DE2314833A1 - CIGARETTE WITH IGNITION DEVICE - Google Patents

Description

Cigarette with ignition device The invention relates to a cigarette or the like with igniter, with one at one end of the cigarette effective frictional offender, which is flammable by rubbing against a friction surface.

In known cigarettes of this type, the cigarette pack is on the outside a friction surface is provided on which a removed cigarette by rubbing with the Friction igniter can be ignited. It has also already been stated that such a Friction surface can be attached inside a tobacco product packaging, but this is the thought has not yet been put into practice, probably because one mounted within the packaging friction surface there is a risk of a there triggered ignition process is due to the others still in the packaging Propagates cigarettes. Apparently.

because of these dangers one has the arrangement of the friction surface on the The outside of the package is generally preferred, although this does present the difficulty It can happen that the ignition does not succeed in rain or strong winds, especially the case of rain is uncomfortable as during the taking out a cigarette required time the friction surface can become so wet that it is permanently unusable will. Another disadvantage of the externally attached friction surface is that after a certain number of ignitions there is significant wear, so that in the case of packs containing, for example, twenty cigarettes, the lighting of the last cigarette is difficult or even impossible.

The invention is based on the object of providing a cigarette with an ignition device to create those described Does not have disadvantages, so safely ignites even under unfavorable conditions such as rain or wind, and that too with the last cigarettes in a pack, and no risk of transferring the Ignition process on other cigarettes caused0 According to the invention, this task is solved with a cigarette of the type specified above, which is characterized is that the friction igniter against other neighboring cigarettes and their friction igniter is shielded by a cover, and that the friction surface is within the cover is provided on a friction surface carrier movable relative to the friction igniter.

In the case of the cigarette according to the invention, ignition is also prohibited in the neighborhood other cigarettes, i.e. within a pack of cigarettes, without the risk of transferring the ignition process.

In addition, a fresh friction surface is available for each ignition process, so that the ignition takes place with great certainty. A disturbance from rain or Wind is practically impossible because the ignition process takes place inside the cover and the cover naturally also offers protection against wind and moisture.

To avoid accidental ignition when transporting the cigarettes Preventing inevitable shocks and movements can be done in a further refinement the invention be provided that the friction surface in normally from the friction igniter removed, but due to the relative movement between the friction igniter and the friction surface Frictionally movable area of the friction surface carrier is provided over the friction igniter is.

According to a further embodiment of the invention, the friction igniter and the friction surface is provided on cylinders or Zglinder segments pushed into one another, which are relatively axially displaceable and on opposite surfaces have the friction igniter or the friction surface, the outer cylinder forms the cover. This embodiment is special for practical manufacture suitable because the cylinders are very easy to manufacture, especially in the form of paper sleeves can be, with one going further in the manufacture of cigarettes usual technology. It is for the purpose of a particularly attending Approach to the usual production method of cigarettes is particularly favorable if -in a further Aungeot-ltung the invention dor outer cylinder the friction surface carrier and the thickening forms and on its inner surface the friction surface wearing; the cylinder located on the inside carries accordingly on its outer surface the frictional sinner. In this embodiment, the paper sleeve of the cigarette can simply at one of its ends form the cylinder lying on the inside and there on the outside with the Friction igniter be coated, as is the case with known cigarettes with an ignition device had already been proposed many times. In this embodiment it is in further Embodiment of the invention is useful when the outer cylinder at least surrounds an axial portion of the cigarette; in this way, the one on the outside can The cylinder also forms a complete separate packaging for the cigarette.

In the embodiment described with relatively displaceable cylinders it is also possible in a further embodiment of the invention that the outside lying the cylinder, # the cover forms, the friction igniter on its inner surface carries, and that the inner cylinder forms the friction surface carrier and on its outer surface carries the friction surface. So this is the outer cover The cylinder that forms the friction surface carrier does not at the same time carry the friction igniter. This inside horizontal arrangement of the friction surface carrier offers the special advantage that the second, inner cylinder means that there is no additional Space outside the cigarette circumference is required; this reduces the dimensions the packaging to be used.

