• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    smoking article with dual function lid. the present invention relates to a smoking article (10, 100) which is formed from two parts. these parts are a rod (20, 120) comprising an aerosol forming substrate (55, 155) and a removable cap (30, 130). the removable cap (30, 130) can be attached to the rod (20, 120) in two configurations. in a first configuration, the removable cap (30, 130) is coupled to a first end (21, 121) of the rod (20, 120) and a heat source (50, 150) located at or near a second end of the rod (20,120) heats the aerosol forming substrate (55, 155) to generate an inhalable aerosol. in a second configuration, the removable cap is coupled to the second end (22, 122) of the rod (20, 120) and at least substantially covers the heat source (50, 150). the smoking article (10, 100) is arranged in the second configuration for disposal.
    公开号:BR112014016826B1
    申请号:R112014016826-1
    申请日:2013-01-08
    公开日:2021-08-24
    发明作者:Christopher John Grant
    申请人:Philip Morris Products S.A；
    IPC主号:
    专利说明:

    [001] The present invention relates to a smoking article comprising a cap that can act as a mouthpiece for the smoking article during consumption of the smoking article, and can be transferred to the lit end of the smoking article for protect and extinguish the lit end for disposal.
    [002] Known smoking articles such as conventional lit-end cigarettes can combust or pyrolyze a smokable material, generally tobacco, to generate an inhalable aerosol. Tobacco burning temperatures can reach up to about 900 degrees Celsius. Once the cigarette has been consumed, its lit end is usually extinguished, putting out the burning of the tobacco.
    Smoking articles in which tobacco is heated rather than burned are also known in the art. One purpose of such heated smoking articles is to reduce known harmful smoke components produced by the combustion and pyrolytic degradation of tobacco, as found in conventional lit end cigarettes. In heated smoking articles, an aerosol is generated by heating a substrate that releases the volatile compounds, such as, for example, an aroma-generating substrate or aerosol-forming substrate, for example, a substrate comprising tobacco. Known heated smoking articles include, for example, smoking articles in which an aerosol is generated by transferring heat from a flammable element or heat source to a physically separate aerosol forming substrate. The aerosol forming substrate can be located within, about, or downstream of the heat source. During smoking, volatile compounds are released from the aerosol forming substrate by heat transfer from the heat source and entrained in air drawn through the smoking article. As the volatile compounds cool, they condense to form an aerosol that is inhaled by the consumer.
    [004] A special category of heated smoking articles are distillation based smoking articles. For example, WO-A-2009/022232 describes a distillation-based smoking article consisting of a flammable heat source, an aerosol forming substrate downstream of the flammable heat source and a heat conducting element around and in contact with a rear of the flammable heat source and a front adjacent to the aerosol forming substrate.
    [005] During use of a heated smoking article, the heat source can reach high temperatures. For example, a heat source of a heated smoking article can reach an average temperature of about 500° Celsius and, in certain cases, the temperature of the heat source can reach up to about 800° Celsius.
    [006] After use, the two conventional lit-end cigarettes and heated smoking articles comprising a heat source, for example, a heat sink, a chemical heat source or a flammable heat source, should be properly extinguished or shielded to allow sufficient cooling to facilitate disposal.
    [007] It is an object of the present invention to provide an appropriate means to facilitate the disposal of a smoking article after use. Advantageously, such a means has dual functionality and is suitable to serve as a mouthpiece during use and as a means to facilitate disposal after use.
    As used herein, the terms "aerosol generating article" or "smoking article" refer to an article comprising an aerosol-forming substrate that is capable of releasing volatile compounds that can form an aerosol. . For example, an aerosol generating article may be a smoking article that generates an aerosol that is directly inhalable into a user's lungs through the user's mouth. An aerosol generating article may be disposable. The term "smoking article" is generally used below.
    [009] A smoking article may be a heated smoking article, which is a smoking article comprising an aerosol-forming substrate that is intended to be heated rather than burned in order to release volatile compounds that may form an aerosol. The aerosol formed by heating the aerosol forming substrate may contain fewer known harmful constituents than would be produced by combustion or pyrolytic degradation of the aerosol forming substrate. A smoking article may be a flammable smoking article, which is a smoking article that releases an aerosol by direct combustion of an aerosol-forming substrate, for example, as in a conventional cigarette. A heated smoking article may comprise a flammable heat source that heats the aerosol forming substrate.
    [0010] The term "flammable heat source" refers to a flammable material, which is physically separate from the aerosol forming substrate in a heated smoking article. The flammable heat source may be a carbon-based material, which can be burnt, and which upon combustion heats an aerosol forming substrate without burning the aerosol forming substrate.
