Abstract: An electrical connector includes a first connector having a connector plate and a plurality of electric contacts thereon, and a second connector having a plurality of electric contact elements provided on conductors arranged on a board. The board is formed with slits around the conductors to support the conductors elastically by parts of said board surrounded by the slits. The first and second connectors are brought into detachable abutment against each other to electrically connect to electric contacts and the electric contact elements of the first and second connectors. The electric contact elements of the second connector each are provided with at least one ridge, preferably plural ridges facing to the electric contact of the first connector. The ridges preferably extend in parallel with the direction of sliding movement of the electric contacts caused by the elastic support of the conductors.

Abstract: A cable connector includes a cylindrical shell, a contact holder in the form of an inner bottom plate, and a plurality of contacts supported in the contact holder. The contact holder consists of a front holder and a rear holder which are formed with a plurality of through-holes communicating and aligned with each other for embracing the contacts inserted in the through-hole. With this arrangement, in assembling the cable connector, the contacts can be rapidly supported in the contact holder in a simple manner.

Abstract: A C-shaped compliant contact is composed of a connection portion to be connected to an electric cable or the like, a press-fitting portion to be press-fitted in a through-hole of the printed circuit board, and a contact portion to contact a contact of a mating connector. The press-fitting portion has an inner periphery forming a U-shaped groove in section and an outer periphery forming at least one arc portion. The circle inscribing the inner periphery of the U-shaped groove is in an eccentric relation to the arc portion of the outer periphery. The thickness of the arc portion in cross-section progressively decreasing on proceeding toward the open end of the U-shaped groove to make longer the arc portion contacting the through-hole of the printed circuit board.

Abstract: An electrical connector includes a first connector having a plurality of electric contacts and a second connector having a plurality of electric contact elements which are to be contacted with the electric contacts of the first connector when the first and second connectors are connected. A board of the second connector which supports its electric contact elements is formed with slits closely surrounding the respective electric contact elements. Preferably, the board consists of a first board formed with the slits described above and a second board formed with an opening having an area corresponding to the whole area of the first board provided with the electric contact elements.

Abstract: An electrical connector includes a pin connector and a receptacle connector. The pin connector includes a housing and pin contacts fixed to the housing. The receptacle connector includes contact assemblies each having an insulator and receptacle contacts fixed to the insulator; a connecting fixture for holding the contact assemblies; a block into which the contact assemblies are inserted, and first and second shield plates mounted on the block. The first shield plate has a substantially L-shaped cross-section and includes a required number of first anchoring pieces extending from its one free end and projections at tip ends of terminals on the other free end. The second shield plate includes a required number of second anchoring pieces extending from its one free end and anchoring portions to engage the terminals of the first shield plate.

Abstract: A socket contact includes at its one end a connection portion to be connected to a board, at its center a fixing portion to be fixed to an insulator and at the other end two contact pieces having contact portions, respectively, for receiving therebetween a mating contact of a mating connector. The contact pieces are provided with recesses on the side of the fixing portion, respectively. A tongue having a width substantially equal to that of the fixing portion is provided. The tongue extends from the fixing portion toward the contact portions and is connected through a shank to the fixing portion. The tongue serves to prevent the socket contact from tilting in the insulator due to clearance therebetween so that the stable contact of the socket contact with the mating contact can be obtained and any damage of the socket contact can be prevented.

Abstract: A socket contact includes a connection portion, a fixing portion, contact portions and connecting portions for connecting the contact portions to the fixing portion. The center axis of the contact portions are shifted from the fixing portion by bending the connecting portions in their planes. In producing the socket contact, a blank material is punched to form a flat socket contact whose two contact pieces arranged in parallel with each other are then bent inwardly to form a U-shaped form. Thereafter, connecting portions of the two contact pieces are bent in the planes of the connecting portions. This socket contact fulfills the requirement with respect to the miniaturization of connectors with very narrow pitches. There is no longer any risk of the distal end of a mating contact contacting the bottom surface of the fixing portion of the socket contact, so that the assembling of the connector becomes easy and the stable contact between the socket and mating contacts can be obtained.

Abstract: A mount of an electrical connector serves to firmly mount the connector on an electrical appliance. One connector body of the electrical connector is to be fixed to a circuit board of the electrical appliance and has a housing as its outer casing whose mating connector socket is positioned in and spaced the connector opening formed in a panel plate of the electrical appliance. The mount is constructed as a clamp holder made of a resin including a fitting portion to be fitted on the outer circumference of the housing of the connector body fixed to the circuit board. The fitting portion of the clamp holder is also to be fixed to the panel plate in the state of the fitting portion being fitted on the outer circumference of the housing of the connector body so that the clamp holder made of the resin, the housing of the connector body and the panel plate are integrally fixed to one another.

Abstract: An electrical connector includes a connector body to be mounted on a circuit board of an electrical appliance by means of protruding terminal legs of contacts incorporated in the connector body and by means of fixing legs of a shell as a worked body of a metallic plate forming an outer casing of the connector body. A mating connector socket of the shell is positioned so as to open outwardly of the electrical appliance. The shell has an auxiliary leg to be fixed to the circuit board. The auxiliary leg is formed by extension pieces extending from part of the shell on the side of the mating connector socket with respect to the fixing legs of the shell. The auxiliary leg serves to mount the electrical connector on the circuit board with great stability which is maintained for a long time.

