HK1106034B - Watch - Google Patents

Description

The invention relates to a watch with a first clock wheel, which can be driven by a drive which can be rotated about one axis, carrying a first hour hand and a second clock wheel, which can be driven by a drive which can be rotated about a second hour hand, connected to the first clock wheel by a spring-loaded restraint link and which can be driven by a second clock wheel, carrying a drive wheel, with a manually rotatable clock shaft, which can be used to adjust both clock wheels together or only one of the clock wheels alone, the first clock wheel being adjustable by the drive wheel and the second clock wheel or second clock wheel being adjustable by a manually operated clock-lock locking device.

In order to enable the first hour hand to be set in the same position as the second hour hand in such a watch (EP 1 336 908 A2), a second hour hand must be set independently of the time-zone ring, and a third position of the adjusting shaft may be used, the first position being used for lifting the watch, the second position for adjusting the hands in their entirety and the third position for setting the second hour hand independently of the time-zone ring.

The small ways of moving the shifting shaft mean that it is easy to take a wrong position, which leads to an unwanted shifting of the watch.

The US 2 641 898 and CH 10 81 266 D are known to be watches of the type mentioned at the outset.

EP-A-1 336 907 is a watch with a first clock wheel, which can be driven by a drive which can be rotated about one axis, carrying a first hour hand and a second clock wheel, which can be driven by a second clock hand, which can be connected to the first clock hand by a spring-loaded connection and which can be driven by a second clock hand, and a manual rotating clock shaft, which can be driven by a drive wheel and which can be used to adjust both clock hands together or only one of the clock hands alone.

From DE 38 32 514 C1 and WO 2004/053599 A2 world time clocks with a first and second hour hand are known

The purpose of the invention is to create a clock of the type described at the outset which, in simple construction, allows the first hour hand to be set separately.

This problem is solved by the fact that a time-zone ring fitted with a rotating crown of teeth can be adjusted in particular by a manually operated adjustment mechanism in twenty-four time-zone steps and at the same time the second hour hand can be reset in hour steps, while the first hour hand remains unreset.

It is understood that the first clock wheel does not have to drive the second clock wheel or a third clock tube carrying the second hour hand directly.

The solution of the present invention allows the first hour hand to be adjusted easily without the need to adjust the second hour hand, which is used to indicate a different time zone.

To this end, the second hour hand can be locked in one direction when the locking device is engaged and freely driven in the other direction by the first hour hand, preferably the second hour hand can be freely driven clockwise by the first hour hand and freely driven clockwise by the locking device.

The first and second axes may be coaxed.

If the time display of the two different time zones is on non-concentric scales, the first and second axes may also be arranged parallel to each other and the rotation of the first clock wheel may be transmitted to the second clock wheel via transmission wheels.

The second clock wheel can be locked simply by means of a locking device with a rotational locking pin which can be inserted into a gear gap of the second clock wheel or into the gear gap of a wheel fixed on the third clock wheel or into the gear gap of a wheel of a first gear unit connected to the second clock wheel.

For this purpose, the locking link may be rotatable around a pivot axis and be loaded against the force of a spring in the outgoing direction from the second clock wheel or wheel by a transmission lever of the locking device rotatable around a lever axis.

For easy operation, the transmission lever is preferably adjustable by a manually operated pusher mechanism.

It is a cost-saving measure if the adjustment mechanism is a manually operated pressure mechanism.

The adjustment mechanism may have a swivel-driven crank, from which a crank wheel which is inserted into the gear crown of the time zone ring can be driven, whereby the time zone ring can be adjusted by one time zone step per swivel stroke of the crank.

The time zone ring's crown has preferably 192 teeth and the gear wheel 32 teeth, with the gear wheel being drivable by the crank by 8 teeth per crank.

To drive the steering wheel, the steering wheel can be simply coaxially connected to a four-star, which can be rotated by the crank by 90° per crank.

To avoid the need for the crank to move the fourth fully into its new position and to ensure that the fourth can be precisely fixed in its new position, a spring-loaded rest may be used to intervene in a gap in the fourth, determining the resting position of the fourth.

In order to adjust the second hour hand simultaneously with the adjustment of the time-zone ring, a time-zone knob is conveniently fitted to the gear of the time-zone ring, which, when driven by the gear, allows a time-zone drive to be driven by a clutch by a time-zone step, which is connected directly or by a time-zone drive to the second clock wheel and which moves it by one hour.

This is done by using a component in a dual way, where the time zone drive teeth interfere with the gear shaft wheel teeth.

