JP4608951B2 - Plastic spigot with tamper-evident prevention function - Google Patents

Description

  The present invention relates to a plastic stopper that covers a spout part of a container such as a glass bottle or a plastic bottle, and relates to a plastic stopper with an unauthorized opening preventing function for protecting the contents in the container from unauthorized opening.

  In general, a plastic spigot with a tamper-evident prevention function is provided with a container outlet portion with a pull-open type pull ring having a cap A and an opening pull ring that is covered and sealed by the cap A, or a container outlet without a pull ring. It consists of an outlet part, and the cap and the container outlet part have a predetermined opening prevention structure, and the cap can be screwed onto the outlet part to be closed and sealed. The structure cannot be restored to the original closed state, and is used for imparting the unopened (virgin) property of the container.

  For example, as shown in the side views of FIGS. 5 (a) to 5 (c), as the cap A of the plastic stopper with an unauthorized opening preventing function, a knurl 2b is engraved on the circumferential surface and in the direction of the bus bar. A cylindrical portion 2, a screw portion (not shown) provided on the inner periphery of the cylindrical portion 2, and a half-cut line 3 provided on the lower end portion of the cylindrical portion 2 as necessary. A thin ring-shaped band-shaped band part 4 connected to each other, and a notch part 6 as an easily breakable part for easily breaking the ring-shaped band part 4 provided in a part of the ring-shaped band part 4 in the generatrix direction, A plurality of locking plates (not shown) are provided so as to be bent from a substantially horizontal direction to a standing direction toward the inner center of the ring via a hinge line along the lower inner peripheral edge of the band portion 4. There are various types of plastic caps A with a tamper-evident prevention function.

  By the way, the above-described plastic cap A with an unauthorized opening preventing function has a ring-shaped band portion while screwing the screw portion of the cap cylindrical portion 2 to the screw portion provided on the outer periphery of the spout portion of a container such as a plastic bottle. 4 is fitted and attached to a convex part provided in a ring shape on the outer periphery of the spout part, and at that time, a plurality of horizontal latches extended to the inner periphery of the lower end of the band part 4 The plate gets over the convex part provided in a ring shape on the outer periphery of the spout part of the container and is bent in the standing direction, and the front end part of the locking plate engages the lower part of the outer peripheral convex part of the spout part The cap A is locked and closed so as not to be detached from the container spout portion.

  Then, when the cylindrical part 2 of the cap A screwed to the container outlet part is rotated in the opening direction, both the cylindrical part 2 and the ring-shaped band part 4 gradually pivot and move in the upper end direction of the container outlet part, The locking plate of the band portion that is engaged with the lower portion of the convex portion on the outer periphery of the spout portion of the container is subjected to a stress in the horizontal posture direction that expands the diameter of the band portion. In addition, the tension due to the expansion is applied, and the band part 4 is eventually broken from the notch part 6 so that the tampering can be detected.

  The cap A shown in FIG. 5A is provided with a notch portion 6 having a connecting portion 6 a in the ring-shaped band portion 4, and the cap A shown in FIG. A cut-out portion 6 of a half-cut type without any connecting portion 6a in any of the vertical directions is provided in a part of the cap A, and the cap A shown in FIG. A notch 6 is provided.

The container spout B that is covered and sealed by the cap A as described above is generally made of a pull-open type plastic having a pull ring 25 for opening as shown in FIGS. There are a spout part B with a pull ring and a spout part (not shown) without a pull ring 25, and the spout part B with a pull ring provides sealing performance and unopenability (virginity) of a container. Used for.

  As shown in the side sectional view of FIG. 6A and the plan view of FIG. 6B, the general pull-open type spout portion B with a pull ring is, for example, a rectangular tubular liquid paper container 30 (liquid packaging paper). A cylindrical portion 21, a closing plate 22 that seals the inside of the cylindrical portion 21, and a pull ring portion for opening provided on the closing plate 22 via a ring-shaped half-cut portion 23. 25, and the pull ring portion 25 is attached to a support column 24 erected in the region of the ring-shaped half cut portion 23. A flange portion 26 is provided on the outer periphery of the lower end portion of the cylindrical portion 21 of the spout portion B so as to be aligned with the mounting hole portion 31 provided in the container 30.

