| 摘要 |
PURPOSE:To offer an ultrasonic delay line which is inexpensive and assembled easily, by covering an ultrasonic delay medium with a cover whose section has roughly a U-shape, and which has formed a projection for pinching the ultrasonic delay medium contained in the inside of two opposed surfaces, and a terminal block which closes the opening surface of its cover, and also to which a lead terminal connected to said ultrasonic delay medium has been installed. CONSTITUTION:A cover 8 is brought to extrusion molding so as to have the same shape in a section parallel to two opening surfaces opposed to each other, and when executing a fitting work to a terminal block 10 to which a lead terminal 9 has been installed, three sides are opened, and the opening part can be opened easily, therefore, the assembling work can be executed easily from both the upper part and the same direction as the extrusion molding. The extrusion- molded product is very inexpensive, and by including a cost of a metallic mold, its effect is further large. |
