JPH06122453A - Plastic bottle with grip - Google Patents

Abstract

PURPOSE:To obtain a plastic bottle having a stout grip, by providing a reinforcement in the fitting part of the grip of the bottle body. CONSTITUTION:A protrusion 3 is formed on the wall face of the recession 2 for fitting a grip and fitting parts 4 of the grip are formed at the upper and lower positions of the recession 2. The grip is provided with a reinforced plate 16 having a pierced hole 17 fitted to the protrusion 3 of the recessed wall face, a fitting protrusion 12 attached to the fitting parts 4 of the grip, fitting parts 15, and the grip 13 and moreover, the reinforced plate 16 is closely stuck all over the whole recessed wall face.

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, and more particularly to a plastic bottle in which a handle formed separately from the bottle body is attached to a recess formed in the upper wall surface of the bottle body.

[0002]

2. Description of the Related Art When a plastic bottle becomes large, it is not easy to carry it and to take out contents. Therefore, the handle formed integrally is used, for example, for detergent. However, in the case of molding with a polyester resin such as polyethylene terephthalate, it is difficult to form the handle integrally with the bottle main body, so that a concave portion is formed on the upper wall surface of the bottle main body, and this concave portion is different from the bottle main body. A handle formed separately is attached.

[0003]

However, since the wall surface of the recess formed for attaching the handle is recessed inward, the bulging distance from the parison during blow molding is short and the draw ratio is low. Although it is thickly formed, it has a small effect of stretching and orientation, and is easily deformed by external force, internal pressure, heat or the like. Therefore, there are drawbacks such that indefinite deformation is likely to occur due to the degree of orientation and shape difference from other parts of the bottle body, the entire bottle is tilted, and the recessed portion is distorted to create a gap in the handle mounting portion.

Therefore, an object of the present invention is to provide a plastic bottle with a handle, which is reinforced over a part or the entire circumference of the upper wall surface of the bottle body, and which is extremely robust.

[0005]

In order to achieve the above object, the present invention provides a plastic bottle having a handle mounting recess formed in the upper wall surface of the bottle body, and the handle being mounted in the recess. A reinforcing plate mounting portion having a groove is formed over a part or the whole circumference, and a reinforcing plate having a plurality of through holes is fitted into the groove, and the through hole is fitted into a wall portion defined by the groove. It is characterized by being mounted and attached.

[0006]

[Operation] With the above-mentioned configuration, the upper wall surface of the bottle body is reinforced by the attachment of the reinforcing plate, whereby the entire bottle can be strengthened.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the plastic bottle of the present invention. FIG. 1 is a partially cutaway front view of a main part, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 and FIG. 4 shows another embodiment, and FIG. 3 is a partially cutaway front view of the main part,
FIG. 4 is a perspective view of a handle, FIGS. 5 and 6 show still another embodiment, FIG. 5 is a partially cutaway front view of an essential part, and FIG. 6 is a perspective view of a handle and a reinforcing plate.

First, FIGS. 1 and 2 show an embodiment of a plastic bottle of the present invention. For example, a bottle body 1 molded of polyethylene terephthalate resin or the like.
A recess 2 for attaching a handle is formed on the upper wall surface of the
In addition, a grip 3 having a substantially arcuate outer surface formed separately from the bottle body 1 by injection molding using a synthetic resin such as polyethylene or polypropylene, and the outer surface being substantially flush with the wall surface of the bottle body 1. Installed.

The handle 3 is set in advance in, for example, a blow molding die of the bottle body 1, and the upper and lower fixing portions 3 are provided.
Almost all of a and 3b are attached to the recess 2 by being locked by the upper and lower locking portions 1a and 1b which are formed by being wrapped by the wall surface of the bottle body 1.

