JPH0329746A - Plastic bottle with handle - Google Patents

Abstract

PURPOSE:To prevent an irregular projection by a method wherein by dilating side edge parts of a recessed vertical surface, a passage, which internally communicates the recessed vertical surface and a recessed lower surface, is formed. CONSTITUTION:In a plastic bottle, for which a recessed part 2 to attach a handle is formed on the upper side surface of a bottle main body 1, and the upper and lower ends of a handle 3 are fixed in the recessed part, a passage 7, which internally communicates a recessed part vertical surface 4 and a recessed part lower surface 6 is formed by delating side edges of the recessed part vertical surface 4. This passage 7 in the bottle becomes a passage for air which flows in from the outside when a contained liquid is poured out, and the exchange between the contained liquid and air is smoothly performed. Therefore, the irregular projection can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a plastic bottle with a separate handle attached to the bottle body. (Prior art) As plastic bottles become larger, they become inconvenient to handle, so bottles with integrated handles are used for detergents, etc. However, for bottles made of polyester resin such as polyethylene terephthalate, it is difficult to integrally mold the handle with the bottle body, so a recess 2 for attaching the handle is formed above the bottle body 1, as shown in the front view in FIG. and insert the separate handle 3 into the recess 2.
A bottle with a fixed lower end 31,32 is proposed.

(Problem to be solved by the invention!!i) However, in the above-mentioned conventional device, when discharging the content liquid, the exchange of the external air and the content liquid is obstructed by the recess 2, and cannot be done smoothly, resulting in irregular protrusion. There was a problem that this occurred.

(Means for Solving the Problem) The present invention solves the above problems by partially bulging the vertical surface of the recess and forming a passage that internally communicates the vertical surface of the recess with the lower surface of the recess. This will be explained below based on the attached drawings.

FIG. 1 is a perspective view showing an example of a plastic bottle with a handle of the present invention, and FIG. 2 is a partial sectional view taken along the line ■-■ in FIG.
Fig. 3 is a cross-sectional view of Fig. 2, Fig. 4 is a partial longitudinal sectional view showing another example of the present invention, and Fig. 5 is a front view showing an example of a conventional plastic bottle with a handle. be.

The present invention provides a plastic bottle in which a recess 2 for attaching a handle is formed in the upper side surface of a bottle body 1 as shown in FIGS. 1 to 4, and the upper and lower ends of a handle 3 are fixed in the recess. This is a plastic bottle with a handle, characterized in that the side edges are bulged to form a passage 7 that internally communicates the vertical surface 4 of the recess and the lower surface 6 of the recess.

The passage 7 inside the bottle serves as a passage for air flowing in from the outside when discharging the liquid inside the bottle, allowing for smooth replacement with the liquid inside the bottle, thereby preventing irregular protrusion. The bulge 5 forming the passage 7 is provided at the side edge of the vertical surface 4 of the recess so as not to obstruct the insertion of fingers into the recess 2. Furthermore, the passage 7 may be formed only below the recess 2 as shown in FIGS.
If the shape is formed from the concave lower surface 6, smoother discharge can be achieved. In order to form this passage 7,
As shown in the figure, the bulging portion 5 is arranged so as to press down on the lower end or the upper and lower ends of the handle 3 from both sides, thereby making the handle even more securely attached. Although not shown, this passage 7 can also be formed only on one side of the handle attachment part. It is best to make the outer surface of the handle 3 almost flush with the outer surface of the bottle body 1 so as not to take up space for storage and transportation.Therefore, when the handle 3 is attached, the recess 2 is formed so that the handle 3 and the recess 2 are flush with each other. It is preferable that the size is large enough to fit your fingers into the space formed between them. In a normal bottle, the depth of the recess 2 is preferably about 174 to 173 times the diameter of the upper part of the bottle body l. The handle 3 may be made separately from the bottle body; for example, it may be made of injection molded plastic such as polyethylene or polypropylene. In order to manufacture such a bottle, for example, the handle 3 may be set in advance in a blow-molding mold for the bottle, and the bottle may be blow-molded so that the upper and lower ends of the handle are wrapped around the bottle wall surface. (Effects of the Invention) As described above, the plastic bottle with a handle of the present invention is characterized in that the side edges of the vertical surface of the recess are bulged to form a passage that internally communicates the vertical surface of the recess and the lower surface of the recess. Therefore, (1) when discharging the liquid content, the passage connecting the vertical surface of the recess and the lower surface of the recess enables smooth exchange of the liquid content and air, and prevents irregular protrusion. (2) Since the side edges of the vertical surface of the recess are bulged, it is possible to deepen the center of the vertical surface of the recess corresponding to the handle attachment part to ensure sufficient space so that it does not get in the way of inserting fingers. can. (3) By bulging the vertical surfaces of the recessed portions, the stretching ratio can be increased and the strength and heat resistance of this portion can be improved.

It has the following effects.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a plastic bottle with a handle of the present invention, and FIG. 2 is a partial cross-sectional view of FIG.
Fig. 3 is a cross-sectional view of Fig. 2, Fig. 4 is a partial longitudinal sectional view showing another example of the present invention, and Fig. 5 is a front view showing an example of a conventional plastic bottle with a handle. be. 1... Bottle body, 2... Concavity, 3... Handle, 4
. . . Vertical surface of the recess, 6. Lower surface of the recess, 7. Passage.

Claims (1)

[Claims] There is a recess (2) on the upper side of the bottle body (1) for attaching the handle.
In a plastic bottle in which the upper and lower ends of the handle (3) are fixed in the recess, the side edges of the vertical surface (4) of the recess are bulged out to separate the vertical surface (4) and the lower surface (6) of the recess. ) A plastic bottle with a handle, characterized by forming a passage (7) that communicates with the inside.