JPH048207U

JPH048207U -

Info

Publication number: JPH048207U
Application number: JP4741590U
Authority: JP
Priority date: 1990-05-08
Filing date: 1990-05-08
Publication date: 1992-01-24

Description

[Brief explanation of drawings]

添付図面は本考案に係る車両用部品の圧力調整
機構の一実施例を示し、第１図は本考案の圧力調
整機構を使用した車両用前照灯の断面図、第２図
は分解斜視図、第３図は開状態の断面図、第４図
は閉状態の断面図である。１……車両用前照灯（車両用部品）、１６……
灯室、５……本体、５４……凹円錐面の弁座、６
……キヤツプ（本体）、７……可動弁、７２……
円錐形の弁体、８０……圧縮スプリング（可動弁
開閉作動部材）、８１……形状記憶合金スプリン
グ（可動弁開閉作動部材）、９……ゴムグロメツ
ト。 The accompanying drawings show an embodiment of the pressure adjustment mechanism for vehicle parts according to the present invention, and FIG. 1 is a sectional view of a vehicle headlamp using the pressure adjustment mechanism of the present invention, and FIG. 2 is an exploded perspective view. , FIG. 3 is a sectional view in the open state, and FIG. 4 is a sectional view in the closed state. 1...Vehicle headlight (vehicle parts), 16...
Lamp chamber, 5...Main body, 54...Valve seat with concave conical surface, 6
... Cap (main body), 7 ... Movable valve, 72 ...
Conical valve body, 80... Compression spring (movable valve opening/closing member), 81... Shape memory alloy spring (movable valve opening/closing member), 9... Rubber grommet.

Claims

[Scope of Claim for Utility Model Registration] A main body that is attached to the breathing path of a vehicle part with a sealed structure and communicates the inside and outside of the vehicle part, a valve seat provided on the main body, and a valve seat movably disposed on the main body. a movable valve disposed between the main body and the movable valve, and a movable valve opening/closing member made of a shape memory alloy or the like that operates in response to temperature changes in the vehicle component to open and close the movable valve. In the pressure adjustment mechanism for vehicle parts, the movable valve has a conical shape, and the valve seat has a concave conical surface shape with which the movable valve comes into sealing contact;
A pressure adjustment mechanism for a vehicle component, characterized in that the opening/closing direction of the movable valve opening/closing member made of the shape memory alloy or the like is aligned with the axial direction of the conical movable valve and the concave conical valve seat.