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    • 1. 发明专利
    • On-rail vehicle
    • 陆上车辆
    • JP2014189209A
    • 2014-10-06
    • JP2013067966
    • 2013-03-28
    • Tadano Ltd株式会社タダノ
    • KAWABUCHI NAOTOKIUCHI KUNIHIRO
    • B60F1/04B60S9/12
    • PROBLEM TO BE SOLVED: To provide an on-rail vehicle capable of surely overhanging a turntable, and capable of preventing damage to a lock mechanism and a lock release cylinder.SOLUTION: A lock release cylinder 70 operates a plunger 71 by a predetermined distance first by hydraulic pressure of a hydraulic fluid from a hydraulic pump P supplied via a directional control valve 41. An engaged state of a hook 81a and an engaging part 82 is released. Afterward, a rod 64 extending up to the inside of a cylinder of the lock release cylinder 70 is operated by the operation of the plunger 71, and a flow passage of a mechanical check valve 60 is opened. As a result of the operation, the hydraulic fluid is supplied to an extension inflow oil chamber 51 via the mechanical check valve 60, and the extension operation of an overhang cylinder 50 is started.
    • 要解决的问题:提供一种能够可靠地悬挂在转台上并且能够防止对锁定机构和锁定释放缸的损坏的轨道车辆。解锁:锁定释放缸70首先将柱塞71操作预定距离 通过来自经由方向控制阀41供给的液压泵P的液压油的液压。释放钩81a和接合部82的接合状态。 之后,通过柱塞71的动作来操作延伸到锁定释放缸70的气缸内部的杆64,并且打开机械止回阀60的流动通道。 作为操作的结果,液压流体通过机械止回阀60被供给到延伸流入油室51,并且启动伸出缸50的伸展操作。
    • 2. 发明专利
    • Mobile crane
    • 移动式起重机
    • JP2012051692A
    • 2012-03-15
    • JP2010195922
    • 2010-09-01
    • Tadano Ltd株式会社タダノ
    • KAWABUCHI NAOTO
    • B66C23/42B66C23/68
    • PROBLEM TO BE SOLVED: To provide a mobile crane which can have high hoisting capacity and carry out crane work even at the place of a small work radius, and easy in maintenance.SOLUTION: The mobile crane having a telescopic boom 5 attached to a traveling car body 1 to turn and rise includes an extension mast 10 having its base part supported with respect to the base end of a main boom 5A, and an extension rope 20 laid tense between the rope 20 and the tip of a telescopic boom 5 via the extension mast 10. The extension mast 10 includes a left mast 10L and a right mast 10R. The left mast 10L is a member extending obliquely left in the longitudinal direction of the main boom 5A. The right mast 10R is a member extending obliquely right in the longitudinal direction of the main boom 5A. The extension rope 20 includes a left rope 20L laid tense via the left mast 10L, and a right rope 20R laid tense via the right mast 10R. The left and the right ropes 10L and 10R are controlled tense by a winch 14, the vertical deflection of the boom is suppressed, and its horizontal deflection is prevented.
    • 要解决的问题:提供即使在小的工作半径的地方也能够具有高起重能力并进行起重机的移动式起重机,并且易于维护。 < P>解决方案:具有附接到行驶车体1上的伸缩吊杆5进行升降的移动式起重机包括:延伸杆10,其具有相对于主吊杆5A的基端支撑的基部;延伸绳 20经由延伸杆10在绳索20和伸缩臂5的末端之间放置张紧。延伸杆10包括左桅杆10L和右桅杆10R。 左桅杆10L是在主起重臂5A的纵向方向上向左斜向延伸的构件。 右桅杆10R是沿主吊杆5A的纵向方向倾斜向右延伸的构件。 延伸绳20包括经由左桅杆10L布置的左绳索20L和经由右桅杆10R布置的右绳索20R。 左右绳索10L和10R由绞盘14控制时,抑制起重臂的垂直偏转,防止水平偏转。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Crane
    • 起重机
    • JP2010228865A
    • 2010-10-14
    • JP2009078060
    • 2009-03-27
    • Tadano Ltd株式会社タダノ
    • FUJINO HIROYUKINAGAO MASATOKAWABUCHI NAOTO
    • B66C23/88
