DE102011000902B3 - Closure for liquid/powdered laundry detergent bottle, has cap provided with halt screw thread, where increase of thread differs from increase of mounting thread such that output connecting piece is pulled out of closure connecting piece - Google Patents

Abstract

The closure has a closure cap (2) for closing/locking of a fastenable closure connecting piece (1) that includes a cap mounting thread (6) at an aperture of a laundry detergent bottle. The closure cap comprises a halt screw thread (13) aligned to interior of the connecting piece. An output connecting piece (8) with retainer tins (14) is screwable in the halt screw thread, where the increase of the halt screw thread differs from increase of a mounting thread (7) such that the output connecting piece is pulled out of the closure connecting piece when scaling down the closure cap. The laundry detergent bottle is a liquid/powdered laundry detergent bottle.

Description

The present invention relates to a closure for closing a container, which has a displaceable dispensing nozzle, through which a targeted output of a medium in the container is made possible.

The WO 2009/121 192 A1 shows an output device with an extended spout. The spout is screwed to a cap and is after opening the cap pulled out of the closure and bolted to a stopper. Then the cap can be removed from the spout.

The DE 41 30 950 A1 shows a closure with a latchable on a Behaltersstutzen fastener. A spout is connected via a bellows with the Behaltstutzen so that the spout can be pulled out of the Behaltstutzen. For this purpose, a sealing cap must first be loosened from the container neck.

The US Pat. No. 7,624,899 B1 shows a retractable dispensing attachment, in which a dispensing nozzle is connected via a bellows with a Behaltnis. The dispensing nozzle and the bellows in a pushed together state can be closed and voided by means of a tube-like cap.

The US 3 250 428 A shows a closure with a pull-out outlet. The dispensing nozzle is closed by a closure cap, which simultaneously serves to pull the dispensing nozzle out of the container or into the container.

The EP 0 319 005 A2 shows a container with a Entnahmeoffnung, which is closed by a closure. In the closure, the Entnahmeoffnung is covered by a Behalterstutzen. On the front surface of Behalterstutzens a flange of the base part of the closure is held by a cross-over this and a covenant of Behalterstutzens behind the ring. The edge region of the Entnahmeoffnung is printed to form the Behalterstutzens rohrformig outward, the end of which is deformed facing outward.

From the EP 0 306 670 A2 For example, a plastic closure for a plastic container is known which comprises a threaded ring and a flexible bellows insert. On the flexible bellows sits a spout, on the external thread a Bugelkappe is screwed. By means of the Bugelkappe the flexible bellows can be pulled out of the plastic closure or pushed into this.

The US 4 726 491 A shows a container with a spout, which can be pulled out of the container when the container is opened. The spout is bolted to a closure cap while the closure cap is secured to the container by a snap fit on a closure neck. At an in 4 No. 4,726,491 A, the spout is made of a flexible material, so that the extraction of the spout leads to a shape change of the spout. A disadvantage of this solution is that the opening and closing of Behaltnisses each require two steps. On the one hand, the cap must be screwed down from the spout or screwed onto the spout and on the other hand, the snap connection between the cap and the Behalt to solve or create.

There are other solutions known from the prior art, in which a pour spout is pulled out of the closure or Behaltnis using the cap, including from the DE 41 00 542 C1 , of the EP 0 269 499 A1 , of the DE 103 02 587 A1 , of the EP 0 144 829 A2 and the EP 0 417 453 A1 .

Furthermore, it is among others from the US 2 202 652 A , of the DE 697 20 526 T2 , of the DE 20 2008 001 732 U1 and the WO 02/16 219 A1 known to form a pour spout as a bellows.

The DE 699 27 753 T2 shows a plastic container with Rückflußausgießer, in which a protruding tulle has a pouring lip.

The DE 10 2008 033 372 A1 shows a container for storing and pouring a medium, in which an elastic cap serves both as a tulle for pouring and as a closure.

From the DE 20 2004 009 760 U1 a spout for a Flussigkeitsbehalter is known in which a collecting funnel is formed in the spout.

The DE 38 02 896 A1 and the DE 295 19 215 U1 each show a pouring device with a movable spout.

The object of the present invention, starting from the prior art, is to provide a closure for closing a container, in which an outlet nozzle during the opening and closing of the Closure effortfully pulled out of the closure or can be pushed into the closure.

