JPH0939973A - Plastic bottle with handle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic bottle with handle wherein the handle itself is finished thin and light-weight, and the gripped feeling is favorable, and at the same time, the attaching strength of the handle to the bottle main body is excellent. SOLUTION: A recessed part 2 for the attaching of a handle is formed on the side surface of a bottle main body 1, and a handle 3, which is a separate body, with a gripping part 31, attaching arms 32, 33 at the top and the bottom of the gripping part 31, and engaging parts 321, 331 at the tips of the attaching arms, is attached to the recessed part 2 for the attaching of the handle in such a manner that the engaging parts 321, 331 are buried in the deep ends of the recessed part 2 for the attaching of the handle. Then, opening parts 322, 332 in which one part 41 of a blow molding die 4 can be fitted are formed on the side from the gripping part 31 side of the attaching arms 32, 33 to the vicinities of the engaging parts 321, 331.

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 on a side surface of a bottle body and a handle is formed in the handle mounting recess.

[0002]

2. Description of the Related Art As shown in the side view of FIG. 5, a conventional plastic bottle with a handle is provided with a handle mounting recess 2 on the side surface of a bottle body 1 for mounting the handle. Although a separate handle 3 is attached to the concave portion 2, if the handle 3 has a solid shape, and a vertical convex rib is formed over the entire width of the grip portion, if the strength is sufficient, the thickness and weight are reduced. There was a problem that it became large and the feeling of gripping became stiff, and if it was thin and lightly finished, there was a problem that the mounting strength decreased.

An object of the present invention is to provide a plastic bottle with a handle, which allows the handle itself to be thin and lightly finished, has a good grip feeling, and is excellent in the attachment strength of the handle 3 to the bottle body 1. To do.

[0004]

SUMMARY OF THE INVENTION The gist of the present invention is a separate body having a handle mounting recess formed on the side surface of a bottle body, and having a grip, upper and lower mounting arms, and a locking portion at the tip of the mounting arm. The handle is attached so that the locking portion is embedded in the recess of the handle mounting recess, and a part of the blow molding die is fitted laterally from the grip portion side of the mounting arm to the vicinity of the locking portion. A plastic bottle with a handle characterized by having an opening formed therein which can be fitted.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. 1 is a partially cutaway side view showing an example of the plastic bottle with a handle of the present invention, FIG. 2 is a perspective view showing an example of an apparatus for manufacturing the plastic bottle with a handle of FIG. 1, and FIGS. FIG. 5 is a perspective view showing another example, and FIG. 5 is a side view showing an example of a conventional plastic bottle with a handle.

According to the present invention, as shown in FIGS. 1 to 4, the handle mounting recess 2 is formed on the side surface of the bottle body 1, and the grip portion 31 is formed.
And a separate handle 3 having mounting arms 32 and 33 above and below and mounting portions 321 and 331 at the ends of the mounting arms so that the engaging portions 321 and 331 are embedded in the inner part of the handle mounting recess 2. Attached to the mounting arm 32,
33 is a plastic bottle with a handle, which is formed with openings 322, 332 into which a part 41 of the blow molding die 4 can be fitted, from the side of the grip portion 31 side to the vicinity of the locking portions 321, 331. is there.

In the present invention, a plastic bottle with a handle in which a handle mounting recess 2 is formed on the side surface of the bottle body 1 and a handle 3 is formed in the handle mounting recess 2 is shown in FIG. And the mounting arms 32 and 33 formed on the upper and lower ends of the grip portion.
Protrusion-shaped locking portions 321 and 331 are formed at the tip of the handle 3, and the protrusion-shaped locking portions 321 and 331 are wrapped in the bottle wall in the inner portion of the handle mounting recess 2 so that the handle 3 is It is a plastic bottle with a handle attached.

Here, as shown in FIG. 2 in a lateral direction from the grip portion 31 side of the mounting arms 32 and 33 to the vicinity of the locking portions 321 and 331.
Since the openings 322 and 332 into which the part 41 of the blow molding die 4 shown in FIG. 4 can be fitted are formed, the grip 31 can be thin and light, and the grip feeling is good, and the mounting arm 32, 33 is also light in weight due to the openings 322, 332, and can be finished with high strength, and a plastic bottle with a handle having excellent attachment strength of the handle 3 to the bottle body 1 can be obtained.

Further, as shown in FIG. 2 as an example of an apparatus for producing a plastic bottle with a handle, the handle 3 is set in advance in a blow molding die 4 showing a half mold, and a molding temperature (not shown) is set. When the heat-softened preform is fixed in the blow molding mold 4 by closing the mold, the locking parts 321 and 331 are wrapped around the bottle wall at the same time as the blow molding, and when the grip 3 is attached, the opening of the grip 3 is opened. By fitting the part 41 of the blow molding die 4 to the parts 322 and 332, the bottle wall is locked to the locking parts 321 and 33.
When the portion 1 of the blow molding die 4 receives the stress applied to the locking portions 321 and 331 when wrapping 1, the deformation of the mounting arms 32 and 33 can be prevented, and the wrapping can be surely performed. As a result, a plastic bottle with a handle having a high mounting strength can be obtained.

