EP2109017A1 - Montre dotée d'un état affichage régulier et continu - Google Patents

Montre dotée d'un état affichage régulier et continu Download PDF

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Publication number
EP2109017A1
EP2109017A1 EP09154831A EP09154831A EP2109017A1 EP 2109017 A1 EP2109017 A1 EP 2109017A1 EP 09154831 A EP09154831 A EP 09154831A EP 09154831 A EP09154831 A EP 09154831A EP 2109017 A1 EP2109017 A1 EP 2109017A1
Authority
EP
European Patent Office
Prior art keywords
drive
display
segment
output gear
display element
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.)
Withdrawn
Application number
EP09154831A
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German (de)
English (en)
Inventor
Heinz Mutter
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP09154831A priority Critical patent/EP2109017A1/fr
Publication of EP2109017A1 publication Critical patent/EP2109017A1/fr
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • 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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs
    • 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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/207—Indicating by numbered bands, drums, discs, or sheets by means of bands
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0038—Figures or parts thereof moved by the clockwork
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/0008—Indicating the time optically by electric means by bands

Definitions

  • the invention relates to a watch with at least one display element according to the preamble of the independent claim.
  • Clocks which generally means devices with which the representation or the visualization of a time or a time interval is possible, are known in various embodiments. Coaxial axes for the hour and minute hands are provided in the types which have a display commonly referred to as analog. However, this embodiment is not optimal for the reading and offers only little design options with respect to the display. Therefore, watches have also been proposed with a two-dimensional display device in which the time is represented by a continuously or gradually increasing surface, wherein the first dimension represents a first time unit, for example hours, and the second dimension represents a different time unit, for example minutes. Such watches are from the EP-A-1 195 662 known.
  • the problem solving clock is characterized by the features of the independent claim.
  • a clock is proposed with at least one display element to which a time interval is assigned and which can be changed from a first display state to a second display state, wherein a drive segment rotatably mounted about an axis of rotation and an output wheel interacting with the drive segment are provided for changing the display element wherein the output gear is changed by the rotation of the display element, and wherein the drive segment is configured so that it can cooperate drivingly with the output gear during a complete rotation about the rotation axis only during a part of the movement.
  • Each display element has a display area that changes smoothly and progressively from the first to the second display state during the time interval associated with the display element.
  • This drive principle of the clock according to the invention enables in a very simple way a scale separation for different time intervals, for example hours and minutes, but also a scale separation for the same time intervals. Since the movement of the drive segment via the output gear is used to change the display element, a spatial separation of the visualization of time intervals can be realized in a simple manner, resulting in a large variety of design options for the display of time. In addition, since the drive segment during operation can co-operate drivingly with the driven wheel only over part of its revolution, the representation of different time intervals and, in particular, also time intervals of different lengths is possible in a very simple manner.
  • the display area of the display element changes uniformly and progressively over the entire assigned time interval. It is thus no jumping or switching from the first to the second display state, but the display area changes continuously or quasi-continuously starting with the first display state at the beginning of the time interval. Only at the end of the Time interval reaches the progressively changing display area the appearance, which corresponds to the second display state. The change of the display state is thus uniformly distributed over the entire time interval.
  • the drive segment is part of a rotatably mounted drive wheel.
  • the drive segment is designed as a toothed segment and the output gear designed as a gear, so that the toothed segment intervenes temporarily in a rotation about the axis of rotation in the output gear.
  • This gearing is advantageous because the time interval during which the drive segment drives the output gear can be adjusted very precisely.
  • a plurality of display elements are provided, wherein for each display element exactly one output gear is provided, which can cooperate only with exactly one drive segment, and wherein each drive segment is different from the output wheels. So there are no driven wheels provided, which also serve as drive segments for other output wheels.
  • the z. B. in serial counters are used, in which the multiple rotation of a display point has the further jumping of the next higher display result. Such a transmission from one display element to the next is not provided here.
  • each output gear is unconnected to the other output wheels.
