Abstract

Provided is a timepiece dial and a timepiece. In a timepiece dial, a surface decoration including a plurality of protrusion portions is formed on a first main surface. In at least one of the protrusion portions, inclination angles of a first inclined surface that increases in height toward a vertex and a second inclined surface that decreases in height from the vertex are different in a first cross-section perpendicular to a first direction. In the first cross-section, two or more of the plurality of protrusion portions have different heights. There are two or more of the protrusion portions in a second cross-section perpendicular to a second direction perpendicular to the first direction along a first main surface.

IPC Classes  ?

• G04B 19/10 - Ornamental shape of the graduations or the surface of the dialAttachment of graduations to the dial

Abstract

Provided is a stepping motor control device that prevents a terminal voltage of a battery from decreasing even when a plurality of motors are driven simultaneously at a high speed. The stepping motor control device includes: a control unit configured to control a driving unit that drives a plurality of motors including a first motor driven at a prescribed driving cycle, and a second motor driven at a driving cycle that is the same as or an integral multiple of the driving cycle of the first motor to drive the motors by outputting a driving pulse; and a storage unit configured to store a width of the first driving pulse and a width of the second driving pulse. When a sum of a pulse width of the first driving pulse and a pulse width of the second driving pulse is longer than the driving cycle of the first motor, in the driving cycle of the first motor, a part of the first driving pulse and at least a part of the second driving pulse are simultaneously output, and a pause period is provided, in which neither the first driving pulse nor the second driving pulse is output after the first driving pulse and the second driving pulse are output and before a start timing of a next driving cycle of the first motor.

IPC Classes  ?

• H02P 8/40 - Special adaptations for controlling two or more stepping motors
• G04C 3/14 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Abstract

A timepiece includes a case, a dial having a circular plate shape and accommodated in the case, an inner rotating ring formed in a ring shape along an outer peripheral edge of the dial and rotatable in a circumferential direction, a rotation operation unit configured to rotate the inner rotating ring, and a rotation restriction unit configured to restrict an operation of the rotation operation unit. The inner rotating ring includes a plurality of tooth portions. The rotation operation unit includes a rotation shaft portion rotatable around a shaft center along a radial direction of the dial, and a drive transmission gear provided in the rotation shaft portion and meshing with the tooth portions to rotate the inner rotating ring. A plurality of locking portions is formed in the drive transmission gear at different positions in a direction around a shaft. The rotation restriction unit includes a lock receiving portion biased toward the locking portion and detachably locked to the locking portion. The lock receiving portion restricts rotation of the drive transmission gear by being locked to the locking portion.

IPC Classes  ?

• G04B 3/04 - Rigidly-mounted keys, knobs, or crowns

Abstract

To provide a timepiece dial and a timepiece capable of forming a surface decoration due to unevenness on a substrate and to facilitate polishing work on a substrate surface. A timepiece dial includes a first substrate on which an index protrudes from a first main surface, and a second substrate overlapped on the first main surface. A through hole through which the index is inserted and exposed is formed in the second substrate. A surface decoration having unevenness is formed on the second substrate.

IPC Classes  ?

• G04B 19/06 - Dials
• G04B 45/00 - Time-pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effect

Abstract

There are provided an information display mechanism, a timepiece movement, and a timepiece each capable of achieving a reduction in space. The information display mechanism includes a display wheel which has a plurality of inner teeth, on which information is displayed, and which has a ring-like shape, a driving wheel having a plurality of tooth parts configured to mesh with the inner teeth, and a drive section configured to rotate the driving wheel. The driving wheel is configured to rotate in a state in which the tooth parts and the inner teeth mesh with each other to thereby rotate the display wheel. The display wheel is provided with a regulatory protruding part configured to regulate mesh with the driving wheel. The drive section is configured to rotate the driving wheel in a first direction and a second direction opposite to the first direction.

IPC Classes  ?

