CN1168636C - Closure for dispensing a content - Google Patents

Abstract

A closure (1) for packaging a liquid container (3) includes a cap (5) rotatably mounted to the neck of the container, the cap (5) having a channel (6) for axially discharging the contents, and movable along the channel to open or close the channel (6). A valve (7) is threadedly engaged with the channel (6), and a guide sleeve (10) prevents the valve from rotating relative to the channel, thereby allowing the cap (5) to rotate relative to the valve (7) and the channel (6).

Description

Closures for dispensing contents

technical field

The invention relates to a closure for a container. In particular, the invention relates to closures for packaging liquids, especially viscous liquid containers.

Background technique

Most container bottles for viscous liquids, such as liquid detergents, preferably have a large spout so that the detergent, usually viscous detergents, can flow freely and comfortably from the inside of the bottle or container.

However, a disadvantage of this packaging system is that it is difficult to control the flow of the contents through the mouth of the bottle. At this time, the user controls the outflow of the contents by turning the container over, which eventually leads to the waste of some liquid materials, such as liquid detergent. Since it is difficult for the user to mechanically control the contents to be dispensed, the user must carefully control the manipulation of the hand when inverting the container in order to dispense the liquid without spraying or pouring excess liquid.

Contents of the invention

The purpose of the present invention is to at least partly overcome the above-mentioned problems. In particular, the purpose of the present invention is to provide a system that is easy to control the flow of liquid, and it can be controlled by the user according to the needs, that is, the flow of the liquid can be changed. outflow, thus preventing waste of contents.

The present invention provides a closure for a container comprising: a cap rotatably mounted to the neck of the container, said cap having an axial contents discharge passage; a valve movable along the axial passage , so as to open or close the channel; the discharge channel of the contents of the cover includes one or more openings on the side wall through holes, the openings communicate with the interior of the container, characterized in that the rotation of the cover makes The valve moves axially along the discharge passage between an open position in which one or more of the through holes are opened and a closed position in which the through holes are closed to prevent the passage of fluid.

A closure formed in accordance with the invention allows the user to effectively control the discharge of the contents when poured from the container in a simple manner. Since the adjustment means comprise a cap which can be turned in a simple, conventional manner, the outflow of the liquid contents through the outlet channel can thus be adjusted.

In one embodiment of the invention, the valve engages in threaded contact with the outlet passage of the contents. Preferably the valve is prevented from rotating within the cover relative to the cover so that the valve moves relative to the cover as the cover is rotated. The ideal means of preventing rotation of the valve relative to the cap is a guide which allows the valve to move axially along the open passage of the contents. Generally, the guide device includes a guide sleeve, and the guide sleeve contacts and fits with the cylinder of the valve. Preferably, the cylinder of the valve and the guide sleeve have mutually engaging structures, for example, teeth on the valve cylinder and longitudinal guide ribs in the guide sleeve.

In a preferred embodiment of the invention, the guide sleeve comprises a lower guide portion which is located below the outlet channel and is generally coextensive with the outlet channel of the contents. The upper portion of the guide sleeve includes an upper lip which fits over the neck of the container. Typically, the cap is snap-fitted onto the container. The cap preferably includes a pair of concentric skirt elements. Ideally, the skirts contact the inner and outer surfaces of the mating container neck in a sealing manner, or the lip of the guide sleeve. The inner and outer surfaces are close to each other.

In a preferred embodiment of the present invention, the open channel of the contents includes one or more open through holes on the side wall of the channel, the openings communicate with the interior of the container, wherein the channel is opened by the movement of the valve, or at least one opening is closed. Typically valves include through holes so that when the valve is in a closed passage position in the outlet passage of the contents, a certain amount of contents remaining in the passage will be discharged through the valve. In this way, when the valve is in the fully closed position, a residual quantity of the contents flows out of the container, so that the amount of such expelled liquid contents is fully controlled. If a larger volume of liquid flow is required, turn the cap and move the valve along the channel to open the channel. The amount of movement of the valve along the channel determines the amount of liquid flow through the channel.

The ideal closure comprises a circumferential sealing gasket mounted between the valve and the open passage of the contents, preferably towards the opening of the passage. The closure may also include an outer cap which snaps or threads onto the container. Preferably, the cap is a sealing outer cap which in a preferred embodiment includes means for sealing contact with the neck or opening of the outlet passage of the contents, these means being generally a skirt extending downwardly from the underside of the cap, It fits in contact with the lid and container, sealing the neck and passageway.

The invention also relates to a container according to the invention comprising a closure.

Description of drawings

The present invention will be more clearly understood by describing certain embodiments of the invention, by way of example only, with reference to the accompanying drawings.

Figure 1 is a cross-sectional view of a closure according to the invention, showing the closure secured to the neck of a container, and including a sealing outer cap.

Figure 2 is a cross-sectional view of the container and closure shown in Figure 1 with the valve in a fully extended position.

Figure 3 is a cross-sectional view of the container and closure shown in Figure 1 with the valve in a fully retracted position.

Figure 4 is a partial sectional view of the lid forming part of the closure shown in Figures 1-3.

Fig. 5 is a bottom view of the cover shown in Fig. 4 .

Figure 6 is a partial sectional view of the guide sleeve forming part of the closure shown in Figures 1-3.

Fig. 7 is a top view of the guide sleeve shown in Fig. 6 .

Figure 8 is a partial sectional view of the valve shown in Figures 1-3 forming part of the closure.

Fig. 9 is a top view of the valve shown in Fig. 8 .

Figure 10 is a side sectional view of the sealing outer cap forming part of the closure shown in Figures 1-3.

