Attachment structure of fuel injection device nozzle plate

An attachment structure of a fuel injection device nozzle plate having a nozzle hole for atomizing and injecting fuel flowing from a fuel injection port of a fuel injection device, wherein:

• the fuel injection device nozzle plate includes a cylindrical fitting part to be fitted onto a front end side of a valve body of metal having the fuel injection port and a bottom wall part formed so as to block one end side of the cylindrical fitting part, the bottom wall part abutting against a front end surface of the valve body and having the nozzle hole,
• the cylindrical fitting part and the bottom wall part of the fuel injection device nozzle plate are made of synthetic resin and formed integrally,
• the valve body is provided with an outer periphery around which an annular interlocking groove is formed,
• the cylindrical fitting part is provided with a ring attachment groove to which a fixing ring is attached and the fixing ring is interposed between a groove wall of the ring attachment groove and a groove wall of the interlocking groove and fixed to the valve body while being retained when the fixing ring is attached to the ring attachment groove in a state in which the bottom wall part abuts against the front end surface of the valve body, and
• the bottom wall part includes a valve body abutment part abutting against the front end surface of the valve body and a recessed portion generating space with respect to the front end surface of the valve body having abutted against the valve body abutment part and moving the cylindrical fitting part having been fitted onto the valve body in a direction in which the space is narrowed.