201134408 六、發明說明： • 【發明所屬之技術領域】 ' 本發明係有關一種具有碳熱源之吸煙物品。 【先前技術】 已知有一種在前端具有碳熱源，且利用從碳熱源產生 之熱對吸香味產生源進行加熱之吸煙物品（參照例如專利 文獻1 )。亦記載於專利文獻1之吸煙物品中，碳熱源係 具有玻璃鼓（glass mat)等隔熱套，利用該隔熱套之彈性 來保持前端之碳熱源。在該保持方法中，由於使用玻璃氈 等隔熱套，因此耗費成本，亦需要以玻璃氈將熱源捲起之 步驟。此外，亦可能發生因碳熱源被隔熱套所包覆而造成 點火性劣化等問題。 此外，在專利文獻2中揭示有一種方法，係藉由具有 外部套筒及内部套筒，且在内部套筒設置倒鉤，而以套筒 之彈性保持熱源之端面。然而，專利文獻2之吸煙物品的 構造複雜。如此，雖提案有一種碳熱源之保持方法，但必 須確實地進行保持，俾碳熱源不會在抽吸中從前端脫落。 (先前技術文獻） (專利文獻） (專利文獻1):國際公開第2007/119678號 (專利文獻2):日本特許第3〇12253號公報 【發明内容】 (發明所欲解決之課題） 本發明係考慮上述習知技術而研創者，其目的在於提 3 321946 201134408 供一種吸煙物品，其係無須另外使用玻璃氈等隔熱套，即 可有效率且確實地保持碳熱源，且謀求零件數之删減、組 裝步驟數之冊i減及低成本化。 (解決課題的手段） ^為了達成前述目的，本發明提供一種吸煙物品，其特 有多層構造之管構件，包含至少各—層金属製之 二內’ ΐ:氏製之紙層；碳熱源，配置在該管構件之-方端 點火而發i 了接密接於前述管構件之内面’且藉由 述管構件内、:卿=二前述碳熱源而配置在前 觸’以使前述碳熱源對著前二=述碳熱源直接接 前述保持部較佳疋;^而保持。 而形成之周方向突起。〜、月内面突出且朝周方向連續 别述保持部較佳為且 前述保持部較^朝内面犬出之複數個突起。 形成之複數個轴方向突起有朝内面突出且沿著轴方向而 前述保持部較 姆前述碳熱源較佳為具有有m内^折回之折回部。 槽。 有與則述周方向突起嵌合之周 較佳為復具有. 方向的貫通孔;及貫= 與前述碳熱源之轴方向交叉之 孔的銷。 持部，並且插人於前述μ 較佳為對前述嫂熱源 較佳A罝古μ 7卸進灯螺紋加工。 有“•持部之⑽大之相’㈣入於 ^21946 4 201134408 前述保持部。 月1j述兔熱源較佳為具有朝壓入方向變得尖細之錐面。 較佳為復具有透過外層紙(tip paper)連接於前述管構 件之濾材。 (發明之效果） 依據本發明，碳熱源係直接保持在屬於管構件之端部 的保=部。因此’可使碳熱源之直徑比以往大，而可使點 火性提升。此外，&了保持碳熱源，無須另外使用玻璃敦 等隔熱套（雜構件）。目此’可賴零件數及組裝步驟 數’以提向作業之效率。此外’可謀求低成本化。 此外’藉由在保持部形成周方向突起，即可一面按壓 碳熱源’一面確實地加以保持。 再者藉由在保持。卩形成複數個突起、例如形成複數 個軸方向突起’即可確實地保持碳熱源。 再者利用將保持部之前端折回於内侧之折回部而可 -面按壓碳熱源，-面確實地將碳熱源予以保持。 ⑽梓卜藉^在讀源形成周槽且將财向突起嵌合在 該周槽’即可更進-步提高保持之確實性。 再者，即使利用銷使貫通保持部，且進-步使該銷插 實性。 亦可更進-步提高保持之確 此外，即使對碳熱源進行嫁 高保持之確實性。 亦可更進一步提 而且，藉由將碳熱源之外後作成比保持部之内徑大’ 321946 5 201134408 亦可使ί厌熱源壓入於保持部並確實地予以保持。此時，藉 由在碳熱源設置錐面，可使壓力之作業性提升，並能有效 率地予以保持。 【實施方式】 如第1圖所示，本發明之吸煙物品丨係含有煙草棒3。 煙草棒3係具有碳熱源4、吸香味產生源8及非可燃性包 材（管構件）9。煙草棒3係與濾材2排列在一方向而配置。 濾材2係位於吸口側。在圖之例中，濾材2係顯示由普通 濾材組件2a及炭濾材組件2b所構成之雙濾材。然而，濾 材2並不限定於上述構造者。普通濾材組件2a係以捲取紙 6包覆濾材纖維5而形成。炭濾材組件2b係以捲取紙6包 覆包3活性石厌之濾、材纖維7而形成。此外，遽材2雖復由 成形紙所包覆，但省略圖示。煙草棒3係以非可燃性包材 9包覆包含煙草絲之吸香味產生源8所形成。亦即，非可 燃性包材9係形成為中空圓筒形狀，且在其内側填充有吸 香味產生源8，具體而言係填充含有甘油之薄片煙草及去 骨煙草絲。在圖例中，在煙草棒3與濾材2之間配置有中 間棒10。中間棒10係將煙草絲12包覆於捲紙u而形成。 亦即，捲紙11係形成為中空圓筒形狀，且在其内側填充有 煙草絲12，具體而言係填充有香料及去骨煙草絲。煙草棒 3係透過外層紙13與濾材2及中間棒1〇連接。 在非可燃性包材9之端部形成有保持部14。具體而 言，非可燃性包材9係如第2圖所示，在2層複合材15 之外側貼合有3層複合材16而形成。並且，保持部μ係 321946 6 201134408 使3層複合材16比2層複合材15更延長而形成。2層複 • 合材15係由位於内側之金屬製（例如鋁製）之鋁層17、 - 及位於外側之紙製的紙層18所形成。3層複合材16係從 内側重疊紙層18、鋁層17、紙層18而形成。由於非可燃 性包材9之最内側的層係為鋁層17，因此即使在抽吸時煙 草絲之溫度上昇，亦因鋁層17而被隔熱不會有非可燃性包 材9被加熱之情形。此外，藉由鋁層17容易傳熱，而可有 效率地對吸香味產生源8進行加熱。因此，鋁層17係只要 為使用具隔熱性及熱傳導性之材料者，亦可使用任何材質 者來形成。 碳熱源4係直接密接於保持部14而被保持。如此， 藉由以保持部14直接密接而保持，則不需要用以保持碳熱 源4之玻璃氈等保持構件。因此可刪減零件數及組裝步驟 數，以提高作業之效率。此外，亦可謀求低成本化。再者， 由於形成保持部14之3層複合材16亦具有鋁層17，因此 不會有保持部14因從碳熱源4產生之熱被加熱而消失之情 形。 以保持部14進行之碳熱源4的保持係能以下述方式 進行。 ， 第3圖係在保持部14設置周方向突起19之例。周方 向突起19係朝保持部14之内面突出，且在周方向連續地 形成。如此，藉由在保持部14形成周方向突起19，而使 碳熱源4密接於非可燃性包材9，且保持部14與碳熱源4 會直接地彼此卡合，而可確實地予以保持。此外，在第3 7 321946 201134408 圖之例中，由於形成周方向突起19,因此以對應於周方向 突起19之方式從保持部之外周設置周槽20。亦即，在形 成周槽20之同時’亦形成周方向突起19。此外，在保持 碳熱源4之際，亦可將碳熱源4插入保持部14，並從外側 推壓，在形成周槽20之同時，形成周方向突起19並予以 保持，亦可預先形成周方向突起19，將碳熱源4壓入於該 周方向突起19。關於該保持之順序，下述之第4圖及第5 圖之例亦同。 第4圖係在保持部14之内面設置複數個突起21之 例。亦藉由該突起21使碳熱源4密接於非可燃性包材9， 且保持部I4與碳熱源4會直接地彼此卡合，而可確實地予 以保持。此外，第5圖係在保持部14設置軸方向突起22 ^例。該轴方向突起22係朝保持部14之内面突出，且沿 著軸方向而形成者。藉此，可更確實地保持碳熱源4。另 一方面’如第6圖所示，亦可將仅姑 Μ “持之别端折回於内側， 4成折回。Ρ 23。此時，係利用折回部^ 碳熱源4密接於非可燃性包材9，且㈣# \ 會直接地彼此卡合，而可確實地予㈣持 厌，，，、 此外，如第7圖所示，亦可將嵌人於 19之周槽24設置在碳熱源4 口、迷周方向大起 槽20會嵌合，而可使碳 b，周方向突起19與周 部Η之外’復藉由亦對碳熱源：:確實。