JP5568936B2 - Pilfer proof cap - Google Patents

Description

  The present invention relates to a synthetic resin pilfer proof cap that can be attached to a bottle opening such as a bottle to clearly show an opening history due to unauthorized opening and prevent accidents caused by unauthorized refilling of contents.

  Conventionally, as a pilfer-proof cap, for example, as disclosed in Patent Document 1, a crown lid portion formed with a screw thread to be screwed into a bottle mouth on the inner periphery, and a bottle that prevents the crown lid portion from being opened. A pill composed of a fastening ring portion having a hooking claw that engages with a hooking projection on the shoulder portion of the mouth, and a bridging portion that connects the fastening ring portion and the crown lid portion and is cut by opening the crown lid portion. In the proof cap, one end of the bridging part is connected to the upper surface of the fastening ring part, the other end is connected to the bottom part of the notch groove formed on the lower surface of the crown cover part, and the notch groove in the crown lid part is opened by opening the crown lid part. There is a synthetic resin pill fur proof cap characterized in that it is cut at the bottom and the remainder of the cut is buried in the cut groove from the lower surface of the crown lid.

Japanese Patent Laid-Open No. 10-139053

However, in the above-described synthetic resin pilfer-proof cap, as shown in FIG. 4, the cutting residue 43 of the bridge portion 4 is obtained by turning the crown lid portion 1 and breaking near the end 42 of the bridge portion 4. Remains in the fastening ring portion 2. For this reason, there is a possibility that a consumer directly touches the cut residue 43 with a finger or the like, and not only a so-called tingling sensation but also an injury to the finger or mouth in some cases.
In view of the above-described problems, an object of the present invention is to provide a pilfer proof cap that not only has a good feel after opening the cap but also does not cause injury to fingers, mouths, and the like.

The pilfer-proof cap according to the present invention is a connection that can break the flat upper end surface of the opening upper edge of the annular band and the flat lower end surface of the opening lower edge of the cap body in order to solve the above-mentioned problems. A pilfer proof cap connected and integrated at a portion, wherein the upper end surface of the annular band or the cap body is connected to a linear connecting portion that connects the upper end surface of the annular band and the lower end surface of the cap body at the shortest distance. provided with a narrow neck portion to allow rupture by either of the lower end surface of, among the lower end surface of the opening edge portion of the upper surface and the cap body of the opening edge portion of the annular band, the end face of connecting portion broken remains Further, at least one protective protrusion is located in the vicinity of the base of the connecting portion .

  According to the present invention, even if the broken portion of the connecting portion remains and is exposed, the protective protrusion is present in the vicinity of the broken portion, so that the user's finger, mouth, etc. are in direct contact with the broken portion. This prevents not only the so-called tingling sensation, but also eliminates the risk of injury to fingers, mouths, etc., and provides a highly safe pilfer-proof cap.

According to this embodiment, even if the connecting portion is broken in the vicinity of the lower end surface of the cap main body, the desired safety can be ensured by the protective protrusion, so the degree of freedom in design is increased and the pilfer is easy to design A proof cap is obtained.

As an embodiment of the present invention, protective protrusions positioned in the vicinity of both sides of the base part of the connecting part to be broken may be provided.
According to this embodiment, since the protective protrusions are located on both sides of the broken portion of the connecting portion, not only the feeling of use is improved, but the safety is further improved.

  As another embodiment of the present invention, a protective protrusion may be integrated with a position restricting protrusion formed on the cap body.

According to the present embodiment, the position restricting protrusion can be used also as the protective protrusion, and there is an effect that the mold design becomes easy and the rigidity can be increased .

1A and 1B are a plan view and a partial sectional view showing a first embodiment of a pilfer-proof cap according to the present invention. 2A is a cross-sectional view taken along the line IIA-IIA in FIG. 1A, and FIGS. 2B and 2C are cross-sectional views taken along the line IIB-IIB and IIC-IIC in FIG. 1B. 3A and 3B are a plan view and a front view of the cap holder. 4A is a sectional view taken along line IVA-IVA in FIG. 3A, and FIG. 4B is a sectional view taken along line IVB-IVB in FIG. 3B. 5A and 5B are a plan view and a partial cross-sectional view showing a second embodiment of the pilfer-proof cap according to the present invention. 6A is a cross-sectional view taken along line VIA-VIA in FIG. 5A, and FIGS. 6B and 6C are cross-sectional views taken along line VIB-VIB and VIC-VIC in FIG. 5B. 7A, 7B, and 7C are longitudinal sectional views showing a third embodiment of the pilfer-proof cap according to the present invention, and are transverse sectional views cut at different positions. 8A, 8B and 8C are a longitudinal sectional view showing a fourth embodiment of a pilfer-proof cap according to the present invention, and a transverse sectional view cut at different positions. 9A, 9B and 9C are a longitudinal sectional view showing a fifth embodiment of a pilfer-proof cap according to the present invention, and a transverse sectional view cut at different positions.

