JP2514469Y2 - Antenna mounting device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna mounting device for mounting a relatively small satellite broadcasting receiving antenna on a balcony of a house or under an eaves.

[0002]

2. Description of the Related Art Conventionally, an antenna mounting device for mounting a satellite broadcast receiving antenna on a veranda of a house or under an eaves is shown in FIG.
As shown in FIG. 3, it is composed of a clamp portion 1 for fixing the antenna to a desired portion and a mast portion 2 for connecting and fixing the antenna to the clamp portion 1. The clamp part 1 includes a first plate 3 and a second plate 4 arranged to face each other.
The hexagonal bolts 6 are inserted into the elongated mounting holes 5 provided at the four corners of each of them, and the nuts 7 are attached to the tips thereof. Then, the plates 3 and 4 are positioned on both sides of the mounting portion and tightened with hexagon bolts 6 and nuts 7 to fix the plates 3 and 4 to the mounting position.
Further, the first plate 3 is provided with four screw holes 8 for fixing the mast portion 2.

On the other hand, the mast portion 2 comprises an antenna mounting mast 11 and a pair of brackets 12 and 13,
The front ends of the brackets 12 and 13 are formed in a semi-circular shape, the lower end of the mast 11 is sandwiched, and the brackets 12 and 13 are fixed by two hexagon bolts 14 and nuts 15. A flange 16 is formed on the bases of the brackets 12 and 13, and a through hole 17 is provided in the flange 16 so as to correspond to the screw hole 8 of the first plate 3. Then, the flange 16 is brought into contact with the first plate 3, the hexagonal sems bolt 18 is screwed into the screw hole 8 through the through hole 17, and the brackets 12 and 13 are fixed to the first plate 3. A satellite broadcast receiving antenna is attached to the mast 11 of the mast portion 2 via a metal fitting.

[0004]

When a satellite broadcast receiving antenna is installed outdoors, such as on a balcony or under the eaves, using the above-mentioned antenna mounting device, the mast 1 is applied to the antenna due to wind pressure.
A force that rotates about 1 acts. In order to cope with the rotational force of the antenna, there is a method of shortening the overhanging length of the antenna to reduce the generated moment, or increasing the mast diameter to increase the resistance force.

The method of shortening the overhanging length of the antenna described above reduces the degree of freedom in attachment such as making the attachment of the mast 11 to the middle portion impossible. For this reason, conventionally, the antenna mounting mast 11 is made thicker, but as a result, there is a problem that the entire mounting bracket becomes large.

Further, in the conventional antenna mounting device, the mounting position of the mast 11 is fixed, and the mounting position cannot be moved. Therefore, when an obstacle is present near the antenna mounting position, it is difficult to mount the antenna while avoiding the obstacle, and the degree of freedom in mounting the antenna is very small.

The present invention has been made to solve the above problems, and provides a small antenna mounting device having a simple structure, a large degree of freedom in mounting an antenna, and an increased resistance to rotation. The purpose is to

[0008]

[Means for Solving the Problems] (First Invention)

An antenna mounting device according to the present invention is formed into a crank shape by a clamp body having a mounting mechanism for a body to be mounted and a polygonal material , and a lower end portion of the clamp body is the above-mentioned clutch.
Mast rotatably connected to the main body of the pump, an antenna mounting portion in which the upper end of the mast is formed in a cylindrical shape, and the outer peripheral surface of which is knurled, and the clamp book.
Under the mast attached to the body and connected to the clamp body
And a fixing member for fixing the end portion at an arbitrary rotation position . (Second device)

The antenna mounting apparatus according to the present invention is formed into a crank shape by a clamp body having a mounting mechanism for a body to be mounted and a polygonal material , and the lower end portion thereof is the above-mentioned clutch.
A mast that is rotatably connected to the pump body, and an antenna formed by press-fitting or heat-pressing a cylindrical elastic body or thermoplastic having an inner diameter slightly smaller than the diagonal dimension at the upper end of the mast. Mounting part and the above clamp
Of the mast attached to the body and connected to the clamp body
And a fixing member for fixing the lower end portion at an arbitrary rotation position . (Third device)

