ROTARY AEROSOL PRODUCT |
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申请号 | EP01978820.7 | 申请日 | 2001-10-17 | 公开(公告)号 | EP1240948B1 | 公开(公告)日 | 2012-07-18 |
申请人 | Daizo Co., Ltd.; | 发明人 | ZANMA, Shigekazu; TANAKA, Masazumi; | ||||
摘要 | A rotary aerosol product (10), comprising an aerosol product (11) and a rotary table (12) installed at the bottom part thereof, wherein spraying is sustained during the rotation of the product (11) and the number of rotations is 35 rpm or less, the injection hole (13a) of a nozzle (13) is eccentric from the center of rotation of the product (11) and the product (11) is rotated with the reaction by the injection from the nozzle (13), and the number of rotations is adjusted by the frictional force caused between a rotating member (31) and a fixed member (32) or balls (33). | ||||||
权利要求 | |||||||
说明书全文 | The present invention relates to a rotatable aerosol product, more specifically, relates to a rotatable aerosol product having an excellent dispersion performance, such as that sprayed particles are widely dispersed in space or attach to a floor face in a wide range. Conventionally, aerosol products, such as insecticide and fragrant, have been used for treating space such as a room and inside of an automobile, and a floor face such as tatami and carpet. As these aerosol products target at spraying in a wide range, the sprayed particles should be dispersed widely Therefore, a aerosol product of a so-called total amount spray type is used, where the product is set on a floor face, instead of handing it, to spray the total amount while a user takes shelter. In order to further extend a range of spray, aerosol products to be rotated by counteraction of spray to spray in a wide range have been proposed. in Japanese Examined Utility Model Publication The said conventional rotatable aerosol product automatically rotates in a body by counteraction of spray, so that the particles spread in the 360-degree range around the product. Therefore, it has the advantage of spraying in a wide range, in comparison with an aerosol product of a fixed position type to spray simply upward or obliquely upward. However, such rotatable aerosol product may be interrupted its smooth rotation, and oocasionally, despite any content remains, stops spraying before the entire amount is sprayed. In addition, the inventor found that even in a state of smooth rotation, the sprayed aerosol does not reach as far as in the case of spray without rotation. In other words, with a rotatable aerosol product, dispersion concentration is high near itself, but farther a distance is, lower the concentration abruptly becomes. The inventor intended to solve problems of an inappropriate rotation and interruption of spray, as seen in such rotatable aerosol product, and improved a mechanism of a bearing to support an aerosol product. As the result, we completed to develop an aerosol product to rotate more smoothly When the amount of the remained content becomes less, however, such problems as that rotations become not smooth and spray is interrupted, were still not solved but got worse. On the other hand, the inventor found the tendency that the sprayed aerosol reached a shorter distance when rotations became smoother. In consideration of the above problems, the first technological object of the present invention is to provide an aerosol product to keep rotation smooth to spray the total amount of the content to the end as much as possible. Further, the second technological object of the present invention is to provide a rotatable aerosol product to make a reaching distances of the sprayed aerosol longer to spray in a wider range. Through the experiment and study on a reason why a rotatable aerosol product is interrupted its smooth rotation and spray, the inventor found that in a rotatable aerosol product as shown in The reason why a spray-reaching distance becomes shorter has not been proven. It is conceivable, however, that in case of spray with a spray hole retreating, as an aerosol product rotated by counteraction of spray speed in air becomes relatively lower to make a spray-reaching distance shorter, even if speed of spray from the spray hole is constant. On the other hand, when staying in atmosphere for a long time, an effective ingredient in the aerosol composition hazardous to living bodies, such as an insecticide may be inhaled by a human. Therefore, a size of a sprayed particle is regulated to a predetermined average or larger to fall on a floor and attach to a wall and the like within a certain time. Accordingly, it is presumable that when a relative speed is low, the particles fall on a floor before reaching far On the other hand, it is also presumable that a direction of the spray hole changes continuously along with rotation, and hence, a flow of air caused by spray does not reach far. The inventor carried out, on the basis of the above hypothesis, experiments of spray by intentionally lowering the rotation speed. As the result, the inventor found facts that, when rotation is carried out at a certain rotation frequency on less, the centrifugal force is suppressed to allow the total amount of the concentrate to be smoothly sucked and also the sprayed particles to reach far. The inventor completed the present invention with these findings. According to the present invention there is provided an aerosol product as defined in claim 1. The dependent claims set out features of certain preferred