JP4021461B1 - Cap with opening mechanism and bottle container attached with the cap - Google Patents

Abstract

【Task】
A cap with a structure that leaves one part of the sealing member by opening operation.
[Solution]
In a cap provided with a cylindrical body for opening a seal with a cutting blade, two cutting blades are provided, the opening distance between the two cutting blades is different, and the seal remains uncut after one opening operation Cap with opening mechanism.
[Selection] Figure 1

Description

The present invention relates to a cap provided with an opening means.

Many containers having a cap structure that keeps the pouring hole in a sealed state when not in use and opens and uses a seal provided in the pouring hole at the start of use have been proposed. In addition, many cap structures are accompanied by an unauthorized opening prevention mechanism so that they cannot be opened carelessly in an unused state.
For example, there are Patent Document 1 (Japanese Patent Laid-Open No. 2001-19019), Patent Document 2 (Japanese Patent Laid-Open No. 11-349025), Patent Document 3 (Japanese Patent No. 3024089), and the like.

In these conventional examples, no consideration is given to the fact that the broken seal falls into the container or remains uncut.
The unsealing structure disclosed in the prior document 3 previously proposed by the present applicant is a form in which the seal 108 is pushed and broken by the tip of the guide cylinder 120 formed with an oblique cut in the exterior cap 109 provided with the outer lid 110. Therefore, it is not necessary to remove the outer cap at the time of opening the seal, there is no danger of contamination and finger contamination, and the container can be kept hermetically sealed even after the start of use. The prior invention disclosed in Patent Document 3 is introduced in FIGS. 11, 12, 13, and 14. FIG. 11 shows an overall schematic view of the container, FIG. 12 is a sectional view of the head in an unused state, FIG. 13 is a sectional view in a state where the annular belt portion is removed, and FIG.
In this conventional example, cosmetic liquid is injected into the container 101, the inner plug 108 is crowned and fixed to the mouth 102, the container 101 is sealed, and the outer cap 109 is crowned and fixed as described above. In this state, it is stored until it reaches the hands of the consumer. When the customer uses this cosmetic liquid, when one end 108g of the annular band 108f is pulled, the annular band 108f is separated from the lower end of the outer peripheral wall 108a of the inner plug 108 as shown in FIG. The band part 108f is peeled off. Therefore, as shown in FIG. 14, when the outer cap 109 is pressed from above, the outer cap 109 is displaced downward, and the outer peripheral wall 110c of the main body cap 110 is the outer peripheral wall 108a outer periphery of the inner plug 108 and the annular protrusion of the mouth 102 of the container 101 The lower surface of the upper surface plate 110b of the main body cap 110 hits the upper ends of the outer peripheral wall 108a and the inner peripheral wall 108b of the inner plug 108.
At this time, the guide tube 112 of the main body cap 110 descends inside the inner peripheral wall 108b of the inner plug 108, and the pointed portion formed by the lowest end portion 112b and the vertical edge 112c of the guide tube 112 is the shielding plate of the inner plug 108. The thin outer peripheral edge 108c is inserted, and as the guide tube 112 descends, the cut gradually spreads along the inclined lower edge of the guide tube 112. And as shown in FIG. 14, the shielding board 108c is cut off from the inner peripheral wall 108b. At that time, the inner peripheral annular protrusion 110d of the outer peripheral wall 110c of the main body cap 110 of the outer cap 109 fits into the lower annular recess 107 under the annular protrusion 105 of the outer peripheral wall 103 of the container 101, and the outer cap 109 is fixed. The
As a result, the inner plug 108 of the mouth 102 of the container 101 is opened. In order to take out the cosmetic liquid in the container 101, the outer lid 111 of the outer cap 109 is opened around the hinge 111b. Thereby, the small hole 110a of the upper surface plate 110b of the main body cap 110 is opened, and when the container 101 is tilted, the cosmetic liquid is poured out from the small hole 110a through the guide tube 112. When the outer lid 111 is covered with the main body cap 110 again, the protrusion 111a of the outer lid 111 is fitted into the small hole 110a of the main body cap 110, and the container 101 is sealed.

JP 2001-19019 A JP 11-349025 A Japanese Patent No. 3024089

The present invention proposes a cap having a structure in which one part of a sealing member is left by an opening operation.

  In the present invention, a sealing member is incised and opened using a cutting blade in a cylindrical shape with two blades facing each other, and the distance between the incision locus by one cutting blade and the incision locus by the other cutting blade By providing a difference in the above and providing an uncut portion, the sealing member after opening is surely fixed.

