KR20110128912A - Repair nozzle - Google Patents

Abstract

The present invention relates to a repair nozzle (100, 200) for dispensing a viscous material (315) that can be used in the automotive sector by means of a dispensing gun (300) coupled from a container (313) containing the mentioned material, The repair nozzles 100, 200 have proximal product feed ends 101, 201, which proximately fix the repair nozzles 100, 200 to the container 313. And at least one sealing element 109, 115, 209, 212 for providing a sealing capability between the means and the repair nozzle 100, 200 and the container 313.

Description

Repair Nozzle {REPAIR NOZZLE}

FIELD OF THE INVENTION The present invention relates to nozzles for producing, in particular regenerating, reproducing and restoring material beads in the automotive sector, in particular adhesives and / or sealants with different surface structures.

In mass production in the automotive sector, these beads are automatically applied by an application robot. The beads serve to bond the sheet metal parts together, act as a barrier against noise or temperature effects, or serve as a sealant. Application nozzles or robot nozzles used are generally made of metal and must have a long service life in order to prevent failure of the application robot due to defective application nozzles during mass production. Subsequent application of adhesives and / or sealants, in particular after the accident, for example to regenerate or reproduce the structure in the automotive sector, is not possible with known application methods using application nozzles. Aftermarkets, in particular, most car repair shops do not have an application robot, which is essential for their own processing plant. In addition, purchasing a particular application nozzle even for such uses is not practical for aftermarkets, especially repair shops, due to the high price of the application nozzle.

It is therefore an object of the invention to provide a nozzle for dispensing viscous material in the automotive sector for the aftermarket and in particular for repair shops to recover or restore structures made in mass production.

The invention is achieved in the form of claim 1.

Advantageous embodiments of the invention are presented by the dependent claims.

The basic idea of the present invention is a repair nozzle for dispensing viscous materials useful in the automotive sector using a dispensing gun combined in a container containing the viscous material, for example a cartridge or a container such as a tubular or film pouch. Is to use. The repair nozzle includes means for removably securing the repair nozzle to the container and a proximity product feed end that includes at least one sealing element to provide a sealing capability between the repair nozzle and the container.

The viscous materials used may be adhesives and / or sealants and / or noise- and / or vibration-damping materials, in particular known in mass production in the aftermarket and / or automotive sector, which may be sticky or It can be very sticky or even doughy. These materials are contained in containers. Possible ones for the container used are, in particular, known cartridges, for example made of plastic material or aluminum. The cartridges generally comprise a cylindrical body, a movable piston provided at one end to squeeze the adhesive and / or sealant contained in the cartridge, and an outlet opening provided at the opposite end for dispensing the viscous material. The piston is moved inside the cartridge by the action of a force, so that the viscous material can be dispensed. The general noun “vessel” is of course also to be understood to encompass the use of the same and suitable container known to those skilled in the art, in particular the use of known film pouches and / or tubular pouches.

Dispensing guns suitable for use are, in particular, cartridge guns. Pneumatically operated guns are preferred, where viscous material can be dispensed from the vessel through the nozzle by the pneumatic system. Such guns are particularly suitable for use with the repair nozzles according to the invention because compressed air is available at most car shops, thus enabling the distribution of viscous materials with little effort for the users. As described in the international patent application PCT / EP2006 / 004600, it is particularly suitable to use special compressed air guns for the release of viscose with low viscosity materials. For aspects related to the cartridge gun, reference may be made to the above-mentioned citation, in which disclosure the disclosure supplements the disclosure of this patent application. Also consider the use of fully mechanically operated guns known to those skilled in the art. These are for example suitable for use in areas where compressed air use is not possible. However, pneumatically actuated cartridge guns are preferred, especially in the automotive sector, where very sticky materials such as adhesives and / or sealants are often applied, which can produce higher extrusion pressure than purely mechanically operated guns. Particularly suitable is the use of special pneumatic guns.

The repair nozzle is preferably made of plastic. The repair nozzle is preferably a disposable product. Therefore, this nozzle is discarded after dispensing viscous material. In this case no countermeasures for cleaning the nozzles are made, so working time can be reduced and further aids and cleaning materials for removing material residues can be omitted. Means for detachably securing the repair nozzle to the container are preferably provided at the proximate product feed end. This may in particular be a threaded portion that engages with a corresponding threaded portion of the container to secure the nozzle to the cartridge. When a repair nozzle is used as a container for a viscous material in combination with a film pouch and / or a tubular pouch, it is known in the existing art, which consists of parts which make it possible to detachably fix the nozzle using the means mentioned above. Appropriate adapters or attachment devices are preferably utilized. With regard to the use of nozzles with threaded portions, it is particularly conceivable to adapters with corresponding threaded portions.

