JPH07156895A - Moving device of receiving hose joining part for fuel feeding vehicle - Google Patents

Abstract

PURPOSE:To provide a moving device of a receiving hose joining part for a fuel feeding vehicle by which labor of an operator is reduced and fatigue or lumbago is eliminated by enabling a joining part or the like of a large and heavy receiving hose to be moved simply and easily, and enabling it to be connected to an oil feeding connecting part of undeground piping by adjusting a height or an angle simply and easily. CONSTITUTION:In a moving device 12, an upper holding part 13 is fixed to a joining metal fitting 5 being a joining part on the tip of a receiving hose, and the upper holding part 13 is installed on a lower holding part 14 having wheels 23 so as to be raised and lowered through cylinders 15. A directional control valve is arranged so as to be able to supply, seal and exhaust compressed air to the cylinders 15 from an air tank. Instead of the directional control valve, a regulator to regulate pressure of the compressed air is arranged to balance raising energizing force by the cylinders 15 with weight of the upper holding part 13, the joining metal fitting 5, a part of the receiving hose or the like, and these may be held in a floating condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving device for a receiving hose connecting portion of a fuel tank truck. That is, the present invention relates to a moving device for a connecting portion at the tip of a receiving hose in a fuel tanker vehicle for supplying fuel oil to an aircraft.

[0002]

2. Description of the Related Art As a fuel refueling vehicle for an aircraft, one of a type for refueling the fuel oil in the tank with a tank mounted on a vehicle
There is a type called a servicer that takes fuel oil from a storage tank on the airport side via underground piping and refuels it without installing a tank. At airports where large aircraft depart and arrive, the amount of fuel oil that can be refueled to large aircraft at once is large, so the above-mentioned fuel tanker-equipped fuel refueling vehicle is generally inefficient and inefficient, A fuel refueling vehicle of the type described above that does not have the tank mounted therein is used.

FIG. 6 is a perspective view of such a fuel refueling vehicle also called a servicer, FIG. 7 shows a refueling state of the aircraft, (1) is a perspective explanatory view, and (2) is a plan explanatory view. Is. In the fuel refueling vehicle 1 as described above, the fuel oil pumped through the underground pipe 2 from the large-capacity storage tank provided on the airport side is used to refuel the fuel pipe 3 of the underground pipe 2.
Connect the fitting 5 at the end of the receiving hose 4 to and take it in. Then, the fuel oil thus taken in is supplied to the aircraft 9 from the lifter 7 by means of the refueling hose 8 after passing through the refueling device in the machine room 6 mounted on the vehicle.

[0004]

By the way, the following problems have been pointed out in such a conventional example. That is, the parking time of the aircraft 9 at the airport is limited, and the parking time is often required to be shortened, and the refueling time of the fuel refueling vehicle 1 to the aircraft 9 is also required to be shortened.
Therefore, in order to finish refueling within a short time, refueling with a large flow rate has been conventionally performed, and a large amount of fuel oil is refueled at one time. Therefore, the receiving hose 4 of the fuel refueling vehicle 1 also
A large caliber was used, and the connecting fitting 5 at the tip was also large in shape and heavy in weight.

Then, when refueling by the fuel refueling vehicle 1, as shown in the figure, the large and heavy coupling fitting 5 and the receiving hose 4 are moved from the on-vehicle state to the refueling coupling fitting 3 on the side of the underground pipe 2. It is pointed out that the work of connecting and the work of connecting the moved fitting 5 to the refueling fitting 3 on the side of the underground pipe 2 that opens upward while adjusting the height and angle of the fitting 5 are both troublesome and labor-intensive. was there. That is, when refueling, the worker conventionally lifts and holds the coupling fitting 5 of the large and heavy receiving hose 4 from the ground A and holds the fuel refueling vehicle 1 parked under the aircraft 9.
From the side to the underground pipe 2 side, and while lifting and holding, the height and angle are adjusted and connected together. Such work is carried out by relying only on the human power using the limbs of the worker, which is very troublesome for the worker and causes heavy labor, resulting in fatigue and low back pain for the worker.

