 6 are relatively thin and have sufficient flexibility and elastic deformation. It is important to be.

  On the outer peripheral surface of the main part of the cylindrical wall 4, a male thread 8, an annular locking jaw part 10 positioned below the male thread 8, and a support ring 12 positioned below the locking jaw part 10 are arranged. Has been. The support ring 12 has a substantially regular hexagonal shape. A container connection piece 14 is attached to the lower end of the cylindrical wall 4. The container connection piece 14 in the illustrated embodiment has a cylindrical inner peripheral surface that matches the inner periphery of the cylindrical wall 4 and both sides of the circle (the left end and the right end in FIG. 3) extend radially outward. A pupil-shaped outer peripheral surface. Three ribs 16 are formed on the outer peripheral surface of the container connection piece 14 at intervals in the axial direction. Each of the ribs 16 is interrupted on both sides of the outer peripheral surface. The container connecting piece 14 is formed with two cavities 18 extending upward from the lower end surface in order to prevent so-called sink marks from occurring during molding.

  It is important that the closing wall 6 is provided with a cross-shaped slit composed of a first straight slit 20 extending in the left-right direction in FIG. 2 and a second straight slit 22 extending in the up-down direction in FIG. is there. 4A and 4A together with FIGS. 1 to 3, the cross slit is located in the first quadrant (upper right portion) and the second quadrant (lower right portion) when viewed as the XY axis, and End surfaces 20a and 20b extending along the first linear slit 20 are arranged on the first quadrant side (that is, the upper side in FIG. 2) from the front surface (upper surface in FIG. 1) to the rear surface (lower surface in FIG. 1) or It is important to have an inclined surface that is inclined to the second quadrant side (ie, the lower side in FIG. 2). In the illustrated embodiment, the end surfaces 20 a and 20 b have inclined surfaces that are inclined toward the second quadrant from the front surface to the rear surface of the blocking wall 6. Similarly, end surfaces 20c and 20d that are located in the third quadrant (lower left) and the fourth quadrant (upper left) and extend along the first straight slit 20 are first to the rear surface from the front surface of the blocking wall 6. It is important to have an inclined surface that is inclined to the third quadrant side (ie, the lower side in FIG. 2) or the fourth quadrant side (the upper side in FIG. 2). In the illustrated embodiment, the end surfaces 20c and 20d have inclined surfaces that are inclined toward the fourth quadrant from the front surface to the rear surface of the blocking wall 6. In the embodiment illustrated in FIG. 4a, the end faces 20a (20c) and 20b (20d) are entirely arcuate inclined surfaces. The end faces 20a (20c) and 20b (20d) are not limited to such a form, but as shown in FIG. 4b, the whole is a linear inclined surface, and a part is vertical as shown in FIG. 4c. The surface may be a partly straight inclined surface, or a combination of a relatively gentle inclined surface and a relatively sharp inclined surface as shown in FIG. 4d.

  In the illustrated embodiment, not only the end surfaces 20a to 20d extending along the first linear slit 20, but also the end surfaces 22a to 22d extending along the second linear slit 22 have the required inclined surfaces. That is, when the cross-shaped slit is regarded as the XY axis, the end surfaces 22a and 22d that are located in the first quadrant and the fourth quadrant and extend along the second linear slit 22 are formed from the front surface of the blocking wall 6. It has an inclined surface inclined toward the first quadrant side (that is, the right side in FIG. 2) or the fourth quadrant side (the left side in FIG. 2) toward the rear surface, and is located in the second quadrant and the third quadrant, respectively. The end faces 22b and 22c extending along the second straight slit 22 are inclined to the third quadrant side (that is, the left side in FIG. 2) or the second quadrant side (the right side in FIG. 2) from the front surface to the rear surface of the blocking wall 6. It has an inclined surface.

  Since the end faces 20a to 20d extending along the first straight slit 20 in the cross-shaped slit are made to have a special form as described above, the upper and lower sides in FIG. When pressed, the second quadrant (or first quadrant) of the blocking wall 6 partially rides on the first quadrant (or second quadrant) as shown in FIG. The third quadrant part partially rides on the third quadrant (or the fourth quadrant), thereby generating a discharge opening 26 suitable for the discharge of granules. In the illustrated embodiment, since the end faces 22a to 22d extending along the second linear slit 22 are also formed in a special form as described above, both the left and right sides in FIG. The fourth quadrant (or the first quadrant) of the blocking wall 6 partially climbs over the first quadrant (or the fourth quadrant) and the second quadrant (or The third quadrant) partially rides over the third quadrant (or second quadrant), thereby generating a discharge opening suitable for the discharge of granules.

