EP2198978A1 - Dispensing tool for pasty substances - Google Patents

Abstract

The tool (1) has a replaceable container (2) including a paste-like substance (3), and a support element (4) on which the container is arranged. A guide holder (5) is arranged axial to a dispensing direction (6) of the substance from the container. The guide holder partially includes the support element, and a dispensing device (7) dispenses the substance. A part of the guide holder or the entire guide holder and/or the support element is movable from an axis of the dispensing direction by folding away parallel or at an angle to the dispensing direction.

Description

Technical area

The invention is based on a dispensing tool for pasty substances in interchangeable containers according to the preamble of the first claim.

State of the art

Such Dispensierwerkzeuge, which are referred to as injection gun, Caulk Gun or Application Gun, and the example of the documents EP 1454844A1 and WO 2005 / 120720A1 are known to serve the metered delivery of a pasty substance from interchangeable containers. Dispensing tools of this type are typically provided with a manually, electrically or pneumatically actuated drive. Electrically driven dispensing tools are manufactured, for example, by the MILWAUKEE ELECTRIC TOOL CORPORATION, eg model series 6560-2X.

Mentioned dispensing tools, however, have the disadvantage that, in order to remove the exchangeable containers, in particular if they are bags, the dispensing tool in each case is opened at the front to the expulsion direction. In this case, a part of the dispensing tool must be removed, typically front is a cap with a funnel unscrewed to remove the empty container and a full insert. On the one hand, this procedure is cumbersome, since the removed part of the dispensing tool has to be parked separately; on the other hand, the process is time-consuming, in particular if the end piece has to be unscrewed manually and subsequently screwed on again.

Presentation of the invention

Object of the present invention is therefore to provide an improved device of the type mentioned.

In particular, the dispensing tool should be suitable for the optimized processing of filled with pasty substance interchangeable containers, typically bags and cartridges. In this case, a arranged for processing on the support element interchangeable container in the partially or completely deflated state should be easily and quickly removable. The dispensing tool should also simplify the loading of the dispensing tool and make it faster executable. According to the invention this is achieved by the features of the first claim.

It is therefore the essence of the invention that in the dispensing tool, a part or the entire guide holder and / or the support element from the axis of the expulsion direction are movable, in particular by folding away in parallel or at any angle to Austriebsrichtung. As a result, the support element can be loaded with interchangeable containers or interchangeable containers are removed.

Among other things, the advantages of the invention can be seen in the fact that the loading and removal of interchangeable containers can be carried out quickly and easily by the above-mentioned mobility of parts or the entire guide holder and / or the support element from the axis of the expulsion direction.

Further aspects of the invention are the subject of further independent claims. Particularly preferred embodiments of the invention are the subject of the dependent claims.

Brief description of the drawings

In the following, embodiments of the invention will be explained in more detail with reference to the drawings. The same elements are provided in the various figures with the same reference numerals. The flow direction of the media is indicated by arrows.

• Fig. 1 verschiedene Aufführungsformen eines Dispensierwerkzeugs;
• Fig. 2 Seitenansichten der Aufführungsform von Figur 1a mit hochgeklapptem Stützelement 4;
• Fig. 3 Seitenansicht der Aufführungsform von Figur 1a mit eingeklapptem Stützelement 4 vor dem Bewegen der Führungsstange 16 in Austriebsrichtung 6;
• Fig. 4 Seitenansichten des Vorgangs des formschlüssigen Verbindens des Trichters 8 mit dem eingeklappten Stützelement 4 durch Bewegen der Führungsstange 16 in Austriebsrichtung 6;
• Fig. 5 Seitenansicht der Aufführungsform von Figur 1a mit eingeklapptem Stützelement 4 mit entleertem auswechselbarem Gebinde 28;
• Fig. 6 Seitenansichten der Aufführungsform von Figur 1a während des Vorgangs der Entnahme des entleerten auswechselbaren Gebindes 28;
• Fig. 7 Seitenansicht der Aufführungsform von Figur 1a nach Öffnen der Befestigung 19 und Rückbewegung der Führungsstange 16 sowie Hochklappen des Stützelements 4 mit Trichter 8 und teilweise entleertem auswechselbarem Gebinde 29;
• Fig. 8 perspektivische Ansicht der Aufführungsform von Figur 1b;
• Fig. 9 Seitenansichten der Aufführungsform von Figur 1b vor, während und nach der Entnahme des entleerten auswechselbaren Gebinde 28.