  • the driven wheels are not connected to each other and can thus be operated independently of each other, i. the rotation of a driven wheel does not necessarily result in the turning of another driven gear.
  • An advantageous embodiment is when the clock has a drive segment, which successively in a revolution about the axis of rotation interacts with several output wheels.
  • This refinement advantageously makes it possible to successively change a plurality of display elements from the first display state to the second display state with one drive segment. So it is possible, for example, that each display element requires exactly one hour to get over its associated output gear from the first to the second display state.
  • the drive segment engages the output gear of the subsequent display element and changes it over the next hour from the first to the second display state.
  • a separate drive segment is provided for each output gear, which is different in each case from each output gear.
  • This embodiment is particularly advantageous when the greatest possible freedom of design with respect to the display elements is desired.
  • the output gears are unconnected in the sense that no output gear also serves as a drive segment for another output gear.
  • all drive segments are arranged so that they rotate synchronously.
  • This can for example be realized so that all drive segments are arranged on a common axis or are connected to each other via Verzzahnept or combinations of these two possibilities.
  • Particularly preferred exactly one drive is provided with which all drive segments are drivable.
  • this drive is an electric drive, but it is also possible to design the drive mechanically, for example as a spring or flywheel drive.
  • To drive all drive segments with only one drive has the advantage of a low-complexity apparatus design and the advantage, especially in an electric drive, low energy consumption.
  • An advantageous measure is that a lock is provided for each driven wheel or display element, which only allows a rotation of the driven gear when driving the drive segment with cooperates named output gear. This measure ensures that each display element can only change if the driven wheel assigned to it is being driven by the drive segment.
  • each display element is configured such that, in the change from the first display state to the second display state, the display surface of the display element changes color progressively. This embodiment enables a particularly simple reading of the clock.
  • a preferred variant is that all display elements together in the operating state form a progressively changing surface.
  • the time intervals associated with the display elements are all the same length.
  • the clock according to the invention which is designated in its entirety by the reference numeral 1 in the drawing figures of the exemplary embodiments, comprises at least one display element 5 (eg. Fig. 2 ) which is changeable from a first display state to a second display state.
  • a rotatably mounted about a rotational axis A drive segment 2 and cooperating with the drive segment 2 output gear 3 is provided, wherein the output gear 3 changes the display element 5 by its rotation.
  • the drive segment 2 is designed so that it can cooperate drivingly with the output gear 3 during a complete revolution about the rotation axis A only during part of the movement.
  • the drive segment 2 is in this embodiment part of a rotatably mounted about the rotation axis A drive wheel 4.
  • the drive segment 2 is formed here as a toothed segment 2, is provided on the circumference of the drive wheel 4 and extends over an arc length L corresponding to an angle ⁇ . If the radius r of the drive segment 2 is known, then the arc length L of the drive segment 2 is uniquely determined by the angle ⁇ .
  • the drive wheel 4 and thus the sector gear 2 is characterized by a in Fig. 1 not shown drive 10 (eg. Fig. 6 ) in a uniform rotational movement, the in Fig.1 indicated by the arrow D1.
  • the drive wheel 4 or the toothed segment 2 is driven in such a way that it executes exactly one complete revolution in a predetermined time period with a constant angular velocity. With an exemplary character here is the mentioned time period twelve hours, so half a day.
  • Fig. 1 the output gear 3 is shown, which in its rotation, which is indicated by the arrow D2, the in Fig. 1 Not shown display element 5 moves from a first display state to a second display state.
  • the output gear 3 is designed here as a gear.
  • the defined by the angle ⁇ arc length L of the drive segment 2 is dimensioned so that the drive segment 2 engages during a complete rotation about the rotation axis A only over part of this movement in the output gear 3 and this set in rotation. During the rest of the rotational movement of the drive segment 2, this is not in engagement with the output gear 3, so that then the output gear 3 is not rotated.
  • the part of the movement during which the drive segment 2 drivingly cooperates with the output gear 3 corresponds exactly to a predetermined time interval.
