公开(公告)号：US4342931A

公开(公告)日：1982-08-03

申请号：US229441

申请日：1981-01-29

申请人： Horst Grossmann ,  Alfred Bausch

发明人： Horst Grossmann ,  Alfred Bausch

IPC分类号： H01H9/06 ,  H01H13/08 ,  H02K23/18 ,  B23B45/02 ,  H02K7/14

CPC分类号： H01H13/08 ,  H01H9/063 ,  H02K23/18

摘要： A portable electric tool with a housing having a motor compartment and a pistol grip handle is provided with a trigger-switch, incorporating a motor reversing switch, mounted in the handle. An elongated lever is pivoted intermediate its length and contained within the housing. The rear end of the lever is connected to the reversing switch for actuation thereof. The forward end of the lever has a downwardly projecting protrusion which engages in a slide member which is slidable along an arcuate slot in the lower wall of the motor compartment for pivoting the lever. Intermediate the forward end of the lever and the pivotal axis of the lever is a downwardly projecting pin which coacts with a partition and two grooves in the upper part of the trigger-switch to block the movement of the trigger until the lever has been pivoted to actuate the reversing switch, and also to prevent pivoting of the lever while the trigger is in an inward position energizing the tool. A brush-board assembly is rotatably mounted in bearings extending inwardly from the wall of the motor compartment. The lever has adjacent its forward end an upwardly extending forked arm which engages a stud on the brush-board assembly to effect rotation thereof when the lever is pivoted.

摘要翻译： 具有壳体的便携式电动工具具有电动机室和手枪把手，其具有安装在手柄中的电动机反向开关的触发开关。 细长的杆在其长度之间枢转并包含在壳体内。 杠杆的后端连接到换向开关以用于其操作。 杠杆的前端具有向下突出的突出物，其接合在滑动构件中，该滑动构件可沿电动机室的下壁中的弓形槽滑动以枢转杠杆。 中间的杠杆的前端和杠杆的枢转轴线是向下突出的销，其与触发器开关的上部中的分隔件和两个凹槽共同作用以阻止触发器的运动，直到杠杆已经枢转到 致动反转开关，并且还能够在触发器处于向内的位置激励工具时防止杠杆的枢转。 电刷板组件可旋转地安装在从电动机室的壁向内延伸的轴承中。 杠杆相邻其前端具有向上延伸的叉形臂，其接合电刷板组件上的螺柱，以在杠杆枢转时实现其旋转。

公开(公告)号：US4588910A

公开(公告)日：1986-05-13

申请号：US666433

申请日：1984-10-30

申请人： Alfred Bausch

发明人： Alfred Bausch

IPC分类号： H01H9/06 ,  H01H9/26 ,  H02K7/14

CPC分类号： H01H9/063

摘要： In a portable electric tool, a switch arrangement comprises a trigger on/off switch having a depressable trigger and a reversing switch having an actuating lever. An interlocking arrangement, operative between the lever and the trigger, prevents actuation of the reversing switch when the trigger is depressed. The lever comprises a pivoted bell crank, one of the legs of which carries part of the interlocking arrangement, and the other leg of which extends transversely to the trigger and engages with a slide manually slidable in an orifice in a side wall of the tool's housing to effect pivoting of the lever.

摘要翻译： 在便携式电动工具中，开关装置包括具有可按下触发器的触发器开/关开关和具有致动杆的反转开关。 在杠杆和触发器之间操作的互锁装置在触发器被按下时防止反转开关的致动。 所述杠杆包括枢转的钟形曲柄，其中一个腿部承载所述互锁装置的一部分，并且其另一个腿横向于所述触发器延伸并与可手动地滑动在所述工具壳体的侧壁中的孔口中的滑块接合 以实现杠杆的枢转。