JP7443412B2 - Bird net fasteners - Google Patents

Description

The present invention relates to a bird-proofing net fastener for fixing a bird-proofing net to a wall, ceiling, pillar, etc. of a building.

Conventionally, there has been a problem in which birds such as crows, pigeons, sparrows, and swallows build nests and live on the ceilings of building balconies and pollute the surrounding area by excreting feces. To deal with this, bird-proof nets are put up to prevent birds from entering. Bird net fasteners are used to fix such bird nets to walls, ceilings, pillars, etc. of buildings.

For example, Patent Document 1 below discloses a bird-prevention net fastener for attaching a bird-prevention net to an object such as a wall, which includes a base part fixed to the object, and a bird-prevention net attached on the base part. A bird-prevention net fastener is disclosed, which is characterized in that a hook portion having an insertion groove formed at the end of the bird net is integrally molded.

Further, Patent Document 2 below discloses that the main body has a comb-like hook integrally formed upward from the lower edge of the base, which is a part of the main body, to form a U-shaped side surface, and the back surface of the base is a fixed surface. A bird net installation aid is disclosed.

Japanese Patent Application Publication No. 2015-144595 Japanese Patent Application Publication No. 2000-210003

However, the bird-proofing net fastener described in Patent Document 1 has the possibility that the end of the bird-proofing net may come off from the insertion groove when force is applied to the bird-proofing net in various directions due to wind or the like. Ta.

In addition, since the bird prevention net installation aid described in Patent Document 2 has a comb-like hook, when the end of the bird prevention net is hooked on or removed from the comb-like hook, the comb-like There was a possibility of it getting tangled with the hook.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a clasp for a bird-prevention net with a simple structure, which can easily hook and remove the ends of the bird-prevention net, and which can hold the bird-prevention net so that it does not come off. The aim is to provide the tools.

In order to achieve the above object, the present invention provides a fastener formed of a spring steel plate for fixing a bird prevention net, comprising:
a board portion that is fixed with its back side in contact with the surface to be mounted;
a hook portion extending in a band shape from a predetermined location on the edge of the substrate portion and bent toward the surface side of the substrate portion;
The hook portion includes a W-shaped bent portion that extends in a band shape from a predetermined location on the edge of the substrate portion and is bent in a W-shape when viewed from the side, and a W-shaped bent portion that extends to the front surface side of the substrate portion through the W-shaped bent portion. It has a folded part that is folded back, and a V-shaped bent part that is bent in a V-shape in a side view from the tip of the folded part, and the corner part of the V-shaped bent part is bent by the spring force of the spring steel plate. It is pressed against the surface of the
The present invention provides a fastener for a bird prevention net, characterized in that a plurality of fixing holes are formed in the substrate part.

In the bird-prevention net fastener of the present invention, the inclination angle of the V-shaped bent portion of the hook portion on the tip side with respect to a perpendicular line that is perpendicular to the surface of the substrate portion and passes through the bent corner portion is 20 to 20. The angle of inclination on the proximal end side is preferably in the range of 20 to 60 degrees.

Further, it is preferable that a bending angle toward the surface of the substrate portion formed by the tip of the folded portion and the base end of the V-shaped bent portion is in a range of 90 to 150 degrees.

Further, the substrate and the hook portion are integrally formed of a spring steel plate with a thickness of 0.2 to 2 mm, and the width of the hook portion in the direction perpendicular to the extending direction is 2 to 25 mm. It is preferable.

Furthermore, it is preferable that a widthwise corner portion of the inner surface of the hook portion facing the substrate has a chamfered shape.

According to the bird-proofing net fastener of the present invention, by bringing the back side of the board into contact with the mounting surface on which the bird-proofing net is to be attached, and fixing it with adhesive, screws, nails, or other fixing devices, A fastener can be attached to the surface to be attached. When adhesive is used, the adhesive overflows from the holes in the board to the surface side and solidifies, creating an anchor effect. When fixing with fixing devices such as screws and nails, the adhesive Screws, nails, etc. can be inserted through the holes.

When the wire of the bird prevention net is hooked onto the hook and pulled, the wire is guided by the slope at the tip of the hook and slips between the surface of the board and the V-shaped bent corner of the hook. , can fit inside the hook part and support the bird prevention net.

In addition, when it becomes necessary to remove the bird prevention net when replacing it, etc., by pulling the bird prevention net toward the surface to which it is attached and pulling it toward the tip of the hook, the wire held by the hook can be removed from the hook. It is guided by the inner inclined surface and passes between the surface of the substrate part and the V-shaped bent corner of the hook part and exits to the outside, so it can be removed relatively easily without breaking the wire.

