Wire end insert tool with replaceable cutting blade
View Patent ↗A tool assembly includes an elongated metal tool body for forcibly inserting the end of an insulated wire into a telephone connector of the insulation displacing type, and having a separate and replaceable cutting blade removably attached to the tool body for cutting off the then protruding end of the insulated wire after electrically conductive engagememnt of the wire with the blades of the connector has been achieved.
1. A termination tool responsive to an impact for inserting the end of an insulated wire into an insulation displacing type electrical connector, securing the wire to the connector, and then cutting off the protruding end portion of the wire, comprising:
a cast tool body having a rearward end part for receiving an impact, a positioning and cutting end with a U-shaped opening that can partially encircle the end of a wire, and a flat side surface on the positioning and cutting end aligned perpendicular to the U-shaped opening;
a replaceable steel blade member having an essentially flat configuration with a wide rearward end portion and a narrower forward end portion, being supported upon the flat side surface of the tool body, and having a forward end with a cutting edge that is also aligned perpendicular to the U-shaped opening and extends beyond the U-shaped opening;
a screw hole formed in the side surface of the tool body at one point along its length, the blade member having an associated opening, and a screw passing through that opening to secure the blade member to the tool body; and
a locator pin formed at another point along the length of the side surface of the tool body, the blade member having another opening to receive the locator pin.
2. A termination tool as in claim 1 made by a process of forming the blade member from a material having characteristics significantly different than the elongated metal body, so that heat treating of the elongated metal body is not required and the cutting edge of the blade member can be made sharper than would have been possible if the blade were formed integral with the elongated metal body.
3. A termination tool as in claim 2 wherein the blade member is made according to Japanese Industrial Standard (JIS) with an Rc of 57 to 60.