WO2012066073A1

WO2012066073A1 - Radial bung closure

Info

Publication number: WO2012066073A1
Application number: PCT/EP2011/070342
Authority: WO
Inventors: Frank Ritter
Original assignee: Ritter Gmbh
Priority date: 2010-11-19
Filing date: 2011-11-17
Publication date: 2012-05-24
Also published as: DE102010060671A1; DE102010060671B4

Abstract

A double syringe according to the invention has a first container 201 for accommodating a first material to be discharged, and a second container 202 for accommodating a second material to be discharged. A first dome 203 is connected to the first container 201, and a second dome 204 is connected to the second container 202. The first dome 203 and the second dome 204 respectively have a first outlet orifice (not visible) and a second outlet orifice 206 through which the material accommodated in the containers 201 and 202 can emerge. The orifices 205, 206 are arranged radially on the domes 203 and 204, respectively. Furthermore, the double syringe has a mixing element 207 which is formed integrally with the containers 201, 202 and the domes 203, 204. A discharge element consists substantially of two discharge plungers 301 and 302 which can be pushed into the interior of the first container 201 and into the interior of the second container 202, respectively, in order to discharge the material via the first dome orifice 205 and the second dome orifice 206, respectively. Upon rotation of a connecting element 500, which is connected non-rotatably to the mixing housing structure 400, bungs 405 and 406 are removed from the respective orifices 205 and 206 of the domes 203 and 204 in order to open up the orifices 205 and 206. With the aid of the double syringe 100 with a radial bung closure 402, the containers 201 and 202 are opened and closed completely synchronously.

Description

TITLE

Radial pin lock TECHNICAL FIELD

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 first opening and / or the at least second opening, wherein the

Attachment and closure portion has at least one first engagement element for engaging in the first opening for closing the same and / or a second engagement element for engaging in the second opening for closing the same.

STATE OF THE ART

Dispensing devices with a static mixer are known in various designs. For example, the dispensing device can 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 will pass through

Mixed mixer housing and then discharged from 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 locking mechanism, it should be noted that the out of the

Cartridge chambers exiting components on the one hand before the mixing process to no to travel long distances. 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.

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 comprising 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 the 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 fastening and closing portion for opening or closing the at least one opening and / or the at least one second opening, wherein the

Attachment and closure portion has at least one first engagement element for engaging in the first opening for closing the same and / or a second engagement 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

Represents 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.

In particular, the device comprises at least one linearly movable dispensing element (300). The first opening and / or the second opening are preferably radially relative to

Main axis of the substantially cylindrically shaped mixing housing and / or arranged radially relative to the linear movement of the Ausbringelements. 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

Includes 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 a

Anti-rotation to prevent relative rotation of the connecting element relative to the mixing housing structure on. 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:

A representation of the double syringe according to the invention;

A representation of the cartridge mixer structure of the invention

Double syringe;

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

A sectional view of a portion of the double syringe according to the invention; A schematic representation of the cartridge mixer structure with attached housing structure;

A side sectional view of a portion of the invention

Double syringe;

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

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;

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;

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

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

A horizontal sectional view of the closure mechanism of Figure 10a; Figure 12 is a vertical sectional view of another embodiment of a closure mechanism according to the invention; and

Figure 13 is a vertical sectional view of another embodiment of a

Locking mechanism according to the invention.

DESCRIPTION OF A PREFERRED EMBODIMENT

FIG. 1 shows an exemplary embodiment of a double syringe 100 according to the present invention. The dual syringe 100 includes a cartridge mixer structure 200

Dispensing element 300, a mixing housing structure 400 and a connecting element 500 on.

FIG. 2 shows a section of the cartridge mixer structure 200. The

Cartridge mixer structure 200 includes a first container 201 for receiving a first material to be dispensed and a second container 202 for receiving a second material to be dispensed. A first dome 203 is connected to the first container 201, and a second dome 204 is connected to the second container 202. The dome 203 and 204 are formed substantially cuboid. The interior of the dome 203, 204 is connected to the interior of the first container 201 and the second container 202, respectively. The first dome 203 and the second dome 204 each have a first outlet opening (not visible) or a second outlet opening 206, through which the material received in the containers 201 or 202 can emerge. The openings 205, 206 are arranged radially on the domes 203 and 204, respectively. The first opening and the second opening 206 are disposed on respective different sides of the first dome 203 and the second dome 204, respectively. Thus, the material enters the interior of the mixing housing structure 400 radially in different directions.

Moreover, the cartridge mixer structure 200 has a mixing element 207 formed integrally with the containers 201, 202 and the domes 203, 204. The

Mixing element 207 includes webs and guide elements 208, one through the

Subdivide mixing element 207 passing material strand several times into single strands and merge again. In this way, in the first container 201

absorbed material mixed with the second container 202 recorded material. As is clear from the sectional view of the double syringe 100 from FIG. 3, the dispensing element 300 consists essentially of two dispensing tappets 301 and 302, respectively, which can be inserted into the interior of the first container 201 or into the interior of the second container 202 to apply the material over the first dome opening 205 and the second dome opening 206, respectively.

