JPH11227816A - Heat-resistant container cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a cutting section by the small pulling force at the time of opening a cap with a synthetic resin pulling piece and prevent a content from scattering at the time of opening. SOLUTION: A cap with a pulling piece 7 for opening easily a pouring spout is provided with small protruded sections of narrow width formed on the opening initial side and the opening terminal side of a cutting section forming the pouring spout of a closing plate and protruded ribs 16 working as stoppers for stopping preliminarily the opening on both sides of a root section of the small opening on the opening side. In the case of opening the cutting section, first the small protruded section with a pulling piece support 8 is opened by the small force, and then the ribs 16 work as stoppers to stop the opening operation temporarily by the arrangement. At that moment, air is flowed into from the narrow opening to replace the interior of a container by atmospheric pressure to prevent the scattering of a content liquid and also prevent the pollution all around.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap for a heat-resistant container which is filled with various fruit juices such as orange juice, drinks such as tea, and seasonings such as mirin. The present invention relates to a heat-resistant cap capable of opening a spout by cutting a cutout portion.

[0002]

2. Description of the Related Art Conventionally, regardless of whether the contents are heat-resistant or non-heat-resistant, a cap developed for non-heat-resistance has been used in this field. This type of cap is made of a synthetic resin integrally molded product, the opening of the cap body in the pouring cylinder is closed by a closing plate, and the cutout is easily cut through a thin portion in the closing plate. The thin portion is broken by pulling a pulling piece, the closing plate is removed, and an opening is obtained.
22038 and the like.

[0003]

In the conventional cap of this type, the cut-off portion is almost circular or elliptical, the score groove is not easily cut, and the cut end is hard.
If you pull the pulling piece strongly, the cut piece will be cut at a stretch,
There was a drawback that the spout was fully opened and the content liquid was scattered. In particular, when the contents are filled warmly or hot (hot pack), the inside of the container becomes negative pressure and the contents liquid is depressurized. However, there were problems such as soiling the surroundings.

[0004] In view of the above circumstances, it is an object of the present invention to open an opening with a small pulling force, to prevent the contents from being scattered at the time of opening and to facilitate the opening operation. Aim.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a cut-out portion provided with a small projection partly on a closing plate inside a pouring cylinder. An annular score groove is formed around the cutout on the inner side of the closing plate, and a convex rib crossing over the score groove is provided on both sides of the base of the small protrusion on the outer side, and a strut of a pulling piece is provided. The present invention solves the above problem by providing a cap for a container having a cutout portion, wherein the cap is connected to the small projection portion inside the score groove.

Further, in order to achieve the above-mentioned object, a cut-out portion provided with narrow small projections at opposing positions is provided on a closing plate inside the pouring cylinder, and a cut-out portion is provided inside the closing plate. An annular score groove is formed around the circumference, and a convex rib crossing over the score groove is provided on both sides of the base of one of the small protrusions on the outside, and the strut of the pulling piece is provided inside the score groove, Provided is a container cap having a cutout portion connected to the small projection.

[0007] In particular, the shape of the cutout portion formed in the closing plate is formed of a semicircular portion and a substantially triangular shape whose base is the diameter of the semicircular portion. It is preferable to provide a small projection at the upper part of the circle.

[0008]

In the present invention, with the cap attached to the container mouth, the container is grasped with one hand, and the pulling piece is pulled up with one hand, whereby one end is cut at the cutout portion. In this case, since convex ribs which cross the score groove are provided on both sides of the base of the small protrusion provided on the closing plate of the pouring cylinder, this convex upper rib is formed at the time of the initial opening of the cutout portion. This serves as a stopper, and the temporary opening stops. At that moment, the air enters the container from the narrow spout of the small projection and the scattering of the content liquid is prevented.
Furthermore, by providing a small projection that connects the strut of the pulling piece and a similar small projection at a position facing the small projection, a strong force is not required at the end of cutting the score groove. An opening can be made.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the embodiments shown in FIGS. The cap 1 includes a cap body 2 integrally formed of a synthetic resin and a hinge-coupled upper lid 3. Soft and hard polyethylene, polypropylene and the like are used as the synthetic resin. The cap body 2 has a skat portion 4 fitted to the bottle, a pouring tube 5 into which the contents are poured, a closing plate 6 inside the pouring tube 5, and a support for a pulling piece continuous therewith. 8, a ring 7 and a fitting projection 9 fitted when the upper lid is closed. An annular score groove 10 is formed on the inner surface of the closing plate 6, and as shown in the bottom view of the cap in FIG. The other side is a semicircular portion 11, and a narrow small projection 13 is formed at the apex of the triangle, and a similar narrow small projection 14 is formed at the vertex of the semicircular portion at a position facing the triangular portion. , And these are connected annularly to form the cutout 15.

