Human body detector

FIG. 1 is a front elevational view of human body detector showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a cross sectional view along the line A—A in FIG. 1 with internal mechanisms removed.

The human body detector sought to be patented is a human body detector for use in, for example, an automatic door system to detect access of a human to the automatic door. As shown in FIG. 7 showing a cross-section take along the line A—A, the human body detector includes a body 1 having a microwave transmitting and receiving antenna 2 disposed on a front side thereof. The body has a receptacle 3 defined therein for accommodating electronic component parts forming microwave transmitter and receiver circuits, which receptacle 3 is closed by a cover 4. The receptacle 3 has at least one printed circuit board 5 accommodated therein, and the antenna 2 is fixedly mounted at one end thereof on the printed circuit board 5.