JPH0219440Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present application relates to a refueling nozzle used when refueling an automobile with an oil liquid such as gasoline at a refueling station.

(b) Prior art In a refueling system in which a hose and a nozzle are hung from above the refueling point, when the nozzle is released at the end of refueling, the discharge pipe side automatically faces upward to prevent oil droplets from falling. The automatic upward type is preferred and used.

(c) Problems that the invention aims to solve However, since all the nozzles adopted by the automatic upward movement method use the upward movement method using their own weight, the nozzle body and hose must be connected closer to the discharge pipe than the center of gravity of the nozzle. As a result, the load of the hose acts on a position away from the gripping hand, which places a large burden on the wrist due to the principle of leverage.Furthermore, the nozzle body and the hose are connected through an L-shaped rotary joint. Because they are connected, the load of the hose also applies torsional force to the nozzle, making long-term refueling operations difficult.

(d) Structure and operation to solve the problem Therefore, in this application, the hose connection part to the nozzle main body is provided near the gripping hand, and an automatic upward movement method using a spring is adopted and a device is added to solve the above problem. In other words, in a refueling nozzle that is composed of a cylindrical main body with a flow path inside, a discharge pipe connected to or formed therein, and a grasping hand, the upper end is positioned in the direction of the discharge pipe. By tilting it down, a cylindrical boss part having a central axis diagonally intersecting with the cylindrical central axis of the main body part is formed near the gripping hand formation position, and the external dimension is smaller than the outer diameter of this boss part. The boss part and the oil supply hose are connected through a spherical universal watertight joint having a watertight joint, and the inner circumference of one end of the coil spring is closely fixed to the outer periphery of the boss part, and at least the other end of the coil spring covers the watertight joint. It is set to the length.

(e) Embodiment In the figure, reference numeral 2 denotes a main body of a nozzle N having a cylindrical outer shape, and a valve (not shown), which is opened and closed by operating a lever 4, is provided in the flow path inside the main body.

8 is a discharge pipe connected to one end of the main body 2, and 10 is a grip formed at the other end.

Reference numeral 12 denotes a cylindrical boss, whose center line X and the center line Y of the main body 2 are at a non-perpendicular angle, and the upper surface of the boss 12 is slightly inclined toward the discharge pipe 8. The section 14 is connected to the flow path of the main body section 2.

Reference numeral 16 designates a connecting block that has a fitting portion with the spherical portion 18 of the spherical universal watertight joint 20 and also has a connecting portion with the boss portion 12.

Reference numeral 22 designates a cap nut that presses the spherical portion 18 toward the connecting block 16, and is screwed onto the connecting block 16.
It can be rotated or tilted freely within the range of .

Reference numeral 28 denotes a coil spring, which is tightly wound with stress remaining in the direction in which each turn is brought into close contact with each other. 12, the two will essentially be stuck together.

30 is a connecting end of the joint 20 with a hose fitting 32, the outer diameter of which is machined to be smaller than the inner diameter of the spring 28; 34 is a refueling hose; 36 is a refueling hose;
38 is an annular sealing material that closes the gap between the spherical part 18 and the connecting block 16; 38 is a set screw that fixes the connecting block 16 to the boss part 12; 40 is an oil passage formed through the spherical part 18, and is connected to the hose 34. Hollow part 14
It communicates with

Further, G is the center of gravity of the nozzle N.

In the above configuration, when the nozzle N is in a suspended state when not in use, the restoring force of the spring 28 causes the nozzle N to shift due to its center of gravity G as shown in FIG.
counterclockwise rotation is prevented, and the discharge pipe 8 is prevented from turning downward.

When refueling, if you hold the gripping hand 10 to support the nozzle N, the load on the hose 34 acts from directly above the gripping hand, and the hose load is doubled due to the principle of leverage on the wrist, and the nozzle N is twisted in the direction There is no force acting on it.

In order to insert the discharge pipe 8 into the oil supply port (not shown), the nozzle N can be tilted by bending the spring 28 as shown in FIG. The part is the spring 28
slides on the inner surface, and can be bent with less force than when both ends of the spring are fixed together. By operating the lever 4 in this state, a valve (not shown) opens and oil is supplied.

When the grip is released after refueling, the restoring force of the spring 28 automatically moves the nozzle N to the first,
The situation returns to the state shown in FIG. 2, and the inconvenience caused by oil droplets dripping from the tip of the discharge pipe 8 does not occur.

(f) Effect As mentioned above, since the hose is connected via the spherical universal watertight joint near the grasping hand, there is no large load or torsional force applied to the wrist that holds the grasping hand, which makes the work easier. The shape of the upward coil spring is easier because the boss is tilted toward the direction of the discharge pipe, and the external dimensions of the joint are smaller than the inner diameter of the coil spring, reducing the length of the coil spring. Since the length is set to cover this joint, the spring can be easily bent, which means that the nozzle can be easily controlled, and an automatic upward refueling nozzle can be obtained that allows the nozzle to be operated in all circumferential directions without difficulty. be.

[Brief explanation of the drawing]

Figure 1 shows the nozzle in a suspended state when not refueling, Figure 2 is a cross-sectional view of the joint part in Figure 1, and Figure 3 shows the joint part bent from the state in Figure 2. FIG. 2... Main body, 8... Discharge pipe, 10... Grip, 12... Boss, 20... Joint, 28... Coil spring, 34... Hose, N... Nozzle, G... Center of gravity position.

Claims (1)

[Scope of utility model registration request] In a refueling nozzle consisting of a cylindrical main body with a flow path inside, a discharge pipe connected to or formed therein, and a grasping hand, the cylinder of the main body can be removed by tilting the upper end toward the discharge pipe. A cylindrical boss with a central axis that intersects diagonally with the central axis is formed near the gripping hand formation position, and the boss is connected to the boss via a spherical universal watertight joint having an outer dimension smaller than the outer diameter of the boss. and a refueling hose, the inner periphery of one end of the coil spring is closely fixed to the outer periphery of the boss part, and the length of the coil spring is set to such a length that at least the other end covers the watertight joint. Refueling nozzle.