Abstract:
A fibre optics connector (2) comprises a moulded plastic housing (4, 104) with a through bore (14, 124). The bore (14, 124) has a first bore portion (16, 124) of small cross-section, opening into a forward end (18, 120) of the housing (4, 104) and communicating with a larger cross-section bore portion (20, 126). An intermediate fibre (6, 116) is bonded into the smaller cross-section bore portion (16, 124), a length (L) of the intermediate fibre (6, 116) projecting into the larger cross-section bore portion (20, 126). The intermediate fibre (6, 116) has at its forward end a first optically polished end face (44, 202) and at its rear end a second optically polished end face (42, 200). A longitudinally split, fibre alignment sleeve (8) is expansible radially and is positioned in the larger cross-section bore portion (20, 126). The sleeve (8) receives the projecting length (L) of the intermediate fibre (6, 116) and grips it. The rear optically polished end face (42, 200) of the intermediate fibre (6, 116) is covered by a refractive index matching material (10, 206) which has been injected into the sleeve (8). Thus, the unprepared end face of the cladded core (C) of an optical cable (OC) can be inserted into the sleeve (8) so as to be in light conducting relationship with the rear end face (42, 200) of the intermediate fibre (6, 116). The housing (104) can also have a rear cavity (123), receiving a fibre retaining housing (106) which grips the fibre (OC) by way of a clip (12). The housing (10b) is spring loaded forwardly by way of a coil spring (112) urging the fibre (OC) into the intermediate fibre (116).
Abstract:
An electrical connector (2) has terminal receiving cavities (48) in which are provided terminals (4). Each terminal (4) has a mating end (10, 12) and a conductor receiving end (26) for receipt of a conductor (6) therein. The terminals have insulating cover means (8) which are positioned over the conductor receiving ends (26). The insulating cover means are secured to the terminals by securing means (22) which are integrally attached to the terminals. The configuration of the insulating cover means is such to eliminate air voids provided in the terminal receiving cavities (48) of the connector (2), thereby protecting the terminals from the corrosion which can occur due to the moisture provided in the air voids condensing when the connector is exposed to temperature fluctuation.
Abstract:
An electrical contact comprising a holding section (2) formed of opposing side plates (6) bent from a bottom plate (5), a contact section (3) extending outwardly from the holding section (2) for electrical connection with a circuit board, a wire-connection section (4) between the side plates (6) for electrical connection to an insulated electrical wire (30), projections (18) at the sides of the wire-connection section (4) disposed in projection-receiving holes (8) in the side plates (6), and the side plates (6) having thermal-insulation holes (9, 9') adjacent the projection-receiving holes (8) to dissipate heat conducted along the contact section (3) and holding section (2) when the contact section (3) is soldered to the circuit board to obviate the melting or softening of the insulation of the electrical wire (30) in the wire-connection section (4).
Abstract:
Contact pin (2) has a compliant portion (6) having two spaced-apart openings (32) therein at locations adjacent to the ends of the compliant portion (6). The compliant portion (6) is sheared along a shear line (34) extending axially between the openings (32). The shear line (34) divides the compliant portion (6) into two side-by-side beams (36, 36'). The beams (36, 36') are displaced in opposite first directions away from the axis of the pin (2). The openings (32) and the shear line (34) define ears (44, 44') on each beam (36, 36') which extend towards the other beam (36, 36'). When the compliant portion (6) is inserted into a circuit board hole (10), the ears (44, 44') are moved into overlapping relationship and the beams (36, 36') are flexed in second opposite directions which are normal to the first opposite directions. The ears (44, 44') of each beam (36, 36') function as an intermediate support for the other beam. A high degree of adaptability as regards stock thickness and dimensions of the pin (2) is achieved by virtue of the fact that the beams (36, 36') are flexed parallel to their major surfaces and are supported intermediate their ends by the ears (44, 44').
Abstract:
A boardlock (52) is adapted to secure a connector (10) to a printed circuit board (26). The body portion (54) of the boardlock (52) is disposed in a recess (34) in the connector housing (12) flange (28) in an interference fit. First (64) and second (66) pairs of legs depend from the body portion (54) and extend to respective free ends (68; 70). Each of the legs (64; 66) has a diverging section (72; 74) intermediate the body means (54) and the free ends (68; 70) and a converging section (76; 78) intermediate the diverging section (72; 74) and the free end (68, 70). The diverging (72; 74) and converging (76; 78) sections diverge and converge, respectively, with respect to the axis (58) of the boardlock (52) in the direction from the body portion (54) to the free ends (68; 70). The diverging sections (72; 74) of the first and second (64; 66) pairs of legs overlap in axial range thereby extending the thickness of the printed circuit board (26) that can be accommodated.
