DE2301988A1 - TIMER MECHANISM FOR A CLOCK OR THE LIKE - Google Patents

Description

PAT K NTAN WALTE

DIPL.-ING. JOACHIM K. ZENZ DIPL.-ING. FRIEDRICH G. HELBER

ESSEN-BREDENEY ALFREDSTRASSE 383 TELEPHONE: (O2141) 472687 TELEGRAM ADDRESS: EL ROPATENTE ESSEN

File number: New registration Commeribank. Essen account 1816202 Postal checking account Essen No. 76 87

Name d. Note: Kabushiki Kaisha Koparu

My sign: K 60 Date January 15, 1972

Kabushiki Kaisha Koparu

Shimura 2-16-20, Itabashi-Ku, Tokyo-To, Japan

Timer mechanism for a clock or the like.

The invention relates to a timer and, more particularly, to a timing mechanism for a watch o. The like. In which a switch is accurate and reliable is opened and closed at specified times.

Timers for clocks in which a control cycle thereby is carried out that a switch is switched at a predetermined time and after a holding phase in the switched Position is returned to the starting position over a predetermined period of time are known (see e.g. Japanese interpretation document 38454/71). Timers of this type have the following basic construction: The Timer has a manually rotatable timing adjustment member, on the end face of at least a pair of Approaches is arranged and that on its circumference with a predetermined time interval (e.g. of 10 minutes) Time scale division is provided, the time being set by the time scale division

Two

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is brought into agreement with a fixed pointer. The set position is in a semi-fixed state held by a suitably designed ratchet mechanism attached to the timing adjuster. One to the timing adjuster opposite switch operating plate is arranged and designed so that they are synchronous moved with the hour wave of the clock. The switch operating plate is provided with at least one pair of curved slots provided, in which the aforementioned approaches can be indented. The switch operating plate is in the direction of the The timing adjuster is biased and arranged to open and close by moving it to the engaged position Controls closing operations of the switch. Therefore, when the switch operating plate rotates gradually with the passage of time and their curved slots come into a position exactly opposite the lugs of the timing adjuster, so the lugs engage in the slots and the switch actuation plate moves in due to its bias Towards the timing actuator. With this movement of the switch operating plate controlling the opening and closing of the switch the electrical circuit is opened or closed or a connection in the electrical Circuit switched. With the further movement the switch actuating plate from the aforementioned position, the lugs come to rest on end faces of the slots and are forced out of their engaged position in the course of the further rotary movement of the switch actuating plate. This disengages the switch actuator plate over the lugs and disengages from the timing adjuster. at this movement of the switch actuation plate returns the switch to its original position and the actuation cycle completed.

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PATENT LAWYERS ZENZ & HELBER. ESSEN 1, ALFREDSTRASSE 383 TEL .: (02141) 472087

In the conventional arrangement described above, the switch operating plate rotates in synchronism with the hour shaft of the watch and its angular speed is slow. For this reason, the switch-actuating timing of the timer relative to the set time is considerably due to play in the gear or wheel train provided between the clockwork and the switch actuating plate and the manufacturing accuracy of the individual parts, in particular due to the position and shape of the lugs and slots as well as the Precision in the manufacture of the position-determining locking or switching teeth formed on the timing setting member is influenced. For this reason, this known arrangement resulted in operation. a time delay of about 3 to 8 minutes between the set time and the time at which the switch was actually opened or closed.

The invention is therefore based on the object of a timer mechanism for a clock or the like. indicate the influence of the backlash of the gear or gear train and the manufacturing accuracy the associated components is freed as much as possible and the switch is accurate and reliable opens and closes at the specified times. The timing mechanism should ■> ·. , develop high control accuracy, which by expansion Jei known Z ^ itgebereinrichtung with a few Share should be achieved.

Based on a timing mechanism for a clock ο. like with an adjustable timer setting member, on the circumferential surface of which a time scale division is formed, a next to and coaxially with the timer setting element arranged hour shaft, one arranged on the hour shaft, in one

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PATENTANWÄLTE ZENZ & HELBER ESSEN 1, ALFREDSTRASSE 383 TEL .: (02141) 472687

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rearward moving coupling part, one end face of which facing an end face of the timer adjuster with at least one curved recess in one of the opposite end faces and at least one shoulder on the other that fits into the recess End face are formed, furthermore with a pivotable clutch actuator held in abutment on the clutch part and a switch arranged in the vicinity of the clutch actuator, its opening and closing functions are controllable by the movement of the clutch actuator, the invention proposes to solve this problem before that a connecting member made of resilient material is connected directly or indirectly to the clutch actuator is and has a hook at its free end, that a pivotable transmission component is also provided, which can be moved into engagement with the hook formed on the connecting member with one shoulder and one as a pawl formed end portion, and that a rotatable clutch control part is provided on its peripheral surface formed several latching recesses cooperating with the pawl are, the arrangement being such that the clutch control part is rotated one revolution per hour.

