EP3171986A1

EP3171986A1 - Applicator pen

Info

Publication number: EP3171986A1
Application number: EP15738653.3A
Authority: EP
Inventors: Daniel Fehlmann; Dana Maiwald; Dominique Burkard
Original assignee: Sika Technology AG
Current assignee: Sika Technology AG
Priority date: 2014-07-25
Filing date: 2015-07-16
Publication date: 2017-05-31
Also published as: US20170217244A1; US10350937B2; WO2016012353A1

Abstract

The invention relates to an applicator pen for discharging a liquid onto a surface, preferably for applying a protective layer to adhesive surfaces of a vehicle, in particular for improving adhesion for gluing uses, comprising a hollow body (3) and an ampoule (15) received in the hollow body, which comprises a circumferential surface for absorbing the liquid, the ampoule (15) being breakable to discharge the liquid, and a breaking device with an axially movable section being provided and designed in such a way that movement of the movable section (11) in the axial direction causes the ampoule (15) to break.

Description

Application pen Description Technical field

The invention relates to an application pen for dispensing a liquid onto a surface, preferably for applying a protective layer to adhesive surfaces of a vehicle, in particular for improving adhesion

Adhesive applications, comprising a hollow body, in which the liquid is preferably received within an ampoule accommodated in the hollow body, which can be broken to discharge the liquid.

State of the art

Pre-treatment agents for the production of adhesive bonds are usually offered in packages consisting of an aluminum bottle, polyethylene cup and a screw cap of the polypropylene bottle. In the field of disposable applications also aluminum tubes or primer pens and activator pads are offered with low content.

Application pens of the type described above are known, for example, from WO 2014/004521 A1. WO 2014/004521 A1 describes a

An application pen comprising a cylindrical body in which a

Glass ampoule is held, an application part over which liquid can be applied to a surface and a cap. The

Ampoule is destroyed by a pressure exerted radially on the peripheral surface of the application part, so that the liquid exits from the ampoule. To apply the liquid, the application part comprises a porous body. A seal between the individual parts (cylindrical body,

In the case of the application pen in accordance with WO 2014/004521 A1, there is the risk of the liquid drying out, so that this application pen is difficult to apply can be used multiple times (over a longer period of time). In addition, the way in which the ampoule is broken is perceived as being comparatively complicated and less "intuitive." The invention is therefore based on the object of improving

To provide application pen of the generic type, which can be used in particular multiple times over a longer period or is easy to use. Disclosure of the invention

This object is achieved in particular by an application pen with the

Characteristics of claim 1 solved. In particular, the object is achieved by an application pen for

Applying a liquid to a surface, preferably for applying a protective layer on adhesive surfaces of a vehicle, in particular for adhesion improvement in adhesive applications, comprising a hollow body for receiving the liquid, in particular within an ampoule accommodated in the hollow body (comprising a peripheral surface), wherein the ampoule for discharging the Liquid can be broken.

According to a first independent aspect, a breaker having an axially movable portion is provided and formed such that movement of the movable portion in the axial direction of the

Breaking the ampoule leads. This creates an intuitively easily detectable and simple and effective way of breaking the ampoule. In the prior art breakers are proposed, the radial application of force (for example, by buckling on a

Table edge or impressions of a peripheral surface) require what is perceived as relatively complicated and complicated. According to the invention, however, can be an axial force (for example, by a blow to one end of the application pen or a rotary drive via a thread, as explained in detail below) comparatively easy breakage of the ampoule can be achieved. An "axial" movement or force is to be understood as meaning a movement or force action in the direction of the longitudinal axis of the application pen.

According to a second, independent aspect (which may preferably be combined with the first aspect), the hollow body has at least two parts, preferably at least three parts, wherein on at least one surface, in particular peripheral surface, of one of the parts of a surface, in particular Peripheral surface, another part faces, a

Sealing ring, in particular a sealing lip is provided. The sealing ring, in particular the sealing lip is preferably integrally formed on one of the facing surfaces. A "sealing ring" is intended to represent a structure which is self-contained A "sealing lip" is preferably a "sealing ring" which is designed as a ring lamina.A core idea of the second aspect is to provide at least one sealing ring, which seals the seal individual components of the application pen, in particular if the individual parts are movable (such as, for example, a closure cap

in relation to a head part or a head part in relation to a base part, for example for breaking the ampoule), a high tightness is made possible at the same time as a comparatively simple relative movement.

Overall, more than one sealing ring, for example at least two, preferably at least three or four sealing rings (sealing lips) may be provided on one of the facing surfaces. For example, a plurality of sealing rings (sealing lips) may be provided on an outer circumferential surface of a head part, wherein a first group of sealing rings faces an inner surface of a closure cap and a second group of sealing rings an inner peripheral surface of a base part.

