JP6474703B2 - Extraction container with transition stopper - Google Patents

Description

  The present invention includes a bottle-shaped container body having a mouth portion, a body portion, and a bottom portion, an inner plug that is attached to the mouth portion of the container body, and that dispenses contents from the dispensing tube, and the inside and outside of the dispensing tube. The present invention relates to a dispensing container with a transition plug comprising a transition plug having a sealing portion to be sealed and an overcap detachably provided on the inner plug, and particularly, when the overcap is removed from the middle plug, the transition plug is broken. The planned portion is to be surely broken.

  Conventionally, as this type of pouring container with a transition stopper, for example, one described in Patent Document 1 is known. In Patent Document 1, the transition plug is provided with a cylindrical wall portion connected to the sealing portion, and a sealing tube connected to the cylindrical wall portion via a planned fracture portion. In addition, the transition plug is fitted to the inner plug by getting over the undercut via a locking protrusion formed on the sealing cylinder. Further, when the overcap is attached to the inner plug while the sealing tube is fitted to the inner plug, the cylindrical wall portion is fitted to the overcap by overcoming the undercut. Then, when the user removes the overcap at the start of use of the dispensing container, the planned breakage part of the transition plug breaks, and the user confirms that the container has not been opened by the sound and feel at the time of the breakage. It can be done.

JP 2012-46209 A

  However, in what is described in Patent Document 1, the inner peripheral surface of the sealing tube of the transition plug is formed by forcibly removing the lower mold for injection molding the transition plug. The protruding width of the locking ridge to be formed cannot be set sufficiently large, and the upper surface of the locking ridge needs to be set to a shape inclined downward toward the inside in the radial direction. For this reason, depending on the strength variation of the planned rupture part at the time of manufacture, the usage environment, etc., there is a concern that the planned rupture part may not break as intended when the overcap is opened, and the sealing tube may come off from the inner plug. Is done.

  The present invention has been developed to solve such a problem, and provides a pouring container with a transition plug that can reliably break the planned break portion of the transition plug when the overcap is removed from the inner plug. With the goal.

That is, the gist configuration of the present invention is as follows.
1. A bottle body having a mouth part, a body part and a bottom part, and a container main body for storing contents therein, an inner stopper attached to the mouth part of the container main body, and for discharging the contents from a dispensing tube, A transition plug having a sealing portion that seals the inside and the outside of the dispensing tube, and an overcap provided detachably on the inner plug,
The transition plug has a cylindrical wall portion connected to the sealing portion, and a sealing tube connected to the cylindrical wall portion via a planned fracture portion, and via a locking protrusion formed on the sealing tube. And by fitting over the undercut to the fitting peripheral wall formed in the inner plug,
When the overcap is attached to the inner plug in a state where the sealing tube is fitted to the inner plug, the cylindrical wall portion is fitted to the overcap by getting over an undercut,
The breakable portion is provided with a transition plug, which breaks when the overcap is removed from the inner plug while the sealing tube is fitted to the inner plug and the cylindrical wall portion is fitted to the overcap. In the container,
The sealing tube has at least one notch formed along an upper end edge of the locking protrusion, and a shape of a portion of the locking protrusion located below the notch is the locking protrusion. The dispensing container with a transition plug is characterized in that the fitting strength between the locking protrusion and the fitting peripheral wall is increased by being different from the shape of the remaining portion of the stripe.

2. The top surface of a portion of the locking protrusion that is located below the notch is inclined to the inside in the radial direction horizontally or upwardly.

3. The above-described notch is a pour-out container with a transition plug according to the above 1 or 2, wherein the notch is a pair of notches arranged at two positions facing each other.

4). The overcap is a ceiling wall part having a through hole in the center, an annular inner wall part suspended from the peripheral part of the through hole, and a locking protrusion formed on the inner peripheral surface of the annular inner wall part, And is fitted to the tubular wall portion of the transition plug through the undercut via the locking protrusion of the annular inner wall portion,
The pouring container with a transition plug according to any one of 1 to 3, wherein the upper surface of the locking protrusion on the annular inner wall portion is inclined horizontally or upward toward the radially inner side.

