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1. 发明专利

JP2010223257A SCREW COMPONENT 审中-公开
公开(公告)号：JP2010223257A
公开(公告)日：2010-10-07
申请号：JP2009068490
申请日：2009-03-19
申请人： NITTO SEIKO KK
发明人： SAKAMOTO HIROYUKI
IPC分类号： F16B25/04 , F16B5/02 , F16B25/00
摘要： PROBLEM TO BE SOLVED: To obtain a screw component which accurately secures set axial force without an increase in screwing torque and minimizes the generation of molding chips even at re-screwing work. SOLUTION: In the screw component keeping a screw thread 10 on a leg 3. In a cross section orthogonal to a ridgeline 21 of the screw thread 10, a following flank angle (α/2) and leading flank angle (α/2) on a screw thread base side are equal to each other up to a prescribed height (h) from a valley part 11. A following flank surface 14 is steep from the prescribed height (h) to the ridgeline 21, which is made smaller than the following flank angle (α/2). A ridgeline 20 having a second flank angle (β) of an obtuse angle larger than a first flank angle (α) is formed on the thread ridgeline side. Since the steep following flank surface 14 and a first leading flank surface 13 are respectively connected to the ridgeline 20, large axial force is generated at the completion of screwing, thereby realizing firm fastening. COPYRIGHT: (C)2011,JPO&INPIT

2. 发明专利

JP2003225837A AUTOMATIC SCREWING EQUIPMENT 审中-公开
公开(公告)号：JP2003225837A
公开(公告)日：2003-08-12
申请号：JP2002023992
申请日：2002-01-31
申请人： NITTO SEIKO KK
发明人： SAITO OSAMU , SUGANO TOYOAKI , SAITO MASAYUKI
IPC分类号： B25J13/08 , B23P19/06
摘要： PROBLEM TO BE SOLVED: To provide automatic screwing equipment enabling the correction of the displacement of a screwing point and obtain accurate screwing. SOLUTION: This equipment takes a photo of the whole image of a work piece when a robot 2 performs screwing work by positioning a screwing tool 3 to a plurality of screwing points on the work piece one by one, and determines coordinates of the specified screwing points. Based on the coordinates of each screwing point, the robot 2 is controlled, and the screwing tool 3 is positioned to each screwing point. It enables the screwing tool 3 to be positioned correctly to a screwing point which is displaced from a proper position due to the displacement of a work piece or the like and screwing to be properly performed. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2003194610A DEPOSIT DETECTOR AND CLEANER FOR MASS FLOWMETER 审中-公开
公开(公告)号：JP2003194610A
公开(公告)日：2003-07-09
申请号：JP2001390344
申请日：2001-12-21
申请人： NITTO SEIKO KK
发明人： NOGUCHI SHOICHI , HIROSE KIYOSHI
IPC分类号： G01F15/12 , B08B3/04 , B08B9/02 , G01F1/84 , G01N9/00
摘要： PROBLEM TO BE SOLVED: To provide a deposit detector for detecting the deposit amount of a deposit on the pipe inner-wall face of a measuring part when the measuring part is cleaned at the time of finishing measurement, and a cleaner. SOLUTION: Since the density of fresh water is calculated based on vibration of a bent pipe 2c when fresh water is supplied and the density of the fresh water is compared with the density of the fresh water preliminarily stored, and the deposit amount of the deposit on the bent pipe inner-wall face is detected based on a difference between the both, the deposit on the inner-wall face of the bent pipe 2c is surely detected, and a cleaning degree of the pipe inner-wall face is grasped numerically. Because a cleaning liquid supplying part 4 is connected to the deposit detector 3, a cleaning liquid is supplied to wash the bent pipe 2c repeatingly when the deposit amount exceeds a prescribed value, so as to be able to remove surely the deposit on the inner-wall face of the bent pipe 2c. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2003166516A CROSS RECESSED HEAD SCREW 审中-公开
公开(公告)号：JP2003166516A
公开(公告)日：2003-06-13
申请号：JP2001367291
申请日：2001-11-30
申请人： NITTO SEIKO KK
发明人： NAKANO TOMOHIRO
IPC分类号： F16B23/00
摘要： PROBLEM TO BE SOLVED: To provide a cross recessed head screw which accurately obtains a preliminarily set screwing torque without slipping of dry babbitt out of a driving hole. SOLUTION: A driving hole 10 is constituted of an engaging groove 11 in which an engaging blade 21 is fitted, and an engaging face 14 on which the base of a dry babbitt 20 is fitted. The engaging groove 11 is radially formed from the center of the head 2. The width of the outer peripheral end side of the engaging groove 11 is formed so that the width of the outer peripheral end side is narrow at the fastening direction side and wide at the releasing direction side, and the structure is constituted so that the outer peripheral side of the engaging blade 21 comes into contact with the engaging face 13 of the fastening direction side or has a little clearance when the dry babbitt 20 is fitted. Owing to this cross recessed head screw having such a structure, a come out phenomenon is hardly brought at the completion of fastening work even if the screw is fastened, using dry babbitt ordinarily used. Hence, a screw- fastening torque is accurately obtained and further variation of screw-fastening torque is eliminated and frequency of detective products decreases. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003155110A PART FEED DEVICE 审中-公开
公开(公告)号：JP2003155110A
公开(公告)日：2003-05-27
申请号：JP2001352087
申请日：2001-11-16
申请人： NITTO SEIKO KK
发明人： MURAKADO HIROSHI , UMEHARA YUKIHIRO , KAWABE OSAMU
IPC分类号： B65G47/14 , B65G47/08
摘要： PROBLEM TO BE SOLVED: To provide a part feed device capable of accurately and stably feeding parts to a working machine. SOLUTION: This part feed device comprises a drum hopper 9 capable of storing a plurality of parts such as screws, roller shafts 15 and 15 disposed at specified intervals, parallel with each other, and aslant at specified angles so that parts supplied from the drum hopper 9 can be supported and capable of conveying the supported parts by the rotation thereof by the driving of a motor 3, and pitch adjusting shafts 17 and 18 installed continuously with the roller shafts 15 and 15 and having spiral grooves 17a and 18a formed so that parts can be supportedly fitted to the circular surface thereof. The parts supported by the roller shafts and conveyed are supportedly fitted into the spiral grooves 17a and 18a of the pitch adjusting shafts 17 and 18, and conveyed along the spiral grooves by the rotation of the pitch adjusting shafts. Thus the parts can be conveyed with the intervals of the parts positioned at a specified interval up to a part departure position set on the pitch adjusting shafts.

