Control device for an industrial truck
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 4, 2001
Issued Date -
N/A
app pub date -
Jul 17, 2000
filing date -
Jul 30, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A control device is provided for an industrial truck, in particular the towbar of a towbar-guided industrial truck, having a circuit element to generate a multi-stage electrical control signal. The invention teaches that the switching element has at least one contact membrane (6) which can be electrically connected by a pressure force exerted on the contact membrane (6) with at least one of a plurality of contact points (2) that correspond to the contact membrane (6). The contact points (2) are connected by electrical resistors (R1-8). The electrical resistors (R1-8) are preferably connected in series, whereby the connecting line between each two resistors is connected to a contact point (2). There are two sliders (8a, b), each of which exerts a pressure force on the contact membrane (6), as a result of which a contact point (2) can be connected to a contact area (3).
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