DE102009011178A1 - repairing - Google Patents

Abstract

The present invention relates to a repair nozzle (100, 200) for dispensing automotive-grade viscous materials (315) from a container (313) containing them by means of an associated dispensing gun (300) having a proximal product feed side (101, 201), the means (Figs. 114, 211) for releasably securing the repair nozzle (100, 200) to the container (313) and at least one sealing element (109, 115, 209, 212) for providing a sealing possibility between the repair nozzle (100, 200) and the container (313 ) having.

Description

The The present invention relates to a nozzle for manufacturing, especially for reenactment and restoration and replication of material beads in particular of adhesives and / or sealants different surface structures in the automotive sector.

such Caterpillars are automated in series production in the automotive sector applied by application robot. The caterpillars are used for bonding of sheet metal parts, of insulation against sound or temperature influences or used as a seal. The used Job or robot nozzles are usually made of metal manufactured and must have a long service life to a Failure of the application robot due to a defective application nozzle to prevent in series production. Subsequent application of Adhesives and / or sealants, for example, for restoring or adjusting Such a structure in the automotive field, in particular according to an accident, is with the known application form over a Application nozzle not possible. The aftermarket, especially most workshops have not via a necessary application robot. moreover is already the purchase of a specific application nozzle for the application due to the high cost of the application nozzle for the aftermarket, especially the repair market does not make sense.

task The invention is therefore a nozzle for the Aftermarket and especially for the repair market to provide for the output of viscous materials in the automotive sector, to restore the structures produced in mass production or imitate.

These Invention is solved by the features of claim 1.

advantageous Embodiments of the invention are defined by the subclaims specified.

basic idea The invention is the use of a repair nozzle for dispensing of viscous materials usable in the automotive field from one the viscous material containing container, such as a cartridge or a tube or foil bag, by means of an associated output gun. The repair nozzle has a proximal Produktzuführseite, which Means for releasably securing the repair nozzle includes on the container and at least one sealing element to provide a sealing possibility between the repair nozzle and the container.

at the viscous materials used may be in particular in the aftermarket and / or in series production of the motor vehicle sector known adhesives and / or sealants and / or switching and / or vibration damping Materials that are viscous or highly viscous or pasty could be. These materials are in containers contain. As used containers are in particular known cartridges conceivable which, for example, of a plastic material or may consist of aluminum. Mostly show the cartridges a cylindrical body, wherein on one side a movable piston for squeezing the contained in the cartridge adhesive and / or sealant is provided and on the opposite Side an outlet opening for dispensing the viscous material. The piston is by means of an application of force within the cartridge moved so that the viscous material is spent can be. Of course, under the generic term Container also the use of similar ones to understand the skilled person known containers, in particular the use of known film and / or tubular bags.

Cartridge guns are particularly suitable as dispensing guns used. Pneumatically operated pistols are preferably used in which the viscous material can be dispensed from the container via a nozzle by means of a pneumatic system. These pistols are particularly suitable for use with a repair nozzle according to the invention, since compressed air is available in most workshops, whereby a user-friendly output of the viscous material can be made possible for the user. In particular, the use of a special compressed air gun for ejecting viscous to low-viscosity material, as described in the international patent application PCT / EP2006 / 004600 is described. For the aspects relating to the caulking gun, reference may be made to the cited document, the disclosure of which supplements the disclosure of the present patent application in this respect. Also conceivable is the use of known in the art purely mechanically acting pistols. These are suitable, for example, for use in areas where no compressed air is available. Preferably, however, pneumatic pistols are used, since particularly in the automotive sector often highly viscous materials, such as adhesives and / or sealants are applied, so that the use of special pneumatic pistols, which can produce higher discharge pressures than purely mechanical pistols, especially suitable.

The repair nozzle is preferably made of plastic. Preferably, the repair nozzle is a disposable product. After Issue of the viscous material, the nozzle is thus disposed of. A cleaning of the nozzle is not provided here, so that saved working time and can be dispensed with further auxiliaries and cleaning agents for the removal of material residues. The means for releasably attaching the nozzle to the container are preferably provided on the proximal product feed side. This may in particular be a threaded portion which can be engaged with a corresponding threaded portion of the container to secure the nozzle to the container. When using the repair nozzle with a foil and / or tubular bag as a container for the viscous material are preferably suitable, known in the art adapters or attachments are used, which have a range which a releasable attachment of the nozzle by means of the above means enable. When using a nozzle with a threaded portion, in particular an adapter is conceivable, which has a corresponding threaded portion.

moreover may be a protruding one in the area of the proximal product feed side Collar for supporting the repair nozzle on the Containers are provided. At a force on the repair nozzle, for example, when mounting the repair nozzle on a substrate for discharging the viscous material, supports the repair nozzle by the protruding collar from the container, so that in particular damage the repair nozzle and / or the container and / or a solution of fixing the repair nozzle on the container by the force acting on the repair nozzle can be avoided. With some dispensing guns, the collar can also for supporting the repair nozzle on the Serving as a delivery pistol. This is the repair nozzle with the container via said connecting means connected and together with the container in the dispensing gun inserted. In this case, the repair nozzle preferably protrudes at least with its distal end from an opening of the dispensing gun out. The opening is dimensioned such that the collar of the repair nozzle on the proximal side support the opening bounding parts of the dispensing gun can. The opening is therefore preferably smaller than the opening Collar of the repair nozzle. If you ask for the issue of the viscous material from the container over the latter the dispensing gun with pressure, the container with the Repair nozzle towards the distal product discharge side the repair nozzle pressed. By the above Collar of the repair nozzle it comes to a support the repair nozzle on the dispensing gun, allowing a displacement prevents the container with the repair nozzle and the viscous material over the repair nozzle can be issued.

