JPH079445Y2 - Polarization angle adjustment mechanism for communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a communication device, and more particularly to a polarization angle adjusting mechanism.

[Conventional technology]

Conventionally, as shown in FIG. 3, a polarization angle adjusting mechanism of this type is provided with a rotary shaft portion 3 integrally on the front and rear sides on the axis of a primary radiator 2 attached to a communication device 1. 3 support 4
It is supposed to be supported by. Then, when adjusting the polarization angle, the rotating shaft portion 3 is rotated around the axis with respect to the support base 4 so that the primary radiator 2 is directed in a desired direction.

[Problems to be solved by the invention]

In the above-described conventional polarization angle adjusting mechanism, since the rotating shaft portion 3 and the support base 4 of the communication device 1 are both made of metal, when the communication device 1 is rotated when adjusting the polarization angle, the rotating shaft portion 3 And the bearing portion of the support base 4 slide against each other, and when the metal material is soft, wear causes scratches on the sliding surface, making it difficult to rotate smoothly. Rotation is impossible because of sticking.

Further, since the contact surface between the rotary shaft portion 3 and the support base 4 is not painted, corrosion occurs when the communication device 1 is installed outdoors. This corrosion can be solved by painting, but if the communication device 1 is left unrotated for a long time, the paints will be fused to each other and the communication device 1 cannot be rotated.

An object of the present invention is to provide a polarization angle adjusting mechanism of a communication device that enables smooth rotation and can prevent corrosion in a rotating portion.

[Means for solving problems]

The polarization angle adjusting mechanism of the communication device according to the present invention is provided with a rotating shaft part in a communication device integrally having a primary radiator, and the rotating shaft part is rotated on a bearing surface provided on a support stand for fixing the communication device. It is applied to a polarization angle adjusting mechanism of a communication device that axially supports as much as possible, and rotates the communication device around a rotating shaft portion to adjust the polarization angle of the communication device. The shaft surface of the rotating shaft portion of the communication device to be supported and the bearing surface provided on the support base are coated, and a sliding ring made of a non-metallic material is provided between the rotating shaft portion and the bearing surface. This sliding ring has a protrusion extending in the radial direction on a part of its circumference, and is fitted in a radial notch formed on a part of the circumference of the bearing surface to prevent itself from rotating. Is configured.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a side view of the same. In the figure, a communication device 1 has a primary radiator 2, and rotary shaft portions 3 are integrally provided on the front and rear sides of the primary radiator 2 on the axis. The communication device 1 is rotatably supported by the support base 4 at the rotary shaft portion 3, and a sliding ring 5 is interposed between the rotary shaft portion 3 and the bearing surface 4a of the support base 4. I am inserting it.

The sliding ring 5 is made of a resin material such as plastic,
A protrusion 5a protruding in the radial direction is provided on a part of the circumference. The protrusion 5a fits into a notch 4b formed in a part of the circumference of the bearing surface 4a to prevent the sliding ring 5 from rotating itself.

Therefore, according to this configuration, the sliding ring 5 is inserted between the rotary shaft portion 3 and the bearing surface 4a, so that the frictional resistance between the rotary shaft portion 3 and the bearing surface 4a is reduced, and the both are reduced. It is possible to prevent the occurrence of scratches and burning due to the direct contact of the communication device 1, and facilitate the rotation of the communication device 1 to facilitate the adjustment of the polarization angle of the communication device. Further, even if the rotary shaft portion 3 and the bearing surface 4a are coated, the coating materials do not fuse with each other, and corrosion can be prevented while ensuring rotation of the communication device.

Needless to say, a material other than resin can be used for the sliding plate ring as long as the material is other than metal.

[Effect of device]

As described above, according to the present invention, since the rotating shaft portion provided in the communication device and the bearing surface of the support base are coated, it is possible to effectively prevent the corrosion and improve the corrosion resistance. . Also, since a sliding ring made of a non-metallic material is inserted between the rotating shaft part and the bearing surface, the rotating shaft part and the bearing surface are not brought into direct contact with each other, and wear and seizure between them are prevented. The rotation can be performed smoothly, the delicate angle adjustment can be easily performed, and the coatings of the rotating shaft and the bearing surface are not fused to each other, and the above corrosion prevention effect can be maintained for a long time. it can.

Further, since the protrusion provided on a part of the circumference of the sliding ring is fitted into the notch provided on the circumference of the bearing surface to prevent the sliding ring itself from rotating, the outer peripheral portion of the sliding ring is prevented. Does not wear between the bearing surface and the bearing surface, prevents the backlash from being attached to the support base, keeps the shaft center constant, and supports the rotating shaft part stably and with high reliability. It will be possible.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a polarization angle adjusting mechanism of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a sectional view of a conventional polarization angle adjusting mechanism. DESCRIPTION OF SYMBOLS 1 ... Communication device, 2 ... Primary radiator, 3 ... Rotating shaft part, 4 ... Support stand, 4a ... Bearing surface, 4b ... Notch part, 5 ... Sliding ring, 5a ...
Protrusion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 62-194706 (JP, A) Actual development 54-22643 (JP, U) Actual public 27-8003 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A communication device integrally provided with a primary radiator is provided with a rotary shaft portion, and the rotary shaft portion is rotatably axially supported on a bearing surface provided on a support table on which the communication device is fixedly installed, and the communication is performed. In a polarization angle adjusting mechanism for a communication device, wherein the rotation angle of the communication device is adjusted by rotating the rotation device around the rotation shaft part, the rotation shaft part of the communication device is supported by a bearing surface provided on the support base. The shaft surface and the bearing surface provided on the support base are coated, and a sliding ring made of a non-metallic material is inserted between the rotating shaft portion and the bearing surface. A communication device, characterized in that it has a protrusion extending in a radial direction in a part of its circumference and is fitted into a radial notch provided in a part of the circumference of the bearing surface to prevent itself from rotating. Polarization angle adjustment mechanism.