EP2402092B1 - Extruder - Google Patents

Description

Technical area

The invention relates to a squeezing device according to the preamble of claim 1.

For sealing or gluing single or multi-component materials are used, which are housed in containers, such as foil bags, cartridges or the like container. For receiving such a container and for expressing a one-component or multi-component mass from the container for the above purpose, a squeezing device of the aforementioned type is used.

State of the art

From the EP 0 758 564 A1 a generic Auspressvorrichtung is known, which has an actuating lever. This lever has a fork-shaped end, on which runs a transverse pin. This transverse pin in turn acts on a tiltable feed element, which is provided for advancing a drive rod.

Another Auspressvorrichtung is for example in DE 195 33 223 A1 disclosed. A there designated as a transport lever lever body is mounted on a rotation axis and has on one side of the axis of rotation a Hebelschubarm and on the other hand, the rotation axis a Hebelgriffarm, wherein the Hebelschubarm force acting upon actuation of the Hebelgriffarms on a drive rod attached to a Ausdrückgestänge. The otherwise disclosed as Einkomponentenvorrichtung Auspressvorrichtung of the prior art provides for the actuation of the lever body before a further lever and a designated as an actuator handle. The drive body has a roller which cooperates with a rolling head of the Hebelschubarms. The Auspressgestänge has a piston rod which over the Drive body is progressively advanced while a corresponding amount of mass is displaced from the single container. A similar Einkomponentenauspressvorrichtung is in DE 195 33 155 A1 disclosed. Desirable is a balanced in terms of the effort by a user power transmission to the Auspressgestänge. One possibility for this is for a Einkomponentenauspressvorrichtung in the DE 10 2007 057 111 A1 proposed.

A particular problem arises in terms of a squeezing, in addition to the squeezing of one-component masses in a special way for squeezing multicomponent masses from at least one container, i. especially suitable for two or more containers. For example, two containers can be arranged in one or two container receptacles of a functional section of the above-mentioned squeezing and pressed out via the Auspressgestänge. A previously proposed lever assembly with a single lever body, as previously provided in a handling section, may be modified on one hand to act on two or more intended drive bodies on two or more rods of the extrusion linkage for the two or more containers. The drive body may be coupled via a yoke or a feed plate or the like, so that a force of a single lever body is still transmitted to the at least two drive body. The disadvantage here is on the one hand, the limited transferable via a yoke or a feed sheet maximum force. The formation of a yoke or a feed plate and an optionally complex guide such provided separately from the lever body coupling means may be force limiting. Due to insufficient guidance or excessive force, a coupling element, such as a yoke or feed plate or the like, can be tilted or bent unintentionally, so that asymmetries and clamping conditions can occur in the handling section. This can make the handling of the squeezing device considerably more difficult and, in the worst case, damage the squeezing device. It would be desirable to have a squeezing device which is designed for squeezing multicomponent masses and receiving two or more containers in an improved manner and is nevertheless also suitable for squeezing single-component masses and for receiving a single container.

Presentation of the invention

At this point, the invention begins, the object of which is a squeezing device for squeezing out single- or multicomponent masses from at least one container in which a handle portion is arranged with a lever assembly in an improved manner to allow a squeezing of one-component as well as multi-component masses with a simple yet reliable power transmission. In particular, a coupling between the lever arrangement and Auspressgestänge the squeezing device for squeezing of masses from at least two containers to be improved.

The object with regard to the squeezing device is achieved by the invention with a squeezing device of the type mentioned, in which according to the invention the features of the characterizing part of claim 1 are provided.

A squeezing device according to the invention is characterized in that each of the at least two forked sections opens into a respective lever push arm, and that a first drive element associated with the first fork section is held on the first rod and a second drive element associated with the second fork section is held on the second rod.

According to the invention, the lever body has a fork which has a fork stem and at least two fork sections, that is to say a number of two, three, four or more fork sections. Preferably, two fork sections are provided. Each of the fork sections is associated with a container which can be arranged in the squeezing device. For this purpose, the at least two fork sections open into at least two lever push arms. The fork stem of the lever body opens into the lever arm of the lever body. Preferably, a single fork stem is provided.

