JPH0215225U

JPH0215225U -

Info

Publication number: JPH0215225U
Application number: JP8879288U
Authority: JP
Priority date: 1988-07-04
Filing date: 1988-07-04
Publication date: 1990-01-30
Anticipated expiration: 2003-07-04
Also published as: JPH0613794Y2

Description

[Brief explanation of drawings]

第１図から第３図は本考案のバルブシート保持
装置の実施例を示すもので、第１図はバルブシー
ト取付装置の全体図、第２図はバルブシートの保
持装置の縦断面図、第３図は第２図のＡ―Ａ線方
向からの正面図、第４図は従来の保持装置を示す
縦断面図、第５図は同正面図である。尚図面中、１はバルブ取付装置、２は回転軸、
３は圧入バー、４は保持装置、５はバルブシート
、６はワーク、６ａは取付孔、７はシートホルダ
ー、７ａは軸芯孔、８はフローテイングバー、８
ａは係止部材、９は段部、１０は小径軸、１１は
中空孔、１２はスプリング、１３はシート保持ボ
ール、１４はボール保持スリーブ、１４ａは側端
部、１５は位置決めピン、５０は圧入バー、５１
は段部、５２は小径軸、５３はネジ孔、５４はボ
ールプランジヤー、５５は溝、５６はスプリング
、５７はシート保持ボール、５８はバルブシート
、５９は取付孔、ｇはギヤツプを示す。 1 to 3 show an embodiment of the valve seat holding device of the present invention. FIG. 1 is an overall view of the valve seat mounting device, FIG. 2 is a vertical sectional view of the valve seat holding device, and 3 is a front view taken along line AA in FIG. 2, FIG. 4 is a longitudinal sectional view showing a conventional holding device, and FIG. 5 is a front view of the same. In the drawing, 1 is the valve mounting device, 2 is the rotating shaft,
3 is a press-fitting bar, 4 is a holding device, 5 is a valve seat, 6 is a workpiece, 6a is a mounting hole, 7 is a seat holder, 7a is a shaft center hole, 8 is a floating bar, 8
a is a locking member, 9 is a stepped portion, 10 is a small diameter shaft, 11 is a hollow hole, 12 is a spring, 13 is a seat holding ball, 14 is a ball holding sleeve, 14a is a side end, 15 is a positioning pin, 50 is a Press-fit bar, 51
52 is a small diameter shaft, 53 is a screw hole, 54 is a ball plunger, 55 is a groove, 56 is a spring, 57 is a seat holding ball, 58 is a valve seat, 59 is a mounting hole, and g is a gap.

Claims

[Scope of Claim for Utility Model Registration] (1) In a valve seat holding device provided at the tip of a press-fit bar, this holding device has a stepped portion on the outer circumferential surface, and the tip of the holding device has a small diameter shaft from this stepped portion. A plurality of hollow holes that open radially toward the outer circumference are provided at equal intervals on the outer peripheral surface of the shaft, and each hollow hole is equipped with a seat holding ball that is urged outward by a spring to hold the seat. The ball is characterized in that only a part of its spherical body protrudes above the outer circumferential surface, and the valve seat supplied to the small-diameter shaft portion is held by being sandwiched between the rear apex of this protruding seat holding ball and the stepped portion. Valve seat retaining device. (2) A valve seat holding device installed at the tip of a press-fit bar, which has a seat holder that holds the valve seat and a floating bar made of an elastic body extending from the axis of the press-fit bar, and this seat holder is provided with an axial center hole, the floating bar is inserted into the axial center hole and coupled, and the contact surface between the seat holder and the press-fit bar is made into a slidable spherical shape. Valve seat retention device.