JPH07297629A - Support arm attachment structure for parabolic antenna device - Google Patents

Abstract

PURPOSE:To easily fix a support arm to its attachment part without holding the support arm by a hand by forming at least one or more pairs of recessing/ projecting matching parts on the attachment surface secured between the support arm and its attachment part. CONSTITUTION:A support arm 2 of a converter 3 has the lock holes 9 and the notes 10 piercing through approximately at the center of each hole 9 which are formed in a single body. The lock pawls 8 are projected in a single body on the bottom surface of a recess part of an attachment part 4 prepared on the rear side of a reflector plate 1, and the screw holes 11 are formed approximately at the center of each pawl 8. An end face 1a of the plate 1 is put on a horizontal stage and each pawl 8 is locked by each hole 9 so that the arm 2 never falls off from the part 4. Then a wall 12 of the recess part of the part 4 is positioned and tentatively fixed so that the hole 10 is coincident with the hole 11. A screw 13 is put into the hole 10 and fastened into the hole 11. Thus the arm 2 is fixed to the part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support arm mounting structure of a parabolic antenna device in which a converter is arranged in front of a parabolic reflector (hereinafter abbreviated as a reflector) by a support arm.

[0002]

2. Description of the Related Art A conventional support arm mounting structure for a parabolic antenna device is, for example, as shown in FIG.
31 is provided, the screw hole 31 is aligned with the insertion hole 30 formed at the base end of the synthetic resin support arm 22 formed in a substantially U shape, and the insertion hole 30 is inserted by the screw 33. Then, the support arm 22 is fastened to the screw hole 31 and the support arm 22 is fixed to the mounting portion 24. A synthetic resin holder A25 formed in a substantially U shape is attached to the attachment portion 24, and a synthetic resin holder B26 formed in a substantially U shape is attached to face the holder A25. The post 34 is clamped by the substantially U-shaped portion formed on the holder A25 and the holder B26, and the screw B27 is provided.
The lead wire 35 is fixed to the support column 34 by means of, and the conducting wire 35 guided from the converter 23 is clamped by the clamper 36 to the support arm 22 and the support column 34. However, when trying to fix the support arm 22 to the mounting portion 24, the support arm 22 falls off due to the mass of the converter 23 or the like attached to the free end of the support arm 22, so that the support arm 22 can be held with one hand. It was necessary to press and temporarily fix, and to fix with the screw 27 with the insertion hole 30 and the screw hole 31 aligned and held. Therefore, the mounting portion 24 and the support arm
There was a problem that workability when fixing the base end of 22 was deteriorated.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a support arm mounting structure for a parabolic antenna device in which a mounting portion and a support arm can be easily fixed to each other.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is based on a reflector, a synthetic resin mounting portion mounted on the rear surface of the reflecting plate, and a mounting portion based on the mounting portion. In a parabolic antenna device having a support arm made of synthetic resin having an end attached to a free end and a converter fixed to the parabolic antenna device, a fitting portion having at least a pair of concaves and convexes on an attachment surface between the attachment portion and the support arm base end portion. Is formed, and the fitting portion is fixed with a screw. Further, the mounting surface of the mounting portion is formed in a concave shape, the support arm base end portion is fitted into the recess portion without a gap, and the depth of the recess portion and the thickness of the base end portion are formed to be substantially the same. Characterize. Further, at least one or more engaging claws are integrally provided on the bottom surface of the concave portion of the mounting portion so as to integrally project. Further, the present invention is characterized in that a screw hole made of metal is inserted into substantially the center of the engaging pawl provided in a convex shape. Further, a locking hole is formed at the base end portion of the support arm so as to face the one or more locking claws and fit without a gap, and an insertion hole is formed substantially at the center of the locking hole. And In addition, at least one or more engaging holes are integrally provided on the bottom surface of the recess of the mounting portion. In addition, a metal screw hole is inserted into substantially the center of the recessed engaging hole. Further, a locking claw is formed at the base end portion of the support arm so as to face the one or more locking holes and fit without a gap, and an insertion hole is formed substantially in the center of the locking claw. And

[0005]