The mixing element 207 is in the illustrated assembled state of a in the illustrated

Substantially hollow cylindrical housing 401 of the mixing housing structure 400 enclosed. The material exiting the ports 205 and 206 on different sides of the domes 203, 204 is pressed under the pressure exerted by the dispensing element 300 into the interior of the housing 401 and through the structure of the static mixing element 207 to pass through the mixing element 207 to be mixed. At the front end, the housing has an opening 402 (see Fig. 1) through which the mixed material can escape.

The cartridge mixer structure 200 and the mixing housing structure 400 are interconnected by the connector 500. As can be seen from FIG. 4, the connecting element 500 has a main body 501 which delimits an internal volume in which the domes 203 and 204 are accommodated. The connector 500 is rotatably connected to the cartridge mixer structure 200 by a predetermined angle through a shutter mechanism 502. The shutter mechanism 502 has tabs 503 that engage behind a disc-like flange 209 located at the front of the containers 201 and 202. In order to facilitate the rotation of the connecting element 500, an actuating element 504 is provided, which is integrally formed with the base body 501.

As can be seen from FIG. 5, the mixing housing structure 400 is adjacent to the housing

401 has a fastening and closing portion 402 which is rotatably fixed by means of the holding and closing member 500 by a predetermined angle about the central axis A of the cartridge-mixer structure 200. The mixing housing structure 400 rotates together with the connecting element 500.

From the figure 5 is in particular the structure of the fastening and closure portion

402 of the mixing housing structure 400. The fastening and sealing portion 402 has a flange portion 403, which engages in the mounted state shown in the figure 4 shoulder 505 of the connecting element 500 to hold the mixing housing structure 400 axially immovable to the cartridge mixer structure 200. In addition, the attachment and closure portion 402 includes a first closure member 404 and a second closure member (not shown), each of which may close one of the radial dome openings 205 and 206, respectively.

The sectional view according to FIG. 6 shows the double syringe 100 in a side view. At the first container 201, the first dome 203 is arranged. The opening 205 of the first dome 203 is closed by the closure element 404. The closure member 404 has a radially extending pin 405 which, in a corresponding position of the

Mixed housing structure 400 relative to the cartridge mixer structure 200, engages the opening 205 and closes. By relative rotation of the mixing housing structure 400 relative to the cartridge mixer structure 200, the pin 405 can be disengaged from the opening 205 and the opening 205 thus opened.

The sectional view according to FIG. 7 shows the double syringe 100 in one

closed state. A first pin 405 of a first closure member 404 engages a first opening to close the first container 201 of the cartridge. A second pin 406 of a second closure member 404 engages a second opening 206 to close the second container 202 of the cartridge. By a rotation of the connecting element 500, which the mixing housing structure 400 rotatably axially on the

Cartridge mixer structure 200 holds, the pins 405 and 406 can simultaneously pulled out of the respective openings and thus the containers 201 and 202 are opened at the same time.

FIGS. 8 and 9 each show a sectional view of the locking mechanism of the double syringe 100 according to the invention in a closed state or in an opened state in a plane perpendicular to the central axis.

In the closed state according to FIG. 8, the dome 203 and 204 of the cartridge mixer structure 200 are relative to the fastening and closing section 402 of FIG

Mixed housing structure 400 arranged radially so that the pins 405 and 406 radially engage in the respective openings 205 and 206 of the dome 203 and 204, respectively. Upon rotation of the connecting element 500, which is non-rotatably connected to the mixing housing structure 400 via corresponding engaging means 407 or 506 (see Fig. 9), the pins 405 and 406 from the respective openings 205 and 206 of the dome 203 and 204, respectively removed to release the openings 205 and 206.

With the aid of the double syringe 100 with a radial pin closure 402, opening and closing of the containers 201 and 202 takes place completely synchronously. 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. However, during the reset attempt, the hooks spread so that they can not overcome the projection "backwards." With the aid of this technical measure, the restraining force of the plunger inserted into the cartridge chambers and thus safety is increased.

FIG. 10 a shows a vertical sectional view of a further embodiment of a closure mechanism 10 according to the invention for a double cartridge with a mixer connected thereto.

From a double cartridge 11 (side-by-side), a dome 12 extends with one

Outlet opening 13. This is in the state shown not engaged with a pin 14 rotatable relative to it, i. the opening 13 is unlocked. Thus, material can escape from a cartridge chamber and enter the mixer 15, which in a

Mixing tube (housing 16) is arranged. FIG. 10b shows the locking mechanism from FIG. 10a, but in the closed state. The pin 14 engages in the opening 13 and closes it. A closure element comprising the pin 14 is rotatably arranged with respect to the cartridge 11 or the dome 12 with the opening 13. The closure element with the pin 14 can be rotated by rotation of the housing 16 relative to the cartridge 11 and the dome 12 and thus optionally free or close the opening 13. The

Closure element is therefore rotatably connected to the housing 16.

