JPS6167103U

JPS6167103U -

Info

Publication number: JPS6167103U
Application number: JP15292984U
Authority: JP
Priority date: 1984-10-09
Filing date: 1984-10-09
Publication date: 1986-05-08

Description

[Brief explanation of drawings]

添付図面は本考案の一実施例を示すもので、第
１図は本案安全装置を備えたチエンソーの正常時
を示す一部切欠要部側面図、第２図は同じく安全
装置が作動した状態を示す一部切欠要部側面図、
第３図は第１図をＦ矢の方向に見た正面図、第４
図は第３図Ａ−Ａ′断面図、第５図は第１図Ｂ−
Ｂ′拡大断面図、第６図は掛止金具の斜視図であ
る。１…チエンソー本体、２…フロントハンドル、
３…ハンドガード、３ａ…腕部、４…第１軸支ピ
ン、５…ハンドガード作動ばね、６…掛止金具、
６ａ…掛止段部、６ｂ…フツク、７…第２軸支ピ
ン、８…掛止ピン、９…掛止金具ばね、１０…ブ
レーキバンド、１０ａ…係合孔、１１…ガイドバ
ー、１２…ソーチエン、１３…スプロケツト、１
４…クラツチドラム、１５…第３軸支ピン、１６
…駆動軸、１７…フランジ、１８…含油リング、
１９…皿輪ばね、２０…含油座金、２１…皿ばね
、２２…座金、２３…締付ボルト、２４…伝動ギ
ヤー。 The attached drawings show one embodiment of the present invention. Figure 1 is a partially cutaway side view of a chain saw equipped with the safety device of the present invention in a normal state, and Figure 2 is a side view of a chain saw with the safety device activated. Partially cutaway side view showing
Figure 3 is a front view of Figure 1 viewed in the direction of arrow F;
The figure is a sectional view taken along line A-A' in Figure 3, and figure 5 is a cross-sectional view taken along line B-- in Figure 1.
B' is an enlarged sectional view, and FIG. 6 is a perspective view of the latch. 1...Chain saw body, 2...Front handle,
3...Hand guard, 3a...Arm portion, 4...First pivot pin, 5...Hand guard operating spring, 6...Latching metal fitting,
6a... Latching step portion, 6b... Hook, 7... Second pivot pin, 8... Latching pin, 9... Latching metal spring, 10... Brake band, 10a... Engagement hole, 11... Guide bar, 12... Saw chain, 13... Sprocket, 1
4...Clutch drum, 15...Third pivot pin, 16
... Drive shaft, 17 ... Flange, 18 ... Oil-impregnated ring,
19... Belleville spring, 20... Oil-impregnated washer, 21... Belleville spring, 22... Washer, 23... Tightening bolt, 24... Transmission gear.

Claims

[Scope of utility model registration request]

In a chain saw, a hand guard is provided in front of a front handle horizontally installed in front of the chain saw main body, and a hand guard is provided parallel to the front handle. A latch formed on one side of the latch fitting, which compresses and interposes a hand guard operating spring between the arm and the chain saw body, and has one end rotatably supported on the side of the arm. Hook the step part to the hook pin protruding from the main body,
Furthermore, the chain saw safety device is characterized in that the tip of the latch fitting is engaged with one end of a brake band wound around the outer periphery of a clutch drum to which a sprocket for driving the saw chain is integrally fixed.