JPS6352902U

JPS6352902U -

Info

Publication number: JPS6352902U
Application number: JP14715186U
Authority: JP
Priority date: 1986-09-26
Filing date: 1986-09-26
Publication date: 1988-04-09

Description

[Brief explanation of the drawing]

第１〜３図は本考案の第１実施例を示す図であ
り、第１図はその断面図、第２図Ａはそのスイン
グアームの平面図、第２図Ｂは第２図ＡのＹ―Ｙ
′矢視図、第３図はそのスイングアームの正面一
部断面図、第４図は本考案の第２実施例を示すそ
のスイングアームの平面図、第５図は本考案の第
３実施例を示す図であり、第５図Ａはそのスイン
グアームの端部を示す平面図、第５図Ｂはそのエ
ンドピボツトの側面図、第６図は本考案の第４実
施例を示す図であり、第６図Ａはそのスイングア
ームの端部を示す平面図、第６図Ｂはそのエンド
ピボツトの頭部の側面図、第７〜１０図は本考案
の第５実施例を示す図であり、第７図はその要部
構成図、第８図はそのスイングアームの平面図、
第９図はそのエンドピボツトの斜視図、第１０図
はそのスイングアームの側面図、第１１図は本考
案の第６実施例を示すそのスイングアームとエン
ドピボツトの当接部の要部一部断面図、第１２〜
１６図は本考案の第７実施例を示す図であり、第
１２図はその要部構成図、第１３図はそのスイン
グアームの平面図、第１４図はそのスイングアー
ムの側面図、第１５図はその油圧リフタの分解斜
視図、第１６図はその油圧リフタの断面図、第１
７図は従来の動弁装置を示すその要部斜視図であ
る。１２ａ，１２ｂ，８１ａ，８１ｂ……吸気弁、
１３ａ，１３ｂ……排気弁、１６ｉ，５２，８３
……カムシヤフト、１７ｉ，５３，８４……カム
、１９ｉ，５８，７２……エンドピボツト、２０
ｉ，４０ｉ，５７，７１，８５……スイングアー
ム、２２ｉ……結合部材、５４……バルブ、６２
……固定ピン（結合部材）、８８……油圧リフタ
（支持部材）。 1 to 3 are views showing the first embodiment of the present invention, FIG. 1 is a sectional view thereof, FIG. 2A is a plan view of the swing arm, and FIG. 2B is a Y -Y
3 is a front partial sectional view of the swing arm, FIG. 4 is a plan view of the swing arm showing a second embodiment of the present invention, and FIG. 5 is a third embodiment of the present invention. FIG. 5A is a plan view showing the end of the swing arm, FIG. 5B is a side view of the end pivot, and FIG. 6 is a view showing a fourth embodiment of the present invention. FIG. 6A is a plan view showing the end of the swing arm, FIG. 6B is a side view of the head of the end pivot, and FIGS. 7 to 10 are views showing the fifth embodiment of the present invention. Figure 7 is a configuration diagram of its main parts, Figure 8 is a plan view of its swing arm,
Fig. 9 is a perspective view of the end pivot, Fig. 10 is a side view of the swing arm, and Fig. 11 is a partial cross-sectional view of the main part of the abutting part between the swing arm and the end pivot, showing the sixth embodiment of the present invention. , 12th ~
16 is a diagram showing a seventh embodiment of the present invention, FIG. 12 is a configuration diagram of its main parts, FIG. 13 is a plan view of its swing arm, FIG. 14 is a side view of its swing arm, and FIG. 15 is a diagram showing a seventh embodiment of the present invention. The figure is an exploded perspective view of the hydraulic lifter, Figure 16 is a sectional view of the hydraulic lifter,
FIG. 7 is a perspective view of the main parts of a conventional valve train. 12a, 12b, 81a, 81b...intake valve,
13a, 13b...Exhaust valve, 16i, 52, 83
...Camshaft, 17i, 53, 84...Cam, 19i, 58, 72...End pivot, 20
i, 40i, 57, 71, 85... swing arm, 22i... coupling member, 54... valve, 62
...Fixing pin (coupling member), 88...Hydraulic lifter (supporting member).

Claims

[Scope of Claim for Utility Model Registration] (1) An internal combustion engine having at least one intake valve and two exhaust valves for each cylinder, in which one end of a swing arm that is driven by a cam of a camshaft is detachable from a cylinder head. A pair of valves are swingably supported so as to be rotatably positioned on the head of a freely fixed support member, and extend from the swinging fulcrum side toward the valve shaft ends of the two valves of the same type. In the valve operating system for an internal combustion engine, the valve operating device has a Y-shaped swing arm that contacts the end of the valve shaft to simultaneously open and close the two valves of the same type, wherein the head of the support member and the Y-shaped swing arm 1 on the support member abutting part of
1. A valve train for an internal combustion engine, characterized in that two coupling members are press-fitted in the direction of the camshaft, and the support member and the Y-shaped swing arm are coupled to be rotatable only in the direction of rotation of the camshaft. (2) The valve operating system for an internal combustion engine according to claim 1, wherein the cam abutting follower portion of the Y-shaped swing arm is a roller. (3) The valve train for an internal combustion engine according to claim 1 or 2, wherein the head of the support member has a cylindrical shape having a central axis in the direction of the camshaft. (4) The valve train for an internal combustion engine according to claim 3, wherein a roller-like member is interposed between the cylindrical portion of the head of the support member and the coupling member.