JPH018139Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application and conventional problems) The present invention relates to a nesting prevention device that prevents birds from building nests on steel towers, utility poles, street lights, etc.

There are various types of conventional preventive devices, but all of them have the problem of being difficult to handle and detracting from the appearance.

(Purpose of the invention) Therefore, the object of the present invention is to provide a nest prevention device that is easy to install without damaging the appearance.

(Example) Hereinafter, details of the present invention will be explained with reference to illustrated embodiments.

The present preventive device S shown in FIG. 1 is attached to an L-shaped angle K of a steel tower, and includes an inner cylinder 1 made of corrosion-resistant and insulating Bakelite that is attached to the angle K, and an outer cylinder 2 made of Bakelite that covers them. Consists of. As shown in FIG. 2, the inner cylinder 1 consists of a pair of semi-cylindrical split bodies 1a and 1b, each of which has a groove 1c around its outer periphery, and a pin 1d in which the roller R can be rotated.
It is pivoted and accommodated, with half its width protruding.

Furthermore, lock cylinders 1e and 1n having a length half the width of the split bodies 1a and 1b are integrally molded on different sides of the bodies 1a and 1b so as to protrude by half. Therefore, if one split body is reversed, it becomes the other split body, so it is only necessary to form one split body. As shown in Fig. 3, the outer cylinder 2 is a pair of semi-cylindrical split bodies 2a, 2b that are integrally connected in parallel, and the continuous part 2n is made thin so that it can be opened and closed. Groove rails 2c that come into contact with the rollers R are provided around the inner periphery of both sides. Further, locks 2d protruding by half are provided on both ends of the open side of one split body 2a, and the other half of the split body 2a is provided with locks 2d.
The lock cylinder 2d is attached to both ends of the open side of b from the end face.
The lock cylinder 2e is made to protrude by half with the length of the lock cylinder 2e
is protruding.

Next, the operation of this example will be explained. First, split-shaped bodies 1a and 1b are placed at angle K of the part of the steel tower where it is easy to nest.
A split pin 3 as shown in FIG. 2 is inserted into the adjacent series of lock cylinders 1e and 1n, and the protruding tips of the pins are bent to fix the split bodies 1a and 1b. Then, install the inner cylinder 1. Two inner cylinders 1 are provided on both sides as shown in FIG. Then, the split bodies 2a and 2b are bent at the continuous portion 2n, and the split pin 4 is inserted into the lock cylinders 2d and 2e, which are connected in series, with the roller R accommodated in the groove rail 2c. Bend the protruding tip and attach the outer cylinder 2.
(See Figures 1 and 4).

According to this example, since the outer cylinder 2 is in contact with the inner cylinder 1 via the roller R, when a bird places its foot on the outer cylinder 2 to perch, the outer cylinder 2 immediately rotates. The birds will not be able to stop. On this occasion,
There is no problem if inner cylinder 1 also rotates at the same time, but inner cylinder 1
In order to keep it in a fixed state, set the angle K as shown in Figure 5.
If a protrusion of 1 m is provided on the inner circumference, the preventer S
It is also possible to prevent the sliding movement of the In addition,
Since the roller R is accommodated in the groove rail 2c, the outer cylinder 2 does not come off from the inner cylinder 1.

(Structure of the invention) Although this example is structured as described above, the invention is not limited to this. For example, the structure of the inner cylinder does not matter, and it may be a split-shaped body arranged in parallel so that it can be opened and closed like the case of this exceptional case, or it may have the same length as the outer cylinder as shown in FIG. Furthermore, the configuration of the outer cylinder is not limited, and may be a separate split-shaped body like the inner cylinder of this example.
The external shape may be as shown in the figure. Furthermore, the configuration and installation of the rolling elements are appropriate, and as shown in FIG.
The groove rail 6a provided on the outer periphery of the inner cylinder 6 may be disposed in contact with the groove rail 6a provided on the outer periphery of the inner cylinder 6. Alternatively, as shown in FIG. 7, the side pieces 7a of the outer cylinder 7 to which the rolling elements are attached may be lengthened to prevent the inner cylinder 8 from sliding out. In this case, the rolling elements are attached to the outer periphery of the inner cylinder 8. The inner cylinder is stable even without the groove rail, resulting in a simple configuration.

Note that the configuration of the lock portions provided on the split bodies of the inner cylinder and the outer cylinder is also arbitrary, as long as they can be locked to each other to form the inner cylinder and the outer cylinder. In addition to the angles of steel towers, the material to which they are attached can be widely used for nesting places such as streetlights and utility poles.

In short, the present invention includes an inner cylinder that is attached to a material to be attached,
an outer cylinder that covers a part of the material to which the inner cylinder is attached; A lock part is provided for fixing the split-shaped body to the cylinder, and a rolling element interposed between the inner cylinder and the outer cylinder is rotatably provided on the outer periphery of the inner cylinder or the inside of the outer cylinder. It is a device to prevent birds from nesting.

(Effect of the invention) Therefore, according to the present invention, the material to be attached in areas where nesting is likely to occur is covered with the outer cylinder, and when a bird lands on the outer cylinder, it rotates, so that it is effective in keeping birds away and preventing nesting. is large.

[Brief explanation of the drawing]

Figure 1 is a perspective view using an example of the present invention, Figure 2 is a perspective view using an example of the present invention;
The figure is an exploded perspective view of the inner cylinder, Figure 3 is an exploded perspective view of the outer cylinder, Figure 4 is a longitudinal sectional front view of the main part, and Figure 5 is an exploded perspective view of the inner cylinder.
The figure is a longitudinal sectional side view showing another example of the inner cylinder, FIG. 6 is a vertical sectional front view of another example, and FIG. 7 is a partially cut away longitudinal sectional front view of still another example. 1, 6, 8: Inner cylinder, 1a, 1b: Split body of the inner cylinder, 2, 5, 7: Outer cylinder, 2d, 2e: Lock portion of the outer cylinder, 2a, 2b: Split body of the outer cylinder, 3, 4: split pin, R: roller, K: angle.

Claims (1)

[Scope of utility model registration request] It has an inner cylinder that adheres to the material to be attached, and an outer cylinder that covers a part of the material to which the inner tube is attached, and the inner tube and the outer tube each have a cylindrical body that extends in the direction of the material to be attached. Consisting of a plurality of divided split bodies, each split body is provided with a lock part for fixing it to the cylinder, and the rolling elements interposed between the inner cylinder and the outer cylinder are mounted on the outer periphery of the inner cylinder or on the inside of the outer cylinder. A device for preventing bird nesting, characterized in that it is rotatably provided in the device.