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1. 发明专利

JP2001012014A SHRINKING DEVICE FOR THERMAL SHRINKAGE SLEEVE 失效
公开(公告)号：JP2001012014A
公开(公告)日：2001-01-16
申请号：JP18358599
申请日：1999-06-29
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SATOU DAIGO , YAMAMORI YUSUKE , IIO EIJI , MIKAMI TAIJI
IPC分类号： E04C5/12 , B29C63/42 , E04G21/12
摘要： PROBLEM TO BE SOLVED: To provide a shrinkage device and a shrinkage method capable of heating a thermal shrinkage tube without shrinking irregularity easily and in a short time. SOLUTION: A semi-circular cylindrical heating portion 1 covering the whole length and whole periphery of a thermal shrinkage tube constituted in a freely opening and closing manner is provided. Both ends of the heating portion 1 are provided with a holding portion 6 respectively suited to the outer diameter of a target covering tube. Use of an insulating material is desired for the holding portion 6. According to this device, it is not required to rotate the shrinking device around the thermal shrinkage tube because of the heating portion 1 surrounding the whole length and whole periphery of the thermal shrinkage tube, and the thermal shrinkage tube can be shrunk in a short time without irregularity.

2. 发明专利

JP2002081169A COAT PC STEEL STRAND 失效
公开(公告)号：JP2002081169A
公开(公告)日：2002-03-22
申请号：JP2000273076
申请日：2000-09-08
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： HIGASHIDA YOSHIHIKO , MIKAMI TAIJI , YAMAMORI YUSUKE , IIO EIJI
IPC分类号： E04C5/03 , E04C5/08
摘要： PROBLEM TO BE SOLVED: To provide a coat PC steel strand having high adhesive property to concrete or grout and reducing friction with a plastic or metal sheath. SOLUTION: The coat PC steel stand includes a PC steel strand 20, a thermosetting resin coating layer formed on the surface thereof and granular bodies 22 embedded so as to partially project from the coating layer 21. Coefficient λof friction between the coat PC steel strand and the plastic sheath or the plastic sheath is λ

3. 发明专利

JP2001241039A WATER STOP CONSTRUCTION FOR ANCHOR CONSTRUCTION 失效
公开(公告)号：JP2001241039A
公开(公告)日：2001-09-04
申请号：JP2000049642
申请日：2000-02-25
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SATOU DAIGO , MIKAMI TAIJI , YAMAMORI YUSUKE , IIO EIJI
IPC分类号： E21D20/00 , E02B7/00 , E02D5/80
摘要： PROBLEM TO BE SOLVED: To provide a water stop construction in an anchor construction in which the water stop function is not deteriorated event when a tension member is tensed. SOLUTION: A tension member (PC stranded wire 1) to be inserted into an anchor installed hole, an anchoring device for fixing the tension member to one end side of the anchor installation hole and grout 2 to be filled between the anchor installation hole and tension member are provided. At one end side of the tension member, the grout 2 and the tension member are isolated and a free length portion is formed, at the other end side, the tension member is anchored with the grout 2 and an anchored length portion is formed. The boundary between the free length portion and the anchored length portion is sequentially covered with an adhesive 4 and a thermal shrinkage tube 5. An insulation layer 6 for isolating the thermal shrinkage tube 5 and the grout 2 are provided. When the tension member is tensed, the direct adhesion force between the thermal shrinkage tube 5 and the grout 2 is lost and thus adhesion force at the interface between the tension member and the adhesive 4 or the interface between the thermal shrinkage tube 5 and the adhesive 4 does not show a considerable change and thus the water stopping property can be maintained.

