JPH0656138A - Plastic bottle - Google Patents

Abstract

PURPOSE:To provide a plastic bottle for containing various kinds of liquid wherein its body is not likely to deform by a change in inner pressure or external pressure such as a grip, slight deformation if it occurs is inconspicuous and the bottle is easy to stably hold. CONSTITUTION:A recess 2 for finger holding having a gradient face bent and recessed from an outer body periphery toward an inner bottom 4 of the recess with appropriate width is formed on a body of a plastic bottle 1, while the bottle body parts on both sides of the recess are expanded and a lower slope 3 makes a steep slope. Its extension line makes a relatively small angle Q1 with respect to the bottle center line, while an upper slope 6 is easy and its center line makes a relatively large angle Q2 with respect to the center line. A lower part of the lower slope 5 is a part of a reinforcing rib 3 as it is, while the reinforcing rib 3 surrounds the bottle body as a recessed rib in a continuous recessed belt with a slight width.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body part structure of a plastic bottle for storing various liquids.

[0002]

2. Description of the Related Art Conventionally, in a plastic bottle containing various liquids such as blow-molded beverage, soy sauce, or salad oil, a recess is formed in a part of a body or a reduced diameter portion in order to make the bottle easy to grip. Are provided.

[0003]

By the way, since the bottle is gripped while supporting the weight of the bottle and the stored liquid, the recessed portion or the reduced diameter portion and the bottle body portion are formed on the finger and the palm almost entirely. It is preferable for the grip to be stable over the grip, so that the body of the bottle is preferably formed so as not to be deformed not only by changes in internal pressure but also by external pressure such as gripping force. However, none of the conventional bottles characterized by such a structure is provided.

From the above viewpoint, the inventor of the present invention has made it difficult for the body of the bottle to be deformed by a change in the internal pressure or an external pressure such as gripping force, and is not conspicuous even if a slight deformation occurs, and thus makes it easy to hold the bottle stably. It aims to develop a plastic bottle.

[0005]

SUMMARY OF THE INVENTION According to the present invention for solving the above-mentioned problems, a body portion is recessed from both sides to form a pair of finger-holding recesses, and a circumferential reinforcing rib is formed from a lower portion of the finger-holding recesses. And a plastic bottle.

The finger hanging concave portion is preferably formed by a concave inclined surface. The reinforcing ribs may be concave ribs that are circumferentially provided with a curved surface that is continuous from the inclined surface of the finger hanging concave portion, or convex ribs that are continuously provided and circumferentially provided on the inclined surface of the finger hanging concave portion. Can be

Further, among the inclined surfaces forming the finger hanging concave portion, the downward inclined surface is steep with respect to the horizontal plane,
The extension line forms a relatively small angle with respect to the center line of the bottle, the upper sloping surface forms a gentle slope with respect to the horizontal plane, and the extension line forms a relatively large angle with the center line. Preferably.

[0008]

[Function] When a plastic bottle is gripped by pressing the finger-holding concave portion with a finger while contacting substantially the entire palm with the body portion, the finger-holding concave portion and the reinforcing ribs formed in the circumferential direction from the lower portion of the palm prevent deformation of the bottle. Gives a stable and easy grip.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a plastic bottle 1 according to the first embodiment.
Is a front view, FIG. 2 is a vertical cross-sectional view of the main part, and FIG. 3 is a cross-sectional view of the same.

The plastic bottle 1 is formed by blow molding polyethylene terephthalate (PET) or other plastic, and a pair of finger-holding recesses 2 and 2 are formed by recessing the body from both sides at a position above the middle of the body. Formed,
Reinforcing ribs 3 in the circumferential direction are formed from the lower portions of the finger-holding recesses 2, 2.

The finger-holding concave portion 2 has an appropriate width, for example, toward the bottom surface 4 of the concave portion which can contact the belly portion of the fingertip.
A curved sloped surface is formed from the outer peripheral surface of the body so that the fingers can easily follow it, and the bottle body on both sides of the inner bottom surfaces 4 and 4 has a bulged cross-sectional arc shape or deformation. The bulging portion 7 has an arc shape, and the lower sloping surface 5 of the sloping surface is steeply inclined with respect to the horizontal plane, and its extension line has a relatively small angle Q1 (eg, about 50) with respect to the center line of the bottle.
Angle smaller than -60 °), the upper inclined surface 6 forms a gentler inclination with respect to the horizontal plane than the lower inclined surface 5, and its extension line forms a relatively large angle Q with respect to the center line.
2 (for example, an angle larger than about 50 to 60 °), the lower part of the lower inclined surface 5 becomes a part of the reinforcing rib 3 as it is, and the reinforcing rib 3 has a width slightly continuous from the lower part of the lower inclined surface 5. It is in the form of a concave band, and is provided so as to form a concave rib shape with respect to the bottle body portion immediately above and the bottle body portion immediately below.

