Title:
FORK MOVEMENT CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/026184
Kind Code:
A1
Abstract:
The present invention relates to a fork movement control device. The fork movement control device comprises: a first control valve unit connected to a first head port of a first cylinder by a first channel line and connected to a first tail port of the first cylinder by a second channel line; a second control valve unit connected to a second head port of a second cylinder by a third channel line and connected to a second tail port of the second cylinder by a fourth channel line; and a third control valve unit connected to the first channel line by a fifth channel line and connected to the third channel line by a sixth channel line, wherein a seventh channel line that connects the second channel line and the fourth channel line connects the first tail port and the second tail port.
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Inventors:
NA KI EOP (KR)
Application Number:
PCT/KR2017/008326
Publication Date:
February 08, 2018
Filing Date:
August 02, 2017
Export Citation:
Assignee:
DOOSAN CORP (KR)
International Classes:
B66F9/22; B66F17/00; F15B13/02
Foreign References:
| US3184088A | 1965-05-18 | |||
| US5088880A | 1992-02-18 | |||
| KR20060070263A | 2006-06-23 | |||
| KR20110073080A | 2011-06-29 | |||
| JP2003104178A | 2003-04-09 |
Other References:
See also references of EP 3495315A4
Attorney, Agent or Firm:
YOON, Yu Kwang et al. (KR)
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