JP2020512239A - Container closure device - Google Patents

Abstract

The invention relates to a closure device 1 for a container opening 3, which comprises a lid element 4 for closing the container opening 3, a chamber 6 assigned to the lid element 4 and an inner housing 5. 6 and the inner housing 5 further have corresponding closing means and opening means which rotate the closing means with respect to the inner housing in which the discharge holes 8 assigned to the chamber 6 as opening means are connected to the lid element 4. The movement causes them to interact with each other so that they can be opened to release the medium contained in the chamber 6 into the container 2. The present invention aims at providing a closure device which is economical to manufacture and which allows the chamber to be efficiently emptied when the lid element is removed. To achieve this, the first solution presented is a closure pin 7 in which the closure means is rigidly connected to the chamber 6 and has a vertical extension relative to the axis of rotation, and the closure means That is, the vertical extending portion forms a different area of the flow area and the closed area. [Selection diagram] Fig. 13

Description

  The invention firstly relates to a closure device for a container comprising a container opening, the closure device comprising a lid element for closing the container opening, a chamber provided in the lid element, and an inner housing, And the chamber and the inner housing further have a closing means and an opening means, which are provided in the chamber as opening means by rotationally moving the closing means connected to the lid element with respect to the inner housing. Are openable so that the media contained in the chamber correspond to and interact with each other so that the media can exit into the container.

  Closure devices of the type described above are known from the prior art. These closure devices are used to close the container while at the same time providing a chamber for separately containing a liquid or powder medium. The medium is, for example, the essence of tea. As a result, these media do not come into contact with and / or mix the contents of the container immediately when the container is filled, for example water, but only when the closure is removed from the container. This is usually when the contents of the container should be consumed.

  For example, US Pat. No. 6,037,049 relates to a closure device of the type described above, which when the container closed by this closure device is opened releases the replenishment liquid present in the chamber into the container. The closure device has a lid element, a chamber and an inner housing. The inner housing has a discharge hole in which a plug element connected to the inner housing engages in a sealing manner. The lid element and the inner housing are connected to each other by means of a helical thread, the lid element from the closed position in which the plug element closes the discharge hole of the chamber, from which the plug element retracts at least partially from the discharge hole. The position can be raised relative to the inner housing, thereby providing a passage from the chamber to the main liquid space of the container. In this way, the medium contained in the chamber can exit into the container where it is mixed with the medium present in the container.

International Publication No. 2007/129116

  Based on the above-mentioned prior art, the object of the invention is to disclose a closure device which can be manufactured cost-effectively while at the same time being able to effectively empty the chamber during the removal of the lid element.

  According to a first solution, the invention provides that the closure means is a closure pin which is rigidly connected to the chamber and has a vertical extension which is associated with the axis of rotation, and the closure means is It is suggested that different regions, that is, a distribution region and a closed region, are formed over the extending portion.

  The closure means is preferably a closure pin. In this case, the closed region can be formed in the form of a cylindrical member having an outer diameter corresponding to or slightly larger than the inner diameter of the opening means, for example the discharge hole. If the opening means consist of an elastic and flexible material in this region, in particular a thermoplastic elastomer, the latter is reasonably possible.

  On the other hand, the flow region can be a tapered region that extends around the entire circumference of the closure or part of it. A gap space is formed when the tapered region projects upwards from the opening means by corresponding rotation of the lid element. The mass contained in the chamber, in particular the liquid, can then flow out of the discharge hole through the interstitial space. In this case, the distribution area can also extend wholly or partly within the opening means.

  The above mentioned object is further achieved by a closing device in which the closing means is a closing pin and the closing pin is connected to the chamber by a snap lock member. The construction of the closure means in the form of a closure pin snap-locked to the chamber makes it possible to make a closure pin of a different material than the chamber. The chamber may further be initially formed with an opening on the side of the closure means, which facilitates its production, eg the injection molding process. A snap lock connection between the closure means and the chamber can also be used at the same time to create a seal in the snap lock area.

  With regard to the first solution mentioned above, alternatively, in particular the closure means can also be formed in the form of a closure pin rigidly connected to the chamber.

  The discharge holes may optionally be referred to as closed holes.

  The closing means, in this case in particular the closing pin, are arranged on the chamber, whereas the opening means, in this case in particular the closing or discharge hole, are preferably formed on the inner housing. In the closed position of the closure device, the closing pin engages or covers the closing hole so that the closing pin closes the closing hole. The closure pin is removed from the closure hole by opening the closure device, i.e. by moving the lid element away from the container and thereby simultaneously displacing the chamber relative to the inner housing. This allows the medium contained in the chamber to flow through the closure hole and into the container. During manufacture of the closure device, the chamber is advantageously inserted concentrically into the inner housing. In that case, at the same time, the closing pin is displaced into the position for closing the closing hole. Since the closure pin is rigidly connected to the chamber, its position and orientation with respect to the chamber are also maintained during assembly of the closure device so that the closure pin automatically engages the closure hole due to its position and orientation on the chamber. You will come into contact.

  According to another solution of the invention, the lid element is to a limited extent relative to the chamber in the direction of removal of the lid element and to the chamber in the first movement section of the lid element during removal of the lid element. It is provided that it is movable and is operatively associated with the chamber in the second working section. In this way, the lid element can be raised to some extent without the chambers moving together.

  The lid element is in particular movable in rotation with respect to the chamber in the first working section.

  Furthermore, it is proposed that in the first operating section the lid element is preferably moved vertically with respect to the chamber. Thus, the chamber remains in its originally assigned position with respect to the vertical line, while the lid element is raised, for example by loosening the screw.

  According to another technical idea of the invention, it is proposed that the opening means comprises an opening member, which opening member can be moved relative to the chamber during the opening process and forms two circumferential sealing areas. It In that case, the sealing areas are arranged concentrically with each other in a direction perpendicular to the direction of movement of the opening means with respect to the chamber during the opening process.

  The opening means can each interact with the chamber on two sealing areas arranged concentrically to each other. In this regard, it is possible to interact with a closure pin that is rigidly connected to the chamber, and also to interact with a receiving opening on the chamber for the opening means, which is formed to surround the closure pin. can do.

