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热词
    • 9. 发明授权
    • Ribbon feed tension mechanism
    • 丝带进给张力机制
    • US4661004A
    • 1987-04-28
    • US728980
    • 1985-04-30
    • Steven L. ApplegateJames A. Craft
    • Steven L. ApplegateJames A. Craft
    • B41J32/00B41J33/52B41J35/08
    • B41J33/52
    • Member (9) has a tension arm (13) over which ribbon (3) feeds. Biasing arm (17) presses member (9) toward brake surface (7), with slot (21) moved until it encounters stud (23). At low tension of ribbon (3), brake surfaces (11) and (7) press and hold ribbon (3). As feed tension increases tension arm (13) forces member (9) back until stud (23) encounters the opposite end of slot (21), after which slightly higher force further opens the brake and arm (13) continues to provide feed tension. The mechanism is small, efficient, smooth functioning, and suited to incorporation as part of a ribbon cartridge.
    • 构件(9)具有张紧臂(13),丝带(3)进给。 偏压臂(17)将构件(9)压向制动器表面(7),槽(21)移动直到遇到螺栓(23)。 在薄带(3)的低张力下,制动器表面(11)和(7)压住色带(3)。 随着进给张力增加张力臂(13),迫使构件(9)向后延伸直到螺柱(23)遇到狭槽(21)的相对端,之后稍微较高的力进一步打开制动器和臂(13)继续提供进给张力。 该机构小巧,高效,平滑的功能,并且适合作为色带盒的一部分。