這是除了保持 :保持之確實性者。就對碳:工工而更進-步： 第8圖所示，亦可在碳熱源4設置^之例而言，如 又置貫通孔25，並將銷26 321946 8 201134408 :==:1此時’銷26係貫通保持部14。具體而 im、貝通保持部’並且進—步將該銷26插入 二邱1二、源4之貫通孔25。如此，即使利用銷26使 保持部14與碳叛源4 ^ ‘、、、原4間接地彼此卡合，並保持碳熱源4， ’、可f *地提升保持之綠實性。再者，如第9圖所示， 亦可=碳熱源4之周面進行螺紋加卫，而設置螺紋部27。 藉此亦可提升保持之確實性。 徑大而壓入。較佳免1结 ▲ 馮如第10圖所示，，對碳熱源4設置朝壓 入^向變付=細之錐面28。藉此，提升壓人時之作業性’ 使炭⑧、接於非可燃性包材9，且保持部Μ與碳熱源 4會直接地彼此卡合，而可實財實之保持。 在述第3圖中顯示形成周槽20之例’而使用設有 s = a上可燃性包材與未設有周槽之非可燃性包材’來 進行比較實驗。非可螞性包材係使用長度50mm、内徑 1 …者就叹有周槽之非可燃性包材而言，周槽之深度 係又為mm，周方向突起部分之内徑係設為7 〇mm。此 外’碳熱源4係使用外徑7 —至7 3_、長度1〇_者。 利二上述構件’將碳熱源相對於非可祕包材插入5mm， 並f裝;製作吸煙物心在預定條件下對該吸煙物品 ，行，煙卩2〇〇gf之力施予1〇次撞擊打’以調查碳熱源 =否落下#對各吸煙物品之2Q根，分別調查碳熱源是否 落下。在使用未設置周槽之非可燃性包材時，在2G根之全 邠吸煙物°°中，碳熱源皆落下。在使用設置周槽且設有周 321946 9 201134408 方向突起之非可燃性包材時，在20根之全部吸煙物品中， 碳熱源皆被保持原樣。因此，由實驗確認出，本發明之吸 煙物品係對於碳熱源之保持為有效者。此外，調查前述碳 熱源之有無落下的試驗係使用保持濾材側且以此為支點使 吸煙物品轉動並可反覆進行前端之揮上及揮下之試驗機。 在揮下時使吸煙物品之前端與承受該前端之承受構件碰 撞。具體而言，係使用日本特許第3048036號公報記載之 試驗機。 【圖式簡單說明】 第1圖係本發明之吸煙物品的概略剖面圖。 第2圖係第1圖之A部放大圖。 第3圖係保持本發明之吸煙物品之碳熱源的部位之概 略剖面圖。 第4圖係保持本發明之另一吸煙物品之碳熱源的部位 之概略剖面圖。 第5圖係保持本發明之又一吸煙物品之碳熱源的部位 之概略剖面圖。 第6圖係保持本發明之又一吸煙物品之碳熱源的部位 之概略剖面圖。 第7圖係保持本發明之又一吸煙物品之碳熱源的部位 之概略剖面圖。 第8圖係保持本發明之又一吸煙物品之碳熱源的部位 之概略剖面圖。 第9圖係保持本發明之又一吸煙物品之碳熱源的部位 10 321946 201134408 之概略剖面圖。 ^ 第ίο圖係保持本發明之又一吸煙物品之碳熱源的部 - 位之概略剖面圖。 【主要元件符號說明】 1 吸煙物品 2 濾材 2a 普通濾材 2b 炭遽材 3 煙草棒 4 碳熱源 5 濾材纖維 6 捲取紙 7 包含活性碳之濾材纖維 8 吸香味產生源 9 非可燃性包材（管構件） 10 中間棒 11 捲紙 12 煙草絲 13 外層紙 14 保持部 15 2層複合材 16 3層複合材 17 is層 18 紙層 19 周方向突起 20 周槽 21 突起 22 軸方向突起 23 折回部 24 周槽 25 貫通孔 26 銷 27 螺紋部 28 錐面 11 321946201134408 VI. Description of the invention: • [Technical field to which the invention pertains] ' The present invention relates to a smoking article having a carbon heat source. [Prior Art] A smoking article having a carbon heat source at the tip end and heating the flavor generating source by heat generated from a carbon heat source is known (see, for example, Patent Document 1). Also described in the smoking article of Patent Document 1, the carbon heat source has a heat insulating sleeve such as a glass mat, and the carbon heat source of the front end is held by the elasticity of the heat insulating sleeve. In this holding method, since a heat insulating jacket such as a glass mat is used, it is costly, and a step of winding up the heat source with a glass mat is also required. In addition, problems such as deterioration of ignitability due to the carbon heat source being covered by the heat insulating sleeve may occur. Further, Patent Document 2 discloses a method in which an end face of a heat source is held by elasticity of a sleeve by having an outer sleeve and an inner sleeve and providing a barb in the inner sleeve. However, the construction of the smoking article of Patent Document 2 is complicated. Thus, although a method of holding a carbon heat source has been proposed, it must be reliably maintained, and the carbon heat source does not fall off from the front end during suction. (Prior Art Document) (Patent Document 1): International Publication No. 2007/119678 (Patent Document 2): Japanese Patent No. 3, 222, 253, the disclosure of the present invention. Based on the above-mentioned conventional techniques, the researcher aims to provide 3 321946 201134408 for a smoking article, which can efficiently and surely maintain the carbon heat source without using a separate insulating cover such as glass mat, and seek for the number of parts. The number of reductions and assembly steps is reduced and the cost is reduced. (Means for Solving the Problem) ^ In order to achieve the above object, the present invention provides a smoking article, which has a tubular member of a multi-layered structure, comprising at least two layers of a metal layer made of a metal layer; a carbon heat source, configured Ignite at the square end of the pipe member and contact the inner surface of the pipe member and disposed in the front member by the carbon heat source in the pipe member to make the carbon heat source facing The first two = the carbon heat source is directly connected to the holding portion, and is maintained. The circumferential direction is formed. ~, the inner surface of the moon is continuous and continuous in the circumferential direction. It is preferable that the holding portion is a plurality of protrusions that are in the inner surface of the holding portion. The plurality of axially-oriented protrusions are formed to protrude toward the inner surface and extend along the axial direction. Preferably, the heat-receiving portion has a folded-back portion having a m-back. groove. The circumference which is fitted to the projection in the circumferential direction is preferably a through hole having a direction in which the direction is formed, and a pin having a hole which intersects with the axial direction of the carbon heat source. The holding portion is inserted into the aforementioned μ, preferably for the aforementioned heat source. There is a "the middle part of the (10) big phase" (four) into the above-mentioned holding part of ^21946 4 201134408. The heat source of the rabbit is preferably a tapered surface which becomes tapered toward the pressing direction. A tip paper is connected to the filter material of the pipe member. (Effect of the Invention) According to the present invention, the carbon heat source is directly held at the end portion belonging to the end portion of the pipe member. Therefore, the diameter of the carbon heat source can be made larger than ever. In addition, the ignitability can be improved. In addition, it is not necessary to use a heat insulating sleeve (miscellaneous member) such as Glasstown to maintain the carbon heat source. The efficiency of the work can be improved by the number of parts and the number of assembly steps. In addition, the cost can be reduced. In addition, by forming the circumferential projections in the holding portion, the carbon heat source can be pressed while being held. Further, a plurality of protrusions are formed by holding the plurality of protrusions, for example, a plurality of protrusions are formed. The carbon source can be reliably held by the protrusion in the axial direction. Further, the carbon heat source can be pressed to the surface by folding the front end of the holding portion back to the inner side, and the surface is surely held by the carbon heat source. (10) When the source is formed into