JPH0475109U

JPH0475109U -

Info

Publication number: JPH0475109U
Application number: JP1990117176U
Authority: JP
Priority date: 1990-11-09
Filing date: 1990-11-09
Publication date: 1992-06-30

Description

[Brief explanation of the drawing]

第１〜４図は本考案の第一実施例を示しており
、第１図は部分側面図、第２図はスリーブのみを
取り出して示す側面図、第３図は第２図の側方か
ら見た図、第４図は第１図のＡ−Ａ断面図、第５
図はスリーブの第２例を示す側面図、第６図は第
５図の側方から見た図、第７図はスリーブの第３
例を示す側面図、第８図は第７図の側方から見た
図、第９図は本考案の第二実施例を示す、第４図
と同様の断面図、第１０図は軸のみを取り出して
示す部分断面図、第１１図は本考案の第三実施例
を示す、第４図と同様の断面図、第１２図は第１
１図のＢ矢視図、第１３図は本考案の第四実施例
を示す、第４図と同様の断面図、第１４図は第１
３図のＣ矢視図、第１５図は軸のみを取り出して
示す図、第１６図は従来のエンジンの動弁機構の
１例を示す斜視図、第１７図は第１６図に示した
動弁機構に組み込んだカムフオロア装置の部分縦
断側面図、第１８図は第１７図のＤ−Ｄ断面図、
第１９図は先考案の構造を示しており、第１９図
は部分側面図、第２０図は第１例の構造を、第２
１図は第２例の構造をそれぞれ示す、第１９図の
拡大Ｅ−Ｅ断面図である。１……クランクシヤフト、２……カムシヤフト
、３……ロツカーアーム、４……吸気弁、５……
排気弁、６……カム、７……支持壁部、８……軸
、９……ころ、１０……ローラ、１１……通孔、
１２……スリーブ、１３……フランジ部、１４…
…凹溝、１５……通孔、１６……凹溝、１７……
円筒状部、１８……面取り。 Figures 1 to 4 show the first embodiment of the present invention. Figure 1 is a partial side view, Figure 2 is a side view showing only the sleeve taken out, and Figure 3 is a side view of Figure 2. The view shown in Figure 4 is a sectional view taken along line A-A in Figure 1, and Figure 5.
The figure is a side view showing the second example of the sleeve, Figure 6 is a side view of Figure 5, and Figure 7 is the third example of the sleeve.
FIG. 8 is a side view of FIG. 7, FIG. 9 is a cross-sectional view similar to FIG. 4, showing a second embodiment of the present invention, and FIG. 10 is only the shaft. FIG. 11 is a cross-sectional view similar to FIG. 4, showing a third embodiment of the present invention, and FIG.
1. FIG. 13 is a cross-sectional view similar to FIG. 4, showing the fourth embodiment of the present invention. FIG.
3, FIG. 15 is a view showing only the shaft taken out, FIG. 16 is a perspective view showing an example of a conventional engine valve mechanism, and FIG. 17 is a view of the valve mechanism shown in FIG. 16. A partial vertical sectional side view of the cam follower device incorporated in the valve mechanism, FIG. 18 is a sectional view taken along line DD in FIG. 17,
Fig. 19 shows the structure of the previous invention, Fig. 19 is a partial side view, Fig. 20 shows the structure of the first example, and Fig. 20 shows the structure of the first example.
FIG. 1 is an enlarged EE--E sectional view of FIG. 19, showing the structure of the second example. 1...Crankshaft, 2...Camshaft, 3...Rotzker arm, 4...Intake valve, 5...
Exhaust valve, 6... cam, 7... support wall, 8... shaft, 9... roller, 10... roller, 11... through hole,
12... Sleeve, 13... Flange portion, 14...
...Concave groove, 15...Through hole, 16...Concave groove, 17...
Cylindrical portion, 18... chamfer.

Claims

[Scope of utility model registration request]

A cam fixed to a camshaft that rotates in synchronization with the engine crankshaft, a synthetic resin Rotsuker arm that is provided opposite to the cam and receives the movement of the cam, and 1. A pair of supporting walls are formed into a cylindrical shape with at least a part of the outer circumferential surface being a non-cylindrical surface and an uneven portion extending in the axial direction at the middle part of the outer circumferential surface, and when the rocker arm is molded, the pair of support walls are formed into a cylinder shape. A pair of metal sleeves are inserted concentrically into the supporting wall of the housing, a shaft is fixed across the pair of sleeves, and a plurality of metal sleeves are inserted around the shaft. It consists of a short cylindrical roller that is rotatably supported via a roller.
An engine valve drive in which both ends of the shaft are fixed inside the pair of sleeves by caulking one of the outer peripheral edge of the shaft end and the opening peripheral edge of the sleeve toward the other. Cam follower device for mechanisms.