JP6904693B2 - Chemical volatilizer - Google Patents

Description

The present invention relates to, for example, a chemical volatilizer that volatilizes a chemical for controlling flying pests at room temperature.

In recent years, in order to control flying pests such as mosquitoes, a room temperature volatilizing agent is held on a carrier and suspended indoors or outdoors to continuously volatilize the agent in a space, which has an insect repellent effect. It has been known. These use agents such as transfluthrin and metoflutrin to prevent flying pests from invading the house. Although these preparations use room temperature volatilizing chemicals, since the chemicals volatilize naturally, the volatilization amount fluctuates due to variations in wind speed, temperature, wind direction, etc., and the effects tend to vary.

Therefore, Patent Document 1 proposes a drug disperser in which a drug holder is rotatably stored in a container and the drug holder is rotated by the force of air. However, when the drug holder is housed in the drug device, the angle of rotation may be limited by the container, and the device itself may become large due to further rotation. In addition, the drug-holding body is not always facing the front with respect to the direction in which the wind blows, and the wind does not always effectively hit the drug-holding body. Therefore, there is a problem that a high amount of volatilization cannot always be obtained.

Japanese Unexamined Patent Publication No. 2014-135910

An object of the present invention is to provide a chemical volatilization apparatus capable of obtaining a high volatilization amount regardless of the wind direction.

The present inventors have completed the present invention as a result of repeated diligent studies to solve the above problems. That is, the drug volatilization apparatus of the present invention is as follows.

(1) A carrier holding a room temperature volatilizing agent, a container containing the carrier and having a ventilation opening, and a hanging tool for suspending the container are provided, and the container has a front surface and a back surface. It is plate-shaped, and when the angle of incidence of the wind on the front or back of the container is 90 °, the left and right moments are equal, and when the angle of incidence of the wind is other than 90 °, the left and right moments are not equal. A drug volatilizer that has (however, left and right means the left and right when standing on the front side of the container and looking at the container in a plan view).
(2) The drug according to (1), wherein the container has a portion 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. Volatilizer.
(3) The drug volatilization apparatus according to (2), wherein the container has a relationship of 1 ≦ w / t ≦ 12 when the width is w and the maximum thickness is 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 drug volatilizer according to any one of (1) to (3), which comprises a pyrethroid insecticide.
(5) The container includes a front portion and a back portion, the carrier is located between the front portion and the back portion, and ventilation openings are formed in the front portion and the back portion (1). ) To the drug volatilization apparatus according to any one of (4).
(6) The drug volatilization apparatus according to (5), wherein one or both of the front portion and the back portion has an arc-shaped, trapezoidal, triangular or corrugated horizontal cross section.
(7) The hanging tool is 0 ≦ y / x, where x is the vertical distance from the upper end to the container and y is the distance between the two mounting portions on the upper surface of the container to which the hanging tool is mounted. The drug volatilization apparatus according to any one of (1) to (6 ), which has a relationship of ≦ 2.

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

It is a front view which shows the drug volatilization apparatus which concerns on one Embodiment of this invention. It is sectional drawing of the drug volatilization apparatus of FIG. It is explanatory drawing for demonstrating the dimension of the string which suspends a container in FIG. It is a top view of the container in the drug volatilization apparatus of FIG. (A) to (c) are explanatory views showing the operation of the drug volatilization apparatus. (A) to (c) are explanatory views showing the action of the rotational moment on the drug volatilizer. (A) to (d) are cross-sectional views showing another example of the container in the present invention, respectively. (A) and (b) are explanatory views which show the method of attaching the hanging string to a container. (A) and (b) are explanatory views which show the method of attaching the hanging member to a container. It is explanatory drawing which shows the test method which tests the influence of the shape of a container with respect to the wind direction.

Hereinafter, the drug volatilization apparatus according to the embodiment of the present invention will be described with reference to the drawings. 1 and 2 show the usage state of the drug volatilization apparatus 1 of the present embodiment. The drug volatilization device 1 is used indoors or outdoors by suspending a container 3 containing a carrier 2 holding a room temperature volatilizing 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 also formed on the back surface (see FIG. 2).