In addition, a protruding collar may be provided at the portion of the proximate product feed end to support the repair nozzle against the container. When a force acts on the repair nozzle, the repair nozzle is supported against the container by a protruding collar, for example by placing the repair nozzle in the base to discharge the viscous material, so, in particular, the repair nozzle and / or Damage to the container and / or loosening of the repair nozzle secured to the container can be avoided as a result of the force acting on the repair nozzle. In addition, in some dispense guns, the collar may serve to support the repair nozzle against the dispense gun. For this purpose, the repair nozzle is connected to the container by means of the connecting means already mentioned and is located in the dispensing gun with the container. The repair nozzle preferably projects at least its distal end out of the opening of the dispensing gun. This opening is of a particular dimension so that the collar of the repair nozzle can be supported at the proximal end with respect to the portion of the dispensing gun that delimits the opening. The opening is therefore preferably smaller than the collar of the repair nozzle. When pressure is applied to the vessel through the dispense gun to dispense the viscous material from the vessel, the viscous material is compressed with the repair nozzle in the direction of the end product dispensing end of the repair nozzle. The protruding collar of the repair nozzle supports the repair nozzle against the cartridge gun so that movement of the cartridge with the nozzle is prevented, and viscous material can be dispensed through the repair nozzle.

In addition, the repair nozzle consists of at least one sealing element to provide a sealing capability between the repair nozzle and the container. With this sealing element, it is possible to ensure that the dispensing material does not leak out, in particular in the part which is removably fixed between the repair nozzle and the container, especially between the two components, when dispensing the material through the repair nozzle. . The use of at least one such sealing element is necessary, in particular because of the material dispensed. Such materials, in particular adhesives, sealants, and / or noise- and / or vibration-damping materials, are generally sticky and / or very sticky. The distribution of material through the nozzle is accomplished by the application of a large amount of force and / or pressure, and thus even the smallest gap between the repair nozzle and the container can cause undesirable material leakage. This leaked material may no longer be used as intended and may contaminate and / or endanger the dispensing gun, working environment, or user. Undesired bleeding of this kind of material can also result in pressure loss in the nozzle and negatively affect the formation of beads that are released, especially as a result of the application.

The use of a sealing ring provided at the proximal end of the repair nozzle is particularly suitable as a sealing element and upon contact with the repair nozzle onto the container, comes into contact with the container in such a way that sealing is possible. Additional approaches are, of course, also possible. In particular, or in addition, in addition, the means for separably fastening may act as a sealing element and include a sealing function. The use of the threaded part as a means for separably fastening mentioned above is particularly conceivable in this regard. The sealing function can already be achieved with the thread itself fitting to the correct placement of the thread rotation and the corresponding thread of the container, in particular within the minimum possible tolerance. The fixed connection between the repair nozzle and the container is therefore self-sealing because of the correct placement, which means that when installing the repair nozzle in the container, the threaded part of the repair nozzle is arranged so that the thread rotation is placed closely to the side of the corresponding thread of the container. By Therefore, leakage of the material to be dispensed can be prevented. Intrusion of material into the thread which can make it difficult to unscrew the repair nozzle from the container can also be prevented. Undesirable waste of material and contamination of the work means and / or work environment and / or the user's own can be avoided by the sealing ability.

The use of a repair nozzle according to the invention brings a number of advantages. In particular, surface structures produced automatically in connection with mass production in the automotive sector can be reproduced or reproduced in auto repair shops, for example in the case of repairs, in aftermarket and in particular repair shops. Accidental damage to such surface structures can in particular be repaired in this way. The use of an application robot required in mass production to release viscous materials, for example adhesives and / or sealants, to produce the structure can be omitted. Thus, by using a repair nozzle according to the invention, a viscous material which is used as standard in the automotive sector and which is automatically applied in mass production can then be applied, in particular in aftermarket, for example in repair shops, in particular in repairs. May be applied in the case.

A further advantage is that the repair nozzle is provided with a slit-shaped end opening at the end product dispensing end for dispensing the material beads. This slit-shaped terminal opening has proved particularly advantageous for widespread bead application, and the base layer is coated with a material that is distributed over a large area. Therefore, depending on the choice of the material to be dispensed, excellent adhesion and / or sealing effects and / or noise- and / or vibration-reducing effects can be obtained, in particular. Repair nozzles are preferably used for dispensing viscous material in bases that do not have large gap sizes, so the use of slit-shaped end openings is particularly suitable. Beads applied through the repair nozzles according to the invention serve as barriers or sealants to the adhesive bonding, sound or temperature effects, in particular in the automotive sector. The material bead is relatively wide relative to its height due to the slit-shaped end opening. Beads are ripple flat beads of definite dimensions, ie the width and / or height and / or appearance of the beads correspond to the design of the adhesive and / or sealant beads of the original equipment manufacturer, which has so far been achieved only through robotic application. . In addition, there is no excess spraying due to the material beads dispensed by the repair nozzle. So the user gets a material bead with sharp edges instead of rugged edges. In addition, the slit-shaped end openings represent a continuous film and thus can be used to provide a material surface that each provides improved adhesive bonding and sealing.

