CN1113620C - Cigerette and heater for use in electrical smoking system - Google Patents
Cigerette and heater for use in electrical smoking system Download PDFInfo
- Publication number
- CN1113620C CN1113620C CN96194107A CN96194107A CN1113620C CN 1113620 C CN1113620 C CN 1113620C CN 96194107 A CN96194107 A CN 96194107A CN 96194107 A CN96194107 A CN 96194107A CN 1113620 C CN1113620 C CN 1113620C
- Authority
- CN
- China
- Prior art keywords
- cigarette
- tobacco
- heater
- smoking system
- filter tip
- 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 - Lifetime
Links
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- 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
- A24C5/01—Making cigarettes for simulated smoking devices
-
- 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
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- 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
- A24D3/17—Filters specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Resistance Heating (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
A cigarette (23) comprises a tobacco rod having filled and unfilled portions arranged so that electrical heater elements (31) may overlap both portions. The rod includes a tubular tobacco web. The web is constructed by converting tobacco feedstock into a continuous sheet of tobacco web and converting the continuous sheet of tobacco web into one or ore bobbins of tobacco web suitable for automated manufacture of cigarettes. A heater (25) comprises a supporting hub and electrically resistive heater blades (37) defining a receptacle (27) for an inserted cigarette (23). Each blade comprises first and second heater blade legs each having a first end and a second end, and a connecting section connecting the second end of the first leg and the first end of the second leg. The blades (37) are heated by a resistive heating circuit and heat the inserted cigarette (23). The legs are separated by a gap to permit entrainment of flavour substances upon drawing.
Description
Technical field
The present invention relates generally to electrical smoking system, relate to the cigarette that is suitable for the electric igniter cooperation of electrical smoking system or rather, and relate to a kind of heater that is used for electrical smoking system.
Background technology
Traditional cigarette sends fragrance and fragrance as the result of burning to the smoker, and some combustibles mainly are tobaccos therebetween, during a bite cigarette often to surpass 800 ℃ temperature combustion.Some tobaccos that heat is the suction that leans against the interface end by adjacency inhale.During heating, the inefficient oxidation of combustible discharges all gases combustion product and distillation from tobacco.Along with these gas products are sucked through cigarette, their coolings and cohesion provide the local flavor relevant with smoking and the smog of fragrance with formation.
Traditional cigarette has the various noticeable shortcomings relevant with it.One of these shortcomings are to produce sidestream smoke during smouldering between the suction, and this may dislike the non-smoker.In case light, they must or be dropped by completing combustion.It is possible lighting a traditional cigarette once more, but since subjective reason (fragrance, local flavor, smell) for normally proposal that does not have attraction of an insightful smoker.
A kind of substitute of more traditional cigarette is comprised those wherein combustible persons that do not discharge the tobacco smoke itself.This smoking article may comprise a kind of flammable, the heating element heater of carbonaceous (thermal source), this heating element heater be positioned at or near this smoking article and the berth of the element that tobacco is full of in abutting connection with aforesaid heating element heater.This heating element heater is lighted with match or lighter, and as smoker during to this cigarette smoking, is passed to the bed of the element that this tobacco is full of by the heat that this heating element heater produced, thereby makes this bed discharge tobacco smoke.Though such smoking apparatus produce seldom or do not produce sidestream smoke, in case its thermal source is lighted, in fact it is not easy to be extinguished so that use later on.
In two kinds of devices of above-described more traditional and carbon heating, between its operating period, burn.React to each other along with the decomposition of institute's combustible substance with ambient atmosphere, this process produces many accessory substances naturally.
Sequence number 07/943 common co-pending and commonly assigned, that the u.s. patent application serial number 08/380,718 (PM1697 continuation) that propose September 30 nineteen ninety-five and on September 11st, 1992 propose, 504 (PM1550) are together with U.S. Patent No. 5,093,894,5,225,498,5,060,671 and 5,095,921 disclose various heating element heaters and fragrance generation article, and these article reduce sidestream smoke significantly and allow the smoker to end selectively simultaneously and restart smoking.Yet all cigarette article that disclosed in these patents are not really durable and may since long heavy disposal shrivel, tear or damage.In some cases, the cigarette of these prior arts may damage by pressure when they are weakened and may tear or damage when they be taken out from igniter.
Aforesaid u.s. patent application serial number 08/380,718 (PM 1697 continue) and United States Patent (USP) 5,388,594 are described the electrical smoking system of cigarette of the novelty of a kind of electronic igniter that comprises a kind of novelty and a kind of and this igniter cooperation.The most preferred embodiment of this igniter comprises the heater that crawls of one group of metal, and this group heater is with a kind of deployment arrangements, and a tobacco rods part of this cigarette is admitted in this configuration slidably.
In sequence number 08/380, in 718 (PM 1697 continues) and also at EP-A-0,615, the most preferred embodiment of this cigarette that discloses in 411 comprises the tubular carrier that a tobacco is full of, one deck is wrapped in the cigarette paper of this tubular carrier, and one comes the through-flow filtering bolt of interface end of this carrier and the filtering bolt of a freedom at this carrier (far) end.This cigarette and this igniter are configured to, when this cigarette inserts this igniter and along with each heater is activated in every mouthful of cigarette, at the position around this cigarette, local charing takes place in the place (hereinafter referred to as " heater is touching and distinguishing ") that leans against on this cigarette at each heater.In case all heaters all are activated, these charing position each intervals are closely and around a core of this carrier portion of this cigarette.
Relevant with the gross energy that is sent with the maximum temperature at all heaters place, all charings position is than only the cigarette paper variable color is more obvious.In most occasions, this charing will cigarette paper and below carrier material in cause a small amount of damage at least, these damages tend to mechanically weaken this cigarette.When this cigarette must take out from this igniter, all charings position must slip over all heaters at least in part.Under condition of severe, for example moist or when being played with or reversing, this cigarette may be easy to damage or stay one from this igniter when it takes out when this cigarette.One that stays in this igniter fixture may be disturbed the correct work of this igniter and/or send strange taste to sucking of next cigarette.If this cigarette breaks in two when taking out, then the smoker may be not only will be in the face of the defeating of the cigarette products that lost efficacy, and will be in the face of before he or she can enjoy another cigarette, from the igniter of an obstruction, removing the prospect of fragment.
U.S.'s sequence number 08/380,718, EP-A-0,615,411 and patent No.5, the most preferred embodiment of this cigarette of 388,594 be basically one at the filtering bolt at the interface end place of this cigarette and the hollow pipe between the bolt at far-end.This structure it is believed that by enough spaces are set, smog can with minimum impact and near any lip-deep smog cohesion enter this space, and improve the amount of being fuming to the smoker.
Proposed some kinds of proposals, they reduce undesired sidestream smoke significantly, and the time of wanting of sucking that allows the smoker to interrupt these article simultaneously restarts to suck then.For example, commonly assigned U.S. Patent number 5,093,894; 5,225,498; 5,060,671 and 5,095,921 have disclosed various heating element heaters and fragrance generation systems.EP-A-0,615,411 and U.S. Patent No. 5,388,594 disclose a kind of electrical smoking system, there are some heaters by control and logic circuit activation when detecting suction in this system.Preferably a kind of relatively thin serpentine configuration of all heaters is so that to the enough heats of cigarette transmission, and is light and handy.
Though these devices and heater have overcome viewed problem and realized pointed purpose, many embodiment stand because insertion and take out this cylindrical tobacco medium and to the adjustment of the cigarette that inserted or play with machinery weakening and the possible inefficacy that the stress that brings out causes.
In addition, if the shape of a heater assembly is changed, for example owing to, undesired electric short circuit takes place then to due to the adjustment of the cigarette that inserted or playing with.
And all electrical smoking systems adopt some resistance heaters, and these heaters have being electrically connected of necessary relative complex, and these are electrically connected and may be disturbed by the insertion of this cigarette and taking-up.
When we at EP-A-0, comprise when filling pipe tobacco with the hollow-core construction of this cigarette in 615,411, find when with fill pipe tobacco when filling up fully this cigarette tend in an electric igniter, in several leading mouth cigarette, suitably work.After this its amount of being fuming will be tended to reduce.When more traditional cigarette at an electric igniter for example at EP-A-0, when being sucked in this electric igniter that is disclosed in 615,411, tend to take place same phenomenon.
When keeping when not filling up, EP-A-0, the hollow cigarette structure of this most preferred embodiment of 615,411 for since extreme or rough disposal cause shrivel also some fragility.
Summary of the invention
The present invention, its different aspect, be to define by the independently claims that tail.
A kind of cigarette of implementing aspect of the present invention has comprise the advantage of filling pipe tobacco (being the pipe tobacco filler) and can as one man work when sucking as the part of an electrical smoking system.
A kind of cigarette of implementing aspect of the present invention has the filling of comprising pipe tobacco, and is suitable for an electric igniter cooperation and realizes the advantage of the gratifying level of local flavor and the amount of being fuming.
A kind of cigarette of implementing aspect of the present invention has the filling of comprising pipe tobacco, and provides from the conforming advantage that has flatly improved to the amount of being fuming flatly.
Implement the cigarette of aspect of the present invention and can make and be packaged into attracting packing material at an easy rate.
Implement the cigarette of aspect of the present invention and on can entity be firm and cohesion and/or the filtration of smog in this cigarette and/or this igniter reduced to minimum.They can also be not fragile during this cigarette takes out from its igniter.
Implement the cigarette of aspect of the present invention and be suitable for consuming with an a kind of igniter of electrical smoking system, and can be not too fragile for shriveling or damaging during being subjected to the rough disposal of consumer.
Implement the cigarette of aspect of the present invention and be suitable for to be not easy to shrivel or damage during a igniter with a kind of electrical smoking system is consumed in the manufacturing of this cigarette or packing.
Implement the cigarette of aspect of the present invention and with an electric igniter job even on speed of production, the manufacture method of high efficiency is carried out at cost.
The heater of implementing aspect of the present invention can produce smog and not keep burning in this cigarette smoking system from the tobacco medium, can reduce the generation of undesirable sidestream smoke, can allow the smoker to interrupt and restart using, and can improve the amount of being fuming.
Implementing a kind of heater structure of the present invention can provide (smoking) wanted mouthful number and can revise straight from the shoulder, does not sacrifice the subjective attribute of tobacco so that the mouth number that provided and/or duration are provided.
Implement insertion and taking-up that a kind of heating element heater of the present invention can mechanically be suitable for a cigarette.
A kind of resistance heater of implementing aspect of the present invention can have to the connection of the simplification of corresponding power supply.
A kind of heating element heater of implementing aspect of the present invention can be mechanically stable during heat cycles.
Embodiments of the invention can reduce to minimum to the variation at the interface between this heating element heater and this cigarette, to avoid the change in the heat transmission.
Implementing heater of the present invention for one can make more economically.
A most preferred embodiment provides a kind of cigarette smoking system that sends the fragrance tobacco in response to the smoker.This system comprises the igniter of a cigarette and an electric operation, this igniter comprises one group of hot plate, in these heaters each is suitable for, perhaps individually or simultaneously, it/discharge the tobacco smoke of predetermined quantity when their activate from this cigarette with thermal methods.This cigarette comprises a tubular tobacco net, wherein the first of this tubular tobacco net is by a tobacco column, preferably to fill the form of pipe tobacco, institute fills up, and the second portion of should tubular tobacco netting is retained as and does not fill up or hollow so that define a space in this tobacco column.
Or rather, aforementioned cigarette comprises that preferably one is positioned at the tobacco rods that the tobacco plug of this tubular tobacco net is formed by a tubular tobacco net and one.This tobacco rods is suitable for being admitted slidably by a hot plate fixture, cause all heating elements between the free end of this tobacco rods and opposite end alongside this tobacco rods arrange.Preferably this tobacco plug (or post) extends to a position of leaving this opposite end of this tobacco rods from this free end of this tobacco rods, so that define a space (or hollow parts) in abutting connection with this opposite end.
The relative size of this heater fixture of this cigarette and this igniter is definite like this, promptly when this cigarette inserts this igniter, each heater will be alongside this tobacco rods be arranged in a precalculated position, and the part part of overlapping at least this tobacco plug also of the overlapping at least aforementioned interspace of the vertical contact length between this heater and this cigarette (hereinafter " heater is touching and distinguishing ") preferably along this tobacco rods.So, when this cigarette obtains consistent and the gratifying amount of being fuming during by electric sucking, and reduce tobacco smoke in all heating elements or near the cohesion it.
As an alternative, the relative size of this heater fixture of this cigarette and this igniter is definite like this, promptly when this cigarette inserts this igniter, each heater will be alongside this tobacco rods be arranged to if not all, at least some heater touching the district only this of overlapping this tobacco rods fill up part (on this tobacco plug).In such configuration, this space still can be used for encouraging smog and form and assist this smog of cooling.
Preferably, one deck cigarette paper is wrapped in around this tubular tobacco net like this, so that the look and feel of more traditional cigarette is provided during the smoker disposes.
This tobacco net preferably comprises the tobacco material that a nonwoven tobacco spacer screen and one deck are arranged along a side of this tobacco spacer screen at least.
This cigarette preferably also is included in the filter-tip at the aforementioned opposite end place of this tobacco rods, this cigarette holder comprises a circulation filtering bolt (being also referred to as " whistle logical " (whistle-through) bolt in prior art), interface filtering bolt and all cigarette mouthpiece papers that is connected to this tobacco rods that ties.
When an enforcement cigarette of the present invention is inserted into igniter of an electrical smoking system, this cigarette leans the stop of this heater fixture that is arranged in this igniter and locatees (perhaps with certain equivalent locate mode), so as all electric heating element heater of this igniter alongside this cigarette as one man be arranged in the position identical substantially to every cigarette.Along with the beginning of (suction) cigarette flatly, at least one in all heaters of this igniter responsively activated so that heat this cigarette in the aforementioned location along this tobacco rods.Along with the carrying out of a bite cigarette, this tobacco rods is heated and smog is driven out of this tobacco net and this filling pipe tobacco.Touching the occasion in this space in this tobacco rods of area overlapping at this heater, tobacco smoke almost is released into not filling up the space of being defined in the part and being sucked out this cigarette at this tobacco rods immediately.This tobacco net is contributed this part great majority of total smog of being sent by this cigarette, and its instantaneity it is believed that and advantageously influences the nature and extent of smoker to this cigarette smoking.Because the part of filling up at this tobacco rods has a more substantial tobacco, so discharge on the smog postponement is arranged slightly in the part of filling up of touching this bar of area overlapping from this heater.Filled up from this of this tobacco rods smog that part drives out of to this suck contribute one additional, the fragrance of domination and characteristic.
Another aspect of the present invention is to adjust the ability of the amount of being fuming of a cigarette of an electrical smoking system, in this system this tobacco rods fill up part with do not fill up proportional quantities that part touched area overlapping by this heater realize from a kind of cigarette of plate to another kind of plate or in a kind of variety range of plate to the adjustment of wanting of the amount of being fuming.
Another aspect of the present invention is a kind of raising from the grade and the conforming method of the amount of being fuming that a hot plate device comes the cigarette of work of drawing, and wherein this cigarette has a free end and an opposite end.This method may further comprise the steps: a heater touching area overlapping part that this free-ended tobacco of adjacency of this cigarette is filled up and this cigarette in abutting connection with this opposite end do not fill up part on the two, simultaneously along this heater touching distinguish resistance heated and through its this opposite end to this cigarette smoking.
Another aspect of the present invention is to provide electric igniter of a kind of usefulness to come the cigarette of filling pipe tobacco that contains of work, this cigarette comprises that one has and freely flows filter tip and fill the tobacco rods of tobacco rod part in abutting connection with this nothing that freely flows filter tip, so that promote consistent smog to take place.
Another aspect of the present invention is the tubular tobacco net of a reinforcing, and this tobacco guipure has to be dosed in flax of its spacer screen or lignocellulose fiber so that added strength is provided.As an alternative, the cellulose fibre that comes from tobacco stalk raw material can be used as a kind of strengthening agent and is included in the prescription of this spacer screen.
The fastness of this cigarette can tolerate disposal by comprising that in the scope of its tubular tobacco net filling pipe tobacco improves preferably so that provide a kind of, comprising the cigarette of being disposed by cigarette machine and being disposed by the consumer.
Realize that a kind of heater of the present invention preferably includes a supporting centre slice and the fixed resistance heater sheet of admitting the socket of a cigarette that is inserted of a class boundary.Each sheet comprises a primary heater sheet leg that has first end and the second end and extend from this supporting centre slice at this first end, a secondary heater sheet leg that has first end and the second end, and the linkage section of the first end of the second end of this first leg of connection and this second leg.The second end of this second leg extends and upward isolation electric with it to this supporting centre slice.A resistive heater circuit is formed to heat this resistance heater sheet, and the latter itself heats the cigarette that is inserted again.When aspirating, allow air enter thereby this first and second pin is separated by a gap and assist to send fragrance matter from the cigarette that is heated by the smoker.
