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    • 5. 发明专利
    • Hydraulic circuit
    • 液压回路
    • JP2007107607A
    • 2007-04-26
    • JP2005298881
    • 2005-10-13
    • Ishikawajima Constr Mach Co石川島建機株式会社
    • KIMURA KAZUHIRO
    • F15B11/17E02F9/22F15B11/02
    • PROBLEM TO BE SOLVED: To provide a hydraulic circuit which can easily change a hydraulic pressure source of a service port between a uniflow type and a confluence type and can prevent engine load from being increased when a direction control valve is at a neutral position. SOLUTION: The hydraulic circuit includes first, second and third pumps 14, 15, 16 each for delivering hydraulic oil, and the three-position six-port direction control valve 23 for manipulating an attachment which is incorporated in a hydraulic fluid feed system of the second pump 15. Both secondary ports except for a pressure fluid passing port of the direction control valve 23 are connected to the service port 22. The hydraulic circuit is provided with a flow switching valve 30 which can be alternatively set at a confluence position for communicating with the most downstream portion of a hydraulic fluid feed system of the third pump 16 to both primary ports except for a tank port of the direction control valve 23 and including a pressure fluid inflow port or at a uniflow position for communicating the most downstream portion of the hydraulic fluid feed system of the third pump to a hydraulic fluid tank 31. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种液压回路,其可以容易地改变在单向型和汇流型之间的维修口的液压源,并且当方向控制阀处于中性时可以防止发动机负载增加 位置。 解决方案:液压回路包括用于输送液压油的第一,第二和第三泵14,15,16;以及三位六端口方向控制阀23,用于操纵装在液压流体供给装置中的附件 第二泵的系统15.除了方向控制阀23的压力流体通过口之外的两个副端口连接到维修口22.液压回路设置有流量切换阀30,流量切换阀30可以交替地设定在汇合 用于与第三泵16的液压流体供给系统的最下游部分连通到除了方向控制阀23的罐口之外的两个主要端口并且包括压力流体流入端口或用于连通最多 第三泵的液压流体供给系统的下游部分到液压油箱31.版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Support structure of lower roller for crawler type working machine
    • CRAWLER型工作机的下辊支撑结构
    • JP2007022260A
    • 2007-02-01
    • JP2005205678
    • 2005-07-14
    • Ishikawajima Constr Mach Co石川島建機株式会社
    • URASHIMA TOSHIAKI
    • B62D55/14B62D55/30B62D55/32
    • PROBLEM TO BE SOLVED: To reduce the maintenance cost by improving working efficiency in maintenance and inspection of a lower roller and exchange of the lower roller. SOLUTION: A support shaft 14 of the lower roller 12 is supported by two roller support plates 13, 13A, a notch 13a is provided at the front and rear sides of the roller support plates 13, 13A, and a pair of horizontal guide members 11 having the notch 13 to be fitted are provided between an inside plate 6B and an outside plate 6A of a truck frame 6. The outside plate 6A of the truck frame 6 is provided with an opening part 6a wherein the roller support plates 13, 13A can be passed through, and the roller support plates 13, 13A are inserted sliding the guide member 11 and the notch 13a from the opening part 6a while the roller 12 is supported. After the roller support plate 13A of the inside is abutted to the inside plate 6B of the truck frame 6, the opening part 6a of the outside plate 6A is clogged by a pressing plate 15. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过提高下辊的维护和检查和下辊的更换的工作效率来降低维护成本。 解决方案:下辊12的支撑轴14由两个辊支撑板13,13A支撑,在辊支撑板13,13A的前侧和后侧设有切口13a,并且一对水平 具有待装配的切口13的导向构件11设置在卡车框架6的内侧板6B和外侧板6A之间。卡车车架6的外侧板6A设置有开口部6a,其中,辊支撑板13 ,13A可以通过,并且在支撑辊12的同时,辊支撑板13,13A插入从开口部6a滑动导向构件11和切口13a。 在内侧的辊支撑板13A抵靠在车架6的内侧板6B之后,外侧板6A的开口部6a被压板15堵塞。(C)2007,JPO&INPIT
    • 8. 发明专利
    • Ground leakage location probing method and apparatus
    • 地面泄漏位置探测方法和装置
    • JP2006194804A
    • 2006-07-27
    • JP2005008537
    • 2005-01-17
    • Ishikawajima Constr Mach Co石川島建機株式会社
    • KOBAYASHI SAKAE
    • G01R31/02
    • PROBLEM TO BE SOLVED: To solely, easily and quickly allow a worker to identify a location at which a ground leakage occurs.
