EP2011409A1 - Vorrichtung zur Messung des Zugwiderstands - Google Patents

Vorrichtung zur Messung des Zugwiderstands Download PDF

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Publication number
EP2011409A1
EP2011409A1 EP07252688A EP07252688A EP2011409A1 EP 2011409 A1 EP2011409 A1 EP 2011409A1 EP 07252688 A EP07252688 A EP 07252688A EP 07252688 A EP07252688 A EP 07252688A EP 2011409 A1 EP2011409 A1 EP 2011409A1
Authority
EP
European Patent Office
Prior art keywords
smoking article
sleeve
draw
resistance
passageway
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.)
Ceased
Application number
EP07252688A
Other languages
English (en)
French (fr)
Inventor
designation of the inventor has not yet been filed The
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.)
Philip Morris Products SA
Original Assignee
Philip Morris Products SA
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
Application filed by Philip Morris Products SA filed Critical Philip Morris Products SA
Priority to EP07252688A priority Critical patent/EP2011409A1/de
Priority to PCT/IB2008/002616 priority patent/WO2009004493A2/en
Priority to AT08826063T priority patent/ATE525922T1/de
Priority to DK08826063.3T priority patent/DK2164352T3/da
Priority to PT08826063T priority patent/PT2164352E/pt
Priority to EP08826063A priority patent/EP2164352B1/de
Priority to PL08826063T priority patent/PL2164352T3/pl
Priority to ES08826063T priority patent/ES2373829T3/es
Publication of EP2011409A1 publication Critical patent/EP2011409A1/de
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • A24C5/3418—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by pneumatic means

