EP0451337A1 - Montre à répétition - Google Patents

Montre à répétition Download PDF

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Publication number
EP0451337A1
EP0451337A1 EP90122016A EP90122016A EP0451337A1 EP 0451337 A1 EP0451337 A1 EP 0451337A1 EP 90122016 A EP90122016 A EP 90122016A EP 90122016 A EP90122016 A EP 90122016A EP 0451337 A1 EP0451337 A1 EP 0451337A1
Authority
EP
European Patent Office
Prior art keywords
hour
quarter
star
hourly
relay
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
Application number
EP90122016A
Other languages
German (de)
English (en)
Other versions
EP0451337B1 (fr
Inventor
Giulio Papi
Dominique Renaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IWC International Watch Co AG
Original Assignee
IWC International Watch Co AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IWC International Watch Co AG filed Critical IWC International Watch Co AG
Publication of EP0451337A1 publication Critical patent/EP0451337A1/fr
Application granted granted Critical
Publication of EP0451337B1 publication Critical patent/EP0451337B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04B21/12—Reiterating watches or clocks

Definitions

  • the invention relates to a repeater watch with a quarter-hour hammer mechanism which can be driven by a quarter-hour rake, by means of which a quarter-hour tone spring can be driven by a quarter-hour hammer, the number of quarter-hours to be struck being determined by the pivoting position of a quarter distributor which can be pivoted about a pivot axis, of which the pushbutton can be used to push the button Position of a quarter hour scale rotatably driven by a clockwork can be scanned.
  • the problem with repeater watches, especially wristwatches, is to accommodate the repeater mechanism in the smallest possible space.
  • the watch should be made as flat as possible.
  • the repeater mechanism both requires little installation space and guarantees an exact impact drive, especially in the transition areas from a quarter of an hour to the next quarter of an hour.
  • the quarter-hour scale provided with spiral-like quarter-hour stages is connected in a rotationally fixed manner to a coaxially arranged relay star, the number of teeth of which corresponds to the number of quarter-hours and which can be rotated by one tooth spacing of the relay star every quarter hour.
  • This training not only allows a flat structure, but also leads to an exact changeover from a quarter of an hour to the next quarter of an hour within a fraction of a second due to the leaping drive of the relay star.
  • the striking mechanism always strikes the exact time.
  • the relay star is preferably adjustable by an incident star that can be rotated by the clockwork and can be freely rotated relative to the drive of the clockwork by a certain small angle of rotation, a spring-loaded raster protruding into a tooth space of the relay star, on the ramp-like sides of which in the circumferential direction of the relay star the teeth of the relay star slide along the notch from the tooth gap.
  • the detent can be arranged at the free end of a detent lever which is freely pivotable about an axis and can preferably be approximately V-shaped with a flat angle between the legs of the V.
  • the incident star can be arranged in a rotationally fixed manner on a freely rotatably mounted incident axis stump which can be rotatably driven by a drive axis stump continuously driven by the clockwork, rotatably mounted and coaxially arranged with the incident axis stump, whereby the incident axis stump and drive axis stump are freely movable relative to one another by the determined small angle of rotation are rotatable about their longitudinal axis.
  • the projecting stub and the driving stub can each have stop faces which, after the relative rotation of the stub and the driving stub, can be in contact with one another to form a rotationally fixed connection.
  • an hourly cam star with radially protruding switching cams can be arranged in a rotationally fixed coaxial manner on the relay star and a freely rotating hour star star of the switching cams engaging in the tooth gap of the hour star star can be rotated one at a time Tooth spacing of the teeth of the hourly star can be driven to rotate in an abrupt manner, the position of the hourly series being palpable and correspondingly an hour hammer that can be struck by means of an hour hammer. Due to the multiple function of components, this training is both low in components and requires little installation space.
  • the low overall height contributes if the hour scale is provided with spiral hour levels and the number of teeth of the hour star corresponds to the number of hour levels.
  • a grid extends spring-loaded into a tooth gap of the hourly star, whereby it can slide the teeth of the hourly star out of the tooth gap on ramp-like sides directed in the circumferential direction of the hourly star, the hourly star is jumped forward and thus an exact, timely switching of the striking mechanism within a fraction of one Second from one hour to the next.
  • multiple functions of the incident star can be connected in a rotationally fixed manner to a coaxially arranged minute transmitter which has radially protruding actuating arms by means of which a minute scale can be adjusted, the position of the minute scale being palpable and correspondingly via one Minute striking a minute hammer a minute tone spring is drivable.
  • the minute scale is a lever which can be pivoted about a pivot axis against the force of a spring and which has a setting ramp along which the actuating arm can pivotably slide the minute scale, the sliding period during which the setting arm moves along the setting ramp is slidable, preferably a quarter of an hour.
  • the actuating arm can be disengaged from the actuating ramp at the end of the sliding period, it is activated at exactly the right time Switch from one floating period to the next floating period within a fraction of a second.
  • the repeater watch shown has an elevator lever 1 which can be pivoted counterclockwise about an axis 2 by manual loading of a cam 3 until it comes into contact with an hourly scale 5 with a stop pin 4.
  • the hourly scale 5 is rotatably mounted and provided with twelve hourly steps, evenly distributed around the circumference, which have a spiraling height.
  • the elevator lever 1 has a tooth sector 7 which is concentric with the axis 2 and which engages in an elevator drive wheel 8.
