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1. 发明授权

US3731028A Releasable locking mechanism for pushbutton switch with pilot-lamp assembly 失效
标题翻译：具有导柱组件的按钮开关的可释放的锁定机构
公开(公告)号：US3731028A
公开(公告)日：1973-05-01
申请号：US3731028D
申请日：1971-09-26
申请人： YAMATAKE HONEYWELL CO LTD
发明人： ANDO S
IPC分类号： H01H13/02 , H01H9/16 , H01H13/14 , H01H9/02
CPC分类号： H01H9/162 , H01H13/14
摘要： A four-sided pushbutton 1 projecting from the top of a housing 4 is secured to a switch-actuating rod 3 traversing a lamp holder 7 which supports the sockets of four pilot lamps 8, this holder consisting of two superposed and fixedly interconnected plates 71, 72 rotatably bracketing a flange 91 of a guide sleeve 9 for the rod in axially fixed position with reference to the holder. Upon depression of the pushbutton, the lower end of the rod operates a switch structure b; a cross-pin 33 on the rod normally engages in a pair of diametrically opposite longitudinal slots 92 of the sleeve to entrain the latter rotatorily for detaching a pair of lugs 93 at the foot of the sleeve from respective shoulders 52 in a depending neck 5 of the housing whereby, upon sufficient withdrawal of the pushbutton from the housing to enable its rotation, the lamp holder, the sleeve and the pushbutton with its rod can be bodily extracted from the housing as the cross-pin rises to the top of the slots at the level of the flange 91 to bear from below upon the upper holder plate 71. Such rotation is prevented in a lower position of the pin 33 by a projection 72d depending from the lower holder plate 72; another projection 43, rising from the housing bottom, coacts with the depending projection 72d to insure correct reinsertion of the extracted unit into the housing. Proper relative orientation of the pushbutton and the pilot lamps is insured by an indexing spring 74 which normally fits into an elongate notch 31 on one side of the rod 3 to allow depression of the pushbutton 1 but which falls into another, lower notch 34 on the opposite side of the rod, blocking a descent thereof, if the pushbutton is rotated in the wrong sense to re-engage the lugs 93 of the sleeve with the shoulders 52.
摘要翻译：从壳体4的顶部突出的四面按钮1固定到穿过灯座7的开关致动杆3，灯座7支撑四个指示灯8的插座，该保持器由两个重叠和固定互连的板71,72组成， 72可旋转地包围导向套筒9的凸缘91，用于杆相对于支架轴向固定的位置。当按下按钮时，杆的下端操作开关结构b; 在杆上的十字销33通常与套筒的一对直径相对的纵向狭槽92啮合，以夹紧后者旋转，从而在套筒的脚处将相应的肩部52上的一对凸耳93从相应的肩部52拆下壳体，其中当按钮从壳体中足够的抽出以使其能够旋转时，当灯座，套筒和带有杆的按钮可以在交叉销上升到槽的顶部时从壳体中被身体抽出，凸缘91的水平面从下方支承在上支架板71上。这样的旋转在销33的下部位置处被从下支架板72悬垂的突起72d防止; 从壳体底部上升的另一突起43与悬垂突起72d共同作用，以确保所提取的单元正确地重新插入壳体。按钮和指示灯的正确的相对方向由分度弹簧74保证，该分度弹簧74通常装配在杆3的一侧上的细长切口31中，以允许按压按钮1，但是落在其上的另一个下凹口34 杆的相对侧，阻止其下降，如果按钮以错误的方式旋转，以使套筒的凸耳93与肩部52重新接合。

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