JP2014057566A - Windmill type harmful bird/insect pest come-flying prevention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a windmill type harmful bird/insect pest come-flying prevention device which avoids birds to prevent come-flying thereof by being able to rotate to diffuse light in all directions even if a wind blows from any direction, and can be easily and certainly assembled.SOLUTION: A windmill type harmful bird/insect pest come-flying prevention device includes a light reflective windmill 4 capable of rotating around a vertical axis through a rotary cylinder member 3 through which a support shaft member 2 is inserted. The rotary cylinder member 3 includes upper and lower cylinder members 60, 61 whose end portions 57, 59 are engaged and integrated with each other. An impeller 81 constituting the windmill 4 uses one impeller formation sheet, and is configured by forming a plurality of vane pieces 89 by appropriately making cuts in the impeller formation sheet, bending the respective vane pieces 89, and lapping end portions thereof. The vane piece 89 is formed with a vertical non-circular communication insertion hole, and a non-circular shaft part 84 between vertical pulling-out prevention flange parts 66, 75 of the rotary cylinder member 3 is nearly closely inserted through the communication insertion hole.

Description

  The present invention relates to a windmill-type harmful bird / insect flying prevention apparatus used for preventing, for example, field crops from being damaged by birds such as crows and pigeons or flying insects.

  One of the means for preventing the crops in the field from being damaged by birds and flying insects is a device that utilizes the light diffusing action. As an example, a bird and animal invasion prevention tool disclosed in Patent Document 1, A bird flying prevention device disclosed in Patent Document 2 has been proposed.

  The apparatus according to Patent Document 1 is configured by supporting a light reflection plate having a light reflection function, a light reflection function, and a light interference function with a support member. This was intended to prevent birds from entering the fields and houses. As an example of a configuration in which the light reflecting plate is supported by a support member, a rotation type device as shown in FIG. 18 has been proposed. The apparatus a1 has a plurality of light reflecting plates b mounted on a rod axis c that can freely rotate around a vertical axis so that the angles of adjacent light reflecting plates b are different. By rotating a plurality of light reflecting plates b mounted thereon with wind force, the state of light reaching the birds is changed, thereby avoiding birds.

  However, when the apparatus is used, the length of the rod shaft c does not increase because a plurality of light reflecting plates b are arranged in parallel on the axis of the rod shaft c. There was a problem of lack of compactness. In addition, since a plurality of light reflecting plates b are attached to the rod shaft c serving as the rotation shaft and the overall weight is large, the frictional force at the support portion d at the lower end of the rod shaft is large, so that the light reflecting plate b is There was a problem that the wind could not be rotated at the time of a light wind, or the rotation was not performed smoothly.

  Further, the device according to Patent Document 2 is a device using a windmill, and the device a2 is a support rod e whose axis is vertical as shown in FIG. A wind turbine f that can rotate around a horizontal rotation axis h is rotatably supported via a bearing case j at the upper end of the support shaft g. The windmill f is composed of a plurality of blades k, and a distance from the center of the blades k so that the luminous body m emitting light instantaneously draws a concentric circle when the windmill f rotates. Were attached differently from each other.

  Since the device is a device in which a powerful light-emitting body m that emits light intermittently is attached to a vane plate k of a windmill f, the instantaneous light emission can make birds feel threatened and dazzled. It was definitely an aversion to birds. The luminous body m rotates concentrically around the rotation axis h, and further, the support shaft g is supported by the support rod e, so that the support shaft g is swung. It is described in the section of the effect of the invention of Patent Document 2 that instantaneous light emission is emitted over the entire circumference of the device a2 and a bird repelling effect can be exerted over a wide range.

  However, when the device a2 according to Patent Document 2 is used, since the rotation axis h of the windmill f is horizontal, for example, when the wind toward the windmill f as shown by an arrow in FIG. Even if birds can be avoided by instantaneous light emission on the front side of the windmill f, there is a problem that it is difficult to obtain the avoidance effect on the rear side. Indeed, the support rod e swings and swings, but if the wind direction changes frequently, it will not be noticed, and if there is little change in the wind direction, the bird repellent effect due to the instantaneous light emission of the illuminant is only in front of the windmill There is a problem that the repellent effect of birds is affected by the wind direction.

  In Patent Document 2, there is no description about the point that the blades constituting the windmill have light reflectivity, so the repelling effect of birds when the blades have light reflectivity is examined. In this case, since the blades reflect light by the rotation of the windmill, the bird repelling effect similar to that in Patent Document 1 will be obtained with the rotation of the windmill. However, the windmill f rotates around a horizontal axis, and even if it can be swung by the support rod e, the light diffusion effect by the windmill is limited as described above. There is a limit to the bird repellent effect of light reflection. In addition, during a breeze, the windmill may not rotate depending on the wind direction.

JP 2002-112690 A JP 2002-10180 A

  The present invention has been developed in view of the above-mentioned conventional problems, and can rotate regardless of the direction from which the wind blows and can diffuse light in all directions, thereby avoiding birds and flying them. It is an object of the present invention to provide a windmill-type harmful bird / insect flying prevention device that can prevent and avoid flying insects and can be assembled easily and reliably.

