JP2009102074A - Cleaning method between container body and container lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a sufficient amount of a cleaning liquid flow into a space between the outer circumferential surface of the opening portion of a container body and the inner circumferential surface of a skirt wall of a lid fitted on the opening portion, eliminating a necessity to form a plurality of slits on the upper portion of the skirt wall of the lid, even when the cleaning liquid is used at a normal temperature rather than at a high temperature. <P>SOLUTION: On an annular holding flange 8 of the opening portion of the container body, from the lower face 8a of the annular holding flange to the upper face 8c, a plurality of liquid paths 12 extending in the axial direction are formed circumferentially so as to be spaced out. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cleaning method between a container main body and a container lid, more specifically, after filling the container main body with contents such as fruit juice, and attaching the lid to the mouth and neck of the container main body to seal the mouth and neck. A container suitable for applying so-called post-sealing cleaning in which a cleaning liquid is sprayed onto a container composed of a container body and a lid to clean the outer peripheral surface of the mouth and neck and the inner surface of the lid (particularly the inner peripheral surface of the skirt wall). The present invention relates to a cleaning method between a main body and a container lid.

When enclosing contents such as fruit juice in a container composed of a container body and a synthetic resin lid, the container body is filled with contents such as fruit juice through the mouth and neck, and then in the mouth and neck. A lid is attached to seal the mouth and neck. A container main body that can be formed from an appropriate synthetic resin such as polyethylene terephthalate or glass has a cylindrical mouth-and-neck portion whose top surface is opened. A male thread and an annular locking jaw positioned below the male thread are formed on the outer peripheral surface of the mouth neck. A lid formed of an appropriate synthetic resin such as polyethylene or polypropylene has a circular top wall and a cylindrical skirt wall depending from the periphery of the top wall.
Such a skirt wall is formed with a circumferential break line, and the skirt wall is divided into a main part above the circumferential break line and a tamper evidence skirt below the circumferential break line. Female threads are formed on the inner peripheral surface of the main part of the skirt wall, and a plurality of locking pieces are formed on the inner peripheral surface of the tamper evidence skirt at intervals in the circumferential direction. Put the lid on the mouth and neck of the container body, rotate it in the closing direction, screw the female thread on the lid to the male thread on the mouth and neck, and also attach the locking piece of the lid to the annular shape of the mouth and neck The lid is attached to the mouth and neck by being positioned below the locking jaw.

Thus, as is well known to those skilled in the art, when the contents are filled into the container body through the mouth and neck, some of the contents overflow and adhere to the outer peripheral surface of the mouth and neck. Absent. If the contents attached to the mouth and neck are left as they are, there is a risk that the contents exposed to the atmosphere may be moldy. Also, the lid is fixed to the mouth and neck by the solidified contents, and it tends to be difficult to rotate the lid in the opening direction for opening the mouth and neck. Therefore, for example, as disclosed in Japanese Patent Laid-Open No. 5-65151, a plurality of slits are formed on the top of the skirt wall of the lid. Through which the cleaning liquid flows between the outer peripheral surface of the mouth and neck and the inner peripheral surface of the skirt wall of the lid, thus cleaning the outer peripheral surface of the mouth and neck and the inner surface of the skirt wall of the lid (especially the inner peripheral surface of the skirt wall). is doing.
The following techniques are disclosed in relation to cleaning between the container body and the container lid.
Japanese Utility Model Publication No.59-112189 JP 2001-130605 A Japanese Utility Model Publication No. 62-176441

  However, when using a lid with a plurality of slits formed on the top of the skirt wall of the lid, the reason is not necessarily clear, but there is sufficient space between the outer peripheral surface of the mouth and neck and the inner peripheral surface of the skirt wall. In order to allow an amount of the cleaning liquid to flow in, it is necessary to heat the cleaning liquid to a considerably high temperature, for example, about 70 ° C. Therefore, when applied to a container body and / or a lid that has not been heat-treated, there is a high possibility that the mouth and neck and / or the lid will be deformed and the sealing of the mouth and neck will be damaged. In addition, if the slits are made relatively large in order to promote the inflow of the cleaning liquid, there will be a plurality of relatively large slits on the upper part of the skirt wall where it is originally desired that no slits exist. The appearance of the lid itself will be degraded and dust will also accumulate in the slit.