    • PROBLEM TO BE SOLVED: To provide a crane capable of reducing a load swing, while preventing backward overturning of a jib. SOLUTION: This crane 1 includes a boom 2, the jib 3 mounted derrickably at the distal end of the boom 2, a holding wire 41 for holding the jib 3 inclined to the front to lift the jib 3 backward, and an overturning prevention means 5 laid between the boom 2 and the jib 3 to drive the jib 3 to the front. In an overturning danger region where the tension T of the holding wire 41 becomes smaller than prescribed overturning allowable tension T1, the overturning prevention means 5 drives the jib 3 through a force compensating the insufficiency of the tension T to make the tension T substantially coincide with the overturning allowable tension T1. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供能够减小负载摆动的起重机,同时防止副臂的向后翻转。 解决方案:该起重机1包括起重臂2,起重臂2安装在起重臂2的前端,起吊杆3安装在用于保持前臂倾斜的起重臂3向后提升的保持线41上,并且翻转 布置在起重臂2和起重臂3之间的防止装置5,以将起重臂3驱动到前部。 在保持线41的张力T变得小于规定的翻转允许张力T1的翻转危险区域中,防翻倒装置5通过补偿张力T不足的力来驱动起重臂3,使张力T基本上与 翻转允许张力T1。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Hydraulic circuit of working vehicle
    • 车辆液压电路
    • JP2013068260A
    • 2013-04-18
    • JP2011206552
    • 2011-09-21
    • Tadano Ltd株式会社タダノ
    • KAWABUCHI NAOTOKIUCHI KUNIHIROTAMAI HISAO
    • F15B20/00B66F9/22B66F11/04
    • PROBLEM TO BE SOLVED: To provide a hydraulic circuit of a road-rail vehicle, which does not require connection of an emergency hose even when both of a main pump and an electric pump break down.SOLUTION: The hydraulic circuit includes a plurality of oscillating cylinders 120a to 120d of a work device of a road-rail vehicle, a main pump 100, an emergency electric pump 101, a manual pump 102, and a control valve device 300 for supplying pressure oil discharged from the main pump 100 to each of the oscillating cylinders 120a to 120d. A main pipe line 146 between the control valve device 300 and the main pump 100 is provided with a cutoff cock 140. A sub pipe line 145 connects the manual pump 102 to a portion between the cutoff cock 140 and the control valve device 300, and the sub pipe line 145 is provided with a connection cock 151.
    • 要解决的问题:为了提供一种道路车辆的液压回路,即使在主泵和电动泵两者都分解时也不需要紧急软管的连接。 解决方案:液压回路包括道路车辆的作业装置的多个摆动缸120a至120d,主泵100,应急电动泵101,手动泵102和控制阀装置300 用于将从主泵100排出的压力油提供给每个摆动缸120a至120d。 控制阀装置300和主泵100之间的主管线146设置有切断旋塞140.副管路145将手动泵102与切断旋塞140与控制阀装置300之间的部分连接, 子管道145设置有连接旋塞151.版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • Iron wheel rocking lock device of rail and road dual mode work vehicle
    • 铁路车轮摇摆装置和道路双模式工作车辆
    • JP2012187985A
    • 2012-10-04
    • JP2011052274
    • 2011-03-10
    • Tadano Ltd株式会社タダノ
    • KIOKA KENICHIKAWABUCHI NAOTOTAMAI HISAOSHIN KAZUYAOSHIMA MASANORIUEDA TAKESHI
    • B60F1/04
    • PROBLEM TO BE SOLVED: To solve the problem that, when a rail road vehicle is driven with four iron wheels, it is effective to install right and left iron wheels of either front wheel or rear wheel side in a rockable manner in a see-saw form in order to prevent derailment, however, a working range at on-rail work becomes small, since a work vehicle is actually supported on three points.SOLUTION: In the rail and road dual mode work vehicle including tire wheels 12 for road driving, and four iron wheels 31 and 32 for rail driving, on which right and left iron wheels 32 and 32 of either front wheel of rear wheel side are attached to each of right and left end sections of the rocking frame 4 pivotally supported under a vehicle frame 11 so as to be freely rocked in vertical direction, a rocking lock means 5 is provided for locking a rocking frame between the vehicle frame 11 and a rocking frame 4 so as not to rock to the vehicle body. The working range at on-rail work (work vehicle fall-down prevention performance) is made larger, by locking (four points support) rocking of the rocking frame 4 by the rocking the lock means 5 at the on-rail work.
