JP2011205915A - Smoking article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smoking article comprising a first part containing a smokable material and a second part containing an end that is movable relative to the first part in which the second part contains a filter and the characteristics of the filter of the smoking article are determined by the position of the first part relative to the second part.SOLUTION: The smoking article 50 comprises a smokable material and a sleeve 53 configured to be movable relative to the smokable material. The filter 54 is connected to the sleeve. The smoking article is configured such that the position of the sleeve 53 relative to the smokable material determines a property of the filter 54. A cigarette unit is moved so that the filter 54 is separated from the end of the sleeve to form a hollow 56. Air is passed from the circumference of extension sections 58 and 59 or through them to form alternate flow channels for changing effective characteristics of the filter.

Description

  The present invention relates to a smoking article. In particular, the present invention relates to a smoking article having a variable filter.

  From the following Patent Document 1, a stretchable cigarette is known. The cigarette is slidable by a tobacco rod that is slidable within a tube having a filter at the mouth end. The tobacco rod can be slid within the tube to change the size of the internal chamber.

US Pat. No. 2,820,462

  An object of the present invention is to provide a smoking article having a filter whose structure can be changed.

  The present invention is a smoking article comprising a first part including a smoking material and a second part having at least an end portion configured to be movable relative to the first part, the second part including a filter. The smoking article is configured such that the position of the first part relative to the second part determines the characteristics of the filter of the smoking article.

  Therefore, the smoking article of the present invention has a filter that allows the user to change the structure.

  For purposes of illustration only, aspects of the present invention are described in detail below with reference to the accompanying drawings.

It is a perspective view of the smoking article of a 1st aspect. It is a sectional side view of the smoking article of FIG. 1 in the stored state. It is a sectional side view of the smoking article of FIG. 1 in the stretched state. It is a perspective view of the smoking article of the 2nd aspect by this invention formed in the incomplete state. It is a sectional side view of the smoking article of the 3rd mode. It is a schematic perspective view of the smoking article of the 4th aspect of the stored state. FIG. 6b is a schematic perspective view of the smoking article of FIG. 6a in a stretched state. It is a schematic side view of the filter setting mechanism of the smoking article of the 1st aspect of the stored state. FIG. 7b is a schematic side view of the filter setting mechanism of FIG. 7a in an incompletely stretched state. FIG. 7b is a schematic side view of the filter setting mechanism of FIG. 7a in a stretched state. FIG. 7b is a perspective view of the filter setting mechanism of FIG. FIG. 7b is a perspective view of the filter setting mechanism of FIG. 7a of the first embodiment in a stretched state. It is a schematic side view of the filter setting mechanism of the 2nd aspect of the stored state. It is a schematic side view of the filter setting mechanism of the 2nd aspect in the incomplete extending | stretching state. It is a schematic side view of the filter setting mechanism of the 2nd aspect of the extended state. FIG. 9b is a perspective view of the filter setting mechanism of the second embodiment of FIG. 9a in the retracted state. FIG. 9b is a perspective view of the filter setting mechanism of the second embodiment of FIG. 9a in a stretched state. It is a schematic side view of the filter setting mechanism of the 2nd aspect of the stored state. It is a schematic side view of the filter setting mechanism of the 3rd aspect of the stored state. It is a schematic side view of the filter setting mechanism of the 3rd aspect of the state extended | stretched.

  1 to 3 show a smoking article 10 of the first embodiment. The smoking article may be a smoking article such as a cigarette, cigar or cigarillo. For convenience, these are referred to herein as “smoking articles”. The smoking article 10 includes a first portion that includes a smoking material in the form of a tobacco rod 11 with a first filter section 12 mounted thereon. The tobacco rod 11 is attached to the first filter section 12 by a cover layer, preferably chipping paper.

  The second part of the smoking article includes a cylindrical sleeve 13 extending around the tobacco rod 11 and / or the first filter section 12. The tobacco rod 11 and the first filter section 12 are sized to slide in the longitudinal direction as a unit within the sleeve 13. The tobacco rod 11 and the first filter section 12 may be a tobacco unit.