An additional advantage is the use of a robot nozzle consisting of a sealing element for providing a sealing capability between the repair nozzle and the container, in combination with the slit-shaped end opening. The slit-shaped end openings cause an increase in pressure inside the nozzle compared to conventional nozzle openings, which surround a significantly larger end area and, at the same force and / or applied pressure, a larger volume of material dispensed. Enable the flow of Therefore, it is particularly useful and advantageous to mount one or more sealing elements to the repair nozzle when a repair nozzle with a slit-shaped end opening is used, which is due to the high internal pressure of the repair nozzle, even with very small defects or gaps in the ejection of the material. Because it can be imported.

It has proved particularly advantageous to use a sealing element at the proximate product feed end in the product feed opening portion of the repair nozzle, which is arranged with a sealing rim ring extending in the proximal direction. This sealing rim ring preferably extends annularly around the product feed opening. Since it extends in close proximity, this sealing rim ring projects toward the container upon fixing the repair nozzle to the container. This sealing rim ring preferably extends so that when the repair nozzle is fixed, the sealing rim ring contacts the container and is thus sealed between the repair nozzle and the container.

A further advantage is the arrangement of a repair nozzle with a jacket portion which preferably surrounds the product tube for conveying material from the product feed end to the product dispensing end, wherein the projecting lip reinforces the fixing means at least in part of the fixing means and / or Or in the jacket portion to facilitate fixing of the repair nozzle to the container. The use of the lip at the jacket surface is particularly advantageous when repair nozzles with threaded portions are used. The lip enables reinforcement of the threaded part by preventing thread deformation and providing reinforcement for the repair nozzle. Breakage of threads can be avoided, especially when a force is applied to the repair nozzle during material application. When the thread is placed as a sealing element, the lip further enhances the sealing function as a result of the strengthening. Even when significant forces and / or pressures are applied, no deformation of the thread occurs, so that the sealing capacity between the repair nozzle and the container in the assembled state can be ensured. An additional advantage of the lip is that it facilitates fixing of the repair nozzle to the container. The lip provides a good grip for fixing the repair nozzle to the user, for example by turning the repair nozzle when the thread is used in the connection technique.

A further advantage is the formation of a guide projection of the jacket portion, in particular to facilitate the ability of the repair nozzle to guide along the edges in dispensing the material. Guide projection is preferably provided at the distal output end of the repair nozzle. In this regard, the projection may be integrally formed with the nozzle. When a repair nozzle having a slit-shaped end opening is used, guide projection can also be utilized to sense the orientation of the slit when the repair nozzle is fixed to the container by the user. Review of the slit-shaped end openings is no longer necessary.

A further advantage is the formation of a collar to support the repair nozzle against the container at the near product feed end. The use of such collars, in particular, allows the force acting on the repair nozzle to be transferred to the container and damage to the repair nozzle can be avoided.

A further advantage is the inclined arrangement of the part delimiting the opening of the product feed at the proximal end of the repair nozzle, to allow simple assembly of the repair nozzle and the container. Where the inclined surface is installed on the inner wall of the jacket surface, which delimits the product feed opening, in such a way that a funnel shape opened in close proximity to the product feed opening is provided to facilitate the introduction of the container into the product feed opening. I can think of it.

Further advantages with the use of repair nozzles include product tubes for conveying the material dispensed, from the product feed end to the product dispensing end; And an end plug consisting of a slit-shaped end opening and integrally formed at the product dispensing end, which is installed in the repair nozzle, which is convex in the distal direction of the nozzle. This shape has proved to be particularly advantageous. The product tube is preferably tapered from the proximate product feed end towards the end product dispensing end to increase the flow rate of the material within the product tube. A slight taper is also suitable to counteract the pressure drop of the material caused by friction against the inner wall of the product tube. The installation of convex end plugs in the repair nozzle in the direction of the end product dispensing end makes it possible, in particular, to simplify the manufacture of the repair nozzle. In particular, the unmolding of the repair nozzle made of plastic using the injection molding process is very simple by the convex end closure. In addition, repair nozzles with convex end caps exhibit excellent flow characteristics, and thus the pressure drop of the material within the repair nozzle can be reduced. This nozzle shape is particularly suitable for applications without sizing of the material beads to be made. For example, special repair nozzles are used, which may be provided with slit-shaped end openings which are prefabricated for the material to be dispensed and / or for the particular application. Repair nozzles of this kind can provide the user with a calibrated end opening for dispensing material and / or use cases in all cases, thus avoiding errors.

A further advantage of using a convex end plug at the end product dispensing end is the provision of a slit-shaped terminal opening across the convex top of the convex end plug. "Convex surface apex" is understood here as a point of the convex end plug, the point which protrudes farthest in the distal direction of the repair nozzle. The extension of the slit-shaped end openings over the convex surface apex is particularly advantageous in terms of flow engineering. When the material is dispensed, it is also released laterally locally due to the convexity of the slit-shaped end openings, so that the user can obtain a material bead wider than the diameter of the repair nozzle of the portion of the end product dispensing end without the convex end plug. .