    [0011] As used herein, the term "aerosol-forming substrate" refers to a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds can be released by heating the aerosol forming substrate. An aerosol forming substrate can be solid or liquid, or both comprise solid and liquid components. An aerosol forming substrate can be adsorbed, coated, impregnated or otherwise loaded onto a vehicle or support. An aerosol forming substrate may conveniently form part of an aerosol generating article or a smoking article.
    [0012] An aerosol forming substrate may comprise nicotine. An aerosol forming substrate may comprise tobacco, for example it may comprise a tobacco containing material containing volatile tobacco flavor compounds which are released from the aerosol forming substrate upon heating. In preferred embodiments, an aerosol forming substrate can include homogenized tobacco material, for example, cast sheet tobacco. An aerosol forming substrate can comprise at least one aerosol former, such as propylene glycol or glycerin. In a flammable smoking article, an aerosol forming substrate can be conventional tobacco. A smoking article can be, or can comprise a tobacco strip.
    [0013] According to one aspect of the invention, there is provided a smoking article, comprising: a rod, having a first end and a second end; and a removable cover. The cap is detachably attachable to both the first end and the second end of the rod. In a first configuration of the smoking article, the removable cap is coupled to the first end of the rod such that air can be drawn from the rod through the removable cap. In a second configuration of the smoking article, the removable cap is coupled to the second end of the rod such that the second end is at least substantially covered by the removable cap. In the second configuration, the cap facilitates disposing of the smoking article after use.
    [0014] The term "detachably detachable" is used herein to mean that the detachable cap is capable of being detachable, secured to the first end and the second end of the rod of the smoking article. The removable cover may be releasably attachable to one or both of the first and second end of the rod by means of mechanical attachment (eg, an adjustment screw, bayonet attachment, hook and loop attachment, etc.) or by non-mechanical fastening means (eg a non-permanent glue) or by a combination of mechanical fastening means and the non-mechanical fastening means. Preferably, the removable cap is removably attachable to one or both of the first end and the second end of the rod by an interference fit. For example, the removable cap may be removably attachable to one or both of the first end and the second end of the rod by an interference fit between the outer surface of the rod and an inner surface of the removable cover.
    [0015] In the second configuration of the smoking article, the removable cap preferably at least substantially covers the second end of the rod, so as to facilitate disposal of the smoking article.
    [0016] The removable cap may comprise one or more materials that thermally protect the second end of the rod. Alternatively or in addition, the removable cap may comprise one or more materials which in other ways limit the transfer of energy from a heat source located at or near the second end of the rod. Preferably, when coupled to the second end of the rod, the removable cap reduces the propensity for ignition of the smoking article on disposal, thus facilitating disposal of the smoking article after use. In some embodiments, when coupled to the second end of the rod, the removable cap reduces the temperature of the second end of the rod such that the smoking article is comfortable to the touch and thus facilitates disposal of the smoking article after use.
    [0017] In some embodiments, the removable cover may comprise means for dissipating heat energy from a heat source located at or near the second end of the rod. For example, the removable cover may comprise one or more thermally conductive materials to dissipate heat energy by thermal conduction.
    [0018] In some embodiments, the removable cap may comprise means for thermally insulating a heat source located at or near the second end of the rod from the environment. For example, the removable cap may comprise one or more thermally insulating materials that act as a thermal barrier to prevent the transfer of thermal energy from a heat source located at or near the second end of the rod. Suitable thermally insulating materials have a low thermal conductivity or substantially no thermal conductivity.
    [0019] In some embodiments, the removable cover may comprise a combination of heat dissipation means and thermal insulation.
    [0020] The first end of the rod may be called a mouth end of the rod, as it is the end closest to the rod to a user's mouth when the smoking article is being consumed. The second end of the nail can be called a distal end of the nail, and is located at the end opposite the nail from the end of the mouth.
    [0021] It may be an advantage that the removable cap is able to function as a mouthpiece of the smoking article by being coupled to the mouth end of the rod in the first configuration of the smoking article. When the removable cap is attached to the mouth end of the rod in the first configuration of the smoking article, a user does not need to look for a separate or separate additional component to engage the second end of the rod upon disposal of the smoking article.
    [0022] The outer surface of the removable cap is preferably made from one or more materials that are acceptable for the consumer to touch and conform to all applicable regulatory requirements when the removable cap is used as a mouthpiece for the smoking article.
    [0023] In preferred embodiments, the smoking article comprises a flammable heat source located at or near the second end of the rod. In such embodiments, in the second configuration of the smoking article, the removable cover at least substantially covers the heat source and significantly reduces or eliminates any potential ignition risk posed by the heat source. Preferably, the removable cover surrounds and extinguishes the heat source, for example, eliminating or limiting the supply of oxygen to the heat source.
    [0024] Preferably, in the second configuration, the ignition propensity of the smoking article is sufficiently low so that the smoking article can be discarded without risk of causing a fire. In the second configuration, the removable cap can lower the temperature of the second end of the rod sufficiently so that the smoking article is comfortable to the touch.
