EP2871536B1 - Seconds stop for clocks with a tourbillon - Google Patents

Description

The invention relates to a one-second stop, in particular for watches with tourbillon, the tourbillon having a base frame and a cage bridge, which is supported by pillars or angeaffete arms spaced apart from the frame and is rotatable about a rotational axis in a rotational direction, wherein formed in the interior of the cage-like Tourbillon a stopable by manually controllable means balance is arranged and the means comprise at least one element which is deliverable to the balance undeliverable and stopping the balance with the balance in contact.

In particular, high-quality watches are mostly provided with mechanical movements. Despite numerous design measures to minimize the gear deviation, the accuracy of a mechanical movement movement is limited due to unavoidable manufacturing tolerances of the mechanical components, friction losses in bearings and the meshing of the gears and due to the influences of the ambient temperature on the viscosity of the lubricants. Therefore, mechanical wristwatches for correcting the hand position have a hand-setting function by means of which a hand movement of the wristwatch can be set to the current time. The pointer function is often combined with a wristwatch dial. For this purpose, the elevator has an elevator crown arranged outside the housing of the watch, called crown for short. In addition to the winding of the tension spring of the movement in a first position close to the case of the clock can be changed by pulling the crown in a further position in the pointer setting function.

Often only the hour hand and the minute hand of the hand movement can be set to the current time. Depending on the design of the movement of the second hand continues running or the movement is stopped when switching to the hand setting function by manually controllable means, the so-called second stop. For clocks with stop seconds, the clockwork is stopped when pulling out the crown, so that setting the clock to the second is possible. For this purpose, the hand movement is set to an immediately in the future time and at the right moment the crown pressed back into, so that the clock starts to run again. In addition to this described manner of switching between the elevator function and the pointer setting function, other, with an outside of the housing of the clock arranged pusher are known, wherein the pusher is designed to start the movement.

For example, one second stop for mechanical movements is off DE 197 25 793 A1 known. To stop the movement here the balance is stopped. Riots are components of a clockwork gear regulator, which sets the clock of the clock and together with the escapement ensures a smooth transition. This speed regulator represents a mechanical vibration system, which in this case from the balance, the serves as a flywheel, and a coil spring, which serves as a restoring element, is formed. The balance is periodically set in motion by the armature by abutment, whereby the coil spring is tensioned. By its restoring moment the balance is driven back in the opposite direction. The balance is usually formed from a slender unruly with the highest possible moment of inertia and a hub, which are connected to each other via webs. The accuracy of the balance determines the accuracy of the clock. To stop the balance a spring-loaded stop lever is provided which is formed at one end as a spring arm. By manually controllable means of the stop lever is pivotable radially to the balance, whereby the spring arm frictionally engageable with the peripheral region of the balance in contact and the balance is thereby stopped.

A similar solution is in the FR 687 649 A discloses, in which also a spring element is provided, which can be elastically deformed by control means and thereby presses on the circumference of the ratchet and the balance stops.

To compensate for a gravity-related error in accuracy, watches with tourbillon are known. This watch complication was originally developed for pocket watches, whose balance-wheel remained regularly in the same, same horizontal, position and thus represented a manufacturing tolerances due to inaccuracy of the components of the gear regulator as a systematic gangs error. To solve this technical problem at least the balance, the escape wheel and the armature in a rotatable, cage-like housing, the tourbillon, were arranged. The tourbillon points usually a subframe and a cage bridge, which is supported by pillars or attached arms to the subframe spaced, wherein the balance, the escape wheel and the anchor are typically arranged between the base frame and the cage bridge. The pillars or attached arms are aligned substantially coaxially with a rotation axis of the tourbillon. Tourbillone Typerweise be arranged on the shaft of the second wheel, as this has short round trip times of the tourbillon of minutes in the sequence. By arranging the tourbillon on other waves longer circulation times are possible. There are also known Tourbillone, which are rotatably mounted about two or three axes, with a distinction between a two-sided or one-sided, ie flying storage.