• G04B 19/20 - Indicating by numbered bands, drums, discs, or sheets
• G04B 19/253 - Driving or releasing mechanisms
• G04C 3/14 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
• G04C 17/00 - Indicating the time optically by electric means

Abstract

An object of the invention is to prevent a positional deviation of a hand while reducing power consumption. A watch includes: a plurality of hands; a plurality of motors configured to drive or brake the plurality of hands, respectively; a pulse generation unit configured to supply, to the plurality of motors, a drive pulse for driving the hands and a lock pulse for braking the hands; and a control unit configured to control an operation mode including a normal hand movement mode and a tactile read mode, and the pulse generation unit supplies the lock pulse to the motors when the control unit shifts the operation mode to the tactile read mode.

IPC Classes  ?

• G04C 9/08 - Electrically-actuated devices for setting the time-indicating means by electric drive
• G04B 19/06 - Dials

Abstract

An object of the present invention is to provide a hairspring, a timepiece movement, and a timepiece. A hairspring according to the present invention is characterized by being made of a Nb-Mo alloy containing 5% or more and 14% or less of Mo in at%. Alternatively, a hairspring according to the present invention is characterized by being made of a Nb-Mo alloy containing 5% or more and 14% or less of Mo in at%, inevitable impurities and balance Nb. It is preferable that the hairspring has a deformation texture and a region having a <110>||{001} orientation degree in a cross section is 30% or more of an entire cross-sectional area.

IPC Classes  ?

• G04B 17/06 - Oscillators with hairsprings, e.g. balance
• G04B 17/32 - Component parts or constructional details, e.g. collet, stud

Abstract

Provided are a regulator capable of further improving time measurement accuracy as compared with the related art, and a movement and timepiece including the regulator. A regulator includes a regulator pin. The regulator pin includes a pair of regulator pin main bodies and a regulator pin base portion. The regulator pin base portion is formed integrally with the pair of regulator pin main bodies and is held by a regulator body. The regulator pin main bodies are disposed so as to sandwich an outer end portion of a hairspring and contain zirconia. In the regulator pin, by extrusion molding, an outer peripheral surface and an inner peripheral surface of the regulator pin are formed, and the regulator pin main body and the regulator pin base portion are integrally formed.

IPC Classes  ?

• G04B 18/02 - Regulator devicesIndexing devices

Abstract

A strap is provided with a core having a core main body having a plurality of members including at least a member having flexibility is stacked, and a skin member surrounding the core. The core main body is formed of a variable performance member and a special member bonded to each other with thermocompression bonding to be stacked in a face-back direction of a timepiece. The variable performance member has flexibility and temperature dependency, and is formed including plastic.

IPC Classes  ?

• A44C 5/00 - BraceletsWrist-watch strapsFastenings for bracelets or wrist-watch straps
• D04H 3/08 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating

Abstract

A stepping motor control device configured to drive a stepping motor having a rotor and a coil includes: a train wheel including a load gear which has a load tooth whose rotation load is different from that of another tooth and in which the rotor has an odd number of rotation steps when the load gear rotates once, and transmitting a rotation force from the rotor to the hand; a voltage detection unit that detects an induced voltage generated at one end portion of a first end portion and a second end portion of the coil when the rotor vibrates; and a determination unit which, based on a result detected by the voltage detection unit, determines a mechanical load received by the rotor due to contact of the load tooth of the load gear with a tooth meshing with the load gear.

IPC Classes  ?

• G04C 3/14 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
• H02K 37/00 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
• H02K 11/26 - Devices for sensing voltage, or actuated thereby, e.g. overvoltage protection devices
• H02K 11/33 - Drive circuits, e.g. power electronics

Abstract

A stepping motor control device includes a driving unit that drives a stepping motor including a rotor that rotates a hand and a coil that generates a magnetic flux for rotating the rotor, a control unit that outputs, to the driving unit, a driving pulse for rotating the rotor and a swinging pulse for swinging the rotor, a voltage detecting unit that detects an induced voltage generated in the coil when the rotor vibrates, and a determining unit that determines, based on a result of the detection of the voltage detecting unit, a mechanical load received by the rotor.

IPC Classes  ?

• H02M 1/12 - Arrangements for reducing harmonics from AC input or output
• H02P 8/12 - Control or stabilisation of current
• H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Abstract

PRE=[Cr]+3.3[Mo]+16[N]  (1)

IPC Classes  ?

