DE1914856A1 - Lighter with ignition mechanism - Google Patents

Description

Dipl.-Ing. H. Sauerland ■ Dr.-Ing. R. King Patent Attorneys · 4ddd Düsseldorf · Cecilienallee 76 -Telefon 43S73S

Our files: 24-45 1914856 ₂ March 1, 1969

Be / J

Tetra Molectric Limited, 2 Raymond Buildings, Gray's Inn, London , ¥. C. 1, England

"Lighter with ignition mechanism"

The invention relates to a lighter with an ignition mechanism for igniting escaping fuel from a burner in a fuel located at the burner mouth Ignition zone by a between two electrodes with the help of a hammer and a piezoelectric crystal generated sparks, whereby the hammer or crystal suddenly hits the crystal or crystal under the action of a spring. hits the hammer. A trigger that reacts to finger pressure and the spring is used to operate the lighter and thus tensioning the moving part of the ignition mechanism, which is then suddenly released to be able to move towards the other part.

In the case of lighters with an ignition mechanism of the type described above, the spark voltage and thus the ignition effect depend on it on the impact intensity, which is communicated to the piezoelectric crystal by the hammer. This in turn depends from the momentum and thus from the speed of the moving hammer or crystal at the moment of the impact, whereby the speed depends on the distance over which the moving part is below the action of its spring can be freely accelerated,

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before hitting the other part. It: is therefore important that at the moment of releasing the moving part of the hammer and the crystal as far as possible are spaced apart within the limits given by the size of the lighter. To the hammer or To give the crystal enough room to move, one was forced in the past to use larger lighters Make dimensions than they were necessary for the other functions. Such lighters are not only unwieldy, but also their appearance leaves a lot to be desired.

The object underlying the invention is now to provide a lighter with an ignition mechanism of the initially to create the type mentioned, which does not have the aforementioned disadvantages, but rather with the smallest possible dimensions the lighter housing allows the greatest possible stroke.

According to the invention, this object is achieved in that a finger pressure is used to actuate the ignition mechanism Movable from the normal position to the working position and in this partly via that of the lighter housing Outer contours formed in the normal position protruding trigger is used, the adjustment movement initially to produce or enlarge the stroke stroke as well as to tension the mechanism a movement of the Hammer or the crystal caused by the crystal or hammer, and then the hammer or crystal to through The acceleration caused by the spring action is released. This results from the adjustment movement the trigger an extra space that can be used for the stroke stroke. The ignition mechanism can can therefore be accommodated in a compact housing.

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For the ■ invention it is irrelevant whether the piezoelectric crystal or the hammer with the trigger is moved, and also whether the one with the trigger- moving part subsequent to the other part serves or vice versa. The travel of the hammer or crystal moving with the trigger is preferably about as long as the stroke stroke. In this way there is an optimal saving of space, since in the normal position of the movable hammer or crystal snugly between the housing wall of the lighter and the housed fixed crystal or the hammer is.

The part moving with the trigger is preferred housed inside the actuator that is used to. Actuate.' the ignition mechanism of the burner and the ignition zone is moved.- In this way, when delivering. move back the trigger with this, moved crystal or preferably hammer the extra stroke here and nevertheless remains hidden inside the shutter release.

Furthermore, the invention is characterized by a structural unit which includes the hammer or crystal which moves with the trigger and which is likewise in a outside of the lighter housing in normal position formed outer contours, located position is movable. The structural unit having the hammer has, for example a head that rests directly on the crystal, and. a handle for guiding the.-hammer when it is moving.-The The unit comprising the crystal consists, for example, of the crystal itself, a support part and an insulating gel for the crystal.

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To further solve the problem, a lighter in which the adjustment movement of the trigger is moved away from the ignition zone can be one of the Hammer or crystal not moving with the trigger Comprising structural unit fill the ignition zone and by a spring from the 'ignition zone out with the be brought into contact with the trigger moving part to form the stroke stroke. That way is at least part of the stroke stroke required to generate an ignition spark is moved to the ignition zone, which is unused space in known lighters in the unignited state of the lighter.

The movable assembly can be in the normal position of the lighter lie in the ignition zone or be stretched into the ignition zone before the trigger the release takes place.

Two embodiments of lighters according to the invention are shown in the drawing and are described below described in more detail. Show it:

1 shows a partially sectioned side view of a first exemplary embodiment of the lighter with the ignition mechanism in the normal position;

FIG. 2 shows the exemplary embodiment shown in FIG. 1 with a partially actuated ignition mechanism; FIG.

