JPH0240930U

JPH0240930U -

Info

Publication number: JPH0240930U
Application number: JP11943688U
Authority: JP
Priority date: 1988-09-12
Filing date: 1988-09-12
Publication date: 1990-03-20

Description

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

第１図および第２図はそれぞれこの考案の一実
施例の構成を示す側断面図、第３図および第４図
はそれぞれ従来のラジエータキヤツプの構成を示
す側断面図である。１……注水筒、１ｂ……弁座、１ｃ……通気口
、２……ラジエータキヤツプ、３……外蓋、５…
…筒状体、６……可動板、８……スプリング、２
０……内蓋、２０ａ……弁座、２０ｂ……通気孔
、２１……弾性弁体、２１ａ……通気孔。 FIGS. 1 and 2 are side sectional views showing the structure of an embodiment of this invention, and FIGS. 3 and 4 are side sectional views showing the structure of a conventional radiator cap, respectively. 1...Water tube, 1b...Valve seat, 1c...Vent, 2 ...Radiator cap, 3...Outer cover, 5...
...Cylindrical body, 6...Movable plate, 8...Spring, 2
0...Inner lid, 20a...Valve seat, 20b...Vent hole, 21...Elastic valve body, 21a...Vent hole.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

中途部に通気口を有しその通気口よりも下方の
内周部に弁座を有する注水筒を備えたラジエータ
において、前記注水筒の開口端を塞ぐ外蓋と、こ
の外蓋の内側に突設され前記注水筒内に進入する
とともにその進入時に前記注水筒の通気口を通し
て外部と連通する筒状体と、この筒状体の周囲に
上下動自在に設けられた可動板と、この可動板に
下方への偏倚力を与えるスプリングと、前記筒状
体の下部の開口を塞ぐように前記可動板に設けら
れた内蓋と、この内蓋の下面に設けられ前記ラジ
エータ内が負圧のときは前記内蓋の下降により周
縁が前記注水筒内の弁座に当接し且つ中央部が下
方へ撓む弾性弁体とを具備し、前記内蓋の下面の
略中央部に環状の弁座を突設するとともにその弁
座を囲む位置に通気孔を形成し、かつ前記弾性弁
体の中央部に通気孔を形成したことを特徴とする
ラジエータキヤツプ。 In a radiator equipped with a water filler tube that has a vent in the middle and a valve seat on the inner periphery below the vent, an outer cover that closes an open end of the water filler tube, and a protrusion on the inside of the outer cover. a cylindrical body that is installed and enters the water injection tube and communicates with the outside through a vent of the water injection tube when entering the water injection tube; a movable plate that is provided around the cylindrical body so as to be movable up and down; and the movable plate. a spring that applies a downward biasing force to the radiator; an inner cover provided on the movable plate so as to close the opening at the bottom of the cylindrical body; and an inner cover provided on the lower surface of the inner cover when the inside of the radiator is under negative pressure. comprises an elastic valve body whose periphery comes into contact with a valve seat in the water injection cylinder and whose central part bends downward when the inner cover is lowered, and has an annular valve seat approximately in the center of the lower surface of the inner cover. What is claimed is: 1. A radiator cap, characterized in that a vent hole is formed in a protruding position surrounding the valve seat, and a vent hole is formed in the center of the elastic valve body.