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Patent Searching and Data


Title:
OVERHEAD CONVEYANCE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/235029
Kind Code:
A1
Abstract:
This overhead conveyance system comprises: an overhead conveyance vehicle having a traveling section which travels on rails at least partially arranged in a grid pattern, and a body section which is suspended from the traveling section and whereby an article is held below the rails; and a control unit for controlling operation of the overhead conveyance vehicle. The traveling section includes traveling wheels provided to each of the four corners of the body section so as to enable steering. The rails include a plurality of linear rails and a plurality of intersection rails. The linear rails and the intersection rails are arranged in an alternating manner with space therebetween in each of a first direction and a second direction perpendicular to the first direction. The control unit performs steering control for steering the traveling wheels while each of the four traveling wheels is positioned on a different intersection rail. The steering center of the traveling wheels in the steering control is provided so as to be positioned further inward in the body section than the ground contact points of the traveling wheels on the intersection rails.

Inventors:
ITO YASUHISA (JP)
Application Number:
PCT/JP2021/005480
Publication Date:
November 25, 2021
Filing Date:
February 15, 2021
Export Citation:
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Assignee:
MURATA MACHINERY LTD (JP)
International Classes:
B61B3/02; B61B13/00; B65G1/00
Domestic Patent References:
WO2018037762A12018-03-01
Foreign References:
JP2012040961A2012-03-01
JPH08324772A1996-12-10
US20130061772A12013-03-14
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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