  According to the present invention, by providing a notch along the upper edge of the locking protrusion on the sealing tube, a slide mold for forming the outer peripheral surface of the sealing tube at the time of injection molding of the transition plug, and the sealing tube The upper surface of the locking protrusion can be formed together with the notch by cutting (butting) with the lower mold to form the inner peripheral surface. Therefore, it is possible to increase the fitting strength between the locking ridge and the fitting peripheral wall by making the shape of the portion located below the notch in the locking ridge different from the shape of the remaining portion of the locking ridge. It becomes possible. And according to the latching protrusion formed in this way, the fitting state of a sealing cylinder and an inner stopper can be maintained reliably.

  Therefore, according to this invention, when removing an overcap from an inner stopper, the extraction container with a transition stopper which can be made to fracture | rupture reliably the fracture | rupture scheduled part of a transition stopper can be provided.

It is a partial cross section side view of the extraction container with a transition stopper concerning one embodiment of the present invention, and shows the state at the time of unused. The middle stopper of the extraction container with a transition stopper of Drawing 1 is shown, (a) is a top view and (b) is a fragmentary perspective view seen from the direction of arrow A of (a). It is a top view of the transition stopper of the extraction container with a transition stopper of FIG. It is a side view of the transition stopper of the extraction container with a transition stopper of FIG. It is a bottom view of the transition stopper of the extraction container with a transition stopper of FIG. It is a partial cross section side view of the pouring container with a transition stopper of FIG. 1, and it is the figure seen from the angle different from FIG. It is a partial cross section side view of the extraction container with a transition stopper of Drawing 1, and shows the state where an overcap was removed at the time of use start. It is a longitudinal cross-sectional view of the extraction container with a transition stopper of FIG. 1, and shows the state at the time of extraction. It is a partial cross section side view which shows the extraction container with a transition stopper concerning other embodiment of this invention according to FIG. It is a partial cross section side view which shows the extraction container with a transition stopper concerning other embodiment of this invention according to FIG.

Hereinafter, with reference to FIGS. 1-8, it demonstrates in detail about the extraction container with a transition stopper which concerns on one Embodiment of this invention.
In the present specification, the vertical direction corresponds to the vertical direction in FIG. 1 on the basis of the state in which the pouring container with a transition stopper is set up.

  As shown in FIG. 1, the dispensing container 1 with a transition plug according to the present embodiment includes a container body 20, an inner plug 30, a transition plug 40, and an overcap 50. The container body 20 has a bottle shape having a mouth portion 21, a trunk portion (not shown), and a bottom portion (not shown), and contains contents therein.

  In the present embodiment, a slit valve 60 and a valve pressing member 70 are assembled to the inner plug 30, and the dispensing container 1 is a content in the container body 20 when the body portion of the container body 20 is squeezed. Things can be dispensed. As the contents, for example, liquids for food such as soy sauce and dressings are used, but the contents are not limited thereto.

  As shown in FIGS. 1 to 2, the inner plug 30 has a mounting cylinder portion 31 attached to the mouth portion 21 of the container body 20 at the proximal end portion thereof. On the inner peripheral surface of the mounting cylinder portion 31, a locking groove 31 a that is locked so as to be prevented from coming off when getting over is provided on a locking protrusion 21 a that is provided on the outer peripheral surface of the mouth portion 21 of the container body 20. Has been. That is, the inner plug 30 is adapted to fit into the mouth portion 21 of the container body 20 by getting over an undercut (uneven portion) via the locking protrusion 21a and the locking groove 31a.

  Further, the mounting cylinder portion 31 is provided with a thin portion 31b along the locking groove 31a. The thin-walled portion 31b is broken when the inner stopper 30 is removed from the container main body 20 when the dispensing container 1 is disposed and discarded. More specifically, the thin-walled portion 31b is circumferentially provided with a long hole 31c extending in the circumferential direction serving as a base point of fracture. In addition, 31d is a drain hole, for example, for draining cooling shower water to be performed downward after heat filling of the contents.