Overall, the concept of the invention allows a relatively easily realizable, preferably one-piece, lever body with a fork according to the invention. The lever arm takes in the application mode, preferably under the action of an associated lever handle of the squeezing, directly on the power of a user. Each of the lever thrust arms is in a rotational movement about the axis of rotation of the lever body mounted there directly the power - ie in particular without a proposed from the prior art coupling element - directly to each of the drive body on. In other words, the lever body acts on actuation of the Hebelgriffarms practically directly transmitting force on the drive body attached to the Auspressgestänge. This applies in the case of a single or multiple containers for a one-component or multi-component mass. In the present case, each of the lever push arms acts on actuation of the Hebelhebel arm directly transferring force on each of the Auspressgestänge fasten drive body, each of the drive body is associated with a container of a number of containers in the squeezing. According to the invention, the extrusion rod has at least two rods, wherein at least one aforementioned drive body is fastened to each of the rods. Each of the containers may or may not contain a different mass. For example, it is possible to extrude two-component masses via two containers. The containers may for example be arranged parallel to one another in a single container receptacle or, if appropriate, individually in two container receptacles designed for each of the containers.

Overall, the concept of the invention, when translating a rotational movement of the lever body into a linear movement of at least two driving bodies, i. two or more drive bodies, an improved power transmission by each of the lever push arms acts directly on each of the drive body and beyond the lever body is comparatively simple. For this purpose, according to the invention, the fork explained above is provided with at least two fork sections and a fork stem. The concept of the invention makes force-transmitting coupling elements, such as yokes, feed plates or the like superfluous, since the lever body-preferably one-piece as such-forms the required number of lever push arms.

Even with very different forces, which are directed towards the drive side body, the lever arrangement is sufficiently stable in itself. A squeezing of masses of two or more containers is possible without the disadvantages known in the prior art. In particular, according to the concept of the invention, the lever arrangement does not tend to tilt or tilt. For example, virtually no torsional moments arise by means of the lever arrangement according to the invention, so that overall a complicated mounting of the parts of the lever arrangement, in particular the drive body, can largely be dispensed with or considerably simplified. The concept of the invention makes it possible, in a particularly preferred manner, to actuate each of the drive bodies directly and without a coupling element via one of the lever push arms.

Advantageous developments of the invention can be found in the dependent claims and specify in particular advantageous ways to realize the above-described concept within the scope of the problem and with regard to further advantages.

Preferably, the lever body is mounted on the axis of rotation by means of the at least two fork sections. This is a particularly stable bearing of the lever body, namely at each of the fork sections, on the axis of rotation. For this purpose, a bifurcation point of the fork is preferably arranged on the other side of the axis of rotation; So forms part of the other side of the axis of rotation arranged Hebelgriffarms. Preferably, the at least two fork sections form at least one partial section of the lever handle arm. In other words, already at the forked position the Hebelgriffarm branches into a number of at least two fork sections. According to this preferred variant, a bearing of the lever body takes place only in the region of each fork section.

In an alternative variant, in principle, it can also be provided that the lever body is mounted on the axis of rotation by means of the fork stem. A storage of the fork stem - in particular a single fork stem at a single or a number of locations on the axis of rotation - can be made sufficiently stable as needed. In principle, this further variant can sufficiently realize the advantages of the concept of the invention. In this further variant, it is provided in particular that a forked position of the fork on one side of the axis of rotation forms part of the Hebelschubarms and the at least two fork sections each extend exclusively in the region of a Hebelschubarms.

Preferably, the axis of rotation is in the form of a, in particular arranged in a fulcrum, bearing pin formed. This is preferably provided for supporting the lever body at one or more locations. In particular, according to the above-mentioned above preferred variant, the bearing pin passes through the at least two fork sections and is thus provided at least two places to a particularly stable mounting of the lever body. According to the other last-mentioned variant, the bearing pin passes through the fork stem, in particular in the fulcrum.

In a particularly preferred embodiment, the lever body is formed at least in the region of the fork by means of two flat plates. In a modification which is preferred according to this refinement, the flat sheets in the fork stem lie against one another and are spaced apart from one another in the at least two fork sections. With a higher number of fork sections - for example three, four or five fork sections - the lever body can be comparatively easily formed by means of a corresponding number of three, four, five or more flat plates. Each of the flat sheets forms beyond the fork, in particular at least one side of the axis of rotation, a fork section.

