JP4846526B2 - Plastic container - Google Patents

Description

  The present invention relates to a container made of a synthetic resin in which four neck ribs are provided on the neck and a protrusion is provided on the trunk.

Cosmetic containers provided with caps for inserting and inserting spouts into the neck of the container and further provided with caps that are screwed on are disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 11-349025) and Patent Document 2 (Japanese Patent Laid-Open No. 2000-247351). Publication) is known.
In such a container, when the cap is turned with the torso held by hand, the lid may not be opened and closed smoothly. In particular, it is slippery when the cosmetic is on the hand. In addition, there is a risk of idling when it is necessary to turn the cap strongly at the start of use. In the case of a cylindrical container, the danger is further increased.

JP 11-349025 A JP 2000-247351 A

  The present invention provides a cylindrical synthetic resin container by blow molding having a neck rib formed radially extending on the container neck, and the body is provided with a ridge showing different resistance to the force of rotating the container. Another object is to form a synthetic resin container body.

  The present invention relates to a synthetic resin container main body having a trunk portion and a neck portion formed by two-part blow molding, and is provided with a plurality of ridges on the trunk portion and arranged vertically at 90 ° intervals on the neck portion. This is a cylindrical synthetic resin container body provided with a neck rib, in which the mating surface of the mold is an intermediate line between the neck ribs facing each other by 180 °, and the separating direction of the mold is perpendicular to the mating surface A body portion having a convex convex cross section formed from a tapered surface having a gentle slope and a steep slope, and having a shape in which both tapered surfaces can be visually recognized from the separating direction of the mold. is there. As a result, it is possible to provide a synthetic resin container characterized by having a shape and arrangement in which undercut does not occur when a blow mold is removed, and resistance to rotation can be improved.

The main solution of the present invention is as follows.
(1) In a cylindrical synthetic resin container main body having a body part and a neck part formed by two-part blow molding, a plurality of triangular ridges whose tops are located on the inner side of the circumference of the body part are provided on the body part. A cylindrical synthetic resin container main body provided with four vertical neck ribs arranged at 90 ° intervals on the neck, wherein the molding rib mating surfaces are opposed to each other by 180 °. A synthetic resin container body having an intermediate line and a direction in which the mold is separated perpendicular to the mating surface, wherein the triangular ridge provided on the trunk portion has an apex angle θ as the apex angle θ, The apex angle θ is not the same as the angle divided by a straight line perpendicular to the center line of the cylinder passing through the apex, and the apex angle θ is divided into two by the separating direction line passing through the apex. , The outer apex partial angle θa outside the center of the body cylinder, and the outer apex partial angle θa is θa ≧ A synthetic resin container body characterized in that the relationship is set to 0 °.
(2) The synthetic resin container main body according to (1), wherein a plurality of triangular ridges provided on the body are continuously provided.
(3) The synthetic resin container main body according to (2), wherein the plurality of continuous protrusions provided on the body portion are provided to face each other by 180 °.
(4) The synthetic resin container main body according to any one of (1) to (3), wherein one starting end side of the ridge is a mating surface of a mold.
(5) An inner cap that is inserted into the neck portion of the synthetic resin container body described in any of (1) to (4) in a vertical direction with respect to the neck portion, and is screwed to the inner cap. A synthetic resin container fitted with a cap consisting of a cap body.
(6) The apex angle θ of the triangular protrusion provided on the body portion forms the smaller one of the angles divided by a straight line perpendicular to the cylindrical center line passing through the apex portion. (5) The synthetic resin container according to (5), wherein the tapered surface is arranged in a direction facing the forward screwing direction of the cap.
(7) The apex angle θ of the triangular protrusion provided on the body portion forms the smaller one of the angles divided by a straight line perpendicular to the cylindrical center line passing through the apex portion. The synthetic resin container according to (5), wherein the tapered surface is arranged in a direction facing the screw reversal direction of the cap.

