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1. 发明专利

JP2002096731A MEASUREMENT PROBE FOR ELECTRICALLY MEASURING RAIL 失效
公开(公告)号：JP2002096731A
公开(公告)日：2002-04-02
申请号：JP2000291887
申请日：2000-09-26
申请人： HIOKI ELECTRIC WORKS , HIGASHI NIPPON RYOKAKU TETSUDO , KAWATETSU TECHNO RES KK
发明人： TOMIYAMA HIDEKI , ITO TETSUYA , KANARI SHOHEI
IPC分类号： G01R1/06 , B61K9/08 , B61K13/00 , G01R27/02
摘要： PROBLEM TO BE SOLVED: To provide a measurement probe for electrically measuring a rail, capable of surely and stably keeping electrical contact while reducing contact resistance by putting the measurement probe in contact at a constant pressure all times. SOLUTION: The measurement probe comprises a probe body 12 formed in an approximately sectional U-shape, consisting of a contact part 13 mounted on a top 32 of a rail 31 in positional relationship perpendicular to the longitudinal direction thereof and a pair of auxiliary supporting parts 14, 15 separately hung from the contact part 13 and opposed to both side faces 34 of the top 32 in the longitudinal direction, and a conductive screw bar 22 to be threaded and closely applied to a tapped hole 16 provided in at least one of the auxiliary supporting parts 14, 15 and adapted to be pressed against a side face 34 of the top 32. A tapped hole is also provided in the contact part 13 and the conductive screw bar can thus be threaded in press contact with a top face 33 of the top 32.

2. 发明专利

JP2001311742A MEASURING PROBE UNIT FOR ELECTRIC MEASUREMENT 失效
公开(公告)号：JP2001311742A
公开(公告)日：2001-11-09
申请号：JP2000130726
申请日：2000-04-28
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI , KOBAYASHI KENJI
IPC分类号： G01R1/06 , G01R27/02 , G01R31/28
摘要： PROBLEM TO BE SOLVED: To provide a measuring probe unit for electric measurement capable of performing accurate measuring work by bringing measuring probes into contact with an object to be measured composed of a large conductor while their positions are fixed at a predetermined interval without holding them with hands. SOLUTION: In the measuring probe unit for electric measurement having a plurality of measuring probes 11 connected electrically and individually by providing cables 52 individually between a measuring instrument 51 and them, each of the measuring probes 11 is provided with a conducting screw rod 18 which can come into contact with the object to be measured 101 composed of long and large conductor and be loaded freely across substantially upper half based on positional relation that it crosses the direction of length of the object to be measured 101 orthogonally and can come into pressure contact with a side face 103 in the direction of length of the object to be measured 101 freely by screw-fitting in and bringing into close adhesion with a female screw hole 14 vided in an opposing section to a side face 103 side.

3. 发明专利

JP2003172754A CIRCUIT ELEMENT MEASURING DEVICE 审中-公开
公开(公告)号：JP2003172754A
公开(公告)日：2003-06-20
申请号：JP2001375874
申请日：2001-12-10
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI
IPC分类号： G01R1/06 , G01R31/00
摘要： PROBLEM TO BE SOLVED: To provide a circuit element measuring device capable of setting a chip part easily and accurately, and effective for improvement of measurement accuracy and miniaturization. SOLUTION: A measuring mechanism 22 loaded on a base part 21 of a measuring device body 11 is constituted from one side measuring means 23 on the movable side and the other side measuring means 43 on the fixed side electrically contactable individually with one side end face and the other side end face of the chip part 101 positioned by being dropped into a groove part formed on the base part 21. One side measuring means 23 includes at least one side measuring part 24 equipped with one side measuring pin 25 arranged on the groove part with following motion executable against the biasing force of an internal spring at the artificial retreating time of a pin socket part 31 advancing or retreating along the groove direction of the groove part. The other side measuring means 43 is formed by including at least the other side measuring part 43 equipped with the other side measuring pin 45 positioned on the groove part by being energized by the internal spring so that its tip face abuts on the tip face of the one side measuring pin 25. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2000131337A MEASURING DEVICE 失效
公开(公告)号：JP2000131337A
公开(公告)日：2000-05-12
申请号：JP30389798
申请日：1998-10-26
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI
IPC分类号： H01R13/52 , G01R1/04
摘要： PROBLEM TO BE SOLVED: To prevent drop of measurement accuracy caused by sticking of water droplet to a main body side contact piece and a cable side contact piece and to prevent a failure caused by coming-in of the water droplet into a measuring device main body. SOLUTION: A measuring device 1 comprises a measuring device main body 3 provided with a main body side contact piece 13 and a measuring-device cable 2 provided with a cable side connector 4 comprising a cable side contact piece 5 capable of being fitted to the main body side contact piece 13. Here, a connector insert opening 14 for inserting the cable side connector 4 is formed at the measuring device main body 3, the cable side connector 4 is so configured that it contacts by surface to the inside wall which forms the connector insert opening 14, at engagement of both contact pieces 5 and 13, for closing the connector insert opening 14, and a cylindrical guide member 16 in which one of the contact pieces 5 and 13 is inserted is erected around the other of them.

