JP2000281032A - Thin-walled blow bottle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily hold a bottle by hand to facilitate tightening and opening/ closing of a cap at the time of use by knurling an outer circumferential surface of a neck ring projected downward of a bottle mouth part, and providing a lower port cylindrical part of the specified height continuous to a shoulder portion from a lower part of the neck ring. SOLUTION: A mouth part 1 comprises an upper mouth cylindrical part 5, a neck ring 6 located in an intermediate portion of the mouth part and a lower mouth cylindrical part 7 continuous to a shoulder portion from its lower part. A screw 8 is threaded in an outer circumferential surface of the upper mouth cylindrical part 5, and a knurling 9 is cut in forward and rear portions or a while circumference of an outer circumferential surface of the neck ring 6. The lower mouth cylindrical part 7 is of the height allowing fingers to insert in the lower mouth cylindrical part 7 to hold the bottle, and continuous to a shoulder portion 2. The mouth part 1 reinforced thereby, and at the same time, the bottle can be held so as not to be irregularly moved when the bottle is conveyed, and the bottle is not turned when tightening a cap. Fingers are inserted in the lower mouth cylindrical part 7 to hold the bottle and to open/ close the cap.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin-walled blow bottle, and more particularly to a thin-walled blow bottle in which the shape of a mouth is improved and reinforced.

[0002]

In recent years, the recycling of plastic molding materials has been promoted along with their savings, and thinning of the bottles has been demanded from the viewpoint of crushing and collecting waste bottles. Thin-walled bottles that can be crushed and discarded are well known.

However, in the case of a conventional thin bottle, for example, in the case of PP, the resin weight per unit capacity is 0.065.
g / ml, but if the resin weight is 0.05 g / ml or less, ribs can be placed at required locations on the body and bottom to reinforce, but the shoulders will be thin and Unless improved or reinforced, various problems may occur in the process of transporting the blow-molded bottle to each work station, or the cap may not be securely tightened after filling the contents.

[0004] Also, if you want to use it as a replacement bottle to replace the cap with pump after using the content liquid,
In the conventional mouth shape, the lower part cannot be grasped by hand together with the neck ring, and since the shoulder is thin, it has been difficult to grasp the bottle and open and close the cap. .

The present invention has been made to solve the above-mentioned problems. In a blow bottle having a thin wall so as to be easily crushed, it is intended to prevent a trouble from occurring in a bottle transporting step after molding. An object of the present invention is to provide a thin bottle in which the shape of a bottle mouth portion is improved and reinforced by easily fastening a cap after filling and opening and closing the cap during use.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a thin blow bottle having a mouth and a shoulder,
A thin blow bottle comprising a body and a bottom,
The bottle mouth portion is composed of an upper mouth portion with a screw screwed on the outer periphery, a neck ring protruding below the lower mouth portion, and a lower mouth portion following the shoulder portion from below the neck ring. A knurl is engraved on the outer peripheral surface thereof, and the lower mouthpiece has a constant height. The above-mentioned fixed height is a height that allows a finger to be inserted into the lower mouthpiece and the bottle to be gripped.

Another embodiment of a thin-walled blow bottle is a thin-walled blow bottle comprising a mouth portion, a shoulder portion, a body portion, and a bottom portion, wherein the mouth portion of the bottle is screwed on its outer periphery. Part, a grip ring protruding below the part,
The grip ring is composed of a lower mouth portion following the shoulder, and the grip ring has a knurl engraved on an outer peripheral surface thereof. A configuration characterized in that the diameter is larger than that of the upper mouth portion is adopted.

Further, as an embodiment of the grip ring, a configuration is adopted in which the outer periphery is square.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, A is a thin blow bottle formed by direct blow, comprising a mouth portion 1, a shoulder portion 2, a body portion 3, and a bottom portion 4. Resin is used and blow molded as a single layer or a laminate.

The mouth portion 1 comprises an upper mouth portion 5, a neck ring 6 located at an intermediate portion of the mouth portion, and a lower mouth portion 7 extending from below to a shoulder portion. A screw 8 is screwed on the outer peripheral surface of the upper mouthpiece 5, and a knurl 9 is engraved on the outer peripheral surface of the neck ring 6 over the entire front and rear portions or the entire circumference. The lower mouthpiece portion 7 is high enough to allow a finger to be inserted into the lower mouthpiece portion 7 and grip the bottle, and continues to the shoulder portion 2.

