JP2018093778A - Medicine volatilization device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medicine volatilization device that enables a high volatilization amount to be obtained irrespective of the direction of wind.SOLUTION: A medicine volatilization device 1 includes a carrier 2 that holds a medicine volatile at normal temperature, a container 3 that stores the carrier 2 inside and includes a ventilation opening 4, and a string 5 that hangs the container 3. The container 3 is roughly of a plate-like shape having a front face and a back face, and is so shaped that when an incidence angle of the wind to the front face or the back face of the container 3 is 90°, the right and left moments become equal, and when an incidence angle of the wind is not 90°, the right and left moments are not equal. (right and left here is the right and left when the container 3 is seen in a plane view while a user is standing at a front face side of the container 3).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a chemical volatilization apparatus that volatilizes a chemical for controlling flying insects at room temperature, for example.

  In recent years, in order to control flying insect pests such as mosquitoes etc., a volatilizing device that keeps a room temperature volatile chemical on a carrier and hangs it indoors or outdoors so that the chemical is continuously volatilized and has an insect repellent effect It has been known. These use drugs such as transfluthrin and methfluthrin to prevent flying insects from entering the house. Although these preparations use a room-temperature volatile chemical, since the chemical volatilizes naturally, the volatilization amount varies depending on variations in wind speed, temperature, wind direction, etc., and the effect tends to vary.

  Therefore, Patent Document 1 proposes a medicine diffuser in which a medicine holder is rotatably housed in a container and the medicine holder is rotated by the force of air. However, when the medicine holder is stored in the medicine device, the rotation angle may be limited by the container, and the device itself may be increased in size because of the further rotation. In addition, the medicine holding body does not always face the front with respect to the wind blowing direction, and the wind does not always strike the medicine holding body effectively. Therefore, there is a problem that a high volatilization amount cannot always be obtained.

JP 2014-135910 A

  This invention makes it a subject to provide the chemical | medical agent volatilization apparatus from which a high volatilization amount is obtained irrespective of a wind direction.

  As a result of intensive studies to solve the above problems, the present inventors have completed the present invention. That is, the chemical volatilization device of the present invention is as follows.

(1) A carrier having a room temperature volatile drug, a container having the carrier contained therein and having a ventilation opening, and a hanging tool for hanging the container, the container having a front surface and a rear surface. When the wind incident angle with respect to the front or back of the container is 90 °, the left and right moments are equal, and when the wind incident angle is other than 90 °, the left and right moments are not equal. A chemical volatilization apparatus characterized by having right and left (where the left and right mean the left and right when the container is viewed in plan while standing on the front side of the container).
(2) The container according to (1), wherein the container has a portion that is thicker than both sides in the width direction, the front and the back are both symmetrical, and the shapes of the front and the back are not congruent. Volatilization equipment.
(3) The said chemical | medical agent volatilization apparatus as described in (2) which has a relationship of 1 <= w / t <= 12, when the width is set to w and the maximum thickness is set to t.
(4) the ambient temperature volatile agents, Transfluthrin, metofluthrin, selected from the group consisting of empenthrin and profluthrin etc., vapor pressure ^{0.5 × 10 -3 Pa~5.0 × 10 -3} Pa (25 ℃) The chemical volatilization device according to any one of (1) to (3), comprising a pyrethroid insecticide.
(5) The container includes a front portion and a back portion, the carrier is positioned between the front portion and the back portion, and a ventilation opening is formed in the front portion and the back portion (1) ) To (4).
(6) The chemical volatilization device according to (5), wherein one or both of the front part and the rear part has a horizontal cross section of an arc shape, a trapezoidal shape, a triangle shape, or a corrugated shape.
(7) When the vertical distance from the upper end to the container is x and the distance between the two attachment parts on the upper surface of the container to which the suspension is attached is y, the hanging tool is 0 ≦ y / x The chemical volatilization device according to any one of (1) to (76) having a relationship of ≦ 2.

