发明名称 Hydraulic excavator
摘要 A hydraulic excavator includes a traveling unit and a revolving unit mounted on the traveling unit. The revolving unit includes a revolving frame as a base, right and left side sections, a cab, a hand rail and a grip. The right and left side sections are disposed on right and left sides of the revolving unit. The cab is provided at a first of the right and left side sections. The hand rail is provided at a front edge on a second of the right and left side sections. The hand rail extends upward from the front edge toward a rear of the revolving unit. The grip is provided below the hand rail and on a side surface of the revolving frame. The traveling unit includes a track frame, and a step provided on a side surface of the track frame below the hand rail.
申请公布号 US9469970(B2) 申请公布日期 2016.10.18
申请号 US201314345440 申请日期 2013.02.18
申请人 KOMATSU LTD. 发明人 Nakamura Naoto
分类号 B60R3/02;E02F9/22;B60R3/00;E02F9/08;B62D33/063;E02F9/16;E02F9/24 主分类号 B60R3/02
代理机构 Global IP Counselors, LLP 代理人 Global IP Counselors, LLP
主权项 1. A hydraulic excavator comprising: a traveling unit; and a revolving unit mounted on the traveling unit, the revolving unit including a revolving frame as a basea right side section on a right side in a left and right direction of the revolving unit with respect to a center line of the revolving unit, the center line extending in a forward and backward direction of the revolving unit, anda left side section on a left side in the left and right direction of the revolving unit with respect to the center line,a cab provided at a first of the right side section or the left side section,a hand rail provided at a front edge on a second of the right side section or the left side section, the hand rail extending upward from the front edge toward a rear of the revolving unit, anda grip provided below the hand rail and on a side surface of the revolving frame, and the traveling unit including a track frame,a step provided on a side surface of the track frame below the hand rail; anda rear step,when the revolving unit is positioned such that the forward direction of the revolving unit is identical to the backward direction of the traveling unit, the bottom edge section of the hand rail at the front edge is positioned in front of a middle of the rear step along the forward and backward direction of the revolving unit, and the grip is positioned behind the middle of the rear step along the forward and backward direction of the revolving unit, the grip being formed in a U-shape and extending in the vertical direction, a bottom end portion of the grip extending toward the revolving frame, and a tip end of the bottom end portion of the grip being separated from the revolving frame.
地址 Tokyo JP