JP2015006917A - Squeeze pouring vessel with shift plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a squeeze pouring vessel with a shift plug, which can prevent a slit of a slit valve from being fixed by drying and solidification of a liquid adhering in disuse, when the slit valve is provided on a base end side of a pouring cylinder.SOLUTION: A slit valve 30, which is configured by forming a slit 31 in a central part of an elastic wall 32, is provided on a base end side of a pouring cylinder 29. A shift plug 60 is provided with a sealing pin 61 that is inserted into the pouring cylinder 29 and elongated downward and that seals the pouring cylinder 29. The sealing pin 61 makes the elastic wall 32 of the slit valve 30 pushed in attachment of an over-cap 70 to keep the slit 31 in an open state.

Description

  The present invention is a container main body having a squeezable body, an inner stopper attached to the mouth and neck of the container main body, and for pouring out the liquid in the container main body from the dispensing cylinder when squeezing the body. The overcap that is detachably attached to the inner plug, the inner cap and the overcap, and the breakage of the planned breakage portion associated with the first removal of the overcap, leaving the sealing tube and moving to the overcap side, Thereafter, regarding a squeeze dispensing container with a transition stopper, which includes a transition stopper that integrally seals the dispensing cylinder with the overcap, particularly when a slit valve is provided on the proximal end side of the dispensing cylinder, It is intended to prevent the slit of the slit valve from sticking due to drying and solidification of the liquid adhered when not in use.

  Conventionally, what is described, for example in patent document 1 is known as a pouring container with a transition stopper. In Patent Document 1, a pouring tube is erected on the top wall portion of the inner plug so that liquid can be poured only by tilting the container.

JP 2012-46209 A

  In order to use a dispensing container as described in Patent Document 1 as a squeeze-type container that dispenses liquid by squeeze (that is, elastic squeezing), a slit valve is provided on the proximal end side of the dispensing cylinder. Can be considered.

  However, when such a slit valve is provided, there is a possibility that the slit of the slit valve may be fixed due to drying and solidification of the liquid adhered when not in use.

  The present invention has been developed in view of the above-described situation, and when a slit valve is provided on the proximal end side of the dispensing cylinder, the slit of the slit valve is fixed by the drying and solidification of the liquid adhered when not in use. An object is to provide a squeeze dispensing container with a transition stopper that can be prevented.

That is, the gist configuration of the present invention is as follows.
1. A container main body having a squeezable body, an inner plug attached to the mouth and neck of the container main body, and for discharging the liquid in the container main body from the dispensing cylinder when squeezing the body, and the inner plug An overcap that is detachably attached to the inner cap and the overcap, and the breakage of the portion to be broken due to the initial removal of the overcap leaves the sealing cap and moves to the overcap side. Then, in a squeeze dispensing container with a transition plug, comprising a transition stopper that seals the dispensing cylinder together with the overcap,
A slit valve formed by forming a slit in the central part of the elastic wall on the base end side of the dispensing tube,
The transition plug has a sealing pin that is inserted into the dispensing tube and extends downward and seals the dispensing tube,
The squeeze dispensing container with a transition stopper, wherein the sealing pin keeps the slit open by pressing the elastic wall of the slit valve when the overcap is attached.

2. The inner plug has a locking peripheral wall for locking the sealing tube,
The transition plug has a cylindrical wall portion connected to the sealing cylinder via the planned fracture portion and connected to the sealing pin.
An annular seating surface is provided around one of the upper end edge of the locking peripheral wall and the lower end edge of the cylindrical wall portion, and the other of the upper end edge of the locking peripheral wall and the lower end edge of the cylindrical wall portion. The squeeze dispensing container with a transition plug according to 1 above, wherein a protrusion that contacts the seating surface is provided around.

3. Said 2 processus | protrusion is a squeeze extraction container with said 2 transition plugs which is a pair of protrusion which makes | forms a semicircular arc shape.

  According to the present invention, not only can the sealing tube be sealed by inserting the sealing pin of the transition plug into the dispensing tube by attaching the overcap, but the slit can be opened by pressing the elastic wall of the slit valve. Therefore, it is possible to prevent the slits of the slit valve from sticking due to drying and solidification of the liquid adhered when not in use. Therefore, according to the present invention, when the slit valve is provided on the proximal end side of the dispensing cylinder, the transition plug that can prevent the slit of the slit valve from sticking due to drying and solidification of the liquid adhered when not in use A squeeze squeeze dispensing container can be provided.

It is a partial cross section side view which shows the squeeze extraction container with a transition stopper concerning one Embodiment of this invention in a closed state. It is a partial cross section side view which shows the squeeze pouring container with a transition stopper shown in FIG. 1 in an open state. It is a top view of the inside stopper assembly of the squeeze dispensing container with a transition stopper shown in FIG. It is sectional drawing which shows the use condition of the squeeze extraction container with a transition stopper shown in FIG. It is a partial cross section side view of the squeeze pouring container with a transition stopper concerning other embodiments of the present invention, and shows the state at the time of unused. It is a side view of the transition stopper of the squeeze dispensing container with a transition stopper of FIG. It is a bottom view of the transition stopper of the squeeze dispensing container with a transition stopper of FIG. The middle stopper of the squeeze extraction container with a transition stopper of FIG. 5 is shown, (a) is a top view, (b) is a partial perspective view of (a). It is a partial cross section side view of the squeeze pouring container with a transition stopper of FIG. 5, and shows a state where the overcap is removed at the start of use. It is a longitudinal cross-sectional view of the squeeze extraction container with a transition stopper of FIG. 5, and shows the state at the time of extraction.

