JP3204437U - Gas filling device - Google Patents

Abstract

Provided is a gas filling device capable of preventing occurrence of a burst by performing an emergency stop safely and reliably when a sign of a burst occurs. A main body part 11 attached to a tire safety fence and a remote control part 12 that is separated from the main body part 11 and transmits a radio control signal are provided. The main body part 11 is filled from a compressed gas source 14. A gas passage 25 for sending gas to the tire, a discharge valve 28 provided on the gas passage 25, a pressure sensor 27, a pressure setting valve 26, and a control unit 30 for controlling the discharge valve 28 and the pressure setting valve 26; A radio receiving unit 33 that receives a radio control signal from the remote control unit 12 and transmits the radio control signal to the control unit 30, and the remote control unit 12 stops the supply of the filling gas to the tire being filled and discharges it. The operation switch 34 is configured to transmit an emergency stop wireless control signal for performing control. [Selection] Figure 2

Description

  The present invention relates to a gas filling device for filling a tire with air or the like.

  When exchanging and repairing tires, bursts may occur due to tire damage or the like. When a burst occurs, the tires may be violated by the wind pressure caused by the blast, or the metal tire wheel may be detached, causing danger to nearby workers. Therefore, an air filling device is disclosed that can be filled with air while a tire is housed in a safety fence (safety enclosure) (see Patent Document 1).

  In the air filling device described in Patent Document 1, an air filling device including a manual discharge valve is attached to an upper portion of a safety fence that houses a tire. In addition to the manual discharge valve, the air filling device includes a pressure gauge, a pressure reducing valve, a compressor connection side air hose port, a tire connection side air hose port, and an operation panel. Then, an air hose is connected to the tire housed in the safety fence to fill the air from the compressor.

  When a tire burst occurs, an abnormal noise is often generated in the tire as a precursor. When such abnormal noise occurs, the operator stops the air being supplied to the tires by operating the manual stop button etc. on the operation panel, and also prevents the burst by opening the exhaust valve and exhausting the air. I have to do it.

  In addition, the safety fence described above is formed with a weight that can withstand the wind pressure at the time of bursting so that the safety fence itself does not greatly sway and change position or fall over when the tire bursts. It is designed to be used with a fixed position. For this reason, it is usually used in a place specializing in tires, repair shops, gas stations, and the like.

On the other hand, there is a case where a repair work vehicle goes to the site to repair or replace a tire, fill an air, etc. for repairing a puncture of a vehicle generated while traveling on the road. Because there is a risk of bursting during such air-filling work on business trips, portable air-filling that can be easily mounted on a repair work vehicle and used on-site. A safety fence is also disclosed (see Patent Document 2).
In the safety fence for air filling described in Patent Document 2, a space for the safety fence for housing the tire is provided at a position deviated to one side from the longitudinal center of the base plate having the longitudinal direction, from the longitudinal center of the base plate. In addition, a ride-up section for riding the wheel of the automobile is provided at a position biased to the opposite side. In use, the wheel is stopped at the ride-up portion, and the base plate is prevented from moving by its own weight. Even in such a portable safety fence, an air filling device similar to that of Patent Document 1 is attached to the upper part of the safety fence (side fence).

Japanese Patent Laid-Open No. 11-152016 JP 2013-71490 A

  As described above, in the conventional air filling device, when a sign of burst occurs, the burst is prevented by an operator stopping and discharging air using the operation panel attached to the upper part of the safety fence. It is.

  However, when a sign of a burst occurs, the operator must approach and operate the safety fence with the operation panel. Therefore, the operator approaches the safety fence while worrying about whether a burst occurs. Also, if a burst occurs before the stop operation, the worker is at risk.

  Also, in order to shorten the work time, when multiple tire safety fences and air filling devices are arranged side by side and multiple tires are filled with air at the same time, it is possible to identify which air filling device has a precursor to burst. It is necessary to judge and operate, and quick operation becomes difficult.

  Therefore, the present invention has an object to provide a gas filling device such as air that can prevent an occurrence of a burst by performing an emergency stop more safely and surely than before when a sign of a burst occurs. .

  The gas filling device of the present invention made to solve the above problems is a gas filling device for filling a tire with a filling gas supplied from a compressed gas source, and a main body attached to a safety fence for housing the tire And a remote control unit that transmits a wireless control signal separated from the main body, the main body includes a gas flow path for sending a filling gas supplied from a compressed gas source to the tire, and the gas flow A discharge valve, a pressure sensor and a pressure setting valve provided on the road, a control unit for controlling the discharge valve and the pressure setting valve by a control signal, and receiving the wireless control signal from the remote operation unit to the control unit A radio receiving unit for transmitting, and the remote control unit stops supplying the filling gas to the tire being filled and transmits a radio control signal for emergency stop for controlling the discharging of the filling gas It is as an operation switch that.