The Repair nozzle also has at least one sealing element Providing a sealing possibility between the Repair nozzle and the container. Because of this Sealing element can be ensured in particular that when dispensing the material via the repair nozzle no material to be dispensed between the repair nozzle and the container, especially in the area of the releasable attachment exits between the two components. The use of at least one Such a sealing element is particularly due to be issued Materials necessary. These materials, especially adhesives, Sealants and / or sound and / or vibration damping Materials are mostly viscous and / or highly viscous. An edition the materials through the nozzle takes place with large Force and / or pressure, so that even the smallest gaps between the repair nozzle and the container too could lead to an unwanted material leakage. This leaked material can no longer be used as intended be and can be the output gun, the work environment or the user pollute and / or endanger yourself. In addition, could Such unwanted material leakage a pressure loss in cause the nozzle, which in particular the application result, d. H. impair the training of the applied caterpillar can.

In particular, the use of a sealing ring is conceivable as a sealing element, which is provided on the proximal side of the repair nozzle and in the attachment of the repair nozzle to the container with the container comes into contact so that a seal is made possible. Of course, other solutions are conceivable. In particular, alternatively or additionally, the means for releasable attachment may act as a sealing element and include a sealing function. In this case, in particular the above-mentioned use of a threaded portion as a means for releasable attachment is conceivable. By means of a precise design of the threads and a precise adaptation to the corresponding thread of the container, in particular with the smallest possible tolerances, a sealing function can be achieved even within the thread. The attachment between the repair nozzle and the container is thus self-sealing due to the precise design, in that the threaded portion of the repair nozzle is designed so that the threads engage tightly against the flanks of the corresponding thread of the container during assembly of the repair nozzle with a container. Thus, leakage of material to be dispensed can be prevented. In addition, penetration of material into the thread can be prevented, which would make it difficult to solve the attachment of the repair nozzle on the container. An unwanted waste of material and contamination of the work equipment and / or the work environment and / or the user himself may be affected by the Ab sealing possibility are averted.

Of the Use of a repair nozzle according to the invention brings many benefits. In particular, surface structures, automated in the context of series production in the automotive sector have been prepared, for example, in case of repair in the aftermarket and in particular repaired in repair shops of garages or be readjusted. In particular accident damage such surface structures can be repaired this way. On the insert an application robot, which in series production for discharging the viscous material, such as an adhesive and / or sealant for Production of the structures is necessary, can be dispensed with. By the use of a repair nozzle according to the invention So the standard in the automotive field in series production of automatically applied viscous materials, especially in the aftermarket, such as in workshops, subsequently applied, especially in case of repair become.

One Another advantage is the equipment of the repair nozzle with a slot-shaped mouth opening at a distal product discharge side to dispense a bead of material. This slot-shaped mouth opening has proven to be particularly advantageous for applying broad caterpillars, the substrate being over a wide area with the material to be dispensed is wetted. Thus, depending on the choice of to be issued material in particular an excellent adhesive and / or Sealing effect and / or sound and / or vibration damping effect be achieved. Preferably, the repair nozzle comes to issue from viscous materials to substrates which have no have large gaps, so that the use a slot-shaped mouth opening particularly suitable. The on the invention Repair nozzle applied in the automotive field caterpillars are used in particular for bonding sheet metal parts, as insulation against sound or temperature influences or be as Seal used. The material bead is related to its height whether the slot-shaped mouth opening relatively wide. It is a clearly dimensioned corrugated flat caterpillar. That is, the width and / or the height and / or the appearance of the bead the design of the adhesive and / or sealant bead the original equipment manufacturer, which so far exclusively achieved by robot application. It is the over the repair nozzle output material bead also without Overspray. The user thus receives a material bead with sharp and not frayed edges. In addition, over the slot-shaped mouth opening a Material surface to be provided, which is a closed Film has and so improved bonding or sealing provides.

Further Advantages result from the use of a robot nozzle, which is a sealing element for providing a sealing possibility between the repair nozzle and the container has in Combination with a slot-shaped mouth opening. Due to the slit-shaped mouth opening the pressure inside the nozzle increases in comparison to a conventional nozzle opening, which a much larger mouth area includes and with the same force and / or pressure a larger volume flow of material to be dispensed allow. When using a repair nozzle with a slit-shaped mouth opening is therefore the equipment of the repair nozzle with one or several sealing elements particularly useful and advantageous because due the high internal pressures of the repair nozzle itself smallest imperfections or gaps to a faulty Material leakage can lead.