embodiments. The aerosol product according to the present invention rotates at 35 frequencies / minute or lower, and therefore, the central part of the liquid face of the aerosol composition in the container hardly lowers. Consequently, in the aerosol product using the dip tube, the sucking orifice thereof does not appear from the liquid face to the upward part during spraying and the propellant is never sprayed separately. In addition, even in case of a spray hole moving to the direction opposite to a spraying direction, the relative speed of the sprayed particles does not lower so much against air and the spray-reaching distance is around 70 to 98 % of the case of an aerosol product without rotation. Thus, the product can spray far enough. Further, in case of rotation of 30 frequencies / minute or lower, lowering of the liquid face is even smaller while the reaching distance of the sprayed particles becomes longer to allow wide dispersion such as in a room. When the direction of the spray hole is set at -10 to 70 degrees upward to a horizontal plane, the product can disperse far from the top of the aerosol product and to space or a floor face in a room widely. In other words, in case of an angle smaller than -10 degrees (downward), the particles are dispersed only on a floor face in a narrow range around itself, while in case of an angle over 70 degrees, , it is dispersed only upward the aerosol product, but not reaching far. When in a range from 30 to 70 degrees, the particles can be dispersed widely to an indoor space to be preferable for space spray In other words, in an angle smaller than 30 degrees, the particles are dispersed more around a floor face while dispersion in space decreases. On the contrary, when an angle of the spray hole is set -10 to 30 degrees to a horizontal plane, the sprayed particles is not dispersed to a high position but can be attached to a floor face widely, resulting in preferable for floor face spray. In other words, an angle over 30 degrees causes vain attachment of the sprayed particles to a high position. When the spray amount is set 7 to 30 g / 10 seconds, the particles can reach far enough, and also, the concentration of the propellant does not abruptly increase in space. In other words, when sprayed amount is less than 7 g / 10 seconds, the particles does not reach far enough, and if rotation is caused by counteraction of the spray, full rotation is not obtained On the contrary, when the spray amount exceeds 30 g / 10 seconds, the concentration of the propellant abruptly increases in space to be dangerous. In addition, as the counteraction of spray increases, the product does not rotate stably. When the propellant of the aerosol composition is prepared in a proportion ranging from 25 to 90 wt %, the average size of sprayed particles is appropriate to be dispersed in a wide range and reach far. In other words, in case of proportion of the propellant less than 25 wt %, sprayed particles become large, so that the particles is easy to drop in a liquid state. In addition, spray speed becomes slow, and thus, the particles do not distribute in a wide range. Moreover, in case of rotation by counteraction of spray the amount of the propellant is excessively small, and hence, it is difficult to spray the total amount with rotation. On the contrary, when a proportion of a propellant exceeds 90 wt %, sprayed particles become excessively small, so that they do not reach far. In addition, as spray force is strong, when rotation is realized by counteraction, it is difficult to suppress rotation to 35 frequencies / minute. When a proportion of a propellant ranges from 30 to 85 wt %, however it is advantageous that particles are dispersed to wider areas and also reach far When counteraction, of spray is used as a driving source of rotation of an aerosol product, other driving source is not needed, resulting in a simple structure. In case of using other driving source such as a motor or a spring, the torque for rotation does not depend on a magnitude of an internal pressure. Therefore, rotation can be easily carried out despite of the amount of the remained content. In an aerosol product rotating 45 to 720 degrees for a period from the start of spray until the total amount is sprayed, rotation seldom causes a bad effect and dispersion can also be realized enough in a preferable range. On the other hand, when spray is completed with rotation at an angle of 360 degrees or smaller, particularly from 45 to 90 degrees, for example, when a range to be sprayed is restricted such as a case of arranging at a corner of a room, an advantage to avoid any vain spray is obtained In addition, with a product starting spray or rotation when a predetermined time passes after operation, a user to operate can take shelter before spray or rotation starts. Hence, there is less probability of that a user receives or inhales any sprayed concentrate. On the other hand, even if a product starts spray or rotation immediately after operation, when it requires 5 or more seconds from operation to 90-degree rotation, spray can be confirmed through operation in a state where the spray hole is directed to a side opposite to a user. In addition, the spray hole is not kept directed to a user's side for 5 or longer seconds. Therefore, there is enough time for the user to take shelter and it is prevented that the user receives or inhales any sprayed concentrate. When such aerosol product is provided with a rotation