DE102010060671B4 - Integrated radial plug for multicomponent cartridges with mixer - Google Patents

Abstract

Apparatus (100) for dispensing a mixture comprising at least two material components comprising: a cartridge (200) having at least a first container (201) for receiving the first material component and a second container (202) for receiving the second material component, the first container (201) at least one first opening (205) for exiting the first material component, and the second container (202) at least one second opening (206) for exiting the second material component, and at least one fastening and closing portion (402) for opening or closing for closing the at least one first opening (205) and the at least one second opening (206), wherein the attachment and locking portion (402) comprises at least a first engagement element (405) for engaging the first opening (205) to close it and a second one Engaging member (406) for engaging the second opening (206) for closing the same, dad urch characterized in that the first opening (205) and the second opening (206) are arranged such that by a rotational movement of the fastening and closure portion (402) about a major axis, the first opening (205) and the second opening (206) simultaneously are opened, and that the first opening (205) lies in a plane which extends radially relative to the main axis of the substantially cylindrically shaped mixing housing, and that the second opening (206) lies in a plane which extends radially extends relatively from the main axis of the substantially cylindrically shaped mixing housing.

Description

TECHNICAL AREA

The present invention relates to a device for dispensing a mixture consisting of at least two material components comprising: a cartridge having at least a first container for receiving the first material component and a second container for receiving the second material component, wherein the first container at least a first opening for the exit of first material component, and the second container has at least one second opening for exiting the second material component, and at least one fastening and closing portion for opening or closing the at least one opening and / or the at least second opening, wherein the fastening and closing portion at least a first engaging member for engaging the first opening for closing the same and / or a second engaging member for engaging the second opening for closing the same.

STATE OF THE ART

Delivery devices with a static mixer are known in various designs. For example, the dispensing device may be a double syringe or a multiple syringe with two or more hollow cylindrical cartridge containers. The contents are transferred from the cartridge chambers to a mixing area by means of a double or multiple punch. The components are mixed as they pass through a mixer housing and then ejected out of the housing.

Before the device is used, the delivery openings of the cartridge chambers are closed by means of a closure, for example a sealing surface. In use, the openings are released by an operation by the user, so that the material can be brought into the mixer housing.

When designing the sealing mechanism, it should be noted that the components emerging from the cartridge chambers, on the one hand, should not travel too long before the mixing process. In addition, a contamination of the components in the cartridges should be prevented. When re-closing the openings clogging by other components should be excluded, so that a reuse of the cartridge is possible.

The WO 2007/073 607 A1 describes a disposable dispenser having a multi-component cartridge or syringe, a mixer with a mixer housing, and closing means for closing or opening the outlets of the multi-component cartridge or syringe.

The US 2005/0 057 637 A1 discloses a cartridge, especially for two or more components.

OBJECT OF THE INVENTION

Proceeding from this, it is an object of the present invention to provide a device for dispensing two or more material components, in which on the one hand the dead volume is minimized, and on the other hand allows the most clean opening and closing of the cartridge openings.

TECHNICAL SOLUTION

This object is achieved by the provision of a device for dispensing a mixture consisting of at least two material components according to claim 1. Features of advantageous embodiments emerge from the dependent claims.

A device according to the invention for dispensing a mixture consisting of at least two material components comprises: a cartridge having at least one first container for receiving the first material component and a second container for receiving the second material component, wherein the first container has at least one first opening for exit of the first material component, and the second container has at least one second opening for exiting the second material component, and at least one attachment and closure portion for opening the at least first opening and / or the at least second opening, wherein the attachment and closure portion comprises at least a first engagement element for engaging the first opening for closing the same and / or a second engaging element for engaging in the second opening for closing the same. The fastening and closure section is designed such that the first opening and / or the second opening can be brought out of engagement with the respective opening by a radial movement of the first engagement element and / or of the second engagement element relative to the first opening and the second opening.

This new concept has a radial pin lock. The double syringe has, for example, a cartridge with molded mixing element on the syringe.

A small turn is enough for the opening, which inevitably goes completely synchronously. The "waste wedge" created at the opening is significantly smaller in volume than the dead volume in conventional axial openings. Also, it is now possible to already achieve a distribution of the currents when entering the mixer. To seal a "plug-cap" may be provided, which is the link between the mixing tube and double syringe.