Furthermore, the present invention can be used in the following aspects.
(8) In the synthetic resin container described in any one of (5) to (7) above, a synthetic resin container adopting a hinged cap as a cap,
The hinged cap has an inner cap provided with a sealing film that fits directly into the container neck,
A cylindrical body for opening a seal with a cutting blade, a spout and a cap body provided with a hinged top cover for opening and closing the spout,
The inner cap and the cap body have a joint relationship by screwing, and a lock mechanism for preventing reverse rotation is formed at the screwing terminal in use.
The sealing film of the inner cap is opened by the screwing performed at the start of use,
The container body and inner cap mounting mechanism is composed of a horizontal engaging mechanism and a vertical engaging mechanism,
The horizontal engagement mechanism engages the annular projection formed on the neck of the container body and the annular projection formed on the inner surface of the cap, and is configured to be rotatable and prevent from being removed.
A synthetic resin container with a cap, wherein the vertical engagement mechanism is an engagement of a vertical rib, which is a neck rib of the container body, and a plurality of vertical ribs provided on the inner surface of the cap.
(9) Engaging the vertical ribs, which are the neck ribs of the container body, with the plurality of vertical ribs provided on the inner surface of the cap, rotate when the cap is reversely rotated and / or forwardly rotated to a certain extent. (8) The synthetic resin container with a cap according to (8), which is configured to have an allowable engagement resistance.
(10) The vertical engagement mechanism includes a vertical rib formed on the neck portion of the container main body, a main vertical rib provided at the middle portion of the neck portion, and an auxiliary vertical rib provided at the proximal end portion of the neck portion. In the normal state, the main longitudinal rib and the plurality of longitudinal ribs provided on the inner surface of the cap engage with each other and do not engage with the auxiliary rib. When the cap body is strongly pressed downward, the auxiliary rib and the inner surface of the cap are The synthetic resin container with a cap according to (8) or (9), wherein the plurality of provided vertical ribs are engaged with each other.
(11) The annular protrusion formed on the neck of the container body or the annular protrusion formed on the inner surface of the cap is formed such that one is formed in a ring shape and the other is a plurality of protrusions arranged in a dot shape. The synthetic resin container with a cap according to any one of (8) to (10).
(12) The vertical ribs formed on the neck of the container body and the plurality of vertical ribs provided on the inner surface of the cap are characterized in that the tips are tapered surfaces and the inclinations of both tapers are arranged in opposite directions. A synthetic resin container with a cap according to any one of (8) to (11).
(13) The opening prevention ring for preventing the sealing film from being opened in an unused state is interposed between the inner cap and the cap body, (8) to (12), A synthetic resin container with a cap.
(14) A cylindrical body for opening a seal with a cutting blade provided on the cap body has two cutting blades, and the two cutting blades are asymmetric with respect to the cylindrical end and / or the height of the cutting blade tip. (8) to (13) characterized in that the opening distance between the two cutting blades is different by arranging them differently, and the unsealed portion of the sealing film remains in one place by the opening operation. A synthetic resin container with a cap according to any one of the above.
(15) There are two cutting blades provided on the cylindrical body for opening the seal with the cutting blade provided on the cap body,
The two cutting blades 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 blades at 0 ° and the rotational rotation According to any one of (8) to (14), an opening state of the sealing film in which one connecting portion is formed after the breaking operation is formed by setting the relationship as follows. A synthetic resin container with a cap.
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 °
(16) The inner cap has a double cylindrical shape,
An annular projection formed on the inner surface of the cap is formed on the outer circumferential surface of the cylindrical body, and the annular projection is provided at a position below the annular projection provided on the neck of the container body when engaged, A male screw is provided on the outer periphery of the outer cylindrical body,
Further, the inner cylindrical body becomes a pouring hole after opening, and when it is not used, it is a cylinder with a short diameter and a bottom having a bottom that is a sealing film,
The cap body is a cylindrical lid body having an inner diameter formed with a female screw that is threadedly engaged with the male screw of the inner cap, and is capable of moving forward and backward while 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 interval between the two cutting blades is asymmetrically arranged with a large interval that is a large separation angle and a short interval that is a small separation angle. Has been
From the position where the tip of the protruding blade provided on the cap body breaks the sealing film of the inner cap pouring hole, the limit of the rotational approach is in a range larger than the small separation angle and smaller than the large separation angle. The cap made of synthetic resin according to any one of (8) to (15), wherein the cap is set in a screwed relationship between the inner cap and the cap body.
(17) The cap and the synthetic resin container according to any one of (8) to (16), wherein the cap and the container main body are made of a synthetic resin.

By providing the configuration as described above, the present invention has the following effects specific to the present invention.
1. When a rotational force is applied to the container, the resistance to the direction of rotation can be changed. Due to this difference in resistance, it is possible to improve the ease of attaching and detaching the cap and the resistance of the container against breakage, and the safety of the container can be improved. The function can be improved by linking the mounting structure of the cap and the directionality of the protrusions of the container body.
2. In particular, in the case of a cylindrical synthetic resin container that requires a large screwing force to incise the virgin seal at the beginning of use, the operability of wearing is improved even for a weak woman.
3. By arranging a plurality of ridges close to the mating surface of the molding die and not providing the ridges on other portions, printing can be performed without being affected by the molding mating surface. And the line of the molding joining surface which remains on the container main body surface can be made inconspicuous by providing the start end side of the protruding item located near the molding joining surface at or near the molding joining surface.
4). Whereas the holding power of the container body provided with ridges increases, on the other hand, if the cap structure adopts a safety structure that prevents slipping, the cap will not come off the container even if the cap is reversed. . No accident occurs even if the cap body is reversed without noticing the presence of the hinge cap.
5). 4. above. Even if the cap is reversed in the same manner as described above, the cap body is loosened because the allowable resistance of the rotation between the inner cap and the neck of the container body is smaller than the screw lock holding force of the cap body. There is nothing.
6). A container body by combining a container body provided with the protruding strips of the present invention in a configuration in which the inner cap provided with a seal member and a cap body provided with a cylindrical body with a cutting blade are screwed together to open the seal member Can be held stably, the force required for opening can be reduced, and the end of rotation is specified, so that the location of opening and the reliability of the uncut portion of the seal can be improved.
7). As other operational effects according to the implementation correspondence, (1) cutting is started from two places by two cutting blades, and when one of them is cut off, a cutting sound is produced, and it can be confirmed that the opening operation has been completed. 2) The use state is maintained, and it becomes difficult to reproduce the virgin state by removing the cap body and attaching the anti-opening ring again. (3) The main engagement is useful during the setting operation at the start of use. Even if it disappears, an initial setting operation can be completed by using an auxiliary engagement mechanism can be additionally mentioned.

  The present invention is a synthetic resin container provided with a cylindrical body portion having improved holdability and a rib for attaching a cap, and mainly includes a synthetic resin container body suitable for blow molding. Furthermore, it is a container combined with a cap structure that exhibits the function of the synthetic resin container body.

Each component is described below.
1. Container Body The container body is provided with a cylindrical neck at the top of a cylindrical body, and four vertical neck ribs are formed at 90 ° intervals around the neck. Projections are formed in the form of vertical streaks in the cylindrical body. The container body is made of synthetic resin and blow-molded using a two-part mold.
The vertical neck rib provided on the neck is preferably provided from the neck base to the middle. Moreover, it can also be divided up and down.
An annular protrusion is formed above the cylindrical portion forming the neck. The annular protrusion can be provided integrally in a ring shape or in a dot shape. From the viewpoint of ease of molding, an integral ring shape is preferable, and in the case of a dot shape, 1 to 4 is appropriate. The annular protrusion is formed so as to be positioned above the annular protrusion provided on the inner cap so that the engagement is completed when the cap is attached.
The annular protrusion is provided above the upper end of the neck rib. The distal end surface of the neck rib can be a tapered surface with a taper. The resistance in the rotational direction can be adjusted by the direction of the taper. This neck rib can be provided separately in the upper and lower sides, the upper side is the main neck rib that always engages, and the lower side is the auxiliary neck rib that is not engaged in a normal body or the engagement force is weak be able to. If for some reason the main neck rib fails, the auxiliary neck rib is utilized to maintain the engagement.

