JPH086731Y2 - Glass bottle with crown bottle mouth - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] This invention is intended to remove the crown of a glass bottle, such as a beer bottle, a soft drink bottle, etc., which has been capped at the mouth by using the crown remover. The present invention relates to a glass bottle that is unlikely to suffer from cracks and chipping.

[0002]

2. Description of the Related Art FIG. 3 is a bottle mouth portion of a conventionally known crown bottle.
Is shown. The bottle mouth 1 consists of a lip 2, a turnip 3, and a neck 4.
ing. The top of the turnip 3 that connects to the bottom of the lip 2 is outside
It is formed on the throttle portion 5 that is curved in a concave shape. Bottle mouth 1
Is defined by the standard as shown in FIG.
It is manufactured to the specified specifications. That is, the inner diameter of the bottle mouth part a ... 16.3 mm, the maximum outer diameter of the lip 2 b ... 26.3 mm, the minimum outer diameter of the throttle part 5 c ... 23.9 mm, the bent part of the crown skirt part at the time of stoppering, and the
Outer diameter of contact point 6 (hereinafter referred to as locking point) d… 25.9mm Length from top surface 7 of lip 2 to locking point 6 e… 3.9mm In addition, squeeze portion 5 that forms lip 2 and cover 3
The arc of each part (only the main part) including is made as follows.
It That is, the arc of the outer upper end of the lip 2 has a radius of 2.4 mm centered on the inner side of the bottle. …………… r₁  The arc following the above consists of a 4.0 mm radius centered on the inside of the bottle. ……………………………… r₂  The arc of the lower part of the lip 2 that follows is a radius of 1.8 mm or less, usually 1.2 mm, centered on the inner side of the bottle. ………………………………………… r₃  The arc of the upper part of the turnip 3 which follows the above has a radius of 2.4 mm centered on the outside direction of the bottle. ……… r_Four  The arc of the middle part of the turnip 3 that follows is a radius of 44.5 mm centered on the inner side of the bottle. ……… r_Five

As shown in FIG. 5, a crown 8 is plugged into the bottle mouth portion 1 of the conventional crown bottle manufactured according to the above specifications. 9 is the skirt of the crown 8 and 10 is the liner. On the other hand, to open the cap, set the JIS standard crown remover 12 so that the fulcrum 13 is located on the top surface of the crown 8 and the claw part 14 contacts the upper part of the turnip 3, and then push up the crown remover 12 around the fulcrum 13. Done by. As a result, the crown 8 is removed by lifting the skirt portion 9 with the claw portion 14.

[0004]

By the way, in the conventional crown bottle as described above, the opening locus 18 at the tip of the claw portion 14 of the crown puller 12 is as shown by the alternate long and short dash line in FIG. A concentrated load is applied to the periphery of the lip 2 where the locking point 6 is crossed. As a result, the bottle mouth 1 may be chipped or cracked, resulting in a loss of commercial value. In addition, since the outer diameter of the locking point is large in the current crown, the amount of squeezing of the crown by the capping machine throat is reduced when plugging. As a result, the bent part of the folds of the crown presses the locking point part of the bottle mouth with unreasonable force, stress concentrates near the locking point and minute cracks occur, resulting in chipping of the mouth when opening. was there. FIG. 6A shows the entire chip, and FIG. 6B shows the partial chip. In addition, although not shown in the figure, there are various modes of chipping such as half-faced chipping, minute chipping, or top chipping. Therefore, this invention solves the problems of the conventional ones, and when opening the cap,
It is an object of the present invention to provide a glass bottle having a crown bottle mouth which is less likely to have a mouth portion that is chipped or cracked.

[0005]

In order to achieve the above object, the present invention is directed to a crown bottle as described above, in which the throttle portion 27 of the glass bottle has the same diameter from the vicinity of the maximum outer diameter b of the lip 2. Outward arcs of radius r ₆ and radius r ₇
With the inward arc of No. 22, a notch 22 whose outer shape is notched in an annular shape so that a locking point 23, which is a contact point with which the bent portion of the crown skirt comes into contact at the time of stoppering, is formed near the connection point of both arcs. It is formed integrally with a thick portion 25 whose outer shape is annularly thick due to an outward circular arc having a radius r ₅ from the vicinity of the minimum outer diameter of the inward circular arc of the cutout portion. The stopper opening 20 at the tip of the claw portion 14 of the crown remover 12 that is set so as to hit when the stopper is closed is the lip 2.
It is characterized in that it can pass through a position where there is no problem in opening the crown that is located a predetermined distance outside the maximum outer diameter b, and there is no risk of chipping of the bottle mouth.

