EP0167863B1 - Filtre de cigarette à ventilation variable - Google Patents

Filtre de cigarette à ventilation variable Download PDF

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Publication number
EP0167863B1
EP0167863B1 EP85107234A EP85107234A EP0167863B1 EP 0167863 B1 EP0167863 B1 EP 0167863B1 EP 85107234 A EP85107234 A EP 85107234A EP 85107234 A EP85107234 A EP 85107234A EP 0167863 B1 EP0167863 B1 EP 0167863B1
Authority
EP
European Patent Office
Prior art keywords
wrapping sheet
filter
sleeve
cigarette according
extended
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85107234A
Other languages
German (de)
English (en)
Other versions
EP0167863A1 (fr
Inventor
Henning Dr. Seidel
Wolfgang Wildenau
Joachim Mantke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reemtsma Cigarettenfabriken GmbH
Original Assignee
HF and PhF Reemtsma GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3422776A external-priority patent/DE3422776C1/de
Priority claimed from DE19853516841 external-priority patent/DE3516841A1/de
Application filed by HF and PhF Reemtsma GmbH and Co filed Critical HF and PhF Reemtsma GmbH and Co
Priority to AT85107234T priority Critical patent/ATE31601T1/de
Publication of EP0167863A1 publication Critical patent/EP0167863A1/fr
Application granted granted Critical
Publication of EP0167863B1 publication Critical patent/EP0167863B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter

Definitions

  • the invention relates to a variably ventilated filter cigarette with a groove filter according to the preamble of the main claim.
  • Such filter cigarettes are known according to DE-OS 3011 959 and cause a strict separation of smoke flow and ventilation air and a mixture of these only in the smoker's mouth.
  • the proportion of ventilation or auxiliary air in such ventilated filter cigarettes depends on several factors, such as the air permeability of the wrapping sheet, i.e. on the number and size of the perforations, and also on the size and number of channels in the groove filter, the filter resistance and the series resistance of the tobacco rod which changes when the cigarette is burned off.
  • the desired air intake range can be achieved by e.g. To increase the proportion of the additional air, larger grooves are provided in the groove filter and the wrapping sheets are provided with a correspondingly more permeable perforation. However, such changes in the degree of ventilation are cumbersome and make cigarette manufacture considerably more difficult.
  • a filter cigarette is already known from US Pat. No. 3,390,684, in which the ventilation air flow can be regulated either by covering a ventilation opening by means of a finger or by pushing on a sleeve.
  • the inadequate variability of the supply of the ventilation air flow and, on the other hand, the deviation of the external appearance compared to conventional filter cigarettes is disadvantageous.
  • US Pat. No. 3,376,874 rotatably arranged pot-like sleeves for cigarette filters with which the smoker can influence the filter effect depending on the degree of rotation.
  • These adjustable filters with a pot-like sleeve can only be produced in a complicated manner and also change the habitual habit of a conventional filter cigarette. All these known filters also have the disadvantage that they have no guidance of the ventilation air flow that is strictly separate from the smoke flow.
  • the invention has set itself the task of developing a variably ventilated filter cigarette of the type described above with several ventilation channels separated from the smoke flow, which depending on the current smoking habits of the consumer himself can be reproducibly adjusted to a greater or lesser degree of ventilation without changing the aroma quality and which does not differ in terms of its appearance from conventional filter cigarettes in terms of its shell area and can ultimately be produced in a simple and conventional manner.
  • a ventilated filter cigarette with a groove filter which consists of a fully cylindrical filter body with an air-impermeable sleeve surrounding it, on the circumferential surface of which a plurality of groove-like channels which are essentially axially extending, open on the mouth side and closed on the tobacco side are arranged at a distance from one another, and in which the filter body and the filter-side end of the tobacco section are surrounded by a wrapping sheet which is permeable to air at least in the region of the groove-like channels and which is characterized by a sleeve provided after the mouth-side end of the groove filter, which is rotatable in the over the groove filter
  • an elongated wrapping sheet is arranged and has a pot-like design and has a bottom surface which lies against the end face of the groove filter and has a central opening and openings or recesses in the edge area, the Openings or recesses in the edge area with the outlet openings of the groove-like channels can be
  • the filter cigarette according to the invention is preferably designed in such a way that the pot-like sleeve is arranged in the extended wrapping sheet by means of an annular circumferential groove which lies on the outer surface of the pot-like sleeve and an annular spring which engages in the groove and which is arranged on the inner surface of the elongated wrapping sheet Turning engagement is held.
  • the variably ventilatable filter cigarette can be designed such that the interior of the pot-like sleeve is partially or completely filled with filter material.
  • This additional version with filter material can be done with a simple filter plug, but also with a grooved filter.
  • a simple filter plug but also with a grooved filter.
  • this can be influenced in its qualitative effect if the main smoke flow is allowed to flow through the filter plug in the pot-like sleeve, be it by twisting the sleeve with which the alignment of the channels is prevented and / or by a deliberate permeability for the supply air flow from the channels of the grooved filter plug located in the sleeve into this in order to achieve bundling and mixing of the supply air and main smoke stream in this filter.
  • the rotatable sleeve at the mouth end can be rotated into the corresponding position, for example by inserting a pin or with the little finger.
  • this sleeve-like extension can be gripped much more easily with the fingers from the outside in order to turn the pot-like sleeve into the desired position, and that the outer habit of the cigarette is not changed either, since practically the outer diameter of the sleeve-like extension only by a small amount, namely by the thickness of the extended wrapping sheet, is smaller.
  • this slight difference in the outer diameter can also be compensated for by the fact that the sleeve-like extension in the region no longer covered by the extended wrapping sheet has the same outer diameter as the groove filter surrounded by the wrapping sheet when it emerges from the elongated wrapping sheet and escapes with it.
  • the sleeve-like extension regardless of whether it has a cylindrical ring of the same diameter or one with a cranked-off area in which the extended area is no longer covered, that is to say the protruding area is covered with a further envelope sheet.
  • this further wrapping sheet which is applied to the protruding part of the pot-like sleeve or to the sleeve-like extension, can be connected to the elongated wrapping sheet via a predetermined breaking point.
  • This embodiment not only has the advantage that the wrapping sheet in the area of the groove filter and the elongated wrapping sheet in the area of the pot-like sleeve and also the further wrapping sheet form a uniform, continuous surface, but also that the manufacture of such a filter cigarette is considerably simplified since only a single wrapping sheet with predetermined breaking point around the groove filter, the pot-like sleeve and the sleeve-like extension can be applied in one operation.
