• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a drive device with a drive element which is rotated step by step about a rotation axis 11 by a certain angular range, of which a rotary drive wheel 8 coaxially arranged at a certain distance from the drive element can be driven rotatably about the rotation axis 11 via a clutch, and by the rotary drive wheel 8 a display element is drivable in steps. The coupling has a coupling element which is arranged in the distance between the drive element and the rotary drive wheel 8 and which is connected to the drive element in a rotationally fixed manner and is arranged to be axially displaceable thereto. With one or more rolling elements which protrude into recesses on the end face of the rotary drive wheel 8 facing the drive element with a part of their diameter and with a part of their diameter protruding from the recesses into recesses formed on the end face of the coupling element facing the rotary drive wheel 8. The depressions have ramp-like sidewalls in one or both directions radially circumferential to the axis of rotation 11 and the coupling element is acted upon by a certain spring force against the rotary drive wheel 8. Furthermore, the rotary drive wheel 8 can be rotated manually.
    公开号:CH715047A2
    申请号:CH00593/19
    申请日:2019-05-03
    公开日:2019-12-13
    发明作者:Lehmann Steve
    申请人:Lange Uhren Gmbh；
    IPC主号:
    专利说明:

    Description: The invention relates to a drive device with a drive element that is rotated step by step about a rotation axis by a certain angular range, of which a rotary drive wheel coaxially arranged at a certain distance from the drive element can be driven rotatably about the axis of rotation via a clutch, and by the rotary drive wheel a display element is drivable in steps.
    Such drive devices are e.g. known to gradually advance digital time displays of clocks. The rotary drive wheel thereby drives a direct or indirect step-by-step drive of a display element of the watch. If the display of the time display does not correspond to the current time, it must be possible to correct the time display.
    The object of the invention is to provide a drive device of the type mentioned, which allows manual correction of the display element with a simple structure.
    This object is achieved according to the invention in that the coupling has a coupling element arranged in the distance between the drive element and the rotary drive wheel, which is connected to the drive element in a rotationally fixed manner and is arranged axially displaceably therewith, with one or more rolling elements which are in recesses on the The drive element facing end face of the rotary drive wheel protrude with a part of its diameter and fully or with a part of its diameter protruding from the recesses protrude into recesses formed on the end face of the coupling element facing the rotary drive wheel, the recesses ramping in one or both directions radially circumferential to the axis of rotation have widening side walls and the coupling element is acted upon by a certain spring force against the rotary drive wheel, and the rotary drive wheel can furthermore be driven in a manually rotatable manner.
    This design takes place with a manual rotation of the rotary drive wheel, a relative rotation of the rotary drive wheel with respect to the non-rotatable drive element at this moment. As a result, the rolling elements roll along the ramp-like side walls of the recesses of the coupling element and move the coupling element away from the rotary drive wheel from its normal position against the spring force. When the rotary drive wheel is rotated further, the rolling elements reach the area of the depressions of adjacent depressions and roll there to the bottom of these adjacent depressions.
    As a result, the coupling element moves back into its normal position, in which the rotary drive wheel is coupled to the drive element via the coupling. Since the display element can be driven by the rotary drive wheel, it is also switched one step further.
    The use of rolling elements, which can be rolling cylinders or balls, requires only small forces for manual relative rotation of the rotary drive wheel due to rolling friction.
    In addition, the rolling elements allow rotation of the rotary drive wheel and thus a further switching of the display element in both directions of rotation, that is, a forward switching and a reverse switching of the display element.
    In a simple design can be arranged for axial displacement and for the rotationally fixed connection of the coupling element with the drive element on the drive element to the rotary drive protruding, extending parallel to the axis of rotation guide pin which project axially displaceably in corresponding guide recesses of the coupling element.
    Here, the coupling element can be space-saving, a coupling bushing which can be arranged axially displaceably and freely rotatably on an axis coaxial to the axis of rotation, on which the drive element or the rotary drive wheel are also freely rotatable.
    Close the radially circumferentially arranged recesses to each other without spacing, so after rolling out a rolling element from a recess rolling in immediately into the adjacent recess and thus a re-coupling of the drive element and rotary drive wheel.
    However, it is also possible that the radially circumferentially arranged depressions are formed at a distance from one another.
    If the depressions have a V-shaped cross section, the rolling elements inevitably roll to the bottom of the V-shaped depression and align the drive element and the rotary drive wheel exactly with one another, so that the display element is also positioned exactly.
