JP2003002668A - Glass container and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass container which is excellent in an ornamental property and the inner reflectivity of light, and also to provide a method for producing the glass container, by which the glass container can efficiently be obtained. SOLUTION: In the glass container having an inner protrusion, and the method for producing the glass container, when the height of the glass container is determined as A1 (mm) and the height of the inner protrusion is determined as A2 (mm), the ratio of A2/A1 is made within the range of 0.1 to 0.8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass container having an internal protrusion and a method for manufacturing the same, and more specifically,
TECHNICAL FIELD The present invention relates to a glass container having excellent internal reflectance of light and a method for manufacturing a glass container capable of efficiently obtaining such a glass container.

[0002]

2. Description of the Related Art Conventionally, since glass is chemically stable and excellent in transparency, it has been a general-purpose material used for forming ornaments, containers, etc., for example, when it is used for containers. As a result, it is possible to obtain excellent protection and decorativeness for the contents. However, with the recent diversification of living environment and feeling of living, there has been a demand for glass having further improved decorativeness and internal reflection of light. That is, there has been proposed a glass container in which the glass surface has a complicated pattern or shape, or the glass container itself is deformed, and further, a projection is provided on the outer surface. However, the glass having such a complicated shape has insufficient impact resistance and is fragile, or it is economically disadvantageous because conventional manufacturing equipment cannot be used. It was observed. In addition, when a complicated pattern or shape was applied to the glass surface, it was sometimes difficult to apply it to the glass surface, or it was excessively restricted, as compared with a smooth glass surface. Furthermore, it has been found that ordinary glass containers, such as glass bottles, are not easy to handle because their bottom surfaces are substantially flat. That is, when the glass bottle is transferred or the surface of the glass bottle is spin-coated, since the opened bottle mouth is used as a knob, the bottle mouth may be damaged, and the transfer speed or the coating speed is limited. There was a problem.

On the other hand, a glass container is usually manufactured by one-time blow molding, but it has been proposed to apply such a blow molding method to a glass container having an internal protrusion. However, when trying to manufacture a glass container having a relatively high internal protrusion by blow molding using one baffle, it is difficult to blow air uniformly, and it is easy to form the internal protrusion into a predetermined shape. It wasn't. Further, if the air cannot be blown uniformly, the wall thickness of the internal protrusions is not made uniform, and the impact resistance of the glass container having the internal protrusions and the internal reflectivity of light are reduced. In addition, when it was attempted to form the internal protrusions using only the baffle, the unevenness of the baffle and the molded glass container were seized, which made it difficult to remove the glass container. Furthermore, when increasing the height of the internal protrusion,
MHART DATA SH, which is a glass-related regulation
Judging from the EET (IS-425-2-650), the design is such that the "F" value indicating the funnel mounting position according to the funnel width ("A" value) must be relatively large. The above problem was also seen.

[0004]

The inventors of the present invention have made extensive studies in view of the above problems, and have proposed a glass container having internal protrusions, as well as specifying the height and shape of the internal protrusions. It has been found that, by doing so, it is possible to provide a glass container that is excellent in decorativeness and internal reflection of light, is easy to handle, and can be easily manufactured using conventional manufacturing equipment. Therefore, an object of the present invention is to provide a glass container having an internal protrusion that is excellent in decorativeness and internal reflectivity of light, is easy to handle, and can be easily manufactured using conventional manufacturing equipment. is there. Another object of the present invention is to
Even a glass container with a relatively large internal protrusion,
It is to provide a manufacturing method that can be effectively obtained.

[0005]

According to the present invention, in a glass container having an internal protrusion, the height of the glass container is A1 (mm), and the height of the internal protrusion is A2 (m).
m), the ratio of A2 / A1 is 0.1 to 0.8
A glass container having a value within the range is provided, and the above-mentioned problems can be solved. That is, with this structure, the light can be effectively internally reflected not only by the walls of the surrounding glass container but also by the internal protrusions of a predetermined height, so that it is extremely attractive and decorative. The internal reflectivity of can be revealed. Therefore, for example, when the contents are contained in the glass container regardless of the amount, the aesthetic value of the glass container can be remarkably enhanced. Moreover, if the internal protrusions have such a height, the impact resistance is less likely to be excessively lowered, and further, it can be easily manufactured using conventional manufacturing equipment.

Further, in constructing the glass container of the present invention, when the volume of the glass container is D1 and the volume of the internal protrusion is D2, the ratio of D2 / D1 is 0.1 to 0.7.
It is preferable that the value is within the range. With this structure, the balance between the internal reflection of light by the internal protrusions and the impact resistance of the glass container becomes better.

Further, in constructing the glass container of the present invention, it is preferable that the internal protrusion is hollow. With such a configuration, it is possible to reduce the weight of the obtained glass container even when the internal protrusion is provided.
In order to further enhance decorativeness and internal reflection, one or more of a glass material different from the glass container, a colored resin material, a transparent resin material, a paper material, a metal material, a ceramic material, or the like is used in the hollow portion of the inner protrusion. It is also possible to fill a combination of two or more.

