专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JP2000137154A PRODUCTION OF OPTICAL CABLE 失效
公开(公告)号：JP2000137154A
公开(公告)日：2000-05-16
申请号：JP30920798
申请日：1998-10-29
申请人： FUJIKURA LTD
发明人： OKADA NAOKI , WATANABE HIROTO , MIYAMOTO SUEHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To make it possible to produce an optical cable in which work such as connection and post branching is easy, at a low cost by providing a process stage for inserting coated optical fibers into a cylindrical body 3 while forming a belt-like material in a cylindrical shape and a process stage for bonding both transverse ends of the belt-like material molded to the cylindrical shape by adhesive tapes. SOLUTION: The optical cable 10 is constituted by disposing the cylindrical body 3 housing the coated optical fibers 1 at the center, coating the circumference thereof with a sheath 5 and providing the inside of this sheath 5 with tension members 2. The cylindrical body 3 is formed to the cylindrical shape by bonding its both transverse ends 3a and 3a to each other by the adhesive tapes 6. The belt-like material 11 used for molding the cylindrical body 3 includes, for example, nonwoven fabric tapes, plastic tapes, etc. The cylindrical body 3 having waterproofness can be obtained if the water absorptive tapes formed by applying a water absorptive material to these tapes are used. If the bonding of both ends by the adhesive tapes 6 is well executed, both ends may overlap slightly each other.

42. 发明专利

JPH11142706A APPARATUS FOR PRODUCING S-Z INTERTWINED CABLE OF GROOVED FILAMENTARY BODY 失效
公开(公告)号：JPH11142706A
公开(公告)日：1999-05-28
申请号：JP32382597
申请日：1997-11-10
申请人： FUJIKURA LTD
发明人： UCHIYAMA YOSHIMI , TOYODA TAKESHI , OKADA NAOKI
IPC分类号： G02B6/44 , H01B13/02
摘要： PROBLEM TO BE SOLVED: To make it possible to surely insert coated optical fibers into grooved filamentary bodies by rotatably providing a main dividing plate connected coaxially to a top dividing plate with coated fiber guiding cylinders having gears in the circumferentially equally divided positions of this plate and rotatably supporting a rotary wheel for untwisting provided with an internally toothed gear meshed with this gear at a fixing frame. SOLUTION: The rotary wheel 4 for untwisting rotatably supported at the fixing frame F is rotatably provided with the disk-shaped main dividing plate 5 on its circumferential inner side and is rotationally driven by a timing belt 7B put around the outer peripheral part. The gear parts 61 disposed at one end the hollow columnar coated fiber guiding cylinders 6 are meshed with the internally toothed gear 41 formed in part of the inner periphery of the rotary wheel 4 for untwisting. A timing belt 7A for driving put at the end of a hollow drive shaft 72 is directly rotationally driven by a motor M1 periodically run forward and backward by the inversion command from an S-Z twist pitch setter 8 to drive the timing belt 7b via a differential gear device 8. At this time, the input rotation of the differential gear device 8 is applied by a motor M2.

43. 发明专利

JPH11142705A GROOVED FILAMENTARY BODY S-Z TWIST CABLE ASSEMBLING DEVICE 失效
公开(公告)号：JPH11142705A
公开(公告)日：1999-05-28
申请号：JP32382497
申请日：1997-11-10
申请人： FUJIKURA LTD
发明人： UCHIYAMA YOSHIMI , TOYODA TAKESHI , OKADA NAOKI
IPC分类号： G02B6/44 , H01B13/02
摘要： PROBLEM TO BE SOLVED: To make it possible to surely insert coated optical fibers into grooved filamentary bodies by constituting front end guiding pipes which are connected to the downstream side ends of coated fiber guiding cylinders by means of universal joints, project at the other end to the outward positions in the radial direction corresponding to the grooved filamentary body through-holes of a top dividing plate and guide the coated optical fibers in such a manner that these pipes are freely advanceable and retreatable in an axial direction. SOLUTION: The front end of a hollow drive shaft 71 is provided with the top dividing plate 7 bored with the plural grooved filamentary body through-holes 72 in circumferentially equally divided positions and is rotatably provided with the plural pieces of the hollow coated fiber guiding cylinders 6 in the circumferentially equally divided positions. In addition, the hollow drive shaft 71 is rotatably provided with the main dividing plate 5 bored with the same number of the grooved filamentary body through-holes 51. The front end guiding pipes 63 projecting to the positions corresponding to the grooved filamentary body through-holes 72 are connected via the universal joints 63A to the downstream side end of the coated fiber guiding cylinders 6 and are made extensible and contractable in the axial direction. The coated optical fibers within the coated fiber guiding cylinders 6 are inserted into the grooved filamentary bodies in the grooved filamentary body through-holes 51, 72 by bringing the front end guiding pipes 63 sufficiently near to the grooved filamentary body and are S-Z twisted by rotating the coated fiber guiding cylinders 6 via gear meshing parts 41, 61.

