JPH0290302U

JPH0290302U -

Info

Publication number: JPH0290302U
Application number: JP17031188U
Authority: JP
Priority date: 1988-12-28
Filing date: 1988-12-28
Publication date: 1990-07-18

Description

[Brief explanation of drawings]

第１図乃至第４図はこの考案の一実施例を示す
もので、第１図はラツシユアジヤスタの要部の概
略構成を示す縦断面図、第２図はラツシユアジヤ
スタ本体の概略構成を示す縦断面図、第３図は内
筒部材を示す縦断面図、第４図はラツシユアジヤ
スタの動作状態を説明するための要部の縦断面図
、第５図は別の実施例を示す縦断面図、第６図乃
至第８図は従来例を示すもので、第６図はエンジ
ンの動弁機構の要部の概略構成を示す縦断面図、
第７図はラツシユアジヤスタ本体の概略構成を示
す縦断面図、第８図は高圧室内への空気の流入状
態を示す縦断面図である。３ａ，３ｂ……バルブステム、８ａ，８ｂ……
ロツカーアーム、１０……収納室、１１……ラツ
シユアジヤスタ本体、１２……ボデイ、１３……
内筒部材、１４……仕切り壁、１５……高圧室、
１６……油溜室、１７……油導入路、１８……油
流通孔、１９……弁体、２２……ばね部材、２３
……キヤツプ部材、２４……連結穴、２５……排
出通路、２６……延出部。 Figures 1 to 4 show an embodiment of this invention, with Figure 1 being a vertical sectional view showing the schematic structure of the main parts of the lash adjuster, and Figure 2 being a schematic diagram of the lash adjuster main body. FIG. 3 is a longitudinal sectional view showing the structure, FIG. 3 is a longitudinal sectional view showing the inner cylinder member, FIG. 4 is a longitudinal sectional view of the main parts to explain the operating state of the lash adjuster, and FIG. 5 is a different implementation. FIGS. 6 to 8 show a conventional example, and FIG. 6 is a longitudinal sectional view showing a schematic configuration of the main parts of the valve mechanism of an engine.
FIG. 7 is a vertical cross-sectional view showing the schematic structure of the lash adjuster main body, and FIG. 8 is a vertical cross-sectional view showing the state of air flowing into the high pressure chamber. 3a, 3b... Valve stem, 8a, 8b...
Rotsuker arm, 10...Storage chamber, 11...Lush adjuster body, 12...Body, 13...
Inner cylinder member, 14... partition wall, 15... high pressure chamber,
16... Oil reservoir chamber, 17... Oil introduction path, 18... Oil distribution hole, 19... Valve body, 22... Spring member, 23
... Cap member, 24 ... Connection hole, 25 ... Discharge passage, 26 ... Extension part.

Claims

[Scope of utility model registration request]

Equipped with a bottomed cylindrical body that can be protruded and retracted from the storage chamber formed in the rocker arm of the engine's valve mechanism toward the valve stem side, and hydraulic pressure that automatically absorbs valve clearance as the body protrudes and retracts. The main body of the lash adjuster,
An inner cylindrical member slidably disposed within the body of the latch adjuster main body, and an inner cylindrical member formed in the inner cylindrical member and connected to a high pressure chamber on the inner bottom side of the body and an oil introduction path on the rocker arm side. a partition wall that partitions the oil reservoir chamber, an oil flow hole formed in the partition wall, and a valve body that is disposed within the high pressure chamber and opens and closes the oil flow hole according to the pressure within the high pressure chamber. a spring member that biases the body in a direction protruding toward the valve stem; and a spring member that is slidably disposed on the open end side of the body and discharges air in the oil reservoir to the outside. a cap member having a connection hole connected to a discharge passage; and an extension provided at the upper end of the inner cylindrical member and extending toward the connection hole of the cap member to increase the capacity inside the oil reservoir. A lock adjuster characterized by having an exit part.