5. 发明专利

JP2001311751A PROBE UNIT FOR FOUR-TERMINAL MEASUREMENT 失效
公开(公告)号：JP2001311751A
公开(公告)日：2001-11-09
申请号：JP2000131159
申请日：2000-04-28
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI , KOBAYASHI KENJI
IPC分类号： G01R1/073 , G01R27/02
摘要： PROBLEM TO BE SOLVED: To provide a probe unit for four-terminal measurement suitable for measuring the resistance of a measured object made of a large conductor by a four-terminal measuring method. SOLUTION: A Hi-side current feeding terminal section 12, a Hi-side voltage detecting terminal section 22, a Lo-side current feeding terminal section 32, and a Lo-side voltage detecting terminal section 42 are combined to form this probe unit for four-terminal measurement. The current feeding terminal section 12 and the voltage detecting terminal section 22 are arranged separately from each other at a fixed interval on one side base section 21 made of an insulating material and are integrated into a Hi-side terminal body 11. The voltage detecting terminal section 42 and the current feeding terminal section 32 are arranged separately from each other at a fixed interval on the other side base section 41 and are integrated into a Lo-side terminal body 31. The Hi-side terminal body 11 and the Lo-side terminal body 31 allow the Hi-side voltage detecting terminal section 22 and the Lo-side voltage detecting terminal section 42 to be freely installed face to face with respect to the measured object 51.

6. 发明专利

JPH11208699A HINGE AND CASE WITH TOP COVER USING THE SAME 失效
公开(公告)号：JPH11208699A
公开(公告)日：1999-08-03
申请号：JP3218598
申请日：1998-01-29
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI
IPC分类号： B65D43/16 , H05K5/03
摘要： PROBLEM TO BE SOLVED: To provide a case which can be provided at a low cost and in which a top cover can not be easily removed. SOLUTION: In the case 11 wherein a top cover 15 is mounted to a container body 12 through hinges 21, a rotation side hinge part 22 constituting the hinge 21 includes at least a rotation body part 23, an insertion groove part 27 having an introducing hole on one side of the part 23, and a bearing hole part which has a diameter equal to or larger than the groove width of the part 27 and communicates with the part 27 and the hinge part 22 is mounted to the cover 15. A supporting axis side hinge part 32 has a diameter equal to or larger than the groove width of the part 27 and includes at least a supporting axis part to rotatably support the hinge part 22 in a bearing hole part and a pair of supporting leg parts protruding to the left and right of the supporting axis part respectively and the hinge part 32 is mounted to the body 12 to axially support the hinge part 22.

