Komatsu Corporation

Daijiroh Tanaka

Tsuyoshi Yoshida

Tatsuo Aira

An excavating bucket includes a bottom surface section, a bucket body having a rear surface section and a side surface section, a lip section, a bracket, and teeth. The lip section is fixed to an edge portion of the bucket body at an opposite side to the rear surface section. The bracket has a hole through which a coupling pin for attaching to the arm passes. When the length of a virtual line Slinking the center of the hole and the front end of the lip section is set as a wrist radius V, a length of the longest line segment perpendicular to the virtual line Sfrom the virtual line Sto the bottom surface section is set as a bucket depth D, and the angle formed between the lip section and the virtual line Sis set as a lip angle &#x3b8;, 62&#xb0;&#x2266;&#x3b8;&#x2266;72&#xb0; and 0.7&#x2266;D/V&#x2266;0.8.

Growing community of inventors

Hirakata, Japan

Daijiroh Tanaka