EP1960846A2 - Clockwork movement - Google Patents
Clockwork movementInfo
- Publication number
- EP1960846A2 EP1960846A2 EP06819640A EP06819640A EP1960846A2 EP 1960846 A2 EP1960846 A2 EP 1960846A2 EP 06819640 A EP06819640 A EP 06819640A EP 06819640 A EP06819640 A EP 06819640A EP 1960846 A2 EP1960846 A2 EP 1960846A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- movement
- control member
- parts
- column wheel
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000009471 action Effects 0.000 claims abstract description 11
- 230000004044 response Effects 0.000 claims abstract description 7
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000000470 constituent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/028—Wheels; Pinions; Spindles; Pivots wheels in which the teeth are conic, contrate, etc; also column wheels construction
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
- G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
- G04F7/08—Watches or clocks with stop devices, e.g. chronograph
- G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
- G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
- G04F7/08—Watches or clocks with stop devices, e.g. chronograph
- G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
- G04F7/0847—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with column wheel
Definitions
- the present invention relates to a watch movement comprising a frame defining a reference plane, a movable control lever on the frame and intended to be moved in response to an action of a user to act on a control member some movement.
- the latter is rotatably mounted on the frame about an axis X perpendicular to the reference plane for controlling a first and a second mechanism providing at least one function of the movement.
- the control member comprises first, second and third parts respectively arranged at first, second and third levels, in the direction of the axis X, to cooperate with the control lever and to control the mechanisms, these three parts being secured in rotation.
- a preferred embodiment of the invention relates to such a movement in which the movement control member is a column wheel, the function of the movement controlled by the column wheel can be a chronograph function, indicative .
- patent application EP 1 394 637 in the name of Frédéric Piguet SA, describes a watch movement equipped with an alarm mechanism in which the operating state of the alarm clock is controlled by a conventional column wheel .
- This column wheel comprises drive means implemented in the form of a ratchet, and control means implemented in the form of a ring in which are cut columns.
- the column wheel is engaged, by its central hole, on a hollow pin integral with the plate in which is screwed a screw in range.
- the column wheel is free to rotate relative to the post while the head of the scope screw ensures its axial retention.
- the column wheel when it controls the movement of certain moving parts of the movement, the column wheel must turn on itself, usually overcoming the force of one or more springs acting on these movable elements.
- its angular positioning is typically provided by a jumper, significant stiffness, which it must also overcome the force before being able to turn on itself a step.
- the main aims of the present invention are to improve the operating accuracy, the reliability as well as the resistance in time and use of the movements of the prior art, while offering the manufacturer of the movement a great flexibility. in the arrangement of the various mechanisms necessary for the functioning of the movement.
- the present invention relates to a watch movement of the type mentioned above, characterized in that the second and third parts are arranged on either side of at least one element of the frame.
- the various mechanisms controlled from the rotary control member can be distributed in the movement by the manufacturer according to his own needs, to optimize the size of the movement, without harming the quality of the last.
- bearing will have to be interpreted in a functional sense, that is to say as capable of being implemented in any form adapted to present bearing surfaces. respectively substantially cylindrical and flat, capable of ensuring the radial and / or axial guidance of a rotating member.
- the two bearings are arranged on either side of the assembly formed by the first, second and third parts, which further improves the stability of the shaft relative to the frame of the movement. More specifically, this preferred implementation makes it possible to eliminate the cantilever situation in which the first and second parts are located in certain configurations of the prior art.
- the first and second parts respectively providing functions of drive means and control means, are preferably integral with the rotating shaft.
- the shaft of the rotary control member has a square on which is engaged a sleeve carrying the third portion for controlling the second mechanism of movement.
- FIG. 1a shows a perspective view of a control member whose structure of the pivoting means is similar to known structures of the prior art
- FIG. 1b shows a cross-sectional view of the control member of Figure 1a when it is placed on a frame member of a watch movement
- FIG. 2 shows a partial sectional view of a control member of the same type as that of Figures 1a and 1b, according to a first embodiment of the present invention
- FIG. 3 shows a top view of a detail of the control member of Figure 2 having the function of additional control means in a watch movement chronograph type
- FIG. 4 shows a partial sectional view, similar to that of Figure 2, a control member according to a second embodiment of the present invention.
- Figures 1a and 1b show a particular control member, namely a column wheel 1 having a structure of a type known in the prior art, respectively in an elevational view and in a sectional view.
- This column wheel is in two parts, a ratchet 2 and a disk 3 carrying columns 4, made integral with one another by a conventional method of riveting or driving, for example.
- column wheels formed in one piece, that is to say in the form of a toothed wheel provided with columns perpendicular to this wheel.
