JPH0631094B2 - Plastic bottle with handle - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a plastic bottle having a handle attached to the bottle which is separate from the bottle.

(Prior Art) Since a large plastic bottle is inconvenient to handle, a bottle integrally formed with a handle is used for a detergent or the like.

However, in a polyester resin bottle such as polyethylene terephthalate, it is difficult to integrally mold the handle with the bottle body, so that the recess 2 is formed above the bottle 1 as shown in the front view in FIG. A bottle in which a separate handle 3 is fitted in the recess 2 has been proposed.

(Problems to be Solved by the Invention) However, it has been found that the conventional one has the following drawbacks because the bottle and the handle are fitted at the end of the recess 2 on the outer surface side of the bottle.

That is, the bottle recess 2 has a larger draw ratio during blow molding as it goes to the outer surface of the bottle. Therefore, if a recess for forming a handle is not formed at the end of the recess 2 on the outer surface of the bottle, the material is not easily deformed and has a sufficient shape. However, the wall thickness was extremely thin, and the mounting strength was insufficient.

(Means for Solving the Problem) According to the present invention, the handle is formed into a substantially U shape, and the handle is engaged with the bottle at the innermost portion of the upper and lower surfaces of the recessed portion 2.
This is a solution to the above problems while maintaining the ease of gripping.

Hereinafter, the present invention will be described in detail.

FIG. 1 is a perspective view of a handle according to the present invention, and FIG. 2 is a partially cutaway sectional view showing a state in which the handle is attached to a bottle.

The handle 3 includes a grip portion 31 and fitting portions 32 and 33 that project laterally from both ends of the grip portion 31, and has a generally U-shape. Protrusions 42 and 43 that stand up and down are provided at the tips of the fitting portions 32 and 33. In this example, two protrusions are provided on each of the left and right sides so that the bottles can easily bite when the bottle is fitted and the rattling of the handle is prevented.

It is most convenient to manufacture the handle 3 from a plastic material by injection molding.

FIG. 2 shows a state in which the handle 3 is attached to the bottle (main body). A concave portion 2 for attaching a handle is formed on the upper side surface of the bottle 1, and the protrusions 42, 43 of the handle 3 are attached to the wall surface of the bottle at the deepest portion (the side closer to the central axis of the bottle) of the upper and lower surfaces of the concave portion 2. It is buried by being bitten. The innermost part is thick,
Further, since the molding is easy, the protrusions 42 and 43 can be surely embedded.

The outer surface of the grip portion 31 of the handle 3 is substantially flush with the outer surface of the bottle 1 so as to save a storage or transportation space. Therefore, the recess 2 has a size such that when the handle 3 is attached, the fingers can sufficiently enter the space formed between the handle 3 and the recess 2.

In an ordinary bottle, the depth of the recess 2 is preferably about 1/4 to 1/3 of the diameter of the upper portion of the bottle 1.

In order to manufacture such a bottle, a handle may be set in advance in a mold for blow molding of the bottle, the bottle may be blow-molded, and the protrusions 42, 43 may be wrapped by the wall surface of the bottle.

FIG. 3 is a perspective view showing another example of the grip, in which recessed portions (recesses or through holes) 52, 53 are formed at the tips of the fitting portions 32, 33.

In this case, the innermost portion of the bottle concave portion is the concave portion 52, 5
3, and the bottle 1 and the handle 2 are engaged with each other.

FIG. 4 is a perspective view showing a further preferred embodiment,
The vertical surface 21 of the recess 2 is formed with irregularities extending in the vertical direction. Since the longitudinal surface 21 has a low draw ratio, it is thick but has low bending, buckling strength, heat resistance, etc. Thus, the strength of the material itself is increased, and the strength is also improved by the rib effect based on the shape, which is preferable.

The present invention is particularly suitable as a large bottle containing one or more polyester resins.

(Effects of the Invention) In the bottle of the present invention, since the draw ratio is low, the handle is attached at the deepest part of the upper and lower surfaces of the concave portion which is thick and easy to be molded into a predetermined shape, so the handle has sufficient strength and does not rattle. Fixed. Moreover, since the upper and lower surfaces of the recess are supported by the fitting portion of the handle, the deformation of the recess is small. In particular, if the concave portion is formed to have a concave-convex cross section, the bottle can be made more durable without buckling of the surface.

[Brief description of drawings]

FIG. 1 is a perspective view of a handle of the bottle of the present invention, FIG. 2 is a partially cutaway sectional view of the bottle of the present invention, FIG. 3 is a perspective view of another example of the handle of the bottle of the present invention, and FIG. FIG. 5 is a perspective view showing another embodiment, and FIG. 5 is a front view of a conventional bottle with a handle. 1 ... Bottle, 2 ... Recess for mounting handle, 21 ... Vertical surface of recess 2, 3 ... Handle, 31 ... Grip, 32, 33 ...
… Fitting parts, 42, 43… protrusions.

Claims (1)

[Claims] 1. A handle 3 having a handle mounting recess 2 formed on the upper side surface of a bottle 1 and comprising a grip portion 31 and fitting portions 32 and 33 protruding laterally from both ends of the grip portion 31. A bottle attached to the recess 2 and protruding outwardly at the tips of the fitting portions 32 and 33 of the handle 3.
2, 43 or recessed portions 52, 53 are provided, and the protrusion 4 thereof is provided.
2, 43 or the recessed portions 52, 53 are engaged with the innermost portions of the upper and lower surfaces of the recessed portion 2 so that the outer surface of the grip portion 31 of the handle 3 is substantially flush with the outer surface of the bottle 1. A plastic bottle with a handle that is equipped with.