摘要:
A calendar timepiece has a main plate, a time indicator mounted on the main plate for undergoing rotational movement to indicate time information, a date indicator mounted for undergoing rotation to indicate date information, and a date indicator driving wheel mounted on the main plate for undergoing rotation. A date jumper is disposed on the main plate and has a train wheel comprised of a date indicator setting portion for controlling rotation of the date indicator by engagement with the inner teeth portion of the date indicator. The date indicator setting portion has a first setting portion for contacting a tip of a first tooth of the date indicator, a second setting portion, and a third setting portion for contacting a tip of a second tooth of the date indicator. Each of the first, second, and third setting portions has a generally linear surface portion disposed at an angle relative to one another.
摘要:
To realize a chronograph timepiece capable of firmly and simultaneously zeroing an hour heart cam, a second heart cam and a minute heart cam. A chronograph timepiece of the invention includes a hammer operated by operating a reset button for controlling to operate to zero an hour chronograph wheel & pinion, a minute chronograph wheel & pinion and a second chronograph wheel & pinion. When the hammer is brought into contact with an hour heart cam, a second heart cam and a minute heart cam, a position of the hammer is determined only by the hour heart cam, the second heart cam and the minute heart cam. When the hammer is brought into contact with the hour heart cam, the second heart cam and the minute heart cam, a direction of a press force exerted to the hammer is constituted to pass a rotational center of the second chronograph wheel.
摘要:
To provide a self-winding timepiece having a thin and small-sized movement in which a train wheel setting apparatus for setting a balance with hairspring is efficiently arranged at the movement. A self-winding timepiece includes a main plate, a time indicating wheel, a winding stem and a switching apparatus. A movement barrel complete is arranged on a top side of the main plate and arranged to overlap a main plate reference horizontal axis line between a first region and a fourth region. A balance with hairspring is arranged on the top side of the main plate and arranged to overlap the main plate reference horizontal axis line between a second region and a third region. The switching apparatus is arranged on a back side of the main plate. A train wheel setting apparatus includes a train wheel setting portion for setting the balance with hairspring by penetrating the main plate. A portion of the train wheel setting portion of the train wheel setting apparatus for setting the balance with hairspring is disposed in the second region and a rotating center of the train wheel setting apparatus is disposed in the second region.
摘要:
A multifunctional watch has a movement including first and second train wheel rotational centers each arranged at a position between a center of a main plate and an outline portion of the main plate. The first and second train wheel rotational centers are provided with respective first and second train wheel guide portions rotatably guiding respective first and second train wheel members about the respective first and second train wheel rotational centers. A first train wheel having the first train wheel member is arranged rotatably relative to the first train wheel rotational center for rotating one of the small hands only in a single direction of rotation to display the first calendar information. A second train wheel having the second train wheel member is arranged rotatably relative to the second train wheel rotational center for rotating another of the small hands only in a single direction of rotation to display the second calendar information.
摘要:
To realize a multifunctional watch which is constituted so as to be capable of forming a plurality of movement layouts without changing sizes and shapes of components for the movement only by changing positions where the components are incorporated. A movement 201 of a multifunctional watch is provided with a first train wheel rotational center and a second train wheel rotational center. The first train wheel rotational center and the second train wheel rotational center are aligned on a position between a main plate center 202c of a main plate 202 and a main plate outline portion of the main plate 202. On the first train wheel rotational center and the second train wheel rotational center, a train wheel guide portion for rotatably guiding a train wheel member is disposed, respectively. A train wheel for displaying time information or calendar information is aligned rotatably for on of the first train wheel rotational center and the second train wheel rotational center.
摘要:
To realize a small-sized analog multifunction timepiece by adopting a fan shape moving hand mechanism which does not use a hairspring. A multifunction timepiece of the invention is provided with a day display mechanism for operating a small hand moving in a fan shape. The day display mechanism is provided with a day indicator driving wheel, a day jumper, a small day wheel for displaying calendar information, a hammer constituted to rotate based on rotation of a day indicator transmission wheel, and a day return spring for exerting a rotational force to the small day wheel. By bringing a cam contact portion of the hammer to a transmission cam outer periphery portion and exerting an elastic force to a return cam outer shape portion by a return spring portion of the day return spring, the small day wheel is constituted to be exerted with a rotational force in a constant direction.
摘要:
A mechanical timepiece movement has a mainspring serving as a power source, a wheel train rotated by a rotational force produced by the mainspring for driving a display, and an escapement and speed control apparatus for controlling rotation of the wheel train and having a balance with hairspring, an escape wheel and pinion and a pallet fork. A stud holder is rotatably mounted with respect to a central axis of the balance with hairspring and a hairspring holder is attached to the stud holder to undergo movement in a direction orthogonal to the central axis of the balance with hairspring. A hairspring has a central portion fixed to the balance with hairspring and an outer portion fixed to the hairspring holder. The hairspring is adjustable by pivoting the hairspring holder.
摘要:
There is realized a multifunction timepiece constituted to be able to constitute a plurality of types of hand operating train wheels by only changing positions of integrating parts without changing dimensions and shapes of parts of a movement.A movement of a multifunction timepiece includes a first train wheel rotation center, and a second train wheel rotation center. A train wheel for indicating calendar information is arranged to be rotatable relative to one of the first train wheel rotation center, and the second train wheel rotation center. When the first train wheel rotation center is arranged with a train wheel for indicating calendar information, the calendar information can be indicated by a small hand rotated to move by the train wheel, when the second train wheel rotation center is arranged with a fan shape hand operating train wheel for indicating the calendar information, the calendar information can be indicated by a small hand moved in a fan shape operating train wheel.
摘要:
To realize an analog multifunction timepiece capable of realizing plural movement layouts including a fan shape moving hand train wheel by only changing positions of integrating parts without changing dimensions and shapes of the parts of movements. A movement of a multifunction timepiece is provided with a first train wheel rotational center, a second train wheel rotational center, a third train wheel rotational center and a fourth train wheel rotational center. Calendar information can be displayed by a small hand moving to rotate centering on the first train wheel rotational center and the second train wheel rotational center. Calendar information can be displayed by a small hand moving in a fan shape centering on the third train wheel rotational center and the fourth train wheel rotational center.
摘要:
There is realized a multifunction timepiece constituted to be able to constitute a plurality of types of hand operating train wheels by only changing positions of integrating parts without changing dimensions and shapes of parts of a movement.A movement of a multifunction timepiece includes a first train wheel rotation center, and a second train wheel rotation center. A train wheel for indicating calendar information is arranged to be rotatable relative to one of the first train wheel rotation center, and the second train wheel rotation center. When the first train wheel rotation center is arranged with a train wheel for indicating calendar information, the calendar information can be indicated by a small hand rotated to move by the train wheel, when the second train wheel rotation center is arranged with a fan shape hand operating train wheel for indicating the calendar information, the calendar information can be indicated by a small hand moved in a fan shape operating train wheel.