However, a second stop of the aforementioned kind can not be used with a tourbillon watch. This is because the pillars or arms of the tourbillon rotate between balance and spring arm. Depending on the number of pillars or arms, it may therefore happen that the spring arm when pivoting to the balance back not frictionally in contact with the balance, but with a pillar or arm of the tourbillon. Although this is also slowed down, but could be damaged by the swinging balance further the clockwork. Thus, stopping the balance is not possible at any time.

Instead, second stops are known for watches with tourbillon. So revealed EP 1 617 305 B1 a tourbillon with a stop second, in which three movable elements are arranged on the tourbillon, which are actuated by the action of an element arranged outside the tourbillon, to stop the balance. Particularly disadvantageous of this Construction is that the tourbillon becomes heavier by the additional arrangement of the three movable elements, which in turn requires more energy to turn the tourbillon. Furthermore, this solution creates a great deal of mechanical effort, since three elements are provided along the circumference of the tourbillon, which must each be made individually and installed on the tourbillon, making the tourbillon in itself must be made partially larger, for example, to accommodate joints.

Another stop for watches with tourbillon is off DE 101 60 287 A1 known. To stop the balance a spring-loaded stop lever is provided, which has at one end a hinged double spring arm. Both spring arms each have a landing area. By means of manually controllable means of the stop lever is pivotable radially to the balance, whereby the application areas can be frictionally brought into contact with the peripheral region of the balance in contact and the balance is thereby stopable. By this rocker-like configuration, even if a landing area touches a pillar or arm of the tourbillon, the other landing area always touch the balance and stop. In other words, the movement of the stopping lever is divided by the rocker-type double spring arm. The disadvantage of this solution is, above all, that for proper functioning, a certain ratio of the distances of the pillars or arms of the tourbillon to the distance of the landing areas, each seen in the circumferential direction of the balance, set and must be maintained at all costs. Another disadvantage is the increased space required for the double spring arm.

It is therefore an object of the invention to provide a one-second stop for a tourbillon watch capable of reliably stopping the balance of a watch's gait, irrespective of the number and position of the pillar or arms of the tourbillon, the mass of the tourbillon not being stopped by the second stop increased and the required space is minimized.

The object is achieved by a stop for clocks with the features of independent claim 1. Advantageous embodiments and further developments are specified in the dependent claims.

There is a stop-seconds especially for watches with tourbillon, proposed, the tourbillon having a base frame and a cage bridge, which is supported by pillars or angeaffete arms spaced from the base frame and is rotatable about an axis of rotation in a rotational direction, wherein formed in the interior of the cage-like Tourbillon a stopable by manually controllable means balance is arranged and the means comprise at least one element which is deliverable to the balance undeliverable while stopping it with the balance in contact.

The stop seconds is characterized in that the at least one element is designed such that it is elastically deformable by applying a restoring force of a pillar or arm or a component of the cage bridge of the tourbillon and / or tangential to the direction of rotation in one direction. In this case, the restoring force is a deforming or deflecting force, which after completion of stopping the balance, the at least one element back into the undeformed or not deflected Location back.

The first alternative of the deformable element includes the design, for example, as an elastic body. When the balance is stopped without colliding with a pillar or arm of the tourbillon, when the balance is stopped the element hits the balance directly. In the event, however, that the tourbillon assumes such a position that, when the balance is intended to stop, the element collides with a pillar or arm of the tourbillon, the element will then deform elastically.

The elastic deformation can for example be realized in that the element is designed as a resilient element which laterally escapes in a collision with a pillar or arm of Toubillons due to its spring action.

The elastic deformation can for example also be realized in that the element of elastic material, such as a rubber material or similar. is formed. The part of the element that collides with the pillar or arm is compressed. Other parts of the element remain substantially undeformed and then continue to press on the riff, so that the balance is stopped.