  • the consumer only needs to blow open the predetermined breaking point in the area of the sleeve-like extension in order to set the desired ventilation effect by turning.
  • blocking means are provided on the elongated wrapping sheet and on the rotatable sleeve which only allow limited movement of the rotatable sleeve from a position in which allow the openings or the recesses in the edge region of the bottom surface with the outlet openings of the groove-like channels in the passage position in a blocking position.
  • the blocking means preferably consist of a partially annular projection or a lug, which engage in a partially annular groove, wherein a plurality of lugs can also be arranged at a distance from one another, which engage in corresponding partially annular grooves.
  • markings can be provided on the outer surface of the sleeve-like extension or on the further wrapping sheet covering it and on the outer surface of the elongated wrapping sheet, indicating the complete passage position and / or blocking position of the ventilation air.
  • the groove filter 18 consists of a cylindrical filter body 20 with an air-impermeable sleeve 22, in the circumferential surface of which groove-like channels 24 are embedded. This groove filter 18 is surrounded by a wrapping sheet 26, in which perforations 28 are provided in the region of the channels. The channels are open towards the mouth end and closed towards the tobacco end.
  • the auxiliary air flows through the perforations 28 and the channels 24 and, separate from the smoke flowing through the filter core 20 of the groove filter, passes through the outlet openings 25 (FIG. 1 a) of the groove-like channels 24 into the smoker's mouth.
  • a pot-like sleeve 30 is arranged, which is rotatably held by an extended wrapping sheet 26 '.
  • the pot-like sleeve has an annular circumferential groove 40, into which an annular circumferential projection 38 engages, which is provided on the inner surface of the elongated wrapping sheet 26 '.
  • the bottom surface 32 of the cup-like sleeve 30 has various openings, namely a central opening 34 in the area of the end face 21 of the groove filter and further openings 36 in the edge area of the bottom surface 32, which are aligned with the outlet openings 25 ( Fig. 1a) of the groove-like channels 24 are.
  • the openings 36 can either be designed as separate openings (FIG. 3a) or as cutouts, as shown in FIG. 3b; here the recesses 37 located in the edge area merge into the central opening.
  • the openings 36 located in the edge region of the bottom surface 32 are in register with the outlet openings 25 of the groove-like channels 24, so that the additional air can flow in through the groove-like channels 24 unhindered into the pot-like sleeve 30 and there can mix with the already filtered smoke which enters through the filter body 20 and the central opening 34 in the bottom 32 of the pot-like sleeve into the interior 42 of this sleeve.
  • This interior 42 of the pot-like sleeve can optionally also include additional filter material either partially e.g. included as a filter ring 44 (Fig. 2) or completely.
  • the pot-like sleeve 30 is extended on the mouth side via the extended wrapping sheet 26 'and forms a sleeve-like extension 50 which extends beyond the wrapping sheet 26'.
  • This configuration makes it possible to lightly grip the protruding part with a finger sleeve-like extension to set the desired ventilation.
  • the sleeve-like extension 50 is not in a preferred embodiment according to FIG more of the area covered by the elongated sheathing sheet 26 'is slightly expanded after an offset 52 when exiting the elongated sheathing sheet 26', the part 54 of the extending sleeve-like extension 50 having more or less the same outside diameter as the groove filter 18 surrounded by the sheathing sheet 26 and aligned with this more.
  • outside diameter of these two parts can be the same or differ by a small proportion.
  • the sleeve-like extension 50 is covered with a further wrapping sheet 56 in the area no longer covered by the elongated wrapping sheet 26 ′, that is to say in the projecting area 54.
  • the embodiment can be provided both with a cranked and with a continuous sleeve-like extension part 50 or 54.
  • the elongated wrapping sheet 26 'and the additional further wrapping sheet 56 these parts can be produced from a uniform material and a connection between the wrapping sheet extension and the wrapping sheet 56' can be established by a predetermined breaking point, such as it is shown in Fig. 7.
  • This form of training not only has the advantage of a better optical habit, but also results in a simpler and better production, in which all the areas forming the wrapping sheet, namely the actual wrapping sheet 26, the elongated wrapping sheet 26 'and the further wrapping sheet 56 or 56' in can be attached to the filter cigarette in one operation.
  • the predetermined breaking point 58 is blown up and a corresponding rotary movement is made possible by a simple rotary movement in the outer region of the further wrapping sheet 56 ′, that is to say at the outer end of the mouthpiece.
  • blocking means are provided which allow only a limited movement of the rotatable sleeve 30; from a point in which the openings or recesses 36 of the bottom surface 32 with the outlet openings 25 of the groove-like channels lie in the passage position to a further complete blocking position in which - as shown in FIG. 1 - no secondary air or auxiliary air occurs at all.
  • these blocking means can consist of a partially ring-shaped projection or a nose-shaped projection 60. This projection engages in a corresponding partially annular groove 62.
  • a plurality of lugs 60 are preferably arranged at a distance from one another on the inner surface of the elongated wrapping sheet 26 ′, which engage in correspondingly designed partially annular grooves 62 which are shaped in the sleeve 30.
  • the air-impermeable sleeve 22 can also be designed to be more or less air-permeable;
  • the groove-like channels can also extend to the tobacco-side end of the filter core 20.

