| 摘要 |
<p>Providing an electric tool capable of mitigating the starting shock in a stable manner. In an electric disc grinder, there is provided, between a driven gear (26) and a spindle (30) in a torque transmission system, a C-shaped spring member (44) capable of elastic deformation in a diameter enlarging direction. With respect to the rotating direction, the spring member (44) is engaged with a driving protrusion (48) of the driven gear (26) and a driven protrusion (50) of a joint sleeve (42) of the spindle (30); when transmitting the rotation of the driven gear (26) to the spindle (30), the spring member undergoes elastic deformation in the diameter enlarging direction depending on the driven side load, thereby mitigating the starting shock. An abutment surface (50a) of the driven protrusion (50) is formed as an inclined surface causing an end portion of the spring member (44) contacting with the abutment surface (50a) to slide radially outwards. As a result, the spring member (44) can easily undergo elastic deformation in the diameter enlarging direction.</p> |
