US 12,030,759 B2
Stacker crane
Jun Sai, Ise (JP); and Kazuhiro Ishikawa, Inuyama (JP)
Assigned to MURATA MACHINERY, LTD., Kyoto (JP)
Appl. No. 17/778,615
Filed by MURATA MACHINERY, LTD., Kyoto (JP)
PCT Filed Oct. 2, 2020, PCT No. PCT/JP2020/037613
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2021/106374, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 2019-212415 (JP), filed on Nov. 25, 2019.
Prior Publication US 2023/0002206 A1, Jan. 5, 2023
Int. Cl. B66F 9/07 (2006.01); B65G 1/04 (2006.01); H01L 21/677 (2006.01)
CPC B66F 9/07 (2013.01) [B65G 1/0407 (2013.01); B65G 2249/02 (2013.01); H01L 21/67766 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A stacker crane, comprising:
a mast including an elevation surface defining portion including an elevation surface extending in a first direction in which an elevation portion moves up and down and in a second direction perpendicular or substantially perpendicular to the first direction and a pair of side surface portions extending in a third direction perpendicular or substantially perpendicular to the first direction and the second direction from both edges of the elevation surface defining portion in the second direction toward an opposite side to a side at which the elevation portion is located; wherein
the pair of side surface portions are structured such that a cover to cover an elevation area of the elevation portion is integrally attachable to the pair of side surface portions; and
the mast includes:
a reinforcement portion between the pair of side surface portions in the second direction, extending in the third direction from the elevation surface defining portion toward the opposite side to the side at which the elevation portion is located, and having a higher stiffness than that of the pair of side surface portions; and
an adjuster located to provide a clearance with respect to the elevation surface defining portion in the third direction, the adjuster being capable of extending in the second direction, and provided so that both edges thereof contact with the reinforcement portion and the pair of side surface portions.