JPS6367602U

JPS6367602U -

Info

Publication number: JPS6367602U
Application number: JP16165886U
Authority: JP
Priority date: 1986-10-22
Filing date: 1986-10-22
Publication date: 1988-05-07

Description

[Brief explanation of the drawing]

第１図は、本考案の内燃機関の動弁装置の一実
施例の要部縦断面図であり、第２図は、第１図の
バルブステム先端部の分解斜視図であり、第３図
は、本考案の内燃機関の動弁装置の他の実施例の
要部縦断面図であり、第４図は、第３図のバルブ
ステム先端部とロツク部材の分解斜視図であり、
第５図は、従来の内燃機関の動弁装置の要部縦断
面図であり、第６図は、第５図のバルブステム先
端部の分解斜視図であり、第７図は、従来の内燃
機関の動弁装置の他の一例の縦断面図である。１：カム軸、２，３：カム体、４，５：ロツカ
ーアーム、８：シリンダヘツド、９，１０：バル
ブステム、１９：細径部、３０，３１，４０：ロ
ツク部材、３２，４３，４４：溝、３３，４５，
４６：段部、３４，３５：板ばね、３６：孔。 1 is a vertical sectional view of a main part of an embodiment of a valve train for an internal combustion engine according to the present invention, FIG. 2 is an exploded perspective view of the tip of the valve stem shown in FIG. 1, and FIG. 4 is a vertical cross-sectional view of a main part of another embodiment of the valve train for an internal combustion engine of the present invention, and FIG. 4 is an exploded perspective view of the valve stem tip and lock member of FIG. 3;
FIG. 5 is a vertical cross-sectional view of a main part of a conventional valve operating system for an internal combustion engine, FIG. 6 is an exploded perspective view of the tip of the valve stem in FIG. 5, and FIG. FIG. 3 is a longitudinal cross-sectional view of another example of a valve train for an engine. 1: Cam shaft, 2, 3: Cam body, 4, 5: Rocker arm, 8: Cylinder head, 9, 10: Valve stem, 19: Small diameter part, 30, 31, 40: Lock member, 32, 43, 44 : Groove, 33, 45,
46: Step part, 34, 35: Leaf spring, 36: Hole.

Claims

[Scope of utility model registration request]

The valve stem protruding from the cylinder head is elastically biased in the protruding direction to close the intake and exhaust valves, and the intake and exhaust valves are elastically biased by a cam body installed on a camshaft that rotates in conjunction with the crankshaft. In a valve train for an internal combustion engine that opens by pressing against the valve stem, a small diameter portion is provided at the tip of the valve stem, and a truncated cone whose outer periphery widens in the protruding direction is provided with an axial groove that does not reach the end face in the protruding direction. A locking member, which is formed from an end surface opposite to that of the valve stem and has a stepped portion that fits into the narrow diameter portion in this groove, is attached to the tip of the valve stem from the side perpendicular to the axis, and the outer periphery of the locking member is A leaf spring having a hole into which the valve stem is fitted is compressed between the lock member and the cylinder head to elastically urge the valve stem in the protruding direction, and the cam body is attached to the end face of the lock member in the protruding direction. Alternatively, a valve operating device for an internal combustion engine, characterized in that one end of a rocker arm that is swung by the cam body is brought into contact with the end.