  A second filter section 14 is located at the mouth end of the sleeve 13 away from the first filter section 12. The second filter section 14 is firmly fixed in the sleeve 13. The first and / or second filter sections 12, 14 are preferably made of conventionally used cellulose acetate tow.

  A chamber 15 is formed in the sleeve 13 between the first filter section 12 and the second filter section. The chamber 15 changes length and thus volume as the first filter section slides axially within the cylindrical sleeve 13. The length of the chamber 15 varies from zero to a predetermined maximum length. Thus, the end of the sleeve 13 distal to the smoking material is movable relative to the smoking material.

  The relative movement of the first part and the second part, i.e. the sleeve 13 and the tobacco rod 11, is limited by limiting means, preferably on the abutment surface on or adjacent to the tobacco rod 11 and sleeve 13, so that the maximum length is not exceeded. Is done. In particular, the restricting means includes a first engagement surface extending radially inward from the sleeve 13 that engages a second engagement surface extending radially outward from the tobacco unit. Is possible. The second engagement surface may be formed of a sheet material wound around the tobacco unit, particularly a material (for example, chipping paper) that connects the tobacco rod and the first filter.

  FIG. 2 shows the smoking article 10 in the retracted state with the tobacco rod 11 and the first filter section 12 moved to the second filter section 14. At this time, the length of the chamber 15 is zero. That is, the length of the smoking article 10 is the shortest. The smoking article 10 may be put in a package in this stored state before use. The smoking article 10 may be returned to the stored state after use once the tobacco rod 11 has been partially or completely burned.

  FIG. 3 shows the smoking article 10 in a stretched state in which the tobacco rod 11 and the first filter section 12 have moved as far away from the second filter section 14 as possible. The length of the chamber 15 extends to the maximum. And the length of the smoking article 10 is the longest. The smoking article 10 may be in a stretched state while being used. The tobacco rod 11 and the first filter section 12 can be continuously located in the sleeve 13 so as to assume an incompletely extended position halfway between the retracted state and the extended state.

  FIG. 4 shows the smoking article 20 of the second embodiment. The smoking article 20 includes a tubular cigarette 21 that is surrounded and attached to a sleeve 23 to form a tobacco rod. The tubular cigarette 21 does not move relative to the sleeve. The sleeve 23 has a section 23 a extending rearward of the cigarette 21. The filter 24 can slide in the longitudinal direction in the sleeve section 23a. A chamber 25 is formed between the cigarette 21 and the filter 24 by the tubular section 23a.

  The smoking article 20 functions in the same manner as the smoking article 10. The smoking article 20 is different in that the sleeve forming the chamber 25 is attached to the tobacco rod instead of the mouthpiece filter 24. The smoking article 20 also differs in that the filter 12 is not directly attached to the cigarette 21. Other aspects of the invention may have only one of these features or differences.

  The relative movement of the sleeve 23 and the filter 24 is prevented by the limiting means so as not to exceed the maximum length. Preferably, the limiting means includes first and second engaging surfaces located at or adjacent to the sleeve 23a and filter 24, respectively.

  FIG. 5 shows a smoking article 30 of the third aspect. The smoking article 30 has a structure similar to the embodiment of FIGS. 1 to 3 having a tobacco rod 31 attached to a filter 32. The tobacco rod 31 and the filter 32 are slidable within a sleeve 33 formed as a cylindrical tube. A stain binder 36 is provided at the suction end of the sleeve 33 instead of the second filter. The stain binder 36 removes substances that cause stains. A chamber 35 having a variable length is formed between the filter 32 and the stain binder 36.

  Figures 6a and 6b show a stretchable smoking article 40 of the fourth embodiment. The smoking article 40 includes a tobacco rod (not shown) attached to the first filter section 42. A sleeve 43 is attached to the first filter section 42. Located at the distal end of the sleeve 43 is a second filter section 44 which forms the mouth end. A chamber 45 is formed in the sleeve 43 between the first and second filter sections 42, 44.

  The sleeve 43 can be folded in a bellows fashion to change the length of the sleeve 43 and the chamber 45. The sleeve 43 has a plurality of sections with different diameters such that a fold line is formed with a maximum and minimum diameter line around the sleeve 43.

