Locking movable part for watch escapement mechanism

Abstract

To provide a locking movable part for the escapement mechanism of a watch. [Solution] A locking movable part 4 of a watch escapement device 10), comprising a fork 400 having two first parts, so-called impulse parts, which are opposed to each other and arranged to transmit at least a portion of the impulse received from at least one escapement movable part 1, 2 to an inertial element during the impulse phase, wherein the fork comprises two second parts, so-called contact parts, which are opposed to each other and arranged to protrude toward one of the first parts and which are arranged to contact an inertial element when struck by the watch movement during the rest phase.

Description

Technical Field

[0001] The present invention generally relates to a detent mechanism for a timepiece movement, and more particularly to a locking movable part for such a detent mechanism.

Background Art

[0002] In the prior art of detent mechanisms, document CH44855A or document EP3754433A1 is known, which disclose an anchor detent with an anchor without darts, the fork of which provides anti-disengagement safety by interacting with a template. On the other hand, these systems are bulky, especially due to the dimensions of the anchor, which must be of a considerable length to ensure that the fork has an amplitude of displacement sufficient for the fork to engage and disengage with the impulse pin even for a small angular deflection of the anchor specific to these types of detents. Furthermore, it should be noted that these Swiss anchor type detents are necessarily sensitive to friction during the impulse phase since the anchor and the detent wheel pivot in the same direction of rotation during the impulse phase.

Summary of the Invention

[0003] One object of the present invention is to satisfy the drawbacks of the above-mentioned prior art, and in particular, first of all, to improve the known detent mechanism, that is, to have an effective operation, and / or to have good efficiency, and / or to have good operational safety, and / or to have good shock resistance, and / or to provide a detent mechanism with components that make it possible to reduce the overall bulk.

[0004] To this end, a first aspect of the present invention is a locking movable part for a timepiece movement, comprising - a detent mechanism comprising the locking movable part and at least one detent movable part, - an oscillator comprising at least one inertial element provided with a driving part such as teeth or pins, and elastic return means coupled to the inertial element. The locking movable part -A locking means arranged to lock at least one escapement movable part of the escapement device during the resting phase, - An impulse receiving means configured to receive an impulse from at least one escapement movable part during the impulse phase, - comprising a fork having two first parts, so-called impulse parts, which face each other and are configured to transmit at least a portion of the impulse received from at least one escapement movable part to the drive part of the inertial element during the impulse phase, The invention relates to a locking movable part, characterized in that the fork comprises two second parts, so-called contact parts, which are positioned opposite each other and each protrudes toward one of the first parts, and each is configured to contact an inertial element when struck by the movement of a clock during a resting phase.

[0005] The locking movable part according to the above embodiment comprises a fork that interacts with the drive portion of the inertial element, the fork comprising a second portion, a so-called contact portion, that protrudes toward the impulse portion (also known as the surface impulse portion or impulse surface). These second protruding portions form a boss or projection from the first portion. Such second protruding portions enable contact with the inertial element even when the locking movable part is compact in size and / or has a large angular deflection between two consecutive resting positions, for example, in the case of an escapement having a tangential drive portion.

[0006] The locking movable parts can be defined by the following characteristics, which may be employed individually or in combination:

[0007] According to one embodiment, the fork comprises two horns, each extending along the longitudinal horn direction, and each horn extends along a direction that crosses the longitudinal horn direction. - The first width E1 at the level of the first part, -Having a second width E2 at the level of the second part, E2 > E1, preferably E2 > 1.1.E1, preferably E2 > 1.2.E1, preferably E2 > 1.3.E1. According to this configuration, the horn has a lateral dimension (relative to the longitudinal direction) that increases from the first part to the second part. According to one embodiment, each second part protrudes or extends inward from the fork. In other words, each second protruding part can optionally reduce the width of the opening of the fork separating the two horns, or reduce the widening of the opening of the fork separating the two horns, as is generally known in the prior art.

[0008] According to one embodiment, each of the second parts is at least, - The free end of the fork, particularly the distal contact end formed at the free end of the horn of the fork, - comprising a radial surface essentially oriented along a direction perpendicular to the pivot direction of the locking movable part, - The distal contact end is positioned to contact the inertial element when the watch movement is subjected to an impact during additional upward or downward movement by the inertial element, preferably when the drive part is not engaged with or disengaged from the fork. and / or - The radial surface is positioned to contact the drive portion of the inertial element if the watch movement is struck during additional upward or downward movement by the inertial element, preferably during additional upward or downward movement by the inertial element when the drive portion is engaged with or disengaged from the fork. According to this embodiment, two functional parts can be distinguished on each second part. The first functional part is a distal or end portion that can contact the inertial element (but not the drive portion) if it is struck while the drive portion of the inertial element is disengaged from the fork. The second functional part is a radial, transverse, or internal portion located between the first functional part and the first part that can contact the drive portion of the inertial element if it is struck while the drive portion of the inertial element is in the process of engaging with or disengaging from the fork.

[0009] According to one embodiment, each first portion is connected to a second portion by a third portion, a so-called connecting portion, and preferably, a reversal of the slope and / or a recess is located in the third portion. In particular, at the level of the third portion, the so-called connecting portion, a change in the sign of the derivative (i.e., having an inflection point or extremum) or a change in the direction of the slope may be provided when moving from the first portion to the second portion. According to one embodiment, each first portion is adjacent to a second portion, and the transition between each first portion and each second portion forms or defines the third portion.

[0010] According to one embodiment, a first tangent to a first portion forms an angle δ of less than 180 degrees with a second tangent to a second portion positioned to protrude from the first portion, when the first portion and the second protruding portion are viewed from the inside of the fork. In particular, the first tangent may be tangent to the first portion at the level of the intersection point between the second tangent and the first portion. More specifically, a plane of symmetry of the fork may be defined, and the second tangent may be parallel or substantially parallel to the plane of symmetry of the fork.

[0011] According to one embodiment, each first portion preferably moves away from the axis of rotation of the locking movable part and comprises at least one plane and at least one curved surface. Preferably, the at least one curved surface may include a surface with a circular or arcuate cross-section, or a surface with a circular or arcuate contour.

[0012] According to one embodiment, each second part includes at least one curved surface. According to one embodiment, each second part includes a surface with a circular or arc-shaped cross-section, or a surface with a circular or arc-shaped contour.

[0013] According to one embodiment, - The locking means and / or impulse receiving means are positioned at a radial distance R41 from the rotation axis of the locking movable part. -The second part, the so-called contact part, is positioned at a radial distance R4 from the rotation axis of the locking movable part. R4 > R41, preferably R4 > 1.4.R41, and preferably R4 > 1.8.R41.

[0014] In particular, the radial distance R41 is -A first radial distance Ra41 from the rotation axis of the locking movable part, the first radial distance Ra41 from the rotation axis to which the impulse receiving means extends, - The end of the locking means is located between the second radial distance Ra43 from the rotation axis of the locking movable part where it is positioned.

[0015] According to one embodiment, the locking movable part is - Being planar, or formed by planar components, and / or - No darts, and / or -Manufactured as a single part, or formed by an assembly of at least two components. - Made from silicon and manufactured on a wafer by etching, or manufactured by metal growth in an electroformed mold, or manufactured by conventional cutting of a metal sheet, or manufactured from metallic glass or amorphous material, -A key feature is that it does not require an attached pallet.

[0016] According to one embodiment, the impulse receiving means is arranged to receive a tangential impulse from at least one escapement movable part.

[0017] According to one embodiment, the locking movable part is symmetrical or substantially symmetrical with respect to a central plane that passes between the two horns or through an opening separating the two horns and through the axis of rotation of the locking movable part.