The second alternative of the deflectable element causes the element or a part of the element to be deflected by it in the event of a collision with a pillar or an arm of the tourbillon, thereby avoiding at least the collision. The deflection can be realized on the one hand by an element, which is rigid in itself, but rotatably mounted and has a resilient return. But the deflection can also be realized by an element, which is for example resilient and rotatable, which is expressed by the "and / or" -Kopp in claim 1.

Such deflected element can then still make contact with the balance, causing a stop the balance. But it can also be provided other elements or another part of the element, which in the case of collision of an element or element part certainly not collide and then initiate the effect of stopping the balance.

The restoring force means that a deforming or deflection force is used, which, however, after the event has ceased, i. after completion of the stopping of the balance, the at least one element back to its original position, i. in the undeformed or not deflected situation returns.

The advantage of the solution according to the invention is, above all, that the tourbillon can be made easily, since no further elements are to be arranged on the tourbillon itself for the stop of seconds. Basically, it is even possible to use a tourbillon intended for a clock without stopping seconds. In contrast to the use of a double spring arm as a solution from the prior art can be minimized in the inventive solution, the space of the second stop. This is primarily due to the fact that no two spaced apart landing areas, as described in the prior art, are necessary to divide the movement of the stop lever, if a landing area hits a pillar when the stop lever of the balance is delivered. Rather, at least one element is provided for what Stopping the balance is suitable.

According to the invention, it can also be provided that the at least one element can not be radially but axially fed to the balance by the manually controllable means. If the at least one element is delivered axially, it may possibly move in the delivery path components of the cage bridge in the same direction in a direction tangential to the direction of rotation and slide past it, such as the pillars, as described, the base of the tourbillon from the cage bridge spaced hold ,

The solution according to the invention is further characterized in that the restoring force already described above acts on the tourbillon, if the at least one element is deflected and / or deformed by the tourbillon. The advantage here is that the at least one element returns by the restoring force back to the position that it held before delivering to the balance out. This is the only way to ensure that the next time the second stop is pressed, the same functionality is guaranteed as before. Should, as already mentioned, the case occur that the pillar of the tourbillon, of which the at least one element was just deflected and / or deformed, has just turned so on that it is no longer in contact with the at least one element , then the restoring force acts on the balance. In contrast to the solutions of the prior art, the restoring force is not aligned parallel to the path on which the at least one element is deliverable by the manually controllable means of the balance, but substantially perpendicular thereto. That is, a radial delivery of the at least one element causes a substantially in one Direction of the tourbillon directed in a direction tangential to the direction of rotation.

In a first embodiment, the at least one element is designed as a spring-loaded, pivotable lever. The lever is pivotally mounted at one end to the manually controllable means, which is radially deliverable to the balance. In the longitudinal direction, the lever is oriented substantially radially to the balance. According to the invention, a not perfect radial alignment is advantageous, since thus a secure deflection and / or targeted deformation of the lever is possible. Although the lever may be rigid, according to the invention it is advantageous if the lever itself has elastic material properties, so that it is deformable. Already by these elastic material properties a restoring force is guaranteed.

It may further be provided that the lever itself is spring-loaded, so that in this way a restoring force is ensured. In any case, the length of the lever is to be chosen to be greater than the smallest distance between the peripheral area of the balance, i. its outer periphery, and the manually controllable means in the delivered to balance state. Only then is the lever in the deflected and / or deformed state in contact with the balance in contact.

In order to advantageously influence the deflection and / or deformation of the lever, it is expedient that the end of the spring-loaded lever which can be brought into contact with the balance be made tapering towards the balance. The acute-angled design of the free end of the lever favors the deflection and / or deformation of the lever on a pillar of the tourbillon. Furthermore, it is provided here that the Lever is made of spring steel. This allows the elastic deflection of the lever in contact with the riffrail such that the lever can slip under or over the ratchet and thus the balance does not stop on the peripheral surface of the ratchet but on the top or bottom by friction.