    The two side walls of the recesses can be at an angle of between 20 ° and 178 ° to each other.
    In a preferred application, the drive element can be rotatably driven by a clockwork step by step and a display element of a clock can be driven by the rotary drive wheel, wherein the display element can be a display ring of a digital time display.
    CH 715 047 A2 [0016] In a simple manner, the drive element can be a Maltese cross, in whose radial slots switching pins of a switching disc driven continuously or step by step by the clockwork engage for the stepwise rotary drive of the Maltese cross.
    For manual rotary drive of the rotary drive wheel, one or more correction pins can be arranged on the rotary drive wheel and extend parallel to the axis of rotation and can be acted upon by the manual indexing mechanism to rotate the rotary drive wheel.
    An embodiment of the invention is shown in the drawing and is described in more detail below. It shows
    Fig. 1 a top perspective view of a drive device with an hour ring of a date display of a clock Fig. 2 2 shows a perspective bottom view of the drive device according to FIG. 1 Fig. 3 a partial view of the drive device of FIG. 1 in cross section in the engaged normal position Fig. 4 a partial view of the drive device of FIG. 1 in cross section in the engaged normal position in a section rotated by 90 ° to FIG. 3 Fig. 5 a partial view of the drive device of FIG. 1 in cross section in the partially disengaged position Fig. 6 a partial view of the drive device of FIG. 1 in cross section in the disengaged position.
    In Fig. 1, an hour ring 1 of a clock, not shown, is rotatably mounted. As can be seen in FIG. 2, for the hourly step-by-step rotary drive of the hour ring 1, a switching mechanism 2 is rotatably driven step by step around a first axis of rotation 3 at one revolution per hour.
    At a radial distance from the first axis of rotation 3, a switching pin 4 extending parallel to the first axis of rotation 3 is arranged on the switching disc 2, which engages once per revolution of the switching disc 2 in a radial slot 6 of a four radial slots 6 Maltese cross 5 and the Maltese cross 5 rotates 90 ° further.
    The Maltese cross 5 forms a drive element of a drive device through which a drive element forming a drive element rotating drive wheel 8 is rotatably driven in hourly steps.
    Maltese cross 5 and rotary drive wheel 8 are arranged at a certain distance from each other and rotatable about a second axis of rotation 11.
    The rotary drive wheel 8 engages in the internal toothing of an hour tooth ring 9 and rotates it by an angle of 30 ° per hour. The hour ring 1 is fixed coaxially to the hour tooth ring 9 by means of screws 10, so that the hour ring 1 is rotated one hour further per hour.
    The watch has on the observer side in front of the hour ring 1 a dial, not shown, which has a window in the position of the hour to be displayed, through which an observer can read the hour to be displayed in each case.
    The clutch 7 has a coupling sleeve 12 which is arranged axially displaceably in the distance between the Maltese cross 5 and rotary drive wheel 8 on an axis 13 coaxial with the second axis of rotation 11.
    On the axis 13, the Maltese cross 5 is fixed and the rotary drive wheel 8 is freely rotatable.
    Diametrically opposed to the second axis of rotation 11, two guide pins 14 are fastened to the Maltese cross 5, which protrude parallel to the second axis of rotation 11 towards the rotary drive wheel 8 and protrude into corresponding guide recesses 15 in the coupling bush 12. As a result, the coupling bush 12 is connected to the Maltese cross 5 in a rotational test, but can move axially to the axis 13.
    On the rotary drive wheel 8 to the Maltese cross 5 open conical recesses 16 are formed, in which rolling elements forming balls 17 are arranged, which protrude with a part of their diameter from the recesses 16.
    The recesses 16 and balls 17 axially opposite four recesses 18 are formed on the end of the coupling sleeve 12 facing the rotary drive wheel 8, which extend evenly distributed on the circumference groove-like radially and have a V-shaped cross section. The side walls 19 of the depressions 18 enclose an angle of approximately 140 ° between them.
    The coupling bush 12 is acted upon by a spring element 20 with a certain spring force via the balls 17 against the rotary drive wheel 8. 3 and 4, the balls 17 engage both in the recesses 16 and in the recesses 18, so that the Maltese cross 5 and the rotary drive wheel 8 are non-positively connected to one another via the coupling bush 12.
    CH 715 047 A2 If the Maltese cross 5 is rotated through the indexing disk by 90 °, then the rotary drive wheel 8 is also rotated by 90 °, which causes the hour ring 9 to rotate further by 30 ° and thus the hour ring 1 to rotate further drives an hour's step.