Exemplary embodiments of the invention are shown in the drawing. Show it:

Fig. 1 is an exploded perspective view of the essential part of an embodiment of the invention Timer mechanism; and

Fig. 2 is an exploded perspective view of the essential part of another embodiment of the timer mechanism according to the invention.

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PATENTANWÄLTE ZENZ & HELBER ESSEN 1, ALFREDSTRASSE 383 TEL .: (02141) 472687

In Fig. 1, reference numeral 1 denotes a cylindrical timer setting member which is rotatably supported on a shaft 2 is and in the end face a pair of curved recesses la are trained. On the peripheral surface of the timer adjuster 1 a time scale division Ib is plotted at ten-minute intervals. On the inner surface Ic of the annular Flange of the timer setting member 1 are formed in the drawing, not shown shift teeth, which the scale division Ib correspond and with one also not shown Lock pawl engaged. Therefore, if a graduation mark assigned to any time is replaced by manual Rotating the timer adjuster 1 is brought into alignment with a fixed hand 3, the timer adjuster 1 at the set position in semi-fixed! Condition kept. A disc-shaped dog clutch part 4 is adjacent the timer setting member 1 mounted on a shaft 5 which is synchronous with the unillustrated hour shaft of the clock rotates and is arranged coaxially with the shaft 2. The coupling part 4 is rotatably mounted on the shaft 5, but is slidable in the axial direction ^.

The dog clutch part 4 has on it the timer setting member 1 facing end face a pair of projecting lugs 4a, which in the aforementioned recesses la can intervene. A clutch actuator 6 is pivotably mounted on an axis 7 and has a ah of the end face of the coupling part 4 in contact with arm 6a. A spring 8 biases the clutch actuator clockwise before, whereby the coupling part 4 is resiliently loaded in the direction of engagement on the timer setting member 1. One on

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ZENZ Λ HELBER - ESSEN 1, ALFREDSTRASSE 383 TEL .: (02141) 472687

A connector 9 pivotably mounted on an axis 6c firmly connected to the clutch actuator 6 and is η it an arm 9a with the movable contact of a switch 10 in connection »In the connection piece 9 an elongated hole 9b is formed, into which a stationary Fuhrungszapfen.lt fits intervenes. Reference numeral 12 denotes / clutch control component denoted by six equally spaced locking recesses 12a on its circumference. The location of the rest recesses agrees with the time scale division Ib of the timer setting element, n. The clutch control component 12 sits on a shaft Ij, runs synchronously with the minute shaft of the clock (not shown) and executes a full rotation in 60 minutes »On the clutch control serving transmission component 14 is pivotally mounted on a shaft 15 and can with an end section designed as a pawl 14a in a latching recess Enclose 12a · The transmission component 14 is biased by a spring 16 in the counterclockwise direction «. A connecting component made of resilient material is connected with its one end to the connector 9 via a screw 9c and is at its free The end is designed in the form of a hook 17a which engages with a shoulder 14b of the transmission component 14 can. The connecting member 17 is preferably designed as a plate spring.

The operation of the mechanism indicated above is described below. The actuation time of the timer is set in that the desired time track'-t the Time scale division Ib by manually turning the timer setting member 1 is adjusted to the pointer 3. This time setting determines the position of the recesses la.

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PATENTANWÄLTE ZENZ & HELBER · ESSEN 1, ALFREDSTRASSE 383 · TEL.! (02141) 472687

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The projecting lugs or claws 4a of the claw coupling part 4, which rotates in the direction of the arrow together with the shaft synchronously with the hour shaft of the clock, are the recesses la of the timer setting member 1 and are a distance corresponding to 3 to 8 minutes before the set ' Time. The clutch actuator 6 is in the standby position, clockwise, about the axis 7 turn. At this time, the pawl 14a of the transmission member 14 is still standing on the peripheral surface of the clutch control member 12 in contact, and the hook 17a of the connecting member 17 engages behind the shoulder 14b of the transmission component and prevents the clutch actuator 6 from pivoting clockwise. When the locking recess 12a of the * Clutch control component 12 in the course of the further rotary movement of the minute shaft of the clock. synchronously rotating shaft however, the pawl 14a is opposite, the transmission member 14 is due to the bias of the spring 16 in the counterclockwise direction pivoted. This becomes the shoulder 14b of the transmission member 14 disengaged from the hook 17a of the link 17 can now due to the bias of the spring 8 a pivoting movement run clockwise and thereby moves the claw coupling part 4 in the engagement direction via its arm 6a, see above that the projecting lugs or claws 4a in the recesses 1a of the timer setting member 1 intervene. At the same time, the connector 9 is moved to the right. The opening and closing function of the switch 10 is controlled via the arm 9a.