  The present invention has been made in view of the above-mentioned facts, and its main technical problem is that it is not necessary to form a plurality of slits in the upper part of the skirt wall of the lid, and it is not a high temperature cleaning liquid but a normal temperature cleaning liquid. Even in the case where is used, it is possible to allow a sufficient amount of cleaning liquid to flow between the outer peripheral surface of the mouth neck of the container body and the inner peripheral surface of the skirt wall of the lid.

  As a result of intensive studies, the present inventors have a cylindrical mouth-neck portion with an open top surface, and an outer peripheral surface of the mouth-neck portion is provided with a male thread and an annular locking ring located below the male thread. In the container body in which each is formed, a plurality of flow paths extending in the axial direction from the lower surface to the upper surface are formed in the annular locking jaw at intervals in the circumferential direction. Even if there is no need to form a slit and a normal temperature cleaning liquid is used instead of a high temperature cleaning liquid, a sufficient amount is provided between the outer peripheral surface of the mouth neck of the container body and the inner peripheral surface of the skirt wall of the lid. It was found that it was possible to allow the cleaning liquid to flow in.

That is, according to the present invention, as a cleaning method between the container main body and the container lid for achieving the main technical problem, the outer peripheral surface of the mouth / neck part has a cylindrical mouth / neck part with an open top surface. Is formed with a male thread and an annular locking jaw located below the male thread, and a flow path extending through the male thread in the axial direction is circumferentially spaced on the male thread. The annular locking jaw is formed with a plurality of flow paths extending in the axial direction from the lower surface to the upper surface of the annular locking jaw at intervals in the circumferential direction. A container body provided with a neck ring on the lower side, wherein at least one of the flow paths of the male thread is axially aligned with one of the flow paths of the annular locking jaw;
A circular top wall and a cylindrical skirt wall depending from the peripheral edge of the top wall, and a circumferential break line is formed in the skirt wall, and the skirt wall is a main portion above the circumferential break line. And a tamper evidence hem below the circumferential break line, and an internal thread is formed on the inner circumferential surface of the main portion of the skirt wall, and the inner circumference of the tamper evidence hem is In the cleaning method between the container main body and the container lid using a synthetic resin lid in which a plurality of locking pieces to be locked to the annular locking jaw are formed on the surface at intervals in the circumferential direction,
Fill the container body with the contents through the mouth and neck,
After screwing the female thread of the synthetic resin lid onto the male thread of the mouth and neck,
Allowing the cleaning liquid to enter between the neck ring and the lower end of the synthetic resin lid and / or toward the region of the circumferential break line,
After the cleaning liquid flows upward through the flow path of the annular locking jaw and the flow path of the male thread, the cleaning liquid is allowed to flow down along the inner peripheral surface and the outer peripheral surface, and the inner periphery of the skirt wall. I let it flow out between the surface and the outer peripheral surface of the mouth and neck,
A cleaning method between the container body and the container lid is provided.

Preferably, the flow path of the annular locking jaw into which the cleaning liquid enters is constituted by a groove that is open to the outer peripheral surface as well as the lower and upper surfaces of the annular locking jaw.
Preferably, a flow path extending through the female thread in the axial direction is formed in the female thread of the synthetic resin lid at intervals in the circumferential direction, and the flow path of the female thread is formed. At least one of them is axially aligned with one of the locking piece non-existing regions between the locking pieces formed on the inner peripheral surface of the tamper evidence skirt of the lid. Is preferred.

