JP3010339B2 - Spout attachment mechanism in cans - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for mounting a can, for example, containing a liquid wax, in particular, a spout.

[0002]

2. Description of the Related Art Conventionally, as this type of spout mounting mechanism, as shown in FIG. 4, a window hole 4 surrounded by an upright edge 3 is provided in an end plate 2 of a can body 1, and a cylindrical hole is formed in the window hole 4. The lower end tapered portion 7 is pressed into the compressed state using the upright edge 3 as a guide, and the lower end taper portion 7 is fitted into the outer surface of the end plate 2 by this fitting. The flange 8 provided and the locking edge 9 at the base of the tapered portion 7 pressed against the inner surface of the end plate, respectively, so that the pouring spout 6 is prevented from being pulled out by clamping the inner and outer surfaces of the end plate 2. It has been known.

[0003]

The spout mounting mechanism described in the above-mentioned prior art has a structure in which the locking edge 8 pressed against the inner surface of the end plate 2 is slightly in contact with the edge of the window hole 4. Therefore, there is no problem in pulling the spout 6 directly upward, but for example, when the spout 6 is inadvertently pressed from the side while the can body is lying down, the spout However, there is a problem that the liquid easily flows out of the container and the liquid is discharged, and the area is soiled. Therefore, the present invention utilizes the upright edge 3 for the spout fitting guide provided around the window hole,
The purpose is to effectively prevent the spout 6 from coming off.

[0004]

The object of the present invention is to provide a window hole surrounded by an upright edge in an end plate of a can body, and fitting a cylindrical synthetic resin spout into this window hole using the upright edge as a guide. A flange formed in the middle of the outside of the spout is brought into contact with the outer surface of the end plate, and the spout portion that has entered the can body by the above-mentioned fitting is pulled out to the inner surface of the end plate via locking means. In the pouring spout mounting mechanism to be stopped, the upright edge around the window hole is projected into the can body, and the upright edge is projected.
When the inner diameter surrounded by the end is formed smaller than the inner diameter of the window hole
First, the standing edge is formed in an arc shape bulging outward,
The lower part of the spout is provided with a body that fits the inside of the upright edge.
Formed at the lower end of the body with the protruding end of the upright edge
The lower end te is larger than the inner diameter and has a tapered surface on the outer periphery.
The lower part and lower part of the body part which fits the inner surface of the upright edge
In the groove-shaped recess formed between the upper surface of the end taper portion,
Achieved by engaging and locking the protruding lower end of the upright edge
Is done.

[0005]

1 and 2, reference numeral 1 denotes a can body, and an end plate 2 constituting the can body 1 is surrounded by an upright edge 3 formed inward of the can body 1 . A window hole 4 is provided, and a lower end tapered portion 7 of a cylindrical synthetic resin spout 6 in which a flip cap 5 is openably and closably fitted into the window hole 4 is compressed by using the inner surface of the upright edge 3 as a guide. is pushing fitted, the flange portion 8 provided outside middle portion of the spout 6 on surface of the end plate 2 by the fitting is in contact.

Therefore, the gist of the present invention is the above-described upright edge 3.
The protruding inside of the can body 1, the protruding end 3a to the outer peripheral cylinder portion of the pour spout 6 and type fitted to the can body 1 by the fitting,
The lower end tapered portion 7 of the spout 6 is engaged and bent inwardly in a bent manner against the elasticity of the spout material.

FIG. 3 shows a second embodiment. In this embodiment, a groove 6a is formed in the outer periphery of the spout 6 so as to surround the groove 6a. It is bent and intervened and locked.

In FIGS. 2 and 3, a method for interlocking the projecting edge 3a with the outer peripheral body of the spout 6 is as follows. The projection edge 3a is naturally bent inward as shown in the figure, and is locked to the body of the spout by moving the split mold (not shown) around the inside and moving the split mold in the direction of reducing the inner diameter.

[0009]

According to the configuration of the present invention as described above,
The following effects can be obtained.

The spout of the spout provided around the window hole is protruded toward the inside of the can body, and the protruding edge is fitted into the window hole using the upright edge as a guide, and the pouring penetrated into the can body. The outer peripheral body of the mouth is interposed and locked inwardly with respect to its axis, so it is strong not only to prevent the spout from coming off just above, but also to be particularly resistant to lateral pressure. Thus, it is possible to prevent the liquid from flowing out due to detachment of the spout from the can body, thereby eliminating the problem which has conventionally occurred.

[Brief description of the drawings]

FIG. 1 is a sectional view of a can body.

It is an enlarged sectional view of FIG. 1. FIG.

FIG. 3 is an enlarged sectional view of a main part of a can according to a second embodiment.

FIG. 4 is a sectional view of a conventional can.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Can body 2 End plate 3 Standing edge 3a Projecting end 4 Window hole 6 Spout 7 Lower end taper part 8 Flange part

Claims (1)

(57) [Claims] An end plate of a can body is provided with a window hole surrounded by an upright edge. A tubular synthetic resin spout is fitted into the window hole using the upright edge as a guide, and a middle portion outside the spout. A spout that abuts the flange formed on the end plate to the outer surface of the end plate, and prevents the spout portion that has entered the can body by the above-mentioned fitting from being pulled out from the inner surface of the end plate through a locking means. in the attachment mechanism, protrudes orthostatic edge around the window hole to the inside of the can body, this
Make the inside diameter surrounded by the protruding end of the upright edge smaller than the inside diameter of the window hole
As well as forming the upstanding edge into an arc that swells outward
, While the lower part of the spout fits inside the upright edge
The torso is provided with a protruding end at the bottom of the torso.
The diameter is larger than the formed inner diameter, and a tapered surface is formed on the outer circumference
Body with a tapered lower end that fits inside the upright edge
Groove formed between the lower end of the upper surface and the upper surface of the lower end taper portion
Where the lower end protruding end of the upright edge is bite-locked.
A spout mounting mechanism for a can.