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Title:
PRESSURE INTENSIFYING DEVICE FOR WORK VEHICLE AT HIGH PLACE
Document Type and Number:
Japanese Patent JP2018059520
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure intensifying device capable of controlling pressure transition of hydraulic oil carried to a hydraulic tool and controlling maximum pressure of hydraulic oil.SOLUTION: A pressure intensifying device 12 for a work vehicle 1 used at high place includes a pressure sensor 14 configured to detect pressure of hydraulic oil fed to a crimp hydraulic tool 100, and a controller 31 configured to control an electromagnetic selector valve 24 with pressure transition of hydraulic oil on the basis of a signal from the pressure sensor 14. The controller 31 is configured to control the electromagnetic selector valve 24 to periodically repeat state of supplying hydraulic oil to a pressure intensifying oil passage 26 and a state of not supplying hydraulic oil to the pressure intensifying oil passage 26, in the middle of intensifying pressure of hydraulic oil fed to the hydraulic tool 100.SELECTED DRAWING: Figure 2

Inventors:
ASO YOSHINARI
MATSUMOTO TAKUYA
MIKI TOSHIHIKO
KAWAI KIYOTAKA
Application Number:
JP2016194970A
Publication Date:
April 12, 2018
Filing Date:
September 30, 2016
Export Citation:
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Assignee:
TADANO LTD
International Classes:
F15B11/028; B66F9/06; B66F11/04; F15B3/00
Attorney, Agent or Firm:
Yanouchi Foreign Patent Office