[0018] According to one embodiment, the locking movable part is arranged to interact with two escapement movable parts.

[0019] A second aspect is a regulator device for a clock movement, - An escapement device comprising a locking movable part according to a first embodiment, and at least one escapement movable part arranged to engage with a clock gear train such as a drive gear train and receive driving force, - An oscillator comprising an inertial element provided with a driving part such as a tooth or a pin, and an elastic return means coupled to the inertial element, - Provided with, for example, two outer abutting parts formed by a dot pin or a detent pin, During the rest phase, the fork of the locking movable part is arranged to abut against one of the two outer abutting parts and the driving part in the case of knocking or knocking of the oscillator. The first horn of the fork is arranged to abut against the driving part, and the second horn of the fork is arranged to abut against one of the two outer abutting parts.

[0020] According to one embodiment, the triangle having as vertices the rotation axis of the locking movable part, the rotation axis of the first escapement movable part, and the rotation axis of the second escapement movable part has an angle of less than 120 degrees, preferably less than 90 degrees, preferably less than 80 degrees at the vertex centered on the rotation axis of the locking movable part. According to one embodiment, the locking movable part is not arranged between the rotation axis of the first escapement movable part and the rotation axis of the second escapement movable part. According to one embodiment, the rotation axis of the locking movable part is included in the triangle, and its vertices are respectively the rotation axis of the escapement movable part and the rotation axis of the oscillator. According to one embodiment, it is possible to identify a circle centered on the rotation axis of the locking movable part, passing through the rotation axis of the first escapement movable part and the rotation axis of the second escapement movable part, and passing through at least a part of the oscillator or the template. According to one embodiment, the locking movable part does not have an elongated shape or a very elongated shape. Typically, the length of the locking movable part is less than twice the maximum width of the locking movable part. According to one embodiment, the part farthest from the rotation center of the locking movable part is arranged at a radius substantially equal to the maximum width of the locking movable part, and the overall shape of the locking movable part is compact and uniform (without significant protrusions), whereby its moment of inertia (strongly affected by the square of the distance to the rotation axis) is limited.

[0021] According to one embodiment, the escapement mechanism is not of the direct impulse type. In other words, at least one escapement movable part never directly interacts with the inertial element. According to one embodiment, the locking movable part is the only member of the escapement mechanism that directly interacts with the inertial element. According to one embodiment, the locking movable part forms a single member of the escapement mechanism positioned between the at least one escapement movable part and the inertial element, in terms of operation.

[0022] A second aspect is a regulator device for a clock movement, - An escapement device comprising a locking movable part according to a first embodiment, and at least one escapement movable part arranged to engage with a gear train of a clock movement, such as a drive gear train, and to receive driving force, - An oscillator comprising an inertial element having a drive part such as teeth or pins, and an elastic return means coupled to the inertial element, The present invention relates to a regulator device in which a locking movable part is pivotably mounted and has a oscillating motion with an amplitude of more than 30 degrees, preferably more than 40 degrees, preferably more than 45 degrees, between two consecutive resting positions. In such an escapement device, the impulse is typically tangential. In other words, during the impulse, the locking movable part and the escapement movable part that transmits the impulse pivot in opposite rotational directions. This reduces sensitivity to friction.

[0023] According to one embodiment, the escapement device is -A first escapement movable part pivotably mounted around a first rotation axis, comprising a plurality of first locking surfaces and a first set of drive teeth arranged to engage with the gear train of a clock movement and interacting with the locking means of a locking movable part, - A second escapement movable part is pivotably mounted around a second rotation axis and comprises a plurality of second locking surfaces that interact with locking means of a locking movable part, and a second drive gear row that engages with a first drive tooth set to transmit the driving force of the first escapement movable part to the second escapement movable part.

[0024] According to one embodiment, during the impulse stage imparted to the locking movable part by the first escapement movable part, the impulse is in the tangential direction. According to one embodiment, during the impulse stage imparted to the locking movable part by the second escapement movable part, the impulse is in the tangential direction. According to one embodiment, the impulse stage imparted to the locking movable part by the first escapement movable part is executed during the first alternation of the rocking, and the impulse stage imparted to the locking movable part by the second escapement movable part is executed during the second alternation of the rocking.

[0025] According to one embodiment, - The drive part is arranged at a radial distance R5 from the rotation axis of the inertial element, - The second part, the so-called abutting part, is arranged at a radial distance R4 from the rotation axis of the locking movable part, 0.8.R5 < R4 < 1.2.R5, preferably 0.9.R5 < R4 < 1.1.R5. According to this embodiment, the locking movable part is significantly more compact than the angle of the escapement device having a Swiss-type angle.

[0026] According to one embodiment, [[ID=十六]]- The drive part has a semi-circular shape, and / or - The inertial element includes a cylindrical side surface forming an abutting wall arranged to abut against one of the two second parts, the so-called abutting part, when impacted by the movement of the clock during the rest stage, - The drive part is arranged at a radial distance R5 from the rotation axis of the inertial element, - The abutting wall is arranged at a radial distance R6 from the rotation axis of the inertial element, Preferably R5 > R6, preferably R5 > 1.2.R6, preferably R5 > 1.3.R6.

[0027] A third aspect of the present invention may relate to a clock comprising a regulator device according to the second aspect.

[0028] A fourth aspect of the present invention, which can be made independent or combined with the above aspects, is an escapement device for a clock movement, -A first escapement movable part, pivotably mounted around a first rotation axis, which is arranged to engage with a gear train of a watch movement, such as a drive gear train, to receive a starting force, and comprises a plurality of first locking surfaces and a first drive tooth set, -A second escapement movable part, pivotably mounted around a second rotation axis, comprising a plurality of second locking surfaces and a second drive tooth set that engages with the first drive tooth set to transmit driving force from the first escapement movable part to the second escapement movable part, - An inertial element is pivotably mounted around a third axis of rotation and is arranged to provide oscillations including a first alternation and a second alternation, -A locking movable part is pivotably mounted around a fourth rotation axis, and the locking movable part is -A first surface locking portion is positioned to contact one of a plurality of first locking surfaces and to lock the rotation of the first escapement movable part, -A second surface locking portion is positioned to contact one of a plurality of second locking surfaces and to lock the rotation of the second escapement movable part, - An impulse receiving means arranged to receive a first impulse from a first escapement movable part during the first alternation of the oscillation of the inertial element, and to receive a second impulse from a second escapement movable part during the second alternation of the said oscillation of the inertial element, The present invention relates to an escapement device comprising: an impulse transmission means arranged to transmit at least a portion of a first impulse or a second impulse to an inertial element.

[0029] According to one embodiment, the first surface locking portion is positioned such that the first force exerted on the locking movable portion by the first escapement movable portion locked by the first surface locking portion passes substantially near the fourth rotation axis, and in particular, passes through the fourth rotation axis.

[0030] According to one embodiment, the second surface locking portion is positioned such that the second force exerted on the locking movable portion by the second escapement movable portion locked by the second surface locking portion passes substantially near the fourth rotation axis, and in particular, passes through the fourth rotation axis.

[0031] According to one embodiment, the first escapement movable part and / or the second escapement movable part may be a monoblock, single-piece, or single-planar component made from a single material. According to one embodiment, a plurality of first locking surfaces and a first set of drive teeth may be arranged on the same plane. According to one embodiment, a plurality of second locking surfaces and a second set of drive teeth may be arranged on the same plane.

