EP3704032A2

EP3704032A2 - Container

Info

Publication number: EP3704032A2
Application number: EP19701090.3A
Authority: EP
Inventors: Werner KÜNZLER
Original assignee: Holopack Verpackungstechnik GmbH
Current assignee: Holopack Verpackungstechnik GmbH
Priority date: 2018-02-09
Filing date: 2019-01-18
Publication date: 2020-09-09
Anticipated expiration: 2039-01-18
Also published as: JP7407717B2; CN111683878B; KR20200118041A; MX2020008351A; US11299331B2; BR112020012726A2; BR112020012726B1; JP2021512819A; EP3704032B1; EP3704032C0; DE102018001102A1; KR102677215B1; US20200399033A1; WO2019154608A3; WO2019154608A2; CN111683878A

Abstract

The invention relates to a container consisting of a plastic material, having a container body (1) for receiving a fluid and a neck part (7) adjoining the container body (1), said neck part having at its free end a discharge opening for fluid, which is closed by a head part (11) and covered by a cap (19). The invention is characterized in that the cap (19) interacts with individual blocking elements via a securing ring (21) in such a way that, from a mounting position of the cap (19), rotational movements in both directions of rotation by a predefinable stretch are made possible, and that, in the event of a further screwing-on movement over the predefinable stretch, a part of second blocking elements completely passes over associated first blocking elements and, in the process, the head part (11) is penetrated by means of the respective opening part of the cap (19), and in that, in the event of a subsequent unscrewing movement of the cap (19) for the purpose of releasing the discharge opening, the securing ring (21) is detached from the cap (19) and secured on the neck part (7) at least at times via at least one blocking element against rotation in the unscrewing direction.

Description

Container

The invention relates to a container, consisting of a Kunststoffmate-, with a container body for receiving a fluid and with a subsequent to the container body neck portion having at its free end a discharge opening for the fluid, which is closed by a head part and of a Cap is covered, the movement penetrates at a Aufschraub movement in a rotational direction by means of at least one opening part, approximately via a connecting device with a hedging ring, forming a structural unit, is connected and after loosening the connecting device in the context of a Abschraubbewegung in the opposite direction and upon removal from the container body releases the discharge opening for a fluid removal on the penetrated head part, wherein on the neck portion outwardly projecting individual Blockierele elements are present, the zusammenw together with the retaining ring inwardly projecting individual second blocking elements Erken that during rotational movements of the assembly from a Aufsetzstellung on the neck part out the connection device is released.

Plastic containers of this type are known. In a simple and inexpensive manner, such containers can be by means of a blow molding, filling and closing procedure (BFS) method hersteilen, as is known in the art under the trademark bottelpack ^®. The assembly of cap and circlip can preferably be produced by injection molding. As a relevant prior art document WO 2014/1 69979 A1 discloses a container of the type mentioned in the introduction.

In particular, if such containers are good for receiving a sensitive filling, such as food or pharmaceutical or cosmeti cal substances, provided the circlip, which is separated by loosening the connecting means of the cap when the se from the Aufsetzstellung the unit out ie for the first-time use of the container is rotated, a special meaning. Since the detachment of the retaining ring from the remaining part of the assembly provides a clear indication that actuation of the opening / closing system has taken place, the retaining ring fulfills the function of a quality assurance that indicates possible manipulation or even prevents it.

Starting from this prior art, the invention has the task to provide a container of the type considered, which, while maintaining the advantages achieved in the prior art, is characterized by an improved user-friendliness.

According to the invention this object is achieved by a container having the features of claim 1 in its entirety.

According to the characterizing part of claim 1, a significant feature of the invention is that the blocking elements cooperate in such a way that rotational movements in both directions of rotation are made possible from the placement position by a predeterminable travel distance, that in a further screwing movement of the assembly over the before renable In addition, a part of the second blocking elements, the Ers th blocking elements completely overrun while the headboard means the respective opening part of the cap is penetrated and that in a subsequent unscrewing movement of the cap in order to release the discharge opening, the connecting device dissolved and the locking ring is at least partially secured via at least one blocking element against rotation on the neck part.

By virtue of the fact that in the case of the invention, in the set-up position, the assembly formed by the cap and securing ring, i. in the delivery state of the container, the user for the first time opening a distance for rotational movements is available, before it comes to loosening the connec tion device on the circlip, the opening process in comparison to said, known container solution safer and thus user-friendly. In the known container, the blocking elements on the container neck part and on the retaining ring are miteinan in such a way that virtually no free rotation angle is available before it comes to a release of the connecting device, ie the detachment of the retaining ring.

