EP3070542A1 - Repetition striking mechanism with dedicated winding and trigger gear trains - Google Patents

Abstract

The present invention relates to a timepiece for a movement comprising a control mechanism which includes an actuator for the release of the said Repetitionsschlagwerks, further comprising a separate decoupled from said actuator elevator member.

Description

The present invention relates to a new repetitive impact device which has a special control mechanism and in particular is provided with a new triggering and tensioning device.

Minute repeater clocks have been known since the Breguet times in the eighteenth century; they are meant to indicate the current time on request with the help of different tones. In the book Théorie d'horlogerie by Reymondin, Monnier, Jeanneret, Pelaratti pages 219-224 illustrates one of the most well-known examples of such a percussion mechanism, which uses two gongs to beat usually the hours, then the possible quarter-hours, and finally the remaining minutes. The triggering of the impact mechanism is actuated by a so-called elevator slide, which first biases the tension spring of the percussion mechanism with the aid of a toothed rack, which meshes with a pinion arranged on the percussion mechanism spring cover. At the end of the working path of this slider, the process of the percussion mechanism is triggered, whereby the cooperation between ua rake and scales determines the current time, which has caused the end of the work path of the slider.

Thus, according to the conventional watches, which include a Repetitionsschlagwerk, the triggering of the percussion always coupled with the covering of the modified dedicated Schlagwerkfederhauses, and a repeated triggering of the repetitions not possible.

For this purpose, the ease of use for such a percussion is limited by the fact that the required actuation force to press the elevator slider is quite high, because just the elevator of a barrel is executed, which is usually made more usual by a crown. The narrow shape of the slider can lead to slipping of the finger, and thus come to incorrect operation.

The present invention has for its object to overcome these disadvantages.

It was sought a way to develop a clock with a minute repeater, which, in contrast to the conventional and well-known watches with a Repetitionsschlagwerk, the triggering of the percussion allows several times, without the tension spring of the percussion must be re-tensioned before each trigger.

This object is achieved on the basis of the preamble of claim 1 by the characterizing features of claim 1.

The presented invention makes it possible to beat a watch with a repetition hammer several times in succession. Only after a certain number of Repetitionsvorgängen the tension spring of the striking mechanism must be re-tensioned.

The mainspring of the percussion mechanism is stretched over another device, so that a repeated triggering of the repetition is permitted, wherein the triggering for haptic reasons can be realized preferably via a pusher instead of a slider.

Triggering the repetition via a pusher, as with chronographs, is more favorable for haptic reasons. The previously used slides in the housing require a clear step as support for the finger during tensioning of the tension spring. If this level is not particularly clear and handy, it can cause the finger to slip and thus cause incorrect operation. The installation of a pusher in the case of a clock is much easier and requires a much simpler housing construction in comparison with a slider. The water and dust tightness is easier to implement and guarantee with the use of a pusher than with a slider.

The fact that the tension of the percussion mechanism is separated from the triggering of the percussion mechanism, the actuation force for triggering will drop significantly, thus simplifying its activation. Therefore, one can simultaneously another elevator organ, such as an ordinary crown, can be applied for the elevator of the percussion mechanism, which is adapted as a slider.

According to a preferred embodiment, a malfunction should also be ruled out in such a way that, because of an integrated trigger lock, a repeated triggering of the striking mechanism is not possible as long as the striking mechanism is running.

Thus, not only the ease of use, but also the reliability and robustness of the control mechanism for the hammer mechanism is improved.

According to a preferred embodiment, two completely dedicated separate kinematic chains are designed, on the one hand, for the elevator of the percussion mechanism between an elevator member and the percussion mechanism, and on the other hand between an actuator for triggering the percussion mechanism and the percussion mechanism. Thus, the entire control mechanism is totally modular, and e.g. could quite an ordinary barrel and a corresponding elevator mechanism for the striking mechanism are applied. Since ordinary or conventional components can be reinstated, therefore, the proposed repetition impact is easier to integrate in a clock, and thereby also reduces the cost of production.

According to a preferred embodiment, the applied barrel does not need to have any special parts both for its elevator, as well as for the determination of the current time and the operation of the striking mechanism more. Completely separate time determination and sequence program devices are also designed to be modular, and thus offer the same advantages in terms of compatibility, integration options, and production cost reduction. The fact that no additional elements must be superimposed on the barrel in comparison to conventional Schlagwerkfederhäusern, less space in the height direction on the worksheet for receiving the entire percussion module is needed, so that an overall thinner movement can be made.

Advantageous embodiments of the invention are described in the subclaims and in the description which follows.