44. 发明专利

JPH1172664A OPTICAL FIBER CABLE 失效
公开(公告)号：JPH1172664A
公开(公告)日：1999-03-16
申请号：JP23156197
申请日：1997-08-27
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OKADA NAOKI , MIYAMOTO SUEHIRO , IWATA HIDEYUKI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide such an optical fiber cable which is excellent in a post branching characteristic, may be reduced in a production cost and allows multifiber formation. SOLUTION: This fiber cable 1 is constituted by disposing coated optical fiber layers 3 on slot type units 2 provided with a slot rod 5 having slot grooves 6 housing coated optical fibers 7 and forming the slot grooves 6 of the slot type units 2 to an S-Z twist form. The coated optical fiber layers 3 have trough- shaped structural bodies 9 twisted to the S-Z twist form on the circumference of the slot type units 2 and the coated optical fibers 10 housed in these trough- shaped structural bodies 9. The trough-shaped structural bodies 9 are stranded onto the slot type units 2 in such a manner that the inversion parts thereof exist right above the inversion parts of the slot grooves 6 of the slot type units 2.

45. 发明专利

JPH1138295A PRODUCTION OF AERIAL OPTICAL CABLE 失效
公开(公告)号：JPH1138295A
公开(公告)日：1999-02-12
申请号：JP19019197
申请日：1997-07-15
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： SATO YOSHIYASU , OKADA NAOKI , YAMANAKA MASAYOSHI , WATANABE HIROTO , MIYAMOTO SUEHIRO , IWATA HIDEYUKI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a process for producing an aerial optical cable capable of easily obtaining a slackened aerial optical cable surely printed with characters and symbols. SOLUTION: A supporting wire body and an optical cable core are simultaneously fed into a cross head die of an extruder and are subjected to simultaneous extrusion coating, to integrate the supporting wire body and the optical cable core into one body at a connecting part. The connecting part is intermittently separated in its longitudinal direction and in this state both are taken off by setting the traveling speed of the optical cable highly than the traveling speed of the supporting wire to put the optical cable into the state having the slack with respect to the supporting wire. The integrated assembly is then brought into contact with a plate drum 29 for printing and printed while the integrated assembly is wound around the outer periphery of a length adjusting roll 28 to the state of eliminating the slack of the optical cable and the supporting wire.

46. 发明专利

JPH10333003A PRODUCING DEVICE FOR AERIAL OPTICAL CABLE 失效
公开(公告)号：JPH10333003A
公开(公告)日：1998-12-18
申请号：JP14689997
申请日：1997-06-04
申请人： FUJIKURA LTD
发明人： SATO YOSHIYASU , OKADA NAOKI , YAMANAKA MASAYOSHI , WATANABE HIROTO , MIYAMOTO SUEHIRO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To obtain a product having stable quality regardless of the change of a producing condition by providing primary and secondary cooling devices with a mechanism for controlling the temperature of an optical cable and a subsidiary wire discharged from the exit of each device. SOLUTION: An intermediate product N is cooled by traveling in a primary cooling water tank 1, and it travels while bringing the subsidiary wire 11 and the optical cable 13 into contact with the outer peripheral surface of the excess length forming pulley 2, whereby excess length is obtained on the optical cable 13, then the product N is perfectly cooled by traveling in a secondary cooling water tank 3. In such a case, by changing a distance between the side surfaces 1a and 1c of the tank 1, the length of the product N in the tank 1 is changed and the temperature of the product N just after the product N is discharged from the tank 1 is controlled. By changing the distance between the side surfaces 3a and 3c of the tank 3, the length of the product N in the tank 3 is changed and the product N is completely cooled in the tank 3.

47. 发明专利

JPH10301005A WATER CUTOFF TAPE 失效
公开(公告)号：JPH10301005A
公开(公告)日：1998-11-13
申请号：JP10898297
申请日：1997-04-25
申请人： FUJIKURA RUBBER LTD , FUJIKURA LTD
发明人： WATANABE HIROSHI , TSUJI KAZUHIKO , OKADA NAOKI
IPC分类号： G02B6/44 , B32B5/32 , H01B7/28 , H01B7/282
摘要： PROBLEM TO BE SOLVED: To provide a water cutoff tape which prevents the leakage of a binder component for forming a water absorption layer from a base in a production stage by providing this tape with the water absorption layer which has excellent water stopping performance, to which water absorptive resin particles are securely held and which has good adhesiveness to the base. SOLUTION: This water cutoff tape has the base 1, a sealing layer 2 formed on the surface of this base 1 and the water absorption layer 3 formed on the surface of this sealing layer 2. The sealing layer 2 contains the rubber based binder and inorg. fillers. The water absorption layer 3 contains 100 pts.wt. water absorptive resin particles and 2 to 10 pts.wt. rubber based binder. More than 50% of the water absorptive resin particles have a grain size of 10 to 50 μm and the water absorptive resin particles of the particle size exceeding 100 μm substantially not incorporated therein.