As the container body, a transparent bottle that can visually recognize the remaining amount is suitable. For example, a cosmetic container. The filling is liquid, powder or the like.
The synthetic resin container provided with the container body and neck of the present invention, which is blow-molded using a two-part mold, is opened by opening the mold to the left and right and then punched. Furthermore, providing four vertical neck ribs takes the vertical line passing through the central part of the ribs facing each other by 180 ° as a mating surface of the mold, and opens the mold in a direction perpendicular to it to remove the mold. In addition to this shape limitation of the container, when providing vertical stripes on the cylindrical body, the mold is separated from the shape after the molding is finished so as not to obstruct the demolding direction. It is necessary to meet the functional requirements to provide the restrictions on the manufacturing method and the ridges.
The container body of the present invention has a convex line having tapered surfaces having different inclination angles of two tapered surfaces, the steeply inclined surface is directed to the center line side in the demolding direction, and the gentle inclined surface is visually viewed from the demolding direction. By adopting such a shape, there is no hindrance to demolding, and it is possible to give directionality to the resistance force with respect to the rotation direction of the body portion. When this body is divided into 90 ° circular arcs, the direction of reverse direction can be obtained in the left and right divided arcs from the demolding direction. By increasing the resistance to one of the reverse rotations, or by providing it in all directions, it is possible to exhibit compatibility in both rotation directions.
The number of ridges can be one or several at a time, or a large number can be arranged all around. In consideration of the front face of the container, it is preferable to provide it at a position where it can be easily pressed against rotation. If the ridges are placed close to the mating surface of the mold and no ridges are provided in the center, the part that allows decoration such as printing in the center is obstructed by the marks on the mold. You can take a large without. When the vicinity of the molding mating surface or the starting edge of the slope of the ridges is set to the molding mating surface, in particular, molding marks remaining on the container surface can be made inconspicuous, and the beauty of the container can be improved. Moreover, the position and length which are easy to hold down are set for the height direction of a protruding item | line. For example, it can be arranged such that it extends over the entire length, or is shifted to the middle, upper side or lower side.
Note that the blow molding itself applicable to the present invention is omitted because a general molding means can be used as a means for producing a cylindrical synthetic resin container.

FIG. 4 shows a schematic view of the container in plan view.
The body 24 and the neck 21 of the container body 2 are arranged concentrically with the center O. In the neck portion 21, four neck ribs 23S, 23N, 23E, and 23W are radially arranged at 90 ° intervals. The neck rib 23S is a front side, the neck rib 23N is a back side, and left and right neck ribs 23E and 23W. A section divided into four by each neck rib is defined as an I plane to an IV plane counterclockwise starting from the neck rib 23S. The die-moulding surface of the blow molding divided into two is assumed to be AB, which is an intermediate line between the left and right neck ribs 23E and 23W passing through the center O. With this setting, the mold is removed after the blow molding is completed, and the mold is opened and separated in order to take out the container body. The direction lines passing through are defined as demolding center lines f0 and f′0. In this schematic diagram, three ridges 25 are provided on the II and IV planes, close to the mating surface. The ridges 25 are provided with a steeply tapered surface b on the demolding center line f0 side and a gently inclined taper surface a on the opposite side. FIG. 5 shows an enlarged portion of the ridge provided on the IV surface. Assuming that the triangular apex of the ridge is Pn, and a demolding direction line fn passing through the apex Pn is assumed, and the angle Pnθa formed by the demolding direction line fn and the gently inclined taper surface a is given as “angle Pnθa ≧ 0 Set to “°”. As a result, the gently inclined taper surface “a” is not harmful to the demolding direction. The angle Pnθb formed between the radial line PnR passing through the apex Pn and the center O and the steeply tapered surface b can be freely set without any restrictions on molding as long as the steeply tapered surface can be formed in this illustrated example.

The gentle slope or the steep slope is such that the inclined face located on the side that becomes a large angle when the apex angle Pnθn, which is the inner angle of the apex Pn of the triangular ridge, is divided by the radial line PnR becomes a gently inclined tapered face. The inclined surface located on the angle side becomes a steeply tapered surface. When the ridges are formed close to the demolding center lines f0 and f′0, the inclination of the tapered surface can be formed on either the left or right side of the top. It can also be formed so as to straddle the demolding center lines f0 and f′0. Also, the top of the ridges can be chamfered to soften the touch.
The ridges can be provided continuously from the middle of the tapered surface, or can be provided at intervals.
As a restriction on demolding, it is necessary to set so that the tapered surface of each ridge can be visually recognized or overlapped when viewed from the demolding direction line passing through the top of the ridge.
By forming such a ridge, an anisotropy can be imparted to the resistance to the direction in which the container is rotated, and a container body that does not hinder blow-molding can be formed.

2. Whole Container Configuration Example A container is composed of a container body and a cap attached to the container body neck. The cap is a type that is attached so as to be pushed into the neck of the container, and the neck rib provided on the neck and the vertical rib provided on the inner surface of the cap are fitted together, and the cap rotates. A cap of a type that is regulated and engages with an annular recess provided on the inner surface of the cap and an annular projection provided on the container neck is suitable.
Furthermore, the cap is suitable for a double-structure cap in which the contents are filled from the opening of the neck of the container, and then crowned on the inner cap formed with a small spout, and the cap body is crowned on the inner cap. Yes. The cap having such a configuration is generally used because it is excellent in filling workability and the spout used by the user can be made small in accordance with the actual situation. Further, since the inner cap is crowned in the driven state, it is difficult to remove it, and it is difficult for the user to remove it accidentally, and it is also difficult to refill it illegally. The cap body is often screwed, and the cap portion that is generally used by the user often involves opening and closing of the spiral.

In addition, since the double-structured cap has two engagement positions between the container main body and the inner cap and between the inner cap and the cap main body, it is important to consider the engagement force at the two positions. .
For example, the relationship between the engagement force between the container body neck and the inner cap and the engagement lock force between the inner cap and the cap body is configured so that the former is weaker than the latter. Engagement between the ribs in the vertical direction can be realized by causing the cap body to be broken or disengaged by rotational force when the cap body is excessively rotated.

