WO1999026114A1 - Article d'horlogerie a lecture analogique - Google Patents
Article d'horlogerie a lecture analogique Download PDFInfo
- Publication number
- WO1999026114A1 WO1999026114A1 PCT/FR1998/002439 FR9802439W WO9926114A1 WO 1999026114 A1 WO1999026114 A1 WO 1999026114A1 FR 9802439 W FR9802439 W FR 9802439W WO 9926114 A1 WO9926114 A1 WO 9926114A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- movement
- predetermined
- timepiece according
- movable
- duration
- Prior art date
Links
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
- G04B19/00—Indicating the time by visual means
- G04B19/06—Dials
- G04B19/08—Geometrical arrangement of the graduations
Definitions
- the present invention relates to timepieces of the type with reading or analog indication of the time or time, that is to say comprising, in contrast to the articles with digital reading, a mobile indicator which moves by compared to a fixed indicator.
- the mobile indicator is a needle which rotates above a fixed graduated dial, the whole being protected by a transparent glass.
- the invention applies to a wide variety of timepieces of this type, for example watches (bracelet, chain, etc.), clocks, pendulums, alarm clocks, chronometers, etc.
- These articles include, for driving the mobile indicator, a first mobile input member which moves at a predetermined constant speed, a second mobile output member which in turn drives the mobile indicator, and coupling means. between the first and second movable entry and exit members.
- the mobile indicator moves continuously in a single movement at constant speed. This mobile indicator allows, for example, a reading of the hours, and it is associated with a second mobile indicator for the reading of the minutes, and possibly with a third indicator for the reading of the seconds, all these indicators moving each constantly at a constant speed. .
- the object of the invention is to provide a timepiece with analog reading of a new type which makes it possible to indicate the time only over a fraction of a reference period, the rest of this reference period being obscured.
- the timepiece with analog reading or indication according to the invention is characterized in that: the coupling means between the first and the second movable input and output members are arranged to drive the second member outgoing mobile according to a compound cyclic movement consisting of at least one sequence of a first movement at a first predetermined constant speed, for a first predetermined duration, and of a second movement at a second predetermined speed, different from the first speed, during a second predetermined duration, the sum of all the first and second predetermined durations being equal to a reference period.
- the marks indicating the time can be more separated from each other than in the case where the time must be indicated during every 24 hours with constant precision). It is thus possible to give more importance to a given hourly period (corresponding for example to the night) by indicating the time there more precisely than during the rest of the reference period.
- the mobile and fixed indicators are arranged so that the time or time can only be read for at least part of each first duration.
- the mobile indicator in each sequence, __ is normally driven at constant speed for a first predetermined duration for the indication of the hour or time, during a game at less than this first duration, depending on position relative to the fixed indicator while, at least for the second duration, the reading of the hour or time is impossible.
- the timepiece according to the invention finds its application in the most diverse fields, and in general in the case where the user is only interested in knowing the time or the time for a predetermined fraction. of the reference period.
- This predetermined fraction during which analog reading is possible corresponds for example to the normal and repetitive duration of a precise activity, for example in the field of leisure or the exercise of a profession.
- This fraction is divided into one, two or more durations during the reference period.
- the above reference period is equal to the duration of the cycle of movement of the first movable member, or to a submultiple of this duration, so that the article allows, from day to day, a reading normal time during the period (s) not hidden.
- this reference period is also equal to the duration of the cycle of movement of the second movable member.
- the reference period is for example 24 hours, this duration also preferably being that of the movement cycle of the first movable member.
- the first and second movable members are toothed wheels, the input toothed wheel being driven from an energy source at a constant speed regulated by a timing member.
- the mobile indicator is coaxially integral with the second movable member, while the coupling means comprise at least one toothed sector coaxial with the input toothed wheel and integral with the latter.
- This or these toothed sectors have teeth on a circular arc whose angle at the total center is at least equal, in degrees, to the product of 360 by the ratio of the sum of the first predetermined durations to the reference period.
- the mobile indicator can have a movement of any suitable type.
