JP3059975B2 - Synthetic resin bottle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin bottle, and more particularly to a cylindrical wall structure of a body of a large bottle formed by biaxial stretch blow molding.

[0002]

2. Description of the Related Art Synthetic resin bottles, especially large synthetic resin bottles, are easy to mold and suitable for mass production, have excellent resistance to contents, have high mechanical strength, and can be stored. It is widely used as a liquid storage container in a wide range of fields because of its light weight and the like in terms of volume.

[0003] As described above, the synthetic resin bottle has many excellent characteristics. However, since the surface is smooth and slippery and the thickness of the main body is thin, the main body is made of a synthetic resin bottle. When gripping and handling, there is a disadvantage that a portion to be touched by a fingertip is flexed and deformed, so that gripping and handling is likely to be unstable.

In order to solve this inconvenience, in this type of conventional bottle, a separately formed handle is assembled and fixed to the bottle body, or the left and right portions of the rear half of the bottle body are fixed. Means have been adopted in which a depression is formed by being depressed, and a grip part which can be easily gripped with one hand is formed by the bottom part of the depression and the trunk cylinder wall part of the rear half part.

[0005]

Among the above-mentioned prior arts, the means for forming a handle by providing a depression in the rear half of the bottle body is easy to mold and can be manufactured at low cost. Although it has the advantage of being able to do so, there is a problem that the appearance of the bottle is not always good because the depression forming the handle is strongly visible as the appearance of the bottle.

In addition, since the handle is formed in the rear half of the bottle body, the bottle is given directionality, so that the label can be attached to the bottle body or when the bottle is lifted. In such a case, it is necessary to set or check the attitude of the bottle body along the circumferential direction, and there is a problem that handling of the bottle becomes troublesome.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems in the prior art, and makes it possible to make the fingertip of one hand gripping the bottle body lightly sufficiently caught on the surface of the bottle body. It is an object of the present invention to make it easy to handle with one hand in a stable state.

[0008]

Means for solving the above-mentioned problems The present invention for solving the above-mentioned technical problem is to provide a center circumferential groove for reinforcement at a substantially center height position of a body having a bottomed cylindrical shape. In this
With a configuration that shares a part of the central circumferential groove, it has concave portions that are respectively depressed at locations facing front and rear, and both concave portions are high enough to allow one fingertip of one hand holding the body to enter It has a width and a width, and has a depth that allows a penetrated fingertip to be strongly hooked.

Preferably, the two recesses are arranged with the center axis of the body as the axis of symmetry, and the body has a rectangular cylinder shape with a bottom.
It is effective to provide a recess in the longitudinal side wall of the body.
You.

[0010]

[Function] The bottle is held with one hand in such a manner that the center of the body of the bottle is sandwiched from the front-back direction. When the torso is gripped by one hand, the fingertip of the one hand, specifically, the fingertip of the thumb and the index finger or the middle finger is gripped in a form in which the fingertips penetrate into both recesses.

The recess is located at the center of the body of the bottle.
Therefore, the tactile sensation of the fingertip of one hand holding the body of the bottle
Achieve fingertip penetration into recesses quickly and easily
Can be .

When the bottle is lifted in a gripping state in which the fingertip is inserted into the concave portion, slipping tends to occur between the fingertip and the surface of the bottle due to the load of the bottle. Because it is a depth that can be caught,
The fingertip that has penetrated into the concave portion is caught on the peripheral edge of the concave portion with sufficient strength to overcome the load of the bottle, whereby the lifting operation of the bottle with one hand can be achieved in a stable state.

[0013] Since both recesses are recessed and sized so that a single fingertip can enter , the ratio of the size of the recesses to the entire outer surface of the body of the bottle is extremely small. Therefore, the depression form of the concave portion does not stand out as the appearance of the bottle.

Further, since the two concave portions only form a simple and small depression on the surface of the body of the bottle, the direction of the bottle is rarely specified by the concave portions.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. The bottle 1 in the illustrated embodiment is a large biaxially stretch blow-molded bottle made of polyethylene terephthalate resin.
A short-cylindrical mouth portion 6 having a screw thread formed on the outer peripheral surface thereof is integrally erected at an upper end of a body portion 2 having a bottomed rectangular tube shape via a shoulder portion 5 having a truncated pyramid shape. It is configured.

