JP3036096B2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refueling device having a long refueling hose, for example, a refueling device mounted on a kerosene refueling vehicle, a suspended refueling device for suspending a refueling hose from a canopy at a gasoline refueling station, a fishing boat moored on a quay, etc. And a refueling device for refueling a ship.

[0002]

2. Description of the Related Art For example, a kerosene refueling vehicle is one in which an oil storage tank and a refueling device including a refueling pump, a refueling motor, a refueling hose, and the like are mounted on a car bed, and the kerosene is delivered to each household. However, the position where the car stops and the location of the fuel tank installed at home may be as far as 50 m away. In such a case, the refueling amount is displayed on a display provided in a refueling device mounted on the vehicle, but the refueling point is far away from the vehicle, so that the refueling amount cannot be read from the refueling point.

Therefore, as shown in, for example, Japanese Patent Publication No. 1-39954, a portable operating device is provided separately from a vehicle-mounted refueling device, and a receiver and an indicator of the amount of refueling are provided in the portable operating device. In some cases, a refueling amount signal transmitted from a wireless transmitter on the refueling device side is received by the receiver and displayed on a display so that the refueling amount can be read at hand by a portable operating device.

[0004]

When a refueling amount signal is transmitted wirelessly, the transmission distance is long if a specific low power is used, and transmission and reception are possible even if the kerosene refueling rate and the refueling point are about 50 m apart. , Type approval is required, and it can be used only in a specific frequency band. On the other hand, if weak radio waves are used, communication is possible in all frequency bands within the limit output of the Radio Law, and there are advantages such as no license or notification required.
It is not possible to cope with a fueling device having a long fueling hose such as a kerosene fueling vehicle having a fueling hose of about 10 to 20 m and a length of about 50 m.

[0005] Such a disadvantage can be solved by providing a hand counter at or near the refueling nozzle at the tip of the refueling hose without using a radio, and connecting the hand counter and the refueling amount signal transmitter on the refueling device side by wire. However, there is a risk that the signal line will be cut in the middle, especially at the swivel joint where the refueling nozzle is connected to the refueling hose, or at the safety pipe joint where the refueling hose is connected to the hose. In many cases, it is necessary to use an explosion-proof structure for the hand counter, which increases the cost.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned disadvantages of the prior art. Even if the oil supply hose is long and the distance between the oil supply device and the hand counter is as long as about 50 m, it is possible to transmit and receive radio waves by weak radio waves. An object of the present invention is to provide a refueling device that can also ensure safety when using a lubrication device.

[0007]

According to the present invention, in order to achieve the above object, a discharge pipe connected to a discharge side of a refueling pump is connected to a refueling nozzle via a flowmeter and a refueling hose, and the flow is measured by the flowmeter. A wireless transmission circuit for outputting a refueling amount signal of the refueling amount is provided, and a transmission connector of the wireless transmission circuit is connected to a base end of an antenna line buried over substantially the entire length of the refueling hose, and the antenna line is connected to the wireless transmission circuit. In a refueling device including a hand counter for receiving and displaying a transmitted refueling amount signal, the refueling hose is formed by a multilayer pipe of an inner layer and an outer layer, and the antenna wire is coated and embedded in the outer layer. It is assumed that.

[0008]

According to the present invention, the refueling amount signal output from the wireless transmission circuit is sent to the buried antenna line over substantially the entire length of the refueling hose via the transmitting connector, and is transmitted from the antenna line. You. A hand-held counter provided at 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 was buried over almost the entire length of the refueling hose, the distance between the antenna wire and the hand counter became shorter, and the refueling hose became
Wireless transmission using a weak radio wave is possible even if the length is as long as 50 m. Since the antenna wire is coated and buried in the outer layer of the oil supply hose formed by the inner layer and the outer layer, even if the ground wire is wound around the outer peripheral surface of the inner layer, for example, the antenna wire contacts the ground wire. I will not do it.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of a refueling amount display control showing one embodiment of a refueling device of the present invention, FIG. 2 is a vertical sectional side view of a refueling hose showing one embodiment of a refueling device of the present invention, and FIG. Longitudinal sectional front view of a refueling hose showing one embodiment of the device,
FIG. 4 is a perspective view of a case in which the fuel supply device of the present invention is applied to a kerosene refueling vehicle. Hereinafter, a kerosene refueling vehicle will be described by way of example.

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

In the figure, reference numeral 16 denotes a hand counter, which includes a refueling amount indicator 17 and a receiving antenna 18 and has a built-in receiving circuit 19.
The hand counter 16 is portable in the illustrated example, but is not limited to this, and may be fixed to the refueling nozzle 9.

Then, the base end of the antenna wire 10 is connected to the transmitting connector 20 of the radio transmission circuit 15, and this antenna wire
As shown in FIGS. 2 and 3, 10 is linearly or spirally arranged in the outer layer 8 b of the refueling hose 8 formed of a multi-layer pipe of the inner layer 8 a and the outer layer 8 b along the length direction of the refueling hose 8. Buried. In this case, the antenna wire 10 is coated so as not to come into contact with the ground wire 21 wound spirally on the outer peripheral surface of the inner layer 8a. The antenna wire 10 is buried over the entire length of the fueling hose 8. If there is a safety pipe joint or a hand switch in the middle of the fueling hose 8, the antenna wire 10 is provided continuously to this point, and the tip is insulated with resin 6. I do. In the figure, reference numeral 22 denotes a hose fitting.

