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1. 发明专利

JPH09119834A APPARATUS AND METHOD FOR MEASUREMENT OF CONDUIT 失效
公开(公告)号：JPH09119834A
公开(公告)日：1997-05-06
申请号：JP27734995
申请日：1995-10-25
申请人： RAITO KOGYO KK
发明人： MORITA KEN , HASHIMOTO TAKAMASA
IPC分类号： E02B9/06 , E02F5/10 , F16L1/038 , G01C15/00
摘要： PROBLEM TO BE SOLVED: To obtain an apparatus and a method which are excellent in a time-dependent characteristic and which can perform a measurement without generating an error due to an environment by a method wherein light is received through a rotating plate having a slit and a light-receiving position is computed on the basis of angles of rotation or the like until the light is received and while the light is being received. SOLUTION: A last part 3 which comprises a light source 32, a head part 4 which comprises a light-receiving sensor 42 and a lights-shielding part 2 which has a rotating plate 24 comprising a slit are coupled by a first coupling member 22 and the like. Then, light from the light source 32 is shone at a sensor 42 through the slit. Then, angles of rotation until the sensor 42 receives the light since a starting point on the rotating plate 24 is brought closest to a guide mark 12 and while the light is being received are measured, and the position of a point in which a line connecting the light source 32 to the sensor 42 is crossed with a virtual face on which the rotating plate 24 exists is computed. Then, a conduit computing unit 6 computes the coordinates of the sensor 42 on the basis of the coordinates of the light source 32, on the basis of the coordinates of a conduit 11 in the rotating plate 24 and on the basis of the direction of the mark 12 as viewed from the light source 32. In the following, whenever a procedure progresses, the same procedure is repeated, and the conduit 11 is found on the basis of the obtained coordinates and on the basis of a distance from an opening end.

2. 发明专利

JPH0914932A DUCT LINE MEASURING DEVICE AND METHOD 失效
公开(公告)号：JPH0914932A
公开(公告)日：1997-01-17
申请号：JP16340295
申请日：1995-06-29
申请人： RAITO KOGYO KK
发明人： MORITA KEN
IPC分类号： G01B11/24 , G01B11/245
摘要： PURPOSE: To measure even a duct line having a bent part by retaining two connection members at a connection part which is supported by a centerizer for positioning the center axis on the center axis of a flexible tube. CONSTITUTION: Rays of light 15 and 16 are applied in the direction of light reception parts 2 and 3 on the center axis from laser light sources 17 and 18 provided near the center of a connection part 11. Two-dimensional light reception sensors 22 and 32 are fixed to the other edge of connection members 12 and 13 being present in the light reception parts 2 and 3 in the direction for receiving the rays of light 15 and 16. When the sensors 22 and 32 receive the rays of light 15 and 16, they output a signal corresponding to the coordinates of the light reception point determined by x and y axes which have an origin on the center axis of the connection members 12 and 13 and are predetermined on the light reception surface. When a flexible tube 4 is rectilinear, the coordinates of two light reception points both indicate an origin. However, when the flexible tube 4 is bent, the coordinates of the two light reception points deviate from the origin and outputs coordinates related to the flexible tube 4.

3. 发明专利

JPH08313251A MEASURING-SYSTEM CALIBRATION APPARATUS AND METHOD OF MEASURING HOLE BEND 失效
公开(公告)号：JPH08313251A
公开(公告)日：1996-11-29
申请号：JP11667295
申请日：1995-05-16
申请人： RAITO KOGYO KK
发明人： MORITA KEN
IPC分类号： E21B47/02 , E02D7/14 , G01C7/06 , G01C9/00 , G01C9/06
摘要： PURPOSE: To measure, with high accuracy and in a short time, the hole bend of a hole which has been excavated by using an excavating apparatus. CONSTITUTION: A measuring-system calibration apparatus which comprises a cylindrical body 3, an inclination measuring means 4 and an azimuth measuring means is used, and a probe 1 is held inside the cylindrical body 3. The inclination with reference to the vertical of the central axis of the probe 1 and the azimuth of the inclination are measured by using a sensor 2. In addition, by using the inclination measuring means 4 and the azimuth measuring means 5, the inclination with reference to the vertical of the central axis of the cylindrical body 3 and the azimuth of the inclination are measured. Then, measured values are compared with measured values. A calibration expression which calibrated the inclination with reference to the vertical of the central axis of the probe 1 and the azimuth of the inclination to the inclination with reference to the vertical of the central axis of the cylindrical body 3 and the azimuth of the inclination is computed. While the probe 1 is being moved inside a tube 6 to be measured, the hole bend of the tube 6 to be measured is measured by using the sensor 2, the measured value of the hole bend is calibrated by the calibration expression, and a calibrated hole bend is obtained.

