Komatsu Corporation

Junichi Suneya

Masahiko Hamaguchi

Takanori Yamahata

Naoki Kimura

Makoto Yomogita

Masato Kitashou

Satoshi Nakagawa

Shigeaki Usui

A work vehicle cab includes a floor, a ceiling, a left supporting member, a right supporting member, a front panel, a front panel reinforcement member, a front-left pillar, and a front-right pillar. The ceiling is arranged above the floor. The left supporting member extends upward from the front section of the floor. The right supporting member extends upward from the front section of the floor. The front panel is arranged between the left supporting member and the right supporting member. The front panel reinforcement member, arranged above the front panel, extends in a left-right direction and connects the left supporting member and the right supporting member. The front-left pillar extends from the front section of the ceiling to the front panel reinforcement member. The front-right pillar extends from the front section of the ceiling to the front panel reinforcement member.

Cab and work vehicle

A cab body has a panel section. The panel section includes a concave section that is recessed upward. A floor frame includes a convex section and supports the cab body. The convex section has a shape that protrudes facing upward and is arranged to protrude from the concave section. A seal member seals a gap between the concave section and the convex section. The seal member has a first contact surface, a second contact surface, and an inclined surface. The first contact surface contacts the convex section. The second contact surface contacts the panel section. The inclined surface is inclined with regard to the first contact surface and the second contact surface. A bracket has an attachment section and a pressing surface. The attachment section is attached to the panel section. The pressing surface presses the inclined surface.

A steering post has a post end part positioned at an upper end on the front surface of the steering post. A case section has a case end part positioned at a lower end on the front surface of the case section. A gap is provided between the post end part and the case end part. A cover member is disposed to cover the gap. The cover member has a shape that is curved to not intersect a locus of the case end part when the case section is tilted with respect to the steering post. A lower end part of the cover member is connected to the post end part. An upper end part of the cover member is disposed above the case end part inside the case section.

Motor grader

In a cab for construction machine, a support structure for a front console is provided with a first fixed member supporting a cover member and a second fixed member supporting the first fixed member from below the first fixed member. The first fixed member is fixed to a front plate at two locations directly below both ends of a front window. The second fixed member is fixed to a floor plate.

Growing community of inventors

Komatsu, Japan

Junichi Suneya