WO2012128381A1 - Method and device for inspecting conduction of covered electric wire - Google Patents

Method and device for inspecting conduction of covered electric wire Download PDF

Info

Publication number
WO2012128381A1
WO2012128381A1 PCT/JP2012/057674 JP2012057674W WO2012128381A1 WO 2012128381 A1 WO2012128381 A1 WO 2012128381A1 JP 2012057674 W JP2012057674 W JP 2012057674W WO 2012128381 A1 WO2012128381 A1 WO 2012128381A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
covered electric
electric wires
electric wire
conduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/057674
Other languages
French (fr)
Inventor
Toshiaki Okabe
Takahiro Hori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Publication of WO2012128381A1 publication Critical patent/WO2012128381A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D29/00—Hand-held metal-shearing or metal-cutting devices
    • B23D29/02—Hand-operated metal-shearing devices
    • B23D29/023—Hand-operated metal-shearing devices for cutting wires
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Definitions

  • the present invention relates to conduction inspection of electric wires of an indoor illuminating device for vehicles, particularly to
  • FIG. 6 A is a perspective view of a connector described in Patent Literature 1
  • Fig. 6B is a cross-sectional view taken along a line VIB-VIB of Fig. 6A.
  • a connector A includes a press-contact cover B.
  • An electric wire Wl and a contact C are connected with pressure by the press-contact cover B, and thus the electric connection of the electric wire Wl and the contact C are performed.
  • Patent Literature 1 ⁇ Problems in Patent Literature 1>
  • the press-contact cover which holds a plurality of electric wires is pressed into press-contact slots of respective contacts at the side of a housing by directly pushing the press-contact cover to the housing. It is effective when there are a small number of electric wires to be pressed and connected. But when there are a large number of electric wires, a big operation force is necessary, and there is a problem that the press-contact work cannot be done without using an exclusive
  • Patent Literature 2 solves these problems. According to Patent Literature 2, an exclusive press-contact jig and time-consuming terminal processing are unnecessary for the manufacture of a wire harness, and the cost of manufacturing the wire harness can be reduced. The quality would not drop due to damage of the terminals when the wire harness is wired, and a connector that improves its reliability is provided.
  • Fig. 7 is a perspective view of a housing including a holder receiving part according to Patent Literature 2.
  • a condition is shown where a wire holder including the holder receiving part is inserted perpendicularly and an attaching shaft of the wire holder is engaged with a holder shaft supporting part of the holder receiving part.
  • an indoor illuminating device 100 for vehicles includes a housing 400, and a first connector 430 is provided in the rear-side 400R of the housing 400. The first connector 430 is fixed to a bus bar 500 and a plurality of
  • press-contact blades 510 are arranged.
  • a second connector 600 which clamps electric wires W2 with a holder 610 and a cover 620 rotates around a rotating shaft 600S and contacts the first connector 430.
  • the plurality of press-contact blades 510 cut into and electrically connect with the corresponding electric wires W2, respectively, by making the second connector 600 to be fitted with the first connector 430.
  • FIG. 8 is an exploded perspective view which shows the indoor illuminating device for vehicles to which the present invention should be applied.
  • an indoor illuminating device 10 for vehicles is attached to a partition board (ceiling board) which partitions compartments of a vehicle, and generally includes a roughly rectangular lens 20, a lengthwise switch knob 30, a roughly rectangular housing 40 and a bus bar 50.
  • a bulb container 41 is formed at a front side 40F of the housing 40.
  • a bulb 4 IB which is a light source is assembled in the central part of the bulb container 41.
  • a switch container 42 is provided at a side part of the housing 40. The switch knob 30 is assembled to be slidable from the front side 40F.
  • a first connector 43 is provided at one side of the housing 40 by protruding from the side of the housing 40.
  • a second connector 60 (see Fig. 9A) to which electric wires (or wire harness) W are fixed is engaged with the first connector 43.
  • a metal clip 44 (see Fig. 8) used to attach the indoor illuminating device 10 for vehicles to the indoor partition board of the vehicle is fixed the other side of the housing 40 opposite to the first connector 43.
  • a switch 42R (see Fig. 9A) in conjunction with the switch knob 30 is assembled into the switch container 42 from the back side 40R.
  • a bus bar 50 (see Fig. 8) which is a circuit to connect the switch 42R or the bulb 41B electrically is assembled and fixed to the back side 40R of the housing 40.
  • a plurality of press-contact blades 51 (see Fig. 8) are individually placed in parallel in the lengthwise direction at one end of the bus bar 50. The press-contact blades 51 are attached and fixed into the first connector 43.
  • Figs. 9A to 9C show states in which the second connector inside which conductive components are not provided is attached to the indoor illuminating device for vehicles of Fig. 8, in which Fig. 9Ais a back side perspective view which shows a state before the connector is attached, Fig. 9B is a plan view which is seen from the back side which shows a state after the attachment is completed, and Fig. 9C is a cross -sectional view taken along a line IXC-IXC of Fig. 9B.
  • the second connector 60 to which the electric wires W are fixed is fitted with the first connector 43.
  • the switch 42R and the bus bar 50 are fixed to the back side 40R of the housing 40, and the press-contact blades 51 (see Fig. 8) of the bus bar 50 are fixed to the first connector 43 (see Fig. 9C).
  • press-contact blades 51 cuts into the covering resin layers of the electric wires W, and, as shown in Fig. 9C, the electric wires W and the
  • press-contact blades 51 are connected electrically. In this way, the attachment of the indoor illuminating device 10 for vehicles is completed.
  • Figs. lOA to IOC are diagrams which show attachment states of the bus bar and metal fittings of the indoor illuminating device for vehicles, in which, Fig. 10 A is a back side perspective view which shows a state before the attachment, Fig. 10B is a back side perspective view which shows a state after the attachment is completed, and Fig. IOC is an enlarged view of a part XC of Fig. 10B.
  • the metal clip 44 is engaged with and fixed to an engaging slot 44R (see Fig. lOA) which is provided on the side of the housing 40 opposite to the first connector 43 (see Fig. 9A).
  • the bus bar 50 is mounted and fixed to the whole of the back side 40R of the housing 40. After the bus bar 50 is provisionally fixed to a plurality of projections 40T (see Fig. IOC) which are formed on the back side 40R, the bus bar 50 is fixed to the back side 40R with a heat welding method for melting the front ends of the projections 40T.
  • Figs. 11A to llC are diagrams which show attachment states of the switch of the indoor illuminating device for vehicles, in which, Fig. 11 A is a back side perspective view which shows a state before the attachment of the switch, Fig. 11B is a back side right perspective view which shows a state after the attachment is completed, and Fig. 11C is a back side left
  • FIG. 1 perspective view which shows the state after the attachment is completed.
  • the switch 42R is attached and fixed from the back side 40R of the housing 40 into the switch container 42 which is provided in the housing 40.
  • Figs. 12 A and 12B are diagrams which show attachment states of the switch knob of the indoor illuminating device for vehicles, in which Fig. 12 A is a front perspective view which shows a state before the attachment of the switch knob, and Fig. 12B is a front perspective view which shows a state after the attachment is completed.
  • the switch knob 30 is mounted from the front side 40F of the housing 40 slidably in the switch container 42 to cover the inside of the switch container 42 and to be able to link with the switch 42R.
  • Figs. 13A and 13B are diagrams which show attachment states of the bulb of the indoor illuminating device for vehicles, in which Fig. 13Ais a front perspective view which shows a state before the attachment of the bulb, and Fig. 13B is a front perspective view which shows a state after the attachment is completed.
  • the bulb 4 IB is mounted from the front side 40F of the housing 40 into the roughly central part of the bulb container 41, and is electrically connected to the bus bar 50.
  • Figs. 14A and 14B are diagrams which show attachment states of the lens of the indoor illuminating device for vehicles, in which Fig. 14Ais a front perspective view which shows a state before the attachment of the lens, and Fig. 14B is a front perspective view which shows a state after the attachment is completed.
  • the lens 20 is attached from the front side 40F of the housing 40 to the housing 40 to cover the housing 40, and to make a plurality of engaging plates 20S formed at two end sides of the lens 20 to be engaged with engagement projections 40S formed at two end sides of the housing 40.
  • an opening part 21 which is provided at the lens 20 contacts peripherally with the sides of the switch knob 30.
  • Figs. 15A to 15C are diagrams which show the electric wire installing method for mstalling electric wires to a connector which is to be assembled to the indoor illuminating device for vehicles of Fig. 8 with the jig for wiring electric wires, in which Fig. 15Ais a perspective view before the connector is assembled, Fig. 15B is a perspective view which shows that the connector is provisionally fixed onto the jig, and Fig. 15C is a perspective view before electric wires are attached to the connector.
  • the second connector 60 includes a holder 61 and a cover 62 which is connected to an end of the holder 61 with a hinge.
  • the holder 61 is provided with a plurality of slots 63 for receiving the electric wires W.
  • a pedestal 71 for the second connector which carries the holder 61 and the cover 62 of the second connector 60, respectively, is provided near one edge on a center line of the jig 70.
  • the pedestal 71 for the second connector includes a pedestal 71A which is a pedestal for the holder 61, and a pedestal 71B which is a pedestal for the cover 62.
  • a positioning projection 71T for holders is provided to project upwards from the pedestal 71 A for the holder.
  • pins 72A and pins 72B are further provided to stand on the jig 70 for wiring electric wires.
  • Two positioning pins 72 A for the third connector which are used to position the third connector 80 are provided at the other edge of the jig 70 for wiring, side by side with an interval corresponding to the width of the electric wires.
  • Aplurality (four in Fig. 15C, for instance) of positioning pins 72B for electric wires which are used to position electric wires are provided near the four corners of the jig 70 for wiring, respectively.
