Reciprocable tool mounting module

A module for selectively shifting a tool between an operative position and an inoperative position comprising:

• a housing having an elongated opening with a partially conical portion;
• a cone clutch having a plurality of resilient fingers on one end extending from a unitary portion, said fingers having outer surfaces which are conical segments which are disposed at an angle complimentary to the conical portion of the housing and end surfaces extending radially inwardly from the outer surfaces toward a central axially extending opening;
• a pin shiftably disposed in the central opening in the cone clutch for movement between an extended position wherein the annular locking lip engages the ends of the fingers and the outer surfaces of the fingers are in face to face contact with the conical portion of the housing, and a retracted position wherein the annular locking lip is disposed in the central opening and the cone clutch is shifted axially with the outer surfaces of the fingers flexed radially outwardly;
• a retainer connected to the pin;
• a tool retained by the retainer and shifted between an extended position and a retracted position;
• biasing means for urging the cone clutch into engagement with the housing causing the cone clutch to grip the pin;
• operator means for selectively applying a force on the cone clutch in opposition to the urging of the biasing means causing the cone clutch to release the pin;
• and
• shifter means for moving the pin relative to the cone clutch.

A retraction module for a reciprocating tool comprising:

• an elongated housing having two ends, a first cylindrical bore extending inwardly from the first end of the housing, a second cylindrical bore extending inwardly from the second end of the housing and being coaxial with the first cylindrical bore, a tapered partially conical opening disposed coaxially with and extending between said first and second bores;
• a reciprocable tool having a work engaging end and a retained end;
• a tool retainer connected to the retained end of the tool;
• a first piston shiftably received in the first bore of the housing and being connected to the tool retainer;
• an end cap connected to the first end of the housing and engaging said tool at a spaced location from the first piston for guiding the movement of said tool through the first end;
• a retractable pin having a first end which engages the first piston;
• a cone clutch having a plurality of resilient fingers extending from a unitary tubular portion, the fingers having a beveled portion on their outer surface corresponding in contour to the partially conical opening, a central axially extending opening formed in the cone clutch by the inner surface of the fingers, said retractable pin being slidably received in the central axially extending opening for locking the pin in and moving the pin between an extended position in which the pin extends out of the fingers and a retracted position in which the pin does not extend out of the fingers;
• a second piston secured to the unitary tubular portion of the cone clutch and being received in the second cylindrical bore formed in the housing;
• a first biasing means connected between the retractable pin and a second piston for shifting the pin longitudinally relative to the cone clutch;
• second biasing means connected between the housing and the second piston for urging the second piston and the beveled portion of the cone clutch fingers into engagement with the conical opening in the housing;
• third biasing means operatively connected between the second piston and the housing for shifting the cone clutch fingers axially away from the conical opening in the housing, permitting the fingers to move radially outwardly from the pin thereby unlocking the pin and permitting the first biasing means to shift the pin axially within the central axially extending bore in the cone clutch.