JPH0110245Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention includes a refueling vehicle equipped with refueling equipment such as a filter and a pressure regulating valve, and a work platform that is configured to be able to be raised and lowered by a lifting device on a movable trolley base. The present invention relates to a coupling device for connecting the refueling vehicle and the refueling truck in a refueling system including a refueling truck.

First, the conventional technology and the problems that the invention attempts to solve will be described.

Conventionally, a normal refueling truck has been provided with a work platform that can be raised and lowered above a machine room in which refueling equipment such as a filter, a pressure regulating valve, and a flow meter are arranged. When supplying fuel to an aircraft, the refueling truck is parked so that the work platform is located below the fuel filler port of the aircraft's fuel tank, and the worker stands on the work platform and winds the hose onto a hose reel. The worker was refueling by connecting the fitting at the end of the refueling hose to the fuel tank's refueling port.

Normally, the filler port for the fuel tank opens on the underside of the aircraft's wing, and in order to prevent danger, reversing cars is prohibited at airports.
When refueling while riding on a work platform provided on a refueling vehicle, the refueling vehicle must be able to pass under the wings of the aircraft. If a refueling truck passes under the wing, there is a risk of an accident such as collision with an aircraft.

In addition, regarding such refueling vehicles, if the aircraft is small or medium-sized and the wing position is low and the refueling vehicle cannot be parked below the refueling port, or if the aircraft is refueled at a servicer that is not equipped with a fuel tank. Even if the aircraft's wings are high enough to allow a refueling truck to pass through, the aircraft may be parked far from the refueling port on the ground for some reason. Because there is a limit to the length of the suction hose installed on the refueling vehicle, the refueling vehicle cannot enter the lower part of the refueling port, and therefore refueling cannot be performed on the workbench above the refueling vehicle. Nakatsuta.
There, the heavy refueling hose wrapped around the hose reel of the refueling tank parked at a distant location, filled with fuel, was extended to the lower part of the refueling port, and a step stool, work platform, etc., suitable for each aircraft was installed. Refueling work was extremely difficult because it required preparing and refueling.

In order to eliminate the above-mentioned drawbacks of the conventional technology, the present invention consists of a refueling vehicle equipped with refueling equipment and a self-propelled refueling trolley equipped with a separate liftable work platform configured to be connectable to the refueling vehicle. During refueling, the refueling hose wound around the hose reel of the refueling car is stretched out, and the refueling trolley is driven under the wing, and the work platform is raised to an appropriate height to supply fuel to the aircraft. A refueling device configured to do this has been developed.

However, when moving within an airport for refueling or after refueling, this refueling device is generally connected to a refueling vehicle so as to lift the drive rear wheel end of the refueling truck, or is towed by a refueling vehicle. The structure was such that each wheel of the trolley was connected to the ground for traction. Therefore, there is a problem in the maneuverability of the refueling vehicle, especially when the vehicle is reversed in a connected traction state when turning or storing in a garage, and there is a concern that an accident may occur.

This point was pointed out in the conventional example.

The present invention has been developed in view of the above-mentioned circumstances, and although it has a simple configuration, it can completely raise and lower the refueling trolley by an extremely simple operation of lifting and lowering the lifting device of the refueling trolley. We proposed a coupling device between a refueling vehicle and a refueling trolley that can be suspended and connected to a refueling vehicle in a lifted state, as well as disconnecting the connection, thereby improving the maneuverability of the refueling vehicle when moving within an airport. , some aimed at improving safety and mobility.

The technical means of the present invention to achieve this objective are as follows.

The present invention is a coupling device between a refueling vehicle equipped with refueling equipment such as a filter and a pressure regulating valve, and a refueling trolley, which is equipped with a work platform that can be raised and lowered by a lifting device on a movable trolley base. Regarding. A frame member is provided upright at the rear end of the refueling vehicle, and a support member is provided to protrude rearward from the frame member. Further, the elevating device for the refueling trolley includes a fixed post erected from the trolley base, and a movable post attached to the fixed post so as to be movable up and down by an elevating operation, and a locking member protrudes from the movable post. It's set up and looks nice.

