WO2013038515A1

WO2013038515A1 - Cap and container

Info

Publication number: WO2013038515A1
Application number: PCT/JP2011/070936
Authority: WO
Inventors: 章義城田; 高橋　克幸
Original assignee: 日本山村硝子株式会社
Priority date: 2011-09-14
Filing date: 2011-09-14
Publication date: 2013-03-21
Also published as: JP6060080B2; CN103857599A; JPWO2013038515A1; CN103857599B

Abstract

This invention provides a cap and a container which can be satisfactorily cleaned even by a pasteurizer or the like which only sprinkles the top surface side of the container with water. This cap is provided with a skirt wall which extends vertically downward from the outer periphery of the top wall and which is engaged through threads with the mouth of a container. The cap is provided with: cleaning holes for introducing a cleaning liquid, the cleaning holes being located at the upper part of the skirt wall; and discharge openings for discharging the cleaning liquid, the discharge openings being located below the skirt wall. The cap enables satisfactory cleaning because, even if a pasteurizer or the like which only sprinkles the top surface side of the container with cleaning liquid is used, the cleaning liquid efficiently flows into the cap from the cleaning holes located at the upper part of the skirt wall.

Description

Caps and containers

The present invention relates to a cap suitable for performing cleaning using a cleaning liquid after capping, for example, and a container provided with the cap.

When filling a container with a liquid such as fruit juice, if the liquid spills and remains around the mouth of the container, the residue may cause wrinkles or cause an unnecessary increase in cap opening torque. It can be bad. One solution to this problem is to allow the cleaning liquid to flow between the cap and the container mouth through a plurality of bridges connecting the cap skirt wall and the tamper evidence band to the container after capping. Yes (see JP 2001-130518 A).

¡According to the above method, the cleaning liquid flowing into the cap from between the bridges removes the residue. However, since many of the past risers used for such cleaning only spray the cleaning liquid from the top side of the container (shower), the cleaning liquid actually enters the cap from between the bridges under the cap. There is a risk that it will not flow in well.

The present invention has been made in consideration of the above matters, and an object of the present invention is to provide a cap and a container that can be cleaned well even by a path riser that only sprays water from the top surface side of the container. It is.

In order to achieve the above object, a cap of the present invention is a cap provided with a skirt wall that hangs down from the outer peripheral portion of the top wall and is screwed to a container mouth, and is used for introducing a cleaning liquid located at the upper portion of the skirt wall. A cleaning hole and an outlet for discharging the cleaning liquid located below the skirt wall are provided (Claim 1), and at least one cleaning hole is located at a position away from the top of each outlet in the circumferential direction of the skirt wall. It is preferable that it is present (claim 2).

The cap may include a tamper evidence band connected to a lower portion of the skirt wall through a breakable bridge, and the discharge port may be located on an inner peripheral side of the tamper evidence band (Claim 3). In this case, a plurality of the cleaning holes are present at a regular pitch or an unequal pitch in the circumferential direction of the substantially cylindrical skirt wall, and the discharge ports are a regular pitch or an unequal pitch in the circumferential direction of the substantially annular tamper evidence band. There may be a plurality (claim 4).

In the cap, the number of the cleaning holes and the discharge ports may be different (Claim 5), and the number of the discharge ports may be 2 to 8 (Claim 6).

In the cap, the cleaning hole is in a range of 1 to 2.2 mm downward from the upper end of the container mouth when the skirt wall is screwed to the container mouth, and is 1 in the circumferential direction of the skirt wall. It may be a slit-like hole extending in a range of ˜6 mm.

The cap is a two-piece cap provided with a packing that is separate from the cap body and seals the container mouth in the cap body having the top wall and the skirt wall, and the packing is an outer periphery of the container mouth. A side seal portion that is in close contact with the surface, and the cleaning hole is formed from a lower end of the side seal portion of the packing when the skirt wall is screwed to the container mouth portion and the packing is in a state of sealing the container mouth portion. The cleaning hole may be 0.2 mm or more between the inner peripheral surface of the skirt wall and the outer peripheral surface of the side seal portion of the packing. You may be located in the site | part in which a clearance exists (Claim 9).

In the cap, the cap body having the top wall and the skirt wall may be a one-piece cap having a middle leg for sealing the container mouth (claim 10).

In order to achieve the above object, the container of the present invention is provided with the cap according to any one of claims 1 to 10 (claim 11).

