JPH0716406U - Antenna auxiliary arm mounting bracket - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention improves the workability of assembling in the mounting bracket of the antenna auxiliary arm used when the outdoor installation antenna for TV reception or the like is installed on the column, and further, the antenna arm The purpose is to reliably prevent the rotation deviation of the. [Configuration] Antenna arm 13 that serves as the main axis of the antenna body
Antenna arm insertion portion 32a for holding the arm in a striped manner
And an auxiliary arm holding portion 33a for holding and fixing the tip end portion of the antenna auxiliary arm vertically arranged with respect to the antenna arm 13, are integrated, and a V-shape is formed on the inner surface of the antenna arm insertion portion 32a. Of the antenna arm 13 is formed by the antenna arm insertion portion 32a while forming the protrusion 40 in the shape of a ring and the protrusion fitting hole 41 into which the V-shaped protrusion 40 is fitted.
The V-shaped protrusion 40 is formed to correspond to the holding position on the surface, and the V-shaped protrusion 40 is firmly fitted into the protrusion fitting hole 41 when the tip of the antenna auxiliary arm 19 is held and fixed by the auxiliary arm holding portion 33a. It will be configured.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting bracket for an antenna auxiliary arm used when an outdoor antenna, such as a television receiver, is installed on a column (mast).

[0002]

[Prior art]

 FIG. 3 is an external view showing a UHF television receiving antenna installed on a vertical mast via an antenna auxiliary arm. In FIG. 3, 11 is a mast that serves as a pillar, 12 is a UHF television receiving antenna, 13 is an antenna arm that is the main axis of the antenna 12, 14 is a waveguide element arranged with respect to the antenna arm 13, and 15 is a waveguide element 14 The radiating element that converges the UHF wave guided by the, 16 is a reflector that converges the UHF wave on the radiating element 15, 17 is a power feeding unit that derives the UHF wave signal that is converged on the radiating element 15, and 18 is a mast. Reference numeral 11 denotes a mast mounting bracket for mounting and fixing the antenna 12 to 11, and 19 denotes an antenna auxiliary arm mounted to the mast 11 via the mast mounting bracket 18 and supporting the antenna arm 13 of the antenna 12.

The antenna auxiliary arm 19 is formed in a wide U shape, and both ends of the U shape are attached to the antenna arm 13 via the auxiliary arm attachment fittings 20a and 20b, respectively. The arm fittings 20a, 20b are fastened and fixed to the U-shaped tip ends of the antenna auxiliary arm 19 by the butterfly screws 21a, 21b while straddling the antenna arm 13 from above.

FIG. 4 is a three-sided view showing a configuration of a conventional antenna auxiliary arm mounting bracket 20a. FIG. 4A is a right side view, FIG. 4B is a front view, and FIG. Is. That is, the antenna auxiliary arm mounting bracket 20a includes an antenna arm insertion portion 22a that extends across the antenna arm 13 and a tip portion of the antenna auxiliary arm 19 that is arranged in a direction perpendicular to the antenna arm insertion portion 22a. The left and right sides of the antenna arm insertion portion 22a are formed by dividing the left and right auxiliary arm holding portions 23a into two parts, which are integrated by a T-shaped lock piece 26a through a lock groove 25a at the top thereof. The inner surface is provided with annular protrusions 24L and 24R formed by punching from the outer side to the inner side, and screw holes are formed on the left and right side surfaces of the auxiliary arm holding portion 23a. 27L and 27R are provided, and the through tightening is performed by the butterfly screw 21a.

That is, the antenna auxiliary arm mounting bracket 20a is locked and integrated by the T-shaped lock piece 26a so as to straddle the antenna arm 13, and the antenna arm insertion portion 22a sandwiches the antenna arm 13 and assists the auxiliary arm. The antenna holding arm 23 supports the antenna arm 13 by holding the tip of the antenna auxiliary arm 19 in the arm holding portion 23a, penetrating the screw holes 27L, 27R and the auxiliary arm 19 and tightening the butterfly screw 21a. To be done.

In this case, the annular protrusions 24L and 24R provided on the left and right inner side surfaces of the antenna arm insertion portion 22a are bitten by the outer peripheral surface of the antenna arm 13 as the butterfly screw 21a is tightened. The rotation deviation of the antenna arm 13 is prevented.

[0007]

[Problems to be solved by the device]

 However, in the above-described conventional antenna auxiliary arm mounting bracket 20a, the antenna arm insertion portion 22a and the auxiliary arm holding portion 23a are divided into two parts on the left and right, and the antenna arm 13 and the antenna auxiliary arm 1 are integrated by the lock piece 26a. Since it is attached to 9, the workability of assembling it is very poor.

