• 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 pallet display device (1). This device comprises a guiding device along a guide path comprising a linear section followed by a circular section (TC1) minus, a plurality of display vanes (5) arranged on the guiding device so as to follow the trajectory of the guide. guiding under a driving force, and a drive member of said pallets on the guide device along said path.
    公开号:CH712901A2
    申请号:CH01181/16
    申请日:2016-09-12
    公开日:2018-03-15
    发明作者:Chaignat Julien；Lopez Sébastien
    申请人:Sowind SA；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD [0001] The present invention relates to the field of watchmaking. It relates more particularly to a pallet display device for a timepiece such as a wristwatch or a mechanical clock for example.
    STATE OF THE ART [0002] It is known to produce display devices for timepieces such as clocks or mechanical clocks consisting of rotary vanes. These pallets are conventionally of substantially rectangular shape and rotatably mounted on a frame of the timepiece. Each of the pallets usually has a marking on its opposite faces, which marking is intended to form a digital time-type indication when it is matched with an additional marking on a previous pallet or a rear pallet of the display device. The rotation of the pallets is actuated by a spring cooperating with the pallets, which spring transmits its restoring force to a pallet under the action of a control member triggered at a chosen period (hour, minute, second ...). Alternatively, the rotation of the pallets may result essentially from the force of gravity, the pallets then being essentially blocked in abutment by a suitable device and released at a chosen period (hour, minute, second ...).
    [0003] A major disadvantage of these vane display mechanisms is their incompatibility to function properly regardless of the position of the timepiece they form the display. Indeed, that the pallets are actuated by release of a spring or by gravity it is impossible for a pallet to pivot in a direction opposite to that of the force of gravity, except to provide a spring whose return force is much higher pallet weight, which is in practice not economically viable.
    This is the reason why pallet display devices have never been implemented in timepieces such as watches.
    The present invention aims to overcome the defects of known pallet display devices and in particular to provide a pallet display device compatible with a use in a timepiece such as a watch.
    DISCLOSURE OF THE INVENTION [0006] The aims of the invention are achieved by means of an improved pallet display device characterized in that it comprises a guiding device along a guide path comprising a linear section followed by a section of at least a circular section, a plurality of display pallets arranged on the guide device so as to follow the guide path under a driving force, and a drive member of said pallets on the guiding device along said path.
    The display device according to the invention has the advantage, unlike the devices of the prior art to provide a permanent guide pallets according to a specific guide path, the movement of the pallets being independent of gravity and only printed by the drive member of the device. The driving force of the pallets is essentially transmitted to the pallets by said drive member, which controls the movement of the pallets at any point of the guide path. It is thus possible to move the pallets in a controlled manner independently of the spatial orientation of the display device and the possible effect of gravity on the pallets, which allows the use of the device in a watch for example.
    Advantageously, the pallets are slidably mounted on rails of the guide device and further extend parallel to each other on the guide device in directions perpendicular to the guide path.
    According to a particular embodiment, said pallets are mounted in suspension on the guide device via projecting lugs at opposite longitudinal ends of said pallets.
    Advantageously, the lugs rest on or in the guide rails of the guide device. In addition, these are also preferably formed of material on spacers fixed to said longitudinal ends of the pallets.
    In a preferred embodiment said spacers comprise at least two projecting lugs positioned on an outer surface of said spacers so that they define, in any position of each of the pallets on their path, a line collinear to said trajectory or to a tangent to it.
    Advantageously, said spacers form a drive fork arranged to cooperate on a portion of the path of said pallets at least with the drive member.
    In one embodiment of the invention the guiding device comprises a first flange and a second flange each comprising a guide rail and being arranged and held on either side of the pallets and parallel one of the the other by means of crosspieces such that the guide rails of said flanges are arranged facing one another.
    Preferably, the guide rails consists of a slide formed by a groove or groove in the first and second flange, for example by molding, stamping or machining.
    [0015] More preferably, said rails define a closed guide path, in particular an annular trajectory.
    According to a preferred embodiment of the invention the drive member comprises a drive shaft mounted free to rotate at its ends on the guide device, said axis comprising a coupling member in rotation with a complementary coupling member secured to the pallets.