As shown in FIG. 2, the container 3 is a substantially plate-like body including a front portion 3a and a back portion 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 portion 3a and the back portion 3b are integrated with each other at least at their side edges, and a space 6 for ventilation is formed inside. The ventilation openings 4 and 4'are provided in the front portion 3a and the back surface portion 3b in the same shape and at the same position so as to maintain air permeability from the front surface to the back surface of the container 3. By providing such ventilation openings 4, 4', the room temperature volatilizing agent held on the carrier 2 can be volatilized from the ventilation openings 4, 4'.
The shape and formation position of the ventilation openings 4 and 4'are not particularly limited as long as the air permeability is ensured between the front portion 3a and the back portion 3b and the room temperature volatilizing agent can be efficiently volatilized. It can be designed in the shape and position of, for example, it may be provided on the side surface of the container 3, but in order to increase the amount of volatilization of the room temperature volatilizing agent, the total of the ventilation openings 4, 4'with respect to the surface area of the container 3 The larger the area ratio, the more preferable.

The container 3 is integrated by overlapping or abutting the front portion 3a and the back surface portion 3b molded as separate members at least at the side edge portions, but the container 3 may be integrally molded. A plurality of holding members 8a and 8b are projected on the inner surfaces of the front portion 3a and the back portion 3b, and the holding members 8a and 8b are butted against each other with the carrier 2 sandwiched between them and integrated. Will be done.
The material constituting the container 3 (front portion 3a and back portion 3b) is not particularly limited, and can be formed of, for example, various plastics, metals, glass, paper, wood, ceramics, and the like.

For the integration of the front portion 3a and the back portion 3b, for example, a method using a locking member, a method by heat fusion, a method using an adhesive or the like can be used. Examples of the method using the locking member include 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 surface portion 3b, a recess is provided on the other, and the claw portion is locked in the recess. .. The front portion 3a and the back portion 3b may be detachably integrated by using the above-mentioned locking member or the like.

Examples of the carrier 2 holding the room temperature volatilizing agent include a net formed of a fiber material. This net has openings that provide useful vents for the room temperature volatilizing agent to volatilize. Specifically, it is possible to use a yarn knitted using a technique such as lace knitting or knitting using short fiber or long fiber yarn.

Examples of the material 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 mixed and used. Of these, polyethylene terephthalate, polypropylene, polybutylene terephthalate, and polyethylene are particularly preferable.
The fibers may also contain conventionally known additives such as fungicides, pigments, ultraviolet absorbers, and fragrances.

The ratio of the opening (vent hole) of the net is not particularly limited, but the ratio of the total area of the opening portion to the total area of the net is preferably 5 to 80%, preferably 10 to 50%. If the opening ratio is too small, the volatilization of the room temperature volatilizing agent held on the yarn may decrease, while if the opening ratio is too large, the weight of the yarn per unit area (that is, the filling) Tends to decrease, and the amount of the room temperature volatilizing agent retained tends to decrease.

The room temperature volatilizing agent held in the net is a chemical that can volatilize at room temperature, and is a variety of pest control agents (insecticides, repellents, etc.), air fresheners, deodorants / deodorants, fungicides, fungicides, etc. It may be appropriately selected from the various agents according to the purpose, and is not particularly limited. The room temperature volatilizing agent may be only one kind or two or more kinds.

Examples of the pest control agent include various insecticides such as organophosphorus, carbamate, and pyrethroid, repellents, and insect growth regulators. Examples of pest control agents include, for example, organophosphorus pesticides such as DDVP and diazinon, carbamate pesticides include propoxers and the like, and pyrethroid pesticides include phthalthrin, prarethrin and tefluthrin. , Transfluthrin, metoflutrin, dimefluthrin, mepafluthrin, profluthrin, empentrin, terraresulin and the like. Of these, transfluthrin, metoflutrin, empentrin, and profluthrin are preferred. In addition, other pest control agents include plant essential oils, terpenes, and isomers and derivatives thereof.

Examples of the fragrance include lavender oil, jade, ryuenka, abies oil, citronellal oil, eucalyptus oil, fennel oil, garlic oil, ginger oil, grapefruit oil, lemon oil, lemongrass oil, nutmeg oil, and hacker. Essential oils such as oils, orange oil, terepine oil, sage oil, pinen, limonene, linalool, geraniol, citronellal, borneol, benzyl alcohol, anis alcohol, anetol, eugenol, aldehyde, citral, citronellal, crocodile, carboxylic, ketone, menton , Acetphenone, coumarin, cineole, ethyl acetate, octyl acetate, linalool acetate, butylcyclohexyl acetate, butylcycloheptyl acetate, isopropyl isobutyrate, allyl caproate, ethyl benzoate, methyl cinnate, methyl salicylate and the like. ..

