Tap chuck with overload release

Abstract

Abstract A BODY ADAPTED TO BE HELD AND SUPPORTED AT ONE END BY A ROTARY DRIVE MEMBER FOR ROTATION OF THE BODY ABOUT AN AXIS CONCENTRIC WITH THE AXIS OF ROTATION OF THE ROTARY DRIVE MEMBER, THE OTHER END OF THE BODY HAVING A BLIND CYLINDRICAL ENDWISE OUTWARDLY OPENING COUNTERBORE FORMED THEREIN TERMINATING AT ITS INNER END IN A NONCIRCULAR BORE CONCENTRIC WITH THE CENTER AXIS OF THE COUNTERBORE. THE COUNTERBORE AND BORE OF THE BODY ARE ADAPTED TO RECEIVE THE CYLINDRICAL SHANK PORTION AND NONCIRCULAR TERMINAL END, RESPECTIVELY, OF A CONCENTIONAL TAP AND THE COUNTERBORE LOOSELY RECEIVES THE SHANK PORTION OF THE TAP AND INCLUDES AXIALLY SPACED RADIALLY INWARDLY PROJECTING SEALING AND CENTERING RESILIENT RINGS ENGAGEABLE WITH THE SHANK PORTION OF AN ASSOCIATED TAP. FURTHER, THE BODY INCLUDES A VENT PASSAGE COMMUNICATING THE EXTERIOR OF THE BODY WITH THE BORE AND COUNTERBORE INWARDLY OF THE INNERMOST SEALING AND CENTERING RING MEANS AND THE INNER END OF THE BORE HAS A RESILIENT BODY SEATED THEREIN FOR ENGAGEMENT BY THE TERMINAL END OF AN ASSOCIATED TAP, THE VENT MEANS INCLUDING ONE-WAY CHECK VALVE MEANS FOR PREVENTING THE MOVEMENT OF AIR THERETHROUGH INTO SAID BORE AND COUNTERBORE.

Inventors

• 👤 Floyd F Hundley

Bibliographic Details