Classifications

• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B21/00—Indicating the time by acoustic means
  • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
  • G04B21/14—Winding-up the striking mechanism by the clockwork; winding up the clockwork by the striking mechanism
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B37/00—Cases
  • G04B37/08—Hermetic sealing of openings, joints, passages or slits
  • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B37/00—Cases
  • G04B37/08—Hermetic sealing of openings, joints, passages or slits
  • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
  • G04B37/106—Hermetic sealing of openings, joints, passages or slits of winding stems of push buttons

Definitions

• the present invention relates to the field of watchmaking. More particularly, it relates to a control device of the type intended to actuate, from the outside of its box, a mechanism of a watch movement.
• Some mechanisms are generally actuated by a rotational movement of a part provided with a toothed sector, whose pivoting is generated directly by the circular sliding of a bolt in the middle of the box of the watch.
• One of the aims of the invention is to make it possible to actuate a mechanism of this type by the translation of a bolt in a curve close to the straight line and not by a circular sliding.
• the trajectory of this translation has an infinite radius of curvature, in the case of a rectangular box, but may also have a radius of curvature typically greater than twice the width of the box in the case of a barrel shape.
• the invention relates to a control device of a watch mechanism comprising a part movable in rotation about an axis A.
• the device is intended to be associated with a watch case and comprises a bolt operable from the outside of the box.
• the bolt is movably mounted in translation at the periphery of the box and the device comprises, housed in the watch case:
• a plate mounted to rotate about an axis D, inside the box, and kinematically connected to said bolt, an arm articulated about an axis B and a first end of which is disposed on the plate, free in rotation about an axis C not coincident with the axis D, and whose other end is fixed on the part to actuate the mechanism.
• the targette occupies an extreme first position when it is at rest.
• it cooperates with an elastic member to bring it and maintain it in this first position.
• the elastic member may be a spring cooperating with a rod removably attached to the bolt.
• a second object of the invention is to provide a bolt control device which is sealed.
• the rod slides in a housing formed by an insert on the watch case.
• This insert consists of a strip which comprises, in the vicinity of one of its ends, a housing through which the rod and for receiving a seal.
• FIGS. 1a and 1b are top views of mechanism in its first and second extreme positions, FIG. 1a including an enlarged view of a particular element, and
• FIG. 2 is a bottom view of the watch case incorporating this device.
• a casing ring 10 of barrel shape intended to take place in a watch case 11 with a middle part 12 of the same shape.
• the casing ring 10 is provided with a housing 13 for receiving a watch movement, not shown, and its outer contour matches the shape of the inside of the box.
• the movement comprises a minute repetition mechanism, the ringing of which is triggered by means of a toothed sector rotating in rotation about an axis A.
• the drawing are represented only the projections of the various axes of the mechanism, the latter are perpendicular to the plane defined by the box 11.
• the control device according to the invention takes place in a space 14 formed in a corner of the casing ring 10 and extends on the adjacent side 16 to this corner, which is in a space intended to be between the two Strands of the bracelet.
• a housing is disposed longitudinally on the outer edge of the side 16. It is, for example, made by means of a part 18 attached and welded to the middle part 12, over the entire contact area between these two elements.
• This piece 18 consists of a lamella whose ends 19, 20 are bent outwards and join the edge of the box 11.
• the end 19 is provided with a hole, not visible in the drawing and an annular housing 22, the utility will appear later.
• a rod 24 is slidably mounted in the housing and passes through the hole of the end 19.
• This rod 24 has two parts: one 24a is located on the side of the space 14 and the other, 24b, is a greater diameter. Both parts are of a similar length and form, at their junction, a stop positioned substantially in the middle of the rod. The diameter of the portion 24a and that of the openings of the piece 18 are adjusted.
• the portion 24b of the rod is removably attached to a bolt 25 for protruding from the watch case.
