EP1125172B1 - Montre - Google Patents

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Publication number
EP1125172B1
EP1125172B1 EP00954245A EP00954245A EP1125172B1 EP 1125172 B1 EP1125172 B1 EP 1125172B1 EP 00954245 A EP00954245 A EP 00954245A EP 00954245 A EP00954245 A EP 00954245A EP 1125172 B1 EP1125172 B1 EP 1125172B1
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EP
European Patent Office
Prior art keywords
conchoid
hour
gear wheel
radius
guide pin
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EP00954245A
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German (de)
English (en)
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EP1125172A1 (fr
Inventor
John C. Ermel
Robert Greubel
Stephen Forsey
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    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations

Definitions

  • the present invention relates to a timepiece driven by a mechanical, electric or electronic motor having an analogue and clear 24-hour display according to the preamble of claim 1.
  • Clocks having an analogous and clear 24-hour display are more known, as follows DE 267 810 (D1), US 5,696,740 (D2), WO 91/03774 (D3).
  • the 24-hour uniqueness is solved with two concentric dials of 12 hours each, where the first 12-hour group is the time from 0 to 12 o'clock, the second 12-hour group from 12 to 24 o'clock includes.
  • the hour indicator changes its position jerkily; either it is jerked out or shortened as well.
  • the apparatuses for changing the length of the hour hand disclosed in D1 and D2 either require additional energy for tensioning a spring (D1) or an additional energy source (D2) from the clock motor.
  • D1 and D2 either require additional energy for tensioning a spring (D1) or an additional energy source (D2) from the clock motor.
  • D1 and D2 either require additional energy for tensioning a spring (D1) or an additional energy source (D2) from the clock motor.
  • D1 and D2 either require additional energy for tensioning a spring (D1) or an additional energy source (D2) from the clock motor.
  • D1 and D2 additional energy source from the clock motor.
  • D3 shows at all times of day and night the hours on two halves of circle with different radius. Neither the technical feasibility nor the market acceptance, these were solutions that could prevail.
  • Object of the present invention is therefore to move the hours marking indicator - this is the hour hand or otherwise a clear and distinctive element - on such a path, which allows a clear assignment of the position of the display element with one of the 24 hours of the day's run and so by his position causes a striking difference in the display between the day and the night hours, without the usual pointer angle positions must be changed.
  • a 24-hour clock is known, the display element, here the hour hand, running on a spiral path from the outside to the inside, the display element occupies a one-unique position in 24 hours. After 24 hours, the display element returns azimuthally and radially to its original position. The radial return is effected by the fact that the hour hand can be radially extended against the force of a spring element. This extension is effected by guiding the inner end of the pointer on a spiral path, which in turn performs a rotational movement which is half as fast relative to that of the hour hand. After complete circulation of this spiral path, the hour hand returns to its original position due to the spring force built up within 24 hours.
  • Fig. 1 is a plan view of a first embodiment of an inventive clock.
  • an inventive hour display element in the form of a variable-length hour hand 5 is shown.
  • the tip of the hour hand 5 runs on a double-loop closed curve 7 with an outer loop 8 and an inner loop 9, which have a crossing point 6.
  • the day hours of 6 to 18 o'clock of the outer loop 8 and the night hours of 18 to 6 o'clock of the inner loop 9 are assigned. Since this assignment is only graphical in nature, it can of course be reversed.
  • Such a double-loop closed curve is, for example, the conchoid, also called Pascal's screw (described, for example, in Karel Rektorys, Applicable Mathematics, Cambridge, Mass., USA, 1969). Dashed executed contains Fig. 1 the representation of a second Konchoide 10, which emerges from the curve 7 with an outer loop 8 and an inner loop 9 by a constant radial displacement.
  • This second Konchoide 10 is shown in phantom, since it may be hidden by a disc 11; she is trained as a guide and together with the governing bodies in Fig. 2 , explained in more detail.
  • Fig. 2 is the representation of only the inventive part of the clock.
  • the disk 11 is shown here only dashed and transparent and gives the view freely on the underlying and covered by the disk 11 Konchoide 10.
  • the hour hand 5 is, as already out Fig. 1 visible, designed in two parts. Its outer part, occupied by the number 13, is pivotally connected to a sliding member 12; this slider 12 is located in the example, groove-shaped Konchoide 10 and follows in circulation of the inner part of the hour hand 5 of the path of these Konchoide 10.
  • the said inner part of the hour hand 5 carries the numeral 14 and is fixedly connected to the disc 11. The disc 11 thus performs, together with the inner part 14 of the hour hand 5, one revolution in 12 hours.
  • the sliding element 12 is crescent-shaped in this embodiment in such a way that the radius of curvature of the outer surface is smaller than the smallest radius of curvature of the outer surface of the Konchoide 10, and that of the inner surface is greater than the largest radius of curvature of the inner surface of the Konchoide 10. Die measured in the tangential direction longitudinal extent of the sliding member 12 is designed so large that at the intersection of the two loops of the conchoid 10 (which carry the numbers 15, 16), the slider 12 is guided by the outer loop 15 securely on the inner loop 16, or from the inner loop 16 securely on the outer loop 15th
