EP1215138A1 - Container - Google Patents

Abstract

The pot for jam has a lid (2) with a locking ring (4) which fits around the lip of the pot. A pressure release valve (5) in the lid allows the vacuum in the pot to be released before it is removed.

Description

The present invention relates to a container, as he in the preamble of independent claim 1 is defined.

For the transport and storage of flowable products, such as. Jam, for example containers are used, which is a container with one surrounded by a flange Include container opening. The container opening is with a container lid can be closed, with a sealing ring between container lid and flange for a gas-tight Closure provides. The container lid is by means of a Clamping ring surrounding flange clamped against the container. The clamping ring is relative to the flange between a clamping position, by putting the container lid against the container tense, and rotatable in a loose position. This points the flange, for example, six protruding outwards Clamping bolt on and the clamping ring is accordingly with six bayonet-type recesses for receiving the clamping bolt. There are often a on the container lid Fumigation valve, which supplies a protective gas to the Allows containers with the container lid installed, as well as a pressure relief device, a safety valve that normally does not let gas through when closed, but the escape of gases when the pressure is too high and venting gas before removing the container lid allows, attached. A container of this kind is disclosed for example in EP-A-0 957 038.

A disadvantage of these known containers is that a Opening the container is also possible when the container is under pressure, i.e. an overpressure inside the container is available. This could result in a careless rapid opening of the container to throw the Guide the container lid. In addition, for safe prevention an unintentional opening of the container during of sealing used during transport become.

Given the disadvantages of the previously known, described above Containers of the invention have the following object based. A container must be created at the beginning mentioned type of opening the container when under Pressure is only allowed after a pressure reduction.

This object is achieved by the container according to the invention solved as defined in independent claim 1 is. Preferred design variants result from the dependent claims.

The essence of the invention is as follows: A container comprises a container with one of a flange surrounding container opening, a container lid for closing the container opening, one on the container lid attached pressure relief device, which in closed No gas passes through, and one that surrounds the flange and relative to this between a clamping position, by putting the container lid against the container clamps, and a loosely rotatable clamping ring. The container includes safeguards that ensure that with the clamping ring in the clamping position and closed pressure relief device a release of the Clamping ring is only possible after the pressure relief device has been opened so that gas comes out of the container can escape.

Thanks to the securing means, it is guaranteed that an under Pressurized container only after a pressure reduction can be opened by gas escape. To this This can result in the container lid being thrown away when it is opened of the container can be prevented effectively.

The securing means are preferably also designed such that that they are filling the container with a Shielding gas only after the Allow containers and locking of the lock. With advantage the lock is secured so that an unintentional Opening the container, for example during of transportation, is practically excluded.

In an advantageous embodiment variant, the pressure relief device is a safety valve that preferably comprises a valve cap rotatable on a valve housing and when the valve body is fully turned Valve cap is closed gas-tight. The valve cap is preferably rotated so far away from the valve housing that gas can escape from the container, but the valve cap still is held on the valve housing. The turnability can for example by a screw connection or a bayonet-type Connection be realized. preferred two-stage safety valves that prevent gas from escaping allow while the valve cap is still on the valve body are described in DE-U-296 05 010.5, hereby explicitly regarding the safety valves is included in the present disclosure.

The flange advantageously faces at least one outwards protruding clamping bolt and the clamping ring with at least a bayonet-type recess for receiving of the clamping bolt or one of the clamping bolts, the clamping bolt the clamping ring in the clamping position clamps against the container. Fastening the container lid can easily be done by pressing down and turning the clamping ring.