  • Aplurality (three, in Fig. 15C, for instance) of electric wires W extend one on another in a horizontal direction from the third connector which is fixed with the positioning pins 72 A for the third connector, respectively.
  • the electric wires W can be led around the four corners of the jig 70 for wiring by being guided along the sides the positioning pins 72B for electric wires and making 90 degrees turns.
  • Figs. 16A to 16C show the electric wire installing method for installing electric wires to the second connector which is to be attached to the indoor illuminating device for vehicles, in which, Fig. 16Ais a perspective view which show a state just before the electric wires are assembled into the second connector, Fig. 16B a perspective view which shows that the temporary fixation of the electric wires is completed, and Fig. 16C is a perspective view which shows a state in which the attachment of the second connector is completed.
  • the holder 61 of the second connector 60 is brought to be right above the positioning projection 7 IT for holders (see Fig. 15A).
  • the holder 61 is moved downwards in the direction of the white arrow of Fig. 15A, and is inserted onto the positioning projection 7 IT for holders.
  • the second connector 60 is provisionally fixed onto the pedestal
  • the third connector 80 with a plurality of electric wires W is brought above the jig 70 for wiring electric wires. At this time, the third connector 80 is brought right above a pair of the positioning pins 72A and
  • the electric wires W are respectively inserted into the plurality of slots 63 of the holder 61 which is provisionally fixed to the pedestal 71A for holders.
  • the electric wires W are guided sequentially along the sides of the remaining two positioning pins 72B and 72B for electric wires, respectively, and the direction of the electric wires W is changed so that the electric wires W are brought outside from the other side of the jig 70 for wiring electric wires (see Fig. 16A).
  • the cover 62 is made to cover the holder 61 by being turned down with the hinge part so that the electric wires W are clamped with the holder 61 and the cover 62, and the electric wires W are fixed in the second connector 60.
  • the looseness of the electric wires W can be relieved by using the jig
  • Patent Literature l JP A-2006- 147273
  • the present invention is to solve the above problem, and an object of the invention is to provide a conduction inspecting method for inspecting the conduction of electric wires which are provided in a connector in which there is not a conductive component and a conduction inspecting device for that purpose.
  • a method for inspecting conduction of a covered electric wire including: connecting a conductive wire-cutting blade to an end of a power source through an electric wire; connecting a core wire of one end of the covered electric wire to another end of the power source; and causing the wire-cutting blade to contact with the core wire of the covered electric wire in a middle of cutting the other end of the covered electric wire with the wire-cutting blade to inspect the conduction of the covered electric wire.
  • a method for automatically producing a covered electric wire provided with a connector including: measuring and sending out by a roller the covered electric wire which is supplied from an electric wire supply part; disconnecting the covered electric wire with a
  • a conduction inspecting and electric wire cutting device including: a movable part; and a fixed part which is arranged below the movable part, wherein the movable part includes a plurality of conductive wire-cutting blades which are directed toward the fixed part and staggered back and forth in a lengthwise direction of a plurahty of covered electric wires, and conductive metals which are respectively connected to the plurality of wire-cutting blades and extend to a side surface of the movable part, the fixed part includes a driving device that drives the plurality of wire-cutting blades, a plurality of blade -insertion holes formed on a side of the movable part to insert the plurality of wire-cutting blades therein, respectively, and a plurahty of wire-insertion holes formed in a side surface of the fixed part to insert the plurahty of covered electric wires, respectively and extend to positions beyond corresponding positions where the plurahty of wire-cutting blades drop, and the driving
  • a method for automatically producing a covered electric wire provided with a connector including- ' disconnecting an end of a wire harness in which the plurahty of covered electric wires are arranged in parallel to each other; attaching a wire holder in a vicinity of the end of the wire harness; and inserting the plurahty of covered electric wires at the end of the wire harness in the plurahty of wire -insertion holes of the conduction inspecting and electric wire cutting device as defined in (6) to perform inspecting the conduction, and then, disconnecting the plurality of covered electric wires at the end of the wire harness with the plurality of
  • the conduction inspection and the manufacture of the electric wires with the wire holder are easily performed by cutting the other ends of the covered electric wires.
  • the conduction inspection of the covered electric wire which is to be provided in the connector in which there is not a conductive component can be easily performed by the conduction inspecting and electric wire cutting device, and when the wire-cutting blade contacts with the core wire of the covered electric wire, it is possible to have enough time to carefully confirm the conduction since the drop of the wire-cutting blade is stopped.
  • the covered electric wires which are attached to the connector can be automatically manufactured.
  • Figs. 1A and IB are diagrams which schematically describe a conduction inspecting and electric wire cutting device according to an embodiment of the present invention, in which Fig. lAis a perspective view, and Fig. IB is a diagram of a movable part of the conduction inspecting and electric wire cutting device of Fig. 1 A viewed from below.
  • Fig. 2 is a diagram of an overall conduction inspecting system which inspects the conduction of the covered electric wires using the conduction inspecting and electric wire cutting device of Fig. 1.
  • Fig. 3 is schematic diagrams which show conduction inspecting procedures of the conduction inspecting system of Fig. 2, in which (l) to (5) show the order of the inspecting procedures.
  • Fig. 4 is sectional views which describe actions of a covered wire-cutting blade of the conduction inspecting and electric wire cutting device according to the embodiment of the present invention, which are performed in the order of (l) to (3).
  • Fig. 5 is a flow chart of actions of the conduction inspecting and electric wire cutting device according to the embodiment of the present invention.
  • Figs. 6A and 6B show a conventional connector, in which Fig. 6Ais a perspective view, and Fig. 6B is a cross -sectional view taken along a line VIB VIB of Fig. 6A.
  • Fig. 7 is a back side perspective view of an indoor illuminating device for vehicles to which the present invention is applied.
  • Fig. 8 is an exploded perspective view which shows the indoor illuminating device for vehicles to which the present invention is applied.
  • Figs. 9 A, 9B and 9C show states in which a second connector inside which conductive components are not provided is attached to the indoor illuminating device for vehicles of Fig. 8, in which Fig. 9 A is a back side perspective view which shows a state before the second connector is attached, Fig. 9B is a plan view which is seen from the back side which shows a state after the attachment is completed, and Fig. 9C is a
  • Figs. 10A, 10B and IOC are diagrams which show attachment states of a bus bar and metal fittings of the indoor illuminating device for vehicles, in which, Fig. lOAis a back side perspective view which shows a state before the attachment of the bus bar and the metal fittings, Fig. 10B is a back side perspective view which shows a state after the attachment is completed, and Fig. IOC is an enlarged view of a part XC of Fig. 10B.
  • Figs. 11 A, 11B and 11C are diagrams which show attachment states of a switch of the indoor illuminating device for vehicles, in which, Fig. 11A is a back side perspective view which shows a state before the attachment, Fig. 11B is a back side right perspective view which shows a state after the attachment is completed, and Fig. 11C is a back side left perspective view which shows the state after the attachment is completed.
  • Figs. 12A and 12B are diagrams which show attachment states of a switch knob of the indoor illuminating device for vehicles, in which Fig. 12A is a front perspective view which shows a state before the attachment of the switch knob, and Fig. 12B is a front perspective view which shows a state after the attachment is completed.
  • Figs. 13A and 13B are diagrams which show attachment states of a bulb of the indoor illuminating device for vehicles, in which Fig. 13Ais a front perspective view which shows a state before the attachment of the bulb, and Fig. 13B is a front perspective view which shows a state after the attachment is completed.
  • Figs. 14A and 14B are diagrams which show attachment states of a lens of the indoor illuminating device for vehicles, in which Fig. 14Ais a front perspective view which shows a state before the attachment of the lens, and Fig. 14B is a front perspective view which shows a state after the attachment is completed.
  • Figs. 15 A, 15B and 15C are diagrams which show an electric wire installing method for mstalling electric wires to a connector which is to be assembled to the indoor illuminating device for vehicles of Fig. 8 with a jig for wiring electric wires, in which Fig. 15Ais a perspective view before a connector is assembled, Fig. 15B is a perspective view which shows that the connector is provisionally fixed onto the jig, and Fig. 15C is a perspective view before electric wires are attached to the connector.
  • Figs. 16A, 16B and 16C shows the electric wire installing method for installing electric wires to a second connector which is to be attached to the indoor illuminating device for vehicles, in which, Fig.
  • FIG. 16A is a perspective view which show a state just before the electric wires are assembled into the second connector
  • Fig. 16B a perspective view which shows that the temporary fixation of the electric wires is completed
  • Fig. 16C is a perspective view which shows a state in which the attachment of the second connector is completed.
  • Figs. 17A and 17B are diagrams which show the attachment of the second connector to the indoor illuminating device for vehicles, in which, Fig. 17Ais a back side perspective view which shows a state before attachment, and Fig. 17B is a back side perspective view which shows a state after the attachment is completed. Description of Embodiments
  • Figs. 1A and IB are diagrams which schematically describe a conduction inspecting and electric wire cutting device according to an embodiment of the present invention, in which Fig. lAis a perspective view, and Fig. IB is a diagram of a movable part of the conduction inspecting and electric wire cutting device of Fig. 1A viewed from below.
