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1. 发明专利

JP2012043998A Compound type magnetic shield method of disturbance magnetic field and structure 有权
标题翻译：电磁场和结构的复合型磁屏蔽方法
公开(公告)号：JP2012043998A
公开(公告)日：2012-03-01
申请号：JP2010184215
申请日：2010-08-19
申请人： Kajima Corp , 鹿島建設株式会社
发明人： HIRANO HIROYUKI , NIINO TOSHIFUMI , UJIGAWA SATOSHI , KARIKOMI MASANORI
IPC分类号： H05K9/00 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To provide a compound type magnetic shield method of a disturbance magnetic field and a structure thereof, capable of preventing degradation in shield performance even if a shield target position is away from a sensor position.SOLUTION: An axis line M vertical to the arrival direction of an arrival disturbance magnetic field Bo is estimated on a predetermined target position P within a space R to be shielded. Further, a group 5 of an annular magnetic plate 4 is arranged in a cylinder along the outer edge of the space R on a plurality of flat planes Q, being parallel with a predetermined interval d and being intersected with the axis line M, and compensating magnetic field generating coils 12a and 12b are installed around the target position P on the inside or outside of the cylindrical magnetic plate group 5. A magnetic sensor 14 capable of detecting an internal magnetic field Be whose phase difference δ is within a tolerable range relative to the target position P, is provided at a distant position S in the cylindrical magnetic plate group 5. The compensating magnetic field of the coils 12a and 12b is controlled according to the output of the sensor 14 to reduce the internal magnetic field Be at the target position P. It is preferred that the target position P is at the center in the direction of the axis line M of the cylindrical magnetic plate group 5, and that a length L of the cylindrical magnetic plate group 5 in the direction of the axial line M is twice or more a diameter D of the annular magnetic plate 4.
摘要翻译：要解决的问题：提供一种干扰磁场的复合型磁屏蔽方法及其结构，即使屏蔽目标位置远离传感器位置，也能够防止屏蔽性能的劣化。解决方案：在待屏蔽的空间R内的预定目标位置P上估计垂直于到达扰动磁场Bo的到达方向的轴线M. 此外，环状磁性板4的组5沿着多个平面Q的空间R的外缘在圆筒内配置，与预定间隔d平行并且与轴线M相交，并且补偿磁场产生线圈12a和12b围绕圆柱形磁板组5的内侧或外侧的目标位置P安装。磁传感器14能够检测相位差δ在相对于目标位置P设置在圆柱形磁板组5中的远处位置S.线圈12a和12b的补偿磁场根据传感器14的输出被控制，以将目标位置P内的内部磁场Be减小到目标位置目标位置P优选为圆筒状磁板组5的轴线M方向的中心，圆柱体的长度L 轴向线M方向上的磁性板组5是环形磁性板4的直径D的两倍或更多倍。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JPH09280000A VENTILATION SYSTEM IN TUNNEL 失效
公开(公告)号：JPH09280000A
公开(公告)日：1997-10-28
申请号：JP9645496
申请日：1996-04-18
申请人： KAJIMA CORP
发明人： FUJII YOSHIHISA , TOKAJI SHINICHI , TSUYUKI KENICHIRO , KARIKOMI MASANORI
IPC分类号： E21F1/00 , F24F7/06
摘要： PROBLEM TO BE SOLVED: To automatically control the air quantity of a ventilating fan for good working environment in accordance with total measurement of site working environment in an underground and a tunnel. SOLUTION: In a ventilation system 1, a fan is provided in a pit mouth 5 for a tunnel 3 to be controlled with a motor (a variable rotating speed) 13. An air pipe 11 is provided from the fan 7 to a working place 9. A moving vehicle 23 is provided with an environment measuring sensor 25, a running sensor, a three-dimensional gyro and an A/D converter for measurement results to be transmitted by a wireless transmitter 27. Measurement values are received by a wireless receiver to totally analyze positional and environmental data with a computer, so that the rotating speed of the motor 13 and the air quantity of the fan 7 are controlled.

3. 发明专利

JPH04160306A WATER JET-TYPE ULTRASONIC DISTANCE MEASURING APPARATUS 失效
公开(公告)号：JPH04160306A
公开(公告)日：1992-06-03
申请号：JP28350490
申请日：1990-10-23
申请人： KAJIMA CORP
发明人： TSURUTA MASAHIRO , YOKOYAMA MITSURU , HARADA MINORU , OOTA KATSUYA , KARIKOMI MASANORI
IPC分类号： G01B17/00 , G01S15/08 , G01S15/88
摘要： PURPOSE:To form a long water column without mixed bubbles under restriction of undesired reflecting waves, thereby to improve the measuring accuracy, by forming a part upstream of a jet port in the inner wall face of a nozzle chip to be a recessed curved face which is concentric with the jet port and terminates at the jet port. CONSTITUTION:A nozzle chip 30 has a flow passage 4 formed thereinside by an inner wall face 41 which is gradually reduced in diameter towards a circular jet port 40 of a small diameter at an exit end from an entrance end of a large diameter thereof. A main body 2 of a conical nozzle holds the chip 30 at an end thereof where the diameter is reduced. An ultrasonic transmitter 10 is provided confronting to the chip 30 in the main body 2. An upstream part of the jet port 40 of the inner wall face 41 is a recessed curved face which is concentric with the jet port 40 and terminates at the jet port 40. More preferably, the upstream part of the jet port 40 of the inner wall face 41 of the chip 30 is a part of a spherical face. Accordingly, undesired reflecting waves are restricted as well as noises. Moreover, undesired reflection is avoided, and ultrasonic energy sent to the water column is increased thereby to improve the S/N. At the same time, a long water column is projected without bubbles mixed. Thus, the measuring accuracy is improved.