In order to determine whether the first hour hand is rotating every 12 hours, the first hour hand may be capable of operating a first day/night wheel with a rotation every 24 hours, which can operate a first display symbol, in particular a first day/night hand, which can operate a first day/night wheel on a day/night scale, and the first day/night wheel can be operated by a second gear from the first hour.

For the same reason, a second day/night wheel may be driven by the second clockwise wheel at a rate of one revolution every 24 hours, by means of which a second indicator symbol, in particular a second day/night hand, which shows the hours of day and night on a second day/night scale, may be driven, again the second day/night wheel being driven by the first gear of the second clockwise wheel.

For multiple use, the first gear wheel may be the second day/after wheel.

An example of the invention is shown in the figure and is described in more detail below. Figure 1a view of a dial with a time zone ring of a clockFigure 2a view of the hands-on and shift mechanism of the clock according to Figure 1Figure 3a further view of the hands-on and shift mechanism of the clock according to Figure 1Figure 4a cross-section of hands-on and shift mechanism according to Figure 2 in the area of the first hour handFigure 5a cross-section of hands-on and shift mechanism according to Figure 2 in the area of the second hour hand.

The circular dial 10 shown in Figure 1 has a first hour hand 1 and a first minute hand 2, which can be driven by an unmarked movement around a first hand axis 3 and whose hands overlap a first circular scale 4 in the middle left-hand area of the dial 10.

In the six-hour position of the first circular scale 4, a small second scale 5 is placed, which is crossed by a second hand 6.

In the twelve o'clock position of the first circular scale 4 there is a circular first day/night scale 7 with a rotating pointer moving along the first indicator symbol.

In the upper right of the 10 digit, there is a double window 9 to display a date.

In the lower right of the dial 10 there is a second hour hand 11 and a second minute hand 12, which are rotatable around a second hand axis 13 and overlap a second circular scale 14 with their hands.

To the left of the second circular scale 14 is a second day/night scale 17 which is partly incorporated in it and on which a rotating second indicator symbol 18 moves along.

The entire dial 10 is enclosed by a time zone ring 15 on which twenty-four time zones are evenly distributed in the form of city names representative of the respective time zone.

The first hour hand 1 is mounted on a first hour hand 19 which carries a first hour wheel 16 and a first minute wave 20 is placed in the first hour hand 19 which carries the first minute hand 2 and to which a minute drive 21 is concentrically mounted.

The first clock wheel 16 is driven by an alternating drive 66 by the minute drive 21 driven by the movement, which also drives a second minute drive 24 carrying the second minute hand 12 by means of the first minute wheel 20 and transmission wheels 22.

The second minute hand 24 is concentrically arranged in a second hour hand 25 which carries a second hour hand 23 and to which a coaxial third hour hand 26 is connected by a spring-loaded resting connection which carries the second hour hand 11.

The restraint connector has a spring 28 which is rotatable on the second clock face 23 around an axis parallel to the second index 13 and which is inserted by a spring 29 with its clock face 31 into the gaps of a twelve-tooth gear 30 fixed on the third clock face 26.

Against the force of spring 29 the gear 31 can move out of the gap in which it is currently stuck and into the adjacent gap of gear 30.

On the third clock face 26 a wheel 32 with 23 teeth of a gear 33 is still fixed, which intervenes with its teeth in the teeth of another wheel 34 of the gear 33 with 46 teeth.

A latch 35 which can be rotated by a pivot axis parallel to the axis of rotation of the other wheel 34 may be fitted to a tooth gap of the other wheel 34 by means of a spring 36 and block a clockwise rotation of this other wheel 34.

A two-arm transmission lever 37 which is capable of being moved on a lever axle 38 can, by the free end of its first lever arm 39, engage the locking link 35 and, against the force of the spring 36, disengage the other wheel 34.

At the free end of the second lever arm 40 a long-bore frame 41 is formed into which a fixture 42 is inserted, which is arranged around a fixture 43 swiveling fixture 44. The fixture 44 is moved from a normal position as shown in Figure 3 by a manually operated pusher 45 against the force of a fixture 65 by a manual actuator.

When the manual loading of the pusher 45 is completed, the locking link 35 is moved again without intervention by the further wheel 34.

The 42-pin continues to intervene in a 46-long hole of a 47-pin that can be rotated on one axis.

The first 48 is rotated clockwise by the fifth 48 so that a spring is moved into a gap of the fifth 48 and the second 48 is moved out of this gap and into the area of the adjacent gap. By the spring-mounted grating in this adjacent gap, the fifth 48 is moved completely into a position 90° forward and kept in this position.

The spring 49 is located at one end of a swivel-mounted spring 50 which is supported by a spring 51 in the single-stage direction.

