DE102014015202B3 - cap - Google Patents

Abstract

A closure cap for a container (1) is described, comprising a closure element (2) which can be attached to the container (1) and which has a sleeve (3) whose lower opening (5) is closed by an impermeable membrane (6). an actuation cap (7) having a top wall (8) and a downwardly extending thrust tube (10) engaging an underside (9) of the top wall (8) and a substance filled chamber (11) passing through the push tube (10), the cover wall (8), a portion of the sleeve (3) and the membrane (6) is formed, wherein the closure element (2) and the actuating cap (7) by means of a thread (12) are helically movable relative to each other and the thread (12) comprises first and second threaded members (20, 21), wherein the first threaded member (20) is disposed on the actuating cap (7) and the second threaded member (21) is disposed on the sleeve (3). The invention had the object of providing a cap, with the risk of unintentional opening of the chamber (11) is minimized even at high load. The object is achieved according to the invention with a closure cap in which the first threaded element (20) of at least one guide cam (23) and the second threaded element (21) from a front side of the sleeve (3) arranged helical contour (29) is formed, on which the guide cam (23) is supported.

Description

The invention relates to a cap for a container with the standing in the preamble of claim 1 features.

Such caps are used to store and transport a first liquid or dry substance in a dedicated chamber separate from the second substance in the container. For this purpose, the cap is attached to the container. Only at the time of use, the filled with the first substance chamber is opened by an operation of the user and the first substance falls or flows into the container below, mixes there with the second substance filled therein and can then be consumed. This results in the advantage of a mixture of the first and second substances produced only at the time of consumption, whereby, for example, a longer shelf life for drinks can be achieved. The ingredients stored in the chamber can be stored dry and hermetically separated from the environment. Chemical preservatives or stabilizers can therefore be dispensed with. It is also possible to store in the chamber a first substance which reacts chemically with a second substance in the container and achieves the desired result after the reaction.

A known from the prior art cap is in the DE 20 2012 007 857 U1 described, in which case the actuating cap relative to the closure element is movable by means of a link. The gate includes a cam projecting on the closure element and an L-shaped recess in the actuating cap into which the cam protrudes. For opening the chamber, the actuating cap must first be rotated in the circumferential direction until the cam has moved from a horizontal leg of the L-shaped recess in the vertical leg. Only in this position, the actuator cap can be pressed down in the axial direction and the membrane can be opened. However, it has been found that with a very large load the mushroom-shaped actuating cap can deform and, as a result, can slide over the closure element. Also, the opening procedure is perceived as cumbersome because the operator first has to perform a rotational movement and then a pushing movement of the actuating cap.

Another cap describes the EP 2 481 681 A1 , The chamber provided for storing the first substance is closed on the underside by a membrane which is pierced after a rotational movement of the actuating cap, so that the first substance can flow out of the chamber into the container. However, the known caps were to be transported only with great care, since when stacking several filled and already arranged on the containers caps, the underlying actuating caps of the caps were pressed downwards solely due to the load in the axial direction, and pierce the membrane, so that the first and second substances were already mixed during transport.

For this reason, the invention has the object to provide a cap, with the risk of unintentional opening of the chamber is minimized even at high load.

The object is achieved with the characterizing features of claim 1. A container is understood in particular to mean a drinking bottle which is tightly closed by means of the closure cap fastened thereto. The closure element and the actuating cap are preferably each made as an integral, one-piece component. Before consuming, the user first opens the chamber by a predetermined rotational movement of the actuating cap and thereby releases the first substance contained therein, which then mixes with the second substance contained in the container. Subsequently, the operator may consume the two mixed substances by removing the entire cap from the container. Overall, the operator performs two opening movements, namely a first chamber opening and then a second container opening.

The helical contour forms an upper end of the sleeve and surrounds an upper opening of the sleeve, in which the torque tube is inserted. The torque tube is guided by the sleeve in the axial direction. Advantageously, the sleeve and the torque tube have a circular cross-section.

During transport and also during opening, the guide cam is always supported on the helical contour and thereby initiates a force acting on the actuating cap normal force as a compressive force in the axial direction in the sleeve. As a result, particularly high forces can be absorbed without deformation. During the rotational movement for opening the chamber, the guide cam slips on the helical contour. Due to its helical profile, the spiral contour ensures an axial feed of the torque tube beyond the lower level of the diaphragm. A membrane is understood to mean, in particular, a flexurally soft and thus deformable film.