The mouth portion 1 is thicker than the shoulder portion 2 and the torso portion 3. However, since the mouth portion 1 is still thinner than the conventional one, the neck ring 6 is connected to the middle of the mouth portion. By forming a knurl 9 on the outer peripheral surface of the
The mouth 1 is strengthened, the bottle is held so that the bottle does not move when the bottle is transported, and the bottle does not rotate when the cap is fastened. Since the lower mouthpiece portion 7 having a certain height is provided below the neck ring 6, fingers can be inserted into the lower mouthpiece portion 7 between the neck ring 6 and the shoulder wall 2 to hold the bottle. . Therefore, the cap can be easily opened and closed at the time of use.

As shown in FIG. 3, the cross-sectional shape of the shoulder portion 2 and the trunk portion 3 is a flat cross section 10 having an elliptical front and rear surface and flat surfaces on both sides. Has a step 1
1 is formed. On the front and rear wall surfaces 12 of the body 3, concave grooves 13 extending in the lateral direction are arranged at equal intervals in the vertical direction.
Due to the concave groove 13, the front and rear wall surfaces 12 are wavy wall surfaces waving in the vertical direction. Elliptical end portions 14 of the front and rear wall surfaces 12 extend in the vertical direction at the left and right ends of the concave groove 13.

The left and right side wall surfaces 15 intersect with the elliptical end portions 14 of the front and rear wall surfaces 12 at a fixed angle, and a plurality of recesses 16 are arranged on the surface of the side wall surface 15 at equal intervals.
A bulging peripheral wall 17 having a step between itself and the upper part is disposed at the lower end of the body 3 and continues to the bottom 4.

A front and rear wall surface 12 has a groove 13 extending laterally.
The intersection line between the front and rear wall surfaces 12 and the side wall surface 15 functions as a vertical rib as a reinforcing rib, and a plurality of recesses 16 are arranged at equal intervals on the side wall surface 15 surface. The buckling strength of the torso can be obtained. Further, since the surface of the side wall surface 15 is flat, the front and rear bottles come into surface contact with each other in the transport process, and the bottles are arranged with the major axis direction of the bottles as the moving direction.

As shown in FIGS. 1, 2, and 4, the bottom 4 is composed of a bottom peripheral wall 18 and a bottom wall 19.
It is formed of front and rear walls 20 that are slightly inclined and left and right side walls 21 that are inclined at a predetermined angle. Bottom peripheral wall 18 and trunk 3
An upper horizontal rib 22 is provided over the entire circumference at the connection portion with the bulging peripheral wall 17, and a plurality of vertical ribs 23 are provided at regular intervals on the front and rear walls 20. Bottom peripheral wall 18
A lower horizontal rib 24 is provided at the lower end of the
Below the lower horizontal rib 24, a bottom wall 19 having a curved surface 25 with a central portion depressed upward is continuous.

The bottom peripheral wall 18 is reinforced by upper and lower horizontal ribs 22, 24 and a vertical rib 23, and the left and right side walls 21 are inclined so that the connecting portion between the lower end of the bottom peripheral wall 18 and the bottom wall 19 becomes circular and becomes thick. As a result, the bottom 4 is strengthened against the impact of dropping and buckling of the bottle.

Next, the molding method will be described. The bottle of the present invention is molded by conventionally known direct blow molding. In one embodiment of the thin-walled bottle, PP resin is used as the resin, and the weight of the resin per unit volume is set to 0.1.
027 g / ml, but the resin weight is 0.05
０．０１0.015 g / ml.

As a thin-walled bottle which maintains shape retention and can be easily crushed, the thickness of the body wall may be about 0.6 mm, but ribs are provided on the body and the bottom peripheral wall for further thinning. By arranging and having a predetermined shape, the thickness of the body and the bottom peripheral wall is reduced to 0.3 mm or less, and the resin weight per unit capacity is reduced.

In the above embodiment, the outer shape of the neck ring is circular and the lower part is the lower barrel portion of the cylinder. However, the outer circumference of the neck ring may be polygonal or other shapes other than circular.

Next, a second embodiment in which the shape of the mouth is changed will be described. In the first embodiment, the neck ring protrudes from the mouthpiece, but in the second embodiment, a gripping ring is used instead of the neck ring, and the shape of the mouth is changed. .

As shown in FIG. 5, the bottle Aa comprises a mouth 1a, a shoulder 2a, a body 3a, and a bottom 4a as in the first embodiment. Is the same as that of the above-described embodiment, and the description is omitted, and only the mouth of the bottle will be described below.