  According to the present invention, the container has a substantially plate shape having a front surface and a back surface. When the incident angle of the wind with respect to the front surface or the back surface is 90 °, the left and right moments are equal, so the container does not rotate. When the angle is not °, the left and right moments are not equal, so the container rotates and stops rotating at a position where the incident angle of the wind with respect to the front or back is 90 °. This makes it easier for the front or back of the container to face upwind, so that the wind can easily enter the container through the ventilation opening of the container. Therefore, the volatilization of the room temperature volatile drug held on the carrier in the container is promoted. As a result, a high volatilization amount can be obtained regardless of the wind direction.

It is a front view which shows the chemical volatilization apparatus which concerns on one Embodiment of this invention. It is sectional drawing of the chemical volatilization apparatus of FIG. It is explanatory drawing for demonstrating the dimension of the string which suspends the container in FIG. It is a top view of the container in the chemical volatilization apparatus of FIG. (A)-(c) is explanatory drawing which shows operation | movement of a chemical volatilization apparatus. (A)-(c) is explanatory drawing which shows the effect | action of the rotational moment to a chemical volatilization apparatus. (A)-(d) is sectional drawing which shows the other example of the container in this invention, respectively. (A) And (b) is explanatory drawing which shows the attachment method to the container of a hanging string. (A) And (b) is explanatory drawing which shows the attachment method to the container of a suspending member. It is explanatory drawing which shows the test method which tests the influence of the shape of the container with respect to a wind direction.

  Hereinafter, a chemical volatilization apparatus according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show a usage state of the drug volatilization apparatus 1 of the present embodiment. The drug volatilization apparatus 1 is used indoors or outdoors by suspending a container 3 containing a carrier 2 holding a room temperature volatile drug from above with a hanging string 5. A plurality of ventilation openings 4 are formed on the front surface of the container 3, and a plurality of ventilation openings 4 ′ are similarly formed on the back surface (see FIG. 2).

As shown in FIG. 2, the container 3 is a substantially plate-like body having a front part 3a and a back part 3b. In the present invention, the front surface of the container 3 refers to the outer surface of the front surface portion 3a, and the back surface of the container 3 refers to the outer surface of the back surface portion 3b.
The front surface portion 3a and the back surface portion 3b are integrated with each other at least at the side edge portions, and a ventilation space 6 is formed inside. The ventilation openings 4 and 4 ′ have the same shape and are provided at the same positions on the front surface 3 a and the back surface 3 b so as to maintain air permeability from the front to the back of the container 3. By providing such ventilation openings 4, 4 ', the room temperature volatile chemicals held on the carrier 2 can be volatilized from the ventilation openings 4, 4'.
The shape and position of the ventilation openings 4, 4 ′ are not particularly limited as long as air permeability is ensured between the front surface portion 3a and the back surface portion 3b, and the room temperature volatile chemical can be efficiently volatilized. For example, it may be provided on the side surface of the container 3, but in order to increase the volatilization amount of the room temperature volatile chemical, the total of the ventilation openings 4, 4 ′ with respect to the surface area of the container 3 A larger area ratio is preferable.

The container 3 is integrated by superimposing or butting the front part 3a and the rear part 3b formed as separate members at least at the side edge, but may be formed by integral molding. The front surface portion 3a and the back surface portion 3b are provided with a plurality of clamping members 8a and 8b projecting from the inner surface, and the clamping members 8a and 8b are abutted and integrated with each other with the carrier 2 sandwiched therebetween. Is done.
The material which comprises the container 3 (front part 3a and back part 3b) is not restrict | limited in particular, For example, it can form with various plastics, a metal, glass, paper, wood, ceramics, etc.