a circumferential groove and the fiscal projection is fitted in the circumferential groove, the reliability of the holding can be further improved. Further, even if the pin is passed through the holding portion, the pin is inserted in a stepwise manner. In addition, it is possible to further improve the retention. In addition, even if the carbon heat source is used to maintain the reliability of the marriage, it can be further raised and made by the carbon heat source to be larger than the inner diameter of the holding portion. In the case of the carbon heat source, the taper surface can be used to improve the workability of the pressure and can be efficiently held. As shown in Fig. 1, the smoking article of the present invention contains a tobacco rod 3. The tobacco rod 3 has a carbon heat source 4, a flavor generating source 8, and a non-combustible packaging material (tube member) 9. The tobacco rod 3 is combined with The filter medium 2 is disposed in one direction. The filter medium 2 is located on the side of the suction port. In the example of the figure, the filter medium 2 is a double filter material composed of the common filter element assembly 2a and the carbon filter unit 2b. However, the filter medium 2 is not limited to The above constructor. Ordinary filter material assembly 2a The winding paper 6 is formed by coating the filter fiber 5. The carbon filter unit 2b is formed by wrapping the filter paper 6 with the filter paper 6 and the material fiber 7. The coffin 2 is covered by the forming paper. The tobacco rod 3 is formed by coating a non-combustible packaging material 9 with a non-combustible packaging material 9 to form a suction flavor generating source 8. That is, the non-combustible packaging material 9 is formed into a hollow cylindrical shape, and The inside of the inside is filled with the flavor generating source 8, specifically, the sheet tobacco containing glycerin and the boneless tobacco yarn. In the illustrated example, the intermediate rod 10 is disposed between the tobacco rod 3 and the filter medium 2. The intermediate rod 10 is The tobacco sheet 12 is formed by coating the roll paper u. That is, the roll paper 11 is formed into a hollow cylindrical shape, and is filled with tobacco yarn 12 on the inner side thereof, specifically, a flavor and a boneless tobacco yarn. The tobacco rod 3 is connected to the filter medium 2 and the intermediate rod 1 through the outer paper 13. A holding portion 14 is formed at an end portion of the non-combustible packaging material 9. Specifically, the non-combustible packaging material 9 is formed by laminating three layers of the composite material 16 on the outer side of the two-layer composite material 15 as shown in Fig. 2 . Further, the holding portion μ is 321946 6 201134408, and the three-layer composite material 16 is formed to be longer than the two-layer composite material 15. The two-layer composite material 15 is formed of an aluminum layer 17 made of metal (for example, made of aluminum) on the inner side, and a paper layer 18 made of paper on the outer side. The three-layer composite material 16 is formed by laminating the paper layer 