[0006]

With the above construction, as shown in FIG. 2, when the cap is opened, the opening locus 20 at the tip of the claw portion 14 of the crown remover 12 passes through the outside of the lip 2 without crossing the lip 2. Concentration of load on the surroundings, such as Further, by reducing the outer diameter of the locking point, stress concentration at the time of plugging can be reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a drawing showing a half of a cross section of a bottle mouth portion of an embodiment of the present invention. In this embodiment, most of the structure is similar to the conventional one shown in FIG. Therefore, the specification of the conventional bottle mouth part is shown by the one-dot chain line,
The parts that overlap with each other are shown by solid lines to clarify the comparison between the specifications.

Numeral 22 is described later from the vicinity of the maximum outer diameter b of the lip 2.
With the notch formed in the lower portion of the lip 2 over the thick portion 25,
This notch 22 makes the locking point 23 easier than before.
Located inside. That is, the outer diameter value in this example is 0.
6mm smaller. 25 is a thick part provided in the narrowed portion 5,
In this embodiment, the maximum thickness t of the thick portion 25 is 0.2 mm to 0.8 mm.
Has become. And, with the notch 22 and the thick portion 25,
An outer concave diaphragm 27 such as the diaphragm 5 is formed. Off
Compliant with the specifications of the bottle mouth part where the notch 22 and the thick part 25 are formed.
The differences from the traditional ones are as follows. That is, the minimum outer diameter of the throttle portion 27 f ... 24.1 mm The outer diameter of the locking point 23 g ... 25.3 mm Arc r₂The arc at the bottom of the lip 2 that follows is a radius of 1.0 mm centered on the inner side of the bottle. ……… r₆  The arc of the upper part of the turnip 3 which follows the above has a radius of 1.0 mm centered on the outside direction of the bottle. ……… r₇

The operation of this embodiment will be described with reference to FIG. With the above-described specifications, the position of the upper portion of the turnip 3 to which the claw portion 14 contacts when the crown removal 12 is set becomes closer to the claw portion 14 side by the wall thickness portion 25 by the thickness dimension. Therefore, when the crown puller 12 is pushed up around the fulcrum 13 at the time of opening, the opening locus 20 at the tip of the claw portion 14 passes through the outside of the lip 2 as shown by the chain double-dashed line. Thus, it is possible to avoid the concentration of load on the periphery unlike the conventional one. Further, as another action, by reducing the outer diameter of the locking point 23 by 0.6 mm, the stress concentration near the locking point at the time of tapping can be reduced. By reducing this stress concentration,
A small crack may enter the bottle mouth, but this can be prevented, and it is possible to reduce the chipping of the mouth when opening the stopper.

[0010]

[Effect of the Invention] This invention has the above-mentioned configuration,
At the time of opening, it is possible to pass the opening trajectory of the tip of the crown removing claw part through the outside without crossing the lip part, so at the time of opening, the bottle mouth part may be chipped or cracked. It is possible to prevent the occurrence of chipping that may go in and to increase the commercial value of glass bottles. Further, since the locking point is located inside the bottle, there is an excellent effect that the effect of reducing stress concentration at the time of stoppering further effectively acts to prevent chipping of the mouth.

[Brief description of drawings]

FIG. 1 is an enlarged schematic view of a half portion of a cross section of a bottle mouth portion of an embodiment of the present invention.

FIG. 2 is a schematic diagram showing the opening trajectory of the same as the conventional one.

FIG. 3 is a schematic view showing a bottle mouth portion of a conventional beer bottle.

FIG. 4 is a schematic view showing an enlarged half of a cross section of a bottle mouth portion of the above beer bottle.

FIG. 5 is an enlarged schematic view of the same tapping state as above.

FIG. 6 is a schematic diagram showing each mode of mouth opening.

[Explanation of symbols]

 1 Bottle mouth 2 Lip 3 Turnip 5 Throttling section 7 Top surface 8 Crown 12 Crown removal 13 Support point 14 Claw section 20 Opening locus 22 Notch section 23 Locking point 25 Thick section 27 Throttling section

Claims (1)

[Scope of utility model registration request] 1. A glass bottle having a crown bottle mouth, which is provided with an outer concave squeezing portion on an upper portion of a turnip connected to a lower lip portion, wherein the squeezing portion (27) of the glass bottle has a maximum outer diameter of the lip (2). b Locking, which is a contact point where the bent portion of the crown skirt portion at the time of plugging comes into contact with the vicinity of the connection point of both arcs by an outward arc of radius r _{6 and} an inward arc of radius r ₇ that continue from the immediate vicinity with the same diameter A cutout portion (22) whose outer shape is cut out in an annular shape so that the point (23) is located, and an outer shape circularly formed by an outward arc having a radius r ₅ from the vicinity of the minimum outer diameter of the inward arc of the cutout portion. Thick wall (2
5) is integrally formed with this, and the stopper opening (20) at the tip of the claw portion (14) of the crown remover (12) which is set so as to hit this thick portion at the time of opening the cap has a lip (2). ) Has a bottle cap for a crown, which is located at a predetermined distance outside the maximum outer diameter b of FIG. Glass bottle.