  For the integration of the front part 3a and the back part 3b, for example, a method using a locking member, a method using heat fusion, a method using an adhesive, or the like can be used. As a method using the locking member, for example, there is a method in which a claw portion (not shown) is provided on one of the peripheral portions of the front portion 3a and the back portion 3b, a concave portion is provided on the other, and the claw portion is locked to the concave portion. . The front surface portion 3a and the back surface portion 3b may be detachably integrated by using the above-described locking member.

  Examples of the carrier 2 holding a room temperature volatile chemical include a net formed from a fiber material. This net has openings that serve as vents useful for volatilization of room temperature volatile chemicals. Specifically, yarns knitted using a method such as lace knitting or knit knitting using yarns of short fibers or long fibers can be used.

Examples of the short fiber or long fiber yarn include natural fibers such as pulp, cotton, wool, hemp and silk, polypropylene, polyethylene, polyamide, polyethylene terephthalate, polybutylene terephthalate, polysulfone, rayon and methacrylic acid. Examples thereof include resins and other biodegradable resins (polyglycolic acid, polylactic acid, poly (β-hydroxybutyric acid)), and one or more of these materials can be used in combination. Among these, polyethylene terephthalate, polypropylene, polybutylene terephthalate, and polyethylene are particularly preferable.
In addition, conventionally well-known additives, such as a fungicide, a pigment | dye, a ultraviolet absorber, a fragrance | flavor, can also be contained in a fiber, for example.

  The ratio of the net openings (vent holes) is not particularly limited, but the ratio of the total area of the openings in the total area of the net is 5 to 80%, preferably 10 to 50%. If the opening ratio is too small, the volatility of the room temperature volatile chemical held in the thread may be reduced. On the other hand, if the opening ratio is too large, the weight of the thread per unit area (ie, basis weight). Tends to be small, and the amount of the room temperature volatile drug tends to decrease.

  The room temperature volatile chemicals retained on the net are chemicals that can be volatilized at room temperature, and various pest control agents (insecticides, repellents, etc.), fragrances, deodorants / deodorants, bactericides, fungicides, etc. Of these various drugs, it may be appropriately selected according to the purpose, and is not particularly limited. Only one type of room temperature volatile drug may be used, or two or more types may be used.

  Examples of the pest control agents include various insecticides such as organic phosphorus, carbamate, and pyrethroids, repellents, insect growth regulators, and the like. Examples of pest control agents include, for example, organic phosphorus insecticides such as DDVP and diazinon, carbamate insecticides such as propoxer, and pyrethroid insecticides such as phthalthrin, praretrin, and tefluthrin. , Transfluthrin, metofluthrin, dimeflutrin, mepafluthrin, profluthrin, empentrin, terrareslin, and the like. Of these, transfluthrin, metofluthrin, empentrin, and profluthrin are preferred. Other pest control agents include plant essential oils, terpenes, and isomers and derivatives thereof.

  Examples of the fragrance include, for example, lavender oil, potato incense, Ryunobu incense, Abies oil, citronella oil, eucalyptus oil, fennel oil, garlic oil, ginger oil, grapefruit oil, lemon oil, lemongrass oil, nutmeg oil, mint Essential oils such as oil, orange oil, turpentine oil, sage oil, pinene, limonene, linalool, geraniol, citronellal, borneol, benzyl alcohol, anise alcohol, anethole, eugenol, aldehyde, citral, citronellal, crocodile, carvone, ketone, menthone , Acetophenone, coumarin, cineol, ethyl acetate, octyl acetate, linalyl acetate, butyl cyclohexyl acetate, butyl cycloheptyl acetate, isopropyl isobutyrate, allyl caproate, ethyl benzoate, methyl cinnamate Include perfumes, such as methyl salicylate.

  Examples of the deodorant / deodorant include benzyl acetate, benzyl propionate, amylcinnamic aldehyde, anisic aldehyde, diphenyl oxide, methyl benzoate, ethyl benzoate, methyl phenylacetate, ethyl phenylacetate, neoline, safrole, Citronella oil, lemongrass oil and the like can be mentioned.