This advantage becomes even more apparent when further Embodiment of the invention of the cylinder carrying the friction igniter with the shell of the Cigarette is united. This is possible in particular because this cylinder is simply an extension of the usual cigarette case. But it can also be more advantageous in terms of manufacturing if in a further embodiment of the invention the cylinder carrying the friction igniter is a separate one connected to the cigarette Part is; this separate part can then be produced on special manufacturing machines manufacture and provide with the friction igniter. Comes as a connection with the cigarette not only an adhesive bond or the like in question, but in particular also one frictional connection, in particular in the form that the Re ibünd it is carrying Cylinder on the cigarette is displaceable and removable from the cigarette. the last-described embodiment, like other embodiments, has those in a further configuration of the invention of the Reibsdnder load-bearing Cylinder is detachable from the cigarette, the advantage that after the ignition process Remnants of the ignition device can easily be removed from the cigarette, so that Impairments to the appearance of the cigarette can be avoided.

One embodiment is particularly advantageous for practical use the invention in which the cylinder carrying the friction surface is enclosed in a packaging for the cigarette is connected, so that when you remove the cigarette from the Packaging the ignition takes place. If for some reason you have an ignition would like to avoid inside the packaging, although per se because of the invention If there are no dangers provided, a further cover is recommended Possible embodiment of the invention, which is characterized in that the Cylinder carrying the friction surface with the cigarette and / or the cylinder carrying the friction igniter Cylinder is connected, in particular by a frictional connection, and under Overcoming the connection is displaceable relative to the cylinder carrying the friction igniter is. In this as well as in other embodiments, it is expedient that the outer cylinder is shorter ala the inner cylinder, so that the two cylinders can be easily grasped separately from one another; this facilitates the execution of the relative movement of the two required for ignition Cylinder To allow the ignition and combustion process to spread to those parts to avoid the cylinders, which are only used for touching and also after the ignition process are needed to loosen the remains of the cylinder from the cigarette and throw it away, it is useful in a further embodiment of the invention if the friction igniter load-bearing cylinders in the areas not used to pass on the ignition at least partly made of flame-retardant or non-combustible material, in particular fire retardant impregnated paper. For similar reasons it may be useful to that the cylinder carrying the friction surface is at least partially made of flame-retardant or incombustible material, in particular fire-retardant impregnated paper. This embodiment is naturally particularly advantageous when the friction surface load-bearing cylinder is the outer cylinder and at the same time forms the cover; in this case, the non-combustible or hardly combustible version of this cylinder is used also for Ensuring the desired shielding against unwanted things Transfer of the ignition process to other neighboring cigarettes.

Another particularly favorable embodiment is in a further refinement of the invention characterized in that the friction igniter from the end of the Xabakstranges is arranged at one end of the cigarette with an axial distance. This will make that Transfer of disruptive or harmful substances from the ignition area to the filling the cigarette largely prevented.

In order to secure the ignition process to the content in this embodiment the cigarette, it can be useful in a further embodiment of the invention be a combustible one in the space between the friction igniter and the end of the tobacco rod Material to be provided. Particularly suitable is paper or tobacco material that is so is impregnated so that it has the desired flammability and ember reproductive capacity having; as a suitable impregnating agent for such purposes are in particular known the alkali nitrates.

It has already been mentioned that a suitable axial distance between the friction and the end of the cigarette filling a disturbing crossing of Gases, which form during the ignition process are largely prevented from entering the cigarette filling can be. An even more favorable effect in this respect can be found in others Embodiment of the invention achieve that one end of the cigarette against the gases produced during the ignition process by a seal of flammable or is protected by heat-destructible material. In particular, it can happen be a closure made of cigarette paper or similar material. When the combustion process has reached this conclusion and destroyed it, so that the actual smoking process can start, the unpleasant-tasting that arises during the ignition process and odorous gases, especially sulfur dioxide, have already largely evaporated.

According to the invention, it is particularly advantageous to use those according to the invention Cigarette in a sales package, mostly in those parts that make up the friction igniter and / or are adjacent to the friction surface, made of flame-retardant or non-combustible Material is made, in particular fire-retardant impregnated paper. With such a Embodiment is an even further improved security against undesired Spread given the ignition processes. For impregnating the paper, also for those further ahead mentioned possibilities for the impregnation of the nested cylinders, numerous agents are known, particularly alum, sodium carbonate and the like Fabrics. The person skilled in the art is readily able to identify from the large number of known fire retardant impregnation agent to select a suitable agent.

The production of suitable friction surfaces and friction igniters is also in preparation no difficulties for a person skilled in the art.

