JPH11152016A - Tire air filling equipment - Google Patents

Abstract

(57) [Problem] To provide a tire air filling device capable of forcibly exhausting when a burst or the like is likely to occur and preventing the burst or the like. SOLUTION: In an air filling apparatus 1 for filling air from a compressor 20 via a pressure reducing valve 26 into a tire T put in a tire enclosure 2, a manual exhaust valve 27 is provided between the pressure reducing valve 26 and the tire T. Air filling device for interposed tires.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for filling a tire with air.

[0002]

2. Description of the Related Art Conventionally, in a tire air filling apparatus, compressed air of a compressor is supplied to a tire through a pressure reducing valve. Exhaust was up to pressure.

[0003]

However, depending on the condition of the tire to be filled, bursts (bursts) and ring detachment may occur even at a pressure lower than the set pressure, which cannot be dealt with. The present invention has been made in view of the above point,
An object of the present invention is to provide a tire air filling device capable of forcibly exhausting gas when a burst or the like is likely to occur and preventing the burst or the like.

[0004]

In order to achieve the above object, the present invention provides an air filling apparatus for filling a tire placed in a tire enclosure with air from a compressor via a pressure reducing valve. An air filling device for a tire in which a manual exhaust valve was interposed between the pressure reducing valve and the tire.

[0005] When a burst occurs during the operation of filling the tire with air, the tire often generates abnormal noise as a precursor. So when the tires make noise,
The operator can operate the manual exhaust valve to exhaust the compressed air supplied to the tire, thereby preventing a burst.

According to a second aspect of the present invention, in the air filling device for a tire according to the first aspect, the manual exhaust valve is a manual switching valve integrally formed with an intake valve. The number of parts can be reduced and the configuration can be simplified.

According to a third aspect of the present invention, in the tire air filling device according to the first or second aspect, a punching metal is used for the tire enclosure. When a burst occurs, the blast is alleviated by the punching metal, and the influence on the surroundings can be avoided as much as possible.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The tire air filling device 1 of the present embodiment is a two-line system capable of simultaneously filling two tires T with air, and the tire enclosure 2 is erected on a substrate 3 in an inverted U-shape. Three U-shaped frames 4 are provided in parallel at predetermined intervals.

[0009] The three U-shaped frames 4 are connected and supported from the rear surface to the upper portion by four connecting frames 5 oriented horizontally in the left-right direction. Each U-shaped frame 4 is provided with four cross members 6 extending inward in the front-rear direction and extending vertically, and a punching metal 7 is stretched in contact with the cross members 6.

Therefore, the left and right punching metals 7, 7
The tire T is loaded into the space between the tires from the front opening and the substrate 3
The tire T is supported and stored between two tire support rods 8, 8 provided in the front and rear predetermined positions along the vicinity of the right and left directions. Punching metal 7
It is sufficient that the height of the tire T is equal to or higher than the uppermost portion of the tire T when the large tire T is stored. In this embodiment, the entire side is covered with the punching metal 7.

An operation panel 10 is erected on the uppermost connection frame 5 for connecting the U-shaped frame 4, and a tire internal pressure is displayed on the front of the operation panel 10 corresponding to each line with reference to FIG. A total 11, a set pressure indicator 12, and a switching lever 13 for switching a mode are disposed symmetrically, and a pressure reducing valve 26 is provided on the upper surface. The pressure reducing valve 26 can be set to an air pressure suitable for the tire T by operating the pressure adjusting handle 26a, and the set pressure is displayed on the set pressure indicator 12
Is shown.

FIG. 2 shows the tire accommodating space of each line.
As shown in FIG. 5, an air hose 15 extends, and an air chuck 16 at the tip thereof is mounted on a valve of the tire T in which the air hose 15 is housed, and air is charged. The operation panel 10 may be detachable.

