| 摘要 |
AN EXPANSION MOUNTING SLEEVE 10 INCLUDES A FORWARD TAPERED CYLINDRICAL BODY FORMED BY STAMPING A MATERIAL STRIP, AND THE CYLINDRICAL BODY DEFINES AN INTERNALLY THREADED TAPERED BORE 12. A PLURALITY OF ENGAGING TEETH 16, 17, 18 HAVING DIFFERENT HEIGHTS AND SHAPES ARE FORMED TO PROJECT FROM THE CYLINDRICAL BODY. AFTER THE SLEEVE 10 HAS BEEN DRIVEN INTO OR MOUNTED IN A HOLE 51 FORMED ON A WALL 50, A READY-MADE BOLT 40 HAVING LENGTH, SIZE, AND SCREW THREADS MATCHING THE THREADED BORE 12 OF THE CYLINDRICAL BODY MAY BE SCREWED INTO THE BORE 12 AND THEREBY EXPANDS THE TAPERED CYLINDRICAL BODY OF THE SLEEVE 10, CAUSING THE ENGAGING TEETH 16, 17, 18 TO MOVE OUTWARD TO TIGHTLY ENGAGE WITH THE WALL 50 IN THE HOLE 51 AND FIRMLY HOLD THE EXPANSION MOUNTING SLEEVE 10 IN PLACE IN THE HOLE 51. A METHOD OF FORMING THE EXPANSION MOUNTING SLEEVE 10 IS ALSO PROVIDED.
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