Claims (12)

1. Cigarette à filtre pourvue d'un filtre à cannelures (18) constitué par un corps de filtre (20) en forme de cylindre plein entouré d'une gaine (22) imperméable à l'air qui présente à sa surface périphérique une pluralité de canaux (24) en forme de cannelures espacées sensiblement axiales, ouvertes du côté de la bouche du fumeur et fermées du côté du tabac de la cigarette, ledit corps de filtre (20) et l'extrémité du côté filtre de la charge de tabac étant entourés d'une feuille enveloppante (26) qui est perméable à l'air au moins dans la zone desdits canaux en forme de cannelures (24), caractérisée en ce qu'elle comporte, en juxtaposition à l'extrémité du filtre à cannelures (18) située du côté de la bouche du fumeur, une douille (30) qui est montée à rotation dans la feuille enveloppante prolongée (26' ) dépassant du filtre à cannelures (18) et qui présente la forme d'un pot comportant un fond (32) qui touche la face frontale (21) du filtre à cannelures (18) et qui est pourvu d'une ouverture centrale (34) et d'ouvertures (36) ou d'évidements (37) dans la zone marginale, lesdits évidements (37) ou ouvertures (36) marginales étant susceptibles d'être amenés à partir d'une position de dégagement vers une position d'obturation partielle ou totale par rapport aux orifices de sortie (25) desdits canaux (24) en forme de cannelures, par un déplacement rotatoire de ladite douille (30).
2. Cigarette à filtre selon la revendication 1, caractérisée en ce que la douille (30) en forme de pot est montée à rotation dans la feuille enveloppante prolongée (26' ) à l'aide d'une gorge annulaire (40) pratiquée sur la surface extérieure de ladite douille (30) en forme de pot et d'une saillie (38) annulaire qui s'engage dans ladite gorge (40) et qui est formée à la surface intérieure de ladite feuille enveloppante prolongée (26').
3. Cigarette à filtre selon les revendications 1 et 2, caractérisée en ce que l'espace intérieur (42) de la douille en forme de pot (30) est rempli partiellement ou entièrement d'un matériau filtrant (44).
4. Cigarette à filtre selon les revendications 1 à 3, caractérisée en ce que l'ouverture centrale (34) du fond (32) de la douille en forme de pot (30) communique avec les évidements (36) ou échancrures (37) prévues dans la partie marginale.
5. Cigarette à filtre selon les revendications 1 à 4, caractérisée en ce que ladite douille en forme de pot (30) comporte un prolongement sensiblement cylindrique (50) dépassant de la feuille enveloppante prolongée (26' ) du côté de la bouche de l'usager.
6. Cigarette à filtre selon la revendication 5, caractérisée en ce que le prolongement cylindrique (50) présente, dans sa zone non recouverte par la feuille enveloppante prolongée (26' ), un évasement (52) à sa sortie de ladite feuille enveloppante prolongée (26' ), évasement derrière lequel le diamètre extérieur dudit prolongement cylindrique est égal à celui du filtre à cannelures (18) entouré de ladite feuille enveloppante (26), ledit prolongement cylindrique étant ainsi aligné sur ledit filtre.
7. Cigarette à filtre selon la revendication 5 ou 6, caractérisée en ce que ledit prolongement cylindrique (50) est entouré d'une seconde feuille enveloppante (56) dans la zone non recouverte par ladite feuille enveloppante prolongée (26'
8. Cigarette à filtre selon la revendication 7, caractérisée en ce que ladite seconde feuille enveloppante (56' ) est reliée à la feuille enveloppante prolongée (26' ) par une zone de rupture (58).
9. Cigarette à filtre selon les revendications 5 à 8, caractérisée en ce que la feuille enveloppante prolongée (26' ) et la douille rotative (30) comportent des moyens de blocage (60, 62) qui ne permettent qu'un mouvement limité de ladite douille rotative (30) à partir d'une position dans laquelle les ouvertures ou évidements (36) marginaux du fond (32) sont en registre avec les orifices de sortie (25) desdits canaux en forme de rainures (24), vers une position d'obturation.
10. Cigarette à filtre selon la revendication 9, caractérisée en ce qu les moyens de blocage sont constitués par une saillie en forme de partie annulaire ou de nez (60) s'engageant dans une gorge (62) en forme de partie annulaire.
11. Cigarette à filtre selon la revendication 10, caractérisée en ce que la surface intérieure de la feuille enveloppante prolongée (26' ) est pourvue de plusieurs nez (60) espacés qui s'engagent dans des gorges correspondantes (62) en forme de parties annulaires.
12. Cigarette à filtre selon les renvendications 5 à 11, caractérisée en ce que la surface extérieure du prologement cylindrique (50, 54) ou de la seconde feuille enveloppante (56, 56' ) qui recouvre ledit prologement, ainsi que la surface de la feuille enveloppante prolongé (26' ) sont pourvues de repères indiquant la position de dégagement total et/ou la position d'obturation, en ce qui concerne l'écoulement de l'air de ventilation.
EP85107234A 1984-06-20 1985-06-12 Filtre de cigarette à ventilation variable Expired EP0167863B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107234T ATE31601T1 (de) 1984-06-20 1985-06-12 Variabel ventilierbare filterzigarette.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3422776A DE3422776C1 (de) 1984-06-20 1984-06-20 Variabel ventilierbare Filtercigarette
DE3422776 1984-06-20
DE19853516841 DE3516841A1 (de) 1985-05-10 1985-05-10 Variabel ventilierbare filtercigarette
DE3516841 1985-05-10

Publications (2)

Publication Number Publication Date
EP0167863A1 EP0167863A1 (fr) 1986-01-15
EP0167863B1 true EP0167863B1 (fr) 1988-01-07

Family

ID=25822275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107234A Expired EP0167863B1 (fr) 1984-06-20 1985-06-12 Filtre de cigarette à ventilation variable

Country Status (5)

