EA001011B1 - Mechanical system indicating large size calendar date for watch and small clock movements - Google Patents

Abstract

1. A mechanical system indicating large size calendar date for watch and small clock movements , characterized in that said mechanical system comprises a dial plate with a large size open window, a block of units comprising a unit disk with indicating ciphers from 0 to 9, forming an integral with a star of units, a block of the ten's of the month with indicating ciphers from 0 to 3 forming an integral with a star of the ten's of the month, wherein the ciphers are applied on the disks of units and of the ten's of the month providing their appearance in succession in the right and correspondingly in the left part of the large size open window, and the stars of units and the ten's of the month are mounted enabling to operate each via a corresponding star arranged on a ring, said ring raised notches drive each star one index notch at a time taking into account thirty one notches per one revolution. 2. A mechanical system of claim 1, characterized in that the blocks of units and of the ten's of the month are mounted on a bottom plate enabling to turn around parallel axes, the distance between which corresponds to the position of the toothed rings of the disks of units and of the ten's of the month. 3. A mechanical system of claim 1 or 2, characterized in that the line, connecting the centers of rotation of the blocks of units and of the ten's of month, is perpendicular to the line, connecting the indicators of 6H-12H on the dial plate. 4. A mechanical system of any one of the preceding claim, characterized in that the large size open window is between the center of the dial plate and the indicators of 6H-12H. 5. A mechanical system of any preceding claim, characterized in that the star indicating the units of the month is arranged on the toothed ring and comprises thirty one notches, wherein said notches are adapted to cooperate with a 10-toothed star indicating the units of the month. 6. A mechanical system of any one of preceding claim, characterized in that the star indicating the ten's of the month comprises four notches which coincide with notches 31, 10, 20 and 30 of the star indicating the units of the month of said toothed ring, wherein the star, indicating the ten's of the month, comprises four teeth. 7. A mechanical system of claim 6, characterized in that the star indicating the ten's of the month is arranged on the toothed ring comprises four additional teeth spaced between said teeth of said star and co-operates with the 8-toothed star of the ten's of the month, wherein the disk of the ten's of the month comprises a series of ciphers 0,0, 1,1, 2,2, 3,3. 8. A mechanical system of any one of the preceding claim, characterized in that the ciphers, drawn on the disks of the units and of the ten's of the month, are tangentially disposed and equidistantly spaced along the periphery of said disks. 9. A mechanical system of one of the preceding claim 2 to 8, characterized in that comprises a spring fixed to the bottom plate, said spring has two branches each of which cooperates with one stars to maintain them in a stable angular position in between the operation. 10. A mechanical system of any one of the preceding claim, characterized in that the toothed ring is fixed on the watch movement. 11. A mechanical system of any one of the preceding claim, characterized in that the toothed ring is the watch movement. 12. The watch movement comprising a system of toothed stars which moves each star one index notch at a time completing a full revolution in thirty one notch, characterized in that said system of toothed stars operates the watch movement of one of the preceding claim.

Description

The aim of the invention is the creation of a large-format date display mechanism for all types of clockworks, in particular wrist and table clocks, with increased readability and a simplified design, the implementation of which requires a limited number of parts and assemblies.

The aim of the invention is also to reduce the dimensions of the aforementioned mechanism (in particular, by reducing the height) and to simplify its coordination after preliminary assembly of all nodes with all types of existing watch mechanisms of a wristwatch containing a classical date display system by means of a reference wheel, provided that the indication mechanism can be set in motion by the reference wheel of the date of the movement of a specific wristwatch after making the appropriate changes.

The object of the invention is the creation of a large-format date display mechanism for all types of watch movements of wrist and table clocks, which allows achieving the above goals and contains the distinctive features listed in the first paragraph of the formula.

Description of the prior art

Presently known mechanisms for large-format date display are very complex, voluminous, and therefore represent great difficulties in manufacturing due to the aforementioned complexity and the large number of required parts, which is why the manufacturing cost of such mechanisms is very high.

A direct consequence of the foregoing is the complexity of the installation of existing watch movements, as well as a corresponding increase in the dimensions of the named watch movements, which often leads to a deterioration in the aesthetic properties of watches and their marketing opportunities at affordable prices.

Most existing systems have limited capabilities due to the small size of the date display digits, which necessitates the installation of magnifying glasses to facilitate reading.

Brief Description of the Drawing

The attached figure schematically shows a view in the analysis of the mechanism of large-format date display, which includes three movable elements.