resistance means reducing resistance after rotation starts, rotation speed is lowered by the rotation resistance means, so that counteraction of spray and the like can be used as a rotation driving means. Therefore, the rotation driving means can be easily constituted and rotation speed can also be lowered in an early stage of rotation to save time for a user to take shelter. With a product spraying only gas immediately after operation and starting to spray a concentrate after a predetermined time passes, if tasking shelter during spray of gas, a user is free from inhalation of the concentrate containing an effective ingredient such as a insecticide. In an aerosol product with means of communicating a valve with a gas phase of an inside of a container to rotate by reaction force of sprayed gas immediately after operation and then communicating the valve with a liquid phase of the inside of the container when increasing rotation speed, when the rotation speed is low, only gas is sprayed through the valve, while, in increasing the rotation speed, the contents in the liquid phase (the concentrate and liquefied gas) is sprayed through the valve. In an aerosol product with a dosing member installed movably between first position which close a bottom hole communicating with a dip tube and second position which close a vapor tap, in which radius of the second position from center of rotation is larger than the first position, when rotation is slow, the dosing member closes the bottom hole and releases the vapor tap, and therefore, a gas phase part is communicated with a valve by the vapor tap. In addition, when rotation speed increases, the dosing member is moved by centrifugal force to close the vapor tap, resulting in release of the bottom hole. Thereby, communication of the gas phase part with the valve is blocked off and the valve is communicated with the liquid phase through the dip tube and the bottom hole. When a rotatable aerosol product has a first spray hole to rotate the container in one direction against the center of rotation and a second spray hole to rotate it in the reverse direction, where the container is rotated by difference in counteraction of spray from the first and seconds spray holes, it is possible to reduce rotation keeping a large amount of spray. In addition, one spray hole sprays proceeding, so that the concentrate reaches fan On the other hand, as reaching distances of the concentrate differ between the both spray holes, the liquid can be widely distributed in a range between near and far from the container. For reference, when the spray amount from the one spray hole reduces, the spray amount from the other spray hole also reduces, and therefore, both the spray amounts balance to reduce the speed moderately as a whole. In addition, in a rotatable aerosol product consisted so that a part of the container including a spray hole is installed movably to other parts of the container between a first radial position and angle position with a small torque of counteraction and a second radial position and angle position with a large torque of counteraction, and moves from the first position to the second position when the centrifugal force becomes large, as rotation becomes faster, the centrifugal force becomes larger, thereby making the radial position or the angle position of the spray hole move gradually to the second position with a large torque. Hence, rotation becomes further faster. Consequently, rotation is slow in the early stage to allow an operating person to take shelter easily, and thereafter, rotation gradually becomes fasten The sprayed concentrate changes its reaching distances according to changes of rotation speed, and thus, dispersion of the concentrate can be uniformed. When a rotatable aerosol product is provided with a nozzle rotatable between erect and fallen states to the top end of the main body of the container and elastically energized to normally direct upward and a spray hole directed toward the outside at the front end of the nozzle, in the early stage where spray force is strong and rotation is fast, the nozzle is fallen by the centrifugal force to direct the spray hole almost horizontally, and thereby, the concentrate is widely sprayed. Subsequently, rotation gradually becomes slow, the centrifugal force becomes small, and therefore, the nozzle is gradually directed upward by the energizing force to make it upward. Thus, the liquid is concentrically sprayed upper the aerosol product, Consequently, until the total amount is sprayed, the aerosol product sprays in a range between far from and near itself totally and uniformly. On the other hand, even in case of a product without rotation by counteraction, when a first spray hole to spray backward to a direction of rotation and a second spray hole to spray forward are provided, the force of forward spray from the second spray hole is stronger than the force of backward spray from the first spray hole, so that spray ranges differ between the both holes. Therefore, the product can spray in a wider range. In addition, counteraction of forward and backward spray is offset each other, and thus, load of the rotation driving mechanism becomes small to make control of the rotation speed easy. In this case, if the angles of the horizontal and/or vertical direction between the first and second spray holes are made different, the spray range of the both can be further changed to realize spray in a wider range.