  In the retracted state shown in FIG. 6a, the first and second filter sections 42, 44 are pressed together so that the sleeve is compressed. The sleeve line of the sleeve 43 increases in angle and the segment of the sleeve 43 between the fold lines is oriented towards a plane perpendicular to the longitudinal axis of the smoking article. The length of the chamber 45 is relatively short.

  In the stretched state shown in FIG. 6b, the first and second filter sections 42, 44 have a reduced fold line angle of the sleeve 43 and the segment of the sleeve 43 between the fold lines is the longitudinal axis of the smoking article. To be oriented in a plane parallel to the. The length of the chamber 45 is relatively long.

  Therefore, the length of the chamber 45 can be changed without the need for a portion that slides on the bellows type sleeve 43. Accordingly, the end of the sleeve 43 located distal to the smoking material is movable with respect to the smoking material.

  Further, as shown in FIG. 6 b, the bending state of the smoking article 40 can be adjusted by the bellows type sleeve 43. The sleeve 43 may be angled or perpendicular to the longitudinal axis so that one or more of the fold lines of the sleeve 43 do not extend uniformly along the circumference. The sleeve 43 can be bent by changing the degree of stretching along the circumference of the sleeve 43. The longitudinal axis of the first filter section 42 is not coaxial with the longitudinal axis of the second filter section 44 when the sleeve 43 is bent.

  The tobacco rod and the filter attached to it have been described as being connected by chipping paper. The chipping paper may be standard chipping paper, chipping paper provided with a relatively thick recess, or cardboard type chipping paper. Moreover, you may use the pipe | tube formed with another material in order to mount | wear a smoking material with a filter material. In particular, the tube may be made of a plastic material such as plastic made of corn starch, for example. The tube may be made of a ceramic material. The tube may be foil, metal, or metal-worked paper.

  All of the above embodiments have been described as having a filter section at the mouth end adjacent to the tobacco rod. Alternatively, the smoking article of the present invention may not include a filter section.

  One or more of these filter sections may be formed of a single segment or multiple segments of filter material. A filter section formed of a plurality of segments may include segments made of different materials or materials having different filtration performance. In particular, the filter section may comprise a standard segment consisting of cellulose acetate tow and another segment consisting of filtration material containing charcoal. Alternatively, the filter section may consist of a single segment incorporating charcoal.

  The second filter is preferably formed to assist in suction or provide other benefits associated with perception and coloring patterns. The filter may be a pressed, molded or extruded acetate.

  In another aspect of the smoking article, the chamber may include a rose filter medium, which is retained by a second filter or suitable means so as not to exit the chamber. As such a filter material in a rose state, it is preferable to use granular carbon that becomes carbon particles in a rose state in the chamber.

  Figures 7 to 12b show three aspects of a smoking article filter setting mechanism for changing the filter structure. In particular, these embodiments have a filter characteristic that depends on the position of the first part relative to the second part, i.e. the position of the sleeve relative to the smoking material. In particular, the filter characteristics thus determined are the effective filter length, the filter strength or the filter position within the sleeve. Any of these filter setting mechanism embodiments may be used for all of the smoking articles of the embodiments described in FIGS.

  7a to 8b show a filter setting mechanism in the smoking article 50 of the first aspect. The smoking article 50 includes a chamber 55 that varies in length substantially as described in any of the above aspects. The smoking article 50 includes a tobacco unit 51 that includes only a tobacco rod and a first filter as described in FIGS. 1-3 or 5-6b or a tobacco rod as described in FIG. The tobacco rod 51 is movable at least with respect to the mouth end of the sleeve 53. The chamber 55 is formed between the tobacco unit 51 and the filter or stain binder 54. The filter or stain binder 54 is a filter 54.

  The filter 54 is connected to the sleeve 53 by aggregates 58 and 59 having different lengths. The aggregates 58 and 59 move the filter 54 in the longitudinal direction with respect to the sleeve 53. Further, the aggregates 58 and 59 seal the suction ends of the filter 54 and the sleeve 53.

  The assemblies 58, 59 are preferably stretchable and include in particular first and second stretch sections 58, 59. The first extending section 58 is attached to the inner surface adjacent to the mouth end of the sleeve 53. The first extending section 58 has a cylindrical shape. The second extending section 59 slides within the first extending section 58. The second extending section 59 has a cylindrical shape with a smaller diameter than the first extending section 58.

