JP2001330538A - Sub-stream smoke collector and sub-stream smoke collecting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely collect sub-stream smoke from a cigarette under prescribed conditions. SOLUTION: A plurality (for example, 20) of automatic smoking devices 1 are juxtaposed above an under frame 10A and in an upper frame 10B. A smoking port 1a of each smoking device 1 is disposed to project from a fixed panel 20 over a step part 10a-1. Air cylinders 2 are disposed on a front upper part of the fixed panel 20, and a slider 21 and an elevating block 22 are mounted on a rods 2a. A smoke collecting hood 3 is mounted on hood holders 23 and 23 of the elevating block 22. The collecting hood 3 is moved up and down between an upper dead point and a lower dead point by driving the air cylinder 2. At the position of the lower dead point, a cigarette T is enclosed by the collecting hood 3. Sub-stream smoke from the lighted cigarette T is collected into a smoke trap 6 via the collecting hood 3, a filter part 4 and a communicating tube 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sidestream smoke collecting device and a sidestream smoke collecting method for collecting sidestream smoke for analyzing sidestream smoke of cigarettes.

[0002]

2. Description of the Related Art Conventionally, for cigarettes, it is necessary to measure the gas concentration of smoke components in the intake air during standard smoking, and the concentration analysis of the intake of cigarettes has been performed. The analysis uses an automatic smoker that simulates the typical smoke-taking behavior of a person smoking. The automatic smoking machine is provided with a smoking mouth to which a filter part (or end) of the cigarette is attached, ignites the cigarette attached to the smoking mouth, smokes intermittently from the smoking mouth, and smokes each time. Is collected in the collection bag. The intake at this time is the mainstream smoke of cigarettes. Then, the collected intake air is supplied from the collection bag to the non-dispersive infrared gas analyzer to measure the gas concentration of the gas component. In addition, this one smoking operation is referred to as “puff”.

[0003]

By using an automatic smoking machine as described above, the intake of cigarettes can be reliably collected from the smoking mouth, and the analysis of the intake can be automated. On the other hand, it is necessary to also analyze the component of the sidestream smoke, but since the sidestream smoke diffuses upward from the tip of the cigarette, for example, the sidestream smoke under predetermined measurement conditions such as a predetermined smoke absorption operation is removed. It is difficult to collect accurately.

An object of the present invention is to ensure that sidestream smoke of cigarettes can be collected under predetermined measurement conditions.

[0005]

According to the first aspect of the present invention, there is provided a sidestream smoke collecting device, which is disposed above and below a smoking mouth of the automatic smoking machine so as to be vertically movable. A smoke collecting hood with a longitudinal opening covering the periphery of the cigarette attached to the smoking mouth facing downward, an elevating device for raising and lowering the smoke collecting hood, and one end communicating with an upper portion of the smoke collecting hood. A communication pipe, an air collecting trap communicated with the other end of the communication pipe, and an air suction device that is connected to the air collecting trap and suctions the inside of the smoke collecting hood through the air collecting trap and the communication pipe; A control device for controlling the automatic smoking machine, the elevating device and the air intake device, wherein the control device controls the automatic smoking machine, the air suction device and the elevating device, and sucks the inside of the smoke collecting hood. The smoke collecting hood is lowered with the automatic smoking Cover the cigarette attached to the smoking opening of the cigarette, and drive the automatic smoking machine to collect the sidestream smoke generated when the cigarette is burned into the air collecting trap via the smoke collecting hood and the communication pipe. It is characterized by doing so.

According to a second aspect of the present invention, there is provided a sidestream smoke collecting apparatus having the configuration of the first aspect, wherein the opening of the smoke collecting hood is a longitudinal opening covering the periphery of the cigarette. Features.

According to a third aspect of the present invention, there is provided a sidestream smoke collecting apparatus having the structure of the first or second aspect, wherein a coarse stream in the sidestream smoke is provided between the smoke collecting hood and the air collecting trap. It is characterized by having a filter for removing tar.

