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21. 发明专利

JPH01150505A CONCRETE FORM FOR MANUFACTURE OF PC PILE WITH NODE 失效
公开(公告)号：JPH01150505A
公开(公告)日：1989-06-13
申请号：JP31027287
申请日：1987-12-08
申请人： TAKECHI KOMUSHO KK
发明人： YABUUCHI SADAO , YOSHIZUKA HIROSHI , ASAYAMA KINGO , YOSHIMI MASAO , OIGAWA MITSUMASA , OGURO IZURU
IPC分类号： B28B21/60 , B28B21/68 , B28B21/80
摘要： PURPOSE:To make demolding of a pile easy, by a method wherein semi- cylindrical half bodies of a concrete form are formed into a cylinder and node molding recessed parts provided at positions where nodes are formed comprise movable and elastic parts of rubbery plastic material in a longitudinal direction of the half bodies of the concrete form. CONSTITUTION:A manufacturing concrete form 1 is generally cylindrical, and comprises top and bottom two half bodies 1a, 1b which are obtained by dividing the concrete form into two parts in a circumferential direction. Rubbery elastic parts 10 are provided in the half bodies 1a, 1b of the concrete form extending over the circumferential direction and at equal intervals in the longitudinal direction. Node molding recessed parts 6 are provided in the elastic parts 10 and nodes of a PC pile 11 are formed by the knot molding recessed parts 6. The PC pile 11 is demolded by lifting the same in the inside of the half body 1b of the concrete form after removing the half body 1a of the concrete form. In this time, even if the PC pile 11 contracts, the node come off easily due to elastic deformation of the elastic parts 10 and demolding is performed smoothly.

22. 发明专利

JPS6475206A DECORATION METHOD OF PRESTRESSED RESIN CONCRETE PILLAR BODY 失效
公开(公告)号：JPS6475206A
公开(公告)日：1989-03-20
申请号：JP23348387
申请日：1987-09-17
申请人： NIPPON CONCRETE IND CO LTD
发明人： MARUYAMA TAKEHIKO , ITO YUKIO
IPC分类号： B28B21/68 , B28B21/70
摘要： PURPOSE:To prevent generation of effloresecence by improving decoration effect, by a method wherein cloth permeable to resin, to which a colored pattern has been applied, is stuck to the inside of a cylindrical concrete shuttering where a reinforcing shaft has been arranged, on the inside of which resin concrete is injected and centrifugal molding is performed. CONSTITUTION:Cloth 2 to which colored patterns 2a, 2a... have been applied is stuck to the inside of a concrete shuttering 1, resin concrete 3 is injected within the cloth 2 and a resin concrete pillar body 4 is manufactured through centrifugal molding. At the time of the centrifugal molding of the resin concrete 3, a coating 5 is formed of resin content of a matrix material of the resin concrete 3 on the surface of the cloth 2 by permeating through the cloth 2. As they are joined together integrally along with reinforcing shafts 6, 6..., strength also is increased and efflorescence can be prevented further. Especially the various colored patterns 2a, 2a... can be applied to the cloth 2 and the colored patterns 2a, 2a... are protection by the resin coating 5 on the surface and confirmed clearly and visually by seeing through the resin coating 5, decoration effect of the resin concrete pillar body 4 becomes great.

23. 发明专利

JPS63165104A METHOD OF FORMING THROUGH-HOLE OF END-SURAFCE FITTING USED FOR PILE, POST, ETC. MADE OF CONCRETE 失效
公开(公告)号：JPS63165104A
公开(公告)日：1988-07-08
申请号：JP26196887
申请日：1987-10-16
申请人： KOJIMA SEISAKUSHO KK
发明人： KOJIMA KAZUO
IPC分类号： B21D53/36 , B28B21/62 , B28B21/68 , E02D5/30

24. 实用新型

JPS6316488Y2 失效
公开(公告)号：JPS6316488Y2
公开(公告)日：1988-05-11
申请号：JP8591981
申请日：1981-06-10
IPC分类号： B29B7/00 , B28B21/30 , B28B21/68 , B29C39/00 , B29C39/08 , B29C39/10 , B29C39/26 , B29C41/04 , B29C41/34 , B29K105/06 , D06H7/04 , B29L23/22

25. 发明专利

JPS6259009A MANUFACTURE OF CONCRETE PILE 失效
公开(公告)号：JPS6259009A
公开(公告)日：1987-03-14
申请号：JP9925785
申请日：1985-05-09
申请人： RIYUUKIYUU CONCRETE KK
发明人： OSHIRO MASAHARU , HIGA MORIKATSU , NAKAIMA KENSHIN
IPC分类号： E04G21/02 , B28B21/62 , B28B21/68 , B28B23/06 , E02D5/58

26. 发明专利

JPS61195806A MANUFACTURE OF CENTRIFUGAL-FORCE CONCRETE PRODUCT 失效
公开(公告)号：JPS61195806A
公开(公告)日：1986-08-30
申请号：JP3821985
申请日：1985-02-27
申请人： NIPPON FUME CAN KK , AIDA ENG LTD
发明人： IIDA HIDEO , TEZUKA YOSHITOMO
IPC分类号： B28B21/32 , B28B21/68

27. 发明专利

JPS60129211A MANUFACTURE OF REINFORCED CONCRETE PILE 失效
公开(公告)号：JPS60129211A
公开(公告)日：1985-07-10
申请号：JP23867283
申请日：1983-12-16
申请人： MUTOU KOUKICHI
发明人： MUTOU KOUKICHI
IPC分类号： B28B21/68 , B28B23/10

28. 实用新型

JPS5916181Y2 失效
公开(公告)号：JPS5916181Y2
公开(公告)日：1984-05-12
申请号：JP18752180
申请日：1980-12-27
IPC分类号： E02D5/58 , B28B21/68 , B28B23/04 , E04C5/12

29. 发明专利

JPS5959408A Manufacture of hume pipe 失效
公开(公告)号：JPS5959408A
公开(公告)日：1984-04-05
申请号：JP17166382
申请日：1982-09-30
申请人： Nippon Hume Pipe
发明人： IIDA HIDEO
IPC分类号： F16L21/02 , B28B21/00 , B28B21/30 , B28B21/68 , B28B21/74

30. 发明专利

JPS5948110A Manufacture of concrete pipe 失效
标题翻译：混凝土管的制造
公开(公告)号：JPS5948110A
公开(公告)日：1984-03-19
申请号：JP15906582
申请日：1982-09-13
申请人： Asahi Chemical Ind
发明人： TANAKA AKIHO
IPC分类号： B28B21/34 , B28B21/68 , B28B21/90

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