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1. 发明专利

JPH08329753A HEAT PROTECTIVE DEVICE OF METALLIC SHEATH EXTRUDER 失效
公开(公告)号：JPH08329753A
公开(公告)日：1996-12-13
申请号：JP16018195
申请日：1995-06-05
申请人： HITACHI CABLE
发明人： OZAKI TSUNEO , NODA NIRO , SAKUYAMA EIJI
IPC分类号： H01B13/24
摘要： PURPOSE: To provide a heat protective device of a metallic sheath extruder by which the heat protective device itself hardly becomes a high temperature by intense heat at metallic sheath extruding time and which is improved so that heat is easily diffused. CONSTITUTION: In a heat protective device which is composed of a heat protective cylinder part 51 to circulate a cooling medium and a tapering nozzle extending from its tip and in which a nozzle part 52 is inserted and arranged in core metal of a metallic sheath extruder, the heat protective device of the metallic sheath extruder is constituted in such a way that an outer peripheral surface of the heat protective device is covered with a heat reflective member 21 composed of a heat nonconductive material, and an inner peripheral surface of the heat protective device is covered with a heat conductive member 22, and the heat protective device can be maintained at a low temperature. In the heat protective device of the metallic sheath extruder, the heat reflective member 21 composed of a heat nonconductive material to be formed on an outer peripheral surface of the protective device is formed in a structure that a heat reflecting plate or a heat reflecting sheet is integrally formed on an outer peripheral surface of the protective device.

2. 发明专利

JPH03190015A POWER CABLE LAID IN DUCT 失效
公开(公告)号：JPH03190015A
公开(公告)日：1991-08-20
申请号：JP32985689
申请日：1989-12-19
申请人： HITACHI CABLE
发明人： OZAKI TSUNEO , SASAKI TSUTOMU
IPC分类号： H01B7/17 , H01B7/18
摘要： PURPOSE:To form a power cable laid in a duct integrated with a sheath, by forming a filament material, wound around a cable core in spiral and capable of being pressed with the sheath. CONSTITUTION:A filament material 3 having a high rigidity and flexibility, for example, a metal steel wire, is wound around the periphery of a cable core 2 in spiral with a predetermined pitch, and this periphery is formed by integral extrusion molding and covering of the plastic sheath 4 to form a cable 1 laid in a duct. Consequently, a projection 5 is formed on the periphery of the spiral filament material 3, and since the filament material 3 is buried in the projection 5, the strength of the projection 5 is considerably stronger than in the case of integral formation only with the plastic sheath. Consequently, a danger that a pitch of the spiral projection is changed at the time of pulling the cable 1 into a duct is eliminated, and a snake can be expected in the duct.

3. 发明专利

JPH1040756A MANUFACTURE OF ELECTRIC WIRE PROVIDED WITH ROTATION FIN IN CONTINUOUSLY EXTRUDING CROSS-LINKING APPARATUS 失效
公开(公告)号：JPH1040756A
公开(公告)日：1998-02-13
申请号：JP19907096
申请日：1996-07-29
申请人： HITACHI CABLE
发明人： YAMASHITA KOICHI , TAKAHASHI AKITETSU , OZAKI TSUNEO
IPC分类号： B29C48/33 , H01B13/14 , B29C47/24
摘要： PROBLEM TO BE SOLVED: To prevent high temperature steam and a high temperature and high pressure gas from leaking out of an interface of a rotation part by manufacturing an electric wire provided with a rotation fin while sealing the interface between mutually rotating a rotation die having a fin forming groove and a head of an extruding apparatus by pouring a lubrication material to the interface. SOLUTION: In manufacturing electric wires provided with a rotation fin, a lubrication material pouring route 91 is formed in a plug 9 for coming out prevention and the outlet of the route 91 is set to be a tip end face for screwing the plug itself and opened toward the interface between a head 2 of an extruding apparatus and a rotation die 3 having a fin forming groove where both of the head 2 and the die 3 are relatively rotated. A lubrication material 23 is poured into the interface between the head 2 of an extruding apparatus and the rotation die 3 having a fin forming groove where both of the head 2 and the die 3 are relatively rotated by continuously pouring the lubrication material 23 into the route 91 and the interface of the relatively rotating parts where a gap is easily formed is constantly sealed. Consequently, in the case a cross-linking work is carried out, high pressure steam in a crosslinking cylinder 8 can be prevented from leaking out of the interface through a communication cylinder 5.