    • 要解决的问题:为了解决当用四个铁轮驱动铁路车辆车辆的问题时,将前轮或后轮侧的左右铁轮以可摆动的方式安装在 跷跷板形式为了防止脱轨,然而,在轨工作的工作范围变小,因为在三点实际上支持了一个工作车辆。 解决方案:在包括用于道路驾驶的轮胎车轮12和用于轨道驱动的四个铁轮31和32的轨道和道路双重作业车辆中,后轮的前轮的左右铁轮32和32 侧部安装在摇摆框架4的左右两端部,该摆动框架4的左右端部可枢转地支撑在车架11的下方,以便在垂直方向上自由摇动,提供摇摆锁定装置5,用于将摇摆框架锁定在车辆框架11 和摆动框架4,以便不摇晃到车身上。 通过在轨上工作时通过摇动锁定装置5锁定(四点支撑)摆动框架4的摇摆,使轨道上作业(作业车辆落下防止性能)的工作范围更大。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Hydraulic circuit structure of steering arrangement
    • 液压电路结构转向装置
    • JP2010115986A
    • 2010-05-27
    • JP2008289327
    • 2008-11-12
    • Tadano Ltd株式会社タダノ
    • NAGAO MASATOKAWABUCHI NAOTOYOSHIDA HISAFUMI
    • B62D7/14B62D5/07B62D5/09
    • PROBLEM TO BE SOLVED: To propose a hydraulic circuit structure of a steering arrangement capable of certainly inhibiting the occurrence of a skew state of a vehicle to ensure its stable travel. SOLUTION: In a front wheel steering state where a rear side directional control valve 62 is set in a neutral position, third and fourth supply and discharge oil passages 36, 37 are connected to a drain channel 23 on a side closer to the rear side directional control valve 62 than a double pilot check valve 5. With this configuration, even if leak oil is caused at the rear side directional control valve 62 and a vehicle is steered to reduce the pressure in an extension oil chamber or a compression oil chamber of third and fourth steering cylinders 3, 4, the leak oil is discharged to the side of the drain channel 23 without flowing into the third or fourth supply and discharge oil passages 36, 37, and therefore an occurrence of a situation is inhibited where rear wheels 53, 54 are steered by an enclosure of the leak oil in the extension oil chamber or the compression oil chamber of the third and fourth steering cylinders 3, 4 to make the vehicle skew, thereby ensuring the stable travel of the vehicle. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提出一种能够肯定地抑制车辆的歪斜状态的发生以确保其稳定行驶的转向装置的液压回路结构。 解决方案:在后侧方向控制阀62设定在中立位置的前轮转向状态下,第三和第四供油排出油路36,37在靠近 后方方向控制阀62比双先导式止回阀5。利用这种构造,即使在后侧方向控制阀62处引起泄漏油并且车辆被转向以减小延伸油室或压缩油中的压力 第三和第四转向缸3,4的腔室,泄漏油被排放到排水通道23的侧面,而不会流入第三或第四供排油道36,37,因此禁止出现这种情况, 后轮53,54通过第三和第四转向缸3,4的延伸油室或压缩油室中的泄漏油的外壳转向,以使车辆偏斜,从而确保稳定的行驶 l的车。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Charging pump circuit of closed circuit
    • 封闭电路充电泵电路
    • JP2009197817A
    • 2009-09-03
    • JP2008036872
    • 2008-02-19
    • Tadano Ltd株式会社タダノ
    • KAWABUCHI NAOTO
    • F15B11/08F16H61/40F16H61/4104F16H61/4139F16H61/448
    • PROBLEM TO BE SOLVED: To provide a charging pump circuit capable of constantly and appropriately maintaining an hydraulic oil amount in a closed circuit. SOLUTION: The charging pump circuit of the closed circuit is equipped with the closed circuit 21 capable of driving a hydraulic motor 4 by hydraulic oil from a first hydraulic pump P1, a second hydraulic pump P2 for replenishing the hydraulic oil to the closed circuit 21 according to leakage of the hydraulic oil from the closed circuit 21, and a third hydraulic pump P3 for replenishing an insufficient amount of hydraulic oil replenishment by the second hydraulic pump P2, and is constituted so that when at least the second hydraulic pump P2 does not follow to replenish the hydraulic oil to the closed circuit 21, the third hydraulic pump P3 supplies the hydraulic oil to the closed circuit 21. According to this structure, even when the leakage amount of the hydraulic oil from the hydraulic motor 4 exceeds the discharge flow rate of the second hydraulic pump P2 and the leakage amount cannot be fully replenished by the discharge flow rate from the hydraulic pump P2, the leakage amount can be positively replenished by supply of the hydraulic oil from the third hydraulic pump P3 to the closed circuit 21 and an appropriate output characteristic of the hydraulic motor 4 can be secured. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够不断适当地保持闭路中的液压油量的充电泵回路。 解决方案:封闭回路的充电泵电路配备有能够通过来自第一液压泵P1的液压油驱动液压马达4的闭合回路21,用于将液压油补充到闭合的第二液压泵P2 电路21根据来自闭路回路21的液压油的泄漏,以及第三液压泵P3,用于补充由第二液压泵P2补充不足的液压油,并且构成为,至少第二液压泵P2 不将液压油补充到闭路21,第三液压泵P3将液压油供给闭路21.根据该结构,即使来自液压马达4的液压油的泄漏量超过 第二液压泵P2的排出流量和泄漏量不能完全补充来自液压泵P2的排出流量,泄漏量ca 通过从第三液压泵P3向闭合回路21供给液压油可以正确地补充,并且可以确保液压马达4的适当的输出特性。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Track work vehicle