In particular, it has long been from the technique of matches known which materials can be used for this. Mentioned here are ins special mixtures of antimony trisulfide and potassium chlorate (Sb2S3 + Kr103), the together with suitable binders for the friction igniter come into question. The friction surface can in particular in a known manner from red phosphorus, antimonsulide and dextrin exist.

Overall, the present invention creates a cigarette, with which, while maintaining complete safety, lighting can be ignited independently of foreign flames Safe even in strong drafts and possibly also in the rain possible is. Another particular advantage is that the burning time of the ignition device can be precisely matched to the ignition process. The creation is in the following based on exemplary embodiments in conjunction with the drawing described in more detail, all features differing from the prior art may be of importance to the invention.

Figures 1 to 8 show several in a schematic longitudinal section different execution examples.

Only one cigarette is shown in each of the Piguren; it understands however, that such cigarettes normally come in packs, for example twenty or more cigarettes were sold, with all cigarettes in a pack sealed lying next to each other.

It should also be noted that the drawings are not to scale are; in particular, the thicknesses of the shells and cylinders are shown greatly exaggerated, to make the drawings clearer. As far as the same components are concerned acts in different figures, the same reference numerals are used.

In all of the embodiments shown in the figures it is preferably cigarettes, so smokable objects that essentially consist of a sleeve made of cigarette paper and a filling made of tobacco. It understands However, that corresponding embodiments also with cigars, cigarillos and Similar objects are possible, in which in particular a sheath made of tobacco or labak foil is present. It should also be noted that in the figures only cigarettes are shown without a filter mouthpiece; however, the invention can obviously also at Bulk or filter cigarettes can be used.

Fig.1 shows a cigarette 2 in a package, from that in the figure only the end faces 4 and 6 are indicated, as well as a tear line 8, up to which - the pack by folding away - the upper end face 4 can be opened. The cigarette 2 consists essentially of a sleeve 10 made of cigarette paper or other material usable as a wrapping and a filling 12 made of tobacco or other smokable material.

The cigarette 2 is surrounded by a first cylinder 14, the so is mounted on the case 10 that it is from the H31e in the axial direction of the cigarette can be deducted. For this purpose, the cylinder 14 can, for example, be frictionally engaged sit on the shell 10, or it can, as shown in Figure 1, the upper The end of the cylinder 14 is attached to the casing 10 by means of a tearable adhesive point 16 be.

The cylinder 14 can also consist of cigarette paper that if necessary, can be somewhat stronger than that for the shell 10 paper used, the cylinder 14 protrudes a piece at the lower end in FIG far beyond the one (lower in FIG. 1) end of the cigarette 2 to about the lower front edge 6 of the Packaging. It can be seen that the cylinder 14 represents a type of individual packaging for the cigarette 2. On his over the cigarette 2 protruding (in Fig. 1 lower) sunde 18 carries the cylinder 14 on its outer surface an annular friction igniter 20, which in a known manner consists of a layer of antimony sulfide (Sb2S), potassium chlorate (KClo3) and a binding agent. The lower end section 18 of the cylinder 14 is seated in a second cylinder 22 which, on its in FIG. 1 the lower end is connected to the end wall 6, in particular with the aid of an adhesive connection 24, and at its other, upper end in FIG. 1, a friction surface on its inner surface 26 carries, which is such that it ignites the friction he 20 with rubbing touch entan flames. The friction surface 26 can be constructed in a known manner, in particular consist of red phosphorus, antimony sulfide and dextrin.

The outer cylinder 22 is preferably also made of Paper of appropriate thickness and has such a large axial length that a sufficient axial distance between the frictional offender 20 and the friction surface 26 per se can be provided; this distance prevents the usual slight relative movements during the transport of the pack unintentional ignitions occur.

It can be seen that in the case of the cigarette according to FIG Cylinders 14, 22 are provided, the on opposite planes the Wear friction igniter 20 or the Reibfläsche 26 and thus a relative movement apart Form ignition device that can be activated in the axial direction. You can also see that the outer cylinder 22 represents a cover for the friction igniter 20, so that Unintentional ignitions of the friction igniter by flying specks from neighboring rims Cigarettes are excluded here. The outer cylinder 22 forms the same side the carrier of the friction surface. To keep the ignition process even better under control and security against unintentional spread the ignition To increase even further, the cigarette shown in FIG. 1 has the outside horizontal cylinders 22 made of an incombustible material, in particular a paper, that is impregnated with a fire retardant such as alum. Furthermore, the one is inside cylinder 14 lying in a ring area 28 also impregnated fire-resistant, and The end wall 6 of the packaging is also fire-proof or fire-resistant in a corresponding manner made. In the figures, such areas are made fire-proof or fire-retardant marked by cross hatching.