Advantageously, the guide cam on a bottom, which forms a parallel plane with the helical contour. This results in a surface-like contact of the guide cam with the helical contour and it will be punctual surface pressures avoided. This in turn ensures a smooth slipping of the guide cam on the helical contour. It is essential here that the guide cam spans on its underside a parallel plane, which need not necessarily be formed as a continuous surface. It is also possible to provide a plurality of partial surfaces, but then together span a plane and thereby rest together on the helical contour.

According to a first preferred embodiment, the guide cam is formed of a plurality of ribs arranged parallel to one another in the axial direction. The axially parallel ribs may be radially aligned with the torque tube. The guide cam may for example be formed from three ribs. This first embodiment is representative of a guide cam, whose underside is indeed aligned parallel to the helical contour, but is formed only by the lower ends of the ribs. The lower ends of the ribs stand together on the helical contour.

According to an alternative embodiment, the guide cam may also be formed by an invagination of the top wall. In this case, the top wall is wedge-shaped lowered, wherein the underside of this wall portion of the top wall is the guide cam. The indentation is therefore matched to the inclination of the helical contour, wherein the underside of the indentation forms a continuous parallel plane with the helical contour. The indentation may optionally also continue in a collar wall surrounding the top wall. This alternative embodiment has the advantage that the recess also present on the outside can serve as a gripping surface and simplifies the opening of both the chamber and the container.

Conveniently, the first threaded element comprises a first thread and the second threaded element comprises a second thread which cooperates with the first thread. The pitch of the first and second thread corresponds to the pitch of the helical contour. The mutually cooperating first and second thread traps a tensile load occurring in the axial direction and thereby prevents the actuating cap from being separable from the closure element, in particular during transport or during use.

It has proved to be useful when the first thread and the second thread are supported with their sides facing each other against each other. For this purpose, the first and second thread overlap in the circumferential direction always at least partially. Due to the area-like contact of the mutually facing sides of the respective thread a particularly defined rotational movement and a continuous feed of the torque tube.

The guide cam may be spaced in the axial direction to the second thread, wherein preferably the first thread and / or the helical contour between the second thread and the guide cam is arranged. This results in a particularly compact design in the axial direction of the closure element.

Advantageously, the helical contour follows the course of the first and / or second thread, whereby a largely play-free rotational movement of the actuating cap relative to the closure element can be realized.

Conveniently, the actuating cap on a engaging on the top wall and radially spaced sleeve tube collar wall. The collar wall can surround the torque tube concentrically. Due to the thereby enlarged outer diameter of the actuating cap, the operator can better grip them and apply a larger torque to open the chamber but also the container. In addition, an internal thread can be formed on an inner side of the collar wall, that is to say on the side facing the thrust tube.

Also may expediently attack the guide cam on the collar wall and / or the torque tube and / or the top wall. In particular, by an additional attachment of a guide rib formed by a plurality of ribs on the inside of the collar wall results in a significantly increased strength of the individual ribs, whereby the ability to accommodate high pressure loads can be further increased.

Preferably, the first thread is opposite the collar wall in the direction of the torque tube. Advantageously, the second thread also protrudes in the radial direction with respect to the sleeve. As a result, the material in the region of the collar wall and / or the sleeve is not weakened, since no material reduction is necessary, for example, when cutting a recessed thread turn.

It has proved to be expedient if the first thread and / or the underside of the guide cam and / or the second thread and / or the helical contour have a pitch of 5 ° to 30 °, particularly preferably of 10 ° to 20 °. This results in a sufficient axial feed of the torque tube to replace the membrane and release the first substance from the chamber, from the wrist of the operator with a simultaneously acceptable effort. With a lower pitch, the operator would have to embrace, with a larger pitch would be greater forces apply.

The helical contour may have a support region with a pitch of 0 ° and / or a concave shape with respect to the guide cam on its end facing in the axial direction of the top wall. In this area, the guide cam is located during transport and can not slip on a load in the normal force direction on the inclined portion of the helical contour. Only a rotational movement of the actuating cap applied by the user brings the guide cam out of the support area into the inclined section of the helical contour.

Conveniently, the thread is formed such that by turning the actuating cap in a predetermined direction of rotation, the torque tube with its lower end in the axial direction at least partially passes through the lower opening and opens the membrane.

Preferably, the predetermined direction of rotation of the actuator cap is directed counterclockwise. The opening of the chamber for releasing the first substance into the container thus takes place in the usual sense of direction by a left-hand rotation of the actuating cap.