    • 履带车
    • JP2008110848A
    • 2008-05-15
    • JP2006295492
    • 2006-10-31
    • Tadano Ltd株式会社タダノ
    • KAWABUCHI NAOTOOTANI MASATO
    • B66F7/24B61D15/00B61D15/02B66F9/075
    • PROBLEM TO BE SOLVED: To provide a track work vehicle capable of providing a highly accurate and highly reliable support state, by determining extension quantities of jack devices, based on the positions of track traveling wheels. SOLUTION: Since this track work vehicle has the jack device 8 and 9 arranged on the front, rear, right and left sides of the track work vehicle Z, a support state detecting means 16 detecting a support state by the track traveling wheels 12 and 13 of the track work vehicle Z and a jack extension regulating means 101 regulating extension operation of the jack devices when detecting an unsupported state of the track traveling wheels by the support state detecting means, the track work vehicle Z is always supported by the jack devices at work, and the support state of the track work vehicle Z is stabilized, and high reliability is secured in the work. Since the extension quantity of the jack devices is determined based on the position of the travel traveling wheels, a correlation between the track traveling wheels and a track R can be accurately determined after installing the jack deices, and reliability in support performance of the track work vehicle is improved. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过基于轨道行驶轮的位置来确定千斤顶装置的延伸量来提供能够提供高精度和高度可靠的支撑状态的履带作业车辆。 解决方案:由于该轨道作业车辆具有布置在履带作业车辆Z的前,后,右和左侧的千斤顶装置8和9,所以支撑状态检测装置16检测轨道行进轮的支撑状态 轨道作业车辆Z的12,13以及由支承状态检测机构检测轨道行进轮的不受支撑状态时,限制千斤顶装置的伸展动作的千斤顶延伸调节机构101,轨道作业车辆Z始终由 千斤顶装置工作,并且轨道作业车辆Z的支撑状态稳定,并且在工作中确保高可靠性。 由于千斤顶装置的伸出量是根据行进行驶轮的位置确定的,因此可以在安装千斤顶设计之后,准确地确定轨道行进轮与轨道R之间的相关性,并且可靠地实现轨道作业的支持性能 车辆得到改善。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Hydraulic cylinder damage preventing circuit for working machine
    • 液压缸损坏预防工作机电路
    • JP2008075703A
    • 2008-04-03
    • JP2006253536
    • 2006-09-19
    • Tadano Ltd株式会社タダノ
    • KAWABUCHI NAOTO
    • F15B20/00F15B1/02
    • PROBLEM TO BE SOLVED: To provide a hydraulic cylinder damage preventing circuit for a working machine, wherein flow-out operating oil is returned to a tank with no labor for dealing with the flow-out operating oil, while avoiding the spill-out of the operating oil flowing out of a damage preventing relief valve in spite of an attitude change of a hydraulic cylinder. SOLUTION: The circuit comprises the hydraulic cylinder 40 attachable/detachable to/from the working machine for receiving outer force in the elongating direction when mounted, a self seal coupling 52 mounted in a supply/discharge oil path to/from a cylinder side oil chamber 53 and a rod side oil chamber 51 of the hydraulic cylinder 40, and a pilot check valve 50 mounted in an oil path communicating the rod side oil chamber 51 of the hydraulic cylinder 40 with the self seal coupling 52. The damage preventing relief valve 60 is mounted in an oil path 61 branching from the oil path 55 and communicating the rod side oil chamber 51 of the hydraulic cylinder 40 with the pilot check valve 50. An accumulator 63 is mounted in a relief oil flow-out side oil path 62 of the damage preventing relief valve 60. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种用于工作机械的液压缸损坏防止电路,其中,在不产生溢出操作油的情况下,流出的操作油返回到罐中而不用处理流出的操作油, 除了液压缸的姿态变化之外,从防止溢流阀流出的工作油。 解决方案:该电路包括液压缸40,该液压缸40可安装在工作机械上,用于在安装时接收沿伸长方向的外力;安装在供给/排出油路中的自密封联轴器52与气缸 液压缸40的侧油室53和杆侧油室51以及安装在油路中的导向止回阀50,该油路将液压缸40的杆侧油室51与自密封联轴器52连通。防止损伤 安全阀60安装在从油路55分支并将液压缸40的杆侧油室51与导向止回阀50连通的油路61中。蓄压器63安装在浮油流出侧油 防止溢流阀60的路径62。版权所有(C)2008,JPO&INPIT