JPH0669539U - Air valve fixed to the wheel - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to fix to wheels with different shapes. [Composition] A nipple and a valve tube are provided. The valve tube is flexibly connected to the nipple via an airtight ball joint. With the nipple fixed to the wheel, the valve tube is connected so that it can be tilted with respect to the central axis of the nipple. [Effect] The valve tube can be tilted in a direction inclined with respect to the center line of the nipple and can be rotated, so that the valve tube can be oriented freely. Therefore, it can be used as a conventional linear air valve, L valve, and rotatable L valve, and can be commonly used for various wheels without special design.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to an air valve fixed to a wheel of an automobile and used for injecting air into the wheel.

[0002]

[Prior art]

 The conventional air valve has a built-in check valve (not shown) to prevent the injected air from leaking, and a collar is provided on the way. A male screw is provided on the part protruding from the tsuba to the rear end. To fix the air valve of this structure to the wheel, the screw part at the rear end is passed through the mounting hole of the wheel. A nut is screwed into the threaded portion that penetrates the wheel, and the nut and collar are used to pinch the wheel. The nut and tsuba sandwich a rubber-like elastic packing to prevent air leakage.

There are various types of wheels to which the air valve of this structure is attached. Particularly in recent years, aluminum wheels have become widespread, and wheels of various designs have come to be used. A wheel with a simple structure can use a straight air valve to inject air into the wheel. Depending on the shape of the wheel, an L valve that is bent in the middle is used. The L valve has the structure shown in FIG. 1 as described in Japanese Utility Model Laid-Open No. 1-16902. In the L valve shown in this figure, when a linear air valve is used, a part of the wheel is in the way and air cannot be injected. The L valve is bent so that the wheel does not get in the way when injecting air. The L valve is bent so that the wheel does not get in the way when injecting air, but the shape needs to be changed when the shape of the wheel changes. Therefore, it is necessary to manufacture the L valve in accordance with each wheel. Therefore, it is necessary to manufacture air valves of various shapes according to the wheel, which requires a great deal of time and effort to manage the parts and the parts, and the cost of the air valve is high. In addition, specially shaped air valves manufactured for the wheel make maintenance of the wheel extremely difficult. This is because it is not easy to replace a defective air valve. For example, a car repair shop cannot store a specially shaped air valve, and if the air valve fails on the road, it cannot be replaced. Therefore, it may be in a very troubled state.

By the way, as an air valve for a wheel in which two tires are arranged in a double arrangement, an air valve whose direction can be changed by 180 degrees has been developed (Japanese Utility Model Laid-Open No. 2-126902). The air valve described in this publication has the structure shown in FIG. 2 and is composed of a nipple and a valve tube. The nipple is semi-radially fixed to the tube or wheel. The valve tube is hermetically connected to the nipple for rotation.

[0005]

[Problems to be solved by the device]

 The air valve shown in this figure can reverse the direction of the valve tube by rotating the valve tube 180 degrees. For this reason, there is a feature that it can be easily infused into both tires by fixing them to the inner tires and the outer tires that are mounted in double. For example, the valve pipe of the air valve fixed to the outer tire is oriented in the direction shown by the solid line in FIG. 1, and the valve pipe of the air valve fixed to the inner tire is oriented in the direction indicated by the chain line. The wheel with the air valve of this structure fixed can be used for both the inner tire and the outer tire that are double mounted by rotating the valve tube 180 degrees.

In the air valve of this structure, the direction of the valve pipe can be changed, but since the valve pipe is rotated in the horizontal plane, the inclination angle of the valve pipe cannot be changed. Therefore, it cannot be conveniently used by being fixed to wheels of various shapes. In particular, it cannot be mounted on a wheel that has an air valve mounting part that is inclined. Nor can it be used in place of a straight air valve. Therefore, although it can be fixed to a specific wheel, it cannot be used on a wheel having a complicated shape. In particular, in order to fix the inner surface of the wheel by inclining it at a predetermined angle, it is necessary to change the bending angle of the valve pipe bent at 90 degrees. Therefore, in the air valve of this structure, as with the L valve, it is necessary to prepare a plurality of valve pipes corresponding to the wheel, and a single-shaped air valve cannot be mounted on a wide variety of wheels.

This invention was developed for the purpose of preventing these adverse effects. The important purpose of this device is to adapt to various design wheels, fix it to wheels with different shapes and inject air easily and easily, yet it is convenient for parts management and repair. It is to provide an air valve that is fixed to the wheel.