A rotatable aerosol product 10, shown in In the inside of the container 14, an aerosol composition 18 consisting of a concentrate (a drug liquid containing an effective ingredient) and a propellant is filled. The effective ingredient is prepared with a insecticide, a pest repellent, a deodorant, a fragrance, a bactericide, an abstergent and the like to be sprayed in space in a room, an automobile and the like or attached to a tatami, carpet, floor, sofa, curtain, a body of an automobile and the like. The propellant is prepared with a liquefied petroleum gas such as propane, butane and a mixture thereof and liquefied gas such as dimethyl ether, freon-based liquefied gas and the mixture thereof. In addition, as a pressurizing agent, a compressed gas such as carbon dioxide, nitrogen, nitrogen suboxide and compressed air may be used. The concentrate and the propellant are filled together in the said container 14. When the valve 15 is opened to release the both components to the outside together, the propellant is vaporized at the valve 15, the stem 16 or the nozzle 13. At this time, the concentrate is made into fine particles to be sprayed to the outside in a mist together with gas of the propellant. On the other hand, in case of using an abstergent, the concentrate may be in a spray foam, containing a foaming agent such as a surfactant, sprayed in a mist and making foam on an attaching face. Consequently, when the above propellant is contained in a higher proportion while the concentrate in a lower proportion, the concentrate becomes fine spray particles. On the other hand, when the propellant is contained in a lower proportion while the concentrate in a higher proportion, spray particles tend to become rough. Therefore, as described in the previous section of action, a preferable proportion of the propellant in the aerosol composition 18 ranges from 25 to 90 wt %, more preferable from 30 to 85 wt %. The said button 17 has the nozzle 13 facing toward a direction eccentric from the radial position of the container 14 in an obliquely upward direction. As shown in The size of the spray hole 13a of the nozzle 13 may be the same as that of a normal space spray or a floor face spray, for example, diameter preferably ranging from 0.3 to 1.0 mm. In other words, in case of a spray hole diameter smaller than 0.3 mm, the spray amount becomes less, thereby failing wide range dispersion. In addition, in case of rotation by counteraction of spray as this embodiment, counteraction is small, so that stable rotation is not realized. On the contrary, in case of a spray hole diameter larger than 1.0 mm, the spray amount becomes excessive, and thus, concentration of sprayed particles becomes higher abruptly. In case of rotation by counteraction of spray, this is because rotation speed becomes excessively higher, so that it is difficult to make rotation frequency in a range within a predetermined one. In addition, the spray amount defined by shapes of the nozzle 13 and the valve 15, proportion of the propellant in the composition and a pressure of the inside of the container 14 preferably ranges from 7 to 30 g / 10 seconds as the above description of action. In the aerosol product 10 of For reference, according to this embodiment, the container 14 is a so-called 3-piece can comprising a cylindrical trunk portion 19, a dome 21 fixed to the top portion thereof by a winding-up part 20, and a bottom portion 23 fixed to the bottom portion of the trunk portion 19 by the winding-up part 22. The said valve 15 is crimped to the bead part 21a formed on the top part of the dome 21. The bottom portion 23 is curved in a center and the winding-up part 22 combining the trunk part with the bottom part shows an annular shape projecting downward. In addition, an outer circumferential part of the winding-up part 22 is made in an almost same diameter as the trunk portion 19, and thus, an annular recess portion 24 is placed at an immediately upward portion of the winding up part 22. The said rotatable stand 12 comprises an annular rotatable member 31 filled in the winding up part 22, an annular supporting member 32 arranged in a downward position of the rotatable member 31, a plurality of balls 33 interposed between the both members, and a retainer 34 keeping a distances between the balls. As shown in The said supporting member 32 has a bottom board 44 made of an annular board body, an annular step part 45 installed in the inside of the bottom part, and an inner cylinder 46 erect from the inner end of the step