JPS62195608U

JPS62195608U -

Info

Publication number: JPS62195608U
Application number: JP8505886U
Authority: JP
Priority date: 1986-06-03
Filing date: 1986-06-03
Publication date: 1987-12-12

Description

[Brief explanation of drawings]

第１図〜第１１図は本考案に係るバルブ駆動用
カムの一実施例を示す図であり、第１図はその分
解斜視図、第２図はその可動カムが位相差０°の
ときの要部斜視図、第３図はその要部断面図、第
４図はその可動カムが位相差０°のときの断面図
、第５図は第４図のＡ―Ａ矢視図、第６図はその
可動カムが位相α°のときの要部斜視図、第７図
はその可動カムが位相差α°のときの断面図、第
８図は第７図のＢ―Ｂ矢視図、第９図はその油圧
制御部の断面図、第１０図はその可動カムの位相
差が０°のときの作動説明図、第１１図はその可
動カムの位相差がα°のときの作動説明図、第１
２図は従来のバルブ駆動用カムを示すその断面図
である。３……駆動用カム、８……リターンスプリング
（弾性部材）、２０……固定手段、２１……係止
、被係止手段。 1 to 11 are diagrams showing an embodiment of the valve driving cam according to the present invention, FIG. 1 is an exploded perspective view thereof, and FIG. 2 is a diagram showing a state in which the movable cam has a phase difference of 0°. Fig. 3 is a sectional view of the main part, Fig. 4 is a sectional view when the movable cam has a phase difference of 0°, Fig. 5 is a view taken along the line A-A in Fig. 4, and Fig. The figure is a perspective view of the main part when the movable cam has a phase difference of α°, FIG. 7 is a sectional view when the movable cam has a phase difference of α°, FIG. 8 is a view taken along the line B-B in FIG. 7, Fig. 9 is a sectional view of the hydraulic control section, Fig. 10 is an explanatory diagram of the operation when the phase difference of the movable cam is 0°, and Fig. 11 is an explanation of the operation when the phase difference of the movable cam is α°. Figure, 1st
FIG. 2 is a sectional view showing a conventional valve driving cam. 3... Drive cam, 8... Return spring (elastic member), 20... Fixing means, 21... Locking, locked means.

Claims

[Scope of utility model registration request]

A valve driving cam that is composed of a fixed cam fixed to a camshaft and a movable cam that is in contact with the fixed cam and is rotatably provided on the same axis, and that has a variable phase angle with respect to the camshaft. A locking or locking means for changing the relative position of the cam or the camshaft against the biasing force of an elastic member using hydraulic pressure, and fixing the movable cam at a predetermined position with respect to the camshaft when the relative position changes. A valve drive cam comprising a fixing means.