  • a conduction inspecting and electric wire cutting device 1 according to the embodiment of the present invention is divided into a movable part 2 and a fixed part 3. The movable part 2 and the fixed part 3 are described below.
  • the movable part 2 can be moved up and down right above the fixed part 3 by a driving device not shown in the diagram to control drive (moving up and down) action of a wire-cutting blade, and includes a plurality of wire-cutting blades 2M (Ml, M2 and M3) which are directed downwards to the fixed part 3.
  • a driving device not shown in the diagram to control drive (moving up and down) action of a wire-cutting blade, and includes a plurality of wire-cutting blades 2M (Ml, M2 and M3) which are directed downwards to the fixed part 3.
  • Fig. 1A three wire-cutting blades Ml to M3 are disposed to be in parallel with each other and staggered back and forth as shown in Fig. IB in the lengthwise direction of the electric wires.
  • Each of the wire-cutting blades Ml to M3 is made of a conductive material.
  • Conductive metals 2D (dotted line portions of Fig. l) which are connected to these wire-cutting blades Ml to M3 extend to the end surface of the movable part 2 at the side of a power source, respectively.
  • the conductive metals 2D are connected to electric wires 6 (see Fig. 2) at the end surface at the side of the power source, respectively, and the other ends of the electric wires 6 are connected to a power source 4 (see Fig. 2), respectively.
  • meters (ammeter) 5 may be provided in the middle of the electric wires 6 as shown in Fig. 2, respectively, and also may be provided in the movable part 2.
  • Through holes 2L through which guide bars 3G of the fixed part 3 penetrate are formed in the four corners of the movable part 2.
  • the guide bars 3G which make the movable part 2 move up and down are provided to stand on the four corners of the fixed part 3, so that the through holes 2L (see Fig. 2) of the movable part 2 can penetrate through the guide bars 3G, respectively.
  • blade-insertion holes 3M in which the plurality of wire -cutting blades 2M of the movable part 2 are inserted are formed at positions corresponding to the wire-cutting blades 2M.
  • wire insertion holes 3L in which the front ends of covered electric wires W which are inspection objects are inserted are formed at the side of the fixed part 3, and the bottoms of the wire -insertion holes 3L extend to positions beyond the positions where the wire-cutting blades 2M of the movable part 2 drop. Therefore, the covered electric wires W which are inserted until the bottoms of the wire -insertion holes 3L, can be disconnected by the wire-cutting blades 2M that drop.
  • the above wire -insertion holes 3L may have the above depth, but it is also possible that the above wire -insertion holes 3L penetrate through the fixed part 3.
  • the fixed part 3 is divided into two parts (upper and lower parts) on the plane which the center line of the
  • wire -insertion holes 3L passes, and the two parts are connected through a hinge.
  • the upper fixed part can be opened and closed relative to the lower fixed part by an opening and closing device.
  • the manufacturing process is automatically laid on the wire -insertion holes of the lower fixed part which are open, the upper fixed part is made to cover the lower fixed part by the opening and closing device.
  • the conduction inspection is made by the conduction inspecting and electric wire cutting device, the electric wires are disconnected.
  • the covered electric wires which are attached to the connector can be automatically manufactured. This will be described below.
  • Fig. 2 is a diagram of an overall conduction inspecting system which inspects the conduction of the covered electric wires W using the conduction inspecting and electric wire cutting device 1 of Fig. 1A.
  • the wire-cutting blades Ml to M3 (see Figs. lA and IB) of the movable part 2 of the conduction inspecting and electric wire cutting device 1 and one end of the power source 4 are connected with the electric wires 6 through the meters (ammeter) 5, respectively.
  • the covered electric wires Wl, W2 and W3 which are inspection objects are connected to the other end of the power source 4 through the third connector 80 (referring to Fig. 16C), respectively.
  • the back ends WS of the covered electric wires W are inserted into the wire-insertion holes 3L (see Fig. lA) of the fixed part 3 of the conduction inspecting and electric wire cutting device 1, as each of the covered electric wires passes through the second connector 60 (referring to Fig. 16C) formed by the jig 70 for wiring electric wires as described in Figs. 15A to 15C and Figs. 16A to 16C.
  • Fig. 2 shows a state right before the back ends of the covered electric wires W are inserted into the wire-insertion holes 3L of the fixed part 3 of the conduction inspecting and electric wire cutting device 1.
  • Fig. 3 is schematic diagrams which show the conduction inspecting procedures of the conduction inspecting system of Fig. 2, and in particular, (l) in Fig. 3 shows a schematic perspective view of the conduction inspecting system of Fig. 2, and (2) to (5) in Fig. 3 show procedures that follow (l) in Fig. 3, in which the meter circuits shown in (l) in Fig. 3 are omitted.
  • Fig. 4 is sectional views which describe actions of the covered wire-cutting blade to cut the covered electric wire inside the conduction inspecting and electric wire cutting device, in which (A)(l) is a sectional view before the cutting (viewed in the direction of IVAI-IVAI arrows of (2) in Fig. 3), (A)(2) is a sectional view in the middle of the cutting (viewed in the direction of IVAII-IVAII arrows of (3) in Fig. 3), and (A)(3) is a sectional view after the cutting is completed (viewed in the direction of IVAIII-IVAIII arrows of (4) in Fig. 3).
  • Fig. 5 is a flow chart of the above procedures.
  • the wire-cutting blade Ml is before the plane of the paper, and the wire-cutting blade M3 is adversely behind the plane of the paper.
  • the actions of the wire-cutting blade M2 are described, but the actions of the wire-cutting blade Ml and the wire-cutting blade M3 are performed in the same way as the actions of the wire-cutting blade M2.
  • step S 1 of Fig. 5 the wire-cutting blade M2 is set on the covered electric wire W2 and waits.
  • the wire-cutting blade M2 drops downwards, cuts the insulative coating of the covered electric wire W2 and further drops until the wire-cutting blade B2 contacts with a core wire C.
  • the dropping action is stopped (or
  • FIG. 4 is an enlarged view around the wire-cutting blade M2 of (A)(2) in Fig. 4. It is found from (B) of Fig. 4 that the wire-cutting blade M2 cuts into half of the core wire C of the covered electric wire W2. When the wire-cutting blade M2 cuts into the core wire C in this way, if there is not a non -conductive part (or disconnection) somewhere in the core wire C of the covered electric wire W2, because the conduction inspecting circuit of the conduction inspecting system of Fig. 2 forms an electrically closed circuit, a pointer of the meter (ammeter) 5 would oscillate.
  • a conduction inspection is performed.
  • the conduction inspection is passed when it is confirmed that each of the pointers of the meters 5 oscillates.
  • the conduction inspection is passed if the light emitting diodes emit light.
  • the conduction inspecting circuit of the conduction inspecting system of Fig. 2 does not form an electrically closed circuit. Therefore, the drive circuit makes the wire-cutting blade M2 drop to the bottom without stopping the dropping action of the wire-cutting blade M2, and the back end of the covered electric wire W2 is disconnected.
  • a terminal process is performed by bundling up the back ends of the covered electric wires Wl', W2' and W3' (Fig. 17A) and repeating wmding with insulating tapes to the covered electric wires Wl, W2 and W3 derived from the second connector 60 at the other side.
  • the back ends of the covered electric wires Wl', W2' and W3 ' are bundled up, because the lengths are different, there is an effect that short-circuit among each other needs not to be concerned.
  • (l) covered electric wires which are supplied from an electric wire supply part are sent out by a roller after the length of the covered electric wires is measured by the roller.
  • the covered electric wires are disconnected with a predetermined length.
  • Terminals are attached to the ends of the disconnected covered electric wires and received in a connector housing.
  • the conduction of the covered electric wires is inspected using the conduction inspecting and electric wire cutting device according to the embodiment of the present invention.
  • the conduction inspection can be omitted after the product is completed because the conduction inspection is accomplished when the wire harness is produced.
  • JP-A-2008-39748 a manufacturing method of the wire harness, which is disclosed in JP-A-2008-39748, can be referred to.
  • the manufacturing device of wire harnesses includes an electric wire changing device, an automatic cutting device, a control unit, an automatic crimping device, a display terminal and a conduction inspecting device.
  • the control unit performs the overall controls, and the display terminal displays the contents of each step.
  • a reel on which desired electric wires are wound is taken out from a plurality of electric wire reels by the electric wire changing device, replacement is made, and the selected electric wires are supplied to the automatic cutting device.
  • Conduction inspection is performed by the conduction inspecting device using the two terminals of the crimped electric wire.
  • the operation time can be shortened.
  • the conduction inspecting and electric wire cutting device 1 according to the embodiment of the present invention could be used as the automatic cutting device of above (2).
  • the conduction inspection of (4) is performed using the two terminals of the electric wire which are crimped by the crimping device of (3), if the conduction inspection using the crimped terminals does not pass, the crimped terminals become wasted. According to the embodiment of the present invention, however, because the conduction inspection can be performed when the terminals are not crimped, it can be avoided that the terminal becomes wasted beforehand.
  • the conduction inspection of the covered electric wire which is provided in the connector in which there is not a conductive component is possible by making the wire-cutting blade of the conduction inspecting and electric wire cutting device cut into the core wire of the covered electric wire.
  • the plurality of wire-cutting blades are placed to be staggered with each other in the length direction of the covered electric wires. Even if the back ends of the covered electric wires are bundled up and wound with insulating tapes, short circuit among each other need not to be concerned because the lengths of the back ends of the covered electric wires are different from each other.
  • the conduction inspection and the manufacture of the electric wires with the wire holder are easily performed by cutting the other ends of the covered electric wires.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

