EP2264366A2 - Handgerät mit eingebautem Brenner und ausbaubarer piezoelektrischer Zündvorrichtung - Google Patents

Handgerät mit eingebautem Brenner und ausbaubarer piezoelektrischer Zündvorrichtung Download PDF

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Publication number
EP2264366A2
EP2264366A2 EP10163806A EP10163806A EP2264366A2 EP 2264366 A2 EP2264366 A2 EP 2264366A2 EP 10163806 A EP10163806 A EP 10163806A EP 10163806 A EP10163806 A EP 10163806A EP 2264366 A2 EP2264366 A2 EP 2264366A2
Authority
EP
European Patent Office
Prior art keywords
trigger
housing
hand tool
locking
stop
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
EP10163806A
Other languages
English (en)
French (fr)
Other versions
EP2264366A3 (de
EP2264366B1 (de
Inventor
Yves Guillou
Christophe Le Drappier
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.)
Guilbert Express
Original Assignee
Guilbert Express
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 Guilbert Express filed Critical Guilbert Express
Publication of EP2264366A2 publication Critical patent/EP2264366A2/de
Publication of EP2264366A3 publication Critical patent/EP2264366A3/de
Application granted granted Critical
Publication of EP2264366B1 publication Critical patent/EP2264366B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F23D14/46—Details
    • F23D14/465—Details for torches