In a particularly preferred embodiment, at least one lever push arm on a drive body on actuation of the Hebelgriffarms force-transferable rollable fork end. The fork end can be expediently designed to improve a power transmission between Hebelschubarm and drive body or tune with regard to an expelled mass. A rotational movement of the Hebelschubarms can be implemented as needed particularly effective in a linear movement of the drive body. Preferably, the fork end has a nose-shaped rolling head. A rolling head can be used to effectively implement the rotational movement of the Hebelschubarms in a linear movement of the drive body have appropriate designed nose contour.

Basically, two or more of the lever thrust arms of a lever body may be formed identically at their fork ends. In particular, all lever arms of the lever body can be identical.

In an alternative particularly preferred development, a first lever push arm can be designed differently from a second lever push arm. For example, axial thrusts or feed characteristics provided for first and second drive bodies can be designed differently. Preferably, a first lever push arm may have a different length from a second lever push arm. Thus, an axial thrust or an axial travel of the first and second lever thrust arm associated first and second drive body can be made different over the stroke of a Hebelschubarms.

Additionally or alternatively, it has proved to be advantageous for a first lever push arm to have a fork end different from a second lever push arm. In particular, it can be provided that a first fork end has a nose contour of a first rolling head, which differs from a nose contour of a second rolling head on a second fork end. By means of a rolling curve of a forked end associated with a nose contour, the characteristic of an axial thrust and / or axial travel at a specified stroke can be produced particularly advantageously - i. additionally or alternatively to the aforementioned, optionally different length of a Hebelschubarms. In summary, different leverage ratios can be set up by varying the length of different lever push arms and / or a nose contour of different rolling heads for different fork ends. This leads to different axial thrusts and / or feed characteristics of the associated drive body. These measures can be suitably matched in each case to the requirements of the container associated with a lever-pushing arm and the mass received therein.

Preferably, a drive body is designed as a clamping element, which is tilted on a rod of Auspressgestänges upon application of force and clamped fastened. In particular, a circular disk shape of the drive body has proven to be advantageous. This facilitates the attachment of a drive body practically independent of direction a rod of Auspressgestänges. However, a drive body can also be square, eg cuboid or trapezoidal. Advantageously, a drive body per actuation stroke of the Hebelschubarms on a rod of Auslassgestänges by a feed amount in the axial direction displaceable. The feed amount is preferably variable but predetermined. In this way, for the system of rod, drive body and associated fork end of a Hebelschubarms tuned to the associated container or the mass mounted therein amount of feed in the axial direction per actuation stroke set.

According to the invention, a first drive body assigned to the first lever push arm is fastened on a first bar and a second drive body assigned to the second lever push arm is mounted on a second bar.

In particular, a first drive body may be held with offset to a second drive body. This leads advantageously to an adaptation of a lever ratio to a drive body associated with the container. Further developing the concept of the invention, provision is made in particular for a first drive body to be displaceable by a first feed amount and for a second drive body to be displaceable by a second feed amount, wherein the first feed amount may be different than the second feed amount. This leads, in particular, to a demand-adapted offset of the first drive body to the second drive body and to a different axis of rotation for each lever arm rotation axis distance between the axis of rotation and point of a fork end on the drive body.

In a particularly preferred development of the invention, provision is made for a first and / or a second drive body to form a front drive body arranged in each case relative to a rear drive body on the same rod of the drive linkage. The front and rear drive bodies are preferably part of a drive unit. The drive unit preferably has a holder holding the drive body. The holder preferably has an arm fixed to an axle for each front and rear drive body for spacing the front and rear drive bodies.

Particularly preferred is a squeezing device with a lever body with exactly two fork sections and a single fork stem. For this development, two drive body are provided as a front drive body. A third and a fourth drive body are each rear relative to a front drive body Drive body held on the same rod of the drive linkage. Preferably, by a holder and the third and fourth drive body is kept at a distance to a front drive body.

