WO2021235190A1 - 同軸ケーブルに対するスリーブの取付装置、同軸ケーブルに対するスリーブの取付方法、及びシールド導電路 - Google Patents

同軸ケーブルに対するスリーブの取付装置、同軸ケーブルに対するスリーブの取付方法、及びシールド導電路 Download PDF

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Publication number
WO2021235190A1
WO2021235190A1 PCT/JP2021/016698 JP2021016698W WO2021235190A1 WO 2021235190 A1 WO2021235190 A1 WO 2021235190A1 JP 2021016698 W JP2021016698 W JP 2021016698W WO 2021235190 A1 WO2021235190 A1 WO 2021235190A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
braided wire
expansion
coaxial cable
jig
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/JP2021/016698
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
敦 村田
和明 浜田
佑介 小島
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.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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 Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to US17/922,902 priority Critical patent/US20230170676A1/en
Priority to CN202180035084.0A priority patent/CN115552742A/zh
Publication of WO2021235190A1 publication Critical patent/WO2021235190A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/025—Cable terminations for coaxial cables or hollow conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present disclosure relates to a sleeve mounting device for a coaxial cable, a sleeve mounting method for a coaxial cable, and a shielded conductive path.
  • Patent Document 1 discloses a connection structure between a contact means and a coaxial cable.
  • a metal sleeve (ferrule) is fitted on the braided wire (outer conductor) of the coaxial cable, the front end of the braided wire is folded back to cover the outer circumference of the sleeve, and the sleeve and the braided wire are folded back.
  • the crimping portion of the contact means is crimped to the outer periphery of the front end portion.
  • the sleeve is made of a U-shaped plate material, and is externally fitted to the braided wire by being deformed so as to be wound around the outer circumference of the braided wire. In the state where the braided wire is fitted outward, both end edges of the sleeve in the circumferential direction are in contact with each other in the circumferential direction. This abutment keeps the inner diameter of the sleeve from becoming too small.
  • the edges of both ends of the sleeve do not abut and overlap in the radial direction, and there is a concern that the inner diameter of the sleeve will become too small. If the inner diameter of the sleeve becomes too small, the distance between the core wire of the coaxial cable and the braided wire in the radial direction becomes small, and impedance matching is lost, which may lead to deterioration of communication performance.
  • the sleeve formed into a cylindrical shape may be fitted onto the braided wire from the front of the coaxial cable.
  • the braided wire is made by weaving a plurality of metal strands in a net shape, and since the metal strand is cut at the front end of the braided wire, the metal strand is deformed so as to spread at the front end of the braided wire. It is inevitable to do. Therefore, it is difficult to fit the sleeve formed into a cylindrical shape to the braided wire from the front.
  • the mounting device, mounting method, and shielded conductive path of the present disclosure have been completed based on the above circumstances, and an object thereof is to externally fit a sleeve formed into a cylindrical shape to a braided wire. ..
  • the sleeve mounting device for the coaxial cable of the first disclosure is A device for attaching a tubular sleeve to a coaxial cable in which the front end of the braided wire is exposed in front of the sheath so as to be fitted onto the braided wire. It has an expansion control unit that regulates expansion deformation of the braided wire, and can be displaced relative to the braided wire in the axial direction with the expansion restriction unit in contact with the outer peripheral surface of the braided wire. Equipped with an opening regulation jig, The expansion restricting jig is formed with a positioning portion for positioning the sleeve concentrically with the braided wire in a state where the sleeve is arranged in front of the expansion restriction portion.
  • the method of attaching the sleeve to the coaxial cable of the second disclosure is as follows. It is an attachment method for attaching a tubular sleeve to a coaxial cable in which the front end of the braided wire is exposed in front of the sheath so as to be fitted onto the braided wire.
  • An expansion regulating jig having an expansion regulating portion that regulates expansion deformation of the braided wire and a positioning portion that positions the sleeve concentrically with the braided wire in front of the expansion restricting portion is provided. so, The expansion restricting portion is fitted onto the front end portion of the braided wire.
  • the sleeve is positioned concentrically with the braided wire by the positioning portion.
  • the expansion restricting jig and the sleeve are integrally slid rearward to move the sleeve to a position surrounding the braided wire. Move it.
