JP2001221354A - Tire valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To particularly improve durability, to simplify a structure, and to extremely easily perform work such as inspection in a tire valve for injecting air into a tire installed in various vehicles such as a bicycle, a two wheeler such as a bicycle, a motorcycle or the like and an automobile. SOLUTION: A sliding opening closing valve part 3 having an air delivery hole 3c is arranged in a sliding guide part 2b of a valve frame body A for arranging a cylindrical hollow part 2a and the sliding guide part 2b on the inside. An operation valve part 4 is arranged on the air injection side of the valve frame body A adjacently to the sliding opening closing valve part 3. The air delivery hole 3c of the sliding opening closing valve part 3 is alway put in a closing state in the sliding guide part 2b by tire internal pressure P. The air delivery hole 3c is exposed from the sliding guide part 2b by moving operation to the air delivery side of the valve frame body A of the sliding opening closing valve part 3 via pressing operation of the operation valve part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire valve for injecting air into a tire mounted on various vehicles such as motorcycles such as bicycles and motorcycles and automobiles.
In particular, the present invention relates to a tire valve which has excellent durability, has a simple structure, and can perform operations such as maintenance and inspection extremely easily.

[0002]

2. Description of the Related Art Injecting air into a rubber tube of a tire is performed by a valve. This valve for air injection generally allows air to flow through the valve and into the rubber tube only when air is injected by inserting the air injection nozzle attached to the air compressor device into the valve. When the air injection nozzle is removed from the valve, the air injection path is automatically closed to prevent air from leaking.

[0003] By the way, as a general structure of the above-mentioned valve, a movable valve which can reciprocate along its axial direction is provided inside an outer cylinder of the valve, and the movable valve is connected to the valve via an elastic member such as a spring. Is fixed so as to be pressed toward the air injection port side, and the air flow passage in the valve is shut off.

When air is injected into the rubber tube of the tire, the pressure of the air injected from the air injection nozzle exceeds the elastic force of the spring of the movable valve, and the movable valve is moved toward the rubber tube while contracting the spring. It pushes back, thereby forming an air flow passage and injecting air. When the air is sufficiently filled in the rubber tube and the air injection nozzle is separated from the valve, the movable valve returns to the original position by the restoring force of the spring, and shuts off the air flow passage again.

Another type of valve is one in which a fixed valve is mounted in the outer cylinder instead of the movable valve. An air flow passage is formed in the fixed valve, and an air discharge hole of the air flow passage is formed on an outer peripheral side surface of the fixed valve.
Further, a rubber pipe is mounted around the fixed valve, and the air discharge hole is always shut off due to the adhesion of the rubber pipe. The fixed valve is mounted in the outer cylinder via a rubber pipe.

That is, rubber is interposed between the outer peripheral surface of the fixed valve and the inner peripheral surface of the outer cylinder. Then, insert the air injection nozzle into the valve, and when air is injected, the air pressure passes through the air flow passage and tries to discharge from the air discharge hole to the outside. Air can be injected. Also, if you remove the air injection nozzle from the valve,
The rubber pipe closes the air discharge hole of the fixed valve and shuts off the air flow passage.

[0007]

The valve itself for injecting air into a tire is a very small member. As described above, this fine member is composed of a plurality of components such as an outer cylinder, a movable valve, and a spring (or an outer cylinder, a fixed valve, and a rubber pipe). Therefore, for example, a spring used as a component of a valve is an extremely fine part.

[0008] Each time air is injected into the spring, the spring expands and contracts. In addition, the vibration is applied to the spring while the motorcycle or the automobile is running. From such a thing,
Since the spring is frequently fatigued, it deteriorates quickly,
Along with this, phenomena such as tire air leakage and insufficient air pressure also appear, and the cycle of inspection and replacement of parts is shortened. Similarly, when a fixed valve or a rubber pipe is used in place of the movable valve or the spring, the deterioration of the rubber pipe appears early, and the component replacement cycle is shortened as described above.

[0009] In an automobile, a check is sometimes performed by a measuring device for checking whether the tire pressure is sufficient or insufficient. At this time, a pin is attached to the movable valve, and a pin for pressure measurement is inserted into the valve to press the pin attached to the movable valve into the valve to slightly move the movable valve to open the air flow passage and open the rubber tube. It measures the pressure of air passing through the air flow passage from inside.

When the pin is pressed down by the pressure measurement nozzle, the pressure measurement nozzle must be inserted into the valve without difficulty because the valve is mounted to the outside of the body in a small car or a normal car. Can be. However, in a large vehicle such as a truck, when the rear wheel is a double wheel, the valve of the tire on the inner side of the vehicle body is mounted on the inner side of the vehicle body.

Therefore, the worker is forced to take a very disadvantageous position when inserting the pressure measurement nozzle into the valve, and cannot insert the pressure measurement nozzle into the valve in a good condition, and the pressure measurement nozzle cannot be inserted into the valve. The insertion angle increases, the pin falls down in the valve, and accordingly, the movable valve also tilts in the valve. In such a case, the movable valve may not be able to move smoothly inside the valve, and in the worst case, the movable valve may rub against the inner wall of the valve and cause air leakage.

[0012]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention provides a valve having a cylindrical hollow portion and a sliding guide portion therein. A sliding on-off valve portion having an air discharge hole is arranged on a sliding guide portion of the frame, and an operating valve is arranged on the air injection side of the valve frame adjacent to the sliding on-off valve portion. Due to the internal pressure, the air discharge hole of the sliding on-off valve portion is closed in the sliding guide portion, and the operation of moving the valve frame of the sliding on-off valve portion to the air discharge side through the pressing operation of the operation valve. By using a tire valve in which the air discharge hole is exposed from the sliding guide portion, the tire has excellent durability, has a simple structure, and can be easily maintained and inspected. It is a solution.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2 show a tire valve according to a first embodiment of the present invention.
(B) shows a state where the tire valve is mounted on a tire. The tire valve includes a valve frame A, a valve member B, a cover member 7, and the like. The valve frame A further includes an outer frame member 1 and an inner frame member 2 (see FIG. 4A). The valve member B
Is composed of a sliding opening / closing valve section 3 and an operation valve section 4 (see FIGS. 5B and 5C).