For use, the packaging is opened as usual, with the top End wall 4 and a (not shown) side wall of the packaging up to about the line 8 can be opened. If then the cigarette 2 in the direction of the arrow 50 is taken out of the packaging, the nested cylinders 14, 22 pulled apart axially (i.e. in the direction of arrow 30), and in doing so, strokes the friction igniter 20 over the friction surface 26, so that the ignition during removal out of the packaging. Since in the packaging the adjacent Cigarettes by the external cylinders 22, which are firmly connected to the packaging, from one another are separated, it cannot happen that when pulling out a cigarette unintentionally a neighboring cigarette is taken out and lit. These The separating and safety effect of the outer cylinder 22 can thereby be increased be that the outer cylinder receives a greater linear expansion and, for example extends up to the vicinity of the upper end of the inner cylinder 14 in Zig.1. After the filling 12 of the cigarette has burned sufficiently, the inside can Cylinder 14 can be stripped from the cigarette and discarded.

The cigarette 32 shown in FIG. 2 is basically the same in its structure the cigarette 2 according to Figure 1. However, an external cylinder 34 is provided here, which is not connected to the end wall 6 of the packaging, but instead with the cigarette 32, more precisely with the inner cylinder 14, namely either in frictional engagement or for greater security with the help of a tearable one Adhesive connection 36. Furthermore, in the space between the lower ends of the filling 12 and the interlocking one Cylinders 14, 34 a readily combustible material 38, in particular made easily combustible Tobacco, provided; this material is said to cause combustion to take place safely after ignition the lower end of the filling 12 transferred.

In use, the cigarette 32 of FIG. 2 together with the two cylinders 44 and 34 removed from the packaging. At their in Fig. 2 The upper ends of the cylinders 14 and 34 are spaced apart so that they are comfortable are detected separately from each other and can be pulled apart axially, wherein the adhesive point 56 tears open. The ignition takes place, and then it is after the The filling 12 also burns the inner cylinder 14 of the cigarette 32 peeled off, the adhesive point 16 tearing open.

3 shows a cigarette 40, in which the de friction igniter 20 carrying Cylinder 42 (inner cylinder) with the shell 46 of the cigarette 40 combined is, namely here it simply represents an acquisition of this envelope 46; this is different from in the embodiments according to Figures 1 and 3, in which the cylinder 14 troughing the friction igniter 20 is indeed with the cigarette case connected, but otherwise separate part forms.

In the cigarette according to FIG. 3, too, the friction igniter 20 is axially spaced arranged from the end of the tobacco filling 12. In addition, here is to keep away the gases produced during the ignition process, in particular sulfur dioxide, the lower end the filling 12 closed by a closure 48 made of cigarette paper. For the Termination 48 may also be another material that can be destroyed by heat or combustion be used; In any case, the termination 48 must be reached upon reaching the by the friction igniter 20 outgoing and over the inner cylinder 42 continued ignition or Combustion process become ineffective, so that the combustion of the filling 12 is initiated can be. In the embodiment according to FIG. 3, it is again as in the embodiment According to FIG. 1, an external one connected to the end face 6 of the packaging Cylinder 22 used.

Fig.4 shows a cigarette 50, which is similar to the cigarette 40 according to FIG. 3 dispenses with a separate inner cylinder and instead whose the casing 52 of the cigarette at the same time lies on the inside The cylinder and carrier of the friction igniter 20 are used. Here, however, is again like at the AusSührungsform of Fig. 2, an external cylinder 34 is provided which not with the packaging, but instead with the cigarette, and although via a tearable adhesive point 36. The handling is very similar to that of the cigarette 32 of FIG. 2. The cigarette 50 is together with the outer lying Cylinder 34 removed from the packaging. Then the cylinder 34 becomes axial deducted. The ignition takes place. The filling 12 extends to the end of the cigarette, to prevent the filling from loosening due to vibrations. But Bs can also the arrangement according to Figures 1 and 2 can be used, so with an axial distance between the friction igniter 20 and the filling 12, or the arrangement according to FIG. 3 with additional Graduation 48.

