JPS6299487U

JPS6299487U -

Info

Publication number: JPS6299487U
Application number: JP19263785U
Authority: JP
Priority date: 1985-12-14
Filing date: 1985-12-14
Publication date: 1987-06-24
Also published as: JPH034627Y2

Description

[Brief explanation of the drawing]

図面は本考案に係るフユーエルタンク用キヤツ
プの１実施例を示すもので第１図は縦断面図、第
２図は要部分解斜視図、第３図はカム部の展開図
、第４図は平面図、第５図はオン状態の要部断面
図である。１……チエツク弁、２……可動片、３……筒状
部、４……切欠部、５……突部、６……段部、７
……保持体、８……凹部、９……キヤツプ本体、
１０……係合片、１１……摘み、１２……孔、１
３……弁座、１４，１８……ばね、１５……凹溝
、１６……第１カム面、１７……第２カム面。 The drawings show one embodiment of the fuel tank cap according to the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is an exploded perspective view of the main part, Fig. 3 is an exploded view of the cam part, and Fig. 4. 5 is a plan view, and FIG. 5 is a sectional view of the main part in the on state. DESCRIPTION OF SYMBOLS 1... Check valve, 2... Movable piece, 3... Cylindrical part, 4... Notch part, 5... Projection, 6... Step part, 7
... Holding body, 8 ... Recess, 9 ... Cap body,
10... Engagement piece, 11... Knob, 12... Hole, 1
3... Valve seat, 14, 18... Spring, 15... Concave groove, 16... First cam surface, 17... Second cam surface.

Claims

[Scope of utility model registration request]

Check valve 1 that can be opened by negative pressure inside the tank
A cylindrical portion 3 of a size that does not restrict the operation of the check valve 1 is provided on the lower surface of the movable valve 2, and an upward notch 4 is provided on the upper portion of the movable valve 2.
A protrusion 5 is formed below the movable valve itself.
A recess 8 of the holder 7 having a step 6 with which the protrusion 5 contacts
The holder 7 is loosely fitted into the cap main body 9, and a knob 11 for on/off operation to which an engaging piece 10 that engages with the notch 4 is fixed is movably supported on the main body 9. A spring 14 is interposed between the engagement piece 10 and the movable valve 2 to press the cylindrical portion 3 against the valve seat 13 surrounding the hole 12 in the bottom surface of the holder, and a spring 14 is interposed between the engaging piece 10 and the movable valve 2. The first cam determines the position of the engagement piece 10 and allows the movable valve 2 to rise against the spring 14 due to positive pressure when the movable valve protrusion 5 is in the groove 15 of the stepped portion 6. A surface 16 and a second cam surface 17 are provided, which are at the same height as the notch 4 at the position where the movable valve protrusion 5 rests on the stepped portion 6, and which fixes the movable valve 2. A fuel tank cap comprising an elastic member 18 between which presses the engagement piece 10 against the cam surfaces 16 and 17.