Abstract: An electrical connector includes a plug connector and a receptacle connector to be fitted with each other. The plug connector includes a number of metal contact layers alternately formed on both sides of a flexible insulating plate, and a plug housing of an insulator for holding and fixing the insulating plate. Each of the metal contact layers has a contact portion and a tail portion, the former being thinner than the latter for maintaining the flexibility and electric conductivity of the former and maintaining the mechanical strength of the latter. The receptacle connector includes a receptacle housing of an insulator having a fitting groove into which the metal contact layers together with the insulating plate are inserted, and receptacle contacts made of worked elastic metal pieces mounted alternately on both sides of the fitting groove correspondingly to the metal contact layers of the plug connector.

Abstract: An electronic part, particularly a microstructure contact having an overall length of the order of 5 mm for an electrical connector or the like is provided with a nickel oxide layer portion having a nickel oxide layer of the order of 50 to 5000 .ANG. in thickness formed by anode oxidizing process using a solution mainly consisting of an alkaline solution. The nickel oxide layer portion is located between a terminal portion of the electronic part to be soldered as in a surface mounting process and a contact portion continuous to and extending from the terminal portion. The nickel oxide layer has a width of the order of 0.2 to 1 mm in the longitudinal direction of the contact and has a performance preventing the flowing of molten solder, thereby effectively preventing the flowing and wicking due to wetting of solder of the solder-plated portion toward the other portions as in the surface mounting process.

Abstract: A connection portion of a contact for use in an electrical connector or the like. The connection portion is in the form of a substantially U-shaped groove, to which is connected an exposed conductor of an electric wire. The connection portion includes on both sides bending pieces forming the walls of the U-shaped groove and asymmetrically arranged. With this construction, a relatively deep and wide groove of the connection portion is obtained even if the contact itself is small.

Abstract: An electrical connector to be connected to a cable comprises a housing having a contact receiving portion therein, plural sets of contact pairs arranged in a row in the contact receiving portion of the housing, and a shield plate provided between at least two adjacent contact pairs. The shield plate serves to prevent occurrence of cross talk as much as possible.

Abstract: A press-in contact includes a connection portion to be connected to a mating connector, a press-fitting portion to be fixed in a cylindrical through-hole of a printed circuit board by press-fitting, and a contact portion for introducing the press-in contact to the printed circuit board. The press-in contact further includes a positioning portion. The positioning portion has two plate-shaped pieces each having a surface to be urged by a jig for press-fitting operation and a connection part for connecting the plate-shaped pieces and the connection portion. The connection portion is formed in a substantially J-shape by bending, and center axes of the connection portion and the positioning portion are shifted from each other. As an alternative, the plate-shaped pieces are formed in a C-shape in cross-section, and center axes of the connection portion and the plate-shaped pieces of the positioning portion are shifted from each other.

Abstract: An interface connector is disclosed which is inexpensive to manufacture and easy to assemble and able to maintain a sufficient strength of hooks when being engaged with a mating connector. An insulator of the connector covered with a shell includes flanges. Each of the flanges is provided with an engaging aperture having a size allowing a hook to be inserted thereinto in the surface of the flange on the fitting side with a mating connector and a further engaging aperture having a size allowing an earth plate to be inserted thereinto in the end surface of the flange. The two engaging apertures are connected each other in the flange. The hook is provided with anchoring portions engaging the earth plate. The earth plate is also provided on its inner end with engaging portions engaging the hook. The hook and the earth plate are connected to each other in the two engaging apertures.

Abstract: A press-in contact has a press-fitting portion which is press-fitted in a cylindrical through-hole of a printed circuit board, thereby fixing the press-in contact to the circuit board. The cross-section of the press-fitting portion of the press-in contact includes a U-shaped inner edge and an outer periphery having two arc parts and a straight part therebetween. The circular part of the U-shaped inner edge at its bottom and the two arc parts of the outer periphery are in eccentric relation of shifted centers. The thickness of the arc parts is progressively thinner toward the open ends of the U-shaped inner edge, and a circumferential length of the arc parts of the outer periphery contacting the through-hole of the printed circuit board is as long as possible. With the press-in contact thus constructed, no whitening occurs in the proximity of the through-hole of the printed circuit board even if the holding force for the contact is more than 5 kg.

Abstract: An electrical connector includes a plurality of contacts, an insulator for receiving the contacts, and guides provided at both ends of the insulator's lengthwise direction. The connector includes push bars inserted in the guides of the insulator, respectively. Each of the push bars has at its one end an anchor portion for engaging a circuit board or a mating connector, an engaging portion at the other end, and a spring piece between the anchor and engaging portions. The connector further includes cams disposed in mounting portions provided at bottoms of the guides at both the ends of the insulator, respectively. Each of the cams has an anchor portion at its one end engageable the engaging portion of the push bar and has a support consisting of pivot pins on the side of the other end for pivotal movement of the cam. The engaging portion of each the push bar is connected to the anchor portion of one of the cams.

Abstract: An electrical connector having a locking member which includes at one end an anchoring part shaped for hooking a mating connector, an engagement part to be secured to one of projections provided on both sides of a shell enclosing a main connector body, and at the other end a knob portion having a leaf spring. The engagement part is positioned between the anchoring part and the knob portion. The engagement part has a protrusion near to the center of the width of one end adjacent the knob portion, and two plate pieces on both the sides of the protrusion. Each of the plate pieces has a free end in the form of a resilient cantilever directing toward the protrusion. The spacing between the free ends of the two plate pieces is less than the width of the projection of the shell.