  • Fig. 3 is a longitudinal section through the embodiment of Fig. 1 for example at 24 h.
  • a dial 24 serves as a non-limiting example as a mounting platform for all other mentioned and yet to be named elements. This element and referred to below dial 24 can be both factory and related to the housing. It is only important that in the operation of the clock, the reference to the actual dial is a solid.
  • the conchoid 10 is incorporated with its outer loop 15 and its inner loop 16, for example by milling.
  • the dial 24 is a, called hour tube 18, hollow shaft mounted, with which the disc 11 and the inner Part 14 of the hour hand 5 are firmly connected. For stability reasons, the inner part 14 of the hour hand 5, for example, still connected to a support 19 with the disc 11.
  • the disc 11 has, parallel to the inner part 14 of the hour hand 5, a radial slot 20.
  • a guide pin 21 is movable, with which the outer part 13 of the hour hand is connected to the sliding member 12.
  • the sliding member 12 is thus moved in the azimuthal direction through the disc 11.
  • the guide pin 21 is fixedly connected, for example, with the sliding member 12 and rotatably supported in the outer part 13 of the hour hand 5 about its longitudinal axis. According to the invention, however, this can also be solved so that the guide pin 21 is fixedly connected to the outer part 13 of the hour hand 5 and rotatably mounted in the sliding member 12 about its longitudinal axis.
  • the outer part 13 of the hour hand 5 is longitudinally displaceable relative to the inner part 14, for which arrangement several solutions not to be described here are known.
  • dial is here to be interpreted broadly; the decision which and if any numbers are to stand on it, is purely aesthetic nature.
  • the technical relevance of the dial 24 is in its capacity as a base plate for all the above elements in the sense of the previously said.
  • Fig. 4 is a section of the Konchoide 10 shown together with another embodiment of an in Fig. 2 . 3
  • This consists of a support body 25 and here, for example, three in this rotatably mounted wheels 26, 27, 28.
  • Their arrangement is chosen so that the central wheel 26 is outside, so that it touches the outer surface of the conchoid 10 can; the other two wheels 27, 28 can touch the inner surface of the conchoid 10.
  • the arrangement of the three wheels 26, 27, 28 is further designed so that the guide member 17 both in that part of the Konchoide 10 with the largest radius of curvature, as well as in that with the smallest with radial play in the tangential direction is movable.
  • the support body 25 carries the guide pin 21, for which the same applies, as in this Fig. 3 said.
  • Fig. 4 registered - but dashed - is a variant of the support body 25.
  • An arm 29 of the support body 25 is designed as a bending spring 30, so that all three wheels 26, 27, 28 always touch their assigned side surface of the conchoid 10.
  • both arms of the support body 25 may be designed as a bending springs 30, whereby the contact pressure of the wheels 26, 27, 28 can be better dosed on the side surfaces.
  • the length of the guide member 17, so the distance of the outer wheels 27, 28 is selected so that the intersection of the two loops 15, 16 of the conchoid 10 can be passed in the right direction.
  • the number of wheels 26, 27, 28 can, of course, be chosen differently, for example greater, with the appropriate adaptations of the shape and construction of the support body 25.
  • FIGS. 5 and 6 are illustrations of a second embodiment for the leadership of the top of the hour hand 5 on the proposed double-edged curve.
  • 7 Fig. 5 is a section perpendicular to the plane of the dial 24, Fig. 6 a top view.
  • the Fig. 5 is for the purpose of better understanding carried out so that all subsequent axes are in the same plane, which is actually never the case.
  • Fig. 6 is a two-loop curve (also called Pascal's screw) 31 with an outer loop 40 and an inner loop 41 and a crossing point 42 shown in dashed lines.
  • This curve 31 is in this embodiment by the interaction of several Gears and guide arms effect as follows:
  • the arm 32 can, as well as off Fig. 6 can be seen, in a plane parallel to those of the gears areal trained component. He wears here, firmly connected to him, a third gear C with radius r (C), which meshes with a fourth gear D1 with radius r (D1), which is supported by an axis 33. This is mounted in a second arm 34. The second arm 34 is firmly seated on the axis 36 of the second gear B and therefore rotates with this.
  • the axis 33 of the fourth gear D1 carries - also firmly connected to it - a fifth gear D2 with radius r (D2), which meshes with a sixth gear E with radius r (E).
  • This sixth gear E is mounted on an axle 35 which is fixed to the second arm 34 at a distance d (E) from the axle 36 and runs parallel to all previously mentioned axes.
  • the sixth gear E carries at a distance d (F) from the axis 35 the parallel to the axes 33, 36 extending guide pin 21st
  • r (C) is not dependent on r (A), but purely opportunistically given by the available space, with the restriction that if the hour tube 18 is assigned the outer radius r (18) r C ⁇ r A + r B - r 18
  • the actual dial 24 may be at least partially transparent and arranged so that the minute and second hands 1, 2 run over it, but the hour display below.
  • the gear E then carries a particularly highlighted by its brightness or color mark - for example, a round disk - which rotates on the double-edged curve 31. This disk then replaces the top of the hour hand 5. The latter as well as the said disk are then display elements.

