DE449837C - Adjustable calendar - Google Patents

Description

Adjustable calendar. The subject of the main patent forms a adjustable calendar with annual, Month, week and day information, provided that the individual discs are powered by Get ratchets, their tooth contact point during the for each circuit occurring angular deflection is variable, for the purpose of being proportionate simple means with a single daily ratchet movement to control the discs mutually so that taking into account the respective The duration of the month and the leap years are always due to the only one-time switching movement the correct date is displayed before a show opening.

According to the present improvement, the year and month data are distributed over several discs in order for the moving between two fixed stops Fast switching to achieve a larger deflection and thus a safe effect. Furthermore, the different ones, which can be rotated concentrically around a common axis, are earthed Disks by external gears and accordingly: arrangement of the ratchets driven, but the basic principle is retained that the ratchet attack points for the different circuits also have a different distance from the common Preserve the center of the slices. Another improvement is that the calendar is associated with a clock that switches step-by-step of the calendar automatically once every twenty-four hours.

The invention will be explained in more detail with reference to the accompanying drawing. It means: Fig. I a front view of the one behind the other, with external teeth equipped discs, Fig. 2 is a side view of Fig. i, Fig. 3, 4, 5, 6 and 7 special representations of the disks driven by external gearing, Fig. 8 and 9 a front and side view of a pawl for the external toothing. Fig. I o a clock provided with a calendar in a front view, Fig. I i in a side view, Fig. I, -, a view of the drive of the pawl through the clock and Fig.13 a Section through the hour hand shaft, Figure 14 the front view of another embodiment, in which the external teeth are arranged directly on the circumference of the one behind the other Discs are provided, Fig. 15 a section through the calendar according to Fig. 14, and Figures 16 to 23 show the various discs arranged one behind the other the embodiment according to Fig. 14 and 15, to the exact shape and design of this To illustrate disks with their teeth.

In the embodiment of Figs. I to 9, the arrangement of the disks a-e generally the same as in the embodiment described in the main patent, only that the drive takes place through external teeth and not internal teeth. to for this purpose the individual disks are provided with gears a111, b111, c111, d111 and e111 equipped. The pawls f111, f11, f1 ° (Fig. 8) are on joints f ", which are under the action of a spring f14 and can swing out about the axis i are.

In this case, the drag spring d2 engages in depressions d3 of the Gear b1 °, and there are only five wells provided because for the months with 31 days the switching of the disc b in this case by the pawl takes place immediately. Figs. I11 to 12 show in which way the calendar can be associated with a watch. The hour hand shaft s is driving through a gear l a twice as large gear vi, on whose shaft o a curve thumb 11l is attached. This curve thumb revolves around his once every 24 hours Axis and swings out the joint s-, which is traversed by a rod s, through joint s1 the joint s13 and thereby the switching pawls f111, f11, f12 (Fig. 8) moved in such a way that the switch pawl makes a one-time switching every day takes place.

If the clock has stopped, you can remove a coupling pin t expose the rod s and move it by hand so that the Calendar can also be made independently of the clock. In the execution form In Figs. 14 to 23 it is the discs with the various indications Enclosing housing at the bottom completely free and can be used for advertising notices be used. The days of the month are distributed over three slices b1, b2 and b3, so that the disk b1 the days i to 9, the disk b2 the days i11 to 211, the Disk b3 has days 21 to 31.

The discs b1 and b2 are each provided with a cutout b11 and b7, around the digits 21 to 31 both through the opening b 7 and through the opening to be able to see through.

The annual ring is also divided into two disks e1 and e2, so that the calendar can be used for a larger number of years: It should also be noted that the disks a, d and e have radial bars, uni through the spaces formed by them to be able to read the information behind it.

The mode of operation in the embodiment of Figs. 14 to 23 is as follows: The drawing assumes that February 28 of a normal year, and although of the year 1926, is switched on.

To view the calendar on the i. March 1926 zti, the button i (Fig. 15) is turned in the direction of the arrow in Fig. 14, whereby the lever arm f13 (Alb. 9), which is limited in its stroke by the two fixed stop pins g (Fig. 14), executes an angular deflection. The lever f13 has a bow-like design at its upper end and there receives a wire h (Fig. 15) serving as a pawl. It swings by its own weight or still supported by a spring downwards as far as the teeth of the wheels a, b, d, e. enable.

The bumps and the Hitting the discs etc. compensated for errors that occur.

When switching to the i. March 1926 the wire h takes the disk b3 around a tooth with. At the same time, the wire engages in disk d and switches March a. The drag spring d2 (Fig. I9) engages in one of the recesses d3 of the Insert disc b1 (Fig. 18) and bring the "i" in front of the viewing opening. Simultaneously the day disk a is also rotated further by one day through the wire dz.

The disc b3 is when switching up to the 4th day, in the present Fall until March 4th, invisible behind disc b1, moved past the 31st, until the other field between the 21st and 31st is at the viewing opening.

On March 9, the drag spring pushes b4 the disc b1 by engaging in the recess b - 1 of the disc b2 with the io behind the shade b ".

With the next switching operations, the target 1l stops, and the disc b- will be alone until the 2o. switched. From 2o. the 21st will be the Slice bz shifted one step further, so that the opening h, the main viewing opening facing. At the same time, the disc b3 is switched from the empty field to the 21st etc.

On December 31, wire 1a falls into the lowest tooth and simultaneously engages in disc a (Fig. 16), b1 (Fig. i £), b3 (Fig. 20), d (Fig. i9), e1 (Fig. 22) and e ° (Fig. 23).

The disc e3 will only be a111 December 31 for ordinary years rotated by one step, but also on January 31st and February 28th in the leap year and moved one step further on February 29th.

e 3 "(Fig. 23) are the teeth that switch the disk e3 between cause two consecutive leap years. Besides these normal teeth are further special teeth e31 to e34 are provided for the following purposes.

ON December 31st of a leap year, e.g. B. 1928, previous normal year the disc e3 is switched by one step by the tooth e31.

In the set leap year 1928, the disc will be released on January 31st e3 by the tooth e3 = rotated one more step. Prevented on February 28, 1928 the tooth e33 entrains the month disc d because it is one tooth depth higher than the tooth that is intended for the gear engagement of the disk d.

On February 29, the tooth e31 gives the tooth for the setting of the Disk free, and March is set.

The one provided with uniform tooth pitches and up to a certain one Years (in the present case up to 1944) disc e2 is behind the year disc e1, which in the present case shows the years from 1926 to 1934 contains. The year disc e1 is provided with a gap through which the year numbers of the disk e2 behind it are visible, and also has the toothing the disk cl a gap in order to be in connection with the control disk e 'and the from this controlled pawl the proper setting of the annual disks to enable e1 and e2.

The individual calendar disks a-e are separated by disks .s separated, and the entire disks are expediently under the action of a Spring s1, which ensures that all disks and the disks touch each other As they turn, grind a-e along the disks s secured against rotation.

The friction between the disks d-e on the one hand and the disks On the other hand, it is so big that the calendar slices jump over the respective The set position is reliably prevented without the use of a special safety catch will. The disks s are secured against rotation on the central shaft, which is z. B. can be achieved in that the discs with non-circular holes on the shaft corresponding cross-section and thereby lnit with the. Calendar discs do not be able to turn.

Claims (5)

PATLNNTANSYIZÜCHL: 1. Adjustable calendar -according to patent 449 o8i, characterized in that the base radius for the teeth of the switching disks is the same is large and one that is guided over all the gears and running parallel to the axis Wire (h) serves as a common ratchet. 2. Calendar according to claim i, characterized characterized in that the days of the month are distributed over more than two slices (b1, b2, b3) are and that by corresponding excerpts (b "and b ') each digit of the different Discs (bl to b3) can be made visible in the inspection opening. 3. Calendar according to claim i, characterized in that the year information is spread over several disks (ei, e2) are distributed. . 4. Calendar according to claim i, characterized in that the leap year control disk (e3) is provided separately from the year disks (e1, e2) and on February 28 of a leap year by the preceding tooth (e33) switching on the i. March prevented. 5. Calendar according to claim i and 3, characterized in that the front annual disc (e1) has a tooth gap (e4 °) owns, after the end of the year on the front year disc (e1) and after the opening (e5 °) has been activated, the front one is switched on Year disc (e1) prevented, so that only the year disc behind it (e °) is advanced.