Patent ID: 6851181

Claim:
A two-story apparatus for manufacturing a non-resonance knock sensor having a cylindrical base, a lower insulator, a lower terminal plate, a piezoelectric element, an upper terminal plate, an upper insulator, a nut and a resistor which are covered with resin, comprising: an assembly body stage positioned at a first floor for forming an assembly body in which the lower insulator, the lower terminal plate, the piezoelectric element, the upper terminal plate and the upper insulator are mounted on the cylindrical base; process stages positioned at a second floor for fastening the assembly body with the nut to form a sensor main body, bending partly the lower and upper terminal plates of the sensor main body and connecting by welding the resistor between the lower and upper terminal plates which are partly bent in the sensor main body; and an elevator for transferring the assembly body from the first floor to the second floor so that the assembly body stage at the first floor and the process stages at the second floor are integrated, wherein each of the lower and upper insulators is identical and each of the lower and upper terminal plates is identical, and, further, wherein the assembly body stage comprises a first laminate forming device of assembling a first laminate in which the lower insulator, the lower terminal plate and the piezoelectric element are sequentially piled up on top of one another, a second laminate forming device of assembling a second laminate in which the upper insulator and the upper terminal plate are sequentially piled up, a first assembly device of mounting the first laminate on the cylindrical base, and a second assembly of mounting the second laminate on upside down on the first laminate mounted on the cylindrical base to form the assembly body.