Multiple circuit switch device with drain passage

Details Multiple circuit switch device with drain passage Multiple circuit switch device with drain passage

1989-04-18

1990-11-06

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200306, H01H 902, H01H 2504

Patent

active

049688626

ABSTRACT:
In a switch device including a case, a partition wall formed in the case, a plurality of switch elements provided under the partition wall, each the switch element having an actuator, and an operating knob rockably mounted over the partition wall for driving the actuator of the each switch element; the improvement comprising a plurality of cylindrical walls formed to upwardly project from the partition wall, each the cylindrical wall defining a through-hole therein, a driving rod vertically movably inserted into the each through-hole and having upper and lower ends abutting against the operating knob and the actuator of the switch element, and a drain passage formed in a side wall of the case for discharging a liquid having entered a space of the case over the partition wall to the outside of the case. That is, the through-hole is closely engaged with the driving rod. The cylindrical wall surrounding the through-hole projects over the partition wall. Accordingly, even when the liquid such as rainwater enters the case from a gap around the operating knob, it is prevented that the liquid will flow to the switch elements. Further, the liquid having entered the case may be positively discharged through the drain passage to the outside of the case.

REFERENCES:
patent: 3627935 (1971-12-01), Spievak
patent: 4428649 (1984-01-01), Main
patent: 4560845 (1985-12-01), Takamura et al.
patent: 4611102 (1986-09-01), Ishida

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