• C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
• C21D 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
• C21D 6/00 - Heat treatment of ferrous alloys
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• G04B 37/22 - Materials or processes of manufacturing pocket watch or wrist watch cases
• G04B 19/28 - Adjustable guide marks or pointers for indicating determined points of time

Abstract

A timepiece includes a first motor having a rotor for rotating a hour hand, and a first train wheel group having a wheel gear rotating based on rotation of the rotor. The first train wheel group includes a third intermediate hour pinion, a first intermediate hour pinion, a twenty four hour wheel gear having a first reference load unit disposed to mesh with the third intermediate hour pinion so that a load received by the rotor fluctuates in a case where the twenty four hour wheel gear meshes with the third intermediate hour pinion, and rotating at a first reduction ratio with respect to the rotor, and a second intermediate hour wheel gear having a second reference load unit disposed to mesh with the first intermediate hour pinion so that the load received by the rotor fluctuates in a case where the second intermediate hour wheel gear meshes with the first intermediate hour pinion, and rotating at a second reduction ratio lower than the first reduction ratio with respect to the rotor.

IPC Classes  ?

• G04C 3/14 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
• G04B 19/02 - Back-gearing arrangements between gear train and hands

Goods & Services

(1) Personal digital assistants in the shape of watches, namely smartwatches

Goods & Services

Watches, clocks, stopwatches, horological and chronometric apparatus and instruments; cases and parts for all of the aforesaid goods.

Goods & Services

Watches, clocks, stopwatches, horological and chronometric apparatus and instruments; cases and parts for all of the aforesaid goods.

Goods & Services

(1) Watches, clocks, stopwatches, cases and parts for all the aforesaid goods

Goods & Services

Watches, clocks, stopwatches, horological and chronometric apparatus and instruments; cases and parts for all of the aforesaid goods.

Goods & Services

Watches, clocks, stopwatches, horological and chronometric apparatus and instruments; cases and parts for all of the aforesaid goods.

Abstract

A rotating bezel (200) is substantially composed of a body (201) and an operation guide section (240) provided on the outer edge of the body (201). The operation guide section has knurls (247) each having a first surface (245) and a second surface (247) that are formed from an upper surface (201a) to a lower surface (201b) of the body (201) of the rotating bezel and having a third surface (246) connecting the first and second surfaces by a progressively increasing curvature radius R. The first surface (245) is inclined, in a front view of the rotating bezel, relative to the upper surface by a first inclination angle &agr; and is formed from the upper surface (201a) across to the lower surface (201b). Further, the second surface (247) is inclined, in a front view of the rotating bezel (200), relative to the upper surface (201a) by a second inclination angle &bgr;, which is greater than the first inclination angle &agr;, and is formed from the upper surface (201a) across to the lower surface (201b).

IPC Classes  ?

• G04B 19/28 - Adjustable guide marks or pointers for indicating determined points of time

Goods & Services

boxes, namely, watch boxes not of metal

Goods & Services

Precious metals and their alloys and goods of precious metals or coated therewith; jewellery, precious stones; watches, clocks and stop watches, horological and chronometric apparatus and instruments; cases, watch boxes, parts and fittings for all the aforesaid goods.

Goods & Services

(1) Watches, clocks, stop watches; cases, parts, watch boxes and fittings for all the aforesaid goods.

Goods & Services

Métaux précieux et leurs alliages et objets en ces matières, leurs alliages ou en plaqué, joaillerie, bijouterie, pierres précieuses; horlogerie et autres instruments chronométriques et leurs parties, en particulier montres, montres-bracelets, horloges, pendules, pendulettes, réveils, chronomètres, bracelets de montres, cadrans, boîtes, boîtiers, fournitures d'horlogerie, écrins et étuis pour l'horlogerie et la bijouterie.

Goods & Services

(1) Repair of horological chronometric instruments.

Goods & Services

(1) Montres étanches et leurs parties constitutives.

Goods & Services

(1) Watches. (2) Clocks.