As an alternative to a repair nozzle equipped with a convex end cap, the repair nozzle also includes a product tube for transferring material from the product feed end to the product distribution end; And a jacket portion including a slit-shaped end opening and extending trapezoidally in the distal direction, the base of the trapezoidal jacket portion being arranged at the end product dispensing end. The repair nozzle may be divided into two parts, the first part of the proximal part of the repair nozzle comprising a product tube tapered slightly in the distal direction, which is adjacent to the end of the repair nozzle by a trapezoidal jacket part. The taper of the product tube once again causes an increase in the flow rate of the material in the product tube and / or offsets the drop in pressure of the material which occurs due to friction against the inner wall of the product tube. The trapezoidally shaped jacket portion is preferably hollow at the end product dispensing end, so that the base of the trapezoidal jacket portion at the end product dispensing end forms a slit-shaped end opening. The slit-shaped terminal opening can of course also consist only of the base part. With the jacket portion of this arrangement, a repair nozzle with a particularly wide slit-shaped end opening can be produced so that material beads can be released very widely. Trapezoidal formation of the jacket portion has additional advantages. It is conceivable that the trapezoidal jacket portion is cut to size by the user by separating a portion of the jacket portion such that the trapezoidal jacket portion no longer extends to some extent later in the distal direction. Thanks to the trapezoidal design of the jacket portion, the separation of the distal portion of the jacket portion is accompanied by a reduction in the size of the base of the jacket portion. In the case of the hollow jacket portion described above, it is possible to reduce the size of the slit-shaped end opening that extends over the base of the jacket portion after the cut to size described above is cut to size once. Therefore, the user is provided with a repair nozzle in which the slit-shaped opening can be adjusted by cutting the jacket portion to the dimensions that match the material beads to be dispensed. To this end, marking and / or engraving and / or preferential separation aids, for example cutting lines, may be provided on the repair nozzle, in particular on the jacket portion, whereby the user of the jacket portion can obtain a specific slit-shaped nozzle orifice. The line portion can be cut. Particularly for the automotive sector, the trapezoidal formation of the jacket part has proved to be particularly advantageous, so that the jacket part can be cut to dimension so that a width between 1 cm and 12 cm can be established for the slit end opening. With such a part a repair nozzle that can be used generally can be provided, which can cover most of the common bead widths, especially in the automotive sector, with which conventional structures can be reproduced and / or reproduced.

A further advantage of installing the product tube in the nozzle is at least partially rotationally symmetrical formation of the product tube, with the axis of rotation extending from the proximal product feed end to the end product distribution end.

A further advantage of at least in part the rotationally symmetrical formation of the product tube is the provision of a slit-shaped terminal opening extending over the axis of rotation of the product tube.

A further advantage is the provision of a repair system for regenerating the structure in the automotive sector, which consists of a repair nozzle, a dispensing gun and a container containing the material to be dispensed, the repair nozzle comprising means for mounting to a container containing the material to be dispensed and And a proximate product feed end provided with at least one sealing element provided to enable sealing capability between the repair nozzle and the container. With this kind of system, a user can reproduce and / or reproduce a structure automatically produced in mass production, for example, without having to resort to an application robot.

A further advantage with the use of this kind of repair system is the fact that the end product dispensing end is installed in the repair nozzle, a slit-shaped end opening is provided at the end product dispensing end for dispensing the material beads. This slit-shaped terminal opening has proved particularly advantageous for widespread bead application, and the base layer is coated over a wide area with the material being dispensed. In addition, through the slit-shaped end openings, it is possible to provide a material surface which exhibits a continuous film and thus provides bonding or sealing of improved adhesion.

1 is a perspective view of a repair nozzle according to the invention with a sealing element,
2 is a side view of the repair nozzle of FIG. 1,
3 is an AA side cross-sectional view of the repair nozzle of FIG. 2,
4 shows a detailed view of B of the side cross-sectional view of the repair nozzle of FIG. 3,
5 is a partial side cross-sectional view of a repair system including a dispense gun, a container, and the repair nozzle of FIG. 1,
6 shows a detailed view of C of the repair system of FIG. 5,
7 is a side sectional view of an alternative embodiment of a repair nozzle according to the invention with a sealing element.

The invention is described in detail below through examples with reference to the drawings.

