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1. 发明专利

JP2003269514A VIBRATION CONTROLLING HYDRAULIC DAMPER 审中-公开
公开(公告)号：JP2003269514A
公开(公告)日：2003-09-25
申请号：JP2002070502
申请日：2002-03-14
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , KUWABARA HIDEKAZU , KOTAKE YUJI , SUZUKI TAKAYUKI , KURINO HARUHIKO
IPC分类号： F16F9/32
摘要： PROBLEM TO BE SOLVED: To provide a vibration controlling hydraulic damper that structurally avoids an overall form projecting in the direction perpendicular to a piston axis direction and avoids external exposure of a control valve device. SOLUTION: The vibration controlling hydraulic damper 100 interconnects two working chambers R1 and R2 formed on opposite sides of a piston 31 axially slidable in a cylinder body 10 via passages 12a, 12b, 15a, 14, 16a and 13a, and controls working fluid flowing in the passages by means of the control valve device Vo to damp a vibration of a structure. The two passages 12a and 12b in communication with the two respective working chambers R1 and R2 are opened to one axial end face of the cylinder body 10, the control valve device Vo is mounted detachably, and the passages 12a and 12b are connected to the control valve device Vo. A hollow coupling member 20 is coupled to the one axial end of the cylinder body 10 so as to house the control valve device Vo. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2001280393A HYDRAULIC DAMPER FOR DAMPING VIBRATION 失效
公开(公告)号：JP2001280393A
公开(公告)日：2001-10-10
申请号：JP2000094937
申请日：2000-03-30
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , AMANO KENICHI , KOTAKE YUJI , SEN SHII , SUZUKI TAKAYUKI , KURINO HARUHIKO
IPC分类号： F16F15/02 , F16F9/32 , F16F9/50 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To reduce oil replenishing work and inside air bleeding work by obviating removal of pressure sensors when the pressure sensors for measuring pressure of hydraulic pressure chambers run into trouble in a hydraulic damper for damping vibration. SOLUTION: This hydraulic damper for damping vibration is provided with a block having the first and second pressure sensors for respectively measuring the pressure of the first and second hydraulic pressure chambers in an upper part of a cylinder body. The block constitutes an outside surface of a bottom surface abutting to the cylinder body, an upper surface opposed to the bottom surface and a side surface for connecting the bottom surface and the upper surface. The first and second pressure sensors are installed on the side surface of the block. First and second installing holes connected to the first and second hydraulic pressure chambers are opened in the upper surface of the block. The first and second installing holes are respectively blocked up by an attachable plug member, and can install another pressure sensors corresponding to the first and second pressure sensors.

3. 发明专利

JP2000274555A OPENING AND CLOSING VALVE 失效
公开(公告)号：JP2000274555A
公开(公告)日：2000-10-03
申请号：JP7820899
申请日：1999-03-23
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , AMANO KENICHI , SAKAI MITSUO , KOTAKE YUJI , SEN SHII , KURINO HARUHIKO , SHIMIZU MIKI
IPC分类号： F16K31/122 , F16F9/34 , F16K17/10
摘要： PROBLEM TO BE SOLVED: To provide an opening and closing valve devised so that a main valve body does not work to open even in the case when pressure of working oil on the side of a large diametrical hole becomes higher than pressure of working oil on the side of a small diametrical hole in a valve opening state. SOLUTION: A small diametrical hole 12 and a large diametrical hole 14 are continuously provided in a valve main body 1 through a valve seat 16, and a main valve body 24 having a conical seating surface 24a to be seated on the valve seat 16 is fitted and inserted into the large diametrical hole 14. A working chamber 26 is formed on a back part of the main valve body 24, and the working chamber 26 and a first main channel 6 are connected to each other through a pilot valve 34. A first connecting passage 42 to connect the small diametrical hole 12 and the working chamber 26 to each other and a second connecting passage 56 to connect the large diametrical hole 14 and the working chamber 26 to each other are provided on the main valve body 24, a restrictor 52 and a first check valve 51 are arranged in the first connecting passage 42, and a second check valve 65 is arranged in the second connecting passage 56.