Especially Advantageously, the use of a sealing element at the proximal Product feed side in the area of a product feed opening the repair nozzle proved, the sealing element as configured in the proximal direction extending sealing lip ring is. The sealing lip ring is preferably annular around the product feed opening. By the proximal Extension is the sealing lip ring in a mounting of the Repair nozzle on a container in the direction of Container before. Preferably, the sealing lip ring extends in such a way that this in the attachment of the repair nozzle with the Container comes into contact and so a seal between Repair nozzle and container causes.

A further advantage is the design of the repair nozzle with a jacket region, which preferably surrounds a product channel for transporting the material from the product supply side to the product delivery side, ribs projecting on the jacket region at least in the region of the attachment means for reinforcing the attachment means and / or for facilitating attachment Repair nozzle are provided on the container. In particular, when using a repair nozzle with a threaded portion of the use of ribs on the lateral surface is advantageous. The ribs allow reinforcement of the threaded area by avoiding deformation of the thread and providing a stiffening capability of the repair nozzle. Especially with a force acting on the repair nozzle in the application of material destruction of the thread can be avoided. In the design of the thread as a sealing element, the ribs increase the sealing function by the stiffening additionally. Even with large force and / or high pressure There is no deformation of the thread, so that a possibility of sealing between repair nozzle and container can be ensured in the assembled state. Another advantage of the ribs is the ease of attachment of the repair nozzle to the container. The ribs provide a good opportunity for the user to attach the repair nozzle, for example by twisting the same when using a thread as a connection technique.

One Another advantage is the formation of a leadership advantage on the jacket area, in particular a guide possibility the repair nozzle along an edge when dispensing the material to facilitate. Preferably, the guide projection provided on the distal discharge side of the repair nozzle. In this case, the projection may be integrally formed on the nozzle. moreover The guide projection can be used by the user when using a repair nozzle with a slot-shaped mouth opening when fixing the repair nozzle on a container be used to detect the course of the slot. A supervision on the slot-shaped mouth opening is no longer necessary.

One Another advantage is the formation of a collar on the proximal Product feed side for supporting the repair nozzle on the container. By using such a collar may in particular act on the repair nozzle Transfer forces to the container and Damage to the repair nozzle avoided become.

Another Advantage is the fasted training of the product feed limiting area at the proximal end of the repair nozzle, for easy installation of the repair nozzle with a container to enable. Conceivable here is the equipment the inner wall bounding the product supply port the lateral surface with a chamfer such that in the area the product supply opening in a proximal direction open funnel shape is provided for an introduction of the container in the product feed opening to facilitate.

One Another advantage of using a repair nozzle is the equipment of this with a product channel to be issued Material from the product feed side to the product output side transported and with an integrally formed on the product output side, having the slot-shaped mouth opening End cap, which bulges in the distal direction of the nozzle is. This form has proven to be particularly advantageous. Preferably tapered the product channel from the proximal product feed side in the direction of the distal product discharge side to the flow velocity of the Increase material within the product channel. Also A slight taper around the pressure drop is suitable of the material due to the friction on the inner walls of the Balance product channel. The equipment of the repair nozzle with an end cap arched toward the distal product discharge side enables a particularly simple production of the repair nozzle. In particular, the demolding of plastic repair nozzles Injection molding is by a domed end cap considerably simplified. In addition, has a repair nozzle with a curved end cap excellent fluidic Properties on, so that the pressure drop of the material in the Repair nozzle can be reduced. This nozzle shape is suitable especially for applications where no sizing the material bead must be taken. For example, come one special repair nozzle used, which with a for the material to be dispensed and / or for a particular Use case prefabricated slot-like mouth opening can be equipped. The user can through such a repair nozzle in any case, the right opening for the material to be dispensed and / or the use case provided so that mistakes can be avoided.

One Another advantage of using a curved end cap at the distal product output side is the provision of the slit-shaped Mouth opening over a dome the arched end cap. Under the vaulting is to understand the point of the curved end cap, with the end cap furthest in the distal direction of the repair turdüse protrudes. The extent of the slot-shaped mouth opening over the vaulting is particularly in fluidic Advantageous. When the material is output, it is due to the curvature of the slot-shaped mouth opening also partially applied laterally, so that the user a Material bead gets wider than the pure one Diameter of the repair nozzle in the area of the distal product discharge side without the curved end cap.