3 shows the embodiment shown in FIGS. 1 and 2 with a fully actuated ignition mechanism;

4 to 6 representations corresponding to FIGS. 1 to 3 of a second exemplary embodiment, of the lighter according to the invention.

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The lighter shown in Figures 1 to 3 has an outer housing 4 and a finger pressure to be actuated trigger 5, which complement each other and thus result in the outer contour of the lighter housing. in the A fuel tank 6 with an inlet valve 7 and a burner 8 is installed in the lower part of the housing 4.

The ignition mechanism is accommodated on a support plate 9 inside the trigger 5. A piezoelectric Crystal 10 is mounted in an insulating housing 11 firmly connected to support plate 9. The crystal is 10 electrically connected to one electrode 12 and the torch 8 constituting the other electrode. The trigger 5 serves as a holder for an inner molded part 13 which is attached to the trigger 5 via rubber blocks 14. That Molded part 13 has a downwardly directed profile leg 15 and two likewise 'downwardly directed Tabs 16 which receive a pin 17 extending between them. The pin 17 is in one-in upwardly curved side parts of the support plate 9 arranged pair of slots 20 out. The molding 13 is also provided with a second pair of downwardly directed tabs 18 each having a slot 21, and serve to guide a pin 19. The pen 19 extends between two also upwardly curved side parts of the support plate 9 · the lower surfaces the slots 20 and 21 act as guides and the pins 17 and 19 act as cams around the trigger 5 at its shown in Figs. 2 and 3, rearward and downward movement. The top Ends of the slots 20 and 21 ensure the correct position of the trigger in the normal position of the lighter 5. By means of a tension spring 22, which is inserted between a holding piece 23 provided on the insulating housing 11 and one on the mold

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part 13 arranged hook 24 is attached, the Trigger 5 is brought back into its normal position shown in FIG.

A arranged on the profile leg 15 nose 25 rests on an arm 26 of a pivot lever, so that when moving of the trigger 5 against the action of the spring 22, the pivot lever is tilted about its pivot point 27, whereby his other arm 28, which engages under the burner nozzle 8, raises this and thereby the burner valve opens so that the fuel in the tank 6 can flow out through the burner 8.

A hammer consisting of a head 29 and a handle 30 is attached in such a way that it can perform a horizontal movement above the support plate 9. Both a pin 31 , which penetrates the hammer head 29 horizontally and is guided in slots 32 of the upwardly curved side parts of the plate 9, as well as an opening 33 provided in the rear, upwardly curved side part of the support plate 9 through which the handle is used 30 can slide through. Between the hammer head 29 and the rear, upwardly bent part of the plate 9, a compression spring 34 is arranged, which forces the hammer to the left, that is, into contact with the crystal 10.

As soon as the trigger 5 is actuated, its rear end moves beyond the normal position of the lighter given outer contour. At the same time, the pin 31 and thus the hammer together with the trigger 5 moved to the right against the spring action of the spring 34, namely by engagement of the pin 31 in

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j a notch of a second nose 35 of the profile leg As a result, the hammer is brought into the horny tensioned position shown in FIG. 2. In this fully tensioned position In its position, the end of the stem 30 is also outside the outer contours of the normal position shown in FIG. 1.

The further backward movement of the trigger 5 forces the nose 35 due to its resilient mounting to slide over the pin 31, so that the hammer is suddenly released and by the spring 34 after accelerated up to the impact on the crystal 10 will. The snap movement of the nose 35 over the pin 31 is made possible by the lower cam edge of the slot 21. The sudden impact on the crystal 10 is between the burner nozzle 8 and the electrode 12 generates a voltage which is in the form of a spark 12a discharges, whereby the fuel, which escapes from the burner nozzle 8 at this point in time, becomes a flame 36 is ignited.

As soon as the trigger 5 is released, the flame will 36 automatically deleted, since the trigger .5 is now returned to its normal position by the spring 22 and the burner valve closes under the action of its spring. The parts take up the in Fig. 1 shown normal position.

The second embodiment shown in Figures 4 to 6 of the lighter according to the invention has an outer housing 37 which contains a fuel tank 38 and a trigger 39- picks up. In the tank 38 an inlet valve 40 and a burner valve 41 is installed, which

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leads to a burner 42. The trigger 39 contains a piezoelectric crystal 43 which is mounted with a support part 43 ′ in an insulating housing 44. This multi-part structural unit is fastened on a support plate 45. One end of this support plate 45 has an upwardly curved side part with an opening 46 through which a hammer consisting of a handle 47 and a head 48 slides. The hammer can perform a horizontal movement via a pin 49 and a slot 50. The hammer is held in abutment with the crystal 43 by a spring 51 '*. The crystal 43 is electrically connected to an electrode 52, which is embedded in an insulating body 53 fixedly connected to the trigger 39, and to the burner 42, which forms the second electrode.