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, and saflor. Examples thereof include citronella oil and lemongrass oil.

Examples of the bactericide include IPMP (isopropylmethylphenol), PCMX (p-chloro-m-xylenol), AIT (allyl isothiocyanate), hinokitiol, stabilized chlorine dioxide and the like.

Further, the room temperature volatilizing agent can contain various additives, if necessary, as long as the effects of the present invention are not impaired. Examples of the additive include an efficacy enhancer, a volatilization rate improver, a stabilizer and the like. The additive may be only one kind or two or more kinds.

Examples of the volatilization rate improving agent include phenethyl isothiocyanate and dimethyl hymituxate. Examples of the stabilizer include 3,5-di-t-butyl-4-hydroxytoluene, 3-t-butyl-4-hydroxyanisole, mercaptobenzimidazole, dilauryl-thio-di-propionate, 2,2'. -Methylene-bis- (6-t-butyl-4-methylphenol), 4,4'-methylene-bis- (2,6-di-t-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 thereof include α-tocopherol, ascorbic acid, and erythorbic acid.

The method for retaining the room temperature volatilizing agent in the carrier 2 is not particularly limited. For example, a room temperature volatilizing agent is dissolved in a solvent to prepare a solution, and the carrier (net) is immersed in the solution to cause the room temperature volatilizing agent. The method of impregnating the net with the room temperature volatilizing agent by spraying or dropping the solution or the original substance of the room temperature volatilizing agent (the drug itself) onto the net, the method of impregnating the net with the room temperature volatilizing agent A method or the like can be adopted. Further, if necessary, the solvent used may be removed by impregnating with a room temperature volatilizing agent and then drying or the like. Further, each of the above operations for holding the room temperature volatilizing agent can be repeated until the holding amount of the room temperature volatilizing agent reaches a desired amount.

The solvent for preparing the solution of the room temperature volatilizing agent is not particularly limited, but for example, hydrocarbons such as water, naphthen, kerosene and paraffin, glycerin, propylene glycol, dipropylene glycol, hexylene glycol and methanol. , Isopropanol, 1-octanol, 1-dodecanol and other alcohols, acetone, acetophenone and other ketones, dihexyl ether, diethylene glycol diethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monobutyl ether, dipropylene glycol dimethyl ether and other ethers. , Ethers such as dioctyl adipate, diethyl malonate, diethyl phthalate, and one or more of xylene, chlorsen, silicone oil and the like.

The retention amount of the room temperature volatilizing agent (drug) is usually appropriately determined so as to exert a desired effect (volatilization and effective period) in consideration of the type of the agent and the like. Specifically, a maximum amount of a room temperature volatilizing agent of about ^{600 g / m 2} can be retained per unit area of the carrier 2.

The carrier 2 may be held in a frame (not shown). If the frame holding the carrier 2 is a cartridge type, when all or almost the thermovolatile agent is volatilized and the efficacy is lost or reduced, the frame after use can be replaced with a new frame. , Again, excellent effects can be exhibited.

As shown in FIGS. 1 and 2, the container 3 is suspended from a hook-shaped fixture 9 by a hanging string 5. The hanging string 5 is composed of a single string in which both ends are tied to form a ring.
At this time, as will be described later, the hanging string 5 needs to rotate the container 3 so that the front surface of the container 3 can easily face upwind with respect to the wind. Specifically, as shown in FIG. 3, one hanging string 5 is made into a triangle to suspend the container 3, and the vertical distance from the fixture 9 to the container 3 is x, two or one string. When the distance between the two string attachment portions on the upper end surface of the container to which each of the 5 is attached is y, it is preferable to have a relationship of 0 ≦ y / x ≦ 2. This makes it easier for the container 3 to rotate upwind according to the wind direction. More preferably, y / x is 0.01 or more. When y / x is 0, that is, when y = 0, it means that it is suspended by one string. Even when y = 0, the container is rotated by the wind and stops rotating at a position where the angle of incidence of the wind on the front or the back is 90 °.

Further, the hanging string 5 preferably has a distance (that is, the vertical distance x) between the container 3 and the fixture 9 of 1 mm or more.
Further, the hanging string 5 preferably has a diameter of 50 mm or less and is made of a relatively soft material. If a rigid string is used, the container 3 becomes difficult to rotate. Specifically, the degree of softness is such that when a string having a length of 15 cm is erected vertically on the floor, at least the upper end of the hanging string bends to the extent that it contacts the floor surface. It is good that the entire surface may come into contact with the floor surface.
Examples of the material of the hanging string 5 include fiber threads such as multifilament and monofilament, resin, and elastomer, but the material is not particularly limited. As the hanging string 5, the container 3 may be suspended by two strings in addition to one string tied in a ring shape.