  According to the present invention, it is not necessary to form a plurality of slits in the upper portion of the skirt wall, and the outer peripheral surface of the mouth and neck portion of the container body and the lid even when a normal temperature cleaning liquid is used instead of a high temperature cleaning liquid. A sufficient amount of cleaning liquid can be allowed to flow between the inner peripheral surface of the skirt wall.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 illustrates a preferred embodiment of a container body constructed in accordance with the present invention. The container main body 2 that can be formed from an appropriate synthetic resin such as polyethylene terephthalate or glass has a cylindrical mouth-and-neck portion 4 having an open top surface. A male thread 6, an annular locking jaw 8 positioned below the male thread 6, and an annular neck ring 10 positioned below the annular locking jaw 8 are formed on the outer peripheral surface of the mouth and neck portion 4. ing. The annular locking jaw 8 has a lower surface 8a that extends substantially horizontally, an outer peripheral surface 8b that extends substantially vertically, and an upper surface 8c that is a curved inclined surface that inclines upward in the radial direction and extends in an arc shape. The neck ring 10 also has a lower surface 10a extending substantially horizontally, an outer peripheral surface 10b extending substantially vertically, and an upper surface 10c extending obliquely upward inward in the radial direction.
A plurality of flow passages 12 extending in the axial direction from the lower surface 8a to the upper surface 8c of the annular locking jaw 8 are spaced apart in the circumferential direction in the annular locking jaw 8 in the mouth / neck portion 4 of the container body 2 constructed according to the present invention. It is important that they are formed individually. The flow path 12 in the illustrated embodiment includes a pair of adjacent ones and another pair disposed on the diametrically opposite side with respect to the pair, as understood by comparing FIGS. 1 and 2. There are a total of four pieces, each of which is composed of a groove which is open to the outer peripheral surface 8b together with the lower surface 8a and the upper surface 8c of the annular locking jaw 8. Further, in the mouth-and-neck portion 4 in the illustrated embodiment, four flow paths 14 extending through the male screw 6 in the axial direction are formed in the male screw 6 at intervals in the circumferential direction.

FIG. 3 shows a synthetic resin lid attached to the mouth / neck portion 4 of the container body 2 described above. A lid, generally designated 16, which can be formed from a synthetic resin such as polyethylene or polypropylene, has a circular top wall 18 and a cylindrical skirt wall 20 depending from the periphery of the top wall 18. Two annular seal walls, that is, an inner annular seal wall 22 and an outer annular seal wall 24 are formed on the inner surface of the top wall 18. Further, an annular seal protrusion 26 is formed between the inner annular seal wall 22 and the outer annular seal wall 24. A circumferential break line 28 is formed in the skirt wall 20, and the skirt wall 20 is divided into a main portion 30 above the circumferential break line 28 and a tamper evidence skirt 32 below the circumferential break line 28. It is partitioned.
An annular shoulder surface 34 facing downward is formed on the inner peripheral surface of the skirt wall 20, and a plurality of protrusions 36 extending downward from the annular shoulder surface 34 are formed at appropriate intervals in the circumferential direction. Yes. The circumferential break line 28 causes a cutting blade (not shown) to act from the outer peripheral surface side of the skirt wall 20 in an area where a plurality of protrusions 36 are formed, and only the protrusions 36 remain. It is formed by cutting the skirt wall 20. The plurality of protrusions 36 constitute a so-called bridging portion, and the tamper evidence skirt 32 is connected to the main portion 30 via the plurality of protrusions 36.

  Continuing the description with reference to FIG. 3, a concavo-convex shape 38 is formed on the outer peripheral surface of the main portion 30 of the skirt wall 20 to prevent slipping of a finger hung thereon. A female thread 40 is formed on the inner peripheral surface of the main portion 30. In the female thread 40, a plurality of flow paths 42 extending through the female thread 40 in the axial direction are formed at intervals in the circumferential direction. Locking means 44 is formed on the inner peripheral surface of the tamper evidence skirt 32. The locking means 44 is composed of a plurality of locking pieces 46 that protrude from the inner peripheral surface of the tamper evidence skirt 32 at an interval in the circumferential direction so as to incline radially inwardly upward. In addition, a locking piece non-existing region 48 exists between the adjacent locking pieces 46.