The outer frame member 1 is located on the outermost side of the tire valve of the present invention and is formed in a substantially cylindrical shape. The inside of the outer frame member 1 has a hollow shape penetrating along the axial direction (see FIG. 4A). A circumferential projection 1a is formed along the inner peripheral wall surface toward the center in the diameter direction of the hollow chamber. The circumferential protrusion 1a serves to support an inner frame member 2 described later.

An inner screw portion 1b is formed on the inner peripheral side surface of the outer frame member 1 on the axial air injection side. The inner screw portion 1b, together with the circumferential protrusion 1a, serves to support and fix the inner frame member 2 to the hollow chamber. further,
An outer screw portion 1c is provided on the outer peripheral side surface at one axial end of the outer frame member 1.
Are formed. The outer thread portion 1c serves to attach a cover member 7 described later to the outer frame member 1.

Next, the inner frame member 2 has a shape in which a plurality of cylinders having different diameters are continuously formed on the outer peripheral side surface (see FIGS. 4A and 4B). Inside thereof, a cylindrical hollow portion 2a and a sliding guide portion 2b are respectively formed.
The cylindrical hollow portion 2a and the sliding guide portion 2b have a circular cross section orthogonal to the axial direction, and the inner diameter of the cylindrical hollow portion 2a is larger than the inner diameter of the sliding guide portion 2b. The sliding guide portion 2b is a portion serving to slidably support a sliding on-off valve portion 3 described later.

A fixing cylindrical portion 2c having a maximum diameter is formed on the outer peripheral surface of the cylindrical hollow portion 2a, and an outer screw portion 2d is formed on the outer periphery of the fixing cylindrical portion 2c. Further, a small-diameter cylindrical portion 2e having a smaller diameter than the fixing cylindrical portion 2c is continuously formed along the axial direction from the fixing cylindrical portion 2c, and a small-diameter cylindrical portion 2e is provided between the fixing cylindrical portion 2c and the small-diameter cylindrical portion 2e. The stepped portion is a circumferential locking surface 2f [FIG.
(A), (B) etc.].

A cylindrical hollow portion 2a and a sliding guide portion 2b
An inner peripheral step portion 2g having a step shape is formed at the boundary between. Further, a flange portion 2h is formed at the top of the cylindrical hollow portion 2a. The flange 2h
It has a disk shape (see FIGS. 4A and 4B).

Further, there is an embodiment in which a locked portion 2i is formed on the flange portion 2h. The locked portion 2i
May be formed in a hexagonal shape (see FIG. 7A) or may be formed in a plurality of protrusions [FIG.
(B)). The locked portion 2i is rotated via a tool (spanner or the like) that locks the locked portion 2i, so that the operation of assembling and disassembling the outer frame member 1 and the inner frame member 2 can be easily performed. .

The inner frame member 2 is mounted in the hollow chamber of the outer frame member 1, and the outer screw portion 2d of the inner frame member 2 and the outer frame member 1
[FIG. 1 (A), FIG. 2 (A)]
Etc.]. In addition, a sealing material 8 is disposed between the flange portion 2h of the inner frame member 2 and the top of the outer frame member 1, and the outer frame member 1 and the inner frame member 2 are substantially sealed [FIG. ), FIG. 2 (A), FIG. 4 (A), etc.). The sealing material 8 is a member such as an oil seal.

Next, as described above, the valve member B includes the sliding opening / closing valve portion 3, the operating valve portion 4, and the operating head 4e. In the first embodiment of the present invention, the sliding opening / closing valve portion 3 and the operating valve portion 4 are integrally formed continuously in the axial direction [FIGS. 1 (A) and 2 (A)]. And FIG.
(B) etc.].

The sliding opening / closing valve portion 3 has an air flow passage 3b formed along the axial direction inside a sliding cylindrical portion 3a having a cylindrical outer shape. An air discharge hole 3c is formed so that the air flow passage 3b and the outer peripheral side surface of the sliding cylindrical portion 3a communicate with each other [FIG. 2 (A) and FIG.
(See (B) and (C)).

The air discharge holes 3c are formed perpendicularly to the axial direction of the sliding cylindrical portion 3a, and are formed on respective surfaces facing the diametrical direction of the outer peripheral surface [see FIG. 2 (A)]. ]. Although two air discharge holes 3c are formed in the illustrated embodiment, three or four air discharge holes 3c may be formed, or one air discharge hole may be formed.

The sliding cylindrical portion 3a is slidable on the sliding guide portion 2b of the inner frame member 2, and the air discharge holes 3c enter and exit the sliding guide portion 2b together with the sliding cylindrical portion 3a. When the air discharge hole 3c enters the slide guide portion 2b, the inflow of air from the air discharge hole 3c can be blocked (see FIG. 2A). Then, air can flow in and out while the air discharge holes 3c are exposed from the sliding guide portion 2b [FIG.
(B)).

The air discharge hole 3c is a through hole having a small diameter. The other end in the axial direction of the sliding cylindrical portion 3a is an opening through which the air flow passage 3b communicates with the outside, and a flange 3d is formed around the opening [FIG.
(B)). Further, the discharge side end of the sliding cylindrical portion 3a is closed by a pressed flange portion 3e of another member. The pressed flange portion 3e formed of the separate member is a sliding cylindrical portion 3e.
5A is fixed to one end side in the axial direction of FIG. 7A by a fixing means such as screwing [see FIG. 5C].

The pressed flange portion 3e made of the above separate member
Moves the sliding cylindrical portion 3a of the sliding on-off valve portion 3 to the sliding guide portion 2b.
It is attached after being inserted into. Further, when a packing material 9 is attached to either the pressed flange portion 3e or the air discharge side edge of the slide guide portion 2b, and the packing material 9 blocks the air discharge holes 3c at the slide guide portion 2b. Can be made more reliable.
(A)]. The pressed flange portion 3e is located on the air discharge side of the valve frame A, that is, inside the tire, and is constantly receiving a pressing force due to the tire internal pressure P (see FIG. 2A).

The sliding opening / closing valve portion 3 includes a sliding cylindrical portion 3
a is disposed on the sliding guide portion 2b of the inner frame member 2, whereby the sliding guide portion 2b can slide back and forth along the axial direction (see FIG. 2A). The sliding opening / closing valve portion 3 serves as a stopper for restricting a sliding range of the flange portion 3d and the pressed flange portion 3e.
It is possible to reciprocate within a predetermined range until it comes into contact with the axial edge of b (see FIGS. 2A and 3A).