In the following, a preferred embodiment of the invention will be described with reference to the accompanying figures, which deal with a new minute repetition impactor and represent the essential parts of the tripping and elevator gear chains in their respective rest and working positions at different sequences during the operation of the percussion mechanism.

• Fig. 1: eine Ansicht der Aufzugsgetriebekette des Schlagwerkfederhauses, und der mit einem Ablaufregler versehenen Ablaufgetriebekette des Schlagwerkfederhauses;
• Fig. 2A & 2B jeweils eine Ansicht eines Auslösehebels in seiner Ruheposition, wobei die Zusammenwirkung von Stiften für Verriegelungsvorrichtung des Schlagwerkfederhauses hervorgehoben wird; und eine detailliertere sagittalgeschnittene Ansicht Entlang Schnitt Richtung A-A der Stiftenanordnung;
• Fig. 3 eine Ansicht eines Auslösehebels in seiner Arbeitsposition, wobei eine weitere Verriegelungsvorrichtung für die Auslösesperre nun hervorgehoben wird;
• Fig. 4A & B: jeweils eine Ansicht der Vorrichtung für die Freigabe der verschiedenen involvierten Rechen bei der Auslösung des Schlagwerks, damit sie die entsprechenden Zeitangaben ermitteln können, in dem sie auf ihre jeweilige Staffel fallen, und eine detaillierte Ansicht der relativen Position der Zähne eines Rechens gegenüber den Zähnen der Programmräder währenddessen;
• Fig. 5: eine Ansicht der Zusammenarbeit der Rechen mit ihren jeweiligen Programmrädern während des Ablaufs des Schlagwerks, d.h. wenn die Hämmer eigentlich betätigt werden, um die Tonfedern zu schlagen;
• Fig. 6 eine Ansicht der gleichen Teile wie bei Figuren 4 & 5, wobei die Entriegelung des Auslösehebels, wenn er in seine Ruheposition zurückkehrt, veranschaulicht wird.

The figures show in detail:

• Fig. 1 a view of the elevator gear chain of the striking mechanism spring house, and the flow rate mechanism chain provided with a drain regulator;
• Figs. 2A & 2B in each case a view of a release lever in its rest position, wherein the interaction of pins for locking device of the striking mechanism is highlighted; and a more detailed sagittal sectional view along section AA of the pin assembly;
• Fig. 3 a view of a release lever in its working position, wherein a further locking device for the trigger lock is now highlighted;
• Fig. 4A & B: a view of the device for releasing the different rakes involved in triggering the percussion, so that they can determine the appropriate times when they fall on their respective scale, and a detailed view of the relative position of the teeth of a rake the teeth of the program wheels meanwhile;
• Fig. 5 a view of the cooperation of the rakes with their respective program wheels during the course of the impact mechanism, ie when the hammers are actually operated to beat the gongs;
• Fig. 6 a view of the same parts as in FIGS. 4 & 5 wherein the release of the trigger lever when returning to its rest position is illustrated.

The following figures each show the structure of the control mechanism with separate elevator and tripping devices and the sequence of operations after tripping of the percussion mechanism which places this control mechanism in different states during the course of the striking mechanism.

On FIG. 1 On the right side, a preferred embodiment for the applied hoist tensioning device is shown. By

Turning on the winding shaft 1.1 of an ordinary crown 1, the elevator gear chain 2 is set in a rotational movement. As a result, a first tension spring 3 of the striking mechanism spring house 4 is tensioned. The first tension spring 3 is, as known from a clock with an automatic elevator, equipped with a sliding bridge. By the same rotational movement, a second, not shown tension spring of a drive spring 40 of the clock is stretched; this one too is equipped with a sliding room. Thus, both springs are tensioned by the rotation of the elevator shaft until the respective sliding moments are reached, and the power reserve is thus maximized, since the energy required for the impact mechanism is not shortened by the remaining power reserve. The advantage of the proposed combined elevator is that the number of elevator iterations is minimized; but at the same time the required activation force to turn the crown is slightly increased.

The diversion between the two elevator chains takes place at the elevator pinion 11 which is valid as an intermediate element both for the elevator of the impact mechanism and the drive. It would be possible as a variant of the solution described here, to tension the two tension springs by different directions of rotation of the elevator shaft in which a freewheel mechanism is inserted on an idler, or to produce a structure with two separate elevator shafts.