Advantageously, the membrane is secured in the region of the lower opening by means of a weld on an end face of the sleeve. The weld can be produced simply by thermal sealing of the preferably plastic-coated membrane. On the other hand, the weld forms a predetermined breaking point for the lower end of the torque tube during the opening of the chamber, so that the membrane is not separated as such and pierced.

Conveniently, the thrust tube at its lower end facing the membrane at least one in the axial direction above the wedge on, which opposite to the direction of rotation may have a rising edge in the circumferential direction and a subsequent cutback behind. Preferably, the rising flank is provided at its axially projecting end with a contact area, the first line-like contacted the membrane upon rotation of the actuating cap in rotation, and then lifts off from the front side of the sleeve.

Conveniently, upon further rotation of the actuating cap, a portion of the rising flank lying in the direction of rotation in front of the contact region continuously lifts the membrane. This pushes successively from above with simultaneous rotation in the circumferential direction against the transition region of detached and still attached membrane.

Advantageously, after a rotation of the actuating cap, the weld with a circumferential angle of 160 ° to 200 °, particularly preferably 180 °, detached from the front side. Such a detached from the sleeve membrane is sufficient to ensure that the first substance can completely escape from the chamber. On the other hand, the membrane is still sufficiently attached to the sleeve, so that no complete detachment of the membrane is possible. This should be avoided at all costs, as otherwise the membrane or parts of the membrane could float freely in the container and be swallowed during consumption.

It has been found to be particularly useful when the thread is a two-threaded motion thread with two first and second threaded elements. Multi-start threads are due to their large pitch angle movement thread. They already allow with a partial rotation a strong axial displacement of the threaded part. If the thread is double-threaded, a new thread begins every 180 °, it is three-speed, every 120 °. Preferably, the first threaded elements and the second threaded elements are each arranged offset by 180 °. With the aid of the double-threaded thread, the actuating cap is fastened on opposite sides to the closure element, so that forces are transmitted uniformly from the actuating element to the closure element and a particularly defined and wobble-free opening is possible.

The sleeve may comprise two end-face helical contours each having a Endanschlagswandabschnitt which is disposed between an outlet of one of the second threads and an axially extending abutment edge, said abutting edge intersects an inlet of the other second thread turn and its associated helical contour. During opening, the actuation cap, and thus the guide cam located beneath its cover wall, rotates until it reaches the abutting edge in the circumferential direction. In this position, the opening position of the chamber is defined. In the axial direction is in this defined open position under the guide cam a horizontally extending portion of the helical contour, that is, a section with the slope 0 °. In this defined position, the operator feels that a further rotation of the actuating cap is not necessary and also not useful, especially since then the membrane could possibly completely detached from the sleeve.

Conveniently, a pawl is formed on at least one of the two Endanschlagswandabschnitte characterized in that the Endanschlagswandabschnitt interrupted at a distance corresponding to or greater than a width of the guide cam to the respective nearest abutting edge and provided with an undercut. The pawl is to prevent that, when the operator after opening the container and consuming its contents screw the closure element clockwise back to the container, in a clockwise rotation of the actuator cap not the closure element relative to the container, but only the actuator cap relative to the closure element turns back.

Advantageously, both of the first threads span a circumferential angle of 210 ° to 240 °, more preferably from 215 ° to 235 °, most preferably from 220 ° to 230 °. By contrast, the two second threads can span a circumferential angle of 100 ° to 140 °, particularly preferably 115 ° to 125 °. As a result, the two first and second threads are in operative engagement with each other over the entire rotation to be performed by the operator.

Conveniently, the closure element is formed on its side facing the container with a wall apron which surrounds the sleeve coaxially and extends down towards the container to the lower level of the sleeve. On one of the sleeve-facing side of the wall skirt, an internal thread can be formed, which can be brought into operative engagement with a container thread. By means of the internal thread and the container thread, the entire closure cap, comprising the closure element and the actuating cap, for consuming the substances contained in the container can be completely removed and then replaced.

Particularly advantageous is an embodiment in which the thread has a harder material and / or a greater pitch than the internal thread. Since it is preferred that both the thread between the actuating cap and closure element and the internal thread for opening the chamber or the container leads to a left turn, is achieved by means of this embodiment that the thread first dissolves and only then the internal thread. Otherwise, the first time it is opened, the entire cap would possibly come loose from the container without opening the chamber first and allowing the first and second substances to mix.

It has proven to be advantageous if a tamper-evident ring is attached to the collar wall by means of predetermined breaking points. This ensures that the first and second substances are stored separately from each other and have not been mixed together before consumption.

