US 12,264,494 B2
Conveying device
Yusuke Sugahara, Tokyo (JP); Yukio Takeda, Tokyo (JP); Daisuke Matsuura, Tokyo (JP); Takahiro Ishii, Tokyo (JP); Takeshi Matsumoto, Tokyo (JP); Masayuki Kakio, Tokyo (JP); and Daisuke Nakazawa, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP); and TOKYO INSTITUTE OF TECHNOLOGY, Tokyo (JP)
Appl. No. 17/621,239
Filed by Mitsubishi Electric Corporation, Tokyo (JP); and Tokyo Institute of Technology, Tokyo (JP)
PCT Filed Aug. 27, 2019, PCT No. PCT/JP2019/033579
§ 371(c)(1), (2) Date Dec. 21, 2021,
PCT Pub. No. WO2021/038731, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0364380 A1, Nov. 17, 2022
Int. Cl. E04H 6/18 (2006.01); B65G 1/04 (2006.01)
CPC E04H 6/18 (2013.01) [B65G 1/0492 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A conveying device comprising:
a loading-weight support that supports a load of an object to be conveyed and moves up and down in a shaft to convey the object to be conveyed; and
a first driving device that is provided on the loading-weight support and lifts and lowers the loading-weight support along a first rail extending in a lifting and lowering direction of the loading-weight support in the shaft, wherein
the first driving device includes:
a first wheel unit including:
a first wheel in contact with a guide surface extending in a longitudinal direction of the first rail;
a sub-wheel that is arranged side by side with the first wheel in the lifting and lowering direction and is in contact with the guide surface; and
a wheel coupling support that rotatably supports the first wheel, the first wheel unit driving to rotate the first wheel to lift and lower the loading-weight support; and
a first coupling link including:
a first connecting joint connected to the first wheel unit; and
a second connecting joint rotatably supported by the loading-weight support, wherein the second connecting joint is arranged in a position further apart from the guide surface than the first connecting joint, and
the second connecting joint is arranged above the first connecting joint,
wherein the first coupling link is arranged such that a tilt angle from a horizontal plane of a straight line connecting the first connecting joint and the second connecting joint is smaller than 45 degrees, and
wherein the first wheel unit is rotatably connected to the first connecting joint of the first coupling link, independently of a second wheel which contacts with the first rail at a position on a side of the first rail, and the position is on an opposite side of the first rail where the first wheel contacts, in a state that the wheel coupling support rotatably supports the first wheel and the sub-wheel.