JPH025697U

JPH025697U -

Info

Publication number: JPH025697U
Application number: JP8467288U
Authority: JP
Priority date: 1988-06-27
Filing date: 1988-06-27
Publication date: 1990-01-16
Anticipated expiration: 2003-06-27
Also published as: JPH0618130Y2

Description

[Brief explanation of drawings]

第１〜第６図は本考案の第１実施例を示し、第
１図は自動車の負圧式ブレーキサーボモータへの
負圧導入手段を示す縦断正面図、第２図は逆止弁
の正面図、第３図は逆止弁の縦断正面図で第４図
−線断面図に対応し、第４図は第２図−
線断面図、第５図は弁筒の分解正面図、第６図Ａ
は第１半体の斜視図、第６図Ｂは第２半体の斜視
図、第７、第８図は本考案の第２、第３実施例の
断面図であり、それぞれ第４図に対応する。１……逆止弁、６……可撓性ホース、７……弁
筒、７_１，７_２……第１、第２半体、８_１，８_２……第１、第２中空端部、９……胴部、１０……
弁座、１１……弁体、１２……ばね支承面、１３
……弁ばね、１５_１，１５_２……第１、第２樋状
部、１６，１７……合せ面、１８〜２１……半環
状端面。 Figures 1 to 6 show a first embodiment of the present invention, Figure 1 is a longitudinal sectional front view showing means for introducing negative pressure into a negative pressure type brake servo motor of an automobile, and Figure 2 is a front view of a check valve. , FIG. 3 is a longitudinal sectional front view of the check valve, and corresponds to the sectional view taken along the line in FIG. 4, and FIG.
Line sectional view, Figure 5 is an exploded front view of the valve cylinder, Figure 6A
is a perspective view of the first half, FIG. 6B is a perspective view of the second half, and FIGS. 7 and 8 are sectional views of the second and third embodiments of the present invention. handle. DESCRIPTION OF SYMBOLS 1... Check valve, 6... Flexible hose, 7... Valve cylinder, 7 ₁ , 7 ₂ ... First and second halves, 8 ₁ , 8 ₂ ...First and second hollow end portions, 9...Body portion, 10...
Valve seat, 11... Valve body, 12... Spring bearing surface, 13
... Valve spring, 15 ₁ , 15 ₂ ... First and second gutter-shaped parts, 16, 17 ... Matching surface, 18-21 ... Semi-annular end surface.

Claims

[Scope of utility model registration request]

a first hollow end portion having a valve seat; a body portion for guiding the valve body;
and a cylindrical valve barrel in which a second hollow end portion having a valve spring bearing surface is connected in the axial direction, and a valve body that cooperates with the valve seat, and a valve body that urges the valve body in a seating direction with the valve seat. A check valve that accommodates a valve spring whose fixed end is supported on the spring bearing surface, the valve spring being pushed into a flexible hose to bring the inner circumferential surface of the hose into close contact with the outer circumferential surface of the valve cylinder. In the case where the valve cylinder is used in the above-mentioned state, the valve cylinder includes a first hollow end portion and a first gutter-like portion that is connected to the first hollow end portion and constitutes one half of the body portion in the radial direction. and a second half consisting of the second hollow end and a second gutter-like part that is connected to the second hollow end and constitutes the other half in the radial direction of the body. The semi-annular end surfaces of the first and second trough-like portions abut the semi-annular end surfaces of the second and first hollow end portions, respectively, and the mutual alignment of the first and second trough-like portions A check valve characterized by a welded surface.