Hereinafter, the squeeze dispensing container with a transition plug according to an embodiment of the present invention will be described in detail with reference to FIGS.
As shown in FIG. 1, the inner plug assembly 1 includes an inner plug 20, a slit valve 30, and a valve pressing member 40. Further, the inner plug assembly 1, the container body 50, the transition plug 60, and the overcap 70 constitute a squeeze dispensing container 100 with a transition plug. The squeeze dispensing container 100 is capable of dispensing the liquid in the container body 50 when the body (not shown) of the container body 50 is squeezed. As the liquid, for example, a liquid for food with low viscosity such as soy sauce or dressing is used, but is not limited thereto.

  In the present specification, the vertical direction is based on the state in which the squeeze dispensing container 100 is erected, and coincides with the vertical direction in FIG.

  The inner plug 20 has a mounting cylinder portion 21 attached to the mouth / neck portion 51 of the container body 50 at the base end portion thereof. On the inner peripheral surface of the mounting cylinder portion 21, the outer peripheral surface of the mouth neck portion 51 of the container body 50 is engaged with a plurality of protrusions 51 b arranged around the axis O so as to be attached to the mouth neck portion 51. A plurality of anti-rotation protrusions 21 h that prevent the rotation of the cylindrical portion 21 are provided. The plurality of protrusions 21h are also arranged around the axis O with a space therebetween. Further, a locking groove 21a that is locked on the inner peripheral surface of the mounting cylinder portion 21 by a locking protrusion 51a that is provided around the outer peripheral surface of the mouth / neck portion 51 of the container body 50 so as to be prevented from coming off when getting over. Is installed around.

  In addition, a thin wall portion 21b is provided around the mounting cylinder portion 21 along the locking groove 21a. The thin-walled portion 21b is broken when the inner plug assembly 1 is removed from the container main body 50 when the squeeze dispensing container 100 is separated and discarded. More specifically, as shown in FIG. 3, the thin-walled portion 21b is provided with a long hole 21c extending in the circumferential direction serving as a base point of fracture. Reference numeral 21d denotes a drain hole, for example, for draining cooling shower water that is performed after the contents are hot-filled downward.

  On the outer peripheral side of the thin portion 21b, an outer cylinder portion 21e that is removed by breaking the thin portion 21b is continuously provided. A plurality of anti-slip vertical ribs 21f are formed at intervals in a region above the long hole 21c on the inner surface of the outer cylindrical portion 21e. Further, at one end in the circumferential direction of the long hole 21c, the outer cylinder portion 21e has a substantially V-shaped cutout V in the upper portion of the thin portion 21b, and the lower portion of the thin portion 21b extends in the vertical direction. The existing thin-walled portion 21g. Accordingly, a finger is inserted from the side of the thin portion 21g toward the long hole 21c, the thin portion 21g is broken, a portion provided with a plurality of anti-slip vertical ribs 21f is picked and pulled, and the thin portion 21b The outer cylinder portion 21e can be removed from the mounting cylinder portion 21 by breaking the portion in the circumferential direction.

  As shown in FIG. 1, a lower flange portion 22 extends to the inner peripheral side at the upper end of the mounting cylinder portion 21. The lower flange portion 22 is provided with a seal cylinder 23 that is in liquid-tight contact with the inner peripheral surface of the mouth / neck portion 51 of the container body 50. A lower peripheral wall portion 24 is erected on the inner peripheral edge of the lower flange portion 22, and a male screw 24 a is formed on the outer peripheral surface of the lower peripheral wall portion 24. A plurality of vertical ribs 24 b are arranged at equal intervals in the circumferential direction on the inner peripheral surface of the lower peripheral wall portion 24. Each vertical rib 24 b has a locking projection 24 c for locking the valve pressing member 40.

  At the upper end of the lower peripheral wall portion 24, an intermediate flange portion 25 is extended to the inner peripheral side. An upper peripheral wall portion 26 is erected on the inner peripheral edge of the intermediate flange portion 25. A locking protrusion 26 a for locking the transition plug 60 is provided around the outer peripheral surface of the upper peripheral wall portion 26. At the upper end of the upper peripheral wall portion 26, an upper flange portion 27 is extended to the inner peripheral side. A frustoconical top wall 28 is connected to the inner peripheral edge of the upper flange portion 27, and a dispensing cylinder 29 is erected on the inner peripheral edge of the top wall 28.