Advantageously, the tamper-evident closure ring lies with its underside on an upper side of the wall apron so that it forms an abutment in the axial direction.

Preferably, the tamper-evident closure ring has an inner diameter and the actuator cap has an outer diameter, wherein the inner diameter is greater than the outer diameter and immerses the actuating cap in the axial direction during the helical movement in the tamper-evident closure ring. The tamper evident ring therefore does not need to be disconnected from the cap. Otherwise, a separate, separate tamper-evident ring should be kept and disposed of separately. Also, due to this solution, there is no danger that the tamper evident seal will be lost and pollute the environment.

Conveniently, a plurality of circumferentially distributed projections are provided on an inner wall of the tamper-evident closure ring, which engage in an annular groove formed on the outside of the sleeve. As a result, the tamper evident seal is secured against loss by stripping in the axial direction, since the projections project circumferentially distributed in this.

In the annular groove a plurality of circumferentially distributed blocking webs may be formed. These prevent co-rotation of the tamper evident closure ring upon rotation of the actuating cap in the open position and in particular ensure that the predetermined breaking points shear off to the co-rotating part of the actuating cap, in particular the collar wall. This is assisted in a particularly favorable manner when in the predetermined direction of rotation in the direction of the blocking webs located flanks of the projections are aligned perpendicular to the inner wall of the tamper-evident ring. These flanks encounter a rotation of the actuating cap in the open position, first against the blocking webs and are held there form-fitting. With a further rotation, the predetermined breaking points finally shear off.

For a better understanding of the invention is explained in more detail below with reference to 7 figures. It show the

1 a perspective top view of a cap with an actuating cap according to a first embodiment prior to its use;

2 a cross section through the cap according to 1 ;

3 a cross section through the cap according to 1 during rotation of the actuator cap;

4 a cross section through the cap according to 1 after turning the actuator cap and thereby opened membrane;

5 a side view of a cap with an actuating cap according to a second embodiment;

6 a perspective top view of a closure element and

7 : a top view of a tamper evident ring.

The 1 shows in a perspective view of a closure element 2 and actuator cap 7 assembled cap in its transport position. The closure element 2 takes a container on its underside 1 which, as such, is not further shown and irrelevant in its nature to the invention. In the section of the container shown 1 it is in particular a bottleneck with an opening arranged therein.

The actuation cap 7 is in its transition region to the closure element 2 Concentric of a tamper evident ring 42 surrounded by predetermined breaking points 41 on the actuating cap 7 is attached. The originality closure ring 42 indicates if the actuator cap 7 opposite the closure element 2 was rotated in a predetermined direction of rotation d and due to this rotation, a chamber 11 that are particularly good in 2 was opened, leaving a first substance filled in the container underneath 1 fallen and settled with a second substance inside the container 1 has mixed. However, the mixing of the first and second substances should only take place immediately before consumption.

The 2 illustrates in a cross-sectional view of the structure of the cap. Their actuator cap 7 initially includes a flat top wall 8th and one at the bottom 9 attacking torque tube 10 , The torque tube 10 goes at its upper end in the top wall 8th over and has a cylindrical shape. With its lower end 10a protrudes the torque tube 10 in a sleeve 3 of the closure element 2 in and lies with its outer wall surface largely sealing to the inner wall of the sleeve 3 at. The sleeve 3 encloses this overlapping portion of the torque tube 10 completely in the circumferential direction. When the closure element 2 on the container 1 is attached, the sleeve protrudes 3 in the container 1 into it, causing the chamber 11 can be formed at a relatively low height of the cap with maximum volume.

A lower opening 5 the sleeve 3 is completely covered by a membrane 6 covered, with the membrane 6 by means of a weld 13 on the lower front side 4 the sleeve 3 is attached. The wall thickness should be in the area of the front side 4 between 0.8 mm and 2.5 mm to provide sufficient contact area for the weld 13 to have.

The lower end 10a of the push tube 10 is as a wedge 14 molded, which projects in the axial direction x and in the transport position according to 2 immediately above the membrane 6 ends. The term "immediate" in this context means that no other components of the cap between release wedge 14 and membrane 6 available.

The chamber 11 is by the actuator cap 7 from the top wall 8th as well as the torque tube 10 and on the part of the closure element 2 not from the push tube 10 covered section of the sleeve 3 and the membrane 6 educated. In the chamber 11 is stored in powdery or viscous form, a first substance.