3. Example of 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.
3-1 Example of Inner Cap The inner cap has a sealed outflow hole and is attached to the neck of the bottle container. It has a double cylindrical shape and is mounted on the neck of the bottle. The inner cylinder forms an outflow hole and seals the bottom to form a seal member.
An annular protrusion is formed in the horizontal direction on the inner peripheral surface of the outer cylinder, and a number of vertical ribs are provided below the annular protrusion. The annular protrusion is formed at a location located below the annular protrusion on the container body neck side. A plurality of vertical ribs are formed on the inner peripheral surface of the cylinder below the annular projection. The vertical rib on the container body neck side is inserted between the vertical ribs, and the horizontal rotation is prevented to establish the engagement relationship.
A taper can be provided on the front end surface of the vertical rib. The resistance in the rotational direction can be adjusted by changing the shape such as the direction and size of the tapered surface. Of course, this resistance adjustment in the rotational direction is finally determined by the mutual relationship with the neck rib of the container body.
A small convex annular projection can be provided on the top of the annular projection to form a recess between the double projections. By holding the annular projection of the container neck in this recess, the normal position of the inner cap can be determined. By this positioning, a gap can be formed above the top of the container neck.

A male screw is formed on the outer periphery of the outer cylinder of the inner cap. If this male thread is a double thread, it is possible to shorten the coupling distance and obtain strength.
Also, when the cap body cannot be removed after the cap body is first set at the start of use, an engaging claw is provided at the base end of the outer periphery, and the opposing engaging claw provided on the container body side And a locking function for preventing reverse rotation of the screw. Two engaging claws can be provided at a small interval. In this case, the engaging claws of the cap body are fitted into the small interval to perform a locking function in the forward and reverse rotation directions. An engagement mark can be provided on the lowermost flange for alignment with the container body.
When the inner cap is provided with a sealing film as a sealing member, it can be bent 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.

3-2 Example of Cap Body Many cap bodies are screwed into the inner cap. Further, a hinge cap can be provided on the top of the cap body to change the initial setting for use and the normal use state. Although any form is possible, the type suitable for the present invention is a cap of a type that requires some rotational force.

For example, a screw-type cap body in which a cap with a hinge is provided on the top and a cutting blade for virgin seal incision is formed on the inner surface will be described below.
The cap body is a substantially cylindrical body, and includes a spout at the tip, a cap with a hinge that opens and closes the spout, and a female screw for screwing into the inner cap on the inner peripheral surface. An engaging claw that opposes the engaging claw of the inner cap is provided at the lower end of the inner peripheral surface of the cylindrical blade for incision. An engagement mark can be provided at the lower end of the outer periphery of the cylindrical portion.
The cap body is screwed into the inner cap, and the cylindrical blade cuts the sealing film by screwing, and the opening is completed at the same time as the screwing is completed. Further, the cap body is locked at the screwing end to form a reverse rotation prevention mechanism. The configuration of the cylindrical blade for incising the sealing seal is as follows.
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 trajectory 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 shaped to bias the opening piece downward, the posture of the opening 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 when the bladed cylinder is further entered from the cutting end point, the connection is pinched by the outer peripheral surface of the bladed cylinder, and the opening piece is directed 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 seal with a cutting blade, two cutting blades are provided, the opening distances by the two cutting blades are different, and there is one uncut portion of the seal after the opening operation Remaining cap with seal opening mechanism.
(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 edges are arranged at the tip of the cylindrical body in asymmetry, and have a circumferential positional relationship with respect to the axis of the cylindrical body and a relationship of rotational rotation with the tip of one of the cutting blades being 0 °. By setting as follows, the cap in which the unsealed state of the sealing film in which one connecting portion is formed after the breaking operation is formed.
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. .

3-3 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 a cosmetic container.

3-4 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.

FIG. 1 shows an external view of a container body.
FIG. 2 shows an external view of the entire container fitted with a cap.
FIG. 3 shows a cross section of FIG. 2A-A.
FIG. 4 shows the schematic view of the container in plan view.
FIG. 5 is an enlarged view of one of the ridges 25a displayed in FIG.
FIG. 6 shows a partially enlarged view of a state where the cap of the first embodiment is mounted on the container body. FIG. 6A shows an unused state, and FIG. 6B shows a state where the seal is opened.
7 shows a hinged cap body, (a) is a sectional view of the hinged cap body, (b) is a bottom view, FIG. 8 (a) is an external view of the hinged cap body, and FIG. Sectional drawing of the state which opened the cap with a hinge is shown.
FIG. 9 shows the inner cap, (a) is a top view, (b) is a cross-sectional view, (c) is a bottom view, and (d) is an external view of the inner cap.
FIG. 10 is a partially broken sectional view of the anti-opening ring. FIG. 11 is a diagram showing the engagement relationship of the present invention. (A) is the figure which the engagement setting completed, (b) shows the state in the middle of the setting of a cap main body.
FIG. 12 shows a state diagram of the cap body and the inner cap set.
FIG. 13 shows the state of the cutting blade as viewed from the bottom.
14A and 14B are diagrams illustrating the opening operation of the cutting blade according to the present embodiment. FIG. 14A is a position of the cutting blade in an unused state, FIG. 14B is a cutting start position, and FIG. Indicates the cutting end position.

