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41. 发明专利

JPS6477004A METHOD AND DEVICE FOR SWITCHING CONNECTOR 失效
公开(公告)号：JPS6477004A
公开(公告)日：1989-03-23
申请号：JP14004088
申请日：1988-06-07
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YAMAGUCHI SHIZUKA , SASAKI KOJI , KINOSHITA ISAMU , MIYAZAWA KAZUHIRO
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To shorten the cessation time of light at the time of switching by drawing out and inserting a fitting pin by dividing said actions into on-the-way and its subsequent process, and releasing a connector to a connected state before switching, in accordance with necessity on the way of switching. CONSTITUTION:A fitting pin P is drawn out of one of connectors 1, 2 which have been connected, one connector 1 into which this fitting pin P has been inserted is moved to a position opposed to a connector 3 of a switching side, and the fitting pin P which has been inserted into its connector 1 is inserted into the connector 3 of the switching side. On the way of this insertion, a transmission loss of the connected part of the connector 1 and 3 is measured. In case when the transmission loss is larger than a prescribed value, since the connection of the connector 1 and 3 is insufficient, the connector 1 is released to the connected state before switching from its position on the way. In such a way, comparing with the case when the transmission loss is measured after switching has been completed, there is no waste in switching, and the cessation time of light can be shortened.

42. 发明专利

JPS63311217A OPTICAL CONNECTOR SWITCHING METHOD 失效
公开(公告)号：JPS63311217A
公开(公告)日：1988-12-20
申请号：JP14539487
申请日：1987-06-12
申请人： FURUKAWA ELECTRIC CO LTD
发明人： MIYAZAWA KAZUHIRO , YAMAGUCHI SHIZUKA , KINOSHITA ISAMU , SASAKI KOJI
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To shorten the light shielding period of a spectral line, by predicting the operation response delay time of an actuator relating to the switching of an optical connector, and supplying a start up signal to the actuator in advance corresponding to the operation response delay time. CONSTITUTION:The alignment of a first optical connector 30 and a second optical connector 31 is performed by fitting a fitting pin 34 so as to stride them and the fitting pin 34 of the connection part of an optical line connected optically is withdrawn from the second optical connector 31, and the connection of those optical connectors is canceled, and after that, the first optical connector 30 is moved relatively to a prescribed position confronting with a third optical connector 32, then, the alignment of them is performed, and a state is switched to the one connected optically. At this time, the operation response delay time of the actuator 45 relating to the switching of the optical connector at least in the light shielding period of the optical line is predicted, and the start up signal is supplied to the actuator 45 in advance corresponding to the operation response delay time. In such a way, a wasteful time is eliminated, and it is possible to shorten the interruption time of an optical signal at the time of switching and to maintain the hot-line state of the optical line.

43. 发明专利

JPS63304211A METHOD FOR SWITCHING OPTICAL CONNECTOR 失效
公开(公告)号：JPS63304211A
公开(公告)日：1988-12-12
申请号：JP13993787
申请日：1987-06-05
申请人： FURUKAWA ELECTRIC CO LTD
发明人： SASAKI KOJI , YAMAGUCHI SHIZUKA , KINOSHITA ISAMU , MIYAZAWA KAZUHIRO
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To shorten the interruption period of optical lines by detaching a 2nd optical connector from a 1st optical connector and moving a 3rd optical connector to the connecting position to the 1st optical connector while a 1st pin pushing bar is inserted into the fitting hole of the 2nd optical connector. CONSTITUTION:The 2nd optical connector 2 is detached from the 1st optical connector 1 while the 1st pin pushing bar 5 is held inserted into the fitting hole 2c of the 2nd optical connector 2 after a fitting pin 8 fitted into the fitting hole 2c of the 2nd optical connector 2 is pushed out by the 1st pin pushing bar 5. The 3rd optical connector 3 is moved to the connecting position to the 1st optical connector 1 in this state. The time for pulling the 1st pin pushing bar 5 out of the fitting hole 2c of the 2nd optical connector 2 is thereby eliminated and the collision of the optical fiber core connected to the optical connector against the pin pushing bar 5 at the time of moving the optical connectors is obviated.

44. 发明专利

JPS63303310A OPTICAL CONNECTOR AND SWITCHING METHOD THEREOF 失效
公开(公告)号：JPS63303310A
公开(公告)日：1988-12-09
申请号：JP13825687
申请日：1987-06-03
申请人： FURUKAWA ELECTRIC CO LTD
发明人： SASAKI KOJI , YAMAGUCHI SHIZUKA , KINOSHITA ISAMU , MIYAZAWA KAZUHIRO
IPC分类号： G02B6/38
摘要： PURPOSE:To shorten the time when communication is interrupted at the time of switching of optical connectors by setting the length of a sleeve at the length smaller than the length in the front end part of the ferrule. CONSTITUTION:The ferrule 1 mounted to the end part of an optical fiber 3 has a circular columnar front end part 5 to be fitted to a sleeve 2 at the end of a collar part 4 and the peripheral face of this part 5 is so formed that the axial center thereof aligns to the fiber 3. On the other hand, the sleeve 2 is longitudinally formed with a slit 6 and is so formed as to tighten the part 5 by its own elasticity. The length L of the sleeve 2 is made shorter than the length M of the part 5. The switching method using the optical connector constituted in such a manner is executed by first pulling the sleeve 2 onto the one ferrule while maintaining the butt state of the two ferrules. The ferrule is then laterally moved together with the sleeve 2 and is butted against the 3rd ferrule and the sleeve 2 is moved so as to be disposed across the front end parts of the two ferrules. The rapid switching is executed by eliminating or sufficiently lessening the movement of the ferrule in the axial line direction at this time.