[0032] According to one embodiment, the first escapement movable part and / or the second escapement movable part may be a two-plane component formed, for example, by two separate rings or by a multi-level component. According to one embodiment, a plurality of first locking surfaces and a first set of drive teeth may be arranged on two different planes. According to one embodiment, a plurality of second locking surfaces and a second set of drive teeth may be arranged on two different planes.

[0033] The escapement device according to the above embodiment provides improved operational safety because the first or second locking force passes through the fourth rotation axis, or substantially passes through the fourth rotation axis. In the locked position (or resting position), the locking movable part is not subjected to any oscillating torque, thereby enabling a stable locked position.

[0034] It can be noted that the escapement device in the above implementation configuration maintains the oscillation of the inertial element by transmitting two impulses to the inertial element during the same oscillation (outward and return movement) of the inertial element. Specifically, the locking movable part is -During the first alternation of the inertial element (for example, the forward movement that constitutes the first half of the oscillation), a first impulse can be received from the first escapement movable part and transmitted to the inertial element. - During the second alternation of the inertial element (for example, the return movement that constitutes the latter half of the oscillation under consideration), a second impulse can be received from the second escapement movable part and transmitted to the inertial element.

[0035] According to one embodiment, the first force exerted on the locking movable part by the first escapement movable part, which is locked by the first surface locking portion, passes substantially near the fourth rotation axis, and in particular through the fourth rotation axis, to ensure that there is no oscillating torque on the locking movable part during the resting phase. In other words, the first force exerted on the locking movable part by the first escapement movable part, which is locked by the first surface locking portion, passes substantially near the fourth rotation axis, and in particular through the fourth rotation axis, to ensure a stable resting position of the locking movable part during the resting phase. During the resting phase, the locking movable part engages only with the first escapement movable part.

[0036] According to one embodiment, the second force exerted on the locking movable part by the second escapement movable part, which is locked by the second surface locking portion, passes substantially near the fourth rotation axis, and in particular through the fourth rotation axis, to ensure that there is no overturning torque on the locking movable part during the resting phase. In other words, the second force exerted on the locking movable part by the second escapement movable part, which is locked by the second surface locking portion, passes substantially near the fourth rotation axis, and in particular through the fourth rotation axis, to ensure a stable resting position for the locking movable part during the resting phase. During the resting phase, the locking movable part engages only with the second escapement movable part.

[0037] According to one embodiment, the locking movable part is mounted by a free pivot connection. According to one embodiment, the locking movable part is mounted on the watch bridge and / or plate by a free pivot connection. According to the embodiment, the locking movable part does not include an elastic return device, and / or the escapement device does not include an elastic return device that couples with or engages with the locking movable part to hold or return it to a resting position (this is understood not to exclude the fact that the elastic member of the oscillator coupled to the inertial element (conventionally a spiral) causes the escapement movable part to disengage due to the sustained movement of the inertial element, and then the movement of the locking movable part). In other words, the displacement of the locking movable part is caused by the inertial element and / or the first escapement movable part and / or the second escapement movable part. In particular, during the normal operation of the escapement device, the displacement of the locking movable part is caused exclusively by the inertial element and / or the first escapement movable part and / or the second escapement movable part.

[0038] According to one embodiment, the escapement device is not a direct impulse escapement device. In other words, according to this embodiment, the first escapement movable part and / or the second escapement movable part do not directly interact with an inertial element (or, a member of the oscillator, typically formed by a spiral pair).

[0039] According to one embodiment, the inertial element comprises a balance wheel. In particular, the inertial element may comprise a balance wheel, a balance staff, and a plate having a pin coupled to a spiral spring.

[0040] According to the embodiment, the first surface locking portion is arranged to lock the rotation of the first escapement movable portion, i.e., the movement of the escapement of the first escapement movable portion, and / or the second surface locking portion is arranged to lock the rotation of the second escapement movable portion, i.e., the movement of the escapement of the second escapement movable portion.

[0041] According to the embodiment, the first surface locking portion is configured such that a first friction cone, constructed around the point of application of force exerted on the locking movable portion by the first escapement movable portion, comprises, encompasses, or passes through a fourth rotation axis, and / or the second surface locking portion is configured such that a second friction cone, constructed around the point of application of force exerted on the locking movable portion by the second escapement movable portion, comprises, encompasses, or passes through a fourth rotation axis.

[0042] According to the embodiment, the first surface locking portion has a first normal direction that passes through or substantially passes through the fourth rotation axis, and the second surface locking portion has a second normal direction that passes through or substantially passes through the fourth rotation axis.

[0043] According to one embodiment, -During the first locking stage, a first line passes through the fourth rotation axis and through the contact point between the first escapement movable part and the first surface locking part, -During the second locking stage, a second line passes through the fourth rotation axis and through the contact point between the second escapement movable part and the second surface locking part, They define an acute angle α to each other. In other words, -As the first vertex, the fourth axis of rotation, - As a second vertex, the contact point between the first escapement movable part and the first surface locking part, -A triangle can be constructed having a third vertex, which is the point of contact between the second escapement movable part and the second surface locking part. According to the above embodiment, this triangle has an acute angle at the level of its first vertex. Such a configuration makes it possible to ensure a reduction in the trajectory of the locking movable part between the first locking position (of the locking movable part) in which the first escapement movable part is locked (by the locking movable part) and the second locking position (of the locking movable part) in which the second escapement movable part is locked (by the locking movable part). This results in a compact and advantageous assembly compared to a plane passing through the respective axes of rotation of the inertial element and the locking movable part.

[0044] According to one embodiment, the impulse receiving means for the locking movable part is -A first impulse input section, positioned to receive the first impulse from the first escapement movable part during the first rotation of the balance wheel, - A second impulse input section is provided, which is positioned to receive a second impulse from a second escapement movable part during the second rotation of the balance wheel.

[0045] According to one embodiment, the first impulse input portion is adjacent to the first surface locking portion, and the second impulse input portion is adjacent to the second surface locking portion.

[0046] According to one embodiment, the first impulse input portion is separated from the first surface locking portion by the first resting tip, and the second impulse input portion is separated from the second surface locking portion by the second resting tip.

[0047] According to one embodiment, -During the first impulse phase, a third line passes through the fourth rotation axis and through the contact point between the first escapement movable part and the first impulse input part, -During the second impulse phase, the fourth line passes through the fourth rotation axis and through the contact point between the second escapement movable part and the second impulse input part, - They define an acute angle γ to each other.

[0048] According to one embodiment, the angle γ is within the range of 50 to 70 degrees.

[0049] According to one embodiment, angle γ is less than angle α. That is, the first and second impulse input portions are positioned between the first and second surface locking portions.

[0050] According to one embodiment, angle γ can be greater than angle α. In other words, the first and second surface locking portions are positioned between the first and second impulse input portions. Such an embodiment makes it possible to symmetrically distribute the displacement caused by any gap between the escapement movable parts on the rotation axis of each escapement movable part. [Brief explanation of the drawing]

[0051] Other features and advantages of the present invention will not be limited to examples and will become clearer upon reading the following detailed description of one embodiment of the present invention shown in the accompanying drawings.

[0052] [Figure 1] The present invention illustrates a regulator device for a clock movement, comprising, on the one hand, an escapement device comprising a locking movable part, a first escapement movable part, and a second escapement movable part, and on the other hand, a oscillator comprising an inertial element with a drive part.

[0053] [Figure 2] Figure 1 shows a detailed view of the locking and movable part of the regulator device.

[0054] [Figure 3] Figure 2 shows a detailed view of the fork of the locking movable part.

[0055] [Figure 4] Another configuration of the fork of the locking movable part shown in Figure 2 is presented.

