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1. 发明公开

EP1126087A1 HYDRAULIC CIRCUIT CONTROL DEVICE OF CONSTRUCTION MACHINERY 有权
标题翻译：液压回路的施工机械的控制装置
公开(公告)号：EP1126087A1
公开(公告)日：2001-08-22
申请号：EP00948253.0
申请日：2000-07-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： WATANABE, Hiroshi , OHIRA, Shuji , FUJISHIMA, Kazuo Shitina-Kandatsu-C-101 , OGURA, Hiroshi , HAGA, Masakazu , TOMITA, Sadahisa
IPC分类号： E02F9/20 , F15B11/08
CPC分类号： E02F9/2296 , E02F9/2203 , E02F9/2228 , F15B21/087
摘要： Whether a previously computed valve command value Y-1 is within a neutral zone ± α is determined. If the determination result is "Yes", processing to compute a valve command value for a neutral dead zone is executed. If the determination result is "No", processing to compute a valve command value for a driving zone is executed. In the latter case, by using a valve command value X and the previously computed valve command value Y-1, it is determined in which one of acceleration, deceleration/stop, and lever-reversed condition is the operating status, and a maximum setting rate in one of acceleration, deceleration/stop, and lever-reversed condition is computed from a corresponding function ΔY = fmax1(X), etc. Then, a control signal is computed while restraining a change rate of the operational signal to be kept not more than the computed maximum change rate, and a flow control valve 3 is controlled in accordance with the computed control signal. As a result, in a hydraulic drive system for controlling a flow control valve with an electrical operational signal to control the operation of an actuator, the flow control valve can be controlled at an optimum maximum change rate in any operating status of acceleration, deceleration/stop, and lever-reversed condition.

2. 发明授权

EP1126087B1 HYDRAULIC CIRCUIT CONTROL DEVICE OF CONSTRUCTION MACHINERY 有权
标题翻译：液压回路的施工机械的控制装置
公开(公告)号：EP1126087B1
公开(公告)日：2010-01-06
申请号：EP00948253.0
申请日：2000-07-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： WATANABE, Hiroshi , OHIRA, Shuji , FUJISHIMA, Kazuo Shitina-Kandatsu-C-101 , OGURA, Hiroshi , HAGA, Masakazu , TOMITA, Sadahisa
IPC分类号： E02F9/20 , F15B11/08 , E02F9/22
CPC分类号： E02F9/2296 , E02F9/2203 , E02F9/2228 , F15B21/087

3. 发明授权

EP1340858B1 CONSTRUCTION MACHINE WITH A DISPLAY UNIT 有权
标题翻译：与显示设备建筑机械
公开(公告)号：EP1340858B1
公开(公告)日：2013-09-18
申请号：EP01996652.2
申请日：2001-11-09
申请人： Hitachi Construction Machinery Co., Ltd
发明人： OGURA, Hiroshi , WATANABE, Hiroshi , FUJISHIMA, Kazuo Shitina-Kandatsu-C-101 , TOMITA, Sadahisa
IPC分类号： E02F9/26 , E02F9/22
CPC分类号： E02F9/26 , E02F9/2296

4. 发明授权

EP0276308B1 ULTRASONIC METHOD OF MEASURING DIMENSIONS OF FLAW IN SOLID MATERIAL 失效
标题翻译：超声波测量固体材料尺寸的超声波测量方法
公开(公告)号：EP0276308B1
公开(公告)日：1993-07-14
申请号：EP85905106.2
申请日：1985-10-11
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： MIYAJIMA, Takeshi 1801 Banchi , OGURA, Yukio Arakawa-hongo 1343-251 , TOMITA, Sadahisa
IPC分类号： G01N29/04
CPC分类号： G01N29/48 , G01N29/0645 , G01N29/07 , G01N29/11 , G01N29/30 , G01N29/4427 , G01N2291/02491 , G01N2291/0289 , G01N2291/044
摘要： Method of measuring dimensions of a flaw in a solid material by utilizing the ultrasonic waves, comprising steps of applying ultrasonic waves via a liquid to an object surface of a solid material, comparing sound pressure of a reflected wave from the object surface with that of a reflected wave from a flaw in the solid material, and determining the dimensions of the flaw by using the comparison value as an evaluation index. This method is capable of measuring the dimensions of a flaw in a part or a member of an electrical and mechanical apparatus nondestructively, accurately and quantitatively with ease in a very short period of time.

5. 发明授权

EP1092809B1 WORKING DEVICE OF CONSTRUCTION MACHINERY 有权
标题翻译：工程机械的工作单位
公开(公告)号：EP1092809B1
公开(公告)日：2008-12-24
申请号：EP00912954.5
申请日：2000-03-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TOMITA, Sadahisa , SUGIYAMA, Genroku , HAGA, Masakazu , SUZUKI, Ryohei , HASEGAWA, Toshio , TAHARA, Koji
IPC分类号： E02F9/26 , E02F9/24
CPC分类号： E02F9/24 , E02F9/26
摘要： A working device of construction machinery, wherein a recessed part (22a) is formed in an end face (22b) of a pin (22) installed in a boom (3), a case (21a) for an angle sensor (21) is disposed in the recessed part (22a), and a flange (218) for an input shaft (21b) projecting in the axial direction is installed projectingly from the case (21a) so that it surrounds the input shaft (21b) avoiding the movable range of a lever (23), whereby the amount of projection of the flange (218) can be increased over the amount of projection of an input shaft (21c) so as to improve the protective function of the input shaft (21b) by the flange (218).