  Examples of the bactericides include IPMP (isopropyl methylphenol), PCMX (p-chloro-m-xylenol), AIT (allyl isothiocyanate), hinokitiol, and stabilized chlorine dioxide.

  Furthermore, various additives can be contained in the room-temperature volatile drug as needed, as long as the effects of the present invention are not impaired. Examples of the additive include an efficacy enhancer, a volatilization rate improver, and a stabilizer. Only one type of additive may be used, or two or more types may be used.

  Examples of the volatilization rate improver include phenethyl isothiocyanate, dimethyl himixate, and the like. Examples of the stabilizer include 3,5-di-t-butyl-4-hydroxytoluene, 3-t-butyl-4-hydroxyanisole, mercaptobenzimidazole, dilauryl-thio-di-propionate, and 2,2 ′. -Methylene-bis- (6-tert-butyl-4-methylphenol), 4,4'-methylene-bis- (2,6-di-tert-butylphenol), 4,4'-thio-bis- (6 -T-butyl-3-methylphenol), phenyl-β-naphthylamine, 2-t-butyl-4-methoxyphenol, stearyl-β- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, Examples include α-tocopherol, ascorbic acid, erythorbic acid, and the like.

  The method for holding the room temperature volatile drug on the carrier 2 is not particularly limited. For example, a solution is prepared by dissolving the room temperature volatile drug in a solvent, and the carrier (net) is immersed in the solution. , A method of impregnating the net with a room-temperature volatile drug by spraying or dropping the solution or a cold-volatile drug substance (drug itself) on the net, and kneading the drug into the carrier 2 A method etc. can be adopted. Further, if necessary, after impregnating the room temperature volatile chemical, the solvent used may be removed by drying or the like. Moreover, each said operation at the time of hold | maintaining a normal temperature volatile chemical | medical agent can be performed repeatedly until the retention amount of a normal temperature volatile chemical | medical agent reaches a desired quantity.

  The solvent for preparing the solution of the room temperature volatile chemical is not particularly limited. For example, hydrocarbons such as water, naphthene, kerosene, paraffin, glycerin, propylene glycol, dipropylene glycol, hexylene glycol, methanol , Alcohols such as isopropanol, 1-octanol and 1-dodecanol, ketones such as acetone and acetophenone, ethers such as dihexyl ether, diethylene glycol diethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monobutyl ether and dipropylene glycol dimethyl ether , One or more of esters such as dioctyl adipate, diethyl malonate and diethyl phthalate, xylene, chlorocene and silicone oil.

The amount of the room temperature volatile drug (drug) to be retained is appropriately determined so as to achieve a desired effect (volatility or effective period) in consideration of the type of drug or the like. Specifically, a room temperature volatile chemical in an amount of about 600 g / m ^{2 at} maximum can be held per unit area of the carrier 2.

  The carrier 2 may be held by a frame not shown. If the frame holding the carrier 2 is a cartridge type, when all or almost all the volatilization agent is volatilized and the efficacy is lost or reduced, the used frame can be replaced with a new frame. Again, an excellent effect can be expressed.

As shown in FIGS. 1 and 2, the container 3 is suspended from a hook-shaped fixture 9 by a suspension string 5. The hanging string 5 is formed of a single string that is formed in a ring shape by connecting both ends.
At this time, as will be described later, the hanging strap 5 needs to make the container 3 rotate so that the front of the container 3 can easily face the windward with respect to the wind. Specifically, as shown in FIG. 3, one hanging string 5 is made into a triangle and the container 3 is suspended, and the vertical distance from the fixture 9 to the container 3 is set to x, two or one string. 5 is preferably 0 ≦ y / x ≦ 2, where y is the distance between the two string attachment portions on the upper end surface of the container to which 5 is attached. Thereby, the container 3 becomes easy to rotate upwind according to the wind direction. y / x is more preferably 0.01 or more. When y / x is 0, that is, when y = 0, it means that it is suspended by one string. Even in the case of y = 0, the container rotates with the wind, and stops rotating at a position where the incident angle of the wind with respect to the front surface or the back surface is 90 °.

