JPH04267799A - Oil feeding apparatus - Google Patents

Abstract

PURPOSE:To transmit even using weak radio waves having a short transmitting or receiving distance up to a counter at hand, when in an oil station with a long oil feeding hose the oil feeding volume is indicated in a counter at hand by data communication with radio. CONSTITUTION:A radio transmitting circuit 15 to output the oil-fed signals of measured oil volume by a flow rate meter is provided in an oil feeding apparatus in which a delivery pipe connected to the delivery side of the oil feeding unit is jointed to an oil feeding nozzle through the flow rate meter and an oil feeding hose. And a transmitting connector 20 of the radio transmitting circuit 15 is connected to the base of an antenna buried along the almost full length of the oil feeding hose 8 to receive the oil-fed signals transmitted from the antenna 10 through a receiving antenna 8 and to provide a counter 16 at hand to indicate it in an oil feeding volume indicator 17.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention is applicable to refueling devices with long refueling hoses, such as refueling devices mounted on kerosene refueling cars, suspended refueling devices that suspend refueling hoses from canopies at gasoline filling stations, fishing boats moored to quays, etc. This invention relates to refueling equipment for refueling ships.

0002

[Prior Art] For example, a kerosene refueling vehicle is a vehicle that is equipped with a refueling device consisting of a refueling tank, a refueling pump, a refueling motor, a refueling hose, etc. on the cargo bed of the vehicle, and is used to deliver kerosene to each home. However, the location where the car is parked and the location of the fuel tank installed at home may be as much as 50 meters apart. In such a case, the amount of refueling is displayed on a display provided on the refueling device mounted on the vehicle, but since the refueling point is far away from the vehicle, the amount of refueling cannot be read from the refueling point.

Therefore, as shown in Japanese Patent Publication No. 1-39954, for example, a portable operating device is provided separately from the on-vehicle refueling device, and this portable operating device is provided with a receiver and a fuel amount indicator. , by receiving a refueling amount signal transmitted from a wireless transmitter on the refueling device side with the receiver and displaying it on the display,
There is a portable operating device that allows you to read the amount of refueling at hand.

0004

[Problem to be Solved by the Invention] When transmitting a refueling amount signal by radio, the range is long if specific low power is used, and transmission and reception is possible even if the kerosene refueling rate and refueling point are about 50 meters apart. , type approval is required, and it can only be used in a specific frequency band. On the other hand, if weak radio waves are used, it is possible to communicate in all frequency bands as long as the output is within the limits of the Radio Law, and there are advantages such as no need for licenses or notifications, but the distance over which transmission and reception is possible is only 1.
The length is approximately 0 to 20 m, and cannot be applied to refueling devices having long refueling hoses, such as kerosene refueling vehicles having refueling hoses of approximately 50 m in length.

[0005] Such inconvenience can be solved by providing a hand-held counter at or near the refueling nozzle at the end of the refueling hose, and connecting the hand-held counter to the refueling amount signal transmitter on the refueling device side by wire, instead of using wireless communication. However, there is a risk that the signal line may be cut midway, especially at the swivel joint that connects the refueling nozzle to the refueling hose, or the safety pipe joint installed in the middle of the hose that connects the refueling hoses to each other. Moreover, it is necessary to make the hand-held counter have an explosion-proof structure, which increases the cost.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the disadvantages of the conventional example, and to provide a refueling device that is capable of transmitting and receiving wireless communication using weak radio waves even when the refueling hose is long and the distance between the refueling device and the counter at hand is about 50 m. It's about doing.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a refueling device in which a discharge pipe connected to the discharge side of a refueling pump is connected to a refueling nozzle via a flowmeter and a refueling hose. A wireless transmission circuit is provided to output a refueling amount signal of the refueling amount measured in the refueling hose, and the transmitting connector of the wireless transmitting circuit is connected to the base end of an antenna wire buried over almost the entire length of the refueling hose. The gist thereof is to include a handheld counter that receives and displays a refueling amount signal transmitted from an antenna line.

[0008]

[Operation] According to the present invention, the refueling amount signal output from the wireless transmission circuit is sent via the transmitting connector to the antenna wire buried over almost the entire length of the refueling hose, and is transmitted from the antenna wire. Ru. A portable counter or a handheld counter provided on the refueling nozzle receives the refueling amount signal and displays the refueling amount on a display provided here. In this case, since the antenna wire is buried over almost the entire length of the refueling hose, the distance between the antenna wire and the counter at hand is shortened, and even if the refueling hose is as long as 50 m, wireless transmission using weak radio waves is possible.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is a block diagram of a refueling amount display control showing an embodiment of the refueling device of the present invention, Fig. 2 is a longitudinal cross-sectional side view of a refueling hose showing an embodiment of the refueling device of the present invention, and Fig. 3 is a refueling amount display control diagram of an embodiment of the refueling device of the present invention. A longitudinal sectional front view of a refueling hose showing one embodiment of the device,
FIG. 4 is a perspective view of a kerosene refueling vehicle in which the refueling apparatus of the present invention is implemented, and the kerosene refueling vehicle will be described below by way of example.

In the figure, numeral 1 is a kerosene refueling vehicle, and a refueling tank 2 is mounted on the cargo platform. A fuel supply pipe 3 communicating with the fuel storage tank 2
A refueling pump 4 and a flow meter 5 are sequentially installed in the refueling pipe 3, and the tip of the refueling pipe 3 is connected to a refueling hose 8 via a hose reel 7.
A refueling nozzle 9 is provided at the tip of the refueling hose 8. A refueling motor 11 is connected to the refueling pump 4, a flow rate pulse transmitter 12 is attached to the flow meter 5, a reel driving motor (not shown) is connected to the hose reel 7, and a control circuit 23 and a wireless transmission circuit are connected. A control device 14 having a built-in controller 15 is provided. In the figure, reference numeral 13 indicates a refueling amount indicator mounted on the refueling vehicle 1.

