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    • 1. 发明授权
    • Locket having wire element furnishing a hinge and catch member
    • 带有电线元件的钥匙装有一个铰链和托盘
    • US3618338A
    • 1971-11-09
    • US3618338D
    • 1970-10-19
    • BALLOU & CO B A
    • SAUER ALFRED EUGENE
    • A44C3/00A44C25/00A44C15/00
    • A44C25/004
    • A LOCKET HAVING A NOVEL HINGE CONSTRUCTION. THE LOCKET COMPRISES A FRONT CASE HAVING A PERIPHERAL FLANGE FORMED WITH A NOTCH, A FRONT CASE FIELD PIECE FITTED THEREIN, HAVING A TONGUE RECEIVED IN THE NOTCH AND A FEMALE CATCH OPENING, A BACK CASE HAVING A PERIPHERAL FLANGE FORMED WITH A NOTCH THROUGH WHICH THE TONGUE ALSO EXTENDS, A RECESS THAT CONSTITUTES A RING ANCHORAGE, A HINGE WIRE FORMED AS A SEGMENT OF A CIRCLE GREATER THAN 180* FITTED IN THE BACK CASE, WITH AN OFFSET PORTION THEREOF LOCATED WHERE THE NOTCHES MEET, AN OUTTURNED END PORTION CONSTITUTING A MALE CATCH, AND A BACK CASE FIELD PIECE PRESS FITTED IN THE BACK CASE TO SECURE THE HINGE WIRE. THE BACK PIECE HAS A NOTCH IN ALIGNMENT WITH THE NOTCH IN THE BACK CASE AND A SLOT WHICH ACCOMMODATES THE MALE CATCH. WHEN THE FRONT AND BACK CASES, WITH THE FIELD PIECES THEREIN, ARE ARREMBLED, THE TONGUE IS BENT OVER THE OFFSET PORTION OF THE HINGE WIRE. A RING HAVING OPPOSED SHOULDERS IS ANCHORED TO THE BACK CASE BY POSITIONING THE SHOULDERS BETWEEN THE PERIPHERAL FLANGE OF THE BACK CASE AND THE BACK CASE FIELD PIECE, PROJECTING THROUGH THE RECESS IN THE PERIPHERAL FLANGE. IN A MODIFICATION THE RING IS FORMED AS AN INTEGRAL PART OF THE HINGE WIRE.