JPS62143629A - Insect control machinery - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention can be used in medical, pharmaceutical, food factories, etc. or their laboratories where pests must not be attracted, as well as in butchers, fishmongers, greengrocers and other food stores, and in the general public. The present invention relates to insect repellent equipment having supporting legs, such as measuring scales, mixers, toasters, and even vending machines used in homes.

Recently, highly accurate automatic electronic scales have come to be used in grocery stores and the like.

However, because these electronic scales generate a certain amount of heat and are warm inside even in winter, they often become nests for cockroaches, various mites, and other pests, posing a hygiene problem. In addition, similar problems occur not only with scales but also with the above-mentioned devices in general.

Therefore, as shown in Fig. 9, the present distributor spread a sheet-shaped pest control material 101 (Special @ No. 58-249000) containing an amide-based repellent, which had already been proposed, on the measuring instrument installation surface 100. By installing the measuring instrument 102 on top of the measuring instrument 102, it is possible to prevent pests from being attracted. Apply sea I-shaped pest control material 101 to this, l, )! l
lk <, and the mites 1' contained in the control material 101
In the system, other chemicals are gradually released in appropriate amounts and have excellent pest control effects over a long period of time, but on the other hand, there are the following problems.

That is, since the pest control material 101 is relatively soft,
On top of that, if you install ai amount + 4r I (12, the stability of 11 door device 102!
If the height of the measuring instrument 102 must be adjusted to keep the measuring instrument 102 horizontal at all times, even if the measuring instrument 102 is initially adjusted horizontally, it may become tilted over time as shown by the dashed line. There is a problem with coming. In other words, since the load applied to each support leg 103 is different, the pest control material 101 becomes deeply dented over time in the part that receives the support leg with a large load, and does not dent so deeply in the part that receives the support leg with a small load. , first 11 quantity 102
Even if you adjust it horizontally, it will gradually become erect.

In addition, when a sheet-like pest control material 101 is laid down as described in item 1, the plasticizer, etc. contained in the pest control material 101 evaporates from both the front and back sides of the pest control material 101, so if it is left for a long time, The pest control material 101 sticks to the installation surface 100 due to the plasticizer etc. removed from the back side, for example -
There is also the problem that when you try to replace it with a new one after a year, it cannot be removed cleanly.

Means for Solving the Problem In order to solve the above-mentioned problem, the present invention provides an insect repellent device equipped with support legs, the support legs being formed by molding a mixture of chlorinated polyethylene and thermoplastic elastomer. The gist of the present invention is to attach a pest control member holding a pest control agent containing an amide repellent.

In this way, when the above-mentioned pest control member is attached to the support leg through which the pest must first pass in order to enter the device, the amide-based pest control member held in the pest control member The repellent reaches the surface of the pest control member and is released by diffusion within the polymer blend resin phase of chlorinated polyethylene and thermoplastic elastomer and migration through the resin interphase.

In particular, chlorinated polyethylene has good affinity with liquid amide repellents and can contain large amounts of amide repellents, so amide repellents are released from the surface of pest control members over a long period of time. continues to be. Therefore, the release of the amide repellent prevents pests from passing through the support legs, cutting off the path of entry into the insect control device, thereby preventing pests from entering the insect control device.

In addition, if the insect control member is attached around the support leg of the insect control device instead of being placed under the support leg as described above, the load on the insect control device will be Since no dents are created in the part that receives the support legs, the installation stability and horizontal maintenance of the equipment are not impaired in any way, and the pest control members do not come into contact with the equipment installation surface, so they do not stick. .

Example Hereinafter, the present invention will be explained in detail with reference to Examples.

FIG. 1 is a front view showing an automatic balance as an embodiment of the insect control device of the present invention.This automatic balance A automatically weighs an object when it is placed on a weighing plate 1. When the pointer 2 moves and the finger scale 3 of the pointer 1 is read, the weight of the object to be weighed can be determined. Support legs 4 are provided at the four corners of the bottom of the case of the automatic balance A, and pest control members 5 are attached around each support leg 4.