The hook-shaped fixture 9 described above is attached to a ceiling surface or the like, but it is not a hook-shaped fixture, and even if the hanging string 5 is tied to a clothesline, a balcony, a handrail of stairs, or the like outdoors, for example. Well, no particular restrictions,

FIG. 4 is a plan view for showing the shape of the container 3 in the present embodiment. As shown in the figure, the container 3 has a substantially plate-like shape having a front portion 3a and a back portion 3b, and is thicker than both side portions in the width direction (central portion L in the embodiment of FIG. 4). The front and back are both symmetrical. The upper portion of the curved front portion 3a is closed by the upper surface portion 3c that serves as a lid. The upper surface portion 3c is integrally molded with the front surface portion 3a.
Specifically, the container 3 has a front portion 3a and a back portion 3b that are overlapped and integrated on both side portions, and the front portion 3a has a convex arc shape having the largest thickness of the central portion L in the width direction. It is formed. The outer surface of the back surface portion 3b is formed to be flat.
The symmetrical shape described above includes a case where the surface is flat, but in the present invention, the front surface and the back surface must not be flat surfaces at the same time.

As shown in FIG. 4, the container 3 in which the front portion 3a and the back portion 3b are joined is preferably 1 ≦ w / t ≦ 12 when the width is w and the maximum thickness is t. Further, it is preferable that the shapes of the front surface and the back surface of the container are not congruent. Not congruent means that they are not three-dimensionally identical. If they are congruent, the front portion 3a does not face upwind, which is not preferable. Specifically, for example, a cylindrical container has w / t = 1, but since the shapes of the front surface and the back surface are congruent, the left and right moments are equal and excluded from the shape of the container 3 in the present embodiment. .. In a cylindrical container, the surface that receives the wind is small, and if the surface that receives the wind is large, the device 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 3c of the container 3. The mounting holes 10 and 10 are suitable for, for example, passing one string through these mounting holes 10 and 10 and connecting both ends to form a ring. Further, instead of the mounting holes 10 and 10, a hook-shaped protrusion for connecting or locking the hanging string 5 may be used.

When the container 3 in the present embodiment has the above relationship, the front portion 3a always faces upwind (the direction in which the wind blows is indicated by the arrow K) regardless of the wind direction, so that the wind invades from the ventilation opening 4. It becomes easier to do so, and the amount of volatilization of the room temperature volatilizing agent increases. That is, in the stationary state shown in FIG. 5A, the container 3 rotates in the direction in which the wind blows (indicated by the arrow K) when the wind blows (in the figure (b)), and the front portion thereof. 3a faces upwind (Fig. (C)).
As long as the above relational expression is satisfied, the entire surface of the front surface portion 3a does not have to be arcuate, and may be a part thereof. Further, in the present embodiment, the front portion 3a of the container 3 has a shape facing upwind, but the back portion 3b may have a shape facing upwind.

As described above, the container 3 rotates so that the front portion 3a faces upwind because the left and right moments of the container 3 when the angle of incidence of the wind on the front or back of the container 3 is 90 °. This is because they have equal shapes. In other words, the container 3 rotates because the left and right moments are not equal when the angle of incidence of the wind is other than 90 °, but stops rotating when it reaches a position of 90 ° with respect to the angle of incidence of the wind. Therefore, the front portion 3a of the container 3 always faces upwind.
Here, the angle of incidence of the wind, that is, the angle of the wind blowing toward the front or the back of the container means the angle of the wind with respect to the width direction indicated by the reference numeral w in FIG. Further, the moment means a moment of force, and indicates a quantity representing the magnitude of the force for rotating an object.

