EP0414995A1 - Brûleur pour l'usinage thermique des pièces - Google Patents

Brûleur pour l'usinage thermique des pièces Download PDF

Info

Publication number
EP0414995A1
EP0414995A1 EP90107174A EP90107174A EP0414995A1 EP 0414995 A1 EP0414995 A1 EP 0414995A1 EP 90107174 A EP90107174 A EP 90107174A EP 90107174 A EP90107174 A EP 90107174A EP 0414995 A1 EP0414995 A1 EP 0414995A1
Authority
EP
European Patent Office
Prior art keywords
insert
burner
handle part
locking
push button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90107174A
Other languages
German (de)
English (en)
Other versions
EP0414995B1 (fr
Inventor
Adolf Rauschenberger
Roland Diehm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
J Lorch Ges & Co KG
Original Assignee
J Lorch Ges & Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by J Lorch Ges & Co KG filed Critical J Lorch Ges & Co KG
Priority to AT90107174T priority Critical patent/ATE95906T1/de
Publication of EP0414995A1 publication Critical patent/EP0414995A1/fr
Application granted granted Critical
Publication of EP0414995B1 publication Critical patent/EP0414995B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating

Definitions

  • the invention relates to a burner for the thermal processing of workpieces, with at least one gas line running in a handle part and having at least one valve, a gas connection piece attached to one end of the handle part and a burner insert which is exchangeably fastened in a plug-in receptacle at the opposite end of the handle part and which is by means of a provided in the handle part integrated locking device is axially immovable lockable.
  • Burners of the above type are often used as welding or soldering torches.
  • the different types of burners are fixed in a predetermined working position in the receiving channel of the burner handle. Securing against twisting and against the burner insert falling out is usually accomplished by means of union nuts, for the tightening and loosening of which special keys or other tools are often required.
  • Another known attachment option is the so-called bayonet attachment.
  • This type of attachment does not require nuts to fix the burner insert, but it must be inserted into the burner handle in a certain preferred rotation position and locked with this predetermined, non-changeable orientation of the burner insert head.
  • a disadvantage of the types of insert attachment described above is that the burner insert cannot be easily rotated out of the predetermined working position during work for optimal alignment of the burner insert. For safety reasons, the fuel gas supply must be interrupted for this purpose, the burner insert fastening partially loosened with the second hand and, if possible, the burner insert in the handle part rotated and fixed again.
  • the locking element is designed in the form of a coupling sleeve which can be axially pushed back against the restoring action of a spring on a cylindrical valve body, that the burner insert inserted in an accommodating chamber of the valve body and axially immovably secured can be removed and at the same time the fuel gas is supplied by synchronous displacement of an actuating sleeve also arranged around the valve body is interrupted.
  • the sleeve must first be pushed back in a disadvantageous manner with the second hand, and after locking, the sleeve for gas release must also be moved.
  • the sleeve can also be operated for gas release or shut-off without the burner insert being inserted, which represents a safety problem. Furthermore, there is no safeguard against rotation of the burner insert in the burner handle, so that when using, for example, angular and in particular top-heavy burner inserts, these are automatically in the burner handle, for example when working overhead in poorly accessible places or by bumping against the machining workpiece from the specified working position can twist, with an adverse effect on the processing quality as well as an impairment of the safety of the operator. The same disadvantages are present in the welding and cutting set shown in DE-OS 24 52 790.
  • the object of the present invention is, while avoiding the disadvantages described, to improve a burner of the type mentioned at the outset in such a way that a rapid and secure pick-up and take-out of the burner insert in the burner handle can be effected, in which the burner insert is secured against lateral forces causing twisting , and in which one-handed and safe operation of the burner, in particular the locking device, should also be made possible during operation, in order thereby to enable safe and convenient working even at difficult to access processing points.