In the invention according to each claim, a cap and a container that can be satisfactorily cleaned by a pasterizer or the like that only sprinkles water from the top surface side of the container are obtained.

That is, in the cap of the invention according to each claim, the cleaning liquid efficiently flows into the cap from the cleaning hole in the upper part of the skirt wall even if it is a paste riser or the like that only sprays the cleaning liquid from the top side of the container. Therefore, good cleaning can be performed.

In the cap of the invention according to claim 2, since at least one cleaning hole is located in the circumferential direction of the skirt wall from directly above each discharge port, it enters between the cap main body and the container mouth from the cleaning hole. Even if the washing liquid flows down straight, there is no outlet immediately below it, so it will always flow in the circumferential direction of the tamper evidence band before it flows out of the cap, The effect is increased.

In the cap of the invention according to claim 7, since the cleaning hole is provided in a range within 2.2 mm downward from the upper end of the container mouth, the cleaning liquid does not spread well to the upper part of the container mouth or the upper part of the skirt wall. Will not occur and sufficient cleaning can be performed reliably. In the case of the two-piece cap, the side seal portion of the packing (see reference numeral 7c) in the case of the two-piece cap, and the outer ring (see reference numeral 1b of FIG. 6) in the case of the one-piece cap are positioned so as not to be blocked. By providing the cleaning hole, it is possible to reliably avoid the obstruction of the cleaning due to the side seal portion and the outer ring that are in close contact with the outer peripheral surface of the container mouth portion.

In the cap of the invention according to claim 7, since the cleaning hole is extended by 1 mm or more in the circumferential direction of the skirt wall, the cleaning liquid is satisfactorily introduced into the cap from the cleaning hole, and the width of the cleaning hole is 6 mm or less. In addition, intrusion of minute foreign matters from the cleaning hole, appearance, reduction in strength, and the like can be suppressed to such an extent that they do not cause a problem.

It is a fragmentary sectional view of the container concerning one embodiment of this invention. It is a half sectional view of the cap of the container. It is a bottom view of the cap. It is sectional drawing of the cap main body of the cap. It is the elements on larger scale of the cap. It is a half sectional view which shows the modification of the cap. It is the elements on larger scale of FIG.

DESCRIPTION OF SYMBOLS 1 Top wall 2 Skirt wall 3 Bridge 4 Tamper evidence band 7 Packing 8 Washing hole 9 Discharge port 11 Screw cutting start part M Container mouth part M1 Annular protrusion w Width

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The cap included in the container according to the embodiment of the present invention is a pilfer proof cap that is screwed into the container mouth M as shown in FIG. That is, a skirt wall 2 hanging from the outer peripheral portion of the top wall 1 and a tamper evidence band (hereinafter abbreviated as a band) 4 connected to the lower portion of the skirt wall 2 via a breakable bridge 3 are provided. A flap 5 extends on the inner peripheral side, and the flap 5 can be engaged with an annular protrusion M1 of the container mouth portion M. Therefore, when the cap is opened, the cap body 6 having the top wall 1 and the skirt wall 2 is detached from the container mouth M, but the band 4 remains at the container mouth M, and the cap body 6 (skirt wall 2) and the band 4 The bridge 3 connecting is broken.

This cap is also a cap made of synthetic resin, and is a so-called two-piece cap provided with a packing 7 for sealing the container mouth M inside the cap body 6. That is, the cap body 6 and the band 4 are an integrally molded product made of a synthetic resin, and the packing 7 is a separate synthetic resin member. The packing 7 includes a disc-shaped top plate 7a that comes into contact with the upper surface of the container mouth M, a middle leg 7b that is suspended from the top plate 7a and is in close contact with the inner peripheral surface of the container mouth M, and an outer periphery of the top plate 7a. It has a side seal portion 7c that curves downward from the side and is in close contact with the outer peripheral surface of the container mouth portion M (see FIG. 1).

The cap has a cleaning hole (cleaning liquid introduction hole) 8 located at the upper part of the skirt wall 2 and an inner peripheral side of the band 4 so as to correspond to cleaning by a path riser that only sprinkles water from the top side of the container. And a discharge port (cleaning liquid lead-out hole) 9 located at (see FIG. 1, FIG. 2, FIG. 4).