As described above, as shown in FIG. 1, the flow pulse signal from the flow pulse transmitter 12 is introduced into a control circuit 23 using a microcomputer or the like, and the control circuit 23
The refueling amount signal from 23 is introduced into the refueling amount display 13 and into the wireless transmission circuit 15, and the transmission connector
Introduced into the antenna line 10 via 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 therefrom is supplied via the control circuit 25 utilizing a microcomputer or the like. Introduced in quantity display 17.

Next, usage and operation will be described. When the refueling car 1 is stopped near the house where kerosene is to be refueled, 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 extended. Then, the fueling nozzle 9 is carried to the oiled tank 26, the tip is inserted into the oiled tank 26, and the valve is opened to start oiling. Then, the flowmeter 5 rotates and the flow rate pulse signal is sent from the flow rate pulse transmitter 12. Is output to the control circuit 23. The refueling amount is counted by the control circuit 23, and a refueling amount signal is output to the refueling amount display 13, which displays the refueling amount and also outputs to the wireless transmission circuit 15.

The refueling amount signal output from the wireless transmission circuit 15 is sent to the antenna line 10 via the transmitting connector 20.
The signal is transmitted into the air from the entire length of the antenna line 10. The refueling amount signal is transmitted from a portable hand-held counter 16 carried by a worker working near the refueling nozzle 9 or the refueling nozzle 9.
The signal is captured by the receiving antenna 18 of the hand counter 16 fixed to the receiver and is input to the receiving circuit 19 via the receiving connector 24. In this case, even if a weak radio wave is used for wireless transmission, the signal is transmitted from the antenna wire 10 buried over the entire length of the fueling hose 8, so that even if the fueling hose 8 is long, for example, 50 m, the fueling hose 8 may be used. Reception at the nearby hand counter 16 becomes possible.

The refueling amount signal input to the receiving circuit 19 is input to the control circuit 25 and the refueling amount indicator provided on the hand counter 16.
17 shows the amount of refueling. Therefore, the refueling worker can know the refueling amount by looking at the nearby hand counter 16, and the refueling car 1 is stopped at a far away position and directly looks at the refueling amount display 13 mounted on the refueling car 1. It is possible to know the amount of refueling even if it is not possible.

The refueling amount indicator 17 is displayed on the counter 16 at hand.
In addition, an input key and a transmission circuit are provided, and on the other hand, a receiving circuit is provided on the refueling vehicle 1 side to perform two-way communication, and the key operation of the input key of the hand counter 16 turns on the refueling motor 11 on the refueling vehicle 1 side. Control such as OFF count reset can be performed at hand.

[0018]

As described above, the lubricating apparatus of the present invention
Even if the refueling hose is long and the hand counter and the refueling device main body are separated by, for example, 50 m and more than the distance that can transmit and receive weak radio waves, the antenna line is buried over the entire length of the refueling hose, so wireless data communication using weak radio waves Is possible. Then, since the antenna wire is coated and buried in the outer layer of the oil supply hose formed by the inner layer and the outer layer,
For example, even if the ground wire is wound around the outer peripheral surface of the inner layer, the antenna wire does not contact the ground wire.

[Brief description of the drawings]

FIG. 1 is a block diagram of a refueling amount display control showing one embodiment of a refueling device of the present invention.

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

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

FIG. 4 is a perspective view of a case in which the fuel supply device of the present invention is applied to a kerosene-fueled vehicle.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Kerosene refueling vehicle 2 ... Oil storage tank 3 ... Oil supply pipe 4 ... Oil supply pump 5 ... Flowmeter 6 ... Resin 7 ... Hose reel 8 ... Oil supply hose 8a ... Inner layer 8b ... Outer layer 9 ... Oil supply nozzle 10 ... Antenna wire 11 ... Oil supply motor 12 ... Flow pulse transmitter 13 ... Lubrication amount display 14 ... Control device 15 ... Wireless transmission circuit 16 ... Hand counter 17 ... Lubrication amount display 18 ... Reception antenna 19 ... Reception circuit 20 ... Reception connector 21 ... Earth wire 22 ... Hose fitting 23 ... Control circuit 24 ... Receiver connector 25 ... Control circuit 26 ... Lubricated tank

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B67D 5/60 B60P 3/00 F16L 11/12

Claims (1)

(57) [Claims] 1. A wireless transmission circuit for connecting a discharge pipe connected to a discharge side of a refueling pump to a refueling nozzle via a flowmeter and a refueling hose, and outputting a refueling amount signal of the refueling amount measured by the flowmeter. A hand-held counter for connecting a transmission connector of the wireless transmission circuit to a base end of an antenna line buried over substantially the entire length of a fueling hose, receiving and displaying a fueling amount signal transmitted from the antenna wire. A fueling device comprising: a fueling hose, wherein the fueling hose is formed of an inner layer and an outer layer of a multi-layer tube, and the antenna wire is coated and buried in an outer layer.