CN115892721A

CN115892721A - Cutting connection cover

Info

Publication number: CN115892721A
Application number: CN202111157926.8A
Authority: CN
Inventors: 戴宏全
Original assignee: Taiwan Hon Chuan Enterprise Co Ltd
Current assignee: Taiwan Hon Chuan Enterprise Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2023-04-04

Abstract

The invention provides a cutting connecting cover: a body including a top portion of a circular shape and a skirt portion extending downward from a circumference of the top portion to be cylindrical; the inner circumferential surface of the skirt part is provided with internal threads; the bottom edge of the skirt part forms an annular bridging part along the circumference, and a linear notch is arranged along part of the circumference of the bridging part; the linear notch extends for an arc length around the axis of the cutting connection cover and forms a first central angle relative to the axis; the top edge of the anti-theft ring is connected to the bottom edge of the bridging part through a plurality of breakable bridging points and a non-breakable connecting part which are arranged at intervals along the circumference; a plurality of stopping blades are arranged on the inner circumferential surface of the anti-theft ring at intervals; the non-breaking connecting part extends for an arc length around the axis of the cutting connecting cover and forms a second central angle relative to the axis; the angular ratio of the first central angle to the second central angle is 3; an unbroken strip is formed between the linear notch and the top edge of the anti-theft ring.

Description

Cutting connection cover

Technical Field

The present invention relates to a screw-on and screw-off plastic container closure, and more particularly, to a plastic container closure having a non-breaking connection between the body and the anti-tamper ring, which connection allows the body to remain attached to the anti-tamper ring after release from the container mouth, while the anti-tamper ring remains on the neck of the container.

Background

US5360126 discloses a container lid with a double-layer anti-theft ring. The body of the container closure includes a top wall (indicated at 12) and a sidewall (indicated at 14) depending from the periphery thereof, the sidewall being internally threaded for threaded engagement with the external threads of the container mouth. The anti-theft ring (symbol 16) is the bottom of the container lid. The security ring (symbol 16) has an upper annular line of weakness (symbol 30) and a lower annular line of weakness (symbol 32), the upper bridge (symbol 34) and the lower bridge (36) corresponding respectively to the upper annular line of weakness (symbol 30) and to the lower annular line of weakness (symbol 32). The upper bridge (symbol 34) connects the upper band (symbol 16 a) of the anti-theft ring (symbol 16) to the bottom end of the side wall (symbol 14), while the lower bridge (symbol 36) connects the anti-theft ring lower band (symbol 16 b) to the anti-theft ring upper band (symbol 16 a). The inner side of the lower band (symbol 16 b) of the anti-theft ring is provided with a locking bead (symbol 28) which is buckled on the shoulder (symbol 26) of the container opening. Rotating the coupling cap in the unsealing direction causes the upper bridge (symbol) 34 to move upward relative to the lower bridge (symbol 36) and causes the upper band (symbol 16 a) of the pilfer proof ring to deform. Eventually the upper bridge (symbol 34) breaks, allowing the body of the container lid to be removed from the container mouth, leaving the upper band (symbol 16 a) and the lower band (symbol 16 b) of the pilfer proof ring at the mouth. The concept of the upper and lower anti-theft rings prevents the anti-theft rings from tilting or inclining when the container cover is opened, keeps the anti-theft rings parallel, and enables the upper bridge (symbol 34) to be easily broken to open the cover.