In view of the above situation, the present invention has been made to solve the problems of the above-mentioned conventional example, in which the upper holding portion is fixed near the coupling portion at the tip of the receiving hose, and the upper portion of the upper portion is fixed. The holding unit is mounted on a lower holding unit with wheels so as to be able to move up and down via a cylinder, and a switching valve is provided between the cylinder and its pressure source in the first aspect, and a regulator for adjusting the pressure in a predetermined manner in the second aspect. By providing the, large and heavy joints and the like can be easily and easily moved, and the height and angle can be easily and easily adjusted for connection.
It is an object of the present invention to propose a moving device for a receiving hose coupling part of a fuel tanker vehicle.

[0007]

The technical means of the present invention for achieving this object are as follows. First, claim 1
About: That is, this moving device is attached to the tip of the receiving hose in a fuel refueling vehicle that refuels the aircraft with the refueling hose through the refueling device, and the fuel oil is pumped underground. The present invention relates to a moving device for a connecting portion that can be connected to an oil supply connecting portion of piping. Then, an upper holding portion that fixedly holds the vicinity of the coupling portion, a lower holding portion that is assembled so that the upper holding portion can move up and down, and that is grounded via wheels, and an intermediate portion between the upper holding portion and the lower holding portion. A cylinder that can move up and down the upper holding portion, the coupling portion, etc. on the lower holding portion, and a switching valve that can supply, seal, and exhaust the pressure fluid from the pressure source to the cylinder. Become.

Next, claim 2 is as follows. That is, the moving device of the receiving hose coupling portion of this fuel refueling vehicle uses a regulator instead of the switching valve of claim 1, and the regulator adjusts the pressure of the pressure fluid from the pressure source to the cylinder. By doing so, the upward biasing force of the cylinder and the weights of the upper holding portion, the coupling portion, a part of the receiving hose, etc. are constantly balanced, and these are placed in a substantially weightless floating state on the lower holding portion. I'm holding it.

[0009]

Since the present invention comprises such means, it operates as follows. When refueling, when moving the connection part of the receiving hose to the refueling connection part of the underground pipe, first, claim 1.
Then, a switching operation of the switching valve is performed, and a slight force is applied in the second aspect, whereby the coupling portion is lifted by the cylinder while being held by the upper holding portion of the moving device. Then, in Claim 1, the switching operation of the switching valve is performed, and in Claim 2, the force is released, so that the coupling portion is held in the raised position and then moved using the wheels of the lower holding portion.

In this way, after moving to the vicinity of the oil supply connection part of the underground pipe, in claim 1 the switching operation of the switching valve is performed and in claim 2 a slight force is applied so that the connection part is a cylinder. It is lowered and the height and angle are adjusted so as to correspond to the refueling joint of the underground pipe. And claim 1
Then, the switching operation of the switching valve is performed, and the force is released in claim 2, so that the connecting portion is held at the adjusted height and angle by the cylinder, and is joined and connected to the oil supply connecting portion of the underground pipe. Refueling is carried out. When refueling is completed, the joint portion is lifted in the same manner as described above, and is moved from the vicinity of the refueling joint portion of the underground pipe to the fuel refueling vehicle.

A receiving hose having a large diameter is used, and its connecting portion is also large in shape and heavy in weight. However, by using a moving device, the receiving hose can be moved easily and easily. The height and angle are adjusted and connected to the oil supply connection part of the underground pipe.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. 1, FIG. 2, FIG. 3, FIG. 4, and FIG.
Shows an embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a side view of a moving state, FIG. 3 is a side view of a connected state, and FIG. Reference numeral 5 shows another example of the air circuit.

First, the fuel refueling vehicle 1 serving as a servicer will be outlined with reference to FIGS. 6 and 7. In this fuel refueling vehicle 1, the fuel oil taken from the receiving hose 4 is refueled to the aircraft 9 by the refueling hose 8 via the refueling device. That is, a hydrant refueling device is provided on the airport side, and fuel oil is pumped from a large-capacity storage tank of the hydrant refueling device through the underground pipe 2 to a valve of the underground pit refueling port 10 of the parking lot and a refueling connection. It reaches the oil supply coupling fitting 3 as a part. Therefore, by connecting and connecting the fitting metal fitting 5, which is a joining portion at the tip of the receiving hose 4 mounted on the fuel refueling vehicle 1, to the refueling fitting fitting 3, the fuel oil pumped in the underground pipe 2 is removed. , Fuel refueling vehicle 1 is incorporated.