As an alternative to equipping the repair nozzle with a domed end cap, the repair nozzle may also be equipped with a product channel for transporting the material from the product delivery side to the product delivery side, and with a shell-shaped mantle region extending trapezoidally in the distal direction, the base of the trapezoidal shell portion is disposed on the distal product discharge side. In this case, the repair nozzle can be subdivided into two regions, wherein in the proximal region of the repair nozzle, a first region can have a product channel which tapers slightly in the distal direction, to which the trapezoidal end region can adjoin in the distal region of the repair nozzle. The rejuvenation of the Pro duct channel again causes an increase in the flow rate of the material within the product channel and / or compensates for a pressure drop of the material due to the friction on the inner walls of the product channel. Preferably, the trapezoidal shaped skirt portion is hollow at the distal product discharge side so that the base of the trapezoidal skirt portion forms the slot-shaped mouth opening at the distal product discharge side. Of course, the slot-shaped mouth opening may also be formed only by parts of the base. With such a shaped jacket area repair nozzles can be produced with particularly wide slit-shaped mouth openings to deploy very wide material beads. The trapezoidal design of the shell region has further advantages. It is conceivable for the user to cut the trapezoidal jacket region by cutting off parts of the jacket region in such a way that the trapezoidal jacket region no longer extends so far in the distal direction. Due to the trapezoidal design of the jacket region, severing a distal region of the jacket region is accompanied by a reduction of the base of the jacket region. In the case of a hollow shell portion described above, a described cutting would result in a reduction of the slot-shaped mouth opening, which now extends beyond the new base after the cutting area has been cut. The user is thus provided with a repair nozzle, wherein the slot-shaped opening can be adapted according to the material bead to be dispensed by cutting the jacket area. For this purpose, in particular markings and / or labels and / or preferred separation aids, such as cutting lines on the repair nozzle and in particular on the jacket area can be provided at which parts of the jacket area can be separated by the user to obtain specific slot-shaped nozzle openings. In particular for the motor vehicle sector, a trapezoidal design of the jacket region has proved to be particularly advantageous, wherein the jacket region can be cut to such an extent that a width between 1 cm and 12 cm can be set for the slot-shaped mouth opening. With such a range, a universally applicable repair nozzle can be provided which, in particular in the motor vehicle sector, covers the most common track widths and with which the usual structures can be restored and / or readjusted.

One Another advantage when equipping the nozzle with a product channel at least partially rotationally symmetric Design of the product channel, with the axis of rotation from the proximal Product delivery side to the distal product delivery side.

One Another advantage in the at least partially rotationally symmetrical Design of the product channel is the provision of a slit-shaped Mouth opening, which over the Rotary axis of the product channel extends.

One Another advantage is the provision of a repair system for Restoration of structures in the automotive sector, consisting from a repair nozzle, a dispensing gun and a container containing the material to be dispensed, wherein the repair nozzle a proximal Produktzuführseite has, on the means for mounting on the material to be dispensed containing container and at least one sealing element for Providing a sealing possibility between the repair nozzle and the container are provided. By such a System can be automated by the user in mass production adjusting and / or restoring prepared structures without that he, for example, fall back on an application robot got to.

One Another advantage of using such a repair system is the equipment of the repair nozzle with one distal product delivery side, wherein at the distal product delivery side a slit-shaped mouth opening is provided, to spend a bead of material. This slit-shaped Mouth opening has proven to be particularly beneficial proven to apply broad caterpillars, the substrate over wets a wide area with the material to be dispensed becomes. Also, over the slot-shaped mouth opening be provided a material surface, which is a closed Film has and so improved bonding or sealing provides.

100

 repairing

101

 Produktzuführseite

102

 Product expenditure side

103

 mouth

104

 cladding region

105

 product channel

106

 axis of rotation

107

 collar

108

 endcap

109

 Sealing lip ring

110

 mounting aid

111

 reinforcing rib

112

 guide projection

113

 threaded sleeve

114

 inner thread

115

 sealing area

116

 product supply

117

 chamfer

200

 repairing

201

 Produktzuführseite

202

 Product expenditure side

203

 mouth

204

 trapezoidal cladding region

205

 product channel

206

 axis of rotation

207

 collar

208

 Base

209

 Sealing lip ring

210

 threaded sleeve

211

 inner thread

212

 sealing area

214

 Abtrennhilfen

216

 product supply

300

 caulking gun

301

 handle

302

 metering

303

 recording unit

304

 support region

305

 actuating lever

306

 grip area

307

 Compressed air connection

308

 pressure regulator

309

 manometer

310

 delivery end

311

 cap

312

 opening

313

 cartridge

314

 external thread

315

 viscous material

316

 forehead

The Invention will be closer by way of example with reference to the drawings explained. Show

1 shows a perspective view of a repair nozzle according to the invention with sealing elements,

2 shows a side view of the repair nozzle 1 .

