JPH0351106U - - Google Patents

Description

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

第１図は本考案の実施例を示す断面図、第２図
は第１図のリフタ軸線方向の−矢視図、第３
図はシム板の取り外し方法を示す断面説明図、第
４図は従来例を示す断面説明図である。 １……シリンダ、１_１……リフタボア部、１_２
……シム板のシリンダヘツド側脱着用溝、１_３…
…カム軸軸受の取付部、２……排気弁、２_１……
バルブステム、３……リフタ、３_１……シム板の
リフタ側脱着用溝、３_２……凹部、４……シム板
、５……カム軸、５_１……カム、５_２……カム軸
ジヤーナル、６……圧縮バネ、７……スプリング
リテーナ、８……ストツパー、９……ドライバー
。 Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a view taken in the direction of the axis of the lifter in Fig. 1, and Fig.
The figure is an explanatory cross-sectional view showing a method for removing the shim plate, and FIG. 4 is an explanatory cross-sectional view showing a conventional example. 1...Cylinder, 1 ₁ ...Lifter bore part, 1 ₂
...Shim plate cylinder head side detachment groove, 1 ₃ ...
...Camshaft bearing mounting part, 2...Exhaust valve, 2 ₁ ...
Valve stem, 3... Lifter, 3 ₁ ... Groove for removing and removing the lifter side of the shim plate, 3 ₂ ... Recess, 4... Shim plate, 5... Camshaft, 5 ₁ ... Cam, 5 ₂ ... Cam Shaft journal, 6...compression spring, 7...spring retainer, 8...stopper, 9...driver.

Claims (1)

【実用新案登録請求の範囲】 (1) 吸気弁又は排気弁におけるバルブステムの
上端に、シリンダヘツドのボス部のリフタボア部
に摺動自在に保持した円筒状のリフタを被嵌し、
該リフタの頂面凹部に隙間調整用のシム板を設け
ると共に該凹部の外周壁に該シム板の脱着用溝を
設け、該シム板にカムを当接した内燃機関の動弁
装置において、前記シリンダヘツドのボス部のリ
フタボア部上端縁部に、該シム板のシリンダヘツ
ド側脱着用溝を設けたことを特徴とする内燃機関
の動弁装置。 (2) 前記シリンダヘツド側脱着用溝が、カム軸
軸受の取付部中心軸に対し、前記ボス部のリフタ
ボア部中心を通る略３０°方向線上に設けられた
ことを特徴とする請求項１記載の内燃機関の動弁
装置。[Scope of Claim for Utility Model Registration] (1) A cylindrical lifter slidably held in a lifter bore of a boss portion of a cylinder head is fitted onto the upper end of a valve stem of an intake valve or an exhaust valve,
In the valve operating system for an internal combustion engine, a shim plate for gap adjustment is provided in the recessed portion of the top surface of the lifter, and a groove for removing and removing the shim plate is provided in the outer circumferential wall of the recessed portion, and a cam is brought into contact with the shim plate. A valve train for an internal combustion engine, characterized in that a groove for removing and removing the shim plate on the cylinder head side is provided at the upper end edge of the lifter bore portion of the boss portion of the cylinder head. (2) The cylinder head side detachment groove is provided on a direction line of approximately 30 degrees passing through the center of the lifter bore portion of the boss portion with respect to the central axis of the mounting portion of the camshaft bearing. valve train for internal combustion engines.