For the opening operation by penetrating the head part, the user has to turn the cap in the direction of rotation that generates the screwing motion. In this case, there is a risk that he finished the rotational movement before the complete piercing of the head part and the cap by unscrewing off, without the container is actually open. The danger that the user after removing the cap and detached quality assurance remains a closed container is prevented in the inven tion because the user for the head part penetrating Aufschraubbewegung by the possibility of overriding Blockie relementen a distance is available in which it to complete penetration of the opening part of the cap on the head part comes. As in the subsequent, vorgenomme nen by the user to remove the cap NEN rotation in unscrewing the circlip against rotation on Hal part of the container is secured, is now released by loosening the connec tion device quality assurance, so that after the screw off the cap of the container to the user in safely open to stand is available.

In advantageous embodiments, the first blocking elements of the neck portion are formed by the ends of ramps which protrude beyond the outer circumference of the neck portion, wherein the second locking elements of the retaining ring consist of individual, inclined webs on the inner peripheral side of the retaining ring. While the ramps allow the second blocking elements to be driven over when rotating in the screwing-on direction, the ends of the ramps simultaneously form blocking surfaces, which secure the Si cherungsring against rotation in the unscrewing after passing through contact with the respective second blocking element.

Advantageously, the arrangement can be made such that the second blocking elements of the retaining ring are combined together to form fixing groups and that every second blocking element occupies a distance to the further second blocking element of a fixing group that is equal to or greater than the longitudinal extent of a ramp in the circumferential direction tion of the neck seen.

The blocking elements of the fixing groups are positioned on the circlip with on part so that during the Aufschraubbewegung the cap from the Aufsetzstellung out a ramp of the neck adjacent angeord designated blocking element of a fixing group slips along the ramp until the ramp, completely overrun by this blocking element, in rest engagement with the associated fixing group of second blocking elements comes. In advantageous embodiments, the neck portion in the direction of the container body forms an annular body which carries the individual ramps, which are arranged equidistant from each other along the outer circumference of the annular body, wherein the annular body on its side facing the container body abge a stop surface for the free end of the cap has on, which comes into contact with the stop surface as soon as the respective opening part has penetrated the head part.

During the unscrewing movement of the cap in the direction of the abutment surface, the cap captures the securing ring via the connecting device, which moves axially along the annular body coaxially with the longitudinal axis of the container body until the cap abuts against the annular body.

Advantageously, the neck portion between the head and ring body on a more common thread, which, designed as an external thread, cooperates with a female thread on the interior side of the cap for the up and Abschraub processes. With particular advantage, in this case the Au ßengewinde have a sawtooth shape, which allows a simple attachment of the cap and circlip existing component by Aufschnap pen on the external thread, but secures the assembly against a directed away from the neck portion axial movement.

In advantageous embodiments, the head part, cylin drical formed, connects via a removal cone to the external thread of the neck portion, the free end face, designed in the manner of a membrane, from the opening portion in the form of a dome in the cap is penetratable.

With particular advantage, the cylindrical outer peripheral surface of the head part can serve as a guide surface for a guide body of the cap, which includes the mandrel edge. As an assembly aid in the attachment of the closure system on the container, the circlip outer peripheral side have a mark that can be brought with a mark on the container body in accordance that the unit assumes its predetermined position on the neck part, in which the fixing groups of the circlip in the peripheral region between the ramps of the neck portion are freely movable in opposite directions of rotation back and forth.

The connecting device between the circlip and the cap can be realized via predetermined breaking points, which act as projecting predetermined breaking webs with a reduced cross-section on the outer circumference of the cap until the connection device is released.

The assembly of the cap, the retaining ring and the connection device may be formed from a one-piece plastic molded part, in particular injection molded part.

In particularly advantageous embodiments, the circlip outside the fixing groups and the predetermined breaking webs on the inner peripheral side supporting webs, the ring ring, preferably from an upper annular surface of the hedging starting, extend axially to a length such that in the placement position of the assembly below the support webs a traversing space remains free for the ramps of the neck portion within the circlip.