7. 发明专利

JP2001311741A MEASURING PROBE UNIT FOR ELECTRIC MEASUREMENT 失效
公开(公告)号：JP2001311741A
公开(公告)日：2001-11-09
申请号：JP2000130368
申请日：2000-04-28
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI
IPC分类号： G01R1/06 , G01R27/02 , G01R31/28
摘要： PROBLEM TO BE SOLVED: To provide a measuring probe unit for electric measurement eliminating a necessity for holding a measuring probe with hand and performing accurate measuring work by fixing a position of the measuring probe and bringing it into contact with a measuring point of an object to be measured composed of a large conductor. SOLUTION: This measuring probe unit consists of a base part 11 having a recessed loading face 15 determined based on the relation with a cross sectional shape of the object to be measured 101 on a bottom face 14 side and loaded so as to cross the object to be measured 101 and the measuring probe 21 having a pressed and energized contact pin 24 and arranged in the base part 11. The measuring probe 21 is constituted such that the contact pin 24 protrudes from the recessed loading face 15 and is detachably arranged by providing a hole 16 for mounting measuring probe which passes through from substantially central section of an upper face 12a in the base part 11 to the recessed loading face 15.

8. 发明专利

JP2001281287A ELECTRIC FIELD INTENSITY MEASURING INSTRUMENT 失效
公开(公告)号：JP2001281287A
公开(公告)日：2001-10-10
申请号：JP2000091011
申请日：2000-03-29
申请人： HIOKI ELECTRIC WORKS
发明人： SATO MAKOTO , NAKAYAMA NAOKI , TOMIYAMA HIDEKI , MIZUNO ATSUSHI
IPC分类号： G01R29/08 , H04B17/00 , H04B17/23 , H04B17/318
摘要： PROBLEM TO BE SOLVED: To automatically measure the electric field intensity of a disturbing radio wave etc. SOLUTION: This instrument includes a receiving means 10 which receives a radio wave through an antenna, an A/D converting means 11 which converts the received radio wave into a digital value, a control means 12 which calculates the electric field intensity of the received radio wave, and an input means 13 which sets a decision time interval, a threshold, etc., in the control means 12; and the control means 12 compares the electric field intensity with the threshold value at decision time intervals and when the electric field intensity exceeds the threshold value, the control means calculates mean electric field intensity from electric field intensity values obtained from the point t1 of time to a point t2 of time when the electric field intensity becomes less than the threshold and also finds the elapsed time from the point t1 to the point t2 of time, so that the mean electric field intensity and elapsed time are displayed by a display means.

9. 发明专利

JP2001074774A HOUSING STRUCTURE OF PORTABLE MEASURING INSTRUMENT 失效
公开(公告)号：JP2001074774A
公开(公告)日：2001-03-23
申请号：JP24596999
申请日：1999-08-31
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI
IPC分类号： G01R1/06 , G01R1/04 , G01R15/12
摘要： PROBLEM TO BE SOLVED: To provide a housing structure for portable measuring instrument realizing reduction in thickness when the cover is closed while enhancing the degree of freedom. SOLUTION: The housing structure comprises a case body 13, an outer cover body 23 covering the opening face 13a of the case body 13, and an intermediate cover body 33 interposed between the case body 13 and the outer cover body 23 when the cover is closed. The intermediate cover body 33 has protrusions 38 projecting toward the case body 13 and/or the outer cover body 23 and being fitted in windows 30 made at the facing parts of the counterpart member when the cover is closed.

10. 发明专利

JP2001074773A PORTABLE MEASURING INSTRUMENT 失效
公开(公告)号：JP2001074773A
公开(公告)日：2001-03-23
申请号：JP24596099
申请日：1999-08-31
申请人： HIOKI ELECTRIC WORKS
发明人： TOMIYAMA HIDEKI
IPC分类号： G01R1/06 , G01R1/04 , G01R15/12 , G01R31/02
摘要： PROBLEM TO BE SOLVED: To eliminate the need for holding one test lead rod by a measuring instrument itself and unnecessary sagging of a cord at the time of measurement. SOLUTION: The portable measuring instrument comprises a case body 12, an outer cover 22, and an intermediate cover 32 provided, in the plane facing the outer cover 22, with a recess 35 for containing two test lead rods 41 and one or more protrusions 38 for winding the cord 45 of each test lead rod 41 at a part other than the containing recess 35. A holder 37 for holding one test lead rod 41 freely in provided on one side part 35a in the containing recess 35 of the intermediate cover 32 in the longitudinal direction and a cut 28 for leading out a part of one test lead rod 41 including the contact pin 44 thereof held by the holder 37 is provided at the side plate 24 part of the outer cover 22.

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