  • this object is achieved in that the burner insert can be locked by simply pushing in the plug receptacle radially secured irribar and gelichzeitiger Gaszbowkegabe by means of the locking device in a rotationally secured working position in that the burner insert, if necessary, in the handle portion without interrupting the gas supply to change its working position is rotatable in the plug-in receptacle after at least partial actuation of the locking device and then secured against rotation again by releasing the locking device, and that the burner insert is unlocked after the locking device has been fully actuated and can be pulled out of the handle part if the gas supply is interrupted at the same time.
  • the locking device is designed in the form of a snap connection between the handle part and the burner insert, so that the latter is fastened in the handle part by simply plugging it into the plug receptacle when it is latched in, both axially immovable and secured against rotation. At the same time, this enables the gas supply to be released, which is only interrupted when the burner insert is removed from the handle part. This ensures an automatic release or interruption of the gas supply when the burner insert is inserted or triggered, which means that a separate manual interruption of the fuel gas supply can be eliminated and the burner inserts can be changed quickly and safely.
  • the burner insert can be rotated in the handle, even during operation without interrupting the gas supply, so that even hard-to-reach machining points can be reached without having to change the position of the handle part in the hand of the processor.
  • the locking device is actuated here with the hand holding the torch handle, so that the other hand is used for other necessary handles, e.g. holding a screen, solder wire u. The like remains free and this need not be used for operation.
  • a locking housing can be provided within the handle part, which is of three-part design, approximately T-shaped, whereby a first partial area is located closest and coaxial to the plug-in receptacle, forms an insert channel for receiving a cylindrical plug-in connection of the burner insert and has a part of the locking device, a second partial area adjoins the first partial area in axial extension and a further part of the locking device with integrated shut-off valve and a third section has a main valve with an associated rotatable regulating device.
  • the combination of three component groups in a common housing provides an extremely compact embodiment of the burner.
  • the locking device consists of two spatially separate sub-areas which functionally interact and are therefore advantageously accommodated in one housing part.
  • the part of the locking device located in the second partial area as a check valve
  • the individual parts required for the construction of the locking device and the check valve can be considerably reduced. Furthermore, there is an extremely space-saving arrangement of the two functional areas. Because the main valve is also provided in the locking housing, the overall volume of the burner handle part is also reduced.
  • the locking device can have a push button which in a transverse to the insert channel cylindrical receiving bore of the locking housing is slidably guided and can be brought into engagement with the plug connection of the burner insert, and that the push button is held in a locking position by a push button spring and against the restoring action of the push button spring in an insertion, twisting and a release position can be brought for the burner insert.
  • the push button for actuating the locking device one-hand operation of the burner is guaranteed at all times.
  • the push button is advantageously arranged in the handle part so that it can be reached even when the actuating lever for gas release is actuated at the same time.
  • the push button spring causes the push button to remain in its locking position at all times when it is not actuated, as a result of which the burner insert is axially secured and held in the grip part in a rotationally secure manner.
  • the push button has to be actuated, whereby the burner insert can either be completely detached from the handle or partially rotated in it.
  • the push button can have a receiving channel running transversely to its longitudinal direction, that the push button is secured axially as well as against rotation but is displaceable in the Receiving hole is received, and that the push button is arranged in the locking housing so that the receiving channel coaxially forms a portion of the insert channel and the plug connection can be received therein.
  • This enables direct engagement of the push button via its receiving channel with the plug connection.
  • this can have a larger diameter in a partial area, so that a securing flange of the push button can be axially displaceably received therein.
