WO2008029585A1

WO2008029585A1 - Bottle container

Info

Publication number: WO2008029585A1
Application number: PCT/JP2007/065361
Authority: WO
Inventors: Koji Suzuki
Original assignee: Fancl Corporation
Priority date: 2006-09-04
Filing date: 2007-08-06
Publication date: 2008-03-13
Also published as: JP2008056334A; HK1128450A1; JP4021461B1; CN101500904B; TW200824983A; TWI383927B; CN101500904A; KR20090061637A

Abstract

Provided is a cap (6) with an unsealing mechanism is so constructed that a portion of a seal member is left uncut by the unsealing operation. The cap (6) includes a cylindrical body with cutting blades (71, 72) for unsealing. The lengths of the seal member unsealed by the two cutting blades (71, 72) are different from each other. After the unsealing operation, an uncut portion of the seal member is left at one place thereon. Furthermore, a bottle container to which the cap is fitted is also provided.

Description

Specification

Bottle container

Technical field

[0001] The present invention relates to a cap provided with an opening means.

Background art

[0002] Many containers have been proposed that have a cap structure that keeps the pouring hole in a sealed state when not in use and opens and uses a seal or the like provided in the pouring hole at the start of use. In addition, there are many cap structures with a tamper-evident prevention mechanism so that they cannot be opened carelessly when not in use.

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.

[0003] In these conventional examples, no consideration is given to the fact that the broken seal falls into the container or remains uncut.

The opening structure disclosed in the prior document 3 previously proposed by the applicant of the present invention is a form in which the sheath 108 is pushed through by the tip of the guide cylinder 120 formed in the outer cap 109 provided with the outer lid 110 and having an oblique cut. Therefore, there is no need to remove the outer cap at the time of opening the seal, and there is no danger of contamination and contamination of the fingers. The prior invention disclosed in Patent Document 3 is introduced in FIGS. 11, 12, 13, and 14. FIG. FIG. 11 is an overall schematic view of the container, FIG. 12 is a cross-sectional view of the head when not in use, FIG. 13 is a cross-sectional view with the annular band removed, and FIG. 14 is a use state diagram.

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 customer's hands. When the customer uses this cosmetic liquid, if one end 108g of the annular band 108f is pulled, the annular band 108f as shown in FIG. 13 is separated from the lower end of the outer peripheral wall 108a of the inner plug 108. The annular band portion 108f is peeled off. When the exterior cap 109 as shown in FIG. 14 is pressed from above, the exterior cap 109 is lowered. The outer peripheral wall 1 of the main body cap 110 slips on the outer peripheral wall 108a of the inner plug 108 and the outer periphery of the annular protrusion 105 of the mouth 102 of the container 101, and the lower surface of the upper surface plate 110b of the main body cap 110 is the inner plug. It hits the upper end of the outer peripheral wall 108a and the inner peripheral wall 108b.

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 of the guide tube 112 and the vertical edge 112c shields the inner plug 108. The thin outer peripheral edge of the plate 108c is inserted, and as the guide tube 112 is lowered, the cut gradually spreads along the inclined lower edge of the guide tube 112. Then, the shielding plate 108c as shown in FIG. 14 is cut from the inner peripheral wall 108b. At this 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. Is done.

This opens the plug 108 of the mouth 102 of the container 101. Then, 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 1 11b. As a result, the small hole 110a of the top plate 110b of the main body cap 110 opens, and when the container 101 is tilted, the cosmetic liquid is poured out from the small hole 110a through the guide tube 112. Then, when the outer lid 111 is covered with the main body cap 110 again, the protrusion 11 la of the outer lid 111 is fitted into the small hole 110a of the main body cap 110, and the container 101 is sealed.

[0004] 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

Disclosure of the invention

Problems to be solved by the invention

[0005] The present invention proposes a cap having a structure that leaves one place of the sealing member by the opening operation.