[0008]

[Means for Solving the Problems]

 The air valve fixed to the wheel of the present invention has the following structure in order to achieve the above-mentioned object. The air valve of the present invention comprises a nipple fixed to the wheel and a valve tube hermetically connected to the nipple. The valve tube has a built-in check valve inside.

Further, in the air valve of the present invention, the valve tube is flexibly connected to the nipple via the airtight ball joint. With the nipple fixed to the wheel, the valve tube is connected so that it can be tilted with respect to the central axis of the nipple. By inclining the valve pipe with respect to the nipple, air can be injected from any direction.

[0010]

[Action]

 The air valve 1 of the present invention can inject air by tilting the valve tube 9 with respect to the central axis of the nipple 8 and bending it in any direction. The valve tube 9 is bent at an angle such that a part of the wheel 4 is not obstructed when it is attached to the wheel 4 or when it is attached to the wheel 4 to inject air. The bent valve tube 9 is hermetically connected to the nipple 8. Therefore, the air valve 1 of the present invention can fix the same thing and inject air even if the shape of the wheel 4 changes. In other words, it has the feature that it can be fixed to various wheels in an optimal state.

Further, in the air valve 1 of the present invention, the valve tube 9 can be bent to adjust the wheel balance. This is because the center of gravity can be moved by bending the valve tube 9. It is also possible to improve the wheel balance by bending the valve tube 9 to a position where the wheel 4 is not in the way, injecting air, and then bending the valve tube 9 in a direction in which the balance of the wheel 4 is improved.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. However, the embodiments shown below exemplify an air valve for embodying the technical idea of the present invention, and the air valve of the present invention has the shape, structure, arrangement, etc. of the constituent parts described below. It's not something specific. The air valve of the present invention can be modified in various ways within the scope of the utility model registration claim.

Further, in this specification, in order to facilitate understanding of the scope of the utility model registration claim, the numbers corresponding to the members shown in the embodiment are referred to as "utility model registration claim column" and "function column. , And "members for solving the problems" are added. However, the members indicated in the claims for utility model registration are not specified as the members of the embodiment.

The air valve 1 shown in FIG. 2 includes a valve tube 9, a nipple 8 that foldably connects the valve tube 9 via a ball joint, and a seat that holds the valve tube 9 and the nipple 8 in an airtight manner. And a seal nut 11 for fixing the seal member 10.

Although not shown, the valve tube 9 has a tubular shape having a built-in check valve therein. The check valve can inject air, but is built in the valve pipe 9 so that the injected air does not leak. The check valve can be the one used in the current air valve 1 or any structure developed in the future. The valve tube 9 has a ball joint structure and is airtightly connected to the nipple 8. Therefore, the valve tube 9 has a sphere 9A at the rear end. An air hole 12 is provided at the center of the sphere 9A.

The nipple 8 is airtightly fixed to the wheel 4. The nipple 8 shown in FIG. 3 has a stepped portion 8A in which the rear half is thinner than the front portion. A male screw 3 is provided on the surface of the thin portion of the rear part. In the nipple 8 shown in the figure, the outer diameter of the rear part is about half that of the front part. The thin rear male screw 3 is inserted into the mounting hole 5 of the wheel 4. The nut 6 is screwed in here, and the nipple 8 is fixed to the wheel 4. A rubber-like packing 7 is sandwiched between the step 8A and the wheel 4 and between the wheel 4 and the nut 6 to prevent air leakage.

The thick tip portion of the nipple 8 connects the valve tube 9. Therefore, it has a spherical surface 8B that slidably holds the spherical body 9A of the valve tube 9. The spherical surface 8B is hemispherical so that the spherical body 9A of the valve tube 9 can be inserted and removed freely. The half diameter of the spherical surface 8B is designed to be substantially equal to or slightly larger than the radius of the spherical body 9A of the valve tube 9 so that it can slide smoothly when the valve tube 9 is bent. The nipple 8 passes through the center in the axial direction and opens an air hole 12. The nipple 8 has a flat pressing surface 8C that presses the seal member 10 at the tip of the spherical surface 8B.