    Advantageously, the drive shaft is rotatably mounted on bearings in housings dedicated for this purpose in each of the flanges of the guide device.
    Advantageously, said rotational coupling member comprises at least one finger or a protruding tooth on the drive shaft to at least one, preferably each, of its ends.
    Preferably, the coupling member comprises two fingers or protruding teeth on the drive shaft at each end thereof.
    Said drive shaft is finally advantageously shaped to allow direct coupling to a motor drive device in rotation of the axis. It is thus possible to mechanically couple the display device of the invention to a transmission assembly and / or direct drive of a timepiece such as a gearbox and or a wheel of a movement to allow the display of a time indication component or date for example.
    BRIEF DESCRIPTION OF THE DRAWINGS Further details of the invention will appear more clearly on reading the description which follows, given with reference to the appended drawing in which:
    Fig. 1 is a perspective view of a display device according to the invention;
    Fig. 2 is a right view of the display of FIG. 1 in which a flange has been removed;
    Fig. 3 shows an exploded view of the display device according to the invention;
    Fig. 4 is a view similar to FIG. 2 with the missing flange;
    Figs. 5A and 5B show the display device of FIG. 4 in a horizontal section A-A and vertical B-B respectively.
    Embodiment of the Invention [0022] FIGS. 1 to 5, different views and sections of a display device according to the invention in a preferred embodiment. As shown in FIGS. 1 to 4 in particular, the display device 1 of the invention consists in particular of a pallet display device comprising two lateral flanges 2 interconnected by connecting struts 3, for example three crosspieces 3 fixed in their ends via bolts 31 on said flanges 2.
    The flanges 2 comprise on an inner wall 2a of the guide rails 6 which support a train 4 of display pallets 5 individually mounted at their ends in said guide rails 6 and define a guide path T of the pallets. 5. The flanges 2 connected by their sleepers 3 and the guide rails 6 define a device for guiding the display device 1.
    The guide path T defined by the guide rails 6 is an annular path, comprising two linear sections TL1, TL2 parallel to each other connected at their ends by two opposite circular sections TC1, TC2. The sections TL1, TL2 will subsequently be in this description also referred to respectively as the upper linear section and the lower linear section. Likewise, the sections TC1, TC2 will subsequently be in this description also referred to respectively as anterior circular section and a posterior circular section respectively.
    The display pallets 5, whose number of course depends on the type of time schedule to be displayed, are slidably mounted on the guide rails 6 and, where appropriate, as in the example shown but not necessarily, parallel to each other so that each pallet 5 extends perpendicular to the flanges 2 and the guide path T at any point thereof.
    More particularly and as shown in the figures, said pallets 5 are suspended by means of lugs 51 projecting at opposite longitudinal ends of said pallets 5 on or in the guide rails 2, said lugs 51 being by Example formed of material on spacers 7 fixed to the longitudinal ends of the pallets, said spacers 7 being in planes substantially perpendicular to the planes of the pallets.
    In the preferred embodiment shown, said spacers 7 comprise at least two lugs 51 salient positioned on an outer surface of said spacers 7 so that they define, in any position of each of the pallets on their path, a straight line collinear to said path T or a tangent thereto. This particular configuration of the spacers 7 with double lugs 51 advantageously makes it possible to ensure perfect stability and positioning of the vanes 5 on the guide rails 6 at any point along the guide path T, in particular by preventing any pivoting or misalignment of the vanes 5 under the effect of gravity or other which could lead to a blockage of said pallets as well as significant and harmful friction of the lugs in the guide rails 6.
    The display pallets 5 are arranged so as to follow the guide path T under a driving force printed essentially by a drive member 8. This drive member 8 comprises in the example shown in FIGS. FIGS. a drive shaft 81 mounted free to rotate on bearings 9 housed in reservations, for example counterbores or circular openings 10 formed in the flanges 2.