  The dispensing tube 29 has a spout 29a at the tip. On the inner peripheral surface of the dispensing cylinder 29, a region connected to the dispensing outlet 29 a is a straight portion 29 b having a constant cross section along the axis O of the dispensing cylinder 29. A reduced diameter portion 29 c is formed in a region below the straight portion 29 b on the inner peripheral surface of the dispensing tube 29. Further, the angle θ formed by the distal end surface 29d of the dispensing tube 29 and the straight portion 29b is 90 degrees. The angle θ is not necessarily that liquid is poured out in the direction along the axis O of the dispensing cylinder 29 at the spout 29 a during squeezing, but the liquid dispensing direction is along the axis O of the dispensing cylinder 29. In order to avoid the occurrence of the so-called blow-off phenomenon at the time of liquid pouring, which is deviated from the direction or changes in the pouring direction for each squeeze, the strength of the tip surface 29d is ensured. From the viewpoint of suppressing deformation at the time of contact with an article or the like, the angle is preferably 60 to 90 degrees, more preferably 80 to 90 degrees, and still more preferably 90 degrees.

  A slit valve 30 is attached to the proximal end side of the dispensing tube 29. In this example, the slit valve 30 includes a disk-shaped elastic wall 32 having a cross-shaped slit 31 formed at the center, an annular wall 33 suspended from the outer peripheral edge of the elastic wall 32, and a lower end of the annular wall 33. It consists of a flange 34 extending from the edge to the outer peripheral side.

  The slit valve 30 is configured such that when a low-viscosity liquid is stored in the container main body 50, the liquid in the container main body 50 is not poured out (leaked) only by tilting the container main body 50, and the container main body 50 During the squeeze, the liquid in the container body 50 is formed so as not to jump out at a stretch (so as to suppress the liquid pouring force in the container body 50).

  The valve pressing member 40 includes an annular ring 41 and a cylindrical wall 42 erected on the inner peripheral edge of the annular ring 41. On the outer peripheral surface of the annular ring 41, a locking protrusion 41 a that locks the locking protrusions 24 c formed on the plurality of vertical ribs 24 b of the inner plug 20 described above so as to be able to get over and from the bottom is provided. ing. By locking the locking protrusion 41a to the locking protrusion 24c on the inner plug 20 side, the upper surface 41b of the annular ring 41 of the valve pressing member 40 comes into contact with the lower surface 34a of the flange 34 of the slit valve 30, and the slit valve The upper surface 34 b of the flange 34 of the 30 is in contact with the lower surface 27 a of the upper flange portion 27 of the inner plug 20, and the slit valve 30 is fixed to the inner plug 20 by the valve pressing member 40.

  Further, the dispensing tube 29 is sealed with a transition plug 60 at the reduced diameter portion 29c. Specifically, the transition plug 60 has a sealing pin 61 that is inserted from the spout 29 a and extends downward, and the outer peripheral surface of the sealing pin 61 is liquid-tightly contacted with the reduced diameter portion 29 c of the extraction tube 29. It touches. The distal end portion 61 a of the sealing pin 61 presses the elastic wall 32 of the slit valve 30 to keep the slit 31 slightly open. The distal end portion of the sealing pin 61 is solid, and the proximal end portion is hollow.

  A flange-like top wall portion 62 extends to the outer peripheral side at the base end portion of the sealing pin 61. The top wall portion 62 is formed such that the outer peripheral side portion 62a has a larger vertical width than the inner peripheral side portion 62b. A circumferential groove 62 c is provided on the upper surface of the outer peripheral side portion 62 a of the top wall 62. The circumferential groove 62c is divided into a plurality in the circumferential direction by a plurality of vertical walls (not shown) arranged uniformly in the circumferential direction.

  A locking protrusion 62 d for locking to the overcap 70 is provided around the outer peripheral edge of the top wall 62. In addition, a cylindrical wall portion 63 is suspended from the outer peripheral edge of the top wall portion 62. A flange portion 64 is extended to the outer peripheral side at the lower end edge of the cylindrical wall portion 63. A sealing tube 66 is connected to the outer peripheral edge of the flange portion 64 via a planned break portion 65. On the inner peripheral surface side of the lower end edge of the sealing tube 66, there is a locking ridge 66a that locks against the locking ridge 26a formed on the outer peripheral surface of the above-described upper peripheral wall portion 26 so that it can be prevented from getting over. It is installed.

  The overcap 70 is suspended from the ceiling wall portion 71 on the inner peripheral side of the annular outer wall portion 72, a disc-shaped ceiling wall portion 71, an annular outer wall portion 72 suspended from the outer peripheral edge of the ceiling wall portion 71. And an annular inner wall portion 74 that is suspended from the ceiling wall portion 71 on the inner peripheral side of the screw tube 73. On the inner peripheral surface of the screw cylinder 73, a female screw 73a attached to the male screw 24a formed on the outer peripheral surface of the lower peripheral wall portion 24 of the inner plug 20 is formed. A plurality of reinforcing vertical ribs 73 b are formed on the outer peripheral surface of the screw cylinder 73 so as to be evenly arranged in the circumferential direction. When the screw cylinder 73 is attached, the lower end edge of the screw cylinder 73 is in contact with the upper surface of the lower flange portion 22 of the inner plug 20.

