US 12,187,214 B2
ROPS frame for work vehicle, and work vehicle
Kohta Nakao, Sakai (JP); and Yuki Monde, Sakai (JP)
Assigned to Kubota Corporation, Osaka (JP)
Filed by Kubota Corporation, Osaka (JP)
Filed on Oct. 12, 2023, as Appl. No. 18/379,339.
Application 18/379,339 is a continuation of application No. 17/838,927, filed on Jun. 13, 2022, granted, now 11,807,182.
Claims priority of application No. 2021-153445 (JP), filed on Sep. 21, 2021.
Prior Publication US 2024/0083379 A1, Mar. 14, 2024
Int. Cl. B60R 21/13 (2006.01); B60R 21/00 (2006.01)
CPC B60R 21/13 (2013.01) [B60R 2021/0018 (2013.01); B60R 2021/0083 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A roll-over protective structure (ROPS) frame for a work vehicle, comprising:
a plurality of pipes comprising:
a first pipe having an end; and
a second pipe having an end facing the end of the first pipe;
a plate-shaped first joint and a plate-shaped second joint each placed on an outer surface of the end of the first pipe and on an outer surface of the end of the second pipe and opposite to each other in a cross-sectional view of the pipes;
a first collar attached to an inner portion of the first pipe which inner portion faces the first joint and to an inner portion of the first pipe which inner portion faces the second joint;
a second collar attached to an inner portion of the second pipe which inner portion faces the first joint and to an inner portion of the second pipe which inner portion faces the second joint;
a first bolt extending through the first and second joints and the first collar and fastening the first and second joints toward each other;
a second bolt extending through the first and second joints and the second collar and fastening the first and second joints toward each other;
a first frame member oriented in a direction crossing the first and second pipes and having an end facing the respective ends of the first and second pipes; and
a coupling member coupled to the end of the first pipe and the end of the first frame member and coupled to the end of the second pipe and the end of the first frame member.