JPH0116759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refueling device, and particularly to a connection structure between a refueling machine and a refueling hose.

[Prior Art] As is well known, in a stand-type refueling device, vehicles to be refueled stop on both sides of an island to perform refueling operations. Some car fuel tanks have refueling ports on the right side of the vehicle, while others have them on the left. Therefore, if the refueling port is on the opposite side of the vehicle, workers may have to pull the refueling hose quite strongly. There is a tendency to forcefully refuel. On the other hand, since the length of the refueling hose is limited by law, it is known that the attachment part of the refueling hose can be moved laterally in order to solve the above-mentioned problems. However, even if the hose can be moved laterally, depending on the parking position, the hose may still be pulled forcibly.

In particular, in the conventional technology, the refueling hose is connected to the discharge pipe pointing downward from the ceiling of the refueling machine, so when the refueling hose is pulled to the side for refueling,
The refueling hose is bent at the connection with the discharge pipe, and as a result, the refueling hose is easily damaged. Furthermore, since the refueling hose is bent, the refueling range is narrowed by the bend.

For this purpose, it has been proposed that the discharge pipe protruding downward is bent 90 degrees, a universal joint or swivel joint is provided, and a refueling hose is connected via a 90-degree bent pipe.

However, in this case, the swivel joint rotates around one horizontal axis, so the refueling hose is placed in a vertical plane passing through the bend pipe at right angles to the rotation axis (horizontal axis) of the swivel joint. There is no problem when moving the hose, but if the refueling port of the car's fuel tank is located far from the vertical plane, the refueling hose will bend at the bend pipe connection. In other words, one swivel joint is good for pulling the refueling hose in a specific direction, but
If the refueling hose is pulled in any other diagonal direction, for example, it will bend.

For this purpose, it is conceivable to provide the downwardly extending discharge pipe with a swivel joint that allows it to rotate around a vertical axis. However, if you provide a swivel joint that rotates around a vertical axis, the swivel joint will move in the horizontal plane.
Since it can rotate 360 degrees, the tip of the discharge pipe bent 90 degrees will swing around, and if there is a refueling machine case within the radius of rotation, it will bump into it.
For this reason, the discharge pipe must be provided at a location away from the case of the refueling machine. This necessarily requires that the ceiling of the refueling machine be extended relatively long. In a normal stand-type refueling system, the ceiling of the refueling machine is just about the height of the worker's head, so if the ceiling extends like that, it not only gets in the way of refueling work, but also There is a risk that personnel may hit their heads.

[Object of the Invention] Accordingly, an object of the present invention is to provide a refueling device in which the refueling hose can be pulled in any direction without bending, and the ceiling portion does not protrude.

[Structure of the Invention] The refueling device of the present invention has a discharge pipe suspended horizontally from an overhang of the ceiling and a refueling hose connected to the discharge pipe, and the rotation center axis extends in the vertical direction. The first swivel has a rotation center axis that intersects the rotation center axis of the first swivel, and the intersection of the rotation center axis and the rotation surface is located on the rotation center axis of the first swivel. and a second swivel, and the discharge pipe and the refueling hose are connected via a universal joint made up of the first swivel and the second swivel.

[Function] According to the present invention, no matter which direction the refueling hose is pulled, the connecting portion of the refueling hose can be easily oriented in any direction by the universal joint made of the first and second swivels. . Therefore, the entire length of the refueling hose can be effectively utilized without bending the refueling hose, and the refueling range can be expanded accordingly. Here, the second swivel is configured such that when the refueling hose is pulled downward, the axis of the discharge pipe and the axis of the refueling hose coincide. Therefore, the refueling hose does not collide with the casing of the refueling machine, and the overhang of the ceiling of the refueling machine can be shortened.

[Preferred Embodiment] In carrying out the present invention, a first swivel connected to the discharge pipe is a horizontal swivel capable of rotating horizontally around a vertical axis, and a second swivel connected to the horizontal swivel is , a vertical swivel that can pivot about a horizontal axis, or a tilted swivel that can pivot about an inclined axis.

[Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 shows a stand-type refueling device according to the present invention. This refueling device M is known per se, and is installed on an island E, with a housing section 10 for equipment, a display section 11, and a ceiling section 12. It has
A discharge pipe 13 to which the refueling hose H is attached is movably provided along the side surface of the ceiling portion 12 and projects downward.

A refueling nozzle N is connected to the downstream end of the refueling hose H. A universal joint, generally designated by S, is provided on the downstream side, ie, at the lower end, of this discharge pipe 13, and the discharge pipe is connected to a refueling hose H via this universal joint S.

In the embodiment shown in FIGS. 2 and 3, the discharge pipe 13 is attached to a truck 16 movably supported by wheels 15, 15 that can run on a pair of rails 14, 14, and The side is connected to an underground tank via a flexible pipe 17 and a flow meter and pump (not shown). and discharge pipe 1
On the downstream side of 3, there is a first swivel S that can rotate in a horizontal plane around a vertical axis, and a rotation surface T (a rotation surface that has an inclination of about 45 degrees with respect to the horizontal plane).
A refueling hose H is connected via a universal joint S consisting of a second swivel S2 that can rotate around the swivel S2.

Therefore, no matter which direction the refueling hose H is pulled, it can be followed by the first and second swivels, and the refueling hose H can face in that direction without bending. and the first swivel S1
When the intersection of the rotation center X1 of the second swivel S2 and the rotation surface T is located on the rotation center X2 of the second swivel S2, and the hose H is suspended, the discharge pipe 13 and
Since it is configured so that the hose H is in a straight line,
Since the universal joint S does not protrude too much and as a result does not come into contact with the case, the ceiling part 12 does not need to protrude too much.

The embodiment shown in FIGS. 4 and 5 is substantially the same as the embodiment shown in FIGS. 2 and 3, so all corresponding parts have been designated by the same reference numerals. However, in this embodiment, the second swivel S3 is a vertical swivel that can rotate in a vertical plane around a horizontal axis, and the rotation center X2 of the first swivel S1 and the rotation center X of the second swivel S2 are
This differs from the previous embodiment in that the universal joint S is constructed so that it does not protrude much by orthogonally intersecting the universal joint S with 1.

[Summary] As described above, according to the present invention, since the universal joint S, which is composed of the first and second swivels and can rotate three-dimensionally, is used, even when the refueling hose H is pulled,
The refueling hose H does not bend, and therefore the refueling range can be expanded compared to a refueling hose of a certain length.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a refueling device implementing the present invention;
Fig. 2 is a side view showing an embodiment of the connection between the discharge pipe and the refueling hose, Fig. 3 is a front view showing the place where the refueling hose is pulled laterally in Fig. 2, and Fig. 4 is another embodiment. Side view similar to figure 2 showing an example, figure 5
This figure is a front view showing the embodiment of FIG. 4 when the refueling hose is pulled laterally. 13...Discharge pipe, S1...First swivel, S
2, S3...Second swivel, S...Universal joint, H
...Refueling hose.

Claims (1)

[Claims] 1. In a refueling device in which a discharge pipe is horizontally movably suspended from an overhang of a ceiling and a refueling hose is connected to the discharge pipe, a first swivel whose rotation center axis extends in the vertical direction; a second swivel having a rotational center axis that intersects the rotational center axis, and an intersection between the rotational center axis and the rotation surface is located on the rotational center axis of the first swivel; A refueling device characterized in that a discharge pipe and a refueling hose are connected through a universal joint consisting of a swivel and a second swivel.