  • the output gear 3 makes the output gear 3 in the time interval in which it is driven by the drive segment 2 - in this example, in the time interval of one hour - for example, exactly half a turn or exactly one turn.
  • This can be adjusted via the diameter d of the output gear 3. If the output gear 3 z. B. during the time interval in which it is driven to make exactly one revolution, so its diameter d is to be such that the circumference of the driven gear 3 is the same size as the arc length L of the drive segment 2. If the output gear 3 in said time interval make only half a turn, so its diameter d is so to be twice as large as the arc length L of the drive segment 2.
  • a lock 6 which allows a rotation of the output gear 3 only when the drive segment 2 drivingly cooperates with the output gear 3.
  • the lock comprises a lever 61 which is rotatable about a pin 62, pivotally or elastically arranged bendable.
  • the lever 61 is spring-loaded (not shown) or made of an elastic material, for example designed as a leaf spring.
  • the lever 61 is arranged so that a locking element 63 provided at its end cooperates with the output gear 3 such that rotation of the output gear 3 is prevented.
  • the blocking element 63 engages in the toothing of the driven gear 3 and thereby blocks it. This position, in which the lever 61 is held by its spring load or by its elastic properties, is in Fig. 1 shown dashed.
  • a control segment 64 is provided, which is rotatably connected to the drive segment 2 and is rotatably mounted about the same axis of rotation A.
  • the control segment 64 is provided on the outer circumference of a control disk 66 which rotates synchronously with the drive segment 2 and the drive wheel 4, respectively.
  • the lever 61 rests with a cam 65 provided on it on the outer circumference of the control disk 66.
  • the control segment 64 is arranged relative to the drive segment 2 such that the control segment 64 occurs in its rotation about the axis of rotation A into engagement with the cam 65 precisely when the drive segment 2 begins to engage the driven wheel 3. This time is in Fig. 1 shown.
  • the control segment 64 As soon as the drive segment 2 no longer engages the output gear 3 as the revolution progresses, the control segment 64 has also rotated so far that it no longer interacts with the cam 65. Due to the spring load or due to its elastic properties, the lever 61 then returns to the position shown by dashed lines, in which the blocking element 63 engages the driven wheel 3 and prevents further rotation of the driven wheel 3.
  • the barrier 6 in such a way that the output gear 3 is already released shortly before the engagement of the drive segment 2 and / or is only blocked shortly after the drive segment 2 no longer interacts with the driven gear 3.
  • the drive segment 2 and the output gear 3 may be made of plastic, for example, for. B. from polyoxymethylene (POM).
  • POM polyoxymethylene
  • a commercially available gear can be used, whose radius corresponds to the desired radius r of the drive segment 2. From this gear are removed in a material-removing machining step, for example by milling, the teeth along part of the circumference and left only where the drive segment 2 should be located. In the embodiment according to Fig. 1 Thus, the toothing is left on the outer circumference only over the angular range of the angle ⁇ of 30 degrees, while the toothing is removed at the remainder of the circumference.
  • Fig. 1 Drive 10 To drive the drive wheel 4 and the drive segment 2 is the in Fig. 1 Drive 10, not shown, is provided which, via a shaft or via another coupling means, for example a toothed belt or a toothed disk, displaces the drive segment 2 into a rotational movement about the axis of rotation A.
  • the drive 10 may be formed mechanically, for example, for. B. in the form of a spring mechanism.
  • the drive 10 is designed electrically, in particular as an electric motor, for example as a synchronous motor.
  • the drive may also be a stepper motor, which allows at least a quasi-continuous rotational movement of the drive segment 2.
  • the drive segment 2 is also not necessary for the drive segment 2 to be part of a drive wheel 4.
  • the drive segment 2 is designed as a circular segment or in any other form. It is only important that the drive segment 2 has an arc length L, over which it interacts with the output gear 3 during a revolution in a time interval of predetermined length.