According to a third, independent aspect of the invention (which may preferably be combined with the first and / or second aspect), the hollow body comprises at least one closure cap and a base body which preferably comprises an end of the application pen facing away from the cap, wherein the closure cap comprises a liquid application part (in particular liquid application felt), wherein the

Cap together with the liquid application part of the

Base body can be removed, wherein the liquid application part can be applied in the remote state of the cap to the surface to which liquid is to be applied, for applying the liquid. A central idea of the third aspect is that a

Liquid application part is disposed within the cap and thus the cap simultaneously serves as means for applying the liquid. In the prior art, for example WO 2014/004521 A1, the liquid application part remains in the main body of the pen. As a result, when the liquid application part dries, either the entire application pen has to be disposed of or (if this is even possible at all) the liquid application part as such

Application pen must be removed, what with a corresponding

Danger of contamination of the user is connected. In contrast, the invention allows gem. the third aspect, that the cap incl.

Liquid application part is exchanged in its entirety. Since the cap is only a relatively small or easily manufacturable component, this is a low cost and a low impact on the environment

connected. This generally results in that the application pen can be used several times over a longer period of time. According to a fourth independent aspect of the invention (which may preferably be combined with the first and / or second and / or third aspect), the hollow body has at least one base body and a head part, wherein the head part comprises a (flexible) end face with a slot , The slot may have a width of at most 1 mm, preferably 0.5 mm, more preferably at most 0.2 mm. Furthermore, the slot may have a length of at least 1.5 mm, preferably at least 2 mm or at most 10 mm, preferably at most 5 mm. One

The core idea of the fourth aspect is to be able to place an order after the "baby bottle pnzip".

be provided transparent closure cap. The head part can be made of a (soft) plastic, for example polyolefin (for example polyethylene and / or polypropylene) or of silicone. The head part is preferably designed so that it can be pressed in its front region, so that thereby dosing and application of the liquid can take place.

Preferably, the head part has no felt, is designed as "feltless".

This allows the ampoule to be broken in a safe manner. In particular, it was recognized that fragments of the ampoule in such an approach not (or at least with less

Probability) can get out of the application pen.

In a preferred embodiment, the movable portion is arranged and formed such that it by a in the axial direction

can be moved stroke on one end of the application pen in the axial direction, so that the ampoule breaks. The "impact" may, for example, be directed to one end of the application pen, which is opposite to the exit region, but the "impact" preferably takes place at an end on which the exit region is arranged, for example on a closure cap or a head part. By "impact" is meant in particular a preferably short-term, for example less than 0.1 s, pressurization In an alternative development, the movable section can be driven by rotation of a rotatable section, in particular a closure cap, such that rotation of the rotatable section The rotatable portion may be formed by the movable portion itself (at least partially), for example, by a thread (screw thread) movable portion (or a rotatable portion of the application pin, with the movable portion in Operative connection) rotates, it simultaneously drives the movable section in the axial direction until the ampoule breaks. It is particularly preferred in the context, if over the same thread and a cap can be removed from the other components of the application pen. For example, the movable portion (eg a head part) may be connected to the closure cap (be in operative connection). About a rotation of the cap, the movable portion can then be moved in the axial direction of the ampoule so that it breaks. After the ampoule has been broken, the closure cap can then be rotated in opposite directions, so that the closure cap can be removed from the remaining components of the application pen. Overall, a simple and feasible without great effort possibility for breaking the ampoule is shown by such measures. Also in this development, it is advantageous if an end which comprises the exit region and / or a section which comprises the head part is rotated so that it moves in the direction of a base part; the ultimately breaking force of the end of the application pen with the

Exit area acts forth. This increases the safety when breaking the ampoule.

Preferably, the breaking device comprises a deflecting device such that a force which acts axially on account of the movement of the movable section is deflected in the direction of the circumferential surface of the ampoule (cf.

Breaking the ampoule). In such an embodiment, therefore, on the one hand, a breakage of the ampoule via an axial movement

(For example, a blow from the front or rear) and this combined in a synergistic way that by means of the deflecting force acting on the circumferential surface of the ampoule due to the axial movement force is directed, so that the ampoule can be destroyed with relatively little effort. In a specific embodiment, the breaking device has at least one (preferably flexible) claw, preferably such that

at least one claw is driven by the axial movement of the movable portion against the peripheral surface of the ampoule. By such a claw breaking the ampule with comparatively low

Effort be enabled, which improves the operability of the application pen.

The at least one claw may have a run-on slope, so that the claw (for example, when starting against a corresponding

Run-up slope or a stop) is driven against the ampoule and this breaks.

If several claws are provided, these are preferably spaced apart by slots. These slots preferably have (on average) a smaller diameter in a direction perpendicular to the axial direction than the claws (on average). For example, the claws (on average) may be at least 1.5 times, preferably at least 2 times as wide (in the direction perpendicular to the axial direction) as the slots (on average). As a result, the ampoule can be safely guided both by the claws and at least held in phases as well as controlled broken.

A (distal) end or end of the claw, which in the process of

Breaking comes into contact with the ampoule, may be curved inwardly or have a radially inwardly facing projection. As a result, the claw "hammers" on the ampoule so that it is controlled and effectively broken. "Claw" generally means a structure that is at least partially curved (inwards).