The above object is achieved by a closure according to the appended claim 1.

The closure according to the invention serves to close a Behaltnisses, for example in the form of a carton or a bottle, which z. B. is filled with a drink, a liquid detergent or a powdered detergent as a medium. The closure is used in particular for repeatedly closing and opening an opening of the container. The closure initially comprises a closure stub which can be fastened to the opening of the container and which has a cap fastening thread. The closure neck can be fastened to the container, for example, by a threaded connection, by a snap connection or by an adhesive connection. Also, the closure can be einstuckig formed with the Behaltnis. The spigot encloses the opening of Behaltnisses over which the medium in Behaltnis can be output. For this purpose, the closure neck preferably has a tubular basic body. The closure according to the invention further comprises a closure cap for closing the closure neck. The cap has a mounting thread with which the cap can be screwed onto the cap attachment thread of the cap and screwed down from it. The closure cap furthermore has a holding thread which is aligned with the interior of the closure neck and which can not be brought into engagement with the cap fastening thread or with the fastening thread. The closure according to the invention further comprises a dispensing nozzle for targeted dispensing of the medium in the container. The dispensing nozzle is arranged in the closure neck and displaceable relative to the closure neck. The dispensing nozzle preferably has a tubular basic body. The displaceability of the dispensing nozzle is formed in particular in the axis of the closure. The dispensing nozzle can be moved from a hold position to an issue position and vice versa. The dispensing nozzle is in the retaining position when the closure is closed by means of the closure cap, for which the dispensing nozzle in the retaining position allows the closure cap to be screwed onto the closure. For this purpose, the dispensing nozzle in the retaining position is preferably arranged completely or almost completely in the closure neck. The dispensing nozzle is in the dispensing position if the medium is to be dispensed from the container through the dispensing nozzle. In this state, the cap is screwed down from the nozzle and removed from the outlet. In order to facilitate the targeted output of the medium, the dispensing nozzle protrudes in its dispensing position out of the spigot. The dispensing nozzle has holding elements with which the dispensing nozzle in the retaining thread of the closure cap can be screwed. Consequently, the holding elements can be in the function of a thread. Using the retaining elements on the outlet nozzle, the outlet nozzle can be fastened to the cap by means of a screw connection. The screwing of the dispensing nozzle to the closure cap and the screwing of the closure cap to the closure neck preferably have a common axis of rotation. In this case, the cap attachment thread on the closure nozzle is preferably arranged rotationally fixed relative to the dispensing nozzle with the holding elements. In the same way, the fastening thread on the cap is preferably arranged rotationally fixed relative to the retaining thread on the closure cap. As soon as both the cap fastening thread with the fastening thread and the retaining thread engage with the retaining elements, rotating the closure cap relative to the closure neck causes the fastening thread to be screwed relative to the cap fastening thread and at the same time also the retaining elements on the dispensing nozzle relative to the retaining thread. According to the invention, the pitch of the retaining thread differs from the pitch of the fastening thread, so that screwing down the closure cap from the closure nozzle simultaneously causes the outlet nozzle to be at least partially pulled out of the closure nozzle. Consequently, the dispensing nozzle is already brought from the retaining position when releasing the cap from the retaining position and at least moved in the direction of the dispensing position, so that when opening the closure no separate step is required to bring the dispensing nozzle from the jam position. In this case, the closure can be executed such that the dispensing nozzle is forced into the dispensing position due to internal forces, after the closure cap has been completely screwed down from the closure nozzle. Alternatively, the closure can be designed such that only a small displacement path is required after the screw cap has been completely unscrewed from the closure stub to bring the dispensing nozzle into the dispensing position. After unscrewing the cap from the spigot, the cap is to be solved by the dispensing nozzle, but not a complete threaded connection is more loose, but the loosening of the cap from the dispensing nozzle after unscrewing the cap from the nozzle, for example it is facilitated that the screw connection between the holding thread and the dispensing nozzle with the holding elements has less than a thread turn, or the holding thread is executed like a backdrop, to allow the loosening of the dispensing nozzle with the holding elements from the holding thread without further rotation. Also, the dispensing nozzle is preferably resilient to facilitate loosening of the closure cap from the dispensing nozzle after unscrewing the closure cap from the closure. For example, the rohrformige output nozzle can be deformed due to its elasticity such that it has a ellipsenformigen cross section instead of a kreisformigen, whereby the holding elements no longer engage in the holding thread and thus can slide out of the holding thread. The elasticity of the dispensing nozzle further ensures the formation of a seal between the dispensing nozzle and the closure cap when the closure cap is screwed onto the closure nozzle. Also, the retaining elements may be made elastic to facilitate the loosening of the cap from the dispensing nozzle after unscrewing the cap from the spigot.