A method and a device for inspecting conduction of a covered electric wire (W) are provided. The method includes: connecting a conductive wire -cutting blade (Ml, M2, M3) to an end of a power source (4) through an electric wire (6); connecting a core wire of one end of the covered electric wire to another end of the power source; and causing the wire-cutting blade to contact with the core wire of the covered electric wire in a middle of cutting the other end of the covered electric wire with the wire-cutting blade to inspect the conduction of the covered electric wire.

Description

DESCRIPTION
METHOD AND DEVICE FOR INSPECTING CONDUCTION OF COVERED ELECTRIC WIRE
Technical Field
The present invention relates to conduction inspection of electric wires of an indoor illuminating device for vehicles, particularly to
conduction inspection of covered electric wires that forms a wire harness which is provided in a connector without a conductive component and a conduction inspecting device that performs the conduction inspection.
Background Art
<An indoor illuminating device for vehicles described in Patent Literature 1 >
It is already known to perform an electric connection of an electric wire contained in a connector which does not have a conductive component inside by using a press-contact member (referring to Patent Literature l). Fig. 6 A is a perspective view of a connector described in Patent Literature 1, and Fig. 6B is a cross-sectional view taken along a line VIB-VIB of Fig. 6A.
In Figs. 6A and 6B, a connector A includes a press-contact cover B. An electric wire Wl and a contact C are connected with pressure by the press-contact cover B, and thus the electric connection of the electric wire Wl and the contact C are performed.
<Problems in Patent Literature 1> In the connector described in Patent Literature 1 in which electric wires are pressed and connected, the press-contact cover which holds a plurality of electric wires is pressed into press-contact slots of respective contacts at the side of a housing by directly pushing the press-contact cover to the housing. It is effective when there are a small number of electric wires to be pressed and connected. But when there are a large number of electric wires, a big operation force is necessary, and there is a problem that the press-contact work cannot be done without using an exclusive
press-contact jig. Therefore, it becomes difficult to manufacture wire harnesses in spots where an exclusive press-contact jig is not equipped.
Patent Literature 2 solves these problems. According to Patent Literature 2, an exclusive press-contact jig and time-consuming terminal processing are unnecessary for the manufacture of a wire harness, and the cost of manufacturing the wire harness can be reduced. The quality would not drop due to damage of the terminals when the wire harness is wired, and a connector that improves its reliability is provided.
Fig. 7 is a perspective view of a housing including a holder receiving part according to Patent Literature 2. In Fig. 7, a condition is shown where a wire holder including the holder receiving part is inserted perpendicularly and an attaching shaft of the wire holder is engaged with a holder shaft supporting part of the holder receiving part. In Fig. 7, an indoor illuminating device 100 for vehicles includes a housing 400, and a first connector 430 is provided in the rear-side 400R of the housing 400. The first connector 430 is fixed to a bus bar 500 and a plurality of
press-contact blades 510 are arranged. On the other hand, a second connector 600 which clamps electric wires W2 with a holder 610 and a cover 620 rotates around a rotating shaft 600S and contacts the first connector 430. The plurality of press-contact blades 510 cut into and electrically connect with the corresponding electric wires W2, respectively, by making the second connector 600 to be fitted with the first connector 430.
<Problem in Patent Literature 2 >
According to the indoor illuminating device 100 for vehicles described in Patent Literature 2, because the second connector 600 is made to contact with the first connector 430 by rotating around the rotating shaft 600S, an exclusive press-contact jig and time-consuming terminal processing are unnecessary for the manufacture of the wire harness, and the cost of manufacturing the wire harness can be reduced. Further, the quality would not drop due to damage of the terminals when the wire harness is wired, and the reliability can be improved.
However, it is difficult to precisely decide attaching positions of the holder and the cover to the electric wires.
<Further improvement
Thus, to solve the above problem in Patent Literature 2, a jig for wiring electric wires to be described later is used, and then, the attaching positions of the cover and the holder to the electric wires can be precisely and easily decided.
<Indoor illuminating device for vehicles to which the present invention should be applied>
Before describing the jig for wiring electric wires, first, the indoor illuminating device for vehicles to which a connector with electric wires that is wired using the jig for wiring electric wires is attached is briefly described with reference to the drawings. Fig. 8 is an exploded perspective view which shows the indoor illuminating device for vehicles to which the present invention should be applied. In Fig. 8, an indoor illuminating device 10 for vehicles is attached to a partition board (ceiling board) which partitions compartments of a vehicle, and generally includes a roughly rectangular lens 20, a lengthwise switch knob 30, a roughly rectangular housing 40 and a bus bar 50.
A bulb container 41 is formed at a front side 40F of the housing 40. A bulb 4 IB which is a light source is assembled in the central part of the bulb container 41. A switch container 42 is provided at a side part of the housing 40. The switch knob 30 is assembled to be slidable from the front side 40F.
A first connector 43 is provided at one side of the housing 40 by protruding from the side of the housing 40. A second connector 60 (see Fig. 9A) to which electric wires (or wire harness) W are fixed is engaged with the first connector 43. A metal clip 44 (see Fig. 8) used to attach the indoor illuminating device 10 for vehicles to the indoor partition board of the vehicle is fixed the other side of the housing 40 opposite to the first connector 43. A switch 42R (see Fig. 9A) in conjunction with the switch knob 30 is assembled into the switch container 42 from the back side 40R. A bus bar 50 (see Fig. 8) which is a circuit to connect the switch 42R or the bulb 41B electrically is assembled and fixed to the back side 40R of the housing 40. A plurality of press-contact blades 51 (see Fig. 8) are individually placed in parallel in the lengthwise direction at one end of the bus bar 50. The press-contact blades 51 are attached and fixed into the first connector 43.
Next, electric connection with the press-contact blades 51 is described using Figs. 9A to 9C.
Figs. 9A to 9C show states in which the second connector inside which conductive components are not provided is attached to the indoor illuminating device for vehicles of Fig. 8, in which Fig. 9Ais a back side perspective view which shows a state before the connector is attached, Fig. 9B is a plan view which is seen from the back side which shows a state after the attachment is completed, and Fig. 9C is a cross -sectional view taken along a line IXC-IXC of Fig. 9B. In Figs. 9A to 9C, the second connector 60 to which the electric wires W are fixed is fitted with the first connector 43. The switch 42R and the bus bar 50 are fixed to the back side 40R of the housing 40, and the press-contact blades 51 (see Fig. 8) of the bus bar 50 are fixed to the first connector 43 (see Fig. 9C).
Therefore, even if conductive components are not provided inside the second connector 60, when the second connector 60 is inserted into the first connector 43 and is engaged with the first connector 43, the
press-contact blades 51 cuts into the covering resin layers of the electric wires W, and, as shown in Fig. 9C, the electric wires W and the
press-contact blades 51 are connected electrically. In this way, the attachment of the indoor illuminating device 10 for vehicles is completed.
<Assembling steps of respective components of the indoor
illuminating device for vehicles>
(l) <The attachment of the metal clip 44 and the bus bar 50: Figs. lOAto 10C>
Figs. lOA to IOC are diagrams which show attachment states of the bus bar and metal fittings of the indoor illuminating device for vehicles, in which, Fig. 10 A is a back side perspective view which shows a state before the attachment, Fig. 10B is a back side perspective view which shows a state after the attachment is completed, and Fig. IOC is an enlarged view of a part XC of Fig. 10B.
In Figs. 10A to IOC, the metal clip 44 is engaged with and fixed to an engaging slot 44R (see Fig. lOA) which is provided on the side of the housing 40 opposite to the first connector 43 (see Fig. 9A). The bus bar 50 is mounted and fixed to the whole of the back side 40R of the housing 40. After the bus bar 50 is provisionally fixed to a plurality of projections 40T (see Fig. IOC) which are formed on the back side 40R, the bus bar 50 is fixed to the back side 40R with a heat welding method for melting the front ends of the projections 40T.
(2) <The attachment of the switch 42R: Figs. llAto 11C>
Figs. 11A to llC are diagrams which show attachment states of the switch of the indoor illuminating device for vehicles, in which, Fig. 11 A is a back side perspective view which shows a state before the attachment of the switch, Fig. 11B is a back side right perspective view which shows a state after the attachment is completed, and Fig. 11C is a back side left
perspective view which shows the state after the attachment is completed. The switch 42R is attached and fixed from the back side 40R of the housing 40 into the switch container 42 which is provided in the housing 40.
(3) <The attachment of the switch knob 30: Figs. 12 A and 12B> Figs. 12A and 12B are diagrams which show attachment states of the switch knob of the indoor illuminating device for vehicles, in which Fig. 12 A is a front perspective view which shows a state before the attachment of the switch knob, and Fig. 12B is a front perspective view which shows a state after the attachment is completed. The switch knob 30 is mounted from the front side 40F of the housing 40 slidably in the switch container 42 to cover the inside of the switch container 42 and to be able to link with the switch 42R.
(4) <The attachment of the bulb 41B: Figs. 13A and 13B>
Figs. 13A and 13B are diagrams which show attachment states of the bulb of the indoor illuminating device for vehicles, in which Fig. 13Ais a front perspective view which shows a state before the attachment of the bulb, and Fig. 13B is a front perspective view which shows a state after the attachment is completed. The bulb 4 IB is mounted from the front side 40F of the housing 40 into the roughly central part of the bulb container 41, and is electrically connected to the bus bar 50.
(5) <The attachment of the lens 20: Figs. 14A and 14B>
Figs. 14A and 14B are diagrams which show attachment states of the lens of the indoor illuminating device for vehicles, in which Fig. 14Ais a front perspective view which shows a state before the attachment of the lens, and Fig. 14B is a front perspective view which shows a state after the attachment is completed. The lens 20 is attached from the front side 40F of the housing 40 to the housing 40 to cover the housing 40, and to make a plurality of engaging plates 20S formed at two end sides of the lens 20 to be engaged with engagement projections 40S formed at two end sides of the housing 40. At this time, an opening part 21 which is provided at the lens 20 contacts peripherally with the sides of the switch knob 30.
Description is made above of the whole structure of the indoor illuminating device for vehicles to which the present invention should be applied and the main components which form the structure.
Next, the jig for wiring which is used to install electric wires to the second connector 60, which, when the electric wires are attached, is fitted to the first connector 43 as described in Figs. 9A to 9C, and an electric wire installing method with the jig for wiring are described using Figs. 15A to 15C.
<The jig for wiring electric wires>
<A pedestal for holders and a pedestal for covers in the jig for wiring>