FIG. 1 shows an external view of a container body.
The container main body is illustrated in FIG. 1, 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 is manufactured by blow molding using PET or the like. The container body 2 is provided with a neck portion 21 formed by narrowing a shoulder portion, and an annular protrusion 22 and a neck rib 23 are formed on the neck portion. Four neck ribs 23 are formed around the periphery at intervals of 90 °. Further, the main neck rib 23a and the auxiliary neck rib 23b may be divided into upper and lower parts. The figure shows two separate types, but they can be integrated continuously. When the main neck rib 23a is broken due to excessive rotation in the unused state when divided into two upper and lower members, the auxiliary rib rib 23b and the inner cap are engaged with the vertical rib 36 when the main neck rib 23a is damaged. It can be set to the initial state of use. In particular, since there is a gap at the top of the container neck, it is possible to increase the engagement force with the auxiliary neck rib 23b by firmly pushing the cap body, and the setting is ensured.
The annular protrusion 22 is formed in a continuous ring shape, but a plurality of dot-like protrusions may be provided. In the blow molding, there are restrictions on the punching of the neck ribs 23. Therefore, when the plurality of vertical ribs are provided, four neck ribs 23 provided at intervals of 90 ° are desirable. The same applies to the case where the annular protrusion is a point protrusion.

On the body portion 24 of the container main body, ridges 25 are provided at two locations as a set of three bars in the vertical direction. The ridge 25 has an irregular cross section, and is provided with a steeply tapered surface and a gently inclined taper surface.
FIG. 2 shows the container 1 of this embodiment in which a cap 9 is attached to the container body 2. FIG. 3 shows a cross section of the body portion of the container body 2 taken along the line AA. The ridges 25 are formed in three stripes so as to face each other by 180 °.
FIG. 4 is a schematic view of the container body illustrated in FIG. 1 in plan view. The body 24 and the neck 21 of the container body 2 are arranged concentrically with the center O. In the neck portion 21, four neck ribs 23S, 23N, 23E, and 23W are radially arranged at 90 ° intervals. It should be noted that, in this illustration, the description of the state divided into upper and lower parts is omitted. The neck rib 23S is a front side, the neck rib 23N is a back side, and left and right neck ribs 23E and 23W. A section divided into four by each neck rib is defined as an I plane to an IV plane counterclockwise starting from the neck rib 23S. The die-moulding surface of the blow molding divided into two is assumed to be AB, which is an intermediate line between the left and right neck ribs 23E and 23W passing through the center O. With this setting, the mold releasing direction for removing the mold after blow molding and opening the mold in order to take out the container main body is the directions f0 and f′0 perpendicular to the mold matching surface AB. In this schematic view, three ridges 25 are provided on the streak, which are the II and IV planes, close to the mating surface side.
The ridges 25 are provided with a steeply tapered surface b on the demolding center line f0 side and a gently inclined taper surface a on the opposite side. FIG. 5 shows an enlarged portion of the ridge provided on the IV surface. Assuming that the triangular apex of the ridge is Pn, and a demolding direction line fn passing through the apex Pn is assumed, and an angle Pnθa formed by this demolding direction line fn and the gently inclined taper surface a, “angle Pnθa ≧ 0 Set to “°”. As a result, the gently inclined taper surface “a” is not harmful to the demolding direction. The angle Pnθb formed between the radial line PnR passing through the apex Pn and the center O and the steeply tapered surface b can be freely set without any restrictions on molding as long as the steeply tapered surface can be formed in this illustrated example.

The gentle slope or the steep slope is such that the inclined face located on the side that becomes a large angle when the apex angle Pnθn, which is the inner angle of the apex Pn of the triangular ridge, is divided by the radial line PnR becomes a gently inclined tapered face. The inclined surface located on the angle side becomes a steeply tapered surface. Also, the top of the ridges can be chamfered to soften the touch.
The ridges can be provided continuously from the middle of the tapered surface, or can be provided at intervals.
As a restriction on demolding, it is necessary to set so that the tapered surface of each ridge can be visually recognized or overlapped when viewed from the demolding direction line passing through the top of the ridge.
By forming such a ridge, an anisotropy can be imparted to the resistance to the direction in which the container is rotated, and a container body that does not hinder blow-molding can be formed.
In this example, the resistance increases when the cap is rotated in the reverse direction, and the slip resistance increases when the cap is opened when the cap is attached and detached by screwing. When it is provided on the I plane and the III plane in line symmetry with the demolding center lines f0 and f'0, the resistance when tightening is increased. When it is provided on each surface of I to IV, the degree of force application can be adjusted depending on the place where the finger is pressed. In addition, since a large clean surface with no protrusions or molding marks can be taken near the demolding center lines f0 and f′0, surface decoration such as printing such as description of design and contents can be performed cleanly. . Since the starting end of the gently sloping taper of the ridge is located in the vicinity of the molding mating surface, molding marks are not noticeable, and the entire container can be finished cleanly.

FIG. 6 shows a partially enlarged view of the state where the cap of the present embodiment is mounted on the container body. FIG. 6A shows an unused state, and FIG. 6B 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 put on the neck 21 of the container body 2 in this order. In the inner cap 3, the neck portion of the bottle container enters the gap 35, and the annular protrusion 22 provided on the neck portion of the bottle container body 2 is accommodated in the annular recess 34a of the inner cap. An annular protrusion 34b provided on the inner surface is positioned and engaged to prevent the protrusion. The vertical ribs 23a and 23b formed on the neck base portion of the bottle container and the vertical ribs 36 provided on the inner surface of the base portion 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 screwing, and the cylindrical cutting blade 70 is prevented from descending and coming into contact with the sealing film 7.
The inner cap 3 is crowned on the neck portion 21 of the container body 2 and pressed firmly to complete the engagement between the two, and the two annular projections provided horizontally are prevented from being pulled out and provided on the inner cap. The vertical ribs on the neck side of the container enter between the numerous vertical ribs, and thus the rotation is restricted. Assembling in the practical process, after filling the bottle container with the contents, push the cap with the inner cap, anti-opening ring and cap body set into the neck of the bottle container to remove the unused container with a cap. Finalize.