As shown in FIG. 2, this support leg 4 has a nut 4 attached to the tip + MWl of the ring j'-H41 protruding from the bottom of the case.
2 is embedded in the synthetic (^1 fat!
1) The height of the legs 4 can be adjusted. Therefore, by adjusting the height of the support legs 4 at the four corners, the automatic balance can be installed horizontally.

The pest control member 5, which is a feature of the present invention, is made by molding a mixture of chlorinated polyethylene and thermoplastic elastomer! 1. j'−7' i F ;% pest control agent containing repellent was retained; in this example, a mixture of chlorinated polyethylene, thermoplastic elastomer, and pest control agent containing amide repellent was retained. It is formed into a plate shape, and a nut 51 is fixed to the center of the plate. By screwing this nut 51 into the threaded rod 41 of the support leg 4, it is attached around the support leg 4. Therefore, the pest control member 5 can be easily replaced by removing the cap 43, unscrewing the old pest control member 5 from the screw rod 41, and screwing in a new one. In this pest control member 5, since the nut 51 is fixed by the adhesiveness of the resin component, there is no fear that the nut 51 will fall off even if the nut 51 is not fixed using an adhesive or the like.

The disk-shaped pest control member 5 as described in item 1 may be attached as is, but it may also be attached with the outer peripheral surface or the entire surface covered with a perforated film or a gas-permeable film, for example. good. When coating in this way, you do not have to get your hands dirty when attaching and replacing it, and by changing the hole size and gas permeability, you can prevent the amide-based repellent from evaporating from the surface.
It has the advantage of being able to adjust the amount. Also, Figure 3 (a)
As shown in FIG. 2, irregularities 52 may be formed on the outer peripheral surface of the disk-shaped pest control member 5. Forming such unevenness 52 has advantages such as making it easier to turn the pest control member 5 due to its anti-slip effect, reducing the amount of dirt on hands, and increasing the amount of amide repellent volatilized due to the increased surface area. . Moreover, instead of embedding a nut, it may be formed into a donut plate shape with a threaded groove 53 cut on the inner circumferential surface as shown in FIG. 3(b). Furthermore, as shown in FIG. 4, the pest control member 5 is formed into a cylindrical shape having an inner diameter slightly larger than the diameter of the screw rod 41 of the support leg 4, and is fitted onto the screw rod 41 of the support leg. Good too. In this way, since there is a gap between the cylindrical pest control member 5 and the screw rod 41, even if the plasticizer or the like evaporates from the pest control member 5, the pest control member 5 remains attached to the screw rod. 41, and therefore the pest control member 5 can be easily attached and replaced.

As mentioned above, the shape and attachment method of the pest control member 5 may be freely determined.

All of the above pest control members are molded from a mixture of chlorinated polyethylene and thermoplastic elastomer mixed with a pest control agent including an amide repellent, and the pest control agent is uniformly distributed inside the member. However, the pest control members used in the present invention are not limited to such materials. For example, lIM combination Q'/IC hollow + i1 effect i of chlorinated polyethylene and thermoplastic elastomer
+1 insect control parts are molded and injected with lt'i and 4 fire pest control agents that contain amide thread repellents, and even cartridge-type insect control agents that can be replaced. can also be suitably used. If such a pest control member is attached, a considerable amount of the pest control agent is released and diffused around the member, thereby preventing pests from approaching.

The above-mentioned chlorinated polyethylene, which is the resin component of the pest control member 5, has a chlorine content of 30 to 45% by weight, and its chemical structure is a terpolymer of ethylene, vinyl chloride, and 2-dichloroethylene. It is composed of a crystalline phase and a rubber phase, depending on the crystallinity of the raw material polyethylene.

The constrained portion, which is a crystalline phase, is a pseudo-lamellar hard phase. Chemically, it has the following structure that shows intermediate properties between polyethylene and polyvinyl chloride.