  And when opening the said spout part B with a pull open type pull ring, a finger is inserted in the ring of the pull ring 25 shown to Fig.6 (a), and it shows to Fig.6 (a)-(b) Thus, by pulling up the pull ring 25 and the support column 24 in the direction of the solid arrow I along the formation direction of the ring-shaped half cut unit 23, the closing plate 22 connected to the support column 4 from the half cut unit 23 in the vicinity of the support column 4 Then, as shown by the dotted arrow Ia, the entire cut portion 23 is cut along the half cut portion 23, the closing plate 22 is cut off, and the container 30 is opened.

  Examples of the technology related to the cap A of the plastic stopper with the unauthorized opening preventing function include, for example, Japanese Utility Model Publication No. 46-24149, Japanese Utility Model Publication No. 46-24151, USP. No. No. 4,550,844, JP-A-8-48350, JP-A-8-91401, JP-A-10-218211, and the like.

  Moreover, as a technique regarding the said pull open type spout part B with a pull ring, there exist Unexamined-Japanese-Patent No. 6-24459, Japanese Utility Model Laid-Open No. 5-72755, and the like.

The known patent documents are described below.
JP-A-6-24459 Utility Kaihei 5-72755 Japanese Utility Model Publication No. 46-24149 Japanese Utility Model Publication No. 46-24151 USP. No. No. 4550844 JP-A-8-48350 JP-A-8-91401 JP-A-10-218211

An object of the present invention is to provide a plastic spigot with a tamper-resistant function that is closed by the cap A and a spout opening B with a pull open type pull ring, and is screwed onto the container spout B. Only the cylindrical part 2 of the cap A with the lid closed is rotated in the opening direction to separate the cylindrical part 2 and the ring-shaped band part 4 through the half-cut part 3, and the ring-shaped band part 4 is separated from the notch part 6 (or Sealing in the covered state by the cap A and the spout part B with a pull ring after the ring-shaped band part 4 is removed from the container spout part B by opening through the connecting part 6a) and opened. And improving the sealing performance of the cover by the cap A and the spout B with the pull ring after opening the spout B from the spout after being opened. A.

The invention according to claim 1 of the present invention includes a top portion, a cylindrical portion, a screw portion provided on the inner periphery of the cylindrical portion, and a lower end portion of the cylindrical portion connected in a ring shape via a half-cut line. A thin plate-like ring-shaped band portion having the same diameter as the cylindrical portion and having a cutout portion or a half-cut portion in the ring generatrix direction, and a connecting portion between the cylindrical portion and the ring-shaped band portion. A plurality of half-cut portions or partial connecting portions that can be easily broken, and a plurality of the ring-shaped band portions extending in a substantially horizontal direction toward the inner center of the ring of the ring-shaped band portion via a hinge at the lower end of the ring inner periphery. Cap portion provided with a single locking plate, a cylindrical portion, a closing plate for sealing the inside of the cylindrical portion, and a pull ring portion for opening provided on the closing plate via a ring-shaped half-cut portion And the locking plate rides on the outer periphery of the lower end of the cylindrical portion. And a ring-shaped protrusion to fit in tamper-resistant plastic spout consisting spout and being lidding at screwing of the cap portion, intermittently at the lower end periphery of the cylindrical portion of the spout portion And a plurality of convex portions that are inserted in the respective one of the locking plates in between, and the ring-shaped band portion at the lower end thereof is non-rotated with respect to the cap portion that rotates spirally when the cap is opened. provided, downward to the lower surface of the top portion in the cap portion, the spout portion inner periphery that closely be fitted in a ring-shaped inner seal portion of the upper end of the cylindrical portion is provided with, the upper end of the cylindrical portion With a tamper-evident prevention function characterized in that a space portion is provided above the cap portion and the spout portion so as to reinforce the lid sealing property into which the upper end portion can be fitted. It is a plastic spigot.

