JPH0322092Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to the improvement of plastic bottles.

(Prior art) In recent years, when filling beverages into plastic bottles, a filling system (hereinafter also referred to as an aseptic system) has been developed that sterilizes the inside of the bottle before filling, fills the bottle with the sterilized beverage, and eliminates the sterilization process after sealing. is becoming widely practiced.

The in-bottle sterilization in this aseptic system is usually performed as follows.

That is, the bottle is held upside down and a sterilizing liquid containing, for example, hydrogen peroxide is sprayed into the bottle, and then the bottle is held upright and washed with a cleaning liquid of the same type as the sterilizing liquid. Furthermore, after the bottle is turned upside down and the washing liquid is discharged, it is rinsed with sterile water, the washing liquid and sterile water are discharged, the bottle is filled with a beverage, and the cap is attached and sealed.

In this beverage filling method, since the content is a beverage, it is important that the cleaning liquid etc. be drained from the bottle as quickly as possible after washing and that the remaining amount of cleaning liquid etc. after draining be as small as possible. Highly desired. More specifically, in commonly used rotary washing machines, the bottle is inverted for 4 to 5 seconds to discharge the washing liquid, etc., and how can the amount of washing liquid remaining in the bottle be reduced during this time? Much consideration must be given to this.

On the other hand, in recent years, beverage bottles have been made thinner in order to reduce their cost and weight.

For this purpose, for example, as shown in Fig. 2, for the purpose of reinforcing the bottle, a bead 11 around the body of the bottle 10 and a flat part 12 in the vertical direction (hereinafter also referred to as a mirror part) are provided on the lower half of the bottle to make the bottle polygonal. (hereinafter referred to as "mirror bottle"), and other methods such as forming beads in the vertical direction are also being carried out.

(Problem to be solved by the invention) However, such deformation of the bottle body due to the bead and mirror portion prevents the washing liquid, etc., from flowing down quickly when the bottle is inverted, and also prevents the washing liquid inside the bottle from draining. This was causing the remaining amount to increase.

In other words, the flow of the cleaning liquid or the like flowing down along the inner wall of the bottle 10 is temporarily disturbed or stopped by the unevenness caused by the beads 11 or the mirror portion 12, and the flow rate is significantly slowed down. .

A particular object of the present invention is to provide a bottle in which the flow of washing liquid, etc. is prevented from being obstructed by the girth bead, the mirror part, or the vertical bead part having the same effect as these.

(Means for Solving the Problems) The present invention provides a bottle having a plurality of reinforcing beads arranged on the wall of the bottle main body, which are inclined in one direction with respect to the horizontal plane, and arranged in rows over substantially the entire height of the bottle. This bottle is characterized in that the inclined upper ends of each group of reinforcing beads are terminated substantially aligned in the vertical direction, and the bead terminal portions are made smooth in the direction of substantially the entire height of the bottle.

(Function) In the present invention, the inclined upper ends of the bead group are aligned in the vertical direction, and when the bottle is inverted, these point downwards to efficiently collect falling water droplets, and there is also a flat part in the vertical direction. Because of this, the cleaning liquid and the like flow down with great force along this flat portion, resulting in a remarkable improvement in the efficiency of discharging the cleaning liquid and the like.

(Embodiment) FIG. 1 shows an embodiment of the bottle according to this invention, where 1 is a bottle body, and 2, 2, . . . are a number of body reinforcing beads provided in the circumference direction.

These beads 2, 2 are cut at a part of the girth,
It is inclined upward toward its cut end portions 2a and 2b, respectively. These ends are aligned in the vertical direction, and the terminal end forms a smooth surface 3 in the height direction of the bottle body 1.

Note that 4 is a bead at the center of the body provided for reinforcement and design.

In the bottle 1 having such a structure, when the washing liquid, etc. is supplied into the bottle 1 while the bottle is held upside down during the above-mentioned sterilization, washing, and rinsing, the washing liquid, etc. flowing down is efficiently collected by the group of beads, and the washing liquid etc. are efficiently collected by the group of beads. The flow of liquid through the flat portion 3 is strongly urged, which facilitates drainage of the liquid from the inverted bottle mouth where residual liquid is likely to occur, and the drainage efficiency is significantly increased.

Actually, the bottle has the shape shown in Figures 1 and 2 (both
Regarding 1.5), when we filled the washing liquid completely and held it upside down to check the remaining amount, it was 0.4 ml and 0.83 ml, respectively.

These numerical values indicate that the drainage efficiency of the bottle is improved by the above configuration of the present invention.

In the present invention, the flat portions 3 are provided at two opposing locations, but the shape of the bead 2 can be changed to increase the number of flat portions 3 based on design consideration. Further, the present invention is not particularly limited to the number of beads 2 and their shape (for example, the shape may be changed in the upper and lower portions as shown in the example), and the width of the flat portion 3 may be increased or decreased within a range that does not affect the strength. Similar effects can be expected.

(Effect of the invention) As described above, in the present invention, the inclined upper ends of the group of beads provided on the bottle body are aligned in the vertical direction, and when the bottle is inverted, these face downward and the cleaning liquid etc. remain. It efficiently collects water droplets that fall without water, and since there is a flat part in the vertical direction, the cleaning liquid etc. flows down with force along this flat part, improving the drainage efficiency and significantly improving the above problem. There is a potential effect.

[Brief explanation of drawings]

FIG. 1 is a front view of a bottle according to an embodiment of the present invention, and FIG. 2 is a view of a conventional bottle. 1... Bottle, 2... Bead, 3... Flat part,
2a, 2b...Terminal part.

Claims (1)

[Scope of utility model registration request] In a bottle having a plurality of reinforcing bead groups inclined in one direction with respect to a horizontal plane arranged in a row over substantially the entire height of the bottle on the bottle main body wall, the inclined upper end of each of the inclined reinforcing bead groups is The bottle is characterized in that the bead ends are substantially aligned in the direction of the height of the bottle, and the end portion of the bead is made a smooth surface in substantially the entire height direction of the bottle.