Abstract: To provide a female terminal used in an electric circuit, as well as a method of producing such a terminal, a resilient contact piece, mounted within a receptive portion for receiving a male terminal, is positively retained, thereby providing the female terminal with a high reliability. In the female terminal, a resilient contact piece is mounted within a receptive portion formed by bending an electrically-conductive metal sheet. A retaining projection and a retaining hole are provided at each of side walls of the receptive portion. With this construction, retaining ends of the resilient contact piece are engaged respectively in the retaining holes, and even if the side walls are curved by pressing forces applied during a bending operation, the retaining projections positively retain the retaining ends of the resilient contact piece.

Abstract: To provide a double-retaining connector in which terminals can be inserted smoothly, thereby enhancing an operation efficiency and eliminating an obstacle to the achievement of an automation production. In the double-retaining connector, a cavity is formed in a connector housing, and a spacer is provided so as to be inserted into the cavity in a two-stage manner, that is, in a provisionally-retained condition and a completely-retained condition, and the spacer has openings which are aligned respectively with terminal receiving chambers in the provisionally-retained condition of the spacer so as to allow terminals to pass through the openings, respectively. Each of the terminal receiving chambers is divided by the cavity into a front receiving chamber and a rear receiving chamber in such a manner that the cavity is interposed between the front and rear receiving chambers.

Abstract: A female terminal has an electrical contact portion of a cross-sectionally square, tubular configuration, and one wall of this electrical contact portion serves as a retaining wall. A retaining hole is formed through the retaining wall generally centrally of the width thereof, and a notch of a rectangular shape is formed in a central portion of this retaining wall at a front end thereof. Slanting piece portions are formed at the front end of the female terminal, and are disposed respectively on opposite sides of the notch, the slanting piece portions being curved inwardly relative to the cross-sectionally square, tubular portion. When the female terminal is inserted into a terminal receiving chamber in a housing, the slanting piece portions, provided respectively on the opposite side of the notch, elastically deforms an elastic retaining lance provided in the housing, and when the retaining lance becomes fitted in the retaining hole, the female terminal is retained in a predetermined position in the housing.

Abstract: A lock detecting structure of connector comprises: a male connector housing (100) formed with a deformable lock arm (105) having a lock projection (112), and with two slider stoppers (150); a female connector housing (200) mated with the male connector housing (100) and formed with a lock claw (210) engaged with the lock projection of the male connector housing, and a slider release projection (206); and a slider (300) slidable inserted into the male connector housing (100) and stopped at a temporary engage position due to engagement of the slider with the lock projection (112) and the two slider stoppers (150) of the male connector housing.

Abstract: A connector for preventing a front end portion of a connection terminal, inserted into a terminal insertion hole, from falling into an erroneous insertion prevention groove. The groove for receiving the erroneous insertion prevention projection formed on the connection terminal is formed at each terminal insertion hole formed in a connector housing for receiving the connection terminal. The groove is formed at a position offset from a front end portion of the connection terminal, or the groove is smaller in width than this front end portion.

Abstract: A connector having an engagement detecting device, comprises: a first connector housing for housing a plurality of first connector terminals; a second connector housing for housing a plurality of second connector terminals mated with the first connector terminals, and engaged with the first connector housing; a slider inserted into the first connector housing in two stages of a half engagement position and a full engagement position; and a short-circuit spring disposed within the first connector housing, for shorting electrically two adjacent mated connector terminals when the slider is inserted into the first connector housing to the half engagement position, but disconnecting electrically the same two adjacent mated connector terminals when the second connector housing is engaged with the first connector housing and thereafter the slider is further inserted into the first connector housing to the full engagement position.

Abstract: In a double-lock type connector, terminals are primarily locked when inserted into terminal accommodating chambers in a connector housing, and the top wall of a spacer is depressed so that the latter is locked to the connector housing, thereby to secondarily lock the terminals. In the double-lock type connector, the spacer has a pair of elastically deformable flexible wall which are confronted with each other with a predetermined space between them and have first engaging parts on their inner surfaces which are confronted with each others, and the connector housing has a protruded portion which is slidably engaged with the flexible walls and has second engaging parts which are engageable with the first engaging part.