As shown in FIG. 1, on the outer surface of the closing plate 6,
The strut 8 of the tension piece is vertically connected to the small protrusion 13, and the score groove of the small protrusion 13 and the substantially triangular score groove are joined, that is, on both sides near the base of the small protrusion 13,
Overlaid rectangular or circular rib 1 larger than the score groove width
6 is provided.

Although the closing plate 6 is substantially flat and has a uniform thickness as a whole, a portion of the cutout near the small protrusion 14 forms an inclined portion 17 which is inclined upward, and the thickness of the score groove is thin. The inclination angle of the inclined portion 17 is about 30 degrees with respect to the horizontal, and the thickness of the score groove is 0.2 to 0.25 mm on average, while the thickness of the score groove of the inclined portion 17 is about 0.15 mm. Is preferred.

A cylindrical skirt 18 hangs down from the inner surface of the upper lid 3, and fits tightly with the projection on the inner surface of the pouring cylinder when fitted with the cap body to prevent liquid leakage. An annular projection 19 is provided at a portion where the projection 9 of the upper lid 3 and the cap body 2 are fitted to improve sealing performance. In the figure, reference numeral 20 denotes a pouring cylinder as a reinforcing rib. The shape of the score groove of the cutout is not limited to the above-described embodiment, and may include a rectangular, circular, elliptical, etc. shape provided with a narrow small protrusion.

[0013]

As described above, according to the present invention, small projections are provided at the start and end of the cut, and ribs for stoppers are provided at the base of the small projection to prevent the cuts from being opened at once. Because of this configuration, when opening the cutout, the small projection with the pulling piece support first opens with a slight force, and then the rib acts as a stopper and the opening temporarily stops. At that moment, air flows in from the narrow opening to replace the inside of the container with atmospheric pressure, thereby preventing the content liquid from scattering and preventing surrounding contamination. Thereafter, the pulling piece is pulled up to open the entire cutout portion, but the small end portion is provided at the cut end portion of the cutout portion, and the closing plate of the small protrusion portion is inclined upward, so that the end portion of the cutout portion is slightly separated. It has the effect of being easily cut by force. Further, since the cap body and the upper lid are tightly fitted in the spouting tube portion and the fitting protrusion, the liquid content does not leak even after the cutout portion is removed, and the container is filled after the hot pack is filled. -Even in the case of cooling, there is an effect that water is prevented from entering the cap and sanitation is achieved.

[Brief description of the drawings]

FIG. 1 is a plan view of a cap of the present invention.

FIG. 2 is a cross-sectional view of the cap of the present invention, showing the upper cover in both open and closed states.

FIG. 3 is a bottom view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 11 Semicircular part 2 Cap body 12 Approximate isosceles triangular part 3 Upper lid 13 Narrow projection 4 Skeet part 14 Narrow projection 5 Discharge cylinder 15 Cut-out part 6 Closure plate 16 Rib 7 Tension piece 17 Slope Part 8 Tension piece support 18 Top cover skirt part 9 Fitting projection part 19 Annular projection part 10 Score groove 20 Reinforcement rib

Claims (4)

[Claims] 1. A closing plate inside a dispensing cylinder is provided with a cutout portion provided with a narrow small protrusion partly therein, and an annular score groove is formed inside the closing plate around the cutout portion. On the outside, a convex rib is provided on the score groove at the base of the small protrusion,
A cap for a heat-resistant container, wherein a support of a pulling piece is connected to the small protrusion inside the score groove. 2. A closing plate provided on the inner side of the dispensing cylinder with cutouts provided with narrow small projections at opposing positions, and an annular score groove is provided inside the closing plate around the cutout. Forming
On the outside, a convex rib is provided on the score groove at the base of one of the small protrusions, and the support of the pulling piece is connected to the small protrusion inside the score groove. Container cap. 3. The shape of the cutout formed in the closing plate is as follows:
A semi-circular portion and a substantially triangular shape having the base of the diameter of the semi-circular portion as a base, and a narrow small projection portion provided at an apex portion of the semi-circular portion opposed to a vertex of the triangular portion; 3. The method according to claim 2, wherein
The cap for a heat-resistant container as described. 4. The cap for a heat-resistant container according to claim 2, wherein the closing plate is inclined upward at a terminal end of the cutout portion, and a small projection is provided on the inclined portion.