Further, the conventional antenna auxiliary arm mounting member 20a is attached to the auxiliary arm mounting member 20a only by causing the annular protrusions 24L and 24R of the antenna arm insertion portion 22a to bite on the surface of the antenna arm 13. Since rotation deviation of the antenna arm 13 is prevented, when pressure in the rotational direction is repeatedly applied to the antenna arm 13 due to wind pressure or snow on the antenna, the antenna arm 13 corresponds to the annular protrusions 24L and 24R on the surface of the antenna arm 13. There is a problem that the bite portion is gradually scraped off, and eventually the antenna arm 13 is misaligned.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a mounting bracket for an antenna auxiliary arm that can improve the workability of assembling and can reliably prevent the rotation displacement of the antenna arm. To aim.

[0010]

[Means for Solving the Problems]

 That is, the mounting bracket for the antenna auxiliary arm according to the present invention includes an antenna arm that is the main axis of the antenna body, an antenna auxiliary arm whose front end is arranged vertically adjacent to the antenna arm, and the above antenna. An antenna arm insertion part that holds the arm while straddling it in a strip shape, and an auxiliary arm holding part that holds the tip end part of the antenna auxiliary arm by being integrally integrated with both end portions of the antenna arm insertion part And a V-shaped projection formed on the inner side surface of the antenna arm insertion portion, and an auxiliary arm arm formed by the auxiliary arm holding portion formed corresponding to the holding position of the antenna arm surface by the antenna arm insertion portion. It is provided with a projection fitting hole into which the V-shaped projection is fitted when the tip portion is held and fixed.

[0011]

[Action]

 In other words, by simply straddling the antenna arm insertion part over the antenna arm and holding and holding the tip of the antenna auxiliary arm by the auxiliary arm holding part, it is possible to install and install the antenna arm and the antenna auxiliary arm very easily. However, since the V-shaped protrusion is fitted in the protrusion fitting hole, the rotational displacement of the antenna arm with respect to the antenna arm insertion portion can be reliably prevented.

[0012]

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a state in which an antenna arm 13 is supported and fixed to an antenna auxiliary arm 19 by an antenna auxiliary arm attachment fitting 30a according to an embodiment of the present invention.

FIG. 2 is a three-sided view showing the configuration of the antenna auxiliary arm mounting bracket 30a. FIG. 2A is a right side view, FIG. 2B is a front view, and FIG. is there. The antenna auxiliary arm mounting bracket 30a includes an antenna arm insertion portion 32a that extends in a striped manner over the antenna arm 13 and a tip of the antenna auxiliary arm 19 that is arranged in a direction perpendicular to the antenna arm insertion portion 32a. The auxiliary arm holding portion 33a for holding the portion is integrally formed, and the antenna arm insertion portion 32a is provided with a protrusion 40 having a V-shaped horizontal cross section, for example, on the right inner surface in the drawing. Screw holes 27L and 27R are provided on the left and right side surfaces of the auxiliary arm holding portion 43a, and the through tightening is performed by the butterfly screw 21a.

The V-shaped protrusion 40 of the antenna arm insertion portion 32a is fitted on the surface of the antenna arm 13 at a position where the antenna auxiliary insertion portion 32a holds the antenna auxiliary arm attachment fitting 30a. A protrusion fitting hole 41 to be fitted is formed.

That is, the antenna auxiliary arm mounting bracket 30a is straddled over the antenna arm 13, and the antenna arm 13 is sandwiched by the antenna arm insertion portion 32a, and is formed on the inner surface of the antenna arm insertion portion 32a. The formed V-shaped protrusion 40 is fitted into the protrusion fitting hole 41 formed on the surface of the antenna arm 13.

Then, the tip end portion of the antenna auxiliary arm 19 is held by the auxiliary arm holding portion 33a of the antenna auxiliary arm mounting member 30a, and the screw holes 27L, 27R and the auxiliary arm 19 are penetrated to fix the butterfly screw 21a. By tightening, the antenna arm 13 is supported by the antenna auxiliary arm 19.

In this case, the V-shaped protrusion 40 formed on the inner surface of the antenna arm insertion portion 32a is tightened with the butterfly screw 21a, and the protrusion fitting hole 41 formed on the surface of the antenna arm 13 is formed. On the other hand, since the V-shaped surface is firmly fitted in correspondence with the rotation direction of the antenna arm 13, it is surely prevented that the antenna arm 13 is inscribed in the antenna arm insertion portion 32a to cause the rotation deviation. Will be done.