So that the lever can be brought into contact with the balance over as large an area as possible, it is expedient for the pivotable lever to be swingable in an angle limited on both sides into and against the circumferential direction of the balance. This prevents the pivoting lever from swinging out without being in contact with the balance.

In a second embodiment it is provided that the means comprise a plurality of elements, wherein the elements are formed from a plurality of elastic bristles as a bristle head. The bristles are advantageously arranged so that they are aligned substantially radially to the balance. Due to the majority of the bristles, these may be made slimmer than, for example, the lever of the first embodiment. Furthermore, it can be provided that the bristles are rigid, i. not articulated, are arranged on the bristle head. On the other hand, an enlargement of the contact surface between bristles and balance can be achieved by the majority of the bristles, which leads to an improved braking effect.

It has proven to be expedient that the bristles are arranged in a regular pattern on the means. This pattern may be formed, for example, linear, wherein the bristles have the same distances from each other. If the axial extent of the ruff is greater than the diameter of a bristle may be rectangular, for example, two-row, patterns are transferred, so as to increase the contact area. Of course it is also possible to brush-like combine the bristles as a tuft. Forms of a round brush are just as possible as those of a flat brush.

To stop the balance, it is advantageous that the width of the bristle head in the circumferential direction of the balance is greater than the width of a pillar in the circumferential direction of the balance. This ensures that bristles touch the balance. The larger the aforementioned width of the bristle head is selected, the greater the number of those bristles which can be brought into contact with the balance without being deflected and / or deformed by the pillar.

The bristles can basically consist of synthetic or organic material. Thus, bristles made of hair material are also conceivable.

In a third embodiment, it is provided that the at least one element is designed as an elastically deformable volume. When delivering the elastically deformable volume to the balance, a pillar located in the delivery path is quasi enclosed by the elastic volume or, in other words, enveloped. In this case, the elastic volume is deformed due to the width of the pillar in the circumferential direction of the balance also in the circumferential direction. By means of the elastic volume, the contact surface between the at least one element and the balance can be maximized. Due to its elastic properties, the elastic volume resumes its original shape after it has been removed from the balance, so that it can be reshaped for the subsequent actuation of the second stop. It has proven to be expedient that the elastically deformable volume is formed as a foam. Basically, such foams are suitable, which return to their original shape after discharge. In addition, this deformation behavior should be long-term stable, so that a long life of the second stop can be ensured. In this regard, the water binding of the elastic volume should be minimal.

So that the at least one element can be reliably deflected and / or deformed by the tourbillon, it is expedient for the cross section of the pillars to be oval or round or triangular in sections. According to the invention, surfaces on the pillars are thus avoided whose surface normal is substantially parallel to the feed path of the at least one element. It may be provided to combine oval, round or triangular sections on a pillar or to provide other shapes that allow safe deflection and / or deformation.

It is also expedient that the manually controllable means are actuated by a lift of a clock. This makes it possible for the speed dial of the watch in which the second stop is located to be stopped when the hand position function is selected by means of the elevator.

• Fig. 1 eine Draufsicht einer ersten Ausführungsform eines erfindungsgemäßen Sekundenstopps umfassend einen federbelasteten schwenkbaren Hebel;
• Fig. 2 eine Draufsicht der ersten Ausführungsform eines erfindungsgemäßen Sekundenstopps mit ausgelenktem Hebel;
• Fig. 3 eine Draufsicht der ersten Ausführungsform eines erfindungsgemäßen Sekundenstopps mit ausgelenktem Hebel;
• Fig. 4 eine Draufsicht einer zweiten Ausführungsform eines erfindungsgemäßen Sekundenstopps umfassend eine Mehrzahl elastischer Borsten und
• Fig. 5 eine Draufsicht der zweiten Ausführungsform eines erfindungsgemäßen Sekundenstopps mit ausgelenkten elastischen Borsten.