    On the rotary drive wheel 8, four correction pins 21 are arranged in a radial distance from the second axis of rotation 11 evenly distributed on the circumference parallel to the second axis of rotation 11. By means of a manually operated indexing mechanism, not shown, one of the correction pins 21 can be acted upon in such a way that the rotary drive wheel 8 is rotated by 90 °. Since the coupling bushing 12 cannot rotate with it, the balls 17 roll over the spring force of the spring element 20 along the side walls 19 of the depressions 18 up to their mouths (FIG. 5) and reach a region of a distance 22 between two depressions 18. This overcomes the non-positive coupling and the balls 17 can roll back into the adjacent recess 18 when the rotary drive wheel 8 is turned further.
    By manually rotating the rotary drive wheel 8, a manual correction of the position of the hour ring 1 is carried out at the same time by one hour.
    Reference symbol list [0034]
    hour ring
    Switch disc first axis of rotation
    switch Probe
    Maltese cross
    radial slot
    clutch
    rotary drive
    Hours toothed ring
    Screw the second axis of rotation
    Kupplungsbuchse
    axis
    spigot
    guide recesses
    recesses
    roll
    wells
    side walls
    spring element
    Korrigierstifte
    distance
    权利要求:
    Claims (10)
    [1]
    claims
    1.Drive device with a drive element which is rotated step by step about a rotation axis (11), from which a rotary drive wheel (8) coaxially arranged at a specific distance from the drive element can be driven rotatably about the rotation axis (11) via a clutch (7) and from the rotary drive wheel (8) a display element can be driven in a step-by-step manner, characterized in that the clutch (7) is a
    CH 715 047 A2 in the distance between the drive element and the rotary drive wheel (8) arranged coupling element which is connected to the drive element rotation test and is arranged axially displaceable thereto, with one or more rolling elements which in recesses (16) on the end face of the drive element facing Rotary drive wheel (8) protrude with a part of its diameter and fully or with a part of its diameter protruding from the recesses (16) into recesses (18) formed on the end face of the coupling element facing the rotary drive wheel (8), the recesses (18) have side walls (19) widening in a ramp-like manner in one or both directions rotating radially to the axis of rotation (11) and the coupling element is acted upon by a specific spring force against the rotary drive wheel (8) and the rotary drive wheel (8) can furthermore be driven in a manually rotatable manner.
    [2]
    2. Drive device according to claim 1, characterized in that the rolling elements are rolling cylinders or balls (17).
    [3]
    3. Drive device according to one of the preceding claims, characterized in that on the drive element to the rotary drive wheel (8) projecting, parallel to the axis of rotation (11) extending guide pins (14) are arranged, which are axially displaceable in corresponding guide recesses (15) of the coupling element protrude.
    [4]
    4. Drive device according to one of the preceding claims, characterized in that the radially circumferentially arranged depressions connect to each other without any problems.
    [5]
    5. Drive device according to one of claims 1 to 3, characterized in that the radially circumferentially arranged depressions (18) are formed at a distance (22) from one another.
    [6]
    6. Drive device according to one of the preceding claims, characterized in that the depressions (18) have a V-shaped cross section.
    [7]
    7. Drive device according to one of the preceding claims, characterized in that the drive element can be rotatably driven step by step by a clockwork and a display element of a clock can be driven movably by the rotary drive wheel (8).
    [8]
    8. Drive device according to claim 7, characterized in that the display element is a time display ring of a digital time display.
    [9]
    9. Drive device according to one of claims 7 and 8, characterized in that the drive element is a Maltese cross (5).
    [10]
    10. Drive device according to one of the preceding claims, characterized in that on the rotary drive wheel (8) one or more correction pins (21) extending parallel to the axis of rotation are arranged, which can be rotated by a manual indexing mechanism, the rotary drive wheel (8).
    CH 715 047 A2

    CH 715 047 A2


    CH 715 047 A2
    类似技术:
    公开号 | 公开日 | 专利标题
    DE3832514C1|1989-11-02|
    DE60314752T2|2008-04-10|Eternal or yearly calendar clock with a mechanism to display the number of days in the current month
    DE102005010604B3|2006-07-20|Clock, has hour wheels, where one hour wheel supports hour hand and is adjusted using rotatable spindle and other hour wheel or hour pipe supporting another hour hand is blocked by manually operatable blocking unit
    CH708473B1|2019-01-31|Clock to display the sun on a hemisphere and the moon phases.