  • the output gear 3 is designed as a gear, it may be advantageous, at the points of the circumference of the driven gear 3, at which the engagement of the drive segment 2 begins to remove one or more teeth from the periphery of the driven gear 3, so that the drive segment 2 undisturbed can engage in the driven gear 3 and blocking when intervention is reliably avoided.
  • This measure is possible because the engagement of the drive segment 2 always begins at the same point or the same place on the circumference of the driven gear 3. If the output gear 3 is rotated by exactly one revolution during one revolution of the drive segment 2, there is exactly one point on the circumference of the driven gear 3, at which the engagement of the drive segment always begins. If the output gear only makes half a turn during one revolution of the drive segment 2, there are exactly two points on the circumference of the output gear 3 where the engagement begins.
  • operative connection between the drive segment 2 and the output gear 3 is based on a toothing.
  • any operative connection which enables a drive of the output gear 3 through the drive segment 2 is suitable, for example via rollers or other friction-coupled active partners.
  • Fig. 2 shows a schematic representation of a first embodiment of an inventive clock 1.
  • this clock 1 a total of twelve display elements 5 are provided which are arranged in a circle on a fixed - that is not rotatable - disc 7, comparable to the twelve digits on a conventional clock with analog display.
  • Fig. 3 a single such display element 5.
  • Each display element 5 is assigned a separate output gear 3 in order to change the respective display element 5 from a first display state to a second display state.
  • the twelve output gears 3 are arranged equidistantly on a circular line about the axis of rotation A around.
  • Each output gear 3 is in operative connection with its associated display element 5, such that each rotation of the driven gear 3 causes a change in its associated display element 5.
  • the drive segment 2 rotatably mounted about the rotation axis A has an arc length L which corresponds to an angle ⁇ of 30 degrees.
  • the in Fig. 2 not shown drive 10 rotates in the operating state, the drive segment 2 at a constant angular velocity, which is so dimensioned that the drive segment 2 makes in a period of time in this example twelve hours exactly one complete revolution.
  • Fig. 3 shows a single display element 5 of the first embodiment.
  • the display element 5 comprises a disc-shaped display surface 51, which is fixed and thus non-rotatably mounted on the disc 7.
  • the display surface 51 has a radially extending slot 53 extending here from the center of the display surface 51 to its edge.
  • an indicator wheel 54 is provided, which is rotatably mounted and is in operative connection with the respective driven gear 3, which is associated with this display element 5, so that rotation of this driven gear 3 causes rotation of the display wheel 54.
  • a slotted color disc 52 Rotationally connected to the indicator wheel 54, is a slotted color disc 52, which is arranged so that it pushes progressively through the slot 53 in the display surface 51 during a rotation of the indicator wheel 54, thereby covering the display surface 51 progressively. It is understood that the color wheel 52 has a different color and / or a different pattern than the display surface 51. Furthermore, a recess 55 is provided on the display element 5, in which a blocking element 63 can engage.
  • the color wheel 52 fixed so not rotatable, can be arranged and the display surface 51 rotatably connected to the display wheel 54 is connected. It is essential only the relative rotational movement between the display surface 51 and the color wheel 52nd
  • a lock 6 is further provided for each output gear 3 and for each display element 5, which only allows rotation of the driven gear 3 and cooperating with the driven wheel 3 indicator wheel 54 when the drive segment 2 is drivingly connected to this output gear.
  • an outer ring 71 is provided, which is fixed with respect to the disc 7.
  • a rod-shaped or spherical locking element 63 is provided for each display element 5, which is spring-loaded.
  • the blocking elements 63 are each supported by springs 631 on the outer ring 71.
  • the locking elements 63 each engage in the recesses 55 of the display elements 5 and thus secure them against undesired rotation.
  • control segment 64 which functions in a similar manner as in connection with Fig. 1 was explained.
  • the control segment 64 is non-rotatably connected to the drive segment 2 or it runs synchronously with the drive segment 2 about the axis of rotation A.