part. On the top face of the step part 45, an annular groove 47 is formed to roll the ball 33. The outer circumference of the bottom board 44 projects to the outside of the outer circumferential wall 36 of the rotatable member 31. The bottom end of the outer circumferential wall 36 of the rotatable member 31 is lower than the step part 45 in a state of the rotatable stand 12 assembled. The inner face of the outer circumferential wall 36 faces the outside of the outer circumferential face of the step 45 through a space. In addition, the inner cylinder 46 of the supporting member 32 extends to the upward of the pressing part 37 of the rotatable member 31 and on the outside face of the top end thereof, a hook 48 is installed to engage with the top face of the pressing part 37 through a space. The hook 48 is, for example, as shown in The said rotatable member 31 and supporting member 32 can be made of a synthetic resin, a metal and the like. In case of a synthetic resin, there are advantages of a light weight and no rust occurrence. On the other hand, the winding up part 22 of the container 14 is fitted closely to the fitting groove of the rotatable member 31. In addition, for the bottom face 44 of the supporting member 32, a seal 49 with a high friction coefficient may be adhered to or a synthetic resin layer may be put on to prevent slip. Whereby, stable rotation can be realized. In addition, a 2-face adhering sheet or gluing sheet may be adhered, thereby to realize tight fixation on a floor and the like. In this case, a release paper is normally adhered. The said ball 33 may be a steel ball used as a normal ball bearing. However other metal-made ball may be used and it may be synthetic resin. It is preferable to blend lubricant oil with a synthetic resin to make sliding smooth. The number of the balls 33 is not specially restricted. In As shown in The friction coefficient of rotation of the above rotatable stand 12 differs depending on a quality and molding precision of the rotatable member 31, the annular supporting member 32 and the ball 33, precision of fitness and a kind of the lubricant if used. In the present embodiment, rotation is determined to be at 35 frequencies / minute or fewer and smooth, when the aerosol composition is sprayed from the nozzle 13 and the counteraction thereof causes rotation. For reference, a lower limit of rotation number is not specially restricted, but normally determined to 1 rotation or move, in other words, 360-degree or more rotation, before the total amount is sprayed. However, when the range of a spray direction is restricted, for example, in case of using a deodorant for a rest room and of spraying from an entrance of a corner of a room to an inside (see On the other hand, besides the rotatable stand 12, rotation frequency of the aerosol product can also be suppressed by increasing a fluid frictional resistance against air through providing blades on the container 14 (see For using the rotatable aerosol product constituted according to the above described condition, the product is first put on a face such as a floor of a room and then, the button 17 of the Then, also in this embodiment, rotation is defined to become at 35 frequencies / minute or fewer, and thus, a moving speed of the spray hole is not so fast and spray force of the propellant is consumed to carry sprayed particles far away. Thus, the sprayed concentrate reaches far. In addition, spray is carried out with the spray hole rotating, allowing dispersion in a wide range in space. On the other hand, as the central part of the liquid face of the aerosol composition 18 in the container 14 lowers not so largely, the propellant is released during spraying and almost the total amount can be sprayed completely. On the other hand the weight of the aerosol product 10 is loaded on the winding-up portion 22 during rotation and supported by the supporting member 32 through a plurality of the balls 33. Therefore, it rotates stably. Along with rotation, the aerosol composition in the container 14 moves to the outer circumferential direction and swings reducing the weight thereof, but is stably supported by the row of the balls 33 dispersed in a wide range. When the remained amount of the aerosol composition becomes less, the weight of the aerosol product 10 becomes smaller, and thus, the frictional resistance against rotation reduces. However, liquefied gas is continually sprayed, so that vaporization of liquefied gas is repeated inside the container to cool the aerosol composition