  The medium discharged from the chamber is preferably under pressure. If the medium is a liquid, for this purpose a corresponding compressed gas region can be provided above the liquid level during the filling process.

  Reliable seals, and seals that are advantageously controlled with respect to manufacturing technology, are of particular importance in connection with such pressurized media.

  Since two concentric sealing regions are formed, the two peripheral regions, preferably the cylindrical regions, can be properly enclosed in a sealing manner. This concerns in particular the cylindrical inner surface and the cylindrical outer surface of the corresponding areas of the chamber, which are enclosed in a sealing manner by the opening means.

  The invention further relates to a closure device for closing a container opening of a container, in particular a beverage container, which closure device has a lid element, a chamber arranged in the lid element and an inner housing, which comprises: , Corresponding to and interacting with each other such that the movement of the lid element relative to the inner housing allows the medium contained in the chamber to be discharged into the container.

  Another solution for further improving the closure device of the type in question is that the closure means is a closure pin connected to the chamber by a snap lock member and the lid element is moved relative to the inner housing. Presents that the closure pin can be removed from the closure opening of the inner housing forming the opening means.

  In this possible embodiment, the closure pin can be made separately from the chamber and can therefore initially be supplied in the form of a loose member during the assembly of the closure device. This is advantageous in terms of manufacturing, especially in terms of material selection. Thus, in a simple manner, the closure pin can be made of a different material than the chamber that finally holds the closure pin, in particular a plastic material.

  The closure pin is preferably snap-locked to the chamber, for example by using a snap-lock member or a snap-lock part provided for this purpose. Furthermore, a welded connection or optionally even an adhesive connection can be used to hold the closure pin on the chamber.

  The invention further relates to a closure device for a container comprising a container opening, the closure device having a lid element for closing the container opening, a chamber arranged in the lid element, and an inner housing, The chamber and the inner housing have a closing means and an opening means, which are capable of opening the discharge holes provided in the chamber by moving the lid element with respect to the inner housing, the medium contained in the chamber. Correspond to and interact with each other so that they exit the container, and the lid element further comprises threads for unscrewing the closure device from the container.

  Closure devices of this type are also known from the prior art mentioned at the outset.

  In order to develop another closure device of this type, a possible solution of the invention is that the inner housing has a first outlet recess, which during the process of unscrewing, the first outlet recess is inside the chamber. It is presented that it is aligned with the second outlet recess formed on the chamber only by relative rotation with the housing.

  According to the present invention, the medium contained in the chamber can exit into the container through the discharge hole only when the inner housing and the outlet recess of the chamber move to corresponding positions. This can be achieved only by rotating the lid element with respect to the inner housing. This rotation causes one of the outlet recesses to move to a position corresponding to the other outlet recess. It is also possible to superimpose the axially sliding movement on the rotational movement.

  The movement of the lid element, in particular its rotation, is preferably limited by the stopper.

  The discharge path between the chamber and the discharge hole is only created by displacing one outlet recess into a corresponding arrangement with the other outlet recess.

  In a possible embodiment, the closure device operates functionally like a rotary slide valve.

  According to the inventive idea, in this configuration the chamber has a (second) outlet recess, which opens the discharge path by means of a relative axial displacement between the chamber and the inner housing.

  In this case, the closure device operates functionally like a slide valve. The outlet recess of the chamber is axially displaced by a displacement of the lid element with respect to the inner housing, in particular by a rotational displacement of the lid element, into a position in which a flow channel from the chamber into the interior of the container is opened.

  The outlet recesses can be formed in the form of channels in each component or, alternatively, in the form of groove-shaped recesses in the region of the interacting surfaces of the inner housing and the chamber.

  In another embodiment, the chamber-side (second) outlet recess can be formed in the region of the chamber-side closing means and the (first) outlet recess can be correspondingly formed on the side of the inner housing. Can be selectively formed in the area of the opening means.

  The closure pin can be integrally formed with the chamber. In this regard, it is particularly advantageous to make the chamber containing the closure pin by means of a plastic injection molding process, whereby a separate manufacturing step for connecting the closure pin to the chamber is not necessary. The injection molding process is particularly advantageous in this regard. This is because the chamber is usually made of polybutene terephthalate (PBT) or plastic such as polypropylene (PP) or polyethylene (PE). The integral construction of the closure pin on the chamber maintains a constant position and orientation of the closure pin with respect to the chamber, thus ensuring that the closure pin reaches the position of closing the closure hole during the connection of the chamber to the inner housing. However, in addition to a one-piece construction, it is basically possible to arrange the closure pin on the chamber in different ways. For example, the closure pin can be joined or welded to the chamber. The closure pin or the part carrying the closure pin can also be snapped into the chamber, whereby an operation forms an inseparable snap-lock connection. It is important to make a solid connection between the chamber and the closure pin so that the closure pin cannot be separated from the chamber during insertion into the closure device.

  Furthermore, it is proposed that the closure pin has a freely projecting closed end that is inserted into the closure hole. For example, a closure pin can be arranged on the chamber wall in the form of an L-shaped web, whereby the free closed end faces the closure hole of the inner housing. If the chamber is formed cylindrically, the end region of the closure pin carrying the closed end is located on the longitudinal axis of the chamber. Different configurations of the closure pin are basically conceivable. For example, a plurality of webs arranged in a star-shaped manner can extend radially from the inner wall of the chamber to the longitudinal axis. The webs then carry the end regions with closed ends in a star-shaped manner. In this case, the closure pin is advantageously arranged in the part of the chamber which is tapered in the form of a discharge region with respect to the rest of the chamber, whereby the chamber is smaller in the region of the closure pin. Have a diameter.

  Furthermore, it is advantageous for the closed end to have a diameter which substantially corresponds to the inner diameter of the closing hole. In this case, the outer diameter of the closed end and the inner diameter of the closed hole are correspondingly formed, so that the closed end can be inserted into the closed hole, with a sealing element interposed if applicable. . As a result, the closure pin is inserted in the closure hole in the form of a plug. In another example of closing the closure hole from the outside without the closure end being inserted into the closure hole, it is advantageous for the closure end to have a correspondingly larger diameter than the closure hole.

