PURPOSE:To attempt the omit of an electromagnetic clutch and the realization of wide range capacity control of a compressor starting from zero capacity. CONSTITUTION:A sleeve 8 which is fitted around a drive shaft 4 so as to pivot a rotary swash plate 7 slant-movably and a stop means 40 which can hold the sleeve 8 to the minimum capacity position are provided. A hydraulic actuation chamber 21a which is formed in the sleeve 8 and can individually move the sleeve 8 straight and a hydraulic pump 20 which is connected to the drive shaft 4 and can circulate the enclosed oil in a crank room 15 are provided. Further, a pressurized oil is supplied from the hydraulic pump 20 to the hydraulic operation room 21a selectively through an oil passage 25 a changeover valve 44 which can displace the stop means 40 as well as the sleeve 8 forcely from the minimum capacity position to the zero capacity position is provided. Thereby, since an electromagnetic clutch can be omitted by the realization of zero capacity running, the saving of fuel comsumption by the decrease of an engine load in addition to the decrease of a compressor weight can be contributed.

Variable capacity type compressor

PURPOSE:To make repair and inspection performable without removing a cabin, by making the cabin tiltable centering on a turning fulcrum shaft together with a fender, a floor plate and a dashboard. CONSTITUTION:Fenders 2L and 2R are installed projectingly far frontward than main frames 1L and 1R, while cabin frames 12L and 12R are connected to an upper ceiling frame 22 from the top of each of these fenders 2L and 2R. A front part of the cabin is formed by a front part frame 28 and a dashboard 11. At this dashboard 11, there is additionally provided with a steering handle 10 and further provided with brake pedals at both sides and a clutch pedal 39, while the whole lot of the cabin is tiltably turned round in leaving these elements installed intact.

Hara Toshihiro

Papers

Cabin device for farm tractor