• the latter has an opening to allow the bolt 25 to move around its periphery.
• a pallet 26, disposed in the space 14, is attached to the end of the portion 24a of the rod. The shape of the pallet 26 will be described in detail below.
• a return spring 27 is mounted on the portion 24a of the rod. It is supported, on one side, on the abutment formed at the junction with the portion 24b and, on the other, on the end 19.
• the rod 24 translates into the housing, parallel to the edge of the casing ring 10, compressing the spring 27 and returns to its rest position under the effect of the spring 27 which relaxes when releasing the bolt.
• the space 14 extends into an opening 28 located on the dial side, inside which there is a plate 30, pivotally mounted about an axis D, on the casing ring 10. The thicknesses of the bottom of the casing 28 and the plate 30 are adjusted so that the pallet 26 is located in a plane greater than that of the plate 30.
• the plate 30 is provided with a pin 32 disposed at its periphery, in the plane of the pallet 26
• the device further comprises an articulated arm 34 in an elbow B axis.
• a first end of the arm 34 is disposed on said plate, free to rotate about an axis C, not coincident with the axis D.
• the axis C is located at the periphery of the plate 30.
• the second end of the arm 34 is fixed on the toothed sector of the minute repeater mechanism to actuate it.
• the articulated arm 34 and the plate 30 are sized so that the toothed sector of the minute repeater mechanism pivots about 25 ° about the axis A.
• the portion of the arm 34 mounted on the plate measures 7.2 mm and that of the toothed sector operating the minute repeater mechanism, 7.8 mm.
• the plate 30 measures 9.4mm in diameter.
• the axis C is substantially diametrically opposed to the pin 32.
• the length of the first portion of the arm 34 above being less than the diameter of the plate 30, a notch 40 is formed at the periphery of the latter to allow the second part of the arm, which is in the thickness of the plate 30, not to collide with the latter.
• the rod 24 is disposed in the housing formed by the part 18. Then, the casing ring 10 and the movement are installed in the box 11 and the bolt
• the box is closed sealingly, as known to those skilled in the art, on one side by the ice and, on the other side by the bottom of the box 11. Similarly, the winding stem is sealed.
• a seal 42 visible in Figure 2 is conventionally arranged in a groove formed on the inner periphery of the box 11. Due to the presence of this seal 42, the only opening no still sealed between the movement and the outside of the watch is located at the rod 24, more precisely at the place where it passes through the openings of the piece 18.
• the shape of the piece 18 described above allows to introduce into the housing 22, an annular seal 44, through which passes the portion 24a of the rod.
• the latter can slide freely, the seal 44 being held in position between the two walls of the housing 22.
• the pallet 26 presses the pin 32 which slides on its biased side causing the rotation of the plate 30 in the counterclockwise direction.
• B-axis moves following the perimeter of the tray, C moves to the position shown in Figure 1b and
• the device is then in its second extreme position.
• the rod 24 and the bolt 25 automatically resume their rest position under the effect of the spring 27.
• the arm 34 and the plate 30 are returned to their first rest position at the same time as the mechanism of repetition which the barrel of ringer, too, returns to the rest.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Electric Clocks (AREA)
• Selective Calling Equipment (AREA)
• Electromechanical Clocks (AREA)
• Nuclear Medicine (AREA)
• Electrophonic Musical Instruments (AREA)
• Numerical Control (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=36061449

Family Applications (1)

Country Status (9)

Families Citing this family (7)

Family Cites Families (9)

• 2004
  • 2004-10-08 CH CH01661/04A patent/CH699146B1/fr not_active IP Right Cessation
• 2005
  • 2005-09-27 JP JP2007535138A patent/JP2008516212A/ja active Pending
  • 2005-09-27 US US11/576,176 patent/US7517138B2/en not_active Expired - Fee Related
  • 2005-09-27 KR KR1020077007988A patent/KR20070093044A/ko not_active Withdrawn
  • 2005-09-27 DE DE602005013548T patent/DE602005013548D1/de active Active
  • 2005-09-27 EP EP05792068A patent/EP1797482B1/de not_active Not-in-force
  • 2005-09-27 AT AT05792068T patent/ATE426840T1/de not_active IP Right Cessation
  • 2005-09-27 WO PCT/EP2005/054840 patent/WO2006037739A2/fr not_active Ceased
  • 2005-09-27 CN CNA2005800342671A patent/CN101036088A/zh active Pending

Non-Patent Citations (1)

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