The cleaning holes 8 are slit-shaped holes extending in the circumferential direction of the skirt wall 2 and penetrating through the skirt wall 2, and there are four cleaning holes 8 (at equal pitches) in the circumferential direction of the skirt wall 2 (FIG. 2). (See FIG. 4).

Here, the cleaning hole 8 extends in the range of 1 to 6 mm in the circumferential direction of the skirt wall 2, in other words, the width w (see FIG. 2) of the cleaning hole 8 is 1 to 6 mm. When the width w is less than 1 mm, it becomes difficult for the cleaning liquid to enter the cap from the cleaning hole 8, and when the width w is more than 6 mm, intrusion of minute foreign matter from the cleaning hole 8, appearance, and deterioration in strength become a problem. There is a fear.

The cleaning hole 8 also exists so as to be located within a range of 1 mm or more downward from the upper end of the container mouth M when the cap is screwed into the container mouth M (attached state). For example, the distance d (see FIG. 1) from the upper end of the container mouth M of the cleaning hole 8 is in the range of 1 mm or more.

Here, if the distance d is less than 1 mm, the packing 7 may block the cleaning hole 8 and inhibit cleaning. As shown in FIGS. 1, 2, and 4, the upper part of the inner peripheral surface of the skirt wall 2 is occupied by a packing pressing block (hereinafter abbreviated as a block) 10, and the distance d is less than 1 mm. The possibility that the cleaning hole 8 is formed so as to penetrate the block 10 is increased, and the possibility that the tamper evidence function of the cap is lost is increased. That is, for example, when the cleaning hole 8 is formed by cutting a part of the skirt wall 2 with a cutter from the outside, a so-called burr may be formed on the inner peripheral surface side of the skirt wall 2. If the cleaning hole 8 is at a position that penetrates the block 10, the burr is formed on the inner peripheral surface of the block 10. Since the inner peripheral surface of the block 10 has a small diameter and is in the immediate vicinity of the packing 7, if there is a burr on the inner peripheral surface of the block 10, the burr hits the packing 7 when opening, and the packing 7 is The possibility of lifting is high, and in this case, there is a high possibility that the tamper evidence function is impaired.

If the distance d is 1 mm or more, the cleaning hole 8 is connected to the side seal portion of the packing 7 when the skirt wall 2 is screwed into the container mouth portion M and the packing 7 is in a mounting state that seals the container mouth portion M. 7c (see FIG. 1) and further below the block 10, and below the block 10, the inner peripheral surface of the skirt wall 2 and the side seal portion 7c of the packing 7 are located. Since there is a clearance A of 0.2 mm or more (see FIGS. 1 and 2) between the outer peripheral surface of the metal and the burr with a protrusion of at most about 0.1 mm, the packing 7 is not lifted when the plug is opened. The tamper-evidence function will be guaranteed reliably.

Further, as shown in FIG. 7, the container mouth portion M has a screw cutting start portion 11 at a position 1.7 mm away from the upper end of the container mouth portion M as a distance D (see also FIG. 1). A cleaning limit portion 11 ′ is provided at a position 2.2 mm away from the upper end of the mouth M as a distance D ′. Here, the screw cutting start portion 11 has a constant inclination angle provided on the upper surface side of the vertical line L1 passing through the outer peripheral surface of the upper end portion of the container mouth portion M and the uppermost screw thread in the container mouth portion M. It exists in the same height position as the intersection P1 with the inclined line L2 which passes on an inclined surface. Further, the cleaning limit portion 11 ′ is present at the same height as the intersection P <b> 2 of the vertical line L <b> 3 and the inclined line L <b> 2 that passes in the vertical direction on the outer peripheral surface of the screw thread positioned at the top in the container mouth M. If the distance d is within the distance D (1.7 mm), the cleaning liquid reaches the upper part of the container mouth part M and the upper part of the skirt wall 2, and sufficient cleaning can be performed. Further, even if the distance d is greater than the distance D (1.7 mm), if the distance d is within the distance D ′ (2.2 mm), the cleaning liquid is directed upward by the upper surface of the uppermost screw thread (surface through which the inclined line L2 passes). It is considered that the upper part of the container mouth part M and the upper part of the skirt wall 2 can be cleaned. If the distance d is greater than the distance D ′ (2.2 mm), the cleaning liquid does not reach the upper part of the container mouth M or the upper part of the skirt wall 2 and there is a possibility that sufficient cleaning cannot be performed. That is, the distance d in this example is in the range of 1 to 2.2 mm (preferably 1 to 1.7 mm).