  • the push-button spring is then expediently arranged between the cover plate and push-button flange which terminate the receiving bore, a receiving shoulder of the receiving bore, to which the securing flange comes to rest when the plug connection is not inserted, prevents the push-button from falling out.
  • An anti-rotation measure provides that the cylindrical push button can have a guide groove, into which a locking pin protrudes, which is inserted in the locking housing, whereby there is a limited axial displacement of the push button in the receiving bore against the push button spring action and the push button against axial rotation is secured. The latter securing measure ensures that the coaxiality of the receiving channel and the insert channel is maintained even when the burner insert is not used.
  • the receiving channel of the Push button oval and have a radially inward locking projection with locking shoulder and insertion slope, and that the cross section of the receiving channel is narrowed on one side so that it corresponds approximately to the cross section of the insert channel.
  • the plug connection can have a circumferentially extending, essentially rectangular locking groove with a retaining shoulder, and furthermore have a sliding bevel along the circumference.
  • the sliding bevel and the insertion bevel can be brought into engagement and slide on one another, so that the push button against the action of the push button spring can be moved into the insertion position for the burner insert; when the burner insert is fully inserted, the locking projection protrudes and engages in the locking groove and thus brings about an axial securing of the burner insert in the grip part, the locking position of the push button being secured by the push button spring.
  • a special embodiment provides that the locking projection has a radial toothing running in the circumferential direction and the plug-in connection in the bottom of the locking groove can have an axial partial area with peripheral knurling, and that the toothing can be brought into engagement in the knurling area closest to this. This provides increased security against rotation for top-heavy burner inserts in the handle part.
  • the locking device can have an insert seal which lies in the second partial area of the lock housing and surrounds the insert channel, to which is connected axially and at the end a cylindrical blocking valve piston which closes the insert channel and can be moved axially against a restoring force, both insert seal and Check valve pistons form parts of the check valve.
  • the check valve piston can be accommodated in an inner cylindrical recess of a check valve screw arranged in the axial extension of the insert channel and touching the insert seal on the end face, which has radial gas supply bores , which run through the check valve screw wall and lead into the recess, a check valve spring being arranged in the recess, which bears against a rear wall of the check valve piston on the recess bottom and the axial displacement path of the check valve piston on the end face through the insert seal and rearward through a stop in the recess is limited.
  • the limitation of the displacement path of the check valve piston ensures that only suitable plug connections of the various burner inserts are introduced and secured in the handle part can be, whereby this provides further operational safety of the burner.
  • the locking device and the valve control are advantageously designed so that when the burner insert is inserted and the pushbutton is in the locking position, the check valve spring presses / holds both the check valve piston on the end face against the plug connection and the retaining shoulder of the plug connection axially against the locking shoulder of the push button, and that Push button spring holds the locking projection of the push button in the locking groove radially pressed against the plug connection, the shut-off valve being in the open position and fuel gas being able to flow into a gas channel of the plug connection.
  • the insert seal also receiving the plug connection in the receiving channel in a sealing manner. It is also advantageous that when the burner insert is inserted and the pushbutton is in the rotated position, ie in the half-pressed position, the check valve spring axially engages the check valve piston at the front end against the plug connection and the retaining shoulder of the plug connection against the locking shoulder of the press button, the check valve still being open Position and fuel gas can continue to enter the gas duct, whereby the burner insert can be securely rotated in the receiving channel even during operation. In the release position of the push button, i.e.