Means for solving the problem

[0006] The present invention is to cut and open a sealing member using a cutting blade in a cylindrical shape in which two blades are arranged opposite to each other, and an incision locus by one cutting blade and an incision by the other cutting blade By providing a difference in the distance of the track and providing an uncut portion, the seal member after opening can be securely It is something to be fixed.

The main solution of the present invention is as follows.

(1) A cap equipped with a cylindrical body for opening a seal with a cutting blade! /, And two cutting blades are provided, and the opening distance between the two cutting blades is different, and the seal is cut after the opening operation. A cap with a seal opening mechanism characterized in that the remaining part remains in one place.

(2) A structure with a seal opening mechanism according to (1), wherein the configuration in which the opening distances of the two cutting blades are different is astigmatism and / or the height of the cutting blade tip is different at the cylindrical end. P.

(3) It has a cap body with a cylindrical body on the ceiling surface that can move forward and backward in the pouring hole with two protruding blades arranged asymmetrically at the tip of the cylinder against the sealing film that closes the pouring hole It is characterized by

(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 two cutting blades are arranged to be antisymmetric with respect to 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 rotational rotation at break By setting the relationship as follows, a cap is formed in which the unsealed state of the sealing film formed at the connecting portion is formed after the breaking operation.

Position of one cutting edge A = 0 °

Position of the other cutting edge B Θ b> 180 °

Breaking rotation angle of one cutting blade A Θ cut <Θ b

Breaking rotation angle of one cutting blade A Θ cut + Θ b> 360 °

(5) 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.

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 moved forward and backward by inscribed in the pouring hole on the ceiling surface of the lid. Do A cylindrical body with a cutting blade is formed, and the two cutting blades are formed, and the spacing between the protruding blades is asymmetrical with a large interval having a large separation angle and a short interval having a small separation angle. And

The range where the tip of the protruding blade provided on the cap body breaks the sealing film of the inner cap pouring hole from the position where the rotation approach is larger than the small separation angle and smaller than the large separation angle The inner cap and the cap body are set in a screwed relationship.

(6) The cap according to (1) to (5), characterized in that the cap body is provided with a hinged cap body at the tip.

(7) A ring-shaped unsealing prevention member is provided between the inner cap and the cap body to prevent rotation in the unsealing direction. Cap.

(8) A synthetic resin bottle container to which the cap described in any one of (1) to (7) is attached.

The invention's effect

[0008] By providing the configuration as described above, the present invention has the following effects specific to the present invention.

1. By providing a difference in the incision length of the cutting blade, it is possible to provide a force S to provide an uncut portion.

2. By rotating a cylindrical body with two cutting edges at the tip and regulating the opening operation, the uncut portion can be reliably defined.

3. By screwing the inner cap with the seal member and the cylindrical body with the cutting blade, the force required for opening can be reduced and the end of rotation can be specified. The reliability of the uncut portion can be improved.

4. Cutting is started from two power points by two cutting blades, and when one of them is cut off, a cutting sound is heard, confirming that the opening operation has been completed.

Brief Description of Drawings

[0009] FIG. 1 is a partially enlarged view of the cap of the present embodiment attached to the container body, FIG. 1 (a) shows an unused state, and FIG. 1 (b) shows a state where the seal is opened.

[Figure 2] Cross section of hinged cap body [Figure 3] External view of cap body

[Fig. 4] View of the cap body from the bottom side showing the cutting blade state

[Figure 5] Cross section of inner cap

[Figure 6] External view of inner cap

7] External view of the container body

8] Cross-sectional view with hinged cap open

9] Partially broken sectional view of the anti-opening ring

FIG. 10 is a diagram showing the opening operation of the cutting blade of this example, where FIG. 10 (a) is the position of the cutting blade in an unused state, FIG. 10 (b) is the cutting start position, and FIG. 10 (c) Indicates the cutting end position.

[Fig. 11] Overall schematic diagram of conventional container

[Fig.12] Cross-sectional view of the head in the unused state of the conventional example

FIG. 13 is a cross-sectional view of the head with the conventional annular band removed.

