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    • 4. 发明专利
    • Operation indication apparatus in tpo-clutch controller
    • TPO离合器控制器中的操作指示装置
    • JPS59153623A
    • 1984-09-01
    • JP2788783
    • 1983-02-22
    • Iseki & Co Ltd
    • KAKIHASHI TOMIO
    • A01B63/00A01B63/10A01B71/02B60K17/28B60K23/00F16D48/06
    • F16D48/066F16D48/04F16D48/068F16D2500/1026F16D2500/10437F16D2500/7041
    • PURPOSE:To improve the operation performance of a PTO clutch by installing a boost controlling mechanism with which semiclutch state and clutch connection state can be switched, into the hydraulic circuit for the PTO clutch and permitting the clutch connection state to be indicated. CONSTITUTION:In a discharged-oil passage of a hydraulic pump 1, a flow device 2 in which a pressure adjusting valve 9 is installed in an oil passage 6 which communicates to a lift cylinder 5 and a shunt valve 10 and a clutch valve 11 are installed in an oil passage 8 which communicates to a PTO-clutch cylinder 7 is installed. In semiclutch connection, a PTO switch S3 which constitutes a boost controlling mechanism 25 with the flow device 2 is turned ON, and an operation lever 14 is turned gradually to a clutch connection position H. Therefore, an arm 16c is gradually turned through a spring 18, in order to press a spool 10a, and the pressurized oil gradually boosted is supplied into the cylinder 7. Further, when a clutch 24 is connected at a time, the connecting lever 14 is set at connection position H, and the switch S3 is operated to be turned ON.
    • 目的:通过安装可以切换半离合器状态和离合器连接状态的升压控制机构来提高PTO离合器的操作性能,进入PTO离合器的液压回路,并允许指示离合器连接状态。 构成:在液压泵1的排油路中,在与提升缸5和分流阀10以及离合器阀11连通的油路6中设置有压力调节阀9的流动装置2是 安装在与PTO离合器缸7连通的油路8中。 在半连接器中,构成具有流动装置2的升压控制机构25的PTO开关S3接通,操作杆14逐渐转向离合器连接位置H.因此,臂16c逐渐转过弹簧 如图18所示,为了按压滑阀10a,将加压油逐渐提升到气缸7中。此外,当一次连接离合器24时,将连接杆14设定在连接位置H,开关S3 被操作打开。