  It is proposed that a sealing element is provided on the closure hole and / or the closure pin for closing the closure hole in a liquid-tight manner with the closure pin. A sealing element for connecting the closing end or the closing pin and the closing hole in a liquid-tight manner is advantageous if the closing end of the closing pin is arranged in front of the closing hole. It is likewise advantageous if the closed end projects into or extends within the obturator foramen, and optionally if it projects below the obturator foramen. The sealing element can preferably be provided in the form of a sealing rubber or the like. The sealing element can be arranged either on the edge region of the inner housing defining the closing hole, on the closed end of the closing pin or on the closing hole and the closing pin.

  The sealing element is advantageously provided on the inner wall of the closure hole. In that case, in particular, the inner wall is coated with a sealing material. In this regard, it is proposed to insert the closed end of the closing pin into the closing hole with the sealing element / coating interposed. By coating the inner wall of the closing hole with a sealing material, it is possible to provide a sealing element whose position is always maintained on the closing hole, which contributes to an optimum sealing of the closing hole.

  Furthermore, it is proposed that the obturator is part of the flow channel, the length of the flow channel being at least 5 times its diameter and not more than 20 times its diameter. Therefore, the medium exiting the chamber must flow through the flow channels to reach the container. In this way, the medium is not ejected from the chamber suddenly, but in the form of a relatively thin jet over a period of time. This in particular promotes a good miscibility between the medium present in the container and the medium flowing out of the chamber. In this case, the closed end of the closure pin does not have to be inserted into the flow channel over its entire length, but rather, for example, only a few mm long in the region of the closure hole is inserted into the flow channel. Good. This simplifies the process of joining the chamber with the inner housing. This is because the closed end or pin does not have to be inserted into the flow channel over a larger length, in particular the entire length of the closure pin and / or the flow channel. is there.

  Furthermore, it is possible that the chamber has an opening on the container side and a snap lock member having a U-shaped cross section surrounds the opening edge of the opening. The opening edge of the opening is preferably constructed by snap-engaging a snap-lock member having a closure member thereon. The snap lock cannot be separated by operation.

  Furthermore, the (second) outlet recess of the chamber can form the lowest region of the discharge path in the open state of the closure device. Further alternatively, the closure means with the outlet recess can preferably also project freely into the interior of the container, i.e. not directly surrounded by the member of the inner housing, the free end of which may be the closure device. In the open position facing away from the chamber.

  In another embodiment, the discharge holes on the inner housing may form a sealing lip that abuts the closure means of the chamber. If the closing means has a cylindrical shape, this sealing lip is preferably provided circumferentially and interacts with the opposite outer surface of the closing means in the closed position of the closing device and in its open state.

  The medium is preferably released under pressure when the closure device is opened. The sealing lip, which abuts the closing means, is lifted to the open position by the medium which is about to emerge. After the chamber has been emptied and the pressure applied to the sealing lip has dropped, the elasticity of the sealing lip again abuts the outer surface of the closing means. The mechanism and effect of the seal lip is to prevent uncontrolled discharge (dripping) of media residues.

  In another embodiment, the chamber has a chamber bottom, in which case the chamber bottom can transition to a channel having a discharge hole. In such an embodiment, the channel bottom is preferably axially spaced from the region of the chamber bottom. This makes it possible to obtain an inclination between the chamber bottom and the channel, in particular the channel bottom. In a possible embodiment, where applicable, this slope is formed exclusively by the channel walls which define the channel bottom at the transition to the chamber bottom.

  The channels can be closed in a ring manner, in particular in a ring manner with respect to the axis of rotation. Where applicable, the channel thereby completely encloses the chamber bottom, while at the same time selectively defining the chamber bottom radially outward.

  Emission holes can be formed in the channel bottom and / or channel sidewalls. In a preferred embodiment, the lowest possible arrangement of the emission holes is achieved when the emission holes are respectively arranged or formed in the channel bottom. In this case, the central axis of the discharge hole can extend substantially perpendicular to the chamber bottom or to the bottom surface arranged laterally to the axis of rotation, respectively.

  The discharge flow of the medium from the chamber is directed radially outward, starting from the channel, when the discharge holes are respectively arranged or formed in the region of the channel sidewalls. Such emission holes are also preferably formed within the axial height of the channel and optionally at least abutting the channel bottom surface.

  Further, the emission holes can be arranged on the channel bottom and the channel side walls by selectively providing the emission holes on the channel bottom and the channel side walls. Furthermore, the emission holes can—in cross section—be provided only in the transition region from the channel bottom to the channel side wall.

  The plurality of emission holes can also be formed in the circumferential direction of the channel, i.e. only in the region of the channel bottom or only in the region of the channel side wall, but alternatively instead of this, the channel bottom and It can also be formed in the region of the channel sidewall.

  In a possible embodiment, the chamber bottom can have a layer of soft plastic for interacting with the closure means, in particular in a sealing manner. The closure means preferably interacts with the soft plastic layer, especially in the closed position. In another possible preferred embodiment, the soft plastic layer extends in the region of the channel, including in particular the region of the emission holes.

  A soft plastic layer may further extend over the channel bottom and / or Chanel sidewalls.

  In this case, the emission holes can be selectively formed only in the soft plastic layer. In this case, therefore, the soft plastic layer extends in the region of the discharge hole and preferably thereby completely forms the wall of the discharge hole.

  The closure means can penetrate into the discharge hole in a pin-shaped manner for sealingly closing the discharge hole. In another embodiment, the closure means act like a slide.

  For example, a thermoplastic elastomer can be used to make the soft plastic layer.

