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1. 发明专利

JPH10168881A SHEET PILE USING SUPPORT STRUCTURE OF EARTH RETAINING WALING MATERIAL 失效
公开(公告)号：JPH10168881A
公开(公告)日：1998-06-23
申请号：JP34451096
申请日：1996-12-10
申请人： NIPPON STEEL METAL PROD , NIPPON STEEL CORP , SHINSUGATA KOGYO KK
发明人： MACHIDA SADAO , IIDA NOBUAKI , TAKAHASHI KUNIYOSHI , ISHIDA YOICHI , HAYASHI TSUNEHIKO , IIMURA TAMIJI
IPC分类号： E02D17/04
摘要： PROBLEM TO BE SOLVED: To provide a support structure by which at the time of drilling a pit or laying a buried pipe or the like in foundation work for constructing a steel tower, the position of a waling support material used in preventing fall of earth of pit wall can be suitably adjusted, strong pressing force withstanding for vibration can be obtained for a strut. SOLUTION: A locking member 4a for locking a sheet pile strut 1 is fitted to the side surface of a waling support material for supporting a waling material 3, further a thrust bolt 6 is installed on the base of the waling support material 2 in the direction of the strut through a bolt bearer 5, the locking member 4a is locked on the end part of the sheet pile strut 1, the sheet pile strut 1 is pressed by the thrust bolt 6, and the waling support material 2 is pressed and fixed to the sheet pile strut 1. Accordingly, the support material can be strongly pressed and fixed by the thrust bolt and kept from being loosened by shock, vibration or the like so as to surely do a drilling work safely and surely.

2. 发明专利

JPH0966394A FIELD WELDING WORK DEVICE FOR STEEL PIPE AND WELDING WORK METHOD 失效
公开(公告)号：JPH0966394A
公开(公告)日：1997-03-11
申请号：JP24396895
申请日：1995-08-30
申请人： NIPPON STEEL METAL PROD , TOKYO GAS CO LTD , NIPPON STEEL CORP
发明人： MACHIDA SADAO , IIDA NOBUAKI , HAYASHI MITSUTOSHI , MIYAMOTO YUKINOBU , NAGASHIMA SHINGO , DAIKUHARA TAKESHI , ISHIDA YOICHI , KUSUMEKI TAKASHI
IPC分类号： B62B3/10 , B23K9/028 , B23K37/053
摘要： PROBLEM TO BE SOLVED: To obtain a field welding work device for steel pipes which efficiently executes pipe embedment work of gas and water supply pipes by making the change of roll gaps and roll movement independent. SOLUTION: There is a steering handwheel 6 for imparting a directional switching function to a front wheel 2a. A controller 9 for actuating a brake shoe 10 for the purpose of applying the brake on trucks is disposed. The brake force is applied to a rear wheel 3a by operation of a brake handle 11. Pipes are placed on the front and rear of the trucks in the upper part of a truck body and turning rolls 40a, 40b adjustable in the spacings between each other are disposed to support a steel pipe 60. The one truck is kept fixed by the brake device at the time of groove mating and welding work. The steel pipes are disposed to face each other in the state of maintaining the specified spacing therebetween by operating the initial moving device of the other one truck and are fixed by the controller 9. The work to mate the grooves of the steel pipes and the work to tack weld the steel pipes are executed by integrally moving a pair of the rolls. The welding after the tack welding work is executed while the tack welded steel pipes are rotated.

3. 发明专利

JPH08277528A EARTH RETAINING WORK IN EXCAVATED DITCH AND STRUCTURE THEREOF 失效
公开(公告)号：JPH08277528A
公开(公告)日：1996-10-22
申请号：JP10459695
申请日：1995-04-06
申请人： NIPPON STEEL METAL PROD , NIPPON STEEL CORP
发明人： TAKAHASHI KUNIYOSHI , ISHIDA YOICHI , HAYASHI TSUNEHIKO , YOSHIGAI KOJI , MACHIDA SADAO , IIDA NOBUAKI
IPC分类号： E02D17/08
摘要： PURPOSE: To avoid protrusions in an excavated ditch and prevent landslides of the inside walls, by rotating struts to retract it to a specified position of a waling, when the basal end of strut is supported by a post and a long pipe to be buried is hung down in an earth retaining structure. CONSTITUTION: A strut 3 with two rotary axses is turned to the upper face of a waling 4, while one end thereof is fitted to a post 1. In this case, a removable additional post 5 is joined on the upper end of the post 1 to prevent the post 1 from falling and an auxiliary strut 3A is detachably fixed between oppositely erected posts 5. One end of the strut 3 is supported by the post 1 through a rotary axsis crossing at right angles and the other end thereof is detachably fitted to the post 1 and the strut 3 is contained in the same plane with the post 1 and the waling 4. In this way, when a long size pipe is hung down to bury it in the ground, the width of the excavated ditch 30 is used to the utmost and the safety can be secured by fitting the auxiliary strut 3A.