- This movement can be at a non-zero constant predetermined speed, in one direction or the other and generally lower than the first predetermined speed during the period of non-occultation, a movement composed of advance and retreat, and / or a stop.
- the second movement, during the second duration is a stop, so that, on a sequence, the second movable member, during the first duration, is driven at the first constant speed for the indication of the 'hour or time during at least part of this first duration and, during the second duration, is stopped.
- the second movable member is released from the coupling means and, to avoid its untimely and erratic movement, a brake is advantageously provided to keep it by friction when stopped during this second predetermined duration.
- the arrangement of the mobile indicator and the fixed indicator can be very diverse; for example, one of the indicators carries hour or time indication marks, for example a graduation, while the other indicator carries an index, for example a hand.
- the marks are carried by a fixed dial and the index is rotating and moves between the dial and a lens associated with at least one opaque mask in a sector of a circle, these marks being located outside the area obscured by the mask and identifying the time or time during at least part of the first predetermined duration while, at least during the second predetermined duration, the index is located under the mask and prohibits any reading of the time or time.
- Fig. 1 is a front view cut away of a part of a wristwatch constituting a timepiece with analog reading established according to a preferred embodiment of the invention.
- Fig. 2 is, on a larger scale, a schematic view showing part of the mechanism of the watch of FIG. 1.
- a wristwatch which comprises a case 1, a bracelet 2, a needle 3 for reading the hours, a graduated dial 4 and a protective glass 5 covering the needle and the dial.
- the dial 4 is graduated, not normally over 12 hours, or even over 24 hours as sometimes happens, but only over a predetermined period constituting a fraction of a reference period.
- This reference period is for example 24 hours, and the fraction of this reference period appearing on the dial 4 corresponds, in the example shown, to the period going from 21:00 to 4:00, that is to say from 9 a.m. to 4 a.m., as shown on the scale in Fig. 1.
- the graduation from 9 p.m. to 4 a.m. occupies a significant fraction of dial 4 for a clear reading of the time.
- the eight time marks are regularly spaced 45 degrees apart.
- an opaque mask 6 is associated with the glass 5, for example in the form of an angular sector, which extends over at least part of the space between these two marks, and preferably by slightly releasing them so as not to interfere with the reading of the two extreme hours.
- the mask 6 can bear patterns, prints, identification marks, etc. Furthermore, it extends to the center of the dial 4 and can have any desired aesthetic or decorative shape.
- the needle 3 moves, as indicated by the arrow, and this in the usual way, but at a speed greater than normal, between the mark 21 H and the mark 4 H. Shortly after 4 hours until shortly before 9 pm of the same day, the needle 3 disappears under the opaque mask 6; it is therefore no longer visible to the user, so that the reading of the time is impossible.
- this second phase which is a maximum of 17 h in the example considered, that the needle 3 is driven in a movement different from the previous one and, preferably, by simplicity of the mechanism, this second movement is -a simple stop.
- the hand 3 is stopped midway between the 4 H and 21 H marks.
- the eight time marks are regularly distributed at 45 degrees, the effective time necessary for the hand 3, when it moves, goes from the 4 H mark to the 21 H mark is 1 h.
- the hand 3 is driven for 8 h at a first speed, that is to say at an angular speed which is 1.5 times the normal angular speed of the hour hand moving over a dial graduated at 12 o'clock, and it is kept stationary, under the mask 6, for 16 h, for example halfway between the 4 H and 21 H marks, it being understood that this position is in no way mandatory, even in the example considered.
- markers for quarter-hours and markers for half-hours are particularly useful in the case where, as will be seen below, a minute hand is not provided.
- the mechanism comprises a first movable input member 7 which is constituted by a toothed wheel and which is driven in rotation from a suitable energy source at an angular speed which is regulated by a rhythm member.
- the toothed wheel 7 rotates at a speed of 1 rev / 24 h, and this duration of 24 h of the movement cycle of the wheel 7 constitutes the reference period.
- the toothing of the wheel 7 can, in the usual way, drive at least one mechanism for controlling a minute wheel, and possibly a second wheel, if they exist.
