JP7325810B2 - bug trap - Google Patents

Description

The present invention relates to an insect trap for catching insects such as wasps.

Conventionally, as a bee catcher, for example, an attracting liquid for attracting bees is stored inside a cup-shaped container, and a lid having an introduction hole for introducing bees is attached to the upper part of the container. are known (see Patent Documents 1 and 2, for example).

The cover of the bee trap disclosed in Patent Document 1 has two introduction holes spaced apart from each other, and a roof is provided above them. In addition, one introduction hole is formed in the cover of the bee catcher disclosed in Patent Document 2. The lids of these Patent Documents 1 and 2 are colored.

In addition, Patent Document 3 discloses an insect trap, in which a lid having an introduction hole is attached to the upper part of the container of this insect trap. are provided in a state where they are combined so as to be orthogonal to each other. An attractant container containing an attractant is provided in the middle portion of the yagura board in the vertical direction.

Japanese Patent No. 4793984 Japanese Patent No. 6184682 Japanese Utility Model Publication No. 62-35336

By the way, since bees are pests that may harm humans, it is desired to further improve the bee trapping effect of bee traps. In this regard, in Patent Documents 1 and 2, since the attractant is contained in the container, it is possible to attract the bees, and once the bees enter the introduction hole, it is difficult to escape to the outside again. However, according to the study of the inventors of the present application, some of the bees attracted by the attractants of Patent Documents 1 and 2 fly around the bee catcher, but cannot find the introduction hole, giving up intrusion and flying. It turns out that some bees leave. In such a case, it is desired to improve the bee trapping effect not only by the attraction effect of the attractant but also by the structure of the bee trap itself. Since it is premised that the bees enter the introduction hole, bees that do not attempt to enter the introduction hole may pass over the trap and may not be caught.

On the other hand, in the insect trap of Cited Document 3, since a yagura board is provided above the introduction hole, bees that fly horizontally above the introduction hole are caught by colliding with the yagura board and dropping them. becomes possible. However, in Cited Document 3, an attractant container is provided on the yagura board, and insects are guided to the yagura board by the attraction effect of this attractant. cannot be captured. In this way, it is thought that there are bees that cannot be caught even though they are attracted to the attractant. Note that Cited Document 3 does not include the idea of accommodating an attractant in the insect trapping container, and it is unclear whether the yaguraita would be effective even if the attractant was accommodated in the insect trapping container.

The present invention has been made in view of the above points, and its object is to improve the trapping effect of an insect trap, particularly to catch bees attracted by an attractant and approaching the trap. To improve the catching effect.

In order to achieve the above object, in the present invention, a collision plate is provided above the container, and by providing a difference between the color of the collision plate and the color of the upper part of the container, not only the attraction effect of the attractant but also A high attraction effect is also obtained by the difference in color.

A first invention comprises a trapping container having an insect introduction hole formed in the upper portion thereof and containing an insect attractant therein, and a collision plate provided to extend vertically above the introduction hole. , wherein the impingement plate includes a first impingement plate and a second impingement plate crossing each other, wherein the visible light transmittance of the upper part of the trapping container is equal to the visible light transmittance of the impingement plate It is characterized by being set lower than

According to this configuration, the attractant housed inside the trapping container attracts the insects around the trapping container to enter the trapping container through the introduction hole and trap the insects, and the insects flying around the trapping container collide. When it collides with the plate and falls, it enters the capture container through the introduction hole and is captured. By lowering the visible light transmittance of the upper portion of the trapping container, insects attracted by the attractant can easily find the introduction hole, and the number of insects entering the container through the introduction hole can be increased. Also, even if the insects attracted by the attractant cannot find the introduction hole, the visible light transmittance of the upper part of the trapping container is made lower than the visible light transmittance of the impingement plate in the present invention. The impingement plate appears brighter than the top of the trap, and the insects tend to fly toward the bright side, i.e., toward the impingement plate. This makes it easier for the insects to collide with the collision plate, and the insects that have collided with the collision plate and fallen enter the trapping container through the introduction hole and are captured. Furthermore, even insects that are flying around regardless of the attraction effect of the attractant are likely to fly toward the collision plate in the same manner as described above, so that they collide with the collision plate and fall through the introduction hole. Caught in a catch container. In this way, the attracting effect of the attracting agent and the attracting effect of the color difference between the collision plate and the upper part of the container also occur, thereby improving the trapping effect.

In addition, since the first impact plate and the second impact plate are oriented in different directions, it is possible to increase the probability that insects flying from different directions will collide with the impact plate.

In a second aspect of the invention, the capture container comprises a translucent container body with an open top and a visible light transmittance attached to the top of the container body and having a visible light transmittance lower than the visible light transmittance of the collision plate. and a lid, wherein the introduction hole is formed in the lid.

According to this configuration, since the container body is translucent, insects trapped in the container try to escape to the bright side (outward), but the lid, which has a low visible light transmittance, tends to escape. not suitable for This can reduce the possibility that insects once captured in the container will escape through the introduction hole formed in the lid. In addition, since the container body is translucent, it is possible to check the presence or absence of the attractant and the trapped insects from the outside. Since the lid is separate from the container body, it is easy to change the color of the lid from the color of the container body to have a visible light transmittance lower than the visible light transmittance of the impingement plate. can be done

A third invention is characterized in that the color of the lid is black, brown, blue, dark blue, or green.

With this configuration, the visible light transmittance of the lid is low, and the difference in brightness from the collision plate becomes clearer, so insects flying around the trapping container easily collide with the collision plate.

A fourth aspect of the invention is characterized in that the collision plate has translucency to allow natural light to pass therethrough.

According to this configuration, the visible light transmittance of the impingement plate is high, so that the difference in brightness from the upper part of the trapping container becomes clearer, and insects flying around the trapping container are more likely to collide with the impingement plate. .

A fifth aspect of the invention is characterized in that the color of the upper portion of the capture container is black, and the collision plate is colorless and transparent.

According to this configuration, the difference in color and brightness between the upper part of the trapping container and the collision plate becomes clearer, and insects flying around the trapping container easily collide with the collision plate .