The main solution of the present invention is as follows.
(1) An inner cap provided with a sealing film and a cap body provided with a hinged cap body screwed to the inner cap are provided at the tip,
In the unused state, an independent ring-shaped opening prevention member that prevents rotation in the opening direction is provided between the inner cap and the cap body,
The cap body is provided with a cylindrical body for opening a sealing film with a cutting blade, and two cutting blades for breaking the sealing film by rotating the cap body forward are provided, and the opening distance by the two cutting blades is It is a cap with an unsealing mechanism that has a different configuration and the uncut portion of the sealing film remains after the unsealing operation ,
At the end of the opening operation, the engaging convex portion provided on the inner side of the base end of the cap body and the engaging concave portion provided on the base end portion of the inner cap are engaged and fixed at the screwing end of the cap main body and the inner cap. The position of the cutting blade is fixed,
The sealing film is a dish-shaped curved downward, after opening the encapsulating Tomemaku are you characterized <br/> be stable posture surface which is curved in dish-like contacts the container neck inner wall Cap with opening mechanism.
(2) The configuration in which the opening distances by the two cutting blades are different is that the cutting blades are arranged asymmetrically at the cylindrical end and / or the heights of the cutting blade tips are different. open sealing mechanism with a cap of.
(3) A cap that includes an inner cap provided with a sealing film and a cap body that is screwed into the inner cap, and includes two cutting blades that break the sealing film by rotating the cap body forward. ,
The sealing film has a dish shape curved downward,
At the screwing end of the cap body and the inner cap, the engagement convex portion provided on the inner side of the base end of the cap main body and the engagement concave portion provided on the base end portion of the inner cap are engaged and fixed.
The two cutting blades are arranged asymptotically opposed to the tip of a cylindrical body provided in the cap body, and are arranged in a circumferential direction with the axis of the cylindrical body as the center and the tip of one of the cutting blades being 0 °. By setting the positional relationship and the relationship of the breaking rotation as follows, an unsealed state of the sealing film in which one connecting portion is formed after the breaking operation is formed ,
A cap characterized in that a surface of the sealing film after opening in a dish-like shape is brought into contact with the inner wall of the container neck to obtain a stable posture .
Position of one cutting edge A = 0 °
Position θb> 180 ° of the other cutting edge B
Breaking rotation angle of one cutting edge A θcut <θb
Breaking rotation angle of one cutting edge A θcut + θb> 360 °
(4) A cap that includes an inner cap provided with a sealing film and a cap body that is screwed into the inner cap, and includes two cutting blades that break the sealing film by rotating the cap body forward. ,
The inner cap has a cylindrical shape with a male screw provided on the outer periphery, and is provided with a pour-out hole made of a short-diameter bottomed cylindrical body that forms a bottom portion serving as a sealing film on the inner side.
The sealing film has a dish shape curved downward,
The cap body is a cylindrical lid body having an inner diameter formed with a female screw that is screwed into the male screw of the inner cap , and can be advanced and retracted by inscribed in the pouring hole on the ceiling surface of the cap body. the cutting blade with a cylindrical body which is formed,該切Ri blades are formed two, the cutting edge has a greater spacing is larger spacing angle that interval, arranged in a point-asymmetrical to short intervals a small spacing angle Has been
From the position where the tip of the cutting blade provided on the cap body breaks the sealing film of the pouring hole of the inner cap, the limit of rotational entry is in a range larger than the small separation angle and smaller than the large separation angle. Set the inner cap and the cap body to be screwed,
As an engagement configuration of the cap main body and the inner cap at the rotation approach limit, an engagement convex portion provided on the base end inner side of the cap main body and an engagement concave portion provided on the base end portion of the inner cap are provided.
A cap characterized in that a surface of the sealing film after opening in a dish-like shape is brought into contact with the inner wall of the container neck to obtain a stable posture .
(5) A synthetic resin bottle container to which the cap described in any one of (1) to (4) is attached.
(6) The synthetic resin bottle container according to (5 ), wherein the bottle container is for liquid cosmetics.

