JPH01162907U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 to 9 show a specific embodiment of the present invention, with Figure 1 being an exploded perspective view showing the whole, and Figure 2 being an exploded view of the mechanism for holding horizontally polarized waves and vertically polarized waves. A perspective view, Fig. 3 is a longitudinal cross-sectional view of the main part of Fig. 2, Fig. 4 is a longitudinal cross-sectional view of the element mounting plate in a horizontally polarized wave receiving state, and Fig. 5 is a longitudinal cross-sectional view of the element mounting plate in a vertically polarized wave receiving state. 6 is a perspective view of the support pole, FIG. 7 is a vertical cross-sectional view of the support pole, antenna housing, and rotation holding plate showing the main parts of the rotation mechanism of the support pole, and FIG. 8 is a perspective view of the support pole. Fig. 9 is a perspective view of the main parts of the rotary holding plate, Figs. 10 to 14 show a conventional indoor antenna, and Fig. 10 shows its structure. FIG. 11 is a front view of the support pole, FIG. 12 is a front view of the antenna housing, FIG. 13 is a vertical cross-sectional view showing the support pole attached to the antenna housing, and FIG. FIG. 14 is a perspective view of the support pole and the antenna housing. 1...Support pole, 2...Element mounting plate, 10...
... Support pin, 12 ... Rotating support plate, 12a ... Rotating arc surface, 16, 17 ... Notch, 18 ... Protrusion, 19 ... Spring piece, 21 ... Flange, 2
5... Support tube, 28, 28... Arc hole, 29, 2
9... Arc-shaped projecting wall, 30... Center hole, 27, 27
, 27, 27...pressing piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In an indoor antenna in which an element mounting plate is installed at the upper end of a support pole and a support pin is inserted horizontally into the vertical rotating support plate so that the element can be freely rotated on a vertical plane, When the plate is in a horizontal position, a notch is carved in the rotating arc surface of the rotary support plate on the side of the support pin and directly below, and a spring piece with a protrusion is placed at a position where the protrusion fits into the notch. Indoor antenna. (2) The antenna housing is held between the flange at the lower end of the support pole and the rotary holding plate, so that the support pole can be rotated with respect to the antenna housing, and the support tube protruding from the bottom surface of the flange of the support pole is attached to the antenna housing. It was fitted into an arcuate hole drilled on the top surface, and the arcuate projecting wall protruding from the center of the rotation holding plate was fitted into the center hole of the antenna housing, and was cut out in a cantilever shape from the top surface of the antenna housing. An indoor antenna consisting of an elastic pressing piece that contacts the flange of a support pole. (3) An element mounting plate is installed at the upper end of the support pole by inserting a support pin horizontally into the vertical rotation support plate so that it can rotate freely on a vertical plane. A notch is carved on the side and directly below the support pin on the rotating arc surface, a spring piece with a protrusion is placed at a position where the protrusion fits into the notch, and the flange at the lower end of the support pole and the rotation holding plate are connected. The support pole is made rotatable relative to the antenna housing by holding the antenna housing, and the support cylinder protruding from the bottom surface of the flange of the support pole is fitted into the circular arc hole drilled on the top surface of the antenna housing to maintain rotation. An arc-shaped projecting wall protruding from the center of the plate is fitted into the center hole of the antenna housing, and an elastic pressing piece cut and raised in a cantilever shape from the top surface of the antenna housing is brought into contact with the flange of the support pole. Indoor antenna.