  • the elevator drive wheel 8 is arranged in a rotationally fixed manner on a rotatable spring core axis 9, to which in turn the one end of a spiral tension spring 10 which surrounds the spring core axis 9 is fastened.
  • the other end of the tension spring 10 is connected to a fixed barrel 11.
  • an hour creator 13 and a quarter hour creator 14 can be pivotally driven.
  • the hour creator 13 thereby drives a likewise pivotable hour hammer lever 16 via a pivotable intermediate lever 15 in such a way that it moves away from an hourly tone spring 19 with its hour hammer 17 against the force of a spring 18.
  • the hour hammer 17 is moved with momentum against the hour tone spring 19 and generates a tone.
  • a quarter-hour hammer 22 is lifted by a quarter-hour spring 23 against the force of a spring 24 by the quarter-hour creator 14 via an intermediate lever 20 and a quarter-hour hammer lever 21.
  • the quarter-hour scoop 14 snaps over a tooth of the quarter-hour calculator 12
  • the quarter-hour tone spring 23 strikes through the quarter-hour hammer 22, as a result of which a tone of a different frequency than the hour-tone tone spring 19 is generated.
  • a minute scraper 25 can also be pivoted about the same axis as the quarter hour scoop 14, through which the intermediate lever 20 and the quarter hour hammer lever 21 can also be moved and a sound can be generated by the quarter hour hammer 22.
  • the minute creator 25 can be pivotally driven by a minute rake 26 which is pivotable about an axis 27.
  • the hour / quarter hour rake 12 has a row of teeth of twelve hour teeth in a clockwise direction, a first row of teeth with three quarter hour teeth and a second row of teeth with three quarter hour teeth.
  • the hour teeth and the first row of teeth of the quarter hour teeth come into engagement with the hour creator 13 and the second row of teeth of the quarter hour teeth with the quarter hour creator 14. This means that the quarter hours produce a stroke of both gongs 19 and 23.
  • a quarter distributor 29 which can be pivoted about an axis 28 and which, depending on the pivoted position, interrupts the rotary movement of the hour / quarter hour calculation 12 sooner or later by a decoupler finger 30 of the hour / quarter hour calculation 12 in a hook recess 31 assigned to the respective quarter hour of the quarter distributor 29 engages.
  • the pivot position of the quarter distributor 29 is determined in that it scans a quarter hour scale 34 with a button 33 arranged at the free end of its probe arm 32.
  • the quarter-hour scale 34 is rotatably driven about an axis 35 with one revolution per three hours. It has evenly distributed three spirally rising seasons 36, each having four stages, which determine the degree of pivoting movement of the quarter distributor 29.
  • a relay star 37 with twelve teeth and an hourly cam star 38 with three radially protruding cams 39 are also arranged on the axis 35 in a rotationally fixed manner with the quarter hour relay 34. Due to the cams 39 of the hourly cam star 38, a rotation is fixed with the hourly scale 5 connected hourly series star 40, which has twelve teeth, one of which is assigned to a stage of the hourly series 5 and drives it with one revolution per 12 hours.
  • the relay star 37 can be rotatably driven by the radial arms 41 of an incident star 42 which is driven counterclockwise by the clockwork of the repeater clock at one revolution per 1.5 hours.
  • the incident star 42 has six arms. Due to the ramp-like free ends of the arms 41, every quarter hour of the relay star 37 is rotated further by one tooth width. So that this movement can take place suddenly despite the continuously driving clockwork, the relay star 37 is held in a quarter-hour position by a V-shaped catch 43.
  • the detent 43 which is arranged on the free end of a locking lever 45 which can be pivoted about an axis 44, engages in a tooth gap of the relay star 37 under the action of a spring 46.
  • the axis on which the incident star 42 is arranged is also formed in two parts.
  • This axis consists of a freely rotatable stub axle 47 with which the stub 42 is firmly connected.
  • a drive axle stub 48 is rotatably mounted coaxially to the trailing axle stub 47 and carries a drive wheel 49 which is continuously driven by the clockwork, not shown.
  • the mutually facing ends of the collision stub 47 and the drive stub 48 each have facing stop surfaces 50 on the same plane, which have so much play 51 in the circumferential direction that a relative rotation of 8 ° is possible.
  • the relay star 37 can continue to rotate freely by this amount, which is caused by the fact that the detent 43, which had previously slid out of its tooth space against the force of the spring 46 due to the rotary drive of the relay star 37, has reached the deepest position of the next tooth gap by the spring 46 of the star 37 is pressed.
  • the relay star 37 thus only jumps by one tooth width at the end of a quarter of an hour.
  • a minute rake bush 54 Concentrically to the bearing bush 52 for the trailing axle stub 47 arranged on a plate 53, the latter is rotatably mounted around a minute rake bush 54 which forms the axis 27 and on which the minute rake 26 is arranged.
  • a minute transmitter 56 which has six radially protruding actuating arms 57, is connected in a rotationally fixed and coaxial manner to the incident star 42.
  • One free end of an actuating arm 57 slides along a rising adjusting ramp 58 along a minute scale 59 and pivots it against a spring force about a pivot axis 60.
  • the minute scale 59 has a row of teeth 61 with fifteen teeth which can be scanned by a button 62 of the minute calculator 26 and swings it to the current minute position within a quarter of an hour.
  • a sliding period of an actuating arm 57 along the actuating ramp 58 is a quarter of an hour.
  • the actuating arm 57 suddenly disengages from the actuating ramp 58 at the end of the quarter hour and enables the minute series 59 to be swung back in that the incident star 45, which is firmly connected to the minute transmitter 56, suddenly rotates forward by 8 ° at the end of a quarter of an hour.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP90122016A 1990-04-13 1990-11-17 Montre à répétition Expired - Lifetime EP0451337B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012012A DE4012012A1 (de) 1990-04-13 1990-04-13 Repetieruhr
DE4012012 1990-04-13