  On the outer peripheral side of the thin portion 31b, an outer cylinder portion 31e that is removed by breaking the thin portion 31b is connected. In the region above the long hole 31c on the inner surface of the outer cylindrical portion 31e, a plurality of longitudinal ribs 31f for preventing slipping are formed at intervals. Further, at one end in the circumferential direction of the long hole 31c, the outer cylinder portion 31e has a substantially V-shaped cutout V in the upper portion of the thin portion 31b, and the lower portion of the thin portion 31b extends in the vertical direction. The existing thin portion 31g. Accordingly, a finger is inserted from the side of the thin portion 31g toward the long hole 31c, the thin portion 31g is broken, a portion provided with a plurality of anti-slip vertical ribs 31f is picked, and the thin portion 31b is pulled. The outer cylinder portion 31e can be removed from the mounting cylinder portion 31 by breaking the portion in the circumferential direction.

  As shown in FIG. 1, a lower flange portion 32 extends to the inner peripheral side at the upper end of the mounting cylinder portion 31. The lower flange portion 32 is provided with a seal cylinder 33 that is in liquid-tight contact with the inner peripheral surface of the mouth portion 21 of the container body 20. A lower peripheral wall portion 34 is erected on the inner peripheral edge of the lower flange portion 32, and a male screw 34 a is formed on the outer peripheral surface of the lower peripheral wall portion 34. A plurality of vertical ribs 34 b are arranged at equal intervals in the circumferential direction on the inner peripheral surface of the lower peripheral wall portion 34. Each vertical rib 34 b has a locking projection 34 c for locking the valve pressing member 70.

  At the upper end of the lower peripheral wall portion 34, an intermediate flange portion 35 is extended to the inner peripheral side. On the inner peripheral edge of the intermediate flange portion 35, an upper peripheral wall portion 36 as a fitting peripheral wall is erected. A locking protrusion 36 a for locking the transition plug 40 is provided around the outer peripheral surface of the upper peripheral wall portion 36. At the upper end of the upper peripheral wall portion 36, an upper flange portion 37 extends to the inner peripheral side. The upper surface of the upper flange portion 37 constitutes an annular seat surface 37a for a projection 43b provided at the lower end edge of a cylindrical wall portion 43 of the transition plug 40 described later. A frustoconical top wall 38 is connected to the inner peripheral edge of the upper flange portion 37, and a dispensing cylinder 39 is erected on the inner peripheral edge of the top wall 38.

  The extraction tube 39 has a shape that is reduced in diameter from the base end side upward and expanded in diameter so that the tip is rolled toward the outer peripheral side. In addition, a reduced diameter portion 39 a that is in liquid-tight contact with a sealing pin 41 (sealing portion) of the transition plug 40 described later is formed on the inner peripheral surface of the dispensing cylinder 39.

  A slit valve 60 is attached to the proximal end side of the dispensing tube 39. In this example, the slit valve 60 includes a disk-shaped elastic wall 62 having a cross-shaped slit 61 formed at the center thereof, an annular wall 63 suspended from the outer peripheral edge of the elastic wall 62, and a lower end of the annular wall 63. It consists of a flange 64 extending from the edge to the outer peripheral side.

  The slit valve 60 is provided so that the contents are not poured out (leaked out) only by tilting the container body 20 when the low-viscosity contents are stored in the container body 20. Further, when the container body 20 is squeezed and poured out, the slit valve 60 prevents the contents from popping out at a stretch.

  The valve pressing member 70 includes an annular ring 71 and a cylindrical wall 72 erected on the inner peripheral edge of the annular ring 71. On the outer peripheral surface of the annular ring 71, a locking protrusion 71 a that locks the locking protrusions 34 c formed on the plurality of vertical ribs 34 b of the inner plug 30 described above so as to be able to get over and from the bottom is provided. ing. By locking the locking protrusion 71a with the locking protrusion 34c on the inner plug 30 side, the upper surface of the annular ring 71 of the valve pressing member 70 comes into contact with the lower surface of the flange 64 of the slit valve 60. The upper surface of the flange 64 is in contact with the lower surface of the upper flange portion 37 of the inner plug 30, and the slit valve 60 is fixed to the inner plug 30 by the valve pressing member 70.

