Staff And Bearing Details Patents (Class 368/324)
  • Patent number: 9678479
    Abstract: A shock-absorber bearing for a staff of a moving part of a timepiece, the bearing including a support including a housing configured to receive a pivot module configured to cooperate with the staff, and an elastic mechanism configured to exert at least one axial force on the pivot module to retain the module in its housing.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 13, 2017
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Yves Girardin, Ivan Villar
  • Patent number: 9298162
    Abstract: This timepiece includes a movement with a diameter of less than 40 mm which comprises a barrel (1) for the housing of a mainspring and of which the diameter is less than the radius of said movement. The barrel (1) comprises a cylindrical lateral wall (2), surrounded by a tooth gear (3), of which each edge (21, 21?) is closed by a disk (4, 4?) traversed axially by an opening (5, 5?) for pivoting of a barrel arbor (7). The height of the housing is between 85% and 97% of the total height of the periphery of the barrel (1).
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: March 29, 2016
    Assignee: ROLEX SA
    Inventor: Elio Mariotto
  • Patent number: 8944676
    Abstract: An assembly including a member made of a first material, which is axially driven into a circular aperture of a part made of a second material that is brittle, using an intermediate part made of a third material and mounted between the member and the part is disclosed. The intermediate part is a continuous cylinder including a hole for receiving the member so that the intermediate part absorbs radially and in a uniform manner, at least part of the axial driving force of the member. The part includes pierced holes forming elastic deformation units distributed around the circular aperture thereof for absorbing any of the radial force not absorbed by the intermediate part, so as to secure the assembly in a non-destructive manner for the part.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: February 3, 2015
    Assignee: ETA SA Manufacture Horlogére Suisse
    Inventors: Thierry Conus, Marco Verardo, Frédéric Kohler, Igor Saglini, Andrés Cabezas Jurin, Jacques Jacot, Maxence Perret-Gentil
  • Publication number: 20150003215
    Abstract: A method for manufacturing a component in a substrate including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; and b) chemically etching the at least one region to selectively manufacture the component.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 1, 2015
    Applicant: The Swatch Group Research and Development Ltd.
    Inventors: Thierry Hessler, Nicolas Rebeaud, Jean-Luc Helfer, David Richard, Sebastien Graf
  • Patent number: 8845184
    Abstract: The invention relates to a system of assembling a member, made of a first material, in the aperture of a part made of a second material having no usable plastic domain, using an intermediate portion (7, 27, 47, 67, 87) made of a third material, mounted between said member and said part. According to the invention, the part is accommodated against a first level (6) of the intermediate portion and is resiliently locked on a second level of the intermediate portion by the member in order to secure together the unit comprising the member—intermediate portion—part. The invention concerns the field of timepieces.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: September 30, 2014
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre Cusin, Marc Stranczl, Daniel Mallet, Emmanuel Graf
  • Publication number: 20140254332
    Abstract: The invention relates to a bearing comprising a sintered ceramic body traversed by a hole. According to the invention, the body includes a top surface and a bottom surface each of which includes a functional element communicating with said hole.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 11, 2014
    Applicant: Comadur S.A.