    Said drive shaft 81 extends perpendicularly to the flanges 2 and parallel to the connecting rails 3 of said flanges. In addition, at least one end 810 thereof protrudes from the outer wall 2b of one of the flanges 2 in order to allow coupling of said shaft 81 to a motor member. For this purpose, said projecting end 810 of the drive shaft is advantageously shaped to allow such coupling or at least equipped with a coupling piece in rotation. As a particular example, the end 810 of the shaft may be shaped so that it has a square, triangular or fluted cross-section to allow its coupling by simple insertion into a driving member having a corresponding section orifice.
    The drive member 8 further comprises one, and preferably as in the example shown two members 82 rotatably coupling the drive shaft 81 with the display paddles 5 to drive those These coupling members 82 comprise, for example, as shown one, preferably two, fingers or a teeth 820 protruding substantially perpendicular to the shaft 81 at the ends of said shaft and facing internal surfaces 2a. 2. Preferably, the protruding fingers or teeth 820 formed of material on the periphery of coupling members 82 in the form of disks integral with the drive shaft, said fingers or teeth 820 being diametrically opposed on the periphery of the discs perpendicularly to the drive shaft 81. This configuration is particularly preferred in order to create a simultaneous leverage effect between e the ends of said fingers or teeth 820 and two vanes 5 in opposite positions on the guide path T as will be described later.
    In order to allow a good coupling of the drive member 8 with the pallets 5, the spacers 7 of the latter advantageously form a fork 71 whose fingers 72 define a gap 73 of suitable dimensions for the fingers or teeth 820 coupling members 82 fit into said gap 73 during the rotation of the drive shaft and thus drive as the meshes 5 on the guide rails 6 on at least a portion of the guide path T.
    Moreover, as is apparent from the figures, the spacers 7 are also advantageously shaped so that their lateral fields 74 are inclined in secant directions in the plane defined by the pallet 5 of which they are integral at the level of free end thereof, said plane of the pallet containing the bisector of the angle formed between the secant directions.
    The lateral fields 74 of the spacers 7 are each connected to a base segment 75 by a curved segment 76 advantageously provided to allow a one-off rolling or pivoting of the spacers 7 of the consecutive pallets of the pallet train 4 on top of one another. the posterior circular section TC2 of the guide path. This avoids any bracing effect of the spacers 7 in the guide section TC2, likely to cause a locking pallets 6lors their movement without drive in this section. Moreover, the lateral fields 74 also allow, if necessary, a plane support of the spacers 7 in this same section TC2 to optimize the thrust of the pallets 5 against each other in this circular guide section TC2 during their translation in the rails of FIG. guidance 6 between the two linear sections TL1, TL2 consecutive guide path under the single driving force of the drive member 8. Thus, depending on the number of pallets 5 one will choose the inclination of the lateral fields 74 spacers 7 to ensure between the pallets 5 a constant plane support over the entire translation in the rear circular section TC2 of the guide path, as shown in FIG. 2.
    The operation of the display device 1 of the invention is extremely simple and is described below.
    The display device 1, once attached to a frame of a timepiece (not shown) is connected by the coupling end 810 of the shaft 81 of the drive member 8 to a transmission device and a motor member of a mechanical timepiece. At rest, the pallets 5 are positioned one after the other in the guide rails 6 as shown in FIG. 2, in the two upper and lower linear sections TL1, TL2 of the guide rails 6 and the posterior circular section TC2 of said rails, the first and last pallets 5p, 5d of the pallet train being substantially symmetrical to one another with respect to the drive shaft 81 and defining on the front face of the display device a plane of PA display of a digital calendar.