  Further, the dispensing tube 39 is sealed by the transition plug 40 shown in FIGS. 1 and 3 to 5 at the reduced diameter portion 39a. Specifically, the transition plug 40 includes a sealing pin 41 as a sealing portion that seals the inside and outside of the dispensing tube 39. The sealing pin 41 is inserted from the tip of the dispensing cylinder 39 and extends downward, and the outer peripheral surface of the sealing pin 41 is in liquid-tight contact with the reduced diameter portion 39 a of the dispensing cylinder 39. The distal end portion 41 a of the sealing pin 41 presses the elastic wall 62 of the slit valve 60 to keep the slit 61 slightly open. The distal end portion of the sealing pin 41 is solid, and the proximal end portion is hollow.

  A flange-like top wall portion 42 extends to the outer peripheral side at the proximal end portion of the sealing pin 41. The top wall portion 42 is formed such that the outer peripheral side portion 42a has a larger vertical width than the inner peripheral side portion 42b. A circumferential groove 42 c is provided on the upper surface of the outer peripheral side portion 42 a of the top wall portion 42. In addition, the circumferential groove 42c is separated into a plurality in the circumferential direction by a plurality of vertical walls arranged uniformly in the circumferential direction.

  A cylindrical wall 43 is suspended from the outer peripheral edge of the top wall 42. A locking protrusion 43 a for locking to the overcap 50 is provided around the outer peripheral surface of the cylindrical wall portion 43. At the lower end edge of the cylindrical wall portion 43, a protrusion 43b that abuts on the upper surface of the upper flange portion 37 of the inner plug 30, that is, the annular seat surface 37a, is provided. The protrusions 43 b are configured as a pair of protrusions having a semicircular arc shape with the axis O of the cylindrical wall portion 43 as the center. In addition, you may provide the protrusion 43b in multiple numbers or the perimeter at intervals in the circumferential direction.

  A flange portion 44 is extended to the outer peripheral side at the lower end edge of the cylindrical wall portion 43. A sealing tube 46 is connected to the outer peripheral edge of the flange portion 44 via a planned fracture portion 45. On the inner peripheral surface side of the lower end edge of the sealing tube 46, there is a locking ridge 46a that locks against the locking ridge 36a formed on the outer peripheral surface of the above-described upper peripheral wall portion 36 so as to prevent over-passage. It is installed. In other words, the sealing tube 46 is fitted to the upper peripheral wall portion 36 (fitting peripheral wall) by overpassing the undercut via the locking protrusion 36a and the locking protrusion 46a.

  Here, the sealing tube 46 is formed with a pair of notches 46b facing each other along the upper edge of the locking protrusion 46a. Although one or three or more notches 46b can be provided, it is preferable to provide the notches 46b at two locations facing each other across the axis O as in this embodiment. Further, in the present embodiment, the notch 46b has a substantially U shape in a side view opened upward, but is not limited to such a form. For example, the notch 46b has a rectangular opening in a side view that penetrates the sealing tube 46. You may have done. By providing such a notch 46b, as shown in FIG. 6, the upper surface 46a1 of the portion located below the notch 46b in the locking ridge 46a is inclined horizontally or upward toward the radially inner side. It becomes possible to mold into a horizontal shape in the illustrated example.

  The transition plug 40 is formed by injection molding. The injection molding is performed by, for example, an upper mold that molds the upper surface of the top wall portion 42, a sealing pin 41, a lower surface of the top wall portion 42, and a cylindrical wall portion 43. A lower mold that forms the peripheral surface and the inner peripheral surface of the sealing tube 46, and a pair of slide molds that form the outer peripheral surface of the cylindrical wall portion 43, the outer peripheral surface of the sealing tube 46, and the notch 46b of the sealing tube 46 are used. Can be done. The upper mold and the lower mold can be moved in the vertical direction, and the pair of slide molds can be moved in the horizontal direction. And the upper surface 46a1 of the latching protrusion 46a can be formed with the notch 46b by the biting (butting) of such a lower mold | type and a pair of slide type | mold.

  As shown in FIG. 1, the overcap 50 includes a disk-shaped ceiling wall portion 51, an annular outer wall portion 52 that is suspended from the outer peripheral edge of the ceiling wall portion 51, and an inner peripheral side of the annular outer wall portion 52. It consists of a screw cylinder 53 suspended from the ceiling wall 51 and an annular inner wall part 54 suspended from the ceiling wall 51 on the inner peripheral side of the screw cylinder 53. A female screw 53 a attached to a male screw 34 a formed on the outer peripheral surface of the lower peripheral wall portion 34 of the inner plug 30 described above is formed on the inner peripheral surface of the screw cylinder 53. On the outer peripheral surface of the screw cylinder 53, a plurality of reinforcing vertical ribs 53b are formed so as to be evenly arranged in the circumferential direction. In the mounted state, the lower end edge of the screw tube 53 is in contact with the upper surface of the lower flange portion 32 of the inner plug 30 in the attached state.