  • the control segment 64 moves against this the driven wheel 3 associated locking element 63 against the force of the spring out of the recess 55, so that the output gear 3 can rotate and the change of the associated display element 5 is possible.
  • the drive segment 2 Since, as already mentioned, the drive segment 2 has an arc length L which corresponds to an angle of 30 degrees and for a complete revolution (360 degrees) requires a period of 12 hours, the drive segment is successively with each output gear exactly one hour in a driving operative connection , Since the rotational movement of the output gear 3 causes a progressive change in the associated display element 5, serve the display elements 5 in this embodiment as minute wheels for visualization of minutes.
  • Fig. 4 shows for clarity of the first embodiment, the display of the clock at time 2 30th
  • the numbers of one to twelve are provided in addition to the display elements 5, which indicate which hour the respective display element 5 is assigned.
  • the clock 1 operates as follows:
  • the drive segment 2 rotates at constant angular velocity about the axis of rotation A, requiring exactly twelve hours for a complete revolution.
  • the drive segment 2 comes successively in operative connection with all twelve driven wheels 3 for exactly one hour, because the arc length of the drive segment corresponds to an angle ⁇ of 30 degrees.
  • the drive segment 2 rotates this driven gear 3 by exactly one revolution.
  • the indicator wheel 54 which is in operative connection with this output gear 3
  • the color wheel 52 is pushed more and more over the display surface 51 during this hour.
  • the display element 5 changes from its first display state, in which the color wheel 52 does not cover the display surface 51 in its second display state, in which the color wheel 52 completely covers the display surface 51.
  • This hour changing surface which is constantly increasing due to the increasing coverage by the color wheel, is thus a visualization of the minutes of this hour.
  • Fig. 2 shows a state in which the drive segment 2 just leaves the operative connection with a driven gear 3 - namely, which corresponds to the hatched display element 5 - and begins to interact with the following driven gear 3 in operative connection. Accordingly, the hatched display element 5 has just been completely changed from the first to the second display state, while the subsequent display element 5 is still fully in the first display state.
  • Fig. 4 shows the display of the clock at 2:30 clock.
  • the two display elements 5 next to which the numbers 1 and 2 stand for the corresponding hours have already been completely changed to the second display state.
  • the display element 5 next to the number 3 has just been changed in half from the first to the second display state. Consequently, the hour associated with this display element has only half passed.
  • the clock 1 is reset by a fast reverse run in the display state in which all the display elements 5 are in their first display state.
  • the drive 10 changes the direction of rotation of the drive segment 2 and allows it to run back counter to the direction indicated by the arrow D1 quickly. This return can be done within a few seconds.
  • the initiation of the return, so the switching of the drive 10 can be triggered for example by a radio signal, such as the DCF77 radio clock signal.
  • a radio signal such as the DCF77 radio clock signal.
  • Fig. 5 shows a schematic representation of a second embodiment of an inventive clock 1.
  • Fig. 6 shows a view of the second embodiment from the viewing direction B in Fig. 5 ,
  • the display elements 5 each comprise a band 52a for visualizing the time. This type of ad is by analogy the same as the one already quoted EP-A-1 195 662 is disclosed.
  • twelve display elements 5 are provided, each of which is assigned a time interval of one hour.
  • each display element 5 each has a band 52a, which moves during the hour associated therewith by a predetermined distance S.
  • a separate drive segment 2 and a separate output gear 3 is provided for each display element 5 respectively.
  • the drive segments 2 are each designed as part of a drive wheel 4. All drive segments 2 and all drive wheels 4 are mounted on a common shaft 21 which can be rotated by the preferably electric drive 10 in rotation about the axis of rotation A.
  • a drive segment 2 is provided on the common shaft 21.
  • Each display element 5 comprises a band 52a, a large deflection roller 56, a plurality of small deflection rollers 57 and the indicator wheel 54, which interacts with the output gear 3.
  • the distance S between the reversal points U1 and U2 is the distance which the band 52b has to cover in the time interval assigned to it-in this case, in the hour assigned to it.
