JPH0732441Y2 - A spout for a container with an opening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a spout of a container having an opening device.

(Prior Art) Conventionally, in a cylindrical spout of this type, as shown in FIG. 9, a spout body (1), a cap (2) screwed to the spout body, and a spout body. (1) A piercing tool comprising a piercing tool (3) housed inside, and when the consumer or the like opens it for use, after unscrewing the cap (2), the piercing tool is housed with the tip facing upward. Take out the ingredient (3), put it back in the spout body (1), press it with your fingertips, etc. to break through the virgin film (4) and container (5).
The content liquid was poured from inside.

(Problems to be solved by the invention) In the conventional case as described above, when opening the bag for use, the cap is unscrewed, the piercing tool is taken out from the spout body, and it is reversed again. Since it is necessary to insert the fingertip into the spout body and press the piercing tool into the spout body, not only is the load and labor on the fingertip, but also the fingertip etc. touches the spout body. , Not hygienic.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention sanitarily does not touch the inside of the spout main body with a fingertip or the like only by rotating the cap in the screw unscrew direction. , The virgin film can be easily and surely pierced and opened, and the pierced film does not drop into the container. The piercing tool is prevented from being pulled out and the piercing tool is prevented from falling into the container. Therefore, the present invention has the following configuration.

That is, the present invention comprises a spout body, a cap, and a cylindrical piercing tool, and the cap has a pitch in the same direction as the screw on the outer surface of the spout body to be screwed with the cap. A male screw portion provided with a large screw is projected from the back surface of the top plate, and the cylindrical piercing tool has an inner surface thereof at a spout of a container provided with a screw screwed with the male screw portion,
The wide annular projection provided on the upper end of the outer surface of the cylindrical piercing device has two vertical grooves at symmetrical positions thereof, and the lower end is inclined inwardly and has no piercing part in part. A serrated piercing part is provided, and the spout barrel of the spout main body has an inner surface,
A vertical rib that is screwed into the vertical groove of the tubular piercing tool is provided, and when the tubular piercing tool descends, a wide annular protrusion on the outer surface of the upper end of the tubular piercing tool is attached to the lower end of the inner surface of the dispensing tube. A structure in which an annular locking rib that locks the lower end step portion of the strip and an annular engaging rib that engages the upper end portion of the wide annular projection described above are provided in the middle of the inner surface of the spout cylinder. Is.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

The spout of a container having the opening device of the present invention comprises a tubular spout body (a), a cap (b) screwed into the spout body, and a tubular piercing tool that is inserted into and ejected from the spout body (a). It is composed of three members (c), and each of them is injection-molded with a synthetic resin.

The spout body (a) is composed of a spout cylinder (10) and a flange (11) for attaching to the container body, and a cap (b) is screwed onto the outer surface of the spout cylinder (10). A screw (12) is formed.

Further, on the inner surface of the pouring tube (10), an annular locking rib (13) associated with a cylindrical piercing tool (c) described later is provided at the lower end portion, and vertical ribs (14) (14) are symmetrical. In position, annular engagement ribs (15)
Are provided on the lower end side of the intermediate portion.

In addition, (11 ') is an annular rib for welding to the container.

On the inner surface of the cap (b), a screw (16) that is screwed into the screw (12) of the spout barrel (10) of the spout body (a) is provided, and at the center of the back surface of the top plate (17). A male screw part (19) having a screw (18) is projected.

The screw (18) of this male screw part (19) and the spout body (a)
The direction of the screw is the same as that of the screw (12) on the outer surface of the pouring cylinder (10), but the screw (18) is larger than the screw (12) at the pitch.

Next, the tubular piercing tool (c) is provided with a screw (20) which is screwed onto the screw (18) of the male screw part (19) on the inner surface thereof, and has a serrated piercing tool at the tip thereof. (21) is inclined slightly inward, and the piercing end of its serrated piercing part (21) is slightly higher at a position symmetrical with respect to the plane and slightly lower at a position crossing it. , The lower one is missing the piercing part (21a).