Show it:

• Fig. 1 various embodiments of a dispensing tool;
• Fig. 2 Side views of the performance form of FIG. 1a with folded support element 4;
• Fig. 3 Side view of the performance form of FIG. 1a with folded support member 4 before moving the guide rod 16 in Austriebsrichtung 6;
• Fig. 4 Side views of the process of positive connection of the funnel 8 with the retracted support member 4 by moving the guide rod 16 in Austriebsrichtung 6;
• Fig. 5 Side view of the performance form of FIG. 1a with folded support element 4 with emptied interchangeable container 28;
• Fig. 6 Side views of the performance form of FIG. 1a during the process of removal of the emptied interchangeable container 28;
• Fig. 7 Side view of the performance form of FIG. 1a after opening the attachment 19 and return movement of the guide rod 16 and folding up the support member 4 with funnel 8 and partially emptied interchangeable container 29;
• Fig. 8 Perspective view of the performance form of FIG. 1b ;
• Fig. 9 Side views of the performance form of FIG. 1b before, during and after removal of the emptied interchangeable container 28.

Only the elements essential for the immediate understanding of the invention are shown.

Ways to carry out the invention

In FIG. 1 Various embodiments of a dispensing tool 1 are shown. The dispensing tool 1 has an exchangeable container 2 containing a pasty substance 3 and a support element 4, to which the interchangeable container 2 is arranged. Furthermore, the dispensing tool has a guide holder 5, which is arranged axially to the expulsion direction 6 of the pasty substance 3 from the exchangeable container 2. The guide holder 5 comprises the support member 4 at least partially. In addition, the dispensing tool has a sprouting device 7 for the pasty substance 3. In the dispensing tool, a part or the entire guide holder 5 and / or the support element 4 can be moved out of the axis of the expulsion direction 6, in particular by folding away parallel or at any angle to the expulsion direction 6.

FIG. 1a shows an embodiment in which the support member 4 by folding the front end 22 of the support member from the axis of the ejection direction 6 is movable.
FIG. 1b shows an embodiment in which the support member 4 by lateral folding away in parallel from the axis of Austnebsrichtung 6 are movable.
Figure 1c shows an embodiment in which a part of the guide holder 5 is movable by folding down from the axis of the ejection direction 6.

In FIGS. 2a and 2b are side views of the embodiment of FIG. 1a shown. Shown is inter alia an exchangeable container 2 containing a pasty substance 3. The pasty substance 3 may be any type of pasty and / or viscous material. Typically it is too processing material, in particular an adhesive composition and / or sealant composition, preferably an adhesive composition.
The exchangeable container 2 in FIGS. 2a and 2b is formed as a bag, the interchangeable container 2 may, however, be selected from the group consisting of cylindrical container with displaceable piston, bag, bag with positive connection and bag surrounded with a container with a hard outer shell. Preferably, the interchangeable container 2 is a bag.
The use of bags has the advantage that bags are inexpensive and cause less waste. A cylindrical container with displaceable piston offers the advantage that no support of the container is necessary.

In particular, the support element 4 has the task of supporting and fixing the interchangeable containers 2 in order to ensure reliable expelling of the pasty substance 3 from the replaceable container 2 by the expulsion device 7. The support member 4 may for example be a movable lid, such as in FIG. 1b shown. Preferably, however, the support element 4 is a support tube, wherein the interchangeable container 2 is arranged, as for example in the FIGS. 1a and 1c is shown.

Shown is in FIG. 2b Further, that it is at the support member 4 is a support tube. The support member is connected to the guide bracket 5. This is done inter alia by the fact that the dispensing tool has at least one fixing 9, which can prevent the movement of the support element from the axis of the expulsion direction 6.
Such a fixation 9 are in FIG. 2 Among other things, the line guides 11 and the connector 24. A line guides 11 comprises a guide rail 12 which is located on the guide holder 5 and is arranged axially to the expulsion direction 6, and a slider 13, which is located on the support element 4.

The guide rail 12 allows the slider 13 to move along the ejection direction 6. Movement along the ejection direction 6 is understood to mean both the movement in the ejection direction 6 and counter to the expulsion direction 6. The guide rail 121 further has a region 14 which allows the slider 131 in addition to movement along the Austriebsrichtung a movement in at least any angle to the Austriebsrichtung 6, in this case due to a folding up of the front part of the support member. A rotation of the slider 13 about its own axis is not understood in this context as movement in any angle to Austriebsrichtung 6.

