US 12,077,377 B2
Transport vehicle
Masashige Iwata, Hinocho (JP); Kazunari Kimura, Hinocho (JP); and Hiroyoshi Murata, Hinocho (JP)
Assigned to Daifuku Co., Ltd., Osaka (JP)
Filed by Daifuku Co., Ltd., Osaka (JP)
Filed on May 12, 2022, as Appl. No. 17/742,460.
Claims priority of application No. 2021-081806 (JP), filed on May 13, 2021.
Prior Publication US 2022/0363475 A1, Nov. 17, 2022
Int. Cl. B65G 1/04 (2006.01); B60P 1/64 (2006.01)
CPC B65G 1/0407 (2013.01) [B60P 1/6418 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A transport vehicle for transporting an article in a supported state and transferring the article to a transfer target location, comprising:
a travel body;
a first functional section and a second functional section configured to support and transfer the article, a function of the first functional section being different from a function of the second functional section; and
a first drive source configured to drive the first functional section and a second drive source configured to drive the second functional section,
wherein:
the travel body comprises:
a travel body section;
a pair of drive wheels supported by the travel body section; and
a wheel drive source configured to drive the pair of drive wheels,
the pair of drive wheels are drivable by the wheel drive source to rotate at identical speeds or different speeds to each other,
the pair of drive wheels are disposed in a middle region of the travel body section in a length direction of a body of the transport vehicle that is a direction in which the travel body travels, and are separated from each other in a width direction of the body that is a direction intersecting the length direction of the body in top-down view extending vertically,
the first drive source is disposed, in top-down view, on a first side in the length direction of the body relative to a width direction reference line and on a first side in the width direction of the body relative to a length direction reference line, the first side in the length direction of the body is one side in the length direction of the body, and the first side in the width direction of the body is one side in the width direction of the body, and
the second drive source is disposed, in top-down view, on a second side in the length direction of the body relative to the width direction reference line and on a second side in the width direction of the body relative to the length direction reference line, the second side in the length direction of the body is another side in the length direction of the body, and the second side in the width direction of the body is another side in the width direction of the body,
the width direction reference line is a virtual line extending in the width direction of the body to connect the pair of drive wheels in top-down view, and the length direction reference line is a virtual line intersecting the width direction reference line in top-down view at an intermediate position between the pair of drive wheels in the width direction of the body and extending in the length direction of the body.