Definitions

  • This invention relates to devices for measuring parameters of smoking articles such as cigarettes, and in particular to measuring the resistance-to-draw of cigarettes.
  • Devices for measuring parameters of smoking articles such as cigarettes are well known in the art.
  • Devices for measuring resistance-to-draw are provided by Cerulean, a division of Molins PLC of the United Kingdom and Heinrich Borgwaldt GmbH of Hamburg, Germany. Examples of known devices for measuring resistance-to-draw are disclosed in WO-A-96/04808 and DE-A-4112878 .
  • Known resistance-to-draw measuring devices draw a constant air flow longitudinally from a rod end of a smoking article, through the tobacco rod, through the filter if present and out through the mouth end of the smoking article.
  • Such conventional devices are not suitable for measuring the resistance-to-draw of smoking articles in which the air flow is not drawn from the rod end to the mouth end of the smoking article.
  • An example of such a smoking article is an electrically heated smoking article as disclosed, for example, in EP-A-0822760 and EP-A-0615411 .
  • An electrically heated smoking article is used with an electrical heating device.
  • the electrically heated smoking article is inserted partially inside the electrical heating device such that the rod end of the electrically heated smoking article is surrounded by the heating device.
  • the electrically heated smoking article is heated by a set of electrical heating elements to evolve tobacco flavours from the electrically heated smoking article.
  • the air flow in the electrically heated smoking article is such that air enters through the side of the electrically heated smoking article, for example, through perforations in the wrapper thereof. The air flow is drawn through the mouth end of the electrically heated smoking article that remains outside of the electrical heating device.
  • the present invention provides a device which is suitable for measuring resistance-to-draw of smoking articles in which the air flow is not drawn from the rod end to the mouth end of the smoking article and in particular for measuring resistance-to-draw of electrically heated smoking articles.
  • a device for measuring the resistance-to-draw of a smoking article having a rod end and a mouth end comprising a chamber having an opening for receiving a smoking article, a first sleeve and a second sleeve for holding the smoking article and defining a space between the first sleeve and the second sleeve.
  • the chamber further comprises a first aperture in a wall of the chamber for introduction of air into the space and a second aperture for extraction of air passed through the mouth end of the smoking article for the determination of resistance-to-draw.
  • the opening is selectively closable to prevent passage of air through the rod end of the smoking article.
  • resistance-to-draw is used throughout the specification to denote the difference in static pressure of a smoking article when a steady flow of air at 17.5 millilitres per second (ml/s) passes through the smoking article according to ISO9512.
  • the resistance-to-draw is expressed in "mm water gauge” or "mmWG”.
  • ventilation is used throughout the specification to denote the drawing of atmospheric air into the smoking article other than through its rod end. This results in the dilution of the air flow passing from the rod end to the mouth end of the smoking article.
  • the ventilation is expressed in percent of the air flow passing from end to end of the smoking article. In an unventilated smoking article, the ventilation is essentially zero percent. In an electrically heated smoking article, the ventilation is essentially one hundred percent as basically no air flow from end to end of the smoking article is present.
  • the device according to the invention has the advantage that it may be used to measure resistance-to-draw with the opening closed so that there is no air flow from end to end of the smoking article. That is, it enables resistance-to-draw of a smoking article to be measured without flow of air along the entire length of the smoking article. Instead, air is drawn through ventilation perforations that are housed in the space between the first and second sleeves. This makes a device according to the invention suitable for use with electrically heated smoking articles or other smoking articles in which air is not drawn through the rod end of the smoking article.
  • the opening is selectively closable and the device may be operated with the opening open making it suitable for measuring resistance-to-draw of conventional smoking articles.
  • a block including the opening for receiving a smoking article is arranged above the space between the first and second sleeves, the block having a first passageway aligned with the opening for receiving a smoking article, and a second passageway, transverse to the first passageway and intersecting the first passageway.
  • the second passageway houses a closure member selectively movable between an open position and a closed position in which it closes the first passageway.
  • the closure member is a piston head.
  • the piston head has a frustoconical shape to facilitate closure of the passageway.
  • the first passageway has a funnel portion at the opening for ease of insertion of smoking articles into the chamber.
  • the block or the piston head or both the block and the piston head are made from a polymer, preferably from a polymer with good machinability and at the same time low frictional properties, without showing abrasion, and a high pressure tightness.
  • An exemplary polymer is polyoxymethylen (POM). Where both the block and the piston head are made from polyoxymethylen the pressure tightness between the meeting surfaces of the block and the piston head is particularly good.
  • At least one of the first and second sleeves of the device according to the invention is movable inside the chamber along the smoking article in order to change the size of the space between the sleeves.
  • the outer surface area of the smoking article that contributes to the ventilation of the smoking article during measurement of resistance-to-draw may be advantageously adjusted.
  • the first duct 22 is connected to a second duct 24 that leads to a pressure sensor 25, which measures the pressure drop across the first duct 22.
  • first lower sleeve 26 and a second upper sleeve 28 Within the chamber 10 are a first lower sleeve 26 and a second upper sleeve 28.
  • the first sleeve 26 and the second sleeve 28 may be moved between an open position and a closed position. In the open position, the smoking article 32 may be introduced through the top openings in the sleeves 26, 28. In the closed position, the sleeves 26, 28 fix the smoking article 32 in position within the chamber 10 forming an air-tight seal.
