Kabushiki Kaisha Komatsu Seisakusho

Akio Terai

Hiroshi Ota

Tuneo Sugihira

Takashi Miyauchigo

Michiya Tanaka

Yasuhiro Todorobaru

A grip attachment to an implement arm of construction or industrial equipment via a swivel coupling comprises three interdigitating, articulate fingers, two pivotable about a first axis and the other pivotable about a second axis parallel to the first. Each finger consists of a first segment pivotable about the first or second axis and a second segment pin-jointed to the first segment. Hydraulic cylinders are employed to cause pivotal motion of the fingers about the first and second axes, and of their second segments relative to the first segments. An additional hydraulic cylinder acts to cause pivotal displacement of the second axis about the first axis, so that the finger pivotable about the second axis can be extended and contracted with respect to the other two fingers.

Gripping device with interdigitating, articulate fingers

Bulldozer blade mounting including two push arms swingably mounted on the opposite sides of a tractor at their proximal ends, a blade connected to the distal ends of the arms, a tilt brace connected between the top of the respective arm and the upper side of the back of the blade, and a pair of diagonal braces each swingably connected to the respective arm and extending inwardly toward each other and connected at its inner end together by a universal pivotable means. The location of the universal pivotable means is so selected that it lies at a level higher than the plane including the pivotable connection of the respective diagonal braces to the arms. This construction eliminates the need for slidable and pivotable connection between the diagonal braces and the loose connection of the slidable and pivotable connection to the back of the blade thereby permitting the construction and assembly to be simple and the production cost to be low while proper operation of the blade mounting is insured.

Growing community of inventors

Hirakata, Japan

Akio Terai