At a substantially central height position of the body 2, a central circumferential groove 4 for reinforcement is provided to be depressed around the entire circumference of the body 2, and a longitudinal side wall portion of the body 2 facing the front and rear is provided. A concave portion 3 is depressed and provided at the center thereof in a configuration in which the upper half is located in the central peripheral groove 4.

The recess 3 has a height greater than the width of the central circumferential groove 4 (FIGS. 1, 2, 3 and 4).
Therefore, the groove width of the central peripheral groove 4 where the concave portion 3 is located is expanded downward and becomes large.

The recess 3 has a relatively large width, so that the body 2 can be gripped with one hand from either side.
The side edge is located at a place where the fingertip of one hand can enter the recess 3 (see FIGS. 1 and 5).

Further, the concave portion 3 has a depth (see FIG. 2) larger than the central peripheral groove 4 to ensure that a fingertip that has entered the concave portion 3 is caught on the side.

In the case of the illustrated embodiment, the concave portion 3 is provided integrally with the central circumferential groove 4 for reinforcement, so that the body portion 2 provided with the concave portion 3 has a flat wall structure to reduce the pressing force. Even in the case of the long-sided cylindrical wall portion which is easily bent and deformed, the cylindrical wall portion of the body portion 2 provided with the concave portion 3 is gripped with one hand by the reinforcing effect of the central circumferential groove 4 when gripping with one hand. The more the operation is deteriorated, the more the deformation is not caused, so that the one-handed handling of the bottle 1 with the fingertip penetrating into the concave portion 3 can be made more stable.

Further, since the concave portion 3 is provided in the longitudinal side wall portion of the bottomed rectangular cylindrical body 2, the short side cylindrical wall portion can be grasped when the body 2 is gripped with one hand. Thus, even if the bottle 1 is a large bottle, it is possible to stably and favorably hold the bottle 1 with one hand.

[0022]

Since the present invention has the above-described structure, the following effects can be obtained. Since the recess is simple and relatively small, it does not stand out as the appearance of the bottle, and there is no fear that the appearance of the bottle is deteriorated due to the shaping of the recess, and there is no uncomfortable feeling of the bottle. Appearance appearance can be obtained.

Since the concave portion has a simple depression structure and does not specify the gripping direction of the body portion on one of the two sides, there is no restriction on the direction of handling of the bottle, so that the bottle is not squeezed. to cause inconvenience in handling rather than name, also of the central circumferential groove
A stable gripping function can be exhibited by the reinforcing action.
This can improve the handling of bottles
I can .

Since the recess has a simple depressed structure and is relatively small, it is easy to form a recess molding portion on a molding die regardless of whether it is existing or newly provided, so that it is easy and simple. Can be implemented.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is an overall side view of the embodiment shown in FIG. 1;

3 is a partially enlarged longitudinal sectional view of a portion provided with a concave portion in the embodiment shown in FIG.

FIG. 4 is a partially enlarged longitudinal sectional view of a central peripheral groove portion in the embodiment shown in FIG. 1;

FIG. 5 is a plan sectional view taken along the line AA in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1; Bottle 2; Trunk 3; Recess 4; Central peripheral groove 5; Shoulder 6;

Continuation of the front page (56) References JP-A-62-52034 (JP, A) JP-A-3-93187 (JP, A) JP-A-58-65208 (JP, U) JP-A-2-117310 (JP) , U) Japanese Utility Model Application 4-10009 (JP, U) Japanese Utility Model Application Showa 61-107710 (JP, U) Japanese Utility Model Application Showa 61-117109 (JP, U) Japanese Utility Model Application Hei 2-45126 (JP, Y2)

Claims (3)

(57) [Claims] A central circumferential groove (4) for reinforcement is provided at a substantially central height position of a body (2) having a bottomed cylindrical shape.
(4) In a configuration that shares part of
It has a height and width that one fingertip can penetrate,
A synthetic resin bottle body in which concave portions (3) each having a depth such that the penetrated fingertip can be strongly hooked are respectively depressed. 2. The two recesses (3) opposed to each other in the front and rear direction are connected to the body (2).
The synthetic resin bottle according to claim 1, wherein a center axis of the bottle is arranged as a symmetric axis. 3. The synthetic resin bottle according to claim 1, wherein the body (2) has a rectangular cylindrical shape with a bottom, and a concave portion (3) is provided in a wall of a longitudinal side cylinder of the body (2). body.