The invention according to claim 2 of the present invention is such that the top portion, the cylindrical portion, the screw portion provided on the inner circumference of the cylindrical portion, and the lower end portion of the cylindrical portion are connected in a ring shape via a half-cut line. a thin plate-like ring-shaped band portion having a notch or the half-cut portion and the ring generatrix direction has the same diameter as the cylindrical portion that is provided along the connecting portion between the cylindrical portion and the ring-shaped band portion A plurality of half-cut portions or partial connecting portions that can be easily broken, and a plurality of the ring-shaped band portions extending in a substantially horizontal direction toward the inner center of the ring of the ring-shaped band portion via a hinge at the lower end of the ring inner periphery. Cap portion provided with a single locking plate, a cylindrical portion, a closing plate for sealing the inside of the cylindrical portion, and a pull ring portion for opening provided on the closing plate via a ring-shaped half-cut portion And the locking plate rides on the outer periphery of the lower end of the cylindrical portion. And a ring-shaped protrusion to fit in tamper-resistant plastic spout consisting spout and being lidding at screwing of the cap portion, intermittently at the lower end periphery of the cylindrical portion of the spout portion Provided with a plurality of convex portions that are respectively provided with the respective locking plates interposed therebetween, and the ring-shaped band portion at the lower end of the cap portion that rotates spirally when the cap is opened, and that does not rotate. A ring-shaped inner seal portion that can be tightly fitted to the inner periphery of the upper end portion of the cylindrical portion of the spout portion is provided downward on the lower surface of the top portion of the portion, and above the upper end portion of the cylindrical portion, A space is provided to reinforce the lid sealability in which the upper end portion of the cap portion and the spout portion can be reinserted, and the ring-shaped inner seal portion is provided with an initial application before the re-covering. Closely screwed into the inner periphery of the upper end of the cylindrical part by screwing in the lid state It is a tamper-resistant plastic spout, characterized in that the fitting.

The invention according to claim 3 of the present invention is such that the top portion, the cylindrical portion, the screw portion provided on the inner circumference of the cylindrical portion, and the lower end portion of the cylindrical portion are connected in a ring shape via a half-cut line. A thin plate-like ring-shaped band portion having the same diameter as the cylindrical portion and having a cutout portion or a half-cut portion in the ring generatrix direction, and a connecting portion between the cylindrical portion and the ring-shaped band portion. A plurality of half-cut portions or partial connecting portions that can be easily broken, and a plurality of the ring-shaped band portions extending in a substantially horizontal direction toward the inner center of the ring of the ring-shaped band portion via a hinge at the lower end of the ring inner periphery. Cap portion provided with a single locking plate, a cylindrical portion, a closing plate for sealing the inside of the cylindrical portion, and a pull ring portion for opening provided on the closing plate via a ring-shaped half-cut portion And the locking plate rides on the outer periphery of the lower end of the cylindrical portion. In a plastic stopper with a tamper-evident-preventing function comprising a ring-shaped convex part to be fitted and a spout part that is covered by screwing of the cap part, it is intermittently connected to the outer periphery of the lower end of the cylindrical part of the spout part Provided with a plurality of convex portions that are respectively provided with the respective locking plates interposed therebetween, and the ring-shaped band portion at the lower end of the cap portion that rotates spirally when the cap is opened, and that does not rotate. A ring-shaped inner seal portion that can be tightly fitted to the inner periphery of the upper end portion of the cylindrical portion of the spout portion is provided downward on the lower surface of the top portion of the portion, and above the upper end portion of the cylindrical portion, A space is provided to reinforce the lid sealability in which the upper end portion of the cap portion and the spout portion can be reinserted, and the ring-shaped inner seal portion is provided with an initial application before the re-covering. Fits on the inner periphery of the upper end of the cylindrical part by screwing in the lid state Without at screwing the lidding state at the time of re-applying a cover is tamper-resistant plastic spout, which comprises tightly fitted to the inner periphery of the upper end portion of the cylindrical portion.