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  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Lock And Its Accessories (AREA)

Claims (12)

  1. Montre comportant un moteur horloger mécanique, électrique ou électronique, un afficheur analogique et univoque sur 24 heures, au moins un élément d'affichage pour les heures, et qui est entraînée par un tube horaire (18), caractérisé en ce que
    - l'élément d'affichage (5) pour les heures tourne sur une courbe fermée à deux boucles (7, 31) appelée conchoïde ou hélice de Pascal dont chaque point est touché précisément une fois en 24 heures par l'élément d'affichage (5), ladite courbe (7, 31) présentant une boucle extérieure (8, 40) et une boucle intérieure (9, 41) avec un point d'intersection (42) des deux boucles (8, 40 ; 9, 41),
    - des moyens sont disponibles pour guider l'élément d'affichage (5) sur ladite courbe à deux boucles (7, 31),
    - la position angulaire de l'élément d'affichage (5) par rapport au point chronologique zéro à 12 h et 24 h est celle habituelle dans les montres connues.
  2. Montre selon la revendication 1 du brevet, caractérisée en ce que
    - les moyens permettant de guider l'élément d'affichage (5) sur ladite courbe à deux boucles (7, 31) sont composés des éléments suivantes :
    - une rainure reliée au moins indirectement au cadran (24) et qui est réalisée également sous forme d'une courbe fermée à deux boucles en forme de conchoïde (10),
    - un organe de guidage (12, 17) qui est mobile longitudinalement dans ladite conchoïde (10) et porte une tige de guidage (21),
    - un élément (11, 14) relié fixement au tube horaire (18) et qui déplace au moins indirectement l'organe de guidage (12, 17) dans la conchoïde (10),
    - un élément d'affichage (13) qui, dans le sens radial, est déplacé par la tige de guidage (21) dans le sens azimutal par l'élément (11, 14) relié fixement au tube horaire (18).
  3. Montre selon la revendication 2 du brevet, caractérisée en ce que
    - il est prévu une aiguille des heures (5) de longueur variable comportant une pièce intérieure (14) et une pièce extérieure (13), la pièce intérieure (14) pouvant être reliée à l'élément relié fixement au tube horaire (18),
    - la pièce extérieure (13) de l'aiguille des heures (5) se déplace sur la pièce intérieure (14) avec une mobilité dans le sens radial et dans le sens azimutal depuis celle-ci,
    - le mouvement radial de la pièce extérieure (13) de l'aiguille des heures (5) est provoqué par la tige de guidage (21) qui est en prise au moins indirectement avec ladite pièce extérieure (13),
    - l'élément d'affichage est la pointe de la pièce extérieure (13) de l'aiguille des heures (5).
  4. Montre selon la revendication 3 du brevet, caractérisée en ce que l'organe de guidage qui porte la tige de guidage (21) est un élément coulissant en forme de faucille (12) qui est mobile dans le sens azimutal avec un jeu radial dans la conchoïde en forme de rainure (10), le rayon de courbure extérieur de l'élément coulissant en forme de faucille (12) étant inférieur au plus petit rayon de courbure de la surface extérieure de la conchoïde en forme de rainure (10) et le rayon de courbure intérieur de l'élément coulissant en forme de faucille (12) étant supérieur au plus grand rayon de courbure de la surface intérieure de la conchoïde en forme de rainure (10).
  5. Montre selon la revendication 3 du brevet, caractérisée en ce que
    - l'organe de guidage qui porte la tige de guidage (21) est un élément de guidage (17) comportant au moins trois roues (26, 27, 28) à axes parallèles posés verticalement sur le plan du cadran (24), deux bras (29), qu'il est prévu en outre un corps support (25) dans lequel les trois dites roues (26, 27, 28) s'appuient, chacun des deux bras (29) portant une roue (27, 28) et la troisième roue (26) s'appuyant entre les deux roues (27, 28) dans le corps support (25),
    - les roues (26, 27, 28) sont disposées les unes derrière les autres dans le sens de la voie de la conchoïde (10) de manière à ce que les roues extérieures (27, 28) puissent toucher la surface intérieure de la conchoïde (10) et la roue médiane (26) la surface intérieure de la conchoïde (10),
    - les trois dites roues sont en outre disposées de manière à ce que, aussi bien au point de la conchoïde (10) ayant le plus grand rayon de courbure qu'à celui ayant le plus petit rayon de courbure, il y ait suffisamment de jeu radial pour permettre un mouvement azimutal non obligatoire de l'organe de guidage (17),
    - la tige de guidage (21) est disposée au niveau de la roue médiane (26).
  6. Montre selon la revendication 5 du brevet, caractérisée en ce que, sur les bras (29) situés entre la roue médiane (26) et les roues extérieures (27, 28), au moins un se présente sous forme d'un ressort de flexion (30) agissant dans le sens radial.