    Inventors: Bruno BESUTTI, Marie-Claire Barata, Christian Russi
  • Patent number: 8807828
    Abstract: A timepiece includes: —a barrel bridge (33), and—a barrel mounted on the barrel bridge, the barrel having: —a drum (20) which includes an end wall and side walls, —an arbor (14) which passes through the center of the drum, —a leaf spring housed in the drum and engaging at a first end with the arbor and at a second end with the drum, and—a cover (28) through which the arbor passes freely and which closes the drum, —a ratchet wheel (30) secured to the arbor to tension the leaf spring. The drum is pivoted by a first ball bearing including an intermediate ring (36), an inner ring (42) secured to the arbor and an outer ring (38), one of the intermediate ring and the outer ring being fixed to the barrel bridge and the other being secured to the end wall.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: August 19, 2014
    Assignee: Eterna SA Fabrique d'horlogerie
    Inventor: Patrick Kury
  • Patent number: 8777481
    Abstract: The timepiece movement includes a shock absorber bearing for a rotating wheel set, formed of an elastic device having a rigid central part and an elastic structure connected to said central part and extending at the periphery thereof, the central part having an aperture in which a pierced jewel is arranged and being materially connected to the timepiece movement via the elastic structure. This bearing further includes an endstone, which forms a top stop member for the pivot of the rotating wheel set and is assembled to said central part so as to move integrally therewith. This endstone extends at least partially above the elastic structure and is secured to the central part by a material connection between said central part and the bottom surface of the endstone.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: July 15, 2014
    Assignee: The Swatch Group Research and Development Ltd
    Inventors: Thierry Conus, Jean-Jacques Born
  • Patent number: 8740452
    Abstract: Timepiece sub-assembly including a spacer for guiding a pivoting wheel set on a bottom plate and including a shoulder for cooperating with a housing in the bottom plate and a stop surface for abutting against the bottom plate. It includes a drive means fixed to the wheel set, arranged to slide relative to the spacer with an axial shake, determined between a first stop position between a collar of the wheel set and a front face of the spacer, and a second stop position between a stop surface of the drive means and a rear face of the spacer. The wheel set includes, opposite the collar, a machined portion arranged to cooperate with a complementary machined portion of a display element to fixedly secure the display element to the wheel set.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: June 3, 2014
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Laurent Kaelin, Julien Moulin
  • Patent number: 8702301
    Abstract: A timepiece bearing has a bearing member of unitary construction that is provided at least at one end portion of a shaft member for undergoing rotation around an axis and that regulates movement of the shaft member in axial and radial directions of the shaft member. An elastic member applies an urging force in an axial direction of the bearing member to hold the bearing member in contact with the shaft member. A frame member supported by and fixed to a support member contains the bearing member. The elastic member is provided so as to establish connection between the bearing member and the frame member. The shaft member is configured to undergo rotation around the rotational axis while the shaft member and the bearing member are held in contact with each other by the elastic member.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: April 22, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Masashi Hiraoka, Masahiro Nakajima, Takashi Niwa
  • Patent number: 8579501
    Abstract: Anti-shock device for the protection of a timepiece component pivotally mounted between a first and a second end in a chamber. The component is freely mounted in the chamber between pole pieces, which are distinct from the component and located in proximity to the chamber and the device includes a device for attracting the first end held in abutment on only the first pole piece, and a device for attracting the second end towards a second pole piece, the devices for attracting the first end and the second end, which are of magnetic and/or electrostatic nature, can move along an axial direction between stop members.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: November 12, 2013
    Assignee: Montres Breguet S.A.
    Inventors: Sylvain Marechal, Davide Sarchi
  • Patent number: 8568020
    Abstract: A timepiece includes a frame (1a, 1b) and a gear pivotably mounted on the frame (1a, 1b) via at least one pivoting member (5a, 5b) which includes a bearing and a pivot inserted in the bearing, at least the contact surfaces of the bearing and the pivot being made from at least one material with an intrinsically low friction coefficient and a low wear rate, the gear including at least one plate (2a, 2b) provided with a first hole (3a, 3b). The pivoting member includes a first plate (6a, 6b) provided with a second hole (8a, 8b) and forming the bearing, and a second plate (7a, 7b) provided with a small rod (9a, 9b) inserted in the first and second holes and forming the pivot, one of the first (6a, 6b) and second (7a, 7b) plates being rigidly connected to the gear and the other to the frame (1a, 1b).
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: October 29, 2013
    Assignee: CompliTime SA
    Inventors: Stephen Forsey, Robert Greubel
  • Patent number: 8485719
    Abstract: A pivot organ (5a, 5b) designed to allow the rotation of a piece (3) of a clockwork movement around an axis of rotation, includes two elements: a pivot (7a, 7b) and a bearing (6a, 6b) receiving the pivot (7a, 7b), one being integral with the piece (3) and the other being integral with the frame (1) of the movement. The elements (6a, 6b, 7a, 7b) have shapes at their opposite surfaces such that the section of one of the elements along a plane perpendicular to the axis of rotation is circular, the section of the other element along the plane being non-circular, so as to reduce the contact surface between the pivot (7a, 7b) and the bearing (6a, 6b). At least the contact surfaces of the two elements against each other are made from at least one material intrinsically having a low coefficient of friction and a low wear coefficient.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: July 16, 2013
    Assignee: CompliTime SA
    Inventors: Robert Greubel, Stephen Edward Methuen Forsey
  • Publication number: 20130170330
    Abstract: The invention concerns a method of making a controlled or reduced contact or contactless transmission in a timepiece movement. At least one pair of opposing cooperating surfaces of said timepiece movement, one of which drives the other or is supported thereby, is made or transformed by applying a surface or through treatment conferring an electrostatic and/or magnetic charge of the same polarisation and/or magnetisation on said opposing cooperating surfaces, such that said opposing components tend to repel each other when they are moved closer to each other. Said treatment consists in creating or depositing at least one thin layer on said cooperating surface and/or on said opposing cooperating surface. The invention also concerns a timepiece mechanism incorporating at least one pair of opposing components, one of which drives the other or is supported thereby, said pair being made or transformed by implementing this method.