The locking member is in a positional relationship to engage with the support member when the movable post is at a predetermined height based on the lifting/lowering operation of the lifting device, and the refueling trolley can be connected to the refueling vehicle. There is. The movable post and the fixed post are in a relationship to lift the truck base from the ground based on the lifting and lowering operation of the lifting device when the locking member and the support member are engaged, and the refueling truck is attached to the refueling vehicle. It is possible to hang it.

The present invention is based on such means.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

First, the configuration will be explained.

In FIGS. 1 and 2, 1 is a refueling vehicle, and a machine room 3 provided on a vehicle body 2 of this refueling vehicle 1 includes a strainer 4, a pressure regulating valve 5, a filter 6, a flow meter 7, etc. It is equipped with a refueling device 8. One end of a pipe 9 that sequentially connects these refueling devices 8 is connected to a suction hose 11 held on hose supports 10, 10 provided around the vehicle body 2 during driving, and the other end is connected to a suction hose 11 held by hose supports 10, 10 provided around the vehicle body 2.
It is connected to a refueling hose 13 wound around a hose reel 12 installed at the rear of the tank.

Reference numeral 14 denotes a frame member erected at the rear end of the vehicle body 2, and support members 17, 17 are protruded from the frame member 14. That is, these supporting members 17, 17
are mounting members 15, 15 installed horizontally on the frame member 14.
A hook 16 with an open top is provided at the tip of each hook 16 through the hook 16, and the hook 16 projects rearward as shown in the figure. Moreover, these supporting members 17, 17 are
In the refueling trolley 20 in the uncoupled state, which will be described later, with the movable posts 23, 23 of the lifting device 22 provided on the refueling trolley 20 raised to a predetermined height, the outer surfaces of the movable posts 23, 23 are placed at predetermined positions in the vertical direction. two pairs of locking members 3 protruding from each other at a predetermined interval;
They are provided in a protruding manner in a positional relationship corresponding to the respective positions of 0 and 30.

20 is a refueling trolley having self-propelled means (not shown), 21 is a movable trolley base of the refueling trolley 20, and 22 is a lifting device installed on the trolley base 21; is structured as follows. That is, 23, 23 are movable posts that are slidably fitted onto a pair of fixed posts 24, 24 that are erected at the rear end, which is one end of the truck base 21. The movable posts 23, 23 are attached to fixed posts 24, 24 so as to be movable up and down as shown in the figure, by lifting and lowering operations using hydraulic cylinders (not shown). Reference numeral 25 denotes a workbench that is configured to move up and down in accordance with the up and down movement of the lifting device 22. On this workbench 25, a refueling hose 13 is installed.
The holding device 2 for the connection fitting 26 provided at the tip of the
7. Handle 28 for operating the refueling trolley 20;
An operating section 29 and the like are provided for raising and lowering the workbench 25, remotely controlling the refueling equipment 8, and the like.

Reference numerals 30, 30, . . . denote two pairs of locking members each having an annular engaging portion 31 horizontally connected to the distal end thereof. These locking members 30, 30... are located at respective positions of the respective supporting members 17, 17... when the movable posts 23, 23 are raised to a predetermined height by the lifting/lowering operation of the lifting device 22 mentioned above. The proximal ends of the movable posts 23, 23 are fixed to and protrude from the outer surfaces of the movable posts 23, 23 in a correspondingly engageable positional relationship. Therefore, each locking member 30, 3
0... and the respective supporting members 17, 17..., the refueling trolley 20 can be connected to the refueling vehicle 1.

In addition, the above-mentioned movable posts 23, 23 and fixed post 2
4 and 24, as shown in Figures 3 to 4,
Each locking member 30, 30... and each support member 17, 17
The length relationship is set to be sufficient to lift the truck base 21 from the ground based on the lifting and lowering operation using the hydraulic cylinder of the lifting device 22 in the engaged state. Therefore, by lifting the truck base 21 in this manner, the refueling truck 20 can be suspended from the refueling vehicle 1.

The above is the explanation of the configuration.

Next, the operation of the connecting device of the present invention constructed as above will be explained.

