JPS59133728U - radiator cap - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の冷却システムの説明図、第２図はこの考
案のラジェータキャップ構造を示す断面　　、図である
。 １３・・・・・・ラジェータキャップ、１４・・・・・
・フランジ部、１６・・・・・・支持軸、１７・・・・
・・サーモスイッチ、１８・・・・・・加圧弁、１９・
・・・・・通孔、２０・・・・・・第２の圧縮スプリン
グ、２１・・・・・・負圧弁、２２；・・・・・第１の
バッキング、２４・・・・・・第１の圧縮スプリング、
２５・・・・・・第２のバッキング。FIG. 1 is an explanatory diagram of a conventional cooling system, and FIG. 2 is a cross-sectional view showing the radiator cap structure of this invention. 13...Radiator cap, 14...
・Flange part, 16...Support shaft, 17...
...Thermo switch, 18... Pressure valve, 19.
...Through hole, 20...Second compression spring, 21...Negative pressure valve, 22;...First backing, 24... a first compression spring;
25...Second backing.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アッパタンクの給水口に嵌合させるフランジ部に支持軸
を突設し、該支持軸には、上面に第１のバッキングを取
り付けた負圧弁と、該負圧弁の上部に位置し、周縁部下
面に第２のバッキングおよび負圧弁対向部位に通孔をそ
れぞれ有する円板状の加圧弁とを軸方向摺動自在に嵌挿
し、上記支持軸には上記負圧弁とともに第１のバッキン
グを上記通孔を塞ぐ方向に付勢する第１の圧縮スプリン
グを係止し、上記加圧弁とフランジ部との間には、第２
のバッキングが給水口座面に接する方向に加圧弁を付勢
する第２の圧縮スプリングを介装し、上記支持軸端には
サーモスイッチを取り付けたことを特徴とするラジェー
タキャップ。A support shaft is provided protruding from the flange portion that fits into the water supply port of the upper tank, and the support shaft includes a negative pressure valve with a first backing attached to the upper surface, and a negative pressure valve located on the upper part of the negative pressure valve and attached to the lower surface of the periphery. A second backing and a disc-shaped pressurizing valve each having a through hole in a portion facing the negative pressure valve are fitted so as to be slidable in the axial direction, and the first backing and the negative pressure valve are inserted into the support shaft through the through hole. A first compression spring biased in the closing direction is engaged, and a second compression spring is provided between the pressure valve and the flange portion.
1. A radiator cap, characterized in that a second compression spring is interposed to urge a pressurizing valve in a direction in which the backing comes into contact with a water supply port surface, and a thermoswitch is attached to the end of the support shaft.