JPS6441403U

JPS6441403U -

Info

Publication number: JPS6441403U
Application number: JP13632087U
Authority: JP
Priority date: 1987-09-08
Filing date: 1987-09-08
Publication date: 1989-03-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す要部断面図、
第２図は同上の全体図、第３図は同上の作用を説
明するための図である。１……タイヤ、２……空気注入口、４……筒状
本体、５ｂ……第１連通路、６ａ……第２連通路
、７……ピストン、８……第１室、９……第２室
、１０……スプリング。 FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is an overall view of the same as above, and FIG. 3 is a diagram for explaining the action of the same. DESCRIPTION OF SYMBOLS 1... Tire, 2... Air inlet, 4... Cylindrical main body, 5b... First communicating path, 6a... Second communicating path, 7... Piston, 8... First chamber, 9... 2nd room, 10...spring.

Claims

[Scope of utility model registration request]

a movable piston provided in a cylindrical body and defining a first chamber and a second chamber within the cylindrical body; a first communication passage communicating the first chamber with the interior of the tire; An air pressure alarm comprising a second communication path that communicates the second chamber with the atmosphere, and an elastic member that biases the piston toward the first chamber is attached to an air inlet of the tire, and The biasing force of the elastic member is
A tire pressure warning device for a vehicle, characterized in that the air pressure moves a piston toward a second chamber to minimize the volume of the second chamber when the tire air pressure is at a normal value.