In a preferred embodiment of the closure according to the invention, the holding elements can be latched into the holding thread in order to facilitate an import of the dispensing nozzle into the holding thread. In this embodiment, the closure of the closure is facilitated because the retaining thread does not have to be completely screwed onto the dispensing nozzle with the holding elements, but this screw is already at least partially created by the engagement of the holding elements in the holding thread. Also in this embodiment, the dispensing nozzle is preferably formed elastically, wherein also the holding elements can be designed to be elastic.

The retaining thread preferably has a smaller pitch than the fastening thread. The smaller pitch of the retaining thread causes the closure cap to be displaced axially by a greater amount relative to the closure neck during unscrewing of the closure cap from the closure neck than the holding thread is displaced axially relative to the dispensing nozzle so that the dispensing nozzle is displaced axially relative to the closure neck.

In a particular embodiment of the closure according to the invention, the pitch of the retaining thread is designed negatively with respect to the pitch of the fastening thread. This can for example be realized in that one of the two threads is a right-hand thread, while the other of the two threads is a left-hand thread. In this embodiment, even a slight twisting of the closure cap when screwing down the closure cap from the closure nozzle causes the dispensing nozzle to be displaced axially by a large amount in relation to the closure nozzle. In this case, the dispensing nozzle is moved closer to the closure cap, whereby the thereby taking place continued screwing the dispensing nozzle on the cap after complete removal of the cap from the nozzle can be solved, for example, that the holding elements are pulled at the outlet port through openings in a backdrop of the holding thread.

Loosening the closure cap from the dispensing nozzle after loosening the closure cap from the closure can also be facilitated by a profile height of a thread profile of the holding thread formed in the radial direction decreasing over the course of the holding thread in the direction of the dispensing nozzle. Consequently, by an increased tensile force, the screw connection of the dispensing nozzle with the holding elements relative to the holding thread can be achieved by pulling the holding elements out of the threads with the lower profile height.

The holding elements are preferably formed by cams, which are arranged on the outer circumference of the dispensing nozzle. The cams are preferably tapered in the direction of the closure cap to facilitate the engagement of the cams in the holding thread.

It only takes less circumferentially distributed cams on the output port to ensure their function. For example, only two of the cams or two pairs of cams may be arranged on the dispensing nozzle, which diametrically oppose the dispensing nozzle. Thus, the dispensing nozzle is held only at two or four points in the retaining thread on the cap, which is enough in many cases enough to pull the dispensing nozzle by means of the retaining thread from the retaining position, and on the other hand, the loosening of the cap from the dispensing nozzle after unseating the cap from Closure to relieved.

In a preferred embodiment of the inventive closure of the dispensing nozzle is elastic and has an internal tension, through which he can remain in the absence of force only in the retaining position and in the dispensing position. Due to the internal tension there is a reversal point on the displacement path between the retaining position and the dispensing position. As soon as you move the Output port opposite the closing piece of the reversal point is exceeded, the discharge port is urged due to its internal forces in the other position. As a result, when moving from the retaining position into the dispensing position during the opening of the closure, the dispensing nozzle only has to be partially pulled out of the retaining position by turning the closure cap relative to the closure nozzle in order to automatically reach the dispensing position after overcoming the reversal point.

Preferably, the dispensing nozzle protrudes in the retaining position highest one third as far as in the dispensing position of the closure. As a result, both the height of the cap and the height of the entire closure is reduced. Particularly preferably, the dispensing nozzle is located completely in the retention position in the interior of the closure neck, so that the dispensing nozzle does not protrude from the closure neck in the retaining position.

The cap attachment thread and the attachment thread preferably have the same thread type and thread size. The cap attachment thread and the mounting thread complement each other as an external thread and as an internal thread.

Preferably, the cap attachment thread is formed as an external thread, while the fastening thread is formed as an internal thread. Consequently, the cap attachment thread can be formed directly on the circumference of the closure.

A basic body of the closure cap preferably has the shape of a hollow cylinder closed on one side. The fastening thread is formed on the inside of the cylinder jacket of the hollow cylindrical shape.

The closure cap preferably also has a holding neck, which has the shape of a hollow cylinder closed on one side. The holding pipe is arranged coaxially with the hollow cylindrical shape of the basic body of the closure cap. The holding thread is preferably formed as an internal thread on the inside of the holding neck.

The hollow cylindrical shape of the basic body of the closure cap is preferably closed by a circular disk, which simultaneously forms the closure of the hollow cylindrical shape of the holding nozzle. The basic body of the closure cap and the holding stubs are preferably designed in one piece as an injection-molded part.

In a particular embodiment of the closure according to the invention, the holding thread is interrupted, so that segments of the holding thread are formed, which represent a backdrop that facilitate the imports and / or the removal of the holding elements in the holding thread or from the holding thread.

The segments of the holding thread each have a circumferential angle of preferably 90 degrees.

On the inside of the closure cap, a sealing nozzle is preferably further arranged, which protrudes into the dispensing nozzle and seals the dispensing nozzle against the closure cap when the closure cap is screwed onto the closure nozzle. The sealing nozzle is preferably arranged coaxially to the holding stub. Also in this embodiment, the dispensing nozzle is preferably elastic, so that a seal between the dispensing nozzle and the Abdichtstutzen is formed when the cap is screwed onto the closure.

The intermediate space between the closure nozzle and the outlet nozzle is preferably completely closed, for example, by the fact that the closure nozzle and the outlet nozzle are formed einstuckig and without opening in the intermediate space. But in the intermediate space may also be a Rückrückoffnung be present, which is preferably designed as a valve, so that the gap between the closure nozzle and the outlet port for the medium contained in Behaltnis remains closed.

The dispensing nozzle is preferably connected via a flexible rotating Trager with the closure. In particular, a basic body of the dispensing nozzle is connected via the flexible circulating support to a basic body of the closure nozzle. The circulating flexible support closes the space between the spigot and the dispensing nozzle, so that the medium can not pass through the space between the spigot and the dispensing nozzle at an output of the medium in the Behältnis through the dispensing nozzle. However, small openings may be present in the flexible circulating carrier, which ensure a return flow of the medium into the container to be closed. The flexibility of the circulating Tragers allows the axial displacement of the dispensing nozzle against the closure neck.

The flexible encircling carrier is preferably designed as a bellows. Alternatively, the flexible rotating carrier is in the form of a concentric formed voluminous annulus, wherein the carrier is attached at its outer periphery to a kreisringformigen rigid approach of the closure. The rigid approach to the spigot holds the carrier and defines its deformation during the displacement of the dispensing nozzle with respect to the closure. In this case, the displaceability can be made possible by the fact that the wad of the wearer is inverted.

The flexible encircling carrier, the connecting piece and the dispensing nozzle are preferably single-piece, in particular designed as an injection molded part.

The dispensing nozzle preferably has a beak-like extension on its outwardly directed opening for targeted dispensing of the medium.

The closure neck preferably further has a Behaltnisbefestigungsgewinde with which the closure piece is screwed onto the Behaltnis.

The closure according to the invention preferably consists of a plastic, wherein its components are manufactured as injection-molded parts. The closure according to the invention preferably consists of two one-piece components, the first one-piece component comprising the closure neck with the cap fastening thread and the outlet nozzle with the retaining elements, while the second one-piece component comprises the closure cap with the fastening thread and the retaining thread.

Further advantages, details and developments of the invention will become apparent from the following description of preferred embodiments of the invention, with reference to the drawings. Show it:

1 a first, preferred embodiment of the inventive closure;

2 one in 1 shown cap in Alerfindungsgeleinstellung;

3 a in 1 Shut-off shown with a discharge nozzle in isolation;

4 a closure with an outlet nozzle of a further preferred embodiment of the inventive closure; and

5 a further preferred embodiment of the inventive closure on a detergent bottle.

