Harada Kogyo Kabushiki Kaisha

Heizo Tsuchida

Jiro Harada

A whip antenna made of a material having high tensile strength, such as stainless steel, including a tapered antenna body and a rounded end, both formed as a single integral unit. The antenna is formed by beating a rod having high tensile strength towards its center and pulling the rod in one direction to form the rod into a tapered shape and forming a rounded top section at the tapered end.

Method for manufacturing whip antenna

A whip antenna for vehicles including a feeder terminal directly coupled to the base of the whip antenna element. The coupled portion is inserted into a cylindrical attachment base, and the cylindrical attachment base is filled with an insulating material so that the insulating material envelopes the entire coupled portion with the pointed tip end of the feeder terminal exposed from the insulating material.

Whip antenna for use in vehicles

A screw type coupling device includidng a male screw element formed by installing a coil spring form helical component on the outer surface of a columnar element and a female screw element formed by installing a coil spring form helical component in a tubular element so that the two helical components are screw engaged with each other. With the application of such coupling device to an antenna for vehicles, the antenna having the male screw element at the base is removably attached to a vehicle body by screwing the male screw element of the antenna to the female screw element installed in the vehicle body.

Growing community of inventors

Kanagawa, Japan

Heizo Tsuchida