Detailed ways

First of all, reference is made to the accompanying drawings 1-3, which show a closure according to the invention, generally indicated by the reference numeral 1, which is secured to the neck 2 of a container 3. As shown in FIG. The closure 1 comprises a cap 5, which is rotatably mounted on the neck 2 of the container 3, on which there is an axial screw discharge channel 6 for the contents and a screw valve 7 which responds to the rotation of the cap 5 and which Move along lane 6. An opening 8 in the channel 6 communicates with the interior of the container 3 and a valve 7 can be moved along the channel 6 in order to open or close the opening 8 . Guiding means are provided to prevent the valve 7 from turning relative to the cap 5, thereby providing relative movement between them, said guiding means comprising a guide sleeve 10 mounted on the neck 2 of the container 3, the guide sleeve 10 Projects into the neck 2 of the container 3 , it is located below the neck 2 and is coextensive with the outlet channel 6 .

In more detail, as shown in FIGS. 6 and 7 , the guide sleeve 10 includes an upper lip 12 engaging the neck 2 of the container 3 , the lip 12 including threads 13 on the outer circumference for securing the cap 5 . A through hole 14 in the upper part of the guide sleeve 10 makes it possible to connect the contents channel to the outlet channel 6 . The interior of the guide sleeve 10 also includes a series of longitudinal ribs 15, the function of which will be explained below.

Referring to FIGS. 4 and 5 , the cover 5 includes a pair of concentric skirts, an outer skirt 30 in contact with the exterior of the lip 12 of the guide sleeve 10 and an inner skirt 31 in sealing contact with the interior of the skirt 12 .

Referring to FIGS. 8 and 9 , the valve 7 includes an upper threaded portion 17 and a lower cylinder 18 , and the lower cylinder 18 can slide in the guide sleeve 10 . The lower cylinder 18 comprises a series of circumferentially arranged teeth 19 fitted in the spaces between the longitudinal ribs 15 of the guide sleeve 10, thus guiding the movement of the valve 7 along the channel 6, At the same time, the valve 7 is prevented from rotating relative to the cover 5 . The valve 7 also includes a passage hole 20 . In the mounting assembly, the circumferential gasket 21 is adjacent to the top of the channel 6 and between the valve 7 and the channel 6 .

Referring to FIG. 10 , the sealing outer cap 25 includes a threaded cap body 26 having a skirt 27 extending downwardly from the top of the outer cap 25 , the skirt 27 being sized to be close to the interior of the neck 28 of the channel 6 Seal fit.

In use, when the cover 5 is turned in one direction, said cover 5 will move and extend the valve 7 to the position shown in FIG. 2 . In this position, the opening 8 in the channel 6 is completely covered by the valve 7 , so that the contents of the container cannot escape through the open channel 6 . However, a remaining part of the contents can be dispensed through the through hole 20 in the valve 7 . Turning the cap 5 in the opposite direction will retract the valve 7 to the position in the channel shown in FIG. 3 . In this fully retracted position, the valve 7 leaves the opening 8 exposed, thus providing a dispensing outlet through the apertured channel 6 in addition to the aperture 20 in the valve 7 . As shown in Figure 3, the content in the container flows out of the container along the direction indicated by arrow A. By moving the valve 7 along the channel 6 the discharge of the contents out of the open channel 6 can be varied.

The openings 14 of the upper flow channel of the guide sleeve can have other shapes, for example can be oriented plates, or molded plates with spaces of different shapes between them. The number of ribs 15 can be two or more, preferably four, and the guide sleeve itself can also have other shapes, so that, in addition to forming the flow passage of the contents, the main body of the valve can also be kept upward or downward in the guide sleeve. Move down.

The combined shape of the ribs of the guide sleeve and the teeth of the valve can be other shapes than the embodiment shown in the accompanying drawings, so that they are contacted and fitted to prevent the valve from rotating relative to the cover.

As shown in the drawings, the inlet and outlet of the valve can be freely changed, or the size of the inlet and outlet can be partially reduced, so as to more precisely control the flow of the discharged contents.

The present invention is not limited to the above-described embodiments, and the configurations of the above-described embodiments may be changed within the scope not departing from the inventive concept.

Claims (11)

1. A closure for a container comprising: a cap rotatably mounted to the neck of the container, said cap having an axial contents discharge channel; a valve movable along the axial passage to open or close the passage; The discharge channel of the contents of the cap comprises one or more openings on the side wall through-holes, the openings communicating with the interior of the container, It is characterized in that the rotation of the cover causes the valve to move axially along the discharge passage between an open position and a closed position, in the open position, one or more of the through holes are opened; in the closed position, the The through holes are closed to prevent passage of fluid. 2. A closure as claimed in claim 1, wherein the valve is threadedly engaged with the passage. 3. A closure as claimed in claim 1 or 2, including guide means to prevent rotation of the valve relative to the cap as the valve moves axially along the passage. 4. The closure according to claim 3, wherein the guiding device comprises a guiding sleeve, and the guiding sleeve contacts and fits with the cylinder of the valve. 5. A closure as claimed in claim 4, wherein the guide sleeve includes longitudinal guide ribs which engage teeth on the stem of the valve. 6. The closure as claimed in claim 1, wherein the valve has a through-opening. 7. The closure of claim 1, further comprising a peripheral gasket mounted between the valve and the discharge passage of the contents. 8. The closure of claim 1, further comprising a sealing cover. 9. A closure as claimed in claim 8, wherein said sealing outer cap sealingly engages against the neck of the contents discharge channel. 10. A container fitted with a closure according to any preceding claim. 11. A closure according to one of the preceding claims 1 to 9 for viscous liquids, in particular viscous cleaning liquids.

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