18, the aluminum layer 17, and the paper layer 18 from the inside. Since the innermost layer of the non-combustible packaging material 9 is the aluminum layer 17, even if the temperature of the tobacco yarn rises during suction, it is insulated by the aluminum layer 17 and the non-combustible packaging material 9 is not heated. The situation. Further, the aluminum layer 17 is easily transferred to heat, and the aroma generating source 8 can be efficiently heated. Therefore, the aluminum layer 17 may be formed of any material as long as it is a material having heat insulating properties and heat conductivity. The carbon heat source 4 is directly adhered to the holding portion 14 and held. Thus, by holding the holding portion 14 directly in close contact with each other, a holding member such as a glass mat for holding the carbon heat source 4 is not required. Therefore, the number of parts and the number of assembly steps can be reduced to improve the efficiency of the work. In addition, it is also possible to reduce costs. Further, since the three-layer composite material 16 forming the holding portion 14 also has the aluminum layer 17, the holding portion 14 does not disappear due to the heat generated from the carbon heat source 4 being heated. The holding of the carbon heat source 4 by the holding portion 14 can be carried out in the following manner. FIG. 3 is an example in which the circumferential projections 19 are provided in the holding portion 14. The circumferential projections 19 project toward the inner surface of the holding portion 14, and are formed continuously in the circumferential direction. As described above, by forming the circumferential projections 19 in the holding portion 14, the carbon heat source 4 is in close contact with the non-combustible packaging material 9, and the holding portion 14 and the carbon heat source 4 are directly engaged with each other, and can be reliably held. Further, in the example of the 3 321 946, 2011, 34,408, since the circumferential projection 19 is formed, the circumferential groove 20 is provided from the outer circumference of the holding portion so as to correspond to the circumferential projection 19. That is, the circumferential projections 19 are also formed at the same time as the circumferential grooves 20 are formed. Further, when the carbon heat source 4 is held, the carbon heat source 4 may be inserted into the holding portion 14 and pressed from the outside, and the circumferential groove 19 may be formed and held while the circumferential groove 20 is formed, or the circumferential direction may be formed in advance. The projection 19 presses the carbon heat source 4 into the circumferential projection 19. Regarding the order of the holding, the following examples of Figs. 4 and 5 are also the same. Fig. 4 shows an example in which a plurality of projections 21 are provided on the inner surface of the holding portion 14. The carbon heat source 4 is also adhered to the non-combustible packaging material 9 by the projections 21, and the holding portion I4 and the carbon heat source 4 are directly engaged with each other, and can be surely held. In