Hitachi Construction Machinery Co., Ltd.

Komatsu Corporation

Kohei Urase

Katsuhiro Sasaki

Teruo Irino

Shigehisa Hagura

Kazuhiko Hiraoka

Tomoyuki Miyata

Akira Saito

Tomoyuki Tanaka

Yuuki Umizaki

Makoto Motozu

Seiichi Kihara

Takaharu Nishimura

Akira Fukushima

Akio Ohta

Swing post for a construction machine

Frame for a construction machine

Portion of a hydraulic excavator

Hydraulic excavator

In a crawler frame in which legs in a center frame are formed from cast steel, a simple structure is achieved by reducing the number of components. To this end, the crawler frame, which has a center frame composed of a central frame section for supporting a swing bearing and legs located on the right and left sides of the central frame section; and track frames disposed on the sides of the distal ends of the legs, respectively, of the center frame, is designed such that each of the legs is bifurcated into front and rear leg sections and the front and rear leg sections are respectively formed from cast steel.

Crawler frame for construction machine

Growing community of inventors

Konan, Japan

Kohei Urase