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1. 发明专利

JPH06264453A PRECAST CONCRETE-MADE PERMANENT FORM FOR FOUNDATION, AND FOUNDATION PRACTICE USING ITS FORM 失效
公开(公告)号：JPH06264453A
公开(公告)日：1994-09-20
申请号：JP7861393
申请日：1993-03-15
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E02D27/01 , E04B1/16
摘要： PURPOSE:To heighten work efficiency for constructing structural foundations, by a method wherein two vertical walls with a height required are allowed to intersect with each other and are formed almost in the shape of a letter L at plan-view. CONSTITUTION:Two vertical walls 7, 7 with a height required, which can be stored in a foundation ditch 1, are allowed to intersect with each other and are formed almost in the shape of a letter L at in the plan-view, and reinforcements are properly arranged therein, and thus a precast concrete-made form member 6 is formed. After that, the members 6 are suspended on the upper face of leveling concrete 5 on the foundation ditch 1 and the sides of the walls 7, 7 are arranged facing to each other. Auxiliary plates each are put on steel plates laid in the walls, in the vicinity of parts where the sides of the walls 7, 7 face to each other, and the walls 7, 7 are connected with each other by welding. After that, earth and sand are backfilled around the peripheral part of the members 6 and reinforcements are properly arranged at the inside of a permanent form for a foundation, following which main reinforcements 4 for a pile 3 are connected with main reinforcements for a column and concrete is placed therein. In this way, assembly of concrete-placing panels and removal thereof are made unnecessary and working efficiency can be heightened.

2. 发明专利

JPH06173390A CONNECTING METHOD FOR PRECAST CONCRETE COLUMN 失效
公开(公告)号：JPH06173390A
公开(公告)日：1994-06-21
申请号：JP35810192
申请日：1992-12-09
申请人： FUDO KENKEN KK , C F KOGYO KK
发明人： SATO TAKUO , ITABASHI NORIYUKI
IPC分类号： E04C3/34
摘要： PURPOSE:To make it possible to introduce easily prestresses to connect precast concrete columns in a plurality of storeys. CONSTITUTION:Precast concrete columns 1 and 2 of first and second floors are formed in a cylindrical hollow body, prestress is introduced with PC steel materials 6 and 12 arranged to hollow sections 5 and 11, and the precast concrete columns 1 and 2 are connected together as a unit. According to the constitution, weight of the precast concrete column is decreased, so that conveyance and lifting work of the precast concret column is carried out easily. It is not necessary to bury a sheath in the precast concrete column, and work can be easily carried out. Formwork and reinforcing bar placer are not required in the field.

3. 发明专利

JPH06336765A CONNECTING CONSTRUCTION OF HALF PRECAST CONCRETE FORMING BODY 失效
公开(公告)号：JPH06336765A
公开(公告)日：1994-12-06
申请号：JP14669693
申请日：1993-05-27
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E04B1/16
摘要： PURPOSE:To provide connecting construction when half precast concrete column member and beam member are connected in the second dimensional direction or the third dimensional direction. CONSTITUTION:Steel connectors 6 formed by extending insert sections 7 capable of being entered in hollow regions of half precast concrete forming bodies 1 in the second dimensional direction or the third dimensional direction are made to lie in the intersection with half precast concrete forming bodies 1. After the steel connectors 6 are connected to steel bars 15 inserted along lengthwise in the half precast concrete forming bodies 1, post cast concrete is filled to the inside spaces of the half precast concrete forming bodies 1.