As a result, in the sliding opening / closing valve portion 3, the air discharge holes 3c formed in the sliding cylindrical portion 3a enter and exit from the sliding guide portion 2b (see FIG. 3B). As described above, the sliding opening / closing valve portion 3 is configured such that the pressed flange portion 3e always receives the tire internal pressure P so that the air discharge hole 3c is formed.
Are closed in the sliding guide portion 2b [see FIG. 2 (A)]. The flange portion 3d of the sliding on-off valve portion 3
An elastic member 12 such as a coil spring is mounted between the inner frame member 2 and the inner peripheral step 2g, but it is not always necessary to mount the elastic member 12.

Next, the operation valve portion 4 has a cylindrical outer shape. An air guide path 4c is formed in the cylindrical portion 4a along the axial direction [FIG.
(A) and FIG. 5 (C)]. An air intake hole 4d is formed so that the outer peripheral side surface of the cylindrical portion 4a communicates with the air guide path 4c. The air intake hole 4d has a cylindrical shape 4
It is orthogonal to the axial direction of a.

The operating valve portion 4 is formed continuously with the flange portion 3d of the sliding opening / closing valve portion 3, and the flange portion 3d is used as a flange of the valve member B.
The air flow passage 3b communicates with the air guide passage 4c of the operation valve unit 4. With this, air is circulated inside the operation valve section 4 and the sliding opening / closing valve section 3 (see FIG. 2A).

The operating valve portion 4 is housed in the cylindrical hollow portion 2a of the inner frame member 2, and a gap is formed between the periphery of the cylindrical portion 4a and the cylindrical hollow portion 2a. The gap serves as an air circulation route as an air circulation gap s [FIGS. 2A, 2B, 3A and 5A.
(A) etc.].

The columnar portion 4a has a substantially oval cross section and flat surfaces 4a at both ends in the diameter direction.
a ₁ and 4a ₁ are formed [FIG. 2 (B), FIG.
(B) etc.]. Due to the flat surfaces 4a ₁ and 4a ₁ , a gap is formed between the cylindrical hollow portion 2a and the columnar portion 4a,
The air flow gap s is formed.

An operation head 4e is provided above the operation valve portion 4.
Are formed. The operation head 4 e is formed integrally with a top portion of the operation valve portion 4. The shape of the operation head 4e is formed in a conical shape [FIG. 2 (A), FIG.
(B) etc.]. Further, as a modified example of the operation head 4e, it may be formed in a hemispherical shape [FIG.
(See (B) and (C)). The operation head 4e serves to open and close the air flow gap s, and is used, for example, when injecting air from an air valve or measuring the air pressure in the tire.

FIG. 8 shows an example used for a bicycle in the first embodiment. Specifically, the air guide path 4c formed in the operation valve section 4 of the valve member B is formed to penetrate the top of the operation valve section 4 along the axial direction. The top portion of the operation valve section 4 is an operation head 4e, and the air injection opening 7a of the cover member 7 is provided.
(See FIG. 8A).

A pin 5 is fixed to the air guide path 4c substantially at a position substantially at the operation head 4e of the operation valve portion 4 (see FIG. 8B). The pin 5 is a portion that comes into contact with a pressing pin 18c of the air injection nozzle 18, which will be described later. The pin 5 is pressed by the pressing of the pressing pin 18c, and the valve member B and the operation valve portion 4 Sliding guide 2
It moves along b.

As a result, the injection air a sent from the air injection nozzle 18 flows into the air injection opening 7a and the air guide path 4c, and the air discharge hole 3c of the sliding on-off valve 3 is opened.
From above into the tube of the tire (see FIG. 8 (C)). This embodiment may use a vehicle specific air injection nozzle 18.

Therefore, even in a place where the air injection device for bicycles is not handled (gas station, dealer, personal car repair shop, etc.), the air injection nozzle 18 for automobile is used.
If you're dealing with it, then you can inflate the tires of your bike.

The air injection opening 7a of the cover member 7
A cover-side sealing member 13 is attached around the [see FIG. 2 (A)]. Further, the cover-side sealing material 13
May be attached to the operation head 4e. The cover member 7 has a cylindrical shape and has an air injection opening 7 at the top.
a is formed. A cylindrical step 7c is formed around the top of the air injection opening 7a (see FIGS. 1A and 2A).

Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, there is an embodiment in which the sliding opening / closing valve portion 3 and the operation valve portion 4 constituting the valve member B are formed of separate members that are independent and separated from each other. The sliding on-off valve portion 3 and the operating valve portion 4 in this embodiment are substantially the same as the valve member B of the first embodiment except that they are separated and independent. 11 and FIG. 12A).

First, with respect to the operation valve section 4, an air guide path 4c having an opening on the air discharge side bottom in the axial direction is formed in the columnar section 4a along the axial direction. An air intake hole 4d is formed so that the outer peripheral side surface of the cylindrical portion 4a communicates with the air guide path 4c. The air intake hole 4
d is perpendicular to the axial direction of the columnar portion 4a [(FIG.
(A) and FIG. 11 etc.).

The operating valve portion 4 is formed with a pressing flange portion 4b, the diameter of which is such that it can slide along the cylindrical hollow portion 2a. Further, the pressing flange portion 4b is in contact with the flange portion 3d of the sliding opening / closing valve portion 3 made of a separate member, and can communicate with each other through both openings of the air guide path 4c and the air flow path 3b. [See FIG. 10 (A)].

That is, air is circulated inside the operation valve section 4 and the sliding opening / closing valve section 3. The operation valve portion 4 is housed in the cylindrical hollow portion 2a of the inner frame member 2,
A gap is formed between the periphery of the columnar portion 4a and the cylindrical hollow portion 2a, and the gap serves as an air flow route s as an air flow route [s FIG.
(See (A) and (B).)

An operation head 4e is provided above the operation valve portion 4.
Are formed. The operation head 4e has a substantially axial shape, is formed in the same direction as the axial direction of the operation valve portion 4, and is formed integrally with the upper portion of the operation valve portion 4 or by means such as press fitting. (A)]. Further, the upper end of the operation head 4e may have a substantially spherical shape. As described in the first embodiment, the operation head 4e slides the operation valve portion 4 and the sliding opening / closing valve portion 3 in the inner frame member 2 to inject air from an air valve, or Used when measuring air pressure in a tire.