Description of drawings
With example some embodiments of the present invention are described now with reference to accompanying drawing, in these accompanying drawings:
Fig. 1 and Fig. 2 are the perspective views according to the electrical smoking system of a most preferred embodiment of the present invention;
Fig. 3 is the cross section and perspective of a cigarette in this heater fixture that inserts this cigarette smoking system shown in Fig. 1;
Fig. 4 A is a sectional view according to the cigarette of most preferred embodiment formation according to the present invention.
The detailed perspective view that Fig. 4 B is this cigarette shown in Fig. 4 A under the situation that some member of this cigarette is partly launched;
Fig. 5 A and Fig. 5 B are the flow charts of all steps in the optimum process of the tobacco net strip coil of this cigarette shown in shop drawings 4A and Fig. 4 B, wherein Fig. 5 A represents tobacco material is transformed into all steps of the sheet material of tobacco net, and Fig. 5 B represents this tobacco net sheet material is transformed into all steps of tobacco net strip coil;
Fig. 6 A is the sectional view of a cigarette that constitutes according to hollow basically embodiment according to the present invention;
When the cigarette that Fig. 6 B constitutes along with this hollow basically embodiment according to the present invention by Fig. 6 A produced, the amount of being fuming was to the avatars of time during every mouthful of cigarette;
Fig. 6 C is a kind of schematic diagram that is used for determining the smoking measurement mechanism of data expressed in Fig. 6 B, Fig. 7 B and Fig. 8;
Fig. 7 A is a sectional view according to the cigarette of one of the present invention embodiment formation of filling up fully;
Fig. 7 B is the cigarette that constitutes along with an embodiment that this fills up fully according to the present invention by Fig. 7 A when producing, and the amount of being fuming is to the avatars of time during every mouthful of cigarette;
Fig. 8 is when being sent by each of reference Fig. 4 A, Fig. 6 A and described those cigarette of Fig. 7 A, the figure contrast of smog volume when every mouthful of successively suction;
Fig. 9 be particle total amount (TPM) send and heater fills up the avatars of the relation between the lap on the part at this of cigarette that the part that most preferred embodiment according to the present invention (Fig. 4 A) constitutes is filled up;
Figure 10 is a sectional view according to the cigarette of second embodiment of the present invention formation;
Figure 11 is a sectional view according to the cigarette of third embodiment of the present invention formation;
Figure 12 is a sectional view of implementing a heater fixture of another aspect of the present invention;
Figure 13 is a side view of implementing a heater assembly of another aspect of the present invention;
Figure 14 is a sectional view of implementing a heater fixture that utilizes the electrical insulator coating of another aspect of the present invention;
Figure 15 is that the electrical insulator coating of utilizing of implementing one aspect of the present invention forms the sectional view of a heater fixture of a centre slice;
Figure 16 is a sectional view of implementing a heater fixture that has the shape heater chip leg that crawls of one aspect of the present invention;
Figure 17 A is the main cutaway view that has a kind of heater chip of the planar underside of facing the cigarette that inserts;
Figure 17 B is the main cutaway view that has a kind of heater chip of the wedge angle downside of facing the cigarette that inserts;
Figure 17 C is the main cutaway view that has a kind of heater chip of the curved underside of facing the cigarette that inserts;
Figure 18 is the vertical view that is in the symmetric arrays of the heater chip that rolls flat condition before;
Figure 19 is the vertical view that is in the asymmetric geometry of the heater chip that rolls flat condition before;
Figure 20 is a radial cross-section of implementing electrical smoking system of the present invention, represents a kind of alternative heater embodiment;
Figure 21 be the fragrance insert of this electrical smoking system of Figure 20 admit lumen pore, from the longitudinal section of the line A-A intercepting of Figure 20;
Figure 22 is the radial cross-section of the another kind of heater embodiment that substitutes of expression; And
Figure 23 be the fragrance insert of this electrical smoking system of Figure 22 admit lumen pore, from the longitudinal section of the line B-B intercepting of Figure 22.
The specific embodiment
See figures.1.and.2, a most preferred embodiment of the present invention provides a kind of cigarette smoking system 21, and this cigarette smoking system comprises filling pipe tobacco cigarette 23 and repeatedly used igniter 25 that a part is filled up.This cigarette 23 is suitable for inserting and takes out from a jack 27 of the leading section 29 of this igniter 25.In case this cigarette 23 is inserted into, this cigarette smoking system 21 is just being used with the roughly the same mode of more traditional cigarette, but do not light or this cigarette 23 of smouldering.Be dropped through this cigarette 23 flatly or after many mouthfuls of suction circulations.Preferably, every cigarette 23 is sucked to provide at every turn and is amounted to 8 mouthfuls or more suction (suction circulation); Yet adjust the total mouthful of number that can aspirate is a design handling problems.
This igniter 25 comprises a housing 31 that has fore shell portion 33 and back cover portion 35.One or more battery 35a are arranged within this back cover portion 35 removedly and to one group of stratie 37 supplying energy, this group stratie is arranged within the fore shell portion 33 in abutting connection with socket 27.A control circuit 41 in fore shell portion 33 is set up electrical link between all battery 35a and all heating element heaters 37.Preferably, this rear portion 35 is suitable for opening and closing at any time, for example with screw or buckling piece, so that the replacing of battery if want, then can be provided with an electrical outlets or some contacts, so that give all battery recharges with indoor electric current and so on.
Preferably, this fore shell portion 33 removably is connected in this back cover portion 35, for example cooperates with a kind of dovetail joint or a kind of socket joint.This housing 31 is preferably made by a kind of hard heat proof material.Preferable material comprises metal, or is more preferably polymeric material.Preferably, this housing 31 has the appearance and size of about 10.7cm * 3.8cm * 1.5cm, and it can cosily be held in smoker's the hand.
Referring now to Fig. 3, columniform basically heater fixture 39 of fore shell portion 33 supportings of igniter 25, this fixture is admitted this cigarette 23 slidably.This heater fixture 39 is accommodated heating element 37 and is suitable for the cigarette 23 to the fixing insertion of relations supporting of all heating element 37, cause all heating elements 37 alongside this cigarette be positioned along the identical substantially position of every cigarette.Each heating element 37 leans against position on (or thermo-contact in) cigarette 23 that inserts fully and is referred to herein as heater and is touching and distinguish.
In order to guarantee that all heating elements 37 are with respect to the location of every cigarette 23 unanimities from the cigarette to the cigarette, this heater fixture 39 is provided with a stop 182, during cigarette being put into this igniter 25 this cigarette is pushed against on this stop.Can locate this cigarette 23 with respect to this igniter 25 with additive method as an alternative.
The fore shell portion 33 of this igniter 25 also comprises an electric control circuit 41, and this circuit sends the energy of predetermined quantity to all heating elements 37 from power supply 35a.In this most preferred embodiment, this heater fixture 39 comprises the heating element heater 37 that separates on 8 circumference, and these heating element heaters and this socket 27 centers align and have a shape of crawling.The details of all heaters 37 is in commonly assigned and the co-pending U.S. of this paper sequence number 07/943, among 504 (PM1550) and in commonly assigned U.S. Patent No. 5, diagram and description among 388,594 (PM1697), these two parts of files are included in herein as a whole by reference.Additional heater fixture 37 is that a part that can be used as this igniter 25 is operated, this fixture comprises (the Attorney Docket No.PM17293CIP II) that those proposed in January 6 nineteen ninety-five, commonly assigned, co-pending u.s. patent application serial number _ _ _ _ in; At (the Attorney Docket No.PM1719) that on August 16th, 1994 proposed, commonly assigned, announcement person in the co-pending U.S. sequence number 08/291,690, all these files are included in herein as a whole by reference; And this specification than rear portion contrast Figure 13 to 23 person of providing.Preferably, all heaters 37 are individually switched on by this power supply 35a under the control of this circuit 41, so that heat this cigarette 23 best 8 times in the position spaced around the circumference of cigarette 23.8 mouthfuls of suctions from this cigarette 23 are implemented in this heating, as realizing usually when the sucking of a more traditional cigarette.For a bite of all mouthful of cigarette or many mouthfuls, lighting one is desirable with upper heater.
Another kind of best heater configuration proposes in (PM-1729B) of proposition on April 8th, 1994 co-pending, commonly assigned jointly u.s. patent application serial number 08/224,848, by reference it is included in this as a whole.
Back with reference to Fig. 2, preferably, this circuit 41 activates by the sensor 45 of a suction operation, and this sensor is to the variation or the mobile rate variations sensitivity of air of pressure, and these change appearance when the smoker begins 23 suctions of this cigarette.The sensor 45 of this suction operation preferably is arranged within the fore shell portion 33 of this igniter 25 and through a passage that extends by a separator at the base portion place of this heater fixture 39, if and want, a puff sensor pipe (not shown) is communicated with these heater fixture 39 interior spaces in abutting connection with this cigarette 23.A kind of sensor 45 that is suitable for the suction operation in this cigarette smoking system 21 is described in commonly assigned U.S. Patent No. 5,060,671 (PM 1337), and the open of this patent is included in herein by reference.This puff sensor 45 preferably comprises one 163 PCO1D3S type silicon sensor by the MicroSwitch department manufacturing of Illinois Freeport city Honeywell company.The sensing device that flows, as those utilization heated filament anemometries principle person, it is practical also successfully having demonstrated for activate suitable in all heating elements 37 one when detecting the air rheology.In case activated by this sensor 45, this control circuit 41 just is directed to one suitable in all heating elements 37 to electric current.
Indicator 51 is arranged on a position along this igniter 25 outer surfaces, preferably in fore shell portion 33, so that indication remaining mouth number in inhaling a cigarette 23.This indicator 51 preferably comprises 7 sections LCDs.In this most preferred embodiment,, a cigarette detecting device 53 shows numeral " 8 " when in this heater fixture 39, a cigarette being arranged when detecting.This detector 53 preferably comprises an optical sensor at the base portion of this heater fixture 39, and when a branch of light is by cigarette 23 reflections of an insertion for this light sensor probes.This cigarette detecting device 53 provides a signal to circuit 41 in view of the above, and this circuit transfers correspondingly to provide a signal to this indicator 51.Show that on this indicator 51 numeral " 8 " reflects, 8 mouthfuls of suctions can be provided on every cigarette 23, in promptly all heating elements 37 still neither one be activated and heated this cigarette 23.After this cigarette 23 was inhaled fully, this indicator for displaying digital " 0 ".When this cigarette 23 took out from this igniter 25, this cigarette detecting device 53 no longer detected the existence of a cigarette 23 and this indicator 51 is closed.This cigarette detecting device 53 is modulated like this, causes it not launch a branch of light all the time, otherwise this will produce unnecessary electric leakage on power supply 35a.A kind of best cigarette detecting device 53 that is suitable for share with this cigarette smoking system 21 is OPR 5005 type optical sensors of being made by west, Texas, USA 75006 Jia Luoerdun cities Crosby road No. 1215 OPTEX Technology company.
Except showing remaining pump contents, this detector can be configured to indicate this system whether be activated (" leading to " or " breaking ") as an alternative.
As one of some kinds of possible substitutes that adopt above-mentioned cigarette detecting device 53, a mechanical switch (not shown) can be set have been surveyed and not to have a cigarette 23 and a reset switch (not shown) can be set, when being inserted into this igniter 25 this circuit 14 is resetted, for example make this indicator 51 show numeral " 8 " etc. with new cigarette of box lunch.The sensor of the power supply that can share with cigarette smoking system 21 of the present invention, circuit, suction operation and indicator are in commonly assigned U.S. Patent No. 5,060,671 (PM 1337) and commonly assigned u.s. patent application serial number 07/943,504, (PM1550) describe in, this two be contained in this by reference.
Referring now to Fig. 4 A and Fig. 4 B, this cigarette 23 that this most preferred embodiment according to the present invention constitutes comprises a tobacco rods 60 and a filter-tip 62, and this tobacco rods and this filter-tip link together with cigarette mouthpiece paper 64.
The filling pipe tobacco cigarette 23 that this part is filled up preferably along its length have a substantial constant diameter and, this is as more traditional cigarette, this diameter is preferably approximately between 7.5mm and the 8.5mm, so that this cigarette smoking system 21 provides a kind of familiar " mouthfeel " for a smoker.In this most preferred embodiment, these cigarette 23 total lengths are 62mm, are convenient to the packing that conventional packing machine is used for this cigarette 23 whereby.Interface filter tip 104 is preferably 30mm with the pattern length that freely flows filter tip 102.This cigarette mouthpiece paper preferably approximately prolongs 6mm on this tobacco rods 60.The total length of this tobacco rods 62 is preferably 32mm.Substituting of those that enumerate at this most preferred embodiment as above also can be selected other ratio, length and diameter.
This tobacco rods 60 of this cigarette 23 preferably includes a tobacco net (sheet 66), and this tobacco net has been folded into pipe (cylinder) shape.
One deck overwrap 71 directly is wrapped in this tobacco net 66 and sticks together along a longitudinal joint, as common in the structure of more traditional cigarette.This layer overwrap 71 is fixed in one to this tobacco net 66 with package status and freely flows filter tip 74 and a tobacco plug 80.
Preferably, this layer cigarette overwrap 71 directly is wrapped on this tobacco net 66, so that give the look and feel of a more traditional cigarette.Have been found that when this overwrap 71 to be a kind of cigarette paper of type that preferably a kind of have about 20 to 50 CORESTA and (be defined as and pass 1cm under the pressure drop of 1.0kPa in 1min
2Material, a piece of paper for example with cm
3Air capacity for unit), is more preferably about 30 to 40 CORESTA, every square metre of (g/m of about 23 to 35 grams
2) and be more preferably 23 to 30g/m
2Basis weight, and about 23 to 35% weight and when being more preferably flax paper of filler (preferably calcium carbonate) of 28 to 33% weight, realize the smoking of better flavor.This overwrap 71 preferably contains seldom or does not contain citric acid or other combustion modifiers, and preferably the lemon acid number is the weight of 0 to about 2.6% overwrap 71, is more preferably less than 1%.
This tobacco net 66 itself preferably includes the tobacco flavor material 70 that a spacer screen 68 and one deck are arranged along the inner surface of this spacer screen 68.In the mouth end 72 of this tobacco rods 60, this tobacco net 66 is wrapped in tubular freely stream on the filtering bolt 74 together with this overwrap 71.This freely flows filtering bolt 74 provides structure to define at these mouth end 72 places of this tobacco rods 60 and supports and allow smog the pressure drop with minimum is sucked out from the inside of tobacco rods 60.This freely flows filtering bolt 74 and also plays a flow blockage thing at these mouth end 72 places of this tobacco rods 60, and this it is believed that the formation that helps to promote smog during this cigarette 23 is aspirated.This freely flow filtering bolt preferably to the youthful and the elderly 7mm so that machine dispose, and annular preferably, but the efficient filtration bolt of other shapes and type also is suitable for, comprising cylindrical filtering bolt.
At the free end 78 of this tobacco rods 60, this tobacco net 66 is wrapped on the tobacco plug 80 together with this overwrap 71.Preferably, this tobacco plug 80 constitutes respectively with this tobacco net 66 and comprises a relative short filling pipe tobacco post, and this fills the pipe tobacco post by one deck bolt wrapping paper 84 parcels and fixing.
Preferably this tobacco plug 80 constitutes on the tobacco rods maker of a routine, fill pipe tobacco (preferably fusion) and be configured as the continuous bar of a tobacco by air-blowing and wrap up with the band of a continuous bolt wrapping paper 84 on conveyer belt in this machine, this bolt wrapping paper is bonding and be heated seal along its longitudinal joint then.Yet according to this most preferred embodiment of the present invention, this bolt wrapping paper 84 preferably is made of the cellulose net that has seldom or do not have filler, setting agent or combustion adjuvant (respectively being the value less than 0.5% percetage by weight) and preferably seldom or not formalizes.Preferably, this tobacco plug wrapping paper 84 has less than 15g/m
2Very low basis weight and be more preferably about 13g/m
2This tobacco plug wrapping paper 84 preferably has the highly-breathable of about 20000 to 35000 CORESTA, and is more preferably 25000 to 35000 CORESTA, and preferably is made of cork fibrous slurry, abaca fiber type element or other long fibered pulps.Such paper can be from Germany, this Bach of lid grace, and D-76584, postcode mailbox 1155, Schoeller and Hoescht papermaking company buy; The paper that another kind is suitable as bolt wrapping paper 84 is TW 2000 paper that come from French DeMauduit of Euimperle, has the carboxymethyl cellulose that adds with 2.5 weight percent numerical value.
This tobacco rods maker is operated like this, so that the tobacco rods density of about 0.17 to 0.30 gram every cubic centimetre (g/cc) is provided, but is more preferably at least 0.20 to 0.30g/cc scope and preferably between about 0.24 to 0.28g/cc.Higher density is desirable for avoiding the loose end at free end 78 places of this tobacco rods 60.Yet, be noted that lower rod density will make this tobacco column 82 smoke and produce the smog and the fragrance of larger proportion.Therefore, must and avoid in the amount of being fuming (it tends to rod density low in tobacco column 82) keeping balance between the loose end (it tends to the higher range of rod density).