Next to the sleeve 3 includes the closure element 2 a wall apron 38 which the sleeve 3 concentrically surrounds and x in the axial direction with this concludes. The wall apron 38 has an internal thread 39 which is in operative engagement with a container thread 40 can be brought and serves, the closure element 2 detachable with the container 1 connect to.

In the transition area of the wall apron 38 to the sleeve 3 lies a bottom 43 the originality closure ring 42 loose on a top 44 the wall apron 38 on.

On the wall apron 38 also has a second tamper evident ring 51 attack by a bead 52 below the container thread 40 is held and when unscrewing the closure element 2 from the container 1 gets destroyed. The second tamper evident ring 51 Indicates whether the container is in 1 second substance, regardless of the fate of the one in the chamber 11 stockpiled, manipulated, or at least exposed to the atmosphere.

By a rotary movement of the actuating cap 1 in the direction of rotation d (see 1 ) against the closure element 2 slides the torque tube 10 rotating in the axial direction x in the sleeve 3 into it and pushes his at the bottom 10a molded release wedge 14 the membrane 6 on. The axial end of the detachment wedge 14 is due to a rising edge 15 and a back cutback in the axial direction x 16 defined, with the rising edge 15 a contact area 17 with the membrane 6 having. After contacting the membrane 6 from this contact area 17 the flank 15 first detached. Subsequently, one releases in the direction of rotation d in front of the contact area 17 lying section 18 the rising edge 15 the membrane 6 continuously off.

Through the combined turning and advancing movement of the detachment wedge 14 becomes the membrane 6 initially punctured and starting from this point along the weld 13 deducted.

The combined rotation and feed movement of the push tube 10 is by an between actuator cap 7 and closure element 2 arranged thread 12 whose components are also in 3 can be seen. The thread 12 includes part of the actuator cap 7 a first threaded element 20 that from a first thread 22 and a guide cam 23 consists. On the part of the closure element 2 is a second threaded element 21 provided, in turn, from a second thread 28 and a helical contour 29 consists. Since it is in the representations of the 1 to 6 a two-start thread 12 are the respective components first and second thread 22 . 28 , Spiral contour 29 and leadership cams 23 duplicated.

The first thread 22 is the actuator cap 7 assigned, the top wall 8th in the radial direction y over the torque tube 10 protrudes. The top wall 8th bends at its radially outer end by about 90 ° down and goes into a collar wall 19 over, concentric the torque tube 10 surrounds. Between torque tube 10 and collar wall 19 This is a downwardly open gap 53 formed, in which the sleeve 3 in the transport position according to 2 only partially and after opening of the membrane 6 corresponding 4 has completely migrated.

The first thread 22 is on the push tube 10 facing side of the collar wall 19 formed above. The second thread 28 located on the outside of the sleeve 3 and faces the sleeve 3 in the direction of the collar wall 19 in front. The first and second threads overlap 22 . 28 partially in both the radial direction y and in the circumferential direction, so that a lifting of the actuating cap 7 from the closure element 2 is not possible because one page 25 of the first thread turn 22 flat on one side 30 of the second thread 28 is present (see 4 ). In the axial direction x is the first thread 22 below the second thread 28 arranged, that is at a lesser axial distance from the container 1 as the second thread 28 ,

Thrust forces acting in the axial direction are not affected by the first and second threads 22 . 28 , but of the spiral contour 29 and the guide cam 23 transfer. The interaction of spiral contour 29 and leadership cams 23 is in 3 and the formation of the spiral contour 29 in 6 particularly easy to recognize.

In the embodiment according to the 3 Every guide cam exists 23 exemplified by three axially parallel ribs 26 , The length of the ribs 26 in the axial direction x is at a slope S of the helical contour 29 adapted so that all ribs 26 evenly from above on the spiral contour 29 get up and thus a broken bottom 24 of the guide cam 23 represent. The slope S is also identical for the first and second thread 22 . 28 ,

In the transport position engages at least a portion of the actuation cap 7 trained leadership cam 23 , or the longest in the axial direction rib 26 , on a support area 31 the helical contour 29 , The support area 31 has no slope S and may be concave except for the guide cam 23 particularly secure to hold stationary. In this position, the acts on the actuator cap 7 applied compressive force orthogonal to the support area 31 and there is no resultant force in the direction of the helical contour 29 ,

Only after leaving the transport position by rotation of the actuating cap 7 in the direction of rotation d, the guide cam arrives 23 from the support area 31 on top of the helical contour 29 and rests there until reaching a Endanschlagswandabschnittes 32 from. With reaching the Endanschlagswandabschnittes 32 is the torque tube 10 maximum in the sleeve 3 penetrated and has the membrane 6 in half from the lower opening 5 deducted (see 4 ).