  • the shielded conductive path of the third disclosure is A coaxial cable with the front end of the braided wire exposed in front of the sheath, A sleeve that is formed into a cylindrical shape and is attached to the coaxial cable so as to fit outside the braided wire. It is provided with an outer conductor crimped to the coaxial cable while surrounding the sleeve.
  • a tapered guide surface is formed on the inner peripheral surface of the rear end of the sleeve so as to increase the inner diameter toward the rear end.
  • a sleeve formed into a cylindrical shape can be fitted onto the braided wire.
  • FIG. 1 is a side sectional view of the shielded conductive path of the first embodiment.
  • FIG. 2 is a side sectional view of the sleeve.
  • FIG. 3 is a side sectional view of the expansion control jig.
  • FIG. 4 is a front view of the expansion control jig.
  • FIG. 5 is a side sectional view of the positioning jig.
  • FIG. 6 is a front view of the positioning jig.
  • FIG. 7 is a side sectional view of the spacer jig.
  • FIG. 8 is a front view of the spacer jig.
  • FIG. 9 is a side sectional view showing a state in which the expansion control jig is attached to the coaxial cable.
  • FIG. 10 is a side sectional view showing a state in which the expansion of the front end of the braided wire is restricted by the expansion regulation jig.
  • FIG. 11 is a side sectional view showing a state in which the sleeve is positioned concentrically with respect to the braided wire.
  • FIG. 12 is a side sectional view showing a state in which the sleeve is fitted on the braided wire.
  • FIG. 13 is a side sectional view showing a state in which the expansion control jig and the positioning jig are removed from the coaxial cable.
  • FIG. 14 is a side sectional view showing a state in which a spacer jig is attached to the coaxial cable.
  • FIG. 15 is a side sectional view showing a state in which the sleeve is surrounded by the folded portion of the braided line.
  • FIG. 16 is a side sectional view showing a state in which the core wire is exposed in front of the braided wire.
  • the sleeve mounting device for the coaxial cable of the first disclosure is (1) A device for attaching a tubular sleeve to a coaxial cable having an exposed front end of the braided wire in front of the sheath so as to be fitted onto the braided wire, and expanding the braided wire. It has an expansion control unit that regulates deformation, and is equipped with an expansion regulation jig that can be displaced relative to the braided wire in the axial direction with the expansion restriction unit in contact with the outer peripheral surface of the braided wire.
  • the expansion restricting jig is formed with a positioning portion for positioning the sleeve concentrically with the braided wire in a state where the sleeve is arranged in front of the expansion restriction portion.
  • the expansion restricting portion is fitted onto the front end of the braided wire, and the sleeve is positioned concentrically with the braided wire in front of the braided wire.
  • a sleeve formed into a cylindrical shape can be fitted onto a braided wire.
  • the positioning portion has a form in which the rear end of the sleeve is adjacent to the front end of the expansion restricting portion. According to this configuration, in the process of sliding the positioning member and the sleeve rearward, the front end portion of the braided wire does not expand in the gap between the front end of the expansion restricting portion and the rear end of the sleeve. Therefore, the step of outerly fitting the sleeve to the braided wire can be smoothly performed.
  • the expansion control jig is configured by combining a pair of expansion control members forming a half-split shape. According to this configuration, the expansion control jig can be easily attached to and detached from the braided wire.
  • the positioning jig is configured by combining a pair of positioning members forming a half-split shape. According to this configuration, it is possible to easily remove the positioning jig from the sleeve after the sleeve is fitted onto the braided wire.
  • a spacer jig for holding the rear end of the sleeve at a position separated forward from the front end of the sheath.
  • the method of attaching the sleeve to the coaxial cable of the second disclosure is as follows. (7)
  • This is an attachment method for attaching a tubular sleeve to a coaxial cable in which the front end portion of the braided wire is exposed in front of the sheath so as to be fitted onto the braided wire, and is an expansion of the braided wire.
  • the expansion is provided with an expansion regulation jig having an expansion regulation portion for restricting the expansion deformation and a positioning portion for positioning the sleeve concentrically with the braided wire in front of the expansion regulation portion.
  • the restricting portion is fitted onto the front end portion of the braided wire, the sleeve is positioned concentrically with the braided wire by the positioning portion, and the expansion restricting portion is in contact with the outer peripheral surface of the braided wire.