After a certain time has elapsed (operating time of the timer) in this state, an expires at the protruding approach 4a.

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TENTANWÄLTE ZENZ & HELBER. ESSEN 1, ALFREDSTRASSE 383 TEL .: (02141) 472687

The ramp surface 4a 'formed on an end surface la ^{1 of} the recess la and is disengaged during the further rotary movement of the coupling part 4. As a result, the coupling part 4 is disengaged from the timer setting member 1 in accordance with its own rotational movement. Therefore, the clutch actuator 6 returns against the force of the spring 8 in the position shown. If the transmission component 14 is in the position shown at this time, the inclined surface 17a ^{1 of} the hook 17a of the connecting member 17 initially comes into contact with the shoulder 14b of the transmission component 14. Thereafter, the connecting member 17 is elastically bent in the direction of the arrow shown, and the hook 17a falls behind the shoulder 14b. As soon as the hook 17a has reached behind the shoulder 14b, all mechanical parts are again in the position shown.

As can be seen from the explanations above, the operating time becomes of the timer determined by the length of the recess la of the timer setting member 1, and the coupling part 4 completes one revolution in 12 or 24 hours. If the rotary movement of the coupling part per unit of time also is small, the movement of the dog clutch part 4 in the engaging direction, i.e., the control of the switch 10 becomes but caused by a component, namely the clutch control component, the angular velocity of which is sufficiently large. Accordingly, the opening and closing function of the switch becomes 10 executed accurately and quickly at the given time.

The further embodiment shown in FIG. 2 differs differs from that described with reference to FIG. 1

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PATENT LAWYERS ZENZ & HELBER. ESSEN 1, ALFREDSTRASSE 383 TEL .: (02141) 472087

Embodiment. That in the Pig embodiment. I. provided connecting piece 9 is omitted in the present embodiment, and the connecting member 17 is attached directly to the clutch actuator 6. The switch 10 is arranged to be taken directly from the arm 6b of the clutch actuator 6 is actuated. So much for the basic construction and mode of operation of the embodiment with those correspond to the embodiment shown in FIG. 1 in Fig. 2 with Fig. 1 corresponding reference numerals are provided. A more detailed description of the functionally identical elements the two exemplary embodiments are unnecessary.

In the aforementioned embodiments, the timing scale divisions are incorporated at 10 minute intervals; therefore the pivoting movement of the transmission component 14 takes place, i.e., the engaging and disengaging movement of the shoulder 14b and the hook 17a of the link 17 every 10 minutes. However, this time interval generally depends on the minimum time interval to which a timer is set can.

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Claims (3)

2ENZ & HELBER · ESSEN 1, ALFREDSTRASSE 383 ■ TEL .: (02141) 472687 Claims \ __ lj timer mechanism for a clock or the like «, with an adjustable timer setting member, on the circumferential surface of which a time scale division is formed, an hour shaft arranged next to and coaxially with the timer setting member, a clutch part arranged on the hour shaft, movable in the engagement direction, one end face of which is an end face of the timer setting member is opposite, wherein at least one curved recess is formed in one of the opposite end faces and at least one extension fitting into the recess is formed on the other end face, furthermore with a pivotable coupling actuating member held in contact with the coupling part and a switch arranged in the vicinity of the coupling actuating member , whose opening and closing functions can be controlled by the movement of the clutch actuator, characterized in that a connecting member (17) made of resilient material directly or indirectly with the Ku Pplungsbetaktglied (6) is connected and at its free end has a hook (17a) that further a pivotable transmission member (14) is provided, which can be set with a shoulder (14b) "" it the hook formed on the connecting member and a as a pawl (14a) designed end portion, and that a rotatable clutch control component (12) is provided, on the circumferential surface of a plurality of latching recesses (12a) cooperating with the pawl (14a) are formed, the arrangement being such that the clutch control component around a Revolutions per hour rotated: 309830 / 09U PATENT LAWYERS ZENZ & HELBER. ESSEN 1, ALFREDSTRASSE 383 TEL .: (02Ul) 472687 2. timer mechanism according to claim 1, characterized in that the time scale divisions (Ib) in ten-minute intervals and six Rästausnehmungen (12a) in the same
Distance are provided. 3. timer mechanism according to claim 1 or 2, characterized in that the connecting member (17) is designed as a plate spring and with one on the shoulder (14b)
coming to the plant inclined run-up surface (I7a ^f ) is provided. 30983Ö / Ö9U