The antenna mounting device according to the present invention is formed into a crank shape by a clamp body having a mounting mechanism for a body to be mounted, and a polygonal material , and the lower end portion thereof is the above-mentioned clutch.
A mast that is rotatably connected to the pump body , and an antenna mounting part that has a pipe with a diameter slightly larger than the diagonal dimension at the upper end of the mast and that is made of a softer material than the mast. , An antenna mounting portion formed by forming a screw groove on the upper end of the mast, mounting and tightening a nut on the screw groove, and pressing and fixing the lower end of the metal pipe to the corner of the bent portion of the mast , The above club
Mass attached to the clamp body and connected to the clamp body.
And a fixing member for fixing the lower end portion of the belt at an arbitrary rotation position .

[0012]

In the antenna mounting device according to the first invention, the mast connected to the clamp body is made of a polygonal material, and the antenna mounting portion of the mast is processed into a cylindrical shape, and then knurled to form the antenna. I try to increase the friction between them.

Therefore, the rotation resistance between the clamp body and the mast and the rotation resistance between the mast and the antenna are increased while reducing the diameter of the mast to reduce the size and weight. Also, since the mast is formed in a crank shape, the position of the antenna mounting part can be moved by rotating the mast, and even if there is an obstacle nearby, avoid the obstacle and mount the antenna. It becomes possible.

Further, in the antenna mounting device according to the second invention, the mast remains polygonal, and a cylindrical elastic body or thermoplastic having an inner diameter slightly smaller than the diagonal dimension thereof is press-fitted into the tip of the mast. Alternatively, since the antenna mounting portion is formed by heating and press-fitting, the antenna mounting portion can be formed in a thick cylindrical shape to increase the rotation resistance against the antenna.

Further, in the antenna mounting device according to the third aspect of the invention, the antenna is mounted by replacing the elastic body with an inner diameter slightly larger than the diagonal dimension of the mast and mounting a pipe made of a softer material than the mast. Part is formed, the nut is attached to the thread groove formed on the upper end of the mast and tightened, and the lower end of the pipe is pressed against the corner of the bent part of the mast to bite it, so that the rotation of the pipe is prevented. , The rotation resistance can be increased.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (First embodiment)

FIG. 1 is a perspective view showing a first embodiment of the present invention. In the figure, 21 is a clamp body, which is composed of a U-shaped metal base 22 and a movable holding body 23. The base 22 has upper and lower end portions protruding sideways to form an upper side portion 24 and a lower side portion 25, and a screw hole 26 is provided in the lower side portion 25. On the other hand, the movable holding body 23 has a threaded portion formed around a rod-shaped member and is screwed into a screw hole 26 provided in the lower side portion 25. Then, the through hole 27 is provided at the lower end of the movable holder 23.
And a lever 28 is inserted into this through hole 27.
Therefore, by rotating the lever 28, the movable holding body 23 moves in the vertical direction. A holding plate 29 is attached to the upper end of the movable holding body 23.
A horizontal portion such as a fence provided on the veranda is sandwiched between the upper portion 9 and the upper side portion 24 of the base 22.
Then, a through hole 31 is formed in the base body 22 so as to penetrate the side wall portion in the vertical direction, and the lower portion of the metal mast 32 is inserted into the through hole 31.

Further, the through hole 3 is formed in the rear surface of the base 22.
A screw hole 33 reaching 1 is formed, and a locking bolt 34 is screwed into the screw hole 33. A knob 35 is attached to the head of the bolt 34, and the knob 35 is rotated to press the tip of the bolt 34 into contact with the flat surface of the mast 32 inserted into the through hole 31. Mast 3
Fix the position of 2.

The mast 32 is made of a polygonal, for example, hexagonal steel material, and is bent into a crank shape. Then, the upper end portion of the mast 32 is processed into a circular shape having a diameter of, for example, about 10 mm for a certain length, and the outer peripheral surface thereof is knurled to form an antenna mounting portion 37.