  The description will be continued with reference to FIGS. 3 and 4. When a content such as fruit juice is sealed in a container constituted by the container body 2 and the lid 16, the container body 2 is passed through the mouth and neck portion 4. Fill the contents. Thereafter, as shown in FIG. 4, a lid 16 is attached to the mouth / neck portion 4 of the container body 2. In such a case, the lid 16 is fitted on the mouth / neck portion 4, and the lid 16 is rotated in the closing direction (clockwise as viewed from above in FIG. 4). Thus, the female thread 40 of the lid 16 is screwed into the male thread 6 of the mouth-and-neck portion 4, and the lid 16 is lowered in accordance with the rotation. When the female thread 40 and the male thread 6 are sufficiently screwed together, the locking means 44 formed on the tamper evidence skirt 32 of the lid 16 is elastically deformed and the mouth neck 4 And then elastically restored to be locked to the annular locking jaw 8. The inner annular seal wall 22, the outer annular seal wall 24, and the annular seal protrusion 26 formed on the inner surface of the top wall 18 of the lid 16 are brought into close contact with the inner peripheral surface, outer peripheral surface, and top surface of the mouth and neck portion 4. As a result, the mouth and neck 4 is sealed.

Thus, when contents such as fruit juice are filled into the container body 2 through the mouth and neck part 4, some contents tend to scatter and adhere to the outer peripheral surface of the mouth and neck part 4. Therefore, after attaching the lid 16 to the mouth-and-neck portion 4 of the container body 2, it is necessary to clean the outer peripheral surface of the mouth-and-neck portion 4 and the inner peripheral surface of the lid 16 brought into contact with or close to it. At the time of such cleaning, as shown schematically in FIG. 4, a cleaning liquid 52, which may be room temperature water, is sprayed from an appropriate nozzle 50 toward the mouth-neck portion 4 of the container body 2 to which the lid 16 is attached.
A part of the cleaning liquid 52 sprayed toward the mouth and neck portion 4 is guided radially upward by the upper surface 10 c of the neck ring 10, and between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth and neck portion 4. Enters and flows upward through the locking piece non-existing region 48 between the locking pieces 46, the flow path 12 of the annular locking jaw 8, the flow path 42 of the female thread 40 and the flow path 14 of the male thread 6. To do. Thereafter, the cleaning liquid 52 flows down along the outer peripheral surface of the mouth / neck portion 4 and the inner peripheral surface of the skirt wall 20, and flows out between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth / neck portion 4. . Thus, the outer peripheral surface of the mouth / neck portion 4 and the inner surface of the lid 16 (particularly the inner peripheral surface of the skirt wall 20) are effectively cleaned.

  In order to cause the cleaning liquid 52 introduced between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth-and-neck portion 4 to flow more effectively upward, at least one of the flow paths 14 of the male thread 6 is provided. Is preferably aligned in the axial direction with respect to one of the flow passages 12 of the annular locking jaw 8. Further, in a state in which the lid 16 is attached to the mouth / neck portion 4, at least one of the flow paths 42 of the female thread 40 of the lid 16 is relative to one of the flow paths 12 of the annular locking jaw 8 of the container body 2. It is preferably aligned in the axial direction. In such a case, at least one of the flow passages 42 of the female thread 40 has a locking piece non-existing region between the locking pieces 46 formed on the inner peripheral surface of the tamper evidence skirt 32 of the lid 16. Also, the cleaning liquid 52 introduced between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth-and-neck portion 4 is allowed to flow more effectively upward by aligning one of 48 with the axial direction. It is done.