In order to solve the above problems, the present invention employs the following means.
That is, the windmill-type harmful bird / pest flying prevention device (hereinafter referred to as a flying prevention device) according to the present invention is a light-reflective material that can rotate around an axis in the vertical direction through a rotating cylinder member through which a support shaft member is inserted. The supporting shaft member is provided with a mounting portion for mounting on the lower end of the supporting shaft portion having a round shaft shape that is long in the vertical direction, and at the upper end of the supporting shaft portion. Is provided. The rotating cylinder member is divided into an upper cylindrical member and a lower cylindrical member whose end portions are engaged and integrated with each other, and the upper cylindrical member is a circular insertion through which the support shaft portion can be inserted. A retaining collar is provided at the upper end of the cylindrical portion provided with the upper insertion hole made of a hole, and the required width of the lower end portion of the cylindrical portion is cut in a direction perpendicular to the axis of the cylindrical portion. The upper part of the lower part of the lower part is cut out in the orthogonal direction to form a lower engaging groove part composed of opposing engaging grooves. The lower part of the groove is a lower engaging projection made of opposing engaging pieces. The lower cylindrical member is provided with a retaining collar at the lower end of the cylindrical portion provided with a lower insertion hole including a circular insertion hole through which the support shaft portion can be inserted, and an upper end of the cylindrical portion. The required width of the portion is cut off in the direction perpendicular to the axis of the cylindrical portion to form an upper split piece portion, and the lower portion of the upper split piece portion is cut away in the orthogonal direction to face each other. The upper engaging groove portion is made of an engaging groove, and the upper portion of the upper engaging groove portion is an upper engaging protrusion made of an opposing engaging piece. And while the lower engaging protrusion is fitted into the upper engaging groove, and the upper engaging protrusion is fitted into the lower engaging groove, the upper and lower cylindrical members are The upper and lower cylinder members are formed by inserting the support shaft portion into the circular insertion hole communicating with the rotating cylinder member formed so as to be integrated with the axis line. However, the rotation in the circumferential direction is restricted and the separation in the length direction is impossible, and the upper and lower cylinder members of the rotary cylinder member are the rotation axes of the impellers constituting the windmill. The upper and lower cylinder members are prevented from rotating in the circumferential direction and cannot be separated in the length direction. The cross-sectional outer shape is non-circular between the upper and lower retaining collars of the rotating cylinder member An engagement shaft portion is formed so that the engagement shaft portion is inserted into an engagement insertion hole provided along the rotation axis, and the engagement insertion hole is formed in the engagement shaft. The impeller is configured as a non-circular hole that is inserted substantially closely, and the impeller is constrained by the upper and lower retaining ribs so as not to fall off the rotating cylinder member. In addition, the impeller forms the engagement insertion hole in each end portion of a plurality of blade pieces which are formed by appropriately cutting a single impeller forming sheet from its edge toward its central portion. A non-circular insertion hole is provided, and a non-circular insertion hole for forming the engagement insertion hole is also provided in the central portion of the impeller forming sheet, and the insertion hole provided in the central portion; The blade piece is bent so as to match the insertion holes provided at the end portions of the blade pieces, and the engagement insertion holes are formed by matching all the insertion holes. To do.

  In the flying prevention apparatus, it is preferable that the attached portion is configured as follows. That is, the attached portion is configured with a support member attached to the upper portion of the support column, and an upper end opening hole is provided in the upper portion of the support member, and the support shaft portion is formed in the vertical direction. The screw shaft portion provided at the lower end thereof is screwed into the hole portion, and the upper end of the support shaft portion is provided with a knob portion concentric with the screw shaft portion. The screw shaft portion can be screwed into the hole portion by rotating the portion, and in this state, the support shaft portion between the screw shaft portion and the knob portion is the screw portion. It is preferable that the circular insertion hole of the rotating cylinder member is inserted.

  In the flying prevention apparatus, it is preferable that the upper and lower cylindrical members have the same configuration and can be used together.

  In the flying prevention device, the rotary cylinder member has an elliptical cross-sectional outer shape, and the insertion hole provided in the impeller forming sheet is an elliptical hole through which the rotary cylinder member can be inserted almost closely. It should be configured.

  In the flying prevention apparatus, it is preferable that the impeller forming sheet is made of a resin sheet and the front and back surfaces are formed as light reflecting surfaces.

The present invention has the following excellent effects.
(1) A flying prevention apparatus according to the present invention includes a light-reflective windmill that can rotate around an axis in the vertical direction through a rotating cylinder member through which the support shaft member is inserted, and has a long support shaft portion in the vertical direction. At the lower end, there is a mounting part to the mounted part, and at the upper end of the support shaft part, there is a knob, so that it can be rotated by effectively using the wind from any direction. Moreover, it can be rotated even in a light wind. By this rotation, sunlight is efficiently reflected by the light reflecting surface of the windmill, and light can be diffused in all directions starting from the windmill. Such light diffusing action can visually prevent birds such as crows from flying and effectively prevent them from flying, and can also be expected to prevent insects from flying, effectively repelling harmful birds and pests. Speaking of damage to birds in particular, by preventing birds from entering houses and various structures, birds such as crows and pigeons stop on the railings and eaves of the veranda, dropping feces, etc. It is also possible to effectively prevent bird damage that causes damage to buildings, laundry, trees, people, etc.

(2) And the flying prevention apparatus according to the present invention is configured such that the light-reflective windmill is rotatable via a rotating cylinder member through which the support shaft member is inserted, and the rotating cylinder member is provided with a top and bottom retaining member. An engagement shaft portion having a non-circular cross-sectional outer shape is formed between the flange portions, and the engagement shaft portion is provided along the rotation axis of the impeller constituting the windmill. The engagement insertion hole is configured as a non-circular hole through which the non-circular shaft portion is inserted substantially closely, and the impeller is constrained by the upper and lower retaining ribs and It is made so as not to fall off the rotating cylinder member.