The fuel oil thus introduced into the fuel tank truck 1 is introduced into the vehicle-mounted machine room 6 and is closed valve, strainer, pressure control valve, filter, meter, flow control valve, venturi, etc. By passing the oil supply equipment through the oil supply pipes arranged in order, the oil supply equipment is filtered and cleaned, and is adjusted and controlled to have a predetermined oil supply pressure, flow rate, flow velocity and the like. Thereafter, the fuel oil is supplied to the aircraft 9 by the fuel supply hose 8. That is, a lifter 7, which is a refueling work table, is assembled to the fuel refueling vehicle 1 so as to be able to move up and down. Is connected to the refueling port 11, so that the fuel tank of the aircraft 9 is refueled.

Now, the connecting portion at the tip of the receiving hose 4 of the fuel refueling vehicle 1, that is, the connecting metal fitting 5 as the intake coupler is connected to the oil supply connecting metal fitting 3 as the oil supply connecting portion of the underground pipe 2 to which the fuel oil is pumped. In addition to being connectable, a moving device 12 is provided in the present invention. And the moving device 12
Is the next upper holding portion 13, lower holding portion 14, cylinder 1
5, equipped with a switching valve 16 or a regulator 17, etc.,
The coupling fitting 5 is held so as to be movable in the horizontal direction and vertically movable in the vertical direction.

These will be described in detail with reference to FIGS.
As shown in FIG. 3, first, the upper holding unit 1 of the moving device 12 is
3 fixedly holds the vicinity of the coupling fitting 5 at the tip of the receiving hose 4. That is, the coupling fitting 5 has a tip portion 18 that opens downward and a tip portion 1 through a curved portion 19.
8 is connected to the base end portion 20 at a right angle, the lower surface of the tip end portion 18 can be connected to the oil supply coupling fitting 3 of the underground pipe 2 described above, and the end of the short tubular base end portion 20 is a receiving hose. Connected to four. The upper holding portion 13 of the moving device 12 is fixed and integrated between the outer cylinder member 21 vertically arranged in the shape of two right and left round or square pipes, and between the outer cylinder members 21 horizontally arranged. And an upper connecting member 22 connected to the. Then, the upper connecting member 22 of the moving device 12
However, in the illustrated example, on the base end portion 20 of the above-described coupling fitting 5,
The upper holding portion 13 of the moving device 12 fixedly holds the joint fitting 5 of the receiving hose 4 by being connected by a bracket or bolts and nuts. It should be noted that the outer cylinder member 21 of the upper holding portion 13 is appropriately provided with a notch or an elongated hole for maintenance or the like vertically.

Next, as shown in FIGS. 1, 2 and 3,
The lower holding unit 14 of the moving device 12 is assembled such that the upper holding unit 13 can be moved up and down, and is grounded to the ground A via wheels 23. That is, the lower holding portion 14
Is a fixed pipe between the inner tubular member 24, which is vertically arranged in the shape of two right and left round or square pipes, and between the inner tubular members 24, which are horizontally placed.
Lower connecting member 25 and lower connecting member 2 that are integrally connected
The left and right wheels 23, which are free wheels provided via the fork member 26, are formed on the left and right below 5. It should be noted that the inner tubular member 24 is appropriately provided with a notch or an elongated hole vertically for maintenance or the like.

The outer cylindrical members 21 of the above-mentioned upper holding portion 13 are slidably fitted onto the outer sides of the left and right inner cylindrical members 24 of the lower holding portion 14 and are guided by the inner cylindrical member 24. While the outer cylinder member 21 can be raised and lowered, the upper holding portion 13 is assembled on the lower holding portion 14 so as to be able to move up and down. As described above, in the illustrated example, the lifting and lowering of the upper holding portion 13 is guided between the outer tubular member 21 and the inner tubular member 24. This will be described later, but this will be described later. This is to reinforce the piston rod 27, which is generally thin and weak against a lateral load in view of the fact that an air cylinder is used as the cylinder 15 interposed between the fourteen.

