JP3297409B2 - Glass bottle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass bottle equipped with an inner stopper and an outer lid used as containers for various beverages, seasonings and the like.

[0002]

2. Description of the Related Art Since a middle stopper is mechanically stoppered at once from the top of a bottle mouth, contents such as edible oil, seasoning,
It has been extremely difficult to remove a beverage or the like from the container after consumption. In recent years, bottles have been made as returnable as possible, and bottles and plastic inner stoppers have been separated and collected, and demand for recycling resources has increased.
As shown in Japanese Patent No. 84912, there has been proposed a glass bottle in which a vertical groove for removing a plug is provided immediately below a lip portion of a bottle mouth portion so that an inner plug can be easily removed from the bottle. Put your finger on the lower part of the plug from this flute, or insert a rod-shaped device such as a spoon handle from the flute into the inside of the outer cylinder wall of the plug, and pry the plug upward to remove the plug from the bottle. Can be removed. In such a glass bottle, only one vertical groove is provided.

[0003]

When the above-mentioned conventional glass bottle is formed, the final blow is completed in a finishing mold,
There is a problem that the opening of the bottle is easily deformed when opening the split die and releasing. This is because when there is only one vertical groove, there is a vertical groove forming part to form a vertical groove only in one of the split molds of the mouth mold, and there is no vertical groove forming part in the other, so when opening the mouth mold This is because the opening of the bottle is pulled toward the side where the vertical groove is formed. That is, in the vertical groove portion, the bond between the mold and the formed glass is strong, and the mold release is more difficult than in the case where there is no groove.

The present invention is intended to prevent deformation of the bottle mouth in the formation of such a glass bottle, prevent occurrence of defective products, improve the production yield, and further facilitate removal of the plug.

[0005]

According to the present invention, there is provided a glass bottle provided with a vertical groove just below a lip portion of a mouth for removing an inner plug fitted to the lip portion, the glass bottle being provided with two vertical grooves,
These flutes, disposed at a position substantially symmetric with respect to the seam axis of the mouth mold for molding the bottles, provided with a screw thread for screwing the outer lid below the longitudinal groove Rutotomoni, the screw thread 2 A thread
Place each screw from the side of one flute below the other flute
It is a glass bottle characterized by being laid out around .

In the present invention, a plurality of vertical grooves are provided, and the vertical grooves are arranged at positions substantially symmetrical with respect to the seam axis of the die for forming a bottle. The strength of the bond between the mold and the molded glass is almost equal,
The bottle mouth is not pulled to one side, so that deformation of the molded bottle mouth can be prevented.

[0007] Further, since there are a plurality of flutes, the flutes can be easily used when the consumer tries to remove the plug.

Since the thread for screwing the outer lid is provided below the longitudinal groove, the thread is not shortened or divided by the longitudinal groove. Therefore, when mounting the outer lid, there is no problem that the outer lid is obliquely covered and cannot be smoothly mounted, or the sealing property of the contents is deteriorated.

[0009] The longitudinal groove is two places, the thread is a two-start thread,
Each thread can be arranged so as to extend from the side of one longitudinal groove to below the other longitudinal groove. With such a configuration of the screw, the length from the upper end of the mouth to the screw can be minimized, and the size (height) of the outer lid can be suppressed.
The outer lid can be easily attached and detached by rotating the outer lid about half a turn.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. FIG. 1 is a front view of a glass bottle 1 of an embodiment, FIG. 2 is a front view of a state in which an inner stopper 10 is attached to a mouth of the glass bottle 1, FIG. 3 is a sectional view taken along the line AA in FIG. 5 is an explanatory view showing the relationship between the mouth of the glass bottle 1 and the mouth mold 20. FIG.

A lip 2 is provided on the outer periphery of the top of the mouth of the bottle 1.
However, an annular groove 3 is formed immediately below. Vertical grooves 4, 4 'are formed downward from the annular groove 3. As shown in FIG. 3, the vertical grooves are provided at two positions on the opposite side by 180 degrees, and are arranged at positions substantially symmetric with respect to the seam axis 24 of the die 20.

