| 摘要 |
Arm pieces (64, 65) bend according to the contraction and expansion of piezoelectric elements (66, 67). Driving force acts from the arm pieces (64, 65) to a head slider (23) based on the bending of the arm pieces (64, 65). A fixing piece (62) for fixing the head slider (23) is connected to a head suspension with a flexible long piece (63, 63). The displacement of the head slider (23) is allowed based on the flexure of the long piece (63, 63). As a result, the driving force displaces the head slider (23). The arm pieces (64, 65) are slidably in contact with the surface of the head slider (23) and therefore the bending of the arm pieces (64, 65) is not restrained. The arm pieces (64, 65) are defined individually from the fixing piece (62). The shapes of the arm pieces (64, 65) are freely designed. As a result, a sufficient length is secured in the arm pieces (64, 65). The arm pieces (64, 65) can be transformed with large transformation amount. The displacement amount of the head slider (23) is increased. |
