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EP0210973A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Push button key board

Assignee: Siemens AG Oesterreich
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Filing: 1986-05-23
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Granted: —
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Expires: 2006-05-23
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Abstract

Abstract Translated from German Tastwahlblock, der gegen Eindringen von Feuchtigkeit geschützt ist. Eine die Gegenkräfte für die im Tastengehäuse (2) geführten Tastenknöpfe (1, 1', 1'') liefernde Schaltmatte (3) aus elastischem Material wird zusätzlich auch zur Abdichtung herangezogen. Zu diesem Zweck sind alle Berohrungskanten, mit denen das Tastengehäuse (2) auf der Schaltmatte (3) aufsitzt, mit in einer Ebene liegenden Dichtrippen (8) besetzt. Die Entlüftung der von der Schaltmatte (3) umschlossenen Hohlräume erfolgt durch Öffnungen (11, 12) in der Schaltfolie (5) und der Gegendruckplatte (7) ins Innere des Tastengehäuses (2). Keypad that is protected against moisture ingress. A switching mat (3) made of elastic material, which provides the opposing forces for the button buttons (1, 1 ', 1'') guided in the button housing (2), is also used for sealing. For this purpose, all the edges of the tube with which the button housing (2) sits on the switch mat (3) are fitted with sealing ribs (8) lying in one plane. The cavities enclosed by the switch mat (3) are vented through openings (11, 12) in the switch film (5) and the counterpressure plate (7) into the interior of the button housing (2).

Inventors

  • 👤 Ing. Brabec Reinhard
  • 👤 Karl Formanek

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 20:06
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/702; H01H2213/00; H01H2213/002; H01H2213/01; H01H2213/014; H01H2221/00; H01H2221/05; H01H2223/00; H01H2223/002; H01H2223/034

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3676607A Cited
US3995126A Cited
FR2330074A1 Cited
DE3407380A1 Cited
GB2144271A Cited

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