[0056] [Figure 5] Figure 1 shows the regulator device during the pause phase of the escapement device, following an impact that causes the locking movable part to perform angular rotation along the first direction S1.

[0057] [Figure 6] Figure 1 shows the regulator device during the pause phase of the escapement device, following an impact that causes the locking movable part to perform angular rotation along the second direction S2.

[0058] [Figure 7] This shows a hypothetical regulator device with a hypothetical locking movable part, having the same configuration as shown in Figure 6.

[0059] [Figure 8] Figure 6 shows the regulator device, specifically illustrating the vibration of the locking movable part at the level of the horn of the locking movable part.

[0060] [Figure 9] Figure 1 shows the regulator device during the knocking of the oscillator while the escapement device is in a resting phase.

[0061] [Figure 10] Figure 1 shows details of the regulator device, illustrating the total oscillation angle of the locking movable part that occupies two consecutive resting positions.

[0062] [Figure 11] A very simplified fork of the first modified embodiment of the locking movable part, in particular the fork of the locking movable part of the regulator device in Figure 1, is shown.

[0063] [Figure 12] A highly simplified fork representing a second modified embodiment of the locking movable part, particularly the fork of the locking movable part of the regulator device shown in Figure 1, is also shown.

[0064] [Figure 13] A modified example of the regulator device of Figure 1 is shown, including a third modified embodiment of the locking movable part of the regulator device of Figure 1, particularly during the idle phase of the escapement device.

[0065] [Figure 14] Figure 13 shows the regulator device during the impulse phase of the escapement device, following the pause phase shown in Figure 13.

[0066] [Figure 15] Figure 13 shows the regulator device during the idle phase of the escapement device, following the impulse phase shown in Figure 14.

[0067] [Figure 16] Figure 13 shows the regulator device during the shutdown phase of the escapement device, following the shutdown phase shown in Figure 15.

[0068] [Figure 17] Figure 13 shows the locking movable part of the regulator device in detail.

[0069] [Figure 18] Figure 13 shows in detail the locking means and impulse receiving means of the locking movable part of the regulator device. [Modes for carrying out the invention]

[0070] Figure 1 shows a regulator device for a watch movement, - An escapement device 10 comprising a locking movable part 4, a first escapement movable part 1, and a second escapement movable part 2, - An oscillator 20 (typically, may be provided with a spiral spring or a flexible element) comprising an inertial element (here, the balance wheel 51) that pivots around a third rotation axis A5 and has a drive part (here, a pin 511a) positioned on the plate 511 of the balance wheel 51, and an elastic return member (not shown) connected to the balance wheel 51, -This example shows a regulator device comprising two outer contact portions, which are formed by dot pins 91' and 92', but which may also be provided with detent pins.

[0071] In detail, the escapement device 10 is, The first escapement movable part 1 is pivotably mounted around a first rotation axis A1 and comprises a plurality of first locking surfaces 121a formed on a first locking tooth 121 that is arranged to engage with the gear train of the watch movement via a pinion 13 and interacts with the locking means of the locking movable part 4, and a first drive tooth set 111. The second escapement movable part 2 is pivotably mounted around a second rotation axis A2 and comprises a plurality of second locking surfaces 221a formed on a second locking tooth 221 so as to interact with the locking means of the locking movable part 4, and a second drive tooth set 211 engaged with a first drive tooth set 111 so as to transmit the driving force of the first escapement movable part 1 to the second escapement movable part 2. The locking movable part 4 is rotatable around the fourth rotation axis A4. -A locking means arranged to lock the first escapement movable part 1 or the second escapement movable part 2 during the pause phase, - An impulse receiving means arranged to receive an impulse from the first escapement movable part 1 or the second escapement movable part 2 during the impulse phase, - Equipped with a fork 400 with horns 410 and 420.

[0072] Figure 2 shows in detail the locking movable part 4 of the regulator device in Figure 1. On the other hand, the locking movable part 4 shown in Figure 2 is -In this example, a locking means formed by first and second surface locking portions 43a, 43b, which is arranged to lock the first escapement device 1 or the second escapement movable part 2 via one of the first locking surfaces 121a and one of the second locking surfaces 221a, respectively, during the resting phase, -In this example, an impulse receiving means is formed by a first impulse input portion 41a arranged to receive a first impulse from the first escapement movable part 1 during the first alternation of the balance wheel 51, and a second impulse input portion 41b arranged to receive a second impulse from the second escapement movable part 2 during the second alternation of the balance wheel 51. - A fork 400 having two horns 410, 420, each horn having inner walls 411, 421, the inner walls are • Two first parts 411a, 421a, which are so-called impulse parts, are arranged to face each other and transmit at least a portion of the received impulse to pin 511a of the Temp 51 during the impulse phase. The escapement 10 comprises a fork with two second parts 411b, 421b, so-called contact parts, which are positioned opposite each other and each protrudes toward one of the first parts 411a, 421a, and each is positioned to contact the contact wall 511b of the plate 511 if struck by the movement of the clock during the resting phase. During normal operation of the escapement 10 (especially without impact), it will be understood that only the two first parts 411a, 421a contact or interact with the pin 511a. During this normal operation, the second parts 411b, 421b do not interact with the pin 511a or the plate of the balance wheel 511.

[0073] More specifically, as can be seen in Figures 2, 3, and 4, each horn 410, 420 is provided with inner walls 411, 421, and the inner walls are -A first portion 411a, 421a, so-called impulse portion, formed from the base of the fork, intended to interact with the pin 511a of the plate 511 of the temp 51, -The ends B1, B2 are provided with means for abutment, in particular lines, edges, or surfaces, that open at the free ends of each horn, forming means for abutment, in particular lines, edges, or surfaces, intended to optionally interact with the wall 511b of the plate 511. The first and second parts may be attached by third parts 411c, 421c, so-called connecting parts, in particular, such that the second part is an extension of the first part.

[0074] It should be noted that the first impulse portions 411a, 421a may take the form of a single plane or curved surface, or may consist of several continuous or discontinuous surfaces. In the modified embodiment shown in Figure 4, the first impulse portions 411a, 421a are, in particular, composed of a first plane 411a1, 421a1 and a second curved surface 411a2, 421a2 (a circular arc) with a radius of curvature R1, the second surface being formed as an extension of the first surface.

[0075] The second portions 411b, 421b can take the form of a single planar or curved surface, or can consist of several continuous or discontinuous surfaces. In the modified embodiments shown in Figures 2 to 4, these second portions 411b, 421b take the form of a single curved surface 411b, 421b (of a circular arc) having a radius of curvature R2 and vertices S1, S2. These surfaces 411b, 421b are connected at the level of ends B1, B2 to the distal walls 412, 422 of the locking movable portion 4, which are intended to reach around the plate 511 or on the opposite side of wall 511b between the additional arcs of the oscillator. These distal walls 412, 422 are contained between the inner walls 411, 421 and the outer walls 413, 423 of the horns 410 and 420, respectively. Each of the outer walls 413 and 423 partially defines the contour of the locking movable part 4 and extends along the longitudinal directions D410 and D420, respectively. Generally, the longitudinal directions D410 and D420 can be considered to define the longitudinal directions of the respective horns 410 and 420.

[0076] The second portions 411b and 421b constitute projections that protrude from the inner walls 411 and 421 of the horns 410 and 420, respectively. To illustrate these protrusions, the horns 410 and 420 have a thickness E2 measured perpendicular to the longitudinal directions D410 and D420 at the level of the second portions 411b and 421b, particularly at the level of the ends B1 and B2, and the thickness E2 is considered to be strictly greater than the thickness E1 measured at the level of the first impulse portions 411a and 421a, which is also considered to be measured perpendicular to the longitudinal directions D410 and D420.