With the above structure, when the base end portion of the support arm is attached to the mounting portion, it is temporarily fixed by the fitting portion having at least one pair of concave and convex portions, and the support arm is provided with the concave portion formed on the mounting surface of the mounting portion. The base end is positioned, and the support arm can be easily fixed with screws without holding it by hand.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 3, 1 is a reflector,
1a is an end face of the reflector 1 and 2 is fixed to a mounting portion, which will be described later, provided on the rear face of the reflector 1. The reflector 1 is formed of synthetic resin in a substantially U-shape so as to extend to the front of the reflector 1. Is a support arm having a substantially rectangular cross section. Reference numeral 3 denotes a converter, which is attached to the free end of the support arm 2 and is opposed to and fixed to the reflection plate 1. Reference numeral 4 denotes a synthetic resin mounting portion provided on the back surface of the reflection plate 1, and 5 denotes a synthetic resin holder A, 6 mounted on the mounting portion 4.
Is a holder B made of synthetic resin, and 7 is a screw B. The support arm 2 is integrally formed with a cylindrical or square-shaped locking hole 9 at the base end and an insertion hole 10 that is inserted through substantially the center of the locking hole 9. In order to mount the support arm 2, the mounting portion 4 is formed in a concave shape that forms a side surface on three sides, and a cylindrical shape or a prismatic shape for locking the locking hole 9 on the bottom surface of the concave portion. A protruding locking claw 8 is integrally formed, and a metal screw hole is formed in the substantial center of the locking claw 8.
11 is inserted. The locking claw 8 and the locking hole 9 are formed as at least one pair. Also,
As shown in FIG. 2, the recess formed in the mounting portion 4 is configured to be positioned by the wall 12 so that the support arm 2 is not displaced laterally. The height dimension of the wall 12 and the thickness dimension of the base end portion of the support arm 2 are formed to be substantially the same, and the outer surface of the wall 12 and the outer surface of the base end portion are flush with each other. It is fixed in the state of. 13 is a screw A, the insertion hole
10 is inserted and fastened to the screw hole 11, and the support arm 2
Is fixed to the mounting portion 4. 14 is a column, which is the mounting portion 4
Is attached to the column 14 by the holder A5 and the holder B6 and fixed by the screw B7. Reference numeral 15 is a conducting wire led from the converter 3, which is clamped by the clamper 16 to the support arm 2 and the column 14. With the above configuration,
For example, as shown in FIG. 3, by mounting the end surface 1a on a horizontal table and locking the locking claw 8 with the locking hole 9, the support arm 2 is removed from the mounting portion 4. In addition, the wall 12 is positioned and temporarily fixed so that the insertion hole 10 and the screw hole 11 are aligned with each other, and the support arm 2 is not held by the screw A13.
Is fixed to the mounting portion 4.

Next, another embodiment will be described with reference to FIG. In the above configuration, the cylindrical or prismatic locking claw 8 is integrally provided at the base end portion of the support arm 2 so as to be substantially perpendicular to the end surface 1a. The insertion hole 10 is integrally formed in the center, and the cylindrical or square tubular locking hole 9 is integrally formed on the bottom surface of the recess formed in the mounting portion 4. The screw hole 11 is inserted approximately in the center, and the locking claw 8 is locked in the locking hole 9 so that the support arm 2 is temporarily fixed so as not to drop from the mounting portion 4. By positioning so that the insertion hole 10 and the screw hole 11 are aligned with each other.
The support arm 2 is fixed to the mounting portion 4 without holding it by hand.

[0008]

As described above, according to the present invention, the base end portion of the support arm is temporarily fixed to the mounting portion provided on the rear surface of the reflector, and the insertion hole and the screw hole are positioned so that they are aligned with each other. Thereby, the workability of fixing the base end portion to the mounting portion is improved.

[Brief description of drawings]

FIG. 1 is a side view of a support arm mounting structure of a parabolic antenna device according to the present invention.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1 showing a support arm mounting structure according to the present invention.

FIG. 3 is an exploded side view of essential parts showing a support arm mounting structure according to the present invention.

FIG. 4 is an exploded side view of essential parts showing another embodiment of the support arm mounting structure according to the present invention.

FIG. 5 is a side view of a support arm mounting structure of a parabolic antenna device according to a conventional example.

[Explanation of symbols]

 1 Parabolic reflector (reflector) 1a End face 2 Support arm 3 Converter 4 Mounting part 5 Holder A 6 Holder B 7 Screw B 8 Locking claw 9 Locking hole 10 Insertion hole 11 Screw hole 12 Wall 13 Screw A 14 Strut 15 Conductor wire 16 clamper

Claims (8)

[Claims] 1. A reflector, a mounting part made of synthetic resin mounted on the back surface of the reflecting plate, and a supporting arm made of synthetic resin having a base end attached to the mounting part and a converter fixed to a free end. In the parabolic antenna device, at least a pair of concave and convex fitting portions are formed on the mounting surfaces of the mounting portion and the support arm base end portion, and the fitting portions are fixed by screws. Parabolic antenna device support arm mounting structure. 2. The mounting surface of the mounting portion is formed in a concave shape, the base end of the support arm fits in the recess without any gap, and the depth of the recess and the thickness of the base end are formed to be substantially the same. The support arm mounting structure for the parabolic antenna device according to claim 1, wherein 3. The support arm mounting structure for a parabolic antenna device according to claim 1, wherein at least one locking claw is integrally provided on the bottom surface of the recess of the mounting portion so as to integrally project. 4. A screw hole made of metal is inserted substantially in the center of the projecting locking claw.
The support arm mounting structure of the parabolic antenna device according to the above 2 or 3. 5. A locking hole is formed at the base end of the support arm so as to face the one or more locking claws and fit without a gap, and an insertion hole is formed substantially at the center of the locking hole. 4. A support arm mounting structure for a parabolic antenna device according to claim 1, 2, or 3. 6. The support arm mounting structure for a parabolic antenna device according to claim 1, wherein at least one locking hole is integrally recessed in the bottom surface of the recess of the mounting portion. 7. A screw hole made of metal is inserted substantially in the center of the recessed locking hole.
2. A support arm mounting structure for the parabolic antenna device according to 2,6. 8. A locking claw is formed at the base end of the support arm so as to face the one or more locking holes and fit without a gap, and an insertion hole is formed substantially in the center of the locking claw. The support arm mounting structure for a parabolic antenna device according to claim 1, 2, or 6.