As shown in FIG. 1 and FIG. 2, the plastic cap with a tamper-evident preventing function according to claim 1 of the present invention has a cap portion A along the connecting portion between the cylindrical portion 2 and the ring-shaped band portion 4. An easily breakable half-cut portion or partial connecting portion 3 is provided, and the ring-shaped band portion 4 has a ring inner band at its lower end on the inner periphery of the ring. A plurality of extended locking plates 5 are provided, and are closely fitted to the inner periphery of the upper end portion 13b of the cylindrical portion 13 of the spout portion B downwardly on the lower surface of the top portion 1 inside the cap portion A. A ring-shaped inner seal portion 1a is provided, and above the upper end portion 13b of the cylindrical portion 13, a space portion into which the upper end portion 13b can be fitted when the cap portion A and the spout portion B are re-covered. 1b and the cap The spout B, which is covered by the screwing of A, has a closing plate 16 for sealing the inside of the cylindrical portion 13 and an opening for opening provided on the closing plate 16 via a ring-shaped half-cut portion 16a. A pull ring portion 18, a ring-shaped convex portion 14 in which the locking plate 5 rides over and fits on the outer periphery of the lower end of the cylindrical portion 13, and intermittently provided on the outer periphery of the lower end of the cylindrical portion 13 and each of the locking plates. 5 and a plurality of convex portions 15 are provided.

For this purpose, when the cylindrical part 2 of the cap A that is screwed onto the container outlet part B and closed with a lid is rotated spirally in the opening direction, the ring-shaped band part 4 is provided with each locking plate provided at the lower end thereof. The cylindrical portion 2 of the cap A does not rotate because 5 is locked between the plurality of convex portions 15, and the half cut portion or partial connection that can be easily broken along the connecting portion with the ring-shaped band portion 4. The ring-shaped band part 4 is separated from the ring-shaped band part 4 by the part 3, and the ring-shaped band part 4 remains on the spout B part side, and the plug is opened.

  And after breaking and removing the ring-shaped band part 4 remaining on the spout part B side through the notch part 6 (or connecting part 6a), the cap A and the spout part B with a pull ring again The upper end 13b of the cylindrical portion 13 of the spout B is fitted into the space 1b and the ring-shaped inner seal portion 1a of the cap A is connected to the upper end of the cylindrical portion 13 of the spout B when the screwing lid is applied. In order to closely fit the inner periphery of 13b, it is possible to improve the sealing performance in the screwed lid state again.

FIG. 1A is a side cross-sectional view for explaining one embodiment of the present invention, and FIG. 1B is a cross-sectional plan view taken on line L-L, for a plastic spigot with an unauthorized opening preventing function according to claim 1 of the present invention. This will be described in detail below.

As shown in FIG. 1 (a), a plastic spigot with an unauthorized opening preventing function according to claim 1 of the present invention is provided with a cap part A and a container spout part to which the cap part A is screwed and covered. B.

  As shown in FIG. 1A, the cap part A includes a top part 1, a cylindrical part 2, a screw part 2 a provided on the inner periphery of the cylindrical part 2, and a ring at the lower end part of the cylindrical part 2. A ring-shaped ring-shaped band portion 4 having the same diameter as the cylindrical portion 2 connected in a shape and having a notch portion 6 or a half-cut portion 6a in the ring generatrix direction; the cylindrical portion 2 and the ring-shaped band portion 4; An easily breakable half-cut portion or partial joint portion 3 provided along the connecting portion of the ring-shaped band portion 4 and a ring inner portion of the ring-shaped band portion 4 via a hinge 5a at a ring inner peripheral lower end of the ring-shaped band portion 4 And a plurality of locking plates 5 extending in a substantially horizontal direction toward the center.