The invention will be explained in more detail with reference to two embodiments. In the accompanying drawings shows

• Fig. 1 a plan view of a first embodiment of a second stop according to the invention comprising a spring-loaded pivotable lever;
• Fig. 2 a plan view of the first embodiment of a second stop according to the invention with deflected lever;
• Fig. 3 a plan view of the first embodiment of a second stop according to the invention with deflected lever;
• Fig. 4 a plan view of a second embodiment of a second stop according to the invention comprising a plurality of elastic bristles and
• Fig. 5 a plan view of the second embodiment of a second stop according to the invention with deflected elastic bristles.

The Fig. 1 to 5 in addition to a second stop 1 according to the invention, a tourbillon 3 which can be brought into operative connection with the second stop 1 and, in sections, an elevator 2 which is in operative connection with the second stop 1. The second stop 1, the tourbillon 3 and the elevator 2 are in an unillustrated case of a watch, especially a wristwatch, held or hinged.

The Fig. 1 to 3 show a first embodiment of a second stop 1 according to the invention, which comprises manually controllable means, which are designed as levers 11 and have an element which can be brought into contact with the ratchet 41 of a balance 4 and this element is designed as a lever 13.

The Fig. 4 and 5 show a second embodiment of a second stop 1 according to the invention, which comprises manually controllable means, which are designed as levers 11 and having elements which can be brought into contact with the ratchet 41 of the balance 4 and these Elements of a plurality of elastic bristles 14 is formed as a bristle head.

Accordingly, the two embodiments differ in the design of the at least one element of the second stop 1, which can be brought into contact with the ratchet 41, and by a corresponding configuration of the manually controllable means on which the at least one element is held or articulated.

The tourbillon 3 of both embodiments has a base frame 31 and a cage bridge 32, which is supported by two pillars 33 or attached arms to the base frame 31 spaced. The vibration system comprising a gait regulator of the watch, the balance 4, an escape wheel 5 and an armature 6, is arranged between the underframe 31 and the cage bridge 32. The pillars 33 are aligned substantially coaxially to a rotation axis 34 of the tourbillon 3. The tourbillon 3 is so in operative connection with a second wheel of the clock, that the tourbillon 3 rotates about the axis of rotation 34 in the direction of rotation 35 with a period of three minutes.

By means of the two embodiments common elevator 2 can on the one hand by means of an elevator gear 25, a tension spring, not shown, which is arranged in a spring, not shown, the clock are tensioned (elevator function). On the other hand, with the elevator 2 and by means of a chain of wheels, not shown, the clock hands, not shown, can be set to the desired time (hand setting function).

Both elevator function and hand setting function are each by rotating one on an elevator shaft 21 arranged, not shown crown executable. The crown is placed outside the case of the watch so that it can be operated. In order to switch between the elevator function and the pointer setting function, the elevator shaft 21, by pulling out the crown, along the axis of rotation of the elevator shaft 24 is formed axially displaceable.

The in Fig. 1 illustrated elevator 2 is in the normal position for the elevator function. This position of the elevator 2 is referred to as normal position, since the elevator 2 is mainly in this position. In the normal position, the elevator shaft 21 is arranged axially relative to its axis of rotation so that the crown is connected to the front side of the housing of the wristwatch. This prevents the ingress of contaminants under the crown or into the housing. In a trained as a square section of the elevator shaft 21, a sliding operation 23 is arranged. The sliding operation 23 is axially displaceable on the winding shaft 21. In this case, the sliding operation 23 can be brought into engagement either with the wheel chain for pointer position or with the elevator gear 25. On the, in the axial direction, one end of the sliding operation 23 is a sawtooth toothing arranged to engage in the elevator gear 25 frontally, whereas on the, in the axial direction, the other end of the sliding operation 23 for engagement in the wheel chain a crown wheel is arranged.