In a sixth aspect of the invention, a cover member that covers the collision plate from above is provided so as to be positioned above the introduction hole, and the cover member is any one of black, brown, blue, dark blue, and green. Characterized by

According to this configuration, since the cover member is arranged above the introduction hole, the cover member functions as a roof, making it difficult for rain or the like to enter the inside of the trapping container.

In a seventh aspect of the invention, the catching container is provided with an edge projecting outward, and an engaging portion that engages with the rim of the catching container is provided at a lower portion of the collision plate. The cover member is characterized in that it is in contact with the upper portion of the collision plate.

According to this configuration, the collision plate can be attached to the capture container by engaging the engaging portion of the collision plate with the capture container. In this state, since the cover member is in contact with the upper portion of the impact plate, the impact plate is less likely to fall due to the influence of wind or the like.

According to the first invention, the impingement plate is provided above the introduction hole of the trapping container containing the insect attractant, and the visible light transmittance of the upper part of the trapping container is made lower than the visible light transmittance of the impingement plate. Therefore, not only the attracting effect of the attractant but also the high attracting effect of the color can be obtained, and the effect of trapping insects can be improved.

In addition, since the first and second impact plates are provided to intersect with each other, it is possible to increase the probability of insects colliding with the impact plates.

According to the second invention, since the container body and the lid are separated, the color of the lid can be freely set while providing the container body with translucency. It can be colored with a visible light transmittance that is lower than the visible light transmittance.

According to the third invention, the difference in brightness between the cover and the collision plate becomes even clearer, so the effect of catching insects is further improved.

According to the fourth aspect of the invention, since the impingement plate is translucent, the difference in brightness between the cover and the impingement plate becomes clearer, and the effect of catching insects is further improved.

According to the fifth aspect of the invention, by making the upper part of the trapping container black and the collision plate colorless and transparent, the difference in color and brightness between the cover and the collision plate becomes clearer. The capture effect of is further improved .

According to the sixth aspect of the present invention, when a cover member is provided to prevent rain or the like from entering the inside of the trapping container, it is possible to prevent impeding insects from colliding with the impingement plate, thereby avoiding a decrease in trapping effect. can.

According to the seventh aspect of the invention, the cover member can suppress the collapsing plate from collapsing, so that the desired trapping effect can be obtained over a long period of time.

1 is a top perspective view of a bee trap according to an embodiment of the present invention; FIG. 1 is a front view of a bee trap; FIG. Fig. 3 is a left side view of the bee trap; Fig. 2 is a plan view of the bee trap; FIG. 3 is a sectional view taken along line VV in FIG. 2; 1 is an exploded perspective view of a bee trap; FIG. It is a side view of a 1st collision plate. It is a side view of a second collision plate. FIG. 4 is an exploded view of a cover member; 1 is a perspective view of a bee trap in the process of being assembled; FIG. It is a perspective view explaining the method of accommodating each member in a box. It is a perspective view which shows the state which accommodated each member in the box.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. It should be noted that the following description of preferred embodiments is essentially merely illustrative, and is not intended to limit the invention, its applications, or its uses.

FIG. 1 is a perspective view showing a bee trap 1 according to one embodiment of the insect trap of the present invention. The bee catcher 1 includes a trapping container 10 , a first collision plate 20 , a second collision plate 30 and a cover member 40 . This bee trap 1 is for trapping and exterminating bees in a trapping container 10. For example, it can be used by hanging it from a tree or a pole, or by placing it on a stand. is configured to The first collision plate 20 and the second collision plate 30 are members for improving the capture rate of bees as will be described later. In this embodiment, the collision plate includes the first collision plate 20 and the second collision plate 30 However, it is not limited to this, and only one of the collision plates may be included. The cover member 40 is a member that covers the capture container 10, is not essential, and can be omitted. The bees targeted by the bee trap 1 are not particularly limited, but examples include wasps (Japanese giant hornets).

In the description of this embodiment, as shown in each figure, the left and right sides of the bee trap 1 are defined, and the near side and the far side are defined. usage conditions, manufacturing, assembly, packaging, and storage orientations. Either side of the bee trap 1 can be right or left. Also, the front side of the bee trap 1 can be called the front side, and the back side can be called the rear side.

(Configuration of capture container 10)
As shown in FIGS. 5 and 6, the capture container 10 includes a cup-shaped container body 11 that opens upward, and a lid 12 attached to the top of the container body 11. The top of the capture container 10 is a lid. 12. The container body 11 and the lid 12 are made of, for example, an elastically deformable resin material. Examples of the resin material include polyethylene terephthalate, polypropylene, polyethylene, polystyrene, and polycarbonate. The container body 11 and the lid 12 are obtained by vacuum forming a resin sheet material. The thickness of the resin sheet material is, for example, preferably in the range of 0.2 mm or more and 1.2 mm or less, more preferably 0.3 mm or more and 0.8 mm or less. The container main body 11 and the lid 12 may be obtained by hot-press molding a resin sheet, or the container main body 11 and the lid 12 may be obtained by injection molding a resin material. Note that the container body 11 and the lid 12 are preferably made of resin in consideration of weather resistance and economic efficiency, but are not limited to this, and may be formed using materials other than resin.

The visible light transmittance of the resin material forming the container body 11 is set higher than the visible light transmittance of the resin material forming the lid 12 . Visible light transmittance can be measured by a conventionally well-known method, for example, by a method based on JIS K7375 or the like. Also, the visible light transmittance can be defined as the rate at which light with a wavelength of about 400 nm to about 700 nm is transmitted under outdoor scattered light, and can be measured using, for example, a spectrophotometer. By using the value measured with light having a wavelength of about 500 nm, an average visible light transmittance can be obtained. The visible light transmittance of the resin material constituting the container body 11 can be set to, for example, 30% or more, and the visible light transmittance of the resin material constituting the lid 12 can be measured by any of the above measurement methods. The rate can be set to 20% or less. The visible light transmittance of the resin material forming the lid 12 is more preferably 10% or less.

In this embodiment, the resin material constituting the container body 11 is, for example, lightly colored and semi-transparent, so that the level of the attractant liquid 13 inside and the presence or absence of bees can be identified under sunlight. ing. That is, the resin material forming the container body 11 has the property of transmitting natural light. Further, the resin material forming the container main body 11 may be lightly colored and transparent, or may be colorless and transparent. The resin material forming the container body 11 and the resin material forming the lid 12 may be of the same color.