  As shown in the LL plane sectional view of FIG. 1B, the plurality of locking plates 5 are provided on the ring inner surface side of the ring-shaped band portion 4 on the hinge line 5a ( It extends toward the center of the ring so that it can be bent via a bending portion.

  The container outlet B includes a cylindrical portion 13, a closing plate 16 for sealing the inside of the cylindrical portion 13, and a pull ring portion 18 for opening provided on the closing plate 16 via a ring-shaped half cut portion 16a. A ring-shaped convex portion 14 into which the locking plate 5 on the inner surface of the ring-shaped band portion 4 of the cap portion A is fitted and fitted on the outer periphery of the lower end of the cylindrical portion 13, and intermittently provided on the outer periphery of the lower end of the cylindrical portion 13. And a plurality of convex portions 15 into which the locking plates 5 are fitted, and the locking plates 5 are respectively fitted in groove portions between the convex portions 15 and 15 adjacent to each other to form a ring shape of the cap A. The band part 4 is engaged with the container outlet B so as not to rotate. A flange plate 19 for attachment to the container can be provided on the outer periphery of the lowermost end of the cylindrical portion 13 as necessary.

  Then, the cap A shown in FIG. 1 (a) is rotationally screwed in the closing direction with respect to the spout B, so that a plurality of engagements provided on the inner surface side of the ring of the cap A and the ring-shaped band 4 are provided. The stop plate 5 moves downward along the spout B, and the front end 5b of each locking plate 5 is slightly higher in the substantially horizontal direction (see FIG. 1B) or inward of the ring. The tip of the locking plate 5 is bent through the hinge wire 5a in a direction (see FIG. 1 (a)) standing over the ring-shaped convex portion 14 at the lower end portion of the spout B from the inclined direction. The portion 5b is fitted into the lower end of the convex portion 14 so as to be in close contact with the vertical inner wall surface of the spout B at the lower end of the convex portion 14, and the locking plate 5 is fitted into the groove portion between the convex portions 15 and 15. By doing so, the cap A and its ring-shaped band part 4 are connected to the spout part B. Easily separated is a non, is and mounted non-rotatably.

  The pull ring portion 18 is integrally provided at the upper end portion of the support column 17 that stands in the vicinity of the half cutting line of the half cut portion 16a in the ring region of the ring-shaped half cut portion 16a.

  The cap portion A has a ring-shaped inner seal portion 1a that fits tightly to the inner periphery of the upper end portion 13b of the cylindrical portion 13 of the spout portion B, facing downward on the lower surface of the top portion 1 in the cap portion A. Is provided.

  Further, in the cap part A, the upper end part 13b can be fitted into a portion corresponding to the upper part of the upper end part 13b of the cylindrical part 13 of the spout part B screwed, and the cap part A and the ring part A space portion 1b for sealing reinforcement is provided to reinforce the sealing performance of the lid when the spout B after the strip-shaped band portion 4 is removed and screwed again.

As shown in the side sectional view showing the state of the cap before opening shown in FIG. 2 (a), the plastic stopper with an unauthorized opening preventing function of the present invention is screwed onto the container spout B and covered. When the cylindrical portion 2 of the closed cap A is rotated spirally in the opening direction, each of the ring-shaped band portions 4 is locked between the plurality of convex portions 15 by the respective locking plates 5 provided at the lower ends thereof. Therefore, the cylindrical part 2 of the cap A is separated from the ring-shaped band part 4 by a half-cut part or a partial connecting part 3 that can be easily broken along the connecting part with the ring-shaped band part 4. The plug is opened with the ring-shaped band 4 remaining on the spout B side.