  In the form shown in FIG. 4, the container body 2 with the lid 16 attached to the mouth-and-neck portion 4 is placed in an upright state and the cleaning liquid 52 is sprayed onto the lid 16. The cleaning liquid 52 can be sprayed onto the lid 16 with the container body 2 with the lid 16 attached to the lid 16 in a sideways or inverted state.

  When the mouth / neck portion 4 is opened and the contents in the container body 2 are consumed, the lid 16 may be rotated in the opening direction (counterclockwise as viewed from above in FIG. 4). Thus, since the female thread 40 of the lid 16 is moved along the male thread 6 of the mouth-and-neck portion 4, the lid 16 is raised with rotation, but the tamper-evidence hem 32 of the lid 16 is Since the locking means 44 disposed on the inner peripheral surface is locked to the annular locking jaw 8 of the mouth-and-neck portion 4, the ascent is prevented. Therefore, a considerable stress is generated in the circumferential break line 28 of the skirt wall 20, and more specifically, the protrusion 36, and the protrusion 36 is broken. Thereafter, the tamper evidence hem 32 separated from the main portion 30 of the skirt wall 20 by the breakage of the circumferential break line 28 is left in the mouth and neck 4, so that the tamper evidence hem 32 of the lid 16 is not included. This part is raised along with the rotation and detached from the mouth-and-neck part 4, and thus the mouth-and-neck part 4 is opened.

FIG. 5 illustrates a lid in another preferred embodiment of a combination constructed in accordance with the present invention. A lid, generally designated 16, which can be formed from a synthetic resin such as polyethylene or polypropylene, has a circular top wall 18 and a cylindrical skirt wall 20 depending from the periphery of the top wall 18. Two annular seal walls, that is, an inner annular seal wall 22 and an outer annular seal wall 24 are formed on the inner surface of the top wall 18. Further, an annular seal protrusion 26 is formed between the inner annular seal wall 22 and the outer annular seal wall 24. A circumferential break line 28 is formed in the skirt wall 20, and the skirt wall 20 is divided into a main portion 30 above the circumferential break line 28 and a tamper evidence skirt 32 below the circumferential break line 28. It is partitioned.
On the outer peripheral surface of the main portion 30 of the skirt wall 20, an uneven shape 38 is formed to prevent slipping of a finger hung thereon. A female thread 40 is formed on the inner peripheral surface of the main portion 30. In the female thread 40, a plurality of flow paths 42 extending through the female thread 40 in the axial direction are formed at intervals in the circumferential direction. Locking means 44 is formed on the inner peripheral surface of the tamper evidence skirt 32. The locking means 44 is composed of a plurality of locking pieces 46 that protrude from the inner peripheral surface of the tamper evidence skirt 32 at an interval in the circumferential direction so as to incline radially inwardly upward. In addition, a locking piece non-existing region 48 exists between the locking pieces 46.

6 and FIG. 6, the circumferential fracture line 28 includes a plurality of (eight in the illustrated example) slits (elongated openings) 49 </ b> A extending in the circumferential direction at intervals in the circumferential direction. Through 49H and a plurality (eight in the illustrated case) of bridging portions 51 located between the slits 49A through 49H. The circumferential lengths of each of the slits 49A to 49H are substantially the same, and the spacing between the slits 49A to 49H, and thus the circumferential length of each of the bridging portions 51, is also substantially the same. Each of the two slits 49A and 49E located in the diametrical direction among the plurality of slits 49A to 49H has a substantially triangular stop protruding downward from the lower end 53 of the main portion 30 of the skirt wall 20. A piece 55 and a substantially triangular stop piece 59 projecting upward from the upper end 57 of the tamper evidence skirt 32 are formed. The stop piece 55 and the stop piece 59 each have an abutment edge 55a and an abutment edge 59a that face each other with a slight gap.
Each of the six slits 49B, 49C, 49D, 49F, 49G, and 49H except for the two slits 49A and 49E in which the stop pieces 55 and 59 are formed has a tamper evident hem at the center in the circumferential direction thereof. A substantially rectangular pedestal piece 61 protruding upward from the upper end 57 of the portion 32 is formed. Accordingly, each of the slits 49B, 49C, 49D, 49F, 49G, and 49H has a pedestal portion 63 located at the center portion in the circumferential direction and a normal portion 65 located on both sides of the pedestal portion 63.
Both side surfaces in the circumferential direction of the pedestal piece 61 in the slits 49C and 49G extend substantially in the radial direction, but both side surfaces in the circumferential direction of the pedestal piece 61 in the slits 49B, 49D, 49F and 49H are directed outward in the circumferential direction. It is inclined inward in the radial direction, and the thickness of both side portions in the circumferential direction of the pedestal piece 61 is gradually reduced toward the outer side in the circumferential direction. Such thickness reduction is achieved by moving the split molds that are moved in the direction perpendicular to the paper surface in FIG. 5 and the mold opening direction that is the vertical direction in FIG. 6 to move the molded product, that is, the lid 16 from the injection mold. This is to reduce so-called unreasonable punching when taking out, and one side surface of the base piece 61 in the slits 49B, 49D, 49F and 49H extends substantially perpendicularly to the mold opening direction, and the other side surface is the mold opening direction. Extends substantially parallel to the.