    [0025] In the embodiments of smoking articles which are heated smoking articles in which heat is generated by combustion of a solid heat source, the heat source may comprise any suitable flammable fuel, including, but not limited to, carbon and carbon-based materials containing aluminum, magnesium, one or more carbides, one or more nitrites, and combinations thereof. Solid flammable heat sources for heated smoking articles and methods for producing such heat sources are known in the art and described in, for example, US-A-5,040,552 and US-A-5,595,577. Typically, known solid flammable heat sources for heated smoking articles are carbon based, i.e. they comprise carbon as a primary flammable material.
    [0026] In the embodiments of smoking articles that are conventional lit-end cigarettes, the heat source will be a tobacco volume.
    [0027] By covering the heat source with the removable cover while the heat source is burning or hot, a barrier is formed that can help prevent the heat source from igniting materials adjacent to the heat source. Thus, the heat source can be protected by the removable cover until it has cooled to a sufficiently low temperature to significantly reduce or eliminate any potential risk associated with improper handling of the smoking article, such as the potential risk of igniting adjacent materials . In order to act as a barrier, the removable cover may comprise one or more suitable barrier materials that act to insulate the heat source.
    [0028] A suitable barrier material may be a substantially non-flammable material or a substantially flame-retardant material. Preferably, the barrier material is thermally stable in air at the maximum temperature reached by the heat source of the smoking article. Suitable barrier materials can, for example, include metallic materials or ceramic materials.
    [0029] A smoking article can remain lit for a period of about 4 minutes to about 8 minutes before it has spent its flammable material. While the heat source cools or while the remaining flammable material is being burned, the formation of hot spots on the removable cover must be avoided. To reduce or prevent the formation of hot spots on the lid, it may be advantageous to spread any remaining thermal energy from the heat source after consumption of the smoking article over a large area. Thus, in some embodiments, the removable cover can comprise a thermally conductive material that can efficiently spread thermal energy from a heat source over a wide thermal conduction area. Suitable thermally conductive materials can, for example, include metallic sheets or graphite sheets, or other materials that have a high thermal conductivity.
    [0030] It may be advantageous for the removable cover to comprise one or more thermal barrier materials that act to thermally insulate the heat source since the removable cover has been coupled to the second end of the rod. A thermal barrier material can help prevent heat transfer from the heat source to an external surface of the smoking article and to the external environment. Thus, in some embodiments, the removable cover may comprise, for example, a thermal insulating material to thermally insulate the heat source. Suitable thermal insulation materials can include, for example, cardboards, foams, polymers or ceramic materials or other materials that have a low thermal conductivity.
    [0031] The removable cap may comprise one or more materials that undergo a phase change when heated, for example when the removable cap is coupled to the second end of the rod. The removable cover may comprise one or more materials that melt and extinguish the heat source by which it flows over the heat source and eliminating or limiting the supply of oxygen to the heat source. The removable cover may comprise one or more materials that undergo an endothermic or phase change reaction and consume the heat energy produced by the heat source, thereby cooling the heat source. The removable cover can comprise one or more materials that decompose when brought into contact with the heat source and produce a decomposition product that extinguishes the heat source. Examples of materials that can undergo a phase change when in close proximity to a heat source include, for example, certain polymers and waxes.
    [0032] The removable cover may comprise one or more materials selected from the group consisting of barrier materials, non-combustible materials, flame retardant materials, thermally conductive materials, thermal insulation materials, foam materials, changeover materials. phase, metallic materials and ceramic materials. For example, the removable cover can comprise one or more materials selected from the group consisting of non-combustible materials, flame retardant materials, thermally conductive materials, and thermally insulating materials.
    [0033] In some embodiments, the removable cover may comprise a combination of different materials. For example, the removable cover can comprise a flame retardant material, a thermally conductive material and a thermally insulating material all arranged as separate layers of the removable cover.
    [0034] The removable cap can define a sheath to receive a rod. In some embodiments, the removable cap may comprise a tubular sheath, the tubular sheath being sized to receive both the first end and the second end of the rod to allow the removable cap to be coupled to one or the other of the first and second ends. of the rod. For example, the smoking article may comprise a substantially cylindrical rod and the removable cap may comprise a substantially tubular sheath sized to receive one end of the rod. In other words, the sheath is sized to receive the first end of the rod and the second end of the rod. Preferably, the sheath forms a tight interference fit when coupled to the first end and the second end of the rod.
    [0035] In some embodiments, the sheath may be formed from, or coated with, one or more materials selected from the group consisting of barrier materials, non-combustible materials, flame retardant materials, thermally conductive materials, materials of thermal insulation, foam materials, phase change materials, metallic materials and ceramic materials. For example, the tubular sheath can be formed from, or coated with, one or more materials selected from the group consisting of aluminum foil, graphite, phase change materials and foams.