14] Cross-sectional view of the head in the conventional state of use

Explanation of symbols

1 Bottle container

2 Container body

21 neck

22 Annular projection

23 Vertical rib

3 Inner cap

31 Outer tube

32 Inner tube

33 Male thread

34 Annular recess

35 Air gap

36 vertical ribs

37 Engaging recess

4 Cap body 42 Female thread

5 Opening prevention ring

61 Hinge

62 stopper

63 Knob

65 Outlet

7 Sealing film

70 Cylindrical cutting blade

71 Cutting edge A

72 Cutting edge B

73 Cutting edge

74 Cutting edge slope

75 Flat part

77 Rear slope

78 Flat

79 Connecting piece

81a Vertical position of unused cutting blade A

81b Vertical position of unused cutting blade B

82a Vertical position of cutting edge A at sealing film cutting start point

82b Longitudinal position of cutting edge B at sealing film cutting start point

83a Longitudinal position of cutting edge A at sealing membrane incision end point

83b Longitudinal position of cutting edge B at sealing membrane incision end point

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention relates to a cap on a neck portion of a container body, and includes an inner cap that directly covers the neck portion of the container body, and a cap body that covers the inner cap. The inner cap is a seal for maintaining an unused state. The cap body is provided with a cutting blade that breaks the seal at the start of use. In addition, it prevents unauthorized opening when not in use. An anti-opening ring is provided.

Then, the present invention provides an unsealing means for leaving the sealing member in one place and separating it and holding the unsealed sealing member in a state connected to the inner cap. As a means to cut a circle, leaving a part of the seal member, when a cylindrical body with two cutting blades formed at the tip is used and this cylinder is pressed against the seal and rotated, The cutting trajectory of one cutting edge stops before the other cutting start point with respect to the cutting start 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. It can also be realized by combining them.

The cutting operation can be made arbitrary. By controlling the end point of cutting, the uncut portion can be assured. For example, the inner cap and the cap body can be screwed, 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.

[0012] Each component will be described below.

1. Overall configuration

The present invention is a cap having a seal opening structure. This cap is put on the bottle container. The cap is composed of an inner cap provided with a seal member and a cap body that is crowned by the inner cap. In addition, an anti-opening ring that prevents unauthorized opening when not in use is applied as necessary.

[0013] 2. Cap

The cap includes an inner cap and a cap body. If necessary, place an anti-opening ring in the unused state!

2-1 Cap inside

The inner cap has a sealed outflow hole and is crowned on the neck of the bottle container. When the bottleneck is to be crowned, it is desirable to have a double cylindrical shape, with the neck of the bottle sandwiched. The inner cylinder forms an outflow hole and seals the bottom to form a seal member The The inner cap is preferably attached to the bottle so as not to rotate. The connection structure with the bottle is defined mutually with the bottle, but it must be equipped with a vertical pull-out prevention function and a rotation prevention function. For example, a combination of dotted irregularities can realize both functions. Further, it is possible to restrict extraction by combining a ring-shaped convex part and a concave part, and it is possible to restrict circumferential rotation by combining the convex part and the concave part in the vertical direction. 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, they are interlaced with each other to prevent circumferential rotation. Let's go out.

The sealing film which is a sealing member can be curved in a dish shape. In the opened state, the degree of curvature is preferably 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 covered with an inner cap, and is provided with two cutting blades that 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 are attached to the front end of the cylinder that is inscribed in the cylinder and slidable downward. It is preferable to provide it.

