JPS6412714U

JPS6412714U -

Info

Publication number: JPS6412714U
Application number: JP10675887U
Authority: JP
Priority date: 1987-07-10
Filing date: 1987-07-10
Publication date: 1989-01-23

Description

[Brief explanation of drawings]

第１図は本考案になる電気ハンマドリルの“回
転十打撃”・“回転のみ”の切換レバーの一実施
例を示す縦断面図である。第２図は第１図の切換
レバー部を上部から見た平面図である。１は切換
レバー、２はピース、３はレバーピン、４はネジ
、５はクラツチ、６はスプリング、７は駆動軸、
８はベベルギヤ、９はフアーストギヤ、１０はＡ
ｒピニオン、１１はクランクシヤフト、１２はコ
ンロツド、１３はピストン、１４は打撃子、１５
はフアイナルギヤ、１６は嵌合キー、１７はスプ
ライン、１８は切換レバーの割りである。 FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the "rotation ten stroke"/"rotation only" switching lever of the electric hammer drill according to the present invention. FIG. 2 is a plan view of the switching lever section of FIG. 1 viewed from above. 1 is a switching lever, 2 is a piece, 3 is a lever pin, 4 is a screw, 5 is a clutch, 6 is a spring, 7 is a drive shaft,
8 is bevel gear, 9 is first gear, 10 is A
r pinion, 11 is the crankshaft, 12 is the connecting rod, 13 is the piston, 14 is the striker, 15
16 is a final gear, 16 is a fitting key, 17 is a spline, and 18 is a switching lever split.

Claims

[Scope of utility model registration request]

The rotation of the motor is transmitted to the piston reciprocating drive unit via a drive shaft, and the gear is rotatably engaged with the drive shaft and is movable in the axial direction and constantly engaged with the drive shaft, which meshes with the piston reciprocating drive unit. A switching lever for an electric hammer drill, which has a clutch, and the clutch is selectively engaged with the gear by a switching lever connected to the outside of the housing, and is capable of switching between "rotating ten-stroke" and "rotating only" modes, The rotating shaft of the lever has a cylindrical shape with an internally tapered surface, and has a flange formed at its tip that is larger than the hole diameter of the housing insertion portion and has a plurality of splits in the circumferential direction, and a groove provided on the outer periphery of the clutch. A use mode switching lever for an electric hammer drill, characterized in that a truncated conical piece into which a pin connected to the shaft is eccentrically inserted is tightened from the outside of the housing to the internal tapered surface of the lever rotation shaft with a screw from inside the housing.