JPS6268773U

JPS6268773U -

Info

Publication number: JPS6268773U
Application number: JP16060485U
Authority: JP
Priority date: 1985-10-18
Filing date: 1985-10-18
Publication date: 1987-04-30

Description

[Brief explanation of drawings]

第１図と第２図は本考案の実施例で、第１図は
ギヤシフトが高速側にある状態を示す縦断側面図
、第２図は変速部の分解斜視図、第３図は従来例
の変速装置の縦断側面図である。図において、１はギヤカバ、２はフアーストギ
ヤ、３はセカンドピニオン、４はスピンドル、５
はキー、６はトメワ、７は高速側ギヤ、８は低速
側ギヤ、９はスライダー、１０はロツクピン、１
１はスプリング、１２は固定ネジ、１３はシフト
ロツド、１４は被削材である。 Figures 1 and 2 show an embodiment of the present invention. Figure 1 is a longitudinal cross-sectional side view showing the gear shift on the high speed side, Figure 2 is an exploded perspective view of the transmission section, and Figure 3 is the conventional example. FIG. 3 is a vertical side view of the transmission. In the figure, 1 is a gear cover, 2 is a first gear, 3 is a second pinion, 4 is a spindle, and 5 is a gear cover.
is the key, 6 is the door, 7 is the high speed gear, 8 is the low speed gear, 9 is the slider, 10 is the lock pin, 1
1 is a spring, 12 is a fixing screw, 13 is a shift rod, and 14 is a workpiece.

Claims

[Scope of utility model registration request]

A power tool that transmits power from an electric motor to a tip tool through a gear mechanism, the gear mechanism including a first gear that meshes with an armature pinion;
The first gear is fixed to a second pinion having a high-speed side and a low-speed side pinion, and a high-speed side and a low-speed side gear on a spindle shaft that mesh with the both pinions, and a switching device that arbitrarily selects the high-speed side and the low-speed side. In the power tool equipped with the mechanism, the high-speed side gear and the low-speed side gear are always in mesh with each pinion, and are further rotatably disposed on the spindle shaft, and between both the high-speed side and low-speed side gear, A slider is provided that fits into the key embedded in the spindle and has lock pins protruding from both sides via a spring, and fitting holes into which the lock pins are fitted are provided on the sides of the high-speed and low-speed gears. A two-stage structure configured such that the slider is slidably moved by the movement of a shift rod that is drilled and engaged with the slider, and the lock pin and the fitting hole are engaged to appropriately select a power transmission system. Transmission mechanism.