4. 发明专利

JP2003161381A OPENING/CLOSING VALVE 审中-公开
公开(公告)号：JP2003161381A
公开(公告)日：2003-06-06
申请号：JP2001358881
申请日：2001-11-26
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： F16K17/10 , F16K1/36 , F16K47/04
摘要： PROBLEM TO BE SOLVED: To prevent a valve from biting at a valve seat of a seated part in an opening/closing valve, and to suppress a drastic increase of a flow rate of a fluid flowing in an opening at the primary stage of an increase in area of the opening formed between the seated part and the valve seat. SOLUTION: In the opening/closing valve which is constituted in such a manner that a small diametral hole 77 and a large diametral hole 79 are continuously provided in a valve body 47 via the valve seat 81, and at the same time, a poppet valve element 51 having the seated part 87 capable of seating and separating to/from the valve seat 81 is freely slidably fitted and inserted into the large diametral hole 79 so as to make the space between the small diametral hole 77 and the large diametral hole 79 to communicate with each other or block, mutually the seated part 87 is made into a conical shape with a prescribed angle and the valve seat 81 is made into a stepped columnar shape, and at the same time, a flow rate regulating means (a variable throttle C), which is formed between the seated part 87 and the valve seat 81 and regulates the flow rate flowing in the opening at the primary stage of the increase in area of the opening in which the area is increased according to a separation degree from the seat, is provided. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2001193780A HYDRAULIC SEISMIC CONTROL DAMPER 失效
公开(公告)号：JP2001193780A
公开(公告)日：2001-07-17
申请号：JP2000005756
申请日：2000-01-06
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , HANJI MASAHIRO , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： F16F15/02 , F16F9/50 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To provide great damping force even in a working range where a piston works at a slow speed (oscillation with a small amplitude or a long cycle) by using a control valve. SOLUTION: A hydraulic seismic control damper comprises control valves 21, 22 provided in an oil passage P1 connecting both hydraulic chambers R1, R2 formed at both sides of a piston 13 reciprocated in a cylinder 11 for generating damping force and a pair of throttles 41, 51 provided in a pair of passages P2, P3 connecting both hydraulic chambers R1, R2 and the oil passage P1 and an accumulator 30, respectively, for permitting the flow of a hydraulic oil. Relief valves 42, 52 are provided in series to the throttles 41, 51 in passages P2, P3 so that no hydraulic oil can flow to the accumulator 30 until the pressure of the hydraulic oil in both hydraulic chambers R1, R2 and the oil passage P1 gets to a set value.

6. 发明专利

JP2001323961A HYDRAULIC DAMPER FOR VIBRATION CONTROL 失效
公开(公告)号：JP2001323961A
公开(公告)日：2001-11-22
申请号：JP2000141459
申请日：2000-05-15
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , SAKAI MITSUO , FUJISAKA MASAHIRO , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： E04H9/02 , F16F9/34 , F16F9/50 , F16F15/02 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To reduce the overall size of a hydraulic damper for vibration control by controlling the flow of working fluid between a first working chamber and a second working chamber by means of a single pilot-operated stop valve. SOLUTION: A pilot-operated stop valve 21 has in a valve body 47, a small-diameter hole 77 and a large-diameter hole 79 connected via a valve seat 81. A main valve element 51 with a seat surface 83 seated on the valve seat 81 is slidably fitted in the large-diameter hole 79. The small-diameter hole 77 and the large-diameter hole 79 are connected to a first working chamber 15 and a second working chamber 17 respectively At the back of the main valve element 51, an acting chamber 85 is formed, which is connected to the low-pressure side by a pilot passage 75 in which a pilot valve 55 is interposed. The main valve element 51 has a first pressure receiving surface S1 and a second pressure receiving surface S2 for respectively receiving the pressures of working fluid in the small-diameter hole 77 and the large-diameter hole 79 in the unseated direction. A restriction 61 and a first check valve 65 are interposed in series in a first connecting passage 62 connecting the small-diameter hole 77 and the acting chamber 85. A restriction 63 and a second check valve 67 are interposed in series in a second connecting passage 64 connecting the large-diameter hole 79 and the acting chamber 85.

7. 发明专利

JP2001193785A HYDRAULIC DAMPER 失效
公开(公告)号：JP2001193785A
公开(公告)日：2001-07-17
申请号：JP2000001578
申请日：2000-01-07
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , HANJI MASAHIRO , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： F16F15/02 , F16F9/18 , F16F9/34 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic damper having improved response to the closing operation of a switch valve being open. SOLUTION: Operating chambers 206, 208 are formed at both sides of a piston 204a sliding in a cylinder body. The operating chambers 206, 208 in a cylinder 204 are connected together via switch valves 2, 4 which open/close a pilot flow passage connected to an action chamber to be communicated or shut off by pilot valves 6, 8, so that vibration is damped by, for example, opening the switch valve 2 to absorb a hydraulic oil delivered from one operating chamber 206 into the other operating chamber 208. In this case, an introduction flow passage 56 is provided for introducing the hydraulic oil from the other operating chamber to the action chamber to close the switch valve 2. A check valve 65 is laid in the introduction flow passage 56 for restricting the flow out of the action chamber.