In the case of using the antenna mounting device having the above-mentioned structure, for example, a horizontal portion such as a fence provided on the balcony is sandwiched between the upper side portion 24 of the clamp body 21 and the holding plate 29 of the movable holding body 23, and the lever is attached. The movable holding body 23 is moved upward by rotating 28 to press the holding plate 29 against the mounting member. Then, the knob 35 is loosened to rotate the mast 32 to a desired position, and then the knob 35 is rotationally operated to press the tip of the bolt 34 against the flat surface portion of the mast 32 to fix the position of the mast 32. In this state, the satellite broadcasting receiving antenna is attached to the antenna mounting portion 37, and the direction of the antenna is adjusted.

Recently, as an antenna for receiving satellite broadcasting,
For example, a small planar antenna having a diameter of 26 cm or 30 cm has been put into practical use. With such a small antenna, the small antenna mounting device shown in the above embodiment can be used to securely mount the antenna.

In this embodiment, since the polygonal material is used as the mast 32 and the flat surface portion is pressed and fixed with the bolt 34, the rotational resistance of the mast 32 against the clamp body 21 is increased. be able to.
Further, since the antenna mounting portion 37 of the mast 32 is knurled to increase the frictional force against the rotational force of the antenna, the rotational resistance with the antenna can be increased. Further, since the mast 32 is formed in a crank shape and can be fixed at an arbitrary rotating position by the bolt 34, the mast 32 can be rotated by rotating the mast 32.
It is possible to adjust the position of the antenna mounting portion 37 formed at the tip of the antenna in a wide range. Second Embodiment FIG. 2 is a perspective view of an antenna mounting device according to a second embodiment of the present invention.

In this second embodiment, the shape of the upper end of the mast 32 is the polygonal material, and the inner diameter of the polygonal material is slightly smaller than the diagonal dimension of the polygonal material. Is press-fitted to form the antenna mounting portion 37a. As the elastic body 41,
For example, hard rubber such as urethane rubber is used.

By press-fitting the elastic body 41 into the upper end portion of the mast 32 in this manner, the corners of the polygonal material are fitted in a state where the elastic body 41 is expanded. Thereby, the elastic body 41
The rotation force against the mast 32 is blocked, and a rotation resistance force is generated. In this case, the thickness of the elastic body 41 is, for example, 5
By providing at least mm, the extreme deformation of the corners is made uniform in the outer peripheral portion, and as a result, large distortion of the circular shape can be eliminated.

In the second embodiment, since the elastic body 41 is press-fitted into the upper end of the mast 32 to form the thick cylindrical antenna mounting portion 37a, the rotation resistance against the antenna can be increased.

In place of the elastic body 41, for example, a thermoplastic such as hard vinyl chloride may be formed into a cylindrical shape and press-fitted into the upper end of the mast 32.
The same effect as when the elastic body 41 is used can be obtained. (Third Embodiment) FIG. 3A is a perspective view of an antenna mounting apparatus according to a third embodiment of the present invention, and FIG. 3B is an enlarged sectional view of a portion A in FIG. is there.

In the third embodiment, a metal pipe 42 is used instead of the elastic body 41 of the second embodiment to construct the antenna mounting portion 37b. The metal pipe 42 has an inner diameter slightly larger than the diagonal dimension of the mast 32 and is made of a material softer than the mast 32, such as aluminum. Also, the metal pipe 42
The length of is from the length of the upper end bent part of the mast 32,
It is set a little shorter. On the other hand, the mast 32 has an upper end processed into a cylindrical shape, and a screw groove is cut on the outer peripheral surface thereof to form a screw portion 43. Then, after the metal pipe 42 is attached to the upper end of the mast 32, a nut 44 is screwed into the threaded portion 43, and the nut 44 is tightened to lower the lower end of the metal pipe 42 as shown in FIG. 3B. The part is pressed against the corner 32a of the bent part of the mast 32, and several corners of the polygon are bited. As a result, the metal pipe 42 is prevented from rotating, and rotation resistance is generated with respect to the mast 32. Also in the third embodiment, the same effect as that of the second embodiment can be obtained.