In a concrete embodiment, two claws are each other

arranged opposite. Alternatively or additionally, two

Guide sections may be arranged next to the claws in the circumferential direction. These guide portions may have axially extending ribs that can guide and hold the ampule for controlled and safe fracturing. These guide sections are also opposite each other. Overall, therefore, in the circumferential direction, a first guide portion, a first claw, a second guide portion and a second claw in this

Order can be arranged. Slots may be located between these four elements, for example, having a diameter that is smaller than a diameter of the claws and / or the guide portions (in the circumferential direction).

On an outer peripheral surface of the at least one claw (and / or the guide portion) may be provided ring portions which may have an at least partially sealing function. The claw is preferably (in particular integral) part of a head part. A free end of the claw preferably points in the direction of a rear end of the application pin (for example in the direction of a base part). This allows the ampoule to be broken safely and effectively. Preferably, the hollow body comprises a head part and a base body, which comprises an end facing away from the outlet region. The head part is preferably movable relative to the base body in the axial direction. The head part may in this embodiment define the movable portion or at least form part of the movable portion. Furthermore, the head part can form at least one component of the breaker.

In a specific embodiment, the head part is at least partially guided within the base body. In a preferred embodiment, the head part may have the claws described above. The head part (as well as the base body) may be at least partially cylindrical. In particular, when a relative movement between the head part and the base body is used to the ampoule (eg in the presence of an axial Punch), the operability of the application pen is improved.

In one embodiment, a head part (especially the one above

described head part) at least one (porous)

Have liquid absorption body, in particular at least one absorption sponge and / or a liquid application felt for applying the liquid. In this embodiment, for example, a

Cap removed from the unit of base body and head portion, so that a liquid application felt (in particular the liquid application felt) is accessible to the outside for applying the liquid. Of the

Absorption sponge can ensure that during transport

Vibrations are intercepted and thereby the ampoule is protected. Furthermore, he can ensure that when breaking the ampoule no glass splinters emerge in the front area. Overall, this is the

Ease of use and prevent injuries.

Preferably, the hollow body (in particular a base body of the

Hollow body), at least one run-up slope on an inner

Circumferential surface in such a way that an axially acting force, at least partially, in a radially inwardly directed (on the outer peripheral surface of the

Ampoule-directed) force is converted. The run-on slope preferably cooperates with the claws described above. These claws can in turn have a corresponding run-on slope. Overall, a preferred embodiment is configured such that a run-up slope of a claw with a run-on slope of the base body cooperates so that an axial displacement of the claw in the direction of a rear end of the application pin forces the claw radially inward so that it presses against the ampoule and this breaks. Overall, a structurally simple solution is shown in order to break the ampoule in a safe manner. In a specific embodiment, a (removable) film element, in particular label, can be arranged around the application pen. The film element may preferably be arranged around a head part and / or between a closure cap and a base body. The film element may be formed so that it blocks an axial movement between the head part and the base body, so that - as long as that

Foil element is attached - the ampule can not be broken. In a specific application, the film element is then removed, whereby the blockage is lifted by the film element and the ampoule can be broken. If, for example, the film element (label) is labeled accordingly, an intuitive and simple operation of the application pen can be achieved.

In general, the hollow body may have different parts,

in particular a base body, preferably comprising a

Exit region facing away from the application pin and / or a (for example, adjacent to the base body) head portion and / or a cap. Within the hollow body, as components of the application pen, a liquid application part (in particular liquid application felt) and / or a sponge (absorption sponge) can be arranged, which prevents glass splinters from passing out of the ampoule. The liquid application part, in particular the liquid application felt, can project at least partially from the closure cap, in particular by at least 2 mm or at least 4 mm. That's it

Liquid application part, in particular the liquid application felt easily accessible from the outside, so that liquid can be applied to a surface. The liquid application part may be (optionally fixed and / or integral) connected to the cap, in particular inserted and / or pressed and / or glued and / or welded. An end of the closure cap facing away from the liquid application part may have a recess. This recess has, for example, a diameter of at least 0.5 cm and / or at most 1 cm and may, for example, have a round cross-section. By such a recess, the cap can be particularly easily grasped, so that the cap can be removed in a simple manner and in particular can act in a simple manner as means for applying the liquid (with integrated liquid application part). This improves operability. The closure cap can have axially extending ribs on its outer

Have peripheral surface. Also, the operability of the cap, especially when it acts as a liquid applicator (with integrated liquid application part), will be improved. According to an independent aspect of the invention is a closure cap for an application pen, in particular of the type described above

proposed, wherein the closure cap a, in particular porous

Liquid application part, preferably a liquid-applied felt.

At least one sealing ring (sealing lip) can have at least one interruption, in particular notch, wherein the interruption (notch)

preferably shorter than 3 mm, in particular shorter than 1, 5 mm. The notch may be longer than 0.3 mm, in particular longer than 0.7 mm.