addition, in the fifth drawing, the axial direction protrusion 22 is provided in the holding portion 14. The axial direction projection 22 projects toward the inner surface of the holding portion 14, and is formed along the axial direction. Thereby, the carbon heat source 4 can be more reliably maintained. On the other hand, as shown in Fig. 6, it is also possible to fold only the other end of the abutment to the inside and fold it back to 40%. Ρ 23. At this time, the carbon heat source 4 is bonded to the non-combustible package by the folded portion. Material 9, and (4) # \ will directly engage each other, but can be surely (4) annoying, and, in addition, as shown in Figure 7, can also be embedded in the 19 groove 24 of the carbon heat source The 4-port, the circumferential direction of the large groove 20 will be fitted, and the carbon b, the circumferential protrusion 19 and the peripheral Η ' ' 复 亦 亦 亦 亦 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳 碳Sex. Just for carbon: workmanship and further - step: As shown in Figure 8, you can also set the carbon heat source 4, for example, if the through hole 25 is placed again, and the pin 26 321946 8 201134408 := =: 1 At this time, the 'pin 26 is penetrated through the holding portion 14. Specifically, the im, the beton holding portion' and the step 26 are inserted into the through hole 25 of the second and second sources 4, so that even the pin 26 is used. The holding portion 14 is indirectly engaged with the carbon source 4 ^ ', and the original 4, and the carbon heat source 4 is held, and the green solidity can be improved and maintained. Further, as shown in FIG. , can also = The circumferential surface of the carbon heat source 4 is threaded and the threaded portion 27 is provided. This can also improve the reliability of the holding. The diameter is large and pressed in. It is better to avoid the knot ▲ Feng, as shown in Fig. 10, for carbon The heat source 4 is provided with a tapered surface 28 which is pressed toward the press-in direction. Thereby, the workability at the time of pressing is improved. The carbon 8 is connected to the non-combustible packaging material 9, and the holding portion Μ and the carbon heat source 4 are Directly interlocking with each other, and maintaining the real money. In the third figure, the example of forming the circumferential groove 20 is shown, and the non-flammability of the flammable packaging material with s = a and the circumferential groove is not used. The packaging material is used for comparative experiments. The non-physical packaging material uses a length of 50 mm and an inner diameter of 1. The sigh is a non-combustible packaging material with a circumferential groove. The depth of the circumferential groove is mm, and the circumferential direction is raised. The inner diameter of the part is set to 7 〇mm. In addition, the 'carbon heat source 4 is the outer diameter 7 to 7 3 _, the length 1 〇 _. The second member 'inserts the carbon heat source with respect to the non-securable packaging material 5 mm, And f-loading; making a smoking object under the predetermined conditions for the smoking article, OK, the force