| 摘要 |
A switch arrangement with multiple switches that can be selectively actuated by operation of a single lever, is of simple construction and occupies a minimum of space on a circuit board. The arrangement includes a housing (100) with a vertical axis (V) and an actuating lever (50) lying along the axis and pivotable about horizontal axes (102, 104). Upper and lower West switches (114, 116) that lie West of the axis, are actuated, one when the lever top is moved West and the other when the lever top is moved East. Similarly, upper and lower South switches (117, 118) are actuated, one when the lever top is moved South and the other when the lever top is moved North. Each pair of switches includes a pair of resilient trip members (32W, 33W and 32S, 33S), and with an arm (68W, 68S) extending horizontally from the middle of the lever and lying between the centers of the trip members. The lever includes a spherical body (48) lying in a spherical recess (46) of the housing to enable the lever to pivot, and a plunger (53) that is vertically slideable in a passage (58) in the spherical body, so when the plunger is depressed it depresses a snap dome trip member (132) to close a fifth switch under the lever. The snap dome biases the plunger upwardly, and the plunger can press upwardly against the spherical body to hold it in the recess.
|