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. 6B, this Δd is formed to have a curvature that contacts 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. 7 shows a hinged cap body, (a) is a sectional view of the hinged cap body, (b) is a bottom view, FIG. 8 (a) is an external view of the hinged cap body, and FIG. Sectional drawing of the state which opened the cap with a hinge is shown.
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. Two outer engagement claws 47 are provided on the inner side of the base end of the cylindrical portion 41 so as to oppose each other by 180 °, and engage with the inner engagement claws 38 provided on the base end portion of the inner cap. Constitutes an engagement relationship for preventing reverse rotation. In addition to the engaging claws 47, two engaging convex portions 44 are provided to oppose each other by 180 °. This engagement convex part 44 contacts the high step part 39a provided in the inner cap, and fulfills the forward rotation preventing function. An engagement mark 45 can be provided on the outer peripheral base end portion of the cylindrical portion 41 corresponding to the outer engagement claw 47. When this engagement mark matches the engagement mark provided on the inner cap, it can be confirmed that the mounting is completed.

  FIG. 8A shows the external appearance of the cap body 4 as viewed from the side. Engagement marks 45 are slightly inflated on the side surfaces. 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 cover 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.

  A configuration example of the cylindrical cutting blade is shown in FIG. 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 portion 78, and a cutting edge tip portion 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 °.

The configuration of the inner cap will be described with reference to FIG. FIG. 9 shows the inner cap, (a) is a top view, (b) is a cross-sectional view, (c) is a bottom view, and (d) 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 outer base portion of the outer cylinder portion 31 is provided with an inner engagement claw 38 and an engagement mark 38c that engage with the protrusion of the cap body or the opening prevention ring. In addition, a small engagement claw 38 b that opposes the engagement claw 38 with a small gap is provided, and the small gap between the two claws forms an engagement recess 37. The outer engagement claw 47 provided on the cap body gets over the bulging portion of the back portion of the inner engagement claw 38 and is stored in the engagement recess 37 to be a set state of use. The outer engagement claw 47 is prevented from being reversely rotated by being engaged with the inner engagement claw 38, and the cap body does not come off from the inner cap in the used state. Further, a high step portion 39a is provided, which abuts against the engaging convex portion 44 of the cap main body and fulfills the function of preventing over-rotation in the positive direction. A large number of vertical ribs 36, 36..., An annular recess 34 a and an annular projection 34 b are formed on the inner surface of the outer cylinder portion 31, and the vertical ribs 23 (main vertical ribs 23 a, auxiliary The vertical ribs 23b) are engaged with the annular protrusions 22 so as to have a crowned relationship in which the removal and rotation are prevented. The front end surface of the vertical rib 36 is formed in a tapered inclined surface 36a.

  FIG. 10 illustrates an opening 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. In order to restrict the engagement position with the inner cap and the cap main body, a recess 57 and an unsealing prevention ring protrusion 54 are formed for engagement.

  The engagement relationship between the cap of the present embodiment and the container body will be described. The inner cap comes into direct contact with the container body, and the cap body is covered with the inner cap. Since the inner cap and the cap body are in a screwed relationship, the joint mechanism between the inner cap and the container body neck is arranged so that the convex annular members in the horizontal direction are arranged vertically so as to prevent the rotation. The vertical ribs provided on both sides are complicated. The cap body is screwed and locked at the screwing end point. However, if the cap body is accidentally turned in the direction of loosening, the lock may be destroyed and the stored contents may leak. is there. In order to prevent such an accident, in this embodiment, an inclined surface is formed by tapering the front end surface of the vertical rib. By arranging the inclined surfaces of the two vertical ribs to face each other, when the cap is turned strongly in the direction to loosen the screwing, the cap body is designed to have a smaller engaging force than the locking holding force of the screwing. It is set as the structure which can prevent coming off from an inner cap. In addition, the engagement force in the forward rotation direction is larger than the engagement force in the reverse rotation direction. However, if the cap is designed to be strong enough to break the vertical rib when the cap is rotated forward with an extremely large force, the thread will break. Even if such a rotational force is applied, the rib structure of the inner cap and the container neck is absorbed, and an accident in which the cap comes off and can be prevented can be prevented. In particular, the present embodiment is also characterized in that a part of the seal is left unseparated, and the opening operation is defined by the screwing amount. It is important to limit excessive screwing because there is a risk of disconnection.

  Further, when not in use, an anti-opening ring is interposed between the inner cap and the cap body. At the start of use, the cap body is removed, the anti-opening ring is removed, and the cap main body is screwed into the outer periphery of the inner cap again. This completes the opening of the sealing member and the mounting of the cap. If the cap body is removed after it is once used, there is a risk of unauthorized opening such that the unsealing ring is reinserted and the cap body is put on the cap body. In this embodiment, in addition to the configuration that is locked when the cap body is attached in use, the engagement force between the vertical ribs is smaller than the lock holding force when a strong reverse force is applied. The inner cap and the container neck do not rotate and the cap does not come off. Therefore, this embodiment also has an unauthorized opening prevention function.

A specific configuration will be described with reference to FIGS.
Fig.11 (a) has shown the engagement relationship of the state set to the use state. On the innermost side, a cylindrical neck portion 21 of the bottle container and two main longitudinal ribs 23a provided on the neck portion are provided. A tip end of the main vertical rib 23a is formed on a tapered inclined surface 23c. An inner cap is inserted into the neck, and the main vertical rib 23a is set between a large number of vertical ribs 36 provided on the inner peripheral surface of the inner cap. The ends of the vertical ribs 36 are also formed on an inclined surface 36 a that is tapered. These inclination directions are in an opposing relationship, and when the cap in the set state is reversed to be removed, the engagement is easily released along the inclined surface. Since a large number of the vertical ribs 36 are provided, even if one vertical rib is overcome, the next vertical rib 36 becomes a resistance, so that free rotation does not occur.

  In the lock configuration of the engagement between the inner cap and the cap body, the inner engagement claw 38 provided on the outer periphery of the inner cap and the outer engagement claw 47 on the cap body side are engaged in the reverse rotation preventing direction. The engaging convex portion 44 provided on the cap body comes into contact with the high step portion 39a provided on the inner cap to prevent rotation. In this embodiment, a small engagement claw 38 b is provided opposite to the inner engagement claw 38, and an engagement recess 37 is formed therebetween. The outer engagement claw 47 is fitted into the engagement recess.

