JPH0250106U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図および第２図はこの考案の一実施例を示
すもので、第１図は要部の概略構成を示す横断面
図、第２図は油圧回路を示す要部の縦断面図、第
３図は動弁装置のバルブタイミングを示す特性図
である。 １……スプロケツト（回転体）、３……カム軸
、５……突設部、６……延出部、８……油圧シリ
ンダ（駆動シリンダ）、９……ピストン、１９…
…ばね部材。 Figures 1 and 2 show an embodiment of this invention; Figure 1 is a cross-sectional view showing a schematic configuration of the main parts, Figure 2 is a vertical cross-sectional view of the main parts showing the hydraulic circuit, and Figure 2 is a vertical cross-sectional view of the main parts showing the hydraulic circuit. FIG. 3 is a characteristic diagram showing the valve timing of the valve train. DESCRIPTION OF SYMBOLS 1... Sprocket (rotating body), 3... Camshaft, 5... Projection part, 6... Extension part, 8... Hydraulic cylinder (drive cylinder), 9... Piston, 19...
...Spring member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジン本体側から駆動力が伝達されるリング
状の回転体と、この回転体の内周部位に内方向に
向けて突設させた突設部と、前記エンジン本体の
動弁装置の弁体を開閉操作するカム軸に設けられ
、前記回転体内に回動自在に装着された延出部と
、この延出部に設けられ、前記回転体の突設部に
対し回転方向に沿つて対向配置させた駆動シリン
ダと、前記エンジン本体の回転数に応じて前記駆
動シリンダ内への油圧の供給を制御し、油圧の供
給にともない前記駆動シリンダ内のピストンを通
常位置から所定の動作位置まで駆動して前記カム
軸を前記回転体に対して所定量回動操作するする
油圧式の回動操作機構と、前記回転体と前記カム
軸との間に介設され、前記回転体と前記カム軸と
の間を常に圧接状態で保持するばね部材とを具備
したことを特徴とするバルブタイミング調整装置
。 A ring-shaped rotating body to which driving force is transmitted from the engine main body side, a protrusion provided inwardly on the inner circumference of the rotating body, and a valve body of the valve train of the engine main body. an extending portion provided on a camshaft for opening/closing operations and rotatably mounted within the rotating body; and an extending portion provided on the extending portion and disposed opposite to the protruding portion of the rotating body along the rotational direction. control the supply of hydraulic pressure into the drive cylinder according to the rotational speed of the engine body, and drive the piston in the drive cylinder from a normal position to a predetermined operating position as the hydraulic pressure is supplied. a hydraulic rotation operation mechanism for rotating the camshaft by a predetermined amount with respect to the rotating body; 1. A valve timing adjustment device comprising: a spring member that always maintains a pressure contact state between the valve timing adjustment device and the valve timing adjustment device.