As a result, the work time for installing and removing the bird-prevention net can be significantly shortened compared to when conventional fasteners are used, and construction costs can be reduced.

Further, the hook portion is formed of a spring steel plate, and is folded back to the surface side of the substrate portion through a bent portion forming a W-shape when viewed from the side, and the folded portion is bent into a V-shape when viewed from the side. Since the bent corner is in pressure contact with the surface of the board, the V-shaped bent corner is relatively strongly pressed against the surface of the board, so that external forces such as strong winds will not be applied when the bird net is attached. Even if the wires of the bird prevention net are added to the hook portion, the wire rods of the bird prevention net can be prevented from easily coming off from the hook portions, and the bird prevention net can be stably held.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows one Embodiment of the fastener for bird prevention nets of this invention. It is a front view of the fastener for the bird prevention net. It is a side view of the fastener for the bird prevention net. 4 is a partially enlarged sectional view taken along the line AA in FIG. 3. FIG. It is an explanatory view showing an example of construction in which a bird prevention net is stretched and fixed under the eaves of a wooden house. It is an explanatory diagram showing an example of construction in which a bird prevention net is stretched and fixed under the ceiling of a balcony of an apartment. FIG. 2 is a side sectional view showing a state in which the bird-prevention net fastener is fixed to a wall via an adhesive.

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of a fastener for a bird net according to the present invention.

As shown in FIG. 1, this bird-prevention net fastener 100 includes a substantially square board part 101 with rounded corners, and a board part 101 that extends from the center of one side of the board part 101. It has a hook portion 102 formed by being folded back to the side.

The bird-prevention net fastener 100 is integrally formed by punching a spring steel plate into a predetermined shape and bending it. Note that the term "spring steel sheet" refers to a steel sheet processed by hot forming or cold forming to have a high yield point and tensile strength. Stainless steel is preferably used as the steel material for the spring steel plate.

Referring also to FIG. 3, the hook portion 102 has a W-shaped bent portion 103 that extends in a band shape from the center of one side of the substrate portion 101 and is bent in a W-shape when viewed from the side. In the present invention, a side view means viewing from the side of the hook portion 102, and in this embodiment, means viewing along the above-mentioned one side of the substrate portion 101 in a direction parallel to the plane of the substrate portion 101. .

The hook portion 102 has a folded portion 104 that is folded back toward the surface side of the substrate portion 101 via the W-shaped bent portion 103 . In this embodiment, the folded portion 104 is folded back substantially parallel to the substrate portion 101, but the folded portion 104 is not necessarily parallel to the substrate portion 101. Preferably, the angle is parallel to the substrate portion 101, or the angle is inclined and extends in a direction slightly away from the substrate portion 101.

Further, the hook portion 102 has a V-shaped bent portion 105 that extends from the tip of the folded portion 104 in a V-shaped shape when viewed from the side. The corner portion 106 of the V-shaped bent portion 105 is pressed against the surface of the substrate portion 101 by the elastic force of the spring steel plate. This pressure contact force is increased by the W-shaped bent portion 103.

As shown in FIG. 3, the inclination angle a of the distal end side 105a with respect to the perpendicular L which is perpendicular to the surface of the substrate part 101 and passes through the corner part 106 of the V-shaped bent part 105 of the hook part 102 is 20 to 80 It is preferably in the range of 30 to 60 degrees, and more preferably in the range of 30 to 60 degrees. As a result, when the wire rod 111 of the bird prevention net 110 is hooked, the wire rod 111 is guided by the inclined surface of the tip end side 105a and introduced between the board part 101 and the corner part 106 of the hook part 102, so that 101 and the corner 106 of the hook portion 102 and can be easily inserted into the hook portion 102.

Further, the inclination angle b of the base end side 105b with respect to the perpendicular line L is preferably in the range of 20 to 60 degrees, more preferably in the range of 20 to 40 degrees. This makes it possible to prevent the wire rod 111 held by the hook portion 102 from easily coming off even if an external force such as wind acts on the wire rod 111 in the attached state. When the bird prevention net 110 is removed, the wire rod 111 held by the hook part 102 is moved inside the hook part 102 by pulling the bird prevention net 110 toward the surface to which it is attached and pulling it toward the distal end of the hook part 102. It is guided by the slope of the wire rod 111 and passes through between the surface of the substrate portion 101 and the corner portion 106 of the V-shaped bent portion 105 of the hook portion 102 and exits to the outside. Can be removed.