Advantageously, the arrangement may be such that with turning of the container body and released container opening of the retaining ring from the neck portion slides down and dissolves from the container, which may be beneficial for Hygienegrün out. Furthermore, the arrangement may be such that the Außengewin de of the neck portion is penetrated parallel to the longitudinal axis of the container body at least one point of a longitudinal channel, which preferably crosses the thread path and serving the air exchange, inhibiting the up and unscrewing operations for the cap on the neck part allows.

In a particularly advantageous manner, the filled container body can be made together with the neck and head part by means of a blow molding, filling and closing process forth.

The invention with reference to an embodiment shown in the drawing is explained in detail.

Fig. 1 is a side view of the embodiment of the inventive container, wherein a cap and circlip existing assembly is shown partially sliced in the longitudinal direction th; Fig. 2 is a comparison with FIG. 1 drawn on a larger scale

Longitudinal section of the cap and retaining ring assembly;

Fig. 3 and 4 are broken side views of the adjoining the container body neck portion of the embodiment, wherein two offset by 90 ° to each other rotational positions of the Behäl age are shown;

Fig. 5 is a plan view of the container with removed assembly; Fig. 6 is a perspective oblique view of the neck portion without discontinued assembly;

FIG. 7 is a plan view, on a larger scale, of the embodiment of the container; FIG. and

FIGS. 8 and 9 show simplified functional diagrams in which, in order to clarify the interaction of blocking elements, the structural unit is shown in the set-up position or in the position rotated relative to the neck portion.

The embodiment of the container according to the invention shown in FIG. 1 has a container body 1 which has a substantially circular cylindrical shape with a vertical axis 3. At its lying in the figure above and in diameter tapered end portion 5 of the Kör pers 1 is followed by a neck portion 7, whose details are most clearly Figs. 3 to 6 can be removed. As shown, adjoins the free end of the neck portion 7, a tapered removal cone 9, which turns rum in a circular cylindrical head part 1 1. The free end face of the head part 1 1 is closed by a with the head part 1 1 integral membrane 1 3, which is penetrable to open the container. As can also be seen in FIGS. 3 to 6, the transition from the end region 5 of the container body 1 to the neck part 7 is formed by a circular-cylindrical annular body 15 which has a larger diameter than the end area of the neck part 7 which subsequently adjoins it.

As an opening system, by means of which the container 1 3 can be opened and closed again by penetrating the membrane, a construction unit 1 7 is provided, to which a cap 19 is one. As most clearly shown in Fig. 2, the cap 1 9 has the shape of a pot with in the figure overhead, closed pot bottom 23 and a side wall 25, which is almost circular cylindrical, more precisely, tapered from the bottom end of the pot, with only a very small cone angle, Topfbo the 23 extends. A constructional unit 1 7 completing circlip 21 is detachably connected via predetermined breaking points 27 with the lower edge of the cap 19. As shown in FIG. 7, the predetermined breaking points 27 are formed by a ring of web bridges 29, the insurance ring 21 from the upper edge of the hedging to the lower edge of the cap 1 9 extend, with the web bridges 29 to the junction with the cap 1 9 out rejuvenate. As also shown in FIG. 7, the cap 1 9 on the outside a longitudinal corrugation 31, which in Fig. 7, for clarity, is only partially quantified.

To form a screw connection between structural unit 1 7 and neck part 7, the cap 1 9 has an internal thread 33 and the neck part 7 has an external thread 35 adjoining the removal cone 9. The threads of the external thread 35 have a sawtooth shape, so that the cap 1 9 with its internal thread 33, without rotational movement, by snap on with the external thread 35 can be engaged. So that the placement and unscrewing and unscrewing operations he can follow, for an air exchange by chamfering threads on the external thread 35, a longitudinal channel 37 (Fig. 4 and 6) is formed. As an opening part for penetrating the membrane 1 3, a mandrel 39 protruding coaxially from the inside of the pot bottom 23 of the cap 19 (FIG. 2) is provided, which is surrounded by a guide body 41, which has the shape of a coaxial hollow cylinder. In this arrangement, the circular cylindrical peripheral surface of the head part 1 1 in cooperation with the guide body 41 forms an axial guide for the cap 1.