4. 发明专利

JPH08302682A MULTI-SHAFT EXCAVATING DEVICE AND TORSION SENSING METHOD FOR OBLONG EXCAVATION HOLE FORMED BY MULTI-SHAFT EXCAVATING DEVICE 失效
公开(公告)号：JPH08302682A
公开(公告)日：1996-11-19
申请号：JP10833995
申请日：1995-05-02
申请人： RAITO KOGYO KK
发明人： ISOBE KINJI , MORITA KEN
IPC分类号： E02D7/14
摘要： PURPOSE: To measure torsion of an oblongly excavated hole by calculating the torsional angle of the hole using signals given by an azimuth meter and a non-touch type object sensor installed at the tip of one excavating shaft. CONSTITUTION: A non-touch type object sensor 3 is installed on a recess 12 provided at the tip of one of a plurality of excavating shafts 1 laid in line. An azimuth meter 4 measures the angle formed by the direction of the sensor 3 viewed from the center of the excavating shaft to the reference direction toward the center of the on-the-ground termination of adjoining excavating shaft 1. The signal emitted when the sensor 3 is positioned the closest to the adjoining shaft 1. When the output of the sensor 3 maximizes, the azimuth meter 4 emits azimuth, and a oblongly excavated hole torsional angle calculating means 5 indicates the torsional angle of an oblongly excavated hole.

5. 发明专利

JPH1114356A THREE-DIMENSIONAL POSITION DETECTING METHOD 失效
公开(公告)号：JPH1114356A
公开(公告)日：1999-01-22
申请号：JP18027697
申请日：1997-06-23
申请人： RAITO KOGYO KK
发明人： MORITA KEN
IPC分类号： G01C7/00 , G01B11/26 , G01B21/00 , G01B21/22 , G01C15/00
摘要： PROBLEM TO BE SOLVED: To provide a three-dimensional position detecting method by which a position of a tip part of a hole drilling rod can be accurately detected even if a magnetic material exists in the vicinity of the tip part of the hole drilling rod and a position of the tip part of the hole drilling rod can also be accurately detected even if the tip part of the hole drilling rod becomes deep in the ground. SOLUTION: In this method, a bending angle of a hole drilling rod 1 is measured by using strain gauges 51 and 52 stuck on a surface of a cylindrical object 5 formed of an elastic body to connect a tip part 3 and a reference part 4, and an operation is performed on the bending direction of the hole drilling rod 1 expressed by a fixed coordinate system by an (x) axis accelerometer 41 and a (y) axis accelerometer 42, and an inclination of the tip part 3 is measured by an accelerometer 31 arranged in the (z) axis direction of the tip part 3. An operation is performed on coordinates expressed by a fixed coordinate system XYZ of a tip point A by a predetermined distance, coordinates by expressing respective ones of an intermediate point C and a tip point A, a bending angle and an inclination of the tip part 3 expressed by the fixed coordinate system XYZ, and and a three-dimensional position of the tip point A is detected by sequentially repeating this process.

6. 发明专利

JPH07128052A METHOD AND APPARATUS FOR MEASURING CURVED BORE IN ROTARY BORING 失效
公开(公告)号：JPH07128052A
公开(公告)日：1995-05-19
申请号：JP27535693
申请日：1993-11-04
申请人： RAITO KOGYO KK
发明人： MORITA KEN
IPC分类号： E21B47/0228 , G01C7/06 , G01C9/00 , G08C17/04 , G08C19/00 , E21B47/022
摘要： PURPOSE:To provide a method and apparatus for measuring curved bore in rotary boring in which the curved bore can be measured constantly in real time even for a plurality of drilling rods. CONSTITUTION:A head rod 4 is bonded with means for detecting a curved bore signal and transmitting a signal by noncontact signal transmission system, e.g. electromagnetic induction system. A noncontact power supply/signal transmission means 2 for feeding power by noncontact power transmission system, e.g. an electromagnetic induction system, and transmitting/receiving a signal is suspended from the top 6 of a rotary boring machine through a feeding/ hoisting means 3. During an interval when the rotary boring operation is continued, the means 2 is fed downward to the vicinity of the means 3 in order to measure the curved bore.

7. 发明专利

JPH1088969A PIPELINE MEASURING DEVICE 失效
公开(公告)号：JPH1088969A
公开(公告)日：1998-04-07
申请号：JP26384896
申请日：1996-09-13
申请人： RAITO KOGYO KK
发明人： MORITA KEN , HASHIMOTO TAKAMASA
IPC分类号： E21D9/093 , E21D9/06 , G01C15/00 , G01C19/00
摘要： PROBLEM TO BE SOLVED: To provide a pipeline measuring device which can measure the pipeline at real time of excavation, by providing a gyroscope to be provided in a flexible pipe for excavating underground, an X-axis deflection meter, a Y-axis deflection meter, a distance meter, a pipeline computing means for computing the pipeline of flexible pipe and a driving means for preventing the rotation of gyroscope. SOLUTION: A pipeline measuring device main part 10 provided in a flexible pipe is moved forward with the advance of excavation. The main part 10 has a gyroscope 3, a X-axis deflection meter 4, a Y-axis deflection meter 5, a pipeline computing means 7 and a driving means 8. The driving means 8 hole the posture of the gyroscope 3 or the like so as to prevent the generation of error of the output of the gyroscope 3 during the excavation. The pipeline computing means 7 computes a pipeline 2 on the basis of the output signal from the gyroscope 3, the X-axis deflection meter, the Y-axis deflection meter and a distance meter. Consequently, pipeline can be measured at real time during the excavation or after a step for a very short time.

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