    [0036] In some preferred embodiments, the sheath may be coated with a layer of metallic foil, eg aluminum foil. In some embodiments, the sheath may be lined with a layer of polymeric foam that acts as a thermal barrier to the passage of heat from a heat source.
    [0037] In some embodiments, the sheath may be lined with a layer of metallic foil, which acts both as a flame retardant material to insulate a heat source and as a thermally conductive material to spread thermal energy to rapidly dissipate heat from the heat source and prevent the formation of hot spots. The sheath may also be coated with a layer of a thermally insulating material, such as cardboard or polymeric foam, to act as a thermal barrier. In such embodiments, it is preferable for the sheet metal layer to form an inner layer in contact with the rod when the removable cap is coupled to the rod. Thus, in the second configuration of the smoking article, the foil layer can act to protect the thermal insulation material from direct contact with the heat source. In this way, the combustible materials in the thermal insulation material can be sufficiently protected from the heat source to be used as a thermal barrier material in the removable cover.
    [0038] In some embodiments, the sheath may comprise a combination of different materials. For example, the sheath may include a flame retardant material, a thermally conductive material and a thermally insulating material all arranged as separate layers of the sheath.
    [0039] In some embodiments, the removable cover may comprise one or more thermochromatic pigments or materials that change color with respect to temperature. This has the advantage of providing a user with a visual prompt to take care when handling the smoking article. Furthermore, the use of a pigment or thermochromatic material can provide a simple visual indication of when the smoking article has reached a temperature that is low enough to be discarded without further precautions.
    [0040] In some embodiments, a removable cover portion may be formed from one or more thermochromatic materials, for example, from a thermochromatic polymer. In some embodiments, the removable cover can be wrapped in wrapping paper, which comprises one or more thermochromatic pigments.
    [0041] In some embodiments, a pigment or thermochromatic material may be included in a portion of the removable cover in order to avoid or limit potential contact between the pigment or thermochromatic material and a user's lips when the removable cover is used as a mouthpiece. If a pigment or thermochromatic material is included in a part of the removable cap in a way that allows for potential contact between the pigment or thermochromatic material and a user's lips, when the removable cap is used as a mouthpiece, the pigment or thermochromatic material included it is preferably for oral administration.
    [0042] Preferably, the removable cap acts to close the second end of the rod, in the second configuration of the smoking article. This can help eliminate or restrict the supply of oxygen to the heat source. This can also help to trap ash or unpleasant odors at the second end of the rod.
    [0043] In some embodiments, the rod comprises a material containing tobacco.
    [0044] Preferably, the smoking article comprises an aerosol forming substrate. In preferred embodiments, a flammable heat source is located at or near the second end of the rod, and the rod comprises an aerosol forming substrate located between the first and second ends.
    [0045] The aerosol forming substrate may be a solid aerosol forming substrate. Alternatively, the aerosol former substrate can comprise both solid and liquid components. The aerosol forming substrate can comprise a tobacco-containing material containing volatile tobacco flavor compounds which are released from the substrate upon heating. Alternatively, the aerosol forming substrate may comprise a material other than tobacco. The aerosol forming substrate can further include one or more aerosol formers. Examples of suitable aerosol formers include, but are not limited to, glycerine and propylene glycol.
    [0046] If the aerosol forming substrate is a solid aerosol forming substrate, the solid aerosol forming substrate may include, for example, one or more of: powder, granules, pellets, shreds, spaghetti strands, strips or sheets that contain one or more of: grass, tobacco leaf, tobacco beam fragments, reconstituted tobacco, homogenized tobacco, extruded tobacco, and expanded tobacco. The solid aerosol forming substrate can be in loose form, or it can be supplied in a suitable container or cartridge. For example, the aerosol forming material of the solid aerosol forming substrate can be contained within a paper or other wrapper and is in the form of a plug. When an aerosol-forming substrate is in the form of a tampon, the entire tampon, including any envelope, is considered to be the aerosol-forming substrate.
    Optionally, the solid aerosol forming substrate may contain additional volatile tobacco or non-tobacco flavor compounds to be released upon heating the solid aerosol forming substrate. The solid aerosol forming substrate may also contain capsules which, for example, include additional tobacco or non-tobacco flavor volatile compounds and such capsules may melt during heating of the solid aerosol forming substrate.
    [0048] Optionally, the solid aerosol forming substrate can be supplied to or incorporated into a thermally stable vehicle. The vehicle may take the form of powder, granules, pellets, fragments, spaghetti strands, flakes or sheets. The solid aerosol forming substrate can be deposited onto the surface of the vehicle in the form of, for example, a sheet, foam, gel or slurry. The solid aerosol forming substrate may be deposited over the entire surface of the vehicle, or, alternatively, may be deposited in a pattern so as to provide non-uniform flavor release during use.