1 is a perspective view of a repair nozzle 100 according to the invention, which repairs viscous materials, such as adhesives, sealants and / or noise- and / or vibration-damping materials useful in the automotive sector. From a container containing a container (not shown), it is utilized for dispensing through a combined cartridge gun (not shown). The repair nozzle 100 consists of a near product feed end 101 on which the repair nozzle 100 is separably fixed to the container and an end product dispensing end 102 for dispensing the material to the substrate. Provided to the proximate product feed end 101 is a product feed opening, which is adjacent to the product tube and the product tube is substantially rotationally symmetric about the axis of rotation 106, and the proximate product feed end 101 and the terminal product distribution end. Between 102 indicates a connection for the material to be dispensed. The product tube is surrounded by a sleeve portion of the repair nozzle 100 and a slightly conical tapered jacket portion 104. Provided at the proximate product feed end 101 is a collar 107, which projects radially outward with respect to the axis of rotation 106 and enables the support of the repair nozzle 100 against the container. In particular with regard to the force acting on the repair nozzle 100 when the material is dispensed, the repair nozzle 100 is supported by the collar 107 with respect to the container in which it is mounted. The collar 107 thus serves to support the load, thereby preventing possible breakdown of the repair nozzle 100 while the material is being dispensed. A sealing rim ring (not shown in this figure) extending in the proximal direction is formed integrally with the collar 107 as a sealing element. The jacket portion 104 includes a threaded sleeve 113 at the proximal end. Threaded sleeve 113 encloses a hidden internal thread for securing repair nozzle 100 to the container. Protruding assembly aids 110 extending in the axial direction are provided around the circumference of the threaded sleeve 133. The assembly aid 110 provides a good grip force to the user when securing the repair nozzle 100 to the container via an internal thread. A multi-protruding lip 111 is provided in the jacket portion 104, in particular for reinforcing and stabilizing the repair nozzle 100 and internal threads, the multi-protruding lip proximate a part of the assembly aid 110 and the axis of rotation ( Extending to the outer surface of the jacket portion 104 in the axial direction with respect to 106. In particular with respect to the force acting on the repair nozzle 100 during material dispensing, the lip 111 can prevent breakage of the repair nozzle 100 and the thread 114 as a result of the reinforcing effect. At its distal end, the jacket portion 104 includes a guide projection 112. The guide projection protrudes from the jacket portion 104 and extends in the direction of the axis with respect to the axis of rotation 106. Guide projection 112, in particular, provides a guide capability for repair nozzle 100 along the edge when the material is dispensed, and facilitates accurate material distribution.

The workpiece is dispensed through a slit shaped end opening 103 provided in the end closure 108 at the end product dispensing end 102. The end plug 108 is convex in the distal direction of the repair nozzle 100, and the slit-shaped end opening 103 extends over the convex surface apex of the convex end plug 108. In this embodiment, the axis of rotation 106 further extends beyond the slit-shaped terminal opening 103. A material bead having a low applied height compared to the width applied over the base layer may be dispensed into the slit-shaped terminal opening 103. This is particularly advantageous in the automotive sector with regard to adhesive bonding of the components, which is distributed over the widest possible area of the substrate, for example in order to achieve a sufficient adhesion and / or sealing effect while the thickness of the material is kept as low as possible. This is because the material to be supplied must be supplied. The wider distribution of the material beads is further ensured by the use of convex end plugs 108 and the fact that the slit-shaped end openings 103 extend over the convex face apex of the end plug 108, which means In the jacket portion of the slit-shaped end opening 103, it can be distributed outwardly in a partial radial direction with respect to the rotation axis 106 as well as in the axial direction with respect to the rotation axis 106.

2 is a side view of the repair nozzle 100 of FIG. 1. The portion of the jacket portion 104 included with the threaded sleeve 113 has an expanded circumference compared to the remaining jacket portion 104 and is included in the proximity product feed end 101. Threaded sleeve 113 includes a protruding assembly aid 110. The reinforcing lip 111 extends in the direction of the axis in the distal direction of the jacket portion 104 and is formed integrally with one assembly aid 110. An additional reinforcing lip 111 is provided on the other side of the repair nozzle 100 and is not visible in the figure shown. The collar 107 is integrally formed at the proximal end of the threaded sleeve 113. The proximal end of the repair nozzle 100 at the proximate product feed end 101 is formed by a protruding sealing rim ring 109. Also evident at the end product dispensing end 102 is the guide projection 112, which protrudes from the jacket portion 104 and locally protrudes in the distal direction into the convex end stopper 108.

3 is an A-A side cross-sectional view of the repair nozzle of FIG. 2. The repair nozzle 100 includes a product tube 105 which is at least locally rotationally symmetric about the axis of rotation 106. Product tube 105 means a connection for the material to be dispensed between the near product feed end 101 and the end product dispensing end 102. The product tube 105 therefore connects the product feed opening 116 to the slit-shaped terminal opening 103 of the convex end plug 108. The product tube 105 is rubbed against the inner wall of the product tube 105 and / or to speed up the flow rate of the material in the product tube 105 from the proximal product feed end 101 towards the end product distribution end 102. It is tapered to offset the drop in material pressure that results. The product tube 105 is surrounded by a sleeve shaped jacket portion 104 of the repair nozzle 100. The jacket portion 104 includes a reinforcing lip 111 and at the proximal product feed end 101 is installed an internal thread 114 on which the repair nozzle 100 is fixed or mounted together in a container with a corresponding external thread. It is. The inner thread 114 is a precise thread designed to the size of the corresponding outer thread of the container, in such a way that the sealing function is achieved by the sealing portion 115 inside the thread. Therefore, the fixed connection between the repair nozzle 100 and the vessel is such that when the repair nozzle 100 is mounted to the vessel, the internal thread 114 of the repair nozzle 100 is such that the thread rotation lies close to the side of the corresponding thread of the vessel. Due to the fact that it is arranged, as a result of precise placement, it is self-sealing. The outer threads of the vessels used are generally standardized and of a predetermined size, which results in the precise execution of the thread rotation of the inner threads 114 and the exact fit of the corresponding threads of the vessels, particularly with the smallest possible tolerances, resulting in a sealing function. It can already be achieved with threads. The inner thread 114 of the repair nozzle therefore provides the first sealing element of the repair nozzle 100 together with the sealing portion 115. Undesired or defective leaking of the material to be dispensed can be prevented, and further penetration of the material into the thread which can make it difficult to unscrew the repair nozzle 100 from the container can also be avoided.

