Clockwork.

专利摘要:
The invention relates to a movement comprising a work plate (1) with bearings in which mechanical components such as barrel (10), walking mechanism, pointer movement, oscillating system (16) and the like on the opposite side by means of other bearings in at least one block and / or at least one Bridge (9) are mounted, wherein the work plate (1) facing a dial facing the clockwork, which is surmounted by one or more pointer shafts (3) and in the direction of reversal between crown wheel (4) and ratchet (6) an intermediate (15) is arranged.
公开号:CH714822A2
申请号:CH00378/18
申请日:2018-03-21
公开日:2019-09-30
发明作者:Heise Jörn
申请人:Grossmann Uhren Gmbh；
IPC主号:

专利说明:

CH 714 822 A2
Description: The invention relates to a clockwork for a mechanical analog clock.
Mechanical clocks are driven by a tension spring arranged in a barrel, a wound coil spring, as an energy store. The spring is wound either by hand or by moving the watch with an automatic winding. One or more gear trains are kinematically connected to this drive.
The main gear train is called walking gear, which every clockwork must have. The clockwork can also have one or more additional gear trains, which are controlled by the walking mechanism. Analog clocks can display other data besides the time, e.g. Day, date, year, or moon phases.
The walking gear consists of several gear stages mostly spur gears (usually with more than 20 teeth) and drives (usually with less than 20 teeth) for energy transmission from the drive (barrel) to the escapement wheel in front of the gear regulator. A pointer movement branches off from the movement.
The vibration system is the last component of the kinematic chain of escapement and gear regulator (a mechanical harmonic oscillator). The escapement prevents the unrestrained and uneven movement of the clockwork and releases energy to the gear regulator to compensate for its frictional losses. The speed controller triggers the drive via the escapement at the same small intervals - in time.
An analog clock shows the time on the dial using hands that are driven by the pointer mechanism. Hands are usually designed in the form of a rod, rotatably mounted on a pointer shaft protruding through a bore in the dial, and arranged over a display side of the dial, so that the hands sweep over a circular (partial) surface of the dial.
The pointer movement consists of the parts minute wheel, quarter tube (this carries the minute hand), change wheel and hour wheel (this carries the hour hand).
The pointer mechanism transmits the drive of the minute wheel shaft. The minute wheel, the change wheel and the hour tube with change gear translate the respective pointer speed. The speed of rotation of the minute wheel is reduced via a change wheel and a change drive to the hour tube, which only rotates at 1/12-revolution per hour. There is a total transmission ratio of 1:12 or 1:24 between the quarter tube and the hour wheel, depending on a 12-hour or 24-hour scale. The hour hand is attached to the hour tube and the minute hand to the quarter tube. The quarter tube is connected to the minute wheel shaft or minute tube via a slip clutch. The slip clutch allows you to set the time after pulling the crown.
An object of the invention is to modify known mechanical clockworks so that the oscillating system, the crown wheel and the ratchet wheel can be viewed from the front of the clockwork and the winding and pointer setting mechanism can be viewed from the rear of the clockwork.
These objects are achieved by the subject matter of claim 1. Advantageous refinements and developments are described in the dependent claims.
For this purpose, in a clockwork, which is a work plate with bearings in which mechanical components such as barrel, clockwork, pointer movement, vibration system and the like are stored on the opposite side by means of further bearings in at least one block or / and at least one bridge, wherein The work plate forms the front of the clockwork facing a dial, which is surmounted by one or more pointer shafts. It is proposed that an intermediate wheel be arranged between the crown wheel and the ratchet wheel to reverse the direction of travel.
It can further be provided that the escapement is mirrored with the vibration system. It can also be provided that the ratchet wheel of the barrel is arranged on the front of the clockwork.
According to another embodiment it is provided that the barrel shaft is mounted on the back of the clockwork in the wheel bridge, and on the front of the clockwork the ratchet wheel is fixedly connected to the spring core and is rotatably mounted relative to the barrel shaft in the work plate.
According to a further embodiment it is provided that between the ratchet wheel and barrel an essentially ring-shaped pawl lever has elongated holes and is guided in these elongated holes between shoulder pins and the circuit board.
Finally, it can be provided according to a further embodiment that a balance stop comprises a brake spring which acts on the balance when a push rod is moved from a clutch lever of the elevator unit to the brake spring.
The invention will be explained in more detail using an exemplary embodiment and associated drawings. In it shows
1 is the front of an embodiment of the proposed clockwork,
2 the back of the same clockwork,
CH 714 822 A2
3 shows a section through the barrel,
4 is an exploded view of the barrel and wheel bridge,
Fig. 5 shows a section through the pointer mechanism, and
Fig. 6, the elevator unit and the balance stop.
On the front of the clockwork shown in Fig. 1, the balance cock with the swing system 16, the crown wheel 4, the intermediate wheel 5, the ratchet wheel 6 and the structure with a solid 3/4 board 1 are clearly visible. The time display has pointer waves 3 for a central hour and minute hand and a small second at 6 o'clock.
The arranged on the caliber front plate 1 has due to the intermediate wheel 5 in the elevator in the form of a 3/4 board (instead of a 2/3 board of the wheel bridge on the caliber back).
At the same time on the back of the clockwork shown in Fig. 2, the elevator mechanism is explicitly open in the construction to allow an unobstructed view of the operation of the elevator unit 19 and the hand setting mechanism with the seconds stop.
The back of the caliber now forms a continuous wheel bridge 15 which is only broken open for the elevator unit 19. Breakthroughs allow a look at the work of the vibration system 16. The drive wheels and the barrel 10 are supported with sapphire stones in screwed raised chatons.
The clockwork shown is mirrored, as it were, to known clockworks, the work plate 1 designed as a 3/4 board forming the front and the - except for a recess for the elevator unit - wheel bridge 15 designed as a full board forming the back, and the Pointer shafts 3 for hour, minute and second hands protrude through the work plate 1.
Without further constructive measures, the direction of rotation of the drive and thus also that of the time display would be reversed if the construction were simply mirrored. In the exemplary embodiment shown, further design changes were therefore made in order to implement a correct direction of rotation of the pointers on the new front side.
An additional intermediate gear 5 between crown gear 4 and ratchet 6 reverses the direction of rotation of the barrel 10 and thus that of the whole drive. The mirrored escapement with the also mirrored oscillation system 16 (incl. Winding direction of the spiral spring) allow the drive on the dial side to run correctly.
By the intermediate wheel 5 in the elevator chain, the barrel 10 moved somewhat from the elevator group. Furthermore, the ratchet wheel 6 of the barrel 10 was placed on the front.
So there was room for an improved barrel storage, which is shown in Fig. 3 and in which the barrel 10 is stored in its sequence movement in two jewels.
The spring core 12 is designed as large as possible in its storage and forms with the triple screwed ratchet wheel 6 a unit that summarizes the upper bearing block for the barrel shaft 11 in a chat. The lower bearing block for the barrel barrel 11 is held in the wheel bridge 15 with a screwed chaton.
Due to the large diameter of the spring core 12 for the bearing approach and the three cap stones, a tilt and height-free seat of the spring core 12 can be made possible.
As can be seen from Fig. 4, the radial mounting of the spring core 12 in the work plate 10 is realized with a simple and replaceable bearing ring 2.
The return of the ratchet lock is realized via a ratchet lever 13 which is mounted concentrically with the barrel 10. The pawl lever 13 resembles a ring and is also guided radially on the bearing ring of the spring core 12 in the board. The pawl lever 13 is guided as an axial bearing between three shoulder pins and the board. Special elongated holes enable easy assembly and disassembly of the entire locking mechanism. The assembled ratchet is secured by a bolt 14, which also serves as an end stop for the return.
The pointer mechanism is shown in Fig. 5. The hour wheel 7 is arranged in the height between the ratchet wheel 6 and the barrel 10 in order to enable the desired presence of the elevator wheels on the dial side. The hour wheel 7 and the change wheel 8 are stored under a filigree change wheel bridge 9. The change wheel 8 is mounted between sapphire stones. Hour wheel 7 and change wheel 8 have a leg with chamfers.
The balance stop is shown in Fig. 6. The position on the clutch lever 20 is tapped in the pointer position in order to stop the balance 16 at the attachment for the safety roller (knife roller) with a brake spring 17. For this, in the exemplary embodiment shown, no actual lever mechanism is used, but a push rod 18, which transmits the braking position from the clutch lever 20 directly to the brake spring 17.
CH 714 822 A2 The brake spring 17 takes over the balance stop once and springs in for a constant braking force. In the same way, this brake spring 17 also guides the push rod 18 into its rest position after starting the drive (actuation of the pusher).
Reference symbol list [0033]
Main plate
bearing ring
pointer shaft
Crown wheel
idler
ratchet wheel
hour wheel
change gear
Wechselradbrücke
barrel
Barrel arbor
innerspring
Ratchet lever
bars
wheel bridge
oscillating system
brake spring
pushrod
lift unit
clutch lever
claims

