公开(公告)号：US20240409344A1

公开(公告)日：2024-12-12

申请号：US18581031

申请日：2024-02-19

Applicant: Caliber, Inc.

Inventor： Ernest J DELANGHE ,  Kasey PIPO ,  William BUTTERFIELD ,  Jon LEIKVOLD ,  Anthony DELANGHE ,  Steven POTTER

IPC: B65G69/30

Abstract: A traction ladder is configured to engage a ramp engaging a platform of a transportation vehicle or accessory where the traction ladder includes a first side rail having a first proximal end configured to engage the ground and a first distal end configured to engage a crossbar of the ramp, and a second side rail having a second proximal end configured to engage the ground and a second distal end configured to engage a crossbar of the ramp. The traction ladder includes a plurality of crossbars spaced from each other, each cross bar is pivotally attached to the first side rail at a first pivot and pivotally attached to the second side rail at a second pivot. The traction ladder is configured to be positioned in a first position by pivoting the first and second sider rails about the first and second pivots such that the plurality of traction ladder crossbars are substantially orthogonal to the first and second side rails. The traction ladder is configured to be moved to a second position by pivoting the first and second side rails about the first and second pivots such that the first and second side rails are positioned proximate each other.