WO2014102010A1

WO2014102010A1 - Container and container with screw cap

Info

Publication number: WO2014102010A1
Application number: PCT/EP2013/003919
Authority: WO
Inventors: Arne Wiese; Stefan Amariglio; Frank Haesendonckx
Original assignee: Khs Corpoplast Gmbh
Priority date: 2012-12-28
Filing date: 2013-12-27
Publication date: 2014-07-03
Also published as: DE102012025208A1

Abstract

The invention relates to a container which has at least one opening, wherein a screw thread (11), a safety ring (12) and a manipulating contour are located in the region of the opening of the container. A safety structure of a screw cap that seals the opening engages on the safety ring. When in use position, the manipulating contour allows the container to be manipulated by manipulating means, e.g. a blow moulding machine. The diameter of the safety ring (12) is greater than the outer diameter of the screw thread (11). The manipulating contour is formed from the safety ring (12) and a manipulating ring (13) that is arranged between the safety ring (12) and the screw thread (11). The invention further relates to a container of this kind with a screw cap.

Description

Container and container with cap

Description:

The invention relates to a container having at least one opening, wherein in the region of the opening of the container, a closure thread, a guarantee ring and a handling contour are arranged, and wherein the diameter of the guarantee ring is greater than the outer diameter of the closure thread. Furthermore, the invention relates to a container with a closure cap.

In the prior art in particular blow-molded plastic bottles with the features mentioned are known. In the production of such bottles, a preform is first produced by injection molding, wherein the preform is already finished in the area of the container opening and remains unchanged in this area in the subsequent blow molding process. As a container in the context of this invention, therefore, the said preforms of blow-molded plastic bottles are expressly considered.

During the manufacture and filling of blow-molded plastic bottles, these are mechanically conveyed, wherein the promotion often takes place along curved conveying paths and may include lifting, turning and pivoting movements. During these conveying steps, the blow-molded plastic bottles or the preforms must be kept free of play in order to ensure safe operation of the machine.

CONFIRMATION COPY The holding of the container is usually carried out via clamping gripper, which detect the container in the region of the opening below the guarantee ring. To improve the handling, the containers in the prior art are equipped with a further ring below the guarantee ring, which is usually referred to as neck ring. The guarantee ring and the neck ring form the handling contour.

The guarantee ring works together with a guarantee structure of a cap. This interaction is intended to prevent a sealed container can be opened and re-closed unnoticed. When the cap is screwed on, e.g. a guarantee structure arranged at the open end as a peripheral edge of the cap is visibly deformed, e.g. by radial expansion and thereby tearing when sweeping over the guarantee ring, or a designated annular element of the cap remains hanging when unscrewing the cap on the guarantee ring and is separated from the lid. To perform this function, the guarantee ring is therefore formed with a diameter which is greater than the outer diameter of the closure thread.

In contrast, the neck ring does not cooperate with the container lid, but serves the container handling. Other common names for the neck ring are also support ring, support ring or retaining ring. While the neck ring thus allows easy handling of the container, it contributes not insignificantly to the material consumption in the container production

Therefore, DE 20 2007 009 983U1 proposes, instead of a neck ring, to provide a groove for improving the handling of containers, wherein the groove is arranged between the guarantee ring and the thread in the container exterior. However, this groove requires a modified inner contour of the opening region of the container, wherein the free inner cross section is reduced in the region of the groove. This is disadvantageous for the filling of the container.

It is therefore an object of the present invention to provide a container, the material requirement is reduced in the region of the opening, without the handling of the container or the free inner cross-section is adversely affected. This object is achieved according to the invention by a container having at least one opening, wherein in the region of the opening of the container a closure thread, a guarantee ring and a handling contour are arranged, and wherein the diameter the Garantieringes is greater than the outer diameter of the closure thread, which is further developed in that the handling contour of the guarantee ring and a arranged between the guarantee ring and the closure thread handling ring is formed. This object is further achieved by a container as characterized above with a closure cap.

By means of this handling ring arranged between the closure thread and the guarantee ring, the handling of the containers, as known in the art, can take place on a handling contour of two adjacent rings, while the material requirement of the container is significantly reduced by omission of the relatively large neck ring. It is deliberately called this handling ring serving as a handling ring, and not as a neck ring, namely to allow a better distinction from the neck ring of the prior art. Both serve but container handling and fulfill in this regard the same function.

According to one embodiment of the invention, the outer diameter of the handling ring is not larger than the outer diameter of the guarantee ring. This ensures that the guarantee structure of the closure cap, which cooperates with the guarantee ring, can easily be guided over the handling ring when the container is closed, and only after the guarantee ring has been swept, the container is sealed off.

Preferably, the outer diameter of the handling ring is not larger and particularly preferably smaller than the outer diameter of the closure thread. This ensures that the cap can be easily screwed onto the container despite the additional handling ring. Particularly preferred is the outer diameter D _{H of} the handling ring between D _B ⁺ (D _G -D _B ) xO, 4 and D _B + (D _G -D _B ) xO, 6, where D _{G is} the outer diameter of the closure thread and D _B of Outer base diameter of the opening portion of the container is. In other words, therefore, the handling ring protrudes by 0.4 to 0.6 times the height of the thread of the closure thread over its thread root.

According to a further embodiment of the invention, the handling ring is then executed directly on the closure thread. Immediately thereafter, in the sense of the invention, it is understood that the shortest distance between the handling ring and a thread of the closure thread is smaller than the thread pitch of the thread Closure thread. By this measure, it is ensured that in relation to the version according to the prior art unchanged length of the cap, the length of the closure thread and thus its holding force is not or only slightly reduced.