A front drive body is tilted when force is applied in the feed direction clamped on a rod. A rear drive body is tilted when force is applied against the feed direction clamped on a rod. The front drive body is advantageously used to propel the rod when squeezing a mass from a container. The rear drive body is preferably for holding the rod in position as long as a counterforce of the mass exists and a lever pushing arm exerts no force, i. when the user releases the lever handle.

embodiments

Embodiments of the invention will now be described below with reference to the drawing. This is not necessarily to scale the embodiments, but the drawing, where appropriate for explanation, executed in a schematized and / or slightly distorted form. With regard to additions to the teachings directly recognizable from the drawing reference is made to the relevant prior art. It should be noted that various modifications and changes may be made in the form and detail of an embodiment without departing from the general idea of the invention. The disclosed in the description, in the drawing and in the claims features of the invention may be essential both individually and in any combination for the development of the invention. In addition, all combinations of at least two of the features disclosed in the description, the drawings and / or the claims fall within the scope of the invention. The general idea of the invention is not limited to the exact form or detail of the preferred embodiment shown and described below or limited to an article which would be limited in comparison to the subject matter claimed in the claims. For the given design ranges, values within the stated limits should also be disclosed as limit values and be arbitrarily usable and claimable. For simplicity, the same reference numerals are used below for identical or similar parts or parts with identical or similar function.

• Fig. 1 eine teilperspektivische Seitenansicht einer Auspressvorrichtung zum Auspressen von mehrkomponentigen Massen aus vorliegend zwei Behältnissen;
• Fig. 2 eine Schnittansicht eines Handhabungsabschnitts eines Gehäuses mit einer verbesserten Hebelanordnung bei der Auspressvorrichtung der Fig. 1;
• Fig. 3 eine perspektivische Teilansicht eines Hebelkörpers mit einem Teil des Hebelgriffarms sowie zwei Hebelschubarmen, die mittels der beim Hebelkörper vorgesehenen Gabelung mit zwei Gabelabschnitten und einem Gabelstamm ausgebildet sind;
• Fig. 4 eine teilperspektivischen Seitenansicht des Hebelkörpers der Fig. 3;
• Fig. 5A, 5B eine Seitenansicht eines Hebelkörpers in zwei Funktionsstellungen - vor und nach einem Betätigungshub - und einem daraus ersichtlichen Versatz eines ersten und zweiten Antriebskörpers auf einer ersten und zweiten Stange des Auspressgestänges;
• Fig. 6 eine perspektivische Ansicht auf eine Antriebseinheit mit einem vorderen und hinteren Antriebskörper auf jeweils derselben ersten bzw. zweiten Stange des Antriebsgestänges mit einem Halter für vier Antriebskörper und in Funktionsstellung vor einem Betätigungshub durch einen Hebelkörper bei einer Auspressvorrichtung der Fig. 1 bis Fig. 5B;
• Fig. 7 eine Vorderansicht in axialer Richtung auf einen Hebelkörper der Auspressvorrichtung der Fig. 1 bis Fig. 6 mit einer daraus ersichtlichen Gabelung mit zwei Gabelabschnitten und einem Gabelstamm sowie mit formabgewandelten Antriebskörpern.

Further advantages, features and details of the invention will become apparent from the following description of the preferred embodiments and from the drawing; this shows in:

• Fig. 1 a partial perspective side view of a squeezing device for squeezing multicomponent masses of present two containers;
• Fig. 2 a sectional view of a handling portion of a housing with an improved lever assembly in the squeezing of the Fig. 1 ;
• Fig. 3 a partial perspective view of a lever body with a part of the Hebelgriffarms and two Hebelschubarmen, which are formed by means of the provided at the lever body fork with two fork sections and a fork stem;
• Fig. 4 a partial perspective side view of the lever body of Fig. 3 ;
• Fig. 5A, 5B a side view of a lever body in two functional positions - before and after an operating stroke - and an apparent offset thereof from a first and second drive body on a first and second rod of Auspressgestänges;
• Fig. 6 a perspective view of a drive unit with a front and rear drive body on each of the same first and second rod of the drive linkage with a holder for four drive body and in functional position before an operating stroke by a lever body in a squeezing the Fig. 1 to Fig. 5B ;
• Fig. 7 a front view in the axial direction of a lever body of the squeezing the Fig. 1 to Fig. 6 with an apparent therefrom fork with two fork sections and a fork stem and with formabgewandelten drive bodies.

Fig. 1 shows a squeezing 100 for expressing one-component and presently especially multi-component masses for filling, gluing or sealing or the like applications in the construction sector. Such and other masses are filled in two presently designed as a cartridge containers 2, which in a suitable Container receptacle 21 of a housing 1 of the squeezing 100 are arranged. The housing 1 in the present case extends essentially along an axial direction A and has a functional section 20 and a handling section 10. The functional section 20 essentially has the container receptacle 21 and, at a machining-side distal end 23 of the functional section 20, a machining head 22 into which a non-illustrated extrusion opening of each container 2 extends. Masses dispensed from the containers 2 are optionally mixed in the processing head 22 and dispensed at the processing-side distal end 23 of the functional portion 20 to a location to be processed.