In the case of the conventionally known cylindrical bottle, the upper portion is reinforced by the mouth and the neck portion and the lower portion is reinforced by the bottom plate portion, so that it is difficult to be deformed, but the intermediate portion is provided with the uneven ribs. However, it is likely to be deformed by the change in the internal pressure of the bottle at the time of sealing, or the external pressure due to the gripping force at the time of gripping. On the other hand, according to the configuration of the present invention, the inner bottom surface 4 portion is formed in a three-dimensional pattern with respect to the surrounding bottle body portion, and the bottle body portions on both sides of the inner body surface are bulged to form an arc shape or a cross section. The bulging portion 7 has a deformed arc shape, and the inner bottom surface 4 portion, which is less expanded by blow molding, is formed in a reinforced state that is slightly thicker than the surrounding body portion, and is further inclined downwardly. Since the reinforcing ribs 3 are continuously provided around the inner periphery of the inner wall 5, it is difficult to be deformed even when the bottle internal pressure changes when the bottle is closed or external pressure such as gripping force is generated. It is absorbed by the regular deformation of the portion 7, and indefinite deformation does not extend below the reinforcing ribs 3, so that it becomes inconspicuous.

Further, the steeply sloping downwardly sloping surface 5 makes it easy for the entire finger holding the bottle to fit along the surface of the bottle, and the swelling portion 7 of the bulging bottle body on the side of the inner bottom surface 4 can be held by hand. Since almost the entire surface of the bottle can be contacted, the gripping stability of the bottle can be made extremely preferable. The upper sloped surface 6 having a gentle slope allows the finger to come into contact with the sloped surface 6 to catch when the bottle is gripped and lifted or tilted. It is possible to prevent slipping and slipping out of the bottle, and it is also possible to make gripping stability extremely favorable.

In any case, while the finger-holding concave portion 2 is held by the fingers, the base portion of the finger and the palm portion are continuously arranged along the concave strip-shaped reinforcing rib 3 so that the reinforcing rib 3 portion serves as a catching portion. As a result, the bulging portion 7 of the bottle body can be gripped so as to wrap the whole of the hand tightly, and the gripping stability can be made extremely preferable.

Moreover, even if the vicinity of the finger-holding recess 2 is slightly deformed due to the external pressure when the bottle body is gripped as described above, the lower reinforcing rib 3 transmits the deformation to the other bottle body. Since it is made difficult, the deformation of the bottle body can be sufficiently suppressed, and the gripping stability can be made more preferable.

FIG. 4 is a front view of a plastic bottle 1a according to the second embodiment, and FIG. 2 is a vertical cross-sectional view of the main part thereof. The plastic bottle 1a corresponds to the recessed reinforcing rib 3. The portion is formed as a convex reinforcing rib 3a, and the lower side thereof is formed as a concave surface portion. The configurations of the inner bottom surface 4a, the lower inclined surface 5a, the upper inclined surface 6a, the bulging portion 7a, and the like which form the finger hanging concave portion 2a are the same as those in the first embodiment,
The reinforcing ribs 3a are continuously formed from the lower part of the lower inclined surface 5a.

Also according to this structure, while the finger-holding concave portion 2a is sandwiched by fingers, the base portion of the finger and the palm portion are continuously arranged along the convex reinforcing rib 3a portion, and the reinforcing rib 3a portion serves as a catching portion. In this way, the bulging portion 7a of the bottle body can be gripped so as to wrap it with the entire hand.

In each of the above embodiments, the inclined surface forming the finger hanging concave portion may be formed as a flat surface. In addition, it is optional to form the reinforcing ribs 8 in the bottle body portions on both sides of the finger hanging recesses 2 to 2a as illustrated in FIG. 4 or to form the reinforcing ribs in the other bottle body portions.

[0019]

As described above, according to the present invention, the deformation of the bottle is less likely to occur due to the pair of finger-holding recesses and the reinforcing rib formed continuously on the lower portion of the inclined surface, and even a slight deformation is absorbed by the body portion and is conspicuous. It is possible to provide a plastic bottle that is difficult to be deformed by the reinforcing ribs and is not easily transmitted to other body parts. According to this bottle, not only the deformation does not easily occur due to the change in the bottle internal pressure at the time of sealing, but also the pair of You can hold the bulging part of the bottle body along the reinforcing ribs with your fingers in the finger-holding recesses, and you can hold it with your finger and palm in a stable manner, and you can surely hold it even when the bottle is tilted, such as when pouring. Even in this state, the finger-holding concave portion and the reinforcing rib prevent the bottle from being easily deformed, and the shape of the bottle can be sufficiently maintained. Therefore, stability and certainty of gripping the bottle are more preferable.

[Brief description of drawings]

FIG. 1 is a front view of a plastic bottle according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a front view of a plastic bottle according to another embodiment of the present invention.

5 is a cross-sectional view taken along the line VV of FIG.

[Explanation of symbols]

 1, 1a Bottle 2, 2a Finger hooking recess 3, 3a Reinforcing rib 4, 4a Inner bottom surface 5, 5a Lower inclined surface 6, 6a Upper inclined surface

Claims (1)

[Claims] 1. A plastic bottle having a structure in which a body portion is recessed from both sides to form a pair of finger hooking recesses, and circumferential reinforcing ribs are formed from the lower portions of the finger hooking recesses.