3 shows a sectional view AA of the repair nozzle 2

4 shows a detail B of the cut side view of the repair nozzle 3

5 shows a partially cutaway side view of a repair system with a dispensing gun, a container and the repair nozzle 1 ,

6 shows a detail C of the repair system 5

7 shows a sectional side view of an alternative embodiment of a repair nozzle according to the invention with sealing elements

1 shows a perspective view of a repair nozzle according to the invention 100 used for dispensing automotive viscous materials, such as adhesives, sealants, and / or switching and / or vibration damping materials, from containers containing them, not shown, by means of an associated dispensing gun, not shown. The repair nozzle 100 has a proximal Produktzuführseite 101 on, with the repair nozzle 100 can be releasably attached to a container and a distal product discharge side 102 for dispensing the material onto a substrate. At the proximal product feed side 101 a product supply port is provided on the one substantially around an axis of rotation 106 rotationally symmetrical product channel connects, which connects the material to be dispensed between the proximal Produktzuführseite 101 and the distal product discharge side 102 represents. The product channel is of a slightly tapered in the distal direction sleeve-shaped shell region 104 the repair nozzle 100 enclosed. To the proximal product feed side 101 is a radially outward with respect to the axis of rotation 106 protruding collar 107 provided, a support of the repair nozzle 100 on a container allows. Especially with a force on the repair nozzle 100 The repair nozzle is supported by the material dispenser 100 with the collar 107 on the mounted container. The collar 107 thus serves the power transmission and prevents by the provision of a support possibility a possible destruction of the repair nozzle 100 during the material issue. On the collar 107 is formed in the proximal direction extending, not visible in this view sealing lip ring formed as a sealing element. The jacket area 104 has a threaded sleeve on the proximal side 113 on. The threaded sleeve 113 encloses a concealed internal thread for fixing the repair nozzle 100 on a container. Around the circumference of the threaded sleeve 113 are projecting and extending in the axial direction mounting aids 110 intended. The mounting aids 110 Provide a good attack opportunity for the user when attaching the repair nozzle 100 over the internal thread with a container. In particular for reinforcement and stabilization of the repair nozzle 100 and the internal thread are on the shell area 104 several protruding ribs 111 which is attached to some of the assembly aids 110 connect and on the outer surface of the jacket area 104 in the axial direction with respect to the axis of rotation 106 run. Especially with a force on the repair nozzle 100 in the material issue, the ribs 111 by the stiffening effect a destruction of the repair nozzle 100 and the thread 114 prevent. At its distal side, the mantle area 104 a leadership advantage 112 on. This stands from the jacket area 104 and extends axially with respect to the axis of rotation 106 , The leadership advantage 112 in particular, provides a guiding possibility of the repair nozzle 100 along an edge when dispensing the material ready and facilitates the precise dispensing of material.

The output of the material via a slot-shaped mouth opening 103 , which on an end cap 108 at the distal product discharge side 102 is provided. The end cap 108 is in the distal direction of the repair nozzle 100 arched and the slot-shaped mouth opening 103 extends over the camber of the domed end cap 108 , In the present embodiment, the axis of rotation runs 106 also through the slot-shaped mouth opening 103 , With the slot-shaped mouth opening 103 Material beads can be issued that have a low application height compared to the application width on the substrate. This has great advantages, in particular in the case of bonding of components in the motor vehicle sector, since the largest possible area of the substrate should be provided with the material to be dispensed in order, for example, to achieve a sufficient adhesive and / or sealing effect, the thickness of the material being kept as low as possible should. By using the curved end cap 108 and the course of the slot-shaped mouth opening 103 over the camber of the end cap 108 In addition, the issue of a wider bead of material can be ensured because the material to be dispensed to the lateral areas of the slot-shaped mouth opening 103 not only in the axial direction with respect to the rotation axis 106 but also partially radially outward with respect to the axis of rotation 106 can be issued.

2 shows a side view of the repair nozzle 100 out 1 , At the proximal product feed side 101 is the as a threaded sleeve 113 formed area of the shell area 104 to a greater extent than the rest of the jacket area 104 educated. The threaded sleeve 113 has the above mounting aids 110 on. To an assembly aid 110 is a reinforcing rib 111 formed, which axially in the distal direction on the jacket area 104 extends. Another reinforcement rib 111 on the other side of the repair nozzle 100 provided and not visible in the view shown. At the proximal side of the threaded sleeve 113 is the collar 107 formed. The proximal end of the repair nozzle 100 at the proximal product feed side 101 forms a protruding sealing lip ring 109 , In addition, at the distal product output side 102 the leadership advantage 112 to recognize which of the cladding region 104 protrudes and partially in the distal direction in the curved end cap 108 protrudes.

3 shows a sectional side view AA of the repair nozzle 2 , The repair nozzle 100 has an at least partially around the axis of rotation 106 rotationally symmetrical product channel 105 on. The product channel 105 provides a connection for the material to be dispensed between the proximal product delivery side 101 and the distal product discharge side 102 dar. The product channel 105 thus connects the product feed opening 116 with the slot-shaped mouth opening 103 at the arched end cap 108 , The product channel 105 tapers from the proximal product feed side 101 towards the distal product discharge side 102 to the flow rate of the material within the product channel 105 to increase and / or to a pressure drop of the material due to the friction on the inner walls of the product channel 105 compensate. The product channel 105 is from the sleeve-shaped shell region 104 the repair nozzle 100 enclosed. The jacket area 104 has the reinforcing ribs 111 on and is at the side of the proximal product feed side 101 with an internal thread 114 provided with the repair nozzle 100 can be attached or mounted on a container with a corresponding external thread. At the internal thread 114 it is a precision thread, which is designed in such a way to the size of the corresponding external thread of a container, that over a sealing area 115 a sealing function is achieved within the thread. The attachment between the repair nozzle 100 and a container is by the precise design so self-sealing, by the internal thread 114 the repair nozzle 100 is designed such that the threads in the assembly of the repair nozzle 100 with a container close to the flanks of the corresponding thread of the container. The external threads of the used for use containers are generally standardized and have a fixed size, so that by the precise formation of the threads of the internal thread 114 and a precise adaptation to the corresponding thread of the container, in particular with the smallest possible tolerances, a sealing function can be achieved even within the thread. The internal thread 114 the repair nozzle thus provides with the sealing area 115 a first sealing element of the repair nozzle 100 ready. Unintentional or erroneous discharge of material to be dispensed can be prevented and, in addition, penetration of material into the thread can be avoided, which is a solution to the attachment of the repair nozzle 100 on the container would complicate.

