• 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:
    A watch case (1) comprising: - a case (5) defining a plane; - A rotating bezel (7) rotatably mounted on said middle (5); - A locking system (17) of said rotating bezel (7), said locking system (17) comprising a control member (19) movable in a direction parallel to said plane and arranged to move between a first position in which said bezel is rotatable and a second position in which said bezel is locked. According to the invention, said locking system comprises: - a movable finger (21) arranged to interact with a lower face (11) of said bezel (7) when said control member (19) is in its second position and for being out of contact with said lower face (11) when said control member (19) is in its first position; and - a cam path (29) integral with said control member (19) and arranged to move said movable finger (21) according to the position of said control member (19).
    公开号:CH713117A2
    申请号:CH01491/16
    申请日:2016-11-10
    公开日:2018-05-15
    发明作者:Coste Laurent
    申请人:Breitling Montres 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, a watch case rotating bezel for timepiece.
    STATE OF THE ART [0002] In a current manner, some watches comprise a rotating bezel, which has a time scale whose registered values are typically increasing in a clockwise direction. The bezel in question may be a rotating ring located around the ice of the timepiece, or may be used to carry the ice, the latter then pivoting when the bezel rotates. At the beginning of a time measurement, the user positions the zero indication on the scale next to the minute hand of the piece, the scale actually allowing timekeeping. A second type of inverse arrangement is also known, in which the indicated values are increasing counter-clockwise, the bezel being turned by the user so that the desired maximum time is aligned with the minute hand to provide a countdown.
    This kind of rotating bezel typically comprises a unidirectional snap which allows a rotation exclusively in the counterclockwise direction. Thus, manipulation of the telescope inadvertently can only induce an increase in the indication of the elapsed time, or a decrease in the indication of the remaining time in the case of the second type mentioned above.
    However, inadvertent rotation of the telescope may still lead to an error all the more significant that the rotation will be large. This error may even give the impression that less time has elapsed than in the case where the telescope has been rotated for example by almost a complete revolution. Therefore, such rotating bezel systems are not suitable for use which requires a reliable indication of elapsed time or remaining time, especially for security reasons. This is especially true during a dive, as poor dive time measurement can cause the diver to exhaust his compressed air supply. This kind of rotating bezel is therefore not considered suitable for such an application.
    In order to overcome this drawback, and thus to make the rotating bezel system compliant with ISO 6425: 1996, which defines the requirements applicable to diving watches, the lockable bezel has been proposed. Such a bezel is associated with a locking system, which allows to lock it in a specific angular position, either following an action of the user, or automatically by the effect of the pressure of the water. Since an inadvertent rotation of the telescope is prevented by its locking, such glasses can rotate either in one direction, or in both directions of rotation when they are not locked.
    An example of a biocable scope through an action on the part of the user is disclosed in FR 2 402 898, the locking system described in this document being particularly simple.
    In this document, the rotating bezel is provided with a flat underside, which interacts with a ball provided in a housing which is provided with the middle part. This ball is controlled to move vertically through a wedge machined in a rod passing transversely through the middle part. By moving the rod in one direction, the ball is released, and the bezel can be rotated. By moving the rod in the other direction, the wedge causes the ball to press against the underside of the bezel, which is therefore locked by friction.
    However, the use of a ball and a wedge has several disadvantages.
    - The position of the rod in the locked state of the system is variable depending on the wear of the wedge and the underside of the bezel.
    - The locking force exerted by the ball on the bezel is variable depending on the force applied by the user on the rod, and depending on the state of wear of the system.
    - If the user presses excessively on the rod, the ball may damage the underside of the telescope, and / or the surface of the wedge.
    - Inopportune manipulation of the bezel may roll the ball on the hold, which will move the rod and loosen the ball, thereby reducing the locking force.
    - This kind of system does not lend itself to a tactile stop position of the rod, for example by means of a pawl, a ball trigger, a stop against a stop, or the like, because the use of the wedge and / or the underside of the bezel requires that the rod is pressed deeper and deeper to ensure the same locking force of the bezel.
    - The use of a ball is unsuitable in the case of a bezel provided with an axial toothing, because there is the risk that the ball interact with the toothing that includes the underside of the bezel when this last is not blocked, which can be felt by the user when handling the telescope.