4. 发明专利

JPH02284310A MANUFACTURE OF ROUND CABLE 失效
公开(公告)号：JPH02284310A
公开(公告)日：1990-11-21
申请号：JP10554089
申请日：1989-04-25
申请人： HITACHI CABLE
发明人： SUGAYA TSUNEO , OIKAWA KAZUAKI , SAITO ISAMU , OZAKI TSUNEO , TASAI YOSHINORI , KIMOTO MITSUO
IPC分类号： H01B13/00
摘要： PURPOSE:To improve working property by inserting a flat cable into a spiral die having a slit or channel having a spiral cross section, thereby rolling the flat cable into spiral form in the right-angled direction to its longitudinal direction, then immediately conducting taping, and coating a plastic sheath thereon. CONSTITUTION:A flat cable 1 is sent out from a bobbin on which the cable 1 is wound, and inserted into a spiral die 5. The inserted flat cable 1 is spirally wound on the spiral die 6 in the right-angled direction to its longitudinal direction and molded into round form. The flat cable 1 is immediately subjected to taping 2 by a taping machine to keep the round form stably. Finally, the round form flat cable 1 pressed by the taping 2 is introduced into an extruder, and a plastic sheath 3 is extruded on the cable 1 to apply a coat thereon. Hence, the flat cable molded into round form can be continuously manufactured.

5. 发明专利

JPH01117620A OFFSET PART OF CABLE 失效
公开(公告)号：JPH01117620A
公开(公告)日：1989-05-10
申请号：JP27276887
申请日：1987-10-28
申请人： HITACHI CABLE
发明人： OZAKI TSUNEO , KATO HAJIME
IPC分类号： H02G9/02
摘要： PURPOSE:To lighten the influence of vibration of a bridge, by enabling maintaining a desired shape against the extension of a cable through balancing the weight of a trough type guide with the tension of a weighted suspension wire. CONSTITUTION:A cable 3 laid in a duct 2 added to a bridge 3 is caused to hang down in a substantial S shape in the offset part 4, and its tip is guided to a connection box 7 installed and fixed on the land side and connected with another cable 6. A trough type guide 5 arranged along the lower side of the upper side semicircular part 4a of the offset part 4 is formed into a circular shape coinciding with the original curved shape. Said trough type guide 5 is provided with cable-holding parts 10, 11, 12, which are fitted with wires 13, 14, 15 via helical springs 16, 17, 18, which draw up said cable-holding parts 10, 11, 12 by weights 13, 14, 15.

6. 发明专利

JPH081122A CONTINUOUS CLEANING DEVICE OF LONG OBJECT 失效
公开(公告)号：JPH081122A
公开(公告)日：1996-01-09
申请号：JP15642894
申请日：1994-06-16
申请人： HITACHI CABLE
发明人： OZAKI TSUNEO , NEMOTO SHIGENORI , KIMURA TADASHI , YOSHIMOTO MITSUO , NAGATOMO KATSU
IPC分类号： B08B11/00 , B08B3/12 , B60M1/13 , B60M7/00
摘要： PURPOSE:To clean the surface of a long object such as a metal tape using a cleaning agent containing no chlorine at all by circulating a cleaning liquid in an area between a cleaning tank part and a cleaning liquid tank, then supplying the cleaning liquid regenerated by a distillation/regeneration device to a rinse tank part, and at the same time, blowing a hot blast using a drying part. CONSTITUTION:A cleaning device consists of three partitioned areas, that is, a cleaning tank part 31, a rinse tank part 32 and a drying part 33, connected in a tandem fashion. In addition, a metal tape 9 is conducted through the cleaning tank part 31 with an ultrasonic generator 19 from a feed-out roll 21. In this case, a cleaning liquid 18 in the cleaning tank part 31 is connected by piping so that it overflows, running into a cleaning liquid tank 23. Next, a rinse process using a cleaning liquid is performed in the rinse tank part 32. A rinse liquid containing no oily component is obtained by pumping up the cleaning liquid into a distillation/regeneration device and distillating the liquid. After that, the metal tape 9 is allowed to pass through a drying part 33 and is dried using a hot blast, and then is taken up by a winding roll 22 after running the tape 9 through a grinding device 12.