  A seal piece 28 (shown by a two-dot chain line in FIGS. 1 and 2) can be attached to the front surface of the blocking wall 6 in which the cross-shaped slits are disposed, if necessary. A seal piece 28 shown in the figure, which is formed from an aluminum foil and can be attached or welded with an appropriate adhesive, is attached to the front surface of the closing wall 6 and gripped at the time of peeling with a circular main portion covering the cross-shaped slit. Projecting portion.

  The description will be continued with reference to FIGS. 6 to 8. In the illustrated embodiment, the spout 2 described above is combined with an outer cover generally indicated by the numeral 30. The outer lid 30 that can be locked from an appropriate synthetic resin such as polyethylene or polypropylene has a circular top wall 32 and a skirt wall 34 depending from the periphery of the top wall. A semi-elliptical outer wall 38 is biased to the skirt wall 34 through a plurality (eight in the illustrated example) of connecting ribs 36 arranged at intervals in the circumferential direction. A female thread 40 is formed at the lower part of the inner peripheral surface of the skirt wall 34. In the illustrated embodiment, the skirt wall 34 is provided with a protrusion 42 that extends downward beyond the outer wall 38. A circumferential break line 44 is disposed near the upper end of the protrusion 42, and the protrusion 42 has a base 46 above the circumferential break line 44 and a tamper evidence below the circumferential break line 44. It is partitioned into a skirt 48. The circumferential break line 44 includes a plurality of slits 50 extending in the circumferential direction and a bridging portion 52 positioned between the slits 50, and the tamper evidence skirt portion 48 is connected to the base 46 via the bridging portion 52. Has been. Five locking projections 54 (see FIG. 8 together with FIG. 6) are formed on the inner peripheral surface of the tamper evidence skirt 48. The lower surface of each of the locking protrusions 54 extends from the base edge connected to the inner peripheral surface of the tamper evidence skirt 48 so as to incline upward in the radial direction.

  FIG. 9 illustrates a state in which the outer lid 30 is combined with the spout 2 illustrated in FIGS. When the outer lid 30 is combined with the spout 2, the outer lid 30 is fitted on the cylindrical wall 4 of the spout 2, and the outer lid 30 is rotated clockwise as viewed from above in FIG. The female thread 40 formed on the outer lid 30 is screwed into the male thread 8 that is formed. When the male screw 8 and the female screw 40 are screwed together as required to obtain the state shown in FIG. 9, the locking projection 54 disposed on the tamper evidence skirt 48 of the outer lid 30 is attached to the spout 2. The locking jaw portion 10 disposed on the cylindrical wall 4 is elastically moved over and locked to the locking jaw portion 10. As shown by a two-dot chain line in FIG. 9, the mouth / neck portion of the container 56, which may be a synthetic resin film pouch containing granules, is connected to the container connection piece 14 of the spout 2 in an appropriate manner such as heat welding. The container 56 containing the granules and connected to the spout 2 can be placed on a flat support surface (for example, a table surface) in an inverted state, that is, with the upper surface of the outer lid 30 facing downward.

  When the granules contained in the container 56 are consumed, the outer lid 30 is rotated counterclockwise as viewed from above in FIG. 9 to gradually release the screwing between the male screw 8 and the female screw 40. To do. As a result, the top wall 32 of the outer lid 30, the skirt wall 34, and the base 46 of the protrusion 42 attached to the skirt wall 34 are raised along with the rotation, but the tamper evidence hem 48 is locked by the locking protrusion 54. Since it is locked to the jaw portion 10, the ascent is prevented, thereby generating a stress in the bridging portion 52 of the circumferential break line 44 and breaking the bridging portion 52, so that the tamper evident hem portion 48 is the base portion. 46. Then, the tamper evidence skirt 48 is left on the spout 2, the outer lid 30 is detached from the spout 2, and the cylindrical wall 4 of the spout 2 is exposed. Next, the seal piece 28 (not shown in FIG. 9) attached to the closed wall 6 of the spout 2 is peeled off, and the container 56 and the spout 2 connected thereto are inverted, that is, the spout. The closing wall 6 of 2 is made to face downward, and then the upper end portion of the cylindrical wall 4 is pressed with, for example, the upper and lower sides in FIG. The discharge opening 26 has a size suitable for discharging the granules, and the granules contained in the container 56 can be appropriately discharged. After discharging the required amount of granules, the finger is removed from the upper end of the cylindrical wall 4 to return the cross-shaped slit formed in the blocking wall 6 to its original state, that is, the state shown in FIG. The widths of the first linear slit 20 and the second linear slit 22 constituting the cross-shaped slit are sufficiently narrow, so that the discharge of the granules is stopped. Next, the outer lid 30 is attached to the cylindrical wall 4 of the spout 2, and more specifically, the main portion 32 of the outer lid 30 and the base portion 42 of the protruding portion 34 are attached to the cylindrical wall 4 again.

