Global Patent Index - EP 0024620 A1

EP 0024620 A1 19810311 - Luminous-indication key for key boards in office and teleprinting machines.

Title (en)

Luminous-indication key for key boards in office and teleprinting machines.

Title (de)

Taste mit Leuchtanzeige für Tastaturen in Büro- und Fernschreibmaschinen.

Title (fr)

Touche lumineuse pour claviers de machines de bureau et téléscripteurs.

Publication

EP 0024620 A1 19810311 (DE)

Application

EP 80104741 A 19800811

Priority

DE 2933983 A 19790822

Abstract (en)

[origin: US4365903A] A lockable key for use on electronic keyboards in office typewriters and teleprinters has a receptacle at an upper portion thereof for receiving a light emitting diode which is mounted in a small circuit board which can be snapped into the upper portion of the key and which is supplied current via flexible interlaced wires. A lower portion of the key has a guide element which cooperates with a guide pin carried on a side of the key base for retaining the upper portion of the key in a depressed state after a first actuation thereof, and for allowing return of the upper portion of the key to the original position after a successive actuation thereof.

Abstract (de)

Leuchttaste für elektronische Tastaturen in Büro- und Fernschreibmaschinen mit einer seitlich im Tastenknopf angeordneten Leuchtdiode (5), die über eine in den Tastenknopf (1), z.B. eingesprengte kleine Leiterplatte (4) und flexible Stromzuführungskabel (6) elektrisch anschließbar ist; ein am Tastenschieber angeformtes Führungsteil (10) bildet zusammen mit einem Kulissenhebel (8) eine einfache mechanische Rasteinrichtung.

IPC 1-7

H01H 9/16; H01H 13/56; B41J 5/12

IPC 8 full level

G06F 3/02 (2006.01); B41J 5/12 (2006.01); H01H 13/02 (2006.01); H01H 13/56 (2006.01); H04L 17/04 (2006.01)

CPC (source: EP US)

B41J 5/12 (2013.01 - EP US); H01H 13/023 (2013.01 - EP US); H01H 13/562 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

BE CH FR GB IT NL SE

DOCDB simple family (publication)

EP 0024620 A1 19810311; EP 0024620 B1 19830914; BR 8005315 A 19810304; DE 2933983 A1 19810326; DE 2933983 C2 19840322; DK 360180 A 19810223; JP S5632627 A 19810402; MX 148453 A 19830422; PT 71723 A 19800901; PT 71723 B 19810629; US 4365903 A 19821228; ZA 805154 B 19810826

DOCDB simple family (application)

EP 80104741 A 19800811; BR 8005315 A 19800821; DE 2933983 A 19790822; DK 360180 A 19800821; JP 11576680 A 19800822; MX 18360380 A 19800820; PT 7172380 A 19800821; US 17954780 A 19800819; ZA 805154 A 19800821