JPH046505U

JPH046505U -

Info

Publication number: JPH046505U
Application number: JP4349590U
Authority: JP
Priority date: 1990-04-25
Filing date: 1990-04-25
Publication date: 1992-01-21

Description

【図面の簡単な説明】[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図は第１７図と同様の断面図、第２図は第
１図の側方から見た図、第３図はスリーブの断面
図、第４図は第３図の右方から見た端面図、第５
〜６図は本考案の第二実施例を示しており、第５
図は軸の側面図、第６図は端面図、第７〜１０図
は本考案の第三実施例を示しており、第７図は第
１７図と同様の断面図、第８図は第７図の左側方
から見た図、第９図は有底円筒状に形成されたス
リーブの断面図、第１０図は第９図の右方から見
た端面図、第１１〜１２図は本考案の第四実施例
を示しており、第１１図は軸の側面図、第１２図
は第１１図の右方から見た図、第１３〜１４図は
本考案の第五実施例を示しており、第１３図はス
リーブの断面図、第１４図は第１３図の右方から
見た図、第１５図はエンジンの動弁機構の１例を
示す斜視図、第１６図は第１５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面図
、第１７図は第１６図図のＡ−Ａ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、
１３……スリーブ、１３……突起、１４……舌片
、１５……凹部、１６……段部、１７……折り曲
げ係止部、１８……凹部、１９……段部、２０…
…スリーブ、２０ａ……底部、２０ｂ……内向フ
ランジ状態、２１……スリーブ。 Figures 1 to 4 show the first embodiment of the present invention, where Figure 1 is a sectional view similar to Figure 17, Figure 2 is a side view of Figure 1, and Figure 3 is a cross-sectional view similar to Figure 17. A sectional view of the sleeve, Figure 4 is an end view seen from the right side of Figure 3, and Figure 5 is a cross-sectional view of the sleeve.
Figures 6 to 6 show the second embodiment of the present invention, and the fifth figure shows the second embodiment of the present invention.
6 is a side view of the shaft, FIG. 6 is an end view, FIGS. 7 to 10 show a third embodiment of the present invention, FIG. 7 is a sectional view similar to FIG. 17, and FIG. Fig. 7 is a view seen from the left side, Fig. 9 is a cross-sectional view of the sleeve formed in a cylindrical shape with a bottom, Fig. 10 is an end view seen from the right side of Fig. 9, and Figs. 11 and 12 are views of the book. 11 is a side view of the shaft, FIG. 12 is a view seen from the right side of FIG. 11, and FIGS. 13 and 14 show a fifth embodiment of the invention. 13 is a sectional view of the sleeve, FIG. 14 is a view seen from the right side of FIG. 13, FIG. 15 is a perspective view showing an example of an engine valve mechanism, and FIG. FIG. 17 is a partial longitudinal cross-sectional view of the cam follower device incorporated in the valve train shown in the figure, and FIG. 17 is a cross-sectional view taken along the line AA in FIG. 16. 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,
13... Sleeve, 13... Protrusion, 14... Tongue, 15... Recess, 16... Step, 17... Bending locking part, 18... Recess, 19... Step, 20...
...Sleeve, 20a...bottom, 20b...inward flange state, 21...sleeve.

Claims

【実用新案登録請求の範囲】 (1) エンジンのクランクシヤフトと同期して回
転するカムシヤフトに固定されたカムと、このカ
ムに対向して設けられ、このカムの動きを受ける
合成樹脂製のロツカーアームと、このロツカーア
ームに間隔を開けて形成した１対の支持壁部と、
金属製円管状で、外周面に突起を形成し、上記ロ
ツカーアームの成形時に上記一対の支持壁部に、
互いに同心となる様にしてインサートされた１対
のスリーブと、この１対のスリーブの間に掛け渡
した軸と、この軸の少なくとも一方の端面に形成
した段部と、上記スリーブの外端縁に突出形成し
た舌片をこのスリーブの内側に向けて折り曲げる
事により、その縁部を上記段部と係合させ、スリ
ーブ内側での軸の回り止めを図つた折り曲げ係止
部と、上記軸の周囲に、複数のころを介して回転
自在に支承された短円筒状のローラとから成るエ
ンジンの動弁機構用カムフオロア装置。 (2) 一方のスリーブが有底円筒状にされており
、このスリーブが、底部を外側にして、支持壁部
にインサートされている、請求項１に記載のエン
ジンの動弁機構用カムフオロア装置。[Scope of Claim for Utility Model Registration] (1) A cam fixed to a camshaft that rotates in synchronization with the engine crankshaft, and a synthetic resin Rotsuker arm that is provided opposite to this cam and receives the movement of this cam. , a pair of support walls formed at intervals on the rocker arm;
It is shaped like a metal cylinder and has a protrusion formed on its outer circumferential surface, and is attached to the pair of supporting walls when forming the rocker arm.
A pair of sleeves inserted concentrically with each other, a shaft spanned between the pair of sleeves, a step formed on at least one end surface of the shaft, and an outer edge of the sleeve. By bending the protruding tongue toward the inside of this sleeve, its edge engages with the step, thereby forming a bent locking portion that prevents the shaft from rotating inside the sleeve. A cam follower device for an engine valve mechanism, which consists of a short cylindrical roller that is rotatably supported around the circumference via a plurality of rollers. (2) The cam follower device for an engine valve train according to claim 1, wherein one of the sleeves has a cylindrical shape with a bottom, and the sleeve is inserted into the support wall portion with the bottom portion facing outward.