The resin material forming the lid 12 is colored black, for example, so that the inside of the container body 11 cannot be visually recognized through the lid 12 . By making the lid 12 black, the color of the top of the catch container 10 becomes black. The resin material forming the lid 12 may be colored in any of brown, blue, dark blue, and green other than black. The lid 12 may be of a single color or may be painted in a plurality of colors.

The bottom wall portion 11b of the container body 11 is substantially circular. The peripheral wall portion 11c of the container body 11 extends upward from the peripheral portion of the bottom wall portion 11b. The entire upper end portion of the peripheral wall portion 11b is open in a substantially circular shape. The horizontal cross section of the peripheral wall portion 11c is substantially circular, and the inner diameter is set to increase toward the top and decrease toward the bottom. Although the volume of the trapping container 10 is not particularly limited, it preferably has a volume capable of accommodating 10 or more Asian giant hornets, for example, a volume of 300 ml or more and 500 ml or more.

In addition, the size of the trapping container 10 is set in consideration of ease of installation and ease of transport, and for example, the outer diameter can be set within 100 mm and the height can be set within 200 mm. At the upper end of the peripheral wall portion 11c of the container body 11, a ridge portion 11a is formed that protrudes radially outward and extends continuously in the circumferential direction. The ridge portion 11 a is an edge portion that protrudes radially outward from the container body 11 . A bee attractant 13 is accommodated inside the trapping container 10 . The attractant 13 is a liquid as will be described later. The liquid level of the attractant 13 can be set at the vertical central portion of the container body 11 or above the central portion. However, the insect trap of the present invention can also be used to trap insects other than bees, and the diameter of the introduction hole 12a can be appropriately set according to the target insect. The volume and diameter of the trapping container 10 can also be set according to the target insect.

The lid 12 is a member for closing the opening at the upper end of the container body 11, and has a substantially circular shape in plan view. An introduction hole 12 a for introducing bees into the capture container 10 is formed in the central portion of the lid 12 . Since the lid 12 is positioned above the trapping container 10 , the introduction hole 12 a is also positioned above the trapping container 10 . The shape of the introduction hole 12a can be, for example, circular, but is not limited to this, and may be, for example, elliptical or polygonal. The number of introduction holes 12a is one in this embodiment, but may be two or more. When two or more introduction holes 12a are provided, the introduction holes 12a can be separated from each other, and can be formed in a portion other than the central portion of the capture container 10. FIG.

The diameter of the introduction hole 12a can be set to 20 mm or more and 35 mm or less. If the diameter of the introduction hole 12a is less than 20 mm, it becomes difficult for large-sized bees such as Asian giant hornets to enter the introduction hole 12a, resulting in a reduced capture rate. On the other hand, if the diameter of the introduction hole 12a is larger than 35 mm, there is a high possibility that butterflies, moths, and beetles other than bees will enter, so the diameter of the introduction hole 12a is preferably 35 mm or less. Therefore, by setting the diameter of the introduction hole 12a to 20 mm or more and 35 mm or less, it is possible to increase the trapping rate of large bees. It is more preferable to set the diameter of the introduction hole 12a to 30 mm or less.

An annular portion 12d protruding downward is formed on the periphery of the introduction hole 12a. The vertical dimension of the annular portion 12 d is set longer than the thickness dimension of the plate member forming the lid 12 . The vertical dimension of the annular portion 12d can be set to, for example, 1 mm or more, and the upper limit can be set to 20 mm. The annular portion 12d may be omitted.

The periphery of the introduction hole 12a and the liquid surface of the attractant 13 are separated by a predetermined dimension or more. This predetermined dimension is set so that, for example, when the giant hornet is captured and is floating on the liquid surface of the attractant 13, it is difficult for the hands and legs of the giant hornet to reach the periphery of the introduction hole 12a. be. The predetermined dimension can also be set to 40 mm or more.

An inclined surface 12b is formed around the introduction hole 12a in the lid 12 . The inclined surface 12b is the lowest at the peripheral edge of the introduction hole 12a, and is inclined so as to be positioned upward with increasing distance from the introduction hole 12a in the radial direction outward, and is continuous in the circumferential direction of the introduction hole 12a. The inclined surface 12b is a surface for guiding bees on the inclined surface 12b to the introduction hole 12a. The inclination angle of the inclined surface 12b is set so that the bees on the inclined surface 12b can easily slide down toward the introduction hole 12b. is. A horizontal surface may be provided without providing the inclined surface 12b.

A peripheral portion of the lid 12 is formed so as to protrude in the horizontal direction, and an annular plate portion 12c extending so as to surround the ridge portion 11a of the container body 11 is formed on the peripheral portion. The annular plate portion 12c is formed so as to be fitted to the outside of the ridge portion 11a of the container body 11. As shown in FIG. The lid 12 is detachably attached to the container body 11 by fitting the annular plate portion 12c to the ridge portion 11a of the container body 11 .

(Structure of First Collision Plate 20 and Second Collision Plate 30)
As shown in FIG. 10 and the like, the first collision plate 20 and the second collision plate 30 are provided so as to extend vertically above the introduction hole 12a of the trapping container 10, and mainly catch bees flying in the horizontal direction. It is a member for colliding. Both surfaces of the first collision plate 20 and both surfaces of the second collision plate 30 are bee collision surfaces. Both the first collision plate 20 and the second collision plate 30 are made of a resin material, and the material can be the same as the material of the capture container 10 . The thicknesses of the first collision plate 20 and the second collision plate 30 are set to be thicker than the thickness of the resin sheets that constitute the container body 11 and the lid 12, so that the first collision plate 20 and the second collision plate 30 has a higher rigidity than the resin sheet and is less deformable, but has flexibility so that it can be bent when housed in a box 100, which will be described later. The first collision plate 20 and the second collision plate 30 have elasticity such that after being bent when housed in the box 100, they are restored to a substantially flat state when removed from the box 100 and external force is removed. The materials of the first collision plate 20 and the second collision plate 30 may be the same or different.

