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公开(公告)号：USD258882S
公开(公告)日：1981-04-14
申请号：US947941
申请日：1978-10-02
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公开(公告)号：USD279288S
公开(公告)日：1985-06-18
申请号：US450969
申请日：1982-12-20
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公开(公告)号：US4710954A
公开(公告)日：1987-12-01
申请号：US783586
申请日：1985-10-03
IPC分类号： H04M1/08
CPC分类号： H04M1/08
摘要： A line switch for a telephone set comprises a lever rockably mounted in thetand for the set and having as a rear part a plunger fin received in a slot passing through the stand to a handset cradle on its top. The lever has at its front a head carrying on its underside a pair of metal leaf springs of which front portions form spring contacts disposed over corresponding electroconductive pads on a printed wiring board mounted within the stand. The lever is biased by a torque spring to yieldably hold the upper part of the fin in the cradle. Removal and replacement of a handset from and to the cradle actuates the lever to produce engagement and disengagement, respectively, of the spring contacts with their corresponding pads. Such spring contacts and pads form, electrically speaking, a line switch adapted upon such engagement and disengagement, respectively, to produce a "short" and an "open" of terminations at the set of the tip and ring leads therefor.
摘要翻译： 用于电话机的线路开关包括可摇动地安装在用于该组件的支架中的杆，并且具有作为后部的柱塞翅片，该柱塞翅片容纳在通过支架的槽中，在顶部的手柄支架上。 杠杆在其前部具有一个承载在其下侧的头部一对金属板弹簧，其前部形成弹簧触点，弹簧触点设置在安装在支架内的印刷线路板上的相应的导电焊盘上。 杠杆由扭矩弹簧偏置，以可靠地将散热片的上部保持在支架中。 将手机从支架上取下并将其更换为启动杠杆，以分别与其相应的垫片弹簧接触件分别接合和脱开。 这种弹簧触点和焊盘在电气上形成适合于这种接合和分离的线路开关，以在尖端和环形引线的集合处产生“短路”和“开路”的端接。
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公开(公告)号：US4394545A
公开(公告)日：1983-07-19
申请号：US129243
申请日：1980-03-11
IPC分类号： H04M1/02
CPC分类号： H04M1/02
摘要： To reduce manufacturing costs of telephone instruments it is desirable to secure components to housing members and secure housing members to one another without the use of fasteners. In the past this has been accomplished by the use of flexible latch elements that are deflected from their normal position in the process of assembly, and then return to their normal position to perform their latch function when assembly is complete. The problem with this arrangement is that impact, such as occurs during shipping or when a telephone instrument is accidentally dropped, has been found to cause the flexible latch elements to deflect and release the housing members and/or components they are intended to secure.The disclosed telephone instrument solves the problem of securing the components in place by having integral flexible latch elements (115) extend alongside of a wall (140) of one housing member (100) and integral blocking elements (245) included in the mating housing member (200). These elements are arranged so that when the two housing members are joined together, the blocking elements extend between the wall and the latch elements and prevent the latch elements from deflecting while the housing members are joined.The disclosed telephone instrument solves the problem of securing the housing members together by interlocking one end and latching the other end of the housing members. The latching is achieved by having inflexible latch elements (135, 235) integral to each housing member move into interlocking engagement by means of flexing the adjacent wall (130) of one housing member (100).
摘要翻译： 为了降低电话设备的制造成本，期望将组件固定到壳体构件并且将壳体构件彼此固定而不使用紧固件。 在过去，这已经通过使用在组装过程中从其正常位置偏转的柔性闩锁元件来实现，然后当组装完成时返回到其正常位置以执行闩锁功能。 这种安排的问题是，发现冲击，例如在运输过程中发生或当电话设备意外掉落时，会导致弹性闩锁元件偏转和释放它们打算固定的外壳构件和/或组件。 所公开的电话仪器解决了通过具有一体式的弹性锁定元件（115）沿一个壳体构件（100）的壁（140）延伸并且包括在配合壳体构件（110）中的整体阻挡元件（245）而将元件固定在适当位置的问题 （200）。 这些元件被布置成使得当两个壳体构件接合在一起时，阻挡元件在壁和闩锁元件之间延伸并且在壳体构件接合时防止闩锁元件偏转。 所公开的电话装置解决了通过将一个端部互锁并锁定壳体构件的另一端来将壳体构件固定在一起的问题。 闩锁通过使通过使一个壳体构件（100）的相邻壁（130）弯曲的方式，与每个壳体构件成一体的不弯曲的闩锁元件（135,235）移动成互锁接合来实现。
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