    [0049] The smoking article may comprise a transfer element or transfer section. Such an element may take the form of a hollow tube which is located downstream of an aerosol-forming substrate within the rod.
    [0050] The terms "upstream" and "downstream" as used herein refer to relative positions along a defined smoking article with reference to the direction in which air is drawn through the smoking article by a user. Thus, the first end, or the end of the mouth, is downstream of the second end, or the distal end.
    [0051] The elements forming the smoke rod are preferably assembled by means of a suitable wrapper, for example a cigarette paper. A cigarette paper can be any material suitable for packaging components of a smoking article in the form of a rod. The cigarette paper must grip the component elements of the smoking article when the article is assembled and hold it in position within the rod. Suitable materials are well known in the art.
    [0052] The smoking article may be substantially cylindrical in shape. The smoking article can be substantially elongated. The smoking article may have a length and circumference substantially perpendicular to the length.
    [0053] The aerosol forming substrate may be substantially cylindrical in shape. The aerosol forming substrate can be substantially elongated. The aerosol forming substrate may also have a length and circumference substantially perpendicular to the length. The aerosol forming substrate may be located in the smoking article such that the length of the aerosol forming substrate is substantially parallel to the direction of air flow in the smoking article.
    [0054] The section or the transfer element can be substantially elongated.
    [0055] The smoking article can be of any desired length. For example, the smoking article can have an overall length of between about 65 mm and approximately 100 mm when the rod and the removable cap are coupled.
    [0056] The smoking article can have any desired outside diameter. For example, the smoking article can have an outside diameter between about 5 mm and about 12 mm.
    [0057] The removable cover may comprise a filter. When the removable cover comprises a filter, the filter is preferably positioned such that when the removable cover is coupled to the first end of the rod in the first configuration, air can be drawn from the rod through the filter.
    [0058] For example, the removable cap may comprise a filter cap having one or more segments. When the removable cap comprises a filter plug, preferably the filter plug is a single segment filter plug. In some embodiments, the removable cap may comprise a filter plug that is located at the downstream end of the removable cap when the removable cap is coupled to the first end of the rod in the first configuration of the smoking article.
    [0059] The filter pad may comprise one or more segments comprising cellulose acetate, paper or other suitable known filtering materials, or combinations thereof. Preferably, the filter plug comprises filtration material of low filtration efficiency. Any filtration material included in the removable cover must not compromise the functionality of the removable cover when attached to the second end of the rod in the second configuration.
    [0060] The removable cap can be circumscribed by an outer wrapping of, for example, cigarette paper, which has a low air permeability. Alternatively or in addition, the removable cover can be circumscribed by edge paper.
    [0061] According to a further aspect of the invention there is provided a removable cover for a smoking article. The cap is removably attachable to both a first end and a second end of a rod comprising an aerosol-forming substrate for forming the smoking article. The cap is configured in such a way that when coupled to the first end of the rod air can be drawn from the rod through the cap, and when coupled to the second end of the rod the cap facilitates disposal of the smoking article after use of the smoking article.
    [0062] The removable cap preferably reduces the propensity for ignition of the smoking article when coupled to the second end of the rod.
    [0063] The second end is at least substantially covered by the removable cap when the cap is coupled to the second end of the rod.
    [0064] The removable cover may comprise one or more materials selected from the group consisting of barrier materials, non-combustible materials, flame retardant materials, thermally conductive materials, thermal insulation materials, foam materials, changeover materials. phase, metallic materials and ceramic materials. For example, the removable cover can comprise one or more materials selected from the group consisting of non-combustible materials, flame retardant materials, thermally conductive materials, and thermally insulating materials.
    [0065] In preferred embodiments, the removable cap comprises a tubular sheath. The tubular sheath is sized to receive both the first end and the second end of the rod to allow the removable cap to be coupled to one or the other of the first end and the second end of the rod.
    [0066] Tubular can be formed from, or coated with, one or more materials selected from the group consisting of aluminum foil, graphite, phase change materials, and foams.
    [0067] The removable cap is preferably a component of a smoking article. The removable cap can form a component part of a smoking article as described herein.
    [0068] According to another aspect of the invention there is provided the use of a removable cap according to the invention, such as a mouthpiece, when coupled to a first end of a rod comprising an aerosol forming substrate, and as a means to facilitate the arrangement of the rod when coupled to a second end of the rod after use.
    [0069] According to another aspect of the invention, there is provided a smoking system or a kit comprising a plurality of rods and one or more removable covers. The rods can be coupled to a removable cap to form smoking articles.
    [0070] In preferred embodiments, a flammable heat source is located at or near the second end of each of the rods, and each of the rods comprises an aerosol forming substrate located between the first and second ends.