  According to the present invention, a remote control unit separated from the main body attached to the safety fence is provided, and the remote control unit stops supplying the filling gas to the tire being filled and discharges the filling gas. An operation switch for transmitting a radio control signal for emergency stop for performing the control is provided. Therefore, by placing the remote control unit at a different position away from the safety fence, or by carrying the remote control part by the worker, the worker is evacuating from the vicinity of the safety fence when a burst warning occurs. It is possible to activate an operation switch that transmits a radio control signal for emergency stop at a remote position, which makes it possible to safely stop the emergency stop operation of stopping the supply of the filling gas to the tire and discharging the filling gas. It can be carried out.

Here, a plurality of the main body units are provided and at least one remote operation unit is provided, and the radio control signal for emergency stop from any one of the remote operation units is a radio reception unit of all the main unit units And all the control units may be controlled at the same time.
According to this, even when a plurality of tires are used to fill a plurality of tires at the same time, when a sign of burst occurs, one action is performed for all the body parts for emergency stop. Therefore, bursts can be reliably prevented for all tires without determining which tire has a precursor. For example, if the worker carries the remote control unit, the worker can perform emergency stop control for all the main body units while evacuating.

Further, at least one main body unit is provided and a plurality of remote operation units are provided, and the main body unit is controlled even if it receives the radio control signal for emergency stop from any remote operation unit. You may do it.
According to this, by providing the remote control unit at a plurality of locations away from the safety fence, even when evacuating to any location, an emergency stop signal can be transmitted from the remote control unit to prevent burst. . For example, when there are multiple exits at a repair shop or the like where safety fences are installed, a remote control unit is provided at each exit so that the emergency stop can be safely controlled regardless of the exit to which the worker escapes. It can be carried out.

The figure which shows an example of the gas filling apparatus which concerns on this invention, and the safety fence which attaches this. The block diagram which shows the internal structure of the gas filling apparatus which concerns on this invention. The figure which shows another Example of this invention.

  Hereinafter, an embodiment of a gas filling device of the present invention will be described with reference to the drawings. FIG. 1 is a view showing a gas filling device according to an embodiment of the present invention and a safety fence to which the gas filling device is attached.

  The gas filling device 10 includes a main body unit 11 and a remote control unit 12. The main body 11 is attached to an upper portion of a safety fence 13 that houses a tire for gas filling, and a compressor 14 that serves as a compressed gas source and an air hose 15 are connected to each other. In addition, an air hose 16 connected to the tire and filled with gas is also connected. Instead of the compressor 14, a nitrogen gas generator may be used as a compressed gas source.

FIG. 2 is a block diagram showing the internal configuration of the gas filling apparatus 10 of FIG. In the gas filling device 10, a housing 21 constituting the main body 11 and a housing 22 constituting the remote operation unit 12 are separated.
The casing 21 of the main body 11 is provided with a connection port 23 for the air hose 15 connected to the compressor 14 and a connection port 24 for the air hose 16 connected to the tire. The two connection ports 23 and 24 are connected by a pipe serving as a gas flow path 25. A pressure setting valve 26, a pressure sensor 27, and a discharge valve 28 are provided on the gas flow path 25.
The casing 21 includes a control unit 30 including a microcomputer including a CPU and a memory, a main body setting unit 31 that includes an operation panel and performs pressure setting and gas filling start and stop operations, and a liquid crystal panel. A display unit 32 that displays a set pressure and a message and a wireless reception unit 33 that receives a wireless control signal from the remote control unit 12 are provided.

The remote operation unit 12 is provided with an operation switch 34 for emergency stop that is operated when a sign of a burst occurs in the housing 22, and wireless transmission that transmits a radio control signal for emergency stop by operating the operation switch 34. The part 35 is incorporated.
The emergency stop radio control signal transmitted from the radio transmission unit 35 is received by the radio reception unit 33, and the control signal is transmitted from the radio reception unit 33 to the control unit 30. The control unit 30 that has received the control signal closes the pressure setting valve 26 to stop the supply of the filling gas, and controls the opening of the discharge valve 28 to discharge the filling gas.

Next, the operation of the gas filling device of the present invention will be described. After the gas-filled tire is stored in the safety fence 13, the air hose 16 is connected to the tire, a desired set pressure is input using the main body setting unit 31 and the display unit 32, and the start button is pressed.
Thereby, compressed air is supplied from the compressor 14 and the tire is filled with gas. Then, the pressure signal from the pressure sensor 27 is transmitted to the control unit 30 and compared with the set pressure. When the gas is normally filled and reaches a desired pressure, a control signal for closing the pressure setting valve 26 is sent from the control unit 30. Gas filling is completed.

