Conductor detecting device
AssigneeKomatsu Ltd.
InventorYoshiharu Sato
Life of this patent
Estimating the term…
Abstract
A device capable of reducing an erroneous operation with a simple configuration in which, when two or more conductors M1, M2, M3 (three of them in FIG. 1) are attracted by three or more magnets 1a, 1b, 1c, 1d (four of them in FIG. 1), the conductors M1, M2, M3 are electrically connected between the respective magnets to bring a series circuit 3 into conduction that causes an electric current Is to flow, whereby an electric signal (voltage) Vs(=V) indicating the detection of the conductors M1, M2, M3 is output.
Claims10
A conductor detecting device which detects conductors by attracting the conductors to a plurality of magnets, wherein:
- three or more magnets are disposed with spaces between the respective magnets;
- and
- one of the three or more magnets is connected to a negative terminal of a power source and another one of the three or more magnets is connected to a positive terminal of the power source, whereby a plurality of spaces defined between each of the three or more magnets are made part of a series circuit;
- and
- the series circuit is brought into electrical conduction when the conductors are attracted to all of the spaces between each of the three or more magnets and outputs a warning signal.
A conductor detecting device for detecting conductors by attracting the conductors to a plurality of magnets, which comprises:
- a series circuit including three or more magnets arranged with nonconductive spaces between the respective magnets;
- the conductors being attracted to the three or more magnets and filling all the nonconductive spaces between the respective magnets for electrically connected the three or more magnets together to complete the series circuit, and
- the series circuit outputting an electric signal when the series circuit is completed.
Dependencies are inferred from the claim text.