Moreover, it is preferable that the distance (namely, the said vertical distance x) of the container 3 and the fixing tool 9 is 1 mm or more.
Moreover, it is preferable that the hanging string 5 is made of a relatively soft material having a diameter of 50 mm or less. If a rigid string is used, the container 3 is difficult to rotate. Specifically, the degree of softness is such that when a 15 cm long string is erected vertically to the floor, at least the upper end of the hanging string bends to such an extent that it comes into contact with the floor surface. It is good and the whole surface may contact the floor.
Examples of the material of the hanging string 5 include, but are not particularly limited to, fiber yarns such as multifilaments and monofilaments, resins, and elastomers. The hanging string 5 may be formed by suspending the container 3 with two strings in addition to one string tied in a ring shape.

  The hook-shaped fixture 9 described above is attached to the ceiling surface or the like, but is not hook-shaped. For example, the hanging string 5 may be tied to a clothesline, a veranda or a handrail on the staircase outdoors. Well, not particularly limited,

FIG. 4 is a plan view for illustrating the shape of the container 3 in the present embodiment. As shown in the figure, the container 3 has a substantially plate shape having a front surface portion 3a and a back surface portion 3b, and is thicker than both side portions in the width direction (central portion L in the embodiment of FIG. 4). And the front and back surfaces are both symmetrical. The upper part of the curved front part 3a is closed by an upper surface part 3c serving as a lid. The upper surface portion 3c is formed integrally with the front surface portion 3a.
Specifically, the container 3 has a convex arc shape in which the thickness of the central part L is the largest in the width direction in the front part 3a and the rear part 3b which are overlapped and integrated on both sides. Is formed. The back surface 3b has a flat outer surface.
In addition, although the case where it is a flat surface is included in the above-mentioned left-right symmetric form, in this invention, a front surface and a back surface must not be a flat surface simultaneously.

  As shown in FIG. 4, the container 3 in which the front part 3 a and the back part 3 b are joined preferably has 1 ≦ w / t ≦ 12 where w is the width and t is the maximum thickness. Moreover, it is preferable that the shape of the front and back of a container is not congruent. That it is not congruent means that it is not three-dimensionally the same. In the case of congruence, the front portion 3a does not face the windward, which is not preferable. Specifically, for example, a cylindrical container has w / t = 1, but since the front and back shapes are congruent, the left and right moments are equal and excluded from the shape of the container 3 in this embodiment. . In the cylindrical container, the surface that receives the wind is small, and if the surface that receives the wind is large, the apparatus itself becomes large.

  As shown in FIG. 4, attachment holes 10 and 10 for attaching the string 5 are formed in the upper surface portion 3 c of the container 3. The attachment holes 10 and 10 are suitable, for example, for passing one string through the attachment holes 10 and 10 and connecting both ends into a ring shape. Moreover, it may replace with the attachment holes 10 and 10 and may be protrusions, such as a hook shape, which ties or locks the hanging string 5.

When the container 3 in the present embodiment has the above relationship, regardless of the wind direction, the front portion 3a always faces upwind (the direction in which the wind blows is indicated by an arrow K), so that the wind enters from the ventilation opening 4. And the amount of volatilization of the room temperature volatile chemical increases. That is, the container 3 rotates in the wind blowing direction (indicated by the arrow K) when the wind blows in the stationary state shown in FIG. 3a comes to face upwind ((c) in the figure).
As long as the above relational expression is satisfied, the entire front surface portion 3a does not have to be arcuate and may be a part. Moreover, in this embodiment, although the front part 3a of the container 3 has a shape which faces an upwind, you may make it have the shape which the back part 3b faces an upwind.

