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公开(公告)号：US20180258962A1
公开(公告)日：2018-09-13
申请号：US15760766
申请日：2016-01-21
发明人： Yuichi Taguchi
CPC分类号： F15B11/04 , B02C1/02 , E02F3/965 , E02F9/2203 , E02F9/2217 , E04G23/082 , F15B1/265 , F15B9/10 , F15B11/22 , F15B15/221 , F15B2211/7053 , F15B2211/7128 , F15B2211/75 , F15B2211/755 , F15B2211/775
摘要： A cylinder acceleration mechanism includes a buffer tank that supplies and discharges oil to and from a bottom-side line that is connected to a bottom-side chamber of an actuating cylinder, and an inversion lever having an intermediate fulcrum as a rotation axis. The buffer tank includes a buffer chamber with a variable capacity achieved by a seal lid moving back and forth inside of a case, and extends and reduces a length of a coupling rod provided to the seal lid and projects from the case. A bottom-side branching line branched from the bottom-side line is connected to the buffer chamber. The actuating rod of the actuating cylinder and the coupling rod of the buffer tank are coupled to respective ends of the inversion lever. The actuating rod and the coupling rod extend and retract alternately with respect to each other as the inversion lever turns.
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公开(公告)号：US20170125146A1
公开(公告)日：2017-05-04
申请号：US15343993
申请日：2016-11-04
发明人： Hidenobu Shiki , Yuta Yasumatsu , Yuichi Taguchi
摘要： There is provided an electromagnet control apparatus that continuously attracts crushed pieces of metals with the core of a magnetized electromagnet without immediately releasing the attracted pieces in a composite operation of a construction machine. The electromagnet control apparatus includes a control unit that controls a demagnetized state, a magnetized state, or a counter-magnetized state of an electromagnet. Until the end of a first threshold time tth1 from a transition to the demagnetized state from the magnetized state, the control unit ignores a turn-on voltage for turning on first transistors (a first transistor, a fourth transistor) and turns on the first transistors after a lapse of a second threshold time that is shorter than the first threshold time. The demagnetized state and the magnetized state are repeated until the end of the first threshold time tth1 from the transition to the demagnetized state.
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公开(公告)号：US10224137B2
公开(公告)日：2019-03-05
申请号：US15343993
申请日：2016-11-04
发明人： Hidenobu Shiki , Yuta Yasumatsu , Yuichi Taguchi
摘要： There is provided an electromagnet control apparatus that continuously attracts crushed pieces of metals with the core of a magnetized electromagnet without immediately releasing the attracted pieces in a composite operation of a construction machine. The electromagnet control apparatus includes a control unit that controls a demagnetized state, a magnetized state, or a counter-magnetized state of an electromagnet. Until the end of a first threshold time tth1 from a transition to the demagnetized state from the magnetized state, the control unit ignores a turn-on voltage for turning on first transistors (a first transistor, a fourth transistor) and turns on the first transistors after a lapse of a second threshold time that is shorter than the first threshold time. The demagnetized state and the magnetized state are repeated until the end of the first threshold time tth1 from the transition to the demagnetized state.
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公开(公告)号：US10527067B2
公开(公告)日：2020-01-07
申请号：US15760766
申请日：2016-01-21
发明人： Yuichi Taguchi
摘要： A cylinder acceleration mechanism includes a buffer tank that supplies and discharges oil to and from a bottom-side line that is connected to a bottom-side chamber of an actuating cylinder, and an inversion lever having an intermediate fulcrum as a rotation axis. The buffer tank includes a buffer chamber with a variable capacity achieved by a seal lid moving back and forth inside of a case, and extends and reduces a length of a coupling rod provided to the seal lid and projects from the case. A bottom-side branching line branched from the bottom-side line is connected to the buffer chamber. The actuating rod of the actuating cylinder and the coupling rod of the buffer tank are coupled to respective ends of the inversion lever. The actuating rod and the coupling rod extend and retract alternately with respect to each other as the inversion lever turns.
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