    [0071] According to another aspect of the invention, there is provided a method of using a smoking article comprising a rod having a first end and a second end and a removable cap coupled to the first end of the rod. The method comprises the steps of applying a heat source to the second end of the rod, drawing air from the rod through the removable cap, removing the removable cap from the first end of the rod, and attaching the removable cap to the second end of the rod such that the second end of the rod is at least substantially covered by the removable cap.
    [0072] Preferably, the step of applying a heat source to the second end of the rod involves igniting a flammable heat source located at or near the second end of the rod.
    [0073] Preferably, the step of attaching the removable cap to the second end of the rod at least substantially covers the heat source and preferably extinguishes any ignited material at the second end of the rod.
    [0074] The method can be used with any smoking article or a removable cover as described herein.
    [0075] According to another aspect of the invention, there is provided a method for facilitating the disposal of a smoking article comprising a rod comprising a heat source and an aerosol forming substrate after use. The method comprises providing a removable cap which is removably attachable to a first end of the stem such that air can be drawn from the stem through the cap and removable releasably attachable to a second end of the stem such that the source of heat is at least substantially covered by the removable cover.
    [0076] The method can be used with any smoking article or a removable cover as described herein.
    [0077] The features described in relation to one aspect of the invention may also be applicable to other aspects of the invention.
    [0078] Specific embodiments of the invention will now be described with reference to the figures, in which; Figure 1 is a schematic cross-sectional diagram of a first embodiment of a smoking article comprising a rod and a removable cap in a first configuration; Figure 2 is a schematic cross-sectional diagram of the smoking article of Figure 1; wherein the rod and the removable cap have been separated; Figure 3 is a schematic cross-sectional diagram of the smoking article of Figure 1 in a second configuration; Figure 4 is a schematic cross-sectional diagram of the removable cover of the smoking article Figure 1; Figure 5 is a schematic cross-sectional diagram of a second embodiment of a smoking article comprising a rod and a removable cap in a first configuration; and Figure 6 is a schematic cross-sectional diagram of the smoking article of Figure 5 in a second configuration.
    [0079] Figures 1, 2 and 3 illustrate a smoking article 10, according to a first embodiment of the invention. The smoking article 10 comprises two separable component parts, a rod 20 and a removable cap 30. The rod 20 has a first end or mouth end 21 and a second end or distal end 22.
    [0080] The removable cap 30 can be coupled to the rod 20 in a first configuration, in which the removable cap 30 is coupled to the mouth end 21 of the rod 20, as illustrated in Figure 1. The removable cap 30 can be coupled to the rod 20 in a second configuration wherein the removable cap 30 is coupled to the distal end 22 of the rod 20, as illustrated in Figure 3.
    The rod 20 is comprised of three elements circumscribed by a cigarette paper 40. The three elements are a flammable heat source 50, an aerosol forming substrate 55, and a transfer element 60. These three elements are arranged sequentially and in coaxial alignment and are assembled by cigarette paper 40 to form rod 20.
    [0082] When assembled, rod 20 is between about 65mm and about 90mm in length and has an outside diameter between about 7.2mm and about 7.9mm.
    [0083] The aerosol forming substrate 55 is located upstream of the transfer element 60. The aerosol forming substrate 55 comprises tobacco wrapped in a filter paper (not shown) to form a plug. Tobacco includes additives, including glycerin as an aerosol-forming additive.
    [0084] The flammable heat source 50 is located upstream of, and in contact with, the aerosol forming substrate 55. In alternative embodiments (not shown), a thermally conductive element, such as a metal sheet, may be disposed. circumferentially around a flammable heat source portion and an aerosol forming substrate portion to facilitate heat transfer from the flammable heat source to the aerosol forming substrate.
    [0085] The transfer element 60 is a hollow tube made of filter paper. Transfer element 60 receives evolved volatile compounds from aerosol forming substrate 55 and allows these compounds to condense to form an aerosol. The transfer element 60 also facilitates the transfer of the aerosol towards a user's mouth and provides the rod 20 with an appropriate length.
    The removable cover 30 comprises a filter 31 and a tubular sheath 32 surrounded by a filter paper 33. The filter 31 is a conventional nozzle filter formed from cellulose acetate, and having a length of between about 7mm and about 10mm. Removable cover 30 may be circumscribed by edge paper (not shown).
    [0087] The structure of the removable cover 30 is shown in greater detail in Figure 4. The tubular sheath 32 consists of an air chamber 35 formed from aluminum foil having a thickness of about 20 microns. An outer tube 36 is placed concentrically on the outside of the inner tube 35 and is formed from cardboard with a thickness of about 0.2 mm. The sheath 32 abuts one face of the filter 31 and the two elements are circumscribed by the filter paper 33.
