Watch

Patent metadata

Field	Value
Publication number	US-10579019-B2
Application number	US-201615739129-A
Country	US
Kind code	B2
Filing date	Jan 28, 2016
Priority date	Sep 25, 2015
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A watch including: a first drive mechanism including a hand having a rotational axis along a first direction, a wheel train, and a drive power source; and a second drive mechanism including a hand having a rotational axis along a second direction different from the first direction, a wheel train, and a drive power source, wherein the first drive mechanism and the second drive mechanism are mounted separately. Each of the first direction and the second direction is defined along a normal direction to dial at a position of a rotational axis of the hand.

First claim

The invention claimed is:

1. A watch comprising:
a first drive mechanism including a 1st hand having a rotational axis along a first direction, a wheel train, and a drive power source, and
a second drive mechanism including a 2nd hand having a rotational axis along a second direction different from the first direction,
wherein the first drive mechanism and the second drive mechanism are mounted separately,
wherein the watch further comprises a main plate including a first attachment surface and a second attachment surface having different orientations from each other,
wherein the first drive mechanism is fixed such that a standard surface thereof is in contact with the first attachment surface, and
the second drive mechanism is fixed such that a standard surface thereof is in contact with the second attachment surface.

2. The watch according to claim 1 , wherein
the first direction is defined along a normal direction to a dial at a position of the rotational axis of the 1st hand, and
the second direction is defined along the normal direction to the dial at a position of the rotational axis of the 2nd hand.

3. The watch according to claim 1 , wherein
the main plate includes at least a first recess and a second recess,
a bottom surface of the first recess is the first attachment surface, and
a bottom surface of the second recess is the second attachment surface.

4. The watch according to claim 3 , wherein
the first recess and the second recess include wall surfaces that are formed in parallel to a common direction or inclined from a common direction.

5. The watch according to claim 3 ,
wherein the first recess and the second recess are formed on surfaces of the main plate, opposite to each other.

6. The watch according to claim 1 , wherein
the main plate further comprises:
a battery, and
a battery accommodating portion, and
the battery is located inside the battery accommodating portion and is fixed in a position inclined from a thickness direction of the watch.

7. The watch according to claim 4 , wherein
the main plate further comprises:
a battery accommodating portion,

a battery located inside the battery accommodating portion, wherein the battery is fixed in an inclined position, from a thickness direction of the watch, and
the battery accommodating portion includes a wall surface that is formed in parallel to the common direction or formed with a taper, inclined from the common direction.

8. The watch according to claim 6 , further comprising:
a first battery pressing member located on a near side, when viewed from an opening side of the battery accommodating portion, located at a circumferential position thereof, and supporting an upper surface of the battery; and
a second battery pressing member located on a far side, when viewed from the opening side of the battery accommodating portion, and pressing a lateral side surface of the battery.

9. The watch according to claim 6 , further comprising an electrode extending and including a linear distal edge that is oblique from an extending direction thereof and is in elastic contact with a lower surface of the battery.

10. The watch according to claim 1 , wherein
the first drive mechanism and the second drive mechanism include circuit boards, respectively, and
the circuit board of the first drive mechanism and the circuit board of the second drive mechanism are connected to each other through a flexible printed circuit.

11. The watch according to claim 10 , wherein
the circuit board of the first drive mechanism and the circuit board of the second drive mechanism include connection terminals, respectively.

Assignees

• Citizen Watch Co Ltd

Inventors

• Kitajima Yasuo
• Takahashi Hiroyuki
• Miyajima Kyohei
• Naito Yuichi

Classifications

• G04B29/02 Primary

  Plates; Bridges; Cocks · CPC title

• G04B19/04

  Hands; Discs with a single mark or the like {(moving indicating arrangements which have scales or numbers with stationary hands or reading means G04B19/20; optical projection of the position of the hands G04B19/34)} · CPC title

• G04C3/00

  Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C15/00) · CPC title

• G04B45/0069

  Cases and fixed parts with a special shape (movable parts with a special shape G04B45/0061; decoration in general, and methods of manufacture thereof G04B45/0076; cases in general G04B37/00; combination with genuine utensils or mounting therein G04B47/00) · CPC title

• G04B19/00

  Indicating the time by visual means ({indicating the time optically by electric means G04C17/00, e.g.} by electric lamps G04C17/02; display arrangements in general G09F) · CPC title