JP2006001556A - Tamperproof pouring tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tamperproof pouring tool which enables the clear recognition that the cap is opened when a cap is once opened, even though the cap is mounted again on a container, and facilitates classified discarding. <P>SOLUTION: A pouring tool main body (20) is at least equipped with a cylindrical body with a screw having a male screw (22) on the outer periphery of a cylindrical part (21), and the lower edge of the cylindrical body is extended outward to form an annular plate (23). A structure is constituted so that when the cap (10) is screwed on the cylindrical part, a projection (24) is formed on a periphery on which the end edge of a skirt part of the cap is overlapped, and an outer peripheral wall (25) is stood from the outer edge of the annular plate. The cap consists of a cap main body (11) with a male screw (12) on the inner periphery and a tamperproof ring (14) connected to its skirt part lower face through a bridging part (13). The ring consists of ring pieces (14a) divided into a plurality of the pieces with the bridging parts, and lower ratchet parts (141) and upper ratchet parts (142) are formed on the lower faces and the upper faces of respective ring pieces. The tamperproof ring (14) is held between the cylindrical part (21) and the outer peripheral wall (25). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an extraction tool using a screw-type plastic cap used for plastic bottles, glass bottles, paper containers, etc., and in particular, it can be clearly recognized that the bottle has been opened once opened. The present invention relates to an extraction tool with an unauthorized opening prevention function.

  In order to prevent unauthorized opening of products at stores in the market and the like, many inventions and devices have been made for plastic dispensing tools having a special structure, and various types of dispensing tools have been used in products (for example, (See Patent Literature 1, Patent Literature 2, and Patent Literature 3).

The said prior art document is shown.
Japanese Patent Laid-Open No. 5-4647 JP 60-158049 A JP 2001-114309 A.

  However, in the inventions of Patent Document 1 and Patent Document 2, it is possible to confirm opening by the unauthorized opening prevention ring being cut in the vertical direction. In this case, when the cap is opened again, it may be difficult to visually determine whether or not the ring has been opened by bringing the ring close to the original state.

  Further, in the invention of Patent Document 3, when the tamper-evident ring is separated from the cap body and remains in the container mouth, when the cap is resealed, the ring is brought close to the cap body as in the case of unopened. This makes it difficult to determine whether or not the package has been opened. In addition, since the tamper-evident ring remains at the container mouth, it is difficult to separate and dispose of it in the case of PET bottles, and in the case of paper containers, etc., when cutting the container with scissors etc. It becomes an obstacle.

  The present invention has been made in view of the above-mentioned problems related to the dispensing tool with an unauthorized opening preventing function, and once opened, it can be recognized that the cap has been clearly opened even if the cap is reattached to the container. It is an object of the present invention to provide a pouring tool with an unauthorized opening prevention function that can be easily disposed of.

Invention of Claim 1 of this invention is a pouring tool which consists of a spout main body and the cap screwed by the cylindrical part of this spout main body, Comprising: The said spout main body is an outer periphery of at least a cylindrical part. And a bottom end of the cap when the cap is screwed onto the cylindrical portion of the annular plate. A cap body having a structure in which a plurality of protrusions are formed on the circumference where the edges overlap, and an annular outer peripheral wall is erected upward from the outer edge of the annular plate, and the cap has a female screw on the inner peripheral surface And an annular tamper-evident ring that is connected to the lower surface of the bottom of the cap body with a plurality of bridging portions interposed therebetween, and the tamper-evident ring is formed from a plurality of divided ring pieces having a bridging portion. The lower ratchet part is formed on the lower surface of each ring piece. The upper surface of each ring piece has a structure in which an upper ratchet portion that engages with a notch formed in the lower surface of the bottom of the cap body is formed, and an irregularity is formed between the tubular portion and the annular outer peripheral wall. An extraction tool with an unauthorized opening prevention function, characterized in that an opening prevention ring is held.

  As described above, according to the first aspect of the present invention, the spout main body includes a threaded cylinder having male threads on at least the outer periphery of the cylindrical part, and the lower edge of the cylinder extends outward to form the annular plate. When the cap of the annular plate is screwed onto the cylindrical portion, a plurality of protrusions are formed on the circumference where the hem edge of the cap overlaps, and the annular outer periphery is further upward from the outer edge of the annular plate. The cap has a structure in which a wall is erected, and the cap is connected to the cap main body having a female screw on the inner peripheral surface and the bottom surface of the bottom of the cap main body through a plurality of bridging portions to prevent unauthorized opening. The tamper-evident ring comprises a ring piece divided into a plurality having a bridging portion, a lower ratchet portion is formed on the lower surface of each ring piece, and an upper surface of each ring piece. Is a notch formed on the bottom of the bottom of the cap body The upper ratchet part that engages with the pipe has a structure in which an unauthorized opening prevention ring is held between the cylindrical part and the annular outer peripheral wall, so that the cap with the unauthorized opening prevention function is opened on the spout body. When trying to rotate along the screw, the protrusion on the annular plate of the spout main body and the lower ratchet portion of the lower ring are engaged, and at the same time, the notch of the cap main body and the upper ratchet portion of the tamper-evident ring are engaged. . When the cap body is further rotated, a force is applied to the bridge piece and the bridge piece is cut. As a result, the ring is disassembled into a plurality of parts and opened. Since the tamper-evident ring is divided when the cap body is resealed, it cannot be returned to the unopened state. That is, once opened, it cannot be returned to the unopened state.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the outer peripheral wall provided on the outer edge of the spout main body is formed at a height at which the tamper-evident ring can be visually recognized from the outside. It is an extraction tool with a function for preventing unauthorized opening.