Preferably (in particular in this development) several (in

Axial direction one behind the other) provided sealing rings. At least one first sealing ring can be provided without interruption. At least one second sealing ring may have at least one interruption (notch). According to a more general idea, there can be any sealing element having a discontinuity (recess or channel) such that air moves toward each other from a part (head part) comprising an applicator part (eg felt) and a base part in which one part

Liquid (primer) is, through this interruption (recess or channel) can escape (or at least partially escape). As far as here and in the following of a "sealing ring" is mentioned, this can be replaced by a general "sealing element". All developments of the sealing ring (which does not directly affect the ring geometry) then apply to such a "sealing element".

In a specific embodiment, exactly one first sealing ring is provided and (exactly) two second sealing rings. The at least one first sealing ring may be arranged distally relative to the at least one second sealing ring. A "distal" arrangement is to be understood as meaning an arrangement in which the corresponding sealing ring is arranged closer to a head end or farther away from a rear end of the application pen, the interruptions (notches) being (approximately) U-shaped or V-shaped. be shaped.

Insofar as the length of the interruption (notch) is specified, it should be understood in particular the length of the interruption (notch) in the circumferential direction (ie along an imaginary line that would follow the sealing ring, if he had no interruption).

At least one sealing ring can have at least two or at least three

Have interruptions (notches). Insofar as more than one sealing ring is provided with at least one interruption, the interruptions of the plurality of sealing rings can be aligned (in the axial direction). This allows air to escape particularly effectively. The respective sealing ring may have a height (in the radial direction) of at least 0.4 mm, in particular at least 0.6 mm and / or at most 2.0 mm, in particular at most 1.2 mm.

Insofar as it is not specified in detail above and in the following, can each sealing ring basically be continuous (circulate) or have one or more interruptions (notches).

Overall, can be reduced by the above-described interruptions (notches) within the sealing rings, an overpressure, which occurs when mutually displaceable (movable) parts of the application pin are changed in their relative position to each other. In such a

Displacement (movement) can namely create an overpressure, which is relieved by the interruptions (notches). For example, if a (the) head part is pressed into the interior of the application pen (or against an ampoule or in the direction of the rear end of the application pen) may occur in the interior of the application pen overpressure, so that (in the appropriate position of the application pen) drips content , The provision of interruptions (escaping openings), in particular on "inner" (proximal) sealing rings prevents or at least reduces this problem, since the (pressurized) air at least for the most part

can escape. Insofar as a (slight) excess pressure remains, this may even be advantageous because it promotes the filling of an application part (felt). Without such (low) overpressure, the filling of the application part (felt) (possibly much longer), take.

In a specific embodiment, at least one sealing ring (sealing lip) exactly two interruptions (notches), so that air when one another Zubewegen of individual components (for example, when successive Zubewegen headboard and base member), in particular during

Screwing together two components (in particular of the head part and the base part), air (as long as) can escape until a possibly present additional additional sealing lip (without interruptions or

Notches) realized a seal (for example, if this additional sealing lip is provided on the head part, when this provided there sealing lip comes into contact with the base part). Overall, a (defined) overpressure, which ensures that when opening (breaking) of the ampoule and optionally removing a closure, the content (primer) quickly fills a part of the job (felt).

Description of the drawings

Advantages and expediency of the invention will become apparent from the following description of preferred embodiments with reference to the figures. From this show:

Fig. 1 is a schematic sectional view of a first

embodiment;

Fig. 2 is an enlarged section of the embodiment

of Figure 1 in a sectional view.

Fig. 3 the detail gem. Fig. 2 in an altered position;

Fig. 4 is a schematic sectional view of a cap according to the embodiment. Fig. 1;

Fig. 5 is a schematic view of a second

Embodiment of the invention;

Fig. 6, the embodiment acc. Fig. 5 in a schematic

Cut and a changed position without cap;

Fig. 7, the cap gem. the embodiments of Figures 5 and 6 in a schematic section.

8 shows a third embodiment of the invention in a sectional view;

Fig. 9 is a schematic sectional view of a cap gem.

the embodiment of Fig. 8;

10 is a schematic section of a detail of a

fourth embodiment of the invention;

Fig. 1 1, the section of the embodiment according to. Fig. 10 without

Cap;

Fig. 12 shows a fifth embodiment of the invention in one

schematic section;

Fig. 13, the embodiment acc. Fig. 12 without cap;

Fig. 14 shows a detail of a sixth embodiment of

Invention in a schematic section analogous to FIG. 2; FIG. 15 shows a section of the embodiment according to FIG. 14 in a schematic section analogous to FIG. 3; FIG.

Fig. 16 shows an alternative embodiment of a head part in one

Tilt;

17 shows a front view of the head part according to FIG. 16;

Fig. 18 is a section along line XVIII-XVIII in Fig. 17;

Fig. 19 is a section along line XVI 11 l-XVI 111;

Fig. 20 is a sectional view of an alternative embodiment of the

Application pen with a head portion of Figure 17 in a first position.

FIG. 21 shows a section analogous to FIG. 20 in a second position; FIG. and

FIG. 22 shows the application pen according to FIGS. 20 and 21 in one

Oblique view (partially in an exploded view).

