EP1155967A1 - Clamping ring for closing a container and a device for closing such a clamping ring - Google Patents

Abstract

The fastening strap for a container with a lid has a V-shaped cross-section. A swivelling latch (5) is mounted on one end (3) of the strap and this is retained by a catch (8) on its other end (2) which fits through a slot.

Description

The invention relates to a clamping ring for closing a Container with a lid, with a general cross-section V-shaped, open ring body, the free end portions overlap at least in the closed state of the clamping ring, a tension lever on one free end section is pivotally mounted on which a connecting arm is articulated, to close the other end section when closing the clamping ring Direction of one end section.

The invention further relates to a device for closing of such a clamping ring for closing a container with a lid, the clamping ring in the closed state Cover with an oblique leg against its V-section a roll of the container presses, and the engaging parts on one end section over the one in the closed position Connecting arm connected connecting arm or at the other end section be automatically engaged.

Clamping rings with a clamping lever for closing or opening the clamping ring are for example from EP 410 141 A and the GB 1 558 930 A is known. In these known clamping rings Connection leg firmly at the end away from the tensioning lever connected to the other end section, and thus lies when open Clamping lever is a clamping ring larger than in the closed Condition before, however, the two end sections are always connected with each other; this leads to problems with the (first time) Assembly of the clamping rings, as they only close the Clamping lever can take place, an automation of this closure process is practically not possible. The well-known Clamping rings must therefore be filled after filling the container and placing the lid or clamping rings - which is done mechanically can be closed by hand.

On the other hand, EP 471 911 A and CH 685 488 A clamping rings known that do not have a clamping lever. With these clamping rings, the clamping rings are closed by the engagement of locking elements in an engagement opening or using a pen. Such clamping rings are indeed for One-time automatic closing is suitable, but is disadvantageous opening and reclosing of such Clamping rings are very difficult.

Furthermore, EP 471 911 B describes a device for automatic Closing a clamping ring shown, which one in Top view C-shaped, one flaring downwards Has inner surface body, on which a resilient stored lid closer for closing the container with a cover can be moved vertically. For closing the clamping ring by clamping the lid on the edge of the container Body with the conical inner surface down along the clamping ring moves, the radius of the clamping ring is reduced and the Clamping ring with a sloping leg cover and container rim presses against each other. The disadvantage here is that the C-shaped Body is a relatively massive, heavy component, nonetheless a pressure on the tension ring radially inward done only over a part of its scope and a substantial The peripheral part remains free where the clamping ring is initially bulge temporarily undesirable.

It is an object of the invention, a clamping ring of the beginning to create a kind that is both simple and in particular automated first closing of the clamping ring as also opening and reclosing the clamping ring on simple Way.

Furthermore, it is an object of the invention to provide a device for automated first locking of the clamping ring, which is simple in construction and efficient Constriction of the clamping ring can be achieved.

The clamping ring according to the invention of the type mentioned is characterized in that the connecting arm and the other End section cooperating engagement parts for one mutual positive engagement when closing the clamping ring have at least one engagement projection as engagement parts and at least one engagement opening is provided are.

By the mutual engagement of the engagement projection and the engagement opening when closing the clamping ring are in advantageously before the first closing of the clamping ring two end sections are not connected to each other, creating a simple and automated application of the clamping ring on the Container or the lid - with the clamping lever closed becomes. On the other hand, the tensioning lever enables simple Opening and reclosing the clamping ring in a conventional manner Way after the engagement projection with the engagement opening was engaged.

For simple mutual engagement of the two end sections it is advantageous if at the other end section than Engagement part provided a radially projecting bridge-like bracket is. Simple manufacturing is made possible if the bracket is formed by punching and bending.

If the bracket is used with a hook or nose-shaped engagement projection is formed, whereas the connecting arm the at least one engagement opening has, the two engagement parts in a simple manner be brought into engagement with each other.

For a simple mechanical connection it is between the other end portion and the connecting arm cheap if the connecting arm with a mounting bracket reaches under the bracket so that when closing the Clamping rings lead the fastening strap directly through the Bracket is ensured.