    Type: Application
    Filed: May 11, 2011
    Publication date: July 4, 2013
    Applicant: The Swatch Group Research and Development Ltd
    Inventors: Thierry Hessler, Michel Willemin, Jean-Luc Helfer, Francois Gueissaz, Thierry Conus
  • Publication number: 20130155823
    Abstract: Smooth timepiece bearing (1). It includes a core (5) of plastic material injected into a cavity of revolution (4) of an outer cage (3). It also includes an inner cage (2) contained within said cavity (4) and said core (5) is injected between said inner cage (2) and said outer cage (3). Said core (5) can move with an operating clearance relative to said outer cage (3) and cannot be removed from said outer cage (3) and can move with an operating clearance relative to said inner cage (2), and cannot be removed from said inner cage (2).
    Type: Application
    Filed: December 11, 2012
    Publication date: June 20, 2013
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventor: ETA SA Manufacture Horlogere Suisse
  • Patent number: 8393797
    Abstract: Repairs of clocks with worn wheel pivots may be made with a ball bearing pivot wheel support system. The system may utilize a standard sized ball bearing and a bushing in frictional engagement with an inner race of the ball bearing. The bushing may be bored to provide frictional engagement with the pivot wheel so that the pivot wheel may rotate without relative motion between the wheel pivot and the bushing.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: March 12, 2013
    Inventor: Mark Butterworth
  • Patent number: 8348495
    Abstract: A timepiece includes a striking member and a struck member that is driven when struck by the striking member, at least one of the striking member and the struck member being made from a metallic glass alloy.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: January 8, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Hideki Kamiya
  • Patent number: 8303170
    Abstract: The present invention aims to provide a bearing structure allowing direct adjustment between itself and an opposing bearing even after assembly and a watch equipped with the same. A bearing structure of a watch rotatably supports a forward end portion of a shaft of a wheel with respect to a base body, and includes: a bearing, a bearing support body supporting the bearing and having a male screw portion on an outer peripheral surface concentric with the shaft of the wheel, and an adjustment nut equipped with a female screw portion threadedly engaged with the male screw portion of the bearing support body, regulated in its displacement in the extending directions of the shaft of the wheel by the base body, and adapted to adjust the position of the bearing with respect to the extending direction of the shaft via the bearing support body.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 6, 2012
    Assignee: Seiko Instruments Inc.
    Inventor: Hisashi Fujieda
  • Patent number: 8251574
    Abstract: A differential gear for watch movement may include a central shaft whereon first and second wheels are rotatably mounted, each of which is provided with a toothing arranged to mesh with a toothing of at least one satellite borne by a satellite carrier also mounted on the central shaft. The first and second wheels may be configured to engage first and second mobiles of the watch movement, the central shaft including a toothing configured to engage a third mobile of the watch movement. Further, the satellite carrier may be secured in rotation with the central shaft by a friction device comprising a tube having a first portion arranged bearing against the central shaft and at least one second portion arranged bearing against the satellite carrier. The tube may include a substantially cylindrical skirt, wherein at least one first tab is formed in such a way that it exerts a force having a radial component on the satellite carrier.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: August 28, 2012
    Assignee: Samep S.A.—Montres Emile Pequignet
    Inventors: Huy Van Tran, Ludovic Perez
  • Patent number: 8206029
    Abstract: The part is made from a plate (1) made of a brittle material, such as glass, quartz or silicon and includes at least one aperture (2, 4, 6) for driving in a shaft (5). This aperture is characterized in that it includes alternately rigidifying and positioning zones (8) and resilient deformation zones (10). Application to securing a shaft onto the moving parts of a timepiece movement.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 26, 2012
    Assignee: Nivarox-FAR S.A.