4. 发明专利

JPH03183508A CENTRIFUGAL HOLLOW MOLDED BODY MADE OF CONCRETE 失效
公开(公告)号：JPH03183508A
公开(公告)日：1991-08-09
申请号：JP32155589
申请日：1989-12-13
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E04C3/34 , B28B21/30 , C04B38/08
摘要： PURPOSE:To improve adhesion to post-placement concrete, by a method wherein light-weight aggregate whose specific gravity is compounded with the concrete as coarse aggregate, the coarse aggregate is raised to an inner circumferential surface of a centrifugal hollow molded body with a difference in specific gravity and the inner circumferential surface of the centrifugal hollow molded body is constituted into a porous state. CONSTITUTION:Light-weight corarse aggregate whose specific gravity is not exceeding 1.5 is compounded with concrete as coarse aggregate in a concrete composition to be loaded into a concrete shuttering device, in a centrifugal hollow molded body which is manufactured by a method wherein the concrete shuttering device is turned by a turning machine and concrete in the concrete shuttering device is compacted with centrifugal force. The centrifugal hollow molded body is constituted so that the coarse aggregate is raised to an inner circumferential surface of the centrifugal hollow molded body with a difference in specific gravity and the inner circumferential surface of the same becomes porous. At the time of centrifugal molding, the cement and fine aggregate whose specific gravity is heavy are gathered to an outer circumferential surface side 7 of a completed product, the coarse aggregate 6, air, water, impurities whose specific gravity is light is raised away to an inner circumferential side 8 of a hollow part and the inner circumferential surface side 8 becomes porous by differing from the outer circumferential surface side 7. With this construction, adhesion to post-placement concrete can be held favorably.

5. 发明专利

JPH02301406A FRAME DEVICE FOR CENTRIFUGAL MOLDING 失效
公开(公告)号：JPH02301406A
公开(公告)日：1990-12-13
申请号：JP12344389
申请日：1989-05-17
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： B28B21/80
摘要： PURPOSE:To make the inner peripheral surface square similar to the outer surface and manufacture a concrete square cylinder of uniform wall thickness by dividing an inner frame into two or more and arranging the same in the outer frame in a manner that a passage for passing a concrete material between spaced apart inner frames. CONSTITUTION:An outer frame 3 and an inner frame 8 divided into two or more are installed on an end platen 1, and a passage 13 in which a concrete material can flow is formed between adjacent inner frames 8, 8. A set frame device is fixed to a retaining arm component 28 projectingly provided on a rotating disk 27 forming a rotating mechanism 18 by means of a frame fixing means 29. While the rotating disk 27 is rotated by driving a rotor 23, a concrete material is fed via a through-hole 2 of the end platen 1 into a frame device. The concrete material is pressed strongly to the inner wall of the outer frame 3 through the passage 13 by centrifugal force and filled all over the passages between the outer frame 3 and the inner frames 8. Rotation is stopped and given steam curing is carried out to cure the concrete material, and then the frame device is dismantled to manufacture a concrete square cylinder with square inner peripheral surface.

6. 发明专利

JPH02256751A FITTING STRUCTURE OF PRECAST CONCRETE PLATE 失效
公开(公告)号：JPH02256751A
公开(公告)日：1990-10-17
申请号：JP7970389
申请日：1989-03-30
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E04B1/38
摘要： PURPOSE:To securely fasten a concrete plate with a simple work by previously attaching a fitting metal block with a bored hole to one side of a PC plate and by making the front edge projected from a concrete body pass through the bored hole and fastening it with a nut. CONSTITUTION:A plurality of fitting metal blocks 2 with a bored hole 5 for an anchor bolt 9 are attached on one side of a precast concrete plate 1 in advance. And the front edge of the previously arranged anchor bolt 9 projected from the concrete body is made to pass through the bored hole 5 of the fitting metal block 2 to screw a nut 12 via a washer 11 within the fitting metal block 2. In a case, an anchor plate 13 fitted to the anchor bolt 9 is welded with the fitting metal block 2. In this way, attaching and detaching work of concrete forms are not necessary and further any special techniques are not required.

