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1. 发明专利

JP2002325318A POWER SWITCHING CONTROL CIRCUIT FOR POWER RECEIVING/ DISTRIBUTING FACILITIES 失效
公开(公告)号：JP2002325318A
公开(公告)日：2002-11-08
申请号：JP2001127675
申请日：2001-04-25
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO , TANAKA MUTSUYASU , KAZUTAMA TETSUYA , HIRANO KENICHI
IPC分类号： H02B3/00 , H02B5/00 , H02B7/06 , H02H7/26
摘要： PROBLEM TO BE SOLVED: To achieve a power switching control circuit which does not use long-term continuous excitated type controls. SOLUTION: The power switching control circuit, which provides switching control for a plurality of substation equipment or switchgears composing a power receiving-distribution facilities, is restricted in use, such controls which becomes long-term excitation by using circuit alteration or keep relay.

2. 发明专利

JPH02112114A COATING METHOD OF LONGITUDINALLY LAID TAPE IN CABLE 失效
公开(公告)号：JPH02112114A
公开(公告)日：1990-04-24
申请号：JP26549088
申请日：1988-10-21
申请人： FUJIKURA LTD
发明人： HASE MASAMI , IKEGAMI MASAHIRO , NAGANO ICHIRO , SUGIYAMA MATSUJIRO , KIMURA JUNICHI
IPC分类号： H01B13/26
摘要： PURPOSE:To prevent a poor adhesion by spraying a hot air from a hot air injection nozzle uniformly to the tape edge part held up and supported by a spatula from its outermost side. CONSTITUTION:In the coating to a cable core 1, a molded body 3a of a longitudinally laid type pipe form is lapped with the tape edge part 7a on its one end being superposed from the upper side, and in this lap part 7, a spatula 8 holding up and supporting the tape edge part 7a used also as a dislocation detecting auxiliary plate of a joint part automatic following device A from the inside and a hot air injection nozzle 9 for injecting a hot air to the inside part of the tape edge part 7a are disposed. The joint part automatic following device A has a rotating body 10 rotatably disposed with the cable core 1 as the center, and on the rear surface side of the rotating body 10, a molding roller 11 for pressing and adhering the lap part 7 of the pipe molded body 3a and molding is disposed. A sufficient adhesion effect can be achieved by only the press by the molding roller 11 when the adhesive layer 4 is fused by the hot air from the hot air injection nozzle 9.

3. 发明专利

JPH05151847A DRAW CONTROL METHOD FOR WIRE CLADDING LINE 失效
公开(公告)号：JPH05151847A
公开(公告)日：1993-06-18
申请号：JP33631291
申请日：1991-11-26
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO
IPC分类号： G05D5/03 , H01B13/14
摘要： PURPOSE:To reliably operate an electric-wire cladding line and prevent occurrence of any accidental trouble by controlling the driving speed of a slave with use of a multiplication value obtained through multiplication of a counter-logarithmic value of a draw ratio setting value and a master signal to thereby reduce the number of causes by which the accidental trouble occurs. CONSTITUTION:A counter-logarithmic value calculation means 12 is connected to a draw-ratio setting means 11 to determine the value of 10 from a draw-ratio setting signal ei, and calculates a counter-logarithmic signal 10 in the case where the value of n varies between +1 and -1. Next, a multiplication value calculation means 13 determines a product of a signal eo and a master signal eh prepared by causing a detection signal from a conductor delivery speed detection means 6 to pass through a voltage converter, etc., and thereby converting it into a low-voltage value, to generate the product signal as a slave setting signal es. Thus, the extrusion speed adjustment is made in response to the signal es while, on the other hand, the extrusion speed detection is sequentially performed by an extrusion speed detection means and the resulting detection signal is fed back. The draw ratio is accurately set in this manner. This enables making easy the control of the slave driving speed and simplifying the control circuit to lessen the danger of occurrence of an accidental trouble.