As described above, the container 3 is rotated and the front surface portion 3a is directed to the windward side when the incident angle of the wind with respect to the front surface or the rear surface of the container 3 is 90 °. This is because they have the same shape. In other words, when the wind incident angle is other than 90 °, the container 3 rotates because the left and right moments are not equal, but when the wind reaches the position of 90 ° with respect to the wind incident angle, the container 3 stops rotating. Therefore, the front part 3a of the container 3 always faces upwind.
Here, the incident angle of the wind, that is, the angle of the wind blowing toward the front or back of the container refers to the angle of the wind with respect to the width direction indicated by reference sign w in FIG. Moment refers to a moment of force and represents an amount representing the magnitude of the force that rotates the object.

Specifically, description will be made with reference to FIGS. As shown in FIG. 6A, when the incident angle of the wind on the front portion 3a of the container 3 is not 90 °, the left and right ends of the container 3 are parallel to the width direction with respect to the wind force F. There are a component force and a perpendicular component force. Here, let the perpendicular component force be Fr and Fl. Also, assuming that the distance from the center of gravity (G) of the container 3 is Lr and Ll, the moment for rotating the volatilization device is the counterclockwise moment = Fr × Lr, respectively.
Clockwise moment = Fl x Ll
It becomes. The clockwise direction means the clockwise direction when the container 3 is viewed in plan from the front 3a side of the container 3, and the counterclockwise direction is when the container 3 is viewed in plan from the front 3a side of the container 3 Means counterclockwise.
Here, although Lr = Ll, since Fr> Fl from the inclination of the front portion 3a of the container 3,
(Fr × Lr)> (Fl × Ll)
The relationship is established. Accordingly, a counterclockwise moment is applied, and the container 3 rotates counterclockwise (counterclockwise).
The reason why Fr> Fl will be described with reference to FIG. Fr and Fl are not single component forces, Fr indicates the sum of the vertical component forces of the wind force applied in the region A, and Fl indicates the sum of the vertical component forces of the wind force applied in the region B. Show. Regions A and B are separated by a line that intersects the vertical line segment passing through the center of gravity G of the container 3 and the surface of the container 3. The surface areas of the regions A and B perpendicular to the direction of the wind are A> B, so that the vertical component force Fr applied to the entire region A is larger than the vertical component force Fl applied to the entire region B.

  On the other hand, as shown in FIG. 6 (b), when the incident angle of the wind to the front portion 3a of the container 3 is 90 °, the rotational moments at the left and right ends are F × Lr (Ll), and the left and right moments are Since they are equal, the rotation stops.

  On the other hand, as shown in FIG. 6 (c), in the case of a container 3 'having a planar front part 3a' (however, 3a 'and 3b' are not congruent), the incidence of wind on the front part 3a ' Even if the angle is other than 90 °, the vertical component forces Fr and Fl of the wind are equal, but the wind force also acts on the right side surface of the container 3 ′ (the wind force on the side surface is indicated by an arrow Fs). . Therefore, when the container 3 'is viewed in plan from the front surface 3a' side, it becomes counterclockwise (counterclockwise)> clockwise (clockwise), and the container 3 'rotates counterclockwise (counterclockwise). The rotation stops at the position where the left and right moments are balanced (position where the force Fs disappears).

In the present invention, the shape of the front surface portion 3a or the back surface portion 3b of the container 3 is not limited to the arc shape described above, and has a portion that is thicker than both side portions in the width direction, and the front surface and the back surface. Both are preferably left-right symmetric, more preferably satisfying the above-mentioned relational expression, that is, the relation of 1 ≦ w / t ≦ 12, and that the shape of the front and back surfaces of the container is not congruent. For example, as shown in FIGS. 7A to 7C, the horizontal section may be a trapezoidal front part 31a, a triangular front part 32a, a corrugated front part 33a, or the like.
FIG. 7D shows ribs 15 and 15 projecting from both sides of the front. The ribs 15 and 15 may be provided over the entire length of the container 3 in the vertical direction, or only a part thereof. The ribs 15 are not limited to both sides, and ribs may be provided at a plurality of locations. This is because the surface area capable of receiving wind with a constant width (length) can be increased.

