Cannon Pinion Details Patents (Class 368/323)
  • Publication number: 20130279307
    Abstract: The invention relates to a method (1) of manufacturing a silicon-metal composite micromechanical component (51) combining DRIE and LIGA processes. The invention also relates to a micromechanical component (51) including a layer wherein one part (53) is made of silicon and another part (41) of metal so as to form a composite micromechanical component (51). The invention concerns the field of timepiece movements.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 24, 2013
    Inventors: Jean-Charles Fiaccabrino, Marco Verardo, Thierry Conus, Jean-Philippe Thiebaud, Jean-Bernard Peters
  • Patent number: 8210740
    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, enabling 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, to allow a travel for the crown. Moreover, the clamping system (13) further includes a device allowing a travel (17) that has a second, concentric, blind recess (10), spaced apart from said first blind recess (8), and located on the opposite surface to said first recess, to allow said crown a greater degree of freedom relative to said support element. The invention concerns the field of timepieces.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 3, 2012
    Assignee: Nivarox-FAR S.A.
    Inventors: Marco Verardo, Thierry Conus, Jean-Philippe Thiebaud, Jean-Bernard Peters, Pierre Cusin
  • Patent number: 8079754
    Abstract: The center wheel and pinion has a center shaft provided with a center pinion that is formed from a crystalline metal, and a center tooth part composed of a metallic glass alloy that is integrally formed with the center shaft. The center shaft has a center pinion and other external peripheral regions that are formed by cutting the external periphery of a cylindrical member provided with a support hole. The external periphery of the coupling part to which the center tooth part is coupled is formed in a quadrangular shape. The center tooth part composed of a metallic glass alloy has a tooth continuously formed at the disc-shaped external periphery, and a center position that is integrally formed surrounding the entire external periphery of the quadrangular-shaped coupling part of the center shaft.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: December 20, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiro Tsuchiya, Satoru Masai
  • Patent number: 7854546
    Abstract: The center wheel and pinion has a center shaft provided with a center pinion that is formed from a crystalline metal, and a center tooth part composed of a metallic glass alloy that is integrally formed with the center shaft. The center shaft has a center pinion and other external peripheral regions that are formed by cutting the external periphery of a cylindrical member provided with a support hole. The external periphery of the coupling part to which the center tooth part is coupled is formed in a quadrangular shape. The center tooth part composed of a metallic glass alloy has a tooth continuously formed at the disc-shaped external periphery, and a center position that is integrally formed surrounding the entire external periphery of the quadrangular-shaped coupling part of the center shaft.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: December 21, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiro Tsuchiya, Satoru Masai
  • Patent number: 7321528
    Abstract: The invention relates to a watch movement comprising an annular casing (10), having an external diameter D, which is provided with a central round opening (48) that is defined by an internal diameter d. According to the invention, the gear train (34) comprises a mobile (36) consisting of a minute wheel (36a) and a pinion (36b), a cannon pinion (38), which is driven by the minute wheel (36a) and intended to support a minute hand (40), and an hour wheel (42) which is driven by the pinion (36b) and intended to support an hour hand (44). The cannon pinion (38) and the hour casing (10) and are provided with a central opening that is more or less equal to d. The minute wheel (36a) is provided with a diameter that is slightly smaller than (D?d)/2.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: January 22, 2008
    Inventors: Jean-Marc Wiederrecht, Saskia Bouvier
  • Patent number: 6687192
    Abstract: The invention concerns the structure of a timepiece movement, more particularly the structure of the hour wheel (1), the inside of whose pipe (4) includes an annular bulge (6) co-operating with an annular groove (22) arranged on the outer wall of the pipe (21) of the cannon-pinion (7). Thus, the hour wheel is snap-fitted onto the movement, without it being necessary to provide an additional part for this purpose, and its toothed wheel (3) cannot therefore be released from the motion-work pinion (19) during transport of the movement.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: February 3, 2004
    Assignee: Eta Sa Fabriques d'Ebauches
    Inventors: Marco Bettelini, Theodor Schoenenberger
  • Publication number: 20020141292
    Abstract: The invention concerns the structure of a timepiece movement, more particularly the structure of the hour wheel (1), the inside of whose pipe (4) includes an annular bulge (6) co-operating with an annular groove (22) arranged on the outer wall of the pipe (21) of the cannon-pinion (7). Thus, the hour wheel is snap-fitted onto the movement, without it being necessary to provide an additional part for this purpose, and its toothed wheel (3) cannot therefore be released from the motion-work pinion (19) during transport of the movement.