- these two additional needles can be driven, discontinuously, from the coupling means which will be described below, so as to move only during the first period in which the reading takes place.
- the needle 3, shown schematically in FIG. 2, is rotated by a second movable member 8, which is also a toothed wheel. In a simple manner, the needle 3 is coaxially integral with the toothed wheel 8.
- the mechanism For driving the wheel 8 from the wheel 7, the mechanism comprises coupling means arranged to control the movement of the needle 3, and consequently that of the toothed wheel 8, according to the two movements above. .
- these coupling means consist of a toothed sector 9, which is coaxially integral with the input toothed wheel 7 and which meshes with the teeth of the output toothed wheel 8.
- the toothed sector 9 extends over 120 degrees, so that, over the reference period of 24 hours, the toothed wheel 8 is only driven during one third of this reference period, namely 8 h, according to a transmission ratio equal to 3.
- the toothed sector 9 extends over an arc of a circle whose angle at the center is equal, in degrees, to the product of 360 by the ratio of the first predetermined duration to the reference period.
- a brake 10 is therefore advantageously provided, which is constituted, for example, by an elastic metal cantilever blade, one end of which rests on the upper face of the wheel 8 and the other end 12 of which is immobilized on a plate by a screw 13.
- the brake 10 is designed to exert on the wheel 8 a braking action by friction sufficient to prevent the wheel 8 from turning freely when it is n 'is not engaged with the toothed sector 9, but insufficient to disturb its rotation when it cooperates with it.
- the article according to the invention could be at least two masks such as 6, the article according to the invention then having at least two reading durations and at least two concealment durations, and the coupling means being modified in a corresponding manner and obvious.
- the mask 6 could be made to wear means for indicating the minutes, and possibly seconds, and if necessary a date stamp.
- the movement can be taken on the wheel 7 for a permanent indication, or on the toothed sector 9 for an indication only during the first duration.
- the article according to the invention could be of the chronometer type, to give only an indication of the time -, - and not of the hour.
- additional coupling means can be provided between the two movable members 7 and 8, for example a gear train between the toothed sector or sectors 9 and the wheel 8, this train gear only activated during the second duration (s).
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU12428/99A AU1242899A (en) | 1997-11-17 | 1998-11-16 | Timepiece article with analog reading |
EP98955665A EP1046084A1 (fr) | 1997-11-17 | 1998-11-16 | Article d'horlogerie a lecture analogique |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9714365A FR2771191B1 (fr) | 1997-11-17 | 1997-11-17 | Article d'horlogerie a lecture analogique |
FR97/14365 | 1997-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999026114A1 true WO1999026114A1 (fr) | 1999-05-27 |
Family
ID=9513430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/002439 WO1999026114A1 (fr) | 1997-11-17 | 1998-11-16 | Article d'horlogerie a lecture analogique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1046084A1 (fr) |
AU (1) | AU1242899A (fr) |
FR (1) | FR2771191B1 (fr) |
WO (1) | WO1999026114A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE168335C (fr) * | ||||
DE152621C (fr) * | 1900-01-01 | |||
DE29617670U1 (de) * | 1996-10-10 | 1997-01-23 | Hillgruber Dirk | Anzeigevorrichtung |
-
1997
- 1997-11-17 FR FR9714365A patent/FR2771191B1/fr not_active Expired - Fee Related
-
1998
- 1998-11-16 WO PCT/FR1998/002439 patent/WO1999026114A1/fr not_active Application Discontinuation
- 1998-11-16 AU AU12428/99A patent/AU1242899A/en not_active Abandoned
- 1998-11-16 EP EP98955665A patent/EP1046084A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE168335C (fr) * | ||||
DE152621C (fr) * | 1900-01-01 | |||
DE29617670U1 (de) * | 1996-10-10 | 1997-01-23 | Hillgruber Dirk | Anzeigevorrichtung |
Also Published As
Publication number | Publication date |
---|---|
EP1046084A1 (fr) | 2000-10-25 |
FR2771191B1 (fr) | 1999-12-24 |
AU1242899A (en) | 1999-06-07 |
FR2771191A1 (fr) | 1999-05-21 |
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