The visible light transmittance of the upper portion (cover 12 ) of the trapping container 10 is set lower than the visible light transmittance of the first collision plate 20 and the second collision plate 30 . Specifically, the color of the resin material forming the lid 12 is a color that hardly transmits visible light, while the resin material forming the first impact plate 20 and the second impact plate 30 has translucency that allows natural light to pass through. have. Although the first collision plate 20 and the second collision plate 30 are transparent and colorless, they may be lightly colored with yellow or the like. The first collision plate 20 and the second collision plate 30 have visibility that allows the other side to be visually recognized. The first collision plate 20 and the second collision plate 30 may be lightly colored translucent or milky white.

The first collision plate 20 extends from the front side to the back side of the catching container 10. The first collision plate 20 is highest at the center and becomes lower toward the front side and toward the back side. It is shaped like a mountain. The longitudinal direction of the first collision plate 20 is the direction from the front side to the back side. As shown in FIG. 7, a first slit 21 is formed in the longitudinal central portion of the first collision plate 20 . The upper part of the first slit 21 is open at the upper edge of the first collision plate 20 , and the first slit 21 extends downward from the upper edge of the first collision plate 20 . Although the first slit 21 has a wave shape, it may have a shape extending linearly. The lower part of the first slit 21 is positioned near the center of the first collision plate 20 in the vertical direction.

First hook portions (engagement portions) 22, 22 protruding downward are formed on the front side and the back side of the lower portion of the first collision plate 20, respectively. The first hook portions 22, 22 are formed so as to open upward, and are portions that engage with the ridge portion 11a of the container body 11, which is the edge portion of the capture container 10, from below so as to be caught. .

For example, as shown in FIG. 10, the second collision plate 30 extends from the right side of the capture container 10 toward the left side. Therefore, the first collision plate 20 and the second collision plate 30 are arranged so as to cross each other. In this embodiment, the first collision plate 20 and the second collision plate 30 are perpendicular to each other, but the angle between the first collision plate 20 and the second collision plate 30 is 70 in plan view. It may be about 80 degrees.

The second collision plate 30 is formed in a mountain shape so that it is highest at the center in the left-right direction and lower toward the right and left. The longitudinal direction of the second collision plate 30 is the left-right direction. As shown in FIG. 8, a second slit 31 is formed in the center of the second collision plate 30 in the left-right direction. The lower part of the third slit 31 is open at the lower edge of the second collision plate 30 , and the second slit 31 extends upward from the lower edge of the second collision plate 30 . Although the second slit 31 has a wave shape, it may have a shape extending linearly. The upper part of the second slit 31 is positioned near the center of the second collision plate 30 in the vertical direction.

Second hook portions (engagement portions) 32, 32 protruding downward are formed on the right and left sides of the lower portion of the second impact plate 30, respectively. The second hook portions 32, 32 are formed so as to open upward, and are portions that engage with the ridge portion 11a of the container body 11, which is the edge portion of the capture container 10, so as to be caught from below. .

Since the first collision plate 20 and the second collision plate 30 have flexibility as described above, when engaging the hook portion 22 or the hook portion 32 with the ridge portion 11a of the container body 11, the Engagement can be achieved by appropriately elastically deforming the collision plate and hooking the hook portion on the ridge portion 11a.

In this embodiment, the impingement plates 20 and 30 are engaged with the container body 11 so as to be caught from below. However, it is not necessary to engage with the container body 11 itself. For example, impingement plates 20 and 30 may be configured to engage the upper portion of lid 12 .

A hanging plate portion 33 is provided in the center in the left-right direction on the upper portion of the second collision plate 30 so as to protrude upward. A through hole 33 a is formed in the hanging plate portion 33 . Although not shown, a string or thread can be passed through the through hole 33a, and the bee catcher 1 can be hung from a member such as a branch of a tree or a rod by the string or thread. can be done. Since the second collision plate 30 is provided with the hanging plate portion 33 to support the weight of the trapping container 10 in this manner, the structure is such that the weight of the trapping container 10 is not applied to the later-described cover member 40 . Alternatively, a hanging plate may be provided at the top of the cover member 40 to support the weight of the capture container 10 with the cover member 40 . However, since the cover member 40 of this embodiment is made of a flexible sheet, if the weight of the capture container 10 is applied to the cover member 40, the cover member 40 may be stretched vertically and distorted. There is In this respect, as described above, in this embodiment, the cover member 40 does not bear the weight of the capture container 10 , so the cover member 40 is not distorted by the weight of the capture container 10 .

The first collision plate 20 and the second collision plate 30 are combined and integrated. That is, the portion of the second collision plate 30 where the second slit 31 is formed is inserted into the first slit 21 of the first collision plate 20 from above, and the second slit 31 of the second collision plate 30 is inserted into the second slit 31 of the second collision plate 30 from below. 1 Insert the part of the collision plate 20 where the first slit 21 is formed. Then, the portion of the second collision plate 30 above the second slit 31 is inserted into the first slit 21, and the portion of the first collision plate 20 below the first slit 21 is inserted into the second slit 21. is inserted. As a result, as shown in FIG. 10, the first collision plate 20 and the second collision plate 30 are integrated while crossing each other.

A lower portion of the first impact plate 20 and a lower portion of the second impact plate 30 are in contact with the upper surface of the lid 12 . As a result, the vertical positioning of the first collision plate 20 and the second collision plate 30 with respect to the capture container 10 is performed. The tops of the first collision plate 20 and the second collision plate 30 are separated from the lid 12 of the capture container 10 by 80 mm or more. By ensuring a vertical separation distance of 80 mm or more between the upper portions of the first collision plate 20 and the second collision plate 30 and the lid 12, the vertical dimensions of the first collision plate 20 and the second collision plate 30 are sufficiently large. and can increase the collision rate of bees. It is more preferable that the vertical separation distance between the upper portions of the first collision plate 20 and the second collision plate 30 and the lid 12 is, for example, 100 mm or more. In this embodiment, the upper portion of the first collision plate 20 and the upper portion of the second collision plate 30 have the same height, but they may have different heights.