  An uneven portion mechanism for preventing cap loosening may be provided between the female screw 73a of the screw cylinder 73 of the overcap 70 and the male screw 24a of the inner plug 20. For example, a convex portion or a concave portion (not shown) can be formed at the peak portion of the female screw 73a of the overcap 70, and a vertical rib (not shown) can be formed at a position below the male screw 24a of the inner plug 20. It is preferable to provide such irregularities and vertical ribs at a position near the end of the cap tightening, but by doing so, when the cap is finished tightening, the vertical ribs get over the irregularities and are clicked A feeling can also be imparted. Furthermore, if the screw cylinder 73 part corresponding to the convex part and the concave part provided in the female screw 73a is made thin, it becomes a structure that is easily bent, and the cap can be more advantageously prevented from loosening.

  On the inner peripheral side of the lower end edge of the annular inner wall portion 74, a locking protrusion that locks the locking protrusion 62 d formed on the outer peripheral edge of the ceiling wall portion 62 of the transition plug 60 described above so as to be able to get over and slip off. An article 74a is provided around. The center of the ceiling wall portion 71 is slightly bent downward.

  The assembly procedure of the squeeze dispensing container 100 having such a configuration is as follows. First, the slit valve 30 is attached to the inner plug 20 with the valve pressing member 40. Next, the transition plug 60 is attached to the inner plug 20. Then, the inner plug 20 is attached to the mouth and neck portion 51 of the container body 50 filled with the liquid as the contents by plugging. At this time, since the dispensing tube 29 of the inner plug 20 is sealed by the transition plug 60, the disadvantage that the liquid as the contents jumps out of the dispensing port 29a of the dispensing tube 29 due to the impact of the stopper is avoided. The Finally, the overcap 70 is attached.

  When the user uses the squeeze dispensing container 100 assembled and shipped in this manner, when the overcap 70 is removed for the first time, as shown in FIG. The user can confirm that the container has not been opened by the sound and feel at the time of breaking. The transition plug 60 moves to the overcap 70 side by leaving the sealing tube 66 due to the breakage of the planned breakage portion 65, and thereafter, the discharge tube 29 is sealed together with the overcap 70.

  According to such a configuration, when the overcap 70 is removed, the container body 50 is tilted, and the body portion of the container body 50 is squeezed to pour out the liquid in the container body 50, the liquid R is poured as shown in FIG. It is possible to stably pour out in the direction along the axis O of the outlet cylinder 29. As described above, the straight portion 29b having a constant cross section is provided on the inner peripheral surface of the pouring tube 29 along the axis O of the pouring tube 29, and the tip surface 29d and the straight portion 29b of the pouring tube 29 are provided. This is because the angle θ formed by is set to 90 degrees or less. By doing so, at the time of squeezing, the liquid R can be rectified by the straight portion 29b along the axial direction O of the dispensing cylinder 29 and poured out as it is.

  Further, when the dispensing cylinder 29 is sealed with the overcap 70 when not in use, the reduced diameter portion 29c for sealing is provided in the lower region of the straight portion 29b. At the time of liquid pouring, the liquid R can be rectified along the axial direction O of the pouring cylinder 29 by the straight portion 29b after passing through the reduced diameter portion 29c. Therefore, it is possible to achieve both reliable sealing of the dispensing cylinder 29 and stable dispensing of the liquid R.

  Furthermore, as shown in FIG. 1, when the overcap 70 is attached, the sealing pin 61 presses the elastic wall 32 of the slit valve 30 to keep the slit 31 slightly open. The liquid adhered to the slit 31 during use is fixed by drying and solidifying, and the flow of the liquid R toward the dispensing cylinder 29 is not disturbed when the liquid is dispensed. Therefore, the liquid R can be stably poured out in the direction along the axis O of the dispensing cylinder 29.

  Next, a squeeze dispensing container with a transition plug according to another embodiment of the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 5, the squeeze dispensing container 100 ′ with a transition plug according to the present embodiment includes a container main body 120, an inner plug 130, a transition plug 140, and an overcap 150. The container main body 120 has a bottle shape having a mouth-and-neck part 121, a body part (not shown), and a bottom part (not shown), and contains contents therein.

  The inner stopper 130 has a slit valve 160 and a valve pressing member 170, and the dispensing container 100 'can dispense the contents in the container body 120 when the body portion of the container body 120 is squeezed. 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. 5 and 8, the inner plug 130 has a mounting cylinder part 131 attached to the mouth-neck part 121 of the container main body 120 at the base end part thereof. On the inner peripheral surface of the mounting cylinder 131, the outer peripheral surface of the mouth / neck portion 121 of the container body 120 is engaged with a plurality of protrusions 121 b arranged around the axis O, and attached to the mouth / neck portion 121. A plurality of anti-rotation protrusions 131 h that prevent the rotation of the cylindrical portion 131 are provided. The plurality of protrusions 131h are also arranged around the axis O with a space therebetween. In addition, a locking groove 131a is provided on the inner peripheral surface of the mounting cylinder portion 131 so as to be locked so as to be prevented from coming off by getting on a locking protrusion 121a provided around the outer peripheral surface of the mouth neck portion 121 of the container body 120. Is installed around. That is, the inner plug 130 is locked to the mouth-and-neck portion 121 of the container body 120 by getting over the undercut (that is, the locking protrusion 121a and the locking groove 131a).

