Sumitomo Wiring Systems, Limited

Takashi Koide

Masahiko Aoyama

Masashi Saito

Masahiro Tanaka

An inner metal lock is formed in an upper surface of a connecting portion of an inner terminal by cutting the upper surface and bending a cut portion outward to project obliquely backward. A locking hole is formed in the upper wall of a dielectric element Inner surfaces of an accommodating hole of the dielectric element are formed with ribs to for partly filling a clearance between the inner surfaces and the connecting portion of the inner terminal When the inner terminal is pushed to a proper position in the accommodating hole of the dielectric element fixed in the outer terminal the inner metal lock restores to its original shape and fits into the second locking hole As a result, the inner terminal is locked in the dielectric element Simultaneously, the inner terminal is accommodated so as not to shake with the left and right side surfaces of the connecting portion pressed by first and second ribs on the left and right sides and with the upper and bottom surfaces thereof pressed by third and fourth ribs

Shielding terminal

A shielding terminal ( ) is accommodated in a cavity ( ) of a housing ( ) in a connector ( ) and is doubly locked by a lock ( ) of the housing ( ) and by a ground terminal ( ). A recess ( D) is formed in a shielding shell ( ) of the shielding terminal ( ) during the formation of a locking claw ( B) for locking a dielectric element. The recess ( D) is narrower than the lock ( ). Hence, the lock ( ) neither enters nor gets caught by the recess ( D) during insertion of the shielding terminal ( ) into the cavity ( ). Therefore, an insertion resistance of the shielding terminal ( ) can be reduced.

Shielding terminal and a connector provided therewith

A shielding terminal has a lock ( ) mounted in an area extending from an opening ( ) of a covering wall ( ) to an outer crimping portion ( ) of an outer terminal ( ), and is fixed with respect to the outer terminal ( ) by mounting plates ( ) wrapping around the outer crimping portion ( ). At this stage, a locking edge ( ) at the leading end of the lock ( ) faces a bottom end of the rear end of a connecting portion ( ) of an inner terminal ( ) so as to be engageable therewith for locking. Accordingly, even if the inner terminal ( ) tries to come out of a dielectric element ( ) upon action of a pulling force on a core ( ) of a shielded cable ( ), the rear end of the connecting portion ( ) comes into contact with the locking edge ( ) of the lock ( ) to prevent such a movement.

Shielding terminal and a mounting method therefor

A connector having an improved force for locking a shielding terminal. The connector ( ) has a housing ( ) and a ground terminal ( ) is mounted into a shielded casing (C) after a shielding terminal ( ) is partly locked in a cavity ( ) of the housing ( ) is partly locked by a locking portion ( ) and then fully locked by touching pieces ( ) of the ground terminal ( ). The connector ( ) can doubly lock the shielding terminal ( ). Hence, the locking force for locking the shielding terminal ( ) can be improved.

Connector and method for mounting a connector

A connector ( ) has an improved operability by reducing an insertion resistance of a shielding terminal. The connector ( ) has a housing ( ) and a ground terminal ( ). Contact pieces ( ) of the ground terminal ( ) are movable between a retracted position and a contact position and can be locked at the respective positions. A shielding terminal ( ) can be inserted into the housing ( ) at the retracted position where the contact pieces ( ) and the shielding terminal ( ) do not interfere with each other. Thus, an insertion resistance of the shielding terminal ( ) can be reduced. Therefore, an assembling operability of the connector ( ) can be improved.

Connector and a method for mounting a connector

A connector is provided with crimping pieces that can be crimped into connection with a wire. The first and second crimping pieces ( ) are curved during crimping such that leading edges ( A, A) are inclined inwardly to a reduced diameter, and then are crimped into connection with a wire (W). The second crimping piece ( ) is partly thinned at a position along its extending direction, to ensure that the leading edge ( A) can be bent inwardly. Thus, a crimping error resulting from such a deformation as to incline the leading edge ( A) in a direction opposite from an intended one can be prevented.

Terminal fitting

A shielding terminal includes an inner terminal to be connected with a core , an outer terminal to be connected with a braided wire , a dielectric element for insulating the two terminals and from each other, and a cover to be mounted on an upper portion of the outer terminal . After the core is fastened to an inner fastening portion of the inner terminal outside the outer terminal , the inner terminal is inserted into the dielectric element . An outer fastening portion of the outer terminal is crimped into connection with a section A of the braided wire folded back around an end of a sheath . In the center of the outer terminal , the upper surface is opened to provide an open space A. The fastened portion of the core is covered on four sides by mounting the cover to cover the open space A.

Shielding terminal and method for connecting a shielding terminal

A connector is provided to enhance a force of a retainer for locking terminal fittings. The connector has a housing formed with a retainer mount hole . A retainer is provided for insertion into the retainer mount hole . Locking projections are formed on the retainer and are engaged with terminal fittings , to prevent the terminal fittings from coming out of the housing . End locking portions are provided at the opposite ends of the retainer , and intermediate locking portions are provided between the end locking portions . The female housing is provided with end and intermediate receiving portions corresponding to the end and intermediate locking portions . Partial and full locking portions for holding the retainer in its partial and full locking positions are formed in the end and intermediate receiving portions . If the retainer has a long width, its force to lock the terminal fittings may be reduced at and near the center of the female housing . However, since the corresponding pairs of locking portions and receiving portions are provided in intermediate positions, a sufficient locking force can be ensured.

