DE1943071A1 - Function key with protective tube contacts using permanent magnets - Google Patents

Description

VEB Qeldrogerftfeewerk 6omacM / iBt4. 1943071

Function key with protective tube contacts using Clay permanent magnets

The invention relates to a function key with protective tube contacts using permanent magnets, In particular for message and data processing equipment and letter distribution systems.

In the communications and control technology, protective tube contacts * ima ^ e are more widespread, which are particularly characterized by being able to protect themselves against TJ & gebungainflttsse, such as dust, humidity, corrosive gases, etc. The further advantages of these protective tube contacts are the high switching reliability, even with very infrequent switching, in the short switching sides.

These Schu-fc & Rohxkoatakte consist of two in one Glass tubes melted tongues, which consist of conductive E & terial · The land of these tongues overlap inside the tube with little Distance, the protective tube contact turns into a magnetic Brought field, arises at the contact air gap between to the customers of their tongues a force by which de? Contact is closed when the force is greater than the spring force of the two tongues · The protective tube contacts can be activated by an electromagnetic field or by the field of a permanent magnet These are used by permanent magnets actuated protective tube contacts for buttons with which contacts are closed or opened. For example, keyboards are for mailing systems as well Data processing devices preferably equipped with such!

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ORIGINAL BATHROOM

This results in a number of ski areas for practical duration. ? This is "particularly ÜSV case when fast sur administration should go""where di © £ chuts" · Rolu contacts parallel to the vertical ^ aetesisefcaft angeord "· - net are · Ba approaches dia Anac & Lusso and ex ⁵ Sontaktfedossi opposite to dea Linden of the GlasrSiirofesa, "the connection for the upper contact spring with built-in buttons is just below the card plate · Bsi the closely spaced Sastsa doö Sastenfsl" · the Aasc & lttsse the obsrsn cont & ktf are very heavy or generally not for the wiring -su " »Common. ·

The invention be-3ü © 3feij the length listed! au vesmeidejft and function keys using the ¹ well-known sagnetisch bet & tigbareki GohuiisröZukcmi ^ kise »to which according to the Ikontakfcbestüküng on the OJastenscMft» te permanent note vertically pre-covered «earth _t to create ₉ the versatile applicable '

Per invention lies * ö the task suggests "the Σίϊίΐι! Pastes" Shaft vertically or parallel tightened 3i protective tube contacts to be trained in such a way that the production of the puncture button is uncomplicated

_F Erfinduagsgeifläß the In ^ is ibe achieved in that there is provided "Aung in the function key öingssetstea iacliutisrohrkontaktes a freestyle for obexen circular-shaped contact wire, so that the contact only aocli to below, the Gehäusedee & els the function key ranges · An AEM Geku ^ atenv Rundlcontöktdraht is an Ecarsaktstiiek, which is aue StabilitStfsgrün dee Schutarohrkontaktefs vorsugovjeise rectangular shape in the cup base, welded and led out in the corresponding Haster on the housing floor »the for solder or circuit board connection in front.

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is seen, whereby the welded connection is made before the protective tube contacts are installed in the Taetengehäufie The protective tube contacts can be plugged directly into the specially created key base and are each exchangeable as required

The recesses provided in the key shaft are for Actuation of the protective tube contacts Magnets of various shapes and sizes provided

The invention is illustrated below using an exemplary embodiment are explained in more detail · Show in the accompanying drawing

Fig. 1s, the front view of the function button partially on average,

FIG. 2t shows the top view of the function stator partially in section,

Fig. 31 shows the protective tube contact with a welded-on contact piece,

41 shows the key stick with round permanent magnets,

Fig. 51 the key shaft with rectangular permanent magnets

As Fig. 1 shows, the key base 2 is inserted into two housing half-shells of the housing 1, which serves to accommodate the protective tube contacts 6 and a compression spring 4. The key shaft 3 is provided with recesses into which the permanent magnets of various cross-sectional shapes, around 7, according to FIG 4 _ff square 8, as shown in FIG. 2 and rectangular 9, as shown in FIG. 5, are exchangeably attached. The upper and lower limits of the button shaft 3 are

009822/1350

ORIGINAL

times in the key base 2 by a specially provided stop in housing 1 and on the other hand on the top of the housing! 10 determines * the permanent magnets inserted in the key shaft 3 7 or S or 9 have the task of closing or opening the contact «

A permanent magnet is required to operate two contacts provided «, in the pressed state the fast 11 Jind thus the protective tube contact © 6 is closed Permanent magnets 7 or 8 or 9 of different cross-sectional shapes arranged vertically in pairs and these in turn are vertical to the protective tube contacts 6, taking into account the parallelism between protective tube contact tongues and permanent magnets «

To hold the protective tube contacts 6 are provided in the key base _v 2 blind holes

For the support and stability of the predominantly in Housing 1 exposing protective tube contacts 6 carries that with the shortened upper round contact wire of the protective tube contact 6 welded rectangular shaped contact piece 5 at.

009822/1350

Qt-M

Claims (1)

^ ■ «Batent claims * [Function key with protective tube contacts using on permanent magnets »in particular for information and data processing devices as well as letter distribution layers, characterized in that permanent magnets of different cross-sections (7 or 8 or 9) are interchangeably attached in a (paste shaft (3), which are placed on the vertically or parallel key shaft (3) arranged protective tube - 'contacts (6) act »and the protective tube contacts (6) in an exchangeable key base (2) fixed, but eleven « "detachable connection are attached» 2 »Function key according to claim 1» characterized in that that the protective tube contacts (6) shortened at the upper ends and attached to these contact pieces with a special shape and cross-section, preferably rectangular shaped contact pieces (5) are welded to the £ Ö * t- and PCB connection serve " 3. Puncture button according to claim 1 and 2, characterized in that the permanent magnets of different cross-sections (7 or 8 or 9) are clamped and interchangeably fastened in the button shaft (3) and parallel to the contacts a.ex protective tube contacts (6 ) stand·