| 摘要 |
<p>A switch-based sensor apparatus (12) is disposed between the bottom cushion (18) and frame (16) of a seat (10). The sensor apparatus (12) includes upper and lower rigid and generally parallel force translation plates (22, 24) biased apart by a set of springs (26), and a switch assembly (28). The force translation plates (22, 24) are joined so as to pre-load the springs (26) while permitting closing movement between the upper and lower force translation plates (22, 24) in response to occupant seat force that exceeds the pre-load force of the springs (26). The switch assembly (28) includes a circuit board (34) and elastomeric switch pad (36) defining one or more switch elements (36a, 36b) that are actuated by a prescribed closing movement between the upper and lower force translation plates (22, 24) for electrically detecting the presence of a seat occupant.</p> |