To engage the engagement protrusion in the engagement opening secure and thus a reliable cohesion of the other end portion and the connecting arm, it is advantageous if the engagement projection in the engagement position is bent radially inwards into the engagement opening.

For reliable cohesion of the previously free end sections on the other hand, it is also favorable if the engagement projection in the engaged position with an edge of the The engagement opening is locked.

If the connecting arm or its mounting bracket for an automatic resilient engagement of the engagement projection in the end of the engagement opening is bent away from the open ring body is a simple way of engaging the engagement projection in the engagement opening under the previous one The bracket is passed over the bracket.

For a centering effect and a reliable intervention, which minimizes the lateral play of the connection holds, it is advantageous if the engagement opening is trapezoidal, with the shorter of the two parallel trapezoidal sides is arranged facing away from the clamping lever.

Furthermore, a connection between Link arm and the other end section can be reached if the connecting arm as at least one projecting engagement nose Has engagement part for engagement with the bracket.

To the manufacturing costs and production times of the clamping ring To keep it low, it is beneficial if the engaging nose is formed by punching and bending.

On the other hand, it is for reliable intervention Engagement nose in the engagement tab and simple training also advantageous if at least one sawtooth-like engagement nose is formed on the connecting arm.

To prevent the tension lever from opening unintentionally when closed To prevent the condition of the clamping ring reliably, it is advantageous if to secure the clamping lever in the closed Condition in a manner known per se, a split pin is provided, which through openings in the tensioning lever and through one firmly at one end section attached tab is passed.

The device according to the invention for closing a clamping ring is characterized by several around the container circular, cone-shaped in regular intervals Locking parts are provided which are conical downwards taper and when lowering the clamping ring relative to the container compress radially to overlap the two end sections to push; the engaging parts on one End section over the clamping lever in the closed position connected connecting arm or at the other end section are reliably brought into engagement with each other automatically, by choosing the number of locking parts - depending on the diameter of the clamping ring - get enough points of attack on the clamping ring be able to narrow it safely. in the It is also necessary if the locking parts are detachable or adjustable attached to a support holding them, one easy conversion of the device to others Tension ring dimensions possible.

This is a structurally simple, inexpensive device created by means of which the respective clamping ring through the plant on the conically tapering towards the bottom cone-shaped locking parts can be closed in a simple manner can. Furthermore, the pin-shaped locking parts allow due to the possibility of a flexible arrangement also an adjustment cross sections of the containers deviating from a circular shape and thus on non-circular clamping rings.

Fig. 1 eine Ansicht eines Teils eines Spannrings gemäß einer ersten Ausführungsform, bei dem ein an einem Spannhebel angelenkter Verbindungsarm unter einem Bügel hindurchgeführt ist;

Fig. 2 eine Draufsicht auf diesen Spannring-Teil;

Fig. 3 eine perspektivische Ansicht des Bereichs des Bügels dieses Spannrings;

Fig. 4 eine perspektivische Ansicht eines Verbindungsarms mit einer Eingriffsöffnung;

Fig. 5 eine Draufsicht ähnlich Fig. 2, wobei am Verbindungsarm mehrere Eingriffsöffnungen schematisch angedeutet sind;

Fig. 6 einen Längsschnitt gemäß der Linie VI-VI in Fig. 5;

Fig. 7 einen Querschnitt gemäß der Linie VII-VII in Fig. 5;

Fig. 8 einen Längsschnitt, ähnlich Fig. 6, nun jedoch mit den Eingriffsteilen in der Eingriffsstellung;

Fig. 9 eine Seitenansicht eines Teils eines Spannrings gemäß einer anderen Ausführungsform, mit einem vom Ringkörper weggebogenen Verbindungsarm in der geöffneten Stellung;

Fig. 10 den Spannring-Teil gemäß Fig. 9 in entsprechender Ansicht, wobei die Eingriffsteile nun in Eingriff stehen;

Fig. 11 eine Draufsicht auf den Spannring-Teil gemäß Fig. 10;