Also, the maximum dimension in the width direction of the first collision plate 20 (the maximum dimension from the end on the front side to the end on the back side) is set longer than the outer diameter of the capture container 10 . Similarly, the maximum dimension in the width direction of the second collision plate 30 (the maximum dimension from the right end to the left end) is set longer than the outer diameter of the capture container 10 . In this embodiment, the maximum dimension in the width direction of the first collision plate 20 and the maximum dimension in the width direction of the second collision plate 30 are the same, but they are not limited to this and may be different. When attaching the first collision plate 20 and the second collision plate 30 to the capture container 10, the first hook portion 22 and the second hook portion 32 are only engaged with the capture container 10, so the first collision plate 20 And the second collision plate 30 is detachable from the capture container 10 .

(Structure of cover member 40)
The cover member 40 is a member that covers the first collision plate 20 and the second collision plate 30 from above. The cover member 40 is provided so as to be positioned above the introduction hole 12a formed in the lid 12, and also covers the introduction hole 12a from above. This prevents rain or the like from entering the capture container 10 through the introduction hole 12a. The cover member 40 is made of a resin material, and the material can be the same as the material of the first collision plate 20 and the second collision plate 30 . The color of the resin material forming the cover member 40 can be the same as that of the lid 12, and can be black, brown, blue, dark blue, or green, for example. The cover member 40 may be colorless and transparent.

The cover member 40 is attached to the trapping container 10 in an annularly curved state as shown in FIG. 1 and the like. On the other hand, as shown in the developed view of FIG. 9, it can be developed into a flat sheet. A container insertion hole 41 into which the container main body 11 is inserted from below is formed in the central portion in the longitudinal direction of the cover member 40 . The shape of the container insertion hole 41 is formed so as to substantially match the outer shape of the vertical intermediate portion of the container body 11, and is circular in this embodiment. For example, as shown in FIGS. 5 and 10, the shape of the container insertion hole 41 is such that when the container body 11 is inserted into the container insertion hole 41, the upper portion of the container body 11 is positioned above the container insertion hole 41. and inner diameter are set.

As shown in FIG. 9 , openings 42 are formed on both sides of the container insertion hole 41 in the cover member 40 . Insertion pieces 43, 43 are formed in the vicinity of one longitudinal end of the cover member 40, while engagement holes 44 into which the insertion pieces 43, 43 are inserted are formed in the vicinity of the other longitudinal end of the cover member 40. , 44 are formed. Further, an insertion hole 45 through which the suspension plate portion 33 of the second collision plate 30 is inserted is formed between the insertion pieces 43 , 43 near one end in the longitudinal direction of the cover member 40 .

The cover member 40 is attached to the capture container 10 as shown in FIG. 1 and the like. That is, after the container main body 11 is inserted into the container insertion hole 41 of the cover member 40 (shown in FIG. 10), both sides of the cover member 40 in the longitudinal direction are bent upward, and the suspension plate portion 33 of the second collision plate 30 is bent upward. is inserted through the insertion hole 45 . When the insertion pieces 43, 43 are inserted into the engagement holes 44, 44, the insertion pieces 43, 43 are engaged with the peripheral edge portions of the engagement holes 44, 44, and the cover member 40 becomes annular. In this state, the openings 42, 42 of the cover member 40 are located on the front side and the back side of the bee trap 1, respectively. The second collision plate 30 can be visually recognized through the openings 42 , 42 . The size of the openings 42, 42 is large so that most of the second collision plate 30 can be visually recognized.

Further, side openings 4, 4 are formed by edges of the cover member 40 on the left and right sides of the cover member 40 attached to the trapping container 10, respectively. The first collision plate 20 can be visually recognized through the side openings 4,4. The side openings 4, 4 are large-sized so that most of the first collision plate 20 can be visually recognized.

In addition, the cover member 40 is in contact with the upper portion of the first collision plate 20 and the upper portion of the second collision plate 30 in a ring-shaped state attached to the trapping container 10 .

Since the large opening 42 and the side opening 4 are provided in this manner, the odor of the attractant 13 can be diffused well even though the introduction hole 12a is covered with the cover member 40, and the bees can be attracted. It can be induced efficiently. By lowering the visible light transmittance of the cover member 40 and the lid 12 and increasing the visible light transmittance of the first collision plate 20 and the second collision plate 30, light is emitted through the opening 42 or the side opening 4. A bee looking into the inside of the cover member 40 feels that the space between the cover member 40 and the lid 12 is like a tunnel that can pass through, and the other side of the space looks bright. For this reason, it is thought that the bees tend to fly toward the collision plates 20 and 30 and, as a result, easily collide with the collision plates 20 or 30 . The bees that collide with the collision plate 20 or 30 fall, slide down the inclined surface 12b, fall through the introduction hole 12b onto the water surface of the attractant 13 in the trapping container 10, and are captured.

(Accommodation method of bee trap 1)
The bee trap 1 is transported to a retail store and displayed in a store in a box 100 as shown in FIGS. 11 and 12 . Box 100 is a box made of paper, for example cardboard. The width W of the box 100 is set slightly wider than the outer diameter of the lid 12 of the trapping container 10 . The box 100 can be formed so that all four sides are the same size when viewed from above, but may have sides of different lengths and may be rectangular when viewed from above. good too.

As shown in FIG. 11, the bee catcher 1 is disassembled into the trapping container 10, the first collision plate 20, the second collision plate 30, and the cover member 40 before being housed in the box 100. As shown in FIG. When housing the catching container 10 in the box 100, the first collision plate 20 and the second collision plate 30 are curved between the catching container 10 and the box 100 and housed in the box 100, and the cover member 40 is also captured. It is bent between the container 10 and the box 100 and housed in the box 100.例文帳に追加

Specifically, the cover member 40 is curved until it has a shape close to a cylinder so as to surround the capture container 10, and the outer diameter when curved is approximately equal to or larger than the width W of the box 100. Make it slightly smaller. The first collision plate 20 and the second collision plate 30 are arranged inside the curved cover member 40 . At this time, the first collision plate 20 and the second collision plate 30 are curved in an arc shape so as to surround the capture container 10 . When one of the first collision plate 20 and the second collision plate 30 is omitted, only the other collision plate should be accommodated in the box 100 . Also, if the cover member 40 is omitted, the first collision plate 20 and the second collision plate 30 may be housed in the box 100 .

When the cover member 40 is housed in the box 100 , the cover member 40 expands in diameter until it contacts the inner surface of the box 100 due to the restoring force. Also, since the first collision plate 20 and the second collision plate 30 are also flattened by the restoring force, they come into contact with the cover member 40 and the outer surface of the trapping container 10 . Therefore, the cover member 40, the first collision plate 20 and the second collision plate 30 are accommodated inside the box 100 without rattling.