      SOLUTION: A ground leakage probing apparatus is provided with: a ground leakage checking current carrying section for sequentially carrying a current to an output device connected to an output section of a PLC for controlling a sequence in a freshly-mixed concrete manufacturing plant, a motor connected to a power outputting section controlled by an output from the output section and an input device connected to an input section for 0.3 second so as to prevent their operations; a storage section for storing the device to which the current is carried when an input is detected at a ground leakage contact while the current is carried to the device; and a display section for identifying and displaying the devices stored in the storage section. The current is sequentially carried to all the devices in the plant for 0.3 second at the same voltage as a voltage during a normal operation. The device whose leakage current is detected by a ground leakage relay is identified as the ground leakage location when the current is carried.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了简单,容易和快速地允许工人识别发生接地泄漏的位置。 解决方案:地漏检测装置设有:接地泄漏检查电流承载部分,用于依次将电流连接到连接到PLC的输出部分的输出装置,用于控制新拌混凝土制造厂的序列 连接到由输出部分的输出控制的功率输出部分的电机和连接到输入部分的输入装置0.3秒以防止它们的操作; 存储部,用于在电流被传送到设备的同时,在接地漏电接触检测到输入时存储载入电流的装置; 以及用于识别和显示存储在存储部分中的设备的显示部分。 在正常操作期间,电流以与电压相同的电压顺序地传送到工厂中的所有器件0.3秒。 当漏电继电器检测到漏电流的器件被识别为电流携带时的接地泄漏位置。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Cab interference preventing device for mobile concrete pump having boom
    • 用于移动混凝土泵的CAB干扰防止装置
    • JP2006045898A
    • 2006-02-16
    • JP2004228088
    • 2004-08-04
    • Ishikawajima Constr Mach Co石川島建機株式会社
    • OKAWA SATOSHIUCHIDA TOSHIAKI
    • E04G21/04B60P3/00
    • PROBLEM TO BE SOLVED: To prevent a boom of a mobile concrete pump from interfering with a cab.
      SOLUTION: The mobile concrete pump having the boom is constructed by mounting a revolving frame 4 on a deck on the rear of the cab 1, and arranging the multi-stage boom 5 for supporting concrete feeding pipes 12, on the revolving frame. Then a support base 23 consisting of a laterally extending bar 24 and side bars 26 protruding diagonally rearward from both edges of the bar and each having a progressively declining upper surface, is arranged on a roof 1a of the cab 1. Further tape switches 27a, 27b are arranged on the bar 24 and the side bars 26 via cushioning members 28. When the multi-stage boom 5 is controlled to carry out forward falling operation or rotating operation, if the boom abuts on the tape switches 27a, 27b, a control section immediately halts contractive motion of a lower-stage boom derricking hydraulic cylinder 7 and rotary motion of the revolving frame 4, and therefore boom operation of the multi-stage boom 5 is immediately halted at the time of abutting on the tape switches 27a, 27b, to thereby prevent the boom from interfering with the cab 1.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:防止移动混凝土泵的吊杆干扰驾驶室。 解决方案:具有起重臂的移动混凝土泵通过将旋转框架4安装在驾驶室1的后部的甲板上,并将用于支撑混凝土输送管12的多级起重臂5布置在旋转框架上 。 然后,在驾驶室1的车顶1a上设置有由横向延伸的杆24和从杆的两个边缘向对角地突出并且具有逐渐下降的上表面逐渐下降的侧杆26的支撑基座23.另外的带开关27a, 27b通过缓冲构件28布置在杆24和侧杆26上。当多级起重臂5被控制以执行向下下降操作或旋转操作时,如果吊杆抵靠带开关27a,27b,则控制 立即停止下级起重臂升降液压缸7的收缩运动和旋转框架4的旋转运动,因此在与带开关27a,27b抵接时立即停止多级起重臂5的起重臂动作 ,从而防止吊杆与驾驶室1干扰。版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Attachment for boom swing type hydraulic shovel
    • 悬挂式液压滑块的附件
    • JP2006037393A
    • 2006-02-09
    • JP2004215810
    • 2004-07-23
    • Ishikawajima Constr Mach Co石川島建機株式会社
    • NAKANO KATSUMIOGATA ATSUSHI
    • E02F3/32
    • PROBLEM TO BE SOLVED: To provide an attachment for boom swing type hydraulic shovel capable of performing deep digging and having high stability in a horizontally protruded state.
      SOLUTION: This attachment 1 for boom swing type hydraulic shovel comprises a swing bracket 2, a lower boom 3, an upper boom 4, an arm 5 and a bucket 6. The upper boom 4 and the lower boom 3 are extended outward of a boom connecting pin 4a, the tip of the extension part 4b of the upper boom 4 is connected to the swing bracket 2 through a link rod 10, and the bottom side of an arm cylinder 8 is connected to the tip of the extension part 3b of the lower boom 3 through a pin 8a. The opening angle between the upper boom 4 and the lower boom 3 is set to be large when the lower boom is raised to the top and lowered to the bottom, and to be minimized in the middle of the both.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够进行深挖和在水平突出状态下具有高稳定性的吊臂摆动式液压铲的附件。 解决方案:用于吊臂摆动式液压铲的附件1包括摆动托架2,下起重臂3,上起重臂4,臂5和铲斗6.上起重臂4和下起重臂3向外延伸 一个起重臂连接销4a,上起重臂4的延伸部分4b的前端通过连杆10连接到摆动托架2上,并且臂缸8的底侧连接到延伸部分 3b的下臂3通过销8a。 当下悬臂升高到顶部并降低到底部时,上起重臂4和下起重臂3之间的打开角度被设定得较大,并且在两者的中间最小化。 版权所有(C)2006,JPO&NCIPI