FIG. 5 is a pneumatic circuit diagram of the air filling apparatus 1. Piping 22 connected from compressor 20 by coupler 21
Are connected to an air filter 24 via a coupler 23, and are branched from the air filter 24 to pipes 25, 25 of each line. Each pipe 25 is connected to the air hose 15 via a pressure reducing valve 26 and a manual switching valve 27 in that order via a coupler 28.

The pressure reducing valve 26 is provided with a pressure gauge 29, and the tire internal pressure indicator 11 is provided in a pipe 25 between the manual switching valve 27 and the coupler 28. The pressure reducing valve 26 automatically exhausts and reduces the pressure to the tire set pressure when the measured tire pressure exceeds the set pressure.

The manual switching valve 27 is a lever type 4-port 3
It is a position switching valve, and three positions of intake, internal pressure display, and exhaust are switched and set by operating the switching lever 13 (see FIG. 4). In FIG. 5, the manual switching valve 27 has an intake position
The middle stage is the internal pressure display position, and the upper stage is the exhaust position.

For example, one of the two lines may be used for low pressure filling of tires for passenger cars, and the other may be used for high pressure filling for tires for trucks and buses. .

When performing the air filling operation, first, the tire T
To the perforated metal 7 on one line of the tire enclosure 2,
7, and is stably supported between the tire support rods 8, 8, the air chuck 16 is mounted on the valve, the switching lever 13 is operated to set the manual switching valve 27 to intake, Fill with air. The pressure reducing valve 26 operates to automatically adjust the tire internal pressure to the tire set pressure.

Then, the switching lever 13 is operated to manually switch the valve.
27 is switched to the internal pressure display, the tire internal pressure is confirmed on the display of the tire internal pressure indicator 11, the air chuck 16 is removed, the air filling operation is completed, and the tire T is taken out. By repeatedly switching the switching lever 13 between the exhaust side and the air supply side manually, even when the tire air pressure becomes excessive, the pressure can be finely adjusted to cope with it.

Normally, air is charged as described above. However, if there is a possibility of a burst due to a defect in the tire T, a peculiar clicking sound is generated as a precursor to the burst during the air charging. When such abnormal noise is heard, the switching lever 13 is operated to switch the manual switching valve 27 to exhaust, so that the tire internal pressure can be reduced and burst can be prevented beforehand.

As described above, the burst during air filling can be prevented with a simple configuration including the manual switching valve 27 having the exhaust position.

In the case of the air filling device 1, the tire enclosure 2
Since the punching metal 7 is used to cover both sides of the accommodated tire T with the punching metal 7, even if a burst occurs, the blast is alleviated, and the scattered material of the tire T is also blocked by the patching metal 7 and To avoid scattering to the surroundings as much as possible.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an air filling device according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a front view of the operation panel.

FIG. 5 is a pneumatic circuit diagram of the air filling device.

[Explanation of symbols]

T: tire, 1: air filling device, 2: tire enclosure, 3 ...
Substrate, 4 ... U-shaped frame, 5 ... Connected frame, 6 ... Cross member, 7 ... Punched metal, 8 ... Tire support bar, 10 ... Operation panel, 11 ... Internal pressure indicator, 12 ... Set pressure indicator, 13 ... Switch Lever, 15 ... air hose, 16 ... air chuck, 21 ... coupler, 22 ... piping, 23 ... coupler, 24 ... air filter, 25 ... piping, 26 ... pressure reducing valve, 27 ... manual switching valve,
28 ... coupler, 29 ... pressure gauge.

Claims (3)

[Claims] 1. An air filling device for filling a tire placed in a tire enclosure from a compressor via a pressure reducing valve, wherein a manual exhaust valve is interposed between the pressure reducing valve and the tire. Tire air filling device. 2. The air filling device for a tire according to claim 1, wherein the manual exhaust valve is a manual switching valve integrally formed with an intake valve. 3. The air filling device for a tire according to claim 1, wherein a punching metal is used for the tire enclosure.