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1. 发明专利

JPH1150452A PILE HEAD JOINING REINFORCING BAR WITH SCREW 失效
公开(公告)号：JPH1150452A
公开(公告)日：1999-02-23
申请号：JP22308497
申请日：1997-08-04
申请人： OKABE CO LTD
发明人： HAYASHI HIDEKI , ERA YOSHIYUKI , MORISHITA TAKIO , NEZAKI MIWAKO
IPC分类号： E02D5/34 , E02D5/58
摘要： PROBLEM TO BE SOLVED: To reduce weight and improve economical efficiency by a method wherein one end of a deformed reinforcing bar is fixed at a bolt body, having one end part in which a spanner hook is formed and threadely engaged with a screw hole formed in the veneer of a PC pile to form a pile head joining reinforcing bar with a screw. SOLUTION: In a bolt body 1, a screw is processed on the outer periphery of a round bar through rolling or cutting and a spanner hook part 3 is formed at one end part through a pressing work. A bolt body 1 and a deformed reinforcing bar 4 are integrally fixed together through frictional press contact or stud welding to form the pile head joining reinforcing bar (a) with a screw. A bolt body 1 forms a hollow bolt body, the deformed reinforcing bar 4 is inserted in one end part, throttling, cut through, and contact-bonding effected by a dice. Simultaneously, an outer peripheral surface may be molded in a hexagonal spanner hook part. A nut 6 is screwed in a screw 2 and threadely engaged with the screw hole 8 of the veneer 7 of the PC pile. This constitution uses a fine deformed reinforcing bar, improves workability through reduction of weight, and further improves economical efficiency.

2. 发明专利

JP2004346736A Pile head joint reinforcement, and mounting structure of pile head joint reinforcement 有权
公开(公告)号：JP2004346736A
公开(公告)日：2004-12-09
申请号：JP2004217026
申请日：2004-07-26
申请人： Okabe Co Ltd , Win Kenchiku Jimusho:Kk , 岡部株式会社 , 有限会社ウィン建築事務所
发明人： HAYASHI HIDEKI , ERA YOSHIYUKI , MORISHITA TAKIO , NEZAKI MIWAKO
IPC分类号： E02D5/34 , E02D27/12
摘要： PROBLEM TO BE SOLVED: To provide a pile head joint reinforcement lightweight, easy to handle and economical by using a deformed reinforcement with a fine diameter because the deformed reinforcement with a diameter suitable for design can be selected, and its mounting method.
SOLUTION: The pile head joint reinforcement (a) comprises a bolt body 1 allowing a nut 6 to be screw-fitted to an extra length part of an external thread part 2 on one end side of a threaded hole 8 of an end plate 7 stuck to a pile head of a prestressed concrete pile (b), and the deformed reinforcement 4 stuck to the other end side of the bolt body 1 almost with the same axis by friction pressure-bonding or the like. The pile head joint reinforcement is screwed into the threaded hole 8 of the end plate 7 using a spanner fastening part 3 provided on the other end side of the bolt body 1, and then fixed by tightening the nut 6.
COPYRIGHT: (C)2005,JPO&NCIPI

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