  An uneven portion mechanism for preventing cap loosening may be provided between the female screw 53a of the screw tube 53 of the overcap 50 and the male screw 34a of the inner plug 30. For example, a convex portion or a concave portion (not shown) can be formed at the peak portion of the female screw 53a of the overcap 50, and a vertical rib (not shown) can be formed below the male screw 34a of the inner plug 30. It is preferable to provide such uneven portions and vertical ribs at positions near the end of the cap tightening, but by doing so, when the overcap 50 is completely tightened, the vertical ribs get over the uneven portions and are fitted. The click feeling by can also be provided. Furthermore, if the screw cylinder 53 part corresponding to the convex part and the concave part provided in the female screw 53a is formed into a thin wall shape, the structure is easy to bend, and loosening of the overcap 50 can be prevented more advantageously.

  On the inner peripheral side of the lower end edge of the annular inner wall portion 54, a locking protrusion that locks the locking protrusion 43 a formed on the outer peripheral surface of the cylindrical wall portion 43 of the transition plug 40 described above so as to prevent getting over and over. A strip 54a is provided around. That is, when the overcap 50 is attached to the inner plug 30 in a state in which the sealing tube 46 is fitted to the inner plug 30, the cylindrical wall portion 43 has the engagement protrusion 43 a and the engagement protrusion 54 a on the overcap 50. Through the undercut. Note that the center of the ceiling wall portion 51 has a shape slightly bent downward.

  According to such a configuration, the dispensing container 1 can be assembled by the following steps. First, as a first step, the slit valve 60 is attached to the inner plug 30 with the valve pressing member 70. Next, as a second step, the transition plug 40 is attached to the inner plug 30. That is, the sealing tube 46 of the transition plug 40 is fitted to the upper peripheral wall portion 36 (fitting peripheral wall) of the inner plug 30 through the locking protrusions 36a and the locking protrusions 46a by getting over the undercut. At that time, the protrusion 43b provided around the lower end edge of the cylindrical wall portion 43 of the transition plug 40 abuts on an annular seat surface 37a provided at the upper end of the upper peripheral wall portion 36 (fitting peripheral wall) of the inner plug 30. The action of the load on the planned fracture portion 45 is suppressed, and the occurrence of the fracture of the planned fracture portion 45 is prevented.

  Next, as a third step, the overcap 50 is attached to the transition plug 40 and the inner plug 30. That is, with the sealing tube 46 fitted to the inner plug 30, the overcap 50 is attached to the inner plug 30, and the cylindrical wall portion 43 is attached to the overcap 50 via the locking protrusion 43 a and the locking protrusion 54 a. And fit by overpassing the undercut. Also at this time, the projection 43b of the transition plug 40 abuts against the seating surface 37a of the inner plug 30, so that the action of the load on the planned fracture portion 45 is suppressed, and the fracture of the planned fracture portion 45 is prevented. .

  In the present embodiment, the projections 43b provided on the lower end edge of the cylindrical wall portion 43 of the transition plug 40 are formed as a pair of protrusions 43b having a semicircular arc shape centering on the axis O of the cylindrical wall portion 43. In this third step, whether or not the space between the sealing pin 41 of the transition plug 40 and the reduced diameter portion 39a of the dispensing tube 39 of the inner plug 30 is properly sealed after the overcap 50 is attached. It is possible to perform a leak inspection for inspecting the above. That is, in such a leak test, air pressure is applied to the lower side (base end side) of the dispensing cylinder 39 to check whether air has leaked to the upper side (leading end side) of the dispensing cylinder 39. However, if appropriate sealing is not performed, air can be leaked through a gap between the pair of protrusions 43b. In addition, the clearance gap between the lower end edge of the cylindrical wall part 43 of the transition plug 40 and the seating surface 37a is made as small as possible to alleviate the impact in each assembly process of the pouring container 1, and This is preferable for preventing breakage of the planned breakage portion 45.

