Nozzle unit for applying damping material, and damping material application apparatus

A nozzle unit for applying damping material onto a work piece, comprising:

• a nozzle that has a discharge port, which has a slit shape, and that discharges the damping material from the discharge port;
• a motor that is fixed to the nozzle;
• and
• a slit width changing device that changes a slit width of the discharge port using rotation of the motor, and
• a rotation transmitting device, wherein:
• the motor is arranged in such an orientation that a first rotary shaft of the motor is aligned in a direction in which the damping material is discharged from the nozzle;
• the rotation transmitting device transmits rotation of the first rotary shaft to a second rotary shaft that extends toward the nozzle;
• the slit width changing device changes the slit width of the discharge port in accordance with rotation of the second rotary shaft;
• the second rotary shaft is formed of a first shaft and a second shaft;
• the first shaft is connected to the rotation transmitting device;
• and
• the second shaft is connected to the first shaft so that the second shaft is slidable in an axial direction with respect to the first shaft and the second shaft is not rotatable with respect to the first shaft.