  In addition, a thin portion 131b is provided around the mounting cylinder 131 along the locking groove 131a. The thin-walled portion 131b is broken when the inner stopper 130 is removed from the container main body 120 when the dispensing container 100 'is disposed and discarded. More specifically, the thin-walled portion 131b is circumferentially provided with a long hole 131c extending in the circumferential direction serving as a base point of fracture. Reference numeral 131d denotes a drain hole, for example, for draining cooling shower water that is performed after the contents are hot-filled downward.

  On the outer peripheral side of the thin portion 131b, an outer cylinder portion 131e that is removed by breaking the thin portion 131b is connected. A plurality of anti-slip vertical ribs 131f are formed at intervals in a region above the long hole 131c on the inner surface of the outer cylindrical portion 131e. Further, at one end in the circumferential direction of the long hole 131c, the outer cylinder 131e has an approximately V-shaped cutout V in the upper portion of the thin portion 131b, and the lower portion of the thin portion 131b extends in the vertical direction. The existing thin portion 131g. Therefore, a finger is inserted from the side of the thin portion 131g toward the long hole 131c, the thin portion 131g is broken, and a portion provided with a plurality of anti-slip vertical ribs 131f is picked and pulled, and the thin portion 131b. The outer cylinder part 131e can be removed from the mounting cylinder part 131 by breaking in the circumferential direction.

  As shown in FIG. 5, the lower flange portion 132 extends to the inner peripheral side at the upper end of the mounting cylinder portion 131. On the lower flange portion 132, a seal cylinder 133 that is in liquid-tight contact with the inner peripheral surface of the mouth / neck portion 121 of the container main body 120 is suspended. A lower peripheral wall portion 134 is erected on the inner peripheral edge of the lower flange portion 132, and a male screw 134 a is formed on the outer peripheral surface of the lower peripheral wall portion 134. In addition, a plurality of vertical ribs 134 b are arranged at equal intervals in the circumferential direction on the inner peripheral surface of the lower peripheral wall portion 134. Each vertical rib 134 b has a locking projection 134 c for locking the valve pressing member 170.

  At the upper end of the lower peripheral wall portion 134, an intermediate flange portion 135 is extended to the inner peripheral side. On the inner peripheral edge of the intermediate flange portion 135, an upper peripheral wall portion 136 as a locking peripheral wall is provided upright. A locking protrusion 136 a for locking the transition plug 140 is provided around the outer peripheral surface of the upper peripheral wall portion 136. At the upper end of the upper peripheral wall portion 136, an upper flange portion 137 extends to the inner peripheral side. The upper surface of the upper flange portion 137 constitutes an annular seating surface 137a for a projection 143b provided at the lower end edge of a cylindrical wall portion 143 of the transition plug 140 described later. A frustoconical top wall 138 is connected to the inner peripheral edge of the upper flange portion 137, and a dispensing cylinder 139 is erected on the inner peripheral edge of the top wall 138.

  The extraction tube 139 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. Further, a reduced diameter portion 139a that is in liquid-tight contact with a sealing pin 141 of a transition plug 140, which will be described later, is formed on the inner peripheral surface of the dispensing cylinder 139.

  A slit valve 160 is attached to the proximal end side of the dispensing cylinder 139. In this example, the slit valve 160 includes a disk-shaped elastic wall 162 in which a cross-shaped slit 161 is formed at the center, an annular wall 163 suspended from the outer peripheral edge of the elastic wall 162, and a lower end of the annular wall 163. It consists of a flange 164 extending from the edge to the outer peripheral side.

  The slit valve 160 is configured such that when a low-viscosity liquid is stored in the container main body 120, the liquid in the container main body 120 is not poured out (leaked) only by tilting the container main body 120, and the container main body 120 During squeeze, the liquid in the container main body 120 is formed so as not to jump out at a stretch (so as to suppress the momentum of pouring the liquid in the container main body 120).

  The valve pressing member 170 includes an annular ring 171 and a cylindrical wall 172 standing on the inner peripheral edge of the annular ring 171. On the outer peripheral surface of the annular ring 171, a locking protrusion 171 a that locks the locking protrusions 134 c formed on the plurality of vertical ribs 134 b of the above-described inner plug 130 so as to be able to get over from the lower side is provided. ing. By locking the locking protrusion 171a to the locking protrusion 134c on the inner plug 130 side, the upper surface of the annular ring 171 of the valve pressing member 170 abuts on the lower surface of the flange 164 of the slit valve 160, and The upper surface of the flange 164 is in contact with the lower surface of the upper flange portion 137 of the inner plug 130, and the slit valve 160 is fixed to the inner plug 130 by the valve pressing member 170.