  Therefore, the rotating cylinder member can rotate with the support shaft portion in a stationary state as the axis of rotation. And since this rotary cylinder member is inserted in the engagement penetration hole provided in the said impeller in the state of intimate contact, this impeller and this rotary cylinder member are by the engagement action which stops both rotation Can rotate together.

  For this reason, since the insertion hole of the impeller does not come into contact with the support shaft portion, the edge portion of the insertion hole is worn during rotation of the impeller, or a crack is generated in the peripheral portion of the insertion hole. It can prevent the windmill from being damaged.

  In particular, when the cross-sectional outer shape of the engagement shaft portion is formed in an elliptical shape and the engagement insertion hole of the impeller is formed in an elliptical shape corresponding thereto, the outer peripheral surface of the engagement shaft portion is also Since there is no corner portion in the inner peripheral edge portion of the engagement insertion hole, there is an advantage that a concentrated load is not easily applied to the engagement portion between the engagement shaft portion and the engagement insertion hole.

(3) The upper cylindrical member is provided with the lower engaging groove portion and the lower engaging protrusion at the lower end portion of the cylindrical portion, and the lower cylindrical member is the upper end portion of the cylindrical portion. Since the upper engaging groove and the upper engaging protrusion are provided in the upper engaging groove, the lower engaging protrusion is fitted into the upper engaging groove and the upper engaging protrusion is The upper and lower cylinder members can be integrated by setting the lower engagement groove portion. However, the end portions are easily separated from each other if they are integrated in this way, but when the support shaft portion is inserted into the integrated rotating cylindrical member, the upper and lower cylindrical members are Rotation in the circumferential direction is constrained to each other, and the upper and lower cylindrical members cannot be separated in the length direction, and the length of the cylindrical member is fixed.

  Thus, according to the present invention in which the rotating cylindrical member is constituted by engaging and integrating the end portions of the upper and lower cylindrical members, there is an advantage that the windmill can be assembled easily and reliably.

  Further, according to the present invention, since the impeller is configured by using a single impeller forming sheet provided with an appropriate cut, a three-dimensional impeller can be easily and reliably configured at low cost. .

(4) The rotating cylinder member is divided into an upper cylinder member and a lower cylinder member whose end portions are engaged and integrated with each other, and the upper cylinder member is provided at its upper end with a retaining collar portion. Is provided, and the lower cylindrical member is provided with a retaining collar at its lower end.

  For this reason, even though the rotating cylinder member has a retaining collar on the upper and lower sides, the rotating cylinder member with the retaining collar is attached to the impeller because it is divided in two. Can be easily attached to.

  In particular, when the upper and lower cylindrical members are manufactured by injection molding made of synthetic resin, if the upper and lower cylindrical members have the same configuration and can be used together, only one type of injection mold is required. Therefore, the manufacturing cost can be reduced as compared with the case where a plurality of members having different lengths are designed and manufactured.

(5) Further, in order to employ a configuration in which a three-dimensional impeller is formed using a single impeller forming sheet provided with appropriate cuts, the light reflecting surface is a reflecting surface having a specular gloss. An impeller having these light reflecting surfaces that can easily be configured, configured as a reflecting surface that has fine irregularities on the surface and diffusely reflects light, or changes the coloring state of the light reflecting surface. Can be formed at low cost.

  Therefore, it is possible to prevent the flying of birds by effectively stimulating the bird's vision by setting the change in light reflection intensity and the color change of light as required, or effectively preventing the flying of insects It is possible to provide a flying prevention device that can be used.

(6) The attached portion is configured by a support member that is attached to the upper portion of the support and has an upper end opening hole portion, and the support shaft portion has a round shaft shape that is long in the vertical direction. The screw shaft projecting from the lower end is screwed into the hole, and the upper end of the support shaft is provided with a knob concentric with the screw shaft, and the knob is rotated. Thus, the screw shaft portion can be screwed into the hole portion, and the support shaft portion formed between the female screw portion and the knob portion in the tightened state is inserted into the circular insertion of the rotary cylinder member. When configured so as to be inserted into the hole, the support shaft member can be easily and reliably attached to the mounted portion, and the support shaft member can be stably held in an upright state. Thus, there is an advantage that the rotating operation of the windmill can be stably performed.

It is a perspective view which shows the flying prevention apparatus which concerns on this invention in the use condition. FIG. A perspective view showing a state in which the support shaft portion of the support shaft member is inserted into the circular insertion hole of the rotating cylinder member, and the attachment portion of the support shaft member is attached to the mounted portion, and the cylindrical portions of the upper and lower cylindrical members It is sectional drawing and a perspective view which shows the engagement state of the edge parts of an upper and lower cylinder member. It is the perspective view which shows the upper and lower cylinder members which comprise a rotating cylinder member with a spindle member, and the perspective view which expands and shows the edge part of an upper and lower cylinder member. It is a perspective view which shows the supporting member for attaching a flying prevention apparatus. It is explanatory drawing explaining the connection point of the support | pillar with respect to a supporting member. FIG. The support shaft portion of the support shaft member is inserted into the turn 10 member obtained by engaging and integrating the end portions of the upper and lower tube members, and the screw shaft portion forming the lower end portion of the support shaft member is screwed into the tube portion of the support member. It is a front view which shows a state. It is an enlarged view of the engagement part between the end parts. It is a side view shown in the state where the rotating cylinder member formed by engaging and integrating the end portions of the upper and lower cylinder members was mounted on the impeller. It is a top view which shows an impeller formation sheet. It is a partial cross section front view explaining the windmill assembly process which inserts an upper and lower cylinder member in the engagement penetration hole of an impeller. It is sectional drawing explaining the engagement effect | action which stops rotation of the engagement penetration hole of an impeller, and the engagement shaft part of a rotation cylinder member. It is a disassembled perspective view explaining the flying prevention apparatus which forms the through-hole provided in the said impeller formation sheet | seat in hexagon shape, and comprises the cross-sectional external shape of the cylinder part of an upper and lower cylinder member in hexagon shape. It is a top view which shows the impeller formation sheet which comprises the impeller. It is sectional drawing explaining the engagement effect | action which stops rotation of the engagement penetration hole of an impeller, and the engagement shaft part of a rotation cylinder member. It is a perspective view which shows the other aspect of the to-be-attached part for attaching the attachment part of a spindle member. It is a perspective view which shows an example of the conventional bird flight prevention apparatus. It is a side view which shows the other example of the conventional bird flight prevention apparatus.