  • the burner insert in which case the check valve spring presses the check valve piston on the face side against the insert seal and thus the check valve is in the closed position and no more fuel gas can get into the intake channel.
  • an integrated ignition device in particular a piezo igniter
  • a piezo igniter can be provided in the handle part. This arrangement eliminates the need to accommodate the ignition device separately from the burner, and a particularly compact handle part design is achieved with possible one-hand operation.
  • a further advantageous embodiment of the burner provides that a torque valve upstream of the main valve can be provided in the handle part to interrupt or release the fuel gas supply. This provides separate regulation or adjustment of the fuel gas supply quantity by means of the main valve, with the fuel valve being released or shut off separately by means of the momentary valve.
  • a further embodiment of the invention provides that an actuating lever can be provided on the handle part, through which both the momentary valve and the piezoelectric igniter can be actuated, and that the actuating lever is attached and arranged on the handle part in such a way that the burner can be operated with one hand by the actuating lever and the locking device is given.
  • the actuating lever can be pivoted from a (locked) initial position into a release position, only the momentary valve being actuated and the fuel gas supply open, and further pivoted into an ignition position in which the piezo igniter can be triggered and the momentary valve remains in the open position.
  • a lever locking device can be provided which can be operated with one hand, by means of which the torque valve can be locked in the open position.
  • the burner can be made considerably easier to handle since there is no need to constantly depress the actuating lever in order to maintain the supply of fuel gas.
  • the lever locking device can consist of a snap-in mechanism arranged in the handle part with a push pin and a receiving opening in the actuating lever for receiving the push pin. and that when the lever locking device is engaged, the momentary valve for the fuel gas supply remains in the open state.
  • the torque valve can be locked in a user-friendly manner in the open position without the aid of the second hand, in particular if work is to be carried out over long periods.
  • the locking position of the actuating lever can be released again by simply actuating the latching mechanism, as a result of which an interruption in the gas supply takes place.
  • the handle part can have a contact device, in particular a contact ring, which is connected to the piezo igniter via an ignition line
  • the burner insert can also have a contactor, in particular a contact pin, which an ignition electron is conductively connected to an ignition wheel running in the burner insert, and that, furthermore, when the burner insert is inserted, the contact pin is conductively connected to the contact ring in the grip part.
  • the contact ring is received in an annular manner in an insulated manner in a contact holder which is arranged concentrically with the plug-in receptacle of the handle part is, and that to ensure contact between the contact ring and contact pin the latter can be resilient.
  • the burner has a handle part 1 (FIGS. 1, 3, 4) and a burner insert 2 (FIG. 2).
  • the burner insert 2 can be designed differently depending on the intended use, but these have a number of common features, as will be explained later.
  • the grip part 1 is encased by two grip shell halves 3, the upper half having been removed from the grip part 1 shown in FIG. 1.
  • the grip halves 3 are connected to one another via screw connections 4 such that both halves are held together in a form-fitting manner.
  • the handle part 1 is designed ergonomically so that it is convenient in one human hand.
  • One (right) end of the handle part 1 has a rotatable gas connection piece 5, which can be connected to a fuel gas connection line, not shown.
  • the connecting piece 5 is pushed onto a connecting sleeve 6 in a sealing manner, which in turn opens into a so-called torque valve 7, which is connected via a gas line 8 to the main valve 9 of the burner.
  • the momentary valve 7 is designed as a 2-way valve and is controlled by means of a momentary valve pin 10, the fuel gas supply being released by the momentary valve 7 when the momentary valve pin 10 is pushed into the momentary valve housing 11 against the action of spring force.
  • a fine-thread screw with a closing cone is provided as the regulating device 12 for the main valve 9, so that the main valve 9 can be continuously adjusted for regulating the amount of fuel gas.