  • the expansion restricting jig and the sleeve integrally backward By sliding the expansion restricting jig and the sleeve integrally backward, the sleeve is moved to a position surrounding the braided wire.
  • the front end portion of the braided wire is held in a non-expanded state, so that the sleeve does not interfere with the front end of the braided wire. Move to a position that surrounds the braided line.
  • a sleeve formed into a cylindrical shape can be fitted onto the braided wire.
  • the shielded conductive path of the third disclosure is (8) A coaxial cable in which the front end of the braided wire is exposed in front of the sheath, a sleeve that is formed into a cylindrical shape and is attached to the coaxial cable so as to be fitted onto the braided wire, and the sleeve.
  • the inner peripheral surface of the rear end portion of the sleeve is provided with an outer conductor crimped to the coaxial cable in a state of surrounding the sleeve, and a tapered guide surface inclined so that the inner diameter dimension increases toward the rear end. Is formed.
  • the braided wire is provided by the guide surface.
  • the front end of the sleeve can be accommodated in the sleeve.
  • a sleeve formed into a cylindrical shape can be fitted onto the braided wire.
  • FIGS. 1 to 16 The first embodiment of the present disclosure will be described with reference to FIGS. 1 to 16. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
  • the left side in FIGS. 1 to 3, 5, 7, 9 to 16 is defined as the front.
  • the directions appearing in FIGS. 1 to 16 are defined as upward and downward as they are.
  • the shielded conductive path A of the first embodiment includes a shielded terminal 10, a coaxial cable 20, and a sleeve 27.
  • the shield terminal 10 includes an inner conductor 11, a dielectric 12 containing the inner conductor 11, and an outer conductor 13 attached to the dielectric 12 in a state of surrounding the outer periphery of the dielectric 12.
  • the outer conductor 13 includes a square tubular main body portion 14 that constitutes the front end portion of the outer conductor 13, and a cylindrical crimping portion 15 that is connected to the rear end of the main body portion 14 and forms the rear end portion of the outer conductor 13. It is configured with.
  • the inner conductor 11 and the dielectric 12 are housed in the main body 14.
  • the crimping portion 15 is a portion for fixing the outer conductor 13 to the outer periphery of the coaxial cable 20.
  • the crimping portion 15 has a well-known open barrel shape having a substrate portion extending rearward from the rear end of the main body portion 14 and a caulking piece extending in the circumferential direction from the side edge of the substrate portion.
  • a plurality of locking pieces 16 in a form protruding inward in the radial direction are formed on the rear end edge of the crimping portion 15.
  • the coaxial cable 20 has a well-known form in which the core wire 21 is surrounded by an insulating coating 22, the outer circumference of the insulating coating 22 is surrounded by a tubular braided wire 23, and the outer periphery of the braided wire 23 is surrounded by a sheath 24.
  • the front end portion of the coaxial cable 20 is arranged with the axis directed in the front-rear direction.
  • the sheath 24 and the insulating coating 22 are removed, the core wire 21 is exposed in front of the insulating coating 22, and the sheath 24 is removed to expose the braided wire 23.
  • the front end portion of the insulating coating 22 is housed in the crimping portion 15, and the front end portion of the core wire 21 is conductively fixed to the rear end portion of the inner conductor 11.
  • the sleeve 27 is fitted on the outer circumference of the braided wire 23.
  • the front end portion of the braided wire 23 is a folded portion 25 folded rearward in the vicinity of the front end portion of the sleeve 27.
  • the folded-back portion 25 surrounds the entire outer circumference of the sleeve 27.
  • a crimping portion 15 is crimped to the outer periphery of the folded portion 25 by caulking.
  • the radial inward caulking force of the crimping portion 15 is received by the sleeve 27, and the folded-back portion 25 is radially sandwiched between the sleeve 27 and the crimping portion 15.
  • the outer conductor 13 having a shielding function and the braided wire 23 having a shielding function are connected so as to be conductive at the crimping portion 15.
  • a gap in the front-rear direction is secured between the rear end 27R of the sleeve 27 and the front end 24F of the sheath 24, and the locking piece 16 of the crimping portion 15 is housed in this gap.
