초록 ▼

A quartz analog watch has a disc with a minute hand thereon driven directly at its periphery by the rotor of a stepping motor. A single intermediate gear and pinion assembly performs a gear reduction to drive a conventional hour hand rotatably mounted on a center spindle which also supports the minu

A quartz analog watch has a disc with a minute hand thereon driven directly at its periphery by the rotor of a stepping motor. A single intermediate gear and pinion assembly performs a gear reduction to drive a conventional hour hand rotatably mounted on a center spindle which also supports the minute disc. The stepping motor watch internal components, including battery, stepping motor, intermediate gear assembly and integrated circuit are all partially hidden beneath the minute disc. A special watch crystal functions also as a top frame member controlling “endshake”of the movement members in conjunction with the caseback. A special metal clip provides a push button contact for electrically setting the watch and also holds the intermediate gear assembly in place.

대표청구항 ▼

In a timepiece of the type having a crystal, a case with a caseback, a stepping motor having a rotor pinion disposed in said case, and an electronic circuit operating said stepping motor to turn said rotor pinion, the improvement comprising: a minute disc rotatably mounted in the case and driven dir

In a timepiece of the type having a crystal, a case with a caseback, a stepping motor having a rotor pinion disposed in said case, and an electronic circuit operating said stepping motor to turn said rotor pinion, the improvement comprising: a minute disc rotatably mounted in the case and driven directly at its periphery by said rotor pinion, a fixed center post disposed in the caseback, a cannon pinion connected to said minute disc, rotatable means extending through said disc and said cannon pinion, comprising a sleeve rotatably mounted on said center post and having an hour wheel connected to its lower end, an hour hand mounted above said disc between the disk and the crystal on said rotatable means, and an intermediate gear and pinion assembly disposed below said disc and adapted to be driven by the cannon pinion and to drive said hour wheel.