    Inventors: Frédéric Vaucher, Raymond Gabus, Marco Verardo
  • Publication number: 20120155231
    Abstract: The timepiece movement includes a shock absorber bearing (70) for a rotating wheel set, formed of an elastic device (72) having a rigid central part (74) and an elastic structure (26) connected to said central part and extending at the periphery thereof, the central part having an aperture in which a pierced jewel (10) is arranged and being materially connected to the timepiece movement via the elastic structure. This bearing further includes an endstone (82), which forms a top stop member for the pivot of the rotating wheel set and is assembled to said central part so as to move integrally therewith. The bearing is characterized in that the endstone extends at least partially above the elastic structure and in that it is secured to said central part by a material connection between said central part and the bottom surface (83) of the endstone.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 21, 2012
    Applicant: THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD
    Inventors: Thierry CONUS, Jean-Jacques BORN
  • Patent number: 8167481
    Abstract: A timepiece wheel train includes a rotating body with a shaft unit, a bearing unit that rotatably supports the shaft unit of the rotating body, and a lubricating oil in which powder from a diamond-like carbon film is dispersed disposed between the shaft unit and the bearing unit.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: May 1, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Masao Takeuchi, Masami Murai, Shigeaki Seki, Tomokazu Yoshida
  • Publication number: 20110273969
    Abstract: A timepiece includes a frame (1a, 1b) and a gear pivotably mounted on the frame (1a, 1b) via at least one pivoting member (5a, 5b) which includes a bearing and a pivot inserted in the bearing, at least the contact surfaces of the bearing and the pivot being made from at least one material with an intrinsically low friction coefficient and a low wear rate, the gear including at least one plate (2a, 2b) provided with a first hole (3a, 3b). The pivoting member includes a first plate (6a, 6b) provided with a second hole (8a, 8b) and forming the bearing, and a second plate (7a, 7b) provided with a small rod (9a, 9b) inserted in the first and second holes and forming the pivot, one of the first (6a, 6b) and second (7a, 7b) plates being rigidly connected to the gear and the other to the frame (1a, 1b).
    Type: Application
    Filed: December 16, 2009
    Publication date: November 10, 2011
    Applicant: COMPLITIME SA
    Inventors: Stephen Forsey, Robert Greubel
  • Publication number: 20110164478
    Abstract: The device for pivoting an arbour (11) in a timepiece, includes two pivots (12, 12?; 32) each forming one end of the arbour and two bearings for receiving the two pivots. Each of the pivots includes an approximately cylindrical portion (19, 19?; 39) and a convex rounded portion (13. 13?; 33) that extends the approximately cylindrical portion and gradually decreases in the direction of the end. Each of the bearings includes a pivoting structure (25; 35) held in place elastically, which includes an approximately cylindrical passage traversed by said approximately cylindrical portion (19, 19?; 39) of one of the pivots. The pivoting structure also includes a bearing surface against which the end of said pivot will abut.
    Type: Application
    Filed: April 24, 2008
    Publication date: July 7, 2011
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventors: Thierry Conus, Jean-Luc Helfer
  • Patent number: 7942573
    Abstract: A timepiece includes a platen (10) and a barrel mounted on the platen, the barrel including: a drum (20) with a bottom and side walls; a shaft (14) extending through the drum at the center thereof and provided with pivoting elements (40, 54) on the platen; a leaf spring provided in the drum and co-operating with the shaft at one end and with the drum at the other end; and a lid (28) through which the shaft extends and closing the drum, a ratchet wheel (30) being kinematically connected to the shaft for winding the spring. According to the invention, the drum is pivoted via a first ball bearing (34) having a bushing (36) connected to the platen and another bushing (38) connected to the bottom of the drum.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: May 17, 2011
    Assignee: Eterna SA Fabrique d'horlogerie
    Inventor: Patrick Kury
  • Publication number: 20110044141
    Abstract: A pivot organ (5a, 5b) designed to allow the rotation of a piece (3) of a clockwork movement around an axis of rotation, includes two elements: a pivot (7a, 7b) and a bearing (6a, 6b) receiving the pivot (7a, 7b), one being integral with the piece (3) and the other being integral with the frame (1) of the movement. The elements (6a, 6b, 7a, 7b) have shapes at their opposite surfaces such that the section of one of the elements along a plane perpendicular to the axis of rotation is circular, the section of the other element along the plane being non-circular, so as to reduce the contact surface between the pivot (7a, 7b) and the bearing (6a, 6b). At least the contact surfaces of the two elements against each other are made from at least one material intrinsically having a low coefficient of friction and a low wear coefficient.