Fig. 12 einen Teil eines Spannrings, bei dem eine Eingriffsnase am Verbindungsarm vorgesehen ist;

Fig. 13 einen Teil eines weiteren Spannrings, bei dem auf der Breitseite einer Befestigungslasche des Verbindungsarms Eingriffshaken vorgesehen sind;

Fig. 14 eine Detail-Seitenansicht der Befestigungslasche gemäß Fig. 13;

Fig. 15 schematisch und teilweise im Schnitt eine Darstellung einer Vorrichtung zum Schließen eines Spannrings; und

Fig. 16 schematisch eine Untersicht der wesentlichen Schließteile der Vorrichtung gemäß Fig. 15.

The invention is explained in more detail below on the basis of preferred exemplary embodiments illustrated in the drawing, to which, however, it is not intended to be limited. The drawing shows in detail:

Figure 1 is a view of part of a clamping ring according to a first embodiment, in which a connecting arm articulated on a clamping lever is passed under a bracket.

Fig. 2 is a plan view of this clamping ring part;

3 is a perspective view of the area of the bracket of this clamping ring;

4 is a perspective view of a connecting arm with an engagement opening;

FIG. 5 is a plan view similar to FIG. 2, with a plurality of engagement openings being indicated schematically on the connecting arm;

Fig. 6 is a longitudinal section along the line VI-VI in Fig. 5;

Fig. 7 is a cross section along the line VII-VII in Fig. 5;

8 shows a longitudinal section, similar to FIG. 6, but now with the engagement parts in the engagement position;

9 shows a side view of part of a tension ring according to another embodiment, with a connecting arm bent away from the ring body in the open position;

FIG. 10 shows the clamping ring part according to FIG. 9 in a corresponding view, the engagement parts now being engaged;

FIG. 11 shows a plan view of the clamping ring part according to FIG. 10;

12 shows a part of a clamping ring in which an engagement lug is provided on the connecting arm;

13 shows a part of a further clamping ring, in which engagement hooks are provided on the broad side of a fastening tab of the connecting arm;

FIG. 14 shows a detailed side view of the fastening tab according to FIG. 13;

15 shows schematically and partly in section an illustration of a device for closing a clamping ring; and

16 schematically shows a bottom view of the essential locking parts of the device according to FIG. 15.

1 to 8 is an inherently open clamping ring 1 with two Free end sections 2, 3 shown, with one end section 3 a tension lever 4 is pivotally attached. The tension lever 4 is about an axis running perpendicular to the plane of FIG. 1 4 'pivotally mounted, and on the clamping lever 4 is in turn a Fastening tab 6 having connecting arm 5 around a Axis 4 'parallel axis 5' pivotally mounted. At the other end section 2 is a punched and bent bracket 7 with an engagement projection 8 serving as an engagement projection. For engagement of the connecting arm 5 with the end section 2 the fastening tab 6 of the connecting arm 5 has an engagement opening 9 (see FIGS. 2 and 4), in which in the engaged position the engagement nose 8 (see FIG. 8) engages.

In the position shown in dashed lines in Fig. 1 is the mounting tab 6 of the connecting arm 5 not yet through the Engagement bracket 7 passed, and the clamping lever 4 is also shown in an open position, into which it can be pivoted can be brought about the axis 4 '. The pivots Link arm 5 automatically about the axis 5 'on the clamping lever 4, and its free end can, as shown in FIG. 1, under the bracket 7 to step.

Furthermore, there is an opening 10 in the tensioning lever 4 in FIG. 1 can be seen which for receiving a split pin 11 (see FIG. 2) serves, which by a positive connection with a firmly attached to the end portion 3 tab 12 (see FIG. 1) Clamping lever 4 secures in its closed position, as in Fig. 2 is shown.

2, the engagement opening 9 is trapezoidal in order to the closed position of the connection between the connecting arm 5 and the end section 2 as tight a fit as possible Allow engaging nose 8; for this purpose the shorter one of the two parallel trapezoidal sides facing the end section 2, the engaging nose in the engaged position on this trapezoidal side 8 comes to rest when the connecting arm 5 through the internal stress of the clamping ring 1 in the indicated at A in Fig. 8 Direction is pulled.