By providing the configuration as described above, the present invention has the following effects specific to the present invention.
1. The uncut portion can be provided by providing a difference in the incision length of the cutting blade.
2. By rotating a cylindrical body provided with two cutting blades at the tip and restricting the opening operation, it is possible to reliably define the uncut portion.
3. By screwing the inner cap provided with the sealing film and the cylindrical body provided with the cutting blade, the force required for opening can be reduced and the end of rotation is specified, so the opening location is specified and sealed The certainty of the uncut portion of the film can be improved.
4. Cutting is started from two places by two cutting blades, and when one of them is cut off, a cutting sound is heard, and it can be confirmed that the opening operation has been completed.
5). The sealing film, which is a sealing member, is curved in a dish shape, so that the concave back surface curved in a dish shape comes into stable contact with the neck of the bottle in the opened state. The inner end of the base end is engaged and fixed to the inner end of the inner cap so that the main body cap cannot be reversed, so that the sealing film has a stable posture, and the use state after opening can be kept good. The remaining connecting piece is urged to the back side by the cutting blade to stabilize the posture, and even if the hinge cap is opened and the dispensing operation such as swinging is performed, the sealing film does not return and smooth dispensing is performed. The operation can be performed. The sealing film can be bent and brought into close contact with the neck of the container body, the posture of the sealing film after opening can be kept stable, and the occurrence of trouble during use can be prevented. In particular, the cap body has a cylindrical portion formed with a female screw to be crowned on the inner cap, an engagement convex portion provided on the inner base end of the cylindrical portion, and an engagement concave portion provided on the base end portion of the inner cap. Engage and fit so that they are not easily disengaged at the screwing end point.

The present invention relates to a cap on a neck portion of a container body, and includes an inner cap that is directly crowned on the neck portion of the container body, and a cap body that is crowned on the inner cap. The inner cap is a seal for maintaining an unused state. It has a stop film (hereinafter also referred to as “seal”) member, and the cap body is provided with a cutting blade that breaks the seal at the start of use. Further, an unsealing ring for preventing unauthorized tampering is provided in an unused state.
Then, the present invention provides an opening means for leaving the sealing member at one place and separating it, and holding the opened sealing member in a state connected to the inner cap. As a means for cutting a circular shape while leaving a part of the seal member, when a cylindrical body having two cutting blades formed at the tip is used and this cylindrical body is pressed against the seal and rotated, The cutting trajectory of one cutting edge with respect to the cutting start point stops before the other cutting starting point, and the setting of the two cutting edges is devised so that the cutting trajectory of the other cutting edge can pass one cutting start point Is. This contrivance includes circumferential arrangement relation, blade size, shape, and the like.
In the case of arrangement on the circumference, astigmatism arrangement, in the case of symmetry arrangement, the height of the tip of the blade can be changed, and in the case of an angle blade, the taper angle can be changed. Moreover, it is realizable by combining these.
Although the cutting operation can be arbitrary, the uncut portion can be ensured by regulating the end point of cutting. For example, the inner cap and the cap main body can be screwed together, and the end point of the screwing can be synchronized with the cutting operation.
The material can be applied to the container body, and the cap can be made of synthetic resin or metal.

Each component is described below.
1. Overall Configuration The present invention is a cap provided with a sealing film opening structure. This cap is crowned on the bottle container. The cap includes an inner cap provided with a seal member and a cap body that is covered by the inner cap. Furthermore, an anti-opening ring for preventing unauthorized opening in an unused state is applied as necessary.

2. Cap The cap is composed of an inner cap and a cap body. If necessary, an anti-opening ring is interposed in the unused state.
2-1 Inner cap The inner cap has a sealed outflow hole and is crowned on the neck of the bottle container. When the bottle neck is to be crowned, it is desirable to have a double cylinder shape and to be mounted by sandwiching the neck of the bottle. The inner cylinder forms an outflow hole and seals the bottom to form a seal member. The inner cap is preferably attached to the bottle so as not to rotate. The connection structure with the bottle is a structure that is mutually defined with the bottle, but it is necessary to have a vertical pull-out prevention function and a rotation prevention function. For example, both functions can be realized by combining dot-like irregularities. Further, it is possible to restrict the extraction by combining the ring-shaped convex portion and the concave portion, and it is possible to restrict the rotation in the circumferential direction by combining the convex portion and the concave portion in the vertical direction. To prevent circumferential rotation by providing one or more ribs below the neck of the bottle and one or more ribs on the inner cap at the tip side so as to interlace with each other when worn. You can also.
The sealing film which is a sealing member can be curved in a dish shape. In the opened state, it is preferable that the degree of curvature is the same as the curvature of the inner peripheral diameter of the bottle neck so that the back surface is in stable contact with the neck of the bottle.

2-2 Cap Body The cap body is provided with two cutting blades that are covered with the inner cap and open the sealing member of the inner cap when in use.
When the inner cap has a cylindrical outflow hole, as the cutting blade for opening the seal member, two cutting blades should be provided at the tip of the cylinder that is in contact with the cylinder and that is slidable downward. Is preferred.
The two cutting blades are formed so that the sealing film to be sealed can be cut along the inner peripheral edge, and can be cut off almost entirely to leave a part as a connecting piece. For example, astigmatic arrangement, chevron-shaped blades having different sizes, chevron-shaped blades having different inclinations, blades having different tip heights, and the like. The opening operation is performed by turning. Rotational cutting with two cutting blades can be realized by preventing the cutting trajectories of each cutting blade from overlapping partially. By regulating the rotation range, an accurate cutting locus can be realized, and the connecting piece can be reliably left. If two connecting pieces can be formed, the sealing member does not open sufficiently, and there is a risk of preventing smooth dispensing. If it is completely separated, the seal piece may float in the bottle container body or may be caught by the extraction hole and hinder the outflow. If the bottle container is transparent, the impression that impurities are mixed is given. In particular, cosmetics and beverages have poor usability.