First, when connecting the uncoupled refueling truck 20 to the refueling vehicle 1, the refueling truck 20 is driven so that the rear end of the parked refueling vehicle 1 and the rear end of the refueling truck 20 are connected. The vehicles are parked at positions facing each other with a predetermined interval between them. Next, the lifting device 22 is operated up and down to raise the movable posts 23, 23 slightly higher than the predetermined height, and each support member 1
7, 17, . . . so that the respective locking members 30, 30, . . . can be engaged.

After that, refueling car 1 or refueling trolley 20
Either one of them is driven until each annular engaging portion 31, 31... is positioned above each hook 16, 16... and then parked (the state shown in FIG. 3). Next, the lifting device 22 is raised and lowered, and first the movable posts 23, 23
When lowered, the respective annular engaging portions 31, 31... are engaged with the respective hooks 16, 16..., and the trolley base 21 of the refueling trolley 20 is lifted.

In this way, as shown in FIG. 4, the refueling truck 20 is suspended and connected to the rear of the refueling vehicle 1.

Further, when the refueling trolley 20 in such a connected state is to be disconnected from the refueling vehicle 1, the operation opposite to the above may be performed.

The above is an explanation of the effect.

In addition, in this embodiment, a configuration in which the suspended connection state is maintained by two pairs of supporting members 17, 17 and locking members 30, 30 has been described, but the configuration of the connecting device is limited to this. isn't it. For example, as shown in FIG. 5, it is configured to be connected by a pair of support members 17 and a locking member 30, and a refueling trolley 20 suspended and connected is placed in a substantially horizontal state below these connecting members. The support member 40 for stably holding the vehicle may be provided in a protruding manner on either or both of the refueling vehicle 1 and the refueling trolley 20. Also, the support member 1
7. The structure of the locking member 30 is not limited to the embodiment.

The structure and operation of the coupling device between a refueling vehicle and a refueling trolley according to the present invention have been explained above, but the present invention is not limited to this, and the design can be changed as desired without changing the gist of the invention. It is.

The above is the explanation based on the embodiment.

As is clear from the above description, the present invention has the configuration as described in the claims, so although it has a simple configuration, it is extremely simple to operate only the lifting and lowering of the lifting device of the refueling trolley. This makes it possible to suspend the refueling trolley in a fully lifted state and uncouple it, thereby improving the maneuverability, safety, and maneuverability of the refueling vehicle when moving within the airport. It has remarkable practical effects, such as greatly contributing to improving sexual performance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view showing a refueling vehicle equipped with the coupling device of the present invention and a refueling trolley in a disconnected state, FIG. 2 is a plan view, and FIG. 3 is a plan view. 4 is an explanatory diagram showing a connection preparation state, FIG. 4 is an explanatory diagram showing a connection state, and FIG. 5 is a side view of another embodiment. In the figure, 1 is a refueling vehicle, 5 is a pressure regulating valve, 6 is a filter, 8 is a refueling device, 14 is a frame member, 17 is a support member, 20 is a refueling trolley, 21 is a trolley base,
22 is a lifting device, 23 is a movable post, 24 is a fixed post, 25 is a work table, and 30 is a locking member.

Claims (1)

[Scope of Claim for Utility Model Registration] A refueling vehicle equipped with refueling equipment such as a filter and a pressure regulating valve, and a refueling trolley equipped with a work platform that can be raised and lowered by a lifting device on a movable trolley base. The coupling device includes a frame member erected at the rear end of the refueling vehicle, and a support member protruding rearward from the frame member, and a lifting device for the refueling truck. , comprising a fixed post erected from a trolley base, and a movable post attached to the fixed post such that it can be raised and lowered by lifting and lowering operations, a locking member protruding from the movable post, and the locking member is in a positional relationship to engage with the support member when the movable post is at a predetermined height based on the lifting/lowering operation of the lifting device, and the refueling truck can be connected to the refueling vehicle, and the movable post and the fixed post are in a relationship that lifts the trolley base from the ground based on the lifting and lowering operation of the lifting device when the locking member and the support member are engaged, so that the refueling trolley can be suspended on the refueling vehicle. A coupling device for a refueling vehicle and a refueling trolley, which is characterized by: