| 摘要 |
<p>A dual function powered oscillating hand tool comprises (i) a drive unit (5) having an electric motor and a drive shaft (7); (ii) a bearing (15) mounted on the drive shaft (7) and located radially eccentrically relative to the drive shaft (7); (iii) a second drive shaft (14) mounted on the eccentric bearing (15) and (iv) means (13) for mounting a sanding head (20,21) on the second drive shaft (14). The sanding head (20,21) may comprise a sanding platen (21) for random orbit sanding or a sanding shoe (20) for orbital sanding and the tool further comprises means selectively engageable to restrict the random orbit of the sanding shoe (20) to a regular orbit. <MATH></p> |
