JPH0439152Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a biaxial stretch blow-molded bottle with a handle, particularly to a bottle structure that is effective for large-sized bottles.

[Conventional technology]

Synthetic resin bottles are widely used as containers for storing liquids, but the most effective method for molding these synthetic resin bottles is to produce a primary molded product made by injection molding of a specified synthetic resin material on two shafts. This is a method of forming a bottle by stretch blow molding. Especially when polyethylene terephthalate resin is used as the molding material, it is thin and lightweight, yet has excellent strength and resistance to contents, and has a highly transparent appearance. It had many advantages such as good appearance and mass production at low cost.

By the way, this type of synthetic resin biaxially stretched blow-molded bottle naturally has a smooth and soft surface, so it has the disadvantage that it is difficult to grip when handling, especially for large bottles. It was almost impossible to handle it with one hand.

To solve this inconvenience in handling, there are measures such as integrating a handle into a part of the body of the bottle, or setting the width of a part of the body of the bottle to a value that makes it easy to grip with one hand. However, in the case of this type of bottle that requires a large amount of stretching deformation, especially large bottles, it is important to integrate the handle into the body of the biaxial stretch blow-molded bottle. The amount of stretching becomes abnormally large, and due to this excessive amount of stretching and the uneven amount of stretching with other parts, abnormal thinning occurs in the molded handle part and the vicinity of this handle part, causing the bottle to deteriorate. Inconveniences arise in that the function as a container is significantly reduced, and the mechanical strength of the molded handle itself cannot be made sufficient.

In addition, forming part of the body of the bottle to a thickness and width that makes it easy to hold with one hand is fine when the size of the bottle is relatively small, but when the size of the bottle is large, However, since the bottle itself is soft, the shape of the body, which serves as the handle, is not stable, and therefore the bottle cannot be handled stably.

Therefore, as a means for attaching a handle to this type of bottle, a method has been considered in which a handle is molded into a certain shape separately from the bottle and is adhesively fixed to a predetermined location on the bottle.

In this case, since the handle body is molded separately from the bottle body, its own strength can be made sufficient, and the strength of the bottle body itself does not decrease due to the handle. There are advantages.

[Problem that the invention attempts to solve]

However, when adhesively fixing the handle body, which has been previously formed into a certain shape, to a predetermined location on the bottle body, the mutual positional relationship between the bottle body and the handle body must be maintained immovably until the adhesive hardens. However, the bottle body is extremely lightweight, its surface is smooth and slippery, and the body to which the handle is glued is soft, so the operation of gluing and fixing the handle to the bottle body is extremely troublesome. It had become large and time-consuming.

In other words, it is necessary to maintain the position of the handle body relative to the bottle body until the adhesive hardens, but since the bottle body is extremely lightweight and has a smooth surface, it is possible to glue the handle body to the bottle body. In this situation, it becomes difficult to store the bottle immovably, and a special holding facility is required to ensure the enshrinement of the bottle.
Since the adhesive, which is a liquid, needs to be held in a position that prevents it from flowing down by gravity, the position in which it is held immobile has to be specified, making it extremely difficult to handle the combination of the bottle body and handle body at the initial stage of adhesion. I've come across a troublesome problem.

In addition, in order to firmly adhesively fix the handle body to the bottle body, it is necessary to press the handle body against the bottle body with a desired pressing force. Since the body is soft, the pressure of the handle may forcefully deform the body, resulting in poor adhesion of the handle to the bottle body, or the shape of the entire bottle body becoming distorted. I had the inconvenience of leaving it on for a while.

The problems with the above-mentioned conventional methods are that no force is applied to the handle body to the bottle body other than the adhesive force of the adhesive, and no means have been taken to prevent the adhesive from flowing naturally due to its own weight in a fluid state. This is due to the fact that they are not properly prepared.

The present invention makes it possible to maintain the assembly of the handle body with respect to the bottle body in a constant posture by the engagement force of the handle body with respect to the bottle body. The technical problem is to prevent the adhesive located between the handle body and the handle body from flowing naturally.

[Means for solving problems]

The means of the present invention is a bottle body constructed by adhesively fixing a handle body 6 made of thermoplastic synthetic resin to a body part 2 of a bottle body 1 which is biaxially stretch blow-molded. By recessing a part of the recess 3, and by recessing and deforming the engagement groove 5 at the peripheral end of the recess 3, the handle body 6 can be bonded to the surface of the recess 3 with both ends of the vertical rod-shaped handle 7. A ring plate-shaped adhesive plate 8 that is fixed with an adhesive has a structure in which it is connected in an erected manner at the center, and an engaging strip 10 that engages with the engaging groove 5 is provided on the peripheral edge of the adhesive surface of the adhesive plate 8. There is something to do.

[Effect]

Bottle body 1 to which adhesive plate 8 of handle body 6 is adhesively fixed
A concave portion 3 formed by depression deformation of the body portion 2 of the
By doing so, the bottle body 1 is attached to the outer surface of the body 2.
Even if the handle body 6, which is a separate object, is adhesively fixed, the adhesive plate 8 of the handle body 6 causes only the handle part 7 to protrude from the outer surface of the body 2, and the handle body 6 is adhesively fixed to the bottle body 1. There is no need for the adhesive plate 8 to protrude from the outer surface of the body 2.