This tobacco column 84 preferably comprises the filling pipe tobacco of the typical fusion tobacco of the sector, comprising by flue-cured tobacco (bright tobacco), burley (burley) and east tobacco, together with optionally recovering the tobacco of moisture and comprising the admixture that other fusion compositions of conventional tobacco spice are formed.Yet, in this most preferred embodiment, comprise flue-cured tobacco, burley and east tobacco admixture in about 45: 30: 25 ratio at the filling pipe tobacco of this tobacco column 84 of American market, do not comprise and recover spices after moisture tobacco or any chopping.Optionally, a kind of tobacco component of expansion can be included in the admixture adjusting rod density, and can add spices.
The continuous tobacco rods of Xing Chenging is by cutting at these tobacco plug 80 predetermined bolt length as mentioned above.This length preferably at least 7mm so that machine dispose.Yet this length may change to 25mm or longer from about 7mm, decides on the preference in the cigarette design, and this specifically contrasts hereinafter in the description of Fig. 4 A and Fig. 4 b and will come into focus.
In general, the length 86 of tobacco plug 80 is preferably set like this at the total length 88 of tobacco rods 60, promptly defines a space 90 along this tobacco rods 60 freely flowing between filtering bolt 74 and the tobacco plug 80.These space 90 correspondences of this tobacco rods 60 and are not filled up part and be communicated with these cigarette holder 62 direct fluids through the filtering bolt 74 that freely flows of this tobacco rods 60.
With reference to Fig. 4 A, the length 86 of this tobacco plug 80 and it are also selected at the feature of all heating elements 37 along the relative position of this tobacco rods 60 particularly.When the stop 182 that is close to this heater fixture 39 when a cigarette was correctly located, the part 92 of each heating element 37 will be along this tobacco rods 60 of zone contact of this tobacco rods 60.This contact area is called a heater and is touching and distinguish 94.This heater touching and distinguishing 94 (as among Fig. 4 A with shown in a pair of arrow) be not the part of this cigarette structure itself, but during the sucking of this cigarette 23 on this tobacco rods 60 this heating element 37 will be expected to reach the representative in that zone of work heating-up temperature.Because all heating element heaters 37 are from 182 1 fixing distances 96 of stop of this heater fixture 39, so this heater is touching and distinguishing 94 and always be positioned at along free end 78 same preset distances 96 places of this tobacco rods 60 from this tobacco rods 60 for every cigarette 23 that inserts this igniter 25 fully.
Preferably, the length of this tobacco plug 80, this heater touching distinguish 94 length and this heater touching distinguish 94 and this stop 182 between distance select like this so that this heater is touching and is distinguishing 94 lengthenings and surpass this tobacco plug 80 and overlapping with the part in this space 90 with distance 98.This heater is touching the distance 98 of distinguishing 94 overlapping these spaces 90 (this tobacco rods 60 do not fill up part) and is being also referred to as " heater-space lap " 98.This heater is touching the distance of distinguishing 94 overlapping these tobacco plug 80 and is being called " heater-filling pipe tobacco lap " 99.
This cigarette holder 62 comprises that preferably one is positioned at and freely flows filter tip 102 and the interface filtering bolt 104 away from these tobacco rods 60 1 ends at this cigarette holder 62 in abutting connection with this tobacco rods 60.Preferably should freely flow filter tip 102 for tubular and transmit air with very little pressure drop.Yet, also can adopt the lower filter tip of other efficient of normal structure as an alternative.This internal diameter that freely flows filter tip 96 preferably for or between 2 to 6mm and preferably greater than the internal diameter that freely flows filter tip 74 of this tobacco rods 60.
This interface filtering bolt 104 seals the free end of this filter tip 62 for the purpose of outward appearance, and, if desired, carry out some and filter, but preferably this interface filtering bolt 104 comprises an inefficient filter tip with preferably about 15 to 25 percentage efficiency.
This freely flows filter tip 102 and this interface filtering bolt 104 preferably connects into a compound bolt 110 with bolt wrapping paper 112.This bolt wrapping paper 112 is a kind of low weight bolt wrapping paper of porous preferably, to those in the prior art of cigarette industry, conventionally can buy like that.This compound bolt 110 is connected in this tobacco rods 60 by this cigarette mouthpiece paper 64, and this cigarette mouthpiece paper 64 has the standard techniques specification and adopts everywhere in cigarette industry routinely.This cigarette mouthpiece paper 64 can be cork look, white or any other color by the decoration preference that may propose.
Preferably, a cigarette 23 that constitutes according to this most preferred embodiment has the total length of about 62mm, and wherein 30mm constitutes this compound bolt 110 of this cigarette holder 62.Therefore, this tobacco rods 60 is long for 32mm.Preferably, to be at least 7mm long and should freely flow space 91 between filter tip 74 and this tobacco plug 80 and preferably be at least 7mm and grow for the filter tip 74 that freely flows of this tobacco rods 60.In this embodiment, this heater is touching to be distinguished 94 and is approximately the long and location like this of 12mm, and promptly it provides heater-space lap 98 of a 3mm, and the heater of reserving 9mm is touching distinguishes 94 overlapping these tobacco plug 80.
The length that is noted that the length in this space 91 and this tobacco plug 80 can be adjusted so that make and the more important thing is so that adjust the smoking characteristic of this cigarette 23, comprising its local flavor, aspirate and the adjustment of the amount of being fuming.The length in this space 91 and heater-filling pipe tobacco lap (and heater-space lap) also can change so that adjust the instantaneity of response, promote the uniformity (on the basis of a bite mouthful (smoking) and between cigarette) of the amount of being fuming, and be controlled at heater place or near the smokescope heater.
In this most preferred embodiment, this space 91 (nothing of this tobacco rods 60 is filled the pipe tobacco part) extended about 7mm and distinguished 94 and freely flow enough gaps are arranged between the filter tip 74 to guarantee touching at heater.So, provide allowance, promptly touched and distinguishing 94 and can not heat and freely flow filter tip 74 at smoking heating device.Other length are suitable for, and for example, if manufacturing tolerance allows, then space 91 can be configured to be as short as about 4mm or shorter, and is perhaps extreme at another, are lengthened to the 7mm of surpassing far away consequently sets up a lengthening along this tobacco rods 60 nothing filling pipe tobacco part.This desirable scope of not having the length of filling pipe tobacco part (space 91) is from about 4mm to 18mm, and is more preferably 5 to 12mm.
On these spacer screen 68 entities all heating element heaters 37 and tobacco flavor material are separated, this spices 70 of heat transferred that is produced by all heating elements 37, and during disposing, inserting this igniter 25 and 32 smoking after, to take out this cigarette the physical condensation power of this tobacco rods of maintenance.
In the following description, at the various compositions of forming this tobacco net 66 some percent value and/or relative weight are proposed.Unless in addition expression is clearly perhaps otherwise to this professional those of ordinary skill, cited percetage by weight is based on dry weight, and in other words, cited percent value and/or relative weight are adjusted at (not comprising) moisture.
The process of making this tobacco net 66 preferably is provided with the interpolation carbon fiber, as in following paragraph will as described in.When this best manufacture process finished, this spacer screen 68 itself had about 35 to 45g/m
2Desirable total basis weight, be more preferably about 40g/m
2At 40g/m
2The time, this spacer screen 68 preferably comprises about 28g/m
2Baccy fiber and about 12g/m
2Such as the cellulose fibre that comes from wood pulp or flax.This cellulose fibre plays the cellulosic strengthening agent in the prescription of this spacer screen 68.Owing to the reason of subjectivity (avoiding having in the local flavor of this cigarette the feature of paper), the quantity of cellulose fibre preferably reduces to minimum in this spacer screen.In general, in this spacer screen 68 baccy fiber to cellulose fibre based on the ratio of dry weight should from about 2: 1 to 4; In 1 the scope.Best cellulosic material is the brown paper softwood cellulose of primary colors, but most of wood pulps and flax pulp are spendable.
A kind of alternative strengthening agent that is used for this spacer screen 68 is the cellulose fibre that comes from the offal of institute's output.
Though this not as preferred, can press about 1g/m along a side of this spacer screen 68
2Value coating alginates.If the coating alginates then preferably are coated on the relative side, the side with accepting this tobacco flavor material 70 of spacer screen 68.
These tobacco material 70 about 3 to 4 times of should be more preferably this spacer screen 68 with the dry weight value more than at least 2 times are coated this spacer screen 68.In this most preferred embodiment, this tobacco material has about 130g/m
2Basis weight, causing preferably, whole gross weights of this tobacco net 66 are approximately 170g/m
2Based on dry weight, this tobacco material 70 comprises a part of offal and extracts solids with about 3.5 to 1 (3.5: 1) to 5 to 1 (5: 1) weight range, but this ratio can change in about 3: 1 to 9: 1 scope.In this most preferred embodiment, this ratio is about 4.1.
Glycerine is as a kind of wetting agent and as the content of a kind of smog omen agent with about 10-14%, preferably approximately 12% of the dry weight of this tobacco material make an addition to this tobacco material 70, but than add content can from about 5% to up to 20% or this higher tobacco expect that 70 dry weight changes arbitrarily.When glycerine reduces to only approximately during the 5-7% dry weight of this prescription, this tobacco net 66 may be harder and more be difficult for shriveling when tubular when being rolled into.
Pectin is also to make an addition to this tobacco material 70 from about dry weight percent value of 0.5 to 2%, preferably about 1.4%.Pectin adds as coverture.Do not have it, this tobacco material 70 may tend to too much floor drain and advance (running through) this spacer screen 68 in the coating operation, form many superficial makings in the coated side of this tobacco net 66.Too much pectin hinders and runs through, and weakens bonding between this tobacco material 70 and this spacer screen 68.At about 1% o'clock, this pectin promoted enough bonding with interlayer of running through, and causes this spacer screen 68 can tolerate the severe condition of automated manufacturing cigarette.
Preferably, this tobacco material 70 on this spacer screen 68 comprises the extraction solid tobacco thing of about 16-20% dry weight, the offal particle of 66-71% dry weight, the glycerine of 8-14% and about 1.4% pectin.For American market, be included in the admixture that this offal in this tobacco material 70 preferably comprises flue-cured tobacco, burley and east tobacco, wherein almost half admixture is a flue-cured tobacco, almost 1/3 is burley and all the other are east tobaccos.The relative populations of this prescription and all fusion compositions can be adjusted expediently to adapt to the Consumer Preferences in American market or other market.
With reference to Fig. 5 A and Fig. 5 B, the best approach of making the raw material of tobacco net 66 in the mode of the automated manufacturing that is suitable for cigarette comprises and is used for a tobacco material, stripped leaf preferably, be transformed into the 1st series of steps 120 (being shown in Fig. 5 A) of the continuous sheet 66s of this tobacco net, with the 2nd series of steps 122 (being shown in Fig. 5 B) that the continuous sheet 66s of this tobacco net is transformed into the strip coil 66b of one or more tobacco nets, this strip coil is in the state in the automated manufacturing that is used in cigarette 23.
With reference to Fig. 5 A, the process 120 that tobacco material is transformed into the serialgram 66s of tobacco net sheet is accepted an extraction step 124 (preferably water) from making tobacco material, so that baccy fiber is separated with the tobacco dissolved matter of initial feed particularly.This tobacco material preferably includes stripped leaf, but other forms of tobacco and/or tobacco leaf are suitable for in managing herein.Preferably this stripped leaf comprises flue-cured tobacco and burley, and can comprise east tobacco or other kinds alternatively.
Handle 124 baccy fibers of collecting itself from this extraction and accept a kind of papermaking formula processing procedure 126, to form the continuous sheet 68s of tobacco net.
In this processing procedure 126, the baccy fiber that derives from extraction step 124 is dispersed in the water under the situation of the cellulose fibre that adds predetermined quantity, and this cellulose fibre plays strengthening agent in the prescription of this spacer screen 68.Preferably, this cellulose fibre comprises the making beating cellulose that comes from timber, flax and/or offal.In case combination, the baccy fiber of this mixing and cellulose fibre are just by the even net slurry 128 that is suitable for the system of copying with formation in copying system step 130 of essence, in this step this net slurry 128 be introduced to a lapper copy in the carton configuration and the online of a fourdrinier paper machine or on a ring steel belt, copy system, preferably the former.
Preferably is the smart dispersed mixture of sparing baccy fiber and strengthening agent after two kinds of compositions are mixed.They can distinguish smart even combination then as an alternative.
After copying system step 130, resulting net 123 is conducted through one or more dryers for 134 li at baking step then, this step preferably comprises makes this Netcom cross a Yang Ji dryer and one or more pot type dryer, but known in correlation technique have many alternative arrangements and device to can be used to carry out this baking step 134.When this net baking step 134 finishes, carry out a monitoring step 136 so that measure the moisture and the weight of the net of this oven dry.Be used for adjusting baking operation 134 so that the water content that in this spacer screen sheet material 68s, realizes and keep wanting for follow-up coating operation 144 about the output 138 of the mensuration of moisture.In coating operation 144 the sheet material 68s of this spacer screen preferably moisture by weight for or be about 15%.
Refer back to this monitoring step 136, be used for adjusting this operation of copying system step 130 so that in this spacer screen 68, realize aforesaid best basis weight about the output 140 of the weight of spacer screen sheet material 68s.This adjustment is included in this and copies the flow of copying the net slurry 128 in the carton that lapper is introduced in li change of system step 130.
Become net step 126 can also comprise an application step 143 alternatively, this step is coated with the side of this spacer screen 68s along this spacer screen 68s side relative with the side of accepting tobacco spice 70 by the above content with alginates.Yet best way is not to be coated with alginates and down to carry out.When b245 finished in this one-tenth net processing 126, this spacer screen was the form of a continuous sheet 68s, and this sheet material is drawn towards and carries out this coating operation 144.As an alternative, it can be collected for follow-up off-machine coating operation.Yet, preferably when forming the sheet material 68s of spacer screen, directly enter coating operation 144.
Preferably, this spacer screen 68s is with about moisture of 12 to 17%, is more preferably 14.5% to 15.5% moisture and enters coating operation 144.
Refer back to this extraction step 124, the tobacco dissolved matter to be to comprise about 5 to 10% dissolves tobacco compositions (dissolved matter), and this extraction step 124 is left in the formation that is more preferably the weak solution of 7 to 8% dissolves tobacco composition.Preferably, this weak solution is not handled by any evaporation, so that heat is reduced to minimum to applying of this solution.The fragrance that is provided by this tobacco dissolved matter when sucking as the part of cigarette 23 may be provided in applying of heat.
These dissolved matters (also being " institute's extract ") that derive from this extraction step 124 are at 146 li of blend steps and the thin offal, glycerine and the pectin that add, be mixed together together with water, all are all in realizing at last that as mentioned above the relative populations at the final ratio content of the dried state of this tobacco material 70 mixes.Interrelate with this blend step 146, water is by be enough to realize that about solids content of 20 to 35%, the quantity that is more preferably the dispersion liquid of about solids content of 24 to 26% add (or control) when this blend step 124 finishes.The offal particle of mixture should be within the scope of 60 to 400 meshes, and wherein " mesh " speech is meant that tobacco particle has given per square inch hole count and screen cloth with 95% percent of pass by one.Be more preferably, the offal particle of this interpolation is in the scope of about 100 to 200 meshes and preferably about 120 meshes.
If the size of mesh of determining this offal particle above 120 meshes, is or is about 180 to 220 meshes that then the solids content of this making beating tobacco material may be enhanced when this blend step 146 finishes, and for example arrives about value of 28 to 31% or rather.
When this blend step 146 finished, resulting making beating tobacco material is directly guided to entered this coating operation 144, but also can be alternatively in afterwards certain time off line ground carry out.144 li of this coating operations, this making beating tobacco material should have the solids content of about 22 to 27% weight, be more preferably or about 24 to 25%.
In this coating step 144, this making beating tobacco material has the target weight percentage of 4 to 8% tobacco dissolved matter, is more preferably the tobacco dissolved matter of 5.5 to 6.5 percetages by weight.Preferably, under this making beating tobacco material temperature in about 70 to 130 scopes, be more preferably or under 90 °F ± 5 °F, enter this coating operation 144.
This application step 128 is preferably carried out with the contrary roll-coater that is positioned at above the station symbol standard after the Yang Ji dryer of this endless belt or fourdrinier paper machine net.This application step can be carried out with other suitable apparatus for coating, these devices be into the those of ordinary skill of net operation technical field known and can buy.This tobacco material 70 can be copied and make or extrude on this spacer screen 68 as an alternative.Otherwise this application step 128 can be separated off line with the production of this spacer screen sheet material 68s and be carried out.During this application step 128 or afterwards, the words of wanting can be added on spices conventional in the cigarette industry.
When coating operation 144 finishes, produce the continuous sheet 66s of a tobacco net.
Referring now to Fig. 5 B, this process proceeds to all steps 122 of strip coil 66b that the sheet material 66s of tobacco net are transformed into the tobacco net of the automated production that is suitable for cigarette 33 now.Preferably, online the carrying out of production of the continuous sheet 66s of all conversion step 122 and tobacco net.During carrying out all conversion step 122, the operator should be avoided among this tobacco net sheet material 66s and to produce fracture, tears or the condition of other defect, with seldom or be provided with the tobacco net that in volume 66b, obtains continuous reeling with splicing.In addition, this tobacco net sheet material 66s should handle like this, so as when all conversion step 122 to finish this tobacco net will be not self adhesion and can promptly batching and uncoiling from this volume 66b on non-cracking ground.