4. 发明专利

JPH0361333A HEATING TEMPERATURE REGULATOR FOR TRAVELING WIRE BODY 失效
公开(公告)号：JPH0361333A
公开(公告)日：1991-03-18
申请号：JP19458689
申请日：1989-07-27
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO , YOSHIKAWA SATORU , KATSUHARA TOSHIJI
IPC分类号： C21D9/60 , G05D23/00
摘要： PURPOSE:To accurately regulate the temp. of a traveling wire body in a short period of time by compensating the deviation in the zero point in the input characteristics of a heating means and controlling a means for regulating electric energy at the point of the time when a line speed is changed. CONSTITUTION:The temp. before heating of the wire body W is measured by a temp. detecting section 33 and is inputted to a control section 13. The heating temp. of the wire body W is inputted from a setter to the control section 13. An output setting volume control 14a is regulated after the control section 13 starts operating. The control section 13 reads the voltage of the output setting volume control, output voltage, output current and line speed voltage therein and determines a reference electric power from these values. The output setting volume control 14a is regulated again to determine the true temp. before heating when the temp. before heating, etc., change. The control section 13 substitutes the previously stored voltage of the setting volume control, reference output voltage, reference output current and reference line speed voltage with the present values and determines the fresh reference electric power.

5. 发明专利

JPH0215520A MANUFACTURE OF INTERPOSED LINEAR SUBSTANCE CONTAINED CABLE 失效
公开(公告)号：JPH0215520A
公开(公告)日：1990-01-19
申请号：JP16265288
申请日：1988-07-01
申请人： FUJIKURA LTD
发明人： TSUCHIYA KAZUE , CHIKASAWA TAKAYUKI , IKEGAMI MASAHIRO
IPC分类号： H01B13/02
摘要： PURPOSE:To improve flexibility so as to enable the cross section of a cable to be held in a round shape by giving an SZ twist, which reverses the twisting direction at every proper number of twistings, to each interposed linear substance which is annexed longitudinally to a cable core. CONSTITUTION:An SZ twist to reverse the twisting direction at every proper number of twistings is given to each interposed linear substance 2 which is annexed longitudinally to a cable core 2, and the time of the reversion period of the twisting of the SZ twist for each interposed linear substance 2 is staggered reciprocally. Hereby, the interposed linear substances 2 become uniform in strength with regard to the longitudinal direction and the flexibility increases, and it becomes one which hardly causes the peculiarity (buckling) of crimp. Also, by sliding the reversing point of the SZ twist reciprocally in the longitudinal direction of the cable, the size in the longitudinal direction of the cable is equalized and the round shape can be maintained.

6. 发明专利

JPS63314792A HEATING TEMPERATURE ADJUSTING DEVICE FOR RUNNING WIRE 失效
公开(公告)号：JPS63314792A
公开(公告)日：1988-12-22
申请号：JP15041187
申请日：1987-06-17
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO , KATSUHARA TOSHIJI
IPC分类号： H05B6/06 , H05B6/10
摘要： PURPOSE:To attain the target temp. precisely by calculating temp. rise of a running wire with a control means, and adjusting the input heat amount of an electric heating means in accordance with the data of temp. rise. CONSTITUTION:A control means 12 calculates the corrected heating input amount from comparison of the sensed temp. given by a temp. sensor 4 with the target temp. given by a data input part 15, the data of a linear velocity sensing means 2 consisting of a contact roller 2a and a tacho generator 2b, and the initial temp. and the reference heating input amount. In the control means 12, namely, the ratio of the temp. rise data corresponding to the input heat amount due to either initial or arbitrary regular/reverse thyristors 6, 7 to the target temp. rise data is multiplied 13 with input heat amount, and thus a power amount adjusting means 3 is driven. In case the target temp. rise is not obtained by the first time corrected heating input amount or in case the linear velocity has varied, correction is repeated on the basis of specified computations.

7. 发明专利

JPH07198366A LENGTH MEASURING ERROR DISPLAY APPARATUS 失效
公开(公告)号：JPH07198366A
公开(公告)日：1995-08-01
申请号：JP33760793
申请日：1993-12-28
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO
IPC分类号： G01B21/06
摘要： PURPOSE:To detect a length measuring error while an apparatus is being operated by a method wherein the length measuring error at every pulse spacing is computed on the basis of the clocked value of a pulse spacing by a pulse encoder and on the basis of a definite value decided by a mechanical constitution. CONSTITUTION:A length measuring error display device 11 sets registers Lepsilon to Lepsilon (Lepsilon to Lepsilon3 hold length measuring errors at a first inspection cycle to a third inspection cycle and Lepsilon holds their integrated value) to a value 0. When it detects the pulse rise of a pulse encoder 4, it starts a timer T,, and it starts to clock the first inspection cycle. A linear-velocity signal V at this time is taken into from a linear-velocity detector 12c, and its value is set in a register V1. In addition, a timer T2 for second- detection-cycle clocking is reset, the pulse rise is detected again, the timer T1 is stopped, a clocking operation at the first detection cycle is finished, and a clocking operation at the second detection cycle is started. A clocking error epsilon1 at the first detection cycle is computed on the basis of epsilon1=t1 (clocked time by timer T1)XV1 (value of register V1) L (constant by mechnical constitution), and it is integrated and displayed in the register Lepsilon. The second and third detection cycles are processed in the same manner.

