Hitachi Telecom Technologies, Ltd

Yoshitada Yaginuma

Fumiyoshi Oono

Tomonobu Watanabe

A panel unit for a dealing board has a keyboard unit provided with buttons, the keyboard unit has a printed substrate arranged on a display, fixed contacts which form switches provided for the buttons, and electric conductive contact rubber located on the printed substrate and provided with moving contacts opposing the fixed contacts. A panel is positioned on the electric conductive contact rubber and provided with the buttons. The panel has holes, the buttons are fitted into the holes to be vertically moveable so that the fixed contacts of the printed substrate come into contact with the movable contacts of the electric conductive contact rubber. The buttons are provided with an engagement portion for preventing the buttons from coming off the panel and the electric conductive contact rubber and the printed substrate have relief holes in which the buttons are fitted when the engagement portion holds the buttons.

Panel unit of dealing board

A panel unit for a dealing board has a display and a keyboard unit provided with buttons. The display is divided into individual indications which display function names corresponding to the buttons. The keyboard unit has a printed substrate arranged on the display, fixed contacts which form switches provided for the buttons, and electric conductive contact rubber located on the printed substrate and provided with moving contacts opposing the fixed contacts. A panel is positioned on the electric conductive rubber and provided with the buttons. The panel has holes, the buttons are fitted into the holes to be vertically movable so that the fixed contacts of the printed substrate come into contact with the movable contacts of the electric conductive rubber. The buttons are provided with an engagement portion for preventing the buttons from coming off the panel and the electric conductive contact rubber and the printed contact have relief holes in which the buttons are fitted when the engagement portion holds the buttons, as well as belt-like through holes for making the individual indications corresponding to the buttons visible.

Growing community of inventors

Fukushima, Japan

Yoshitada Yaginuma