    CH698310B1|2009-07-15|Check circuit.
    CH450967A|1968-05-15|Practice hand grenade
    DE2512416C2|1982-12-23|Date and day display for a clock
    DE2311539C3|1975-02-20|Calendar mechanism
    CH715047A2|2019-12-13|Driving means.
    DE3015860C2|1987-06-04|
    CH702111A2|2011-04-29|Calendar mechanism and analog clock with this calendar mechanism.
    DE3708611C1|1988-06-01|Electric timer with a program carrier that can be switched from a short-term program to a long-term program
    DE2040081C3|1974-03-28|UHF tuner
    DE1863583U|1962-12-06|WATCH WITH DATE DISC.
    DE628280C|1936-03-31|Time switch, especially for radio sets
    DE2205139B2|1975-02-27|Correction device for a watch with multiple time displays
    DE2015446A1|1970-11-12|Device for displaying an angular position
    EP1924894B1|2013-12-18|Wristwatch
    DE102016111464B3|2017-08-31|Date shift of a calendar of a clock
    DE102007038202B3|2008-09-18|24-hour display for a watch with hands
    DE19651234C2|2002-10-10|Notched shaft for encoders
    DE2159330C3|1975-12-04|Correction mechanism for a clock with date display
    DE2213999A1|1972-10-26|Clock with day and day of the week display
    DE2437230C3|1976-11-18|Calendar movement with display elements to show the date and the day of the week
    CH713545A2|2018-09-14|Analog clock with date display.
    同族专利:
    公开号 | 公开日
    JP2019215335A|2019-12-19|
    CN110568747A|2019-12-13|
    CN110568747B|2021-04-02|
    JP6762402B2|2020-09-30|
    DE102018113535A1|2019-12-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1204043B|1958-07-24|1965-10-28|Heliowatt Werke Elek Zitaets G|Limit force coupling for the transmission of small powers in precision mechanical or electro-technical devices|
    CH429322A|1965-03-05|1967-01-31|Hinden Willy|Adjustable thrust bearing coupling|
    JPS5517353B1|1970-03-11|1980-05-10|
    PL76401B1|1971-04-21|1975-02-28|
    JPS5221084Y2|1972-01-13|1977-05-14|
    JPS596311B2|1978-07-24|1984-02-10|Rikagaku Kenkyusho|
    JPS55122178A|1979-03-14|1980-09-19|Ricoh Elemex Corp|Hour indication correction mechanism for timepiece|
    JPS60154626U|1984-03-23|1985-10-15|
    GB8620214D0|1986-08-20|1986-10-01|Gib Precision Ltd|Torque limited clutch|
    JPH02134420A|1988-11-15|1990-05-23|Matsushita Electric Works Ltd|Clutch|
    JPH0737817B2|1991-12-10|1995-04-26|株式会社椿本エマソン|Ball clutch with different trip torque depending on direction of rotation|
    EP0790438B1|1996-02-19|2000-04-26|Hiromitsu Yamada|Geneva drive mechanism|
    DE19815999B4|1997-08-25|2006-03-16|Ktr Kupplungstechnik Gmbh|Overload coupling with material recesses provided on the outer and inner circumference|
    JP5187170B2|2008-12-05|2013-04-24|日産自動車株式会社|Torque limiter and driving force transmission device|
    JP2013087887A|2011-10-19|2013-05-13|Seiko Instruments Inc|Clutch mechanism and clock equipped therewith|
    US9874855B2|2014-04-03|2018-01-23|Eta Sa Manufacture Horlogere Suisse|Electronic clock movement comprising an analog display of several items of information|
    CH709508B1|2014-04-03|2018-07-13|Eta Sa Mft Horlogere Suisse|Watch movement with a drive mechanism of an analogue indicator with periodic or intermittent movement.|
    CN106662838B|2014-06-19|2020-08-04|劳力士有限公司|Transmission device of timer|
    EP3002636B1|2014-10-02|2017-08-09|ETA SA Manufacture Horlogère Suisse|Disengaging coaxial wheels of a watch movement|
    JP6490404B2|2014-11-19|2019-03-27|日本電産シンポ株式会社|Wave gear device|
    CH711931A2|2015-12-18|2017-06-30|Montres Breguet Sa|Mechanism for adjusting the torque ratio between clockwork mobiles.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018113535.1A|DE102018113535A1|2018-06-06|2018-06-06|driving means|
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