In the 5 is an alternative embodiment of the actuator cap 7 shown in which instead of a plurality of axially aligned ribs 26 an inward invagination 27 the top wall 8th and the collar wall 19 is provided. The invagination 27 forms directly from the top wall 8th a guide cam 23 off, its bottom 24 flat on the helical contour 29 rests. The closure element 2 requires for this second embodiment of the actuator cap 7 no adjustment.

Representative of all embodiments of the actuator cap 7 are in the 5 the proportions of the originality closure ring 42 and the actuator cap 7 shown. The originality closure ring 42 has an inner diameter D _i , which is sufficiently dimensioned so that during rotation in rotation d, the actuating cap 7 with its outer diameter D _a in the axial direction x in the tamper evident seal 42 can dive.

The 6 shows a perspective view of the closure element 2 and the course of the spiral contour 29 and the associated second thread 28 , the offset in the axial direction x parallel substantially the course of the helical contour 29 follows. After turning the actuating cap 7 about 180 ° bumps the guide cam 23 against a running in the axial direction x abutting edge 34 , which is another turn of the actuator cap 7 prevented in the rotation d. In this end position is the guide cam 23 in the axial direction x on the already mentioned Endanschlagswandabschnitt 32 on. The butt edge 34 goes to her the end stop wall section 32 opposite end at right angles into an enema 35 the other second thread 28 as well as the other spiral contour 29 of the double-threaded thread 12 above.

Between a spout 33 of the second thread 28 and the associated Endanschlagswandabschnitt 32 is a pawl 36 formed, which, after the guide cam 23 has moved across, sets up and a rotation of the actuator cap 7 prevented against the intended rotation d. The pawl 36 becomes out of the spiral contour 29 formed at a distance corresponding to a width b of the guide cam 23 to the abutting edge 34 with an undercut 37 is provided.

On an outside 47 is in the sleeve 3 an annular groove 48 placed in which on an inner wall 45 the originality closure ring 42 molded projections 46 (please refer 7 protrude). In the circumferential direction are evenly distributed in the annular groove 48 several blocking bars 49 arranged, which the annular groove 48 pause and twist the originality closure ring 42 in the direction of rotation d of the actuator cap 7 prevent. For this purpose, the projections 46 on its turning d the adjacent jetty 49 facing flank 50 a rectangular orientation to the inner wall 45 the originality closure ring 42 on.

LIST OF REFERENCE NUMBERS

1

container

2

closure element

3

shell

4

Front sleeve

5

lower opening

6

membrane

7

overcap

8th

cover wall

9

Bottom lid wall

10

torque tube

10a

lower end torque tube

11

chamber

12

thread

13

Weld

14

separating wedge

15

rising edge

16

pruning

17

contact area

18

Section contact area

19

collar wall

20

first threaded element

21

second threaded element

22

first thread

23

guide cam

24

Bottom guide cams

25

Side first thread

26

Ribs guide cams

27

invagination

28

second thread

29

spiral contour

30

Side second thread

31

support area

32

Endanschlagswandabschnitt

33

Spout second thread

34

impact edge

35

Inlet second thread

36

pawl

37

undercut

38

wall apron

39

Inside thread wall apron

40

container thread

41

Breaking point

42

Tamper-evident seal ring

43

Bottom tamper evident ring

44

Top wall apron

45

Inner wall tamper evident ring

46

Vorsprung originality closure ring

47

outside

48

Ring groove sleeve

49

blocking web

50

Flank projection

51

second tamper evident ring

52

bead

53

gap

b

Wide guide cams

d

rotation

D _i

Inner diameter quality sealing ring

D _a

Outer diameter actuating cap

S

Gradient [°]

x

axial direction

y

radial direction

Claims (39)

