| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil pulse tool ensuring stable operation by preventing oil pulses from idling. SOLUTION: This oil pulse tool is constituted by arranging a liner being rotated and driven, a main shaft provided in the liner to rotate relatively and freely, and a blade being energized on an inner peripheral face of the liner by facing the outside in the radial direction in a planar groove passing through a shaft axis of the main shaft by a spring to rotate the main shaft impulsively by the rotation of the liner. The oil pulse tool also includes: a sealing part provided linearly in the axial direction in the liner on one side or both sides of a side face in the direction of rotation of the blade; and one or more recessed parts in a section where the planar groove passing through the shaft axis of the main shaft does not come into contact with a linear part in the axial direction of the outermost peripheral corner part. COPYRIGHT: (C)2011,JPO&INPIT |