  7. Montre selon la revendication 1 du brevet, caractérisée en ce que les moyens permettant de guider l'élément d'affichage sur ladite courbe à deux boucles (7, 31) sont composés de roues dentées et de bras les portant le cas échéant.
  8. Montre selon la revendication 7 du brevet, caractérisée en ce que
    - les moyens permettant de guider l'élément d'affichage sur ladite courbe à deux boucles (7, 31) sont composés des éléments suivantes :
    - une première roue dentée (A) de rayon r(A), qui est disposée concentriquement par rapport au tube horaire (18) de rayon r(18) et est reliée fixement au cadran (24) au moins indirectement,
    - un premier bras (32) relié fixement au tube horaire (18) et s'étendant radialement vers l'extérieur, dans lequel s'appuie en rotation un premier axe (36) d'une deuxième roue dentée (B) de rayon r(B),
    - la deuxième roue dentée (B) se situe dans le même plan que la première roue dentée (A) et s'empeigne avec celle-ci,
    - une troisième roue dentée (C) de rayon r(C) est prévue et est disposée concentriquement par rapport à la deuxième roue dentée (B) et reliée fixement au premier bras (32),
    - un deuxième bras (34) est prévu et est également fixé sur le même axe (36) que la deuxième roue dentée (B),
    - une quatrième roue dentée (D1) de rayon r(D1) est prévue et qu'elle se situe dans le même plan que la troisième roue dentée (C) et s'empeigne avec celle-ci,
    - la quatrième roue dentée (D1) est fixée sur un axe (33) s'étendant parallèlement à l'axe (36) de la deuxième roue dentée (B) qui s'appuie en rotation dans le deuxième bras (34),
    - le deuxième bras (34), à distance d(E) de l'axe (36) sur lequel il est fixé, porte un axe (35) s'étendant parallèlement à celui-ci,
    - une cinquième roue dentée (E) est prévue et peut tourner autour du dernier axe cité (35) et supporte, à distance d(F) de celui-ci, la tige de guidage (21) disposée parallèlement à celui-ci,
    - une sixième roue dentée (D2) de rayon r(D2) est prévue et est disposée dans le même plan que la cinquième roue dentée (E) et s'empeigne avec celle-ci, la sixième roue dentée (D2) étant fixée sur le même axe (33) que la quatrième roue dentée (D1), coaxialement par rapport à celle-ci,
    - pour les rayons r(A), r(B), r(C), r(D1), r(D2), les relations suivantes s'appliquent : r B = 2 ⁢ r A
    Figure imgb0022
     r C = 2 ⁢ r D ⁢ 1
    Figure imgb0023
     r E = r D ⁢ 2
    Figure imgb0024
  9. Montre selon la revendication 8 du brevet, caractérisée en ce que
    - le point d'intersection (42) des deux boucles (40, 41) de la courbe à deux boucles (31) est à une distance d(31) du centre du tube horaire (18), sachant que r A + r B = d 31
    Figure imgb0025
    - la plus grande distance radiale entre chacune des deux boucles (40, 41) de la courbe à deux boucles (31) est d(40) ou d(41) et est reliée aux distances d(E) et d(F) par les relations suivantes : d E = d F
    Figure imgb0026
     d 40 - d 41 = 4 ⁢ d E
    Figure imgb0027
    - le tube horaire présente un rayon extérieur r(18) qui définit avec r(A), r(B) et r(C) la restriction selon laquelle r C < r A + r B - r 18 .
    Figure imgb0028
  10. Montre selon les revendications 3 et 7 du brevet, caractérisée en ce que
    - l'élément relié fixement au tube horaire (18) est un disque (11) disposé concentriquement par rapport à celui-ci,
    - il est prévu une aiguille des heures (5) de longueur variable comportant une pièce intérieure (14) et une pièce extérieure (13), la pièce intérieure (14) pouvant être reliée au disque (11),
    - la pièce extérieure (13) de l'aiguille des heures (5) est mobile dans le sens radial par rapport à la pièce intérieure (14),
    - le mouvement radial de la pièce extérieure (13) de l'aiguille des heures (5) est provoqué par la tige de guidage (21) qui est en prise au moins indirectement avec ladite pièce extérieure (13),
    - l'élément d'affichage est la pointe de la pièce extérieure (13) de l'aiguille des heures (5),
    - le disque (11) est agencé de manière à pouvoir masquer les éléments de construction sous-jacents destinés au guidage de l'élément d'affichage (5).
  11. Montre selon la revendication 10 du brevet, caractérisée en ce que le disque (11) présente une fente s'étendant radialement pour la tige de guidage (21).
  12. Montre selon la revendication 9 du brevet, caractérisée en ce que
    - l'élément de guidage, à l'endroit de la tige de guidage (21), est une marque apposée sur la roue dentée (E),
    - la courbe à deux boucles (31) qui décrit la voie de la tige de guidage (21) est aussi grande que la courbe fermée à deux boucles (7) de la voie de l'élément d'affichage.
EP00954245A 1999-09-02 2000-09-01 Montre Expired - Lifetime EP1125172B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH160399 1999-09-02
CH160399 1999-09-02
PCT/CH2000/000466 WO2001018612A1 (fr) 1999-09-02 2000-09-01 Montre