According to a further embodiment of the invention, there is a clear distance of at least 1.5 mm, preferably at least 2 mm, between the handling ring and the guarantee ring. As a clear distance is understood in the context of the invention, the distance between each of the other ring facing edges of the two rings. With this configuration, the container can be securely detected and conveyed between the handling ring and the guarantee ring by a clamping gripper.

The invention will be explained in more detail with reference to some figures. Show it:

1 shows a preform for blow-molded plastic bottles according to the prior art,

Fig. 2: the opening area of a container according to the invention, and

Fig. 3 shows the opening area of a container according to the invention with screwed cap.

1 shows a preform 1 for blow molded plastic bottles, as known from the prior art. The preform 1 comprises a main body 2 and an opening region 3. The preform 1 has an outer wall 4, which in the region of the main body 2 has a greater wall thickness than in the opening region 3, even after the blow molding and the concomitant decrease in the wall thickness still to have sufficient strength. The opening portion 3 is already finished in its final shape before the blow molding and has a closure thread 5 only indicated in the figure, a guarantee ring 6 and a neck ring 7. The guarantee ring 6 and the neck ring 7 together form the handling contour. In this case, the guarantee ring 6 is arranged on the opening side of the neck ring 7, that is to say the guarantee ring 6 is located between the neck ring 7 and the closure thread 5.

Figure 2 and Figure 3 show the Öffnungsbe rich 10 according to the invention molded container. Again, in each case a thread 11 and a guarantee ring 12 can be seen, in Arrangement and size may correspond to the state of the art. Immediately below the thread 11 (FIG. 2) or at a certain distance (FIG. 3), a handling ring 13 is arranged, which - similar to the neck ring of FIG. 1 known from the prior art - serves to handle the container during manufacture , Handling ring 13 and guarantee ring 12 form in the embodiments of Figure 2 while the required handling contour. The rings can also be formed as interrupted rings.

In order to enable reliable handling of the container, a distance of approximately 2 mm is provided between the handling ring 13 and the guarantee ring 12. Characterized in that the handling ring 13 is disposed immediately below the thread 1 1, the opening portion 10 does not need to be compared to the prior art, or at least not significantly extended. For closing the container, a lid 17, cut in only in FIG. 3, and shown only in the left half of the picture, is screwed onto the opening region 10 of the container. This cover 17 typically has an inwardly facing guarantee structure 18 which cooperates with the guarantee ring 12 of the container, and e.g. is visibly deformed or destroyed during the first opening of the lid 17. In the undeformed state, the guarantee structure 18 protrudes inwards beyond the diameter of the guarantee ring 12 and is elastically deformed outwards when the lid 17 is closed. In the illustrated example of Figure 3, this warranty structure is formed with a predetermined breaking point 19 and is located with a circumferential bearing surface 20 on the bottom side of the guarantee ring 12 facing away from the opening. The opening facing away ring area below the breaking point should remain during unscrewing the lid 17 of this release and below the guarantee ring 12. In this way it can be seen whether or that the lid 17 has been opened.

In order not to unnecessarily burden the guarantee structure 18 when closing the cover 17, the diameter of the handling ring 13 in the exemplary embodiment of FIG. 2 is smaller than the outer diameter of the threads 14 of the thread 11. The guarantee structure 18 of the cover 17 must be in any case external to this outer diameter be widened. In the embodiment of Figure 3, the handling ring 13 and the thread 11 have an approximately equal outside diameter.

In order nevertheless to be able to ensure safe handling of the container, the diameter of the handling ring 13 must be sufficiently above the outer one Base diameter 15 of the opening portion 10 of the container protrude. According to the embodiment of FIG. 2, the diameter of the handling ring 13 corresponds approximately to the mean value between the outer diameter of the threads 14 of the thread 11 and the outer base diameter 15.

Claims

claims:

1 . Container having at least one opening, wherein in the region of the opening of the container, a closure thread (1 1), a guarantee ring (12) and a handling contour are arranged, wherein the guarantee ring cooperates in the use position with a guarantee structure of a closure cap and the handling contour in the position of use of the container handling Handling agent eg a blow molding machine is used, and wherein the diameter of the Garantierings (12) is greater than the outer diameter of the closure thread (1 1), characterized in that the handling contour of the guarantee ring (12) and between the guarantee ring (12) and the closure thread (1 1) arranged handling ring (13) is formed.

2. Container according to claim 1, characterized in that the outer diameter of the handling ring (13) is not greater than the outer diameter of the guarantee ring (12).

3. Container according to claim 2, characterized in that the outer diameter of the handling ring (13) is not greater than the outer diameter of the closure thread (1 1).

4. Container according to claim 3, characterized in that the outer diameter of the handling ring (13) is smaller than the outer diameter of the closure thread (1 1).

5. A container according to claim 4, characterized in that the outer diameter D _{H of} the handling ring (13) between D _B + (D _G -D _B ) xO, 4 and DB + (D _G -D _b ) XO, 6, wherein D _{G is} the outer diameter of the closure thread (1 1) and D _B of Outer base diameter of the opening portion (10) of the container is.

Container according to one of the preceding claims, characterized in that the handling ring (13) is arranged directly adjacent to the closure thread (1 1).

Container according to one of the preceding claims, characterized in that between the handling ring (13) and the guarantee ring (12) there is a clearance of at least 1, 5 mm, preferably at least 2 mm.

Container according to one of the preceding claims with a closure cap 17.