All conversion step 122 are since a baking step 146, preferably the sheet material of this tobacco net 66s passes a combustion type hot blast impact dryer continuously in this step, the pattern that can buy from the Airtech system house of Maine State Stroughton for example, feed is perhaps used a steam-heated air flow dryer.Can adopt known other dryers in net-forming technology as an alternative.This baking step 146 should carry out with minimum heating load, but this heat will be enough to this tobacco net 68s is dried about total moisture of 8.5 to 12% when this baking step 146 finishes from its reset condition (spacer screen about 15% moisture and in this coating itself about 75% water content).Be more preferably, the tobacco net sheet material 66d of being dried is in the scope of about 10 to 11% moisture.This final moisture is because some kinds of reasons but best: be convenient to the branch cutting process in the later phases of this transition process 122; Set a water content, this water content approaches the value of this material with balance when depositing and/or deliver to manufacturing facility; And definite water content, this water content is avoided viscosity and this spacer screen material adhesion on itself in this strip coil 66b.
After this baking step 126, this tobacco net sheet material 66d of drying is cooled to environment temperature, and preferably it possible deposited the environment temperature of place and/or supporting manufacturing facility, usually in 65 to 80 scope.This cooling step 148 not only promotes the balance of 66 pairs of working environments of this tobacco net, and avoids heat to remain in danger among the strip coil 66b, otherwise this residual heat may start one from heating process.If make its development, add the degeneration that heat energy causes the subjective characteristic of extreme temperature and this tobacco net 66 certainly.Preferably, this cooling step impacts cooler with the air of the water quench that can buy from the Airtech system house of Maine State Stroughton to carry out, though many alternative cooling systems are known for the those of ordinary skill in the net-forming technology.
After this net oven dry and cooling step 146 and 148, the tobacco net sheet material 66dc of drying and cooling off passes one and eliminates crimping equipment, for example the sort of or some other the suitable net that provided by Maine State Thermo Electron WebSystem company originally difficult to understand are eliminated hemming devices, as being easy to known for those skilled in the art in correlation technique into the net and buying.When this elimination crimping step 150 finished, this tobacco net 66 had not had the thermic warpage and has been in to be used for the follow-up state that batches and cut step 152 and 154 basically along its edge.Yet before carrying out these steps, be preferably in temperature, water content and the gross weight of monitoring it when this tobacco net sheet material 66s leaves this elimination crimping step, so that the feedback and the control of this process are provided, thereby guaranteeing that this tobacco net sheet material 66s is in is used to the state that batches and cut and will produces the temperature wanted for this strip coil 66b and the desired value of moisture, gross weight.
Or rather, in the monitoring to this tobacco net sheet material 66, the reading of its gross weight is used for adjusting this coating operation 144, for example adjusts the slit that making beating tobacco material enters the jaw place of the feed flow of this contrary roller coating machine or this coating machine.Reading in these monitoring step 151 place's water content is used for controlling baking operation so that reach target water content as mentioned above in this sheet material.Equally, control this cooling step 148 in response to the temperature reading of the sheet material of netting the tobacco at these monitoring step 151 places 66.
After this, this tobacco net sheet material 66 batches step 152 at one and li is batched, and this step is to be easy to known for the those of ordinary skill in the net treatment technology and net coiling machine that buy carries out with one.After this, the tobacco net sheet material 68s slitting of spooling becomes each strip coil 66b, and wherein the cutting width correspondence of each strip coil the girth of wanting of cigarette 23.
When all conversion step 122 finish, this strip coil 66b is in the automated manufacturing status of processes that is used for cigarette 23, for example with reference to commonly assigned, the co-pending U.S. sequence number 07/943 that proposes on September 11st, 1992, the clustered operation that Fig. 6 of 504 discloses, this application is contained in this as a whole by reference.
The formation that glycerine in this tobacco material 70 plays the agent of a kind of smog omen and promote visible smog during the smoking of cigarette 23.In addition, along with this glycerine is released in the atmosphere, it is condensing and the outward appearance of generally smoking being expected is provided.As an alternative, can adopt other wetting agents that are applicable to tobacco.
Alternatively, after this copies system step 123, can before this application step 126, between or afterwards along side coating alginates of this net 68.This alginates coating provides added strength and forms film along side of this spacer screen 68.Yet, do not have this spacer screen 68 of alginates that enough intensity is also arranged, and best practice is not have it and constitute this spacer screen 68.
The present invention can realize with the spacer screen 68 (carrier) of other types, comprising in co-pending, commonly assigned jointly u.s. patent application serial number 07/943,504 (PM 1550); Sequence number 07/943,747 (PM 1655); And commonly assigned U.S. Patent No. 5,388,594 (PM1697); And we pass on European patent application EP-A-0, carbon fibre web described in 615,411 or metal or screen cloth, all these files are included in herein as a whole by reference.
About at EP-A-0,615,411, with in commonly assigned U.S. Patent No. 5,388,594 (PM 1697) its continuation application is the sequence number 08/380,718 (PM 1697 is continuous) that proposes September 30 nineteen ninety-five and the carbon fibre web that disclosed in common co-pending with this paper, a kind of optimum formula of this net comprises a spacer screen 68, and this spacer screen is included in 20-30g/m
2In the scope, be more preferably about 24 to 28g/m
2, 26g/m preferably
2Baccy fiber; At 2-9g/m
2Scope in, be more preferably 2-4g/m
2, and preferably about 3g/m
2Carbon fiber; And about 0.5 to 1.5g/m
2, and preferably about 1g/m
2Pectin.Preferably, these compositions are balances, have about 30g/m so that establish
2The spacer screen 68 of total basis weight.Also be preferably to adopt carbon fiber, so that during the slurrying part of this process, promote its dispersion with 1/4 inch filament length.When adopting, during those programs of being disclosed in 083 and No.4,234,379, can promote the starting of the dispersion of carbon fiber material for example in U.S. Patent No. 4,007.
In this alternate embodiment (i.e. this carbon fibre web) of this tobacco spacer screen 66, this total final dry plate material weight preferably is about 160g/m
2, 30g/m wherein
2Constitute and 130g/m by this spacer screen 68
2Constitute by this tobacco material 70.As a comparison, the better embodiment of the not carbon fiber-containing of this tobacco spacer screen 66 has about 170g/m
2Dry plate material weight, 40g/m wherein
2Constitute and 130g/m by this spacer screen 68
2Constitute by this tobacco material 70.
No matter adopt the spacer screen 68 (or carrier) of which kind of type, this tobacco material 71 preferably is arranged on the inner surface of this spacer screen 68 and discharges the smog (response) of tobacco flavor when heating.These materials also can comprise the oven dry slurry or the oven dry sputtering deposit slurry of continuous sheet, foam, viscose glue, tobacco material.
With reference to Fig. 3 and in conjunction with the commonly assigned U.S. Patent No. 5 that is incorporated into this by reference, 388, teaching of 594 (PM 1697), when the cigarette 23 of this most preferred embodiment was inserted into socket 27, it was directed into this heating fixture 39 and leans on last fixed configurations till a stop 182 of the base portion of this heater fixture 39 up to the free end 18 of this cigarette 23.In case this cigarette is in place, can begin smoking, at this moment the smoker is all surveyed by this puff sensor 45 any suction action of this cigarette, and this sensor and 41 cooperations of this control circuit cause that electric current chosen in advance person in all heaters 37 sends.Electric power sends through a circuit, and this circuit is included in the lead-in wire 183 of each heater 37 1 end, the public ring 184 of the opposite end of each heater 31 and from this public ring 184 to returning a near common lead 186 that extends to all lead-in wires 183.Along with each heater 37 is activated, heat energy is transmitted with enough quantity through overwrap 71 and tobacco net 68, the tobacco flavor material 70 that causes this tobacco net 66 discharges tobacco smoke in the scope of this tobacco rods 60, this smog in response to the smoker to the swabbing action of the mouth end of this cigarette 23 and from this cigarette 23, be drawn out of.
In general the smoker continues about 1.5 to 2.0 seconds to a bite suction of cigarette, and 2.0 seconds the suction duration of FTC cigarette test rules supposition.
Touching at this heater and to distinguish 94 overlapping these 91 places, space, smog directly discharges to this space 91 from the tobacco flavor material 70 that is heated, so it is drawn into very little pressure drop and by this cigarette holder 62.On the other hand, touching at this heater and to distinguish 94 overlapping these tobacco plug 80 (this heater/filling pipe tobacco lap 99) and locate, the neighbouring part of this tobacco plug 80 will be heated along the neighbouring part of this tobacco net 66.Therefore, the fusion tobacco of this tobacco plug 80 will be contributed in total smog their part, thereby contribute their local flavor and other subjective characteristics.Near the smog that is discharged from this tobacco plug 80 at this heater/filling pipe tobacco lap 99 places or it stands certain filtration and pressure drop along with it is drawn through this tobacco plug 80 and enters this space 91.
Feature that the smog that is produced by the heating of this tobacco plug 80 has and local flavor can be by tobacco fusion and this heater touching what the adjustment change of distinguishing 94 overlapping these tobacco plug 80.Near the smog composition that produces this space 91 discharges sooner from this cigarette because have at these 91 places, space less thermal inertia and because the tobacco material of this space this thermal evaporation of 91 places do not bear this tobacco plug 80 pressure drop but by this freely flow filter tip 74 more directly ditch lead to this cigarette holder 62.Yet it have with from the different feature of this tobacco plug 80 releasers discharge because it mainly is a tobacco flavor material 70 from the spacer screen 68.Hereinafter will illustrate in greater detail, and have been found that for the smoker is satisfied, the smog that sends from cigarette 23 preferably comprises two kinds of smog compositions and sends immediately and comprise and belong to the fragrance characteristic that pipe tobacco is filled in fusion to the smoker so that guarantee.In following teaching, will come into focus consistent smoking and promote uniformity between the cigarette between a bite that the existing of this space 91 (and it begin immediately be fuming) guarantees this cigarette 23 and a bite.This pass ties up to a bite and the contribution flatly of the contrast of the cigarette 23 (have and fill pipe tobacco bolt 80 and space 91) that fills up according to the part of this most preferred embodiment formation, cigarette 23 with first alternate design of filling pipe tobacco ' (Fig. 6 a) and have in the contrast of second alternate design that the tobacco of the parcel that fills up with the filling pipe tobacco fully nets and confirm with having in the tobacco of its parcel net not.In the description of these alternate design, be noted that as in this most preferred embodiment, this tobacco net 66 ' and 66 " comprise a spacer screen 68 and a tobacco bed of material 70.All tobacco rods 60 of these alternate design ' also comprise overwrap 71.
The formula of a crawling heating element with 15 Joule energies setting value is used for producing as given correction data among Fig. 6 B and Fig. 7 B with the cigarette shown in Fig. 6 A and Fig. 7 A respectively.
With reference to Fig. 6 A, a cigarette that is suitable in the electrical smoking system of first alternate design, sucking comprise a tobacco rods 60 ' and cigarette holder 62 ', they respectively comprise and are marked with band to cast aside the parts of label of " ＇ " corresponding with the parts of the most preferred embodiment shown in Fig. 4 A.Yet, cigarette 23 ' tobacco rods 60 ' not any filling pipe tobacco of its tobacco net 66 ' middle inclosure and this tobacco rods 60 ' free end 78 ' be provided with refluence filter tip 200 '.This tobacco net 66 ' spacer screen 68 ' for comprising the type of carbon fiber as mentioned above.Cigarette 23 ' structure also in commonly assigned US Patent No, introduce in detail in 5,388,594 (PM 1697), this patent is used it as integral body and is comprised by reference.For following description, will this cigarette 23 ' call do not have the cigarette of filling coil of wire cigarette 23 '.
Referring now to Fig. 6 C,, experiment cooperates a cigarette smoking system 21 to carry out with a smoking machine.The output of this smoking machine is conducted through a cigarette measurement mechanism 6y who has transparent chambers 6v during every mouthful of suction, and a branch of there light that comes from light source 6w passes 6v to photo-detector 6z at the offside of the side of this transparent chambers 6v of this transparent chambers.The output of this optical sensor 6z is processed so that the intensity of identification this light beam 6u when it is shining sensor 6z.Any tobacco smoke that passes this chamber 6v will have light scattering effect to this light beam 6v, so that any change in the luminous intensity that this photo-detector 6z place is detected all will be the opposite indication of particle total amount (TPM) in this smog.According to FTC cigarette test convention, preferably this smoking machine is from 2 seconds a bite cigarettes of these cigarette smoking system 21 suction standards.
Along with having one, this smoking machine do not fill pipe tobacco cigarette 23 the carrying out of every mouthful of cigarette of suction successively with the information that curve map appears among Fig. 6 B, at the intensity of time representation at this smoking measurement mechanism place record.These data show following tendency: promptly the cigarette 23 of a no filling pipe tobacco ' situation under, first and second mouthfuls of cigarettes and its excess-three mouth cigarette are inconsistent, the three mouthfuls of cigarettes after unanimity that is compared to each other; And for every mouthful of cigarette, before 2 seconds past time cycle, promptly sent smog well.This nothing fill the amount of being fuming of pipe tobacco cigarette 23 ' when former mouthfuls of cigarettes little consistent and only in several mouthfuls of cigarettes in back uniformity just arranging.About the data of first mouthful of cigarette are rather consistent with overview, unless promptly implement the repairing measure as this tobacco rods 60 ' on perforation or U.S. Patent No. 5,388, other measures of being taught in 594 (PM 1697), cigarette 23 of do not have filling pipe tobacco ' machine smoking during first mouthful of suction, send less smog.
Referring now to Fig. 7 A, but the cigarette 23 of an electric operation " another kind design comprise a tobacco rods 60 " and a cigarette holder 62 "; this tobacco rods and this cigarette holder have and similar member of most preferred embodiment and the configuration shown in Fig. 4 A, and similarly member has two and casts aside labels.Yet, between this refluence filter tip 200 " and this freely flows filter tip 74 " of the refluence filter tip 200 that the cigarette 23 of Fig. 7 A " comprises at free end 78 " " and at this tobacco rods 60 " along this tobacco rods 60 " total length extend filling pipe tobacco post 220 ".This cigarette 23 " this tobacco column 220 " comprise bigleaf tobacco, boundless and indistinct leaf burley and east tobacco with 0.275g/cm
2The admixture of rod density.This tobacco net 66 " spacer screen 68 " is for comprising the type of carbon fiber as mentioned above.In the following discussion, this cigarette 23 " will be called the filling pipe tobacco cigarette 23 that fills up fully ".
Referring now to Fig. 7 B, from the mensuration of the luminous intensity of this smoking measurement mechanism 6y by at numbering 1 to 7 to this filling pipe tobacco cigarette 23 that fills up fully " a series of suctions and the time history of every mouthful of cigarette interrelate.What occurred among Fig. 7 B is data represented according to the filling pipe tobacco cigarette 23 that fills up fully " two kinds of discernible trend in the performance of a cigarette that constitutes: promptly several leading mouthful of cigarette provides the effectively amount of being fuming; but this after-fume amount but drops to a kind of like this degree, and promptly back three mouthfuls of cigarettes provide the amount of being fuming (unless taking correction means) that significantly is less than several leading mouthful of cigarette; And fill up fully at this and to fill pipe tobacco cigarette 23 " situation under, be fuming and postponed and several leading mouthful of cigarette (the 1st, 2 and 3 mouthful of cigarette) just can reach the amount of being fuming of maximum up to the major part in 2 second cycle is over and done with after.
During several leading mouthful of cigarette, this cigarette that fills up fully 23 " tends to send the cigarette 23 ' bigger smog cumulative volume of filling pipe tobacco than this nothing.The contrast of the data that provide among Fig. 7 B and Fig. 6 B confirms this-overview, promptly at the filling pipe tobacco cigarette 23 that fills up fully " Fig. 7 B in several leading mouthful of cigarette curve top the gross area greater than at do not have fill pipe tobacco cigarette 23 ' Fig. 6 B in the gross area of several leading mouthful of cigarette curve top.The area of every mouthful of cigarette curve top is the indication of the amount of being fuming always during this mouthful cigarette among Fig. 7 B and Fig. 6 B.
Yet, it is believed that this filling pipe tobacco cigarette 23 that fills up fully " be fuming postpone lure into a smoker to him or she not immediately from this cigarette 23 " obtain that the fragrance response is reacted and the suction of more exerting oneself that extends.This suction of more exerting oneself itself may make the heated portion of this overwrap 71 " and this tobacco net 66 " become again and be consumed (oxidation) more completely by the additive air through their suctions, causes during several leading mouthful of cigarette this tobacco column 220 to occur " more obvious destruction and possible local collapsing.In addition, started in the cigarette that this fills up fully in case it is believed that pyrogenetic decomposition, it just tends to oneself's maintenance more, because exist the flammable tobacco and/or because its comparatively dense state of a greater number.In a word, because air may be through easier this tobacco rods that is drawn in " burning " jaggy position of several leading mouthful of cigarette, so these local breach it is believed that the air flow path short circuit of wanting of several mouthfuls of cigarettes later on.Therefore, the amount of being fuming is at the filling pipe tobacco cigarette 23 to filling up fully " descends during several mouthfuls after smoking.