6. 发明专利

JP2003144813A APPARATUS FOR INJECTION FLOCCULANT AUTOMATICALLY 审中-公开
公开(公告)号：JP2003144813A
公开(公告)日：2003-05-20
申请号：JP2001344192
申请日：2001-11-09
申请人： NITTO SEIKO KK , KANKYO GIJUTSU KAIHATSU KK
发明人： FUJII TETSUO , NOGUCHI SHOICHI
IPC分类号： G01N9/00 , B01D21/30 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To provide a flocculant automatically injecting apparatus for calculating the injection amount of a flocculant most suitable to the turbidity of a solid foreign matter-mixed liquid such as turbid water and injecting the calculated amount of the flocculant. SOLUTION: The injection amount of the flocculant most suitable to the turbidity of a prescribed range of each sample of the turbid water is obtained and stored as data preliminarily. The mass of an outflow pipe 4b of a mass flow meter 4 full of the turbid water is calculated from the vibration of the pipe 4b generated when the turbid water is made to pass through the pipe 4b, the mass and density of the turbid water are obtained from the calculated mass of the pipe 4b and the turbidity of the turbid water is then obtained from the calculated density. The injection amounts of the flocculant corresponding to the calculated turbidity are called from the preliminarily stored data and the most suitable injection amount is calculated by interpolation or extrapolation. As a result, the flocculant of the amount most suitable to the turbidity of the turbid water can be injected, only clear water containing no solid foreign matter can be discharged to rivers and the excess flocculant is neither mixed with clear water nor discharged uselessly.