FIG. 1 shows a vertical cross section of a closure device according to a first embodiment. 2 shows the closure device of FIG. 1 arranged in a container in the closed position. FIG. 3 shows an enlarged detail of region III of FIG. FIG. 4 shows a view corresponding to FIG. 2 in the release position. FIG. 5 shows an enlarged detail of region V of FIG. FIG. 6 is a diagram corresponding to FIG. 2 and shows a second embodiment. FIG. 7 shows an enlarged detail of region VII of FIG. FIG. 8 shows the closure device according to the second embodiment in the release position. FIG. 9 shows enlarged details of region IX of FIG. FIG. 10 is a view corresponding to FIG. 9 and shows still another embodiment. FIG. 11 is a view corresponding to FIG. 2 and shows still another embodiment. FIG. 12 shows an enlarged detail of region XII of FIG. FIG. 13 shows the release position of yet another embodiment. FIG. 14 shows an enlarged detail of region XIV of FIG. FIG. 15 shows a portion substantially corresponding to FIG. 11 and relates to yet another embodiment. FIG. 16 shows a cross section taken along line XVI-XVI of FIG. FIG. 17 shows an enlarged detail of area XVII of FIG. FIG. 18 is a view corresponding to FIG. 13 and relates to the embodiment of FIGS. 15 to 17. FIG. 19 shows an enlarged detail of the area XIX of FIG. 20 shows a cross section of a closure device according to yet another embodiment, which cross section corresponds substantially to FIG. 2 and relates to a closed position. FIG. 21 shows an enlarged detail of area XXIII of FIG. FIG. 22 is a cross-section corresponding to FIG. 20, but for the ejection position. 23 shows an enlarged view corresponding to FIG. 21 and relates to the area XXIII in FIG.

Hereinafter, the present invention will be described in more detail with reference to embodiments.
A closure device 1 having a chamber 6 with a lower opening is shown and described below. Opening means are provided for the chamber opening that allow the chamber 6 to be emptied. In this exemplary embodiment, the opening means consist in particular of an opening member formed in particular by the sealing element 10. This opening member has two circumferential sealing areas, ie preferably a sealing area formed on the outer peripheral surface of the opening means, which interacts with the inner surface of the chamber 6 and which is relatively inwardly spaced and this implementation. In form it is another sealing area which interacts with the closure pin 7 forming the closure means V. The two sealing areas mentioned above are arranged concentrically to one another in a direction extending perpendicularly to the chamber 6—a direction with respect to the moving direction R of the opening means during the opening process.

  FIG. 2 shows the upper part of the container 2, which in this case is a beverage bottle. On the container opening 3 the closure device 1 according to the first embodiment is arranged. The closure device 1 is in a position in which the closure device 1 closes the container opening 3 in a liquid-tight manner with respect to the container 2. The container opening 3 is closed by screwing the closing device 1 into the container 2 in a general-purpose manner. In this state, the container 2 can be stored for a long period of time, during which the contents are prevented from leaving the container 2. The container opening 3 is finally completely exposed by universally unscrewing the closure device 1 from the container 2 in order to open it.

  The closure device 1 comprises a lid element 4, a chamber 6 arranged in the lid element 4 and an inner housing 5. In the non-limiting embodiment shown, the lid element 4 is a plastic lid, for example polypropylene (PP) or polyethylene (PE).

  1 to 5 show an embodiment of a closure device 1 in which the chamber 6 is in the form of a separate piece, for example made in a plastic injection blow molding process. However, the chamber may also be manufactured by using a plastic injection blow stretch molding process, in which case the heated preform may be subjected to the normal injection blow molding process (extrusion blow molding process) before or at the same time as the blow molding process. In addition to the above), the hollow body of the thermoplastic material can be prepared by stretching in the longitudinal direction, for example, by using a stretching rod extending through the preform hole. For example, the resulting expansion coefficient (minimum opening diameter: maximum outer diameter) can be 1:10 in this case.

  The chamber 6 thus produced is subsequently snapped onto the lid element 4, i.e. snap-locked onto it.

  To this end, a perimeter collar 19 can be provided on the outer surface of the wall of the chamber 6, as shown. This collar 19 is then used for interacting with the corresponding snap-lock projection 20 of the lid element 4 in an interlocking manner.

  For example, a flat region 21 can be provided around the circumference of the chamber wall and in the region corresponding to the wall of the lid element, in order to transmit a helical torque during the threaded operation of the lid element 4. The chamber 6 is held non-rotatably on the lid element 4. FIG. 2 shows an exemplary longitudinal section through the flat area of the closure device 1. Unlike the other longitudinal sections in FIGS. 1 and 4, the longitudinal section of FIG. 2 is shown rotated about 90 ° about the longitudinal axis.

  The chamber 6 thus has a one-piece construction with respect to the surrounding chamber wall and the chamber ceiling and the discharge nozzle 13 which is located adjacent the chamber wall in the longitudinal direction and has an opening on the container side.

  In this embodiment, the closure means V or the closure pin 7 are respectively snap-locked to the chamber 6 and in particular to the discharge nozzle 13. This is done using the snap lock member 22. In the longitudinal section, the snap-lock member 22 is formed substantially U-shaped with a circumferential snap-lock collar 23 surrounding the free end region of the discharge nozzle 13. In this interlocking position, this snap-lock collar 23 engages the rear side of the radial step formed corresponding to the discharge nozzle 13 along the opening edge.

  The snap lock member 22 forms an inner peripheral wall, the inner side of which is supported on the discharge nozzle 13. The closing pin 7 is integrally formed on this inner peripheral wall by a cross web arrangement, for example.

  The inner housing 5 has a pot-like configuration and comprises a peripheral pot wall and a collar which is supported on the container edge surrounding the container opening 3.

  A peripheral sealing lip 24 is integrally formed on the lower surface of the collar of the inner housing. In the assigned position, this sealing lip 24 interacts with the container wall which surrounds the container opening 3.

  In this case, the inner housing 5 further forms a channel dome 14 on the pot bottom side. This channel dome 14 carries in its center a pin-shaped structure with a flow channel 11. The pin-shaped structure comprising this flow channel 11 can be connected to the channel dome 14 by means of a cross web-like connection, not shown in detail.

  In the illustrated exemplary embodiment, the sealing element 10 extends substantially towards the chamber 6, but at least partly, in particular by the spray-coating of the material of the sealing element 10 on the connection areas mentioned above. It also extends below the dome ceiling.

  According to FIG. 1, for example, the sealing element 10 can have, on the side facing the chamber 6, a cross section that tapers in a funnel-like shape from the radially outer side towards the center.

  The outer diameter of the sealing element 10 corresponds to that of the channel dome 14 and is further adapted to the empty inner diameter of the snap lock member 22 carrying the closure pin 7. Thereby, a sealing effect between the sealing element 10 and the inner wall of the chamber 6 or the snap-lock member 22 is respectively obtained in the operating position.

  Furthermore, the snap lock member 22 can also be retained on the chamber 6 by a welded connection.