With regard to the placement of the internal thread 114 as the first sealing element, the assembly aid (not shown in the figure) and / or the reinforcing ribs 111 further enhances the sealing function as a result of the reinforcement. Even when a large force and / or pressure is applied, deformation of the internal thread 114 hardly occurs, and thus the sealing ability between the repair nozzle 100 and the container in the mounted state can be ensured. A further advantage of the assembly aid and / or reinforcement lip 111 is the simplicity of fixing the repair nozzle 100 to the container. The assembly aid and / or reinforcing ribs 111 are good for users to secure the repair nozzle 100 when, for example, the corresponding outer thread of the container is screwed onto the internal thread 114 of the repair nozzle 100. Provides grip

In addition, a sealing rim ring 109 is provided as an additional sealing element at the proximal product feed end 101. The ring extends in a proximal direction and annularly surrounds the product feed opening 116. Because of this close extension, the sealing rim ring 109 protrudes toward the container when the repair nozzle 100 is secured to the container. The extension of the sealing rim ring 109 is arranged so that the ring comes into contact with the container when the repair nozzle 100 is secured to seal between the repair nozzle 100 and the container. It is also contemplated that repair nozzle 100 may include only one of the described sealing elements.

FIG. 4 shows a detail view of B in a side sectional view of the repair nozzle 100 of FIG. 3. As is evident in the side view, the sealing rim ring 109 can form a right triangle with two sides of the same length, with the vertices of the right angles facing in the proximal direction. The sealing rim ring 109 is formed integrally with the collar 107. Nevertheless, the sealing rim ring 109 may be a separate component and / or may be connected to other parts of the repair nozzle. It is also possible to fabricate the sealing rim ring 109 from a material different from the repair nozzle, for example, in order to achieve an improved sealing effect. The sealing rim ring 109 annularly surrounds the product feed opening 116. The boundary portion delimiting the product feed opening 116 in this embodiment is constructed and inclined with the outer surface of the collar 107 and the inner wall of the jacket region 104 in contact with each other. This inclined embodiment of the portion at the proximal end of the repair nozzle that delimits the product feed opening 116 allows for easy mounting of the repair nozzle to the container. The inclined surface may utilize a funnel shape and is open in a proximal direction at the portion of the product feed opening 116 to facilitate the introduction of the container into the product feed opening 116.

The repair system depicted in FIG. 5 is a repair nozzle 100, a dispensing gun or cartridge gun 300, and a dispensing material 315, as shown in FIG. 1, for reproducing and / or reproducing structures in the automotive sector. For example a container 313 containing an adhesive and / or sealant. In this case, a cartridge is used as the container 313. The cartridge includes a base surface having a substantially cylindrical body, a movable piston provided at one end for squeezing the material contained in the cartridge, and an outlet opening provided at the opposite end for dispensing the material. The outlet opening can be arranged axially relative to the cylindrical body of the cartridge while using a hollow cylindrical attachment device with a smaller diameter. The attachment device is provided with an external thread that can engage the internal thread of the repair nozzle 100.

The cartridge gun 300 includes a handle 301 that provides the user with the ability to manipulate and guide the cartridge gun 300. To this end, the handle 301 includes a grip portion 306 which is provided with non-slip means or ergonomically shaped to ensure that the user grips when the system is in operation. The handle 301 is provided with a supporting portion 304 to which the receiving unit 303 is connected to the handle 301. The receiving unit 303 has a hollow cylindrical shape and serves to receive the container 313 filled with the material 315 to be dispensed. Product distribution takes place at the discharge end 310 of the receiving unit 303. Provided to the handle 301 for this purpose is a flow regulator 302 which allows the user to adjust the distribution of the material 315 contained in the container 313. This embodiment refers to a cartridge gun 300 operating at pneumatic pressure, and the material 315 can be dispensed by the use of compressed air. The compressed air connector 307 is provided on the handle 301 for this purpose. The user can connect a pressure medium, for example a compressor, to this compressed air connector. Pressure regulator 308 is attached to handle 301 to regulate pressure. Using the pressure gauge 309 provided to the handle 301, the user can read the pressure that is in the cartridge gun 300 and set through the pressure regulator 308. In order to regulate the pressure for the application of the dispensing material 315, the flow regulator 302 can be steered through an actuating lever 305 which is attached to the handle 301 and can rotate in the direction of the handle 301. have. The dispensing of the workpiece 315 in the vessel 313 can be regulated by the degree of rotation of the actuating lever 305 and by the air pressure set in the pressure regulator 308. A forwarding element (not shown) that can be moved in the receiving unit 303 is provided in the receiving unit 303 to dispense the workpiece 315. The action of the pressure on the advancing element causes the advancing element to be moved and the container 313 having the workpiece 315 arranged and dispensed in the accommodating unit 303 to the discharge end 310 of the accommodating unit 303. To the side. The receiving unit 303 includes a closing stopper 311 at the discharge end 310. In this embodiment this closing plug 311 is connected to the cylindrical receiving unit 303 via screw threads and comprises an opening 312 concentrically aligned with the hollow cylindrical shape of the receiving unit 303. The workpiece 315 can be dispensed through this opening 312 out of the container 313 in the receiving unit 303.