The operation head 4e is supported by the guide member 6 and can move along the axial direction [see FIGS. 9B, 10A, 10B, etc. ]. The guide member 6 has a substantially gate-like outer shape, and is formed of a guide top 6a and two legs 6b, 6b. Further, the guide top 6a, the guide hole 6a ₁ is formed [FIG. 11, reference, etc. FIG. 12 (B)].

The opposing surfaces of the legs 6b, 6b are circular.
A clamping surface 6b formed on an arcuate concave surface₁, 6b₁Becomes
And the columnar portion 4a of the operation valve portion 4 has its both holding surfaces.
6b ₁, 6b₁Operating valve unit 4 is moved in the axial direction.
The role of guidance that can have stability when moving
(See FIG. 12C).

The two legs 6b, 6b are fixed to the upper opening of the inner frame member 2. Specifically, concave portions 2a ₁ , 2a ₁ are formed at the upper end of the cylindrical hollow portion 2a of the inner frame member 2 on the diametrically opposed surface of the inner peripheral side surface.
₁ and 2a ₁ , the leg portions 6b and 6b are press-fitted into the guide members 6 and
Is fixed to the inner frame member 2 [FIG. 10 (A),
(B)). Said operating head 4e in the guide hole 6a ₁
Is inserted.

A cover member 7 is attached to the end of the outer frame member 1 on the air injection side (see FIGS. 9A and 10A). The cover member 7 is formed in a cylindrical shape, and one end in the axial direction becomes an air injection side, and an air injection opening 7a is formed. An inner screw portion 7b is formed on the inner peripheral surface of the cover member 7, and the inner screw portion 7b is
The cover member 7 is screwed with the outer thread portion 1c of the outer frame member 1c.
It is designed to be adhered to. The cover member 7 protects the outer frame member 1 and serves as a guide when the air injection nozzle 18 is inserted into the outer frame member 1.

As a modified example of the operation valve portion 4, as shown in FIG. 14A, an air guide passage 4c and an air intake hole 4d are not formed, and a shaft is provided on the outer peripheral side surface of the pressing flange portion 4b. vertical air guiding groove 4b ₁ is formed along the direction, the bottom surface of the pressing flange portion 4b, the vertical air guiding groove 4b ₁
Sometimes the lateral air guiding groove 4b ₂ continuous to is formed. 14 (B) and (C) are enlarged perspective views of a main part, and FIG.
(D) is an enlarged sectional view of a main part.

[0049] Then, those in the axial direction longitudinally by an air guide groove 4b ₁ enables air flow, also the operation valve 4 is in sliding-off valve unit 3 between the cylindrical hollow portion 2a and the pressing flange 4b in a state in which contact has, next to the air guide grooves 4b ₂ and the communicates air flow passage 3b, in which the air distribution channels are opened between thereby the air flow gap portion s and the air discharge hole 3c [14 (E)).

In the second embodiment, as shown in FIG. 15 (A), it is suitable as a double-wheel type tire valve which is found on the rear wheel of a truck or the like. When the air injection nozzle 18 is inserted to perform air injection or air pressure check on the inner tire of such a double wheel, the operator is in a position where it is difficult for the operator to visually recognize the tire valve.

For this reason, there is a case where the tire valve is liable to fall down. Conventionally, the valve member in the tire valve is placed in an unreasonable position, and rubbing occurs inside. In the worst case, There was a risk of damaging the tire valve (see FIG. 15B).

Therefore, since the sliding opening / closing valve portion 3 of the valve member B and the operation valve portion 4 are separated and independent, the worker performs the air injection work in a disadvantageous posture, and even if the operation valve portion 4 Even if it falls down in the valve frame A, the inclination of the fall is only transmitted to the operation valve portion 4 and not transmitted to the sliding opening / closing valve portion 3, and the sliding opening / closing valve portion 3 slides in a favorable state in the axial direction. [FIG. 15
(C)). Therefore, even if the air injection work is performed in an unreasonable posture, the members constituting the tire valve are hardly affected, and the stable and reliable air injection work can be performed.

Next, a third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the operation valve portion 4, the operation head 4e, and the guide member 6 are removed from the constituent members of the second embodiment described above, and an air inlet 11 is mounted as a substitute for these components. 16 and FIGS. 17A and 17B).

The air inlet 11 has a disc-shaped flange 11b.
Tube-shaped air injection section 1 so as to penetrate the center of
1a is formed (see FIG. 16B). The disk flange 11b has a diameter enough to be accommodated in the cover member 7. And the disk flange 11b
Is fixed by a structure sandwiched between the peripheral edge of the outer frame member 1 on the air injection side in the axial direction and the air injection opening 7a of the cover member 7 (see FIGS. 16 and 17A).

The axial air discharge side of the air injection portion 11a is configured to enter the cylindrical hollow portion 2a of the inner frame member 2, and the end of the sliding on-off valve portion 3 is always in contact with the axial air injection side end. And the separated state, and the sliding range of the sliding on-off valve portion 3 is secured (see FIG. 18C). The third embodiment is suitable mainly for use in vehicles of a bicycle type or a model that does not particularly need to check the air pressure.

[0056] Figure 19 shows a modification of the air injection mouthpiece 11 in the third embodiment, the bottom portion 11d ₁ of the cylindrical portion 11d, the are air injection portion 11a is formed, the more its center A fixed shaft 11c is formed [FIG.
9 (C)]. Further, the bottom 1 of the air inlet 11
1d ₁ is fixed to the cover member 7 by the fastening member 11e (see FIG. 19B). Then, the air injection nozzle 18
Is fixed on the cylindrical portion 11d, the fixed shaft 11c
As a result, the pressing pin 18c of the air injection nozzle 18 is pressed, and the injection air a is sent from the air injection nozzle 18 (see FIG. 19A).

In the first to third embodiments, the outer frame member 1 and the inner frame member 2 of the valve frame A may be formed integrally instead of being separate members. That is, the outer frame member 1 and the inner frame member 2 are formed continuously by cutting from a work (raw material). Thereby, the valve frame A
Is a single component, and the total number of parts including the valve can be reduced.

A rubber coating 10 may be formed around the outer frame member 1 of the valve frame A. The tire valve is mounted on a wheel or the like of the tire via the film portion 10. Further, a mounting flange portion 1d is formed on the outer frame member 1, and the mounting flange portion 1d is embedded in and fixed to the tire tube (see FIGS. 1 and 2).