FIG. 11 shows a horizontal sectional view of the closure mechanism of FIG. 10a in the opened state. Two cartridge chambers I 1 a and 1 lb respectively open into a dome 12 a and 12 b with openings 13 a and 13 b. The shutter mechanism 10 includes a shutter member which includes rotatable pins 14a and 14b relative to the openings 13a and 13b. The rotatable closure member is rotatably connected to the housing 16 of the

Dispensing device connected.

FIG. 12 shows a closure mechanism according to the invention, which is provided with a

Cartridge I Ia, I Ib is connected. In this case, the housing 16 with the mixer 15 arranged therein is connected to the cartridge I Ia, I Ib via a closure 17. Of the

Closure 17 can no longer be opened in the dispensing device shown in Figure 12 for a single application after attaching the housing 16, i. the housing may e.g. not be removed for a mixer change. When closing, one or more elastic elements 18 engage behind a flange 19 connected to the cartridge 11a, 11b. This creates a positive connection. Since the ends of the elastic members 18 are not accessible, a peeling of the housing 16 of the cartridge I Ia, I Ib is not possible.

In Figure 13, a dispensing apparatus for multiple use is shown, i. the housing may e.g. be removed for a mixer change. Unlike in the

Embodiment according to FIG. 12, the closure 17 has one or more elastic elements 18 which, in addition to a bending section 18a, have a latching nose 18b and a latching nose 18b

Operating portion 18c have. The one or more detents 18b of the elastic members 18 engage behind the flanges 19 and thus keep the housing 16 with the double cartridge I Ia, 1 lb firmly connected, as long as they are engaged. By squeezing the

However, operating portions 18c may disengage the detents 18b from the flange 19 are brought. Thus, the housing 16 can be withdrawn from the cartridge I Ia, 1 lb.

Both in the embodiment according to FIG. 12 and according to FIG. 13, by turning the housing 16 relative to the double cartridge I Ia, I Ib, the openings 13a and 13b can be closed and opened by means of pins, as shown in the previous figures.

Claims

A device (100) for dispensing a mixture consisting of at least two material components comprising:

a cartridge having at least a 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) has at least one first opening (205) for exiting the first material component, and the second container (202) has at least one second opening (206) for exiting the second material component, and

at least one attachment and closure portion (402) for opening or closing the at least one first opening (205) and / or the at least one second opening (206), wherein

the attachment and closure portion (402) has at least one first engagement member (405) for engaging the first opening (205) to close it and / or a second engagement member (406) for engaging the second opening (206) to close it;

characterized in that

the attachment and closure portion (402) is configured such that the first opening (205) and / or the second opening (206) is defined by a radial movement of the first engagement member (405) and / or the second engagement member (406) relative to the first Opening (205) or to the second opening (206) with the respective opening (205,206) is disengageable.

2. Device (100) according to claim 1, characterized in that

the device (100) has 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)

Connection stands.

3. Device (100) according to claim 2, characterized in that

the mixing housing (401) is substantially hollow cylindrical.

4. Device (100) according to claim 2 or 3, characterized in that the device (100) has at least one static mixing structure (207) which is arranged inside the mixing housing (401).

5. Device (100) according to claim 4, characterized in that

the static mixing structure (207) is connected to the cartridge.

6. Device (100) according to claim 5, characterized in that

the static mixing structure (207) and the cartridge are integrally formed.

7. Device (100) according to one of the preceding claims, characterized

marked that

the first container (201) and / or the second container (202) have a first structure (203) or a second structure (204), in which the first opening (205) and the second opening (206) are arranged.

8. Device (100) according to one of the preceding claims, characterized

marked that

the device (100) comprises at least one linearly movable dispensing element (300).

9. Device (100) according to one of the preceding claims 3 or 8, characterized in that

the first opening (205) and / or the second opening (206) radially relative to

Main axis of the substantially cylindrically shaped mixing housing (401) and / or radially relative to the linear movement of the Ausbringelements (300) are arranged.

10. Device (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) are arranged radially relative to the main axis of the substantially cylindrically shaped mixing housing (401) and / or radially relative to the linear movement of the deployment element (300).

11. Device (100) according to one of the preceding claims, characterized

marked that

the device (100) comprises a mixing housing structure (400) comprising the

Mixing housing (401) and a fastening and closure portion (402), wherein the fastening and closure section (402) comprises at least the first engagement element (405) and / or the second engagement element (406).

12. Device (100) according to one of the preceding claims, characterized

marked that

the first opening (205) and / or the second opening (206) are aligned radially in the same direction.

13. Device (100) according to one of the preceding claims, characterized

marked that

the first opening (205) and the second opening (206) are oriented in different directions, in particular opposite directions.

14. Device (100) according to one of the preceding claims, characterized

marked that

the device (100) has at least one connecting element (500) which fixes the mixing housing (401) axially immovably to the cartridge.

15. Device (100) according to claim 14, characterized in that

the connecting element (500) the mixing housing (401) radially rotatably on the

Cartridge attached, taking

the connecting element (500) and the mixing housing structure (400) a

Anti-rotation device for preventing relative rotation of the connecting element (500) relative to the mixing housing structure (400).