  • the handle part 1 has at its other (left) end a plug receptacle 13, in which the different types of burner inserts 2 can be used interchangeably.
  • a cylindrical insert channel 14 which serves to receive a plug connection 15 provided on the burner insert 2.
  • the cross sections of the insert channel 14 and the plug connection 15 have the same geometric dimensions, so that there is a simple sliding in of both parts.
  • the plug connector 15 has one in it coaxial gas channel 16, to which an acceleration nozzle 17 is connected in axial extension. (Fig. 2).
  • the burner insert 2 also has a mixing tube 18, to which a burner head 19 is screwed at one end and the plug connection 15 is screwed into the other end.
  • a constriction bushing 20 is also running inside the mixing tube 18 as an acceleration section in extension to the acceleration nozzle 17, a number of air intake bores 21 breaking through the wall of the mixing tube between the two.
  • the mixing tube 18 can have any curvature which is adapted to the operating conditions and can also have different diameters, with an expansion of the mixing tube end for certain types of burners also being possible. More on the mode of operation of the individual burner insert components later.
  • a locking device 22 is provided integrated in the handle part 1, by means of which the burner insert 2 can be radially secured in the handle part 1, rotatably and axially immovably.
  • the locking device 22 is divided into two functional areas and housed in a specially designed locking housing 23.
  • the locking housing 23 is made up of three parts. It consists of a substantially cylindrical first portion 23 ', which is arranged closest to and coaxial with the plug receptacle 13 and the already mentioned insert channel 14 for receiving the Has cylindrical plug connector 15.
  • the second partial region 23 ⁇ which is axially extended for this purpose, has a check valve 24 in its inner cylindrical region.
  • the locking housing 23 has the third section 23 Maschinenст, which is arranged so that the locking housing describes an approximately T-shaped structure.
  • the third section 23 ′′′ there is the main valve 9 with its associated regulating device 12.
  • an adjusting head 12 is provided, which is arranged at the upper end of the handle part 1 so that it can be actuated easily.
  • Other arrangements of the main valve 9 in relation to the shut-off valve 24 are also conceivable, but the embodiment shown here has the essential advantage of representing a very space-saving form, the main valve 9 and the shut-off valve 24 being accommodated in the same housing 23. Both valves are connected to one another via a short channel 25.
  • the handle part 1 also has an ignition device in its interior, in particular a piezo igniter 26, which can be triggered in a known manner by a pressure pin 27.
  • An ignition line 28 running through the interior of the handle part 1 leads to a contact device which here forms an annular contact ring 29 and in an annular contact holder made of insulating material and concentric with the plug receptacle 13 recorded.
  • the burner insert 2 has an ignition wire 31 which runs in the mixing tube 18 and is connected to an ignition electrode 32.
  • the ignition electrode 32 is placed on the mixing tube 18 in a bump-like manner, but can also be provided in another geometric embodiment or position.
  • a contactor is provided, which is designed here in the form of a contact pin 33 which is resiliently received in the ignition electrode 32.
  • the arrangement of the ignition electrode 32 or the contact pin 33 on the burner insert 2 is selected such that when the plug connection 15 is inserted in the plug receptacle 13, the contact pin 33 is conductively connected to the contact ring 29, with contact securing being provided by the resilient design of the contact pin 33 is.
  • An actuation lever 34 is located in the lower part of the handle part 1 for actuating the piezo igniter 26 and the momentary valve 7 intended.
  • the handle part 1 has a recess 35 in its lower area, so that an engagement of the actuating lever 34 with the torque valve pin 10 and the pressure pin 27 of the piezo igniter 26 is possible.
  • the actuating lever 34 is pivotally attached to the handle part 1 by means of a connecting bolt 36 in the vicinity of the gas connecting piece 5.
  • the operating lever 34 extends approximately 2/3 along the length of the handle part 1 and has a more or less perpendicular locking arm 37 with a receiving opening 38 penetrating it; the locking arm 37 is movable up and down in the grip part 1.