- the ratchet 2 is made here in the form of a ring comprising a central hole 5, cylindrical, and having a barrel 6 on one of its faces.
- the ratchet also comprises a cylindrical recess 7 coaxial with the hole 5 formed in the other face of the ring and of greater diameter than the hole.
- the disk 3 carrying the columns also has a central hole 8 through which it is engaged on the barrel 6 of the ratchet 2.
- the column wheel 1 is mounted on a post 10, cylindrical and hollow, itself driven or riveted in a frame member of a watch movement.
- FIG. 1b shows the positioning of the post 10 on a chronograph bridge 11 mounted integral with the plate 12 of the movement.
- a barrel portion 13 housed in a core 15 of the plate.
- the pin 10 has a radial abutment 16 to ensure its axial positioning with respect to the chronograph bridge 11 and, also defining a bearing surface for the barrel 6 of the column wheel when it is in place.
- a screw 17 wide head is screwed into the post until its head 18 is disposed in abutment against the free end of the latter.
- the head 18 of the screw 17 is then engaged inside the recess 7 of the ratchet 2 and ensures the axial retention thereof on the post so that the column wheel is free to turn on itself.
- control hook 20 The end of a control hook 20 is shown between two teeth of the ratchet 2.
- the control hook is carried by a movable control lever (not shown) whose movements are caused by the actuating an external control member, generally a push-button, of a watch case in which the movement is mounted.
- an external control member generally a push-button
- each pressure exerted on this external control member causes the rotation of the column wheel by half a step.
- the angular positioning of the column wheel is typically guaranteed by the use of a jumper (not shown).
- any other adapted control member may be used alternately, without departing from the scope of the present invention.
- the columns 4 are rotated simultaneously with the rotational movements of the ratchet 2 and act on the end 21 of a rocker, such as a clutch rocker maintained in contact with the column wheel by the action of a spring (not shown).
- a rocker such as a clutch rocker maintained in contact with the column wheel by the action of a spring (not shown).
- the end 21 of the rocker is alternately between two columns 4 and on a particular column, which has the effect to make it oscillate around its axis of rotation to act on a mechanism of the movement.
- the movements of a conventional clutch rocker allow successive clutches and disengages of a chronograph driving wheel with a chronograph mobile.
- the chronograph movement comprises at least one reset hammer also arranged to present a portion disposed in abutment against the column wheel under the effect of a hammer spring.
- the angular positioning of the column wheel relative to the plate is provided by a column wheel jumper exerting a simultaneous pressing force on two successive teeth of the ratchet.
- the combined action of the springs and the control hook can affect the accuracy of positioning and rotational movements of the column wheel, especially in use. More specifically, the fact that a small portion, only, of the post 10 is integral with the frame while its largest portion, arranged cantilever, must ensure the positioning of the column wheel impairs the stability of the whole mechanism in time.
- the present invention aims to overcome these problems by providing a particular control member whose positioning is more accurate and whose rotational movements are better balanced, because it is carried by a shaft mounted on two pivots arranged at a distance from each other in the frame of the movement.
- Figure 2 shows a partial sectional view, similar to the sectional view of the view 1b, of a column wheel according to a first embodiment of the present invention.
- the column wheel is located on the bridge side of the plate of the movement. Since the column wheel according to the present invention comprises a shaft extending on either side of the plate, the end of the shaft located on the dial side of the plate can be provided with additional control means. .
- the column wheel 40 has three parts fulfilling respective functions in connection with other moving elements of the movement.
- the first part namely the ratchet 35, allows the drive of the rotating wheel in response to an action of a user.
- the second part of control namely the columns 4, retransmit the rotational movement of the wheel to columns 40 to a movement mechanism associated with a particular function, such as a chronograph mechanism.
- the column wheel 40 has a third control portion for retransmitting the rotational movement of the column wheel to an additional mechanism.
- the shaft 41 of the column wheel 40 has a square 42 on its main portion.
- the third part comprises an elongate and hollow sleeve 43 whose central hole 44 is shaped to ensure the rotational retention of the sleeve with the square of the column wheel.
- the sleeve carries a star 45 (more visible in FIG. 4), preferably made in one piece with the sleeve and disposed on the end of the shaft 41.
- the latter further comprises a central region 46 and two end portions 47 and 48 rotatably mounted in bearings integral with the frame, shown here in the form of conventional type stones.
- a first bearing 49 is housed in the column wheel bridge 34 while a second bearing 50 is housed in the chronograph bridge 11 and a third bearing 51 is housed in an additional bridge 52, secured to the plate 12 on his side dial.
- the column wheel 40 as such, is disposed between the first and second bearings 49, 50, while the sleeve 43 is disposed between the second and third bearings 50, 51.