FIG. 5 shows a cigarette 54 in which the layers of friction igniter 20 and friction surface 26 are interchanged, namely here the one as the carrier of the friction surface 26 serving cylinder 56 in the interior of the outer serving as a carrier of the friction igniter 20 Cylinder 58 arranged, and correspondingly are the frictional offender 20 and the friction surface 26th on the inside and outside of cylinders 58 and 56, respectively. The cylinder on the inside 56 is connected to the end wall 6 of the packaging via adhesive points 60 and consists just like this face 6 made of fire-proof impregnated paper. The one on the outside Cylinder 58, which is here at the same time as a carrier of the Reibsdnders 20 and as a cover serves, is similar to the embodiment of Figure 1 by means of a tearable Blebstelle 62 attached to the shell of the cigarette. The handling is straightforward clear: when the cigarette 54 is removed, it is ignited, and after it has been burned When the cigarette is filled, the outer cylinder 58 can be withdrawn axially from the cigarette will.

The outer cylinder is similar to the embodiment according to FIG. 1 58 impregnated fire-retardant in a ring zone 64.

Fig. 6 shows a cigarette 72, which is from the cigarette 54 after Fig. 5 differs in that similar to the cigarettes according to the figures 3 and 4 one of the cylinders is combined with the shell of the cigarette, namely Btellt bior the outer cylinder 74 an extension of the sleeve 76 of the cigarette 72 of it 7 shows a cigarette T8 that follows the cigarette 72 6 is the same with the exception that the cylinder 80 carrying the friction igniter 20 is attached as a separate component to one end of the cigarette.

This enables the cylinder 80 to be manufactured separately with the friction igniter 20 provided thereon.

FIG. 8 shows a cigarette 82 in which, as in the case of the cigarettes, after FIGS. 5 to 7 show an internal cylinder 84 as a support for the friction surface 26 and an external cylinder 86 connected to the cigarette as a support of the Friction igniter 20 is used, but here the inner cylinder 84 is not with the Front wall 6 of the packaging, but instead with the cigarette, more precisely connected to the external cylinder 86 attached to the cigarette, and through an easily rubbed adhesive point 88. So that the cylinders 84, 86 can detect separately and pull apart to trigger the ignition process, must the inner cylinder 84 protrude somewhat from the outer cylinder 86. The embodiment according to FIG. 8 can also be used in the sense of the embodiments according to the figures 6 and 7 are turned away so that the outer cylinder 86 with the shell of the Cigarette united or one attached to one end of the sheath short extension represents.

The embodiments according to Figures 5 to 7 have in common that the cylinder carrying the friction surface within the cylinder carrying the friction is arranged. Less space is therefore required. On the other hand, these have forms of development but the disadvantage that when you remove it from the pack, the ignition is located on the outside Cylinder takes place, albeit on the inside, so that there is a risk of skipping the ignition on neighboring cigarettes is increased accordingly. To this disadvantage To counteract, you can put an additional pack between each cigarette Provide sleeves or partitions, which may also be impregnated to be fire-retardant or fire-proof could be. Such measures are not shown in the figures. In general one will prefer the embodiments according to Figures 1 to 4, in which the Outer cylinders serving as a shield and carrier of the friction surface are not also used for Forwarding the combustion process is used.

In general, it applies to all embodiments that for the parts serving to propagate the combustion, if possible, such materials are used that have as little bad smelling or as possible when burned Develop harmful substances and burn them as completely as possible, so that only small amounts of ash remain. In general, these demands sufficiently fulfilled by the usual cigarette paper. If such materials are to be provided in a closer packing, the use of accordingly is recommended prepared tobacco. This is the case, for example, with the filling material 38 according to Figure 2, in which a fairly tight packing may be desirable if it is not only serves to forward the combustion process, but also for solidification.

Such consolidation can be desirable in order to keep you as tight as possible To maintain the fit of the two nested cylinders and thereby during the ignition process ensure sufficient contact pressure.

The illustrated annular design of the cylinder and the one on it attached friction surfaces and friction igniter is in terms of stability and the Manufacturing mostly particularly cheap. But it is definitely in the Within the scope of the invention to run the cylinder only as a partial cylinder; this can for example done in the form that a number of cigarettes in trough-shaped next to each other shaped cylinder partial surfaces is inserted, which embody the outer cylinder. These and other embodiments are within the scope of the invention.