According to a fourth aspect of the present invention, there is provided a sidestream smoke collecting apparatus having the structure of the first, second, or third aspect, wherein the automatic smoking machine, the smoke collecting hood, the communication pipe, and the collecting pipe. A plurality of sets of air traps and the suction device are provided, and the control device controls the automatic smoking machine, the lifting device, and the suction device of each set.

According to a fifth aspect of the present invention, there is provided a sidestream smoke collecting device having the structure of the first, second or third aspect, wherein the smoke collecting device is provided below a front portion of a smoking mouth of the automatic smoking machine. A horizontal air volume adjusting plate is provided movably disposed facing the opening of the hood, and adjusts the air volume sucked into the opening.

According to a sixth aspect of the present invention, there is provided a sidestream smoke collecting apparatus having the structure of the first, second, third, fourth, or fifth aspect. A mass flow controller for controlling the volume to be constant per unit time is provided.

According to a seventh aspect of the present invention, there is provided a sidestream smoke collecting apparatus having the structure of the first, second, third, fourth, fifth, or sixth aspect, wherein the automatic smoking machine is provided. A flammable thread hung near the smoking mouth of the cigarette mounted on the smoking mouth of the cigarette, and the yarn is closed or opened by the burning of the cigarette and the tension of the yarn changes. A switch device, wherein the control device detects the end of combustion of the cigarette by closing or opening the switch device.

According to a second aspect of the present invention, there is provided a sidestream smoke collecting method, wherein a cigarette mounted on a smoking mouth of an automatic smoking machine is covered with a smoke collecting hood, and the inside of the smoke collecting hood is sucked through an air collecting trap. In addition, the automatic smoking machine is driven to collect sidestream smoke generated when the cigarette is burned through the smoke collecting hood into an air collecting trap, and the cigarette attached to a smoking opening of the automatic smoking machine is collected. It is characterized in that the end of combustion of the tobacco to a predetermined position on the smoking port side is detected, and when the end of combustion is detected, the collection of the sidestream smoke is ended.

According to a ninth aspect of the present invention, there is provided a sidestream smoke collecting method according to the eighth aspect, wherein a flammable thread is wrapped around the smoking mouth of the cigarette, and the thread is attached to the cigarette. The end of combustion of the cigarette is detected by changing the tension of the yarn by burning with a pilot flame.

According to the second aspect of the present invention, the control device controls the automatic smoking machine, the suction device and the elevating device, and the smoke collecting hood is lowered to be attached to the smoking opening of the automatic smoking machine. The cigarette is stored in the opening of the smoke collecting hood and covered with the smoke collecting hood. The cigarette is ignited and sucked by an automatic smoking machine under predetermined measurement conditions. The inside of the smoke collecting hood is sucked, and the sidestream smoke generated from the cigarette is collected by the smoke collecting hood and collected in the air collecting trap. Therefore, the sidestream smoke of the cigarette can be collected under predetermined measurement conditions.

According to the second aspect of the present invention, the same effect as that of the first aspect is obtained, and the opening of the smoke collecting hood is a longitudinal opening covering the periphery of the cigarette. Therefore, the outside air sucked from the opening can be made into a stable upward flow, and the sidestream smoke of the cigarette is reliably collected at the upper part of the smoke collecting hood. Therefore, the sidestream smoke of the cigarette can be reliably collected under predetermined measurement conditions.

According to the third aspect of the present invention, the same effect as that of the first or second aspect can be obtained, and only the component from which the coarse tar in the sidestream smoke has been removed is collected. be able to. Also, crude tar can be analyzed.

According to the second aspect of the present invention, the same effect as that of the first, second, or third aspect can be obtained, and the sidestream smoke of a plurality of cigarettes is individually separated. It is possible to collect and perform the component analysis work of the sidestream smoke of a plurality of cigarettes.

According to the fifth aspect of the present invention, the same effect as that of the first, second, third or fourth aspect can be obtained, and the smoke is sucked into the opening of the smoke collecting hood. Since the amount of air to be blown can be adjusted by the air volume adjusting plate, the sidestream smoke can be more reliably collected.

According to the sixth aspect of the present invention, the same effect as that of the first, second, third, fourth, or fifth aspect can be obtained, and the smoke collecting hood can be used. Since the amount of air to be taken in is kept constant, it is possible to collect sidestream smoke while keeping the measurement conditions constant.

