DE202009015668U1 - Container for holding liquids - Google Patents

Abstract

Container for containing liquids with a lid (2) for closing a container opening (3) and a connection (4) between the container (1) and the lid (2), wherein the container (1), the compound (4) and the lid (2) forming a part made of plastic, characterized in that at least the lid (2) is connected directly to the container opening (3) on the container wall via a connection (4) which is a toggle closure in the form of a film hinge, is formed that the connection (4) with the lid (2) by injection molding on the container (1) is formed, that the container (1) is spent in a blow mold by applying pressure medium in the final shape and that the lid (2) over or in the container opening (3) can be pressed.

Description

The The invention relates to a container for holding liquids with a lid for closing a container opening and a connection between the container and the lid, wherein the container, the connection and the lid form a part, which is made of plastic.

A container of the generic type is from the DE 44 12 657 A1 known. The container specified there is designed in particular as a windscreen washer tank for motor vehicles and has a neck-shaped short container opening with an undercut edge. From the material of the housing wall, a connection with a lid at the end is formed, which is aufdrückbar on the container opening for closing. The connection ensures that the lid can not be removed. To produce the container with lid, an extruded plastic tube between two pressing tool halves, which have mutually facing recesses arranged. In the extruder remote hose end a mandrel is introduced. The extruder-side and blasdornseitigen ends of the tube are pressed gas-tight between the pressing tool halves, being formed in the region of the blasdornseitigen hose end in Trennnahtbereich the two pressing tool halves due to a introduced in at least one pressing tool half recess from the hose, the lid and the connection. The tube is widened by blowing egg nes gas through the gas pin against the wall of the recess of the two pressing tool halves. The pressing tool halves are opened and the double-layered plastic edge is separated along the blast mandrel side of the container. The lid and the connection are formed by pressing in the bladder-side tube end by means of depression in both pressing tool halves. The connection is intended as a loose connection, it has no hinge function.

From the EP 0 247 566 B2 For example, there is known a returnable, transparent, refillable, stress cracking resistant container which is blow molded and biaxially oriented from a preform and is made of polyethylene terephthalate (PET), the container having a container body comprising a transparent, biaxially oriented sidewall and a container rigid, one-piece bottom and a neck for receiving a closure. Such PET bottles are well known in various surface shapes. The preform is preformed in an injection mold and then inserted into a blow mold in which gas is introduced via a blow mandrel into the shaped closure part for shaping the wall of the container in the viscous, hot state of the preform. A screw cap can be screwed onto the closure part provided as a screw cap.

It It is also known that cosmetic products in plastic bottles be bottled, which are produced in Blastechnik. On the container openings, which are drawn from Necks are formed, which formed when extruding the film be used to accommodate the mandrel be, caps attached, which have a pouring opening, which can be closed by a lid. These parts are as separate parts made of plastic and are subsequently plugged in another mounting gear.

outgoing The object of the present invention is the object of the prior art basically, a container for holding liquids further develop the generic type so that the lid for closing a container opening Part of the container is that the hinge to the To close containers, be operated many times can, without the connection breaks off. Furthermore, should the connection itself act as a hinge in the way that at least the lid is easy to operate and when reopening the Cover exerted a supportive Abhebewirkung on the lid becomes. As far as the lid is used directly as a cap, the hinge should be designed so that when closing a supporting effect is given.

The Task solves the invention by design of the container according to the specified in claim 1 technical Teaching.

Of the Container according to the invention is characterized that directly on the container opening at the Container wall at least the lid via a connection, which is a rocker arm closure in the form of a film hinge, molded is that the connection with the lid by injection molding the container is formed that the container in a blow mold by pressurizing in the final Form is spent and that the cover over or in the Container opening is pressed. The container can be z. B. be made of an extruded film and be formed in a mold in blowing technique. For this Purpose becomes the mandrel, over which the gas or the air is pressed into the film tube, inserted into the container opening.