An embodiment of a pilfer-proof cap according to the present invention will be described with reference to the accompanying drawings of FIGS.
As shown in FIGS. 1 to 4, the pilfer-proof cap 10 according to the first embodiment is formed by connecting and integrating an annular band 20 and a cap body 40 through a connecting portion 30 so as to be separated. The holder 50 can be assembled.

  The annular band 20 and the cap when the annular band 20 is pushed to the cap main body 40 side with a pin to release during molding or when the pilfer proof cap 10 is attached to the cap holder 50. In order to prevent the gap between the main body 40 from collapsing, trapezoidal position restricting protrusions 21 are provided at a predetermined pitch on the upper end surface of the opening edge. The position restricting projection 21 slightly protrudes inward. Further, the annular band 20 is formed with a retaining protrusion 22 along the lower side edge portion of the inner side surface thereof, and the upper edge portion of the inner side surface thereof is restricted in order to restrict the rotation in the counterclockwise direction. Four position restricting claw portions 23 are projected at a predetermined pitch. A lower end portion of a connecting portion 30 which will be described later is integrally formed on the upper end surface of the position restricting claw portion 23 so as to be breakable.

  The connecting portion 30 has a minimum cross-sectional area so that it can be broken at the lower end portion thereof, and is integrally formed with the upper end surface of the position restricting claw portion 23, and the upper end portion of the cap body 40 described later. It is integrally formed with the lower end surface of the opening edge.

  The cap main body 40 has a female thread portion 41 formed on the inner peripheral surface thereof, and the upper end portion of the connecting portion 30 is integrally formed on the lower end surface of the opening edge portion, and one side of the connecting portion 30 is formed. A protective first protrusion 42 having a substantially Y-shaped cross section is provided in the vicinity. Further, the cap body 40 is provided with a trapezoidal position restricting projection 43 for preventing reverse rotation on the remaining side of the connecting portion 30.

As shown in FIG. 3 and FIG. 4, the cap receiver 50 is attached, for example, as an extraction tool for a mayonnaise container (not shown). And the backlash rib 52 is arranged in the up-and-down direction on the outer peripheral surface located above the attaching part 51 integrated with the opening part of the mayonnaise container, and the upper end part of the two backlash prevention ribs 52 Arc-shaped ribs 53 are formed so as to connect the two. For this reason, a notch 54 is formed between the arc-shaped ribs 53. Further, a pair of idling prevention ribs 55 for preventing idling of the annular band 20 is provided at one end of the arc-shaped rib 53 at a position facing the center of the axis. Further, a male thread portion 56 is formed on the outer peripheral surface located above the idling prevention rib 55. Reference numeral 57 denotes a spout for the cap holder 50.

Then, the pilfer proof cap 10 is fitted into the cap holder 50, and the annular band 20 of the pilfer proof cap 10 passes through the male thread portion 56 of the cap holder 50, and then the cap holder 50. When the female thread portion 41 of the pilfer proof cap 10 is screwed into the male thread portion 56, the retaining rib 22 of the annular band 20 gets over the arc-shaped rib 53. Then, the position restricting claw portion 23 formed on the inner side surface of the annular band 20 gets over the idling prevention rib 55 formed on the cap holder 50. Next, the position restricting claw 23 is engaged with the notch 54, and the position restricting protrusion 21 protruding inward of the annular band 20 is the upper end surface of the arc-shaped rib 53 of the cap holder 50. The assembly work is completed.

Next, when only the pilfer proof cap 10 is turned to the open side, the position restricting claw portion 23 provided on the annular band 20 is engaged with the idling prevention rib 55 of the cap holder 50, so that the cap body 40 Only is forced to rotate. For this reason, the shear stress concentrates at the lower end portion of the connecting portion 30, particularly the connecting portion 30 having a small cross-sectional area, and breaks. Even if the cap body 40 is turned to the closed side, the trapezoidal position restricting protrusion 43 of the cap body 40 engages with the position restricting protrusion 21 of the annular band 20 and is thus restricted. The connecting part 30 is not broken by mistake.