4. 发明专利

JPH07144112A AIR PURIFIER AND ATTACHMENTS FOR OF THE SAME 失效
公开(公告)号：JPH07144112A
公开(公告)日：1995-06-06
申请号：JP32133593
申请日：1993-11-25
申请人： KAJIMA CORP
发明人： IMOO MAKOTO , OOTA KATSUYA , KARIKOMI MASANORI
IPC分类号： B01D46/42 , B01D46/10 , F24F7/06
摘要： PURPOSE:To use jet stream energy of purifying air as suction force, to increase the sucked quantity of contaminated air and also to improve directivity in the suction direction. CONSTITUTION:In an air purifier in which a suction port 3 is provided in a purifier body 1 at its one outer surface, a slit 13 orthogonal to the axis lying at right angles to this one outer surface is provided in the purifier body 1 at its other outer surface. Air sucked from the suction port 3 is blown off from the slit 13, to form a blow-off air curtain A parallel to the one outer surface. Attachments form a connecting duct connected to a blow-off port and a blow-off duct communicating with the connecting duct. The blow-off air curtain A is formed on the outer surface of the blow-off duct by blowing off the air from the slit.

5. 发明专利

JPH0783000A COLLECTION OF PARTICULATE MATTER IN TUNNEL FACE 失效
公开(公告)号：JPH0783000A
公开(公告)日：1995-03-28
申请号：JP23011193
申请日：1993-09-16
申请人： KAJIMA CORP
发明人： IMOO MAKOTO , KARIKOMI MASANORI , OOTA KATSUYA
IPC分类号： E21B21/00 , E21F5/20 , E21C7/02
摘要： PURPOSE:To promote dust absorbing performance by forming a spiral air current turning along side walls of a tunnel in a face section and, at the same time, absorbing the air current in a suction port provided on the axis thereof. CONSTITUTION:An exhaust blower 5 and an air blower 9 are operated, and a spiral curve C is formed of turning force by an air current B blown from an air-pipe 8 and absorption force by an suction port 4. After that, the air-pipe 8 and suction port 4 are so arranged that the front end of the spiral curve C comes near particulate matter A generated in a face 2. The particulate matter having a high density is caught in the spiral curve C and is absorbed with the suction port 4, and it is conveyed to the outside of a tunnel through a dust collector 6. According to the constitution, the particulate matter can be collected in a state of a high density before it is spread around a working area and, at the same time, safety can be promoted, it can be efficiently collected with a simple equipment, and costs can be reduced.

6. 发明专利

JPH06341300A DUST RECOVERING DEVICE FOR TUNNEL EXCAVATION 失效
公开(公告)号：JPH06341300A
公开(公告)日：1994-12-13
申请号：JP13184193
申请日：1993-06-02
申请人： KAJIMA CORP
发明人： IMOO MAKOTO , OOTA KATSUYA , KARIKOMI MASANORI
IPC分类号： E21B21/00 , E21F5/20 , E21C7/00
摘要： PURPOSE:To recover dust not to be diffused in a tunnel after an excavation by arranging an air feed blower and a dust collector at the tip section of an excavator boom via an air circuit. CONSTITUTION:An air feed blower 5 and a dust collector 6 are operated at the time of the excavating work of a tunnel, and a vortex generator 4 is set on a boom so that the tip of the spiral vortex B formed by the vortex generator 4 is positioned at the position where dust A is generated on the working face 2. The generated spiral vortex B forms the negative-pressure field at the center section of the vortex B and the pressurized field at the outer periphery of the vortex B, and the air near the vortex B has a strong stream toward the center of the vortex B. Dense dust is collected into the dust collector 6 from a suction port 11a, and no dust is diffused in the tunnel. The dust generated on the working face can be recovered in the high-density state before being diffused into the work atmosphere field.