  1 and 2, a flying prevention apparatus 1 according to the present invention includes a light-reflective windmill 4 that can rotate around an axis L1 in the vertical direction through a rotating cylinder member 3 through which a support shaft member 2 is inserted. As for the impeller 5 which comprises this windmill 4, the whole front and back has light reflectivity.

  As shown in FIGS. 3 to 4, the support shaft member 2 is provided with an attachment portion 9 to the attached portion 7 at the lower end of the support shaft portion 6 having a long circular shaft shape in the vertical direction, and the support member 9. A knob portion 10 is provided at the upper end of the shaft portion 6. In the present embodiment, the mounted portion 7 is constituted by a support member 13 that is fixed to the upper portion 12 of the column 11 as shown in FIGS.

  As shown in FIGS. 2 and 5, the support member 13 protrudes downward (downward as viewed in the vertical direction) at the required side portion 16 of the upper piece 15 having a flat plate shape, for example. A downward projecting support piece 19 for supporting the one side portion 17 is provided. An upper holding piece 22 is provided on one of the front and rear edges 20, 21 (for example, the front edge) 20 of the downward projecting support piece 19 so as to be positioned on the upper portion thereof, and the other one. The lower holding piece 23 is provided at the lower portion of the edge (rear edge) 21, and a required gap 25 is provided between the upper and lower holding pieces 22, 23. The size of the gap 25 is such that the upper portion 12 of the support column 11 is moved from the front edge 20 side where the upper holding piece 22 is provided in the gap 25, as indicated by a one-dot chain line in FIG. The lower holding piece 23 is set so that it can be inserted in the lateral direction toward the rear edge 21 side.

  In this embodiment, as shown in FIG. 1, the vertical length of the upper end cap 27 fitted between the upper piece 15 and the upper holding piece 22 is fixed to the upper end portion of the column 11. A large gap 29 is provided.

  In this embodiment, the lower holding piece 23 has a U-shaped cross section as shown in FIGS. 2 and 5, and the lower holding piece 23 and the lower part of the downward projecting support piece 19 30, a cylindrical gripping portion 33 having a C-shaped cross section that can elastically grip the portion 32 (FIG. 1) on the other edge 21 side of the upper portion 24 of the column 11 is formed. The gripping portion 33 has a cylindrical shape in which the peripheral surface portion on the side where the front edge portion 20 is present opens in the axial direction of the cylindrical gripping portion 33 and the opening 36 can be elastically expanded. As shown in FIG. 5B, the lower opening portion 37 of the opening 36 has a substantially equal width, but the upper opening portion 38 gradually expands toward the upper end. In the present embodiment, as shown in FIG. 5, reinforcing ribs 40 and 40 are provided in the circumferential direction above and below the outer peripheral surface of the cylindrical gripping portion 33, and the portion between the upper and lower reinforcing ribs 40 and 40 is compared. This is for facilitating the elastic expansion of the opening 36 while ensuring the strength of the cylindrical holding portion 33 as required.

  In this embodiment, the upper holding piece 22 has a U-shaped cross section as shown in FIG. 5, and supports the portion of the upper portion 12 on the one edge 20 side. Has been made.

  On the upper portion 43 (upper surface 43a in the present embodiment) of the upper piece 15, a cylindrical portion 47 having a hole portion 46 whose axis is in the vertical direction and whose upper end 45 is opened is projected. The attaching portion 9 is configured as a screw shaft portion 49 to be screwed into the hole portion 46, and the screw shaft portion 49 protrudes concentrically from the lower end of the support shaft portion 6 in a series. The screw shaft portion 49 is screwed into the tube portion 47 while forming a female screw on the inner peripheral surface of the hole portion 46 by inserting the lower end portion of the screw shaft portion 49 into the upper end 45 and rotating the knob portion 10. It is made to be.

  Next, based on FIGS. 6-7, an example of the point which connects the upper part 12 of the said support | pillar 11 to the said supporting member 13 is demonstrated. First, in a state where the portion of the support member 13 on the cylindrical portion 47 side is grasped with one hand, the support 11 is grasped with the other hand, and as shown by a one-dot chain line in FIG. Is inserted between the upper and lower holding pieces 22 and 23 in the lateral direction. Thereafter, as shown by an arrow F1 in FIG. 6, the support column 11 is rotated in a direction in which the upper end 50 approaches the holding piece 22 side. This rotation can be performed with the upper portion 51 of the upper portion 12 being supported by the lower end edge 52 of the upper holding piece 22, and as a result, as shown in FIG. The lower portion 53 may be in contact with the inclined edge 34 of the upper opening portion (expanding portion) 38 of the opening portion 36. In this state, when the support column 11 is further rotated in the direction of the arrow F1, it is shown by a two-dot chain line in FIG. 6, and as shown in FIG. As shown in FIG. 1, the lower portion 53 of the portion 12 is fitted into the cylindrical holding portion 33 through the opening 36 while elastically expanding the opening 36 (FIG. 5). it can. In this state, the upper end cap 27 is positioned in a gap 29 between the upper piece 15 and the upper holding piece 22 as shown in FIG.