Cap for a container ( 1 ), comprising one on the container ( 1 ) attachable closure element ( 2 ), which is a sleeve ( 3 ), whose lower opening ( 5 ) of an impermeable membrane ( 6 ) is closed, an actuating cap ( 7 ), which a cover wall ( 8th ) and one on a lower side ( 9 ) the top wall ( 8th ) engaging, downwardly extending torque tube ( 10 ), and a substance-filled chamber ( 11 ) passing through the torque tube ( 10 ), the top wall ( 8th ), a section of the sleeve ( 3 ) and the membrane ( 6 ) is formed, wherein the closure element ( 2 ) and the actuating cap ( 7 ) by means of a thread ( 12 ) are helically movable relative to each other and the thread ( 12 ) first and second threaded elements ( 20 . 21 ), wherein the first threaded element ( 20 ) on the actuating cap ( 7 ) and the second threaded element ( 21 ) on the sleeve ( 3 ), characterized in that the first threaded element ( 20 ) from a guide cam ( 23 ) and the second threaded element ( 21 ) from a front side of the sleeve ( 3 ) arranged spiral contour ( 29 ) is formed, on which the guide cam ( 23 ) is supported. Closure cap according to claim 1, characterized in that the guide cam ( 23 ) an underside ( 24 ) having a parallel plane with the helical contour ( 29 ). Closure cap according to claim 1 or 2, characterized in that the guide cam ( 23 ) of a plurality of ribs arranged parallel to one another in the axial direction (x) ( 26 ) is formed. Closure cap according to claim 1 or 2, characterized in that the guide cam ( 23 ) by an invagination ( 27 ) the top wall ( 8th ) is formed. Closure cap according to one of claims 1 to 4, characterized in that the first threaded element ( 20 ) a first thread ( 22 ) and the second threaded element ( 21 ) one with the first thread ( 22 ) co-operating, second thread ( 28 ). Cap according to claim 5, characterized in that the first thread ( 22 ) and the second thread ( 28 ) with their sides facing each other ( 25 . 30 ) against each other. Closure cap according to one of claims 5 or 6, characterized in that the guide cam ( 23 ) in the axial direction (x) to the second thread ( 28 ) is spaced. Closure cap according to one of claims 5 to 7, characterized in that the first thread ( 22 ) and / or the helical contour ( 29 ) between the second thread ( 28 ) and the guide cam ( 23 ) is arranged. Closure cap according to one of claims 5 to 8, characterized in that the helical contour ( 29 ) the course of the first and / or second thread ( 22 . 28 ) follows. Closure cap according to one of claims 1 to 9, characterized in that the actuating cap ( 7 ) one on the top wall ( 8th ) and radial to the torque tube ( 10 ) spaced collar wall ( 19 ) having. Closure cap according to claim 10, characterized in that the collar wall ( 19 ) the torque tube ( 10 ) concentrically surrounds. Cap according to claim 10 or 11, characterized in that the guide cam ( 23 ) on the collar wall ( 19 ) and / or the torque tube ( 10 ) and / or the top wall ( 8th ) attacks. Closure cap according to one of claims 10 to 12, characterized in that the first thread ( 22 ) opposite the collar wall ( 19 ) in the direction of the torque tube ( 10 ) protrudes. Closure cap according to one of claims 5 to 13, characterized in that the second thread ( 28 ) in the radial direction (y) relative to the sleeve ( 3 ) protrudes. Closure cap according to one of claims 5 to 14, characterized in that the first thread ( 22 ) and / or the underside ( 24 ) of the guide cam ( 23 ) and / or the second thread ( 28 ) and / or the helical contour ( 29 ) has a pitch (S) of 5 ° to 30 °, more preferably 10 ° to 20 °. Closure cap according to one of claims 5 to 15, characterized in that the Spiral contour ( 29 ) at its in the axial direction (x) of the top wall ( 8th ) end facing a support area ( 31 ) with a slope (S) of 0 ° and / or with respect to the guide cam ( 23 ) has a concave shape. Closure cap according to one of claims 1 to 16, characterized in that the thread ( 12 ) is designed such that by turning the actuating cap ( 7 ) in a predetermined direction of rotation (d) the torque tube ( 10 ) with its lower end ( 10a ) in the axial direction (x) through the lower opening (x) 5 ) passes. Cap according to claim 17, characterized in that the predetermined direction of rotation (d) of the actuating cap ( 7 ) is directed counterclockwise. Closure cap according to one of claims 1 to 18, characterized in that the membrane ( 6 ) in the region of the lower opening ( 5 ) by means of a weld ( 13 ) on a front side ( 4 ) of the sleeve ( 3 ) is attached. Cap according to one of claims 1 to 19, characterized in that the torque tube ( 10 ) at its the membrane ( 6 ), lower end ( 