In addition, the cylindrical piercing tool (c) has a wide annular protrusion (22) at the upper end of its outer surface, and the outer surface of the inner surface of the spout tube (10) of the spout body (a) described above. Vertical grooves (23) (23) into which vertical ribs (14) (14) fitted at symmetrical positions are fitted are provided at symmetrical positions, and through holes (24) are provided below. .

The wide annular projection (22) at the upper end of the outer surface of the tubular piercing tool (c) has a lower end step of the annular piercing tool (22) when the tubular piercing tool (c) descends. (22 ') engages with the annular locking rib (13) at the lower end of the inner surface of the spout cylinder (10) of the spout body (a), and the upper end surface (22') has an intermediate annular engaging rib (15). ), The width of the annular ridge (22) is
The distance between the annular locking rib (13) and the annular engaging rib (15) is approximately equal.

As described above, the vertical ribs (14) (14) and the vertical grooves (23) (23) are engaged with each other at symmetrical positions on the circumference. The movement is dynamic and ideally allows smooth sliding.

The spout body (a) and the cap (b) having the above structure
When the cap (b) is fully screwed to the right as shown in FIG. 1 in the combination, the tubular piercing tool (c) is , The inner surface of the screw (20) and the outer peripheral upper end of the wide annular projection (22) at the outer surface of the vertical groove (23), (23), the cap (b) external thread (19) screw (18) and note Outlet barrel (1) of outlet body (a)
By screwing and fitting with the vertical ribs (14) (14) on the inner surface of (0), the cap (b) is withdrawn until it comes into contact with the back surface of the top plate (17), and the serrated piercing portion (21) of the tip end portion (21). ) Is a position retracted from the tip of the male screw part (19) of the cap (b).

Next, when pouring the contents out of the container, the cap (b) is rotated in the leftward screw-unwinding direction, and the screw (16) of the cap (b) and the pouring cylinder of the spout main body (a) are rotated. (Ten)
The screw (18) of the cap (b) and the screw (20) of the inner surface of the cylindrical piercing tool (c) are screwed together according to the pitch of the screw with which the screw (12) of The matching screws have a larger pitch, and the screws (12) and (1
Since it is in the same direction as 8), the cap (b) and the spouting barrel (10), the male screw part (19) and the cylindrical piercing tool (c) are rotated by rotating the cap (b) in the unscrewing direction. Although they are relatively separated from each other, the pitch of the screw (18) of the male screw part (19) is larger than the pitch of the screw (12) of the spout cylinder (10),
The distance between the male screw part (19) and the cylindrical piercing tool (c) is
It is larger than the distance between the cap (b) and the spout barrel (10).

Moreover, in the tubular piercing tool (c), the vertical grooves (23) and (23) of the wide annular ridge (22) at the upper end of the tubular piercing tool (c) are the vertical ribs (14) on the inner surface of the pouring tube (10), Since they are engaged with (14) respectively, they are guided by this and propulsively project without rotating.

That is, when the protruding amount of the piercing tool (c) is larger than the unthreading amount of the cap (b) and the cap (b) is unthreaded, the tubular piercing tool (c) is As shown in FIG. 3, the serrated piercing part (21) projects from the lower surface of the collar part (11) of the spout body (a).

When the cap (b) is unscrewed, the lower end step (2) of the wide annular protrusion (22) at the upper end of the outer surface of the cylindrical piercing tool (c) is
2 ') engages with the annular locking rib (13) at the lower end of the dispensing cylinder (10), and the upper end surface (22') has an annular engaging rib (in the middle of the inner surface of the dispensing cylinder (10) ( Engage with the bottom edge of 15).

The stab-like piercing part (21) of the cylindrical piercing tool (c) thus projected has the annular rib (11 ') of the collar part (11) of the spout body (a) and is a virgin film of a welded container. Although it pierces (not shown) to open, the piercing part (21) inclines slightly inward, and its tip is symmetrical with respect to the plane from the higher side to the lower side crossing this. Since it has a wavy shape, it breaks along a circular arc from the high side to the low side and opens in a circular shape, but since one side of the lower side lacks a piercing part (21a), it is pierced. The film does not fall into the container.