4. 发明专利

JPS63265052A UN-BOND PC STEEL BAR 失效
公开(公告)号：JPS63265052A
公开(公告)日：1988-11-01
申请号：JP9802987
申请日：1987-04-21
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： USUI SUSUMU , MIKAMI TAIJI , IIO EIJI
IPC分类号： E04C5/08 , B32B13/06

5. 发明专利

JPH0623511B2 失效
公开(公告)号：JPH0623511B2
公开(公告)日：1994-03-30
申请号：JP19805485
申请日：1985-09-06
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： IIO EIJI
IPC分类号： E04G21/12 , B21F9/00

6. 发明专利

JPH0623510B2 失效
公开(公告)号：JPH0623510B2
公开(公告)日：1994-03-30
申请号：JP14906485
申请日：1985-07-04
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： IIO EIJI
IPC分类号： E04G21/12 , B21F9/00

7. 发明专利

JPS6259765A METHOD AND APPARATUS FOR PRE-TENSIONING PC STEEL MATERIAL BUNDLE 失效
公开(公告)号：JPS6259765A
公开(公告)日：1987-03-16
申请号：JP19805485
申请日：1985-09-06
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： IIO EIJI
IPC分类号： E04G21/12 , B21F9/00

8. 发明专利

JP2001009550A DEVICE FOR REMOVING ENCLOSURE OF UNBOND PC STEEL MATERIAL 失效
公开(公告)号：JP2001009550A
公开(公告)日：2001-01-16
申请号：JP18283199
申请日：1999-06-29
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SATOU DAIGO , YAMAMORI YUSUKE , IIO EIJI , MIKAMI TAIJI
IPC分类号： E02D5/80 , B21F99/00 , B21F21/00
摘要： PROBLEM TO BE SOLVED: To easily remove a covering without damaging a corrosion prevention layer, and remove the covering at the position almost corresponding to an opening of an anchor hole by making the inside diameter of each inner peripheral blade, which is equipped with a pair of semi-circle inner peripheral blades and its heating means and is closably constituted, smaller than the inside diameter of an enclosure of the steel material and bigger than the outside diameter of a core material of the steel material. SOLUTION: This device is equipped with one pair of semi-circle inner peripheral blades 1, and carrying handles 2 integrated with each of the inner peripheral blades 1. A supporting axis 3 is provided between the inner peripheral blades 1 and the carrying handles 2, so that the inner peripheral blades 1 can be opened/closed by opening/closing the carrying handles 2. Each of the inner peripheral blades 1 is formed into a semi-circle shape, and a circular spacing 4 is constituted when one pair of the inner peripheral blades 1 are closed. The inside diameter of the circular spacing 4 is smaller than the inside diameter of the enclosure of an unbond PC steel stranded wire to be a cutting object, but bigger than the outside diameter of a core material of the stranded wire. Additionally, the inner peripheral blade 1 has a heater for heating the inner peripheral blade 1 to the temperature above the softening point of the covering, and it is preferable that the heater is built in the inner peripheral blade 1.

9. 发明专利

JPS6210368A METHOD AND APPARATUS FOR TENSIONING PC STEEL MATERIAL BUNDLE 失效
公开(公告)号：JPS6210368A
公开(公告)日：1987-01-19
申请号：JP14906485
申请日：1985-07-04
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： IIO EIJI
IPC分类号： E04G21/12 , B21F9/00

10. 发明专利

JP2001011854A CORROSION-PROOFING STRUCTURE OF ANCHORAGE SECTION IN PC STEEL MATERIAL 失效
公开(公告)号：JP2001011854A
公开(公告)日：2001-01-16
申请号：JP18292099
申请日：1999-06-29
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： YAMAMORI YUSUKE , IIO EIJI , SATOU DAIGO
IPC分类号： E02D5/76 , C23F15/00 , E02D5/80
摘要： PROBLEM TO BE SOLVED: To provide a corrosion-proofing structure of an anchorage section in a PC steel material capable of being easily formed with high work efficiency and the most suitable cap available for the corrosion-proofing structure. SOLUTION: The corrosion-proofing structure is equipped with an anchor plate 1 placed on the mounting surface, an anchor disc 2 placed on one face side of the anchor plate 1 and a PC steel material (core 10) fixed to the anchor disc 2 with a wedge 6. A protection pipe 4 is extended to the other face side of the anchor plate 1, a cap 5 is mounted to the end of the protection pipe 4, and the inside of the protection pipe is filled with resin 7. The cap is equipped with a cylindrical base body including one end to be opened and the other end having the bottom and a passing-through section projected from the bottom and, at the same time, inserting the PC steel material thereinto, the passing- through section has the tapered circumferential wall 5G continued to a small diameter section from a large diameter section, and the thickness of the circumferential wall is less than 10 mm.

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