作者: Toshiyuki Takeuchi , Takeharu Matsuzaki , Makio Tsukada , Shigeto Nakajima , Yasuhiko Naruse
DOI:
关键词: Mast (sailing) 、 Butterfly valve 、 Structural engineering 、 Check valve 、 Ball valve 、 Acoustics 、 Geology
摘要: A hydraulic device for a forklift is disclosed. The includes tilting mast and fork supported by the so that lifted lowered. tilt cylinder operates to means of oil supplied valve. restricting valve arranged in an passage connecting with When tilted carrying object located higher than predetermined reference position, closes angle limited. check between blocks flow from position maintained. This prevents unintentional movement mast.