Furthermore, it is preferable that the bending angle c formed by the tip of the folded part 104 and the proximal end 105b of the V-shaped bent part 105 toward the surface side of the substrate part 101 is in the range of 90 to 150 degrees, More preferably, the temperature is in the range of 100 to 130 degrees. As a result, when the wire rod 111 hooked on the hook portion 102 of the bird prevention net 110 is pulled by an external force such as wind, the wire rod 111 is moved to the corner portion 109 between the folded portion 104 and the V-shaped bent portion 105. Since it stops at the corner 106 of the V-shaped bent portion 105 and becomes difficult to move toward the corner 106, the hooked wire 111 can be prevented from coming off.

Further, as shown in FIG. 4, which is a partially enlarged cross-sectional view taken along the line AA in FIG. It is preferable to do so. The chamfered portion 107 is formed on the entire inner corner portion of both sides of the hook portion 102 . Thereby, when the wire rod 111 of the bird prevention net 110 is hooked onto or removed from the hook portion 102, it is possible to prevent the wire rod 111 from hitting the inner corners of both sides of the hook portion 102 and being cut. Note that the chamfered portion 107 may be a tapered surface or an R-shaped curved surface.

In addition, the entire bird-preventing net fastener 100 is barrel-polished so that the edges of the plate material are rounded to prevent them from being cut even if fingers hit the edges.

As shown in FIG. 2, the width W of the hook portion 102 is preferably in the range of 2 to 25 mm, more preferably in the range of 8 to 20 mm. Further, the thickness of the spring steel plate of the hook portion 102 (in this embodiment, this is also the thickness of the entire spring steel plate constituting the bird prevention net fastener 100) is preferably 0.2 to 2 mm, and 0.3 mm. ˜1.5 mm is more preferable. Thereby, the rigidity of the hook part 102 and the pressing force of the corner part 106 of the hook part 102 against the surface of the substrate part 101 can be adjusted appropriately, and the wire rod 111 of the bird prevention net 110 can be easily inserted and difficult to come out. In addition to being able to provide a well-balanced effect, it is possible to prevent the hook portion 102 from deforming and opening even if a strong external force such as wind is applied.

A plurality of fixing holes 108 are formed in the substrate portion 101 . In the case of this embodiment, a total of five fixing holes 108 are formed, four located at the four corners of the substrate portion 101 and one at the center. This fixing hole 108 is designed to prevent the adhesive from overflowing to the front side through the fixing hole 108 when passing a fixing screw or fixing the back side of the board section 101 to the surface to be mounted using an adhesive. It solidifies and contributes to providing an anchoring effect.

Note that the shape of the substrate portion 101 is not limited to a square with rounded corners, but may also be a rectangle, a circle, a semicircle, or the like. The maximum diameter of the substrate portion 101 is not particularly limited, but is preferably 20 to 60 mm, more preferably 30 to 50 mm.

FIG. 5 shows an example of construction in which a bird-prevention net 110 is stretched and fixed under the eaves of a wooden house using this bird-prevention net fastener 100. The area under the eaves has a wall 120, a ceiling 121, and beams 122 and joists 123 that support the ceiling 121, but there are pigeons, crows, etc. in the corners and gaps between the ceiling 121 and the beams 122 and joists 123. Birds such as sparrows and swallows sometimes build nests and pollute the environment. Therefore, in this construction example, the ends of the bird prevention net 110 are fixed to the wall 120 with the bird prevention net fasteners 100, and the middle part of the bird prevention net 110 is fixed to the beam 122 etc. with the bird prevention net fasteners 100. It is fixed and constructed so that the lower part of the ceiling 121 is covered with a bird prevention net 110. In this case, the bird-proofing net fastener 100 is constructed by inserting the screw 124 through the fixing hole 108 formed in the center of the board part 101, and fixing the board part 101 of the bird-proofing net fastener 100 to the wall 120 or the screw 124. It is fixed to the ceiling 121. The bird-proofing net fastener 100 is held by hooking the wire 111 onto the hook portion 102 of the bird-proofing net fastener 100.

6 and 7 show an example of construction in which a bird-proof net 110 is stretched and fixed under the ceiling of a balcony of an apartment using this bird-proof net fastener 100. Since a waterproof layer is formed on the surfaces of the walls 120 and ceiling 121 of the balcony of an apartment, it is not preferable to make holes there with screws or the like. Therefore, in this construction example, an adhesive 125 is applied to the back side of the base plate 101 of the bird net fastener 100, and the back face of the base plate 101 is pressed against the wall 120 and fixed with adhesive. As a result, as shown in FIG. 7, the adhesive 125 flows out to the surface side of the substrate part 101 through the fixing hole 108, protrudes from the periphery of the fixing hole 108, and solidifies, so that an anchor effect is obtained and the substrate The portion 101 can be firmly fixed to the wall 120. The bird net 110 is stretched so as to cover the lower part of the ceiling 121 by hooking its ends onto the hook portions 102 of the bird net fasteners 100 fixed to the wall 120.