    [0088] In a first configuration of the smoking article, the removable cap 30 is coupled to the mouth end 21 of the rod 20, as illustrated in Figure 1. In the first configuration, the mouth end 21 of the rod 20 is received inside of the tubular sheath 32 of the removable cap 30 to form the smoking article. Removable cap 30 and rod 20 are held in the first configuration by an interference fit between the outer surface of rod 20 and an inner surface of tubular housing 32.
    [0089] To consume the smoking article, a user ignites the flammable heat source 50 and then draws air through the smoking article 10 from a mouth end 38 of the removable cap 30. heat 50 rises and passes thermal energy to the aerosol forming substrate 55 through processes such as conduction and convection. An aerosol generated from the aerosol forming substrate passes along the transfer element 60, via the filter 31, and is inhaled by the user.
    [0090] The user repeatedly pulls or blows on the smoking article and consumes the aerosol generated from the aerosol forming substrate 55.
    [0091] When the smoking article has been consumed, the removable cap 30 is detached from the rod 20 by sliding the rod 20 out of the tubular sheath 32, as illustrated in Figure 2.
    [0092] The removable cap 30 is then coupled to the distal end 22 of the rod 20, in a second configuration of the smoking article 10, as illustrated in Figure 3. In a second configuration, the distal end 22 of the rod 20 is received within the tubular sheath 32 of the removable cap 30 and the distal end 22 of the rod 20 is covered by the removable cap 30.
    [0093] In the second configuration, the front part of the flammable heat source 50 can come into contact with the filter 31. The thermal energy radiated and conducted from the flammable heat source 50 is spread over the surface of the tubular sheath 32 by the tube inside the thermally conductive aluminum foil 35 of the tubular sheath 32. This prevents the formation of hot spots on the removable cover 30.
    [0094] In the second configuration, the outer thermally insulating tube 36 of the tubular sheath 32 of the removable cover 30 insulates the outer surface of the smoking article 10 from heat from the flammable heat source 50. In a second configuration, the removable cover 30 facilitates disposition of smoking article 10. More preferably, smoking article 10 of the second configuration can be discarded without significant risk of igniting other materials.
    [0095] A second embodiment of a smoking article according to the invention is illustrated in Figures 5 and 6. The smoking article 100 of the second specific embodiment comprises two component parts, a rod 120 and a removable cap 130.
    [0096] The rod 120 comprises an aerosol forming substrate 155 wrapped in a cigarette paper 160, to form the rod 120. The aerosol forming substrate 155 is tobacco, and the rod 120 is effectively a free cigarette. conventional filter. Rod 120 has a mouth end 121 closest to a user's mouth when the smoking article is to be consumed, and a distal end 122 at an opposite end of rod 120 to mouth end 121. Removable cap 130 is identical to the removable cap (reference number 30) described above with respect to the first embodiment of the invention shown in Figures 1 to 4. In a first configuration, the mouth end 121 of the rod 120 is received within the tubular sheath 32 of the cap. removable 30 to form smoking article 100.
    [0097] To consume the smoking article 100, a user places a mouth end 138 of the removable cap 130 in their mouth. Distal end 122 of rod 120 is then ignited and the user draws air through the smoking article. A tobacco portion 155 at the distal end 122 of the rod 120 combusts and becomes a heat source 150 for the formation of an inhalable aerosol from the tobacco 155.
    [0098] The user consumes the smoking article 100 by pulling or blowing on the mouth end 138 of the removable cap 130. An inhalable aerosol is generated within the rod 120, passes through the filter 131 of the removable cap 130, and is inhaled by the user. Each successive puff causes a burn line or a char line 190 to move the fresh unburnt tobacco 155 downstream. Consequently, the rod 120 becomes shorter with each puff.
    [0099] Once the smoking article 100 has been consumed, the removable cap 120 is removed from debris from the rod 120. The removable cap 130 is then coupled to the distal end 122 of the rod 120, in a second configuration of the smoking article. 100, where it encompasses heat source 150, as illustrated in Figure 6.
    [00100] As described above, in the second configuration heat energy from the heat source 150 is spread across a thermally conductive layer of the tubular sheath 132. A thermally insulating layer of the tubular sheath 132 acts to prevent a surface of the smoking article. get too hot. In addition, the removable cover 130 can eliminate or limit the supply of oxygen to the heat source 150, which can aid in extinguishing the heat source 150. In addition, the removable cover 130 acts as a receptacle for the remaining ash associated with the heat source 150 and lessens the possibility that the ash poses a potential fire hazard. Removable cover 130 may also contain any unpleasant odors that may develop from heat source 150 as it extinguishes.
    [00101] The exemplary embodiments described above illustrate, but do not limit the invention. In light of the exemplary embodiments discussed above, other embodiments consistent with the above exemplary embodiments will now be apparent to one skilled in the art.