    When the bezel is not blocked, the ball can float in its housing and generate metal noises.
    - The use of a rod that moves linearly limits the number of possible variations for the integration of the system in a watch.
    The object of the invention is therefore to provide a watch case provided with a lockable rotating bezel, wherein the aforementioned defects are at least partially overcome.
    Disclosure of the Invention [0018] More specifically, the invention relates to a watch case as defined by the claims.
    This watch case comprises a middle part defining a plane, and a rotating bezel rotatably mounted on said middle part.
    A locking system of said rotating bezel is also provided, said locking system comprising a movable control member in a direction parallel to said plane and arranged to move between a first position in which said bezel is rotatable and a second position in which said bezel is locked and is prevented from turning.
    According to the invention, the locking system comprises a movable finger arranged to interact with a lower face of said bezel when said control member is in its second position, and which is out of contact with said lower face when said control member is in its first position. Therefore, the bezel is blocked when the control member is in its first position, and is released when the latter is in its second position. Furthermore, the system comprises a cam path secured to said control member and arranged to move said movable finger according to the position of said control member.
    The use of a cam path instead of a wedge or other simple cam shape ensures that the finger is positively controlled in both directions of movement, and is under control at all times. Furthermore, the use of a finger controlled by said cam path instead of a ball controlled by a single wedge prevents the aforementioned floating, without requiring any additional piece such as a spring. The locking system is thus simple and easy to build.
    Advantageously, the movable finger is carried by a finger-holder and is arranged to move in a direction at least partially perpendicular to said plane, preferably linearly. Alternatively, the finger can be pivotally mounted on the middle part and thus to move in a curve.
    [0024] Advantageously, in the case where the finger moves linearly, it is guided by one, two or even more pins extending in a direction perpendicular to said plane. The use of pins facilitates the manufacture, because the openings necessary for their assembly in the system can be pierced by means of a simple drill. In a variant, the pins are integral with said middle part, the holder sliding on them. Alternatively, the pins can be secured to the finger holder and can slide on the middle part, or can be free of each of these two elements of the construction.
    Advantageously, the system further comprises a stud integral at least in translation of said movable finger, the stud taking place in said cam path. The stud may, for example, extend in a direction parallel to the plane of the middle part.
    Advantageously, the bezel has a toothing extending towards said middle in a direction perpendicular to said plane, the finger being shaped to interact with said toothing. For this purpose, the shape of the finger may be a tooth, several teeth (which constitute several adjacent fingers), a pin, or any other similar construction, arranged to interpose between two consecutive teeth of said toothing when said control member is found in his second position. This finger can enter with play in the toothing, and therefore avoids applying a force when the bezel is blocked. The wear of the system is thus minimized.
    Alternatively, a face of said bezel facing said middle can be smooth, said finger being arranged to interact with said face by friction to lock said bezel when said control member is in its second position.
    Advantageously, the two ends of said cam path each follow a direction substantially parallel to the plane of said middle, one of these ends being active (that is to say in contact with the stud or with a similar element ) when said control member is in said first position, the other being active when said control member is in said second position. In doing so, the position of the finger in each of the extreme positions of the control member is constant, and no force must be exerted by the finger on the bezel. As a result, the risk that the user could damage the telescope or finger by applying excessive force is eliminated.
    Advantageously, said control member is associated with a trigger adapted to maintain said control member in its second position, in order to prevent the locking system from unblocking unexpectedly. Similar expansion may also be provided to maintain the control member in its first position, if any.
    Finally, the invention relates to a timepiece comprising a watch case as described above.
    BRIEF DESCRIPTION OF THE DRAWINGS Further details of the invention will appear more clearly on reading the description which follows, made with reference to the appended drawings in which: FIG. 1 is a partial isometric view of a timepiece according to the invention, the bezel being unlocked: FIG. 2 is a view similar to FIG. 1, the bezel being cut cylindrically and illustrated in its rusted state; Fig. 3 is an isometric view cut cylindrically through the locking system, the bezel being cut cylindrically and illustrated in its unlocked state; and fig. 4 is a view similar to FIG. 3, the bezel being in its locked state.