In the first to third embodiments, the sealing member 8 is also provided between the circumferential locking surface 2f of the inner frame member 2 and the circumferential protrusion 1a of the outer frame member 1. It may be attached [see FIGS. 8 (A), 9 (A), 10 (A), etc.]. Further, in the above embodiment, the seal member 8 may be disposed between the outer frame member 1 and the inner frame member 2 via the seal member cover 14 (see FIG. 20A).

The sealing material cover 14 has a ring shape with a substantially inverted L cross section and covers the inner peripheral surface of the sealing material 8 (see FIG. 20B). By using the sealing material cover 14, when the sealing material 8 is mounted, damage such as threading of the sealing material 8 can be prevented, and the sealing material 8 can be protected. It can be compressed uniformly over the entire circumference (see FIG. 20C).

FIG. 21 shows an embodiment in which an auxiliary spring 16 or a magnetic body 17 is used in addition to the fact that the valve member B is pressed by the tire internal pressure P.
The auxiliary spring 16 is provided at the lower end of the inner frame member 2 with the spring housing 1.
5 to press the sliding opening / closing valve section 3 [see FIGS. 21 (A) and 21 (B)]. The magnetic body 17 is mounted on the pressed flange portion 3e of the sliding on-off valve portion 3 and is always magnetically attachable to the lower end of the inner frame member 2 (see FIGS. 21C and 21D). .

[0062] The lower surface side of the pressed flange portion 3e at the air discharge side of the slide-off valve unit 3 is also that the pressure receiving surface 3e ₁ was a flat recess shape is formed [FIG. 7
(C)). Pressure receiving surfaces 3e ₁ is formed into a flat recess shape. This makes many receptive volume of air in the tire, the pressure receiving surface 3e ₁ can effectively act a pressing force due to the tire internal pressure P.

In the air injection nozzle 18, a pressing member 18b such as a coil spring is mounted in a nozzle frame 18a, and a pressing pin 18c is always pressed by the pressing member 18b.
8a is elastically urged outward and protrudes. When the pressing pin 18c is retracted inside the nozzle frame 18a, the injection air a is blown out. Then, when the pressing pin 18c presses the operating head 4e of the operating valve portion 4, the pressing pin 18c and the operating valve portion 4 move respectively, and the injected air a can be sent into the tire.

[0064]

The tire valve according to the first embodiment is mainly for automobiles (including motorcycles). Normally, the pressed flange portion 3e of the sliding opening / closing valve portion 3 slidably disposed in the sliding guide portion 2b in the valve frame A receives the pressing force of the tire air pressure P, and the air discharge hole is formed. 3c is hidden in the sliding guide portion 2b, whereby the air discharge hole 3c is closed (see FIG. 1A).

That is, the cutoff state of the air flow of the tire valve is maintained by the tire internal pressure P. Further, the presence of the packing material 9 at the contact point between the pressed flange portion 3e and the edge of the sliding guide portion 2b on the air discharge side can further enhance the confidentiality.

Next, when air is injected into the tire from the tire valve, an air injection opening 7a is formed in the cover member 7 attached to the valve frame A, and the air injection opening 7a is formed in the air injection opening 7a. The air injection nozzle 18 of the air compressor device is inserted in a substantially confidential state. When the air injection nozzle 18 is inserted into the air injection opening 7a,
The pressing pin 18c pushes the operation head 4e of the operation valve portion 4 from the air injection side of the valve frame A to the air discharge side.

Then, together with the pushed-in operation head 4e, the operation valve portion 4 and the sliding opening / closing valve portion 3 move toward the air discharge side, and the air discharging hole formed in the sliding opening / closing valve portion 3 is formed. 3c is exposed from the sliding guide 2b. Here, the state in which the air discharge hole 3c is exposed from the sliding guide portion 2b means that the sliding cylindrical portion 3a of the sliding opening / closing valve portion 3 slides in the axial direction along the sliding guide portion 2b and slides. This means that the air discharge hole 3c hidden by the guide portion 2b appears.

Further, an air flow gap s exists between the cylindrical hollow portion 2a of the valve frame A and the operation valve portion 4, and the sliding opening / closing valve portion 3 has an air flow passage 3b and an air discharge passage 3b. Hole 3c
Are formed in the operation valve portion 4, and an air guide path 4c and an air intake hole 4d are formed. Therefore, the valve frame A
From the air injection side of the air flow gap s, air intake hole 4d,
The air guide path 4c, the air flow path 3b, and the air discharge hole 3c communicate with the inside of the tire so that air can flow.

The air inlet hole 4d extends from the air flow gap s.
The injection air a flows into the air guide path 4c via the air passage. The air that has flowed into the air guide path 4c is
Flows into the air flow passage 3b of the sliding opening / closing valve portion 3 adjacent in the axial direction, and the injected air a enters the tire from the air flow passage 3b through the air discharge hole 3c [FIG.
(B)).

When checking the tire air pressure, the air injection nozzle 18 of the measuring instrument is simply inserted into the air injection opening 7a of the tire valve and the operating head 4e is pushed in. The air discharge hole 3c of the sliding opening / closing valve portion 3 communicates with the air, and the air flows backward from the inside of the tire, so that the pressure P in the tire can be measured and checked. The operation of the second embodiment is substantially the same as that of the first embodiment. The flow of the injection air a in the second embodiment is shown in FIG.
(A) and (B) are shown.

Next, the tire valve of the third embodiment is mainly for a bicycle. In this embodiment, an air inlet 11 is provided instead of the operation valve section 4. The operation of the sliding on-off valve portion 3 is substantially the same as that of the first embodiment, and the air discharge hole 3c is always closed by the pressing force of the tire internal pressure P.

In the air injection, the air injection nozzle 18 is inserted into the air injection base 11, and the pressure of the injected air exceeds the tire internal pressure P, so that the sliding opening / closing valve portion 3 moves to the air discharge side, and the air discharge is performed. The hole 3c is exposed from the slide guide 2b. Thereby, the air inlet 11 and the air discharge hole 3c
And the inside of the tire communicate with each other, and the injected air flows into the tire (see FIG. 18C).

