JPH0734836Y2 - Glass bottle - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass bottle sealed with a pill fur proof cap.

[0002]

2. Description of the Related Art A conventional glass bottle used in combination with a pill fur proof cap has a normal spiral thread and a bead portion. Such a glass bottle is sealed by covering the mouth of the glass bottle with a cylindrical cap made of a soft metal such as aluminum and rolling on the cap along the shape of the screw thread and the bead portion with a capping machine. When the cap is rotated counterclockwise when the cap is opened, the skirt of the cap engaged with the bead rotates in the same position,
Since the upper part of the cap engaged with the screw thread is pushed upward, the part of the sewing line formed between the cap and the skirt is cut, and the so-called pilfer proof function is exerted.

However, if the cap is mistakenly rotated in the reverse direction (clockwise direction) when the cap is opened, the screw thread formed on the cap by the capping machine will get over the screw thread of the glass bottle and the screw thread of the cap will become loose. However, there was a possibility that the cap could not be opened even if it was rotated in the correct direction after that.

[0004]

The present invention has been completed in order to solve the above-mentioned conventional problems and provide a glass bottle in which there is no possibility that the pill fur proof cap cannot be opened. Is.

[0005]

The present invention, which has been completed to solve the above-mentioned problems, provides a cap on a part of a thread of a bottle mouth portion sealed by a pill fur-proof cap.
It is characterized in that a slanted notch is formed to prevent the cap from reversing in such a manner that the screwing side is deep and the cap gradually becomes shallower toward the opposite side .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. In FIG. 1, 1 is a spiral thread formed on the mouth of a glass bottle, and 2 is a ring-shaped bead formed below it. In the present invention, an inclined notch 3 as shown in the drawing is formed in a part of the thread 1.

The notch 3 is deep on the lower side of the screw thread 1, that is, on the side where the cap is screwed in, and is gradually shallower toward the opposite side, whereby it is possible to prevent the cap from reversing. In addition, such a notch 3
Although it may be formed at only one place as shown in the drawing, it may be formed at several places depending on the opening torque.

[0008]

When the glass bottle of the present invention thus constructed is covered with a pill fur proof cap and rolled on by a capping machine, the cap 4 follows the shape of the notch 3 of the screw thread 1 as shown in FIG. Molded. Therefore, even if the cap 4 is mistakenly rotated in the opposite direction when the cap is opened, the recess 5 of the thread formed on the cap 4 bites into the notch 3 deepened on the screwing side, resulting in a large resistance. Cannot be rotated in the opposite direction. Therefore, the screw thread is prevented from being crushed by rotating the cap 4 in the reverse direction. The notch 3 is on the side where the cap is screwed in.
The slope is gradually shallower toward the opposite side, and there is little resistance when rotating the cap 4 in the correct direction, so rotating the cap 4 in the correct direction will make the pill fur proof cap easier. It can be opened.

In order to confirm the effect of the present invention described above, 20 glass bottles having the shape shown in FIG. 1 were manufactured,
After rolling on the pill fur proof cap made of aluminum, the torque required for reverse rotation was measured. As a result, when the same measurement was performed on 20 conventional glass bottles, the reverse rotation torque was minimum 27 kg-cm and maximum.
While it was 46 kg-cm 3 and an average of 34.5 kg-cm, the glass bottle of the present invention had a minimum value of 40 kg-cm and a maximum value of 70 kg-cm, which was unmeasurable. Thus, it was confirmed that the reverse rotation prevention effect of the present invention is remarkable.

[0010]

As described above, the glass bottle of the present invention prevents the cap from rotating backward when the cap is opened, thereby preventing the screw threads from being crushed and making it impossible to open the pill fur proof cap. Can be prevented.
Further, the glass bottle of the present invention can be easily manufactured by using a usual mold for forming a glass bottle, and there is no fear that the cost will increase. Therefore, the present invention has an extremely great practical value as a glass bottle that solves the conventional problems.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view showing an enlarged main part of the embodiment.

[Explanation of symbols]

 1 Thread 3 Notch 4 Cap

Claims (1)

[Scope of utility model registration request] 1. A cap is screwed into a part of a thread (1) of a bottle mouth portion sealed by a pill fur proof cap.
A glass bottle characterized by having an inclined notch (3) for preventing the cap (4) from reversing, which is deeper on the open side and gradually becomes shallower toward the opposite side .