The discharge port 9 is a hole having a shape in which a folded portion at the bottom of the band 4 is cut out, and there are five outlets (at equal pitches) in the circumferential direction of the band 4 (see FIGS. 2 to 4). .

As described above, the number of the cleaning holes 8 is four, whereas the number of the discharge ports 9 is five, and the number of both of them is different. If at least one cleaning hole 8 is located in the circumferential direction of the skirt wall 2 from directly above each discharge port 9, between the cleaning hole 8 and the cap body 6 and the container mouth M. Even if the entered cleaning liquid flows straight down, there is no discharge port 9 immediately below it, so it will always flow in the circumferential direction of the band 4 until it flows out of the cap, and that much by the cleaning liquid. The cleaning effect is enhanced.

For example, when the contents of the container provided with the cap have heat resistance, the temperature of the shower water (cleaning liquid) that is applied to the container through which the path riser passes is gradually lowered from the inlet toward the outlet. It is around 80 ° C. near the entrance and around 30 ° C. near the exit. Therefore, in the vicinity of the entrance of the pasteriser, the cap is warmed with hot water, and the cleaning hole 8 is opened as shown in FIG. 5 so that shower water can easily enter. Therefore, the width w of the cleaning hole 8 is about 1 to 2 mm. Even so, sufficient cleaning can be performed. In addition, the viscosity of the shower water becomes lower as the temperature becomes higher, and such hot shower water spreads to every corner between the cap and the container mouth portion M, so that the cleaning effect is enhanced. Also, as the container approaches the exit of the path riser, the temperature of the shower water decreases, and as a result, the washing hole 8 narrows and the viscosity of the shower water increases, so it becomes difficult for the shower water to enter the cap. In addition to having good drainage performance, relatively high-viscosity water, which contains more dirt as it flows into the cap first, is entangled with the dirt by relatively lower-viscosity water that flows later. Then, it is washed out and discharged from the discharge port 9, so that very effective cleaning can be performed.

In addition, when the contents of the container equipped with the cap is carbonated water filled at room temperature, the temperature of the shower water bathed by the container is lower than in the above case where the contents are heat resistant. If the width w of the cleaning hole 8 is set to about 6 mm, sufficient cleaning can be performed.

It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the gist of the present invention. For example, the following modifications can be given.

The number of cleaning holes 8 and discharge ports 9 is not limited to four and five, but can be variously changed. For example, the number of cleaning holes 8 can be 2 to 16, preferably 2 to 8, and the number of discharge ports 9 can be 2 to 8, preferably 4 to 6. However, from the standpoint of detergency, it is preferable that a plurality of both 8 and 9 are located at equal intervals in the circumferential direction of the skirt wall 2 and the band 4. In addition, it is desirable not to provide the discharge port 9 immediately below the cleaning hole 8 in terms of improving the cleaning performance by expanding the flow area of the cleaning liquid. It may be difficult to identify and form the position. Therefore, in such a case, it is most effective in terms of detergency to provide both 8 and 9 at equal intervals in the circumferential direction while making the number of both 8 and 9 different from each other. However, for example, only one of the cleaning holes 8 and the discharge ports 9 (for example, the cleaning holes 8) is provided at equal intervals (equal pitch) in the circumferential direction, and the other (for example, the discharge ports 9) is not equally spaced in the circumferential direction. May be provided (with unequal pitches), or both may be provided with unequal pitches. Of course, the positions of both 8 and 9 may be shifted in the circumferential direction while making the number of both 8 and 9 equal.

The container mouth part M may have a screw cutting start part 11 at a position away from 1.7 mm downward from the upper end of the container mouth part M.

As shown in FIG. 1, the skirt wall 2 of the present cap has a female screw portion 12 that is screwed into a male screw portion M2 of the container mouth portion M, and the female screw portion 12 has a skirt wall 2 as shown in FIG. In the circumferential direction, a plurality of small pieces of protrusions 13 are formed, and between the adjacent protrusions 13 there are vertical grooves 14 that serve as paths for the cleaning liquid. Therefore, as shown in FIG. 4, in the case where a plurality of vertical grooves 14 are vertically connected, at least one discharge port 9 (preferably each If the discharge port 9) is provided, the flow area of the cleaning liquid can be widened, and the cleaning effect by the cleaning liquid can be enhanced accordingly. Further, the same effect can be obtained even if the plurality of vertical grooves 14 are shifted in the circumferential direction so as not to be lined up and down.