    Type: Application
    Filed: March 17, 2009
    Publication date: February 24, 2011
    Applicant: COMPLITIME SA
    Inventors: Robert Greubel, Stephen Edward Methuen Forsey
  • Publication number: 20100315908
    Abstract: A differential gear for watch movement may include a central shaft whereon first and second wheels are rotatably mounted, each of which is provided with a toothing arranged to mesh with a toothing of at least one satellite borne by a satellite carrier also mounted on the central shaft. The first and second wheels may be configured to engage first and second mobiles of the watch movement, the central shaft including a toothing configured to engage a third mobile of the watch movement. Further, the satellite carrier may be secured in rotation with the central shaft by a friction device comprising a tube having a first portion arranged bearing against the central shaft and at least one second portion arranged bearing against the satellite carrier. The tube may include a substantially cylindrical skirt, wherein at least one first tab is formed in such a way that it exerts a force having a radial component on the satellite carrier.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 16, 2010
    Inventors: Huy Van TRAN, Ludovic Perez
  • Publication number: 20100238772
    Abstract: The invention relates to a timepiece component (1) that has an aperture (7) for receiving a support element (3) and includes a clamping system (13) for exerting radial force, allowing said timepiece component to be secured to said support element. According to the invention, the clamping system (13) includes a radial clamping device (15) that has a crown (6) for exerting said radial force and a concentric, blind recess (8) spaced apart from said aperture, for allowing said crown to travel. The invention concerns the field of timepieces.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 23, 2010
    Applicant: NIVAROX-FAR S.A.
    Inventors: Marco Verardo, Thierry Conus, Jean-Philippe Thiebaud, Jean-Bernard Peters, Pierre Cusin
  • Publication number: 20100226216
    Abstract: The invention concerns a vertical type uncoupling device, in particular in an automatic watch winding mechanism that includes an oscillating mass and a gear train connecting the oscillating mass to a barrel (9), wherein said gear train includes a direction reverser device (11, 12), a reduction gear (13, 14, 15, 16) and the uncoupling device (20). The uncoupling device includes two coaxial wheels (17, 7) that can be coupled in rotation in one direction owing to respective Breguet toothings (21, 22) arranged on the opposite flanks of said wheels. The coaxial wheel (17), which is mobile in the axial direction, is secured to a sliding arbour (18), which is mounted so as to rotate and slide in fixed bearings (24, 25). A return spring (26) includes an elastic strip that abuts against one end of the sliding arbour (18) to tend to engage and keep meshed the Breguet toothings. This design reduces friction and saves space. Other applications of this type of uncoupling device in a watch movement are described.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 9, 2010
    Applicant: Montres Jaquet Droz S A
    Inventors: Raphaël COURVOISIER, Alphonse BRON
  • Publication number: 20100188941
    Abstract: The present invention aims to provide a bearing structure allowing direct adjustment between itself and an opposing bearing even after assembly and a watch equipped with the same. A bearing structure of a watch rotatably supports a forward end portion of a shaft of a wheel with respect to a base body, and includes: a bearing, a bearing support body supporting the bearing and having a male screw portion on an outer peripheral surface concentric with the shaft of the wheel, and an adjustment nut equipped with a female screw portion threadedly engaged with the male screw portion of the bearing support body, regulated in its displacement in the extending directions of the shaft of the wheel by the base body, and adapted to adjust the position of the bearing with respect to the extending direction of the shaft via the bearing support body.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 29, 2010
    Inventor: Hisashi Fujieda
  • Publication number: 20100054092
    Abstract: The process comprises the following steps: a) a first element (3) or a plurality of said first elements (3) is/are machined in a first silicon wafer (1) keeping said elements (3) joined together via material bridges (5); b) step a) is repeated with a second silicon wafer (2) in order to machine a second element (4), differing in shape from that of the first element (3), or a plurality of said second elements (4); c) the first and second elements (3, 4) or the first and second wafers (1, 2) are applied, face to face, with the aid of positioning means (6, 7); d) the assembly formed in step c) undergoes oxidation; and e) the parts (10) are separated form the wafers (1, 2). Micromechanical timepiece parts obtained according to the process.