- first bearing 49 cooperates with the first end portion 47 to ensure both radial and axial retention of the shaft 41 and, consequently, of the column wheel 40.
- the second bearing 50 acts on the column wheel 40 to maintain it in the axial direction, in particular to limit the amplitude of its movements in this direction.
- the third bearing 51 cooperates with the second end portion 48 to ensure radial retention of the shaft 41, this function being accentuated by the relatively large distance separating the third bearing 51 from the first bearing 49.
- the sleeve 43 is positioned in the axial direction, on the one hand, by the central region 46 of the shaft 41 defining a first stop for the sleeve and, on the other hand, by the third bearing 51 against which it rests in the configuration shown.
- the shaft 41 is formed in one piece with the ratchet 35 of the column wheel, while the disc 3 carrying the columns 4 is driven or riveted to the ratchet 35, so that similar to what has been described with reference to FIGS. 1a and 1b.
- FIG. 3 illustrates an example of such a mechanism, in a preferred embodiment of the movement according to the present invention.
- This figure shows a simplified elevational view of certain constituent elements of an hour counter mechanism, located on the dial side, in a movement having a chronograph function.
- the star 45 is shown with eight branches 53, that is to say as much as columns 4 shown in transparency (dashed) in Figure 3, the position of the branches being indexed to that of the columns.
- a reference 54 typically driven from the barrel, drives the wheel 56 of an hour meter carrying a pointer indicating hours timed (not visible).
- the hour counter carries a conventional reset core 57 intended to be rotated by a hammer 58 for resetting the hour counter, in response to an action by the user on an external reset member. zero.
- the reset hammer 58 is shown in its rest position, in solid line, while it is remote from the heart 57, and in its lowered position in phantom, in which it is in support against the heart. 57, the latter being thus in its position ensuring the zero maintenance of the indicator hand of hours timed.
- a blocker 59 pivotally mounted on the plate by means of a tenon 60, maintains the position of the hour counter when the hammer 58 is in its rest position and the measurement of a time n is not in progress. Conventional friction is provided to allow immobilization of the wheel 56 of the hours counter relative to the references, during stops of the chronograph function or during resetting operations.
- the hammer 58 carries a pin 61 arranged to cooperate with the blocker during resetting operations.
- the pin 61 exerts a pressure on the blocker, in known manner, to rotate it so as to release the wheel 56 from the hour counter and to allow the reset.
- the blocker is shown in phantom in FIG. 3 when the hammer 58 is lowered against the heart 57.
- the blocker 59 has a spout 62 located in the region of the star 45 to cooperate with its branches 53, during the rotational movements of the column wheel 40.
- the mechanism of the hour counter is shown in its stop position in Figure 3, the blocker 59 being in abutment against the wheel 56.
- the column wheel 40 is rotated by a half-step, the columns 4 acting on the flip-flop 21 to activate a chronograph mechanism.
- the star 45 rotates a half-step and the nozzle 62 of the blocker is pushed by a branch 53, to be removed from the wheel 56 of the hour counter. The latter can then be trained to indicate the measured hours.
- the column wheel 40 makes a new rotation of a half-step and the spout 62 is then facing a gap between two branches 53. Therefore , the blocker 59 is pushed towards the wheel 56 of the hours counter by a conventional spring (not shown) to stop rotation.
- the measurement of time can be restarted by a new action of the user on the external control member, and then stopped in the same way, an indefinite number of times.
- a reset can be performed, as previously discussed.
- the column wheel bridge 34 is provided with a driven cylindrical rod 63, engaged in a hole 64 of the bridge 52, without play, so that it is maintained at both ends.
- the diameter of the rod 63 is slightly greater at these two ends 63a and 63b.
- the column wheel 40 is pierced at its center and along its entire length, with a cylindrical hole 65 serving as a housing for the rod 63.
- the column wheel 40 is thus positioned radially by the ends 63a and 63b of the rod 63.
- the axial positioning is ensured, on the side of the bridge 34 by a shoulder 63c that includes the rod 63, and on the other side by the bridge 52.
- the column wheel 40 can rotate freely on the rod 63, with axial clearances and perfectly controlled side.
- the rod 63 and the bridge 52 form, together, two bearings ensuring the pivoting of the column wheel 40.
- the maintenance of the column wheel 40 is, here, provided by a plurality of bearings, the radial holding being in particular guaranteed by two bearings distant one of the other, the activation of the mechanisms in response to a user action is performed with great reliability.
- the ratchet is constituted by an insert on the shaft of the column wheel, means being implemented to make these two elements integral with each other in rotation.
- the sleeve one can imagine any other form adapted to control a mechanism.
- the plate has a lateral opening to allow the insertion of the control member in its location.
- the function of the movement may be other than the chronograph function.