  In addition, the dispensing tube 139 is sealed by the transition plug 140 at the reduced diameter portion 139a. Specifically, the transition plug 140 has a sealing pin 141 as a sealing portion that seals the inside and outside of the dispensing tube 139. The sealing pin 141 is inserted from the tip of the extraction cylinder 139 and extends downward, and the outer peripheral surface of the sealing pin 141 is in liquid-tight contact with the reduced diameter portion 139a of the extraction cylinder 139. The distal end portion 141 a of the sealing pin 141 presses the elastic wall 162 of the slit valve 160 to keep the slit 161 slightly open. The distal end portion of the sealing pin 141 is solid, and the proximal end portion is hollow.

  A flange-like top wall 142 extends from the base end of the sealing pin 141 to the outer peripheral side. The top wall 142 is formed such that the outer peripheral side portion 142a has a larger vertical width than the inner peripheral side portion 142b. A circumferential groove 142 c is provided on the upper surface of the outer peripheral side portion 142 a of the top wall 142. The circumferential groove 142c is divided into a plurality in the circumferential direction by a plurality of vertical walls (not shown) arranged uniformly in the circumferential direction.

  A cylindrical wall portion 143 is vertically suspended from the outer peripheral edge of the top wall portion 142. A locking protrusion 143 a for locking to the overcap 150 is provided around the outer peripheral surface of the cylindrical wall portion 143. A protrusion 143b that abuts on the upper surface of the upper flange portion 137 of the inner plug 130, that is, the annular seat surface 137a, is provided around the lower end edge of the cylindrical wall portion 143. As shown in FIG. 7, the protrusion 143 b is configured as a pair of protrusions having a semicircular arc shape centering on the axis O of the cylindrical wall portion 143. In addition, you may provide the protrusion 143b in multiple numbers or the perimeter at intervals in the circumferential direction.

  Further, a flange portion 144 is extended to the outer peripheral side at the lower end edge of the cylindrical wall portion 143. As shown in FIGS. 5 to 7, a sealing cylinder 146 is continuously provided on the outer peripheral edge of the flange portion 144 via a planned fracture portion 145. On the inner peripheral surface side of the lower end edge of the sealing tube 146, there is a locking ridge 146a that locks against the locking ridge 136a formed on the outer peripheral surface of the above-described upper peripheral wall portion 136 so that it can be prevented from getting over. It is installed. That is, the sealing cylinder 146 is locked to the upper peripheral wall portion 136 (locking peripheral wall) by getting over the undercut (that is, the locking protrusion 136a and the locking protrusion 146a).

  As shown in FIG. 5, the overcap 150 includes a disk-shaped ceiling wall portion 151, an annular outer wall portion 152 suspended from the outer peripheral edge of the ceiling wall portion 151, and a ceiling on the inner peripheral side of the annular outer wall portion 152. A screw cylinder 153 suspended from the wall portion 151 and an annular inner wall portion 154 suspended from the ceiling wall portion 151 on the inner peripheral side of the screw tube 153 are included. A female screw 153 a attached to a male screw 134 a formed on the outer peripheral surface of the lower peripheral wall portion 134 of the inner plug 130 described above is formed on the inner peripheral surface of the screw tube 153. A plurality of reinforcing vertical ribs 153 b are formed on the outer peripheral surface of the screw cylinder 153 so as to be evenly arranged in the circumferential direction. When the screw tube 153 is attached, the lower end edge of the screw tube 153 is in contact with the upper surface of the lower flange portion 132 of the inner plug 130.

  In addition, an uneven portion mechanism for preventing cap loosening may be provided between the female screw 153a of the screw tube 153 of the overcap 150 and the male screw 134a of the inner plug 130. For example, a convex portion or a concave portion (not shown) can be formed at the peak portion of the female screw 153a of the overcap 150, and a vertical rib (not shown) can be formed below the male screw 134a of the inner plug 130. It is preferable to provide such uneven portions and vertical ribs at a position near the end of the cap tightening, but by doing so, when the overcap 150 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 153 portion corresponding to the convex portion and the concave portion provided in the female screw 153a is formed into a thin shape, the structure is easy to bend and the loosening of the overcap 150 can be more advantageously prevented.

  On the inner peripheral side of the lower end edge of the annular inner wall portion 154, a locking protrusion that locks the locking protrusion 143 a formed on the outer peripheral surface of the cylindrical wall portion 143 of the transition plug 140 described above so as to prevent getting over and over. A strip 154a is provided around. That is, when the overcap 150 is attached to the inner plug 130 in a state where the sealing cylinder 146 is locked to the inner plug 130, the cylindrical wall portion 143 undercuts the upper cap 150 (that is, the locking protrusion 143 a and the engaging rib 143 a. It is designed to be locked by getting over the stop ridge 154a). The center of the ceiling wall portion 151 has a shape that is slightly bent downward.