1 shows a schematic section of a first embodiment of an application pen. The application pen comprises a base body 10, an (axially movable) head part 1 1 (which forms a movable portion) and a closure cap 12, base body 10, head part 1 1 and

Closure cap 12 define a hollow body 3. The base body 10 has an end region 14 (rear end) of the application pen facing away from an exit region 13. In the hollow body 13, specifically within the

Base body 10 and (partially) within the head part 1 1, an ampoule (shown in phantom) 15 is arranged. Furthermore, a sponge 16 is provided, which prevents the ampoule (or fragments thereof) from falling out of the application pen. The sponge 16 is provided within the head part 1 1. A liquid application felt 17 is gem. Fig. 1 partially disposed within the head part 1 1 and the cap 12. Claws 18 (in the present example, four claws are provided, but this number is not mandatory), the ampoule 15 can be broken so that liquid emerges from the ampoule.

The breakage of the ampoule is illustrated in particular in FIGS. 2 and 3. FIGS. 2 and 3 show an enlarged section of the embodiment according to FIG. Fig. 1 in a first position (Fig. 2) and a second position (Fig. 3). In Fig. 2 it can be seen that a stop 19 of the head part 1 1 is removed from a stop 20 of the base body 10, so that the head part 1 1 and base body 10 can be moved towards each other, which is symbolized by the arrows 21. Will now in the direction of the arrows 21 a blow to an end 22 of the

Application body, which is associated with the outlet region 13 and is formed in the present case by the closure cap 12, exercised, moves the head part 1 1 incl. Cap 12 in the direction of the base body 10. The final state is shown in Fig. 3. During this movement, run-on slopes 23 of the claws 18 come into contact with a (annular

circumferential) run-on slope 24 of an inner circumferential surface of the base body, so that the (flexible) claws are bent inwards (in the radial direction), so that a pressure is exerted on the ampule and breaks it (see Fig. 3). The impact necessary for breaking the ampoule can be effected, for example, by gripping the base body 10 and pushing the cap 12 face-on against a wall (beaten). To facilitate that the claws 18 can bend radially inwardly, they are spaced apart by slots 25.

A seal between the base body 10 and the head part 1 1 (see Fig. 3) via sealing rings 26 which on an outer peripheral surface of the head part 1 1, which is opposite to an inner peripheral surface of the base body 10, are provided. By this sealing rings 26, a high density is achieved without the mobility between the head part 1 1 and base body 10, which is necessary for the breaking of the ampoule, excessively limited would. The cap 12 can be screwed onto the head part 1 1 via a screw thread 27 (the associated thread of the head part can not be seen in the figure since it is interrupted and the interruptions lie in the cutting plane). A sealing of the closure cap 12 relative to the head part 10 is effected by a cone section 28 on the closure cap 12 and a cone section 29 on the head part 11. Furthermore, the head part 1 1 has a ring inclined surface 30, which corresponds to the cone section 28 of the closure cap 12. Similarly, the cap 12 comprises a ring inclined surface 31, which corresponds to the cone portion 29 of the head part 1 1. Overall, a reliable sealing of the head part 1 1 relative to the cap 12 is thereby realized.

4, the cap 12 without head part 1 1 and base body 10 is shown. As can be seen in Figure 4, the liquid application felt 17 is disposed in a recess 32 of the cap (eg glued or welded or otherwise integrally formed; if desired, the liquid application felt 17 can also be detachable from the cap). Thus, when the cap 12 is removed from the other components of the applicator pen, the cap 12 still has its associated liquid applicator felt 17 impregnated with liquid due to its prior contact with the sponge 16. This liquid in the liquid application felt 17 can then be applied to a surface. Is the liquid application felt 17

dried out or unusable for any other reason, the cap 12 can be thrown away and replaced with a new cap 12. In this case, the remaining components of the

Application pen can be used. This increases the life of the

Application pen considerably.

Fig. 5 shows a schematic sectional view of a second embodiment of the invention (in a first position). Fig. 6 shows the embodiment of FIG. 5 without the cap. The ampoule is not shown in Fig. 5 and 6 for the sake of simplicity, but arranged analogously to FIG. The mechanism for breaking the ampoule corresponds to the mechanism according to FIGS. 1 to 4 and will not be explained again at this point. In contrast to the embodiment according to FIGS. 1 to 4, no sponge 16 is provided in the embodiment according to FIGS. 5 to 7. In the embodiment according to FIGS. 5 to 7, the liquid application felt 17 prevents glass fragments from escaping from the ampoule. For this purpose, unlike in the embodiment according to FIGS. 1 to 4, the liquid application felt 17 (see FIGS. 6 and 7) is not integrated in the cap 12 but in the head part 11. Analogously to the embodiment according to FIGS. 1 to 4, the head part 1 1 is sealed off from the base body 10 by sealing rings 26. These sealing rings 26 may be formed as sealing lips or sealing lamellae. Furthermore, also has an outer peripheral surface of the head part 1 1, which is opposite to an inner circumferential surface of the cap 12, sealing rings 33 a to 33 c. The sealing ring 33a (see Fig. 7) engages in a corresponding annular