8. 发明专利

JP2003161379A SOLENOID VALVE 审中-公开
公开(公告)号：JP2003161379A
公开(公告)日：2003-06-06
申请号：JP2001358888
申请日：2001-11-26
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To prevent damage to constituents and the occurrence of a stroke sound of a solenoid valve without collision of constituents in the solenoid valve. SOLUTION: At the time of electrification of a solenoid 110, a valve body 125 engaging with a movable iron core 123 against the elastic forces of elastic bodies 127, 129 is made to move towards an actuated position, by attracting the movable iron core 123 to a fixed iron core 121 with attracting force obtained by its electrification. Thereby, flow passages 75, 76 are communicated or closed to communicate by the spool valve body 125. At the time of non-electrification of the solenoid 110, change characteristic lines of the elastic force and change characteristic lines to the movement magnitude of the valve body 125 and the movable iron core 123 are set up so as to cross within movable limit ranges of the valve body 125 and the movable iron core 123 in the solenoid valve which closes or communicates the passages with the valve body 125 by moving the valve body 125 together with the movable iron core 123 to a original position by elastic forces of the elastic bodies 127, 129. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2001279947A DAMPING HYDRAULIC DAMPER 失效
公开(公告)号：JP2001279947A
公开(公告)日：2001-10-10
申请号：JP2000091509
申请日：2000-03-29
申请人： TOYOOKI KOGYO KK , HITACHI METALS TECHNO LTD , KAJIMA CORP
发明人： ICHIKAWA NAOKI , HANJI MASAHIRO , KOTAKE YUJI , SEN SHII , SUZUKI TAKAYUKI , KURINO HARUHIKO , SHIMIZU MIKI , TAGAMI ATSUSHI
IPC分类号： E04B1/36 , E04H9/02 , F16F9/50 , F16F15/02 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To obtain a damping hydraulic damper for improving an open response of opening and closing valves opened and closed in accordance with connection/ cut-off of a pilot channel. SOLUTION: Operating rooms 206 and 208 are formed on both sides of a piston 204a sliding the inside of a cylinder body 204, the pilot channel connecting between both operating rooms 206 and 208 to an action room is connected through the opening and closing valves 2 and 3 opened and closed by connection/ cut-off of pilot valves 4 and 5, for example, the opening and closing valve 2 is opened to discharge hydraulic fluid from one operating room 206, and the hydraulic fluid is absorbed by the other operating room 208 to damp vibration. In that case, variable throttle valves 8 and 9 are provided to the pilot channel to adjust the lowering of the hydraulic fluid pressure in the action room, and the speed of the open response speed of the opening and closing valve 2 can be adjusted.

10. 发明专利

JP2005155718A Hydraulic damper for damping 有权
标题翻译：液压减震器
公开(公告)号：JP2005155718A
公开(公告)日：2005-06-16
申请号：JP2003392742
申请日：2003-11-21
申请人： Hitachi Metals Techno Ltd , Kajima Corp , Toyooki Kogyo Co Ltd , 日立機材株式会社 , 豊興工業株式会社 , 鹿島建設株式会社
发明人： ICHIKAWA NAOKI , KOTAKE YUJI , KURINO HARUHIKO
IPC分类号： F16F15/02 , F16F9/50 , F16F15/023
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic damper for damping capable of providing satisfactory damping action in the whole vibration external force region irrespective of strength of vibration external force.
SOLUTION: This hydraulic damper for damping is provided with a pilot operation control valve 20 for large load opened and operated when vibration external force by which load exceeding a set value acts is large and an opening and closing valve 30 for small load arranged in parallel with it and opened and operated when vibration external force by which load less than the set value acts is small in an oil passage for connecting both oil pressure chambers R1, R2 formed on both sides of a piston 13 reciprocating in a cylinder main body 11. Opening and closing operation of each valve 20, 30 is controlled by a control circuit ECU in accordance with vibration external force, and vibration external force is damped by flow of hydraulic fluid through each valve 20, 30.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于阻尼的液压阻尼器，其能够在整个振动外力区域中提供令人满意的阻尼作用，而与振动外力的强度无关。解决方案：该阻尼液压阻尼器设有先导操作控制阀20，用于在超过设定值作用的振动外力大的情况下大的负载打开和操作，并且用于小负载的开关阀30布置与在缸体主体中往复运动的活塞13的两侧形成的两个油压室R1，R2的油路连通的油路中的振动外力小于设定值的外力作用时，每个阀门20,30的打开和关闭操作由控制电路ECU根据振动外力控制，并且振动外力被液压流体通过每个阀门20,30的流动阻尼。 C）2005，JPO＆NCIPI

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