7. 发明专利

JPH0251010A WATER JET TYPE ULTRASONIC DISTANCE MEASURING METHOD 失效
公开(公告)号：JPH0251010A
公开(公告)日：1990-02-21
申请号：JP20021588
申请日：1988-08-12
申请人： KAJIMA CORP
发明人： TSURUTA MASAHIRO , HARADA MINORU , YOKOYAMA MITSURU , IMOO MAKOTO , KARIKOMI MASANORI
IPC分类号： G01B17/00
摘要： PURPOSE:To enhance cutting accuracy by measuring a cutting depth in real time by a method wherein a water jet is emitted to a cut groove while an ultrasonic wave is transmitted and the time up to the reception of a reflected pulse is measured to calculate a distance. CONSTITUTION:A constant amount of tap water having constant pressure is supplied to the chamber 4 to a water jet nozzle 1 and a water jet J2 is emitted to a cut groove B and an ultrasonic pulse is oscillated to the water jet J1 thereof from a submerged ultrasonic pulse transmitter-receiver 5. This pulse is propagated through the water jet J2 to be reflected from the bottom part of the groove 5 with which the jet J2 collides and again propagated through the jet J2 to be received by the transmitter-receiver 5. At this time, an oscillation pulse C and a receiving pulse (echo)D are displayed on the oscilloscope 6a of an ultrasonic cut depth measuring device 6. The time T from the pulse C to the pulse D is multiplied by the preliminarily measured underwater speed of an ultrasonic wave and, from the value 1/2 of said product, the distance from the transmitter-receiver 5 to a base line E, that is, the surface of a body A to be cut is subtracted to calculate the depth of the groove 5 in real time. A cut depth H is displayed on recording paper 7a as a recording line F.

8. 发明专利

JPH09242500A ON-VEHICLE TYPE WORKING ENVIRONMENT MEASURING SYSTEM 失效
公开(公告)号：JPH09242500A
公开(公告)日：1997-09-16
申请号：JP5433996
申请日：1996-03-12
申请人： KAJIMA CORP
发明人： FUJII YOSHIHISA , TOKAJI SHINICHI , TSUYUKI KENICHIRO , KARIKOMI MASANORI
IPC分类号： E21F17/00 , E21F1/00
摘要： PROBLEM TO BE SOLVED: To measure many types of measurement items in a short time at a dense measurement point in a wide working site. SOLUTION: When running and measurement are started, data from a three- dimensional gyro 17, an axle rotation sensor 19, a propeller wind velocity meter 21, a heated wire wind velocity meter 23, an absolute temperature sensor 25, a light transmissivity view sensor 27, a dust concentration sensor 29, a temperature sensor 31, a gas sample tube 33 are incorporated in a personal computer 3. The personal computer 3 finds a true measurement point in a tunnel by using data from the three-dimensional gyro 17 and the axle rotation sensor 19, finds a true tunnel passing wind velocity by using data from the axle rotation sensor 19, the propeller wind velocity meter 21 and the heated wire wind velocity meter 23 and displays the dirstribution of dust, gas and wind velocity in the tunnel on a monitor screen 5.

9. 发明专利

JPH07225041A METHOD AND APPARATUS FOR FORMING ARTIFICIAL TORNADO 失效
公开(公告)号：JPH07225041A
公开(公告)日：1995-08-22
申请号：JP3778494
申请日：1994-02-10
申请人： KAJIMA CORP
发明人： IMOO MAKOTO , OOTA KATSUYA , KARIKOMI MASANORI
IPC分类号： F24F7/08 , F24F9/00 , F24F13/08
摘要： PURPOSE:To eliminate hanging down of an air blow-off pipe, etc., to a lower space, simplify a structure, restrict blow-off pressure loss small, and improve the formation efficiency of a turning air stream. CONSTITUTION:Blow-off air is collided with a collision plate 43 to form a surface-shaped air stream B and a turning air stream C is formed with a plurality of the surface-shaped air streams B in a predetermined direction. Spiral artificial tornados D are formed by sucking air located in the vicinity of the center of the turning air stream C. An apparatus 47 therefor includes a plurality of blow-off outlets 39 disposed on the same flat plane 33, a collision plate 43 with which a jet from the blow-off outlet 39 is collided, and a suction inlet 35 disposed on the same flat plane 33 as the blow-off outlet 39 for sucking air in the vicinity of the center of the turning air stream C.

10. 发明专利

JPH0763378A ARTIFICIAL AQUIFER HEAT STORAGE SYSTEM 失效
公开(公告)号：JPH0763378A
公开(公告)日：1995-03-07
申请号：JP21024293
申请日：1993-08-25
申请人： KAJIMA CORP
发明人： FUJII YOSHIHISA , OOTA KATSUYA , KARIKOMI MASANORI , TOKAJI SHINICHI
IPC分类号： F24F5/00
摘要： PURPOSE:To store heat in a large size in the case of air conditioning of a building or a local cooling and heating by installing an artificial aquifer surrounded at a bottom and sides with a water impermeable layer and filled with small stones directly under a basement of a large-scale building, and providing at its one end with a water supply tube and at the other with a water output tube. CONSTITUTION:An artificial aquifer 1 is installed directly under a basement of a large-scale building, small stones are densely filled therein, and its bottom and sides are waterproofed by a clay layer 2. A water supply tube 3 is laid at a primary side of the artificial aquifer 1, and a water output tube 4 is laid at a secondary side. Warm heated by a heat source 7 is supplied to the aquifer 1 via the tube 3, output by the tube 4 of the secondary side after a retention time is lapsed, its heat is supplied to an air conditioner facility 6, a heat demand ground 8 via a circulation pump 5 to become a low temperature, and again returned to the source 7. In the case of cooling, an operation is entirely reverse to the above operation. Thus, a decrease in a heat storage efficiency is reduced to effectively store the heat.

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