  In this case, the inner housing 5 is further connected to the chamber wall by a screw thread 15.

  In the closed position of FIG. 2, the closure pin 7 is inserted into the closure or discharge hole 8 for closing the chamber 6 tightly.

   The axial displacement of the closure pin 7 with respect to the inner housing 5 is realized by the lid element 4 and thus the chamber 6. At that time, the closing pin 7 opens the closing hole 8 for discharging the contained medium from the chamber 6 into the container interior.

  The inner housing 5 is fixed against rotation (initially) by a frictional connection between the sealing lip 24 and the container wall.

  6 to 9 show another embodiment. In this case, the chamber 6, in particular the circumferential chamber wall and the chamber ceiling, is preferably formed in the form of an insert which is spray-coated to form the lid element 4. The part of the chamber 6 which substantially forms the discharge nozzle 13 and which in this embodiment is integrally formed with the closure pin 7, can preferably be made separately and, finally, is welded to the insert. The chamber 6 is formed by being connected.

  The discharge nozzle 13 has a section which tapers in a funnel-shaped manner and leads to a cylindrical section 25 which carries a closure pin 7 at its end. In this case, the closure pin 7 is also held on the cylindrical part 25 by means of a cross web arrangement, the closure pin 7 projecting axially beyond the free end of the cylindrical part 25.

  The inner housing side sealing element 10 has a pot-shaped configuration with circumferential sealing walls and abuts the cylindrical part of the discharge nozzle 13 on the outer wall.

  The closing hole 8 is formed at the bottom of the seal pot. The flow channel 11 is substantially formed by the sealing element 10.

  Outside and below the wall of the bottom of the sealing pot, a pot-shaped sealing element 10 is circumferentially surrounded by a part of an inner housing having a corresponding pot-like configuration.

  In the closed position shown in FIGS. 6 and 7, the seal is formed in substantially two concentric regions. One seal is formed between the cylindrical wall of the discharge nozzle 13 and the circumferential seal pot wall, and the other seal is formed in the region of the flow channel 11, where the sealing element 10 is concerned. The circumferential wall abuts the corresponding outer wall of the closure pin 7.

  The closure pin 7 has a (second) outlet recess 26. This outlet recess is formed by a longitudinal groove open towards the circumferential wall surface of the closure pin 7 and towards the free end of the closure pin 7.

  In the illustrated embodiment, the closure pin 7 is in a fully seated closed position in the flow channel 11. In this case, the outlet recess 26 extends over an axial length which is shorter than the axial length of the sealing area between the closure pin 7 and the sealing element 10. For example, the outlet recess 26 extends over half the axial length of the closure pin 7.

  In the drawing, only one outlet recess 26 in the form of a groove is shown. However, the arrangement of a plurality of grooves or the like distributed in the circumferential direction is also conceivable. In addition, reducing the diameter in the circumferential direction can be used to form the outlet recess 26.

  Due to the axial displacement of the chamber 6 with respect to the inner housing 5, the closing pin 7 can also be raised in this case to the position shown in FIG. Interacting in a sealing manner, exiting the flow channel 11, and the outlet recess 26 is moved to a position that opens the flow channel between the interior of the chamber and the flow channel 11. The outlet recess 26 is raised beyond the face of the outlet opening.

  According to FIG. 9, it is sufficient in this case for the closure pin 7 not to be completely lifted from the sealing element 10. However, as shown in FIG. 10, a solution of raising completely is also possible.

  If the closure pin 7 extends axially downwards beyond the inner housing 5, this outlet recess 26 can also form the lowest region of the discharge path in the discharge state according to FIG. 9 (FIG. 9). See dashed line).

   In this embodiment, the closure pin 7 and the inner housing 5 or the sealing element 10 each interact in the form of a slide valve.

  11 to 14 show an embodiment in which the closure pin 7 and the sealing element 10 interact in the form of a rotary slide valve.

  Based on the basic arrangement and configuration of the closure device 1 according to the exemplary embodiment described above, in this case the inner housing 5 is preferably not connected to the chamber 6 by means of a screw thread, but preferably in a predefined angular range. They are connected by a snap-lock connection which allows the chamber 6 to rotate with respect to the inner housing 5.

  In this embodiment, the closure pin 7 is permanently seated on the sealing element 10 and therefore does not displace axially with respect to the sealing element 10.

  In this case, the displacement of the closing pin 7 with respect to the sealing element 10 preferably takes place only in the circumferential direction, the displacement being limited by the stopper to an angular range of about 180 °.

  Similar to the exemplary embodiment described above, the closure pin 7 further comprises in this case a (second) outlet recess 26 in the form of an axially extending groove on the side wall. In the axially perpendicular cross section, the grooves are arranged approximately 180 ° apart from the first outlet recess 27 on the inner housing side in the closed position of FIGS. This first outlet recess 27 is also preferably formed in the form of a groove, in particular in the form of a groove extending axially and arranged on the side wall of the flow channel 11 formed by the sealing element 10. ing. The outlet recess 27 extends more than half the length of the flow channel 11 in the longitudinal direction, starting from the closing hole 8 or starting from the opening surface facing the chamber 6.

  Therefore, as a result, a partial increase in diameter of the cross section of the flow channel occurs in the circumferential direction of the flow channel in this region.

  Due to the rotational displacement, the closing pin 7 seated on the sealing element 10 is turned into the discharge position, where the outlet recess 26 and the outlet recess 27 are moved into the corresponding arrangement shown in FIG. Thereby, by their axial overlapping of their groove-shaped outlet recesses, they form a flow channel for discharging the medium present in the chamber 6.

  In this embodiment, during the first approximately 180 ° rotation path, the inner housing 5 is likewise already raised axially with respect to the container opening 3, whereby the discharge position is reached. The sealing lip 24 has an appropriate axial length for producing a holding torque large enough so as not to rotate the inner housing 5 in spite of this axial displacement during the rotational displacement from the closed position to the discharge position.