The seal member 10 is formed by molding a rubber-like elastic body into a disc shape. The outer diameter of the seal member 10 is designed to be substantially equal to the outer diameter of the tip of the nipple 8. A central hole is formed in the center of the seal member 10 so as to airtightly adhere to the spherical body 9A of the valve tube 9. Furthermore, the seal member 10 has the flexibility of elastically deforming itself when the seal nut 11 is screwed into the nipple 8. As described above, the elastically deformable seal member 10 has a feature that the seal nut 11 is tightened into the nipple 8 and brought into close contact with the spherical body 9A of the valve tube 9 to more reliably prevent air leakage.

However, this invention does not specify the structure in which the valve tube 9 is flexibly connected to the nipple 8 to the shape shown in FIG. For example, although not shown, the spherical body 9A of the valve tube 9 can be airtightly adhered to the spherical surface 8B of the nipple 8 without using the seal member 10 to eliminate air leakage.

The seal nut 11 is screwed into the nipple 8. Therefore, the inner thread of the seal nut 11 is provided with the female screw 3, and the outer circumference of the nipple 8 is provided with a screw thread into which the female screw 3 can be screwed. Further, the seal nut 11 has a flange at one end (the left end of the seal nut 11 in FIG. 2). The flange presses the surface of the seal member 10 and prevents the spherical body 9A of the valve tube 9 from coming out of the nipple 8. Therefore, at the center of the flange, a through hole having an inner diameter that comes into contact with or approaches the spherical body 9A of the valve tube 9 is provided.

In the air valve 1 having this structure, when the seal nut 11 is loosened, the pressure with which the seal member 10 presses the spherical body 9A becomes weak. Therefore, the valve tube 9 can be smoothly bent. Therefore, when the valve pipe 9 is bent, the seal nut 11 is slightly loosened, and after the valve pipe 9 is bent at a predetermined angle, the seal nut 11 is tightened into the nipple 8 to prevent air leakage.

[0022]

[Effect of device]

 The air valve fixed to the wheel of this invention is connected to the nipple so that the valve tube is kept airtight and can be freely bent through the ball joint. For this reason, the air valve of the present invention can be fixed to wheels in which the air is introduced in different directions, and the air can be introduced from the optimum direction for the wheel. Therefore, the air valve of the present invention can be used as the conventional L valve, the rotatable air valve shown in FIG. 2, and the linear air valve. Therefore, unlike a conventional air valve, there is no need to specially manufacture it according to the design of the wheel, and a single air valve can be fixed to wheels of various shapes. Therefore, the air valve of the present invention can be mass-produced with a single structure and fixed to wheels with different shapes, which simplifies production and inventory management, and can substantially reduce costs. There is. In particular, the air valve of this invention can be rotated in a horizontal plane and can be tilted or linear with respect to the center axis of the nipple, which makes the valve tube the most convenient direction and convenient. Can be used.

Further, since the single air valve of the present invention can be fixed to the wheels having different shapes, it is possible to realize a feature that is extremely convenient for repairing the air valve. This is because we can stock a single air valve and replace and repair the air valves of various shaped wheels. Furthermore, since it can be used in place of the conventional L valve or in lieu of a straight air valve, it can also be used to repair many types of conventional valves. As a result, it is possible to repair air valves of various wheels.

Furthermore, the air valve of the present invention can change the direction while being fixed to the wheel to shift the center of gravity. Therefore, after injecting air, the valve tube can be bent in the direction that optimizes the wheel balance, and the wheel balance can be achieved with the air valve.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a conventional air valve.

FIG. 2 is a sectional view showing an example of a conventional air valve.

FIG. 3 is a sectional view of an air valve showing an embodiment of the present invention.

[Explanation of symbols]

1 ... Air valve 3 ... Male screw 4 ... Wheel 5 ... Mounting hole 6 ... Nut 7 ... Packing 8 ... Nipple 8A ... Step 8B ... Spherical surface 8C ... Pressing surface 9 ... Valve tube 9A ... Sphere 10 ... Seal member 11 ... Seal nut 12 … Air holes

Claims (1)

[Scope of utility model registration request] 1. A nipple (8) fixed to a wheel (4).
And an air valve (1) comprising a valve tube (9) which is airtightly connected to the nipple (8) and has a built-in check valve therein, the valve tube (9) is a hermetic ball joint. It is flexibly connected to the nipple (8) via the nipple (8) and the wheel (4).
The valve pipe (9) is connected to the nipple (8) so that it can be tilted with respect to the central axis of the nipple (8) and is fixed to a wheel characterized by being able to inject air from any direction. Air valve.