JPS61157111U

JPS61157111U -

Info

Publication number: JPS61157111U
Application number: JP3993585U
Authority: JP
Priority date: 1985-03-22
Filing date: 1985-03-22
Publication date: 1986-09-29

Description

[Brief explanation of the drawing]

第１図は本考案に係る吸排気弁の作動停止機構
をロツク位置（作動位置）で開弁状態で示す断面
図、第２図は同ロツク位置の閉弁状態を示す側面
図、第３図は第１図に示したロツカアームを上か
ら見た図、第４図は第１図に示す装置のロツク解
除位置（不作動位置）を示す図、第５図および第
６図は本考案の第２および第３実施例をそれぞれ
示す図である。１１…ロツカアーム、１３Ａ…第１アーム、１
３Ｂ…第２アーム、１５…固定軸、１６…油通路
、１７…通路、１９…ロツカシヤフト、２０…油
ボア、２５…カム軸、２６…油穴、３１…シリン
ダ室、４５…ロツクピン、５１…油孔。 Fig. 1 is a cross-sectional view showing the intake/exhaust valve operation stop mechanism according to the present invention in the locked position (operating position) and the valve open state, Fig. 2 is a side view showing the valve in the locked position and the closed state, and Fig. 3 1 is a top view of the locker arm shown in FIG. 1, FIG. 4 is a view showing the unlocked position (inoperative position) of the device shown in FIG. 1, and FIGS. FIG. 2 is a diagram showing a second and a third embodiment, respectively. 11...Lotsuka arm, 13A...first arm, 1
3B...Second arm, 15...Fixed shaft, 16...Oil passage, 17...Passage, 19...Rock shaft, 20...Oil bore, 25...Camshaft, 26...Oil hole, 31...Cylinder chamber, 45...Lock pin, 51... oil hole.

Claims

[Scope of utility model registration request]

A two-split type rocker arm consisting of two separate arms, a first arm pivotally supported by the rocker shaft and a second arm abutted against the valve stem; The first and second arms are connected so as to be swingable about a common fixed shaft extending parallel to the rock shaft, and the two arms are prevented from relative rotation. A locking device is provided for integrally locking both arms, whereby both arms can be selectively moved between an operating position in which both arms are integrally locked and an inoperative position in which they can be bent around a fixed axis. In the mechanism for stopping the operation of intake and exhaust valves of an internal combustion engine, the locking device has a pin hole formed in the second arm and a pin hole formed in the first arm that is coaxial with the pin hole in the operating position. It has an extending cylinder bore and a piston-type lock pin that slides within the cylinder bore and can be freely engaged and detached from the pin hole, and the lock pin is activated by hydraulic pressure introduced into the cylinder bore from an oil passage formed in the first arm. It is configured to be pulled into the first arm through the pin hole to release the lock, and furthermore, the first
An operation stop mechanism for an intake/exhaust valve, characterized in that a passage is provided in the arm, communicating with the oil passage and supplying oil to the sliding contact portion of the oscillating movement between the first arm and the second arm.