US Patent 7233292 Antenna device having rotatable structure

An antenna device includes a coupler rotatably attaching to a support device, a connector rotatably attached to the coupler with a pivot axle and having an extension, and having a stop. An antenna member includes a bore formed in one end for rotatably receiving the extension of the connector. The antenna member includes a stop for engaging with the stop of the connector, and for limiting the antenna member to rotate relative to the connector. The connector includes one or more projections extended into a peripheral groove, and the antenna member includes one or more anchoring members for engaging with the projection of the connector, to position the antenna member to the connector at selected angular position.