US9010555 (hereinafter "555") discloses a joined cap comprising a skirt (symbol 121) and a pilfer-proof ring (symbol 122) which are circularly encircled, a first line of weakening (symbol 34) being interposed between the skirt (symbol 121) and the pilfer-proof ring (symbol 122), a second line of weakening (symbol 20) being located below the first line of weakening (symbol 34) and encircling the circumference of the pilfer-proof ring (symbol 122), two unbreakable bridges (symbol 301, 302) making the second line of weakening (symbol 20) form two interruptions. The non-breakable strip (symbol 36) is interposed between the first weakening line (symbol 34) and the second weakening line (symbol 20). When the cap is unscrewed, the skirt part (symbol 121) moves upwards in a rotating way along the thread of the bottle mouth, the anti-theft ring (122) is limited under the protrusion part (symbol 6) of the bottle mouth by the limiting part (symbol 22), then the skirt part (symbol 121) is far away from the anti-theft ring (122), the bridging point (symbol 261) is broken, and the strip (symbol 36) is pulled apart to form an arc shape to leave the skirt part (symbol 121) due to the upward movement of the skirt part. When the skirt (symbol 121) is disengaged from the mouth, the anti-tamper ring (122) remains connected by the strip (symbol 36) and the two non-breakable bridges (symbols 301, 302).

The second weakening line (symbol 20) of the 555 case has two non-breakable bridges (symbols 301, 302) which are too short in width in the circumferential direction and which are separated by a distance which is several times as large as the width of the non-breakable bridges (symbols 301, 302), which results in each non-breakable bridge being insufficiently rigid. During the initial unscrewing of the closure, the rotational torque of the skirt (reference numeral 121) together with the non-breakable bridges (reference numerals 301, 302) are twisted and deformed, thereby weakening the rotational torque that should be applied to the bridge (reference numeral 261) to enable the bridge to be broken instantaneously, so that the bridge (reference numeral 261) is not easily broken immediately, and the user must exert a great force to unscrew the closure.

Disclosure of Invention

To solve the above problems, the present invention proposes an improved coupling cover solution.

The invention provides a cutting connecting cover, comprising: a body including a top portion of circular shape and a skirt portion extending downward from a circumference of the top portion to be cylindrical; the inner circumferential surface of the skirt part is provided with internal threads; the bottom edge of the skirt part forms an annular bridging part along the circumference, and a linear notch is arranged along part of the circumference of the bridging part; the linear notch extends around the axial lead of the cutting connection cover to form a first central angle;

the top edge of the anti-theft ring is connected to the bottom edge of the bridging part through a plurality of breakable bridging points and a non-breakable connecting part which are arranged at intervals along the circumference; a plurality of stopping blades are arranged on the inner circumferential surface of the anti-theft ring at intervals; the non-breaking connecting part extends around the axial lead of the cutting connecting cover to form a second central angle;

the angular ratio of the first central angle to the second central angle is 3;

an unbreakable strip is formed between the linear notch and the top edge of the anti-theft ring;

the top edge of the stopping blade is higher than the top edge of the anti-theft ring but lower than the linear notch.

Preferably, the first central angle is in a range of 90 ° to 180 °.

Preferably, the angle of the second central angle is in the range of 30 ° to 60 °.

Preferably, in the above aspect, the first central angle is 150 ° and the second central angle A2 is 50 °.

Preferably, the height of the unbroken strip in the vertical direction is 1mm to 4mm.

Preferably, as a preference of the above technical solution, the height of the anti-theft ring is defined in the vertical direction, and the height of the anti-theft ring ranges from 1.5mm to 4mm.

Preferably, the height of the stopping blade is defined in the vertical direction, and the height of the stopping blade is in the range of 2mm to 5mm.

The purpose and effect of the invention are as follows:

the non-breaking connecting part has a continuous and uninterrupted preset arc length, the structural rigidity of the non-breaking connecting part is improved, when the cutting connecting cover is unscrewed for the first time, the non-breaking connecting part cannot follow the torsional deformation along with the rotating torsion of the skirt part, and in addition, the resisting blade is tightly propped against the lower part of the clamping ring of the bottle mouth, the stability of the anti-theft ring is increased, the torsion for opening the cover in the first rotation can be concentrated on a plurality of breakable bridging points to immediately fracture the anti-theft ring, and the rotating torsion required for opening the cutting connecting cover for the first time can be reduced.

