JPS59126108U

JPS59126108U - Ceramic valve shaft end holding device

Info

Publication number: JPS59126108U
Application number: JP1900583U
Authority: JP
Inventors: 義正林
Original assignee: 日産自動車株式会社
Priority date: 1983-02-14
Filing date: 1983-02-14
Publication date: 1984-08-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来装置の要部を示しＡ−Ｃはバルブ軸端部の
側面図、ＤはＢの組立状態を示す一部切断側面図である
。第２図は本考案の一実施例を示す縦断側面図、第３図
は同上要部の分解斜視図、第４図はバルブの軸端に作用
する応力分布図、第５図は本考案の他の実施例を示す要
部縦断側面図、第６図は本考案の他の実施例を示す縦断
側面図、第７図は同上Ａ−Ａ断面図、第８図は同上のリ
ング部材の単位部材とバルブ軸端部とを示す斜視図であ
る。１１・・・バルブ、１２・・・ステム、２０・・・リン
ク部材、２２．２４・・・テーパ面、２３・・・アッパ
スプリングリテーナ、２５・・・ハブ部、３１・・・キ
ャップ部材、３２・・・ロッカアーム、４１・・・スペ
ーサ、Ｃ・・・クリアランス、５０・・・リング部材、
５０Ａ・・・分割部材。、２０１１−「Ｉ第４図FIG. 1 shows the main parts of the conventional device, A-C is a side view of the end of the valve shaft, and D is a partially cutaway side view showing the assembled state of B. Fig. 2 is a longitudinal side view showing one embodiment of the present invention, Fig. 3 is an exploded perspective view of the main parts of the same, Fig. 4 is a stress distribution diagram acting on the shaft end of the valve, and Fig. 5 is a diagram of the present invention. FIG. 6 is a vertical side view of main parts showing another embodiment of the present invention, FIG. 7 is a sectional view taken along line A-A of the same as above, and FIG. 8 is a unit of the ring member of same as above. FIG. 3 is a perspective view showing the member and the end of the valve shaft. DESCRIPTION OF SYMBOLS 11... Valve, 12... Stem, 20... Link member, 22.24... Tapered surface, 23... Upper spring retainer, 25... Hub portion, 31... Cap member, 32... Rocker arm, 41... Spacer, C... Clearance, 50... Ring member,
50A...Divided member. , 20 11-“I Fig. 4

Claims

[Scope of utility model registration request]

(1) In a ceramic poppet valve that is elastically biased in the valve closing direction by a valve spring, it is fitted onto the outer periphery of the valve shaft end, and has a tapered surface on the outer peripheral surface that becomes larger in diameter toward the valve shaft end. a ring member that is partially separated by an axial slit; a spring retainer that fits on the outer peripheral tapered surface of the ring member and receives an elastic biasing force in the valve closing direction of the valve ring; and a valve shaft end surface. a cap member which is capped on the end of the valve shaft so as to be spaced apart from each other so as not to be in direct contact with each other, and whose skirt end face abuts the end face of the ring member to receive the valve opening force and transmit the same to the ring member; A ceramic valve shaft end holding device characterized by □.

(2) The ring member is provided with a protrusion that fits into a locking recess with at least an arcuate cross section in the axial direction provided on a part of the outer circumferential surface of the end of the valve shaft. Ceramic valve shaft end retainer.