7. 发明专利

JPH05321324A COMPOSITE BEAM MADE OF PRECAST CONCRETE AND COUPLING STRUCTURE FOR THE BEAM 失效
公开(公告)号：JPH05321324A
公开(公告)日：1993-12-07
申请号：JP15001692
申请日：1992-05-19
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E04C3/20 , E04B1/16
摘要： PURPOSE:To intercouple beam bodies without needing a coupling metal by a method wherein the bottom of a beam body made of precast concrete where lower end main reinforcing bars are arranged is notched to form a notch part and the lower end main reinforcing bars exposed internally of the notch part are overlapped with each other in the notch part. CONSTITUTION:The bottom of one end part or both end parts of a composite beam body 1 made of precast concrete is notched inward to form a notch part 7, and lower end main reinforcing bars 3 are exposed internally of the notch part 7. The end parts of composite beam bodies 1 are positioned facing each other with a slight clearance therebetween, and the lower end main reinforcing bars 3 and 3 are overlapped with each other in the notch parts 7 and 7 thereof. The lower end main reinforcing bars 3 and 3 are tied up with each other by means of a binding fine wire or integrally formed by welding and the like means. This structure enables simplification of a site operation.

8. 发明专利

JPH05202574A PRECAST CONCRETE HOLLOW COLUMN BODY 失效
公开(公告)号：JPH05202574A
公开(公告)日：1993-08-10
申请号：JP3585092
申请日：1992-01-28
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E04B1/16 , E04C3/34
摘要： PURPOSE:To increase connection efficiency of the later place concrete by forming the circumferential surface of each of comer sections of a precast concrete square cylindrical column body having the hollow inside obtained by a centrifugal molding machine in an uneven shape, and increasing the surface area of the circumferential surface. CONSTITUTION:A precast concrete square cylindrical column body 1 having the hollow inside is forum by a centrifugal molding machine. The surface area of the circumferential surface of each of comer sections 8 in the space 7 is increased, and a cross sectional area of the later placed concrete is increased. For that purpose, when main reinforcing bars 9 and a lateral tie 10 are set in a form of a centrifugal molding machine, fillers capable of deformation are arranged to the corner sections 8 to rotate the form, and concrete is placed to form the circumferential surface of each of the corner sections 8 in an uneven shape in accordance with the shape of each of the fillers. According to the above constitution, connection efficiency of the later placed concrete is increased, and a column construction having sufficient strength can obtained.

9. 发明专利

JPH03173608A CENTRIFUGAL DEVICE FOR MANUFACTURING CONTINUOUS HOLLOW MOLDING OF CONCRETE 失效
公开(公告)号：JPH03173608A
公开(公告)日：1991-07-26
申请号：JP31329289
申请日：1989-12-04
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： B28B21/30
摘要： PURPOSE:To manufacture a continuous hollow molding with a large bore by setting up a structure in which sleeves are fixed rotatably in a through-hole of pillar blocks placed on pedestals at the given interval and fixing a rotating shaft in sleeves on and off freely. CONSTITUTION:A form 8 is placed between pedestals 1 and 2 by means of a truck 9 with a support lifting device, lifted up and set on a position where tubular components 14 and sleeves 4 of the form 8 are connected together in the linear shape. Then, a rotating shaft 10 is inserted into the sleeve 4 on the pedestal 1 side from the left, and inserted through the tubular components 14 on both ends of the form 8 and also through the inside of the sleeve 4 of a pillar block 3 on the upper surface of the pedestal 2. The rotating shaft 10 and the sleeves 4 are fixed by fasteners 11, and the rotating shaft 10 and the form 8 are fixed by fasteners 12. A truck 9 is lowered after fastening and the form 8 is removed starting from the lower section. Concrete is placed in the form 8 consisting of inner and outer forms and rotation is started. Even a long and large form can be set on and removed to increase productivity of a continuous hollow molding with a large bore.

10. 发明专利

JPS63130838A HOLLOW PILLAR MADE OF PRECAST CONCRETE 失效
公开(公告)号：JPS63130838A
公开(公告)日：1988-06-03
申请号：JP27822186
申请日：1986-11-21
申请人： C F KOGYO KK
发明人： ITABASHI NORIYUKI
IPC分类号： E04B1/16 , B28B21/56

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