In constructing the glass container of the present invention, the internal protrusions are triangular pyramids, quadrangular pyramids, diamond pyramids,
It is preferably one of a cone and a heart shape. According to this structure, the internal projection having the special shape can reflect the light more effectively, so that an extremely attractive decorative property can be exhibited.

Further, in constructing the glass container of the present invention, it is preferable that the internal protrusions protrude from the bottom surface of the glass container. With such a configuration, there is less risk of the impact resistance lowering, and it is also possible to easily manufacture using conventional manufacturing equipment.

Another aspect of the present invention is a method of manufacturing a glass container having an internal protrusion, which is a first method for forming a glass container having a rough shape from molten glass by using a rough mold, a funnel and a baffle. And a second step for forming a final glass container by using a finishing die and a bottom, and the height of the baffle used in the first step is B1 and is used in the second step. When the bottom height is B2, the value of B1 / B2 is 0.1
A method for manufacturing a glass container having a value within the range of 0.8 is provided, and the above-mentioned problems can be solved. That is, by carrying out in this way, it becomes easy to control the wall thickness of the internal protrusions, and as a result, the decorativeness and internal reflection of light of the obtained glass container are stabilized and uniformed, and the production rate is increased. It is also possible to raise and manufacture.

In carrying out the method for manufacturing a glass container of the present invention, it is preferable to cool the tip of the bottom when molding the glass container from molten glass.
By carrying out in this way, the bottom and the molten glass are less likely to stick to each other, and the production rate can be increased to manufacture the glass container.

In carrying out the method for producing a glass container of the present invention, it is preferable to use a bottom having a nickel material lined at its tip as the bottom. By carrying out in this manner, the bottom and the molten glass are less likely to be seized due to the function of the lining having the releasing effect and the cooling effect, and the glass container can be manufactured at a higher production rate. Is.

In carrying out the glass container manufacturing method of the present invention, the height of the funnel is 35 to 56.
It is preferable to use a funnel with a value within the range of mm. According to this structure, even if the value is equal to or lower than the height of the funnel defined by MHART DATA SHEEET, which is a collection of dimension specifications of glass-related products, it is possible to effectively prevent the interference between the baffle and the funnel. .

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A first embodiment is a glass container having an internal protrusion, wherein the height of the glass container is A1 (mm). When A2 (mm), the ratio of A2 / A1 is 0.1
The glass container has a value within the range of 0.8. Less than,
The constituent materials will be described in detail.

1. Glass container (1) shape The shape of the glass container is not particularly limited, and depending on the application, a bottle neck type glass bottle, a rectangular glass bottle, a cylindrical glass bottle, a deformed glass bottle, a rectangular glass box, Examples thereof include a cylindrical glass box and a deformed glass box. An example of a preferable glass container is shown in FIG. The outer shape is a bottle neck type glass bottle 10,
It is composed of a bottle mouth 14, a body 16 and a bottom portion 18 from above, and an internal protrusion composed of a diamond weight described later is provided on the upper surface of the bottom portion 18.

Further, the height of the glass container (may be referred to as A1) can be appropriately changed, but the height of the glass container is, for example, 20 to 150 m.
A value within the range of m is preferable. The reason for this is that when the height of the glass container is less than 20 mm, it becomes difficult to form the internal protrusions, or even when the internal protrusions are provided, the size of the internal protrusions becomes excessive. This is because there is a case where it is limited, and excellent decorativeness and internal reflection of light may not be obtained. On the other hand, the height of the glass container is 1
If it exceeds 50 mm, the impact resistance of the glass container may be significantly reduced when the internal protrusion is provided. Therefore, the height of the glass container is 30 to 100 m.
More preferably, the value is within the range of m, and is 40 to 80.
It is more preferable to set the value within the range of mm.

(2) Material The type of glass constituting the glass container is not particularly limited, and examples thereof include soda glass, borosilicate glass, lead glass (crystal glass), quartz glass, and phosphate glass. Etc. Note that it is more preferable to use soda glass because it is possible to easily form the internal protrusion with higher accuracy.

As the glass constituting the glass container, it is preferable to use colorless transparent glass, but it is also preferable to use colored transparent glass or colored translucent glass.
When colorless transparent glass is used, the color of the contents stored in the glass container can be sufficiently recognized outside, and the color of the contents can be clearly recognized by utilizing the internal reflection of light. . On the other hand, in the case of using colored transparent glass or colored translucent glass, it is possible to obtain a glass container having more excellent decorativeness by utilizing the internal reflection of light and adding the color of the contents.

2. Height of Internal Protrusion (1) In the glass container of the first embodiment, the height of the internal protrusion (sometimes referred to as A2) is the height of the glass container (A).
1), the ratio of A2 / A1 is 0.1 to 0.
It shall be a value within the range of 8. The reason for this is such A2 / A1
If the ratio is less than 0.1, the internal reflection of light by the internal protrusions is significantly reduced, and the handling of the glass container is reduced. On the other hand, such A2 / A
This is because when the ratio of 1 exceeds 0.8, the impact resistance of the obtained glass container is lowered and the production becomes difficult. Therefore, since the internal reflection of light in the glass container and the like, the balance between impact resistance and the like becomes better,
The ratio of A2 / A1 is more preferably set to a value within the range of 0.2 to 0.7, further preferably set to a value within the range of 0.3 to 0.6, and 0.4 to 0. Most preferably, the value is within the range of 0.6. It should be noted that the height of the glass container is 1 in the example of the glass container 10 shown in FIG.
4 is the distance excluding the length of 4, that is, the height of the internal projection 12 is the glass container 10 shown in FIG.
In the example of, the distance is A2 from the bottom surface 15 of the glass container to the apex of the internal protrusion.