  10 and 11 illustrate a variation of a spout constructed in accordance with the present invention. In the spout 102 shown in FIGS. 10 and 11, the blocking wall 106 is disposed not near the tip of the cylindrical wall 104 but in the vicinity of the tip, that is, at a position slightly retracted from the tip. And the front-end | tip part of the cylinder wall 4 is made comparatively thick. On the other hand, as shown in FIG. 11, the inner diameter of the upper half of the skirt wall 134 in the outer lid 130 is somewhat expanded, and an annular receiving groove 137 and an annular hanging downward are formed on the outer peripheral edge of the top wall 132. A seal 139 is provided. When the outer lid 130 is attached to the spout 102 as required, the upper end portion of the cylindrical wall 104 is accommodated in the annular receiving groove 137, and the annular seal 139 enters the cylindrical wall 104 and the front end portion of the inner peripheral surface of the cylindrical wall 104 Thus, the cylindrical wall 4 is sealed (therefore, the sealing piece 28 shown by a two-dot chain line in FIGS. 1 and 2 can be omitted). 10 and 11 is substantially the same as the embodiment shown in FIGS. 1 to 9 except for the above-described configuration.

2: Spout 4: Cylinder wall 6: Blocking wall 8: Male thread 20: First linear slit 20a, 20b, 20c and 20d: End face
22: Second linear slits 22a, 22b, 22c and 22d: End face 26: Discharge opening 30: Outer lid 32: Top wall 34: Skirt wall 40: Female thread 102: Spout 104: Tube wall 106: Blocking wall 130: Outer lid 132: Top wall 134: Skirt wall

Claims (3)

In a spout having a cylindrical wall and a blocking wall that is connected to the distal end of the cylindrical wall or in the vicinity of the distal end and closes the cylindrical wall,
At least the tip of the cylindrical wall and the closing wall are made of a flexible material that can be elastically deformed, and the closing wall has a first straight slit and a second straight slit perpendicular to the first straight slit. A cross-shaped slit composed of
End faces located in the first quadrant and the second quadrant with respect to the cross-shaped slit and extending along the first straight slit are in the first quadrant or the second quadrant from the front surface to the rear surface of the blocking wall. Has an inclined surface inclined to
End faces located in the third quadrant and the fourth quadrant with respect to the cross-shaped slit and extending along the first straight slit are in the third quadrant or the fourth quadrant from the front surface to the rear surface of the blocking wall. Having an inclined surface inclined to
Spout characterized by that. End faces located in the first quadrant and the fourth quadrant with respect to the cross-shaped slit and extending along the second straight slit are in the first quadrant or the fourth quadrant from the front surface to the rear surface of the closed wall. Has an inclined surface inclined to
End faces located in the second quadrant and the third quadrant with respect to the cross-shaped slit and extending along the second linear slit are in the third quadrant or the second quadrant from the front surface to the rear surface of the closed wall. The spout according to claim 1, wherein the spout has an inclined surface inclined to the surface. The cylindrical wall has a thin tip and a thick base, and at least a part of the outer peripheral surface of the base is cylindrical and has a male thread.
And further including an outer lid having a top wall and a skirt wall depending from the top wall, the inner peripheral surface of the skirt wall of the outer lid being cylindrical and having female threads formed thereon,
The outer cover is attached to the cylindrical wall by screwing the female thread into the male thread, and the top wall of the outer cover covers the tip of the cylindrical wall. Spout.

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