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 blades with different sizes, chevron blades with different inclinations, and blades with different tip heights. The opening operation is performed by turning. Rotational cutting with two cutting blades can be realized by ensuring that the cutting trajectories of each cutting blade do not overlap. By restricting the rotation range, an accurate cutting locus can be realized and the connecting piece can be reliably left. The fact that the connecting piece can be used in two places may prevent the seal member from opening sufficiently and hinder smooth dispensing. If it is completely cut off, the seal piece may float inside the bottle container body, or it may pull out the dispensing hole and hinder the outflow. If the bottle container is transparent, it gives the impression that impurities are mixed. In particular, cosmetics and beverages have poor usability. [0015] 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 open piece can be kept constant. For example, if the cutting end part is a downward inclined surface, the downward biasing can be performed by contact. In addition, if the blade is formed so that the blade ends at the end of cutting, and the cylinder with the blade is further advanced from the end of cutting, the connection is clamped by the outer peripheral surface of the cylinder with the blade, and the unsealed piece faces downward. Can be energized. However, there is a danger that the connecting piece will be torn off when the depth of entry is deep, so it is important to keep in mind that the approach will not break.

[0016] As a means for restricting the rotation of the cylindrical body provided with two cutting blades, the inner cap and the cap body are screwed together so that a connecting piece at one force point remains at the end point of the screwing. It is possible to do.

Forming one connecting piece by incision using two cutting blades located on one circumference means that the cutting end point exceeds one of the cutting start points among the 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.

[0017] There are the following modes in the formation of the two blades and the rotation restriction of the opening operation.

(1) A cap equipped with a cylindrical body for opening a seal with a cutting blade! /, And two cutting blades are provided, and the opening distance between the two cutting blades is different, and the seal is cut after the opening operation. Cap with seal opening mechanism where the remaining part remains in one place.

(2) A configuration in which the opening distance between the two cutting blades is different can be realized by making the cylindrical end asymmetry and / or making the height of the cutting blade tip different.

Asymmetry, 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 a length corresponding to a short interval is cut, a long interval is used. A short interval difference remains as a connection piece.

Also, if there is a difference in the height of the tips of the two cutting blades, when cutting operation is performed while rotating, the two cutting blades will have a time difference at the cutting start time, and the length of the time difference will be connected. You can power S to leave as a piece.

(3) It has a cap body with a cylindrical body on the ceiling surface that can move forward and backward in the pouring hole with two protruding blades arranged asymmetrically at the tip of the cylinder against the sealing film that closes the pouring hole cap. (4) As an example of a specific aspect of the asymmetry arrangement, it can be defined as follows. An inner cap provided with a sealing film and a cap body that is screwed into the inner cap, and a cap having two cutting blades that break the sealing film by rotating the cap body forward. The two cutting edges are arranged at the tip of the cylindrical body in asymmetry, 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 edges at 0 °, and the relationship of rotational rotation By setting as follows, a cap is formed in which the unsealed state of the sealing film formed at the connecting portion force place is formed after the breaking operation.

Position of one cutting edge A = 0 °

Position of the other cutting edge B Θ b> 180 °

Breaking rotation angle of one cutting blade A Θ cut <Θ b

Breaking rotation angle of one cutting blade A Θ cut + Θ b> 360 °

(5) Further, by defining the screwing relationship, it is possible to regulate the remaining uncut connection piece. 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 on the outer periphery, and is provided with a pour-out hole made of a short-diameter bottomed cylindrical body with a bottom portion serving as a sealing film on the inner side. The main 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 is capable of moving forward and backward by inscribed in the pouring hole on the ceiling surface of the lid. A cylindrical body with a cutting blade is formed, and the two cutting blades are formed, and the spacing between the protruding blades is asymmetrically arranged with a large interval having a large separation angle and a short interval having a small separation angle. The tip of the protruding blade provided on the cap body is the outlet hole of the inner cap. From the position of beginning to break Tomemaku, Kiya' flop limits rotating enters set screwing relationship of the inner cap and the cap body in a range smaller than the larger the large release angle between from the small spacing angle.

Furthermore, in this case, by using two cutting blade-opening cylindrical blades with a cutting edge formed so that the blade ends at the end point of cutting, the opening piece can be held downwardly biased at the end point of cutting. it can. Furthermore, if the screwing is advanced within the range not exceeding the length of the connecting part from the end of the cutting edge, the connecting piece will be pressed down by the outer peripheral surface of the cylindrical blade, so that the open piece will face downward. Can be further stabilized.