Here, referring to FIG. 9, the ratio (A) of the height (A2) of the internal protrusions to the height (A1) of the glass container.
The relationship between 1 / A2) and the internal reflectivity (relative value) and impact resistance (relative value) of light will be described. That is,
The horizontal axis of FIG. 9 shows the ratio of A1 / A2,
On the vertical axis, the evaluation points of the internal reflection of light and the impact resistance are shown numerically (⊚: 5 points, ∘: 3 points, Δ: 1 point, ×: 0 points). And, as can be easily understood from FIG. 9,
When the ratio of A1 / A2 is a value within the range of about 0.1 to 0.8, both the internal reflection of light and the impact resistance are at a practically acceptable value, and 0.2 to 0. If the value is within the range of 0.7, a relative value of 1 or more is obtained for both internal reflection of light and impact resistance. Also, A1 / A
When the ratio of 2 is a value within the range of 0.3 to 0.6, a relative value of 3 or more is obtained for both internal reflection of light and impact resistance, and a value of 0.4 to 0.6 is obtained. If the value is within the range,
It was confirmed that a high relative value of 4 or more was obtained for both internal reflection of light and impact resistance.

The height (A2) of the internal protrusions, that is, the length from the bottom surface of the glass container to the apex of the internal protrusions is preferably set to a value within the range of 10 to 60 mm. The reason for this is that if the height of the internal protrusions is less than 10 mm, the rate of internal reflection of light by the internal protrusions may be significantly reduced, or the handling of the glass container may be reduced. On the other hand, the height of the internal protrusion is 6
This is because if it exceeds 0 mm, the impact resistance of the glass container to be obtained may be deteriorated or the production may be difficult. Therefore, since the balance between the internal reflectance of light in the glass container and the impact resistance becomes better, it is more preferable to set the height of the internal protrusions in the glass container to a value within the range of 20 to 50 mm. It is more preferable to set the value within the range of 25 to 40 mm.

(2) Volume The volume (volume) of the internal protrusions is not particularly limited. For example, when the volume of the glass container is D1 and the volume of the internal protrusions is D2, D2 / D1 It is preferable that the ratio is set to a value within the range of 0.1 to 0.7. The reason for this is that if the D2 / D1 ratio is less than 0.1, the internal reflectivity of light by the internal protrusions may decrease, while the D2 / D1 ratio is
This is because if the value exceeds 0.7, the impact resistance of the glass container may decrease. Therefore, D2 / D1
Is more preferably in the range of 0.2 to 0.6, and the ratio of D2 / D1 is more preferably in the range of 0.25 to 0.5.

(3) Shape Further, the shape of the internal projection is not particularly limited, but for example, a triangular pyramid, a cone as shown in FIG. 6, a diamond pyramid as shown in FIG. 1, and a diamond cone as shown in FIG. A square pyramid, a heart shape as shown in FIG. In addition,
In each drawing, in order to distinguish it from the outer shape of the glass container,
The contours of the internal protrusions 12, 66, 76, 86 are shown in dotted lines. Further, in FIG. 8B, a plan view of the heart-shaped internal projections 86 is also shown so that the shape of the heart-shaped internal projections 86 can be easily understood. In this way, if the shape of the internal projection is a quadrangular pyramid (including other polygonal pyramids) or a cone, there is an advantage that it can be formed relatively easily. Further, if the shape of the internal protrusion is a diamond pyramid or a heart shape, there is an advantage that superior decorativeness and internal reflection of light can be obtained.

(4) Structure The internal protrusions may have a solid structure (non-hollow) or a hollow structure. However, by making the internal projection have a hollow structure, the weight of the internal projection can be reduced as compared with the case where the internal projection has a solid structure. That is, by making the internal projection have a hollow structure, the weight of the obtained glass container can be reduced. Therefore, it can be said that it is more preferable to make the internal projection have a hollow structure in order to secure the lightness of the glass container. In addition, since the internal protrusion has a hollow structure, one or two of a glass material, a colored resin material, a transparent resin material, a paper material, a metal material, a ceramic material, a liquid material, or the like different from the glass container is provided in the hollow portion. It is also possible to fill the above combinations. Further, it is also preferable to fill glass particles or glass fibers in the hollow portion of the internal protrusion, and then laminate tapes or plates on the opening of the hollow portion in order to further fix these fillings. Therefore, the internal protrusion has a hollow structure, and by inserting the filler therein,
The decorativeness of the glass container and the internal reflection of light can be further enhanced. Further, by forming the internal protrusions in a hollow structure, it is possible to attach a light bulb or a light emitting member to the hollow portion. Therefore, an internal protrusion having a light emitting function can be provided, and as a result, the decorative property of the glass container and the internal reflectivity of light can be further enhanced. That is, it can be said that it is preferable that the internal protrusions have a hollow structure in view of the decorative property of the glass container and the internal reflectivity of light. Further, by forming the internal protrusions to have a hollow structure, they can be formed relatively easily by using a blow molding method. Therefore, it can be said that it is preferable that the internal protrusions have a hollow structure from the viewpoint of manufacturing.

