JPH0224196U

JPH0224196U -

Info

Publication number: JPH0224196U
Application number: JP10296688U
Authority: JP
Priority date: 1988-08-03
Filing date: 1988-08-03
Publication date: 1990-02-16

Description

[Brief explanation of drawings]

第１，２図は本考案のホース内蔵型逆止弁の一
実施例を示す縦断面図であり、第１図は逆止弁の
、第２図は逆止弁が可撓性ホース内に挿入される
時のそれぞれの縦断面図、第３図は従来の逆止弁
の自動車の負圧式ブレーキ倍力装置への取付けを
示す一部破断図、第４図は可撓性ホースに内蔵さ
れた時の従来の逆止弁の断面図である。１，２０……逆止弁、２……可撓性ホース、６
，２１……弁本体、２１ａ，２１ｃ……外径部分
、６ｂ，２１ｂ……後端部、６ａ，２２……先端
部、２２ａ……膨出部、３１……段部、３２……
挿入用治具。 Figures 1 and 2 are longitudinal cross-sectional views showing one embodiment of the hose built-in check valve of the present invention. Figure 1 shows the check valve, and Figure 2 shows the check valve inside the flexible hose. Fig. 3 is a partially cutaway view showing the installation of a conventional check valve to an automobile's negative pressure brake booster, and Fig. 4 is a longitudinal cross-sectional view of each check valve when it is inserted. FIG. 3 is a cross-sectional view of a conventional check valve when 1, 20...Check valve, 2...Flexible hose, 6
, 21... valve body, 21a, 21c... outer diameter portion, 6b, 21b... rear end, 6a, 22... tip, 22a... bulge, 31... step, 32...
Insertion jig.

Claims

[Scope of utility model registration request]

In a check valve built into a flexible hose, the outer diameter part of the check valve body is formed to be slightly thicker than the inner diameter part of the hose, and the distal end of the check valve has a gently bulging part. At the same time, the rear end of the same
A check valve with a built-in hose, characterized in that a stepped portion is formed having a concentric outer diameter portion having an outer diameter smaller than the outer diameter portion of the main body.