In the design of the internal thread 114 as the first sealing element increase the not shown in this view assembly aids and / or reinforcing ribs 111 the sealing function by the stiffening additionally. Even with great force kung and / or high pressure, there is almost no deformation of the internal thread 114 , allowing a possibility of sealing between repair nozzle 100 and container can be ensured in the assembled state. Another advantage of the assembly aids and / or reinforcing ribs 111 it is easier to fix the repair nozzle 100 on the container. The mounting aids and / or reinforcing ribs 111 Provide a good attack opportunity for the user to attach the repair nozzle 100 , For example, when screwing the corresponding external thread of a container in the internal thread 114 the repair nozzle 100 ,

Next is in the area of the proximal Produktzuführseite 101 the sealing lip ring 109 provided as another sealing element. This encloses annularly the product feed opening 116 and extends in the proximal direction. Through the proximal extension of the sealing lip ring is 109 at a fixing of the repair nozzle 100 on a container in the direction of the container. The extent of the sealing lip ring 109 is designed such that this in the attachment of the repair nozzle 100 comes into contact with the container and so a seal between repair nozzle 100 and container effected. Of course, it is conceivable that the repair nozzle 100 having only one of the sealing elements described.

4 shows a detail view B of the sectional side view of the repair nozzle 100 out 3 , The Dichlippenring 109 As can be seen in the sectional view, a right-angled triangle with two equal-sized catheters can form, the tip of the right angle pointing in the proximal direction. The sealing lip ring 109 is at the collar 107 formed. Nevertheless, the sealing lip ring 109 be a separate component and / or be connected to another part of the repair nozzle. It is also possible, the sealing lip ring 109 made of a different material than the repair nozzle to produce, for example, to achieve an improved sealing effect. The sealing lip ring 109 encloses the product feed opening 116 annular. The product feed opening 116 limiting border area from the abutting outer surface of the collar 107 with the inner wall of the jacket area 104 is gefast in the present embodiment. This chamfered formation of the product supply port 116 Limiting area at the proximal end of the repair nozzle allows easy installation of the repair nozzle with a container. The bevel is in the area of the product feed opening 116 a funnel shape open in the proximal direction to allow introduction of the container into the product delivery port 116 to facilitate.

This in 5 illustrated repair system for adjustment and / or restoration of structures in the automotive sector consists of the in 1 shown repair nozzle 100 , an order or caulking gun 300 and a material to be dispensed 315 , such as a container containing adhesive and / or sealant 313 , In the present case comes as a container 313 a cartridge is used. The cartridge has a substantially cylindrical body, wherein on one side a movable piston for squeezing out of the material contained in the cartridge is provided and on the opposite side a base with an outlet opening for dispensing the material. The outlet opening thereby provides a hollow cylindrical attachment which is arranged axially to the cylindrical body of the cartridge, but has a smaller diameter. The attachment is provided with an external thread with an internal thread of the repair nozzle 100 can be engaged.

The caulking gun 300 has a handle 301 on, the one operating and leadership possibility of the caulking gun 300 for the user. This includes the handle 301 a grip area 306 which may be anti-slip or ergonomic in nature to provide the user with a secure grip when working with the system. The handle 301 is with a carrier area 304 equipped on the one receiving unit 303 with the handle 301 connected is. The recording unit 303 has a hollow cylindrical shape and serves to accommodate the material to be dispensed 315 filled container 313 , The product issue takes place at a delivery end 310 the recording unit 303 , This is the handle 301 a metering device 302 provided by means of which the user the output of the in the container 313 contained material 315 can regulate. In the present embodiment, it is a pneumatically acting cartridge gun 300 , where the output of the material 315 about the use of compressed air is made possible. This is the handle 301 a compressed air connection 307 intended. To this compressed air connection 307 The user can connect a print medium, such as a compressor. To regulate the pressure is on the handle 301 a pressure regulator 308 appropriate. By means of a handle 301 provided pressure gauge 309 the user can view the on the cartridge gun 300 adjacent and over the pressure regulator 308 Read off the set pressure. To regulate the pressure to apply the material to be dispensed 315 can the dosing unit 302 via an operating lever 305 which are operated by the handle 301 is attached and in the direction of the handle 301 can be pivoted. About the degree of pivoting of the operating lever 305 and the set air pressure at the pressure regulator 308 may be the output of the container 313 located material 315 be regulated. In the recording unit 303 is for the output of the material 315 a propelling element not shown provided within the receiving unit 303 can be moved. By applying pressure to the driving element selbiges is moved and presses in the receiving unit 303 arranged container 313 with the material to be dispensed 315 in the direction of the end of dispensing 310 the recording unit 303 , The recording unit 303 indicates at the end of delivery 310 a cap 311 on. This cap 311 is in the present embodiment via a screw with the cylindrical receiving unit 303 connected and has one with the hollow cylindrical shape of the receiving unit 303 Concentric aligned opening 312 on. About this opening 312 can the material 315 from the in the receiving unit 303 located container 313 be issued.