    Embodiment of the Invention [0032] FIGS. 1 to 4 illustrate a watch case 1 for a timepiece, according to the invention. Usually, the watch case 1 comprises a caseband 5, in which can be housed a movement of any kind (for example mechanical, electromechanical, or electronic), closed by a bottom (not shown). The middle 5 defines a plane, which is parallel to the caseband in the case of a simple flat middle, or a medium plane in the case of a curved middle.
    On the upper face of the caseband 5 is rotatably mounted a rotating bezel 7, this bezel serving as a support for an ice cream 9. However, the same principle of the invention also applies to the case of an ice cream directly by the middle part of a fixed manner, the bezel 7 being a separate part mounted in rotation around the fixed ice. The bezel 7 is guided in a conventional manner on the middle part 5, the corresponding guide means not being shown in the figures.
    In the variant shown, the lower face 11 of the bezel 7, that is to say its face facing the middle part 5, and which extends generally parallel to the plane of the latter, is provided with an axial toothing 13, extending perpendicularly to the plane of the middle part 5. This toothing 13 cooperates with a ball 15, which is kept in contact with the toothing 13 via an elastic element (not shown) in known manner , in order to form a snap. This snap is used to index the bezel 7, as generally known, and to allow a rotation of the bezel 7 in both directions. Alternatively, a unidirectional snap can be provided.
    The watch case 1 comprises mounted in the middle part 5, a locking system 17. This locking system 17 comprises a control member 19 which is arranged to move along the periphery of the middle part 5 in response to a action of a user. The control member 19 therefore moves in the plane of the middle part 5, in the direction of the arrows drawn in FIGS. 1 and 2.
    To block the bezel 7, the locking system 17 comprises a finger 21. carried by a finger holder 23. In the variant shown, the finger holder 23 is forced to move vertically, that is to say to say in a direction perpendicular to the plane of the middle part 5. For this purpose, the finger holder 23 is guided linearly via a pair of pins 25, or at least one other ad hoc guide means, integral 5. These pins 25 take place in corresponding openings provided in the finger holder 23, which slides on the pins 25. Alternatively, the pins 25 may be integral with the finger holder 23, and can slide in openings provided for in FIG. this effect in the middle part 5, or they can be integral with any of these elements. Furthermore, since the finger holder 23 is constrained by the walls of its housing, a single pin 25 can be used. Alternatively alternatively, the finger holder 23 may be arranged to pivot about an axis integral with the middle part. In any case, the finger holder 23 is arranged such that the finger 21 can move between its inactive position, in which it does not interact with the toothing 13 (see Figs 1 and 3), and its active position. in which it locks the toothing 13 (see Figs 2 and 4).
    In the context of the present invention, the term "finger" must be interpreted broadly, and includes for example a pin, a section of teeth (each tooth of this toothing being by definition a finger), or the like.
    To move the finger holder 23, the latter is provided with a control pad 27, which extends laterally projecting from the finger holder 23 parallel to the plane of the middle part 5 and which takes place in a cam path 29 that comprises the control member 19. The control pad 27 is thus constrained on two opposite sides by the cam path.