[0073]

According to the first aspect of the present invention, the sliding opening and closing of the sliding guide portion 2b of the valve frame A having the cylindrical hollow portion 2a and the sliding guide portion 2b therein has the air discharge hole 3c. A valve section 3 is disposed, and an operation valve section 4 is disposed adjacent to the sliding opening / closing valve section 3 on the air injection side of the valve frame A. The air discharge hole 3c is in a closed state in the slide guide portion 2b, and the air is moved by the operation of moving the valve frame A of the slide opening / closing valve portion 3 to the air discharge side through the pressing operation of the operation valve portion 4. By using a tire valve in which the discharge hole 3c is exposed from the sliding guide portion 2b, it is possible to secure durability and secure a stable air pressure.

With respect to the above effect, the sliding opening / closing valve portion 3 is closed in the sliding guide portion 2b by the tire internal pressure P. In the present invention, the elastic member such as a spring as in the conventional type is used. Not required. Therefore, inconveniences such as deterioration due to long-term use as seen in the spring use type never occur in the present invention. Further, the structure is simple, the number of components is reduced, and maintenance and management can be easily performed.

Next, a second aspect of the present invention relates to a valve frame A in which a cylindrical hollow portion 2a and a sliding guide portion 2b are continuously formed in the axial direction, and an axial end portion of the sliding cylindrical portion 3a. Has an air discharge hole 3c on the outer peripheral side surface thereof, and has flange portions 3d and 3e at both axial ends of the sliding cylindrical portion 3a, so that the air discharge hole 3c can enter and exit the sliding guide portion 2b. Opening / closing valve portion 3 slidably disposed as described above, an operation valve portion 4 disposed in the cylindrical hollow portion 2a adjacent to the sliding opening / closing valve portion 3 in the axial direction, and a valve frame. A operation head 4e formed at the top of the operation valve unit 4 toward the air injection side of A, and a cover member formed at the top with an air injection opening 7a normally closed by the operation head 4e 7, an air flow gap s through which air can flow is formed between the cylindrical hollow portion 2a and the operation valve portion 4. In addition, the tire valve having the air flow gap s and the air discharge hole 3c of the sliding on-off valve portion 3 communicates with each other, so that the structure is simple, maintenance, durability and manufacturability are excellent, and Work such as inspection can be performed extremely easily.

The effect is described in detail below.
The cylindrical hollow portion 2a and the sliding guide portion 2b are formed continuously in the axial direction, and the sliding opening / closing valve portion 3 has an air discharge hole 3c on the outer peripheral side surface at the axial end of the sliding cylindrical portion 3a. The sliding cylindrical portion 3a has flange portions 3d and 3e at both ends in the axial direction, and the air discharge hole 3c is configured to be able to enter and exit the sliding guide portion 2b.

Further, the operating valve portion 4 is provided with the sliding opening / closing valve portion 3.
The cylindrical hollow portion 2 of the valve frame A is axially adjacent to
a. An operation head 4e is formed on the top of the operation valve portion 4, and the operation head 4e is connected to the valve frame A
Towards the air injection side. Further, the cover member 7 having the air injection opening 7a formed at the top portion is structured to be normally closed by the operation head 4e. And
An air flow gap s through which air can flow is formed between the cylindrical hollow portion 2a and the operation valve portion 4, and the air flow gap s and the air discharge hole 3c of the sliding on-off valve portion 3 are formed. Communicating.

Thus, normally, the pressed flange portion 3e of the sliding opening / closing valve portion 3 is pressed by the tire internal pressure P, and the air discharge hole 3c enters the sliding guide portion 2b to be closed. In addition, the cover member 7 is provided with an air injection opening 7a, and the air injection opening 7a is closed by the operation head 4e to shut off the air inflow.

That is, the air flow is cut off by the tire internal pressure P, and an elastic member such as a spring as in the conventional type can be eliminated. Therefore, the number of parts can be reduced and the structure can be simplified.

Next, a third aspect of the present invention provides a valve frame A in which a cylindrical hollow portion 2a and a sliding guide portion 2b are continuously formed in the axial direction, and an axial end portion of the sliding cylindrical portion 3a. Has an air discharge hole 3c on the outer peripheral side surface thereof, and has flange portions 3d and 3e at both axial ends of the sliding cylindrical portion 3a, so that the air discharge hole 3c can enter and exit the sliding guide portion 2b. Opening / closing valve portion 3 slidably disposed as described above, an operation valve portion 4 disposed in the cylindrical hollow portion 2a adjacent to the sliding opening / closing valve portion 3 in the axial direction, and a valve frame. An operation head 4e formed on the operation valve portion 4 toward the air injection side of A, and a guide member 6 that slidably supports the operation head 4e,
An air flow gap s through which air can flow is formed between the cylindrical hollow portion 2a and the operation valve portion 4, and the air flow gap s is formed.
And the air discharge hole 3c of the sliding opening / closing valve portion 3 communicate with each other, so that the operation of the operating valve portion 4 and the sliding opening / closing valve portion 3 in the valve frame A is stabilized. The operation can be made more reliable.

The above effect will be described in detail.
Since it is slidably supported by the guide member 6, the sliding operation of the operation head 4e becomes extremely stable. Thereby, the operation of the operation valve section 4 and the sliding on-off valve section 3 can also be stabilized.
It is possible to prevent tilting or falling down in the axial direction in the inside.

Next, according to a fourth aspect of the present invention, in the first, second or third aspect, the valve frame A is supported and fixed inside the outer frame member 1 which can be separated from each other. The cylindrical hollow portion 2a and the sliding guide portion 2b are formed as a tire valve formed in the inner frame member 2 so that maintenance and management can be performed efficiently. it can.

The valve frame A is composed of an outer frame member 1 and an inner frame member 2 so as to be separable from each other. The structure is arranged on the member 2. As a result, during maintenance and management, by separating the outer frame member 1 and the inner frame member 2,
The replacement operation of the sliding opening / closing valve portion 3 or the operation valve portion 4 or the like whose service life has elapsed can be simplified, and an efficient operation can be realized.

Next, a fifth aspect of the present invention is directed to the first, second and third aspects.
In 3 or 4, the sliding on-off valve portion 3 and the operation valve portion 4 are formed as a tire valve serving as a valve member B integrally formed, so that the number of parts is reduced and the structure is further improved.
It can be very simple.

Next, the invention of claim 6 is directed to claims 1, 2,
3 or 4, the sliding on-off valve portion 3 and the operation valve portion 4 are formed as separate tire valves to provide a durable and stable air pressure. Air injection can be performed satisfactorily even in an air injection operation in a proper state.