  • the locking piece 16 is arranged so as to be in contact with or close to the rear end 27R of the sleeve 27 from the rear.
  • the sleeve 27 is not a metal plate formed into a flat plate and bent into a circular shape, but is formed into a cylindrical shape connected over the entire circumference from the beginning. As shown in FIG. 2, a tapered guide surface 28 is formed on the inner circumference of the rear end portion of the sleeve 27 so as to be inclined so that the inner diameter gradually decreases toward the front. Since the sleeve 27 does not have a seam that abuts in the circumferential direction, it has high rigidity and can reliably receive the radial inward caulking force acting on the sleeve 27 from the crimping portion 15.
  • the radial distance between the core wire 21 and the braided wire 23 is kept constant between the portion of the coaxial cable 20 where the crimping portion 15 is crimped and the portion where the crimping portion 15 is not crimped. Is done. As a result, the impedance can be matched, so that the coaxial cable 20 has high communication performance.
  • the braided wire 23 is obtained by braiding a plurality of fine metal wires in a mesh shape and cutting the metal strands at the front end of the braided wire 23, the cut end of the thin metal wire is radially outward at the front end portion of the braided wire 23. It transforms to warp.
  • the sleeve 27 is formed into a cylindrical shape having no seams, and the inner diameter of the sleeve 27 is the same as or slightly larger than the outer diameter of the braided wire 23. Therefore, if the sleeve 27 is to be fitted onto the braided wire 23 from the front of the coaxial cable 20, the thin metal wire whose diameter has been expanded and deformed will interfere with the sleeve 27.
  • the mounting device 30 described below is used in the first embodiment.
  • the mounting device 30 uses an expansion control jig 31, a positioning jig 37, and a spacer jig 43.
  • the expansion restricting jig 31 is configured by vertically combining a pair of expansion restricting members 32 having a vertically symmetrical half-split shape.
  • An expansion restriction recess 33 and a positioning recess 34 are formed on the inner surface of each expansion regulation member 32.
  • the cross-sectional shape (hereinafter, simply referred to as “cross-sectional shape”) obtained by cutting the expansion restriction recess 33 at a right angle to the front-rear direction is a semicircular shape.
  • the cross-sectional shape of the positioning recess 34 is a semicircle concentric with the expansion restriction recess 33.
  • the expansion restriction portion 35 having a circular cross section is formed by the pair of expansion restriction recesses 33, and the hole of the circular cross section is formed by the pair of positioning recesses 34.
  • a positioning portion 36 having a shape is formed.
  • the expansion control unit 35 is formed in the rear end side region in the front-rear direction of the expansion regulation jig 31.
  • the rear end of the expansion restricting portion 35 is circularly opened on the rear end surface of the expansion restriction jig 31.
  • the inner diameter dimension of the expansion restricting portion 35 is a constant dimension over the entire length of the expansion regulation portion 35, and is the same as the outer diameter dimension of the braided wire 23 and the inner diameter dimension of the sleeve 27.
  • the positioning portion 36 is formed in the front end side region of the expansion restricting jig 31 in the front-rear direction, and is arranged concentrically with the expansion restriction portion 35.
  • the front end of the positioning portion 36 is circularly opened on the front end surface of the expansion control jig 31.
  • the inner diameter dimension of the positioning portion 36 is constant over the entire length of the positioning portion 36.
  • the inner diameter of the positioning portion 36 is larger than the inner diameter of the expansion restricting portion 35, and is the same as the outer diameter of the positioning jig 37.
  • the positioning jig 37 is configured by vertically combining a pair of positioning members 38 having a vertically symmetrical half-split shape.
  • the cross-sectional shape of the outer surface of each positioning member 38 is semi-circular.
  • the cross-sectional shape of the outer peripheral surface of the positioning jig 37 is circular.
  • the outer diameter of the positioning jig 37 is the same as the inner diameter of the positioning portion 36 of the expansion control jig 31.
  • a holding recess 39 and a reduced diameter recess 40 are formed on the inner surface of each positioning member 38.
  • the cross-sectional shape of the holding recess 39 is a semicircle concentric with the outer surface of the positioning jig 37.
  • the cross-sectional shape of the reduced diameter recess 40 is a semicircle concentric with the outer surface of the positioning jig 37 and the holding recess 39.