Abstract:
An electrical cable-making apparatus includes a cable-making area in which a shuttle mechanism (10) moves electrical wires (1) clamped therein from a first position to a second position at which the spaced wire ends are positioned between spaced parallel tapes (26). Clamping members (25c) move the tapes into engagement with the spaced wire ends and clamp the taped wire ends therebetween whereafter the shuttle mechanism (10) having been unclampled from the wires moves along the wires back to the first position. A wire-feeding mechanism (34, 38) feeds the wires (1) to a prescribed length and cutting and terminating members (61, 61a) cut the wires and terminate them in an electrical connector (2) thereby forming a cable with one end of the wires being taped and the other ends connected to a connector. A transfer mechanism (40) receives the wires (1) adjacent the taped wire ends and transfers the cable away from the cable-making area.
Abstract:
The apparatus comprises a rotary jaw assembly (10) which is movable along a first axis (Y) between two rows of connectors (C1 and C2) and along a second axis (Z) to grasp a selected connector (C1 or C2) and then to retract, after which the jaw assembly (10) is rotatable about a third axis (X) to change the endwise orientation of the connector (C1 or C2) grasped by the assembly (10). This connector (C1 or C2) is then passed by a push rod (26) to a cover separating station (4) at which the cover (CO1 or CO2) is separated from the body (CB1 or CB2) of the connector (C1 or C2). Further push rods (36 and 38) transfer the connector body and the cover to a turntable (44) to rotate them about a vertical axis, and yet further push rods (46 and 48) transfer the connector and the cover to an application station (8) at which they are applied to a cable (FFC). Each connector (C1 or C2) can be thus applied to cable (FFC) in four different orientations.
Abstract:
A tab-receptacle of known type comprises a pair of side walls (2) upstanding from a base (1) and having edge portions (3) in-turned towards the base (1) opposite rails (9) pushed up from material at the junction of the base (1) and the side walls (2) so that a mating tab (11) will be gripped between the opposed edge portions (3) and the rails (9). A latching tongue (4) has a lance (6) for latching engagement in an aperture (12) of a mating tab (11) and a release projection (5). Catch members (15, 16) are provided on ends of strap-like extensions (13, 14) of the respective side walls (2) at the front of the receptacle and include a clasp (18) and stop lugs (17) arranged for interengagement after a predetermined movement apart of the side walls (2) (necessary for tab insertion) to prevent further deflection apart and strain of the side walls (2) otherwise caused by a misaligned tab.
Abstract:
A shielded electrical connector (1) comprises an insulating housing (40) having electrical contacts (45) secured therein to which are to be electrically connected insulated electrical conductors (73) of a shielded electrical cable (7). A shielding member (20) is mounted on the housing (40) covering the electrical contacts and electrically connectable to the shield (72) of cable (7). An insulating cover (10) is mounted on the shielding member (20) and has metal latching members (3) secured in respective sides thereof and they include latching sections (31) for latching engagement with latching sections of a complementary electrical connector when the connectors are connected together. An operator engages only the insulating cover (10) when connecting the shielded connector to the complementary connector and disconnecting it therefrom so as not to transmit static electrical charges from the person to the electrical conductors and connections.
Abstract:
A tool (46) and method for removing a chip carrier socket housing (2) from terminals (4) which are received in the housing (2) and which are mounted on a substrate (8). The tool (46) comprises a yoke (48) having pulling arms (66) pivoted thereto which have free ends (78) that engage the housing (2) at the corners (36) thereof. A central axial opening (62) extends through the yoke (48) and a slide (54) is slidable in the opening (62). The slide (54) has a reaction plate (50) on its end which is shaped to engage the upper free ends (26) of the terminals (4). A locking cam (82) is provided which locks the pulling arms (66) in their engaged positions with the housing (2). An actuating means (52, 54) causes the yoke (48) and the pulling arms (66) to move upwardly (relative to the substrate (8) on which the terminals (4) are mounted) with respect to the reaction plate (50). The housing (2) is thus pulled by the arms (66) upwardly and from the terminals (4).