| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a working fluid feeder for grinding an inner surface, ensuring strength of an arm supporting a nozzle head, feeding enough working fluid, and facilitating maintenance. <P>SOLUTION: The arm 7 supporting the nozzle head 6 arranged between the outer peripheral surface 4a of a grinding wheel 4 and a workpiece 5 includes: an inner arcuate cross-sectional surface member 71 having an arcuate cross-sectional surface perpendicular to an axis; an outer arcuate cross-sectional surface member 72 having the arcuate cross-sectional surface perpendicular to the axis; and sidewall members 73, 74 forming both the side surfaces of the inner and outer arcuate cross-sectional surface members. A communication passage 10 having a fan-shaped cross-sectional surface perpendicular to the axis is formed. A hinge 9 is provided between a closing member 8 provided on the lateral of the wheel spindle stock 2 of the arm 7 and the wheel spindle stock so that the arm is swung in a direction perpendicular to the axis of the grinding wheel. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