  The circumferential sealing lip 29 is integrally formed on the inner housing 5 in the area of the discharge hole 28 or is formed directly by the sealing element 10. This sealing lip 29 acts on the circumferential surface of the area in which the closure pin 7 is provided. That is, it works both in the closed position and in the open position. In this way, the flow channel 11 is sealed in the discharge position of the closure device 1, which also corresponds to the removal position of the lid. After the medium has been discharged from the chamber 6 into the container 2, the residual medium, which may still be present in the chamber 6, cannot escape from the lid that has been removed and placed on the work surface. This avoids contamination of the work surface and the environment.

  After the medium has been discharged at the discharge position, the pressure in the chamber 6 is no longer above atmospheric pressure, so such a lip-shaped seal is sufficient to prevent possible residue dripping.

  The closure device 1 can be filled universally: filling-preassembly-pressurization-assembly.

  Furthermore, the inner housing 5 can also be snap-locked to the chamber 6 in the open valve position after the chamber 6 has been filled. In that case, the chamber 6 is subsequently pressurized and closed by the relative rotation between the inner housing 5 and the chamber 6. It is also possible to snap-lock the inner housing 5 in the closed valve position after the chamber 6 has been filled.

  The sealing element 10 is designed to substantially abut the closure pin 7 with preload in the region of the discharge hole. This makes it possible on the one hand to prevent any clogging of the first outlet recess 27 between the sealing element 10 and the closing pin 7 and, on the other hand, the sealing lip 29 to effectively prevent leakage. .

  In the illustrated embodiment, the seal lip 29 having the groove 30 on the outside provides additional flexibility to minimize the resistance created during the pressurized release of the chamber contents.

  15-19 illustrate another embodiment substantially based on the exemplary embodiments of FIGS. 11-14.

  In this case, the chamber 6, the discharge nozzle 13 and the closure pin 7 are furthermore connected to each other non-rotatably and rotatably as a whole with respect to the inner housing 5, but rigidly connected to this inner housing 5 in the axial direction. Has been done.

  As in the exemplary embodiment described above, the preferably outer peripheral bead 9 on the discharge nozzle 13 can again engage the associated annular groove 12 of the inner housing 5. This allows rotational displacement of the closing pin 7 relative to the inner housing 5, in particular. However, relative axial displacement is prevented.

  In the previous embodiment, rotation of the lid element 4 in the direction from the closed position to the lid removal position results in (first) rotation of the chamber 6 with the closing pin 7 with respect to the inner housing 5 and an overlapping of the inner housing 5. Although an axial displacement in the lid removal direction with the chamber 6 with the closing pin 7 has occurred, in the embodiment of FIGS. 15-19, when the rotation of the lid element 4 is started from the closed position in FIG. Only the rotation of the closure pin 7 with respect to the inner housing 5 via the chamber 6 can be performed first without the axial displacement described above.

  Axial displacement of the chamber 6 with the closing pin 7 and the inner housing 5 in the removal direction is prevented until the discharge position shown in FIGS. 18 and 19 is reached.

  This is substantially achieved in the axial direction by the freewheel of the lid element 4 with respect to the chamber 6.

  For this purpose, in the longitudinal section of FIG. 15, stop ribs 15 are provided on the outer side of the wall of the chamber 6, which are directed radially outward towards the inner wall surface of the lid element 4. In the closed position of the lid of FIG. 15, in the exemplary embodiment shown, the drive ribs 16 projecting substantially radially inward are spaced axially below this stop rib 15 and inside the wall of the lid element 4. It is provided.

  In FIG. 15, the axial distance between the drive rib 16 and the stop rib 15 in the selectively sealed closed position of the lid is preferably the axis of the lid element 4 during rotation of the lid element 4 by about 180 °. Can be adapted to the directional displacement path. Thus, the axial distance can be between 1 mm and 2.5 mm, for example between 1.6 mm and 1.8 mm.

  The chamber 6 is held non-rotatably on the lid element 4 but can be axially displaced linearly within the lid element 4 at the distances mentioned above. To this end, axially extending ribs 31 are provided on the outside of the wall of the chamber 6 and likewise engage axially extending ribs 32 corresponding to the inside of the wall of the lid element 4. (See FIG. 16).

  In this way, the chamber 6 and the components connected to it can be displaced vertically with respect to the lid element 4, and the chamber 6 is simultaneously rotated by the lid element 4.

  Due to the rotational displacement of the lid element 4 starting from the closed position of FIG. 15 and the corresponding rotational drive of the chamber 6, the closing pin 7 seated on the sealing element in this embodiment also has a release position. And the outlet recesses 26 and 27 are moved into the corresponding arrangements shown in FIGS. 18 and 19. In this case, the groove-shaped outlet recesses also overlap in the axial direction to form a flow channel for ejecting the medium.

  As an example, no axial displacement of the chamber 6 and the inner housing 5 occurs in the course of this initial rotational displacement over an angle of about 180 °. This axial displacement, particularly the axial displacement for removing the inner housing 5 from the container opening 3, is caused by the fact that the lid-side rib 32 acts on the chamber-side rib 31 by continuing the rotational displacement of the lid element 4. It is preferable to start only when the discharge position of 18 and FIG. 19 is reached.

  20 to 23 show another embodiment. In this case, the chamber bottom 33 is formed by the inner housing 5 in a manner substantially similar to the embodiment described above. In the cross-section shown in FIG. 20, this chamber bottom extends at an acute angle to the plane along the body axis of the closure device 1.

  The chamber bottom 33 transitions into a channel 34 around its entire circumference. In the cross section shown in FIG. 20, this channel is defined by a radially inner channel side wall 35, a radially outer channel side wall 36 and a channel bottom 37.

  The radially inner channel side wall 35 transitions into the chamber bottom 33, while the radially outer channel side wall 36 substantially forms the housing wall of the inner housing 5.

  The soft plastic layer 38 specifically covers the surface of the channel bottom 37, but preferably also the surface of the radially inner channel side wall 35 facing the channel space, and optionally the chamber facing the chamber 6 as shown. The surface of the bottom 33 is also covered. This soft plastic layer can preferably be made with the inner housing 5 in a two-component injection molding process. Alternatively, the soft plastic layer 38 can also be made separately in the form of a pot-shaped member, for example snap-locked inside the inner housing 5.

  At least one discharge hole or closing hole 8 is formed in the region of the channel bottom 37, in which case the opening axis of the discharge hole or closing hole 8 is preferably in the same orientation as the body axis of the closure device 1, ie Substantially along the vertical line in the standing state of the container 2.