Figs. 15A to 15C are diagrams which show the electric wire installing method for mstalling electric wires to a connector which is to be assembled to the indoor illuminating device for vehicles of Fig. 8 with the jig for wiring electric wires, in which Fig. 15Ais a perspective view before the connector is assembled, Fig. 15B is a perspective view which shows that the connector is provisionally fixed onto the jig, and Fig. 15C is a perspective view before electric wires are attached to the connector. In Fig. 15 A, the second connector 60 includes a holder 61 and a cover 62 which is connected to an end of the holder 61 with a hinge. The holder 61 is provided with a plurality of slots 63 for receiving the electric wires W. In the jig 70 for wiring electric wires, a pedestal 71 for the second connector which carries the holder 61 and the cover 62 of the second connector 60, respectively, is provided near one edge on a center line of the jig 70. The pedestal 71 for the second connector includes a pedestal 71A which is a pedestal for the holder 61, and a pedestal 71B which is a pedestal for the cover 62. A positioning projection 71T for holders is provided to project upwards from the pedestal 71 A for the holder.
<Positioning pins for connectors and positioning pins for electric wires in the jig for wiring>
Further, two kinds (pins 72A and pins 72B) of positioning pins 72 are further provided to stand on the jig 70 for wiring electric wires.
Two positioning pins 72 A for the third connector which are used to position the third connector 80 are provided at the other edge of the jig 70 for wiring, side by side with an interval corresponding to the width of the electric wires.
Aplurality (four in Fig. 15C, for instance) of positioning pins 72B for electric wires which are used to position electric wires are provided near the four corners of the jig 70 for wiring, respectively.
Aplurality (three, in Fig. 15C, for instance) of electric wires W extend one on another in a horizontal direction from the third connector which is fixed with the positioning pins 72 A for the third connector, respectively. The electric wires W can be led around the four corners of the jig 70 for wiring by being guided along the sides the positioning pins 72B for electric wires and making 90 degrees turns.
<A method of using the jig for wiring electric wires>
Next, the method of using the jig for wiring electric wires is described using Figs. 15A to 15C and Figs. 16A to 16C. Figs. 16A to 16C show the electric wire installing method for installing electric wires to the second connector which is to be attached to the indoor illuminating device for vehicles, in which, Fig. 16Ais a perspective view which show a state just before the electric wires are assembled into the second connector, Fig. 16B a perspective view which shows that the temporary fixation of the electric wires is completed, and Fig. 16C is a perspective view which shows a state in which the attachment of the second connector is completed.
(1) In the first step of the assembling method, the holder 61 of the second connector 60 is brought to be right above the positioning projection 7 IT for holders (see Fig. 15A).
(2) The holder 61 is moved downwards in the direction of the white arrow of Fig. 15A, and is inserted onto the positioning projection 7 IT for holders. The second connector 60 is provisionally fixed onto the pedestal
71 (see Fig. 15B).
(3) The third connector 80 with a plurality of electric wires W is brought above the jig 70 for wiring electric wires. At this time, the third connector 80 is brought right above a pair of the positioning pins 72A and
72 A for the third connector, and three electric wires W are brought to be in a direction to straightly cross over the jig 70 for wiring electric wires (see Fig. 15C).
(4) The whole third connector 80 with the electric wires W is just moved downwards in the direction of the white arrow of Fig. 15C. First, the third connector 80 is made to abut with the outside of the positioning pins 72A and 72 A for the third connector (the side opposite to the jig 70 for wiring electric wires) and the root parts of the electric wires W that are attached to the third connector 80 are sandwiched between the positioning pins 72 A and 72Afor the third connector (see Fig. 16A).
(5) Next, the parts of the three electric wires W that extend from the third connector 80 are guided sequentially along the sides of two positioning pins 72B and 72B for electric wires which are at the side of the positioning pin 72 A for the third connector, respectively, and the direction of the electric wires W is changed so that the electric wires W is brought near the pedestal 7lAfor holders.
Then, the electric wires W are respectively inserted into the plurality of slots 63 of the holder 61 which is provisionally fixed to the pedestal 71A for holders.
Further, the electric wires W are guided sequentially along the sides of the remaining two positioning pins 72B and 72B for electric wires, respectively, and the direction of the electric wires W is changed so that the electric wires W are brought outside from the other side of the jig 70 for wiring electric wires (see Fig. 16A).
(6) When the ends of the parts of the three electric wires W that extend from the third connector 80 are strongly pulled to the direction of the arrow F (opposite direction of the third connector 80) of Fig. 16B, the looseness of the electric wires W is relieved by the positioning pins 72B for electric wires, and the electric wires W which are laid loosely in the plurality of slots 63 of the holder 61 are well fixed in the respected slots 63 (see Fig. 16B).
(7) In this state, the cover 62 is made to cover the holder 61 by being turned down with the hinge part so that the electric wires W are clamped with the holder 61 and the cover 62, and the electric wires W are fixed in the second connector 60.
With the above-mentioned steps, the attachment of the electric wires W to the second connector 60 is completed (see Fig. 16C).
The looseness of the electric wires W can be relieved by using the jig
70 for wiring electric wires and the attachment to the holder can be performed precisely.
When the second connector 60 (see Fig. 16C) provided in this way is inserted into the first connector 43 of the housing 40 of the indoor illuminating device 10 of Fig. 9A, with the engagement of the first connector
43 and the second connector 60 (see Fig. 9B), because the press-contact blade 51 (see Fig. 8) cuts into the covered resin layers of the electric wires W and press-contacts with the electric wires W (see Fig. 9C), the electric wires
W and the bus bar 50 are electrically connected.
With the above-mentioned steps, the assembly of the connector without a conductive component to the indoor illuminating device 10 for vehicles is completed.
Citation List
Patent Literature
Patent Literature l: JP A-2006- 147273
Patent Literature 2- JP A-2011- 113802
Summary of Invention
Technical Problem Since there is not a conductive component (female terminal in conventional products) inside the connector (the second connector) to which the electric wires are attached using the above jig 70 for wiring electric wires, the number of components can be reduced.
When an electric wire conduction inspection is made to inspect whether the core wire is disconnected in the middle of a long covered electric wire, in a conventional electric wire conduction inspecting method, an electric current that flows between terminals (conductive components) in the connectors that hold both ends of the electric wires W is inspected.
Because the conductive components do not exist in the second connector 60, however, the conduction inspection of the electric wires which are attached to the connector with the jig 70 for wiring electric wires cannot flow electric current between the connectors 60 and 80 that hold both ends of the electric wires W. That is, there is a problem that the conventional electric wire conduction inspecting method is not usable.
The present invention is to solve the above problem, and an object of the invention is to provide a conduction inspecting method for inspecting the conduction of electric wires which are provided in a connector in which there is not a conductive component and a conduction inspecting device for that purpose.
Solution to Problem
To achieve the previously described object, aspects of the present invention is shown as the following (l) to (7).
(l) A method for inspecting conduction of a covered electric wire, the method including: connecting a conductive wire-cutting blade to an end of a power source through an electric wire; connecting a core wire of one end of the covered electric wire to another end of the power source; and causing the wire-cutting blade to contact with the core wire of the covered electric wire in a middle of cutting the other end of the covered electric wire with the wire-cutting blade to inspect the conduction of the covered electric wire.
(2) The method according to (l), including: dropping the wire-cutting blade downward with respect to the covered electric wire, wherein a dropping action of the wire-cutting blade is interrupted when it is detected that the wire-cutting blade contacts with the core wire of the covered electric wire.
(3) A method for automatically producing a covered electric wire provided with a connector, the method including: measuring and sending out by a roller the covered electric wire which is supplied from an electric wire supply part; disconnecting the covered electric wire with a
predetermined length; and attaching a terminal to one end of the
disconnected covered electric wire and receiving the terminal in a connector housing, wherein the method for inspecting the conduction as defined in (l) or (2) is performed when the other end of the covered electric wire which is connected to the received terminal is to be disconnected.
(4) The method according to (l), including: attaching a wire holder in a middle of a wire harness in which a plurality of covered electric wires are arranged in parallel to each other, wherein the other end of the covered electric wire is disconnected with the wire-cutting blade after inspecting the conduction. (5) A wire harness produced by the method as defined in any one of (l) to (4).
(6) A conduction inspecting and electric wire cutting device, including: a movable part; and a fixed part which is arranged below the movable part, wherein the movable part includes a plurality of conductive wire-cutting blades which are directed toward the fixed part and staggered back and forth in a lengthwise direction of a plurahty of covered electric wires, and conductive metals which are respectively connected to the plurality of wire-cutting blades and extend to a side surface of the movable part, the fixed part includes a driving device that drives the plurality of wire-cutting blades, a plurality of blade -insertion holes formed on a side of the movable part to insert the plurality of wire-cutting blades therein, respectively, and a plurahty of wire-insertion holes formed in a side surface of the fixed part to insert the plurahty of covered electric wires, respectively and extend to positions beyond corresponding positions where the plurahty of wire-cutting blades drop, and the driving device interrupts a dropping action of the plurahty of wire-cutting blades when the plurahty of wire-cutting blades contact with corresponding core wires of the plurahty of covered electric wires.
(7) A method for automatically producing a covered electric wire provided with a connector, the method including-' disconnecting an end of a wire harness in which the plurahty of covered electric wires are arranged in parallel to each other; attaching a wire holder in a vicinity of the end of the wire harness; and inserting the plurahty of covered electric wires at the end of the wire harness in the plurahty of wire -insertion holes of the conduction inspecting and electric wire cutting device as defined in (6) to perform inspecting the conduction, and then, disconnecting the plurality of covered electric wires at the end of the wire harness with the plurality of
wire-cutting blades.
Advantageous Effects of Invention
According to (l), it is possible to perform the conduction inspection of the covered electric wire which is to be provided in the connector in which there is not a conductive component by making the wire-cutting blade contact with the core wire of the electric wire.