[0077] In certain configurations, this thickness E2 is greatest at the levels of vertices S1 and S2 of the second portions 411b and 421b, respectively. At these vertices, contact is likely to occur between the second portions 411b and 421b and the impulse pin 511a.

[0078] In certain configurations, the thickness E2, measured at the levels of vertices S1 and S2, is approximately equal to 1.5.E1. More generally, it can be considered that E2 > E1, or even more so E2 > 1.1.E1, or even more so E3 > 1.2.E1, or even more so E3 > 1.3.E1.

[0079] Note that in FIG. 4, the radius of curvature R2 is less than the radius of curvature R1. In a specific configuration, R1 is about 5.R2. More generally, it can be considered that R2 < R1, or further 2.R2 < R1, or further 4.R2 < R1.

[0080] Supplementary, the first impulse portions 411a, 421a and the second portions 411b, 421b can be considered to form a convex angle δ, that is, strictly less than 180 degrees, when viewed from the inside of the fork 400. In particular, a first tangent T1 to the first portions 411a, 421a and a second tangent T2 to the second portions 411b, 421b can be constructed, and these tangents form a convex angle δ when these portions are viewed from the inside of the fork. In particular, the first tangent T1 can contact the first portion at the level of the intersection of the second tangent T2 and the first portion. More specifically, a symmetry plane of the fork can be defined, and the second tangent T2 can be parallel or substantially parallel to the symmetry plane of the fork. In particular, it is again possible to construct a first tangent T1 to the first portions 411a, 421a and a second half-line D2 passing through B1, B2, which form a convex angle δ when these portions are viewed from the inside of the fork.

[0081] In the representation shown in FIG. 4, the second tangent T2 is substantially parallel to the symmetry plane P4 of the fork, and the angle δ formed by T1 and T2 has a value of approximately 160 degrees. This can vary from 70 degrees to 179 degrees, particularly according to the respective positions of the tangents T1 and T2. More generally, it is possible to identify a first half-line D1 passing through at least one point of the first portions 411a, 421a and a second half-line D2 passing through at least one point of the second portions 411b, 421b, particularly B1 and B2 respectively, which form a convex angle δ when these portions are viewed from the inside of the fork.

[0082] In the configuration of the locking movable part 4 shown in FIGS. 2 to 4, the following points can be noted. - The locking movable part 4 is symmetric with respect to the plane P4, -The locking movable part 4 is a planar component having only one level, -The locking movable part 4 does not have a dart. - The first and second impulse input portions 41a, 41b are positioned between the first and second surface locking portions 43a, 43b. - The second portions 411b, 421b are positioned at a distance or radius R4 from the fourth rotation axis A4, and the first surface locking portions 43a, 43b and / or the first and second impulse input portions 41a, 41b are positioned at a distance or radius R41 from the fourth rotation axis A4, where R4 > R41, preferably R4 > 1.4.R41, preferably R4 > 1.8.R41. -Angle γ is less than angle α, The angle γ is, The first impulse input portion 41a is defined between line S3 connecting to the fourth rotation axis A4 and line S4 connecting to the second impulse input portion 41b connecting to the fourth rotation axis A4. The angle α is, The first surface locking portion 43a is defined between line S1 connecting to the fourth rotation axis A4 and line S2 connecting to the second surface locking portion 43b connecting to the fourth rotation axis A4.

[0083] Returning to Figure 1, it should be noted that the escapement device 10 is of the tangential double impulse type. The escapement device 10 shown in Figure 1 is characterized by operational safety made possible by the fact that, during the pause phase in Figure 1, the locking force F generated by the contact between the first escapement movable part 1 and the locking movable part 4 passes (or substantially passes) the fourth rotation axis A4 of the locking movable part 4, in particular, through the concave first and second surface locking portions which are molded to provide good locking safety. Therefore, during a given pause phase, the locking movable part 4 is not subjected to any oscillating torque, thereby making it possible to obtain a stable locking position.

[0084] For example, in scenarios involving strong impacts such as a watch being dropped, operational safety can be further improved by providing a contact portion to limit the angular trajectory of the locking movable portion 4 when it is normally immobilized by one or the other of its first and second surface locking portions.

[0085] Figure 5 shows the regulator device of Figure 1 during a pause phase of the escapement device following an impact that causes the locking movable part to rotate angularly in a first direction S1. In this scenario, first outer contact parts, for example, in the form of dowel pins 91 and 92 or detent pins, may be provided to restrict the angular trajectory of the locking movable part in a given first direction S1. Thus, the trajectory of the locking movable part 4 is restricted in the rotational direction S1, even if an unexpected impact occurs.

[0086] Figure 6 shows the regulator device of Figure 1 during the pause phase of the escapement device, following an impact that angularly rotates the locking movable part in the second direction S2. In this scenario, to further improve operational safety, it is possible to avoid the teeth of the first escapement movable part 1, which normally contact the first surface locking portion 43a of the locking movable part 4, coming into contact with the adjacent impulse input portion, thus potentially inducing an accidental displacement of the locking movable part 4 before the disengagement phase from the balance wheel 51.

[0087] For this purpose, preparations are made at the level of the free ends of the horns 411b and 421b of the locking movable part 4 to form second portions 410 and 420, so-called contact portions. These second portions 411b and 421b are characterized by being composed of the ends of projections protruding from the inner walls of the horns 410 and 420, in order to keep the fourth rotation axis A4 of the locking movable part 4 as far away as possible from the contact area between the locking movable part 4 and the contact wall 511b of the temperature plate 511 (its oscillation is maintained by the escapement). Thus, angular oscillation of the locking movable part 4 is minimized, and it is impossible for the locking teeth of the escapement movable part, which normally come into contact with one of the first and second surface locking portions 43a and 43b of the locking movable part 4, to come into contact with the adjacent impulse input portions 41a and 41b. It should be noted that for the same angle of one locking movable part 4, the projections of the horns 410 and 420 undergo a greater displacement than other parts of the locking movable part 4, in order to separate the locking movable part 4 from the fourth rotation axis A4.

[0088] Figure 7 shows a hypothetical regulator device with a hypothetical locking movable part, having the same configuration as shown in Figure 6. For comparison with Figure 6, Figure 7 shows an escapement device 10 having the same configuration as Figure 6, but with a hypothetical locking movable part 4F, wherein each of its horns has no projections at its free end, and its inner wall is shaped only to face the impulse function. The locking teeth or locking surface of the escapement movable part can then contact the impulse input portion, as shown in the area enclosed by the dotted circle at the bottom of the figure.

[0089] Figure 8 shows the regulator device of Figure 6, particularly illustrating the oscillation of the locking movable part in the horn of the locking movable part. The second parts 411b and 421b, the so-called contact parts, also have the advantage of minimizing the oscillation of the horn, i.e., the angle Ω that is easily accidentally moved by the locking movable part 4 at any end or beginning of the resting phase, as shown in Figure 8, when the pin 511a is in the engagement or disengagement phase with the fork 400. Any contact between the second parts 411b and 421b, the so-called contact parts, and the impulse pin 511a ensures that the locking teeth or locking surfaces of the escapement movable part, which normally contact one of the first and second surface locking parts 43a, 43b of the locking movable part 4, cannot come into contact with the adjacent impulse input parts 41a, 41b.