In order to prepare the system to start work, a repair nozzle 100 is connected to the vessel 313. The container 313 includes an external thread 314 that can engage with the corresponding internal thread of the repair nozzle 100 for this purpose. To begin working with the system, the container 313 is introduced into the cavity of the receiving unit 313 such that the repair nozzle 100 protrudes out of the receiving unit 303. And the closing plug 311 slides over the repair nozzle 100 and is connected to the receiving unit 303 via the screw connection described above. In the installed state, the repair nozzle 100 protrudes out of the accommodation unit 313 past the opening 311. As a result of the action of pressure on the advancing element (not shown) for dispensing the workpiece 315, the container 313 is pressed in the direction of the discharge end 310 and supported against the closing plug 311. Because of this support, the acting pressure does not move the container 313 with the repair nozzle 100, but instead the material 315, into which the advancing element in the container 313 moves and is dispensed, is the container 313. It can be pushed out and moved through the product tube of the repair nozzle 100 and finally dispensed through the slit-shaped end opening 103.

FIG. 6 shows a detailed view of C of the repair system of FIG. 5, where the repair nozzle 100 is mounted to a container 313 containing the material 315 to which it is dispensed. For this purpose, an internal thread 114 of the repair nozzle 100 is coupled to a corresponding external thread 314 of the container. In the mounted state, the sealing rim ring 109 of the repair nozzle 100 lies close to the end portion 316 of the container 313. In this embodiment, the mutual rotation of the two threaded portions 114, 314 takes place in such a way that the sealing rim ring 319 is locally pressed and / or fitted into the end portion 316 of the container 313 so that a secure seal is achieved. Even in relation to the irregularity of the production-related surface of the end portion 316 can be ensured. Nevertheless, the sealing ring 109 can be formed flexibly, for example, and is clamped to the outer thread 315 so that, for example, by deformation of the sealing rim ring 109, the end portion 316 Can be fitted to the end portion 316 of the container so that a sealing function occurs. In this embodiment, the sealing of the repair nozzle 100 to the container 313 takes place with two sealing elements: on the one hand providing a high precision internal thread 114 of the repair nozzle and thereby sealing part 115. Through portions of the threads 114, 314 by providing a through, through the protruding sealing rim ring 109, which enables a sealing capability against the end portion 316 of the cartridge 313.

7 shows an alternative embodiment of a repair nozzle 200 having a product conduit 205 with a near product feed end 201 and an end product dispensing end 202. The product tube 205 connects the product feed opening 216 at the proximal product feed end 201 to the slit shaped end opening 203 at the end product dispensing end 202. The product tube 205 is disposed substantially rotationally symmetrically about the axis of rotation 206 in the proximal portion of the repair nozzle 200, and in the direction of the end product dispensing end 202, a slit-shaped terminal opening 203. Enclosed by a trapezoidal jacket portion 204, which comprises: The trapezoidal jacket portion 204 is arranged in such a way that the base 208 is arranged at the end product dispensing end 202. The slit-shaped distal opening 203 extends over the base 208 of the trapezoidal jacket portion 204. Also provided at the proximate product feed end 201 is the collar 207, which projects radially outward with respect to the axis of rotation 206 and serves to support the repair nozzle 200 against the container. The trapezoidal jacket portion 204 includes multiple cutting aids 214 arranged on the surface parallel to the base 208. This cutting aid 214 means an indication by which a user can cut off a portion of the trapezoidal jacket portion 204. Because of the trapezoidal shape of the jacket portion 204, cutting off a portion at the end product dispensing end 202 is accompanied by a reduction in the size of the base 208. Therefore, also cutting a portion of the trapezoidal jacket portion 204 reduces the size of the slit-shaped terminal opening 203 extending over the base 208 because of the reduction in the size of the base 208. By doing so, the user can change the size of the slit-shaped end opening 203 by cutting out a portion of the trapezoidal jacket portion 204 to adjust the opening mentioned in accordance with the material dispensed or the size of the required material bead. Can be.

The jacket portion 204 includes a reinforcing lip (not shown), and at the proximal product feed end 201 there is an internal thread 211 which the repair nozzle 200 can be mounted to a container having a corresponding external thread. Is installed. The internal thread 211 is a precision thread as described above and provides the first sealing element with the sealing portion 212. In addition, a sealing rim ring 209 is provided as an additional sealing element at the proximity product feed end 201. The mentioned ring annularly surrounds the product feed opening 216 and extends in a proximal direction. As a result of the proximal extension, when the repair nozzle 200 is secured to the container, the sealing rim ring 209 protrudes in the direction of the container. The expansion of the sealing rim ring 209 is arranged in such a way that it contacts the container when the repair nozzle 200 is filled and locked, thereby causing a seal between the repair nozzle 200 and the container. It is of course also conceivable that repair nozzle 200 comprises only one of the sealing elements described.