The handling portion 10 of the housing 1 has a protective housing 12, from which in the axial direction A to the user-side proximal end 13 extending support post and on the lower side of a transversely molded to the axial direction A handle 14 goes off. A user can hold the squeezing device 100 with a palm on the handle 14 and operate with the fingers a lever handle 15 of the handling section 10. For this purpose, the lever handle 15 is pulled to the handle 14 to perform a pressing out of the multicomponent masses from the containers 2 triggering Betätigungshub.

The lever handle 15 continues as shown Fig. 2 can be seen as part of a lever assembly 30 in the handling section 10 a Hebelgriffarm 34 of a lever body 31 away. Upon actuation of the lever handle 15, a pressing out of the masses from the two containers 2 effecting Auspressgestänge 24 is actuated. The Auspressgestänge 24 acts, each with a piston 25 in each case one of the pistons 25 associated unspecified opposing piston in the respective container 2, via which the mass located in the respective container 2 is pressed and discharged into the machining head 22 of the housing 1. In Fig. 2 in each case only one container 2 and a container receptacle 21 is shown. However, as can be seen from the further figures, the squeezing device 100 serves to receive two containers 2 in a receptacle receptacle 21 provided in each case for a container, which are arranged parallel to one another in the axial direction A in the functional section 20.

In the handling section 10, the lever arrangement 30 is provided with a lever body 31, which merges into the lever grip 15 at its portion protruding from the protective housing 12. The lever body 31 is thus directly under the operation of the lever handle 15th actuated. In the lever assembly 30, the lever body 31 is mounted on a rotational axis 32 formed as a bearing pin. The lever body 31 has on one side of the axis of rotation a Hebelschubarm 33 and on the other hand, the rotation axis 32 on a Hebelgriffarm 34, which merges into the lever handle 15 in an apparent angled course. Upon actuation of the Hebelgriffarms 34 via the lever handle 15 of the Hebelschubarm 33 acts in a rotational movement D in the axial direction A force transmitting to a Ausdrückgestänge 24 fixed drive body 41 and sets the rotating movement D of Hebelschubarms 33 in a linear movement of the drive body 41.

How out Fig. 3 it can be seen, the lever body 31 has a present two fork sections 33.1, 33.2 and a fork stem 35 forming bifurcation 36. The two fork sections 33.1, 33.2 open in two - according to Fig. 2 identically designated - lever thrust arms 33, of which in the side view of Fig. 2 only one is apparent. As such, the lever body 31 is mounted on the axis of rotation 32 by means of the two fork sections 33.1, 33.2, ie by means of its two lever push arms 33. The bearing pin of the rotation axis 32 passes through the fork sections 33.1, 33.2. In other words, the fork sections 33.1, 33.2 also form part of the Hebelgriffarms 34. In other words, a crotch 37 of the fork 36 on the other side of the axis of rotation 32 is part of the Hebelgriffarms 34. On the one hand the axis of rotation 32 extend the lever thrust arms 33 in the form of the fork sections 33.1, 33.2 , The present invention designed as a bearing pin rotation axis 32 is capable of the lever body 31 at two locations - namely at a first fork portion 33.1 and a second fork portion 33.2 - store particularly stable rotating. The lever body 31 as such is certainly up to its transition into the lever handle 15 of two in Fig. 3 apparent flat plates 31.1, 31.2 formed in the fork stem 35 are adjacent to each other and in the two fork sections 33.1, 33.2 are spaced. Concretely, a first flat plate 31.1 forms a first lever push arm 33 and a second flat plate 31.2 forms a second lever push arm 33, ie a first fork section 33.1 or a second fork section 33.2.

Each of the lever push arms 33 has at the fork end of a first fork section 33.1 or second fork section 33.2 a nose-shaped first and second rolling head 38.1 and 38.2, respectively. The first and second Abwälzkopf 38.1, 38.2 has a on the first and second drive body 41.1, 41.2 rollable nose contour N. The nose contour N opposite a Abwälzkopf 38.1, 38.2 a back contour R on. Both the nose contour N of Abwälzköpfe 38.1, 38.2 and the back contour R are present identical. The indicated for only the second lever arm 33 length L between the axis of rotation 32 and the fork end is designed in the present case for both lever thrust arms 33 identical.