In particular, the device has at least one mixing housing, the interior of which communicates with the interior of the first container and the interior of the second container via the first opening or via the second opening.

The mixing housing is preferably formed substantially hollow cylindrical.

In particular, the device has at least one static mixing structure which is arranged within the mixing housing.

The static mixing structure is preferably connected to the cartridge.

In a particularly preferred embodiment, the static mixing structure and the cartridge are integrally formed.

In a preferred embodiment, the first container and / or the second container has a first structure or a second structure, in which the first opening and the second opening are arranged. The two structures can be two domes which protrude beyond the cylinders and are each provided with a radial opening bore. In this pin engage the mixing tube for closing and reopening.

The device comprises in particular at least one linearly movable dispensing element ( 300 ).

The first opening and / or the second opening are preferably arranged radially relative to the main axis of the substantially cylindrically shaped mixing housing and / or radially relative to the linear movement of the dispensing element.

In a preferred embodiment, the first engagement element and / or the second engagement element are arranged radially relative to the main axis of the substantially cylindrical mixing housing and / or radially relative to the linear movement of the dispensing element.

In particular, the device has a mixing housing structure which has the mixing housing and a fastening and closing section, wherein the fastening and closing section comprises at least the first engagement element and / or the second engagement element.

The first opening and / or the second opening are preferably aligned radially in the same direction.

In a particularly preferred embodiment, the first opening and the second opening in different directions, in particular opposite, aligned.

The device may comprise at least one connecting element which fixes the mixing housing to the cartridge axially immovable.

By contrast, the connecting element preferably secures the mixing housing so as to be radially rotatable on the cartridge.

In particular, the connecting element and mixing housing structure have an anti-rotation device for preventing relative rotation of the connecting element relative to the mixing housing structure. Thus, the mixing housing structure is rotated with the mixing housing together with the connecting element. Since the mixing housing structure has the two engagement elements, they are rotated relative to the cartridge and pulled out of the openings during opening (or pushed into the openings when closing).

The connecting element may comprise at least one fastening mechanism for rotatably attaching the connecting element to the cartridge.

For the features described protection should be claimed in all conceivable combinations.

BRIEF DESCRIPTION OF THE FIGURES

Further features and advantages of the present invention will become apparent from the description of preferred embodiments in conjunction with the following figures. Show it:

1 A representation of the double syringe according to the invention;

2 An illustration of the cartridge mixer structure of the double syringe according to the invention;

3 A sectional view of the double syringe according to the invention;

4 A sectional view of a portion of the double syringe according to the invention;

5 A schematic representation of the cartridge mixer structure with attached housing structure;

6 A side sectional view of a portion of the double syringe according to the invention;

7 A perspective sectional view of a portion of the double syringe according to the invention;

8th A sectional view of the closure mechanism of the double syringe according to the invention in a closed state in a plane perpendicular to the central axis;

9 A sectional view of the shutter mechanism of the double syringe according to the invention in an open state in a plane perpendicular to the central axis;

10a A vertical sectional view of another embodiment of a closure mechanism according to the invention;

10b A vertical sectional view of the closure mechanism according to the invention from the 10a ;

11 A horizontal sectional view of the locking mechanism of the 10a ;

12 A vertical sectional view of another embodiment of a closure mechanism according to the invention; and

13 A vertical sectional view of another embodiment of a closure mechanism according to the invention.

DESCRIPTION OF A PREFERRED EMBODIMENT

The 1 shows an embodiment of a double syringe 100 according to the present invention. The double syringe 100 has a cartridge mixer structure 200 , a dispensing element 300 , a mixed housing structure 400 and a connecting element 500 on.

In the 2 is a section of the cartridge mixer structure 200 shown. The cartridge mixer structure 200 includes a first container 201 for receiving a first material to be applied and a second container 202 for receiving a second material to be applied. To the first container 201 is a first dome 203 , to the second container 202 a second dome 204 connected. The dome 203 and 204 are formed essentially cuboid. The interior of the dome 203 . 204 is in each case with the interior of the first container 201 or the second container 202 connected. The first cathedral 203 and the second dome 204 each have a first outlet opening (not visible) or a second outlet opening 206 on top of that in the containers 201 respectively. 202 recorded material can escape. The openings 205 . 206 are radial at the domes 203 respectively. 204 arranged. The first opening and the second opening 206 are on different sides of the first cathedral 203 or the second cathedral 204 arranged. Thus, the material passes radially in different directions into the interior of the mixing housing structure 400 one.