Next, as shown in FIGS. 1, 2, and 3,
The cylinder 15 of the moving device 12 is interposed between the upper holding portion 13 and the lower holding portion 14 and holds the upper holding portion 13 and the coupling fitting 5 on the lower holding portion 14 so as to be able to move up and down. There is. The cylinder 15 in the illustrated example is a pneumatic air cylinder, and is further installed in the left and right inner cylindrical members 24 of the lower holding portion 14 installed in the left and right outer cylindrical members 21 of the upper holding portion 13. And both cylinders 1
5 are arranged vertically and downward, and the upper end of the main body is swingably attached to the upper part of the outer cylinder member 21 of the upper holding part 13 via the connecting member 28, the horizontal connecting shaft 29, and the like. There is. At the same time, the lower ends of the piston rods 27 of both cylinders 15 are attached to the lower connecting member 25 of the lower holding portion 14 via a ball joint 30, a vertical connecting shaft 31, bolts and nuts 32, and the like.

When the cylinder 15 is inserted and the piston rod 27 of the cylinder 15 is driven forward and backward,
The upper holding portion 13 and the above-described coupling fitting 5 of the receiving hose 4 can be moved up and down on the lower holding portion 14.
The ball joint 30 is provided to absorb mounting play between the cylinder 15 and the outer cylinder member 21 of the upper holding portion 13 and between the cylinder 15 and the lower connecting member 25 of the lower holding portion 14.

Next, an air circuit as an example of the drive circuit provided in the moving device 12 will be described with reference to FIGS. 4 and 5. In both figures, reference numeral 33 denotes an air tank that is a pressure source mounted on a vehicle, and compressed air is accumulated in this air tank 33 by an attached compressor (not shown). An air pipe 34, an air hose 35, a switching valve 16 in the example of FIG. 4 are provided between the air tank 33 and the cylinder 15 which is the pneumatic air cylinder described above.
In the example of FIG. 5, the regulator 17 and the throttle valve 3 with a check valve are further provided.
6 are provided in order, and an air filter 37 and a regulator 38 are provided in the air conduit 34. Therefore, the compressed air in the air tank 33 is cleaned by the air filter 37, decompressed to a predetermined air pressure by the regulator 38, and then passed through the air hose 35 arranged along the receiving hose 4 described above. Then (see also FIGS. 1, 2 and 3), it is supplied to the cylinder 15 via the switching valve 16 in FIG. 4 and the regulator 17 in FIG. The regulator 38 of the air pipe 34 allows the piston to operate even if compressed air is supplied to the cylinder 15 by erroneously switching the switching valve 16 while the coupling fitting 5 is connected to the oil supply coupling fitting 3. The compressed air is depressurized to an air pressure at which the rod 27 is not driven forward, so that the coupling fitting 5
The entire moving device 12 is prevented from being damaged. 39 is a pressure gauge attached to the regulator 38.

In the air circuit shown in FIG. 4, the switching valve 16 is used. The switching valve 16 is attached to the outer cylinder member 21 of the upper holding portion 13 in the illustrated example and serves as a pressure source. Compressed air, which is a pressure fluid from the air tank 33, can be supplied to, sealed in, and exhausted from the cylinder 15 by switching the operation lever 40.

That is, first, when the switching valve 16 is switched to supply compressed air to the base end side of the main body of the cylinder 15, the piston rod 27 of the cylinder 15 is driven forward, so that the outer cylinder member 21 and the upper holding member are held. The part 13, the fitting 5, and the like rise. At this time, the air on the tip side of the cylinder 15 main body is exhausted through the filter 41. Next, when the switching valve 16 is switched to the position shown in the figure in order to seal the compressed air to the cylinder 15 in this state, the compressed air is confined to the base end side of the cylinder 15 main body portion, so that the piston rod of the cylinder 15 is closed. Numeral 27 holds the state of being driven forward, so that the outer cylinder member 21, the upper holding portion 13, the coupling fitting 5 and the like also hold the elevated position separated from the ground A. Further, in order to exhaust the compressed air in the cylinder 15, the switching valve 16
When the switch is operated from the position shown in the figure, the compressed air on the base end side of the main body of the cylinder 15 is exhausted from the switch valve 16 via the throttle valve with a check valve. As a result, the piston rod 27 of the cylinder 15 is driven backward, and the outer cylinder member 21, the upper holding portion 13, the coupling fitting 5 and the like are lowered from the raised position. Since it is set so as to be controlled slowly in advance, these descending speeds are gentle and safe. Then, in order to maintain such a lowered state, the switching valve 16 is again switched to the position shown in the figure, and the piston rod 27 of the cylinder 15 is maintained in the backward driven state. The holding portion 13, the coupling fitting 5 and the like are also held at a predetermined lowered position.

