Patent ID: 6166999
Filing Date: 2000-12-26
Classification: G04B

Abstract:
A timepiece with spring winding state display having a function of displaying a winding state of a spring which constitutes a power source of a mechanical type timepiece, said timepiece with spring winding state display comprising:a barrel complete (120) having a mainspring (122), a barrel arbor (124), a barrel gear (126) and a barrel cover (128), said barrel gear (126) being constituted to be rotatable only in one direction by rewinding of the mainspring (122);a ratchet wheel (130) supported to rotate integrally with the barrel arbor (124) and rotatable only in one and the same direction as the direction of rotation of the barrel gear (126);a ratchet wheel rotation regulating member (212) for regulating rotation of the ratchet wheel (130) only in one direction;an intermediate ratchet wheel (140) installed rotatably by the rotation of the ratchet wheel (130);a planetary reduction wheel gear (170) installed rotatably by rotation of the barrel gear (126);a planetary wheel (176) installed rotatably to the planetary reduction wheel gear (170) with a center of rotation disposed at a portion different from a center of rotation of the planetary reduction wheel gear (170) and having a first planetary wheel (172) and a second planetary wheel (174) rotatable integrally with the planetary wheel (176);a first sun wheel (150) installed rotatably with the center of rotation of the planetary reduction wheel gear (170) as a center of rotation, having a first sun wheel gear in mesh with the second planetary wheel (174);a second sun wheel (160) installed rotatably with the center of rotation of the first sun wheel (150) as a center of rotation and having a second sun wheel gear (162) in mesh with the intermediate ratchet wheel (140) and a second sun wheel pinion (164) in mesh with the first planetary wheel (172);a sun wheel finger (180) attached to the first sun wheel (150) and having one or more of feeding fingers (180c, 180d);an intermediate power reserve wheel (182) installed intermittently rotatably by the feeding fingers (180c, 180d);a power reserve jumper (188) for regulating a position in a rotational direction of the intermediate power reserve wheel (182); anda spring winding state display member (196) for displaying a spring winding state based on rotation of the intermediate power reserve wheel (182).