  The first and second extending sections 58 and 59 are provided with means for restricting their relative movement, and the joining of the second extending section 59 and the first extending section 58 is maintained. The first extension section 58 includes a radially inwardly extending flange adjacent the end away from the mouth end. The second extension section 59 includes a flange extending radially outwardly adjacent an end near the mouth end. The flanges engage each other to hold the first and second extending sections 58, 59 together.

  The filter 54 is slidable in the longitudinal direction within the second extending section 59. The second extending section 59 and the filter 54 are provided with means for limiting their relative movement, and the bonding between the filter 54 and the second extending section 59 is maintained. The second extending section 59 includes a radially inwardly extending flange adjacent the end remote from the mouth end. Filter 54 includes a flange extending radially outwardly adjacent an end near the mouth end. The flanges engage with each other and hold with the filter 54 and the second stretched section 59.

  The first and second extending sections 58, 59 are preferably formed from a permeable material. With these sections incomplete or fully extended, smoke or air passes through the first and second extended sections 58, 59 and bypasses the filter 54. The air permeable material may be acetate and can be formed around the mandrel with a relatively large amount of plasticizer.

  A long support 57 having elasticity is located in the chamber 55. The support 57 has a first end that is attached to the cigarette unit 51. The support 57 also has a second end attached to the filter 54. The support 57 is preferably thread-like.

  The tobacco unit 53 moves away from the mouth end of the sleeve 53 from the stored state shown in FIG. 7a to the incompletely extended state shown in FIG. 7b and to the extended state shown in FIG. 7c. be able to. In the illustrated embodiment, the sleeve 53 is a tube that can slide around the cigarette unit 51.

  The filter 54 is attached to the cigarette unit 51 with a base material 57. The support 57 is in a relaxed state when the smoking article is in the retracted state. As the smoking article is stretched, the filter 54 is pulled by the support 57 away from the mouth end of the sleeve 53. When the filter 54 is pulled by the tobacco unit 51, a recess 56 is formed at the mouth end of the sleeve 53. This indentation 56 imparts different characteristics to the smoking article during use compared to when there is no such indentation 56. Therefore, the characteristics of the filter position within the sleeve are determined by the relative position between the smoking material and the sleeve.

  FIG. 7 b shows that when the support 57 is pulled, the filter 54 and the second stretching section 59 move together in the first stretching section 58. When the second extension section 59 reaches the maximum extension position in the first extension section 59, the filter 54 slides like a telescope from the second extension section 59. Alternatively, the filter 54 may first move in the second stretching section 59 and then the second stretching section 59 may move in the first stretching section 58. Alternatively, the filter 54 and the first and second extending sections 58 and 59 may all slide simultaneously. When the filter 54 reaches its maximum longitudinal extension position, the support 57 prevents the tobacco unit 51 from moving further relative to the sleeve 53.

  FIG. 8a shows the smoking article 50 in the stored state. The first and second extending sections 58, 59 and the filter 54 are aligned with the mouth end of the sleeve 53. FIG. 8b shows the smoking article 50 in the stretched state. By moving the cigarette unit 51, the filter 54 is pulled away from the end of the sleeve, forming a recess 56. Air passes around or through the stretching sections 58, 59, forming staggered channels that alter the effective properties of the filter.

  9a to 11 show the filter setting mechanism of the smoking article 70 of the second aspect. The smoking article 70 includes a tobacco unit 71 that includes a tobacco rod and a first filter 74 as described with reference to FIGS. 1 to 3 or 5 to 6b. The tobacco rod 71 is movable with respect to the sleeve 73. The smoking article 70 does not include additional filters that are spaced apart in the longitudinal direction of the second filter to form the chamber.

  The smoking article 70 includes a tobacco unit 71 that includes a filter 74. The filter 74 has a smaller diameter than the tobacco rod to which it is attached. The filter 74 is a single filter unit that is rigidly joined or attached to the tobacco rod.

  The sleeve 73 includes an annular ring 77. The ring 77 may be made of a filter material, or may be made of a solid non-porous material. A ring 77 surrounds the filter 74 and preferably forms a slip fit around the filter 74.