Definitions

  • the piezoelectric igniter is positioned against the ignition stop and the trigger exerts a pressure on the piezoelectric igniter, thus polarizing the latter.
  • the housing includes a housing receiving a piezoelectric igniter.
  • the piezoelectric igniter is mounted on other elements present inside the housing.
  • the casing is of complex design since one must provide the housing of parts such as piezoelectric igniter, burner ...
  • the casing In the manufacture of the hand tool, the casing, generally in two parts held together by fixing the type of screw or clutch, must be open for fixing or positioning of the piezoelectric igniter.
  • This disassembly then forces the user to perform a relatively large number of operations and possibly requires the use of tools such as screwdrivers, keys, and the like.
  • This disassembly although feasible in the workshop, is sometimes a source of handling problems on the job site.
  • the worker is located above the roof and is therefore in a position suitable for disassembly of a hand tool (risk of falling screwdrivers, keys, elements of the hand tool or others).
  • the roof covering worker it is common for the roof covering worker to take only the tools strictly necessary for the roofing operation on the roof. It is therefore a problem for this worker to have to go down to get a tool needed to disassemble the hand tool and replace the piezo igniter missing.
  • the invention therefore aims to overcome at least one drawback above.
  • An advantage of the built-in burner hand tool according to the invention is to facilitate the design of the housing in which there is no need to provide a housing to maintain the piezoelectric igniter.
  • Another advantage of the built-in burner hand tool according to the invention is that to replace the faulty piezoelectric igniter, the user will only have to disassemble the trigger, an operation easier than the opening of the casing often in two connected parts to one another in several points. This operation is carried out without tools.
  • the hand tool 1 with built-in burner 3 can be a welding torch, a torch, a burner, a furnace, a soldering iron, a peel iron, or any other flame-heating device or by contact.
  • the casing 2 may be in two parts joined and held on one another by fastening means by screwing or clipping.
  • the join plane is a plane parallel to the sectional planes of the figures.
  • the housing 2 comprises a barrel 28 and a sleeve 29 arranged relative to each other so that their respective axes TT, MM form an angle preferably non-zero.
  • gun means a portion of revolution (about the axis TT) hollow housing 2 for housing elements of the hand tool 1.
  • the housing 2 has a hole 22 where the barrel 28 and the sleeve 29 meet.
  • This orifice 22 extends between the barrel 28 and the handle 29 and is adapted to receive the trigger 5.
  • the orifice 22 extends parallel to the axis TT of the barrel forming a barrel portion 22t.
  • the orifice extends parallel to the axis MM of the handle forming a handle portion 22m.
  • the trigger 5 When the user wishes to operate the hand tool 1, he actuates the trigger 5. For example, he presses the trigger 5 so that it moves along the barrel portion 22t of the orifice 22 ( parallel to the axis TT of the barrel) and further into the housing 2 by the handle portion 22m of the orifice 22. The actuation of the trigger 5 causes a displacement of the piezoelectric igniter 7a towards the stop 6 of ignition sense referenced Sa.
  • the compression of the piezoelectric igniter 7a causes the electric polarization thereof between a piece in contact with the ignition stop 6 and a piece in contact with the blade 4, which makes it possible to produce a spark at the burner 3 via the electrically conductive element 4 placed between the burner 3 and the piezoelectric igniter 7a .
  • the trigger 5 actuates a link 91 connected to A transmitter 92.
  • the transmitter 92 is an elongate member and translational between an expander 93 incorporated in the hand tool 1 and a fuel gas release port 94 .
  • the transmitter 92 includes a gas transmission channel 921 for feeding the fuel gas to an opening 922 opening radially.
  • a spring 95 forces the transmitter 92 against a valve seat 98 associated with the release port 94 .
  • Two O-rings 96, 97 on either side of the opening 922 and on the transmitter 92 seal at the release port 94 when the transmitter 92 is forced against the valve seat 98 associated with the orifice 94 of release.
  • the link 91 makes it possible to transform a displacement in one direction into a displacement in another direction.
  • the rod 91 activated drives the transmitter 92 in translation so as to move away from the valve seat 98 associated with the orifice 94 of release.
  • the combustible gas can then escape from the opening 922 of the transmitter 92 to the orifice 94 of release to supply the burner 3.
  • the means are the spring 95 and the piezoelectric igniter 7a .
  • the spring 95 acts on the transmitter 92 to return it to its starting position, that is to say it is forced against the valve seat 98.
  • the return of the transmitter 92 to its starting position also returns the rod 91 to its starting position and it then acts on the trigger 5.
  • the piezoelectric igniter 7a comprises a spring which exerts a force opposite to the compressive force exerted by the trigger 5 on the piezoelectric igniter 7a . This opposing force The booster contributes to bringing the trigger 5 back to its starting position.
  • a section of difference between the regulator outlet 93 and the gasket 97 acts in concert with the spring 95 to bring the transmitter 92 to its starting position. Indeed, since the same pressure prevails between the outlet of the regulator 93 (smaller section) and the seal 97 (larger section), it creates a force tending to bring the transmitter 92 back to its starting position.
  • the trigger 5 comprises a housing 51 open actuation receiving the igniter 7a piezoelectric.