(5) Position and Number The position and number of the internal protrusions are not particularly limited, and one or a plurality of them can be formed at any position on the glass container. That is, the position of the internal projection may be on the bottom surface, the side surface, or the edge portion of the glass container, and the number of the internal projections may be one or more. However, as shown in FIG. 1 and FIG. 6 to FIG. 8, the internal projections are bottom surfaces 15, 68, 7 of the respective glass containers.
It is preferable that it projects from 8, 88. The reason for this is that by configuring in this way, the risk of impact resistance of the glass container is less likely to decrease, and it is also possible to easily manufacture by blow molding or the like using conventional manufacturing equipment. is there. In order to facilitate formation, the number of internal protrusions is preferably 3 or less, more preferably 2 or less, and even more preferably 1.

[Second Embodiment] In the second embodiment, as shown in FIG. 10, a rough mold 43, a funnel 30 and a baffle 20 are used to mold a glass container 102 in a rough shape from a molten glass 31. First step and finishing die 1
No. 03 and the bottom 104 are used for forming a final glass container, and the height of the baffle used in the first step is B1, and the height of the bottom used in the second step is B1. Let B2 be B1 /
It is a method for producing a glass container in which the value of B2 is within the range of 0.1 to 0.8. Hereinafter, the constitutional requirements will be described in detail.

1. Blow Molding Die In the second embodiment, since a glass container having an internal protrusion can be manufactured with high accuracy and high productivity by blow molding, a rough mold 43 as shown in FIG. 4 and FIG. And it is preferable to use the finishing mold 103. Therefore, the blow molding die will be described below separately for the rough mold, the funnel and the baffle used in the first step, and the finishing mold and the bottom used in the second step.

(1) Rough mold The rough mold can be appropriately changed depending on the desired shape of the glass container. However, as an example, when a glass bottle having an internal protrusion of a diamond weight is blow-molded, a blow-molding mold (coarse mold) 43 as shown in FIGS. 4 and 10 is used to form a glass container 101 having a rough shape. Preferably. Here, with the center line shown in FIG. 4 as a boundary, the state of the blow molding die shown in (A) is
Rough mold 43 for blow molding the bottle mouth and funnel 3
0 shows the positional relationship between the baffle 20 and (B).
The state of the blow molding die, which is represented by, indicates the positional relationship between the rough mold 43, the funnel 30, and the baffle 20 before and after the blow molding. Also, when performing blow molding,
The inner surface of the rough mold 43 is preferably subjected to a mold release treatment. For example, it is preferable to provide a lining made of a nickel alloy or the like on the inner surface of the rough mold, or apply a release agent to the inner surface of the rough mold. By performing the mold release treatment in this way, it is possible to manufacture a glass container having an internal protrusion with high accuracy and high productivity. Further, the rough mold and the glass container having the rough shape are formed so that the rough mold is not externally or internally
Alternatively, it is preferable to be able to cool from either one of the sites.

(2) Finishing type The finishing type can also be appropriately changed depending on the desired shape of the glass container. As an example, when the glass bottle 10 having the internal protrusions 12 of the diamond weight as shown in FIG. 1 is blow molded, a blow molding die (finishing die) 103 as shown in FIG. It is preferable to form the glass containers 10 and 102 having the shape of. Further, similar to the rough mold described above, it is possible to provide a lining made of a nickel alloy or the like on the inner surface of the finishing mold, apply a release agent, or cool the finishing mold from outside and inside, or either one. Is preferred.

2. The funnel can be appropriately changed depending on the desired shape of the glass container, the shape of the blow molding die, the shape of the molten glass (parison) outlet, and the like. As an example, it is preferable to use a funnel 30 as shown in FIGS. 3 and 10 to accurately insert a molten glass (parison) 31 into the rough mold. Here, the height of the funnel used is preferably set to a value within the range of 35 to 56 mm. The reason for this is that the baffle stroke amount may be excessively reduced when the funnel height is less than 35 mm. On the other hand, if the funnel height is 56 mm or more, the funnel may interfere with the baffle. For example, in the case of the positional relationship shown in FIG.
When rotating down, the protruding part of the baffle will interfere (contact) with the upper part of the funnel. The height of the funnel is measured from the bottom surface 35 of the funnel shown in FIG.
It is defined as the linear distance to the position 36 corresponding to the upper surface.

MHR, which is a glass-related regulation
T DATA SHEET (IS-425-2-6
In 50), the attachment position of the funnel is represented by the “F” value, and the minimum value of the “F” value is defined according to the width of the funnel (“A” value). When the funnel width (“A” value) is 77.8 mm, the “F” value is
It is specified to be 58 mm or more. On the other hand, in the present invention, even if the width of the funnel is around 78 mm, the "F" value indicating the attachment position of the funnel is 35 to 56 mm.
The value is within the range. Therefore, the glass container of the present invention is out of the range of the "F" value defined by MHART DATA SHEEET. However,
In the present invention, by strictly controlling the height of the rough mold and the clearance between the funnel and the rough mold,
It has been found that it is possible to manufacture a glass container having a predetermined internal protrusion without the funnel and the baffle interfering with each other even if they are out of the range of the "F" value defined by MHART DATA SHEEET.