In addition, the cartridge mixer structure has 200 a mixing element 207 on, in one piece with the containers 201 . 202 and the dome 203 . 204 is trained. The mixing element 207 includes webs and guide elements 208 passing through the mixing element 207 subdivided into single strands and merge again through passing material strand. In this way it will be in the first container 201 recorded material with the second container 202 mixed material is mixed.

As seen from the sectional view of the double syringe 100 from the 3 becomes clear, there is the Ausbringelement 300 essentially two delivery rams 301 respectively. 302 placed in the interior of the first container 201 or in the interior of the second container 202 can be inserted to the material over the first dome opening 205 or the second cathedral opening 206 deploy.

The mixing element 207 is in the illustrated assembled state of a substantially hollow cylindrical housing 401 the mixing housing structure 400 enclosed. That from the openings 205 respectively. 206 on different sides from the Domen 203 . 204 Spilled material is under the by the Ausbringelement 300 applied pressure in the interior of the housing 401 and by the structure of the static mixing element 207 pressed to pass through the mixing element 207 to be mixed. At the front end, the housing has an opening 402 (see. 1 ), through which the mixed material can escape.

The cartridge mixer structure 200 and the mixing housing structure 400 are through the connecting element 500 connected with each other. Like from the 4 shows, the connecting element has 500 a basic body 501 which delimits an inner volume in which the dome 203 and 204 are included. The connecting element 500 is over a locking mechanism 502 with the cartridge mixer structure 200 rotatably connected by a predetermined angle. The locking mechanism 502 has noses 503 on, which is a disc-like flange 209 which is at the front of the container 201 and 202 is arranged, reach behind. To the rotation of the connecting element 500 To facilitate, is an actuator 504 provided that with the main body 501 is integrally formed.

Like from the 5 becomes clear, has the mixing housing structure 400 next to the case 401 a fastening and closure section 402 on, by means of the holding and closing element 500 rotatable about a predetermined angle about the central axis A of the cartridge mixer structure 200 is attached. The mixing housing structure 400 rotates together with the connecting element 500 ,

From the 5 in particular, the structure of the attachment and closure section 402 the mixing housing structure 400 out. The fastening and closing section 402 has a flange part 403 on, in the assembled state in the 4 illustrated shoulder 505 of the connecting element 500 engages behind the mixing housing structure 400 axially immovable on the cartridge mixer structure 200 to keep. In addition, the attachment and closure section has 402 a first closure element 404 and a second closure member (not shown), each one of the radial dome openings 205 respectively. 206 can close.

The sectional view according to the 6 shows the double syringe 100 in a side view. At the first container 201 is the first cathedral 203 arranged. The opening 205 of the first cathedral 203 is through the closure element 404 locked. The closure element 404 has a radially extending pin 405 on, the, at a corresponding position of the mixing housing structure 400 relative to the cartridge mixer structure 200 , in the opening 205 engages and closes this. By a relative rotation of the mixing housing structure 400 relative to the cartridge mixer structure 200 can the pin 405 out of engagement with the opening 205 brought and the opening 205 thus be opened.

The sectional view according to the 7 shows the double syringe 100 in a closed state. A first pin 405 a first closure element 404 engages in a first opening to the first container 201 to close the cartridge. A second pin 406 a second closure element 404 reaches into a second opening 206 one to the second container 202 to close the cartridge. By a rotation of the connecting element 500 that the mixed housing structure 400 rotationally fixed axially on the cartridge mixer structure 200 stops, the cones can 405 and 406 simultaneously pulled out of the respective openings and thus the container 201 and 202 be opened at the same time.

In the 8th and 9 each is a sectional view of the shutter mechanism of the double syringe according to the invention 100 shown in a closed state or in an open state in a plane perpendicular to the central axis.