  When the contact portion of the cutting blade that comes into contact with the remaining connecting piece and stops is formed in a downward biased shape, the posture of the opened piece can be kept constant. For example, if the cutting end portion is a downward inclined surface, downward biasing can be performed by contact. Further, when the blade is formed so that the blade ends at the cutting end point, and the bladed cylinder further enters from the cutting end point, the connection is pinched by the outer peripheral surface of the bladed cylinder, and the unsealed piece faces downward. Can be energized. However, since there is a danger that the connecting piece will be torn off when the approach becomes deep, it is important to keep in mind that the approach will not break.

As means for regulating the rotation of the cylindrical body provided with two cutting blades, it is possible to screw the inner cap and the cap body so that one connecting piece remains at the end of the screwing. It is.
Forming one connecting piece by incision using two cutting blades located on one circumference means that the cutting end point surpasses one cutting start point among two cutting start points and incision end points. At this time, a sound is generated to disconnect the connecting piece, so that the end of the opening operation can be confirmed.

There are the following modes in the formation of the two blades and the rotation restriction of the opening operation.
(1) In a cap provided with a cylindrical body for opening a sealing film with a cutting blade, two cutting blades are provided, and the opening distance by the two cutting blades is different, and the sealing film is left uncut after the opening operation. open sealing mechanism cap part is you left one place.
(2) A configuration in which the opening distances by the two cutting blades are different can be realized by making the cylindrical end asymmetry and / or making the height of the cutting blade tip different.
Astigmatism, that is, when the cutting blades are arranged at different intervals on the circumference, when two cutting blades start cutting at the same time, when the length corresponding to the short interval is cut, A short interval difference remains as a connection piece.
In addition, when there is a difference in the height of the tip of the two cutting blades, when performing a cutting operation while rotating, the two cutting blades have a time difference at the start of cutting, and the length of the time difference is connected. Can be left as a piece.
(3) A cap body having a cylindrical body on the ceiling surface that is capable of advancing and retreating in the pouring hole in which two protruding blades are arranged asymmetrically at the tip of the cylinder with respect to the sealing film that closes the pouring hole. cap.
(4) As an example of a specific aspect of the astigmatic arrangement, it can be defined as follows. A cap that includes an inner cap provided with a sealing film and a cap body that is screwed into the inner cap, and includes two cutting blades that break the sealing film by rotating the cap body forward. The two cutting blades are arranged asymptotically opposite the tip of the cylindrical body, and the positional relationship in the circumferential direction with the axis of the cylindrical body as the center and the tip of one of the cutting blades at 0 ° and the relationship of the rotational rotation By setting as follows, the cap is formed in an opened state of the sealing film in which one connecting portion is formed after the breaking operation.
Position of one cutting edge A = 0 °
Position θb> 180 ° of the other cutting edge B
Breaking rotation angle of one cutting edge A θcut <θb
Breaking rotation angle of one cutting edge A θcut + θb> 360 °

(5) Further, by defining the screwing relationship, it is possible to regulate the remaining uncut connection pieces. For example, a cap that includes an inner cap provided with a sealing film and a cap body that is screwed into the inner cap, and includes two cutting blades that break the sealing film by rotating the cap body forward, The inner cap has a cylindrical shape with a male screw provided on the outer periphery, and is provided with a pouring hole made of a short-diameter bottomed cylindrical body formed with a bottom portion serving as a sealing film on the inner side. Is a cylindrical lid body having an inner diameter formed with an internal thread that is screwed into the external thread of the inner cap, and is a cutting blade that is inscribed in the pouring hole on the ceiling surface of the lid and can be advanced and retracted The cutting blade is formed in two pieces, and the spacing between the protruding blades is asymmetrically arranged with a large interval as a large separation angle and a short interval as a small separation angle, The tip of the protruding blade provided on the cap body seals the inner cap's pouring hole Cap from the position of the beginning and set limits to rotate enters the screwing relationship of the inner cap and the cap body becomes smaller range than larger the larger spacing angle than the small spacing angles to break.
Furthermore, in this case, by using two cylindrical blades for opening a seal with a cutting blade formed so that the blade portion ends at the end point of cutting, the opening piece can be kept biased downward at the cutting end point. Furthermore, since the connecting piece is pressed by the outer peripheral surface of the cylindrical blade when the screwing is advanced within the range not exceeding the length of the connecting portion from the end point of the cutting blade, the downward posture of the open piece can be further stabilized. .