The time zone ring 15 is rotatable and has the one hundred and ninety-two teeth of its time zone ring 53 radially inward-facing.

By rotating the quadrilateral 48 by 90°, the gear 52 moves the crown 53 by eight teeth, which is a shift of the time zone ring 15 by one time zone.

The gear 53 is further fitted with the teeth of a rotating time-zone lathe 54 which, when driven by the gear 53, turns a clutch wheel 57 fixed to the time-zone drive 58.

When the movement is driven through the movement, the time zone knob 54 and the time zone drive 58 are uncoupled.

The time zone drive 58 continues to operate on the other wheel 34 so that, when a clock's hub is triggered by the pusher 45, it is rotated clockwise by one time zone step and thus unimpeded by the locking link 35. This movement is transmitted from the other wheel 34 and the gear lever 33 to wheel 32 and the third clock tube 26 is rotated by one time zone step. The gear 31 is moved out of a gap in the clock wheel 30 and is inserted into a neighboring gap.

The indicator symbols 8 and 18 on the day/night scale 7 and 17 indicate a different day or night range.

The watch has a clock face 62 which carries a crown 63 at its outer end and an unrepresented drive wheel at its inward end.

The control shaft 62 is axially shiftable in two positions. In the radially inward shifted position the control shaft serves as a lift shaft for lifting the watch.

In the radially outward position of the adjustment shaft 62, the drive wheel intervenes in the first minute shaft 20 so that, by turning the crown 63 and thus the adjustment shaft 62, all hands 1, 2, 11, 12 and indicator symbols 8 and 18 can be adjusted simultaneously forwards or backwards.

The permanent gear 22 always operates the first minute hand 2 and the second minute hand 12 in synchrony, even when the hand is in position.

However, the second hour hand 11 can be switched in clockwise steps and thus in time zone steps by pressing the printer 45 while the time zone ring 15 is switched in time zone steps. An index 64 located within the second circular scale 14 indicates the time zone assigned to the second hour hand 11 and the second display symbol 18 indicates whether the time is night or day on the second day/night scale 17.

If the second hour hand 11 is set to a different time zone, the first hour hand 1 remains unchanged.

If the first hour hand 1 is set to a specific time zone, pressing the time zone ring 15's knob 45 will adjust it until it reaches the desired position with respect to the index 64. When this position is reached, press the knob 45 and pull the crown 63 out and rotate the hands counterclockwise until the first hour hand 1 coincides with the second hour hand 11 and the first hour hand 8 with the second hour hand 18. In this operation, both minute hands 2 and 22, the first hour hand 1 and the first hour hand 8 remain in position on the second hour hand 11 and the second hour hand 18.

If the 45 is released again, the 63 hour hand 11 and the indicator symbol 18 are actuated again as the crown continues to turn.

List of reference marks

1st hour hand 2st minute hand 3st hand axis 4th circular scale 5th second scale 6th second hand 7th day/night scale 8th first display symbol 9th double window 10th dial 11th second hour hand 12th minute hand 13th second hand axis 14th second hour hand 15th time zone ring 16th hour hand 17th day/night scale 18th second display symbol 19th hour drive 20th minute wheel 21st minute drive 22nd transmission 23rd hour 24th minute drive 25th hour drive 26th hour drive 27th hour drive 28th wheel drive 28th wheel drive 29th wheel drive 30th wheel drive 31st wheel drive 32nd wheel drive 46th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 52th wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel drive 53rd wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 49th wheel 49th wheel 49th wheel 49th wheel 49th wheel 46th wheel 46th wheel 46th wheel 46th wheel 46th wheel 43rd wheel 53rd wheel 53rd wheel 53rd wheel 53rd wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th wheel 54th

Claims (21)

