| 摘要 |
A push switch (1) includes an internal button (40), an external button (10), a switch (30) disposed inside the internal button (40), a casing (50) fixed to a side wall (43) of the internal button (40), an inner collar portion (51) provided in the casing (50) and engaged with a groove portion (46) of the internal button (40), an overhanging portion (17) formed in the external button (10), and an outer collar portion (47) formed in the internal button (40) and located between the overhanging portion (17) and the inner collar portion (51) so as to define a part of the groove portion (46). The overhanging portion (17) is disposed separately from the outer collar portion (47) by a gap. The overhanging portion (17) abuts against the outer collar portion (47) when the external button (10) is pushed to elastically deform the internal button (40) to thereby turn on the switch (30). |