In the first embodiment, even if the lower end portion of the connecting portion 30 is broken, the first protective protrusion 42 is formed near one side of the connecting portion 30 in the lower end surface of the opening edge portion of the cap body 40. It is. For this reason, there is an advantage that it is safe because the user does not directly touch the broken portion of the connecting portion 30 and does not feel a tingling sensation or injuries.

As shown in FIGS. 5 and 6, the pilfer-proof cap according to the second embodiment has the same basic structure as that of the first embodiment described above, except that the bottom end surface of the opening edge of the cap body 40 is the same. In addition, the first protrusion 42 for protection and the second protrusion 44 for protection having a substantially Y-shaped cross section are formed with the connecting portion 30 therebetween. The other parts are almost the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.
According to the present embodiment, the protective first and second protrusions 42 and 44 are formed on both sides of the connecting portion 30, so that it becomes even more difficult for the user to touch the fractured portion of the connecting portion 30, and safety. Has the advantage of improving.

As shown in FIG. 7, the pilfer-proof cap according to the third embodiment has the same basic structure as that of the first embodiment described above, except that the pill fur-proof cap is connected to the lower end surface of the opening edge of the cap body 40. This is a case where the first protrusion for protection 42 having a substantially Y-shaped cross section and the position restricting protrusion 45 that also functions as the third protrusion for protection are formed with the portion 30 in between. The other parts are almost the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.
According to the present embodiment, the protective first and second projecting portions 42 and 44 are formed on both sides of the connecting portion 30, so that it becomes even more difficult for the user to touch the broken portion of the connecting portion 30, and safety. Will improve. Further, since the position restricting protrusion 45 is formed by integrally forming the second protecting protrusion, the rigidity is increased, and the breakage of the connecting portion 30 due to the reverse rotation of the cap body 40 can be further reliably prevented. There are advantages.

As shown in FIG. 8, the basic structure of the pilfer-proof cap according to the fourth embodiment is the same as that of the first embodiment described above. Is a point. For this reason, the upper and lower ends of the opening edge of the annular band 20 and the lower end face of the opening edge of the cap body 40 are respectively provided with the protective fourth and fifth portions so that the user is not injured at the broken portion of the connecting portion 31. The protrusions 24 and 46 are provided on the same axis. The other parts are almost the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.
According to the present embodiment, there is an advantage that the breakage position of the connecting portion 30 can be selected while maintaining safety, the degree of freedom in design is increased, and the design is facilitated.

As shown in FIG. 9, the pilfer-proof cap according to the fifth embodiment has the same basic structure as that of the first embodiment, except that the breaking position of the connecting portion 32 is the upper base. Is a point. For this reason, a protective sixth projection 25 is provided in the vicinity of the base of the connecting portion 32 in the upper end surface of the opening edge of the annular band 20. The other parts are almost the same as those of the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.
According to the present embodiment, it is possible to select the break position of the connecting portion while maintaining safety, and there is an advantage that the degree of freedom in design increases and the design becomes easy.

  The pilfer-proof cap according to the present invention is not limited to the mayonnaise container, and can of course be applied to the spout of other containers.

10: Pilfer proof cap 20: Annular band 21: Position restricting protrusion 22: Retaining protrusion 23: Position restricting claw 24: Protective fourth protrusion 25: Protective sixth protrusion 30, 31 , 32: connecting portion 40: cap body 41: female screw portion 42, 44: first and second projections for protection 43, 45: projection for position regulation 46: fifth projection for protection 50: cap holder 51 ： Mounting portion 52: Backlash prevention rib 53: Arc-shaped rib 54: Notch portion 55: Idling prevention rib

Claims (3)

A pilfer proof cap in which the flat upper end surface of the opening upper edge of the annular band and the flat lower end surface of the opening lower edge of the cap main body are connected and integrated by a breakable connecting portion,
A narrow neck portion so that either the upper end surface of the annular band or the lower end surface of the cap body can be broken into a linear connecting portion that connects the upper end surface of the annular band and the lower end surface of the cap body with the shortest distance. And providing
Of the lower end surface of the opening edge portion of the upper surface and the cap body of the opening edge portion of the annular band, the end face of connecting portion broken remains, at least one protective projections located on the base near the connecting portion A pilfer proof cap characterized by a protruding configuration.   The pilfer proof cap according to claim 1, wherein a protective protrusion is provided in the vicinity of both sides of the base of the connecting portion to be broken.   The pilfer proof cap according to claim 1 or 2, wherein a protective protrusion is integrated with a position restricting protrusion formed on the cap body.

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