The data that provide in Fig. 7 B are consistent with overview with above explanation, i.e. filling pipe tobacco cigarette 23 that fills up fully ' or the cigarette of a routine when they are sucked with electric igniter, tends to reduce along with it is aspirated the amount of being fuming.
Because its postponement, and the self-more pyrogenetic decomposition that keeps, this cigarette that fills up fully 23 ' tend to produces a large amount of smog this mouthful cigarette than after-stage, and surpassing the smoker may continue to produce some after the actual time cycle of aspirating to cigarette smog sometimes.Latter event may cause the generation of " suction back " smog, and this smog may be paced up and down in the housing 33 of igniter 25, especially near heater fixture 39 or its.Some should " suction back " smog will have problem ground to be enough to be inhaled into this cigarette 23 during a bite cigarette down condensing on the heating element 33 or continue to pace up and down to ".Each consequence all is unfavorable for happiness and the sending of consistent local flavor.
Refer back to Fig. 6 B, this nothing fill pipe tobacco cigarette 23 ' all mouthful of cigarette curve proof amount of being fuming reach maximum (all mouthful of cigarette curve inclination maximum) before passing by far away in 2 second duration of a bite standardization suction, and the amount of being fuming this mouthful cigarette than the after-stage minimum, so the generation of " suction back " smog does not have the pipe tobacco of filling cigarette 23 ' be out of question for this.Yet as mentioned above, this nothing is filled pipe tobacco cigarette 23 ' always and is fuming volume less than this filling pipe tobacco cigarette 23 that fills up fully "; it sometimes during several leading mouthful of cigarette the amount of being fuming inconsistent, and if its lack and comprise that pipe tobacco is filled in fusion (even non-fusion) then subjective characteristic and the diversity that can taste.
Fig. 8 be personal aforesaid smoking determinator 6y to fill the cigarette of pipe tobacco cigarette 23 ' constitute according to this nothing; The filling pipe tobacco cigarette 23 that fills up fully "; And the expression of the data of the contrast smoking of filling pipe tobacco cigarette 23 on smoking machine of filling up according to the part of teaching formation of most preferred embodiment of the present invention (as shown in Fig. 4 A).Carbon fibre web is used for all these cigarette as spacer screen, will disclose as the discussion to the data of Fig. 8, and the filling pipe tobacco cigarette 23 that part of the present invention is filled up provides the amount of being fuming of comparison unanimity in whole smoking.It has avoided the filling pipe tobacco cigarette 23 that filling up fully " back several mouthfuls of cigarettes in the reduction of the amount of being fuming that occurs and the amount of being fuming during several leading mouthful of cigarette than there not being the pipe tobacco of filling cigarette 23 ' more consistent.
Reception test is used for filling pipe tobacco cigarette 23 usefulness that the section data of Fig. 8 fills up with collection fills pipe tobacco and partly fills up, and causes in this cigarette design the lap of heater on the space bigger, is about 6mm.The all heating elements 37 that are used for producing the data that provide among Fig. 8 are the formula of crawling of every heat cycles 15 Joule energies.
With reference to Fig. 8, the data that wherein provide are the amount of smoke (milligram) that produced during preceding 2 seconds of every mouthful of cigarette in the carrying out of suction during the smoking of the cigarette of every kind of particular type particularly.With regard to the data that provide among Fig. 6 B and Fig. 7 B, the amount of smoke shown in Fig. 8 will be resolved the integration (area that curve top defined) of ground corresponding to Fig. 6 B and from 0 to 2 second every mouthful of cigarette curve of 7B.
Data shows the filling pipe tobacco cigarette 23 that fills up fully with expressing clearly among Fig. 8 " time experienced descend from first mouthful of cigarette to the amount of being fuming of all mouthful of cigarette later on.As a comparison, do not have to fill the pipe tobacco cigarette unlike the filling pipe tobacco cigarette 23 that fills up fully " stand the amount of being fuming and descend.
The expression of data also clearly illustrates that among Fig. 8, and do not have to fill pipe tobacco cigarette 23 ' compare, and the filling pipe tobacco cigarette 23 that part is filled up is provided at the uniformity of the amount of being fuming in all 6 mouthfuls of cigarettes.In addition, it is to fill pipe tobacco the contribution of its local flavor and subjective effect to be done like this.
With reference to Table II, collected data show how the variation of the lap of heater on the space in a cigarette that constitutes according to cigarette 23 can influence the amount of being fuming.The data that provide in the Table II are that the machine smoking of the cigarette that filled up by some parts produces, these cigarette have the tobacco rods of 32mm, freely flow filter tip and the long cigarette holder of 30mm at the 7mm of the mouth end of this tobacco rods, wherein all heaters are touching the tobacco rods of every cigarette is grown and is centered in the district for 12cm mid point.
The standard error of the mean 0.34 0.53 0.50 that the average T PM (casting out least count) 5.2 5.9 7.3 that heater lap (mm) the 11 85 average T PMs 4.9 5.5 7.0 of Table II gap lengths (mm) 47 10 along heater lap (mm) 147 in space along tobacco plug adjust adjusts
Fig. 9 provides the particle total amount (TPM) the sent avatars to heater-filling pipe tobacco lap (millimeter).Data shown in it are to adopt the standard test method of measuring FTC " tar " grade to produce at interval with V-shape base and suction in 2 seconds on the standard smoking machine.All tested cigarette are to have the filling pipe tobacco cigarette that the part of carbon fiber spacer screen and 58mm total length is filled up, and just the data that occur along the longitudinal axis among Fig. 9 are to fill the pipe tobacco cigarette by the nothing that has carbon fiber spacer screen and same total length to obtain.When heater-tobacco lap changed, heater is touching distinguished the mid point that keeps constant length and also keep being centered in tobacco rods.Therefore, any increase of heater-tobacco lap all causes heater-the proportional of space lap to reduce.Heater is that the heater with about 10mm is touching the formula of distinguishing of crawling.All data that gather show that existing a kind of secondary in these cases between the particle total amount of being sent and heater-filling pipe tobacco lap concerns.The independent data group that provides in data that provide among Fig. 9 and the Table II shows, in the filling pipe tobacco cigarette that part is filled up, can adjust heater-filling pipe tobacco lap (target) smoke values to obtain wanting.
Owing to some reasons, in the filling pipe tobacco cigarette that part is filled up, adjusting heater-filling pipe tobacco lap is the best approach that reaches " tar " grade of wanting, comprises in these reasons that the change of having found heater-filling pipe tobacco lap has than the strong more and controllable influence in the change of tobacco plug 80 place's rod densities the amount of being fuming.In addition, this method makes people to select rod density in the tobacco plug 80 for the purpose beyond the tar grade, for example controls loose end and/or causes pressure drop and/or the degree of filtration of wanting at the free end 78 of tobacco rods 60, perhaps promotes in addition to make.It also is provided at the ability that changes the tar discharge rate in the relevant cigarette product and need not change tobacco net 66 or tobacco plug 80.
Dispose the relative size of filling tobacco cigarette 23 that this part fills up and the heater fixture 39 of this igniter 21, cause when cigarette 23 is inserted igniter 21, each heating element 37 is located like this along tobacco rods 60, promptly if not all, at least also being fill up partly (on the tobacco plug 80) that a part of heater is touching only overlapping this tobacco rods 60 in district, also is desirable.In this configuration, space 91 also encourages the formation of smog and assists this smog of cooling.It is believed that this provides a flow resistance to help lend some impetus to smog when freely flowing filter tip 74 by it all smog compositions are extracted out from broader space 91 along with them and forms.In this respect, this that is noted that this tobacco rods 60 freely flows filter tip 74 transition position between it and this space 91 on the one hand, on the other hand at it and freely flow and provide seamed edge 72 and 75 between the filter tip 102 respectively.These seamed edges 73 and 75 are that this freely flows filter tip 74 and has result than each all little internal diameter of other two neighboring regions (space 97 freely flow the space that filter tip 102 is surrounded with this).It is believed that gas phase and particle phase constituent that these seamed edges 73 and 75 (and other possible adjacent parts that should freely flow filter tip 74) encourage being discharged by the heated portion from tobacco rods 60 form the favourable turbulent condition of smog and other flow regimes.
Referring now to Figure 10, cigarette 23a another most preferred embodiment according to the present invention constitutes, it has identical member and the configuration of presenter in the discussion with cigarette 23 in the view of Fig. 4 A, but has the refluence filter tip 200a of the free end 78a that is positioned at tobacco rods 60a.This refluence filter tip 200a prevents that at free end 78a tobacco is unrestrained from tobacco plug 80a.This freely flows filter tip 200a and can also wounded look is used for electrical smoking device person rather than is used for as more traditional cigarette with match or the conventional cigarette lighter person of lighting so that indicate this cigarette 23a.Though should refluence filter tip 200a be painted as the independent member of this wraparound tobacco plug 80a, people can make up this tobacco plug 80a and this refluence filter tip 200a for cigarette 23a is easy to make with a bolt wrapping paper (not shown).With this filtering bolt that flows backwards, this cigarette 23a can be provided with the tobacco plug 80a with low rod density and not have for example loose end or tobacco from unrestrained and so on the dangerous problem of tobacco rods 60a.As at EP-A-0,615,411, with the common co-pending and commonly assigned u.s. patent application serial number 07/943 that proposes on September 11st, 1992, in 504 (PM 1550) and in commonly assigned U.S. Patent No. 5,388, that is disclosed among 594 (PM1697) is such, this refluence filter tip 200a is configured to limit or prevents that fully when a bite cigarette exhausts smog from overflowing and cause a pressure drop at this free end 78a from the free end 78a of this tobacco rods 60a, so that advantageously limit the air capacity that sucks cigarette 23a from this free end 78a, the proportional air capacity that enters at side along tobacco rods 60a.
The method for designing of the filling pipe tobacco cigarette 23 that fills up about the part of this most preferred embodiment, heater energy and heater-filling pipe tobacco lap can be used for establishing and/or adjusting the amount of being fuming to " tar " grade of wanting.Therefore, in the process of the filling pipe tobacco cigarette 23 that a kind of new part of design is filled up, the selection of rod density generally can be used to be implemented in the pressure drop degree wanted at free end 78 places and/or control is flow backwards in this tobacco plug 80, with the identical mode of the refluence filter tip 200a implementor of institute with another embodiment 23a.
Referring now to Figure 11, another cigarette 23b that another most preferred embodiment according to the present invention constitutes comprises a tobacco plug 80b, and this tobacco plug comprises a low-density part 310b and the high density part 320b in abutting connection with the free end 78b of this tobacco rods 60b in abutting connection with this space 91b.This cigarette 23b is configured to this heater and is touching the low-density part 310b that distinguishes overlapping this tobacco plug of 94B 80b so that obtain the high amount of being fuming that the lower rod density of usefulness can be realized.The high density part 320b that fills pipe tobacco is configured to the end of avoiding loose and the air conveying capacity of passing through bar 60b with the mode restrictive axial that is similar to refluence filter tip 200a.
Some best heater embodiment are shown in Figure 12 to Figure 21 at present.These heaters are suitable for so far described any cigarette; Be Fig. 4 a, 4b, 6a, 7a, 10 and 11 fill up fully, part is filled up and do not have the pipe tobacco of filling cigarette, and the modification thing of these cigarette.
These heaters for cigarette repeat to insert, adjust and take out the mechanical strength of having improved is provided, and when keeping energy requirement, increase the cigarette generation smog that is heated from one significantly.Have been found that the heater that the smog that is produced tends to leave pulse radially inwardly flows.
In general, 8 heater chip 121 are preferably arranged, imitate the puff number of a conventional cigarette whereby so that when lighting all heater chip 121 successively, provide 8 mouthfuls of cigarettes.Specifically, all heater chip 121 are arranged the cigarette 23 of admitting an insertion from centre slice 110 extensions with the cylindrical shape that forms heating plate.Preferably, between the heater chip 121 of adjacency, define a gap 129.
May want to change the puff number of when a cigarette inserts cylindrical socket CR, being realized, thereby change the number of heater chip 121.This mouth number of wanting is that the number of the heater chip 121 wanted by formation is realized.This can realize by size sheet equal or that do not wait is set.
The heater fixture is positioned at igniter 25 mesopores 27.Cigarette 23 is inserted into, optionally refluence filter tip 200 at first enters, hole 27 in the igniter 25, enter a columniform substantially space of this heater fixture 39, this heater fixture has an annular cover 83 that has the openend of admitting this cigarette, a cylindrical air flow channel cover 87, a heater assembly 100 that comprises all heater chip 121, conduction stitch or a common lead 104A, this stitch is used from the effect of common lead of all heating elements of this heater assembly, the positive stitch of some conductions or lead-in wire 104B, and slider.This slider bottom interior surface 81 is limited in a position of wanting in this heater fixture 23 to this cigarette 23, cause all heater chip 121 to be positioned to cavity 79 in this cigarette, and in a most preferred embodiment by according to above at the described person of Fig. 1 to Figure 11 location.
Basically whole heater fixture 39 is disposed in inside and with close adaptive housing 31 fix in position that close with the front 33 of this igniter 25.An edge 93 forward of this cover 83 preferably is positioned at or first end 29 of protruding slightly this igniter 25, and preferably includes an inner bevel or fillet part so that guide this cigarette 23 these heater fixtures 39 of turnover.Stitch 104A and 104B preferably are accommodated in the corresponding socket (not shown), whereby in this igniter 25 for this heater fixture provides supporting, and some leads or printed circuit are guided various electrical equipments into from this socket.Other stitches can provide additional supporting to reinforce this stitch assembly.Stitch 104A and 104B can be constituted and preferably are made of tin-phosphor bronze by any suitable material.Be communicated with the sensor 45 of suction operation at separator and the passage at the end 50 47, and have or not cigarette 23 in optical sensor 53 these igniters 25 of detection.
As Figure 12 and seen in fig. 13, preferably a kind of overall structure of this heater assembly 100, it comprises from the arrangement of a center hub 1110 with symmetry, perhaps, sees below the debater of Figure 19 institute, extends 8 heater chip with asymmetric arrangement.See that as clear among Figure 13 this heater assembly defines an insertion mouth 360 that has throat 365, its guides the cigarette that inserts into the coaxial cylinder socket CR that defines, and this cylinder socket has than inserting mouthfuls 360 little diameters.Insertion mouth 360 is defined by the end 118B separately of all linkage sections 118 of all heater chip 121, and throat 365 is defined by all section portion 118 between all connections edge 118A and all end 118B.Insertion end 360 preferably has than the cigarette 23 big diameters that inserted so that this cigarette is guided into socket CR, and this socket CR has the diameter that approximates this cigarette 23 greatly close adaptive the closing with the good communication that guarantees to be used for heat energy.Cigarette 23 preferably has the diameter that approximates technical known diameter range greatly.Given in the transition of acceptable manufacturing tolerance between far-end and this socket CR of cigarette 23 narrowing the district gradually or throat 365 also can be used for this cigarette of mild compression so that increase the thermo-contact with the sheet 121 on every side that plays the effect of socket inwall.As nonrestrictive example, insertion end 360 preferably has about 0.356 inch ± 0.02 inch internal diameter, and socket C preferably has about 0.278 inch ± 0.02 inch internal diameter.All 120 can in the curved so that diameter by this cylinder socket of constriction increase thermo-contact with cigarette.
Each U-shaped heater chip 121 comprises first section or a leg 116A extending from center hub 111 at first end, a linkage section 118 that is connected in opposed second end of this first section or leg 116A, and second section or a leg 116B who extends to center hub 111 from link 118 at first end.The first leg 116A may separate in relative constant gap 125 by one with the second leg 116B, preferably parallel substantially under deployed condition as hereinafter in Figure 18 and Figure 19, discussing, along the cigarette direction of insertion be continuous in case reduce the undesired scraping of cigarette and be orientated to define one for the cylinder socket CR of the cigarette that inserts 23 usefulness.Linkage section 118 has the opposed inner edge of the connection edge brace leg 116A of a bending and 116B so that form the resistive path of a lengthening, this path is parallel to the longitudinal axis of the cigarette that is inserted substantially and extends along this cigarette, as following discussing in more detail.Crooked connection edge 118A preferably has about 180 ° ± 20 ° flexibility, so as to form the U-shaped sheet and have one recessed and towards the centre slice hub towards inserting mouthful 360 flexibility of protruding.The width that can have increasing at the first end of the first leg 116A in center hub 111 places, have the about thickness identical at part 115 places, thereby so that reduce the Ohmic heating of current density and power density minimizing part 115 at part 115 places with respect to the remainder of the first leg 116A.In addition, this one widens the mechanical integrity that has increased sheet 121 at center hub 111 places.
The second end 122 of second leg 116B is preferably raised into a stairstepping with respect to the major part 116B of second fragment so that be electrically connected with separately positive stitch 104B.More particularly, as shown in Figure 12 and Figure 13, end 122 is formed by three sections, in other words, the plane continuity of the major part 116B that one section 122A is second leg basically, a changeover portion 122B rises with illustrated angle, and one to connect end segments 122C parallel substantially with section 122A.All section of end 122 can have than second width that leg 122B is wideer so that gain in strength, at link section 122C place for positive wiring provides enough contact areas, thereby and the current density that reduces end 122 reduce Ohmic heating.End section 122C is tack welding or go up and mechanically be connected in positive stitch 104B with any other method is electric preferably.