  Finally, as a fourth step, the inner stopper 30 with the transition stopper 40 and the overcap 50 attached is attached to the mouth portion 21 of the container body 20 filled with the contents. That is, the inner plug 30 to which the transition plug 40 and the overcap 50 are attached is fitted to the mouth portion 21 of the container body 20 by getting over the undercut via the locking protrusion 21a and the locking groove 31a. Also at this time, the protrusion 43b of the transition plug 40 abuts against the seating surface 37a of the inner plug 30, the action of the load on the planned fracture portion 45 is suppressed, and the occurrence of the fracture of the planned fracture portion 45 is prevented. .

  In the present embodiment, the annular seat surface 37a is provided at the upper end of the upper peripheral wall portion 36 (fitting peripheral wall) of the inner plug 30 and the projection 43b is provided at the lower end edge of the cylindrical wall portion 43 of the transition plug 40. However, instead of this, the arrangement of the seating surface 37a and the projection 43b may be reversed. That is, an annular seating surface is provided at the lower end edge of the cylindrical wall portion 43 of the transition plug 40, and a protrusion (preferably, an upper end of the upper peripheral wall portion 36 (fitting peripheral wall) of the inner plug 30 is in contact with the annular seating surface. A pair of protrusions having a semicircular arc shape centering on the axis O of the inner plug 30 may be provided. Further, such an annular seating surface 37a and the protrusion 43b are not necessarily provided.

  When the user uses the dispensing container 1 with the transition plug assembled and shipped in this way, when the overcap 50 is removed for the first time, the transition stopper 40 is broken at the planned fracture portion 45 as shown in FIG. Therefore, the user can confirm that the container has not been opened by the sound and feel at the time of breaking. Here, in this embodiment, as described above, the upper surface 46a1 of the portion located below the notch 46b in the locking protrusion 46a of the sealing tube 46 is directed radially inward as shown in FIG. Therefore, the fitting strength between the locking projection 46a and the locking projection 36a of the inner plug 30 is increased and the fitting is performed. The strength can be made larger than the strength of the planned fracture portion 45. Therefore, due to variations in strength of the planned breakage portion 45 at the time of manufacture, usage environment, and the like, the planned breakage portion 45 does not break as intended when the overcap 50 is opened, and the sealing tube 46 is detached from the inner plug 30. The occurrence of such a problem can be avoided.

  As described above, the locking protrusion 46a of the sealing tube 46 has a shape in which the upper surface 46a1 of the portion located below the notch 46b in the locking protrusion 46a is inclined horizontally or upward toward the radially inner side. It is not limited to things. That is, the locking ridge 46a is different from the shape of the remaining portion of the locking ridge 46a in that the portion of the locking ridge 46a located below the notch 46b is different from the shape of the remaining portion of the locking ridge 46b. As long as the fitting strength with the peripheral wall portion (fitting peripheral wall) 36 is increased, any configuration can be adopted. For example, the locking ridge 46a has a protruding width inward in the radial direction of a portion located below the notch 46b in the locking ridge 46a, and a protruding width inward in the radial direction of the remaining portion of the locking ridge 46a. Larger configurations can be used.

  The transition plug 40 moves to the overcap 50 side while leaving the sealing tube 46 due to the breakage of the planned breakage portion 45, and thereafter, the discharge tube 39 is sealed together with the overcap 50.

  Then, as shown in FIG. 8, when the container body 20 is tilted and the body portion of the container body 20 is squeezed, the slit 61 of the slit valve 60 is opened, and the contents in the container body 20 are poured out through the dispensing tube 39. be able to.

  As shown in FIG. 1, when the overcap 50 is attached, the sealing pin 41 presses the elastic wall 62 of the slit valve 60 to keep the slit 61 slightly open. When not in use, the slit 61 is prevented from being fixed due to drying and solidification of the attached contents.