By using the bird prevention net fastener 100 of the present invention, when the wire rod 111 of the bird prevention net 110 is hooked onto the hook portion 102, the wire rod 111 is guided by the inclined surface of the tip side 105a of the V-shaped bent portion 105. Since the wire rod 111 is introduced between the surface of the substrate portion 101 and the corner portion 106 of the V-shaped bent portion 105, it is possible to easily insert the wire rod 111 inside the hook portion 102.

Even if the bird net 110 is pulled in various directions by external forces such as wind after the bird net fastener 100 is installed, the corner 106 of the V-shaped bent portion 105 of the hook portion 102 will Since the wire rod 111 is pressed against the surface of the portion 101 by the spring force of the spring steel plate, it is possible to prevent the wire rod 111 from coming off from the hook portion 102.

Furthermore, when it becomes necessary to replace the bird-prevention net fastener 100, the bird-prevention net 110 can be pulled toward the distal end of the hook portion 102 while moving the bird-prevention net 110 toward the surface to be attached, such as the wall 120. The wire rod 111 held by the hook portion 102 is guided by the inclined surface of the base end side 105b of the V-shaped bent portion 105 of the hook portion 102, and the wire rod 111 is guided by the inclined surface of the proximal end side 105b of the V-shaped bent portion 105 of the hook portion 102, and the wire rod 111 is guided by the inclined surface of the base end side 105b of the V-shaped bent portion 105 of the hook portion 102, and the wire rod 111 is It can be removed relatively easily because it slips through between the part 106 and the outside.

In addition, when attaching and removing a bird-prevention net using the bird-prevention net fastener 100 of the present invention, the same work was performed using an example of a commercially available bird-prevention net fastener with a different hook shape. We were able to reduce the work time by about half compared to the previous case.

Furthermore, when the wire rod 111 of the bird prevention net fastener 100 is hooked onto and removed from the hook portion 102 of the bird prevention net fastener 100, the wire rod 111 comes into contact with the widthwise corner of the hook portion 102; Since the chamfered portions 107 are formed at the corners, it is possible to prevent the wire 111 from being cut.

100 Fastener for bird prevention net 101 Board part 102 Hook part 103 W-shaped bent part 104 Folded part 105 V-shaped bent part 106 Corner part 107 Chamfered part 108 Fixing hole 109 Corner part 110 Bird prevention net 111 Wire rod 112 End part 120 Wall 121 Ceiling 122 Beam 123 Joist 124 Screw 125 Adhesive

Claims (4)

A fastener formed of a spring steel plate for fixing a bird prevention net,
a board portion that is fixed with its back side in contact with the surface to be mounted;
a hook portion extending in a band shape from a predetermined location on the edge of the substrate portion and bent toward the surface side of the substrate portion;
The hook portion includes a W-shaped bent portion that extends in a band shape from a predetermined location on the edge of the substrate portion and is bent in a W-shape when viewed from the side, and a W-shaped bent portion that extends to the front surface side of the substrate portion through the W-shaped bent portion. It has a folded part that is folded back, and a V-shaped bent part that is bent in a V-shape in a side view from the tip of the folded part, and the corner part of the V-shaped bent part is bent by the spring force of the spring steel plate. It is pressed against the surface of the
A plurality of fixing holes are formed in the substrate part,
A bird prevention net characterized in that a bending angle formed by the tip of the folded portion and the base end of the V-shaped bent portion toward the surface of the substrate portion is in the range of 90 to 150 degrees. Fastener. The inclination angle of the tip side of the V-shaped bent portion of the hook portion with respect to a perpendicular to the surface of the substrate portion and passing through the corner of the V-shaped bent portion is in the range of 20 to 80 degrees, The bird-prevention net fastener according to claim 1, wherein the inclination angle on the base end side is in the range of 20 to 60 degrees. The base plate part and the hook part are integrally formed of a spring steel plate with a thickness of 0.2 to 2 mm, and the width of the hook part in the direction perpendicular to the extending direction is 2 to 25 mm. The fastener for a bird-prevention net according to claim 1 or 2 . The fastener for a bird-prevention net according to claim 1 or 2 , wherein a width direction corner portion of the hook portion facing toward the surface side of the substrate portion has a chamfered shape.

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