公开(公告)号：US09297173B2

公开(公告)日：2016-03-29

申请号：US13895877

申请日：2013-05-16

申请人： Dayton Superior Corporation

发明人： Robert A. Spindler ,  Robert J. Flathau

IPC分类号： E04G11/20 ,  E04G11/28

CPC分类号： E04G11/28

摘要： A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.

公开(公告)号：US20130248681A1

公开(公告)日：2013-09-26

申请号：US13895877

申请日：2013-05-16

申请人： Dayton Superior Corporation

发明人： Robert A. Spindler ,  Robert J. Flathau

IPC分类号： E04G11/28

CPC分类号： E04G11/28

摘要： A jump form system provided variously with an integral jump shoe lock mechanism, a reversible gang form shear platform, and a pinion lock mechanism for a roll back carriage. The jump shoe lock mechanism includes a lever pivotably mounted to the jump form system frame above a jump shoe bearing portion of a connecting member, a sleeve mounted to the jump form system frame below the jump shoe bearing portion of the connecting member, and a sleeve-mounted safety pin that is mechanically linked to the lever for engagement and disengagement with a jump shoe. The pinion lock mechanism includes a rack and pinion provided on inner and outer portions of a telescoping carriage assembly, respectively, and a lock arm pivotably mounted to the outer portion adjacent to the pinion, with the rack, pinion, and lock arm including complementary teeth which are locked into place upon pivoting engagement of the locking arm.