2-3 Hinge Cap A cap with a hinge can be provided on the tip side of the cap body. After opening, the contents can be poured out by opening and closing the hinge cap. It can be used conveniently and cleanly for applications such as dispensing after opening. For example, it is suitable for a cosmetic container.

2-4 Anti-opening ring The anti-opening ring indicates an unused state and is preferably provided separately from the cap body and the inner cap. As the unauthorized opening means indicating the unused state, means (for example, Patent Document 3) for connecting the inner cap and the cap body in a band shape is generally used. As a new means, the present applicant has proposed a ring-shaped unsealing prevention member configured separately as shown in JP-A-2006-193202.

3. Bottle container body A transparent bottle that can visually check the remaining amount is suitable. From the point of transparency, synthetic resin and glass can be used. For example, a cosmetic container.

[Example]
FIG. 1 shows a partially enlarged view of a state in which the cap of this embodiment is mounted on the container body. FIG. 1A shows an unused state, and FIG. 1B shows a state where the seal is opened.
2 is a sectional view of the hinged cap main body, FIG. 3 is an external view of the cap main body, and FIG. 4 is a view of the state of the cutting blade as viewed from the lower surface.
FIG. 5 is a sectional view of the inner cap, and FIG. 6 is an external view of the inner cap.
FIG. 7 shows an external view of the container body.
FIG. 8 shows a cross-sectional view of the hinged cap in an open state.
FIG. 9 is a partially broken sectional view of the anti-opening ring.
FIG. 10 is a diagram illustrating the opening operation of the cutting blade according to the present embodiment. FIG. 10A is a position of the cutting blade in an unused state, FIG. 10B is a cutting start position, and FIG. Indicates the cutting end position.

FIG. 1 shows a partially enlarged view of a state in which the cap of the present embodiment is mounted on the container body. FIG. 1A shows an unused state, and FIG. 1B shows a state where the seal is opened.
In the unused state, the inner cap 3, the anti-opening ring 5, and the cap body 4 are covered with the neck portion 21 of the container body 2 in this order. In the inner cap 3, the tip of the neck portion of the bottle container enters the gap 35, and the annular convex portion 22 provided in the neck portion of the bottle container main body 2 and the annular concave portion 34 of the inner cap are press-fitted and prevented from coming off. Has been. The vertical ribs 23 formed on the neck base of the bottle container and the vertical ribs 36 provided on the inner surface of the base of the inner cap are engaged to restrict circumferential rotation. Further, the male screw 33 of the inner cap and the female screw 42 of the cap main body are screwed together. The screw adopts a double thread and realizes strong and stable screwing even at a small number of rotations. In order to keep the unused state, the unsealing ring 5 is interposed at the lower part of the cap body to stop the threading, and the cylindrical cutting blade 70 is lowered to prevent contact with the sealing film 7.

First, the cap main body and the unsealing prevention ring are once removed together, and only the cap main body is reattached and screwing is advanced to the end point. It cuts leaving 79 and it is set as an open state. Thereafter, the hinge cap 6 is opened, the contents can be taken out, and the contents can be used.
In this example, the sealing film 7 has a dish shape curved downward by Δd. In FIG. 1B, this Δd is formed to have a curvature that makes contact along the neck portion 21 of the container body. The sealing film incised in such a state has a stable posture, and the use state after opening can be kept good.

The configuration of the cap body will be described with reference to FIGS. 2 is a sectional view of the hinged cap main body, FIG. 3 is an external view of the cap main body, and FIG. 4 is a view of the state of the cutting blade as viewed from the lower surface.
The cap body 4 has a cylindrical portion 41 formed with a female screw 42 to be crowned on the inner cap, and a hinge cap 6 is provided on the top of the cylindrical portion 41. A cylindrical cutting edge 70 having a cutting edge on the tip side is provided at the center. The base side of this cylindrical cutting edge is a spout 65. Engagement convex part 47 is provided inside the base end of cylindrical part 41, engages with engagement concave part 37 provided in the base end part of the inner cap so that both cannot be easily detached at the screwing end point. Fit.

  A cross section of the cap body showing a state in which the hinge cap 6 is opened is shown in FIG. One end of the top lid 64 is connected by a hinge 61, a knob 63 is formed at the other end, and a stopper 62 that can seal the spout 65 is provided at the center.

