JPS634313U

JPS634313U -

Info

Publication number: JPS634313U
Application number: JP9970786U
Authority: JP
Priority date: 1986-06-27
Filing date: 1986-06-27
Publication date: 1988-01-12

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す側面図、第２
図は第１図の装置において弁開閉タイミングを変
更した状態を示す側面図、第３図は第１図の―
線に沿う断面図、第４図は第１図の―線に
沿う断面図、第５図は上記実施例における弁リフ
ト線図である。１０…動弁カム、１２…プツシユロツド、１４
…第１スイングアーム、１８…ローラ、２０…ア
ーム支持軸、２２…受面、２４…ローラ。 Figure 1 is a side view showing one embodiment of the present invention;
The figure is a side view showing the state in which the valve opening/closing timing has been changed in the device shown in Fig. 1, and Fig. 3 is a side view of the device shown in Fig. 1.
FIG. 4 is a sectional view taken along the line --- in FIG. 1, and FIG. 5 is a valve lift diagram in the above embodiment. 10...Valve train cam, 12...Push rod, 14
...first swing arm, 18...roller, 20...arm support shaft, 22...receiving surface, 24...roller.

Claims

[Scope of utility model registration request]

A valve drive cam that is driven in conjunction with the engine's crankshaft, a push rod that opens and closes the intake valve and/or exhaust valve of the engine in response to the valve drive cam, and one end of each of which is connected to the valve drive cam. and a first and second swing arm each having a roller interposed between the push rod and in contact with the cam surface of the synchronized valve cam, and the other end of the first swing arm being rotated around a fixed axis. The first pivot shaft and the second
an arm support shaft having a second shaft that pivotally supports the other end of the swing arm around an axis eccentric to the fixed axis; and an actuator that rotates the arm support shaft at a desired angle around the fixed axis. ,
a receiving surface on the first swing arm formed of a cylindrical surface formed concentrically with respect to the valve operating cam, and a roller of the second swing arm is provided between the outer peripheral surface of the valve operating cam and the receiving surface. A valve operating device for an engine, characterized in that it is configured to be sandwiched between the two.