Claims (2)

Expectations 1. Cigarette or the like with ignition device, with one on the one end of the cigarette effective friction igniter, which is activated by rubbing against a friction surface Is flammable, characterized in that the friction igniter (20) against neighboring other cigarettes and their friction igniter is shielded by a cover, and that the friction surface (26) within the cover on a relative to the friction igniter movable friction surface carrier is provided. 2. Cigarette according to claim 1, characterized in that that the friction surface (Z6) is provided in the area of the friction surface carrier which is normally distant from the friction igniter (20) but is movable over the friction igniter (20) due to the relative movement between the friction igniter (20) and the friction surface (26). 3. Cigarette according to claim 1 or 2, characterized in that that the friction igniter (20) and the friction surface (26) on cylinders (14 or 22 14 or 34; 42 or 22; 52 and 34, respectively; 58 and 56, respectively; 76 and 56, respectively; 80 or 563 86 or 84) or cylinder segments are provided which are relatively axially displaceable are and on opposing surfaces the friction sensor (20) or the friction surface (26), the outer cylinder forming the cover. 4. Cigarette according to claim 3, characterized in that the outside lying cylinder (22 34) forms the friction surface carrier and the cover and on its inner face carries the friction surface (26), and that the inner cylinder (14 46t 52) carries the friction igniter (20) on its outer surface (FIGS. 1 to 4). 5. Cigarette according to claim 4, characterized in that the outside lying cylinder (34) surrounds at least one axial section of the cigarette (FIG. 2). 6. Cigarette according to claim 3, characterized in that that the outer cylinder (58386376380) on its inner surface the friction igniter (20) carries, and that the inner cylinder (563 84) forms the friction surface carrier and carries the friction surface (26) on its outer surface. 7. Cigarette according to one of claims 3 to 6, characterized in that that the cylinder (42 52; 74; 80) carrying the friction igniter (20) with the shell of the Cigarette is united (Figures 3, 4, 6 and 7). 8. Cigarette according to one of claims 3 to 6, characterized in that that the cylinder (14358386) carrying the friction igniter (20) is connected to the cigarette separate part (Figures 1, 2, 5, 7 and 8). 9. Cigarette according to claim 7 or 8, characterized in that the the cylinder (14; 58; 86) carrying the friction igniter (20) can be detached from the cigarette (Figures 1, 2, 5 and 8). 10. Cigarette according to claim 8, characterized in that that the cylinder (14158t86) carrying the friction igniter (20) is displaceable on the cigarette and removable from the cigarette (Figures 1, 2, 5 and 8). 11. Cigarette according to one of claims 3 to 10, characterized-characterized, that the friction surface (26) carrying cylinder (22t56) with a packaging (6) for the cigarette is connected so that when the cigarette is removed from the package the ignition takes place (Figures 1, 3, 5, 6 and 7). 12. Cigarette according to one of claims 3 to 11, characterized in that that the cylinder carrying the friction surface with the cigarette and / or the friction igniter bearing cylinder is connected, in particular by a frictional connection, and overcoming the connection relative to the cylinder carrying the Re ibünder is movable. 19. Cigarette according to one of claims 3 to 12, characterized in that that the outer cylinder (22-34) is shorter than the inner cylinder (14t46t52) (Figures 1, 2, 3 and 4). 14. Cigarette according to one of claims 3 to 13, characterized in that that the cylinder carrying the friction igniter does not pass on the ignition Serving areas at least partially made of flame-retardant or non-combustible Material is made, in particular fire-retardant impregnated paper. 15. Cigarette according to one of claims 3 to 14, characterized in that that the cylinder (22t56) carrying the friction surface (26) is at least partially made of heavy combustible or non-combustible material, especially fire-retardant impregnated Paper (Figures j and 5). 16. Cigarette according to one of the preceding claims, characterized in that that the friction igniter (20) from the end of the tobacco rod (12) to the one end the cigarette with Axialabst and is arranged. 17. Cigarette according to claim 16, characterized in that in the Space between the friction ring (20) and the end of the tobacco rod (12) is a combustible one Material (38) is provided (Fig.2). 18. Cigarette according to one of the preceding claims, characterized in that that one end of the cigarette against the gases produced during the ignition process a closure (48) made of combustible or heat-destructible material protected is (Fig.3). 19. Cigarette according to one of the preceding claims, characterized through the use in a sales package, at least in the few parts (6), which are adjacent to the frictional offender (20) and / or the frictional surface (26), are difficult combustible or non-combustible material, especially fire-retardant impregnation Paper (Figures 1 and 5). L e r s e i t e