7. 发明专利

JP2002365484A DEVICE AND METHOD FOR ASSEMBLING MULTI-CORE RIBBON FIBER CONNECTOR 失效
公开(公告)号：JP2002365484A
公开(公告)日：2002-12-18
申请号：JP2001174680
申请日：2001-06-08
申请人： NITTO SEIKO KK
发明人： KAWASAKI TOKIO
IPC分类号： G02B6/40
摘要： PROBLEM TO BE SOLVED: To provide a device and method for very simply and surely assembling a multi-core ribbon fiber connector that is compact as well as superior in strength. SOLUTION: The invention is for assembling a multi-core ribbon fiber connector by supporting each optical element of each multi-core ribbon fiber by using the pitch adjusting jig of the assembling device to stabilize the pitch and by positioning and arranging this pitch-stabilized optical element in its arranging groove formed in the connector by using the positioning means of the assembling device. In this case, in the optical element arranging groove, the optical fiber elements of the multi-core ribbon fiber are arranged so that the different optical elements are adjacent to each other.

8. 发明专利

JP2002363960A PENETRATION TEST METHOD AND MACHINE 失效
公开(公告)号：JP2002363960A
公开(公告)日：2002-12-18
申请号：JP2001174678
申请日：2001-06-08
申请人： NITTO SEIKO KK
发明人： HAYASHI YOSHIHIRO , YASUEDA MASAAKI , SHIOMI MITSUNORI
IPC分类号： E02D1/02 , G01N3/40 , G01N29/14
摘要： PROBLEM TO BE SOLVED: To provide a penetration test machine and method capable of surely hearing and recording sound propagating through a penetration rod in a penetration test. SOLUTION: This penetration test machine is provided with a sound detecting means 10 capable of detecting the sound (acoustic signal) propagating through the penetration rod 7 when penetrating the penetration rod 7 into the ground, and the sound detecting means 10 detects the sound propagating through the penetration rod 7. The sound detected by the sound detecting means 10 is transmitted to a sound processing part 12 and outputted to a headphone 15 therefrom via an output part 14. A worker wearing the headphone 15 can thus surely hear and record the sound propagating through the penetration rod 7.

9. 发明专利

JP2002295436A INSERT NUT 失效
公开(公告)号：JP2002295436A
公开(公告)日：2002-10-09
申请号：JP2001100928
申请日：2001-03-30
申请人： NITTO SEIKO KK
发明人： ADACHI RYUSUKE , OTSUKI RYUICHI
IPC分类号： F16B37/04 , F16B37/02
摘要： PROBLEM TO BE SOLVED: To provide an insert nut, which achieves coming-off protecting effect and rotation protecting effect after it is assembled in a subject member to be fastened, and which can be assembled even to a thin subject member. SOLUTION: This insert nut is assembled with the subject member to be provided for engagement with a screw. It comprises a nut part 3 in which the screw can be engaged, leg parts 4 and 4 continuously provided with the nut 3 to be inserted along a hole in the subject member, and lock claws 5 and 5 provided on the leg parts 4 and 4 to elastically get in contact with the subject member for biting the subject member as the screw is engaged with the nut part 3. This insert nut is composed of plate material having elasticity. Width of a rectangular flange part 2 continuously formed with the nut part 3 is set to be a nominal diameter of the screw engaged with the nut part 3 added by twice or four times the plate thickness of the plate material.

10. 发明专利

JP2002168217A SCREW TO PREVENT UNLOCKING 失效
公开(公告)号：JP2002168217A
公开(公告)日：2002-06-14
申请号：JP2000363555
申请日：2000-11-29
申请人： NITTO SEIKO KK
发明人： UENO YOSHIMITSU , KUNIMATSU MASATOMO
IPC分类号： F16B23/00
摘要： PROBLEM TO BE SOLVED: To provide a screw to prevent unlocking making impossible to engage into an engaging groove by a commercial-type screwdriver bit, thereby making impossible to easily remove a part. SOLUTION: This screw, having a head and a shank, forms the engaging groove 12 in the radial direction and a connecting wall 16. The connecting wall 16, to which a guide wall 23 formed between the driving claw of the screwdriver bit contacts, is formed between the driving wall 14 and the rear wall 15 that are adjacent to each other in the engaging groove 12. A driving part 10 has the engaging groove 12 and a guide groove 11. Accordingly, since this screw to prevent from unlocking forms a blocking member 13 in the guide groove, the commercial-type screwdriver bit can not easily unlock it. Furthermore, since the screw mounting the part can not be unlocked and removed easily, the part is difficult to breakdown so that it can not be repaired and disassembled freely. The screw reduces unexpected accident and danger.

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