JPH0224471Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bird damage prevention device that uses reflected light.

[Conventional technology]

It has long been known that birds such as sparrows are sensitive to reflected light. JP-A-52-21176 was developed as a bird damage prevention device that utilizes this behavior of birds.
The bird expeller described in the publication is known.

By the way, the above-mentioned bird expeller has a reflective mirror surface formed on the outer surface of a polyhedron, and is configured to be installed so that it can be rotated or swung by the wind, etc., so it is expensive and heavy, so it cannot be used as desired. There is a problem in that it is not possible to place a large number of them in one location.

[The problem that the idea attempts to solve]

In other words, bird damage prevention devices that use reflected light can only achieve the desired effect if they are installed in large numbers in large orchards, so they are not practical unless they are manufactured at a low unit cost.

Furthermore, since the device is used by hanging it from the end of a branch of a fruit tree, there is a problem that if it is heavy, the number of branches from which it can be suspended is limited and it cannot be placed at a desired location.

[Means to solve the problem]

The present invention is an attempt to solve the above-mentioned problems of conventional bird damage preventers.
A hanging cord is attached to the mirror plate so as to be slightly offset from the center of the mirror plate in the longitudinal direction so that its attachment position can be adjusted; The device is characterized in that the bird damage preventer is constituted by a string and a strip of paper attached offset in the opposite direction.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. A hanging string 2 is attached with adhesive to a mirror surface side of a mirror plate 1 at a position offset in the longitudinal direction from the center thereof. Note that the hanging cord 2 may be attached using a hole formed in the mirror plate 1, as shown in FIG.

On the other hand, a slightly thicker rectangular piece of paper 3 is attached in a hanging manner on the back surface of the mirror plate 1 at a position offset from the center in the longitudinal direction in the opposite direction to the hanging string 2.

In use, the mirror plate 1 is hung via a hanging string 2 from a branch of a tree in the vicinity where wild birds are not allowed to come (in a plaza, a string is strung on the string). Even if the wind blows naturally, the paper piece 3 sways, so the mirror plate 1 also sways and diffusely reflects the light upward. Wild birds that receive the strong diffusely reflected light will no longer fly near the mirror again.

Also, when attaching the hanging string 2 to the mirror plate 1, the position where the diffusely reflected light reaches will change depending on the inclination of the mirror plate 1, so adjust the attachment position of the hanging string 2 depending on the place of use to adjust the inclination angle of the mirror plate 1. can be modified to suit the location of use. In addition, when using tree branches for hanging, it is important to consider the selection of branches and attach hanging strings to the tips of the branches so as not to obstruct the straight line of light as much as possible.

In the case of the present invention, since it is light in weight, there are fewer restrictions on the branches from which it can be hung. Moreover, because it is lightweight, it can be hung from a thin branch, and in that case, the branch with the mirror plate attached will be in a state similar to the curved tip of a fishing rod, making it easy to move even in the slightest breeze, and the movement will continue, allowing light to be emitted. Diffusely reflected light rays are also emitted, making the effect even greater.

[Effect of idea]

As detailed above, the bird damage prevention device of the present invention provides the following effects and advantages.

(1) Since the production cost is low, it can be used in large quantities in large orchards, and can increase the effect of preventing bird damage.

(2) Because it is light in weight, there are no restrictions on the branches it can be attached to, and it can be attached to any desired location.

(3) Because it is light in weight, it can be swayed even in the slightest breeze to prevent bird damage.

(4) The direction of scattering of reflected light can be adjusted by adjusting the attachment position of the hanging string.

[Brief explanation of drawings]

1 to 3 show a bird damage prevention device as an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a perspective view. 1... Mirror plate, 2... Hanging string, 3... Piece of paper.

Claims (1)

[Scope of utility model registration request] a hanging cord attached to the mirror plate so as to be slightly offset in the longitudinal direction from the center of the mirror plate so as to extend toward the mirror surface side of the mirror plate, and whose attachment position can be adjusted;
A bird damage prevention device comprising a rectangular piece of paper attached on the back surface of the mirror plate in a longitudinal direction offset from the center of the mirror plate in the opposite direction to the hanging string.