The mouth portion 1a comprises an upper mouthpiece portion 30, a grip ring 31 located at an intermediate portion of the mouth portion 1a, and a lower mouthpiece portion 32 continuing from the grip ring 31 to a shoulder. A screw 33 and a retaining ring 34 are provided on the outer peripheral surface of the upper mouthpiece portion 30, and the outer peripheral surface of the grip ring 31 projects from the upper mouthpiece portion 30 and the lower mouthpiece portion 32 of the mouth 1a,
A knurl 35 is engraved over a part or the entire circumference of the outer peripheral surface. The lower barrel portion 32 has a certain height that can be gripped by fingers, and its outer periphery is slightly smaller in diameter than the grip ring 31 but is larger in diameter than the upper barrel portion 30 and follows the shoulder 2a. ing.

In the second embodiment, the grip ring 3
1 is formed in the middle of the mouth 1a, and the knurls 34 are provided on the outer peripheral surface thereof, so that the bottle is prevented from being perturbed when the bottle is transported, as in the first embodiment.
The bottle does not rotate when the cap is tightened. Further, since the lower mouthpiece 32 having a slightly smaller diameter and a certain height than the holding ring 31 is provided below the holding ring 31, holding the holding ring 31 and the lower mouthpiece 32 by hand,
The bottle can be gripped, and the cap can be easily opened and closed when used.

In the above embodiment, the outer periphery of the grip ring 31 is circular, but the outer periphery of the grip ring 31a may be a regular octagon or a regular hexagon as shown in FIG. At that time, reducing the outer diameter of the lower barrel portion 32a,
The outer periphery of the lower mouth portion 32a may be formed into a rectangular shape similar to the outer periphery of the holding ring 31a.

In each of the above embodiments, the blow bottle is a flat bottle whose front and rear wall surfaces are elliptical, but the cross section of the body wall may be circular, square, or other polygonal.

[0026]

Since the present invention is configured as described above, it has the following effects. A neck ring or grip ring is formed in the middle of the mouth, and a knurl is provided on the outer peripheral surface, so that the bottle does not move when transporting the bottle and does not rotate when the cap is fastened. I was able to.

Further, since the lower mouth tube portion having a certain height is provided below the neck ring or the holding ring, it is easy to hold the bottle by hand, and the cap can be easily opened and closed at the time of use. . Therefore, the bottle of the present invention can be used as a refill bottle or a replacement bottle for replacing a cap with a pump.

[Brief description of the drawings]

FIG. 1 is a front view of a blow bottle according to a first embodiment of the present invention.

FIG. 2 is a side view of the bottle.

FIG. 3 is a top view of the bottle.

FIG. 4 is a bottom view of the bottle.

FIG. 5 is a front view of a bottle according to a second embodiment.

FIGS. 6A and 6B are explanatory views of a bottle mouth for explaining an embodiment of the grip ring, wherein FIG. 6A is a front view of the mouth, and FIG.
FIG. 4 is an external sectional view taken along line -A.

[Explanation of symbols]

 A, Aa Blow bottle 1,1a Mouth 2,2a Shoulder 3,3a Body 4,4a Bottom 5,30 Upper mouth 6,6a Neck ring 7,32 Lower mouth 8,33 Screw 9,34 Knurl 12 Front and rear wall surface 13 Concave groove 15 Side wall surface 16 Concave portion 18 Bottom peripheral wall 19 Bottom wall 31, 31a Gripping ring

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masafumi Yoneyama 310, Mindodai, Matsudo-shi, Chiba Prefecture Inside the Matsudo Plant, Yoshino Industry Co., Ltd. (72) Inventor Hiroaki Tokuda 3-2-6 Oshima, Koto-ku, Tokyo Yoshino Corporation F-term in the factory (reference) 3E033 AA01 BA13 BA15 BA16 BB08 CA20 DA03 DA08 DB01 DC03 DD05 DE20 EA04 EA05 FA03

Claims (3)

[Claims] 1. A thin-walled blow bottle comprising a mouth, a shoulder, a body, and a bottom, wherein the bottle mouth is provided with an upper mouth cylinder having a screw threaded on the outer periphery and protruding below the upper mouth. The neck ring is composed of a lower mouthpiece portion continuing from the neck ring to the shoulder portion from below the neck ring, and the knurl is engraved on the outer peripheral surface of the neck ring, and the lower mouthpiece portion has a certain height. A thin-walled blow bottle characterized in that: 2. A thin-walled blow bottle comprising a mouth, a shoulder, a body, and a bottom, wherein the bottle mouth is provided with an upper mouth cylinder having a thread screwed on an outer periphery thereof and protruding therebelow. A grip ring, and a lower mouth portion following the shoulder portion from the grip ring, the grip ring has a knurl engraved on the outer peripheral surface thereof, the lower mouth portion has a certain height, A thin-walled blow bottle characterized in that the outer periphery is enlarged in diameter from the upper mouth portion. 3. The thin blow bottle according to claim 2, wherein the outer periphery of the grip ring is square.