  FIG. 9a shows the smoking article 70 in the retracted state. The ring 77 is in contact with the tobacco rod. Since there is no alternative path between the tobacco rod and the mouth end of the sleeve 73, the effective length of the filter 74 is its full length.

  The sleeve 73 includes a rib 79a that forms part of the marking means. This marking means will be described in detail with reference to FIG.

  FIG. 9b shows the smoking article 70 in an incompletely stretched state. The filter 74 partially protrudes from the ring 77. An annular path 78 is formed around the portion of the filter 74 that protrudes longitudinally from the ring 77. This annular path 78 allows the material to flow freely. A recess 76 is formed at the mouth end of the sleeve 77. The effective length of the filter 74 is shorter than the stored state. In this state, an alternative path is formed from the tobacco rod that bypasses a portion of the filter via path 78 to the end of the sleeve. Normally, the air flows along the entire length of the path 78 before entering the filter 74 and flows into the recess 76.

  FIG. 9c shows the smoking article 70 in the stretched state. Most of the length of the filter 74 projects from the ring 77. However, part of the filter remains in the ring. Both the path 78 and the recess 76 have a maximum length. Since the path 78 provides an alternative path that bypasses most of the filter 74, the effective length of the filter 74 is the shortest.

  The smoking article 70 provides a filter 74 that can vary the effective length. As the cigarette unit 71 moves in the longitudinal direction within the sleeve 73, the length of the path 78 surrounding the filter 74 changes. Changes in the length of the smoking article adjust the effective length of the filter 74, which is done by the user. The effective length of the filter 74 determines the strength of the smoking article.

  Figures 10a and 10b show the smoking article in the retracted and stretched state, respectively. In the retracted state, the filter 74 extends to the end of the smoking article. In the stretched state, the filter 74 moves relative to the sleeve and forms a recess 76.

  The smoking article 70 includes a filter whose effective length changes. The filter section 74 can be positioned within the smaller diameter section so that the portion within the smaller diameter section contributes to the effective length of the filter. The filter section 74 is movable to a larger diameter section, and the portion within this larger diameter section does not contribute to the effective length of the filter. The movement of the filter section from the smaller diameter section to the larger diameter section is directly linked to the extension of the smoking article 70. The smaller diameter section is adjacent to the mouth end of the sleeve, and the larger diameter section is located between the smaller diameter section and the tobacco unit. The effective length is changed (shortened) by extending the smoking article 70. Thus, the effective length characteristic of the filter is determined by the relative position between the smoking material and the sleeve. The user can adjust the intensity of the taste of the smoking article by selecting the degree of stretch of the smoking article and thus by selecting the effective filter length.

  FIG. 11 shows the marking means for smoking articles. A predetermined degree of stretching in the longitudinal direction of the smoking article can be selected by this marking means.

  The sleeve 73 is provided with a plurality of ribs 79a. Preferably, the sleeve includes three ribs 79a. These ribs 79 a may be annular or may extend only over a portion of the circumference of the sleeve 73. Each of the ribs 79 a forms a recess on the inner surface of the sleeve 73.

  The cigarette unit 71 is provided with a protrusion 79b. The protrusion 79b may extend along the circumference of the tobacco unit, or may extend only along a part of the circumference. The protrusion 79b is configured to engage with a recess in the rib 79a to form mark means. The protrusion 79b engages the recess at three extending stages of the smoking article 70 corresponding to the illustrated retracted state, the incompletely stretched state, and the stretched state.

  The protrusion 79b and / or the sleeve 73 can be elastically deformed so that the protrusion 79 can move between the recesses of the rib 79a. The protrusion 79b extends into the selected depression, thereby preventing further movement of the protrusion and indicating that it has reached a landmark position.

  The ribs 79a and / or protrusions 79b may be provided with some markings to indicate the position of the protrusions 79b and thus the strength of the smoking article. In particular, the ribs 79a may each form a window and the protrusion may have a colored mark that is visible from the corresponding window.

  Of course, other types of marking means may be used, and the smoking article 70 may not have the marking means. In particular, the marking means may include a plurality of ribs 79a and a plurality of protrusions 79b, or may include one rib 79a and a plurality of protrusions 79b. Alternatively, the protrusion 79b may be formed on the inner surface of the sleeve, and one or more depressions may be provided in the tobacco unit.