8. 发明专利

JPH05151845A COOLING-WATER LEVEL CONTROL DEVICE FOR INCLINED-TYPE CABLE CONTINUOUS CROSSLINKING APPARATUS 失效
公开(公告)号：JPH05151845A
公开(公告)日：1993-06-18
申请号：JP33631391
申请日：1991-11-26
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO , UCHIYAMA KAZUHIRO , HOSOYA KOJI , SUZUKI ATSUSHI , KATSUHARA TOSHIJI , NIHONYANAGI KAZUYUKI , YOSHIKAWA SATORU
IPC分类号： G05D9/12 , H01B13/14
摘要： PURPOSE:To enable manufacturing a good quality of cable by providing a cooling-water feeding means, a feed-water flow control means, and an interfacial drawing-off means, thereby reliably adjusting the water level of a cooling water and making a crosslinking device operation smooth. CONSTITUTION:When starting a cooling-water level control device, a feed-water flow control means 60 is operated, and a flow detection is made. At the same time, limitation is made of the degree of opening of the flow channels and the number of revolutions of a pump in a cooling-water feeding means 54, so as to make a control to maintain the quantity of feed water to be fixed, independently of the internal pressure of a crosslinking pipe 50. When the water level in a cooling section 52 amounts to several tens of percent, a state of feeding a fixed-flow cooling water is changed to a flow-controlled state based on the water level in the cooling section 52 and the quantity of feed water. Under a condition in which the cooling water in the section 52 reaches a maximal level to flow down from a water discharge pipe 57, regulation is made of the cooling-water transfer quantity in accordance with the water level in a storage water tub 58. Further, the suspended matter mixed into the cooling water is removed through operation of an interfacial draw-off means 62. This enables accurately controlling the quantity of feed water and reliably regulating the level of the water to produce a cable smoothly and reliably.

9. 发明专利

JPH07105768A CONTROL METHOD FOR VERTICAL TYPE CONTINUOUS VALCANIZING MACHINE FOR ELECTRIC POWER CABLE 失效
公开(公告)号：JPH07105768A
公开(公告)日：1995-04-21
申请号：JP24573193
申请日：1993-09-30
申请人： FUJIKURA LTD
发明人： IKEGAMI MASAHIRO , TANAKA MUTSUYASU , SUZUKI ATSUSHI , ISHIKAWA TORAICHI , KATSUHARA TOSHIJI
IPC分类号： H01B13/14 , G05D13/62
摘要： PURPOSE:To prevent the occurrence of a runaway accident to increase follow-up performance at the time of a rise by adjusting the pulling tension of a traveling thread body through adjusting a pulling speed, and changing set tension in accordance with a traveling thread length to control the wire tension in the outlet of a valcanizing machine. CONSTITUTION:A conductor 2 delivered from a delivery device 1 is sent to an extruding head 4a by a delivering machine 3, an insulated body from extruders 4A... is coated and then is valvanized by a valcanizing machine 5, and the traveling wire thread body W of an obtained coated electric wire is wound by a winder 7 via a pulling machine 6. At that time, the tension of the traveling wire thread body W is detected by a tension sensor 8 to adjust a pulling speed via a controller 9 in accordance with a detected value. In a control method for the vertical type continuous valcanizer of the electric power cable, pulling tension is corrected via a pulling speed, and also is changed in accordance with the thread length of the traveling wire thread body W from starting time of a line to give wire tension in the reverse direction to the proceeding direction of the valcanizer 5 even after passing the outlet of the valcanizer 5. Consequently the variation of a line wire bundle can be restrained to follow to wire tension change.

10. 发明专利

JPS62236307A WORKING SYSTEM FOR OVERHEAD TRANSMISSION LINE 失效
公开(公告)号：JPS62236307A
公开(公告)日：1987-10-16
申请号：JP8044286
申请日：1986-04-08
申请人： FUJIKURA LTD
发明人： OMORI SHIGEO , IKEGAMI MASAHIRO , SHIMOKUBO YOSHIMITSU
IPC分类号： H02G1/02

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