公开(公告)号：US20020170185A1

公开(公告)日：2002-11-21

申请号：US10147396

申请日：2002-05-15

Applicant: MAKITA CORPORATION

Inventor： Masaki Kondo ,  Ichio Sakabe ,  Shinji Hirabayashi

IPC: B25F003/00 ,  B23D049/16

CPC classification number: B25F5/021 ,  B23D49/162 ,  B23D51/00

Abstract: An electric jigsaw (1) includes a main housing (2) containing a gear housing (10), a reciprocating rod (11) vertically projecting from within the gear housing, a saw blade (13) coupled to the rod via a coupling ring (12), and a transparent synthetic resin guard (14) provided at the lower front end of the main housing and the gear housing (10). The transparent guard includes a vertical optical path therethrough and is attached to the gear housing in such a manner as to be horizontally rotatable between a protective position for covering the coupling ring and an open position for exposing the coupling ring. Additionally included in the jigsaw is an insulating cover (15) assembled to the gear housing (10) within the main housing (2) and a downward oriented light-emitting diode (19) disposed at the bottom end of the insulating cover (15) directly above the transparent guard (14) when the guard is in its protective position. The light from the LED is transmitted through the front guard along the optical path, illuminating a workpiece (W) immediately forward of the blade without significant scattering or diffusion.

Abstract translation: 电动拼图（1）包括容纳齿轮壳体（10）的主壳体（2），从齿轮壳体内垂直突出的往复杆（11），经由联接环联接到杆的锯片（13） 12），以及设置在主壳体的下前端和齿轮壳体（10）上的透明合成树脂护罩（14）。 透明防护罩包括穿过其中的垂直光路，并且以能够在用于覆盖联接环的保护位置和用于暴露联接环的打开位置之间水平地旋转的方式附接到齿轮壳体。 另外，在拼图中还包括组装到主壳体（2）内的齿轮壳体（10）的绝缘盖（15）和设置在绝缘盖（15）底端的向下定向的发光二极管（19） 当护罩处于其保护位置时，在透明防护罩（14）的正上方。 来自LED的光沿着光路传输通过前护罩，在刀片的正前方照射工件（W），而不会有明显的散射或扩散。