According to the second-stream smoke collecting device of the seventh aspect, the same operation and effect as those of the first, second, third, fourth, fifth, or sixth aspect can be obtained. The preset combustion end position of the cigarette can be automatically detected, thereby facilitating the end control of the sidestream smoke collection process.

According to the method of collecting sidestream smoke according to the eighth aspect, sidestream smoke corresponding to a fixed burning amount of cigarettes can be automatically collected, thereby facilitating the analysis operation.

According to the ninth aspect of the present invention, the same effect as that of the eighth aspect can be obtained, and the end of combustion is detected by a change in the tension of the yarn burning by the kind of cigarette. Thus, the end of combustion can be reliably detected.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged side view of a main part of a sidestream smoke trap according to an embodiment of the present invention, FIG. 2 is an enlarged front view of a main part of the sidestream smoke trap, FIG. Is a side view of the sidestream smoke trap, and FIG. 4 is a front view of the sidestream smoke trap. The base 10 of this device is composed of a lower frame 1A and an upper frame 10B having a depth smaller than the lower frame 10A.
An upper frame 10B is formed on the lower frame 10A. A vertical fixed panel 20 is provided on the front surface of the upper frame 10B.
Is attached, and a portion of the upper surface of the lower frame 10A in front of the fixed panel 20 is a step portion 10A-1.
In the upper frame 10B, a plurality (for example, 20) of automatic smoking machines 1 are provided in the left and right directions on the lower frame 10A and in the left-right direction of FIG.
0 protrudes above the step portion 10A-1. The automatic smoking machine 1 is similar to a conventional cigarette for analyzing the concentration of the intake of cigarettes. A predetermined sequence is performed on the cigarette T attached to the smoking mouth 1a by the operation of a syringe (not shown). Is used to perform a smoking operation.

At the upper part of the front surface of the fixed panel 20, an air cylinder 2 as an elevating means is located at a position corresponding to each smoking port 1a.
Are arranged vertically. A slider 21 is attached to the rod 2a of the air cylinder 2 in parallel with the rod 2a, and the slider 21 holds an elevating block 22 so as to be able to move up and down with respect to the slider 21. Further, hood holders 23, 23 having a substantially U-shaped horizontal cross section are attached to the upper and lower ends of the lifting block 22, and the smoke collecting hood 3 is attached to the hood holders 23, 23.

Then, by driving the air cylinder 2, the smoke collecting hood 3 moves up and down between a top dead center shown by a two-dot chain line and a bottom dead center shown by a solid line in FIG. The lifting block 22 can be moved up and down with respect to the slider 21 by approximately half the length of the lifting range of the smoke collecting hood 3. For example, when the smoke collecting hood 3 is located at the bottom dead center, The smoke hood 3 can be lifted by hand to a substantially intermediate position between the top dead center and the bottom dead center, and when released, the smoke collection hood 3 descends to the bottom dead center due to its own weight.

The smoke collecting hood 3 is a hollow member made of hard glass and has a vertical cylindrical portion 31 attached to the hood holder 23 and a hood portion 32 extending from a lower portion of the cylindrical portion 31. ing. The size of the hood portion 32 in the front-rear direction is gradually enlarged from the outer diameter of the cylindrical portion 31 to reach the lower end, and the size in the left-right direction is slightly enlarged than the outer diameter of the cylindrical portion 31 and then contracts. The width is slightly wider than the width of the cigarette T. Thereby, the hood portion 32
A longitudinal opening 33 is formed at the lower end of the. In the hood portion 32, a cutout portion 33a (FIG. 1) extending in the vertical direction from the opening portion 33 is formed in the portion on the smoking port 1a side. The upper end of the cylindrical portion 31 is narrowed down from the outer diameter of the cylindrical portion 31, and the filter portion 4 is communicated with the upper end.