Recess (groove) 34 on an inner circumferential surface of the cap 12 to form a locking connection a. The sealing rings 33b, 33c are as

Sealing lips (sealing blades) formed, which further improve the seal. The cap 12 according to the embodiment of FIGS. 5 to 7 is attached to the head part 1 1, wherein a connection is realized by latching. Fig. 8 shows a schematic sectional view of a third embodiment of the application pen. The third embodiment according to FIGS. 8 and 9 corresponds to the first embodiment according to FIGS. 1 to 4 (in particular with regard to the seal between head part 11 and base body 10 or head part 11 and closure cap 12 and with respect to FIG

Liquid applying felt 17 and sponge 16) with the following differences. In the embodiment according to FIGS. 8 and 9, the ampoule 15 is broken by means of an annular constriction, which constitutes a predetermined bending point. Due to the annular constriction 35 of the base body 10 may be kinked, so that the ampoule 15 breaks. As can be seen in FIG. 9, in the third embodiment, analogously to FIG

Liquid application felt 17 disposed within the cap 12. FIGS. 10 and 11 show a schematic sectional view of a

Section of a fourth embodiment of the invention. The non-illustrated parts of the fourth embodiment, particularly as far as the base body 10 and the mechanism of breakage of the ampoule, may be formed as in the first, second or third embodiment (or a combination of these embodiments). Unlike the

In the foregoing embodiments, in the embodiment of Figs. 10 and 11, no liquid application felt is provided. The falling out of splinters of the ampoule is prevented by the sponge 16, which also absorbs and absorbs liquid. In order to be able to use the application pen according to FIGS. 10 and 11, the (preferably transparent) cap 12 must first be removed (see FIG. 11). By pressing on one

Peripheral surface 36 of the head part 1 1 in the region of the sponge 16 is liquid through a slot 37 according to the "baby bottle principle"

pushed out. The seal between the head part 1 1 and base body 10 via sealing lips 26, as in the embodiment of FIG. 1 to 4. The cap 12 is sealed relative to the head part 1 1 via sealing rings 38 a, 38 b, wherein the sealing ring 38 a in a corresponding annular groove 39 engages an inner circumferential surface of the cap 12 to form a locking connection. The sealing ring 38b is formed as a protruding sealing lamella.

Figures 12 and 13 show sectional views of a fifth embodiment of the invention (Figure 12 with closure cap, Figure 13 without closure cap). The mechanism of breakage of the ampoule corresponds to the mechanism as described in the embodiment of FIGS. 8 and 9. A sponge is not provided, but a Flüssigkeitsauftragefilz 17. This remains analogous to the embodiment of FIGS. 5 and 6 in the head part 1 1, the sealing lips 26 analogous to the previous embodiments, to realize a seal between the base body 10 and the head part 1 1 ,

Furthermore, analogously to the embodiment according to FIGS. 5 to 7, sealing rings 33a to 33c are provided in order to lock the closure cap 12 and a seal between closure cap 12 and head part 11

enable. In the embodiment according to FIGS. 1 to 4 and 5 to 7, a circulating film element (not shown) may preferably be arranged as a label in a region between the stops 19 and 20 (see FIG. 2). If this label is removed, the stops 19 and 20 can be moved towards each other.

In principle, in all embodiments (possibly with structural adjustments), the respective cap 12 can be screwed onto the head part 1 1 or plugged (bounced).

The sponge 16 may for example be a melamine sponge or be made of a different plastic. In general, the

Sponge 16 are formed from a foam. The ampoule 15 may for example consist of glass. The base body and / or the head part and / or the closure cap 12 can be formed from a plastic, for example polyamide, polyethylene or polypropylene (generally polyolefin). Basically, the application pen is suitable for the application of liquids to surfaces of all kinds. A preferred application is the application of a liquid as an adhesion-promoting substrate or as

Protective layer in the area of bonding surfaces (for example in

Automotive area when inserting washers).

The liquid application felt 17 may generally be any one of

Be liquid application part. The liquid application felt may consist of fibers in random or fluid-oriented fibers. FIGS. 14 and 15 each show a section of a sixth

Embodiment of the application pen. FIG. 14 shows a section analogous to FIG. 2. FIG. 15 shows a section analogous to FIG. 3. In contrast to the embodiment according to FIGS. 2 and 3, the head part (the movable part) of FIG Section) 1 1 is not moved by an axially acting impact, but by a rotation of the cap 12. For this purpose, the cap 12 has a thread 40 (which is preferably formed as an internal thread) on. The base body 10 has a corresponding thread 41 (which is preferably formed as an external thread), so that the closure cap 12 by rotation in

Direction of the base body 10 can be moved. As a result, the head part 1 1 in the direction of the base body 10 is urged, so that the run-on slope 23 of the head part 1 1 analogous to the embodiment of FIGS. 2 and 3 against the run-on slope 24 of the base body 10 starts, so that the claws 18 are pressed inward and an ampoule (not shown in Figures 14 and 15, see, for example, Figure 1) located between the claws 18 breaks. Further, in the embodiment of Figs. 14 and 15, positioning pins 42 are still provided between the liquid application felt 17 and the ampule (not shown in Figs. 14 and 15) so that the ampule can be positioned and supported before being broken.