1. Timepiece comprising a first hour wheel (16), connected to a first hour tube (19), which is drivable by a drive rotatably about a first rotation axis (3) and bears a first hour hand (1), and comprising a second hour wheel (23), connected to a second hour tube (25), which is connected via a resilient latching connection to the first hour wheel (16) and is drivable by the first hour wheel (16) rotatably about a second rotation axis (13) and by which a second hour hand (11) is rotatably drivable, comprising a manually twistable hand-setting stem (62), which bears a drive wheel and by which both the two hour wheels (1, 11) jointly and just one of the hour wheels (1, 11) in isolation is adjustable, wherein the first hour wheel (16) is adjustable by the drive wheel, and the second hour wheel (23), or a third hour tube (26) bearing the second hour hand (11), is blockable by a manually actuable blocking device, characterized in that a time zone ring (15) provided with a circumferential gear rim (53) is adjustable in, in particular, twenty-four time zone steps by a manually actuable adjusting mechanism and, at the same time, the second hour hand (11) is advanceable in hourly steps, the first hour hand (1) remaining unadjusted.
2. Timepiece according to Claim 1, characterized in that the second hour tube (26), when the blocking device is actuated, is blockable in one rotational direction, and in the other rotational direction is drivable in a freely rotatable manner by the first hour wheel (16).
3. Timepiece according to Claim 2, characterized in that the second hour tube (26) is drivable in a freely rotatable manner in the clockwise rotational direction by the first hour wheel (16), and is blockable in the anti-clockwise rotational direction by the blocking device.
4. Timepiece according to one of the preceding claims, characterized in that the first rotation axis (3) and the second rotation axis (13) are arranged coaxially to each other.
5. Timepiece according to one of Claims 1 to 3, characterized in that the first rotation axis (3) and the second rotation axis (13) are arranged parallel to each other, and the rotary motion of the first hour wheel (16) can be transmitted via transmission wheels (22) to the second hour wheel (26).
6. Timepiece according to one of the preceding claims, characterized in that the blocking device has a stop click (35), which locks in one rotational direction and which can be latched into a tooth space of a wheel (3) fixedly disposed on the third hour tube (26) or into the tooth space of a wheel (34) of a first gear train (33) connected to the second hour wheel (26).
7. Timepiece according to Claim 6, characterized in that the stop click (35) is pivotable about a pivot axis and is loadable counter to the force of a spring (36), in the direction of unlatching from the wheel (30) or wheel (34), by a transmission lever (37), pivotable about a lever axis (38), of the blocking device.
8. Timepiece according to Claim 7, characterized in that the transmission lever (37) is pivotably loadable by a manually actuable push-piece mechanism.
9. Timepiece according to one of the preceding claims, characterized in that the adjusting mechanism is adjustable by the manually actuable push-piece mechanism.
10. Timepiece according to one of the preceding claims, characterized in that the adjusting mechanism possesses a pivotably drivable pawl (47), by which an adjusting wheel (52) engaging in the gear rim (53) of the time zone ring (15) can be rotatably driven.
11. Timepiece according to Claim 10, characterized in that the time zone ring (15) is adjustable by one time zone step per pivot stroke of the pawl (47).
12. Timepiece according to Claim 11, characterized in that the gear rim (53) of the time zone ring (15) possesses 192 teeth and the adjusting wheel (52) 32 teeth, the adjusting wheel (52) being rotatably drivable by the pawl (47) by 8 teeth per pawl stroke.
13. Timepiece according to one of Claims 10 to 12, characterized in that the adjusting wheel (52) is fixedly connected coaxially to a four-point star (48), which can be acted upon by the pawl (47) such that it can be twisted through 90° per pawl stroke.
14. Timepiece according to Claim 13, characterized in that a latch, determining the rest position of the four-point star (48) and engaging in a space of the four-point star (48), is spring-loaded.
15. Timepiece according to one of the preceding claims, characterized in that a time zone pinion (54) engages in the gear rim (53) of the time zone ring (15), which time zone pinion, when driven by the gear rim (53) through one time zone step via a coupling, can be used to rotatably drive a time zone pinion gear (58), which is connected directly or via a time zone drive train to the second hour wheel (26) and adjusts this by one hour.
16. Timepiece according to Claim 15, characterized in that the teeth of the time zone pinion gear (58) engage in the teeth of the wheel (34) of the gear train.
17. Timepiece according to one of the preceding claims, characterized in that a first day/night wheel (61) can be rotatably driven at a rate of one revolution every 24 hours by the first hour wheel (16), by which first day/night wheel a first display symbol (8), in particular a first day/night hand, can be rotatably driven, by which first day/night hand the day hours and the night hours are displayable on a day/night scale (7).
18. Timepiece according to Claim 17, characterized in that the first day/night wheel (61) can be rotatably driven via a second gear train by the first hour wheel (16).
19. Timepiece according to one of the preceding claims, characterized in that a second day/night wheel can be rotatably driven at a rate of one revolution every 24 hours by the second hour wheel (26), by which second day/night wheel a second display symbol (18), in particular a second day/night hand, can be rotatably driven, by which second day/night hand the day hours and the night hours are displayable on a second day/night scale (17).
20. Timepiece according to Claim 19, characterized in that the second day/night wheel can be rotatably driven via the first gear train (33) by the second hour wheel (26).
21. Timepiece according to Claim 20, characterized in that the wheel (34) of the first gear train is the second day/night wheel.