Further, in the air circuit shown in FIG. 5, a regulator 17 is used instead of such a switching valve 16. The regulator 17 is an air tank 3 which is a pressure source.
By adjusting the air pressure of the compressed air, which is the pressure fluid from 3 to the cylinder 15, the upward urging force of the cylinder 15, that is, the forward drive force of the piston rod 27, and the upper holding portion 13, the coupling fitting 5, and a part of the receiving hose 4. The weights such as the above are always balanced, and these are held on the lower holding portion 14 in a substantially weightless floating state. Therefore, when such a regulator 17 is used, the switching valve 16 is not required to be switched, and only a slight force is applied upwards or downwards, that is, by pushing or pulling with a hand, the cylinder 15 is removed. The tubular member 21, the upper holding portion 13, the coupling fitting 5, etc. can be raised and lowered freely. Reference numeral 42 in FIG. 2 denotes a wheel, and the wheel 42 holds the intermediate portion of the receiving hose 4 on the ground A via the mounting portion 43.

The present invention is constructed as described above.
Then it becomes as follows. As shown in FIG. 6 and FIG.
In this fuel refueling vehicle 1, upon refueling, after the vehicle is parked under the aircraft 9, the receiving hose 4 mounted on the vehicle moves to the vicinity of the refueling coupling metal fitting 3 of the underground pipe 2 of the underground pit fuel refueling opening 10 together with the coupling metal fitting 5 at its tip. Be moved. Then, the connecting fitting 5 at the tip of the receiving hose 4 is fitted and connected to the oil supply connecting fitting 3 of the underground pipe 2 opened upward while adjusting the height and the angle. Then, the fuel oil pumped in the underground pipe 2 is taken into the fuel refueling vehicle 1 via the refueling coupling metal fitting 3, the coupling metal fitting 5, the receiving hose 4, etc., and the in-vehicle machine room 6
After passing through the refueling device, the refueling hose 8 refuels the aircraft 9.

Now, as shown in FIGS. 1, 2 and 3,
This fuel refueling vehicle 1 is provided with a moving device 12 for the coupling fitting 5 of the receiving hose 4. And this moving device 12
The upper holding portion 13 is fixed to the base end portion 20 of the coupling fitting 5 at the tip of the receiving hose 4, and the upper holding portion 13 is mounted on the lower holding portion 14 with the wheels 23 so as to be able to move up and down through the cylinder 15. It becomes. In the example of FIG. 4, compressed air is supplied from the air tank 33 to the cylinder 15,
A switching valve 16 capable of sealing and exhausting is provided, and in the example of FIG. 5, a regulator 17 for adjusting the air pressure of compressed air from the air tank 33 to the cylinder 15 is provided.
The upper holding portion 13, the coupling fitting 5, a part of the receiving hose 4 and the like are held on the lower holding portion 14 in a substantially weightless floating state. With these, the moving device 12 holds the coupling fitting 5 so that it can move in the horizontal and horizontal directions and can also move up and down in the vertical and substantially vertical directions.

Since the moving device 12 is provided, the fuel hose 1 moves the vehicle-mounted receiving hose 4 and its fitting 5 to the oil fitting 3 of the underground pipe 2. At first, in the example of FIG. 4, the switching valve 16 is switched to supply compressed air to the cylinder 15, and in the example of FIG. 5, a slight upward force is applied. As a result, as shown in FIG. 2, the coupling fitting 5 of the receiving hose 4 that has been temporarily laid down on the ground A near the fuel tanker vehicle 1 is fixedly held by the upper holding portion 13 of the moving device 12, as shown in FIG.
By the forward drive of the piston rod 27 of the cylinder 15,
It is lifted to a lifted position on the lower holding part 14 away from the ground A. Then, in the example of FIG. 4, the switching valve 16 is switched to seal the compressed air in the cylinder 15, and in the example of FIG.
The piston rod 27 holds the piston in a raised position. Then, the wheels 23 of the lower holding section 14 roll on the ground A, so that the coupling fitting 5 held in the cylinder 15 and the upper holding section 13 at the elevated position separated from the ground A travels together with the receiving hose 4. Be moved.