In a preferred embodiment variant, the securing means comprise one attached to the tension ring, parallel to the direction of the axial relative movement of the valve cap locking bolts aligned with the valve housing and a mounted on the valve cap to use this rotatable disc a hole for receiving the safety bolt in itself the clamping position and closed Safety valve. When in the clamping position Clamping ring, the disc can be rotated so that the Hole comes to rest over the safety bolt. this makes possible the further screwing of the valve cap onto the valve housing, the safety bolt penetrating into the hole. Then the clamping ring is locked and can only be released again after removing the valve cap from the valve body is turned away that the securing bolt is not engages more in the hole. The safety valve must therefore first be opened before the clamping ring is released can be. In addition, the safety bolt protruding into the hole also make sure that accidental opening the container, for example during transport, can be practically excluded.

In an alternative advantageous embodiment the securing means comprise one formed on the clamping ring Hole and a valve cap mounted to it rotatable holding element with an attached, parallel to the direction of the axial relative movement of the valve cap safety bolts aligned with the valve housing, the clamping ring in the clamping position and closed safety valve protrudes into the hole. The Operating principle corresponds essentially to that of previous embodiment, but here the holding element is turned with the safety bolt. This variant has the advantage that the valve cap only can then be turned completely onto the valve housing, when both the clamping ring and the container lid are loose are in the desired position.

The container advantageously includes container lid positioning means, which make sure the container lid only in one position fits exactly on the container, as well Clamping ring positioning means that ensure that the Tension ring against the container lid only in one position can clamp the container. The container lid positioning means preferably comprise a cam and a complementary one Recess. The clamping ring positioning means include preferably one attached obliquely on the container lid Handle and a recess in the clamping ring. By The positioning means ensures that the container lid and the clamping ring in a predetermined position be attached. After attaching the container lid and the clamping ring, the safety valve can be closed and only then is the container filled with a protective gas possible without this immediately escapes.

Is preferably between the container lid and flange Sealing ring arranged for a tight seal of the Container opening ensures.

Fig. 1 -

einen Teil eines Behälters mit aufgelegtem Behälterdeckel eines erfindungsgemässen Containers in einer Seitenansicht;

Fig. 2 -

eine Schnittansicht des am Behälterdeckel angebrachten zweistufigen Sicherheitsventils mit vollständig aufgeschraubter Ventilkappe mit Sicherungs-Scheibe;

Fig. 3 -

das Sicherheitsventil von Fig. 2 mit teilweise nach oben weggeschraubter Ventilkappe;

Fig. 4 -

eine Seitenansicht des Containers von Fig. 1 mit Spannring in Spannstellung und vollständig aufgeschraubter Ventilkappe;

Fig. 5 -

eine Draufsicht auf den Container gemäss Fig. 4;

Fig. 6 -

eine Seitenansicht des Containers von Fig. 1 mit teilweise weggedrehter Ventilkappe und Spannring in loser Stellung; und

Fig. 7 -

eine Draufsicht auf den Container gemäss Fig. 7.

In the following, the container according to the invention is described in more detail with reference to the accompanying drawings using an exemplary embodiment. Show it:

Fig. 1 -

a part of a container with the container lid of an inventive container in a side view;

Fig. 2 -

a sectional view of the two-stage safety valve attached to the container lid with a fully screwed valve cap with locking washer;

Fig. 3 -

the safety valve of Figure 2 with the valve cap partially screwed upward.

Fig. 4 -

a side view of the container of Figure 1 with clamping ring in the clamping position and fully screwed valve cap.

Fig. 5 -

a plan view of the container of FIG. 4;

Fig. 6 -

a side view of the container of Figure 1 with the valve cap and clamping ring turned away in a loose position. and

Fig. 7 -

7 shows a plan view of the container according to FIG. 7.

Figure 1

The upper part of a container shown comprises one Container 1 with a container opening surrounded by a flange 11, also called manhole. Stand by the flange 11 six clamping bolts 12 all around at regular intervals outside from. A container lid 2 is on the container opening or the flange 11, with the flange 11 and container lid 2, a sealing ring 3 is arranged, the ensures that the container opening is sealed. The container lid 2 comprises a straight one Handle 22 and an obliquely arranged handle 21. There is also a two-stage safety valve on the container lid 2 5 as a pressure relief device and one here gassing valve covered by safety valve 5 appropriate. The safety valve 5 has a valve housing 52 on that with a first external thread 53, a second external thread 54, an outer ring projection 56 and two valve openings 55 is provided, one Valve opening 55 is not visible here.

