Title:
高所作業車用の増圧装置
Document Type and Number:
Japanese Patent JP6841012
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a booster for a high-lift work vehicle which shortens a time necessary for crimp work.SOLUTION: A booster 12 for a high-lift work vehicle 1 comprises a pressure sensor 14 for detecting the pressure of a working fluid which is sent to a hydraulic tool (hydraulic crimp tool 100), and a control device 31 for controlling an electromagnetic changeover valve 24 while recognizing the pressure transition of the working fluid on the basis of a signal from the pressure sensor 14. When it is determined that the pressure of the working fluid reaches a prescribed value (prescribed pressure P) in the middle of the decompression of the working fluid which is sent to the hydraulic tool, the control device 31 controls the electromagnetic changeover valve (original pressure changeover valve 24), switches a state that the working fluid is supplied to a decompression oil passage 25 to a state that the working fluid is not supplied to the decompression oil passage 25, and interrupts an operation of a movable part 100a of the hydraulic tool when a prescribed time (prescribed time T) elapses from the determination that the pressure of the working fluid reaches the prescribed value.SELECTED DRAWING: Figure 9
Inventors:
Yoshinari Aso
Takuya Matsumoto
Toshihiko Miki
Kiyotaka Kawai
Daisuke Yamashita
Takuya Matsumoto
Toshihiko Miki
Kiyotaka Kawai
Daisuke Yamashita
Application Number:
JP2016225142A
Publication Date:
March 10, 2021
Filing Date:
November 18, 2016
Export Citation:
Assignee:
Tadano Co., Ltd.
International Classes:
F15B11/028; B66F9/22; B66F11/04; F15B3/00
Domestic Patent References:
| JP10096403A | ||||
| JP2014020543A | ||||
| JP3071866U |
Attorney, Agent or Firm:
Yanouchi Foreign Patent Office