The proportion of the first central angle of the linear notch and the second central angle of the non-breaking connecting part ensures that the non-breaking strip generates upward bending and stretching deformation in the process of opening and cutting the connecting cover, so that the skirt part can be smoothly separated from the bottle mouth. The unbroken connecting part with the continuous and uninterrupted preset arc length can support the tensile deformation of the unbroken strip, and ensure that the unbroken strip is finally still connected with the anti-theft ring without the problem of fracture separation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is also possible for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a top perspective view of a first embodiment of a cutting joint cover according to the present invention.

FIG. 2 is a bottom perspective view of the first embodiment of the cutting connecting cover of the present invention.

FIG. 3 is a front view of a first embodiment of the cutting link cover of the present invention.

Fig. 4 is a sectional view taken along line IV-IV in fig. 3.

Fig. 5 is a cross-sectional view taken along line V-V in fig. 3.

Fig. 6 is a cross-sectional view VI-VI of fig. 3.

FIG. 7 is a schematic view of the cut-and-tie closure of the first embodiment of the present invention mated with a bottle mouth.

FIG. 8 is a schematic view of the first embodiment of the connecting cover of the present invention after being cut and removed from the bottle mouth.

Fig. 9 is a front view of a second embodiment of the cutting joint cover of the present invention.

Fig. 10 is a cross-sectional view taken along line X-X in fig. 9.

FIG. 11 is a schematic view of a second embodiment of the connecting cap of the present invention cut away from the bottle mouth.

Wherein, 1, cutting the connecting cover; 10, a main body; 11, the top; 12, a skirt part; 14, internal threads; 15, a notch; 16, a bridge part; 17, linear incision; 20, an anti-theft ring; 21, top edge; a breakable bridging point; no breaking of the connection part; 24, stopping the blade; 30, the strip is not broken; 40, a bottle mouth; 41, external threads; 42, a clamping ring; 5, cutting the connecting cover; 51, a non-breaking strip; 52, an anti-theft ring; 53, stopping the blade; h1, the height of the unbroken strip; h2, the height of the anti-theft ring; h3, stopping the height of the leaf; X-X-cutting the axis of the connecting cover; a1, a first central angle; and A2, a second central angle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 7, a first embodiment of the cutting joint cover 1 of the present invention includes a body 10 and a pilfer proof ring 20.

The body 10 includes a circular top portion 11 and a skirt portion 12 extending downward from the circumference of the top portion 11 in a cylindrical shape. Irregularities for preventing slipping of fingers are repeatedly formed on the outer circumferential surface of the skirt portion 12. The skirt 12 has an internal thread 14 formed on its inner circumferential surface, the internal thread 14 being continuous or comprising at least one notch 15. The bottom edge of the skirt 12 forms an annular bridge 16 along the circumference, and a linear cut 17 is provided along a part of the circumference of the bridge 16. The linear cut 17 extends for an arc length around the axis X-X of the cutting link cover 1 and forms a first central angle A1 with the axis X-X, in an embodiment the angle of the first central angle A1 is 150 °, advantageously in the range of 90 ° to 180 °. The linear slits 17 keep the slit edges in contact before the first opening of the cutting joint cover 1, thereby preventing dust and dirt from entering the inside of the cutting joint cover 1.

The top edge 21 of the anti-theft ring 20 is connected to the bottom edge of the bridge portion 16 via breakable bridge points 22 arranged at circumferentially spaced intervals and a non-breakable connection portion 23. A plurality of stopping blades 24 are arranged at intervals on the inner circumferential surface of the security ring 20, and each stopping blade 24 extends inward and upward from the inner circumferential surface of the security ring 20. The unbroken connecting portions 23 extend over an arc length around the axis X-X of the cutting joint cap 1 and form with the axis X-X a second central angle A2, which in the embodiment is 50 ° in an advantageous angular range of 30 ° to 60 °.

The angular ratio of the first central angle A1 to the second central angle A2 ranges from 3.

The linear cut 17 forms a non-breaking strip 30 between the top edge 21 of the anti-theft ring 20, in which embodiment the non-breaking strip 30 may define a height H1 in the vertical direction, the height H1 being 1.8mm, advantageously in the range of 1mm to 4mm.