In Fig. 3, the area of the punched bracket 7 with the Engagement nose 8 in a perspective view in detail shown. Under the bracket 7 is shown in Fig. 4 in detail Fastening tab 6 of the connecting arm 5 with the engagement opening 9 passed, after which the engaging nose 8 for a positive connection is bent into the engagement opening 9 (see Fig. 8).

5 and 6 a position of the clamping ring 1 is shown, in which the mounting bracket 6 with the free end already under the bracket 7 was introduced. Furthermore, as a modification in 5 schematically indicates that in the fastening tab 6 also several - e.g. rectangular - engaging openings 9 are provided can be to different circumferential lengths of the clamping ring 1st to enable in the closed state.

6 that the two end sections 2, 3 already overlap each other and the fastening tab 6 already was introduced under the bracket 7, but not yet positive connection, i.e. no mutual interference yet the engaging parts 8, 9 is present.

From Fig. 7 is the overlapping position in cross section two end sections 2, 3 can be seen, the fastening tab 6 is surrounded by the bracket 7. Furthermore, the general is V-shaped Cross-sectional shape of the ring body of the clamping ring 1 can be seen, where "V-shaped" means that at least one Leg of the cross-sectional profile is inclined to the ring plane has to clamp the container rim and lid when To achieve the closing process, as shown in FIG. 15 will be explained. In the apex, the V cross section is even - as can also be seen from FIG. 7 - generally relatively round until be flat.

In Fig. 8 it is shown on the longitudinal section that the engaging nose 8 is bent in its front end portion to enter the engaging hole 9 to engage positively in the connecting arm 5 and thus a reliable connection between the two end sections 2, 3 to produce.

9 shows a view of another clamping ring 1, in which the fastening tab 6 in the direction away from Ring body 1 '(see FIG. 16) of the clamping ring 1 is bent. Hereby takes place as shown in Fig. 10 after pushing the Connecting arm 5 via the bracket 7 with the engaging nose 8 Locking the engagement lug 8 into the engagement opening 9 in the connecting arm 5, without the engagement nose 8 being plastically deformed should be.

This situation is shown in plan view in FIG it can be seen that the engagement opening 9 in the connecting arm 5 when pushed over the bracket 7, partially from the connecting arm 5 is covered and shown in dashed lines is the engagement projection 8, which over the rear Edge of the engagement opening 9 comes to rest when the connecting arm 5 is stretched again in direction A.

12 is another embodiment of the clamping ring 1, in which an engagement lug 8 'in the connecting arm 5 is provided within an opening 9. The engagement nose 8 ' can be done simply by punching the opening 9 and by bending are generated in the connecting arm 5. After passing the fastening tab 6 under the bracket 7 the engagement nose hooks 8 'on the bracket 7 to form a positive connection between the end section 2 and the fastening tab 6 or the end section 3 to manufacture.

13 is a similar embodiment with hook-shaped Engaging parts 8 '' shown; in detail, the fastening tab 6 several sawtooth-like on their surface Engagement parts 8 '' (see also Fig. 14), which lead through the fastening tab 6 under the bracket 7 behind lock this and so a positive connection between cause the two free end sections 2, 3.

In Fig. 15, a device 13 for schematically is partially Closing a clamping ring 1 as shown above. Here, the oblique leg 14 of the V-shaped cross section the clamping ring 1 against a cover 15 for closing a Container 16 pressed. Between the cover 15 and the curl 17th of the container 16 is a seal 18 for tight sealing provided and these parts are contracted by the Clamping ring 1 or its oblique leg 14 pressed against each other. The device 13 has a plurality around the container 16 circular, cone-shaped in regular intervals Locking parts 19, which are fixed to a bracket 20. When the holder 20 is lowered in the direction 21 press the closing parts, which flare conically upwards 19 against the circumference of the clamping ring 1 and thereby oblique Leg 14 against the lid 15, whereby the lid 15 against the Roll 17 of the container 16 is pressed.