  Then, after the ring-shaped band part 4 remaining on the spout part B side is broken through the notch part 6 (or connecting part 6a) and removed from the spout part B, it is shown in FIG. As shown in the side sectional view showing the state of the cap after opening, the cap A and the spout portion B with a pull ring by the spiral rotation in the sealing direction of the cylindrical portion 2 of the cap A The upper end portion 13b of the cylindrical portion 13 of the spout portion B is fitted into the space portion 1b by the screwing lid, and the ring-shaped inner seal portion 1a of the cap A is connected to the upper end portion 13b of the cylindrical portion 13 of the spout portion B. Fits closely to the inner circumference of the. Therefore, the sealing performance of the container provided with the spout part B in the screwing lid state again can be improved.

  Further, the spout B of the plastic stopper with an unauthorized opening preventing function of the present invention is a pull-open type spout with a pull ring as shown in FIGS. 1 (a) and 2 (a). As shown in (b), after removing the ring-shaped band part 4 and opening the plug, the cap A of the plug is spirally rotated in the opening direction and removed from the spout B, and then the pull ring 18 is removed. By inserting a finger into the ring and pulling up the pull ring 18 and the support column 17 in the direction of the arrow as shown in FIG. 6A, the half cut portion 16a near the support column 17 is connected to the support column 17. The closing plate 16 starts to be cut, and then the entire cut portion 16a is cut along the half cut portion 16a in the direction of the arrow Ia along the forming direction of the ring-shaped half cut portion 16a as shown in FIG. Been Closing plate 16 is opened (container 30 with or infusion outlet B) disconnected and spout B.

  And after opening spout part B in this way, spout is carried out by the screwing lid again by cap A and spout part B with a pull ring by spiral rotation to the closing direction of cap A. The upper end portion 13b of the cylindrical portion 13 of the portion B is fitted into the space portion 1b, and the ring-shaped inner seal portion 1a of the cap A is closely fitted to the inner periphery of the upper end portion 13b of the cylindrical portion 13 of the spout portion B. Therefore, it is possible to improve the sealing performance of the container provided with the opened spout part B in the re-threaded lid state.

In the plastic stopper with an unauthorized opening preventing function according to the first or second aspect of the present invention, as shown in FIGS. 1 (a) and 2 (a), it faces downward on the lower surface of the top portion 1 in the cap portion A. The ring-shaped inner seal portion 1a that can be tightly fitted to the inner periphery of the upper end portion 13b of the cylindrical portion 13 of the spout portion B is provided in the initial cover state screwing before re-covering, The cylindrical portion 13 is closely fitted (closely) to the inner periphery of the upper end portion 13b.

In the plastic stopper with an unauthorized opening preventing function according to the third aspect of the present invention, as shown in FIGS. 3 (a) and 4 (a), in order to reduce the rotational torque of the cap A in the opening direction. The ring-shaped inner seal portion 1a that can be tightly fitted to the inner periphery of the upper end portion 13b of the cylindrical portion 13 of the spout portion B provided downward on the lower surface of the top portion 1 in the cap portion A is In screwing in the initial lid state before the lid application, it is not fitted to the inner periphery of the upper end portion 13b of the cylindrical portion 13, but the outer periphery of the ring-shaped inner seal portion 1a and the inner periphery of the upper end portion 13b. Is in a state where they are separated from each other without being in contact with each other and not in close contact with each other, or are in close contact with each other but are in close contact with each other. 13 is fitted into the inner periphery of the upper end 13b so as to be in close contact with each other .

  5 (a) to 5 (c) are schematic side views of various cap portions A in the plastic stopper with an unauthorized opening preventing function of the present invention.

A cap A shown in FIG. 5A includes a top portion 1, a cylindrical portion 2 in which a knurl 2b is engraved on the circumferential surface in a generatrix direction, a ring-shaped band portion 4, a cylindrical portion 2 and a ring-shaped band portion 4. A partially connecting portion or half-cut portion 3 that can be easily separated, and a notch portion 6 (easy separating portion) having a connecting portion 6a that can be easily separated at the lower portion of the ring-shaped band portion 4 are provided. The diameter of the ring-shaped band portion 4 is larger than the diameter of the cylindrical portion 2.