  According to such a configuration, the dispensing container 100 ′ can be assembled by the following process. First, as a first step, the slit valve 160 is attached to the inner plug 130 with the valve pressing member 170. Next, as a second step, the transition plug 140 is attached to the inner plug 130. That is, the sealing tube 146 of the transition plug 140 is locked to the upper peripheral wall portion 136 (locking peripheral wall) of the inner plug 130 by getting over the undercuts (locking protrusion 136a and locking protrusion 146a). At that time, the projection 143b provided around the lower end edge of the cylindrical wall portion 143 of the transition plug 140 is brought into contact with the annular seating surface 137a provided around the upper end edge of the upper peripheral wall portion 136 (locking peripheral wall) of the inner plug 130. By contacting, the action of the load on the planned fracture portion 145 can be suppressed and the planned fracture portion 145 can be prevented from breaking.

  Next, as a third step, the overcap 150 is attached to the transition plug 140 and the inner plug 130. That is, in a state where the sealing tube 146 is locked to the inner plug 130, the overcap 150 is attached to the inner plug 130, and the tube wall portion 143 is undercut into the overcap 150 (the locking protrusion 143a and the locking protrusion 154a). ). Also at this time, the projection 143b of the transition plug 140 abuts against the seating surface 137a of the inner plug 130, so that the action of the load on the planned fracture portion 145 is suppressed, and the occurrence of the fracture of the planned fracture portion 145 is prevented. .

  In the present embodiment, the protrusion 143b provided on the lower end edge of the cylindrical wall portion 143 of the transition plug 140 is formed as a pair of protrusions 143b having a semicircular arc shape centering on the axis O of the cylindrical wall portion 143. In this third step, whether or not the space between the sealing pin 141 of the transition plug 140 and the reduced diameter portion 139a of the extraction tube 139 of the inner plug 130 is properly sealed after the overcap 150 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 139 to check whether air has leaked to the upper side (leading end side) of the dispensing cylinder 139. However, if appropriate sealing is not performed, air can be leaked through a gap between the pair of protrusions 143b. Note that the gap between the lower end edge of the cylindrical wall portion 143 of the transition plug 140 and the seating surface 137a is made as small as possible to alleviate the impact in each assembling process of the dispensing container 100 ′, and the transition plug 140 It is preferable for preventing breakage of the planned breakage portion 145.

  Finally, as a fourth step, the inner plug 130 to which the transition plug 140 and the overcap 150 are attached is attached to the mouth and neck portion 121 of the container body 120 filled with the contents. That is, the inner plug 130 to which the transition plug 140 and the overcap 150 are attached is locked to the mouth neck portion 121 of the container main body 120 by getting over the undercut (the locking protrusion 121a and the locking groove 131a). Also at this time, the protrusion 143b of the transition plug 140 abuts against the seating surface 137a of the inner plug 130, the action of the load on the planned fracture portion 145 is suppressed, and the occurrence of the fracture of the planned fracture portion 145 is prevented. Can do.

  When the user uses the squeeze dispensing container 100 ′ with a transition plug assembled and shipped in this way, when the overcap 150 is removed for the first time, the transition plug 140 is to be broken 145 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 the break. The transition plug 140 moves to the overcap 150 side while leaving the sealing tube 146 due to the breakage of the planned breakage portion 145, and thereafter, the discharge tube 139 is sealed together with the overcap 150.

  Then, as shown in FIG. 10, when the container body 120 is tilted and the body portion of the container body 120 is squeezed, the slit 161 of the slit valve 160 is opened, and the contents in the container body 120 are poured out through the dispensing cylinder 139. be able to.

  Further, as shown in FIG. 5, when the overcap 150 is attached, the sealing pin 141 presses the elastic wall 162 of the slit valve 160 to keep the slit 161 slightly open. During use, the slit 161 is prevented from being fixed due to drying and solidification of the attached contents.

  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 described with reference to FIGS. 1 to 4, it has been described that the inner plug 20 can be mounted by a stopper and has the outer cylinder portion 21 e for separation and disposal. The inner plug 20 may be attached to the mouth / neck portion 51 of the container body 50 with screws. The slit valve 30 has been described as being attached by the valve pressing member 40. Instead, the slit valve 30 is fixed to the inner plug 20 with, for example, an adhesive, and the valve pressing member 40 is omitted. Also good.

  In the embodiment described with reference to FIGS. 5 to 10, an annular seat surface 137 a is provided on the upper end edge of the upper peripheral wall portion 136 (locking peripheral wall) of the inner plug 130, and the cylindrical wall portion 143 of the transition plug 140 is provided. However, instead of this, the arrangement of the seating surface 137a and the projection 143b may be reversed. In other words, an annular seating surface is provided at the lower end edge of the cylindrical wall portion 143 of the transition plug 140, and a protrusion (preferably abutting against the annular seating surface is provided at the upper end edge of the upper peripheral wall portion 136 (locking peripheral wall) of the inner plug 130. Can be provided with a pair of protrusions having a semicircular arc shape centering on the axis O of the inner plug 130. Moreover, although the inside plug 130 was demonstrated as what has the outer cylinder part 131e for classification disposal, it does not necessarily need to be set as the structure which has such an outer cylinder part 131e. Further, the slit valve 160 has been described as being attached by the valve pressing member 170, but instead, the slit valve 160 is fixed to the inner plug 130 with, for example, an adhesive, and the valve pressing member 170 is omitted. Also good.