Centered between the Sägezahnverzahnung and the crown gear of the sliding operation 23 a circumferential groove is arranged. In this circumferential groove engages a two-piece executed spring-loaded clutch lever 24 a. The clutch lever 24 is hinged to a circuit board of the clock so that he pivotable and thereby the sliding operation 23 is slidable. The clutch lever 24 is spring-loaded so that the sliding operation 23 in the normal position is regularly in engagement with the elevator gear 25. The return element of the clutch lever 24, for example in the form of a spiral spring is in the Fig. 1 to 5 not shown. The clutch lever 24 has an engagement 241 which is operatively connected to a arranged on the lever 11 nose of the second stop 1.

The second stop 1 of the first embodiment comprises a hinged to a board lever 11 at one end of a pivotable lever 13 is articulated. The lever 11 and the lever 13 arranged thereon are arranged such that a deflection of the lever 11 about its articulation causes a substantially radial delivery of the lever 13 to the balance 4. The lever 13 is loaded by a spring 111 via a flat contact surface 12 so that it is aligned in the normal position substantially radially to the balance 4. As in Fig. 1 Visible, small angular deviations from a perfectly radial orientation are possible. By arranging the lever 13 on the spring 111, the lever 13 on both sides, that is deflected in a mathematical positive or negative sense in a limited angle about its articulation on the lever 11 about its normal position. This allows the lever 13 to slide past a post 33 of the tourbillon 3 in the event of a collision. The lever 13 of the first embodiment is in the form of an elastic finger, that is, although it is shown relatively compact in the plan view of the drawings, but consists of a flat spring material, whereby this lever 13 can also spring perpendicular to the axis of movement of the linkage. And that's the riff-raff 41 can be brought into contact end of the spring-loaded lever 13 to the balance 4 toward tapering.

In the in Fig. 1 shown normal position is the free end of the lever 13 so spaced from the rag fist 41 that the two pillars 33 of the tourbillon 3 between the ratchet 41 and the free end of the lever 13 are movable therethrough. At a period of three minutes, each pillar passes through this distance within three minutes.

Fig. 2 represents the elevator 2 in position of the hand setting function. By means of the second stop 1 while the balance 4 should be stopped so that a second-precise setting of the clock is possible. Fig. 2 is provided with arrows with no reference numerals, indicating the directions of movement of the components of the elevator 2 and the second stop 1, they perform during the change from the elevator function in the pointer setting function.

The elevator shaft 21 has between the wall of the housing and the elevator gear 25 has a circumferential groove. On the board an angle lever 22 is articulated. A pin disposed at one end of the bell crank 22 engages the circumferential groove of the elevator shaft 21. At the other end of the angle lever 22, a further pin is arranged, which is pressed against a hinged on the board, not shown, angle lever spring. By pulling out the crown of the angle lever 22 is pivoted to the left, whereby the angle lever spring is tensioned and the angle lever 22 comes into contact with the clutch lever 24 and the clutch lever 24 is deflected.

By swinging out of the coupling lever 24 of the sliding operation 23 is axially displaced on the elevator shaft 21, so that now the crown wheel of the slide drive 23 with the wheel chain is engaged. In this case, the clutch lever 24 engages in a detent, not shown, and is held by this. The spring-loaded bell crank 22 will return the crown to the housing after it is released, while the shift operation 23 remains in the position for the hand setting function.

When swinging the clutch lever 24, the lever 11 of the second stop 1 is also swung over the engagement 241. The lever 13 thereby moves substantially radially to the balance 4. Meets the lever 13 in this pivoting on a pillar 33 of the tourbillon, 3, the lever 13 is deflected by the pillar 33 and slides past the pillar 33. This swiveling and sliding past the lever 13 on the one hand favors that the lever 13 is tapered at its free end and on the other hand favors that the pillar 33 is designed acute-angled. The acute-angled design is designed so that as far as possible no surface normal of the pillar 33 is aligned in the radial direction to the balance 4. In addition to an acute-angled configuration of the pillar 33, oval or round configurations are also possible according to the invention. A combination of different surface designs is also possible.