[0090] Generally, the second parts 411b and 421b, the so-called contact parts, also have the advantage of spreading the horns 410 and 420 at their free ends, and thus preventing the locking movable part 4 from swinging out, so that the horns 410 and 420 can always be in contact with the wall of the balance plate between the additional arc made by the balance, or in other words, when the balance plate pin is not located between the two horns. Figure 9 shows the regulator device of Figure 1 during oscillator knocking while the escapement device is in a resting phase. The general arrangement makes it possible to ensure that the locking movable part 4 rotates in the first direction S1 to contact the oscillating pin 91.

[0091] Thus, the horns 410, 420 with projections replace the darts known in the prior art in their anti-swing function. This is emphasized by the fact that the locking movable part 4 of the escapement device 10 has a swing angle β of about 50 degrees, which is much larger than the swing angle of a typical Swiss lever escapement, which is about 15 degrees. This makes it possible to disengage the impulse pin 511a from the fork 400, while, where applicable, it allows interaction between the horns 410, 420 and the contact wall 511b of the balance plate 511 between the balance wheel 51, and more generally, between the additional arc of the oscillator. Figure 10 shows details of the regulator device of Figure 1 and the total swing angle β of the locking movable part 4 occupying two consecutive resting positions.

[0092] Figure 11 shows a highly simplified fork 400A of a first modified embodiment of the fork 400 of the locking movable part 4 of the regulator device of Figure 1. Note that in this first highly simplified modified embodiment, there is a first half-line D1 collinear with the first parts 411a, 421a, and a second half-line D2 passing through a single point of the second parts 411b, 421b, which corresponds to or can be distinguished from points B1, B2.

[0093] Figure 12 shows a highly simplified fork 400B of a second modified embodiment of the fork 400 of the locking movable part 4 of the regulator device in Figure 1. Note that in this second highly simplified modified embodiment, there is a first half-line Dq1 that is collinear with the first parts 411a, 421a, and a second half-line D2 that is collinear with the second parts 411b, 421b and therefore passes through points corresponding to B1, B2.

[0094] Whatever the modifications under consideration, referring to Figures 2, 3, 4, 11, and 12, the inner walls 411 and 421, and in particular the contact means B1 and B2, are symmetric with respect to a plane P4 passing through the fourth axis of rotation A4 of the locking movable part 4. More generally, the horns 410 and 420 are symmetric with respect to this plane P4, i.e., the walls 412 and 422, as well as the outer walls 413 and 423, are also symmetric with respect to this same plane.

[0095] Preferably, the impulse pin 511a has a crescent shape so that it can interact as well as possible with the second parts 411b, 421b and thus minimize horn beats, on the one hand, allowing insertion into the fork and interaction with one or the other of the first parts 411a, 421a and thus allowing disengagement of the balance wheel 51 and transmission of impulses to this same balance wheel during the balance wheel's alternation.

[0096] Under normal operation of the escapement device 10, the first parts 411a, 421a are intended to interact only with pin 511a. In high-intensity impact scenarios, parts 411b, 421b are intended to interact with the plate wall 511b via contact means B1, B2, or with the impulse pin 511a via their respective vertices S1, S2. The outer walls 413, 423 are intended to interact only with the detent pins 91, 92 (or alternatively, the detent pin) or with pin 511a during knocking of the oscillator.

[0097] Due to the characteristics of the escapement device having tangential double impulses, particularly the implementation of the two escapement movable parts, the locking movable part 4 has a large oscillation angle β of about 50 degrees. Therefore, even though the form of this locking movable part 4 is particularly compact in the order of the forms of the two escapement movable parts and the balance plate 511, the displacement of the fork 400 is very large compared to the displacement of the Swiss lever fork, and thus the space dedicated to the escapement function in the wristwatch can be reduced.

[0098] In particular, in the structure illustrated in Figure 10, the radius R5 separating the pin 511a from the third rotation axis A5 of the balance wheel corresponds to, or substantially corresponds to, the radius R4 of the smallest circle C4 centered on axis A4, and the locking movable part 4 can be accommodated within it.

[0099] In the modified embodiment, it is conceivable that the body or fork of the locking movable part 4 may be extended in order to maximize the displacement of the free ends of the horns 410 and 420, while including the swing angle of the locking movable part 4.

[0100] Figure 13 shows a modified version of the regulator device of Figure 1, including a third modified embodiment of the locking movable part of the regulator device of Figure 1, in particular, during the idle phase of the escapement device. In this third modified embodiment, a new shape of the locking movable part is shown, which is characterized by having first and second surface locking portions 43a', 43b' positioned between two impulse input surfaces 41a', 41b', as can be seen in detail in Figures 17 and 18.

[0101] As will be detailed below, such a locking movable part 4' ensures that the reaction forces of a given escapement movable part facing the locking movable part 4' and the other escapement movable parts are positioned on both sides of the plane passing through the respective axes of rotation of the locking movable part and the given escapement movable part.

[0102] Advantageously, such a configuration provides an operating method that enables optimized control of the assembly gap, particularly with respect to the symmetrical displacement (during separate operating stages) of the pivots of the two escapement movable parts with respect to the plane passing through the respective rotation axes of the locking movable part and the oscillator.

[0103] Controlling this assembly gap helps define a robust escapement mechanism.

[0104] Figure 13 shows a regulator device for a watch movement, similar to those in Figures 1 to 10. - An escapement device 10' comprising a locking movable part 4', a first escapement movable part 1', and a second escapement movable part 2', - An oscillator 20' (typically equipped with a spiral spring or a flexible element) comprising an inertial element (here, the balance wheel) having a drive portion (here, a pin 511a') positioned on the plate 511' of the balance wheel 51, and an elastic return member (not shown) coupled to the balance wheel, -This example shows a regulator device comprising two outer contact portions, which are formed by dot pins 91' and 92', but which may also be provided with detent pins.

[0105] Figures 13 to 16 show a regulator device equipped with an escapement device 10', and Figures 17 and 18 show in detail a third specific modification of the locking movable part 4'. Note that the shape of the fork 400' of the locking movable part 4' is independent of the shapes of the first and second surface locking portions 43a', 43b' and / or the first and second impulse input portions 41a', 41b' of this same locking movable part 4'.

[0106] Figure 18 shows in detail the first and second concave locking portions 43a' and 43b', respectively, which consist of surfaces 43a1', 43a2' and 43b1', 43b2' that form V with obtuse angles βa' and βb' of approximately 165 degrees.

[0107] Figure 18 particularly highlights the angle α separating the first line S1' connecting the first surface locking portion 43a' to the rotation axis A4' and the second line S2' connecting the second surface locking portion 43b' to the rotation axis A4'.

[0108] In particular, the first line S1' passes through the junction connecting surfaces 43a1' and 43a2', and the second line S2' passes through the junction connecting surfaces 43b1' and 43b2'. In the illustrated deformed structure, this angle α' is acute and equal to approximately 55 degrees. More generally, the range of values ​​is as follows: It is possible to provide a range of 50 degrees ≤ α' ≤ 70 degrees.

[0109] Figure 18 also highlights the angle γ' that separates the third line S3', which connects the first impulse input portion 41a' to the rotation axis A4', from the fourth line S4', which connects the second impulse input portion 41b' to the rotation axis A4'.

[0110] In particular, the third line S3' is tangent to the first impulse input portion 41a', and the fourth line S4' is tangent to the second impulse input portion 41b'. In the modified structure shown, this angle γ' is acute and equal to approximately 65 degrees. More generally, the following range of values ​​can be provided, namely 60 degrees ≤ γ' ≤ 80 degrees.

