JP2602972Y2 - Synthetic resin cap with tamper-resistant band - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a synthetic resin cap with a tamper-resistant band.

[0002]

2. Description of the Related Art Hitherto, a cap with a tamper-evident band which is known to be opened due to breakage of a tamper-evident band (tamper evidence band) provided at the lower end of a skirt wall of a cap has been frequently used in food containers and the like. In addition, various forms of the tamper-resistant band (hereinafter, simply referred to as TE band) have been proposed. T
In the form of the E band, a notch is formed at a substantially equal pitch at a tip of a flap portion provided to be inwardly foldable from a lower end of an inner peripheral portion of the TE band, and flap pieces are formed apart from each other in a circumferential direction (for example, JP-A-3-69460, JP-A-3-69460
Japanese Patent Application Laid-Open No. Hei 2-296666) and those having a plurality of tab-shaped flap pieces which are spaced apart in the circumferential direction on the inner periphery of a TE band (for example, Japanese Patent Application Laid-Open No. 2-296666).
These TE bands resist the upward movement of the TE band by engaging the ends of the flap pieces, which are spaced apart in the circumferential direction, with the annular jaw provided on the outer periphery of the neck of the container when opening, from below. When the TE band is separated from the skirt wall, it can be determined that the TE band has been opened.

However, these caps have a slight gap between the tip of the flap piece and the outer periphery of the neck of the container when the cap is closed, and the flap piece is made of an elastic material. Raising the flaps to disengage the flap pieces from the container jaws can lead to unauthorized opening and tampering without disconnecting the TE band. Alternatively, if the engagement of the flap piece with the annular jaw of the container is weak, the so-called slip-through phenomenon, in which the TE band is opened as it is without being separated, rarely occurs.

[0004]

[Problem to be solved by the invention]
In order to solve the above problem of the band, the flap piece is raised by inserting a device such as a bottle into a synthetic resin cap with a tamper-resistant band in which the flap piece tip is circumferentially separated. Or the gap between the tip of the flap piece and the outer periphery of the neck of the container is prevented to prevent the flap piece from turning over, and the flap piece is securely engaged with the annular jaw of the container, so that it can slip through easily. It is an object of the present invention to provide a tamper-resistant band-equipped synthetic resin cap capable of reliably preventing unauthorized opening without occurrence of a cap.

[0005]

According to the present invention, a synthetic resin cap with a tamper-resistant band is provided at a lower end of the skirt wall with a cap body including a skirt wall and a top wall formed with screws to be screwed into a container. A tamper-resistant band is integrally formed with a tamper-resistant band provided so as to be separable, and the tamper-resistant band is a synthetic resin cap having a flap piece that is inwardly foldable and whose tip is circumferentially separated on an inner peripheral wall of the tamper-resistant band. A state in which the flap piece is folded between the flap pieces on the inner circumference of the tamper-resistant band so as to prevent an instrument from being inserted between the flap and the outer periphery of the container mouth and neck to prevent unauthorized opening. By adopting a configuration in which obstructing pieces are formed facing both sides of the flap piece so as to close both sides of the flap piece, a device such as a pin is inserted into the flap piece. Prevents cause up pieces could be obtained synthetic resin cap with tamper band can reliably prevent unauthorized unplugging. Further, the synthetic resin cap with a tamper-resistant band of the present invention is provided so as to be separable at a lower end portion of the skirt wall and a cap body composed of a skirt wall and a top wall formed with screws to be screwed into the container. In a synthetic resin cap having a flap piece integrally formed with a tamper-resistant band and capable of being folded inward on the inner peripheral wall of the tamper-resistant band and having a distal end spaced apart in the circumferential direction, a state in which the flap piece is folded inward With
Between the back of the wrap piece and the tamper-resistant band
Inner circumference of the tamper-evident band to prevent insertion
A flap piece is formed between the flap pieces , and a flange is formed at the tip of the flap piece to protrude in the outer circumferential direction of a container mouth and neck portion where the cap is mounted in a state where the flap is folded. By adopting the configuration, it is possible to insert a device such as a pin and raise the flap piece.
Thereby reliably prevented, could be obtained synthetic resin cap with tamper band to reliably prevent unauthorized unplugging without Suppo missing etc. have Okoshira.

[0006]

[Function] With the flap pieces folded, the sides of the flap pieces are closed by the obstruction pieces provided to protrude from the inner peripheral wall of the TE band. Since it is impossible to insert a pin or the like to the back of the flap piece, it is possible to completely prevent tampering with raising the flap piece and illegally opening the plug. When a pair of obstructing pieces is provided for one flap piece so as to grasp the folded flap piece from both sides, the side portion of the flap piece is closed, and the flap piece is grasped by the obstructing piece. Therefore, it is completely impossible to raise the flap pieces in the closed state, and the illegal opening can be more completely prevented. In addition, by forming a flange projecting toward the outer periphery of the container neck at which the flap is mounted in a folded state at the tip of the flap, the flange comes into contact with the outer periphery of the container at the time of opening. To prevent the flap from being folded back, increase the contact area with the lower end of the annular jaw, and increase the rigidity of the flap, so that the flap can securely engage the annular jaw and increase resistance The TE band can be reliably prevented from slipping through.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional side view of a synthetic resin cap with a tamper-resistant band according to the present invention.
Is connected to the skirt wall via a bridge 7 located between cut grooves 6 formed intermittently in the circumferential direction at the lower end of the cap body composed of the top wall 2 and the skirt wall 3. The TE band 5 is formed integrally with a synthetic resin.