    The cam path 29 is shaped so as to convert a displacement of the control member 19 in the plane of the middle part 5 in a displacement of the finger holder in the direction of the toothing 13. The two ends 29a , 29b of this cam path 29 follow a direction parallel to the plane of the middle part 5, in order to provide a stable predetermined position of the finger holder 23 in each of its two states, without the need for the finger holder 23 to exert a force on the teeth 13 of the bezel 7. Indeed, the finger 21 can simply penetrate between two adjacent teeth with play, to block the bezel 7 without causing wear of its lower surface 11. Therefore, there is no risk that the user can damage said lower face 11 by actuating the control member in a way too powerful. A ball trigger 31 or the like which acts on the control member 19 can provide a tactile stop so that the user can feel manually that the locking system 17 is in the desired state, the ends
    权利要求:
    Claims (12)
    [1]
    29a, 29b thus blocking the finger 21 in the desired position. Alternatively, the ball trigger 31 or the like may be associated with the finger holder 23. The use of a cam path instead of a wedge or other simple cam shape ensures that the stud 27 is positively retained on both sides, and that the finger holder 23 can not float like the ball of the document FR 2 402 898 mentioned above, without for example requiring any spring, or other means to suppress such a floating. The number of parts present in the locking system 17 is thus minimized. As mentioned above, it is possible that the lower face 11 of the bezel is devoid of teeth. In such a case, the finger 21 interacts with said lower face 11 by friction. In order to prevent the locking system from exerting too much force on this surface, the finger 21 can be mounted elastically on the finger holder 23, so that the elastic element linking the finger 21 to the finger holder 23 is compressed when the bezel 7 is locked. For example, the finger holder 23 may be cut to form a leaf spring, or an ad hoc spring may be interposed between the finger 21 and the body of the finger holder 23. The normal force exerted between the finger 21 and the face The lower part of the telescope can thus remain substantially constant. Although the invention has been described in connection with a particular embodiment, variations are possible without departing from the scope of the invention as defined by the appended claims. claims
    A watch case (1) comprising: - a caseband (5) defining a plane; - A rotating bezel (7) rotatably mounted on said middle (5); - A locking system (17) of said rotating bezel (7), said locking system (17) comprising a control member (19) movable in a direction parallel to said plane and arranged to move between a first position in which said bezel is movable in rotation and a second position in which said bezel is locked; characterized in that said locking system comprises: - a movable finger (21) arranged to interact with a lower face (11) of said bezel (7) when said control member (19) is in its second position and to be out of contact with said lower face (11) when said control member (19) is in its first position; - A cam path (29) integral with said control member (19) and arranged to move said movable finger (21) according to the position of said control member (19).
    [2]
    2. Watch case (1) according to claim 1, wherein said movable finger (21) is arranged to move in a direction perpendicular to said plane.
    [3]
    3. Watch case (1) according to claim 2, wherein said movable finger (21) is carried by a finger holder (23) and is arranged to move linearly.
    [4]
    4. Watch case (1) according to claim 3, wherein said movable finger (21) is guided by at least one pin (25), preferably two pins (25), extending in a direction comprising a perpendicular component. audit plan.
    [5]
    5. Watch case (1) according to claim 4, wherein said pins (25) are integral with said middle part (5).
    [6]
    6. Watch case (1) according to one of the preceding claims, further comprising a stud (27) integral with said movable finger (21), said piot taking place in said cam path (29).
    [7]
    7. Watch case (1) according to one of the preceding claims, wherein said bezel (7) has a toothing (13) extending towards said middle in a direction perpendicular to said plane, said finger (21) being shaped to interact with said toothing (11).
    [8]
    8. Watch case (1) according to claim 7, wherein said finger is shaped to interpose between two consecutive teeth of said toothing (13) when said control member (19) is in its second position.
    [9]
    9. Watch case (1) according to one of claims 1 to 6, wherein a face (11) of said bezel (7) facing said middle (5) is smooth, said finger (21) being arranged to cooperating with said face (11) by friction to lock said bezel (7) when said control member is in its second position.
    [10]
    10. Watch case (1) according to one of claims 1 to 9, wherein the two ends (29a, 29b) of said cam path (29) each follow a direction substantially parallel to the plane of said middle (5), one of these ends (29b) being active when said control member (19) is in said first position, the other (29a) being active when said control member (19) is in said second position.
    [11]
    11. Watch case (1) according to one of the preceding claims, wherein said control member (19) is associated with a trigger (31) adapted to maintain said control member (19) in at least its second position.
    [12]
    12. Timepiece comprising a watch case (1) according to one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    CH713117B1|2021-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN111736443A|2019-03-25|2020-10-02|卡西欧计算机株式会社|Rotating device and timepiece|
    CN111736444A|2019-03-25|2020-10-02|卡西欧计算机株式会社|Rotating device and timepiece|
    法律状态:
    2021-01-29| PCOW| Change of address of patent owner(s)|Free format text: NEW ADDRESS: LEON BREITLING-STRASSE 2, 2540 GRENCHEN (CH) |
    优先权:
    申请号 | 申请日 | 专利标题
    CH01491/16A|CH713117B1|2016-11-10|2016-11-10|Lockable rotating bezel watch case.|CH01491/16A| CH713117B1|2016-11-10|2016-11-10|Lockable rotating bezel watch case.|
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