The method of attaching the hanging string 5 to the container 3 is not limited to the method shown in FIGS. 3 and 4, and various methods can be employed. For example, as shown in FIGS. 8A and 8B, the hanging string 5 may be hooked on the hook-shaped hooking portion 7 so as to tie both ends. 8A and 8B is formed by cutting out the upper end portion of the front portion 3a or the back portion 3b of the container 3 into a substantially U shape, but is not limited thereto.
Moreover, it may replace with the hanging string 5, and may use hanging member 5 'as shown to Fig.9 (a), (b). For the suspension member 5 ′, for example, a wire such as plastic, elastomer, metal, or other members that can be suspended can be used. The suspension member 5 is provided with a locking portion 16 at one end, and the locking portion 16 is inserted into a hole (not shown) provided on the upper surface of the container 3 and locked in the hole. A spherical portion 17 is provided at the other end of the suspension member 5. The spherical portion 17 is inserted into a recess 18 provided at the upper end of the side surface of the container 3, and the suspension member 5 is attached in a loop shape.
8 (a), 8 (b) and FIGS. 9 (a), 9 (b), the hanging string 5 and the hanging member 5 ′ are all in the relationship of 0 ≦ y / x ≦ 2 (see FIG. 3). ).

The chemical volatilization apparatus 1 of the present embodiment is used by being hung indoors or outdoors, for example. When used in this manner, the container 3 rotates and faces upwind according to the wind direction, so that a high volatilization amount can be obtained. For example, a building that is a place where flying pests such as mosquitoes and moths invade It is effective for pest control when it is suspended at the opening of a doorway or window.
In addition, for example, a toilet, indoor aroma, deodorization, and the like can be easily performed. Moreover, when the chemical volatilization device of the present invention is disposed on the front surface of a blowing means such as a blower or a fan, the volatility of the room temperature volatile chemical can be further enhanced by blowing.

  Hereinafter, since the test was performed on the shape of the container 3, the test result will be specifically described. However, the present invention is not limited to the following test examples.

(Test example)
FIG. 10A shows the container 13 used in the test. The container 13 is formed by processing a plastic plate into a cylindrical shape and has no upper and lower lids. The front surface 13a of the container 13 has an arc shape with a predetermined dimension shown in Table 1, and the back surface 13b is flat. The opening ratios of the front surface 13a and the back surface 13b (ratio of the area of the ventilation openings to the total area) are both 10%.
For the container 13, sample Nos. With different specifications w, t, and h shown in FIG. 1 to 10 were prepared. The container 13 is suspended by the string 5, and a wind (indicated by an arrow K) is applied from a blower (household fan) (not shown) to this, so that the front 13 a or the back surface 13 b of the container 13 comes in the direction of wind (windward). I checked whether it was suitable for. At this time, the blower was installed at 0 °, 45 °, 90 °, and 135 ° relative to the container 13 as shown in FIG. 10B, and the wind (K) was sent toward the container 13. The wind speed hitting the container 13 was tested in three stages of 1.5 m / sec, 1.0 m / sec and 0.5 m / sec.
The test was evaluated as follows.
○: The front surface 13a or the rear surface 13b of the container 13 faces in the direction in which the wind comes.
X: The container 13 rotates and does not face the direction in which the wind comes, or rotates continuously with the wind.

The test results are shown in Table 1.