In the figure, reference numeral 8 denotes a flap portion which is provided on the inner peripheral portion of the TE band so as to be inwardly foldable, and has a front end formed with cuts 9 at substantially equal pitches in the circumferential direction and separated in the circumferential direction. There are a plurality of flap pieces 10. Reference numeral 11 denotes a flange provided at the tip of the flap piece,
To increase the contact area with the annular jaw 16 and increase the resistance, and to reduce or eliminate the gap between the outer periphery of the container mouth and neck and the tip of the flap piece to prevent the flap piece from being fraudulently acted. It is provided in order to do. 12 is the flap piece 10 on the inner periphery of the TE band 5.
C is provided to hold the flap piece 10 in a state where the flap piece 10 is folded and cover the side of the flap piece 10 so as to obstruct insertion of an instrument such as a pin into the back space of the flap piece. It is a type of baffle piece, has a suitable elasticity, and is elastically deformed when the flap piece 10 is folded and pushed between the baffle pieces to receive and grip it.

The synthetic resin cap with a tamper-resistant band according to the present embodiment is configured as described above. As shown in FIG. 2, the flap piece 10 is previously pushed inward to be gripped by the obstruction piece 12, and the container is held in this state. And screw it on. In this state, as shown in the enlarged sectional view of FIG. 4, the distal end edge of the flange 11 is in contact with the outer peripheral portion of the container neck 15. Therefore, even if an attempt is made to insert a pin or the like from the side of the flap piece, the obstruction piece is blocked and obstructed, and the pin cannot be inserted to the back of the flap piece. Can be completely prevented. Further, even if a pin can be inserted into the back of the flap piece 10 from the notch 9 and the flap piece can be hooked, the flap piece is grasped from both sides by the obstruction piece 12, and the tip of the flap piece is formed on the outer periphery of the container neck. It is very difficult to cause it because it is in contact with the part. Further, at the time of opening, the flange provided at the tip of the flap piece comes into contact with the lower end of the annular jaw of the container, so that the contact area is increased and the flap piece can be reliably engaged with the annular jaw 16 and the resistance is reduced. And TE band can be reliably prevented from slipping through.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various design changes can be made.
For example, in the above embodiment, the baffle pieces are provided on both sides of the flap pieces and are formed in a C-shape so as to grip and cover the sides thereof, but it is not always necessary to grip the flap pieces. Alternatively, it may be configured to simply protrude straight from the inner peripheral portion of the TE band. Further, when the gap between the flap pieces is small, it is not always necessary to provide a pair of baffle pieces for one flap piece, and one baffle piece may be formed between the flap pieces, What is necessary is just to be able to cover so that a pin etc. cannot be inserted in the back part of the folded flap piece.

[0011]

According to the first aspect of the present invention, both sides of the flap piece are closed by obstructing pieces provided to protrude from the inner periphery of the TE band, and pins and the like are inserted from the sides of the flap piece. Since it is not possible to raise the flap pieces by mischief in the closed state, unauthorized opening can be completely prevented. According to the invention of claim 2, flashing is caused by mischief in the closed state.
In addition to making it impossible to raise the flap piece, the flange provided at the tip of the flap piece contacts the outer periphery of the container neck and neck to prevent the flap piece from rising and increases the contact area with the lower end of the container jaw. Thus, the resistance at the time of opening can be increased, and the TE band can be prevented from slipping through.

[Brief description of the drawings]

FIG. 1 is a partial sectional side view of a synthetic resin cap with a tamper-resistant band according to an embodiment of the present invention.

FIG. 2 is a bottom view thereof.

FIG. 3 is an enlarged perspective view of a main part of a tamper-resistant band.

FIG. 4 is an enlarged sectional view of a main part of a tamper-resistant band in a state where the band is attached to a container.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cap 2 Top wall 3 Skirt wall 5 Tamper prevention band (TE band) 7 Bridge 8 Flap part 9 Notch 10 Flap piece 11 Flange 12 Obstruction piece 15 Container neck and neck 16 Annular jaw

Claims (2)

(57) [Scope of request for utility model registration] 1. A cap body comprising a skirt wall and a top wall formed with a screw to be screwed into a container, and a tamper-resistant band detachably provided at a lower end of the skirt wall. in the synthetic resin cap having a flap piece possible tip folded inwardly spaced circumferentially inner wall of said tamper band, tamper vans
Insert the device between the
Flap pieces are folded between the flap pieces on the inner periphery of the tamper-resistant band so as to prevent plugging.
The flap so as to cover both sides of the flap piece
A synthetic resin cap with a tamper-resistant band, characterized in that a disturbing piece is formed on both sides of the piece. 2. A cap body comprising a skirt wall and a top wall formed with screws to be screwed into the container, and a tamper-resistant band provided at a lower end of the skirt wall so as to be separable. A synthetic resin cap having a flap piece which is inwardly foldable on the inner peripheral wall of the tamper-resistant band and whose tip is spaced apart in the circumferential direction ;
With the flap piece back and the
As to hinder the insertion of the instrument between the strap
Between the flap pieces on the inner periphery of the tamper-resistant band
A synthetic resin cap with a tamper-resistant band, wherein a flap is formed at the tip of the flap piece , and a flange is formed at the tip of the flap piece, the flange protruding in the outer peripheral direction of the container mouth and neck for mounting the cap with the flap folded. .