  • the arrangement of the actuating lever 34 on the lower part of the handle part 1 enables the burner to be operated with one hand. Furthermore, the actuating lever 34 has an adjusting pin 39 which is arranged closest to the moment valve pin 10 and serves to determine the moment of actuation of the moment valve 7 depending on the pivoting position of the actuating lever 34.
  • the actuating lever 34 can be brought from a (locked) initial position into a first release position by pivoting, the momentary valve 7 releasing the fuel gas supply to the main valve 9 via the momentary valve pin 10 against spring action.
  • the lever locking device 40 consists of a locking mechanism 41 integrated in one of the grip shell halves 3 with the associated pressure pin 42.
  • the locking mechanism 41 works in the same manner as a locking device provided for ballpoint pens.
  • FIG. 7 shows a schematic cross section of the burner shown in FIG. 1, taken along the line VII-VII, which is used to explain the mode of operation and the Arrangement of the individual locking device parts of the locking device 22 is used.
  • the locking housing 23 has a receiving bore 45 which cuts the insert channel 14 at a right angle.
  • the cylindrical receiving bore 45 extends through the entire housing and has a likewise cylindrical enlarged area 45 ', which is closed by a cover plate 46.
  • a push button 47 is accommodated in the receiving bore 45 in a form-fitting manner and has the same geometric cross-sectional dimensions as the receiving bore 45. Referring to FIGS.
  • the cylindrical push button 47 has a receiving channel 48 which runs transversely to its longitudinal direction and which is of oval design and has a locking projection 49 pointing radially inwards.
  • This locking projection 49 is designed so that the cross section of the receiving channel 49 is narrowed on one side so that it approximately corresponds to the cross section of the insert channel 14.
  • the locking projection 48 has a forward-facing locking shoulder 50 and an insertion bevel 51 on the opposite side of the projection.
  • the push button 47 shown here also has a radial toothing 52 running on the locking projection 49, consisting of five to seven individual teeth . This toothing 52 is provided only in the event that particularly heavy burner inserts 2 are to be secured in the insert channel 14.
  • the push button 47 has in its rear longitudinal area a cylindrical disk-shaped securing flange 53, in the bottom of which a receiving recess 54 is provided.
  • a receiving recess 54 is provided.
  • the latter has a guide groove 55 which serves to prevent the cylindrical push button 47 from rotating in the receiving bore 45.
  • the shape of the push button 47 does not necessarily have to be that of a cylinder, but can, for example, also have a square cross section, as a result of which no anti-rotation measures need to be taken.
  • the push button 47 is accommodated in the receiving bore 45 so that the securing flange 53 comes to rest in the extended area 45 ', the push button 47 being axially displaceable between the receiving shoulder of the extended area 45' and the cover disk 46 closing the receiving bore is movable.
  • a locking pin 57 is inserted through the wall of the locking housing 23, which projects into the guide groove 55. (Fig. 4).
  • the push button 47 is held in a so-called locking position by a push button spring 56, which is arranged in the enlarged area 45, between the securing flange 53 and the cover plate 46, and can be brought into an inserted, twisted and released position against the force of this spring .
  • the push button 47 is in the grip half 3 attached access hole 58 actuated.
  • the arrangement of this part of the locking device 22 in the handle part 1 is selected so that it can be reached even when the actuating lever 34 is actuated at the same time.
  • the spring force of the push button spring 56 enables the push button to remain in its locking position at all times when it is not actuated.
  • the plug connection 15 of the burner insert 2 has in its front region a locking groove 59 which has an essentially rectangular cross section and an internal one Restraint shoulder 60 forms along the circumference of the plug connection 15.
  • a sliding bevel 61 upstream of the locking groove 59 is also provided, which runs along the circumference of the plug-in connection 15.
  • the locking groove 59 has a circumferential knurling 62 over an axial partial area, which is designed such that the toothing 52 of the push button 47 that may be provided can be engaged therein.
  • the second part of the locking device 22 is located in the second partial area 23 ⁇ of the locking housing 23.
  • Two of the locking device components also simultaneously form parts of the check valve 24, which leads to a reduction in the number of individual components.
