Title:
梯子車
Document Type and Number:
Japanese Patent JP7210361
Kind Code:
B2
Abstract:
To provide a wheelchair capable of speeding up the motion of a hydraulic cylinder installed in the wheelchair and capable of taking measures to meet inability of a power unit.SOLUTION: The wheelchair includes: main stairs pivotally installed in a bodywork; sub-stairs that are freely slidable along the main stairs; an auxiliary step pivotally installed in the sub stairs; a tilt cylinder 6 that makes the main stairs undulate; a slide drive cylinder 11 that drives the sub-stairs in a direction projecting from the main stairs; a rotary drive cylinder 36 that rotates the auxiliary stairs; power units 51A, 51B that become a hydraulic fluid supply source; and hydraulic circuits 60A, 60B that selectively supply the hydraulic fluid from the power units to any one of the tilt cylinder, slide drive cylinder, and a rotary drive cylinder. To the hydraulic circuits, accumulators 70A,70B are connected and, there is a structure that can supply the hydraulic fluid from the accumulators selectively to any one of the tilt cylinder, slide drive cylinder, and the rotary drive cylinder.SELECTED DRAWING: Figure 5
Inventors:
Suzuki Tadahiko
Application Number:
JP2019070257A
Publication Date:
January 23, 2023
Filing Date:
April 01, 2019
Export Citation:
Assignee:
Japan Lift Co., Ltd.
Tonox Co., Ltd.
Tonox Co., Ltd.
International Classes:
A62C27/00; B66F11/04; E06C5/08; F15B1/027; F15B20/00
Domestic Patent References:
| JP2017209234A | ||||
| JP2004060664A | ||||
| JP2009156350A | ||||
| JP2003310779A |
Attorney, Agent or Firm:
Takashi Murai
Hiromi Murai
Hiromi Murai
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