1 shows a first preferred embodiment of a closure according to the invention in a sectional view. The closure includes a closure 01 on which in the illustration shown a cap 02 is screwed, whereby the closure is shown in a closed state. The entire closure is rotationally symmetrical. The spigot 01 has on its inside a Behaltnisbefestigungsgewinde 03 on, with which the spigot 01 on an opening of a container to be closed (not shown) can be screwed. In many cases of application, the closure is 01 only once, namely screwed on the Behaltnis during manufacture to the spigot 01 to attach to Behaltnis. Therefore, it is not provided in many application cases that the closure 01 is again solved by the Behelfnis, what on the inside of the closure 01 several locks 04 are arranged, which screwing down the closure 01 prevent from the Behaltnis. On the outside of the filler neck 01 is a cap attachment thread 06 arranged on which the cap 02 with a fastening thread 07 can be screwed on.

Single-handed with the spigot 01 is an outlet 08 formed, which coaxial with the closure 01 is arranged. The discharge nozzle 08 is from one on the circumference of the output nozzle 08 trained kreisringformigen carrier 09 held. The kreisringformige carrier 09 is flexible, so that the circular ring shape can be gewölbt. The kreisringformige carrier 09 is on a kreisringformigen rigid approach 11 at the stopper 01 attached. Due to the flexibility of the ring-shaped carrier 09 can the dispensing nozzle 08 in its axis, which at the same time the axis of the closure 01 is to be moved. At the same time, the turmoil of the ring-shaped carrier changes 09 , In the illustration shown is the output port 08 in a retaining position, in which it as far as possible into the interior of the closure 01 protrudes. In the rest position, the dispensing nozzle protrudes 08 barely over the inside of the cap 01 out. By a shift, the output port 08 from the spigot 01 be pulled out, with the Wolbung the kreisringformigen carrier 09 unchanged. This allows the outlet nozzle 08 in an issue position (shown in FIG 4 ), in which the dispensing nozzle 08 Completely out of the spigot 01 protrudes. In the issue position is also the kreisringformige carrier 09 outside the interior of the filler neck 01 ,

On the inside of the cap 02 there is a holding pipe 12 which is coaxial with the fastening thread 07 the cap 02 is arranged. On the inside of the holding nozzle 12 there is a holding thread 13 , which in contrast to the fastening thread 07 is executed as left-hand thread. The thread profile of the retaining thread 13 is not continuous, so that the retaining thread 13 consists of individual segments, which form a backdrop. On the outside of the dispensing nozzle 08 There are two retaining cams 14 , which are diametrically on the output neck 08 against about standing. The retaining cams 14 grab in the retaining thread 13 a, so that in the shown closed state of the closure of the dispensing nozzle 08 opposite the retaining thread 13 in the holding pipe 12 the cap 02 is screwed. The retaining cams 14 show on their cap 02 facing side on a abgeschragte surface, whereby a locking of the retaining cams 14 in the retaining thread 13 is relieved.

The cap 02 has on its inside still a Abdichtstutzen 16 which is coaxial with the holding stub 12 is arranged and in the closed position of the closure shown in the interior of the dispensing nozzle 08 protrudes and thereby the discharge nozzle 08 closes. For a tight closure of the output nozzle 08 to ensure is on the circumference of Abdichtstutzens 16 a circumferential sealing lip 17 ,

2 shows the in 1 shown cap 02 with the fastening thread 07 , the holding pipe 12 and the sealing nozzle 16 in isolation in a cross-sectional view. There are in particular segments of the holding thread 13 recognizable.

3 shows the in 1 shown closure 01 with the dispensing nozzle 08 and the kreisringformigen carrier 09 in isolation.

4 shows the spigot 01 with the dispensing nozzle 08 a modified embodiment of the inventive closure in a perspective view. The discharge nozzle 08 is in the illustrated position in the dispensing position, so that he as far as possible from the spigot 01 protrudes. This modified embodiment has two pairs of retaining cams 14 , The two pairs of holding cams 14 are diametrically on the outlet 08 across from. The retaining cams 14 are both in the direction of the cap 02 (shown in 1 ) as well as in the direction of screwing inclined to the imports into the holding thread 13 (shown in 1 ) to facilitate. Another variation is a beak-like extension 18 , which on one side at an open end of the output nozzle 08 is designed to facilitate the targeted output of the medium from the closure.

