Kabushiki Kaisha Komatsu Seisakusho

Komatsu Corporation

Takumi Onoda

Yukio Moriya

Fujitoshi Takamura

Toshio Yokoyama

Shigeru Kinoshita

Takeshi Kobayashi

Kouya Iizuka

A timber crusher capable of sufficiently exhibiting an effect of preventing timber pieces from scattering to an outside and also preventing damage to the crusher is provided. To this end, in the timber crusher comprising, on a base, a crusher for crushing timber into pieces and a rotary tub for guiding the timber to the crusher, a hopper ( ) having an upwardly open shell part ( ) and guiding the charged timber to the rotary tub ( ) is provided at an opening of the rotary tub ( ). The hopper ( ) is inclined with respect to the horizontal and is tiltable. Further, the hopper ( ) may be provided with a scattering prevention cover ( ) for preventing timber from scattering to an outside from an inside of the rotary tub ( ).

Timber crusher

Apparatus for controlling straight excavating operation with hydraulic

Hydraulically-operated equipment such as travelling equipment or working equipment for use in construction machinery such as a power shovel, shoveldozer and bulldozer. The hydraulically-operated equipment comprises a hydraulic driving mechanism actuated by hydraulic pressure, a hydraulic pressure supplying device for supplying hydraulic pressure to a hydraulic pipeline system for the hydraulic driving mechanism and a controller for controlling the hydraulic pressure supplying device such that the supplying rate at which hydraulic pressure is supplied to the hydraulic pipeline system according to the supply of hydraulic pressure is decreased in a specified period after a dead zone period in which hydraulic pressure starts to rise. This arrangement prevents an operational lag in the hydraulic driving mechanism as well as a shock at the time of start-up and shut-down.

Hydraulically-operated equipment for construction machinery

Method and device for automating operation of construction machine

Automatic vibration method and device for hydraulic drilling machine

Teaching and playback method for work machine

Apparatus for controlling hydraulic pumps for construction machine

Confluence valve circuit of a hydraulic excavator

Growing community of inventors

Kawasaki, Japan

Takumi Onoda