Another embodiment that is used for realizing the positive wiring of all heater chip 121 is shown in Figure 14 and Figure 15.Link 122 preferably is not a stairstepping such among image pattern 12 and Figure 13; But it is the plane extension of secondary heater leg 116B basically, and this has simplified the making of discussing below.In order to reduce the possibility of short circuit, this short circuit is along with for example being reversed by the smoker or other modes are adjusted the cigarette that inserted owing to contacting between this positive end 122 and the center hub 111 and/or the first leg 116A produces, a kind of ceramic coating 300 of electric insulation is coated end 122, center hub 111 and section 115, particularly coats the edge of facing separately of these elements.
Preferably, this ceramic coating is with the method for any routine, and plasma sputtering is for example coated center hub 111, connected the section 115 of the end 122 and the first leg 116A.Any suitable electrical insulator all can adopt, for example aluminium oxide, zirconia, Mo Caishi, cordierite, spinelle, forsterite, their combination etc.Preferably, employing has zirconia or other potteries of thermal coefficient of expansion of the thermal coefficient of expansion of close match underlying metal heater structure, avoiding the difference of expansion rate and shrinkage factor during heating and cooling, thereby avoid ftractureing during operation and/or peeling.When this heater element heats, this ceramic layer keeps physically and is chemically stable.For example about 0.1 to 10mil, or about 0.5-6mil, and is more preferably the thickness of about 1-3mil, is desirable for this electrical insulator.Preferably, the part of end 122 coating not.Then, positive stitch 104B is by this exposed parts that is connected in of being discussed.Cover in order to simplify, the appropriate section of section 115 is equally also without ceramic coating.
Pottery also can for example in same plasma sputtering step, coat all ends 122 and all first leg 116A sections 115 between gap 127 in and between all ends 122 and the centre slice 110 in the gap 126 to form the mechanical integrity that a kind of ceramic centre slice structure improves this heater assembly, as shown in Figure 15.The size of this ceramic centre slice structure may be greater than diagram person.With or without this additional pottery coating, this ceramic coating is all ends 122 that just connecting of insulation on electric all, and when the protection that prevents short circuit is provided, can reduce the width of gap 127 and 125.Therefore, the section 115 of the end segments 122 and the first leg 116A can have the area of increasing, further reinforces this socket whereby, and, in the occasion of ceramic centre slice, increase skeleton structure and further reinforce this heater assembly.In addition, such ceramic coating also makes the sharp edge slyness that defines all gaps 125 and 127, thereby reduces scraping and damage the possibility of this cigarette, especially between the smoker inserts, takes out and do any the adjustment period.Otherwise words, whole 121 and particularly the first leg 116A and the second leg 116B on a surface, for example towards the outer surface that leaves this cigarette, inner surface and outer surface, and/or define the edge in all gaps, with a ceramic layer, the about zirconia of 2mil for example, cover fully, to reinforce all heater chip, by wishing to keep the gap.Therefore all 121 can be thinner, for example about 2 to about 6mil, increase the resistance in this heater path whereby and allow all wideer in case when keeping identical sheet all-in resistance the hot interface of increasing and the cigarette that inserts 23.This sheet width that increases is further reinforced this heater structure together with this ceramic layer.In addition, the ceramic coating on all 121 the outer surface that inserts cigarette towards leaving can prevent from the peripherad heat loss of the sheet that is heated.This pottery preferably is coated with through plasma sputtering or any other method described in related application, and preferably be coated with avoiding bringing out residual stress through the electro beam physics vapour deposition, may bring out this residual stress owing to surface treatment and/or particle impacting during with plasma sputtering.
Each sheet 121 forms a resistive heater.More particularly, be connected in the negative terminal of power supply on the first end 115 of the first fragment 116A is electric, and be more preferably center hub 111 an integral body extension or mechanically with electric on be connected in center hub 111, this center hub then connect or as the another kind of method of solder brazing or solder and so on is electric goes up and mechanically be connected in negative terminal stitch 104A through tack welding again.Preferably, adopt two terminal stitch 104A, because negative the connection also is used for mechanically supporting this heater with just being connected so that balanced support is provided.So 111 pairs of all heater chip of this center hub play the omnibus circuit effect.In any one embodiment, the negative connection of each heater can individually be carried out, and for example by a suitable negative contact, this negative contact is positioned at positive contact areas this heater and separately 122 opposed ends.
Just connecting as discussed and carry out separately of each heater chip 121 at the connection end segments 122C place of the second fragment 116B.Connection end segments 122C insulate or isolation by gap 127 and public 110 electric going up; By the first fragment 116A of gap 125 with corresponding heater chip 120, especially first end 115, and electric going up insulated or isolation; And by electric upward insulation of the gap 131 and the heater chip of adjacency or isolation, to avoid short circuit and to allow thermal expansion.In addition, the ceramic coating of being discussed is coated with alternatively.Otherwise, connect end segments 122C ground connection respectively.
The positive and negative connection of being discussed provides a resistor path, more particularly, if this cigarette smoking system when being activated by smoker's suction, provides a circuit that is used for applying to one (some) specific sheets through control circuit from electric energy electric current.The main thermal treatment zone of this sheet comprises first leg 116A, marginal portion 118A and second leg 116B.Therefore, the part of the sheet 121 that also contacts the activation of extending abreast below of the cigarette 23 that is inserted will be heated with the outer surface figure corresponding with the heating part of this sheet, promptly with the elongated U font heating corresponding with superincumbent, heating mainly by conduction and radiation, also has some contingent convection current.In addition, the cigarette that is inserted between two legs, i.e. part below gap 125 is by the build-up radiation gesture that heat adds overlapping or that intersect from leg 116A and the two transmission of leg 116B.If gap 125 is too big, overlapping will generation of then wanting and the part of the cigarette that inserts below gap 125 will fully do not heated.In addition, radiant heat and conduction heat will heat the outer peripheral bar shaped part that exceeds heater chip leg 116A and 116B a little of the cigarette that inserts, each heated portion constitutes the heat affected zone of this cigarette 23 together, this heat affected zone extends to the below of leg 116A from the outward flange of the leg 116A of the sheet 121 that exceeds an activation a little, stride across gap 125, to the below of leg 116B, to the outward flange that exceeds leg 116B a little, and this heat affected zone correspondence a bite cigarette that produces tobacco flavor.The size of this heated portion is relevant with the quantity and the duration of the physical dimension of this sheet and heat characteristic and energy pulse.What preferably, this heater chip was determined that size becomes the final heating cigarette that inserts with thermal design has enough sizes, for example a 18mm
2The sector so that the energy pulse that activates in response to suction produces the receptible a bite cigarette of smoker.
The relatively large sheet end region 115 and 122 that forms the part of this current path is not heated to this operating temperature, because their larger volume has reduced current density, thereby has reduced Ohmic heating.Equally, one section that connects end segments 118 is not heated to this operating temperature yet, therefore the relatively large volume of this section formation has than this edge 118A and the direct lower current density of adjacent segments because add that hot path tends to along edge 118A, thereby less Ohmic heating is arranged.In order further to reduce the undesired heating of coupling part 118, people can (1) increase the thickness of the integral material of part 118 with respect to curved edge 118A in regional 118C, so that further reduce current density and Ohmic heating, as shown in Figure 5, (2) on part 118, bore a hole so that reduce ohm and/or heat conduction path, and/or (3) increase an additional radiator material 119 so that reduce heat transmission to this part on part 118, as shown in Figure 6.In order to realize this radiator function, a kind of not Heat Conduction Material, promptly the insulator of pottery and so on is applied.The ceramic example that is suitable for comprises aluminium oxide, zirconia, aluminium oxide and zirconic mixture, Mo Laishi etc., as the occasion in the heater chip coating.Any this modification should be made evaluation at the harmful effect to the mechanical integrity of coupling part 118, and this coupling part is being supported heater assembly 100 and defined the opening that cigarette inserts and extracts.
After a heater chip 121 is by pulse, before the suction that allows the back, there is one period predetermined shortest time.Can also before the heating of wanting, cause the smog generation of undesired and/or part or the thermic degraded of this cigarette portions to the too early heating of the part of cigarette.May cause the follow-up heating of the part that heated in the past and to send undesired smell and local flavor.
If wish flatly than the resulting longer suction of pulse by single heater chip, then this control logic is configured to light immediately another heater or additional heater sheet after the pulse of former heater chip or during the decline of former pulse, so that heat another sector of this cigarette, this additional heater sheet can be radially in succession heater chip or another heater chip.This heater chip should determine that size becomes to obtain having the mouth number of wanting of the duration of wanting.
In one embodiment, the number correspondence of heater chip 121 the mouth number of wanting, for example 8.In another embodiment, the number of formed heater chip 121 is 2 times of mouthful number, for example, has 16 part heaters to be used for one 8 mouthfuls cigarette.A kind of like this configuration allows and lights the about 2 seconds different orders of lighting usually successively, the order that the embodiment of mouth number radially lights successively and preferably be used for the number correspondence of heater chip 121 wherein.For example, this logic circuit can be controlled opposed heater chip 121 on two circumference, and 180 ° the heater chip of promptly being separated by on pipe is lighted simultaneously, produces a bite cigarette so that heat the sufficient amount of cigarette jointly.Otherwise, light after the order at a kind of first of each other heater chip 121 of a cigarette, succeeded by lighting order at a kind of second of the heater chip 121 of all interventions of next cigarette.Otherwise this first lights the predetermined life-span circulation that order can repeat numerous cigarette, begins second then and lights order.Can adopt any combination of heater chip.The heater chip number can less than, be equal to or greater than a quilt suck cigarette the mouth number.For example, one 9 chip system can be used for 6 mouthfuls of cigarette, and wherein the various combination of 6 heaters is lighted at every cigarette successively, and the combination of all the other 3 heaters is not lighted accordingly.
This heater assembly 100 is welded in by stitch 104A that center hub 110 and all stitch 104B are welded in all ends 122 and at one end electric going up and relative fixed mechanically.Stitch 104A and 104B preferably are molded in the plastic socket in advance, perhaps are permanently connected with additive method and it, and preferably the mode with the air leakage rate minimum connects.Preferably, this stiff end and this insertion mouth 360 are opposed.All linkage sections 118 are and the opposed all opposite end 118B of all edge 118A to define all insertion mouths 360 specifically.All end segments 118B outwards enlarging to define throat's section 365.Then all 121 from then on throat's section constriction so that define a slightly smaller internal diameter of external diameter that compares the cigarette 23 that is inserted in the midpoint of for example sheet, thereby provide the thermo-contact of wanting between all and this cigarette, i.e. thrust.More particularly, each end 118B is arranged in the raceway groove 210 of a correspondence, and this raceway groove is arranged in the inwall 201 of igniter end cover 83.More particularly, inwardly the radially outer motion of all end segments 118B of all 121 of bias is stoped by the wall that all end 118B radially outward contact all raceway grooves 210, determines the border for this bias whereby and defines this inside bias.Manufacturing skew in this inside bias can rely on as discussed replenishes.As shown in the figure, the outside enlarging of inwall 201 quilts is so that allow the part of all end 118B insert.The radially outer wall that contacts with end 118B of raceway groove 200 determines size and is shaped to the insertion of the sheet end 118B that allows sufficient amount, causes during this sheet heating or cooling or this cigarette insert or extract this sheet end can not withdraw from from raceway groove 210.Want, this radially outer raceway groove wall is provided with one and the contacted seat stand of all end 118B, for example a ladder.In an alternative embodiment, the part 118D before the end 118B that is inserted of sheet end 118B is done circular, the ellipse of more specifically saying so.This part that rounds makes institute's insertion portion can respond thermic or mechanical induced movement is rotated in raceway groove 210, keeps the institute insertion portion of this sheet end in raceway groove 210 whereby.In addition or otherwise, sheet end 118B is rounded in addition.
In first embodiment shown in Fig. 3, raceway groove 210 is determined size like this, promptly when cigarette 23 inserts and/or heats a sheet, the end 118B of heater chip 121 can be in the mode of translation, promptly the end face 202 towards raceway groove 210 expands, so as to realize this cigarette with all between want contact.A kind of like this configuration, wherein an end of sheet floats with respect to the centre slice of arranging opposed to each other, permission is inserted/is extracted and/or during sheet heating/cooling when cigarette separately, all heater chip 121 longitudinally mechanical displacement and/or expand with heat and contract with cold, reduce stress whereby.In second embodiment shown in Figure 14, one face 204, this face may be trapezoidal, be arranged in this raceway groove 210, cause along with heater chip 121 thermal expansion or displacement when cigarette 23 inserts when heating, an end 118B contact face 204 is also established a fulcrum, and sheet 121 inwardly is offset towards the cigarette 23 that is inserted, reduce the stress on this sheet whereby and increase this sheet and this cigarette between the thermo-contact wanted, i.e. thrust.So-called fulcrum is meant that this sheet 121 rotates freely at these face 204 places, but does not preferably shift.
So preferably a kind of overall structure of this heater assembly 100, this structure is used ceramic coating alternatively as discussion.This center hub 111 and all heater chip 121 are made by having the resistance wanted and the material of intensity.For example, have about 50 to about 500 Ω .cm, and be more preferably about 100 the materials of resistance to about 200 Ω .cm scopes is desirable, so that with one about 10 to about 50 joules, it better is about 10 to about 25 joules, and be more preferably about 20 joules pulse, sheet 120 by an activation in about 0.2 to about 2.0 seconds reaches about 200 ℃ to about 1000 ℃, and more about 400 ℃ to about 950 ℃, and be more preferably about 300 ℃ to about 850 ℃ temperature.This material should be able to withstand and about 1800 not produce all 121 inefficacy to about 10000 such pulses, significantly degenerate or undesirable sagging.
The material that is used for making all heater chip 121 is preferably hanked and is guaranteed to reuse reliably at least 1800 on/off circulations and do not lose efficacy.Heater fixture 39 preferably can decompose individually from the igniter 25 that comprises power supply 37 and circuit, and it is preferably in 3600 circulations or more dismountings afterwards.Heater material and other hardwares are also selected so that guarantee their not oxidations or react in addition with this cigarette 23 under any temperature that may run into according to their oxidative resistance and general inertia.Want, all heater chip 121 and other hardwares are encapsulated in for example suitable ceramic material of inertia Heat Conduction Material, so that further avoid oxidation and reaction.
Yet, being more preferably, all heater chip 121 and other hardwares are made by at high temperature showing the heat-resisting alloy that has high mechanical properties and anti-surface oxidation, corrosion and degeneration concurrently.Preferably, all heater chip 121 are by making at the material that shows very high intensity and surperficial stability under 80% temperature of about its fusing point.This class alloy comprises those persons that is commonly referred to the superalloy, and generally based on nickel, iron and cobalt.For example mainly be that the alloy of aluminium and yttrium is arranged is suitable for iron or nickel strap.Preferably, the alloy of heater chip 121 contains lead, so that for example by providing oxidative resistance further to improve the performance of heating element.
More desirable material comprises the lead thing of iron and nickel and commonly assigned, the co-pending u.s. patent application serial number 08/365 that preferably proposed on December 29th, 1994,952, especially the sequence number that " can be used as the iron aluminide alloys that stratie uses " with this paper being entitled as of proposing simultaneously for _ _ _ _ _ _ _ alloy that disclosed in (Attorney Docket PM 1769), these files are contained in this as a whole by reference.
Some kinds of elements can be used as impurity (additive) and are used for this Ni
3The Al alloy.B and Si are the major impurities of adding this alloy that is used for heater layer 122.B it is believed that and improves grain-boundary strength and work as this Ni
3Al is rich nickel, is the most effective during Al≤24at% (atomic percentage) for example.Si does not add this Ni in a large number
3The Al alloy will form the silicide of nickel and can cause SiOx when oxidation because surpass the sila matter of maximum 3 weight %.Mo impurity improves intensity under low temperature and high temperature.Zirconium helps to improve resistance to oxidation thing spalling during thermal cycle.In addition, can add Hf to improve elevated temperature strength.Desirable Ni as substrate 300 and resistance heater 122
3The Al alloy is at New York Van NestrandReinhold, " the metallurgical and intermetallic mixtures processing of intermetallic " that people such as Stolott compile, V.Sikka, " processing of intermetallic aluminide ", 1994, be named as IC-50 in the table 4 and reported and contain about 77.92%Ni, 24.73%Al; 0.34%Zr and 0.01%B.Various elements can be added in the iron aluminide.Possible impurity comprises Nb, Cu, Ta, Zr, Ti, Mn, Si, Mo and Ni.As the commonly assigned parent patent application serial 08/380,718 and the U.S. Patent No. 5,388 that propose in January 30 nineteen ninety-five, described in 594, heater material can be Haynes
214 alloy (Haynes
No. the 214th, alloy can contain 16.0% chromium, 3.0% iron from what the Haynes international corporation of state of Indiana section Como buied, 4.5% aluminium, the nickel-base alloy of the yttrium of trace and all the other (about 75%)), Inconel 702 alloys, the MCrAlY alloy, FeCrAlY, Nichrome
Board alloy (54-80% nickel, 10-20% chromium, 7-27% iron, 0-11% copper, 0-5% manganese, 0.3-4.6% silicon, and 1% molybdenum and 0.25% titanium sometimes; NichromeI it is said and comprises 60% nickel, 25% iron, 11% chromium, and 2% manganese; Nichrome II it is said and comprises 75% nickel, 22% iron, 11% chromium, and 2% manganese; And Nichrome III it is said it is a kind of heat-resisting alloy that comprises 85% nickel and 15% chromium), the material that perhaps has similar performance.
