A multi-stage mast module is cooperable with a mast lift. The mast lift includes a base supporting the multi-stage mast module and a platform coupled with the multi-stage mast module. The multi-stage mast module includes a mast unit including a plurality of telescoping mast sections, and a multi-stage drive connected between the telescoping mast sections of the mast unit. Gas springs are connected between the telescoping mast sections of the mast unit. The gas springs act between the adjacent ones of the telescoping mast sections.
申请公布号
WO2012024378(A3)
申请公布日期
2012.05.31
申请号
WO2011US48053
申请日期
2011.08.17
申请人
JLG INDUSTRIES, INC.;WATSON, JASON, JAMES;CAMPBELL, GEOFFREY, GEORGE