Sample No. The following points are further clarified for 1, 2, 5 to 10.
(A) When the incident angle of the wind with respect to the container 13 is 0 °, when the container 13 is viewed in plan while standing on the front surface 13a side, a counterclockwise moment that rotates counterclockwise is added, and a clockwise moment Is 0, the container 13 rotates counterclockwise, and the front surface 13a faces the direction in which the wind comes.
(b) When the angle at which the wind comes to the container 13 is 45 °, (left-handed moment)> (right-handed moment) when the container 13 is viewed from the front 13a side of the container in plan view, The container 13 rotates counterclockwise and the front surface 13a faces in the direction in which the wind comes.
(C) When the angle of the wind with respect to the container 13 is 90 °, the left and right moments are equal when the container 13 is viewed from the front surface 13a side in a plan view, so the container 13 does not rotate, The front surface 13a of the container 13 remains facing in the direction in which the wind comes.
(D) When the incident angle of the wind with respect to the container 13 is 135 °, when standing in front of the container 13a and viewing the container 13 in plan view, (left-handed moment) <(right-handed moment), The container 13 rotates clockwise, and the front surface 13a faces in the direction in which the wind comes.

Further, from Table 1, sample Nos. 1, 2, 5 to 10 in which the container 13 has a relationship of 1 ≦ w / t ≦ 12 (where w is the lateral width and t is the maximum thickness) are the front of the container 13. It was confirmed that 13a was directed in the direction of the wind and was not affected by the wind speed.
On the other hand, since the sample No. 3 has w / t exceeding 12, especially when the wind speed is high, the container 13 is rotated and the wind is not directed. In Sample No. 4, since the thickness t is 0, the left and right moments are equal, and at any angle, especially when the wind speed is high, the container 13 rotates and does not face the direction in which the wind comes. Or it will rotate continuously by wind.

  In the above embodiment, a container having a front surface having an arc shape or other shape and a back surface having a flat shape has been described. However, a container having a front surface having a flat shape or a shape close thereto and the back surface having an arc shape or other shape. However, the same effect can be obtained.

DESCRIPTION OF SYMBOLS 1 Drug volatilization apparatus 2 Carrier 3 Container 3a Front part 3b Rear part 3c Upper surface part 4, 4 'Ventilation opening part 5 Suspension string (hanging tool)
5 'Hanging member (hanging tool)
6 Space 8a, 8b Holding member 9 Fixing tool 10 Mounting hole 13 Container 15 Rib 16 Locking part 17 Spherical part 18 Recessed part

Claims (7)

A carrier holding a room temperature volatile chemical, a container containing the carrier inside and having a ventilation opening, and a hanging tool for hanging the container,
The container has a substantially plate shape having a front surface and a rear surface. When the incident angle of the wind with respect to the front or rear surface of the container is 90 °, the left and right moments are equal, and when the incident angle of the wind is other than 90 °. Has a shape in which the left and right moments are not equal (note that left and right are the left and right when the container is viewed in plan while standing on the front side of the container).   2. The drug volatilization device according to claim 1, wherein the container has a portion that is thicker than both sides in the width direction, the front surface and the back surface are both symmetrical, and the shapes of the front surface and the back surface are not congruent.   The chemical volatilization device according to claim 2, wherein the container has a relationship of 1≤w / t≤12, where w is a lateral width and t is a maximum thickness. The cold volatile agents, Transfluthrin, metofluthrin, selected from the group consisting of empenthrin and profluthrin etc., pyrethroid vapor pressure ^{0.5 × 10 -3 Pa~5.0 × 10 -3} Pa (25 ℃) The chemical volatilization apparatus in any one of Claims 1-3 containing an insecticide.   The said container is provided with the front part and the back part, and while the said support | carrier is located between this front part and a back part, the ventilation opening part is formed in the said front part and the back part. The chemical volatilization apparatus in any one of.   The chemical volatilization apparatus according to claim 5, wherein one or both of the front part and the back part has a horizontal cross section of an arc shape, a trapezoidal shape, a triangle shape or a corrugated shape.   The hanging tool has a relationship of 0 ≦ y / x ≦ 2, where x is a vertical distance from the upper end to the container, and y is a distance between two attachment portions of the container to which the hanging tool is attached. The chemical volatilization device according to any one of claims 1 to 76.

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