| abstract |
A positioning device comprises a frame ( 60 ); a motor ( 61 ) having a drive shaft; a spindle ( 63 ) having a first end ( 71 ) and a second end ( 76 ) and being rotatable in relation to the frame ( 60 ); a coupling ( 62 ) resiliently connecting said drive shaft to said first end ( 71 ) of said spindle ( 63 ) such that the spindle ( 63 ) rotates when the drive shaft of the motor ( 61 ) rotates; and a support assembly ( 72, 74, 75 ) elastically supporting at the frame ( 60 ) at least one of the second end ( 76 ) of the spindle ( 63 ) and the motor ( 61 ). |