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81. 发明授权

EP0254510B1 Extension jib for a boom 有权
标题翻译：扩展JIB为BOOM
公开(公告)号：EP0254510B1
公开(公告)日：1990-10-03
申请号：EP87306389.5
申请日：1987-07-20
申请人： Tadano Ltd.
发明人： Iga, Tadashi
IPC分类号： B66C23/70
CPC分类号： B66C23/702

82. 发明公开

EP4414314A1 WORK MACHINE 审中-实审
公开(公告)号：EP4414314A1
公开(公告)日：2024-08-14
申请号：EP22878518.4
申请日：2022-10-04
申请人： TADANO LTD.
发明人： FUJIMOTO, Tsukasa , NAGAKANE, Kenichi
IPC分类号： B66C23/687
CPC分类号： B66C23/701
摘要： This work machine comprises: a plurality of booms that extend and retract with the power of an actuator; a first pin that is moved by a first spring to connect adjacent booms and is moved by power of a motor to release a connection of the adjacent booms; a second pin that is moved by a second spring to connect the boom and the actuator and is moved by power of the motor to release a connection of the boom and the actuator; and a circuit that is configured so that when the first pin is moved by the first spring or when the second pin is moved by the second spring, a current based on motor idling caused by the movement of the first pin or second pin is not generated.

83. 发明公开

EP4234472A1 CRANE, CRANE CHARACTERISTIC CHANGE DETERMINATION DEVICE, AND CRANE CHARACTERISTIC CHANGE DETERMINATION SYSTEM 审中-实审
公开(公告)号：EP4234472A1
公开(公告)日：2023-08-30
申请号：EP21882816.8
申请日：2021-10-19
申请人： TADANO LTD.
发明人： MINAMI, Yoshimasa
IPC分类号： B66C15/06 , B66C13/00 , B66C23/06
摘要： This crane is capable of transporting cargo and comprises: a feedback control unit for feedback control of the crane or an object to be controlled that is a component of the crane; a learning model that has a weighting factor and learns the characteristics of the object to be controlled in real time by adjusting the weighting factor on the basis of a teacher signal including a first signal generated by the feedback control unit; and a communication control unit that transmits the weighting factor to an external device that is communicatively connected to the crane.

84. 发明公开

EP4129881A1 GUIDE DISPLAY DEVICE, AND CRANE PROVIDED WITH SAME 审中-实审
公开(公告)号：EP4129881A1
公开(公告)日：2023-02-08
申请号：EP21774541.3
申请日：2021-03-23
申请人： TADANO LTD. , The School Corporation Kansai University
发明人： ISHIKAWA Iwao , KOSAKA Takayuki , MASHIMA Keita , KUBOTA Satoshi , TANAKA Shigenori , NAKAHARA Masaya , NAKAHATA Koki
IPC分类号： B66C13/00 , B66C13/46 , H04N7/18
摘要： Provided is a guide display device with which it is possible to track a hung load and display guide information. Also provided is a crane comprising such a guide display device. A guide display device of a crane comprising a data processing unit that creates a plurality of surfaces using point cloud data, which is acquired by a laser scanner from above a hung load and which includes the hung load, and creates a three-dimensional map according to the plurality of surfaces, the three-dimensional map being created for each prescribed period, wherein the data processing unit is configured to set a reference position at the hung load in the three-dimensional map and also set a current surface present within a prescribed distance from a past reference position as the surface of the hung load, thereby tracking the hung load in the three-dimensional map.

85. 发明公开

EP4057462A1 POWER SUPPLY CIRCUIT FOR WORK MACHINE 审中-实审
公开(公告)号：EP4057462A1
公开(公告)日：2022-09-14
申请号：EP20884746.7
申请日：2020-11-04
申请人： TADANO LTD.
发明人： ATARASHI, Kazuya , ITASAKA, Yoshikado
IPC分类号： H02H7/00 , H02H7/18 , H02J7/00 , H02J1/00
摘要： This power supply circuit for work machine is provided with a first switch for switching connection and disconnection of a first electrical path provided between a battery and a load which is driven with the power of the battery, and a second switch for switching connection and disconnection of a second electrical path bypassing the first switch. The second switch, when the first switch is switched from a state in which the first electrical path is connected to a state in which the first electrical path is disconnected, places the second electrical path in a connected state for a certain period and then, after the period elapses, switches the state in which the second electrical path is connected to a state in which the second electrical path is disconnected.