  • the hole-shaped holding portion 41 is formed by the pair of holding recesses 39
  • the hole-shaped reduced diameter portion 42 is formed by the pair of diameter-reduced recesses 40.
  • the cross-sectional shape of the holding portion 41 and the reduced diameter portion 42 is a circular shape concentric with the outer peripheral surface of the positioning jig 37.
  • the holding portion 41 is formed in the rear end side region in the front-rear direction of the positioning jig 37.
  • the rear end of the holding portion 41 is circularly open on the rear end surface of the positioning jig 37.
  • the inner diameter of the holding portion 41 is a constant dimension over the entire length of the holding portion 41, and is the same as the outer diameter dimension of the sleeve 27.
  • the reduced diameter portion 42 is formed in the front end side region in the front-rear direction of the positioning jig 37, and is arranged concentrically with the holding portion 41.
  • the rear end of the reduced diameter portion 42 and the front end of the holding portion 41 communicate with each other in a stepped state in an adjacent state.
  • the front end of the reduced diameter portion 42 is circularly open on the front end surface of the positioning jig 37.
  • the inner diameter dimension of the reduced diameter portion 42 is constant over the entire length of the reduced diameter portion 42.
  • the inner diameter of the reduced diameter portion 42 is smaller than the inner diameter of the holding portion 41 and is the same as the inner diameter of the expansion restricting portion 35.
  • the spacer jig 43 is configured by vertically combining a pair of spacer members 44 having a vertically symmetrical half-split shape.
  • a large-diameter recess 45 having a semi-circular cross-sectional shape and a small-diameter recess 46 having a semi-circular cross-sectional shape concentric with the large-diameter recess 45 are formed.
  • the pair of large-diameter recesses 45 form a large-diameter portion 47 having a circular cross-section
  • the pair of small-diameter recesses 46 form a small-diameter portion having a circular cross-section.
  • the portion 48 is formed.
  • the large diameter portion 47 is formed in the rear end side region in the front-rear direction of the spacer jig 43.
  • the rear end of the large diameter portion 47 is circularly open on the rear end surface of the spacer jig 43.
  • the inner diameter of the large diameter portion 47 is a constant dimension over the entire length of the large diameter portion 47, and is the same as the outer diameter dimension of the sheath 24.
  • the small diameter portion 48 is formed in the front end side region in the front-rear direction of the spacer jig 43, and is arranged concentrically with the large diameter portion 47.
  • the rear end of the small diameter portion 48 and the front end of the large diameter portion 47 communicate with each other in a stepped state in an adjacent state.
  • the front end of the small diameter portion 48 is circularly open on the front end surface of the spacer jig 43.
  • the inner diameter dimension of the small diameter portion 48 is constant over the entire length of the small diameter portion 48.
  • the inner diameter of the small diameter portion 48 is larger than the outer diameter of the braided wire 23 and smaller than the outer diameter of the sheath 24.
  • a mounting method for mounting the sleeve 27 to the coaxial cable 20 using the mounting device 30 and a procedure for preparing the braided wire 23 for crimping the crimping portion 15 of the outer conductor 13 will be described.
  • a circumferential cut is made in the sheath 24, and as shown in FIG. 9, the cut piece 26 in front of the cut in the sheath 24 is slid forward.
  • the cutting piece 26 keeps the front end portion of the braided wire 23 in a state of being in close contact with the cut piece 26, and keeps the front end portion 23F of the braided wire 23 in a state of not expanding.
  • the expansion restricting recess 33 is inserted between the front end 24F of the sheath 24 and the cutting piece 26 while the pair of expansion regulating members 32 are combined to form the braided wire. It is brought into close contact with the outer peripheral surface of 23.
  • the expansion restricting jig 31 and the cutting piece 26 are slid forward while sliding the expansion restricting portion 35 against the outer peripheral surface of the braided wire 23.
  • the front end portion of the expansion restricting portion 35 surrounds the front end 23F of the braided wire 23 in a close contact state.
  • the front end of the expansion restricting portion 35 is located at the same position as the front end 23F of the braided line 23 in the front-rear direction or in front of the front end 23F of the braided line 23. Therefore, the front end 23F of the braided wire 23 is not expanded and deformed.