As shown in Figure 12, all heater chip 121 is arranged to extend symmetrically from center hub 111.Otherwise, adopt and arrange asymmetricly.For example, this group, for example 6 or 8 heater chip 121 can be subdivided into for example two the same number of for example groups of 3 or 4 heater chip.All heater chip in every group separate by gap 131 as mentioned above.Each group separates by the gap 135 of broad, as among Figure 19 to launch shown in the flat state.At interval 135 are determined like this, promptly are delivered to the conduction heat of the part of cigarette 23 this gap 135 below from the abutment flange 121 of the group of adjacency and are reduced to minimum with radiant heat particularly.Therefore, gap 135 provides heating and the firm part of a broad of cigarette, this part is more eager to excel in whatever one does than the not heating part of this cigarette below narrower gap 131, the column intensity that improves this cigarette 23 whereby is so that in all part smoking and heating successively, and weaken, help the taking-up of this cigarette afterwards.Want, this logic can activate more than one heater simultaneously in symmetry or asymmetric arrangement.
Have two heater leg 116A separating by gap 125 and the present invention of 116B and when comparing, causing significant improvement aspect the amount of smoke that is produced with the amount that produces by solid heating element.Solid heater is realized the good heat transmission with cigarette; Yet, a large amount of transfers that smog enters suction airstream are subjected to this solid construction and hinder and be positioned at the injury that the air the best within this cigarette outside the cigarette enters, if especially the casing of this cigarette smoking system to be provided with some perforation all the more so to link up outside this casing the air to this cigarette outer surface.Have the volume identical but have of bigger parameter according to heater of the present invention with solid heater, for example owing to gap 125 is that air inlet causes more opportunity, therefore cause raising to the unit energy of this sheet 121 the fragrance amount of sending.As discussed, gap 125 should determine that size is paired in given sheet physical dimension and provides the radiation of the best overlapping.Owing to produce bigger amount of smoke, so when producing the same fragrance amount of wanting, required all tablet qualities can reduce, cause a lighter device and in order to heat the minimizing of all 121 and the cigarette institute energy requirement that inserted fully, this further alleviates the weight of this device, because this power supply, for example all batteries can be less.As non-limiting example, gap 125 can be about 0.020 inch, ± about 0.005 inch wide; Sheet leg 116A and 116B can be about 0.0125 inch to about 0.017 inch, ± about 0.005 inch wide and about 0.55 inch, ± about 0.005 inch long; And about 0.008 inch to about 0.010 inch thick, ± about 0.005 inch; And the length from center hub 110 edges to linkage section 118 front ends can be about 1.062 inches, ± about 0.0625 inch.
Have been found that one with respect to the cigarette that is inserted mainly be laterally or air-flow radially mainly be that air-flow causes the amount of more wanting of being fuming longitudinally than one.All gaps 125,127 and 131 provide the path for being sucked the contacted air of the cigarette that enters and inserted.Provide additional air duct so that optimize crossflow by all section perforation to all heater chip.
Another embodiment of sheet geometry is shown in Figure 16, wherein the first leg 116A and the second leg 116B the two be the shape of crawling.The shape of crawling of all leg 116A and 116B is parallel, cause all legs be separate equably and also gap 125 shape of also crawling.A kind of like this shape of crawling has improved the sheet parameter, enters thereby increased smog.This one crawls shape at as described EP-A-0, more fully describes in commonly assigned patent application serial number 08/380,718 that proposes in 615,411 and in January 30 nineteen ninety-five and the U.S. Patent No. 5,388,594.
Now with reference to Figure 18 and Figure 19 the first best manufacture method is described.The manufacturing step that this paper determines can carry out so that realize manufacturing speed material saving etc. by any order of wanting.
A kind of suitable material have for example about 2 to about 20mil, for example approximately the sheet material or the band of the thickness of 10mil are shaped to define one group of sheet 121, this group sheet is through separately the first fragment 116A, the definite first end section of saying through separately 115, by a kind of arrangement of comb shape, vertically extend substantially from a straight substantially section 111A.All 121 parallel to each other substantially with gap 131, and this gap 131 is between the opposed edge of the first fragment 116B of the second fragment 116B of a sheet and an abutment flange.As discuss, all 121 or arrange symmetrically with the gap 131 that equates between them as shown in Figure 18, perhaps arrange as shown in Figure 19 asymmetricly, for example arrange with a bigger distance 133 between the gap 131 that equates between the abutment flange 121 that defines 121A of sheet group and 121B and two groups with width X.Notice that flat segments 111A has two to have and be at least half the end of length of X length so that form second distance 133 when rolling.These ends should be longer than X, so that be used for connecting overlapping is provided.As non-limiting example, can be about 0.040 inch ± 0.005 inch wide in any one embodiment intermediate gap 131, and can be about 0.125 inch ± 0.005 inch wide in this asymmetric embodiment intermediate gap 133.
All is disposed as discuss the front, so that form linkage section 118 and all leg 116A and 116B.
This one does into the shaping of described configuration to sheet material or band, realizes by the technology of any routine, such as stamping-out or for example cut with a CO2 or YAG laser.If adopt the band mode, then the number of the heater chip that is formed by this band can dispose needed number above single cylindrical heater.Cutting this then as required directly is with so that form the section 111A that has the heater chip 121 of extending from its of wanting number.If adopt, the stairstepping of all section 122A, 122B and 122C is shaped through punching press.
If adopt, then by the profile of shelter stamping-out and for example this coating heat be splashed to part 111A, 115,112 or whole or its any part on be coated with the figure that ceramic coating 300 is wanted with formation, as discussed above.Otherwise this ceramic coating is coated with after rolling step with this program, perhaps, wants, and is coated with before all shaping.As everybody knows, suitable the covering of coating before each step that heats with ceramic deposit so that define the zone of coating.
This section 111A is rolled to form the circular central sheet then.This section 111A can roll along any direction.Preferably, all positive contact 122C that section 111A is rolled into end segments 122 places on the outer surface of formed cylindrical heater, promptly with the opposed side of cigarette on so that simplify and being connected and avoiding damage during cigarette inserts and takes out of all stitch 104B.The section that is rolled can roll into than the littler diameter of its final diameter of wanting and be inserted into this fixture.The section expansion that is rolled then and by being electrically connected further maintenance shape.Otherwise the section that is rolled for example connects with tack welding or any solder technology of laser weld and so on connects to form hub 111.
Preferably, on each sheet 121, force a skew, cause when forming this heater assembly all leg 116A with 116B and be connected edge 118A and will apply a thrust, as shown in Figure 13 the cigarette that is inserted.This skew preferably occurred before rolling, but can realize after rolling.Thereby this skew this heater chip of increase and the thermo-contact of being inserted between the cigarette improve heat transference efficiency.
Also improve heat transference efficiency by optimizing being in of all leg 116A and 116B with the surface area amount of following cigarette in a kind of effective hot relation.Seen at Figure 17 A, the downside 117 of all leg 116A and 116B (leg 116A as an example draws) is planes, laterally is smooth along the sheet leg in the embodiment that is discussed promptly.In order to improve heat transfer relation, this downside 117 is shaped to various nonplanar geometries, for example be drawn in wedge angle or curve among Figure 17 B and Figure 17 C respectively, so that the surface area of the leg that is heated relatively this cigarette increase to maximum and do not increase the volume of this heater leg with wanting, thereby reduction current density and the resistance heated that obtains with wanting.The downside 117 of institute's moulding does not preferably puncture any part of this cigarette 23 to avoid weakening and may tear this cigarette during inserting, adjust or taking out.On the contrary, the contact of the mid point of this downside 117 or summit or closely hot joining be bordering on cigarette 23, and the remainder of downside is in a kind of radiant heat relation with cigarette 23.
Preferably, this downside shape leans against all leg 116A and the 116B that do not roll all 121 of state punching press and realizes.This punching press can be carried out with the same time of punching press of realizing bias discussed above.This punching press of shaping downside also improves the intensity of all leg 116A and 116B, avoids undesired short circuit and distortion whereby.
Second kind of manufacture method will be described now.A kind of tubing of suitable material is provided.Any technology with laser cutting and so on forms all 121 then.Otherwise all forms with FMT, and one of them inner core inserts this tubing to form the sheet profile of being discussed, then with another forging die internally or outside this profile that cuts.Want, as the tubing of cutting profile is provided with ceramic coating 300 discussing.
The present invention also brings out the potential damage of stress to heat and reduces to minimum.Because all heater chip 121 and centre slice 111 are whole, so avoided the stress that causes that interconnects by the separating part of heating element.
Various embodiment of the present invention all is designed to can send in response to the smoker fragrance tobacco of effective quantity under the service condition of standard.Exactly, think at present to a smoker in 8 mouthfuls of cigarettes desirable be send 5 and 13mg between, preferably 7 and 10mg between smog, as every mouthful of cigarette of 35ml suction arranged 2 seconds duration.Have been found that in order to realize this amount of being fuming when in a kind of heat transfer relation that is in this cigarette 23, all heating elements 121 should be able to transmit temperature as discussed above.In addition, all heater chip 121 preferably consume the energy of being discussed.Lower energy requirement is had by heater chip 121, all heater chip in these cigarette 23 bendings of mediad to improve heat transfer relation.
Certainly, heater resistance also is subjected to the domination of specific power supply 37, and this power supply is used to provide necessary electric energy to heat all heater chip 121.For example, above heating element resistance correspondence some embodiment, and wherein electric power is to be supplied with by 4 nickel-cadmium cell groups of series connection, and this battery pack has about 4.8 to 5.8 volts total no-load supply voltage.As an alternative, if use 6 or 8 such series connected battery, then all heater chip 121 should preferably have resistance between about 3 Ω and about 5 Ω or the resistance between about 5 Ω and about 7 Ω respectively.
An alternative embodiment of the invention 450 is shown in Figure 20 and Figure 21, and this embodiment comprises one group of heating element heater 451.Each heating element heater 451 is elongated U font, respectively has two ends 452,453 of its leg separately to be connected in the sidewall of lumen pore 430 at end wall 443 places of adjacency lumen pore 430.Each end 452 separately individually is connected in control circuit, finally is connected in electric energy, so that indivedual activation of all heating element heaters 451, all ends 453 common grounds simultaneously.Be not electrically connected in abutting connection with all ends 454 that the mouth of lumen pore 430 is held simultaneously, so need not contact the sidewall of lumen pore 430, they are still to the sidewalls flex of lumen pore 430, as Figure 20 and Figure 21 as shown in the two, so that be that the cigarette that is inserted provides an introducing portion for disposable part as mentioned above.Be noted that in Figure 21, go up most and under the U-shaped front end 451 that is drawn as through them of element 451 dissect.
In another embodiment 470 shown in Figure 22 and Figure 23, all heating element heaters 471 are farther from the wall of lumen pore 430, and respectively are provided with more sharp-pointed V-arrangement front end 472, and are provided with cascade fold 473 to increase their rigidity.So, in fact all heating element heaters 471 puncture and stretch into disposable part so that the close thermo-contact of wanting to be provided.Above-mentioned open-cell foam structure is suitable for such an embodiment particularly well.In this embodiment, because all heating element heaters 471 are farther from the sidewall of lumen pore 430,, end 452,453 is connected in its end wall 443 so being not attached to the sidewall of lumen pore 430.Preferably, the connection of 452, the 453 pairs of end walls 443 in end through some neither the also nonconducting separator 480 of heat conduction carry out.So, as in U.S. Patent No. 5,249, in 586 more completely as described in, a kind of wiping action wiping and is crossed all ends 452,453 and arrive residue on the separator 480, residue is not heated once more there.Some perforation 412 are located in the wall so that make air outside can be inhaled part 420, as in U.S. Patent No. 5,249, in 586 more completely as described in, this patent comprises as a whole by reference.
Many modifications, replacement and improvement may be the spirit and scope of the present invention conspicuous and that do not break away from described in this paper and following claims and define for the professional and technical personnel.For example, in a kind of modification, eliminate the crimping step and can before cooling step, carry out top part with reference to the described process of Fig. 5 B.
Claims (81)
1. a cigarette (23), this cigarette comprises a tobacco rods, described tobacco rods (60) comprises a tubular tobacco net (66) and a tobacco plug (80) that is positioned within the described tubular tobacco net, described tobacco rods has a free end (78) and an opposite end (72), described tubular tobacco net comprises the tobacco flavor material (70) that a spacer screen (68) and one deck are supported by described spacer screen, described spacer screen is suitable for transmitting heat from an electric heating element heater (37) to described tobacco flavor material, described tobacco rods (60) is being suitable on a position between described free end (80) and the described opposite end (72) alongside described tobacco rods (60) and is accepting an electric heating element heater (37) effectively, described tobacco plug (80) is positioned in abutting connection with described free end, thereby described tobacco plug is left described opposite end and define a space of not filling up (91) between described tobacco plug and described opposite end, wherein alongside the described position of described tobacco rods be such, the part of the part in overlapping at least described underfill space, promptly described position (91) and overlapping at least described tobacco plug (80).
2. according to the cigarette described in the claim 1, what wherein said tobacco rods comprised a described opposite end of adjacency freely flows filter tip (74), described flow freely that filter tip leaves described tobacco plug (80) thus define the described space (91) of not filling up between filter tip and the described tobacco plug described freely stream.
3. according to the cigarette described in claim 1 or 2, wherein said tubular element (74) is a filter tip.
4. according to the cigarette described in the claim 3, wherein said tubular element (74) is made of a kind of plasticising loose hemp fiber material.
5. according to the cigarette described in the claim 4, the wherein said filter tip (74) that freely flows is made of a kind of moulding material.
6. according to the cigarette described in claim 1 or 2, this cigarette also comprises the filter-tip (62) in abutting connection with described opposite end.
7. according to the cigarette described in the claim 6, wherein said cigarette holder (62) comprises that second of a described opposite end of adjacency freely flows filter tip (102), and described cigarette also comprises and freely flows the cigarette mouthpiece paper (64) that filter tip (102) is connected in described opposite end to described second.
8. according to the cigarette described in the claim 7, wherein said cigarette holder comprises that also an adjacency described second freely flows the interface filtering bolt (104) of filter tip (102).
9. the cigarette described in according to Claim 8, wherein said tobacco rods (60) described flows freely that filter tip (74) comprises described first passage (75) and described second freely the flowing filter tip (102) and comprise a second channel of described cigarette holder, described first and second passages are linked up the described space (91) of not filling up of described tobacco rods with described interface filtering bolt (104), described second channel has second internal diameter bigger than first internal diameter of described first passage (75).
10. the cigarette described in according to Claim 8, wherein said tobacco rods also comprises one described free-ended refluence filter tip (200 ").
11. the cigarette according to Claim 8, wherein said tobacco plug (80b) comprises the first (320b) of a described free end of adjacency (78b), this first have than described tobacco plug away from the higher density of described free-ended second portion (310b).
12. according to the cigarette described in the claim 1, wherein said spacer screen comprises the combination of a kind of baccy fiber and cellulose fibre, described baccy fiber and described cellulose fibre are with the combination of the ratio in about 2: 1 to 4: 1 scope, and described spacer screen has about 35 to 45g/m
2Scope in basis weight;
Described tobacco material has the basis weight that doubles described spacer screen at least, described tobacco expects to comprise with the ratio in about 3: 1 to 9: 1 scope the solid tobacco thing of thin offal and extraction, and also about 5% to 20% the content with described material weight comprises a kind of wetting agent.
13. according to the cigarette described in the claim 12, wherein said tobacco material has about 3 times to 4 times basis weights to described spacer screen.
14. according to the cigarette described in the claim 13, wherein said tobacco material also comprises pectin with the highest about 2% the content of described tobacco-containing material weight.
15. according to the cigarette described in the claim 14, wherein said spacer screen comprises about 28g/m
2Baccy fiber and about 12g/m
2Wood pulp or flax pulp, the perhaps cellulose fibre of offal slurry.
16. according to the cigarette described in the claim 15, wherein said tobacco material package contains about by weight 66 to 71% tobacco particles, about by weight 16 to the 20% solid tobacco things that extract, about by weight 10 to 14% glycerine and about 1-2% pectin.
17. cigarette according to claim 1, wherein:
Described spacer screen comprise a kind of with about 20 to 30g/m
2The composition basis weight baccy fiber and with about 2-9g/m
2The carbon fiber of composition basis weight, and with about 1g/m
2The combination of pectin of composition basis weight;
Described tobacco material has about 3 times to 4 times basis weights to described spacer screen, described tobacco expects to comprise with the ratio in about 3: 1 to 9: 1 scope the solid tobacco thing of thin offal and extraction, and also about 5% to 20% the content with described tobacco-containing material weight comprises a kind of wetting agent.