Incidentally, 10 sealing rings (or - lips) 43 are provided between the head part 1 1 and base body.

Fig. 16 shows a head part 1 1 according to an alternative embodiment in an oblique view. Marked by a circle are notches 44 disposed within "second" sealing rings 43b and 43c, these sealing rings 43b, 43c running around the head portion without interruptions (except notches 44, for example two notches 44, one each) can be seen in the oblique view of Fig. 16.) A "first sealing ring 43a" is carried out completely without interruptions. The first sealing ring 43a is closer to a head end (liquid application part) than the sealing rings 43b, 43c, ie arranged distally relative to the sealing rings 43b, 43c. Furthermore, the embodiment of the head part according to FIG. 16 has two (one another

opposite) claws 18 on. In the circumferential direction between the claws 18 are guide elements 45, which are also opposite each other. Between the guide elements 45 and the claws 48 are (four in total) slots 37. The defined by the slots

Circular arc sections are opposite to those by the guide elements defined arc sections relatively small. At least 80% of the total circumference in the area of the claws 18 and the

Guide elements 45 is thus formed by the elements 44, 45. As can be seen in particular in FIGS. 18 and 19, the claws 18 each have at their end a (radially inwardly directed) projection 46. This projection is driven against the ampoule (not shown) so that it breaks. This can be seen further from FIGS. 20 and 21.

In particular, FIGS. 18 and 19 furthermore show axially extending ribs 47, one of which is arranged on an inner peripheral surface of an associated guide element 45. Through these ribs, the ampoule can be reliably positioned so that a controlled and defined breakage is made possible. Ends 48 of the ribs 47, which first come into contact with the vial (not shown), are configured to securely position the vial.

FIGS. 20 and 21 show an embodiment of the application pen with a head part according to FIGS. 17 to 19 in sectional views. Fig. 21 shows the state before breaking the ampoule 15. Fig. 20 shows a state after breaking the ampoule 15. The position shown in FIG. 20, starting from the position shown in FIG. 21 by a screwing analogous to the embodiment of FIGS 14 and 15 (see above) realized. In this respect, threads 40, 41 corresponding to the embodiment according to FIGS. 14 and 15 are also provided here. Alternatively, a (purely) translational movement of the head part can be made possible.

As can further be seen in particular in FIG. 16, FIGS

Guide elements 45 arranged on an outer peripheral surface part ring sections 49, which is another barrier against a

Form fluid passage.

Starting from FIG. 21, the head part moves in the direction of the rear end until it reaches the end position according to FIG. 20. As in FIG. 21 can recognize the sealing rings 43b, 43c already in contact with the

Base Part 10. Due to the notches provided in the sealing rings 43b, 43c (see Fig. 16), air may flow through the notches 44, so that overpressure resulting from the head part reaching the position in Fig. 21 has already traveled a certain distance, leaving an inner

Volume of the application pen has become smaller, can be reduced. On the other hand, the notches 44 are also dimensioned so that a (low) pressure remains, which is desirable in view of the filling of the application part. If the head part is then moved further until it reaches the position in FIG. 20, the sealing ring 43a is also in contact with the base part 10 (the sealing ring 43a can be seen in detail in FIGS. 18 and 19). Since the sealing ring 43a has no interruptions (notches), thus a tight closure between the head part and the base part is realized. The base part 10 (see Fig. 22 and Figures 20 and 21) has a

Cross structure 50 on. The cross structure 50 comprises a plurality of (actually four) circumferential rings 51. These rings (partially) continue to prevent leakage of liquid. In addition, the rings 51 improve the grip of the

Base part, so fulfill a dual function, so that total material can be saved. Furthermore, the cross nut 50 includes axially extending ribs 52 which intersect the rings 51. Ends of the ribs 52 are chamfered. This facilitates, on the one hand, the sliding of the cap 12 and, on the other hand, the gripping of the base part 10. The ribs 52 are therefore also "dual-functional" and allow further material to be saved The rings 51 are preferably (as can be seen in FIGS. 20 and 21) not arranged at the same height with respect to a center axis, but viewed on an ascending height from the one end or only at the other end They can also be arranged at the same height, and the rings 51 can also be provided without ribs 52 or vice versa (the ribs 52 can be provided without rings 51), so that a cross structure 50 does not necessarily have to be formed. LIST OF REFERENCES

3 hollow body

10 base bodies

1 1 headboard (moving section)