  • the pair of positioning members 38 are united, the sleeve 27 is fitted to the holding portion 41, and the positioning jig 37 and the sleeve 27 are integrated.
  • the integrated positioning jig 37 and sleeve 27 are assembled to the expansion control jig 31 from the front.
  • the sleeve 27 of the positioning jig 37 is held at the rear end side portion of the positioning jig 37.
  • the forming region of the holding portion 41 is fitted into the positioning portion 36.
  • the sleeve 27 and the positioning jig 37 are positioned in a state in which the relative displacement in the rearward direction is restricted and the relative displacement in the radial direction is restricted with respect to the expansion restricting jig 31. That is, the rear end 27R of the sleeve 27 and the front end 35F of the expansion restricting portion 35 are positioned concentrically in a state of being adjacent to each other in the front-rear direction.
  • the rear end 27R of the sleeve 27 is positioned so as to line up in the front-rear direction with a slight gap (distance from the front end 23F of the braided wire 23 to the front end 35F of the expansion restricting portion 35) with respect to the front end 23F of the braided wire 23. ..
  • the expansion control jig 31, the positioning jig 37, and the sleeve 27 are integrally slid backward so that the sleeve 27 is fitted onto the braided wire 23.
  • the rear end of the sleeve 27 27R is fitted onto the braided wire 23.
  • a tapered guide surface 28 is formed on the inner circumference of the rear end portion of the sleeve 27.
  • the front end 35F of the expansion restricting portion 35 is the braided wire.
  • the guide surface 28 deforms the front end 23F of the braided wire 23 in a reduced diameter. Therefore, the sleeve 27 fits outside the braided wire 23 without interfering with the front end 23F of the braided wire 23.
  • the expansion control jig 31 and the positioning jig 37 are separated from the coaxial cable 20 by dividing them into upper and lower parts. Even if the expansion control jig 31 and the positioning jig 37 are removed from the coaxial cable 20, the sleeve 27 is held in a state of being externally fitted to the braided wire 23. At this time, the entire sleeve 27 may be moved to the rear of the front end 23F of the braided wire 23, and the front end of the sleeve 27 may be located in front of the front end 23F of the braided wire 23. This completes the process of externally fitting the sleeve 27 to the braided wire 23.
  • the pair of spacer members 44 are attached to the coaxial cable 20 while being united.
  • the large diameter portion 47 is fitted onto the front end portion of the sheath 24, and the rear end of the small diameter portion 48 is brought into contact with the front end 24F of the sheath 24.
  • the area of the braided wire 23 in front of the sleeve 27 is folded back and covered with the outer circumference of the sleeve 27.
  • the portion of the braided wire 23 that covers the sleeve 27 becomes the folded portion 25 that is crimped to the crimping portion 15 of the outer conductor 13.
  • the front end portion of the insulating coating 22 is removed in front of the braided wire 23, and the front end portion of the core wire 21 is exposed so as to be connectable to the inner conductor 11. This completes the attachment of the sleeve 27 to the coaxial cable 20.
  • the front end portion of the coaxial cable 20 is assembled to the shield terminal 10, the core wire 21 is fixed to the inner conductor 11, and the crimping portion 15 of the outer conductor 13 is crimped to the folded portion 25 of the braided wire 23.
  • the mounting device 30 of the first embodiment is for mounting the tubular sleeve 27 so as to be fitted onto the braided wire 23 with respect to the coaxial cable 20 in which the front end portion of the braided wire 23 is exposed in front of the sheath 24. It is a device.
  • the mounting device 30 includes an expansion control jig 31.
  • the expansion control jig 31 has an expansion regulation unit 35 that regulates expansion deformation of the braided wire 23.
  • the expansion restricting jig 31 can be displaced relative to the braided wire 23 in the axial direction (front-back direction) with the expansion restricting portion 35 in contact with the outer peripheral surface of the braided wire 23.
  • the expansion restricting jig 31 is formed with a positioning portion 36 for positioning the sleeve 27 concentrically with the braided wire 23 in a state where the sleeve 27 is arranged in front of the expansion restriction portion 35.