  12a and 12b show the filter setting mechanism of the smoking article 80 of the third embodiment. The smoking article 80 includes a chamber 85 that varies in length substantially as described in any of the above aspects. The smoking article 80 includes a tobacco unit 51 that includes only a tobacco rod and a first filter as described in FIGS. 1-3 or 5-6b or a tobacco rod as described in FIG. The tobacco rod 81 is movable at least with respect to the mouth end of the sleeve 83. The chamber 85 is formed between the tobacco unit 81 and the filter assembly 84.

  The filter 84 includes a plurality of filter segments 89a, 89b, 89c. The filter segments 89a, 89b, 89c are preferably connected by a long elastic support 88 in the form of a thread. The elastic support is connected to the cigarette unit 81. Part of the elastic support is such that the filter segments 89a, 89b, 89c are spaced apart from each other in the longitudinal direction, and a space is formed between the filter segments 89a, 89b, 89c. , 89c. These segments are connected to the smoking material by a long elastic support.

  The sleeve 83 further includes an annular ring 87 on the inner surface adjacent to the mouth end. The ring 87 may be made of a filter material or may be made of a solid non-porous material. The ring 87 surrounds the filter assembly 84, and the inner surface of the ring 87 forms a slip fit around the filter assembly 84.

  The chamber 85 has a larger diameter than the inner surface of the ring 87. Thus, the chamber 85 has a larger diameter than the filter segments 89a, 89b, 89c.

  FIG. 12a shows the smoking article 80 in a stored or incompletely stretched state. The filter segments 89a, 89b, 89c are all located in the ring 87. Accordingly, the effective length of the filter 84 is the sum of all the filter segments 89a, 89b, 89c forming the filter. Preferably, the support 88 is pulled between the filter segments 89a, 89b, 89c such that the filter segments 89a, 89b, 89c are spaced apart in the ring 87. Alternatively, the filter segments 89a, 89b, 89c may initially abut each other in the ring 87. The support 88 connecting the filter segments 89a, 89b, 89c may be loose.

  FIG. 12b shows the smoking article 80 in a further stretched state. The cigarette unit 81 slides in the longitudinal direction so as to be away from the mouth end of the sleeve 83. The support 88 connected to the cigarette unit 81 is pulled forward so as to be away from the mouth end of the sleeve 83. The filter segment 89 a closer to the tobacco unit 81 is located in the chamber 85 outside the ring 87. The filter segments 89b and 89c are still in the ring 87.

  The effective length of the filter 84 is the length of the filter segments 89 b and 89 c in the ring 87. The filter segment 89a outside the ring 87 does not contribute to the effective length of the filter because air can flow around the filter segment 89a in the chamber 85. The pulled support 88 suspends the filter segment 89a away from the chamber wall and forms a path around the filter section 89a.

  The smoking article 80 can be further extended so that only one filter segment 89c remains in the ring. In this case, the effective length of the filter is only the length of the filter segment 89c. Optionally, the smoking article may be further stretched so that none of the filter segments 89a, 89b, 89c remain in the ring, and therefore the filter 84 is ineffective.

  The smoking article 80 includes a filter that can change the effective length. The individual filter segments 89a, 89b, 89c can be located in a section with a small radius so that these filter segments contribute to the effective length of the filter. These filter segments can be moved into large diameter sections so that they contribute to the effective length of the filter. The movement of the filter segment from the smaller diameter section to the larger diameter section is linked to the stretching of the smoking article 80. The smaller diameter section is adjacent to the mouth end of the sleeve, and the larger diameter section is located between the smaller diameter section and the tobacco unit. The effective length of the filter can be changed (shortened) by stretching the smoking article 80.

  Therefore, the effective length characteristic of the filter is determined by the relative position of the smoking material and the sleeve. The user can adjust the strength of the smoking article by selecting the degree of stretching and thus the effective length of the filter.

  The term “diameter” herein is used to describe the lateral extent of the appearance of various aspects of a smoking article. Preferably, the smoking article of the present invention has a circular cross section suitable for the term “diameter”. Alternatively, the appearance of the smoking article according to the present invention may have a non-circular cross-section such as an ellipse or a rectangle. Reference to “diameter” should be interpreted as a lateral range as necessary.