  • the belt 52a is configured as an endless belt. It runs over the large deflection roller 56 and over the five small deflection rollers 57 back to the large deflection roller 56 Fig. 6 are the ribbons 52a not shown for reasons of clarity, but only the pulleys 56 and 57th
  • each band 52a is four times as large as the distance S between the two reversal points U1 and U2, over which the band 52a serves as a display surface.
  • the band 52a has two different colors and / or two different patterns. After each length corresponding to the distance S, the color and / or the pattern of the band changes. If one were to cut open the strip 52a and lay it out lengthwise, it has four equally long successive sections whose length corresponds in each case to the distance S.
  • the first and third portions have a first color and pattern, respectively, while the second and fourth portions have a second color different from the first and / or a second pattern different from the first pattern.
  • all four sections of length S have different colors and / or different patterns.
  • the large pulley 56 is in operative connection with the indicator wheel 54, such that rotation of the indicator wheel 54 also results in rotation of the pulley 56.
  • the indicator wheel 54 is also in operative connection with the output gear 3, so that a rotation of the driven gear 3 causes a rotation of the indicator wheel 54 and thus the large guide roller 56.
  • the driven wheel 3 is driven by the drive segment 2 during a defined time interval as already described above.
  • the drive segment 2 has an arc length corresponding to an angle ⁇ of 30 degrees, so that the drive segment 2 during one complete revolution only over one twelfth of this rotation drivingly interacts with the output gear 3.
  • the drive segment 2, the associated output gear 3, the indicator wheel 54 and the large guide roller 56 can be coupled to each other via ratios or translations. These couplings must be dimensioned so that the belt 52a is transported exactly a distance of length S in the time interval in which the driven wheel 3 assigned to it is driven by the drive segment 2.
  • the distance S between the reversal points U1 and U2 is 300 mm, then the total length of the belt 52a is 1200 mm.
  • the drive segment 2 rotates by 30 degrees.
  • the output gear 3 rotates by 240 degrees.
  • This movement of the driven gear 3 rotates the indicating wheel 54 720 degrees.
  • the large pulley is rotated by 576 degrees, which corresponds to about 1.6 revolutions of the large pulley 56.
  • the big pulley has a radius of 30 mm. As a result, it advances the belt 52a for about 1.6 revolutions by 300 mm, which corresponds to the distance S.
  • the second embodiment operates in the operating state as follows.
  • the drive 10 rotates the common shaft 21 with the drive wheels 4 or drive segments 2 thereon at a constant angular speed, so that the shaft 21 and thus the drive segments 2 make exactly one revolution each in the 12-hour period.
  • At 0.00 o clock 1 is in a display state in which all the display elements 5 are in their first display state.
  • Each band 52a shows the same first color between the deflection points U1 and U2, so that the observer is shown by the twelve parallel juxtaposed bands 52a a uniformly colored surface. For each band 52a, the color change to the next portion of the band 52a having a second color is at the lower reversal point U1 (and, of course, at the upper reversal point U2).
  • the clock 1 continues in the same way, with the result that in the course of the next 12 hours, the display area band 52a for band 52a changed color again and after these twelve hours again uniformly has the first color.
  • the clock 1 is again in the same display state after 24 hours as at the beginning of the example described.
  • no reset of the clock is necessary in this embodiment.
  • Fig. 6a is still a measure illustrated, which is particularly advantageous in view of the long-term accuracy of the clock 1 and the display. According to this measure, a slip between the band 52a and the deflection roller 56 thereby avoided that a positive connection between the belt 52a and the guide roller 56 is realized.
  • the band 52a is provided along its edge with a perforation and accordingly has along this edge a plurality of holes 521, which are arranged at regular intervals.
  • the pulley 56 has sipes or nubs 561 along its circumference, which are arranged and configured to engage the holes 521 of the belt 52a so as to avoid slippage of the belt 52a and increase the long-term accuracy.