    Type: Application
    Filed: February 1, 2002
    Publication date: October 3, 2002
    Applicant: ETA SA FABRIQUES D'EBAUCHES
    Inventors: Marco Bettelini, Theodor Schoenenberger
  • 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: 5506820
    Abstract: A gear train structure of an electronic watch which is high in hand indication accuracy and which eliminates the occurrence of stopping of the watch due to dust, nap or the like. The electronic watch gear train structure includes a second wheel 13 having a minute hand attached thereto, and a braking wheel 15 for applying to the second wheel 13 a rotary torque of a reverse direction to a direction of rotation of the second wheel 13. The braking Wheel 15 includes a gear adapted to mesh with the second wheel 13, a spring 21 having one end thereof fastened to a shaft of the gear, and a balance spring frame 23 having a circumferential wall surface for contacting with the free end side of the spring 21.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: April 9, 1996
    Assignee: Seiko Epson Corporation
    Inventors: Toyoshige Honzawa, Kuniharu Natori, Nobuhiro Koike
  • Patent number: 5253231
    Abstract: This invention concerns a braking arrangement for a gear wheel. The purpose of the invention is to brake the last wheel in a gear train in order to avoid the latter rotating through unequal angular steps. Such purpose is achieved with the help of an element forming a brake (1) fixed onto a first wheel set (2) of a gear train in a manner to be driven in rotation by the latter, such element (1) exhibiting a friction surface (39) at its periphery brought to bear elastically onto a second wheel set (6) meshing with the first so as to brake such second wheel set (6). The invention is more especially applied to horological and chronograph gearing.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: October 12, 1993
    Assignee: Eta SA Fabriques d'Ebauches
    Inventor: Cyril Vuilleumier
  • 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: 4893292
    Abstract: The movement comprises a bottom-plate (1), a gear-train bridge (2), a center gear (14), an hour wheel (24) and a cell (25). The center gear (14) has a shaft (15) and a wheel (19) frictionally mounted on the shaft (15). Within the thickness of the movement, the frictionally mounted wheel (19) is adjacent the cell (25) to one side and the hours wheel (24) to the other side. The movement is so designed that the center gear (14) and the hours wheel (24) may be fitted into place at the very end of the assembly process.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: January 9, 1990
    Assignee: ETA SA Fabriques d'Ebauches
    Inventor: Willy Cleusix
  • Patent number: 4860270
    Abstract: In a drive coupling for the coupling of an adjustment shaft with the ratchet adjusting knob of a wristwatch, a slide bushing which is axially movably disposed on the adjustment shaft has a collar with sections circumferentially punched therefrom and bent axially out of the collar plane so as to form an annular cam and detent structure.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: August 22, 1989
    Assignee: Pforzheimer Uhren-Rohwerke PORTA GmbH
    Inventor: Wolfgang Kroener
  • 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: 4785434
    Abstract: Synthetic resin shaft and gear portions are molded to be capable of slipping each other. During a normal timepiece operation, the shaft and gear portions are integrally rotated. During a hand setting operation, the shaft portion is rotated with slip on the gear portion. In this slip structure of a timepiece, at least one of the shaft and gear portions is formed of an oil-containing resin material.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: November 15, 1988
    Assignee: Casio Computer Co., Ltd.
    Inventors: Masaru Shoji, Wataru Yamada, Masayoshi Tanazawa, Mitsunobu Yatabe, Kenichi Nakamura, Satoshi Fujio, Masaki Yokohama, Takashi Watanabe, Kanenori Ochiai
  • Patent number: 4753537
    Abstract: A digital clock construction, a pinion gear therefor and methods of making the same are provided, the clock construction comprising a frame, first and second time indicating drums each being rotatably carried by the frame, and a pinion gear rotatably carried by the frame and having driving gear teeth disposed in meshing relation with an annular internal gear of the second drum whereby rotation of the pinion gear causes rotation of the second drum, the pinion gear having locking teeth extending from certain of the driving teeth thereof, the first drum having an annular internal locking surface that is adapted to slide against a pair of locking teeth to hold the pinion gear from rotation thereof while the first drum is being rotated through certain timed increments of movement thereof, the first drum having a pair of kicker teeth for meshing with the driving teeth of the pinion gear to rotate the pinion gear when the first drum is being rotated through a particular one of the timed increments of movement thereo
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: June 28, 1988
    Assignee: Robertshaw Controls Company
    Inventor: Alfred A. Frankenberg
  • Patent number: 4711584
    Abstract: A movement of an electronic watch of analog display type is disclosed, which comprises a base plate made of a synthetic resin, a bearing plate made of a synthetic resin, and facing and spaced apart at a predetermined distance by a spacer from the baseplate and a step motor mounted on the baseplate, and including a rotor, a stator, and a coil. The rotation of the rotor of the motor is transmitted to hands, e.g., minute hand, through a gear train consisting of a plurality of gears, including those journaled between the baseplate and bearing plate. The gear train is made of a synthetic resin.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: December 8, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Masayoshi Tanazawa, Masaru Shoji, Wataru Yamada
  • Patent number: 4653932
    Abstract: A digital clock construction, a pinion gear therefor and methods of making the same are provided, the clock construction comprising a frame, first and second time indicating drums each being rotatably carried by the frame, and a pinion gear rotatably carried by the frame and having driving gear teeth disposed in meshing relation with an annular internal gear of the second drum whereby rotation of the pinion gear causes rotation of the second drum, the pinion gear having locking teeth extending from certain of the driving teeth thereof, the first drum having an annular internal locking surface that is adapted to slide against a pair of locking teeth to hold the pinion gear from rotation thereof while the first drum is being rotated through certain timed increments of movement thereof, the first drum having a pair of kicker teeth for meshing with the driving teeth of the pinion gear to rotate the pinion gear when the first drum is being rotated through a particular one of the timed increments of movement thereo
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: March 31, 1987
    Assignee: Robertshaw Controls Company
    Inventor: Alfred A. Frankenberg
  • Patent number: 4308610
    Abstract: An electronic or mechanical timepiece of the analog display type provided with a gear train for driving timekeeping hands. The gear train includes a center pipe affixed to an intermediate bridge secured to the base plate, a free cannon pinion being rotatably supported on the pipe and having a center wheel mounted thereon which is disposed in the space between the bridge and a section of the base plate, thereby providing a dependable support for the cannon pinion without the need for enlarging the diameter of the center wheel or of the drive pinion intermeshing therewith.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: December 29, 1981
    Assignee: Bulova Watch Company, Inc.
    Inventor: Erich Walker