  The cylindrical cutting blade 70 is provided with two cutting blades A71 and B72, has a substantially chevron shape in a side view, has a flat top 78, and a cutting edge tip 73 formed vertically in front of the cutting blade, A subsequent cutting edge slope 74 and a flat portion 75 are provided. The back of the cutting edge is connected to the flat portion via the rear slope 77. The two cutting edges are formed with a large spacing angle of 210 ° and a small spacing angle of 150 °. Although the opening operation will be described later, the connecting pieces corresponding to the cutting angles of 150 ° and 40 ° remain without being cut off. Since this cutting blade is provided with a flat portion of 20 ° at the top, if a portion of the cutting edge slope 74 that pierces the sealing film while cutting is included, cutting for 170 ° is executed. The uncut remaining angle is 40 degrees.

The configuration of the inner cap will be described with reference to FIGS. FIG. 5 is a sectional view of the inner cap, and FIG. 6 is an external view of the inner cap. The inner cap has a substantially cylindrical appearance, and has a double structure with a small-diameter cylinder inside. The bottom of the small diameter cylinder is sealed with a sealing film. In this structure, the neck of the container body is inserted into the gap formed by the double cylinder to be crowned.
More specifically, the inner cap 3 is formed in a double manner by the outer cylinder part 31 in which the male screw 33 is formed and the inner cylinder part 32 sealed by the sealing film 7 and is formed by two cylinders. 35. An engagement recess 37 that engages with the protrusion of the cap body or the opening prevention ring is provided on the outer base portion of the outer cylinder portion 31. The engaging recess 37 is formed between the bulging portions having tapers on both sides, and a projection such as a cap main body climbs over the bulging portion to be engaged to stop the position of the crown. Yes. Further, the bulging portion is formed with a small front side in the rotation direction and a large front side, and also serves as a detent function and a resistance function against rotation in the loosening direction. A large number of vertical ribs 36, 36... And an annular recess 34 are formed on the inner surface of the outer cylinder portion 31, and are engaged with the vertical ribs 23 and the annular projection 22 provided on the neck portion of the container body, respectively, to prevent removal. And a crowned relationship in which rotation is prevented.

  The container main body is illustrated in FIG. 7, and it is desirable that a neck portion is formed so that the inner cap can be covered, and at least a part of the container portion is transparent. It can be made of a transparent synthetic resin, and can be produced by blow molding using PET or the like. FIG. 7 is a side view of the container body 2, and a neck portion 21 formed by narrowing the shoulder portion is provided, and an annular convex portion 22 and vertical ribs 23 are formed on the neck portion.

  FIG. 9 illustrates the unsealing prevention ring 5. It has a stepped cylindrical shape and is attached to the inner cap, and the base of the cap body is attached to the upper small diameter portion. In the mounted state, it indicates that it is in an unused state and prevents the sealing film from contacting the cutting blade. Although detailed illustration is omitted, in order to regulate the engagement position with the inner cap and the cap main body, a concave portion and a convex portion are formed for engagement.

  The opening operation will be described with reference to FIG. FIG. 10 shows the positional relationship of the cylindrical blade 70 in a state where the inner cap is viewed in plan. The sealing film 7 provided on the inner cylinder 32 of the inner cap is shown in the center. The state of the two cutting blades A, B71, 72 in the inner cylinder 32 is shown in a longitudinal sectional view. FIG. 10A shows an unused state in which an anti-opening ring is loaded, and FIG. 10B shows a state in which the anti-opening ring is removed and the cutting blades A, B 71 and 72 start cutting the sealing film 7. FIG. 10C shows a state in which the cutting has been completed with the connecting piece 79 left. The shapes of the cutting blade A71 and the cutting blade B72 formed at the tip of the cylindrical blade 70 are as described above, and are substantially chevron shapes having the same shape.

  FIG. 10A shows the positional relationship of each member with a circular coordinate axis in which the rear end of the flat portion 78 of the cutting blade A71 is 0 °. The rear end of the flat portion 78 of the cutting blade B is disposed at 210 °, and each flat portion has a length of 20 °, and is between the base portion of the cutting edge slope 74 and the base portion of the rear inclined surface 77, which is the bottom of the cutting blade. Has a length of 90 °. In the longitudinal sectional view, the flat portion 78 of the cutting blade is not in contact with the sealing film 7.

  FIG. 10 (b) shows that the flat portion of the two cutting blades breaks through the sealing film at the position where the anti-opening ring is removed and re-engaged to advance 45 ° from the position of FIG. 1 (a). The state of the starting point is shown. The rear end of the flat portion 78 of the cutting edge B is at 255 °.