In the figure, reference numeral 16 indicates a hand-held counter, which is equipped with a refueling amount display 17, a receiving antenna 18, and has a receiving circuit 19 built therein. Although this hand-held counter 16 is portable in the illustrated example,
It is not limited to this, and may be fixed to the oil supply nozzle 9.

Then, the base end of the antenna wire 10 is connected to the transmitting connector 20 of the radio transmitting circuit 15, and the antenna wire 10 is connected to the inner layer 8a and the outer layer 8 as shown in FIGS.
It is buried linearly or spirally along the length direction of the refueling hose 8 between the layers or in the outer layer 8b of the refueling hose 8 formed of the multilayered pipe of b. In this case, the inner layer 8a
The antenna wire 10 is coated to prevent it from coming into contact with the ground wire 21 spirally wound around the outer peripheral surface of the antenna wire 10. This antenna wire 10 is buried along the entire length of the refueling hose 8, but if there is a safety pipe joint or hand switch in the middle of the refueling hose 8, it is installed continuously up to this point, and the tip is insulated with resin 6. do. In the figure, 22 indicates a hose fitting.

As described above, as shown in FIG. 1, the flow rate pulse signal from the flow rate pulse transmitter 12 is introduced into the control circuit 23 using a microcomputer or the like, and the oil supply amount signal from the control circuit 23 is used as the oil supply amount signal. It is introduced into the quantity indicator 13 and also into the wireless transmission circuit 15, and from there into the antenna line 10 via the transmission connector 20. On the other hand, on the hand counter 16 side, the refueling amount signal received by the receiving antenna 18 is introduced into the receiving circuit 19 via the receiving connector 24, and the signal from there is sent to the refueling circuit 19 via the control circuit 25 using a microcomputer or the like. Amount display 17
It was introduced in

Next, usage and operation will be explained. When the refueling truck 1 is stopped near a house to be refueled with kerosene and the tip of the refueling hose 8 and the refueling nozzle 9 are pulled by hand, the hose reel 7 rotates and the refueling hose 8 is fed out. Then, the refueling nozzle 9 is carried to the tank 26 to be refueled,
When the tip is inserted into the tank 26 to be refueled and the valve is opened to start refueling, the flow meter 5 rotates and a flow pulse signal is output from the flow pulse transmitter 12, which is transmitted to the control circuit 2.
3 is input. The control circuit 23 counts the amount of oil supplied,
The refueling amount signal is output to the refueling amount display 13 to display the refueling amount there, and is also output to the wireless transmission circuit 15.

The refueling amount signal outputted from the radio transmitting circuit 15 is sent to the antenna wire 10 via the transmitting connector 20, and is transmitted into the air from the entire length of the antenna wire 10. This refueling amount signal is captured by the receiving antenna 18 of the portable hand-held counter 16 carried by a worker working near the refueling nozzle 9 or the hand-held counter 16 fixed to the refueling nozzle 9, and then sent to the receiving connector 24. The signal is inputted to the receiving circuit 19 via. In this case, even if weak radio waves are used for wireless transmission, they are transmitted from the antenna wire 10 buried over the entire length of the refueling hose 8, so even if the refueling hose 8 is long, for example, 50 m, the refueling hose 8 It becomes possible to receive the signal at a nearby counter 16 at hand.

The oil supply amount signal input to the receiving circuit 19 is input to the control circuit 25, and the oil supply amount is displayed on the oil supply amount display 17 provided on the hand-held counter 16. Therefore, the refueling worker can know the amount of refueling by looking at the nearby counter 16, and even if the refueling truck 1 is parked far away,
It becomes possible to know the amount of refueling even if the refueling amount indicator 13 mounted on the vehicle cannot be directly seen.

Note that the counter 16 at hand is provided with not only a refueling amount display 17 but also an input key and a transmission circuit.
A receiving circuit is provided on the refueling vehicle 1 side for two-way communication, and control such as ON-OFF count reset of the refueling motor 11 on the refueling vehicle 1 side can be performed at hand by key operation of the input key of the handheld counter 16. You can also do it.

[0018]

[Effects of the Invention] As described above, the oil supply device of the present invention has
Even if the refueling hose is long and the hand counter and the main body of the refueling device are separated by, for example, 50 meters, which is more than the distance at which weak radio waves can be sent and received, the antenna wire is buried along the entire length of the refueling hose, allowing wireless data communication using weak radio waves. is possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of oil supply amount display control showing one embodiment of the oil supply apparatus of the present invention.

FIG. 2 is a longitudinal sectional side view of a refueling hose showing one embodiment of the refueling device of the present invention.

FIG. 3 is a longitudinal sectional front view of a refueling hose showing one embodiment of the refueling device of the present invention.

FIG. 4 is a perspective view of the fueling device of the present invention applied to a kerosene fueling vehicle.

[Explanation of symbols]

Claims (1)

[Claims] 1. In a refueling device in which a discharge pipe connected to the discharge side of a refueling pump is connected to a refueling nozzle via a flow meter and a refueling hose, a wireless system that outputs a refueling amount signal of the refueling amount measured by the flow meter. A transmitting circuit is provided, and the transmitting connector of the wireless transmitting circuit is connected to the base end of an antenna wire buried over almost the entire length of the refueling hose, and the refueling amount signal transmitted from the antenna wire is received and displayed. A refueling device characterized by being equipped with a hand-held counter.