  Next, the configuration of the rotating cylinder member 3 will be described. The rotary cylinder member 3 is provided with retaining hooks 66 and 75 at the upper and lower ends of the engagement shaft portion 84, and is made of a synthetic resin made of polypropylene or the like, and is manufactured by injection molding. As shown in FIGS. 3 to 4 and FIG. 8, the rotating cylinder member 3 is provided between the cylinder portion 47 and the knob portion 10 of the support shaft member 2 in the tightened state as described above. A circular insertion hole 56 through which the supporting shaft portion 6 forming the above can be inserted is provided, and the outer cross-sectional outer shape of the engaging shaft portion 84 is non-circular (in the present embodiment, elliptical). More specifically, as shown in FIGS. 3 to 4, the rotary cylinder member 3 is divided into an upper cylinder member 60 and a lower cylinder member 61 in which end portions 57 and 59 are engaged and integrated with each other. ing.

  As shown in FIGS. 3 to 4 and FIGS. 8 to 9, the upper cylindrical member 60 can insert the support shaft portion 6 (in this embodiment, it can be inserted from the tip 62 of the screw shaft portion 49). In addition, a retaining collar 66 (which has a disk shape in this embodiment) is provided around the upper end of the cylindrical portion 65 having the upper insertion hole 63 formed of a circular insertion hole, and the lower end of the cylindrical portion 65 The portion 59 is provided with a lower split piece 67 having a required width cut away (in a removed state) in a direction perpendicular to the axis L3 of the cylindrical portion 65. In the present embodiment, the cut surface 68 by the cutting is formed as a half-cut surface by being cut out in the direction perpendicular to the axis of the cylindrical portion 65 from the tip of the ellipse viewed in the major axis direction. Yes. The upper part of the lower split piece 67 is cut off in the orthogonal direction to form a lower engagement groove 69 composed of opposing engagement grooves 64, 64. The lower portion is a lower engaging projection 71 composed of engaging pieces 70 and 70 facing each other.

  Further, the lower cylindrical member 61 can be inserted through the support shaft portion 6 as shown in FIGS. 3 to 4 and FIGS. 8 to 9 (in this embodiment, it can be inserted from the tip 62 of the screw shaft portion 49). In addition, a retaining collar 75 (which has a disk shape in this embodiment) is provided around the lower end of the cylindrical portion 73 having the lower insertion hole 72 formed of a circular insertion hole, and an upper end of the cylindrical portion 73 The portion 57 is provided with an upper split piece portion 76 in which a required width is cut out (removed) in a direction orthogonal to the axis L4 of the cylindrical portion 73. In this embodiment, the cut surface 74 by the cutting is formed as a half-cut surface by being cut out in the direction perpendicular to the axis L4 of the cylindrical portion 73 from the tip of the ellipse viewed in the major axis direction. ing. The lower portion of the upper split piece 76 is cut away in the orthogonal direction to form an upper engaging groove 78 comprising opposing engaging grooves 77, 77. The upper engaging groove 78 The upper part of the upper part is an upper engaging protrusion 80 made of opposing engaging pieces 79, 79.

  If the upper and lower cylindrical members 60 and 61 have the same shape and dimensions and can be used together, only one type of injection mold is required, so two members with different lengths are designed and manufactured. As a result, the manufacturing cost can be reduced.

  As shown in FIG. 10, the upper and lower cylindrical members 60 and 61 are engaged and integrated with each other at the end portions 57 and 59. More specifically, the engagement pieces 70, 70 constituting the lower engagement protrusion 71 are fitted into the engagement grooves 77, 77 constituting the upper engagement groove 78, and the upper engagement In a state where the mating protrusion 80 is fitted in the lower engagement groove 69, the axes L3 and L4 (FIG. 4) of both are matched and integrated. In this way, the end portions 57 and 59 are easily separated from each other. However, as shown in FIG. 6 is inserted from the tip 62 of the screw shaft portion 49, the upper and lower cylindrical members 60, 61 are restrained from rotating in the circumferential direction. In addition, since the separation of the two in the length direction becomes impossible, the length of the rotary cylinder member 3 is fixed.

  Further, the engagement shaft portion 84 formed between the upper and lower retaining flange portions 66 and 75 of the rotary cylinder member 3 is a vertical axis of the impeller 5 constituting the windmill 4 as shown in FIG. The engagement insertion hole 82 (FIG. 2) provided along L1 is inserted, and the engagement insertion hole 82 is a non-circular hole through which the engagement shaft portion 84 is inserted substantially closely (this embodiment). Are configured as elliptical holes). The impeller 5 is constrained by the upper and lower retaining flange portions 66 and 75 so as not to fall off the rotary cylinder member 3.

