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OVERHEAD TRAVELING AND TRANSPORTING APPARATUS

  • US 20080128374A1
  • Filed: 11/29/2007
  • Published: 06/05/2008
  • Est. Priority Date: 11/30/2006
  • Status: Abandoned Application
First Claim
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1. An overhead traveling and transporting system comprising:

  • a track installed on or near a ceiling;

    a transporting carriage for traveling along and being guided by said track, having (i) a gripping mechanism adapted to grip a transported object, (ii) a hoisting mechanism adapted to move down said gripping mechanism to a load port for the transported object, and (iii) a sensor for emitting a light beam within a pseudo plane surface, which is perpendicular and in parallel with a traveling direction of said transporting carriage, and for receiving a reflection light of the emitted light beam;

    a monitoring device for monitoring an obstacle existing in a direction of emission of the emitted light beam, on the basis of the reflection light received by said sensor; and

    a selecting device for (i) establishing one condition that the obstacle existing forward in the traveling direction is monitored by said monitoring device if said transporting carriage is traveling and (ii) establishing another condition that the obstacle existing downward from said transporting carriage is monitored by said monitoring device if said gripping mechanism is moved down, by selecting the direction of emission and/or selecting an area of monitoring by said monitoring device.

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