The mechanism can be illustrated at the following five levels:

- level A: watch mechanism;

- level B: a modified primary date wheel or a programmable wheel that replaces the original wheel, or a combination of the original wheel and the program wheel (first node);

- level C: the plate surrounding the wheel (s) of the reference level B and intended for mounting on a clockwork;

- level Ό: a system containing vertical axes independent of each other, each of which supports a gear sprocket (with a different number of teeth) and an indication disk (second and third node);

- level E: clock dial with two cut large-format windows.

Level A Description

The clock mechanism is understood as the mechanism of ordinary wrist watches, containing the classic date display system by means of a reference wheel, which does not require special explanations.

Level B Description

This mechanism contains, first of all, a programmable reference wheel 1, intended either to replace the original date reference wheel 2, or to install on this original wheel 2.

This programmable wheel contains two gear rims 3, 4, and each rim is a drive track and consists of 31 teeth of various lengths, heights and sizes.

This reference wheel is driven from the clock wheel of the clock mechanism (level A) through a kinematic chain at a speed of 1 step per day in order to complete a revolution for 31 days.

The movement is transmitted in a step-by-step manner (one step per day around midnight).

The drive of this programmable reference wheel 1 can also be carried out from a stepper motor (quartz mechanism) through a transmission driven by this engine, and the engine itself is controlled from an electronic time clock of this clock mechanism.

The programmable gear wheel contains an internal gear ring 3 consisting of 31 teeth and forming a drive track of units, and an internal gear ring 4 consisting of 31 teeth and forming, in turn, a drive track of decades for indicating the date.

On the inner crown 3, only 30 teeth out of 31 are active on the drive track. Thus, the system remains motionless for 2 days when the 31st of the month and the 1st of the next month are indicated due to inactivity of the 31st tooth.

On the inner crown 4, only 4 teeth from the 31st are active in order to program the drive track of decades that will be blocked for 10 consecutive days (first decade, second decade, third decade).

Crowns 3 and 4 can be on the same level. In this case, the teeth forming up to 3 decades of horns will be longer than the teeth of the crown forming the track of units.

The crowns 3 and 4 can also be arranged with a shift in height so that the crown forming the track of units will be at a higher level than the crown forming the track of decades.

Level C Description

Level C is formed by a plate 5 surrounding the programmable wheel and intended for mounting on a clock mechanism (level A).

This plate 5 contains a gap 6 in the form of an arc sector for passing the date wheel (programmable wheel 1 or a combination of wheels 1, 2).

Level Description Ό

This mechanism also contains a unit node and a decade node.

The unit node consists of an asterisk of 7 units with 10 teeth making up a whole with it, from a unit display disk 8, on the top surface of which there are numbers from 0 to 9, located tangentially and evenly distributed around the periphery of the named unit 8 units.

The named unit assembly is rotated around its axis on the plate 5 and is held in position by a screw 9. The unit is positioned so that the teeth of the unit sprocket 7 are at the same level as the track formed by the inner rim 3 of the programmed reference wheel.

The decade node consists of an asterisk 1 0 decades with 4, 8, or 12 teeth that make up a single unit from it, from a disk of 11 indication of decades, on the upper surface of which there are numbers from 0 to 3 (one, two or three series of digits) located tangentially and evenly distributed on the periphery of the disk for 11 decades.

The named node of the decades rotates around its axis on the plate 5 and is held in position by the axial screw 1 2. The node is positioned so that the teeth of the sprocket 10 decades are at the same level with the track formed by the inner crown 4 of the programmed readout.

A spring 13 with two branches is mounted on the plate 5 with an axial screw 1 4, each of these branches being a suspension interacting with sprockets 7 and 10 to block their angular parts in the intervals between the next actuation.

Both nodes, respectively consisting of a gear sprocket 7, an indication disc 8, as well as an axial screw 9 (one assembly) and a gear sprocket 1 0, an indication disc 11, and an axial screw 1 2 (another assembly), are completely independent of each other .

Level E Description

The display mechanism has a dial 15 with a large-format slot 1 6, which has 2 windows of the same size, in principle at least 2x4 mm, and this dial covers the entire display mechanism and is mounted on the plate 5 with four legs 17.

Description of the mechanism

By driving the sprocket of 7 units through 30 active teeth of the crown, 3 units of the wheel 1 of the date count, the unit display disk 8 turns one step a day and makes a complete revolution in ten days, thus marking the number of units for each day, corresponding to the date in slot 16 of dial 15, with the exception of the third full revolution, which takes 11 days, since the track programmed by crown 3 does not use one of the teeth at the time when unit 1 in the date of the 31st day of the month becomes the first day of the track month.