A reinforcing plate 4 is attached to the wall surface on the opposite side of the handle attaching recess 2. This reinforcing plate 4
Is made of, for example, the same synthetic resin as the bottle body 1 such as polyethylene terephthalate, or a metal plate, cardboard, or the like, and is curved correspondingly to the wall surface of the bottle body 1, and the whole is a rectangle having substantially the same height as the recess 2. It has a shape and is formed in a lattice shape having a plurality of rectangular through holes 5, and has locking portions 6 that are bent toward the inside, that is, the bottle body 1 side, at the four edges.

On the other hand, on the upper wall surface of the bottle body 1 to which the reinforcing plate 4 is attached, the reinforcing plate mounting portion 8 having the same lattice-shaped groove 7 is formed with the same depth as the thickness of the reinforcing plate 4 and A wall portion 1 is formed around which a locking groove 9 is formed, and a reinforcing plate 4 is fitted into the groove 7 to define a through hole 5 by the groove 7.
It is mounted on the bottle main body 1 so as to be flush with the bottle main body 1 by fitting the locking portion 6 into the locking groove 9.

The reinforcing plate 4 can be attached either directly to the bottle body 1 or by fitting it to the bottle body 1 with a hot melt type adhesive interposed, for example, in advance in the blow molding die of the bottle body 1. It is attached by means such as setting.

According to the present embodiment, since the reinforcing plate 4 attached to the wall surface of the bottle body 1 fixes and reinforces the wall surface, the difference in stretching ratio between the wall surface of the concave portion 2 and the wall surface of the bottle body 1 and By the indefinite deformation due to the unbalance due to the difference in shape, there is no inconvenience that the whole bottle is tilted or the concave portion 2 is distorted to form a gap in the attaching portion of the handle 3, and particularly, the through hole 5 has a bottle body 1 Since the wall portion 10 is fitted, the reinforcement against the distortion of the wall surface is stronger.

Further, the reinforcing plate 4 is attached by fitting the through hole 5 and the wall portion 10 of the bottle body 1 and fitting the locking portions 6 formed in the four directions in the locking groove 9 formed in the bottle body 1. Since it is carried out by inserting, the attachment is more reliable and strong, and the effect of suppressing the expansion and contraction of the wall surface of the bottle body 1 to prevent the irregular deformation of the bottle is remarkable, but the through hole 5 and the bottle When it can be attached only by fitting the wall portion 10 of the main body 1, the locking portion 6 and the locking groove 9 are provided.
Is not always necessary. The formation of the through hole 5 is
There is also an effect of saving the raw material of the reinforcing plate 4. Further, in this embodiment, since the reinforcing plate 4 is flush with the wall surface of the bottle body 1 when attached to the bottle body 1, it does not take up an extra space during transportation, storage, etc. None preferred. However, the wall portion 10 may protrude from the through hole 5 or may be recessed.

Since the height of the reinforcing plate 4 is substantially the same as the height of the concave portion 2, the concave portion 2 and the other wall surfaces of the bottle body 1 are balanced to prevent the irregular deformation of the bottle. However, the width is usually not less than the width of the handle, and the reinforcing effect can be obtained. Further, in this embodiment, the reinforcing plate 4 is attached to the opposite side of the recessed portion 2, but it may be attached over the entire circumference of the wall surface of the recessed portion 2 which is particularly deformable or the upper wall surface of the bottle body 1, or the entire circumference thereof. When mounted over the entire length, the tightening force can improve the deformation prevention effect, especially against internal pressure.
The mounting position of the reinforcing plate 4 may be appropriately selected depending on the shape and size of the bottle.

Furthermore, the handle 3 according to the above embodiment is
The side surface is substantially arcuate, and upper and lower fixing portions 3a and 3b are formed at both ends of the fixing portion 3 so as to expand toward the tip.
It is configured to be mounted in the recess 2 by locking substantially the entire a and 3b with the upper and lower locking portions 1a and 1b that are formed by being wrapped by the wall surface of the bottle body 1, and have a wide contact area and are reliably mounted. It is strong against impact because it is fixed, and the fixing part 3
Since the shapes of a and 3b are simple, not only is the manufacturing easy and economical, but also accurate molding is possible and there is no gap between the upper and lower engaging portions 1a and 1b.