The dispensing tool 1 in FIG. 2a has a Austriebsvorrichtung 7, which comprises a connectable to a piston 15 guide rod 16, wherein the guide rod 16 is axially slidably mounted along the Austriebsrichtung 6. The guide rod 16 is inserted into the support member 4 such that the piston 15 acts on the interchangeable container 2 and can displace it from the support member 4 Advantageously, the guide rod 16 is a rack. The expulsion device 7 can be operated manually, electrically, pneumatically or hydraulically, in particular electrically.
The expulsion device 7 preferably comprises an electric motor 71 which is supplied with power from an accumulator 72. However, the guide rod 16 can also be driven by means of a manually operated device.

In FIGS. 2a and 2b If the support member 4 is folded away from the axis of the expulsion direction 6, the piston 15 is arranged in the support element 4, since the piston and the support tube are formed so that a movement of the support member 4 from the axis of the expulsion direction 6 is possible, if the Piston 15 is located in the rear end 23 of the support tube, as in FIG. 2a seen.

Next, the dispensing tool 1 in FIGS. 2a and 2b a funnel 8. The support tube 4 and the funnel 8 can be connected by translation of the support element 4 and / or the funnel 8 along the expulsion direction 6, in particular form-fitting, preferably by a connector 24. Through the funnel 8, the pasty substance 3, which from the interchangeable container. 2 exit, delivered.
The hopper 8 is detachably connected to the guide bracket 5 through a mount 19. As in FIG. 2a A releasable funnel 8 is advantageous in that when changing the type of pasty substance 3 and the funnel can be replaced if a contamination of the first avoided with the subsequent pasty substance shall be. Another advantage is the possibility, by releasing the snap closure 27, the hopper 8 in conjunction with the support member 4 to move from the axis of the expulsion direction 6, as in FIG. 7 is shown. By removing the funnel 8 from the support element, the interchangeable container 2 can be removed from the support element 4, since the pasty substance 3 will often impart sufficient adhesion between the funnel and the interchangeable container. Thus, the user of the Dispensierwerkzeug 1 when changing the interchangeable container 2 by grasping the funnel 8 is not in contact with the pasty substance 3. Next, this type of container change is particularly suitable in the case of only partially emptied interchangeable containers 29, which thus easily from the Support element can be pulled out. A removal analogous to FIGS. 6a and 6b would not be possible due to the size of the only partially emptied interchangeable container 29.

Next is in FIG. 2a it can be seen that the dispensing tool 1 has a guide rod 16 with a cam 17 and a safety device 18. The support member 4 is displaceable by means of cam 17 by the guide rod 16 axially in the expulsion direction 6. FIG. 3 shows the position of the support member 4 after swinging down from the in FIGS. 2a and 2b shown position, typically after loading of the support member 4 with a replaceable Container 2. The slider 131 of the guide rail 121 is located in the region 14, the support member is therefore in the position shown both a movement along the axis of the Austriebsrichtung 6 and a folding at any angle, limited by the area 14, to Austriebsrichtung. 6 possible. The cam 17 of the guide rod 16 ensures in a displacement of the guide rod axially in the Austriebsrichtung 6 that the support member follows the mentioned shift, since the support member is moved over the tilting member 21 of the fuse 18 through the cam 17. As a result, a movement of the support element at any angle to Austriebsrichtung is no longer possible because on the one hand the slider 131 of the guide rail 121 is moved from the region 14 and on the other hand, the mating portion of the support member 25 at the front end of the support member 22 positively by a connector 24 with the Plug-in area 26 of the funnel 8 is connected. This is in FIGS. 4a, 4b and 4c seen. The fixed positioning of the support member 4 axially to the expulsion direction is important for the trouble-free expulsion of the pasty substance. 2
Next is in FIGS. 4a and 4b it can be seen that the mentioned displaceability of the support element 4 can be canceled by the fuse 18. The ramp 20, which leads to a rotational movement of the tilting element 21, serves as soon as the tilting element 21 is pushed over the ramp 20 along the direction of expulsion during the displacement of the support element. The rotational movement of the tilting element 21 releases the contact of the cam 17 with the tilting element 21 of the safety device 18. As a result, the guide rod 16 can move the interchangeable container 2 in the direction of the funnel via the piston 15 and thus drive out the pasty substance 3. This procedure has the advantage that first the correct positioning of the support element and a positive connection between the support element and the funnel are ensured before the pasty substance is expelled.
FIG. 5 shows the position of the piston 15 with emptied interchangeable container. If the interchangeable container is a bag, then the emptied interchangeable container 28 is typically due to its small volume to a large extent in the hopper 8 place. When retracting the guide rod 16 against the Expulsion direction 6 remains the emptied replaceable container 28 due to the adhesion of the pasty substance 3 in conjunction with the hopper 8. This allows the guide rod 16 against the Austriebsrichtung 6 are withdrawn and the support member are folded up, as shown in FIGS. 6a and 6b is shown. The support element is thus free of emptied interchangeable container 28 and can be reloaded immediately, while the emptied interchangeable container 28 can be easily removed from the hopper.
If, on the other hand, an only partially emptied interchangeable container 29 has to be removed from the support element 4, folding up of the support element after retraction of the guide rod 16 against the expulsion direction 6 is not possible due to the large volume of the partially emptied interchangeable container 29. Therefore, as previously described and in FIG. 7 shown, the retraction of the guide rod 16, the attachment 19 of the funnel 8 are opened. This allows retraction of the support member in conjunction with the hopper 8, wherein the support member can then be folded up and the partially emptied interchangeable container 29 can be removed in connection with the hopper 8 from the support element.