  Thus, according to the second aspect of the present invention, the peripheral wall provided on the outer edge of the spout main body is formed at a height at which the tamper-evident ring is visible from the outside. It can be easily determined that there is.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the protrusion provided on the annular plate and the lower ratchet portion provided on the lower surface of the tamper-evident ring corresponding thereto are continuous at one place. Thus, the pouch is provided with a tamper-evident preventing function.

  Thus, according to the invention described in claim 3, a plurality of protrusions provided on the annular plate and a plurality of lower ratchet portions provided on the lower surface of the corresponding tamper-evident ring are continuously formed in one place. Therefore, when the cap is rotated along the male screw of the spout main body and closed, the lower ratchet portion provided on the lower surface of the tamper-evident ring and the protrusion provided on the annular plate of the spout main body are securely engaged. At the same time, it will not come off.

  According to a fourth aspect of the present invention, in the first, second, or third aspect of the present invention, the spout main body and a cap that is screwed onto the cylindrical portion of the spout main body are formed of a thermoplastic resin. It is an extraction tool with an unauthorized opening prevention function, characterized by

  Thus, according to the invention described in claim 4, since the spout main body and the cap screwed onto the cylindrical portion of the spout main body are formed of the thermoplastic resin, it is relatively inexpensive. A cap with a tamper-evident prevention function with good performance can be produced.

  Thus, the extraction tool with an unauthorized opening preventing function of the present invention has the following effects.

That is, by using the structure as described above, it is possible to easily determine the unopened property at the time of closing with the appearance. Special tools and parts are not required for the production of caps and spout bodies. Special caps and parts are not required when the cap is opened, and conventional capping materials can be used. Since it does not remain in the tamper-evident prevention ring spout body, it is easy to dispose and collect after use.

The present invention will be described in detail below based on one embodiment.
As shown in FIG. 1 and FIG. 2, for example, the pouring tool with an unauthorized opening preventing function of the present invention includes a spout main body (20) and a cap screwed onto the tubular portion (21) of the spout main body ( 10).

  The spout main body (20) and the cap (10) are usually manufactured by injection molding a rigid thermoplastic resin such as polypropylene resin. By using a thermoplastic resin having rigidity, it is possible to produce an extraction tool with an unauthorized opening preventing function that is relatively inexpensive and has a good performance.

  The spout main body (20) includes a threaded cylinder having a male screw (22) on at least the outer periphery of the cylindrical part (21), and the lower edge of the cylinder extends outward to form an annular plate (23). When the cap of the annular plate is screwed to the cylindrical portion (21), a plurality of protrusions (24) are formed on the circumference where the hem end edges of the cap overlap, and further, the upper portion is extended upward from the outer edge of the annular plate. It has a structure in which an annular outer peripheral wall (25) is erected.

  The annular plate may be extended outward beyond the outer peripheral wall to form a flange (26) as shown. When the container to which the dispensing tool is attached is, for example, a paper container, the dispensing tool (1) can be more firmly attached to the container by providing the flange (26).

  The cap (10) has a cap body (11) having a female screw (12) on the inner peripheral surface, and an annular tamper-open which is connected to the lower surface of the bottom of the cap body via a plurality of bridge portions (13). It consists of a prevention ring (14).

  The tamper-evident ring (14) is composed of a plurality of divided ring pieces (14a) having a bridging part (13), and a lower ratchet part (141) is formed on the lower surface of each ring piece. Each ring piece (14a) has a structure in which an upper ratchet portion (142) that engages with a notch (15) formed on the bottom surface of the bottom of the cap body is formed on the upper surface of each ring piece (14a).

  And the unauthorized opening prevention ring (14) divided | segmented into plurality is hold | maintained between the cylindrical part (21) and the cyclic | annular outer peripheral wall (25).

  By forming the outer peripheral wall (25) provided on the outer edge of the spout main body (20) at a height that allows the tamper-evident ring (14) to be visually recognized from the outside, it is easy to have the tamper-resistant ring from the outside. Can be determined.