12 cap

13 exit area

14 back end

15 ampoules

16 sponge

17 liquid applied felt

18 claw

19 stop

20 stop

21 arrow

22 end

23 run-up slope

24 At an angle

25 slot

26 sealing ring

27 screw thread

28 cone section

29 cone section

30 ring slanted surface

31 ring inclined surface

32 recess

33a - 33c sealing ring

34 annular groove

35 annular constriction

36 peripheral surface

37 slot

38a, 38b sealing ring 39 ring groove

40 threads of the cap 12

41 Thread of the base body

42 positioning pins

43,43a,

43b, 43c sealing rings or lips

44 notch

45 guide element

46 lead

47 ribs

48 end

49 partial ring sections

50 cross structure

51 ring

52 rib

Claims

claims

1. application pen for dispensing a liquid onto a surface, preferably for applying a protective layer on adhesive surfaces of a vehicle, in particular for adhesion improvement in adhesive applications, comprising a hollow body (3) and an in the hollow body received ampoule (15), comprising a peripheral surface, for receiving the liquid, wherein the ampoule (15) for the exit of the

Liquid can be broken

wherein a breaker is provided with an axially movable portion and is formed such that movement of the movable portion (11) in the axial direction results in breaking of the vial (15).

2. Application pen according to claim 1,

characterized in that

the movable section (11) is arranged so as to be deflected by an axial impact on one end of the

Application pin is moved in the axial direction, so that the ampoule breaks and / or

characterized in that

a rotatable portion is provided such that rotation of the rotatable portion drives the movable portion in the axial direction, so that the ampule breaks.

3. Application pen according to claim 1 or 2,

characterized in that

the breaking device comprises a deflection device such that a force which acts axially on account of the movement of the movable section is deflected in the direction of the peripheral surface of the ampoule (15). Application pen according to one of the preceding claims, characterized in that

the breaker comprises at least one, preferably flexible, claw, in particular such that the claw is driven by the axial movement of the movable portion against the peripheral surface of the ampoule (15).

Application pen according to one of the preceding claims, characterized in that

the hollow body (3) comprises a head part (11) and a base body (10), wherein the base body (10) comprises an end of the application pin which faces away from an exit region (13), preferably wherein the head part (11) is opposite the base part (11). 10) is movable in the axial direction,

more preferably, wherein the head part (11) is at least partially guided within the base body (10) and / or

Preferably, wherein the at least one claw (18) according to claim 4 is provided on the head part (11).

Application pen according to one of the preceding claims, in particular according to claim 5,

characterized in that

a head part (11), in particular the head part (11) according to claim 5, has at least one porous liquid absorption body, in particular at least one absorption sponge (16) and / or at least one liquid application part, in particular

Liquid application felt (17) for applying the liquid to the surface.

Application pen according to one of the preceding claims, characterized in that

the hollow body (3), in particular a base body (10) and / or a head part (11) of the hollow body, at least one run-on slope (23, 24), Preferably, on an inner peripheral surface of the base body and / or on an outer peripheral surface of the head part, such that an axially acting force is converted into a radially inwardly directed force.

Application pen, in particular according to one of the preceding

Claims for applying a liquid to a surface, preferably for applying a protective layer to adhesive surfaces of a vehicle, in particular for adhesion improvement in adhesive applications, comprising a hollow body and an ampoule (15) accommodated in the hollow body for receiving the liquid, wherein the ampoule for discharging the liquid can be broken, wherein the hollow body (3) has at least two parts, preferably at least three parts,

wherein at least one sealing ring (26, 33a - 33c, 38a, 38b), in particular a sealing lip, is provided on at least one surface, in particular peripheral surface, of one of the parts which faces a surface, in particular peripheral surface, of a further part.

Application pen according to one of the preceding claims, in particular according to claim 8,

characterized in that

a part of the hollow body is a base body (10) comprising an end of the application pin facing away from an exit region (13) and / or a part of the hollow body (3) is a head part (11) adjoining the base body (10)

and / or a part of the hollow body (3) is a closure cap (12).

Application pen according to one of the preceding claims, in particular according to claim 8 or 9,

characterized in that

at least one sealing ring has at least one interruption, in particular notch, wherein the interruption is preferably shorter than 3 mm, in particular shorter than 1, 5 mm and / or longer than 0.3 mm, in particular 0.7 mm,

wherein more preferably at least a first sealing ring without

Interruption is provided and at least a second sealing ring is provided with at least one interruption, wherein the first

Sealing ring is preferably arranged distally relative to the second sealing ring.

11. Application pen according to one of the preceding claims,

marked by

a closure cap (12) for closing the hollow body (3), preferably wherein the closure cap (12) comprises a, preferably porous, liquid application part, in particular a liquid application felt (17), in particular such that the closure cap (12) is separated from the base body (10) and / or head part (11) can be removed together with the liquid application part.

12. Application pen according to one of the preceding claims,

characterized in that

a removable film element, in particular label, to the

Application pin is arranged around,

preferably wherein the film element is arranged around the head part (11) and / or between the closure cap (12) and base body (10). 13. Application pen according to one of the preceding claims,

characterized in that

the head part (11) comprises a preferably flexible plastic end piece with a narrow slot (25) for dispensing the liquid, the slot (25) preferably having a diameter of less than 1 mm, more preferably less than 0.5 mm.