The engagement groove 5 formed on the bottle body 1 and the engagement strip 10 of the handle body 6 engage with each other. The bottle body 1 is maintained until the adhesive hardens.
The assembled posture of the handle body 6 can be maintained immovably, and the assembly force of this engagement assembly applies a constant pressing force to the adhesive surface of the adhesive plate 8 of the handle body 6 against the surface of the recess 3. It can be pressed and held.

When adhesively fixing the handle body 6 to the bottle body 1,
Since the handle body 6 has an engagement strip 10 engaged with the engagement groove 5, the engagement groove 5 and the engagement strip 10 are connected to the surface portion of the recess 3 to which adhesive is applied and the adhesive plate 8.
Since it is provided at the peripheral edge of the adhesive surface of the recess 3
The liquid adhesive applied between the surface and the adhesive surface of the adhesive plate 8 is blocked by the engaging grooves 5 and the engaging strips 10 that are in the engaged state, and therefore the recess 3 and the adhesive plate There is no leakage from between 8 and 8.

The vertical bar-shaped handle 7 has both ends integrally connected to the adhesive plate 8 and is installed on the adhesive plate 8, so that the handle 7 is fixed to the bottle body 1 by adhesively fixing the adhesive plate 8 to the bottle body 1. The handle portion 7 is fixed to the bottle body 1 at both ends thereof, and is therefore attached to the bottle body 1 in an extremely stable posture. In addition, the adhesive plate 8 has a ring plate shape, and as a matter of course, the adhesive surface with the recess 3 is also ring-shaped, so that it can be adhesively fixed to the bottle body 1 over a relatively wide range. Therefore, the adhesive fixing strength of the handle body 6 to the bottle body 1 can be made stable and high.

〔Example〕

In the case of the illustrated embodiment, a mouthpiece is provided upright at the upper end of a substantially square cylinder-shaped body 2 via a shoulder, and a recess 3 is recessed on a specific side of the body 2.
The adhesive surface portion 4 with the handle body 6 corresponds to the shape of the adhesive plate 8 and is a portion of the recess 3 excluding the central portion. A plurality of grooves are installed almost uniformly on the adhesive surface portion 4, and by lightly engaging the protrusions provided on the adhesive plate 8 of the handle body 6 with these grooves, the handle body 6 can be attached to the bottle body 1. This is to achieve adhesive fixation more firmly and stably, and to prevent the liquid adhesive from flowing or moving inadvertently.

The handle body 6 is injection molded from a synthetic resin material with excellent mechanical strength such as polypropylene resin.
The adhesive plate 8 is shaped like a square ring plate with a notch 9 that is open at the center of the handle body 6, and both end portions of the adhesive plate 8 are curved in the opposite direction from the protruding side of the handle part 7, and the engagement groove and The bottle body 1 is engaged with the engagement strip 10.
When the handle body 6 is attached to the bottle body 1, the elasticity of the adhesive plate 8 is used to maintain this engagement, and the handle body 6 is attached to the bottle body 1 until the adhesive hardens.
The assembled state is maintained in a stable manner.

Further, the handle body 6 as a whole is colored and opaque, and the adhesive, for example, hot melt, which adheres and fixes the handle body 6 to the bottle body 1 is set to the same color as the handle body 6. That is, since the bottle body 1 has extremely high transparency, the adhesive will be visible through the bottle body 1 regardless of whether the adhesive is colored or not.
By making the adhesive colored and opaque, the adhesive becomes difficult to see, thereby preventing deterioration of the appearance of the bottle due to the adhesive. By making it the same,
The adhesive is no longer visible on its own.

[Effect of idea]

As is clear from the above description, the bottle body of the present invention can reliably and stably adhesively fix the handle body, which is a separate object, to the bottle body. It is possible to reliably and easily prevent the occurrence of such inconveniences, and it also exhibits many excellent effects, such as greatly simplifying handling until the handle body is adhesively fixed to the bottle body. .

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a side view, and FIG. 3 is a longitudinal sectional view of the main part. 4 is an enlarged cross-sectional view taken along the line - in FIG. 3, and FIG. 5 is an enlarged cross-sectional view taken along the line - line in FIG. 3. FIG. 6 is a cross-sectional view of the main part of the embodiment shown in FIG. FIG. 7 is a front view of the adhesive surface of the handle body. Explanation of symbols, 1... Bottle body, 2... Body, 3...
... recess, 4 ... adhesive surface, 5 ... engagement groove, 6 ... handle body, 7 ... handle part, 8 ... adhesive plate, 9 ... notch, 10 ... engagement strip.

Claims (1)

[Scope of utility model registration request] Body part 2 of bottle main body 1 biaxially stretch blow molded
The bottle body has a handle body 6 made of thermoplastic synthetic resin adhesively fixed thereto, and a recess 3 is recessed in a part of the outer surface of the body 2 and is engaged with the peripheral edge of the recess 3. Both ends of the bottle body 1 provided with the groove 5 and the vertical bar-shaped handle part 7 are connected to a ring plate-shaped adhesive plate 8 that is adhesively fixed to the recess 3, and a peripheral edge of the adhesive surface of the adhesive plate 8 is attached. A bottle body comprising a handle body 6 having a protruding engagement strip 10 that engages the engagement groove 5.