The anti-theft ring 20 may define a height H2 in the vertical direction, in an embodiment the height H2 is 1.8mm, advantageously in the range of 1.5mm to 4mm.

The stop blade 24 may define a height H3 in the vertical direction, in an embodiment the height H3 is 2.7mm, advantageously in the range of 2mm to 5mm. In an advantageous height range, the top edge of the stop blade 24 is higher than the top edge 21 of the security ring 20 but lower than the linear cut 17.

As shown in fig. 7, the cutting coupling cap 1 is mounted to the mouth 40 of the bottle having the external thread 41 and screwed by a known technique. The anti-tamper ring 20 and its stop blades 24 are located below the retaining ring 42 of the mouth 40.

Referring to fig. 8, when the cutting connection cap 1 is opened for the first time in a known manner, the main body 10 moves upward by an angle along with the guiding of the screw thread, the stopping blade 24 of the anti-theft ring 20 still stops under the joint portion, the anti-theft ring 20 generates a rotation resistance, the rotation torque of the main body 10 along the opening direction causes the breakable bridging point 22 between the main body 10 and the anti-theft ring 20 to be instantly and completely broken, the main body 10 continues to rotate along the opening direction, the main body 10 rotates and rises upward along the opening direction along with the gradual release of the screw thread joint, the distance between the main body 10 and the anti-theft ring 20 becomes larger, the unbroken strip 30 moves upward due to the main body 10, but is pulled to be in an arc shape due to the supporting and positioning of the unbroken connecting portion 23. When the skirt 12 is detached from the mouth 40, the body 10 remains connected to the pilfer ring 20 by means of the unbroken strip 30 and the unbroken connecting portion 23.

Referring to fig. 9 to 11, a second embodiment of the cutting joint cover 5 of the present invention is shown. The differences from the first embodiment are as follows:

the unbroken strip 51 has a height H1 of 3mm in this embodiment.

The anti-theft ring 52, in this embodiment has a height H2 of 2.6mm.

The stop blade 53, in this embodiment has a height H3 of 4mm.

In addition to the above differences, the technical features of the above-mentioned cutting connection cover 1 of the first embodiment are all implemented in the cutting connection cover 5 of the second embodiment, and are not repeated herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cutting link cap, comprising:

a body including a top portion of circular shape and a skirt portion extending downward from a circumference of the top portion to be cylindrical; an internal thread is formed on the inner circumferential surface of the skirt part; the bottom edge of the skirt part forms an annular bridging part along the circumference, and a linear notch is arranged along the partial circumference of the bridging part; the linear notch extends for an arc length around the axis of the cutting connection cover and forms a first central angle relative to the axis;

the top edge of the anti-theft ring is connected to the bottom edge of the bridging part through a plurality of breakable bridging points and a non-breakable connecting part which are arranged at intervals along the circumference; a plurality of stopping blades are arranged on the inner circumferential surface of the anti-theft ring at intervals; the non-breaking connecting part extends for an arc length around the axis of the cutting connecting cover and forms a second central angle relative to the axis;

the angular ratio of the first central angle to the second central angle is 3;

2. The cutting link cap of claim 1, wherein the first central angle is in the range of 90 ° to 180 °.

3. The cutting joint cap according to claim 1, wherein the second central angle is in the range of 30 ° to 60 °.

4. The cutting link cap of claim 1, wherein the first central angle is 150 ° and the second central angle A2 is 50 °.

5. The cutting link cover of claim 1, wherein the non-breaking strip defines a height in a vertical direction, the height of the non-breaking strip being in a range of 1mm to 4mm.

6. The cutting link cover of claim 1, wherein the anti-theft ring defines a height in a vertical direction, the height of the anti-theft ring being in a range of 1.5mm to 4mm.

7. The cutting link cover of claim 6, wherein the stop blade defines a height in a vertical direction, the height of the stop blade being in a range of 2mm to 5mm.