| 摘要 |
Spring assembly (10) as part of a vibrator (100) for a bone anchored hearing aid, wherein the spring assembly (10) comprises a suspension spring (3, 5) having a first end (11) immovably connected to a mass (20) of the vibrator (100) and a second end (12) immov 5 ably connected to a coupling (30) attachable to a user's skull bone and comprised by the vibrator (100), wherein the spring assembly (10) comprises an adjusting means (1) adapted to adjust a spring rate (K) of the suspension spring (3, 5) between a first spring rate (K1) and a second spring rate (K2), the first rate (K1) being higher than the second rate (K2), so as to move a resonance peak (P) of the vibrator (100). 10 Fig. 2 |
