JP2000025772A - Plastic bottle with handle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic bottle having a handle in which the handle itself can be finished in thin and light weight, its holding touch is smooth and soft and at the same tine even when a shock is applied to either a bottle main body or the handle, the handle is quite hardly removed from the bottle. SOLUTION: The side surface of a bottle main body is formed with a handle fixing indentation 2. A separate handle 3 having a holding part, its upper and lover fixing arms 32, 33 and engaging protrusions 321, 331 at the end sections of the fixing arms is fixed in such a way that the engaging section 331 may be embedded into the deep side of the handle fixing indentation 2. Lower surfaces of both sides of the fixing arms 32, 33 are formed with indentation fitting parts 37 indented upwardly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic bottle with a handle in which a handle mounting recess is formed in a side surface of a bottle body and a handle is mounted in the handle mounting recess.

[0002]

2. Description of the Related Art Hollow containers made of plastic are widely used as packaging containers for various liquids because of their excellent lightness and impact resistance. Among them, plastics represented by polyethylene terephthalate are stretch blow-molded. In addition, a plastic bottle with a handle attached to the bottle body with a separate handle is transparent, mechanical strength,
It is widely used as a container for filling beverages such as juices and soft drinks because it has excellent gas barrier properties and is easy to handle.

[0003] In these bottles, for example, as shown in FIG.
A separate handle 30 is attached to the recess 20 for attaching a handle, and a grip 310 and upper and lower mounting arms 320,
330 and locking projections 3210, 33 at the ends of the mounting arms
It has been proposed that a separate handle 30 having a handle 10 is attached so that the locking projection is embedded in the deep part of the recess for attaching the handle.

[0004]

However, in the above conventional example, the bottle wall 21 below the lower mounting arm 330 is not provided.
The handle 30 is easily detached when the bottle body 1 or the handle 30 is subjected to an impact due to the thickness of the handle 30 becoming thinner.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a plastic bottle with a handle which is hard to be detached from the bottle body of the handle.

The above object is achieved by the following means. That is, the present invention forms a handle mounting recess on the side surface of the bottle main body, and separates a handle having a grip portion, upper and lower mounting arms and a locking projection at the end of the mounting arm, and Is mounted so as to be embedded in the inner part of the recess for attaching the handle, a locking projection is formed on the upper surface of the end of the lower mounting arm, and an upwardly concave recess is formed on the lower surface on both sides of the lower mounting arm. The present invention proposes a plastic bottle with a handle formed with a fitting portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a partially cutaway front view showing an example of a plastic bottle with a handle of the present invention, and FIG. 2 is a side view showing an example of a handle used in the present invention.

In the present invention, as shown in FIG. 1, a recess 2 for attaching a handle is formed on the side surface of the bottle body 1, and a grip 31 and upper and lower mounting arms 32, 33 and the mounting arms 32, 33 are provided.
Separate handle 3 having locking projections 321 and 331 at the ends
The locking projections 321 and 331 are connected to the mounting recess 2.
It is attached so that it may be embedded in the back.

In the present invention, the handle 3 attached to the bottle main body 1 has a grip 31 as shown in FIGS.
And mounting arms 32, 33 formed at the upper and lower ends of the grip portion 31.
The locking projection 3 is provided on the upper surface of the end of the lower mounting arm 33.
The lower mounting arm 33 has a concave fitting portion 37 which is recessed upward on the lower surface on both sides of the lower mounting arm 33.

In order to manufacture the plastic bottle with a handle of the present invention, for example, the handle 3 is previously placed in a blow molding die having a shape along the outer surface of the bottle body 1 shown in FIG.
Is set so that the ends of the mounting arms 32 and 33 protrude from the inner surface of the divided mold, the parison 4 heated to the molding temperature is inserted into the mold, and the mold is closed. 4
The bottle body 1 is molded along with the mold by blowing high-pressure air from the opening (not shown, but longitudinal stretching using a stretching rod may be used at the same time), and the parison 4 locks the handle 3 A method in which the projections 321 and 331 and a part of the mounting arms 32 and 33 are wrapped and mounted is preferably employed.

As shown in FIG. 1, the entire lower surface of the lower mounting arm 33 is used as the concave fitting portion 37 formed on the lower surface on both sides of the lower mounting arm 33 of the handle 3 in the present invention.
The recessed fitting portion 37 is recessed by 0.3 to 1.5 mm above the horizontal line extending from 32, so that the recessed wall surface 21 of the bottle body 1 can be adapted.

As another example of the handle 3, as shown in FIG. 2, the lower surface of the lower mounting arm 33 of the handle 3 is formed to be thin, for example, 0.5 mm to 2.5 mm thick and flat. In addition, the lower surface of both side ends is pushed up by about 1.0 to 2.5 mm by the bottle wall pressing force at the time of blow molding, so that the concave fitting portion 37 can be easily formed.

According to the present invention, since the locking projection 331 is formed on the upper surface of the end of the lower mounting arm 33, the locking projection is unnecessary on the lower surface, and the wall surface 21 of the concave portion is smoothly extended and is excessively thin. Since it is difficult to bend and the concave wall portion 21 formed on the lower surface on both sides of the mounting arm 33 fits the concave wall surface 21 and wraps the locking protrusion 331 on the upper surface and the concave fit portion 37 so as to be sandwiched, The handle 3 is firmly attached to the bottle body 1 and is extremely difficult to come off.

Further, since the inner plate 34 and the outer plate 35 of the grip portion 31 of the handle 3 are plate-shaped, the surface can be smoothed and the gripping feeling can be smoothed.

The H-shaped cross section in which the inner plate 34 and the outer plate 35 are connected by a central rib 36 from the grip portion 31 of the handle 3 to the upper and lower mounting arms 32 and 33 thereof, However, while being lightweight, it has sufficient strength, and the grip portion 31 has appropriate elasticity, so that the grip feel is soft and good.

By adopting the H-shaped structure in cross section, the structure of the injection mold can be simplified since the mold only needs to be moved in one open side at the time of injection molding.

[0018]

According to the present invention, the handle itself can be made thin and light, and the grip can be made smooth and soft, and the locking projections on the upper end of the lower mounting arm of the handle and the lower surface of both sides can be obtained. Since the wall of the concave portion fits into the concave fitting portion, it is extremely unlikely to come off even when an impact is applied to the bottle body or the handle.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an example of a plastic bottle with a handle of the present invention.

FIG. 2 is a side view showing an example of a handle used in the present invention.

FIG. 3 is a side view of a conventional plastic bottle with a handle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottle main body 2 Handle mounting recess 3 Handle 21 recess wall surface 31 Handle part 32 Upper mounting arm 33 Lower mounting arm 34 Inner plate 35 Outer plate 36 Central rib 37 Depressed part 4 Parison 321 331 Locking part

Claims (1)

[Claims] 1. A separate handle having a handle mounting recess formed in a side surface of a bottle body and having a grip portion, upper and lower mounting arms thereof, and a locking projection at an end of the mounting arm. Is mounted so as to be embedded in the inner part of the recess for attaching the handle, a locking projection is formed on the upper surface of the end of the lower mounting arm, and an upwardly concave recess is formed on the lower surface on both sides of the lower mounting arm. A plastic bottle with a handle formed with a fitting portion.