in the container. As the result, the internal pressure of the container 14 reduces, and thus, rotation does not become so faster, but is reduced. Consequently, only the propellant is not separately released during spraying. For reference, in case of rotation by counteraction of spray as described above, rotation is slow immediately after start of spray and when the remained amount becomes less. However, the condition of rotation of 35 frequencies / minute or fewer according to the present invention should be satisfied, when rotation is kept stable (preferably from start until finish of rotation). The button 17 shown in The button 17 in In the rotatable stand 12 shown in In the rotatable stand 12 shown in In the aerosol product 11 shown in In a rotatable aerosol product 65 in In the rotatable aerosol product 65 shown in In any rotatable aerosol product as described above, the mechanism preferable to be installed is one to start to spray some seconds after an operation to press the button. By this mechanism, a user can have time to take shelter. Such mechanism can be realized by installing, in a spray passage (from the stem hole to the spray hole) of the aerosol product, a conventionally publicly known mechanism to delay start of spray by resistance obtained from air, viscous fluid, an elastic body, and the like. However, an aerosol product, rotating in an angle of 90 degrees or small for 5 seconds after the above-described operation, may be set to start spraying immediately after the start of the operation. This is because spray does not affect a user and the user can take shelter following confirmation of spray. In the rotatable aerosol product 65 in As the aerosol product of In the aerosol product employing this valve 15A, at starting spray by pressing the stem 16 down, gas of liquefied gas and compressed gas in the gas phase is introduced from the vapor tap 77 and the ball 80 moves to the central part by the force of the introduced gas to close the bottom hole 79 (see As described above, in the aerosol product with the valve 15A in In an aerosol product 81 shown in In this product, as the front end of the dip tube 82 communicates with the gas phase part 85 in an early stage, when the stem 16 is pressed down, only gas is first sprayed from the dip tube 82 to blow outside through the valve 15 and the stem 16. Therefore, the container starts to rotate by counteraction of spray. When rotation increases at a certain level, as indicated by the phantom line, the front end of the dip tube 82 enters the liquid phase part 86 by centrifugal force occurring in the weight 84. Thereby, the aerosol composition is sucked from the front end of the dip tube 82 to be sprayed outside through the stem 16. Embodiments, including that in In a rotatable aerosol product 88 shown in When only one nozzle is employed, a product of multiplication of the horizontal direction component of counteraction of spray to the distance R from the rotation center O to the spray hole works as a torque. In this embodiment, as torque of both the nozzles work in an opposite direction, only difference in torque contributes to rotation. Consequently, rotation speed is low and the sprayed concentrate reaches far from the spray hole. On the other hand, a matter B1 sprayed from the first nozzle 89a is, like a conventional one, sprayed backward to a progress direction. However, the matter B2 from the second nozzle 89b is sprayed frontward to the progress direction to make the spray distance longer. On the other hand, the sprayed amount from the both nozzles 89a and 89b is twice as much as that of 1 nozzle, and hence, spray amount itself becomes more. For reference, although changeable depending on rotation speed, the matter B1 sprayed from the first nozzle 89a is sprayed in a low angle to reach far, while the matter B2 from the second nozzle 89b is sprayed in a high angle to reach upward, but horizontally in a short distance. As described above, the two nozzles 89a and 89b can spray in a wider range in a room compensating each other. In case of In the embodiments of In the above-described embodiment, the button 17 is made rotatably and the two nozzles 89a and 89b are installed at the button 17. As the rotatable aerosol product 10 shown in In the rotatable aerosol product 90 shown in Moreover, in this embodiment, a projection 94 to keep a spray state is formed on the button 17 and a shoulder cover 95 is attached to a shoulder part of the container 14 and the step part 96 is formed on the shoulder cover 95 so as