16 is a schematic bottom view of the device 15 shown in FIG. Here is the circular arrangement of the conical locking parts 19 can be seen through their circular surfaces the clamping ring 1 is brought to a smaller radius. As can be seen, the tensioning lever 4 is in the closed position, and the engaging parts 8, 9 and 9, 7 become automatic brought into the engaged position when the clamping ring 1 is narrowed. If necessary - in the embodiment according to FIGS. 1 to 8 Engagement nose 8 still with the help of an automatically radially adjusted Stamp (in Fig. 16 only very schematically with a Arrow 22 indicated) plastically deformed to the situation to achieve of Fig. 8.

Claims (14)

Tensioning ring (1) for closing a container (16) with a lid (15), with an open ring body (1 ') which is generally V-shaped in cross section, the free end sections (2, 3) of which, at least when the tensioning ring (1 ) overlap each other, a tension lever (4) being pivotally mounted on one free end section (3), to which a connecting arm (5) is articulated in order to pull the other end section in the direction of one end section when the tension ring (1) is closed , characterized in that the connecting arm (5) and the other end section (2) have cooperating engagement parts (8,9; 8 ', 7'; 8 '', 7) for mutual positive engagement when the tensioning ring (1) is closed, at least one engagement projection (8; 8 ';8'') and at least one engagement opening (9; 7) being provided as engagement parts. Clamping ring according to claim 1, characterized in that a radially projecting bridge-like bracket (7) is provided on the other end section (2) as the engagement part. Clamping ring according to claim 2, characterized in that the bracket (7) is formed by punching and bending. Clamping ring according to claim 2 or 3, characterized in that the bracket (7) is formed with a hook or nose-shaped engagement projection (8) directed away from the tensioning lever (4), whereas the connecting arm (5) has at least one engagement opening (9) . Clamping ring according to one of claims 2 to 4, characterized in that the connecting arm (5) with a fastening tab (6) extends under the bracket (7). Clamping ring according to claims 4 and 5, characterized in that the engagement projection (8) is bent radially inwards into the engagement position (9) in the engagement position. Clamping ring according to claim 4 or 5, characterized in that the engagement projection (8) is locked in the engagement position with an edge of the engagement opening (9). Clamping ring according to claim 7, characterized in that the connecting arm (5) or its fastening tab (6) is bent away at the end from the open ring body (1 ') for an automatic resilient engagement of the engagement projection (8) in the engagement opening (9). Clamping ring according to one of claims 1 to 8, characterized in that the engagement opening (9) is trapezoidal, the shorter of the two parallel trapezoidal sides being arranged facing away from the clamping lever (4). Clamping ring according to claim 2, characterized in that the connecting arm (5) has at least one projecting engagement lug (8 ') as an engagement part for engagement with the bracket (7). Clamping ring according to claim 10, characterized in that the engagement nose (8 ') is formed by punching and bending. Clamping ring according to claim 10, characterized in that at least one sawtooth-like engagement lug (8 ') is formed on the connecting arm (5). Clamping ring according to one of claims 1 to 12, characterized in that a split pin (11) is provided to secure the clamping lever (4) in the closed state in a manner known per se, which is through openings (10) in the clamping lever (4) and through a fixedly attached to one end section (3) tab (12). Device (13) for closing a clamping ring (1) according to one of claims 1 to 13 for closing a container (16) with a lid (15), the clamping ring (1) in the closed state closing the lid (15) with an oblique leg (14) of its V cross-section presses against a roller (17) of the container (15), and the engagement parts (8, 9) on the connecting arm (5) connected to one end section (3) via the tensioning lever (4) in the closed position ) or at the other end section (2) are automatically brought into engagement, characterized in that several pin-shaped closing parts (19) are provided which are circular around the container (15) and taper conically towards the bottom and when lowering press the clamping ring (1) radially together relative to the container (15) in order to push the two end sections (2, 3) over one another.

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