Next, referring to FIG. 9, a detailed description will be given of a pouring container with a transition stopper according to another embodiment of the present invention.
As shown in FIG. 9, the pouring container 1 ′ with a transition plug according to the present embodiment increases the fitting force between the overcap 50 ′ and the transition plug 40 ′. That is, the pouring container 1 ′ with a transition plug according to the present embodiment has a ceiling wall portion 51 ′ and an annular inner wall portion 54 of the overcap 50 ′ as compared with the embodiment described with reference to FIGS. 1 to 6. The shape of ', the shape of the top wall portion 42' of the transition plug 40 ', and the shape of the upper surface of the flange portion 44' of the transition plug 40 'are different, but are otherwise the same.

  More specifically, in the present embodiment, the overcap 50 ′ includes a ceiling wall portion 51 ′ having a through hole 51a in the center, an annular inner wall portion 54 ′ suspended from the peripheral edge of the through hole 51a, And a locking protrusion 54a ′ formed on the inner peripheral surface of the annular inner wall portion 54 ′. Further, the overcap 50 ′ is undercut on the cylindrical wall portion 43 ′ of the transition plug 40 ′ via the locking projection 54a ′ of the annular inner wall portion 54 ′ and the locking projection 43a ′ of the transition plug 40 ′. Mated by getting over.

  Here, by providing the through hole 51a in the ceiling wall portion 51 ′ of the overcap 50 ′, the upper surface 54a1 of the locking protrusion 54a ′ of the annular inner wall portion 54 ′ is horizontally or upwardly directed radially inward. It can be formed into an inclined shape. The overcap 50 ′ is formed by injection molding. Depending on the upper mold used for the injection molding, the upper surface 54a1 of the locking projection 54a ′, the inner peripheral surface of the annular inner wall portion 54 ′ positioned above the upper surface, and This is because the upper surface of the ceiling wall 51 ′ can be formed. In the illustrated example, the upper surface 54a1 of the locking protrusion 54a 'is formed in a horizontal shape toward the inside in the radial direction.

  The top wall portion 42 ′ of the transition plug 40 ′ is formed in a disc shape and is disposed in a through hole 51 a formed in the ceiling wall portion 51 ′ of the overcap 50 ′. The top surface of the top wall portion 42 'of the transition plug 40' is flush with the top surface of the ceiling wall portion 51 'of the overcap 50'. The upper surface of the flange portion 44 ′ of the transition plug 40 ′ is formed horizontally, and the lower end portion of the annular inner wall portion 54 ′ of the overcap 50 ′ is in contact with the upper surface.

  Therefore, according to the present embodiment, it is possible to obtain the same effect as that of the embodiment described with reference to FIGS. 1 to 6, and the overcap 50 ′ and the transition plug via the locking protrusion 54 a ′. By increasing the fitting force with 40 ', it is possible to avoid the occurrence of a problem that the planned break portion 45 does not break as intended when the overcap 50' is opened and the overcap 50 'is detached from the sealing tube 46. be able to.

Next, referring to FIG. 10, a detailed description will be given of a pouring container with a transition plug according to still another embodiment of the present invention.
As shown in FIG. 10, the pouring container 1 ″ with a transition stopper according to the present embodiment not only increases the fitting force between the overcap 50 ′ and the transition stopper 40 ″ but also by tilting the container body 20, The contents are to be poured out. That is, in the dispensing container with a transition stopper 1 ″ according to the present embodiment, the body portion of the container body 20 is configured so as to be squeezable in comparison with the embodiment described with reference to FIG. The slit valve 60 and the valve pressing member 70 are not provided, the diameter dimension of the extraction tube 39 'of the inner plug 30' is larger, and the sealing portion (sealing tube) of the transition plug 40 " 47) is different in shape, but is otherwise identical in configuration. According to such a configuration, it is possible to obtain the same effect as in the embodiment described with reference to FIG.

  The above description shows only one embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, in the embodiment shown in FIGS. 1 to 8, as in the case of the embodiment shown in FIG. 10, the contents may be poured out by its own weight only by tilting the container body 20.