Characterized in that the lever 13 is deflected and deformed securely on the pillar 33, the lever 13 can be brought into contact with the ratchet 41, so that the lever 13 stops the balance 4, whereby the clockwork stops. This happens because the tip of the lever 33 on a non-illustrated chamfer on the underside of the trouble, similar to its visible Chamfer 42 on the top hits. Due to the bevel of the chamfer of the lever 33 is deflected due to its leaf-spring-like design down and pushes from below to the underside of the Unruhereifs 41. This leads to a friction between the lever 33 and 41 Unruhereif and thus to stop the balance 44th

When the balance 4 is stopped, a return force acting on the pillar 33 of the tourbillon 3, which results from the introduction of the force of the spring 111 onto the lever 13 via the contact surface 12. A second restoring force acts on the ratchet 41, which results from the elastically deformed lever 13 itself and on the one hand causes the stopping and on the other hand, the spring back of the lever 33 to its original position, if this no longer in engagement with the ratchet 41 after completion of the second stop stands.

If, when swinging the lever 13, there is no pillar 33 in its direction of movement, the lever 13 acts directly on the balance 4 and stops it. In this case, in turn, the lever 13 is elastically deformed due to its leaf-spring-like design. In this case, the restoring force of the lever 13 acts only on the balance 4.

When changing from the pointer position function in the elevator function, for example, by an outside of the housing arranged pusher, by means of which the clutch lever holding detent is releasable, pivots the spring-loaded lever 11 back to its original position, which he held for the elevator function, whereby the lever thirteenth Releases the balance 4 again, that is no longer in contact with it and the movement is started again. The lever 13 is by means of the spring 111 in its initial position swung back so that it can be used for the next stop the balance 4.

Fig. 3 shows the elevator 2 and the second stop 1 as Fig. 2 also in the pointer setting function, wherein the lever 13 slides forward on the other side of the pillar 33 and is deflected by this, as it is in Fig. 2 is shown. Again, the lever 13 can be brought into contact with the ratchet 41 so that the balance 4 is stopped and the movement stops.

Fig. 4 shows the elevator 2 and the second stop 1 in the elevator function. The balance 4 executes a torsional vibration, which is transmitted so that the tourbillon 3 moves about the rotational axis 34 in the direction of rotation 35 with a period of three minutes. At the free end of the lever 11, a plurality of elastic bristles 14 is formed as a bristle head. The elastic bristles 14 are arranged in a single row at uniform intervals in the circumferential direction of the balance 4. If the unripeness 41 has a large extent in a direction parallel to the axis of rotation 34 compared to the diameter of a single bristle 14, the bristles 14 can also be arranged in multiple rows. It is advantageous that the bristles 14 are tapered towards their free end. Here, a brush-like summary of the bristles 14 can be selected with the same effect.

In Fig. 5 the elevator 2 and the second stop 1 are shown in the hand setting function. By means of the coupling lever 24 of the elevator 2, the lever 11 is deflected by means of the engagement 241 so that the bristles 14 move substantially radially to the balance 4. As shown, it may happen that a pillar 33 in the path of the bristles 14 is arranged towards the balance 4. Bristles 14 meet with their free ends on the acute-angled pillar 33, so that some of the bristles 14 are deflected by this safe and deformed. Depending on how many bristles 14 are arranged in the circumferential direction of the balance 4 on the lever 11, it may be that some bristles can be brought directly into contact with the balance 4, ie without them sliding past a pillar 33. Regardless of whether bristles 14 slide past a pillar 33, they can be brought into contact with the balance 4 and stop the balance 4. The pillars 33 of the tourbillon 3 can in this case also be designed in a manner as has already been described for the first embodiment. During the contact of some bristles 14 with the balance 4 and / or the pillar 33, these exert a restoring force on the balance 4 and / or the pillar 33.

