JPS6322306U

JPS6322306U -

Info

Publication number: JPS6322306U
Application number: JP11581186U
Authority: JP
Priority date: 1986-07-28
Filing date: 1986-07-28
Publication date: 1988-02-15

Description

[Brief explanation of drawings]

第１図はこの考案の第１実施例を示す断面図、
第２図は第１図の―線矢視図、第３図は第１
図のＡ矢視図、第４図はこの考案の第２実施例を
示す断面図、第５図の―線矢視図、第６図は
第２実施例の他例を示す断面図、第７図は第６図
の―線断面図、第８図はリフタベアリングの
他例を示す断面図、第９図はリフタベアリングの
更に異つた例を示すバルブリフターの正面図、第
１０図はこの考案の第３実施例を示す要部正面図
、第１１図は第３実施例の要部平面図、第１２図
は第１１図の―線断面図、第１３図はロ
ータの他例を示す断面図、第１４図はローラの形
状変更に伴う動弁系の最高回転数などの特性を示
す説明図、第１５図は従来の内燃機関の動弁装置
を示す断面図である。１１…シリンダヘツド、１２…吸・排気バルブ
、１４…駆動カム、１４ａ…外周面、１５…バル
ブリフター（伝達部材）、２３，３３，５３…ロ
ーラ、２４，３５，５６…ローラベアリング（ベ
アリング）、２６，３６，５７…コロ部材（回転
体）、５１…ロツカアーム（伝達部材）。 FIG. 1 is a sectional view showing the first embodiment of this invention;
Figure 2 is a view from the - line arrow in Figure 1, Figure 3 is a view of Figure 1.
4 is a sectional view showing the second embodiment of the invention, FIG. 5 is a sectional view taken along the - line in FIG. Figure 7 is a cross-sectional view taken along the line - - in Figure 6, Figure 8 is a cross-sectional view showing another example of the lifter bearing, Figure 9 is a front view of a valve lifter showing a still different example of the lifter bearing, and Figure 10 is a cross-sectional view showing another example of the lifter bearing. FIG. 11 is a plan view of the main parts of the third embodiment, FIG. 12 is a sectional view taken along the line -- in FIG. 11, and FIG. 13 shows another example of the rotor. A cross-sectional view, FIG. 14 is an explanatory view showing characteristics such as the maximum rotation speed of the valve train due to a change in the shape of the roller, and FIG. 15 is a cross-sectional view showing a conventional valve train for an internal combustion engine. 11... Cylinder head, 12... Intake/exhaust valve, 14... Drive cam, 14a... Outer circumferential surface, 15... Valve lifter (transmission member), 23, 33, 53... Roller, 24, 35, 56... Roller bearing (bearing) , 26, 36, 57... Roller member (rotating body), 51... Rocker arm (transmission member).

Claims

[Scope of utility model registration request]

A valve train comprising a transmission member that contacts the outer peripheral surface of a drive cam pivotally supported on a cylinder head and transmits the driving force to the intake and exhaust valves, the portion of the transmission member that contacts the drive cam. 1. A valve train for an internal combustion engine, characterized in that a roller is disposed in the shaft, and the roller is supported by a bearing having a plurality of rotating bodies.