    Type: Application
    Filed: November 1, 2007
    Publication date: March 4, 2010
    Applicant: ETA SA MANUFACTURE HORLOGERE SUISSE
    Inventors: Philippe Marmy, Jean-Luc Helfer, Thierry Conus
  • Patent number: 7618183
    Abstract: The invention proposes an analogue display member (10) fitted to a timepiece, of the type including a main body in which an arbor hole is arranged, characterized in that the main body is made of silicon based crystalline material. The invention also proposes a timepiece provided with such a display member (10). The invention also proposes a method of fabricating analogue display members (10) to be fitted to timepieces, each analogue display member (10) including a main body, characterized in that it includes at least one step of micro-machining a wafer of silicon based crystalline material to form at least one main body in said material.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: November 17, 2009
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Pierre-André Meister, André Zanetta, Emmanuel Fleury, Fabien Blondeau
  • Patent number: 7575369
    Abstract: Assembly element (18) made in a plate of brittle material, including an aperture (32) provided for the axial insertion of an arbour (26). The inner wall (33) of the aperture (32) includes elastic structures (34), which are etched into the plate and which each include at least one support surface (36) for gripping the arbour (26) radially in order to secure the assembly element (18) relative to the arbour (26). The assembly element (18) includes a first series (S1) of elastic structures (34) etched in a top layer (39) of the plate and a second series (S2) of elastic structures (34) etched in a bottom layer (41) of the plate. A timepiece may be fitted with this assembly element.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 18, 2009
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Roland Bitterli, Wilfried Noell, Fabien Blondeau, Lionel Paratte, Toralf Scharf, Pierre-André Meister, André Zanetta
  • Patent number: 7572050
    Abstract: Assembly element made in a plate of brittle material, such as silicon, in particular for a timepiece, including an aperture provided for the axial insertion of an arbour, the inner wall of the aperture including elastic structures which are etched into the plate and which each include at least one support surface for gripping the arbour radially in order to secure the assembly element relative to the arbour. Each elastic structure is formed by a fork which is connected to the inner wall of the aperture by a bridge of material and which includes two branches extending, on either side of the bridge of material, generally towards the arbour. Each branch includes a support surface in proximity to the free end thereof. The invention also proposes a timepiece fitted with an assembly element of this type.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 11, 2009
    Assignee: ETA SA Manufacture Horlogére Suisse
    Inventors: Roland Bitterli, Wilfried Noell, Fabien Blondeau, Lionel Paratte, Toralf Scharf, Pierre-André Meister, André Zanetta
  • Patent number: 7438465
    Abstract: Assembly element (18) made in a plate of brittle material, including an aperture (32) provided for the axial insertion of an arbour (26), the inner wall (33) of the aperture (32) including elastic structures (34), which are etched into the plate to grip the arbour (26) radially. Each elastic structure (34) includes a first rectilinear elastic strip (L1) which extends along a tangential direction relative to the arbour (26). According to the invention, each elastic structure (34) is formed by a radial stack of several parallel elastic strips.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: October 21, 2008
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Roland Bitterli, Wilfried Noell, Fabien Blondeau, Lionel Paratte, Toralf Scharf, Pierre-André Meister, André Zanetta
  • Patent number: 7344303
    Abstract: The housing (6) of the bearing block (1), locks the peripheral ring (11) of a spring (10) with axial and radial deformation further comprising a substantially annular rigid central support (13) which cooperates with a cap (23), fitted by means of lugs (25) to the outside of the central support (13), to hold the pierced stone (4) and the endstone (5). The resilient part (12) of the spring (10) is for example formed of bent arms.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: March 18, 2008
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Thierry Conus, Jean-Luc Helfer
  • Patent number: 7170827
    Abstract: The invention relates to a timepiece which has a resin bearing section. Moreover, the invention relates to a wheel train apparatus which has a resin bearing section. The invention is constituted by the timepiece provided with a gear wheel and supporting members which support the gear wheel, the supporting members being formed from a filler containing resin. Alternatively the invention is constituted by the wheel train apparatus provided with a gear wheel and supporting members which support the gear wheel, the supporting members being formed from a filler containing resin.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 30, 2007
    Assignees: Kitagawa Industries Co., Ltd, Seiko Instruments, Inc.
    Inventors: Morinobu Endo, Tetsuo Uchiyama, Akio Yamaguchi, Yasuo Kondo, Hiroshi Aoyama, Koichiro Jujo, Kazutoshi Takeda, Masato Takenaka, Shigeo Suzuki, Takeshi Tokoro
  • Patent number: 7167420
    Abstract: The invention relates to a timepiece which has a resin substrate, rotors, and wheel trains, and relates to a wheel train apparatus which has a resin substrate, bearing members, gear wheel, and the like. The invention is constituted by a timepiece comprising; a gear wheel, and a substrate which supports a shaft of a rotor and/or a shaft of the gear wheel, the substrate being formed from a filled resin. Alternatively the invention is constituted by a wheel train apparatus comprising: a gear wheel; a substrate which supports one shaft section of the gear wheel, and a bridge which rotatably supports an other shaft section of the gear wheel, the substrate and the bridge being formed from a filled resin.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 23, 2007
    Assignees: Kitagawa Industries Co., Ltd, Seiko Instruments Inc.
