METHOD AND APPARATUS FOR LOCKING MACHINE

专利名称：METHOD AND APPARATUS FOR LOCKING

MACHINE

发明人：FURUTA, Hideto, Shin Caterpillar Mitsubishi

Ltd.,MORIYA, Naoyuki, Shin CaterpillarMitsubishi Ltd.

申请号：EP99918351.0申请日：19990510公开号：EP1018578A1公开日：20000712

专利附图：

摘要：Detectors (52) through (58), which are adapted to detect operation signals from

operating devices for inputting actuation commands to a work machine, and a hydraulicsystem locking switch (47), which is adapted to command locking so as to halt the workmachine or unlocking to enable the work machine to resume working, are connected to alogic circuit (51) adapted to compute the method of locking the work machine based onsignals input from these components. A hydraulic system locking electromagneticselector valve (41) adapted to maintain or release the work machine at or from thelocked state is connected to the logic circuit (51). In case an unlocking command is sent inthe situation where there is an outstanding operation signal input to the work machine,the logic circuit (51) maintains the work machine at the locked state until a safety check isperformed. By commanding unlocking of the work machine after commanding its lockingin the state where there is no outstanding operation signal input to the work machine,the work machine is released from the locked state.

申请人：Shin Caterpillar Mitsubishi Ltd.

地址：10-1, Yoga 4-chome, Setagaya-ku Tokyo 158-8530 JP

国籍：JP

代理机构：Kemp, Paul Geoffrey

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