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    • 74. 发明申请
    • IMPROVEMENTS IN MORTICE LATCHES
    • 修改条款的改进
    • WO2005106165A3
    • 2006-01-05
    • PCT/GB2005001586
    • 2005-04-25
    • MIDDLETON COLIN SIDNEY
    • MIDDLETON COLIN SIDNEY
    • E05B15/04E05B59/00E05B63/04
    • E05B63/044E05B15/04E05B59/00E05B2015/0437
    • A mortice latch has a casing (1), a latch bolt lath (34) mounted in the casing, a latch bolt head (22) mounted on the latch bolt lath (34), a follower (36) arranged to engage the latch bolt lath (34) and designed to receive the spindle of a handle or knob, a spring (43) arranged to act on the follower (36) and a forend (29). One end of the spring (43) is engageable with a retainer (44) which is arranged to extend into the casing (1) to be releasably engaged within the casing and which is accessible from outside the casing through an aperture in the front side wall (2) of the casing (1). The arrangement is such that, after removal of the forend (29), the retainer (44) can be engaged through the aperture and withdrawn from the casing through the aperture, the spring (43) being withdrawn with the retainer (44) so that the spring can be changed without opening the casing (1) or without removing the casing from a door in which the said casing has been fitted.
    • 榫眼闩具有壳体(1),安装在壳体中的闩锁板条(34),安装在闩锁板条(34)上的闩锁螺栓头(22),布置成接合闩锁螺栓 板条(34)并且设计成接收手柄或旋钮的主轴,布置成作用在从动件(36)和前端(29)上的弹簧(43)。 弹簧(43)的一端可与保持器(44)接合,保持器(44)被布置成延伸到壳体(1)中以可释放地接合在壳体内,并且可从壳体的外部通过前侧壁 (1)的外壳(2)。 这种布置使得在移除前端(29)之后,保持器(44)可以通过孔接合并通过孔从壳体中退出,弹簧(43)被保持器(44)拉出,使得 可以在不打开壳体(1)的情况下改变弹簧,或者不从已经安装所述壳体的门从壳体移除壳体。