  • the band 52a is made as a plastic band or as a metal band or from a metal foil. It is understood that the perforation or holes 521 may also be provided along both edges of the band 52a. In this case, of course, on the guide roller 56 two rows of pins or nubs 561 are provided.
  • each band 52a may also have more than four sections, each changing color. However, each section of the band 52a should have a length corresponding to the distance S between the reversal points U1 and U2.
  • each band 52a is bicoloured, wherein in the initial position of the color change of the belt 52a is located at the reversal point U1. During the time interval associated with the respective band 52a, the color change moves from the reversal point U1 to the reversal point U2, whereby the color of the band 52a appears continuously on the display changes. When all the bands 52a have changed color, they are returned to their original position by a fast reverse run so that the color change is again at the reversal point U1.
  • a stop 522 is fixed, which extends for example as a rod-shaped element across the belt 52a.
  • This stop 522 serves to ensure that the band 52a each has a well-defined end position. If, for example, the color change of the band in the time interval assigned to it moves from the reversal point U1 to the reversal point U2, the stop 522 abuts against the deflection roller 57 at the end of this time interval, as shown in FIG Fig. 6b is illustrated with the solid representation.
  • FIG. 7 shows a schematic representation of the third embodiment.
  • each drive segment 2 is part of a drive wheel 4, that is, there are twelve drive wheels 4 are provided.
  • the drive segments 2 are shown on the drive wheels 4 each as a black triangle. All drive wheels 4 and all output gears 3 are each designed as gears, as will be described in more detail.
  • Each display element 5 has a display disk 51 a.
  • the display discs 51 a are formed as circular discs and each have two distinguishable halves. This can be realized, for example, in such a way that each indicator disk 51 a comprises two semicircular surfaces of different color and / or with a different pattern, wherein the coloring or the patterning of the semicircular surfaces does not have to extend over the entire surface.
  • the twelve drive wheels 4 with the drive segments 2 are - like this Fig. 7 clarified - in pairs with each other via their teeth in operative connection.
  • the drive wheels 4 here have a dual function: on the one hand, they rotate over part of their movement by means of the drive segments 2 their respective output wheels 3, and on the other they drive continuously adjacent to them and each constantly in engagement drive wheel 4 at.
  • This in Fig. 7 according to the illustration the leftmost drive wheel 4 provided with the arrow D1 is driven by the drive 10 to rotate at a constant angular speed.
  • This drive wheel 4 is in constant engagement with the drive wheel 4 adjacent to it, which in turn is in engagement with the drive wheel 4 adjacent to the other side, etc.
  • the drive according to the leftmost drive wheel 4 is rotated by the drive 10, so turn all other drive wheels 4 synchronously and with the same angular velocity.
  • Fig. 8 a plan view of a drive wheel 4 and the driven wheel 3 associated therewith.
  • the associated display element 5 is not shown.
  • Fig. 9 is a section through the drive wheel 4 and the driven gear 3 along the section line IX-IX in Fig. 8 shown, in Fig. 9 However, in addition, the display element 5 is shown.
  • the drive wheel 4 has in principle two serrations (see Fig. 9 ).
  • the toothing of the drive segment 2 which extends only over the angle ⁇ , which is 60 degrees in this embodiment. Otherwise is in the upper Area provided no toothing along the circumference, for example, the toothing has been removed outside the area enclosed by the angle ⁇ along the circumference.
  • the drive wheel 4 has a second toothing 41, which extends over the entire circumference of the drive wheel 4. This second toothing 41 engages in the second toothing 41 of the adjacent drive wheel 4. In this way, the rotation caused by the drive 10 is transmitted to all drive wheels 4.
  • only one drive 10 is provided in this embodiment, which drives all drive wheels 4 and thus all drive segments 2.
  • Fig. 9 Also in Fig. 9 is shown one of the display elements 5 with the indicator disk 51 a.
  • the indicator disk 51 a is rotatably connected via an axle 58 to the driven gear 3.