[0019] 2—3 hinge cap

A hinged cap 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 cosmetic containers.

[0020] 2-4 Anti-opening ring

The opening prevention 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.

[0021] 3. Bottle container body

A transparent bottle that can be visually recognized is suitable. From the viewpoint of transparency, synthetic resin and glass can be used. For example, a cosmetic container.

[0022] [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. 1 (a) shows the unused state, and Fig. 1 (b) shows the unsealed state.

2 is a cross-sectional view of the hinged cap body, FIG. 3 is an external view of the cap body, and FIG. 4 is a view of the state of the cutting blade as viewed from the bottom.

FIG. 5 is a sectional view of the inner cap, and FIG. 6 is an external view of the inner cap.

Figure 7 shows an external view of the container body.

FIG. 8 shows a cross-sectional view with the hinged cap open.

FIG. 9 shows a partially broken sectional view of the anti-opening ring.

FIG. 10 is a diagram showing the unsealing operation of the cutting blade of the present embodiment, where FIG. 10 (a) is the position of the cutting blade in an unused state, FIG. 10 (b) is the cutting start position, and FIG. 10 (c). Indicates the cutting end position.

FIG. 1 shows a partially enlarged view of a state where the cap of the present embodiment is mounted on the container body. Fig. 1 (a) shows the unused state, and Fig. 1 (b) shows the unsealed state. In the unused state, the neck portion 21 of the container body 2 is covered with an inner cap 3, an opening prevention ring 5, and a cap body 4 in this order. In the inner cap 3, the tip of the neck of the bottle container enters the gap 35, and the annular protrusion 22 provided on the neck of the bottle container body 2 and the annular recess 34 of the inner cap are crimped and removed. It has been stopped. A vertical rib 23 formed on the base of the neck of the bottle container and a vertical rib 36 provided on the inner surface of the base of the inner cap are engaged to restrict circumferential rotation. The male screw 33 of the inner cap and the female screw 42 of the cap body are screwed together. The screw adopts a double thread and realizes a strong and stable screwing even with a small number of rotations. In order to maintain the unused state, an anti-opening ring 5 is interposed at the bottom of the cap body to stop screwing in, and the cylindrical cutting blade 70 is lowered to prevent contact with the sealing film 7. .

[0024] In use, first remove the cap body and the anti-opening ring together, reattach only the cap body, and proceed to screwing to the end point. Is cut to leave the connecting piece 79 and opened. After that, the hinge cap 6 can be opened to take out the contents and use the contents.

In this example, the sealing film 7 has a dish shape curved downward by Ad. In FIG. 1 (b), this Ad is formed with a curvature that makes contact along the neck 21 of the container body. The sealing film incised in such a state has a stable posture, and can be maintained with a force S to keep the used state after opening.

[0025] The configuration of the cap body will be described with reference to FIGS. Fig. 2 is a sectional view of the hinged cap body, Fig. 3 is an external view of the cap body, and Fig. 4 is a view of the state of the cutting blade as seen from the bottom.

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 with a cutting edge on the tip side is provided at the center. The base side of this cylindrical cutting edge is a spout 65. An engagement convex portion 47 is provided on the inner side of the base end of the cylindrical portion 41 and engages with an engagement concave portion 37 provided on the base end portion of the inner cap, so that they cannot be easily detached at the screwing end point! / , So fit.

FIG. 6 shows a cross section of the cap body showing a state in which the hinge cap 6 is opened.

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. [0027] The cylindrical cutting edge 70 is provided with two cutting edges A71 and B72, and has a substantially chevron shape in a side view, the top is flat 78, and the front of the cutting edge is formed vertically. A part 73, a cutting edge slope 74 following the part 73, and a flat part 75 are further provided. The back of the cutting edge is connected to the flat part 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 separated. Since this cutting blade has a flat portion of 20 ° at the top, if a part of the cutting edge slope 74 that pierces the sealing film while cutting is included, cutting of 170 ° is executed. The uncut remaining angle is 40 degrees.