3. Baffle and Bottom The second embodiment is characterized in that a baffle is used in the first step, a bottom is used in the second step, and their heights are made different.

(1) Baffle The baffle can be appropriately changed depending on the desired shape of the glass container, the shape of the blow molding die, and the like.
However, as an example, when a glass bottle having an internal protrusion such as a diamond weight or a polygonal weight is blow-molded, a rough mold 4 is used by using a baffle 20 as shown in FIGS. 2 and 10.
3 and glass bottle 10 having a rough internal protrusion
1 is preferably formed.

Here, the height of the baffle is preferably lower than the height of the bottom, which will be described later. The reason for this is
If the height of the baffle is higher than the height of the bottom, it may be difficult to control the internal projection to have a predetermined shape when forming the internal projection, or it may be difficult to control the thickness of the internal projection. Therefore, impact resistance may decrease. Therefore, it is more preferable to set the height of the baffle to a value within the range of 10 to 90% with respect to the height of the bottom (100%), and it is further preferable to set it to a value within the range of 20 to 80%. It is most preferable to set the value within the range of 30 to 70%. The height of the baffle is defined as the linear distance from the top of the baffle to the installation surface on which the protrusion 22 is provided. In the case of the baffle 20 shown in FIG. 2, it is the linear distance represented by B1.

When the height of the baffle is B1 (mm) and the height of the bottom described later is B2 (mm), the ratio of B1 / B2 is a value within the range of 0.1 to 0.8. It is preferable that The reason for this is that if the B1 / B2 ratio is a value of less than 0.1, the internal protrusions may be damaged when blow molding is performed using a bottom, and relatively high internal protrusions are substantially formed. Because it will be difficult. On the other hand, if the B1 / B2 ratio exceeds 0.8, the internal protrusions may be damaged when blow molding is performed using a baffle, making it difficult to substantially form relatively high internal protrusions. This is because Therefore, the ratio of B1 / B2 is more preferably set to a value within the range of 0.2 to 0.7, and further preferably set to a value within the range of 0.3 to 0.6.

Further, the height of the baffle is specifically set to 10 to 10.
A value within the range of 40 mm is preferable. The reason for this is that when the height of the baffle is less than 10 mm, the ratio of light reflection by the obtained internal protrusions is significantly reduced,
This is because the handleability of the glass container may deteriorate. On the other hand, if the height of the baffle exceeds 40 mm, the impact resistance of the obtained internal projections may decrease. Therefore, the height of the baffle is 20
It is more preferable to set the value within the range of 40 mm to 2 mm.
It is more preferable to set the value within the range of 5 to 40 mm.

(2) Bottom Regarding the form of the bottom used in the second step, depending on the desired shape of the glass container, the shape of the blow molding die, etc.
It can be changed appropriately. For example, in the case of finally blow-molding a glass bottle having internal protrusions such as diamond weights or polygonal weights, a bottom 104 as shown in FIG.
It is preferable to form 02.

Height Here, at least the height of the bottom is preferably higher than the height of the baffle. With such a configuration, the thickness of the internal protrusions can be easily controlled, and the decorative property and the internal reflectivity of light can be stabilized and made uniform, and the production speed can be increased for manufacturing. Is. In addition, the bottom height is specifically 10-4
A value within the range of 0 mm is preferable. The reason for this is that when the height of the bottom is less than 10 mm, the internal reflection of light by the obtained internal protrusions is significantly reduced,
This is because the handleability of the glass container may deteriorate. On the other hand, if the bottom height exceeds 40 mm,
This is because the impact resistance of the obtained internal projections may be reduced or the manufacturing may be difficult. Therefore, the height of the bottom is more preferably set to a value within the range of 20 to 40 mm, further preferably set to a value within the range of 25 to 40 mm. The height of the bottom is also defined as the linear distance from the apex to the installation surface on which the protrusion is provided, like the baffle. In the case of the bottom 50 shown in FIG. 5, the linear distance is represented by B2. is there.

Cooling In addition, at the tip of the bottom, that is, at the time of blow molding,
It is preferable to cool the part of the bottom that forms the internal protrusion. The reason for this is that by cooling the portion where the internal protrusions are formed, the solidification of the glass is promoted, and it is possible to effectively prevent baking between the molded glass container and the portion where the internal protrusions are formed. Specifically, as shown in FIG. 10 (e), it is preferable to embed a coolant ejection nozzle 105 at the tip of the bottom 104. And
It is preferable that the jet nozzle 105 blows a cooling agent such as air toward the tip of the bottom 104 to cool the bottom 104 from the inside. With this configuration, for example, the temperature at the tip of the bottom can be 800 ° C. or lower, and more preferably 700 ° C.
The following temperatures can be used, more preferably 60
The temperature can be 0 ° C. or lower. Therefore, as described above, it is possible to effectively prevent baking between the molded glass container and the portion where the internal protrusion is formed.

