Electronic timepiece with the amending means
OwnerKenji Yajimainventor
Life of this patent
Estimating the term…
Abstract
Switching functions of an electronic timepiece including switching for time amendment, are controlled by a stem which is rotatable and axially movable. When in neutral axial position, the stem is rotatable to display alternatively hours, minutes and seconds or month and date. When pulled out to its outer axial position, the stem is rotatable in one direction to select the time function (hours, minutes, month or date) to be amended and is rotatable in the opposite direction to supply pulses from a dividing circuit to the counter of the selected time function to effect the desired amendment. When pushed in to an inner axial position, the stem actuates which means to illuminate the time display.
Claims14
An electronic timepiece comprising in combination a base plate, a stem member mounted for rotary movement and axial movement relative to said base plate, a cam member on said stem member and rotatable therewith, electronic circuitry on said base plate including first function-controlling switch means actuatable by axial movement of said stem member and second function-controlling switch means actuatable by said cam member upon rotation of said stem member, said second function-controlling switch means comprising first and second switch portions on said base plate and a spring switch plate mounted on said base plate and having first and second contact portions engageable respectively with said first and second switch portions on said base plate, said switch plate being engageable by said cam member when rotated in one direction to bring said first contact portion of said switch plate into engagement with said first switch portion on said base plate and being engageable by said cam member when rotated in the opposite direction to bring said second contact portion of said switch plate into engagement with said second switch portion on said base plate.
Dependencies are inferred from the claim text.