  • the first lower sleeve 26 and the second upper sleeve 28 are made from latex.
  • the sleeves 26, 28 are arranged so that the first lower sleeve 28 holds the mouth end of the filter 30 of the smoking article 32 and the second upper sleeve holds the tobacco rod of the smoking article 32 at a point adjacent to the filter 30.
  • the two sleeves 26, 28 define a space 34 between them.
  • This space 34 is connected to a duct 38.
  • the duct 38 has a valve 40 enabling the air flow to the space 34 to be controlled.
  • a pneumatic resistor 39 is arranged in the duct 38 to create a pressure of 1 mmWG in the duct 38. This pressure in the duct 38 is measured by a pressure sensor 41.
  • the resistance-to-draw of a smoking article 32 is measured as follows.
  • the smoking article 32 is inserted into the chamber 10 as shown in Figure 1 .
  • the first sleeve 26 and the second sleeve 28 close around the smoking article 32.
  • the valve 40 is closed to shut off the air flow into the space 34.
  • Air is drawn through the smoking article 32, at a constant flow rate of 17.5 ml/s through the aperture 20 and through the first duct 22. This air flow is shown by the solid arrow 42 in Figure 1 .
  • the pressure drop measured by the pressure sensor 25 corresponds to the resistance-to-draw of the unventilated smoking article 32.
  • the ventilation of a smoking article 32 is measured as follows.
  • the smoking article 32 is inserted into the chamber 10 as shown in Figure 1 .
  • the first sleeve 26 and the second sleeve 28 close around the smoking article 32.
  • Valve 40 is opened and air is drawn into the space 34, through the ventilation holes 46 of the filter 30 into the smoking article 32 and into the first duct 22 as shown by the dashed arrow 44 in Figure 1 .
  • this additional air flow 44 is joined by the air flow 42. Due to the additional air flow 44, the pressure drops at sensor 25 resulting in a reduced resistance-to-draw of the ventilated smoking article 32. From the difference between the resistance-to-draw with ventilation and the resistance-to-draw without ventilation, the percentage of the ventilation may be calculated.
  • Figure 2 shows an embodiment of a device according to the invention, which modifies the prior art device of Figure 1 to enable the measurement of the resistance-to-draw of a smoking article 132 where the air does not enter through the rod end of the smoking article 132, such as an electrically heated smoking article.
  • the electrically heated smoking article 132 shown in Figure 2 includes one or two rows of perforations 146 to allow air to enter into the electrically heated smoking article 132. These perforations 146 are spaced further towards the rod end of the electrically heated smoking article 132 than the perforations of a conventional smoking article. To encompass the perforations 146 within the space 134, the second upper sleeve 128 is movable into an upper position shown in Figure 2 such that the second upper sleeve 128 is above the perforations 146 when the electrically heated smoking article 132 is in position within the chamber 110. Thus, the space 134 between the first lower sleeve 126 and the second upper sleeve 128 is increased.
  • a block 150 is arranged above the top opening of the chamber 110.
  • the block 150 comprises a vertical passage way 154 through which the smoking article 132 may be inserted into the chamber 110.
  • the vertical passageway 154 is intersected by a horizontal passageway 158.
  • the intersection of the vertical passageway 154 and the horizontal passageway may be blocked and sealed by a piston head 166.
  • the piston head 166 is movable along the horizontal passageway 158 by means of a piston 172, which is pneumatically driven by a cylinder 174.
  • the piston head 166 has a frustoconical shape.
  • the frustoconical shape of the piston head 166 enhances the sealing of the intersection of the two passageways 154, 158.
  • the block 150 and the piston head 166 are made of any suitable material such as, for example, a polymer, for example polyoxymethylen.
  • the top wall 116 of the block 150 has a tapered opening 118 that defines a tunnel to assist in introducing the electrically heated smoking article 132 into the device.
  • Air flow through the rod end of the electrically heated smoking article 132 may be blocked by piston 170 such that no air flow equivalent to the arrow 42 in Figure 1 passes through the electrically heated smoking article 132.
  • an electrically heated smoking article 132 is introduced into the chamber 110 through the tapered opening 118 in the block 150.
  • the cylinder 174 then moves the piston head 166 to block the vertical passageway 154 as the sleeves 126, 128 fix the electrically heated smoking article 132 in position within the chamber 110.
  • Valve 140 is opened and air is drawn through the electrically heated smoking article 132, at a constant flow rate of 17.5 ml/s along the path shown by the dashed arrow 144 in Figure 2 .
  • the air flow 144 passes through duct 138, into space 134, into the electrically heated smoking article 132 through the perforations 146, through the electrically heated smoking article 132 and out through ducts 122 and 124 for determination of resistance-to-draw by the pressure sensor 125.
  • the device illustrated in Figure 2 may be used to measure resistance-to-draw of smoking articles other than electrically heated smoking articles that require a blocked end. It may also be used to measure resistance-to-draw of conventional smoking articles by leaving the vertical passageway open. In which case, the resistance-to-draw and the ventilation may be measured in the same manner as previously described with respect to Figure 1 .
EP07252688A 2007-07-04 2007-07-04 Vorrichtung zur Messung des Zugwiderstands Ceased EP2011409A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP07252688A EP2011409A1 (de) 2007-07-04 2007-07-04 Vorrichtung zur Messung des Zugwiderstands
PCT/IB2008/002616 WO2009004493A2 (en) 2007-07-04 2008-06-04 Resistance-to-draw measuring device
AT08826063T ATE525922T1 (de) 2007-07-04 2008-06-04 Messgerät für einen aufzuzeichnenden widerstand
DK08826063.3T DK2164352T3 (da) 2007-07-04 2008-06-04 Trækmodstandsdygtighedsmåleindretning
PT08826063T PT2164352E (pt) 2007-07-04 2008-06-04 Dispositivo de medição da resistência à extracção
EP08826063A EP2164352B1 (de) 2007-07-04 2008-06-04 Messgerät für einen aufzuzeichnenden widerstand
PL08826063T PL2164352T3 (pl) 2007-07-04 2008-06-04 Urządzenie mierzące opór zaciągania
ES08826063T ES2373829T3 (es) 2007-07-04 2008-06-04 Dispositivo de medición de la resistencia a la aspiración.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07252688A EP2011409A1 (de) 2007-07-04 2007-07-04 Vorrichtung zur Messung des Zugwiderstands

