公开(公告)号：US4350255A

公开(公告)日：1982-09-21

申请号：US162600

申请日：1980-06-24

申请人： Helmut Blase ,  Arend Hogemann ,  Dieter Schulze

发明人： Helmut Blase ,  Arend Hogemann ,  Dieter Schulze

IPC分类号： B66C23/687 ,  B66C23/693 ,  B66C23/70 ,  B66C23/06

CPC分类号： B66C23/705

摘要： A telescopic, mobile crane comprising, a first base member pivotally mounted on a carriage, a second telescopic member telescopically engaged with the first member, an idle or manual member telescopically engaged to the second member and a drive piston and cylinder unit connected between the first and second members for extending the second member from the first member. An arresting apparatus is connected between the piston and cylinder arrangement and the idle member for extending the idle member. When the idle member is extended, the first and second members are locked to each other by a pawl and pin arrangement and the second member is disengaged from the piston and cylinder arrangement. After the idle member is extended, the first and second members are unlocked from each other to permit the extension of the second member.

摘要翻译： 一种伸缩式移动式起重机，包括：可枢转地安装在滑架上的第一基座构件，与所述第一构件可伸缩地接合的第二伸缩构件，与所述第二构件可伸缩地接合的怠速或手动构件;以及驱动活塞和气缸单元， 以及用于从第一构件延伸第二构件的第二构件。 在活塞和气缸装置之间连接有止动装置和用于延伸空转构件的空转构件。 当怠速构件被延伸时，第一和第二构件通过棘爪和销排列彼此锁定，并且第二构件与活塞和气缸装置分离。 在空闲构件被延伸之后，第一和第二构件彼此解锁以允许第二构件的延伸。