  The discharge holes 8 are formed in the form of perforations and extend through the hard plastic material in the region of the chamber bottom 33 and the soft material in the region of the soft plastic layer 38.

  Similar to the description of the embodiment shown in Figures 11 to 19, the closure means and the sealing element in the embodiment of Figures 20 to 23 also interact in the form of a rotary slide valve.

  The sealing element 10 is formed by a soft plastic layer 38. The closure means V is formed in this embodiment in a substantially plug-shaped manner, in particular by the wall of the discharge nozzle 13.

  The discharge nozzle 13 extends in a substantially cylindrical form, in which case an annular free end, which in the operating state normally faces downwards, projects into the channel 34 of the inner housing 5.

  In this case, the closure means V corresponding to the annular end region of the radiating nozzle 13 is permanently seated in the sealing element 10, in this case the channel 34, and is therefore displaced axially with respect to the sealing element 10. do not do. The closure means V preferably only displace circumferentially with respect to the sealing element 10, in particular with respect to the soft plastic layer 38, the displacement of the closure means occurring over an angle of, for example, 180 ° and limited by the stopper. To be done.

  In this case, the closure means V has a (second) outlet recess 26 in the form of a groove, the edges of which open radially inward toward the radially inner channel side wall 35 and of the discharge hole 8. It opens downward in the axial direction. In the closed position of FIGS. 20 and 21, the groove is arranged in the direction of the channel 34 and is separated from the first outlet recess 27 formed in the region of the channel side wall 35 by approximately 180 °. Therefore, this groove is formed in the region of the soft plastic layer 38.

  This first outlet recess 27 is also preferably formed in the form of a groove, in particular in the form of an axially extending groove. According to the illustrated exemplary embodiment, this first outlet recess 27 is provided at the transition from the channel side wall 35 to the channel bottom 33 and is axially spaced from the discharge hole 8.

  Therefore, the channel 34 is radially expanded in the region of the first outlet recess 27.

  The rotational displacement causes the seated plug-shaped closing means V of the channel 34 to be turned into the ejection position, whereby the outlet recesses 26 and 27 move into the corresponding arrangement as shown in FIG. To be made. This is because the groove-shaped outlet recesses are axially overlapped and the second outlet recesses 26 are assigned to the discharge holes 8 so that they can discharge the medium present in the chamber 6. Means forming a flow channel.

  The first outlet recess 27 is open towards the chamber 6 in the axial direction.

  The above-described examples are used to describe all the inventions included in the present application, and to improve the prior art independently by at least the following combination of characteristic configurations.

  The closure means is a closure pin 7, the closure pin 7 being rigidly connected to the chamber 6 and having a vertical extension relative to the axis of rotation, and the closure means being different over said vertical extension. A closure device 1 characterized in that a region, i.e. a distribution region and a closure region, is formed.

  Closing device 1 characterized in that the closing means is a closing pin 7 and that the closing pin 7 is connected to the chamber by a snap locking member 22.

  Closing device 1 characterized in that the opening means are outlet recesses 26, 27 which are formed depending on the direction of rotation.

  The inner housing 5 has a (first) outlet recess, and the (first) outlet recess is located on the chamber 6 only by relative rotation between the chamber 6 and the inner housing 5 in the process of loosening the screw. Closure device 1 characterized in that it is aligned with the formed (second) outlet recess.

  Closure device 1 characterized in that a (second) outlet recess 26 is formed on the closure pin 7.

  Closure device 1 characterized in that the closure pin 7 is connected to the chamber 6 by a snap lock member 22.

  A closure device 1 characterized in that the movement takes place without any relative axial movement between the chamber 6 and the inner housing 5.

 The lid element 4 moves relative to the chamber 6 in the removal direction of the lid element 4 to a limited extent with respect to the container 2 in the first movement section of the lid element 4 in the course of the removal of the lid element 4 from the container 2. Closure device 1 which is possible and is operatively associated with the container 2 in the second operating section.

  Closure device 1 characterized in that the movement between the chamber 6 and the inner housing 5 releases the medium only by moving the closure means and the opening means in a horizontal plane relative to each other.

  Closing device 1 characterized in that the lid element 4 can be moved rotationally relative to the chamber 6 in the first working section.

  Closing device 1 characterized in that the chamber 6 has a closing member in the form of a closing pin 7 and the opening means interacts with the closing member.

  Closure device 1 characterized in that the closure pin 7 is formed integrally with the chamber 6.

  Closing device 1 characterized in that the closing pin 7 has a freely projecting closing end that can be inserted into a closing hole 8.

  Closing device 1 characterized in that the closed end has a diameter substantially corresponding to the inner diameter of the closing hole 8.

  Closing device 1 characterized in that a sealing element 10 is provided on the closing hole 8 and / or the closing pin 7 for closing the closing hole 8 in a liquid-tight manner with the closing pin 7.

  Closure device 1 characterized in that a sealing element 10 is provided on the inner wall of the closure hole 8 and that inner wall is coated with a sealing material to form the sealing element 10.

  A closure device 1 characterized in that the closure hole 8 is part of a flow channel 11, the length of the flow channel corresponding to at least 5 times its diameter and not more than 20 times its diameter.

  A closing device 1 characterized in that a chamber 6 is arranged concentrically with the inner housing 5, the chamber 6 being axially displaceable in the inner housing 5 by the opening process of the closing device 1 with respect to the container 2.

  Closure device 1 characterized in that the chamber 6 has an opening on the side of the container and a snap lock member 22 with a U-shaped cross section surrounds the opening edge of the opening.

  Closure device 1, characterized in that the (first) outlet recess 27 of the chamber 6 also forms the lowest region of the discharge path in the open state of the closure device.

  Closing device 1 characterized in that the discharge holes on the inner housing 5 form a sealing lip 29 which abuts the closing means of the chamber 6.

  Closure device 1 characterized in that the chamber 6 has a chamber bottom 33 and the chamber bottom 33 transitions into a channel 34 with a discharge hole 8.

  Closure device 1 characterized in that the channel 34 is closed in the form of a ring.

  The closure device 1 characterized in that the discharge holes 8 are formed in the channel bottom 37 and / or the channel side wall 36.