48. 发明专利

JPH10301004A WATER CUTOFF TAPE 失效
公开(公告)号：JPH10301004A
公开(公告)日：1998-11-13
申请号：JP10898197
申请日：1997-04-25
申请人： FUJIKURA RUBBER LTD , FUJIKURA LTD
发明人： WATANABE HIROSHI , TSUJI KAZUHIKO , OKADA NAOKI
IPC分类号： G02B6/44 , B32B5/32 , B32B25/10 , H01B7/28 , H01B7/282
摘要： PROBLEM TO BE SOLVED: To provide a water cutoff tape which has a water absorption layer having homogeneity and excellent surface smoothness and prevents the leakage of a binder component for forming the water absorption layer from a base by providing this tape with the water absorption layer which has excellent water cutoff performance, to which water absorptive resin particles are securely held and which has good adhesiveness to the base and cover cloth. SOLUTION: This water cutoff tape consists of the base 1, a sealing layer 2 formed on the surface of this base 1 and the water absorption layer 3 formed on the surface of this sealing layer 2. The sealing layer 2 contains the rubber based binder and inorg. fillers. The water absorption layer 3 contains 100 pts.wt. water absorptive particles, 2 to 10 pts.wt. rubber based binder and 9.5 to 20 pts.wt. isocyanate compd.

49. 发明专利

JPH0943468A OPTICAL FIBER CABLE AND ITS PRODUCTION 失效
公开(公告)号：JPH0943468A
公开(公告)日：1997-02-14
申请号：JP21669795
申请日：1995-08-02
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OKADA NAOKI , YAMANAKA MASAYOSHI , WATANABE KOICHIRO , MIYAMOTO SUEHIRO , IWATA HIDEYUKI , HAYAMIZU SHIGEKAZU , NOZAWA MASARU
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To solve the problem of difficulty in production (extrusion molding) and to reduce a cost as the grooves of a tape slot type rod widely used as a small-fiber optical cable are spiral or S-Z shape. SOLUTION: The slot rod 22 having straight grooves 24 is formed. After coated fibers 16 are housed into the grooves 24 of the rod 22, the rod is fed into an extruder 36 while the rod is twisted to the S-Z form by a twisting device 34, by which the road is covered with a sheath 38. At this time, tension members 40 are fed simultaneously and are arranged into the sheath 38. The twisting of the cable is then prevented by the presence of the tension members 40 even if the core 32 is twisted to the S-Z form. The S-Z state is thus maintained. The production of the rod 22 is easy as the grooves 24 are straight. The rod 22 restores the straight shape and the coated fiber ribbons 16 come out of the grooves 24 of themselves when the sheath 38 is removed at the time of branching.

50. 发明专利

JPH08262295A MULTIPLE FIBER SLOT TYPE OPTICAL FIBER CABLE 失效
公开(公告)号：JPH08262295A
公开(公告)日：1996-10-11
申请号：JP8648395
申请日：1995-03-17
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OKADA NAOKI , WATANABE KOICHIRO , MIYAMOTO SUEHIRO , IWATA HIDEYUKI , NAKAMURA EIICHI
IPC分类号： G02B6/44
摘要： PURPOSE: To make it possible to maintain a good transmission characteristic at a wide range of temp. by packaging the coated fiber ribbons to be housed into grooves in such a manner that extra length rates increase in a specific range from the lowermost layer toward the uppermost layer. CONSTITUTION: The coated fiber ribbons 10 are packaged by increasing the extra length rates from the lower layers toward the upper layers in such a manner that the extra length rate of the lowermost layer ribbon JOB at 25 deg.C of the coated fiber ribbons attains -0.02 to 0.02% and that the extra length rate of the uppermost layer ribbon 10T attains 0.03 to 0.10%. The ribbon 10B of the lowermost layer, therefore, has substantially no extra length when elongation arises in the optical cable 4 as temp. rises highly and consequently, the optical cable 40 eventually elongates by as much as the same length (b) as the length of the optical cable 40. Tension is thus applied on the coated fiber ribbons 10. On the other hand, some extra length exists in the ribbon 10T of the uppermost layer and, therefore, the ribbon begins to elongate after there is no more (y) of the extra length. Then, the final elongation (t) decreases and, therefore, the stress acting on the ribbon 10B of the lowermost layer decrease as well. The coated fiber ribbons from the ribbon 10B of the lowermost layer to the ribbon 10T of the uppermost layer have the respectively intermediate characteristics.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式