JP3834428B2 - Handle for plastic bottle and plastic bottle with the handle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plastic bottle handle and a plastic bottle with a handle in which a handle mounting recess is formed on a side surface of the bottle body, and the handle is mounted in the handle mounting recess.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a plastic bottle with a handle has a recess for attaching a handle on the side surface of the bottle body 1, and a separate handle consisting of a grip portion and upper and lower mounting arms is provided with a locking projection provided at the tip of the mounting arm. Widely implemented are those embedded so as to be embedded in the wall surface in the handle mounting recess.
[0003]
As a method of manufacturing these plastic bottles with a handle, the handle is set in advance in a blow mold, and the wall of the bottle body is wrapped around the handle mounting and locking protrusion at the same time as the blow molding and embedded. So-called insert molding is performed.
[0004]
For example, a bottle with a polyester resin handle attached to a polyester resin bottle main body represented by polyethylene terephthalate can be reused by reprocessing without separation of the handle and main body after use. Have been bathed.
[0005]
[Problems to be solved by the invention]
However, when trying to insert-mold a handle made of polyester resin, especially on a bottle body made of polyester resin, slipping between the same quality resins is bad, so the locking provided at the tip of the lower mounting arm for easy molding There is a case where the protrusion is formed upward to reduce the slip resistance, which causes a problem that the mounting strength is lowered.
[0006]
It is an object of the present invention to provide a plastic bottle with a handle that is excellent in strength to be attached to a bottle body of a handle that solves the above-mentioned problems.
[0007]
[Means for Solving the Problems]
The above object is achieved by the following means.
[0008]
That is, the present invention has a mounting arm of the grip portion and the upper and lower, it is provided a locking projection which is upwardly protruding above and below the mounting arm tip, grip the locking projection tip of the mounting arm tip of the lower The present invention proposes a plastic bottle handle characterized in that a protrusion having a protrusion formed in the part direction is provided.
[0009]
Further, the present invention has a grip portion and upper and lower mounting arms, and is provided with locking projections protruding upward at the upper and lower mounting arm tips, on both sides of the distal end of the locking projection at the lower mounting arm tip. The present invention proposes a handle for a plastic bottle, characterized in that a protrusion having a protrusion is provided.
[0010]
Further, according to the present invention, a recess for attaching the handle is formed on the side surface of the bottle body, and the bottle wall surface of the recess for attaching the handle is wound around the locking projection of the handle and is wound around the lower side of the projection. The present invention proposes a plastic bottle with a handle characterized by having a handle attached.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
[0012]
1 is a perspective view showing an example of a handle for a plastic bottle, FIG. 2 is a partial view showing another example of the handle, FIG. 3 is a front view of a plastic bottle with a handle, and FIG. 4 is a partial cross-sectional view in the vicinity of an arm 33. FIG.
[0013]
As shown in FIG. 1, the handle for a plastic bottle of the present invention comprises a grip portion 31 and upper and lower mounting arms 32 and 33, and protrudes from the distal ends of locking projections 34 provided at the distal ends of the upper and lower mounting arms 32 and 33. A portion 35 is provided.
[0014]
In the example of FIG. 1, the protrusion 35 is provided by forming a protrusion from the tip of the locking protrusion 34 toward the grip 31. Further, as shown in FIG. 2, protrusions 35 may be provided by forming protrusions on both sides of the distal end of the locking protrusion 34.
Further, although not shown, the protruding portion may be protruded by gradually inclining or expanding the locking protrusion as it goes to the distal end side.
[0015]
When the handle 3 provided with the protrusion 35 on the locking protrusion 34 is attached so as to be embedded in the wall surface 21 of the handle mounting recess 2 formed on the side surface of the bottle body 1 as shown in FIG. 3, it is shown in FIG. Thus, the attachment strength of the handle 3 can be significantly improved by the anchor effect on the wall surface 21 due to the presence of the protruding portion 35.
[0016]
In particular, when the handle 3 is attached to the bottle body 1 by insert molding, as shown in FIG. 4, the locking projection 34 is attached upward, and the lower attachment arm 33 has a slip resistance corresponding to the absence of the projection. Since the engagement portion 34 and the wall surface 21 at the time of molding are very smoothly joined together, the wall surface 21 wound around the engagement projection 34 further wraps so as to bite below the projection 35 and is downward. The anchor effect acts against the stress of this, making it difficult to pull out, and the mounting strength can be greatly improved.
[0017]
【The invention's effect】
According to the present invention, the attachment strength of the handle can be greatly improved by forming the protrusion at the tip of the locking protrusion.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a handle according to the present invention.
FIG. 2 is a partial view showing another example of the handle of the present invention.
FIG. 3 is a partially cutaway front view showing an example of a plastic bottle with a handle according to the present invention.
FIG. 4 is a partial cross-sectional view near the lower mounting arm.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bottle main body 2 Handle attachment recessed part 3 Handle 31 Grip part 32 Upper attachment arm 33 Lower attachment arm 34 Locking protrusion 35 Protrusion part

Claims (3)

It has a gripping part and upper and lower mounting arms , and is provided with a locking projection protruding upward at the top of the upper and lower mounting arms , and a ridge in the direction of the gripping part at the tip of the locking projection of the lower mounting arm . A handle for a plastic bottle, characterized in that a formed protrusion is provided. Protrusions that have a grip and upper and lower mounting arms, and that are provided with locking protrusions that protrude upward at the top and bottom of the mounting arms , with protrusions formed on both sides of the locking protrusion at the bottom of the mounting arm A handle for a plastic bottle characterized by providing a portion. A handle mounting recess is formed on a side surface of the bottle body, and the bottle wall surface of the handle mounting recess is wound around the locking projection of the handle according to claim 1 or 2 and bites below the projection. A plastic bottle with a handle, characterized in that it is wrapped around and attached with a handle.

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