In Fig. 8 is the side view of the embodiment FIG. 1b shown. Unlike the embodiment of FIG. 1b it is in the support member 4 is a support tube. This is to the advantage that a better support and fixation of the interchangeable container is ensured by a support tube. The advantage of in FIG. 1b In the embodiment shown, where the support element is a movable cover, it is in particular that such a design is simpler and less expensive and the interchangeable container can be exchanged more quickly.

The support member 4 in is connected to a movable part 10 of the guide holder 5, which is parallel from the axis of the Expulsion direction 6 can be folded away. This allows the support element in the folded-away state, as in FIG. 8 and FIG. 9c shown, easily fill with a removable container 2. In the closed state, the movable part 10 of the guide holder 5 by locking the fixations 91 axially to the expulsion direction 6 can be positively connected to the rest of the guide holder 5. The fixing 91 consists of locking lugs 30 on the movable part 10, which engage in the latching groove 31 when latching.

Further, the support member 4 is connected to the movable part 10 of the guide holder 5 in a manner which allows the displacement of the support member 4 axially along the expulsion direction 6.
As in FIGS. 9a and 9b 1, the dispersion tool has a line guide 111, which consists of a guide rail 122 on the movable part 10 of the guide holder 5 and a slider 132 on the support element 4. By positive contact of the piston 15 with the inner wall of the support member 4 can be moved by moving the guide rod 16 along the Austriebsrichtung 6, the support member 4 via the slider 132 along the guide rail 122. By displacing the guide rod in the direction of the expulsion direction 6, the plug-in region 25 at the front end of the support element 22 is positively connected by a plug connection 24 with the plug-in region 26 of the funnel 8 by translation along the expulsion direction. This is in FIG. 9a can be seen and leads inter alia to a fixed positioning of the support member 4 to Austriebsrichtung 6 in addition to locking the fixation 91st
By moving the guide rod 16 against the expulsion direction 6, the aforementioned connector 24 is released, as in FIG. 9b is shown.

FIG. 9a shows the position of the piston 15 with emptied interchangeable container 28. As previously mentioned, finds the emptied interchangeable container 28 due to its small volume typically to a large extent in the hopper 8 place when it is the interchangeable container 2 is a bag. When retracting the guide rod 16 against the expulsion direction 6, the emptied interchangeable container 28 remains in connection with the hopper 8, as shown in FIG FIG. 9b is shown. Thereby, the guide rod 16 can be withdrawn against the Austriebsrichtung 6 and the movable part of the guide bracket 10 are folded away with the support member 4, as FIG. 9c shows. The support element is thus free of emptied interchangeable container 28 and can be reloaded immediately, while the emptied interchangeable container 28 can be easily removed from the hopper.

Of course, the invention is not limited to the embodiments shown and described. Further, various materials can be used for the production of the device parts. Furthermore, the device can be manufactured in different dimensions, according to the needs of the user. Some of the parts used can be changed while retaining their function, or, if the function is not required, omitted.