to fit to the projection 94. Thus, when rotation carried out by pressing the button 17, the projection 94 is engaged with the step part 96 to keep the spray state. On the bottom part of the container 14, the rotatable stand 12 is installed. In this product, the tube 91, in the early stage of rotation, extends almost straightly upward by elasticity thereof and counteraction of spray from the spray hole works almost downward. Therefore, torque caused by spray is small. Hence, the nozzle 13 rotates slowly bending slightly downward. Then, when rotation starts, centrifugal force exerting on the nozzle 13 and the weight 92 makes the tube 91 bend outward from a base part 91a as indicated by the phantom line. As the result, the distance R from the rotation center O of the nozzle 13 increases gradually, as well as the direction of the spray hole approaching a horizontal position. Therefore, rotation torque caused by counteraction further increases to make more degree of slope. As described above, the rotatable aerosol product 90 sprays upward at a low rotation speed in the early stage of spray, and as progressing spray, sprays laterally at a higher rotation speed. Consequently, the product can widely disperse the concentrate from an upward position of the rotatable aerosol product 90 to a far position of a room. As shown in In the rotatable aerosol product 90 shown in The rotatable aerosol product 90 shown in In the rotatable aerosol product 90, in the state of no rotation, the tube 91 curves downward in the middle position thereof. As shown in When the remained amount reduces and the internal pressure becomes lower, rotation becomes slow. In this case, the rotatable aerosol product 90 can uniformly disperse the concentrate near to far from the position of the rotatable aerosol product 90 through the tube 91 directing downward and elongating laterally. Hence, the product can be used for dispersing a drug to treat a carpet and a floor, for example, a insecticide and deodorant, and used for dispersing a detergent to a body of an automobile. When a detergent is dispersed to a body of an automobile, as shown in In the said embodiments, aerosol products of the total amount spray type are shown, but the rotatable aerosol product according to the present invention is not restricted to this. For example, aerosol products of such type as a specific amount spray or a specific time spray type, including a product to spray a deodorant temporarily to an inside of an automobile and a room. An effect of the rotatable aerosol product according to the present invention is described with reference of experimental examples. Two kinds of the aerosol products presented in Table 1 below where filled in a tinplate-made 3-piece can (used throughout all experimental groups) of 180 ml full volume and two kinds of the aerosol containers with a valve and a button defined in Table 2 to manufacture four kinds of the aerosol products. Each of the above aerosol products was fixed to the rotatable stand to spray rotating at each rotation frequency shown in Table 3. At this time, dispersibility to space and adhesivity to a floor face where tested. The results are also presented in Table 3. In the test, the rotatable stand and the aerosol product 11 were arranged in a center of a room with a width of 4 m × 4 m and a height of 2.5 m as shown in [Method for evaluation] The aerosol product was arranged in the center of the room shown in Presence or absence of any reaction was examined in the places with horizontal distances of 1 m, 1.5 m and 2 m and heights of 1 m, 1.5 m and 2 m from the product. Evaluation of the test results is presented as below.
Presence or absence of any reaction was examined in the places with horizontal distances of 1 m, 1.5 m and 2 m and the height of 1 m from the product. Evaluation of the test result is presented as below.
From the above results, when rotation is 35 frequencies / minute or lower, the evaluations, for both dispersibility in space and adhesion to the floor face, were "a" or superior and dispersion in a relatively wider range is shown. In addition, when rotation is 30 frequencies / minute or lower, the evaluation of "a" was seen in the most of the cases and dispersion in a wide range is shown. Particularly, in case of 10 frequencies / minutes, all cases evaluated as "a" and it can be known that lower rotation speed makes dispersion range wider. On the other hand, in case of 40 frequencies / minutes, almost cases evaluated as "c" or "d", showing dispersion not far enough. |