Specifically, it will be described with reference to FIGS. 6 (a) to 6 (c). As shown in FIG. 6A, when the angle of incidence 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 is a component force and a vertical component force. Here, let the vertical component forces be Fr and Fl. Further, assuming that the distances from the center of gravity (G) of the container 3 are Lr and Ll, the moments for rotating the volatilizer are counterclockwise moments = Fr × Lr, respectively.
Clockwise moment = Fl x Ll
Will be. Note that clockwise means clockwise when standing on the front 3a side of the container 3 and looking at the container 3 in a plan view, and counterclockwise means when standing on the front 3a side of the container 3 and looking at the container 3 in a plan view. Counterclockwise.
Here, Lr = Ll, but since Fr> Fl from the inclination of the front portion 3a of the container 3, Fr> Fl.
(Fr × Lr)> (Fl × Ll)
Relationship is established. Therefore, a counterclockwise moment acts to rotate the container 3 counterclockwise (counterclockwise).
The reason why Fr> Fl will be described with reference to FIG. 6A. Fr and Fl are not single components, respectively, Fr is the sum of the vertical components of the wind force applied in region A, and Fl is the sum of the vertical components of the wind force applied in region B. Shown. The regions A and B are separated by a vertical line segment passing through the center of gravity G of the container 3 and a line intersecting with the surface of the container 3. The surface areas of the regions A and B orthogonal to the direction of the wind are A> B, so that the vertical component Fr applied to the entire region A is larger than the vertical component Fl applied to the entire region B.

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

On the other hand, as shown in FIG. 6C, in the case of the container 3'having the flat front portion 3a'(however, 3a'and 3b' are not congruent), the wind is incident on the front portion 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 the arrow Fs). .. Therefore, the moment is counterclockwise (counterclockwise)> clockwise (clockwise) when the container 3'is viewed from the front portion 3a'side, and the container 3'rotates counterclockwise (counterclockwise). , The rotation stops at the position where the left and right moments are balanced (the position where the force Fs disappears).

In the present invention, the shape of the front portion 3a or the back portion 3b of the container 3 is not limited to the above-mentioned arc shape, and has a portion having a thickness larger than that of both side portions in the width direction, and the front surface and the back surface. Is preferably symmetrical, and more preferably satisfies the above relational expression, that is, the condition that the relationship of 1 ≦ w / t ≦ 12 and the shapes of the front surface and the back surface of the container are not congruent. For example, as shown in FIGS. 7A to 7C, the horizontal cross section may be a trapezoidal front portion 31a, a triangular front portion 32a, a corrugated front portion 33a, or the like.
FIG. 7D shows ribs 15 and 15 projecting from both sides of the front surface, respectively. The ribs 15 and 15 may be provided over the entire length of the container 3 in the vertical direction, or may be only a part thereof. Further, the rib 15 is not limited to both sides, and ribs may be provided at a plurality of places. This is because the surface area that can receive the wind with a certain width (length) can be increased.

The method of attaching the hanging string 5 to the container 3 is not limited to the methods shown in FIGS. 3 and 4, and various methods can be adopted. For example, as shown in FIGS. 8A and 8B, the hanging string 5 may be hooked on the hook-shaped hooking portion 7 to tie both ends. The hooking portion 7 shown in FIGS. 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 in a substantially U shape, but is not limited thereto.
Further, instead of the hanging string 5, a hanging member 5'as shown in FIGS. 9A and 9B may be used. For the hanging member 5', for example, a wire rod such as plastic, elastomer, metal or other hanging member can be used. A locking portion 16 is provided at one end of the hanging member 5, 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 hanging member 5, and 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 hanging member 5 is attached in a loop shape.
The hanging string 5 and the hanging member 5'shown in FIGS. 8 (a) and 8 (b) and 9 (a) and 9 (b) all have the above-mentioned relationship of 0 ≦ y / x ≦ 2 (see FIG. 3). ) Is preferable.

The chemical volatilization apparatus 1 of the present embodiment is used by being suspended indoors or outdoors, for example. When used in this way, the container 3 rotates and faces upwind according to the wind direction, so that a high amount of volatilization can be obtained. Therefore, for example, a building where flying pests such as mosquitoes and flies invade. It is effective in controlling pests if it is hung at the doorway or an opening such as a window.
Further, for example, it is possible to easily perform fragrance, deodorization, etc. in the toilet or the room. Further, when the chemical volatilization apparatus of the present invention is arranged in front of a blowing means such as a blower or a fan, the volatilization of the room temperature volatilizing chemical can be further enhanced by blowing air.

Hereinafter, since the shape of the container 3 has been tested, the test results will be specifically described, but the present invention is not limited to the following test examples.

