摘要:
A selectively coated cable tie is only coated along the lateral edges of the strap of the cable tie leaving an uncoated longitudinally extending medial strip portion of the strap for engagement with a locking mechanism in the head of the tie whereby the selectively coated cable tie provides a cable tie with smooth non-abrasive lateral edges while not significantly degrading the effectiveness of the locking mechanism of the tie.
摘要:
A single cable tie loading gate assembly for an automatic cable tie installation tool includes a sliding gate disposed adjacent a cable tie ejection channel. The sliding gate is movable between a closed position sealing the cable tie ejection channel and an open position allowing insertion of a cable tie into the ejection channel for subsequent pneumatic propulsion to the cable tie application mechanisms of the tool.
摘要:
Termination tooling for use with a bench press for terminating a flat cable in an elongate connector. The tooling includes a termination die and positioning structure for holding a connector in place for termination by the die. Stop structure is disposed spaced from the termination die for engaging one end of the cable with the axial direction of the cable being generally normal to the longitudinal direction of the connector so as to locate the cable end with respect to the connector. Finally, the tooling includes slide structure for supporting the cable. The slide structure is movable transversely of the axial direction of the cable between a loading position, wherein the cable engages the stop structure, and a termination position, in which the cable is positioned for termination in the connector by the die, whereby the cable is positioned with respect to the connector without the stop structure engaging the cable during termination.
摘要:
Termination tooling adapted for use with a prime mover, such as a bench press, for terminating a flat cable in a connector of the type having an insulative base and cover with the base carrying a plurality of insulation displacement terminal elements extending toward the cover. The tooling includes a termination die and holding means for positioning the connector with respect to the termination die. The prime mover is connected to cause the die and the holding means to undergo reciprocal movement relative to one another. The tooling also includes stop means disposed adjacent one side of a connector positioned in the holding means for engaging the leading end of a flat cable. Cable movement means is provided for moving the leading end of the cable a predetermined distance away from the stop toward the connector prior to termination of the connector.
摘要:
A method of fabricating a wire harness, the invention comprises several steps. The connectors are positioned at desired locations at a first station. Then wires in lengths dictated by the dimensions of the finished harness are run between predetermined terminal element locations at the connectors. The various wires are fixed in the respective holding means associated with the predetermined terminal element locations so that prior to electrical termination of the wires, the partially completed harness can be moved to a station remote from the first station with the wires maintained relative to the entrances of their corresponding wire-receiving slots.
摘要:
An electrical connector for mechanically joining a plurality of wires to a plurality of other electrical components and for providing low resistance electrical paths between predetermined ones of the plurality of wires and preselected ones of the plurality of other electrical components. The connector includes an insulative housing having a front wall, a back wall and a plurality of spaced barrier walls extending between the front wall and back wall to define an array of cavities extending through the housing. The connector also includes a plurality of metallic terminal elements each of which has a wire terminating portion and a portion for receiving another electrical component with one terminal element preloaded into each of the housing cavities prior to wiring of the connector. The wire terminating portion has an open-ended elongate wire-receiving slot having a width less than the diameter of the conductor in the wire to be terminated in the wire terminating portion so that in response to the insertion of the wire laterally of its axis into the slot, the insulation of the wire is removed. The wire terminating portion further includes an entrance adjoining the slot and of greater width than the slot to guide the wire into the slot. The housing and/or the terminal element has holding means for mechanically holding each wire in alignment with the entrance to the slot corresponding to that wire prior to insertion of the wire into the slot whereby after positioning of the wires into the holding means and prior to insertion of the wires into the slots, the connector can be physically moved without dissociation of the wires from their corresponding slots.
摘要:
A self-locking cable tie for forming a plurality of elongate objects such as wires into a bundle. The cable tie comprises an elongate flexible strap positionable about the objects and including a plurality of spaced transversely extending abutments; and a head extending from adjacent one end of the strap having a strap entrance face, a strap exit face, and a transverse aperture extending between the faces for receiving the distal end of the strap. The cable tie further comprises non-pivotal locking means carried by the head and extending into the aperture for securely engaging a preselected one of the abutments and pusher means carried by the head and extending into the aperture. The pusher means is responsive to retrograde movement of the strap to push the abutment to be held into engagement with the locking means and the pusher means has a position wherein its spacing from the locking means is sufficient to permit strap passage therebetween whereby the strap can be threaded with relatively low force as the pusher means is not required to resist strap withdrawal forces.
摘要:
A mount for use with a cable tie having a locking head and a strap extending therefrom for holding at least one elongate object having opposed generally flat first and second sides, such as a flat cable. The mount includes a first member which either has a substantially flat surface for engaging the first side of the object or has means for providing such a surface and further has guide means for guiding the strap about a portion of the first member so that the strap extends beyond the substantially flat surface. The mount also includes a second member which has holding means for captively holding the locking head. The second member either has a substantially flat surface for engagement with the second side of the object or has means for providing such a surface and further has guide means for guiding the cable tie about a portion of the second member so that the cable tie extends beyond the last-mentioned substantially flat surface. The substantially flat surfaces are positionable facing each other and in substantial registration. After the locking head is positioned in the holding means and the strap is positioned in the respective guide means of the first and second member, respectively, the object can be inserted between the flat surfaces and the strap inserted through the locking head and tightened thereby to firmly hold the object without substantial deformation thereof.
摘要:
A layered tape having pockets therein is used as part of a communication cable to improve alien crosstalk attenuation. In one embodiment, a single layered tape has an embossed layer bonded to a matrix tape layer having non-continuous conductive traces, with the resulting layered tape reducing alien crosstalk between cables. Pockets resulting from the embossing are filled with a gas such as dry air to decrease the dielectric constant through the effective thickness of the tape. A layered tape may alternatively be provided as a separate tape from a matrix tape, such that coupling between conductive pairs of the cable and the matrix tape is reduced. Decreasing the dielectric constant of materials between adjacent cables also decreases alien crosstalk coupling between the cables.
摘要:
A cable and method of forming the cable are presented. The cable contains twisted wire pairs disposed in a cavity defined by a jacket. Each wire has a conductor and an insulator surrounding the conductor. The cable may also contain a spline that separates the twisted wire pairs. At least one of the insulators or the jacket is helically corrugated such that ridges extend radially inward or outward. The ridges of the insulators may be the same or different. The cable is extruded from an extruder. The jacket may contain corrugations after being extruded by the extruder. The cable may be passed through dies to form a helically corrugated jacket. The jacket heated by a heater prior to being passed through the dies, or may pass through the dies while still hot from the extruder.