Patent ID: 9415476
Filing Date: 2016-08-16
CPC Classification: A47L,B05B,B23Q

Claim Text:
1. A coolant application device, comprising: a housing having a large diameter bore portion and a small diameter bore portion; a guide member fitted into the large diameter bore portion; a nozzle that spouts coolant; a hollow shaft that has a coolant passage therein and is connected with the nozzle, the hollow shaft being rotatively and fluid-tightly inserted into the housing; a hybrid stepping motor that has an output shaft and adjusts a rotation angle of the nozzle to direct the coolant to a desired angle; a plurality of ports that are arranged at a lateral wall of the hollow shaft and communicate with the coolant passage; and an inlet passage that is arranged in the housing and communicates with the coolant passage through the plurality of ports wherein: the hollow shaft coaxially engages with an output shaft of the motor in a space of the housing, the motor and the housing being arranged in series along an axial direction of both of the hollow shaft and the output shaft of the motor, the motor and the housing directly engage each other, a nozzle chamber is formed in the large diameter bore portion between the small diameter bore portion and the guide member, the plurality of ports are located in the nozzle chamber, and the nozzle chamber is configured to be wider than the inlet passage.