The cap is not limited to a two-piece cap, and may be a one-piece cap having a middle leg (inner ring) 1a and an outer leg (outer ring) 1b in which the cap body 6 seals the container mouth M (FIG. 6). reference). That is, the middle leg 1a and the outer leg 1b are portions corresponding to the middle leg 7b and the side seal portion 7c of the packing 7, respectively. In the case of a one-piece cap, there is no problem of lifting the packing 7 due to burrs. Therefore, the distance d that defines the height position of the cleaning hole 8 can be set outside the above range (1 to 2.2 mm). The block 10 is also unnecessary.

Further, although the number of knurls 15 of the knurl 15 over the entire circumference of the outer surface of the skirt wall 2 shown in FIG. 2 is 120, the number of ridges and the height of the hills can be arbitrarily changed. For example, in the case of a one-piece cap, since the opening torque is generally larger than that of a two-piece cap, the number of knurls 15 may be set to less than 120 while increasing the ridge so as to easily apply force. FIG. 6 shows an example in which the number of peaks is 60.

The flap 5 can be elastically deformed in the diameter-expanding direction, and is elastically deformed when the cap is attached to the container mouth M to overcome the annular protrusion M1, and after it has been overcome, it is elastically restored and locked to the annular protrusion M1. 2 to 4 show the continuous bellows-like flap 5, but the present invention is not limited to this. For example, as shown in FIG. 6, a plurality of flaps 5 are arranged at intervals in the circumferential direction. In this case, the interval between the adjacent locking pieces 5 a becomes the discharge port 9.

Needless to say, the above modifications may be combined as appropriate.

The container provided with the cap according to the present invention can be used for storing various drinks, liquids other than drinks, powders, and the like in addition to fruit juice drinks and carbonated drinks. In addition, it can be used not only for cleaning by a path riser that only sprays shower water, but also for cleaning by another type of path riser or not cleaned by a path riser.

Claims

A cap with a skirt wall that hangs down from the outer periphery of the top wall and is screwed to the container mouth,
A cap comprising: a cleaning hole for introducing a cleaning liquid positioned above the skirt wall; and a discharge outlet for discharging the cleaning liquid positioned below the skirt wall.
2. The cap according to claim 1, wherein the at least one cleaning hole is located at a position away from a position directly above each discharge port in a circumferential direction of the skirt wall.
The cap according to claim 1, further comprising a tamper evidence band connected to a lower portion of the skirt wall through a breakable bridge, wherein the discharge port is located on an inner peripheral side of the tamper evidence band.
A plurality of the cleaning holes are present at an equal pitch or an unequal pitch in the circumferential direction of the substantially cylindrical skirt wall, and a plurality of the discharge ports are present at an equal pitch or an unequal pitch in the circumferential direction of the substantially annular tamper evidence band. The cap according to claim 3.
The cap according to claim 1, wherein the number of the cleaning holes and the number of the discharge ports are different.
The cap according to claim 1, wherein the number of the discharge ports is 2 to 8.
The cleaning hole is in the range of 1 to 2.2 mm downward from the upper end of the container mouth when the skirt wall is screwed to the container mouth, and in the range of 1 to 6 mm in the circumferential direction of the skirt wall. The cap according to claim 1, wherein the cap is a slit-like hole extending at a point.
The cap body having the top wall and the skirt wall is a two-piece cap provided with a packing that is separate from the cap body and seals the container mouth, and the packing is in close contact with the outer peripheral surface of the container mouth. The cleaning hole has a side seal portion, and the cleaning hole is positioned below the lower end of the side seal portion of the packing when the skirt wall is screwed into the container mouth portion and the packing is in a state of sealing the container mouth portion. The cap according to claim 1.
The cap according to claim 8, wherein the cleaning hole is located in a portion where a clearance of 0.2 mm or more exists between the inner peripheral surface of the skirt wall and the outer peripheral surface of the side seal portion of the packing.
The cap according to claim 1, wherein the cap body having the top wall and the skirt wall is a one-piece cap having a middle leg for sealing the container mouth.
A container comprising the cap according to any one of claims 1 to 10.