Kabushiki Kaisha Komatsu Seisakusho

Masao Yokoyama

Hiroshi Ota

Koji Ohta

Masaharu Kon

Tsuneo Sughihira

An outrigger for use in a wheel-type vehicle which can be mounted just behind a front wheel where available height for mounting is very limited. The outrigger comprises a support fixedly secured to an axle of the vehicle, a first and a second link both pivotally mounted to the support and being in parallel to each other, an earth contacting member pivotally connected to both first and second links, the earth contacting member being generally L-shaped when viewed from the bottom, and a hydraulic cylinder pivotally connected to the support and the earth contacting member.

Outrigger for use in wheel-type vehicle

A hydraulic excavator has a bucket actuating and control linkage comprising a boom pivotally connected at one end to a self-propelled vehicle, a stick pivotally connected at one end to the other end of the boom, and a bucket pivotally mounted on the other end of the stick. A pair of hydraulic cylinders for actuating the bucket are pivotally connected to the boom via a pair of bucket attitude control bellcranks, respectively. By adjustment of the angular position of the bucket attitude control bellcranks relative to the boom, as by another pair of hydraulic cylinders, the bucket can be conditioned for a level crowd attitude, crowd-to-carry attitude, or crowd-to-dump attitude.

Front-loading hydraulic excavator

A bulldozer assembly has a swivel connection between blade and C-frame for permitting both angling and tilting motions of the former relative to the latter. The swivel connection comprises a swivel block mounted centrally astride the front end of the frame for pivotal or tilting motion relative to same in its lateral direction about a horizontal axis. The swivel block is hingedly jointed to the blade so that the latter may be tilted simultaneously with the block but free to angle relative to same about a normally vertical axis. A tilt cylinder is operatively connected between frame and swivel block, and a pair of laterally spaced angle cylinders between frame and blade.

Combination angling-tilting bulldozer

A mounting arrangement for supporting a bulldozer blade on a vehicle having a C-frame wherein the blade is supported by a centrally located universal joint on the C-frame and a pair of longitudinary arranged hydraulic jacks. A generally horizontally tilt jack is pivotally connected between the back of the blade and a bracket provided atop the C-frame to stabilize the mounting structure and to tilt the blade. A rocker arm is pivotally mounted at a central portion thereof to the bracket, one end of the rocker arm being connected to the blade and the other end thereof being connected to the C-frame.

Growing community of inventors

Hirakata, Japan

Masao Yokoyama