[0028] The configuration of the inner cap will be described with reference to Figs. Fig. 5 is a cross-sectional view of the inner cap.

6 shows an external view of the inner cap. The inner cap has a substantially cylindrical appearance and is a double structure with a small-diameter cylinder inside. The bottom of the small diameter cylinder is sealed with a sealing film. This is a structure in which 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. It has a gap 35. An engaging recess 37 that engages with the protrusion of the cap main body or the opening prevention ring is provided on the outer base portion of the outer cylindrical 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 and engages with it to stop the position of the crown. Yes. Furthermore, the bulging portion is formed large at the front where the front in the rotation direction is small, and also functions as an anti-rotation function and a resistance function against rotation in the loosening direction. A large number of longitudinal ribs 36, 36, and an annular recess 34 are formed on the inner surface of the outer cylindrical portion 31, and engage with the longitudinal ribs 23 and the annular projection 22 provided on the neck of the container body, It is designed to have a crowned relationship in which the retaining and rotation are prevented.

[0029] 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 that the accommodating portion is at least partially transparent. It can be made of 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 part. In the mounted state, it indicates that it is unused, and prevents the sealing film from contacting the cutting blade. Although detailed illustration is omitted, in order to restrict the engagement position with the inner cap and the cap body, a concave portion and a convex portion are formed for engagement.

[0031] The opening operation will be described with reference to FIG. FIG. 10 shows the positional relationship of the cylindrical blade 70 when 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. 10 (a) shows the unused state with the anti-opening ring loaded, and Fig. 10 (b) shows the starting point when the anti-opening ring is removed and the cutting blades A, B71, 72 start cutting the sealing film 7. FIG. 10 (c) shows a state in which the cutting has been completed with the connecting piece 79 remaining. 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 the same mountain shape.

[0032] Fig. 10 (a) shows the positional relationship of each member on a circular coordinate axis with the rear end of the flat portion 78 of the cutting edge A71 being 0 °. The rear end of the flat part 78 of the cutting edge B is arranged at 210 °, and each flat part has a length of 20 °, between the base of the cutting edge slope 74 and the base of the rear slope 77, which is the bottom of the cutting edge. 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.

[0033] Fig. 10 (b) shows that the flat part of the two cutting blades is sealed at the position where the anti-opening ring is removed and re-engaged to advance 45 ° from the position of Fig. 1 (a). It shows the state of the starting point that penetrated and cut the film. The rear end of flat part 78 of cutting blade B is at 255 °.

[0034] FIG. 10 (c) shows a state in which the excavation has been completed after a further 135 ° rotation. The rear end of the flat part 78 of the cutting blade A71 is located at 180 °. The rear end of flat part 78 of cutting blade B is 30 °. When viewed from a longitudinal section, the cutting edge A71 is in the state of 83a, and the cutting edge tip slope 74 breaks through the sealing film 7.The tip slope part is 15 ° and the flat part is 20 °. The added 170 ° is the angle cut by the cutting blade A71, which is 215 ° in terms of the coordinate axis. Accordingly, a difference 40 ° force S from the rear end 255 ° of the flat portion 78 of the cutting edge B of FIG. 10B is left, and corresponds to a portion that forms the connecting piece 79. A series of screwed rotations are configured to be realized within 360 °. The opening prevention ring component S is 180 °, and the cutting rotation is 180 ° with play. The precise control with such a small rotation angle is realized by adopting the screwing structure with double thread. Yes.

On the other hand, the cutting edge B72 at the cutting end point is in a state of 83b when viewed in a longitudinal section, and the cutting edge portion 73 of the cutting edge B72 is 50 ° in plan view. Therefore, the cutting position of the cutting blade A71 has passed through 45 °, and this part is cut off. Even considering the extension of the synthetic resin, the cutting edge B of the cutting edge B72 has also exceeded the sealing film level of 15 ° due to the intrusion of the screw as with the cutting edge A. .

