Kubota Corporation

Teruhiko Iwamoto

Taiki Furuki

Toshihiro Nakao

Tetsuji Matsushita

Hitoshi Oono

Yoshihiro Kushita

Masahiko Kobayashi

Kunihiro Suzuki

Ryuki Nishimoto

Kenji Ikeda

Shinobu Nakanishi

Makoto Noguchi

Tsutomu Aizawa

Hitoshi Ono

Izumi Tsukamoto

Yukiya Chiba

A working machine includes a rear machine body on which an operator's seat is mounted, a front machine body to which a working tool is attached, a center shaft having a first axis extending in a fore-and-aft direction, a first supporting part supporting the center shaft rotatably relative to the rear machine body around the first axis, a coupling shaft having a second axis extending in a vertical direction and connected to the front machine body, and a second supporting part supporting the center shaft rotatably relative to the coupling shaft relative to the second axis. The first supporting part includes a first spherical plain bearing, and the first spherical plain bearing includes a first inner wheel including a convex curved sliding surface and provided on an outer circumferential surface of the center shaft, and a first outer wheel including a concave curved sliding surface and provided on the rear machine body.

Working machine

A working machine includes a steering, a steering post supporting the steering, and a steering column covering the steering post. The steering column has a switch panel arranged below the steering on an upper surface of the steering column, and the switch panel has a first switch group including a plurality of switches arranged to have an inclining configuration in plan view where the switches align in a machine outward direction as shifting forward, the first switch group being arranged on both sides of the steering post in a machine width direction.

The working machine includes a traveling device, a traveling motor, a hydraulic pump including a swashplate, a prime mover to drive the hydraulic pump, a first servo-cylinder to set an angle of the swashplate, a charge pump to supply pilot fluid to the first servo-cylinder, a switching valve shiftable between a traveling position to supply the pilot fluid from the charge pump to the first servo-cylinder and a neutral position to stop the pilot fluid supply to the first servo-cylinder, a switching operation member operable to select either a traveling mode or a neutral mode, and a controller to shift the switching valve between the traveling position and the neutral position. The controller holds the switching valve at the neutral position after the switching operation member is operated to select the traveling mode until a rotation speed of the prime mover becomes not less than a first predetermined rotation speed.

Wheel loader

A working machine includes: a right side panel; a left side panel; and a joint structure configured to joint an upper portion of an intermediate portion of the right side panel and an upper portion of an intermediate portion of the left side panel to each other. The joint structure includes: a lower member configured to joint upper portions of the right side panel and the left side panel to each other; a upper member arranged above the lower member with a clearance kept from the lower member; a front joint member configured to joint a side of a front end of the upper member and a side of a front end of the lower member to each other; a rear joint member configured to joint a side of a rear end of the upper member and a side of a rear end of the lower member to each other.

Portion of a wheel loader

Cabin for work machine

Growing community of inventors

Sakai, Japan

Teruhiko Iwamoto