Abstract: A lock structure comprising a male connector housing, a female connector, an elastic lock arm, a lock-retaining portion and a correction portion. The female connector housing is to be fitted with the male connector housing in an opposing manner. The elastic lock arm is provided on one of the male and female connector housings and has a lock projection. The lock-retaining portion is provided on the one of the male and female connector housings that is not provided with the elastic lock arm. The lock projection of the lock arm is engageable with the lock-retaining portion. The correction portion corrects elastic deformation of the lock arm when the male and female connector housings are fitted together.

Abstract: An electrical connector with a coupling state indicating mechanism is provided, which includes: a first connector having a semicylindrical projection; a second connector having a slider receiving portion and to be coupled with the first connector, the slider receiving portion being provided with a guide groove to guide the projection and with an abutting plane; and a slider to be slidably received in the slider receiving portion for indicating a coupling state of the first and second connectors, the slider having an engaging projection to prevent coming-off thereof, an oblique cam groove to receive the projection therein so as to slide the slider toward the abutting plane, a releasing groove continuing from the cam groove to release the projection from the cam groove when the first and second connectors have completely coupled so as to return the slider to an initial position, and a spring portion to abut on the abutting plane and to be compressively transformed to bring about a force to return the slider, wh

Abstract: The connector includes a connector housing having a resilient locking arm for locking a terminal and a holder having an extended piece inserted into an insertion space of the connector housing. In an incomplete insertion state of the terminal, the locking arm deflects so that a free end surface of the locking arm protrudes from an inner wall of the insertion space to cause the extended piece to abut against the free end surface of the locking arm. Meanwhile, in a complete insertion state of the terminal, the extended piece is inserted into the insertion space to lie over the locking arm. The extended piece is longitudinally inclined toward the locking arm so that the extended piece can slidingly contact the inner wall of the insertion space.

Abstract: An electric connector with a terminal locking member is provided, which includes: a housing main body with a terminal accommodating chamber; a front holder having a terminal accommodating portion and to be fitted to the housing main body; a terminal locking member having a terminal through hole provided with an engaging portion and to be arranged between the housing main body and the front holder freely movably; and an electric terminal to be accommodated in the housing main body through the terminal accommodating chamber, the terminal through hole, and the terminal accommodating portion, wherein the electric terminal accommodated in the housing main body is locked by the engaging portion. The electric connector may further includes a resilient locking piece provided on the housing main body so that the electric terminal accommodated in the housing main body is locked by the resilient locking piece in addition to the lock by means of the engaging portion of the terminal locking member.

Abstract: In a mold for pressing an electric-wire clamping portion of a terminal, a lower side-wall mold part and an upper side-wall mold part are provided for pressing side walls connected to the electric-wire clamping portion. A pressure face substantially continuously connected to a pressure face of an upper conductor mold part is provided on one end side of the upper side-wall mold part. A taper face is provided on the other end side of the upper side-wall mold part so as to be enlarged toward the other end. Accordingly, side walls pressed between the lower side-wall mold part and the upper side-wall mold part are deformed so that the quantity of deformation at one end is near the quantity of compressive deformation of the electric-wire clamping portion and so that the quantity of deformation is reduced gradually toward the other end side. Thus, local stress concentration is not caused in the side walls so that cracks are prevented from occurring in the side walls.

Abstract: Beveled, chamfered portions are formed at one or both of front and rear ends of each of projected portions including a box-like electrical contact portion and wire-clamping portions, or all of edges of a terminal. A slanting wall, slanting in a direction of withdrawal of the waterproof rubber plug, is provided at a rear side of the projected portion. Annular protective portions are provided adjacent to front and rear ends of the conductor-clamping portion, respectively, the annular protective portions being larger in outer diameter than raised front and rear ends of the conductor-clamping portion after compressive clamping of the conductor-clamping portion. A generally semi-annular projection for preventing an inverted insertion of the terminal is provided at a bottom plate portion of the terminal, and an arch-like curved portion, extending in a direction of the width of the terminal, is formed at an apex portion of the projection.