According to (2), when it is detected that the wire -cutting blade contacts with the core wire of the covered electric wire, it is possible to have enough time to carefully confirm the conduction since the driving of the wire-cutting blade is stopped.
According to (3), because the conduction inspection is accomplished when the wire harness is produced, this kind of inspection can be omitted after the product is completed.
According to (4), the conduction inspection and the manufacture of the electric wires with the wire holder are easily performed by cutting the other ends of the covered electric wires.
According to (5), because the conduction inspection is accomplished when the assembly of the wire harness is completed, this kind of inspection can be omitted after the product is completed.
According to (6), the conduction inspection of the covered electric wire which is to be provided in the connector in which there is not a conductive component can be easily performed by the conduction inspecting and electric wire cutting device, and when the wire-cutting blade contacts with the core wire of the covered electric wire, it is possible to have enough time to carefully confirm the conduction since the drop of the wire-cutting blade is stopped.
According to (7), the covered electric wires which are attached to the connector can be automatically manufactured.
Brief Description of Drawings
Figs. 1A and IB are diagrams which schematically describe a conduction inspecting and electric wire cutting device according to an embodiment of the present invention, in which Fig. lAis a perspective view, and Fig. IB is a diagram of a movable part of the conduction inspecting and electric wire cutting device of Fig. 1 A viewed from below.
Fig. 2 is a diagram of an overall conduction inspecting system which inspects the conduction of the covered electric wires using the conduction inspecting and electric wire cutting device of Fig. 1.
Fig. 3 is schematic diagrams which show conduction inspecting procedures of the conduction inspecting system of Fig. 2, in which (l) to (5) show the order of the inspecting procedures.
Fig. 4 is sectional views which describe actions of a covered wire-cutting blade of the conduction inspecting and electric wire cutting device according to the embodiment of the present invention, which are performed in the order of (l) to (3).
Fig. 5 is a flow chart of actions of the conduction inspecting and electric wire cutting device according to the embodiment of the present invention.
Figs. 6A and 6B show a conventional connector, in which Fig. 6Ais a perspective view, and Fig. 6B is a cross -sectional view taken along a line VIB VIB of Fig. 6A.
Fig. 7 is a back side perspective view of an indoor illuminating device for vehicles to which the present invention is applied.
Fig. 8 is an exploded perspective view which shows the indoor illuminating device for vehicles to which the present invention is applied.
Figs. 9 A, 9B and 9C show states in which a second connector inside which conductive components are not provided is attached to the indoor illuminating device for vehicles of Fig. 8, in which Fig. 9 A is a back side perspective view which shows a state before the second connector is attached, Fig. 9B is a plan view which is seen from the back side which shows a state after the attachment is completed, and Fig. 9C is a
cross-sectional view taken along a line IXC -IXC of Fig. 9B.
Figs. 10A, 10B and IOC are diagrams which show attachment states of a bus bar and metal fittings of the indoor illuminating device for vehicles, in which, Fig. lOAis a back side perspective view which shows a state before the attachment of the bus bar and the metal fittings, Fig. 10B is a back side perspective view which shows a state after the attachment is completed, and Fig. IOC is an enlarged view of a part XC of Fig. 10B.
Figs. 11 A, 11B and 11C are diagrams which show attachment states of a switch of the indoor illuminating device for vehicles, in which, Fig. 11A is a back side perspective view which shows a state before the attachment, Fig. 11B is a back side right perspective view which shows a state after the attachment is completed, and Fig. 11C is a back side left perspective view which shows the state after the attachment is completed.
Figs. 12A and 12B are diagrams which show attachment states of a switch knob of the indoor illuminating device for vehicles, in which Fig. 12A is a front perspective view which shows a state before the attachment of the switch knob, and Fig. 12B is a front perspective view which shows a state after the attachment is completed.
Figs. 13A and 13B are diagrams which show attachment states of a bulb of the indoor illuminating device for vehicles, in which Fig. 13Ais a front perspective view which shows a state before the attachment of the bulb, and Fig. 13B is a front perspective view which shows a state after the attachment is completed.
Figs. 14A and 14B are diagrams which show attachment states of a lens of the indoor illuminating device for vehicles, in which Fig. 14Ais a front perspective view which shows a state before the attachment of the lens, and Fig. 14B is a front perspective view which shows a state after the attachment is completed.
Figs. 15 A, 15B and 15C are diagrams which show an electric wire installing method for mstalling electric wires to a connector which is to be assembled to the indoor illuminating device for vehicles of Fig. 8 with a jig for wiring electric wires, in which Fig. 15Ais a perspective view before a connector is assembled, Fig. 15B is a perspective view which shows that the connector is provisionally fixed onto the jig, and Fig. 15C is a perspective view before electric wires are attached to the connector. Figs. 16A, 16B and 16C shows the electric wire installing method for installing electric wires to a second connector which is to be attached to the indoor illuminating device for vehicles, in which, Fig. 16Ais a perspective view which show a state just before the electric wires are assembled into the second connector, Fig. 16B a perspective view which shows that the temporary fixation of the electric wires is completed, and Fig. 16C is a perspective view which shows a state in which the attachment of the second connector is completed.
Figs. 17A and 17B are diagrams which show the attachment of the second connector to the indoor illuminating device for vehicles, in which, Fig. 17Ais a back side perspective view which shows a state before attachment, and Fig. 17B is a back side perspective view which shows a state after the attachment is completed. Description of Embodiments
Figs. 1A and IB are diagrams which schematically describe a conduction inspecting and electric wire cutting device according to an embodiment of the present invention, in which Fig. lAis a perspective view, and Fig. IB is a diagram of a movable part of the conduction inspecting and electric wire cutting device of Fig. 1A viewed from below. In Fig. 1A, a conduction inspecting and electric wire cutting device 1 according to the embodiment of the present invention is divided into a movable part 2 and a fixed part 3. The movable part 2 and the fixed part 3 are described below.
<The movable part 2>
The movable part 2 can be moved up and down right above the fixed part 3 by a driving device not shown in the diagram to control drive (moving up and down) action of a wire-cutting blade, and includes a plurality of wire-cutting blades 2M (Ml, M2 and M3) which are directed downwards to the fixed part 3.
In Fig. 1A, three wire-cutting blades Ml to M3 are disposed to be in parallel with each other and staggered back and forth as shown in Fig. IB in the lengthwise direction of the electric wires.
Each of the wire-cutting blades Ml to M3 is made of a conductive material. Conductive metals 2D (dotted line portions of Fig. l) which are connected to these wire-cutting blades Ml to M3 extend to the end surface of the movable part 2 at the side of a power source, respectively.
The conductive metals 2D are connected to electric wires 6 (see Fig. 2) at the end surface at the side of the power source, respectively, and the other ends of the electric wires 6 are connected to a power source 4 (see Fig. 2), respectively. In this case, meters (ammeter) 5 may be provided in the middle of the electric wires 6 as shown in Fig. 2, respectively, and also may be provided in the movable part 2.
Through holes 2L (see Fig. 2) through which guide bars 3G of the fixed part 3 penetrate are formed in the four corners of the movable part 2.
<The fixed part 3>
Returning to Fig. 1A, the guide bars 3G which make the movable part 2 move up and down are provided to stand on the four corners of the fixed part 3, so that the through holes 2L (see Fig. 2) of the movable part 2 can penetrate through the guide bars 3G, respectively.
In the fixed part 3, blade-insertion holes 3M in which the plurality of wire -cutting blades 2M of the movable part 2 are inserted are formed at positions corresponding to the wire-cutting blades 2M.
Furthermore, wire insertion holes 3L in which the front ends of covered electric wires W which are inspection objects are inserted are formed at the side of the fixed part 3, and the bottoms of the wire -insertion holes 3L extend to positions beyond the positions where the wire-cutting blades 2M of the movable part 2 drop. Therefore, the covered electric wires W which are inserted until the bottoms of the wire -insertion holes 3L, can be disconnected by the wire-cutting blades 2M that drop.
The above wire -insertion holes 3L may have the above depth, but it is also possible that the above wire -insertion holes 3L penetrate through the fixed part 3. In the latter case, the fixed part 3 is divided into two parts (upper and lower parts) on the plane which the center line of the
wire -insertion holes 3L passes, and the two parts are connected through a hinge. The upper fixed part can be opened and closed relative to the lower fixed part by an opening and closing device. After each of the electric wires of the wire harness which has been sent out from a wire harness
manufacturing process is automatically laid on the wire -insertion holes of the lower fixed part which are open, the upper fixed part is made to cover the lower fixed part by the opening and closing device. After the
conduction inspection is made by the conduction inspecting and electric wire cutting device, the electric wires are disconnected. Thus, the covered electric wires which are attached to the connector can be automatically manufactured. This will be described below.
Fig. 2 is a diagram of an overall conduction inspecting system which inspects the conduction of the covered electric wires W using the conduction inspecting and electric wire cutting device 1 of Fig. 1A. In Fig. 2, the wire-cutting blades Ml to M3 (see Figs. lA and IB) of the movable part 2 of the conduction inspecting and electric wire cutting device 1 and one end of the power source 4 are connected with the electric wires 6 through the meters (ammeter) 5, respectively. The covered electric wires Wl, W2 and W3 which are inspection objects are connected to the other end of the power source 4 through the third connector 80 (referring to Fig. 16C), respectively. The back ends WS of the covered electric wires W are inserted into the wire-insertion holes 3L (see Fig. lA) of the fixed part 3 of the conduction inspecting and electric wire cutting device 1, as each of the covered electric wires passes through the second connector 60 (referring to Fig. 16C) formed by the jig 70 for wiring electric wires as described in Figs. 15A to 15C and Figs. 16A to 16C.
Fig. 2 shows a state right before the back ends of the covered electric wires W are inserted into the wire-insertion holes 3L of the fixed part 3 of the conduction inspecting and electric wire cutting device 1.
Fig. 3 is schematic diagrams which show the conduction inspecting procedures of the conduction inspecting system of Fig. 2, and in particular, (l) in Fig. 3 shows a schematic perspective view of the conduction inspecting system of Fig. 2, and (2) to (5) in Fig. 3 show procedures that follow (l) in Fig. 3, in which the meter circuits shown in (l) in Fig. 3 are omitted.
Fig. 4 is sectional views which describe actions of the covered wire-cutting blade to cut the covered electric wire inside the conduction inspecting and electric wire cutting device, in which (A)(l) is a sectional view before the cutting (viewed in the direction of IVAI-IVAI arrows of (2) in Fig. 3), (A)(2) is a sectional view in the middle of the cutting (viewed in the direction of IVAII-IVAII arrows of (3) in Fig. 3), and (A)(3) is a sectional view after the cutting is completed (viewed in the direction of IVAIII-IVAIII arrows of (4) in Fig. 3). Fig. 5 is a flow chart of the above procedures.