In this manner, after being moved to the underground pit oil supply port 10, that is, near the oil supply coupling fitting 3 of the underground pipe 2 and stopped, the switching valve 16 is switched in the example of FIG. 4 to compress the cylinder 15. By exhausting the air and applying a slight downward force in the example of FIG. 5, the coupling fitting 5 held by the upper holding portion 13 causes the piston rod 27 of the cylinder 15 to move.
Is driven backward to move it down from the raised position. Then, the height and angle of the joint fitting 5 are adjusted so that the lower surface of the tip portion 18 corresponds to and abuts the upper surface of the oil supply joint fitting 3 of the underground pipe 2, and at a place where the height and angle are appropriate. In the example of FIG. 4, the switching operation of the switching valve 16 is performed, and
In the example of FIG.
The coupling rod 5 is held by the piston rod 27 at the adjusted height and angle. In this way, as shown in FIG. 3, the fitting 5 of the receiving hose 4 is fitted and tightly connected to the oil supply fitting 3 of the underground pipe 2. It should be noted that the ground A around the fuel filler opening 10 in the underground pit, in which the fuel filler fitting 3 is housed, is slightly raised as shown in FIG. 3 to prevent the inflow of rain. The connection to the refueling fitting 3 was troublesome, but even in such a situation, the moving device 12 realizes a smooth connection as described above.

Then, refueling is performed. When refueling is completed, the connection fitting 5 and the refueling connection fitting 3 are released from the tight connection and connection, and then the switching valve 16 is switched to supply compressed air to the cylinder 15 in the example of FIG. By applying a slight force to the fitting hose 4 of the receiving hose 4, the fitting 5 is raised to the raised position again as shown in FIG. Thereafter, the coupling fitting 5 is moved from the vicinity of the refueling coupling fitting 3 of the underground pipe 2 to the fuel refueling vehicle 1 according to the above description, and then mounted on the fuel refueling vehicle 1 together with the receiving hose 4.

By the way, in order to shorten the refueling time to the aircraft 9, a large amount of fuel is refueled and a large amount of fuel oil is refueled at one time. A large one is used, and the connecting fitting 5 at its tip is also large in shape and heavy in weight. By using the moving device 12 as described above, the work is simplified and facilitated. That is, the connecting fitting 5 of the large and heavy receiving hose 4 is easily and easily moved, and its height and angle are easily and easily adjusted and connected to the oil supply connecting fitting 3 of the underground pipe 2.

First, in the illustrated embodiment, the air cylinder is used as the cylinder 15 of the moving device 12, but the present invention is not limited to this, and for example, a hydraulic cylinder may be used. Of course, in that case, a hydraulic tank or hydraulic pump is used as the pressure source instead of the air tank 33, and the air conduit 34 and the air hose 35 are used.
Instead, a hydraulic line or hydraulic hose is used. The second
In the illustrated embodiment, the metal fitting 5 is used as the connecting portion of the receiving hose 4 and the oil supply metal fitting 3 is used as the oil connecting portion of the underground pipe 2, but the present invention is not limited to this. Instead, for example, a hard resin joint or an oil filler joint may be used.

Thirdly, in the illustrated embodiment, the wheel 23 is provided below the lower connecting member 25 of the lower holding portion 14 of the moving device 12 via the fork member 26. The angle and positional relationship are set as follows. That is, first, as shown in FIG. 2, when the upper holding part 13 and the coupling fitting 5 are moved in the raised position, the lower connecting member 25 of the lower holding part 14 takes a horizontal posture and the connecting shaft 31 moves. It takes a vertical posture, the cylinder 15 is slightly inclined, and the wheel 23 is inserted through the fork member 26.
Is located just below these. As a result, the wheels 23 are smoothly rolled, and traveling and movement are easy. On the other hand, as shown in FIG. 3, when the upper holding portion 13 and the coupling fitting 5 are lowered, the cylinder 15 takes a vertical posture, the connecting shaft 31 and the lower connecting member 25 are slightly inclined, and the fork is moved. The wheel 23 is located rearward of the position directly below them via the member 26. As a result, the wheels 23 are less likely to roll and are not suitable for movement, but come to a stable stop.

Fourthly, in the moving device 12 of the illustrated embodiment, the upper holding portion 13 is composed of the left and right outer tubular members 21 and the upper connecting member 22 between them as shown in FIG. Correspondingly, the lower holding portion 14 is composed of the left and right inner tubular members 24 and the lower connecting member 25 (with the wheels 23) between them,
The upper connecting member 22 fixedly holds the fitting 5, and both cylinders 15 are mounted between the outer connecting member 21 and the lower connecting member 25 via the inner connecting member 24. The moving device 12 may of course have a more simplified structure, not depending on the illustrated embodiment.