Comparing the compatibility of the three units of ethylene, vinyl chloride, and 1,2-dichloroethylene with amide repellents by increasing their SP values, there is a large difference in compatibility between the units. A controlled release system is constructed. When this powdered chlorinated polyethylene is mixed with an amide repellent, the latter is very well absorbed by the former, and the crystallinity of the chlorinated polyethylene is reduced. If it is relatively low,
In particular, the repellent is absorbed quickly, and the absorbed powder takes on a granular shape suitable for molding. Therefore, as the chlorinated polyethylene, it is preferable to use one having less crystalline phase, which is a constrained part, or, in other words, having more rubber phase.

The thermoplastic elastomer may be polyolefin-based (e.g., ethylene-propylene polymer), polystyrene-butadiene-based (e.g., styrene-butadiene copolymer), polyvinyl chloride-based (e.g., flexible polyvinyl chloride, polyvinyl chloride-nitrile rubber), etc. 1 Prene, ``L
(vinyl-urethane copolymer), polyethylene-based,
Polyesters, ethylene-ethyl acrylate copolymers, ethylene-vinyl acetate copolymers, syndiotactic 1,2-polybutadiene, and other materials with relatively low melting points are used, especially those with melting points of 100°C or less. is suitable. Such thermoplastic elastomers have a molecular structure (
In particular, the degree of compatibility with repellents and insecticides is influenced by the chemical properties caused by polymer side chains and co-metallic components. In addition, depending on the type of elastomer (block copolymer, graft copolymer, random copolymer, homocopolymer, blend, chemically modified product, etc.), various constrained portions (frozen for hydrogen bonding, crystalline phase,
It is thought that this physical structure controls the retention and release of repellents in various ways.

In general, the rubber phase is a drug-retaining component because the molecules are in a random state, and the binding part forms a densely arranged aggregate of molecules, so it acts as a component that controls the release of the drug. Conceivable. It is also believed that the interface between the polymers created by blending the chlorinated polyethylene and the thermoplastic elastomer forms fine passageways through which the drug migrates.

Further, the amide repellent may be mixed with the chlorinated polyethylene and the thermoplastic polymer, or may be mixed in combination with other insecticides or fungicides. When combining with other insecticides, select an insecticide that dissolves in the repellent, and the repellent will act as a carrier for the insecticide, allowing a small amount of the insecticide to constantly ooze out onto the resin surface. I can do it. At this time, most of the pests will not approach the pest control member 5 due to the repellent effect, but the small number of pests that come close will be killed by the insecticide. Ru.

Amide repellent +! : L' (mu, 1. For example, N, N
-diethyl-m-1-ruamide, N'/'fruaceto'j'nilide, N,N-diethyl-m-1-ruamide, N,N-diethyl-m-1-ruamide,
etc., which may be used alone or in combination with IJ, , I
−? Used in combination with JM.