When changing from the pointer position function in the elevator function, for example, by an outside of the housing arranged pusher, by means of which the clutch lever holding detent is releasable, pivots the spring-loaded lever 11 back to its original position, which he held for the elevator function, whereby the bristles 14th release the balance 4 again, ie are no longer in contact with this and the movement is started again. The bristles 14 are swung back by their elastic configuration back to its original position, so that they can be used for the next stop the balance 4.

In addition to these two described embodiments, however, the at least one element may also be designed differently, as long as it can safely slide past a pillar 33 and the balance is safe stopable. In other words, according to the invention, at least one element deviates from a pillar, an arm or another part of the tourbillon and slides past it, since it can be deflected and / or deformed by the tourbillon.

LIST OF REFERENCE NUMBERS

1

stop second

11

lever

111

feather

12

contact area

13

lever

14

Bristles, elastic

2

elevator

21

Elevator shaft

22

bell crank

23

sliding pinion

24

clutch lever

25

Elevator gear

241

intervention

3

Tourbillon

31

undercarriage

32

cage bridge

33

pier

34

axis of rotation

35

direction of rotation

4

balance

41

balance wheel

42

chamfer

5

escape wheel

6

anchor

7

spiral spring

Claims (11)

1. Tourbillon with seconds stop (1), wherein the tourbillon (3) has a subframe and a cage bridge which is held at a distance from the subframe by means of pillars or attached arms and is designed so as to be rotatable about an axis of rotation (34) in a direction of rotation (35), wherein a balance (4) which can be stopped by manually controllable means is arranged in the interior of the tourbillon (3) of cage-like design, and the means have at least one element which can be fed towards the balance (4) and can be brought into contact with the balance (4) while stopping the latter, characterized in that the at least one element is designed in such a way that, with application of a restoring force by a pillar or arm or a constituent part of the cage bridge of the tourbillon (3), said element is elastically deformable and/or deflectable in a direction tangential to the direction of rotation, wherein the restoring force is a deforming or deflecting force which, after the stopping of the balance has ended, brings the at least one element back into the non-deformed or non-deflected position.
2. Tourbillon with seconds stop (1) according to Claim 1, characterized in that the at least one element is designed as a spring-loaded pivotable lever (13).
3. Tourbillon with seconds stop (1) according to Claim 2, characterized in that the end of the spring-loaded lever (13) that can be brought into contact with the balance (4) is designed to taper towards the balance (4) and to consist of spring sheet.
4. Tourbillon with seconds stop (1) according to Claim 2, characterized in that the pivotable lever (13) can be pivoted out in and counter to the circumferential direction of the balance (4) at an angle which is limited on both sides.
5. Tourbillon with seconds stop (1) according to Claim 1, characterized in that the means have a plurality of elements, wherein the elements are formed from a plurality of elastic bristles (14) as a bristle head.
6. Tourbillon with seconds stop (1) according to Claim 5, characterized in that the bristles (14) are arranged on the means in a regular pattern.
7. Tourbillon with seconds stop (1) according to Claim 5, characterized in that the pillars (33) can be positioned between the bristle head and the balance (4), wherein the width of the bristle head is greater in the circumferential direction of the balance (4) than the width of a pillar (33) in the circumferential direction of the balance (4).
8. Tourbillon with seconds stop (1) according to Claim 1, characterized in that the at least one element is designed as an elastically deformable volume.
9. Tourbillon with seconds stop (1) according to Claim 8, characterized in that the elastically deformable volume is formed as foam.
10. Tourbillon with seconds stop (1) according to one of the preceding claims, characterized in that the pillars (33) can be positioned between the at least one element and the balance (4), wherein the cross section of the pillars (33) is designed to be oval or round or triangular in certain portions.
11. Tourbillon with seconds stop (1) according to one of the preceding claims, characterized in that the manually controllable means can be actuated by the winding mechanism (2) of a timepiece.

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