45. 发明专利

JPS63281071A DETECTING METHOD FOR DEFECT IN TERMINAL CRIMPING OF TERMINAL-CRIMPED ELECTRIC CONDUCTOR 失效
公开(公告)号：JPS63281071A
公开(公告)日：1988-11-17
申请号：JP11442387
申请日：1987-05-13
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ABE FUMIHIKO , YAMAMOTO YOSHIO , YAMAGUCHI SHIZUKA
IPC分类号： G01R31/04 , G01R31/00 , H01R43/048
摘要： PURPOSE:To detect the terminal crimping defect of an electric conductor by detecting a force applied to a press at the time of terminal crimping, acquiring variation in the force with time as a pattern, and deciding the defect in crimping. CONSTITUTION:When a pattern pressure part crimps a terminal, a reaction is applied to a ram 6 in the crimping and a column 6a is strained. This strain is detected 10 and a corresponding electric signal V is outputted. The signal V is amplified 21 and inputted to an A/D converter 22 and a comparator 23. Then the signal V is compared 23 with a reference signal Vs and when V>Vs, a trigger signal Pt is outputted to trigger the converter 22. The converter 22 when applied with the trigger signal Pt samples the waveform of the input signal V, performs A/D conversion, and stores the waveform in a memory 4 in time series. A CPU 25 stores the signal waveform in a normal crimping state which is stored and compares the normal waveform with the waveform of each crimped terminal successively to decide whether or not the waveform is normal, thereby outputting an abnormality decision signal V0 when deciding the waveform is abnormal.

46. 发明专利

JPS63267904A OPTICAL CONNECTOR AND ITS SWITCHING METHOD 失效
公开(公告)号：JPS63267904A
公开(公告)日：1988-11-04
申请号：JP10206087
申请日：1987-04-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： SASAKI KOJI , YAMAGUCHI SHIZUKA
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To easily and accurately position an optical connector by forming a positioning projection, which has a pin guide hole having the same axial line as a pin hole in the center, on the side opposite to a joint surface to the optical connector. CONSTITUTION:An optical fiber 22 is so fixed that its end face is exposed on a joint surface 23 to the other optical connector, and a aligning pin hole 24 is formed perpendicularly to the joint surface 23 while keeping fixed position al relations to the optical fiber 22. A cylindrical positioning projection 25 which has a pin guide hole 24a having the same axial line as the pin hole 24 in the center is formed on the face opposite to the joint surface 23. Connector holders 31 and 35 are moved toward each other to fit positioning projections of optical connectors and positioning holes 32, 36, and 37 of connector holders to each other. Thus, optical connectors 21A-21C are accurately positioned in prescribed positions on the basis of pin holes 24.

47. 发明专利

JPS63231306A OPTICAL CONNECTOR AND METHOD FOR CHANGING OVER SAID CONNECTOR 失效
公开(公告)号：JPS63231306A
公开(公告)日：1988-09-27
申请号：JP6400187
申请日：1987-03-20
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YAMAGUCHI SHIZUKA , SASAKI KOJI
IPC分类号： G02B6/38 , G02B26/08
摘要： PURPOSE:To permit simpler and exacter positioning of an optical connector at the time of changing over the connector by constituting a device in such a manner that the optical connector is positioned by positioning holes having the diameter larger than the diameter of pin holes formed on the same axial line as the axial line of the pin holes. CONSTITUTION:An optical fiber 22 is so fixed that the end face thereof is exposed to a joint face 23 to the mating side optical connector 21 and the pin holes 24 for alignment are formed perpendicularly to the joint surface 23 in a manner as to maintain the specified positional relation with the optical fiber 22. The positioning holes 25 having the diameter larger than the diameter of the pin holes 24 are formed to the side of such optical connector 21 opposite from the joint surface 23 by aligning the axial line thereof to the axial line of the pin holes 24. Since the positioning of the optical connector is executed on the basis of such positioning holes 25, the easy and exact positioning of the optical connector is permitted at the time of changing over the optical connector; in addition, the hindrance in the insertion and removal of fitting pins 26 is obviated.

48. 发明专利

JPS63170874A METHOD OF INSERTING TERMINAL INTO CONNECTOR HOUSING 失效
公开(公告)号：JPS63170874A
公开(公告)日：1988-07-14
申请号：JP152187
申请日：1987-01-07
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YAMAGUCHI SHIZUKA , UENO YOSHIHIKO , SASAKI KOJI
IPC分类号： H01R43/00

49. 发明专利

JPS63160183A TERMINAL AUTOMATIC INSERTER FOR CONNECTOR 失效
公开(公告)号：JPS63160183A
公开(公告)日：1988-07-02
申请号：JP30627386
申请日：1986-12-24
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YAMAGUCHI SHIZUKA , UENO YOSHIHIKO , SASAKI KOJI
IPC分类号： H01R43/00

50. 发明专利

JPS6282680A AUTOMATIC ARRANGEMENT APPARATUS OF MULTICORE CABLE CONDUCTORS 失效
公开(公告)号：JPS6282680A
公开(公告)日：1987-04-16
申请号：JP22159785
申请日：1985-10-04
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KINOSHITA ISAMU , YAMAGUCHI SHIZUKA , OOMIZU KIYONORI
IPC分类号： H01R43/01 , H01R43/00

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