权利要求:
Claims (6)
[1]
1. Clockwork, comprising a work plate (1) with bearings in which mechanical components such as barrel (10), clockwork, pointer movement (7,8), vibration system (16) and the like on the opposite side by means of further bearings in at least one block or / and at least one bridge (15, 9) are mounted, the work plate (1) forming the front of the clockwork facing a dial, which is surmounted by one or more pointer shafts (3) and in which the direction of rotation is reversed between the crown wheel (4) and Ratchet wheel (6) an intermediate wheel (5) is arranged.
[2]
2. Clockwork according to claim 1, wherein the escapement with the vibration system (16) is mirrored.
[3]
3. Clockwork according to claim 1 or 2, wherein the ratchet wheel (6) of the barrel (10) is arranged on the front of the clockwork.
[4]
4. Clockwork according to one of claims 1 to 3, in which the barrel shaft is mounted on the back of the clockwork in the wheel bridge, and on the front of the clockwork, the ratchet wheel is fixedly connected to the spring core and is rotatably mounted relative to the barrel shaft in the work plate.
[5]
5. Clockwork according to one of claims 1 to 4, in which a substantially annular pawl lever has elongated holes between the ratchet wheel and barrel and is guided in these elongated holes between shoulder pins and the circuit board.
[6]
6. Clockwork according to one of claims 1 to 5, wherein a balance stop comprises a brake spring which acts on the balance when a push rod is moved from a clutch lever of the elevator unit to the brake spring.

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同族专利:

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公开号 | 公开日

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CH714822B1|2021-11-15|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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CH00378/18A|CH714822B1|2018-03-21|2018-03-21|Clockwork.|CH00378/18A| CH714822B1|2018-03-21|2018-03-21|Clockwork.|