[0036] This embodiment is considered as follows according to claim 4. In this embodiment, the top part of the cutting blade is a flat part or an inclined surface having a chevron shape, which has a substantial cutting function. Therefore, 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, this relationship need not be considered.

(1) Position of one cutting edge A = 0 °: Rear end position of flat part 78 of cutting edge A71 in Fig. 10 (b) 45 ° ( (It is equivalent to 45 ° here because it assumes a positional relationship just before excavation.)

(2) Position of the other cutting edge B Θ b> 180 °: Rear end position 210 ° of the flat part 78 of the cutting edge B72 in Fig. 10 (a) (corresponding to 210 ° which is a large interval angle here)

(3) —Rear rotation angle of the cutting edge A S cut 6 b: Angle cut by cutting edge A71 170 °

(4) Breaking rotation angle of one cutting blade A 6 cut + 6 b> 360 °: Angle cut by cutting blade A71 170 ° + Rear end position 210 ° of flat part 78 of cutting blade B72 in Fig. 10 (a)

[0037] 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, and the extra rotation operation is not necessary. You can rest assured. Since the cutting blade enters by screwing, the opening operation can be performed with less force than the force pushing straight.

[0038] 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 even if the hinge cap is opened and the dispensing operation such as swinging is performed, the sealing film It is possible to carry out a smooth dispensing operation that also returns to the position. The sealing film can be bent and brought into close contact with the neck of the container main 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 is prepared by combining an inner cap, an anti-opening ring, and a cap body as a unit, and is capable of being crowned by crimping to the neck of the bottle container body filled with the contents. it can. The bottling process can be simplified.

Claims

The scope of the claims

[1] In a cap equipped with a cylindrical body for opening a seal with a cutting blade, two cutting blades are provided, and the opening distance between the two cutting blades is different, and the uncut portion of the seal after opening operation is Cap with seal opening mechanism, characterized by remaining force.

[2] The cap with the seal opening mechanism according to claim 1, wherein the configuration in which the opening distances of the two cutting blades are different is astigmatism at the cylindrical end and / or the height of the cutting blade tip is different. P.

[3] It has a cap body with a cylindrical body on the ceiling surface that can move forward and backward in the pouring hole with two protruding blades arranged asymmetrically at the tip of the cylinder against the sealing film that closes the pouring hole Cap characterized by that.

[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. Thus, the two cutting edges are arranged asymptotically opposite the tip of the cylindrical body, and the positional relationship and fracture in the circumferential direction with the axis of the cylindrical body as the center and the tip of one of the cutting edges as 0 ° A cap characterized in that an opening state of the sealing film formed at the connecting portion force place is formed after the breaking operation by setting the relationship of rotation as follows.

Position of one cutting edge A = 0 °

Position of the other cutting edge B Θ b> 180 °

Breaking rotation angle of one cutting blade A Θ cut <Θ b

Breaking rotation angle of one cutting blade A Θ cut + Θ b> 360 °

[5] A cap that includes an inner cap provided with a sealing film and a cap body that is screwed into the inner cap, and that 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 with a bottom serving as a sealing film on the inside. ,

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 moved forward and backward by inscribed in the pouring hole on the ceiling surface of the lid. A cylindrical body with a cutting blade is formed, and two of the cutting blades are formed, and the interval between the protruding blades is asymmetrically arranged with a large interval having a large separation angle and a short interval having a small separation angle. Wait The

[6] The cap according to any one of claims 1 to 5, wherein the cap body is provided with a hinged cap body at the tip.

[7] The cap according to any one of [1] to [6], wherein a ring-shaped opening prevention member for preventing rotation in the opening direction is provided between the inner cap and the cap body.

[8] A synthetic resin bottle container to which the cap according to any one of claims 1 to 7 is attached.

[9] A synthetic resin bottle container, wherein the bottle container is for liquid cosmetics.