On the left side of FIG. 1 is a completely separate, and completely decoupled from this elevator mechanism drain device for the percussion mechanism 4 illustrated. In this drive wheel 5 are aligned at a certain angle to each other three stacked program wheels 6, 7 and 8, which have stepped gears and each comb in a different circuit diagram. With the driven gear 5 is in engagement a flow gear chain 9, at the end of a drain regulator 10 is located. This drain regulator 10 may be a drum brake, a centrifugal governor, a magnetic governor or other element controlling the speed of the transmission chain 9.

How on FIGS. 2A and 2B Thanks to the decoupling of the elevator of the percussion mechanism housing and the triggering of the percussion mechanism, this release can now be achieved be operated by an ordinary pusher 0 instead of a slider. A completely separate kinematic chain compared to the other kinematic chain between FIG. 1 illustrated crown 1 and the striking mechanism spring 4 has a release lever 12 which is actuated by the pusher 0, and is responsible for the expiration of the percussion spring 4.

How on FIG. 2A shown, the free flow of the barrel 4 in the rest position of the trigger lever 12 by two pins 14 and 15 is prevented. In this case, the pin 14 is in the radial movement circle of the pin 15 and thus blocks the rotational movement and the course of the transmission chain 9. These two pins are in detail FIG. 2B showing a sagittal-sectional view along section AA of the mutual pin arrangement.

If the release lever 12 is pressed in the first arrow direction "a" of the pusher 0, the pin 14 mounted on the trigger lever 12 exits from the radial circle of movement of the pin 15 and thus allows the free movement of the percussion mechanism 4. Such a modular arrangement of the unlocking device for the course of this barrel - ie the Schlagwerk spring house 4 - which exclusively involves elements outside the barrel, allows to continue to work with conventional barrel house structures, which should have no additional or changed parts. Thus, the proposed Repetitionsschlagwerk is easier to integrate in a clock.

According to the FIG. 2A The preferred embodiment shown, the trigger lever 12 further comprises two guide cuts 13.1, wherein in each case a shoulder screw 13.2 is screwed for attachment to the work plate, and the movement of the release lever 12 slidably along the first arrow direction "a" limited, this direction of the longitudinal direction of the guide cuts 13.1 corresponds. Thus, a sliding guide device 13 is formed between two stops, each defining a first so-called rest position, and a second so-called working position. The resting position is up FIG. 2A whereas the working position is displayed FIG. 3 shown how the opposite position of the shoulder screw 13.2 point in their respective guide cuts 13.1 thereon.

Once the trigger lever 12 has reached its maximum working position, it is held in this position by a stop pawl 16 which engages in a recess behind a retaining tip 12.2. Thus, the proposed control mechanism provides an additional locking device in which an integrated trigger lock is ensured as soon as the pusher 0 has been actuated. The trigger lever 12 will remain in its working position until the end of Schlagwerkablaufs, even if the pusher 0 is preferably brought back into its rest position by a return spring, and thus could be operated again. However, such further action would then cause nothing more.

FIG. 4A shows what causes the sliding movement of the trigger lever 12 between its rest position and its working position. How on FIG. 4A represented, the shoulder screws 13.2 are in the middle of the elongated openings of the guide cuts 13.1. On the way to the maximum working position along the first arrow direction "a", the release lever 12 must overcome a restoring force exerted along the second opposite arrow direction "a '" by the trigger return spring 12.3. In this case, the release lever 12 rotates with a preferably integrally formed resilient element 12.1 a switching cam 17 in the third direction of the arrow "b", wherein the restoring force exerted by the switching cam spring 17.2 in the fourth opposite direction of the arrow "b '" restoring force must also be overcome. By this rotation of the control cam 17, the three superimposed pawls, ie the first pawl 18, second pawl 19, and third pawl 20 are also rotated in the third arrow direction "b", and give the superposed rake, ie the first rake 21, the second rake 22, and the third rake 23 free. These three rakes 21,22,23 then fall in the direction of arrow "c", driven by a spring force, to their respective squadron. According to the preferred embodiment, the repetitive impact device is a minute repeater, and the three rakes are each associated with hour, quarter, and minute indications. From the FIG. 4A Accordingly, the minute scale 24, quarter scale 25 and hour scale 26 emerge, which cooperate respectively with the third rake 23, the second rake 22, and the first rake 21. According to the illustrated preferred embodiment, each rake is preferably provided with a hook, each of a corresponding latch is held in a locked position. On FIG. 4A only the hook 23.1 of the third rake 23 is illustrated, which cooperates with the third pawl 20. The remaining hooks, which are in other lower wiring diagrams, are hidden underneath. It can also be seen in this figure that the third rake 23 is provided with an internal toothing 23.2 which is to be driven by the minute program wheel 8, as later with the aid of FIG. 5 explaining the progress of the percussion after the determination of the current time.