6. 发明公开

EP1340858A1 DISPLAY DEVICE AND DISPLAY CONTROLLER OF CONSTRUCTION MACHINERY 有权
标题翻译：与显示设备建筑机械
公开(公告)号：EP1340858A1
公开(公告)日：2003-09-03
申请号：EP01996652.2
申请日：2001-11-09
申请人： Hitachi Construction Machinery Co., Ltd
发明人： OGURA, Hiroshi , WATANABE, Hiroshi , FUJISHIMA, Kazuo Shitina-Kandatsu , TOMITA, Sadahisa
IPC分类号： E02F9/26
CPC分类号： E02F9/26 , E02F9/2296
摘要： A display unit for a construction machine is provided which allow for an operator to easily set a target plane or area in works to be performed under automatic control, and to freely change the contents to be displayed regardless of whether the machine is under the automatic control, so that information which the operator wants to see can be promptly displayed.
A display 41 of a display unit 40 selectively displays a standard monitoring screen 60 for displaying attitude information of a body, an excavation setting screen 61 for displaying the setting states of depth and gradient of a target excavation plane for automatic control, and an excavation monitoring screen 62 for displaying, in enlarged scale, the relative position of a bucket relative to the target excavation plane set on the excavation setting screen. Each of those screens has a menu area 64 in which an item "SCREEN CHANGE" and items corresponding to associated screen information are set. A desired one of the items in the menu area 64 is selected by manipulating up and down selection keys 43a, 43b on an operating unit 43 to move a cursor in the menu area vertically, and the contents of the item displayed in reverse video is executed by depressing a decision key 43e. It is hence possible to easily set a target plane or area in works to be performed under automatic control, to freely change the contents to be displayed regardless of whether the machine is under the automatic control, and to promptly display information that the operator wants to see.

7. 发明公开

EP1092809A1 WORKING DEVICE OF CONSTRUCTION MACHINERY 有权
标题翻译： ARBEITSGERÄTEINER BAUMASCHINE
公开(公告)号：EP1092809A1
公开(公告)日：2001-04-18
申请号：EP00912954.5
申请日：2000-03-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TOMITA, Sadahisa , SUGIYAMA, Genroku , HAGA, Masakazu , SUZUKI, Ryohei , HASEGAWA, Toshio , TAHARA, Koji
IPC分类号： E02F9/26
CPC分类号： E02F9/24 , E02F9/26
摘要： A recessed portion 22a is formed at an end surface 22b of a pin 22 provided at a boom 3 to house a case 21a of an angle sensor 21 in the recessed portion 22a, a flange 218 projecting out from the case 21a along the direction of the axis of an input shaft 21b is projected so as to enclose the input shaft 21b outside the movement range of a lever 23. By projecting the flange 218 further out than the distance over which the input axis 21b projects out, the protection provided by the flange 218 for the input shaft 21b is enhanced more effectively.
摘要翻译：凹部22a形成在设置在起重臂3的销22的端面22b处，以将倾斜传感器21的壳体21a容纳在凹部22a中，凸缘218从壳体21a沿着输入轴21b的轴线突出，以将输入轴21b包围在杠杆23的运动范围之外。通过将凸缘218比输入轴线21b突出的距离更远地突出，凸缘提供的保护 218更有效地增强了输入轴21b。

8. 发明公开

EP1186720A1 TARGET EXCAVATION SURFACE SETTING DEVICE FOR EXCAVATION MACHINE, RECORDING MEDIUM THEREFOR AND DISPLAY UNIT 审中-公开
标题翻译：设备用于设置目标疏浚区地球运动的记录媒介中及显示单元
公开(公告)号：EP1186720A1
公开(公告)日：2002-03-13
申请号：EP00962975.9
申请日：2000-09-29
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： FUJISHIMA, Kazuo Shitina-Kandatsu-C-101 , WATANABE, Hiroshi , OGURA, Hiroshi Gurandohru-U-II-205 , TOMITA, Sadahisa
IPC分类号： E02F9/20 , E02F3/43 , E02F9/26
CPC分类号： E02F9/2296 , E02F3/437 , E02F9/2045 , E02F9/264
摘要： A setting/display processing section 11 of a control unit 9 comprises means 11b, 11c and 11d for computing the positional relationships among a machine body, an external reference and a target excavating surface by using a signal from a setting device 7 and signals supplied from angle sensors 8a, 8b when a front device is in a predetermined positional relationship relative to a laser reference surface, and means 11e, 11f, llg, 11h and 11j for executing picture processing by using the computed positional relationships, and then producing and outputting picture signals to display the positional relationships among the body, the external reference and the target excavating surface. A display device 12 displays an illustration of the body and lines representing respectively the external reference and the target excavating surface on a display section 20 in accordance with the computed positional relationships. As a result, when carrying out excavation continuously over a long distance along a surface at a predetermined depth, a target excavating surface can be easily set using an external reference and a setting error relative to the external reference is less apt to occur.
摘要翻译：控制单元9包括装置11b，11c和11d用于机器本体之间的计算的位置关系的设定/显示处理部11，对外部基准和目标通过使用来自设定器7的信号和来自信号提供挖掘面角度传感器8a，8b的当前部装置在预先确定的相对于激光基准面的位置关系的装置，以及11E，11F，ILG，11H和11J，用于通过使用所计算的位置关系执行画面处理，然后生成和输出婷图片信号来显示体，前述外部基准与目标挖掘面之间的位置关系。一种显示装置12个显示主体和分别表示所述外部基准与所述目标上的显示部分20中雅舞蹈与所计算的位置关系挖掘面线的图示。其结果是，当在沿着表面的长距离在预定深度处连续地进行挖掘，目标挖掘面可使用容易外部基准与相对于所述外部基准的设置误差不易发生设置。