Next, FIGS. 3 and 4 show another embodiment of the present invention. In this embodiment, the overall structure is substantially the same as that of the above embodiment, but the upper and lower fixing portions of the handle 3 are fixed. The outer surfaces of 3a and 3b are provided with a locking surface 11 having a large number of triangular wave protrusions extending in the width direction, and a locking projection 12 protruding in the width direction is provided at the tip of the fixed portion 3b. The locking surface 11 meshes with a locking surface 13 similar to the locking surface 11 of the handle 3 formed inside the locking portions 1a and 1b of the bottle body 1, and the locking projection 12 is It fits into the hole formed inside the locking portion 1b.

In this embodiment, the handle 3 has a locking surface 11,
By the engagement of 13 and the fitting of the locking projection 12 and the hole,
Securely and firmly attached.

The handle 3 of this embodiment is provided with both the engaging surface 11 and the engaging projection 12, but it goes without saying that the attachment will be strong even if either one is provided.

FIGS. 5 and 6 show still another embodiment of the present invention, in which the reinforcing plate 4 is provided with a recess 2 for mounting the handle.
It is attached to the wall of. The reinforcing plate 4 has a plurality of through-holes 5 and is formed in a lattice shape as in the above-described embodiment, and is integrally formed with the handle 3 by injection molding or the like. It is attached to the reinforcing plate mounting portion 8 of the recess 2. The reinforcing plate 4 and the handle 3 are, for example, set in advance in the blow molding die of the bottle body 1, and the locking projections 14 and 14 projecting from the upper and lower end surfaces of the bottle 3 fix the locking projections 14 and 14 to the bottle. It is attached by being locked to the upper and lower locking portions 1c and 1d which are formed by being wrapped by the wall surface of the main body 1, but may be fitted to the molded bottle main body 1 later. Although the reinforcing plate 4 and the handle 3 are integrally formed in this embodiment, they may be separately formed and attached.

According to this embodiment, the concave portion 2 is particularly easily deformed, and the concave portion 2 to which a force is directly applied when the handle 3 is held can be reinforced, and when the reinforcing plate 4 and the handle 3 are integrally formed. , Easy to manufacture and install.

In the above embodiment, the through hole 5 formed in the reinforcing plate 4 is rectangular, but the shape is not limited to this, and it is needless to say that the through hole 5 may have another shape such as a round shape, a triangular shape or a horizontally long linear shape.

[0023]

According to the present invention, in a plastic bottle in which a handle mounting recess is formed on the upper wall surface of the bottle body and the handle is mounted in the recess, a reinforcing plate is provided over a part or the entire circumference of the upper wall surface. Since it is configured to be attached and reinforced, the entire bottle may tilt due to indefinite deformation due to unbalance due to difference in draw ratio and shape difference caused by the concave portion for attaching the handle, or the concave portion may be distorted to create a gap in the attaching portion of the handle. It is possible to provide a robust plastic bottle without.

Further, since the reinforcing plate has a plurality of through holes, and the wall portion of the bottle body is fitted into the through holes, the reinforcing effect against the distortion of the wall surface is more remarkable. The reinforcing plate can be attached only by fitting the through hole and the wall. Moreover, the raw material of the reinforcing plate can be saved by the through hole.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an essential part showing an embodiment of a plastic bottle of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a partially cutaway front view of a main part showing another embodiment.

FIG. 4 is a perspective view of the same handle.

FIG. 5 is a partially cutaway front view of a main part showing still another embodiment.

FIG. 6 is a perspective view of a reinforcing plate of the same.