The trigger 39 is movably attached to the outer housing 37 under the action of a return spring and by guiding pins 55 and 56 sliding in cam slots 57 and 58. The pin 3 ^> sits between a pair of tabs extending downward from the trigger 39. The slots 57 cooperating with the pin 55 are located in side parts 60 extending upward from a mounting plate 61. The pin 56 extends between upwardly directed side parts 62 of the Mounting plate 61, while the corresponding slots 58 are arranged in tabs directed downwards from the trigger 39.

Upon actuation of the lighter, the trigger is moved back and down from the burner 42, wherein the electrode 52 and the structural unit of the crystal are moved along with it. When the trigger 39 is moved, a Angle lever 64 is pivoted and thereby the burner nozzle

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raised so that the valve 41 is opened and fuel from the tank 38 can flow into the burner 42. As soon as the trigger 39 is moved further to the right, the hammer is by engagement of the pin 49 in a cam plate 65 attached to the trigger 39 so that the crystal 43 moves away from the hammer, wherein the stem 47 slides in the opening 46 and the spring is compressed. This position is shown in FIG. In a certain position the cam plate 65 slides over the pin 49 so that the hammer is released and is accelerated under the action of the spring 51 until it hits the crystal 43 (see FIG. 6). As a result of this impact, a spark 52a is generated between the electrode 52 and the burner 42, which the fuel in the ignition zone 66 above the burner 42 and around it to a flame 67 ignites, which through an opening burns which is caused by the retraction of the electrode 52 with the trigger 39 above the burner 42 is created.

When the trigger 39 is subsequently released, all of the parts come back under the action of the spring 54 their normal position.

In the exemplary embodiment described above, the normal position shown in FIG. 4 is between the hammer 48 and the crystal 43 has no hub. When the trigger 39 is moved away from the torch 42, the rear protrudes End of the trigger and part of the crystal assembly outside across the plane of the side wall of the housing 37 addition, i.e. outside of the outer contour that the lighter in the normal position shown in FIG forms. This forms the stroke for the hammer. which then until it hits the crystal 43

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is moved. It can also be seen that in the normal position, the free end of the hammer handle 47 as well like the electrode 52 and its insulating housing 53 one Fill in part of the ignition zone 66 that is above and around the burner. During the serve movement to generate an ignition spark, however, both parts move out of the ignition zone and stop so that the ignition zone is cleared prior to spark formation. In this way, the stroke of the hammer is partially through the movement of the trigger and the crystal assembly to the outside of that formed by the lighter in the normal position Position located on the outer contours and partly formed by the previously unused space of the ignition zone.

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Claims (1)

1.1 - ■ T9H856 Tetra Molectric Limited, 2 Raymond Buildings, Gray's Inn, London , WC 1, England Patent claims: Lighter with ignition mechanism for igniting fuel escaping from a burner in one at the burner mouth lying ignition zone by one between two electrodes with the help of a hammer and a piezoelectric Crystal generated sparks, whereby the hammer or the crystal suddenly hit the spring under the action of a spring Crystal "or hits the hammer, characterized in that to actuate the ignition mechanism one that can be moved from the normal position to the working position by finger pressure and is in this position Trigger protruding partly beyond the outer contours formed by the lighter housing in the normal position (5, 39) is used, the adjustment movement of which is initially used to establish or increase the stroke stroke and to tension the mechanism moves the hammer (29, 48) or the crystal (35, 43) away from the crystal (35, 43) or hammer (29, 48) causes, and then the hammer or the crystal to caused by spring action Acceleration is released. 2. Lighter according to claim 1, characterized in that the hammer (29) together moved with the trigger (5) and its adjustment movement is essentially as large as the stroke. 3. Lighter according to claim 1, characterized in that "marked, that the crystal (43) together moved with the trigger (39) and its adjustment movement is essentially as large as the stroke. 90 984 1 / 0-2 S 8. 4. Lighter according to one or more of claims 1 to 3, characterized by a structural unit which encloses the hammer or crystal moving with the trigger and which can also be moved into a "position located outside of the outer contours formed by the lighter housing in the normal position." 5. Lighter according to one or more of claims 1 to 4, characterized in that the trigger (39) is both off when actuated the ignition zone (66) as well as that containing the hammer or crystal not attached to the trigger Assembly (47, 48) is moved away, fills the ignition zone (66) and is removed from the ignition zone (66) by a spring (51) is knocked out on the part (43) that is moved with the trigger (39) to form the striking stroke. 9.0984 1/02 5 & ■