Lining Further, as shown in FIG. 5, it is preferable that a ceramic material containing nickel as a main component is laminated as a lining 51 around the tip portion of the bottom 50. The reason for this is that by lining the region where the internal protrusions are formed, it is possible to effectively prevent baking between the molded glass container and the region where the internal protrusions are formed. In addition, the thickness of the lining, the effect of preventing baking,
In view of the precision of the blow-molded glass container, for example, it is preferable to set the value within the range of 10 to 10,000 nm.

4. Steps Hereinafter, steps for carrying out the glass container manufacturing method according to the second embodiment will be described in detail with reference to FIGS. 10A to 10E as appropriate.

(1) Coarse Mold Installation Process As shown in FIG. 10A, this is a process of installing (preparing) the rough mold 43 at a predetermined place such as a manufacturing line. Then, the rough mold installation step is a part of the first step. Here, the rough mold to be installed is preferably the rough mold as described in 1 (1). Further, as shown in FIG. 10A, it is preferable to provide a plunger 40 at a portion corresponding to the bottle mouth. The reason is Plunger 4
This is because it is possible to easily provide an air blowing port through the 0.

(2) Funnel Installation Process and Molten Glass (Parison) Insertion Process As shown in FIG.
3 (3) and a molten glass lump outlet (not shown) are installed (prepared), and a molten glass lump (parison) 31
Is a step of inserting into the rough mold 43. And these processes are also a part of 1st process. Here, when the funnel 30 is installed on the rough mold 43, it is preferable to lower it onto the rough mold 43 while rotationally moving it through a funnel arm (not shown) in a production line or the like. This is because such an installation can effectively prevent interference between the funnel and a baffle described later. Further, it is usually preferable to insert the lump 31 of the molten glass into the rough mold 43 by passing through the central portion of the funnel 30. This is because a glass container having a desired shape can be easily obtained by carrying out in this manner.

(3) Baffle installation process and screw cap molding process As shown in FIG. 10 (c), above the funnel 30,
The baffle 20 is installed (prepared) and the baffle 2
It is a step of blowing air from the 0 side to form the screw mouth. And these processes are also a part of 1st process. Here, when installing the baffle 20, in a manufacturing line or the like, it is preferable that the baffle 20 is rotated and moved onto the rough mold 43 and the funnel 30 via a baffle arm (not shown). This is because by installing the baffle 20 in this way, the above-mentioned interference with the funnel 30 can be effectively prevented even if the baffle 20 is installed quickly. Further, when air is blown from the side of the baffle 20, it is preferable to use the blowing ports 21 provided on both wings of the baffle 20. At this stage, it is preferable that the baffle 20 and the molten glass do not come into direct contact with each other. That is, when the baffle 20 and the molten glass are in contact with each other, the rough mold 4 is blown from the blowing port 21.
This is because bubbles may be generated when air is blown into the inside of 3 and it may be difficult to carry out the step of forming the screw cap.

(4) Molding step of glass container having rough internal projections In this step, the baffle 20 is placed directly on the rough mold 43, and then a glass container having rough internal projections is formed. And this process is also a part of the first process. That is, the baffle 20 is temporarily removed from the rough mold 43, the funnel 30 is removed in the meantime, and as shown in FIG. This is a step of blow molding.

(5) Blow Molding Step After setting the finishing mold 103 and the bottom 104,
This is a step of transferring the glass container 101 having a rough shape to the lower side of the finishing mold 103 and finally blow molding a desired glass container 102 as shown in FIG. The blow molding process is a part of the second process. At this stage, as described above, the bottom 104
However, although the protrusion height is higher than the baffle 20,
Since the baffle 20 forms a schematic shape of a portion corresponding to the internal protrusion of the glass container, the bottom 10
4, it is possible to easily form the internal protrusion having a desired height. The finishing die 103 and the bottom 104
Also in the blow molding process using, it is preferable to cool from the inside by blowing a coolant, for example, air, from the jet nozzle 105 provided at the tip of the bottom 104 to the tip of the bottom 104. This is because such cooling can effectively prevent baking between the molded glass container and the portion where the internal protrusion is formed.

[0047]

The contents of the present invention will be described in more detail with reference to the following examples. However, the technical scope of the present invention is not limited to the description of only these examples, and can be appropriately changed within the scope of the object of the present invention.

[Example 1] 1. Preparation of glass container (1) First step As shown in FIGS. 10 (a) and 10 (b), a rough mold 4 was used.
3 and funnel 30 are prepared respectively,
I installed them in layers. Then, a lump (parison) 31 of molten glass is put through a funnel 30 arranged on the rough mold 43 from an outlet (not shown) for the molten glass to form a rough mold 43.
Inserted inside. Then, as shown in FIG. 10C, the baffle 21 was installed above the funnel 30. Next, air was inserted using the blowing port 21 of the baffle 21 to form a screw port by so-called blow molding. Then, the baffle 21 was temporarily removed from the rough mold 43, and the funnel 30 was removed. And FIG.
As shown in FIG. 0 (d), the baffle 21 was placed directly on the rough mold 43, and the glass container 101 having the internal protrusions of the general shape was blow-molded, and the first step was completed.