In this embodiment, the longitudinal dimension of the first impingement plate 20 is less than half the longitudinal dimension of the cover member 40 , and the longitudinal dimension of the second impingement plate 30 is also the longitudinal dimension of the cover member 40 . Less than half the dimension in the direction. As a result, the curved first collision plate 20 and the second collision plate 30 can be accommodated in the box 100 while being spaced apart in the circumferential direction of the capture container 10, so that the first collision plate 20 and the second collision plate 30 can be accommodated in the box 100. The collision plates 30 need not be stacked in the thickness direction. Although not shown, the first collision plate 20 and the second collision plate 30 may be stacked in the thickness direction and curved to be accommodated in the box 100 .

Also, the first collision plate 20 and the second collision plate 30 are housed below the lid 12 . As a result, the space formed between the outer surface of the container body 11 and the box 100 can be effectively used as a space for accommodating the first collision plate 20 and the second collision plate 30 . The first collision plate 20, the second collision plate 30, and the cover member 40 are accommodated in the box 100 while being bent and stacked in the thickness direction. Note that the first collision plate 20 and the second collision plate 30 may be accommodated between the cover member 40 and the inner surface of the box 100 .

The order in which the trapping container 10, the first collision plate 20, the second collision plate 30, and the cover member 40 are accommodated in the box 100 is not particularly limited. , the first collision plate 20 and the second collision plate 30 may be curved and housed in the box 100, and then the trapping container 10 may be housed. Alternatively, after accommodating the trapping container 10 in the box 100, the cover member 40 may be bent to accommodate in the box 100, and then the first collision plate 20 and the second collision plate 30 may be bent to accommodate in the box 100. good. Alternatively, after the capture container 10 is housed in the box 100, the first collision plate 20 and the second collision plate 30 may be curved and housed in the box 100, and then the cover member 40 may be curved and housed in the box 100. good. Alternatively, after the first collision plate 20 and the second collision plate 30 are curved and accommodated in the box 100, the cover member 40 may be curved and accommodated in the box 100, and then the capture container 10 may be accommodated in the box 100. good. Alternatively, after the first collision plate 20 and the second collision plate 30 are curved and housed in the box 100 , the capture container 10 may be housed in the box 100 and then the cover member 40 may be housed in the box 100 .

Alternatively, the capture container 10, the first collision plate 20, the second collision plate 30, and the cover member 40 may be integrated outside the box 100 and then housed in the box 100 together. The attractant 13 can be stored inside the container body 11 in a sealed bag or the like. Just do it.

All or part of the first collision plate 20 , the second collision plate 30 , and the cover member 40 may be accommodated inside the capture container 10 .

(Configuration of attractant 13)
The attractant 13 is a liquid agent that has the action of attracting bees and is a liquid agent for capturing bees, so it can also be called a bee-catching liquid. In particular, the attractant 13 of the present embodiment artificially reproduces the fermented odor of tree sap that attracts bees in the natural world, and can also be called artificial sap. The attractant 13 contains sugar, yeast, alcohol, and water as artificial sap components. Further, the attractant 13 of the present embodiment contains a food additive surfactant (nonionic surfactant) as an escape prevention component.

Sugar can include, for example, fructose glucose liquid sugar. The content of fructose-glucose liquid sugar can be, for example, 1 w/v% or more and 75 w/v% or less. Yeast can include, for example, dry yeast. The yeast content can be, for example, 0.001% by mass or more and 5% by mass or less. By adding yeast, sugar is fermented with alcohol by yeast to generate alcohol and carbon dioxide.

At least one of ethanol, butane-2,3-diol, and glycerin can be used as the alcohol, and any two or more of these can be mixed and used. The alcohol content can be, for example, 0.01 w/v% or more and 15 w/v% or less. Since alcohol is produced by yeast fermentation, it can be omitted, but if alcohol is added, attractiveness can be exhibited satisfactorily even at the initial stage of fermentation.

The attractant 13 may contain acetic acid. The content of acetic acid can be, for example, 0.005 w/v% or more and 0.5 w/v% or less. Moreover, the attractant 13 may contain lactic acid. The content of lactic acid can be, for example, 0.005 w/v% or more and 5 w/v% or less. Since acetic acid and lactic acid form an ester with an alcohol, if they are mixed together, the composition may change due to long-term storage. Therefore, from the viewpoint of long-term storage stability, it is preferable to omit at least one of acetic acid, lactic acid, and alcohol.

Moreover, the attractant 13 may contain sodium propionate. The content of sodium propionate can be, for example, 0.005 w/v% or more and 0.5 w/v% or less.

The surfactant added to the artificial tree sap as an escape-preventing component is preferably a nonionic surfactant in that it does not adversely affect yeast, and more preferably a food additive surfactant as in the present embodiment. At least one of polyoxyethylene sorbitan monolaurate and polyoxyethylene sorbitan monooleate can be used as the food additive surfactant, and any two or more of these can be mixed and used. can also The content of the food additive surfactant can be, for example, 0.001 w/v% or more and 1.0 w/v% or less. Since the surfactant is a food additive type, it does not adversely affect yeast fermentation, and it is possible to quickly start fermentation by yeast at the start of use, and a high attraction effect can be obtained over a long period of time. be done. As the food additive surfactant, for example, Tween 20 and Tween 80 manufactured by Tokyo Chemical Industry Co., Ltd. can be used.

(Fermentability of attractant liquid 13)
Since the attractant 13 contains dry yeast as yeast, it is fermented by the action of yeast. The effect of attracting bees can be enhanced by the odor or the like produced by fermentation. Attractant formulations 1 and 2 are shown in Tables 1 and 2.

The attractant 13 is obtained by first dissolving fructose and glucose in water, and then adding ethanol, acetic acid, lactic acid, a food additive surfactant, and dry yeast. Attractant formulation 1 shown in Table 1 and attractant formulation 2 shown in Table 2 differ in dry yeast. The dry yeast of attractant prescription 1 contains 3 g of economical dry yeast of Kyoritsu Foods (referred to as Kyoritsu dry yeast), and the dry yeast of attractant prescription 2 contains 3 g of Nissin Foods Nissin Super Camellia Vacuum Pouch (Nisshin called dry yeast).

