JPH0455739U

JPH0455739U -

Info

Publication number: JPH0455739U
Application number: JP9857490U
Authority: JP
Priority date: 1990-09-19
Filing date: 1990-09-19
Publication date: 1992-05-13

Description

[Brief explanation of the drawing]

第１図乃至第６図は本考案の一実施例を示し、
第１図は縦断面図、第２図はコアの斜視図、第３
図は第１図中−線に沿う断面図、第４図は結
線図、第５図はタイヤに対する取付状態を示す縦
断面図、第６図は磁気経路を示す図であり、第７
図及び第８図は従来例の夫々第１図及び第５図相
当図である。図面中、２１は外側ボデイ部、２２は開口端部
、２４はねじ部（取付部）、２５は内側ボデイ部
、２５ａは底部、２８は圧力スイツチ、３８はコ
ア、３８ａは筒状部、３８ｂは突極（突出部）、
３９はコイルを示す。 1 to 6 show an embodiment of the present invention,
Figure 1 is a longitudinal sectional view, Figure 2 is a perspective view of the core, and Figure 3 is a vertical sectional view.
The figures are a sectional view taken along the line - in Fig. 1, Fig. 4 is a wiring diagram, Fig. 5 is a longitudinal sectional view showing how it is attached to the tire, Fig. 6 is a diagram showing the magnetic path, and Fig. 7 is a diagram showing the magnetic path.
8 and 8 are views corresponding to FIG. 1 and FIG. 5, respectively, of the conventional example. In the drawing, 21 is an outer body part, 22 is an open end part, 24 is a screw part (attachment part), 25 is an inner body part, 25a is a bottom part, 28 is a pressure switch, 38 is a core, 38a is a cylindrical part, 38b is a salient pole (protrusion),
39 indicates a coil.

Claims

[Scope of Claim for Utility Model Registration] 1. A metal outer body part that is open at both ends and has a mounting part that is attached to the tire rim of a vehicle formed in one of the open ends, and a bottomed body part that is installed inside this outer body part. an inner body part made of plastic which is cylindrical in shape and whose bottom part is flush with or inward from one opening end surface of the outer body part; a pressure switch desired at the other opening of the inner body part, a core attached to the inner bottom of the inner body part and having a protruding part at the center of the cylindrical part, and a core wound around the core to perform a communication operation according to the pressure switch. A pressure sensor comprising a coil that performs 2 A metal outer body part with both ends open and a mounting part to be attached to a vehicle tire rim formed at one open end, and a plastic bottomed cylindrical body mounted inside this outer body part. an inner body part, a pressure switch which is attached to the inner body part and whose pressure receiving part side is located at the other opening of the outer body part, and a protrusion part which is attached to the inner bottom part of the inner body part and which is located in the center of the cylindrical part. and a coil that is wound around the core and performs a communication operation in accordance with the pressure switch, and when the outer body part is attached to the tire rim via the attachment part, the outer body part A pressure sensor characterized in that one end face of the opening and the bottom of the inner body portion are set to be flush with or inward from the inner circumferential surface of the tire rim.