When enclosing contents such as fruit juice in a container composed of the container body 2 shown in FIG. 1 and the synthetic resin lid 16 shown in FIG. Fill things. Thereafter, as shown in FIG. 7, a lid 16 is attached to the mouth / neck portion 4 of the container body 2. In such a case, the lid 16 is fitted on the mouth / neck portion 4, and the lid 16 is rotated in the closing direction (clockwise as viewed from above in FIG. 7). Thus, the female thread 40 of the lid 16 is screwed into the male thread 6 of the mouth-and-neck portion 4, and the lid 16 is lowered in accordance with the rotation. When the male screw 6 and the female screw 40 are sufficiently screwed together, the locking means 44 formed on the tamper evidence skirt 32 of the lid 16 is elastically deformed, and the mouth neck 4 After passing through the annular locking jaw 8, it is elastically restored and then locked to the annular locking jaw 8.
When the locking means 44 of the tamper evidence skirt 32 passes through the annular locking jaw 8, a considerable resistance is applied to the rotation and lowering of the tamper evidence skirt 32 in the closing direction. When the evidence skirt 32 is rotated in the opening direction (counterclockwise as viewed from above in FIG. 7) relative to the main portion 30 of the skirt wall 20, the slits 49 </ b> A and 49 </ b> E in the circumferential break line 28 are formed. The abutment edge 59a of the stop piece 59 abuts on the abutment edge 55a of the provided stop piece 55, and is closed from the main portion 30 of the skirt wall 20 to the tamper evidence skirt 32 via the stop pieces 55 and 59. When the rotational force in the direction is transmitted and the tamper evidence skirt 32 is moved upward relative to the main portion 30 of the skirt wall 20, the slit 49 in the circumferential break line 28. , 49C, 49D, 49F, 49G, and 49H are in contact with the upper surfaces of the slits 49B, 49C, 49D, 49F, 49G, and 49H, and the base piece 61 is removed from the main portion 30 of the skirt wall 20. Thus, a downward force is transmitted to the tamper evidence skirt 32, and the bridging portion 51 in the circumferential break line 28 is prevented from being broken when the lid 16 is attached to the mouth neck 4.
When the lid 16 is attached to the mouth / neck portion 4 as required, the slits 49A to 49H are positioned at substantially the same height as the upper surface 8c of the annular locking jaw 8, as clearly shown in FIG. Further, the inner annular seal wall 22, the outer annular seal wall 24 and the annular seal protrusion 26 formed on the inner surface of the top wall 18 of the lid 16 are respectively formed on the inner peripheral surface, outer peripheral surface and top surface of the mouth and neck portion 4. The mouth and neck 4 is sealed by being brought into close contact.