A fermentation confirmation test method for the attractant liquid 13 will be described. After adding 100 mg of dry yeast to 20 g of the test agent to obtain an attractant liquid 13, the liquid is immediately put into a 10.2 L container. Time measurement is started immediately after the attractant liquid 13 is put into the container. The container was a glass cylinder with an inner diameter of 20 cm x 30 cm, and the top and bottom of the cylinder were covered with glass plates so as to be hermetically sealed. Atmospheric temperature during the test was 24.5° C. and humidity was 47%. After a certain period of time, the concentration of carbon dioxide in the container was measured. The measuring instrument was GM70 manufactured by VAISALA, and was used after 15 minutes or more had elapsed after starting. Incidentally, the carbon dioxide concentration in the blank air was about 220 to 300 ppm.

Table 3 shows the carbon dioxide concentration of the attractant prescription 1, the carbon dioxide concentration when not containing Tween 20 in the attractant prescription 1, the carbon dioxide concentration of the attractant prescription 2, and the carbon dioxide of the prescription that does not contain Tween 20 in the attractant prescription 2. The concentration was measured after 1 hour, 24 hours, and 48 hours, respectively. As is clear from Table 3, it was confirmed that fermentation proceeded in both attractant formulation 1 containing Kyoritsu dry yeast and attractant formulation 2 containing Nisshin dry yeast. In addition, regardless of the presence or absence of Tween 20, fermentation proceeds, indicating that Tween 20 does not inhibit fermentation by dry yeast. Similar results are obtained with Tween 80.

Attractant formulations 3 and 4 are shown in Table 4. The method of obtaining attractant formulations 3 and 4 is the same as the method of obtaining attractant formulation 1. The same applies hereinafter.

Attractant formulation 3 is a formulation that does not contain glucose, and attractant formulation 4 is a formulation that does not contain alcohol. Table 5 shows the measurement results of the carbon dioxide concentration of attractant formulations 3 and 4.

Both the attractant formulations 3 and 4 had a high carbon dioxide concentration after 1 hour, and fermentation was promoted from the beginning. In addition, the concentration of carbon dioxide after 48 hours was high for both attractant formulations 3 and 4, indicating that the fermentation continued for a long time.

Attractant Formulation 5 is shown in Table 6. Attractant Formulation 5 is a formulation containing no alcohol, lactic acid, or acetic acid.

Attractant Formulation 6 is shown in Table 7. Attractant Formulation 6 is a formulation containing no alcohol and no lactic acid, with an acetic acid concentration of 0.01%.

Attractant Formulation 7 is shown in Table 8. Attractant Formulation 7 is a formulation containing no alcohol and no lactic acid, with an acetic acid concentration of 0.05%.

Table 9 shows the measurement results of the carbon dioxide concentration of attractant formulations 5 to 7.

It can be seen that the concentration of carbon dioxide after 55 hours was high in all attractant formulations 5 to 7, and the fermentation continued for a long time.

Attractant Formulation 8 is shown in Table 10. Attractant Formulation 8 is an alcohol- and acetic-free formulation with a concentration of lactic acid of 0.05%.

Attractant Formulation 9 is shown in Table 11. Attractant Formulation 9 is a formulation containing no alcohol and no acetic acid, with a concentration of lactic acid of 0.1%.

Attractant Formulation 10 is shown in Table 12. Attractant formulation 10 is an alcohol and lactic acid free formulation with a concentration of 0.1% acetic acid.

Attractant Formulation 11 is shown in Table 13. Attractant formulation 11 is an alcohol- and lactic acid-free formulation with an acetic acid concentration of 0.3%.

Table 14 shows the measurement results of the carbon dioxide concentration of attractant formulations 8 to 11.

It can be seen that the carbon dioxide concentration after 66 hours is high in all attractant formulations 8 to 11, and the fermentation continues for a long time. Therefore, even if it does not contain both lactic acid and acetic acid, it is possible to continue fermentation for a long time by containing one of them.

(Surface tension of attractant 13)
The surface tension was measured using a Dunouy surface tension tester (Ito Seisakusho Co., Ltd.). At the time of measurement, the ambient temperature was 25.8°C and the humidity was 32%. The following surface tension measurements are averages of three measurements.

Table 15 shows the formulation of Comparative Example 1. The formulation of Comparative Example 1 is a formulation obtained by removing the food additive-based surfactant from the attractant formulation 1 shown in Table 1.

The surface tension of the formulation of Comparative Example 1 was 61.0 mN/m. Incidentally, the surface tension of ion-exchanged water is 72.5 mN/m.

Attractant formulation 12 shown in Table 16 below is a formulation in which Tween 20 is 0.5% by mass relative to attractant formulation 1. Attractant formulation 13 is a formulation in which Tween 20 is 0.25% by mass relative to attractant formulation 1. Attractant formulation 14 is a formulation in which Tween 20 is 0.10% by mass relative to attractant formulation 1. Attractant formulation 15 is a formulation in which Tween 20 is 0.05% by mass relative to attractant formulation 1. Attractant formulation 16 is a formulation in which Tween 20 is 0.01% by mass relative to attractant formulation 1. Attractant formulation 17 is a formulation in which Tween 80 is added at 0.5% by mass to attractant formulation 1. Table 16 shows the surface tension of attractant formulations 12-17.

As shown in Table 16, the surface tension of the attractant 13 can be greatly reduced by adding the surfactant as compared with the formulation of the comparative example. Then, when the test insects (bees and cockroaches) were added to Comparative Example 1 (without the food additive-based surfactant), they were observed to continue to rage and escape for more than 5 minutes. When the test insects were placed in attractant formulas 12 to 17 containing surfactants, they stopped behaving within 3 minutes and became floating on the surface of the water. By adding a surfactant to lower the surface tension in this manner, the behavior of insects can be stopped, so that escape from the trapping container 10 can be prevented and the trapping effect can be improved. Although the mechanism by which the decrease in surface tension leads to cessation of behavior has not been fully clarified, it is thought as follows. That is, by lowering the surface tension of the attractant 13, the attractant 13 is more likely to adhere to the insect bodies and wings, so that the wings and body become heavy and unable to fly off the surface of the liquid. Then, while the insect is rampaging on the surface of the liquid, the attractant 13 adhering to the insect body blocks the spiracles and suffocates. Thus, when the bees attracted by the attractant 13 fall on the liquid surface of the attractant 13, the surface tension of the liquid surface is lowered by the surfactant, so the bees on the liquid surface cannot escape. Therefore, it can be said that the surfactant added to the attractant 13 is an escape prevention component.