DESCRIPTION OF SYMBOLS 1 Inner plug assembly 20 Inner plug 21 Installation cylinder part 21a Locking groove 21b Thin wall part 21c Long hole 21d Drain hole 21e Outer cylinder part 21f Vertical rib 21g Thin wall part 21h Protrusion 22 Lower flange part 23 Seal cylinder 24 Lower peripheral wall Portion 24a Male thread 24b Vertical rib 24c Locking protrusion 25 Middle flange portion 26 Upper peripheral wall portion 26a Locking protrusion 27 Upper flange portion 27a Lower surface 28 Top wall 29 Outlet tube 29a Outlet 29b Straight portion 29c Reduced diameter portion 29d Tip surface 30 Slit valve 31 Slit 32 Elastic wall 33 Annular wall 34 Flange 34a Lower surface 34b Upper surface 40 Valve pressing member 41 Annular ring 41a Locking ridge 41b Upper surface 42 Tube wall 50 Container body 51 Mouth neck 51a Locking ridge 51b Projection 60 Transition plug 61 Sealing Pin 61a Tip 62 Ceiling Wall 62a Outer Side Portion 62b Inner peripheral portion 62c Circumferential groove 62d Locking protrusion 63 Cylinder wall portion 64 Flange portion 65 Breaking portion 66 Sealing tube 66a Locking protrusion 70 Overcap 71 Ceiling wall portion 72 Annular outer wall portion 73 Screw tube 73a Female screw 73b Vertical rib 74 Annular inner wall 74a Locking ridge 100 Squeeze dispensing container with transition plug 100 'Squeeze dispensing container with transition plug 120 Container body 121 Mouth and neck portion 121a Locking protrusion 121b Protrusion 130 Middle plug 131 Mounting cylinder 131a Locking groove 131b Thin wall part 131c Long hole 131d Drain hole 131e Outer cylinder part 131f Vertical rib 131g Thin wall part 131h Projection 132 Lower flange part 133 Seal cylinder 134 Lower peripheral wall part 134a Male thread 134b Vertical rib 134c Locking protrusion 135 Intermediate flange Part 136 Upper peripheral wall (locking peripheral wall)
136a Locking ridge 137 Upper flange portion 137a Annular seating surface 138 Top wall 139 Outlet tube 139a Reduced diameter portion 140 Transition plug 141 Sealing pin (sealing portion)
141a Tip part 142 Top wall part 142a Outer peripheral part 142b Inner peripheral part 142c Circumferential groove 143 Tube wall part 143a Locking protrusion 143b Protrusion (a pair of semicircular arc-shaped protrusions)
144 Flange portion 145 Expected break portion 146 Sealing tube 146a Locking protrusion 150 Overcap 151 Ceiling wall portion 152 Annular outer wall portion 153 Screw tube 153a Female screw 153b Vertical rib 154 Annular inner wall portion 154a Locking protrusion 160 Slit valve 161 Elastic slit 162 Wall 163 Annular wall 164 Flange 170 Valve pressing member 171 Annular ring 171a Locking protrusion 172 Cylindrical wall V Notch O Axis θ Angle formed by tip surface and straight portion R Liquid

Claims (3)

A container main body having a squeezable body, an inner plug attached to the mouth and neck of the container main body, and for discharging the liquid in the container main body from the dispensing cylinder when squeezing the body, and the inner plug An overcap that is detachably attached to the inner cap and the overcap, and the breakage of the portion to be broken due to the initial removal of the overcap leaves the sealing cap and moves to the overcap side. Then, in a squeeze dispensing container with a transition plug, comprising a transition stopper that seals the dispensing cylinder together with the overcap,
A slit valve formed by forming a slit in the central part of the elastic wall on the base end side of the dispensing tube,
The transition plug has a sealing pin that is inserted into the dispensing tube and extends downward and seals the dispensing tube,
The squeeze dispensing container with a transition stopper, wherein the sealing pin keeps the slit open by pressing the elastic wall of the slit valve when the overcap is attached. The inner plug has a locking peripheral wall for locking the sealing tube,
The transition plug has a cylindrical wall portion connected to the sealing cylinder via the planned fracture portion and connected to the sealing pin.
An annular seating surface is provided around one of the upper end edge of the locking peripheral wall and the lower end edge of the cylindrical wall portion, and the other of the upper end edge of the locking peripheral wall and the lower end edge of the cylindrical wall portion. The squeeze dispensing container with a transition plug according to claim 1, wherein a protrusion that contacts the seating surface is provided around the squeeze dispensing container.   The squeeze dispensing container with a transition plug according to claim 2, wherein the protrusions are a pair of ridges having a semicircular arc shape.

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