  Further, the inner plugs 30 and 30 ′ have been described as having the outer cylinder portion 31 e for separation and disposal, but it is not always necessary to have such a configuration having the outer cylinder portion 31 e. Further, the inner plugs 30 and 30 ′ are not limited to the configuration in which the inner plugs 30 and 30 ′ are mounted on the mouth portion 21 of the container body 20 by the stopper, but may be mounted by screwing, for example. Further, the overcaps 50 and 50 ′ are not limited to the configuration in which the overcaps 50 and 50 ′ are attached to the inner plugs 30 and 30 ′ by screwing. Further, the slit valve 60 is not limited to the configuration in which the slit valve 60 is attached by the valve pressing member 70. For example, the slit pressing valve 70 may be fixed to the inner plug 30 using an adhesive or the like, and the valve pressing member 70 may be omitted.

1,1 ', 1 "Dispensing container with a transition stopper 20 Container body 21 Mouth 21a Locking ridge 30, 30' Middle plug 31 Mounting cylinder 31a Locking groove 31b Thin wall 31c Long hole 31d Drain hole 31e Outside Tube portion 31f Vertical rib 31g Thin wall portion 32 Lower flange portion 33 Seal tube 34 Lower peripheral wall portion 34a Male thread 34b Vertical rib 34c Locking protrusion 35 Intermediate flange portion 36 Upper peripheral wall portion (fitting peripheral wall)
36a Locking ridge 37 Upper flange portion 37a Annular seating surface 38 Top wall 39, 39 'Extraction tube 39a Reduced diameter portion 40, 40', 40 "Transition plug 41 Sealing pin (sealing portion)
41a Tip part 42, 42 'Top wall part 42a Outer peripheral part 42b Inner peripheral part 42c Circumferential groove 43, 43' Cylindrical wall part 43a, 43a 'Locking protrusion 43b Protrusion 44, 44' Flange part 45 Breaking part 46 Sealing tube 46a Locking ridge 46a1 Top surface of locking ridge 46b Notch 46b1 Bottom surface of notch 47 Sealing tube (sealing part)
50, 50 'Overcap 51, 51' Ceiling wall part 51a Through hole 52 Annular outer wall part 53 Screw cylinder 53a Female thread 53b Vertical rib 54, 54 'Annular inner wall part 54a, 54a' Locking protrusion 54a1 Locking protrusion upper surface 60 Slit valve 61 Slit 62 Elastic wall 63 Annular wall 64 Flange 70 Valve pressing member 71 Annular ring 71a Locking protrusion 72 Cylindrical wall V Notch of outer cylinder part O Axis line

Claims (4)

A bottle body having a mouth part, a body part and a bottom part, and a container main body for storing contents therein, an inner stopper attached to the mouth part of the container main body, and for discharging the contents from a dispensing tube, A transition plug having a sealing portion that seals the inside and the outside of the dispensing tube, and an overcap provided detachably on the inner plug,
The transition plug has a cylindrical wall portion connected to the sealing portion, and a sealing tube connected to the cylindrical wall portion via a planned fracture portion, and via a locking protrusion formed on the sealing tube. And by fitting over the undercut to the fitting peripheral wall formed in the inner plug,
When the overcap is attached to the inner plug in a state where the sealing tube is fitted to the inner plug, the cylindrical wall portion is fitted to the overcap by getting over an undercut,
The breakable portion is provided with a transition plug, which breaks when the overcap is removed from the inner plug while the sealing tube is fitted to the inner plug and the cylindrical wall portion is fitted to the overcap. In the container,
The sealing tube has at least one notch formed along an upper end edge of the locking protrusion, and a shape of a portion of the locking protrusion located below the notch is the locking protrusion. The dispensing container with a transition plug is characterized in that the fitting strength between the locking protrusion and the fitting peripheral wall is increased by being different from the shape of the remaining portion of the stripe.   2. The pouring container with a transition plug according to claim 1, wherein an upper surface of a portion located below the notch in the locking protrusion is inclined horizontally or upward toward the radially inner side.   The extraction container with a transition plug according to claim 1 or 2, wherein the notches are a pair of notches disposed at two positions facing each other. The overcap is a ceiling wall part having a through hole in the center, an annular inner wall part suspended from the peripheral part of the through hole, and a locking protrusion formed on the inner peripheral surface of the annular inner wall part, And is fitted to the tubular wall portion of the transition plug through the undercut via the locking protrusion of the annular inner wall portion,
The pouring container with a transition plug according to any one of claims 1 to 3, wherein an upper surface of the locking protrusion on the annular inner wall portion is inclined horizontally or upward toward the radially inner side.

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