(capture test)
Next, a capture test of the bee trap 1 will be described. The test method is to install the bee catcher 1 in a forest in the Chugoku region and leave it for three weeks. The season is summer. The bee trap 1 was retrieved and the number of trapped bees was counted. The n number is two.

Comparative Example 2 is a bee trap without an impingement plate and a cover member, and other parts are the same as those of the above embodiment. Comparative Example 3 is a bee trap in which the color of the first impingement plate and the second impingement plate is black, and other parts are the same as those of the above embodiment. In the example, the first impingement plate and the second impingement plate are colorless and transparent, and the lid is black. The attractants of Comparative Examples 2, 3 and Examples are the same.

As shown in Table 17, there was no significant difference in the number of captures between Comparative Example 3 with a black collision plate and Comparative Example 2 without a collision plate. On the other hand, in the example provided with the colorless and transparent collision plate, the number of traps was three times as large as that in Comparative Example 3, and it can be seen that the collision plate significantly improves the trapping effect. Note that the colors of the first collision plate and the second collision plate need only differ greatly from the color of the cover. Similar effects can be obtained regardless of whether the cover is brown, blue, dark blue, or green.

(Action and effect of the embodiment)
As described above, according to this embodiment, the bees around the trapping container 10 are attracted by the attractant 13 contained inside the trapping container 10, enter the trapping container 10 through the introduction hole 12a, and are captured. In addition, when the bees flying around the trapping container 10 collide with the first collision plate 20 or the second collision plate 30 and drop, they enter the trapping container 10 through the introduction hole 12a and are caught. Since the bee collision surface of the first collision plate 20 and the bee collision surface of the second collision plate 30 are oriented in mutually different directions, bees flying from any direction either hit the first collision plate 20 or the second collision plate 30. will clash.

In addition to these things, since the visible light transmittance of the upper portion of the capture vessel 10 is lower than the visible light transmittance of the first impingement plate 20 and the second impingement plate 30, the impingement plates 20, 30 are more sensitive to the capture vessel 10. The bees around the trapping container 10 tend to fly toward the bright side, ie, the collision plates 20 and 30. This makes it easier for the bees to collide with the first collision plate 20 or the second collision plate 30, and the bees that collide with the first collision plate 20 or the second collision plate 30 and fall enter the trapping container 10 through the introduction hole 12a. captured by Since the bees that collide with the first collision plate 20 or the second collision plate 30 include the bees attracted by the attractant 13, in addition to the attraction effect of the attractant, An attraction effect is also produced due to the difference in color from the upper part, and the trapping effect is improved.

In addition, the sugar contained in the attractant 13 is fermented by the action of yeast, thereby enhancing the bee attracting effect. When the attracted bees fall on the liquid surface of the attractant 13, the surface tension of the liquid surface is lowered by the surfactant, so the bees on the liquid surface quickly sink in the liquid and are difficult to escape from the trapping container 10. Become. Since the surfactant is a food additive type, it does not adversely affect yeast fermentation, and it is possible to quickly start fermentation by yeast at the start of use, and a high attraction effect can be obtained over a long period of time. be done.

When the bee catcher 1 is displayed and sold at a store, the first collision plate 20, the second collision plate 30 and the cover member 40 are removed from the trapping container 10, and bent between the trapping container 10 and the box 100. By storing them in the folded state, the space between the trapping container 10 and the box 100 can be used as a space for storing the collision plates 20 and 30 and the cover member 40 . As a result, the trapping container 10, the collision plates 20 and 30, and the cover member 40 can be compactly housed in the box 100, and the size of the box 100 can be reduced.

The above-described embodiments are merely examples in all respects and should not be construed in a restrictive manner. Furthermore, all modifications and changes within the equivalent scope of claims are within the scope of the present invention. The bees that can be caught by the bee trap according to this embodiment are not limited to giant hornets, and other bees can also be caught.

The insect trap of this embodiment is useful not only for bees but also for catching flying beetles and the like.

INDUSTRIAL APPLICABILITY As described above, the present invention can be used to capture bees such as wasps.

1 bee catcher (insect catcher)
10 capture container 11 container body 12 lid 12a introduction hole 13 attractant (insect capture liquid)
20 First collision plate 22 First hook portion (engagement portion)
30 Second collision plate 32 Second hook portion (engagement portion)
40 cover member 100 box

Claims (7)

a trapping container having an insect introduction hole formed in the upper portion thereof and containing an insect attractant therein;
and an impingement plate provided to extend vertically above the introduction hole,
the impingement plate includes a first impingement plate and a second impingement plate that intersect each other;
An insect trap, wherein the visible light transmittance of the upper portion of the trap container is set lower than the visible light transmittance of the collision plate. The insect trap according to claim 1,
The capture container comprises a translucent container body with an open top, and a lid attached to the top of the container body and having a visible light transmittance lower than the visible light transmittance of the collision plate,
An insect trap, wherein the introduction hole is formed in the cover. In the insect trap according to claim 2,
The insect trap, wherein the color of the lid is black, brown, blue, dark blue, or green. In the insect trap according to any one of claims 1 to 3,
The insect trap, wherein the collision plate has translucency to allow natural light to pass therethrough. In the insect trap according to claim 4,
The color of the upper part of the capture container is black,
An insect trap, wherein the collision plate is colorless and transparent. In the insect trap according to any one of claims 1 to 5 ,
a cover member covering the collision plate from above is provided so as to be positioned above the introduction hole;
An insect trap, wherein the cover member is black, brown, blue, dark blue, or green. In the insect trap according to claim 6 ,
The capture container is provided with an outwardly protruding rim,
An engagement portion that engages with the edge of the capture container is provided at a lower portion of the collision plate,
An insect trap, wherein the cover member is in contact with an upper portion of the impact plate.

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