US 11,987,448 B2
Article transport vehicle
Kazuharu Yoshinaga, Hinocho (JP); and Takashi Akiyama, Hinocho (JP)
Assigned to Daifuku Co., Ltd., Osaka (JP)
Filed by Daifuku Co., Ltd., Osaka (JP)
Filed on Sep. 2, 2022, as Appl. No. 17/902,422.
Claims priority of application No. 2021-143926 (JP), filed on Sep. 3, 2021.
Prior Publication US 2023/0070238 A1, Mar. 9, 2023
Int. Cl. B60P 1/28 (2006.01); B60L 50/60 (2019.01); B62D 63/02 (2006.01); B65G 17/12 (2006.01)
CPC B65G 17/12 (2013.01) [B60L 50/60 (2019.02); B60P 1/283 (2013.01); B62D 63/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An article transport vehicle configured to transport an article, comprising:
a vehicle body frame;
a wheel supported in such a manner as to be rotatable relative to the vehicle body frame;
a wheel drive source configured to drive the wheel;
a power storage unit comprising a power storage body configured to supply power to the wheel drive source and a holding member configured to hold the power storage body; and
a vehicle body cover attached to the vehicle body frame and covering the wheel drive source and the power storage unit,
wherein the vehicle body frame comprises:
a bottom surface portion on which the power storage unit is placed; and
a first rib protruding from the bottom surface portion toward an upper side and extending along a first direction when viewed in an up-down direction,
the vehicle body cover comprises:
a top surface portion covering the power storage unit from the upper side; and
a second rib protruding from the top surface portion toward a lower side and extending along a second direction that intersects the first direction when viewed in the up-down direction,
the holding member comprises:
a lower frame portion covering a lower surface of the power storage body;
an upper frame portion covering an upper surface of the power storage body; and
a joint portion joining the upper frame portion and the lower frame portion,
the lower frame portion includes a first recessed groove portion recessed from a lower end surface of the lower frame portion toward the upper side and extending along the first direction when viewed in the up-down direction,
the upper frame portion includes a second recessed groove portion recessed from an upper end surface of the upper frame portion toward the lower side and extending along the second direction when viewed in the up-down direction, and
the power storage unit is sandwiched between the bottom surface portion of the vehicle body frame and the top surface portion of the vehicle body cover in the up-down direction while the first recessed groove portion is engaged with the first rib and the second recessed groove portion is engaged with the second rib.