DE1994387U - ELECTRIC WRISTWATCH. - Google Patents

Description

DR. RUDOLF BAUER DIPL.-ING. HELMUT HUBBUCH

PATENT LAWYERS

753 Pforzheim. 22 »4" 1968 II / Va

WESTERN 3! (AM LEOPOLDPLATZ) TEL .: (07231) 2429O

3? Irma Pforzheimer clockworks "PU ¥" Inn · Rudolf ¥ ehner ₃ Pforzheim

"Electric wrist watch"

The innovation relates to an electronic wristwatch Making contact for the electromagnetic balance vibration system, wherein a contact part and insulating stone cooperates with a contact and Bämfpungsfeder. ■ .. ■

In electrically operated _s ühren particularly wristwatches, it is known to equip the unrest with a coil which is -connected by a controlled by the balance oscillations contact system periodically to a power source ,, This agitation vibrates at its coil in a magnetic field and ER-

are holding this contact controlled electrical pulses _s making their vibrations maintained, "It thus serves in conjunction with the spiral in a conventional manner as! regulator and at the same time as an engine for the clock"

In the known electric drive systems for wristwatches, the coils either receive an electrical impulse ₅ only with every double oscillation or with every half oscillation the clock, such as bumps or bumps occur, since otherwise plumbing impulses occur, so the contact can be made too early or too late or opening and closing sparks can arise between the contact and the contact spring, which destroy the contact prematurely. Finally, striations between the contact spring and the insulating stone on the contact ₉ can also take place after or before contact is made, which disturbs the isochronism of the balance vibrations or also stops the restlessness.

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There are now known _s reach different methods to an attenuation of the contact spring oscillations. In the case of the electric wristwatch according to the price increase, this takes place in that the shortened damping spring is arranged in the contact plate at an acute angle to the contact spring _{3, in} particular, embedded and with its end encompasses the contact spring in the first half and is slightly bent by this by one-sided contact, wherein the damping spring engages around the contact spring frame end by means of this and due to bending stress is applied on one side _s while the remaining frame portion at an acute EinhangewLnkel with grease is filled.

As a result, both with normal deflection of the contact spring as well as when deflected by external influences, more favorable conditions are achieved than with the known damping springs, as extensive tests have shown »

After another thought the innovation takes place on the Side of the balance wheel contact is a waler balance contact pin with transversely inserted insulating stone protruding on both sides, which is used with the bent-back contact spring end

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interacts, whereby the correct contact time and the Contact duration can be set properly »

An embodiment of the innovation is then in the drawing shown, namely show:

F i g. 1 is a plan view of the new embodiment and F i g. 2 shows the side view of FIG. 1.

In the illustrated embodiment, as can be seen from the drawing, a double contact is made for each double oscillation, ie, a pulse is generated for each half oscillation. The contact is made via the contact spring 1 with the folded end 2 on the oval-shaped contact pin 3, which is equipped with a transversely inserted insulating stone 4 and sits on the balance 5. Lifting of the contact spring 1 is _s as can be seen from the drawing, in the contact plate 6 the shortened damping spring 7 is inserted at an acute angle to the former (1).

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ser (1) through, one-sided contact at 9 slightly bent. Due to the bending stress, the one-sided abutment 9 ₃ takes place while the rest of the frame part 8 is filled with fat at the acute angle of attachment. As a result, b © i of the operational deflection and, in the case of deflections due to external influences, favorable damping conditions are achieved for proper function and contacting. correct setting of the contact end, the contact plate 6 is also equipped with a slot fastening 11, as shown in Pig. 1 becomes apparent.

Claims (4)

241614 * 28.4J8 ψ DR. RUDOLF BAUER DIPL.-ING. HELMUT HUBBUCH * PATENTANWÄLTE 753 PFORZHEIM, ^ -c- ^ WESTLICHE 31 (AM LEOPOLDPLATZ) TEL .: (07231) 24290 Protection claims: 1. Electric wristwatch with Eontaktgabe for the electromagnetic balance oscillation systemj where an Eontaktteil and insulating stone cooperates with an Eontakt- nnd damping spring, characterized in that the shortened damping in the Eontaktplatte arranged at an acute angle to the Eontaktfeder ₉ insbes »is embedded and with the item end the Eontaktfeder in the first half encompasses and is slightly bent by this one-sided contact _o 2. Electric wristwatch according to claim 1, characterized j that the damping spring by means of the frame end the Eontaktfeder embraces and this one-sided due to bending stress while the rest of the frame part is filled with jet at the acute angle of attachment » 3. Electric wristwatch, in particular »according to claim 1, characterized marked that an oval "balance wheel contact pin with transversely inserted insulating stone protruding on both sides the one with the bent-back Eontakt spring end cooperates " 4. Electric wristwatch according to one of the preceding Claims, characterized in that the contact plate with the holder for Eontakt and damping spring adjustable by means of elongated hole fastening for the Eontakt end is.