As shown in FIG. 5, a mouth mold 20 for forming a bottle is generally divided into two split dies 21 and 22, and a line when the mating surface 23 of each split die is viewed from above is shown. It is a seam shaft 24. Each split mold 21 and 22 has a seam shaft 2
Since the vertical groove forming portion 25 for forming the vertical groove 4 is provided at a position symmetrical with respect to the line 4, when the die is opened in the direction of the arrow C, the split dies 21 and 22 are respectively formed with the formed glass. Are equal in strength, and the bottle opening is not pulled to one side, so that deformation of the bottle mouth can be prevented.

In the present invention, the position of the vertical groove is desirably completely symmetrical with respect to the seam axis, but even if it is slightly shifted (for example, about 10% of the outer diameter of the bottle opening). In addition, the strength of bonding between each split mold and the formed glass becomes substantially equal, which has an effect of preventing deformation of the bottle mouth.

At the mouth of the bottle 1, for example, an inner plug 10 as shown in FIG. 2 is attached. The inner plug 10 has a pouring cylinder 11 erected at the center of the upper surface thereof, and a pull ring 14 inside thereof.
Is pulled open to open the spout.
An annular ridge 13 is formed on the inner periphery of the lower end of the outer cylinder wall 12 of the inner plug 10, and as shown in FIG.
, The inner plug 10 is fitted to the bottle opening.
An outer lid (not shown) is attached from above the inner stopper 10 by screwing into the threads 5, 5 'of the bottle mouth. Note that, in FIG. 4, a dotted line represents a cross section of a portion where no vertical groove is formed.

The threads 5, 5 ′ are two threads, and as shown in FIGS. 1 and 3, one thread 5 is formed by a longitudinal groove 4 ′ on the opposite side of one longitudinal groove 4. The thread 5 'is arranged so as to extend from the side of the vertical groove 4' to below the vertical groove 4 on the opposite side. Therefore, each of the threads 5, 5 'is provided over about half the circumference of the bottle and is not divided or formed short by the presence of the vertical grooves 4, 4'. The outer lid can be attached smoothly. Further, the sealing property of the outer lid does not deteriorate.

When removing the inner plug 10 from the bottle 1, put a finger on the lower part of the outer cylinder wall 12 of the inner plug 10 from the vertical groove 4, or insert a rod-shaped device such as a spoon handle from the vertical groove 4 into the inner plug. 1
It can be easily performed by inserting the inner plug 10 inside the outer cylinder wall 12 and prying the inner plug 10 upward.

After the contents of the bottle 1 have been consumed, the inner stopper 10 is easily removed. Therefore, the bottle 1 can be easily used as a returnable bottle to be washed and filled with the contents again, and the bottle and the inner stopper are separated and collected, recycled as raw materials of glass and plastic, and the resources are reused. It is easy to realize.

[0018]

Industrial Applicability The present invention prevents deformation of a bottle opening in the formation of a glass bottle to prevent the occurrence of defective products, improves the production yield, and, when a consumer removes a plug, forms a vertical groove. Can be easily used. In addition, the outer lid can be smoothly mounted, and the sealing property of the outer lid does not deteriorate.

[Brief description of the drawings]

FIG. 1 is a front view of a glass bottle 1 according to an embodiment.

FIG. 2 is a front view showing a state in which an inner plug 10 is attached to a mouth of the glass bottle 1;

FIG. 3 is a sectional view taken along line AA in FIG.

FIG. 4 is a vertical sectional view taken along the line BB in FIG. 2;

FIG. 5 is an explanatory diagram showing a relationship between a mouth portion of the glass bottle 1 and a mouth mold 20.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottle 2 Lip part 3 Annular groove 4, 4 'longitudinal groove 5, 5' Screw 10 Inner plug 11 Discharge cylinder 12 Outer cylinder wall 13 Annular ridge 14 Pull ring 20 Mouth type 21 Split type 22 Split type 23 Fitting surface 24 Seam shaft 25 Vertical groove forming part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 1/02 B65D 41/04 B65D 47/12

Claims (1)

(57) [Claims] 1. A glass bottle provided with a vertical groove just below a lip portion of a mouth for removing an inner plug fitted to the lip portion, two such vertical grooves are provided, and these vertical grooves are formed into a bottle. disposed at a position substantially symmetric with respect to the seam axis of the mouth type that, Ru provided screw threads for screwing the outer lid below the longitudinal groove the co
In addition, the above-mentioned screw is a two-thread screw, and each screw is
A glass bottle characterized by being arranged so as to extend from the side of the vertical groove to below the other vertical groove.