  • the arc length L of the drive segment 2 which extends over an angle ⁇ of 60 degrees, as large as half the circumference of the driven gear 3, that is, in the time interval in which the drive segment 2 drivingly with the driven gear 3rd cooperates, makes the output gear 3 and thus the indicator disc 51 a exactly half a turn.
  • the translation or the reduction between the drive wheel 4 and the output gear 3 is therefore 1 to 3.
  • Fig. 11 shows a plan view of the clock 1 with the cover 9.
  • the cover 9 has a wavy or serpentine-shaped gap 91, which serves as a display surface of the clock 1.
  • the cover 9 allows only a view of the wavy boundary area between the display discs 51 a.
  • the cover is provided with a time scale 92. As time increases, the area of the wavy line 91 progressively changes color from left to right, indicating the time - in Fig. 11 it is 03.30 clock.
  • Fig. 7 is the clock 1 in the display state before the beginning of the time period - here twelve hours - shown.
  • the drive 10 rotates the drive wheels 4 at a constant angular velocity, which is such that each drive wheel 4 makes exactly one revolution in twelve hours. Since the angle ⁇ of each drive segment 2 here in this embodiment is 60 degrees, each display element 5 is assigned a time interval of two hours for half a revolution. Since only one quarter (90 degrees) of the respective display disk 51 a is visible through the cover 9, the visible part needs exactly one hour to completely change its color.
  • the display state in Fig. 7 corresponds to 11.30 clock or 23.30 clock.
  • Fig. 12 the display of the clock 1 is shown in a simplified representation for four different times, each indicated on the left of the figure, namely 11:30, 12:00, 13:00 and 14:00.
  • the hour represented by the respective display disk 51 a is indicated by the number in the circle.
  • the time scale 92 shown in each case the time scale 92 shown.
  • the cover 9 is not shown for reasons of clarity. Visible to the observer is only the part of the display discs 51 a, which is located below the time scale 92.
  • the display according to the left most indicator disc 51 a must first rotate 45 degrees before the color change in the gap 91 of the display begins to be visible.
  • the area of the time scale 92 associated with this indicator disc no longer changes.
  • the next drive wheel 4 begins to intervene in the associated output gear 3. This process continues until successively all the display disks 51 a have made a half turn, which is the case twelve hours after the beginning.
  • the adjacent display disks 51 a thus rotate overlapping, ie the subsequent display disk 51 a begins its rotation already one hour before the previous display disk 51 a has completed half their turn.
  • Fig. 10 is the clock 1 without cover 9 for the time 3.30 clock shown with the associated positions of the drive segments 2, the driven wheels 3 and the display elements. 5

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP09154831A 2008-04-10 2009-03-11 Montre dotée d'un état affichage régulier et continu Withdrawn EP2109017A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09154831A EP2109017A1 (fr) 2008-04-10 2009-03-11 Montre dotée d'un état affichage régulier et continu

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Application Number Priority Date Filing Date Title
EP08154328 2008-04-10
EP09154831A EP2109017A1 (fr) 2008-04-10 2009-03-11 Montre dotée d'un état affichage régulier et continu

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985998A (en) * 1955-11-14 1961-05-30 Holzner Adolf Cyclometer, counter or the like
DE2608457A1 (de) * 1975-03-03 1976-09-16 Kurt Ingendahl Uhr
US4211025A (en) * 1978-10-06 1980-07-08 Metz George F Biorhythm cycle display apparatus
EP1195662A1 (fr) 2000-10-05 2002-04-10 Heinz Mutter Montre et méthode pour représenter le temps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985998A (en) * 1955-11-14 1961-05-30 Holzner Adolf Cyclometer, counter or the like
DE2608457A1 (de) * 1975-03-03 1976-09-16 Kurt Ingendahl Uhr
US4211025A (en) * 1978-10-06 1980-07-08 Metz George F Biorhythm cycle display apparatus
EP1195662A1 (fr) 2000-10-05 2002-04-10 Heinz Mutter Montre et méthode pour représenter le temps

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