100 repair nozzle
101 product feed end
102 Product Distribution End
103 distal opening
104 jacket parts
105 product tube
106 axis of rotation
107 colors
108 end plug
109 sealing rim ring
110 Assembly aid
111 reinforcement lip
112 Guide Projection
113 thread sleeve
114 internal threads
115 sealing parts
116 product feed opening
117 slope
200 repair nozzle
201 product feed end
202 product distribution end
203 distal opening
204 trapezoid jacket part
205 product tube
206 axis of rotation
207 color
208 Donation
209 sealing rim ring
210 threaded sleeve
211 internal threads
212 sealing parts
214 Cutting Aid
216 product feed opening
300 cartridge gun
301 handle
302 flow regulator
303 accommodation unit
304 support part
305 operating lever
306 grip parts
307 compressed air connector
308 pressure regulator
309 pressure gauge
310 emitting end
311 close plug
312 opening
313 cartridge
314 external thread
315 viscous material
316 end part

Claims (14)

Repair nozzles 100, 200 for dispensing viscous material 315 useful in the automotive sector by means of a dispensing gun 300 coupled in a container 313 containing them, are provided in the container 313. At least one sealing element 109, 115, 209, 212 for providing a sealing capability between the repair nozzle 100, 200 and the container 313, and means 114, 211 for separably fixing the 200. Repair nozzle (100, 200) comprising a proximity product feed end (101, 201) comprising a. The repair nozzle (100, 200) of claim 1, wherein an end product dispensing end (102, 202) is provided, comprising a slit-shaped end opening (103, 203) for dispensing the material bead. The sealing border according to claim 1 or 2, wherein at least one sealing element (109, 209) is provided at the proximate product feed ends (101, 201) of the product feed openings (116, 216) and extends in the proximal direction. Repair nozzles 100, 200 arranged in rings 109, 209. 4. The repair nozzles 100, 200 of claim 1, wherein the protruding ribs 110, 111 are used to reinforce the fastening means 114, 211 and / or the repair nozzles 100, 200 of the container 313. Repair nozzle (100, 200) is provided to the jacket portion (104, 204) at least in part of the fixing means (114, 211) to facilitate the fastening of the. 5. The repair nozzle according to claim 1, wherein the guide projection 112 is integrally formed in the jacket portion 104, 204 to facilitate the guiding ability of the repair nozzles 100, 200 along the edge. 6. (100, 200). 6. The collar (107, 207) according to any one of the preceding claims, wherein the collars (107, 207) for supporting the repair nozzles (100, 200) with respect to the container (313) are integral to the proximity product feed ends (101, 201). Repair nozzles 100, 200 formed. 7. The repair according to claim 1, wherein the portion defining the product feed openings 116, 216 is inclined to allow easy assembly of the container 313 and the repair nozzles 100, 200. Nozzle 100, 200. 8. The product tube (105) according to any one of the preceding claims, wherein a product tube (105) is provided for transferring the viscous material (315) from the product feed end (101) to the product dispensing end (102); An end stopper 108 including a slit-shaped end opening 103 is integrally formed in the product dispensing end 102, which stopper is convex in the distal direction of the repair nozzle 100. 9. Repair nozzle (100) according to claim 8, wherein the slit-shaped terminal opening (103) extends over the convex face apex of the convex end cap (108). 8. A product tube (205) according to any of the preceding claims, wherein a product tube (205) is provided for transferring the viscous material (315) from the product tube end (201) to the product dispensing end (202); A jacket portion 204 is provided comprising a slit-shaped end opening 203, which portion extends in a trapezoidal shape in the distal direction, the base 208 of the trapezoidal jacket portion 204 being the end product dispensing end 202. Repair nozzles 200. 11. The repair nozzles (100, 200) according to any one of the preceding claims, wherein product tubes (105, 205) are arranged, at least locally, rotationally symmetrically about the axis of rotation (106, 206). ). 12. The repair nozzle (100, 200) according to claim 11, wherein the slit-shaped end openings (103, 203) extend over the axis of rotation (106, 206) of the product tube (105, 205). A repair system for reviving the structure in the automotive sector, comprising a repair nozzle (100, 200), a dispensing gun (300) and a container (313) containing a viscous material, wherein the repair nozzle (100, 200) is a proximate product feed end. Sealing capabilities between the repair nozzles 100 and 200 and the container 313 as well as means 114 and 211 for removably fixing the repair nozzles 100 and 200 to the container 313 as well as the 101 and 201. At least one sealing element (109, 115, 209, 212) for providing. 14. Repair system according to claim 13, wherein an end product dispensing end (102, 202) is provided, which comprises a slit-shaped end opening (103, 203) for dispensing the material beads.

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