A communication pipe 5 is connected to the filter section 4 on the side opposite to the smoke collecting hood 3, and the communication pipe 5 is connected to an air collecting trap 6. FIG. 5 is a cross-sectional view of the air collecting trap 6. In the air collecting trap 6, two-stage liquid trap bottles 62 and 63 and an activated carbon trap bottle 64 are arranged in a cooling layer 61.
The filter unit 4, the first liquid trap bottle 62, the second liquid trap bottle 63, and the activated carbon trap bottle 64 are connected in this order. And in the activated carbon trap bottle 64,
The mass flow controller 7 is connected as shown in FIG. A vacuum pump (not shown) is connected to the mass flow controller 7. Note that the mass flow controller 7 and a vacuum pump (not shown) constitute an intake device.

As shown in FIG. 1, on the step 10A-1 on the upper surface of the lower frame 10A, a parallel link 8a is rotatably supported in the front-rear direction.
A horizontal air volume adjusting plate 8 is attached to the tip of the.
The air volume adjusting plate 8 is disposed below the smoking port 1 a and the smoke collecting hood 3, faces the opening 33 of the smoke collecting hood 3 with the parallel link 8 a raised, and faces the smoke collecting hood 3. The opening 33 serves to adjust the amount of air to be sucked.

A combustion end detecting mechanism 9 is provided below each of the smoking ports 1a of the fixed panel 20. FIG. 6 is a side view (FIG. 6 (A)) and a front view (FIG. 6 (B)) of the combustion end detecting mechanism 9. A V-shape is provided at the upper end in the middle of the fixed shaft 91 protruding from the fixed panel 20. A thread holding arm 92 having a U-shaped notch 92a is attached.
2a is arranged at a position adjacent to the lower part of the cigarette T attached to the smoking opening 1a. As shown in FIG. 6A, a groove 92b is formed at the tip of the notch 92a of the thread holding arm 92.

The fixed shaft 91 is attached to the fixed shaft 91 by a mounting arm.
A contact switch 93 with the contact lever 93a facing downward is attached. Further, a fixed seat 94 and a sliding seat 95 which is opposed to the fixed seat 94 and urged toward the fixed seat 94 by a spring 95 are attached to the tip of the fixed shaft 91. By pulling with
A gap is formed between the fixed seat 94 and the fixed seat 94.

In the combustion end detecting mechanism 9, one end of the combustible yarn A is fixed between the fixed seat 94 and the sliding seat 95, as shown by a two-dot chain line in FIG. It is passed over the leading end of the notch 92a through the groove 92b of the thread holding arm 92, and further, the contact lever 93 of the contact switch 93
is pressed to be fixed to the fixed seat 94 and the sliding seat 95 of the adjacent combustion detection mechanism 9. The thread A is thus tensioned, and the cigarette T is mounted on the smoking opening 1a, and the cigarette T is placed on the thread A at the cutout portion 92a of the thread holding arm 92.

As a result, the cigarette T burns and the yarn A
Burns, the yarn A is cut, and the contact switch 9
The third contact lever 93a is opened, and the closing / opening of the contact switch 93 detects that the cigarette T has burned to the position of the thread A (that is, the end of combustion). The yarn A is continuously passed over, for example, a combustion completion detection mechanism 9 provided as shown in FIG. 2. In each combustion completion detection mechanism 9, a fixed seat 94 and a sliding seat 95 are provided. And a fixed seat 94 and a sliding seat 95 of the adjacent combustion termination mechanism 9.
Thus, the tension state is maintained independently, so that the combustion termination mechanism 9 can independently detect the termination of combustion.

As shown in FIG. 4, an operation panel 30 as a control section is disposed on the front surface of the lower frame 10A, and a lighter 40 for igniting the cigarette T is disposed near the operation panel 30. Further, an ignition miss switch 50 is provided corresponding to each smoking port 1a. The heating of the automatic smoking apparatus 1, the air cylinder 2, the mass flow controller 7, a vacuum pump (not shown) (not shown), and the lighter 50 is controlled by the control of the operation panel 30.

With the above structure, the operation of collecting the sidestream smoke and the component contained in the sidestream smoke is performed as follows. First, the air volume adjusting plate 8 is pulled out as shown by the two-dot chain line in FIG. Next, a cigarette T is attached to each smoking opening 1a, and the air volume adjusting plate 8 is lifted up as shown by the solid line in FIG. Then, the suction pump button on the operation panel 30 is pressed. As a result, the vacuum pump and the mass flow controller 7 operate, and the smoke collection hood 3 starts suction at a constant flow rate (for example, 3 liter / min). When the measurement start button is pressed, each air cylinder 2 is driven, and each smoke collection hood 3 is lowered to the bottom dead center.
When the writer button is pressed, the writer 50 is heated.