18. according to the tobacco net described in the claim 17, wherein said baccy fiber is about 24 to 28g/m
2The composition basis weight, carbon fiber is about 2 to 4g/m
2The composition basis weight and pectin is 2.5 to 1.5g/m
2The composition basis weight.
A 19. cigarette (23), this cigarette comprises a tobacco rods (60) that has refluence resistance free end (78) and opposite end (72), described tobacco rods comprises a tubular tobacco net (66) that one deck tobacco material (78) is arranged, a flow resistance (74) that works at the described opposite end of described tubular net and be positioned in abutting connection with described free end effectively and leave the tobacco (78 of described flow resistance, 80), thereby comprising, this tobacco partly fills up the filling pipe tobacco that described tobacco rods defines a tobacco rods part of filling up and a tobacco rods part of not filling up, the described part of not filling up is positioned in abutting connection with described flow resistance, described tubular net is arranged to by described tubular net the heat of being received is delivered to described tobacco, described tobacco rods (60) is disposed such, promptly use apply heat along a zone of described tobacco net described cigarette had a suck of cigarette during, at least a portion tobacco is caused the release tobacco smoke, and this smog is aspirated through described flow resistance.
20. according to the cigarette described in the claim 19, wherein said flow resistance (74) is defined by a tubular element.
21. according to the cigarette described in the claim 20, wherein said tubular element comprises that one first is freely flowed filter tip (74), described first freely flows filter tip defines a first passage by it (75), described cigarette also comprises cigarette holder (62), described cigarette holder comprises that is positioned at the second tubular filter tip (102) that freely flows that freely flows filter tip in abutting connection with described first of described tobacco rods, the described second tubular filter tip that freely flows defines a second channel by it, described first freely to flow the described first passage of filter tip narrower than the described part of not filling up of described tobacco rods, and narrower than the described second described second channel that freely flows in the filter tip (102).
22. according to the cigarette described in the claim 21, wherein said filling pipe tobacco forms a refluence resistance bolt.
23. according to the cigarette described in the claim 22, the described part of wherein said filling pipe tobacco (80) be positioned at described free end (78) and have than described filling pipe tobacco away from the bigger density of described free-ended remainder.
24. according to the cigarette described in the claim 23, wherein said cigarette holder (62) comprises that also an adjacency described second freely flows the interface filter tip (104) of filter tip (102).
25. according to the cigarette described in the claim 24, wherein said tubular net comprises a cigarette overwrap (71) around described tobacco rods, described cigarette holder is connected in described tobacco rods (60) by a cigarette mouthpiece paper (64).
26. according to each described cigarette among the claim 19-25, wherein said tobacco or tobacco plug (80) comprise a kind of filling pipe tobacco.
27. according to the cigarette described in the claim 26, wherein said tobacco or tobacco plug (80) comprise a kind of admixture of filling pipe tobacco, described admixture comprises in flue-cured tobacco, burley and the east tobacco at least two kinds combination.
28. according to the cigarette described in the claim 26, wherein said tobacco plug comprises the bolt wrapping paper (84) that one deck is wrapping described filling pipe tobacco (80).
29. according to the cigarette described in the claim 26, wherein said tobacco (70) is arranged along the inner surface of described tubular tobacco net (66).
30. according to the cigarette described in the claim 29, wherein said tobacco rods comprises that one deck is wrapping the overwrap (71) of the outer surface of described tubular tobacco rods or bar part.
31. electric cigarette smoking system that comprises cigarette and be suitable for the igniter of cooperating, described cigarette comprises the pipe of a tobacco net, this pipe partly fills up with filling pipe tobacco, thereby define a tobacco rods part of filling up and a tobacco rods part (91) of not filling up, described cigarette (23) and described igniter (25) are arranged each other like this, promptly when this cigarette is arranged in operating position of described igniter, at least one in partly of the tobacco rods that a hot plate element of this igniter is overlapped in this tobacco rods that is full of part and underfill at least in part, the wherein said tobacco rods that is full of partly comprises a tobacco plug, and when this cigarette is arranged in the described operating position of this igniter, the overlapping at least described part in space and the part of overlapping at least described tobacco plug of not filling up of described hot plate.
32. according to the cigarette smoking system described in the claim 31, wherein said cigarette has a free end, described tobacco plug is positioned in abutting connection with described free end, described cigarette comprises a tubular element that leaves described tobacco plug, thereby defines described tobacco rods part of not filling up between filter tip and the described tobacco plug described freely stream.
33. according to the cigarette smoking system described in claim 31 or 32, wherein said tubular element (74) is a filter tip.
34. according to the cigarette smoking system described in the claim 33, wherein said tubular element (74) is made of a kind of plasticising loose hemp fiber material.
35. according to the cigarette smoking system described in the claim 33, the wherein said filter tip (74) that freely flows is made of a kind of moulding material.
36. according to the cigarette smoking system described in claim 31 or 32, this cigarette also comprises the filter-tip (62) in abutting connection with described opposite end.
37. according to the cigarette smoking system described in the claim 36, wherein said cigarette holder (62) comprises that second of a described opposite end of adjacency freely flows filter tip (102), and described cigarette also comprises and freely flows the cigarette mouthpiece paper (64) that filter tip (102) is connected in described opposite end to described second.
38. according to the cigarette smoking system described in the claim 37, wherein said cigarette holder comprises that also an adjacency described second freely flows the interface filtering bolt (104) of filter tip (102).
39. according to the cigarette smoking system described in the claim 38, wherein said tobacco rods (60) described flows freely that filter tip (74) comprises described first passage (75) and described second freely the flowing filter tip (102) and comprise a second channel of described cigarette holder, described first and second passages are linked up the described space (91) of not filling up of described tobacco rods with described interface filtering bolt (104), described second channel has second internal diameter bigger than first internal diameter of described first passage (75).
40. according to the cigarette smoking system described in the claim 38, wherein said tobacco rods also comprises one described free-ended refluence filter tip (200 ").
41. according to the cigarette smoking system described in the claim 38, wherein said tobacco plug (80b) comprises the first (320b) of a described free end of adjacency (78b), this first have than described tobacco plug away from the higher density of described free-ended second portion (310b).
42. cigarette smoking system according to claim 31, wherein said igniter comprises a plurality of electric heaters, and each electric heater comprises:
One group of resistance heater sheet (121), this group heater chip define one admit the socket of a cigarette that is inserted and alongside the cigarette that inserted extend, each sheet comprises a primary heater sheet leg (116A) that has first end and the second end, a secondary heater sheet leg (116B) that has first end and the second end (122), and the linkage section (118) of this first end of this second end of a described primary heater sheet leg of connection and described secondary heater sheet leg;
Wherein the described first and second heater chip legs of each heater chip separate by a gap (125) separately; And
All first ends of wherein said primary heater sheet leg are suitable for contacting with electric energy is electric, wherein resistance heated path separately is formed and comprises described primary heater sheet leg, described connection edge section and described secondary heater sheet leg so that heat each described resistance heater sheet respectively, and the latter itself heats the cigarette that is inserted again.
43. according to the cigarette smoking system described in the claim 42, the second end (122) of wherein said all secondary heater sheet legs (116B) is grounded.
44. according to the cigarette smoking system described in the claim 42, all the second ends of wherein said all secondary heater sheet legs are by public connection.
45. according to the cigarette smoking system described in the claim 42, this gap (125) that wherein separates the described first and second heater legs is sized to and allows air-flow to enter the cigarette that is heated when being aspirated by the smoker.
46. according to the cigarette smoking system described in the claim 42, wherein this heater also comprises a supporting hub (111), all first ends of each described primary heater sheet leg (116A) all extend from described supporting hub;
Wherein said supporting hub is suitable for contacting so that form the common wire of all first ends of described all primary heater sheet legs with electric energy is electric.
47. according to the cigarette smoking system described in the claim 46, all the second ends of wherein said all secondary heater sheet legs (116B) are suitable for contacting with electric energy is electric respectively, wherein resistive heater circuit separately is formed and comprises described primary heater sheet leg, described connection edge section and described secondary heater sheet leg so that heat each described resistance heater sheet (121) respectively, and the latter itself heats the cigarette that is inserted again.
48. according to the cigarette smoking system described in the claim 46, all the second ends (122) of wherein said all secondary heater sheet legs (116B) extend and upward isolation electric with it to described supporting hub (111).
49. according to the cigarette smoking system described in the claim 46, all the second ends (122) of wherein said all secondary heater sheet legs (116B) separate by a gap and described hub.
50. according to the cigarette smoking system described in the claim 46, wherein this heater also comprises a kind of electrical insulators of at least one side in all the second ends of coating described hub and described all secondary heater sheet legs.
51. according to the cigarette smoking system described in the claim 46, this heater also comprises a kind of electrical insulators of at least one side in all first ends of all the second ends of coating described all secondary heater sheet legs and described all primary heater sheet legs.
52. according to the cigarette smoking system described in the claim 46, wherein this heater also comprises around described supporting hub (111), and all the second ends (122) of described all secondary heater sheet legs (116B) and all first ends of described all primary heater sheet legs (116B) form a kind of a kind of electrical insulators (300) of ceramic hub supporting structure.
53. according to the cigarette smoking system described in the claim 46, wherein said supporting hub and described all are whole.
54. according to the cigarette smoking system described in the claim 42, wherein said linkage section (118) also comprises compensate for heat expansion when a unsteady end (118B) is heated with this heating element of box lunch.
55. according to the cigarette smoking system described in the claim 54, wherein this heater also comprises a kind of supporting structure (83), and this structure is fixedly located in this cigarette smoking system and defines the raceway groove (210) of all unsteady end (118B) of some described all linkage sections that are used for admitting described all (121).
56. according to the cigarette smoking system described in the claim 55, wherein said all raceway grooves (210) are arranged to allow the translation bloated shrinkage hot in nature of described all heater chip.
57. according to the cigarette smoking system described in the claim 55, wherein this heater also comprises a fulcrum (204) that is arranged in each described raceway groove, described fulcrum is arranged like this, the corresponding floating end (118B) that is described linkage section rotates around described fulcrum, so that when the corresponding heater chip of heating the described first and second heater chip legs (116A, B) are offset at the cigarette that mediad inserted.
58. according to the cigarette smoking system described in the claim 42, in wherein said primary heater sheet leg (116A) and the described secondary heater sheet leg (116B) part of at least one covered by pottery (300) in case reinforce and electrical isolation described primary heater sheet leg and described secondary heater sheet leg at least one.
59. according to the cigarette smoking system described in the claim 58, the part of a described pottery of adjacency of wherein said secondary heater sheet leg (116B) is suitable for contacting with this electric energy is electric.
60. according to the cigarette smoking system described in the claim 42, wherein said all (121) are arranged to the cigarette that admittance is slidably inserted.
61. according to the cigarette smoking system described in the claim 42, this second end of wherein said secondary heater sheet leg is a kind of stairstepping, described stairstepping comprises that one is suitable for and the electric end segments that contacts of this electric energy (122C).
62. according to the cigarette smoking system described in the claim 42, the described first and second heater chip legs (116A, B) of one of them heater chip (121) separately are substantially parallel.
63. according to the cigarette smoking system described in the claim 42, there is a bending between about 160 ° and 200 ° at wherein said connection edge.
64. according to the cigarette smoking system described in the claim 42, the downside of facing the cigarette that is inserted of at least one is an on-plane surface along the horizontal of described heater chip leg basically in the wherein said first and second heater chip legs (116A, B).
65. according to the cigarette smoking system described in the claim 64, wherein said downside is crooked.
66. according to the cigarette smoking system described in the claim 64, wherein said downside is a wedge angle.
67. according to the cigarette smoking system described in the claim 42, wherein said this group resistance heater sheet (121) is grouped arrangement, wherein the gap between all group (133) are sized to the not heating part that the cigarette that is inserted is provided, thereby the intensity of providing is so that the taking-up of this cigarette after smoking.
68. according to the cigarette smoking system described in the claim 42, at least one shape of crawling in the wherein said first and second heater chip legs (116A, B).
69. according to the cigarette smoking system described in the claim 68, wherein said first and second leg boths be crawl shape and also be parallel to each other, cause gap between all legs shape of crawling.
70. according to the cigarette smoking system described in the claim 42, wherein at least one end of at least one sheet (121,122) are wideer than the live part of an adjacency of described at least one leg, and this end of wherein said leg has than lower current density of this live part of described leg and less Ohmic heating.
71. according to the cigarette smoking system described in the claim 42, wherein said linkage section (119) is perforated.
72. according to the cigarette smoking system described in the claim 42, the wherein said first and second heater chip legs (116A, B) are offset at the cigarette that mediad inserted.
73. according to the cigarette smoking system described in the claim 42, wherein said first has about 100 resistance to about 200 μ Ω .cm with described secondary heater sheet leg (116A, B) with the described edge that is connected.
74. according to the cigarette smoking system described in the claim 42, wherein said first has about 50 resistance to about 500 μ Ω .cm with described secondary heater sheet leg (116A, B) with the described edge that is connected.
75. according to the cigarette smoking system described in the claim 42, wherein said first with described secondary heater sheet leg (116A, B) with described be connected the edge can with about 10 to about 50 joules pulse in about 0.2 to about 2.0 seconds, reach about 200 ℃ to about 1000 ℃ temperature.
76. according to the cigarette smoking system described in the claim 75, wherein said first can be pulsed onto these temperature with described second leg (116A, B) about 1800 with the described edge that is connected to about 10000 such pulses.
77. according to the cigarette smoking system described in the claim 42, this gap (125) that wherein separates the described first and second heater chip legs (116A, B) is sized to each the build-up radiation heat that is in the part below this gap to the cigarette that is inserted that makes from the described first and second heater chip legs of a supporting heater chip and increases to maximum.
78. according to the cigarette smoking system described in the claim 42, the wherein said first and second heater chip legs (116A, B) are made of a kind of resistance material of selecting from the category that iron aluminide and nickel aluminide are formed with the described edge section that is connected.
An electronic lighter comes the method for the amount of being fuming of the cigarette (23) of work 79. an improvement is used by oneself, described cigarette comprises a tubular net (66) that has free end (78) and opposite end (72), cigarette can said method comprising the steps of from described opposite end suction:
Do not filling up part in abutting connection with one of the position establishment of described opposite end and establishing the part that tobacco is filled up in abutting connection with described free-ended position along described tubular net along described tubular net; And
A hot plate element of described electronic lighter is overlapped at least in part on the described part of filling up of described tubular net, activates described hot plate element simultaneously, from described tobacco, discharge the smog composition so that cause.
80. according to the method described in the claim 79, wherein said overlapping step comprise described hot plate componentry overlap on the described part of not filling up of the described part of filling up of described tubular net and described tubular net, activate described hot plate element simultaneously.
81. according to the method described in the claim 79, this method also comprises makes the described tobacco component that discharges be positioned in abutting connection with the step of the structure of described opposite end by one.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/425,166 | 1995-04-20 | ||
| US08/426,165 | 1995-04-20 | ||
| US08/426,165 US5591368A (en) | 1991-03-11 | 1995-04-20 | Heater for use in an electrical smoking system |
| US08/425,166 US5692525A (en) | 1992-09-11 | 1995-04-20 | Cigarette for electrical smoking system |
| US08/425,837 US5499636A (en) | 1992-09-11 | 1995-04-20 | Cigarette for electrical smoking system |
| US08/425,837 | 1995-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1190335A CN1190335A (en) | 1998-08-12 |
| CN1113620C true CN1113620C (en) | 2003-07-09 |
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ID=27411456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96194107A Expired - Lifetime CN1113620C (en) | 1995-04-20 | 1996-04-19 | Cigerette and heater for use in electrical smoking system |
Country Status (30)
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| JP (1) | JP3996188B2 (en) |
| CN (1) | CN1113620C (en) |
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| CA (1) | CA2218595C (en) |
| DE (1) | DE69628745T2 (en) |
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| DO (1) | DOP1996005265A (en) |
| DZ (1) | DZ2022A1 (en) |
| EA (1) | EA000244B1 (en) |
| ES (1) | ES2202437T3 (en) |
| HR (1) | HRP960185A2 (en) |
| HU (1) | HU228654B1 (en) |
| MA (1) | MA23846A1 (en) |
| MX (1) | MX9708035A (en) |
| MY (1) | MY119710A (en) |
| NO (1) | NO317865B1 (en) |
| NZ (1) | NZ306882A (en) |
| OA (1) | OA10628A (en) |
| PL (2) | PL182861B1 (en) |
| PT (1) | PT822760E (en) |
| RO (1) | RO120750B1 (en) |
| SK (1) | SK284345B6 (en) |
| TR (1) | TR199701210T1 (en) |
| TW (1) | TW318780B (en) |
| UY (1) | UY24207A1 (en) |
| WO (1) | WO1996032854A2 (en) |
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| CN110353311A (en) * | 2011-12-30 | 2019-10-22 | 菲利普莫里斯生产公司 | Smoking article and method with front plug |
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