Publications (2)

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EP1125172A1 EP1125172A1 (fr) 2001-08-22
EP1125172B1 true EP1125172B1 (fr) 2009-11-11

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US (1) US6809992B1 (fr)
EP (1) EP1125172B1 (fr)
JP (1) JP4471548B2 (fr)
CN (1) CN1154027C (fr)
AT (1) ATE448510T1 (fr)
AU (1) AU6679600A (fr)
CA (1) CA2347860A1 (fr)
DE (1) DE50015790D1 (fr)
HK (1) HK1042343B (fr)
WO (1) WO2001018612A1 (fr)

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EP3798744B1 (fr) * 2019-09-25 2022-05-11 Blancpain SA Mécanisme d'affichage d'horlogerie à guidage multipistes

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WO2013056303A1 (fr) * 2011-10-17 2013-04-25 Zaja Tomislav Ensemble cadran
US10012958B1 (en) 2015-08-10 2018-07-03 Paul Antoney Gallimore Time keeping assembly with plurality of display appearances and associated systems
US9791833B1 (en) 2016-04-13 2017-10-17 Google Inc. Physical watch hands for a computerized watch
US10338532B2 (en) * 2017-10-30 2019-07-02 L. Franklin KEMP Trigonometric display and method thereof
USD854944S1 (en) 2017-10-30 2019-07-30 Franklin Kemp Trigonometric display clock
EP3798743B1 (fr) * 2019-09-25 2022-05-18 Blancpain SA Mécanisme d'affichage d'horlogerie à guidage multipistes

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Publication number Priority date Publication date Assignee Title
EP3798744B1 (fr) * 2019-09-25 2022-05-11 Blancpain SA Mécanisme d'affichage d'horlogerie à guidage multipistes

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JP4471548B2 (ja) 2010-06-02
CN1335947A (zh) 2002-02-13
AU6679600A (en) 2001-04-10
CA2347860A1 (fr) 2001-03-15
EP1125172A1 (fr) 2001-08-22
ATE448510T1 (de) 2009-11-15
CN1154027C (zh) 2004-06-16
US6809992B1 (en) 2004-10-26
JP2003508793A (ja) 2003-03-04
HK1042343A1 (en) 2002-08-09
WO2001018612A1 (fr) 2001-03-15
HK1042343B (zh) 2005-03-24
DE50015790D1 (de) 2009-12-24

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