JPH0342007U

JPH0342007U -

Info

Publication number: JPH0342007U
Application number: JP10108389U
Authority: JP
Priority date: 1989-08-31
Filing date: 1989-08-31
Publication date: 1991-04-22

Description

[Brief explanation of drawings]

第１図は第１実施例による４弁式バルブ駆動装
置を一部破断して示す側面図、第２図は第１図の
要部断面図、第３図はロツカアームシヤフト取付
け位置とロツカアームの揺動範囲との好ましい配
置関係を説明する図、第４図は第２実施例の要部
断面図、第５図〜第６図は従来のバルブ駆動装置
を説明する図、第７図は従来の４弁式バルブ駆動
装置を一部破断して示す側面図である。２……ロツカシヤフト、４……ローラ、６，３
０……アジヤストスクリユ、８……カム、１２，
１２_１，１２_２，１２_３……先端部、２０……ブ
リツジ、３８……プツシユロツド、４０_１，４０
_２，４０_３……凹部。 Fig. 1 is a partially cutaway side view of the four-valve valve drive device according to the first embodiment, Fig. 2 is a sectional view of the main part of Fig. 1, and Fig. 3 shows the mounting position of the locker arm shaft and the locker arm. Figure 4 is a sectional view of the main part of the second embodiment; Figures 5 to 6 are diagrams explaining a conventional valve driving device; Figure 7 is a diagram illustrating a conventional valve driving device. FIG. 2 is a partially cutaway side view of the four-valve valve driving device of FIG. 2...Rotsukashaft, 4...Roller, 6,3
0...Asiast Skrill, 8...Cam, 12,
12 ₁ , 12 ₂ , 12 ₃ ... tip, 20 ... bridge, 38 ... push rod, 40 ₁ , 40
₂ , 40 ₃ ... recess.

Claims

[Scope of utility model registration request]

A bridge is installed across two valves of a four-valve type valve, and a push rod is interposed between the bridge and an adjuster screw attached to a rocker arm, and a surface where this push rod and the bridge come into contact, and a push rod are provided. A four-valve type valve drive device in which the contact surfaces of the adjusting screw and the adjuster screw are each formed into a spherical tip at one end and a concave surface which receives the spherical tip at the other end.