    权利要求:
    Claims (8)
    [0001]
    1. A smoking article (10), characterized in that it comprises: a rod (20) having a first end (21) and a second end (22); a flammable heat source (50) located at or near the second end (22) of the rod (20); and a removable cap (30), the removable cap being removably attachable to both the first end (21) and the second end (22) of the rod (20), wherein, in a first configuration of the smoking article (10), removable cap (30) is coupled to the first end (21) of the rod (20) such that air can be drawn from the rod (20) through the removable cap (30), and in a second configuration of the smoking article ( 10) the removable cap (30) is coupled to the second end (22) of the rod (20) such that the second end (22) is at least substantially covered by the removable cap (30) so that in the second configuration the removable cover (30) facilitates disposal of the smoking article (10) after use, and wherein the removable cover (30) comprises a thermally insulating material to thermally insulate the flammable heat source (50) when the removable cover (30) ) is coupled to the second end (22) of the rod (20).
    [0002]
    2. Smoking article (10) according to claim 1, characterized in that the removable cover (30) comprises a tubular sheath (32), the tubular sheath (32) being dimensioned to receive both the first end ( 21) and the second end (22) of the rod (20) to allow the removable cap (30) to be coupled to either the first end (21) or the second end (22) of the rod (20).
    [0003]
    A smoking article (10) according to claim 1 or 2, characterized in that the rod (20) comprises an aerosol forming substrate (55) located between its first end (21) and the second end. end (22).
    [0004]
    4. Smoking article (10) according to claim 1, 2 or 3, characterized in that the rod (20) comprises a material containing tobacco.
    [0005]
    5. Smoking article (10) according to any one of the preceding claims, characterized in that the removable cover (30) comprises one or more materials selected from the group consisting of non-combustible materials, flame retardant materials , thermally conductive materials and a thermal insulation material.
    [0006]
    6. Smoking article (10) according to any one of claims 2 to 5, characterized in that the tubular sheath (32) is formed from or coated with one or more materials selected from the group consisting of in aluminum foil, graphite, phase change materials, and foams.
    [0007]
    7. Smoking article (10) according to any one of the preceding claims, characterized in that the removable cover (30) comprises a filter (31) positioned in such a way that when the removable cover (30) is coupled at the first end (21) of the rod (20) in the first configuration, air can be drawn from the rod (20) through the filter (31).
    [0008]
    A method of facilitating disposal of an article of smoke (10) as defined in claim 1, comprising a rod (20) having a first end (21) and a second end (22), a localized combustible heat source. at or near the second end (22) of the rod (20), and an aerosol forming substrate (55), after use, the method characterized in that it comprises providing a removable cap (30) that is removable mates to a first end (21) of the stem (20) such that air can be drawn from the stem (20) through the cap and is removably attachable to a second end (22) of the stem (20) of such that the heat source is at least substantially covered by the removable cover (30), wherein the removable cover (30) comprises a thermal insulating material to thermally insulate the combustible heat source when the removable cover (30) is coupled to the second end (22) of the rod (20).
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    同族专利:
    公开号 | 公开日
    WO2013104616A1|2013-07-18|
    MX2014008411A|2014-08-21|
    HK1198876A1|2015-06-19|
    BR112014016826A8|2017-07-04|
    CN104039179A|2014-09-10|
    EP2802225A1|2014-11-19|
    PH12014501357B1|2014-09-22|
    BR112014016826A2|2017-06-13|
    IL233221A|2020-03-31|
    JP6363955B2|2018-07-25|
    MX352370B|2017-11-22|
    US20150027458A1|2015-01-29|
    SG11201403941VA|2014-09-26|
    KR102085085B1|2020-03-05|
    ZA201404431B|2016-07-27|
    RU2014132883A|2016-02-27|
    EP2802225B1|2020-07-01|
    AR089687A1|2014-09-10|
    AU2013209060A1|2014-08-21|
    JP2015509706A|2015-04-02|
    IL233221D0|2014-08-31|
    CN104039179B|2018-01-26|
    CA2860849C|2020-06-30|
    PH12014501357A1|2014-09-22|
    US9801412B2|2017-10-31|
    UA114499C2|2017-06-26|
    CA2860849A1|2013-07-18|
    MY171354A|2019-10-10|
    AU2013209060B2|2016-11-24|
    RU2604480C2|2016-12-10|
    NZ626712A|2016-05-27|
    KR20140116407A|2014-10-02|
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    法律状态:
    2018-03-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-07-21| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-01-19| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-06-01| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-06-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-24| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/01/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12150518.4|2012-01-09|
    EP12150518|2012-01-09|
    PCT/EP2013/050210|WO2013104616A1|2012-01-09|2013-01-08|Smoking article with dual function cap|
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