| 摘要 |
The actuator includes a membrane (5) which, when at rest, rests partially against a rest surface (14) of a membrane plate (16), which membrane plate is displaceable in a housing (1). Pressure can be applied to one side of the membrane. Upon application of pressure, the membrane (5) increasingly leaves the rest surface (14) and increasingly comes to lie against a deposit surface (40) provided on the inside of the housing. As the membrane moves, it moves an actuator element (25). The rest surface (14) includes at least one segment (45) which widens viewed in the movement direction (B), while the deposit surface (40) includes at least one segment (41) which narrows viewed in the movement direction (B).
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