  • the expansion restricting portion 35 When attaching the sleeve 27 to the braided wire 23, the expansion restricting portion 35 is fitted outward to the front end portion of the braided wire 23, and the sleeve 27 is positioned concentrically with the braided wire 23 in front of the braided wire 23 and expanded.
  • the regulation jig 31 and the sleeve 27 are integrally slid backward. Since the front end portion of the braided wire 23 is held in a non-expanded state by the expansion restricting portion 35, the sleeve 27 moves to a position surrounding the braided wire 23 without interfering with the front end portion 23F of the braided wire 23. do. Therefore, according to the mounting device 30 of the first embodiment, the sleeve 27 formed into a cylindrical shape can be externally fitted to the braided wire 23.
  • the positioning portion 36 has a form in which the rear end 27R of the sleeve 27 is adjacent to the front end 35F of the expansion restricting portion 35.
  • the front end portion of the braided wire 23 does not expand in the gap between the front end 35F of the expansion restricting portion 35 and the rear end 27R of the sleeve 27. Therefore, the process of externally fitting the sleeve 27 to the braided wire 23 can be smoothly performed. Since the expansion restricting jig 31 is configured by combining a pair of expansion restricting members 32 having a half-split shape, the expansion restricting jig 31 can be easily attached to and detached from the braided wire 23.
  • the mounting device 30 includes a positioning jig 37 that holds the sleeve 27 and is fitted to the positioning portion 36.
  • the positioning jig 37 is configured by combining a pair of positioning members 38 having a half-split shape. After the sleeve 27 is fitted onto the braided wire 23, the work of removing the positioning jig 37 from the sleeve 27 can be easily performed.
  • the mounting device 30 includes a spacer jig 43 that holds the rear end 27R of the sleeve 27 at a position separated forward from the front end 24F of the sheath 24.
  • the inwardly locking piece 16 formed on the crimping portion 15 is placed on the rear end 27R of the sleeve 27 and the front end of the sheath 24. It is possible to place it between the 24th floor and the 24th floor.
  • the shielded conductive path A of the first embodiment includes a coaxial cable 20, a sleeve 27, and an outer conductor 13.
  • the coaxial cable 20 exposes the front end portion of the braided wire 23 in front of the sheath 24.
  • the sleeve 27 is formed into a cylindrical shape and is attached to the coaxial cable 20 so as to be fitted onto the braided wire 23.
  • the outer conductor 13 is crimped to the coaxial cable 20 while surrounding the sleeve 27.
  • a tapered guide surface 28 is formed on the inner peripheral surface of the rear end of the sleeve 27 so as to increase the inner diameter toward the rear end. Even if the front end 23F of the braided wire 23 is widened, when the sleeve 27 formed into a cylindrical shape is fitted onto the braided wire 23 from the front of the braided wire 23, the tapered guide surface 28 is formed on the braided wire 23. Since the front end 23F of the braided wire 23 is surrounded, the front end 23F of the braided wire 23 can be accommodated in the sleeve 27. Therefore, in the shielded conductive path A of the first embodiment, the sleeve 27 formed into a cylindrical shape can be fitted onto the braided wire 23.
  • the positioning portion makes the rear end of the sleeve adjacent to the front end of the expansion restricting portion, but the rear end of the sleeve is slightly relative to the front end of the expansion restricting portion in the state where the sleeve is positioned by the positioning portion. It may be possible to leave a sufficient interval.
  • the expansion control jig is configured by combining a pair of expansion control members forming a half-split shape, but the expansion control jig is formed by dividing the expansion control member into three or more. It may be a combination.
  • the sleeve is positioned on the positioning portion via the positioning jig, but the positioning portion of the expansion control jig is positioned in a state where the sleeve is in direct contact with the positioning portion without providing the positioning jig. You may.
  • the positioning jig is configured by combining a pair of positioning members forming a half shape, but the positioning jig may be a combination of three or more divided positioning members. ..
  • the mounting device is provided with a spacer jig, but the mounting device may not be provided with a spacer jig.
