JPS6167102U

JPS6167102U -

Info

Publication number: JPS6167102U
Application number: JP15292884U
Authority: JP
Priority date: 1984-10-09
Filing date: 1984-10-09
Publication date: 1986-05-08
Also published as: JPH0219215Y2

Description

[Brief explanation of the drawing]

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ーンソーの正
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図は第２図Ｃ−Ｃ′拡
大断面図、第７図は噛合クラツチの詳細図、第８
図は第７図をＧ矢の方向に見た噛合クラツチの正
面図、第９図は掛止金具の斜視図、第１０図は伝
導遮断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…係合部、７…第２軸支ピ
ン、８…掛止ピン、９…第１ねじりコイルばね、
１０…伝導遮断金具、１０ａ…突起、１０ｂ…凹
陥部、１０ｃ…クラツチ作動部、１１…第３軸支
ピン、１２…ブレーキシユー、１３…第２ねじり
コイルばね、１４…スプロケツト、１４ａ…噛合
歯、１４ｂ…円筒部、１５…駆動軸、１６…ガイ
ドバー、１７…ソーチエン、１８…噛合クラツチ
、１８ａ…噛合歯、１８ｂ…鍔、１８ｃ…斜面、
１９…クラツチばね、２０…伝動ギヤー、２１…
カバー、２２…ガイドバー中心。 The attached drawings show one embodiment of the present invention. Figure 1 is a partially cutaway side view of the main part of the chainsaw equipped with the present invention and a safety device when it is in normal condition, and Figure 2 is a state in which the safety device is activated. Fig. 3 is a front view of Fig. 1 viewed in the direction of arrow F;
Figure 4 is a sectional view taken along line A-A' in Figure 3, Figure 5 is an enlarged sectional view taken along line B-B' in Figure 1, Figure 6 is an enlarged sectional view taken along line C-C' in Figure 2, and Figure 7 is an enlarged sectional view taken along line C-C' in Figure 2. Detailed drawing of, No. 8
The drawings are a front view of the dog clutch seen in the direction of arrow G in FIG. 7, FIG. 9 is a perspective view of the latching fitting, and FIG. 10 is a perspective view of the conduction blocking fitting. 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... Engaging portion, 7... Second pivot pin, 8... Latching pin, 9... First torsion coil spring,
DESCRIPTION OF SYMBOLS 10... Conduction blocking metal fitting, 10a... Protrusion, 10b... Recessed part, 10c... Clutch operation part, 11... Third pivot pin, 12... Brake shoe, 13... Second torsion coil spring, 14... Sprocket, 14a... Engagement Teeth, 14b... Cylindrical portion, 15... Drive shaft, 16... Guide bar, 17... Saw chain, 18... Engagement clutch, 18a... Engagement teeth, 18b... Tsuba, 18c... Slope,
19...Clutch spring, 20...Transmission gear, 21...
Cover, 22... Center on the guide bar.

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 body, and a hand guard is provided parallel to the front handle. A latching step is formed on one side of the latching metal 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. The part is hooked onto a latch pin protruding from the main body, and the upper end of the conduction cut-off fitting, whose intermediate point is rotatably supported on the chain saw body, is engaged with the tip of the latch fitting, and this conduction The lower end of the shutoff fitting is engaged with the sprocket that drives the saw chain to form a clutch actuating part that opens and closes a dog clutch that transmits the rotation of the drive shaft to the sprocket, and a brake is installed around the outer periphery of the cylindrical part of the sprocket near this clutch actuating part. A chain saw safety device that features a brake shoe that can be applied.