In addition, as an insecticide, for example, 3-allyl-2-methylcyclopent-2-en-4-one-1-yl dp-
cis/1-lansu chrysanthemate, 3-allyl-2
-Methylschiff 1:1 pent-2-en-4-one-1-
Ilu d-cis/l-lansu chrysanthemum 1~,
d-3-allyl-2-methylcyclopent-2-en-4-one-1-yl-d-)lansu chrysanthemer-1
・,3-allyl-2-methylcyclopent-2-ene-
4-one-1-yl-d-)lansu-chrysanthemate, 5-benzyl-3-furylmethyl-d-cis/trans-chrysanthemate, 5-(2-propargyl)-3
-Furylmethyl chrysanthemate, 3-phenoxybenzyl-2,2-dimethyl-3-(2',2'-dichloro)vinylcyclopropanecarpoxylate, 3-phenoxybenzyl-d-cis/trans-chrysanthemate , 0.0-isopropoxyphenylmethylcarbamate, 0.0-dimethyl-〇-(3-methyl-4-nitrophenyl)thionophosphate, 01O-diethyl-2
-isopropyl-4-methyl-pyrimidyl-6-thiophosphate, N-(3,4,5,6tetrahydrophthalimido)-methyl-d/-cis/trans-chrysanthemate, 0.0-dimethyl-3- (1,2-dicarpoethoxyethyl)-dimethylphosphine 1-1α-isopropyl-4-chlorophenylacetate, O-(4-
Examples include pro%-2,5 dichlorophenyl)-0,0-dimethylphosphorothioate. Also,
As a bactericidal agent, 2,4.4'-)lichloro2'-hydroxydiphenyl ether, 2,3.5.6-te1
- rough 10+-4-(methylsulfonyl)pyridine,
Alkylbenzylmethylammonium chloride, benzylmethyl-2-(2-(p-1,'1.3,3.-
Tetramethylbutylphenoxy)ethoxy]ethyl emmonium chloride, 4-isopropyltroborone, N
, N-dimethyl-N-phenyl-N-(fluorodichloromethylthio)sulfonamide, 2-(4'-thiazolyl)benzimidazole, N-(fluorodichloromethylthio)phthalimide, 6-acetoxy-2,4-
Dimethyl-m-dioxyethylene bis(dithiocarbamic acid) zinc, ethylene bis(dithiocarbamic acid) manganese, zinc maneb complex compound, bis(dimethyldithiocarbamic acid) ethylene bis(dithiocarbamic acid) dizinc, bis(dimethylthio carbamoyl) disulfide,
Crotonic acid 2,6-dini-1-rho-4-octylphenyl reactive isomer mixture, N-)dichloromethylthiotetrahydrophthalimide, 2,3-dicyano-1,4-dithioanthraquinone, 2,4-dichloro-6-(p -chloroaniline)-s-l riazine, 5-n-butyl S'-
p-tertiarybutylbenzyl, N-3-pyridyldithiocarbonimidate, N-(3',5'-dichlorophenyll-1,2-dimethylchloropropane dicarboximide, bis(chromicophenyl)trichloroethanol, 6' -Methylquinoxaline-2,3-dithiocarbon-1, tetrachloroisophthalonitrile, methyl-1-(butylcarbamoyl)-2-benzimidazole carbamate, plasticidin S-pendylaminobenzenesulfonate, streptomycin hydrochloride, kasugamycin Examples include hydrochloride, cycloheximide, and the like.

Amounts of chemicals such as amide repellents, insecticides, fungicides, etc. as mentioned above 3) B, L, Generally, if the total M is combined with 1 weight % 121 or more, it will be effective for effective pest control. However, in practical terms, it is appropriate to set the range of °ζ 5 to 20% by weight in consideration of sustainability of effects, cost, etc. In addition, the amount of chlorinated polyethylene should be increased or decreased depending on the amount of Pc; , thermoplastic 4 (
1 polymer 4.1 and the remainder M is suitable.

Incidentally, if necessary, a suitable amount of filler such as aluminum hydroxide may be added.

If the pest control member 5 as described above is attached around the support leg 4, the amide repellent and other chemicals released from the pest control member 5 will cause pests to pass through the support leg 4 and reach the automatic balance. Since intrusion into the case of A is prevented, nests will not be built inside the automatic balance A. However, in order to more reliably prevent the intrusion of pests, it is necessary to remove gaps etc. that may become entry paths. Needless to say, it is more desirable to attach pest control members to all of the insects. Therefore, in the automatic balance A of this embodiment, as shown in FIG. In addition to preventing the intrusion of
As shown in FIG. 6, a cylindrical pest control member 7 is fitted to the root of the electric cord 9 to prevent pests from entering through the cord insertion hole 11. . In this case, instead of the cylindrical pest control member 7, a split cylindrical pest control member 7a having a C-shaped cross section as shown in FIG. 7 may be attached. Such a split tube-shaped pest control member 7a
The advantage of using this is that it can be press-fitted onto the support shaft 6 or the electric cord 9 with one touch while elastically expanding the crack. Also,
Bush-shaped pest control member 7b as shown in FIG.
into the cord insertion hole 11, and insert the electric cord 9 into the member 7.
It may also be inserted through b. Furthermore, if the measuring instrument is provided with a storage section for storing the electrical cord 9, the lid plate and wall plate of the storage section may be molded with a mixture containing an amide-based repellent as described above. .

