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31. 发明专利

JP2001321941A SUBMERGED ARC PRESS WELDING METHOD FOR STEEL BARS HAVING LARGE DIAMETER 失效
公开(公告)号：JP2001321941A
公开(公告)日：2001-11-20
申请号：JP2000148662
申请日：2000-05-19
申请人： NIPPON STEEL CORP , OKABE CO LTD
发明人： KODAMA SHINJI , ICHIYAMA YASUTOMO , TERASAKI SHIGEKI , WAKABAYASHI MASAKUNI , ERA YOSHIYUKI , ENDO TOSHIMASA , FURUKAWA TORU
IPC分类号： B23K9/00 , B23K9/038 , B23K9/067 , B23K9/095 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To improve weld quality by preventing the fluctuation of a welding voltage and a defective arc start when starting welding, which are caused by the fluctuation of a heat input during the welding and a short circuit between molten metal at the tip of a steel bar and a molten pool on a steel plate in a welding method for the steel bar having a large diameter in a submerged arc press welding method. SOLUTION: By calculating the heat input based on a welding current and the welding voltage during the welding, and making a welding heat input constant by finishing the welding when the heat input has reached a prescribed welding heat input controlling the heights of the steel bars so that the welding voltage during the welding becomes a prescribed value and controlling the heights of the steel bars so that the welding voltage becomes a prescribed value even when fails to start the welding, an arc is made to start again.

32. 发明专利

JP2001295287A PILE HEAD CONNECTION HARDWARE 失效
公开(公告)号：JP2001295287A
公开(公告)日：2001-10-26
申请号：JP2000117053
申请日：2000-04-18
申请人： SHIMIZU CONSTRUCTION CO LTD , OKABE CO LTD
发明人： SOTOKARI YOSHITAKA , TAKANASHI HISAO , ERA YOSHIYUKI , KOBAYASHI KOICHI , ENDO TOSHIMASA , NISHIMORI HIROMI
IPC分类号： E02D27/00 , E02D27/12 , E04B1/24 , E04B1/58
摘要： PROBLEM TO BE SOLVED: To easily and surely connect a pile to a column. SOLUTION: This pile head connection metal plate 3 is formed so as to be fixed to a pile head when a member such as a column is connected to the pile head. The metal piece comprises a body part 3a formed of a steel material fixedly welded to the pile head and bolts 10 buried in the upper surface of the body part for tightening the member. A connection piece for connecting a wire 13 is formed integrally with the body part. The body part is formed in such an annular shape as to match the cross section of the pile 1, a plurality of bolts 10 are buried in the upper surface thereof, and a plurality of connection pieces 12 are installed projectingly around the periphery of the body part, or the body part is formed in a strip shape, a single bolt is buried in the upper surface thereof, and the connection pieces are installed at one end of the body part.

33. 发明专利

JP2000038803A SLIPPAGE PREVENTION STRUCTURE FOR BOTH MEMBERS IN COMPOSITE STRUCTURAL BODY OF STEEL PLATE AND CONCRETE 失效
公开(公告)号：JP2000038803A
公开(公告)日：2000-02-08
申请号：JP20549898
申请日：1998-07-21
申请人： NIPPON STEEL CORP , OKABE CO LTD
发明人： HIROZAWA NORIYUKI , TAZAKI KAZUYUKI , ISHIDA MUNEHIRO , ERA YOSHIYUKI , SONOBE YUJI
IPC分类号： E04C3/293 , E04C3/36
摘要： PROBLEM TO BE SOLVED: To provide a slippage prevention structure for increasing execution efficiency and strength of both members in a composite structural body of a steel plate and concrete, and an execution method thereof. SOLUTION: A slippage prevention structure is positioned at a boundary surface between both members in a composite structural body of a steelplate 1 and concrete, and a joint steel pipe 27 is welded to the steel plate 1. Then, this joint steel pipe 27 is connected to a shearing reinforcement 29 embedded in the concrete 5 and having required pulling resistance force with one of screw work joint, screw knot reinforcing joint, binding joint, molten metal filling joint and mortar filling joint or joint combined with them.

34. 发明专利

JPH1122082A PC PLATE INSTALLING DEVICE 失效
公开(公告)号：JPH1122082A
公开(公告)日：1999-01-26
申请号：JP19323397
申请日：1997-07-03
申请人： OKABE CO LTD , KAJIMA CORP
发明人： ERA YOSHIYUKI , KUMAGAI YASUO , OGAKI MASAYUKI , KISHI MASAHIRO , MASUKAWA HIROSHI , AIBA SHINNOSUKE , IKEDA HIDEKI , KOBAYASHI MIKIO
IPC分类号： E04B2/94 , E04B1/38
摘要： PROBLEM TO BE SOLVED: To exhibit a reinforcing effect of a PC plate installing device, and improve convenience in use by embedding a part of a cross-sectional U-shaped installing tool in a PC plate, forming the other part as an installing part supported in contact with a support body erected on the beam material side by projecting from a PC plate surface, and arranging upward cut piece parts in an upper plate part and both side surface parts. SOLUTION: An installing tool 1 is composed of a plate-like upper plate part 2 and side plate parts 4 bending downward along an oblique bending part 3 on its both sides, and intermediate parts are respectively cut upward in the upper plate part 2 and both side plate parts 4, and an upper upward cut piece part 13 and left and right upward cut piece parts 14 are formed. The upward cut piece parts 13 and 14 become a pressure support part to support pressure against out-of-plane pressing force acting on a PC plate 5, and also function as a pressure support part to the vertical directional rotation moment and the horizontal directional rotation moment acting on the installing tool 1. That is, the reinforcing action can be provided against respective directional load forces acting the PC plate 5 by the upward cut piece parts 13 and 14. When the upward cut piece parts 13 and 14 are used as a reference surface, adjusting work on a height and a horizontal condition can be simplified.