A first and second drive body 41.1, 41.2 is present rotationally symmetrical to a rod 25.1, 25.2 formed as an annular disc and held in a tilted state by clamping respectively on the rod 25.1, 25.2 of the Auspressgestänges 24. As further on from Fig. 6 4, the first and second drive body 41.1, 41.2 next to a third and fourth drive body 41.3, 41.4 part of a drive unit 40, wherein the drive body 41.1, 41.2, 41.3, 41.4 are held in the drive unit 40 by a holder 42 at a distance.

First, based on the Fig. 4 and Fig. 5A, Fig. 5B explains the operation of the lever assembly 30 upon actuation of the lever handle 15, wherein the Fig. 4 and Fig. 5A, 5B as a side view of Fig. 3 are to be understood and the further remarks on the basis of Fig. 4 and Fig. 5A, Fig. 5B for the fork sections 33.1, 33.2 and the rolling heads 38.1, 38.2 of each of the lever push arms 33 are to be understood. By means of the provided on the lever body 31 bifurcation 36 feed forces can be divided on the present two drive bodies 41.1, 41.2 in the form of a respective clamping element in a particularly reliable manner. By a rotational movement D of the lever body 31 about the axis of rotation 32, as in FIGS. 5A and 5B is clarified, the drive body 41 are moved linearly in the axial direction A. This process can be repeated arbitrarily.

Fig. 4 shows the detail of the lever assembly 30 of the Fig. 3 together with the Auspressgestänge 24 and a drive body 41 representative of the drive body 41.1, 41.2 in a side view. A Hebelschubarm 33 formed by a fork portion 33.1 has at the fork end a nose-shaped Abwälzkopf 38.1, in the in Fig. 4 apparent manner with its nose contour N on the drive body 41 force-transmitting attacks. The lever body 31 of the lever assembly 30 is present in a position of Fig. 1 or Fig. 2 shown, ie without actuation by the fingers of a user. This position of a lever body 31 also shows the Fig. 5A , Upon actuation of the lever handle 15, this is attracted to the handle 14, so that the one hand of the axis of rotation 32 located Hebelschubarm 33 moves forward and thereby first tilted the drive body 41, so that this clamps on its rod of Auspressgestänges 24. Subsequently, the nose contour N of the rolling head 38.1 rolls on the drive body 41 and pushes it with its rod forward. By a thus designed by D rotational movement of the Abwälzkopfes 38.1, the drive body 41 is advanced along the axial direction A. The rotational movement D of the Hebelschubarms 33 is converted into a linear movement of the drive body 41 along the axial direction A. An axial movement of the drive body 41 can be adjusted as needed. Thus, the nose contour N of the rolling heads 38.1, 38.2 can be formed at the fork ends in order to achieve a specific characteristic of the axial thrust and the axial travel for the drive body 41. The presently provided with a fork lever body 31 transports all drive body 41 per actuation stroke of Hebelschubarms 33 by a variable but predetermined feed amount in the axial direction A. Off Fig. 5A It can be seen that the two drive bodies 41.1, 41.2 parallel to each other at the beginning of an operating stroke - in Fig. 5A Therefore, only the front contour of a drive body 41 is shown. At the end of the operating stroke, the drive bodies 41.1, 41.2 with a slight axial offset from one another are respectively clamped on their rods 25.1 and 25.2. That is why in Fig. 5B both the first drive body 41.1 and the second drive body 41.2 recognizable. A first feed amount of the first drive body 41.1 differs here from a second feed amount of the second drive body 41.2. This can be based on the one hand by different opposing forces when squeezing the masses in two different containers. Different amounts of feed, as in relation to FIGS. 5A and 5B are clarified, can also be achieved by the fact that for the first fork portion 33.1 and the second fork portion 33.2 different center distances - measured between the rotation axis 32 and the point of application of the nose contour N of the first and second Abwälzkopfes 38.1, 38.2 on the first and second drive body 41.1 , 41.2 - be set. A length L of a Hebelschubarms 33, as in FIGS. 5A and 5B is located, can be individually set for each lever arm on the first and second fork portion 33.1, 33.2. It is also possible to set a different nose contour N for each fork section 33.1, 33.2.

