Mechanical switch actuator for adjusting spindle - has hysteresis for use in positioning in variable display drive

The switch actuator consists of a display band wound on a reel and moved past a display window under the control of a drive mechanism on to a similar reel beyond the window. The drive to this is via a chain and turns an adjusting spindle via suitable gearing. The switch actuator is mounted on the ad...

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Bibliographic Details
Main Author WEISSKOPF,ERNST
Format Patent
LanguageEnglish
German
Published 20.01.1977
Subjects
ADVERTISING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
LABELS OR NAME-PLATES
PHYSICS
SEALS
SIGNALLING
SIGNS
TRAFFIC CONTROL SYSTEMS
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Summary:The switch actuator consists of a display band wound on a reel and moved past a display window under the control of a drive mechanism on to a similar reel beyond the window. The drive to this is via a chain and turns an adjusting spindle via suitable gearing. The switch actuator is mounted on the adjusting spindle. The actuator consists of an outer spacing (30) through which the spindle passes via threaded holes. An inner element (28) is mounted on an axis (29) perpendicular to the spindle so that it can move angularly about this between two positions defined by adjustable end stops. A guide (50) prevents this arrangement turning with the spindle. Th inner element (28) has a shaped front end (37) which is used as the switch.
Bibliography:Application Number: DE19752529703