On the other hand, when an abnormal sound that is a precursor of a burst occurs, the operator presses the operation switch 34 of the remote operation unit 12 at a position away from the main body unit 11.
As a result, the pressure setting valve 26 is closed and the supply of the filling gas is stopped, and the discharge valve 28 is opened to discharge the filling gas from the tire, thereby preventing the burst. If the remote operation unit 12 is carried with a string or the like, the operator can press the operation button when evacuating from the main body unit 11, so that an emergency stop operation can be performed with peace of mind.

Next, another embodiment of the present invention will be described with reference to FIG. Here, a plurality of safety fences are used so that a plurality of tires can be filled with gas at the same time to improve work efficiency.
For example, in the repair factory 17, four safety fences 13A, 13B, 13C, and 13D are installed side by side, and the main body portions 11A, 11B, 11C, and 11D are provided respectively. Each of the main body portions 11A to 11D has the same configuration as the main body portion 11 of FIG.
The repair shop 17 has a plurality (two in FIG. 3) of entrances 18A and 18B, and remote control units 12A and 12B are attached in the vicinity of the entrances 18A and 18B. Each of the remote control units 12A and 12B has the same configuration as the remote control unit 12 of FIG.

  Therefore, even when any one of the operation switches 34A and 34B of the remote control units 12A and 12B is operated, a common radio control signal transmitted from the radio transmission unit of the remote control units 12A and 12B is transmitted to each main body unit 11A. Are received by the wireless receivers of ˜11D, and an emergency stop operation is simultaneously performed in each of the main body parts 11A to 11D. Therefore, when an operator notices a precursor of a burst, he / she operates one of the remote control units 12A and 12B while escaping toward the nearest entrance / exit, thereby generating a precursor of the burst in any of the main body portions 11A to 11D. Regardless of whether you are doing it, you can emergency stop all at the same time. That is, the pressure setting valve 26 in FIG. 2 is closed to stop the supply of the filling gas, and the discharge valve 28 is opened to discharge the filling gas from the tire.

  As described above, the emergency stop can be simultaneously controlled by a plurality of main body units by a radio control signal from one remote operation unit, and one main body can be controlled by a radio control signal from any one of the plurality of remote operation units. It is also possible to perform emergency stop control on the part.

Although the present invention has been described above, the present invention is not necessarily limited to the above-described embodiment, and can be modified without departing from the purpose and spirit thereof.
For example, in the above embodiment, the remote operation unit 12 is provided with only the emergency stop operation switch 34. However, the remote control unit 12 is provided with an activation button for starting air filling, and the like. A wireless control signal may be transmitted.
In the above embodiment, the pressure setting valve 26 and the discharge valve 28 are provided separately, but a three-way switching valve may be used as the pressure setting valve and the discharge valve.

  In the above embodiment, the emergency stop control is performed on all the main body units simultaneously by the emergency stop radio control signal from any one of the remote control units. In some cases, it may be desirable to perform emergency stop control. Therefore, it is possible to temporarily reject the reception of the radio control signal from the radio operation unit by changing the setting by the main unit setting unit provided in the main unit, and the correspondence with the main unit that can be operated by the remote operation unit The relationship may be adjusted.

  The present invention can be used for a gas filling device for filling a tire with gas.

DESCRIPTION OF SYMBOLS 10 Gas filling apparatus 11 Main-body part 12 Remote control part 13 Safety fence 14 Compressor (compressed gas source)
25 Gas flow path 26 Pressure setting valve 27 Pressure sensor 28 Discharge valve 30 Control unit 31 Main body setting unit 32 Display unit 33 Wireless reception unit 34 Operation switch 35 Wireless transmission unit

Claims (3)

A gas filling device for filling a tire with a filling gas supplied from a compressed gas source,
A main body attached to a safety fence for storing the tire;
A remote control unit that separates from the main body and transmits a wireless control signal;
The main body includes a gas flow path for sending a filling gas supplied from a compressed gas source to the tire, a discharge valve, a pressure sensor and a pressure setting valve provided on the gas flow path, and the discharge valve and the pressure setting valve. A control unit that controls a control signal, and a radio reception unit that receives the radio control signal from the remote control unit and transmits the signal to the control unit,
The remote operation unit is provided with an operation switch for stopping a supply of a filling gas to a tire being filled and transmitting an emergency stop wireless control signal for performing a control for discharging the filling gas. Filling equipment. A plurality of the main body units are provided and at least one remote operation unit is provided,
The gas according to claim 1, wherein the radio control signal for emergency stop from any one of the remote control units is received by the radio receiving units of all the main body units and controlled simultaneously by all the control units. Filling equipment.   At least one main body unit is provided and a plurality of remote operation units are provided, and the main body unit is controlled even if it receives the radio control signal for emergency stop from any remote operation unit. The gas filling device according to claim 1.

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