OVERHEAD TRAVELING VEHICLE SYSTEM AND TRANSFER CONTROL METHOD FOR OVERHEAD TRAVELING VEHICLE SYSTEM

Title:

OVERHEAD TRAVELING VEHICLE SYSTEM AND TRANSFER CONTROL METHOD FOR OVERHEAD TRAVELING VEHICLE SYSTEM

Document Type and Number:

WIPO Patent Application WO/2014/017221

Kind Code:

A1

Abstract:

In the present invention, an overhead traveling vehicle (4) is configured so as to not erroneously detect the track (10) or the like of a local cart (8) as an obstacle. The overhead traveling vehicle (4) is provided with a hoist (22) and a first sensor (38) that monitors obstacles that are below said sensor. The local cart (8) is provided with a hoist (27) and travels along the track (10). A buffer (12) is suspended from the track (10) by means of a downward-facing vertical pole (32). The buffer (12) member is not provided to the area directly above the loading ports (16, 17). A second sensor (36) for monitoring obstructions in the vicinity of the loading ports (16, 17) and in a pathway-side area that is opposite a processing device (13) is provided to the track (10), and transmits an obstruction detection signal to the overhead traveling vehicle (4) and the local cart (8). Upon receiving an obstruction detection signal from the second sensor (36), the overhead traveling vehicle (4) and the local cart (8) stop the hoists (22, 27) and the overhead traveling vehicle (4) does not use the first sensor (38) to monitor obstructions in the pathway-side area.

Inventors:

OTA TATSUJI (JP)

Application Number:

PCT/JP2013/066700

Publication Date:

January 30, 2014

Filing Date:

June 18, 2013

Export Citation:

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Assignee:

MURATA MACHINERY LTD (JP)

International Classes:

B65G1/04

Foreign References:

JP2012111635A	2012-06-14
JP2006298567A	2006-11-02
JP2009029529A	2009-02-12
JP2005294614A	2005-10-20
JP2012111635A	2012-06-14

Other References: