US 12,275,583 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. 17/742,443.
Claims priority of application No. 2021-081805 (JP), filed on May 13, 2021.
Prior Publication US 2022/0363476 A1, Nov. 17, 2022
Int. Cl. B65G 1/04 (2006.01)
CPC B65G 1/0428 (2013.01) [B65G 1/0435 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A transport vehicle for transporting an article, comprising:
a travel body configured to travel on a travel surface,
wherein the travel body comprises:
a travel body section;
a drive wheel;
a wheel drive source configured to drive the drive wheel;
a support arm swingable relative to the travel body section and supporting the drive wheel and the wheel drive source;
a swing support attached to the travel body section and supporting a swing fulcrum of the support arm; and
an elastic unit,
wherein the swing support is detachably attached to the travel body section, and
wherein the elastic unit comprises:
an abutting section configured to abut, from a second side in the swing direction, a target spot located away from the swing fulcrum of the support arm; and
an elastic section configured to bias the abutting section abutting the support arm toward a first side in the swing direction,
wherein the first side is a side on which the drive wheel is directed toward the travel surface in a swing direction of the support arm,
wherein the second side is a side opposite to the first side,
wherein the abutting section is not coupled to the target spot, and
wherein the swing support supports the swing fulcrum in such a manner that the support arm is swingable toward the first side to a position where the target spot is separate from the abutting section.