However, according to this preferred embodiment, in advance, the inner teeth 23.2 of the third rake 23, and otherwise the inner teeth of all rakes, must be able to pass the program wheels without being blocked by them. Namely, the course of the percussion mechanism 4 in this middle position of the trigger lever 12 between the rest position and the working position by the pins -. the first pin 14 and the second pin 15 - still blocked, and since the drive wheel 5 is in the power flow between the Schlagwerkfederhauses 4 and the second pin 15, this wheel and thus all program wheels mounted thereon.

FIG. 4B shows in which position the output gear 5 must be located so that neither the Stundenprogrammrad 6, nor the quarter program 7, nor the minute program 8 can prevent the falling of the rake on the relay. For this, the rest position of this output gear 5 is determined depending on the rotational position of the second pin 15 and the gear ratios in the operational gear during assembly so that no teeth in the lower angular segment of the program wheels. Thus, the internal teeth of the rake never come into engagement with the program wheels in this sequence of release of the rake, but only later when the striking mechanism 4 is no longer blocked.

Before the release lever 12 has reached its maximum working position, the resilient element 12.1 releases the scarf finger 17.1 of the control cam 17 again. This moves by the restoring force of the switching cam spring 17.2 shown opposite the third arrow direction "b", ie in the fourth direction of the arrow "b '" in its rest position.

As already explained FIG. 3 explained, the release lever 12 is to be held by the stop pawl 16 in its maximum working position, as soon as he has reached this. The trigger lever 12 is now in such a position on the left side of FIG. 5 , in which he allows the free flow of the barrel.

The three program wheels stored on the output gear 5, i. the hour program wheel 6, the quarter program wheel 7, and the minute program wheel 8, in their rotational movement in the sixth arrow direction, convey "d", i. the flow direction of the percussion mechanism housing sequentially in each case the first rake 21, the second rake 22, and finally the third rake 23 to its rest position, which they reach by their hook their respective first pawl 18; Lever out second pawl 19 and third pawl 20 and stay there after their incidence.

On the way to their rest position, the rakes move their respective associated first hammer lever 27, second hammer lever 28, third hammer lever 29 and fourth hammer lever 30, which in turn respectively the first hammer 31 and the second hammer 32 against the first gong 33 and the second gong 34 let beat. Such a configuration with two gongs will open FIG. 5 The hour is indicated with a certain first tone, then the quarter hours with a combination of the first tone with a second tone, and finally the minutes with the second tone alone. However, another configuration with, for example, only three levers, each controlled by a rake and, in turn, would strike a dedicated hammer against a respective tone spring would also be conceivable within the scope of the present invention.

How on FIG. 6 1, an unlocking surface 23.3 arranged on the third rake 23, by means of a setting eccentric 35, starts the stop pawl 16 shortly before reaching the end position of the third rake 23, where the hook 23.1 is again in engagement with the third pawl 20. For this, the adjusting eccentric 35 is preferably formed on the opposite side of the pivot axis 16.1 of the stop pawl 16. The tip of the stop pawl 16 is thereby removed from the retaining tip 12.2 of the release lever 12. This can then, driven by the Hereinur partially shown trigger return spring 12.3, in the second direction of the arrow "a '" opposite to the first arrow direction "a" return to its rest position. In this case, the resilient element 12.1, which drives the switching cam 17 in the triggering of the percussion, again on the shift finger 17.1 to stand in front of him in the rest position of the release lever.

Thus, the mechanics has arrived back in the starting position and the repetition can be triggered again when the push button 0 is pressed.

In contrast to the previously known repetitions, which require because of their design before each beating that the tension spring of the percussion is re-tensioned, it allows the proposed invention to beat a clock with a Repetitionsschlagwerk several times in a row. Only after a certain number of Repetitionsvorgängen the tension spring of the striking mechanism must be re-tensioned.

The proposed integrated trip lock prevents the repetition from being triggered once more while it is already beating, offering increased ruggedness and reliability, with the modular design of the lock allowing ordinary parts of a movement (ie barrel & pushers) to reinstate manufacturing costs and integration costs in existing movements as much as possible.

However, it will be understood by those skilled in the art from this disclosure that the subject matter of the present invention includes other variants for decoupling between the triggering device and the elevator device, and is not just adapted for a minute repeat impact device but can be applied to all types of repetitive impact devices. It is particularly possible, the presented invention to all known in watchmaking repetition, such. B. quarter repetition or minute repetition apply.

The triggering of the repetition over an ordinary pusher (as in chronographs) is haptic reasons cheaper compared to the previously used slider, but other actuators, such as a bezel, which should then be rotated instead of pressed, would also be conceivable within the scope of the invention , The same consideration applies to the elevator organ that should not necessarily take the form of an ordinary crown, but also, for example, by another pusher be formed, wherein the sliding movement of the pusher is then to be converted later in a transmission chain in a rotary motion.

Thus, the mentioned detailed preferred embodiment is given by way of example only, and should not be construed as limiting the interpretation of the claims.

LIST OF REFERENCE NUMBERS

0

Pusher (preferred embodiment for the actuator)

1

Crown

1.1

Elevator shaft

2

Elevator transmission chain

3

First tension spring (Schlagwerk)

4

Percussion barrel

5

output gear

6

Stundenprogrammrad

7

Viertelprogrammrad

8th

Minutenprogrammrad

9

Off gear chain

10

flow regulator

11

Elevator pinion (intermediate link for the diversion between Schlagwerk + drive)

12

sear

12.1

Spring drive element (for shift cam 17)

12.2

retaining tip

12.3

Release lever return spring

13

sliding guide

13.1

leadership cuts

13.2

shoulder screws

14

First pen

15

Second pen

16

Anhalt jack

17

switching cams

17.1

shift finger

17.2

cam spring

18

First latch

19

Second latch

20

Third latch

21

First rake (hours)

22

Second rake (quarter)

23

Third rake (minutes)

23.1

hook

23.2

Internal gearing

23.3

unlocking surface

24

minutes Season

25

quarter Season

26

hours Season

27

First hammer lever

28

Second hammer lever

29

Third hammer lever

30

Fourth hammer lever

31

First hammer

32

Second hammer

33

First gong

34

Second gong

35

adjusting eccentric

40

Drive barrel

A-A

Cutting axis for FIG. 2B

a

First arrow direction - Unlocking of the course of the barrel

a '

Second arrow direction - restoring force for the release lever

b

Third arrow direction - freeing the rake

b '

Fourth arrow direction - restoring force for the switching cam

c

Fifth Arrow Direction - Pivot movement of the rake to its respective time scale for time determination

d

Sixth arrow direction - percussion fountain house drive

Claims (10)

A movement timepiece comprising a control mechanism, said control mechanism including an actuator for actuating said repetitive impactor, characterized in that said control mechanism further comprises a separate elevator member decoupled from said actuator. Repetitions impact according to claim 1, wherein the actuating member is a pusher (0) and the elevator member is a crown (1). Repetitions impact according to claim 1 or 2, wherein the control mechanism completely separate kinematic chains on the one hand between the actuator and a percussion mechanism (4), and on the other hand between the elevator member and the said percussion spring (4). A repetitive impactor as claimed in any one of the preceding claims, wherein said elevator member is arranged to mount both a dedicated percussion spring house (4) and a drive spring house (40). Repetitions percussion according to one of the preceding claims, wherein between the said actuator and a percussion mechanism (4) a release lever (12) is arranged, which is movable between a rest position and a working position, and further a discharge gear chain (9) is arranged, characterized in that said trigger lever (12) having a first pin (14) cooperating with a second pin (15) mounted on a wheel of said outlet gear chain (9) to block the passage of said percussion mechanism house (4) in the rest position, and in the working position to free the flow of said Schlagwerkfederhauses (4). A puncher according to claim 5, wherein said trip lever (12) further comprises a retaining tip (12.2) cooperating with a stop pawl (16) to lock said trigger (12) in the operative position during operation of the percussion mechanism house (4). A repetitive impact device according to any one of the preceding claims, wherein the control mechanism comprises a modular output gear (5) on which various program wheels (6, 7, 8) are stacked, each having stepped gears and meshing in different circuit diagrams. Repetitions impact according to claim 7, wherein the teeth of the said program wheels each come with the internal teeth of superimposed rake in engagement. A repetitive percussion device as claimed in claim 8, wherein the repetition percussion device is a minute repetition percussion ring which rings 3 different tones each for the hours, quarters and minutes, characterized in that the control mechanism comprises three dedicated program wheels, an hour program wheel (6), a quarter program wheel ( 7), and a minute program wheel (8), wherein the gears of said program wheels respectively engage with the internal teeth of a first rake (21), a second rake (22), and a third rake (23). A repeating hammer according to claim 9, wherein said three said first, second, and third rakes (21, 22, 23) of the minute repeater each comprise a hook, each cooperating with three superimposed latches, a first pawl (18), a second pawl (19), and a third pawl (20) which are rotationally fixed with a trigger lever (12) controlled switching cam (17) are formed.

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