<i: Before the covered electric wires are inserted >
In (l) of Fig. 3, the back ends WS (see Fig. 2) of the covered electric wires W which has just passed through the slots in the second connector 60 are moved in the direction of the white arrow, and inserted into the wire -insertion holes 3L (see Fig. lA) of the fixed part 3 of the conduction inspecting and electric wire cutting device 1.
<2 - After the covered electric wires are inserted and before the covered electric wires are cut>
In (2) of Fig. 3, the back ends WS of the covered electric wires W are inserted into the wire -insertion holes 3L of the fixed part 3 deeply. In this ease, the inside of the conduction inspecting and electric wire cutting device 1 is shown as (A)(l) in Fig. 4, the covered electric wire W2 is located right below the wire-cutting blade M2 of the movable part 2, and the wire-cutting blade M2 does not further drop. Because (A)(l) in Fig. 4 is a sectional view that vertically passes through the wire-cutting blade M2 in the plurality of wire cutting blades Ml, M2 and M3 (see Fig. IB), only the wire-cutting blade M2 is found in (A)(l) in Fig. 4. The wire-cutting blade Ml is before the plane of the paper, and the wire-cutting blade M3 is adversely behind the plane of the paper. Hereinafter, the actions of the wire-cutting blade M2 are described, but the actions of the wire-cutting blade Ml and the wire-cutting blade M3 are performed in the same way as the actions of the wire-cutting blade M2.
In a step S 1 of Fig. 5, the wire-cutting blade M2 is set on the covered electric wire W2 and waits.
<3: In the middle of the cutting of the covered electric wires>
In a step S2 of Fig. 5, the wire-cutting blade M2 drops downwards, cuts the insulative coating of the covered electric wire W2 and further drops until the wire-cutting blade B2 contacts with a core wire C. When the wire-cutting blade M2 contacts with the core wire C of the covered electric wire W2, in a step S3 of Fig. 5, the dropping action is stopped (or
interrupted).
(3) in Fig. 3 corresponds to a step S3 of Fig. 5, in which the wire-cutting blade M2 drops downwards until the upper half of the covered electric wire W2 is cut. In this case, the inside of the conduction inspecting and electric wire cutting device 1 is shown as (A)(2) of Fig. 4, and the wire-cutting blade M2 cuts the upper half of the covered electric wire W2.
In Fig. 4, (B) is an enlarged view around the wire-cutting blade M2 of (A)(2) in Fig. 4. It is found from (B) of Fig. 4 that the wire-cutting blade M2 cuts into half of the core wire C of the covered electric wire W2. When the wire-cutting blade M2 cuts into the core wire C in this way, if there is not a non -conductive part (or disconnection) somewhere in the core wire C of the covered electric wire W2, because the conduction inspecting circuit of the conduction inspecting system of Fig. 2 forms an electrically closed circuit, a pointer of the meter (ammeter) 5 would oscillate. In this case, because it is possible to confirm (conduction confirmation) the oscillation of the pointer of the meter 5, in the embodiment of the present invention, when the conduction inspecting circuit of the conduction inspecting system of Fig. 2 forms an electrically closed circuit, the dropping action of the wire-cutting blade of the drive circuit stops.
<4- Conduction inspection>
In a step S4 of Fig. 5, a conduction inspection is performed.
The conduction inspection is passed when it is confirmed that each of the pointers of the meters 5 oscillates.
When light emitting diodes are used instead of the meters 5, the conduction inspection is passed if the light emitting diodes emit light.
When contacts of self-holding circuits are used instead of the meters 5 so that light emitting diodes are made to emit light directly through the power source and the contacts, once an electric current flows through the contacts and the light emitting diode emits light, even if the electric current disappears afterwards (in other words, even if the dropping action of the wire-cutting blades resume, the covered electric wires W are disconnected, and the core wires do not contact with the wire cutting blades anymore), the light emitting diode which has emitted light once would continue emitting light. Therefore, it becomes easy to determine whether there is a disconnection based on whether the light emitting diodes emit light. In this case, it becomes unnecessary to stop the dropping action of the wire-cutting blade of the drive circuit when the wire-cutting blade contacts with the core wire.
<5- Disconnection of the back ends of the covered electric wires W2> After the conduction is determined with the conduction inspection, in a step S5 of Fig. 5, the drive circuit resumes the dropping action of the wire-cutting blade by pushing a resume button not shown in the diagram, and finally the back ends of the covered electric wire W2 are disconnected.
<When there is a non-conductive part in the core wire of the covered electric wire>
When there is a non-conductive part (or disconnection) in the core wire C of the covered electric wire W2, even if the wire-cutting blade M2 half cuts into the core wire C, the conduction inspecting circuit of the conduction inspecting system of Fig. 2 does not form an electrically closed circuit. Therefore, the drive circuit makes the wire-cutting blade M2 drop to the bottom without stopping the dropping action of the wire-cutting blade M2, and the back end of the covered electric wire W2 is disconnected.
Therefore, since there is no confirmation action, this becomes an evidence (or proof) that a non- conductive part exists in the core wire of the covered electric wire.
<The same actions on the covered electric wires Wl and W3> The conduction inspection on the covered the covered electric wire W2 is described above, the same actions as above are also applied to the covered electric wires Wl and W3 in principle. However, because the covered electric wires Wl and W3 are different from the covered the covered electric wire W2, the attaching positions of the wire cutting blades Ml, M2 and M3, as shown in Fig. IB, are different from each other. Therefore, the back ends of the covered electric wires Wl, W2 and W3 would be
disconnected at different positions, respectively.
As shown in Fig. 9A, for the back ends of the electric wires W, all of the three wires have the same length previously, but after the conduction inspection is performed by the conduction inspecting and electric wire cutting device 1 according to the embodiment of the present invention, the back ends of the covered electric wires W are processed so that all of the three wires have different lengths, as shown by the covered electric wires Wl', W2' and W3' of Fig. 17A.
<Effect of that the back ends of the covered electric wires are different from each other in length>
A terminal process is performed by bundling up the back ends of the covered electric wires Wl', W2' and W3' (Fig. 17A) and repeating wmding with insulating tapes to the covered electric wires Wl, W2 and W3 derived from the second connector 60 at the other side. In this case, however, even if the back ends of the covered electric wires Wl', W2' and W3 'are bundled up, because the lengths are different, there is an effect that short-circuit among each other needs not to be worried.
By incorporating the conduction inspecting method using the conduction inspecting and electric wire cutting device according to the embodiment of the present invention in the manufacturing steps of a wire harness, because the conduction inspection is accomplished when the wire harness is made, this kind of inspection can be omitted after the product is completed.
That is, (l) covered electric wires which are supplied from an electric wire supply part are sent out by a roller after the length of the covered electric wires is measured by the roller. (2) The covered electric wires are disconnected with a predetermined length. (3) Terminals are attached to the ends of the disconnected covered electric wires and received in a connector housing. (4) When the ends of the covered electric wires which are connected to the received terminals are to be disconnected, the conduction of the covered electric wires is inspected using the conduction inspecting and electric wire cutting device according to the embodiment of the present invention.
Thus, when the embodiment of the present invention is applied in the manufacturing steps of the wire harness, the conduction inspection can be omitted after the product is completed because the conduction inspection is accomplished when the wire harness is produced.
For example, a manufacturing method of the wire harness, which is disclosed in JP-A-2008-39748, can be referred to.
<A manufacturing device of wire harnesses as described in
JP-A-2008-39748 >
The manufacturing device of wire harnesses includes an electric wire changing device, an automatic cutting device, a control unit, an automatic crimping device, a display terminal and a conduction inspecting device. The control unit performs the overall controls, and the display terminal displays the contents of each step.
l) A reel on which desired electric wires are wound is taken out from a plurality of electric wire reels by the electric wire changing device, replacement is made, and the selected electric wires are supplied to the automatic cutting device.
2) The electric wires supplied from the electric wire changing device are disconnected by the automatic cutting device in a predetermined length. 3) Terminals are crimped to the ends of the electric wires
disconnected by the automatic cutting device by the automatic crimping device.
4) Conduction inspection is performed by the conduction inspecting device using the two terminals of the crimped electric wire.
As described above, because the operations of machining, wiring, and inspecting one electric wire can be performed continually, the operation time can be shortened.
The conduction inspecting and electric wire cutting device 1 according to the embodiment of the present invention could be used as the automatic cutting device of above (2).
Then, because the conduction is confirmed by the conduction inspecting and electric wire cutting device 1, the conduction inspection of (4) can be omitted.
Further, when the conduction inspection of (4) is performed using the two terminals of the electric wire which are crimped by the crimping device of (3), if the conduction inspection using the crimped terminals does not pass, the crimped terminals become wasted. According to the embodiment of the present invention, however, because the conduction inspection can be performed when the terminals are not crimped, it can be avoided that the terminal becomes wasted beforehand.
<Conclusion of the embodiment of the present invention>
According to the embodiment of the present invention, the conduction inspection of the covered electric wire which is provided in the connector in which there is not a conductive component is possible by making the wire-cutting blade of the conduction inspecting and electric wire cutting device cut into the core wire of the covered electric wire.
When the wire-cutting blade cuts into the core wire of the covered electric wire, because the drop of the wire-cutting blade is stopped, it is possible to have enough time to carefully confirm the conduction.
The plurality of wire-cutting blades are placed to be staggered with each other in the length direction of the covered electric wires. Even if the back ends of the covered electric wires are bundled up and wound with insulating tapes, short circuit among each other need not to be worried because the lengths of the back ends of the covered electric wires are different from each other.
Because the conduction inspection is accomplished when the wire harness is produced, this kind of inspection can be omitted after the product is completed.
The conduction inspection and the manufacture of the electric wires with the wire holder are easily performed by cutting the other ends of the covered electric wires.
This application is based on and claims the benefit of Japanese patent application No. 2011-060357 filed on March 18, 2011, the contents of which are incorporated herein in its entirety by reference.