4. 发明专利

JP2002059263A CLADDING-BY-WELDING REPAIRING METHOD 失效
公开(公告)号：JP2002059263A
公开(公告)日：2002-02-26
申请号：JP2000240781
申请日：2000-08-09
申请人： NIPPON STEEL CORP
发明人： ISHIDA YOICHI , BABA NORIMITSU
IPC分类号： B23K9/04 , B23K9/14 , B23K9/167
摘要： PROBLEM TO BE SOLVED: To provide a cladding-by-welding repairing method for repairing flaws in a steel plate or steel tube which does not require preheating or postheating, and is simple and excellent in execution. SOLUTION: A flaw part is cladded by welding by the TIG welding method to the thickness equivalent to that of a base metal of non-repair parts, a layer covering the whole surface of a repaired weld bead is welded by one pass by the TIG welding method or the covered arc welding method, and another layer which covers substantially the whole surface of the layer while the base metal part is not melted at all is welded by one pass by the TIG method or the covered arc welding method. In the welding of the final layer, an outermost circumferential bead covering the circumference of the whole final layer by one welding bead or a plurality of welding beads in which starting ends, terminating ends or a starting end and a terminating end overlap is constituted, and all welding beads surrounded by the welding bead constituting the outermost circumference is welded before welding the weld bead constituting the outermost circumference.

5. 发明专利

JPH02127990A REINFORCING WELDING METHOD FOR CONSTRUCTED PIPE WELD DEFECT PART 失效
公开(公告)号：JPH02127990A
公开(公告)日：1990-05-16
申请号：JP27745488
申请日：1988-11-04
申请人： NIPPON STEEL CORP , OSAKA GAS CO LTD
发明人： ISHIDA YOICHI , MATSUDA EIKO , SAKOMA TAKASHI , TSUCHIYA MASATOSHI
IPC分类号： B23K31/00 , B23K9/00 , B23K9/028 , B23K9/235
摘要： PURPOSE:To make it possible to perform main welding without difficulty and to obtain a reinforced weld zone with fine quality by pretreating a weld defect part to be reinforced by arc heat, etc., in advance. CONSTITUTION:In the case the groovelike defect part 4 exists in the welded zone 3 interior side 1B of constructed pipes 1 and 2, since oils and fats, rust 5, etc., stick and accumulate in the defect part 4, pretreating welding is performed in advance by gas-arc welding equipment to perform main welding. In pretreating welding, the arc heat is generated under conditions with little quantity of deposition and a stuck deposit 5 in the defect part 4 is burnt and molten. Welding including a pretreated weld zone 6 is performed by the first pass of next main welding and the pretreated weld zone 6 is remolten and integrated with main welding and the stable welding quality is maintained.

6. 发明专利

JPS5922631B2 失效
公开(公告)号：JPS5922631B2
公开(公告)日：1984-05-28
申请号：JP11785979
申请日：1979-09-17
申请人： NIPPON STEEL CORP
发明人： INAMI RYUICHI , ISHIDA YOICHI
IPC分类号： B23K9/028

7. 发明专利

JPS6157112B2 失效
公开(公告)号：JPS6157112B2
公开(公告)日：1986-12-05
申请号：JP13624082
申请日：1982-08-06
申请人： NIPPON STEEL CORP
发明人： SHOJI SHIGETO , ISHIDA YOICHI
IPC分类号： B23K9/16 , B23K9/00 , B23K9/028 , B23K9/035 , B23K9/167 , B23K35/02

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