  Moreover, the cap A shown in FIG.5 (b) is the top part 1, the cylindrical part 2 which carved the knurl 2b in the bus-line direction on the circumferential surface, the ring-shaped band part 4, the cylindrical part 2, and the ring-shaped band. A partial connecting portion or half-cut portion 3 that can be easily separated from the portion 4, a half-cut portion 6 (easy separation portion) that can be easily separated from the circumferential surface of the ring-shaped band portion 4 in the generatrix direction; And the diameter of the ring-shaped band portion 4 is substantially the same as the diameter of the cylindrical portion 2.

  Moreover, the cap A shown in FIG.5 (c) is the top part 1, the cylindrical part 2 which carved the knurl 2b in the bus-line direction on the circumferential surface, the ring-shaped band part 4, the cylindrical part 2, and the ring-shaped band. A part connecting part or half-cut part 3 that can be easily separated from the part 4 and a notch part 6 that can be easily separated in the generatrix direction on the circumferential surface having the connecting part 6a at the upper part of the ring-shaped band part 4 ( The diameter of the ring-shaped band part 4 is substantially the same as the diameter of the cylindrical part 2.

The side view which shows an example of the plastic cap with an unauthorized opening prevention function of this invention. (A) is a state before opening in an example of the plastic cap with an unauthorized opening prevention function of the present invention, (b) is a side sectional view showing a state after opening the plastic cap. The side view which shows the other example of the plastic cap with an unauthorized opening prevention function of this invention. (A) is the state before opening in the other example of the plastic cap with an unauthorized opening prevention function of this invention, (b) is a sectional side view which shows the state after opening of the plastic cap. (A)-(b) is a side view explaining the plastic cap with a general unauthorized opening prevention function. (A) is a sectional side view of a general plastic cap with a tamper-evident prevention function with a pull-open type pull ring, and (b) is a top view thereof.

Explanation of symbols

A ... Cap part B ... Spout part 1 ... Top part 2 ... Cylindrical part 2a ... Screw part 3 ... Half-cut wire 4 ... Ring-shaped band part 5 ... Locking plate 5a ... Hinge wire 5b ... Locking plate tip 6 ... Notch part 6a ... Connecting part 13 ... Spout part 13a ... Screw part 13b ... Tip part 14 ... Ring-shaped convex part 15 ... Convex part 16 ... Closure plate 16a ... Half-cut part 17 ... Post 18 ... Pull ring 19 ... Flange plate 21 ... Cylindrical part 22 ... Closure plate 23 ... Half cut part 24 ... Post 25 ... Pull ring 26 ... Flange plate 30 ... Container 31 ... Fitting groove for mounting

Claims (3)