Fig. 6 shows the previously mentioned drive unit 40 with four drive bodies 41.1, 41.2, 41.3, 41.4 and a holder 42. The holder 42 has a holder axis 43 and outgoing from the holder axis 43 four arms 44.1, 44.2, 44.3, 44.4, which the associated drive body 41.1, 41.2, 41.3, 41.4 hold back and space.

The first drive body 41.1 forms on the first rod 25.1 of the Auspressgestänges 24 a front drive body with back bearing a nose contour N of a first Rolling head 38.1. A third drive body 41.3 forms on the same first rod 25.1 a rear Antriebskörper- this optionally in abutment with a stop rod 45th

The second drive body 41.2 forms a front drive body on the second rod 25.2 of the Auspressgestänges 24 in back contact with a nose contour N of a second Abwälzkopfes 38.2. The fourth drive body 41.4 is held on the same second rod 25.2 of the drive linkage 24 as a rear drive body - this possibly in contact with a stop rod 45th

The operation of the drive unit 40 results at feed, as explained above, under tilted and clamping determination in any case the front drive body 41.1, 41.2 respectively on the rod 25.1 and 25.2 when force is applied by a Abwälzkopf 38.1 and 38.2. If the user releases the lever grip 15, then there is still a counterpressure on the drive bodies 41.1, 41.2 against the feed direction as a result of the inertia of the masses to be squeezed out in the containers 2. By means of the opposing force thus caused against the feed direction, the rear drive bodies 41.3, 41.4 tilted and now held by clamping on the rod 25.1 and 25.2. In the end, the drive unit 40 thus retains its position even when the lever grip 15 is released until the masses have been pressed out in the retained position of the drive unit 40. After completion of the ejection process initiated by a single feed stroke, the drive unit with all drive bodies 41.1, 41.2, 41.3, 41.4 is returned to a starting position. Upon reaching the starting position, the rear drive body 41.3, 41.4 strike the back of the stop rod 45 and thus terminate the return operation. Among other things, for the execution of the return operation, the drive body 41.1, 41.2, 41.3, 41.4 are brought by the arms 44.1, 44.2, 44.3, 44.4 respectively to the rod 25.1, 25.2 in a non-tilted position. This can be done by pressing the in Fig. 1 shown acting on the holder 42 levers 11 are supported. When caused by the holder 42 straight position of the drive body 41.1, 41.2, 41.3, 41.4 to the rods they are freely movable with play respectively on the rod 25.1 and 25.2.

Subsequently, a new operating stroke can be initiated by pressing the lever handle 15 by the user.

Fig. 7 shows a modified embodiment of a system of the lever handle 15 continuing lever body 31 in combination with a drive unit 40 ', the modified Drive body 46.1, 46.2 has. The lever body 31 is performed with the lever handle 15 largely identical to the lever body explained above. Likewise, the drive unit 40 'is designed similar to the drive unit 40 with a holder 42. Only the drive bodies 46.1, 46.2 are varied in contrast to the annular disk-shaped drive bodies 41. In the present case, the drive body 46.1, 46.2 - also disk-shaped - each held on a rod 25.1, 25.2 of the Auspressgestänges 24. The disc of the drive body 46.1, 46.2 in the present case has a composite contour. The contour has a substantially trapezoidal tapered holding surface 47 and a subsequent to the tapered narrow side substantially rectangular tilt surface 48. A rear side of the drive body 46.1, 46.2 attacking Abwälzkopf 38.1, 38.2 preferably engages the rear side of the drive body 46.1, 46.2 particularly easy to tilt and thus clamped to a rod 25.1, 25.2 determine force transmitting preferably on the tilting surface 48.