In the closed state according to the 8th are the dome 203 and 204 the cartridge mixer structure 200 relative to the attachment and closure portion 402 the mixing housing structure 400 arranged radially so that the pins 405 and 406 into the respective openings 205 respectively. 206 the dome 203 respectively. 204 engage radially.

Upon rotation of the connecting element 500 that has corresponding engaging means 407 respectively. 506 (see. 9 ) rotatably with the mixing housing structure 400 connected, the pins are 405 and 406 from the respective openings 205 respectively. 206 the dome 203 respectively. 204 removed to the openings 205 and 206 release.

With the help of the double syringe 100 with a radial pin lock 402 takes place opening and closing the container 201 and 202 completely in sync. In contrast to the axial opening mechanism, the dead volume is reduced. In addition, a splitting of the streams can already be achieved when the materials enter the mixer.

The pipe tappet has another novelty for which protection is claimed separately and in combination with features already described.

In order to prevent unwanted retraction of the plunger and thus release of the tube contents, each of the plunger cylinder has at least one, in particular two or more, barbs per plunger tube. The barbs are rotatable or bendable about a pivot point, so that they can be pushed into the cartridge chambers via a projection provided in the cartridge wall. When resetting attempt, however, the hooks spread so that they can not overcome the projection "backwards". With the help of this technical measure, the restraining force of the inserted into the cartridge chambers plunger and thus the security is increased.

The 10a shows a vertical sectional view of another embodiment of a closure mechanism according to the invention 10 for a double cartridge with a mixer connected to it.

From a double cartridge 11 (Side-by-Side) extends a dome 12 with an outlet opening 13 , This is not in the illustrated state in engagement with a pin rotatable relative to it 14 ie the opening 13 is unlocked. This allows material to escape from a cartridge chamber and into the mixer 15 arrive in a mixing tube (housing 16 ) is arranged.

In the 10b is the locking mechanism from the 10a shown, but in the closed state. The pin 14 reaches into the opening 13 and closes these. A closure element that holds the pin 14 includes, is opposite the cartridge 11 or the dome 12 with the opening 13 rotatably arranged. The closure element with the pin 14 can by turning the housing 16 opposite the cartridge 11 or the dome 12 be turned and so either the opening 13 free or close. The closure element is therefore with the housing 16 rotatably connected.

The 11 shows a horizontal sectional view of the shutter mechanism of the 10a in open condition. Two cartridge chambers 11a and 11b each lead into a dome 12a respectively. 12b with openings 13a respectively. 13b , The locking mechanism 10 has a closure element that is relative to the openings 13a and 13b rotatable pins 14a and 14b includes. The rotatable closure element is non-rotatable with the housing 16 the dispensing device connected.

The 12 shows a closure mechanism according to the invention, with a cartridge 11a . 11b connected is. Here is the case 16 with the mixer arranged therein 15 on the cartridge 11a . 11b over a lock 17 connected. The closure 17 can at the in the 12 illustrated dispensing device for a single application after attaching the housing 16 no longer be opened, ie the housing can, for. B. are not removed for a mixer change. One or more elastic elements 18 snap when closing behind one with the cartridge 11a . 11b connected flange 19 one. This creates a positive connection. Because the ends of the elastic elements 18 are not accessible, is a removal of the housing 16 from the cartouche 11a . 11b not possible.

In the 13 a dispensing device for multiple use is shown, ie the housing can, for. B. be removed for a mixer change. Unlike in the embodiment according to the 12 has the closure 17 one or more elastic elements 18 on, next to a bending section 18a a catch 18b and an operation section 18c exhibit. The latching noses 18b the elastic elements 18 engage behind the flanges 19 and keep the case 16 with the double cartridge 11a . 11b firmly connected as long as they are engaged. By squeezing the operating sections 18c However, the locking lugs 18b out of engagement with the flange 19 to be brought. This allows the housing 16 from the cartouche 11a . 11b subtracted from.

Both in the embodiment according to the 12 as well as according to the 13 can be done by turning the case 16 opposite the double cartridge 11a . 11b the openings 13a and 13b , as shown in the previous figures, closed by means of pins and opened.