When the above preparations are completed, the measurement button is pressed. Thereby, for example, the smoking operation of the automatic smoking machine 1 is started in order from the left end, and the buzzer is sounded after a predetermined time. Therefore, the smoke collecting hood 3 is lifted by hand and the lighter 4 is lifted.
0 ignites the cigarette hand. Since the above-mentioned buzzer is sounded sequentially at a predetermined interval for each automatic smoking machine 1, the same ignition operation as described above is performed. If the cigarette T is not successfully ignited by this ignition operation, the ignition misswitch 50
By pressing, the suction operation and the measurement of the cigarette T with the ignition failure are terminated. In addition, as an operation example of the automatic smoking machine 1, one suction (one puff) every 60 seconds.
1 puff is 2 seconds, 1 puff is 35-100
Set from a variable range of milliliters.

Here, a personal computer (not shown) is connected to the operation panel 30, and the time elapsed since the buzzer sounded and the number of puffs are taken in for each automatic smoking machine 1, and the thread A is cut off and the contact switch 8 is turned off. Is closed / opened,
The operation of the automatic smoking machine 1 is stopped, and the air cylinder 2 is driven to raise the smoke collecting hood 3 to the top dead center.

During the above operation, the sidestream smoke collected by the smoke collecting hood 3 becomes a gas from which coarse tar has been removed while passing through the filter section 4, and is supplied to the air collecting trap 6 of FIG. Supplied. In the air collecting trap 6, the two-stage liquid trap bottles 62 and 63 and the activated carbon trap bottle 64 are cooled to, for example, 0 ° to 10 ° by the cooling layer 61, and collected by the liquid trap bottles 62 and 63. The components in the gas are collected in the solvent, and other odor components are removed by the activated carbon trap bottle 64 and discharged to the outside. In addition, the water in the two-stage liquid trap bottles 62 and 63 is collected, and the component analysis of the sidestream smoke is performed.

[0038]

According to the first aspect of the present invention, since the opening of the smoke collecting hood is a longitudinal opening covering the periphery of the cigarette, the outside air sucked from the opening is formed. Can be a stable upward flow, the sidestream smoke of the cigarette is reliably collected at the upper part of the smoke collecting hood, and the sidestream smoke of the cigarette can be reliably collected under predetermined measurement conditions. .

According to the second aspect of the present invention, the same effect as in the first aspect can be obtained, and the sidestream smoke of the cigarette can be reliably collected under predetermined measurement conditions. .

According to the sidestream smoke collecting device of the third aspect, the same effects as those of the first or second aspect can be obtained.
Only the components from which the coarse tar has been removed from the sidestream smoke can be collected, and the coarse tar can be analyzed.

According to the fourth aspect of the present invention, the same effect as that of the first, second or third aspect is obtained, and the sidestream smoke of a plurality of cigarettes is individually captured. It is possible to collectively perform a component analysis operation of the sidestream smoke of a plurality of cigarettes.

According to the fifth aspect of the present invention, the same effect as the first, second, third or fourth aspect can be obtained, and the smoke is sucked into the opening of the smoke collecting hood. Since the air volume can be adjusted with the air volume adjustment plate,
Further, it is possible to reliably collect the sidestream smoke.

According to the sixth aspect of the present invention, the same effect as the first, second, third, fourth or fifth aspect can be obtained, and the smoke is collected by the smoke collecting hood. Since the amount of generated air is kept constant, sidestream smoke can be collected while keeping the measurement conditions constant.

According to the sidestream smoke collecting device of the seventh aspect, the same effects as those of the first, second, third, fourth, fifth, or sixth aspect can be obtained, and the cigarette is also provided. The preset combustion end position of the tobacco can be automatically detected, and the end control of the sidestream smoke collection process is facilitated.

