JPH0665232U - Plastic bottle with handle - Google Patents

Abstract

(57) [Summary] [Purpose] While using a plastic bottle with a handle,
Prevents looseness at the fitting part between the handle and the bottle, and prevents the handle from coming off the bottle. [Structure] A vertical rib for reinforcement is formed in the vicinity of an upper portion and a lower portion of a handle mounting portion of a plastic bottle body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plastic bottle with a handle, in which a separate handle member is attached to a plastic bottle body and used for liquid contents such as fruit juice, liquid detergent, and developing solution.

[0002]

[Prior art]

 Recently, as the application range of plastic bottles has expanded as a container for liquid contents, the content volume to be filled has increased, and the demand for bottles with a handle of 1 liter or more has increased. Conventionally, a method of attaching a handle to a plastic bottle is a blow molding method in which a part of the body of the bottle is formed into a recess at the same time as the bottle is molded into a handle, and a parison inside the handle (of a molten tubular shape) is used. (Molding material) is crushed and molded, and then cut to form a handle, or as disclosed in Japanese Utility Model Publication No. 55-101728, a fitting part is formed on a bottle body, and after molding, For example, a bottle with a handle is manufactured by fitting a separate handle to the fitting portion. PET bottles made of polyethylene terephthalate use the stretch blow molding method due to the characteristics of the material, and the shape of this molding method is restricted and pinch-off (fusion part at the edge of the cut part of the molten parison is used). In general, a method of attaching a separate handle member to the handle attaching recess is generally used for the PET bottle by the stretch blow molding method due to insufficient fusion of (1).

[0003]

[Problems to be solved by the device]

 However, when using a PET bottle with a separate handle, when using the handle, if you lift the bottle with the handle, the body and shoulder of the bottle body above the handle attachment part When deformed due to the weight, the fitting between the bottle body and the handle member may be loosened, or the handle may come off in severe cases. When the bottle is lifted by the handle and tilted to discharge the contents, the body of the bottle body below the handle mounting part is deformed by the weight of the contents of the bottle, and the bottle body and handle member There was a looseness in the fitting, or the handle could come off when it was terrible. In order to prevent these accidents, the method for improving the strength of the handle mounting recess is to form a concave-convex surface in the longitudinal direction, the lateral direction and the oblique direction (for example, Japanese Patent Laid-Open No. 2-191155). There is a method of forming a rib in the vertical direction on a part of the surface (for example, Japanese Patent Application Laid-Open No. 3-124557), a method of crystallization (Japanese Utility Model Laid-Open No. 64-2734), and further, for attaching a handle. A method of forming a circumferential concave rib continuously or immediately below the lower end of the concave portion (JP-A-3-43355), or at a position almost the same height as the handle mounting concave portion, and around the entire circumference of the bottle body. Although there is a method of forming a concave rib over the entire length (Japanese Utility Model Laid-Open No. 63-294352), there are no ribs for reinforcing the bottle body both above and below the handle mounting portion, or the formed rib is a cushion. There was a function Therefore, it has not been possible to sufficiently prevent looseness of the fitting portion between the bottle body and the handle member during use and detachment of the handle.

[0004]

[Means for Solving the Problems]

 As shown in FIG. 1, the present invention provides vertical ribs (121, 121) for increasing strength near the upper part and the lower part of a handle mounting part (113) of a plastic bottle body (110). 122) is a plastic bottle with a handle (100).

In the above-described handle attachment portion of the bottle body, the handle fitting portion having the strength of the bottle body and the fitting portion having the strength of the separate handle member (130) have the firm strength. It will be fitted.

Further, the vertical ribs for increasing the strength may be ribs protruding in a convex shape (convex ribs) or ribs having a concave groove (concave ribs), and the shape thereof may be angular, elliptical, or the like. Any shape is acceptable. The positions where the ribs are formed are the body portion (111) and the shoulder portion (112) above the handle attachment portion of the bottle body, and the body portion adjacent to the lower portion of the handle attachment portion.

The plastic bottle to which the present invention is applied is mainly a PET bottle made of polyethylene terephthalate by a stretch blow molding method, but is not limited to this. The material of the separate handle is mainly plastic, but metal or wood may be used.

[0008]

[Action]

 When you lift the plastic bottle filled with the contents with the handle, force is applied to the upper part of the handle mounting part of the bottle body. If the bottle body cannot withstand the force, the upper portion of the handle mounting portion of the bottle body is deformed. If this deformation is further increased, the fitting part at the upper part of the handle mounting part of the bottle body is also deformed, and the fitting part at the upper part of the handle is loosened or the fitting part at the upper part of the handle is disengaged. Also, when the contents are poured out by holding the handle, force is applied to the lower part of the handle mounting part of the bottle body. If the bottle body cannot withstand the force, the lower portion of the handle mounting portion of the bottle body will be deformed. If this deformation is further increased, the fitting portion below the handle mounting portion of the bottle body is also deformed, causing play in the fitting portion below the handle, or the fitting portion below the handle is disengaged. In the plastic bottle with a handle of the present invention, since vertical ribs that enhance the strength are formed in the upper and lower positions of the handle mounting portion of the bottle body, the vertical ribs are formed. Deformation is less likely to occur, and it is possible to prevent looseness in the fitting part of the handle mounting part of the bottle and removal of the handle.

[0009]

【Example】

 First, as shown in FIG. 1, there is a fitting portion for attaching a handle at an upper portion and a lower portion of a concave handle attaching portion (113) formed in a body portion (111) of a bottle body (110). Further, several ribs (121, 122) protruding in an elliptical vertical direction are provided on the upper shoulder portion (112) of the handle attaching portion and the lower body portion of the handle attaching portion, respectively. The bottle body according to this example was produced by stretch blow molding using polyethylene terephthalate (PET).

[0010] Separately from the bottle body, a handle having fitting portions at the upper portion and the lower portion which are fitted with the fitting portion of the handle attaching portion of the bottle body is fitted by injection molding using polypropylene. It was made.

Next, the fitting portion of the separately manufactured handle is firmly fitted to the fitting portion of the handle mounting portion of the bottle body manufactured as described above, and the plastic bottle with a handle (10) of the present embodiment is provided. 0) was prepared. Then, the plastic bottle with a handle is filled with the contents and sealed, and after a normal distribution process, the handle is shaken or opened, and the handle is used to discharge the entire contents. However, there was no play at the fitting part of the handle or the handle did not come off.

[0012]

[Effect of device]

 When the plastic bottle with a handle of the present invention is used, the vertical direction that enhances the strength of the bottle body near the upper part and the lower part of the handle attachment part of the bottle body to prevent deformation of the bottle body due to the weight of the bottle when in use Since the rib is formed, rattling may occur at the fitting part between the handle and the bottle, or the handle may come off from the bottle when carrying the bottle during handling such as carrying the bottle or pouring the contents. Can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a plastic bottle with a handle according to an embodiment of the present invention.

[Explanation of reference symbols] 100 ... Plastic bottle with handle 110 ... Bottle body 111 ... Body 112 ... Shoulder 113 ... Handle attachment 121, 122 ... Rib 130 ... Handle member

Claims (1)

[Scope of utility model registration request] 1. A plastic bottle with a handle, characterized in that a vertical rib is formed at a position close to an upper part and a lower part of a handle mounting part of a plastic bottle body.