35. 发明专利

JPH07189349A PC PLATE ATTACHING DEVICE 失效
公开(公告)号：JPH07189349A
公开(公告)日：1995-07-28
申请号：JP34885993
申请日：1993-12-27
申请人： OKABE CO LTD , KAJIMA CORP
发明人： ERA YOSHIYUKI , KUMAGAI YASUO , OGAKI MASAYUKI , KISHI MASAHIRO , AIBA SHINNOSUKE , IKEDA HIDEKI , KOBAYASHI MIKIO , MASUKAWA HIROSHI
IPC分类号： E04B2/94 , E04B1/38
摘要： PURPOSE:To simplify the regulating work of the attaching height of a PC plate by inserting a bearing body through an opening formed in the lower plate of an attaching tool so as to be adjustable in a horizontal position, and rotating the threadedly engaging body engaged in the threaded part of the bearing body. CONSTITUTION:A fixture 1 is partially buriedly provided in a PC plate 2. In this case, side plates 6, 7 are continuously provided obliquely below to enlarge the anchor effect of a buriedly provided part. Next a bearing body 13 is inserted through the opening 12 of a lower plate 8. The PC plate 2 is supported on the upper face of a threadedly engaging body 16 engaged in a threaded part 15. In this casde, a space is formed between the opening 12 and the bearing body 13 to absorb horizontal slippage. In addition, the fixture 1 and the bearing body 13 are mutually connected, and the threadedly engaging body 16 is rotated to regulate the height of the PC plate 2. Thus, since the PC plate 2 is prevented from falling off during work and positioned below the bearing body 13, bending moment to the bearing body 13 can be controlled low, and moreover since a part buriedly provided in the PC plate 2 has an inclined face in each direction, anchor effect can be reinforced.

36. 发明专利

JPH07189348A ATTACHING METHOD FOR PC PLATE AND ITS DEVICE 失效
公开(公告)号：JPH07189348A
公开(公告)日：1995-07-28
申请号：JP34885893
申请日：1993-12-27
申请人： OKABE CO LTD , KAJIMA CORP
发明人： ERA YOSHIYUKI , KUMAGAI YASUO , OGAKI MASAYUKI , KISHI MASAHIRO , AIBA SHINNOSUKE , IKEDA HIDEKI , KOBAYASHI MIKIO , MASUKAWA HIROSHI
IPC分类号： E04B2/94 , E04B1/38 , E04B2/88
摘要： PURPOSE:To simplify the regulating work of a PC plate and to prevent its falling off during work by inserting a bearing body erectly provided on a beam member side through the opening part of the fixture of an attaching tool so as to be adjustable in a horizontal position, and rotating a threadedly engaging body engaged in a threaded part formed in the bearing body. CONSTITUTION:An attaching tool 1 is partially buriedly provided in a PC plate 2, and its other part is used as the attaching part of a beam member 3. A bearing body 13 is erectly provided on a fixed base part 14, and then inserted through the opening 12 of the lower plate 8 of the attaching tool 1. A threadedly engaging body 16 is threadedly engaged with the threaded part 15 of the bearing body 13 to support the PC plate 2 so as to be adjustable in its height. In addition, a space is formed between the opening 12 and the bearing body 13 to absorb horizontal slippage. The attaching tool 1 and the bearing body 13 are mutually connected to prevent the falling off of the PC plate 2 during work. In this connected state, the threadedly engaging body 16 is rotated for regulating the height of the PC plate 2. Thus, work efficiency can be improved, and bending moment to the bearing body 13 can be suppressed.

37. 发明专利

JPH0596375A STUD WELDING METHOD FOR DEFORMED BAR STEEL 失效
公开(公告)号：JPH0596375A
公开(公告)日：1993-04-20
申请号：JP28087491
申请日：1991-10-01
申请人： KAJIMA CORP , OKABE CO LTD
发明人： USAMI SHIGERU , ERA YOSHIYUKI , MORI IWAO
IPC分类号： B23K9/20 , E04C5/02
摘要： PURPOSE:To obviate cutting work of the deformed bar steel tip and to prevent the occurrence of corrosion on the tip by fitting a steel pipe sleeve or a ceramics sleeve on the deformed bar steel tip. CONSTITUTION:The ceramics sleeve 5 is inserted and fitted on the tip of the bar steel 1a and mounted on a chuck of a welding gun, the periphery of the tip is surrounded by magnetic arc shield 6 and an arc is generated at the interval with base metal 2. The bar steel 1a is fitted with the ceramics sleeve 5, a deformed node does not hinder motion, the motion is executed quickly and accurately and welding can be performed efficiently. After welding, the ceramics sleeve 5 is divided and removed from the bar steel 1. Accordingly, cutting work of the deformed bar steel tip is obviated and the cost down can be attained. In addition, since the bar steel tip is not cut, corrosion is hardly caused.

38. 发明专利

JPS63122852A METHOD FOR JOINTING SCREW REINFORCING BARS FIXED SO AS TO PROVIDE INTERVALS 失效
公开(公告)号：JPS63122852A
公开(公告)日：1988-05-26
申请号：JP26570286
申请日：1986-11-10
申请人： NIPPON STEEL CORP , OKABE CO LTD
发明人： KATAYAMA TAKESHI , KIMURA TERUO , MURAI HIDETO , ERA YOSHIYUKI
IPC分类号： E04B1/18 , E04B1/16 , E04C5/18

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