For example, the following simplified moving device 12 can be considered. That is, the upper holding portion 13 is
The lower holding portion 14 is composed of only an upper connecting member 22 that fixedly holds the coupling fitting 5, and the lower holding portion 14 is divided into right and left, and is a small plate-shaped left and right lower connecting member 25. Each of them is provided with a wheel 23 attached thereto. The main body of both cylinders 15 is directly attached to the left and right of the upper connecting member 22, and the lower end of the piston rod 27 of each of the cylinders 15 is provided only with the lower holding portion 14 formed of a small plate-shaped lower connecting member 25.
It is also possible to have a configuration in which it is directly attached to the. Then, in such a moving device 12, the upper holding portion 13 is assembled to the lower holding portion 14 so as to be able to move up and down and moved up and down only by the cylinder 15, and the cylinder 15 serves as the piston rod 27. A large diameter is selected and used that can withstand a lateral load sufficiently.

[0035]

As described above, the moving device of the receiving hose connecting portion of the fuel tank truck according to the present invention fixes the upper holding portion near the connecting portion at the tip of the receiving hose and also fixes the upper holding portion. A lower holding portion with wheels is assembled via a cylinder so that it can be moved up and down. A switching valve is provided between the cylinder and its pressure source in claim 1, and a regulator for adjusting the pressure in a predetermined manner is provided in claim 2. Therefore, the following effects are exhibited.

That is, the connecting portion of the large and heavy receiving hose can be easily and easily moved, and the height and angle can be easily and easily adjusted to connect to the underground pipe side. In other words, compared with the conventional example of this kind described above, such moving work and connecting work are carried out while lifting and holding from the ground while relying only on human power using the limbs of the worker. Is easy and easy. In this way, the worker can easily and easily perform the moving work and the connecting work, the labor is reduced, and the fatigue and back pain of the worker are eliminated. As described above, the effects of the present invention are remarkably large, such as the problems existing in this type of conventional example are eliminated.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a moving device for a receiving hose coupling portion of a fuel tank truck according to the present invention.

FIG. 2 is a side view of the embodiment, showing a moving state.

FIG. 3 is a side view of the embodiment, showing a state in which the joint portion is connected to the refueling joint portion.

FIG. 4 is an air circuit diagram of the same embodiment, showing an example thereof.

FIG. 5 is an air circuit diagram of the embodiment, showing another example.

FIG. 6 is a perspective view of a fuel refueling vehicle.

FIG. 7 shows a state of refueling an aircraft by a fuel refueling vehicle,
(1) is a perspective view, and (2) is a plan view.

[Explanation of symbols]

 1 Fuel Refueling Vehicle 2 Underground Piping 3 Refueling Coupling (Refueling Coupling) 4 Receiving Hose 5 Coupling (Coupling) 8 Refueling Hose 9 Aircraft 12 Moving Device 13 Upper Retaining Part 14 Lower Retaining Part 15 Cylinder 16 Switching Valve 17 Regulator 23 Wheel 33 Air tank (pressure source)

Claims (2)

[Claims] 1. A fuel refueling vehicle for refueling an aircraft with fuel oil taken from a receiving hose via a refueling device, the fuel refueling vehicle being attached to a tip of the receiving hose,
A moving device of a connecting part connectable to an oil supply connecting part of an underground pipe to which fuel oil is pumped, wherein an upper holding part for fixedly holding the vicinity of the connecting part and the upper holding part are assembled so as to be able to move up and down. And a lower holding portion grounded via wheels, a cylinder interposed between the upper holding portion and the lower holding portion and capable of moving up and down the upper holding portion, the connecting portion, and the like on the lower holding portion; A moving device for a receiving hose coupling part of a fuel tanker vehicle, comprising: a switching valve capable of supplying, sealing, and exhausting pressurized fluid to the cylinder. 2. A regulator is used in place of the switching valve, and the regulator adjusts the pressure of the pressure fluid from the pressure source to the cylinder to increase the upward biasing force of the cylinder and the upper holding portion. , A connecting portion, a part of the receiving hose and the like are constantly balanced, and these are held in a substantially weightless floating state on the lower holding portion. Moving device for hose connection.