[0028]

As described above in detail, according to the present invention, the mast connected to the clamp body is made of a polygonal material, and the antenna mounting portion of this mast is processed into a cylindrical shape and then knurled. Since the friction with the antenna is increased, the anti-rotation resistance of the mast with respect to the clamp body and the anti-rotation resistance between the mast and the antenna can be increased while reducing the size and weight. Further, since the mast is formed into a crank shape and is rotatable, the position of the antenna mounting portion can be adjusted in a wide range by the rotation of the mast, and even when there is an obstacle nearby, The antenna can be installed without any trouble.

Further, according to the present invention, the mast remains polygonal, and a cylindrical elastic body or thermoplastic having an inner diameter slightly smaller than its diagonal dimension is press-fitted or heat-pressed to the tip of the mast. Since the antenna mounting portion has a thick cylindrical shape, it is possible to increase the rotation resistance against the antenna.

Further, in the present invention, in place of the elastic body, a metal pipe having an inner diameter slightly larger than the diagonal dimension of the mast and softer than the mast is used, and is formed at the upper end of the mast. Attach the nut to the screw groove and tighten it,
Since the lower end of the metal pipe is pressed against the corner of the bent portion of the mast so as to bite into it, the rotation of the metal pipe can be prevented and the rotation resistance can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing an antenna mounting device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an antenna mounting device according to a second embodiment of the present invention.

FIG. 3A is a perspective view showing an antenna mounting device according to a third embodiment of the present invention, and FIG. 3B is an enlarged sectional view showing a portion A.

FIG. 4 is an exploded perspective view showing a conventional antenna mounting device.

[Explanation of symbols]

21 ... Clamp main body, 22 ... Base body, 23 ... Movable holding body, 24 ... Upper side part, 25 ... Lower side part, 2
6 ... Screw hole, 27 ... Through hole, 28 ... Lever,
29 ... Holding plate, 31 ... Through hole, 32 ... Mast,
33 ... Screw hole, 34 ... Bolt, 35 ... Knob, 36 ... Knurl processing, 37, 37a, 3
7b ... antenna mounting part, 41 ... elastic body, 42
... Metal pipe, 43 ... Screw part, 44 ... Nut.

Claims (3)

(57) [Scope of utility model registration request] 1. A clamp body having a mechanism for attaching to a body to be attached, and a crank-shaped body made of a polygonal material ,
A mast whose lower end is rotatably connected to the clamp body ; an antenna mounting part whose upper end is cylindrically formed and whose outer peripheral surface is knurled ; Attached to the clamp body,
The lower end of the connected mast is fixed with a polygonal arbitrary rotation surface
And a fixing member for fixing the antenna. 2. A clamp body having a mechanism for attaching to a body to be attached, and a polygonal material formed into a crank shape ,
A mast whose lower end is rotatably connected to the clamp body, and a cylindrical elastic body or thermoplastic having an inner diameter slightly smaller than its diagonal dimension is press-fitted into the upper end of the mast. Alternatively, the antenna mounting portion formed by heating and press-fitting and the clamp body mounted on the clamp body,
The lower end of the mast connected to the
An antenna mounting device, comprising: a fixing member for fixing . 3. A clamp body having a mechanism for attaching to a body to be attached, and a crank formed of a polygonal material ,
A mast whose lower end is rotatably connected to the clamp body , and a pipe having an inner diameter slightly larger than the diagonal dimension at the upper end of the mast and made of a softer material than the mast. Attach the antenna mounting section and the upper end of the mast to form a thread groove, and attach a nut to this thread groove to tighten it, and press the lower end of the metal pipe to the corner of the bent section of the mast. Fixed antenna
Attached to the attachment part and the clamp body, the clamp book
The lower end of the mast connected to the body can be rotated by a polygon.
An antenna mounting device comprising a fixing member for fixing .