Abstract: A double retaining connector having a terminal retaining member (4) movably mounted in an intermediate portion of a connector housing (1) having terminal receiving chambers (17). Cam pins (5) are formed on opposite side surfaces of the terminal retaining member to drive the terminal retaining member between a stand-by position, in which terminal receiving portions in the terminal retaining member communicate respectively with the terminal receiving chambers, and a retaining position, in which terminal retaining portions (6) engage the terminals. A detection member (8) having cam bars (9) with slide surfaces (cam groove 10) for engagement with the associated cam pin, is removably attached to a rear end of the housing. A short-distance movement of the terminal retaining member (4) from the stand-by position into the retaining position is effected through a long-distance movement of the detection member (8) in a direction parallel to the axes of the terminals.

Abstract: A connector including a plurality of terminals, a housing having a plurality of cavities, and a front holder to be inserted into the cavities. Each of the terminals has a resilient portion which forces the terminal up in a direction perpendicular to a direction of insertion of the terminal when the terminal is inserted into a proper position in the cavity. A limitation portion is provided in each of the cavities, and the limitation portion forces the terminal down in a direction perpendicular to the direction of insertion of the terminal until the terminal is inserted into the proper position in the cavity. The front holder has a plurality of push arms arranged like teeth of a comb, and when each of the terminals is inserted into the proper position in the associated cavity, each of the push arms is inserted into a space formed by the terminal, forced up by the resilient portion, and a cavity wall.

Abstract: A connector comprising a connector housing including a terminal accommodating chamber configured to receive a terminal fitting and a cantilevered flexible retaining arm extending from an inner wall surface of the terminal accommodating chamber, the flexible retaining arm having a first recessed surface, and a terminal retainer including an insertion portion configured to receive a mating terminal for the terminal fitting and a spacer, the spacer having a second recessed surface. When the terminal retainer is connected to the connector housing and the terminal fitting is completely inserted into the terminal accommodating chamber, the first and second recessed surfaces are in a confronting relationship to allow for a play of the terminal fitting.

Abstract: In a terminal receiving chamber made of a connector housing of synthetic resin, the metal terminal is retained by the flexible holding strip disposed in the connector housing, the retaining portion of the metal terminal abutting against a retaining projection of the flexible holding strip includes an end part of a laminated plate portion formed by folding a rolling thin plate portion.

Abstract: A waterproof plug (30) fitted to an outer circumference of a wire (9) and inserted into a terminal insertion cavity (10a) of a connector housing (10) for sealing a space between the wire and the connector housing comprises an elastic cylindrical body (2) formed with: an inner corrugated sealing portion (3) for sealing the outer circumference of the wire; an outer corrugated sealing portion (4) for sealing the inner circumference of the terminal insertion cavity (10a) of the connector housing (10); and, in particular, a press portion (31) expanding radially outward at a free end of the elastic cylindrical body, the press portion being sufficiently deformable radially inward gradually against the wire, when the elastic cylindrical body (2) is being inserted into the terminal insertion cavity of the connector housing.

Abstract: A terminal structure includes a male terminal which is formed by folding a piece of plate material and a female terminal into which the male terminal is inserted for an electrical connection therebetween. The male terminal has a rod-shaped electrical connection part formed on an end thereof. The electrical connection part is provided on an upper surface thereof with raised portions which are brought into contact with the female terminal when the male terminal is inserted thereinto. The female terminal is formed by folding a piece of plate material. The female terminal is provided inside thereof with a plane upper surface for depressing the male terminal and is also provided with a resilient tongue piece for supporting the male terminal from below. Due to provision of the raised portions on the male terminal, the contacting area between the male terminal and the plane upper surface of the female terminal is reduced to obtain a terminal structure requiring low insertion force.