FIG. 10 (c) shows a state in which the cut has been completed after further rotation of 135 °. The rear end of the flat portion 78 of the cutting blade A71 is located at 180 °. The rear end of the flat portion 78 of the cutting blade B is 30 °. When viewed in a longitudinal section, the cutting edge A71 is in a state of 83a, the cutting blade tip slope 74 breaks through the sealing film 7, and the tip slope is 15 ° and the flat portion is 20 °. The added 170 ° is the angle cut by the cutting blade A71, and is 215 ° in terms of the coordinate axis. Accordingly, the difference 40 ° from the rear end 255 ° of the flat portion 78 of the cutting blade B in FIG. 10B is left uncut and corresponds to a portion forming the connecting piece 79.
A series of screwing rotations is configured to be realized within 360 °. The opening prevention ring portion is 180 °, and the cutting rotation is 180 ° including play. Accurate control with such a small rotation angle is realized by adopting a screwing structure with two threads. .

  On the other hand, the cutting edge B72 at the cutting end point is in a state of 83b when viewed from the longitudinal section, and the cutting edge portion 73 of the cutting edge B72 is 50 ° in plan view. Therefore, it passes through the cutting position 45 ° of the cutting blade A71, and this part is cut off. Even if the extension of the synthetic resin is taken into account, the cutting edge slope 74 of the cutting blade B72 also exceeds the sealing film level of 15 ° with the entry of screwing in the same manner as the cutting blade A, so that the separation is reliable. .

This embodiment is considered as follows according to claim 4. In this embodiment, since the top portion of the cutting blade is a flat portion or a chevron-shaped inclined surface performs a substantial cutting function, it is necessary to consider the application and consider the application relationship. In the case of a rod-like cutting blade such as a needle, such a relationship need not be considered.
(1) Position of one cutting edge A = 0 °: rear end position 45 ° of the flat portion 78 of the cutting edge A71 in FIG. 10B (the concept of the invention is that the cutting edge opens the seal) (It is equivalent to 45 ° here because it is assumed to be in the immediate relationship.)
(2) Position θb of the other cutting edge B> 180 °: Rear end position 210 ° of the flat part 78 of the cutting edge B72 in FIG. 10A (corresponding to 210 ° which is a large interval angle here)
(3) Breaking rotation angle θcut <θb of one cutting edge A: Angle 170 ° cut by the cutting edge A71
(4) Breaking rotation angle θcut + θb> 360 ° of one cutting edge A: angle 170 ° cut by the cutting edge A71 + rear end position 210 ° of the flat portion 78 of the cutting edge B72 in FIG.

  Since a breaking sound is generated at the cutting end point of the cutting blade B72, the user can also confirm with the ear that the seal has been reliably opened. it can. Since the cutting blade enters by screwing, the opening operation can be performed with a force smaller than the force pushed straight.

The remaining connecting piece 79 is urged to the back side by the flat portion 75 of the cutting blade A71 to stabilize the posture, and the sealing film can be returned even if the hinge cap is opened and a pouring operation such as swinging out is performed. Therefore, a smooth dispensing operation can be performed.
The sealing film can be bent and brought into close contact with the neck of the container body, the posture of the sealing film after opening can be kept stable, and the occurrence of trouble during use can be prevented.

The cap of the present embodiment can be crowned by first preparing an inner cap, an anti-opening ring, and a cap body by combining them together, and then crimping the cap on the neck of the bottle container body filled with the contents. . The bottling process can be simplified.

FIG. 1 (a) shows an unused state, and FIG. 1 (b) shows a state where the seal is opened, with the cap of the present embodiment attached to the container body. Cross section of hinged cap body External view of the cap body View of the cap body from the bottom side showing the state of the cutting blade Cross section of inner cap External view of inner cap External view of the container body Sectional view with hinged cap open Partially broken sectional view of the anti-opening ring It is a figure which shows opening operation | movement of the cutting blade of a present Example, Comprising: Fig.10 (a) is a position of the cutting blade of an unused state, FIG.10 (b) is a cutting start position, FIG.10 (c) is a cutting end position. Indicates. Overall schematic diagram of conventional container Sectional view of the head in an unused state of the conventional example Cross-sectional view of the head with the conventional annular band removed Cross-sectional view of the head in use in the conventional example

Explanation of symbols

1 Bottle container
2 Container body 21 Neck part 22 Annular convex part 23 Vertical rib

3 inner cap 31 outer cylinder part 32 inner cylinder part 33 male screw 34 annular recess 35 gap 36 vertical rib 37 engagement recess 4 cap body 42 female screw

