JPH0315482Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention is a type of metal cap that is used to seal bottles of alcoholic beverages, soft drinks, etc. and is removed from the bottle by manually pulling the tongue upward. Regarding improvements.

(Prior art) An example of the above-mentioned type of cap is Utility Model No. 57-41154.
This cap a is shown in the No. 7 to 10
As shown in the figure, the circular central part 1 and this central part 1
a top portion consisting of an annular shoulder portion 2 surrounding the annular shoulder portion, a cylindrical skirt portion 3 hanging down from the periphery of the annular shoulder portion, and a tension tongue piece 4 provided extending from a part of the skirt portion 3. A pair of first separation lines (score lines or cutting lines) 5, 5 starting from the lower edge 3a of the skirt on both sides of the tension tongue and extending toward the top, and the first separation lines 5, 5. It has a pair of second separation lines 6, 6 extending vertically from the lower edge 3a of the skirt toward the top on both sides of substantially the center line of the top, spaced apart from each other at equal intervals.

This cap a is attached to, for example, a wide-mouthed bottle b, and the lower part 3b of the skirt portion 3 is bent inward and engaged with the lower part of the outwardly bulging portion c of the opening of the bottle b, thereby sealing the bottle. To remove this cap from the bottle, the first separation line is first broken by lifting the pulling tongue 4, and the negative pressure inside the bottle is released. At this time, the tensioning tongue 4 is in the position shown by 4a in FIG. 9. Next, the pull tongue piece is further lifted and the skirt portion 3 is broken at the second separation line 6, six points, and the first,
Disengage the skirt between the second separation line and the bottle.
At the end of the operation, the tensioning tongue is in the position shown in FIG. 94b. Finally, pull the pulling tongue in the direction of arrow S in Figure 9 to disengage the remaining bottle from the cap, or after loosening the engagement somewhat, push the cap to the right in the figure to close the cap. Remove from bottle.

(Problems to be Solved by the Invention) In the conventional cap described above, when the portion behind the second separation lines 6, 6 is removed from the bottle, the second separation lines 6, 6 are removed as shown in FIG. Bend at the connecting line, the part before the second separation line is almost vertical, and the tension tongue is above or parallel to the bottle mouth, and in that state, push the finger upwards or horizontally as if pushing out. In other words, it is often pulled in a direction where it is difficult to apply force. Therefore, there are problems in that it takes time to remove the cap and a large amount of force is required to detach the cap.

Also, when removing the part behind the second separation line, half of the bottle mouth is open, and as shown above, the center part of the cap is bent, and as a result, the bottle is moved in the direction where it is difficult to apply force. The horizontal reaction of the force required to remove the cap from the mouth of the bottle acts as a reaction to the hand gripping the bottle, shaking the bottle and causing the risk of spilling the contents. There is a problem that there is.

The purpose of this invention is to obtain a cap that solves the above problems.

(Means for Solving the Problems) In order to achieve the above-mentioned purpose, the cap of the present invention has a top portion consisting of a circular center portion and an annular shoulder portion surrounding the center portion, and a top portion that hangs down from the periphery of the annular shoulder portion. It comprises a cylindrical skirt portion and a tensioning tongue provided extending from a part of the skirt, and a pair of tensioning tongues each emanating from the lower edge of the skirt on both sides of the tensioning tongue and extending toward the top. a first separation line;
A metal cap having a set of second separation lines extending vertically from the lower edge of the skirt toward the top at equal intervals from each of the separation lines, the metal cap having a recess and a protrusion in the center of the top; The recess is
The protrusion is provided at the center of the central portion, and the protrusion extends between the recess and the shoulder from the side where the tensioning tongue is located to the opposite side, and extends from the base of the tensioning tongue. It has a configuration that extends across a center line of the center section that is orthogonal to a center line of the center section that passes through the center.

(Function) Since the metal cap of the present invention has the recess and the protrusion, the protrusion provided in the center provides rigidity to resist bending of the cap.
As with the conventional cap, grasp the tension tongue and pull it diagonally upward to break the first separation line, and then lift the tension tongue further, causing the top of the cap to curve slightly due to the breakage of the second separation line. . After reaching this slightly curved state, the top of the cap becomes like a rigid body, and the force that tries to open the cap by successively lifting the pulling tongue in the same direction will cause the cap to detach. It acts as a force and has little reaction, allowing the cap to be removed from the bottle in a short time and with little force. Therefore, when the cap is removed, there is almost no effect on the hand holding the bottle, and together with the fact that the cap is still above the bottle mouth, the risk of spilling the contents of the bottle is reduced.
In addition, the rigidity of the central part of the cap is increased by installing the protrusion, but by making the recess part reversible, when the contents collide with the cap due to a drop of the bottle, etc., the impact force can be absorbed by reversing the recess part. This can prevent the cap and bottle from loosening.

(Example 1) Fig. 1 is a plan view showing one example of implementing the present invention, Fig. 3 is a sectional view taken along Fig. 1 A-A ₁ , and Fig. 4 is a sectional view taken along Fig. 1 B-B _1. FIG.

