JPS61189803U

JPS61189803U -

Info

Publication number: JPS61189803U
Application number: JP1985074774U
Authority: JP
Priority date: 1985-05-20
Filing date: 1985-05-20
Publication date: 1986-11-26

Description

[Brief explanation of the drawing]

図面は本考案の実施例に係り、第１図はタイヤ
内圧自動調整装置の概略縦断面図、第２図は第１
図のＡ部拡大縦断面図、第３図から第５図はバル
ブ機構の作用を示し、第３図は通常の状態におけ
る縦断面図、第４図はタイヤ内圧が低下した状態
における縦断面図、第５図はタイヤ内圧が高くな
り過ぎた状態における縦断面図、第６図は第３図
の―矢視縦断面図、第７図はバルブ機構をリ
ム部およびエアタンク外壁に取り付けるときの状
態を示す縦断面図、第８図から第１０図はエア流
入ポートの別実施例に係る第１の取付け軸部にお
ける横断面図である。１……タイヤ内圧自動調整装置、２……高圧タ
ンク室、３……バルブ機構、５……エア入りタイ
ヤ、６……リム部、１０……シリンダ、１０ｂ，
１０ｄ……エア流入ポート、１１……中空室、１
２……ピストン、１３……弾性部材の一例たる圧
縮ばね。 The drawings relate to embodiments of the present invention, and FIG. 1 is a schematic vertical sectional view of an automatic tire internal pressure adjustment device, and FIG.
3 to 5 show the action of the valve mechanism, FIG. 3 is a longitudinal sectional view in a normal state, and FIG. 4 is a longitudinal sectional view in a state where the tire internal pressure is reduced. , Figure 5 is a longitudinal cross-sectional view in a state where the tire internal pressure has become too high, Figure 6 is a vertical cross-sectional view taken along the - arrow in Figure 3, and Figure 7 is a state in which the valve mechanism is attached to the rim and the outer wall of the air tank. FIGS. 8 to 10 are cross-sectional views of the first mounting shaft portion of another embodiment of the air inlet port. DESCRIPTION OF SYMBOLS 1... Tire internal pressure automatic adjustment device, 2... High pressure tank chamber, 3... Valve mechanism, 5... Pneumatic tire, 6... Rim part, 10... Cylinder, 10b,
10d...Air inflow port, 11...Hollow chamber, 1
2... Piston, 13... Compression spring which is an example of an elastic member.

Claims

[Scope of utility model registration request]

A high-pressure tank chamber is attached to the rim portion to which the pneumatic tire is attached, and a hollow chamber is formed that communicates with the high-pressure tank chamber and the pneumatic tire, and a hollow chamber is formed on the outer peripheral surface of the high-pressure tank chamber and the hollow chamber, respectively. The valve mechanism includes a cylinder formed with a plurality of communicating air inflow ports, a piston slidably inserted into a hollow chamber of the cylinder, and an elastic member that presses the piston in a direction opposite to the tire internal pressure. The piston is interposed between the rim portion and the high-pressure tank chamber, and when the internal pressure of the pneumatic tire is at a predetermined value, the piston closes the air inflow port, and the air inside the pneumatic tire and the high-pressure tank are closed. When the internal pressure of the pneumatic tire drops below a predetermined value, the piston moves by the biasing force of the elastic member to selectively open the air inflow port, and the internal pressure of the pneumatic tire decreases below a predetermined value. An automatic tire internal pressure adjustment device, characterized in that the internal pressure of the pneumatic tire is automatically adjusted by communicating with the high pressure tank chamber and causing the internal pressure of the high pressure tank chamber to flow into the pneumatic tire.