A cam 23 projecting downward on the container lid 2 and a complementary recess 13 in the flange 11 form container lid positioning means that ensure that the container lid 2 only in one position the container 1 fits.

The following definition applies to the entire further description. Are in a figure for the sake of graphic clarity Reference numerals included, but in the immediately associated Descriptive text not mentioned, or vice versa, see above will be based on their explanation in previous figure descriptions Referred.

Figure 2

It can be seen here that the two-stage safety valve 5 has a valve cap 51 with an internal thread, screwed on the second external thread 54 is. The valve cap 51 on which a disc rotates around it 6 is mounted, is thus completely on the valve housing 52 turned or screwed and pushes via one inside of the valve housing 52 arranged coil spring Closure element with a sealing ring attached to it an inner ring projection, which has an overpressure opening limited in the container lid 2. The overpressure opening is at completely screwed on valve cap 51 tightly closed. Such a safety valve without a rotating disc 6 is described in DE-U-296 05 010.5.

Figure 3

In the illustrated, partially rotated away from the valve housing 52 Position of the valve cap 51 can the closure member from any overpressure in container 1 upwards can be moved against the valve cap 51, whereby the pressure opening and the valve openings 55 gas escape can. The valve cap 51 is thrown away by the application of the internal thread of the valve cap 51 to the first External thread 53 of the valve housing 52 prevented.

Figures 4 and 5

A clamping ring 4 for tightening the container lid 2 on Container 1 comprises six bayonet-type cutouts 41 through which the clamping bolts attached to the flange 11 12 protrude. The cutouts 41 each have two Locking grooves 411 and 412, into which the clamping bolts 12 snap can. In the illustrated clamping position of the Clamping rings 4 are the clamping bolts 12 in the upper locking grooves 412 engaged and tension the container lid 2 against the container 1. Are the clamping bolts 12 in the lower Locking grooves 411, the clamping ring 4 is only loosely attached and it can possibly be in addition to the safety valve 5 a pressure reduction by gas escaping through a arise when lifting the container lid 2 slightly Gap between flange 11 and container lid 2.

Any overpressure in the Container 1 before removing the container lid 2, however via the safety valve 5. So that the Clamping ring 4 is only possible after the safety valve 5 has been opened so that gas from container 1 can escape, i.e. the valve cap 51 sufficiently far from Valve housing 52 has been turned away are special securing means intended. These safeguards include on the one hand, attached to the clamping ring 4, parallel to Direction of the axial relative movement of the valve cap 51 for Valve housing 52 aligned locking bolt 42 and the other which mounted on the valve cap 51 to this rotatable disc 6 with a hole 61 for receiving the securing bolt 42 in the tensioned position Clamping ring 4 and closed safety valve 5. Through the safety bolt protruding through the hole 61 of the washer 6 42 the clamping ring 4 is locked in the clamping position. It can only be solved after the Washer 6 has released the locking bolt 42, which the The case is when the valve cap 51 is sufficiently far from Valve housing 52 has been turned away by the safety valve 5 gas can escape.

The obliquely arranged handle 21 on the container lid 2 and a recess 43 in the clamping ring 4 form clamping ring positioning means, which ensure that the clamping ring 4 only in a position exactly on the container lid 2 and the container 1 fits. The disc 6 thus comes when tightly closed the container opening always above the safety bolt 42 to lie.

The fumigation valve 7 is also visible here, through which the container 1, for example with a protective gas fumigated or through which a specific product in the container 1 can be filled.

Figures 6 and 7

Here is the situation when the Tension ring 4 shown. The valve cap 51 can are screwed completely onto the valve housing 52, however, it is not possible to overpressure in container 1 build up by the weight of the container lid 2 generated pressure significantly exceeds, because then the container lid 2 is lifted off the flange 11 and gas over the gap formed between flange 11 and container lid 2 escapes.