As part of a quality assurance, the opening means of the container on the annular body 1 5 of the neck portion 7 as the first blocking elements on three equiangularly spaced ramps 43 which protrude beyond the outer circumference of the annular body 1 5 and increase in the same direction, in viewing direction corresponding to FIG. 5, to an end 44. This extends in a radial plane and thereby forms the abutment surface of the first blocking elements. Fig. 7, in which the structural unit 1 7 is shown separately and in plan view, and Fig. 8 and 9, show the formation of the retaining ring 21 associated second locking elements of the quality assurance. As shown, the second blocking elements are formed by three pairs of locking bodies 47, each of which forms a locking group 49. The locking body 47 projecting obliquely from the inner circumference of the securing ring 21 in each case form a blocking surface 51, which is opposite to the ends 44 of the ramps 43. In the fixing groups 49, which are arranged at equal angular intervals from each other, the measured distance in the circumferential direction between the locking bodies 47 is slightly larger than the length of the ramps 43 in the circumferential direction. As shown in FIGS. 2 and 7, the assembly 1 7 is completed by three equiangularly spaced support webs 53, which, starting from the OBE ren edge of the locking ring 21, in the axis 3 parallel direction on the inside of the retaining ring 21 only about extend over half the axial length of the retaining ring 21, so that below the support webs 53 space for rotational movements of the ramps 43 remains free.

As shown only in Fig. 8 and 9, located on the outer circumference of the locking ring 21, a mark 56 in the form of a notch, the mounting position of the assembly during assembly of the unit 1 7 by alignment with a (not shown) marking on the container body 1 7, in which, as shown in Fig. 8, the ramps 43 are in the free peripheral area between successive fixing groups 49. As further markings are as visual marks on the top of the cap 19 direction arrows 59 and 61st

For the opening operation, the user turns the cap 1 9 in accordance with the first direction of rotation arrow 59 from the set position (Fig. 8) out in Unscrewing direction. In this case, the mandrel 39 wrestles the membrane 1 3 of the head part 1 1 and the lock body 47 advancing in the direction of rotation traverses the respective first blocking element by sliding on the ramp 43 until the ramp 43 engages in detent engagement with the respective locking group 49 comes and the lower end face of the cap 1 9 comes to rest against a formed by the lower edge of the annular body 15 stop surface 54. For the removal of the unit 1 7 in order to release the container opening formed by the mandrel 39, the user turns the cap 19 in the direction indicated by the second rotary arrow 61 unscrewing, wherein the locking ring 21 in cooperation with the respective locking surface 51 of the locking body 47 of the second blocking elements against turning is gesi chert, so that it comes to a tearing off of the predetermined breaking points 27 and thus to replace the quality assurance. After removing the cap 1 9 the user is the container in the open state for dispensing the contents of the container available. When turning the container body 1 to remove fluid slides now free locking ring 21 from the neck part 7 down. Furthermore, the container can be closed again by means of the cap 1 9 in case of need.

Claims

Patent claims

1 . Container, consisting of a plastic material, with a Behäl terkörper (1) for receiving a fluid and with a to the container body (1) adjoining neck portion (7) having at its free end a discharge opening for the fluid from a headboard (1 1) is closed and covered by a cap (1 9) which penetrates the head part (1 1) during a screwing movement in a direction of rotation by means of at least one opening part (39), which is connected via a connecting device (27) to a securing ring (21 ), with this a structural unit (1 7) forming, is connected and after loosening the connecting device (27) in a screwing movement in the opposite direction and from acceptance of the container body (1) the discharge opening for a Fluident acceptance over the penetrated headboard (1 1) releases, wherein on the neck portion (7) outwardly projecting individual first blocking elements (43) are present with the on the retaining ring (21) to in NEN protrude the individual second blocking elements (47) act together such that upon rotation of the assembly (1 7) from a Aufsetzstellung on the neck part (7) out the Verbindungseinrich device (27) is released, characterized in that the Blockie relemente (43 , 47) such interaction that from the placement set out rotational movements in both directions of rotation by a predetermined distance are possible that in a further unscrewing movement of the assembly (1 7) over the predeterminable path stretch out part of the second blocking elements (47) the first Blocking elements (43) completely passed over while the head part (1 1) by means of the respective opening part (39) of the cap (19) pene trated, and that in a subsequent Abschraubbewe movement of the cap (19) for the purpose of releasing the discharge opening, the Ver binding device (27) and the locking ring (21) at least temporarily secured via at least one blocking element (47) ge rotation in Abschraubrichtung on the neck portion (7).

2. Container according to claim 1, characterized in that the first blocking elements of the neck portion (7) by the ends (44) of ramps (43) are formed, which project beyond the outer circumference of the neck portion (7), and that the second blocking elements of the retaining ring consist of individual, inclined webs (47) on the inner peripheral side of the retaining ring (21).