According to the method of collecting sidestream smoke according to the eighth aspect, sidestream smoke corresponding to a fixed amount of burning of cigarettes can be automatically collected, thereby facilitating analysis work.

According to the ninth aspect, the same effect as that of the eighth aspect can be obtained, and the end of combustion is detected by a change in the tension of the yarn burning by the kind of cigarette. The end of combustion can be reliably detected.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a main part of a sidestream smoke trap according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of the sidestream smoke collection device.

FIG. 3 is a side view of the sidestream smoke collection device.

FIG. 4 is a front view of the sidestream smoke collection device.

FIG. 5 is a sectional view of an air collecting trap in the sidestream smoke collecting device.

FIG. 6 is a side view and a front view of a combustion end detecting mechanism in the sidestream smoke trap.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic smoking machine 1a Smoking opening 2 Air cylinder 3 Smoke collection hood 5 Communication pipe 6 Air collection trap 7 Mass flow controller 8 Air flow control plate 9 Combustion end detection mechanism 30 Operation panel

Claims (9)

[Claims] 1. An automatic smoking machine, comprising: an automatic smoking machine disposed vertically above a front portion of a smoking mouth of the automatic smoking machine and having an opening facing downward to cover a cigarette attached to the smoking mouth. A smoke hood, an elevating device for raising and lowering the smoke collection hood, a communication pipe having one end communicating with an upper part of the smoke collection hood, an air collection trap communicated with the other end of the communication pipe, and the air collection trap A suction device that communicates with the air collection trap and the communication pipe to suck the inside of the smoke collection hood; and a control device that controls the automatic smoking machine, the elevating device, and the suction device. The control device controls the automatic smoking machine, the suction device and the elevating device, and sucks the inside of the smoke collecting hood,
The sidestream smoke trap, wherein the automatic smoker is driven to collect sidestream smoke generated when the cigarette is burned into the air collection trap via the smoke collection hood and the communication pipe. Collector. 2. The sidestream smoke collection device according to claim 1, wherein the opening of the smoke collecting hood is a longitudinal opening covering the periphery of the cigarette. 3. The sidestream smoke according to claim 1 or 2, further comprising a filter between the smoke collection hood and the air collection trap for removing coarse tar in the sidestream smoke. Collection device. 4. A plurality of sets of the automatic smoking machine, the smoke collecting hood, the communication pipe, the air collecting trap, and the air suction device, and the control device includes the automatic smoking machine of each set, the lifting device, The sidestream smoke collection device according to claim 1, wherein the intake device is controlled. 5. The smoking machine according to claim 1, further comprising:
A horizontal air volume adjusting plate that is movably disposed facing the opening of the smoke collecting hood and that adjusts the amount of air sucked into the opening. Item 4. The sidestream smoke trap according to Item 3. 6. The mass air flow controller according to claim 1, wherein said intake device includes a mass flow controller for controlling a gas flow rate to a constant volume per unit time. Or the sidestream smoke collection device according to claim 5. 7. A flammable thread hung in the vicinity of the smoking mouth of a cigarette mounted on a smoking mouth of the automatic smoking machine, and the yarn burns with the seed flame of the cigarette to reduce the tension of the yarn. And a switch device that is closed or opened by changing, and wherein the control device detects the end of combustion of the cigarette by closing or opening the switch device. 7. The sidestream smoke trap according to claim 2, claim 3, claim 4, claim 5, claim 5, or claim 6. 8. A cigarette attached to a smoking mouth of an automatic smoking machine is covered with a smoke collecting hood, and the inside of the smoke collecting hood is sucked through an air collecting trap, and the automatic smoking machine is driven to drive the cigarette. The sidestream smoke generated during the burning of tobacco is collected in the air collecting trap via the smoke collecting hood, and the combustion of the cigarette mounted in the smoking mouth of the automatic smoking machine to a predetermined position on the smoking mouth side is completed. Detecting the end of the combustion, and terminating the collection of the sidestream smoke when the end of combustion is detected. 9. A flammable thread is wrapped around the smoking mouth of the cigarette, and the thread burns on the seed of the cigarette to change the tension of the thread, thereby burning the cigarette. The method according to claim 8, wherein the end is detected.