[Explanation of reference numerals] 1 ... Bottle body, 2 ... Recessed portion, 3 ... Handle, 4 ... Reinforcing plate, 5
... Through hole, 7 ... Groove, 8 ... Reinforcing plate mounting portion, 10 ... Wall portion

[Procedure amendment]

[Submission date] February 16, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Plastic bottle with handle

[Claims]

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, and more particularly to a plastic bottle having a handle formed separately from the bottle body in a recess formed in the upper wall surface of the bottle body. .

[0002]

2. Description of the Related Art When a plastic bottle becomes large, it is not easy to carry it and to take out contents. Therefore, the handle formed integrally is used, for example, for detergent. However, in the case of molding with a polyester resin such as polyethylene terephthalate, it is difficult to form the handle integrally with the bottle main body, so that a concave portion is formed on the upper wall surface of the bottle main body, and this concave portion is different from the bottle main body. A handle formed separately is attached.

[0003]

However, since the wall surface of the recess formed for attaching the handle is recessed inward, the bulging distance from the parison during blow molding is short and the draw ratio is low. Although it is thickly formed, it has a small effect of stretching and orientation, and is easily deformed by external force, internal pressure, heat or the like. Therefore, there are drawbacks such that indefinite deformation is likely to occur due to the degree of orientation and shape difference from other parts of the bottle body, the entire bottle is tilted, and the recessed portion is distorted to create a gap in the handle mounting portion.

Therefore, an object of the present invention is to provide an extremely robust plastic bottle with a handle by reinforcing the handle mounting recess of the bottle body.

[0005]

In order to achieve the above object, a plastic bottle with a handle of the present invention is a plastic bottle in which a handle mounting recess is formed on an upper wall surface of a bottle body, and the handle is mounted in the recess. A reinforcing plate having a projecting portion formed on a wall surface of the handle mounting recess and a handle locking portion formed on at least an upper portion of the recess, and the handle having a through hole fitted to the projecting portion of the recess wall surface; It is characterized in that it is provided with a locking projection that engages with the handle locking portion, a mounting portion and a gripping portion, and that the reinforcing plate and the mounting portion are in close contact over the entire wall surface of the recess.

[0006]

[Operation] With the configuration as described above, the upper portion of the bottle body is reinforced by the attachment of the reinforcing plate of the handle, which makes it possible to strengthen the entire bottle.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show one embodiment of the plastic bottle of the present invention. FIG. 1 is a partially cutaway front view of a main part, and FIG. 2 is a perspective view of a handle.

The plastic bottle shown in FIG. 1 has, for example, a recess 2 for mounting a handle formed on the upper wall surface of a bottle body 1 formed of polyethylene terephthalate resin or the like, and the recess 2 is provided separately from the bottle body 1. The handle 11 formed is attached.

A plurality of rectangular projections 3 are formed on the wall surface of the handle mounting recess 2 for locking the locking projections 12 provided on the handle 11 above and below the recess 2. The respective handle locking portions 4 are formed.

The handle 11 is formed, for example, by injection-molding a synthetic resin such as polyethylene terephthalate, polyethylene or polypropylene, which is the same as the bottle body 1. The handle 11 projects from the grip portion 13 and the upper end of the grip portion 13. A protrusion 14 serving as a finger pressing portion, a pair of mounting portions 15 protruding from the upper and lower sides of the gripping portion 13 toward the bottle body 1 side, and the locking protrusion 12 protruding vertically from the tip of the mounting portion 15. The reinforcing plate 16 is provided between the mounting portions 15.

The reinforcing plate 16 has the rectangular protruding portion 3
Are formed in a lattice shape having a plurality of through holes 17 corresponding to the above, and the reinforcing plate 16 is in close contact with the entire wall surface of the concave portion 2, and the through hole 17 and the protruding portion 3 are fitted to each other. ,
The recess 2 portion of the bottle body 1 is reinforced.