    Inventors: Morinobu Endo, Tetsuo Uchiyama, Akio Yamaguchi, Yasuo Kondo, Hiroshi Aoyama, Koichiro Jujo, Kazutoshi Takeda, Masato Takenaka, Shigeo Suzuki, Takeshi Tokoro
  • Patent number: 7085199
    Abstract: Watch movement comprising a housing (26, 28, 30, 32, 34) and a gear train, formed from a series of spindles (36, 38, 40, 42), pivotably mounted on the housing, of which a first of said spindles (42) is provided with a shank (42a), for fixing a first hand (16) and a second of said spindles (50) is provided with a cylinder (50b), arranged co-axially to said shank, for fixing a second hand (20). According to the invention, the second spindle (50) is rotationally mounted on said housing (34) by means of a ball bearing (54).
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: August 1, 2006
    Assignee: Chronoswiss Uhren GmbH
    Inventor: Gerd-Rüdiger Lang
  • Patent number: 6698918
    Abstract: The method consists in using a setting device for jewel holes or prismatic jewels including at least a reference plane, on which the jewel to be fixed is wedged, said plane including at least spatial positioning means for said jewel, such as studs or cavities. Once the jewel is set in place, it is secured to its housing by applying a laser beam to its edge, possibly with the addition of a fusible material.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: March 2, 2004
    Assignee: Eta SA Fabriques d'Ebauches
    Inventor: Friedrich Durand
  • Patent number: 6520108
    Abstract: An indicating instrument includes a dial plate, a casing disposed behind the dial plate, a drive control section disposed in the casing and a rotary shaft driven by the drive control section. The rotary shaft is comprised of a pair of thin shafts respectively supported by a pair of bearings and a thick shaft connecting the pair of thin shafts. Each thin shaft has such a length and an outside diameter that the ratio of the length to the outside diameter provides a sufficient bending strength. Therefore, the rotary shaft rotates smoothly and a pointer carried by the shaft indicates accurate values of a vehicle operating condition.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: February 18, 2003
    Assignee: Denso Corporation
    Inventor: Takashi Komura
  • Patent number: 6183125
    Abstract: In an electronic watch including a so-called automatic winding dynamo, structures of parts themselves and layout of the parts are improved to achieve a reduction in thickness of the electronic watch. Bearing portions for a rotational shaft (211) of a dynamo rotor (21) are made up of hole jewels (212, 214) and ring-shaped caps (213, 215). The cap (215) covers, from the outer side, one end surface (216) of the hole jewel (214) which locates on the side facing a dynamo rotor (21), and defines a lubricant holding annular slot (G3) between the cap and an outer circumferential surface of the rotational shaft (211). Accordingly, even with the dynamo rotor (21) rotating at a high speed, a lubricant is prevented from scattering to the surroundings from the annular slot (G3). Spacings between adjacent parts can be narrowed and the thickness of the electronic watch can be reduced.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: February 6, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuo Hara, Joji Kitahara
  • Patent number: 6082001
    Abstract: A clockwork wheel (1) including a plate (3) provided with a first series of peripheral teeth (4) and a second series of teeth (5) arranged at right angles to the plate is manufactured in a strip of steel suitable for stamping and by means of a progressive forging die. In order to form the second series of teeth (5), a die perforated with a plurality of openings arranged in a circle is applied onto one face of the strip, and the flat face of a cylinder is pressed onto the other face of the strip to cause the steel to flow inside the openings of the die. The clockwork wheel is used as a setting wheel in a time or date setting mechanism.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: July 4, 2000
    Assignee: Eta SA Fabriques d'Ebauches
    Inventor: Marco Bettelini
  • Patent number: 6012838
    Abstract: In an electronic watch including a so-called automatic winding dynamo, structures of parts themselves and layout of the parts are improved to achieve a reduction in thickness of the electronic watch. Bearing portions for a rotational shaft (211) of a dynamo rotor (21) are made up of hole jewels (212, 214) and ring-shaped caps (213, 215). The cap (215) covers, from the outer side, one end surface (216) of the hole jewel (214) which locates on the side facing a dynamo rotor (21), and defines a lubricant holding annular slot (G3) between the cap and an outer circumferential surface of the rotational shaft (211). Accordingly, even with the dynamo rotor (21) rotating at a high speed, a lubricant is prevented from scattering to the surroundings from the annular slot (G3). Spacings between adjacent parts can be narrowed and the thickness of the electronic watch can be reduced.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: January 11, 2000