Claims (15)

1. Dispenser (100) for extruding one-component or multi-component compounds from at least one container (2), comprising:

   a housing (I) extending substantially along an axial direction (A), with a functional portion (20) with at least one container holder (21), and

   a handling portion (10) with a lever arrangement (30) for operating an extrusion linkage (24) with a first rod (25.1) and a second rod (25.2) whereby compounds are extruded from the at least one container (2),

   the lever arrangement (30) comprising a lever body (31) mounted on a pivot (32) and having a lever thrust arm (33) on one side of the pivot (32) and a lever grip arm (34) on the other side of the pivot (32), the lever thrust arm (33) acting with transmission of force on a drive body (41) attached to the extrusion linkage (24) upon actuation of the lever grip arm (34), and the lever body (31) having a bifurcation (36) forming at least two fork portions (33.1, 33.2) and a trunk (35), said trunk (35) merging into the lever grip arm (34),

   characterized in that

   each of the at least two fork portions (33.1, 33.2) merges into a lever thrust arm (33), and

   a first drive body (41.1) assigned to the first fork portion (33.1) is held on the first rod (25.1) and a second drive body (41.2) assigned to the second fork portion (33.2) is held on the second rod (25.2).
2. Dispenser according to Claim 1, characterized in that
   the lever body (31) is mounted on the pivot (32) by means of the at least two fork portions (33.1, 33.2).
3. Dispenser according to Claim 1 or Claim 2, characterized in that a bifurcation point (37) of the bifurcation (36) forms part of the lever grip arm (34) on the other side of the pivot (32).
4. Dispenser according to any one of Claims 1 to 3, characterized in that the at least two fork portions (33.1, 33.2) form at least part of the lever grip arm (34).
5. Dispenser according to Claim 1, characterized in that
   the lever body (31) is mounted on the pivot (32) by means of the trunk (35).
6. Dispenser according to any one of Claims 1 to 5, characterized in that the pivot (32) is in the form of a bearing pin.
7. Dispenser according to any one of Claims 1 to 6, characterized in that at least in the region of the bifurcation (36), the lever body (31) is formed from two flat metal plates (31.1, 31.2) which are juxtaposed in the trunk (35) and are spaced apart in the at least two fork portions (33.1, 33.2).
8. Dispenser according to any one of Claims 1 to 7, characterized in that at least one lever thrust arm (33) has a force-transmitting fork end capable of rolling on the surface of a drive body (41) upon actuation of the lever grip arm (34): in particular, the fork end has a neb-shaped roll-over head (38.1, 38.2).
9. Dispenser according to any one of Claims 1 to 8, characterized in that a first lever thrust arm (33) has a different length (L) from a second lever thrust arm (33) and/or a first lever thrust arm (33) has a fork end configured differently from a second lever thrust arm (33): in particular, a first roll-over head (38.1) has a different neb contour (N) from a second roll-over head (38.2).
10. Dispenser according to any one of Claims 1 to 9, characterized in that an in particular disc-shaped drive body (41) is configured as a jamming element which, when acted upon in a force-transmitting manner by a lever thrust arm, tilts and is jammed on a rod (25.1, 25.2) of the extrusion linkage (24), and a drive body (41) is displaceable with a rod (25.1, 25.2) of the extrusion linkage (24) with an in particular variable yet predetermined advance in the axial direction (A) upon each operating stroke of a lever thrust arm (33).
11. Dispenser according to any one of Claims 1 to 10, characterized in that the first drive body (41.1) is held with an offset from the second drive body (41.2).
12. Dispenser according to any one of Claims 1 to 11, characterized in that a first drive body (41.1) is displaceable with a first advance and a second drive body (41.2) is displaceable with a second advance, and the amount of the first advance may be different from that of the second advance.
13. Dispenser according to any one of Claims 1 to 12, characterized in that first and second drive bodies (41.1, 41.2) [are] held on the same rod (25.1, 25.2) of the drive linkage (24), each [such pair] being arranged as a forward drive body (41.1, 41.2) and a rear drive body (41.1, 41.2) kept apart by a holder (42) in a drive unit (40) of the forward and rear drive bodies (41.1, 41.2).
14. Dispenser according to any one of Claims 1 to 13, characterized in that third and fourth drive bodies (41.3, 41.4) are held as a rear drive body (41.3, 41.4) kept apart from a forward drive body by an in particular spring-loaded holder (42) in a drive unit (40), the holder (42) having a holder shaft (43) with four radial arms (44.1, 44.2, 44.3, 44.4), each arm holding one of the drive bodies (41.1, 41.2, 41.3, 41.4).
15. Dispenser according to any one of Claims 1 to 14, characterized in that a third and/or fourth drive body (41.3, 41.4) is/are held fast on a rod (25.1, 25.2) by tilting and jamming when force is applied in the opposite direction to the advance direction.

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