Wheeled moving body and grounding condition monitoring apparatus for the same
OwnerToru Nakagawa, Toshikazu Numaguchi +1inventors
InventorsToru Nakagawa, Toshikazu Numaguchi, Hideya Maki
Life of this patent
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Abstract
To provide a wheeled moving body incorporating electrostatic protection measures and capable of constantly monitoring its grounding condition, and a grounding condition monitoring system for the same. An electrostatic conductive mat 14 on a cart 10 is connected to an electrostatic conductive wheel 12 for grounding, and one end of an ohm meter (or volt meter) 18 mounted on the cart 10 is connected to the electrostatic conductive mat 14, while the other end is grounded by connecting it to a conductive wheel 24 insulated from the cart 10 by an insulating plate 13.
Claims6
A wheeled moving body comprising:
- an electrostatic conductive mat placed on said moving body;
- first grounding means, whose entirety is attached to said moving body so as to move with said moving body, electrically connected to said electrostatic conductive mat, and adapted to be grounded at a first contact point on a surface over which said wheeled moving body moves;
- second grounding means, whose entirety is attached to said moving body so as to move with said moving body, electrically insulated from said electrostatic conductive mat, and adapted to be grounded at a second contact point on said surface over which said wheeled moving body moves, said second contact point being spaced apart from said first contact point;
- and
- grounding condition detecting means, connected between said electrostatic conductive mat and said second grounding means, for continuously detecting a grounding condition of said electrostatic conductive mat.
A grounding condition monitoring apparatus for a wheeled moving body, comprising:
- an electrostatic conductive mat placed on said moving body;
- first grounding means, whose entirety is attached to said moving body so as to be able to move with said moving body, electrically connected to said electrostatic conductive mat, and adapted to be grounded at a first contact point on a surface over which said wheeled moving body moves;
- second grounding means, whose entirety is attached to said moving body so as to be able to move with said moving body, electrically insulated from said electrostatic conductive mat, and adapted to be grounded at a second contact point on said surface over which said wheeled moving body moves, said second contact point being spaced apart from said first contact point;
- grounding condition detecting means, connected between said electrostatic conductive mat and said second grounding means, for continuously detecting a grounding condition of said electrostatic conductive mat;
- and
- alarm output means for outputting an alarm indicating abnormality in said grounding condition based on a detection result supplied from said grounding condition detecting means.
Dependencies are inferred from the claim text.