[0111] It should be noted that the locking movable part 4' in Figure 18 can be distinguished from the locking movable part 4 shown in Figure 2 because the first and second concave locking portions 43a' and 43b' are positioned between the first and second impulse input portions 41a' and 41b'. As a result, angle α' is less than angle γ' (whereas in Figure 2, angle α is greater than angle γ).

[0112] Due to the specific shape of the locking movable part 4', the escapement device 10' shown in Figures 13 to 16 is characterized in that it is actuated by a first escapement movable part 1' (in particular, comprising a pinion 13' driven in a first direction S1) located to the right of the plane P45' through which the respective axes of rotation of the movable part 4' and the balance wheel or oscillator 51' pass, which differs from the escapement device 10 in Figure 1, which has a first escapement movable part 1 (in particular, comprising a pinion 13 driven in a first direction S1) located to the left of the plane P45' through which the respective axes of rotation of the movable part 4 and the balance wheel 51 pass. The wheels 11' and 21' are identical to the wheels 11 and 21 in Figure 1, but differ in that the wheels 11' and 21' are mounted in reverse on their respective axes A1' and A2' compared to the arrangement of the wheels 11 and 21 on their respective axes A1 and A2.

[0113] Figure 13 shows the escapement device 10' while the second escapement movable part 2' is in contact with the second surface locking portion 43b' of the locking movable part 4', which generates a reaction force F24' substantially directed toward axis A4'. The meshing between the first escapement movable part 1' and the second escapement movable part 2' also generates a reaction force F12'. Vectors representing these reaction forces are located on both sides of the plane P24' passing through the respective axes of rotation of the movable parts 2' and 4'. By analyzing the force applied to the second escapement movable part 2' during this resting phase and noting that the second escapement device 2' is locked or pressed against the second surface locking portion 43b', it can be inferred that the mounting gap of the second escapement movable part 2' with respect to the second rotation axis A2' is closed, allowing or causing the displacement of the second escapement movable part 2' toward the left in Figure 13, approximately along direction D21' (the displacement of the second escapement movable part 2' along direction D21' can be schematically summarized as the oscillation or rotation of the second escapement movable part 2' around the support point of the second escapement movable part 2' on the locking movable part 4').

[0114] Figure 14 shows the escapement device 10' while the second escapement movable part 2' is transmitting an impulse to the locking movable part 4' by interacting with the second impulse input part 41b', which causes the reorientation of the reaction force F24' which no longer passes through the fourth rotation axis A4'. Vectors schematically representing the reaction forces F24' and F12' remain positioned on both sides of the plane P24'. Analyzing the forces applied to the second escapement movable part 2' during this impulse phase, and focusing on the impulse force F24' applied to the second impulse input part 41b' on the one hand and the bearing force F12' on the other, it can be inferred that the mounting gap of the second escapement movable part 2' with respect to the second rotation axis A2' is occupied, still allowing or causing the displacement of the second escapement movable part 2' toward the left in Figure 14, approximately along direction D22'.

[0115] Therefore, any mounting gap of the second escapement movable part 2' with respect to the second rotation axis A2' is closed, and during rest or impulse phases involving the second escapement movable part 2', displacement of the second escapement movable part 2' toward the left side in Figure 13 or Figure 14 is still still possible or can be caused.

[0116] Figure 15 shows the escapement device 10' while the first escapement movable part 1' is in contact with the first surface locking portion 43a' of the locking movable part 4', which generates a reaction force F14' substantially directed toward the fourth rotation axis A4'. The meshing between the first escapement movable part 1' and the second escapement movable part 2' also causes a (very low) reaction force F12' and / or at least one stopping contact during the resting phase. Vectors schematically representing these reaction forces are located on both sides of the plane P14' passing through the respective rotation axes of the movable parts 1' and 4'. It should also be noted that the first escapement movable part 1' is always subjected to the driving torque of the drive gear train via the pinion 13'. By analyzing the forces applied to the first escapement movable part 1' during this resting phase and noting that the first escapement movable part 1' is locked or pressed against the first surface locking portion 43a', it can be inferred that the mounting gap of the first escapement movable part 1' with respect to the first rotation axis A1' is closed, allowing or causing the displacement of the first escapement movable part 1' toward the right in Figure 15, approximately along direction D11' (the displacement can be schematically summarized along the direction D11' of the first escapement movable part 1' as the oscillation or rotation of the first escapement movable part 1' around the support point of the first escapement movable part 1' on the locking movable portion 4', due to the driving torque applied to the first escapement movable part 1').

[0117] Figure 16 shows the escapement device 10' while the first escapement movable part 1' is transmitting an impulse to the locking movable part 4' by interacting with the first impulse input part 41a', which results in a reorientation of the reaction force F14' that no longer passes through the fourth rotation axis A4'. The meshing between the first escapement movable part 1' and the second escapement movable part 2' also causes a (very low) reaction force F12' and / or at least one contact during this impulse phase. It should also be noted that the first escapement movable part 1' is always receiving the driving torque of the drive gear train via the pinion 13'. The vectors schematically representing the reaction forces F14' and F12' remain positioned on both sides of the plane P14'. By analyzing the force applied to the first escapement movable part 1' during this impulse phase, and focusing on the impulse force F14' applied to the first impulse input portion 41a' on the one hand, and the driving torque applied to the first escapement movable part 1' on the other hand, it can be inferred that the mounting gap of the first escapement movable part 1' with respect to the first rotation axis A1' is closed, and that the displacement of the first escapement movable part 1' is still possible or caused toward the right in Figure 16, approximately along direction D12'.

[0118] Therefore, any mounting gap of the first escapement movable part 1' with respect to the first rotation axis A1' is closed, and during the resting or impulsing phase involving the first escapement movable part 1', displacement of the first escapement movable part 1' toward the right in Figure 15 or Figure 16 is still still possible or can be caused.

[0119] Whether in the pause phase (Figures 13 and 15) or the impulse phase (Figures 14 and 16), the escapement movable parts 1' and 2' are displaced symmetrically with respect to the plane P45' (but in separate phases). In particular, the magnitudes of the displacements D11' and D21' of the first and second escapement movable parts 1' and 2' are the same even when the first and second escapement movable parts 1' and 2' are in continuous contact with the first and second surface locking parts 43a' and 43b', and the orientation of the displacements D11' and D21' is symmetrical with respect to the plane P45'. In particular, the magnitudes of the displacements D12' and D22' of the first and second escapement movable parts 1' and 2' are the same when the first and second escapement movable parts 1' and 2' are in continuous contact with the first and second impulse input parts 41a' and 41b', and the directions of the displacements D12' and D22' are symmetric with respect to the plane P45'.

[0120] Controlling the displacement of the first and second escapement movable parts 1', 2' relative to their pivot bearings, and thus the assembly gap, helps define a robust escapement device. It should be noted that the method of filling this gap is independent of the operational safety obtained by the second part, the so-called contact part, which is formed as a projection or protrusion relative to the first part 411a', 421a' of the horn of the fork 400', the so-called impulse part. Therefore, the locking movable part 4' may or may not have the same or identical fork 400' as the locking movable part 4 described above in relation to Figures 2 to 4.

[0121] Therefore, the locking movable part 4' makes it possible to achieve a definition of an escapement device that is particularly robust and even shock-resistant. industrial use

[0122] The locking movable part and its manufacturing according to the present invention are suitable for industrial applications.

[0123] It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the various embodiments of the invention described herein without departing from the scope of the present invention.