When the outer peripheral surface of the mouth-and-neck portion 4 and the inner peripheral surface of the lid 16 brought into contact with or close to the mouth-and-neck portion 4 are cleaned after the lid 16 is attached to the mouth-and-neck portion 4 of the container body 2, a simplified illustration is shown in FIG. 7. As described above, the cleaning liquid 52, which may be room temperature water, is sprayed from the appropriate nozzle 50 toward the container, particularly toward the region of the circumferential break line 28 of the skirt wall 20 of the lid 16. A part of the cleaning liquid 52 sprayed toward the region of the circumferential break line 28 enters between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth-and-neck portion 4 through the slits 49A to 49H. It is directed upward by the upper surface 8 c of the annular locking jaw 8 formed in the neck 4, and flows upward through the flow path 42 of the female thread 40 and the flow path 14 of the male thread 6.
If desired, in addition to or instead of spraying the cleaning liquid toward the region of the circumferential break line 28 of the lid 16, the neck ring 10 and the lid 16 formed on the mouth neck 4 of the container body 2. The cleaning liquid 52 can also be sprayed toward the lower end of the nozzle. A part of the cleaning liquid 52 sprayed toward the lower ends of the neck ring 10 and the lid 16 is guided radially upward by the upper surface 10 c of the neck ring 10, and the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth neck portion 4. Between the locking pieces 46, the flow path 12 of the annular locking jaw 8, the flow path 42 of the female thread 40, and the flow path 14 of the male thread 6. Flow upward.
Thereafter, the cleaning liquid 52 flows down along the outer peripheral surface of the mouth / neck portion 4 and the inner peripheral surface of the skirt wall 20, and flows out between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth / neck portion 4. . Thus, the outer peripheral surface of the mouth / neck portion 4 and the inner peripheral surface of the lid 16 (particularly the inner peripheral surface of the skirt wall 20) are effectively cleaned. When the cleaning liquid 52 flows down along the outer peripheral surface of the mouth / neck portion 4, the cleaning liquid 52 flows through the flow path 12 formed in the annular locking jaw 8, thereby promoting the flow of the cleaning liquid 52. .

  In order to cause the cleaning liquid 52 introduced between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth-and-neck portion 4 to flow more effectively upward, at least one of the flow paths 14 of the male thread 6 is provided. Is preferably aligned in the axial direction with respect to one of the flow passages 12 of the annular locking jaw 8. Further, in a state in which the lid 16 is attached to the mouth / neck portion 4, at least one of the flow paths 42 of the female thread 40 of the lid 16 is relative to one of the flow paths 12 of the annular locking jaw 8 of the container body 2. It is preferably aligned in the axial direction. In such a case, at least one of the flow passages 42 of the female thread 40 has a locking piece non-existing region between the locking pieces 46 formed on the inner peripheral surface of the tamper evidence skirt 32 of the lid 16. Also, the cleaning liquid 52 introduced between the inner peripheral surface of the skirt wall 20 and the outer peripheral surface of the mouth-and-neck portion 4 is allowed to flow more effectively upward by aligning one of 48 with the axial direction. It is done.

  In the form shown in FIG. 7, the container body with the lid 16 attached to the mouth-and-neck portion 4 is placed in an upright state, and the cleaning liquid 52 is sprayed onto the lid 16. The lid 16 can inject the cleaning liquid 52 while the container body 2 to which the lid 16 is attached is placed on its side or in an inverted state.

  When the mouth / neck portion 4 is opened and the contents in the container body are consumed, the lid 16 may be rotated in the opening direction (counterclockwise as viewed from above in FIG. 5). Thus, since the female thread 40 of the lid 16 is moved along the male thread 6 of the mouth-and-neck portion 4, the lid 16 is raised with rotation, but the tamper-evidence hem 32 of the lid 16 is Since the locking means 44 disposed on the inner peripheral surface is locked to the annular locking jaw 8 of the mouth-and-neck portion 4, the ascent is prevented. Therefore, a considerable stress is generated in the circumferential break line 28 of the skirt wall 20, more specifically, in the bridge portion 51, and the bridge portion 51 is broken. Thereafter, the tamper-evidence hem 32 separated from the main part 30 of the skirt wall 20 by the breakage of the circumferential break line 28 is left in the mouth-and-neck part 4, and other than the tamper-evidence hem 32 of the lid 16. This part is raised along with the rotation and detached from the mouth-and-neck part 4, and thus the mouth-and-neck part 4 is opened.