By driving the sprockets 1 0 decades through the crown of 4 decades of the programmable dial, the dial 11 of the decade display is rotated one, two or three steps every ten days so that the figure corresponding to the decade of the date appears in the slot 1 6 of the dial 15.

Depending on the number of teeth of the sprocket 1 0 and the crown of 4 decades, the disk of 11 decades makes a complete revolution in 1, 2 or 3 months.

Location of indicator discs

The proposed mechanism allows you to place a large-format slot 1 6 of the dial 1 5 at many points on the surface of the dial 1 5 provided that both dials are always mounted symmetrically on both sides of a particular axis so that decades and units are aligned and their indication is carried out respectively on the left and right from the touch point.

The possibilities of topological placement of the mechanism proposed in this invention allow you to vary the location of the slot within the sector between 11 hours and 1 hour in the upper half of the dial and the sector between 5 hours and 7 hours in the lower half of the dial.

The advantages of the proposed mechanism

This mechanism contains a very limited number of parts and only three nodes (two nodes at level Ό and one node at level B). The proposed mechanism can be fully assembled and pre-mounted on the plate 5 with the exception of the programmable wheel 1 reference, which is installed directly on the clock mechanism.

After mounting the plate on the clock mechanism, it is equipped with a dial for large-format date display.

Slot 16 has dimensions that are twice the size of a conventional slot for a date.

In addition, the scope of the display mechanism is very small, which allows you to adapt it to all types of currently existing watch mechanisms that provide date displays.

This display mechanism compares favorably with simplicity, a limited number of parts, reliability and low manufacturing cost.

In addition, it is obvious that this invention is intended to manufacture and manufacture a watch mechanism for wrist and table clocks, equipped with a large-format date display mechanism in accordance with the above description.

Claims (10)

CLAIM 1. The mechanism of large-scale date display for watch movements of wrist and desktop clocks, characterized in that it contains a dial, equipped with a large-format slot, a unit node containing a unit disk with numbers from 0 to 9, integral with an asterisk of units, a node decades containing the disk of the decades with numbers from 0 to 3, which are integral with the asterisk of the decades, while the numbers are applied to the disks of the units and the decades to ensure appearance in order in the right, respectively, in the left part of the edge the end of the format of the dial, and the asterisks of the units and decades are installed with the ability to drive each directly from the corresponding crown located on the wheel, driven by the clockwork in a step-by-step movement at the rate of thirty-one steps one full turn. 2. The mechanism according to claim 1, characterized in that the units of units and decades are mounted on the plate so that they can be rotated around parallel axes, the distance between which is chosen according to the arrangement of the gear wheels of the unit disks and decades. 3. The mechanism according to claim 1 or 2, characterized in that the line connecting the centers of rotation of units of units and decades is perpendicular to the straight line connecting indicators 6 and 1 for 2 hours on the dial. 4. Mechanism according to one of the preceding paragraphs, characterized in that the large-format slot of the dial is located between the center of the dial and the indicators 1 2 or 6 hours respectively. 5. Mechanism according to one of the preceding paragraphs, characterized in that the crown of units located on the reference wheel contains thirty-one teeth, and these teeth are adapted to interact with the ten teeth contained in the asterisk units. 6. Mechanism according to one of the preceding paragraphs, characterized in that the crown of the decades located on the reference wheel contains four teeth coinciding with the teeth of 31, 10, 20 and 30 crowns of the units of this reference wheel, while the asterisk of the decades contains four teeth. 7. The mechanism according to claim 6, characterized in that the crown of the decades located on the reference wheel contains four additional teeth located between the above-mentioned teeth of this crown and acting together with an asterisk of eight teeth of the node of the decades, and the disk of the decades contains a series of numbers 0, 0, 1, 1, 2.2, 3.3. 8. The mechanism according to any one of the preceding paragraphs, characterized in that the numbers printed on the disks of units and decades are tangentially and evenly distributed along the periphery of the disks. 9. The mechanism according to one of the preceding paragraphs 2 to 8, characterized in that it contains a spring with two branches, mounted on a plate, each of which is a suspension that interacts with one of the sprockets of units and decades to keep them in a stable angular position in between the next actuation. I 0. The mechanism according to any one of the preceding paragraphs, characterized in that the reference wheel is fixed on the date wheel of the clock mechanism. Ii. The mechanism according to any one of the preceding paragraphs, characterized in that the reference wheel is a date wheel of a clock mechanism. 12. A clock mechanism containing a system of gear wheels with a step-by-step drive of a wheel making a complete revolution in thirty one steps, characterized in that the said system of gear wheels sets in motion a gear wheel according to one of the preceding paragraphs 1 to 11.