- EP 1 394 637 it is possible to implement the present invention in a watch movement comprising an alarm function.
- the column wheel can be used as described in the aforementioned application while the third part of the column wheel according to the present invention, located on the dial side of the plate, is used to control a mechanism of indication of the operating status of the alarm clock via a system of flip-flops, for example.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06819640A EP1960846B1 (en) | 2005-11-24 | 2006-11-21 | Clockwork movement |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05111266A EP1791041A1 (en) | 2005-11-24 | 2005-11-24 | Timepiece movement |
EP06819640A EP1960846B1 (en) | 2005-11-24 | 2006-11-21 | Clockwork movement |
PCT/EP2006/068692 WO2007060150A2 (en) | 2005-11-24 | 2006-11-21 | Clockwork movement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1960846A2 true EP1960846A2 (en) | 2008-08-27 |
EP1960846B1 EP1960846B1 (en) | 2012-10-17 |
Family
ID=37025266
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05111266A Withdrawn EP1791041A1 (en) | 2005-11-24 | 2005-11-24 | Timepiece movement |
EP06819640A Active EP1960846B1 (en) | 2005-11-24 | 2006-11-21 | Clockwork movement |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05111266A Withdrawn EP1791041A1 (en) | 2005-11-24 | 2005-11-24 | Timepiece movement |
Country Status (4)
Country | Link |
---|---|
US (1) | US7946754B2 (en) |
EP (2) | EP1791041A1 (en) |
JP (1) | JP5025656B2 (en) |
WO (1) | WO2007060150A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH710205B1 (en) | 2014-10-03 | 2018-09-28 | Breitling Ag | Two-stage column wheel chronograph mechanism. |
EP3185090B1 (en) * | 2015-12-23 | 2019-10-23 | Rolex Sa | Device for counting and displaying a fraction of a time unit |
EP3913443A1 (en) | 2020-05-22 | 2021-11-24 | Patek Philippe SA Genève | Control device for clock mechanisms |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US383749A (en) * | 1888-05-29 | Split seconds stop watch | ||
DE89768C (en) * | ||||
CH6505A (en) * | 1893-04-12 | 1893-11-30 | Paul Perret | Central seconds mechanism, independent and chronograph for watches |
US2325539A (en) * | 1939-08-22 | 1943-07-27 | Firm Soc Ind De Soneeboz Sa | Timepiece with chronograph |
DE2556314C2 (en) * | 1975-12-13 | 1978-01-26 | Pforzheimer Uhren Rohwerke Rudolf Wehner 7530 Pforzheim | Calendar correction device for small watches |
JPS5920181U (en) * | 1982-07-28 | 1984-02-07 | 愛知時計電機株式会社 | Mainspring winding and detent device |
JP3568907B2 (en) * | 2001-03-14 | 2004-09-22 | セイコーインスツルメンツ株式会社 | Chronograph watch with stop lever |
JP2002107470A (en) * | 2001-08-17 | 2002-04-10 | Seiko Instruments Inc | Chronograph clock having interlocking lever device |
EP1394637B1 (en) | 2002-08-27 | 2006-04-26 | Frédéric Piguet S.A. | Timepiece, in particular wristwatch, comprising an alarm mechanism |
JP4462606B2 (en) * | 2004-01-27 | 2010-05-12 | セイコーインスツル株式会社 | Clock with display correction mechanism |
DE102004017345B3 (en) * | 2004-04-06 | 2005-09-01 | Lange Uhren Gmbh | Stopwatch with mechanism for starting and stopping second hand and minute hand for timing events has heart-shaped cam on minute wheel for synchronization of minute indicator with minute hand |
JP4498807B2 (en) * | 2004-04-09 | 2010-07-07 | シチズンホールディングス株式会社 | Electronic clock with chronograph function |
-
2005
- 2005-11-24 EP EP05111266A patent/EP1791041A1/en not_active Withdrawn
-
2006
- 2006-11-21 US US12/094,890 patent/US7946754B2/en not_active Expired - Fee Related
- 2006-11-21 EP EP06819640A patent/EP1960846B1/en active Active
- 2006-11-21 JP JP2008541723A patent/JP5025656B2/en not_active Expired - Fee Related
- 2006-11-21 WO PCT/EP2006/068692 patent/WO2007060150A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007060150A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP1960846B1 (en) | 2012-10-17 |
WO2007060150A2 (en) | 2007-05-31 |
WO2007060150A3 (en) | 2007-09-07 |
US20080298178A1 (en) | 2008-12-04 |
JP2009517643A (en) | 2009-04-30 |
US7946754B2 (en) | 2011-05-24 |
EP1791041A1 (en) | 2007-05-30 |
JP5025656B2 (en) | 2012-09-12 |
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