(2) Second Step Next, as shown in FIG. 10 (e), after the finishing die 103 and the bottom 104 are installed in predetermined places, the rough glass container 101 obtained in the first step. The finishing die 10
The inside of the bottle was placed in the container with the direction of the bottle mouth reversed. Then
While inserting air from the nozzle 106 on the bottle mouth side, while cooling the tip of the bottom 104 with air from the inside,
A glass container (bottle neck type glass bottle) 102 having an internal protrusion of a diamond weight was formed by blow molding. The ratio A1 / A2 between the height (A1) of the glass bottle and the height (A2) of the internal protrusion is 0.5, and specifically, the height (A1) of the glass bottle is 50 mm,
The height (A2) of the internal protrusion on the bottom of the glass bottle is 3
A bottle neck type glass bottle 102 having a size of 5 mm was produced.

2. Evaluation of Glass Container (1) Evaluation 1 (Internal Reflection of Light) In a dark room, a spot light (diameter 10 mm) was incident from the outside into a glass container containing water up to half the height,
The internal reflectance of light was visually observed and evaluated according to the following criteria. ⊚: Internal reflection of light is noticeably observed. ◯: Internal reflection of light is sufficiently observed. Δ: Internal reflection of light is slightly observed. X: No internal reflection of light is observed.

(2) Evaluation 2 (impact resistance) The impact resistance of the obtained glass container was evaluated according to the following criteria.
evaluated. ⊚: Internal projections do not break even when the glass container is dropped from above by 2 m. ◯: Even if the glass container is dropped from 1 m above, the internal protrusion does not break. Δ: Even if the glass container is dropped from above 50 cm, the internal protrusion does not break. X: When the glass container is dropped from 50 cm above, the internal protrusion is broken.

(3) Evaluation 3 (Appearance) The appearance of the obtained glass container was evaluated according to the following criteria. ⊚: The glass container has a desired shape and no variation in wall thickness is observed at all. ◯: The glass container has a substantially desired shape, and slight variations in wall thickness are observed. Δ: The glass container is close to the desired shape, but a slight variation in wall thickness is observed. X: The glass container has a different shape from the desired shape, and the thickness variation is remarkably observed.

(4) Evaluation 4 (Handlability) The handleability of the obtained glass container was evaluated according to the following criteria. ◎: Insert the middle finger into the internal protrusion and put the glass bottle in 10m.
It can be moved more than that. Good: The glass finger can be moved by 5 m or more by inserting the middle finger into the internal protrusion. Δ: The glass bottle can be moved by 1 m or more by inserting the middle finger into the internal protrusion. X: The middle finger cannot be inserted into the internal protrusion.

[Embodiment 2] In Embodiment 2, the ratio A1 / the height (A1) of the glass bottle and the height (A2) of the internal projection is A1 /.
A glass bottle was prepared and evaluated in the same manner as in Example 1 except that A2 was 0.3 and the height (A2) of the internal protrusion was 15 mm. As a result, in Example 2, as compared with Example 1, the ratio of A1 / A2 was decreased, so that internal reflection of light and handleability were slightly deteriorated, but excellent impact resistance and appearance were obtained, respectively. Was given.

[Embodiment 3] In Embodiment 3, the ratio A1 / the height (A1) of the glass bottle and the height (A2) of the internal protrusion is A1 /.
A glass bottle was prepared and evaluated in the same manner as in Example 1 except that A2 was 0.2 and the height (A2) of the internal protrusion was 10 mm. As a result, in Example 3, as compared with Example 1, the ratio of A1 / A2 was further reduced, so that the internal reflectivity of light and the handleability were further deteriorated, but the excellent impact resistance and the appearance were respectively improved. Was obtained.

[Embodiment 4] In Embodiment 4, the tip of the bottom is not cooled by air, and the ratio of the height (A1) of the glass bottle to the height (A2) of the internal protrusion is A1 /.
A glass bottle was prepared and evaluated in the same manner as in Example 1 except that A2 was 0.5. As a result, the internal protrusion of the glass bottle is partially burned against the tip of the bottom,
The shape of the glass bottle was slightly deformed, making it a little difficult to remove from the finishing mold.

[Comparative Example 1] In Comparative Example 1, the ratio of the height (A1) of the glass bottle to the height (A2) of the internal protrusion A1 /
A2 is set to 0.05, and the height of the internal protrusion is specifically (A2)
A glass bottle was prepared and evaluated in the same manner as in Example 1 except that the thickness was 47.5 mm. As a result, in Comparative Example 1,
Since the ratio of A1 / A2 is lower than the lower limit value defined in the present invention, it has been found that the internal reflectivity of light and the handling property are significantly reduced.

Comparative Example 2 In Comparative Example 2, the ratio of the height (A1) of the glass bottle to the height (A2) of the internal protrusion A1 /
A2 is set to 0.95, and the height of the internal protrusion (A2)
A glass bottle was prepared and evaluated in the same manner as in Example 1 except that the thickness was 2.5 mm. As a result, in Comparative Example 1, A
Since the ratio of 1 / A2 is larger than the upper limit defined by the present invention, it has been found that the impact resistance and the appearance are significantly deteriorated.