    权利要求:
    Claims (14)
    [1]
    In this rest position, the prior circular section TC1 of the guide rails 6 is free of any paddle to allow viewing of the display. In addition, the fingers 820 of the coupling members 82 are inserted into the interstices 73 of the forks 71 of the spacers 7 of said first 5p and last 5d pallets of the pallet train, the other pallets of the train being devoid of contact with the gear member. During the normal running of the timepiece, the drive member and the transmission device transmit a driving torque to the display device 1 by the drive shaft 81 of the driving member, which rotates substantially 180 °. This rotation induces the transmission via the fingers 820 of the drive member 8 on the forks 71 of the spacers 7 of the first 5p and last 5d pallets of a driving force in translation of said first and last pallets in the rails 6. More particularly the first pallet 5p is driven in translation in the anterior circular guide section TC1 to take the place of the last pallet 5d which is pushed in translation by the second coupling finger 820 in the lower linear section TL2 of the guide path T. This movement of the first 5p and last 5d pallets in the guide rails 6 prints at the same time a thrust force on all pallets 5 of the train which also translate "d" a pallet, the second pallet of the train taking the place of the first and so on each rotation of the drive member. The display device 1 of the invention therefore allows a digital display of a calendar date pallets regardless of the position of the display device, and therefore the timepiece comprising it in space . Indeed, in the device of the invention the pallets are moved and locked in position essentially by the drive member and the coupling fingers thereof in cooperation in the ranges of the spacers supporting the pallets in the rails of guiding the guiding device. Without rotation of the rotator the pallets absolutely can not move relative to each other which makes the display device insensitive to movement in space, which makes it compatible with use in timepieces such as watches. claims
    Pallet display device (1) characterized in that it comprises a guide device along a guide path (T) comprising a linear section (TL1, TL2) followed by a section of a circular section ( TC1, TC2) at least a plurality of display pallets (5) arranged on the guide device to follow the guide path (T) under a driving force transmitted by a drive member (8) said pallets on the guide device along said path (T).
    [2]
    2. Display device according to claim 1, characterized in that the vanes (5) are slidably mounted on rails (6) of the guiding device.
    [3]
    3. Display device according to claim 1 or 2, characterized in that the vanes (5) extend parallel to each other on the guide device in directions perpendicular to the guide path (T).
    [4]
    4. Display device according to one of claims 1 to 3, characterized in that said pallets (5) are mounted in suspension on the guide device via lugs (51) projecting at the ends. longitudinal opposite said pallets.
    [5]
    5. Display device according to one of claims 1 to 4, characterized in that the guiding device comprises a first and a second flange (2) each having a guide rail (6) and being arranged and maintained from and other pallets (5) and parallel to each other by crosspieces (3) so that the guide rails (6) of said flanges are arranged opposite one another.
    [6]
    6. Device according to claims 4 and 5, characterized in that the lugs (51) projecting from said pallets rest on or in said guide rails (6).
    [7]
    7. Device according to one of claims 4 to 6, characterized in that said lugs (51) projecting are formed of material or reported on spacers (7) attached to said longitudinal ends of the pallets.
    [8]
    8. Device according to claim 7, characterized in that said spacers (7) comprise at least two lugs (51) salient positioned on an outer surface of said spacers so that they define, in any position of each of the pallets on the guide path (T), a line collinear with said path or a tangent thereto.
    [9]
    9. Device according to one of claims 7 or 8, characterized in that said spacers (7) form a drive fork (71) arranged to cooperate on a portion of the guide path (T) of said pallets at least with the driving member (8).
    [10]
    10. Device according to one of claims 1 to 9, characterized in that the drive member (8) comprises a drive shaft (81) rotatably mounted at its ends on the guide device, said axis. comprising a coupling member (82) in rotation with a complementary coupling member integral with the pallets.
    [11]
    11. Device according to claim 5 and claim 10, characterized in that the drive shaft (81) is rotatably mounted on bearings in housings dedicated for this purpose in each of the flanges (2) of the device. guide.
    [12]
    12. Device according to claim 10 or 11, characterized in that said coupling member (82) in rotation comprises a finger or a tooth (820) protruding perpendicularly to the drive shaft (81) to at least one, preferably each one, from its ends.
    [13]
    13. Device according to claim 12, characterized in that it comprises two fingers or projecting teeth (820) at each end of the drive shaft (82).
    [14]
    14. Device according to one of claims 10 to 13, characterized in that one end (810) of said drive shaft is shaped to allow direct coupling to a drive device for rotating the shaft.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH712901B1|2020-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-06-14| NV| New agent|Representative=s name: BOVARD SA NEUCHATEL CONSEILS EN PROPRIETE INTE, CH |
    优先权:
    申请号 | 申请日 | 专利标题
    CH01181/16A|CH712901B1|2016-09-12|2016-09-12|Pallet display device for a timepiece.|CH01181/16A| CH712901B1|2016-09-12|2016-09-12|Pallet display device for a timepiece.|
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