JPS6336648U

JPS6336648U -

Info

Publication number: JPS6336648U
Application number: JP13100686U
Authority: JP
Priority date: 1986-08-26
Filing date: 1986-08-26
Publication date: 1988-03-09

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化した一実施例を示す
要部の分解斜視図、第２図は同じく要部の拡大断
面図、第３図は弁タイミング調整機構の一部破断
正面図、第４図はこの考案の別例を示す分割カバ
ーの分割面の接合構造の別例を示す断面図、第５
図は同じく分割カバーの連結部を示す部分正面図
、第６図は第５図のＡ―Ａ線断面図、第７図は従
来例を示す断面図である。シリンダブロツク…１、タイミングベルトケー
ス…２、クランクシヤフト…４、クランクプーリ
…５、タイミングプーリ…６〜８，１０，１１、
タイミングベルト…１２、タイミングベルトカバ
ー…１５、取付用ボス…１５ａ、挿通孔…１５ｂ
、取付ボルト…１７、上部分割カバー…１８、下
部分割カバー…１９、シール部材…２０、連結用
ボス…２１、連結用ボルト…２２、カバー連結用
ボス…２３。 Fig. 1 is an exploded perspective view of the main parts showing an embodiment embodying this invention, Fig. 2 is an enlarged sectional view of the main parts, and Fig. 3 is a partially cutaway front view of the valve timing adjustment mechanism. Figure 4 is a sectional view showing another example of the joining structure of the divided surfaces of the divided cover, showing another example of this invention;
6 is a sectional view taken along line AA in FIG. 5, and FIG. 7 is a sectional view showing a conventional example. Cylinder block...1, Timing belt case...2, Crankshaft...4, Crank pulley...5, Timing pulley...6 to 8, 10, 11,
Timing belt...12, timing belt cover...15, mounting boss...15a, insertion hole...15b
, mounting bolts...17, upper split cover...18, lower split cover...19, seal member...20, connecting boss...21, connecting bolt...22, cover connecting boss...23.

Claims

[Claims for Utility Model Registration] 1. Has an insertion hole through which the crankshaft is inserted;
A cover that covers a valve timing adjustment mechanism such as a timing belt, a timing chain, or a timing gear mounted on the front surface of the cylinder block is divided so as to be separable along a dividing plane passing approximately through the center of the insertion hole. A cover for a valve timing adjustment device in an engine in which each divided cover is connected to each other by a connecting member with a vibration-proof and dust-proof seal member interposed between the divided surfaces of the divided cover. 2. The valve timing adjustment device for an engine according to claim 1, wherein the cover is divided into an upper divided cover and a lower divided cover along a horizontal dividing plane passing through the center of the insertion hole of the crankshaft. cover. 3. The utility model according to claim 1 or 2, wherein rubber seal members each having a concave cross section are fitted to the opposing dividing surfaces of the divided cover, and these seal members are butted against each other. A cover for the valve timing adjustment device in the engine. 4 A connecting boss having a female screw as a connecting member is fixed to the upper divided cover, and a connecting bolt as a connecting member screwed into the female screw of the connecting boss is inserted into the lower divided cover. A cover for a valve timing adjustment device in an engine according to claim 2 or 3, to which a connecting boss having a hole is fixed. 5. Each dividing surface of each divided cover and the mounting boss for attaching each divided cover to the cylinder block are overlapped with each other, and the insertion hole formed in the mounting boss functions as a connecting member and the divided cover is attached to the cylinder block. A cover for a valve timing adjustment device in an engine according to claim 1 or 2, into which a connecting bolt having a dual function is inserted. 6. The valve timing adjustment device for an engine according to claim 5, wherein a metal cylindrical collar having a function of connecting the divided covers to each other is press-fitted into the insertion hole of the mounting boss. cover.