Electronic timepiece with internal antenna
AssigneeSeiko Epson Corporation
InventorToshiaki Yanagisawa
Life of this patent
Estimating the term…
Abstract
An electronic timepiece has a main plate 120 for a movement 110 that drives a time display unit inside an outside case 80; an annular antenna 40 housed inside the case 80 and positioned relative to the main plate 120; and aback cover 85 that engages the case 80. A circuit bridge 130 disposed below the main plate 120 has an upward pressure part 131 that pushes the main plate 120 to the time display unit side when the case 80 and back cover 85 are engaged. The main plate 120 has a movement top positioning part 122 that contacts the vertical positioning surface and positions the main plate 120 vertically to the case 80 when the main plate 120 is lifted toward the time display side by the upward pressure part 131.
Claims11
An electronic timepiece with internal antenna, comprising:
- a tubular outside case;
- a time display unit that displays time inside the case;
- a back cover that closes a case opening on the opposite side as the display side of the time display unit;
- a movement including a drive mechanism that drives the time display unit and a main plate that supports the drive mechanism;
- a vertical positioning surface being a portion of the case that projects in the radial direction of the case on the inside of the case;
- and
- an annular antenna that is held inside the case and is positioned relative to the movement;
- the main plate having an upward pressure part that engages the back cover and lifts the movement to the time display side, and
- a movement top positioning part being a portion of the main plate that contacts the vertical positioning surface and positions the movement vertically to the case when the upward pressure part lifts the movement to the time display side.
An electronic timepiece with internal antenna, comprising:
- a tubular outside case;
- a movement housed inside the outside case and including a drive mechanism that drives a time display unit and a main plate that supports the drive mechanism;
- an annular antenna that is held inside the outside case;
- a top member that is disposed above the antenna and covers the antenna, and is separate from the main plate;
- an antenna engaging part that positions the antenna relative to the movement;
- and
- a top member engaging part that positions the top member relative to the movement;
- the antenna engaging part and the top member engaging part being formed with the main plate.
Dependencies are inferred from the claim text.