The opening portions 322, 332 allow a handle holder to be inserted when the handle 3 is conveyed, and are further opened laterally, so that the grip portion 31 has a laterally released shape such as an H-shaped cross section. Combined with the above, the structure of the injection mold can be simplified because it is only necessary to move the injection mold in the opened lateral direction during injection molding of the handle.

The locking portions 321, 331 are attached to the mounting arm 32,
By making the width narrower than 33 or chamfering the top and side portions on the bottle side, wrapping by the bottle wall can be performed smoothly.

In the example shown in FIGS. 1 and 2, the grip portion 3 of the handle 3 is
1 to the upper and lower mounting arms 32 and 33 have an H-shaped cross section in which an inner plate 34 and an outer plate 35 are connected by a central rib 36, so that the handle 3 as a whole is lightweight but has sufficient strength. In addition to that, the grip 31 has an appropriate elasticity, the feeling of gripping is soft, and the inner plate 34 and the outer plate 35 of the grip 31 of the handle 3 are plate-shaped,
The surface is smooth and the grip is smooth and good.

With the H-shaped cross section, the structure of the injection mold can be simplified because it is necessary to move the injection mold only in one lateral direction when the handle is injection-molded.

As shown in FIGS. 1 and 2, the inner plate 3 of the handle 3 is
By arranging and connecting a plurality of lateral ribs 361 orthogonal to the central rib 36 at intervals between the outer plate 4 and the outer plate 35, it is possible to reinforce without damaging the lightweight structure of the entire grip portion 31.

In the example shown in FIG. 3, since the vertical convex ribs 37 and a large number of horizontal ribs 371 orthogonal to the vertical convex ribs are formed in the center of the inside of the grip portion 31, they become slippery and also in terms of strength. It is good.

In the example shown in FIG. 4, since the grip portion 31 has a thin plate shape, a large space for inserting a finger can be secured.

In the example shown in FIGS. 1 to 4, the mounting arm 3 of the handle 3 is attached.
When the outer surfaces 323, 333 of 2, 33 are inclined surfaces that open outward at 25 to 35 degrees with respect to the horizontal, respectively, the wall of the bottle body 1 at the time of mounting can be easily molded along the outer surfaces 323, 333, and the outer surface 323 can be easily formed. If 333 is made a smooth surface, it will slide against the wall of the bottle body 1 to absorb the shock and become difficult to come off.

Further, although not shown, if ribs are formed on the outer surfaces 323 and 333 to make them uneven, the wall of the bottle body 1 is well extended along the unevenness, and there is an effect of making the wall thickness uniform. Furthermore, since the back surface 313 is formed in a straight line up to the upper and lower ends of the grip portion 31 and is continuous with the outer surfaces 323 and 333, when the bottle body 1 is mounted in the handle mounting recess 2.
The outer surface is smoothly continuous and has a good appearance.

Further, in the example of FIGS. 1 to 4, since the handle 3 has a vertically symmetrical shape, the handle 3 can be handled in any of the upper and lower directions when it is set in the blow molding die 4, so that the handling of the handle 3 is extremely efficient. The beauty of symmetry can be obtained in terms of appearance.

Although not shown, an upward engaging cutout is formed on the upper end of the grip portion 31 so that a support tool can be inserted into the engaging cutout when the handle 3 is transported or attached to the bottle body 1. May be. The shape of the locking notch is preferably a vertical groove which is opened laterally in a substantially U-shaped cross section, and the structure is simple because the molding die only needs to be moved in one lateral direction during injection molding. Of course, the locking notch may have a hole shape.

When the mounting arms 32 and 33 are enlarged so that the width becomes wider toward the ends, the bottle body 1
The mounting area is large, and rattling is less likely to occur.

[0022]

As described above, according to the present invention, a handle mounting recess is formed on the side surface of the bottle body, and a separate handle having a grip portion, mounting arms above and below the gripping portion, and a locking portion at the tip of the mounting arm is provided. , The locking portion is mounted so as to be embedded in the inner part of the handle mounting recess, and a part of the blow molding die can be fitted laterally from the grip portion side of the mounting arm to the vicinity of the locking portion. Since the plastic bottle with a handle is characterized by having an opening, the handle itself can be made thin and light, and the grip is smooth and soft, which is good.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an example of an apparatus for manufacturing the plastic bottle with a handle shown in FIG.

FIG. 3 is a perspective view showing another example of the handle.

FIG. 4 is a perspective view showing another example of the handle.

FIG. 5 is a side view showing an example of a conventional plastic bottle with a handle.

[Explanation of symbols]

 1 Bottle Main Body 2 Handle Mounting Depression 3 Handle 31 Grips 32, 33 Mounting Arms 321, 331 Locking Part 322, 332 Opening 4 Blow Molding Mold 41 Part of Blow Molding Mold

Claims (1)

[Claims] Claims: 1. A bottle mounting recess is formed on a side surface of a bottle body, and a separate handle having a grip portion, upper and lower mounting arms and a locking portion at a tip of the mounting arm, and the locking portion is the grip. It is mounted so as to be embedded in the back of the mounting recess, and an opening is formed laterally from the grip portion side of the mounting arm to the vicinity of the locking portion so that a part of the blow molding die can be fitted. Plastic bottle with handle.