Abstract: A double-locking connector including a front holder for double locking terminals within a connector housing where the terminals can be removed from the housing without disengaging the front holder from the housing. The double-locking connector includes a connector housing including terminal accommodating chambers which have stoppers against which metal terminals abut when they are inserted into the terminal accommodating chambers from the rear, and flexible locking pieces adapted to lock the metal terminals in the terminal accommodating chambers, respectively. The connector also includes a front holder which is engageable with the connector housing from the front. The front holder has flexible locking pieces which are respectively engageable with the metal terminals. Each of the flexible locking pieces has temporary locking protrusions and final locking protrusions which are engaged with locking portions forming the front end of the respective terminal accommodating chamber.

Abstract: A double-lock connector includes a connector housing having terminal receiving chambers, metal terminals for being inserted respectively into the terminal receiving chambers, and a terminal retainer connectable to a rear end portion of the connector housing in a two-stage manner, that is, in a provisionally-connected condition and a completely-connected condition, wherein even when the terminal retainer in the provisionally-connected condition, the metal terminal can be smoothly inserted into the connector housing. The double-lock connector of the present invention includes a connector housing and a terminal retainer for being inserted into the connector housing. The connector housing has a plurality of terminal receiving chambers which are separated from one another by a horizontal partition wall and a vertical partition wall. An elastic retaining piece is provided within each of the terminal receiving chambers.

Abstract: An electrical terminal in which a flexible engagement arm of the connector housing is prevented from being deflecting into a concave portion to insure complete insertion of the terminal into the connector housing. The terminal (20) includes an engagement portion with which a forward end (12a) of a flexible engagement arm (12) extending into a terminal reception hole engages when the terminal is inserted into the terminal reception hole, a guide surface (2c) which is formed in front of the engagement concave portion in the insertion direction so that the forward end of the flexible engagement arm (12) comes into sliding contact against the guide surface at the time of insertion, and a concave portion (26) which is formed in the guide surface (2c). The width (b) of the concave portion (26) in the direction perpendicular to the insertion direction is established so as to be smaller than that the width (a) of the forward end (12a) of the flexible engagement arm (12).

Abstract: A double-lock connector includes a connector housing having terminal receiving chambers, metal terminals for being inserted respectively into the terminal receiving chambers, and a terminal retainer connectable to a rear end portion of the connector housing in a two-stage manner, that is, in a provisionally-connected condition and a completely-connected condition, wherein even when the terminal retainer in the provisionally-connected condition, the metal terminal can be smoothly inserted into the connector housing. The double-lock connector of the present invention includes a connector housing and a terminal retainer for being inserted into the connector housing. The connector housing has a plurality of terminal receiving chambers which are separated from one another by a horizontal partition wall and a vertical partition wall. An elastic retaining piece is provided within each of the terminal receiving chambers.

Abstract: To provide a female terminal in which the strength of an electrical contact portion of a tubular shape having a rectangular cross-section is enhanced, thereby preventing the terminal from being deformed during the manufacture of the terminal. In the female terminal, ears of a contact spring piece, provided within the electrical contact portion of a tubular shape having a rectangular cross-section, are engaged respectively in window holes formed respectively in side walls of the electrical contact portion. Elongate reinforcement projections or reinforcement grooves subjected to work hardening are provided at the side walls of the electrical contact portion, and extend in a direction of the height of the side walls, the projections or the grooves being provided on opposite sides of each of the window holes, respectively.

Abstract: In a weak mating force female terminal formed with a base plate portion; a pair of elastic curled portions extending from both side ends of the base plate portion so as to be folded over an inner surface of the base plate portion; and a pair of electric contact portions each extending from a middle end of the elastic curled portion so as to be bent outwardly along the inner surface of the base plate portion at an inner end of the elastic curled portion, in particular each of the elastic curled portions is formed with a primary inclined guide portion extending upwardly and outwardly toward a male terminal insertion opening at an outer end of the elastic curled portion; each of the electric contact portions is formed with a secondary inclined guide portion extending upwardly so as to intersect the primary inclined guide portion of the elastic curled portion at an outer end of the electric contact portion; and a pair of thirdly inclined guide portions each of which is disposed between a base of said primary incl

