Punch for assembling rubber bushings

Claim 1

A PUNCH FOR USE IN ASSEMBLING A HOLLOW METAL SLEEVE WITHIN A HOLLOW RUBBER SLEEVE, COMPRISING A HOLLOW BARREL MEMBER, A PLUNGER HAVING A SHAFT PORTION AXIALLY SLIDABLY DISPOSED WITHIN, AND HAVING ONE END NORMALLY PROJECTING FROM ONE END OF, SAID HOLLOW BARREL MEMBER, A RADIALLY ENLARGED HEAD PORTION ON SAID PROJECTING SHAFT PORTION NORMALLY AXIALLY SPACED AWAY FROM SAID END OF THE BARREL MEMBER, SAID HEAD PORTION BEING OF A DIAMETER LARGER THAN SAID SHAFT PORTION AND TAPERING INWARDLY FROM SAID SHAFT PORTION TOWARD THE FRONT END THEREOF, MEANS DEFINING A LOST MOTION CONNECTION BETWEEN SAID PLUNGER AND BARREL MEMBER ESTABLISHING A LIMITING POSITION OF AXIAL DISPLACEMENT OF SAID HEAD PORTION AWAY FROM SAID END OF THE BARREL MEMBER AND A RUBBER-LIKE BAND LOOSELY MOUNTED AROUND SAID SHAFT PORTION AT A LOCATION BETWEEN SAID HEAD PORTION AND SAID BARREL MEMBER, SAID BAND BEING NORMALLY UNDISTORTED AND HAVING AN AXIAL DIMENSION NOT GREATER THAN THE DISTANCE BETWEEN SAID END OF THE BARREL MEMBER AND HEAD PORTION AT SAID LIMITING POSITION WHEREBY SAID RUBBER-LIKE BAND IS COMPRESSED AS SAID PLUNGER HEAD PORTION MOVES TOWARD SAID BARREL MEMBER END AS SAID HEAD PORTION ENGAGES AND PUSHES AGAINST SAID HOLLOW RUBBER SLEEVE THEREBY, AS SAID HOLLOW METAL SLEEVE IS FORCED INTO SAID HOLLOW RUBBER SLEEVE, CAUSING SAID RUBBER-LIKE BAND TO EXPAND RADIALLY TO A DIAMETER SUBSTANTIALLY EQUAL TO THE OUTSIDE DIAMETER OF SAID HOLLOW METAL SLEEVE.