  The impeller 5 is configured by using a single resin impeller forming sheet 83 having a square shape, the front and back surfaces of which are formed as light reflecting surfaces 81, as shown in FIG. The reflection surface 81 is formed as a silver surface by aluminum vapor deposition, for example. The impeller forming sheet 83 is configured by inserting slit-shaped cuts 88 that form straight lines from the four edge portions (corner portions in this embodiment) 87, 87, 87, 87 toward the center portion. Further, an elliptical insertion hole 91 is provided in an end portion 90 of each blade piece 89 between adjacent cuts 88 and 88. Further, an elliptical insertion hole 92 is also provided in the central portion of the impeller forming sheet 83. As shown in FIG. 2, the impeller 5 includes the four blade pieces 89, 89, 89 so that the insertion hole 92 at the center and the insertion hole 91 at the end portion of the blade piece 89 are aligned with each other. , 89 are sequentially elastically bent and their end portions 90, 90, 90, 90 are overlapped. Thereby, as shown in FIG. 12, the insertion holes 91, 91, 91, 91 communicate with each other at the overlapping portion in a matched state. Then, when these insertion holes 91, 91, 91, 91 are aligned with the central insertion hole 92, the engagement insertion hole 82 shown in FIG. 2 is formed.

  The diameter of the three-dimensional impeller 5 thus configured is set to about 23 cm in this embodiment. In order to configure the wind turbine 5 using the impeller 81, the lower end side 95 of the upper cylindrical member 60 is directed downward from the upper end 96 of the engagement insertion hole 82 as shown by an arrow in FIG. In addition, the upper end side 97 of the lower cylindrical member 61 is inserted upward from the lower end 99 of the engagement insertion hole 82, and as shown in FIG. Make it. In this state, as shown in FIG. 8, the support shaft portion 6 is inserted into the upper insertion hole 63 of the upper cylindrical member 60 from the tip 62 (FIG. 4) of the screw shaft portion 49 and the lower insertion portion. When the screw shaft portion 49 is protruded from the lower end 100 of the lower insertion hole 72 by being also inserted into the hole 72, the upper and lower cylindrical members 60 and 61 are prevented from rotating in the circumferential direction and in the length direction. Separation becomes impossible. The impeller 5 is constrained by the upper and lower retaining ribs 66 and 75 so as not to fall off the rotating cylinder member 3, and the flying prevention device 1 including the windmill 4 shown in FIG. 1 is configured. It will be. The rotating cylinder member 3 has retaining hooks 66 and 75 at both ends, but the rotating cylinder member 3 is divided into two upper and lower cylinder members 60 and 61. The rotating cylinder member 3 with the retaining hooks 66 and 75 can be easily attached to the impeller 5.

  1 and 8, the screw shaft portion 49 is screwed into the hole portion 46 of the cylindrical portion 47, so that the flying prevention device 1 is attached to the attachment portion 9 (screw shaft portion 49) via the attachment portion 9 (screw shaft portion 49). The state attached to the part 7 (in this embodiment, the column member 13 fixed to the upper portion 12 of the column 11) is shown. In the present embodiment, the support shaft member 2 is brought into the standing state by screwing the screw shaft portion 49 at the lower end thereof into the hole portion 46, so that the standing can be easily and stably performed. Then, in a state where the screw shaft portion 49 is screwed into the hole portion 46 and tightened, the length of the support shaft portion 6 is formed slightly longer than the length of the rotating cylinder member 3. Further, the upper and lower retaining collar portions 66 and 75 of the rotary cylinder member 3 come into contact with the lower surface portion 10a (FIG. 8) of the knob portion 10 and the upper surface portion 47a (FIG. 8) of the cylinder portion 47, and fall off. Is prevented.

  When the flying prevention device 1 having such a configuration is used, the rotary cylinder member 3 can rotate with the support shaft portion 6 in a stationary state as the axis of rotation. Since the engagement shaft portion 84 having an elliptical cross-sectional outer shape is inserted almost closely into the elliptical engagement insertion hole 82 provided in the impeller 5, the impeller 5 and the The rotating cylinder member 3 can rotate integrally in the direction of the arrow by the engaging action shown in FIG. 13 that prevents the engaging shaft portion 84 and the engaging insertion hole 82 from rotating. In this engaged state, the elliptical outer peripheral surface 84 a of the engagement shaft portion 84 softly contacts the elliptical inner peripheral edge portion 82 a of the engagement insertion hole 82.

  Therefore, the insertion holes 91 and 92 of the impeller 5 do not come into contact with the support shaft portion 6 in a stationary state, and the inner peripheral edge of each of the insertion holes 91, 91, 91, 91, 92 is the impeller 5. It is possible to prevent the windmill 4 from being damaged, such as being worn during the rotation, and cracking of the inner peripheral edge. Note that when the impeller 5 rotates, the engagement shaft portion 84 and the insertion holes 91, 91, 91, 91, 92 are in an engaged state. As shown in FIG. 13, the cross-sectional outer shape of the concentric portion 84 is formed in an elliptical shape, and the insertion holes 91, 91, 91, 91, 92 of the impeller 5 are also formed in an elliptical shape corresponding thereto. In addition, there is no corner portion on the outer peripheral surface of the engagement shaft portion 84 or on the inner peripheral edge portion of the engagement insertion hole 82. For this reason, it is difficult for a concentrated load to be applied to both engaging portions, and damage to these insertion holes 91 and 92 can be prevented.

  The flying prevention apparatus 1 having the above-described configuration is installed, for example, in a cultivation section for plants such as tomatoes, pepper, fruit trees. This installation is performed so that the windmill 5 can rotate at a height position about the upper end height at the stage of seedling or fruiting of these plants. FIG. 1 shows the case where the lower end portion of the support column 11 is pierced into the soil and the support column 11 is erected, and the lower portion thereof is omitted. The number of standing columns 11 and their standing positions are set as required in consideration of the area of the target cultivation section and the cultivation state of the plant.