  • a blocking valve screw 63 closing this channel, which has an inner cylindrical recess 64 and forms a front annular valve chamber region 24 'together with the inner cylindrical wall of the second partial region 23'.
  • this valve chamber area 24 ' ends between the main valve 9 and the check valve 24 channel 25.
  • several axially extending gas supply bores 65 are arranged so that a gas supply from the valve chamber area 24' is given in the recess 64.
  • the shut-off valve screw 63 At the end of the front area of the shut-off valve screw 63 there is an insert seal 66 radially surrounding the insert channel 14, which is arranged in an annular recess in the housing part 23eil.
  • an insert seal 66 radially surrounding the insert channel 14, which is arranged in an annular recess in the housing part 23eil.
  • the inner cylindrical recess 64 of the screw 63 there is also a cylindrical check valve piston 67 touching the inner wall of the recess 64, the displacement path of which is limited at the front by the insert seal 66 and at the rear by a stop in the recess 64.
  • the check valve piston can be moved against the force of a check valve spring 68 located in the recess 64 and touching the rear wall of the check valve piston 67 and the recess bottom.
  • the burner insert 2 would in itself be secured against being pulled out as long as the push button 47 is not actuated, since the corresponding locking shoulders of the push button 47 and the plug connection 15 prevent this.
  • the cylindrical front area engages with the insert seal 66, which is made of a suitable elastomeric material and guarantees a sealing and frictional engagement with the plug connection 15.
  • the check valve piston 67 is lifted against the force of the check valve spring 68, so that the check valve 24 is brought into an open position and a gas supply through the valve chamber area 24 'via the gas supply holes 65 in the gas channel 16 of the plug connection 15 is ensured.
  • the sealing effect of the insert seal 66 ensures that this is the only exit path for the fuel gas.
  • the burner insert 2 is thus held in the selected preferred position in the handle part 1 by means of the frictional force exerted by the insert seal 66 on the plug connection 15 and in that, in the locked position of the push button, the check valve spring 68 connects the check valve piston 67 to the plug connection 15 and the retaining shoulder 60 of the connector 15 axially pressed against the locking shoulder 50 and also by the fact that the push button spring 56 also holds the locking projection 49 of the push button 47 radially pressed against the connector 15.
  • the check valve 24 is in the open position.
  • the locking device 22 acts in the form of a snap connection, which makes it possible to insert the burner insert 2 by simply pushing it into the handle part 1 and thus simultaneously release the gas supply and the burner insert 2 in its angular position in FIG it has been plugged in to lock it.
  • the burner insert 2 can be inserted into the plug receptacle 13 at any time be rotated without a gas supply interruption taking place. If a toothing 52 is provided on the locking projection 49 of the push button 44, which engages in the knurled area 62 of the plug connection 15, the push button 47 must be moved back so far that the engagement of the toothing 52 is released and the burner insert 2 can be rotated.
  • the gas connection to the handle part 1 takes place via the gas connection piece 5, whereby the required gas pressure is directly applied to the momentary valve 7.
  • the momentary valve pin 10 is pressed in, so that a gas supply release is effected and the gas pressure is then applied to the main valve 9.
  • the regulating device 12 is opened, the gas pressure is present at the check valve 24.
  • the check valve piston 67 is lifted off the insert seal 66 so that the gas pressure is present at the gas channel 16 of the plug connection 15.
  • a regulation of the fuel gas flow is possible by means of the adjusting head 12 ', the gas supply being interrupted only when either the actuating lever 34 is returned to its starting position by releasing the actuating pressure or when the burner insert 2 is removed, the shut-off valve 24 is closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Gas Burners (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
EP90107174A 1989-07-08 1990-04-14 Brûleur pour l'usinage thermique des pièces Expired - Lifetime EP0414995B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90107174T ATE95906T1 (de) 1989-07-08 1990-04-14 Brenner zur thermischen bearbeitung von werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8908347U 1989-07-08
DE8908347U DE8908347U1 (de) 1989-07-08 1989-07-08 Brenner zur thermischen Bearbeitung von Werkstücken