5 shows a further preferred embodiment of the closure according to the invention in a perspective view, this closure already on a detergent bottle 21 is applied. By means of the closure according to the invention, the herausfuhrbare output nozzle 08 for a simple and safe dispensing of the detergent available, without increasing the height of the detergent bottle including the closure hereby or for this a time-consuming shifting of the dispensing nozzle 08 when opening and closing the shutter is required.

LIST OF REFERENCE NUMBERS

01

snap-brackets

02

cap

03

Behaltnisbefestigungsgewinde

04

barrier

05

06

Cap fastening thread

07

mounting thread

08

delivery nozzle

09

ring-shaped carrier

10

11

approach

12

holding stubs

13

retaining thread

14

Cams, retaining elements

15

16

Abdichtstutzen

17

sealing lip

18

beak-like extension

19

20

21

Detergent bottle, container

Claims (10)

Closure for closing a container ( 21 ), comprising: - one at an opening of the container ( 21 ) attachable closure ( 01 ) with a cap attachment thread ( 06 ); - a cap ( 02 ) for closing the closure ( 01 ), comprising a fastening thread ( 07 ), with which the cap ( 02 ) on the cap attachment thread ( 06 ) of the closure ( 01 ) and can be screwed down therefrom, whereby the closure cap ( 02 ) further to the interior of the closure ( 01 ) aligned retaining thread ( 13 ); and - one in the closure ( 01 ) arranged outlet ( 08 ) for the targeted issue of one in Behaltnis ( 21 ) medium, which opposite the plug ( 01 ) is displaceable from a jam position to an output position and vice versa, the dispensing nozzle ( 08 ) in the retaining position screwing the cap ( 02 ) on the spigot ( 01 ) and in the dispensing position from the closure ( 01 protruding in order to facilitate the targeted output of the medium, wherein the output port ( 08 ) retaining elements ( 14 ) having; the dispensing nozzle ( 08 ) with the retaining elements ( 14 ) in the retaining thread ( 13 ) of the cap ( 02 ) is screwable; and wherein the pitch of the retaining thread ( 13 ) of the pitch of the fastening thread ( 07 ), so when screwing down the cap ( 02 ) from the closure ( 01 ) the dispensing nozzle ( 08 ) from the spigot ( 01 ) is pulled out. Closure according to claim 1, characterized in that the holding elements ( 14 ) in the retaining thread ( 13 ) are latched in order to prevent imports of the outlet ( 08 ) in the retaining thread ( 13 ) to facilitate. Closure according to claim 1 or 2, characterized in that the retaining thread ( 13 ) a smaller pitch than the fastening thread ( 07 ) owns. Closure according to one of claims 1 to 3, characterized in that the pitch of the retaining thread ( 13 ) negative with respect to the pitch of the fastening thread ( 07 ) is trained. Closure according to one of claims 1 to 4, characterized in that the holding elements by cams ( 14 ) are formed, which on the outer circumference of the output nozzle ( 08 ) are arranged. Closure according to claim 5, characterized in that the cams ( 14 ) in the direction of the cap ( 02 ) are canted to the engagement of the cam ( 14 ) in the retaining thread ( 13 ) to facilitate. Closure according to one of claims 1 to 6, characterized in that the dispensing nozzle ( 08 ) is elastically formed and has an internal tension, whereby it remains in the absence of forces only in the retained position and in the dispensing position. Closure according to one of claims 1 to 7, characterized in that the retaining thread ( 13 ) is formed interrupted, wherein segments of the retaining thread ( 13 ) form a backdrop to facilitate imports and / or removal of the holding elements ( 14 ) in the retaining thread ( 13 ) or from the holding thread ( 13 ) to facilitate. Closure according to one of claims 1 to 8, characterized in that the dispensing nozzle ( 08 ) via a flexible circulating carrier ( 09 ) with the connecting piece ( 01 ), wherein the space between the closure ( 01 ) and the dispensing nozzle ( 08 ) by the flexible circulating carrier ( 09 ) is closed. Closure according to claim 9, characterized in that the flexible circulating support ( 09 ) is designed as a bellows.

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