  When the flying prevention device 1 is installed in this way, the light-reflective windmill 4 can easily rotate around the vertical axis by receiving wind. Since the wind turbine 4 does not rotate around the horizontal axis as in Patent Document 2, but rotates around the vertical axis, the wind turbine 4 can be rotated by effectively using the wind regardless of the direction of the wind. It can be rotated even in light winds. By this rotation, sunlight on the light reflecting surface 81 of the windmill 4 is efficiently reflected, and light is diffused in all directions starting from the windmill 4. Since the windmill 4 rotates about the vertical axis, it is possible to diffuse light in all directions around the windmill 4 instead of light diffusion in a specific direction as in Patent Document 2. It is. Such a light diffusing action can effectively prevent the arrival of birds such as crows, and can also be expected to prevent insects from flying, and can prevent damage such as damage caused by harmful birds and insects.

  In consideration of the fact that insects do not fly in strong winds but fly in light winds, the fact that the windmill 4 can rotate even in light winds is effective in avoiding flying insects.

  The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) If the impeller forming sheet 83 used to constitute the impeller 5 can constitute an impeller that can be rotated by receiving wind, the outer shape of the impeller forming sheet 83 exhibits the above-described square shape, It may be a circle or an ellipse. Further, the notch 88 may not be the above-described linear slit, and the shape thereof may be a curved shape or the like in addition to the linear shape. The cut may be a simple cut line in addition to the slit shape. Further, the shape of the blade piece 89 formed between the adjacent cuts 88, 88 is not specified, and the number of the blade pieces may be set to a plurality, and the wind turbine 4 that can rotate around the vertical axis is configured. As much as possible, the number is set to a plurality of two, three, five, etc. in addition to the four. The size of the blade piece 89 can be set as required according to the purpose of use of the windmill.

(2) The light reflectivity of the light-reflective windmill 4 is such that birds and insects can be prevented from flying in addition to the silver light-reflecting surface 81 as shown in the above embodiment. If the light can be diffused, the colored state of the light reflecting surface 81 is not specified.

  In addition, the light reflecting surface 78 may be formed on the entire front and back surfaces of the impeller forming sheet 83 as long as it can effectively diffuse the light. You may form by sticking reflective materials, such as a seal form which has the required shape which has reflectivity.

(3) When the impeller 5 is configured using a single impeller-forming sheet 83, the reflective surface 81 may be configured as a reflective surface that has fine irregularities on the surface and diffuses light. .

(4) The cross-sectional outer shape of the cylindrical portions 65 and 73 constituting the rotating cylindrical member 3 is such that the insertion holes 91 and 92 are damaged by the engagement between the engagement shaft portion 84 and the engagement insertion hole 82. Unless invited, various non-circular shapes such as those exhibiting an elliptical shape, a polygonal shape such as a triangular shape, a quadrangular shape, and a hexagonal shape, and a portion having a circular arc shape can be set. The impeller forming sheet 83 constituting the impeller 5 can be provided with an insertion hole 82 as a non-circular hole through which the cylindrical portions 65 and 73 can be inserted substantially closely.

  FIG. 14 shows a case where the cross-sectional outer shape of the cylindrical portions 65 and 73 is formed in a hexagonal shape, and the insertion holes 91 and 92 are formed in a hexagonal shape as shown in FIGS. FIG. 16A shows a state where the rotary cylinder member 3 having such a configuration is inserted through the engagement insertion hole 82, and FIG. 16B shows the engagement insertion hole 82 of the impeller 5 and the rotation cylinder. It is explanatory drawing explaining the engagement effect | action which prevents the engagement shaft part 84 of the member 3 from rotating.

  The rotary cylinder member 3 is constructed by engaging and integrating the end portions 57 and 59 of the upper and lower cylinder members 60 and 61, but the lengths of the upper and lower cylinder members 60 and 61 are different. May be.

(5) The attachment portion 9 provided at the lower end portion of the support shaft member 2 is configured as a press-fit shaft that is press-fitted into the attachment portion 7, and is attached to the attachment portion 7 so that the support shaft member As long as 2 can be a stable standing state, it can be configured in various ways.

  The mounted portion 7 shown in FIG. 17 is configured by fixing a mounting piece 102 provided with a cylindrical portion 47 having a hole 46 to a crosspiece 105, and the shaft member 2 is inserted into the hole 46. The screw shaft portion 49 is screwed.

(6) The knob portion 10 provided at the upper end of the support shaft portion 6 is bonded by pressing the upper end portion of the support shaft member 2 into a fixing hole provided in the lower surface portion of the knob portion 10, or The upper end portion may be a screw shaft portion, and the screw shaft portion may be screwed into the lower surface portion of the knob portion 10. And if this knob | pick part 10 does not have trouble in performing the screwing in to the said hole part 46, the press-fit operation to the said fixed hole, etc., the magnitude | size and form are not specified to what was illustrated.

(7) In the present invention, inserting the engagement shaft portion 84 into the engagement insertion hole 82 substantially closely means that the engagement shaft portion 84 is inserted into the engagement insertion hole 82 in a close state. For example, as shown in FIG. 13, this includes a loose insertion state in which the engagement shaft portion 84 is inserted into the engagement insertion hole 82 with a margin.

(8) The mounted portion 7 can be set as required according to the application of the apparatus according to the present invention. For example, when preventing the arrival of birds in a work place for drying food such as seafood in the sun, it is a mounted part provided on a support stand such as a crossbar arranged along the work place. Also good.

(9) The support column 11 may be stabbed into the soil of a flower pot or a planter, or may be supported in a standing state by a support portion provided on a pedestal installed on a concrete surface, for example.