Connector

A terminal is provided for stable mounting at a predetermined position of the leading end of a coaxial cable. The terminal has rear side formed with a barrel to be crimped into connection with the coaxial cable . A cover is integrally provided before the barrel for covering an exposed section of a core of the coaxial cable . An embossed positioning portion is formed between the barrel and the cover . When the terminal is mounted on a stripped end of the cable , the front end of a folded section A contacts a locking edge C of the positioning portion , thereby restricting any further insertion of the coaxial cable . Thus, the terminal can be automatically positioned on the coaxial cable with respect to the longitudinal direction of the coaxial cable

Terminal for a cable and method for mounting a terminal

Chained terminals ( ) are formed such that a multitude of terminal fitting pieces ( ) are connected in parallel with a lateral edge of a carrier ( ) in the form of a long strip, and are wound around and dispensed from a reel ( ) with an interlayer sheet ( ) laid underneath. Each terminal fitting piece ( ) is formed with projections ( ) projecting in a direction normal to a radial direction of the reel ( ), i.e. a direction along the plane of the interlayer sheet ( ). Thus, the projections ( ) neither stick into the interlayer sheet ( ) nor are deformed by being caught in by the interlayer sheet ( ). Protecting portions ( ) are aligned with the projections ( ) but extend further from the carrier ( ) for protecting the projections ( ).

Chained terminals and method for forming such chained terminals

A shielded connector is provided with an improved shielding characteristic. The shielded connector includes male and female shielded connectors (,). A section of an inner conductor (,) of a shielded cable (,) that is not covered by an outer conductor (,) and a portion of an inner terminal (,) at and near an inner crimping portion (,) that is fastened to the leading end of the inner conductor (,) are covered on three sides by a covering portion (,). Accordingly, shielding characteristic can be improved remarkably. By connecting the male and female shielded connectors (,) with opening surfaces of the covering portions (,) thereof faced in opposite directions, radiation characteristic can be balanced. Therefore, an influence on a high-frequency signal transmitting through the inner conductor (,) can be reduced when it is passing through the shielded connectors (,), with the result that shielding characteristic can be improved.

Shielded connector, a set of shielded connectors and method for connecting a shielded connector with a shielded cable

A terminal is provided for secure electrical connection to a shielded cable. The outer conductor,of the cable,is exposed and folded onto the sheath. A folded portion,is placed on a bottom portion,of the terminal while a bottom projection,at the bottom portion 48 of an outer terminal,bites into the folded portion. A crimping piece,of the outer terminal,is brought into close contact with the outer surface of the folded portion,and an upper projection,on the crimping piece,bites into a sheath,of the folded portion,A crimping piece,is brought into close contact with the outer surface of the folded portion,and the end thereof is placed on that of the crimping piece,The outer crimping portion,squeezes the sheath,and is crimped while being held in close contact with the sheath,beneath the folded portion,and the two projections,bite into the sheath,Since the folded portion,and the outer crimping portion,are electrically connected to a sufficient degree and a sufficient fastening force can be obtained, a stable electrical connection can be established.

Terminal and crimping method

An inner terminal,is accommodated in an accommodating portion,of an outer terminal,via a dielectric element,. A core,of a shielded cable,is fastened to an inner fastening portion,of the inner terminal,outside the outer terminal,, and then the inner terminal,is inserted into the dielectric element,. A braided wire,is folded back around an end of a sheath,, and an outer fastening portion,of the outer terminal,is fastened to a folded portion,A thereof. A covering wall portion,in which only the upper surface is open is provided between the accommodating portion,and the outer fastening portion,of the outer terminal,, and the inner fastening portion,is located in the covering wall portion,. Upon the completion of crimping, the shielding terminal,is fixed by inserting the cover,into the opening,A of the covering wall portion,and thereby elastically holding the outer fastening portion,by holding pieces,of a clip portion,from opposite lateral sides. As a result, the core,has its fastened portion and a portion near it covered on four sides by conductive members.

A connector is provided with a ground terminal, and a side type retainer is mountable in the connector. A connection element receptacle,for accommodating an electrical connection element,is provided inside a connector housing,A retainer,for locking the electrical connection element,is mounted in a retainer mount hole,formed in the upper surface of the connector housing,Further, a ground terminal receptacle,for accommodating a ground terminal,is provided in the bottom wall of the connection element receptacle,In this way, since the retainer,is assembled at the side of the electrical connection element,opposite from the ground terminal,it can be constructed as a so-called side retainer.

A connector is provided to ensure the strength of a tubular engaging portion and to prevent a breakage of a locking portion during connection with a mating connector. The connector includes a terminal fitting 20 that is inserted to a proper position in a tubular engaging portion 11 of a housing. Locking portions 33 are formed on the outer surfaces of the terminal fitting 20 and are engaged with lock recesses 18 formed in the inner surfaces of the engaging portion 11. As a result the terminal fitting 20 is held so as not to come out. The locking recesses 18 are formed by recessing small portions of the inner surfaces of the engaging portion 11 sufficient to be engaged with the leading ends of the locking portions 33 and, accordingly, do not bring about a reduction in the strength of the engaging portion 11. Further, since the locking portions 33 do not project from the outer surfaces of the engaging portion 11, there is no likelihood that the locking portions 33 are broken when a mating connector is fitted on the engaging portion 11.

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Yokkaichi, Japan

Takashi Koide