Abstract: A connector 1 is so formed that a terminal 3 inserted into a connector housing 2 is held within the connector housing by being latched by a holding projection arranged on a front end portion of a housing lance 6 and that flexion of the housing lance is regulated by a strip 12 for preventing a terminal from coming out, such strip being inserted from the front end side of the housing lance into a lance flexion gap. A stepped portion 10 having a holding surface 10a is formed on a front end 8 of the housing lance. The holding surface 10a faces the rear side of the housing lance. The connector housing has a projecting wall 11 on the inner surface thereof, the projecting wall 11 having a confronting holding surface 11a. The confronting holding surface 11a is arranged at a position substantially confronting the holding surface 10a and can abut against the holding surface.

Abstract: Disclosed is a connector for use in connecting a wire harness mainly for automobiles, and the object thereof is to provide a connector with improved locking stability and excellent operability and reliability. In the connector in which a male connector and a female connector are mutually held by a locking arm while inserting a casing body of the female connector into an annular space formed by arranging an outer casing in the male connector, the locking arm includes an arm body and a pushing section. The arm body extends frontward from a rising base portion continuously formed on the outer periphery of the male connector, and the pushing section extends rearward. The front end of the arm body is coupled integrally to the outer casing through a flexible coupling portion.

Abstract: Disclosure is an electrical connector comprising an opening of each terminal receiving chamber which is formed by cutting out an upper wall of a connector housing, and a rear holder including a movable arm portion having a plurality of terminal engagement portions formed thereon corresponding to the openings which is integrated with the connector housing via hinge bands. The rear holder is connected to the connector housing by way of two stages comprising a provisionally connected state and a normally connected state. While the provisionally connected state is shifted to the normally connected state, fitting guide projections formed on the movable arm portion are brought in the connector housing along fitting guide grooves formed in the connector housing in the forward/rearward direction so that the movable arm portion is displaced in the connector housing, causing the terminal engagement portions to enter the locus of displacement of terminals.

Abstract: In a weak mating force female terminal forced with a base plate portion; a pair of elastic curled portions extending from both side ends of the base plate portion so as to be folded over an inner surface of the base plate portion; and a pair of electric contact portions each extending from a middle end of the elastic curled portion so as to bent outwardly along the inner surface of the base plate portion at an inner end of the elastic curled portion, in particular each of the elastic curled portions is formed with a primary inclinded guide portion extending upwardly and outwardly toward a male terminal insertion opening at an outer end of the elastic curled portion; and each of the electric contact portions is formed with a secondary inclined guide portion extending upwardly so as to intersect the primary inclined guide portion of the elastic curled portion at an outer end of the electric contact portion.

Abstract: The connector consists of a connector housing with terminal accommodating chambers formed therein and a rear holder integrally joined to the housing by hinge straps. The housing has in an outer peripheral wall thereof openings extending to the terminal accommodating chambers, and the rear holder includes terminal locking projections insertable into the terminal accommodating chambers through the openings. The rear holder is fittable on the housing in two steps of a preliminarily engaged state and a fully engaged state. In the preliminarily engaged state, the terminal locking projections are located out of movement paths of the terminal lugs in the terminal accommodating chambers and in the fully engaged state, the terminal locking projections are located in the movement paths to prevent the terminal lugs from slipping off from the rear of the terminal accommodating chambers. The above structure leads to prevention of damages to the hinge straps during transportion and the like.

Abstract: An electrical socket contact forms an electrical contact portion in a compact size to which a mating contact is inserted and connected. A concave portion is formed opposite to a resilient tongue in the transverse direction of a side end of the short rectangularly tubular electrical contact portion provided the resilient tongue for electrical contact within the electrical contact portion. A folded portion extending from a side free end of the electrical contact portion is also provided which engages the concave portion.

Abstract: This invention is to provide a connector for use in connection of a wire harness and the like, a structure of a connector housing and a terminal locking member to be coupled thereto which can prevent the after-removal of a terminal to be inserted into a terminal accommodating chamber provided in the connector housing. According to the present invention, in the inner surface of the side wall of each terminal accommodating chamber provided in a connector housing, there is formed a guide groove which is used to guide the- two outsides of a pair of flexible locking pieces, respectively provided in a terminal locking member.