Title:
昇降装置
Document Type and Number:
Japanese Patent JP6696932
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lifting device in which a lifting member does not move from a predetermined position even when a fluid is discharged from a valve when an excessive fluid is supplied, in a lifting device using a fluid.SOLUTION: A lifting device 1 includes: a fluid supply source; a drive mechanism 3 including a drive part 31 reciprocating and driving by inflow and discharge of a fluid; a lifting member 4 moving upward/downward; a supply passage 5 for conveying a fluid; a discharge passage 6 for discharging the fluid; a discharge valve 7 for discharging the fluid to the discharge passage 6; and a restriction mechanism 8 for restricting the movement of the lifting member 4 by supporting the lifting member 4. The restriction mechanism 8 includes: a restriction member 81 moving between a restriction position for restricting the lowering of the lifting member 4 and a retreat position for allowing the lifting member 4 to move from the lower side to the upper side; and a release member 84 for moving the restriction member 81 to the retreat position. The lifting member 4 has a part 42a to be engaged which is engaged with the restriction member 81; and a pressing part 42b for moving the restriction member 81 to the retreat position.SELECTED DRAWING: Figure 5
Inventors:
Tatsuo Yoshimura
Yasuhiro Ao
Yasuhiro Ao
Application Number:
JP2017083058A
Publication Date:
May 20, 2020
Filing Date:
April 19, 2017
Export Citation:
Assignee:
Hilex Corporation
International Classes:
A61H33/00; B66F3/35
Domestic Patent References:
| JP2016112415A | ||||
| JP2010273783A |
Attorney, Agent or Firm:
Asahina Patent Office