Publications (2)

Publication Number Publication Date
EP0451337A1 true EP0451337A1 (fr) 1991-10-16
EP0451337B1 EP0451337B1 (fr) 1993-07-21

Family

ID=6404371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122016A Expired - Lifetime EP0451337B1 (fr) 1990-04-13 1990-11-17 Montre à répétition

Country Status (2)

Country Link
EP (1) EP0451337B1 (fr)
DE (2) DE4012012A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH7905A (fr) * 1894-01-27 1894-07-31 Le Coultre & Cie Mécanisme de répétition à minutes simplifié et monté sur un mouvement de montre simple
CH44390A (fr) * 1908-05-27 1909-08-02 R Picard & Cie Fabrique Invict Mécanisme de répétition pour pièces d'horlogerie
CH633376A5 (en) * 1977-05-06 1982-11-30 Yarden Medical Eng Ltd Appliance for setting the flow rate of a liquid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH7905A (fr) * 1894-01-27 1894-07-31 Le Coultre & Cie Mécanisme de répétition à minutes simplifié et monté sur un mouvement de montre simple
CH44390A (fr) * 1908-05-27 1909-08-02 R Picard & Cie Fabrique Invict Mécanisme de répétition pour pièces d'horlogerie
CH633376A5 (en) * 1977-05-06 1982-11-30 Yarden Medical Eng Ltd Appliance for setting the flow rate of a liquid

Also Published As

Publication number Publication date
DE59002037D1 (de) 1993-09-02
EP0451337B1 (fr) 1993-07-21
DE4012012A1 (de) 1991-10-17

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