[0059]

[Table 1]

Comparative Example 3 In Comparative Example 3, only one baffle (bottom used in Example 1) was used, and the same glass bottle as in Example 1, that is, the height (A1) and the height of the internal protrusions. An attempt was made to manufacture a glass bottle in which the ratio A1 / A2 with (A2) was 0.5. However, the internal protrusion was not formed and was destroyed. Therefore, the subsequent evaluation of the glass bottle was stopped.

[0061]

According to the glass container of the present invention, the following effects can be obtained. Not only the walls of the surrounding glass container, but also the internal projections of a certain height can effectively internally reflect the light, so that extremely attractive decorativeness and internal reflection of light can be exhibited. I can do it now. Since there is an internal protrusion with a certain volume inside the glass container, the position of the contents (water surface position) even if a small amount of contents are accommodated or the contents are reduced Since the height of the glass container is relatively high, the contents interfere with the internal protrusions, and the aesthetic value of the glass container can be increased. If the ratio of the height of the glass container defined by the present invention to the height of the internal protrusions is set, the impact resistance is less likely to be excessively lowered. With the ratio of the height of the glass container defined by the present invention to the height of the internal protrusions, it becomes possible to easily manufacture the glass container using conventional manufacturing equipment.

According to the method for producing a glass container of the present invention,
The following effects are now available. It became easy to control the wall thickness of the internal protrusions, and it became possible to effectively obtain a glass container in which the internal reflectance of light was stabilized and made uniform. It is possible to increase the production speed and manufacture, and it is possible to reduce the manufacturing cost of the glass container. MHART DA which is a size regulation collection of glass related products
Even if the value is equal to or lower than the height of the funnel defined by TA SHEEET, the glass container can be effectively obtained while effectively preventing the interference between the baffle and the funnel.

[0063]

[Brief description of drawings]

FIG. 1 is a diagram provided for explaining an example of a glass container of the present invention.

FIG. 2 is a diagram provided for explaining a baffle.

FIG. 3 is a diagram provided for explaining a funnel.

FIG. 4 is a diagram provided for explaining an operation relationship among a rough mold, a funnel, and a baffle.

FIG. 5 is a diagram provided for explaining a bottom.

FIG. 6 is a diagram provided for explaining an internal protrusion (cone).

FIG. 7 is a diagram provided for explaining an internal protrusion (quadrangular pyramid).

FIG. 8 is a diagram provided for explaining an internal protrusion (heart type).

FIG. 9 is a diagram provided for explaining the relationship between the ratio of A1 / A2 in the glass container and the internal reflectivity and impact resistance.

FIG. 10 is a diagram which is provided for explaining a manufacturing process of the glass container.

[0064]

[Explanation of symbols]

10 glass containers (glass bottles) 12 Internal protrusion (diamond cone) 14 screw mouth 20 baffles 30 funnels 43 Coarse 50, 104 bottom 66 Internal protrusion (cone) 76 Internal protrusion (square pyramid) 86 Internal protrusion (heart type)

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[Procedure amendment]

[Submission date] August 29, 2002 (2002.8.2)
9)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

Further, in constructing the glass container of the present invention, the internal protrusion is hollow, and a glass material different from the glass container, a colored resin material,
It is preferable that at least one decorative material selected from the group consisting of transparent resin material, paper material, metal material, and ceramic material is coated and filled. By thus coating or filling the hollow portion of the internal protrusion with the decorative material, it is possible to reduce the weight of the obtained glass container and further enhance the decorative property and the internal reflectivity.

Claims (9)

[Claims] 1. A glass container having an internal protrusion,
When the height of the glass container is A1 (mm) and the height of the internal projection is A2 (mm), the ratio of A2 / A1 is set to a value within the range of 0.1 to 0.8. Glass container characterized by. 2. When the volume of the glass container is D1 and the volume of the internal protrusion is D2, the ratio of D2 / D1 is set to a value within a range of 0.1 to 0.7. The glass container according to claim 1. 3. The glass container according to claim 1, wherein the internal protrusion is hollow. 4. The internal protrusion has any one of a triangular pyramid shape, a quadrangular pyramid shape, a diamond pyramid shape, a conical shape, and a heart shape. The described glass container. 5. The glass container according to claim 1, wherein the internal protrusion projects from the bottom surface of the glass container. 6. A method of manufacturing a glass container having internal protrusions, comprising a first step for forming a glass container having a rough shape from molten glass by using a rough mold, a funnel and a baffle,
A second step for forming a final glass container using a finishing mold and a bottom, and the height of the baffle used in the first step is B1.
And the height of the bottom used in the second step is B2, the value of B1 / B2 is set to a value within the range of 0.1 to 0.8. Method. 7. The method of manufacturing a glass container according to claim 6, wherein the tip of the bottom is cooled when the glass container is molded from the molten glass. 8. The method for manufacturing a glass container according to claim 6, wherein a bottom having a nickel material lined at its tip is used as said bottom. 9. The funnel has a height of 35-5.
The glass container manufacturing method according to claim 6, wherein a funnel of 6 mm is used.