To provide the system for taking up the work becomes the repair nozzle 100 with the container 313 connected. For this purpose, the container 313 an external thread 314 on, which with the corresponding internal thread of the repair nozzle 100 can be engaged. To start work with system the container becomes 313 in the cavity of the receiving unit 313 inserted so that the repair nozzle 100 from the receiving unit 303 protrudes. Following is the cap 311 over the repair nozzle 100 pushed and over the above-described screw with the receiving unit 303 connected. The repair nozzle 100 protrudes in the installed state with through the opening 311 from the receiving unit 313 out. By applying pressure to the propulsion element, not shown, for dispensing the material 315 becomes the container 313 in the direction of the delivery end 310 pressed and supported on the cap 311 from. The acting pressure does not move the container due to the support 313 together with the repair nozzle 100 but moves the propelling element within the container 313 so that the material to be dispensed 315 from the container 313 is squeezed into the product channel of the repair nozzle 100 and finally over the slot-shaped mouth opening 103 can be issued.

6 shows a detailed view C of the repair system 5 , The repair nozzle 100 is on the material to be dispensed 315 containing container 313 assembled. This is the internal thread 114 the repair nozzle 100 with a corresponding external thread 314 the container has been engaged. When assembled, the sealing lip ring is adjacent 109 the repair nozzle 100 on a forehead area 316 of the container 313 at. In the present embodiment, a rotation of the two threaded portions was carried out 114 . 314 to each other such that the sealing lip ring 109 partially in the forehead area 316 of the container 313 is pressed in and / or cuts to a secure seal, even with production-related surface inaccuracies on the forehead area 316 to be able to guarantee. Nevertheless, the sealing lip ring 109 For example, be flexible and by screwing on the external thread 314 the forehead area 316 adapt the container, so that for example by means of a deformation of the sealing lip ring 109 a sealing function without cutting into the forehead area 316 arises. In the present embodiment, a seal of the repair nozzle 100 to the container 313 over two sealing elements. On the one hand about the threaded areas 114 . 314 by providing a high-precision internal thread 114 the repair nozzle, creating a sealing area 115 on the other hand on the above sealing lip ring 109 , which provides a sealing possibility at the forehead area 316 the cartouche 313 allows.

7 shows an alternative embodiment of a repair nozzle 200 with a proximal product feed side 201 and a distal product dispensing side 202 as well as with a product channel 205 , The product channel 205 connects a product feed opening 216 at the proximal product feed side 201 with a slot-shaped mouth opening 203 at the distal product discharge side 202 , To the product channel 205 is in the proximal area of the repair nozzle 200 essentially rotationally symmetrical about an axis of rotation 206 designed and is towards the distal product output side 202 from a trapezoidal coat area 204 enclosed, the slit-shaped mouth opening 203 having. The trapezoidal coat area 204 is designed such that a base 208 at the distal product discharge side 202 is arranged. The slot-shaped mouth opening 203 extends over the base 208 of the trapezoidal shell region 204 , Further, at the proximal product feed side 201 a radially outward with respect to the axis of rotation 206 protruding collar 207 provided for supporting the repair nozzle 200 serves on a container. The trapezoidal coat area 204 has several parallel to the base on the surface 208 arranged separation aids 214 on. These separation aids 214 represent marks where the user parts the trapezoidal shell area 204 can separate. Due to the trapezoidal shape of the jacket area 204 is a separation of a part on the distal product output side 202 with a reduction of the base 208 associated. Accordingly, by separating a part of the trapezoidal cladding region 204 by downsizing the base 208 also the slit-shaped mouth opening 203 that are about the base 208 he stretches, downsizes. The user can in this way by separating parts of the trapezoidal shell region 204 the size of the slit-shaped mouth opening 203 vary to adjust this to the dispensed material or the size of the desired bead of material.