The handle 11 having such a reinforcing plate 16 can be attached to the bottle body 1 by, for example, setting the handle 11 molded in advance in the above shape in the blow molding die of the bottle body 1, and At the same time as the body 1 is blow-molded, at the same time as the handle locking portion 4 is formed so as to wrap around the locking projection 12 of the handle 11, the protruding portion 3 bulges and fits into the through hole 17 of the reinforcing plate 16. Although it can be performed by molding so as to fit, it may be fitted into the molded bottle body 1 later, and an adhesive or the like may be used if necessary.

According to this embodiment, the reinforcing plate 16 attached to the wall surface of the concave portion of the bottle body 1 fixes and reinforces the wall surface, so that it is easily deformed and a force is directly applied when the handle 11 is held. The recess 2 can be reinforced. As a result, the entire bottle is tilted or the concave portion 2 is distorted due to the difference in the draw ratio between the wall surface of the concave portion 2 and the wall surface of the bottle body 1 or the indefinite deformation due to the imbalance due to the difference in shape.
There will be no inconvenience such as creating a gap in the mounting portion of No. 1. In particular, the reinforcing plate 16 and the mounting portion 15 are in close contact with each other over the entire wall surface of the recess, and the projection 3 of the wall surface of the recess is fitted into the through hole 17 so that the contact portion is securely mounted with a wide contact area. In addition, it suppresses the expansion and contraction of the wall surface to prevent indefinite deformation of the bottle, and further strengthens the reinforcement against the distortion of the wall surface. Further, since the reinforcing plate 16 is formed integrally with the handle 11, the manufacturing is easy and the bottle 11 can be easily attached.

Further, in this embodiment, since the protrusion 14 is provided at the upper end of the grip portion of the handle 11, the protrusion 1 is provided.
4 and the locking projection 12 on the upper side sandwich the upper wall portion of the concave portion of the bottle body 1, so that the attachment strength of the handle 11 can be further improved, and the projection portion 1
Since 4 serves as a finger pressing portion when holding the handle 11, the handleability is also improved.

In the above embodiment, the through hole 17 formed in the reinforcing plate 16 and the projection 3 of the recess wall surface are formed in a rectangular shape. However, the shape is not limited to this, and may be, for example, a round shape, a triangular shape, a horizontally long linear shape, or the like.
Of course, other shapes may be used.

[0016]

As described above, according to the present invention, since the reinforcing plate integral with the handle is attached to the recess for attaching the handle, the unbalance due to the difference in the draw ratio and the difference in shape in the recess for attaching the handle is caused. It is possible to provide a robust plastic bottle in which the entire bottle does not tilt due to indefinite deformation or the concave portion is distorted and a gap is not formed in the attachment portion of the handle.

Further, since the reinforcing plate has a through hole, and the projecting portion of the wall surface of the concave portion of the bottle body is fitted into the through hole, the reinforcing effect against the distortion of the wall surface is more remarkable. In addition, the handle is provided with a protrusion that serves as a finger pressing part,
By sandwiching a part of the bottle body between this and the locking projection, the attachment strength of the handle can be further improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an essential part showing an embodiment of a plastic bottle of the present invention.

FIG. 2 is also a perspective view of the handle.

[Explanation of Codes] 1 ... Bottle main body, 2 ... Recessed portion, 3 ... Projection portion, 4 ... Handle locking portion, 11 ... Handle, 12 ... Locking protrusion, 13 ... Gripping portion, 14
... projection part, 15 ... mounting part, 16 ... reinforcing plate, 17 ... through hole

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

Claims (1)

[Claims] 1. A plastic bottle in which a handle mounting recess is formed on an upper wall surface of a bottle body, and a handle is mounted in the recess, and a reinforcing plate mounting portion having a groove over a part or the entire circumference of the upper wall surface. A plastic plate with a handle, wherein a reinforcing plate having a plurality of through holes formed therein is fitted in the groove and the through hole is fitted and attached to a wall portion defined by the groove.