• Die Sicherungsmittel können alternativ ein am Spannring ausgebildetes Loch und ein an der Ventilkappe montiertes, um diese drehbares Halteelement mit einem daran angebrachten, parallel zur Richtung der axialen Relativbewegung der Ventilkappe zum Ventilgehäuse ausgerichteten Sicherungsbolzen, der bei sich in der Spannstellung befindlichem Spannring und geschlossenem Sicherheitsventil in das Loch ragt, umfassen.
• Die Druckentlastungsvorrichtung kann auch durch einen Hahn gebildet sein.

Further design variations can be implemented for the container described above. Here are also explicitly mentioned:

• As an alternative, the securing means can have a hole formed on the clamping ring and a holding element mounted on the valve cap and rotatable about this with an attached securing bolt aligned parallel to the direction of the axial relative movement of the valve cap relative to the valve housing the hole protrudes.
• The pressure relief device can also be formed by a tap.

Claims (10)

Container, comprising a container (1) with a container opening surrounded by a flange (11), a container lid (2) for closing the container opening, a pressure relief device (5) attached to the container lid (2) which does not let gas through when closed, and a clamping ring (4) surrounding the flange (11) and rotatable relative thereto between a clamping position in which it clamps the container lid (2) against the container (1), and a loose position, characterized in that the container securing means (6 , 61, 42), which ensure that when the clamping ring (4) is in the clamping position and the pressure relief device (5) is closed, the clamping ring (4) can only be released after the pressure relief device (5) has been opened such that Gas can escape from the container (1). Container according to claim 1, characterized in that the pressure relief device is a safety valve (5) which preferably comprises a valve cap (51) which can be rotated onto a valve housing (52) and which is closed in a gastight manner when the valve cap (51) is rotated completely on the valve housing (52) , Container according to claim 2, characterized in that the valve cap (51) can be rotated so far away from the valve housing (52) that gas can escape from the container (1), but the valve cap (51) is still held on the valve housing (52) , Container according to one of claims 1 to 3, characterized in that the flange (11) has at least one clamping bolt (12) projecting outwards and the clamping ring (4) with at least one bayonet-type recess (41) for receiving the clamping bolt or one of the Clamping bolt (12) is provided, the clamping bolt (12) tensioning the clamping ring (4) in the clamping position against the container (1). Container according to one of Claims 2 to 4, characterized in that the securing means have a securing bolt (42) attached to the clamping ring (4) and oriented parallel to the direction of the axial movement of the valve cap (51) relative to the valve housing (52), and one on the valve cap ( 51) mounted around this rotatable disc (6) with a hole (61) for receiving the securing bolt (42) when the clamping ring (4) is in the clamping position and the safety valve (5) is closed. Container according to one of claims 2 to 4, characterized in that the securing means a hole formed on the clamping ring and a mounted on the valve cap, rotatable about this retaining element with an attached, parallel to the direction of the axial relative movement of the valve cap to the valve housing aligned locking bolt, the protrudes into the hole when the clamping ring is in the clamping position and the safety valve is closed. Container according to one of claims 1 to 6, characterized in that it comprises container lid positioning means (13, 23) which ensure that the container lid (2) only fits exactly on the container (1) in one position. Container according to claim 7, characterized in that the container lid positioning means comprise a cam (23) and a complementary recess (13). Container according to one of claims 1 to 8, characterized in that it comprises clamping ring positioning means (21, 43) which ensure that the clamping ring (4) can only clamp the container lid (2) against the container (1) in one position , wherein the clamping ring positioning means preferably comprise a handle (21) mounted obliquely on the container lid (2) and a recess (43) in the clamping ring (4). Container according to one of claims 1 to 9, characterized in that a sealing ring (3) is arranged between the container lid (2) and the flange (11).

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