| 摘要 |
A push button actuator unit has a housing which defines a through passage that extends along an axis of the housing, and a slot that extends in a plane which transversely intersects the axis and communicates with the passage for supporting in the housing-defined slot a disc-shaped member having a central opening that aligns with the passage. Movable in the aligned passage and opening is a push button sub-assembly of the unit which includes a front element that, when depressed rearwardly, may cause a rear element of the push button sub-assembly to extend rearwardly from the housing to release a latch or to operate a switch or the like. If the unit is to be lockable, an optional locking mechanism is added to the elements of the push button sub-assembly to selectively drivingly connect the front and rear elements so that depression of the front element will cause rearward extension of the rear element only when the unit is unlocked. The disc-shaped member interacts with other components of the unit to regulate the movement of selected elements of the push button sub-assembly relative to the housing, for example by limiting element translation along the axis and/or by inhibiting the turning of selected elements of the push button sub-assembly about the axis.
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