  • a ... Shielded conductive path 10 ... Shielded terminal 11 ... Inner conductor 12 ... Dielectric 13 ... Outer conductor 14 ... Main body 15 ... Crimping part 16 ; Locking piece 20 ... Coaxial cable 21 ... Core wire 22 ... Insulation coating 23 ... Braided wire 23F ... Front end 24 of the braided wire ... Sheath 24F ... Front end of the sheath 25 ... Folded part 26 ... Cut piece 27 ... Sleeve 27R ... Sleeve rear end 28 ... Induction surface 30 ... Mounting device 31 ... Expansion regulation jig 32 ... Expansion regulation Member 33 ... Expansion restriction recess 34 ... Positioning recess 35 ... Expansion restriction part 35F ...
  • Front end 36 of expansion restriction part 36 ... Positioning part 37 ... Positioning jig 38 ... Positioning member 39 ... Holding recess 40 ... Reduced diameter recess 41 ... Holding Part 42 ... Reduced diameter part 43 ... Spacer jig 44 ... Spacer member 45 ... Large diameter recess 46 ... Small diameter recess 47 ... Large diameter part 48 ... Small diameter part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Insulated Conductors (AREA)
  • Processing Of Terminals (AREA)
  • Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
PCT/JP2021/016698 2020-05-18 2021-04-27 同軸ケーブルに対するスリーブの取付装置、同軸ケーブルに対するスリーブの取付方法、及びシールド導電路 Ceased WO2021235190A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17/922,902 US20230170676A1 (en) 2020-05-18 2021-04-27 Mounting device for mounting sleeve on coaxial cable, mounting method for mounting sleeve on coaxial cable and shielded electrically conductive path
CN202180035084.0A CN115552742A (zh) 2020-05-18 2021-04-27 套筒向同轴线缆的安装装置、套筒向同轴线缆的安装方法以及屏蔽导电路径

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JP2020086583A JP7532886B2 (ja) 2020-05-18 2020-05-18 同軸ケーブルに対するスリーブの取付装置
JP2020-086583 2020-05-18

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WO2021235190A1 true WO2021235190A1 (ja) 2021-11-25

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US (1) US20230170676A1 (enExample)
JP (1) JP7532886B2 (enExample)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025243981A1 (ja) * 2024-05-22 2025-11-27 Ｉ－Ｐｅｘ株式会社 ケーブル体及び電気コネクタ

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7526113B2 (ja) 2021-02-15 2024-07-31 ニッタ株式会社 スリーブの位置決め取付治具、位置決め取付方法及び位置決め治具
JP7720022B2 (ja) * 2022-04-15 2025-08-07 株式会社オートネットワーク技術研究所 シールド導電路

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10144405A (ja) * 1996-11-14 1998-05-29 Sumitomo Wiring Syst Ltd シールドコネクタ
JP2002280141A (ja) * 2001-03-22 2002-09-27 Auto Network Gijutsu Kenkyusho:Kk シールドケーブルのアース端子装着装置
JP2003036898A (ja) * 2001-07-25 2003-02-07 Yazaki Corp 全周加締め接続用端子とその接続方法
JP2007294238A (ja) * 2006-04-25 2007-11-08 Yazaki Corp 端子取付方法及び端子付き同軸ケーブル
EP2978071A1 (en) * 2014-07-25 2016-01-27 Ming-Kun Li Terminal sleeve structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012050169A (ja) 2010-08-24 2012-03-08 Auto Network Gijutsu Kenkyusho:Kk シールドケーブルの端末加工方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10144405A (ja) * 1996-11-14 1998-05-29 Sumitomo Wiring Syst Ltd シールドコネクタ
JP2002280141A (ja) * 2001-03-22 2002-09-27 Auto Network Gijutsu Kenkyusho:Kk シールドケーブルのアース端子装着装置
JP2003036898A (ja) * 2001-07-25 2003-02-07 Yazaki Corp 全周加締め接続用端子とその接続方法
JP2007294238A (ja) * 2006-04-25 2007-11-08 Yazaki Corp 端子取付方法及び端子付き同軸ケーブル
EP2978071A1 (en) * 2014-07-25 2016-01-27 Ming-Kun Li Terminal sleeve structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025243981A1 (ja) * 2024-05-22 2025-11-27 Ｉ－Ｐｅｘ株式会社 ケーブル体及び電気コネクタ

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US20230170676A1 (en) 2023-06-01
JP7532886B2 (ja) 2024-08-14
CN115552742A (zh) 2022-12-30
JP2021182467A (ja) 2021-11-25

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