  The path described above may extend along the entire circumference of the filter section or segment, or only along a portion of the circumference.

  The smoking article according to any of the above aspects may further contain a flavoring agent source. In this case, the flavor may be released as the first part moves relative to the second part, or may be released by another action. The flavor source may be any flavor, such as menthol. The flavor source may be in the filter. The smoking article of the present invention can change the filter characteristics (particularly the effective filter length). The level or intensity of the flavor may be changed by changing this filter characteristic.

  In use, all of the above-described smoking articles are preferably packaged in a stored state. In use, the user extends the smoking article by forcing the sleeve and tobacco unit apart at least in the longitudinal direction. And the user ignites the cigarette as usual. The length of the chamber and / or the degree of stretching is utilized to change the properties of the smoking article.

  To extinguish a smoking article, the user need only press the fired tobacco end against any suitable fire extinguishing surface. If the user has a sleeve to extinguish the cigarette, the tobacco unit is pushed into the sleeve along the longitudinal axis until the remaining tobacco unit is hidden by the sleeve. The burnt tobacco rod is therefore not visible from the side of the extinguished smoking article.

  All features of all aspects described above can be combined with features of other aspects. In particular, any aspect of the smoking article may or may not include a filter section adjacent to the tobacco cylinder.

  The smoking article of the present invention has been described as freely stretchable. Apart from this, the overall length of the smoking article may be fixed. The first part may be rotatable only with respect to the second part. The characteristics of the filter may be selected by rotating the sleeve without changing the length of the smoking article.

Claims (18)

A first portion including smoking material;
A smoking article comprising a second part having at least one end configured to be movable relative to the first part,
The second portion includes a filter;
A smoking article configured such that the position of the first part relative to the second part determines the filter characteristics of the smoking article.   The second portion includes a sleeve, and the filter is coupled to the sleeve, or the first portion includes a sleeve, and the second portion includes the filter movable with respect to the sleeve. The smoking article according to claim 1.   The smoking article of claim 1 or 2, wherein the smoking article is extensible and the second portion has a distal end configured to move longitudinally relative to the first portion. Goods.   4. A smoking article according to claim 1, 2 or 3, wherein the effective length of the filter is determined by the position of the first part relative to the second part.   5. A smoking article according to claim 4, wherein a path is formed to allow air to flow around a selected portion of the filter, the selected portion not contributing to the effective length of the filter.   The sleeve forms a first section having a first cross-sectional area and a second section having a second cross-sectional area that is larger than the first cross-sectional area, and a filter extending through the first section is within the first cross-sectional area. The smoking article according to claim 2, wherein the path is formed around a part of the filter in the second section.   The smoking article of claim 6, wherein the first section has substantially the same length as the filter.   The smoking article according to any one of claims 1 to 4, wherein the filter is firmly connected to the smoking material.   The smoking article according to any one of claims 1 to 4, wherein the filter includes a plurality of separable segments.   The smoking article according to claim 9, wherein the plurality of filter segments are connected to each other with a long flexible support.   The smoking article according to any one of claims 1 to 4, wherein the filter is attached to the second portion by a stretchable assembly.   The smoking article according to claim 11, wherein the stretchable assembly includes a stretched section formed of a permeable material.   10. The filter is connected to the first part so that the filter can move with the first part over at least a part of a movement range of the first part relative to the second part. Thru | or any one of 12 smoking goods.   The smoking article according to any one of claims 9 to 12, wherein the filter is connected to the first portion by a long flexible support.   The smoking article according to any one of claims 1 to 14, further comprising mark means for releasably fixing the first part and the second part to a plurality of predetermined relative positions.   The smoking article according to claim 2, wherein the second portion includes a sleeve, the sleeve is formed in a cylindrical shape, and is slidable in the longitudinal direction around the smoking material.   The smoking article according to claim 2, wherein the second portion includes a sleeve, and the sleeve is formed in a bellows shape.   The smoking article according to any one of claims 1 to 17, further comprising a flavor source, the level of which depends on the filtration level of the smoking article.

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