JPH0287908U

JPH0287908U -

Info

Publication number: JPH0287908U
Application number: JP16811388U
Authority: JP
Priority date: 1988-12-26
Filing date: 1988-12-26
Publication date: 1990-07-12

Description

[Brief explanation of drawings]

第１図は本考案の第一実施例であるロツカーア
ーム内蔵型バルブラツシユアジヤスタ１００の軸
線方向断面図である。第２図は本考案によるロツ
カーアーム内蔵型バルブラツシユアジヤスタを、
実際にロツカーアーム内に組み込んだ状態を示す
部分断面図である。第３図は本考案の第二実施例
であるロツカーアーム内蔵型バルブラツシユアジ
ヤスタ３００の軸線方向断面図である。第４図は
、内円管１０３の上面１０３ｆと円板１０４の下
面１０４ａの断面形状を模式的に表わした図であ
る。主要部分の符号の説明、１０２……外円管、１
０３，３０３……内円管、１０４，３０４……円
板、２０１……ロツカーアーム。 FIG. 1 is an axial sectional view of a valve lash adjuster 100 with a built-in rocker arm, which is a first embodiment of the present invention. Figure 2 shows the valve brush adjuster with a built-in rocker arm according to the present invention.
It is a partial sectional view showing a state in which it is actually incorporated into a rocker arm. FIG. 3 is an axial cross-sectional view of a valve brush adjuster 300 with a built-in rocker arm, which is a second embodiment of the present invention. FIG. 4 is a diagram schematically showing the cross-sectional shapes of the upper surface 103f of the inner circular tube 103 and the lower surface 104a of the disc 104. Explanation of symbols of main parts, 102...Outer circular tube, 1
03,303...Inner circular tube, 104,304...Disc, 201...Rotzker arm.

Claims

[Claims for Utility Model Registration] 1. A rocker arm that has a closed end at one end and an open end at the other end, and is slidable into a bag-shaped circular hole provided at one end of the rocker arm, and the closed end is inserted into the rocker arm. A flow channel that opens toward a space defined between an outer circular tube that is fitted and protrudes from the circular hole, and a closed end of the outer circular tube that is slidably surrounded by the outer circular tube. In a valve lash adjuster with a built-in rocker arm, comprising an inner circular pipe having an opening, and a means for preventing one-way movement of fluid provided in the flow opening,
It is arranged to sandwich the inner circular tube together with the outer circular tube in the axial direction, has a first opening through which fluid passes, and further has a surface on the inner tube side formed by a first circular arc. A disc is provided, an end of the inner circular tube on the disc side is a closed end, and a second opening that allows fluid to pass from the first opening to the interior of the inner circular tube. provided at the closed end,
Furthermore, the surface on the disk side at the closed end is formed by a second circular arc smaller than the first circular arc, and when the surface on the inner circular tube side and the surface on the disk side abut, A valve lash adjuster with a built-in rocker arm that is characterized by uniform contact pressure. 2. The valve brush adjuster with a built-in rocker arm according to claim 1, wherein the first circular arc is a concave gossock arc, and the second circular arc is a convex single circular arc. 3. A valve lash adjuster with a built-in rocker arm according to claim 2, wherein the curvature of said gossock arc is approximately 1.05 times the curvature of said single circular arc. 4 The diameter of the circular wire is approximately 1/ of the outer diameter of the outer circular tube.
4. The valve brush adjuster with a built-in rocker arm according to claim 2, wherein the valve brush adjuster has a built-in rocker arm. 5. The outer diameter of the disk is approximately equal to the outer diameter of the outer circular tube, and when the end of the outer circular tube and the disk abut with a contact surface pressure of approximately 1 kgf/cm ² . A valve lash adjuster with a built-in rocker arm according to any one of claims 1 to 4, wherein the contact portion is capable of sealing a fluid having a kinematic viscosity of 3 cSt or less. 6 It has a closed end at one end and an open end at the other end, and is slidably fitted into a bag-shaped circular hole provided at one end of the rocker arm, with the closed end protruding from the circular hole. an inner circular tube that is slidably surrounded by the outer circular tube and has a flow port that opens toward a space defined between the closed end of the outer circular tube; In the valve lash adjuster with a built-in rocker arm, the inner circular pipe is integrally formed with the bag-shaped hole side as a closed end, and the valve lash adjuster has a rocker arm built-in means for preventing fluid movement in one direction provided at the flow port. A valve lash adjuster with a built-in rocker arm, characterized in that a central opening is provided at the center of the closed end to allow fluid to pass from the outside to the inside of the inner circular pipe.