Abstract: A waterproof tap for a connector is provided comprising a housing part, a waterproof tap, and a waterproof tap cover. The housing part includes a plurality of wire insertion holes and a waterproof tap storage portion arranged in a manner to surround the wire insertion holes. The waterproof tap is a flat plate member formed of elastic material and includes in its flat surface portion a plurality of wire insertion holes respectively corresponding to the wire insertion holes and a plurality of projecting portions. The waterproof tap cover includes a plurality of wire insertion holes respectively corresponding to the wire insertion holes and a plurality of projecting portion insertion holes through which the projecting portions of the waterproof tap can be inserted respectively, in such a manner that they respectively extend through the waterproof tap cover.

Abstract: In a terminal receiving chamber made of a connector housing of synthetic resin, a metal terminal is retained by a flexible holding strip disposed in the connector housing, a retaining portion of the metal terminal abutting against a retaining projection of the flexible holding strip includes an end part of a laminated plate portion formed by folding a rolling thin plate portion.

Abstract: A connector comprising a first connector housing having a resilient locking arm and side walls provided on both sides of the locking arm to protect the locking arm, and a second connector housing having a locking protrusion to engage the resilient locking arm for locking. The first connector housing has a mechanism for preventing an excessive shift of the locking arm when the resilient locking arm is unlocked from the locking protrusion. The mechanism includes an engagement member arranged on the locking arm which projects beyond the transverse sides of the locking arm and receipt members which extends from the respective side walls beneath the ends of the engagement member so as to hit thereon when said locking arm is pushed down. Thus, a mechanism for preventing an application of excessive stress to the locking arm can be provided without increasing the size of the connector housings.

Abstract: A waterproof connector includes a connector housing having a plurality of terminal receiving chambers, a waterproof plug, and a waterproof plug holder. The waterproof plug and the waterproof plug holder have a plurality of insertion holes corresponding respectively to the terminal receiving chambers. The waterproof plug and the waterproof plug holder are connected to the connector housing in a two-stage manner, that is, in a completely-retained condition and a provisionally-retained condition. In the provisionally-retained condition, an annular sealing rib, formed on an inner surface of each of the insertion holes, is compressed between the connector housing and the waterproof plug holder to expand the insertion hole.

Abstract: A terminal fabricated through the steps of forming a thin plate portion X with a part of the periphery left aside at the leading end of a female electric contact portion, providing a turnback thin plate X2 which is folded inside via an arcuate folded portion X1 in the thin plate portion X, and positioning the arcuate folded portion of a turnback contact piece in the part thereof.

Abstract: An electrical connector in which a front piece fixing terminals in the preliminarily locked stage does not unintentionally move to the fully locked stage.

Abstract: In a connector, a terminal lock member has openings in correspondence to terminal accommodating chambers formed in a connector housing. Of the vertical plates forming the terminal lock member, two are suitably selected. Each of the vertical plates thus selected has a first locking protrusion on one end face thereof, and a flexible arm formed by cutting a slit therein in such a manner that the flexible arm has a second locking protrusion on the other end fact. On the other hand, the connector housing has first and second engaging portions and in correspondence to the first and second locking protrusions. When the terminal lock member is inserted into the housing through the cavity to a temporary locking position where the openings align with the terminal accommodating chambers, the first locking protrusions are engaged with the first engaging portions, so that the terminal lock member is temporarily locked there.

Abstract: An electrical connector assembly of the type including a first connector having a nut therein and a second connector having a bolt adapted to be threaded to the first connector to secure the first and second connectors together. One connector 8 is provided in the form of an outer housing having accommodation chambers 3 and 4 and an engaging portion 26 to receive a mating connector. The chambers 3 and 4 have first openings 18 through which inner housings 5 and 6 having horizontal support portions 30 are inserted. The accommodation chambers 3 and 4 are provided with flanges 19 at second openings 17 which stop or limit insertion of the inner housings. A spacer 7 is insertable in the outer housing to support the inner housings by engagement against the horizontal support of the inner housings.