公开(公告)号：US5084598A

公开(公告)日：1992-01-28

申请号：US549557

申请日：1990-07-09

申请人： Kunio Nagata ,  Takezo Sano ,  Saburou Morita ,  Shoji Kazusaka ,  Junzo Asa ,  Satoshi Nozoe

发明人： Kunio Nagata ,  Takezo Sano ,  Saburou Morita ,  Shoji Kazusaka ,  Junzo Asa ,  Satoshi Nozoe

IPC分类号： H01H9/04 ,  H01H9/06 ,  H01H9/52 ,  H01H9/00 ,  H01H15/00

CPC分类号： H01H9/061 ,  B25F5/00 ,  H01H9/04 ,  H01H9/52

摘要： An electric switch for a power tool, comprising: a slider slidably received in a switch casing along a longitudinal direction, a handle provided in the grip of the power tool for manually actuating the slider along the longitudinal direction; a plurality of fixed contact pieces arranged in an internal bottom surface of the switch casing and provided with contact surfaces located substantially in a same plane; and a plurality of moveable contact pieces arranged in the bottom surface of the slider and urged toward the fixed contact pieces by spring members so as to selectively contact at least some of the contact surfaces of the fixed contact pieces. The contact portions of this switch achieve various conductive states by planar arrangement and movement of the contact pieces, the component parts can be fitted into a small switch casing, particularly having a small height. Since the component parts may be assembled one over the other in sequential manner without requiring special efforts, a substantial advantage can be gained in the improvement of the efficiency of the assembling process. And, these advantages can be gained without diminishing the reliability of the various states of contact between the various contact pieces.

摘要翻译： 一种用于电动工具的电开关，包括：沿纵向可滑动地容纳在开关壳体中的滑块，设置在电动工具的把手中的手柄，用于沿纵向方向手动地驱动滑块; 多个固定接触片，其布置在所述开关壳体的内部底表面中并且设置有大致位于同一平面中的接触表面; 以及多个可动接触件，其布置在滑块的底表面中，并通过弹簧构件朝向固定接触片推动，以便选择性地接触固定接触片的至少一些接触表面。 该开关的接触部分通过平面布置和接触片的移动来实现各种导电状态，部件可以装配到小开关外壳中，特别是具有小的高度。 由于组件可以按顺序组合而不需要特别的努力，因此在提高组装过程的效率方面可以获得显着的优点。 并且，可以在不降低各种接触片之间的各种接触状态的可靠性的情况下获得这些优点。