10a ) at least one in the axial direction (x) above Ablösekeil ( 14 ) having. Cap according to claim 20, characterized in that the release wedge ( 14 ) counter to the direction of rotation (d) a circumferentially rising edge ( 15 ) and a subsequent cutback ( 16 ) having. Cap according to claim 21, characterized in that the rising flank ( 15 ) at its axial (x) projecting end with a contact area ( 17 ), which upon rotation of the actuating cap ( 7 ) in the direction of rotation (d), first line-like the membrane ( 6 ) and then from the front side ( 4 ) of the sleeve ( 3 ) takes off. Cap according to claim 22, characterized in that upon further rotation of the actuating cap ( 7 ) in the direction of rotation (d) in front of the contact area ( 17 ) section ( 18 ) of the rising edge ( 15 ) continuously the membrane ( 6 ) takes off. Closure cap according to one of claims 19 to 23, characterized in that after turning the actuating cap ( 7 ) the weld ( 13 ) with a circumferential angle of 160 ° to 200 °, particularly preferably 180 °, from the front side ( 4 ) is replaced. Closure cap according to one of claims 1 to 24, characterized in that the thread ( 12 ) a two-start movement thread with two first and second threaded elements ( 20 . 21 ). Cap according to claim 25, characterized in that the first threaded elements ( 20 ) and the second threaded elements ( 21 ) are each offset by 180 °. Cap according to claim 25 or 26, characterized in that the sleeve ( 3 ) two end-side helical contours ( 29 ) each having a Endanschlagswandabschnitt ( 32 ), which between a spout ( 33 ) of one of the second threads ( 28 ) and in the axial direction (x) extending abutment edge ( 34 ) is arranged, wherein the abutting edge ( 34 ) end an inlet ( 35 ) of the other second thread ( 28 ) and its associated spiral contour ( 29 ) cuts. Cap according to claim 27, characterized in that on at least one of the two Endanschlagswandabschnitte ( 32 ) thereby a pawl ( 36 ) is formed such that the Endanschlagswandabschnitt ( 32 ) at a distance equal to or greater than a width (b) of the guide cam ( 23 ) to the nearest edge ( 34 ) and with an undercut ( 37 ) is provided. Closure cap according to one of claims 25 to 28, characterized in that both of the first threads ( 22 ) span a circumferential angle of 210 ° to 240 °, more preferably from 215 ° to 235 °, most preferably from 220 ° to 230 °. Closure cap according to one of claims 25 to 29, characterized in that both of the second threads ( 28 ) span a circumferential angle of 100 ° to 140 °, more preferably from 115 ° to 125 °. Closure cap according to one of claims 1 to 30, characterized in that the closure element ( 2 ) at its the container ( 1 ) facing side with a wall apron ( 38 ) is formed, which the sleeve ( 3 ) coaxially and in the direction of the container ( 1 ) surmounted. Cap according to claim 31, characterized in that on one of the sleeve ( 3 ) facing side of the wall apron ( 38 ) an internal thread ( 39 ) which is in operative engagement with a container thread ( 40 ) can be brought. Cap according to claim 32, characterized in that the thread ( 12 ) one harder material and / or a greater pitch than the internal thread ( 39 ) having. Closure cap according to one of claims 10 to 33, characterized in that on the collar wall ( 19 ) by means of predetermined breaking points ( 41 ) a tamper evident ring ( 42 ) is attached. Cap according to claim 34, characterized in that the tamper-evident closure ring ( 42 ) with its underside ( 43 ) on a top side ( 44 ) of the wall apron ( 38 ) rests. Cap according to claim 34 or 35, characterized in that the tamper-evident closure ring ( 42 ) an inner diameter (D _i ) and the actuating cap ( 7 ) has an outer diameter (D _a ), wherein the inner diameter (D _i ) is greater than the outer diameter (D _a ) and the actuating cap ( 7 ) during the helical movement in the tamper evident seal ( 42 ) in the axial direction (x). Cap according to one of claims 34 to 36, characterized in that on an inner wall ( 45 ) of the tamper-evident closure ring ( 42 ) a plurality of circumferentially distributed projections ( 46 ) provided in one on the outside ( 47 ) of the sleeve ( 3 ) formed annular groove ( 48 ) intervene. Cap according to claim 37, characterized in that in the annular groove ( 48 ) a plurality of circumferentially distributed blocking webs ( 49 ) are formed. Cap according to claim 38, characterized in that in the predetermined direction of rotation (d) in the direction of the blocking webs ( 49 ) flanks ( 50 ) of the projections ( 46 ) perpendicular to the inner wall ( 45 ) are aligned.

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