7. 发明专利

JPH07116696A PRESERVING METHOD FOR WATER QUALITY IN WATER-STORAGE DAM 失效
公开(公告)号：JPH07116696A
公开(公告)日：1995-05-09
申请号：JP29769293
申请日：1993-11-29
申请人： HITACHI CABLE
发明人： OZAKI TSUNEO , TANJI TSUTOMU , KASHIWAZAKI KATSUMI
IPC分类号： E02B7/00 , C02F7/00
摘要： PURPOSE:To effectively preserve water quality in a dam by laying an air bubble- generating pipeline having a hole for injecting the air bubble in the vicinity of the submerged base of a water-storage dam and force-feeding air into the air bubble-generating pipeline to generate numerous air bubbles from the base of the water-storage dam. CONSTITUTION:Air feeders 6-8 instaled on the top face of a concrete wall 2 are mainly constituted of an air force-feeding means such as a compressor. Air bubble-generating pipelines 9-11 are connected to the respective air feeders 6-8 and fixedly provided on the submerged base in a dam 1 at the proper intervals. Compressed air is fed into the respective air bubble-generating pipelines 9-11 by actuating the respective air feeders 6-8. Large parts of compressed air are discharged into water in the dam 1 through the midway holes 12. While these are floated as the air bubbles, these are continuously brought into contact with water in the dam 1 and oxygen contained in water is increased. Thereby decomposition of miscellaneous germs is activated by bacteria and water quality in the water-storage dam is preserved.

8. 发明专利

JPH05312655A 失效
公开(公告)号：JPH05312655A
公开(公告)日：1993-11-22
申请号：JP11492892
申请日：1992-05-07
申请人： HITACHI CABLE
发明人： HAYASHINAKA TOSHIO , OZAKI TSUNEO
IPC分类号： G01K1/14 , G01K7/02
摘要： PURPOSE:To obtain a contact-type temperature detector which achieves a specified press contact in conformity with a large deformation of an object to be measured and has an improved reproducibility without any danger of crack. CONSTITUTION:A detection part (thermocouple) 3 which contacts the surface of an object 4 to be measured is provided at the tip, a capsule 11 in cylindrical shape with bottom is inserted to a metal sheath 8 which is relayed to a compensation conductor 10 so that it can travel in axial direction, and then a holder 9 is mounted to the capsule 11 at a position which is close to the side of the object to be measured. A spring 6 is stored in the capsule 11 and then the capsule 11 and the metal sheath 8 are connected by the spring 6 from the axial direction. A stop ring 5 and a sliding ring 7 are provided for connection.

9. 发明专利

JPH0525786A CABLE WITH MULTILAYERED PROTECTIVE COATING 失效
公开(公告)号：JPH0525786A
公开(公告)日：1993-02-02
申请号：JP17017591
申请日：1991-07-10
申请人： HITACHI CABLE
发明人： SUGAYA TSUNEO , NIIMURA TATSUO , SASAKI TSUTOMU , OZAKI TSUNEO
IPC分类号： D07B1/16
摘要： PURPOSE:To obtain the subject product capable of recovering beautiful appearance simply by peeling the outermost layer in fading the outer surface by providing an anticorrosive layer on the periphery of a cable body and further forming plural colored protective covering layers of a specific construction thereon. CONSTITUTION:A cable with a multilayered protective covering is obtained by providing an anticorrosive layer 2 on the periphery of a cable body 1 and further forming plural colored protective covering layers 3 to 5 having grooves 31, 41 and 51 in the longitudinal direction except respective end faces on the aforementioned anticorrosive layer 2. When the above-mentioned cable is installed and then becomes unfavorable for beautiful appearance, a cutter blade is fed into the groove 51 of the protective covering layer 5 in the outermost layer to peel off the protective covering layer 5. Furthermore, high-density polyethylene containing 2-3% carbon blended therein is preferred as the anticorrosive layer. Polyethylene, nylon, chloroprene rubber, etc., are preferably used as the protective covering layer.

10. 发明专利

JP2546376B2 失效
公开(公告)号：JP2546376B2
公开(公告)日：1996-10-23
申请号：JP16315789
申请日：1989-06-26
申请人： HITACHI CABLE
发明人： OZAKI TSUNEO , SUGAYA TSUNEO , OIKAWA KAZUAKI , SAITO ISAMU , TASAI YOSHINORI , KIMOTO MITSUO
IPC分类号： H01B13/00

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