Title:
GUIDE MECHANISM OF LIFTING DEVICE
Document Type and Number:
Japanese Patent JP2020011835
Kind Code:
A
Abstract:
To provide a guide mechanism of a lifting device capable of appropriately guiding a guide roller while being brought into contact with a support column even when a contact portion between the support column and the guide roller is abraded.SOLUTION: A roller unit 23 supporting a side surface of a mast 16 includes a roller attachment member 24 that is detachably provided on an outside surface of a mast guide 21 through which the mast 16 penetrates. In the roller attachment member 24, a bearing member 25 is supported to freely approach or separate from the side surface of the mast 16. Guide rollers 26, 26 are rotatably supported by shaft parts 33, 33 of the bearing member 25. A part of each guide roller 26 faces inside from an opening 21a formed in the mast guide 21 so as to contact with a rail part 16a of the mast 16. The guide roller 26 is brought into contact with the rail part 16a by the energizing force of compression coil springs 34, 35, 35 that is elastically interposed between the bearing member 25 and the roller attachment member 24.SELECTED DRAWING: Figure 4
Inventors:
GOTO TAKUMI
Application Number:
JP2018136208A
Publication Date:
January 23, 2020
Filing Date:
July 19, 2018
Export Citation:
Assignee:
DAIDO STEEL CO LTD
International Classes:
B66C17/04
Foreign References:
| US20080203047A1 | 2008-08-28 |
Attorney, Agent or Firm:
Kiiku Yamamoto
Kenji Yamada
Kenji Yamada