FIG. 11B shows a state during the operation at the start of use. It is the situation of the end point that removes the unsealing prevention ring and screws the cap body. Rotating in the clockwise direction, the back surface of the outer engagement claw 47 comes into contact with the back surface of the inner engagement claw 38. Complete. On the other hand, the engaging convex portion 44 of the cap body comes into contact with the high step portion 39a of the inner cap to prevent rotation. In this example, the main configuration for preventing overturning is in contact with the engagement convex portion 44 and the high step portion 39a. If it is turned in strongly, the vertical rib is designed to be bent to the extent that the inner rib and the cap body are not screwed by this contact, and the safety is improved. .
For example, specifically, when the breaking torque of the engagement between the vertical ribs in the direction in which the caps are reversed after setting is set to 3 kgf / cm, and the screw is excessively tightened in the forward direction, the engagement between the ribs is The breaking torque is set to 10 kgf / cm. In addition, when turning the cap main body during initial use setting, the torque over the claw of the inner cap is set to 4 kgf / cm, and the engaging torque of the claw after setting is set to 10 kgf / cm. By setting in this way, it can be easily confirmed that the normal adult can be initially set by the resistance to climb over when the cap body is screwed in. At the same time, if it is accidentally rotated in the reverse direction, Since the engagement force between the ribs of the inner cap is smaller than the claw engagement force between the inner cap and the cap body, it is possible to prevent the risk that the cap body will come off as a result.
Further, it can be visually confirmed that the setting is completed in a state where the respective engagement marks 45 and 38c coincide with each other.
FIG. 12 is a schematic diagram showing a set state of the cap main body and the inner cap in FIG.

In this embodiment, the virgin state is clarified by interposing the anti-opening ring, and there is no mark left after the anti-opening ring is removed because the anti-opening ring is not provided with a piece to be separated. It's beautiful. Moreover, since it is not an overcover for preventing opening, the design in use can be displayed as it is.
As the cap body is screwed in, the seal is opened and a part of the cut sealing film remains, so that the seal piece is held at a specific position and the seal piece is clogged or bottled. It won't float inside.
In addition, even if the cap is strongly reversed, the longitudinal engagement resistance between the inner cap and the container neck is weakened, so that the cap body rotates freely without coming off. Furthermore, in the case of strong forward rotation, the screw rib structure can be prevented from being broken by bending the vertical rib.
In addition, the inner cap and the neck of the container body separate the horizontal engagement and vertical engagement mechanisms, and are also divided into upper and lower parts. Has no effect.
The present embodiment is a container with a cap whose appearance and safety are enhanced by organically relating each configuration.

  The opening operation of the seal is as follows. This will be described with reference to FIG. FIG. 14 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. 14A shows an unused state in which an anti-opening ring is loaded, and FIG. 14B shows a state where the anti-opening ring is removed and the cutting blades A, B 71 and 72 start cutting the sealing film 7. FIG. 14 (c) shows a state in which the cutting has been completed leaving the connecting piece 79. 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. 14A 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. 14 (b) shows that the flat portion of the two cutting blades penetrates the sealing film and is cut at a position where the anti-opening ring is removed and re-screwed 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. 14 (c) shows a state in which the cutting has been completed after further 135 ° rotation. 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. 14B 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. 14B (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 portion 78 of the cutting edge B72 in FIG. 14A (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 cutting edge A71 + rear end position 210 ° of flat portion 78 of 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.

In this embodiment, when removing the anti-opening ring and the cap body by reverse rotation at the start of use, the steeply tapered surface provided on the ridge of the container body exhibits resistance to rotation, and the opening ring is removed. After that, when the virgin seal is incised while screwing the cap body, the gently sloping tapered surface of the ridge functions as a slip stopper. The present embodiment is a container with a cap whose appearance and safety are enhanced by organically relating each configuration.
In addition, although the example which provided the hinge cap was shown in a present Example, it is good also as a form which attaches and detaches a cap by rotating the screwing of a cap main body forward / reversely, In that case, the convex strip of a present Example is a cap. Since it exerts a more effective effect against rotation in the direction of removing the cover, it is easy to open even if it is tightened tightly.

A second embodiment will be described with reference to FIGS. 15 and 16. Parts not mentioned are in common with the first embodiment in principle.
FIG. 15: shows the elements on larger scale of the state which attached the cap of Example 2 to the container main body. (A) is an unused state, (b) has shown the state which opened the seal | sticker. 16 is a cross-sectional view of each component shown in FIG. (A) is a cross-sectional view of the container neck, (b) is a cross-sectional view of the inner cap, (c) is a cross-sectional view of the cap body, and the right half (c1) shows a state in which an opening ring is inserted. Yes.

The second embodiment is different from the first embodiment in that an upper annular projection 34c is also provided as an annular projection on the upper side of the annular recess 34a of the inner cap, and the annular projection provided on the annular recess 34a and the neck of the container body. 22 and the auxiliary vertical ribs 23b provided on the neck of the container are provided horizontally, and in the normal shape, the vertical ribs 36 of the inner cap and the auxiliary vertical ribs 23b are not engaged with each other. This is a structure that engages when the main body 4 is strongly pushed.
As shown in (c1) of FIG. 15 (a) and FIG. 16 (c), when the anti-opening ring 5 is strongly inserted and rotated in the positive direction, the main longitudinal ribs 23a provided on the container neck are provided. There is a risk of destruction. In such a case, even if the anti-opening ring 5 is removed at the start of use and the cap body 4 is re-screwed, there is a risk that the cap body 4 may idle in the normal direction. At this time, if the cap main body 4 is strongly pressed against the container side, the auxiliary vertical ribs 23b and the vertical ribs 36 are engaged, and the cap body 4 can be assembled in a set state to start use.