In the figure, 1, 2, 3, 4, 5, 6 are the 7th to
The same reference numerals as those in FIG. 9 are shown. 7a, 8
a is a protrusion and a recess provided in the central part 1, and the recess 8
a is formed in a substantially rectangular shape at the center of the center part 1,
The protrusion 7a is located between the shoulder portion 2 and the recess 8a, and extends from the side where the tensioning tongue 4 is located to the opposite side, along the center line A- of the central portion 1 passing through the center of the base of the tensioning tongue. It extends across the center line B- _B1 which is orthogonal to _A1 .

In this embodiment, the height C of the protrusion 7a is smaller than the depth A of the surrounding bottom surface (see FIG. 4). Therefore, when the caps are piled up, the upper and lower caps come into contact with the shoulders 2 and do not come into contact with the apex of the protrusion 7a. Further, the depth (b) of the recess 8a (see the same figure) is made shallower than twice the depth (a). Therefore, there is an advantage that even if the concave portion 8a after bottling is reversed due to a collision of the contents, the concave portion will not protrude above the shoulder portion 2.

(Embodiment 2) FIG. 2 is a plan view showing another example of the embodiment of _the present invention, FIG. It is a sectional view of _D1 .

In the figure, the ridge 7b is the same as the first embodiment except that the shape of the ridge 7b is different from the ridge 7a of the first embodiment, and the recess 8b is different from the recess 8a of the first embodiment.

That is, the recess 8b is formed in a circular shape concentric with the center portion 1, and the protrusions 7b are formed in an arc shape concentric with the recess 8b and arranged on both sides of the recess 8b. The concave portion 8b and the protrusion 7b of this embodiment have the advantage that the mold can be easily manufactured.

Note that when comparing Example 1 and the conventional example, the first
The force required to break the separation line is the same, but the conventional model requires a force of 1.8 kg when the second separation line breaks, and it takes 1.6 kg to separate the part of the cap after the second separation line from the bottle mouth. It cost Kg. In contrast, Example 1
In this case, it required 2.15 kg to break at the second separation line, and 1.3 kg to separate the portion of the cap after the second separation line.

From the above comparison, the force required to break the second separation line is greater in the embodiment of the present invention, but at this time, the bottle opening is still mostly covered by the cap, so even if the hand holding the bottle moves, the contents will not be released. will not spill. On the other hand, it is known that the force required to separate the cap after the second separation line is broken is smaller in the embodiment of the present invention, and the influence on the hand holding the bottle is small, reducing the risk of spilling the contents.

(Effects of the invention) In the metal cap of the present invention, the protrusion provided in the center provides rigidity against bending of the cap, and when the tension tongue is further lifted after the first separation line is broken, the second separation line is broken. The break causes the top of the cap to curve slightly. Thereafter, in this state, the top part becomes like a single rigid body, and the force required to open the cap is connected to the force required to detach the cap, and the reaction force upon detachment is also reduced. Therefore, the removal of the cap after the breakage of the second separation line can be carried out in a short time and with low force without having to change the grip of the pulling tongue, thus reducing the risk of spillage of the liquid contents.

In addition, the impact force when the content liquid collides with the cap,
By weakening the recess by inverting it, it is possible to prevent the engagement between the cap and the bottle mouth from loosening.

[Brief explanation of the drawing]

Figure 1 is a plan view showing Embodiment 1 of the present invention;
The figure is a cross-sectional view of Figure 1 A-A ₁ , and Figure 4 is Figure 1 B.
- Cross-sectional view of B ₁ . Fig. 2 is a plan view showing the second embodiment of the present invention, Fig. 5 is a sectional view taken along line C- _C1 in Fig. 2, and Fig. 6
The figure is a sectional view taken along line D- _D1 in FIG. Figures 7 to 10 show conventional examples, Figure 7 is a plan view of only the cap, Figure 8 is a partially sectional front view of the cap attached to the bottle,
9 is a right side view of FIG. 8, showing the positions of the tensioning tongues when the first separation line is broken and when the second separation line is broken, and FIG. 10 is a left side view of FIG. 8. 1: Center of top, 2: Annular shoulder, 3: Skirt, 4: Tension tongue, 5: First separation line, 6: Second separation line, 7a, 7b: Projection, 8a, 8b: Recess .

Claims (1)

[Claims for Utility Model Registration] (1) A top portion consisting of a circular center portion and an annular shoulder portion surrounding the center portion, a cylindrical skirt portion hanging down from the periphery of the annular shoulder portion, and a cylindrical skirt portion of the skirt portion. a pull tongue piece extending from a part;
A pair of first fins emanating from the lower edge of the skirt on both sides of the tensioning tongue and extending toward the top.
A metal cap having a separation line and a set of second separation lines extending vertically from the lower edge of the skirt toward the top at equal intervals from each of the first separation lines, the top having a recess in the center thereof; a protrusion, the recess is provided at the center of the central portion, and the protrusion is located between the recess and the shoulder on the opposite side from the side where the tension tongue is located. A metal cap for sealing a bottle opening, characterized in that the cap extends across a center line passing through the center of the base of the pull tongue and perpendicular to a center line of the central part. (2) Utility model registration claim 1, in which the concave portion is approximately square, and the protrusions extend parallel to the center line of the central portion passing through the center of the base of the tension tongue and are arranged on both sides of the concave portion. A metal cap that seals the mouth of the bottle as described in the section. (3) A metal cap for sealing the mouth of a bottle according to claim 1 of the utility model registration claim, wherein the concave portion is circular, and the protrusions are arcuate and concentric with the circular concave portion, and are arranged on both sides of the concave portion. .