The jacket area 204 has reinforcing ribs, not shown, and is on the side of the proximal Produktzuführseite 201 with an internal thread 211 provided with the repair nozzle 200 can be mounted on a container with a corresponding external thread. At the internal thread 211 it is a precision thread described above which has a sealing area 212 provides a first sealing element. Wei ter is in the area of the proximal Produktzuführseite 201 a sealing lip ring 209 provided as another sealing element. This encloses annularly the product feed opening 216 and extends in the proximal direction. Through the proximal extension of the sealing lip ring is 209 at a fixing of the repair nozzle 200 on a container in the direction of the container. The extent of the sealing lip ring 209 is designed such that this in the attachment of the repair nozzle 200 comes into contact with the container and so a seal between repair nozzle 200 and container effected. Of course, it is conceivable that the repair nozzle 200 having only one of the sealing elements described.

QUOTES INCLUDE IN THE DESCRIPTION

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Cited patent literature

• - EP 2006/004600 [0008]

Claims (14)

Repair nozzle ( 100 . 200 ) for dispensing automotive viscous materials ( 315 ) from a container containing these ( 313 ) by means of an associated dispensing gun ( 300 ) with a proximal product feed side ( 101 . 201 ), the means ( 114 . 211 ) for releasably securing the repair nozzle ( 100 . 200 ) on the container ( 313 ) and at least one sealing element ( 109 . 115 . 209 . 212 ) for providing a sealing possibility between the repair nozzle ( 100 . 200 ) and the container ( 313 ) having. Repair nozzle ( 100 . 200 ) according to claim 1, characterized in that a distal product output side ( 102 . 202 ) is provided which a slot-shaped mouth opening ( 103 . 203 ) to dispense a bead of material. Repair nozzle ( 100 . 200 ) according to one of claims 1 or 2, characterized in that at least one sealing element ( 109 . 209 ) on the proximal product feed side ( 101 . 201 ) at a product feed opening ( 116 . 216 ) and in the proximal direction extending sealing lip ring ( 109 . 209 ) is configured. Repair nozzle ( 100 . 200 ) according to one of the preceding claims, characterized in that on a jacket region ( 104 . 204 ) at least in the area of the fastening means ( 114 211 ) projecting ribs ( 110 . 111 ) for reinforcing the fastening means ( 114 . 211 ) and / or to facilitate attachment of the repair nozzle ( 100 . 200 ) on the container ( 313 ) are provided. Repair nozzle ( 100 . 200 ) according to one of the preceding claims, characterized in that on the jacket region ( 104 . 204 ) a leadership advantage ( 112 ) is formed in order to provide a possibility of guiding the repair nozzle ( 100 . 200 ) along an edge. Repair nozzle ( 100 . 200 ) according to one of the preceding claims, characterized in that at the proximal Produktzuführseite ( 101 . 201 ) a collar ( 107 . 207 ) for supporting the repair nozzle ( 100 . 200 ) on the container ( 313 ) is formed. Repair nozzle ( 100 . 200 ) according to one of the preceding claims, characterized in that the product feed opening ( 116 . 216 ) limiting area is chamfered to a simple installation of the repair nozzle ( 100 . 200 ) with a container ( 313 ). Repair nozzle ( 100 ) according to one of the preceding claims, characterized in that a product channel ( 105 ) is provided to the vikose material ( 315 ) from the product feed side ( 101 ) to the product issue page ( 102 ) and that one of the slot-shaped mouth opening ( 103 ) end cap ( 108 ) to the product issue page ( 102 ) is formed in the distal direction of the repair nozzle ( 100 ) is arched. Repair nozzle ( 100 ) according to claim 8, characterized in that the slot-shaped mouth opening ( 103 ) over a dome of the domed end cap ( 108 ). Repair nozzle ( 200 ) according to one of claims 1 to 7, characterized in that a product channel ( 205 ) is provided to the viscous material ( 315 ) from the product feed side ( 201 ) to the product issue page ( 202 ) and that the slot-shaped mouth opening ( 203 ) having jacket region ( 204 ) which extends trapezoidally in the distal direction, wherein the base ( 208 ) of the trapezoidal shell region ( 204 ) on the distal product output side ( 202 ) is arranged. Repair nozzle ( 100 . 200 ) according to any preceding claim, characterized in that the product channel ( 105 . 205 ) at least partially rotationally symmetrical about an axis of rotation ( 106 . 206 ) is designed. Repair nozzle ( 100 . 200 ) according to claim 11, characterized in that the slot-shaped mouth opening ( 103 . 203 ) over the axis of rotation ( 106 . 206 ) of the product channel ( 105 . 205 ). Repair system for restoring structures in the motor vehicle sector, consisting of a repair nozzle ( 100 . 200 ), an issue pistol ( 300 ) and a viscous material ( 315 ) container ( 313 ), the repair nozzle ( 100 . 200 ) a proximal product feed side ( 101 . 201 ) and means ( 114 . 211 ) for releasably securing the repair nozzle ( 100 . 200 ) on the container ( 313 ) and at least one sealing element ( 109 . 115 . 209 . 212 ) for providing a sealing possibility between the repair nozzle ( 100 . 200 ) and the container ( 313 ) having. Repair system according to claim 13, characterized in that a distal product output side ( 102 . 202 ) is provided which a slot-shaped mouth opening ( 103 . 203 ) to dispense a bead of material.