The mechanism for assisting this forcible assembly is the upper annular protrusion 34c provided on the inner cap and the upper gap 35b formed above the top 21b of the container neck. Since the upper annular projection 34c exists, the inner cap 3 is supported by the annular projection 22 of the container neck and does not fall. In addition, by this support, the upper gap 35b exists above the top 21b of the container neck, and the relationship in which the vertical rib 36 of the inner cap and the auxiliary vertical rib 23b are not engaged is normally maintained.
As described above, when the main vertical ribs 23a are broken and it becomes difficult to engage with the vertical ribs 36, the inner cap 3 is made to have an allowance for the upper gap 35b by strongly pressing the cap body 4 against the container. The lower vertical side of the vertical rib 36 and the auxiliary vertical rib 23b provided on the container neck are engaged with each other. The upper annular protrusion 34c has a convex shape smaller than that of the annular protrusion 34b to increase or decrease the pressing resistance. In addition, about the content which is common in Example 1, it omits in order to avoid duplication.

  In the second embodiment, it is possible to provide a container with improved ability to cope with an unexpected situation when the first set failure at the start of use occurs. In particular, when the auxiliary vertical rib and the vertical rib of the inner cap are engaged and rotated in the forward direction, the necessity of stably holding the container main body is increased, so that the ridge functions effectively.

  In addition, although the example which provided the hinge cap was shown in a present Example, it is good also as a form which attaches and detaches a cap by rotating the screwing of a cap main body forward / reversely, In that case, the convex strip of a present Example is a cap. Since it exerts a more effective effect against rotation in the direction of removing the cover, it is easy to open even if it is tightened tightly.

The external view of a container main body is shown. The external view of the whole container equipped with the cap is shown. 2A-A shows a cross section. A schematic view of the container in plan view is shown for reference. It is the figure which expanded a part of protruding item | line displayed in FIG. The partial enlarged view of the state which mounted | wore the container main body with the cap of a present Example is shown. (A) is an unused state, (b) has shown the state which opened the seal | sticker. The hinged cap body is shown, (a) is a sectional view of the hinged cap body (b) is a bottom view. (A) is an external view of a cap main body with a hinge, (b) shows sectional drawing of the state which made the cap with a hinge open. An inner cap is shown, (a) is a top view, (b) is a sectional view, (c) is a bottom view (d), and an outer view of the inner cap. A partially broken sectional view of the anti-opening ring is shown. It is a figure which shows the engagement relationship of this invention. (A) is the figure which the engagement setting completed, (b) shows the state in the middle of the setting of a cap main body. The state figure of a cap body and an inner cap set is shown. The figure which looked at the state of the cutting blade from the lower surface is shown. The figure which shows opening operation | movement of the cutting blade of a present Example, (a) shows the position of the cutting blade of an unused state, (b) shows the cutting start position, (c) shows the cutting end position. The elements on larger scale of the state which mounted | wore the container main body with the cap of Example 2 are shown. (A) is an unused state, (b) has shown the state which opened the seal | sticker. It is sectional drawing of each structural member shown by FIG. (A) is a cross-sectional view of the container neck, (b) is a cross-sectional view of the inner cap, (c) is a cross-sectional view of the cap body, and the right half (c1) shows a state in which an opening ring is inserted. Yes.

Explanation of symbols

1 Bottle container
2 Container main body 21 Neck part 22 Annular projection part 23 Neck rib 23S, N, E, W Neck rib 23a Main longitudinal rib 23b Auxiliary neck rib 23c Inclined surface 24 Trunk part 25 Projection

3 inner cap 31 outer cylinder part 32 inner cylinder part 33 male thread 34a annular recess 34b annular projection 35 gap 35b upper gap 36 vertical rib 36a inclined surface 37 engagement recess 38 inner engagement claw 38b inner engagement small claw 38c engagement Mark 39a High section

4 Cap body 41 Cylindrical part 42 Female screw 43 Cylindrical lower end 44 Engaging convex part 45 Engaging mark 47 Outer engaging claw
5 Opening prevention ring 54 Opening prevention ring convex part 57 Concave part

6 Hinge cap 61 Hinge 62 Plug 63 Knob 64 Top lid 65 Outlet

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 part 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

9 Cap f Demolding direction line Pn Top

Claims (7)

In a cylindrical synthetic resin container body having a body and a neck formed by two-part blow molding,
A cylindrical shape in which a plurality of triangular ridges having apexes located on the inner side of the circumference of the body portion are provided on the body portion, and four vertical neck ribs arranged at intervals of 90 ° are provided on the neck portion. A synthetic resin container body,
A synthetic resin container body in which the mating surface of the molding die is an intermediate line of the neck ribs facing each other by 180 °, and the direction in which the mold is separated is perpendicular to the mating surface, and the triangular shape provided on the body portion In the ridges, the inner angle of the apex is the apex angle θ, the apex angle θ is not the same as the angle divided by the straight line perpendicular to the cylindrical center line passing through the apex, and the apex angle θ passes through the apex. When the apex angle is divided into two by the mold separation direction line, the outer apex partial angle θa outside the center of the body cylinder is set, and the outer apex partial angle θa is set to have a relationship of θa ≧ 0 °. A synthetic resin container body.   The synthetic resin container main body according to claim 1, wherein a plurality of triangular protrusions provided in the body portion are continuously provided.   The synthetic resin container main body according to claim 2, wherein the plurality of continuous ridges provided on the body portion are provided to face each other by 180 °.   The synthetic resin container main body according to any one of claims 1 to 3, wherein one starting end side of the ridge is a mating surface of a molding die.   An inner cap that is inserted into the neck portion of the synthetic resin container body according to any one of claims 1 to 4 in a longitudinal direction and attached to the neck portion, and a cap body that is screwed to the inner cap. A synthetic resin container with a cap.   The apex angle θ of the triangular ridge provided on the body portion is a taper surface that forms the smaller one of the angles divided by a straight line perpendicular to the cylindrical center line passing through the apex portion. The synthetic resin container according to claim 5, wherein the container is arranged in a direction facing the screwing forward rotation direction of the cap.   The apex angle θ of the triangular ridge provided on the body portion is a taper surface that forms the smaller one of the angles divided by a straight line perpendicular to the cylindrical center line passing through the apex portion. The synthetic resin container according to claim 5, wherein the container is arranged in a direction facing the screw reversal direction of the cap.