The above-mentioned effect will be described in detail. In the valve frame A, two members, that is, a sliding opening / closing valve portion 3 and an operation valve portion 4 are arranged so as to be slidable in the axial direction. An operation head 4e is mounted on the operation valve unit 4. Therefore, for example, many tires supporting a truck bed are of a double-wheel type, and the tire valve of such a double-wheel inner tire is usually mounted facing the inside of the vehicle body [FIG.
5 (A), (B)].

When the air injection nozzle 18 is inserted into such a two-wheeled inner tire for performing air injection or air pressure check, the worker is in a position where it is difficult to see the tire valve, and the tire valve may fall down. Conventionally, the valve member in the tire valve is placed in an unreasonable position, causing rubbing inside, and in the worst case, the tire valve may be damaged.

However, in the present invention, the sliding opening / closing valve portion 3 and the operation valve portion 4 are arranged in the valve frame A as described above, and the operation head portion 4e is mounted on the operation valve portion 4; Even if the operator performs the air injection work in a disadvantageous position and the operation head 4e is inclined with respect to the axial direction of the valve frame A, the operation head 4
The inclination caused by e is only the operation valve section 4, and the sliding opening / closing valve section 3 can slide in the axial direction independently of the operation valve section 4 (see FIG. 15C). Therefore, even if the air injection work is performed in an unreasonable posture, the members constituting the tire valve are hardly affected, and the stable and reliable air injection work can be performed.

Next, according to a seventh aspect of the present invention, a sliding opening / closing valve portion 3 having an air discharge hole 3c is arranged in a sliding guide portion 2b formed inside a valve frame A, and the tire internal pressure is always maintained. The air discharge hole 3c is closed in the slide guide portion 2b by P, and the air discharge hole 3c is moved to the air discharge side of the valve frame A only when air is injected so that the air discharge hole 3c is closed. With the tire valve exposed from the sliding guide portion 2b, the structure can be further simplified,
Bicycles that do not need to check tire pressure P,
It is suitable for vehicle types such as rear cars.

The air discharge hole 3c of the sliding on-off valve portion 3
Is closed in the sliding guide portion 2b by the tire internal pressure P, and no elastic member such as a spring is used in the configuration. Therefore, no inconvenience such as deterioration due to long-term use of the spring occurs in the present invention, and the structure is simple, the number of components is reduced, and maintenance and management can be easily performed.

Next, a valve frame A in which a cylindrical hollow portion 2a and a sliding guide portion 2b are continuously formed in the axial direction, and an axial end portion of the sliding cylindrical portion 3a. Has an air discharge hole 3c on the outer peripheral side surface thereof, and has flange portions 3d and 3e at both axial ends of the sliding cylindrical portion 3a, so that the air discharge hole 3c can enter and exit the sliding guide portion 2b. Opening / closing valve section 3 slidably arranged as described above, and air injection section 11
a, and an air inlet 11 attached to the top portion of the valve frame A. The air injection side of the valve frame A communicates with the air discharge hole 3c of the sliding on-off valve portion 3. With this tire valve, it is possible to provide a simple structure with a small number of constituent members as a dedicated valve for inflating a bicycle.

Next, the invention of claim 9 is directed to claim 7 or 8
In the above, the valve frame body A includes an outer frame member 1 that can be separated from each other, and an inner frame member 2 that is supported and fixed inside the outer frame member 1.
And the cylindrical hollow portion 2a and the sliding guide portion 2
b is a tire valve formed on the inner frame member 2, so that when the valve frame A is disassembled and maintenance work is performed, it can be performed extremely efficiently.

Next, the invention of claim 10 relates to claims 7 and 8
Or 9, the air inlet 11 has a fixed shaft 11
c is provided, and a cylindrical valve 11d is formed so as to surround the periphery of the fixed shaft 11c, so that the cylindrical portion 11d is suitable for connecting the air injection nozzle 18 and the fixed shaft 11c Is formed, which is suitable for inflating a bicycle or the like, and can easily perform the work.

Next, the invention of claim 11 relates to claim 2,
In 7, 8, 9 or 10, the lower surface of the flange portion 3e of the air protruding side of the slide-off valve unit 3 is pressure receiving surface 3e ₁ was a flat recess shape is formed Pressure receiving surface 3e ₁
Since has a flat recess shape, the more receptive amount of air in the tire, the pressure receiving surface 3e ₁ can effectively act a pressing force due to the tire internal pressure P.

[Brief description of the drawings]

FIG. 1A is a partially cutaway perspective view of a first embodiment. FIG. 1B is a perspective view of a tire using the present invention.

2A is a longitudinal sectional side view of the first embodiment. FIG. 2B is a sectional view taken along the line X ₁ ─X _{1 in} FIG. 2A.

FIG. 3A is a vertical side view showing an air inflow state in the first embodiment. FIG. 3B is an enlarged vertical side view of a main part of FIG.

FIG. 4A is an exploded longitudinal side view of a valve frame body, and FIG. 4B is a perspective view of an inner frame member partially cut away.

5A is a perspective view of a main part showing a configuration of an inner frame member and an operation valve portion. FIG. 5B is a perspective view of the operation valve portion. FIG.

6A is a vertical sectional side view showing a modification of the valve member in the first embodiment. FIG. 6B is a perspective view of the valve member. FIG. 6C is a vertical sectional side view of a main part of FIG.

FIG. 7A is a perspective view of a main part showing an embodiment of a locked part. FIG. 7B is a perspective view of a main part showing another embodiment of a locked part. The main part longitudinal side view showing

8 (A) is a vertical side view of a type in which the first embodiment is used for both automobiles and bicycles. FIG. 8 (B) is a vertical side view showing an air inflow state of FIG. 8 (A). Sectional view

FIG. 9A is a partially cutaway perspective view of the second embodiment, and FIG. 9B is a perspective view of a main part of FIG. 9A.

[10] (A) is a longitudinal side view (B) is X ₂ ─X ₂ cross-sectional view taken along (C) is X ₃ ─X ₃ arrow sectional view of the second embodiment (D) is X ₄ ─X ₄ cross-sectional view taken along (E) is X ₅ ─X ₅ sectional view taken along the line

FIG. 11 is an exploded longitudinal side view of the second embodiment.

FIG. 12A is an exploded perspective view of a part of the second embodiment, in which FIG. 12B is an exploded perspective view of a main part of FIG.

13A is an operation diagram showing the flow of the injection air according to the second embodiment. FIG. 13B is an operation diagram showing the flow of the injection air viewed from another angle in FIG.