When hot, the film can be materially bonded to other plastics. Therefore, the lid can be directly molded onto the film in a two-component process by inserting the film into the mold into a cavity provided therein, via the hinge-like Ver binding. In another embodiment, it can be provided that a lid for immediate closure of the container opening is molded over a short connection. The lid may have a sealing edge which sealingly engages on or over an inner ring in the container opening. But the lid can also have a pouring opening, z. B. have a central hole or a triangular hole. In order to be able to close this hole, in another embodiment, for example, a connection to a closure cap can be molded onto the container opening on the opposite side on the container opening or on a side offset by 90 ° from the container opening neck. This connection is made a little longer, so that the cap is pivotable over the lid. By means of a latching edge, the cap can be pressed onto the lid. Furthermore, a sealing projection can be provided in the closure cap, which sealingly engages in the pouring opening in the lid when latching. The cap may also have a Anformung so that it is easier abdrückbar by fingers from the Verschließstellung to make the pouring opening by folding away the flap again accessible.

In Another embodiment provides that in series to a lid, which by means of a film hinge on the container wall is fastened in the area of the container opening, outside protruding in series, but opposite by 180 ° turned the cover around the connection axis, a cap is formed. The inside of the cap so after bottom, while the inside of the lid is facing up. The cap and the lid are made of the same plastic, for example PP, ABS or PE plastic. By this arrangement, the one-sided attached to the container can when closing the container opening first, the nearest Cover pressed on or in the container opening become. If the lid has a pouring opening, The molded cap can be pressed onto the lid to close the pouring opening.

The Hinges are so stretched when stretched when hot that they do not break even with frequent use, but the hinge function over the entire life of the Container remains ensured. Instead of such overstretched bands but can also be sprayed, for example, a butterfly hinge be paired with at least one lateral spring element an over-center function exercise, so that when closing the cap or the lid on which such a hinge is located, a supportive closing effect when moving is given in the closed position.

advantageous Embodiments are in the dependent claims 2 to 11 in Detail specified.

There the container itself, for example made of PET plastic is made, is formed relatively stable shape, can the lid, the connections and possibly the existing cap be made of a softer, elastic plastic material, z. B. made of polypropylene, whereby when closing the opening a high tightness with appropriate dimensioning of the parts is achievable. The container can therefore be made of a blow-mold Plastic and at least the lid and the film hinge can made of a more elastic plastic than the container.

A Mold for producing a container according to the invention is specified in claim 12. This is characterized by a first Cavity for receiving a film or preform for blow molding the container and at least one further cavity for training and Anformung the lid and the connection for molding to the film from which the container made in blowing technique becomes. The mold is inserted in a blow molding machine. It can of course also two cavities in the form laterally at the container opening may be provided arranged, which open into the first cavity and for the molding of the intended cover and the Compounds and the cap are designed. By opening the cavity in which the cap is hosed down, this can be exposed and by means of a slider or a Poor pressed in the direction of the container opening be, thereby overstretching the connecting hinge he follows. As a result, the cross-linking of the plastic is influenced in such a way that the hinge does not break even with frequent use.

One such overstretching can also occur with the other hinge be made, depending on how this is formed. It can but also constructions can be used that have an over-center function meet, so even when closing the lid or the cap and a supportive when opening Effect is given.

The Anformung of the lid and the cap does not need both sides on a neck, z. B. a bottleneck of a plastic bottle provided be. They can also be formed in series, which is manufacturing technology easier to handle, especially if a preform out sprayed plastics is used, in which the two-component method the lid and the optionally provided cap with the hinges in series and the container preform are arranged. The hinge between the lid and the cap may for example also be an over-center hinge, which supports the closing action.

The Invention is described below with reference to the drawings Embodiments explained in addition.

In show the drawings:

1 a preform of a PET bottle in a perspective view with a two-component injection-molded lid and a cap,

2 the preform according to 1 with the molded parts in the side view,

3 the molded, bottle-shaped container with lid and cap in the open state,

4 the container after 3 with closed lid and cap,

5 a preform having a lid and cap molded thereto in a two-component process, which are connected to each other and to the preform by means of film hinges,

6 a plan view of the preform 5 .

7 a side view of the in 5 represented preform,

8th a bottle-shaped container made from the preform according to 5 and 7 is made by blow molding, with lid open and cap and

9 in perspective view of the bottle-shaped container after 8th with closed lid and cap.