  The closure device 1 characterized in that a plurality of discharge holes 8 are formed in the circumferential direction of the channel 34.

  Closure device 1 characterized in that the chamber bottom 33 has a soft plastic layer 38.

  Closure device 1 characterized in that the discharge holes 8 are formed only in the soft plastic layer 38.

  All the disclosed features (whether individually or in combination with each other) are essential to the invention. The disclosure content of the relevant / attached priority documents (duplication of the priority application) is also fully incorporated into the disclosure of the present application, ie the features of these documents are also integrated in the claims of the present application. The characteristic features of the dependent claims characterize an independent and original improvement over the prior art, especially for filing a divisional application based on these claims.

1 Closing Device 2 Container 3 Container Opening 4 Lid Element 5 Inner Housing 6 Chamber 7 Closing Pin 8 Closing Hole 9 Bead 10 Sealing Element 11 Flow Channel 12 Annular Groove 13 Discharge Nozzle 14 Channel Dome 15 Stop Rib 16 Drive Rib 17 Screw Thread 18 Screw 19 Collar 20 Snap lock projection 21 Flat area 22 Snap lock member 23 Snap lock collar 24 Seal lip 25 Cylindrical portion 26 Outlet recess 27 Outlet recess 28 Discharge hole 29 Seal lip 30 Groove 31 Rib 32 Rib 33 Chamber bottom 34 Channel 35 Channel Side wall 36 Channel side wall 37 Channel bottom 38 Soft plastic layer V Closing means

Claims (16)

A closure device (1) for a container (2) comprising a container opening (3), said closure device (1) for closing said container opening (3); A chamber (6) assigned to the lid element (4) and an inner housing (5), said chamber (6) and said inner housing (5) further having closing means and opening means, Opening the discharge hole (8) provided as the opening means in the chamber (6) by rotationally moving the closing means connected to the lid element (4) with respect to the inner housing (5). The closing means and the opening means correspond to and interact with each other so that the medium contained in the chamber (6) can be discharged into the container (2). At
The closure means is a closure pin (7) rigidly connected to the chamber (6) and having a vertical extension relative to the axis of rotation, and the closure means is attached to the vertical extension. A closing device characterized in that different regions, which are a circulation region and a closing region, are formed over the entire area. Characteristic construction of the pre-stage part according to claim 1, characterized in that said closing means are closing pins (7) and said closing pins (7) are connected to said chamber by snap-lock members (22). A closure device (1) according to or according to claim 1. The opening means has an outlet recess (26, 27) formed depending on the direction of rotation and / or
The inner housing (5) preferably has a (first) outlet recess (27) so that in the process of loosening the screw, only by relative rotation between the chamber (6) and the inner housing (5) The (first) outlet recess (27) is aligned with the (second) outlet recess (26) formed in the chamber (6) without requiring relative movement in the direction of the axis of rotation; And / or
The (second) outlet recess (26) is preferably formed on the closure pin (7) and / or
Said closure pin (7) is connected to said chamber (6) by a snap lock member (22) and / or
Closure device (1) according to claim 1 or 2, characterized in that said movement takes place without relative axial movement between said chamber (6) and said inner housing (5). Said lid element (4) of said lid element (4) during removal of said lid element (4) from said container (2) with respect to said chamber (6) in the direction of removal of said lid element (4). Displaceable to a limited extent with respect to said chamber (6) in a first operating section and operatively coupled with said chamber (6) in a second operating section. Closing device (1) according to the characteristic construction of the preceding part of paragraph 1 or according to any of claims 1 to 3. The movement between the chamber (6) and the inner housing (5) allows the ejection of the medium only by moving the closing means and the opening means relative to each other in a horizontal plane, and / or
The lid element (4) can be preferably rotationally moved relative to the chamber (6) in the first operating section and / or
Said chamber (6) has a closure member in the form of a closure pin (7) and said opening means interacts with said closure member and / or
Closure device (1) according to any of claims 1 to 4, characterized in that the closure pin (7) is formed integrally with the chamber (6). The closure pin (7) has a freely projecting closed end (9) that can be inserted into the discharge hole (8), the closed end (9) preferably being the closure hole (8). ) A closure device (1) according to any of the preceding claims, characterized in that it has a diameter substantially corresponding to the inner diameter of). A sealing element (10) is provided in the closing hole (8) and / or the closing pin (7) for closing the closing hole (8) in a liquid-tight manner by the closing pin (7). The closure device (1) according to any of claims 1 to 6. A sealing element (10) is provided on the inner wall of said closure hole (8) and / or
Closure device (1) according to any of claims 1 to 7, characterized in that the inner wall is coated with a sealing material to form the sealing element (10). The discharge hole (8) is part of a flow channel (11), the length of the flow channel is at least 5 times its diameter and not more than 20 times its diameter, and / or
Said chamber (6) is preferably arranged concentrically to said inner housing (5), said chamber (6) being said inner housing (5) by the opening process of said closure device (1) to said container (2). Axially displaceable within and / or
The chamber (6) preferably has an opening on the side of the container, and a snap lock member (22) having a U-shaped cross section surrounds the opening edge of the opening. Closure device (1) according to any one of 8. The (first) outlet recess (27) of the chamber (6) further forms the lowest region of the discharge path in the open state of the closure device, and / or
10. The discharge hole on the inner housing (5) preferably forms a sealing lip (29) which abuts the closing means of the chamber (6). Closure device (1). Said chamber (6) has a chamber bottom (33), and
Closure device (1) according to any of the preceding claims, characterized in that the chamber bottom (33) transitions into a channel (34) with a discharge hole (8). Closure device (1) according to any of the claims 1 to 11, characterized in that the channel (34) is closed in the form of an annulus. Closure device (1) according to any of the preceding claims, characterized in that the discharge holes (8) are formed in the channel bottom (37) and / or the channel side wall (36). Closure device (1) according to any of the preceding claims, characterized in that a plurality of discharge holes (8) are formed over the circumference of the channel (34). Closure device (1) according to any of the preceding claims, characterized in that the chamber bottom (33) comprises a soft plastic layer (38). Closure device (1) according to any of the preceding claims, characterized in that the discharge holes (8) are formed only in the soft plastic layer (38).

Images