3. Container according to claim 1 or 2, characterized in that the second blocking elements (47) of the retaining ring (21) in pairs to set groups (49) are summarized and that each two te blocking element (47) to the further second blocking element (47) of a Fixing group (49) occupies a distance which is equal to or greater than the longitudinal extent of a ramp (43) seen in order circumferential direction of the neck portion (7).

4. Container according to one of the preceding claims, characterized in that during the Aufschraubbewegung the cap (19) from the Aufsetzstellung out of a ramp (43) of the neck portion (7) be adjacently arranged blocking element (47) of a fixing group (49) along the ramp (43) slides on until the ramp (43), of the sem blocking element (47) completely run over, in latching A handle with the associated fixing group (49) of second blocking elements (47) comes.

5. Container according to one of the preceding claims, characterized in that the neck part (7) in the direction of the container body (1) ei nen ring body (15) is formed, which carries the individual ramps (43) which are equidistant from each other along the outer circumference of Ring body (15) are arranged, and that the annular body (15) on its ner the container body (1) facing away from a stop surface (54) for the free end of the cap (19) which comes into contact with the stop surface (54) as soon as the respective opening part (39) penetrates the head part (1 1) did ,

6. Container according to one of the preceding claims, characterized in that during the unscrewing movement of the cap (19) in Rich tion of the stop surface (54), the cap (19) the securing ring (21) via the connecting means (27) entrains, the coaxial to the longitudinal axis (3) of the container body (1) in the direction of the same axially along the annular body (15) moves so long until the cap (19) abuts the annular body (15).

7. Container according to one of the preceding claims, characterized in that the neck part (7) between the head part (1 1) and ring body (1 5) has a multi-start thread designed as an external thread (35) with an internal thread (33) the interior side of the cap (19) cooperates for the screwing and unscrewing operations.

8. Container according to one of the preceding claims, characterized in that the head part (1 1), cylindrically formed, via a removal cone (9) to the external thread (35) of the neck portion (7) connects, the free end face, in the Type of membrane (1 3) is formed, from the opening part in the form of a dome (39) in the cap (19) is penetratable.

9. Container according to one of the preceding claims, characterized in that the cylindrical outer peripheral surface of the head part

(1 1) serves as a guide surface for a guide body (41) of the cap (19), which comprises the mandrel (39) at the edge.

10. Container according to one of the preceding claims, characterized in that the retaining ring (21) on the outer peripheral side a Mar- marking (56) which can be brought into conformity with a marking on the container body (1) in such a way that the structural unit (1 7) on the neck part (11) assumes its predeterminable seating position, in which the securing groups (49) of the securing ring ( 21) in the peripheral region between the ramps (43) of the neck portion (7) are guided freely in gegenläu figen directions of rotation to and fro.

1 1. Container according to one of the preceding claims, characterized in that the connecting device between locking ring (21) and cap (19) via predetermined breaking points (27) is realized, the ßenumfang of the cap (19) as a projecting predetermined breaking webs with reduced cross-section to the release attack the Verbindungseinrich device.

12. Container according to one of the preceding claims, characterized in that the structural unit (1 7) from the cap (1 9), the hedging ring (21) and the connecting device (27) from a one-piece plastic molding, in particular injection molded part , is formed.

1 3. A container according to any one of the preceding claims, characterized in that the retaining ring (21) outside the Festlegegrup groups (49) and the predetermined breaking webs (27) on the inner peripheral side support webs (53), preferably cherungsringes of an upper annular surface of the Si (21) proceeding, extend axially up to a length such that in the placement position of the unit (1 7) below the support webs (53) a traversing space for the ramps (43) of the neck portion (7) within the retaining ring (21) free remains.

14. Container according to one of the preceding claims, characterized in that with turning of the container body (1) and freigege Bener container opening of the retaining ring (21) slides from the neck portion (7) ago and dissolves from the container.

1 5. A container according to any one of the preceding claims, characterized in that the external thread (35) of the neck portion (7) parallel to the longitudinal axis (3) of the container body (1) at at least one point of a longitudinal channel (37) is penetrated, the preferably the

Threaded web crosses and serving the air exchange, without inhibition, the Aufraubern and unscrewing operations for the cap (1 9) on the neck part (7) allows.

1 6. Container according to one of the preceding claims, characterized in that the filled container body (1) together with the neck (7) and head part (1 1) is made by means of a blow molding, filling and closing process.