Claims (14)

Contraption ( 100 ) for dispensing a mixture consisting of at least two material components comprising: a cartridge ( 200 ) with at least one first container ( 201 ) for receiving the first material component and a second container ( 202 ) for receiving the second material component, wherein the first container ( 201 ) at least one first opening ( 205 ) to the exit of the first material component, and the second container ( 202 ) at least one second opening ( 206 ) to the outlet of the second material component, and at least one fastening and sealing portion ( 402 ) for opening or closing the at least first opening ( 205 ) and the at least second opening ( 206 ), wherein the fastening and closure section ( 402 ) at least one first engagement element ( 405 ) for engaging in the first opening ( 205 ) for closing the same and a second engaging element ( 406 ) for engaging the second opening ( 206 ) for closing the same, characterized in that the first opening ( 205 ) and the second opening ( 206 ) are arranged such that by a rotational movement of the fastening and closing portion ( 402 ) about a major axis the first opening ( 205 ) and the second opening ( 206 ) are opened or closed simultaneously and that the first opening ( 205 ) is located in a plane which extends radially relative to the main axis of the substantially cylindrically shaped mixing housing, and that the second opening ( 206 ) lies in a plane which extends radially relative to the main axis of the substantially cylindrically shaped mixing housing. Contraption ( 100 ) according to claim 1, characterized in that the device ( 100 ) at least one mixing housing ( 401 ), the interior of which via the first opening ( 205 ) or via the second opening ( 206 ) with the interior of the first Container ( 201 ) and the interior of the second container ( 202 ). Contraption ( 100 ) according to claim 2, characterized in that the mixing housing ( 401 ) is formed substantially hollow cylindrical. Contraption ( 100 ) according to claim 2 or 3, characterized in that the device ( 100 ) at least one static mixed structure ( 207 ), which within the mixing housing ( 401 ) is arranged. Contraption ( 100 ) according to claim 4, characterized in that the static mixing structure ( 207 ) is connected to the cartridge. Contraption ( 100 ) according to claim 5, characterized in that the static mixing structure ( 207 ) and the cartridge are integrally formed. Contraption ( 100 ) according to one of the preceding claims, characterized in that the first container ( 201 ) and / or the second container ( 202 ) a first structure ( 203 ) or a second structure ( 204 ), in which the first opening ( 205 ) or the second opening ( 206 ) are arranged. Contraption ( 100 ) according to one of the preceding claims, characterized in that the device ( 100 ) at least one linearly movable dispensing element ( 300 ). Contraption ( 100 ) according to one of the preceding claims 3 or 8, characterized in that the first opening ( 205 ) and the second opening ( 206 ) lie in each case in a plane which is radially relative to the main axis of the substantially cylindrically shaped mixing housing ( 401 ) and / or the first opening ( 205 ) and the second opening ( 206 ) relative to the linear movement of the dispensing element ( 300 ) are arranged. Contraption ( 100 ) according to one of the preceding claims 3, 8 or 9, characterized in that the first engagement element ( 405 ) and / or the second engagement element ( 406 ) lie in each case in a plane which is radially relative to the main axis of the substantially cylindrically shaped mixing housing ( 401 ) and / or relative to the linear movement of the Ausbringelements ( 300 ) are arranged. Contraption ( 100 ) according to one of the preceding claims, characterized in that the device ( 100 ) a mixed housing structure ( 400 ), which the mixing housing ( 401 ) and a fastening and closure section ( 402 ), wherein the fastening and sealing portion ( 402 ) at least the first engagement element ( 405 ) and / or the second engagement element ( 406 ). Contraption ( 100 ) according to one of the preceding claims, characterized in that the first opening ( 205 ) and the second opening ( 206 ) in different directions, in particular opposite, are aligned. Contraption ( 100 ) according to one of the preceding claims, characterized in that the device ( 100 ) at least one connecting element ( 500 ), which the mixing housing ( 401 ) attached to the cartridge axially immovable. Contraption ( 100 ) according to claim 13, characterized in that the connecting element ( 500 ) the mixing housing ( 401 ) rotatably attached to the cartridge, wherein the connecting element ( 500 ) and the mixing housing structure ( 400 ) an anti-rotation device for preventing relative rotation of the connecting element ( 500 ) relative to the mixing housing structure ( 400 ) exhibit.

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