Claims

1. A method for inspecting conduction of a covered electric wire, the method comprising:
connecting a conductive wire-cutting blade to an end of a power source through an electric wire;
connecting a core wire of one end of the covered electric wire to another end of the power source,' and
causing the wire-cutting blade to contact with the core wire of the covered electric wire in a middle of cutting the other end of the covered electric wire with the wire-cutting blade to inspect the conduction of the covered electric wire.
2. The method according to claim 1, comprising:
dropping the wire-cutting blade downward with respect to the covered electric wire, wherein a dropping action of the wire-cutting blade is interrupted when it is detected that the wire-cutting blade contacts with the core wire of the covered electric wire.
3. A method for automatically producing a covered electric wire provided with a connector, the method comprising:
measuring and sending out by a roller the covered electric wire which is supplied from an electric wire supply part;
disconnecting the covered electric wire with a predetermined length; and attaching a terminal to one end of the disconnected covered electric wire and receiving the terminal in a connector housing, wherein
the method for inspecting the conduction as defined in claim 1 or claim 2 is performed when the other end of the covered electric wire which is connected to the received terminal is to be disconnected.
4. The method according to claim 3, comprising:
attaching a wire holder in a middle of a wire harness in which a plurality of covered electric wires are arranged in parallel to each other, wherein the other end of the covered electric wire is disconnected with the wire-cutting blade after inspecting the conduction.
5. A wire harness produced by the method as defined in any one of claims 1 to 4.
6. A conduction inspecting and electric wire cutting device, comprising:
a movable part; and
a fixed part which is arranged below the movable part, wherein the movable part includes a plurality of conductive wire-cutting blades which are directed toward the fixed part and staggered back and forth in a lengthwise direction of a plurality of covered electric wires, and conductive metals which are respectively connected to the plurality of wire-cutting blades and extend to a side surface of the movable part,
the fixed part includes a driving device that drives the plurality of wire-cutting blades, a plurality of blade-insertion holes formed on a side of the movable part to insert the plurality of wire-cutting blades therein, respectively, and a plurality of wire-insertion holes formed in a side surface of the fixed part to insert the plurality of covered electric wires, respectively and extend to positions beyond corresponding positions where the plurahty of wire cutting blades drop, and
the driving device interrupts a dropping action of the plurality of wire-cutting blades when the plurahty of wire -cutting blades contact with corresponding core wires of the plurality of covered electric wires.
7. A method for automatically producing a covered electric wire provided with a connector, the method comprising:
disconnecting an end of a wire harness in which the plurahty of covered electric wires are arranged in parallel to each other;
attaching a wire holder in a vicinity of the end of the wire harness; and
inserting the plurahty of covered electric wires at the end of the wire harness in the plurahty of wire-insertion holes of the conduction inspecting and electric wire cutting device as defined in claim 6 to perform inspecting the conduction, and then, disconnecting the plurality of covered electric wires at the end of the wire harness with the plurality of
wire-cutting blades.
PCT/JP2012/057674 2011-03-18 2012-03-16 Method and device for inspecting conduction of covered electric wire Ceased WO2012128381A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-060357 2011-03-18
JP2011060357A JP2012194154A (en) 2011-03-18 2011-03-18 Method and apparatus for inspecting conduction of coated wire

Publications (1)

Publication Number Publication Date
WO2012128381A1 true WO2012128381A1 (en) 2012-09-27

Family

ID=46001681

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/057674 Ceased WO2012128381A1 (en) 2011-03-18 2012-03-16 Method and device for inspecting conduction of covered electric wire

Country Status (2)

Country Link
JP (1) JP2012194154A (en)
WO (1) WO2012128381A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611919A (en) * 2020-12-24 2021-04-06 南京茽鈤技术服务有限公司 New material production is with electric conductivity detection device
CN116879102A (en) * 2023-09-06 2023-10-13 江苏博朗森思医疗器械有限公司 Cutting anastomat detection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101985495B1 (en) * 2018-07-14 2019-07-03 (주)우진시스템 An electroscope for sensing multi-channel

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110880A (en) * 1977-02-25 1978-09-05 Amp Incorporated Cable harness assembly and electrical testing machine
US4160947A (en) * 1976-10-26 1979-07-10 Dainichi-Nippon Cables, Ltd. Apparatus and method for electrically testing multi-core cable
US4285118A (en) * 1977-02-25 1981-08-25 Amp Incorporated Cable harness assembly and electrical testing machine
US4870752A (en) * 1987-12-15 1989-10-03 Amp Incorporated Cable harness manufacturing and electrical testing system
JP2006147273A (en) 2004-11-18 2006-06-08 Kel Corp Wire pressure welding type connector
JP2008039748A (en) 2006-08-10 2008-02-21 Hitachi Ltd Electric wire processing continuity inspection device
JP2011060357A (en) 2009-09-08 2011-03-24 Asahi Glass Co Ltd Optical head device
JP2011113802A (en) 2009-11-26 2011-06-09 Yazaki Corp Connector and wire harness connection structure in vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160947A (en) * 1976-10-26 1979-07-10 Dainichi-Nippon Cables, Ltd. Apparatus and method for electrically testing multi-core cable
US4110880A (en) * 1977-02-25 1978-09-05 Amp Incorporated Cable harness assembly and electrical testing machine
US4285118A (en) * 1977-02-25 1981-08-25 Amp Incorporated Cable harness assembly and electrical testing machine
US4870752A (en) * 1987-12-15 1989-10-03 Amp Incorporated Cable harness manufacturing and electrical testing system
JP2006147273A (en) 2004-11-18 2006-06-08 Kel Corp Wire pressure welding type connector
JP2008039748A (en) 2006-08-10 2008-02-21 Hitachi Ltd Electric wire processing continuity inspection device
JP2011060357A (en) 2009-09-08 2011-03-24 Asahi Glass Co Ltd Optical head device
JP2011113802A (en) 2009-11-26 2011-06-09 Yazaki Corp Connector and wire harness connection structure in vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611919A (en) * 2020-12-24 2021-04-06 南京茽鈤技术服务有限公司 New material production is with electric conductivity detection device
CN112611919B (en) * 2020-12-24 2024-01-26 深圳市绿星科技有限公司 Conductivity detection device is used in new material production
CN116879102A (en) * 2023-09-06 2023-10-13 江苏博朗森思医疗器械有限公司 Cutting anastomat detection device
CN116879102B (en) * 2023-09-06 2023-11-17 江苏博朗森思医疗器械有限公司 Cutting anastomat detection device

Also Published As

Publication number Publication date
JP2012194154A (en) 2012-10-11

Similar Documents

Publication Publication Date Title
KR101510172B1 (en) Power supply control device
US20210344084A1 (en) Creating a low-voltage path of a cell-contacting system
JP4348059B2 (en) Wiring sheet, electric junction box and electric wire cutting method
US20120043986A1 (en) Junction box with test contact
EP2783902B1 (en) Power supply control device for charging an electric vehicle
US10680225B2 (en) Connection apparatus for connecting battery module and electronic device, and method for manufacturing insulating cover
JP2012194154A (en) Method and apparatus for inspecting conduction of coated wire
JP2017098092A (en) Wire harness manufacturing support device and connector bar
CN206834145U (en) The controller of electronic type residual current circuit breaker
JP3764630B2 (en) Connector continuity inspection apparatus and connector continuity inspection method
JP6488180B2 (en) Wire harness manufacturing apparatus and wire harness manufacturing method
JP6199383B2 (en) Load bus assembly and manufacturing method thereof
KR101679686B1 (en) Sensor unit, method for producing sensor unit and apparatus for producing sensor unit
JP2024076186A (en) Circuit Breakers
CN107248487A (en) The controller of electronic type residual current circuit breaker
JP4082605B2 (en) Electrical component induction device
JP5887746B2 (en) Switching module, circuit structure, electrical junction box
JP4082603B2 (en) Electronic component assembly equipment
JP7740955B2 (en) Circuit breakers and distribution boards
JP2017098090A (en) Method for manufacturing wire harness
JP5946689B2 (en) Distribution board
CN217061920U (en) Time relay
US20250377017A1 (en) Position sensor routing support, magnetic bearing module and production method
JP2024132535A (en) Circuit breakers and distribution boards
JP2024146534A (en) Circuit breakers and distribution boards

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12716683

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12716683

Country of ref document: EP

Kind code of ref document: A1