A top portion, a cylindrical portion, a screw portion provided on the cylinder inner periphery of the cylindrical portion, and the same diameter as the cylindrical portion connected to the lower end portion of the cylindrical portion in a ring shape through a half-cut line; A thin ring-shaped band part having a notch part or a half-cut part in the ring generatrix direction, and an easily breakable half-cut part or partial connection provided along the connecting part of the cylindrical part and the ring-shaped band part And a plurality of locking plates extending in a substantially horizontal direction toward the inner center of the ring of the ring-shaped band portion via a hinge at the lower end of the ring inner periphery of the ring-shaped band portion A cylindrical portion, a closing plate for sealing the inside of the cylindrical portion, a pull ring portion for opening provided on the closing plate via a ring-shaped half-cut portion, and the engagement on the outer periphery of the lower end of the cylindrical portion With a ring-shaped convex part that the stop plate gets over and fits In tamper-resistant plastic spout consisting spout and being lidding at screwing of the cap portion, the watch bottom outer periphery of the cylindrical portion of the outlet portion intermittently provided and wherein each locking plate And a plurality of convex portions that non-rotate the ring-shaped band portion at the lower end of the cap portion that spirally rotates when the cap is opened, and the lower surface of the top portion in the cap portion. A ring-shaped inner seal portion that can be tightly fitted to the inner periphery of the upper end portion of the cylindrical portion of the spout portion is provided downward, and the cap portion and the spout portion are disposed above the upper end portion of the cylindrical portion. A plastic cap with a tamper-evident-preventing function, wherein a space portion is provided to reinforce the lid sealing property into which the upper end portion of the lid can be reinserted. A top portion, a cylindrical portion, a screw portion provided on the cylinder inner periphery of the cylindrical portion, and the same diameter as the cylindrical portion connected to the lower end portion of the cylindrical portion in a ring shape through a half-cut line; a thin plate-like ring-shaped band portion having a notch or the half-cut unit to the ring bus-line direction, the cylindrical portion and the easily breakable half-cut section or part connecting provided along the connecting portion between the ring-shaped band portion parts and cap portion having a plurality of locking plates and extending in a substantially horizontal direction toward the ring inner center of the ring-shaped band portion through a hinge to the ring inner periphery lower end of the ring-like band portion A cylindrical portion, a closing plate for sealing the inside of the cylindrical portion, a pull ring portion for opening provided on the closing plate via a ring-shaped half-cut portion, and the engagement on the outer periphery of the lower end of the cylindrical portion With a ring-shaped convex part that the stop plate gets over and fits In tamper-resistant plastic spout consisting spout and being lidding at screwing of the cap portion, the watch bottom outer periphery of the cylindrical portion of the outlet portion intermittently provided and wherein each locking plate With a plurality of convex portions that non-rotate the ring-shaped band portion at the lower end of the cap portion that rotates spirally when opened , and downwardly on the lower surface of the top portion in the cap portion, A ring-shaped inner seal portion that can be tightly fitted is provided on the inner periphery of the upper end portion of the cylindrical portion of the spout portion, and the cap portion and the spout portion are disposed above the upper end portion of the cylindrical portion. A space for reinforcing the lid sealing property into which the upper end portion of the lid can be fitted is provided, and the ring-shaped inner seal portion is formed by screwing in the initial lid state before the lid is closed. incorrect characterized by tightly fitted to the inner periphery of the upper end portion of the parts Seal prevention function with plastic spout. A top portion, a cylindrical portion, a screw portion provided on the cylinder inner periphery of the cylindrical portion, and the same diameter as the cylindrical portion connected to the lower end portion of the cylindrical portion in a ring shape through a half-cut line; A thin ring-shaped band part having a notch part or a half-cut part in the ring generatrix direction, and an easily breakable half-cut part or partial connection provided along the connecting part of the cylindrical part and the ring-shaped band part And a plurality of locking plates extending in a substantially horizontal direction toward the inner center of the ring of the ring-shaped band portion via a hinge at the lower end of the ring inner periphery of the ring-shaped band portion A cylindrical portion, a closing plate for sealing the inside of the cylindrical portion, a pull ring portion for opening provided on the closing plate via a ring-shaped half-cut portion, and the engagement on the outer periphery of the lower end of the cylindrical portion With a ring-shaped convex part that the stop plate gets over and fits In the plastic spigot with an unauthorized opening preventing function formed by a spout part that is covered by screwing of the cap part, the stopper plate is provided intermittently on the outer periphery of the lower end of the cylindrical part of the spout part. With a plurality of convex portions that non-rotate the ring-shaped band portion at the lower end of the cap portion that rotates spirally when opened, and downwardly on the lower surface of the top portion in the cap portion, A ring-shaped inner seal portion that can be tightly fitted is provided on the inner periphery of the upper end portion of the cylindrical portion of the spout portion, and the cap portion and the spout portion are disposed above the upper end portion of the cylindrical portion. A space for reinforcing the lid sealing property into which the upper end portion of the lid can be fitted is provided, and the ring-shaped inner seal portion is formed by screwing in the initial lid state before the lid is closed. Do not fit to the inner circumference of the upper end of the cover, At, tamper-resistant plastic spout, which comprises tightly fitted to the inner periphery of the upper end portion of the cylindrical portion.

Images