86. 发明公开

EP4043967A1 CONTROL SYSTEM, AND CRANE 审中-实审
公开(公告)号：EP4043967A1
公开(公告)日：2022-08-17
申请号：EP20873427.7
申请日：2020-10-12
申请人： TADANO LTD.
发明人： MINAMI, Yoshimasa
IPC分类号： G05B11/32 , B66C13/22 , G05B13/02 , G05B13/04
摘要： This control system for controlling an actuator of a crane is provided with a signal processing unit for generating a signal related to a target operating amount of the actuator, a feedback control unit for controlling the actuator on the basis of the difference between the signal relating to the target operating amount, and a fed-back signal relating to the operating amount of the actuator, and a feed-forward control unit which controls the actuator on the basis of the signal relating to the target operating amount, in cooperation with the feedback control unit, and learns the characteristics of the actuator by adjusting a weighting factor on the basis of a teaching signal, wherein the signal processing unit converts an input signal into the signal relating to the target operating amount by removing a pulse-shaped component from the input signal.

87. 发明公开

EP4019453A1 WORK MACHINE 有权
公开(公告)号：EP4019453A1
公开(公告)日：2022-06-29
申请号：EP20854886.7
申请日：2020-08-21
申请人： TADANO LTD.
发明人： SHIRAI, Manato , NAGAHAMA, Kazu , ZUSHI, Masahide
IPC分类号： B66C23/693
摘要： Provided is a work machine that allows an improvement in the degree of freedom in terms of design around a telescopic boom and an increase in the reliability when the boom is telescoping. The work machine includes: a telescoping actuator that moves a first boom in the telescoping direction with respect to a second boom; an electrical drive source that is disposed in a movable portion of the telescoping actuator; a first fixing pin that connects the telescoping actuator and the first boom; a first connection mechanism that switches a connection state between the telescoping actuator and the first boom on the basis of the power of the electrical drive source; a second fixing pin that connects the first boom and the second boom; a second connection mechanism that switches a connection state between the first boom and the second boom on the basis of the power of the electrical drive source; and a torque limiter that is disposed between the electrical drive source and the first connection mechanism or the second connection mechanism, the torque limiter maintaining, at a predetermined value or less, a load acting on a mechanical element constituting a power transmission path from the electrical drive source.

88. 发明公开

EP3950563A1 CRANE CONTROL METHOD, AND CRANE 有权
公开(公告)号：EP3950563A1
公开(公告)日：2022-02-09
申请号：EP20779973.5
申请日：2020-03-27
申请人： TADANO LTD.
发明人： MINAMI Yoshimasa
IPC分类号： B66C23/00
摘要： The present invention addresses the problem of providing: a crane control method whereby shaking of a load can be suppressed when automatically transporting the load along a set transport path using a crane; and a crane that is controllable by this control method. The control method comprises: calculating a target transport time (Ti) of a load (W), transported by a crane (1), in a section defined by two passing points adjacent in a passing order; calculating, from a distance between the passing points and the target transport time (Ti), a target speed signal of the load (W) in the section; converting a stepped target speed signal, which connects the target speed signal of the section and a target speed signal of another section adjacent to the section, to a non-stepped target speed signal using a target value filter (F); and carrying out control on the basis of the non-stepped target speed signal.

89. 发明公开

EP3925919A1 LIFTING CONTROL DEVICE AND MOBILE CRANE 有权
公开(公告)号：EP3925919A1
公开(公告)日：2021-12-22
申请号：EP20755583.0
申请日：2020-02-14
申请人： TADANO LTD.
发明人： MINAMI Yoshimasa
IPC分类号： B66C13/46
摘要： Provided is a lifting control device that can quickly make lifting determinations while suppressing load vibration. The lifting control device D comprises: a boom 14 that is configured to be freely raised and lowered; a winch 13 to hoist and lower a suspended load via a wire rope 16; a load measurement means 22 to measure the load acting on the boom 14; and a controller 40 that controls the boom 14 and the winch 13, wherein when lifting a suspended load from the ground by winding up the winch 13, the controller 40 retains a maximum load value from a time series of load data as a variable, finds variations in the hoisting angle of the boom 14 on the basis of time variations in the maximum load value, and raises and lowers the boom 14 so as to compensate for the variation.

90. 发明公开

EP3915928A1 CRANE 审中-实审
公开(公告)号：EP3915928A1
公开(公告)日：2021-12-01
申请号：EP20744525.5
申请日：2020-01-21
申请人： TADANO LTD.
发明人： MINAMI Yoshimasa
IPC分类号： B66C13/00 , B66C13/22 , B66C13/48
摘要： The present invention addresses the problem of providing a crane capable of detecting a suspension location of a payload, in order to enable accurate positioning of a hook at the suspension location of the payload. This crane (1) comprises: a freely derricking boom (9) provided to a swivel (7); and a sub-hook block (11) and a sub-hook (11a) suspendedly provided from the boom (9). The crane also comprises: a boom camera (9b) capable of imaging a payload (W) that is to be carried by the crane (1); hook cameras (31) capable of imaging the payload (W) from different viewpoints than the boom camera (9b); and a control device (35) for controlling the crane (1). The control device (35) acquires images (s1)/(s2) obtained by imaging the payload (W) with the boom camera (9b) and the hook cameras (31), runs image processing on the images (s1)/(s2), and calculates a suspension location (Ag) of the payload (W).

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