  Further, a plurality of protrusions (24) provided on the upper surface of the annular plate (23) and a lower ratchet portion (141) provided on the lower surface of the corresponding tamper-evident ring (14) are continuously provided in one place. By forming them individually, when the cap is rotated along the male screw of the spout main body and closed, the lower ratchet portion provided on the lower surface of the tamper-evident ring and the protrusion provided on the annular plate of the spout main body are Engage securely and do not come off.

The dispensing tool (1) with an unauthorized opening prevention function of the present invention has the above-described structure. Next, the mechanism of opening and closing will be described.

  First, when closing the cap, the cap body (11) is rotated along the female screw (12) provided on the inner periphery thereof. An unauthorized opening prevention ring (14) enters between the outer peripheral wall (25) of the spout main body (20) and the cylindrical portion (21), and a lower ratchet portion (141) is a projection ( 24). Next, the top surface of the cap body and the tip edge of the cylindrical portion come into contact with each other to complete the closing.

  At this time, the upper part of the tamper-evident prevention ring (14) is above the outer peripheral wall (25) of the spout main body (20), and it can be easily determined from the appearance that the tamper-evident prevention ring (14) is present. However, since the lower part of the tamper-evident ring is inside the outer peripheral wall (25), the tamper-evident ring will not come off due to impact or external force during transportation, and the tamper-evident ring is intentionally removed. I can't.

  When opening the cap, the cap body (11) is rotated along the female screw (12) provided on the inner periphery thereof. At this time, the lower ratchet portion (141) on the lower surface of the tamper-evident ring is engaged with the protrusion (24) provided on the upper surface of the annular plate (23) of the spout main body (20), and the bridging portion (13) is engaged. The cap body (11) and the tamper-evident ring (14) are separated by cutting.

  At the time of re-closing, it is difficult to make the same external shape as that at the time of unopening because there is no tamper-opening prevention ring (14), and it can be seen at a glance.

It is a perspective explanatory view showing one example of a cap main body, a tamper-evident prevention ring, and a spout main body screwed with a tamper-evident prevention cap, which constitute the pouring tool with a tamper-evident prevention function of the present invention. It is a fragmentary sectional explanatory view showing the state where the cap which consists of the cap body of the present invention and the tamper-evident prevention ring is screwed into the spout body. FIG. 3 is a partial cross-sectional explanatory view showing a state where the pouring tool with an unauthorized opening preventing function of FIG. 2 is once opened and then closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Extraction tool 10 ... Cap 11 ... Cap body 12 ... Female screw 13 ... Bridge part 14 ... Tamper-proof ring 14a ... Ring piece 141 ... Lower ratchet part 142 ... Upper ratchet part 15 ... ...... Notch 20 ... Outlet body 21 ... Cylindrical part 22 ... Male screw 23 ... Ring plate 24 ... Projection 25 ... Outer peripheral wall 26 ... Flange

Claims (4)

A pouring tool comprising a spout main body and a cap screwed onto the tubular portion of the spout main body,
The spout main body includes a threaded cylinder having a male screw at least on the outer periphery of the cylindrical portion, and the lower edge of the cylinder extends outward to form an annular plate, and the cap of the annular plate is cylindrical. A plurality of protrusions are formed on the circumference where the hem edge of the cap overlaps, and the annular outer peripheral wall is erected upward from the outer edge of the annular plate,
The cap comprises a cap main body having a female screw on the inner peripheral surface and an annular tamper-evident ring that is connected to the lower surface of the bottom of the cap main body with a plurality of bridging portions interposed therebetween,
The tamper-evident ring is composed of a plurality of divided ring pieces having a bridging portion, a lower ratchet portion is formed on the lower surface of each ring piece, and an upper surface of the cap body is formed on the upper surface of each ring piece. It has a structure in which an upper ratchet portion that engages with a notch formed on the bottom surface of the hem portion is formed
An extraction tool with an unauthorized opening prevention function, wherein an unauthorized opening prevention ring is held between the tubular portion and the annular outer peripheral wall.   The outer peripheral wall provided in the outer edge of the said spout main body is formed in the height which a tamper-evident prevention ring can be visually recognized from the outside, The extraction tool with a tamper-evident prevention function of Claim 1 characterized by the above-mentioned.   The protrusion provided on the annular plate and the lower ratchet portion provided on the lower surface of the tamper-evident ring corresponding to the protrusion are formed in a continuous manner in one place. 2. An extraction tool with a function for preventing unauthorized opening according to 2.   The tamper-evident prevention according to claim 1, 2 or 3, wherein the spout main body and a cap screwed onto the cylindrical portion of the spout main body are formed of a thermoplastic resin. A functioning dispensing tool.

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