Publications (2)

Publication Number Publication Date
EP0414995A1 true EP0414995A1 (fr) 1991-03-06
EP0414995B1 EP0414995B1 (fr) 1993-10-13

Family

ID=6840913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107174A Expired - Lifetime EP0414995B1 (fr) 1989-07-08 1990-04-14 Brûleur pour l'usinage thermique des pièces

Country Status (4)

Country Link
EP (1) EP0414995B1 (fr)
AT (1) ATE95906T1 (fr)
DE (2) DE8908347U1 (fr)
ES (1) ES2046573T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006424A3 (fr) * 1992-06-22 1994-08-23 Guilbert Express Sa Outil a main a dispositif d'allumage de gaz.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998009765A1 (fr) 1996-09-02 1998-03-12 Alexander Binzel Gmbh & Co. Kg Chalumeau coupeur ou soudeur a l'arc

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310110C2 (de) * 1973-03-01 1975-03-06 Messer Griesheim Gmbh, 6000 Frankfurt Schweiß- und/oder Schneidbrenner
DE2452790A1 (de) * 1974-11-07 1976-05-13 Elementa Spezialschweissmateri Schweiss- und schneidgarnitur
DE2811901A1 (de) * 1978-03-18 1979-03-22 Mueller Willi Autogenbrenner
DE2819073B1 (de) * 1978-04-29 1979-07-26 Messer Griesheim Gmbh Maschinenbrenner
DE3028731A1 (de) * 1980-07-29 1982-02-25 Metzger Bau GmbH, 7888 Rheinfelden Brennrohrhalter
US4756686A (en) * 1987-01-16 1988-07-12 Wingaersheek Div. Of Victor Equipment Company Torch handle with locking valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778208U (de) * 1958-09-17 1958-11-27 Perkeo Werk G M B H Griffstueck.
US4348172A (en) * 1980-07-28 1982-09-07 Miller Harry C Portable propane gas hand torch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310110C2 (de) * 1973-03-01 1975-03-06 Messer Griesheim Gmbh, 6000 Frankfurt Schweiß- und/oder Schneidbrenner
DE2452790A1 (de) * 1974-11-07 1976-05-13 Elementa Spezialschweissmateri Schweiss- und schneidgarnitur
DE2811901A1 (de) * 1978-03-18 1979-03-22 Mueller Willi Autogenbrenner
DE2819073B1 (de) * 1978-04-29 1979-07-26 Messer Griesheim Gmbh Maschinenbrenner
DE3028731A1 (de) * 1980-07-29 1982-02-25 Metzger Bau GmbH, 7888 Rheinfelden Brennrohrhalter
US4756686A (en) * 1987-01-16 1988-07-12 Wingaersheek Div. Of Victor Equipment Company Torch handle with locking valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006424A3 (fr) * 1992-06-22 1994-08-23 Guilbert Express Sa Outil a main a dispositif d'allumage de gaz.

Also Published As

Publication number Publication date
DE59003073D1 (de) 1993-11-18
EP0414995B1 (fr) 1993-10-13
ATE95906T1 (de) 1993-10-15
DE8908347U1 (de) 1989-08-31
ES2046573T3 (es) 1994-02-01

Similar Documents

Publication Publication Date Title
DE4407854B4 (de) Bohrfutter
DE3129552C2 (fr)
DE69326570T2 (de) Spannzange für eine Klinge
AT403089B (de) Piezoelektrischer mechanismus für gasanzünder
DE19637874C5 (de) Heckenschneider mit Motorantrieb
EP0003781B1 (fr) Torche de soudage pour le soudage à l'arc avec électrode consommable
DE4022668A1 (de) Elektrische handwerkzeugmaschine, insbesondere winkelschleifmaschine
DE2219658A1 (fr)
DE1563788C3 (de) Handbetätigtes Stellglied zur stufenlosen Drehzahlsteuerung eines Elektrowerkzeuges
EP1669040A1 (fr) Outil à main pour l'usage dentaire et prothétique de dents
DE3139880C2 (de) Zündeinrichtung
DE20003449U1 (de) Gasfeuerzeug
DE2216749B2 (de) Zahnärztliches Handstück zum Anschluss an einen Mikromotor
DE69428704T2 (de) Zündapparat und ein heizwerkzeug
DE2210668C3 (de) Gewindeschneidvorrichtung
EP0414995B1 (fr) Brûleur pour l'usinage thermique des pièces
EP1319456A1 (fr) Découpeur de câbles
DE2945432C1 (de) Sicherheitsbrenner zum Pulverflammspritzen
DE3500009A1 (de) Haushaltsgasanzuender
DE3402635A1 (de) Spannvorrichtung zum einspannen von werkzeugen
DE2124485A1 (de) Hahn für Schweißbrenner mit einem Hahngehäuse, einem Ventilsitz und einem Ventilkopf
EP0412198B1 (fr) Outil d'extrusion d'un matériau en cartouches
EP0215295A1 (fr) Accouplement pour l'assemblage détachable d'un manche de pièce à main dentaire avec une tête
DE10107979B4 (de) Setzgerät
DE19940970B4 (de) Vorrichtung zur Befestigung eines Handgriffes an einem Koch- oder Bratgefäß

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL

17P Request for examination filed

Effective date: 19910219

17Q First examination report despatched

Effective date: 19920320

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19931013

Ref country code: BE

Effective date: 19931013

REF Corresponds to:

Ref document number: 95906

Country of ref document: AT

Date of ref document: 19931015

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. ANTON AUSSERER

REF Corresponds to:

Ref document number: 59003073

Country of ref document: DE

Date of ref document: 19931118

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19931022

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2046573

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19980421

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980423

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990415

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000417

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20010430

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010503

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030324

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040414

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050414

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090403

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20100414