of the smoke 2 〇〇gf is given 1 hit hit to investigate carbon heat source = no fall # Investigate whether or not the carbon heat source falls for each of the 2Q roots of each smoking article. When using a non-combustible packaging material that does not have a circumferential groove, the carbon heat source falls in the 2G roots of the total smoking object °°. When the circumferential groove is provided with a non-combustible packaging material protruding in the direction of 321946 9 201134408, the carbon heat source is retained as it is in all of the 20 smoking articles. Therefore, it was confirmed by experiments that the smoking article of the present invention is carbon. In addition, the test for investigating whether or not the above-mentioned carbon heat source is dropped is to use a test machine that holds the filter material side and uses this as a fulcrum to rotate the smoking article and can repeatedly perform the front end swing and the swing. When the swing is made, the front end of the smoking article is collided with the receiving member that receives the front end. Specifically, the test machine described in Japanese Patent No. 3048036 is used. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a smoking article of the present invention. Fig. 2 is an enlarged view of a portion A of Fig. 1. Fig. 3 is a schematic cross-sectional view showing a portion of a carbon heat source for holding a smoking article of the present invention. Fig. 4 is a schematic cross-sectional view showing a portion of a carbon heat source of another smoking article of the present invention. Fig. 5 is a schematic cross-sectional view showing a portion of a carbon heat source of another smoking article of the present invention. Fig. 6 is a schematic cross-sectional view showing a portion of a carbon heat source of another smoking article of the present invention. Fig. 7 is a schematic cross-sectional view showing a portion of a carbon heat source of another smoking article of the present invention. Fig. 8 is a schematic cross-sectional view showing a portion of a carbon heat source of another smoking article of the present invention. Figure 9 is a schematic cross-sectional view of a portion of a carbon heat source of another smoking article of the present invention 10 321946 201134408. ^ The figure is a schematic cross-sectional view of the portion of the carbon heat source of another smoking article of the present invention. [Explanation of main components] 1 Smoking article 2 Filter material 2a Common filter material 2b Carbon fiber material 3 Tobacco rod 4 Carbon heat source 5 Filter material fiber 6 Wind paper 7 Filter fiber containing activated carbon 8 Smell-producing source 9 Non-combustible packaging material ( Pipe member) 10 intermediate rod 11 roll paper 12 tobacco yarn 13 outer layer paper 14 holding portion 15 two-layer composite material 16 three-layer composite material 17 is layer 18 paper layer 19 circumferential direction projection 20 circumferential groove 21 projection 22 axial direction projection 23 folding back portion 24 circumferential groove 25 through hole 26 pin 27 threaded portion 28 tapered surface 11 321946