  • the trigger 5 and the piezoelectric igniter 7a then form a 5-7a assembly that can be dismantled by separating the trigger 5 from the casing 2.
  • Said actuating housing 51 has an open end facing the ignition stop 6 so that the piezoelectric igniter 7a is placed facing the ignition stop 6 .
  • a displacement of the trigger 5 is likely to constrain the piezoelectric igniter 7a against the ignition stop 6 to produce a spark at the burner 3 via the electrically conductive element 4 as described above.
  • the user when the piezoelectric igniter 7a fails, the user will not need to open the housing 2 to replace the piezoelectric igniter 7a . It will only have to extract the trigger 5 from the casing 2, thanks to the dissociable mechanical means with complementary shape, and thereby extracting the igniter 7a piezoelectric out of the casing 2. Also, it does not need to 'tool.
  • the trigger 5 and the housing 2 comprise mechanical means with complementary shape dissociable by elastic deformation.
  • the form-complementary mechanical means provided on the trigger 5 are at least one guide button 54 .
  • the complementary form of mechanical means provided on the casing 2 comprise at least one groove 24 and a protrusion 23 blocking.
  • the groove 24 is formed inside the handle 29 and opens on the handle portion 22m of the orifice 22 receiving the trigger 5 at a mouth 22e.
  • the locking projection 23 is made in the groove 24 and near the handle portion 22m of the orifice 22.
  • the guide button 54 when the trigger 5 is mounted on the casing 2, is located in the internal groove 24 on the opposite side to the mouth 22e relative to the projection 23.
  • the button 54 and the projection 23 are adapted to cooperate in such a way that a stress exerted on the button 54 towards the projection 24 dissociates the trigger 5 from the casing 2.
  • the protrusion 23 blocking is a hard point to limit the movement of the trigger 5 to prevent its dissociation or separation from the housing 2 when the user does not wish.
  • the dissociable mechanical means with complementary shape can dissociate the trigger 5 of the housing 2 without the need for tools. Also, they suited to prevent a displacement of the trigger 5 in a direction opposite to its actuation does not cause the dissociation of the trigger 5 of the casing 2 while the operator does not wish the not, for example in operating mode.
  • the groove 24 can be provided parallel to the direction DD of displacement of the trigger 5.
  • the button 54 slides in the groove 24 on the side opposite the mouth 22e relative at groove 24.
  • the movement of the trigger 5 is limited by the locking projection 23 and the piezoelectric igniter 7a which has a determined compression amplitude.
  • the trigger 5 may also include a spare housing 52 for receiving a second piezoelectric igniter 7b .
  • the user will have a new piezoelectric igniter 7b . He will not have to leave his workstation to recover a new piezoelectric igniter 7b in the middle of a task. It will suffice to release the first igniter 7a piezoelectric housing 51 actuation, to place the second lighter piezoelectric reserve 7b in the housing 51 actuation. It can then, once its task is completed, or at the end of a working day, put a new piezoelectric igniter in the housing 52 reserve.
  • the reserve housing 52 does not require any particular configuration unless it allows the second piezoelectric igniter 7b to remain unconstrained during any manipulation of the hand tool 1.
  • the housing 51 for actuating is longitudinal and provided parallel to the displacement of the trigger 5, while the housing 52 of reserve, also longitudinal, is provided substantially perpendicularly to the housing 51 of actuation.
  • the casing 2 may comprise a guide 21 at the barrel 28.
  • the trigger 5 may comprise guiding means for cooperating with the guide 21 of the casing 2.
  • a displacement in the direction Sa actuating along the guide 21 brings the igniter piezoelectric 7a of the stop 6 of ignition, and a movement in the sense opposite to its actuation along the guide 21 is capable of allow the dissociation of the trigger 5 from the housing 2 as already described above.
  • the movement of the trigger 5 is not limited by the casing 2; the housing 2 is opening at least partly on this side.
  • the guide 21 may be a rail, a groove, a recess or a groove; the guide means of the trigger 5 may be respectively a groove, a rib, a projection or a groove; and vice versa.
  • the displacement of the trigger 5 may be substantially rectilinear.
  • the guide 21 and the guide means are also rectilinear. This allows a simple gesture to disassemble the trigger 5. For example, a simple translation of the trigger 5 is necessary.
  • the hand tool 1 may further comprise a removable lance 8 comprising means for cooperation with the casing 2 for its assembly and disassembly on the casing 2, for example by complementarity of form.
  • the lance 8 comprises a stop 82 which, in contact with the trigger 5, prevents it from being dissociated from the casing 2.
  • the stop 82 may be a radial finger.
  • the lance 8 defines a space in which the flame produced by the burner 3 is contained.
  • the lance 8 may also delimit a space in which air is heated by the flame produced by the burner 3.
  • the hand tool 1 may then comprise one or two elements allowing the delimitation of the movement of the trigger 5 to prevent its dissociation from the casing 2 when the user does not wish: on the one hand there is the protrusion 23 acting as hard point and secondly there is the stop 82 of the lance 8.
  • the figure 1 represents a hand tool 1, for example a welding lamp, with the set 5-7a piezoelectric trigger-igniter mounted on the housing 2.
  • the stop 82 of the lance 8 prevents the assembly 5-7a d be separated from the casing 2.
  • the user To disassemble or disassemble this set 5-7a piezoelectric trigger-igniter, the user must first dismount the lance 8 of the housing, for example with a quarter turn as indicated by the arrow F1.