In the 1 to 4 a first embodiment of a container according to the invention is shown. In 1 is a preform, for example, made of PET, hosed shown. The preform is cylindrical in shape and has an undercut edge on the top side, namely running inside 12 as well as opposite recesses 14 and 15 in the jacket wall for receiving the band-shaped hinges 4 and 7 on that the connections to the lid 2 on the one hand and to the cap 6 on the other hand. The recesses 14 and 15 are in width the hinges 4 and 7 customized. The recess depth is defined by the height of the lid 2 that's about the hinge 4 in the opening 3 after completion of the bottle-shaped container 1 is depressible. The length of the connection 4 , which forms a hinge band, is chosen so that the lid 2 in the opening after completion of the container 1 , like out 3 and 4 visible, is depressible. The introduced pouring opening 8th Can be injection molded through one on the opposite side, with sealing approach 9 provided and with a longer film hinge 7 attached cap 6 be closed. The movie hinge 7 on the cap 6 is on the cap 6 stretched when hot to allow multiple opening and closing without breaking the hinge. The hinge strap is in the edge of the recess 15 pivoted, with the molded seal approach 9 in the pouring hole 8th is pressed. The cap 6 also has an approach 13 in the form of an integrally formed triangle, so that in the closed position according to 4 the cap 6 by taking under the approach 13 can be opened, the seal approach 9 from the pouring opening 8th slides out.

The preform produced by the two-component injection process 11 with the formations of lids 2 and cap 6 is in a blow mold after inserting a mandrel into the container opening 3 formed by pressurization and then has the exemplified bottle-shaped molding according to the 3 and 4 on.

In the 5 to 9 a second example is shown, which differs from the first one in that the preform 11 one-sided about film hinges 4 and 7 a molded from other softer plastic molded lid 2 and a cap 6 having. At the cap 6 is also an approach 13 molded to this from the in 9 to be able to reopen the illustrated closed state. This one between the preform 11 and the lid 2 existing hinge 4 is a simple hinge, which is usually used only once when closing the container, while the second hinge 7 that between the lid 2 and the cap 6 is a Übertotpunktscharnier plastic or a molded, overstretched hinge hinge, which is often used to the pouring opening 8th to close or release again.

From the side view in 7 it can be seen that the lid 2 at the bottom a Aufsetzrand 5 has, on which the cap 6 is sealingly aufdrückbar with an inner recess. The above seal approach 9 engages when pressing the cap 6 on the rim 5 while in the pouring opening 8th sealingly. From the side view can also be seen that according to the sequence of movements, namely the folding and folding of the lid 2 to the right, the hinge 7 must be designed so that the cap 6 on the lid 2 , on the edge of the attachment 5 , is aufdrückbar. The preform 11 will like the one in 1 placed in a cavity of a blow mold and by blowing in the hot state in the bottle shape according to 8th and 9 spent. Thus, from the injection molding preform, a blow container with the cover already molded in the first production step arises 2 and the cap 6 as well as the hinges 4 and 7 , In 9 is the closed state of the container 1 shown. By taking under the approach 13 on the cap 6 this can be pivoted upwards and thus the pouring opening in the lid 2 be exposed.

The Advantages of such containers are obvious. The container can be closed easily after filling become. This can be done both manually and by machine. About that In addition, after opening the container this too be closed again, leaving only small amounts of filling can be removed. This can z. As liquids or pasty liquids. All parts form one unity.

The Invention is not bound to any shaping of the container. This can have any shapes, such as from Blasbehältern, in the cosmetics industry, for example.