Publications (1)

Publication Number Publication Date
EP2011409A1 true EP2011409A1 (de) 2009-01-07

Family

ID=38780827

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07252688A Ceased EP2011409A1 (de) 2007-07-04 2007-07-04 Vorrichtung zur Messung des Zugwiderstands
EP08826063A Active EP2164352B1 (de) 2007-07-04 2008-06-04 Messgerät für einen aufzuzeichnenden widerstand

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08826063A Active EP2164352B1 (de) 2007-07-04 2008-06-04 Messgerät für einen aufzuzeichnenden widerstand

Country Status (7)

Country Link
EP (2) EP2011409A1 (de)
AT (1) ATE525922T1 (de)
DK (1) DK2164352T3 (de)
ES (1) ES2373829T3 (de)
PL (1) PL2164352T3 (de)
PT (1) PT2164352E (de)
WO (1) WO2009004493A2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102240069A (zh) * 2011-06-22 2011-11-16 中国烟草总公司郑州烟草研究院 测定卷烟机剔除梗签物中含烟丝量的仪器
DE102014207277A1 (de) * 2014-04-15 2015-10-15 Hauni Maschinenbau Ag Elektrisches Rauchprodukt sowie Vorrichtung zur Herstellung von elektrischen Rauchprodukten
WO2015180089A1 (zh) * 2014-05-29 2015-12-03 吉瑞高新科技股份有限公司 电子烟性能测试装置及测试方法
CN107436338A (zh) * 2017-09-01 2017-12-05 河南中烟工业有限责任公司 一种卷烟燃烧过程中动态吸阻稳定性的评价方法
CN108362608A (zh) * 2018-03-22 2018-08-03 中国科学院合肥物质科学研究院 一种集开放吸阻与封闭吸阻测量的卷烟吸阻自动化装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690149A (en) * 1969-07-09 1972-09-12 Giovanni Pezzi Electropneumatic cigarette inspection
FR2344237A1 (fr) * 1976-03-16 1977-10-14 Molins Ltd Perfectionnements apportes a la fabrication des cigarettes
GB2018433A (en) * 1978-03-22 1979-10-17 Cir Spa Divisione Sasib Method for testing cigarettes
US4279144A (en) * 1978-09-01 1981-07-21 Molins Limited Testing ventilated cigarettes
GB2203845A (en) * 1987-04-16 1988-10-26 Japan Tobacco Inc Sample supporting device for a ventilation test apparatus
EP1018643A1 (de) * 1998-07-22 2000-07-12 Japan Tobacco Inc. Vorrichtung zur messung von belüftungseigenschaften
DE10239195A1 (de) * 2002-08-21 2004-03-04 Focke Gmbh & Co. Kg Verfahren und Vorrichtung zum Prüfen von (Filter-)Zigaretten
EP1529451A1 (de) * 2002-08-12 2005-05-11 Japan Tobacco Inc. Inspektionsgerät für filterzigaretten

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690149A (en) * 1969-07-09 1972-09-12 Giovanni Pezzi Electropneumatic cigarette inspection
FR2344237A1 (fr) * 1976-03-16 1977-10-14 Molins Ltd Perfectionnements apportes a la fabrication des cigarettes
GB2018433A (en) * 1978-03-22 1979-10-17 Cir Spa Divisione Sasib Method for testing cigarettes
US4279144A (en) * 1978-09-01 1981-07-21 Molins Limited Testing ventilated cigarettes
GB2203845A (en) * 1987-04-16 1988-10-26 Japan Tobacco Inc Sample supporting device for a ventilation test apparatus
EP1018643A1 (de) * 1998-07-22 2000-07-12 Japan Tobacco Inc. Vorrichtung zur messung von belüftungseigenschaften
EP1529451A1 (de) * 2002-08-12 2005-05-11 Japan Tobacco Inc. Inspektionsgerät für filterzigaretten
DE10239195A1 (de) * 2002-08-21 2004-03-04 Focke Gmbh & Co. Kg Verfahren und Vorrichtung zum Prüfen von (Filter-)Zigaretten

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102240069A (zh) * 2011-06-22 2011-11-16 中国烟草总公司郑州烟草研究院 测定卷烟机剔除梗签物中含烟丝量的仪器
CN102240069B (zh) * 2011-06-22 2013-05-08 中国烟草总公司郑州烟草研究院 测定卷烟机剔除梗签物中含烟丝量的仪器
DE102014207277A1 (de) * 2014-04-15 2015-10-15 Hauni Maschinenbau Ag Elektrisches Rauchprodukt sowie Vorrichtung zur Herstellung von elektrischen Rauchprodukten
WO2015180089A1 (zh) * 2014-05-29 2015-12-03 吉瑞高新科技股份有限公司 电子烟性能测试装置及测试方法
CN107436338A (zh) * 2017-09-01 2017-12-05 河南中烟工业有限责任公司 一种卷烟燃烧过程中动态吸阻稳定性的评价方法
CN107436338B (zh) * 2017-09-01 2019-09-20 河南中烟工业有限责任公司 一种卷烟燃烧过程中动态吸阻稳定性的评价方法
CN108362608A (zh) * 2018-03-22 2018-08-03 中国科学院合肥物质科学研究院 一种集开放吸阻与封闭吸阻测量的卷烟吸阻自动化装置

Also Published As

Publication number Publication date
DK2164352T3 (da) 2012-01-16
WO2009004493A3 (en) 2009-04-30
EP2164352A2 (de) 2010-03-24
ATE525922T1 (de) 2011-10-15
ES2373829T3 (es) 2012-02-09
WO2009004493A2 (en) 2009-01-08
EP2164352B1 (de) 2011-09-28
PL2164352T3 (pl) 2012-02-29
PT2164352E (pt) 2011-12-30

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