  • the spear 8 may be missing, in which case this step is not necessary.
  • buttons 54 are already in contact with the protrusions 23 blocking. In which case, it is not necessary to translate the buttons 54 guide in the direction of the arrow F2 beforehand.
  • the construction of the hand tool 1 requires that once the guiding buttons 54 have passed the projections 23 blocking to the sleeve portion 22m of the orifice 22 receiving the trigger 5, the set 5-7a piezoelectric trigger-igniter must be pivoted along the arrow F3 to be able to extract the set 5-7a piezoelectric trigger-igniter, as illustrated on the figure 3 .
  • this movement may be necessary because a displacement of the 5-7a piezoelectric trigger-igniter assembly always in the direction of the arrow F2 as on the figure 2 can cause that the piezoelectric igniter 7a abuts against another element included in the housing 2 or against the housing 2 itself.
  • the assembly of the 5-7a piezoelectric trigger-igniter assembly is performed according to the same steps described above, in the reverse order of disassembly or disassembly.
  • the trigger 5 of the hand tool 1 also allows several modes of operation of the hand tool 1 which are described hereinafter with reference to Figures 6 to 8 .
  • a hand tool 1 comprising a lance 8
  • the latter may further comprise means 83 for cooperation with the trigger 5 for blocking out of operation or unlocking.
  • the means 83 of cooperation prevent, in off-operation blocking, the displacement of the trigger 5 towards the ignition stop.
  • the means 83 for cooperation of the lance 8 are a rotary ring 83 along the axis LL (see FIG. figure 1 ) of the lance 8.
  • the section of the ring 83 has a locking portion 831 and an unlocking portion 832 .
  • the blocking portion 831 extends radially beyond the unlocking portion 832 and on a limited angular portion to abut with a locking wedge 59 secured to the detent 5 in non-operating lock mode.
  • the rotation of the ring 83 makes it possible to switch from the non-operating blocking mode ( figure 6 ) in the unlock mode (or operation, Figures 7 and 8 ). That is to say, the rotation of the ring 83 makes it possible to position either the locking portion 831 in front of the wedge 59 for locking the trigger 5 thus preventing movement of the trigger 5 along the direction Sa (see figure 1 ) actuation; either the unlocking portion 832 facing the locking wedge 59 of the trigger 5 thus releasing the movement of the trigger 5 in the Sa direction of actuation.
  • the casing 2 may also comprise a stop wedge 26 and the detent 5 a locking element 56 in operation, an instantaneous actuating portion 57 for instantaneous operation of the hand tool 1 ( figure 7 ) and a locking actuation portion 58 for locking operation of the hand tool 1 ( figure 8 ).
  • the locking element 56 is positioned above the stop wedge 26 in a direction perpendicular to the displacement direction DD of the trigger 5.
  • the instantaneous actuating part 57 is adapted so that when the user exerts a pressure on it and then releases the pressure, the locking element 56 moves in the direction DD of the displacement of the trigger 5, and does not meet never the 26 stop corner. A combustion gas is then released at the burner 3 during the time between the moment when the instantaneous actuation portion 57 is depressed and the moment it is released.
  • the trigger 5 sinks into the casing 2, for example in the direction Sa ( figure 1 ).
  • the trigger 5 returns to its initial position from before pressure by the action of the resilient element for returning the trigger 5, for example the trigger 5 moves in the direction Se ( figure 1 ).
  • the locking actuation portion 58 is adapted so that when the user exerts pressure thereon, the locking member 56 moves in the operating direction Sa , and downwardly.
  • the locking member 56 moves in the direction opposed to the direction Sa, thanks to the action of the resilient member for returning the trigger 5 and engages the wedge stop 26 thus locking the hand tool 1 in operation.
  • the trigger 5 sinks into the housing 2.
  • the trigger 5 remains locked in a depressed position.
  • a push button is provided on the hand tool 1 and adapted to move the locking element 56 out of the corner 26 stop, this push button moves element 56 of locking away from the stop wedge 26 in the operating direction Ra and upwards. The user will only have to press this button to return the trigger 5 to its initial position.
  • the user is not obliged to maintain the trigger 5 during extended use of the hand tool 1.
  • the fact that the operating modes instantaneous operation or lock can be selected by exercising pressure on different parts of the trigger 5 allows the user to switch from one mode to another easily.
  • the user only needs one hand and one movement to be able to use the hand tool 1 in lock-up operation mode.
  • the groove 24 is parallel to the direction DD of displacement of the trigger 5.
  • the instantaneous actuating portion 57 is located opposite the groove 24. Thus, when the user exerts pressure on this instantaneous actuating portion 57 , the trigger performs a simple translation along the direction DD, as well as the element 56 lock.
  • the latching operation portion 58 is located such that an imaginary line connecting the latching operation portion 58 and the knob 24 is at an angle to the groove 24.
  • the button 24 serves as a pivot to the pivoting movement; the locking element 56 moves downwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Lighters Containing Fuel (AREA)
EP10163806.2A 2009-05-25 2010-05-25 Handgerät mit eingebautem Brenner und ausbaubarer piezoelektrischer Zündorrichtung Active EP2264366B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0953423A FR2945853B1 (fr) 2009-05-25 2009-05-25 Outil a main avec bruleur incorpore et ensemble detente- allumeur piezoelectrique demontable.