(10) The hole 46 provided in the upper portion 43 of the support member 13 may be configured as a screw hole. Further, the hole portion 46 may be provided so as to open on the upper surface of the upper portion 43 in addition to being configured as the hole portion 46 provided in the cylindrical portion 47 as described above. Alternatively, it may be provided on the side of the upper portion 43 or the like.

DESCRIPTION OF SYMBOLS 1 Flying prevention apparatus 2 Support shaft member 3 Rotating cylinder member 4 Windmill 5 Impeller 6 Support shaft part 7 Mounted part 9 Attachment part 10 Picking part 11 Support | pillar 13 Support member 56 Cylindrical member 61 on the circular insertion hole 60 Lower cylinder Member 62 Upper insertion hole 64 Engagement groove 65 Cylindrical part 66 Retaining prevention hook part 67 Split piece part 68 Split surface 69 Lower engagement groove part 70 Engagement piece 71 Lower engagement protrusion 72 Lower insertion hole 73 Cylindrical part 75 Removal Split piece portion on stopper rod portion 76 Engagement groove portion on engagement groove 78 Engagement projection portion on engagement piece 80 Engagement insertion hole 83 Impeller formation sheet 84 Engagement shaft portion 87 Corner portion 88 Cut 89 Blade piece 91 Insertion hole 92 Insertion hole 93 Communication insertion hole

Claims (5)

A windmill-type harmful bird / pest flying prevention device comprising a light-reflective windmill that can rotate around an axis in the vertical direction through a rotating cylinder member through which a support shaft member is inserted,
The support shaft member is provided with a mounting portion to the attached portion at the lower end of the support shaft portion having a round shaft shape that is long in the vertical direction, and a knob is provided at the upper end of the support shaft portion,
The rotating cylinder member is divided into an upper cylindrical member and a lower cylindrical member whose end portions are engaged and integrated with each other, and the upper cylindrical member is a circular insertion through which the support shaft portion can be inserted. A retaining collar is provided at the upper end of the cylindrical portion provided with the upper insertion hole made of a hole, and the required width of the lower end portion of the cylindrical portion is cut in a direction perpendicular to the axis of the cylindrical portion. The upper part of the lower part of the lower part is cut out in the orthogonal direction to form a lower engaging groove part composed of opposing engaging grooves. The lower part of the groove is a lower engaging protrusion made of opposing engaging pieces,
The lower cylindrical member is provided with a retaining collar at the lower end of the cylindrical portion provided with a lower insertion hole including a circular insertion hole through which the support shaft portion can be inserted, and an upper end of the cylindrical portion. The required width of the portion is cut off in the direction perpendicular to the axis of the cylindrical portion to form an upper split piece portion, and the lower portion of the upper split piece portion is cut away in the orthogonal direction to face each other. The upper engaging groove portion is made of an engaging groove, and the upper portion of the upper engaging groove portion is an upper engaging protrusion made of an opposing engaging piece,
While the lower engaging protrusion is fitted into the upper engaging groove, and the upper engaging protrusion is fitted into the lower engaging groove, the upper and lower cylindrical members have both axes aligned. The upper and lower cylinder members are formed by being inserted into the circular insertion hole through which the rotating cylinder member communicated is formed so as to be integrated. The rotation in the circumferential direction is restricted and the separation in the length direction is impossible, and the upper and lower cylinder members of the rotary cylinder member are along the rotation axis of the impeller constituting the windmill. The upper and lower cylinder members are prevented from rotating in the circumferential direction and cannot be separated from each other in the length direction. Between the upper and lower retaining ribs of the member, the cross-sectional outer shape is non-circular An engagement shaft portion is formed, and the engagement shaft portion is inserted into an engagement insertion hole provided along the rotation axis, and the engagement insertion hole is formed by the engagement shaft portion. It is configured as a non-circular hole that is inserted substantially closely, and the impeller is constrained by the upper and lower retaining collars so as not to fall off the rotating cylinder member,
In addition, the impeller forms the engagement insertion hole in each end portion of a plurality of blade pieces which are formed by appropriately cutting a single impeller forming sheet from its edge toward its central portion. A non-circular insertion hole is provided, and a non-circular insertion hole for forming the engagement insertion hole is also provided in the central portion of the impeller forming sheet, and the insertion hole provided in the central portion; The blade piece is bent so as to match the insertion holes provided at the end portions of the blade pieces, and the engagement insertion holes are formed by matching all the insertion holes. Windmill shaped pests and pests prevention device.   The attached portion is configured by a support member attached to the upper portion of the support column, and an upper end opening hole is provided in the upper portion of the support member, and the support shaft portion is arranged in the vertical direction. The screw shaft portion provided at the lower end thereof is screwed into the hole portion, and a knob portion is provided concentrically with the screw shaft portion at the upper end of the support shaft portion. The screw shaft portion can be screwed into the hole portion by rotating the shaft, and in this state, the support shaft portion between the screw shaft portion and the knob portion is rotated. 2. The windmill type bird / insect flying prevention device according to claim 1, wherein the wind turbine type bird / insect flying prevention device is inserted into the circular insertion hole of the cylindrical member.   The wind turbine-type harmful bird / insect flying prevention device according to claim 1, wherein the upper and lower cylindrical members have the same configuration and can be used together.   The cross-sectional outer shape of the rotating cylinder member has an elliptical shape, and the insertion hole provided in the impeller forming sheet is configured as an elliptical hole that can be inserted substantially closely through the rotating cylinder member. The windmill-type harmful bird / pest flying prevention device according to claim 1.   2. The windmill-type insect pest / insect prevention apparatus according to claim 1, wherein the impeller-forming sheet is formed by using a resin sheet, and the front and back surfaces thereof are formed as light reflecting surfaces.

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