14A is a perspective view of an example of an operation valve section in the second embodiment. FIG. 14B is an enlarged perspective view of a main part of FIG. 14A, and FIG. 14C is a view from another direction of FIG. Perspective view (D) is an enlarged vertical cross-sectional side view of a main part of (B). (E) is a vertical cross-sectional side view showing an air circulation state.

15A is a schematic view showing an air check of the tire internal pressure. FIG. 15B is an enlarged cross-sectional view of a main part of FIG. 15A, and FIG. 15C is an enlarged cross-sectional view of a main part of FIG.

FIG. 16 is a perspective view showing a partial cross section of the third embodiment.

17A is a longitudinal sectional side view of the third embodiment, and FIG. 17B is an exploded perspective view of a main part of FIG.

18A is a perspective view of a main part of the third embodiment, FIG. 18B is a perspective view of a main part of the third embodiment, and FIG. 18C is an operation view showing a flow of injected air of the third embodiment in FIG.

19A is a vertical sectional side view showing a modification of the air inlet according to the third embodiment. FIG. 19B is a vertical sectional side view of a main part of FIG. Side view

20A is a longitudinal sectional side view showing a mounting structure of a sealing material, FIG. 20B is an enlarged longitudinal sectional side view of a main part of FIG. 20A, and FIG.

21A is a longitudinal sectional side view of a main part of an embodiment using an auxiliary spring. FIG. 21B is a longitudinal sectional side view of a main part in which an air discharge hole is exposed in FIG. (D) is a vertical sectional side view of a main part in which the air discharge hole is blocked in (C).

[Explanation of symbols]

A: Valve frame P: Tire pressure in the air s: Air flow gap 1: Outer frame member 2: Inner frame member 2a: Cylindrical hollow portion 2b: Sliding guide portion 3: Sliding open / close valve portion 3a: Sliding cylinder Portion 3c Air discharge hole 3d Flange portion 3e Pressed flange portion 3e ₁ Pressure receiving surface 4 Operating valve portion 4e Operating head 6 Guide member 7 Cover member 7a Air injection opening 11 Air Injection gold

Claims (11)

[Claims] 1. A sliding on-off valve having an air discharge hole is disposed on a sliding guide of a valve frame having a cylindrical hollow portion and a sliding guide therein. An operation valve portion is disposed adjacent to the air inlet side of the valve frame, and the air discharge hole of the sliding on-off valve portion is normally closed in the sliding guide portion due to the tire internal pressure, and the operation valve portion is normally closed. A tire valve, wherein an air discharge hole is exposed from the slide guide portion by a movement operation of the valve frame of the slide opening / closing valve portion to the air discharge side through the pressing operation of (1). 2. A valve frame in which a cylindrical hollow portion and a sliding guide portion are continuously formed in the axial direction inside, and an air discharge hole on an outer peripheral side surface at an axial end of the sliding cylindrical portion, and A sliding on / off valve portion having flange portions at both ends in the axial direction of the sliding cylindrical portion and slidably disposed so that the air discharge holes can enter and exit the sliding guide portion; An operation valve portion arranged in the cylindrical hollow portion adjacent to the on-off valve portion in the axial direction, an operation head formed at the top of the operation valve portion toward the air injection side of the valve frame, A cover member having an air injection opening, which is always closed by the operation head, formed at the top,
An air flow gap that allows inflow of air is formed between the cylindrical hollow section and the operation valve section, and the air flow gap and the air discharge hole of the sliding opening / closing valve section communicate with each other. Features tire valve. 3. A valve frame in which a cylindrical hollow portion and a sliding guide portion are continuously formed in the axial direction inside, and an air discharge hole on an outer peripheral side surface at an axial end of the sliding cylindrical portion, and A sliding on / off valve portion having flange portions at both ends in the axial direction of the sliding cylindrical portion and slidably disposed so that the air discharge holes can enter and exit the sliding guide portion; An operating valve portion disposed in the cylindrical hollow portion adjacent to the opening / closing valve portion in the axial direction; an operating head formed on the operating valve portion toward an air injection side of a valve frame; A guide member slidably supporting the portion, and an air flow gap through which air can flow is formed between the cylindrical hollow portion and the operation valve portion, and the air flow gap and the sliding opening / closing portion are formed. A tire valve characterized in that it communicates with an air discharge hole of a valve portion. 4. The cylinder according to claim 1, 2 or 3, wherein the valve frame comprises an outer frame member which can be separated from each other, and an inner frame member supported and fixed in the outer frame member. A tire valve, wherein the hollow part and the sliding guide part are formed on an inner frame member. 5. The tire valve according to claim 1, wherein the sliding opening / closing valve portion and the operation valve portion are formed as a valve member B integrally formed. 6. The tire valve according to claim 1, wherein the sliding opening / closing valve portion and the operation valve portion are formed as separate members. 7. A sliding opening / closing valve portion having an air discharge hole is disposed in a sliding guide portion formed inside the valve frame, and the air discharge hole is normally closed in the sliding guide portion due to the tire internal pressure. Wherein the sliding opening / closing valve portion is moved to the air discharging side of the valve frame only when air is injected so that an air discharge hole is exposed from the sliding guide portion. 8. A valve frame in which a cylindrical hollow portion and a sliding guide portion are continuously formed in the axial direction inside, and an air discharge hole on an outer peripheral side surface at an axial end of the sliding cylindrical portion, and A sliding on-off valve portion having flange portions at both axial ends of the sliding cylindrical portion and slidably disposed so that the air discharge holes can enter and exit the sliding guide portion; And having an air injection mouth mounted on the top portion of the valve frame,
A tire valve, wherein an air injection side of the valve frame communicates with an air discharge hole of the sliding opening / closing valve portion. 9. The cylindrical hollow body according to claim 7, wherein the valve frame comprises an outer frame member which can be separated from each other, and an inner frame member supported and fixed in the outer frame member. A tire valve, wherein the portion and the sliding guide portion are formed on an inner frame member. 10. The tire valve according to claim 7, wherein the air inlet is provided with a fixed shaft, and a cylindrical portion is formed so as to surround the periphery of the fixed shaft. 11. The method according to claim 2,3,4,5,6,7,8,
9. The tire valve according to 9 or 10, wherein a flat recessed pressure receiving surface is formed on the lower surface side of the flange portion on the air projecting side of the sliding on-off valve portion.