When the opened container is tilted, the content liquid flows out not only through the central portion of the cylindrical piercing device (c) but also through the through hole (24).

At this time, in the tubular piercing tool (c), the wide annular projection (22) at the upper end of the outer surface is fitted to the annular engaging rib (15) of the pouring tube (10) at the upper end surface (22 ″). Engage the bottom step (2
In 2 '), it is stable because it is locked to the annular locking rib (13) of the pouring cylinder (10).

(Effect of the Invention) As described above, the present invention is composed of the spout main body, the cap, and the tubular piercing tool, and when the cap is rotated in the screw-removing direction, the reverse In addition, since the tubular piercing tool projects with a protrusion amount larger than the screw unthreading amount of the cap, it is possible to pierce the virgin film of the container with the tubular piercing tool before unthreading the cap and sanitarily open it. it can. At this time, the film that has been pierced does not drop into the container because a part of the film is connected to the container side.

This tubular piercing device has two vertical ribs located symmetrically on the inner surface of the spouting tube and two longitudinal ribs located on the outer surface of the tubular piercing device at the time of projecting. Since it is guided by the engagement with the vertical groove of the, the operation is facilitated and the protrusion is smooth, and with a slight inward inclination of the serrated piercing part, a part is left in the virgin film and tidy. It is possible to open a circular hole, which makes the outflow through the circular hole smooth rather than just breaking through.

Moreover, when the cap is unscrewed, the tubular piercing tool is locked to the locking rib at the lower end of the pouring tube by the lower end step portion of the wide annular projection on the outer surface of the upper end of the tubular piercing tool. Since the upper end of the strip engages with the annular engaging rib at the center, when the content liquid is poured out, the content flows out and
The tubular piercing tool does not come out and flow out, and does not fall into the container, so that it can be poured out in an extremely stable state.

After the contents have been poured out, if the unscrewed cap is screwed into the extraction cylinder of the spout body, the male thread of the cap causes the piercing tool to retract and return to its original position. can do.

[Brief description of drawings]

FIG. 1 is a front view in which a half of a spout of a container having an opening device according to the present invention is shown in section, FIG. 2 is a similar front view showing the operating state of the same, and FIG. A similar front view showing a state in which the spout is unscrewed from the spout body, FIG. 4 is a front view in which a half portion of the spout body is shown in cross section, FIG. 5 is a plan view of the spout body, and FIG. 6 is a piercing tool. FIG. 7 is a front view of a half of the stab in section, FIG. 7 is a plan view of the piercing tool, FIG. 8 is a bottom view of the piercing tool, and FIG. 9 is a cross-sectional view showing a state in which the conventional product is used. Reference symbol a ...... spout body b ... cap c ... piercing tool 10 ... spout tube 11 ... collar part 12, 16, 18, 20 …… screw 13 …… annular locking rib 14 …… vertical rib 15 …… Annular engagement rib 17 …… Top plate 19 …… Male thread 21 …… Piercing part 22 …… Annular ridge 23 …… Vertical groove 24 …… Through hole

Claims (1)

[Scope of utility model registration request] 1. A tubular spout body, a cap screwed to the spout body, and a tubular piercing tool that can move up and down in the spout body. The cap includes a cap and a screw. In the same direction as the screw on the outer surface of the spout cylinder of the spout body to be mated, a male screw part provided with a screw with a pitch larger than this is projected from the back surface of the top plate. At the spout of the container provided with a screw to be screwed with the above male screw portion,
The wide annular projection provided on the upper end of the outer surface of the cylindrical piercing device has two vertical grooves at symmetrical positions thereof, and the lower end is inclined inwardly and has no piercing part in part. A serrated piercing portion is provided, and a pouring barrel of the pouring outlet main body is provided with a vertical rib that fits into a vertical groove of the tubular piercing tool on its inner surface.
When the tubular piercing tool descends, at the lower end of the inner surface of the dispensing tube,
An annular locking rib that locks the lower end step portion of the wide annular projection on the outer surface of the upper end of the tubular piercing tool, and the upper end of the wide annular projection described above in the middle of the inner surface of the spout tube. And a ring-shaped engaging rib for opening the container.