Kawasaki Jukogyo Kabushiki Kaisha

Makoto Oda

Katsumi Inomata

Yasunori Kondo

Hiroyoshi Iwata

Hidekazu Anai

Tooru Niihara

Yasuyuki Sakai

Isao Makiuchi

Kunihiro Nagamori

A shield machine including an excavator capable of excavating tunnels of various cross-sectional shapes, the excavator including: a rotary drum supported at a front end side portion of a shield machine main body to be rotatable around a first center axis; a cutter supporting frame supported by the rotary drum to be rotatable around a second center axis; a rotary cutter head supported by the cutter supporting frame to be rotatable around a third center axis and including a plurality of cutter bits on a surface thereof; a rotary auxiliary cutter head supported by the rotary drum to be rotatable around a fourth center axis; and first, third, and fourth rotating mechanisms, and a swinging drive mechanism configured to respectively cause the rotary drum, the rotary cutter head, the rotary auxiliary cutter head, and the cutter supporting frame to independently rotate.

Shield machine

Growing community of inventors

Kako-gun, Japan

Makoto Oda