Next, an experimental example will be given.

1 (i (Experimental Example 1) Chlorinated polyethylene [Product name: Daisorasoku H-135
．． Osaka Soda Co., Ltd.] with repellents and other chemicals, mixed with a vertical granulator to form suitable granules, and mixed with thermoplastic elastomer to form a cylinder (outer diameter: 1
3 mm, inner diameter: 10 mm, length: 15 mm), five types/classes of pest control members a''-e having the compositions shown in Table 1 below were prepared.

Table 1 The results of measuring the drug residual rate over time for these pest control members a- and -e are shown in Table 2 below.

The residual rate was determined by extracting the drug with acetone, quantifying it by gas chromatography, and calculating the percentage with respect to the quantitative value at the start of the test.

Table 2 It can be seen from Table 2 that the release of chemicals is controlled over a long period of time in all pest control members.

(Experiment Example 2) Q A material with the same composition as the pest control member C of Experiment Example 1 was made into a disk shape (outer diameter: 30 m) that could hold the naso 1- in the center.
m, thickness: 3 mm), then fit a nut into it,
A pest control member f for attaching support legs was produced.

This pest control member f was attached to the support leg of a measuring instrument as shown in FIG. 2, and a pest control efficacy test was conducted in the following manner.

That is, 50 adult German cockroaches were placed in a 1.5 m x 1.5 m plastic vat containing water and food.
Fifty larvae were released and left day and night to become accustomed to the pigeons. In this buff 1-, the pest control member f of the present invention is attached to the support leg in total 1; 1 device A and the AI mouthpart 13 that is not attached are each placed in an equal amount of 11 times from water and food. ′
The scale was taken out at 31-1 f&, and the number of German cockroaches hiding inside the scale, on the legs, under the mold, and at the bottom was investigated. The results are shown in Table 3.

(Leaving space below) Table 3 λ 1 As is clear from the above explanation, according to the insect control device of the present invention, the pest control member that releases the repellent serves as a passageway for pests to enter the insect control device. Since it is attached around the support leg, pests are prevented from passing through the support leg and are prevented from entering the insect control device. Therefore, no pest nests are created within the insect control device, and a sanitary environment can be maintained. Furthermore, this pest control member is made by molding a mixture of chlorinated polyethylene and thermoplastic elastomer, and holds a pest control agent containing chlorinated polyethylene and an amide repellent. Because of its good affinity with insect repellents, it can contain a large amount of amide repellents and can be released in a controlled manner over a long period of time, so its pest control effect is remarkable. and lasts for a long time.

Moreover, since the pest control member is attached around the support leg of the insect control device without being placed under it, the installation stability, horizontal direction, and visibility of the device will not be compromised. Furthermore, since the pest control member does not come into contact with the equipment installation surface, it is possible to eliminate the problem of the pest control member sticking to the equipment installation surface due to volatilization of plasticizer A, etc., making it difficult to replace.

[Brief explanation of drawings]

Fig. 1 is a front view showing a measuring device as an embodiment of the insect control device of the present invention;
3(a), (r, I) are perspective views showing other examples of pest control members, FIG. 4 is an enlarged sectional view of main parts of other embodiments of the present invention, and FIGS. 5 and 6. The figures are a partial enlarged sectional view of the embodiment shown in FIG. 1, FIG. 7 is a perspective view showing still another example of the pest control member, and FIG. 8 is a partial enlarged sectional view of still another example of the present invention. , FIG. 9 is an explanatory diagram of a conventional example. 4... Support legs, 5, 7.7a, 1b... Pest control members.

Claims (1)

[Claims] (1) An insect repellent device equipped with support legs, around which an insect repellent made of a mixture of chlorinated polyethylene and thermoplastic elastomer and containing an amide repellent is held. An insect control device characterized by having a pest control member attached thereto.