9. 发明公开

EP0276308A1 ULTRASONIC METHOD OF MEASURING DIMENSIONS OF FLAW IN SOLID MATERIAL 失效
标题翻译：超声波清洁剂在食品中的用途。
公开(公告)号：EP0276308A1
公开(公告)日：1988-08-03
申请号：EP85905106.2
申请日：1985-10-11
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： MIYAJIMA, Takeshi 1801 Banchi , OGURA, Yukio Arakawa-hongo 1343-251 , TOMITA, Sadahisa
IPC分类号： G01N29/04
CPC分类号： G01N29/48 , G01N29/0645 , G01N29/07 , G01N29/11 , G01N29/30 , G01N29/4427 , G01N2291/02491 , G01N2291/0289 , G01N2291/044
摘要： Method of measuring dimensions of a flaw in a solid material by utilizing the ultrasonic waves, comprising steps of applying ultrasonic waves via a liquid to an object surface of a solid material, comparing sound pressure of a reflected wave from the object surface with that of a reflected wave from a flaw in the solid material, and determining the dimensions of the flaw by using the comparison value as an evaluation index. This method is capable of measuring the dimensions of a flaw in a part or a member of an electrical and mechanical apparatus nondestructively, accurately and quantitatively with ease in a very short period of time.
摘要翻译：系统包括样品（1），容器（2）中的液体（3），超声波换能器（4）和CRT显示器（10）。通过经由液体向物体表面（15）施加超声波并观察CRT上的反射波（6,7,8）来测量固体材料（1）中的缺陷。回波图案由发射脉冲（T）和来自物体表面（5），缺陷（F）和底部（B）的反射脉冲组成。通过比较顶表面反射（5）的声压和缺陷反射（F）的声压来估计缺陷的尺寸，同时根据反射脉冲的时间延迟来估计缺陷的位置。

10. 发明公开

EP0229837A1 METHOD OF MEASURING CONTACT STRESS IN CONTACT SURFACE BETWEEN SOLIDS BY ULTRASONIC WAVE 失效
标题翻译： MESSVERFAHREN DER KONTAKTSPANNUNG DURCH ULTRASCHALL AN DERKONTAKTOBERFLÄCHEZWISCHEN FESTSTOFFEN。
公开(公告)号：EP0229837A1
公开(公告)日：1987-07-29
申请号：EP85903043.9
申请日：1985-06-14
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： MIYAJIMA, Takeshi , OGURA, Yukio , SUZUKI, Yoshiaki , TOMITA, Sadahisa
IPC分类号： G01L1/00
CPC分类号： G01N29/227 , G01L1/255 , G01N29/041 , G01N29/0645 , G01N2291/015 , G01N2291/02827 , G01N2291/02872 , G01N2291/0421 , G01N2291/0422 , G01N2291/102 , G01N2291/2632
摘要： A method of measuring the contact stress in a contact surface (1) between solids of the same or different kinds by utilizing an ultrasonic wave, consisting of the steps of applying a surface wave to the contact surface (1) from the side of one end thereof so as to introduce the surface wave to the side of the other end of the contact surface (1) therethrough, and determining the contact stress on the basis of the sound pressure of this passed wave as an evaluation index, whereby the contact stress in the contact surface between the parts or members of a machine, which are in the static and dynamic state, can be measured non-destructively, easily, quantitatively, and very accurately by a real-time operation without being influenced by the shape, sizes and roughness of a surface to be flaw-detected, contact surface and bottom surface.
摘要翻译：一种通过利用超声波测量相同或不同种类的固体之间的接触表面（1）中的接触应力的方法，该超声波包括从一端侧向接触表面（1）施加表面波的步骤从而将表面波引导到接触表面（1）的另一端的侧面，并且基于该通过波的声压确定接触应力作为评价指标，由此，接触应力处于静态和动态的机器的部件或部件之间的接触表面可以通过实时操作非破坏性地，容易地，定量地和非常精确地测量，而不受形状，尺寸和尺寸的影响待检测的表面粗糙度，接触面和底面。

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