LIST OF REFERENCE NUMBERS

1

Dispensierwerkzeug

2

interchangeable container

3

pasty substance

4

support element

5

guide support

6

out direction

7

expulsion device

71

electric motor

72

accumulator

8th

funnel

9

fixation

91

Fixation for locking

10

movable part of the guide bracket

11

lines

12

guide rail

121

Guide rail with area 14

122

Guide rail to movable part of the guide holder 10

13

skid

131

skid

132

skid

14

Area

15

piston

16

guide rod

17

cam

18

fuse

19

attachment

20

ramp

21

tilt element

22

front end support element

23

rear end support element

24

connector

25

Plug-in area support element

26

Plug-in area funnel

27

snap lock

28

emptied interchangeable container

29

partially emptied interchangeable container

30

locking lug

31

stop groove

Claims (15)

Dispensing tool comprising: an exchangeable container (2) containing a pasty substance (3), a support element (4), on which the interchangeable container (2) is arranged, a guide holder (5) arranged axially to the expulsion direction (6) of the pasty substance (3) from the replaceable container (2), wherein the guide holder (5) Support element (4) comprises at least partially, and a Austriebsvorrichtung (7) for the pasty substance (3), characterized in that a part or the entire guide holder (5) and / or the support element (4) from the axis of the expulsion direction (6) is movable, in particular by folding away in parallel or at any angle to Austriebsrichtung (6). Dispensierwerkzeug according to claim 1, characterized in that the support element (4) with the guide holder (5) is connected. Dispensing tool according to claim 1 or 2, characterized in that the dispensing tool has a funnel (8) and that the support element (4) and the funnel (8) by translation of the support element (4) and / or the funnel (8) along the Austriebsrichtung (6) are connectable, in particular form-fitting, preferably by plug connection. Dispensierwerkzeug according to claim 3, characterized in that the funnel (8) releasably connected to the guide holder (5), in particular by a fastening (19), preferably by a snap closure, is connectable. Dispensierwerkzeug according to any one of the preceding claims, characterized in that the interchangeable container (2) is selected from the group consisting of cylindrical container with sliding piston, bag, molded-in bag and bag surrounded by a hard-shelled container. Dispensierwerkzeug according to any one of the preceding claims, characterized in that the Austriebsvorrichtung (7) manually, electrically, pneumatically or hydraulically, in particular electrically, is operable. Dispensing tool according to one of the preceding claims, characterized in that the pasty substance (3) is an adhesive composition and / or sealant composition. Dispensing tool according to one of the preceding claims, characterized in that the dispensing tool has at least one fixing (9) which prevent the movement of the part or the entire guide holder (5) and / or the support element (4) from the axis of the expulsion direction (6) can. Dispensierwerkzeug according to claim 8, characterized in that the at least one fixing (9) comprises a line guide (11), comprising a guide rail (12) and a slider (13). Dispensing tool according to Claim 9, characterized in that the guide rail (12) is arranged axially relative to the expulsion direction (6) and the guide rail (12) has a region (14) which extends the slider (13) in addition to the movement along the expulsion direction (6). a movement in at least one arbitrary angle to Austriebsrichtung (6) allowed. Dispensierwerkzeug according to claim 9 or 10, characterized in that the guide rail (12) on the guide holder (5) and the slider (13) on the support element (4) are arranged. Dispensierwerkzeug according to claim 10 or 11, characterized in that the Austriebsvorrichtung (7) with a piston (15) connectable guide rod (16), wherein the guide rod (16) axially along the Austriebsrichtung (6) slidably mounted and so in the support element (4) is insertable, that the piston (15) on the interchangeable container (2) acts and this can displace from the support element (4). Dispensierwerkzeug according to claim 12, characterized in that the piston (15) in the support element (4) is arranged when the support element (4) from the axis of the Austriebsrichtung (6) is moved, in particular by folding away at any angle to Austriebsrichtung (6 ). Dispensing tool according to one of the preceding claims, characterized in that the dispensing tool has a guide rod (16) with a cam (17) and a fuse (18), wherein by means of cam (17) the support element (4) through the guide rod (16) axially in the Austriebsrichtung (6) is displaceable and by the fuse (18), the aforementioned displaceability can be canceled. Dispensierwerkzeug according to claim 8, characterized in that the support element (4) is connected to a movable part (10) of the guide holder (5), wherein said movable part (10) of the guide holder (5) parallel to the axis of the Austriebsrichtung (6 ) is folded away and said movable part (10) of the guide holder (5) in the closed state by at least one fixation (9) non-positively, in particular by latching, preferably axially to Austriebsrichtung (6), with the rest of the guide holder (5) is connected.

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