| 摘要 |
A FASTENING DEVICE 10 FOR FASTENING RAPIDLY A CIRCUIT BOARD 20 TO A CASING 30 OF AN ELECTRONIC DEVICE WITHOUT USING SCREWS, INCLUDES TWO ENDS HAS A SPLIT HEAD 101, TWO NECK SECTIONS 103 SPACED FROM THE HEADS 101 EACH HAVING A SMALLER PERIMETER THAN THE HEAD 101 AND A BORE 102 LOCATED IN A MIDDLE SECTION THEREOF. ONE HEAD 101 MAY BE INSERTED INTO THE CASING 30 AND ENABLES A PIN 301 INSERTING INTO THE CENTER THEREOF TO EXPAND THE HEAD 101 OUTWARDLY SO THAT THE FASTENING DEVICE 10 MAY BE FIRMLY ENGAGED WITH THE CASING 30. ANOTHER END OF THE FASTENING DEVICE 10 MAY BE INSERTED INTO A THROUGH HOLE 201 OF A FIRST CIRCUIT BOARD 20 FOR ENGAGING WITH THE SAME AT THE NECK SECTION 103. HENCE THE FIRST CIRCUIT BOARD 20 MAY BE FIXEDLY MOUNTED ON THE CASING 30 WITHOUT USING SCREWS. THE BORE 102 IN THE MIDDLE SECTION FURTHER MAY ENGAGE WITH THE HEAD 101 OF ANOTHER FASTENING DEVICE 10 TO FASTEN A SECOND CIRCUIT BOARD 40 IN A NORMAL RELATIONSHIP WITH THE FIRST CIRCUIT BOARD 20.(FIG 1)
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