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuo Hara, Joji Kitahara
  • Patent number: 5079754
    Abstract: A rotational transmission reducer having plane waving gear mechanism comprises at least a reducer unit of an input member, an output member, and a plane flexible member which lays between the input member and the output member. The reducer unit may be coaxially piled to be a multistage reducer. A typical example is a transmission of a clock or a watch, which can simplify a conventional mechanism and lower the manufacturing cost. The reducer unit functions by some salient portions on the input member pushing the flexible member, to engage a part of a ring gear furnished on the flexible member with another ring gear furnished on the output member. The output member is rotated by differential pitches of aforesaid two ring gears. For a clock or watch transmission, the ring gear on the output member is an independent member joined frictionally with a substance of the output member so that they can be slid relatively for time adjustment.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: January 7, 1992
    Inventor: Kuo C. Huang
  • Patent number: 4908807
    Abstract: A mechanical interval timer and method of manufacturing same including an adjustable bearing permitting adjustment of the space between the escape wheel and the escape lever disc to obtain an accurate timing rate through precalibration of one sample made from a selected group of parts for the timer.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: March 13, 1990
    Assignee: Sunbeam Corporation
    Inventor: Christian M. Jauch
  • Patent number: 4805161
    Abstract: In a drive gear structure for an electronically controller watch which includes a stepping motor having a drive pinion in engagement with an intermediate gear disc and a center gear in engagement with an intermediate gear pinion associated with the intermediate gear disc, a reducing gear structure is provided which has a reducing gear disc which is also in engagement with the same center gear disc and a reducing gear pinion which is in engagement with the minute gear of the watch. The single center gear disc is somewhat larger in width than the corresponding second gear disc of a corresponding watch with second hand indicator but not as wide as a second gear disc and second gear pinion used for a corresponding watch with second hand. The intermediate gear pinion and the reducing gear disc which are both in engagement with the second gear disc have the same pitch.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: February 14, 1989
    Assignee: Pforzheimer Uhrenwerke Porta GmbH
    Inventor: Wolfgang Kroner
  • Patent number: 4652142
    Abstract: A watch drive has an electric stepping motor and other drive elements supported between opposite drive plates. A tubular center bearing is mounted on one of the drive plates and carries a watch hand shaft to which motion is transmitted from the stepping motor by way of an intermediate gear which is mounted on an intermediate gear shaft supported in a bearing projection extending from a mounting collar of the tubular center bearing. The bearing projection is disposed adjacent a cut-out area of the drive plate which cut-out area is sufficiently large to permit insertion of the small drive elements between the drive plates during assembly of the watch drive and to provide for the small size of the watch drive.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: March 24, 1987
    Assignee: Pforzheimer Uhren-Rohwerke Porta GmbH
    Inventor: Gerhard Rupprecht
  • Patent number: 4382695
    Abstract: A thin movement for a stepping motor watch employs a single frame member a peripheral front frame portion surrounding and connected to a back frame portion and stepping motor stator, affixed to the frame member, pins fixed in the back frame portion and stepping motor stator, gear members including the stepping motor rotor and gear train driving the watch hands rotatably mounted on said pins, a dial for the timepiece supported on the front frame portion, the dial serving to control axial movement of the gear members on the pins. Only two layers of gear members are required in the space between the back frame portion and the dial.
    Type: Grant
    Filed: June 19, 1981
    Date of Patent: May 10, 1983
    Assignee: Timex Corporation
    Inventors: Joseph Rinaldi, Paul Wuthrich
  • Patent number: 4351586
    Abstract: A watch pierced bearing jewel forms the end of a sheathed optical fiber termination. The jewel is located on axis of a ferrule. The fiber is threaded through the jewel aperture and cemented in position. The jewel and ferrule may be held concentric in a resilient molded jig during assembly of the fiber thereto.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: September 28, 1982
    Assignee: International Standard Electric Corporation
    Inventors: Michael J. Phillips, Aubrey M. Crick