Country Link
US (1) US4593707A (fr)
EP (1) EP0167863B1 (fr)
JP (1) JPH0722502B2 (fr)
CA (1) CA1226498A (fr)
ES (2) ES287550Y (fr)

Families Citing this family (18)

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Publication number Priority date Publication date Assignee Title
GB8531659D0 (en) * 1985-12-23 1986-02-05 British American Tobacco Co Smoking articles
US4677995A (en) * 1986-02-24 1987-07-07 Philip Morris Incorporated Filter cigarette
GB8713904D0 (en) 1987-06-15 1987-07-22 Tabac Fab Reunies Sa Filter for smoking articles
US4848375A (en) * 1987-11-10 1989-07-18 Philip Morris Incorporated Filter cigarette
GB0809865D0 (en) * 2008-05-30 2008-07-09 British American Tobacco Co Filter for a smoking article
GB0813567D0 (en) * 2008-07-24 2008-09-03 British American Tobacco Co Filter for a smoking article
US20100059075A1 (en) * 2008-09-09 2010-03-11 Steve Woodson Ventilated smoking material perforation apparatus and method
US20100059072A1 (en) * 2008-09-09 2010-03-11 Steve Woodson Ventilated smoking material perforation apparatus, method and product
JP2011205917A (ja) * 2010-03-29 2011-10-20 British American Tobacco Japan Kk 換気レベルを変えられる喫煙品
US8205621B1 (en) 2011-01-27 2012-06-26 Wayne Seeley Smoking device for aiding cessation of smoking
GB201104232D0 (en) * 2011-03-14 2011-04-27 British American Tobacco Co Smoking article and method of manufacturing a smoking article
GB2490732A (en) 2011-05-13 2012-11-14 British American Tobacco Co Filter for a smoking article
GB201113936D0 (en) * 2011-08-12 2011-09-28 British American Tobacco Co Smoking article and method of manufacturing a smoking article
GB201223179D0 (en) 2012-12-21 2013-02-06 British American Tobacco Co A smoking article
GB201223183D0 (en) 2012-12-21 2013-02-06 British American Tobacco Co A smoking article
GB201411619D0 (en) 2014-06-30 2014-08-13 British American Tobacco Co Flow control device
JPWO2016152825A1 (ja) * 2015-03-24 2018-01-11 ロート製薬株式会社 吸引器具
GB201919078D0 (en) * 2019-12-20 2020-02-05 Nicoventures Trading Ltd Component for use in an aerosol provision system

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US3376874A (en) * 1965-04-12 1968-04-09 Kim Yunil Adjustable cigarette filters
US3359988A (en) * 1965-04-21 1967-12-26 Osborne M Thomson Filter cigarette
US3428050A (en) * 1967-02-21 1969-02-18 Walter R Kandel Filter cigarette of adjustable filter capacity
US3503406A (en) * 1968-10-28 1970-03-31 Lawrence Murry Riegel Cigarettes
US3512537A (en) * 1968-11-27 1970-05-19 U S Remedy Corp Adjustable aerated cigarette
JPS543960A (en) * 1977-06-10 1979-01-12 Mitsubishi Plastics Ind Ltd Dilution injecting apparatus for agricultural chemicals
JPS5568282A (en) * 1978-11-17 1980-05-22 Mitsubishi Acetate Co Ltd Tobacco filter
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US4342322A (en) * 1980-12-22 1982-08-03 Brown & Williamson Tobacco Corporation Cigarette filter
IT1151969B (it) * 1981-07-06 1986-12-24 Cigarette Components Ltd Mezzo di filtrazione
JPS59501813A (ja) * 1982-09-30 1984-11-01 フィリップ・モーリス・プロダクツ・インコーポレイテッド 調整可能なフイルタ−・シガレツトおよびその製造法
JPS59501892A (ja) * 1982-09-30 1984-11-15 フィリップ・モーリス・プロダクツ・インコーポレイテッド フイルタ−シガレツト
JPS5963179A (ja) * 1982-10-01 1984-04-10 三菱アセテート株式会社 タバコ用吸口

Also Published As

Publication number Publication date
ES287550Y (es) 1987-01-16
ES287550U (es) 1986-05-01
JPS6131075A (ja) 1986-02-13
ES291377Y (es) 1987-01-16
ES291377U (es) 1986-05-16
EP0167863A1 (fr) 1986-01-15
CA1226498A (fr) 1987-09-08
JPH0722502B2 (ja) 1995-03-15
US4593707A (en) 1986-06-10

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