Publications (3)

Publication Number Publication Date
EP2264366A2 true EP2264366A2 (de) 2010-12-22
EP2264366A3 EP2264366A3 (de) 2014-06-11
EP2264366B1 EP2264366B1 (de) 2017-07-05

Family

ID=41461093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10163806.2A Active EP2264366B1 (de) 2009-05-25 2010-05-25 Handgerät mit eingebautem Brenner und ausbaubarer piezoelektrischer Zündorrichtung

Country Status (5)

Country Link
US (1) US8556623B2 (de)
EP (1) EP2264366B1 (de)
CN (1) CN101900337B (de)
CA (1) CA2704140C (de)
FR (1) FR2945853B1 (de)

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Publication number Priority date Publication date Assignee Title
FR2975169B1 (fr) 2011-05-11 2019-07-19 Sefmat Bruleur generateur d'air chaud avec allumeur interchangeable.
TW201339511A (zh) * 2012-03-27 2013-10-01 Jin-Lin Cai 瓦斯燃燒器及其抽取式點火模組
KR101404470B1 (ko) * 2014-03-26 2014-06-12 주식회사 코베아 가스 토치
TWI623709B (zh) 2017-09-25 2018-05-11 Gas torch with safety switch and its safety switch
US11079110B2 (en) 2018-09-28 2021-08-03 Zippo Manufacturing Company Childproof ignition device
US12044403B2 (en) * 2020-03-09 2024-07-23 Worthington Cylinders Corporation Hand torch, base, and regulator system

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None

Also Published As

Publication number Publication date
CN101900337A (zh) 2010-12-01
CA2704140C (fr) 2017-11-07
EP2264366A3 (de) 2014-06-11
EP2264366B1 (de) 2017-07-05
CA2704140A1 (fr) 2010-11-25
US8556623B2 (en) 2013-10-15
FR2945853A1 (fr) 2010-11-26
FR2945853B1 (fr) 2013-02-15
CN101900337B (zh) 2014-07-30
US20100297567A1 (en) 2010-11-25

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