6 Hinge cap 61 Hinge 62 Plug 63 Knob 65 Outlet

5 Opening prevention ring 7 Sealing film 70 Cylindrical cutting edge 71 Cutting edge A
72 Cutting edge B
73 Cutting edge 74 74 Cutting edge slope 75 Flat part 77 Rear slope 78 Flat 79 Connecting piece

81a Vertical position 81b of cutting blade A in an unused state Vertical position 82a of cutting blade B in an unused state Vertical position 82b of cutting blade A at a sealing film cutting start point Cutting blade B at a sealing film cutting start point Vertical position 83a Longitudinal position 83b of cutting blade A at the sealing film incision end point Vertical position of cutting edge B at the sealing film incision end point

Claims (6)

It is composed of an inner cap provided with a sealing film and a cap body provided with a hinged cap body screwed to the inner cap at the tip,
In the unused state, an independent ring-shaped opening prevention member that prevents rotation in the opening direction is provided between the inner cap and the cap body,
The cap body is provided with a cylindrical body for opening a sealing film with a cutting blade, and two cutting blades for breaking the sealing film by rotating the cap body forward are provided, and the opening distance by the two cutting blades is It is a cap with an unsealing mechanism that has a different configuration and the uncut portion of the sealing film remains after the unsealing operation ,
At the end of the opening operation, the engaging convex portion provided on the inner side of the base end of the cap body and the engaging concave portion provided on the base end portion of the inner cap are engaged and fixed at the screwing end of the cap main body and the inner cap. The position of the cutting blade is fixed,
The sealing film is a dish-shaped curved downward, after opening the encapsulating Tomemaku are you characterized <br/> be stable posture surface which is curved in dish-like contacts the container neck inner wall Cap with opening mechanism. Configuration opening distance by the two cutting edges of different open seal according to claim 1, characterized in that made different heights of the placed and / or cutting blades tip into a point-symmetrical cutting edge in cylindrical end Cap with mechanism. A cap comprising two inner blades provided with a sealing film and a cap main body screwed into the inner cap, and having two cutting blades for breaking the sealing film by rotating the cap main body forwardly,
The sealing film has a dish shape curved downward,
At the screwing end of the cap body and the inner cap, the engagement convex portion provided on the inner side of the base end of the cap main body and the engagement concave portion provided on the base end portion of the inner cap are engaged and fixed.
The two cutting blades are arranged asymptotically opposed to the tip of a cylindrical body provided in the cap body, and are arranged in a circumferential direction with the axis of the cylindrical body as the center and the tip of one of the cutting blades being 0 °. By setting the positional relationship and the relationship of the breaking rotation as follows, an unsealed state of the sealing film in which one connecting portion is formed after the breaking operation is formed ,
A cap characterized in that a surface of the sealing film after opening in a dish-like shape is brought into contact with the inner wall of the container neck to obtain a stable posture .
Position of one cutting edge A = 0 °
Position θb> 180 ° of the other cutting edge B
Breaking rotation angle of one cutting edge A θcut <θb
Breaking rotation angle of one cutting edge A θcut + θb> 360 ° A cap comprising two inner blades provided with a sealing film and a cap main body screwed into the inner cap, and having two cutting blades for breaking the sealing film by rotating the cap main body forwardly,
The inner cap has a cylindrical shape with a male screw provided on the outer periphery, and is provided with a pour-out hole made of a short-diameter bottomed cylindrical body that forms a bottom portion serving as a sealing film on the inner side.
The sealing film has a dish shape curved downward,
The cap body is a cylindrical lid body having an inner diameter formed with a female screw that is screwed into the male screw of the inner cap , and can be advanced and retracted by inscribed in the pouring hole on the ceiling surface of the cap body. the cutting blade with a cylindrical body which is formed,該切Ri blades are formed two, the cutting edge has a greater spacing is larger spacing angle that interval, arranged in a point-asymmetrical to short intervals a small spacing angle Has been
From the position where the tip of the cutting blade provided on the cap body breaks the sealing film of the pouring hole of the inner cap, the limit of rotational entry is in a range larger than the small separation angle and smaller than the large separation angle. Set the inner cap and the cap body to be screwed,
As an engagement configuration of the cap main body and the inner cap at the rotation approach limit, an engagement convex portion provided on the base end inner side of the cap main body and an engagement concave portion provided on the base end portion of the inner cap are provided.
A cap characterized in that a surface of the sealing film after opening in a dish-like shape is brought into contact with the inner wall of the container neck to obtain a stable posture .   A synthetic resin bottle container, wherein the cap according to any one of claims 1 to 4 is attached. The synthetic resin bottle container according to claim 5, wherein the bottle container is for liquid cosmetics.

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