公开(公告)号：US09963854B2

公开(公告)日：2018-05-08

申请号：US14937294

申请日：2015-11-10

Applicant: Caterpillar Inc.

Inventor： Robert J. Madera ,  John M. Teter ,  Dennis D. Wetterich ,  Timothy N. Zier ,  Terril J. Johnson

IPC: E02F9/08 ,  B60R3/00 ,  E04H17/20

CPC classification number: E02F9/0833 ,  B60R3/002 ,  E04H17/20

Abstract: A guardrail for a walkway of a machine includes a vertical channel post having an end wall and side walls forming an open channel. The vertical channel post may taper in the side-to-side and fore-aft directions as the post extends bottom to top. The vertical channel post may also transition from a generally rectangular cross-section near the bottom to a more rounded cross-section at the top. Curved top notches at the top of the vertical channel post allow a top rail of the guardrail to rest on top of the post and be attached. Intermediate notches along vertical edges of the side walls receive an intermediate rail of the guardrail. The top notches and the intermediate notches are arranged so that the top rail and the intermediate rail may be vertically aligned and parallel to each other and to the walkway enclosed by the guardrail.

公开(公告)号：US20170130424A1

公开(公告)日：2017-05-11

申请号：US14937294

申请日：2015-11-10

Applicant: Caterpillar Inc.

Inventor： Robert J. Madera ,  John M. Teter ,  Dennis D. Wetterich ,  Timothy N. Zier ,  Terril J. Johnson

IPC: E02F9/08 ,  E02F9/24

CPC classification number: E02F9/0833 ,  B60R3/002 ,  E04H17/20

Abstract: A guardrail for a walkway of a machine includes a vertical channel post having an end wall and side walls forming an open channel. The vertical channel post may taper in the side-to-side and fore-aft directions as the post extends bottom to top. The vertical channel post may also transition from a generally rectangular cross-section near the bottom to a more rounded cross-section at the top. Curved top notches at the top of the vertical channel post allow a top rail of the guardrail to rest on top of the post and be attached. Intermediate notches along vertical edges of the side walls receive an intermediate rail of the guardrail. The top notches and the intermediate notches are arranged so that the top rail and the intermediate rail may be vertically aligned and parallel to each other and to the walkway enclosed by the guardrail.