The front view which shows a part of mouth-neck part of the container main body in suitable embodiment comprised according to this invention in a cross section. FIG. 2 is a development view of the mouth and neck portion of the container body of FIG. 1. The front view which shows the lid in suitable embodiment of the combination comprised according to this invention in part in cross section. The front view which shows the state which mounted | wore the mouth neck part of FIG. The front view which shows the lid in other suitable embodiment of the combination comprised according to this invention in part in cross section. Sectional drawing in line AA of FIG. The front view which shows a state with the lid | cover of FIG. 5 attached to the container main body of FIG.

Explanation of symbols

2 Container body 4 Mouth neck 6 Male thread 8 Annular locking jaw 8a Lower surface 8b Outer peripheral surface 8c Upper surface 12 Flow path 14 Flow path 16 Lid 18 Top surface wall 20 Skirt wall 28 Circumferential fracture line 30 Main part 32 Tamper evidence hem Part 40 Female thread 42 Flow path 46 Locking piece 48 Locking piece non-existing area

Claims (3)

A cylindrical mouth-and-neck portion having an open top surface, and a male thread and an annular locking jaw positioned below the male thread are formed on the outer peripheral surface of the mouth-and-neck; A flow path extending through the male thread in the axial direction is formed in the strip at intervals in the circumferential direction, and the annular locking jaw has an upper surface from the lower surface of the annular locking jaw in the axial direction. A plurality of flow paths extending to the circumferential direction are formed at intervals in the circumferential direction, a neck ring is provided below the annular locking jaw, and at least one of the flow paths of the male thread is the annular locking A container body that is axially aligned with one of the flow channels of the jaws;
A circular top wall and a cylindrical skirt wall depending from the peripheral edge of the top wall, and a circumferential break line is formed in the skirt wall, and the skirt wall is a main portion above the circumferential break line. And a tamper evidence hem below the circumferential break line, and an internal thread is formed on the inner circumferential surface of the main portion of the skirt wall, and the inner circumference of the tamper evidence hem is In the cleaning method between the container main body and the container lid using a synthetic resin lid in which a plurality of locking pieces to be locked to the annular locking jaw are formed on the surface at intervals in the circumferential direction,
Fill the container body with the contents through the mouth and neck,
After screwing the female thread of the synthetic resin lid onto the male thread of the mouth and neck,
Allowing the cleaning liquid to enter between the neck ring and the lower end of the synthetic resin lid and / or toward the region of the circumferential break line,
After the cleaning liquid flows upward through the flow path of the annular locking jaw and the flow path of the male thread, the cleaning liquid is allowed to flow down along the inner peripheral surface and the outer peripheral surface, and the inner periphery of the skirt wall. I let it flow out between the surface and the outer peripheral surface of the mouth and neck,
A cleaning method between a container body and a container lid.   The container main body and the container lid according to claim 1, wherein the flow path of the annular locking jaw into which the cleaning liquid enters includes a groove that is open to the outer peripheral surface as well as the lower surface and the upper surface of the annular locking jaw. Cleaning method between.   A flow path extending through the female thread in the axial direction is formed in the female thread of the synthetic resin lid at intervals in the circumferential direction, and at least one of the flow paths of the female thread is formed. The piece is aligned in the axial direction with respect to one of the locking piece non-existing regions between the locking pieces formed on the inner peripheral surface of the tamper evidence skirt of the lid. The cleaning method between the container main body and container lid of description.

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