1

container

2

cover

3

container opening

4

connection

5

attachment edge

6

cap

7

film hinge

8th

pouring opening

9

seal approach

10

bottleneck

11

preform

12

Undercut edges

13

approach

14

approach

15

recess

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4412657 A1 [0002]
• EP 0247566 B2 [0003]

Claims (17)

Container for holding liquids with a lid ( 2 ) for closing a container opening ( 3 ) and a connection ( 4 ) between the container ( 1 ) and the lid ( 2 ), the container ( 1 ), the connection ( 4 ) and the lid ( 2 ) form a part, which consists of plastic, characterized in that directly at the container opening ( 3 ) on the container wall, at least the lid ( 2 ) via a connection ( 4 ), which is a toggle closure in the form of a film hinge, is molded in such a way that the connection ( 4 ) with the lid ( 2 ) by injection molding on the container ( 1 ) is formed, that the container ( 1 ) is placed in a blow mold by applying pressure medium in the final shape and that the lid ( 2 ) over or into the container opening ( 3 ) is depressible. Container according to claim 1, characterized in that a closure cap ( 6 ) via a film hinge ( 7 ) in the region of the container opening ( 3 ), spaced from the lid ( 2 ) or in series thereto, but by 180 ° relative to the lid ( 2 ) is rotated about the connection axis, is molded and that the closure cap ( 6 ) consists of the same plastic as the lid ( 2 ). Container according to claim 1 or 2, characterized in that the container ( 1 ) from a plastic film or from a molded preform ( 11 ) is blow-molded. Container according to one of the preceding claims, characterized in that the container ( 1 ) in the container opening ( 3 ) has a press fit into which the lid ( 2 ) can be pressed in after being swung over. Container according to claim 2, characterized in that the closure cap ( 6 ) over the lid ( 2 ) is pivotable and aufdrückbar on this. Container according to claim 5, characterized in that the lid ( 2 ) a pouring opening ( 8th ) and the cap ( 6 ) a sealing approach ( 9 ), which in the pouring opening of the lid ( 2 ) is depressible. Container according to claim 3, characterized in that the container ( 1 ) of a blow-moldable plastic and at least the lid ( 2 ) and the film hinge of a more elastic plastic than the container. Container according to claim 1, characterized in that the container ( 1 ) a bottle-shaped container ( 1 ) with a bottleneck ( 10 ) with undercut edges ( 12 ). Container according to claim 1 or 2, characterized in that the compound ( 4 ) is a film hinge with over-center function. Container according to claim 1 or 2, characterized in that at least the compound ( 4 ) of the cap ( 6 ) is overstretched. Container according to claim 1 or 7, characterized in that the container ( 1 ) made of linear polyester or polyethylene terephthalate (PET) and the lid ( 2 ) and optionally the cap ( 6 ) made of polypropylene (PP), polyethylene (PE), polymer (ABS) or other thermoplastic material. Mold for manufacturing a container according to claim 1, characterized in that the mold has a first cavity for receiving a film or preform ( 11 ) for blow molding the container ( 1 ) and at least one further cavity for forming and molding the lid ( 2 ) and the compound ( 4 ) for molding to the film. Mold according to claim 12, characterized in that at least two cavities laterally of the container opening ( 3 ) are provided, which open into the first cavity and for the formation of the lid ( 2 ) with compound ( 4 ) and the cap ( 6 ) with compound ( 4 ), at least the compound ( 4 ) with the cap ( 6 ) by opening the cavity and by moving the cap ( 6 ) is displaced so far over the container opening by means of slide or stretching arm, until an overstretching of the hinges forming connection takes place. Mold according to claim 12 or 13, characterized in that two cavities for the formation of the lid ( 2 ) and the cap ( 6 ) are arranged in series, wherein the formation of the cavities is made so that the cover ( 2 ) via a film hinge ( 7 ) in the press frame of the container ( 1 ) is pressed and the hinge between the lid ( 2 ) and the cap ( 6 ) is provided in opposite directions and / or acting as Übertotpunktscharnier. Mold for producing a container according to claim 1, characterized in that the mold is an injection mold and a first cavity for forming the preform ( 11 ) and at least one further cavity for forming and forming the lid ( 2 ) and the compound ( 4 ). Mold according to one of claims 15, characterized in that the cavity of the preform ( 11 ) and the cavities of the lid ( 2 ) and / or the cap ( 6 ) and the connections ( 4 ) in the two-component process in the Spritzgießmaschi ne fillable with different plastics. Mold according to one of claims 12 to 16, characterized characterized in that the overstretching of the hinge in cap open cavity inside the shape is done by gripping by means of a pressure arm.