Therefore, the antenna main body having the antenna arm 13 as the main axis does not cause rotational deviation with respect to the antenna auxiliary arm 19 attached to the mast 11. Further, in the antenna auxiliary arm mounting member 30a, since the antenna arm insertion portion 32a and the auxiliary arm holding portion 33a are integrally formed as one component, the antenna auxiliary arm mounting member 30a is attached to the antenna arm 13. After straddling, it is only necessary to tighten the penetration of the tip end of the antenna auxiliary arm 19 with the butterfly screw 21a, so that the antenna arm 13 and the antenna auxiliary arm 19 can be mounted and assembled very easily. become.

Therefore, according to the antenna auxiliary arm mounting bracket 30a having the above-described configuration, the antenna arm insertion portion 32a that holds the antenna arm 13 that is the main axis of the antenna main body in a striped state and the antenna arm insertion portion 32a that is perpendicular to the antenna arm 13 is provided. The antenna is arranged integrally with an auxiliary arm holding part 33a for holding and fixing the tip part of the auxiliary arm, and a V-shaped protrusion 40 is formed on the inner surface of the antenna arm insertion part 32a. A projection fitting hole 41 into which the V-shaped projection 40 is fitted is formed in correspondence with the holding position of the surface of the antenna arm 13 by the antenna arm insertion portion 32a, and the auxiliary arm holding portion 33a is formed. The V-shaped protrusion 40 of the antenna arm insertion portion 32a is attached to the antenna arm when the tip of the antenna auxiliary arm 19 is held and fixed. Since it is firmly fitted in the projection fitting hole 41 on the surface of the arm 13, the antenna arm insertion part 32a is straddled over the antenna arm 13 and the tip part of the antenna auxiliary arm 19 is held by the auxiliary arm holding part 33a. The antenna arm 13 and the antenna auxiliary arm 19 can be installed and assembled very simply by only fixing them, and it is possible to reliably prevent the rotational displacement of the antenna arm 13 with respect to the antenna arm insertion portion 32a. become able to.

[0020]

[Effect of device]

 As described above, according to the present invention, the antenna arm that serves as the main axis of the antenna main body, the antenna auxiliary arm whose tip end portion is arranged in the direction perpendicular to the antenna arm, and the antenna arm are straddled in a strip shape. The antenna arm insertion part that holds the antenna arm insertion part, the auxiliary arm holding part that holds the tip end part of the antenna auxiliary arm and is fixed to the both ends of the antenna arm insertion part that is continuously integrated, and the antenna arm insertion part. The V-shaped protrusion formed on the inner side surface of the antenna part and the holding position of the tip end part of the antenna auxiliary arm formed by the auxiliary arm holding part formed corresponding to the holding position of the antenna arm surface by the antenna arm insertion part. Therefore, the V-shaped projection is fitted with a projection fitting hole, so that the antenna auxiliary antenna according to the conventional two-divided configuration is used. It is possible to improve the workability of assembling the antenna arm and the antenna auxiliary arm compared to the mounting bracket of the arm, and it is possible to reliably prevent the rotation displacement of the antenna arm with respect to the antenna arm insertion part. become.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which an antenna arm is supported and fixed to the antenna auxiliary arm by an antenna auxiliary arm mounting bracket according to an embodiment of the present invention.

FIG. 2 is a three-sided view showing a configuration of the antenna auxiliary arm mounting bracket.

FIG. 3 is an external view showing a UHF television receiving antenna installed on a vertical mast via an antenna auxiliary arm.

FIG. 4 is a trihedral view showing a configuration of a conventional antenna auxiliary arm mounting bracket.

[Explanation of symbols]

11 ... Mast, 12 ... UHF TV receiving antenna, 1
3 ... Antenna arm, 14 ... Waveguide element, 15 ... Radiating element, 16 ... Reflector, 17 ... Feed part, 18 ... Mast mounting metal fitting, 19 ... Antenna auxiliary arm, 21a, 21b ... Butterfly screw, 27L, 27R ... Butterfly screw hole, 30a ... Antenna auxiliary arm mounting bracket, 32a ... Antenna arm insertion part,
33a ... Auxiliary arm holding part, 40 ... V-shaped projection part, 41
… Protrusion fitting hole.

Claims (1)

[Scope of utility model registration request] 1. An antenna arm serving as a main axis of an antenna main body, an antenna auxiliary arm whose front end portion is arranged in a direction perpendicular to the antenna arm, and an antenna which holds the antenna arm in a striped manner. Formed on the inner side surface of the antenna arm insertion portion, an auxiliary arm holding portion which is integrally provided at both end portions of the antenna arm insertion portion, and which holds and fixes the tip end portion of the antenna auxiliary arm. And a V-shaped projection formed by the above-mentioned antenna arm insertion portion, and the V-shaped projection is formed in correspondence with the holding position of the antenna arm surface by the above-mentioned antenna arm insertion portion. A fitting fitting for an antenna auxiliary arm, comprising: a projection fitting hole into which the projection is fitted.