Claims

1. A locking movable part (4;4') for a clock movement, The aforementioned watch movement is, - An escapement device (10; 10') comprising the aforementioned locking movable parts (4; 4') and at least one escapement movable part (1, 2; 1', 2'), - A rocker (20; 20') comprising at least one inertial element having a drive part such as teeth or pins (511a; 511a'), and an elastic return means coupled to the inertial element, The aforementioned locking movable part (4; 4') is - A locking means arranged to lock at least one of the escapement movable parts (1, 2; 1', 2') of the escapement device (10; 10') during the resting phase, - Impulse receiving means arranged to receive an impulse from at least one escapement movable part (1, 2; 1', 2') during the impulse phase, - comprising two first parts (411a, 421a; 411a', 421a'), so-called impulse parts, forks (400; 400') that face each other and are arranged to transmit at least a portion of the impulse received from the at least one escapement movable part (1, 2; 1', 2') to the drive part of the inertial element during the impulse phase, The clock according to claim 1, wherein the forks (400; 400') are opposite to each other and each protrudes from one of the first portions (411a, 421a; 411a', 421a'), and each comprises two second portions (411b, 421b; 411b', 421b'), so-called contact portions, which are arranged to contact the inertial element when struck by the movement of the clock during the resting phase.

2. The fork (400; 400') comprises two horns (410, 420; 410', 420') each extending along the longitudinal horn direction (D410, D420; D410', D420'), and each horn (410, 420; 410', 420') extends along the direction transverse to the respective longitudinal horn direction (D410, D420; D410', D420'), - The first width E1 at the level of the first portion (411a, 421a; 411a', 421a'), - Having a second width E2 at the level of the second portion (411b, 421b; 411b', 421b'), The locking movable part (4; 4') according to claim 1, wherein E2 > E1, preferably E2 > 1.1, E1, preferably E2 > 1.2, E1, preferably E2 > 1.3, and E1.

3. Each of the second parts (411b, 421b; 411b', 421b') is at least: - The distal contact end formed at the free end of the fork (400; 400'), particularly at the free end of the horn (410, 420; 410', 420') of the fork (400; 400'), - comprising a radial surface essentially oriented along a direction perpendicular to the pivot direction of the locking movable part (4; 4'), - The distal contact end is positioned to contact the inertial element when an impact is applied to the movement of the watch while the inertial element is moving at an additional upward or downward angle, preferably while the drive portion is not engaged with or disengaged from the fork (400; 400'). and / or - The locking movable part (4; 4') according to claim 1 or 2, wherein the radial surface is positioned to contact the drive portion of the inertial element when the movement of the watch is subjected to an impact during an additional upward or downward angle movement by the inertial element, preferably when the drive portion is engaged with or disengaged from the fork (400; 400').

4. Each first portion (411a, 421a; 411a', 421a') is connected to a second portion (411b, 421b; 411b', 421b') by a third portion (411c, 421c; 411c', 421c'), a so-called connecting portion, and preferably a slope reversal and / or a recess is positioned in the third portion, the locking movable portion (4; 4') according to any one of claims 1 to 3.

5. A first tangent to a first portion (411a, 421a; 411a', 421a') is a second tangent to a second portion (411b, 421b; 411b', 421b') positioned to protrude from the first portion (411a, 421a; 411a', 421a'), forming an angle δ of less than 180 degrees when the first portion (411a, 421a; 411a', 421a') and the second protruding portion (411b, 421b; 411b', 421b') are viewed from the inside of the fork (400; 400'), the locking movable portion (4; 4') according to any one of claims 1 to 4.

6. Each first portion (411a, 421a; 411a', 421a') preferably comprises at least one plane and at least one curved surface in a direction away from the axis of rotation (A4; A4') of the locking movable portion (4; 4') according to any one of claims 1 to 5.

7. Each second portion (411b, 421b; 411b', 421b') comprises at least one curved surface, the locking movable portion (4; 4') according to any one of claims 1 to 6.

8. - The locking means and / or the impulse receiving means are positioned at a radial distance R41 from the rotation axis of the locking movable part (4; 4'), - The second portion (411b, 421b; 411b', 421b'), the so-called contact portion, is positioned at a radial distance R4 from the rotation axis of the locking movable portion (4; 4'), A locking movable part (4; 4') according to any one of claims 1 to 7, wherein R4 > R41, preferably R4 > 1.4, R41, preferably R4 > 1.8, R41.

9. - Being planar, or formed by planar components, and / or - No darts, and / or - A locking movable part (4; 4') according to any one of claims 1 to 8, characterized in that it is manufactured as a single part or formed by an assembly of at least two components.

10. A regulator device for a watch movement, - An escapement device (10; 10') comprising a locking movable part (4; 4') according to any one of claims 1 to 9, and at least one escapement movable part (1, 2; 1', 2') arranged to engage with the gear train of the clock movement, such as a drive gear train, and to receive driving force, - An oscillator (20; 20') comprising an inertial element having a drive part such as teeth or pins (511a; 511a'), and an elastic return means coupled to the inertial element, - For example, comprising two outer contact portions formed by dovetail pins (91, 92; 91', 92') or detent pins, During the pause phase, the fork (400;400') of the locking movable part (4;4') is positioned to contact one of the two outer contact parts and the drive part in the event of knocking or knocking of the oscillator (20;20'), in the regulator device.

11. A regulator device for a watch movement, - An escapement device (10; 10') comprising a locking movable part (4; 4') according to any one of claims 1 to 9, and at least one escapement movable part (1, 2; 1', 2') arranged to engage with the gear train of the clock movement, such as a drive gear train, and to receive driving force, - An oscillator (20; 20') comprising an inertial element having a drive part such as teeth or pins (511a; 511a'), and an elastic return means coupled to the inertial element, The locking movable part (4; 4') is pivotably mounted and has a oscillating motion with an amplitude of more than 30 degrees, preferably more than 40 degrees, preferably more than 45 degrees, between two consecutive resting positions, in the regulator device.

12. The escapement device (10; 10') is - A first escapement movable part (1; 1') pivotably mounted around a first rotation axis (A1; A1'), the first escapement movable part comprising a plurality of first locking surfaces and a first drive tooth set that are arranged to engage with the gear train of the clock movement and interact with the locking means of the locking movable part (4; 4'), - A regulator device according to claim 10 or 11, comprising: a second escapement movable part (2; 2') pivotably mounted around a second rotation axis (A2; A2'), the second escapement movable part comprising: a plurality of second locking surfaces that interact with the locking means of the locking movable part (4; 4'); and a second drive gear row that engages with the first drive tooth set to transmit the driving force of the first escapement movable part (1; 1') to the second escapement movable part (2; 2').

13. - The drive unit is positioned at a radial distance R5 from the rotation axis of the inertial element, - The second portion (411b, 421b; 411b', 421b'), the so-called contact portion, is positioned at a radial distance R4 from the rotation axis of the locking movable portion (4; 4'), A regulator device according to any one of claims 10 to 12, wherein 0.

8. R5 < R4 < 1.

2. R5, and preferably 0.

9. R5 < R4 < 1.

1. R5.

14. - The drive portion has a crescent shape, and / or - The inertial element has a cylindrical side surface that forms a contact wall, which is positioned to contact one of the two second parts (411b, 421b; 411b', 421b'), the so-called contact portion, when it is struck by the movement of the clock during the resting phase. - The drive unit is positioned at a radial distance R5 from the rotation axis of the inertial element, - The contact wall is positioned at a radial distance R6 from the rotation axis of the inertial element. A regulator device according to any one of claims 10 to 13, preferably R5 > R6, preferably R5 > 1.

2. R6, and preferably R5 > 1.

3. R6.

15. A clock comprising a regulator device according to any one of claims 10 to 14.

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