(Test example)
FIG. 10A shows the container 13 used in the test. This container 13 is made by processing a plastic plate into a tubular shape, and has no upper and lower lids. The front surface 13a of the container 13 has an arc shape having predetermined dimensions shown in Table 1, and the back surface 13b is flat. The aperture ratio of the front surface 13a and the back surface 13b (the ratio of the area of the ventilation opening to the total area) is 10%.
Regarding the container 13, the sample No. having specifications different in dimensions w, t, and h shown in FIG. 10 (a). 1 to 10 were prepared. The container 13 is hung by a string 5, and wind (indicated by arrow K) is applied to the container 13 from a blower (household fan) (not shown), and the front surface 13a or the back surface 13b of the container 13 is in the direction of the wind (upwind). I checked whether it was suitable for. At this time, as shown in FIG. 10B, the blower was installed at the positions of 0 °, 45 °, 90 °, and 135 ° with respect to the container 13, 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 back surface 13b of the container 13 faces the direction in which the wind comes.
X: The container 13 rotates and does not face the direction in which the wind comes, or the container 13 rotates continuously due to the wind.

The test results are shown in Table 1.

Sample No. Regarding 1, 2, 5 to 10, the following points will be further clarified.
(A) When the angle of incidence of the wind on the container 13 is 0 °, when the container 13 is viewed in a plan view while standing on the front surface 13a side of the container, a counterclockwise moment is added and a clockwise moment is added. Is 0, the container 13 rotates counterclockwise, and the front surface 13a faces the direction in which the wind comes.
(b) When the angle of the wind with respect to the container 13 is 45 °, (counterclockwise moment)> (clockwise moment) when the container 13 is viewed in a plan view while standing on the front surface 13a side of the container. The container 13 rotates counterclockwise so that the front surface 13a faces the direction in which the wind comes.
(C) When the angle at which the wind comes to the container 13 is 90 °, when the container 13 is viewed in a plan view while standing on the front surface 13a side of the container, the left and right moments are equal, so that the container 13 does not rotate. The front surface 13a of the container 13 remains oriented in the direction of the wind.
(D) When the angle of incidence of the wind on the container 13 is 135 °, (counterclockwise moment) <(clockwise moment) when the container 13 is viewed in a plan view while standing on the front surface 13a side of the container. The container 13 rotates clockwise so that the front surface 13a faces 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 width and t is the maximum thickness) are the front surfaces of the container 13. It was confirmed that 13a was oriented in the direction of the wind and was not affected by the wind speed.
On the other hand, in sample No. 3, since w / t exceeds 12, the container 13 rotated and did not face the direction in which the wind came, especially when the wind speed was high. Further, since the thickness t of sample No. 4 is 0, the left and right moments are equal, and the container 13 rotates and does not face the direction in which the wind comes, regardless of the angle, especially when the wind speed is high. Or, it will rotate continuously due to the wind.

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

1 Chemical volatilizer 2 Carrier 3 Container 3a Front 3b Back 3c Top 4, 4'Ventilation opening 5 Hanging string (hanging tool)
5'Hanging member (hanging tool)
6 Spaces 8a, 8b Holding members 9 Fixtures 10 Mounting holes 13 Containers 15 Ribs 16 Locking parts 17 Spherical parts 18 Recesses

Claims (5)

A carrier holding a room temperature volatilizing agent, a container containing the carrier and having a ventilation opening, and a hanging tool for suspending the container are provided.
The container has a substantially plate shape having a front surface and a back surface, has a front surface portion and a back surface portion, has a portion thicker than both side portions in the width direction, and both the front surface and the back surface are symmetrical. and front and back shape is not congruent, the width w, the maximum thickness when the t, have a relationship of 1 ≦ w / t ≦ 12,
A plurality of sandwiching members are projected on the inner surface of the front surface portion and the inner surface of the back surface portion, and the sandwiching member projecting on the inner surface of the front surface portion and the sandwiching member projecting on the inner surface of the back surface portion. The members are abutted and integrated with the carrier sandwiched between them in a fixed state.
A drug volatilizer that is characterized by this. 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 drug volatilizer according to claim 1, which comprises an insecticide. The drug volatilization apparatus according to claim 1 or 2, wherein the ventilation opening is formed in the front portion and the back portion. The drug volatilization apparatus according to claim 3, wherein one or both of the front portion and the back portion have an arcuate, trapezoidal, triangular or corrugated horizontal cross section. The hanging tool has a relationship of 0 ≦ y / x ≦ 2 when the vertical distance from the upper end to the container is x and the distance between the two mounting portions of the container to which the hanging tool is attached is y. The drug volatilization apparatus according to any one of claims 1 to 4.

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